JP2009210036A - Plate material connection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plate material connection device for easily threading and connecting a screw into a hole of a screw receiving tool. <P>SOLUTION: The plate material connection device comprises the synthetic resin screw receiving tool A, two plate members B, C to be joined to each other at a right angle, and the long screw D. The screw receiving tool A has a different diameter head portion 2 having a large diameter integrally formed at the upper end of a columnar shaft portion 1. The shaft portion 1 has a hole 3 in the direction perpendicular to the axial center. The hole 3 has an inner peripheral face to be tapped by the screw D when threaded thereto. A shallow groove 5 is provided in the surface of the plate member B. The groove 5 has a receiving tool insertion hole 6 extending in the direction of the thickness of the plate member B. A communication hole 7 is provided in communication with the receiving tool insertion hole 6 through a side end face 4 of the plate member B, and a screw insertion hole 8 is formed in communication with the communication hole 7 passing through the outer face of the other plate member C. The position of the hole 3 is set so that, when the shaft portion 1 of the screw receiving tool A is inserted into the receiving tool insertion hole 6 to fit the different-diameter head portion 2 into the groove 5, the axial center of the hole 3 corresponds to the axial center of the screw receiving hole 7. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a plate material coupling device for joining two plate materials mainly made of wood at a right angle.

  Conventionally, as a means for connecting two wooden boards at a right angle in furniture or the like, as shown in Patent Document 1, for example, a screw receiving metal fitting in which a screw is inserted from one board and the tip is embedded in the other board is used. There is known a method of connecting by screwing into a screw hole.

In the above conventional means, the screw receiving bracket (12) is embedded in the hole (15) drilled from the surface of one plate member (4), and the screw hole of the screw receiving bracket (12) from the other plate member (1) to be coupled. Two plate members (1), (4) are inserted by inserting a long screw (11) into the through hole (13) that penetrates toward the end and screwing the tip into the screw hole of the screw receiving bracket 12 Are connected at right angles. The hole (15) is usually formed as a round hole because it is difficult to form a square hole, and a screw receiving bracket embedded in the hole (15) is also formed in a cylindrical shape.
Japanese Utility Model Publication No. 60-11985

According to the above-described conventional means, the screw receiving bracket 12 embedded in the hole 11 of the plate member 10 is easily rotated and displaced, so that the screw hole 14 of the screw receiving bracket 12 is correctly aligned with the through hole 16. It was difficult, and it took a lot of work to screw the screw.
SUMMARY OF THE INVENTION Accordingly, it is a primary object of the present invention to provide a plate material coupling device that solves the conventional problems and can be easily screwed and coupled to a screw insertion hole of a screw bracket with a simple configuration. .

  In order to achieve the above object, the present invention takes the following technical means. That is, the plate material coupling device according to the present invention comprises a screw holder A made of synthetic resin, two plate members B and C to be coupled at right angles, and a long screw D. The tool A includes a columnar shaft portion 1 and a large-diameter different-diameter head portion 2 formed integrally with the upper end of the shaft portion 1, and penetrates the shaft portion 1 in a direction perpendicular to the axis. And a hole 3 into which the screw D is screwed. The hole 3 has an inner diameter smaller than the outer diameter of the screw so that the inner peripheral surface of the hole is tapped by the screw D when the screw D is screwed. And a shallow groove 5 extending in a parallel direction or an orthogonal direction along the side end surface 4 of the plate member B is provided on the surface of any one of the plate members B, and a desired portion of the groove 5 is provided. A receiving member insertion hole 6 extending in the thickness direction of the plate member B is provided, and the receiving member 4 extends from the side end face 4 of the plate member B. Nyuana 6 and communicating hole 7 is provided which communicates at right angles to, the other plate member C screw insertion holes 8 communicating from the outer surface of the plate member C to the communication hole 7 is through. Further, the width of the groove 5 is formed larger than the diameter of the small diameter portion of the different diameter head 2 of the screw receiver A and smaller than the diameter of the large diameter portion, and the shaft portion 1 of the screw receiver A is inserted into the receiver. The position of the hole 3 is set in advance so that the axial center of the hole 3 and the axial center of the screw receiving hole 7 coincide with each other when the different diameter head 2 is inserted into the groove 5 after being inserted into the hole 6. It was set as the composition.

  The different-diameter head 2 is preferably formed in a substantially rectangular shape in plan view. Further, it is preferable that the thickness of the different-diameter head 2 is approximately the same as the depth of the groove 5.

  As described above, when the shaft portion 1 of the screw receiver A is inserted into the receiver insertion hole 6 and the different-diameter head 2 is fitted in the groove 5 as described above, the shaft core of the hole 3 and the screw receiver hole 7 are inserted. Since the position of the hole 3 is set in advance so as to coincide with the shaft core of the screw member A, the tip of the screw D inserted from the screw insertion hole 8 of the plate member C into the screw receiving hole 7 is connected to the screw holder A. The two plate members A and B can be easily connected to each other, and the rotation of the screw receiving member A is prevented by the fitting of the different-diameter head 2 and the groove 5. Therefore, there is an effect that it is possible to reliably prevent the screw receiving hole 7 from being out of position.

  1 to 4 show an embodiment of a plate material coupling device according to the present invention, in which a screw holder A, two plate members B and C to be coupled at right angles, and a long screw D. It consists of.

  The screw holder A is integrally formed of a synthetic resin material, and includes a cylindrical shaft portion 1 and a large-diameter different-diameter head portion 2 integrally formed on the upper end of the shaft portion 1. A hole 3 that is penetrated in a direction orthogonal to the axis and screwed with the screw D is provided. In this embodiment, the different diameter head 2 is formed in a substantially rectangular shape in plan view.

  The hole 3 of the screw holder A has an inner diameter smaller than the outer diameter of the screw so that the inner peripheral surface of the hole is tapped (threaded) by the screw D when the screw D is screwed. Therefore, the synthetic resin material of the screw holder A is preferably made of a material that can be threaded by the screw D, and the screw D is preferably a tapered one with a sharp crest at the top of the thread like a wood screw. ,

  Of the plate members A and B, a shallow groove 5 extending in a parallel direction along the side end surface 4 of the plate member B is provided on the surface of the horizontal plate member B, and the plate member B is formed at a desired position of the groove 5. A receptacle insertion hole 6 extending in the thickness direction is provided, and a communication hole 7 is provided which communicates from the side end face 4 of the plate member B to the receptacle insertion hole 6 at a right angle. The other vertical plate member C is threaded with a screw insertion hole 8 communicating with the communication hole 7 from the outer surface of the plate member C.

  Further, the groove 5 is formed so that its width is larger than the diameter of the small-diameter portion of the different-diameter head 2 of the screw holder A and smaller than the diameter of the large-diameter portion, and its depth is equal to the thickness of the different-diameter head 2. It is formed approximately equally. That is, the different-diameter head 2 is formed so as not to rotate within the groove 5. When the shaft portion 1 of the screw receiver A is inserted into the receiver insertion hole 6 and the different-diameter head 2 is fitted into the groove 5, the shaft core of the hole 3 and the shaft core of the screw receiver hole 7 are aligned. The positions of the holes 3 are set in advance so as to match.

  As shown in FIGS. 1 and 4, the plate material coupling device configured as described above is inserted into the receiving member insertion hole 6 from the surface of the horizontal plate member B and inserted into the receiving member insertion hole 6. Part 2 fits into groove 5. In this state, since the position of the hole 3 is set in advance so that the axis of the hole 3 and the axis of the screw receiving hole 7 coincide, the long screw D is inserted into the screw insertion hole of the vertical plate member C. By inserting the screw D through the screw receiving hole 7, the tip of the screw D can be easily screwed into the hole 3 of the screw receiving tool A, and the two plate members A and B can be easily connected. Further, since the rotation of the screw receiving member A is completely prevented by the fitting of the different-diameter head 2 and the groove 5, the position of the screw receiving hole 7 does not go wrong. In addition, since the groove 5 can be easily processed with a cutting machine such as a slitter, the cost does not increase.

  In the above embodiment, the groove 5 is provided in a direction parallel to the side end face 4 of the plate member B. However, as shown in FIG. 5, the groove 5 is orthogonal to the side end face 4 of the plate member B. May be provided. In this case as well, as in the previous embodiment, when the shaft portion 1 of the screw receiver A is inserted into the receiver insertion hole 6 and the different-diameter head 2 is fitted in the groove 5, Of course, the position of the hole 3 is set in advance so that the axis of the screw receiving hole 7 coincides.

  Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments. For example, the different-diameter head 2 may have any shape as long as it fits in a state where rotation in the groove 5 is prevented. Furthermore, the thickness of the different-diameter head 2 has an advantage that it is possible to prevent the upper end of the different-diameter head from protruding from the surface of the plate member B by making the dimension substantially the same as the depth of the groove 5. If possible, it may be produced with a protruding thickness. In addition, the present invention can be implemented with appropriate modifications within the scope of the present invention, achieving the object of the present invention, and achieving the above effects.

  The board | plate material connection apparatus which concerns on this invention can be utilized for the connection of the wooden board member in furniture or joinery.

The disassembled perspective view which shows one Example of the board | plate material coupling device which concerns on this invention. The perspective view of the screw holder in the said board | plate material coupling device. Sectional drawing of the said screw holder. Sectional drawing which shows the state which connected both plate members with the said board | plate material connection apparatus. The perspective view which shows the other Example of the board | plate material coupling device which concerns on this invention.

Explanation of symbols

A Screw receiver B Plate member C Plate member D Screw 1 Shaft 2 Different diameter head 3 Hole 4 Side end surface 5 of plate member B Groove 6 Receiver insert hole 7 Communication hole 8 Screw insertion hole

Claims (2)

It consists of a screw holder A made of synthetic resin, two plate members B and C to be coupled at right angles, and a long screw D.
The screw holder A includes a columnar shaft portion 1 and a large-diameter different-diameter head portion 2 formed integrally with the upper end of the shaft portion 1, and the shaft portion 1 is orthogonal to the axis. And a hole 3 into which the screw D is screwed, and the inner diameter of the hole 3 is smaller than the outer diameter of the screw so that the inner peripheral surface of the hole is tapped by the screw D when the screw D is screwed. Formed,
A shallow groove 5 extending in a parallel direction or an orthogonal direction along the side end surface 4 of the plate member B is provided on the surface of any one of the plate members B, and the plate member B is formed at a desired position of the groove 5. A receiving member insertion hole 6 extending in the thickness direction of the plate member B is provided, and a communication hole 7 communicating with the receiving member insertion hole 6 at a right angle from the side end surface 4 of the plate member B is provided. A screw insertion hole 8 communicating with the communication hole 7 from the outer surface of C is penetrated,
Furthermore, the width of the groove 5 is larger than the diameter of the small diameter portion of the different diameter head 2 of the screw holder A and smaller than the diameter of the large diameter portion.
When the shaft portion 1 of the screw receiving device A is inserted into the receiving device insertion hole 6 and the different-diameter head 2 is fitted in the groove 5, the shaft core of the hole 3 and the shaft core of the screw receiving hole 7 coincide. A plate material coupling device in which the position of the hole 3 is set in advance.   The plate member coupling device according to claim 1, wherein the different-diameter heads 2 are formed in a substantially rectangular shape in plan view.

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