KR20090000735U - Workbench Where The Level Control Is Possible And Level Control System Of The Workbench - Google Patents

Abstract

Disclosed is a workbench including a pair of support frames hinged on both sides of a rectangular scaffold and having a hollow frame, and a connection frame inserted into the support frame and slidably moved, wherein the support frame includes: Through-holes formed on one side; A catching hole communicating with the through hole and formed in the longitudinal direction of the connecting frame; A fixing protrusion including a fixing part inserted into the through hole, a coupling part integrally connected to the fixing part, and a support part formed in parallel with the fixing part at the center of the coupling part; A bracket which surrounds the fixing protrusion and is integrally coupled to the support frame, wherein the support part is penetrated; A spring surrounding the outer circumferential surface of the support portion between the bracket and the coupling portion; It relates to a height adjustable device and a height adjustable workbench configured including; a fixed lever hinged at the end of the support portion projecting through the upper portion of the bracket.

Therefore, not only is easy to store and transport, but also facilitates the operability to adjust the height of the work table, while increasing the support force of the support force of the frame, while improving the coupling force of the fixing projection and the support frame and the connecting frame.

Height adjustment, workbench, scaffolding, support frame, connecting frame, fixing protrusion, fixing lever

Description

Workbench Where The Level Control Is Possible And Level Control System Of The Workbench}

The present invention relates to a worktable with height adjustment.

In more detail, the height of the workbench is easily adjusted by the fixing means using the lever method, and the gap between the support frame and the connecting frame supporting the scaffold is improved to improve the coupling force between the two frames, and the support force of the supporting frame and the connecting frame. The present invention relates to a height adjustable workbench and a height adjusting device for reinforcing steel, making it easy to operate and improving work efficiency.

In general, in order to replace the fluorescent lamps provided on the ceiling in the home or office, or to replace a separate facility on the ceiling to work on a ladder to climb or use a chair.

For example, if you are papering the room and the ceiling, the work is very inconvenient with only a narrow chair or ladder.

The workbench is mainly used for the height work such as indoor and outdoor work of the building.

Workbench is typically made of a constant length along the transverse direction has a base plate supported on both sides of the lower portion as a leg member, the leg member is made of a structure in which the support post is fixed in a diagonal direction for reinforcing the support force.

Such a workbench is not only able to adjust the height of the support plate freely in various places of height work, but also raises the use of a separate support plate on the support plate of the workbench to reduce the efficiency of the work, and can not escape from the risk of safety accidents. There is this.

Accordingly, as shown in Republic of Korea Utility Model Publication No. 20-0299268, a rectangular plate, a leg extending downwardly on the plate, a plurality of through-holes formed at regular intervals on the leg, and slidable under the leg The connection leg is connected to the installation, it is composed of a fixing means for fixing the coupling holes installed at the same interval as the through hole in the connection leg.

Such a conventional height-variable work platform removes the bolts fixing the connecting leg and the leg and then moves the connecting leg by the height to be separated by adjusting the connecting leg and the leg.

Then, move the connecting leg so that the through hole of the leg and the connecting hole of the connecting leg coincide with each other, and then insert the bolt and engage with the nut to fix the connecting leg and leg so that the height of the connecting leg and leg is adjusted. The height of the workbench will be adjusted to match.

Height-variable worktable according to the prior art has a problem in that the work efficiency for the worktable installation and height adjustment by increasing the inconvenience to work for height adjustment.

In other words, in order to vary the height of the workbench, there is a difficulty in the task of passing through the bolt while keeping the coupling hole and the through hole communicating.

In particular, if the height is changed while the work bench is installed and installed, the worker's work load is reduced because the worker supports the load of the workbench and at the same time, the workability of matching the through-hole and the coupling hole is matched and the work of bolting is not fine. There was a problem in decreasing the efficiency in the height adjustment work of the workbench to increase.

The present invention created to solve this problem is to facilitate the operability for adjusting the height of the worktable by combining or separating the support frame and the connection frame by the operation of the fixing lever of the fixing protrusion formed with a pair of fixing parts.

In addition, the fixing portion of the fixing protrusion is formed to narrow the diameter toward the through hole of the support frame and the engaging hole of the connection frame to improve the coupling force of the support frame and the connection frame and to increase the support force of the scaffold by the two frames.

In addition, the through-hole of the support frame and the engaging hole of the connecting frame is to improve the adhesion between the fixing projection and the support frame and the connection frame by forming a rib protruding to the opposite side into which the fixing portion is inserted through the burring operation.

In addition, it is to facilitate the storage and transport by folding the scaffold.

The present invention for achieving the above object is a workbench including a pair of support frames hinged to be folded at both sides of the rectangular scaffold and the inside of the hollow tubular body, and a connecting frame inserted into the support frame and slide-moved In the through-hole formed on one side of the support frame; A catching hole communicating with the through hole and formed in the longitudinal direction of the connecting frame; A fixing protrusion including a fixing part inserted into the through hole, a coupling part integrally connected to the fixing part, and a support part formed in parallel with the fixing part at the center of the coupling part; A bracket which surrounds the fixing protrusion and is integrally coupled to the support frame, wherein the support part is penetrated; A spring surrounding the outer circumferential surface of the support portion between the bracket and the coupling portion; It is achieved by providing a height adjustment device for a workbench configured including; a fixing lever hinged at the end of the support portion projecting through the upper portion of the bracket.

In this case, the fixing part of the fixing protrusion is narrowed in diameter toward the through hole and the locking hole, characterized in that the close contact with the through-hole and the locking hole.

At this time, the locking hole is formed by the engaging rib protruding along the edge by the burring, the through hole is characterized in that the through rib protruding along the edge by the burring.

The present invention for achieving the above object is a rectangular scaffold; A pair of support frames coupled to both sides of the scaffold so as to be folded by a rotating shaft and having a hollow tube and having a through hole formed at one side thereof; A first link, one end of which links to the scaffold, a second link of which one end links to the support frame, a link axis of rotation linking the first and second links, and a first link and a second link. Link portion consisting of a fixed piece formed on any one top or bottom; A multi-stage horizontal frame installed in a horizontal direction in a fixing hole formed between the pair of support frames; A connection frame inserted into the support frame and slidably moved and communicating with the through hole to form a plurality of engaging holes along a length direction; A fixing protrusion including a fixing part inserted into the through hole, a coupling part integrally connected to the fixing part, and a support part formed in parallel with the fixing part at the center of the coupling part; Brackets integrally coupled to the support frame while wrapping the fixing projections; A spring surrounding the outer circumferential surface of the support portion between the bracket and the coupling portion; It is achieved by providing a height-adjustable worktable comprising a; fixed lever hinged at the end of the support portion projecting through the upper portion of the bracket.

According to the worktable of the present invention and the height adjustment device of the workbench as described above, the fixing projection formed with a pair of fixing portions combines or separates the support frame and the connecting frame by the operation of the fixing lever, There is an effect of facilitating the operability for height adjustment.

In addition, the fixing portion of the fixing projection is formed to narrow the diameter toward the through hole of the support frame and the engaging hole of the connection frame, thereby improving the coupling force between the support frame and the connection frame and increase the support force of the support frame and the connection frame. have.

In addition, the through-hole of the support frame and the engaging hole of the connecting frame is formed by protruding the rib to the opposite side into which the fixing portion is inserted through the burring operation, thereby further improving the coupling force of the fixing projection and the support frame and the connecting frame.

In addition, since the scaffold is separated and folded in two and the scaffold and the support frame can be folded, there is an effect of facilitating storage and transport.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a work table according to an embodiment of the present invention.

Referring to FIG. 1, the work bench has a rectangular footrest 10 formed thereon, and a pair of support frames 20 are foldably coupled around the rotation shaft 26 to both sides of the footrest 10.

And both ends of the link portion 50 is linked to the footrest 10 and the support frame 20 to limit the folding angle (a) between the footrest 10 and the support frame 20 to support the frame 20 (10) to be stably supported and fixed.

Although not shown, the scaffold 10 may be separated from the center and folded by hinge coupling.

The support frame 20 is made of a hollow tube inside.

By forming the bent portion 22 in the upper portion of the pair of support frames 20, the interval between the pair of support frames 20 becomes wider toward the lower end of the support frame 20.

Then, the worktable can be installed more stably.

Fixing holes 24 (see FIG. 3B) are formed in the pair of support frames 20 so that the horizontal frame 40 can be installed in multiple stages in the horizontal direction.

Horizontal frame 40 allows the operator to easily move up and down on the footrest, and reinforces the supporting force of the support frame.

Here, the connection frame 30 is inserted into the lower portion of the support frame 20 to slide.

The connecting frame 30 slides along the support frame 20 to adjust the height of the footrest 10.

At this time, one side of the support frame 20 is provided with a fixing means 100 for preventing the slide movement of the connection frame 30 to fix the connection frame 30 to the support frame 20.

2A and 2B are views illustrating a state of a link unit when a work table is folded according to an embodiment of the present invention.

The link unit 50 is divided into a first link 51 which is linked to the footrest 10, and a second link 52 which is linked to the support frame 20, and the first link 51 is connected by the link rotation shaft 53. The link 51 and the second link 52 are link coupled.

Then, as the footrest 10 and the support frame 20 are folded, the first link 51 and the second link 52 rotate about the link rotation shaft 53.

Here, the fixing piece 54 is formed at the upper end or the lower end of any one of the first link 51 and the second link 52.

When the work piece is folded as shown in FIG. 2A, the fixing piece 54 prevents the first link 51 and the second link 52 from interfering with the rotation about the link rotation shaft 53.

In addition, the fixing piece 54 prevents the first link 51 and the second link 52 from rotating about the link rotation shaft 53 when the worktable is unfolded as shown in FIG. 2B. The footrest 10 can be stably supported and fixed.

In other words, the folding angle of the footrest 10 and the support frame 20 by the link portion 50 formed of the first link 51, the second link 52, the link rotation shaft 53, and the fixing piece 54. (a) is limited, and the first link 51 and the second link 52 are fixed by the fixing piece 54 so that the support frame 20 stably supports and secures the scaffold 10.

In this case, it is advantageous that the angle b formed by the first link 51 and the second link 52 not exceed 180 degrees.

Figure 3a is a perspective view showing a frame of a work table according to an embodiment of the present invention, Figure 3b is an exploded perspective view of Figure 3a.

3A and 3B, through holes 21 are formed in the support frame 20 to fix the support frame 20 and the connection frame 30 which is slid.

In addition, a plurality of engaging holes 31 are formed in the connecting frame 30 along the longitudinal direction in communication with the through holes 21.

Here, the fixing means 100 which can be inserted into the engaging hole 31 of the connecting frame 30 while being inserted into the through hole 21 of the support frame 20 to the front of the through hole 21 of the support frame 20 is provided. Is installed.

The fixing means 100 is divided into a fixing protrusion 110 and the bracket 120, and the spring 130 and the fixing lever 140.

The fixing protrusion 110 may include a fixing portion 111 inserted into the through hole 21, a coupling portion 113 integrally connected to the fixing portion 111, and a fixing portion 111 at the center of the coupling portion 113. It consists of a support portion 115 formed in parallel with.

Here, when the fixing part 111 of the fixing protrusion 110 is formed in plural, the supporting frame 20 and the connecting frame 30 are fixed at two points so that the fixing frame 111 is one of the supporting frame 20. ) And the coupling frame 30 has an advantage of improving the coupling force.

The bracket 120 is integrally coupled to the support frame 20 while surrounding the fixing protrusion 110, and a support hole 121 through which the support part 115 penetrates is formed thereon.

The bracket 120 is advantageously coupled to the support frame 20 in a "c" shape.

The spring 130 is installed to surround the outer circumferential surface of the support 115 between the coupling portion 113 and the bracket 120.

The fixing lever 140 is hinged to the end of the support portion 115 protruding through the upper portion of the bracket 120.

The fixed lever 140 is divided into a handle part 141 and a seating part 143 around the hinge shaft 145.

Then, the worker using the handle portion 141 can operate the fixing lever 140.

The seating portion 143 is formed long enough so that when the fixing lever is operated, the fixing portion 111 can be easily inserted into the catching hole 31 while being inserted into the through hole 21, and the round surface at the end thereof. 144a and a seating surface 144b are formed.

With reference to the accompanying Figures 4a to 4c will be described for the height adjustment method of the working table according to an embodiment of the present invention.

Figures 4a to 4c is an operating state diagram for height adjustment of the work bench according to an embodiment of the present invention.

As shown in FIG. 4A, the connecting frame 30 is inserted into the support frame 20 and the fixing part 111 of the fixing protrusion 110 is inserted into the through hole 21 and the engaging hole 31. It is.

At this time, the spring 130 is in a state of maximum extension between the coupling portion 113 of the bracket 120 and the fixing protrusion 110.

Then, the fixing part 111 of the fixing protrusion 110 may be inserted into the through hole 21 and the locking hole 31 by the elasticity of the spring 130.

When pulling the handle portion 141 of the fixing lever 140 as shown in Figure 4b the round surface (144a) formed on the seating portion 143 of the fixing lever 140 is clouded from the upper surface of the bracket fixed lever The support portion 115 of the 140 and the fixing protrusion 110 form a straight line, and the seating surface 144b is seated on the upper surface of the bracket 120 to fix the fixing lever 140.

At this time, the fixing part 111 of the fixing protrusion 110 is driven out of the locking hole 31 by the length of the seating part 143, the spring 130 is contracted.

Then, the connecting frame 30 is movable in the slide of the support frame 20, the operator can adjust the connecting frame 30 according to the working conditions.

Here, the connecting frame 30 is a guide groove 35 along the longitudinal direction so that the fixing part 111 of the fixing protrusion 110 protruding inside the support frame 20 does not interfere with the slide movement of the connecting frame 30. Is formed, it is preferable that the engaging hole 31 is formed along the guide groove (35).

After adjusting the height of the work bench, the through hole 21 and the catching hole 31 are matched, and then the handle part 141 of the fixed lever 140 is returned to its original position as shown in FIG. 4A.

Then, as shown in Figure 4c by the elasticity of the spring 130, the fixing portion 111 of the fixing protrusion 110 is inserted into close contact with the through-hole 21 and the engaging hole 31 and the slide of the connecting frame 30 By preventing movement, the support frame 20 and the connection frame 30 are fixedly coupled.

Even though the through hole 21 and the catching hole 31 do not coincide with each other, when the connecting frame 30 is slightly moved after the fixing lever 140 is operated, the through hole 21 and the catching hole 31 coincide with each other. The fixing part 111 is inserted into and closely contacted with the through hole 21 and the engaging hole 31 by the elasticity of the spring 130.

4A and 4C, since the fixing part 111 of the fixing protrusion 110 is formed in a conical shape so that the diameter thereof becomes narrow toward the through hole 21 and the locking hole 31, the fixing part 111 is a through hole ( 21) and the fastening hole 31 can be easily inserted and sufficiently close.

Then, the height of the operation is easy, the coupling force of the support frame 20 and the connection frame 30 by the fixing portion 111 is increased to minimize the flow of the support frame 20 and the connection frame 30, the work force of the workbench Reinforces.

In addition, the catching hole 31 forms a catching rib 33 at the rear surface of the catching hole 31 through burring, thereby widening the contact area between the fixing part 111 and the catching hole 31 and improving adhesion. Let it be.

Likewise, the through hole 21 also forms a through rib 23 to the rear surface of the through hole 21 through burring, thereby widening the contact area between the fixing part 111 and the through hole 21 and improving adhesion. give.

Then, the support frame 20 and the connection frame 30 are more easily fixed by the locking ribs 33 and the through ribs 23, and the support force of the work bench may be further improved.

1 is a perspective view showing a work table according to an embodiment of the present invention.

2a and 2b is a view showing a state of the link unit when the work table is folded according to an embodiment of the present invention.

Figure 3a is a perspective view showing a frame of the work table according to an embodiment of the present invention.

3B is an exploded perspective view of FIG. 3A.

Figure 4a to 4c is an operating state diagram for height adjustment of the working table according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: scaffold 20: support frame 21: through hole

22: bent portion 23: through rib 24: fixing hole

26: rotating shaft 30: connecting frame 31: locking hole

33: jam rib 35: guide groove 40: horizontal frame

50: link portion 51: first link 52: second link

53: link axis 54: fixed piece

100: fixing means 110: fixing protrusion 111: fixing part

113: engaging portion 115: support portion 120: bracket

121: support hole 130: spring 140: fixed lever

141: handle portion 143: seating portion 144a: round surface

144b: seating surface 145: hinge axis

Claims (4)

In the workbench comprising a pair of support frames hinged on both sides of the rectangular scaffold and the inside of the hollow tubular body, and a connecting frame inserted into the support frame and slidably moved, A through hole formed in one side of the support frame; A catching hole communicating with the through hole and formed in the longitudinal direction of the connecting frame; A fixing protrusion including a fixing part inserted into the through hole, a coupling part integrally connected to the fixing part, and a support part formed in parallel with the fixing part at the center of the coupling part; A bracket which surrounds the fixing protrusion and is integrally coupled to the support frame, wherein the support part is penetrated; A spring surrounding the outer circumferential surface of the support portion between the bracket and the coupling portion; And a fixed lever hinged at the end of the support portion projecting through the upper portion of the bracket. The method of claim 1, The fixing part of the fixing protrusion is narrowed in diameter toward the through hole and the engaging hole height adjustment device of the worktable, characterized in that the close contact with the through-hole and the engaging hole. The method of claim 2, The locking hole is a locking rib protruding formed along the edge by a burring, the through hole is a height adjusting device of the work platform, characterized in that the through rib is formed protruding along the edge by a burring. Rectangular scaffolding; A pair of support frames coupled to both sides of the scaffold so as to be folded by a rotating shaft and having a hollow tube and having a through hole formed at one side thereof; A first link, one end of which links to the scaffold, a second link of which one end of the support frame is coupled to the link frame, a link rotation shaft that links the first link and the second link, and a first link and a second link. Link portion consisting of a fixed piece formed on the top or bottom of any one; A multi-stage horizontal frame installed in a horizontal direction in a fixing hole formed between the pair of support frames; A connection frame inserted into the support frame and slidably moved and communicating with the through hole to form a plurality of engaging holes along a length direction; A fixing protrusion including a fixing part inserted into the through hole, a coupling part integrally connected to the fixing part, and a support part formed in parallel with the fixing part at the center of the coupling part; Brackets integrally coupled to the support frame while wrapping the fixing projections; A spring surrounding the outer circumferential surface of the support portion between the bracket and the coupling portion; And a fixed lever hinged at the end of the support portion projecting through the upper portion of the bracket.

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