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car body

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

Active Publication Date: 2018-08-10
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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Examples

Experimental program
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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

The invention relates to a motor vehicle body with an understructure and a lining element having different coefficients of thermal expansion and at least one opening ( 4. The connecting assembly (3) of 5), wherein one (2) of the plate parts is fixed in the groove (23) of the connecting assembly (3) with a gap along the surface normal of the plate part, and Said connecting assembly (3) also comprises a sleeve (10) with two parts (11, 12) mutually movable along said surface normal, between which another plate is fixed piece (1).

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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Patent Type & Authority Patents(China)
IPC IPC(8): B62D27/00F16B5/02
CPCB62D27/00F16B5/0225F16B5/025F16B5/0283B62D27/065F16B5/0241B62D27/02B62D29/001
Inventor H.卡里索格鲁W.拉塞尔
Owner GM GLOBAL TECH OPERATIONS LLC
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