JP4156404B2 - Fastener - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fastener with good workability capable of easily attaching a member such as a curtain side airbag to a mounting plate such as an automobile body.
[0002]
[Prior art]
As a fastener for attaching a conventional member to a mounting plate, for example, the one shown in FIG. 6 is provided. After the engagement holes U and W of both the mounting plate N and the mounting plate J are overlapped, The nut K is inserted into the engagement holes U and W with the nut A in a state in which the nut A is accommodated, and the screw tip is guided to an inclined surface provided on the nut A as the screw is tightened. Rotate A by 90 °. As a result, the female screw hole of the nut A is aligned and screwed onto the extension line of the screw, and then the screw is twisted and tightened, and the nut A is pulled and pulled to the back surface of the mounting plate J. The mounting plate is attached to the mounting plate. This fastener has an advantage that it can be used in a place where a hand cannot be inserted because the nut A can be brought into the back side of the panel by inserting the leg K.
[Patent Document 1]
Japanese Utility Model Publication No. 3-29611, Japanese Utility Model Publication No. 57-58118
[Problems to be solved by the invention]
However, in the above-described fastener, there is no problem when the mounting plate is overlapped and fixed integrally on the mounted plate, but when these plates are attached to the side surface of the wall, the plate is one-handed. There was a problem in workability.
[0004]
The present invention solves the above problems. The purpose is to make it possible to lock the fastener, the mounting plate and the mounted plate, and to improve the mounting workability when these three members are fixed.
[0005]
[Means for solving problems]
In order to solve the above-described problems, the present invention has been made in consideration of the above-described problems, and a locking claw capable of locking to the mounting plate and the mounted plate is provided on the fastener. As a result, the fastener and the mounting plate can be locked and the nut, the fastener, the mounting plate, and the mounted plate can be locked, and the mounting workability when fixing these three components can be improved.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 5 show examples of fasteners to which the present invention is applied. Among them, FIG. 1 is a perspective view of an exploded state schematically showing the usage mode.
[0007]
(Overall Configuration) FIGS. 1 and 2 show a fastener 3 used when attaching the attachment plate 1 to the attachment plate 12. Here, the mounting plate 1 assumes a mounting base such as an airbag. On the other hand, the fastener 3 includes a cylindrical member 7 and a nut 8, and a screw 9 is used for fixing in the attaching operation. The cylindrical member 7 and the sandwiching plate 10 are both molded from a plastic material.
[0008]
(Cylinder member) The cylinder member 7 is provided with claws 2 a and 2 a for holding the reinforcing metal plate 4 on the base 2. After the locking pieces 4a and 4a of the metal plate 4 spread the claws 2a, the claws 2a and 2a press the locking pieces 4a and 4a, so that the metal plate 4 is mounted on the base 2 of the cylindrical member 7 Is made. The pair of leg pieces 11a to through-holes of the end portion of the nut 8 between each other and extend from the base 2 the lower surface downward leg 11 made connecting portion 11b to contact the lower end of the 11a and the both leg pieces are Is provided.
[0009]
The leg pieces 11a, 11a are provided with long grooves 6, 6 extending in the axial direction on the inner wall, and the shafts 8b, 8b of the nut 8 can be rotatably moved in the long grooves 6, 6. The nut 8 has a guide slope 8b, and is usually stored in the leg portion 11 with the guide slope 8b facing upward to match the width of the leg pieces 11a, 11a. Insertion holes 2b and 4b of the screw 9 are formed in the center of the base 2 and the metal plate 4, respectively.
[0010]
The procedure for attaching the attachment plate 1 to the vehicle body 12 as the attachment plate with the fastener 3 as described above will be described with reference to FIGS. While the nut 8 is held so as to be hidden by the pair of leg pieces 11a, the leg portion 11 is inserted into a through hole formed in the mounting plate 1, the mounting plate 1 is sandwiched between the base portion 2 and the clamping plate 10, and the leg is removed from the mounting plate 1. The holding plate 10 is locked by the locking claw 5 so that the portion 11 is not easily detached (state of FIG. 2). Next, from this state, the leg portion 11 of the fastener 3 is inserted into the mounting hole of the mounted plate 12 (the state shown in FIGS. 3 and 4). The nut 8 is positioned on the back side of the mounting plate 1, and then a screw 9 is inserted into the insertion holes 4 b and 2 b formed in the metal plate 4 and the base 2, and the nut 8 is rotated 90 degrees at the tip of the screw 9, 5 is applied to the screw hole 81 of the nut 8 and the screw 9 is further turned to clamp the panel between the base 2 and the nut 8 (state shown in FIG. 5).
[0011]
Here, since the stopper 85 provided on the nut 8 is in contact with the connecting portion 11b of the leg 11 in a state before the rotation, even if the screw 9 is in contact with the guide inclined surface 8b, the nut 8 is counterclockwise. Is prevented from rotating, and is always allowed to rotate in only one direction. Therefore, when the nut 8 stands up as shown in FIG. 4, the guide slope 8 b formed on the nut 8 always faces the tip of the screw 9.
[0012]
Next, the screw 9 is inserted into the insertion hole 2 b of the base 2, and the tip of the screw 9 is brought into contact with the guide slope 8 b of the nut 8. Then, the nut 8 rotates 90 ° in the clockwise direction in the drawing around the shaft portions 8a and 8a. When the screw 9 is turned from the above state, the nut 8 moves in a direction approaching the base 2 through the long grooves 6 and 6, and finally the mounted plate 12 is clamped by the base 2 and the nut 8 and attached to the vehicle body. The plate 1 is fixed (state shown in FIG. 5).
[0013]
【The invention's effect】
As described above, according to the present invention, unlike the conventional thick plate fixture, it is possible to lock both the mounting plate and the mounting plate with the fixing plate. There is no inconvenience of having to hold the mounted plate. In particular, even when the attachment site is a wall surface, a ceiling surface, or the like, since the attachment plate, the attachment plate, and the fastener are locked to each other, the workability of the fixing operation can be improved.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a fastener according to the present invention.
FIG. 2 is a state diagram in which a mounting plate is sandwiched and locked by a fastener and a clamping plate.
FIG. 3 is a state diagram in which a fastener and a mounting plate are locked to a mounted plate.
4 is a front view of FIG. 3. FIG.
FIG. 5 is a state diagram in which a fastener and a mounting plate are fixed to a mounted plate.
[Fig. 6] Fig. 6 is a view showing a state of attaching a conventional fastener.
DESCRIPTION OF SYMBOLS 1 Mounting plate 2 Base part 3 Fastener 4 Metal plate 5 Locking claw 6 Long groove 7 Cylindrical member 8 Nut 9 Screw 10 Clamping plate 11 Leg part 12 Attached plate

Claims (4)

A cylindrical member molded with a plastic material having a base portion projecting in a bowl shape and a leg portion provided on the lower surface of the base portion and having a through hole opened in a cylindrical radial direction;
A reinforcing metal plate formed with an insertion hole for a screw held on the base of the cylindrical member;
Rotating by a screw inserted into the cylindrical member from the base side through the insertion hole of the metal plate, and a normal position that is pivotally supported corresponding to the through hole and is substantially contained in the leg portion of the cylindrical member And a nut that can be switched from the through hole to a use position that protrudes outside the cylinder from the end,
The fastener is characterized in that a locking claw projects from the outer surface of the leg portion of the cylindrical member. The fastener according to claim 1, wherein a plurality of the locking claws are provided. 3. The fastener according to claim 1, wherein a plurality of the locking claws project from the leg outer surface in a bilaterally symmetric direction. The fastener according to any one of claims 1 to 3, wherein a plurality of the locking claws project in the axial direction on the outer surface of the leg portion.

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