JPH0353048Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a fastener for a vehicle.

[Conventional technology]

For example, when fixing a car garnish,
Fasteners C1 and C2 as shown in FIGS. 6 and 7 have been used. All have in common that the garnish 21 is clamped and fixed by using a screw shaft (shaft body) 20 erected on the body 22 side. However, the one in Figure 6 is made of metal,
The other one is different in that it is made of synthetic resin.

The fastener C1 shown in FIG.
A plurality of locking pawls 24 are cut and raised so as to surround the screw shaft 20, and the screw shaft 20 is secured to the screw shaft 20 by these locking pawls 24.

On the other hand, the synthetic resin fastener C2 shown in FIG. 7 has a cylindrical portion 26 erected on the upper surface of a disc-shaped presser plate 25 so as to cover the entire screw shaft 20. A locking pawl 27 is provided on the upper surface of the presser plate 25 so as to face inward, and is thereby secured to the screw shaft 20.

[Problem that the invention attempts to solve]

Both of the above-mentioned fasteners have the following problems.

In the case of the metal fastener C1, although sufficient locking force can be obtained for the screw shaft 20, the sharp locking claws 24 and the screw shaft 20 remain exposed, making it easy for them to get caught on them, creating a danger to work. accompanied by.

In the case of the synthetic resin fastener C2, the above-mentioned operational risks are avoided, but the locking claw 27 has a lower locking force than the metal locking claw 24. In addition, there are many cases where paint P adheres to the screw shaft 20 due to other operations. In this case, the height of the thread is reduced and the bite becomes poor. In other words, the locking force is further reduced. In other words, both types of fasteners have advantages and disadvantages, and neither is satisfactory.

Therefore, the present invention aims to solve the above-mentioned problems by providing a new fastener.

In other words, the purpose of the present invention is to obtain sufficient locking force just by pushing the body against the screw shaft, to securely lock the screw even when paint is attached to the screw shaft, and to ensure that the screw remains secure after locking. To provide a fastener for a vehicle in which the shaft is not exposed and subsequent work can be performed safely.

[Means for solving problems]

In order to achieve the above object, this invention includes a metal locking body with a C-shaped cross section that engages with a screw shaft erected from the body, and a metal locking body that is elastically deformed in the radial direction and stored. The cap body with the locking body interposed therebetween is inserted into the screw shaft, and the locking body and the cap body are integrated and engaged, so that the attached member The cap body is a fastener that is clamped and fixed between the cap body and the body, and the cap body has a cylindrical part that can accommodate the screw shaft erected on the upper surface of a holding plate for pressing down the member to be attached. The locking body has a structure in which a window portion is provided in a part of the locking body, and the locking body has a claw piece facing inward that can be engaged with the screw shaft, and the locking body engages with the window portion of the cap body. It is characterized by having a structure having a locking pawl extending radially outward.

[Effect]

Therefore, according to the above configuration, the claw piece of the metal locking body engages with the screw shaft, and the locking body engages with the window of the resin cap body that covers the locking body. When the locking claws of the cap engage with each other, the holding plate of the cap body clamps and fixes the attached member to the body.

〔Example〕

Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings.

The fastener C in this example is a cap body 1 made of synthetic resin.
and a metal locking body 2. first,
The explanation will start from the cap body 1 made of synthetic resin.

The cap body 1 has a presser plate 3 formed in the shape of a disk. An insertion hole 4 is formed in the center, into which a screw shaft S vertically provided at a proper position on the body B can be inserted. Further, on the upper surface thereof, a cylindrical portion 5 formed in a hexagonal cylindrical shape as shown is coaxially arranged upright. The hexagonal cylindrical shape is designed to facilitate the use of tools such as spanners. Therefore, in case a screwdriver is used, a minus groove and a plus groove may be provided on the top surface of the screwdriver (not shown).

In the cylindrical portion 5, a window portion 6 is opened at the lower end of a pair of opposing walls, and a locking claw 7 on the locking body 2 side, which will be described later, is engaged with the window portion 6 to close the cap body 1.
This allows the locking body 2 to be integrated with the locking body 2. Further, on the inner surface of the cylindrical portion 5, a guide-cum-relief groove 8 is formed in a surface substantially perpendicular to the axis connecting both the window portions 6, covering substantially the entire range in the vertical direction. This groove 8 is for determining the positional relationship between the locking body 2 and the cap body 1 when the locking body 2 is inserted into the cap body 1, and for allowing the both claw pieces 9 on the locking body 2 side to be bent.

The locking body 2 is made by bending a metal thin plate piece into a cylindrical shape with a C-shaped cross section, and is set at a height that allows it to be stored in the cylindrical portion 5. In addition, although the locking body 2 is set to have a slightly larger diameter than the inner diameter of the cylindrical portion 5 in its natural state, by providing a slit 10 between the bent edges, the locking body 2 can be elastically moved in the diameter-reducing direction. It is made deformed so that it can be inserted into the cylindrical portion 5. Further, at the lower end of the surface opposite to the slit 10, a locking pawl 7 that faces the window portion 6 on one side and can be engaged therewith is provided.
is cut outward. However, this locking claw 7
can be bent inward. Further, rectangular openings 11 are formed in opposing faces in the planes perpendicular to the axis connecting the slit 10 and the locking claw 7, respectively. Further, on this lower edge, claw pieces 9 which are allowed to be deflected in the radial direction are formed so as to face each other. Furthermore, above both openings 11, projections 12 are formed to bulge outward. This protrusion 12 is adaptable to the guide/release groove 8 and serves as a guide when the locking body 2 is inserted into the cap body 1.

The fastener C of this example is formed as described above. An example of how the fastener C is used will be described below.

While the garnish G is superimposed on the body B, the cap body 1 and the locking body 2 are integrated. In this case, first, both protrusions 1 of the locking body 2
2 into the guide/relief groove 8. By doing this, as mentioned above, the locking body 2 and the cap body 1
The positional relationship with Therefore, when the locking body 2 is pushed into the cylindrical part 5 in this state, the entire body is pushed into the cylindrical part 5.
The locking claw 7 fits and engages with the window 6 on one side. In other words, since the locking body 2 is installed in the cap body 1 in a manner that prevents it from coming off, and the locking body 2 is inserted with its diameter reduced, it may wobble due to its elastic reaction force. It is integrated without any problem.

After that, place the fastener C against the screw shaft S and push it in firmly. By doing so, the claw piece 9 repeatedly undergoes elastic deformation and successively overcomes the threads of the screw shaft S and engages at an appropriate position. Since the engagement at this time is based on the biting due to the elasticity of the metal claw piece 9, a sufficient engagement force can be obtained with respect to the screw shaft S compared to a resin claw piece. Even if paint is attached to S, it can be scraped off, so it can be reliably engaged regardless of the amount of paint attached.

Contrary to the above, when removing the fastener, the cap body 1 can be easily separated from the screw shaft S by rotating the cap body 1 using a suitable tool (for example, a spanner).

[Effect of idea]

As is clear from the above explanation, according to the present invention, the screw shaft is engaged with the claw piece of the metal locking body, so that a sufficient locking force can be applied to the screw shaft. Even if the screw shaft is coated with paint, it can be securely fastened. Since the locking pawl of the locking body engages with the window of the cap body that covers the screw shaft with the locking body interposed, the locking body is in a state where it cannot be removed from the cap body. It is incorporated in. That is, the fastener of the present invention is convenient because the member to be attached can be fixed to the body simply by pushing the cap body with the locking body assembled onto the screw shaft. Furthermore, in the present invention, since the entire locking body is housed in a synthetic resin cap, the screw shaft is not exposed and the work can be carried out safely.

[Brief explanation of drawings]

Figures 1 to 5 show an embodiment of the present invention, with Figure 1 being a partially cutaway perspective view of the fastener of this example, Figure 2 being a perspective view of the cap body, and Figure 3 being a perspective view of the cap body. is a perspective view of the locking body, FIG. 4 is a front sectional view of the fastener, and FIG. 5 is a sectional view of the same side. Figures 6 to 8 show conventional examples, Figure 6 is an exploded perspective view showing how the conventional fastener is used, Figure 7 is a perspective view of another conventional fastener, and Figure 8 shows paint attached. FIG. 3 is an enlarged cross-sectional view showing an engaged state of the claw pieces in a state where the claw pieces are engaged with each other. 1... Cap body, 2... Locking body, 3... Holding plate, 7... Locking claw, 9... Claw piece, C... Fastener,
B...Body, S...Screw shaft, G...Garnish (mounted member).

Claims (1)

[Scope of utility model registration request] Cross section C that engages with a screw shaft installed upright from the body
It consists of a shaped metal locking body and a synthetic resin cap body that can be stored by elastically deforming the locking body in a diametrical direction, and the cap body with the locking body interposed is attached to the screw shaft. A fastener that is inserted into the body, and the locking body and the cap body are integrally engaged with each other, thereby fixing the attached member in a sandwiched state between the body and the cap body. A cylindrical part capable of housing the screw shaft is erected on the upper surface of the holding plate for pressing the screw shaft, and a part of the cylinder part is provided with a window, and the locking body engages with the screw shaft. A fastener for a vehicle, characterized in that the locking claw has a locking claw facing inward and engaging the window portion of the cap body and extending outward in the radial direction of the locking body. .