JPH0942237A - Mounting structure for part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide mounting structure for a part wherein a work to insert a base plate for a clip in a part holding seat is facilitated. SOLUTION: In mounting structure wherein a holding seat 2 having one way being opened at 2a and three ways being closed by two side walls 2b and a deep wall 3c is arranged on the back of a part 1, and a part is mounted on a panel by using a base plate 12 inserted in a holding seat and a clip 11 having a lock leg locked in the mounting hole of a panel, a pair of lock claws 5 protruded internally are formed at the portion, situated closer to an opening, of two side walls by which a holding seat is partitioned. A pair of resilient arms 15 having respective tips being spread externally by an amount higher than a distance width between a pair of lock claws are horizontally arranged at a stay 14 to intercouple the base plate of a clip and a lock leg. When the base plate of a clip is inserted in a holding seat, each resilient arm is caused to pass with the resilient arm deflect inward by utilizing resiliency thereof. After the passage thereof, a pair of the resilient arms have tips 16 locked to corresponding lock claws.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a mounting structure for mounting parts such as automobile side moldings to a predetermined panel via clips.

[0002]

2. Description of the Related Art A conventional mounting structure for this type of component is disclosed in Japanese Utility Model Laid-Open No. 5603/1993. Although not specifically shown, the conventional mounting structure has a rectangular holding shape for resin parts such as side moldings, one side of which is open on the rear surface and three sides are closed by both side walls and the rear wall. A required number of seats are integrally provided so as to project, and a holding piece that bends inward is extended to each end edge of both side walls that define the holding seat. A pair of locking claws protruding further inward is formed at the portion.

Further, for the clip, a rectangular base plate, which is made of a synthetic resin material, is inserted into the holding seat through its opening, and anchor-shaped locking legs which are engaged with the mounting holes of the panel. The trapezoidal portion is integrally attached to the base portion of the column that connects the base plate and the locking leg. The trapezoidal portion is set so that its front end side dimension is smaller than the pair of lock claws and the rear end side dimension thereof is larger than the pair of lock claws. It is set.

When the parts are attached to the panel, when the base plate of the clip is inserted into the holding seat from the opening while the front end side of the trapezoidal portion faces the opening of the holding seat, the above-mentioned dimensional difference causes. The front end side of the trapezoidal portion can pass between the pair of lock claws without any resistance, but the rear end side of the trapezoidal portion abuts on the lock claws to prevent the passage.

Therefore, at this point, when the base plate of the clip is further forcedly pushed into the holding seat, the rear end side of the trapezoidal portion obtains outward flexure of both side walls defining the holding seat. Then, the pair of lock claws are forcedly expanded and passed, and after passing, the lock claws are locked to the inner edge of each lock claw, so that the clip is prevented from coming off from the holding seat, and at the same time, The base plate of the clip itself is securely held between the holding pieces extending on both side walls that define the holding seat and the back surface of the component. Therefore, after that, the component is attached to the panel by gripping the component and elastically engaging the anchor-shaped locking leg of the clip with the mounting hole that is opened in advance on the panel side.

[0006]

However, under the conventional mounting structure, in order to prevent the clip from coming off from the holding seat, a trapezoidal portion is integrally provided on the clip side, and a dimensional difference between the front and rear ends thereof is provided. While utilizing the above, the configuration is such that the rear edge of the trapezoidal portion is forcibly locked to the pair of lock claws, and even if a taper guide surface is provided on the outer edge side of the lock claw, However, there was a dislike that the work of inserting the clip base plate into the holding seat was difficult. In particular, this phenomenon requires a considerably large force when both side walls connected to the lock claws of the holding seat are thick, so that workability is more difficult. Become. For this reason, if both side walls connected to the lock pawl are made thin so that they can be easily bent, it is relatively easy to push and expand the lock pawl outward, so it may be possible to improve insertion work, but this time , There is a risk that the clip will not come off properly. The same can be said for the hardness of the molding material of the holding seat itself.

[0007]

The present invention was developed in order to effectively solve the problems of the above-described conventional mounting structure. One side is open on the back surface of the component and three sides are the side wall and the back wall. Assuming a mounting structure for mounting the above-mentioned components on the panel using a clip provided with a closed holding seat and a base plate inserted into the holding seat and a locking leg engaged with the mounting hole of the panel, A pair of inwardly projecting lock claws are formed in the opening side portions of both side walls that define the holding seat, and the tip of the pair of lock claws is formed on the pillar connecting the clip base plate and the locking leg. A pair of elastic arms that are more outwardly spread than the other, and when the base plate of the clip is inserted into the holding seat, the tips of the pair of elastic arms are locked to the corresponding lock claws. Adopted.

Therefore, according to the present invention, when the base plate of the clip is inserted into the holding seat of the component, for example, the tips of the pair of elastic arms are located outwardly of the gap between the pair of locking pawls. Even when the lock claws are widely spread, it is possible to allow each elastic arm to flex and pass inward by utilizing its own elasticity in the process of passing between the pair of lock claws. The base plate can be inserted smoothly and easily without being affected by the thickness of the wall or the hardness of the molding material. Moreover, after passing between the lock claws, the pair of elastic arms returns to the original shape, and the tip of itself is firmly locked to the corresponding lock claw, so that the clip can be reliably removed from the holding seat. Will be prevented.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail based on an illustrated embodiment, and a mounting structure according to the embodiment also has a back surface side of a resin component 1 as shown in FIG. In this state, a holding seat 2 is provided so that one side has an opening 2a and three sides are closed by both side walls 2b and a back wall 2c, and the base plate 12 of the resin clip 11 is inserted into the holding seat 2 from the opening 2a. Then, the component 1 is attached to the panel P by engaging the anchor-shaped locking leg 13 of the clip 11 with the attachment hole H of the panel P, which will be described later. The point is that the configuration of is adopted.

First, the necessary number of the above-mentioned holding seats 2 are integrally provided on the back surface of the component 1, but the opening 2a is formed at the end edges of the side walls 2b and the back wall 2c. A holding wall 3 having a central notch 4 opened toward the front is formed in a continuous state to positively give a box-like shape to the holding seat 2 itself, while holding the holding seat 2 close to the opening 2a of the side walls 2b. A pair of lock claws 5 projecting inward are integrally formed at the edge of the wall 3, and the outer ends of the lock claws 5 are tapered guide surfaces 5a that spread outward.

Further, as shown in FIG. 2, the tip of the clip 11 is located near the base of the one end of a column 14 having a rectangular cross section for connecting the base plate 12 and the anchoring leg 13 to each other. A pair of elastic arms 15 expanded outwardly from the gap width of the pair of lock claws 5 is flexibly provided laterally in a plane-symmetrical relationship, and the tip end step portion 16 of each elastic arm 15 is formed by the pair of elastic arms 15. It is configured to be locked to the inner end edge 5b of the lock claw 5. For this reason, according to the present embodiment, the central cutout 4 of the holding wall 3 has a shape substantially similar to the outer contours of the pair of elastic arms 15, while the base plate 12 of the clip 11 is loosened in the holding seat 2. The base plate 12 has a slightly larger width on the other end side in order to regulate the amount of insertion into the holding seat 2 in particular.

In the figure, 17 is a pair of elastic arms 15 described above.
Of the pair of rattling prevention pieces formed on one end side of the support column 14 in the upper part of the column, the anchor-shaped locking leg 13 has a mounting hole H for the panel P.
When it is attached to the clip 11, it is brought into contact with the peripheral surface of the mounting hole H together with the other end surface of the column 14, and the clip 11 in the attached state.
It serves to prevent rattling in each direction.

Therefore, when the component 1 is attached to the panel P using the clip 11 having such a structure, first,
Similarly to the conventional case, the base plate 12 of the clip 11 is inserted into each holding seat 2 of the component 1 through the opening 2a from one end side of the column 14, but the base plate 12 is inserted into the holding seat 2. Accordingly, the taper guide surface 5a of each lock claw 5
The pair of elastic arms 15 that have spread outwardly also try to pass between the pair of lock claws 5 by the guide.

However, in this passage, even if the tips of the pair of elastic arms 15 are widened outward beyond the gap width of the lock claws 5, in the process of passing between the lock claws 5, It is automatically permitted that the pair of elastic arms 15 bends inward by using their own elasticity and pass while being centered, and then settled in the central cutout portion 4 of the holding wall 3,
Compared with the conventional one, the insertion work of the base plate 12 into the holding seat 2 can be performed smoothly and easily.

When completely passing between the lock claws 5, this time, as shown in FIG. 3, the pair of elastic arms 15 return to their original shapes, and the respective lock claws 5 corresponding to the respective tip end step portions 16 are returned.
Since it is firmly locked to the inner end edge 5b of this, the slip-off of the clip 11 from the holding seat 2 can be reliably prevented. In this case, even if a dimensional error occurs, the dimensional error can be effectively absorbed, so there is no fear of being adversely affected by the dimensional error.

Further, under such a state, the base plate 12 itself of the clip 11 is surrounded by the side walls 2b and the back wall 2c, and the inner surface of the holding wall 3 and the bottom surface of the holding seat 2 (the present embodiment). In that case, the clip 1 is securely held between the backsides of the parts 1 and the clip 1 together with the above-mentioned removal prevention state.
1 is reliably held on the holding seat 2 side of the component 1. Therefore, after that, while gripping the component 1, as shown in FIGS.
As shown in FIG. 7, if the anchor-shaped locking leg 13 of the clip 11 is elastically engaged with the mounting hole H formed in advance on the panel P side, the component 1 can be reliably mounted on the panel P side. . When the locking leg 13 is engaged with the mounting hole H, the other end surface of the column 14 and the backlash preventing piece 17 come into contact with the opposing circumferential surfaces of the mounting hole H, as shown in the drawing. Also, there is no fear that the clip 11 itself will rattling in the mounting hole H together with the component 1.

[0017]

As described above, according to the present invention, by adopting the above structure, the base plate of the clip is held by the clip without being affected by the thickness of both side walls defining the holding seat and the hardness of the molding material. It is possible to smoothly and easily insert the clip into the seat, and also to provide a strong retaining force of the clip from the holding seat. Therefore, under the present invention, it goes without saying that the thickness of both side walls defining the holding seat can be increased as necessary, but in particular, due to the adoption of the elastic arm, a dimensional error with the lock claw or the like is caused. It also becomes possible to absorb effectively.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential parts showing the relationship between a component and a clip used in a mounting structure according to an embodiment of the present invention.

2A is a front view of the clip, FIG. 2B is a plan view of the clip, FIG. 2C is a side view of the clip, and FIG. 2D is a sectional view taken along line AA of FIG. 2C.

FIG. 3 is a plan view of an essential part showing a state in which a pair of elastic arms of the clip are engaged with the lock claws of the holding seat with a part cut away.

FIG. 4 is a cross-sectional view of essential parts showing a state in which components are attached to a panel.

FIG. 5 is a cross-sectional view of an essential part showing a state in which components are attached to a panel from another direction.

[Explanation of symbols]

 1 Component 2 Holding Seat 2a Holding Seat Opening 2b Holding Seat Side Wall 2c Holding Seat Back Wall 3 Clamping Wall 4 Center Cutout 5 Lock Claw 5a Lock Claw Outer Tapered Guide Surface 5b Lock Claw Inner Edge 11 Clip 12 Base plate 13 Locking leg 14 Strut 15 Elastic arm 16 Tip part of elastic arm 17 Anti-backlash piece

Claims (1)

[Claims] 1. A retainer seat, which is open on one side and closed on both sides by three side walls and a rear wall, is provided on the back surface of the component, and is engaged with a base plate and a panel mounting hole inserted into the retainer seat. In a mounting structure for mounting the above components to a panel using a clip provided with a stop leg, a pair of locking claws projecting inward are formed at portions of both side walls defining a holding seat near openings, and a base plate of the clip is formed. When the base plate of the clip is inserted into the holding seat by laterally installing a pair of elastic arms whose ends extend outwardly from the gap width of the pair of lock claws on the pillar that connects the A mounting structure for a component, wherein the tip ends of the pair of elastic arms are configured to be locked to corresponding lock claws.