JPH0681848U - Vehicle shock absorption structure - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a shock absorbing structure for a vehicle capable of effectively absorbing a shock applied to the foot of an occupant during a frontal collision without lowering the sound insulation of the insulator dash. [Structure] By installing a shock absorbing member 20 in which a heat resistant film 22 is laminated on the surface of a shock absorbing pad 21 on the side of the engine room E of the toe board 11 and the mission tunnel 12 located below the dash panel 10. , Achieves an effective shock absorbing function without lowering the sound insulation performance of the insulator dash 40, and imparts heat insulation to the mission tunnel portion 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle shock absorbing structure, and more particularly to a vehicle shock absorbing structure that effectively absorbs a shock applied to a foot portion of an occupant.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, as a configuration of a foot portion of an occupant in a vehicle interior, as shown in FIG. 7, a dash panel 1 that divides an engine room E and a vehicle interior R, a toeboard portion 2 that is connected to the dash panel 1 and extends rearward. An insulator dash 3 is installed along the side surface of the passenger compartment of the vehicle, and the insulator dash 3 has a sound absorbing material 3b made of a porous material such as felt or polyurethane foam on the back surface of the sound insulating material 3a such as a rubber sheet. They are laminated and installed to enhance the quietness of the vehicle interior by absorbing or insulating the noise transmitted from the engine room E into the vehicle interior R.

Then, in order to have a function of absorbing a shock applied to a foot portion of an occupant, a predetermined portion of the sound absorbing material 3b of the insulator dash 3 is cut out, and a shock absorbing pad made of foamed polystyrene or the like is provided in an opening portion thereof. 4 are installed.

Therefore, at the time of a head-on collision, the engine 5 shifts backward, and the sub-frames 5 a located on the rear portions of both sides of the engine 5 hit the toe board portion 2 and the impact applied to the toe board portion 2 is effectively absorbed by the impact absorbing pad 4. However, it reduces the impact on the foot of the passenger.

[0005]

[Problems to be solved by the device]

 However, in the conventional structure in which the shock absorbing pad 4 is installed in the insulator dash 3, the sound absorbing material 3b of the insulator dash 3 is cut out, and the shock absorbing pad 4 is installed in the opening portion of the insulator dash 3. It has been pointed out that the sound insulation performance is degraded.

The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a vehicle impact absorbing structure capable of effectively absorbing an impact of a foot portion of an occupant without impairing sound insulation performance. To aim.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the vehicle shock absorbing structure according to the present invention is provided with a shock absorbing member having a heat insulating film attached to the surface of the shock absorbing pad on the side of the engine room of the toe board and the mission tunnel. It is characterized by being.

Further, the shock absorbing member may have an integrated structure continuous with a lower end edge of an insulator dash front attached to the engine room side of the dash panel, and the shock absorbing member may be a shock absorbing pad and a heat insulating film. A sound absorbing material may be inserted between and.

[0009]

[Action]

 As is clear from the above configuration, the impact applied from the subframe of the engine at the time of a frontal collision can be effectively absorbed by the impact absorbing member installed on the engine room side of the toe board, so that the impact on the foot of the occupant is reduced. Can be significantly eased.

Further, since the insulator dash is not provided with the impact absorbing member installation opening, the sound insulation performance of the insulator dash is not deteriorated at all.

Further, since it is installed over the side of the engine room of the mission tunnel section, the heat insulating effect of the mission tunnel section can be expected, and it is not necessary to make the panel in the mission tunnel section a heat insulating structure such as a double structure.

[0012]

【Example】

 Hereinafter, an embodiment of a vehicle shock absorbing structure according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 show a first embodiment of a shock absorbing structure for a vehicle according to the present invention. FIG. 1 shows an installation place of a shock absorbing member used in the present invention from the engine room side to a dash panel, Fig. 2 is a front view of the toe board, Fig. 2 is a vertical cross-sectional view showing the impact absorbing member installed on the toe board, Fig. 3 is a perspective view showing the external shape of the impact absorbing member used in the present invention, and Fig. 4 is FIG. 6 is an explanatory view showing a state in which the shock absorbing member used in the present invention is attached and fixed to the toe board portion.

A first embodiment of a shock absorbing structure for a vehicle according to the present invention will be described.

In FIG. 1 and FIG. 2, a toeboard portion 11 located below both sides of a dash panel 10 that divides an engine room E and a vehicle compartment R and a mission tunnel portion 12 located below a central portion of the dash panel 10 are respectively provided. A shock absorbing member 20 is installed on the side surface of the engine room E.

The shock absorbing member 20 is composed of a shock absorbing pad 21 and a heat insulating film 22 laminated on the front surface or the front and back surfaces thereof. More specifically, the shock absorbing pad 21 is a foamed styrene foam. , PP bead foam, plastic foam such as hard urethane, foam rubber, or other elastic material, and the like, and aluminum foil is preferable as the heat insulating film 22.

The shock absorbing member 20 has the external shape shown in FIG. 3, and as shown in FIG. 4, the stud bolt 13 is planted from the toe board portion 11 toward the engine room E so that its tip faces. Can be easily attached to the engine room E side of the toe board portion 11 and the mission tunnel portion 12 by inserting the clip 14 into the attachment hole 23 provided in the shock absorbing member 20 and fitting the clip 14 therein. .

Therefore, at the time of a frontal collision, the engine 30 in the engine room E and the sub-frame 31 located at the rear of the engine room E slip backward, but the sub-frame 31 collides with the shock absorbing member 20 and the elasticity of the shock absorbing pad 21 is reduced. By the deformation, the impact can be effectively absorbed, and the impact applied to the occupant's feet can be significantly reduced. Further, according to the shock absorbing structure of the present invention, since the shock absorbing member 20 having the shape shown in FIG. 3 is installed on the engine room side of the toe board portion 11 and the mission tunnel portion 12, the interior of the vehicle compartment R is shown. Insulator dash 40 (a structure in which sound absorbing material 42 is laminated and integrated on the back surface of sound insulating material 41) is installed, and floor carpet 43 is installed from the floor panel to toe board portion 11. Since the sound absorbing material 42 is not formed with an opening for inserting a shock absorbing pad, the sound insulation of the insulator dash 40 is not impaired in any way, and the quietness of the vehicle interior can be favorably maintained.

In addition, a shock absorbing member 20 is installed on the side surface of the engine room E along the mission tunnel portion 12 to which heat from the engine room E is likely to be added. Since it is possible to block the heat of the above, it is not necessary for the mission tunnel section 12 to have a double panel structure in consideration of heat insulation, and there is an advantage that it can contribute to weight reduction.

Next, FIGS. 5 and 6 show a modified example of the vehicle shock absorbing structure according to the present invention. FIG. 5 shows a structure in which the insulator dash front 32 and the shock absorbing member 20 are integrated. This simplifies the mounting work and the like.

That is, as shown in FIG. 5, the insulator dash front 32 attached to the engine room E side of the dash panel 10 has a sound absorbing material such as glass wool on the back surface of the skin material 33 made of non-woven fabric or heat-resistant rubber sheet. Since the material 34 is laminated and the insulator dash front 32 and the shock absorbing member 20 are integrated, fixing of the upper end portion of the shock absorbing member 20 can be omitted, and the number of parts such as mounting clips is reduced. Has the advantage that it can be reduced and the number of installation steps can be simplified.

Further, as shown in FIG. 6, a sound absorbing material 24 such as glass wool may be inserted and installed between the shock absorbing pad 21 and the heat insulating film 22, and by installing the sound absorbing material 24, the engine There is an additional advantage that the sound absorbing property in the room E is improved and the shock absorbing power is increased.

[0023]

[Effect of device]

 As described above, the shock absorbing structure for a vehicle according to the present invention has the following special effects.

(1) Since the structure is such that a shock absorbing member consisting of a shock absorbing pad and a heat insulating film is installed along the engine room side of the toe board part and the mission tunnel part, the inside of the insulator dash is different from the conventional structure. Compared to the structure in which a shock absorbing pad is installed on the vehicle, the sound insulation performance of the insulator dash is not impaired at all, which has the effect of contributing significantly to the quietness of the vehicle interior.

(2) According to the vehicle shock absorbing structure of the present invention, since the shock absorbing member including the heat insulating film and the shock absorbing pad is installed on the engine room side of the mission tunnel portion, the engine room Since the heat transferred from the vehicle to the mission tunnel section can be blocked by the shock absorbing member, the panel of the mission tunnel section does not need to have a double panel structure as in the conventional case, and the panel structure can be simplified, and It also has the effect of contributing significantly to weight reduction.

(3) According to the shock absorbing structure of the second aspect, since the shock absorbing member and the insulator dash front are integrated, the mounting work can be simplified and the number of parts such as the mounting clip can be reduced. It has the effect that it can be reduced.

(4) According to the invention of claim 3, since the sound absorbing material is inserted between the shock absorbing pad and the heat insulating film, the sound absorbing performance in the engine room is improved. In addition to having the effect, it is possible to double the shock absorbing power at the time of a frontal collision.

[Brief description of drawings]

FIG. 1 shows a first embodiment of a vehicle shock absorbing structure according to the present invention, and is a front view of a dash panel seen from an engine room side showing a state of installing a shock absorbing member.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an overall perspective view showing an embodiment of a shock absorbing member used in the present invention.

FIG. 4 is an explanatory view showing a state where the shock absorbing member used in the present invention is attached to the toe board portion.

FIG. 5 is a sectional view showing another embodiment of the shock absorbing structure according to the present invention.

FIG. 6 is a sectional view showing the structure of a shock absorbing structure according to another embodiment of the present invention.

FIG. 7 is a sectional view showing a conventional shock absorbing structure.

[Explanation of symbols]

 10 Dash Panel 11 Toe Board Part 12 Mission Tunnel Part 13 Stud Bolt 14 Mounting Clip 20 Impact Absorbing Member 21 Impact Absorbing Pad 22 Heat Insulating Film 24 Sound Absorbing Material 30 Engine 32 Insulator Dash Front 40 Insulator Dash 41 Sound Insulating Material 42 Sound Absorbing Material 43 Floor Carpet

Claims (3)

[Scope of utility model registration request] 1. A shock-absorbing member (20) comprising a heat-insulating film (22) attached to the surface of a shock-absorbing pad (21) on the engine room side surface of the toe board part (11) and the mission tunnel part (12). A shock absorbing structure for vehicles that is installed. 2. An insulator dash front (32) installed on the side of the engine room of a dash panel (10) partitioning the engine room (E) and the vehicle compartment (R).
The shock absorbing structure for a vehicle according to claim 1, wherein a shock absorbing member (20) is integrated with a lower end edge of the structure. 3. The vehicle shock absorption according to claim 1, wherein a sound absorbing material (24) is interposed between the shock absorbing pad (21) and the heat insulating film (22). Construction.