JP6901820B2 - Portable workbench - Google Patents

Description

The present invention relates to a portable workbench suitable for use in a narrow space such as a pipe space.

As a stepladder or a portable work table, a pair of legs having the same shape are generally connected so as to be openable and closable (see Patent Document 1 and the like).

Japanese Unexamined Patent Publication No. 2013-119745

However, a stepladder or a portable work table in which a pair of legs of the same shape can be opened and closed requires a large installation area for installation, and may not be used in a narrow space.
For example, in a building, a narrow space called a pipe space is secured for collectively storing equipment piping such as gas and water supply / drainage, and a portable work table suitable for use in such a narrow space is required.

The present invention has been made in view of the above points, and an object of the present invention is to provide a portable work table suitable for use in a narrow space such as a pipe space.

The portable workbench of the present invention includes a pair of left and right columns and a tread attached between the pair of left and right columns, and has a long ladder-shaped main leg and a short leg that supports the main leg. A projecting portion provided at the upper end of each of the body and the pair of left and right columns and projecting in the direction of the leg body for contacting the wall, and a projecting portion erected between the left and right projecting portions, of the projecting portion. The erection member is provided so as to be recessed from the tip that abuts on the wall, and the upper end of the leg is attached to the main leg via a metal fitting at an angle closer to vertical than the angle at which the main leg stands. With the main leg standing and supporting the main leg and the leg body standing at an angle closer to vertical than the angle at which the main leg stands and supporting the main leg, in a side view, the upper end of the pair of left and right columns is vertical. located said upper end of said leg in a direction downward, and the protrusion is protruded to the wall direction beyond the lower end of the leg, the pair of left and right posts, as widened downward at the lower It is characterized in that it extends and extends straight in the vertical direction at the upper portion, and the protruding portion is located inside the lower end width of the main leg .
Another feature of the portable workbench of the present invention is that the erection member has a plate shape or a square cylinder shape, and is arranged so that a wide surface faces in the wall direction and vice versa. is there.
Another feature of the portable workbench of the present invention is that the upper end of the leg body is rotatably attached to the main landing gear, and the leg body is perpendicular to the angle at which the main landing gear stands. It is possible to switch between a state in which the main landing gear is supported by standing at a predetermined angle close to the above and a state in which the main landing gear is supported by standing at an angle different from the predetermined angle.
Another feature of the portable workbench of the present invention is that the legs include a pair of left and right struts, a reinforcing member erected between the upper parts of the pair of left and right struts, and the pair of left and right struts. The point is that it is provided with a reinforcing member erected between the lower parts of the columns.

According to the present invention, since the landing gear stands at an angle closer to vertical than the angle at which the main landing gear stands to support the main landing gear, the area required for installation can be reduced, and the landing gear can be used in a narrow space such as a pipe space. A portable workbench suitable for this can be provided.

It is a front view which shows the portable work table which concerns on embodiment. It is a side view which shows the portable work table which concerns on embodiment. It is a rear view which shows the portable work table which concerns on embodiment. It is a top view which shows the portable work table which concerns on embodiment. It is a side view which shows the portable work table which concerns on embodiment. It is a side view which shows the state which the portable work table which concerns on embodiment is folded.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a front view showing a portable workbench 1 according to an embodiment, FIG. 2 is a right side view, FIG. 3 is a rear view, and FIG. 4 is a plan view. In the present application, the front-rear direction is the direction in which the worker mainly faces during work with the portable workbench 1 installed, and the front side of the portable workbench 1 is indicated by Fr and the rear side is indicated by Rr as necessary. ..
The portable work table 1 includes a long ladder-shaped main landing gear 10 and a short support landing gear 20 arranged so as to face the main landing gear 10 and supporting the main landing gear 10.

The main landing gear 10 is made of, for example, an aluminum alloy, and includes a pair of left and right columns 11 and treads 12 attached between the columns 11 at appropriate intervals. As shown in FIG. 3, the pair of left and right columns 11 have a shape in which the lower part extends downward (widening portion 11a) and the upper part extends straight in the vertical direction (vertical portion 11b).

The support legs 20 are made of, for example, an aluminum alloy, and have a pair of left and right columns 21, a reinforcing member 22 erected between the upper portions of the columns 21, and a reinforcing member 23 erected between the lower portions of the columns 21. Be prepared. In the present embodiment, the support leg 20 corresponds to the leg body referred to in the present invention. As shown in FIG. 1, the pair of left and right columns 21 have a shape in which the lower part extends downward (widening portion 21a) and the upper part extends straight in the vertical direction (vertical portion 21b). The widening portion 21a has the same height as the widening portion 11a of the main landing gear 10, but the vertical portion 21b is shorter than the vertical portion 11b of the main landing gear 10.

The upper end of the short support leg 20 is rotatably attached to the vertical portion 11b of the long main landing gear 10 via the rotating metal fitting 30. When the portable workbench is not used, as shown in FIG. 6, the main landing gear 10 and the support leg 20 are folded so as to be parallel to the rotation axis of the rotating metal fitting 30.
Further, the adjusting columns 11c and 21c are slidably stored in the lower part of the support column 11 of the main landing gear 10 and the lower part of the support column 21 of the support leg 20, and the height can be adjusted.

A clue rod 13 is attached to the upper part of each support column 11 of the main landing gear 10. The clue rod 13 is rotatably supported by the bracket 14, and extends upward (see FIGS. 1 to 5) and accommodates along the main landing gear 10 (see FIG. 6). Can be switched to.

Further, at the left and right upper ends of the main landing gear 10, that is, at the upper ends of each support column 11, a projecting portion 15 projecting forward (in the direction toward the support leg 20 side) substantially horizontally is provided. The projecting portion 15 includes a prism portion 15a that projects substantially horizontally forward, and a contact wall portion 15b made of a plate material provided at the tip of the prism portion 15a. The protruding portion 15 is for abutting against the wall, but the contact plate portion 15b is oscillated vertically and vertically to the tip of the prism portion 15a so that the contact wall portion 15b comes into surface contact with the wall. There is. A non-slip 16 such as rubber may be provided on the contact surface of the contact plate portion 15b with the wall.
Further, a plate-shaped or square tubular erection member 17 is erected between the left and right projecting portions 15, specifically, between the left and right prismatic portions 15a.

A pair of opening stoppers 40 are provided on the left and right sides of the portable work table 1. Each of the pair of opening stoppers 40 includes a rod-shaped or plate-shaped long piece member 41, one end of the long piece member 41 is rotatably attached to the support column 21 of the support leg 20, and the other end has a notch 42. It is formed. A locking pin 43 is provided on the support column 11 of the main landing gear 10, and the long piece member 41 can be hung on the main landing gear 10 side to lock the notch 42 to the locking pin 43. Further, a locking pin 44 is also provided on the support column 21 of the support leg 20, and by locking the notch 42 to the locking pin 43, the long piece member 41 can be accommodated along the support leg 20. it can.

Further, the portable work table 1 is provided with an opening stopper 50. The opening stopper 50 is composed of a pair of rings 51 and 52 that are rotatably connected, one link 51 is rotatably attached to the lowermost tread 12 of the main landing gear 10, and the other link 52 is attached. It is rotatably attached to the reinforcing member 23 at the lower part of the support leg 20.

In the portable work table 1 according to the present embodiment, the lower end of the main landing gear 10 and the lower end of the support leg 20 are opened so as to be separated from each other with the rotation axis of the rotating metal fitting 30 as the center from the accommodation state shown in FIG. Put it in use. When using the portable work table 1, the support legs 20 are directed toward the wall, and the operator moves up and down using the main landing gear 10. At this time, it is possible to move up and down while grasping the clue rod 13 extending upward. Further, the worker standing on the tread 12 can press a part of the body (for example, around the knee) against the erection member 17, and can perform the work in a stable posture.

Here, the portable workbench 1 according to the present embodiment can be switched between the first usage state shown in FIGS. 1 to 4 and the second usage state shown in FIG.
In the first use state shown in FIGS. 1 to 4, the main landing gear 10 and the support landing gear 20 are opened, and a pair of opening stoppers 40 are hung and passed. At this time, the links 51 and 52 of the opening stopper 50 are in a bent state.
In the first use state, the support leg 20 stands at an angle closer to vertical than the angle at which the main landing gear 10 stands to support the main landing gear 10. In the present embodiment, as shown in FIG. 2, the main landing gear 10 stands at an internal angle of about 75 degrees, while the support leg 20 stands at an internal angle of about 89 degrees.

In the first use state, as shown in FIG. 2, in the side view, the tip of the protruding portion 15 (that is, the contact wall portion 15b) protrudes beyond the lower end of the support leg 20.
In the pipe space, a plurality of pipes are often installed so as to extend vertically along the wall. In this situation, even if the left and right columns 21 of the support legs 20 are inserted between the pipes, the reinforcing member 23 erected between the lower parts of the columns 21 hits the pipes, and the lower end of the support legs 20 is positioned near the wall. I can't let you. Even in this case, the left and right projecting portions 15 can be inserted between the pipes and brought into contact with the wall, so that the portable work table 1 can be stabilized. From this point of view, the erection member 17 is arranged at a position deeper than the reinforcing member 23 at the lower part of the support leg 20, that is, at a position farther from the wall than the reinforcing member 23 so that the erection member 17 does not hit the pipe. Is preferable.

In the second use state shown in FIG. 5, the main landing gear 10 and the support leg 20 are opened until the links 51 and 52 of the opening stopper 50 extend straight, instead of hanging the pair of opening stoppers 40.
In the second use state, the support leg 20 stands at an angle different from the angle in the first use state to support the main landing gear 10. In the present embodiment, as shown in FIG. 5, the main landing gear 10 stands at an internal angle of about 75 degrees, while the support leg 20 stands at an internal angle of about 85 degrees.
When the portable workbench 1 is installed alone, it can be stabilized in the second used state in which the support legs 20 are opened more than in the first used state.

Although the present invention has been described above with the embodiments, the above-described embodiments are merely examples of embodiment of the present invention, and the technical scope of the present invention is interpreted in a limited manner by these. It must not be. That is, the present invention can be implemented in various forms without departing from the technical idea or its main features.
For example, in the above embodiment, the example in which the opening stoppers 40 and 50 are provided has been described, but one opening stopper may be provided so that the opening stopper length can be changed in a plurality of stages or steplessly.
Further, in the second use state, the main landing gear 10 and the support leg 20 may be opened at the same angle.

1: Portable work table, 10: Main landing gear, 11, strut, 12: tread, 15: protrusion, 16: erection member, 20: support leg, 21: strut, 22, 23: reinforcing member

Claims (4)

A long ladder-shaped main landing gear provided with a pair of left and right columns and a tread attached between the pair of left and right columns.
The short leg body that supports the main landing gear and
A projecting portion provided at the upper end of each of the pair of left and right columns and projecting in the direction toward the leg body for contacting the wall.
It is provided with an erection member that is erected between the left and right protrusions and is arranged deeper than the tip that abuts on the wall of the protrusion.
The upper end of the landing gear is attached to the main landing gear via a metal fitting, and the main landing gear is supported by standing at an angle closer to vertical than the angle at which the main landing gear stands.
The leg is, in a state that supports the main legs standing at an angle close to perpendicular than the angle which the main leg stand, in a side view, the said leg vertically below the upper end of the pair of left and right posts the upper end is positioned, and the protrusion is protruded to the wall direction beyond the lower end of the leg,
The pair of left and right columns have a shape that extends downward so as to widen at the lower part and extends straight in the vertical direction at the upper part.
A portable work table characterized in that the protruding portion is located inside the width of the lower end of the main landing gear. The portable workbench according to claim 1, wherein the erection member has a plate shape or a square cylinder shape, and is arranged so that a wide surface faces in the wall direction and the opposite direction. The upper end of the landing gear is rotatably attached to the main landing gear, and the landing gear stands at a predetermined angle closer to the vertical than the angle at which the main landing gear stands to support the main landing gear. The portable workbench according to claim 1 or 2, wherein the main landing gear can be switched to a state in which the main landing gear is supported by standing at an angle different from the angle of 1. The leg body is characterized by including a pair of left and right struts, a reinforcing member erected between the upper portions of the pair of left and right struts, and a reinforcing member erected between the lower portions of the pair of left and right struts. The portable workbench according to any one of claims 1 to 3.

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