JPH11141085A - Support of pipe handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support easily and firmly fixable to a handrail of round pipe to facilitate the construction of a handrail and improve the supporting stability. SOLUTION: A support metal fitting 7 is non-circularly fitted onto a connecting bolt 1 for engagingly locking and holding a movable locking piece 4 to the inner surface of a pipe handrail 14, and the support metal fitting 7 is fastened and fixed by a nut 6. The support is formed of the above elements, and a plug 8 in the rear part of the support metal fitting 7 is inserted to the socket of a receiving tool 13 and screwed thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe handrail support which is effective for facilitating construction of a handrail and improving support stability.

[0002]

2. Description of the Related Art There are handrails provided on stairs, verandas and the like using round pipes. This round pipe handrail is to be attached to the tip of the column by welding or supported at both ends by a support with a socket, and the intermediate part is supported by a support with a ring or a support with a seat that fits outside the pipe. Many.

[0003]

A handrail to be welded and attached to a support post takes a lot of time for construction. In addition, since there are materials that cannot be welded, the materials to be used are restricted, and furthermore, it is necessary to assemble them at a factory and carry them to the site, so that the transportation becomes large. On the other hand, what is supported by the support with a ring,
There is play between the ring of the support and the pipe handrail, and the handrail is easily rattled.On the other hand, the support with the support with the support is difficult to increase the fixing strength because the support is screwed to the pipe handrail, and both support stability Dissatisfaction remains.

An object of the present invention is to solve these problems.

[0005]

The pipe handrail support of the present invention, which is provided as a solution to the above-mentioned problems, has a clevis portion provided at the tip and a movable member is provided in a groove of the clevis portion by a pin crossing the groove. A connecting bolt rotatably mounted with the stop piece shifted from the fulcrum to one end from the fulcrum, a nut screwed to the rear end side of the bolt, and a plug inserted and fixed to the socket of the receiver at the rear, A support fitting having a shaft hole for allowing the connection bolt to penetrate and fit non-circularly into the shaft center portion, and having a tip machined and used so as to be in close contact with the outer surface of the pipe handrail; After inserting it into the pipe handrail from the small hole made in the pipe handrail, rotate it in a direction parallel to the pipe handrail and lock it on the inner surface of the pipe handrail, and connect the support bracket to the connecting bolt held by the pipe handrail. Outside fitting It is intended to be fixed to the pipe handrail by tightening the support bracket with the nut.

It is preferable that the plug of the support fitting has an annular groove for engaging a stop bolt and a marker groove for positioning in the circumferential direction on the outer periphery.

[0007]

According to the support device of the present invention, a small hole is formed in a pipe handrail, a connecting bolt is locked therein, a support fitting is externally fitted to the connecting bolt, and is fixed with a nut. Since the plug is inserted and the support bracket is fixed to the holder, the support bracket can be easily and firmly attached to the pipe handrail, and the support bracket can be easily attached to the receiver, making the installation of the handrail simple. In addition, the fixation becomes firm.

Further, since welding is not performed, any material can be used for the support bracket and the pipe handrail without being restricted by the material. Furthermore, if this support is used, the handrail can be disassembled and carried to the site, which is advantageous in terms of transportation.

Here, the fixing of the support bracket is performed, for example, by
When the handrail is a round pipe, the end surface of the support bracket is in close contact with the outer surface of the pipe handrail, and at the same time, the movable locking piece is in parallel with the pipe axis so that there is no floating part on the inner surface of the pipe Most stable when you are. However, since the movable locking piece is inside the pipe handrail, the posture cannot be confirmed from the outside. Therefore, in the present invention, the connecting bolt and the support fitting are fitted non-circularly so that the relative positions of the two are fixed. Accordingly, when the support fitting is correctly brought into close contact with the pipe handrail, the movable locking piece also has a correct posture. In the case where the two are circularly fitted, the relative position is shifted and the fixing becomes unstable, but such a problem does not occur at all with the support bracket of the present invention.

[0010]

FIG. 1 shows an embodiment of a support according to the present invention. This support includes a connecting bolt 1, a nut 6 screwed to the connecting bolt 1, and a support fitting 7 formed of an aluminum casting or the like.

The connecting bolt 1 has a structure in which a clevis portion 2 having a split groove on the square axis is provided at the tip, and a movable locking piece 4 is attached to the groove 3 of the clevis portion. The clevis portion 2 is provided with a pin 5 crossing the groove 3, and the pin 5 rotatably supports a portion of the movable locking piece 4 that is biased from the center to one end. Therefore, the movable locking piece 4 always tries to maintain the vertical position due to the shift of the center of gravity, and when the connecting bolt 1 is horizontal, it is naturally oriented at right angles to the bolt axis.

The support fitting 7 has a plug 8 at the rear, a flange 9 at the outer periphery of the root of the plug 8, and a shaft hole 10 through which the connecting bolt 1 passes at the shaft center. Shaft hole 10
Is a square hole, into which the square axis of the clevis part 2 fits, so that the connecting bolt 1 and the support fitting 7 are prevented from rotating with each other. Reference numeral 11 denotes an annular groove provided on the outer periphery of the plug 8, and reference numeral 12 denotes a marker groove used as a position reference when processing the front end surface of the support fitting 7 with the outer surface of the pipe handrail.

The plug 8 is inserted into a socket at the upper end of the receiving member 13 (see FIG. 2). 2 is a pipe support standing upright on a floor surface, steps of a stair, or the like, but is not limited thereto. It may be attached to the wall sideways. Further, the insertion amount of the plug 8 into the socket can be regulated by using a member other than the illustrated flange 9.

Reference numeral 14 in FIGS. 2 and 3 denotes a handrail made of a round pipe. A small hole 15 is made in the pipe handrail 14, and the clevis portion 2 of the connecting bolt is inserted into the small hole 15. The work is performed with the movable locking piece 4 parallel to the bolt axis as shown in FIG. Thereafter, when the posture of the bolt is changed and the movable locking piece 4 is rotated by its own weight by 90 °, the locking piece 4 is locked on the inner surface of the pipe handrail 14 and the connecting bolt 1 is retained. Then, a support metal fitting 7 whose tip end surface has been formed into a curved surface in accordance with the curvature of the outer periphery of the pipe handrail 14 in advance is fitted to the outer periphery of the connecting bolt 1, and the nut 6 is screwed into the connecting bolt 1 and tightened.

The support fitting 7 is most stably installed at a position where the distal end surface is in close contact with the outer peripheral surface of the pipe handrail 14, and assumes a posture that naturally maintains that position. Also, due to the restraining action of the support fitting 7, the movable bolt 4 of the connecting bolt 1 is also oriented in parallel with the pipe axis. In this state, the nut 6 is tightened and the support fitting 7 is firmly fixed.

Thereafter, the plug 8 is inserted into the socket of the receiving member 13 as shown in FIGS. 2 and 3, and is prevented from coming off by the set screw 16 which engages with the annular groove 11, thereby completing the construction of the handrail. Here, the plug 8 is prevented from coming off by the set screw 16. However, a so-called one-touch lock type in which a cam surface is formed on the outer periphery and the socket of the square hole is relatively rotated to press the cam surface against the inner surface of the socket. If a plug is used, the workability of handrail assembly is improved.

When the example support is mounted on the inclined handrail, as shown in FIG. 4, the tip of the support bracket is cut in accordance with the inclination angle of the handrail, and the cut surface matches the outer peripheral curvature of the pipe. To make a curved surface. As described above, since the mounting angle can be freely determined, the degree of freedom in setting the inclination angle of the handrail is not impaired.

The support fitting of the present invention exhibits a particularly great effect when the pipe handrail is a round pipe. However, pipes other than the round pipe (elliptical, polygonal cross section, rectangular cross section, etc.)
It can also be used effectively for supporting handrails.

[0019]

As described above, the support of the present invention can be easily, accurately and firmly attached to a pipe handrail, and furthermore, the handrail can be assembled on site, so that the handrail can be easily constructed. , The support stability of the handrail is improved, and the material conveyance is facilitated.

A ring externally fitted to a weld or a handrail;
Since there are no receiving seats to be screwed, the appearance is also refreshing.

Further, since there is no welded portion, a pipe handrail,
It is also possible to form the support fitting from a material that is difficult to weld, such as copper, aluminum, or titanium.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a support according to the present invention.

FIG. 2 is a sectional side view showing a use state of the support tool of FIG. 1;

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a side view showing an example of attachment to an inclined handrail.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connecting bolt 2 Clevis part 3 Groove 4 Movable locking piece 5 Pin 6 Nut 7 Support bracket 8 Plug 9 Flange 10 Shaft hole 11 Annular groove 12 Marker groove 13 Receiver 14 Pipe handrail 15 Small hole 16 Set screw

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroyuki Kajimoto 8-4-6 Honcho, Toyonaka-shi, Osaka (72) Inventor Eiji Sumida 3-6-11, Nishiyamadai, Osaka-Sayama-shi, Osaka (72) Inventor Sumida Atsuji 3-6-1 Nishiyamadai, Osaka Sayama City, Osaka Prefecture

Claims (2)

[Claims] 1. A coupling bolt provided with a clevis portion at a tip thereof and rotatably mounted in a groove of the clevis portion with a pin crossing the groove so that a movable locking piece is shifted from a fulcrum to one end side with a center of gravity. A nut to be screwed to the rear end side of the bolt, and a plug to be inserted and fixed in the socket of the receiver at the rear, and a shaft hole for allowing the connection bolt to penetrate through the connection bolt at the shaft center and fitting non-circularly, It consists of a support bracket used by processing the tip into a shape that closely adheres to the outer surface of the pipe handrail,
After inserting the movable locking piece into the pipe handrail from the small hole opened in the pipe handrail, rotate it in a direction parallel to the pipe handrail to lock it on the inner surface of the pipe handrail, and hold the support bracket to the pipe handrail A pipe handrail support tool which is fitted to a connection bolt, and which is fixed to the pipe handrail by tightening the support fitting with the nut. 2. The pipe handrail support according to claim 1, wherein an annular groove for engaging a stop bolt and a marker groove for positioning in the circumferential direction are provided on the outer periphery of the plug of the support fitting.