JPH06286530A - Pillar garnish - Google Patents

Abstract

PURPOSE:To provide a pillar garnish for automobile, which has excellent recycling property, noise shielding property and insulation property, and which can be manufactured at low cost. CONSTITUTION:A pillar garnish 1 made of synthetic resin, to be fitted in the interior of an automobile, has a hollow part 10 formed into face shape. The hollow part 10 is formed in a protruded part 12 protruded to the outside C. There are a plurality of mounting seats 13 on the outside C. The mounting seat 13 is preferably integrated into the hollow part 10 and formed at the same time when the hollow part 10 is formed. The protruded part 12 can be spared in the hollowing part 10.

Description

Detailed Description of the Invention

[0001]

The present invention has excellent recyclability,
A pillar garnish for automobiles that is inexpensive, excellent in sound insulation and heat insulation.

[0002]

2. Description of the Related Art As shown in FIGS. 4 and 5, a pillar garnish 9 includes a main body 90 and a sound absorbing member 9 attached to the back side thereof.
1 and a mounting seat 92. The pillar garnish 9 is attached to the rear side of the automobile 8 on the indoor D side of the pillar 81 near the so-called quarter window or the like.
Mounted via. Further, the molding 7 is provided on the outer side C of the pillar garnish 9 through the pillar 81.
Is installed.

The pillar garnish 9 generally has a main function of sound insulation and sound absorption, as well as a role of protecting an occupant, improving the interior design and improving the feel. As shown in FIG. 4, conventionally, as the pillar garnish 9, there is one in which a sound absorbing member 91 is attached to the central portion of the back surface of a synthetic resin main body 90 via an adhesive. As the sound absorbing member 91, for example, re-formed cotton felt is used.

[0004]

However, the above-mentioned conventional technique has the following problems. That is, as shown in FIG. 4, the pillar garnish 9 is a plate-shaped main body 90 made of synthetic resin.
The sound absorbing member 91 made of another material is attached to the. Therefore, the cost increases due to the work of adhering these two members and the cost of the materials used therefor.

The sound absorbing member 91 is a re-formed cotton felt and is made of a material different from that of the main body 90. for that reason,
The entire pillar garnish cannot be recycled as it is, and it is necessary to separate the two again for recycling. Therefore, the conventional pillar garnish is inferior in recyclability. The present invention has been made in view of such conventional problems, is excellent in recyclability, is inexpensive,
It aims to provide pillar garnish with excellent sound insulation and heat insulation.

[0006]

SUMMARY OF THE INVENTION The present invention is a pillar garnish made of synthetic resin to be mounted in the interior of an automobile, wherein the pillar garnish has a planar hollow portion. .

The hollow portion is internally formed inside the pillar garnish. The surface of the hollow part, that is, the space part having a constant length, width and height is formed. Among these, it is preferable that the height of the hollow portion is 3 to 15 mm. If it is less than 3 mm, sound insulation and heat insulation are insufficient. On the other hand, if it exceeds 15 mm, the thickness of the pillar garnish becomes too large, and the vehicle interior space becomes narrow.

Further, as shown in the embodiment, the hollow portion may be provided in the pillar garnish with a protruding portion and provided in the protruding portion. This makes it easy to form the hollow portion. The pillar garnish preferably has a mounting seat for mounting and fixing to the vehicle body panel.
Further, it is preferable that the mounting seat is integrally formed with the main body of the pillar garnish. This makes the pillar garnish easier and cheaper to manufacture.

The pillar garnish is, for example, acrylonitrile-butadiene-styrene (ABS) resin, polypropylene (PP) resin, polycarbonate (PC).
Molding is performed using synthetic resin such as resin, acrylonitrile, ethylene, propylene, diene rubber, styrene (AES) resin.

The hollow portion is formed by injecting a pressurized fluid such as a gas such as nitrogen gas or a liquid such as water into the injected molten resin in molding the pillar garnish. In this molding, for example, a core back molding method is used as shown in the embodiment. Here, the core back molding method is a method of forming the hollow portion while moving a core as a core for forming the hollow portion rearward in the injection hollow molding method, for example.

[0011]

FUNCTION AND EFFECT The pillar garnish of the present invention has a hollow portion formed in a planar shape. Therefore, it has excellent sound insulation and heat insulation. Also, because it is a single material, the material cost can be reduced and the cost is reduced. Further, the above pillar garnish uses a synthetic resin instead of the bonding material of the main body and another material such as re-formed cotton felt as in the conventional pillar garnish.

Therefore, at the time of recycling, the pillar garnish can be melted as it is, molded again into another synthetic resin molded article, and reused. Therefore, it has excellent recyclability. Therefore, according to the present invention, it is possible to provide a pillar garnish that is excellent in recyclability, is inexpensive, and is excellent in sound insulation and heat insulation.

[0013]

EXAMPLE A pillar garnish according to an example of the present invention will be described with reference to FIGS. As shown in FIGS. 1 to 3, the pillar garnish 1 of this example has a hollow portion 10 formed in a planar shape, and is molded of synthetic resin. The hollow portion 10 is formed in a protruding portion 12 that protrudes in a thin plate shape on the outer side C opposite to the interior side D of the automobile. The hollow portion 10 is formed in a planar shape along the thin plate shape. The pillar garnish 1 includes a main body 11, a protrusion 12, and a mounting seat 13.

That is, the pillar garnish 1 has a plurality of mounting seats 13 on the outer side C for mounting and fixing to the vehicle body panel. The mounting seat 13 has a mounting hole 130 into which a mounting tool (not shown) such as a clip is inserted.

The pillar garnish 1 is formed by a core back molding method using polypropylene resin (PP). Here, the core-back molding method refers to the above-mentioned hollow portion 10 in the injection hollow molding method, in which the core as a core for forming the hollow portion is moved backward (back).
Is a method of forming.

The hollow portion 10 is formed by injection molding.
It is formed by injecting nitrogen gas or the like as a pressurized fluid into the resin forming the protrusion 12. As shown in FIGS. 2 and 3, the hollow portion 10 has a height 101 slightly smaller than the height (thickness) of the protruding portion 12. The height 101 is about 8 to 10 mm. The width of the hollow portion 10 is about 120 mm and the length is about 200 mm.

Next, the function and effect of this embodiment will be described. The pillar garnish 1 of this example has a hollow portion 10 formed in a planar shape as shown in FIGS. for that reason,
Excellent sound insulation and heat insulation. Also, because it is a single material, the material cost can be reduced and the cost is low.

Further, the pillar garnish uses a single-material PP resin instead of using a binder of the main body and another material such as re-formed cotton felt as in the conventional pillar garnish. Therefore, when recycling,
The pillar garnish can be melted as it is, molded again into another synthetic resin molded product, and reused. Therefore, it has excellent recyclability.

Further, since the PP resin is used, the heat insulation property, rigidity and impact absorption resistance of the pillar garnish 1 are improved. Further, since the hollow portion 10 is formed in the protruding portion 12 of the pillar garnish 1, the section modulus increases. Therefore, the entire pillar garnish 1 is excellent in rigidity and shock absorption resistance and is lightweight. In addition, the pillar garnish 1 has a plurality of mounting seats 13 and
2. The hollow portion 10 and the hollow portion 10 are integrally molded at the same time. Therefore, the pillar garnish 1 is inexpensive.

[Brief description of drawings]

FIG. 1 is a perspective view of a pillar garnish according to an embodiment.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along the line BB of FIG.

FIG. 4 is a development view of a conventional pillar garnish.

FIG. 5 is an explanatory view showing a state in which a pillar garnish is attached to an automobile.

[Explanation of symbols]

 1. ． ． Pillar garnish, 10. ． ． Hollow part, 11. ． ． Main body, 12. ． ． Protruding part, 13. ． ． Mounting seat,

Claims (1)

[Claims] 1. A pillar garnish made of a synthetic resin to be mounted in a vehicle interior, wherein the pillar garnish has a hollow portion formed in a planar shape.