JP6038724B2 - Armrest structure of door trim - Google Patents

Description

  The present invention relates to a door trim that decorates the interior side of a side door such as a front door or rear door of an automobile, and more particularly to an armrest structure that is used by an occupant as an armrest.

  The armrest of the door trim is often divided into an armrest lower provided on the door trim body and an arm restorer attached to the upper end opening in order to assemble a functional part such as a switch unit on the upper surface of the doorrest. ing.

  In such an upper and lower split type armrest, the above-mentioned arm restorer exists as a plate-like structure in a substantially horizontal direction, so that it becomes a tension member in the side collision of the vehicle and becomes the vehicle width direction of the armrest There is a possibility of hindering the crushing deformation.

  Therefore, conventionally, as shown in Patent Document 1 and Patent Document 2, for example, when an external force acts on the armrest in the vehicle width direction at the time of a side collision of the vehicle, the arm restorer can be detached upward from the armrest lower. Is known.

JP 2002-46520 A JP 2008-143416 A

  The disclosed technologies of Patent Document 1 and Patent Document 2 both generate an upward detachment force on the arm restorer against the external force in the vehicle width direction by sliding contact between the upper and lower inclined surfaces provided on the armrest lower and the arm restorer. It is a structure to let you.

  However, in order to bring out the consistency between the inclined surfaces described above, it is undeniable that high molding accuracy is required between the armrest lower and the arm restorer, which is disadvantageous in cost.

  Moreover, since it is not the structure which responds immediately to the deformation | transformation movement to the vehicle interior side of the door inner panel at the time of the side collision of a vehicle, the improvement is calculated | required.

  Therefore, the present invention has a good formability, and further, an armrest of a door trim that can immediately move in response to a deformation movement of the door inner panel toward the vehicle interior side at the time of a side collision of the vehicle, and the armrestper can be detached upward. Provide structure.

  The armrest structure of the door trim according to the present invention includes an armrest lower provided in the door trim body, an arm restorer fixedly detachably attached to an upper end opening of the armrest lower, and an arm restorer that protrudes on the back side of the arm restorer. And a recessed portion for a pull handle provided on the base.

The armrest lower is provided on the inner surface so as to protrude below the recessed portion, and is elastically deformed in the vehicle width direction by receiving a side collision load from the door inner panel. The main feature is that it includes a detaching means that slides in contact with the bottom corners on both sides and flips the arm restorer upward. In this case, the detaching means extends in a horizontal direction from the inner surface of the armrest lower and is connected to the door inner panel, and from the terminal of the stay to a bottom corner portion on the outer side in the vehicle width direction of the recessed portion. A pressure receiving push piece extending obliquely upward in proximity, and an obliquely upward inclined wall that is connected to the stay and is disposed close to the bottom corner portion on the inner side in the vehicle width direction of the recessed portion. Composed.

  According to the present invention, when the door inner panel receives a side collision load from the door inner panel due to the deformation movement of the door inner panel toward the vehicle interior during a side collision of the vehicle or the like, it is elastically deformed in the vehicle width direction.

  As a result, the detaching means comes into sliding contact with the bottom corners on both sides in the vehicle width direction of the recessed portion of the arm restorer, and pushes out the arm restorer upward through the recessed portion.

  As a result, the arm restorer can be released immediately in response to the deformation movement of the door inner panel toward the passenger compartment, improving the crush deformation characteristics of the armrest lower in the vehicle width direction, The protective effect can be enhanced.

  Further, the above-described detachment means does not require high surface alignment between the sliding contact portions, and therefore, the armrest lower and the arm restorer can be easily formed and the cost can be reduced.

The perspective view which shows the door for vehicles provided with the door trim made into the object of this invention. Cross-sectional explanatory drawing which follows the AA line of FIG. 1 which shows one Embodiment of this invention. Cross-sectional explanatory drawing explaining the detachment | leave operation | movement of the arm restorer in FIG. The perspective view which shows the detachment | leave means. Cross-sectional explanatory drawing which shows the modification of a detachment | leave means by (A), (B).

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a rear door of an automobile provided with a door trim that is a subject of the present invention. The door trim 1 covers a door inner panel 21 (see FIG. 2) that constitutes a side surface of a door main body 20 on the passenger compartment side. It is attached.

  The door trim 1 is formed with an armrest 3 projecting in the vehicle longitudinal direction at a height that makes it easy for a seated occupant to put an elbow on the vehicle. To get a good sitting posture.

  The armrest 3 is divided into an upper and lower armrest lower 4 provided on the door trim main body 2 and an arm restorer 5 attached to the upper end opening of the armrest 3 because various switch units 6 are assembled. The switch unit 6 is assembled to the arm restorer 5.

  Each of the armrest lower 4 and the arm restorer 5 is molded with an appropriate synthetic resin material, and the arm restorer 5 formed in a substantially flat plate shape is used for a pull handle that protrudes to the back side as shown in FIG. A recess 7 is provided.

  A plurality of latching claws 8 project from the rear surface of the peripheral edge of the arm restorer 5, and the latching claws 8 are engaged with the peripheral edge of the opening of the armrest lower 4 so as to be detachable.

  On the other hand, the armrest lower 4 is provided on the inner surface so as to protrude below the recessed portion 7 of the arm restorer 5 and is elastically deformed in the vehicle width direction by receiving a side collision load from the door inner panel 21. Detachment means 10 is provided that slidably contacts the outer surface of the bottom corner portion 7a on both sides in the vehicle width direction of the recessed portion 7 and flips the arm restorer 5 upward.

  As shown in FIG. 4, the detaching means 10 includes a stay 11 extending horizontally from the inner surface of the armrest lower 4, and a bottom corner portion 7 a on the outer side in the vehicle width direction of the recessed portion 7 from the end of the stay 11. And a pressure receiving push piece 12 that extends close and obliquely upward.

  The stay 11 protrudes from a substantially box-shaped seat portion 13 generally called a ridge formed on the inner surface of the armrest lower 4.

  One side wall of the seat portion 13 is an inclined wall 14 for a sliding guide that is inclined upward and close to the bottom corner portion 7a on the inner side in the vehicle width direction of the recessed portion 7.

  The bottom corner portion 7a of the recessed portion 7 is provided with a required curvature R in consideration of the moldability at the time of molding, and the above-mentioned pressure receiving push piece 12 and the inclined wall 14 are both opposed bottom corner portions. It extends upward from the R upper toe position of 7a.

  The stay 11 is disposed in the vicinity of the bottom of the recessed portion 7, and a screw insertion hole 11 b is formed in the central portion as a thick portion 11 a where a required coupling strength can be obtained.

  A metal bracket 22 is fastened and fixed to the door inner panel 21 with bolts and nuts 23, and the plate nut portion 22 a and the screw insertion hole 11 b of the stay 11 are collated on the end portion of the bracket 22. The bracket 22 and the stay 11 are fastened by a screw member 24.

  When the door inner panel 21 is deformed and moved to the vehicle interior side due to a side collision or the like of the vehicle, the pressure receiving push piece 12 is elastically deformed inward in the vehicle width direction due to interference with the door inner panel 21 side. The recess 7 is in sliding contact with the bottom corner 7a on the outer side in the vehicle width direction, and serves as a trigger for generating an upward detachment force on the arm restorer 5.

  Therefore, the pressure receiving push piece 12 is inclined so as to be close to the substantially lower half portion of R of the bottom corner portion 7a on the outer side in the vehicle width direction of the recessed portion 7, and the end of the stay 11 of the pressure receiving push piece 12 is arranged. The concave portion 7 is easily lifted up by mutual sliding with the substantially lower half portion of the bottom corner portion 7a by bending deformation inward in the vehicle width direction as a base point.

  In this embodiment, when the intermediate portion of the bracket 22 is spaced apart from the side of the pressure receiving pusher piece 12 and the door inner panel 21 is deformed and moved to the vehicle interior side, the bracket 22 is buckled. It interferes with the pressure receiving push piece 12.

  According to the armrest structure of the present embodiment having the above-described configuration, the door inner panel 21 is deformed and moved to the vehicle interior side at the time of a side collision of the vehicle, and the bracket 22 is buckled and deformed accordingly. 3, the pressure receiving push piece 12 receives this side collision load F and elastically deforms inward in the vehicle width direction as shown in FIG. 3.

  At this time, the pressure receiving pushing piece 12 is in sliding contact with the bottom corner portion 7a on the outer side in the vehicle width direction of the concave portion 7 of the arm restorer 5, and at the same time, the concave portion 7 is pushed inward in the vehicle width direction. The bottom corner portion 7a is in sliding contact with the inclined wall 14 of the corresponding seat portion 13, and a lift-up force that causes the recessed portion 7 to slide upward due to the mutual sliding, that is, a separation force of the arm restorer 5 is generated.

  As a result, the engagement by the locking claw 8 is released, and the arm restorer 5 is flipped upward and detached from the armrest lower 4.

  As a result, the arm restorer 5 can be released immediately in response to the deformation movement of the door inner panel 21 toward the vehicle interior side, and the crushing deformation characteristics of the armrest lower 4 in the vehicle width direction can be improved. Thus, the occupant protection effect by buffering can be enhanced.

  In this embodiment, as described above, the detaching means 10 is provided on the inner surface of the armrest lower 4 and connected to the door inner panel 21 via the bracket 22 as a base, and the recess 10 The pressure receiving push piece 12 and the inclined wall 14 that are inclined upward and close to the bottom corner portions 7a on both sides in the vehicle width direction of the portion 7 are provided.

  That is, when the pressure receiving push piece 12 receives a collision load from the door inner panel 21 that is deformed and moved inward in the vehicle width direction and elastically deforms in the input direction, this acts as a trigger between the pressure receiving push piece 12 and the inclined wall 14. In cooperation, the recessed portion 7 is pushed up to generate an upward detachment force on the arm restorer 5.

  Thereby, the collision input can be reliably and promptly detected at the time of a side collision of the vehicle, and the pushing-up operation of the recessed portion 7, that is, the response operation of detaching the arm restorer 5 from the armrest lower 4 is promptly performed. be able to.

  Further, apart from such a collision response operation performance, a simple structure is provided in which the pressure receiving pushing piece 12 and the inclined wall 14 are connected in series with the stay 11 for connecting and fixing the armrest lower 4 to the door inner panel 21 as a base. Therefore, there is an advantage that the design is easy without requiring a separate dedicated part as the detaching means 10.

  In addition, the pressure receiving push piece 12 and the inclined wall 14 constituting the detaching means 10 and the bottom corner portions 7a on both sides in the vehicle width direction of the recessed portion 7 are separated from each other, and the sliding contact portion is provided as in the prior art. Since high surface alignment with each other is not required, the armrest lower 4 and the arm restorer 5 can be easily formed and the cost can be reduced.

  Furthermore, the above-mentioned stay 11 protrudes from the box-shaped seat portion 13, and sink marks occur around the formation portion of the stay 11 due to the difference in the cooling cycle of the resin material on the surface side of the armrest lower 4 at the time of molding. And good quality can be maintained. In addition, since the inclined wall 14 is formed by effectively using one side wall of the seat portion 13, the pressure-resistant strength of the inclined wall 14 during the pushing-up operation of the recessed portion 7 can be sufficiently ensured. The degree of freedom can be increased.

  FIG. 5 shows a modification of the pressure receiving push piece 12 in the detaching means 10.

  5 (A) and 5 (B), in each case, an easy-bending portion 15 is provided at the connecting portion between the terminal portion of the stay 11 and the pressure receiving push piece 12, and both sides of the pressure receiving push piece 12 in the vehicle width direction are provided. This facilitates the elastic deformation operation.

  (A) In the figure, the notch is provided in the above-described continuous portion to form the easily bent portion 15, and in (B), the thickness of the pressure-receiving push piece 12 is changed from the continuous base to the terminal. As shown in FIG.

  These all ensure the elastic deformation operability centered on the easily bent portion 15 of the pressure receiving push piece 12 and the durable rigidity when the recessed portion 7 is pushed by the thickening of the pressure receiving push piece 12. It is intended to be compatible with.

DESCRIPTION OF SYMBOLS 1 ... Door trim 2 ... Door trim main body 3 ... Armrest 4 ... Armrest lower 5 ... Arm restorer 7 ... Recessed part 10 ... Detachment means 11 ... Stay 12 ... Pressure receiving pushing piece 13 ... Seat part 14 ... Inclined wall 21 ... Door inner panel 22 ... bracket

Claims (3)

An armrest lower on the door trim body,
An arm restorer fixedly attached to the upper end opening of the armrest lower so as to be detachable in the vertical direction;
The arm restorer includes a recess for a pull handle provided so as to protrude on the back side of the arm restorer,
The armrest lower is provided on the inner surface so as to protrude below the recessed portion, and is elastically deformed in the vehicle width direction by receiving a side collision load from the door inner panel, so that both sides of the recessed portion in the vehicle width direction are provided. A slidable contact with the bottom corner, and a release means for flipping the arm restorer upward ,
The detaching means is
A stay extending horizontally from the inner surface of the armrest lower and connected to the door inner panel;
A pressure receiving push piece extending obliquely upward in the vicinity of the bottom corner portion on the vehicle width direction outside of the recessed portion from the terminal of the stay;
An obliquely upward inclined wall that is connected to the stay and is disposed close to the bottom corner portion on the inner side in the vehicle width direction of the recessed portion,
A door trim armrest structure characterized by comprising The stay is connected and fixed to a bracket below the recessed portion, and is connected to the door inner panel via the bracket .
The pressure pressing piece is elastically deformed inward in the vehicle width direction by receiving a collision load from the door inner panel to deform moved inwardly in the vehicle width direction, and in sliding contact with the bottom corner portion of the vehicle width direction outer side,
Armrest structure of the door trim according to claim 1, wherein said by the cooperation of the pressure-receiving pressing piece and said inclined wall, and pushes the concave portion and capable of generating an upward withdrawal force to the armrest upper. The said stay is protrudingly provided in the substantially box-shaped seat part formed in the inner surface of the said armrest lower, The one side wall of this seat part was made into the said inclination wall, The Claim 1 or 2 characterized by the above-mentioned. Door trim armrest structure.

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