JPS6216490Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a two-part fastener made of plastic for fastening an insulator and a carpet laid thereon on, for example, a dash panel or floor panel of an automobile.

To fasten an insulator or carpet to an automobile's dash panel, etc., as described in Japanese Utility Model Application Publication No. 56-64839, the center piece of a metal plate bent into a roughly U shape is spot welded to the panel, and both sides of the metal plate are spot welded to the panel. The two upright pieces are inserted into an insulator and a hole drilled in the carpet, and then folded down on the panel, or one of the upright pieces of a metal plate that is bent into a roughly U shape is provided with a claw in a folded manner. The folded edge of the panel is clamped, and the other upright piece is similarly inserted into a hole drilled in the insulator or carpet, and then folded down onto the panel. In all of these cases, workers often injure their fingers because they fold down the upright piece onto the panel with their fingers, and since the upright piece is only folded down and fastened with their fingers, it is difficult to apply force to the insulator or carpet in the direction of peeling it off from the panel. The upright piece bends in the original upright direction and easily comes off. Furthermore, those that are fixed to the panel by spot welding require welding work, which is time-consuming and may cause rust, and those that are fixed by hanging over the edge of a folded panel may complicate the metal plate. Must be bent.

In view of the above, the present invention does not have such drawbacks and is extremely easy to fix to panels and install compressible materials such as insulators and carpets on panels, and also allows easy installation of insulators and carpets as necessary. It was developed for the purpose of providing an improved fastener that can be removed easily.
Hereinafter, the present invention will be explained with reference to an embodiment shown in the drawings.

The fastener of the present invention consists of a male piece 1 and a female piece 2,
The male piece 1 includes a flat body 3, a clip leg 4 provided downward from the body 3 for fixing to a base A such as a panel, an insulator, and a compressible compressible material B such as a carpet to be laid on top of the clip leg 4. hole b in
It integrally has an upwardly directed column 6 with an enlarged head 5 at the upper end for loose passage from below. The female piece 2 has a cylindrical part 7 for fitting into the column 6 from above and passing through the hole b of the compressible material, and a pair of upwardly facing cylindrical parts diametrically opposed to each other via a thin hinge 8 at the upper end of the cylindrical part 7. It has pressure blades 9,9. The male and female pieces are each molded from a suitable elastic plastic.

In this embodiment, the clip leg 4 includes a thin conical flange 10 formed on the lower surface of the body 3, a cylindrical portion 11 concentrically hanging from the flange, and a cylindrical portion 1.
Diametrically opposed notches 11', 1 on the circumferential side of 1
1', the upper end is a free end, and a pair of claw pieces 12, 12 protrude from the outer periphery of the cylindrical part,
When the cylindrical part 11 is pushed into the mounting hole a in the base A from above, the claw pieces 12, 12 are pushed inward by the edge of the hole and pass down through the mounting hole, and when they finish passing through, they are pushed by their own elasticity. The male piece is again protruded from the outer periphery of the cylindrical part 11 and engaged with the hole edge from below, and in this state, the base body is clamped between it and the conical flange 10 that is flattened by the upper surface of the base body A, and the male piece is fixed to the base body. do. However, the clip leg 4 is not limited to the one shown in the drawings, and may have various structures depending on the base body, such as an anchor shape, a dugout boat shape, etc.

Each of the thin hinges 8 of the female piece 2 connects the lower part of the outer surface of the pressure blade 9 to the inner circumference of the upper end of the cylinder part 7, so that the pressure blade projects upward from the inner circumference of the cylinder part 7, and each of the pressure blades The wing 9 has short downward projections 9' below the thin-walled hinge 8, and in this embodiment a chevron-shaped cam 13 is provided at the lower end of each projection.

To attach the compressible material, first fix the male piece 1 onto the base A as described above, then attach the compressible material B onto the base A.
and fit the hole b of the compressible material into the pillar 6 of the male piece.
Then, while fitting the cylindrical portion 7 of the female piece 2 into the pillar 6, push the female piece 2 into the hole b of the compressible material, and
The protrusions 9', 9' of each pressure blade are pushed up.
As a result, each pressure blade bends its hinge 8 and begins to fall outward in opposite directions (Fig. 2), and when it falls to a certain extent, the tops of the cams 13 of each protrusion collide with each other (Fig. 3). ), the cam surface 13a comes into contact with the cam surface 13a due to the toggle action due to the subsequent thrust, causing the pressure blade to lie down (the fourth
), the head 5 is thus in contact with the cam surface 13
It penetrates upward between a and 13a. Therefore, when the head breaks through, both pressurizing blades move further down, and when the head breaks through, they return a little, but since the protrusions each catch the head from below, both pressurizing blades cross the horizontal line and remain in a prone position. The compressible material is compressed and pressed onto the top surface of the base (FIG. 5). In this way, the compressible material with elastic restoring force is compressed and pressed down before being attached to the base.
The greater the elastic restoring force of a compressible material, the more strongly it can be installed.

If it becomes necessary to remove the attachment, use the compressibility of the compressible material to push both pressure wings into the compressible material, make it into a V-shape, and hold it (Fig. 6) between the two protrusions 9' and 9'. Make the distance between the two larger than the head, and pull the tube upward from the pillar while still pinching it (Figure 7). When you release your finger after pulling it out, both pressure blades try to return to their original upward position due to the elasticity of the hinge 8, but they can only return to the prone position where the cam surface 13a of the protrusion is in contact. Therefore, when installing the head next time, the head will be attached to the cam surface 13 that is in contact with the cam surface 13.
The compressible material can be compressed and installed by simply pushing upward through the space a, saving the effort required to push up both pressure wings, which were originally facing upwards, with the head and make them lie down. can.

In addition, in this embodiment, knobs 14, 14 for pressing with fingers when pushing in the female piece 2 are provided with pressure blades 9 at the upper end of the cylindrical portion.
It is arranged perpendicularly to the compressible material and serves to hold down the compressible material from above, but this is not always necessary. The pillar 6 is in the form of a plate, and the head 5 extends laterally from both sides of the upper end of the plate, but this pillar is shaped like a pin with a circular or square cross section, and is erected approximately in the center of the upper surface of the body, with the head 5 jutting out laterally from both sides of the upper end of the plate. If the pin is made to protrude sideways from the entire circumference of the pin, it can be fixed by fitting and pushing the female cylinder part 7 regardless of the orientation of the pillar.

As is clear from the above, the proposed fastener fixes the male piece to the base with the clip leg, fits the cylindrical part of the female piece from above onto the column of the male piece, and presses it in. The pressure blade is compressed by the head of the column. The material is compressed and held diagonally downward and mounted on the base. Therefore, the distance from the upper surface of the body 3 to the bottom of the column head is determined depending on the thickness and compressibility of the compressible material to be fastened on the base. If it is provided as shown in the figure, the support pieces 15, 15 will elastically lift the part of the compressible material that is held down by the pressure blades from below, so that the compressible materials with different thicknesses and degrees of compressibility can be compressed. However, it can be mounted on the base without any problems.

In addition, in the lower part of the column from the thin hinge, there is a fin-shaped overhang part 16, leaving a part where the protrusion of the pressure blade is pulled.
For example, when the pillar is in the shape of a pin, the cross-sectional shape of the portion having the protruding portion is made into a cross shape, and it is tightly fitted to the inner periphery of the cylindrical portion of the female member to prevent movement within the cylindrical portion.

Thus, according to the present invention, it is possible to overcome the drawbacks of the conventional method and easily install compressible materials such as insulators and carpets without damaging the fingertips or without welding processes. It is also possible to provide a fastener that can be used repeatedly.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention. Figure 1 is a perspective view of the male and female pieces in an exploded state, and Figures 2 to 5 show the sequence of pushing in the male piece and installing the compressible material on the base. Figures 6 and 7 are explanatory diagrams showing the order of attaching and removing the compressible material. In the figures, 1 is a male piece, 2 is a female piece, 3 is a body, 4 is a clip leg, and 5
is a head, 6 is a column, 7 is a cylinder, 8 is a hinge, 9 is a pressure wing, 9' is a protrusion, A is a base, and B is a compressible material.

Claims (1)

[Claim for Utility Model Registration] Consisting of a male piece and a female piece molded from plastic, the male piece has a flat body, clip legs provided downward from the body for fixing to a base such as a panel, and a body. The female piece has a head extending from the circumference at the upper end and a column that loosely passes through the hole in the compressible material installed on the base, and the female piece is inserted into the column of the male piece from above and inserted into the compressible material. It has a cylindrical part that passes through the hole, and a pair of upward pressure blades that are diametrically opposed to each other via a thin-walled hinge at the upper end of the cylindrical part. It has a short protrusion, and when the cylindrical part is placed over the column of the male member from above and pushed in, the head of the top end of the column pushes up the protrusion of each wing, causing the pressure wing to lie down and being placed on the base. A fastener characterized by suppressing a compressed material, penetrating between the protrusions, and being pulled from above by the protrusions to maintain a state of lying down on a pressure blade.