[특허]Variable clamp fastener and method

[미국특허] Variable clamp fastener and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16B-019/08
출원번호	US-0282875 (1988-12-09)
발명자 / 주소	Dixon Richard D. (San Juan Capistrano CA)
출원인 / 주소	Huck Manufacturing Company (Irvine CA 02)
인용정보	피인용 횟수 : 51 인용 특허 : 23

초록 ▼

A fastening system including a two piece swage type fastener including a pin and a collar adapted to be swaged into lock grooves in the pin and in which the lock grooves are helical and with the collar having a limited female thread which is threadably engageable with the helical lock grooves for variably clamping work pieces to be secured prior to swage, with the collar thread being deformable in response to a relative axial load between the pin and collar at the initiation of the swage operation but prior to swaging and in which the lock grooves are shallow and have a ratio of (h/Du)×102 of four (4) or less and in which the lock grooves have a simulated streamlined root contour, with the collar having a wall thickness defining a volume of material sufficient to provide overpacking of the shallow grooves of around 16%, and with the pin and collar materials having ultimate shear strengths in a ratio of around 1.8:1 to 2.4:1 and with the width of the shallow grooves and intervening shoulders being generally in accordance with the shear strength ratio between the pin and collar.

대표청구항 ▼

In a fastening system including a fastener for securing workpieces together with a selectively variable clamp with said fastener adapted to be finally installed via a relative axial force applied by a pull tool, said fastener comprising: a pin member having an elongated shank terminating at one end in an enlarged pin head, said shank including a pull portion located at the opposite end from said pin head, a straight smooth shank portion located adjacent said enlarged pin head, a plurality of helically extending lock grooves defining a thread form located adjacent said straight shank portion, a breakneck groove defining the weakest portion of said pin shank and located between said pull portion and said lock grooves, a tubular collar adapted to be located on said pin shank and to be swaged into said lock grooves in response to a first preselected magnitude of said relative axial force applicable by the pull tool, said collar having a through bore of a diameter to generally receive said pull portion and said lock grooves in clearance relationship, said collar having a limited female thread formed on said through bore and adapted to threadably engage said thread form defined by said lock grooves, said collar and said pin member having first and second wrenching surfaces adapted to be gripped by a wrenching tool whereby said collar can be torqued onto said lock groove portion to selectively clamp or locate the workpieces relative to each other more or less under a selectively variable torque whereby the workpieces can be selectively adjusted or aligned, said limited collar thread having a preselected strength selected to deform out of said lock grooves in response to a second preselected magnitude of said relative axial force applied between said pin member and said collar by the pull tool with said second preselected magnitude being less than said first preselected magnitude whereby said collar can be moved axially over said pin member after deformation of said limited collar thread and prior to initiation of swaging of said collar into said lock grooves.

이 특허에 인용된 특허 (23) 인용/피인용 타임라인 분석

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Jarman Davis R. (612 Ward Dr. Brunswick GA 31520) Hinson Virgil H. (206 Fairway Oak Brunswick GA 31520), Floor anchor.
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Ruhl John H. (Tustin CA) Dixon Richard D. (San Juan Capistrano CA), Optimized fastener construction system and method.
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Tausig Wayne R. (Oxnard CA), Seafloor attachment bolts.
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Stencel Edgar L. (Huntington Beach CA), Self-locking fastener, fastener system, and process.
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Williamson Herman L. (Seal Beach CA), Torque-limited threaded locking fastener, and method for setting the same.
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Mercer, Larry D.; Corbett, Robert J., Collet for a low swage load fastening system.
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Haylock, Luke; Pinheiro, Rodrigo; Mulazimoglu, Hasim; March, Michael, Enhanced conductivity sleeved fastener and method for making same.
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Corbett, Robert J., Fastener and fastener installation tool.
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Polubinski,James Gerald; Jakuszeski,Gerard; Harris,David A.; Jungman,Jeffrey, Fastener assembly.
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Kamal, Manish; Haylock, Luke; Mulazimoglu, Hasim; Liebscher, Andreas; Rizza, Gregory; Pinheiro, Rodrigo, Fasteners with coated and textured pin members.
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Fulbright, David J., Installation tool for installing swage type threaded fasteners.
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Ishii Kanji,JPX ; Yoshimura Tatsuhiko,JPX ; Sakai Tomotsugu,JPX ; Hamada Masahiko,JPX, Joining jig and joining member coupling method using the joining jig.
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[미국특허] Variable clamp fastener and method 원문보기

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