JPH0132097B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a coupling tool used for stacking and coupling a plurality of plate-like members.

Structure and Problems of Conventional Examples In general, in packaging boxes such as cardboard boxes, flaps are overlapped and joined together, or upper and lower boxes are overlapped and joined together with their side plates for sealing or packaging. The simplest method is to use staples or rivets, but these methods are troublesome to unpack, and the unpacked packaging may be damaged by the staples or rivets. remains, making it inconvenient to reuse. For this reason, coupling means as shown in FIGS. 6 and 7 have been considered. That is,
For example, holes 4 and 5 are formed in corresponding parts of the side plate 2 of the upper box and the side plate 3 of the lower box in the packaging box 1, and cap-shaped stops 6 and 7 with brims are formed from the outside of both the side plates 2 and 3. The connecting pin 10 is inserted into the hole formed in the bottom plate parts 8, 9 of the fasteners 6, 7, and the other end is locked by turning the knob 11 attached to one end of the connecting pin 10. The piece 12 is hung on the inside of one of the bottom plate parts 9, the two fasteners 6 and 7 are joined together, and the side plates 2 and 3 are tightened and joined by the collars of the two fasteners 6 and 7. This coupling means allows the fasteners 6 and 7 to be easily removed, and the side plates 2 and 3 are not damaged, so they are advantageous in terms of reuse. For example, in the case of a box as shown in FIG. When the fasteners 6 and 7 are connected, the inner fastener 7 tends to fall off, so the fastener 7 must be temporarily fixed with tape or a temporary fastening ring 13, etc.
Its workability is poor. Moreover, at least the stopper 6,
7 and the connecting pin 3 are required, and the parts are easily lost, which is undesirable from the viewpoint of parts management.

OBJECTS OF THE INVENTION The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to provide a joining tool which can overlap and join a plurality of plate-like members by itself and which can perform the joining operation with a single touch.

Configuration of the Invention To achieve the above object, the present invention comprises an insert;
A fixed clamping piece is provided at one end of the insert body and protrudes to the outside of the insert body, and a substantially L-shaped (also V-shaped) rotatable piece is provided at the other end of the insert body via a hinge. ), the movable clamping piece is connected at its midsection to the hinge, one end of which protrudes outward from the insert, and when rotated, the other part becomes the fixed clamping piece. It is configured as a coupling tool with a clamping function, and when the insert of the coupling tool is pushed into the hole of the plate-like member to be stacked and coupled, the movable clamping piece automatically rotates and the movable clamping piece By sandwiching the plate-like member with the fixed clamping piece, the connection can be made with one touch and reliably.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

In the figure, 13 is a cylindrical insert 1 with a bottom.
4, and a fixed clamping piece 15 with a flange provided at one end of the insert 14, which is a so-called flange cap-shaped connector body, and is made of a synthetic resin material such as polypropylene. The insert 14
A pair of movable clamping pieces 17 are rotatably connected to the other end via a hinge 16. The movable clamping piece 17 is formed into a substantially L-shape, and the hinge 16 is located in the middle part of the movable clamping piece 17, and one piece 17a protrudes toward the outside of the insert body 14.
The length from the hinge 16 to the fixed clamping piece 15 is slightly longer than the length from the hinge 16 to the fixed clamping piece 15.
And inside the fixed clamping piece 15 is the piece 17a.
A concave locking portion 18 into which the tips of the
has been established.

Next, the use of the coupling device will be explained based on FIG. 2. The two plate-shaped members 19 and 20 have holes 2 for inserting couplings at corresponding positions, respectively.
1 and 22 are formed. First, as shown in Figure A, the coupling main body 13 is inserted from one side into the holes 21 and 22 from the distal end side of the insert body 14. Here, one piece 17a of the movable clamping piece 17 protruding outward from the insert body 14 is inserted at the edge of the hole 21 and rotated as shown in FIG. When the insert 14 of the coupling main body 13 is completely pushed in, one piece 17a of the movable clamping piece 17 is along the outside of the inserting body 14, and the other piece 17b of the movable clamping piece 17 is fixed, as shown in FIG. The state is parallel to the clamping piece 15, and the two plate-like members 19 and 20 are connected to the other piece 17b of the movable clamping piece 17 and the fixed clamping piece 15.
Hold it in place. Note that since the insert body 14 is inserted into the holes 21 and 22 of the two plate-like members 19 and 20, the two plate-like members 19 and 20 will not be displaced from each other. When the two plate-like members 19 and 20 are sandwiched by the movable clamping piece 17, the tip of one piece 17a of the movable clamping piece 17 is connected to the fixed clamping piece 15.
It engages with the locking part 18 on the inside of the body, and the clamping state is maintained stably.

In this way, when two or more plate-like members 19, 20 according to connection example 13 are overlapped and connected, the movable clamping piece 17 is automatically rotated by pushing the connector main body 13 into the holes 21, 22. This allows the clamping operation to be performed with just one touch.
For example, it is possible to perform joining work using an automatic machine. Further, the connector main body 13 is a one-piece piece, which is preferable from the viewpoint of parts management. Furthermore, even if the connector main body 13 is removed, the outer surfaces of the plate members 19 and 20 are not damaged, so there is no problem in reusing them.

3 to 5 each show a coupling device according to another embodiment of the present invention. The one in Figure 3 is the movable clamping piece 17.
In addition, the insert 14 has a hole 23 through which a string or the like can be passed. In the one shown in FIG. 4, the insert 14 has a triangular prism shape, and therefore three movable clamping pieces 17 are provided. In the one shown in FIG. 5, the hinge 16 that connects the movable clamping pieces 17 is located in the midsection of a piece 17a that projects outwardly from the movable clamping pieces 17. All of the embodiments shown in FIGS. 3 to 5 have the same functions as those shown in FIG. 1.

Effects of the Invention As is clear from the description of the embodiments above, the coupling tool of the present invention can easily connect a plurality of plate-shaped members by overlapping them, and also does not damage the plate-shaped members.
Its value is great.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a coupling device according to an embodiment of the present invention;
2a, 2b and 2c are sectional views showing the coupling operation of the coupling device, and FIGS. 3 to 5.
The figures are perspective views of coupling devices of other embodiments.
The figure is a perspective view of the packaging box, and FIG. 7 is a cross-sectional view of a joint using a conventional joint. 13... Connector main body, 14... Insert body, 15...
...fixed clamping piece, 16...hinge, 17...movable clamping piece.

Claims (1)

[Claims] 1 an insert; provided at one end of the insert;
The movable clamping piece is composed of a fixed clamping piece projecting to the outside of the insert body, and a rotatable, approximately L-shaped movable clamping piece whose midsection is connected to the other end of the insert body via a hinge. A coupling device in which one of the pieces protrudes outward from the insert body, and the other piece is configured to have a clamping relationship with the fixed clamping piece when the movable clamping piece rotates.