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Lower Vehicle-Body Structure Of Vehicle

A car body and vehicle technology, applied to vehicle components, substructure, superstructure, etc., to achieve the effect of improving the impact energy absorption performance

Inactive Publication Date: 2017-08-11
MAZDA MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, there is room for improvement in achieving more stable collision energy absorption

Method used

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  • Lower Vehicle-Body Structure Of Vehicle
  • Lower Vehicle-Body Structure Of Vehicle
  • Lower Vehicle-Body Structure Of Vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The following is based on Figure 1 to Figure 8 Examples of the present invention will be described.

[0034] Such as Figure 1 ~ Figure 4 As shown, the vehicle V is provided with: an engine partition 1 separating the compartment S and the engine room E from the front to the rear; a pair of left and right front side frames 2 extending forward from the engine partition 1; a pair of enclosures The reinforcement member 3 is disposed above the pair of front side frames 2 on the outer side in the vehicle width direction; Closely configured.

[0035] In addition, in the following description, the arrow F direction is forward, the arrow L direction is left, and the arrow U direction is upward.

[0036] In addition, the vehicle V is provided with: a suspension beam 5 arranged below the engine room E and extending left and right; a pair of left and right suspension arms 6 arranged on the left and right sides of the suspension beam 5; The support beam 7 extends forward and ba...

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PUM

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Abstract

The invention provides a lower vehicle-body struture of a vehicle, and collision energy absorbing performance can be improved by delaying departing time by means of a suspension cross beam. In the lower vehicle-body structure of the vehicle which comprises the suspension cross member, a side member, and first and second reinforcing members which are provided in a closed cross section formed by the side member and a slant portion, the suspension cross member being fixed by fastening a bolt which is inserted through the suspension cross member to a weld nut which is vertically fixed to a bottom plate portion of the side member, the first reinforcing member is joined to a front-side semicircular portion of a peripheral portion of the weld nut and the second reinforcing member is joined to a rear-side semicircular portion of the peripheral portion of the weld nut.

Description

technical field [0001] The present invention relates to an underbody structure of a vehicle, and more particularly to an underbody structure of a vehicle in which a suspension beam is fixed by fastening a bolt member to a nut member provided longitudinally on a floor portion of a support member. Background technique [0002] Conventionally, a pair of left and right front side frames provided on the front body of the vehicle are connected to the front side of the engine bulkhead, and their rear end parts extend rearward along the slope of the engine bulkhead to near the front end of the floor. Side joints to the engine bulkhead and floor. In addition, in the event of a frontal collision, in order to reduce the impact load on the occupants, the front side frame is bent and deformed midway in the vehicle width direction in front of the engine bulkhead, and the impact energy of the collision load is absorbed by deforming the front side frame. [0003] In addition, a suspension ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D21/15B62D21/11
CPCB62D21/11B62D21/155B62D27/04B62D25/082B60Y2306/01B60Y2410/124B62D27/02
Inventor 楢原隆志西本允也青沼隆浩石井和土藤本贤
Owner MAZDA MOTOR CORP