JP2008195340A - Vehicular door trim - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle door trim capable of reducing a shock applied to an occupant at the time of side clash while assuring a sufficient supporting force against a normally applied load. <P>SOLUTION: An engagement claw 32 of a pull-handle box 30 is inserted into and engaged with a fixing hole 23 of a metallic bracket 21 fixed to a door inner panel 20 and an engagement hole 17 of a fixing seat 16 protruded and formed at a main board 10A. In this case, a sufficient supporting force can be assured by the metallic bracket 21 against a load always acted to the pull-handle box 30. In addition, the engagement claw 32 integrally formed with the pull-handle box 30 is made of a synthetic resin, soft as compared with the metallic bracket 21 and at the time of occurrence of side crash, the engagement claw 32 is easily broken by the fixing hole 23 of the bracket 21, so that it becomes possible to reduce the shock applied to an occupant at the time of side crash. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle door trim in which a container-shaped pull handle box having an upper opening is attached to an armrest portion formed so as to project to the vehicle interior side.

Generally, a door trim is mounted as an interior material on the inner side (vehicle interior side) of a door panel of an automobile or the like. The door trim has an armrest part that is used as an armrest for the occupant, and a pull handle with a container shape that opens upward so that the occupant can insert a fingertip when closing the door. A box is housed.
In order to prevent the pull handle box from sinking downward when the occupant places his elbow on the armrest, as shown in Patent Document 1, for example, a screw is attached to a metal bracket connected to the door panel. Sufficient support force is ensured by being fastened and fixed using.
JP 2005-67348 A

However, in the structure as described above, since the pull handle box and the bracket are fixed by a metal screw, the fixed portion is hard and difficult to break. When a collision (side collision) occurs from the side of the door, the armrest breaks and deforms to absorb the impact on the occupant, so a device to further reduce the impact Was desired.
The present invention has been completed based on the above circumstances, and it is possible to reduce the impact given to the occupant at the time of a side collision while ensuring a sufficient supporting force for a load acting at all times. An object of the present invention is to provide a possible vehicle door trim.

  As means for achieving the above object, the invention of claim 1 is directed to a vehicle door trim in which a container-shaped pull handle box having an upper opening is attached to an armrest portion formed so as to project to the vehicle interior side. The pull handle box is fixed to a metal bracket provided on a vehicle interior side surface of the door inner panel, and a mounting hole provided in the bracket is provided on a lower surface of the pull handle box. An engaging claw that is inserted into and engaged with the pull handle box is provided, and the pull handle box and the engaging claw are integrally formed of synthetic resin.

According to a second aspect of the present invention, in the first aspect of the present invention, the mounting seat to which the pull handle box can be mounted is provided integrally with the outer wall surface of the main board constituting the door trim. It has the characteristics.
The invention of claim 3 is characterized in that, in the invention of claim 1 or 2, the claw portion formed on the engagement claw has a shape protruding toward the vehicle interior side.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the engagement claw includes at least one of the engagement claw when the engagement claw is inserted into the attachment hole. It is characterized in that a ratchet prevention rib that can prevent rattling of the engaging claw with respect to the mounting hole by being crushed is provided.
The invention of claim 5 is characterized in that, in any one of claims 1 to 4, the end of the bracket on the vehicle interior side is bent upward or downward.

According to a sixth aspect of the present invention, in any one of the second to fifth aspects, the attachment seat is provided with an engagement hole into which the engagement claw is inserted and engaged. In addition, a characteristic is that a flange portion that is bent downward is provided at a hole edge portion on the vehicle interior side of the engagement hole.
According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the wall surface on the vehicle exterior side of the main board constituting the door trim can contact the side surface of the pull handle box. It is characterized in that the support rib is protruded.

<Invention of Claim 1>
The engaging claw of the pull handle box is inserted into and engaged with the mounting hole of the metal bracket attached to the door inner panel. This bracket ensures a sufficient supporting force against a load that is constantly applied to the pull handle box. Further, since the engaging claw is made of synthetic resin and is softer than the metal bracket, it is easily damaged by the bracket at the time of a side collision. Therefore, it is possible to reduce the impact given to the occupant at the time of a side collision while ensuring a sufficient supporting force with respect to the load acting at all times.
Further, since the pull handle box can be attached simply by inserting the engaging claw into the attachment hole, the attachment work is easy as much as it does not require trouble such as screw tightening.
In addition, since the engaging claw is integrally formed on the lower surface of the pull handle box, the head of a screw or the like is not seen from above the pull handle box, and the appearance is good.

<Invention of Claim 2>
A mounting seat to which the pull handle box can be mounted is provided integrally with the outer wall surface of the main board constituting the door trim. Thereby, since the pull handle box is attached to the mounting seat in addition to the bracket, the backlash is suppressed compared to the case where the pull handle box is attached only to the bracket. In addition, since the pull handle box is fixed to the mounting seat via the bracket when the engaging claw of the pull handle box is engaged with the mounting seat provided integrally with the door trim, a large shearing force acts on the engaging claw. The above-described effects can be obtained while reducing the impact on the occupant during a side collision.

<Invention of Claim 3>
The claw portion formed on the engaging claw is shaped to protrude toward the vehicle interior side (the side that matches the direction of the force acting on the pull handle box when a fingertip is inserted into the pull handle box and the door is closed). . That is, since the direction of the force that frequently acts on the pull handle box coincides with the direction in which the engagement allowance of the claw portion increases, the engagement state of the claw portion is reliably maintained.

<Invention of Claim 4>
The engagement claw is provided with a backlash prevention rib that can prevent backlash of the engagement claw with respect to the attachment hole when at least a part of the engagement claw is crushed when the engagement claw is inserted into the attachment hole. Thereby, the pull handle box is attached to the armrest portion without rattling.

<Invention of Claim 5>
Since the end of the bracket on the vehicle interior side is bent upward or downward, it is difficult for the end of the bracket to protrude toward the vehicle interior during a side collision.

<Invention of Claim 6>
The mounting seat is provided with an engaging hole into which an engaging claw is inserted and engaged, and a flange portion that is bent downward is provided at a hole edge portion on the vehicle interior side of the engaging hole. Yes. As a result, the contact area between the hole edge of the engagement hole and the side surface of the engagement claw increases by the amount of the flange portion, so that the stress generated by the contact of both surfaces by the door closing operation is dispersed, and thus the engagement claw or Damage to the engagement hole is prevented.

<Invention of Claim 7>
A support rib that protrudes from the side surface of the pull handle box is provided on the wall surface of the main board constituting the door trim on the vehicle outer side. Thus, when the pull handle box is about to be displaced by receiving a force toward the vehicle interior in the door closing operation, the side surface is supported by the support rib, so that the pull handle box is reliably held in the correct posture. .

Embodiments of the present invention will be described below with reference to FIGS. The vehicle door trim 10 in this embodiment is attached to the vehicle interior side of the inner panel 20 of the vehicle door and is used as an interior material. The door trim 10 is formed with an armrest portion 11 so as to project to the vehicle interior side, and a container-shaped pull handle box 30 having an open top is attached to the armrest portion 11.
In the following description, the upper left side in FIG. 1 is the vehicle front side, the lower right side is the vehicle rear side, the lower left side is the vehicle interior side, and the upper right side is the vehicle outer side.

  The door trim 10 is formed in a desired curved surface shape from a synthetic resin material such as polypropylene. And the armrest part 11 used as a passenger | crew's armrest is formed in the main board 10A which comprises the main body of the door trim 10 so that it may protrude in the vehicle interior side. In addition to the pull handle box 30, various accessories and instruments such as a pocket 12, a switch 13 for operating the power window, and an inside handle 14 are mounted or formed on the main board 10 </ b> A. Note that a skin material such as a woven fabric, a nonwoven fabric, or a synthetic resin sheet may be appropriately selected and adhered to the surface of the door trim 10 (the surface on the vehicle interior side).

  The pull handle box 30 is used to open and close the door of the vehicle when the occupant inserts a fingertip, and as shown in FIG. 2, the pull handle box 30 is formed in a case shape having an upper surface opened by a synthetic resin. A collar portion 31 is provided around the opening edge of the pull handle box 30, and the collar portion 31 is placed on the mouth edge portion 15 </ b> A of the opening 15 formed on the upper surface of the armrest portion 11.

  An engagement claw 32 is formed on the lower surface of the pull handle box 30. The engaging claws 32 are formed integrally with the pull handle box 30 at the same time. The engaging claw 32 has an outer shape that can be inserted into a mounting hole 23 and an engaging hole 17 described later, and hangs down from the lower surface of the pull handle box 30 with a predetermined dimension.

  A claw portion 33 is formed at the lower end portion of the engagement claw 32. The claw portion 33 protrudes toward the vehicle interior side. The upper surface of the claw portion 33 is an engaging surface 33A that is inclined.

  A ratchet prevention rib 34 is provided on the outer surface of the engagement claw 32 so as to protrude toward the outer side of the vehicle interior. The rattle prevention rib 34 is provided at a substantially central position in the front-rear direction of the engaging claw 32, and extends vertically from the lower surface of the pull handle box 30 to the lower end of the engaging claw 32 (see FIG. 3). The protrusion dimension of the rattle prevention rib 34 is such that when the engagement claw 32 is inserted into the attachment hole 23 and the engagement hole 17, at least a part of the protrusion end abuts against the hole edge. In addition, when the rattle prevention rib 34 is crushed, the engagement claw 32 receives a reaction force in a direction to increase the engagement allowance of the claw portion 33. Thereby, the engagement state of the nail | claw part 33 is hold | maintained more reliably. And since the rattle prevention rib 34 exists in the center position of the engagement claw 32 in the front-rear direction, the force in the direction to increase the engagement margin of the claw portion 33 acts in a balanced manner in the front-rear direction. Further, the rattle prevention rib 34 is formed with such a strength that does not hinder the impact absorbing performance (deformation, etc.) of the engaging claw 32 in a side collision.

  The pull handle box 30 is fixed to a metal bracket 21. The metal bracket 21 is fixed to the surface of the door inner panel 20 on the vehicle interior side with screws 22. The bracket 21 is provided with an attachment portion 21A to which the pull handle box 30 is attached. The attachment portion 21 </ b> A is disposed below the pull handle box 30 and has a thin plate shape along the lower surface of the pull handle box 30. In the present embodiment, the bracket 21 is fixed to the door inner panel 20 by screws 22, but may be fixed by rivets or welding instead of the screws 22.

  The mounting portion 21A is formed with a mounting hole 23 that has a shape into which the engaging claw 32 can be inserted and penetrates in the vertical direction. A flange 23a bent downward is formed on the vehicle interior side of the mounting hole 23. Further, the end portion 21B of the bracket 21 on the vehicle interior side is bent upward.

  The bracket 21 has sufficient rigidity to withstand a load acting on the pull handle box 30 when the occupant supports the body or opens / closes the door. In addition, by appropriately setting the thickness dimension of the bracket 21 and the length dimension in the front-rear direction, the bracket 21 can be provided with appropriate shock absorbing performance.

  A mounting seat 16 to which the pull handle box 30 can be mounted is integrally provided on the vehicle outer wall surface of the main board 10A. The mounting seat 16 protrudes from the main board 10A toward the door inner panel 20 side, and has a plate-like seating portion 16A and a base portion 16B having a larger thickness in the vertical direction than the seating portion 16A. It has. The seating portion 16A is arranged along the lower surface of the mounting portion 21A of the bracket 21, and has a thickness dimension larger than the thickness dimension in the vertical direction of the mounting portion 21A. By this mounting seat 16, the support force of the pull handle box 30 is enhanced.

  The seating portion 16A is formed with an engagement hole 17 into which the engagement claw 32 is inserted and engaged. The engagement hole 17 penetrates in the vertical direction in a shape in which the engagement claw 32 can be inserted (in other words, a shape substantially equal to the attachment hole 23). The engagement hole 17 is formed at a position overlapping with the attachment hole 23 in the vertical direction, and communicates coaxially with the attachment hole 23.

  A flange portion 18 that is bent downward is provided at a hole edge portion of the engagement hole 17 on the vehicle interior side. The flange portion 18, together with the flange 23 a provided at the edge portion of the mounting hole 23 of the bracket 21, is pulled toward the passenger compartment side at the hole edge portion of the engagement hole 17 (when a finger is inserted into the pull handle box 30 to close the door The pull handle box 30 is arranged on the side to be displaced by a force acting on the handle box 30. The flange portion 18 hangs down from the lower surface of the pull handle box 30 along the side surface of the engagement claw 32 to the position of the engagement surface 33A.

  Further, a support rib 19 that can come into contact with the side surface of the pull handle box 30 is integrally provided on the wall surface of the main board 10 </ b> A outside the vehicle. The support rib 19 is provided to support the pull handle box 30 from the vehicle interior side. The pull handle box 30 is supported at a predetermined position by the support rib 19.

Next, the operation and effect of the present embodiment configured as described above will be described.
The pull handle box 30 has an engaging claw 32 inserted into the mounting hole 23 and the engaging hole 17, and an engaging surface 33 </ b> A of the claw portion 33 is a hole edge portion of the engaging hole 17 (specifically, a lower surface of the flange portion 18). ) From below, it is attached to the door trim.

  The pull handle box 30 is supported by the metal bracket 21, so that a sufficient supporting force is ensured for a load that always acts. When the mounting hole 23 hits the engaging claw 32 from the side at the time of a side collision of the vehicle, the engaging claw 32 made of a synthetic resin that is softer than the metal bracket 21 is broken as shown in FIG. . Therefore, for example, the armrest portion 11 is easily deformed at the time of a side collision as compared with the case where the pull handle box 30 is fixed with a metal screw or the like instead of the engagement claw 32, and the impact on the occupant can be reduced. That is, according to such a configuration, the vertical support force of the armrest portion 11 can be ensured by the rigidity of the bracket 21, and the fixing portion (engagement claw 32 of the pull handle box 30 and the bracket 21 can be secured). ) Is easily damaged during a side impact, so that the collision energy is absorbed and the impact on the occupant is reduced.

  Further, since the pull handle box 30 can be attached to the armrest portion 11 simply by inserting the engaging claw 32 into the attaching hole 23 and the engaging hole 17, the attaching work can be facilitated as much as it does not require labor such as screw tightening. is there.

  In addition, since the engaging claws 32 are integrally formed on the lower surface of the pull handle box 30, the heads of screws and the like are not seen from above the pull handle box 30, and the appearance is good. Moreover, since the engaging claw 32 is provided integrally with the pull handle box 30, these can be integrally formed at the same time, and an increase in manufacturing cost can be suppressed.

  Further, since the engaging claw 32 of the pull handle box 30 is inserted and attached not only to the mounting hole 23 of the bracket 21 but also to the engaging hole 17 of the mounting seat 16, it is attached only to the bracket 21. Compared to the case where the pull handle box 30 is loose, the play of the pull handle box 30 is suppressed.

  The mounting seat 16 is made of the same material as the main board 10A of the door trim 10, and the plate-like seating portion 16A protrudes from the base portion 16B having a large thickness in the vertical direction. The external force concentrates on the connecting portion between the seating portion 16A and the base portion 16B, and is easily broken. Thereby, since the armrest part 11 deform | transforms easily with respect to external force, said effect can be acquired, implement | achieving reduction of the impact given to a passenger | crew at the time of a side collision.

  Further, the claw portion 33 formed on the engagement claw 32 is directed toward the vehicle interior side (the side that coincides with the direction of the force acting on the pull handle box 30 when a fingertip is inserted into the pull handle box 30 and the door is closed). This is a protruding shape. That is, since the direction of the force frequently applied to the pull handle box 30 coincides with the direction in which the engagement margin of the claw portion 33 increases, the engagement state of the claw portion 33 is reliably maintained.

  Further, the engagement claw 32 is crushed at least partially when the engagement claw 32 is inserted into the attachment hole 23 and the engagement hole 17, so A backlash prevention rib 34 that can prevent backlash is provided. Thereby, the pull handle box 30 is attached to the armrest part 11 without rattling.

  Further, since the end portion 21B on the vehicle interior side of the bracket 21 is bent upward, it is difficult for the end portion of the bracket 21 to protrude toward the vehicle interior during a side collision.

  Further, a flange portion 18 that is bent downward is provided at a hole edge portion on the vehicle interior side of the engagement hole 17. As a result, the contact area between the mounting seat 16 and the engaging claw 32 is increased by the amount of the flange portion 18, so that the stress generated by the contact of both faces is dispersed, and the engaging claw 32 or the mounting seat 16 is damaged. Is prevented.

  Further, the flange portion 18 and the flange 23a are formed in the pull handle box 30 by the force acting on the pull handle box 30 when the finger is inserted into the pull handle box 30 and the door is closed. Is placed on the side to be displaced. That is, since the stress is dispersed in a portion that may come into contact with the engaging claw 32 every time the door is closed, the normal durability is high.

  A support rib 19 that protrudes from the side surface of the pull handle box 30 is provided on the wall surface of the main board 10 </ b> A constituting the door trim 10 on the vehicle exterior side. As a result, when the pull handle box 30 is about to be displaced by receiving a force toward the interior of the vehicle interior, the side surfaces thereof are supported by the support ribs 19, so that the pull handle box 30 is reliably held in the correct posture.

  As described above, according to this embodiment, the mounting holes 23 of the metal bracket 21 attached to the surface on the vehicle interior side of the door inner panel 20 and the wall surface on the vehicle exterior side of the main board 10A are formed to project. The engaging claw 32 of the pull handle box 30 is inserted into and engaged with the engaging hole 17 of the mounting seat 16.

  At this time, the metal bracket 21 ensures a sufficient supporting force against the load that is constantly applied to the pull handle box 30. Further, the engaging claw 32 formed integrally with the pull handle box 30 by molding is made of synthetic resin and is softer than the metal bracket 21, so that the engaging claw 32 is attached to the bracket 21 at the time of a side collision. It is easily damaged by the hole 23. Therefore, it is possible to reduce the impact given to the occupant at the time of a side collision while ensuring a sufficient supporting force with respect to the load acting at all times.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the above embodiment, the pull handle box 30 is attached not only to the metal bracket 21 but also to the mounting seat 16 of the main board 10A. It may be.

  (2) In the above embodiment, the claw portion 33 protrudes toward the vehicle interior side. However, the present invention is not limited thereto, and the claw portion 33 may protrude in any direction. For example, the vehicle outer side, the vehicle front side, Or you may protrude toward the rear side.

  (3) In the above-described embodiment, the engagement claw 32 is provided with the rattle prevention rib 34 and the pull handle box 30 is attached to the armrest portion 11 without rattling. When it is allowed or when other anti-rattle means are provided, the anti-rattle rib need not be provided.

  (4) In the above embodiment, the rattling prevention rib 34 is provided on the back surface of the engaging claw 32. However, the present invention is not limited to this, and the pull handle box may be provided on any side surface of the engaging claw. It is possible to suppress rattling.

  (5) In the above-described embodiment, the end portion 21B on the vehicle interior side of the bracket 21 is bent upward to absorb the impact energy at the time of a side collision. However, the present invention is not limited thereto, and for example, a mounting seat 16 is provided. If not, it may be bent downward.

  (6) In the above embodiment, the support rib 19 is integrally projected on the wall surface of the main board 10A outside the vehicle, and the pull handle box 30 is reliably held in the correct posture, but the support rib is not necessarily provided. It does not have to be.

(7) In the above embodiment, the engaging claw 32 has a shape in which the claw portion 33 protruding toward the vehicle interior side is formed at the lower end portion thereof, but this is not restrictive, and the engaging claw is attached. Any shape can be used as long as it can be engaged with the hole. For example, a shape in which the claw portions 41 are formed in a pair or over the entire circumference like the engagement claw 40 shown in FIG. Well (Modification 1), and like the engaging claw 50 shown in FIG. 6, it may be composed of a pair of elastic leg pieces 52 having a claw 51 formed at the lower end (Modification 2). .
(8) In the above embodiment, the flange portion 18 is provided in the engagement hole 17 of the mounting seat 16 and the flange 23a is formed in the mounting hole 23 of the bracket 21. As shown in FIG. 8, the flange portion 62 may be provided only in the engagement hole 61 of the mounting seat 60 (Modification 3). Also, as shown in FIG. 8, only the mounting hole 71 of the bracket 70 has a flange 72. May be formed (Modification 4).
(9) In the above-described embodiment, the flange portion 18 is bent downward. However, the present invention is not limited to this, and for example, as shown in FIG. 9, the flange portion 80 is bent downward. Thereafter, the shape may be further bent toward the engaging claw (Modification 5).

The perspective view of the vehicle door trim in this embodiment Cross section of vehicle door trim A perspective view of the engaging claw as seen from below Conceptual diagram showing how the engaging claws break Sectional drawing showing the shape of the engagement nail | claw which concerns on the modification 1. Sectional drawing showing the shape of the engagement nail | claw which concerns on the modification 2. Sectional drawing showing the shape of the flange part which concerns on the modification 3. Sectional drawing showing the shape of the flange which concerns on the modification 4 Sectional drawing showing the shape of the flange part which concerns on the modification 5.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Vehicle door trim 10A ... Main board 11 ... Armrest part 16 ... Mounting seat 17 ... Engagement hole 18 ... Flange part 19 ... Supporting rib 20 ... Door inner panel 21 ... Bracket 21B ... End part 23 of bracket inside the vehicle interior 23 ... Mounting hole 30 ... pull handle box 32 ... engagement claw 33 ... claw part 34 ... rattle prevention rib

Claims (7)

A vehicle door trim in which a container-shaped pull handle box having an upper opening is attached to an armrest portion formed so as to project to the vehicle interior side,
The pull handle box is fixed to a metal bracket provided on the vehicle interior side surface of the door inner panel,
The lower surface of the pull handle box is provided with an engaging claw that is inserted into and engaged with an attachment hole provided in the bracket,
The vehicle door trim, wherein the pull handle box and the engaging claw are integrally formed of a synthetic resin. The vehicle door trim according to claim 1,
A vehicle door trim, wherein a mounting seat to which the pull handle box can be attached is provided integrally with a wall surface on the vehicle exterior side of a main board constituting the door trim. The vehicle door trim according to claim 1 or 2,
A vehicular door trim characterized in that a claw portion formed on the engaging claw has a shape protruding toward a vehicle interior side. The vehicle door trim according to any one of claims 1 to 3,
The engagement claw is provided with a rattle prevention rib capable of preventing rattling of the engagement claw with respect to the attachment hole by being at least partially crushed when the engagement claw is inserted into the attachment hole. A door trim for a vehicle. The vehicle door trim according to any one of claims 1 to 4,
A vehicle door trim, wherein an end of the bracket on the vehicle interior side is bent upward or downward. The vehicle door trim according to any one of claims 2 to 5,
The mounting seat is provided with an engagement hole into which the engagement claw is inserted and engaged,
A vehicular door trim, wherein a flange portion that is bent downward is provided at a hole edge portion of the engagement hole on the vehicle interior side. The vehicle door trim according to any one of claims 1 to 6,
A vehicle door trim, characterized in that a support rib capable of contacting the side surface of the pull handle box is provided on a wall surface on the vehicle exterior side of the main board constituting the door trim.

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