JPH08121441A - Metallic clip - Google Patents

Abstract

PURPOSE: To simplify the molding die structure of a boss part, so as to reduce the cost of an attaching part by taking the upper end part sides on both side walls of a main body as the contact parts to be brought into contact with the inner peripheral surface of an attaching hole of a panel, and integrally forming check claws to bite the boss part of the attaching member of respective contact parts. CONSTITUTION: The tip edges of respective check claws 3 bite the side surfaces of a boss part 11 from both sides when the boss part 11 of an attaching part 10 is pressed into an U-shaped main body, and shoulder parts 2a of respective elastic engaging pieces 2 are engaged with the hole edges of the attaching hole 13 from bellow when the main body is inserted into the elongated hole-like attaching hole 13 of a panel 12, therefore, the attaching part 10 can be easily fixed to the panel 12. In the fixing state of the attaching member 10, the contact parts 6 of both side walls 1A, 1A are certainly brought in pressure-contact with the inner peripheral surface of the attaching hole 13 and restricted by obtaining the contact regulating action in relation to the hole edge of the attaching hole 13 of the panel 12 of flanges 4, and the check claws 3 integrally formed on respective contact parts 6 bite firmly the side surfaces of the boss part 11 with the reaction obtained by contact of the inner peripheral surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a metal clip for fixing a mounting part such as a garnish to an automobile panel.

[0002]

2. Description of the Related Art As a conventional clip of this type, a Japanese Utility Model Showa 6
There are the ones shown in FIGS. 5 and 6 of JP-A 2-158209. The conventional metal clip is for fixing an attachment component having a boss portion protruding from its back surface to a panel, and is provided with a substantially U-shaped main body formed by punching an elastic metal plate. For both side walls that define a letter shape, an elastic engaging piece that protrudes outward and engages the hole edge of the mounting hole of the panel is formed in a cut-and-raised state at the center of the side wall The non-return claw piece that protrudes into the side surface of the boss portion and bites into the side surface of the boss portion is formed in a bent state.

In actual use, when the boss portion of the mounting part is pushed into the U-shaped body, the tip edges of the check claw pieces bite into the boss portion from both sides. If the clip body is inserted into the long hole-shaped mounting hole that is pre-drilled in the panel, this time, each elastic engaging piece bends inward and passes through the mounting hole, and Engages with the hole edge of the mounting hole, so that the mounting component is easily fixed to the panel.

[0004]

However, in such a conventional metal clip, when the check claw pieces formed on both side walls of the main body are bited into the boss portion of the mounting part from both sides, The parts that engage with the mounting holes of the panel are not the both side walls themselves, but only the elastic engaging pieces formed in a cut-and-raised state on the both side walls, so both side walls of the main body excluding the elastic engaging pieces themselves. Will always be placed in the free state without being directly constrained by the panel mounting holes.

For this reason, when an unexpected external force is applied to the mounting component side in the removal direction (removal direction) while the mounting component is fixed, this causes the side walls of the main body placed in the free state. There is a risk that each of them will spread easily and release their bite into the boss of their non-return claw pieces, or that their bite force will be significantly reduced. It cannot be denied that the fixed state becomes unstable. Also, this means that if you try to pull out the boss part of the mounting part from the mounting hole of the panel when removing the mounting part from the panel side, under the same phenomenon, the metal clip will remain on the mounting hole side this time. Therefore, it was never preferable in terms of workability.

Therefore, a metal clip disclosed in Japanese Utility Model Laid-Open No. 62-77306 has been proposed separately. The metal clip is formed with a series of an engaging shoulder portion that bends outward and a lock piece portion that bends inward on both side walls of the U-shaped body without any cutting and raising work. Then, the former engagement shoulder portion is engaged with the hole edge of the mounting hole of the panel, and the latter locking piece portion is locked to the concave step portions formed on both sides of the boss portion of the mounting component, Both side walls of the main body are constrained by panel mounting holes.

Therefore, under such a metal clip, the locked state of both side walls of the main body can be obtained, and the lock piece portions bent inward can be securely and firmly locked to the concave stepped portion of the boss portion. , For example, even if an unexpected external force is applied to the mounting component in the pulling direction, there is no concern that each lock piece will come off the concave step of the boss, and the mounting condition of the mounting component will become unstable or It is also possible to eliminate the metal clip remaining on the mounting hole side of the panel when the component is removed. However, for this reason, it is inevitable to additionally form a concave stepped portion on the boss side of the mounting component, so that the molding structure of the boss portion becomes complicated this time, and the cost of the mounting component is naturally increased. There are new problems that have caused the price to soar.

[0008]

The present invention was developed in order to effectively solve the problems faced by each of the conventional metal clips. The first invention is that of a U-shaped main body. Assuming a metal clip formed on both side walls, an elastic engaging piece that projects outward and engages with the mounting hole of the panel, and a check claw piece that projects inward and bites into the boss portion of the mounting component,
A structure in which upper end portions of both side walls of the main body are pressure-contacting portions that are in pressure-contact with the inner peripheral surface of the mounting hole of the panel, and a non-return pawl piece that bites into the boss portion of the mounting component is integrally formed on each pressure-contacting portion. It was adopted.

According to a second aspect of the present invention, under the first aspect of the present invention, a notched window is opened in the center of both side walls of the main body, and the portions existing on both sides of the notched window are projected to the outside. No engaging piece, at the lower edge of the pressure contact portion that is continuous between the upper ends of the elastic engaging pieces,
A structure is adopted in which the check claw piece that protrudes inward while facing the cutout window is integrally formed. In addition, according to the second aspect of the invention, it is preferable that an intrusion prevention piece facing the inside of the cutout window is integrally formed at a portion existing below the cutout window.

[0010]

Therefore, in the fixed state of the mounting part using the metal clip of the present invention, the respective pressure contact portions of both side walls of the main body are pressed against the inner peripheral surface of the mounting hole of the panel to be restrained. Therefore, the non-return claw piece formed integrally with the pressure contact portion is surely bited into the side surface of the boss portion with the reaction force obtained from the pressure contact of the inner peripheral surface. Therefore,
For example, even if an unexpected external force is applied to the mounting component side in the pulling direction, there is no concern that the check claw piece will bite into the boss part or the biting force will decrease as in the conventional case. To remove from the panel side,
Even if the boss portion is pulled out from the mounting hole of the panel, there is no fear that the metal clip will remain on the mounting hole side.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to each illustrated embodiment. First, the metal clip according to the first embodiment,
As shown in FIG. 1, both side walls 1A and 1A of a substantially U-shaped main body 1 formed by punching an elastic metal plate as in the conventional case.
1A, an elastic engaging piece 2 that projects outward and engages with a hole edge of a mounting hole of the panel, and a check claw piece 3 that projects inward and bites into the side surface of the boss portion. However, the feature is that the following configuration is adopted.

That is, in the first embodiment, as shown in FIG. 2, both side walls 1A and 1A defining the U-shape of the main body 1.
A flange piece 4 is integrally formed at the upper end edge of the flange as a restricting means that projects outward in a horizontal state.
A notch window 5 having a rectangular shape is opened in the center of 1A, and portions existing on both sides of the notch window 5 serve as the elastic engaging pieces 2 projecting outward, that is, above the notch window 5, in other words. A pressure contact portion 6 for pressing a portion of the side walls 1A and 1A, which is located on the upper end side and is continuous between the elastic engagement pieces 2, with the inner peripheral surface of the mounting hole of the panel.
However, the non-return claw piece 3 that projects inward while facing the inside of the cutout window 5 is integrally formed at the lower edge of each pressure contact portion 6,
In addition, an intrusion prevention piece 7 which stands upright while facing the inside of the cutout window 5 is integrally formed in a portion existing below the cutout window 5. It should be noted that the check claw pieces 3 are formed such that their respective tip edges are displaced from each other, as shown in the drawing, so that their leading edges can be brought as close as possible.

Accordingly, the mounting clip 10 such as a garnish is attached to the panel 12 by using the metal clip of the first embodiment.
In the case of fixing to each other, basically, as in the conventional case, when the boss portion 11 of the mounting component 10 is pushed into the inside of the U-shaped main body 1, each check claw piece 3 is attached to the side surface of the boss portion 11. Since the leading edge bites from both sides, the main body 1 is attached to the panel 1 in this state.
2 is inserted into the long-hole-shaped mounting hole 13 previously formed, the shoulder portion 2a of each elastic engaging piece 2 is engaged with the hole edge of the mounting hole 13 from below. By Fig. 3
The mounting part 10 can be easily fixed to the panel 12 as shown in FIG.

However, when the mounting component 10 is in the fixed state, the side wall 1A.1 of both side walls 1A and 1 is obtained by the action of regulating the contact of the flange piece 4 with the hole edge of the mounting hole 13 of the panel 12.
Since the pressure contact portion 6 of A is necessarily pressed against and restrained against the inner peripheral surface of the mounting hole 13, the check claw piece 3 formed integrally with each pressure contact portion 6 has such an inner peripheral surface. With the reaction force obtained from the pressure contact of, it is guaranteed that the side surface of the boss portion 11 is firmly bitten.

Therefore, even if an unexpected external force is applied to the mounting component 10 side in the pull-out direction, both side walls 1A and 1A of the main body 1 can be easily expanded as in the conventional case, and each of the non-return pawl pieces. There is no possibility of unraveling the biting state of the No. 3 into the boss portion 11 or reducing the biting force, and in order to remove the mounting component 10 from the panel 12 side, the boss portion 11 is removed from the mounting hole 13 of the panel 12. Even when the metal clip is pulled out, there is no fear of the metal clip remaining on the mounting hole 13 side due to the biting of the check claw piece 3 accompanied by the reaction force obtained by the pressure contact with the inner peripheral surface of the mounting hole 13.

Further, in the first embodiment, both side walls 1A
・ Because a relatively large notch window 5 is opened in the center of 1A, some clips intrude into this notch window 5 during heat treatment or handling, so that the clips are careless. There is a risk of being entangled and deformed, but in such a case, in combination with the presence of the check claw piece 3, in particular, the stopper action of the intrusion prevention piece 7 causes another clip in the cutout window 5. Since it is possible to effectively prevent a part of the intrusion, it is possible to prevent the inconvenience described above from occurring.

Next, the metal clip according to the second embodiment will be described. The second embodiment basically follows the structure of the first embodiment as it is, but is different. Omits the cutout window 5 as shown in FIG.
One elastic engagement piece 2 connected to the upper end pressure contact portion 6 is integrally formed at the center of both side walls 1A and 1A of the main body 1, and the inner side of the lower end of the pressure contact portion 6 where the elastic engagement piece 2 does not exist is formed. The non-return claw piece 3 protruding in one direction is integrally formed.

Therefore, even under the metal clip of the second embodiment, the pressure contact portions 6 of the side walls 1A and 1A are attached to the attachment holes 13 by the contact of the flange pieces 4 with the hole edges of the attachment holes 13 of the panel 12. Since it comes into pressure contact with the inner peripheral surface of the non-return claw piece 3 which is integrally formed with the pressure contact portion 6,
Together with the reaction force obtained from the pressure contact of the inner peripheral surface,
It is possible to firmly cut into the side surface of 1. Therefore,
Even if an external force is applied to the mounting component 10 side in the pulling direction, the state in which the check claw piece 3 bites into the boss portion 11 can be released,
There is no fear that the biting force will decrease, and even if the boss 11 is pulled out from the mounting hole 13 of the panel 12 in order to remove the mounting component 10 from the panel 12 side, the metal clip remains on the mounting hole 13 side. It never happens.

In each of the above embodiments, the pressure contact portion 6
Although the flange piece 4 is used as the restricting means that press-contacts the inner peripheral surface of the mounting hole 13, the restricting means is not limited to this, and although not specifically shown,
By using the attachment part 10 or another regulating means provided on the panel 12 side, the pressure contact portions 6 of the side walls 1A and 1A are attached to the attachment holes 13.
It may be configured to be brought into pressure contact with the inner peripheral surface of the above, depending on the implementation.

[0020]

As described above, according to the present invention, by adopting the above configuration, the pressure contact portion of the mounting hole of the panel with respect to the inner peripheral surface of the mounting hole of the panel can be formed without forming an additional concave step portion or the like on the boss side of the mounting component. Only by effectively utilizing the reaction force obtained from the pressure contact, the check claw piece can be firmly bited into the side surface of the boss portion. Therefore, according to the present invention, even if an external force is applied to the mounting component side in the pulling direction, there is no fear that the bite state of the check claw piece with respect to the boss portion will be released or the biting force will decrease, and the mounting component Even if the boss portion is pulled out from the mounting hole of the panel in order to remove it from the panel side, there is no possibility that the metal clip will remain on the mounting hole side. Further, since it is not necessary to form a concave step portion or the like on the boss side of the mounting part, the structure of the molding die for the boss part can be simplified and the cost of the mounting part can be reduced.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a metal clip according to a first embodiment of the present invention.

2A is a front view of the same, FIG. 2B is a side view of the same, and FIG.
Is a plan view of the same.

FIG. 3 is a cross-sectional view of essential parts showing a state in which a mounting component is fixed to a panel using the metal clip of the first embodiment.

FIG. 4 is an overall perspective view showing a metal clip according to a second embodiment.

[Explanation of symbols]

 1 Main body 1A Side wall 2 Elastic engaging piece 3 Check claw piece 4 Flange piece 5 Notch window 6 Pressure contact part 7 Intrusion prevention piece 10 Mounting part 11 Boss part 12 Panel 13 Mounting hole

Claims (3)

[Claims] 1. A U-shaped main body having both side walls, elastic engagement pieces projecting outward to engage with a mounting hole of a panel, and check claws projecting inward to bite into a boss portion of a mounting part. In the metal clip formed with one piece, the upper end sides of both side walls of the main body serve as pressure contact portions that pressure contact with the inner peripheral surface of the mounting hole of the panel, and bite into the boss portion of the mounting component at each pressure contact portion. A metal clip characterized by integrally forming a check claw piece. 2. A cutout window is opened in the center of both side walls of the main body, and the portions existing on both sides of each cutout window are elastic engaging pieces projecting outward, and the upper ends of the elastic engaging pieces. 2. The metal clip according to claim 1, wherein a non-return pawl piece is integrally formed on the lower edge of the press-contact portion that extends inwardly so as to face the inside of the cutout window and project inward. 3. The metal clip according to claim 2, wherein an intrusion prevention piece facing the inside of the cutout window is integrally formed at a portion existing below the cutout window.