JP3015734B2 - Workbench - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work table which can be compactly folded and which can increase rigidity in use.

[0002]

2. Description of the Related Art A work table 50 as shown in FIGS. 12 and 13 is conventionally known. The work table 50 includes a base plate 51.
And a pair of legs 52, 53 provided on both sides of the base plate 51 so as to be swingable, and between both legs 52, 53, both ends are provided so as to be swingably connected to the legs 52, 53. And a brace 54.

[0003] This worktable 50 is different from a stepladder for simply climbing to a high place, in that work can be performed on a baseplate 51. The worktable 50 is wider than a general stepladder and does not bend. It has been. Further, only one leg 52 has a ladder structure, and the other leg 53 constitutes a support frame. When such a work table 50 is not used, the base plate 51 is linearly developed in a direction of extension of one leg body (normally, the leg body 53 on the support frame side) when it is not used.
The other leg (the leg 52 on the ladder side) with respect to the leg 53
Can be superposed in parallel (see FIG. 13).

[0004]

SUMMARY OF THE INVENTION Both legs 52, 53
The brace 54 provided between the legs 5 prevents the legs 52 and 53 from interfering with the legs 5 when they are not used.
2, 53 were attached outside in the width direction. And
The brace 54 is formed of a thin plate material in order to prevent the working table 50 from protruding laterally.
Needless to say, the left and right braces 54 are separate and independent. For this reason, not only the rigidity of the brace 54 itself but also the overall rigidity when assembled in a state of use as the worktable 50 is not satisfactory.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a work table which can be compactly folded and which can increase rigidity in use (particularly, rigidity as a brace). The purpose is to do.

[0006]

According to the present invention, the following technical measures have been taken in order to achieve the above object. In other words, the present onset
Akira, in the above-mentioned work table, the brace is the leg
It is formed in a frame structure extending in the width direction of the body, and
The two legs in a folded state parallel to
So that the distance between the brace
The position where the swing fulcrum with respect to the plate protrudes toward the other leg.
Is provided at the upper end of the one leg .

[0007] The intermediate as a more specific structure of the present invention, For example, the a predetermined height position of the two leg has a swing fulcrum for the brace in a position protruding into the relative direction inside the two legs Part joint is provided, the protrusion amount of the upper joint is set so as to correspond to the thickness dimension of the brace, and the protrusion amount of the intermediate joint is determined by the thickness of the brace.
The one set so as to correspond to about half of the direction dimension can be adopted (claim 2).

[0008] According to the present invention described above, the swing with respect to the base plate.
An upper joint having a fulcrum at a position protruding toward the other leg
Parallel to each other by providing at the upper end of one leg
The legs are in a folded state with a frame structure
Are separated by the storage interval of the
Of a frame structure with almost the same width as both legs
Adopted in spite, the one leg body and the base plate with respect to those linearly exhibition <br/> is opened, and a parallel tripartite and leg of the brace and other hand to each other physician can be in a flat shape, this
For, it is possible to obtain a work table of easy folding appearance and the compact was be handling and storage as a whole. Also,
The race is formed in a frame structure that extends in the width direction of the leg
As a result, the rigidity of the brace alone and the workbench as a whole can be increased , and the folded state is compact.
In, yet Ru it is possible to obtain high the platform rigidity.

In the present invention , both ends are swingably connected to the inner corners of the base plate and one of the legs with respect to the base plate and the legs, and the intermediate portion is bendable only in one direction. It is possible to provide a strut member. With this configuration, the work table can be moved in the assembled state, so that the work position can be changed quickly and easily without interrupting the work.

The base plate is provided with a cutout portion that opens at least to the side in order to avoid interference with the upper joint at a portion where the leg having the upper joint at the upper end is provided. It is preferable to carry out (claim 4). This prevents the base plate from being deformed due to contact with the upper joint, even when the work table is repeatedly assembled and folded. In other words, if the base plate is deformed, it is obvious that assembling and folding of the work table becomes difficult or impossible, so that the effect that these can be prevented can be obtained.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 8 show a first embodiment of a work table 1 according to the present invention.
From the assembled state as shown in FIG. 1 and FIG.
It is possible to fold into a flat folded shape as shown in Fig.

The work table 1 has a base plate 2, a pair of legs 3 and 4 provided on both sides of the base plate 2 so as to be swingable, and both ends between the two legs 3 and 4. It has a brace 5 provided to be swingably connected to the legs 3 and 4 and a projecting member 6 provided at an inner corner between the base plate 2 and one leg 3. The base plate 2 is integrally formed of a wide plate-shaped aluminum alloy extruded material having a plurality of mutually parallel ribs on a lower surface.

One leg 3 (see FIG. 1) has a ladder structure in which a plurality of step bars 3b are provided at predetermined intervals in the height direction between two vertical bars 3a. . The other leg 4 has a support frame structure in which a plurality of appropriate width-direction connecting members 4b are provided between two vertical bars 4a. For the vertical bars 3a and 4a, the step bar 3b, and the width direction connecting member 4b, an aluminum alloy extruded material having a U-shaped cross section or a hollow cross section is used.

The support frame side leg 4 is provided with a rearward moving roller 7 near the lower end thereof. Brace 5
As shown in FIG. 4, a pair of left and right main rods 5a provided at substantially the same interval as the width of the legs 3, 4 is provided with connecting members 5b and 5c between them, so that a frame structure as a whole is provided. It is formed to have Including the main rod 5a,
For the connecting members 5b and 5c, an aluminum alloy extruded member having a U-shaped or hollow cross section is used.

An upper joint 9 is provided at the upper end of the ladder-side leg 3 so as to position the swing fulcrum 8 with respect to the base plate 2 toward the upper end of the support frame-side leg 4. . The upper end of the support frame side leg 4 is directly connected to the base plate 2 by the swing fulcrum 10 without the intervention of a joint or the like. In the upper joint 9, the dimension from the inner surface of the ladder-side leg 3 to the swing fulcrum 8 is the storage interval for the brace 5, that is,
The brace 5 is formed corresponding to the dimension h in the thickness direction (see FIG. 3).

On the other hand, at the predetermined height positions of the two legs 3, 4,
An intermediate joint 14 is provided for positioning the swing fulcrums 12 and 13 with respect to the brace 5 so as to project between the legs. In these intermediate joints 14, the dimension from the inner surface of the ladder-side leg 3 to the swing fulcrum 12, and the dimension from the inner surface of the support frame-side leg 4 to the swing fulcrum 13, are the storage intervals for the brace 5, that is, , Dimension h in the thickness direction of the brace 5
(See FIG. 3).

Therefore, as shown in FIG.
When the base plate 2 is unfolded linearly in the extension direction, the brace 5 can be superimposed on the support frame side leg 4 in a parallel state, and the ladder side leg 3 is They can be superposed in a parallel state, separated by the brace storage interval. That is, the brace 5 and the ladder-side leg 3 can be formed in a flat shape in which the three members, the brace 5 and the ladder-side leg 3, are parallel to each other when the support frame side leg 4 and the base plate 2 are developed.

In order to enable such folding, not only is the amount of protrusion of the upper joint 9 and the intermediate joint 14 specified as described above, but also the distance between the swing support points 8 and 10 is determined. The length obtained by adding the linear distance between the swing fulcrums 10 and 13 to the linear distance, and the linear distance between the swing fulcrums 8 and 12 are:
Needless to say, it is a prerequisite that the length obtained by adding the linear distance between the swing fulcrums 12 and 13 is equal to each other.

The strut member 6 includes a half rod 17 connected to the ladder side leg 3 and a half rod 1 connected to the base plate 2.
8 is provided. As shown in FIGS. 5 and 6, one half rod 18 has an L-shaped cross section (inverted shape) so as to cover the other half rod 17 from above. For this reason, the projecting member 6 has an intermediate portion that can be bent only in one direction (upward in FIG. 2).

From the above, the half rods 17 and 18 are
When the connecting portions are pulled down to form a straight line as the projecting member 6, the straight line state is maintained even if a pressing force in the opposite direction acts between both ends. This is the state of use as the strut member 6, that is,
The inner corners of the base plate 2 and the ladder-side leg 3 are held at a predetermined angle.

Further, the half rods 17 and 18 can be easily turned into a folded state when the connecting portions thereof are pushed upward. This is the stored state as the strut member 6, that is, the state in which the base plate 2 and the ladder side leg 3 can be folded. The strut members 6 are provided in pairs on the left and right sides of the base plate 2 in the same direction, and are connected by a connecting rod 19 which also serves as a fulcrum (FIG. 1). reference).

Incidentally, the base plate 2 is provided with a peripheral wall 2a projecting downward from the outer peripheral portion thereof as shown in FIG. As shown in FIGS. 1 to 3, the swing fulcrum 10 of the support frame side leg 4 with respect to the base plate 2 is provided so as to penetrate the peripheral wall 2a. And this peripheral wall 2
In a, a cutout portion 22 that opens to the side is formed corresponding to a portion where the ladder-side leg 3 is provided, in order to avoid interference with the upper joint 9.

Therefore, even if assembly and folding of the work table 1 are repeated, the upper joint 9 does not come into contact (sliding contact) with the base plate 2, so that the base plate 2 can be prevented from being deformed. Become. For this reason, it is possible to prevent the assembly and folding of the work table 1 from becoming difficult due to deformation of the peripheral wall of the base plate 2 and the upper joint 9. The work table 1 having such a configuration can be deformed between the assembled state shown in FIGS. 1 and 2 and the folded state shown in FIG. 3 as described above. 4, brace 5,
The three ladder-side legs 3 can be formed in a flat shape parallel to each other.

In the assembled state as the work table 1, the inner corners of the base plate 2 and the ladder-side leg 3 are held at a predetermined angle by the strut members 6, so that the assembled state is maintained. As shown in FIG. 8, it can be moved obliquely by the moving roller 7. By the way, the present invention is not limited to the above embodiments.

For example, FIG. 9 shows a second embodiment of the work table 1 according to the present invention. In the work table 1 of the second embodiment, an upper joint is provided at the upper end of the ladder side leg 3. 9 (see FIG. 2), an upper joint 25 is provided for the base plate 2 so that a swing fulcrum 8 between the base plate 2 and the ladder-side leg 3 is provided.
Are provided so as to protrude from the base plate 2 below the ladder-side leg 3.

In the upper joint 25, the dimension from the lower surface of the base plate 2 to the pivot 8 is formed corresponding to the storage interval for the brace 5, that is, the dimension h in the thickness direction of the brace 5. Also, at this time, the length obtained by adding the linear distance between the rocking fulcrums 10 and 13 to the linear distance between the rocking fulcrums 8 and 10 and the linear distance between the rocking fulcrums 8 and 12 It is a prerequisite that the length obtained by adding the linear distance between the swing fulcrums 12 and 13 is equal to each other.

In the second embodiment, the intermediate joint 14 is located at a predetermined height of the ladder-side leg 3 and the support frame-side leg 4.
Instead of providing (see FIG. 2), an intermediate joint 26 having a bending length equivalent to that of the intermediate joint 14 is provided on both ends of the brace 5 in an upward direction and a downward direction, respectively.
The connection between the ladder-side leg 3 and the base plate 2 is as follows.
As shown in FIG. 10, an upper joint 28 provided at the upper end of the ladder-side leg 3 and an upper joint 29 provided on the base plate 2 cooperate to ensure a predetermined dimension (storage interval for the brace 5). It is also possible.

FIG. 11 shows a third embodiment of the work table 1 according to the present invention. In this third embodiment, both legs 3 and 4 are symmetrical with respect to the center of the base plate 2. It is provided with an inclination. Therefore, it is also possible to form both legs 3 and 4 into a ladder configuration. The strut member 6 can be provided at an inner corner between the support frame side leg 4 and the base plate 2.

[0029]

As is apparent from the above description, the present invention
According to the framework, it is formed in a frame structure extending in the width direction of the legs
With the brace stowed between the legs parallel to each other
The work table can be folded in
Obtain a rigid workbench with a compact form
Can be .

If a projecting member is provided at the inner corner between the base plate and one of the legs (claim 3), the work table can be moved in the assembled state. The position can be changed quickly and easily without interrupting the work.

By forming a notch in the base plate to avoid interference with the upper joint (claim 4), the base plate can be prevented from being deformed by contact with the upper joint. It is possible to prevent the assembling and folding of the worktable from becoming difficult due to the deformation of the base plate.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a worktable according to the present invention.

FIG. 2 is a side view of the first embodiment in an assembled state.

FIG. 3 is a side view of the first embodiment in a folded state.

FIG. 4 is a view taken in the direction of arrows AA in FIG. 2;

FIG. 5 is an enlarged view taken along line BB of FIG. 2;

FIG. 6 is an enlarged sectional view taken along line CC of FIG. 5;

FIG. 7 is a perspective view showing the vicinity of the base plate in the first embodiment in a state of being folded.

FIG. 8 is a side view illustrating an example of a situation in which the workbench of the first embodiment is moved.

FIG. 9 is a side view showing a second embodiment of the worktable according to the present invention.

10A and 10B show another embodiment of a connection portion between the base plate and one leg, wherein FIG. 10A shows an assembled state,
(B) is a folded state.

FIG. 11 is a side view showing a third embodiment of a worktable according to the present invention.

FIG. 12 is a perspective view showing a conventional work table.

FIG. 13 is a side view showing the work table of FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 work table 2 base plate 3 leg (ladder side) 4 leg (support frame side) 5 brace 6 brace member 8 swing support point between ladder side leg and base plate 9 upper joint 12 ladder side leg and brace 13 of the support frame side leg and the brace 14 Intermediate joint 22 Notch

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E06C 1/393-1/397

Claims (4)

(57) [Claims] 1. A base plate (2), its both sides of該台plate (2)
Respectively swingably provided is one of the leg (3) and the other
The leg (4), and a brace (5) which is provided swingably connected allowed to each leg (3, 4) at both ends between the both legs (3,4), the other To the leg (4)
The base plate (2) is extended linearly in the direction of extension of
So that the legs (3, 4) are parallel to each other
In a worktable that can be folded , the brace (5) extends in the width direction of the legs (3, 4).
The two legs (3, 4) , which are formed in a frame structure, and which are folded parallel to each other.
Each other is only the storage interval of the brace (5) of the frame structure
The swinging fulcrum (8) with respect to the base plate (2) so as to be separated
At a position protruding toward the other leg (4).
A work table, wherein a joint (9) is provided at an upper end of the one leg (3) . Wherein said a predetermined height position of the two legs (3, 4), a brace (5) swing fulcrum (12, 13) for projecting the relative direction inside the two legs (3,4) An intermediate joint (14) having a position is provided, and a protrusion amount of the upper joint (9) is a thickness of the brace (5).
And the protrusion amount of the intermediate joint (14) is equal to the thickness of the brace (5).
2. The work table according to claim 1, wherein the work table is set so as to correspond to about half of the direction dimension (h) . 3. Both ends are pivotally connected to inner corners of the base plate (2) and one leg (3) with respect to the base plate (2) and the leg (3), The workbench according to claim 1 or 2, further comprising a projecting member (6) whose middle part is bendable only in one direction. 4. In order to avoid interference with the upper joint (9), a portion of the base plate (2) where the leg (3) having the upper joint (9) at the upper end is provided. 4. The worktable according to claim 2, wherein a notch (22) that opens at least laterally is formed.