KR101494879B1 - Coupling Means for Form - Google Patents

Abstract

The present invention relates to a coupling member for a form which can couple adjacent forms by a resilient restoring force or a cam portion to easily install the form. A coupling member (100) to couple frames of two adjacent forms includes: a first coupling part (110), a second coupling part (120), a connecting part (130), a first handle part (140), and a second handle part (150). The first coupling part (110) has a first extension portion (111), a second extension portion (113) vertically bent from one end of the first extension portion (111), and a third extension portion (115) vertically bent from the other end of the first extension portion (111) to be in parallel with the second extension portion (113). The second coupling part (120) has a fourth extension portion (121), a fifth extension portion (123) vertically bent from one end of the fourth extension portion (121), and a sixth extension portion (125) vertically bent from the other end of the fourth extension portion (121) to be in parallel with the fifth extension portion (123). The connection part (130) connects a distal end of the second extension portion (113) and a distal end of the fifth extension portion (123) such that the first and fourth extension portions (111, 121) form an angle (θ) greater than 0 degrees and smaller than 180 degrees. The first handle part (140) extends from a distal end of the third extension portion (115) away from the first extension portion (111). The second handle part (150) extends from a distal end of the sixth extension portion (125) away from the fourth extension portion (121). The first and second coupling parts (110, 120) are coupled to the frame (400).

Description

{Coupling Means for Form}

The present invention relates to a fastening means for a form.

The formwork is a frame for maintaining the shape of the concrete in the building. The formwork must have rigidity to withstand the loads and pressures generated when the concrete is poured, and must have stable stability even after the concrete is laid. In addition, when the concrete is demineralized after curing for a certain period of time, the surface of the concrete must have a predetermined strength or more so that it is a suitable formwork. The construction related to this form is so large that it occupies about 10% ~ 15% of total construction cost and about 30% ~ 40% of frame construction cost. Also, as the buildings gradually become larger and larger, the work related to the formwork is an important process that determines the quality of the structure construction.

On the other hand, the form can be used as a plywood form, a Euro form, an aluminum form, a slip form, a gang form, a flying form, or a climbing form There are various kinds. Among them, the plywood formwork is the oldest formwork, and it has been used conveniently because it can be manufactured and installed according to the conditions of the site. However, there are disadvantages that many problems occur when the concrete is cast. In order to overcome the disadvantages of this plywood form, Euroform was developed in Europe. Eurofoam is made of plywood and steel frame and can be used repeatedly. It can be used on slab, beam, outer wall, etc.

As disclosed in the following prior art documents, in the conventional method of molding a workpiece, the wedge pin is inserted into the wedge hole, and the wedge pin is removed and removed. However, the conventional method of molding the formwork has a problem that the construction process is complicated and the construction time is excessively consumed. In addition, the conventional method of molding a die causes a serious noise in the process of fastening the wedge pin, and also the loss of the wedge pin is high and the material cost is high.

KR 2003-0059721 A

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and one aspect of the present invention is to easily perform the construction of a mold by using an elastic restoring force or by fastening a frame of an adjacent mold with one- And more particularly to a fastening means for a mold.

The formwork fastening means according to the first embodiment of the present invention fastens frames of two adjacent dies and comprises a first extending portion, a second extending portion bent vertically from one end of the first extending portion, And a third extending portion bent perpendicularly from the other end of the first extending portion so as to be parallel to the extending portion, a fourth extending portion, a fifth extending portion bent vertically from one end of the fourth extending portion, And a sixth extending portion that is vertically bent from the other end of the fourth extending portion so as to be parallel to the fifth extending portion, and a second connecting portion including a fourth connecting portion including an angle of less than 180 degrees A connecting portion connecting the distal end of the second extending portion and a distal end of the fifth extending portion, a first handle extending from a distal end of the third extending portion in a direction away from the first extending portion, It contains from 6-terminal extension of the fourth of the second knob extending in a direction away from the extension section parts and is fastened to the first fastening portion and the second fastening portion the frame.

In the fastening means for the formwork according to the first embodiment of the present invention, the first fastening portion, the second fastening portion, the connecting portion, the first grip portion, and the second grip portion have one elastic wire Respectively.

In the fastening means for the formwork according to the first embodiment of the present invention, by applying pressure in a direction in which the first handle portion and the second handle portion are brought close to each other, the first fastening portion and the second fastening portion, When the pressure applied to the first handle and the second handle is removed, the second extension, the third extension, the fifth extension, and the sixth extension Thereby pressing the frame.

In the fastening means for a form according to the first embodiment of the present invention, the first fastening portion and the second fastening portion are formed symmetrically with respect to a plane perpendicular to the connecting portion.

In the fastening means for the formwork according to the first embodiment of the present invention, the distance between the second extending portion and the third extending portion is defined as D1, and the distance between the fifth extending portion and the sixth extending portion Is defined as D2, and D1xcos (? / 2) and D2xcos (? / 2) are smaller than the width of the frame when defining an angle formed by the first extension portion and the fourth extension portion as? .

The formwork fastening means according to the second embodiment of the present invention includes a first extending portion, a second extending portion bent perpendicularly from one end of the first extending portion, and a second extending portion extending from the other end of the first extending portion A second fastening portion including a first fastening portion including a third extending portion vertically bent from the second extending portion, a fourth extending portion, and a fifth extending portion vertically bent from one end of the fourth extending portion, And a second extension extending from the distal end of the second extension to an angle of less than 180 degrees with respect to the first extension and at an angle of less than 180 degrees with respect to a plane perpendicular to the fifth extension, And a connecting portion connecting the other end of the fourth extending portion, wherein the first connecting portion and the second connecting portion are fastened to the frame.

In the fastening means for the formwork according to the second embodiment of the present invention, the first fastening portion, the second fastening portion, and the connecting portion are formed by extending one wire having elasticity.

In the formwork fastening means according to the second embodiment of the present invention, after the first fastening portion is coupled to the frame, a pressure is applied to the second fastening portion in a direction in which the fourth extending portion is parallel to the first extending portion When the pressure applied to the second fastening portion is removed after the second fastening portion is coupled to the frame, the second extending portion, the third extending portion, and the fifth extending portion are rotated by the elastic restoring force, Press the frame.

In the fastening means for the formwork according to the second embodiment of the present invention, the length of the fifth extending portion is shorter than the length of the second extending portion.

The distal end of the third extending portion is bent in a direction away from the first extending portion, and the distal end of the fifth extending portion is bent in a direction away from the fourth extending portion .

The formwork fastening means according to the third embodiment of the present invention fastens frames of two adjacent formworks and includes a center portion, a first bent portion vertically bent from one end of the center portion, and a second bent portion perpendicular to the first bent portion A cam portion that is coupled to the end of the first bent portion by a rotation axis so as to be rotatable and that is protruded inward of the coupling portion as it rotates and includes a second bent portion bent perpendicularly from the other end of the center portion, And a grip portion extending from the cam portion. When the grip portion is rotated after the grip portion is coupled to the frame, the protruding length of the cam portion is increased toward the inside of the first fold portion, do.

In the fastening means for the formwork according to the third embodiment of the present invention, the length of the cam portion protruding to the inside of the first bent portion is the maximum when the handle is stopped while the one end of the center portion comes into contact with the rotation.

In the fastening means for the formwork according to the third embodiment of the present invention, the distal end of the handle portion is bent upward in the central portion.

In the fastening means for the formwork according to the third embodiment of the present invention, the first bent portion includes a first member and a second member which extend parallel to each other from one end of the center portion, A predetermined space is provided between the two members, and the cam portion is coupled to the predetermined space by the rotation shaft.

In the fastening means according to the third embodiment of the present invention, a protrusion protruding in a direction away from the second bent portion is formed at a distal end of the first bent portion, and the cam portion is coupled to the protrusion by the rotation shaft .

In the fastening means for the form according to the third embodiment of the present invention, the length of the cam portion protruding in one direction with respect to the rotation axis is longer than the length protruding in the other direction with respect to the rotation axis.

In the fastening means for the formwork according to the third embodiment of the present invention, a contact portion protruding inward of the fastening portion is formed at the end of the second bent portion.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

According to the present invention, the construction process of the formwork can be simplified by using the elastic restoring force or by fastening the frame of the adjacent form with one-touch using the cam-shaped cam portion, and the construction time of the formwork can be reduced. Further, noise is not generated in the process of fastening the frame of the formwork, and the material cost can be reduced by lowering the loss rate.

1 is a perspective view of a fastening means for a formwork according to a first embodiment of the present invention;
FIG. 2 is a front view of the formwork fastening means shown in FIG. 1;
FIGS. 3A and 3B are perspective views illustrating a fastening process of the form fastening means shown in FIG. 1;
4 to 5 are plan views of the formwork fastening means shown in Fig. 1,
FIG. 6 is a perspective view of a frame of two adjacent molds fastened together using the formwork fastening means shown in FIG. 1;
FIG. 7 is a perspective view of the formwork fastening means according to the second embodiment of the present invention,
8 is a front view of the formwork fastening means shown in Fig. 7, Fig.
Fig. 9 is a plan view of the formwork fastening means shown in Fig. 7,
FIGS. 10A to 10C are perspective views showing a fastening process of the formwork fastening means shown in FIG. 7;
FIG. 11 is a perspective view of a frame of two adjacent molds fastened together using the formwork fastening means shown in FIG. 7,
12 to 13 are perspective views of the formwork fastening means according to the third embodiment of the present invention,
Figs. 14A to 14C are side views showing a fastening process of the form fastening means shown in Fig. 12, and Fig.
FIG. 15 is a perspective view of a frame of two adjacent formwork assembled using the formwork fastening means shown in FIG. 12;

BRIEF DESCRIPTION OF THE DRAWINGS The objectives, specific advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. Also, the terms "first "," second ", and the like are used to distinguish one element from another element, and the element is not limited thereto. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, detailed description of related arts which may unnecessarily obscure the gist of the present invention will be omitted.

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

FIG. 1 is a perspective view of a fastening means for a formwork according to a first embodiment of the present invention, FIG. 2 is a front view of the formwork fastening means shown in FIG. 1, and FIGS. 3a to 3b are cross- FIGS. 4 to 5 are plan views of the form fastening means shown in FIG. 1. FIG.

As shown in FIGS. 1 to 5, the fastening means 100 for a formwork according to the present embodiment is constructed by fastening a frame 400 of two adjacent formwork, and includes a first extension portion 111, A second extension portion 113 bent perpendicularly from one end of the first extension portion 111 and a third extension portion 115 bent perpendicularly from the other end of the first extension portion 111 in parallel with the second extension portion 113, A fourth extension portion 121, a fifth extension portion 123 bent vertically from one end of the fourth extension portion 121, and a fifth extension portion 123, A second connecting portion 120 including a sixth extending portion 125 bent perpendicularly from the other end of the fourth extending portion 121 so as to be parallel to the first extending portion 111 and the fourth extending portion 121, A connecting portion 130 connecting the distal end of the second extending portion 113 and the distal end of the fifth extending portion 123 so as to form an angle larger than 0 degrees and smaller than 180 degrees, From the distal end to the first extending portion 111 And a second handle 150 extending from the distal end of the sixth extension 125 in a direction away from the fourth extension 121. The first handle 140 includes a first handle 140 extending in the away direction, The fastening part 110 and the second fastening part 120 are fastened to the frame 400.

The form fastening means 100 according to the present embodiment may be formed by extending one wire having elasticity. That is, the first fastening part 110, the second fastening part 120, the connecting part 130, the first handle part 140, and the second fastening part 120, which are components of the formwork fastening means 100 according to the present embodiment, The grip portion 150 is formed by bending one wire, and the frame 400 of an adjacent die can be fastened by one-touch using the elasticity of the wire.

The first fastening part 110 and the second fastening part 120 serve to fasten two adjacent frames 400 substantially.

Here, the first fastening part 110 includes a first extension part 111, a second extension part 113, and a third extension part 115. Specifically, the second extending portion 113 is bent and extended vertically from one end of the first extending portion 111, and the third extending portion 115 is extended from the first extending portion 111, And extends vertically from the other end of the portion 111. [ At this time, the second extension part 113 and the third extension part 115 extend so as to face each other in parallel. Therefore, the first fastening part 110 is formed in a U-shape as a whole. The second extending portion 113 may be longer than the third extending portion 115.

The second fastening part 120 includes a fourth extension part 121, a fifth extension part 123, and a sixth extension part 125. Specifically, the fifth extending portion 123 extends perpendicularly from one end of the fourth extending portion 121, and the sixth extending portion 125 extends from the fourth extending portion 121, And extends vertically from the other end of the portion 121. [ At this time, the fifth extending portion 123 and the sixth extending portion 125 extend in parallel to each other. Accordingly, the second fastening part 120 may be formed in a U-shape similar to the first fastening part 110. [ The fifth extending portion 123 may be longer than the sixth extending portion 125.

Thus, the U-shaped first fastening part 110 and the second fastening part 120 fasten two adjacent frames 400 (see FIG. 3C). The first extension part 111 of the first fastening part 110 and the fourth extension part 121 of the second fastening part 120 are in contact with the upper surface of the frame 400 and the first fastening part The second extension portion 113 and the third extension portion 115 of the second coupling portion 110 and the fifth extension portion 123 and the sixth extension portion 125 of the second coupling portion 120 are formed on the side surface of the frame 400 .

The connection part 130 connects the first connection part 110 and the second connection part 120. Specifically, the connecting portion 130 may be formed such that the first extending portion 111 and the fourth extending portion 121 are spaced apart from each other by a distance between the distal end of the second extending portion 113 and the distal end of the second extending portion 113, 5 extension portions 123 of the first and second electrodes. That is, the connecting portion 130 may be formed to extend in the longitudinal direction of the first extending portion 111 and the fourth extending portion 121, as viewed from a plane perpendicular to the second extending portion 113 and the fifth extending portion 123, The end of the second extending portion 113 and the end of the fifth extending portion 123 are connected so that the longitudinal direction of the second extending portion 113 is larger than 0 and smaller than 180 degrees.

Meanwhile, the first fastening part 110 and the second fastening part 120 may be symmetrical with respect to a plane perpendicular to the connection part 130 (see FIG. 4). That is, the first fastening part 110 and the second fastening part 120 may be formed in the same shape, and the angle formed by the first extending part 111 of the first fastening part 110 and the connecting part 130 and the angle? / 2 between the second extending portion 113 of the second fastening portion 120 and the connecting portion 130 may be the same.

The first handle 140 and the second handle 150 induce the elastic deformation of the formwork fastening means 100 so that the first and second fastening portions 110 and 120 are connected to each other by two adjacent So that it can be easily coupled to the frame 400. 1, the first handle 140 extends from the distal end of the third extension 115 in a direction away from the first extension 111, and the second handle 150 extends in a direction away from the first extension 111, Extends from the distal end of the extension portion 125 in a direction away from the fourth extension portion 121. The first handle 140 may be bent in a U-shape from the distal end of the third extension 115 and the second handle 150 may be formed from the distal end of the sixth extension 125, Like shape.

The fastening part according to the present embodiment including the first fastening part 110, the second fastening part 120, the connecting part 130, the first grip part 140, and the second grip part 150, The process of fastening the two adjacent molds by means 100 is as follows.

3A and 3B, when a pressure is applied in a direction in which the first handle 140 and the second handle 150 are brought close to each other (see arrows in FIG. 3B), the first The fastening portion 110 and the second fastening portion 120 are bent in a direction in which they approach each other. 3C, when the first and second fastening portions 110 and 120 are bent toward each other, the first fastening portion 110 and the second fastening portion 120 To the frame 400 of two adjacent dies.

Thereafter, when the pressure applied to the first grip portion 140 and the second grip portion 150 is removed, an elastic restoring force is generated in a direction in which the first coupling portion 110 and the second coupling portion 120 are separated from each other (See arrows in Fig. 3C). The second extension portion 113, the third extension portion 115, the fifth extension portion 123 and the sixth extension portion 125 press the sides of the frame 400 of two adjacent dies by the elastic restoring force, .

That is, the frames 400 of the two adjacent molds can be fastened to each other due to the elastic restoring force of the form fastening means 100 according to the present embodiment. As a result, as shown in FIG. 6, the form fastening means 100 can fasten the formwork frame 400 with a single touch, thereby simplifying the construction process of the formwork and reducing the construction time of the formwork can do. In addition, noise is not generated in the process of fastening the frame 400 of the formwork, and the material cost can be reduced by lowering the loss rate.

The width of the first fastening part 110 and the width of the second fastening part 120 may be adjusted so that the formwork fastening means 100 according to the present embodiment can tightly fasten the frames 400 of two adjacent formwork. It is preferable that the width satisfies a certain condition.

4, the distance between the second extension portion 113 and the third extension portion 115 (the width of the first engagement portion 110) is defined as D1, and the distance between the second extension portion 113 and the third extension portion 115 (The width of the second fastening portion 120) between the first extension portion 123 and the sixth extension portion 125 is defined as D2 and the distance between the first extension portion 111 and the fourth extension portion 121 θ.

The distance D1 between the second extension portion 113 and the third extension portion 115 (the width of the first coupling portion 110) and the distance D1 between the fifth extension portion 123 and the sixth extension portion 125 (The width of the second fastening portion 120) may be equal to or larger than the width W of the frame 400 of two adjacent dies.

However, considering the angle θ (greater than 0 degrees and smaller than 180 degrees) formed by the first extension portion 111 and the fourth extension portion 121, D1 × cos (θ / 2) and D2 × cos (θ / 2 may be less than the width W of two adjacent frames 400. [

5, after the first fastening part 110 and the second fastening part 120 are inserted into the frames 400 of two adjacent molds, the first fastening part 110 and the second fastening part 120 are coupled to each other, When the pressure applied to the part 150 is removed, an elastic restoring force acts to return to the angle? Formed before the first extension part 111 and the second extension part 113 apply the pressure. In this case, the width D1 of the first fastening part 110 and the width D2 of the second fastening part 120 are equal to each other, The first fastening part 110 and the second fastening part 120 can be fixed while pressing the sides of the frame 400 of two adjacent molds due to the elastic restoring force.

Fig. 7 is a perspective view of the formwork fastening means according to the second embodiment of the present invention, Fig. 8 is a front view of the form fastening means shown in Fig. 7, Fig. 9 is a plan view of the form fastening means shown in Fig. And FIGS. 10A to 10C are perspective views illustrating a fastening process of the form fastening means shown in FIG.

As shown in FIGS. 7 to 10, the fastening means 200 for a formwork according to the present embodiment is constructed by fastening the frames 400 of two adjacent formwork, and includes a first extending portion 111, A second extension portion 113 bent perpendicularly from one end of the first extension portion 111 and a third extension portion 115 bent perpendicularly from the other end of the first extension portion 111 in parallel with the second extension portion 113, And a fifth extension part 123 bent vertically from one end of the fourth extension part 121. The second coupling part 120 includes a first coupling part 110, a fourth extension part 121, And an angle? 1 larger than 90 degrees and smaller than 180 degrees from the first extending portion 111 as viewed from a plane perpendicular to the second extending portion 113 and the fifth extending portion 123 And a connection part 130 connecting the end of the second extension part 113 and the other end of the fourth extension part 121 so as to be perpendicular to the fourth extension part 121. The first connection part 110, And the second fastening part 120 are connected to the frame 400, It is fastened.

The formwork fastening means 200 according to the present embodiment may be formed by extending one wire having elasticity. That is, the first fastening part 110, the second fastening part 120, and the connecting part 130, which are components of the formwork fastening means 200 according to the present embodiment, are formed by bending one wire, The frame 400 of the adjacent form can be fastened by one-touch using the elasticity of the frame.

The first fastening part 110 and the second fastening part 120 serve to fasten two adjacent frames 400 substantially.

Here, the first fastening part 110 includes a first extension part 111, a second extension part 113, and a third extension part 115. Specifically, the second extending portion 113 is bent and extended vertically from one end of the first extending portion 111, and the third extending portion 115 is extended from the first extending portion 111, And extends vertically from the other end of the portion 111. [ At this time, the second extension part 113 and the third extension part 115 extend so as to face each other in parallel. Therefore, the first fastening part 110 is formed in a U-shape as a whole.

The second fastening portion 120 includes a fourth extension portion 121 and a fifth extension portion 123. Specifically, the fifth extending portion 123 extends perpendicularly from one end of the fourth extending portion 121 and extends. Therefore, the second fastening part 120 may be formed as a whole.

Thus, the U-shaped first fastening part 110 and the L-shaped second fastening part 120 fasten two adjacent frames 400 (see FIG. 10C). The first extension part 111 of the first fastening part 110 and the fourth extension part 121 of the second fastening part 120 are in contact with the upper surface of the frame 400 and the first fastening part The second extended portion 113 and the third extended portion 115 of the first fastening portion 110 and the fifth extended portion 123 of the second fastening portion 120 may contact the side surface of the frame 400. [ 8, the length L2 of the fifth extending portion 123 may be shorter than the length L1 of the second extending portion 113. This may facilitate the fastening of the frame 400 The detailed description will be given later.

7, the distal end of the third extension part 115 of the first coupling part 110 may be bent away from the first extension part 111, and the second coupling part 120 Can be bent in a direction away from the fourth extending portion 121. As shown in Fig. The distal end of the third extension 115 of the first coupling part 110 may be bent outwardly of the first coupling part 110 and the distal end of the fifth extension part 123 of the second coupling part 120 may be bent, So that the end of the second fastening part 120 can be bent outward. The first and second fastening portions 110 and 120 can be fastened to the frame 400 by bending the distal end of the third extending portion 115 and the distal end of the fifth extending portion 123, .

The connection part 130 connects the first connection part 110 and the second connection part 120. The first extension portion 111 of the first coupling portion 110 and the fourth extension portion 121 of the second coupling portion 120 are disposed at the same height. The connecting portion 130 connecting the distal end of the second extension portion 113 and the fourth extension portion 121 of the second fastening portion 120 extends in a diagonal direction (see FIG. 9) when viewed from above (see the plane perpendicular to the second extending portion 113 and the fifth extending portion 123, see FIG. 9), the connecting portion 130 has the first extending portion 111 The distal end of the second extending portion 113 and the other end of the fourth extending portion 121 are connected to each other so as to be perpendicular to the fourth extending portion 121. 9) relative to the longitudinal direction of the first extension portion 111 and the second extension portion 113 and the fifth extension portion 123 (see FIG. 9) And connects the distal end of the second extending portion 113 and the other end of the fourth extending portion 121 so as to be perpendicular to the longitudinal direction of the fourth extending portion 121 will be.

A process of fastening the two adjacent dies by the dowel fastening means 200 according to the present embodiment including the first fastening part 110, the second fastening part 120 and the connecting part 130 will be described as follows. same.

First, as shown in FIGS. 10A to 10B, the first fastening part 110 is inserted into the frame 400 of two adjacent molds to be engaged.

Thereafter, the fourth extension portion 121 applies pressure to the second coupling portion 120 in a direction parallel to the first extension portion 111 (see the arrow in Fig. 10B), and as shown in Fig. 10C, The second fastening part 120 is inserted into the frame 400 of two adjacent dies and engaged. The first extension part 111 of the first coupling part 110 and the fourth extension part 121 of the second coupling part 120 are arranged at the same height and the second extension part 111 of the first coupling part 110 The length L2 of the fifth extension part 123 of the second fastening part 120 is shorter than the length L1 of the extension part 113. [ Therefore, even when the first fastening part 110 is coupled to the frame 400 of two adjacent molds, the second fastening part 120 can be coupled to the frame 400 of two adjacent molds.

Thereafter, when the pressure applied to the second fastening part 120 is removed, the first fastening part 110 and the second fastening part 120 generate an elastic restoring force in a direction to return to the original angle? 1 10C). The second extending portion 113, the third extending portion 115, the fifth extending portion 123, and the connecting portion 130 press the frame 400 side surfaces of two adjacent molds, do.

That is, the frames 400 of two adjacent formworks can be fastened to each other by the elastic restoring force of the form fastening means 200 according to the present embodiment. 11, the formwork fastening means 200 can fasten the formwork frame 400 with one-touch operation, thereby simplifying the construction process of the formwork and reducing the construction time of the formwork can do. In addition, noise is not generated in the process of fastening the frame 400 of the formwork, and the material cost can be reduced by lowering the loss rate.

FIGS. 12 to 13 are perspective views of the formwork fastening means according to the third embodiment of the present invention, and FIGS. 14A to 14C are side views showing the fastening process of the form fastening means shown in FIG.

12 to 14 show that the formwork fastening means 300 according to the present embodiment includes a center portion 311 and a vertically bent portion A first bent part 313 and a second bent part 315 bent perpendicularly from the other end of the central part 311 so as to be parallel to the first bent part 313, A cam portion 323 coupled to the distal end of the cam portion 323 by a rotation shaft 330 so as to be rotatable at a distal end of the cam portion 323 and protruding inwardly of the coupling portion 310 as it rotates, When the grip portion 325 is rotated after the fastening portion 310 is coupled to the frame 400, the inner side of the first bent portion 313 is pushed toward the inside of the cam portion 323 The frame 400 is pressed while the protruding length increases.

The form fastening means 300 according to the present embodiment may be formed of a metal structure having a predetermined stiffness or more. That is, the fastening portion 310 and the swivel portion 320, which are components of the formwork fastening means 300 according to the present embodiment, are formed of a metal structure having a predetermined stiffness or more. The fastening portion 310 and the swivel portion 320, (320) is coupled with the rotation axis (330) as a reference, and the frame (400) of the adjacent form can be fastened at one-touch as the rotation unit (320) rotates.

The fastening part 310 serves to fasten two adjacent frames 400 substantially. Here, the fastening portion 310 includes a central portion 311, a first bent portion 313, and a second bent portion 315. Specifically, the first bent portion 313 extends perpendicularly from one end of the center portion 311 and extends from the other end of the center portion 311, and the second bent portion 315 extends vertically from the other end of the center portion 311 And is bent and extended. At this time, the first bent portion 313 and the second bent portion 315 extend parallel to each other. Accordingly, the fastening portion 310 is formed in a U-shape as a whole.

Thus, the U-shaped fastening part 310 fastens two adjacent frames 400 (see FIG. 14B). The central portion 311 of the fastening portion 310 contacts the upper surface of the frame 400 and the first bent portion 313 and the second bent portion 315 of the fastening portion 310 contact the upper surface of the frame 400 It is possible to contact the side surface.

Meanwhile, as shown in FIG. 13, the first bent portion 313 may include a first member 313a and a second member 313b. The first member 313a and the second member 313b may extend parallel to each other from one end of the central portion 311 and a predetermined space may be formed between the first member 313a and the second member 313b 313c. The cam portion 323 can be coupled to the rotating shaft 330 between the predetermined spaces 313c. That is, the cam portion 323 can be coupled with the rotation shaft 330 between the distal end of the first member 313a and the distal end of the second member 313b.

The distal end of the first bent portion 313 (the end of the first member 313a and the end of the second member 313b) is formed with a protruding portion 314 protruding in the direction away from the second bent portion 315 . By forming the projecting portion 314 having a sufficient width at the distal end of the first bent portion 313 (the end of the first member 313a and the end of the second member 313b), the cam portion 323 can be prevented from protruding 314 by a rotation shaft 330. [0031]

In addition, a contact portion 317 protruding inward from the fastening portion 310 may be formed at the distal end of the second bent portion 315. The contact portion 317 serves to press the frame 400 opposite to the cam portion 323 when the cam portion 323 coupled to the end of the first bent portion 313 presses the frame 400 .

The rotation unit 320 serves to fix the fastening unit 310 to the frame 400. Here, the pivot portion 320 includes a cam portion 323 and a handle portion 325.

Specifically, the cam portion 323 is coupled to the rotation shaft 330 so as to be rotatable at the distal end of the first bent portion 313, and protrudes toward the inside of the first bent portion 313 as it rotates about the rotation axis 330 The length changes. Here, although the specific shape of the cam portion 323 is not particularly limited, the side surface may be formed as a curved surface having a curvature of 2 or more so that the length protruding to the inside of the coupling portion 310 gradually changes. 14A to 14C, the cam portion 323 has a length L3 protruding in one direction with respect to the rotation axis 330 so that the length of the cam portion 323 protruding inward of the coupling portion 310 changes as the rotation May have a length L4 protruding in the other direction with respect to the rotating shaft 330. [ On the other hand, the grip portion 325 extends from the cam portion 323, so that the user can grasp the grip portion 325 and rotate the cam portion 323. 14B). At this time, the grip portion 325 is in contact with one end of the center portion 311 of the fastening portion 310, and the cam portion (not shown) protruding inward of the first bent portion 313 323 can be maximized. That is, when the handle 325 is stopped, the cam portion 323 protrudes to the maximum, so that the frame 400 can be most strongly pressed and fixed. On the other hand, although the specific shape of the handle 325 is not particularly limited, the handle 325 may be formed in a rod shape and the distal end may be bent upward in the central portion 311. [ The end of the handle 325 is bent in the upward direction of the central portion 311 to prevent the handle 325 from projecting more than necessary so that the formwork fastening means 300 is fastened to the frame 400 The overall size can then be minimized.

A process of fastening the two adjacent dies with the dowel fastening means 300 according to the present embodiment including the coupling portion 310 and the dowel portion 320 will be described below.

First, as shown in FIG. 14A, the fastening part 310 is inserted into the frame 400 of two adjacent dies and engaged. At this time, the handle portion 325 can be formed at an angle of about 180 degrees with the first bent portion 313 so that the protruding length of the cam portion 323 is minimized to the inside of the first bent portion 313.

14B, when the handle portion 325 is rotated in a direction approaching the first bent portion 313, the protruding length of the cam portion 323 toward the inside of the first bent portion 313 becomes . The length of the cam portion 323 protruding inward of the first bent portion 313 can be maximized when the handle portion 325 comes into contact with one end of the center portion 311 and stops rotating. Accordingly, the form clamping means 300 according to the present embodiment can clamp the frame 400 of two adjacent molds while pressing the cam portion 323.

14C, when the grip portion 325 is rotated in the direction away from the first bent portion 313, the protruding length of the cam portion 323 toward the inside of the first bent portion 313 is reduced do. At this time, the degree to which the cam portion 323 presses the frames 400 of the adjacent two formworks becomes weak, so that the form fitting means 300 according to the present embodiment can be separated from the frames 400 of two adjacent formworks have.

The frames 400 of two adjacent molds can be fastened to each other by using the cam-shaped cam portion 323 of the formwork fastening means 300 according to the present embodiment. As shown in FIG. 15, the form fastening means 300 can fasten the formwork frame 400 by one-touch operation, thereby simplifying the construction process of the formwork and reducing the construction time of the formwork can do. In addition, noise is not generated in the process of fastening the frame 400 of the formwork, and the material cost can be reduced by lowering the loss rate.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification or improvement is possible.

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 appended claims.

100, 200, 300: fastening means for formwork 400: frame of formwork
110: first fastening part 111: first extension part
113: second extension part 115: third extension part
120: second fastening part 121: fourth extension part
123: fifth extension part 125: sixth extension part
130: connection part 140: first handle part
150: second handle part 310: fastening part
311: center portion 313: first bent portion
313a: first member 313b: second member
313c: a predetermined space 314:
315: second bent portion 317: contact portion
320: turning portion 323: cam portion
325: Handle portion 330:
D1: the distance between the second extension and the third extension
D2: Distance between the fifth extension and the sixth extension
[theta]: an angle formed by the first extending portion and the fourth extending portion
&thetas; 1: an angle formed by the first extended portion and the connecting portion
L1: length of the second extension portion
L2: Length of the fifth extension part
L3: Length protruding from the cam in one direction with respect to the axis of rotation
L4: Length protruding from the cam in the other direction with respect to the rotating shaft
W: Width of the frame

Claims (17)

A fastening means for a form for fastening a frame of two adjacent formworks,
A first extending portion including a first extending portion, a second extending portion bent vertically from one end of the first extending portion, and a third extending portion bent perpendicularly from the other end of the first extending portion in parallel with the second extending portion part;
A second extension including a fourth extension, a fifth extension vertically bent from one end of the fourth extension, and a sixth extension vertically bent from the other end of the fourth extension parallel to the fifth extension, part;
A connecting portion connecting the distal end of the second extending portion and the distal end of the fifth extending portion such that the first extending portion and the fourth extending portion are larger than 0 degrees and smaller than 180 degrees;
A first handle portion extending from a distal end of the third extension portion in a direction away from the first extension portion; And
A second handle extending from a distal end of the sixth extension in a direction away from the fourth extension;
Lt; / RTI >
Wherein the first fastening portion and the second fastening portion are fastened to the frame.
The method according to claim 1,
Wherein the first fastening portion, the second fastening portion, the connecting portion, the first grip portion, and the second grip portion are formed by extending one wire having elasticity.
The method according to claim 1,
And applying pressure in a direction in which the first handle and the second handle are brought close to each other to couple the first fastening portion and the second fastening portion to the frame,
When the pressure applied to the first handle portion and the second handle portion is removed, the second extending portion, the third extending portion, the fifth extending portion, and the sixth extending portion, Fastening means for pressurizing formwork.
The method according to claim 1,
Wherein the first fastening portion and the second fastening portion are formed symmetrically with respect to a plane perpendicular to the connecting portion.
The method according to claim 1,
A distance between the second extending portion and the third extending portion is defined as D1,
A distance between the fifth extension and the sixth extension is defined as D2,
When an angle formed by the first extending portion and the fourth extending portion is defined as &thetas;
D1 x cos (? / 2) and D2 x cos (? / 2) are smaller than the width of the frame.
A fastening means for a form for fastening a frame of two adjacent formworks,
A first extending portion including a first extending portion, a second extending portion bent vertically from one end of the first extending portion, and a third extending portion bent perpendicularly from the other end of the first extending portion in parallel with the second extending portion part;
A second fastening portion including a fourth extending portion and a fifth extending portion vertically bent from one end of the fourth extending portion; And
The second extension portion and the fifth extension portion are formed so as to be at an angle smaller than 90 degrees and smaller than 180 degrees with respect to the first extension portion and perpendicular to the fourth extension portion when viewed from a plane perpendicular to the second extension portion and the fifth extension portion, A connecting part connecting the distal end of the second extension part and the other end of the fourth extension part;
Lt; / RTI >
Wherein the first fastening portion and the second fastening portion are fastened to the frame.
The method of claim 6,
Wherein the first fastening portion, the second fastening portion, and the connection portion are formed by extending one wire having elasticity.
The method of claim 6,
After coupling the first fastening portion to the frame,
The fourth extension portion applies pressure to the second fastening portion in a direction parallel to the first extension portion, and after coupling the second fastening portion to the frame,
And the second extending portion, the third extending portion, and the fifth extending portion press the frame by an elastic restoring force when the pressure applied to the second fastening portion is removed.
The method of claim 6,
And the length of the fifth extending portion is shorter than the length of the second extending portion.
The method of claim 6,
The distal end of the third extending portion is bent in a direction away from the first extending portion,
And a distal end of the fifth extension portion is bent in a direction away from the fourth extension portion.
A fastening means for a form for fastening a frame of two adjacent formworks,
A fastening portion including a center portion, a first bent portion bent perpendicularly from one end of the center portion, and a second bent portion bent perpendicularly from the other end of the center portion in parallel with the first bent portion; And
A rotation part coupled to the end of the first bent part by a rotation axis so as to be rotatable and including a cam part whose length is changed to protrude inward of the coupling part as it rotates and a handle part extending from the cam part;
Lt; / RTI >
Wherein the fastening portion is coupled to the frame, and when the grip portion is rotated, the projecting length of the cam portion is increased toward the inside of the first bent portion to press the frame.
The method of claim 11,
Wherein when the knob is brought into contact with one end of the center portion and the rotation is stopped, the length of the cam portion protruding to the inside of the first bent portion is maximized.
The method of claim 11,
Wherein the grip portion has a distal end bent upward in the central portion.
The method of claim 11,
Wherein the first bent portion includes:
And a first member and a second member extending parallel to each other from one end of the central portion,
Wherein a predetermined space is provided between the first member and the second member, and the cam is coupled to the predetermined space by the rotation shaft.
The method of claim 11,
A protrusion protruding in a direction away from the second bent portion is formed at a distal end of the first bent portion,
And the cam portion is coupled to the protruding portion by the rotation shaft.
The method of claim 11,
The cam portion
Wherein a length of the protrusion protruding in one direction with respect to the rotation axis is longer than a length protruding in the other direction with respect to the rotation axis.
The method of claim 11,
And a contact portion protruding inward of the fastening portion is formed at a distal end of the second bent portion.

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