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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

Inactive Publication Date: 2007-01-31
MAZDA MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, on the other hand, since the intermediate side member needs to be provided separately at least corresponding to the body side member part of the side member, not only the weight of the vehicle body is greatly increased, but also the manufacturing cost is increased.
[0005] Especially for vehicles with a long body, the middle longitudinal beam will increase accordingly, which will make the problems of increased vehicle weight and cost more prominent

Method used

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  • Underside body structure of vehicle
  • Underside body structure of vehicle
  • Underside body structure of vehicle

Examples

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Embodiment Construction

[0031] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. figure 1 It is a cross-sectional view schematically showing a vehicle according to an embodiment of the present invention. figure 2 is a perspective view schematically showing the underbody structure of the vehicle, image 3 It is a plan view showing the state in which the lower body structure is removed from the floor.

[0032] The above-mentioned vehicle is a miniature box-type vehicle in which the first to third rows of seats 4-6 are installed along the front-rear direction of the vehicle. like figure 1 and figure 2 As shown, the center portion in the vehicle width direction of the floor panel 7 protrudes upward to form a tunnel portion 8 extending in the vehicle front-rear direction and having a predetermined width. This channel part 8, its front end portion is inclined to rear downward, and the magnitude of the upward protrusion of its middle portion ...

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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.

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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Application Information

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IPC IPC(8): B62D25/20
Inventor 江岛胜美
Owner MAZDA MOTOR CORP
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