JPH0667734U - Fence beam pipe mounting structure - Google Patents

Abstract

(57) [Abstract] [Purpose] Attach the beam pipe to the support column at an arbitrary angle and stably. Also, get a good aesthetic. [Structure] The beam washer 5 and the hemispherical joint 6 are fixed to the column 1 with joint bolts 10. The beam washer 5 has a substantially spherical inner peripheral wall surface 3 a in the circular recess 3. The hemisphere joint 6 has a hemispherical surface portion 6a. The outer bracket 11 has a cylindrical shape and has a spherical outer peripheral surface 11a that contacts the inner peripheral wall surface 3a at the end. The inner bracket 14 has a cylindrical structure in which upper and lower divided pieces 12 and 13 are joined by a screw 15, and has a spherical inner peripheral surface 14a that holds the hemispherical surface portion 6a of the hemispherical joint 6 at the end. The beam pipe 2 is fitted into the tubular gap between the outer bracket 11 and the inner bracket 14 and fixed with screws 16. Since the contact is made by the spherical portion, the brackets 11 and 14 and hence the beam pipe 2 can take an arbitrary angle and are stably fixed. With the presence of the beam washer 5,
Since there is no gap between the bracket 14 and the column 1, it is aesthetically pleasing.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a beam pipe mounting structure for mounting a beam pipe to a column in a fence for sloping land, which mainly has a beam pipe attached to the column via a bracket.

[0002]

[Prior art]

 In fences for sloping ground that have beam pipes (cross rails using pipes) that are attached to stanchions via brackets, the beam pipes must be installed parallel to the sloping ground, so any angle corresponding to the slope can be used. It is desirable to be able to attach to the column at an angle of. As a beam pipe mounting structure of this type, the applicant previously devised the one shown in FIG. 7 and filed a utility model registration application (see Japanese Patent Application No. 4-77237). In this beam pipe mounting structure, the nut portion 24 of a ball joint 26 having a spherical portion 25, a nut portion 24 and a collar portion 33 in the middle thereof is screwed into a joint bolt 23 penetrating the hole 21a of the column 21. Then, the ball joint 26 is fixed to the column 21 by tightening, and the spherical portion 25 of the ball joint 26 is held and held by the holding portion 28 having the spherical inner surface of the split bracket 27 which is connected with the screw 30. Is housed in the bracket cover 32, the end of the beam pipe 22 is fitted in the tubular gap between the bracket cover 32 and the bracket 27, and the beam pipe connecting screw 31 is attached at the mounting portion 29 of the bracket 27. It is a fixed structure.

The bracket cover 32 has a bottomed cylindrical shape having a bottom portion 32a having a hole 32b formed in the center thereof. The hole 32b of the bracket cover 32 and the flange portion 33 of the ball joint 26 have a hexagonal diameter when viewed from the left in FIG. 7, and the size of the hole 32b prevents the portion of the flange portion 33 from rotating. Is sized to engage with. The operation of attaching the ball joint 26 to the joint bolt 23 is performed with the split bracket 27 attached to the ball joint 26 and the bracket cover 32 covered. Reference numerals 34 and 36 are female thread portions with which the screw 30 or 31 is screwed, reference numerals 22a, 32c, 35 and 37 are holes through which the screw 30 or 31 is inserted, and reference numeral 32d is a hole into which a driver for rotating the screw 30 is inserted.

[0004]

[Problems to be solved by the device]

 According to the above-described beam pipe mounting structure, the beam pipe 22 can be mounted on the support column 21 while being arbitrarily tilted in accordance with the angle of the sloped ground. Further, since the bracket 27 is connected to the ball joint 26 by a surface contact with a spherical surface, the bracket 27 is stably connected. However, the rotation of the bracket cover 32 is prevented by fitting the hexagons between the hole 32b and the collar 33, and when the bracket cover 32 is slightly tilted, one edge of the hole 32b is disengaged from the collar 33. Therefore, the action of the detent may become insufficient. Further, it is not always easy to screw the nut portion 24 of the ball joint 26 onto the joint bolt 23 with the bracket cover 32 covered and tighten and fix. In addition, although the appearance is generally good, a gap is created between the bracket cover 32 and the support 21 and the nut portion 24, which is clearly seen as a joint member, is exposed in this gap. Improvement is desired.

The present invention has been made in view of the above circumstances, and the beam pipe can be stably connected to the supporting column at an arbitrary angle, and the beam pipe can be reliably prevented from rotating. It is an object of the present invention to provide a beam pipe mounting structure that is easy to operate for connecting pipes and that is aesthetically superior.

[0006]

[Means for Solving the Problems]

 The beam pipe mounting structure of the present invention which solves the above problem has a shallow circular recess whose inner peripheral wall surface forms a part of a substantially spherical surface, and a beam washer that contacts the column on the opposite side of this circular recess and a hemispherical surface. A hemispherical joint arranged at the center of the circular recess of the beam washer, a joint bolt penetrating the strut, the beam washer, and the hemispherical joint to clamp and fix the beam washer and the hemispherical joint to the strut, and a tubular shape. None An outer bracket that comes into contact with the inner peripheral wall of the circular recess of the beam washer on the outer peripheral surface of the tapered end on one end side, and the two split pieces are combined to form a cylindrical shape An inner bracket that holds the hemispherical portion of the hemispherical joint on the substantially spherical inner peripheral surface of the ball and a split piece joining means that joins two split pieces of the inner bracket , In a state of being fitted into the cylindrical gap between the outer bracket and an inner bracket beam pipe, characterized in that a beam pipe fixing means for fixing the beam pipe outside the bracket and inner bracket.

According to a second aspect of the present invention, the inner peripheral wall surface of the circular recess of the beam washer and the outer peripheral surface of the tapered recess of the outer bracket which are in contact with each other in the beam pipe mounting structure are fitted to each other in a vertical plane or a horizontal plane. It is characterized by forming a protruding shape and a concave groove.

[0008]

[Action]

 In the above structure, the outer bracket is constrained from moving closer to the strut by the beam washer, the inner bracket is constrained from moving away from the strut by the hemispherical joint, and the outer bracket, the inner bracket, and the beam pipe are integrally connected. Therefore, the beam pipe is fixed to the column. Since the beam washer and the outer bracket and the inner bracket and the hemispherical joint are in contact with each other in a substantially spherical portion, the beam pipe can take any angle in the vertical direction and the horizontal direction and is stable on the column. And then fixed.

In claim 2, since the concave groove or protrusion on the outer peripheral surface of the tapered portion of the outer bracket slides along the protrusion or concave groove on the inner peripheral wall surface of the circular recess of the beam washer, The bracket is only allowed to tilt in the direction along the ridge (vertical or horizontal), and is prevented from rotating around the bracket centerline.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. Fig. 1 is a cross-sectional front view showing the main part of a beam pipe mounting structure for a slope fence such as a road fence to be installed on a slope. Fig. 2 is a plan view of the beam pipe. Reference numeral 2 indicates a beam pipe which is a horizontal rail formed by a round pipe. This beam pipe mounting structure has a shallow circular concave portion 3 whose inner peripheral wall surface 3a forms a part of a substantially spherical surface, as shown in detail in FIGS. 3 (a), 3 (b) and 3 (c). The details are also shown in Fig. 4 (a), (b), and (c), and the beam washer 5 that contacts the support 1 with the arcuate curved surface 4 on the opposite side of the As described above, it has a hemispherical surface portion 6a and a cylindrical portion 6b, and a hole 6c for inserting a bolt is formed at the center, and the hemispherical joint 6 and the strut 1 arranged at the center portion of the circular concave portion 3 of the beam washer 5 are connected to each other. A joint bolt 10 for penetrating the through hole 1a, the hole 5a of the beam washer 5, and the hole 6c of the hemispherical joint 6 to fasten and fix the beam washer 5 and the hemispherical joint 6 to the column 1, and FIG. As shown in detail in (b), it has a cylindrical shape. The outer bracket 11 that contacts the inner peripheral wall surface 3a of the circular recess 3 of the beam washer 5 with the spherical outer peripheral surface 11a of the side tapered end, and FIGS. As shown in detail, the inner bracket 1 that holds the hemispherical surface portion 6a of the hemispherical joint 6 with the spherical inner peripheral surface 14a of the tapered end on one end side is formed by combining the two divided pieces 12 and 13. 4, a split piece joining screw (split piece joining means) 15 that joins the two split pieces 12 and 13 of the inner bracket 14, and the end of the beam pipe 2 between the outer bracket 11 and the inner bracket 14. It is provided with a beam pipe fixing screw (beam pipe fixing means) 16 for fixing the beam pipe 2 to the outer bracket 11 and the inner bracket 14 in a state of being fitted in the cylindrical gap.

Explaining the details of each of the above-mentioned parts further, protrusions 3b are formed on the inner peripheral wall surface 3a of the circular recessed portion 3 of the beam washer 5 at the upper and lower portions in the vertical plane, while the outer bracket A concave groove 11b is formed on the outer peripheral surface 11a of the tapered portion 11 so that the projection 3b can be slidably fitted in the vertical direction. Due to the fitting of the projection 3b and the concave groove 11b, only the outer bracket 11 is allowed to tilt in the vertical direction with respect to the beam washer 5, and the rotation about the bracket center line, that is, the rotation about the center line of the beam pipe 2 is prevented. To be prevented.

As shown in FIGS. 6A, 6B, and 6C, the inner bracket 14 has an outer diameter smaller than the inner diameter of the beam pipe 2 when the two divided pieces 12 and 13 are combined. And has a spherical inner peripheral surface 14a which fits the size of the hemispherical portion 6a of the hemispherical joint 6 in the vicinity of the end of the tapered portion. In addition, a protruding female thread portion 12a into which the divided piece coupling screw 15 is screwed, and a protruding female thread portion 12b into which the beam pipe fixing screw 16 is screwed are formed on the inner surface of the upper divided piece 12. However, the lower divided piece 13 has a hole 13a through which the divided piece connecting screw 15 is inserted so as to face the internal thread portion 12a, and a beam pipe fixing screw 16 is inserted through the hole 13b corresponding to the internal thread portion 12b. Is open. Further, the outer bracket 11 is provided with a hole 11c through which a driver for finally tightening the divided piece coupling screw 15 and a countersink 11d through which the beam pipe fixing screw 16 is inserted.

Next, a beam pipe mounting operation in the above beam pipe mounting structure will be described. First, the struts 1 are built at predetermined intervals on the slope where the fence for the slope is to be installed. A beam washer 5 is applied to the column 1 at the holes 11a on both sides that penetrate the column 1, a hemispherical joint 6 is attached to the center of the circular recess 3 of the beam washer 5, and a joint bolt 10 is attached to the hole 1a of the column 1. The beam washer 5 is inserted through the hole 5a and the hemispherical joint 6 through the hole 6c, and the washer 17 is interposed and the nut 18 is screwed and tightened to fix the beam washer 5 and the hemispherical joint 6 to the column 1. Reference numeral 10a indicates the head of the joint bolt 10. Then, the inner peripheral surface 14a of the upper and lower divided pieces 12, 13 of the inner bracket 14 divided into two is contacted with the hemispherical surface portion 6a of the hemispherical joint 6, and the divided piece connecting screw 15 is formed in the hole. The divided pieces 12 and 13 are integrally joined by screwing from 13a to the female thread portion 12a and tightening. The above operation is also performed on the support (not shown) on the opposite side of the fence span, and then the outer bracket is covered on the inner bracket 14, and both ends of the beam pipe 2 are attached to the outer bracket 11 and the inner bracket on the support 1 on both sides of the span. It is inserted into the tubular gap between the bracket 14 and the bracket 14. In this case, by pushing the beam pipe 2 deeply into one of the brackets 11 and 14, and then inserting it into the brackets 11 and 14 on the opposite side of the span, both ends of the beam pipe 2 are attached to the brackets 11 and 14 on both sides of the span. Can be fitted. At this time, the beam pipe 2 is parallel to the sloping ground, and the brackets 11 and 14 are also properly aligned with the angle of the sloping ground.

Next, the spherical outer peripheral surface 11 a at the tip of the tapered portion of the outer bracket 11 is applied to the inner peripheral wall surface 3 a of the circular recess 3 of the beam washer 5. At this time, the protrusion 3b on the inner peripheral wall surface 3a side of the beam washer 5 is fitted into the concave groove 11a of the outer bracket 11. Then, the countersunk hole 11d of the outer bracket 11, the long hole 2a formed at the end of the beam pipe 2 and the hole 13b of the inner bracket 14 are aligned, and the beam pipe fixing screw 16 is passed through the holes 11d, 2a, 13b. When tightened by screwing into the female thread 12b of the inner bracket 14, the beam pipe 2 is fixed to the outer bracket 11 and the inner bracket 14, and at the same time, the outer bracket 11 and the inner bracket 14 are fixed to the column 1, whereby the beam pipe 2 is fixed. Is fixed to the column 1. That is, the spherical outer peripheral surface 11a of the outer bracket 11 hits the inner peripheral wall surface 3a of the circular recess 3 of the beam washer 5 and is restrained from moving closer to the column 1, and the inner peripheral surface 14a of the inner bracket 14 is a hemispherical joint. The beam pipe 2 is fixed to the column 1 because the hemispherical portion 6a of 6 is restrained from moving away from the column 1 and the outer bracket 11, the inner bracket 14 and the beam pipe 2 are integrally connected. In this case, the beam washer 5 and the outer bracket 11, and the inner bracket 14 and the hemispherical joint 6 are all in contact with each other at the spherical portions (the inner peripheral wall surface 3a and the outer peripheral surface 11a, and the inner peripheral surface 14a and the hemispherical surface portion 6a). Therefore, the beam pipe 2 can take an arbitrary angle in the up-down direction and the left-right direction, and is stably fixed to the column 1. Further, by fitting the protrusions 3b of the inner peripheral wall surface 3a and the concave grooves 11b of the outer peripheral surface 11a, the outer bracket 11 is allowed only to tilt in the vertical direction, and is prevented from rotating around the center line.

It is to be noted that the divided piece connecting screw 15 of the inner bracket 14 may be finally tightened and fixed firmly from the hole 11c of the outer bracket 11, but when the hemispherical joint 6 is covered, the screw 15 is finally tightened. It can also be fixed. Further, a procedure may be considered in which the beam bracket 2 is fitted to the inner bracket 14 in a state in which the outer bracket 11 is covered over the tip portion of the beam pipe 2 first.

[0016]

[Effect of device]

 According to the present invention, the beam washer and the outer bracket, and the inner bracket and the hemispherical joint all come into contact with each other by the surface contact of the substantially spherical portion, so that the beam pipe can be adjusted to any angle vertically and horizontally. It can be taken and is stably fixed to the column.

Since the hemispherical joint can be attached to the column with joint bolts separately from the outer bracket, the hemispherical joint can be easily attached.

Since there is no gap between the outer bracket and the column due to the existence of the beam washer, and because this beam washer does not have a clearly visible appearance as a joint member, it is aesthetically pleasing.

According to the second aspect of the present invention, since the contact surface between the beam washer and the outer bracket has the protrusion and the groove in the vertical plane or in the horizontal plane which are fitted to each other, the circumference of the outer bracket and the inner bracket is reduced. Therefore, the beam pipe can be reliably stopped.

[Brief description of drawings]

FIG. 1 shows a beam pipe mounting structure for a fence according to an embodiment of the present invention, and is a front view showing a cross section of a main part of a mounting portion of a beam pipe to a column.

FIG. 2 is a plan view of a mounting portion of the beam pipe of FIG. 1 to a column.

3A and 3B show a beam washer in FIG. 1, and FIG. 3A is a front sectional view, FIG. 3B is a right side view, and FIG. 3C is a plan view.

4 shows the hemispherical joint in FIG. 1, where FIG. 4 (a) is a front view, FIG. 4 (b) is a left side view, and FIG. 4 (c).
Is a plan view.

5 shows the outer bracket in FIG. 1, where FIG. 5 (a) is a front sectional view and FIG. 5 (b) is a left side view.

6 shows the inner bracket in FIG. 1, FIG. 6 (a) is a plan view, FIG. 6 (b) is a front sectional view, and FIG. 6 (c) is a right side view.

FIG. 7 shows a conventional beam pipe mounting structure, and is a front view of a mounting portion of a beam pipe to a column.

[Explanation of symbols]

1 Support 1a Hole 2 Beam Pipe 2a Long Hole 3 Circular Recess 3a Inner Wall 3b Projection 5 Beam Washer 6 Hemispherical Joint 6a Hemispherical Part 10 Joint Bolt 11 Outer Bracket 11a Outer Surface 11b Concave Groove 12, 13 Split Piece 14 Inner bracket 14a Inner peripheral surface of tapered portion 15 Split piece connecting screw (split piece connecting means) 16 Beam pipe fixing screw (beam pipe fixing means) 18 Nut

Claims (2)

[Scope of utility model registration request] 1. A beam washer having a shallow circular recess whose inner wall surface forms a part of a substantially spherical surface, and a beam washer contacting a support on the opposite side of the circular recess, and a center of the circular recess of the beam washer having a hemispherical surface. Part, a hemispherical joint arranged in the section, a joint bolt penetrating the strut, the beam washer, and the hemispherical joint to fasten and fix the beam washer and the hemispherical joint to the strut; An outer bracket that is in contact with the inner wall surface of the circular recess of the beam washer on the spherical outer surface, and a cylindrical shape with the two split pieces combined to form a generally spherical inner surface of the tapered end on one end side. An inner bracket that holds the hemispherical portion of the hemispherical joint, a split piece connecting means that connects two split pieces of the inner bracket, and a beam pipe to the outer bracket and the inner bracket. A beam pipe mounting structure for a fence, comprising beam pipe fixing means for fixing the beam pipe to an outer bracket and an inner bracket in a state of being fitted in a tubular gap between the racket and the racket. 2. A protrusion and a groove are formed on the inner peripheral wall surface of the circular recess of the beam washer and the outer peripheral surface of the tapered end of the outer bracket, which are in contact with each other, and are fitted to each other in a vertical plane or a horizontal plane. Claim 1 characterized in that
Beam pipe mounting structure for the fence described.