JPH04120846U - Temporary handrail with stopper - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] To provide a handrail for temporary construction that can be easily assembled at a construction site without being affected by the space in which it will be temporarily constructed, and that has safety measures to prevent it from falling off. [Structure] The connecting part 4 of the other frame body 2 is slidably inserted into the connecting part 3 of one frame body 1, and the connecting part 3 of the one frame body 1 is provided with a screw hole for fixing and a small hole for locking. A fixing bolt 7 is screwed into the fixing screw hole, and a locking cylindrical body embedding hole is drilled in the connecting part 4 of the other frame body 2 at a position that matches the locking small hole. , a cylindrical body is fixed in the hole for embedding the locking cylindrical body, a coil spring is buried in the cylindrical body, and the locking cylindrical body is embeddably fixed against the elasticity of the coil spring. When the bodies 1 and 2 slide and the cylindrical locking body and the small hole for locking match, the cylindrical locking body protrudes and is inserted into the small hole for locking.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to handrails for construction, and in particular, it is easy to assemble at construction sites. The invention relates to a temporary extendable handrail used for temporary construction.

0002

[Prior art and its problems]

Conventionally, many types of temporary handrails for this type of construction work have been developed and used. However, for example, items used for construction sites, building renovations, etc. must be temporarily installed. Due to the different lengths of temporary construction, pipe-shaped pipes with different lengths are used. We have a wide variety of pipe-shaped parts that can be assembled with clamps, etc. to create a handrail. However, the end of the clamp and overlapped pipe protrudes from the connection. Wire ropes used for lifting and lowering construction equipment and work clothes may be scratched during work. This poses problems in workability and safety, and it also causes problems in terms of workability and safety. Some pipes are inserted through the pipe and fixed with rivets, etc., but the pipe falls out and falls downward. There have been many accidents caused by handrails, and there has been a long-awaited need for safe temporary handrails.

0003

[Purpose of invention]

In view of the above reasons, this invention allows for temporary construction without being affected by the space in which it is to be constructed. It is easy to assemble at the construction site, and has safety measures to prevent it from falling off. The purpose is to provide temporary handrails to the walkways and stairs.

0004

[Structure of the idea]

The structure of the present invention is such that a pair of framework bodies each having a substantially U-shaped outer edge are faced to each other. A temporary handrail that connects in a rectangular shape at the connection part provided on the upper and lower horizontal frames at the end of the assembly. The connection part of the other frame body is slidably inserted into the connection part of the one frame body, and the one side is connected to the other frame body. A fixing screw hole and a small locking hole are formed in the connection part of the frame body, and a fixing screw hole is formed with a fixing screw hole. Screw together the fixing bolt, and attach the locking bolt to the connection part of the other frame body at the position that matches the small locking hole. A hole for burying the locking cylindrical body is drilled, a cylindrical body is fixed in the hole for burying the locking cylindrical body, and A coil spring is embedded in the cylindrical body, and a locking cylinder is formed against the elasticity of the coil spring. It has a structure that allows the body to be immersed into the body.

[0005] The present invention that achieves the above object will be explained below with reference to drawings of embodiments.

[0006] Figure 1 is an overall front view of an embodiment of the temporary handrail with a stopper for stairs according to the present invention. Figure 2 is a front view of a temporary handrail to be used for passages etc. in the next example, and Figure 3 is a FIG. 2 is an enlarged explanatory diagram of a main part of the connection section.

[0007] This invention relates to handrails for construction, and in particular, it is easy to assemble at construction sites. This relates to extensible and retractable handrails for temporary construction, each with an approximately U-shaped outer edge A pair of framework bodies 1.2 of hollow tubes having a section are opposed to each other, and the ends of the respective framework bodies 1.2 are arranged to face each other. A temporary handrail that connects in a rectangular shape at the connecting parts 3 and 4 provided on the upper and lower horizontal frames of the section. The respective connecting portions 4 of the other framework body 2 are slid onto the respective connecting portions 3 of the one framework body 1. The hollow tube is movably inserted through the wall thickness of the hollow tube to each connecting portion 3 of the one frame body 1. A fixing screw hole 5 and a small locking hole 6 are respectively formed, and an arbitrary hole can be inserted into the fixing screw hole 5. Screw together the fixing bolt 7 that is pressed into position to fix it, and it matches the small locking hole 6. A locking cylindrical body embedding hole 8 is drilled in each connection part 4 of the other frame body 2 at the position where the locking cylinder body is to be buried. The cylindrical body 9 is fixed to the locking cylindrical body embedding hole 8 in the diametrical direction of the connecting part 4. and embed the coil spring 10 inside the cylindrical body 9. By fixing the locking cylindrical body 11 so that it can be buried against the elasticity of each The frame body 1.2 slides and the locking cylindrical body 11 and the locking small hole 6 match. Then, the locking cylindrical body 11 protrudes and is inserted into the locking small hole 6 and locked therein.

[0008] This invention relates to temporary handrails for construction work that can be easily assembled and disassembled at construction sites. This can be realized by manufacturing a pair of framework bodies 1.2 of several types with a certain length. It can be easily installed in almost any space such as a venue, etc., and the construction Once the work is completed, it can be removed and reused at the next site.

[0009] That is, in particular, the present invention is a temporary structure that can be easily assembled and used at a construction site. This relates to handrails, which are made by bending hollow tubes in a factory etc. and forming them into roughly U-shaped outsides. A pair of framework bodies 1.2 having edges are formed to reinforce the substantially U-shaped outer edges. Reinforcing materials are attached in the vertical direction as appropriate, and the upper and lower parts of the approximately U-shaped outer edges are opposed to each other. The end of the horizontal frame is used as a connecting part 3.4 to connect the pair of framework bodies 1.2 in a rectangular shape. It is.

0010 The connection part 3 of the horizontal frame of one framework body 2 of the pair of framework bodies 1.2 and the horizontal frame of the other framework body 2 In order to slidably insert the connecting portion 4 of the frame, the diameters of the respective connecting portions 3 and 4 are made large and small. is provided so that it can be inserted in a nested manner, and the large diameter of the frame body 1 is A screw hole 5 for fixing and a small hole 6 for locking are formed in the connecting part 3, respectively, to penetrate through the wall thickness of the hollow tube. Even if a screw is screwed into the thick part of the hollow tube, the fixing screw hole 5 will not penetrate through the hole. It is okay to weld a nut to the top surface with a through hole and use the screw. A fixing bolt 7 is screwed into the fixing screw hole 5.

[0011] It is engaged with the connection part 4 of the other frame body 2, which has a small diameter at a position that matches the small engagement hole 6. A hole 8 for embedding a cylindrical body for locking is bored, and a cylindrical body 9 is connected to the hole 8 for burying a cylindrical body for locking. A coil spring 10 is fixed in the diametrical direction of the connecting part 4 and embedded in the cylindrical body 9. , the locking cylindrical body 11 can be buried against the elasticity of the coil spring 10. The cylindrical body 9 is fixed to the locking cylindrical body embedding hole 8 by means such as welding. One end of the coil spring 10 is fixed and embedded in the cylindrical body 9. The locking cylindrical body 11 is embedded in the other end of the coil spring 10. Or it is fixed so that it can be protruded.

0012 Then, fix the fixing devices appropriately to the lower horizontal frame or the vertical frames on both sides of each framework body 1.2. This is a device that is worn and fixed at a construction site, etc.

[0013] Each of the framework bodies 1.2 constructed as described above is carried to the construction site, and a pair of framework bodies 1.2 are assembled. The connecting portion 3.4 of the body 1.2 is made to face each other and has a large diameter, while the connecting portion of the hollow tube of the framework body 1 Insert the other frame body 2 with a smaller diameter into 3 to fit the space of the temporary construction site. When the length is set appropriately and the fixing bolt 7 is screwed into the fixing screw hole 5, the fixing bolt 7 is screwed into the fixing screw hole 5. The tip of the bolt 7 is firmly pressed against the outer periphery of the hollow tube of the connection part 4 of the other frame body 2. It is fixed.

[0014] The temporary handrail with the stopper of this invention can be temporarily installed or dismantled. In such a case, insert the hole 8 for embedding the locking cylindrical body in the connection part 4 of the other frame body 2, which has a small diameter. The locking cylindrical body 11 embedded in the fixed cylindrical body 9 is connected to the coil spring 10. Although it is in a buried state against elasticity, the position of the locking cylindrical body 11 and the locking small hole 6 is When the positions match, the elasticity of the coil spring 10 is released and the locking cylindrical body 11 is locked. It protrudes into the small locking hole 6 and locks the respective framework bodies 1.2 to each other. Therefore, each framework body 1.2 will not be separated inadvertently, and therefore, it will not be accidentally removed. Accidents such as these can be prevented.

[0015]

[Effect of the idea]

The temporary handrail with a stopper of this invention can be used on flat aisles, etc., as well as on slopes. It is sufficient to form a staircase with a slight angle, and as mentioned above, a pair of stairs can be formed with a slight angle. The frame body not only allows for easy assembly at construction sites, but also allows easy assembly and removal. This prevents accidents such as accidental falls during work, and improves safety. It is a highly versatile, innovative, and highly practical idea.

[0016]

[Brief explanation of drawings]

FIG. 1 is an overall front view of an embodiment of a temporary handrail with a stopper for stairs according to the present invention.

FIG. 2 is a front view of a temporary handrail to be used for a passage or the like in the next embodiment.

FIG. 3 is an enlarged explanatory diagram of the main part of the connection section.

[Explanation of symbols]

1 One side framework 2 Other framework 3 Connection part of one frame body 4 Connection part of the other frame body 5 Fixing screw hole 6 Small hole for locking 7 Fixing bolt 8 Hole for embedding the cylindrical body for locking 9 Cylindrical body 10 Coil spring 11 Cylindrical body for locking

Claims (1)

[Scope of utility model registration request] Claim 1: A pair of hollow tube frameworks, each having a substantially U-shaped outer edge, are opposed to each other, and a rectangular shape is formed at the respective connecting portions provided on the upper and lower horizontal frames at the ends of the respective frameworks. A temporary handrail connected to a temporary handrail, wherein each connecting part of one frame body is slidably inserted into each connecting part of the other frame body, and each connecting part of the one frame body is hollow. A fixing screw hole and a small locking hole are respectively formed to penetrate through the wall thickness of the pipe, and a fixing bolt that is pressed to an arbitrary position and fixed is screwed into the fixing screw hole. A locking cylindrical body embedding hole is drilled in each connection part of the other frame body at a position that matches the small hole, and a cylindrical body is inserted into the locking cylindrical body embedding hole at a diameter of the connecting part. the coil spring is fixed in the direction, and a coil spring is embedded inside the cylindrical body,
By fixing the locking cylindrical body so that it can be buried against the elasticity of the coil spring, each frame body slides and the locking cylindrical body and the locking small hole match,
A temporary handrail with a stopper, characterized in that the locking cylindrical body protrudes and is inserted into a small locking hole and locked.