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Motor vehicle body

A technology of automobile body and plate, applied in the direction of vehicle parts, connecting members, thin plate connection, etc., can solve problems such as twisting, bending of lining elements, damage and so on

Active Publication Date: 2015-03-18
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the connection between the substructure and the lining element does not have the necessary gaps that allow displacements related to different expansion characteristics, the lining element will be damaged when exposed to heat, for example when the lining element is exposed to direct sunlight Can bend, causing distortion and damage

Method used

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  • Motor vehicle body
  • Motor vehicle body

Examples

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Embodiment Construction

[0022] figure 1 A perspective view of a section of a first panel 1 and a second panel 2 is shown, clamped and fixed by a connection assembly 3 extending through the panels 1, 2 slotted holes 4,5. The longitudinal axes of the elongated holes 4, 5 are parallel to each other and are oriented along the plane marked III-III.

[0023] The panel 1 made of plastic, in particular fiber-reinforced plastic, is part of a lining element of a motor vehicle body which is not visible from the outside in the assembled vehicle. The lining element can be, for example, a fender, a door, a lid or the like. In contrast, the panel 2 is made of metal, in particular sheet steel, and is part of the supporting structure of the vehicle body. In particular, the second plate part can be a part of the frame rail or a frame part fastened to the frame rail.

[0024] The connection assembly 3 here comprises bolts 6 (however from figure 1 Only the tip of the screw 7 can be seen in ), the nut 8 screwed on t...

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PUM

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Abstract

A connecting element for a vehicle body substructure and a panel element having different heat expansion coefficients are provided. The connecting unit penetrates an opening in a plate of the substructure. A plate of the paneling element is held with play in the direction of its surface normal is in a groove of the connecting unit. The connecting unit includes a bushing having two parts that are moveable against one another in the direction of the surface normal, between which the other plate is held.

Description

technical field [0001] The invention relates to a motor vehicle body having an underbody structure and a lining element which are made of different materials and thus have different coefficients of thermal expansion. Background technique [0002] When a lining element made of plastic is assembled on a metallic substructure, the lining element bends due to the intense expansion caused by the heat generated. When the connection between the substructure and the lining element does not have the necessary clearances that allow displacements related to the different expansion characteristics, the lining element is exposed to heat, for example when the lining element is exposed to direct sunlight Bending occurs, causing distortion and damage. [0003] Car bodies are exposed to higher temperatures than sunlight during the drying process after painting. In order for the vehicle body to be able to withstand the drying process without damage in this case, a degree of freedom of movem...

Claims

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Application Information

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IPC IPC(8): B62D27/00F16B5/02
CPCB62D29/001B62D27/065F16B5/02B62D27/02B62D27/00F16B5/0225F16B5/025F16B5/0283F16B5/0241
Inventor H.卡里索格鲁W.拉塞尔
Owner GM GLOBAL TECH OPERATIONS LLC
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