JP2505926Y2 - Auxiliary handrail for aerial work platforms - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of use] The present invention relates to an auxiliary handrail that connects support handrails in an aerial work platform in which a support handrail is erected on a work floor.

[Conventional technology]

Conventionally, this type of aerial work platform has been shown in FIGS.
As shown in FIG. 11, a pair of supporting handrails 2 are erected on the outer portion of the upper surface of the work floor 1 with a predetermined space therebetween, and
Support handrails 3 are erected on both sides of the upper surface of each of the pillars, and a pillar 4 is provided on the end surface of the work floor 1 on the side far from the support handrail 2.
There is known an aluminum one in which a mounting bracket assembly 5 for mounting on one surface of the column is provided, and a supporting bracket assembly 6 for contacting one surface of the pillar 4 is provided on the lower surface of the work floor 1. ing. Then, the work platform at high places mounts the mounting bracket assembly 5 on a mounting piece that is welded to the column 4 in advance, and abuts the supporting bracket assembly 6 on the column 4 to support the column 4 so that the column 4 is predetermined. It can be installed in any position.

[Problems to be solved by the device]

By the way, in the above-mentioned conventional work platform for aerial work, a pair of upper and lower chains 7 are removably hung between a pair of supporting handrails 2, but in recent years, with the increasing demand for improved safety, It has been pointed out that the flexibility of chain 7 leads to instability, and a new configuration to replace chain 7 has been demanded.

The present invention has been made in view of the above circumstances, and an object of the present invention is to further improve the safety in place of a chain and to have a good detachability and a space between supporting rails. It is to provide an auxiliary handrail for an aerial work platform that can flexibly respond to changes in the space.

[Means for solving the problem]

In order to achieve the above-mentioned object, the present invention is an auxiliary handrail for an aerial work platform that connects between supporting handrails standing on a work floor, and is engaged with the supporting handrail at both ends of a handrail main body. A pair of hanging metal fittings is provided, and a space between the pair of hanging metal fittings is set so that at least the pillar portion of the supporting handrail can be inserted.

[Action]

In the auxiliary handrail of the aerial work platform according to the present invention, the support handrail support column is inserted between one of the pair of hooks provided at both ends of the handrail main body, and the pair of the above-mentioned pair of hooks is inserted. By engaging the hooks with the pair of supporting handrails, the supporting handrails are connected to each other by the handrail main body.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

1 to 3 show a first embodiment of the present invention. In these drawings, reference numeral 10 is a handrail main body, and the handrail main body 10 includes a pipe portion 11 and side edges of the pipe portion 11. It is integrally configured with an L-shaped rotation stopping portion 12 extending downward. A groove 13 is formed in the pipe portion 11 above the anti-rotation portion 12, and a pair of hooks 14 and 15 are fitted and welded to both ends of the groove 13, respectively. There is. Also, these hooks 14,1
The reference numeral 5 has a substantially L-shape with a curved portion 16 on the upper portion thereof, which engages with the handrail portions 8 of the supporting handrails 2 and 3 (see FIGS. 8 to 10). An interval is formed between the hooks 14 and 14 as well as between the hooks 15 and 15 so that the support columns 9 of the supporting handrails 2 and 3 can be inserted. In addition, each hanging bracket 1
A through hole for inserting a toggle pin 17 is formed in each of the lower end portions of the 4, 15 and the detent portion 12 facing the lower end portion, and the toggle pin 17 has two types of long and short pin portions 18, 1.
9 is rotatably connected. The base portion of each pin portion 18 is connected to the locking portion 12 between the hanging metal fittings 14 and 14 and between the hanging metal fittings 15 and 15 via the connecting ring 20, the chain 21, and the connecting wheel 22.

The auxiliary handrail configured as described above is shown in FIGS.
As shown in FIG. 4, when one of the supporting handrails 2 is attached to the work platform in place of the chain 7 instead of the chains 7 and the space between the support columns 9 of the supporting handrail 2 is narrow, as shown in FIG. The inner pillar 14 is hooked on the upper and lower handrails 8 of one of the supporting handrails 2 by sandwiching the outer strut portion 9 between the respective hanging metal pieces 14, 14 and the other handrail portion 8 of the other supporting handrail 2 The pair of hooks (15, 15) are hooked, the toggle pin (17) is inserted into the through holes of the rotation stop part (12) and the inside hooks (14, 15), and the short pin part (19) is rotated downward. As a result, the pipe portion 11 is provided outside the pair of upper and lower handrails 8 (to the left in FIG. 1).
The handrail main body 10 is passed between the support handrails 2 in a line.

If the space between the support pillars 9 of the supporting handrail 2 is wide,
As shown in the figure, the support column 9 on the inside of one of the supporting handrails 2 is inserted between the hooks 14 so that the outside hooks 14 are hooked on the upper and lower handrails 8 of the one supporting handrail 2. At the same time, the pair of brackets 15 and 15 are hooked on the handrail portion 8 of the other supporting handrail 2, and the toggle pin 17 is inserted into the through holes of the rotation preventing portion 12 and the outer hooks 14 and 15, and the short pin is further shortened. Part 19
Rotate downward. As a result, the pair of upper and lower handrails 8
The handrail main body 10 is handed over to each.

In this way, when the distance between the pair of supporting handrails 2, 2 is within a predetermined range, it is possible to smoothly pass the auxiliary handrail between the supporting handrails 2, 2 and, moreover, between the supporting handrails 2, 2. Regardless of whether it is narrow or wide, by inserting the column part 9 between the pair of hooks 14, 14 (or the hooks 15, 15), the column part 9 and the rotation stop part 12 When the handrails 10 come into contact with each other, it is possible to prevent the handrail main body 10 from rotating outward (counterclockwise in FIG. 1), thereby further improving safety. In addition, the above work platform is usually
As shown in FIG. 11, two units are attached by sandwiching the pillar 4.
Moreover, the transfer board A is passed between the working floors 1 and 1 facing each other,
Although the work can be performed on the four circumferences of the pillar 4, in this case, the auxiliary handrail can be handed over between the handrail portions 8 of the supporting handrails 3, 3 arranged in a straight line in the same procedure as described above. Therefore, it is possible to flexibly cope with a change in the distance between the supporting handrails 3 according to the size of the pillar 4.

6 and 7 respectively show the second and third embodiments of the present invention. In these embodiments, the pipe portion 11 and the rotation stopping portion of the integrated structure in the first embodiment are shown. Instead of the handrail body 10 consisting of 12 and the hooks 14 and 15, the pipe 3
The rotation stoppers 31, 32 and the hooks 33, 34 are welded to each other and used. And, even in these examples,
The same effect as the first embodiment can be obtained.

[Effect of device]

As described above, the present invention is an auxiliary handrail for an aerial work platform that connects between the support handrails that are erected on the work floor.
At both ends of the handrail main body, a pair of hanging metal fittings that engage with the supporting handrail are provided respectively, and an interval between the pair of hanging metal fittings is set so that at least the pillar portion of the supporting handrail can be inserted. Therefore, the supporting column of the supporting handrail is inserted between one of the pair of metal fittings provided at both ends of the handrail main body, and the pair of metal fittings is used as a pair of supporting rails. By engaging them, both supporting handrails can be connected by a rigid handrail body, which can further improve safety, and is easy to attach / detach as well as to change the spacing between the supporting handrails. You can respond flexibly.

[Brief description of drawings]

1 to 5 show a first embodiment of the present invention. FIG. 1 is a side view, FIG. 2 is a front view, FIG. 3 is a bottom view, and FIG. FIG. 5 is an explanatory view of a case where the supporting handrails are wide, and FIG. 6 is a second view of the present invention.
FIG. 7 is a perspective view showing an embodiment of the present invention, FIG. 7 is a perspective view showing a third embodiment of the present invention, FIGS. 9 is a plan view, FIG. 10 is a side view, and FIG. 11 is a perspective view when two aerial work platforms are attached to a pillar. 1 ... Work floor, 2,3 ... Support handrails, 9 ... Stands, 10 ...
… Handrail body, 14,15,33,34 …… metal fittings.

Claims (1)

(57) [Scope of utility model registration request] 1. An auxiliary handrail for an aerial work platform which connects between supporting handrails erected on a work floor, and a pair of hooks for engaging with the supporting handrail are provided at both ends of the handrail main body. An auxiliary handrail for an aerial workbench, characterized in that the space between the pair of hooks is set so that at least the support column of the supporting handrail can be inserted.