JP2000017978A - Working bench - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an innovative working bench very excellent in practicality. SOLUTION: A working bench is attached to the footrest rung 1a of a ladder or stepladder, and legs 3 are pivotally attached to the rear of a rest 2. Connections 4 connected to the footrest rung of the ladder or stepladder are provided at the ends of the legs 3. Hooked parts 5 fitting over and lockingly connected to the footrest rung above the footrest rung to which the connections 4 of the legs 3 are connected are provided at the front of the rest 2, and a locking part 6 to which the tips of toes are locked and a pressing part 7 to be pressed by the heels are provided at the front and rear of the rest 2, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work table.

[0002]

2. Description of the Related Art Conventionally, for example, when performing repair work or painting work on a wall of a building or the like, a ladder or a stepladder is arranged on the side of the wall and the footrest is placed next to the ladder. The work is performed on a pier, or a scaffold is set up beside a wall surface, and a plate material is laid horizontally on the scaffold to perform work on the plate material.

[0003] However, the former can easily perform the installation work and the removal work, but the work on the horizontal rail is unstable because the feet are unstable, and the latter can work on the plate material and the feet are stable. Therefore, the scaffold formation operation and the removal operation are extremely troublesome.

[0004] In addition, securing a safe scaffold for work at a high place is a very important factor that can give the worker a sense of security and dramatically improve work efficiency, as well as the safety of the worker. Simplification of forming and removing operations is a very important factor in shortening the construction period.

Therefore, conventionally, depending on the contents of the work, the work is performed using a ladder, a stepladder, etc. in preparation for the unstable scaffolding, or the work period is delayed. At present, they are working on a scaffold (prioritizing safety) or selecting one of them.

The present invention provides a workbench that solves the above-mentioned problems.

[0007]

The gist of the present invention will be described with reference to the accompanying drawings.

A ladder, a stepladder or the like is attached to a horizontal rail 1a. A leg 3 is pivotally attached to a rear portion of the mounting body 2, and a tip of the ladder or a stepladder is attached to the tip of the leg 3. A connecting portion 4 is provided to be connected to the foot rail 1a. On the other hand, a front portion of the mounting body 2 is connected to the foot rail 1a to which the connecting portion 4 of the leg 3 is connected. The hook 1 is provided with a hook-like portion 5 which is fitted and connected to the crosspiece 1a.
However, the present invention relates to a workbench in which a pressing portion 7 for pressing with a heel is provided at a rear portion of the mounting body 2.

Further, in the workbench according to the first aspect, a leg 3 having an expansion / contraction mechanism 8 is adopted as the leg 3, and the length of the leg 3 is adjusted by the expansion / contraction mechanism 8.
Are configured to be able to be held in a substantially horizontal state.

[0010]

According to the present invention, there is provided a connecting member 4 provided at the tip of a leg 3 on a foot rail 1a such as a ladder or a stepladder.
And the hook-shaped part 5 provided at the front part of the mounting body 2 is connected to the foot rail 1a to which the connecting part 4 of the leg 3 is connected.
If the hooked horizontal rail 1a is fitted and locked to the upper horizontal rail 1a (the horizontal rail 1a connecting the hooks 5 is preferably selected in consideration of the horizontal position of the mounting body 2 as much as possible). ), The worker can work on the mounting body 2 in this state.

Further, the worker can use the toes and heels of the foot to connect the mounting body 2 to the workable state as described above (connecting the connecting body 4 and the hook-shaped portion 5 to the foot rail 1a, respectively). Mounting body 2
Or the mounting body 2 can be moved so as not to hinder the elevating and lowering of the worker. More specifically, the work piece 2 in the operable state is hooked on a locking portion 6 provided at a front portion of the work piece 2 to lift the work piece 2 so that the hook-shaped portion with respect to the footrest horizontal rail 1a is lifted. 5 is released and the mounting body 2 is moved forward as it is (when the mounting body 2 is protruded to the back side such as a ladder or a stepladder), the mounting body 2 moves up and down. To get in the way. When the mounting body 2 in this state is returned to the original workable state again, the mounting body 2 is pressed by, for example, pressing the pressing portion 7 provided at the rear portion of the mounting body 2 with heels. When it is moved so that it is pulled out, the hook-shaped portion 5 becomes
And the mounting body 2 can be brought into a workable state again. When the mounting body 2 moves, the legs 3
Will slide with the connecting portion between the connecting body 4 and the foot rail 1a as a fulcrum.

Therefore, according to the present invention, the workability of forming and removing a scaffold on a ladder, a stepladder, or the like can be extremely easily performed, and the scaffold is easy for a worker to work and provides an extremely safe working environment. By taking full advantage of the simple construction and removal work of ladders and stepladders due to the simple structure of ladders, stepladders, etc., it is possible to achieve both safety and workability at height work, In addition, various working styles can be selected, and handling can be performed extremely easily.

According to the second aspect of the present invention, in addition to the functions and effects of the first aspect of the present invention, an extension mechanism 8 is provided on the leg 3 to hold the mounting body 2 in a horizontal state. Since the configuration is such that a safe working environment in which the worker can easily work is always obtained, the working table is extremely excellent in practical use and is a revolutionary work table.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings illustrate one embodiment of the present invention and are described below.

Reference numeral 1 denotes a ladder, 1a denotes a cross rail of the ladder 1, and 9 denotes a work surface on which the ladder 1 is leaned. The mounting body 2 is formed by molding an appropriate metal member into a rectangular shape in plan view as shown in FIG. On both sides of the front part of the mounting body 2, a pair of metal hook-shaped plate members are fixed to the left and right side surfaces so as to protrude. The hook-shaped plate member is a hook-shaped portion 5 referred to in the claims, and the hook-shaped portion 5 is configured so that the concave portion 5a can be engaged with and connected to the foot rail 1a of the ladder 1.

At the rear of the mounting body 2, metal legs 3 are pivotally attached to the left and right inner surfaces as shown in FIG.

The leg 3 is composed of a pair of vertical members 3a and a pair of horizontal members 3b spanned between the vertical members 3a. ,
A U-shaped connector 4 having a male screw portion 4a having a predetermined length is screwed into the connector. The connecting body 4 is configured so that the concave portion 4b can be fitted and locked to the foot rail 1a of the ladder 1. Therefore, the legs 3 can be connected only by placing the connecting body 4 on the foothold horizontal rail 1a of the ladder 1 and engaging and locking the connecting body 4. In addition, by rotating the connecting body 4 forward and backward. The male screw portion 4a is put in and out, and the leg 3 can expand and contract to adjust the length. A configuration in which the male screw portion 4a is put in and out by forward and reverse rotation of the connecting body 4 is the telescopic mechanism 8 of the leg 3 referred to in the claims, and the leg 3 is always adjusted by adjusting the length by the telescopic mechanism 8. The upper surface 2a of the mounting body 2 can be held so as to be in a horizontal state, so that a safe working environment where the worker can always work easily can be obtained. Reference numeral 11 denotes a double nut structure.

In the present embodiment, the connecting member 4 provided at the tip of the leg 3 is connected to the foot rail 1a such as a ladder or a stepladder. When the provided hook-shaped portion 5 is fitted and locked to the footrest horizontal bar 1a above the footrest horizontal bar 1a to which the connecting portion 4 of the leg 3 is connected (the hook-shaped portion 5 is connected). The foot rail axle 1a
Is desirably selected in consideration of the fact that the upper surface 2a is as horizontal as possible. In this state, the worker can work on the mounting body 2.

In the present embodiment, for example, as shown in FIG.
The plate 10 is placed between the mounting bodies 2 and the back surface of the hook-shaped portion 5 and the pressing portion 7.
If it is installed in a state where it is supported by (1), it can be satisfactorily performed even on the plate 10. On this occasion,
The placing body 2 may be arranged on the outer side surface (elevating surface) of the ladder 1 as shown in FIG. 2, or the placing body 2 may be placed inside the ladder 1 as shown in FIG. It may be arranged on the side surface (non-elevating surface) (the arrangement of the mounting body 2 as shown in FIG. 3 is particularly effective when the inclination angle of the ladder 1 is small in consideration of the direction in which the load is applied. Is.).

In this embodiment, an engaging portion 6 formed by bending an appropriate metal rod-shaped member into an L-shape in side view is provided on the front upper surface of the mounting body 2. Is provided with a pressing portion 7 formed by bending an appropriate metal rod-shaped member into a U-shape in a front view.

When the locking portion 6 is lifted while the toe of the foot is hooked, the hooked portion 5 provided at the front portion of the mounting body 2 releases the locked and connected state of the hook-shaped portion 5a to the horizontal rail 1a. The pressing portion 7 can pull out the mounting body 2 by pressing with the heel of the foot until the hook-shaped portion 5 is engaged with the hook-shaped horizontal rail 1a. Specifically, as shown in FIG. 6, the mounting body 2 in the operable state shown in FIG. 5 is hooked on the hook 6 with the toe as shown in FIG. When the engaged connection of the portion 5 is released and the mounting body 2 is moved forward as it is (when the mounting body 2 is projected to the back side of the ladder 1), the mounting body 2 is lifted and lowered by the worker. It can be out of the way. When the mounting body 2 in this state is returned to the original workable state again, the pressing portion 7 provided on the rear portion of the mounting body 2 is pressed by the heel as shown in FIG. When the placing body 2 is moved so as to be pulled out, the hook-shaped portion 5 is fitted and locked to the foot rail 1a so that the placing body 2 shown in FIG. it can. When the mounting body 2 is moved, the leg 3 slides with the connecting portion between the connecting body 4 and the foot rail 1a as a fulcrum P. Therefore, in the present embodiment, it is possible to easily switch between the operable state of the mounting body 2 and the state in which the worker of the mounting body 2 does not hinder the lifting and lowering of the mounting body 2 by using the feet without using one hand.

Therefore, according to the present embodiment, the work of forming and removing a scaffold on a ladder, a stepladder or the like can be performed extremely easily, and the scaffold is easy for a worker to work and provides an extremely safe working environment. By taking full advantage of the simple construction and removal work of ladders and stepladders due to the simple structure, it is possible to achieve both safety and workability at height work, Various implementation styles can be selected and handling can be performed extremely easily. For example, anyone can easily use even a small work in an ordinary household, which is very convenient.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the present embodiment.

FIG. 2 is a side sectional view showing a use state of the present embodiment.

FIG. 3 is a side view showing a use state of the present embodiment.

FIG. 4 is a perspective view showing a use state of the present embodiment.

FIG. 5 is a perspective view showing a use state of the embodiment.

FIG. 6 is a side view illustrating the embodiment.

FIG. 7 is a side view illustrating the embodiment.

[Explanation of symbols]

 Reference Signs 1a Foot rail horizontal rail 2 Mounting body 3 Leg 4 Connecting part 5 Hook-shaped part 6 Locking part 7 Pressing part 8 Extension mechanism

Claims (2)

[Claims] A ladder, a stepladder or the like is attached to a horizontal rail, and a leg is pivotally attached to a rear portion of the mounting body, and a tip of the ladder or a stepladder is attached to a tip of the leg. A connecting portion connected to the horizontal rail is provided, while a front portion of the mounting body is engaged and locked to a foot horizontal rail above the foot horizontal rail to which the connecting portion of the leg is connected. A hook portion is provided at the front of the mounting body, and a locking portion to which a toe is locked is provided at a front portion of the mounting body, and a pressing portion for pressing with a heel is provided at a rear portion of the mounting body. And workbench. 2. The workbench according to claim 1, wherein a leg with a telescopic mechanism is adopted as the leg, and the length of the leg is adjusted by the telescopic mechanism to hold the mounting body in a substantially horizontal state. A work table characterized in that the work table can be operated.