JP2011105093A - Interior trim panel for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restrain exposure of an end part (that is, a sharp edge) of a split part of this panel body, even when a split is caused in the panel body. <P>SOLUTION: In this instrument panel 10, a second film 22 brought into close contact with a surface of a panel body 12 and having higher expandability than a first film 20, is arranged between a surface of the panel body 12 and the first film 20. Thus, even when the split 13 is caused in the panel body 12 in a vehicle collision, for example, when a head part of an occupant secondarily collides with the instrument panel 10, a part 22A of the second film 22 extends in a peripheral part of this split 13, and the surface of the panel body 12 is maintained in a state of being covered with the second film 22. Thus, the exposure of the end part 12A (that is, the sharp edge) of the split part of this panel body 12, can be restrained. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle interior panel.

  Conventionally, the following are known as an interior panel for vehicles (for example, refer to patent documents 1). That is, Patent Document 1 discloses an interior member for a vehicle in which an acrylic film is provided on the front surface side of a base material and an impact absorbing rib is formed on the back surface side of the base material.

Japanese Patent Laid-Open No. 2002-120681 JP-A-10-58613 JP 2001-276725 A

  However, in this type of vehicle interior panel, when an occupant collides with the vehicle interior panel at the time of a vehicle collision, for example, stress is concentrated at the base of the shock absorbing rib or locally between the ribs. It is assumed that the panel body is cracked due to various deformations, and the edge of the cracked portion of the panel body (that is, the sharp edge) is exposed.

  The present invention has been made in view of the above problems, and even when a crack occurs in the panel main body, it is possible to suppress exposure of an end portion (that is, a sharp edge) of the cracked portion of the panel main body. An object of the present invention is to provide an interior panel for a vehicle that can be used.

  In order to solve the above-mentioned problem, an interior panel for a vehicle according to claim 1 is provided in a vehicle interior, and is provided on a panel body covering a vehicle structure provided in the vehicle, and on a surface side of the panel body. A second film is provided in a laminated state between the first film and the surface of the panel main body and the first film, is in close contact with the surface of the panel main body, and has a higher elasticity than the first film. And a film.

  According to this vehicle interior panel, a second film having a higher elasticity than the first film is provided between the surface of the panel main body and the first film, in close contact with the surface of the panel main body. Yes. Therefore, even when an occupant or the like collides with the vehicle interior panel at the time of a vehicle collision and a crack occurs in the panel body, a part of the second film extends at the periphery of the crack, and the surface of the panel body becomes the second surface. It is kept covered by the film. Thereby, it can suppress that the edge part (namely, sharp edge) of the broken part of this panel main body is exposed.

  The vehicle interior panel according to claim 2 is the vehicle interior panel according to claim 1, wherein a concave portion is formed on the surface side of the panel body, and a part of the second film is formed. However, it is set as the structure provided along the inner surface of the said recessed part.

  According to this vehicle interior panel, when an occupant or the like collides with the vehicle interior panel at the time of a vehicle collision and the panel main body is cracked starting from the recess, a part of the second film is restrained on both sides of the recess. Since a tensile force acts on a part of the second film, the part of the second film is stretched in a state where it is peeled off from the inner surface of the recess.

  Here, a part of the second film is originally provided along the inner surface of the recess. Therefore, as described above, when the panel main body is cracked starting from the concave portion, a part of the second film originally provided along the inner surface of the concave portion can be used as a slack, so that the crack has occurred. Even if the displacement amount of the panel piece increases, it is possible to suppress the part of the second film from breaking beyond the extension limit. Thereby, it can suppress more effectively that the edge part of the part which this panel main body broke is exposed.

  The vehicle interior panel according to claim 3 is the vehicle interior panel according to claim 1 or 2, wherein the vehicle interior panel projects toward the vehicle structure on the back surface of the panel body, and the vehicle structure. The deformation restricting portion having a gap for suppressing the interference with the vehicle structure is formed therebetween.

  According to this vehicle interior panel, even when a passenger collides with the vehicle interior panel at the time of a vehicle collision and a crack occurs in the panel body, among these, even if the panel piece having the deformation restricting portion is displaced to the vehicle body structure side The deformation restricting portion comes into contact with the vehicle body structure. Therefore, the displacement of the panel piece toward the vehicle body structure, that is, the deformation of the panel main body can be restricted, so that the second film can be prevented from breaking beyond the extension limit. Thereby, it can suppress more effectively that the edge part of the part which this panel main body broke is exposed.

  In addition, as described in claim 4, it is preferable that the vehicle interior panel according to any one of claims 1 to 3 is an instrument panel.

  As described above in detail, according to the present invention, even when a crack occurs in the panel body, it is possible to prevent the end portion (that is, sharp edge) of the cracked portion of the panel body from being exposed.

It is the figure which looked at the instrument panel as a vehicle interior panel which concerns on one Embodiment of this invention from the vehicle front-back direction rear side. It is a principal part expanded side sectional view of the instrument panel shown by FIG. It is a figure which shows the state which the crack produced in the panel main body of the instrument panel shown by FIG. 2A. It is a principal part expanded side surface sectional view which shows the modification of the instrument panel which concerns on one Embodiment of this invention. It is a figure which shows the state which the crack produced in the panel main body of the instrument panel shown by FIG. 3A. It is a principal part expanded side surface sectional view which shows the modification of the instrument panel which concerns on one Embodiment of this invention. It is a figure which shows the state which the crack produced in the panel main body of the instrument panel shown by FIG. 4A. It is a principal part expanded side surface sectional view which shows the modification of the instrument panel which concerns on one Embodiment of this invention. It is a figure which shows the state which the crack produced in the panel main body of the instrument panel shown by FIG. 5A. It is principal part expanded side surface sectional drawing which shows the instrument panel which concerns on the reference example of this invention. It is a figure which shows the state which the crack produced in the panel main body of the instrument panel shown by FIG. 6A.

  Hereinafter, an embodiment of the present invention will be described.

  Note that an arrow UP and an arrow OUT in FIG. 1 respectively indicate an upper side in the vehicle vertical direction and an outer side (right side) in the vehicle width direction. 2A and 2B indicate the front side and the back side of the instrument panel 10, respectively.

  As shown in FIG. 1, an instrument panel 10 as a vehicle interior member according to an embodiment of the present invention includes a panel body 12. The panel body 12 is made of resin and is attached to an instrument panel reinforcement spanned between left and right front pillars (not shown). The panel body 12 is provided in the vehicle compartment and covers the vehicle structure 14 such as an air conditioner or an airbag device provided in the vehicle from the upper side in the vehicle vertical direction.

  In the instrument panel 10, the region other than the region overlapping the steering wheel 16 in the upper part is configured as an impact absorbing portion 18 for absorbing the impact of the passenger's head. In FIG. 1, the shock absorbing portion 18 is shown hatched for easy understanding.

  The shock absorbing portion 18 has a cross-sectional configuration shown in FIG. 2A. That is, the shock absorbing portion 18 has a laminated structure including the panel body 12, the first film 20, and the second film 22 described above.

  The first film 20 is provided on the surface side of the panel body 12 and is in close contact with the surface of the second film 22 by, for example, adhesion. The first film 20 has a hard property so that the surface is not easily damaged, and has a light resistance to direct sunlight, a decorative property by printing a pattern, and the like. The first film 20 is preferably an acrylic film, for example.

  The second film 22 is provided between the surface of the panel body 12 and the first film 20 and is in close contact with the surface of the panel body 12 by, for example, adhesion. The second film 22 has higher stretchability than the first film 20. For example, the second film 22 is preferably an olefin film or an olefin elastomer film.

  In addition, the 1st film 20 and the 2nd film 22 may be provided in the whole panel main body 12 not only the impact absorption part 18. FIG. Further, the second film 22 may be provided only on the impact absorbing portion 18, and the first film 20 may be provided on the entire panel body 12.

  Further, the second film 22 may be a film formed in advance as a film body, and may be affixed to the surface of the panel body 12 by painting or the like, for example. Also good. Also, the first film 20 may be a film formed in advance as a film body, and may be affixed to the second film 22 as a film body on the surface of the second film 22 by, for example, painting. There may be.

  A reinforcing rib 30 is formed on the back surface of the panel body 12.

  Next, the operation and effect of one embodiment of the present invention will be described.

  According to this instrument panel 10, as shown in FIG. 2A, the surface of the panel body 12 and the first film 20 are in close contact with the surface of the panel body 12 and more than the first film 20. A second film 22 having high stretchability is provided.

  Therefore, when a passenger's head or the like collides with the instrument panel 10 at the time of a vehicle collision and a collision load F is input to the instrument panel 10, the panel body 12 is elastically deformed. The second film 22 is elastically stretched to absorb the impact force. Thereby, compared with the case of the panel main body 12 single-piece | unit, shock absorption performance can be improved.

  Moreover, when a collision load F is input to the instrument panel 10, as shown in FIG. 2B, even if a crack 13 occurs in the panel body 12 starting from the root portion of the reinforcing rib 30, A part 22 </ b> A of the second film 22 extends in the peripheral portion of the crack 13, and the surface of the panel body 12 is maintained in a state covered with the second film 22. Thereby, it can suppress that edge part 12A (namely, sharp edge) of the part which this panel main body 12 broke exposed in a vehicle interior.

  Moreover, since the panel main body 12 can be thinned by adopting a structure that suppresses the exposure of the end portion 12A of the cracked portion of the panel main body 12 in this way, it is possible to achieve weight reduction and cost reduction. .

  Moreover, according to this instrument panel 10, the 1st film 20 provided with the hardness, the light resistance, the decoration, etc. on the surface of the panel main body 12, and the 2nd film 22 provided with the elasticity separately Since it is provided, it is possible to achieve both the durability and design of the instrument panel 10 and the functionality of suppressing the exposure of the sharp edge into the vehicle interior.

  Next, a modification of one embodiment of the present invention will be described.

  In each of the drawings described below, arrows S and R indicate the front side and the back side of the instrument panel 10, respectively.

  In the embodiment described above, the shock absorbing unit 18 may be configured as follows, for example. That is, in the modification shown in FIG. 3A, a part of the panel body 12 is configured as a concave part 26 that is concave on the surface side, and a part 22 </ b> A of the second film 22 extends along the inner surface of the concave part 26. Is provided. A part 20 </ b> A of the first film 20 is provided along a part 22 </ b> A of the second film 22.

  According to this configuration, when the head of an occupant or the like collides with the instrument panel 10 at the time of a vehicle collision and the panel body 12 is cracked starting from the recess 26 as shown in FIG. 3B, the second film Since a tensile force acts on the part 22A of the second film 22 in a state where the part 22A of the 22 is constrained on both sides of the concave part 26, the part 22A of the second film 22 is peeled off from the inner surface of the concave part 26. It is stretched in the state.

  Here, a part 22 </ b> A of the second film 22 is originally provided along the inner surface of the recess 26. Therefore, as described above, when the panel main body 12 is cracked starting from the recess 26, the part 22A of the second film 22 originally provided along the inner surface of the recess 26 can be used as a slack. Therefore, even if the amount of displacement of the cracked panel piece 15 increases, it is possible to prevent the part 22A of the second film 22 from breaking beyond the extension limit. Thereby, it can suppress more effectively that the edge part 12A of the part which this panel main body 12 broke is exposed.

  In the modification shown in FIGS. 3A and 3B described above, a part of the panel body 12 is configured as the concave portion 26. However, as in the modification shown in FIGS. 4A and 4B, A recess 28 may be formed on the surface.

  Even if comprised in this way, there can exist an effect similar to the modification shown by above-mentioned FIG. 3A and FIG. 3B.

  Moreover, in the said embodiment, the impact absorption part 18 may be comprised as follows. That is, in the modification shown in FIG. 5A, a deformation restricting portion 32 that protrudes toward the vehicle structure 14 is formed. The deformation restricting portion 32 has a gap 34 between the vehicle structure 14 and the vehicle structure 14 for suppressing interference with the vehicle structure 14. This gap 34 is provided as a countermeasure against abnormal noise during vehicle travel.

  According to this configuration, as shown in FIG. 5B, a collision load F is input to the instrument panel 10 to cause a crack 13 in the panel body 12, and among these, the panel piece 15 having the deformation restricting portion 32 is the vehicle body structure. Even when displaced toward the body 14, the deformation restricting portion 32 is in contact with the vehicle body structure 14. Accordingly, since the displacement of the panel piece 15 toward the vehicle body structure 14, that is, the deformation of the panel body 12, can be restricted, the portion 22A of the second film 22 is prevented from breaking beyond the extension limit. can do. Thereby, it can suppress more effectively that the edge part 12A of the part which this panel main body 12 broke is exposed.

  In this modification, the gap 34 (the length of the deformation restricting portion 32) is maintained even when the panel piece 15 is displaced toward the vehicle body structure 14 until the deformation restricting portion 32 comes into contact with the vehicle body structure 14. The dimension of the second film 22 is set so that a portion 22A of the second film 22 falls within the extension limit.

  Further, the input direction of the collision load F is set when the vehicle frontal collision or the vehicle frontal offset collision or the like occurs in a state where the passenger's seat is set to the neutral position (center position) and the passenger wears the seat belt. This corresponds to the direction in which the head of the passenger collides with the instrument panel 10 in a secondary collision.

  The modification shown in FIGS. 5A and 5B may be combined with the modification shown in FIGS. 3A and 3B or the modification shown in FIGS. 4A and 4B.

  Further, in the above embodiment, the instrument panel 10 is provided with the impact absorbing portion 18 for absorbing the impact of the head of the occupant in a region other than the region overlapping the steering wheel 16 in the upper portion. An impact absorbing portion similar to the impact absorbing portion 18 may be formed in a region located below the impact absorbing portion 18 in order to absorb the impact of the occupant's knee.

  As mentioned above, although one Embodiment of this invention and its modification were demonstrated, this invention is not limited above, In addition to the above, in a range which does not deviate from the main point, it can implement variously. Of course there is.

  Of course, the present invention may be applied to vehicle interior panels (for example, cluster panels and pillar garnishes) other than the instrument panel.

  Next, reference examples of the present invention will be described.

  The instrument panel 40 as the vehicle interior panel according to the reference example of the present invention shown in FIG. 6A has a configuration in which the first film 20 is omitted from the instrument panel 10 according to the above-described embodiment of the present invention. Has been. The film 42 corresponds to the second film 22 described above.

  Even if comprised in this way, there can exist an effect similar to one embodiment of the above-mentioned this invention.

  Needless to say, the instrument panel 40 according to the reference example of the present invention can be modified similarly to the instrument panel 10 according to the embodiment of the present invention described above.

10 Instrument panel (vehicle interior panel)
12 Panel body 14 Vehicle structure 20 First film 22 Second film 26, 28 Concavity 32 Deformation restricting portion 34 Gap

Claims (4)

A panel body provided in the passenger compartment and covering a vehicle structure provided in the vehicle;
A first film provided on the surface side of the panel body;
A second film that is provided in a laminated state between the surface of the panel body and the first film, is in close contact with the surface of the panel body, and has a higher elasticity than the first film;
Vehicle interior panel with In a part of the panel main body, a concave portion that is concave on the surface side is formed,
A part of the second film is provided along the inner surface of the recess,
The vehicle interior panel according to claim 1. A deformation restricting portion that protrudes toward the vehicle structure and has a gap for suppressing interference with the vehicle structure is formed on the back surface of the panel body. Yes,
The vehicle interior panel according to claim 1 or 2. The vehicle interior panel is an instrument panel,
The vehicle interior panel according to any one of claims 1 to 3.

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