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Rivet for the fastening of pieces to the bodywork of a vehicle

A fastening and automotive technology, applied in the direction of rivets, connecting members, thin plate connections, etc., can solve the problems of disengagement, inability to achieve loosening effect, bending of anchor pins, etc., and achieve the effect of reducing production costs.

Inactive Publication Date: 2004-11-03
I T W ESPANA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] When it comes to parts or elements formed from plastic, the unscrewing with the tool must be done gently so as not to damage the threads of the body, whereby the unscrewing effect is often not achieved because it must be applied and removed by pressing with the tool Opposite force, which bends the anchor pin and thus causes disengagement between the threads

Method used

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  • Rivet for the fastening of pieces to the bodywork of a vehicle
  • Rivet for the fastening of pieces to the bodywork of a vehicle
  • Rivet for the fastening of pieces to the bodywork of a vehicle

Examples

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Embodiment Construction

[0024] From the above-mentioned figures, it can be observed how the rivet of the invention consists of two plastic elements, one called the body 1 of the rivet and the other called the shank 2 of the rivet, which are joined to define an integral assembly , but the rod part 2 can move axially relative to the main body 1 .

[0025] In general, the body 1 comprises a head 3, from the rear surface of which projects two transversely expandable pins 4, spaced longitudinally to form respective diametrically opposed recesses 5, as is well known.

[0026] The stem 2 has a head 6 from which it extends, the head 6 having a central recess 7 for handling.

[0027] Thus, according to the features described above, the rivet assembly is characterized in that the body 1 and the shank 2 form a single assembly, and that the shank 2 is able to pass relative to the body 1 and in particular through the hole provided in its head 3 The axial movement is performed whereby these pins 4 are defined axi...

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PUM

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Abstract

The rivet comprises a body (1) with laterally expandable pins (4) and a stem (2) which slides inside the body (1) producing the expansion of the pins (4), to procure an anchoring of the assembly in a housing. The head (6) of the stem (2) and the head (3) of the body (1) have inclined planes (8) and ramps (9), respectively, which in the position of maximum penetration of the stem (2) are coincident and determine an external continuity of the head of the rivet, whilst a rotation of 90 DEG of the stem (2) signifies a sliding of the inclined surfaces and a separation of the head (6) of the stem (2) with respect to the head (3) of the body (1), allowing the drawing of the stem (2) through its head (6) and the dismantling of the body (1) by pulling, as a consequence of the stem (2) having a protuberance (10) which prevents that the same can become independent of the body (1) whereby the pulling of the former results in the extraction and dismantling of the whole assembly of the rivet with respect to the housing in which it is located.

Description

technical field [0001] The present invention relates to a rivet for fastening parts to the body of a motor vehicle, consisting of plastic and comprising a shank and a body with pins generally displaced along the shank along its displacement on the body Expands under the action of pushing in that direction, whereby in that expansion of the pins they serve as means for fixing the rivet in the hole in the vehicle body, thereby fastening the part penetrated by the rivet. [0002] The object of the present invention is to provide a rivet in which the shank and the body form an integral assembly, i.e. they cannot be separated, thereby enabling it to be produced in a single injection molding process and to be removed by simply pulling the shank axially. Carry out component and rivet disassembly together. Background technique [0003] In the automotive industry, certain parts and accessories are fastened to the body of the car through different types of parts, the most common of wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B19/10F16B21/02F16B21/04
CPCF16B21/02
Inventor 阿尔贝特·帕雷斯·伊桑塔
Owner I T W ESPANA