WO2020194417A1

WO2020194417A1 - Coupling and tool for coupling

Info

Publication number: WO2020194417A1
Application number: PCT/JP2019/012310
Authority: WO
Inventors: 彪三木
Original assignee: 彪三木
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2020-10-01

Abstract

In this coupling (100), a main body part (80) is fixed in one plate member (10) and a receiving hole (15), (15') is formed in another plate member (10). Front-surface wall parts (72L), (72R) of the main body part (80) are fitted into the receiving hole (15), (15') in a closed state. The front-surface wall parts (72L), (72R) are then pushed outward by a cap body (50) or a cam-form member (90), whereby the main body part (80)-side plate member (10) and the receiving hole (15), (15')-side plate member (10) are firmly secured. The cap body (50) or the cam-form member (90) is withdrawn, whereby the front-surface wall parts (72L), (72R) return to a closed state, and the main body part (80)-side plate member (10) and the receiving hole (15), (15')-side plate member (10) can easily be taken out. A furnishing can thereby be easily assembled and disassembled.

Description

Couplings and tools for connecting tools

The present invention mainly relates to a connector used for assemble furniture and a tool for a connector for fixing the connector to a plate material.

Currently, the mainstream of connecting tools for wooden furniture and storage furniture used in Japan are those developed overseas, including processing machines and board materials that drill receiving holes that match the connecting tools. It has been imported and is becoming an international standard. Regarding such a connector, the inventor of the present application has devised the following [Patent Document 1].

Utility Model Registration No. 2513975

However, the device described in [Patent Document 1] has poor elasticity due to its hard solid structure, and it is difficult to disassemble furniture when the fixing force is emphasized. On the contrary, when the decomposability of furniture is emphasized, the furniture is fixed. There was a problem that the power was insufficient. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connecting tool that exhibits a sufficient fixing force at the time of fixing, while the fixing force is weakened at the time of disassembly and the furniture can be easily disassembled and recombined. Another object of the present invention is to provide a tool for a connector suitable for fixing the connector to a plate material.

The present invention
(1) A main body having a substantially trapezoidal wall portion in which the front side and the bottom side are widened in a plan view, and a substantially cylindrical fixing portion 60 having a fixing hole 62 in the back wall portion 76 constituting the wall portion. Part 80 and
It has a pressing member that expands the main body 80 in the side surface direction.
The front wall portion 72 constituting the wall portion is divided into two left and right by a slit 82 in the vertical direction, and a fixing member communication hole 84 is provided at a position corresponding to the fixing hole 62.
The above problem is solved by providing a connector 100 characterized in that the front wall portion 72 is expanded to the left and right by the pressing member and the main body portion 80 is expanded in the side surface direction.
(2) The pressing member is a cap body 50 including a cover portion 52 that hides the main body portion 80 and an insertion portion 54 that is fitted into the wall portion of the main body portion 80.
The dimension L1 between the inner walls of the side wall portions 74 constituting the wall portion is totally or partially smaller than the lateral dimension L2 of the insertion portion 54, and the insertion portion 54 fits into the wall portion of the main body portion 80. The above problem is solved by providing the connector 100 according to the above (1), wherein the main body 80 expands in the side surface direction.
(3) The main body side convex portion 89 is provided on the inner surface of the side wall portion 74, and the main body portion 80 expands in the side surface direction when the main body side convex portion 89 abuts and is pressed against the insertion portion 54. The above problem is solved by providing the connector 100 according to the above (2).
(4) The second pressing member is a cam-shaped member 90 having a long side and a short side.
An expansion groove 86 is provided on the flat side of the front wall portion 72 of the main body portion 80.
The expansion groove 86 is formed to be larger than the dimension W1 in the short side direction of the cam-shaped member 90 and smaller than the dimension W2 in the long side direction, and the short side of the cam-shaped member 90 is in the direction of the inner wall of the expansion groove 86. After being inserted into the expansion groove 86 in this state, the long side rotates to the state toward the inner wall of the expansion groove 86, so that the long side of the cam-shaped member 90 comes into contact with the inner wall of the expansion groove 86. The above problem is solved by providing the connector 100 according to any one of the above (1) to (3), which comprises pressing and expanding the main body 80 in the side surface direction.
(5) The connecting tool tool 20 for driving or pulling out the fixing pin 14a for fixing the main body 80 of the connecting tool 100 according to the above (1) into the plate material 10.
A shaft body 22 having a through hole 22a in the axial direction,
A pin holding portion 24 located on the tip side of the shaft body 22 and holding the fixing pin 14a and having a tip portion having a diameter smaller than that of the fixing member communication hole 84.
A support rod 26 that is slidably inserted into the through hole 22a to support the fixing pin 14a,
A pin fixing portion 25 located on the pin holding portion 24 and fixing the fixing pin 14a to the pin holding portion 24 when the fixing pin 14a is pulled out.
The above problem is solved by providing a connecting tool tool 20 which is slidably installed with respect to the shaft body 22 and has a driving portion 28 for driving the fixing pin 14a into the plate material 10. ..

In the connector according to the present invention, the main body is fixed to one plate material and a receiving hole is formed in the other plate material. Then, the front wall portion of the main body portion is fitted into the receiving hole in a closed state. Next, the front wall portion is expanded by the pressing member to firmly fix the plate material on the main body side and the plate material on the receiving hole side. Further, by pulling out the pressing member, the front wall portion returns to the closed state, and the plate material can be easily removed. As a result, furniture can be easily assembled and disassembled. In addition, the connector tool according to the present invention can easily fix and remove the main body using a fixing pin.

It is a figure which shows the main body part of the connector which concerns on this invention. It is a figure which shows the cap body of the connector which concerns on this invention. It is a figure which shows the cam-shaped member of the connector which concerns on this invention. It is a figure which shows the tool for the connecting tool which concerns on this invention. It is a figure explaining the use method of the connector which concerns on this invention. It is a figure which shows the receiving hole of a connector. It is a figure explaining the use method of the connector which concerns on this invention. It is a figure explaining the method of using the tool for a connecting tool which concerns on this invention. It is a figure explaining the method of using the tool for a connecting tool which concerns on this invention. It is a figure explaining the fixed state of the main body part using a screw. It is a figure explaining the fixing method of a main body part and a receiving hole. It is a figure explaining the use method of the connector which concerns on this invention. It is a figure explaining the use method of the connector which concerns on this invention. It is a figure explaining the use method of the connector which concerns on this invention. It is a figure which shows the receiving hole of a connector. It is a figure explaining the use method of the connector which concerns on this invention. It is a figure explaining the fixing method of a main body part and a receiving hole. It is a figure explaining the use method of the connector which concerns on this invention. It is a figure explaining the use method of the connector which concerns on this invention.

An embodiment of the connecting tool 100 and the connecting tool tool 20 according to the present invention will be described with reference to the drawings. Here, FIGS. 1 (a) to 1 (e) are a plan view, a front view, a bottom view, a rear view, and a side view of the main body 80 constituting the connector 100, and FIG. 1 (f) is a main body. It is a cross-sectional view of XX of 80.

The connector 100 according to the present invention is mainly composed of a main body 80 and a pressing member (a cap body 50 and a cam-shaped member 90 described later), and the main body 80 is a wall portion opened through in the plane / bottom direction. It has (front wall portion 72, side wall portion 74, back wall portion 76) and a fixing portion 60 provided on the back wall portion 76 constituting the wall portion. Then, the wall portion of the main body 80 is widened on the front side (lower side of the paper surface) in a plan view as shown in the plan view of FIG. 1 (a), and is viewed sideways as shown in the side view of FIG. 1 (e). The flat side of the bottom surface (lower left side of the paper surface) expands, and the back wall portion 76 has a substantially trapezoidal shape that is vertical. Further, the bottom surface of the main body 80 may have a collar 81 that functions as a stopper when the main body 80 is inserted into the receiving hole 15 described later. Further, the inner surface of the wall portion may be formed diagonally so as to be substantially parallel to the surface side of the wall portion, but it is preferably formed vertically as shown in FIG. 1 (f).

Further, the fixing portion 60 has a substantially cylindrical shape having a fixing hole 62 into which a fixing member 14 such as a screw or a fixing pin 14a is inserted, and as shown in FIG. 1 (f), the fixing portion 60 is in the rear direction from the back wall portion 76. It is formed vertically toward. Further, it is preferable that the fixing portion 60 is formed by being divided into, for example, in the vertical direction by the slit 64, and the front side is formed with a diameter slightly smaller than that of the fixing member 14. As a result, when the fixing member 14 is inserted into the fixing hole 62, the fixing portion 60 is expanded outward, and the main body portion 80 is fixed to the plate material 10.

Further, as shown in FIG. 1B, the front wall portion 72 forming the front surface of the wall portion of the main body portion 80 has a substantially trapezoidal shape with the bottom surface widened in the front view, and the fixing hole 62 of the back wall portion 76. A fixing member communication hole 84 concentric with the fixing hole 62 is provided at a position corresponding to the above. The diameter of the fixing member communication hole 84 is preferably set so that the head of the screw having the maximum diameter can pass through because both the screw and the fixing pin, which are the main fixing members 14, can be used. Further, above the fixing member communication hole 84 (plane side), there is an expansion groove 86 into which the cam-shaped member 90 described later is inserted. The width dimension W of the expansion groove 86 is formed to be larger than the dimension w1 in the short side direction of the cam portion 92 of the cam-shaped member 90 shown in FIG. 3C, which will be described later, and smaller than the dimension w2 in the long side direction. The expansion groove 86 also functions as a gap through which the tip of the pin fixing portion 25 of the connecting tool tool 20 described later and the threaded portion of the fixing screw 25b pass. The front wall portion 72 is formed at the substantially center of the front wall portion 72 by the fixing member communication hole 84, the expansion groove 86, and the slit 82 formed in the vertical direction (plane / bottom direction), and the left front wall portion 72L and the right. It is divided into two parts with the front wall portion 72R of.

Further, as described above, the side wall portion 74 exhibits a substantially trapezoidal shape in which the bottom surface side excluding the back surface is widened. It is preferable that the side wall portion 74 has a strip-shaped concave groove 88 parallel to the flat surface and the bottom surface on the front surface side. Further, the concave groove 88 may be formed on the front wall portion 72 side continuously from the side wall portion 74. Further, it is preferable to provide a main body side convex portion 89 projecting inward on the inner surface of the side wall portions 74.

Next, the configuration of the cap body 50 that is normally used among the pressing members constituting the present invention will be described. Here, FIGS. 2A to 2E are a plan view, a front view, a bottom view, a side view, and a rear view of the cap body 50. The cap body 50 constituting the present invention has a cover portion 52 that covers the main body portion 80 when it is inserted into the main body portion 80, and an insertion portion 54 that rises vertically from the cover portion 52 and fits into the wall portion of the main body portion 80. And have. Further, a fixing member communication groove 84a cut out from above (plane side) is provided at a position corresponding to the fixing member communication hole 84 on the front surface of the insertion portion 54. Similar to the expansion groove 86, the fixing member communication groove 84a also functions as a gap through which the tip of the pin fixing portion 25 of the connecting tool tool 20 and the screw portion of the fixing screw 25b pass. Further, the back side of the insertion portion 54 has a notch portion 58 that serves as a storage space for the head of the screw when the screw is used as the fixing member 14. Further, the dimension between the inner walls of the side wall portion 74 of the main body portion 80 is formed to be smaller than the lateral dimension of the insertion portion 54 as a whole or partially. For example, the insertion portion 54 is configured to have substantially the same dimensions as the inner surface of the wall portion of the main body portion 80, and the dimension L1 between the inner walls of the side wall portion 74 is set to the side of the insertion portion 54 by the main body side convex portion 89 shown in FIG. It is partially made smaller than the dimension in the direction (in this case, the dimension L2 in FIG. 2A that abuts on the convex portion 89 on the main body side). As a result, when the insertion portion 54 is fitted into the wall portion of the main body portion 80, the side wall of the insertion portion 54 abuts on the main body side convex portion 89 and presses the insertion portion 54. As a result, the left and right

front wall portions

72L and 72R expand in the left-right direction, and the main body portion 80 and the receiving hole 15 described later are fixed. Regarding this lateral dimension, the insertion portion 54 itself may be formed wider than the dimension between the inner walls of the side wall portion 74, or a convex portion may be provided on the front side surface of the insertion portion 54 by the convex portion. The horizontal dimension L2 of the insertion portion 54 may be partially larger than the dimension L1 between the inner walls of the main body portion 80. Further, either one of the convex portion on the insertion portion 54 side and the convex portion 89 on the main body side may be formed, or both may be formed at positions where they do not overlap.

Next, the configuration of the cam-shaped member 90, which is the second pressing member, will be described. Here, FIGS. 3A to 3D are a plan view, a front view, a bottom view, and a side view of the cam-shaped member 90. The cam-shaped member 90, which is the second pressing member shown in FIG. 3, has a cam portion 92 having a long side and a short side, a screw head 96 for rotating the cam-shaped member 90, and a cam portion 92. It has a rotating shaft portion 94 that connects the screw head 96 and the screw head 96. Then, by rotating the screw head 96 using a screwdriver or the like, the cam-shaped member 90 is rotated, and the directions of the long side and the short side of the cam portion 92 are changed. As described above, the dimension w1 in the short side direction of the cam portion 92 is formed smaller than the width dimension W of the expansion groove 86, and the dimension w2 in the long side direction is formed larger than the width dimension W of the expansion groove 86. ..

Next, the connecting tool tool 20 according to the present invention will be described with reference to FIG. Here, FIG. 4A is a schematic cross-sectional view of the connector tool 20 according to the present invention, and FIG. 4B is a plan view. In the connecting tool tool 20 according to the present invention, the fixing pin 14a made of metal or resin is press-fitted to fix the main body 80 to the plate material 10, or the fixing pin 14a fixing the main body 80 is used. It is used when the main body 80 is pulled out and removed from the plate material 10.

The connecting tool tool 20 according to the present invention shown in FIGS. 4A and 4B holds a shaft body 22 having a through hole 22a in the axial direction and a fixing pin 14a located on the front side of the shaft body 22. The pin holding portion 24, the support rod 26 slidably inserted into the through hole 22a of the shaft body 22, the driving portion 28 slidably installed with respect to the shaft body 22, and the fixing pin 14a are pulled out. It sometimes has a pin fixing portion 25 for fixing the fixing pin 14a to the pin holding portion 24.

The shaft body 22 constituting the connector tool 20 has a through hole 22a inside as described above, and the front side is a pin holding portion 24. The through hole 22a is formed to be slightly larger than the diameter of the fixing pin 14a so that the fixing pin 14a can be held. Further, the through hole 22a has a pin fixing hole 22b at the position of the fixing screw 25b of the pin fixing portion 25. Further, the support rod 26 has a diameter equivalent to that of the fixing pin 14a, and is slidably inserted into the through hole 22a of the shaft body 22. Further, the driving portion 28 is made of a relatively hard and heavy metal or the like, and is slidably installed with respect to the shaft body 22 as described above. Further, the pin fixing portion 25 is formed to be thin with a size that allows the tip side to be inserted into the fixing member communication groove 84a, and includes a fixing screw 25b and a fixing screw hole 25a. Then, the fixing screw 25b is installed so as to communicate with the fixing screw hole 25a and the pin fixing hole 22b. Further, it is preferable to form a screw groove at the base end of the driving portion 28 (the end opposite to the pin holding portion 24) and to provide an adjusting portion 29 in the screw groove. By changing the amount of pushing into the driving part 28, the adjusting part 29 can define the position of the support rod 26 and change the amount of protrusion and the amount of pushing of the fixing pin 14a.

Next, a method of using the connector 100 according to the present invention will be described. Although an example of fixing the side plate 10b, the shelf plate 10c, and the top plate 10d to the back plate 10a constituting the furniture is used here, the method of using the connector 100 according to the present invention is limited to this. It can be used for any furniture. Further, although an example in which the side plate 10b is also fixed by using the connecting tool 100 is shown here, the part to be used of the connecting tool 100 is appropriately selected depending on the furniture to be manufactured and the designer.

First, as shown in FIG. 5, a main body fixing hole 12 into which the fixing portion 60 of the main body 80 is fitted is drilled at predetermined positions of the back plate 10a and the side plate 10b. Here, a main body fixing hole 12 for fixing the side plate 10b in the vertical direction of the back plate 10a is provided, and a main body fixing hole 12 for fixing the shelf plate 10c and the top plate 10d is provided in the horizontal direction. .. Further, a main body fixing hole 12 for fixing the shelf plate 10c and the top plate 10d is provided in the lateral direction of the side plate 10b. Further, a receiving hole 15 into which the main body 80 is fitted is formed in advance at predetermined positions of the side plate 10b, the shelf plate 10c, and the top plate 10d. When a general shelf plate 10c using the cap body 50 and the top plate 10d are used, a receiving hole 15 is formed on the lower surface of the shelf plate 10c and the top plate 10d.

Here, FIG. 6A shows a schematic cross-sectional view of the receiving hole 15, and FIG. 6B shows a bottom view. As shown in FIGS. 6A and 6B, the receiving hole 15 has a main body receiving hole 16a having the same dimensions as the external dimensions of the main body 80 and a cap receiving hole 16 having the same dimensions as the cover portion 52 of the cap body 50. It has 16b and. Further, the inner wall of the main body portion receiving hole 16a has a ridge 18 that fits into the concave groove 88 of the main body portion 80.

Next, the fixing portion 60 of the main body 80 is inserted into the main body fixing holes 12 of the back plate 10a and the side plates 10b. At this time, the flat side (narrow side of the trapezoidal shape) of the main body 80 is the receiving hole 15. In this example, as shown in FIG. 7, the main body 80 is inserted into the main body fixing hole 12 in the vertical direction of the back plate 10a so that the plane direction (narrow side of the trapezoidal shape) faces outward. Further, the main body 80 is inserted into the lateral main body fixing holes 12 of the back plate 10a and the side plates 10b so that the plane direction (narrow side of the trapezoidal shape) faces upward. Next, the fixing member 14 is press-fitted into the fixing hole 62 to expand the fixing portion 60 in the main body portion fixing hole 12, and the main body portion 80 is fixed to the back plate 10a and the side plate 10b, respectively.

Here, a method of fixing the main body 80 and a method of using the connecting tool 20 when the fixing member 14 is the fixing pin 14a will be described with reference to FIG. First, as shown in FIG. 8A, the fixing portion 60 of the main body 80 is inserted into the main body fixing hole 12 of the plate material 10. Further, the support rod 26 is inserted after adjusting the adjusting portion 29 of the connector tool 20 to an appropriate pushing amount, and the fixing pin 14a is further inserted into the through hole 22a of the pin holding portion 24. As a result, as shown in FIG. 8B, the fixing pin 14a protrudes from the tip of the pin holding portion 24 by an appropriate amount. At this time, the fixing screw 25b of the pin fixing portion 25 is in a state of being pulled in from the through hole 22a, and thus the fixing pin 14a is in a state of being held only by the pin holding portion 24. Next, as shown in FIG. 8C, the pin holding portion 24 is inserted into the wall portion of the main body portion 80 through the fixing member communication hole 84 while holding the fixing pin 14a, and the tip of the fixing pin 14a is directly inserted into the fixing portion. It is inserted into the fixing hole 62 of 60. Next, as shown in FIG. 8D, the driving portion 28 is slid back and forth, and the support rod 26 is hit via the adjusting portion 29. As a result, the support rod 26 hits the fixing pin 14a to drive the fixing pin 14a into the fixing hole 62 and press-fit it. Since the diameter of the tip side of the fixing hole 62 at this time is smaller than the diameter of the fixing member 14 (fixing pin 14a), the fixing portion 60 is press-fitted with the fixing pin 14a as shown in the schematic cross-sectional view of FIG. 10A. It is pushed outward with the slit 64 as a boundary and presses the inner wall of the main body fixing hole 12. As a result, the main body 80 is fixed to the plate material 10. Next, the connector tool 20 is pulled out from the main body 80. At this time, since the fixing pin 14a is press-fitted into the fixing hole 62, it easily comes off from the pin holding portion 24 and remains on the main body portion 80 side as shown in FIG. 8 (e). As a result, the fixing of the main body 80 by the fixing pin 14a is completed. As described above, since the connecting tool tool 20 according to the present invention can hold the fixing pin 14a, insert it into the fixing hole 62 from the outside of the main body 80, and drive it as it is, the fixing hole 62 of the fixing pin 14a It can be easily and vertically press-fitted into.

When removing the main body 80 from the plate material 10, first, as shown in FIG. 9A, the pin holding portion 24 of the connecting tool tool 20 is inserted into the wall of the main body 80 through the fixing member communication hole 84. , The fixing pin 14a is inserted into the through hole 22a of the pin holding portion 24. Then, the fixing screw 25b is tightened to fix the fixing pin 14a in the through hole 22a. Next, the connector tool 20 is pulled vertically. As a result, as shown in FIG. 9B, the fixing pin 14a is pulled out from the fixing hole 62 of the fixing portion 60. As a result, the outward expansion state of the fixed portion 60 is released and the fixed portion 60 returns to the original substantially vertical state. Then, the pressing state of the fixing portion 60 against the inner wall of the main body portion fixing hole 12 is released. Then, by pulling out the main body 80 in this state, the fixing portion 60 is pulled out from the main body fixing hole 12, and the main body 80 can be easily removed from the plate material 10. As described above, since the connector tool 20 according to the present invention can hold the fixing pin 14a and pull it out vertically, the fixing pin 14a can be easily pulled out from the main body fixing hole 12. .. As a result, the edge of the main body fixing hole 12 is not damaged by forcible pulling out.

Further, when the plate material 10 is a material having strength that can be fixed by wood screws such as solid material or plywood, or when there is a member 10'with strength that can be fixed by wood screws on the back surface or inside. As shown in FIG. 10B, a wood screw as the fixing member 14 may be screwed into the fixing hole 62 through the fixing member communication hole 84 and then screwed to the plate 10 (10'). In this case as well, the screw diameter of the fixing member 14 (screw) is made larger than the diameter on the front side of the fixing hole 62, so that the fixing portion 60 is outside the slit 64 by screwing the fixing member 14 (screw). The inner wall of the main body fixing hole 12 is pressed and fixed.

Next, as shown in FIGS. 11 (a) and 11 (b), the main body receiving hole 16a of the receiving hole 15 comes into contact with the cap receiving hole 16b from the flat side of the main body 80. Fit up to. At this time, the ridge 18 formed on the inner wall of the main body portion receiving hole 16a fits into the concave groove 88 of the main body portion 80 and functions as a stopper for the main body portion 80 to come off. By providing the flange portion 81 on the bottom surface portion of the main body portion 80 and using it as a stopper, it is possible to prevent the main body portion 80 from being excessively pushed into the main body portion receiving hole 16a and prevent the plate material 10 from being damaged. As a result, as shown in FIG. 12, the receiving hole 15 of the side plate 10b is fitted into the main body 80 of the back plate 10a in the vertical direction. Further, the receiving holes 15 of the shelf plate 10c and the top plate 10d are fitted into the main body portion 80 in the lateral direction of the back plate 10a and the side plate 10b.

Next, as shown in FIG. 11C, the insertion portion 54 of the cap body 50 is inserted from the bottom surface side of the main body portion 80. At this time, the main body side convex portion 89 formed on the inner surface of the side wall portion 74 abuts on the outer surface of the insertion portion 54 and is pressed. Further, in the configuration in which the insertion portion 54 side has a convex portion, the convex portion abuts on the inner surface of the side wall portion 74 and presses the convex portion. At this time, since the front wall portion 72 of the main body portion 80 is divided into the left and right

front wall portions

72L and 72R, as shown in FIG. 11D, the

front wall portions

72L and 72R of the main body portion 80 have slits 82. The main body 80 and the receiving hole 15 are firmly fixed by pressing the inner wall of the main body receiving hole 16a so as to expand in the left and right side surface directions. At this time, the cover portion 52 of the cap body 50 fits into the cap receiving hole 16b and covers the receiving hole 15 together with the main body portion 80.

As a result, as shown in FIG. 13, the back plate 10a, the side plate 10b, the shelf plate 10c, and the top plate 10d are fixed to each other via the connector 100. In addition, the cover portion 52 of the cap body 50 makes the connecting portion inconspicuous and can improve the aesthetic appearance. In the configuration in which the back plate 10a, the side plate 10b, the shelf plate 10c, and the top plate 10d are fixed to each other via the connector 100 as described above, the shelf plate 10c and the top plate 10d are the back plate 10a and the side plate 10b. Since it is fixed from the direction, it can be fixed extremely firmly. That is, in the configuration in which the connector 100 according to the present invention is provided on the back plate 10a and the side plate 10b, the shelf plate 10c and the top plate 10d are fixed in a state of being pulled from both side plates 10b and the back plate 10a. It can be fixed more firmly than conventional assembled furniture. Further, it is not necessary to configure the back plate 10a with a single plate material, and it is possible to use the divided back plate 10a especially for large-sized assembled furniture, and it is possible to improve the portability and reduce the material cost. .. Further, by fixing the back plate 10a to the wall surface of the building and then assembling the furniture, it is possible to construct the assembled furniture in the style of built-in furniture. In this case, by omitting the floor board, it is possible to clean the lower part of the furniture with an automatic vacuum cleaner. As described above, by using the connecting tool 100 according to the present invention for assembled furniture, the degree of freedom in its design can be greatly improved.

Also, when disassembling the furniture, pull out the cap body 50 from each main body 80. As a result, the pressing by the insertion portion 54 is released, and the

front wall portions

72L and 72R return to the original state without load. Next, the receiving hole 15 of each plate material 10 is pulled out from each main body 80. As a result, the back plate 10a, the side plate 10b, the shelf plate 10c, and the top plate 10d are each removed, and the furniture is disassembled.

Next, a method of using the connector 100 using the cam-shaped member 90 which is the second pressing member will be described. The method of using the connector 100 using the cam-shaped member 90 is used, for example, when the top plate 10d is fixed so as to be in contact with the ceiling surface R.

First, as shown in FIG. 14, the main body fixing hole 12 is formed in advance at a predetermined position near the upper ends of the back plate 10a and the side plate 10b. Further, a receiving hole 15'in which the main body 80 is fitted is formed at a predetermined position on the top plate 10d. Here, FIG. 15A is a plan view of the receiving hole 15', FIG. 15B is a schematic cross-sectional view of YY of the receiving hole 15', and FIG. 15C is a drawing of the receiving hole 15'. ZZ is a schematic cross-sectional view. As shown in FIGS. 15A to 15C, the receiving hole 15'has the main body receiving hole 16a and the cap receiving hole 16b, which are the same as or slightly larger than the external dimensions of the main body 80, similarly to the above-mentioned receiving hole 15. And have. Further, in addition to these configurations, the receiving hole 15'has a cam hole 19 into which the cam portion 92 of the cam-shaped member 90 can be inserted. The cam hole 19 is provided at a position corresponding to the center of the front wall portion 72 in the main body portion receiving hole 16a, that is, at the position of the expansion groove 86 when the main body portion 80 is fitted.

Next, the fixing portion 60 of the main body 80 is inserted into the main body fixing hole 12, and the fixing member 14 is press-fitted to fix the main body 80 to the back plate 10a and the side plate 10b. At this time, as shown in FIG. 16, the flat side (narrow side of the trapezoidal shape) of the main body 80 is set to the receiving hole 15'side. That is, when the top plate 10d is fixed so as to be in contact with the ceiling surface R indoors, a receiving hole 15'is formed on the upper surface of the top plate 10d, and the main body 80 has the flat side (narrow side of the trapezoid) downward. , Fix so that the bottom side (the wide side of the trapezoid) is on top.

Next, as shown in FIGS. 17 (a) and 17 (b), the main body portion receiving hole 16a of the receiving hole 15'is formed from the flat side (lower side) of the main body portion 80, and the flange portion 81 of the main body portion 80 is a cap receiving hole. Fit until it comes into contact with 16b. At this time, the ridge 18 formed on the inner wall of the main body portion receiving hole 16a fits into the concave groove 88 of the main body portion 80 to hold the plate material 10 (top plate 10d). As a result, as shown in FIG. 18, the top plate 10d is temporarily fixed to the back plate 10a and the side plate 10b via the main body 80. As a result, the main body 80 is hidden by the top plate 10d, and the cam hole 19 is located on the lower surface of the top plate 10d.

Next, the cam-shaped member 90 is inserted into the cam hole 19. At this time, the short side of the cam portion 92 is in the direction of the inner wall of the expansion groove 86, that is, the short side of the cam portion 92 is in the direction parallel to the expansion groove 86, and the long side is in the direction perpendicular to the expansion groove 86. As described above, the width dimension W of the expansion groove 86 is larger than the dimension w1 in the short side direction of the cam portion 92. Therefore, as shown in FIGS. 17C and 17D, the cam portion 92 is inside the expansion groove 86. It is inserted without any problem. Next, the screw head 96 is rotated (here, 90 °) using a screwdriver or the like. As a result, the cam portion 92 rotates together with the rotating shaft portion 94. At this time, since the dimension w2 in the long side direction of the cam portion 92 is larger than the width dimension W of the expansion groove 86, the long side of the cam portion 92 abuts on the inner wall of the expansion groove 86 at a certain point and presses it. Then, the long side of the cam portion 92 is in the direction of the inner wall of the expansion groove 86, that is, the long side of the cam portion 92 is in the direction parallel to the expansion groove 86, and the short side is in the direction perpendicular to the expansion groove 86. Stop the rotation. As a result, as shown in FIG. 17E, the

front wall portions

72L and 72R of the main body portion 80 expand in the left and right side surface directions with the slit 82 as a boundary, and press the inner wall of the main body portion receiving hole 16a to press the main body portion 80. And the receiving hole 15'are firmly fixed. As a result, as shown in FIG. 19, the back plate 10a, the side plate 10b, and the top plate 10d are fixed to each other via the connector 100. In the configuration using the cam-shaped member 90, the top plate 10d can be fixed so as to be in contact with the ceiling surface R, so that the furniture assembled by this can be installed as if it were built-in furniture.

When removing the top plate 10d, the screw head 96 is rotated by using a screwdriver or the like so that the short side of the cam portion 92 is in the state toward the inner wall of the expansion groove 86. As a result, the pressing of the expansion groove 86 by the cam portion 92 is released, and the

front wall portions

72L and 72R return to the original state without load. Next, after the cam-shaped member 90 is pulled out from the cam hole 19, the top plate 10d is pulled down and the receiving hole 15'is pulled out from the main body 80. As a result, the top plate 10d can be removed from the back plate 10a and the side plate 10b, and the furniture can be disassembled.

As described above, in the connector 100 according to the present invention, the main body 80 is fixed to one plate material 10, and the receiving holes 15 and (15') are formed in the other plate material 10. Then, the

front wall portions

72L and 72R of the main body portion 80 are fitted into the receiving holes 15 and (15') in a closed state. Next, the

front wall portions

72L and 72R are expanded by the cap body 50 or the cam-shaped member 90 to firmly fix the plate material 10 on the main body 80 side and the plate material 10 on the receiving hole 15 and (15') side. .. Further, by pulling out the cap body 50 or the cam-shaped member 90, the

front wall portions

72L and 72R are returned to the closed state, and the plate material 10 on the main body 80 side, the receiving hole 15, and the plate material 10 on the (15') side Can be easily removed. As a result, furniture can be easily assembled and disassembled. Further, especially in the configuration using the cam-shaped member 90, since the plate material 10 can be fixed in a state close to the ceiling surface R, floor surface, wall surface, etc. of the building, the assembled furniture can be installed as if it were built-in furniture. it can. Further, the connector tool 20 according to the present invention can easily fix and remove the main body 80 using the fixing pin 14a.

The configuration of the main body 80, the cap body 50, and the cam-shaped member 90 of the connector 100 shown in this example is an example, and the shape, dimensions, design, etc. of each part are changed without departing from the gist of the present invention. It is possible to carry out.

10 Plate material 14a Fixing pin 20 Connecting tool Tool 22 Shaft body 22a Through hole 24 Pin holding part 25 Pin fixing part 26 Support rod 28 Driving part 50 Cap body 52 Cover part 54 Insertion part 60 Fixing part 62 Fixing hole 72 Front wall part 74 Side wall part 76 Back wall part 80 Main body part 82 Slit 84 Fixing member communication hole 86 Expansion groove 89 Main body side convex part 90 Cam-shaped member 100 Connector

Claims

A main body portion having a substantially trapezoidal wall portion in which the front side and the bottom surface side are widened in a plan view and having a substantially cylindrical fixing portion having a fixing hole in the back wall portion constituting the wall portion.
It has a pressing member that expands the main body in the lateral direction, and has.
The front wall portion constituting the wall portion is divided into two left and right by a slit in the vertical direction, and a fixing member communication hole is provided at a position corresponding to the fixing hole.
A connecting tool characterized in that the front wall portion is expanded to the left and right by the pressing member, and the main body portion is expanded in the side surface direction.
The pressing member is a cap body including a cover portion that hides the main body portion and an insertion portion that is fitted into the wall portion of the main body portion.
The dimension between the inner walls of the side wall portions constituting the wall portion is smaller overall or partially than the lateral dimension of the insertion portion, and the insertion portion is fitted into the wall portion of the main body portion to cause the main body. The connector according to claim 1, wherein the portion expands in the lateral direction.
The connection according to claim 2, wherein the main body side convex portion is provided on the inner surface of the side wall portion, and the main body portion expands in the side surface direction when the main body side convex portion abuts on and is pressed against the insertion portion. Ingredients.
The second pressing member is a cam-shaped member having a long side and a short side.
An expansion groove is provided on the flat side of the front wall of the main body.
The expansion groove is formed to be larger than the dimension in the short side direction of the cam-shaped member and smaller than the dimension in the long side direction, and the short side of the cam-shaped member is formed in the expansion groove in a state of the inner wall direction of the expansion groove. After the insertion, the long side rotates to the state toward the inner wall of the expansion groove, so that the long side of the cam-shaped member abuts and presses against the inner wall of the expansion groove, and the main body portion is pushed in the side surface direction. The connector according to any one of claims 1 to 3, wherein the connector is expanded.
A tool for a connector for driving or pulling out a fixing pin for fixing the main body of the connector according to claim 1.
A shaft body having a through hole in the axial direction and
A pin holding portion located on the tip side of the shaft body to hold the fixing pin and having a tip portion having a diameter smaller than that of the fixing member communication hole.
A support rod that is slidably inserted into the through hole to support the fixing pin,
A pin fixing portion located in the pin holding portion and fixing the fixing pin to the pin holding portion when the fixing pin is pulled out,
A tool for a connecting tool, which is slidably installed with respect to the shaft body and has a driving portion for driving the fixing pin into a plate material.