JPH09221943A - Beam-pipe mounting construction of fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To promote work efficiency in case of execution to obtain construction without having any shortcoming in strength in joint positions of beam-pipes. SOLUTION: A bracket 23 is mounted to a support 21 with a mounting bolt 30 through an interval member 26. The bracket 23 is formed of a holding hardware 24 and a cover hardware 25. The holding hardware 24 is formed of a circular mounting section 27 and a semi-circular cylindrical semi-cylinder section. A spherical back 26b of the interval member 26 is brought into contact with a spherical contact surface 27a in the semi-cylinder section of the holding hardware 24 in a slidable manner, and the angle adjustment of the bracket 23 can be made. Interlocking projections 28b and 25c are provided to the semi-cylinder section of the holding hardware and cover hardware 25. A beam-pipe 22 is connected to the bracket 23 by fitting the interlocking projections 28b and 25c into interlocking holes 22a and 22b of the beam pipe. The holding hardware 24 and cover hardware 25 are formed together as a unit by inserting a joint bolt 29 from the holding hardware 24 side to screw into a projected nut section 25b on the cover hardware 25 side to fasten. Since the projected nut section 25b is used only for a joint position between the holding hardware and cover hardware, impact applied to the beam pipe 22 is not made to act on the joint position, and it is not regarded as shortcomings in strength.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam pipe mounting structure for mounting an end portion of a beam pipe on a fence to a side surface of a support via a bracket so that an angle of the beam pipe can be adjusted.

[0002]

2. Description of the Related Art Conventionally, there is a beam pipe mounting structure in which the mounting angle of a beam pipe to a column can be adjusted as shown in FIG. 6 (Japanese Patent Application No. 4-72153). In this beam pipe mounting structure, a space member 2 having a convex spherical back surface 2a is applied to a column 1, and a bracket 3 having a concave spherical contact surface 3a slidable in contact with the spherical back surface 2a is mounted. The bracket 3 is fastened and fixed to the column 1 by means of mounting bolts 4 and nuts 5, and the end portion of the beam pipe 6 is covered with the beam pipe support portion 3b of this bracket 3 having an arcuate section (an arcuate section viewed from the right side of FIG. 6). A structure in which the outer circumference of the pipe 6 is covered with a decorative pipe 7, and countersunk screws 8 inserted through the holes 7a formed in the decorative pipe 7 and the beam pipe 6 are screwed into the screw holes 3c provided in the beam pipe supporting portion 3b of the bracket 3 for tightening. Is.

Further, as shown in FIG. 7, a spacer 12 having a concave spherical back surface 12a is applied to the column 11, and a convex spherical contact which is slidable by contacting the concave spherical back surface 12a. A pipe material 13 having a surface 13a and divided into a main body portion 13b and a lid portion 13c is attached to a mounting bolt 14 and a nut 1.
5, a projection nut portion 13d which also serves as a pin for locking the beam pipe is integrally formed on the inner surface of the lid portion 13c of the pipe member 13, and the projection nut portion 13d is the upper surface of the beam pipe 16. The end portion of the beam pipe 16 is arranged in the pipe material 13 so as to be fitted into the hole 16a formed on the side, and the pipe material 13 and the beam pipe 13 are provided on the lower surface side.
There is also a beam pipe mounting structure in which the tip end of the coupling bolt 17 inserted from the holes 13c and 16b formed on the lower surface side of the is screwed into the protruding nut portion 13d on the lid portion 13c side of the pipe material 13 for tightening (Actual Publication No. 5-49822). reference).

[0004]

The beam pipe mounting structure shown in FIG. 6 allows a large angle adjustment amount, and the angle adjusting operation is easy. The bracket 3 is almost covered with the decorative pipe 7, so that the external appearance is improved. Although there are features such as goodness, before the beam pipe 6 is covered on the beam pipe supporting portion 3b of the bracket 3, the decorative pipe 7 is previously attached to the beam pipe 6 beforehand.
There is still some problem in workability at the time of construction due to the fact that it needs to be covered, and further improvement is desired.

The beam pipe mounting structure shown in FIG.
Since the protruding nut portion 13d on the inner surface of the lid portion 13c is fitted into the hole 16a formed in the beam pipe 16, there is a problem in the strength in the vicinity of the protruding nut portion 13d. That is, although it is difficult to secure sufficient strength in the structure of the projecting nut portion 13d in which a screw hole is formed in the center of the projecting portion, the projecting nut portion 13d does not provide sufficient strength.
Since 6 is directly locked, the projecting threaded portion 13d may directly receive an impact applied to the beam pipe 16 and a crack may occur in the vicinity thereof. Also, the hole 1 of the pipe material 13
3e and the hole 16b of the beam pipe 16 are aligned, the connecting bolt 17 is inserted from the lower surface side, and the lid portion 13c
The workability of screwing in the protruding nut portion 13d on the side is also poor.

The present invention has been made to solve the above-mentioned conventional drawbacks, and provides a fence beam pipe mounting structure which can further improve workability during construction and has no weak point in strength. With the goal.

[0007]

A beam pipe mounting structure for a fence according to the present invention which solves the above problems has a spherical back surface on the side opposite to the contact surface with the support, and contacts the support at the bolt insertion hole position of the support. And a mounting portion having a spherical contact surface slidably contacting the spherical back surface of the spacing member, a semi-cylindrical shape along the outer circumference of the beam pipe having a cylindrical cross section, and a semi-cylindrical shape having a bolt insertion hole. A bracket having a cylindrical portion integrally with it, and a coupling bolt formed into a substantially cylindrical shape so as to form a cylinder together with the semi-cylindrical portion of the bracket and having an inner surface inserted through a bolt insertion hole of the semi-cylindrical portion of the bracket. A support bracket having a projecting nut portion for screwing the tip end of the column and a mounting portion of the spacing member and the receiving bracket through the vertically long bolt insertion hole and the column bolt insertion hole of the column, respectively. Mounting to tighten and fix to And a belt, in either or both of the inner surface of the semi-cylindrical portion or lid fitting of the receiving metal,
The present invention is characterized in that a locking projection that fits into a locking hole formed in the beam pipe is provided.

[0008]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to the embodiment shown in FIG. FIG. 1 shows a beam pipe mounting structure according to an embodiment of the present invention, and is a cross-sectional view of the vicinity of a connecting portion of a beam pipe to a column. In FIG. 1, 21 is a column having a cylindrical cross section, 22 is a beam pipe,
A bracket 23 supports the beam pipe 22.
The bracket 23 is divided into a bracket 24 and a lid 25. 26 is a spacer that is interposed between the support column 21 and the bracket 23, and 30 is a spacer 23 and the spacer 2.
Reference numeral 31 denotes a mounting bolt for fixing 6 together with 6 to the column 21.

The spacing member 26, as shown in FIG.
It has a cylindrical contact surface 26a that contacts the outer circumference of the column 21 having a cylindrical cross section, and a spherical back surface 26b behind it, and a vertically long bolt insertion hole 26c is formed in the center, and the spherical back surface 26 is formed.
This is a structure in which vertical projections 26d are formed in the upper and lower portions of b.

As shown in FIGS. 2A, 2B, 2C and 2D, the bracket 24 of the bracket 23 has a circular mounting portion 27 for mounting it on the column 21, and a beam pipe. The shape is such that a semi-cylindrical portion 28 having a substantially semi-cylindrical shape along the outer circumference of 22 is integrally formed. The mounting portion 27 has a concave spherical contact surface 27a slidably contacting the convex spherical back surface 26b of the spacing member 26, and a spherical seat 27b as a bolt seat behind the concave spherical contact surface 27a. Bolt insertion hole 27c
Is open. A groove 27d into which the protrusion 26d on the spacing member 26 is fitted is provided at the upper and lower positions of the spherical contact surface 27a.
Is provided. Further, as shown in FIG. 1, a bolt insertion hole (counter hole) 28a through which the coupling bolt 29 is inserted is formed on the lower surface of the semi-cylindrical portion 28 of the receiving metal 24, and the beam pipe 22 is formed on the inner surface on the end side. A locking projection 28b fitted in the locking hole 22a is integrally provided. Further, on both edges of the semi-cylindrical portion 28, a positioning projection 25a formed on the lid metal fitting 25 side.
A concave portion 28c into which (see FIG. 3) is fitted is formed.

The lid member 25 of the bracket 23 is integrally formed with a projecting nut portion 25b on the inner surface of which a screw hole into which the tip portion of the connecting bolt 29 is screwed is formed. A locking projection 25c that fits into one locking hole 22b is formed. Also, the bracket 2
4, a step portion 27e for making the outer peripheral surface of the beam pipe 22 flush with the outer peripheral surface of the circular mounting portion 27 is formed on the upper semicircular peripheral edge of the mounting portion 28, and on the lid fitting 25 side. A step portion 25d corresponding to the step portion 27e is formed.

Next, a beam pipe mounting operation in the above beam pipe mounting structure will be described. Stanchion 21
After standing up at a predetermined interval, the spacers 26 are fitted to the spherical contact surfaces 27a of the mounting portions 27 of the receiving fittings 24 at the positions of the bolt insertion holes 21a on both sides of each pillar 21, respectively. The material 26 is applied to the column 21. Next, the mounting bolt 30 receives the bolt insertion hole 27 of the metal fitting 24.
c, through the bolt insertion hole 26c of the spacing member 26, and the bolt insertion hole 21a of the support column 21, the nut 31 is screwed into the mounting bolt 30, and lightly tightened with a spanner.

Next, the end portion of the beam pipe 22 is provided with an engaging hole 22a on the lower side thereof, and an engaging projection 28b of the metal fitting 24.
After being placed on the semi-cylindrical portion 28 of the receiving fitting 24 so that the beam pipe 22 is fitted into the receiving fitting 24, the beam pipe 22 is tilted together with the receiving fitting 24 at a predetermined inclination angle (indicated by a chain double-dashed line in the right side portion of FIG. 1). At this time, the mounting portion 27 of the receiving bracket 24
Slides on the spherical back surface 26b of the spacing member 26 and smoothly rotates in the vertical direction, so that a smooth angle adjustment can be performed. After setting the beam pipe 22 and the receiving fitting 24 at a predetermined angle, the nut 31 is strongly tightened to firmly fix the receiving fitting 24 to the column 21 side. Next, the lid fitting 2
5 is put on the metal fitting 24. At this time, the locking projection 25c of the lid 25 is fitted into the upper locking hole 22b formed in the beam pipe 22. Next, the coupling bolt 29 is inserted from the bolt insertion hole 28a of the receiving metal fitting 24, and the tip of the coupling bolt 29 is protruded nut portion 25b on the lid metal fitting 25 side.
When it is screwed onto and tightened, the receiving metal fitting 24 and the lid metal fitting 2
5, the beam pipe 22 is integrally coupled in a state of being locked by the locking projections 25c and 28b, and thus the beam pipe 22 is connected and fixed to the column 21 side at a predetermined angle.

Since the decorative pipe 7 as in the conventional example shown in FIG. 6 is not provided in the above-described beam pipe mounting work, workability during construction is further improved. Also, the lid fitting 2
The protruding nut portion 25b of No. 5 has a receiving metal fitting 24 and a lid metal fitting 25.
Since it is exclusively for coupling with (that is, does not also have a function of locking the beam pipe), when the coupling bolt 29 is inserted, the alignment with the beam pipe 22 is unnecessary, and the metal fitting 24
It is easy to perform an operation of integrally connecting the lid 25 and the lid fitting 25. Moreover, since the beam pipe 22 can be already locked to the receiving metal fitting 24 by the locking projection 28b before the connecting bolt 29 is inserted, an operation for adjusting the angle of the beam pipe 22 and the receiving metal fitting 24 or a nut. It is possible to smoothly perform the work such as tightening and fixing 31. The beam pipe 22 includes a coupling bolt 29 and a protruding nut portion 25b.
Therefore, the impact applied to the beam pipe 22 does not directly act on the coupling bolt 29 and the protruding nut portion 25b, and therefore, the vicinity of the protruding nut portion 25b is unlikely to be a weak point in terms of strength.

In the above embodiment, the spherical back surface 26b of the spacing member 26 and the spherical contact surface 27a of the mounting portion 27 of the receiving member 24, which are in contact with each other, are provided with the projections 26d and the grooves 27d which are fitted to each other. It can be rotated only up and down, but the beam pipe 2
If it is necessary to provide a horizontal angle on the 2
d and the groove 27d are not provided. Thereby, the beam pipe 22 can take an arbitrary angle with respect to the support column 21 not only in the vertical direction but also in the horizontal horizontal direction.

When the beam pipe does not need to be angled in the left-right direction, the sliding contact surface between the spacing member 26 and the mounting portion 27 of the receiving metal fitting 24 may be cylindrical. That is, as shown in FIG. 5, a cylindrical back surface 26'b is formed on the side opposite to the contact surface 26'a of the spacing member 26 'with the column 21, instead of the spherical back surface, while the mounting portion of the receiving metal fitting is formed. Alternatively, a cylindrical contact surface (not shown) may be formed instead of the spherical contact surface.

In the embodiment, the convex spherical back surface 26b on the spacing member 26 side and the concave spherical contact surface 27a on the mounting portion 27 side of the receiving metal fitting 24 are slidably fitted. ，
On the contrary, the concave spherical rear surface on the spacing member 26 side and the convex spherical contact surface on the mounting portion 27 side of the receiving metal 24 are slidably fitted (that is, in FIG. 7 of the conventional example). It may be configured such that the unevenness). Spacer 26 and bracket 24
The mutual fitting surface with the mounting portion 27 of the
Similarly, in the case of 6'b, the irregularities may be reversed.

In the embodiment, both the semi-cylindrical portion 28 of the receiving metal fitting 24 and the lid metal fitting 25 have locking projections 28b fitted into the locking holes 22a and 22b of the beam pipe 22, respectively.
Although 25c is provided, this locking projection may be provided on either the semi-cylindrical portion 28 side or the lid fitting 25 side.

[0019]

According to the present invention, since the decorative pipe as in the conventional example is not used, the workability during construction is further improved. Further, since the beam pipe is locked by engaging the locking hole formed at the end thereof with the locking projection integrally provided on the inner surface of the receiving metal fitting or the lid metal fitting, It is not necessary to adjust the position with the locking hole of the beam pipe when inserting the connecting bolt for connecting the brackets, and the operation of integrally connecting the receiving fitting and the lid fitting with the connecting bolt is easy.

Further, since the beam pipe can be locked to the receiving fitting before the connecting bolt is inserted,
The operation of adjusting the angle of the beam pipe and the bracket, or the tightening and fixing work of the nut can be performed smoothly.

Since the beam pipe is not directly locked to the connecting bolt or the protruding nut portion, the impact applied to the beam pipe does not directly act on the connecting bolt or the protruding nut portion, so that the vicinity of the protruding nut portion is strong. There is no danger of becoming a weak point.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a beam pipe mounting structure for a fence according to an embodiment of the present invention, which is a view in the vicinity of a connecting portion of a beam pipe to a column.

FIG. 2 is a view showing the receiving metal fitting in FIG. 1, where (a) is a vertical sectional view, (b) is a right side view, and (c) is a left side view.
(D) is a plan view.

FIG. 3 is a view showing the lid fitting in FIG. 1, in which (a) is a longitudinal sectional view, (b) is a right side view, and (c) is a plan view.

4A and 4B show the spacing member in FIG. 1, in which FIG. 4A is a plan view, FIG. 4B is a front view, and FIG. 4C is a right side view.

FIG. 5 is a perspective view of a spacer according to another embodiment.

FIG. 6 shows a conventional beam pipe mounting structure, and is a cross-sectional view of relevant parts near a connection portion of the beam pipe to a column.

FIG. 7 shows another conventional beam pipe mounting structure, and is a cross-sectional view of an essential part near a connecting portion of the beam pipe to a column.

[Explanation of symbols]

 21 Strut 21a Bolt insertion hole 22 Beam pipe 22a, 22b Locking hole 23 Bracket 24 Receiving metal fitting 25 Lid metal fitting 25b Projecting nut part 25c Locking projection 26, 26 'Spacing material 26b, 26'b Spherical back surface 26c, 26'c Bolt insertion hole 27 Mounting part 27a Spherical contact surface 27b Spherical seat 27c Bolt insertion hole 27d Groove 28 Semi-cylindrical part 28a Bolt insertion hole 28b Locking protrusion 30 Mounting bolt 31 Nut

Claims (2)

[Claims] 1. A spacing member that has a spherical back surface on the side opposite to the contact surface with the strut, contacts the strut at the bolt insertion hole position of the strut, and a spherical surface that slidably contacts the spherical back surface of the spacing member. With a semi-cylindrical part having a cylindrical contact surface and a substantially semi-cylindrical shape along the outer circumference of the beam pipe with a cylindrical cross section, and a semi-cylindrical part having a bolt insertion hole And a spacer having a substantially cylindrical shape, which has a protruding nut portion on its inner surface for screwing the tip portion of the coupling bolt inserted from the bolt insertion hole of the semi-cylindrical portion of the receiving metal fitting, and the spacing member. And the mounting part of the bracket
Each of them is provided with a vertically long bolt insertion hole and a mounting bolt that penetrates through the bolt insertion hole of the strut and is fastened and fixed to the strut. The beam pipe mounting structure for the fence, which is provided with a locking projection that fits into a locking hole formed in the beam pipe. 2. The beam pipe mounting structure according to claim 1, wherein the spherical back surface of the spacer is replaced by a cylindrical back surface, and the spherical contact surface of the mounting portion of the receiving metal fitting is replaced by a cylindrical contact surface. The feature is a beam pipe mounting structure for the fence.