JP2525494Y2 - Fastener - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener for fixing an interior material such as a carpet to a mounting surface such as a floor surface or a wall surface in a vehicle cabin.

[0002]

2. Description of the Related Art Conventionally, as a fastener for fixing a carpet on a floor in a vehicle cabin, for example, a fastener having a structure shown in FIG. 7 is known. The fastener 90 has a cylinder main body 91 that is fitted into a stud bolt 60 protruding from the floor surface F, and a lower surface of an inner hole of the cylinder main body 91 is engaged with the stud bolt 60 to engage with the stud bolt 60. Claws 94 are formed. And
The holding body 70 is placed on the carpet C laid on the floor F, the cylinder main body 91 is fitted into the stud bolt 60 through the insertion hole 76 of the holding body 70, and the locking claw 94 is engaged with the stud bolt 60. By doing so, the carpet C is fixed on the floor F.

[0003]

In fastener 90 described above Disclosed invention is to provide a, when fixing the thin carpet C ₁ as shown in FIG. 7, there is no problem because the latching allowance for the stud bolts 60 of the tube main body 91 is sufficiently large. However, as shown in FIG. 8, when fixing a thick carpet C ₂ in high grade vehicles, since the latching margin is reduced,
Engaging into the stud bolt 60 of the tube main body 91 becomes unstable, fixed carpet C ₂ becomes unstable with respect to turn the floor F.

[0004] In view of the above problems, an object of the present invention is to attach interior materials (carpets, etc.) having different thicknesses to a mounting surface (floor surface, etc.).
It is an object of the present invention to provide a fastener which can be engaged with a bolt with a sufficient allowance even when fixing the bolt.

[0005]

In order to achieve the above-mentioned object, the present invention is directed to a method in which a holding member is engaged with a bolt projecting from a mounting surface and a pressing member is pressed against the surface of an interior material provided on the mounting surface. A fastener for fixing the interior material to the mounting surface, the locking cylinder having a locking claw that engages with the bolt on an inner peripheral surface; A pressing cylinder having a pressing flange that presses the pressing body at one end so as to be fitted and inserted, and at the mutual fitting portion between the locking cylinder and the pressing cylinder, these two cylinders can be extended and contracted at an arbitrary length. A locking surface and a locking claw that are removably engaged are formed.

[0006]

In the fastener configured as described above,
The locking cylinder and the pressing cylinder are fitted with an arbitrary length of expansion and contraction, and both cylinders are engaged with the arbitrary expansion and contraction length by the locking surface and the locking claw formed in the fitting portion of both cylinders. Is done. Therefore, even if the thickness of the interior material attached to the mounting surface is variously different, the length of the locking cylinder and the pressing cylinder is adjusted according to the thickness of the interior material, so that the bolt on the mounting surface can be sufficiently provided. The locking claw of the locking cylinder is engaged with a slight allowance, and the pressing body is pressed against the surface of the interior material of the mounting surface by the pressing flange of the pressing cylinder.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the fastener 10 has a locking cylinder 20 and a pressing cylinder 40.

The locking cylinder 20 has a cylindrical shape whose upper end is closed. Opposite positions of the outer peripheral surface of the locking cylinder 20 include two locking surfaces 2 having a predetermined width from the central portion to the upper portion.
2 are formed. As shown in FIG. 3, each locking surface 22 is formed in a saw-tooth shape having a cross section having an inward slope and a horizontal locking surface alternately ascending upward.

Each of the locking cylinders 20 has a respective locking surface 22.
, A pair of locking pieces 24 are formed so as to be elastically deformable inward and outward by a substantially U-shaped cut hole. As shown in FIG. 3, a locking claw 26 elastically engaged with a screw portion 62 of the stud bolt 60 is provided at a lower end portion on the inside thereof.
Are protruded from each other. Also, as shown in FIG.
A ridge 28 is formed along the longitudinal direction of the locking cylinder 20 at a portion between the two locking surfaces 22 on the outer peripheral surface of the locking cylinder 20.

On the other hand, the pressing cylinder 40 has a cylindrical shape having an inner hole slightly larger in diameter than the outer peripheral surface of the locking cylinder 20, and a disc-shaped pressing flange 48 is formed at the upper end thereof.

A pair of connecting pieces 42 are formed at opposing positions on the side of the pressing cylinder 40 so as to be elastically deformable inward and outward by substantially U-shaped cut holes. As shown in FIG. 3, the locking cylinder 20
Locking claws 44 are provided to protrude from the locking surface 22 so as to be detachable. Also, on the inner peripheral surface of the pressing cylinder 40,
Grooves 46 are slidably fitted to the respective ridges 28 of the locking cylinder 20.

Then, as shown in FIG. 2, the engaging cylinder 20 and the pressing cylinder 4
0 is prevented from rotating and is fitted, so that the displacement between the locking surface 22 and the locking claw of the locking piece 42 is prevented. Further, when the two cylinders 20 and 40 are fitted and inserted, the connecting piece 42 of the pressing cylinder 40 is elastically deformed outward, and its elastic restoring force causes the locking claws according to the length of the two cylinders 20 and 40 to expand and contract. 44 is engaged at an arbitrary position on the locking surface 22 of the locking cylinder 20. This engaging force prevents the pressing cylinder 40 from coming out of the locking cylinder 20.

The fastener 10 configured as described above is
In advance, the locking claw 42 of the pressing cylinder 40 is in an extended state in which it is engaged with the uppermost position of the locking surface 22 of the locking cylinder 20.

Next, as shown in FIG.
The case where the carpet C is fixed on the floor F of the vehicle using the following will be described. 5 and 6 are cross-sectional views of FIG.
A case of fixing a thin carpet C ₁ shows the case where 6 is fixed a thick carpet C _2.

First, two stud bolts 60 are placed on the floor F.
And the carpet C is laid on the floor F. The carpet C is provided with mounting holes H corresponding to the stud bolts 60 in advance.

Then, the pressing body 70 is placed on the carpet C. The pressing body 70 has a rectangular plate-shaped main body 72 and a pressing piece 74 protruding downward from the outer edge of the main body 72. The main body 72 has two insertion holes corresponding to the stud bolts 60. A step portion 78 corresponding to the pressing flange 48 of the fastener 10 is provided around each insertion hole 76.
Are formed.

Then, the locking cylinder 20 and the pressing cylinder 40 are inserted through the respective insertion holes 76 of the pressing body 70, and the pressing cylinder 4
The locking cylinder 20 is fitted into the stud bolt 60 such that the zero pressing flange 48 is pressed strongly downward. Then, in the case of a thick carpet C _2, as shown in FIG. 6, the relative positional relationship between the locking cylinder 20 and the pressing cylinder 40 is still maintained, the locking cylinder 20 is fitted to the entire stud bolt 60, The locking claw 26 is engaged with a lower portion of the stud bolt 60.

Further, as shown in FIG. 5, in the case of thin carpet C _1, after the locking cylinder 20 as shown in FIG. 6 is fitted to the entire stud bolt 60, subsequently pressing cylinder 40 in the locking cylinder 20 It moves relatively downward. At that time, press cylinder 4
No. 0 connecting piece 42 is elastically deformed outward and the locking claw 44 slides downward on the locking surface 22, and the locking claw 44 is engaged with the lower portion of the locking surface 22 by the elastic restoring force of the connecting piece 42. To wear.

5 and 6, the fastener 1
Pressing body 7 by pressing force from pressing flange 48
The zero pressing piece 74 presses the carpet C downward, and the carpet C is fixed on the floor F.

As described above, according to the fastener 10, even when the carpet C is thin or thick due to the grade difference of the vehicle, the carpet C is engaged with the stud bolt 60 with a sufficiently large margin. Therefore, regardless of the thickness of the carpet C, the fastening of the fastener 10 to the stud bolt 60 becomes stable, and thus the poor fixing of the carpet C to the floor F is prevented.

In the above-described embodiment, the fastener 10 for fixing the carpet C to the floor F has been exemplified, but the present invention is not limited to this. For example, it can be used as a fastener for fixing the side trim to the side wall surface of the passenger compartment. Further, the locking cylinder may be provided with no ridge, and the pressing cylinder may not be provided with the groove, and the locking surface may be provided on the entire peripheral surface of the locking cylinder. In addition, a locking surface is provided on the outer peripheral surface of the locking cylinder, and a locking claw is not provided inside the pressing cylinder, but a locking claw is provided outside the locking cylinder, and an inner circumference of the pressing cylinder is provided. A locking surface may be provided on the surface. Further, the outer peripheral surface of the locking cylinder and the pressing cylinder are not limited to the cylindrical shape, but may be a square cylindrical shape. In addition, it is needless to say that the present invention can be implemented in a form in which various changes are made based on the knowledge of those skilled in the art.

[0022]

[Effect of the invention] As described above, according to the invention,
Since the locking cylinder and the pressing cylinder expand and contract according to the thickness of the interior material, the locking claws of the locking cylinder can be engaged with the bolt with a sufficient allowance, so that the thickness of the interior material varies. Even if different, the interior material can be stably fixed to the mounting surface without fixing failure.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view showing the connected state.

FIG. 3 is a longitudinal sectional view thereof.

FIG. 4 is a diagram showing a state of use.

FIG. 5 is a sectional view of the used state, showing a case where a thin carpet is fixed.

FIG. 6 shows a case where a thick carpet is fixed.

FIG. 7 is a sectional view showing a use state of a conventional fastener,
This shows a case where a thin carpet is fixed.

FIG. 8 shows a case where a thick carpet is fixed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Fastener 20 Locking cylinder 22 Locking surface 26 Locking claw 40 Pressing cylinder 44 Locking claw 48 Pressing flange

Claims (1)

(57) [Scope of request for utility model registration] 1. A fastener for fixing an interior material to the mounting surface by pressing a pressing body against a surface of the interior material attached to the mounting surface and being engaged with a bolt protruding from the mounting surface. A locking cylinder having a locking claw on the inner peripheral surface to be engaged with the bolt, and a pressing flange which is inserted into the locking cylinder so as to be able to expand and contract in the cylinder direction and presses the pressing body at one end. A pressing surface having a pressing surface having a locking surface and a locking claw for removably engaging these two tubes with an arbitrary expansion and contraction length at a mutual fitting portion between the locking tube and the pressing tube. A fastener characterized by being formed.