JPH09216575A - Impact absorbing structure at collision time of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sufficiently absorb energy based on impact force applied to a car body from an object by a car body front part even when an automobile collides with this object when the object positioned in front of the automobile at advancing travel time is looked from the automobile side, particularly, when this object deviatively exists in a side part of the car body front part. SOLUTION: A power plant 14 is respectively supported by respective side frames 4. The power plant 14 is composed of an engine 18 arranged in one side part of a car body front part 2 and a transmission 20 which is arranged in the other side part of the car body front part 2 and is joined to a lower part of one side surface 19 of the engine 18. An impact force receiving member 25 is arranged in the vicinity of a front face 24 of a space 23 positioned above the transmission 20 on the upper outside of one side surface 19 of the engine 18. This impact force receiving member 25 is supported by the power plant 14.

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 in which, when a vehicle moving forward collides with an object existing in front of it, energy based on the impact force at the time of the collision is absorbed in the front part of the vehicle body. It is about.

[0002]

2. Description of the Related Art Conventionally, as a structure of a front portion of an automobile, there is one disclosed in Japanese Patent Application Laid-Open No. 58-22718.

According to this, the front portion of the vehicle body in the front portion of the automobile has the side frames extending in the front-rear direction on the respective side portions thereof. A power plant is provided at the front of the vehicle body, and the power plant is supported by the side frames. The power plant is composed of an engine arranged on one side of the front part of the vehicle body and a transmission arranged on the other side of the front part of the vehicle body and connected to a lower part of one side surface of the engine.

The power of the engine is transmitted to the wheels via the transmission, so that the automobile can run on the road surface.

On the other hand, when an automobile collides with an object such as another automobile existing in front of it while traveling forward, the impact force at this time is first transmitted to the power plant, and then the power plant. Is transmitted to each side frame through the as an external force directed rearward in the longitudinal direction. At this time, each of these side frames is compressed rearward by the impact force and plastically deforms, energy based on the impact force is absorbed, and thus the impact force is prevented from being transmitted to the rear side of the automobile. It is like this.

[0006]

By the way, according to the above-mentioned prior art, there is a space that is open to the front outside the upper part of the one side surface of the engine and above the transmission. ing.

Therefore, when looking forward from the side of the vehicle traveling forward, particularly when the object is biased toward the other side of the front of the vehicle body like the transmission, at least a part of the object is present at the time of the collision. There is a possibility that a larger portion may enter the space.

When a large part of the object enters the space as described above, the impact force applied to the power plant among the impact forces applied to the vehicle body from the object is reduced accordingly, and the plasticity of the side frame is reduced. The amount of deformation is also small, that is, the energy absorption by the front portion of the vehicle body may be insufficient.

The present invention has been made by paying attention to the above circumstances. When an object located in front of an automobile traveling forward is viewed from the automobile side to the front, in particular, this object is in front of the vehicle body. When the vehicle collides with this object, the energy based on the impact force given to the vehicle body from the object is sufficiently absorbed by the vehicle body front part when the vehicle is unevenly distributed on the side of the vehicle body. Is an issue.

[0010]

In order to achieve the above object, the present invention provides a shock absorbing structure for a vehicle in a collision, in which a front part 2 of a vehicle body has side frames 4 and 4 extending in the front-rear direction at respective side parts thereof. The same as above, the power plant 1 in the front part 2 of the vehicle body
4 are provided to support the power plant 14 on the side frames 4 respectively.
An engine 18 arranged on one side of the vehicle body front portion 2
And a transmission 20 which is arranged on the other side of the vehicle body front portion 2 and is coupled to a lower portion of one side surface 19 of the engine 18, the outer side of an upper portion of the one side surface 19 of the engine 18 Further, an impact force receiving member 25 is provided in the vicinity of the front surface 24 of the space 23 located above the transmission 20, and the impact force receiving member 25 is provided.
Is supported by the power plant 14.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is an automobile and arrow Fr.
Indicates the front of the traveling direction, and left and right described below means the vehicle width direction toward the front.

A vehicle body front portion 2 in the front portion of the automobile 1 has a body frame 3 made of sheet metal. The vehicle body frames 3 are located on the left and right side portions of the vehicle body front portion 2 and extend in the front-rear direction. The frame 4 and the front cross member 5 that connects the front end portions of the side frames 4 and 4 to each other are provided.

An outer plate 7 made of sheet metal is provided which covers the vehicle body frame 3 from above and constitutes an outer shell of the vehicle body front portion 2. A dash panel 8 supported by the vehicle body frame 3 is provided at a position rearward from the front cross member 5. A space surrounded by the vehicle body frame 3, the outer plate 7 and the dash panel 8 is an engine room 9, and a space inside the vehicle body behind the dash panel 8 is a vehicle compartment 10.

A pair of left and right front wheels 11, 11 are supported on the vehicle body frame 3, and the vehicle body front portion 2 is supported on the road surface 12 by these front wheels 11, 11.

In the engine room 9 of the front part 2 of the vehicle body,
A power plant 14 for driving and driving the automobile 1 is provided, and a side portion of the power plant 14 is supported on the left and right side frames 4, 4 by a pair of left and right supporting members 15, 15. Each of the support members 15 includes a cushioning material 16, and the cushioning material 16 absorbs the vibration that is transmitted from the power plant 14 to the vehicle body frame 3.

The power plant 14 is an internal combustion engine 18 arranged on one side (right side) of the engine room 9 and the other side (left side) of the engine room 9 is the same as above. It is composed of a transmission 20 coupled to a lower part of one side surface 19 which is a left side surface of the engine 18, and the power of the engine 18 is transmitted to the front wheels 11 or rear wheels for driving via the transmission 20. As a result, the automobile 1 can run on the road surface 12.

When the vehicle 1 traveling in a forward direction collides with an object 22 such as another vehicle existing in front of the vehicle 1, the impact force at this time is first applied to the power plant 14 described above.
And then to each side frame 4 through the power plant 14 and each support 15.

A plurality of small notches (recesses) extending in the vertical direction are formed in each side frame 4 in the front-rear direction, whereby each side frame 4 is longitudinally (front-rear direction) due to the impact force. Therefore, the plastic deformation is performed toward the rear so as to smoothly compress to a certain extent, and thus the energy based on the impact force is absorbed.

An impact force receiving member 25 made of a substantially flat metal plate is placed in a substantially vertical position on the outer side of one side surface 19 of the engine 18 and near the front surface 24 of the space 23 located above the transmission 20. It is provided so that. The impact force receiving member 25 is supported on the transmission 20 of the power plant 14 by the support means 27.

The support means 27 has a pair of left and right support frames 28, 28. Each of these support frames 28
Is a gate shape in a side view, and is composed of a pair of pillar members 29, 29 that are positioned apart from each other in the front and rear direction, and a beam member 30 that joins the upper ends of these pillar members 29, 29, and each is made of a single metal. It is formed by bending a pipe material.

Of the front and rear pillar members 29, 29 of each of the support frames 28, the lower end portion of the front pillar member 29 is detachably fastened to the front surface of the transmission 20 by fastening means 32, and the rear pillar member 29 is The lower end is detachably fastened to the rear surface of the transmission 20 by fastening means 33, that is, the supporting means 27 is detachably attached to the power plant 14 by operating the fastening means 32, 33.

According to the above structure, the automobile 1 traveling forward
When the object 22 located in front of the vehicle 2 is viewed from the side of the automobile 1 toward the front, the object 22 is located above the transmission 2
When the vehicle 1 collides with the object 22 in the case where the vehicle 2 is biased to the other side (left side) of the vehicle front part 2 as in 0, it is at least a part of the object 22.
A larger portion may try to enter the space 23. At this time, a part of the object 22 collides with the impact force receiving member 25, and the impact force is transmitted through the impact force receiving member 25. Then, the impact force receiving member 25 is transmitted to the power plant 14 supporting the impact force receiving member 25 by the supporting means 27.

Therefore, most of the impact force applied from the object 22 to the front part of the automobile 1 is the power plant 1 described above.
4 to the side frames 4 and further to the dash panel 8 via the power plant 14. Then, the respective side frames 4 and the dash panel 8 are sufficiently plastically deformed, so that the vehicle body front portion 2 sufficiently absorbs the energy based on the impact force.

The above space 23 is the transmission 2
0, the impact force receiving member 25, and the supporting frames 28 of the supporting means 27 are surrounded, and each of them has sufficient strength. Therefore, since the space 23 is surrounded by the one having sufficient strength, the space 2
By disposing vehicle components such as an air cleaner and electronic components in 3, these components are surely protected from the impact force.

Further, since the supporting means 27 can be attached to and detached from the transmission 20 of the power plant 14, if the supporting means 27 is removed, the workability of the parts in the space 23 can be kept good.

Further, the transmission 20 of the power plant 14 is reinforced by the impact force receiving member 25 and the supporting means 27.

Although the above is based on the illustrated example, the impact force receiving member 25 may be supported by the engine 18 by the supporting means 27.

[0029]

According to the present invention, the front portion of the vehicle body has the side frames extending in the front-rear direction at the respective side portions thereof, and the power plant is provided at the front portion of the vehicle body. The power plant is supported by the engine, which is arranged on one side of the front part of the vehicle body, and the transmission which is arranged on the other side of the front part of the vehicle body and is coupled to the lower part of one side surface of the engine. In an automobile, an impact force receiving member is provided outside the upper part of the one side surface of the engine and near the front surface of a space located above the transmission, and the impact force receiving member is supported by the power plant. .

Therefore, when an object located in front of the vehicle traveling in the forward direction is viewed from the automobile side to the front, the object is particularly biased to the other side of the front of the vehicle body like the transmission. In this case, when a car collides with this object, a larger portion, which is at least a part of the object, may try to enter the space, but at this time, a part of the object receives the impact force. Upon collision with the member, the impact force is transmitted to the power plant via the impact force receiving member.

Therefore, most of the impact force applied from the object to the front part of the automobile is transmitted to the power plant and is transmitted to the side frames via the power plant. The plastic body is sufficiently plastically deformed, so that the front portion of the vehicle body sufficiently absorbs the energy based on the impact force.

[Brief description of drawings]

FIG. 1 is a plan view of a front portion of an automobile.

FIG. 2 is a front view of a front portion of an automobile.

FIG. 3 is a perspective view of a front portion of an automobile.

[Explanation of symbols]

 1 Car 2 Front part of vehicle 3 Body frame 4 Side frame 9 Engine room 14 Power plant 18 Engine 19 One side 20 Transmission 22 Object 23 Space 24 Front 25 Impact force receiving member 27 Support means 28 Support frame 29 Pillar 30 Beam member 32, 33 Fastening means

Claims (1)

[Claims] 1. A front portion of a vehicle body has side frames extending in the front-rear direction on each side portion thereof, and a power plant is provided at the front portion of the vehicle body, the power plant being supported by each of the side frames. A vehicle comprising a power plant including an engine arranged on one side of a front part of the vehicle body, and a transmission arranged on the other side of a front part of the vehicle body, which is coupled to a lower part of one side surface of the engine, An impact force receiving member is provided on the outer side of the upper side of the one side surface of the engine and in the vicinity of the front surface of the space located above the transmission, and the impact force receiving member is supported by the power plant at the time of collision of a vehicle. Shock absorption structure.