JPH0312103Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a work scaffolding device used for high-altitude work on slopes such as land reclamation work.

[Prior Art] Conventionally, when working at high places on slopes during land preparation work, the current situation is to use wooden ladders or the like to work on areas that are above the height of the worker.

[Problems that the invention aims to solve] However, the conventional ladders used for high-altitude work have unstable footing, are dangerous, and cannot perform satisfactory work. It was hot.

The present invention was developed under the above circumstances, and its purpose is to provide a work scaffolding device that allows work to be carried out safely at high places on slopes during land reclamation work, etc. It is about providing.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention includes a ladder main body, a work frame integrally formed in parallel with the ladder main body, and a plurality of steps on the work frame. It includes a pair of upper and lower support frames suspended horizontally, a work floor board hooked to the pair of support frames, and a handrail frame erected on the work floor board, and the work floor board has the above-mentioned support frame on its front edge. a first hook member that is attached to the upper support frame; and a second hook member that is attached to the lower support frame via a pair of left and right extendable support legs that are pivotally supported at the lower part of the rear edge.
A gripping arm is provided on the top of the handrail frame to be gripped and fixed to the work frame so as to be extendable and retractable in the forward direction, and to adjust the inclination of the ladder body and the work frame. The working floor plate is maintained horizontally by adjusting the extension and contraction of each support leg and gripping arm.

[Function] That is, the present invention has the above-mentioned configuration, so that a work frame parallel to the ladder body is integrally provided, a work floor plate is attached to this work frame, and the work floor plate is attached to the work frame. The ladder can be adjusted to maintain a horizontal state depending on the inclination angle of the ladder body and the work frame.
Since the ladder and the work scaffold can be separated, and the work floor plate can be adjusted horizontally even if the slope angle changes, it is possible to work in a stable posture and improve safety.

[Example] The present invention will be described below based on an illustrated example.

As shown in FIGS. 1 and 2, reference numeral 1 in the figures is a ladder main body, and between a pair of left and right frames 2 and 3, a large number of rungs 4 are horizontally suspended. A working frame 5 is integrally formed in parallel on one frame 3 side of the ladder body 1, and the working frame 5 has a pair of upper and lower support frames 6, 7 having a plurality of steps and having a predetermined interval. It is suspended horizontally. and,
A work stand 8 is removably provided between the pair of upper and lower support frames 6 and 7 of the work frame frame 5, and the work stand 8 is connected to a work floor board 9 as shown in FIG. , the front edge 9a of this work floor plate 9
A pair of left and right first hook members 10, 1 attached to the
0, a pair of left and right support legs 13, 13, one end of which is pivoted to the lower surface side of the rear edge 9b of the work floor plate 9 via a bracket 11 and a shaft 12; The second hook members 15, 15 fixed via the auxiliary support legs 14, 14 can be attached and detached via the insert portions 16, 17, 18 around the work floor plate 9 except for the ladder main body 1 side and the front side. An upright handrail frame 19, a gripping arm 21 extending in the front direction attached to the upper outer side of the handrail frame 19 via a socket 20, and a connecting plate 22 and a gripping arm 21 attached to the tip of the gripping arm 21. The auxiliary support legs 14, 14 are composed of a grip portion 24 which is pivotably supported via a shaft 23 so as to be movable up and down.
3 and 13, the grip arm 21 can be adjusted vertically in multiple stages by bolts 25 and nuts 26.
By inserting and locking a pin 27 with respect to 0, it is possible to freely adjust the expansion and contraction in a plurality of steps in the front and rear direction. Note that 28 and 29 in the figure are support legs provided on the back side of the frame 2 of the ladder main body 1 and the working frame 5, respectively, and are spacers that are provided at a constant distance from the slope H of the land preparation work section. It plays the role of In addition, 30 in the figure indicates each of the frames 2 and 3 of the ladder body 1 and the working frame frame 5.
The ladder main body 1
And the working frame 5 is stably positioned on the ground G.

That is, the above-mentioned work platform 8 is mounted on the ladder body 1 at a predetermined inclination angle α on the slope H during land reclamation work.
In assembling it into the work frame 5 that is integrally hung with the
0 to the upper support frame 6. Then,
A second hook member 15,
15 to the lower support frame 7, and the auxiliary support leg 14 is attached to the work floor plate 9 at a slope angle α.
After adjusting the extension and contraction to the angle β that maintains the horizontal state (α=β) according to Then, the grip portion 24 is fastened and fixed to the working frame 5 via thumbscrews (not shown), thereby assembling the working scaffold.

In the above embodiment, the expansion and contraction of the auxiliary support leg 14 and the gripping arm 21 can be adjusted in stages using the bolts 25, nuts 26, pins 27, etc. By adjusting the extension and contraction, it becomes possible to steplessly adjust the horizontal maintenance of the work floor board with respect to the slope angle.

[Effects of the invention] As is clear from the above description, according to the invention, work frames are integrally arranged side by side on the ladder body, a work floor plate is provided on the work frames, and a scaffold is assembled. Since this work floor board can be maintained horizontally with respect to the slope angle,
The worker can work using the work floor plate of the work frame as a foothold, and the work posture is always stable, which has the excellent effect of allowing work to be carried out very safely.

[Brief explanation of the drawing]

FIG. 1 is a front view showing one embodiment of a working scaffolding device according to the present invention, FIG. 2 is a side view of the same, and FIG. 3 is an enlarged sectional view of a main part taken along the line shown in FIG. 1. 1...Ladder body, 5...Work frame, 6, 7
... Support frame, 8... Work frame, 9... Work floor board, 9a... Front edge, 9b... Rear edge, 10... First hook member, 13... Support leg, 14... Auxiliary support leg, 15
...second hook member, 19...handrail frame, 21...gripping arm, 24...gripping portion, H...slope, G...ground,
α…Slope angle.

Claims (1)

[Scope of utility model registration request] A ladder body, a work frame integrally formed in parallel with the ladder body, a pair of upper and lower support frames suspended horizontally on the work frame in multiple stages, and a work floor board hooked to these pair of support frames. and a handrail frame erected on the work floor board, and the work floor board has a first hook member attached to the upper support frame on the front edge, and a shaft on the lower part of the rear edge. A second hook member is attached to the lower support frame via a pair of supported left and right extendable support legs, and a grip is fixed to the work frame on the upper part of the handrail frame. The holding arm is provided to be extendable and retractable forward, and each support leg and gripping arm are adjusted to extend and contract according to the inclination of the ladder main body and the working frame,
A work scaffolding device characterized in that the work floor plate is maintained horizontally.