JP2007331637A - Interior component for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce rattle sound caused by an interference of an impact absorbor with a door trim body. <P>SOLUTION: An impact absorbor 4 is mounted to have a predetermined gap t from an impact area in a door trim body 1 attached to a door panel where a shoulder or waist of an occupant easily touches upon side impact. A vibration absorbing portion 5 for absorbing vibration of the impact absorbor 4 caused during a travel of an automobile by contacting the door trim body 1 is formed in the impact absorbor 4. By configuring the vibration absorbing portion 5 in an elastically deformable curved shape, even if the vibration occurrs in the door trim body 1 during the travel of the automobile or the use of an audio device, the rattle sound caused by the interference of the impact absorbor 4 to the door trim body 1 is reduced by the vibration absorbing portion 5 absorbing the vibration, elastically bending. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to automobile interior parts such as door trims and rear side trims that are mounted on a side wall panel of an automobile, and more particularly to an automotive interior part that includes an impact absorber that absorbs the impact of an occupant due to a side collision.

  Normally, various interior parts for automobiles are mounted in the vehicle interior, and typical examples of the interior parts include door trims mounted on side wall panels constituting the doors of automobiles. In order to absorb the impact of the occupant, an impact absorber is disposed in an impact area where the shoulder or waist of the occupant can easily touch during a side collision.

As this type of conventional door trim, one shown in FIGS. 6 and 7 is known (see Patent Document 1).
Japanese Patent Application Laid-Open No. 2004-338627.

  According to FIGS. 6 and 7, the door trim has a door trim main body a formed by sticking a skin on the surface side of the resin core material. A shock absorber d made of a resin material such as polypropylene is mounted in an impact area that has a pocket portion c for storing the vehicle and that is easily touched by the shoulder or waist of the occupant during a side collision on the back side of the door trim main body a. Equally configured.

  As shown in FIG. 7, the shock absorber d is formed by a substantially box-shaped hollow body having an opening on one side, and the mounting piece f formed integrally with the opening e side being the door trim main body a side. It is mounted on the door trim main body a.

  The shock absorber d is slightly slightly against the back side of the door trim main body a so as not to generate vibration noise due to vibration of the door trim main body a during driving of the automobile or use of the audio device. Is provided so as not to transmit vibration from the door trim main body a.

  For this reason, the shock absorber d is mounted with a gap with respect to the door trim main body, and is constituted by a thin hollow body, so that it is likely to vibrate when subjected to vibration from the outside. Even if it vibrates, once it vibrates, it may interfere with other mounting parts mounted on the back side of the door trim main body a, and may generate a hitting sound.

  Therefore, as shown in FIG. 7, by forming the bead-shaped protrusion g integrally on the opening e side of the shock absorber d and bringing the protrusion g into contact with the back surface of the door trim main body a with strong interference, Partly abutting against the door trim body a to suppress vibrations and prevent interference with other mounting parts.

  However, since the projection g is brought into contact with the door trim main body a by strong interference and the shock absorber d is partially brought into contact with the door trim main body a, vibration during driving of the automobile or use of the audio device is caused. When the door trim main body a vibrates by this, this vibration is transmitted to the shock absorber d through the projection g, and the shock absorber d may vibrate. The absorber d may interfere with the door trim main body a, and a rattling sound may occur.

  Then, in view of this point, the present invention has an object to provide an automobile interior part configured to suppress the generation of rattling noise caused by interference with a door trim body in an impact absorber.

  In order to solve such a problem, an interior part for an automobile according to the present invention has a predetermined gap between an impact absorber and an impact area that is easily touched by an occupant at the time of a side collision in an interior part body mounted on a side wall of an automobile. And an automobile interior part in which a vibration absorbing part that absorbs the vibration of the shock absorber that is generated when the automobile is running is brought into contact with the interior of the interior part body. And the said vibration absorption part was comprised in the bending shape which can be elastically deformed, It is characterized by the above-mentioned.

  According to the present invention configured as described above, even if the shock absorber is attached to the interior part main body so as to have a predetermined gap, the vibration absorbing portion formed on the shock absorber can be elastically deformed. Since it has a bent shape and abuts against the interior component main body, even if vibration occurs in the interior component main body while the vehicle is running or the audio device is being used, the vibration absorbing portion is elastically deformed while the vibration absorbing portion is elastically deformed. Absorbing by bending, it is possible to suppress the generation of rattling noise due to the contact between the interior component main body and the shock absorber.

  The best mode for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a door trim, which is an automotive interior part employing the present invention, drawn from the back side, FIG. 2 is a perspective view of an impact absorber mounted on the door trim of FIG. 1, and FIG. FIG.

  First, in FIG. 1, a door trim that is an interior part for an automobile is an armrest portion for a door trim body 1 configured by sticking a skin on the surface side of a resin core material to bulge on the surface side and hang an elbow etc. 2 and a pocket portion 3 for storing small items, and an impact absorber 4 made of a resin material such as polypropylene in an impact area on the back side of the door trim main body 1 that is easily touched by the shoulder or waist of the occupant. Although not shown, a door glass raising / lowering mechanism, a door lock mechanism, and the like are attached to the door panel (not shown) that is a side wall of the automobile.

  As shown in FIGS. 2 and 3, the shock absorber 4 is configured by a box-shaped hollow body having a substantially truncated pyramid shape that is gradually tapered from the opening 4 a side on the one surface side.

  A pair of attachment pieces 4b are integrally formed on the left and right sides of the end surface of the opening 4a of the shock absorber 4 so as to protrude outward with a step.

  Therefore, the shock absorber 4 is attached by using the mounting bosses or the like provided on the door trim main body 1 side, although not shown, with both the mounting pieces 4b facing the opening 4a on the back side of the door trim main body 1. The door trim body 1 is attached to the back side.

  At this time, since the mounting piece 4b is formed in a state where the end face of the opening 4a protrudes with a step, as shown in FIG. 3, the shock absorber 4 includes the end face of the opening 4a and the door trim main body. It is mounted with a predetermined gap t between the back surface of the first member and the rear surface of the first member.

  Further, a vibration absorbing portion 5 extending upward is integrally formed on the upper end surface of the opening 4 a of the shock absorber 4.

  The vibration absorbing portion 5 is configured to have a flexible shape that can be elastically deformed, for example, a thin-walled tongue piece shape, so as to elastically contact the back side of the door trim body 1 when the shock absorber 4 is attached to the door trim body 1. is doing.

  When configured as described above, even if the shock absorber 4 is mounted on the back surface of the door trim body 1 so as to have a predetermined gap t, the vibration absorbing portion 5 formed on the shock absorber 4 is elastically deformed. Since it has a possible bending shape and elastically contacts the door trim body 1, even if vibration occurs in the door trim body 1 while the vehicle is running or the audio device is being used, the vibration is absorbed by the vibration absorbing portion. 5 is absorbed by being bent while being elastically deformed, and it is possible to suppress the generation of rattling noise due to the contact between the door trim main body 1 and the shock absorber 4.

  Next, another preferred embodiment according to the present invention will be described with reference to FIGS.

  First, in FIG. 4, the vibration absorbing portion 5 that extends upward is integrally formed on the upper end surface of the opening 4 a of the shock absorber 4, but the vibration absorbing portion 5 is the same as the above embodiment. Both of the base end portions of the shock absorber 4 extend to the upper wall 4c of the shock absorber 4 by carving a notch 4d so as to extend from the end face side of the opening 4a of the shock absorber 5 to the upper wall 4c side. .

  With this configuration, in the embodiment shown in FIG. 4, the vibration absorber 5 is more easily elastically deformed than the shock absorber 4, and efficiently absorbs high-frequency vibration received from the door trim body 1. be able to.

  Further, in still another best embodiment shown in FIG. 5, a notch 4e is formed so as to extend from the end face of the opening 4a of the shock absorber 5 to the upper wall 4c side, The vibration absorber 5 formed on the end surface of the opening 4a has a thickness substantially corresponding to the plate thickness of the shock absorber 4, but is elastic when the free end bends in a convex curve outward. It is configured in a deformable bending shape.

  With such a configuration, when vibration is generated in the door trim main body 1 while the vehicle is running or the audio device is being used, and the vibration absorbing portion 5 absorbs it by bending while being elastically deformed, the vibration absorber 5 is notched. Suppressing the generation of rattling noise caused by the door trim body 1 and the shock absorber 4 coming into contact with each other by efficiently absorbing the vibration by bending while elastically deforming so as to enter the portion 4e side. it can.

  As described above, the present invention is a flexible shape in which the vibration absorbing portion formed on the shock absorber can be elastically deformed even when the shock absorber is mounted on the interior component body so as to have a predetermined gap. Therefore, even if vibration occurs in the interior component main body while the vehicle is running or the audio device is used, the vibration absorbing portion flexes while elastically deforming the vibration. For automobiles mounted on the side panels of automobiles such as door trims and rear side trims. The present invention relates to interior parts, and is particularly suitable for interior parts for automobiles equipped with an impact absorber that absorbs the impact of a passenger due to a side collision.

It is the perspective view which drawn the door trim which is an interior component for motor vehicles which employ | adopted this invention from the back surface side. It is a perspective view of the shock absorber with which the door trim of FIG. 1 is mounted. It is a longitudinal cross-sectional view of an impact absorber similarly. It is a perspective view of the shock absorber by other embodiment which concerns on this invention. It is a perspective view of the shock absorber by further another embodiment which concerns on this invention. It is the perspective view which drawn the door trim in the past from the back side. It is a perspective view of the shock absorber in FIG.

Explanation of symbols

1 Door trim body (interior parts)
4 Shock absorber 5 Vibration absorber

Claims (1)

A shock absorber is mounted with a predetermined gap in an impact area that is easily touched by an occupant at the time of a side collision in an interior component body mounted on a side wall of an automobile, and the shock absorber is applied to the interior component body. An automotive interior part in which a vibration absorbing part that absorbs the vibration of the shock absorber that occurs when the automobile is running by being in contact with each other is formed, and the vibration absorbing part is configured in a flexible shape that can be elastically deformed. Automotive interior parts characterized by this.

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