JPH066123U - Crushable structure for armrest side collision - Google Patents

Abstract

(57) [Summary] [Purpose] To maintain the conventional function of the armrest in a door trim integrally formed with the armrest, and to take safety measures in the event of a side collision. [Structure] In a door trim 1 in which an armrest 3 is integrally molded, a notch groove portion 6 is provided along an armrest molding base 4 on a vehicle outer surface 2a of the door trim 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a side crash crushable structure of an armrest capable of coping with side collision regulation.

[0002]

[Prior art]

 Normally, the integrally formed door trim 11 has an armrest 13 having a narrow width in the vertical direction, and is formed to project from the surface of the door trim 11 to the inside of the vehicle with a depth that allows armresting. In addition, the molding position is set to a height at which the occupant can rest his arm. On the other hand, however, such an armrest 13 may damage an object 20 inside the vehicle when it is impacted from the side of the vehicle, as shown in FIG.

In addition, due to the increasing demand for vehicle safety measures in recent years, the armrest 13 is subject to side impact regulation, and vehicle manufacturers are required to take countermeasures against it. Therefore, conventionally, as shown in FIG. 3B, the shape of the armrest 13 is made large in the vertical direction, and further, the depth projecting inward of the vehicle is made shallow so that the armrest 13 has a planar shape at the time of a side collision. An attempt is made to clear the side impact control by forming it so as to contact the object 20.

[0004]

[Problems to be solved by the device]

 However, by increasing the thickness in the vertical direction in this way, the function as the original armrest 13 becomes larger than necessary, and the installation range for other parts installed in the door trim 11 is limited. To be done. Further, the shallow depth reduces the original function of the armrest member, and also reduces the mounting area of the switches arranged on the upper surface of the armrest 13. As a result, the function or usability of these parts may be impaired. In addition, it may be necessary to change the design of these parts. Particularly, in the case of the armrest 13 integrally formed with the door trim 11, it is necessary to drastically change the molding die, which results in a high cost of changing the shape.

Therefore, in the present invention, in the door trim in which the armrest is integrally formed, while maintaining the conventional function of the armrest, a crushable structure for side collision of the armrest capable of taking safety measures in the event of a side collision. The purpose is to provide.

[0006]

[Means for Solving the Problems]

 As a technical means for solving the above problems, in the present invention, in a door trim in which an armrest is integrally molded, a notch groove is formed along the armrest molding base on the vehicle outer side surface of the door trim. A crushable structure is used.

[0007]

[Action]

 With the above configuration, during a side collision, the door trim base material crashes (fractures) in the notch groove due to a certain amount of impact generated when the armrest integrally molded with the door trim contacts an object inside the vehicle. However, by pushing the armrest in a recessed shape toward the outer side of the vehicle, the portion protruding from the door trim surface can be reduced or eliminated.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 (b) is an enlarged sectional perspective view of an armrest 3 according to the crashable structure for a side collision of the present invention. The armrest 3 is formed integrally with the door trim 1, and is formed so as to protrude a predetermined amount inward in the vehicle with a predetermined length in the vehicle front-rear direction and a predetermined thickness in the vertical direction. That is, the portion corresponding to the armrest 3 has a uniform thickness as a whole and is shaped to have a concave drawing shape.

Therefore, the molded base portion 4 of the armrest 3, that is, the root portion of the armrest 3 is a portion formed by being bent along the outer peripheral shape of the bottom portion of the armrest 3. A notched groove portion 6 that is notched in a substantially triangular shape is formed along the molding base portion 4 on the vehicle outer surface 2a side of the door trim 1.

The notch groove portion 6 is provided as a recess over the entire circumference of the molding base portion 4, and does not completely separate the armrest 3 from the door trim 1. Further, the direction in which the cutout groove portion 6 is provided is substantially perpendicular to the door trim 1 at the bent portion, and there is also a portion that is formed obliquely toward the outer peripheral direction of the door trim 1. The recessed position of the notch groove portion 6 is preferably a portion where distortion is most likely to occur when an impact is applied to the armrest 3, and the molding base portion 4 corresponds to this embodiment.

Further, the thickness of the door trim 1 at the deepest portion of the triangular recess of the cutout groove portion 6 where the door trim 1 is deeply cut has such a strength that the armrest 3 can be held by the door trim 1 in a normal use state. It is a thickness that can be maintained. In addition, when the impact in the vehicle is such that it does not occur in a normal use condition and does not cause serious damage to the object in the vehicle, the armrest at the thinnest part. 3 is the thickness that can be crashed.

Further, the width of the cutout groove portion 6 can maintain the strength of the armrest 3 in a normal use state, and when an impact of a certain amount or more is applied, the armrest 3 crashes and the armrest 3 is located outside the vehicle 2 a of the door trim 1. It is set so that it can be easily pushed down in the direction. That is, the entire structure of the notch groove portion 6 is formed so as to maintain the strength normally required for the armrest 3 and to crash when an impact of a certain amount or more is received.

Next, the operation of the structure of the door trim 1 as described above in the event of a side collision will be described with reference to FIG. When an impact is applied from the outside of the door, that is, from the side of the vehicle (in the direction of the arrow in Fig. 2 (a)), or conversely, when an object inside the vehicle collides with the door trim, the arm rest 3 is normally operated. A large load is applied that cannot occur in use. At this time, the amount of impact that does not seriously damage the object 10 inside the vehicle, and the amount of impact that exceeds the load in normal use conditions causes the door trim 1 to be at the thinnest portion 6a of the cutout groove portion 6. Crashes and the armrest 3 is separated from the door trim 1 (see Fig. 2 (b)). Therefore, the armrest 3 is separated from the door trim 1 before the armrest 3 bites into and damages the object 10 in the vehicle. Further subsequently, the divided armrest 3 is pushed in the vehicle outer direction (the arrow direction in FIG. 2C).

As a result, the armrest 3 that is integrally molded so as to project from the door trim 1 is substantially flush with the surface of the door trim 1 or outside the vehicle (in the direction of the arrow in FIG. 2C) so as not to bite into the object 10. ) Direction and the space between the door and the door trim 1 is immersed. Therefore, the armrest 3 having a narrow width and a large depth does not bite into the object 10 and the safety to the object is ensured in the case of a side collision, and the side collision regulation can be cleared.

Furthermore, since it is not necessary to make the armrest 3 thicker than the original function of the armrest 3 and the depth can be the same as the conventional one, various other parts installed in the door trim 1, such as a switch, can be used. There is no need to change the design of these items, layout of door pockets, etc. Moreover, it is not necessary or necessary to change the mold of the door trim 1.

In addition, in the present embodiment, the notch groove portion 6 is formed continuously over the entire circumference of the molding base portion 4, but the present invention is not limited to this. For example, a plurality of notched groove portions 6 having a predetermined length may be intermittently provided, or a part or all of the notched groove portions 6 may be formed through the door trim 1. That is, the notch groove portion 6 is formed so that the armrest 3 is separated from the door trim 1 by a load that maintains the strength of the door trim 1 required in normal use and does not damage the object 10 in the vehicle. Just do it. Therefore, the shape of the recessed portion of the cutout groove portion 6 is not limited to this embodiment and can be changed to various shapes. Further, if necessary, a plurality of cutout groove portions 6 can be formed in parallel along the molding base portion 4. In this case, the depth and width of one cutout groove portion 6 can be formed to be slightly smaller.

The cutout groove portion 6 may be formed at the same time when the door trim 1 integrally formed with the armrest is formed, or may be formed by cutting out the door trim 1 after the formation.

[0018]

[Effect of device]

 As described above, according to the present invention, the notch groove portion is formed along the molding base portion of the armrest integrally formed with the door trim, so that the armrest is separated from the door trim during a side collision and pushed into the vehicle outside in a recessed manner. Be done. As a result, it is possible to comply with the side impact regulation, and the installation of other parts on the door trim is not restricted in order to comply with the regulation.

[Brief description of drawings]

FIG. 1 is a view showing a combination of a front view of a door trim integrally formed with an armrest and an enlarged cross-sectional perspective view taken along line aa of the front view showing a recessed groove portion of a molding base of the armrest.

FIG. 2 is a diagram showing an operation of a side crash of an armrest having a crashable structure for a side collision.

FIG. 3 is a diagram showing an operation of a conventional armrest during a side collision.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Door trim 2a ... Vehicle outer surface of door trim 3 ... Armrest 4 ... Molding base 6 ... Notch groove

Claims (1)

[Scope of utility model registration request] 1. A crushable structure for a side collision of an armrest in which a notch groove is provided along a base portion of an armrest molding on a vehicle outer side surface of the door trim in a door trim integrally formed with the armrest.