JP2547523Y2 - Fasteners for plate-like objects - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a fastener used for fastening plates and other plate-like objects to each other, and particularly to a plate-like object which can be inserted and locked with a low insertion pressure and does not fall down. Provision of tools.

[0002]

2. Description of the Related Art When plate-like objects are assembled and locked, such as when a header trim is mounted on a ceiling portion of an automobile, a header trim to be mounted and a body panel surface to which the header trim is to be mounted are previously formed. The mounting holes are provided, and the header trim and the mounting holes in the body panel are aligned with each other.
Alternatively, a fastener as shown in FIG. 10 is inserted and locked to attach a header trim to the surface of the body panel. In the state where the fastener shown in FIG. 9 or FIG. 10 is attached to the header trim in advance, the legs of the fastener attached to the header trim are inserted into the mounting holes provided on the surface of the body panel. To attach the header trim to the body panel.

A fastener B shown in FIG. 9 is provided with a head 1 having a neck 1c between an outwardly projecting portion 1a and a flange 1b, and protrudes from the head 1 so as to face each other. In addition, the leg 2 is integrally formed on the distal end side. The leg 2 has a convex portion 2a on the outer surface thereof, and the leg 2 has a flexible structure. The neck portion 1c formed by the flange portion 1b and the overhang portion 1a of the first plate-like object P-1 is used as a first locking portion A. The leg 2 is inserted into the mounting hole of the second plate-like object P-2 while being bent inward, and the convex portion 2a and the flange portion 1b elastically returned to the outside of the leg 2 are attached. The second plate-shaped object P-2 is attached to the second locking portion b constituted by the above.

[Problems to be solved by the invention]

In such a conventional fastener B, in order to securely fix the assembled plate-like object, it is necessary to particularly consider locking and fixing of the plate-like object between the flange portion 1b and the convex portion 2a of the leg 2. In general, the flange 1b is provided with a sufficient thickness and hardness, and the leg 2 is provided with a sufficient thickness and hardness so that the leg 2 is elastically deformed to a necessary minimum. However, since such a fastener B does not cause a large elastic deformation of the leg 2 formed, the width between the projections 2a, 2a of the leg 2 needs to be set to the minimum necessary width for the mounting hole. The mounting position between the first plate-like object P-1 using this and the second plate-like object P-2 had to be exactly the same. However, in the actual mounting of the header trim or the like, the position of the fastener B attached to the header trim to be mounted may be displaced from the position of the mounting hole provided on the body panel surface provided in advance. In some cases, it was not possible to attach the header trim with the fastener B. In addition, when mounting the header trim or the like of this type, it is possible to insert and lock the leg 2 of the fastener B in a blind state with respect to the mounting hole on the body panel surface with the fastener B attached to the header trim. In many cases, the attachment of a header trim or the like was practically impossible.

[0005] From such a point, the projections 2a, 2a of the leg 2 of the fastener B
The width between them is designed to be larger than the diameter of the mounting hole of the body panel or the like, and the displacement of the mounting position between the first plate-like material P-1 and the second plate-like material P-2 is determined by A fastener B that absorbs by elastic deformation is provided. However, in this type of fastener B, since the leg 2 having a width much larger than the diameter of the mounting hole provided in the plate-like object and having a width between the convex portions 2a, 2a is used, the leg 2 is sufficiently used. It had to be formed thin so that it could bend. However, in actual mounting of the header trim or the like, the legs 2 of the fasteners B assembled to the header trim or the like are rarely inserted and locked straight into mounting holes provided in the body panel or the like. The leg 2 of the fastener attached to the header trim or the like is pressed against the panel surface near the mounting hole, and the leg 2 is guided to the mounting hole while shifting it. When the leg 2 is pressed at a position different from the mounting hole in this way, the thin leg 2 having a large bending width described above falls down on a panel surface or the like according to the degree of the pressure contact (commonly referred to as buckling). ), The locking force of the leg 2 was greatly lost, and it was difficult to stably fix the plate-shaped object when it was inserted again into the mounting hole.

From such a point, the fastener C shown in FIG. 10 is put to practical use. The fastener C has a structure in which a supporting wall 2c is provided between a pair of leg pieces 2b, 2b provided to face each other, and the supporting wall 2c has a structure in which the leg 2 and the head 1 are connected to each other. . As a result, the distance between the protruding portions 2a of the leg 2 is set to be larger than the diameter of the mounting hole, and even if the leg 2 is thin and has a large amount of bending, the leg 2 itself is practically used. The fastener C does not fall down due to the press-contact caused by the assembling work. However, in such a fastener C, even if the leg 2 is bent inward by the hole edge of the mounting hole, the top side of the leg 2 and the head 1 are connected by the support wall 2c. The leg 2 cannot extend in the longitudinal direction, and elastic deformation of the leg 2 is strongly suppressed.

In view of the disadvantages of the conventional fastener, the present invention can be easily inserted and locked with a small insertion force, effectively absorbs a positional deviation from a mounting hole, and furthermore, falls down. It is an object of the present invention to provide a fastener such as a plate-like object that is free from the risk of occurrence.

[0008]

According to the present invention, in order to achieve such an object, the fastener A is provided with an outwardly projecting portion 1a.
And a head 1 having a neck 1c between the head 1 and the flange 1b. The head 1 protrudes from the side of the flange 1b of the head 1 and is integrally connected at the distal end. The head body 1 comprises a flexible leg 2 and an independent support rod 3 projecting from the head body 1 so as to be located between the legs 2. A portion between the overhang portion 2a and the flange portion 1b is a first locking portion b, and a portion between the convex portion 2a outside the leg 2 and the flange portion 1b is a second engagement portion. It is configured as a stop b.

[0009]

The strut 3 is provided between the flexible legs 2 constituting the fastener A.
Are provided so that the support rod 3 functions to prevent the leg 2 from falling down even when a strong pressing force is applied to the leg 2. Since the support rod 3 between the legs 2 constituting the fastener A is provided separately from the legs 2, when the legs 2 are pressed against each other by the holes of the mounting holes, the length of the legs 2 is increased. It functions to elastically deform in the direction.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A typical fastener A such as a plate-like object according to the present invention will be described below. The fastener A according to this embodiment is preferably made of plastic provided by injection molding from the viewpoint of imparting a sufficient elastic force to the leg 2 and the cost of molding. Karappu fastener A is head 1
And a leg 2 protruding from the head 1 and a support rod 3 provided to extend between the leg 2 and the head 1 between the legs 2.

First, the head 1 has a flange-shaped outwardly extending portion 1a, a flange 1b via a neck 1c, and a concave hole 1d at the top. Also, collar 1b
Is formed in an umbrella shape extending toward the side of the leg 2, and is configured to be suitable for elastically holding the second plate-shaped object P-2. Next, the leg 2 has a configuration in which a pair of leg pieces 2b, 2b projecting from the head body 1 on the side where the flange portion 1b is provided are integrally connected to each other, and the leg pieces 2b, Projections 2a, 2a are provided on the outer surface of 2b so as to gradually bulge outward from the distal end side of the leg 2 toward the base side. Further, the support rod 3 is provided so as to extend from the head 1 between the leg pieces 2b, 2b of the leg 2 to the space between the leg pieces 2b, 2b, and ribs 3a to 3a extend in the rod axis direction of each surface.
Is formed so as to generate a load strength against falling down. The upper portion of the rod 3 on the side of the leg 2b is expanded 3b in a semi-arc shape on the side of the leg 2b to serve as a sliding contact surface when the leg 2b is deformed.

The overhanging portion 1a of the head 1 described above has a groove in which the shape of the mounting portion of the first plate-like object P-1 is formed, and the neck 1c is accommodated in the groove. , Overhang
Although the plate surface at the edge of the mounting hole of the first plate-like object P-1 is sandwiched between the flange 1a and the flange 1b, the disk-shaped overhang 1a has a smaller diameter than the flange 1b. It may be constituted as. When the disc-shaped overhang portion 1a having a diameter smaller than that of the flange portion 1b is used, the mounting hole provided in the first plate-like object P-1 is a large-diameter hole in which the disc-shaped overhang portion 1a fits. A so-called Dharma hole having a small diameter hole communicating with this hole and accommodating the neck 1c may be used.

In the fastener A having the above construction, a portion between the overhang portion 1a and the flange portion 1b of the head 1 is a first locking portion A, and a convex portion 2a on the outside of the leg 2 and a flange are provided. A second locking portion b is formed between the portion 1b. Therefore, the first locking portion b formed by the overhang portion 1a and the flange portion 1b of the head body 1 so that the neck portion 1c of the head body 1 fits into the mounting hole or the mounting groove of the first plate-shaped object P-1. Attach the first plate-like object P-1. Next, by inserting the leg 2 of the fastener A into the mounting hole of the second plate-like object P-2, the leg piece 2b of the leg 2 is bent, and the convex portion 2b of the leg 2 forms the hole edge of the mounting hole. The elastic deformation of the leg 2 is released by the passage, and the convex portion 2b of the leg 2 projects outward. As a result, the second plate-like object P-2 is attached to the second locking portion b formed by the convex portion 2b of the leg 2 and the flange portion 1b.

When the leg 2 is inserted into the second plate-like object P-2, the leg 2 and the support rod 3 are divided so that the leg pieces 2b, 2b of the leg 2 are close to each other. , And also deforms in the length direction of the leg 2, so that the bending width can be set relatively freely. Also, the leg 2 is not positioned in the mounting hole of the second plate-shaped object P-2 and is pressed against the surface of the plate-shaped object,
Even if the leg 2b of the leg 2 is inserted into the mounting hole with a large deviation from the center of the mounting hole, the leg 2b of the leg 2 is pressed against the supporting rod 3, and the leg 2b is tilted until the elastic holding force of the leg 2 is lost. Never be. Note that the gap x formed between the leg 2 and the support rod 3 may have a width that allows the leg 2 to pass through the mounting hole of the second plate-shaped object P-2 due to the bending deformation of the leg 2. However, it is preferable that the bending width of the leg 2 is set to be large inside the convex portion 2a, which is particularly required to be large, and small at the tip end side of the leg 2. By setting the gap x to be small on the distal end side of the leg 2 in this manner, the fall of the leg 2 can be kept within a smaller range with respect to the amount of bending deformation required for the leg 2.

[0015]

[Effects of the Invention] Since the fastener according to the present invention has the structure in which the support rod 3 is provided as described above, the leg 2 can have a large amount of bending, and the protrusions 2a, The width between 2a can be set to be larger than the hole diameter of the mounting hole, and the leg 2 of the fastener A and the second plate-like object attached to the first plate-like object P-1. It has a feature that it can effectively cope with a bending deformation of the leg 2 even when the leg 2 is misaligned with the mounting hole of P-2. In addition, the provision of the support rod 3 makes it unnecessary to make the leg 2 thick and hard, so that the leg 2 can be inserted into the mounting hole of the second plate-like object P-2 with a small pressing force, This has the advantage that the work of attaching the plate-like object is facilitated. Further, the presence of the support rod 3 makes the leg 2
Is reliably prevented from falling down, and loss of resilient holding force caused by buckling of the leg 2 is prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fastener according to an embodiment of the present invention.

FIG. 2 is a front view of the fastener.

FIG. 3 is a side view of the fastener.

FIG. 4 is a plan view of the fastener.

FIG. 5 is a bottom view of the fastener.

FIG. 6 is a partially broken front view showing an attached state.

FIG. 7 is a partially broken front view showing an attached state.

FIG. 8 is a partially cutaway front view showing an attached state.

FIG. 9 is a partially cutaway front view showing an attached state of a conventional fastener.

FIG. 10 is a partially cutaway front view showing a state where a conventional fastener is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Head body 2 Legs 3 Prop A First locking part B Second locking part P-1 First plate-like material P-2 Second plate-like material

Claims (1)

(57) [Scope of request for utility model registration] 1. A head having a neck between an outwardly projecting portion and a flange, and a head protruding from the side of the flange of the head and opposed to the head, and integrally formed at the tip. A flexible leg, and a leg and an independent support rod protruding from the head so as to be located between the legs, between the overhang portion and the flange of the head. Is a first locking portion, and a second locking portion is provided between the convex portion outside the leg and the flange portion.