JPS6329839Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a handrail/hook device that is attached to the upper end of a ladder.

In the conventional general ladder structure, the left and right sides of the ladder, on which the treads are installed, protrude from the top of the ladder. It was made to stand on the floor while hanging against a standing wall.

However, when using such conventional ladders, the top end of the ladder not only swings left and right, making the footing unstable, but also makes it difficult to move between the top end of the ladder and buildings such as the middle 2nd step. At times, the worker's posture becomes unstable because there is no place to hold onto, which can be dangerous.
Furthermore, when climbing a ladder, there was a problem that the workability at the top of the ladder was not good, such as the user's posture becoming low and being prone to leaning backwards.

The present invention has been made to solve the above problems, and the purpose of the present invention is to provide a simple structure by simply attaching a rod, to stabilize the ladder and stabilize the work of the user. To provide a hook device that can also be used as a handrail for a ladder.

As a means to achieve this purpose, the handrail/hook device of the present invention has a long handrail part with legs hanging down from both ends, and an inward L part extending from one leg.
The leg ends of each of the pair of rods, which are formed into one piece with a hook part folded into the shape, are attached to the upper end of each of the left and right side plates of the ladder, and the legs on the hook side are attached to the back of the upper end of the side plates. It is characterized by being fixed in place in a state where it protrudes to the side.

Hereinafter, the present invention will be explained based on an illustrated embodiment.

As shown in FIGS. 1 to 4, the handrail hook device of the embodiment is attached to the upper end of each of the left and right side plates 2 on which the treads 1 of the ladder are installed. Since it is a foldable ladder, it is attached to each partial side plate 3 at the top of each side plate 2.

The structure of the side plate 2 of this ladder is that it is divided into upper and lower quarters and formed separately, and each partial side plate is jointed by upper and lower joint hinges 4 and an intermediate joint hinge 5. ,
When not in use, it is folded in the order shown in Figures 3a and 3b to form a compact box shape.

The handrail/hook device of the embodiment is formed by a pair of left and right rods 6, each of which has legs 7a and 7b bent at both ends into a substantially U-shape. It is a pipe member in which a handrail portion 7 and a hook portion 8 extending from one leg 7a and folded inward in an L shape are integrally molded, and each of the legs 7a and 7b The base ends 7c and 7d are flattened and have a mounting hole in the center, and rubber caps 9 and 10 are fitted to both ends of the rod 6 to prevent danger. .

On the other hand, stud bolts projecting outward are installed in two places near the upper end and the lower end of the partial side plate 3, and both leg ends 7c and 7d of the rod 6 are
The studs are inserted through the mounting holes and fixed with respective cap nuts 11.

In the ladder equipped with the handrail hook device of the embodiment configured in this way, when the ladder is attached to a building etc., the hook portion 8 can be hooked to, for example, the handrail wall of the mezzanine floor A. The top end of the ladder can be securely rested.

Furthermore, when workers climb up and down ladders,
Even when climbing near the top or taking an unreasonable posture when moving between buildings, the user can perform stable movements by grasping the handrail portion 7.

As described above, according to the handrail/hook device according to the present invention, a pair of rods in which the handrail part and the hook part are connected as a single unit are attached to the upper end of each of the left and right side plates of the ladder. This configuration has the effect of improving the workability and safety of the ladder, such as ensuring that the ladder is held in the leaning position and stabilizing the worker when climbing or descending the ladder.

[Brief explanation of the drawing]

1 is a front view of a handrail/hook device showing one embodiment of the present invention, FIG. 2 is a left side view of the same, and FIG.
Figures a and 3b are views of the folded ladder of Figure 2, and Figure 4 is an enlarged view of the upper part of Figure 2. 2... Side plate, 3... Partial side plate forming the upper end of the side plate, 6... Rod, 7... Handrail portion, 7a, 7b...
...Leg, 7c, 7d...Leg end, 8...Hook part.

Claims (1)

[Scope of utility model registration request] Each pair of rods is made up of a long handrail part with legs hanging down from both ends, and a hook part that extends from one leg and is folded inward into an L shape. A handrail/handrail hook device characterized in that each leg end is fixed to the upper end of each left and right side plate of a ladder with the hook-side leg protruding toward the rear side of the upper end of the side plate.