Underside body structure of vehicle

A vehicle and body technology, which is applied in the field of vehicle lower body structure, can solve the problems of rising manufacturing cost, increasing body weight, and cost increase, and achieve the effects of suppressing body weight, suppressing the increase in manufacturing cost, and reducing impact
CN1903636AInactive Publication Date: 2007-01-31MAZDA MOTOR CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
MAZDA MOTOR CORP
Publication Date
2007-01-31
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The vehicle lower body structure of the present invention comprises: a bottom plate (7) constituting the floor of the vehicle compartment; a pair of left and right sides arranged on the lower surface of the bottom plate (7) and forming a closed section extending along the front-rear direction of the vehicle with the bottom plate (7). a longitudinal beam (10); a pair of left and right middle longitudinal beams (21) that are joined to the bottom plate (7) located between the longitudinal beams (10), and form a closed section extending along the front and rear direction of the vehicle with the bottom plate (7), The middle longitudinal beam (21) is divided in the front-rear direction of the vehicle, and these divided longitudinal beams (22-24) are arranged at a certain interval in the front-rear direction of the vehicle; the divided longitudinal beams ( 22~24) seat support frame (25,26). By adopting the present invention, it is possible to ensure that the middle longitudinal beam functions as a longitudinal through member, and to suppress the increase of the weight and cost of the vehicle body as much as possible.
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Description

technical field

[0001] The present invention relates to a vehicle underbody structure, and more specifically, to a vehicle underbody structure in which an intermediate side member extending in the vehicle front and rear direction is provided between a pair of left and right side members extending in the vehicle front and rear direction. Background technique

[0002] The above-mentioned lower body structure usually includes a front side member extending in the front-rear direction of the vehicle, a body side member and a rear side member connected in the front-rear direction, and a side member mainly arranged between the body side member and the rear side member. Between them is the floor that constitutes the floor of the vehicle compartment, and the central portion of the floor in the vehicle width direction is raised upward to form a floor tunnel, so that the central portion of the lower body in the vehicle width direction is reinforced by the...

Claims

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