JP2016187984A - Vehicle interior material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle interior material which suppresses increase in worker hours during attachment.SOLUTION: A door lining 100 serving as a vehicle interior material includes: a lining body 110; and a protruding part 120 protruding from the lining body 110 toward another member (an inner panel 20) and having a tip which contacts with the other member. The protruding part 120 has: a protruding part body 121 protruding from the lining body 110 toward the other member; and a contact part 122 which is integrally formed with the protruding part body 121 at a tip of the protruding part body 121 and contacts with the other member. The contact part 122 is formed of a material having an elasticity modulus smaller than that of the protruding part body 121.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicular interior material, and more particularly to a vehicular interior material that includes a protruding portion that protrudes toward another member and that has a tip abutting against the other member.

  As a vehicle interior material, for example, Patent Literature 1 discloses a door lining. The door lining of Patent Document 1 has an extended rib and a protruding spacer (boss) on the back surface of the main body, and the rib or the tip of the spacer when the door lining is attached to the inner panel. Is in contact with the surface of the inner panel facing the passenger compartment.

JP 2010-241266 A

  By the way, in a vehicle interior material that protrudes toward another member such as an inner panel and has a protruding portion such as a rib or a boss whose tip abuts against the other member, noise is generated due to contact between the other member and the protruding portion. In order to suppress, a nonwoven fabric may be stuck on the front-end | tip of a protrusion part. However, in this case, when attaching the vehicle interior material, a process of attaching a non-woven fabric to the tip of the projecting portion is required, which increases the number of steps.

Then, an object of this invention is to provide the interior material for vehicles which can suppress the man-hour at the time of attaching increasing.
Moreover, an object of this invention is to improve the joining strength of a protrusion part main body and a contact part.
Moreover, an object of this invention is to provide a contact part favorably irrespective of the shape of a protrusion part main body.
Moreover, an object of this invention is to improve the rigidity of the interior material for vehicles.

  In order to achieve the above-described object, an interior material for a vehicle according to the present invention includes an interior material body and a projecting portion that projects from the interior material body toward the other member and has a tip abutting against the other member. The projecting portion is an interior material, and the projecting portion projects from the interior material main body toward the other member, and is formed integrally with the projecting portion main body at a distal end of the projecting portion main body. A contact portion that contacts the contact portion, and the contact portion is made of a material having a smaller elastic modulus than the protrusion main body.

  According to such a configuration, the contact portion made of a material having a smaller elastic modulus than the protrusion main body is formed integrally with the protrusion main body at the tip of the protrusion. Since the process of sticking the member for suppressing the generation becomes unnecessary, it is possible to suppress an increase in the number of steps for attaching the vehicle interior material.

  In the vehicle interior material described above, the projecting portion main body may have a configuration in which an area of a joint surface with the contact portion is larger than a cross-sectional area of a boundary portion with the interior material main body.

  According to this, since the joining area between the projecting portion main body and the abutting portion is increased, the joining strength between the projecting portion main body and the abutting portion can be improved.

  In the vehicle interior material described above, the joint surface between the projecting portion main body and the abutting portion may have a concavo-convex shape.

  According to this, since the joining area between the projecting portion main body and the abutting portion is increased, the joining strength between the projecting portion main body and the abutting portion can be improved.

  In the vehicle interior material described above, the joint surface between the projecting portion main body and the contact portion may be inclined with respect to the direction in which the projecting portion projects.

  According to this, since the joining area between the projecting portion main body and the abutting portion is increased, the joining strength between the projecting portion main body and the abutting portion can be improved.

  In the vehicle interior material described above, the joint surface between the projecting portion main body and the contact portion may be formed in a step shape.

  According to this, since the joining area between the projecting portion main body and the abutting portion is increased, the joining strength between the projecting portion main body and the abutting portion can be improved.

  In the vehicle interior material described above, the protrusion main body and the contact portion may be formed integrally by two-color molding.

  According to this, for example, even when the projecting portion main body is a rib and the tip width is narrow, or when the projecting portion main body is a boss and the tip end area is small, the contact portion is provided favorably. be able to. That is, regardless of the shape of the protrusion main body, the contact portion can be provided satisfactorily.

  In the vehicle interior material described above, the protrusion main body may be a rib.

  According to this, the rigidity of the vehicle interior material can be improved as compared with the configuration in which the protrusion main body is a boss.

  In the vehicle interior material described above, the contact portion may be made of an elastomer as an example.

  ADVANTAGE OF THE INVENTION According to this invention, it can suppress that the man-hour at the time of attaching the interior material for vehicles increases.

  According to the present invention, the area of the joint surface between the protrusion main body and the contact portion is larger than the cross-sectional area of the boundary portion between the protrusion main body and the interior material main body. The joint strength can be improved.

  Further, according to the present invention, the joining strength between the projecting portion main body and the contact portion can be improved by forming the joint surface between the projecting portion main body and the contact portion to have an uneven shape.

  In addition, according to the present invention, the joint surface between the projecting portion main body and the contact portion is inclined with respect to the direction in which the projecting portion projects, thereby improving the joint strength between the projecting portion main body and the contact portion. Can be made.

  In addition, according to the present invention, the joining strength between the projecting portion main body and the contact portion can be improved by forming the joint surface between the projecting portion main body and the contact portion in a stepped shape.

  Moreover, according to this invention, a contact part can be provided favorably irrespective of the shape of a protrusion part main body by integrally forming a protrusion part main body and a contact part by two-color molding.

  Moreover, according to this invention, the rigidity of a vehicle interior material can be improved by making a protrusion part main body into a rib.

It is sectional drawing of the door for vehicles provided with the door lining as a vehicle interior material which concerns on embodiment. It is XX sectional drawing of FIG. It is explanatory drawing of the manufacturing method of a door lining, and is a figure which shows the metal mold | die for shape | molding a door lining. It is explanatory drawing of the manufacturing method of a door lining, and is a figure which shows a mode that a lining main body and a protrusion part main body are shape | molded integrally. It is explanatory drawing of the manufacturing method of a door lining, and is a figure which shows a mode that the cavity for shape | molding a contact part is formed. It is explanatory drawing of the manufacturing method of a door lining, and is a figure which shows a mode that a contact part is integrally shape | molded at the front-end | tip of a protrusion part main body. It is explanatory drawing of the manufacturing method of a door lining, and is a figure which shows a mode that a metal mold | die is opened and a molded article is taken out. It is sectional drawing equivalent to the XX cross section of FIG. 1 of the vehicle interior material which concerns on a 1st modification. It is sectional drawing equivalent to the XX cross section of FIG. 1 of the vehicle interior material which concerns on a 2nd modification. It is sectional drawing equivalent to the XX cross section of FIG. 1 of the vehicle interior material which concerns on a 3rd modification.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings as appropriate.
As shown in FIG. 1, the vehicle interior material according to the present embodiment is formed as a door lining 100 that constitutes a vehicle door 1.

The vehicle door 1 mainly includes an outer panel 10, an inner panel 20, and a door lining 100.
In the present specification, the vertical and front / rear directions correspond to the vertical and front / back directions of the vehicle door 1. In addition, the inside and outside correspond to the inside (indoor side) and the outside (outside side) of the vehicle to which the vehicle door 1 is attached.

The outer panel 10 is a member that constitutes the exterior of the vehicle door 1 and is formed from a pressed steel sheet.
The inner panel 20 is disposed between the outer panel 10 and the door lining 100. The inner panel 20 is formed from a pressed steel plate and is joined to the outer panel 10. Between the inner panel 20 and the outer panel 10, a door lock device (not shown), a window regulator device 60 for raising and lowering the door glass 50, and the like are arranged.

The door lining 100 is a member constituting the interior of the vehicle door 1, and includes a lining body 110 as an interior material body and a protrusion 120.
The lining body 110 is made of, for example, a resin such as an ABS resin or a polypropylene resin. The lining body 110 is provided with an armrest 111, a door pocket 112, and the like.

  The protruding portion 120 is formed in a rib shape that protrudes from the upper portion of the outer surface of the lining body 110 toward the inner panel 20 as another member and extends along the vertical direction. When the door lining 100 is attached to the inner panel 20, the protrusion 120 abuts on the upper part of the inner surface of the inner panel 20. Thereby, rattling between the door lining 100 and the inner panel 20 is suppressed. A plurality of such protrusions 120 may be provided so as to be arranged in the front-rear direction (front and back directions in FIG. 1).

As shown in FIG. 2, the protruding portion 120 includes a protruding portion main body 121 and a contact portion 122 formed at the tip of the protruding portion main body 121.
The protruding portion main body 121 is a rib protruding from the lining main body 110 toward the inner panel 20 and is formed integrally with the lining main body 110. That is, the protrusion main body 121 is formed from a resin such as ABS resin or polypropylene resin.

  The protrusion main body 121 has an area of the joint surface 121 </ b> A with the contact portion 122 larger than the cross-sectional area of the boundary portion (boundary portion 121 </ b> B) with the lining main body 110. More specifically, the projecting portion main body 121 has a proximal end portion 123, a connecting portion 124, and a distal end portion 125, which are sequentially arranged from the inner side (upper side in FIG. 2) to the outer side (lower side in FIG. 2). doing. The lengths of the base end portion 123, the connection portion 124, and the tip end portion 125 in the vertical direction (front and back directions in FIG. 2) are equal to each other, while the thickness of the tip end portion 125 (the front-rear direction) (Length in the left-right direction in FIG. 2) is thicker than the thickness of the base end portion 123. Thus, in the protruding portion main body 121, the area of the joining surface 121 </ b> A that is the outer end of the distal end portion 125 is larger than the cross-sectional area of the boundary portion 121 </ b> B that is the inner end of the base end portion 123.

  The connecting portion 124 has an inner end thickness equal to the proximal end portion 123 thickness, and an outer end thickness equal to the distal end portion 125 thickness. It gradually gets thicker as you head. That is, the connecting portion 124 smoothly connects the base end portion 123 and the distal end portion 125 so that the thickness of the protruding portion main body 121 does not change abruptly.

  In the present embodiment, the base end portion 123, the connection portion 124, and the distal end portion 125 are substantially flush with one side in the front-rear direction (the right side in FIG. 2). Thereby, the protrusion main body 121 is a plane in which the first side surface 121C extends straight from the inside toward the outside. On the other hand, since the thickness of the distal end portion 125 is larger than the thickness of the base end portion 123, the protruding portion main body 121 is a lining of the second side surface 121D (the left side surface in FIG. 2) which is the other surface in the front-rear direction. A recess 121E having a shape recessed in the front-rear direction is provided on the base end side connected to the main body 110.

  The contact portion 122 is a portion that actually contacts the inner panel 20 when the door lining 100 is attached to the inner panel 20. The contact portion 122 is made of a material having a smaller elastic modulus than the material forming the protruding portion main body 121. Specifically, the contact portion 122 is made of an elastomer such as TPO (thermoplastic olefin). The contact portion 122 is made of a material having a different elastic modulus from the protruding portion main body 121, but is formed integrally with the protruding portion main body 121. That is, in the present embodiment, the contact portion 122 is not formed by being attached to the tip of the protruding portion main body 121.

  For example, when the protrusion main body 121 is made of polypropylene resin and the contact portion 122 is made of TPO, the protrusion main body 121 and the contact portion 122 are both made of olefin, that is, the same material system. Therefore, when it forms integrally, the joining strength of the protrusion part main body 121 and the contact part 122 can be made favorable.

  The protrusion main body 121 and the contact portion 122 are integrally formed by two-color molding. Here, the two-color molding means that materials having different elastic moduli are combined and molded integrally. Therefore, the material system of the protrusion main body 121 and the contact portion 122 may be the same or different. Moreover, the color of the protrusion part main body 121 and the contact part 122 may be the same, and may differ.

Next, an example of a manufacturing method (two-color molding) of the door lining 100 will be described.
As shown in FIG. 3, the mold 200 for molding the door lining 100 mainly includes a first mold 210, a second mold 220, a third mold 230, and a fourth mold 240. ing.

The first mold 210 has an inner molding surface 211 that represents the shape of the inner (upper side) surface of the lining body 110.
The second mold 220 is shaped like the shape of the first outer side molding surface 221 that is a shape of a part of the outer side (lower side of the figure) of the lining body 110 and the shape of the first side surface 121C of the protruding portion body 121. And a first side molding surface 222.

The third mold 230 includes a second outer molding surface 231 that is shaped like the remaining part of the outer surface of the lining main body 110 (a peripheral portion of the protrusion main body 121), and a second side surface 121D of the protrusion main body 121. And a second side surface molding surface 232 in the shape of the above. The third mold 230 is assembled to the second mold 220.
The fourth mold 240 has a joint surface molding surface 241 that is shaped like the joint surface 121 </ b> A of the protruding portion main body 121. The 4th type | mold 240 is assembled | attached between the 2nd type | mold 220 and the 3rd type | mold 230, and is arrange | positioned so that a movement up and down is possible.

When manufacturing the door lining 100, first, the third mold 230 and the fourth mold 240 are assembled to the second mold 220, and the mold 200 is assembled by combining the second mold 220 and the first mold 210.
Next, as shown in FIG. 4, the lining body 110 and the projecting part body 121 are integrally formed by pouring molten resin into a cavity C <b> 1 from a gate (not shown) and hardening it.

Next, as shown in FIG. 5, the fourth die 240 is moved so as to be shifted downward in the figure, and between the joining surface 121 </ b> A of the protruding portion main body 121 and the joining surface molding surface 241 of the fourth die 240. Cavity C2 is formed.
Next, as shown in FIG. 6, the melted elastomer is poured into a cavity C <b> 2 from a gate (not shown) and hardened to form the contact portion 122 integrally with the tip of the projecting portion main body 121. Thereby, the protrusion part 120 will be shape | molded.

And as shown in FIG. 7, the metal mold | die 200 is opened and a molded article is taken out. The door lining 100 can be manufactured by the processes as described above.
In addition, the taken-out molded product (door lining 100) cut | disconnects the front-end | tip part of an elastomer part so that the contact surface 122A contact | abutted to the inner panel 20 of the contact part 122 may become flat as needed, for example. Etc.

  According to the present embodiment described above, as shown in FIG. 2, the contact portion 122 made of a material having a smaller elastic modulus than the protrusion main body 121 is integrated with the protrusion main body 121 at the tip of the protrusion 120. Therefore, a process of attaching a member that suppresses the generation of sound, such as a nonwoven fabric, to the tip of the protruding portion becomes unnecessary. Thereby, it can suppress that the man-hour at the time of attaching the door lining 100 to the vehicle door 1 increases.

  Moreover, since the area of the joint surface 121A is larger than the cross-sectional area of the boundary part 121B, the joint part 121 of the protrusion part main body 121 and the contact part 122 can be enlarged. Thereby, the joining strength of the resin-made protrusion part main body 121 and the elastomer contact part 122 can be improved.

  Further, in the present embodiment, the protrusion main body 121 has a thickness (wall thickness) of the base end portion 123 connected to the lining main body 110, so that the lining main body 110 and the protrusion main body 121 are formed. Moreover, it is possible to suppress the occurrence of sink marks on the surface of the molded product. On the other hand, since the area of the joining surface 121A can be increased by increasing the thickness of the distal end portion 125, as described above, the joining strength between the protruding portion main body 121 and the contact portion 122 made of different materials is improved. Can be made.

  In addition, since the protruding portion main body 121 and the contact portion 122 are integrally formed by two-color molding, the protruding portion main body 121 is formed as a rib with a narrow tip as in this embodiment. Even if it exists, the contact part 122 can be provided favorably.

  Moreover, since the protrusion part main body 121 is a rib, the rigidity of the door lining 100 can be improved compared with the structure where a protrusion part main body is a boss | hub, for example.

  As mentioned above, although one Embodiment of invention was described, this invention is not limited to the said embodiment. About a concrete structure, it can change suitably in the range which does not deviate from the meaning of invention as follows.

  In the embodiment, the bonding surface 121A between the protruding portion main body 121 and the contact portion 122 has a planar shape orthogonal to the direction in which the protruding portion 120 protrudes, but is not limited thereto. For example, as illustrated in FIG. 8, the bonding surface 121 </ b> L between the protruding portion main body 121 and the contact portion 122 may be a surface having an uneven shape. The door lining 100 having such a joining surface 121L is manufactured by forming the joining surface molding surface 241 of the fourth mold 240 shown in FIG. 3 into a surface having an uneven shape and performing two-color molding as described in the above embodiment. can do.

  As shown in FIG. 9, the joint surface 121 </ b> M between the protruding portion main body 121 and the contact portion 122 is a plane that is inclined with respect to the direction in which the protruding portion 120 protrudes when viewed from the front-rear direction or the vertical direction. There may be. In the door lining 100 having such a joint surface 121M, the joint surface molding surface 241 of the fourth mold 240 shown in FIG. After color molding and taking out the molded product from the mold 200, it can be manufactured by cutting so that the contact surface 122A becomes flat.

  As shown in FIG. 10, the joint surface 121N between the protruding portion main body 121 and the contact portion 122 may be a surface formed in a step shape when viewed from the front-rear direction or the vertical direction. The door lining 100 having such a joining surface 121N has a stepped surface as the joining surface molding surface 241 of the fourth mold 240 shown in FIG. 3, and is molded in two colors as described in the above embodiment. After taking out from the mold 200, it can be manufactured by cutting so that the contact surface 122A becomes flat.

  According to the modified embodiments as shown in FIGS. 8 to 10, the bonding area between the protruding portion main body 121 and the abutting portion 122 can be further increased, and therefore the bonding strength between the protruding portion main body 121 and the abutting portion 122. Can be further improved.

  In the above-described embodiment, the projecting portion main body 121 has an area of the joining surface 121A with the contact portion 122 larger than the cross-sectional area of the boundary portion 121B with the lining main body 110, but is not limited thereto. Absent. For example, if the bonding surface can be a surface having an uneven shape, and the bonding strength between the protrusion main body and the contact portion can be ensured, the protrusion main body has an area of the bonding surface with the contact portion, It may be the same as the cross-sectional area of the boundary portion with the interior material body. In other words, the thickness of the protrusion main body may be constant from the inner end to the outer end.

  In the said embodiment, although the protrusion part main body 121 was a rib, it is not limited to this, For example, a boss | hub etc. may be sufficient. In addition, by integrally forming the protrusion main body and the contact portion by two-color molding, when the protrusion main body is a rib and the tip width is narrow, or the protrusion main body is a boss and the area of the tip is small. Even if it is a shape which is hard to stick a nonwoven fabric like the case where it is small, a contact part can be provided favorably. That is, by forming the projecting portion main body and the contact portion integrally by two-color molding, the contact portion can be satisfactorily provided regardless of the shape of the projecting portion main body.

  In the said embodiment, although the door lining 100 was illustrated as an interior material for vehicles, it is not limited to this. For example, the vehicle interior material may be an instrument panel or a console box. In this case, the other member with which the projecting portion comes into contact is naturally not limited to the inner panel 20 of the vehicle door 1.

20 Inner panel 100 Door lining 110 Lining body 120 Protruding part 121 Protruding part body 121A Joining surface 121B Boundary part 122 Abutting part

Claims (8)

An interior material for a vehicle comprising: an interior material body; and a projecting portion that projects from the interior material body toward the other member and a tip of which contacts the other member,
The projecting portion includes a projecting portion main body projecting from the interior material body toward the other member, and a contact portion formed integrally with the projecting portion main body at a distal end of the projecting portion main body and contacting the other member. Have
The vehicle interior material, wherein the contact portion is made of a material having a smaller elastic modulus than the protrusion main body.   2. The vehicle interior material according to claim 1, wherein an area of a joint surface between the projecting portion main body and the contact portion is larger than a cross-sectional area of a boundary portion with the interior material main body.   The vehicle interior material according to claim 1, wherein a joint surface between the projecting portion main body and the contact portion has an uneven shape.   4. The vehicle according to claim 1, wherein a joint surface between the projecting portion main body and the contact portion is inclined with respect to a direction in which the projecting portion projects. Interior material.   5. The vehicle interior material according to claim 1, wherein a joint surface between the projecting portion main body and the contact portion is formed in a stepped shape.   The vehicle interior material according to any one of claims 1 to 5, wherein the protrusion main body and the contact portion are integrally formed by two-color molding.   The vehicle interior material according to any one of claims 1 to 6, wherein the protrusion main body is a rib.   The vehicle interior material according to any one of claims 1 to 7, wherein the contact portion is made of an elastomer.

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