JPH0678035U - Energy absorption structure of door trim - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an energy absorbing structure for a door trim capable of sufficiently responding to a side collision while suppressing an increase in cost as much as possible. [Structure] In a backing member (7) forming an inner wall portion (8) of a lower pocket portion of an armrest portion (3) convex toward a vehicle compartment, a shock absorbing rib intersecting with a door panel (15) side along a rear side of the armrest portion (3). 10 is provided integrally.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an energy absorbing structure for a door trim capable of absorbing a side impact of a vehicle.

[0002]

[Prior art]

 Normally, the door trim 21 partially has a convex portion 22 on the inside of the vehicle in view of the design of the interior or the functional viewpoint such as an armrest (see FIG. 4).

Further, an outer wall 23 of a door pocket is often integrally provided below such a convex portion 22, and in this case, a portion corresponding to an inner wall of the pocket is constituted by a backing member 25. There is.

However, such a convex portion 22 may damage an object inside the vehicle, especially when an impact is applied from the lateral outside of the vehicle. For this reason, as shown in FIG. 4B, the side impact shock absorbing pad 24 made of hard urethane or the like is adhered to the door panel 35 side of the convex portion 22. As a result, the impact from the outside of the vehicle can be absorbed and buffered by the pad 24 to reduce the influence on the inside of the vehicle.

[0005]

[Problems to be solved by the device]

 However, if not only the backing member 25 but also the pad 24 is separately attached to the door trim 21, the addition of a new material such as the pad 24 and the adhesive and the labor for attaching these will be significantly increased. Therefore, the work efficiency of the entire manufacturing process of the door trim 21 is reduced, leading to an increase in cost.

Therefore, it is an object of the present invention to provide an energy absorbing structure for a door trim that can sufficiently cope with a side collision while suppressing an increase in cost as much as possible.

[0007]

[Means for Solving the Problems]

 According to the present invention, as a technical means for solving the above-mentioned problems, in a backing member that constitutes an inner wall portion of a pocket portion on the lower side of a convex armrest portion on the vehicle compartment side, a door panel is provided along a rear side of the armrest portion. The means is an energy absorption structure of a door trim having a structure in which a cross-shaped impact absorption rib is integrally provided on the side.

[0008]

[Action]

 With the above configuration, the impact absorbing ribs that are integrally formed with the backing member that is attached to form the inner wall of the pocket of the door trim can absorb and disperse the impact of side impact while deforming or crushing. As a result, the impact of the armrest portion on the vehicle can be reduced and the safety of objects inside the vehicle can be secured.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a cross-sectional structure of a door trim 1 of the present invention, and FIG. 2 shows an overall appearance of the door trim 1. The door trim 1 is formed integrally with a wooden base material or a synthetic resin as in the conventional case, such as an armrest portion 3 and a pocket outer wall 5 having a convex portion inside the vehicle.

The armrest portion 3 is provided substantially in the center of the door trim 1 along the vehicle front-rear direction, and the pocket outer wall 5 is also provided so as to project downward along the armrest portion 3. The armrest portion 3 and the pocket outer wall 5 are integrally formed, but open from the lower side of the armrest portion 3 to the portion corresponding to the inner wall of the pocket, and the synthetic resin is formed so as to close the opening portion 4. The backing member 7 formed by is attached.

As in the conventional case, the backing member 7 constitutes the armrest support 7 and the pocket inner wall 8 that shield the opening 4 of the door trim 1 and shield the lower side of the armrest, as shown in FIG. It is attached to the door trim 1. That is, the pocket inner wall portion 8 is provided so as to shield the door outer wall 5 formed integrally with the door trim 1 from the door panel 1 side. Then, the lower end edge of the inner wall portion 8 is fixed near the base portion of the pocket outer wall 5 with screws or the like, and is attached to the door trim 1 so as to open a predetermined distance from the pocket outer wall 5.

The support portion 9 of the armrest is formed so as to extend from the pocket inner wall portion 8 toward the armrest portion 3 side while bending. The armrest portion 3 is shielded from below and supports the armrest portion 3, and is further bent and extended so as to line the side surface portion of the armrest portion 3. The support portion 9 and the rear side surface of the armrest portion 3 are attached to each other. An impact absorbing rib 10 as shown in FIG. 3 is formed on the armrest support portion 9. The impact absorbing rib 10 is formed of a vertical wall 11 and a horizontal plate 12.

The vertical wall 11 has a size corresponding to the cross-sectional shape of the space on the back side of the armrest portion 3 formed by the upper surface of the armrest portion 3 and the armrest support portion 9, and has a substantially rectangular plate shape with a predetermined thickness. A plurality of them are formed and arranged side by side along the vehicle front-rear direction at a predetermined interval. In this way, the vertical wall 11 is provided along the armrest support portion 9 for the entire back side of the armrest portion 3. A horizontal plate 12 having a predetermined thickness is bridged between the individual vertical walls 12 in a substantially horizontal plane in the left-right direction.

The horizontal plate 12 is provided along the end portion of the vertical wall 11 on the door panel 15 side and so as to vertically cross each of the spaces partitioned by the vertical wall 11. In this manner, the vertical wall 11 and the horizontal plate 12 are formed in a substantially lattice shape to form the shock absorbing rib 10. The lateral walls 12 do not necessarily have to be formed in the same plane.

The energy absorbing action at the time of a side collision by the door trim 1 thus formed will be described. When the side of the vehicle, that is, the door panel 15 is impacted, the door panel 15 is deformed to the inside of the vehicle. The impact of the deformed door panel 15 is transmitted to the impact absorbing rib 10 formed of the vertical wall 11 and the horizontal plate 12 of the armrest support portion 9 of the backing member 7 on the door trim 1 side, and the rib 10 is crushed. As a result, the crushed rib 10 absorbs impacts on the entire rib 10 by the vertical wall 11 and the horizontal plate 12, that is, the entire armrest portion 3 and does not cause the armrest portion 3 to project to the vehicle interior side. Objects in the room are protected. The reason why the armrest portion 3 does not project in this way is that a plurality of vertical walls 11 are formed over the length thereof along the installation direction of the armrest portion 3 and are reinforced by the horizontal plate 12 while partially This is because the impact received by the vertical wall 11 and the horizontal plate 12 can be dispersed by being transmitted by the horizontal plate 12 to the vertical walls 11 on both sides thereof.

As described above, on the door panel 15 side of the armrest portion 3, the armrest portion 3 and a separate backing member 7 shield the door trim 1, and at the same time, the armrest support portion 9 of the backing member 7 is provided with the shock absorbing ribs 10. As a result, the energy of the side impact can be absorbed without attaching the absorption pad. That is, only by attaching the backing member 7, it is possible to provide a structure capable of coping with a side impact. For this reason, it is possible to reduce the number of parts by omitting the labor required for attaching the conventional shock absorbing pad. Further, according to this example, the side trim even in the door trim 1 mainly made of a wooden base material is applied to the door trim 1 made of a wooden base material by applying the backing member 7 integrally formed of synthetic resin. To be able to deal with the situation.

Although the backing member 7 that constitutes the pocket of the door trim 1 has been described in this example, the present invention is not limited to this, and the backing of the armrest portion 3 is provided around the armrest portion 3. Anything that can be lined will do. The vertical wall 10 and the horizontal plate 11 of the shock absorbing rib 9 have individual shapes and combination states, the number of sheets, and materials selected so as to have strength enough to absorb the impact at the time of a side impact. can do. Further, the foam molding base material can be integrally molded in the space partitioned by such ribs 10. In this case, the energy of the side impact will be further buffered and absorbed.

[0018]

[Effect of device]

 As described above, according to the present invention, the backing member attached to form the inner wall portion of the pocket of the door trim on the back side of the armrest portion of the door trim is integrally provided with the shock absorbing rib formed of the vertical wall and the horizontal plate. As a result, the energy absorbing structure at the time of a side impact can be easily and reliably applied to the armrest portion, and at the same time, the process can be simplified.

[Brief description of drawings]

FIG. 1 is a view showing a sectional structure of a door trim of the present invention.

FIG. 2 is a perspective view of a door trim.

FIG. 3 is a perspective view of an armrest constituting portion of the backing member.

FIG. 4 is a view in which a perspective view of a conventional door trim and a view showing a sectional structure thereof are combined.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Door trim 3 ... Armrest part 7 ... Lining member 8 ... Inner wall part 10 ... Impact absorption rib 15 ... Door panel

Claims (1)

[Scope of utility model registration request] 1. A backing member that constitutes an inner wall portion of a pocket portion on the lower side of an armrest portion that is convex toward the passenger compartment, and a cross-shaped impact absorbing rib is integrally provided on the door panel side along the back side of the armrest portion. Energy absorption structure of the configured door trim.