JP2008149760A - Vehicle interior part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To construct an interior part such as a door trim to be surely crushed and deformed by a collision of an occupant at the time of a vehicle side collision so that an occupant crash protection function can be carried out reliably. <P>SOLUTION: By using a mounting boss 7 erected on an upper trim, which is one member, the upper trim 3 is attached to a lower trim 4, which is the other member, and a reinforcement rib 9 protruded integrally from the upper trim 3 is additionally provided in the peripheral part of the mounting boss 7 for reinforcing the mounting boss 7. Moreover, a border section to the mounting boss 7 in the reinforcement rib 9 is formed in a thin part 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicular interior part for beautifying the passenger compartment side of a vehicle body.

  This type of interior part, for example, the door trim 1 shown in FIG. 1, has an interior of the vehicle body side of the door body 2 that is the vehicle body side, and may be formed of an integrally molded product made of a resin material. The upper trim 3 and the lower trim 4 that are separately formed are connected to each other for reasons of design and design, etc., and are in the vicinity of the boundary between the upper trim 3 and the lower trim 4. The member 5 is stretched and the armrest 6 is bulged on the lower trim 5 side.

  For example, as shown in FIGS. 12 and 13, the upper trim 4 and the lower trim 5 configured as described above are connected to each other by mounting the mounting boss 7 on the back surface side of the upper trim 3 and mounting holes on the lower trim side. 8 is formed, the mounting boss 7 is inserted into the mounting hole 8, and the tip of the mounting boss 7 protruding toward the lower trim 4 is crimped and welded.

Further, for example, a reinforcing rib 9 having a cross shape in a top view is attached to the outer peripheral portion of the mounting boss 7, and the reinforcing rib 9 is integrally planted on the lower trim 4 side, whereby the reinforcing structure of the mounting boss 7 is obtained. (See Patent Document 1 and Patent Document 2).
JP 11-189103 A JP 2002-36878 A

  By the way, in an automobile door equipped with a door trim configured as described above, in order to protect an occupant at the time of a side collision of a vehicle (hereinafter simply referred to as a side collision), it is usually not shown on the back side of the door trim 1. When the door trim 1 is crushed by the collision of the occupant, the shock absorption pad is elastically deformed to absorb the occupant's impact.

  However, for example, when the upper trim 3 receives a force on the lower trim side due to the collision of the occupant at the side collision, the upper trim 3 slides with respect to the mounting boss 7 via the mounting hole 8 in the direction of the lower trim 4. Although it tries to slide and crush, when the reinforcing rib 9 abuts against the upper trim 3 and stretches, the sliding movement of the upper trim 3 is prevented and the crushing deformation of the door trim 1 itself may be suppressed. .

  Therefore, in view of the above, the present invention is an interior for a vehicle in which interior parts such as a door trim are reliably crushed and deformed by a collision of an occupant at the time of a side collision of the vehicle, and the occupant protection function is reliably achieved. The purpose is to provide parts.

  In order to achieve the above object, an interior part for a vehicle according to the present invention uses an attachment boss provided upright on one member to attach the one member to the other member, and at the outer periphery of the attachment boss. An interior part for a vehicle configured by adding a reinforcing rib integrally projecting from the one member for reinforcing the mounting boss, wherein a boundary portion of the reinforcing rib with the mounting boss is a thin portion. It is formed.

  With this configuration, the present invention can provide the reinforcing rib when, for example, one member receives a force in the direction of the other member when the impact of the occupant is applied to the interior part during a side collision of the vehicle. Although it tries to stretch against the reaction force received from the other member, since the thin wall portion is formed at the boundary between the mounting boss and the reinforcing rib, the reinforcing rib borders the thin wall with respect to the mounting boss. It spreads and breaks, and one member can be slid in the direction of the other member to promote crushing deformation of the interior part itself, and the shock absorbing function by the shock absorbing pad etc. is surely performed. .

  In order to achieve the above object, an interior part for a vehicle according to the present invention uses an attachment boss provided upright on one member to attach the one member to the other member, and the outer periphery of the attachment boss. A vehicle interior part comprising a reinforcing rib integrally projecting from the one member for reinforcing the mounting boss, and a boundary between the front end of the reinforcing rib and the mounting boss A cut portion is formed in the portion.

  With this configuration, the present invention can provide the reinforcing rib when, for example, one member receives a force in the direction of the other member when the impact of the occupant is applied to the interior part during a side collision of the vehicle. It tries to stretch against the reaction force received from the other member, but because the notch was formed at the boundary with the mounting boss at the tip of the reinforcing rib, this notch triggered the trigger against the mounting boss. As a result, the reinforcing rib peels and spreads, making it easy to break, allowing one member to slide in the direction of the other member, promoting crushing deformation of the interior part itself, and ensuring the shock absorbing function by the shock absorbing pad etc. It will let you.

  Furthermore, in order to achieve the above object, an interior part for a vehicle according to the present invention uses a mounting boss standing on one member to mount the one member on the other member and An interior part for a vehicle comprising a reinforcing rib integrally projecting from the one member to reinforce the mounting boss, and a thin boundary portion between the reinforcing rib and the mounting boss And a cut portion is formed at a boundary portion between the front end portion of the reinforcing rib and the mounting boss.

  With such a configuration, when an impact of a passenger is applied to the interior part in a side collision of the vehicle, for example, when one member receives a force in the direction of the other member, the reinforcing rib is removed from the other member. Although it tries to stretch against the received reaction force, it forms a thin portion at the boundary between the mounting boss and the reinforcing rib, and a notch is formed at the boundary with the mounting boss at the tip of the reinforcing rib. The ribs are triggered by the notches, and are easy to break by peeling and expanding from the mounting boss at the thin wall, making one member slidable in the direction of the other member, and crushing the interior parts themselves The deformation is promoted, and the shock absorbing function by the shock absorbing pad or the like is surely performed.

  The present invention configured as described above is used to reinforce, for example, when one member receives a force in the direction of the other member when the impact of the occupant is applied to the interior part in a side collision of the vehicle. The rib tries to stretch against the reaction force received from the other member, but a thin wall is formed at the boundary between the mounting boss and the reinforcing rib, or a cut is made at the boundary between the reinforcing rib and the mounting boss. Since the reinforcing rib is formed, the reinforcing rib peels and expands with respect to the mounting boss, breaks, makes one member slidable in the direction of the other member, promotes crushing deformation of the interior part itself, and shock absorbing pad The shock absorbing function due to the above will surely be fulfilled.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments in the best mode for carrying out the present invention will be described with reference to the drawings by assigning the same reference numerals to portions corresponding to the prior art.

(Example 1)
First, a door trim of an automobile which is an interior part for a vehicle will be described with reference to FIG.

  FIG. 1 is a perspective view of the door trim drawn from the passenger compartment side.

  According to FIG. 1, the door trim 1 includes a vehicle interior side of the door body 2 that is the vehicle body side, and an upper trim 3 as one member and a lower trim 4 as the other member, which are molded separately from each other. Are connected to each other.

  In the vicinity of the boundary between the upper trim 3 and the lower trim 4, the intermediate member 5 is stretched and the armrest 6 is bulged on the lower trim 5 side.

  As shown in FIGS. 2 to 4, for example, the upper trim 4 and the lower trim 5 that are configured in this manner are connected to each other by mounting a mounting boss 7 on the back side of the upper trim 3 and mounting holes on the lower trim side. 8 is formed, the mounting boss 7 is inserted into the mounting hole 8, and the tip of the mounting boss 7 protruding toward the lower trim 4 is crimped and welded.

  Further, for example, a reinforcing rib 9 having a cross shape in a top view is attached to the outer peripheral portion of the mounting boss 7, and the reinforcing rib 9 is integrally planted on the lower trim 4 side, whereby the reinforcing structure of the mounting boss 7 is obtained. Adopted.

  Furthermore, the boundary between the mounting boss 7 and the reinforcing rib 9 is formed in the thin portion 10.

  In the case of such a configuration, when the impact of the occupant is applied to the door trim 1 at the time of a side collision of the automobile, for example, when the upper trim 3 receives a force in the direction of the lower trim 4, the reinforcing rib 9 is moved to the lower trim. 4, the thin rib 10 is formed at the boundary between the mounting boss 7 and the reinforcing rib 9, as shown in FIG. The mounting boss 7 is peeled, spread and broken at the thin wall portion 10 as a boundary, and the upper trim 3 can be slid in the direction of the lower trim 4 to facilitate the crushing deformation of the door trim 1 itself. The shock absorbing function will surely be fulfilled.

  Therefore, as shown in Fig. 6, if the reaction force F generated in the lower trim 4 is taken as the upper trim 3 slides on the vertical axis and the sliding amount S of the upper trim 3 is taken on the horizontal axis, it is indicated by a broken line. Compared with the conventional door trim, in the door trim 1 in the present embodiment shown by a solid line, the reaction force generated in the lower trim 4 can be considerably reduced, and this surely fulfills the shock absorbing function by the shock absorbing pad or the like. You can see that

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

(Example 2)
First, the second embodiment shown in FIG. 7 will be described. In contrast to the first embodiment, the front end side of the reinforcing rib 9 is a cut portion 9a formed in a tip-opening shape at a portion facing the mounting boss 7. However, the other configurations are the same.

  According to the second embodiment configured as described above, when an impact of an occupant is applied to the door trim 1 at the time of a side collision of the automobile, for example, when the upper trim 3 receives a force in the lower trim 4 direction, Although the reinforcing rib 9 tries to stretch against the reaction force received from the lower trim 4, as shown in FIG. 5, the thin portion 10 is formed at the boundary between the mounting boss 7 and the reinforcing rib 9. As shown in FIG. 8, the reinforcing rib 9 is triggered by the notch 9 a, and is peeled and spread around the thin boss 10 with respect to the mounting boss 7 to be easily broken. The upper trim 3 is moved in the lower trim 4 direction. The sliding movement is made possible, the crushing deformation of the door trim 1 itself is promoted, and the shock absorbing function by an unillustrated shock absorbing pad or the like is surely performed.

(Example 3)
Further, the third embodiment shown in FIG. 9 and FIG. 10 will be described. Compared to the second embodiment, the concave curved portion 4a is formed by bending the facing portion of the reinforcing rib 9 in the lower trim 4 into a concave curve. As shown in FIG. 11, the function of further separating and expanding the reinforcing rib 9 with respect to the mounting boss 7 at the time of a side collision of the automobile is further promoted.

  In the above embodiment, the present invention is described only when the present invention is applied to an automobile door trim. However, the present invention is not limited to this, and in an automobile, for example, a rear side trim, a luggage side trim, and a roof trim. It is clear that the present invention can be applied to interior parts such as automobiles and general interior parts of vehicles.

  As described above, the present invention provides a reinforcement when, for example, a side impact of an occupant is applied to an interior part, for example, when one member receives a force in the direction of the other member. The rib tries to stretch against the reaction force received from the other member, but a thin wall is formed at the boundary between the mounting boss and the reinforcing rib, or a cut is made at the boundary between the reinforcing rib and the mounting boss. Since the reinforcing rib is formed, the reinforcing rib peels and expands with respect to the mounting boss, breaks, makes one member slidable in the direction of the other member, promotes crushing deformation of the interior part itself, and shock absorbing pad Therefore, it is suitable for interior parts for vehicles that beautify the vehicle compartment side of a vehicle body such as a door trim.

It is the perspective view which drawn the door trim of the motor vehicle which is a vehicle interior component from the compartment side. It is AA sectional drawing of FIG. 1 in Example 1 of this invention. FIG. 3 is a cross-sectional view illustrating an enlarged main part in FIG. 2. FIG. 3 is a plan view of a main part on a back surface side of an upper trim in FIG. 2. It is sectional drawing which expanded and showed the principal part in FIG. 2 which shows the operation state at the time of the side collision of a motor vehicle. It is the diagram which drawn the deformation | transformation process of the reinforcement rib for demonstrating the effect | action in Example 1 in this invention. It is principal part sectional drawing similar to FIG. 3 which drawn Example 2 concerning this invention. Similarly, it is principal part sectional drawing similar to FIG. 5 which shows the operation state at the time of the side collision of a motor vehicle. It is principal part sectional drawing similar to FIG. 3 which drawn Example 3 concerning this invention. Similarly, it is a principal part top view in the back surface side of the upper trim in FIG. Similarly, it is principal part sectional drawing similar to FIG. 5 which shows the operation state at the time of the side collision of a motor vehicle. It is principal part sectional drawing similar to FIG. 3 in the door trim of a prior art. Similarly, it is a principal part top view in the back surface side of the upper trim in FIG.

Explanation of symbols

1 Door trim (interior parts)
3 Upper trim (one member)
4 Lower trim (other member)
7 Mounting boss 8 Mounting hole 9 Auxiliary rib 10 Thin part

Claims (3)

  Using the mounting boss standing on one member, the one member is mounted on the other member, and the outer periphery of the mounting boss projects integrally from the one member to reinforce the mounting boss. An interior part for a vehicle configured by adding a reinforcing rib, wherein a boundary part between the reinforcing rib and the mounting boss is formed in a thin part.   Using the mounting boss standing on one member, the one member is mounted on the other member, and the outer periphery of the mounting boss projects integrally from the one member to reinforce the mounting boss. An interior part for a vehicle configured by adding a reinforcing rib, wherein a cut portion is formed at a boundary portion between the front end portion of the reinforcing rib and the mounting boss. Using the mounting boss standing on one member, the one member is mounted on the other member, and the outer periphery of the mounting boss projects integrally from the one member to reinforce the mounting boss. An interior part for a vehicle configured by adding a reinforcing rib, wherein a boundary portion between the reinforcing rib and the mounting boss is formed in a thin portion, and a boundary with the mounting boss at a tip portion of the reinforcing rib An interior part for a vehicle, wherein a cut portion is formed in the portion.

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