JP5116563B2 - Cable fixing bracket for steel tower - Google Patents

Description

  The present invention relates to a cable fixing bracket for a steel tower for fixing a cable connected to a device such as an aerial injury light or an accident zone detection device (sensor) arranged on an upper part of a steel tower erected to construct a transmission line. About. More specifically, the present invention relates to a cable fixing bracket for a steel tower for fixing a cable connected to a device installed in the upper part of the steel tower along a structural material such as a pillar material or a beam material for constructing the steel tower.

  Conventionally, as shown in FIG. 1, devices such as an air injury light Ma and an accident section detection device (sensor for detecting an accident section) Mb are installed on an upper part of a steel tower on which a transmission line is installed. Various cables C such as a power line and a signal line are connected to these devices Ma and Mb. These cables C are structural materials B such as a pillar material Ba, a beam material Bb, and a brace material Bc constituting the tower A. Is connected to a power source or another device (not shown) installed below the tower A or on the ground.

  By the way, there are various types of steel towers, and as one of them, one end in a short direction perpendicular to the longitudinal direction of two strip-shaped plate portions extending with one direction as a longitudinal direction is connected, and two strip-shaped plates are connected. There are those constructed by using a structural steel B as a structural steel such as angle steel, C-shaped steel, H-shaped steel, etc. having a bent portion with an L-shaped cross-section with a right angle or a substantially right angle.

  When the cable C is disposed on the steel tower A as described above, general-purpose cable fixing brackets 50 and 60 as shown in FIGS. 21 (a) and 21 (b) are generally used. The cable fixing brackets 50 and 60 are both configured to be attachable to the structural material B and configured to be able to hold the cable C.

  More specifically, a cable fixing bracket 50 shown in FIG. 21A includes a pair of sandwiching bodies 51a and 51b that sandwich the cable C from both sides, and a fastening member that fastens the pair of sandwiching bodies 51a and 51b (in the drawing). And at least one clamping body 51a is fixed to the outer surface of the structural material B of the steel tower A (see, for example, Patent Document 1).

  On the other hand, the cable fixing bracket 60 shown in FIG. 21 (b) has a U-shaped cross section in which the base ends of a pair of facing pieces 61a and 61b that face each other with a gap therebetween are connected to each other via a connecting portion 61c. A metal fitting body 61 formed in the above, a push screw 62 screwed into one of the opposing pieces 61a, and a cable holding body 63 protruding from the outer surface of the other opposing piece 61b and configured to hold the cable C. The other facing piece 61b and the set screw 62 sandwich and fix a steel tower A (part Pa formed in the shape of a strip of steel) (hereinafter referred to as a strip-shaped plate portion). There are various types of cable holders 63 that hold the cable C differently. For example, the cable holder 63 is configured to insert the cable C, or is configured to sandwich the cable C from both sides. In any case, the cable C can be partially held.

A plurality of these cable fixing brackets 50, 60 are installed at intervals in the longitudinal direction of the structural material B, and the cable C is partially held by each cable fixing bracket 50, 60, so that the cable C is structured. The state along the material B can be arranged.
Registered Utility Model No. 3005145

  By the way, as shown in FIG. 1, the step bolt S for the operator to move up and down extends from the outer surface of the structural material B to the outside (outward with respect to the steel tower A) on the pillar material Ba of the steel tower A. A plurality of regions are arranged at intervals in the vertical direction, but when the cable fixing brackets 50 and 60 are attached to the structural material B as described above, an area in which the operator moves up and down (hereinafter referred to as operation) The cable fixing brackets 50 and 60 are projected in the area), and may hit or get caught on the clothes or equipment of the workers who move up and down or work, which may impair the operations of the workers. .

  Specifically, the cable fixing bracket 50 shown in FIG. 21A is fixed to the outer surface of the structural material B (a plane portion facing outward), so that it is located outward from the outer surface of the structural material B. Since it becomes the aspect which protruded largely in the operation | movement area | region, the cable fixing metal fitting 50 might hit or hooked an operator, and the operator's operation | movement might be impaired.

  21B is attached to the steel tower A so that the strip A of the structural material B is interposed between the pair of facing pieces 61a and 61b of the metal body 61. Since either the cable holder 63 or the push screw 62 is located outside the outer surface of the structural material B and protrudes greatly into the operation area, this is also the cable fixing bracket 60 (cable The holder 63 or the push screw 62) may hit or get caught by the worker, which may impair the operation of the worker.

  In particular, the cable fixing bracket 60 shown in FIG. 21B is configured to apply a clamping force between the pressing screw 62 and the other opposing piece 61b by the pressing action of the pressing screw 62. When an external force is applied by hitting or getting caught by the worker, the metal fitting body 61 rotates around the set screw 62, and the posture of the cable holder 63 is changed so that the cable C cannot be held in the original posture. There is also a problem that the metal fitting body 61 falls off from the structural material B and the holding of the cable C cannot be maintained.

  Therefore, in view of such circumstances, the present invention provides a steel tower cable fixing bracket that can securely hold a cable at a predetermined position of a structural material for constructing a steel tower without harming an operator's operation. Is an issue.

  The cable fixing bracket for a steel tower according to the present invention has one end in the short direction perpendicular to the longitudinal direction of the two strip-shaped plate portions extending in one direction as the long ends, and the two strip-shaped plate portions are perpendicular or substantially perpendicular. A cable fixing bracket for a steel tower for arranging a cable along the structural material with respect to a steel tower constructed using a structural steel having a bent portion formed as a structural material, the metal fitting attached to the structural material A main body and holding means configured to be able to hold the cable directly or indirectly, the metal fitting main body being screwed along one of the belt-like plate portions, and extending from the base portion And a holding means mounting portion to which the holding means is attached. The holding means mounting portion is a projection region of the band-shaped plate portion in a direction perpendicular to the plane with respect to one band-shaped plate portion and a direction perpendicular to the plane with respect to the other band-shaped plate portion. The strip-shaped plate part to Characterized in that it is formed so as to position the holding means within the overlapping region where the projection regions overlap.

  According to the cable fixing bracket for a steel tower having the above-described structure, the holding member and the cable directly or indirectly held by the holding means are structural members with respect to an operation region in which an operator moves up and down with respect to the steel tower or works. It will be arranged in the overlap area (dead space) isolated by. That is, the edge of the bent portion of the structural steel as the structural material for constructing the steel tower (the other end in the short direction of the two strip-shaped plate portions) is the closest position to the operator's operation region side, so the two An imaginary line extending in a direction orthogonal to the band-shaped plate part from the other end of the band-shaped plate part, and a virtual line extending in a direction orthogonal to the band-shaped plate part from the other end of the other band-shaped plate part The region surrounded by (overlapping region) is a position blocked (isolated) from the operation region by the structural material. Therefore, the holding means and the cable are in a state of being isolated from the operation area, do not hinder the operation of the worker, and do not change the posture by the contact of the worker, and are maintained in a constant posture. Can do.

  As one aspect of the present invention, it is preferable that the holding means mounting portion is formed so as to be positioned in the overlapping region together with the holding means. If it does in this way, a holding means attaching part, a holding means, and a cable will be located in the said duplication area | region, and most or the whole of the cable fixing bracket for steel towers will be in the state isolated from the operator's operation | movement area | region by the bracket main body. Therefore, contact with the worker can be reliably suppressed.

  As another aspect of the present invention, the holding means mounting portion includes a triangular region surrounded by two strip-shaped plate portions and a straight virtual line connecting the other ends of the two strip-shaped plate portions in the overlapping region. More preferably, it is formed so as to be positioned together with the holding means. In this way, the holding means mounting portion, the holding means, and the cable are located deeper in the overlapping area, and most or the whole of the cable fixing bracket for the tower is removed from the operator's operating area by the structural material. Since it will be in the isolated state, a contact with an operator can be suppressed more reliably.

  As another aspect of the present invention, the base portion may be formed in a plate shape, and the holding means attaching portion may extend straight in a direction intersecting the surface of the base portion. If it does in this way, a holding means and a cable can be located in an overlap field, without making a metal fitting main part into a complicated structure. In particular, when the holding means mounting portion is formed so as to be positioned in the overlapping region, most or the whole of the fixing bracket is positioned in the overlapping region, thereby more reliably suppressing contact with the operator. Can do.

  As yet another aspect of the present invention, the metal fitting body is formed by bending a metal plate so as to form a ridgeline, whereby a base portion is formed on one end side with respect to the ridgeline and the other end side. It is preferable that a holding means mounting portion is formed on the. By doing so, the base portion of the metal fitting body and the holding means mounting portion are integrally formed, so that the strength is excellent. Moreover, a metal fitting main body can be produced by a simple process.

  As still another aspect of the present invention, the holding means includes a U bolt whose both end portions are inserted into the holding means mounting portion, and nuts that are screwed to both end portions of the U bolt. It is preferable that the cable disposed between the U-bolt and the holding means mounting portion is held by tightening a nut screwed into the nut. If it does in this way, a cable can be held in the state where movement in the direction orthogonal to the axis of a cable was controlled certainly.

  In this case, it is preferable that at least the U-shaped arc portion of the U bolt is covered with an elastic material. If it does in this way, even if a cable is directly pinched and hold | maintained with a U volt | bolt, an elastic material will protect a cable and can prevent damage to a cable.

  Further, the holding means further includes a cable receiving material fixed to the holding means mounting portion, and the cable receiving material has a concave line for arranging the cable between the both ends of the U-bolt. It is preferable to be formed so as to face the peripheral side. If it does in this way, the inner periphery of a concave strip and a U bolt (U-shaped circular arc part) will surround substantially the entire perimeter of the cable, and it can hold a cable more securely in a predetermined position. it can.

  As described above, according to the steel tower cable fixing bracket according to the present invention, the cable can be reliably held at a predetermined position of the structural material for constructing the steel tower without harming the operation of the operator. Can have an effect.

  Hereinafter, a steel tower cable fixing bracket according to an embodiment of the present invention will be described with reference to the accompanying drawings.

(First embodiment)
First, a steel tower cable fixing bracket (hereinafter simply referred to as a fixing bracket) according to a first embodiment of the present invention will be described. As shown in FIG. 1, the fixing bracket according to the present embodiment detects an air injury light Ma or an accident zone detection device Mb (detects an accident zone) installed on the upper part of a steel tower A for constructing a transmission line (not shown). The various cables C connected to the devices Ma and Mb (such as sensors) are arranged along the structural material B for constructing the tower A so as to guide the equipment (not shown) below the tower A or on the ground. Is for.

  Here, prior to the detailed description of the fixing bracket according to the present embodiment, the steel tower A to which the fixing bracket is attached will be schematically described.

  In such a steel tower A, as shown in FIGS. 2A to 2C, two strip-shaped plate portions Pa and Pb extending in one direction as a longitudinal end are connected to each other in the short direction perpendicular to the longitudinal direction. Further, a structural steel B having a bent portion P in which the two strip-shaped plate portions Pa and Pb form a right angle or a substantially right angle (an angle steel, an angled steel (C-shaped steel), or an H-shaped steel) B It is built with. That is, the steel tower A is constructed by using the structural steel B as the structural steel B in which the two strip-shaped plate portions Pa and Pb form a bent portion P having an L-shaped cross section and at least a part of the bent portion P. In this embodiment, as shown in FIG. 2 (a), two strip-shaped plate portions Pa and Pb extending in one direction are connected to each other at one end in the short direction perpendicular to the longitudinal direction, and two strip-shaped plates The steel tower A constructed by using the angle steel (equal side angle steel) composed only of the bent part P in which the parts Pa and Pb form a right angle or a substantially right angle as a structural material B is an object.

  As the structural material B for constructing the steel tower A, as shown in FIG. 1, the pillar material Ba standing at the four corners of the steel tower A, the beam material Bb extending in the lateral direction and connecting the pillar materials Ba to each other, and obliquely There is a brace material Bc that extends and connects the column members Ba or the beam members Bb, and the column member Ba has the apex of the bent portion P (the ridge line that becomes the boundary between the two strip-shaped plate portions Pa and Pb) at the tower A. The beam member Bb and the brace member Bc are arranged such that one strip plate portion Pa is flush with the strip plate portions Pa and Pb of the pillar material Ba, and the other strip plate portion Pb It arrange | positions so that it may extend toward the center of the steel tower A from one strip | belt-shaped board | plate part Pa.

  And this steel tower A is provided so that the step volt | bolt S which an operator raises / lowers with respect to pillar material Ba may extend toward outward. That is, in the steel tower A, a plurality of step bolts S are provided at intervals in the vertical direction so that an operator can move up and down outside the steel tower A. A plurality of step bolts S are provided over substantially the entire length in the height direction of the steel tower A, but in FIG. 1, only a part of the lower part of the steel tower A is shown, and the other parts are not shown. Yes. As shown in FIG. 3, the step bolt S has a male screw Sb connected to one end of a rod-shaped step Sa, and the male screw Sb is inserted into a hole H formed in the columnar material Ba (band-shaped plate portion Pa). After being inserted, the nut N is screwed to be fixed to the pillar material Ba.

  The fixing bracket according to the present embodiment is intended for the steel tower A, and as shown in FIGS. 4A and 4B, the bracket body 10 attached to the structural material B and the cable C are directly connected. Or the holding means 20 comprised so that it could hold | maintain indirectly was provided.

  The metal fitting body 10 includes a base portion 100 that is screwed along one strip-shaped plate portion Pa, and a holding means attaching portion 110 that extends from the base portion 100 and to which the holding means 20 is attached.

  The base portion 100 is formed in a plate shape so as to be along one belt-like plate portion Pa. In the present embodiment, the base portion 100 is formed in a rectangular shape in plan view, and is screwed to the strip-shaped plate portion P in a state where one end is substantially parallel to the other end of the strip-shaped plate portion Pa. ing. The base portion 100 according to the present embodiment is sized so that one end thereof is positioned in the vicinity of the other end (tip) of the strip-shaped plate portion Pa when attached to the strip-shaped plate portion Pa (screwed state). Is set.

  The base portion 100 is provided with a screw insertion hole 101 through which the screw members S and D for screwing to the belt-like plate portion Pa are inserted. In the present embodiment, the screw insertion hole 101 is set to a hole diameter corresponding to the outer diameter of the male screw Sb of the step bolt S attached to the structural material B.

  The holding means mounting portion 110 includes a projection region X of the band-shaped plate portion Pa in the direction perpendicular to the surface of the structural material B with respect to the one band-shaped plate portion Pa, and the band-shaped plate in the direction perpendicular to the plane with respect to the other band-shaped plate portion Pb. The holding means 20 is formed so as to be positioned in the overlapping area Z where the projection area Y of the part Pb overlaps. That is, the holding means mounting portion 110 includes two strip-shaped plate portions Pa and Pb, a virtual line La that is substantially parallel to one strip-shaped plate portion Pa and extends from the other end of the other strip-shaped plate portion Pb, and the other strip-shaped plate portion. It is formed so that the holding means 20 and the cable C are positioned in a region (= overlapping region Z) surrounded by a virtual line Lb extending from the other end of one strip-shaped plate portion Pa so as to be substantially parallel to the plate portion Pb. ing. Further, the holding means attaching portion 110 according to the present embodiment is formed so that most of the holding means attaching portion 110 is located in the overlapping region Z together with the holding means 20.

  Here, the holding means mounting portion 110 according to the present embodiment will be specifically described. The holding means mounting portion 110 is formed in a plate shape like the base portion 100, and is a direction intersecting the base portion 100. Straight out. The holding means mounting portion 110 extends from one end of the base portion 100 so as to form a predetermined angle (acute angle) with respect to the base portion 100. In this embodiment, the holding means mounting portion 110 is approximately 45 with respect to the base portion 100. Extends to an angle of °. That is, the metal fitting body 10 is formed so that the inner angle between the holding means mounting portion 110 and the base portion 100 is 45 °.

  Since the metal fitting body 10 according to the present embodiment is formed so that each of the base portion 100 and the holding means mounting portion 110 is formed in a plate shape as described above, the metal plate material is bent so as to be bent. Thus, the base portion 100 is formed on one end side with the bending ridge line as a boundary, and the holding means attaching portion 110 is formed on the other end side. As a result, the holding means mounting portion 110 extends from one end of the base portion 100 as described above.

  As described above, the metal fitting body 10 according to the present embodiment is sized so that one end is positioned in the vicinity of the other end of the strip-shaped plate portion Pa in a state where the base portion 100 is screwed to the strip-shaped plate portion Pa. The one end of the base portion 100 and the base end portion (bent portion) of the holding means mounting portion 110 are located slightly outside the overlapping region Z. As described above, an acute angle is formed with respect to the base portion 100. By doing so, the holding means 20 and the cable C held by the holding means 20 are positioned in the overlapping area Z, and most of the holding means mounting portion 110 is positioned in the overlapping area Z.

  When the holding means mounting portion 110 according to the present embodiment positions the holding means mounting portion 110 itself together with the holding means 20 in the overlapping region Z, the form (size, shape, etc.) of the base portion 100 and the base portion 100 The amount of extension from the base portion 100 and the angle with respect to the base portion 100 are set with reference to the attachment position (attachment mode) with respect to the strip-shaped plate portion Pa and the extension position of the holding means attachment portion 110 from the base portion 100. Since the holding means mounting portion 110 according to the present embodiment extends from one end of the base portion 100, the angle with respect to the base portion 100 and the amount of extension from the base portion 100 are determined based on one end of the base portion 100. ing.

  In the holding means mounting portion 110, insertion holes 111 a and 111 b that pass through both end portions of a U-bolt 200, which will be described later, constituting the holding means 20, are arranged in pairs along the extending direction of the holding means mounting portion 110. It is provided as follows.

  The metal fitting body 10 according to the present embodiment is provided with a reinforcing rib 120 that connects the base portion 100 and the holding means mounting portion 110. The reinforcing rib 120 connects one end side of the base portion 100 and the proximal end side of the holding means mounting portion 110, and the relative positional relationship between the base portion 100 and the holding means mounting portion 110 is in an appropriate state. It is supposed to be maintained. In the present embodiment, as the reinforcing rib 120, a first rib connecting a part of the upper end of the base part 100 and a part of the upper end of the holding means mounting part 110, a part of the lower end of the base part 100, and the holding means. The 2nd rib which connected a part of lower end of the attaching part 110 is provided.

  As shown in FIG. 5, the holding means 20 according to the present embodiment includes a U bolt 200 and nuts 210 that are screwed to both ends of the U bolt 200 inserted into the insertion holes 111 a and 111 b of the holding means mounting portion 110. I have. The holding means 20 is configured to sandwich and hold the cable C disposed between the U bolt 200 and the holding means mounting portion 110 by tightening a nut 210 screwed into the end of the U bolt 200. ing. In the U-bolt 200 according to this embodiment, a U-shaped arc portion is covered with an elastic material 202, and the cable C is covered with the elastic material 202 when the cable C is held. .

  The holding means 20 according to the present embodiment includes a cable receiving material 220 fixed to the holding means mounting portion 110 in addition to the U bolt 200 and the nut 210. The cable receiving member 220 is formed such that a concave strip 221 for running along the cable C is opposed to the inner peripheral side of the arc portion (elastic material 202) between both end portions of the U-bolt 200. That is, the cable receiving member 220 is formed such that the concave strip 221 along which the cable C is extended extends in a direction orthogonal to the extending direction of the holding means mounting portion 110.

  The cable receiving member 220 will be described in detail. The cable receiving member 220 is fixed to the holding means mounting portion 110 after bending a thin metal plate. The cable receiving member 220 is formed by bending the strip so that the entire central portion in the longitudinal direction protrudes to one surface side (the other surface side is depressed). Is bent so as to be bent to one surface side, and formed into a substantially M-shaped cross section. The concave strip 211 only needs to follow the cable C, but in the present embodiment, the inner peripheral surface is formed in a circular arc shape so that the outer peripheral surface of the cable C is in close contact. The cable receiving member 220 has both ends bent to one surface side fixed to the holding means attaching portion 110 by welding or the like. Since the cable receiving member 220 according to the present embodiment is formed wider than the distance between both ends of the U bolt 200, the concave strip 221 faces the U-shaped arc portion (elastic material 202) of the U bolt 200. That is, the concave strip 211 is disposed so as to be positioned between the two insertion holes 111a and 111b of the holding means mounting portion 110, and the holes 222a and 222b through which both ends of the U-bolt 200 are inserted are inserted into both sides of the concave strip 221. It is drilled so as to be concentric with the holes 111a and 111b.

  One or more holding means 20 are attached to the holding means attaching portion 110. Two holding means 20 according to the present embodiment are provided so as to be aligned in the extending direction of the holding means attaching portion 110, and the inner angle between the base portion 100 and the holding means attaching portion 110 with respect to the holding means attaching portion 110. It is attached to one side of the side.

  The fixing bracket 1 according to the present embodiment has the above-described configuration, and a plurality of structural members B are arranged at intervals in the longitudinal direction of the structural material B with respect to the structural material B such as the columnar material Ba, the beam material Bb, and the brace material Bc. Is done. Thus, when the fixing bracket 1 is disposed on the structural material B, the fixing bracket 1 is on the inner corner side of the two strip-shaped plate portions Pa and Pb, as shown in FIGS. 6 (a) and 6 (b). A screw member inserted into the hole H formed in the band-shaped plate portion Pa and the screw insertion hole 101 of the fixing bracket 1 after the base portion 100 is overlapped with the surface (inner side surface) of one band-shaped plate portion Pa. It is attached to the structural material B (steel tower A) by screwing nuts N into S and D.

  The fixture 1 according to the present embodiment is attached to the pillar material Ba as the structural material B by using a step bolt S as a screw member, as shown in FIG. That is, the fixing bracket 1 according to the present embodiment includes a step bolt S inserted into the hole H formed in the strip-shaped plate portion Pa of the pillar material Ba and the screw insertion hole 101 of the base portion 100 with respect to the pillar material Ba. The nut N is screwed onto the male screw Sb. In this case, the fixing bracket 1 may be provided for each step bolt S. However, when the interval between the step bolts S is narrower than the interval at which the fixing bracket 1 is disposed, for example, one fixing bolt 1 is provided for the plurality of step bolts S. You may make it attach the fixing metal fitting 1 every other or every plurality.

  On the other hand, as shown in FIG. 6B, the fixing bracket 1 according to the present embodiment is attached to the beam material Bb, the brace material Bc, and the like by using a general-purpose bolt D as a screw member. That is, the fixing bracket 1 according to the present embodiment is inserted into the beam Hb and the brace material Bc through the hole H previously drilled in the belt-like plate portion Pa and the screw insertion hole 101 of the base portion 100. It is attached by screwing a nut N onto the bolt D. Since the beam bolt Bb and the brace material Bc are not provided with the step bolt S like the column material Ba, the bolt D is inserted into a predetermined position (attachment position of the fixing bracket 1) of the strip-shaped plate portion Pa. Hole H is drilled. As the bolt D, one having the same diameter as or smaller than the male screw Sb of the step bolt S is employed. Thereby, it can respond with the fixing metal fitting 1 of the same structure, even if the object to attach is any of pillar material Ba, beam material Bb, and brace material Bc.

  Then, the cable C is held by the holding means 20 of each fixing bracket 1. That is, the cable C is sandwiched and held between the U bolt 200 (U-shaped arc portion) and the cable receiving member 220 (the inner surface of the concave strip 221). Thus, the long cable C connected to the equipment such as the air injury light Ma and the accident section detection device Mb installed on the upper part of the steel tower A is moved in the longitudinal direction by the holding means 20 of each fixing bracket 1. It is held at a plurality of positions at intervals and is in a state along the structural material B.

  In this state, the holding means 20 of the fixing bracket 1 and the cable C are located in the overlapping region Z of the structural material B. Therefore, even if the cable C is arranged so as to be along the structural material B constituting the steel tower A, the fixing bracket 1 and the cable C do not exist in an operation region where the worker moves up and down, works, and the like. That is, the target steel tower A is a portion in which both ends of the bent portion P of the structural material B (one end (vertex) and the other end of the two strip-like plate portions Pa and Pb) protrude most toward the operation region side of the operator. The overlapping region Z is a region separated from the operator's operation region by the structural material B (bending portion P: the two strip-shaped plate portions Pa and Pb). Thereby, the cable C and the fixture 1 can be maintained in a constant posture without hindering the operation of the worker and without changing the posture by the contact of the worker.

  As described above, according to the fixing bracket 1 according to the present embodiment, the bracket main body 10 attached to the structural material B and the holding means 20 configured to be able to hold the cable C directly or indirectly are provided. The metal fitting body 10 includes a base portion 100 that is screwed along one strip-shaped plate portion Pa, and a holding means attaching portion 110 that extends from the base portion 100 and to which the holding means 20 is attached. The portion 110 is a projection region X of the band-shaped plate portion Pa in the direction perpendicular to the surface of the structural material B with respect to one band-shaped plate portion Pa, and projection of the band-shaped plate portion Pb in the direction perpendicular to the plane with respect to the other band-shaped plate portion Pb. Since the holding means 20 is formed so as to be positioned in the overlapping area Z where the area Y overlaps, the holding means 20 and the cable C held by the holding means 20 are located in the operation area of the operator. That there is no, there is no prejudice to the operation of the worker. Moreover, since the fixing means 1 having the above-described configuration does not come into contact with the worker, the cable C can be reliably held at a predetermined position of the structural material B without changing the posture or coming off.

  The holding means 20 includes a U bolt 200 and a nut 210, and the holding means mounting portion 110 has insertion holes 111 a and 111 b through which both end portions of the U bolt 200 are inserted in the extending direction of the holding means mounting portion 110. By tightening a nut 210 screwed into the end of the U-bolt 200 that is provided as a pair in parallel and inserted through the insertion holes 111a and 111b, the U-bolt 200 and the holding means mounting portion 110 are Since it is configured to hold the cable C disposed between them, the cable C can be held in a state in which the movement of the cable C in the direction orthogonal to the axis is reliably restricted.

  In particular, since the U-shaped arc portion of the U bolt 200 is covered with the elastic material 202, the cable C can be protected by the elastic material 202 even if the cable C is directly sandwiched and held. Damage can be prevented.

  The holding means 20 further includes a cable receiving member 220 fixed to the holding means attaching portion 110, and the cable receiving member 220 has a recess 221 along the cable C in the extending direction of the holding means attaching portion 110. Is formed so as to extend in a direction orthogonal to the inner surface of the recess 221 and the U-bolt 200 surrounds substantially the entire outer periphery of the cable C, so that the cable C can be held more securely at a predetermined position. can do.

  Furthermore, since one or two or more holding means 20 are attached to the holding means attaching portion 110, two or more cables C can be held by one fixing bracket 1.

(Second embodiment)
Next, a steel tower cable fixing bracket (fixing bracket) according to a second embodiment of the present invention will be described. As in the first embodiment, the fixing bracket according to the present embodiment holds the cable C connected to the devices Ma and Mb installed on the upper part of the steel tower A shown in FIG. The steel tower A constructed from the structural steel having the structural material B (the column material Ba, the beam material Bb, and the brace material Bc) is an object to be attached. In the following description, the same name and the same reference numerals are assigned to the same or corresponding components as those in the first embodiment.

  As shown in FIGS. 7A and 7B, the fixing bracket 1 according to the present embodiment directly or directly connects the bracket body 10 attached to the structural material B and the cable C, as in the first embodiment. A holding means 20 configured to be indirectly holdable, and the metal fitting body 10 is screwed to the belt-like plate portion Pa, extends from the base portion 100, and the holding means 20 is provided. And a holding means attaching portion 110 to which is attached.

  The base portion 100 is formed in a plate shape so as to be along one belt-like plate portion Pa. In the present embodiment, the base portion 100 is formed in a rectangular shape in plan view, and is screwed to the strip-shaped plate portion P in a state where one end is substantially parallel to the other end of the strip-shaped plate portion Pa. ing. And the base part 100 which concerns on this embodiment is the state (screwed state) attached to strip | belt-shaped board part Pa, and the full length from one end to the other end is in the width | variety of the transversal direction of strip | belt-shaped board part Pa. The size is set to fit. That is, the base part 100 is set to a size such that the entire base part 100 is located in the overlapping region Z in a state where the base part 100 is screwed to the belt-like plate part Pa.

  The base portion 100 is provided with a screw insertion hole 101 through which the screw members S and D for screwing to the belt-like plate portion Pa are inserted. In the present embodiment, the screw insertion hole 101 is set to a hole diameter corresponding to the outer diameter of the male screw Sb of the step bolt S attached to the structural material B.

  The holding means mounting portion 110 includes a projection region X of the band-shaped plate portion Pa in the direction perpendicular to the surface of the structural material B with respect to the one band-shaped plate portion Pa, and the band-shaped plate in the direction perpendicular to the plane with respect to the other band-shaped plate portion Pb. The holding means 20 is formed so as to be positioned in the overlapping area Z where the projection area Y of the part Pb overlaps. That is, the holding means mounting portion 110 includes two strip-shaped plate portions Pa and Pb, a virtual line La that is substantially parallel to one strip-shaped plate portion Pa and extends from the other end of the other strip-shaped plate portion Pb, and the other strip-shaped plate portion. It is formed so that the holding means 20 and the cable C are positioned in a region (= overlapping region Z) surrounded by a virtual line Lb extending from the other end of one strip-shaped plate portion Pa so as to be substantially parallel to the plate portion Pb. ing. Further, the holding means attaching portion 110 according to the present embodiment is formed so that the entire holding means attaching portion 110 is located in the overlapping region Z together with the holding means 20.

  The metal fitting body 10 according to the present embodiment includes a linear imaginary line Lc that connects the other ends of the two belt-like plate portions Pa and Pb in the structural material B in the overlapping region Z, and two belt-like plate portions Pa, The entire holding means mounting portion 110 and the holding means in a triangular area surrounded by Pb (a triangular area that is a half of the overlapping area Z (X + Y) where the projection areas X and Y of the two strip-shaped plate portions Pa and Pb overlap). The holding means mounting portion 110 is formed so that the entirety of 20 is located. That is, the fixing metal fitting 1 according to the present embodiment is formed so that the whole (the metal fitting main body 10 (the base portion 100 and the holding means mounting portion 110) and the holding means 20) is located in the triangular region.

  Here, the holding means mounting portion 110 according to the present embodiment will be specifically described. The holding means mounting portion 110 is formed in a plate shape like the base portion 100, and is a direction intersecting the base portion 100. Straight out. The holding means mounting portion 110 extends from one end of the base portion 100 so as to form a predetermined angle (acute angle) with respect to the base portion 100. In this embodiment, the holding means mounting portion 110 is approximately 45 with respect to the base portion 100. Extends to an angle of °. That is, the metal fitting body 10 is formed so that the inner angle between the holding means mounting portion 110 and the base portion 100 is 45 °.

  The holding means mounting portion 110 is positioned in the overlapping area Z (triangular area) together with the holding means 20, so that the form (size, shape, etc.) of the base portion 100 and the mounting position (attachment) of the base portion 100 to the belt-like plate portion Pa are attached. Aspect), the extension amount from the base portion 100 and the angle with respect to the base portion 100 are set based on the extension position of the holding means mounting portion 110 from the base portion 100. Since the holding means mounting portion 110 according to the present embodiment extends from one end of the base portion 100 having a size that fits within the width of the strip-shaped plate portion Pa, the angle with respect to the base portion 100 with respect to the one end of the base portion 100. The amount of extension from the base portion 100 is determined. Note that the metal base 10 according to the present embodiment is also bent so that a metal plate is bent, whereby a base portion 100 is formed on one end side with a bending ridge line as a boundary, and on the other end side. A holding means mounting portion 110 is formed.

  Since the holding means 20 is composed of a U bolt 200, a nut 201, and a cable receiving member 220 as in the first embodiment, description thereof is omitted here. Needless to say, the holding means mounting portion 110 has two insertion holes 111a and 111b through which both end portions of the U-bolt 200 are inserted in the extending direction of the holding means mounting portion 110 in order to attach the holding means 20. One set or a plurality of sets are provided so as to correspond to the arrangement of the holding means 20 to be attached.

  The fixing bracket 1 according to the present embodiment has the above-described configuration, and a plurality of structural members B are arranged at intervals in the longitudinal direction of the structural material B with respect to the structural material B such as the columnar material Ba, the beam material Bb, and the brace material Bc. Is done. Thus, when the fixing bracket 1 is disposed on the structural material B, the fixing bracket 1 has a base portion on the surface (inner side surface) of one band-shaped plate portion Pa on the inner corner side of the two band-shaped plate portions Pa and Pb. After superposing 100, the structural member B is formed by screwing nuts N into screw members S and D inserted into the holes H formed in the strip-shaped plate portion Pa and the screw insertion holes 101 of the fixing bracket 1. It is attached to (Steel Tower A).

  Also in the fixture 1 according to the present embodiment, as shown in FIG. 7A, it is attached to the pillar material Ba as the structural material B by using the step bolt S as a screw member. That is, the fixing bracket 1 according to the present embodiment includes a step bolt S inserted into the hole H formed in the strip-shaped plate portion Pa of the pillar material Ba and the screw insertion hole 101 of the base portion 100 with respect to the pillar material Ba. The nut N is screwed onto the male screw Sb.

  Further, as shown in FIG. 7B, the fixing bracket 1 according to the present embodiment is attached to the beam material Bb, the brace material Bc, and the like by using a general-purpose bolt D as a screw member. That is, the fixing bracket 1 according to the present embodiment is inserted into the beam Hb and the brace material Bc through the hole H previously drilled in the belt-like plate portion Pa and the screw insertion hole 101 of the base portion 100. It is attached by screwing a nut N onto the bolt D. Even in this case, the beam material Bb and the brace material Bc are not provided with the step bolts S unlike the column material Ba, so that the beam material Bb and the brace material Bc are similar to the first embodiment and the second embodiment. A hole H for inserting the bolt D is drilled at a predetermined position (attachment position of the fixing bracket 1) of the strip-shaped plate portion Pa of the brace material Bc. Further, the bolt D having the same diameter as or smaller than the male screw Sb of the step bolt S is employed.

  Then, the cable C is sandwiched and held by the holding means 20 in each fixing bracket 1. As a result, the long cable C connected to the equipment such as the air injury light Ma and the accident section detection device Mb installed on the upper part of the steel tower A is in a state along the structural material B.

  In this state, the fixing metal fitting 1 (the metal fitting body 10 and the holding means 20) and the cable C are located in a triangular area in the overlapping area Z, and therefore, the fixing metal fitting 1 (the metal fitting body 10 and the holding means 20) is arranged along the structural material B constituting the tower A. Even if the cable C is arranged, it does not exist in the operation area of the operator. That is, the fixing metal fitting 1 (the metal fitting body 10 and the holding means 20) and the cable C are isolated (hidden) from the operation area of the operator by the structural material B (bending portion P). As a result, the cable C and the fixture 1 can be maintained in a constant posture without obstructing the operation of the worker and without changing the posture by the contact of the worker.

  As described above, the fixing bracket 1 according to the present embodiment has the same operations and effects as the first embodiment because the basic configuration and mounting manner are the same as those of the fixing bracket 1 of the first embodiment. Can do. In particular, in the present embodiment, the holding means attaching portion 110 is a linear virtual linking the two strip-shaped plate portions Pa and Pb and the other ends of the two strip-shaped plate portions Pa and Pb in the overlapping region Z. Since the holding means 20 is formed so as to be located in the triangular area surrounded by the line Lc, the fixing means 1 and the cable C are located in a deeper position in the overlapping area Z and the operator's operation area Therefore, contact with the operator can be more reliably suppressed.

(Third embodiment)
Next, a steel tower cable fixing bracket (fixing bracket) according to a third embodiment of the present invention will be described. As in the first embodiment and the second embodiment, the fixing bracket according to the present embodiment holds the cable C connected to the devices Ma and Mb installed on the upper part of the steel tower A shown in FIG. A steel tower A constructed using a structural steel B (column material Ba, beam material Bb, brace material Bc) as a shape steel having a letter-shaped bent portion is a target for attachment. In the following description, the same name and the same reference numerals are assigned to the same or corresponding components as those in the first embodiment.

  As shown in FIGS. 8 (a) and 8 (b), the fixture 1 according to this embodiment includes a bracket body 10 attached to the structural material B and a cable C as in the first and second embodiments. Holding means 20 configured to be able to be held directly or indirectly, and the metal fitting body 10 is extended from the base portion 100, the base portion 100 being screwed to the belt-like plate portion Pa, A holding means attaching portion 110 to which the holding means 20 is attached.

  The base portion 100 is formed in a plate shape so as to be along one belt-like plate portion Pa. In the present embodiment, the base portion 100 is formed in a rectangular shape in plan view, and is screwed to the strip-shaped plate portion P in a state where one end is substantially parallel to the other end of the strip-shaped plate portion Pa. ing. And the base part 100 which concerns on this embodiment is the state (screwed state) attached to strip | belt-shaped board part Pa, and the full length from one end to the other end is in the width | variety of the transversal direction of strip | belt-shaped board part Pa. The size is set to fit. That is, the base part 100 is set to a size such that the entire base part 100 is located in the overlapping region Z in a state where the base part 100 is screwed to the belt-like plate part Pa.

  The base portion 100 is provided with a screw insertion hole 101 through which the screw members S and D for screwing to the belt-like plate portion Pa are inserted. In the present embodiment, the screw insertion hole 101 is set to a hole diameter corresponding to the outer diameter of the male screw Sb of the step bolt S attached to the structural material B.

  And the holding means attachment part 110 which concerns on this embodiment attaches the holding means 20 to both surfaces (both the inner angle side with respect to the base part 100, and an outer angle side). In the present embodiment, two holding means 20 are provided on the inner corner side of the holding means mounting portion 110, and two holding means 20 are also provided on the outer corner side. The two holding means 20 on the inner corner side are arranged side by side in the extending direction of the holding means attaching portion 110, and the two holding means 20 on the outer angle side are also arranged side by side in the extending direction of the holding means attaching portion 110. Has been. The inner corner side holding means 20 and the outer angle side holding means 20 (the holding position of the cable C in the holding means 20) are arranged so as to be offset in the longitudinal direction of the cable C to be held, as shown in FIG. ing.

  Since the holding means 20 is composed of a U bolt 200, a nut 201, and a cable receiving member 220 as in the first embodiment, description thereof is omitted here. Needless to say, in order to attach the holding means 20 in the above-described arrangement, the holding means attaching portion 110 has two pairs (a pair) of insertion holes 111a and 111b for inserting both ends of the U-bolt 200. Two sets are formed in the extending direction of the holding means mounting portion 110, and two sets are formed in a direction orthogonal to the extending direction (a direction corresponding to the longitudinal direction of the cable C), so that a total of four sets are formed in a matrix. Has been.

  The holding means mounting portion 110 includes a projection region X of the band-shaped plate portion Pa in the direction perpendicular to the surface of the structural material B with respect to the one band-shaped plate portion Pa, and the band-shaped plate in the direction perpendicular to the plane with respect to the other band-shaped plate portion Pb. All the holding means 20 attached to both surfaces are formed in an overlapping area Z where the projection area Y of the part Pb overlaps. That is, the holding means mounting portion 110 includes two strip-shaped plate portions Pa and Pb, a virtual line La that is substantially parallel to one strip-shaped plate portion Pa and extends from the other end of the other strip-shaped plate portion Pb, and the other strip-shaped plate portion. All of the holding means 20 and the cable C are positioned within a region (= overlapping region Z) surrounded by a virtual line Lb extending from the other end of one of the strip-shaped plate portions Pa so as to be substantially parallel to the plate portion Pb. Is formed. Further, the holding means attaching portion 110 according to the present embodiment is formed so that the entire holding means attaching portion 110 is located in the overlapping region Z together with the holding means 20.

  Here, the holding means mounting portion 110 according to the present embodiment will be specifically described. The holding means mounting portion 110 is formed in a plate shape like the base portion 100, and is a direction intersecting the base portion 100. Straight out. The holding means mounting portion 110 extends from one end of the base portion 100 so as to form a predetermined angle (acute angle) with respect to the base portion 100. In this embodiment, the holding means mounting portion 110 is approximately 45 with respect to the base portion 100. Extends to an angle of °. That is, the metal fitting body 10 is formed so that the inner angle between the holding means mounting portion 110 and the base portion 100 is 45 °.

  The holding means attaching portion 110 is positioned in the overlapping region Z together with the holding means 20, the form of the base portion 100 (size, shape, etc.), the attaching position (attachment manner) of the base portion 100 to the belt-like plate portion Pa, The extension amount from the base part 100 and the angle with respect to the base part 100 are set based on the extension position of the holding means mounting part 110 from the base part 100. Since the holding means mounting portion 110 according to the present embodiment extends from one end of the base portion 100 having a size that fits within the width of the strip-shaped plate portion Pa, the angle with respect to the base portion 100 with respect to the one end of the base portion 100. The amount of extension from the base portion 100 is determined. The metal fitting body 10 according to the present embodiment is also bent so as to bend the metal plate material, thereby forming the base portion 100 on one end side with the bending ridge line as a boundary and holding it on the other end side. The means mounting portion 110 is formed.

  The fixture 1 according to the present embodiment has the above-described configuration, and in the same manner as in the first and second embodiments, each structural material B is different from the structural material B such as the columnar material Ba, the beam material Bb, and the brace material Bc. Are arranged at intervals in the longitudinal direction. Thus, when the fixing bracket 1 is disposed on the structural material B, the fixing bracket 1 is on the inner corner side of the two strip-shaped plate portions Pa and Pb, as shown in FIGS. 9 (a) and 9 (b). A screw member inserted into the hole H formed in the band-shaped plate portion Pa and the screw insertion hole 101 of the fixing bracket 1 after the base portion 100 is overlapped with the surface (inner side surface) of one band-shaped plate portion Pa. It is attached to the structural material B (steel tower A) by screwing nuts N into S and D.

  The fixture 1 according to the present embodiment is attached to a pillar material Ba as a structural material B by using a step bolt S as a screw member, as shown in FIG. That is, the fixing bracket 1 according to the present embodiment includes a step bolt S inserted into the hole H formed in the strip-shaped plate portion Pa of the pillar material Ba and the screw insertion hole 101 of the base portion 100 with respect to the pillar material Ba. The nut N is screwed onto the male screw Sb.

  Further, as shown in FIG. 9B, the fixing bracket 1 according to the present embodiment is attached to the beam material Bb, the brace material Bc, and the like by using a general-purpose bolt D as a screw member. That is, the fixing bracket 1 according to the present embodiment is inserted into the beam Hb and the brace material Bc through the hole H previously drilled in the belt-like plate portion Pa and the screw insertion hole 101 of the base portion 100. It is attached by screwing a nut N onto the bolt D. Even in this case, the beam member Bb and the brace material Bc are not provided with the step bolts S unlike the column member Ba, so that the strips of the beam member Bb and the brace material Bc are formed as in the first embodiment. A hole H for inserting the bolt D is formed at a predetermined position of the plate portion Pa (attachment position of the fixing bracket 1). Further, the bolt D having the same diameter as or smaller than the male screw Sb of the step bolt S is employed.

  Then, the cable C is sandwiched and held by the holding means 20 in each fixing bracket 1. As a result, the long cable C connected to the equipment such as the air injury light Ma and the accident section detection device Mb installed on the upper part of the steel tower A is in a state along the structural material B.

  In this state, the fixing bracket 1 (the bracket main body 10 and the holding means 20) and the cable C are located in the triangular region within the overlapping region Z of the structural material B. Even if the cable C is arranged so as to be along, it does not exist in the operation area of the operator. That is, the fixing metal fitting 1 (the metal fitting body 10 and the holding means 20) and the cable C are isolated (hidden) from the operation area of the operator by the structural material B (bending portion P). As a result, the cable C and the fixture 1 can be maintained in a constant posture without obstructing the operation of the worker and without changing the posture by the contact of the worker.

  As described above, the fixing bracket 1 according to the present embodiment also has the same operations and effects as the first embodiment because the basic configuration and mounting manner are the same as those of the fixing bracket 1 of the first embodiment. Can do. In particular, since the fixing bracket 1 according to the present embodiment is configured to attach the holding means 20 using both surfaces of the holding means attachment portion 110, the single fixing metal fitting 1 can hold more cables C. it can.

(Fourth embodiment)
Next, a steel tower cable fixing bracket (fixing bracket) according to a fourth embodiment of the present invention will be described. As in the first to third embodiments, the fixing bracket according to the present embodiment holds the cable C connected to the devices Ma and Mb installed on the upper part of the steel tower A shown in FIG. The steel tower A constructed by using the structural steel B having the bent portion as the structural material B (the column material Ba, the beam material Bb, and the brace material Bc) is an object to be attached. In the following description, the same name and the same reference numerals are assigned to the same or corresponding configurations as those of the first to third embodiments.

  As shown in FIGS. 10 (a) and 10 (b), the fixture 1 according to the present embodiment includes a bracket body 10 attached to the structural material B and a cable C as in the first to third embodiments. Holding means 20 configured to be able to be held directly or indirectly, and the metal fitting body 10 is extended from the base portion 100, the base portion 100 being screwed to the belt-like plate portion Pa, A holding means attaching portion 110 to which the holding means 20 is attached.

  The base portion 100 is formed in a plate shape so as to be along one belt-like plate portion Pa. In the present embodiment, the base portion 100 is formed in a rectangular shape in plan view, and is screwed to the strip-shaped plate portion P in a state where one end is substantially parallel to the other end of the strip-shaped plate portion Pa. ing. And the base part 100 which concerns on this embodiment is the state (screwed state) attached to strip | belt-shaped board part Pa, and the full length from one end to the other end is in the width | variety of the transversal direction of strip | belt-shaped board part Pa. The size is set to fit. That is, the base part 100 is set to a size such that the entire base part 100 is located in the overlapping region Z in a state where the base part 100 is screwed to the belt-like plate part Pa.

  The base portion 100 is provided with a screw insertion hole 101 through which the screw members S and D for screwing to the belt-like plate portion Pa are inserted. In the present embodiment, the screw insertion hole 101 is set to a hole diameter corresponding to the outer diameter of the male screw Sb of the step bolt S attached to the structural material B.

  The holding means mounting portion 110 includes a projection region X of the band-shaped plate portion Pa in the direction perpendicular to the surface of the structural material B with respect to the one band-shaped plate portion Pa, and the band-shaped plate in the direction perpendicular to the plane with respect to the other band-shaped plate portion Pb. The holding means 20 is formed so as to be positioned in the overlapping area Z where the projection area Y of the part Pb overlaps. That is, the holding means mounting portion 110 includes two strip-shaped plate portions Pa and Pb, a virtual line La that is substantially parallel to one strip-shaped plate portion Pa and extends from the other end of the other strip-shaped plate portion Pb, and the other strip-shaped plate portion. It is formed so that the holding means 20 and the cable C are positioned in a region (= overlapping region Z) surrounded by a virtual line Lb extending from the other end of one strip-shaped plate portion Pa so as to be substantially parallel to the plate portion Pb. ing. Further, the holding means attaching portion 110 according to the present embodiment is formed so that the entire holding means attaching portion 110 is located in the overlapping region Z together with the holding means 20.

  Here, the holding means mounting portion 110 according to the present embodiment will be specifically described. The holding means mounting portion 110 is formed in a plate shape like the base portion 100, and is a direction intersecting the base portion 100. Straight out. The holding means mounting portion 110 extends from one end of the base portion 100 so as to form a predetermined angle with respect to the base portion 100. In the present embodiment, the holding means mounting portion 110 has an angle of approximately 90 ° with respect to the base portion 100. It extends to become. That is, the metal fitting body 10 is formed so that the internal angle between the holding means mounting portion 110 and the base portion 100 is 90 °.

  The holding means attaching portion 110 is positioned in the overlapping region Z together with the holding means 20, the form of the base portion 100 (size, shape, etc.), the attaching position (attachment manner) of the base portion 100 to the belt-like plate portion Pa, The extension amount from the base part 100 and the angle with respect to the base part 100 are set based on the extension position of the holding means mounting part 110 from the base part 100. Since the holding means mounting portion 110 according to the present embodiment extends from one end of the base portion 100 having a size that fits within the width of the strip-shaped plate portion Pa, the angle with respect to the base portion 100 with respect to the one end of the base portion 100. The amount of extension from the base portion 100 is determined. The metal fitting body 10 according to the present embodiment is also bent so as to bend the metal plate material, thereby forming the base portion 100 on one end side with the bending ridge line as a boundary and holding it on the other end side. The means mounting portion 110 is formed.

  Similar to the first to third embodiments, the holding means 20 is composed of the U-bolt 200, the nut 201, and the cable receiving member 220, and therefore the description thereof is omitted here. Needless to say, the holding means mounting portion 110 has two insertion holes 111a and 111b through which both end portions of the U-bolt 200 are inserted in the extending direction of the holding means mounting portion 110 in order to attach the holding means 20. One set or a plurality of sets are provided so as to correspond to the arrangement of the holding means 20 to be attached.

  The fixing bracket 1 according to the present embodiment has the above-described configuration, and a plurality of structural members B are arranged at intervals in the longitudinal direction of each structural material B with respect to the structural material B such as the pillar material Ba, the beam material Bb, and the brace material Bc. Is done. Thus, when the fixing bracket 1 is disposed on the structural material B, the fixing bracket 1 has a base portion on the surface (inner side surface) of one band-shaped plate portion Pa on the inner corner side of the two band-shaped plate portions Pa and Pb. After superposing 100, the structural member B is formed by screwing nuts N into screw members S and D inserted into the holes H formed in the strip-shaped plate portion Pa and the screw insertion holes 101 of the fixing bracket 1. It is attached to (Steel Tower A).

  Also in the fixture 1 according to the present embodiment, as shown in FIG. 10A, it is attached to the pillar material Ba as the structural material B by using the step bolt S as a screw member. That is, the fixing bracket 1 according to the present embodiment includes a step bolt S inserted into the hole H formed in the strip-shaped plate portion Pa of the pillar material Ba and the screw insertion hole 101 of the base portion 100 with respect to the pillar material Ba. The nut N is screwed onto the male screw Sb.

  Further, as shown in FIG. 10B, the fixing bracket 1 according to the present embodiment is attached to the beam material Bb, the brace material Bc, and the like by using a general-purpose bolt D as a screw member. That is, the fixing bracket 1 according to the present embodiment is inserted into the beam Hb and the brace material Bc through the hole H previously drilled in the belt-like plate portion Pa and the screw insertion hole 101 of the base portion 100. It is attached by screwing a nut N onto the bolt D. Even in this case, the beam member Bb and the brace material Bc are not provided with the step bolts S unlike the column member Ba, so that the strips of the beam member Bb and the brace material Bc are formed as in the first embodiment. A hole H for inserting the bolt D is formed at a predetermined position of the plate portion Pa (attachment position of the fixing bracket 1). Further, the bolt D having the same diameter as or smaller than the male screw Sb of the step bolt S is employed.

  Then, the cable C is sandwiched and held by the holding means 20 in each fixing bracket 1. As a result, the long cable C connected to the equipment such as the air injury light Ma and the accident section detection device Mb installed on the upper part of the steel tower A is in a state along the structural material B.

  In this state, the fixing metal fitting 1 (the metal fitting body 10 and the holding means 20) and the cable C are located in the overlapping region Z of the structural material B, so that they follow the structural material B constituting the tower A. Even if the cable C is arranged, it does not exist in the operation area of the operator. That is, the fixing metal fitting 1 (the metal fitting body 10 and the holding means 20) and the cable C are isolated (hidden) from the operation area of the operator by the structural material B (bending portion P). As a result, the cable C and the fixture 1 can be maintained in a constant posture without obstructing the operation of the worker and without changing the posture by the contact of the worker.

  As described above, the fixing bracket 1 according to the present embodiment has the same operations and effects as the first embodiment because the basic configuration and mounting manner are the same as those of the fixing bracket 1 of the first embodiment. Can do.

  By the way, in the said 1st thru | or 4th embodiment, it demonstrated on the assumption of the steel tower A constructed | assembled using the structural steel in which the overlap area (dead space) isolated with respect to the operator's operation | movement area | region was formed. However, because some steel towers are constructed using steel pipes as structural materials, a reference example of a cable fixing bracket for steel towers for arranging cables to steel towers using steel pipes as structural materials is described below. To do.

  First, reference examples of two types of cable fixing brackets (fixing brackets) for towers that are constructed using round steel pipes as structural materials will be described.

(First reference example)
As described above, in the steel tower in which the round steel pipe is adopted as the structural material, the two strip-shaped plate portions Pa and Pb of the structural material B form the bent portion P as in the steel tower A described in the above embodiments. Therefore, the fixing bracket according to the first reference example for the steel tower is configured to hold the cable on the center side of the steel tower.

  Specifically, as shown in FIG. 11, the fixing metal fitting according to this reference example is configured to be able to hold the cable C directly or indirectly with the metal fitting body 10 ′ attached to the steel pipe constituting the structural material B ′. Holding means 20 '. The metal fitting body 10 ′ is provided with a base portion 100 ′ arranged in contact with the outer periphery of the structural material B ′, and a holding means mounting portion that is connected to the base portion 100 ′ and to which the holding means 20 ′ is attached. 110 ′ and fixing means 125 ′ for fixing the base portion 100 ′ to the structural material B ′.

  The base portion 100 ′ is formed by bending a plate material, and an abutting portion 105 ′ formed in an arc shape to abut on the outer periphery of the cylindrical structural material B ′, and an abutting portion 105 ′. A pair of extended portions 106 ′ and 106 ′ extending from both ends of the corresponding contact portion 105 ′ toward the convex arcuate surface (outer surface), and bent outward from the ends of the extended portions 106 ′ and 106 ′. And a pair of connecting portions 107 ′ and 107 ′ for connecting the holding means attaching portion 110 ′. On the other hand, the holding means mounting portion 110 ′ is composed of a single flat plate, and is set to a size straddling the pair of connecting portions 107 ′ and 107 ′, and both end portions are screwed to the bolt D. The nut N is connected to the pair of connecting portions 107 ′ and 107 ′.

  The holding means 20 ′ includes a U-bolt 200 ′, a nut 210 ′ that is screwed to both ends of the U-bolt 200 ′, and a concave strip 221 ′ that runs along the cable C, as in the above embodiment. The cable C is sandwiched and held between the U-shaped arc portion of the U-bolt 200 ′ and the inner surface of the recess 221 ′ of the cable receiver. Accordingly, insertion holes 111 and 111b ′ for inserting both ends of the U-bolt 200 ′ are formed in the holding means attaching portion 110 ′ as a pair, and the cable receiving member 220 ′. Is fixed. In the figure, since two holding means 20 'are provided, two sets of insertion holes 111, 111b' for inserting both ends of the U-bolt 200 'are provided side by side in the holding means mounting portion 110'. In addition, two cable receiving members 220 ′ are provided corresponding to the arrangement of the insertion holes 111 and 111b ′.

  The fixing means 125 ′ is formed of a binding band, and is inserted into the metal fitting body 10 ′ (the pair of extending portions 106 ′ and 106 ′) and then wound around the structural material B ′ to bind the metal fitting body 10 ′. 'Is fixed to the structural material B'.

  As described above, the fixing bracket 1 ′ according to the present reference example is a steel tower constructed using a round steel pipe as a structural material B ′, unlike the shape steel in which the dead space is formed by the two strip-shaped plate portions Pa and Pb. Therefore, the holding means 20 ′ is located on the center side of the steel tower, that is, the holding means 20 ′ is within the projection region of the structural material B ′ in the center direction of the steel tower perpendicular to the axis of the structural material B ′. The metal fitting body 10 'is fixed so as to be located at the position. As a result, the holding means 20 ′ and the cable C are isolated from the operating area of the operator throughout the structural material B ′. Accordingly, the cable C can be reliably held in the fixing bracket 1 ′ according to the reference example without hindering the operation of the operator.

(Second reference example)
Since the fixing bracket according to the second reference example has the same configuration as the fixing bracket of the first reference example except for the holding means mounting portion, the same name and the same name are applied to the same or corresponding configuration as the first reference example. A description will be omitted with reference numerals, and only the holding means mounting portion that is different from the first reference example will be described.

  As shown in FIG. 12, the holding means mounting portion 110 ′ according to the second reference example includes a connection base portion 110a ′ disposed across a pair of connection portions 107 ′ and 107 ′, and the connection base portion 110a ′. And a mounting plate portion 110b 'to which the holding means 20' is attached. The connection base portion 110a ′ is formed of a flat plate like the holding means mounting portion 110 ′ in the first reference example, and a pair of connection portions 107 ′, 107 '. The mounting plate portion 110b 'is also formed of a flat plate, and one end is fixed to the connection base portion 110a' by welding or the like along the axis of the structural material B '. The mounting plate portion 110b ′ is provided with insertion holes 111a ′ and 111b ′ through which both end portions of a U-bolt 200 ′ serving as the holding means 20 ′ are inserted, and a cable receiving device that is one configuration of the holding means 20 ′. The material 220 'is fixed.

  Similarly to the first reference example, the fixing bracket 1 ′ according to the present reference example is intended for a steel tower using a round steel pipe as a structural material B ′, so that the holding means 20 ′ is located on the center side of the steel tower. That is, the metal fitting body 10 ′ is fixed so that the holding means 20 ′ is located in the projection region of the structural material B ′ in the central direction of the steel tower perpendicular to the axis of the structural material B ′. As a result, the holding member 20 ′ and the cable C are isolated from the operating area of the operator by the structural material B ′ itself. Accordingly, the cable C can be reliably held in the fixing bracket 1 ′ according to the reference example without hindering the operation of the operator.

  In the first reference example and the second reference example, a steel tower adopting a cylindrical steel pipe as the structural material B ′ is targeted. However, the fixture 1 ′ according to the first reference example and the second reference example is a square steel pipe. It can also be used for steel towers constructed using the structural material B ′. In this way, when a steel tower having a square steel pipe as the structural material B ′ is used as a target, the abutment portion 105 ′ of the metal fitting body 10 ′ is formed in a flat shape instead of an arc shape so as to abut on the flat portion of the square steel pipe. Alternatively, the contact portion 105 ′ may be formed in a bent shape so as to contact the corner portion of the square steel pipe.

  Next, reference examples of two types of cable fixing brackets (fixing brackets) for towers that are constructed using square steel pipes as structural materials will be described.

(Third reference example)
The fixing bracket according to this reference example operates the holding means 20 ′ and the cable C like the fixing bracket 1 described in the above embodiments and the fixing bracket 1 ′ described in the first reference example and the second reference example. Although not isolated from the area, the cable C can be stably fixed.

  More specifically, as shown in FIG. 13, the fixing metal fitting according to the third reference example is a metal fitting body 10 ″ attached to the structural material B ″ and the holding means 20 configured to hold the cable C. '' And.

  The metal fitting body 10 '' is attached on the basis of two planes forming a right angle among the four planes constituting the outer peripheral surface of the square steel pipe, and faces one of the two planes. As described above, a plate-like holding means attaching portion 110 '' that is screwed on one surface via screw members S '', D '' and nuts N '' and to which the holding means 20 '' is attached, A screw member S '' in the holding means mounting portion 110 '' is disposed extending along one of the two planes from one end of the holding means mounting portion 110 ''. , D ″ for restricting rotation around the axis of D ″, and extending from the other end of the holding means mounting portion 110 ″ in the same direction as the restricting piece 130 ″, with the tip on the one plane One of the holding means mounting portions 110 '' and the one by abutting The distance between the plane and a positioning piece 140 '' to a predetermined distance.

  The holding means mounting portion 110 ″ is formed in a band plate shape, and is provided with a screw insertion hole 101 ″ for inserting the screw member D ″ at a predetermined position. Then, the holding means 20 '' is arranged to align the cable C with the U bolt 200 '', the nut 210 '' that is screwed to both ends of the U bolt 200 '', as in the above embodiment. A cable receiving member 220 '' formed with a concave strip 221 '', and a cable C formed by a U-shaped arc portion of the U bolt 200 '' and an inner surface of the concave strip 221 '' of the cable receiving member 220 ''. Is sandwiched and held. Along with this, the holding means mounting portion 110 ″ is provided with two pairs of insertion holes 111 and 111b ″ for inserting both ends of the U-bolt 200 ″. The material 220 '' is fixed. In the present embodiment, a plurality of holding means 20 ″ having the above-described configuration are provided at intervals in the longitudinal direction of the holding means attaching portion 110 ″.

  The fixing bracket 1 '' according to the present reference example is attached by screw members S '', D '' in which the bracket body 10 '' is screwed into the structural material B ''. Since the holding means mounting portion 110 '' is arranged with a space with respect to one plane of the structural material B '', the heads of the screw members S '' and D '' inserted through the screw insertion holes 101 ''. The holding member mounting portion 110 '' is sandwiched between the portion and the nut N ″ screwed to the screw members S ″ and D ″, and the screw member D ″ is screwed into the structural material B ″. A spacer is interposed between the holding means mounting portion 110 ″ and the structural material B ″, and the holding means mounting portion 110 and the spacer are connected to the structural material B ″ via screw members S ″ and D ″. The above arrangement is achieved by screwing. In the drawing, the nut N ″ fixed to one plane of the structural material B ″ is also used as a spacer, and screw members S ″, D ″ inserted through the screw insertion hole 110 ″. Is screwed onto the nut N ″. When the structural material B ″ is a pillar material, a step bolt S ″ screwed to the pillar material is used as a screw member, and the holding means mounting portion 110 ″ is one surface of the structural material B ″. Are arranged opposite to each other with a space therebetween.

  The fixing bracket 1 '' according to the present reference example is fixed to the structural material B '' by a single screw member S '', D '' as described above. Since 'is arranged along the other plane perpendicular to one plane of the structural material B ″, the rotation of the screw members S ″, D ″ around the axis is reliably restricted. . Further, since the positioning piece 140 ″ is in contact with one plane, the holding means mounting portion 110 ″ can be maintained in a state where a predetermined interval is provided with respect to the one plane of the structural material B ″. As a result, the fixing metal fitting 1 "according to this reference example can be reliably held in a constant posture without changing the posture of the cable C held by the holding means 20".

(Fourth reference example)
The fixing bracket according to the fourth reference example is different from the fixing bracket 1 '' according to the third reference example in that it does not include a positioning piece, but other configurations are the same as those of the third reference example. Accordingly, in the following description, the same name and the same reference numeral are assigned to the same or corresponding configuration as the fixing bracket 1 '' of the third reference example.

  As shown in FIG. 14, the fixing metal fitting 1 ″ according to the present reference example includes a metal fitting body 10 ″ attached to the structural material B ″ and holding means 20 ″ configured to hold the cable C. ing.

  The metal fitting body 10 '' is attached on the basis of two surfaces forming a right angle among the four surfaces constituting the outer peripheral surface of the square steel pipe, so as to face one of the two surfaces, A plate-shaped holding means mounting portion 110 '' to which the holding means 20 '' is attached and screwed to one surface via screw members S '', D '' and a holding means mounting portion 110 '' Extending from one end to the one surface side and disposed along the other surface of the two surfaces, around the axis of the screw members S ″, D ″ in the holding means mounting portion 110 ″ And a regulating piece 130 ″ for regulating rotation.

  The holding means mounting portion 110 ″ is formed in a band plate shape, and is provided with a screw insertion hole 101 ″ for inserting the screw members S ″ and D ″ at a predetermined position. The holding means 20 '' includes a U bolt 200 '', a nut 210 '', and a cable receiving member 220 '' as in the above embodiments, and the holding means mounting portion 110 '' includes a U bolt. Two pairs of insertion holes 111a '' and 111b '' are formed through both ends of 200 ''. Also in this reference example, in order to arrange a plurality of cables C at intervals in the longitudinal direction of the holding means mounting portion 110 '', a plurality of holding means 20 '' are provided side by side. In order to narrow the interval, adjacent holding means 20 ″ are offset in the axial direction of the cable C to be held, and the extending direction of the holding means mounting portion 110 ″ (extending direction from the regulating piece 130 ″). Are disposed so as to partially overlap each other. Accordingly, the holding means 20 ″ arranged in the lateral direction can be arranged as close as possible, so that the distance between the cables C can be narrowed, that is, the length of the holding means attaching portion 110 ″ can be shortened.

  Similarly to the third reference example, the fixing bracket 1 '' according to the present reference example is attached by screw members S '' and D '' that are screwed into the structural material B ''. However, as described above, since the holding means mounting portion 110 ″ is disposed with a space from one plane of the structural material B ″, the screw member inserted through the screw insertion hole 101 ″. The holding member mounting portion 110 '' is sandwiched between the heads of S ″ and D ″ and the nuts N ″ that are screwed to the screw members S ″ and D ″ to form the screw member D ″. A screw is inserted into the material B ″, or a spacer is interposed between the holding means mounting portion 110 ″ and the structural material B ″, and the holding means mounting portion 110 and the spacer are screw members S ″ and D ″. The above-described arrangement is obtained by screwing the structural material B ″ via the screw. In the figure, as in the third reference example, the nut N ″ fixed to one plane of the structural material B ″ is also used as a spacer, and the screw inserted into the screw insertion hole 101 ″. The members S ″ and D ″ are screwed onto the nut N ″. When the structural material B ″ is a pillar material, a step bolt S ″ screwed to the pillar material is used as a screw member, and the holding means attaching portion 110 ″ is one of the structural material B ″. Are arranged opposite to each other with a space therebetween.

  The fixing bracket 1 '' according to the present reference example is fixed to the structural material B '' by a single screw member S '', D '' as described above. Since 'is arranged along the other plane perpendicular to one plane of the structural material B ″, the rotation of the screw members S ″, D ″ around the axis is reliably restricted. . Accordingly, the cable C held by the holding unit 20 ″ can be reliably held in a fixed posture without changing the posture of the fixture 1 ″ according to the present reference example.

  In addition, the cable fixing bracket for steel towers of this invention is not limited to said each embodiment, Of course, it can add various changes within the range which does not deviate from the summary of this invention.

  In each of the above-described embodiments, the structural material B for constructing the steel tower A has been described as adopting the equilateral mountain steel, but is not limited thereto. For example, the structural material B for constructing the steel tower A is shown in FIG. A grooved steel (C-shaped steel) shown in b) or an H-shaped steel shown in FIG. 2 (c) may be adopted. Even if it does in this way, the two strip | belt-shaped board parts Pa and Pb which extend in one direction as a length are connected in the short direction orthogonal to a longitudinal direction like channel steel or H-shaped steel like an angle steel. Since the two strip-shaped plate portions Pa and Pb have a bent portion P having an L-shaped cross section having a right angle or a substantially right angle, FIG. 15 (a), FIG. 15 (b), FIG. 16 (a) and FIG. As shown in b), by attaching the base portion 100 to one of the strip-shaped plate portions Pa, the cable C and the holding means 20 of the two strip-shaped plate portions Pa and Pb that form a right angle or a substantially right angle as in the above embodiments. The projection area X is located in the overlapping area Z that overlaps. That is, the grooved steel and the H-shaped steel have a part (bent part) P having an L-shaped cross section as a part of the structure, and define a groove part in which the part (bent part P) is formed in the longitudinal direction. Therefore, by attaching the base portion 100 to one of the belt-like plate portions Pa, the holding means 20 is positioned in the groove portion, that is, in the overlapping region Z, and does not hinder the operator's operation.

  In each of the above embodiments, the base part 100 and the holding means attaching part 110 are formed by bending a single plate material. However, the present invention is not limited to this. For example, the base part 100 and the holding part are held. Each of the means attaching portions 110 may be formed of an independent plate material, and the holding means attaching portions 110 may be fixed to the base portion 100 by welding or the like. Alternatively, the base unit 100 may be formed of a plate material, while the holding unit mounting unit 110 may be formed of a bar, and the holding unit mounting unit 110 may be fixed to the base unit 100 by welding or the like. That is, as long as the holding means mounting portion 110 extends from the base portion 100, the forms of the base portion 100 and the holding means 110 can be variously changed.

  And when the base part 100 and the holding means attaching part 110 are comprised by a separate member as mentioned above, the holding means attaching part 110 does not necessarily need to extend from the end of the base part 100, and the base part 100 is a strip | belt-shaped board. The holding means attaching part 110 may be extended from a midway position of the base part 100 in a state where it can be screwed to the part Pa. In this case, the extension amount of the holding means mounting portion 110 is set so that the holding means mounting portion 110 is located in the overlapping area Z or the triangular area in the overlapping area Z with reference to the extending position of the holding means mounting section 110. And an angle with respect to the base portion 100 may be set. The holding means attaching portion 110 does not need to be entirely located in the overlapping area Z, but at least the cable C and the holding means 20 that may hinder the operation of the operator may be located in the overlapping area Z. Needless to say, it is preferable that the whole or most of the holding means attaching portion 110 is located in the overlapping region Z as in the above embodiments.

  Further, in each of the embodiments described above, the holding means mounting portion 110 is formed to extend straight from the base portion 100. However, the present invention is not limited to this. For example, the holding means mounting portion 110 is configured to be curved or bent. Also good. Even in this case, it is a matter of course that the holding means 20 is positioned in the overlapping region Z.

  In each of the above-described embodiments, the base end of the holding means mounting portion 110 is positioned on the other end side of the strip-shaped plate portion Pa as the mounting manner of the fixing bracket 1, but is not limited to this. Of course, the holding means mounting portion 110 may be mounted so as to be positioned on the boundary side between the two strip-shaped plate portions Pa and Pb. However, it goes without saying that the holding means mounting portion 110 is formed so that at least the holding means 20 is positioned in the overlapping region Z.

  In each of the above embodiments, the U-shaped arc portion of the U bolt 200 constituting the holding means 20 is covered with the elastic material 202. However, the invention is not limited thereto. For example, the U-shaped arc portion is a steel material. As such, it may be uncoated. Further, although the cable receiving material 220 is provided in the holding means 20, the present invention is not limited to this. For example, the cable C is held by sandwiching the cable C between the U bolt 200 and the holding means mounting portion 110. It may be.

  In each of the embodiments described above, the holding means 20 is constituted by the U-bolt 200. However, the holding means 20 is not limited to this. For example, as shown in FIG. 17 (a), a pair of holdings that hold the cable C from both sides. The holding means 20 is constituted by the bodies 250a and 250b, the holding means 20 is constituted by a hook bolt 260 capable of hooking the cable C as shown in FIG. 17B, or as shown in FIG. The holding means 20 may be configured with an eyebolt 270 through which the cable C can be inserted. As long as the cable C can be held, various holding means 20 may be employed. However, it goes without saying that the portion of the holding means 20 that holds the cable C is positioned in the overlapping region Z.

  In each of the above embodiments, the cable C is directly held by the holding means 20, but the present invention is not limited to this. For example, as shown in FIG. 18, the wiring pipe 30 is held by the holding means 20, The cable C may be inserted into the wiring pipe 30. That is, the holding means 20 is not limited to the one that directly holds the cable C, and may be one that holds the cable C indirectly via the wiring pipe 30 or the like.

  In each of the above embodiments, two or more holding means 20 are arranged side by side with a space therebetween. For example, as shown in FIG. 19, adjacent holding means 20 are offset in the axial direction of the cable C to be held, In addition, the holding means mounting portion 110 may be arranged so that a part thereof overlaps in the extending direction. If it does in this way, the space | interval of the adjacent holding | maintenance means 20 can be narrowed, and it can be set as the arrangement | positioning to which the some cable C was made to approach. Moreover, since the space | interval of the holding means 20 can be shortened, the size of the holding means attaching part 110 can be made small.

  In each of the above embodiments, the holding means mounting portion 110 is formed of a flat plate, and the nut 210 screwed to the end of the U bolt 200 inserted through the holding means is brought into contact with the plane of the holding means mounting portion 110. As shown in FIG. 20, a counterbore 215 is formed on the outer surface of the holding means mounting portion 110 (the surface of the holding means mounting portion 110 on the outer side of the base portion 100 and the holding means mounting portion 110). The end and nut 210 may be housed within the counterbore 215. In this way, when the holding means 20 is constituted by the U bolt 200 or the like, the holding means attaching portion 110 can be positioned in the overlapping region Z without worrying about the nut 210 or the end of the U bolt 200. .

  In the second to third embodiments, the metal fitting body 10 (the base portion 100 and the holding device attaching portion 110) is dimensioned so that not only the holding device 20 but also the entire metal fitting body 10 is located in the overlapping region Z. However, the present invention is not limited to this, and it is only necessary that at least the portion of the holding means 20 that holds the cable C is positioned in the overlapping region Z as in the first embodiment. Thus, if the holding means 20 is in the overlapping area Z, it is possible to suppress the movement of the operator from being hindered even if the metal fitting body 10 is partially outside the overlapping area Z.

The schematic front view of the steel tower used as the attachment object of the cable fixing bracket for steel towers concerning each embodiment of this invention is shown. It is sectional drawing for demonstrating the form of the shaped steel as a structural material which constructs a steel tower, (a) shows sectional drawing of angle iron, (b) shows sectional drawing of channel steel, (C) shows a cross-sectional view of the H-section steel. It is explanatory drawing of the step bolt attached to the pillar material (section steel) of a steel tower, Comprising: A part of step bolt of the state attached to the pillar material is shown. It is explanatory drawing of the cable fixing bracket for steel towers which concerns on 1st embodiment of this invention, Comprising: (a) shows sectional drawing of the cable fixing metal fitting for towers, (b) is I arrow directional view of (a). Indicates. It is explanatory drawing of the holding means of the cable fixing bracket for steel towers of 1st embodiment, Comprising: The partial expanded sectional view of a holding means attachment part and a holding means is shown. BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of the usage aspect of the cable fixing bracket for steel towers of 1st embodiment, (a) shows the cross-sectional view of the state which attached the cable fixing metal fitting for steel towers for the pillar material, (b) The longitudinal cross-sectional view of the state which attached the cable fixing bracket for steel towers for a beam material or a brace material is shown. It is explanatory drawing of the cable fixing bracket for steel towers concerning 2nd embodiment of this invention, Comprising: (a) shows the cross-sectional view of the state which attached the cable fixing metal fitting for steel towers to the column material, (b) These show the longitudinal cross-sectional view of the state which attached the cable fixing bracket for steel towers to a beam material or a brace material. It is explanatory drawing of the cable fixing bracket for steel towers concerning 3rd embodiment of this invention, Comprising: (a) shows sectional drawing of the cable fixing metal fitting for towers, (b) is II arrow directional view of (a). Indicates. It is explanatory drawing of the usage condition of the cable fixing bracket for steel towers of 3rd embodiment, (a) shows the cross-sectional view of the state which attached the cable fixing bracket for steel towers for the pillar material, (b) The longitudinal cross-sectional view of the state which attached the cable fixing bracket for steel towers for a beam material or a brace material is shown. It is explanatory drawing of the cable fixing bracket for steel towers which concerns on 4th embodiment of this invention, Comprising: (a) shows the cross-sectional view of the state which attached the cable fixing metal fittings for steel towers to the column material, (b) These show the longitudinal cross-sectional view of the state which attached the cable fixing bracket for steel towers to a beam material or a brace material. Sectional drawing of the cable fixing bracket for steel towers which concerns on a 1st reference example is shown. Sectional drawing of the cable fixing bracket for steel towers which concerns on a 2nd reference example is shown. Sectional drawing of the cable fixing bracket for steel towers concerning a 3rd reference example is shown. Sectional drawing of the cable fixing bracket for steel towers which concerns on a 4th reference example is shown. It is explanatory drawing of the cable fixing metal fitting for towers which concerns on the steel tower which adopted the shape steel as the structural material for another embodiment of this invention, Comprising: (a) is a holding means attachment part on the other strip | belt-shaped board part. Sectional drawing of the attachment state of the solid metal fitting provided with the metal fitting main body formed so that it may incline with respect is shown, (b) is formed so that a holding means attachment part may be substantially parallel to the other strip | belt-shaped board part. Sectional drawing of the attachment state of the solid metal fitting provided with the metal fitting main body was shown. It is explanatory drawing of the cable fixing metal fitting for steel towers concerning another embodiment of this invention which makes object the steel tower which employ | adopted H-shaped steel for structural materials, Comprising: (a) is an internal angle of a base part and a holding means attachment part Shows a cross-sectional view of a mounting state of a solid metal fitting provided with a metal fitting body formed so that the holding means mounting portion is inclined with respect to the other belt-like plate portion, and (b) shows a base portion and Sectional drawing of the attachment state of the solid metal fitting provided with the metal fitting main body in which the internal angle with a holding means attachment part makes a right angle and this holding means attachment part was formed so that it was substantially parallel with respect to the other strip | belt-shaped board part is shown. It is explanatory drawing of the cable fixing metal fitting (holding means) for steel towers concerning another embodiment of this invention, Comprising: (a) shows sectional drawing containing the holding means provided with a pair of clamping body which clamps a cable. (B) is sectional drawing including the holding means comprised with the hook bolt which can hook a cable, (c) is sectional drawing containing the holding means comprised with the eyebolt which can insert a cable Indicates. It is explanatory drawing at the time of hold | maintaining a cable indirectly by the holding means in each embodiment of this invention, Comprising: The state which hold | maintained this cable indirectly by inserting a cable in the piping for wiring hold | maintained at the holding means A partial sectional view is shown. It is explanatory drawing of the fixing means which concerns on another embodiment of this invention, Comprising: The schematic arrangement | positioning figure of the holding means at the time of closing the space | interval of several holding means is shown. It is explanatory drawing of the fixing means which concerns on another embodiment of this invention, Comprising: The partial enlarged sectional view of the fixing means which formed the counterbore in the holding means attachment part and accommodated the nut for fixing a holding means in the counterbore Indicates. It is explanatory drawing of the conventional fixing bracket which fixes a cable with respect to the steel tower in which the shape steel was employ | adopted as structural steel, Comprising: (a) is a perspective view of the fixing bracket which clamped the cable with a pair of clamping body (B) shows the perspective view of the fixing metal fitting which was made to pinch | interpose a strip-shaped plate part of a shaped steel with one pressing screw and the opposing piece of a metal fitting main body.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Steel tower cable fixing metal fitting (fixing metal fitting), 10 ... Metal fitting main body, 20 ... Holding means, 30 ... Piping for wiring, 100 ... Base part, 101 ... Screw insertion hole, 110 ... Holding means attaching part, 111a, 111b ... Insertion hole, 120 ... reinforcing rib, 200 ... U bolt, 202 ... elastic material, 210 ... nut, 215 ... counterbore, 220 ... cable receiving material, 221 ... concave, 222a, 222b ... hole, 250a, 250b ... clamping body, 260 ... hook bolt, 270 ... eye bolt, A ... steel tower, B ... structural material (section steel), Ba ... pillar material (structural material: shape steel), Bb ... beam material (structural material: shape steel), Bc ... brace material (Structural material: Shaped steel), C ... Cable, D ... Bolt (screw member), H ... Hole, La ... Virtual line, Lb ... Virtual line, Lc ... Virtual line, Ma ... Aviation injury light (equipment), Mb ... Accident section detection device (equipment , N ... nut, P ... bent portion, Pa, Pb ... strip-shaped plate portion, S ... Step bolts, Sa ... step, Sb ... male screw, X, Y ... projection area, Z ... overlap region

Claims (8)

  Constructs a structural steel having a bent portion in which one end in a short direction perpendicular to the longitudinal direction of two strip-shaped plate portions extending in one direction is connected to each other and the two strip-shaped plate portions form a right angle or a substantially right angle A steel tower cable fixing bracket for arranging a cable along the structural material with respect to the steel tower constructed as a structural material, the metal fitting body attached to the structural material, and the cable directly or indirectly Holding means configured to be able to hold, and the metal fitting body includes a base portion that is screwed along one of the belt-like plate portions, and a holding means attachment that extends from the base portion and to which the holding means is attached. The holding means mounting portion has a projection area of the band-shaped plate part in the direction perpendicular to the plane with respect to one band-shaped plate part and a projection area of the band-shaped plate part in the direction perpendicular to the plane with respect to the other band-shaped plate part. Hands holding in overlapping overlap area Tower cable fixing bracket, characterized in that it is formed so as to position the.   The tower cable fixing bracket according to claim 1, wherein the holding means mounting portion is formed so as to be positioned in the overlapping region together with the holding means.   The holding means attaching portion is located together with the holding means in a triangular region surrounded by two strip-shaped plate portions and a linear imaginary line connecting the other ends of the two strip-shaped plate portions in the overlapping region. The cable fixing bracket for steel towers according to claim 1 formed as described above.   The said base part is formed in plate shape, and the said holding means attachment part is extended for the steel tower in any one of the Claims 1 thru | or 3 extended straightly in the direction which cross | intersects the said base part. Cable fixing bracket.   In the metal fitting body, a metal plate is bent so as to form a ridgeline, whereby a base portion is formed on one end side with the ridgeline as a boundary and a holding means mounting portion is formed on the other end side. The cable fixing bracket for steel towers according to any one of claims 1 to 4.   The holding means includes a U bolt whose both ends are inserted into the holding means mounting portion, and nuts that are screwed to both ends of the U bolt, and tightens a nut screwed to the end of the U bolt. The steel tower cable fixing bracket according to any one of claims 1 to 5, configured to hold a cable disposed between the U bolt and the holding means mounting portion.   The steel cable fixing bracket for a tower according to claim 6, wherein at least a U-shaped arc portion of the U bolt is covered with an elastic material.   The holding means further includes a cable receiving material fixed to the holding means mounting portion, and the cable receiving material has a concave line for running along the cable facing the inner peripheral side of the U-shaped arc portion of the U-bolt. The cable fixing bracket for steel towers of Claim 6 or 7 currently formed.

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