JPS6198652A - Bumper structure - Google Patents

Abstract

PURPOSE:To reduce waving of crosspiece by forming the crosspiece and finisher of bumper armature integrally with synthetic resin harder than the skin. CONSTITUTION:Bumper armature 1 is mounted with resin skin 9 molded with soft synthetic resin and an outer air take-in port 11 is made through the skin 9. Said port 11 and an opening 7 are communicated through a finisher 13 to form a vent 15. Said finisher 13 is formed with harder synthetic resin than the skin 9 while a crosspiece 17 is formed integrally with same material along lateral direction.

Description

[Detailed Description of the Invention] [Ten Fields of Industry] This invention relates to the bumper structure of L-cars.

[Prior Art] Conventionally, some bumpers for automatic transmissions have a structure that, in addition to the bumper's original function, allows outside air to be taken into the engine room.

For example, as shown in Figures 4 and 5, a bumper that also takes in outside air is recommended. is formed into a box-like cross section at the imp 103 and outer 105, and extends from the center to both sides.
An opening 1°7 is provided which passes through the front and back. A resin skin 111 that covers the outside air intake port 109 on the right side is attached to the entire surface of the Pampa Amachi+7101, and a modeling crosspiece 113 that is long in the narrow width direction is provided on the outside air intake port 109.

On the other hand, the outside air intake port 109 and the opening 107 are
115, which allows outside air to flow backwards. A5, 117 in the figure is an impact energy absorption moon.

An example of such a structure is Nirasan Service Shusai No. 491.3 [Problems to be Solved by the Invention] The resilient collision absorbing type resin skin 111 is made of a soft synthetic resin material, For example, it is molded from a material such as urethane, and the modeling crosspiece 113 is integrated with the resin skin 111.
There is. This resin skin 111 is generally molded into a mold.
In order to form C', the span of the crosspiece 11J for modeling has to be made larger. When exposed to heat, waves 4) are likely to occur and the appearance quality will be affected (...
I didn't like it.

For this reason, by reducing the diameter of the outside air intake port, it is possible to eliminate the culm problem described in item (1), but on the other hand, there is a restriction on the outside air intake (h).

In this case, this invention (461
The purpose is to provide a barrier structure that is good in terms of appearance quality as well, without being limited by the outside air intake.

Means for Solving Problem 4] In order to achieve the above-mentioned object, in this invention, an opening that is connected to a mid-rest strength member and penetrates from the front and back is connected to the right-hand side.
a bumper armature; a resin skin attached to the entire surface of the armature and having an outside air intake; a finisher provided in the ventilation passage connecting the outside air intake and the opening to form a ventilation passage; In this structure, the crosspiece and the finisher 1 are integrally molded, and the crosspiece and the finisher are made of a synthetic resin material that is harder than the skin. In a preferred embodiment, one end of the finish 11 is connected to an outside air intake port, and the other end is fitted and supported within the opening.

[Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings of FIGS. 1 to 3.

In the figure, 1 is a pampa-ama f1 connected to a vehicle body strength member (not shown) directly or via a pampasdy.
? The armature 1 has an inner 3 and an outer 5
It is formed into a box-like cross-section at each end, and an opening 7 is provided extending from the center to both sides with an opening extending from front to back (in the left-right direction in FIG. 2).

-3= A resin skin 9 made of a soft synthetic resin material such as urethane is attached to the pamba armature 1, and the skin 9 is provided with an outside air intake port 11 that faces the opening 7. It is being taken.

The outside air intake port 11 and the opening 7 are communicated through a fitting 13, thereby forming a ventilation path 15 through which outside air flows from the front to the rear.

The finisher 13 is molded from a synthetic resin material harder than the skin 9, such as polypropylene, and one end is fitted into the outside air intake port 11, and the other end is fitted and supported in the opening 7. .

On the other hand, the finisher 13 is integrally formed with a shaping crosspiece 17 made of the same material as the finisher 113 and extending along the vehicle width direction.

A. Reference numeral 19 indicates an impact T energy absorbing material filled in the inner space of the resin skin 11.

In the bumper configured in this manner, outside air flows from the outside air intake port 11 to the opening 7 at a rate of 1 to 0. In addition, when an external force is applied to the resin skin 9 during a collision, the skin 9 deforms and the end!/13 retreats (dashed line in Figure 2), resulting in the collision energy absorption characteristics of the resin skin 9 and one impact absorbing material. I try not to disturb it.

In addition, the corrugated nails on the crosspiece 17 due to the influence of heat are suppressed to a small size, and the finisher 13 is molded 1 as shown in FIG.
Since there are no problems, it is possible to reduce the incidence of molding defects.

[Effects of the Invention] As described above, the present invention provides the following effects.

(a) Since the corrugated holes in the crosspiece can be made as small as possible, the appearance quality is not impaired.

(b) The molding defect rate of the crosspiece can be reduced.

(C) Since the influence of the corrugated nails on the crosspieces is small, it is possible to enlarge the ventilation passage, and there is no restriction on the intake of outside air.

[Brief explanation of drawings]

FIG. 1 is a front view of an automobile equipped with the bumper of this invention.
Fig. 2 is a cross-sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is a perspective view of the Finnishiki, Fig. 4 is a sectional view similar to Fig. 2 showing the conventional example, and Fig. 5 is a 91 This is an iE view of ゜Pretty Person I. Explanation of main drawing symbols 1... Pambaamaja 7... Part 1 9... Resin skin 11... Outside air intake [1 13...・Noinichi V) 15... Ventilation passage 17... Crosspiece Fig. 1 Fig. 9-1 Non-gt Old - External direct X entrance Fig. 2 Fig. 3 Fig. 4 Fig. 5

Claims (2)

[Claims] (1) A bumper armature that is connected to a strength member of the vehicle body and has an opening penetrating the front and back, a resin skin that is attached to the entire surface of the armature and has an outside air intake port, and a ventilation passage that connects the outside air intake port and the opening. a finisher forming a
In the structure consisting of a crosspiece provided in the ventilation passage and extending in the vehicle width direction, the crosspiece and the finisher are integrally molded, and the crosspiece and the finisher are made of a synthetic resin material that is harder than the skin. Bumper structure. (2) The bumper structure according to claim 1, wherein one end of the finisher is connected to an outside air intake port, and the other end is fitted and supported within the opening.