JPH1035373A - Pillar garnish of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate assembly and integration of a grid shock absorbing rib body and an outer shell by forming a temporarily fixed click and a temporarily fixed groove to be engaged with each other on an outer surface of a pillar garnish installation seat part and a roughly intermediate part of a longitudinal rib in a specified grid part of the shock absorbing rib body. SOLUTION: A temporarily fixed groove 27 to open on an end surface (surface of an end to face the side of an installation surface of a pillar garnish) to a roughly intermediate part is formed to match a position of a temporarily fixed click 17 of an outer shell 11 on a longitudinal rib 22 in a specified grid part 25a in which an installation seat part 12 of the outer shell 11 is fit. Work to fix a shock absorbing rib body 21 on the outer shell 11 is carried out by firstly making it possible to fit the installation seat part 12 of an inner surface of the outer shell 11 in the grid part 25a in which the temporarily fixed g groove 27 exists and pressurizing the shock absorbing rib body 21 toward the inner surface 11a of the outer shell 11. Thereafter, the temporarily fixed groove 27 of the shock absorbing rib body 21 and the temporarily fixed click 17 of the installation seat part 12 of the outer shell 11 are engaged with each other, and the shock absorbing rib body 21 is temporarily fixed on the inner surface 11a of the outer shell 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pillar garnish for an automobile, and more particularly, to a pillar garnish having a grid-like shock absorbing rib fixed in an outer shell.

[0002]

2. Description of the Related Art Pillars are formed on a vehicle body at a boundary between a windshield and a side glass, a boundary between a front glass and a rear glass, and the like. Since the pillars are made of steel pillars, exposing the interior of the vehicle to the interior of the vehicle not only impairs the appearance of the interior of the vehicle but also may cause injury if a part of the occupant's body is hit. Therefore, as shown in FIG. 5, resin-made pillar garnishes 51, 52, and 53 are attached to the inner surface of the steel pillar. Reference numeral 51 denotes a front pillar garnish, 52 denotes a center pillar garnish, and 53 denotes a rear pillar garnish.

There is a pillar garnish made of a hard resin molded into a predetermined shape. Among them, particularly, the front pillar garnish 51 and the center pillar garnish 52 which may hit the occupant's body due to sudden braking, a car accident, etc.
FIG. 6 showing the back side and FIG.
As described above, there is a structure in which a lattice-shaped shock absorbing rib body 60 is fixed to the inner surface of a predetermined portion of an outer shell 55 made of hard resin. The outer shell 55 forms the outer shape of the pillar garnish and constitutes the outer surface, and is formed into an outer shape of the pillar garnish by injection molding. On the other hand, the lattice-shaped shock absorbing rib body 60 absorbs shock by bending deformation of the shock absorbing rib body 60 when an impact is applied to the outer shell 55 of the pillar garnish, and extends along the longitudinal direction of the outer shell 55. The vertical rib 61 and a horizontal rib 62 intersecting the vertical rib 61 are integrally formed. Reference numeral 59 denotes a mounting seat portion erected on the inner surface 55a of the outer shell 55, and a clip for mounting the pillar garnish to a pillar of the vehicle body is mounted.

The outer shell 55 and the shock absorbing rib body 60 are formed separately from each other in view of the difference in materials used and the releasability during molding. The body 60 is fixed. The shock absorbing rib body 60
Is fixed to the outer shell 55 at a correct position on the inner surface of the outer shell 55, and furthermore, by an impact, so that the shock absorbing rib body 60 can exert a desired shock absorbing property when a shock is applied to the pillar garnish. It must be firmly fixed so that it does not come off.

Therefore, conventionally, as shown in FIG. 7, a welding projection 5 is provided upright at a predetermined position on the inner surface of an outer shell 55.
6 is inserted into a hole 64 formed in a bottom plate 63 provided in a lattice portion at a predetermined position of the shock absorbing rib body 60, and the head of the welding projection 56 is heated and melted, thereby forming the outer shell 55 and the shock absorbing rib. It is integrated with the body 60.

In addition, the welding is performed to prevent the shock absorbing rib body 60 from rattling due to vibration or the like during running of the vehicle and thereby to prevent noise from being generated between the outer shell 55 and the inner surface of the outer shell 55. It is necessary that the shock absorbing rib body 60 be pressed against the pressure. Therefore, conventionally, the temporary fixing claws 56a, 56b, 57a, 57b which engage with the vertical ribs 61a outside the shock absorbing rib body 60 and the cutouts 65a, 65b formed at the ends of the predetermined horizontal ribs 62a are provided. , Formed on the inner surface of the outer shell 55, and the welding is performed while the shock absorbing rib body 60 is pressed and fixed to the inner surface of the outer shell 55 by the temporary fixing claws.

However, in the pillar garnish having the above-described structure, the shock absorbing rib body 60 is temporarily fixed by attaching the outer shell 55 to the outer surface of the vertical rib 61a outside the shock absorbing rib body 60 and the end of the horizontal rib 62a. Since the temporary fixing claws 56a are locked, the temporary fixing claws 57a, 57b are temporarily fixed.
And the plane directions of the lateral ribs 62a coincide. As a result, the transverse ribs 62a, that is, the shock absorbing ribs 60 are not easily deformed when the shock absorbing ribs 60 are temporarily fixed, and there is a problem that the temporary fixing work and the assembling work of the shock absorbing ribs 60 are not easy.

Further, in the pillar garnish having the above structure, the welding projection 56 on the inner surface of the outer shell 55, the mounting seat 5
9 and temporary fixing claws 56a, 56b, 57a, 57b are present at different positions. Therefore, in order to allow the outer shell 55 to be released from the injection mold after the injection molding, the welding projection 56, the mounting seat 59, and the temporary fixing claws 56a, 56b,. In this case, the number of the slide dies must be used corresponding to the number of the dies, and not only the mold cost and the molding cost of the pillar garnish are increased, but also the molding operation is troublesome.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and is intended to make it easy to assemble and integrate a grid-like shock absorbing rib body and an outer shell, and to form the pillar at low cost and easily. Provide garnish.

[0010]

According to the present invention, there is provided a vertically long outer shell constituting an outer surface of a pillar garnish, and a lattice-like structure temporarily fixed to the inner surface of the outer shell and permanently fixed in the outer shell by welding or the like. In a pillar garnish for an automobile, comprising a shock absorbing rib body, a pillar garnish mounting seat part that fits within a lattice portion of the shock absorbing rib body is erected on the inner surface of the outer shell, and the pillar garnish mounting seat part is A temporary fixing claw and a temporary fixing groove which engage with each other are formed on an outer surface and a substantially middle portion of a vertical rib in a predetermined lattice portion of the shock absorbing rib body.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing the back side of a pillar garnish according to an embodiment of the present invention, FIG. 2 is an enlarged perspective view showing a part thereof, FIG. 3 is an exploded perspective view of the embodiment,
FIG. 4 is a sectional view of the slide mold at a position 4-4 in FIG.

A pillar garnish 10 shown in FIGS. 1 to 3 is attached to an inner surface of a pillar of an automobile body by a clip (not shown), and includes an outer shell 11 and a shock absorbing rib body 21 fixed to the inner surface thereof. Consisting of

As is better understood from FIG. 3, the outer shell 11 defines the shape of the pillar garnish 10 and constitutes the outer surface thereof. The outer shell 11 is formed by injection molding a vinyl chloride resin or a polypropylene resin into the outer shape of the pillar garnish. And other hard resin products. The outer shell 11 has a vertically long shape along the vertical direction, and has a pillar garnish mounting seat portion 12 and a welding projection 19 at a predetermined position on its inner surface 11a.
Is erected.

The mounting seat portion 12 is used for mounting on a vehicle body pillar, has a substantially trapezoidal tunnel shape, and has a side wall 13, 1 between the inner surface 11 a of the outer shell 11.
3 and a mounting surface 14 at the top, a space 15 opened in the up-down (vertical) direction is formed. The head of the clip is inserted into the space 15 when the clip is attached to the vehicle body pillar. The mounting seat portion 12 is provided at a position where the impact absorbing rib body 21 described below can be fitted into a predetermined lattice of the impact absorbing rib body 21 when the impact absorbing rib body 21 is fixed to the inner surface 11a of the outer shell 11.

The mounting seat 12 includes an outer shell 11 and an inner surface 11.
a mounting hole 16 on the top mounting surface 14 facing
Is formed in a shape in which a part thereof is opened as a clip insertion port 16a, and a mounting clip can be mounted through the clip insertion port 16a.

Opposite side walls 13, 1 of the mounting seat 12
(3) One of the upper and lower surfaces (one vertical surface) on the outer surface
13a, temporary fixing claws 17, 17 aligned with 13a
Are formed to protrude. The temporary fixing claw 17 engages with the vertical rib 22 of the shock absorbing rib body 21 when the shock absorbing rib body 21 is welded to the inner surface 11a of the outer shell 11 and is permanently fixed, so that the shock absorbing rib body is surely secured without rattling. 21 is held. In order to make the temporary fixing claw 17 easy to engage with the vertical rib 22 of the shock absorbing rib body 21 and to prevent the temporary fixing claw 17 from being detached after the engagement, the temporary fixing claw 17 protrudes outward as it approaches the inner surface 11 a of the outer shell 11. The volume is formed in a large triangular shape.

The welding projections 19 are for permanently fixing the shock absorbing ribs 21. In this example, the planar shape is a cross shape. The welding projection 19 is inserted into an insertion hole 29 of a bottom plate 28 formed in a predetermined lattice portion of the shock absorbing rib body 21, and the head of the projection 19 is melted to connect the shock absorbing rib body 21 to the outer shell 11. It is firmly fixed to the inner surface 11a.

The outer shell 11 having the above-mentioned structure is formed by a known injection molding, and an injection molding die used at this time is provided with a slide die for forming a space 15 of the mounting seat portion 12. However, the temporary fixing claws 17 are formed on the outer surface of the mounting seat 12 and
2 and project in a direction orthogonal to the sliding direction of the slide type. Therefore, the slide die provided in the injection mold for the outer shell 11 cuts the slide die at the same position as 4-4 in FIG.
The slide mold 31 forming the second space 15 can also serve as a slide mold for the temporary fixing claw 17. Therefore, the structure of the injection mold for molding the outer shell 11 is simplified,
The molding of the outer shell 11 is inexpensive and simple. Moreover, in this example, since the temporary fixing claws 17 are formed in alignment with the end surfaces 13a of the side walls 13 of the mounting seat 12 existing on the pulling-out side of the slide die 31, the slide die 31 has The provision of the step portion 32 can also serve as a slide type for the temporary fixing claw 17, and the structure of the slide type 31 is further simplified.

On the other hand, the shock-absorbing rib body 21 is to bend when the occupant's body hits the pillar garnish to relieve the shock, and is formed by injection molding of a hard resin such as a vinyl chloride resin or a polypropylene resin. As is better understood from FIG. 3, the shock absorbing rib body 21 has a lattice shape having a plurality of lattice portions 25 each composed of a vertical rib 22 and a horizontal rib 24. The vertical ribs 22 and the horizontal ribs 24
The number of the impact absorbing ribs 21 makes the desired flexibility of the bending,
In addition, the grid portion 25 formed by the vertical ribs 22 and the horizontal ribs 24
Is determined in consideration of the material and thickness of the shock absorbing rib body 21 so that the mounting seat portion 12 fits in the predetermined position.

The vertical rib 22 in the predetermined lattice portion 25a in which the mounting seat portion 12 of the outer shell 11 fits is temporarily fixed to the substantially middle portion thereof with its end face (the end face facing the mounting face side of the pillar garnish) open. A groove 27 is formed at the position of the temporary fixing claw 17 of the outer shell 11. This temporary fixing groove 27 is used for welding and fixing the shock absorber 21 to the inner surface of the outer shell 11.
The temporary absorbing claws 17 of the outer shell 11 are engaged to
Is temporarily fixed to the inner surface of the outer shell 11.

The shock absorbing rib body 21 has a lattice portion 25 at a position corresponding to the welding projection 19 of the outer shell 11.
As can be better understood from FIG. 2, the bottom of b is closed by a bottom plate 28, and an insertion hole 29 for the welding projection 19 is formed through the bottom plate 28.

The operation of fixing the shock absorbing rib body 21 to the outer frame 11 is as follows.
The shock absorbing rib body 21 is pressed toward the inner surface a of the outer frame 11 so that the mounting seat portion 12 on the inner surface of the outer frame 11 fits in the inner frame a. The temporary fixing groove 29 of the shock absorbing rib 21
And the temporary fixing claws 17 of the mounting seat portion 12 of the outer frame 11 are engaged with each other to temporarily fix the shock absorbing rib body 21 to the inner surface 11a of the outer frame 11. At this time, the engagement between the temporary fixing groove 27 and the temporary fixing claw 17 is made at a substantially intermediate position between the vertical ribs 22 in the predetermined lattice portion 25a. The rib 22 is easily bent, and the engagement, that is, the temporary fixing can be easily performed. By this temporary fixing, the welding projection 19 of the frame 11 is inserted into the insertion hole 29 of the bottom plate 28 of the shock absorbing rib 21.

Next, in the temporarily fixed state, a heating rod or the like is pressed against the head of the welding projection 19 protruding from the insertion hole 29 of the bottom plate 28 of the shock absorbing rib body 21, and the welding projection 19 is pressed. Is melted and crushed, and is welded to the periphery of the insertion hole 29 of the shock absorbing rib 21. The term "welding" is used not only when the welding projection 19 is melted and bonded around the insertion hole 29, but also when the head of the welding projection 19 is softened and crushed and expanded. Is fixed to the periphery of the insertion hole 29.

In this embodiment, the shock absorbing ribs 21 are provided on a part of the inner surface of the outer shell 11.
It may be provided on substantially the entire inner surface. Further, the temporary fixing groove may be provided on the pillar garnish mounting seat portion 12 of the outer shell 11, and the temporary fixing claw may be provided on the vertical rib 22 of the shock absorbing rib body 21.

[0025]

As shown and described above, according to the pillar garnish of the automobile of the present invention, the outer surface of the pillar garnish mounting seat portion and the substantially middle portion of the vertical rib in the predetermined lattice portion of the shock absorbing rib body are provided. Since the temporary fixing claw and the temporary fixing groove to be engaged with each other are formed, it is easy to assemble and integrate the shock absorbing rib body and the outer shell, and the structure of the injection molding die of the outer shell is simple, inexpensive and inexpensive. There is an effect that it can be easily formed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the back side of a pillar garnish according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing a part thereof.

FIG. 3 is an exploded perspective view of the embodiment.

FIG. 4 is a sectional view of the slide mold at a position 4-4 in FIG. 3;

FIG. 5 is a perspective view schematically showing the inside of an automobile.

FIG. 6 is a perspective view showing the back side of an example of a conventional pillar garnish.

FIG. 7 is an enlarged perspective view showing a part thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Pillar garnish 11 Outer shell 12 Pillar garnish mounting seat part 17 Temporary fixing claw 19 Welding projection 21 Shock absorbing rib body 22 Vertical rib 24 Horizontal rib 27 Temporary fixing groove 25a Lattice part 29 Welding projection insertion hole

Claims (1)

[Claims] 1. An elongated outer shell constituting an outer surface of a pillar garnish, and a lattice-shaped shock absorbing rib body temporarily fixed to the inner surface of the outer shell and permanently fixed in the outer shell by welding or the like. In a pillar garnish for an automobile, a pillar garnish mounting seat portion that fits within a lattice portion of the shock absorbing rib body is provided upright on an inner surface of the outer shell, and an outer surface of the pillar garnish mounting seat portion and the shock absorbing rib body are provided. A pillar garnish for an automobile, wherein a temporary fixing claw and a temporary fixing groove are formed to engage with each other at a substantially middle portion of a vertical rib in a predetermined lattice portion.