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Pull stem hi-lite pin with pull groove for swaging collars

一种紧固件、模锻的技术，应用在螺纹紧固件、连接构件、螺钉等方向，能够解决增加航空器生产费用等问题

Inactive Publication Date: 2007-08-15
HI SHEAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

stocking and using multiple types of fasteners can add significantly to aircraft production costs

Method used

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  • Pull stem hi-lite pin with pull groove for swaging collars
  • Pull stem hi-lite pin with pull groove for swaging collars
  • Pull stem hi-lite pin with pull groove for swaging collars

Examples

Experimental program
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Embodiment Construction

[0027] As shown in the drawings for illustrative purposes, the invention is implemented as a fastener having a threaded shaft portion and a tie rod portion. The fastener may be mounted to at least one workpiece by swaging a collar onto the threaded shaft portion or by threading an internally threaded device such as a nut or threaded collar onto the threaded shaft portion. Referring to the drawings, wherein like reference numerals are used to designate like or corresponding elements throughout the several views, FIG. 1 depicts a tie rod fastener 20 of the present invention. Fastener 20 includes an enlarged protruding head substantially concentric with longitudinal axis 23 of the fastener and located at the proximal end of the fastener. The head may include a distal face 24 adapted to contact a surface 26 of a workpiece 28 (FIG. 2). Although the head 22 is depicted in FIG. 1 as having a flat head configuration, the present invention is not limited to such configurations but may...

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PUM

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Abstract

A fastener for installation into a workpiece which may be installed by either a swaging operation or a torquing operation. The fastener includes an enlarged protruding head which is proximal to a substantially cylindrical smooth shank portion. A threaded shank portion positioned distal to the smooth shank portion includes a male thread which is sufficiently strong to have a swage collar swaged onto it. Distal to the threaded shank portion is a pin tail portion having a surface which is configured to engage a tool. Positioned between the threaded shank portion and the pin tail portion is a breakneck groove having a lower tensile strength than any other portion of the fastener. The tensile strength of the breakneck groove is controlled such that the fastener severs within the breakneck groove when a preset range of tension is applied to the pin tail portion by the tool.

Description

technical field [0001] The present invention relates generally to fasteners, and more particularly to a tie-rod fastener capable of having swage collars swaged thereon, or capable of having internal threads such as nuts or threaded collars The device is screwed onto it. Background technique [0002] Fasteners used in the aerospace industry include those installed by a swaging operation, as well as those on which internally threaded devices such as nuts or threaded collars are threaded. Die forging is a process of reducing the cross-sectional area of ​​a part by applying a compressive force to the outer surface of a part using a hammer or ram tool. The swaging operation for a fastener involves sliding a swage collar over a portion of the fastener that has a series of key grooves. The swaged collar includes an inner surface that is typically smooth and of sufficient size to fit over the lock groove of the fastener with a loose fit. The swage collar is also of sufficient thi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B19/05B21J15/02F16B35/00F16B37/02
CPCF16B19/05B21J15/022Y10T29/49948Y10T29/49956
Inventor D·舒尔茨
Owner HI SHEAR
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