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Blind nut

By adopting a design that combines a tapered and a straight portion in the tubular part of the blind hole nut, the buckling problem of the existing blind hole nut when installed on parts with a wide range of plate thicknesses is solved, and stable installation on different plate thicknesses is achieved. and high pullout strength.

Active Publication Date: 2013-11-13
NEWFREY LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, in the blind nut of Patent Document 2, the length of the reduced-diameter portion is short, and it is not a component that can be fixed to a mounted component having a wide thickness range.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] Hereinafter, the blind nut 20 according to the embodiment of the present invention will be described with reference to the drawings. image 3 It is a partial front view of the blind nut 20 in the embodiment of the present invention. The blind nut 20 is formed into a cylindrical shape in axial symmetry around the center axis as a whole, and has an internal threaded portion 21 at one end. The internal thread part 21 is formed in a cylindrical shape, and the internal thread 25 is formed inside. The internal thread 25 may be engaged with the external thread of the fastening tool. Moreover, after the blind hole nut 20 is installed, by engaging the external thread of the bolt, other installed components can be installed.

[0061] The blind nut 20 has a tubular portion adjacent to the internal threaded portion 21. The tubular portion is composed of a tapered portion 22 adjacent to the internal thread portion 21 and a cylindrical straight portion 23 adjacent to the tapered porti...

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PUM

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Abstract

There is a blind nut (20) which can be successfully arranged in components to be assembled with a wide range of material thicknesses. The blind nut (20) has an inner threaded portion (21) with threads at the inner side, a hollow tubular portion adjacent to the inner threaded portion and an open flange (24) formed at an opposite end of the tubular portion to the inner threaded portion (21). The inner threaded portion (21) and the tubular portion are inserted in a receiving bore (43) of a component to be assembled (41) to enable the tubular portion to have plastic deformation to expand the diameter locally, whereby the member to be assembled (41) is firmly clamped between a deformed portion (27) of an enlarged diameter and the flange (24) and the blind nut (20) is mounted in the component. The tubular portion has a conical portion (22) adjacent to the inner threaded portion and a cylindrical straight section (23) adjacent to the conical portion. By plastically deforming the blind but, the conical portion (22) and the straight portion (23) are expanded in diameter and the blind nut (20) is arranged on the component to be assembled (41).

Description

Technical field [0001] The invention relates to a blind hole nut, in particular to a blind hole nut which can be installed on a mounted component with a wide range of plate thickness. Background technique [0002] The blind nut includes an internal thread part, a tubular part connected to the internal thread, and a flange provided at the end of the tubular part. With the blind nut inserted into the hole of the component to be mounted, use a tightening tool to make The tubular portion buckles and expands in diameter, and the mounted component is clamped between the bent tubular portion and the flange portion, thereby fixing the blind nut to the mounted component. The internal thread of the blind hole nut is engaged with the external thread of the bolt, and other installed components can be installed. [0003] Since the blind hole nut can be operated on the side of the mounted component, it is convenient for components that cannot be operated from the back side, for example, when ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B37/04
CPCF16B37/02F16B19/10F16B35/04F16B37/06F16B5/065F16B37/067F16B37/04
Owner NEWFREY LLC