CA2308074A1 - Spiral drive system for threaded fasteners - Google Patents

Spiral drive system for threaded fasteners Download PDF

Info

Publication number
CA2308074A1
CA2308074A1 CA002308074A CA2308074A CA2308074A1 CA 2308074 A1 CA2308074 A1 CA 2308074A1 CA 002308074 A CA002308074 A CA 002308074A CA 2308074 A CA2308074 A CA 2308074A CA 2308074 A1 CA2308074 A1 CA 2308074A1
Authority
CA
Canada
Prior art keywords
drive system
threaded fasteners
driver
spiral drive
spiral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002308074A
Other languages
French (fr)
Other versions
CA2308074C (en
Inventor
W. Dodd Stacy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phillips Screw Co
Original Assignee
Phillips Screw Company
W. Dodd Stacy
Creare Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phillips Screw Company, W. Dodd Stacy, Creare Inc. filed Critical Phillips Screw Company
Publication of CA2308074A1 publication Critical patent/CA2308074A1/en
Application granted granted Critical
Publication of CA2308074C publication Critical patent/CA2308074C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/005—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with cross- or star-shaped cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/003—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool star-shaped or multi-lobular, e.g. Torx-type, twelve-point star
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/919—Screw having driving contacts

Abstract

A spiral drive system for threaded fasteners (10) includes driver-engageable surfaces on the head end (16) of the fastener (10) in which at least some of the driver-engageable surfaces are defined by a spiral segment (8) configured to maximize torque transmission while spreading the driving load over a broad driver-fastener interface to reduce the risk of development of high stress regions. Drivers (4) and related tooling also are disclosed.
CA002308074A 1997-10-31 1998-10-28 Spiral drive system for threaded fasteners Expired - Lifetime CA2308074C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/961,626 1997-10-31
US08/961,626 US5957645A (en) 1997-10-31 1997-10-31 Spiral drive system for threaded fasteners
PCT/US1998/022864 WO1999023389A1 (en) 1997-10-31 1998-10-28 Spiral drive system for threaded fasteners

Publications (2)

Publication Number Publication Date
CA2308074A1 true CA2308074A1 (en) 1999-05-14
CA2308074C CA2308074C (en) 2007-09-04

Family

ID=25504768

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002308074A Expired - Lifetime CA2308074C (en) 1997-10-31 1998-10-28 Spiral drive system for threaded fasteners

Country Status (20)

Country Link
US (3) US5957645A (en)
EP (1) EP1025370B1 (en)
JP (3) JP4801837B2 (en)
KR (1) KR100624635B1 (en)
CN (1) CN1103002C (en)
AT (1) ATE257222T1 (en)
AU (1) AU751686B2 (en)
BR (1) BR9813889A (en)
CA (1) CA2308074C (en)
CZ (1) CZ298473B6 (en)
DE (1) DE69820893T2 (en)
EA (1) EA001555B1 (en)
ES (1) ES2210839T3 (en)
GE (1) GEP20022863B (en)
HU (1) HU226834B1 (en)
IL (3) IL135871A (en)
MX (1) MXPA00004143A (en)
PL (6) PL196610B1 (en)
RS (1) RS49862B (en)
WO (1) WO1999023389A1 (en)

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Also Published As

Publication number Publication date
PL196609B1 (en) 2008-01-31
CA2308074C (en) 2007-09-04
IL135871A0 (en) 2001-05-20
EA001555B1 (en) 2001-04-23
KR20010031637A (en) 2001-04-16
IL166160A0 (en) 2006-01-15
AU1283999A (en) 1999-05-24
DE69820893D1 (en) 2004-02-05
ATE257222T1 (en) 2004-01-15
EA200000477A1 (en) 2000-10-30
JP2002525500A (en) 2002-08-13
IL166159A (en) 2009-09-01
JP5536163B2 (en) 2014-07-02
KR100624635B1 (en) 2006-09-18
CN1283255A (en) 2001-02-07
HUP0204102A2 (en) 2003-03-28
PL194608B1 (en) 2007-06-29
ES2210839T3 (en) 2004-07-01
MXPA00004143A (en) 2006-03-02
CZ20001556A3 (en) 2001-05-16
AU751686B2 (en) 2002-08-22
EP1025370B1 (en) 2004-01-02
IL166159A0 (en) 2006-01-15
GEP20022863B (en) 2002-12-25
PL196610B1 (en) 2008-01-31
CZ298473B6 (en) 2007-10-10
IL135871A (en) 2005-06-19
JP4801837B2 (en) 2011-10-26
PL196611B1 (en) 2008-01-31
US5957645A (en) 1999-09-28
HU226834B1 (en) 2009-12-28
IL166160A (en) 2007-12-03
WO1999023389A1 (en) 1999-05-14
US6234914B1 (en) 2001-05-22
DE69820893T2 (en) 2004-11-18
CN1103002C (en) 2003-03-12
PL196608B1 (en) 2008-01-31
YU24700A (en) 2003-01-31
PL340302A1 (en) 2001-01-29
JP2013014000A (en) 2013-01-24
JP2010249321A (en) 2010-11-04
RS49862B (en) 2008-08-07
BR9813889A (en) 2000-09-26
EP1025370A1 (en) 2000-08-09
PL196601B1 (en) 2008-01-31
US6367358B1 (en) 2002-04-09

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Effective date: 20181029