JPH02231246A - Energy absorbing device for vehicle - Google Patents

Abstract

PURPOSE:To secure the shock softening performance and the shape holding performance by installing a device body so as to protect the upper edge surface of an impact force absorbing pad member in a car room and absorbing the impact force in the car width direction and holding the external force in the vertical direction. CONSTITUTION:As for a right side door 100 of a vehicle, a window glass 7 and a window regulator 8 for raising and lowering the window glass 7 are accommodated inside a hollow structure consisting of an outer panel 4 and an inner panel 5. An inner decoration panel 9 is arranged on the room inner side of the inner panel 5, and a pad member 1 and a core member 3 whose bottom surface contacts the upper surface of the pad member 1 are built in the inner decoration panel 9. In this cass, the core member 3 is fitted onto a plurality of pin bodies 10 extended from the inner panel 5. In case of the collision of the side surface of the vehicle, the fitting between the core member 3 and each pin body 10 is released. Therefore, the impact force is absorbed by shifting the core member 3 to the position shown by the dotted line on the figure.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an energy absorption device for a vehicle, and more particularly to an energy absorption device for a vehicle provided inside a door. [Prior art] In addition to collisions in the front and rear directions of the vehicle, collisions on the sides of the vehicle (
New safety standards are being considered to reduce the impact force exerted on occupants by absorbing the impact force caused by side collisions. Figure 5 is a cross-sectional view of a conventional right-hand door, and is an example of a right-hand door lOO designed to satisfy the above-mentioned side collision safety standards. In FIG. 5, the right door 100
After the outer panel 4 and the inner panel 5 are processed into the cross-sectional shape shown in the figure, they are welded to form a hollow structure, and a window glass 7 is inserted into this hollow structure.
and a window regulator 8 that drives the window glass 7 up and down, while an impact bar 6 is provided inside the outer panel 4 to absorb shock in the event of a side collision. Furthermore, an interior panel 9 made of resin or the like is laid on the passenger side of the inner panel 5, so that it can also be used as an armrest. Right door 10 configured like this
In the 0, the impact par 6 deforms in the event of a side collision to prevent the impact from directly acting on the occupants in an attempt to satisfy the above safety standards for side collisions. The "vehicle interior pad material" of Utility Model Application No. 58-118082 is one of the proposals for absorbing the impact force of collisions on the sides of vehicles. The surface of a shock-absorbing pad material made of a pad material with relatively low rigidity is covered with a skin layer, and cuts are formed in the skin layer at appropriate intervals.The material is placed inside the vehicle interior, and is placed in the vehicle interior. This makes it possible to efficiently absorb the impact force of a collision. Figure 6 is a cross-sectional view of a conventional right-hand door, showing how the above-mentioned impact-absorbing pad material is provided. Since the right door 100 shown in FIG. 6 is basically the same as the right door shown in FIG. 5, the same parts will be given the same numbers and the explanation will be omitted, and the explanation will be limited to the different parts. ．．
In FIG. 6, the pad material 1 is laid inside an interior panel 9 made of resin or the like and provided on the passenger side of the inner panel 5 as shown. The upper surface 9a of this interior panel 9 can also be used as an armrest. [Problems to be solved by the present invention] However, since all of the conventional proposals for absorbing the impact force of a collision have been as described above, the pad material for impact absorption is a relatively rigid material that easily deforms due to external force. As a result of being made of small materials, the padding for the armrests, which are often touched by passengers while riding, undergoes permanent deformation and no longer retains its original shape, resulting in a problem of poor shape retention that is unacceptable in terms of appearance. Ta. Therefore, the present invention has been made in view of the above-mentioned problems, and its purpose is to reduce the energy consumption of a vehicle, which can ensure shock absorption ability and shape retention that can retain its original shape. The point is that it provides an absorption device. Another object of the present invention is to provide a vehicle energy absorption device that can be applied to an armrest.

[Means and effects for solving the problem] In order to solve the above-mentioned problems and achieve the purpose, the energy absorbing device for a vehicle according to the present invention is provided on the impact force absorbing pad material disposed inside the vehicle interior. An energy absorption device for a vehicle that is installed to protect the end face of the vehicle, and absorbs an impactful external force in the width direction of the vehicle, while absorbing external force in the vertical direction of the vehicle. It acts as a support and can also be used as an armrest.

[Example] Examples of the impact force absorber for a vehicle according to the present invention will be described below with reference to the drawings.

FIG. 1 is an external perspective view showing the vehicle energy absorbing device of the first embodiment, and shows how the vehicle energy absorbing device is disposed on the passenger side of the right door 100. In FIG. 1, the interior panel 9 of the right door 100 covers the exposed surface of the right door lOO on the passenger side, except for the window frame, and the inside is made of energy absorbing foam (EA foam) that has excellent impact absorption properties. ) and a core member 3 whose bottom surface is in contact with the top surface 1a of this pad material 1 are built in, and a part of the interior panel 9 is formed as the top surface portion 9a. It can be used as an armrest.

Based on FIG. 2(a), which is a sectional view taken along the line A-A in FIG. 1, a structure for attaching the pad material 1 and the core member 3 will be described below. In FIG. 2(a), the right door 100 is constructed by processing an outer panel 4 and an inner panel 5 into the cross-sectional shape shown, and then welding them together to form a hollow structure. A window glass 7 and a window regulator 8 for electrically or manually driving the window glass 7 up and down are housed in the outer panel 4, and an impact par 6 is provided inside the outer panel 4 to absorb shock in the event of a side collision. There is. Further, on the passenger side of the inner panel 5, an interior panel 9 made of resin or the like is provided.
A flat section 9a is formed so that it can be used as an armrest. Among these components, the core member 3 made of a resin material is fitted and held in a predetermined position by four bottle bodies 10 hanging vertically from the inner panel 5, and is designed to prevent side collisions. At times, the core member 3 is released from the fitted state with the bottle body 10 by the weight of the occupant during a side collision, and is moved to the position indicated by the two-dot chain line in the figure.

FIG. 2(b) is a perspective view of the actual state in which the core member 3 is attached.

As shown in the figure, the core member 3 has four mounting protrusions 3.
A is provided, and a fitting hole 3b is bored in each convex portion 3a, and each fitting hole 3b is fitted into a bottle body lO provided in the inner panel 5 and shown by a broken line. I'm trying to fix it. The notch 3C corresponds to the window regulator 8, and is designed to prevent the core member 3 from interfering with the window regulator 8 when it moves during a side collision. The method for assembling the above configuration is to once pass the core member 3 through the hole 5a bored in the inner panel 5 as shown by the arrow H, and then move the core member 3 in the direction of the arrow H2. The core member 3 is moved in the direction of arrow H, and the fitting hole 3b of the core member 3 is fitted into the bottle body 10 and set. FIG. 2(c) shows the fitting hole 3b and the bottle body 10 It is a partial sectional view showing a fitted state of the body 10, and as shown in the figure, the bottle body 10 provided on the inner panel 5 has a tapered part 10 at the tip.
A and a jaw portion 10b are formed, and the fitted state is maintained by inserting the fitting hole 3b of the core member 3 into the jaw portion 10b as shown in the figure. Here, since the fitting hole 3b can expand during fitting, the state shown in the figure can be achieved. As a result of maintaining the fitted state in this way, when an external force acts on the core member 3, the fitted state of the fitting hole 3b with respect to the bottle body 10 is released and the position shown by the two-dot chain line in the figure is released. I try to move.

FIG. 3(a) is a sectional view of the right door provided with the energy absorption device of the vehicle of the second embodiment, and FIG. 3(b) is a sectional view taken along the line C-C of FIG. 3(a). are shown respectively. The right door 100 shown in FIG. 3 is basically the same as the right door 100 shown in FIG. Then, in FIG. 3, the pad material 1 is laid inside an interior panel 9 made of resin or the like provided on the passenger side of the inner panel 5 as shown. In order to enable the upper surface 9a of the interior panel 9 to be used as an armrest, the honeycomb core material 2 is provided below the upper surface 9a of the interior panel 9 as shown.

FIG. 3 (
In b), the honeycomb core material 2 has a honeycomb shape as shown in the figure, and has low rigidity in the lateral direction and high rigidity in the vertical direction, so it normally functions as an armrest and supports external forces. The system is designed to collapse in the event of a side collision, reducing the number of injuries to the occupants. Next, FIG. 4 is a partial sectional view of the right door of the vehicle provided with the energy absorbing device of the third embodiment.

In FIG. 4, the inner panel 5 has a core member base 14.
The core member 30 has a tapered edge as shown, and the core member base 14 and the core member 30 are integrally formed by the shear pin 12. As a result, in the event of a side collision, the shear bin l2 is sheared, and the core member 30 is moved to the position shown by the two-dot chain line, thereby reducing the number of obstacles to the occupant. As described above, in each of the embodiments, the energy absorption device of the vehicle can secure the shock absorption force in the event of a side collision, retain its original shape, that is, ensure shape retention, and can be used as an armrest. An applicable vehicle energy absorption device can be provided. Although the above explanation has been limited to the right door, it goes without saying that it can be applied to both the front and rear of the left door 3.

[Effects of the Invention] As described above, the energy absorption device for a vehicle according to the present invention provides an energy absorption device for a vehicle that can ensure not only shock absorption power but also shape retention that can retain its original shape. It is possible to provide a vehicle energy absorption device that can be applied to armrests.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view showing the energy absorption device for a vehicle according to the first embodiment, FIG. 2(a) is a sectional view taken along the line A-A in FIG.
) is a perspective view of the installation state of the core member 3, FIG. 2(c) is a partial sectional view showing the fitted state of the fitting hole 3b and the bottle body 10, and FIG. 3(a) is a vehicle of the second embodiment. 3(b) is a sectional view taken along the line C-C of FIG. 3(a), and FIG. 4 is a sectional view of a cloth door equipped with an energy absorbing device according to the third embodiment. Figures 5 and 6 are sectional views showing the cross section of a conventional right door. In the figure, ■... Pad material, 2... Honeycomb core material, 3,
30... Core member, 4... Outer panel, 5...
Inner panel, 9...Interior panel, 1o...Bin body, I2...Shear bottle. Patent Applicant: Mazda Motor Corporation', ;1I'Z'','' Agent: Patent Attorney Yasunori Otsuka (and 1 other person) {2' Figure 1 Figure 3 Figure 2 (a) Figure 4 ○ Figure 5 Figure 6

Claims (1)

[Scope of Claims] A vehicle energy absorbing device provided to protect the upper end surface of an impact force absorbing pad material disposed in a vehicle interior, the device comprising: an impact external force in the width direction of a vehicle; An energy absorption device for a vehicle, characterized in that it is configured to absorb the impact external force against the vehicle, while supporting external force in the vertical direction of the vehicle.