JPH11208395A - Mounting structure for shock absorbing pad in interior trin part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure for a shock absorbing pad whereby a hot melt bonding agent is eliminated, the shock absorbing pad can be mounted easily at a reduced, cost in the mounting structure for the shock absorbing pad to be mounted with the shock absorbing pad in an inner surface of pillar trim, door trim, etc. SOLUTION: In an inner surface edge part of a center pillar trim lower 10, a lock pawl 11 is formed, on the other hand, in the other edge part, a clip mounting seat 40 is fixed, one side edge corner part 53 of a shock absorbing pad 50 is lock mounted in the lock pawl 11, on the other hand, by lock mounting a protrusion 55 in the other side in a lock part 46 of the clip mounting seat 40, in place of an adhesive fixing structure using the conventional hot melt system bonding agent, a lock mounting fixing structure completing mounting by one touch operation is adopted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorbing pad, such as a pillar trim, a door trim, a rear side trim, or the like, which effectively absorbs a shock when a shock is applied to the vehicle from the side to ensure occupant safety. The present invention relates to a mounting structure of a shock absorbing pad in an interior component to be attached to the interior component.

[0002]

2. Description of the Related Art Conventionally, as a safety measure for a vehicle, when a shock is applied from the side of the vehicle, such as in a side collision, a shock absorbing pad is provided on the side wall panel and the side wall panel to effectively absorb the shock. Installed between the interior parts.

For example, a mounting structure of a shock absorbing pad installed on a center pillar provided in a side wall panel of a vehicle will be described as an example. As shown in FIG. A pillar trim lower 1 and a center pillar trim upper 2 are provided in the upper portion, respectively. The center pillar trim lower 1 and the center pillar trim upper 2 are each formed of an injection molded body of a synthetic resin such as a PP resin.

On the back side of the center pillar trim lower 1, a shock absorbing pad 3 made of a rigid polyurethane foam or the like is attached so as to correspond to the side collision area A. Normally, as shown in FIG. Lower 1
At the top and bottom of the shock absorbing pad 3, mounting pieces 5 provided with mounting holes 5a are formed on the upper and lower sides of the shock absorbing pad 3 so as to project outward. Adhesion and fixing with the system adhesive a is performed.

More specifically, as shown in FIG. 8, a hot-melt adhesive a is applied to the back surface of a center pillar trim lower 1 corresponding to a side collision area A, and an impact absorbing pad 3 is set on the applied surface. At this time, the mounting boss 4 of the center pillar trim lower 1 is attached to the mounting piece 5 of the shock absorbing pad 3.
The hot-melt adhesive a is poured into the mounting hole 5a, and the shock-absorbing pad 3 is inserted into the mounting hole 5a.
Is firmly attached to a predetermined location on the back surface of the center pillar trim lower 1.

[0006]

However, in the conventional mounting structure of the shock absorbing pad 3, if a shock is applied from the side, the mounting boss 4 may be broken, resulting in a sharp edge. Therefore, considering safety,
The mounting boss 4 can be set only outside the side collision area A. Therefore, there are disadvantages in that the shock absorbing pad 3 becomes large, the material cost increases, and the weight increases.

Further, since the mounting boss 4 is set, sinks are apt to occur on the surface of the center pillar trim lower 1 and the appearance of the room is deteriorated. In addition, the shock absorbing pad 3 is bonded to a predetermined portion of the back surface of the center pillar trim lower 1. Since the fixed hot melt adhesive a is used in particular, the cost is further increased because the hot melt adhesive a is used. In addition, the number of steps such as the application step and the drying step of the hot melt adhesive a is increased, and the working environment is increased. Various disadvantages have been pointed out.

The present invention has been made in view of such circumstances, and eliminates the use of a mounting boss for bonding and fixing in a shock absorbing pad mounting structure installed on the back surface of an interior component installed in a side wall panel. By doing so, the impact absorbing pad can be made more compact, the material cost can be reduced and the weight can be reduced, and there is no appearance defect such as sink marks on the surface of the interior parts. It is another object of the present invention to provide a shock absorbing pad mounting structure for an interior component in which a drying step and the like can be eliminated and the number of mounting steps can be significantly simplified.

[0009]

In order to achieve the above object, an invention according to claim 1 of the present application is mounted on a predetermined portion of a back surface of an interior component installed in a side wall panel of a vehicle, and is provided with a side impact. In the mounting structure of the shock absorbing pad in the interior component where the shock absorbing pad capable of absorbing the impact by being deformed or crushed is formed, a locking claw is formed on the inner surface of the interior component, and the interior component is attached to the side wall panel. A locking portion is provided on a clip mounting seat for mounting a clip for mounting, and the shock absorbing pad is fixedly engaged with the locking claw and the locking portion.

Further, the invention according to claim 2 of the present application is characterized in that the locking claw is provided with an inclined portion for guiding so as to have an insertion guiding property of the shock absorbing pad.

[0011] The invention described in claim 3 of the present application is characterized in that the clip mounting seat adopts a shock absorbing structure that is easily buckled or deformed when a load is applied to the side of the vehicle. And

[0012] Here, as the interior parts, as long as they are installed on the side wall panel of the vehicle and installed at a position where the occupant's body is easy to touch, they can be applied to a center pillar trim, a door trim, a rear corner trim and the like.

The interior part is formed of a resin molded body formed into a desired shape by injection molding or mold press molding of a synthetic resin such as PP resin, and is attached to a side wall panel of a vehicle via a clip. Is done. on the other hand,
The shock-absorbing pad is preferably a molded article such as a rigid polyurethane foam, and has a mounting surface having a shape conforming to the inner surface shape of the interior component and a panel contact projection that contacts the side wall panel.

Further, a shock absorbing pad is engaged with a locking claw provided on the back side of the interior component and a locking portion of the clip mounting seat. The locking claw is preferably provided with a guide inclined portion having a triangular cross section in consideration of the workability of mounting the shock absorbing pad. One or two corners of one edge of the shock absorbing pad may be used. The part is engaged and held. On the other hand, the clip mounting seat may be made of metal or resin, and may have a locking portion for locking the other side edge of the shock absorbing pad. It is preferable that a stop portion is formed, a through hole or a concave portion for accommodating the clip mounting seat is formed in the shock absorbing pad, and a projection to be inserted into the locking portion of the clip mounting seat is provided in the through hole or the concave portion.

Further, it is preferable that the clip mounting seat adopts a shock absorbing structure.
A structure that induces breakage is preferred.

As is apparent from the above configuration, the shock absorbing pad is engaged and fixed by both the locking claw formed on the back surface of the interior part and the locking portion of the clip mounting seat fixed to a predetermined position on the back surface. In addition, the conventional mounting boss can be eliminated, and the shape of the shock absorbing pad can be made compact without being restricted by the mounting boss.

In addition, since the shock absorbing pad is engaged and fixed by the locking claw and the locking portion of the clip mounting seat, the conventional hot-melt adhesive can be eliminated, and the hot-melt adhesive coating step and drying can be performed. Processes can be eliminated.

Further, since the locking claw formed on the back surface edge of the interior component has a guide slope, one side edge of the shock absorbing pad is slid along the guide slope. If so, one side edge of the shock absorbing pad can be easily located on the back side of the interior component.

If the clip mounting seat itself that engages the other side of the shock absorbing pad has a thin-walled structure, an offset structure, or the like, the clip mounting seat is easily deformed or broken by an external impact load. , The shock absorbing pad is likely to be deformed and crushed.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a mounting structure of a shock absorbing pad in an interior component according to the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 1 to 5 show an embodiment in which the present invention is applied to an embodiment in which a shock absorbing pad is attached to a center pillar trim lower. FIG. 1 is an external view showing a center pillar trim, and FIG. FIG. 3 is an explanatory view showing a state where the shock absorbing pad is attached to the center pillar trim lower. FIG. 4 is a plan view seen from the back side showing a state where the shock absorbing pad is attached to the center pillar trim lower. FIG. 5 is an explanatory view showing the operation of a modification of the clip mounting seat used in the present invention.

In FIG. 1 and FIG. 2, the center pillar trim is composed of an upper and lower divided body of a lower center pillar trim lower 10 and an upper center pillar trim upper 20, and the center pillar trim lower 10 and the center pillar trim upper 20 are separated from each other. It is molded into a required shape by injection molding of polypropylene resin.

An adjusting slot 21 is formed in the center of the center pillar trim upper 20, and the center pillar trim lower 10 and the center pillar trim upper 2 are provided.
A slide plate 24 for supporting a webbing 23 of a seat belt drawn out from an outlet 22 between 0 and 0 is provided in the adjustment slot 21 so as to be vertically movable. On the other hand, the center pillar trim lower 10 has a seat belt retractor 25 built in at the base side, and a clip mounting seat 40 is mounted on the back surface of the center pillar trim lower 10,
A resin clip 31 is mounted on the clip mounting seat 40, and the resin clip 31 is attached to the center pillar panel 30.
The center pillar trim lower 10 is housed in the center pillar panel 30 by being press-fitted into the mounting hole 32.

In the present invention, the impact absorbing pad 50 is provided on the inner surface of the side collision area A of the center pillar trim lower 10.
Is easy and inexpensive to install.
As shown in FIGS. 2 and 3, the shock absorbing pad 50 has a curved mounting surface 51 that matches the inner surface shape of the center pillar trim lower 10, and has a panel contact convex so as to face the center pillar panel 30. The shock absorbing pad 50 is formed from a molded article made of a rigid polyurethane foam,
Instead of the conventional hot melt adhesive bonding structure,
It is characterized by the adoption of a fastening structure.

That is, the center pillar trim lower 10
In the side collision area A, a locking claw 11 is formed at the back edge. The locking claw 11 has a triangular shape in the present embodiment, and includes a guide inclined portion 12 and an engaging portion 13 for locking one side edge of the shock absorbing pad 50, but the shape is particularly limited. do not do.

Then, the corner portion 53 of one side edge of the shock absorbing pad 50 is fastened and fixed by the locking claw 11, and the other side of the shock absorbing pad 50 is fastened by the clip mounting seat 40. That is, in the present embodiment, the clip mounting seat 40 is formed of a thin metal plate, mounting flanges 41 are formed on both sides, and a higher mounting seat surface 42 is set in the center.
1 is set in the clip engaging hole 43.

A mounting boss 14 having a relatively small height is protrudingly provided on the back side of the center pillar trim lower 10 in a mounting hole 44 provided in the mounting flange 41 on both sides, and the mounting boss 14 is mounted. The clip mounting seat 40 is mounted at a predetermined position on the back surface of the center pillar trim lower 10 by being inserted into the hole 44 and caulking the end by ultrasonic wave or heat welding. The clip mounting seat 40 is formed with a locking vertical wall 45 extending downward so as to be connected to the mounting seat surface 42. The locking vertical wall 45 has a notch formed by a notch 46. That is, the other side of the shock absorbing pad 50 is engaged.

On the other side of the shock absorbing pad 50, a through hole 54 for accommodating the clip mounting seat 40 is formed, and the through hole 54 is further engaged with the locking portion 46 of the clip mounting seat 40. A projection 55 to be attached is provided. Therefore,
To attach the shock absorbing pad 50 to a predetermined location on the inner surface of the center pillar trim lower 10, one side edge of the shock absorbing pad 50 is slid along the guiding inclined portion 12 of the locking claw 11, and And the other side of the shock absorbing pad 50 is positioned so that the clip mounting seat 40 is housed in the through hole 54. Then, the projection 55 of the shock absorbing pad 50 is fitted into the locking portion 46 of the locking vertical wall 45 of the clip mounting seat 40 by using elasticity, so that the locking claw 11 and the clip mounting seat 40 allow the shock absorbing pad to be fitted. 50 can be firmly engaged and fixed.

As described above, according to the mounting structure of the shock absorbing pad 50 according to the present invention, the application of the hot-melt adhesive can be performed similarly to the conventional hot-melt adhesive using the mounting boss. The drying process can be omitted, and expensive hot-melt adhesives are not required, and molding defects such as sink marks on the product surface caused by the mounting boss can be prevented.
There is an advantage that good appearance design can be obtained.

Further, it is not necessary to enlarge the outer shape of the shock absorbing pad 50 due to the restriction from the mounting boss, so that the shock absorbing pad 50 can be made compact, the material cost can be reduced, and the product can be reduced in weight. be able to.

Further, in the case of using a hot-melt adhesive, a large amount of work space is required for an adhesive application step, a drying step, and the like, and facilities for maintaining a good working environment such as exhaust equipment are required. However, according to the mounting structure of the shock absorbing pad 50 according to the present invention, since the locking claw 11 and the clip mounting seat 40 can be used for one-touch engagement and fixing, the number of working steps can be reduced. It is possible, does not require large-scale equipment, and is preferable in terms of working environment.

In order to make the present invention function effectively, it is preferable that the clip mounting seat 40 has an impact absorbing structure as shown in FIG. That is, the clip mounting seat 40
Has a shock absorbing pad 50 when an external impact is applied.
By setting one vertical wall 47a to be inclined relative to the other vertical wall 47b in order to promote deformation and crushing, the clip mounting seat 40 is set to be inclined when an impact is applied. The clip mounting seat 40 does not hinder the deformation and crushing of the shock absorbing pad 50.

Further, as a modified example of the clip mounting seat 40, although not shown, a broken portion is provided in a part to make it easy to break, or when a clip mounting seat made of resin is used, a thin portion is provided. Alternatively, a structure that promotes breakage and deformation may be employed.

The embodiment described above has a structure in which the shock absorbing pad 50 is attached to the inner surface of the center pillar trim lower 10. However, the present invention is not limited to the center pillar trim lower 10, but may be a vehicle trim such as an automobile door trim or a rear corner trim. The present invention does not deviate from the spirit of the present invention when applied to an interior part which is installed in a side wall panel of the vehicle and which is installed at a place where the occupant's body is easy to touch.

[0035]

As described above, the mounting structure of the shock absorbing pad in the interior part according to the present invention has the following special effects.

(1) The first aspect of the present invention is configured such that the shock absorbing pad is engaged with the engaging claw formed on the rear edge of the interior part and the engaging portion of the clip mounting seat.
Compared to the conventional hot-melt adhesive using the mounting boss, the hot-melt adhesive application process,
The drying step can be eliminated, and the shock absorbing pad can be attached with a single touch, so that the attachment workability is significantly improved.

(2) According to the first aspect of the present invention, since the shock absorbing pad is engaged with the engaging claw formed on the rear edge of the interior part and the engaging portion of the clip mounting seat, The conventional mounting boss can be abolished, and there is no molding defect such as surface sink caused by the mounting boss, so that good appearance and design can be secured.

(3) According to the first aspect of the present invention, since the shock absorbing pad is engaged by the locking claw formed on the rear edge of the interior part and the locking portion of the clip mounting seat, The shock absorbing pad can be made compact without restrictions from the mounting boss, hot melt adhesives can be eliminated, material costs can be greatly reduced, and costs can be reduced. This has the effect of being able to contribute to the weight reduction of the device.

(4) According to the second aspect of the present invention, since the locking claw for engaging the one side edge of the shock absorbing pad has the inclined portion for guiding, the one side edge of the shock absorbing pad is provided. Can be smoothly engaged with the locking claw, and there is an effect that the mounting workability can be further improved.

(5) According to the third aspect of the present invention, the clip mounting seat for engaging the other side of the shock absorbing pad employs a shock absorbing structure which is deformed or broken by an external impact. The shock absorbing pad is easily deformed or broken by a side impact such as a side collision, so that the shock absorbing pad is not hindered from being deformed or crushed, so that a good shock absorbing function can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a center pillar trim to which a mounting structure of a shock absorbing pad according to the present invention is applied.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an exploded perspective view showing one embodiment of the mounting structure of the shock absorbing pad, showing a state where the shock absorbing pad is mounted on the inner surface of the center pillar trim lower.

FIG. 4 is a plan view showing one embodiment of a mounting structure of the shock absorbing pad according to the present invention, in which a center pillar trim lower is viewed from a back surface side.

FIG. 5 is an explanatory view showing the operation of a modified embodiment of the clip mounting seat used in the mounting structure of the shock absorbing pad according to the present invention.

FIG. 6 is a front view showing a conventional center pillar trim.

FIG. 7 is an explanatory view showing a mounting structure of a conventional shock absorbing pad.

FIG. 8 is a cross-sectional view showing a mounting operation of a conventional shock absorbing pad.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Center pillar trim lower 11 Locking claw 12 Guide inclined part 13 Engagement part 20 Center pillar trim upper 30 Center pillar panel 31 Resin clip 40 Clip mounting seat 45 Locking vertical wall 46 Locking portion 47a, 47b Vertical wall 50 Shock absorption Pad 51 Mounting surface 52 Convex part for panel contact 53 Corner part 54 Through hole 55 Projection A Side projection area

Claims (3)

[Claims] An interior part (10) installed in a side wall panel (30) of a vehicle is attached to a predetermined position on the back surface of the interior part (10), and is deformed or crushed by an impact from a side.
In the mounting structure of the shock absorbing pad in the interior component to which the shock absorbing pad (50) capable of absorbing the impact is attached, a locking claw (11) is formed on the inner surface of the interior component (10), and the interior component (10) is attached. Side wall panel (30)
The clip attaching seat (40) for attaching the clip (31) to be attached to the vehicle is provided with a locking portion (46), and the shock absorbing pad (50) is engaged with the locking claw (11) and the locking portion (46). A mounting structure for an impact absorbing pad on an interior component, which is fixedly attached. 2. The locking claw (11) is provided with an inclined portion (12) for guiding so as to provide an insertion guide of the shock absorbing pad (50). The mounting structure of the shock absorbing pad in the described interior part. 3. The clip mounting seat (40) employs an impact absorbing structure that is easily buckled or deformed when a load is applied to the side of the vehicle. The mounting structure of the shock absorbing pad in the described interior part.