KR20060057178A - Working stand collapsible - Google Patents

Abstract

The present invention relates to a folding workbench, the object of which can be installed in a general workshop, especially on a railroad track and is easily folded with a small number of personnel to enter other process vehicles during maintenance work in the subway yard to the outside of the railroad track. It is to provide a folding worktable that is easy to move and store by having a folding bottom plate that is folded in a hinge form so as to evacuate.

The present invention for achieving the above object is a pair of struts having a predetermined length in parallel with each other to maintain a predetermined distance in front of the struts connected by a plurality of connecting bars, a pair of struts having a predetermined length in parallel with each other Both ends are rotated at one connection bar selected from a plurality of connecting bars provided by the plurality of connecting bars and spaced apart from the front support part to maintain a predetermined distance, and the plurality of connection bars provided in the front support part and the rear support part. Regarding the folding worktable, which is connected to each other and is composed of a bottom plate configured to fold and unfold in a hinge structure by a rotating shaft, and a horizontal brace connecting and fixing the props of the front and rear supports. It is to the technical point.

Folding Work Platform, Scaffolding, Subway Tunnel, Folding Aid

Description

Folding stand collapsible             

1 is an exemplary view showing a folding workbench of the present invention,

Figure 2 is an exemplary view showing a state in which the roller unit is installed when the folding worktable of the present invention is located at the lowest end,

Figure 3 is an exemplary view showing in detail the roller portion of the present invention,

Figure 4 is an exemplary view showing a state in which the handrail is installed when the folding worktable of the present invention is located at the top;

5 is a detailed view showing a horizontal brace of the present invention,

Figure 6 is an exemplary view showing a state in which the anti-falling fixing bracket and the moving wheel is installed on the folding worktable located at the bottom of the present invention,

Figure 7 is an exemplary view showing a state installed by bending the bottom plate of the present invention upwards,

8 is an exemplary view showing a state in which the folding worktable of the present invention is stacked in multiple stages;

9 is an exemplary view showing a folded state of the workbench of the present invention,

<Description of the symbols for the main parts of the drawings>

(10): Folding work bench (11): Forward holding part

(12): rear holding part (13): prop

14: bottom plate 15: hinge structure

(16): axis of rotation (17): connecting bar

(18): hole (19): wire rope

(20): fixing means (21): connecting member

(22): fitting groove (23): fitting

(30): folding auxiliary means 31: roller

(32): main roller (33): bracket

(34): Ratchet Gear (35): Handle

(36): upper roller (37): lower roller

(38): steel wire (40): horizontal brace

(41): connecting line (42): horizontal bracing fixture

(43): horizontal brace release (44): horizontal bar

(50): handrail (51): multistage handrail

52: ladder 53: wheels

(60): Anti-falling fixing bracket

The present invention relates to a folding workbench, and more specifically, using a folding workbench having a folding bottom plate to stack the multi-stage to suit the required working height and when dismantling or moving the bottom plate with a small number of people quickly dismantle and The present invention relates to a folding worktable capable of moving, particularly folding and moving at a high speed with respect to a vehicle moving on a railroad inside a subway tunnel, and installing and moving with a small number of personnel even in a general workshop.

Scaffolding commonly used in the work site is installed in a frame structure using a steel pipe or a section steel, it is used as a workbench by installing a footrest with a fastening ring on the top. In addition, the above-mentioned scaffold has a structure of a fixed frame and can be laminated and made high.

Such scaffolding is widely used in various fields such as aerial work of general construction site and various aerial work (outer wall plastering and waterproofing work or washing of inner and outer walls, wall paper work and ceiling wiring work for painting interior walls).

In particular, in the case of repair, painting, and washing work inside the subway tunnel, the scaffold is installed on the railway side and then the above work is performed. Move outside of the tracks and evacuate workers. However, the conventional scaffolding has a problem in that work efficiency decreases due to a considerable amount of manpower and time loss in disassembling and assembling because the frame structure is constructed by interconnecting and assembling the frame structure.

In addition, when the scaffold is installed and used in multiple stages, the scaffold must be dismantled according to the time when the work vehicle comes, and there are many problems of safety accidents caused by the worker jumping from the high position to the ground or urgently dismantled.

In addition, since the movement of the work vehicle is slowed in the subway tunnel, the work of other working groups is also slowed, and there is a problem that the overall work efficiency inside the subway tunnel is reduced.

In addition, in the general workplace, the existing workbench is heavy and requires much time and manpower for assembly and disassembly, which wastes time and manpower during installation and movement, and takes up a lot of space when stored without dismantling.

The present invention is created to solve the conventional problems as described above, it is installed on the railway tracks can be easily folded with a small number of personnel to evacuate to the outside of the railway tracks for the entry of other process vehicles during maintenance work in the subway premises. It is also an object of the present invention to provide a folding work bench having a folding bottom plate that is folded in a hinged form to facilitate installation, movement and storage of a work bench with a small number of people in a general workplace.

The present invention for achieving the above object is a state in which a pair of struts having a certain length is in parallel with each other in front of the front struts connected by a plurality of connecting bars and a pair of struts having a certain length in parallel with each other Both ends are connected to one selected from a plurality of connecting bars of the rear support which is connected by a plurality of connecting bars and spaced apart from the front support, and the plurality of connection bars provided in the front support and the rear support. A folding worktable which is rotatably connected and includes a bottom plate configured to be folded and unfolded in a hinge structure by a rotating shaft, and a horizontal brace connecting and fixing the props of the front and rear supports;

A plurality of the folding worktable is stacked in the vertical direction, characterized in that the props of the folding worktable located in the upper and lower parts are fixed by the fixing means.

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

Figure 1 is an exemplary view showing a folding worktable of the present invention, Figure 2 is an exemplary view showing a state in which the roller unit is installed when the folding worktable of the present invention is located at the bottom, Figure 3 is an exemplary view showing in detail the roller part of the present invention 4 is an exemplary view showing a state where a handrail is installed when the folding worktable of the present invention is located at the top, FIG. 5 is a detailed view showing a horizontal brace of the present invention, and FIG. 6 is a folding type located at the bottom of the present invention. As an exemplary diagram showing a state where the fall prevention fixing bracket and the moving wheel are installed on the workbench,

According to the present invention, as the center of the bottom plate 14 is folded by the hinge structure 15, the folding worktable 10, which is easily movable by reducing the volume, is vertically stacked to fit the working height of the workplace to a high working position. It is easy to work with, which improves workability.

The folding worktable 10 supports the vertical load and is supported by a plurality of connecting bars 17 to maintain a predetermined distance in a state in which a pair of struts 13 having a predetermined distance are in parallel with each other. (11) and a pair of struts 13 supporting vertical loads and having a predetermined distance are connected by a plurality of connecting bars 17 to maintain a constant distance in parallel with each other and the front support portion 11 Both ends are rotated at one connection bar 17 selected from a plurality of connection bars 17 provided at the rear support part 12 and the front support part 11 and the rear support part 12 which are installed to be spaced apart from each other. A bottom plate 14, which is connected to be possible and has a central portion configured to be folded and unfolded into the hinge structure 15 by the rotation shaft 16, and the support 13 of the front support portion 11 and the rear support portion 12. Interconnecting the bottom plate 14 made of a removable horizontal brace 40 for fixing not to be folded .

The folding worktable 10 is stacked in a plurality of vertical direction, in which the strut 13 of the folding worktable 10 located in the upper and lower parts is fixed and laminated by the fixing means 20, and the material is made of light such as aluminum. Made of material to minimize weight.

The fixing means 20 is a fitting portion 23 formed at the lower end of the support 13 of the folding worktable 10, and the upper end of the support 13 of the folding worktable 10 so that the fitting portion 23 is fitted. The fitting groove 22 formed in the fitting member consisting of a connecting member for fixing the fitting groove 23 and the fitting groove 22, the fitting of the folding worktable 10 positioned at the upper side when the folding worktable 10 is stacked. Part 23 is fitted into the fitting groove 22 of the folding worktable (10) located on the lower side is fixed to the connection member.

In addition, a wheel 53 is installed at the bottom of the support 13 of the folding worktable 10 so as to easily move, and the wheel 53 has a braking means so that the folding worktable 10 does not move during work. have.

On the other hand, the bottom plate 14 has a plurality of holes 18 are formed to reduce the weight of the folding work platform 10 as a whole.

In addition, the horizontal brace 40 is in the horizontal brace detachment opening 43 is installed in the front support portion, the horizontal brace fixture 42 is installed in the rear support portion, and the horizontal brace fixture 42 It is fixed and made of a horizontal bar 44 that is connected to and detached from the horizontal bracing removal opening (43).

The horizontal brace 40 is connected to the connecting line to the end of the horizontal brace detachable side and the connecting line is connected to the holding line when the folding worktable is connected to the horizontal brace connected to one side separated by the operator By pulling the horizontal brace 40 out of reach of the operator can be installed on the back again.

The present invention as described above in the case of stacking a plurality of folding work platform 10 as shown in Figures 8 and 9 in order for the worker to go up to the high working position of the bottom plate 14 of the top folding work platform 10 It is provided with a folding auxiliary means (30) installed on the uppermost folding worktable (10) and the lowermost folding worktable (10) to be folded and connected to a seamless steel wire (38), wherein the steel wire (38) is at the top. It is connected via the rotating shaft 16 of the folding worktable (10).

The folding auxiliary means 30 is a roller part 31 installed at the corner of the front support part 11 of the lowermost folding worktable 10 through the bracket 33 and the bracket 33 at the uppermost folding worktable 10. It is installed on the upper side of the roller portion 31 in the vertical direction, the lower roller 37 which is located below the bottom plate 14 and the bottom through the bracket 33 on the top folding worktable (10) The upper roller 36 installed on the upper side of the plate, and the roller portion 31, the lower roller 37, the rotating shaft 14, composed of a seamless steel wire 38 connecting the upper roller 36 in sequence. do.

In addition, the upper roller 36, the lower roller 37, the roller portion 31 is preferably installed in a vertical form, the steel wire 38 is the rotation axis 16 of the bottom plate 14 by the frictional force. Rotating the bottom plate 14 should be installed in a tensioned state so that it can be folded upward.

Meanwhile, the roller part 31 is fixed by a bracket 33 installed on the front support part 11, the main roller 32 is wound around the steel wire 38, and a handle is installed on one side thereof, and the main roller Is formed on one side of the (32) is provided with a ratchet gear 34 for adjusting the rotation radius of the main roller (32).

The ratchet gear 34 is installed to prevent the bottom plate 14 from being unfolded by rotating the main roller 32 to one side, folding the bottom plate, and then rotating the main roller 32 in reverse.

As the upper roller 36 and the lower roller 37 have two rollers connected up and down and the steel wire 38 passes between them, the steel wire 38 moves outward of the roller when the bottom plate 14 is folded. Do not let go.

On the other hand, the center plate is wound around the rotating shaft 16 to support the bottom plate 14 so that the bottom plate 14 of the folding worktable 10 is not folded downward, and both ends thereof are fixed to the front support part 11. The wire rope 19 is connected to the support 13 of the rear support 12.

In addition, a plurality of connecting the periphery of the support 13 of the front support portion 11 and the rear support portion 12 of the folding worktable 10 located at the top of the folding worktable 10 to prevent the fall of the worker Handrail 50 is installed, the handrail of the handrail 13 that connects the support 13 of the front support portion 11 and the support 13 of the rear support portion 12 of the handrail 50 is multi-stage to allow mutual adjustment. The bottom plate 14 is folded by the hinge structure 15 with the multi-stage handrail 50 coupled to the multi-stage handrail 50, and the folding work bench 10 is folded to a predetermined width. .

In addition, when the folding worktable 10 is stacked in multiple stages, the side of the front workhold part 11 or the rear support part 12 of the folding worktable 10 so that an operator can work on the uppermost worktable 10. Ladder 52 is installed, and the anti-falling fixing bracket 60 is installed on the support 13 of the front support portion 11 and the rear support portion 12 to prevent the folding worktable 10 from being turned over. The folding worktable 10 is firmly fixed to the ground.

Meanwhile, in the present invention, the bottom plate 14 is bent at an angle of 3 to 5 degrees in the upward direction as shown in FIG. 7 to apply only a small force from the lower side without the folding assisting means 30, thereby providing the uppermost folding work platform 10. Can be folded. At this time, when the inclination angle of the bottom plate 14 is 5 ㅀ or more, there is a risk that the worker falls and falls to the ground while working. In addition, when it is smaller than 3 kPa, the operator puts a force on the lower side so that the folding worktable at the top is not easily folded, which makes the folding work of the present invention difficult.

Hereinafter, the present invention will be described in detail through examples.

Positioning the folding worktable 10 on the railway tunnel of the subway tunnel and connecting the strut 13 of the front support portion 11 and the rear support portion 12 by the horizontal brace 40 by the hinge structure (15) After fixing the bottom plate 14 to be folded is not folded, the repair or improvement of the inside of the tunnel is performed. At this time, when the working place is located high, the post 13 of the folding worktable 10 is fitted up and down through the fixing means 20 so that the operator installs the multi-stage, and then the worker puts the folding worktable 10 at the top. Climb up the ladder 52 to perform the operation.

In this way, while the worker is working, the work vehicle for performing other processes inside the subway tunnel often passes along the railway tracks. At this time, the worker descends to the ground by the ladder 52 installed on the side of the folding worktable front support portion 11 or the rear support portion 12, and removes the horizontal bar 44 from the horizontal brace detachment opening 43. As it comes down to the ground while separating one side of the horizontal brace (40).

When one side of the horizontal bar 44 is separated in this way, the operator separates the ladder 52 and the bottom plate 14 of the folding work bench 10 at the bottom of the folding work benches 10 stacked in multiple stages is folded upward. The front support part 11 and the rear support part 12 are pushed so that the folding worktable 10 is brought into close contact with the front support part 11 and the rear support part 12, and at the same time, the roller part is installed at the lower end. The handle 35 provided on the main roller 32 of the 31 is turned to wind and rotate the steel wire 38.

At this time, since the steel wire 38 is composed of one line without a joint, the lower roller 37, the rotating shaft 16, the upper roller 36, and the main roller 32 continue to rotate around the main roller 32. Done. As the steel wire 38 rotates as described above, the rotating shaft 16 rotates on the tightly tensioned steel wire 38 and ascends upward through the steel wire 38, and the bottom plate 14 is raised as the rotating shaft 16 rises. It is folded upward by the hinge structure (15).

As the bottom plate 14 is folded upward based on the rotation shaft 16, the front support portion 11 and the rear support portion 12 overlap, and the folding worktable 10 is folded. When the folding worktable 10 is folded, the operator moves to the side of the railway for the present invention and then evacuates from the railway.

On the other hand, when the working vehicle passes over the railroad, the present invention is repositioned at the working place, and the lower folding worktable 10 is directly opened by the worker to fix the horizontal bar 44 to the horizontal brace detachment door. 40) is installed, the upper folding worktable 10 is rotated to release the main roller 32 in the opposite direction of the initial rotation direction, the bottom plate is laid out and placed horizontally.

At this time, the worker climbs up the folding worktable 10 at the top of the ladder 52, and pulls the connecting line 41 connected to the horizontal brace 40 to move the horizontal bar 44 to the horizontal brace detachment opening 43. Go up while fixing it.

In addition, the support 13 of the folding worktable 10 is provided with an anti-falling fixing bracket 60 to prevent the fall of the folding worktable 10 to be firmly fixed to the ground.

On the other hand, the present invention can be moved quickly by using the wheels 53 installed on the bottom of the support (13) in the general workshop, it is possible to work safely even when high-rise work through the fall prevention fixing bracket (60).

As described above, the present invention is the folding worktable 10 at the position where the worker's hand touches the ground, the worker pushes the bottom plate 14 directly, and the folding worktable 10 located at the worker's hand does not touch the folding assistant. It is easy to install, disassemble and move as the means of operation is installed inside the subway where the work space and evacuation space are narrow as the means are folded.

In particular, when working in the subway, the car on the rail can be easily folded and moved with a small number of people can increase the work efficiency.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

The effect of the present invention can be expected by the configuration and action as described above, it is possible to fold in the state that the folding worktable is combined in multiple stages without dismantling the folding worktable installed in multiple stages, so that when working inside the subway tunnel It can be easily moved in preparation for a vehicle moving along the road, and the overall weight is light, so it can be moved to a small number of people. Therefore, the work efficiency is improved by quick assembly and disassembly. It is a very useful invention that not only speeds up the overall working speed, but also light weight in general workplaces, and is easy to install and dismantle, move and store, thereby reducing overall manpower and time, thereby improving overall work efficiency.

Claims (9)

A pair of front pillars connected by a plurality of connecting bars to maintain a predetermined distance in a state in which a pair of pillars having a predetermined length are in parallel with each other, A pair of posts having a predetermined length are connected by a plurality of connecting bars to maintain a predetermined distance in parallel with each other, and a rear support part installed to be spaced apart from the front support part; A bottom plate configured to be rotatably connected at both ends to one connection bar selected from a plurality of connection bars provided in the front support part and the rear support part, and to be folded and unfolded in a hinge structure by a rotation shaft; Folding platform according to claim 1, characterized in that the detachable horizontal brace for fixing by connecting the support of the front support and the rear support. The method of claim 1, And a plurality of the folding work benches are stacked in the vertical direction, and the props of the folding work benches positioned in the upper and lower parts are fixed and stacked by the fixing means. The method of claim 2, The fixing means comprises a fitting portion formed at the lower end of the support of the folding worktable, a fitting groove formed at the upper end of the support of the folding worktable, and the connection member for fixing the fitting groove and the fitting portion to be fitted. Folding worktable. The method according to claim 1 or 2, When the multi-stage stacking of the folding workbench is installed on the top folding workbench and the lowest folding workbench to fold the bottom plate of the top folding workbench, and it is a seamless steel wire passing through the rotation axis of the top folding workbench. Folding work table characterized in that it has a folding auxiliary means connected. The method of claim 4, wherein The folding auxiliary means and the roller portion which is installed through the bracket on the front circumferential portion of the lowest folding worktable; A lower roller which is installed on the uppermost folding workbench through a bracket and is positioned below the bottom plate and connected to the roller and the steel wire; The upper roller is installed through the bracket on the upper workbench, located on the upper side of the bottom plate, Folding roller, characterized in that consisting of a seamless steel wire connecting the roller portion, the lower roller, the rotating shaft, the upper roller in sequence. The method of claim 5, The roller unit is fixed by a bracket installed in the front holding portion and the main wire is wound around the steel wire and the handle is installed to one side, Is formed on one side of the main roller folding worktable, characterized in that provided with a ratchet gear for adjusting the rotation radius of the main roller. The method according to claim 1 or 2, Installing a handrail to prevent the fall of the operator by connecting the front holding portion and the rear holding portion of the folding workbench, the handrail for connecting the holding of the front holding portion and the holding portion of the rear holding portion is coupled in multiple stages Folding worktable characterized by having a multi-stage handrail with adjustable spacing. The method according to claim 1 or 2, The folding worktable, characterized in that the ladder is installed vertically to enable the movement of the worker in the front or rear support portion of the folding worktable. The method of claim 1, And a steel wire is wound around the rotating shaft so that the bottom plate of the folding workbench is not folded downward, and both ends of the steel wire are respectively connected to the props of the front support part and the rear support part.

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