KR101579961B1

KR101579961B1 - Clamp unit and truss apparatus using the same

Info

Publication number: KR101579961B1
Application number: KR1020140048816A
Authority: KR
Inventors: 이범호
Original assignee: 금강공업(주)
Priority date: 2014-04-23
Filing date: 2014-04-23
Publication date: 2016-01-11
Also published as: KR20150122486A

Abstract

A clamp unit and a truss apparatus using the same are introduced.
A clamp unit according to the present invention is a clamp unit in which a main body and an auxiliary body are rotatably coupled via a hinge shaft so as to clamp an object, wherein one side of the main body and one side of the auxiliary body are connected to each other via elastic means And one of the main body and the auxiliary body is telescopically coupled to any one of the other main body or the auxiliary body.

Description

CLAMP UNIT AND TRUSS APPARATUS USING THE SAME

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp unit capable of adjusting a gap and a truss apparatus using the same, more particularly, to a clamp unit and a truss apparatus using the clamp unit.

Generally, in construction and civil engineering work, a mold frame must be installed in advance in order to place a concrete. In order to install a mold frame, an operator installs a scaffold on a frame, climbs on the frame, And the frame is connected to form a frame panel for concrete pouring.

In recent years, there has been a stereotyped form frame to facilitate the work of formwork.

Such a mold edge is formed by providing a plurality of standardized panels of different sizes, and attaching a profile (a profile for supporting a concrete form frame) and an aluminum frame to one side edge of the panel.

As a conventional method of connecting the formwork frame, a method of connecting a through hole to a profile and an aluminum section steel using a coupling element such as a wedge pin, an alumphin pin, a bolt, a nail, or a rivet is used.

However, such a conventional fastening method has various problems such as troublesome work and damages the frame rim. In order to use pins, bolts, nails, rivets, etc., it is necessary to drill holes in profiles and aluminum sections, It takes time and expense for processing, and there is a disadvantage that the strength of the profile and the aluminum section steel is lowered.

In addition, when dismounting the form frame, it takes a lot of time to unscrew the screw. In the case of using the rivet, it is inconvenient to cut and remove the head.

Meanwhile, in order to solve such a problem, "Clamp" is disclosed in Korean Utility Model No. 1994-0008002 (April 14, 1994).

A base portion having a wedge bore formed therein, a base portion slidably guided inwardly of the body of the base member and having a first inclined portion formed on a bottom surface of the base portion, A slider member holding a second pressing piece for pressing the first and second form edges on the opposite side and a second inclined member engaged with the first inclined teeth so as to penetrate the wedge hole, And a moving wedge.

According to this clamp, it is possible to perform the member-joining operation without separately performing the first and second form edges, and it is possible to easily perform the joining and disassembling operations of the first and second form edges, Since the interval can be adjusted, there is an advantage that it can be easily fastened regardless of the sizes and types of the first and second formwork edges.

However, in the case of such a clamp, there is a disadvantage in that, when the size of the first and second formwork edges are different from each other, the formwork edges can not be bound due to the first and second pressured shapes.

In addition, when the clamp is installed by changing the left and right clamps, the wedge must be fastened from the lower part to the upper part. Such a work is very inconvenient and not only deteriorates the workability, There is a problem that it can be disassembled even in a small impact due to movement.

Korean Patent No. 10-0792031 (Dec. 28, 2007) discloses a "clamp for binding a form edge."

This is to solve the problems of the above-mentioned Korean Utility Model No. 1994-0008002. In the case where the size and the type of the two formwork frames to be combined are different, or when the formwork frame can not be caught by using the basically- Is a mold clamping clamp capable of clamping a form frame by a simple operation of selecting any one of the first and second press fittings and fastening the adapter without separately manufacturing a separate clamp for the mold edge of the mold.

However, this prior art still suffers from the inconvenience that the worker repeatedly needs to tighten and unscrew screws, pins and the like in order to fasten the adapter.

Korean Patent Laid-Open Nos. 10-2013-0097365 (2013.09.03) and Korean Patent No. 10-1336663 (November 31, 2013) disclose a "truss apparatus".

A horizontal member formed between the vertical support members of the slab foam for preventing buckling; a horizontal member connected between the horizontal member and the vertical support member and having a main body, an auxiliary body mounted on the main body, and a wedge- And a connecting portion in which a slant portion is movably formed in the ball to form a wedge unit for approaching the main body and the auxiliary body.

The truss device adjusts the interval between the main body and the auxiliary body while rotating around the hinge pin. When the desired interval is formed, the truss device is fixed by using the wedge unit to cope with a change in the thickness of the support column.

However, when the worker adjusts the distance between the main body and the auxiliary body according to the volume of the support column, the operator must adjust the interval of the wedge unit in a dismantled state and fix the wedge unit again. There is a disadvantage in that. That is, in the state where the wedge unit is dismantled, the operator has to hold the main body and the auxiliary body in order to maintain a desired gap. In this state, the wedge unit must be lowered. Lt; / RTI >

On the other hand, the support pillars are made to be of the same width and width. The outer circumferential surface of the jacket and the buckle are provided with hooking grooves so that the first hook portion and the second hook portion described in the above-described prior art can be engaged.

However, even if the main body and the auxiliary body are rotated about the hinge axis corresponding to the fixed rotation axis to adjust the distance therebetween, it is not possible to hook the first hook portion and the second hook portion to the hooked grooves There is a disadvantage in that.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as adhering to the prior art already known to those skilled in the art.

(Prior Art 1) Korean Utility Model No. 1994-0008002 (Apr. 18, 1994) (Prior Art 2) Korean Patent No. 10-0792013 (December 28, 2007) (Prior Art 3) Korean Patent Laid-Open No. 10-2013-0097365 (March 31, 2013) (Prior Art 4) Korean Patent No. 10-1336663 (November 31, 2013)

SUMMARY OF THE INVENTION The present invention provides a clamp unit capable of easily clamping a clamp unit and a truss apparatus using the elastic unit and the movable hinge shaft, There is a purpose.

According to an aspect of the present invention, there is provided a clamp unit including a main body and an auxiliary body rotatably coupled to each other via a hinge shaft so as to clamp an object, The side surface is connected via elastic means, and either the main body or the auxiliary body is telescopably coupled to any one of the other.

Wherein the main body includes a top plate, a bottom plate, and side plates passing through one side of the top plate and the bottom plate, wherein upper and lower slots are respectively formed in the top plate and the bottom plate, And a wedge that is inserted into the upper slot and the lower slot and has a side thereof pressing the auxiliary body to rotate the auxiliary body about the hinge axis.

The wedge includes: a lower end which is elongated in the vertical direction and has a narrower width than a length of the upper slot and the lower slot; a connecting bar extending from the upper end of the lower end bar and having one side inclined; And an upper bar bent and extended from the upper end of the connecting bar, wherein the auxiliary body includes: a top frame formed with a first through hole through which the hinge shaft can be inserted; a side frame bent downward from one side of the top frame; And a bottom frame extending parallel to the top frame at a lower end of the side frame and having a second through hole corresponding to the first through hole, wherein one side of the connecting bar is pressed against the other side of the top frame, .

An upper hinge hole is formed on the upper surface plate so that the hinge shaft can move, and a lower hinge hole is formed on the lower plate so that the hinge shaft can move.

Wherein the upper hinge hole has an upper left hinge hole, an upper right hinge hole, and an upper left hinge hole and an upper right hinge hole. The upper left hinge hole, the upper right hinge hole, Wherein the lower hinge hole includes a lower left hinge hole, a lower right hinge hole, and a lower intermediate hinge hole that connects the lower left hinge hole and the lower right hinge hole, The hinge shaft includes a head having a diameter larger than that of the upper left hinge hole and the upper right hinge hole, and a second intermediate hole formed between the lower left hinge hole and the lower right hinge hole, And a first intermediate bar extending perpendicularly from a lower end of the first intermediate hole and having a smaller diameter than the first intermediate hole.

Wherein the hinge shaft includes a winding bar having a diameter larger than that of the first intermediate hole and the second intermediate hole and extending vertically at a lower end of the first intermediate bar and extending vertically at a lower end of the winding bar, And a tail bar extending perpendicularly to the second intermediate bar and having a diameter greater than that of the lower left hinge hole and the lower right hinge hole, wherein the elastic means is wound on the winding bar, One end of which abuts on the side plate, and the other end of which includes a compression spring abutting one side of the auxiliary body.

The bottom surface of the lower frame is in contact with the plane of the lower plate and the other side of the upper frame is bent and formed so that the lower surface of the lower frame is pressed by the inclined surface of the connecting bar. .

A first hook formed to one side of the side plate and bent to the inside of the main body and having a tip formed in a tooth shape is extended and one end of the side frame is bent toward the inside of the auxiliary body, And the second hook formed by the second hook is extended.

A stopper formed horizontally through the tail bar and protruding from the tail bar at one end and the other end, and a restoration spring wound around the second intermediate bar, the upper end of which contacts the bottom surface of the winding bar and the lower end thereof contacts the stopper .

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a truss apparatus using a clamp unit, comprising: a horizontal member installed between a pair of vertical support members to prevent buckling; A main body and an auxiliary body connected between the horizontal member and the vertical support member so as to be rotatable about a hinge axis so as to be able to clamp the vertical support member, And a clamping unit connected to the main body or the auxiliary body by telescoping with respect to any one of the main body or the auxiliary body.

The plane of the upper surface frame is in contact with the bottom surface of the upper plate, the lower surface of the lower frame is in contact with the plane of the lower plate, and the other side of the upper frame is bent by the inclined surface of the connecting bar .

The present invention has the following various effects due to the technical structure described above.

First, there is an advantage that the clamping unit can be used to meet the standard of the vertical support member by moving the hinge axis corresponding to the central rotation axis and telescoping the auxiliary body.

Second, there is an advantage that the clamping angle can be more easily adjusted by using the elastic means and the wedge.

Third, there is an advantage of minimizing the number of workers required for clamping work.

1 is a view showing a truss apparatus using a clamp unit according to the present invention,
2 is an exploded perspective view of the clamp unit of the present invention,
3 is a perspective view of the clamp unit of the present invention,
4 is a side view of the clamp unit of the present invention,
5 is a plan view of the clamp unit of the present invention,
Fig. 6 is a view showing a state in which the clamp unit of the present invention binds a small-
Fig. 7 is a view showing a state in which the clamp unit of the present invention binds a large-sized stand. Fig.

Hereinafter, a clamp unit according to a preferred embodiment of the present invention and a truss apparatus using the same will be described with reference to the accompanying drawings.

1 and 2, the truss apparatus using the clamp unit according to the present invention comprises a horizontal member 5 provided between a pair of vertical support members 3 to prevent buckling, ).

A plurality of vertical support members 3 are usually used to support the slab foam, and a plurality of vertical support members 3 are connected to the horizontal member 5 so as to withstand the load acting upon concrete pouring.

The clamp unit 1 includes a main body 100, an auxiliary body 200, a hinge shaft 500, an elastic means 300, and a wedge 400.

The main body 100 and the auxiliary body 200 are rotatably coupled through a hinge shaft so that the main body 100 and the auxiliary body 200 can be rotated about the hinge axis 500 depending on the size of the vertical support member 3, The vertical supporting member 3 having various sizes can be clamped by adjusting the angle of rotation of the vertical supporting member 200. [

One side of the main body 100 and the auxiliary body 200 are connected via elastic means 300.

The elastic means 300 is biased to one side of the main body 100 and the auxiliary body 200 so that the elastic means 300 applies an elastic force to the auxiliary body 200 in the direction in which the angle between the main body 100 and the auxiliary body 200 is increased.

The wedge 400 penetrates the main body 100 and the auxiliary body 200 to press one surface of the auxiliary body 200 to allow the auxiliary body 200 to rotate around the hinge axis 500, The rotation angle of the auxiliary body 200 is adjusted according to the degree that the main body 100 and the auxiliary body 200 descend through the main body 100 and the auxiliary body 200.

That is, the clamping angle formed between the main body 100 and the auxiliary body 200 without the wedge 400 passing through the main body 100 and the auxiliary body 200 is maximized by the elastic means 300 And the angle of the auxiliary body 200 is adjusted to be narrowed by rotating the auxiliary body 200 in one direction in accordance with the degree of descent of the wedge 400. The main body 100 and the auxiliary body 200 200 are minimized.

The clamp unit 1 of the present invention can be applied to any one of the main body 100 or the auxiliary body 200 so as to be applicable to both the bell 3b and the bell 3a of the standardized standard constituting the vertical support member 3. [ Is telescopably coupled to any one of the remaining members.

That is, in order for the clamp unit 1 to clamp the vertical support members 3 of all sizes such as the standard 3b and the standard 3a of the standard size, the rotation center axis of the main body 100 and the auxiliary body 200, The position of the hinge shaft 500 corresponding to the hinge shaft 500 should not be fixed.

This is because when the hinge shaft 500 is fixed, the clamping unit 1 and the vertical support member 3 are fastened to the clamping grooves formed on the outer peripheral surfaces of the bell mouth 3a and the bell mouth 3b, This is because the end can not be correctly engaged.

The present inventor has found that the main body 100 and the auxiliary body 200 can be attached to the main body 100 and the auxiliary body 200 so that the end of each of the main body 100 and the auxiliary body 200 can be caught in the engagement groove formed in the vertical support member 3 of various standards, 200 can be telescoped with respect to the rest of the members.

The hinge axis 500 corresponding to the rotation center axis moves so that the interval between the main body 100 and the auxiliary body 200 is distanced (telescoping operation) to clamp the vertical support members 3 of various sizes It is possible.

It is possible to achieve the object of the present invention if any one of the main body 100 and the auxiliary body 200 can be telescoped with respect to the other member, 200 may be telescoped with respect to the main body 100, but the main body 100 may be designed to be telescopically operable relative to the auxiliary body 200 in accordance with the designer's intention.

2 and 3, the main body 100 includes a top plate 110, a bottom plate 120, a top plate 110, and a side plate 130 Quot; C "shape) as a whole.

Since the bolt hole C is formed in each of the upper plate 110 and the lower plate 120 so that the bolt B is inserted into the gap between the upper plate 110 and the lower plate 120, ).

An upper slot 110a and a lower slot 120a are formed in the upper face plate 110 and the lower face plate 120 so that the wedge 400 can be inserted into the upper slot 110a and the lower slot 120a, The length of the upper slot 110a may be longer than the length of the lower slot 120a in consideration of the shape of the wedge 400 .

As described above, the wedge 400 is inserted into the upper slot 110a and the lower slot 120a, and one side of the wedge 400 presses the auxiliary body 200 to adjust the rotation angle of the auxiliary body 200, And maintains an angle formed between the main body 100 and the auxiliary body 200.

The wedge 400 includes a lower bar 410, a connecting bar 420 and an upper bar 430. The auxiliary body 200 includes a top frame 210, a side frame 230, a bottom frame 220, .

The lower bar 410 is formed to have a narrower width than the length of the upper slot 110a and the lower slot 120a so as to pass through the upper slot 110a and the lower slot 120a, The release preventing pieces 410a are protruded in a direction perpendicular to the direction in which the lower slot 120a is formed.

A connecting bar 420 is extended at the upper end of the lower bar 410. One side of the connecting bar 420 is inclined and the connecting bar 420 is slidably engaged with the upper slot 110a. And an upper bar 430 is formed on one side of the upper end of the upper bar 430.

A first through hole 210a and a second through hole 220a are formed in the top frame 210 and the bottom frame 220 of the auxiliary body 200 so that the hinge shaft 500 can be inserted, One side of the lower frame 210 and the lower frame 220 are connected via a side frame 230.

As the wedge 400 descends, the inclined surface of the connection bar 420 presses the other side of the upper frame 210 to rotate the auxiliary body 200 in one direction, and the wedge 400 The pressing force is further increased and the rotation angle of the auxiliary body 200 is further increased.

The lower surface of the lower frame 220 contacts the plane of the lower plate 120 and the other side of the upper frame 210 contacts the lower surface of the connecting bar 420. The lower surface of the upper frame 210 contacts the lower surface of the upper plate 110, It is preferable that the pressing groove 210b is bent so as to be pressed in the rotating direction of the auxiliary body 200 by the inclined surface.

The pressing grooves 210b are formed in the upper frame 210 and the lower frame 220. The pressing grooves 210b are formed in the upper frame 210 in consideration of the shape of the wedge 400, It is preferable that the depth of the wedge 400 is formed deeper than the depth of the pressing groove 210b formed on the lower surface of the frame 220. The side surface of the wedge 400 is formed with the pressing groove 210b formed on the lower and upper frames 210 and 220, So that the force transfer ability is improved.

2 and 5, one end of the side plate 130 and the side frame 230 of the clamp unit 1 of the present invention are respectively fixed to one side so as to clamp the vertical support member 3 The bent first hook 130a and the second hook 230a are formed and the ends of the first hook 130a and the second hook 230a are formed into a tooth shape so as to correspond to the above- .

Hereinafter, a configuration for telescoping the clamp unit of the present invention will be described.

2 and 4, an upper hinge hole 110b is formed in the upper surface plate 110 and the lower surface plate 120 of the main body 100, which is one part of the present invention, so that the hinge shaft 500 can be moved. And a lower hinge hole 120b are formed.

The upper hinge holes 110b and the lower hinge holes 120b are formed to correspond to each other and are formed at positions corresponding to the upper plate 110 and the lower plate 120 in the vertical direction, The first through hole 210a and the second through hole 220a formed in the lower frame 220 are rotatably coupled to the upper hinge hole 110b and the lower hinge hole 120b, Lt; / RTI > That is, the position of the hinge shaft 500 corresponding to the rotation center axis varies.

The upper hinge hole 110b connects the upper left hinge hole 110L, the upper right hinge hole 110R, the upper left hinge hole 110L and the upper right hinge hole 110R, And a first intermediate hole 110M formed to be smaller than the diameter of the left hinge hole 110L and the upper right hinge hole 110R.

The lower hinge hole 120b also connects the lower left hinge hole 120L, the lower right hinge hole 120R, the lower left hinge hole 120L and the lower right hinge hole 120R, And a second intermediate hole 120M formed to be smaller than the diameter of the left hinge hole 120L and the lower right hinge hole 120R.

For example, the shape of the upper hinge hole 110b and the lower hinge hole 120b may be a dumbbell shape.

The hinge shaft 500 includes a head 510, a first intermediate bar 520, a winding bar 530, a second intermediate bar 540 And a tail bar 550, as shown in FIG.

The head 510 has a diameter that is larger than the diameter of the upper left hinge hole 110L and the upper right hinge hole 110R so as not to pass through the upper left hinge hole 110L to the upper right hinge hole 110R and the first through hole 210a. And the first through hole 210a. That is, when the main body 100 and the auxiliary body 200 are engaged, the head 510 can not pass through the upper left hinge hole 110L or the upper right hinge hole 110R, The upper plate 110 of the heat exchanger 100 is contacted.

The first intermediate bar 520, the winding bar 530, the second intermediate bar 540 and the tail bar 550 are continuously extended from the head 510 in a vertical direction.

The diameter of the first intermediate bar 520 is smaller than that of the head 510 and is smaller than the diameter of the first intermediate hole 110M so that the winding bar 530 The second intermediate bar 540 is extended from the winding bar 530 in the vertical direction and the tail bar 550 is extended from the second intermediate bar 540 in the vertical direction.

The tail bar 550 has a larger diameter than the lower left hinge hole 120L, the lower right hinge hole 120R and the second through hole 220a.

The elastic means 300 includes a compression spring 310. The compression spring 310 is wound on the winding bar 530 so that one end of the compression spring 310 contacts the side plate 130 and the other end of the compression spring 310 contacts the side surface of the auxiliary body 200 And contacts the side frame 230.

The hinge shaft 500 moves to the upper right hinge hole 110R and the lower right hinge hole 120R in a state where the hinge shaft 500 is vertically positioned to the upper left hinge hole 110L and the lower left hinge hole 120L, The first intermediate bar 520 and the second intermediate bar 540 are positioned such that the upper left hinge hole 110L and the lower left hinge hole 120L And the hinge shaft 500 is lifted up by holding the head 510.

Since the diameters of the first intermediate bar 520 and the second intermediate bar 540 are smaller than the intervals between the opposing inner surfaces of the first intermediate hole 110M and the second intermediate hole 120M, And is movable to the upper right hinge hole 110R and the lower right hinge hole 120R through the hole 110M and the second intermediate hole 120M.

When the operator moves the hinge shaft 500 to the upper right hinge hole 110R and the lower right hinge hole 120R and the operator places the head 510, the hinge shaft 500 drops, The telescopic operation is completed while being caught by the plane of the upper surface plate 110 in the vicinity of the right hinge hole 110R.

As a result, the distance between the main body 100 and the auxiliary body 200 becomes farther apart.

On the other hand, the tail bar 550 is formed with a stopper 550a passing through the tail bar 550 in the horizontal direction and protruding at both ends thereof.

The restoration spring 600 is wound on the second intermediate bar 540 while the upper end thereof is in contact with the bottom surface of the winding bar 530 and the lower end thereof is in contact with the stopper 550a The restoring spring 600 is compressed when the operator lifts the head 510 to telescopically move the hinge shaft 500. When the operator releases the head 510 after the movement is completed, (500) descends in a vertical direction so that the head (510) can be caught by the top plate (110).

A bush H may be interposed between the upper end of the restoring spring 600 and the bottom of the winding bar 530 and between the lower end of the restoring spring 600 and the upper surface of the stopper 550a.

The stopper 550a functions to prevent the restoring spring 600 from separating from the tail bar 550. [

Hereinafter, the operation of the clamp unit and the truss apparatus using the clamp unit of the present invention will be described.

2, 3 and 6, the clamp unit 1 of the present invention includes a first hook 130a formed at one end of the side plate 130 of the main body 100, a second hook 130a formed at one end of the auxiliary body 200, The second hook 230a formed at one end of the side frame 230 of the vertical support member 3 clamps the buckle 3b of the vertical support member 3 to prevent buckling of the vertical support member 3. [

Both ends of the compression spring 310 are deformed by the side plate 130 of the main body 100 and the side frame 230 of the auxiliary body 200 when the springs 3b having a relatively small size are clamped. And this state can be maintained by engaging the inclined surface formed on the connecting bar 420 of the wedge 400 with the pressing groove 210b formed in the side frame 230. [

2, 3 and 7, in order for the clamp unit 1 of the present invention to clamp the outer surface 3a of the relatively large vertical support member 3, the position of the hinge shaft 500 Moving is necessary.

That is, the telescoping operation in which the distance between the auxiliary body 200 and the main body 100 is distanced by the movement of the hinge shaft 500 should proceed.

The operator may place the first intermediate bar 520 and the second intermediate bar 540 on the hinge shaft 500 so as to reach the same height as the first intermediate hole 110M and the second intermediate hole 120M for the telescoping operation, The head 510 of the hinge shaft 500 is lifted and the position of the hinge shaft 500 is moved.

The auxiliary body 200 is rotated around the moved hinge shaft 500 to clamp the vertical supporting member 3. To clamp the outer supporting member 3 of the relatively larger vertical supporting member 3, The rotation angle of the body 200 must be larger, and the wedge 400 must be lifted for this purpose.

When the wedge 400 is lifted up, the restoring force of the compression spring 310, which is in contact with both the side plate 130 and the side frame 230 at both ends, causes the auxiliary body 200 to have a larger angle from the main body And the inclined surface of the connecting bar of the wedge 400 moves along the pressing grooves 210b of the side frame 230 to restrict the rotation angle thereof.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

1: clamp unit 3: vertical support member
3a: Bracket 3b: Horde
5: Horizontal member 100: Main body
110: upper plate 110a: upper slot
110b: upper hinge hole 110L: upper left hinge hole
110R: upper right hinge hole 110M: first intermediate hole
120: lower plate 120a: lower slot
120b: lower hinge hole 120L: lower left hinge hole
120R: Lower right hinge hole 120M: Second intermediate hole
130: side plate 130a: first hook
200: auxiliary body 210: upper frame
210b: pressure groove 210a: first through hole
220: lower frame 220a: second through hole
230: side frame 230a: second hook
300: elastic means 310: compression spring
400: Wedge 410: Lower bar
410a: Departure prevention piece 420: Connection bar
430: upper bar 500: hinge shaft
510: head 520: first intermediate bar
530: Winding bar 540: Second intermediate bar
550: Tail bar 550a: Stopper
600: restoration spring

Claims

CLAIMS 1. A clamp unit rotatably coupled between a main body and an auxiliary body via a hinge shaft so as to clamp an object,
One side of the main body and the other side of the auxiliary body are connected via elastic means and either the main body or the auxiliary body is telescopably coupled to the other one,
The main body includes a top plate, a bottom plate, and a side plate that mediates one side of the top plate and the bottom plate,
A lower hinge hole is formed in the lower surface plate so that the hinge shaft can be moved,
Wherein the upper hinge hole has an upper left hinge hole, an upper right hinge hole, and an upper left hinge hole and an upper right hinge hole. The upper left hinge hole, the upper right hinge hole, And a first intermediate hole formed to be smaller than the diameter of the hole,
The lower hinge hole connects the lower left hinge hole, the lower right hinge hole, the lower left hinge hole, and the lower right hinge hole with a gap between the inner side surfaces facing each other, the lower left hinge hole and the lower right hinge hole, And a second intermediate hole formed to be smaller than the diameter of the hole,
The hinge shaft includes a head having a larger diameter than the upper left hinge hole and the upper right hinge hole and a first intermediate bar extending vertically at a lower end of the head and having a smaller diameter than the first intermediate hole,
Wherein the hinge shaft includes a winding bar having a diameter larger than that of the first intermediate hole and the second intermediate hole and extending vertically at a lower end of the first intermediate bar and extending vertically at a lower end of the winding bar, And a tail bar extending vertically in the second intermediate bar and having a larger diameter than the lower left hinge hole and the lower right hinge hole.

The method according to claim 1,
Wherein upper and lower slots are respectively formed in the upper surface plate and the lower surface plate,
And a wedge that is inserted into the upper slot and the lower slot and has a side thereof pressing the auxiliary body to rotate the auxiliary body about the hinge axis.

The method of claim 2,
The wedge includes: a lower end which is elongated in the vertical direction and has a narrower width than a length of the upper slot and the lower slot; a connecting bar extending from the upper end of the lower end bar and having one side inclined; And an upper bar formed by bending and extending from the upper end of the connecting bar to one side,
The auxiliary body includes a top frame formed with a first through-hole to allow the hinge shaft to be inserted therein, a side frame bent downward from one side of the top frame, and a second side frame extending and extending parallel to the top frame at a lower end of the side frame. And a second through hole corresponding to the first through hole is formed,
And one side of the connecting bar presses the other side of the upper frame.

delete

The method according to claim 1,
Wherein the elastic means is wound on the winding bar, one end of which is in contact with the side plate, and the other end of which is in contact with one side of the auxiliary body.

The method of claim 3,
Wherein a plane of the upper frame is in contact with a bottom surface of the upper plate and a lower surface of the lower frame is in contact with a plane of the lower plate,
And the other side of the upper frame is bent so that the pressing groove can be pressed by the inclined surface of the connecting bar.

The method of claim 7,
A first hook formed to one end of the side plate and bent to the inside of the main body and having an end formed in a tooth shape,
And a second hook formed at one end of the side frame and curved toward the inside of the auxiliary body and having an end formed in a tooth shape.

The method of claim 7,
One end and the other end of the stop bar protruding from the tail bar,
And a restoring spring that is wound on the second intermediate bar and has an upper end abutting against the bottom surface of the winding bar and a lower end abutting against the stopper.

A horizontal member installed between the pair of vertical support members to prevent buckling; And
A main body and an auxiliary body connected between the horizontal member and the vertical support member so as to be rotatable about a hinge axis so as to be able to clamp the vertical support member, And a clamp unit coupled to the main body or the auxiliary body via telescoping means so that any one of the main body and the auxiliary body is telescopably coupled to the other of the main body and the auxiliary body,
The main body includes a top plate, a bottom plate, and a side plate that mediates one side of the top plate and the bottom plate,
A lower hinge hole is formed in the lower surface plate so that the hinge shaft can be moved,
Wherein the upper hinge hole has an upper left hinge hole, an upper right hinge hole, and an upper left hinge hole and an upper right hinge hole. The upper left hinge hole, the upper right hinge hole, And a first intermediate hole formed to be smaller than the diameter of the hole,
The lower hinge hole connects the lower left hinge hole, the lower right hinge hole, the lower left hinge hole, and the lower right hinge hole with a gap between the inner side surfaces facing each other, the lower left hinge hole and the lower right hinge hole, And a second intermediate hole formed to be smaller than the diameter of the hole,
The hinge shaft includes a head having a larger diameter than the upper left hinge hole and the upper right hinge hole and a first intermediate bar extending vertically at a lower end of the head and having a smaller diameter than the first intermediate hole,
Wherein the hinge shaft includes a winding bar having a diameter larger than that of the first intermediate hole and the second intermediate hole and extending vertically at a lower end of the first intermediate bar and extending vertically at a lower end of the winding bar, And a tail bar extending perpendicularly to the second intermediate bar and having a diameter greater than that of the lower left hinge hole and the lower right hinge hole.

The method of claim 10,
Wherein upper and lower slots are respectively formed in the upper surface plate and the lower surface plate,
Further comprising a wedge that is inserted into the upper slot and the lower slot and has a side thereof pressing the auxiliary body to rotate the auxiliary body about the hinge axis.

The method of claim 11,
The wedge includes: a lower end which is elongated in the vertical direction and has a narrower width than a length of the upper slot and the lower slot; a connecting bar extending from the upper end of the lower end bar and having one side inclined; And an upper bar formed by bending and extending from the upper end of the connecting bar to one side,
The auxiliary body includes a top frame formed with a first through-hole to allow the hinge shaft to be inserted therein, a side frame bent downward from one side of the top frame, and a second side frame extending and extending parallel to the top frame at a lower end of the side frame. And a second through hole corresponding to the first through hole is formed,
And one side of the connecting bar presses the other side surface of the upper frame.

delete

The method of claim 10,
Wherein the elastic means is wound on the winding bar and has one end abutting against the side plate and the other end including a compression spring abutting one side of the auxiliary body.

The method of claim 12,
Wherein a plane of the upper frame is in contact with a bottom surface of the upper plate and a lower surface of the lower frame is in contact with a plane of the lower plate,
And the other side of the upper frame is formed by bending a pressing groove so as to be pressed by an inclined surface of the connecting bar.

18. The method of claim 16,
A first hook formed to one end of the side plate and bent to the inside of the main body and having an end formed in a tooth shape,
And a second hook formed at one end of the side frame and bent to the inside of the auxiliary body and having an end formed in a tooth shape is extended.

18. The method of claim 17,
One end and the other end of the stop bar protruding from the tail bar,
Further comprising a restoring spring which is wound on the second intermediate bar and whose upper end is in contact with the bottom surface of the winding bar and whose lower end is in contact with the stopper.