JP3280846B2 - Automotive front pillar garnish - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front pillar garnish for automobiles, and more particularly to a front pillar garnish for automobiles that covers pillars, side roof rails, and the like.

[0002]

2. Description of the Related Art In general, interior parts called pillar garnishes are mounted on the vehicle interior side of a vehicle body in order to hide a gap between a ceiling and a door and between a front window and a side door glass. This interior part is used mainly as a decorative part for concealing the gap, mainly for the decoration of the upper part of the passenger compartment.

[0005] FIG. 5 shows an example of the interior part 1. In this example, a pillar garnish covering the front pillar 3 formed between the front window 2 and the side door glass is shown. The front pillar 3 is formed by joining the inner panel 4 and the outer panel 5 with their flange portions together by spot joining such as spot welding. The interior component 1 is formed of a thermoplastic resin such as an ABS resin or a PP resin, and includes a main body 6 and a mounting portion 7 provided on a back surface thereof.

[0004] The main body 6 is formed in a shape covering the front pillar 3, and is covered or covered with a synthetic resin sheet material or a fabric material with a flocked surface as necessary as a skin material (not shown). It can be attached to enhance the design effect. The mounting part 7 is a back member 4a of the hat-shaped inner panel 4 of the front pillar 3 which is a clip member.
The interior material 1 is attached to a predetermined position by being pushed into and engaged with the groove or hole 8 provided at the interior material attachment position. The side of the end of the interior material 1 that is visible to the occupant is covered with a welt 9 for the purpose of concealing the gap between the interior material 1 and the front pillar 3 and the weld between the inner panel 4 and the outer panel 5. I have.

[0005]

However, in the conventional automobile interior parts, when the occupant gets on and off the vehicle, the head or hand of the occupant interferes with the pillar garnish, so that the garnish is displaced and comes off. The garnish may be dented, and the function of the decoration, which is the original purpose of the pillar garnish, may be lost.

Accordingly, an object of the present invention is to provide a garnish having sufficient strength and rigidity so that even if the occupant's head or hand interferes with the pillar garnish when the occupant gets on or off the garnish, the garnish does not come off and the garnish is not dented. It is an object of the present invention to provide a front pillar garnish for automobiles having:

[0007]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventors have found that the shape of the pillar garnish viewed from the longitudinal direction is substantially formed on the side surface of the back surface of the resinous pillar garnish on the side window side. The inventors have found that providing the triangular ribs in the direction of the cross section of the pillar garnish can solve the above problem, and have reached the present invention.

[0008] The object of the present invention is to provide a thickness (t) on the side of the side window side of the interior material mounting groove or hole 8 provided substantially at the center of the inner panel back 4a on the back surface of the resinous front pillar garnish. ) Is 0.8 ~
An inner panel, which is in a range of 1.5 mm and extends from the groove or hole for mounting the interior material of the inner panel back 4a to the side window side and the vertical wall 4b of the inner panel on the side window side when viewed from the longitudinal direction of the pillar garnish; The present invention has been attained by a front pillar garnish for automobiles, wherein a rib is provided in a portion surrounded by the back surface of the pillar garnish in a cross-sectional direction of the pillar garnish.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Conventionally, in order to suppress backlash such as pillar garnish and to give a sense of rigidity, FIG.
The contact rib 10 as shown in FIG. However, such a contact rib is not assumed to have sufficient strength and rigidity because it is not assumed that the occupant's head or hand will interfere with the pillar garnish when getting on or off. Further, the shape is not a shape that can suppress rattling in the lateral direction of the cross section of the pillar garnish.

In order to suppress the rattling of the pillar garnish, a contact rib 1 shaped to fill the space between the inner panel and the back of the pillar garnish as shown in FIG.
It is easily conceivable to provide 1 on the back surface of the pillar garnish, but such a shape does not necessarily exert a sufficient function depending on the usage environment of the pillar garnish.

In the front pillar garnish, the side surface on the front window side is exposed to direct sunlight, and in such a case, the temperature rises only on one front window side of the front pillar garnish. Similarly, the ribs provided on the back surface on the front window side also rise in temperature, and thus increase in height due to thermal expansion. As a result, the space surrounded by the ribs becomes narrower, and the front pillars rise.

As the mode in which the occupant's hand or head interferes with the pillar garnish when getting on and off, the mode in which the pillar garnish is pressed is the most dominant mode, and the mode in which the pillar garnish is pulled downward is unlikely to occur. Considering this, it is understood that it is necessary and sufficient to raise the rib only on the occupant side opposite to the front window as the rib provided on the back surface of the pillar garnish.

[0013] The force at which a person pushes an object is at most 10
Since it is about 00N, the buckling reaction force of the rib provided on the back surface of the pillar garnish may be more than this.
Specifically, only on the side of the occupant opposite to the front window, the thickness (t) is in the range of 0.8 to 1.5 mm, and the side of the inner panel back 4a is closer to the side window than the interior material mounting groove or hole. And the inner panel extending over the vertical wall 4b of the inner panel on the side window side,
A rib having a shape having an inner panel facing edge formed at least in accordance with the outer shape of the hat on the side window side is provided in a portion surrounded by the pillar garnish back surface.
Provided at an interval (l) of 0 to 60 mm, and the relationship between t and l is t
^The present invention relates to a front pillar garnish for automobiles, wherein ^{3 /} l ≧ 0.017.

[0014]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the invention is limited thereto.

Embodiment 1 FIG. 1 shows Embodiment 1 of the present invention. A rib 12 having a substantially triangular shape, a rib thickness of 0.8 mm, and a rib pitch of 30 mm was produced.

Example 2 A rib was produced in exactly the same manner as in Example 1 except that the rib thickness was 1.0 mm and the rib pitch was 50 mm.

Example 3 A rib was produced in exactly the same manner as in Example 2 except that the rib thickness was 1.5 mm.

Example 4 A rib was produced in exactly the same manner as in Example 3 except that the rib pitch was set to 60 mm.

Embodiment 5 The ribs are formed in exactly the same manner as in Embodiment 2 except that the corners of the rib end portions are recessed in the root direction with respect to the pillar garnish in accordance with the corner shape of the inner pillar. 13
Was prepared. FIG. 2 is a sectional view showing this rib shape.

Comparative Example 1 A rib was produced in exactly the same manner as in Example 1 except that the rib pitch was set to 40 mm.

Comparative Example 2 A rib was produced in exactly the same manner as in Example 2 except that the rib pitch was changed to 60 mm.

Comparative Example 3 A rib was produced in exactly the same manner as in Example 3 except that the rib pitch was 80 mm.

Comparative Example 4 A rib was produced in exactly the same manner as in Example 1 except that the rib thickness was 0.5 mm and the rib pitch was 20 mm.

Comparative Example 5 A rib was produced in exactly the same manner as in Example 2 except that the rib thickness was 2.0 mm.

Conventional Example 1 A contact rib shown in FIG. 6 having a rib thickness of 1.0 mm and a rib pitch of 50 mm was used as Conventional Example 1.

The hitting rib shown in FIG. 7 having a rib thickness of 1.0 mm and a rib pitch of 50 mm was designated as Conventional Example 2.

The ribs having the structures obtained in the above Examples, Comparative Examples and Conventional Examples were injection molded using a conventionally used automobile interior resin material to produce automobile interior parts.

Test Example 1 Regarding the evaluation of the dent, the buckling reaction force (the positional relationship between the rib and the center of the indenter) when the interior material of the present invention was subjected to a static compression test using an indenter having the width of a hand of an adult male (about 100 mm) was used. (The minimum value was used because the force value was changed) was 1000 N or more. If the buckling reaction force is less than 1000 N, there is a problem that the pillar garnish is depressed, or the pillar garnish is disengaged by an occupant input directly acting on the clip of the pillar garnish.

Test Example 2 Regarding the evaluation of surface properties, whether the sink marks generated due to the presence of the ribs on the surface of the molded product are at a level that impairs the merchantability,
Judgment was made visually using the squeezed surface.

Test Example 3 In the sunshine test, the car was arranged so that direct sunlight was incident on the windshield vertically from the front of the car under the sunshine, and the rise of the front pillar garnish after 2 hours was visually judged.

Table 1 shows the results of Test Examples 1 to 3.

[0032]

[Table 1]

As is clear from the results in Table 1, when the rib thickness is in the range of 0.8 to 1.5 mm and the rib pitch is 60 m
m or less, `` When the occupant gets on and off, the head or hand of the occupant interferes with the pillar garnish and the garnish is displaced and comes off, or the garnish is dented. The function of a certain decoration is impaired. "

However, it is difficult to make the rib pitch less than 10 mm in view of the strength of the mold in consideration of production by injection molding. Therefore, the rib pitch is 10 to 6
It is preferable to provide them at intervals of 0 mm.

Further, by using the L-shaped rib as shown in the fifth embodiment, the same firmness and rigidity can be imparted as the effect of the conventional contact rib.

Further, by using the interior material of the structure of the present invention, an effect of absorbing the impact energy in the secondary collision of the occupant generated when the vehicle receives an impact is expected. In Comparative Examples 1 to 5, a dent is generated due to insufficient reaction force.
The above problem cannot be solved because the surface properties are poor.

Also, in the conventional example, when the occupant gets on and off the vehicle, the occupant's head or hand does not have a rib in the input direction due to interference with the pillar garnish, or there is a rib in an unnecessary portion. However, the above problem cannot be solved because the function of the decoration, which is the original purpose of the pillar garnish, may be impaired.

FIGS. 3 and 4 show examples of front pillars having a rib structure according to the present invention (hatched portions in the drawings). Although FIG. 4 shows the front pillar extending to the roof side rail, the rib structure of the present invention is also set at a portion that covers the roof side rail, so that it can be prevented from dropping off due to interference during getting on and off. .

[0039]

According to the present invention, even if the occupant's head or hand interferes with the pillar garnish when the occupant gets on or off the vehicle,
It is possible to provide a front pillar garnish for automobiles having sufficient strength and rigidity in which the garnish does not shift and come off or the garnish is dented.

Further, since the front pillar garnish for a vehicle of the present invention has sufficient strength and rigidity, it can absorb the energy in the secondary collision of the occupant generated when the vehicle receives an impact.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a rib shape according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a rib shape according to another embodiment of the present invention.

FIG. 3 is a diagram showing a state in which a front pillar having a rib of the present invention is mounted on an automobile.

FIG. 4 is a diagram showing a state in which a front pillar having a rib of the present invention is mounted on an automobile.

FIG. 5 is a sectional view showing a conventional general interior part.

FIG. 6 is a cross-sectional view showing a conventional contact rib structure.

FIG. 7 is a sectional view showing a conventional rib structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Interior part 2 Front window 3 Front pillar 4 Inner panel 5 Outer panel 6 Main body 7 Mounting part 8 Hole 9 Welt 10 Abutment rib 11 Abutment rib 12 Rib 13 Rib

Continuing on the front page (72) Inventor Kazuyuki Yamamoto 218 Aoshima-cho, Fuji-shi, Shizuoka Prefecture, Japan Plast Co., Ltd. (72) Inventor Kazushige Onishi 218 Aoshima-cho, Fuji-shi, Shizuoka Prefecture, Japan Plast Corporation (72) Inventor Satoshi Ichikawa 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture Nissan Motor Co., Ltd. (72) Inventor Motomu Komatsu 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Motor Co., Ltd. (72) Inventor Satoshi Yoshikawa, Kanagawa Prefecture 2 Nissan Motor Co., Ltd., Nissan Motor Co., Ltd., Kanagawa-ku, Yokohama-shi (72) Inventor Akira Kawai 2 Nissan Motor Co., Ltd., Takara-cho, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture (56) References JP-A 7-228201 (JP, A (58) Field surveyed (Int.Cl. ⁷ , DB name) B60R 13/02

Claims (3)

(57) [Claims] 1. A side surface on a side window side of a resin front pillar garnish covering a vehicle interior side surface of an inner panel having a hat-side longitudinal cross-section in a transverse direction, having a thickness (t) of 0.8 to 1.5 mm. of the range, as seen from the longitudinal direction of the pillar garnish, the over hat outer peripheral portion of the side window side of the middle portion of the hat top of the in-Na Paneru cross section, of a region surrounded by the inner panel and the pillar garnish rear surface and occupy at least a portion
Both are at least the outer periphery of the hat on the side window side
It has an inner panel facing edge formed according to the shape
That the shape ribs, provided in 10~60mm interval (l), and the front pillar garnish for a motor vehicle, characterized in that the relationship between t and l was t ³ /l≧0.017. 2. The front pillar garnish for automobiles according to claim 1, wherein the rib shape of the front pillar garnish is substantially triangular. 3. The front pillar garnish for an automobile according to claim 1, wherein the edge of the resin front pillar garnish facing the inner panel is formed so as to match the hat shape of the cross section of the inner panel.