JPH0858374A - Energy absorbing pocket for vehicle - Google Patents

Abstract

PURPOSE: To enable a vehicle absorb an energy from sideward by a simple constitution without making a dead space inside a door of the vehicle. CONSTITUTION: Relating to a pocket for a vehicle constituting the pocket 3, opening an upper part to close respectively both side parts, bottom part and a front part, in a door trim 2 by mounting the pocket on an in door side of the door trim 2 of a vehicle, both the side parts of the pocket 3, its bottom part and front part are formed into a flexible wall structure 4 by a resin, also to bury a series of elastically distortable thin plates 7 in the wall structure 4 in both the side parts and in the front part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an energy absorbing pocket for a vehicle, which mainly absorbs energy of side impact.

[0002]

2. Description of the Related Art As one of safety measures for passengers against side collisions, there is a vehicle door structure in which a collision energy absorption pad for absorbing collision energy is incorporated. Figure 5
As shown in FIG. 6 and FIG. 6, the conventionally used collision energy absorbing pad 101 is a door trim board 102 inside the vehicle.
It is sandwiched between the door inner panel 103 and the door inner panel 103 at a position where the chest and waist contact, and is fixed to the door trim board 102 side with a dedicated hot melt 104 or the like. The collision energy absorption pad 101 itself is configured as a block body made of open-cell foam resin such as hard urethane foam.

The collision energy absorption pad 101 compresses the collision energy applied to the side surface from the outside of the door, elastically deforms including elastic deflection to absorb the collision energy, and absorbs the collision energy from the side of the passenger inside the door. Protects from the impact of a collision. The improvement of the collision energy absorption / relaxation function is achieved by increasing the thickness or densifying the collision energy absorption pad 101.

In the conventional collision energy absorbing pad 101 for a vehicle as described above, the absorption and relaxation of the collision energy basically depends on the elastic deformation of the collision energy absorbing pad 101 itself. Therefore, in order to obtain a satisfactory absorption / relaxation function, it is necessary to have a certain thickness and a high density. However, in order to cope with the increase in the thickness of the collision energy absorption pad 101, the amount of protrusion to the inside of the vehicle must be increased, so the interior space of the vehicle must be sacrificed, and in the case of high density, the weight becomes heavy. There is a problem that it conflicts with the demand for weight reduction of vehicles. Further, the collision energy absorbing pad 101 itself is quite expensive, and the dedicated hot melt is also expensive, so that the cost is high.

[0005]

Therefore, the present invention has been made to solve the above-mentioned conventional problems, and the object of the present invention is to create a dead space in a vehicle.
An object is to obtain a vehicle energy absorption pocket that can absorb energy from the side with a simple structure.

[0006]

In order to achieve the above object, the invention according to claim 1 is mounted on the interior side of a door of a vehicle so that an upper part of the door is opened and both side parts, a bottom part and a front part are opened. Is a vehicle pocket that constitutes a closed pocket, and both sides, bottom, and front portion of the pocket have a flexible wall structure made of resin, and elastic flexure occurs in both side portions and the front wall structure. The method of embedding a series of possible thin plates is adopted.

In order to achieve the above object, the invention of claim 2 is to install a pocket in which an upper part is opened and both side parts, a bottom part and a front part are closed by mounting the door on the inside of a vehicle door. A constituent vehicle pocket,
The side and bottom portions and the front portion of the pocket have a flexible wall structure made of resin, and a series of elastically flexible thin plates are embedded in the front and bottom wall structures.

In order to achieve the above object, the invention of claim 3 forms a corrugated thin plate embedded in the wall structure of both sides of the means according to claim 1, and the wall structure of the part has a bellows structure. Adopt the means.

[0009]

According to the above-mentioned means, the energy from the side such as the collision energy is generated by the elastic deformation of the thin plate of the wall structure on both sides and the elastic deformation of the thin plate of the front wall structure. It is absorbed by crushing. This pocket usually projects inside the car but holds the storage space,
No dead space is created.

According to the above-mentioned means, the energy from the side such as the collision energy is absorbed by the collapsing of the pocket accompanied by the elastic deformation of the thin plate in the wall structure extending from the front part to the bottom part. This pocket normally projects inside the car but holds the storage space and does not create a dead space.

According to the third aspect of the present invention, in addition to the action of the first aspect, the direction in which the pocket is crushed due to the elastic deformation of the thin plate is made uniform, and the restoration of the shape of the pocket is improved.

[0012]

【Example】

Embodiment 1 Next, an embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1, 2 and 3, the energy absorbing pocket 1 for a vehicle is attached to a door trim 2 that constitutes the inside of a vehicle door structure, and a pocket 3 is formed on the inside surface of the door trim 2. To do. That is, the energy absorption pocket 1 is integrally made of resin that constitutes the pocket 3 in which the mounting side of the door trim 2 is completely opened, the upper side thereof is opened by mounting the door trim 2 and both side portions, the bottom portion and the front portion are closed. It is a molded product. A flexible wall structure 4 is provided on both sides, bottom and front of the pocket 3.
A series of spring-shaped thin plates 7 made of spring steel, in which the left and right flanges 5 are connected to the front web 6, are formed by insert molding in the wall structure 4 on both sides and the front. Has been done. Since the pocket 3 of this example is divided into left and right structures by providing partitions, the thin plate 7 has a series of elastically flexible deformable parts that are pre-connected in the wall structure 4 on both sides of the pocket 3, the partition part, and the front part. It is buried as spring steel.

The thin plate 7 may have a simple U-shape in which the left and right flange portions 5 are connected by the front web portion 6, but since it is difficult to obtain the direction of elastic deformation due to the elastic deflection of the flange portion 5, FIG. As shown in FIG. 5, a vertical wave structure 8 is formed on the left and right flange portions 5 and formed in a corrugated shape, and the wall structure 4 in this portion has a bellows structure. As a result, the direction in which the flange portion 5 elastically deforms with respect to the load applied to the web portion 6 is defined.

The energy absorbing pocket 1 itself is mounted on the door trim 2 by fixing a flange 9 formed at the mounting side end to the door trim 2 using a fastening means such as a screw or a clip. Note that reference numeral 10 in the drawing denotes an armrest portion formed on the door trim 2.

The energy absorbing pocket 1 for a vehicle constitutes a door pocket when applied to a vehicle, and creates a storage space without making the relevant portion a dead space. For example, collision energy is applied to the door structure from the outer side of the vehicle toward the inner side of the vehicle due to a side collision or the like, and the pocket 3 is applied to the passenger's body.
When the front portion of the thin plate 7 hits, the wall structure 4 of the front portion is deformed with the elastic deformation of the web portion 6 of the embedded thin plate 7, and the flange portions 5 of the thin plate 7 are almost simultaneously formed with the wave structure 8 thereof. Elastically deforms so as to buckle, the entire pocket 3 is crushed, and the collision energy is absorbed. When the flange portion 5 has a flat plate shape, the crushing direction of the pocket 3 is not uniform from time to time, but the impact energy can be absorbed. When the external force is removed, the pocket 3 thus crushed is restored to its original form by the elastic restoring action of the thin plate 7. That is, this vehicle energy absorption pocket 1 can perform the function of absorbing and mitigating the collision energy and the like from the side without sacrificing the space inside the vehicle, so that the luggage cannot be accommodated well when loaded. Sometimes the pocket 3 can be crushed to create a space.

Embodiment 2 Next, another embodiment of the present invention will be described with reference to FIG. As shown in FIG. 4, the vehicle energy absorbing pocket 1 of this embodiment is obtained by embedding the thin plate 7 of the above-described embodiment 1 over the front and bottom wall structures 4, and the other configurations are the same as those of the embodiment 1. Is the same as Therefore, the description of the same parts as those of the first embodiment will be omitted by assigning common reference numerals to the drawings.

The application to a vehicle is the same as that of the first embodiment. In this energy absorbing pocket 1 for a vehicle, the front and bottom wall structures 4 are provided with a door trim 2 against a side impact.
Energy is absorbed by elastically deforming the side, and the function is almost the same as that of the first embodiment. However, since the thin plate 7 has a simple shape, the molding is simple and the cost is low. Is reduced.

[0018]

As is apparent from the above description of the embodiments, according to the invention of claim 1, the energy from the side can be absorbed with a simple structure without creating a dead space in the vehicle.

According to the second aspect of the present invention, energy from the side can be absorbed with a simple structure without forming a dead space in the vehicle, and the thin plate can be easily formed.

According to the invention of claim 3, in addition to the effect of claim 1, the direction in which the pocket is crushed due to the elastic deformation of the thin plate is made uniform, and the restoration of the shape of the pocket is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a vehicle door structure of an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line AA in FIG.

FIG. 3 is an enlarged perspective view showing a structure of an arrow B portion in FIG.

FIG. 4 is a sectional view showing a vehicle door structure of another embodiment of the present invention.

FIG. 5 is a perspective view of a vehicle door portion showing a conventional collision energy absorbing pad.

FIG. 6 is a perspective view including a cross section of a vehicle door portion showing a conventional collision energy absorbing pad.

[Explanation of symbols]

 1 Energy absorption pocket 3 Pocket 4 Wall structure 7 Thin plate 8 Wave structure

Claims (3)

[Claims] 1. A vehicle pocket, which comprises a pocket having an upper part opened and a side part, a bottom part, and a front part closed by being mounted on the interior side of a door of a vehicle. Energy absorption for vehicles, characterized in that both sides, bottom and front are made of a flexible wall structure made of resin, and a series of elastically flexible thin plates are embedded in both sides and the front wall structure. pocket. 2. A vehicle pocket, which comprises a pocket having an upper part opened and two side parts, a bottom part and a front part closed by being mounted on the interior side of a door of a vehicle. An energy absorbing pocket for a vehicle, characterized in that both side portions, a bottom portion and a front portion are made of a flexible wall structure made of resin, and a series of elastically flexible thin plates are embedded in the front and bottom wall structures. . 3. The energy absorbing pocket for a vehicle according to claim 1, wherein the thin plates embedded in the wall structure on both sides of the pocket are formed in a corrugated shape, and the wall structure of the part is a bellows structure. Energy absorption pocket for vehicles.