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Blind fastener and nose assembly for installation thereof

A fastener and component technology, applied in the direction of threaded fasteners, deformable fasteners, connecting components, etc., can solve problems such as expensive and inefficient manufacturing

Inactive Publication Date: 2010-03-10
ALCOA GLOBAL FASTENERS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of these fasteners are inefficient and expensive to manufacture
Furthermore, there is always a need to limit the weight of products used in the aerospace industry

Method used

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  • Blind fastener and nose assembly for installation thereof
  • Blind fastener and nose assembly for installation thereof
  • Blind fastener and nose assembly for installation thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0030] A concealed fastener 10 is disclosed for securing a plurality of workpieces having accessible side workpieces and concealed side workpieces. The concealed fastener 10 includes at least a core bolt 12 , a body sleeve member 14 and a bent sleeve member 16 .

[0031] Core bolt 12 of fastener 10 has an elongated shank 18 extending through aligned openings 20 and 22 in the pair of workpieces (accessible side workpiece 24 and concealed side workpiece 26 ) to be secured together. The elongated rod has a smooth rod portion 32 and a threaded portion 28 at one end of the rod. The diameter of the threaded portion 28 of the rod 18 is similar to the diameter of the smooth portion 32 of the rod 18 adjacent to the threaded portion 28 . The core bolt 12 is provided with a head 34 adjacent to the smooth portion 32 .

[0032] Various configurations are available for the head 34 of the core bolt 12 . Such as Figure 4 As shown in , the head of the core bolt includes a tapered portion ...

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PUM

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Abstract

A blind fastener for securing a plurality of workpieces is disclosed. The blind fastener comprises several components, a core bolt, a body sleeve member and a buckle sleeve member. The core bolt includes a tool engaging portion to engage the head of a driver on a installation tool. The buckle sleeve member has a buckle portion designed to create a bulb fastening the workpieces together. In some embodiments, a the buckle portion is locally annealed to promote formation of a blind side bulb. A nose assembly with a matching anti-rotation engagement to the head of the body sleeve member is also disclosed.

Description

[0001] related application [0002] This application claims the benefit and priority of US Application No. 11 / 841822, filed August 20, 2007, the contents of which are hereby incorporated by reference in their entirety. technical field [0003] A blind fastener and associated installation method for securing a plurality of workpieces is disclosed. More specifically, a concealed fastener including a core bolt, a body sleeve member, and a bent sleeve member is disclosed. Background technique [0004] Concealed fasteners are often used to secure workpieces together when access to the concealed side of one of the workpieces is not otherwise possible. Artifacts that are accessible to the end user are called accessible side artifacts, and artifacts that are not accessible to the end user are called hidden side artifacts. [0005] Concealed fasteners have a wide variety of applications in the aerospace industry. In aerospace applications, the concealed fastener assembly of the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B13/04
CPCF16B29/00F16B19/1054
Inventor G·胡夫纳格尔L·海洛克
Owner ALCOA GLOBAL FASTENERS
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