KR101061714B1 - Prefabricated panel fasteners and its manufacturing method - Google Patents

Abstract

The present invention relates to a fastener and a method for manufacturing the fastener for tightly and rigidly connecting the prefabricated panel, the locking pin is horizontally installed on one body, the hook is engaged with the locking pin is formed on the other body by a wrench In the fastener in which the driven cam locker is inserted and installed, the body of the fastener is extruded and cut into aluminum, and a base is integrally formed at both edges of the support wall, and a gap is formed between the support walls. One or more plate-shaped stoppers are integrally formed on the outer circumference of one support wall, and the ends of the stopper and the support wall are cut and cut into lengths at which ends can be in contact with each other when the connecting edges of the stopper and the support walls are inwardly formed at both ends of the base in the longitudinal direction. Fasteners comprising the bent end of the supporting support wall to form a junction portion and its manufacture Provide a method.

Fasteners, panels, cam lockers, hooks

Description

Fasteners for prefabricated panel connection and manufacturing method thereof

The present invention relates to a fastener and a method of manufacturing the same for tightly and firmly connecting a prefabricated panel.

Recently, the demand for prefabricated structures connecting panels is increasing due to the advantages of ease of assembly and rapid construction, and it is very important that the panels and panels are closely and firmly connected to each other. If there is a gap in the interior and the outside is not completely blocked because the moisture inside the panel, or in the case of a low-temperature warehouse cold air inside the panel counts to the outside because the refrigeration and freezing effect is deteriorated.

In order to solve this problem, a fastener is used between the panel and the panel to closely adhere to each other during the connection process. An example thereof will be described with reference to FIG. 1.

1 is a perspective view showing a conventional assembled panel connecting fastener, which is recessed in one side panel 1 and provided with a cam locker 12 having a hook 12a pivoted in a 90 ° direction by a hexagon wrench. And a second fastener 20 provided with a first fastener 20 and a pin 24 recessed and supported by the other panel 2 and engaged with the hook 12a of the first fastener 20.

In the figure, reference numeral 14a is a hexagon wrench insertion hole.

However, the conventional connection member as described above is mainly made of a hard synthetic resin in consideration of the convenience of production and manufacturing cost, high risk of deformation and breakage when an external shock such as temperature change, vibration or typhoon is applied, and if the panel is broken in this way In addition, internal and external confidentiality is not maintained and, in extreme cases, may cause the prefabricated structure to collapse.

As a technique for solving this problem, Korean Utility Model Registration No. 20-0337831 describes a configuration for insert injection of a metal reinforcement in the process of manufacturing a hook.

However, there is a problem that the fastener does not have sufficient strength just by inserting the metal reinforcement into the hook as described above.

The present invention aims to provide fasteners with improved strength, easy manufacture, and long life.

Features of the present invention for achieving the above object, a fastener to which the locking pin is horizontally installed on one side of the body, the hook is engaged with the locking pin is formed on the other body is inserted into the cam locker driven by the wrench is installed. In the body of the fastener is extruded and cut by aluminum, the base is formed vertically on both edges of the support wall integrally formed between the support wall, one or more plate-shaped on the outer periphery of the support wall The stopper is integrally formed, and when the connecting edges of the stopper and the support wall are bent inwardly at both ends in the longitudinal direction of the base, the ends are cut to a length such that the ends can be in contact with each other, and the cut support wall is bent so as to contact the end. To form a junction, and the base is bisected to form a fastening groove having a wide inner side and a narrow entrance at the end of one side base. End of the formation, and the other base in the longitudinal direction of the device is formed by a coupling protrusion to be inserted into the clamping groove a in a longitudinal direction to form a combined put into a locking projection in the locking groove.

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In addition, another feature of the present invention is a method for manufacturing a fastener body, wherein the body is formed with a plurality of support walls vertically spaced apart from each other at both ends of the base of the plate shape and at least one stopper horizontally on the outer circumference of the support wall. Extruding the chassis using aluminum to protrude; Cutting the chassis in correspondence with the size of the fastener and then cutting the stopper and the connection edges of the support wall in the longitudinal ends of the base to a length such that the ends can be in contact with each other; As described above, there is provided a body manufacturing method including a step of bending the end of the supporting wall cut to contact each other.

According to the present invention configured as described above, the body can be manufactured only by the extrusion process, the cutting process and the bending process, so that the chassis can be manufactured in a simple process without resorting to injection molding.

In addition, since an aluminum chassis having a very high strength compared to resin is used, deformation or breakage does not occur during use, and since aluminum is used, rust is not easily generated even when rainwater is infiltrated, thereby extending the life.

In addition, the stopper is formed integrally extended to the outer periphery of the support wall, the width can also be arbitrarily adjusted during the extrusion process, it is possible to form a wider stopper has the effect of significantly improving the support force of the fastener.

Hereinafter, an embodiment of the present invention will be described in more detail.

Figure 2 is a cross-sectional view showing an embodiment of a prefabricated panel connection fastener according to the present invention, Figure 3 is a perspective view showing the body of the fastener of Figure 2, Figures 4 and 5 is a cross-sectional view according to another embodiment of the present invention 6A to 6D are diagrams illustrating the cam locker.

Prefabricated panel connection fastener according to the present invention is installed on the one side panel (P1) recessed cam locker 120 having a hook 110 is rotated in a 90 ° direction by a hexagon wrench body (hereinafter referred to as the first body). 130 and a locking pin 210 recessed and supported by the first fastener 100 installed inside and the other panel P2 and catching the hook 110 of the first fastener 100 are referred to as a body (hereinafter referred to as a second body). It consists of a second fastener 200 provided at the upper end of the box, 230.

In the above configuration, the bodies 130 and 230 of the first and second fasteners 100 and 200 are extruded and cut into aluminum, and the base 132 (to both sides of the bodies 130 and 230). 232 are formed respectively, and support walls 134 and 234 are integrally formed perpendicularly to both edges of the bases 132 and 232 so that a gap is formed between the support walls 134 and 234. One or more plate-shaped stoppers 136 and 236 are integrally formed on the outer circumference of the support walls 134 and 234, and the stoppers 136 and 236 described above at both ends of the base 132 and 232 in the longitudinal direction. ) And the connecting edges of the support walls 134 and 234 are cut into a length that the ends can be in contact with each other when bent inward, and the cut support walls 134 and 234 are bent so that the ends are in contact with each other and the joint 138 (238) was formed.

As a specific example, as shown in FIGS. 2 to 3, the first and second bodies 130 and 230 of the first and second fasteners 100 and 200 are formed at both edges of the bases 132 and 232. The support walls 134 and 234 are formed integrally with each other so that a gap is formed between the support walls 134 and 234, and the bases 132 and 232 are formed on the outer circumference of the support walls 134 and 234. A plurality of plate-shaped stoppers 136 and 236 are integrally formed on the sides of the base and the outer circumferences of the support walls 134 and 234 spaced apart from each other, and at both ends of the bases 132 and 232 in the longitudinal direction. The connection edges of the stoppers 136 and 236 and the support walls 134 and 234 are cut and bent inward to form the joints 138 and 238.

Figure 3 shows before the drilling holes for the cam locker and the locking pins.

As another embodiment, as shown in FIG. 4, the first and second bodies 130 and 230 of the first and second fasteners 100 and 200 are perpendicular to both edges of the bases 132 and 232. The support walls 134 and 234 are integrally formed so that a gap is formed between the support walls 134 and 234, and the support walls 134 are formed on the first body 130 of the first fastener 100. The plate-shaped stopper 136, 236 is integrally formed at a position spaced apart from the base 132, the second body 230 of the second fastener 200 is plate-shaped to the side of the base 232 described above. The stopper 236 is integrally formed, and the connecting edges of the stoppers 136 and 236 and the support walls 134 and 234 are cut at both ends in the longitudinal direction and bent inward to join the joints 138 and 238. To form.

Meanwhile, as shown in FIG. 5, the base 132 is bisected to form a fastening groove 133a having a wide inner side and a narrow entrance at the end of one side base 132a in the longitudinal direction of the base 132, and the other side. At the end of the base 132b, a fastening protrusion 133b inserted into the fastening groove 133a is formed in the longitudinal direction, and the fastening protrusion 133b is inserted into the fastening groove 133a to be coupled.

In the exemplary embodiment of the present invention, only the base of the body on which the cam locker is installed is described as an example, but the base of the body on which the locking pin is installed may also be bisected.

And, in the cam rocker 120 as shown in Figs. 6a to 6d, the wrench hole 121 is drilled eccentrically on one side and the stop protrusion 122 is formed to limit the rotation radius of the hook 110 on the edge. Cam 123 and the hook 110 is fitted into the ring-shaped insertion groove 124 formed on the edge of the cam 123.

Hook 110 in the above is formed as a hook 112 is formed on one side formed in a circular ring shape, as shown in Figure 6a and spaced apart from each other toward the center of the through hole 114 at any location of the through hole 114 side of the circular ring. The cutting piece 116 is formed to be bent upwardly and then engaged with the stop protrusion 122 of the cam 120.

6B to 6D, the cam 123 is divided into two, and one side cam 123a is formed in a circular shape so that the wrench hole 121 is drilled eccentrically and the left and right sides of the wrench hole 121 are formed. The riveting protrusion 125a is protruded symmetrically and a half of the insertion groove 124 into which the hook 110 is inserted is formed at the edge thereof, and the other side cam 123b is the wrench hole 121 of the one side cam 123a. The same wrench hole 121 is drilled at the position corresponding to the) and the riveting hole 125b is drilled at the position corresponding to the riveting protrusion 125a and the hook 110 is inserted at the edge of the insertion groove 124. The other half is formed, and the stop protrusion 122 of the hook 110 is integrally formed at one edge of any one of the two cams 123a and 123b formed in the other cam 123b. Is formed.

In this way, the plurality of cams 123a and 123b bifurcated so that the riveting protrusion 125a is inserted into the riveting hole 125b, and then the riveting protrusion 125a is opened to be coupled to each other. In this process, the hook 110 is divided into two and is inserted into the insertion groove 124 formed by assembling each other.

In addition, in the method for manufacturing a fastener body according to the present invention, a plurality of support walls are vertically spaced apart from each other at both ends of a plate-shaped base, and at least one stopper protrudes horizontally from the outer circumference of the support wall. Extrusion molding; Cutting the chassis in correspondence with the size of the fastener and then cutting the stopper and the connection edges of the support wall in the longitudinal ends of the base to a length such that the ends can be in contact with each other; And bending the end portions of the supporting wall portions cut as described above to be in contact with each other.

On the other hand, as described above, the body is formed by cutting a chassis that is linearly formed to have a base, a support wall, and a stopper by an extrusion method by aluminum. Looking at the extrusion process of the chassis in more detail, first, aluminum as a raw material The ingot is melted to form a billet having a predetermined diameter and length. Such billets are made of a predetermined diameter and length to extract the chassis through extrusion.

Then, the billet is heated to a predetermined temperature (for example, about 430 ° C.) to perform a compression operation. Heating the billet in this way is to facilitate the extrusion operation.

Thus, when extruding a billet heated to a predetermined temperature in an extruder, a mold having a shape of a base, a support wall, and a stopper is mounted on the extruder. Therefore, when the billet passes through the mold, a chassis having a predetermined shape is made.

Subsequently, heat treatment is performed to reinforce the mechanical strength of the chassis drawn through the extrusion operation, and the coating process is performed to prevent corrosion on the surface of the chassis.

After manufacturing the body as described above is installed by inserting the locking pin and the cam locker.

On the other hand, in the case of a base having a bipartite body, a process of assembling an extruded and cut chassis is further added.

1 is a perspective view showing a fastener for connecting a conventional assembled panel

Figure 2 is a cross-sectional view showing an embodiment of the prefabricated panel connection fastener according to the present invention

3 is a perspective view showing the body of the fastener of FIG.

4 and 5 are cross-sectional views according to another embodiment of the present invention.

6A shows a hook

6B is a cross-sectional view showing the assembled state of the cam;

6C-6D are top views of the cam

Claims (4)

The first fastener installed inside the body (hereinafter referred to as the first body 130) having a cam lock 120 provided with a hook 110 recessed in one side panel P1 and rotated in a 90 ° direction by a hexagon wrench. 100 and a locking pin 210 recessed and supported by the other panel P2 and the hook 110 of the first fastener 100 are provided at the upper end of the body (hereinafter referred to as the second body 230). In the prefabricated panel connection fasteners composed of two fasteners 200, The first and second bodies 130 and 230 are extruded and cut into aluminum, and bases 132 and 232 are formed at both sides of the bodies 130 and 230, respectively, and the base 132 is formed. Support walls 134 and 234 are integrally formed vertically at both edges of the support wall 232, and a gap is formed between the support walls 134 and 234, and the outer circumference of the support walls 134 and 234 is formed. One or more plate-shaped stoppers 136 and 236 are formed integrally with the stoppers 136 and 236 and the support walls 134 and 234 at both longitudinal ends of the base 132 and 232. When bending the connecting edge of the inner side is cut to the length that the end can be in contact with each other and the bent end of the cut support wall (134, 234) to form a junction 138, 238, The base 132 and 232 are bisected to form a fastening groove 133a having a wide inner side and a narrow entrance at the end of one side base 132a in the longitudinal direction of the base 132 and 232, and the other side base ( Fasteners for prefabricated panel connection, characterized in that formed in the longitudinal direction at the end of the 132b) fastening protrusions (133b) inserted into the fastening groove (133a). delete According to claim 1, wherein the cam rocker 120 has a wrench hole 121 is drilled eccentrically on one side and a stop protrusion 122 for limiting the rotation radius of the hook 110 on the edge protrudes and formed Cam 123 for coupling the riveting protrusion (125a) formed on one side and the riveting hole (125b) formed on the other side by opening the riveting projection (125a) and the ring-shaped formed on the edge of the cam 123 Fasteners for prefabricated panel connection, characterized in that consisting of hook 110 is inserted into the insertion groove (124). In the method of manufacturing a prefabricated panel connection fastener is installed horizontally on one side of the body, the hook is formed on the other body to engage the engaging pin is inserted into the cam locker driven by a wrench, The whole body is a process of extruding the chassis using aluminum so that a plurality of support walls are vertically spaced apart from each other vertically at both ends of the base of the plate-like base, and at least one stopper protrudes horizontally on the outer circumference of the support wall; Cutting the chassis in correspondence with the size of the fastener and then cutting the stopper and the connection edges of the support wall in the longitudinal ends of the base to a length such that the ends can be in contact with each other; Method for producing a prefabricated panel connection fastener comprising the step of bending the end of the support wall cut as described above in contact with each other.

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