JPH04120847U - Frame scaffolding handrail frame - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] To obtain a protective handrail frame attached to a framework scaffold that has a simpler structure than the conventional one and can be easily installed. With the goal. [Structure] The handrail frame 8 of the framework scaffold is provided with a locking fitting 11 at the bottom of the left and right vertical rods 10, which has a locking part 12 that is removably locked to the horizontal rod 5 of the building frame. Locking part 1 of locking metal fitting 11
2 is located offset from the handrail frame 8 toward the inside of the scaffold.
Further, grip fittings 13 are provided on the left and right vertical bars 10 of the handrail frame 8 below the locking fittings 11 at different heights on the left and right sides. The gripping metal fittings 13 removably grip the pillars 4 of the building frame from the outside of the scaffold. The grip 13 may be configured as a grip using a wedge-shaped body.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea was designed to be used when assembling frame scaffolding used at construction sites, etc. This article relates to a handrail frame attached to a frame scaffold to prevent falls.

0002

[Conventional technology]

Frame scaffolding generally consists of two gate-shaped metal building frames that are erected facing each other, with a Connect and fix the scaffolding board (cloth frame) or horizontal crosspiece horizontally, and then shake it diagonally. A single unit of scaffolding is constructed by spanning the ground and extending upward or to the left and right. Ru.

0003 When assembling this framework scaffolding sequentially from the bottom, the work must be done while riding on the topmost scaffolding. In order to protect the safety of contractors, conventionally, a horizontal rope was installed above the topmost scaffold along the scaffold. Safety is ensured by spanning ropes, etc., and connecting workers with safety belts. Ta.

0004 In addition, as other conventional frame scaffolding, instead of the gate-shaped building frame of frame scaffolding, special Using a H-shaped building frame, hang the scaffolding board at the place that corresponds to the horizontal bar at the middle height of this H-shape. At the same time, fitting protrusions are provided on both sides of this height so that handrail frames can be erected. , a configuration in which a handrail frame is provided by this is known. Traditional framework legs like this In this case, the upper end of the H-shaped building frame is fitted with the lower end of the next H-shaped building frame, and the frame scaffolding is successively moved upward. It was composed.

[0005] Furthermore, the present inventor and the present applicant are No. 6172 proposes the following handrail frame for a framework scaffold. Jikwanhei 2 -71682 is “having a removable locking hole in the locking protrusion that projects on the pillar of the building frame” A locking body is provided at the bottom of both the left and right sides of the handrail frame, and a locking body is installed at the bottom of both the left and right sides of the handrail frame. A handrail frame for a framework scaffolding characterized by having hook metal fittings installed on the vertical bars of the handrail frame. Ru. In addition, Utility Application Hei 2-126172 states that ``at the bottom of the vertical rod of the handrail frame, at the foot pillar of the building frame. A locking metal fitting that has a locking part that can be removably locked to the horizontal rod that fixes the horizontal frame, and a It is characterized by the fact that grips for gripping the pillars are provided at the bottom of both the left and right ends of the handrail frame. It is a framework scaffolding.

[0006]

[Problems that this invention attempts to solve]

When assembling the above-mentioned framework scaffolding, workers working on the scaffolding boards on the top floor For safety, ropes or protective handrail frames were installed, but the following There was a problem. The structure in which the rope is hung is a rope for hanging the worker on the rope. must be hung further, which is troublesome for the worker, and requires additional hanging rope. There was a problem in that it got in the way of work.

[0007] In addition, conventional frame scaffolding with handrail frames on each floor uses a special H-shaped building frame. Therefore, there was a problem that it could not be applied to general framework scaffolding.

[0008] Furthermore, the handrail frame of the framework scaffold proposed by the applicant has not been commonly used in the past. The above-mentioned problem can be solved by making it possible to easily attach it to the gate-shaped building frame. However, this invention also has a simpler configuration and easier installation. The purpose is to obtain a handrail frame for protection that can be used for protection.

[0009]

[Means to solve the problem]

In order to achieve this purpose, this invention changes the configuration of the handrail frame of the framework scaffold to A lock that has locking parts at the bottom of the vertical rods on the left and right sides of the frame that removably lock onto the horizontal rods of the building frame. A metal fitting is installed, and the locking part of the locking metal fitting is positioned offset from the handrail frame toward the inside of the scaffold. At the same time, the grips that removably grip the pillars of the building frame from the outside of the scaffolding are attached to the latches. They are installed at different heights at the bottom of the left and right vertical bars of the handrail frame below the fixture.

0010 In addition, there is a lock at the bottom of the vertical bars on the left and right sides of the handrail frame that removably locks onto the horizontal bars of the building frame. A locking metal fitting having a stop part is provided, and the locking part of the locking metal fitting is shifted toward the inside of the scaffold. and the locking part is locked to the horizontal rod, the tip of the locking part touches the top of the horizontal rod. This is a grip that can be used to detachably grip the pillars of the building frame from the outside of the scaffold. Install metal fittings at different heights on the left and right at the bottom of the left and right vertical bars of the handrail frame below the locking metal fittings. Ru. The grip may be configured as a grip using a wedge-shaped body.

[0011]

[Effect]

When assembling a framework scaffold, a protective device installed on the side of the scaffold board for work safety. The handrail frame can be easily installed using commonly used building frames. handrail The frame is tilted toward the scaffold, and there are retainers located at the bottom of the vertical bars on both sides of the frame that are shifted toward the inside of the scaffold. Place the locking parts of the fasteners on the horizontal rods of the left and right building frames. Using this locking part as a fulcrum, hand By pushing the upper part of the sliding frame to the outside of the scaffold, the gripping metal located below the locking part can be removed. grips the pillars of the building frame from the outside and fixes them. The grip has a wedge-shaped body. It is easier to attach and detach from the inside of the scaffold because it is a metal fitting.

0012

【Example】

FIG. 1 shows a partially cutaway front view of an embodiment of this invention, and also a partially cutaway plan view. 2. Figure 3 also shows a side view, Figure 4 shows an enlarged front view of part A in Figure 1, and enlarged flat view of part B in Figure 2. Explanation based on FIG. 5 showing the surface and FIG. 6 which is an explanatory diagram of the framework scaffolding to which this invention is attached. do.

[0013] The frame scaffolding 20 has a pair of metal gate-shaped building frames 1 facing each other, and the upper side of the building frames 1 is Hang the scaffolding board (cloth frame) 2 over the horizontal rod 5, and then combine the brace 3 diagonally. Configure. The gate-shaped building frame 1 is constructed by fixing the left and right pillars 4 at their upper ends with horizontal rods 5. Ru. When assembling the building frame 1 on the upper side, the building frame 1 is connected to the lower end of the pillar 4 of the upper building frame 1. Each of the left and right pillars 4 for fitting is provided with a fitting protrusion 6 on the upper part. Also, the construction The left and right pillars 4 of the frame 1 are provided with two upper and lower brace pins 7 that project laterally. Brace 3 is stretched across it to form a framework.

[0014] One framework scaffolding 20 has two gate-shaped building frames 1 facing each other, A scaffolding board (cloth frame) 2 is hung over a horizontal rod 5 using grips 9 provided at both ends. Furthermore, the brace 3 is stretched diagonally over the brace pin 7 and fixed. handrail The frame 8 is provided on both sides of the scaffolding board 2, and its length matches the length of the scaffolding board 2.

[0015] The handrail frame 8 protrudes toward the inside of the scaffold at the bottom of the left and right vertical bars 10, and the handrail frame 8 A locking metal fitting 11 is provided which has a shape in plan view that bends outward in the longitudinal direction of the frame at a substantially right angle. The distal end of the locking fitting 11 is a locking portion 12 that locks onto the horizontal rod 5 with a concave portion at the bottom. form. The recessed portion of the locking portion 12 allows the locking portion 12 to be locked when the locking portion 12 is locked to the horizontal rod 5. A shape in which the tip of the stop part 12 does not touch the top of the horizontal rod 5, for example, a cross-sectional circumference of the horizontal rod 5. It is made shorter than the upper quarter and is formed so as to lock onto one side of the horizontal rod 5. to this Therefore, the positions of the locking parts 12 are the same in the width direction of the framework scaffolding 20, and the same horizontal rods 5 Even when the locking portions 12 are locked in place, the tips of the adjacent locking portions 12 are There is a gap 21 at the top of the cross-sectional circle of the flat rod 5 and they do not touch each other. Therefore framework scaffolding 2 Even when assembling 0 continuously in the longitudinal direction, adjacent handrail frames 8 must be assembled in the same way. Can be installed with.

[0016] The handrail frame 8 protrudes downward and outward in the length direction from the locking metal fittings 11 of the left and right vertical bars 10. A grip fitting 13 is provided. The grip fittings 13 are provided at the height of the left and right vertical rods 10. be different. Due to this difference in height, the pillars 4 of the building frame 1 that are common to the adjacent scaffolding , adjacent gripping metal fittings 13 can be gripped. The grip fitting 13 is attached to the protrusion of the locking fitting 11. Open the opening 14 toward the inside of the scaffold so that it is grasped from the outside of the scaffold, which is opposite to the exit side. I'm letting you speak. The main body of the gripping fitting 13 is made by bending a plate-like body and has a step on one side. It is formed into a deformed U-shape, with the opening 14 being wide and the fixing part 15 being narrower. It is formed to be slightly wider than the diameter of the pillar 4. On the left and right plate-like bodies forming the opening 14 Forms large and small insertion holes 17 and 18 into which the wedge-shaped body 16 is inserted. The smaller the hole width The insertion hole 17 has a thick hole, and the insertion hole 18, which has a large hole width, has a thin hole. Ru. The wedge-shaped body 16 is a plate-shaped body formed into a wedge shape with a tapered tip. A stop part 19 is provided, and the height of this catch part 19 is such that the thick insertion hole 17 can be freely inserted and removed. The hooking portion 19 is configured to be caught in the thin insertion hole 18. Ru.

[0017] The gripping fitting 13 pulls out the tip of the wedge-shaped body 16 from the insertion hole 17 and inserts it into the hooking part 1. 9, it is locked only in the insertion hole 18, leaving the opening 14 open. and Insert the pillar 4 of the building frame 1 up to the fixed part 15 from the opening 14 side, and insert the wedge-shaped body 16. Insert it into the insertion hole 17, and hit it with a hammer or the like from the thick end of the wedge-shaped body 16 to insert it into the insertion hole 17. , 18 to grip and fix the pillar 4.

[0018] When removing the grip 13 from the pillar 4, remove the wedge-shaped body 16 as opposed to fixing it. From the tip side, move the wedge-shaped body 16 by hitting it with a hammer, etc., and remove the gripping metal 13 and the legs. Dissociate pillar 4.

[0019] In order to erect this handrail frame 8 on a frame scaffold, place the scaffold board 3 on the building frame 1 that faces the erected , and set the brace 3 on the brace pin 7 of the pedestal 4 to construct one unit of scaffolding. to be accomplished. The worker stands on the scaffold, tilts the handrail frame 8 slightly towards the inside of the scaffold, and Place the left and right locking fittings 11 on the horizontal rod 5. At this time, the grip 1 of the handrail frame 8 3, the wedge-shaped body 16 is removed from the insertion hole 17, leaving the opening 14 open. Then, by pushing the upper part of the handrail frame 8 outward, the opening 14 of the grip fitting 13 is opened. However, it naturally fits into the pillar 4 of the building frame 1 from the outside of the scaffold. Next, grab the pedestal 4 and use the metal fittings. 13 up to the fixed part 15, insert the wedge-shaped body 16 into the insertion hole 17, and insert the wedge-shaped body 1 into the insertion hole 17. From the thick end of 6, tap with a hammer or the like and fit into the insertion holes 17 and 18. 4. Grasp and fix.

[0020] The handrail frame 8 erected on one set of scaffolds in this way can be left attached as is. Assemble it as a framework scaffold.

[0021]

[Effect of the idea]

Therefore, according to this invention, when assembling a framework scaffold, it is possible to Handrail frames are used in commonly used building frames to protect the safety of contractors, such as to prevent them from falling. Moreover, it has the effect of being very easy to install and remove.

[0022] Furthermore, while the worker on the scaffolding board is standing on the handrail frame, check the locking part of the locking fitting from the scaffolding side. Place the handrail frame on the horizontal rod, rotate the handrail frame outward using the locking part as a fulcrum, and hold it. Since the metal fittings can be fitted to the pillars, it can be installed by a very small number of people. Also, by working in reverse , which has the effect of being very easy to remove.

[Brief explanation of drawings]

[Fig. 1] A partially cutaway front view of a handrail frame according to an embodiment of this invention.

[Fig. 2] Similarly partially cutaway plan view,

[Figure 3] Same side view,

[Fig. 4] Enlarged front view of section A in Fig. 1;

[Fig. 5] An enlarged plan view of part B in Fig. 2;

FIG. 6 is an explanatory diagram of a framework scaffolding with a handrail frame according to an embodiment of the invention.

[Explanation of symbols]

1 frame four-legged pillar 5 horizontal rods 8 handrail frame 10 vertical rods 11 Locking metal fittings 12 locking part 13 grip metal fittings 16 cuneiform body 20 framework scaffolding

Claims (3)

[Scope of utility model registration request] Claim 1: In a handrail frame of a framework scaffold, a locking metal fitting having a locking part that is detachably locked to a horizontal rod of the building frame is provided at the bottom of the left and right vertical rods of the handrail frame, and the locking metal fitting The locking part of the frame is shifted from the handrail frame toward the inside of the scaffold, and the tip of the locking part is on a horizontal rod and has a shape that does not touch the tips of adjacent locking parts, and the pedestal of the building frame is A handrail frame for a framework scaffold, characterized in that gripping metal fittings that are detachably gripped from the outside of the scaffold are provided at different heights below the locking metal fittings and below the left and right vertical bars of the handrail frame. [Claim 2] In a handrail frame of a framework scaffold, a locking metal fitting having a locking part that is detachably locked to a horizontal rod of the building frame is provided at the bottom of the left and right vertical rods of the handrail frame, and the locking metal fitting If the locking part is positioned inward from the handrail frame and the locking part is locked to the horizontal rod, the tip of the locking part is shaped so that it does not touch the top of the horizontal rod, A hand for a frame scaffold, characterized in that gripping metal fittings for gripping the pillars of the building frame removably from the outside of the scaffold are provided at different heights below the locking metal fittings and at the bottom of the left and right vertical bars of the handrail frame. Printed frame. 3. A handrail frame for a framework scaffold according to claim 1 or 2, wherein the gripping metal is a gripping metal using a wedge-shaped body.