JP2001289219A - Connecting pin, connecting clip and connecting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide connecting structure permitting work of connecting members to each other without using an adhesive and facilitating the connecting work at an installation site. SOLUTION: In this connecting structure for inserting and fixing the connecting pin 10 into the connecting clip 20, the connecting pin 10 is provided with a cutout part 13 formed at each opposed side edge 12 on the tip side of a cylindrical body with a clearance 15 existing, a constricted part 16 formed around the cylindrical body formed with the cutout part, and a tapered part 18 formed at the tip part of the cylindrical body formed with the cutout part; while the connecting pin 20 is provided with a drawing part 25 smaller in diameter at the center than on the outside, at the cylindrical body with the clearance 23 existing. The constricted part 16 of the connecting pin 10 is thereby fitted to the drawing part 25 of the connecting clip 20 to positively connect both of them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting pin and a connecting clip used for fixing members.
In particular, the present invention relates to a structure of a connecting pin and a connecting clip which can easily perform a work of connecting members, and a structure of connecting members using these.

[0002]

2. Description of the Related Art Conventionally, when joining wood members, for example, a cylindrical wooden dowel is attached to a cylindrical groove portion formed on one member with an adhesive, and the other member is formed on the other member. By inserting the tips of the wooden dowels into the cylindrical grooves and assembling and fixing them through an adhesive, the members have been connected and joined.

[0003]

However, according to the above-described connection structure, since the fixing is performed using an adhesive, the operation itself becomes complicated, and a predetermined time is required to obtain a required fixing strength. Curing is performed. That is,
After assembling, it is necessary to apply pressure with a press machine and leave it for a predetermined period of time, and there has been a problem that the joining work cannot be performed on site. Therefore, for example, wooden frames and the like used around the system kitchen are assembled and cured at the factory and transported to the installation site for installation.In this case, space is required to transport the finished product after assembly. Accounted for a large proportion of the transportation costs, which reduced transportation efficiency and raised transportation costs.

[0004] The present invention has been made in view of the above-mentioned circumstances, and enables a joining operation between members without using an adhesive, and a joining structure in which the joining operation can be easily performed at an installation site. Has an object to provide a structure of a connecting pin and a connecting clip used at that time.

[0005]

According to a first aspect of the present invention, there is provided a connecting pin formed by bending a plate, wherein a cylindrical body having a gap between sides of the plate is provided. A notch formed on each of the opposing sides on the one end side, a constricted portion formed around the cylindrical body in which the notch is formed, and a tip of the cylindrical body in which the notch is formed And a taper formed in the portion.

According to a second aspect of the present invention, in the first aspect, the constricted portion comprises a neck portion concentric with the cylindrical body and a tapered portion continuous with the neck portion.

According to a third aspect of the present invention, in the first aspect, a notch is formed on the side, and a plate near the notch is bent to form a locking piece. .

In the connecting clip according to the fourth aspect, the plate piece is bent to form a cylindrical body having a gap between the side edges of the plate piece, and the cylindrical body has a narrowed portion whose center has a smaller diameter than the outer side. Characterized by having a shape having

According to a fifth aspect of the present invention, there is provided a connecting structure in which the opposite notch side of the connecting pin of the first aspect is inserted into a circular groove formed in the first board and the inner diameter of the cylindrical body is reduced so as to be fixed. 5. The connecting clip of claim 4 is inserted into a circular groove formed in the second board and fixed in a state in which the inner diameter of the cylindrical body is reduced, and the tip of the connecting pin is inserted into the connecting clip, and the narrowing portion of the connecting clip is inserted. And the constricted portion of the coupling pin is fitted and arranged.

According to the present invention, when the tip of the coupling pin is inserted into the coupling clip, the inner diameter of the coupling pin is reduced along the narrowed portion of the coupling clip so as to reduce the width of the notch at the distal end of the coupling pin. And the throttle portion is located at the constricted portion of the coupling pin. In this state, the constricted portion of the coupling pin fits into the narrowed portion of the coupling clip, and the width of the cutout is restored to the original position, so that the coupling pin can be prevented from coming off the coupling clip.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is to obtain a connecting structure between members by using a connecting pin and a connecting clip having a novel structure. First, a coupling pin 10 as an example of an embodiment of the present invention will be described with reference to FIG. 1A is an explanatory front view of a connecting pin, FIG. 1B is an explanatory plan view of the connecting pin, and FIG. 1C is an expanded explanatory view when the connecting pin is expanded.

The coupling pin 10 is formed by press working in which a flat metal plate 11 as shown in a development view of FIG. 1C is bent so as to be wound. A notch 1 is formed at a lower side (tip side) on a side 12 of a flat plate piece 11.
3, and a cut portion 14 that is perpendicular to the side is formed at a position slightly above the center. For this plate piece 11,
The cylindrical body is formed such that the side edges 12 are wound close to each other, and a gap 15 exists between the side edges 12. The reason why the gap 15 is provided in the cylindrical body is that the cylindrical body can be inserted into a hole having a smaller diameter than the coupling pin 10 provided in the member, and the coupling pin 10 is prevented from falling out in the inserted state.

A constricted portion 16 having a small outer diameter around the cylindrical body is formed on the distal end side of the cylindrical body where the cutout 13 is formed. The constricted portion 16 has a neck portion 16 which is concentric with the cylindrical body and has an outer diameter smaller than the circumference of the cylindrical body.
a and a tapered portion 16b continuous therewith. Further, a tapered portion 1 having a tapered shape with a support diameter portion 17 having the same diameter as that of the cylindrical body is interposed between the constricted portion 16 of the cylindrical body in which the cutout portion 13 is formed and the distal end thereof.
8 are formed.

Above the portion where the cutout 14 is formed on the side 12, a locking piece 19 is formed which is bent so as to incline the triangular portion of the plate side near the cutout outward.

Next, a description will be given of a connecting clip 20 as an example of an embodiment of the present invention with reference to FIG. 2A is a front view of the connecting clip, FIG. 2B is a plan view of the connecting clip, FIG. 2C is a side view of the connecting clip, FIG. 2D is a cross-sectional view of the connecting clip, and FIG.
FIG. 4 is a development explanatory diagram when a connection clip is developed.

The connecting clip 20 is formed by bending a metal plate 21 as shown in the development explanatory view of FIG. 2E so that the side edges 22 of the plate 21 as shown in FIG. As shown in FIG. 2 (d), the cylindrical body having the gap 23 is formed by press working, and as shown in FIG.

The reason why the gap 23 is provided in the cylindrical body is to allow the cylindrical member to be inserted into a hole having a smaller diameter than the connecting clip 20 provided on the member, and to prevent the connecting clip 20 from being removed in the inserted state. . In addition, the four corners of the plate piece 21 are each cut off at a triangular portion, so that when the coupling clip 20 is inserted into the hole of the member or when the coupling pin 10 is inserted into the coupling clip 20, the shape is less likely to receive resistance. Has become.

Next, the connection structure using the connection pin 10 and the connection clip 20 will be described with reference to FIGS.
This will be described with reference to FIG. The opposite notch side of the coupling pin 10 is inserted into the circular groove 31 formed on the first decorative board 30 and having a smaller diameter than the coupling pin 10. At the time of insertion, the inner diameter of the cylindrical body is reduced, and the sides 12 of the plate piece 11 are brought into contact with each other, and the force for expanding the diameter is stored and fixed in the circular groove 31 in a contracted state (FIG. 3). . At this time, the locking piece 19 of the coupling pin 10 bites into the inner wall of the circular groove 31 to secure the fixing in the circular groove 31.

The connecting clip 20 is inserted into the circular groove 41 having a smaller diameter than the connecting clip 20 formed on the second decorative board 40.
And fix it with the inner diameter of the cylinder reduced. Even in this state, a gap is formed between the side sides 22. The inner diameter of the cylindrical body of the connecting clip 20 fixed to the circular groove 41 is the first decorative board 30.
The coupling pin 10 is formed to have an inner diameter slightly larger than the outer diameter of the cylindrical body of the coupling pin 10 fixed to the circular groove 31 so that the coupling pin 10 fixed to the circular groove 31 can be inserted.

The tapered portion 18 at the tip of the connecting pin 10 is inserted into the connecting clip 20 (FIG. 4), and after the supporting diameter portion 17 of the connecting pin 10 passes through the narrowing portion 25 of the connecting clip 20 while reducing the diameter, the connecting is performed. Inserted into the lower position of the clip 20,
The constricted portion 16 of the connecting pin 10 is fitted and arranged in the narrowed portion 25 of the connecting clip 20 (FIG. 5). In this state, as shown in FIG. 6, the force acting in the direction of increasing the diameter of the coupling pin 10 is applied to the constricted portion 16 of the coupling pin 10 by the surface of the coupling clip 20 located below the narrowed portion 25.
Since the surface of the tapered portion 16b is converted into a force to be pressed downward and acts, the fitted state can be reliably maintained.

According to the above-described connecting structure, by using the connecting pin 10 and the connecting clip 20, the members of the decorative board 30 and the decorative board 40 can be securely connected and fixed without using an adhesive. Can be. Also,
Since the connection pin 10 and the connection pin 20 are fixed by fitting, the required strength can be obtained immediately after the insertion and fitting, and there is no need to perform curing after the connection and fixing as in the conventional example. Work is possible.

[0022]

According to the present invention, members can be immediately connected and fixed without using an adhesive by using a connecting pin and a connecting clip having a novel structure.
The joining operation of the members can be facilitated.

Further, since no adhesive is used for joining the members, no curing time is required, the work can be performed at the site where the finished product is installed, and the members to be joined are transported in the state of parts. , A large number of parts can be moved at one time, and the transportation cost can be reduced.

[Brief description of the drawings]

1A and 1B show a connecting pin according to an embodiment of the present invention, wherein FIG. 1A is a front view, FIG. 1B is a plan view,
(C) is a development explanatory view.

FIGS. 2A and 2B show a connecting clip according to an embodiment of the present invention, wherein FIG. 2A is a front view, FIG.
(C) is a side view, (d) is a cross-sectional view, and (e) is a developed view.

FIG. 3 is an explanatory diagram for explaining a connecting procedure of a connecting structure using a connecting pin and a connecting clip of the present invention.

FIG. 4 is an explanatory view for explaining a connecting procedure of a connecting structure using a connecting pin and a connecting clip of the present invention.

FIG. 5 is an explanatory diagram for explaining a connecting procedure of a connecting structure using a connecting pin and a connecting clip of the present invention.

FIG. 6 is an explanatory diagram showing a coupling state between a coupling pin and a coupling clip.

[Explanation of symbols]

10 ... connecting pin, 12 ... side, 13 ... notch, 1
5: gap, 16: neck, 16a: neck, 16b
... taper part, 17 ... support diameter part, 18 ... taper, 1
9: locking portion, 20: connecting clip, 22: side, 2
3: gap, 25: throttle

Claims (5)

[Claims] 1. A cylindrical body which is formed by bending a plate piece and has a gap between sides of the plate piece; a notch formed on each of the opposing sides on one end side of the cylindrical body; It is characterized by comprising a constricted portion formed around a cylindrical body in which the cutout portion is formed, and a tapered portion formed in a tip portion of the cylindrical body in which the cutout portion is formed. Coupling pin. 2. The coupling pin according to claim 1, wherein the constricted portion includes a neck portion concentric with the cylindrical body and a tapered portion continuous with the neck portion. 3. The connecting pin according to claim 1, wherein a notch is formed in said side, and a locking side is formed by bending a plate side near the notch. 4. A bend of a plate piece to form a cylindrical body having a gap between the sides of the plate piece, and the cylindrical body is formed in a shape having a narrowed portion whose center has a smaller diameter than the outside. A coupling clip, characterized in that: 5. A second groove formed in the second board is formed by inserting the anti-notch side of the coupling pin of claim 1 into a circular groove formed in the first board and reducing the inner diameter of the cylindrical body. The clip of claim 4 is inserted into the formed circular groove and fixed in a state in which the inner diameter of the cylindrical body is reduced. The tip of the coupling pin is inserted into the coupling clip, and the constricted portion of the coupling pin is formed at the narrowed portion of the coupling clip. A coupling structure characterized by being fitted and arranged.