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Device for attaching a first part to a second part which is attached to a third part and the assembly of three parts, in particular, of a motor vehicle

A technology of attachment and assembly, applied in the direction of connecting members, vehicle parts, transportation and packaging, etc., can solve problems such as affecting the quality of the assembly, breaking or deforming part 1, and not being able to install it correctly

Active Publication Date: 2014-04-02
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the tightening torque of the nut 7 can be very high, with the risk of breaking or deforming the part 1
[0011] On the other hand, if the tightening torque is not high enough, there is a risk that part 1 will not fit correctly on part 2 and thus there will still be a gap between the two parts
[0012] The above two conditions affect the quality of the above components

Method used

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  • Device for attaching a first part to a second part which is attached to a third part and the assembly of three parts, in particular, of a motor vehicle
  • Device for attaching a first part to a second part which is attached to a third part and the assembly of three parts, in particular, of a motor vehicle
  • Device for attaching a first part to a second part which is attached to a third part and the assembly of three parts, in particular, of a motor vehicle

Examples

Experimental program
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Effect test

Embodiment Construction

[0032] figure 2 Attachment device shown in, as figure 1 The case of the attachment means allows the first part 1 to be attached to the second part 2 which itself is attached to the third part 3 by means of a bead of adhesive 2a.

[0033] The first part 1 supports a screw 4 which can be inserted into the opening 5 of the second part 2 and into the hole 6 of the third part 3 .

[0034] Nut 7 (see image 3 ) screwed on the screw 4 , the nut 7 can be used to tighten the first and second parts 1 , 2 against the third part 3 .

[0035] Before tightening the nut 7, there is a certain gap j between the supporting surface 4a of the screw rod 4 and the third part 3 (see figure 2 ).

[0036] exist figure 2 and image 3 In the shown device according to the invention, the screw 4 is firmly connected to the first part 1 by means of an element 8 which is elastically deformable when the nut 7 is tightened.

[0037] figure 2 and image 3 In the example of , the element 8 is a heli...

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Abstract

The invention relates to a device for attaching a first part (1) to a second part (2) which is attached to a third part (3), said first part (1) bearing a screw (4) that can be inserted into an opening (5) in the second part (2) and into a hole (6) in the third part (3). In addition, a nut (7), which is screwed on the screw (4), can be used to tighten the first part (1) against the second part (2). Moreover, the screw (4) is solidly connected to the first part (1) by means of a spring (8) that can deform elastically as the nut (7) is being tightened.

Description

technical field [0001] The invention relates to a device for sequentially attaching a first part, a second part and a third part. [0002] The invention also relates to a three-part assembly, in particular of a motor vehicle, using the attachment device according to the invention. Background technique [0003] figure 1 is a schematic diagram in cross-section showing the assembly of the three parts 1, 2, 3. [0004] The first two parts 1 , 2 are eg exterior equipment of a motor vehicle, while the third part 3 is a sheet metal part of the body of the vehicle. [0005] Part 2 is attached to part 3 with a bead of adhesive 2a. [0006] The first part 1 is placed on the part 2 and supports a screw 4 which can be inserted into the opening 5 of the second part 2 . [0007] A nut 7 screwed onto the screw 4 can be used to screw the part 1 against the part 2 . [0008] Before the nut 7 is tightened, there is a gap j between the part 3 and the support surface 4a connected to the pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B5/02
CPCF16B5/025B60R13/04F16B5/0266
Inventor A·莱皮纳R·维耶曼
Owner PEZHO SITROEN AUTOMOBILS SA
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