JP4091678B2 - Binder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a plate material used for furniture, interiors, partitions, temporary scaffolds, guardrails, civil engineering and building materials, etc., and plate-like members having U-shaped grooves cut on both surfaces are joined together by a connecting member. The present invention relates to a coupler that is used at the time, which is firmly inserted into a groove having a U-shaped cross section and rotated against the inner surface of the groove to firmly fix the connecting member.
[0002]
[Prior art]
Conventionally, nails, screws, rivets, etc. have been used to join various wood, metal and plastic plate-like members used for furniture, interiors, partitions, temporary scaffolds, guardrails, civil engineering and construction materials. I came. However, even though these coupling means cannot be disassembled or reassembled or can be reused, there are problems such as taking time and facilitating rattling by using the same groove / hole or screw hole.
Also, in terms of strength, there is no contrivance to increase the strength with a small number of members, and the purpose is simply to join, and the strength of the joint is not a problem.
[0003]
In addition, since a connecting member or a connecting tool for connecting a plurality of members (particularly plate members) comes out on the side wall surface of the member, there is a disadvantage that the processing of the end face of the corner becomes complicated in the connected state. Moreover, even if the connecting member and the coupler have a simple structure, since the coupler is a structure that can be attached to the outer wall surface of the member, there is a disadvantage that the coupler is finished in a state of protruding from the plate-like member. .
[0004]
[Problems to be solved by the invention]
The present invention has been conceived to eliminate the disadvantages of the prior art. A U-shaped groove is cut in a plate-like member, connected by a connecting member fitted in the groove, and fixed by a coupler. An object of the present invention is to provide a coupler that has a strong coupling force, is rotated so as to be easily disassembled and assembled, and is pressed against an inner wall of a groove to press and fix a plate member.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a coupler according to the present invention has a U-shaped groove formed on both surfaces of a plurality of plate members composed of a first member and a second member, and has the same cross-sectional shape as the groove. A coupling structure of a plurality of plate members having a structure in which a coupling member having two legs is fitted into the groove and the coupling tool is fitted into a recess provided in the leg and locked. And a spiral protrusion integrally projecting around a cylindrical body having substantially the same width as the recess.
Further, after inserting into the groove, the coupler is rotated and pushed in the bottom direction of the groove, and the projecting helical protrusion is firmly pressed against the side wall to firmly fix the plurality of plate members, and the cylindrical shape On the upper end surface, a minus-type, plus-type or box-type hole for inserting a tip of a screw driver for rotating and pushing in the bottom direction of the groove is formed.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to embodiments shown in the drawings. FIG. 1 is a plan view showing a coupler of the present invention, and FIG. 2 is a side view. FIG. 3 is an exploded perspective view showing the usage state of the coupler. 4 is a plan view of another embodiment, and FIG. 5 is a side view of another embodiment. As shown in FIG. 3, the coupling structure used by the coupler 10 is formed by forming grooves 11a, 12a, 12b having a U-shaped cross section on both surfaces of a plurality of plate members composed of a first member 11 and a second member 12. In this structure, a connecting member 13 in which a pair of legs 14, 15 and 16, 17 having the same cross-sectional shape as the groove is connected in a perpendicular direction is slidably fitted into the groove and locked by the coupler 10. The connecting member 13 is provided with recesses 14a, 15a, 16a, 17a toward the outer surface of each leg. Since the leg has the same cross-sectional shape as the groove, the width of the recess is substantially the same as the width of the groove, but the width in the longitudinal direction is longer than the width. Thereby, the coupler which consists of the cylindrical body 1 which is not a perfect circle of the below-mentioned cross section can be inserted.
[0007]
The coupler 10 includes a cylindrical body 1, two protrusions 2 a and 2 b that are spirally provided on the circumferential surface of the cylindrical body, and a hole 4 provided on the upper end surface. The diameter m of the cylindrical body 1 of the coupler is formed to be substantially the same as the width of the U-shaped grooves 11a, 12a, 12b cut on both surfaces of the plate member. This width is substantially the same as the width of the recess provided in the leg of the connecting member.
In the embodiment shown in the drawings, the protrusions are provided at two positions on the circumferential surface of the cylindrical body 1 so as to face each other by 180 degrees, but the number of protrusions may be any one. The protrusions 2a and 2b are protrusions provided at positions facing the peripheral side surface of the cylindrical body 180 by 180 degrees, and have a structure in which a stepped slope is integrally formed on the peripheral side surface in a spiral shape. The width n of the portion provided with the protrusions 2a and 2b is configured to be larger than the diameter m of the cylindrical body.
[0008]
When mounting the coupler 10, the width n of the diameter provided with the protrusions cannot be fitted into the grooves 11a, 12a, 12b or the recesses 14a, 15a, 16a, 17a. It is inserted along the longitudinal direction of the groove or recess in the direction of the diameter m.
[0009]
The hole 4 is a groove formed in the upper end surface of the coupler 10, and has a structure in which the tip of a screw driver is fitted into the hole 4 and the coupler is rotated. The shape of the hole 4 is formed in a minus type, a plus type, or a box type (socket type) according to the type of the tip of the screwdriver. In the embodiment shown in the figure, a box (socket) type hole 4 is engraved. It is also possible to cut into a minus plus type combined type as another type of hole.
[0010]
In use, as shown in the exploded perspective view of FIG. 3, the leg 14 which is one of the two legs of the connecting member 13 is inserted into the groove (broken line) on the back side of the first member 11, and at the same time, the leg 15 is placed on the front side. Each is inserted into the groove 11a from the tip end of the leg, and is advanced through the groove until the base 17b of the leg 17 comes into contact with the lateral groove 11b provided in the first member 11 and stops. Next, the pair of legs 16 and 17 connected to the legs 14 and 15 at right angles are inserted horizontally into the grooves 12b and 12a of the second member 12 from the tips. First, the leg 16 is inserted into the lower groove 12a, and then the leg 17 is inserted into the upper groove 12a, and the end surface of the second member 12 is inserted into the second member 12 until the end surface of the second member reaches the base of the leg. The one member 11 stops at a right angle. In the state in which the first member 11 and the second member are coupled by the coupling member 13, the recesses 14a, 15a, 16a, and 17a provided on the respective legs of the coupling member 13 outwardly are the surfaces of the first member and the second member. And it opens as a square hole on the back. The coupler 10 made of a circular body is inserted into the holes 14a, 15a, 16a, and 17a.
[0011]
The coupling tool 10 is formed by fitting a pair of U-shaped legs of the connecting member into the grooves of the first and second plate members, and then forming the holes 4 along the direction of the diameter m in the longitudinal direction of the recesses of the legs. Insert outside. Next, the tip of the screw driver is inserted into the hole 4 provided at the upper end of the inserted coupler 10, and the coupler is rotated 90 degrees. Thereby, the cylindrical body 1 rotates 90 degrees, and the portion of the width n provided with the projection of the cylindrical body 1 firmly contacts the inner walls of the grooves 11a, 12a, and 12b. The coupler 10 is provided with a stepped spiral projection in the clockwise direction, which is the direction of rotation of the driver. Therefore, when the connector 10 is rotated by the driver, it is rotated and pushed so as to advance spirally toward the bottom. Then, the portion with the projection having a large diameter strongly presses and presses both inner walls to firmly fix the first member and the second member via the connecting member.
[0012]
The coupler 10 is brought into pressure contact with the inner wall of the groove 11a. Therefore, each leg 14, 15, 16, and 17 will not come off from the 1st member 11 or the 2nd member 12, and the 1st member 11 and the 2nd member 12 will be combined. Since the surface of the connecting member 13 and the surfaces of the first member 11 and the second member 12 are configured to be the same surface, the coupling tool does not protrude from the member, and the appearance is simple and firmly fixed. It is groundbreaking as a structure.
[0013]
4 and 5 show another embodiment of the coupler according to the present invention. The coupler 30 includes a slightly trapezoidal cylindrical body 31 and two protrusions that spirally project from the circumferential surface of the cylindrical body. 32a and 32b and the hole 34 provided in the upper end surface. The diameter of the cylindrical body of the coupler is formed to be substantially the same as the width of the U-shaped grooves 11a, 12a, 12b cut on both surfaces of the plate member. The protrusions 32a and 32b are protrusions provided at positions that face the peripheral side surface of the cylindrical body 1 at 180 degrees, and have a configuration in which a stepped slope is integrally formed on the peripheral side surface in a spiral shape. Since the width of the diameter at which the protrusion is provided is thick, it is displaced by 90 degrees and is fitted along the longitudinal direction of the groove or recess in the direction of the diameter of the cylindrical body 31. The hole 34 is a screw driver hole, and has a structure in which the coupler is rotated to advance to the bottom of the advancing groove. In this embodiment, the shape of the hole 34 is a negative type in accordance with the type of the tip of the screwdriver.
[0014]
【The invention's effect】
As explained above, according to the coupler according to the present invention,
1. Since the connecting member is fitted in the groove of the first member and the second member, and the coupler having a simple structure is firmly fixed by rotating and pressing the inner wall of the groove, the connection of screws or nuts No tools are needed. Moreover, there exists an advantage which can provide the coupling | bonding structure of the versatile member which a coupling tool does not protrude outside from a side wall surface.
2. Since the coupling has a structure in which spiral protrusions are integrally formed on the outer peripheral surface of the cylindrical body, the plurality of plate members can be brought into pressure contact with the inner wall of the groove very easily by turning 90 degrees with a screw driver. It can be firmly connected via the connecting member.
3. Compared to the complicated method of the conventional coupler, the coupler of the present invention is an operation that is simply an operation of rotating the hole provided at the tip with a screw driver by 90 degrees, and the operation is simple and A sufficiently strong bond can be obtained.
[Brief description of the drawings]
FIG. 1 is a plan view of a coupler according to the present invention.
FIG. 2 is a side view of the coupler of the present invention.
FIG. 3 is an exploded perspective view showing a configuration in which a plurality of members are coupled by a connecting member using the coupler of the present invention.
FIG. 4 is a plan view of another embodiment according to the present invention.
FIG. 5 is a side view of another embodiment according to the present invention.
[Explanation of symbols]
1,31 Cylindrical bodies 2a, 2b, 32a, 32b Protrusions 4, 34 Hole m Diameter of cylindrical body n Diameter of projections 10, 30 Joint 11 First member 11a, 12a, 12b U-shaped groove 11b Horizontal groove 12 Second member 13 Connecting member 14a, 15a, 16a, 17a Concave portion

Claims (3)

A groove having a U-shaped cross section is formed on both surfaces of a plurality of plate members composed of the first member and the second member, and a connecting member having two legs having the same cross-sectional shape as the groove is fitted into the groove. In a coupling structure of a plurality of plate members having a structure in which a coupling tool is fitted and locked in a recess provided in the leg, the coupling tool has a spiral projection around a cylindrical body having substantially the same width as the groove and the recess. A coupling device characterized in that it is configured to project integrally. The fitting made of the cylindrical body is inserted into the groove and the recess, and rotated and pushed in the bottom direction of the groove, and the protruding spiral protrusion is firmly pressed against the inner wall of the groove to firmly fix the plurality of plate members. The coupling device according to claim 1, wherein 2. The coupling device comprising the cylindrical body, wherein a hole for inserting a tip of a screw driver for rotating and pushing the cylindrical body in the direction toward the bottom of the groove is cut in the upper end surface of the cylindrical body. Binder

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