JPH092178A - Shock absorbing structure of automobile interior member - Google Patents

Abstract

PURPOSE: To provide excellent shock absorptivity by providing a shock dispersing plate, formed of a material more rigid than a shock absorbing rib body, and arranged on the surface member side of the shock absorbing rib body. CONSTITUTION: Shock absorbing structure of a globe box is structured in such a manner that a shock dispersing plate 21 and a shock absorbing rib body 31 are arranged on the back side of a surface member 11 of which a cover consists. The shock dispersing plate 21 is served to disperse a shock and apply the shock on the whole of the shock absorbing rib body 31, and adhered to the surface of the shock absorbing rib body 31. It is preferable that the shock dispersion plate 21 is formed of a material more rigid than the shock absorbing rib body 31 and not easily deformed by collision of a passenger during occurrence of car clash. Plastic, such as fiber-reinforced plastic and a polycarbonate, and a metal, such as iron or aluminum, are listed as the material. Further, it is desirable that thickness is set to a value enough to prevent deformation owing to collision of a passenger during the occurrence of car clash.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorbing structure for an automobile interior member.

[0002]

2. Description of the Related Art An automobile glove box 7 shown in FIG.
Some vehicle interior members such as 1 or a knee protector (not shown) have a shock absorbing structure to protect an occupant in the event of a collision. Reference numeral 72 is a surface member that serves as a lid of the glove box, and 73 is an inner case of the glove box.

As a shock absorbing structure for the automobile interior member, a surface member 7 such as a glove box shown in FIG.
It is proposed that the shock absorbing rib body 74 is arranged on the back surface of the 2 (lid). In this shock absorbing structure, as shown in FIG. 7, a part of the occupant's body 75 is provided on the front side of the surface member 72.
When the collision occurs, the ribs 76 are pushed and bent and deformed to absorb the shock.

[0004]

By the way, at the time of the collision, the body of the occupant usually collides with a part of the interior member of the automobile. In addition, the impact absorbing rib body 74 is formed of a material that is easily deformed by impact, and the surface member 72 of the automobile interior member is often made relatively soft from the viewpoint of the feel and the like. As described above, only the portion corresponding to the collision site and its vicinity deform to absorb the impact, and the portion away from the collision site may not be deformed. Further, the collision site, the impact direction, etc. are not constant, it is difficult to predict the collision state in advance to form the ribs, and there is a problem that the impact absorbency is not constant.

Therefore, the present invention solves the above problems,
It is an object of the present invention to provide a shock absorbing structure for an automobile interior member that exhibits excellent shock absorbing properties.

[0006]

According to the present invention, there is provided a shock absorbing structure in which a shock absorbing rib body is arranged on a back surface of a front surface member of an automobile interior member. An impact dispersion plate made of a material harder than the rib body is provided.

[0007]

When an impact that pushes a part of the surface is applied to the surface member of the automobile interior member, the impact is applied to the impact dispersion plate through the surface member, and further the impact absorption rib body is applied through the impact dispersion plate. The shock is transmitted. At this time, since the impact dispersion plate is made of a material harder than the impact absorption rib body and is not easily deformed, the impact is dispersed on the entire impact dispersion plate, and the entire impact dispersion plate pushes the impact absorption rib body. As a result, the entire shock absorbing rib body receives a shock, and the shock is efficiently absorbed.

Further, when the impact dispersion plate and the impact absorption rib body are bonded or integrally formed, the impact applied to the impact dispersion plate is directly transmitted to the impact absorption rib body, so that the impact absorption rib body is formed. The impact absorbency is improved. Even when the shock absorbing rib body is composed of a substrate and ribs provided upright on the back surface of the substrate and the shock dispersing plate is embedded in the substrate, the shock dispersing plate and the shock absorbing rib body are bonded and integrally molded. The same effect as in the case of is obtained.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. 1 is a sectional view of a main part of a glove box having a shock absorbing structure according to the present invention, FIG. 2 is an enlarged sectional view showing a shock absorbing state thereof, and FIG. 3 is a sectional view of a main part of a glove box according to another embodiment. 4 is a cross-sectional view of a main part of a glove box according to another embodiment.

The glove box shock absorbing structure shown in FIG. 1 has a structure in which a shock dispersing plate 21 and a shock absorbing rib body 31 are arranged on the back surface side of a surface member 11 constituting a lid.
Reference numeral 41 is an inner case.

The surface member 11 constituting the lid has various materials such as a hard plastic base material on which a surface skin made of a plastic sheet or the like is laminated, or a foam material interposed between the base material and the surface skin. It is said that The surface member 11 is a shock absorbing rib body 31 or an inner case 41.
It is attached to or by fixing means such as bolts (not shown).

The impact dispersion plate 21 is for adhering the impact to the entire impact absorbing rib body 31 by dispersing the impact and is adhered to the surface of the impact absorbing rib body 31. It is preferable that the impact dispersion plate 21 is made of a material harder than the impact absorption rib body 31 and is not easily deformed by a collision of an occupant during a vehicle collision. As its material,
Examples thereof include fiber reinforced plastics, plastics such as polycarbonate, and metals such as iron and aluminum. In addition, it is preferable that the thickness is such that it is not deformed due to the collision of an occupant during a vehicle collision. As an example of the impact dispersion plate 21 made of the plastic, a thickness of 2.5
mm, flexural modulus 20000 kg / cm ² , Izod impact strength 20 kg · cm / cm, made of inorganic-added polypropylene, or thickness 2.5 mm, flexural modulus 22000 kg / cm ² , Izod impact strength 85 k
The thing which consists of polycarbonate of g * cm / cm is mentioned. It is preferable that the size is substantially equal to that of the substrate 32 of the shock absorbing rib body 31 described later so that the shock is transmitted to all the ribs 33 of the shock absorbing rib body 31.

The impact dispersion plate 21 of this embodiment may be disposed between the impact absorbing rib body 31 and the surface member 11, or may be adhered or integrated with the back surface of the surface member 11. As in this embodiment, it is preferable that it is adhered to the shock absorbing rib body 31, as will be described later, integrally molded on the surface of the shock absorbing rib body, or embedded in the shock absorbing rib body. The adhesion is performed by a known adhesion means such as a hot melt adhesive or an adhesive tape.

The shock absorbing rib body 31 is made of plastic and comprises a substrate 32 and ribs 33 provided upright on the rear surface thereof. The impact absorbing rib body 31 is arranged with the substrate 32 on the rear surface side of the surface member 11, and the ribs 33 are bent. Absorbs shock by deformation.
The impact absorbing rib body 31 is made of a material in which the rib 33 is easily bent and deformed by an impact applied to the surface member 11. In this embodiment, the bending elastic modulus is 6000 kg / cm ^{2 and is made} of polypropylene.
Has a thickness of 1.0 mm. Although the shock absorbing rib body 31 of this embodiment is sandwiched between the surface member 11 and the inner case 41, it may be fixed to the inner case 41 by a mounting means such as a hook.

The inner case 41 is used as an article storage section and has a container shape with an opening 42 at the top. The inner case 41 is fixed to a part of the vehicle body.

In the glove box having the above structure, when a shock is applied to the surface member 11 forming the lid of the glove box, a shock is applied to the rib 33 of the shock absorbing rib body 31 through the hard shock dispersion plate 21 on the back side of the surface member 11. , Thereby the rib 33
Bends and deforms to absorb the shock. At that time, as shown in FIG. 2, even if a shock is applied to a part of the surface member 11, the shock is dispersed over the shock dispersion plate 21 and the shock dispersion plate 2
Since the shock absorbing rib body 31 that is in contact with 1 is transmitted to the entire substrate 32 and all the ribs 33 on the back surface of the substrate 32 can absorb the shock, an excellent shock absorbing effect can be obtained. Reference numeral 43 is a part of the body.

In the glove box of another embodiment shown in FIG. 3, the impact dispersion plate 51 is replaced with the substrate 53 of the impact absorption rib body 52.
It is molded integrally on the surface of. That is, the impact absorbing rib body 52 is formed by injection molding or the like using a mold in which the impact dispersion plate 51 is arranged as an insert. 54
Is a rib, 55 is a surface member forming a lid, and 56 is an inner case.

A glove box according to still another embodiment shown in FIG. 4 has an impact dispersion plate 5 formed by known sandwich molding.
7 is embedded in the substrate 59 of the shock absorbing rib body 58. Reference numeral 60 is a rib, 61 is a surface member constituting a lid, and 62 is a surface member.
Is the inner case.

Although an example of a glove box has been shown above, the shock absorbing structure of the present invention is not limited to a glove box, but is applied to various automobile interior members such as instrument panels, knee protectors, door trims, armrests and the like. It is a thing.

[0020]

As shown and described above, according to the shock absorbing structure of the present invention, even when a shock is applied to a part of the surface member of the automobile interior member, the shock absorbing rib body as a whole absorbs the shock. It can be absorbed and is always stable, and an excellent shock absorbing effect can be obtained.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of a glove box having a shock absorbing structure according to the present invention.

FIG. 2 is an enlarged cross-sectional view showing the impact absorption.

FIG. 3 is a sectional view of a main part of a glove box according to another embodiment.

FIG. 4 is a sectional view of a main part of a glove box according to another embodiment.

FIG. 5 is a perspective view showing an example of a glove box.

FIG. 6 is a cross-sectional view of a glove box having a conventional shock absorbing structure.

FIG. 7 is an enlarged cross-sectional view showing shock absorption by a conventional shock absorption structure. It is.

[Explanation of symbols]

 11 Surface member of automobile interior member 21 Impact dispersion plate 31 Impact absorption rib body 32 Substrate 33 Rib

Claims (4)

[Claims] 1. A shock absorbing structure in which a shock absorbing rib body is arranged on a back surface of a front surface member of an automobile interior member, and a shock made of a material harder than the shock absorbing rib body on the surface member side of the shock absorbing rib body. A shock absorbing structure for an automobile interior member, which is provided with a dispersion plate. 2. The board according to claim 1, wherein the shock absorbing rib body is located on the back surface side of the front surface member of the automobile interior member, and a rib provided upright on the back surface of the board opposite to the front surface member. A shock absorbing structure for an automobile interior member, characterized in that a shock dispersion plate is provided on the surface of the substrate. 3. The shock absorbing structure for an automobile interior member according to claim 1 or 2, wherein the shock dispersing plate and the shock absorbing rib body are bonded or integrally molded. 4. The shock absorbing structure for an automobile interior member according to claim 2, wherein the shock dispersion plate is embedded in the substrate of the shock absorbing rib body.