JPH04306355A - Clamp metal for temporary material - Google Patents

Abstract

PURPOSE:To keep excellent strength without playing of clamp metals suitable for connecting various kinds of temporary materials. CONSTITUTION:Cylinders 9 are rotatably thrust through each hole 5b formed in one side 5a of the base of clampers 21 and 22, and the basal ends of the cylinders 9 are fixed to one side 5a of the clamper 21. An annular coupler 10 is provided to the tip of the cylinder 9. A coupling ring 12 to couple with the coupler 10 at an adequate position in the circumferential direction is fixed to the peripheral side of the hole 5b of one side 5a of the clamper 22 facing the coupler 10. When a temporary material 3 is clamped by the clamper 22, the tip of a coupler 11 consisting of the cylinder 9 and the coupler 10 is pressed toward the basal end of the cylinder 9 by one end of the material 3 to connect the coupler 10 with the ring 12.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a temporary material fastening fitting for connecting temporary materials such as pipes to each other in order to construct scaffolding at a construction site, and in particular, it relates to a temporary material fastening fitting for connecting temporary materials such as pipes to each other, and in particular, to adjust the intersecting angle of temporary materials. This eliminates the inconvenience of having to prepare multiple types depending on the application, makes it possible to use one type to fasten all kinds of temporary materials, and eliminates the so-called looseness even with so-called flexible clamps that can be rotated freely. The present invention relates to a temporary material fastening fitting that can maintain excellent strength.

0002

[Prior Art] Conventionally, temporary materials such as pipes called single pipes and pipes formed in an approximately U-shape called biti have been tightly connected to each other for constructing scaffolding at construction sites. As a temporary material fastening fitting called a clamp, two fastening members are oriented at 90 degrees in order to fasten orthogonal temporary materials.
There are two types of clamps: orthogonal clamps fixed at different times, flexible clamps in which two fastening members are rotatably engaged to fasten braces, etc., and the inner diameter of the fastening members is 48.6 mm outside.
There are two types: one for a single pipe that is adapted to a pipe with an outer diameter of 42.7 mm, one for a bitty that is adapted for a bitty with an outer diameter of 42.7 mm, and one for the same diameter where the inner diameter of the tightening member is dedicated to a single pipe or a bitty. There are two types of pipes with different diameters that can be adapted to both single pipe and bitty pipes.

0003

[Problem to be Solved by the Invention] However, since there are many types of conventional temporary material fastening fittings as mentioned above, it requires a great deal of effort to separately order and inventory manage various types of temporary material fastening fittings. However, it is extremely difficult to sort and store various types of temporary material fastening fittings in high and narrow spaces such as scaffolding at construction sites, so the desired type of temporary material fastening fittings must be ordered each time. The work efficiency of constructing the scaffolding was poor, and otherwise the orthogonal parts were sometimes forced to be tied together using flexible clamps, which had lower strength than the orthogonal clamps, which was a work that had safety problems. In addition, in a flexible clamp for tightening braces, etc., the connecting member that connects two tightening members is a cylindrical body that is caulked by loosely fitting a hole cut out on one side of each. Since each of the two fastening members has a gap with respect to the cylindrical body, even when the temporary member is fastened, the two fastening members will cause a slight movement called rattling due to the gap, thereby making sure that the It was not possible to maintain a proper engagement state. Therefore, in the present invention,
It eliminates the inconvenience caused by the existence of multiple types of conventional temporary material fastening fittings, and makes it possible to deal with the fastening of all kinds of temporary materials with just one type. It is an object of the present invention to provide a temporary material fastening fitting that can maintain excellent strength without causing slight movement between them.

0004

[Means for Solving the Problems] In order to achieve the above-mentioned object, the temporary material fastening fitting of the present invention has a substantially semicircular recess formed therein to engage with a temporary material such as a pipe used in construction work. a base, a bolt having a nut pivotally mounted horizontally to one end of a recess in the base, and a bolt rotatable to the other end of the recess in the base; In a temporary material fastening fitting formed by rotatably connecting a plurality of fastening members each including a clamping piece that is pivotally connected and engages with the bolt and nut to sandwich the temporary material, the plurality of fastening members are mutually connected. In between, the proximal end of the cylindrical body is fixed to one side of the base of one of the fastening members, and this cylindrical body is inserted into a hole cut out in one side of the base of the other fastening member, and the tip thereof is inserted. An engagement member provided with an annular engagement member, and an engagement member fixed to the hole periphery of the base in the other fastening member facing the annular engagement member, and arranged in an appropriate circumferential direction with respect to the annular engagement member. A connecting member consisting of an engaging ring that engages at a position is disposed, and when the other fastening member fastens the temporary material, one end of the temporary material presses the tip of the engaging member toward the proximal end of the cylindrical body. The annular engaging member and the engaging ring engage with each other, and when the other fastening member leaves the temporary material, the annular engaging member and the engaging ring separate from each other. A base having a substantially semicircular recess formed therein to engage with the temporary material, and a nut pivotally attached to one end of the recess of the base so as to be freely rotatable in the horizontal direction. A plurality of fastening members, each consisting of a bolt and a clamping piece rotatably pivoted to the other end of the concave portion of the base and engaging with the bolt and nut to clamp the temporary material, are rotatably provided. In the temporary material fastening fitting formed by connecting the plurality of fastening members, the proximal end of the cylinder is fixed to one surface of the base of one fastening member, and this cylinder is connected to the other fastening member. An engaging member is provided that is inserted into a hole cut out in one surface of the base and has an annular engaging member disposed at its tip, and a base of the other fastening member that faces the annular engaging member. An engaging portion that engages with the annular engaging member at an appropriate position in the circumferential direction is formed around the hole of the stand, and when the other fastening member fastens the temporary material, one end of the temporary material engages with the said engaging member. The annular engaging member and the engaging portion engage by pressing the tip of the member toward the base end of the cylinder, and when the other fastening member leaves the temporary material, the annular engaging member and the engaging portion engage with each other. A base having a configuration in which a semi-circular concave portion is cut out to engage with a temporary material such as a pipe used for construction work, and which rotates horizontally relative to one end of the concave portion of the base. A bolt equipped with a freely pivotally mounted nut,
A plurality of clamping members rotatably connected to the other end of the concave portion of the base and comprising a clamping piece that engages with the bolt and nut to clamp the temporary material. In the temporary material fastening fitting, there is a hole between the plurality of fastening members, a base end of which is fixed to one surface of the base of one fastening member, and a notch formed in one surface of the base of the other fastening member. A first cylindrical body is formed with a slanted guide portion on its circumferential surface and moves in the axial direction by engaging with and rotating the slanted guide portion of the first cylindrical body. a second cylindrical body disposed with an engaging member; and a second cylindrical body fixed to the hole periphery of the base of the other fastening member facing the annular engaging member and arranged in a circumferential direction with respect to the annular engaging member. A connecting member consisting of an engagement ring that engages at an appropriate position is provided, and the second cylinder is rotated and moved toward the proximal end of the first cylinder, so that the first fastening is achieved. One surface of the base of the member is brought into contact with one surface of the base of another fastening member, and the annular engagement member and the engagement ring are engaged, and when the other fastening member fastens the temporary material, the temporary material One end presses the second cylindrical body toward the proximal end of the first cylindrical body to maintain the engaged state between the annular engagement member and the engagement ring.

[0005]

[Embodiment] Fig. 1 is a front view showing a first embodiment of the temporary material fastening fitting of the present invention, Figs. 2 and 3 are sectional views showing a connecting member in the temporary material fastening fitting of the present invention, and Fig. 4 is a front view showing a first embodiment of the temporary material fastening fitting of the present invention. FIG. 5 is a perspective view showing an annular engagement member in the connection member of the invention. FIG. 5 is a perspective view showing an engagement ring in the connection member of the invention.

1 in the figure is a temporary material fastening fitting of the present invention,
Two fastening members 21 and 22 that sandwich and engage a temporary material 3 such as a single pipe or a bitty are rotatably connected by a connecting member 4. The fastening members 21 and 22 each include a base 5 having a substantially semicircular recess, and a nut 6 pivotally mounted to one end of the recess of the base 5 so as to be rotatable in the horizontal direction. It consists of a bolt 7 and a clamping piece 8 which is pivotally mounted horizontally to the other end of the recessed part of the base 5 and engages with the bolt 7 and nut 6 to clamp the temporary material 3, The base 5
A hole 5b having an inner diameter of about 21 mm is cut out in one side 5a of the clamp, similar to the conventional flexible clamp.

The connecting member 4 is attached to the tip of a cylinder 9 having a flange 9a at the base end and having an outer circumferential diameter of about 20 mm.
A donut-shaped annular engagement member 10 having valley-shaped recesses 10a (height approximately 1.5 mm) protruding at every 0 degrees is attached to the recess 1.
The engaging member 11 is fixed by welding or the like with the 0a facing toward the flange 9a, and the mountain-shaped protrusion 12a (about 1.5 mm deep) that engages with the recess 10a of the annular engaging member 10 is the same. It consists of an engagement ring 12 formed in a circumferential shape.

As a method of assembling the fastening members 21 and 22 and the connecting member 4, first, the flange 9a of the cylinder 9 is
is inserted into the hole 5b of the one side 5a of the fastening member 21 and welded to the inner circumference of the hole 5b, and then the engagement ring 12 is inserted into the inner circumference of the hole 5b of the one side 5a of the fastening member 22. Further, the cylindrical body 8 is inserted through the hole 5b of the fastening member 22, and the protrusion 10a of the annular engagement member 10 is inserted into the engagement ring 12.
It is welded to the tip of the cylindrical body 9 while facing toward the recess 12a.

[0009]The gap between one side 5a of the binding member 21 and one side 5a of the binding member 22 is approximately 2 mm when the convex portion 10a of the annular engaging member 10 and the concave portion 12a of the engaging ring 12 are engaged. By doing so, one side 5 of the fastening member 21
By bringing the convex portion 10a and the one side surface 5a of the fastening member 22 into close contact with each other, the convex portion 10a and the concave portion 12a can be easily separated. In this state where the protrusion 10a and the recess 12a are separated, the protrusion 10a of the annular engagement member 10 and the recess 12a of the engagement ring 12 can be engaged with each other by shifting their angles by 30 degrees in 12 directions. can.

When the binding member 22 has tied the temporary material 3, one side 5a of the binding member 22 is biased in the direction of the arrow 13 when viewed from the axial center of the temporary material 3, and the annular engagement member 10 A part of the circumferential surface of the temporary material 3 presses the tip of the cylindrical body 9 to which the annular engagement member 10 is fixed, and urges the engagement member 11 in the direction of the arrow 14. As a result, the annular engagement member The convex part 10a of 10 and the concave part 12a of the engagement ring 12 engage with each other. When the convex portion 10a and the concave portion 12a engage with each other, the axial rotation of the connecting member 4 is restricted between the fastening member 21 to which the annular engaging member 10 is fixed and the fastening member 22 to which the engaging ring 12 is fixed. Thus, the desired and appropriate inclined state of 30 degrees is maintained without the binding member 21 and the binding member 22 moving slightly relative to each other.

6 and 7 show a second embodiment of the connecting member 4 of the present invention, FIG. 6 shows the connecting member 4 in an engaged state, and FIG. 7 shows the connecting member 4 in a disengaged state. Instead of fixing the engagement ring 12 on the inner circumference of the hole 5b on the one side 5a of the fastening member 22, a recess 5c is formed on the inner circumference of the hole 5b on the one side 5a, for example, by pressing. It is formed integrally by extrusion using a machine. The engagement member 11 is formed by integrally forming the cylindrical body 9 and the annular engagement member 10, and has a convex portion 11a that engages with the concave portion 5c at the end thereof. According to this second embodiment, the number of parts can be significantly reduced compared to the first embodiment.

FIG. 8 shows a third embodiment of the connecting member 4 of the present invention, and FIG. 9 shows a first embodiment of the connecting member 4 of the present invention.
FIG. 10 shows a second cylinder in the connecting member 4 of the present invention. The configurations of the fastening members 21 and 22 except for the connecting member 4 are the same as those in the first embodiment described above, so the explanation will be omitted.

[0013] The connecting member 4 has a flange 15a formed at its base end, and diagonal holes 15b, 15b penetrating through opposing positions on the circumferential surface.
A first cylindrical body 15 having an outer circumferential diameter of about 20 mm is formed with a notch, and one part is rotatably inserted into the inner periphery of the first cylindrical body 15, and holes are formed at opposite positions on the circumferential surface. 16a,
16a, and a substantially donut-shaped annular engaging member 16c, which has valley-shaped recesses 16b (about 1.5 mm in height) protruding from the other part at intervals of 30 degrees in the circumferential direction, is disposed in the shape of a flange. The second cylindrical body 16 is fitted into two holes 16a, 16a in the second cylindrical body 16 with its tip protruding, and the protruding tip portion is inserted into the diagonal hole of the first cylindrical body 15. 15b, 15
An engagement in which a guide pin 17 with a length of about 19 mm positioned at point b and a mountain-shaped protrusion 12a (about 1.5 mm in depth) that engages with the recess 16a of the annular engagement member 16 are also formed in a circumferential shape. It consists of a ring 12.

Similarly to the first embodiment, the flange 15a of the first cylindrical body 15 is inserted into the hole 5b of the one side surface 5a of the base 5 in the fastening member 21, and is inserted into the hole 5b on the inner surface of the hole 5b. Then, the engagement ring 12 is welded to the inner circumference of the hole 5b on one side 5a of the fastening member 22.

This temporary material fastening fitting 1 has a second cylindrical body 16
When the guide pin 17 is rotated counterclockwise, the tip of the guide pin 17 is inserted into the diagonal hole 15b on the circumferential surface of the first cylindrical body 15, as shown in FIG.
, 15b, the second cylindrical body 16 moves in the direction of arrow 13, and a gap of approximately 2 mm is created between one side 5a of the binding member 21 and one side 5a of the binding member 22, and the convex portion 16a
and the recess 12a can be freely separated.

Furthermore, when the second cylinder 16 is rotated clockwise, the second cylinder 16 moves in the direction of the arrow 14, and the convex part 16a and the concave part 12a engage with each other, and the fastening member 2
1 and one side 5a of the fastening member 22 are brought into close contact with each other. Then, one side 5a of the binding member 21 and the binding member 2
Once the one side 5a of the second cylindrical body 16 is in close contact with the other side 5a, unless a counterclockwise rotational force is applied to the second cylindrical body 16, the one side 5a
There is no gap between them. In this manner, the desired angle between the binding member 21 and the binding member 22 can be set in advance before the temporary material 3 is tied together, making the binding work even easier.

Further, when the fastening members 21 and 22 fasten the temporary material 3, a part of the circumferential surface of the temporary material 3 presses the distal end portion of the engaging member 11 and urges it in the direction of the arrow 14. As in the first embodiment, the fastening members 21, 22 and the connecting member 4 are firmly engaged with each other without slight movement, and although there is no problem in terms of strength, one part of the fastening member 21, which occurred in the first embodiment, is improved. There is no gap between the side surface 5a and the one side surface 5a of the fastening member 22, which provides dimensional compatibility with other temporary material fastening fittings, and provides an appearance that allows the user to recognize the secure fastening state. .

In the three embodiments described above, the engagement between the convex portions 10a, 11a and the concave portions 12a, 5c is in the shape of a mountain and the shape of a valley, and at intervals of about 30 degrees, but in the axial direction Of course, the shape is not limited to a mountain shape or a valley shape as long as the rotation of the shape is restricted, and the angle can be freely set to a desired angle.

[0019]

As described in detail above, according to the temporary material fastening fitting of the present invention, the base end of the cylinder is fixed to one surface of the base of one fastening member between a plurality of fastening members. An engaging member in which the cylinder body is inserted into a hole cut out in one side of the base of another fastening member and an annular engaging member is disposed at the tip thereof, and a member opposite to the annular engaging member. In the fastening member, a connecting member consisting of an annular engaging member and an engaging ring that engages at an appropriate position in the circumferential direction is fixed to the periphery of the hole in the base, and the other fastening member is connected to the temporary material. When the temporary material is tightened, one end of the temporary material presses the tip of the engagement member toward the proximal end of the cylindrical body, causing the annular engagement member and the engagement ring to engage, and when the other fastening member separates the temporary material. By adopting a structure in which the annular engagement member and the engagement ring are detachable, multiple types are available depending on the application, such as orthogonal types and flexible types, and each type can be ordered and inventoried separately, just like conventional temporary material fastening fittings. By making it possible to use one type of material to fasten all kinds of temporary materials without requiring a great deal of effort, the work efficiency of scaffolding construction can be greatly improved and highly reliable fastening work can be performed. be. In addition, not only when perpendicular temporary members are fastened together, but also when temporary members that are inclined to each other are fastened together as in a conventional flexible clamp, the fastening members are securely engaged with the temporary members without any movement. Therefore, it is possible to exhibit excellent strength no matter what angle the clamp is tightened, without deteriorating in strength unlike conventional flexible clamps.

Further, between the plurality of fastening members, the proximal end of one fastening member is fixed to one side of the base, and a hole cut out in one face of the base of the other fastening member is inserted. A first cylindrical body having an inclined guide portion formed on its circumferential surface, which moves in the axial direction by engaging and rotating with the inclined guide portion of the first cylindrical body, and has an annular engagement member disposed at its tip. A second cylindrical body provided therein, and a second cylindrical body that is fixed to the hole periphery of the base in another fastening member that faces the annular engagement member and engages with the annular engagement member at an appropriate position in the circumferential direction. A connecting member consisting of a coupling ring is provided, and the second cylindrical body is rotated and moved toward the proximal end of the first cylindrical body, thereby connecting one surface of the base of the first tying member to the other cylindrical body. When the annular engagement member and the engagement ring are brought into contact with one surface of the base of the member, and the other fastening member fastens the temporary material, one end of the temporary material connects the second cylinder to the first cylinder. By maintaining the occlusal state of the annular engagement member and the engagement ring in the direction of the proximal end of the body, one type of temporary material can be used to fasten all types of temporary materials, making it easier to construct scaffolds. It is possible to perform highly reliable tying work that greatly improves work efficiency and exhibits excellent strength, and it is also possible to set the desired angle between the tying members in advance before tying the temporary materials. This makes the tying work easier.

[Brief explanation of drawings]

FIG. 1 is a front view showing a temporary material fastening fitting of the present invention.

FIG. 2 is a sectional view showing the interlocking state of the connecting members in the first embodiment of the temporary material fastening fitting of the present invention.

FIG. 3 is a sectional view showing a disengaged state of the connecting member in the first embodiment of the temporary material fastening fitting of the present invention.

FIG. 4 is a perspective view showing an engagement ring in the temporary material fastening fitting of the present invention.

FIG. 5 is a perspective view showing an annular engagement member in the temporary material fastening fitting of the present invention.

FIG. 6 is a cross-sectional view showing the interlocking state of the connecting members in the second embodiment of the temporary material fastening fitting of the present invention.

FIG. 7 is a sectional view showing a disengaged state of a connecting member in a second embodiment of the temporary material fastening fitting of the present invention.

FIG. 8 is a perspective view showing a third embodiment of the connecting member of the temporary material fastening fitting of the present invention.

FIG. 9 is a front view showing a first cylindrical body in a third embodiment of the present invention.

FIG. 10 is a perspective view showing a second cylindrical body in a third embodiment of the present invention.

[Explanation of symbols]

1 Temporary material fastening fittings 21, 22 Fastening member 3 Temporary materials 4 Connecting member 5 Base 5a　One side 5b Hole 6 Nut 7 bolt 8 Clamping piece 9 Cylindrical body 10 Annular engagement member 10a Recessed part 11 Engagement member 12 Engagement ring 12a Convex part 15 First cylinder 15b Diagonal hole 16 Second cylinder 16b Recessed part 17 Guide pin

Claims (3)

[Claims] Claim 1: A base formed by cutting out a substantially semicircular recess that engages with temporary materials such as pipes used in construction work, which is rotatable in the horizontal direction with respect to one end of the recess of the base. a bolt having a nut pivotally connected to the base; a clamping piece rotatably pivotally connected to the other end of the recess of the base and engaging with the bolt and nut to clamp the temporary material; In a temporary material fastening fitting formed by rotatably connecting a plurality of fastening members, the base end of the cylindrical body is attached to one surface of the base of one fastening member between the plural fastening members. An engaging member in which the fixed cylindrical body is inserted into a hole cut out in one surface of the base of another fastening member and an annular engaging member is disposed at the tip thereof, and an engaging member that faces oppositely to the annular engaging member. A connecting member consisting of an engagement ring that is fixed to the periphery of the hole in the base of the other fastening member and engages with the annular engaging member at an appropriate position in the circumferential direction is disposed, When the fastening member fastens the temporary material, one end of the temporary material presses the distal end of the engaging member toward the proximal end of the cylindrical body, causing the annular engaging member and the engagement ring to engage, and the other fastening member A temporary material fastening fixture characterized in that the annular engagement member and the engagement ring are separated when the member is separated from the temporary material. [Claim 2] A base formed by cutting out a substantially semicircular recess that engages with temporary materials such as pipes used in construction work, which is rotatable in the horizontal direction with respect to one end of the recess of the base. a bolt having a nut pivotally connected to the base; a clamping piece rotatably pivotally connected to the other end of the recess of the base and engaging with the bolt and nut to clamp the temporary material; In a temporary material fastening fitting formed by rotatably connecting a plurality of fastening members, the base end of the cylindrical body is attached to one surface of the base of one fastening member between the plural fastening members. The fixed cylinder is inserted into a hole cut out in one surface of the base of another fastening member, and an engaging member is provided with an annular engaging member disposed at its tip, and the annular engaging member is disposed at the tip thereof. around the hole of the base in the other fastening member facing the member,
An engaging part is formed that engages the annular engaging member at an appropriate position in the circumferential direction, and when the other fastening member fastens the temporary material, one end of the temporary material connects the tip of the engaging member to the base of the cylinder. The annular engaging member and the engaging portion engage with each other by pressing in the direction of the end, and when the other fastening member separates from the temporary material, the annular engaging member and the engaging portion separate. Temporary material fastening fittings. [Claim 3] A base formed by cutting out a substantially semicircular recess that engages with temporary materials such as pipes used in construction work, which is rotatable in the horizontal direction with respect to one end of the recess of the base. a bolt having a nut pivotally connected to the base; a clamping piece rotatably pivotally connected to the other end of the recess of the base and engaging with the bolt and nut to clamp the temporary material; In the temporary material fastening fitting formed by rotatably connecting a plurality of fastening members, the base end portion of one fastening member is fixed to one surface of the base between the plurality of fastening members. A first cylindrical body that is inserted through a hole cut out in one surface of the base of another fastening member and has an inclined guide portion formed on its circumferential surface;
A second cylindrical body that moves in the axial direction by engaging and rotating the inclined guide portion of the first cylindrical body, and has an annular engaging member disposed at its tip, and a second cylindrical body that is moved relative to the annular engaging member. A connecting member consisting of an engaging ring that is fixed to the hole periphery of the base of the other fastening member facing the other connecting member and engages with the annular engaging member at an appropriate position in the circumferential direction, By rotating the second cylindrical body and moving it toward the proximal end of the first cylindrical body, one surface of the base of the first fastening member and one surface of the base of the other fastening member are brought into contact. When the annular engagement member and the engagement ring are engaged with each other, and the other fastening member fastens the temporary material, one end of the temporary material presses the second cylindrical body toward the proximal end of the first cylindrical body. A temporary material fastening fixture, wherein the annular engagement member and the engagement ring are held in an engaged state.