JPS62174451A - Working stand - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications TECHNICAL FIELD This invention relates to a workbench.

BACKGROUND OF THE INVENTION Conventional techniques and their problems As a work table, one in which foldable legs are provided at both ends of a scaffolding board is conventionally known.

However, in the case of such a conventional workbench, when storing the scaffolding board with the legs folded, placing the scaffolding board horizontally would require a large space for storage; If you lean it against a wall, etc., it will not be stable. Also,
If you attach wheels to the lower ends of the legs, you can easily move the workbench with the legs open, but you cannot use the wheels to move the workbench with the legs folded. figure,
In particular, when the work table becomes large, it is difficult to move it.

An object of the present invention is to solve the above problems and provide a workbench that is easy to store and move.

Means for Solving the Problems The work platform according to the present invention has a ladder shape with a plurality of upper and lower rungs between a pair of pillars, and a pair of opposing pillars with wheels at the bottom. legs and the upper part of the first leg and the second
a first brace with both ends rotatably connected to the lower part of each brace on the same side of the second leg; a second brace that is rotatably connected and whose central portion is rotatably connected to the central portion of the first brace on the same side; Each brace consists of two long and short parts that are rotatably connected, and a fixing device that fixes these two parts in a straight line. All the braces are arranged so that the vertical relationship between the long and short parts is the same, and the height of the upper brace connection part and the height of the lower brace connection part of all the struts of the leg are They are substantially the same, and are characterized in that the sum of the mutual spacing between the upper and lower brace connecting portions of each company and the length of the short portion of each brace is approximately equal to the length of the long portion of each brace.

Example Fig. 1 shows a working table in use, and this table has a plurality of (for example, five) 41 (10b) (Ilb) located above and below between a pair of pillars (10a) (11a). A pair of opposing legs (101 (11)) forming a ladder shape, and a pair of legs (
10) A total of 4 braces (12013), 2 on each side connecting the sides of (11), and a pair of legs (10) (
11) I (10b) (11b) and one leg (10) (11) glue (10b) (
It consists of two scaffolding boards (14) that are hung vertically on the scaffolding board (Ilb).

The pillars (10a) (11a) of the legs (10) (11) are made of deformed round pipes with a part of the outer periphery flattened, and both ends of the round pipes I (10b) (11b) are attached to this flat surface. They are joined by appropriate means such as welding (see Figure 6). Casters (15) (16) with brakes are attached to the lower ends of the legs (10) (11) (10a) (lla), respectively. In addition, inverted U-shaped round pipe hands F (17) (18) are inserted from above into the pillars (10a) (11a) of each leg (10) (11) so as to be able to slide up and down. Although detailed illustrations are omitted, the columns (10a) (11a) are attached to the top of each company (10a) (lla) by springs.
The column (1
A one-touch stopper (19) (20) is provided with a pin that is held in a position withdrawn from 0a) (11a). The handrails (17) and (18) are provided with multiple holes on the top and bottom, and by entering the pins of the stoppers (19 and 20) into these holes, the Senten (17) and (18) are fixed. Handrail (17) (18) by changing the position
) height can be adjusted. In addition, one pair of legs (10) (11
) corresponds to! 1 (10b) (11b) are at the same height. Also, the columns (10a) (1) of each leg (10) (11)
1a) may be made of an ordinary round pipe.

Two upper and lower brackets l-(21)(
22H23) (24) is fixed. The upper brackets (21) (23) are attached to the second I (10b) from the top (
11b), and the lower brackets (22) (24) are provided at the height of the lowest crosspieces (10b) (llb). and a first brace (12) on the upper bracket (21) of each company (10a) of the first leg (10) and the lower bracket (24) of each company (lla) on the same side of the second leg (11). Both ends of the second leg (1
1) The upper bracket (23) of each company (11a) and the first
Both ends of the second brace (13) are rotatably connected to the lower bracket (22) of each company (1Oa) on the same side of the leg (10) of the second brace (13). Also, the first brace on the same side (
12) and the second brace (13) are rotatably connected at their central parts.

Each brace (12) (13) consists of two rotatably connected long and short parts (12aH12b) (13aH13b).
and these two parts (12a) (12b) (13a)
Fixing device (25) (2) fixing (13b) in a straight line
6). The two parts (12a) (12b) (13a) (13b) of each brace (12) (13) are made of square pipe, and all braces (12) (13) have a long part (12a) (13a) Short part (12b) (13b)
are positioned so that the vertical relationship is the same.

Then, the ends of the short portions (12b) (13b) are connected to the pillars (10
The ends of the long portions (12a) (13a) are connected to the upper brackets (21) (23) of 1 (11), respectively, to the lower bladders (24) (22) of the column (10). There is. In addition, the total length of the braces (12) (13), the length A) of the long parts (12a) (13a) and the length B) of the short parts (12b) (13b) are for all braces (12) (13). Same, each company (10a)
Upper and lower brackets (21) (22) (23) of (11a)
) (24) and the mutual spacing (C) of each brace (12) (1
The length B) of the short parts (12b) and (13b) in 3) is the long part (12) of each brace (12) and (13).
The length of aH12b) is almost equal to Δ) (see Figure 3).

Details of the fixation device (26) of the second brace (13) include:
It is shown in FIGS. 7-9. A short square pipe (27H28) is fitted to the connecting end of the long part (13a) and short part (13b) of the brace (13) in the form of an extension of these, and these square pipes (27) (28 ) No. 1
The tips of the brackets (29) and (30) fixed to the side surfaces are rotatably connected to each other by a connecting pin (31). The long part (13a) and the short part (13b) are
It can rotate between a position where the end faces of the pipes (27, 28) are in contact with each other and form a straight line as shown in FIG. 7, and a position where they are folded almost parallel to each other as shown in FIG. Long part (
13a) on the side wall opposite to the connecting pin (31).
2) is provided.

Hook (33) inside the pipe (28) of the short part (13b)
The proximal end of the hook (33) is rotatably attached by a pin (34), and the tip of the hook (33) protruding from the pipe (28) has an opening (3
2) is integrally formed with a protruding claw (33a) on the opposite side of the connecting pin (31). Short part (
13b) on the inner surface of the side wall on the side of the connecting pin (31).
A compression coil spring (37) is installed between the hook (35) and the recess (36) provided in the hook (33) to bias the hook (33) in the direction of rotation toward the claw (33a). There is. Further, an opening (38) is provided in the side wall of the pipe (28) of the furnace part (13b) opposite to the connecting pin (31), and an L-shaped stopper (39) passing through this opening (38) is provided.
) is rotatably attached to the pipe (28) by a pin (40). The tip of the stopper (39) inside the pipe (28) has a sloped hook receiver for fixing the surface (39).
a) is formed, and the distal end surface of the stopper (39) has a narrow release hook receiving surface (39b). The stopper (39) is connected to the pipe (28) as shown in Fig. 7.
The fixing device has its inner tip rotated toward the long portion (13a), and the release position has the inner end of the pipe (28) rotated toward the furnace portion (13b) as shown in FIG. 8 or 9. Switch and get defeated.

FIG. 7 shows the long part (13a) of the brace (13) and the furnace part (13b) fixed in a straight line.

At this time, the stopper (39) is tilted to the fixed position, the hook (33) is rotated by the spring (37) toward the claw (33a), and the fixing receiver of the stopper (39) is turned to the surface (39a).
). Then, the claw (33a) of the hook (33)
) protrudes outward through the opening (32) of the long portion (13a), so that even if an external force is applied, the long portion (13a)
And the furnace part (13b) will not bend.

The long part (13a) of the brace (13) and the furnace part (13b)
), first push the stopper (39) by hand to the release position. As a result, the surface (39b) of the release receiver of the stopper (39) comes into contact with the hook (33), and being pushed by this, the hook (33) rotates to the opposite side of the claw (33a). For this reason, the claw (33a) has a long portion (13
It is removed from the opening (32) of the pipe (27) in a), and the long portion (13a) and furnace portion (13b) can be bent into the state shown in FIG. 8 to FIG. 9.

The long part (13a) and the furnace part (
When fixing 13b) in a straight line, the state shown in FIG. 9 is changed to the state shown in FIG. 8, and then these are made into a straight line as shown in FIG. Then, by tilting the stopper (39) to the fixed position, the fixing receiver is attached to the hook (33) on the surface (39a).
) and fit the claw (33a) into the opening (32) of the pipe (27) of the long portion (13a).

In addition, when fixing the long part (13a) and the furnace part (13b) in a straight line, the long part (13a) as shown in FIG.
13a) and the furnace part (13b), the stopper (39) is brought down to the fixed position by hand, and the hook (33) is kept in contact with the surface (39a). It is also possible to simply make the long part (13a) and the furnace part (13b) straight. If you do this, the long part (13
When a) and the furnace part (13b) are almost in a straight line, the claw (33a) of the hook (33) hits the side wall where the opening (32) of the pipe (27) of the long part (13a) is located. , the hook (33) is pushed toward the connecting bottle (31) and enters the pipe (27). Then, when the long portion (13a) and the furnace portion (13b) are in a straight line, the claw (33a)
)) fit into the opening, and these are fixed in a straight line.

The configuration of the fixation device (25) of the first brace (12) also includes:
This is the same.

As shown in detail in FIG. 10, the end plates (14a) at both ends of the scaffolding board (14) protrude downward from the bottom surface. The mutual spacing between the inner facing surfaces of these end plates (14a) is from the outside of the crosspiece (10b) of the first leg (10) to the crosspiece (10b) of the second leg (11) in the used state as shown in FIG. 11b) to the outside. In addition, the width of the scaffolding board (14) is 8
(10b) A little smaller than half the length of (11b). As shown in detail in Figures 10 and 11, the scaffolding board (1
4) Two substantially U-shaped metal fittings (41) are rotatably attached to the lower surface of the top plate (14b). The hook is a metal fitting (
41) has a shaft portion (41a) extending outward in a straight line at both ends.
) are integrally formed, and these shaft parts (41a) are connected to the top plate (
14b). Shaft (41a)
A stop arm part (41b) is integrally formed at the tip of the hook, which contacts a part of the top plate (14b) closer to the end than the shaft part (41a) when the metal fitting (41) protrudes from the top plate (14b) at a right angle. has been done. Also, the hook is at the tip (41) of the metal fitting (41).
c) is bent at a right angle on the opposite side to the arm (41b). The latch (41) has a position where the arm (41b) contacts the top plate (14b) and protrudes at right angles, and a tip (41).
c) can be rotated between a position where it contacts a central portion of the reinforcing member (42) on the lower surface of the top plate (14b). therefore,
As shown in FIG.
1c) and the bottom of the scaffolding board (14)! , 1 (10)
(11), the scaffolding board (14) is passed through the crosspiece (10).
) (11) can be hung vertically. In addition, when the scaffolding board (14) is placed horizontally on the floor (43), etc., the lower ends of the end boards (14a) at both ends are placed on the floor (43), as shown by the chain lines in Fig. 10.
Since the metal fitting (41) of the hook rotates upward until it reaches point 43), the scaffold board (14) does not become unstable.

In use, the long section (12a) for all braces (12) (13) as shown in Figures 1 and 3.
(13a) and the short portions (12b) and (13b) are fixed in a straight line, and the pair of legs (10) and (11) are held vertically at a position where the mutual spacing is maximum. And the same height tabs (iib) of these legs (10) (11)
), both ends of two scaffold boards (14) are placed on the board, and the end boards (t4a) at both ends are located outside of 8 (10bH11b) to prevent the scaffold boards (14) from moving or falling. are doing.

In addition, the height of the scaffold board (14) can be changed by changing the position of I (10b) (llb), and the handrail (17) (1
8) Height can be adjusted. In addition, casters (
15H16) allows the work table in use to be easily moved.

When storing the work platform, first install the two scaffolding boards (14).
Remove the crosspieces (10b) (11b) and the metal fittings (41)
Using this, hang it vertically on the inside of the legs (10) and (11) as shown in Figure 11. Next, four braces (12) (13)
The stopper (39) of the fixing device (25) (2G) is moved to the release position, and the long part (12a) (13a) and the short part (
12b) (13b) into a bendable state. Then, connect the two braces (12) (13) to the long part N2a) (
13a) and the short portion (12bH13b), and fold the legs (10), (11) and the brace (12013) from FIG. 4 to the state shown in FIG. 5. After folding the workbench in this way, the pair of legs (10) and (11)
10b) (11b) Secure the comrades with a belt (as shown) and store them in an appropriate place. At this time, legs (10) (1
1) as well as the long portions (12) of the braces (12) (13)
a) Since there is the above-mentioned dimensional relationship between (13a) and the short portions (12b) and (13b), 1.
The pairs of legs (10) (11) can be held vertically in a position where their mutual spacing is minimal. Therefore, the work table can be easily moved using the casters (15) and (16) and stored in an upright position with good stability. Therefore, a large space is not required to store the work table.

To put the workbench in the retracted state into use, perform the operation opposite to the above.

Effects of the Invention Since the work table according to the present invention has the above-mentioned configuration,
When folded, hold the pair of legs vertically,
Scaffolding boards can be hung vertically on this. Therefore, when the work table is folded, it can be easily moved using wheels, and it can also be stored vertically and stably in a narrow space. Therefore, even if the workbench becomes large, it is easy to store and move.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the work table in use, FIG. 2 is a perspective view of the work table in the middle of folding, and FIG. 3 is a perspective view of the work table in use. Side view, Figure 4 is a side view of the work table in the middle of folding, Figure 5 is a side view of the work table in a completely folded state, and Figure 6 shows the joining part of the leg post and crosspiece. A horizontal sectional view, Figure 7 is a side view of the fixing device when the long part of the brace and the furnace part are fixed in a straight line, and Figure 8 is a side view of the fixing device when the long part of the brace and the furnace part are slightly bent. Fig. 9 is a side view of the fixing device when the long part of the brace and the furnace part are completely bent; Fig. 10 is a vertical cross-sectional view of the scaffolding board with the middle omitted; Fig. 11 is the scaffolding. The plate hanger is a perspective view showing the metal part. (10) (11)... Legs, (10a) (lla),,
, pillar, (10b) (11b)... toughness, (12) (13
)... Brace, (12a) (13a)... Long part, (12b) (13b)... Furnace part, (14)...
Scaffolding board, (15) (16)...casters (wheels),
(25) (26)...Fixing device. that's all

Claims (1)

[Claims] It has a ladder shape with a plurality of upper and lower rungs provided between a pair of columns, and a pair of opposing legs with wheels at the bottom, and the upper part of each column of the first leg and the second leg. a first brace rotatably connected at both ends to the lower part of each column on the same side of the leg; and a second brace.
Both ends are rotatably connected to the upper part of each pillar of the first leg and the lower part of each pillar on the same side of the first leg, and the center part is connected to the lower part of each pillar on the same side of the first leg.
a second brace rotatably connected to the center of the brace;
Each brace consists of two long and short parts that are rotatably connected, and a fixing device that fixes these two parts in a straight line. All the braces are arranged so that the vertical relationship between the long and short parts is the same, and the height of the upper brace connection part and the height of the lower brace connection part of all the struts of the leg are A work table characterized in that the mutual spacing between the upper and lower brace connecting portions of each column and the length of the short portion of each brace are approximately equal to the length of the long portion of each brace. .