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nut

A nut and screw technology, applied in the field of punching nuts or rivet nuts, welding nuts, can solve the problem of expensive installation of plastic component screws, and achieve the effects of reducing manufacturing costs, simplifying installation, and good alignment

Active Publication Date: 2017-04-12
NEDSCHROEF PLETTENBERG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But the manufacture of the plastic elements and their mounting on the screws is particularly expensive

Method used

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Examples

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Embodiment Construction

[0018] The nut chosen as an example is designed as a weld nut 1 and essentially consists of a head 2 and a shank 3 formed on the head 2 , wherein the head 2 and the shank 3 are penetrated by a through-hole 4 . Inserted in the head 2 is a retaining ring 5 for the non-detachable fastening of a screw 6 .

[0019] The head 2 is substantially hollow-cylindrical and is formed onto the likewise substantially hollow-cylindrical shank 3 , which extends circumferentially beyond the shank. Of course, nut designs are also possible in which the head 2 and the shank 3 have the same outer contour, which can be embodied not only circularly but also polygonally.

[0020] On its underside opposite the shank 3 , a circular solder lug 21 with a triangular cross-section is formed on the head 2 concentrically to the through-opening 4 . The weld lug 21 is used to fasten the nut to a body panel by means of welding. Furthermore, a receptacle 22 for the retaining ring 5 , which is enlarged in diamete...

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PUM

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Abstract

The nut has a head structure (2) and a shaft structure (3) which is formed on the head structure. A through-hole (4) is formed through the head structure and the shaft structure. The through-hole is formed with an enlarged diameter in the area of the head structure. A retainer, into which a hollow cylindrical retaining ring (5) is introduced in order to captively fix the end of a screw (6), is formed. The hollow cylindrical retaining ring is made of plastic or metal sheet.

Description

technical field [0001] The invention relates to a nut, in particular a weld nut, a punch nut or a rivet nut, having a head and a shank formed on the head, wherein the head and the shank are penetrated by a through hole. Background technique [0002] Nuts of the aforementioned type, in particular weld nuts, are used, for example, in vehicle construction to fasten airbags to body parts. For this purpose, weld nuts are welded to the body part, wherein the weld nuts are usually provided with an internal thread. The inflatable airbags are then screwed to the body at various points. When the screw is screwed into the weld nut, a non-positive fit is created, whereby the airbag is securely held on the body. [0003] The installation of airbags takes place in several workflows. To do this, it is first necessary to fasten the corresponding fastening screw only inside the nut. In order that the screw does not fall out during transport in the next working step before final installat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B37/00F16B41/00
CPCF16B37/005F16B41/002
Inventor T.尤尔里克霍尔姆A.尼奎斯特
Owner NEDSCHROEF PLETTENBERG