KR20200002117U - A fall down preventing apparatus of a moving work table - Google Patents

Abstract

The present invention relates to a clamp for fixing a support for preventing the worktable from falling.
The present invention is to be fixed with a clamp 200 for preventing the fall of the support 300 made of a circular cross section outside the leg member 120 of a rectangular cross section supporting the working foot plate 110, the clamp 200, the leg First and second guide grooves 222a and 242a are formed to wrap and fix the outer shape of the member 120 in a face-to-face shape. 2 guide grooves (222b) (242b) and coupling members (220) (240) formed to face each other; A fastener 400 for fixing the coupling members 220 and 240; The coupling members 220 and 240 are slidably coupled to each other in the form of male and female coupling on both sides of the fastener 400 from the inside of the coupling member 220, 240 so that the coupling member 220, 240 is connected to the fastener 400 Rotation control unit 600 for controlling the rotation in the direction opposite to each other around the center; And a restoring spring 700 that surrounds and combines the rotation control device 600 to generate an elastic restoring force when the fastener 400 is tightened and released.
The present invention has the advantage of stably binding the leg member and the support when the clamp for coupling the support for preventing fall to the leg member of the worktable is fixed to the fastener.

Description

A clamp for fixing a support for preventing the work table from falling

The present invention relates to a worktable having a working platform, and more specifically, by providing support for preventing fall of each of the leg members of the worktable having a horizontal working platform to prevent the worktable from falling in advance, and in addition to the leg member The present invention relates to a clamp for fixing the support for preventing the worktable from falling, which allows the worktable to be stably supported on the floor through simple operation even when the height of the unit is variable, as well as to maintain a stable locking state.

In general, in building construction, work at a relatively high place, such as electric facilities on the ceiling or wallpaper work, occurs frequently, and at this time, the worker installs a worktable with a worktable at a certain height from the ground and then lifts the worktable. Stepping and working.

The above-described worktable has a horizontal working platform formed in the middle, and a leg member is provided on both sides of the working platform so as to be erected from the ground. In use, the leg member may be rotated and supported on the ground.

However, in the case of a conventional workbench, which is designed and manufactured with a narrow width, there is a problem that the worktable is inverted to the side when the operator's body tilts to one side. Have been.

In recent years, a number of inventions for preventing fall to solve this problem have been proposed and released.

Looking at the conventional fall prevention device, a fall prevention device has been proposed as Korean Utility Model Registration No. 20-0390431.

This is because a serrated groove is formed in any part of the bracket that is in contact with the inside of the support fixing frame so that the control switch can be seated inside the toothed groove, so that the support object, the bracket, the support fixing frame and the support can be integrally fixed. A fall prevention device that can effectively transmit the bending moment to the side to the ground is provided.

In addition, a fall prevention device for ladders has been proposed as utility model registration No. 20-0455632.

It is fixed to the side of the ladder, a fixing member formed with a sliding means to enable sliding in the longitudinal direction; A sliding member that slides along the sliding means; One end is axially coupled to the sliding member, and the other end is a support bar supported on the ground; One end is axially coupled to one side of the fixing member, and the other end is axially coupled to and supported by the support bar. And a reinforcing linker for reinforcing the supporting force of the bar; and a locker provided on the sliding member and selectively compressing the sliding member to the fixing member to restrict the sliding of the sliding member.

However, in the conventional technology for preventing fall as described above, in most cases, the balance is achieved through separate height adjustment devices on both sides of the post, and the installation cost is expensive, and both height adjustment devices are simultaneously used for height adjustment. There has been a hassle in the use of such as having to be adjusted.

KR Patent Publication No. 10-2010-0024818 Publication date March 08, 2010 KR Utility Model Registration No. 20-0390431 Announcement Date July 25, 2005 KR Utility Model Registration No. 20-0455632 Announcement Date September 16, 2011 KR Patent Registration No. 10-0982624 Announcement Date September 15, 2010

Thus, the present invention was devised to solve the above problems,

The purpose of this design is,

The clamp that connects the support for preventing fall to the leg member of the worktable stably binds the leg member and the support when the fastener is fixed, and at the same time, it enables the stable locking state without twisting even when the rotational force centered around the fastener along with the binding force is generated. It is to provide a clamp for fixing the support to prevent the worktable from falling.

In order to achieve the above object, the present invention,

In a worktable comprising a working platform and leg members provided on both sides of the working platform so that an operator can step and work at a certain height from the ground,

Each leg member has a rectangular cross-section in shape, and a fall prevention support formed of a circular cross-section on one side thereof is fixed to the leg member through a clamp, respectively;

The clamp,

The first and second guide grooves are formed to face each other so as to wrap and fix the outer shape of the leg member in a shape facing each other so that the outer shape of the leg member can be slid up and down on the corresponding side, and the support stand on the other side corresponding to each other A coupling member having arc-shaped first and second guide grooves facing each other so as to surround and fix it; A fastener positioned in the middle of the coupling member and screwed when the nut is locked so that the coupling member fixes the support together with the leg member; A rotation control unit that is slidably coupled to each other in a male and female coupling form on both sides of the fastener so that the coupling member is not rotated in an opposite direction around the fastener; It may be configured to include a restoring spring that surrounds the rotation control unit and generates an elastic restoring force when the fastener is loosened and tightened.

In addition, a protruding line for preventing slipping may be arranged on inner walls of the first and second guide grooves.

In addition, the female guide and the male guide, which are coupled in a corresponding state, may be coupled to each other at different positions on both sides of the fastener as the center.

The present invention has the advantage of stably binding the leg member and the support when the clamp for coupling the support for preventing fall to the leg member of the worktable is fixed to the fastener.

In addition, there is an advantage of preventing loosening of the fastener by controlling the relative motion between the coupling members through the rotation control unit when the vibration occurs due to shaking or the like in the clamp lock state.

In addition, as the support is fixed by the fastening and loosening of the fastener, there is an advantage of easy installation and use by the operator.

1 is a perspective view of a state in which a clamp according to the present invention is installed on a worktable,
Figure 2 is an enlarged view of the main part in Figure 1,
Figure 3 is an exploded perspective view of Figure 2,
4 is an exploded perspective view of the clamp according to the present invention,
Figure 5 is a cross-sectional view of the combined state of Figure 4,
Figure 6 is a plan view of the main portion of Figure 5;

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings, and when it is determined that related known technologies may obscure the gist of the present invention in describing the present invention, a detailed description thereof will be omitted. do. And for the purpose of the specification of the present invention, the same reference numerals in the drawings indicate the same components unless otherwise indicated.

The present invention is a work table 100 that allows an operator to step at a certain height from the ground according to the illustrations of Figs. 1 to 6, a support 300 for preventing the work table 100 from being overturned, and a support for the work table to be fixed. It consists of a clamp 200 to enable.

The worktable 100 is the same as a known configuration, and has a horizontal plate shape and a working platform 110 that forms a rectangular shape when viewed in a plan view, and a vertical type installed on both sides of the working platform 110, respectively. It consists of a leg member 120.

The leg member 120 is composed of a first leg portion having one end rotatably coupled to the working foot plate 110, and a second leg portion extending by being slidably inserted into the first leg and one end supported on the ground. The height can be adjusted according to the loosening and tightening of the fastener.

The support 300 is composed of a contact portion that one side is in close contact with the side of the leg member 120 and a fall prevention portion that is bent from an end of the contact portion and the bent end supports the ground.

The clamp 300, a pair of coupling members 220 and 240 facing each other, a fastener 400 and a nut 480 for fixing them, and preventing rotation around the fastener 400 It consists of a rotation control device (600).

The coupling members 220 and 240 may be made of a material such as metal, aluminum, synthetic resin, etc., and may be made of a pair facing each other, and the outer shape of the leg member 120 may be slid only up and down on a corresponding side. The first and second guide grooves 222a and 242a are formed facing each other so as to be wrapped and fixed in a shape facing each other, and the first arc-shaped to surround and fix the support 200 having a circular cross-section on the corresponding other side. And second guide grooves 222b and 242b facing each other.

The support 300 is formed by bending into a solid or hollow pipe shape, and one side thereof is a contact portion positioned in the first and second guide grooves 222b, 242b, and from the bottom of the contact portion toward the outside. It is bent obliquely and consists of a fall prevention part supported on the bottom surface.

That is, the vertical bar is wrapped and fixed in the first and second guide grooves 222b and 242b while the vertical bar is positioned parallel to the leg member 120, and the inclined lower end of the fall prevention part is supported on the ground. It will generate support.

The fastener 400 is located in the middle of the coupling member 220, 240, and is screwed when the nut 480 is locked, so that the coupling member 220, 240 together with the leg member 120 It is to fix the support 300.

The nut 480 is positioned outside the coupling member 140 to fasten the screw portion when the screw portion of the fastener 400 passes.

The rotation control unit 600, the female guide 620, 620a and male guides 640, 640a, which are coupled in a corresponding state, are located on both sides of the fastener 400 The slides are combined.

When the female guides 620 and 620a and the male guides 640 and 640a are fixed to the corresponding wall surfaces of the strong coupling members 220 and 240, they may be coupled to each other at different positions.

The female and male guides 620 and 640 and the female and male guides 620a and 640a, which can be slidably coupled to each other in a state corresponding to each other, are coupled in a male and female coupling form, so that the coupling members 220 and 240 are fastened. It is controlled not to rotate in the opposite direction around the sphere 400.

In this way, when the female and male guides 620 and 640 on both sides of the fastener 400 are slide-coupled to each other in a male-and-male combination, the coupling members 220 and 240 connect the fastener 400 to each other. It will not rotate around the center.

In addition, each of the female and male guides 620 and 640 coupled to each other and the female and male guides 620a and 640a surround the outer shape, and both ends are on the corresponding surfaces of the coupling members 220 and 240 A restoring spring 700 that is supported and generates an elastic restoring force when the fastener 400 is tightened and released is provided.

Accordingly, when the nut 480 is loosened when rotating and moving the position, the restoring spring 700 generates a restoring force, and both coupling members 220 and 240 are opened, and the nut ( 480) When loosened, it can be moved even if it is not completely loosened.

Here, the inner walls of the first and second guide grooves 222b and 242b constituting the coupling members 220 and 240 may be made of unevenness in which the guide groove and the guide protrusion are continuously repeated.

In addition, the restoration spring 700 is for generating an elastic restoring force according to the tightening and loosening of the nut 480, so that it is positioned while surrounding the outside of the threaded portion of the fastener 400, not the female and male guides coupled to each other. can do. In this case, since it is located at the center, one restoration spring 700 can be used.

The assembly and installation process of the device for preventing fall of the workbench according to the present invention configured as described above will be described with reference to the accompanying drawings.

When assembling,

The coupling members 220 and 240 constituting the clamp 200 may be coupled to the leg member 120 constituting the work table 100, and at this time, the first guide groove of the coupling member 220 as shown in FIG. 3 (222a) is in close contact with one side of the leg member 120, and at the same time, the second guide groove 242a of the coupling member 240 is in close contact with the other side of the leg member 120. Nuts the threaded portion of the fastener 400 in a state in which the contact portion of the support 300 is positioned between the first and second guide grooves 222b and 242b formed on the other side of the coupling member 220 and 240 in succession. When tightened to 480, when the coupling members 220 and 240 facing each other are pulled together and can be fixed to the leg member 120, the assembly is completed as shown in FIG. 1.

When installing,

When the leg member 120 is deployed from the working foot plate 110 constituting the work table 100 and the deployment is completed, the head, which is the fastener 400 constituting the clamp 200, is rotated in the loosening direction. Then, an elastic restoring force is generated in the restoring spring 700, and at this time, the coupling member 220 and the coupling member 240 in close contact with each other are spaced apart from each other, and at the same time, the close contact portion of the support 300 is the coupling member 220, 240 It becomes possible to slide about. At this time, the male guides 640 and 640a are slide-out with respect to the female guides 620 and 620a so that they are separated from each other without twisting.

Thereafter, when the operator slides the coupling members 220 and 240 downward so that the lower end of the fall prevention part forming the lower side of the support 300 touches the ground, the nut 480 is locked. Then, as the coupling members 220 and 240 are in close contact with each other, the support 300 maintains a fixed state with respect to the leg member 120 to prevent the worktable from falling.

In the above, preferred embodiments of the present invention have been described, but those of ordinary skill in the art will add, change, delete or add components within the scope not departing from the spirit of the present invention described in the claims. It will be possible to variously modify and change the present invention by, etc., it will also be said to be included within the scope of the present invention.

100: worktable
110: working footrest 120: leg member
200: clamp
300: support
600: rotation control unit
620: female guide 640: male guide
700: restoration spring

Claims (3)

In a worktable comprising a working platform 110 provided with a working foot plate 110 and provided with leg members 120 on both sides of the working foot plate 110 so that the operator can step and work at a certain height from the ground,
Both leg members 120 have a rectangular cross-section in shape, and a fall prevention support 300 made of a circular cross-section on one side thereof is fixed to the leg member 120 through a clamp 200, respectively;
The clamp 200,
The first and second guide grooves 222a and 242a face each other so as to wrap and fix the outer shape of the leg member 120 in a facing shape so that it can slide only up and down on the corresponding side A coupling member 220 and 240 formed with arc-shaped first and second guide grooves 222b and 242b facing each other so as to surround and fix the support 300 on the corresponding other side;
A fastening that is located in the middle of the coupling member 220 and 240 and is screwed when the nut 480 is locked, so that the coupling member 220 and 240 fix the support 300 together with the leg member 120 Sphere 400;
The coupling members 220 and 240 are slidably coupled to each other in the form of male and female coupling on both sides of the fastener 400 from the inside of the coupling member 220, 240 so that the coupling member 220, 240 is connected to the fastener 400 Rotation control unit 600 for controlling the rotation in the direction opposite to each other around the center;
Restoration to generate elastic restoring force when the fastener 400 is loosened by being coupled by surrounding the fastener 400 or the rotation control tool 600 and supporting the corresponding surfaces of the connecting members 220 and 240 at both ends Spring 700; clamp for fixing the support for preventing the fall of the workbench, characterized in that configured to include.
The method of claim 1,
A clamp for fixing a support for preventing fall of a worktable, characterized in that a protruding line for preventing slipping is arranged on the inner walls of the first and second guide grooves (222b) (242b).
The method of claim 1,
The rotation control device 600,
The female and male guides 620 and 640 located on both sides of the fastener 400 at one side of the coupling member 220,
The female and male guides 620a and 640a located on both sides of the fastener 400 at one side of the coupling member 240,
For fixing the support for preventing the worktable from falling, characterized in that the guides 620, 620a and the male guides 640, 640a are coupled to each other in different positions on both sides of the fastener 400 as the center clamp.

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