Vehicle-body structure of vehicle and manufacturing method of same
A body and vehicle technology, which is applied to the body structure of a vehicle and its manufacturing field, can solve problems such as the inability to effectively suppress the vehicle, and achieve the effects of improving rigidity, ensuring rigidity and reducing noise.
Active Publication Date: 2013-04-24
MAZDA MOTOR CORP
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- Description
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Problems solved by technology
[0005] However, in the structures disclosed in the above-mentioned Patent Documents 1 and 2, although the rigidity of the vehicle body can be improved, it may not be possible to effectively suppress the vibration generated in each part of the vehicle from being transmitted to the vehicle interior due to the location or shape of the vehicle.
Method used
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[0081] Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
[0082] Before explaining the specific structure in which the present invention is applied to an actual vehicle body, the results of simulation performed on a model with a simplified structure will be described first.
[0083] figure 1 (a) represents the rigid binding model A used for this simulation, figure 1 (b) represents the combination of rigid bonding and flexible bonding Model B. Such as figure 1 As shown in (a) and (b), in either of the rigid bonded model A and the combined rigid bonded and flexible bonded model B, the cross-sectional hat-shaped first member 1 and the flat plate-shaped second member 2 are used As a vehicle body structural member, the first hollow frame 4 having a closed section 3 which is a substantially rectangular closed section is formed by joining both end portions of the second member 2 to flanges on both sides of the first membe...
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Abstract
The invention relates to a vehicle-body structure of a vehicle and a manufacturing method of a same. The vehicle-body structure of the vehicle comprises a frame comprised of vehicle-body forming members forming a closed-section portion, a reinforcing member provided in the closed-section portion and joined to the frame, and another vehicle-body forming member joined to an outer face of the frame, which is different from the vehicle-body forming members of the frame, a joint portion of the frame and the reinforcing member includes a rigid joint portion where the frame and the reinforcing member are joined with a direct contact thereof and a flexible joint portion where the frame and the reinforcing member are joined via a damping member provided therebetween, and the joint portion is provided at a specified position on an inner face of the frame located in the vicinity of a portion where the forming member is joined to the frame. Thus, the vehicle-body structure reducesriding comfort and reduces noise.
Description
technical field [0001] The invention relates to a vehicle body structure and a manufacturing method thereof. Background technique [0002] In vehicles such as automobiles, in order to improve ride comfort and safety, it is required to increase the rigidity of the vehicle body. As a technology for improving the rigidity of the vehicle body, for example, Japanese Patent Laid-Open Publication No. 59-182472 (hereinafter referred to as Patent Document 1) and Japanese Patent Laid-Open Publication No. Sho 60-097673 (hereinafter referred to as Patent Document 2) discloses a technique of providing a reinforcement body in a closed section formed by vehicle body structural members. [0003] Patent Document 1 discloses a structure in which a bulkhead is provided in a nodular shape in a closed section of a side sill formed by a side sill outer and a side sill inner, and a flange portion provided around the bulkhead is spot welded. Bonded to the inside of the side sill outer and side sil...
Claims
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IPC IPC(8): B62D25/00
CPCB62D25/04B62D25/06B62D25/088B62D25/145B62D25/20B62D25/2027B62D25/2036Y10T29/49622
Inventor 黑木治杉原毅中川兴也长尾邦昭寺田荣藏田三穗伊吉章渡边重昭
Owner MAZDA MOTOR CORP