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FR2740516B3 - SCREW STRUCTURE - Google Patents

SCREW STRUCTURE

Info

Publication number
FR2740516B3
FR2740516B3 FR9512800A FR9512800A FR2740516B3 FR 2740516 B3 FR2740516 B3 FR 2740516B3 FR 9512800 A FR9512800 A FR 9512800A FR 9512800 A FR9512800 A FR 9512800A FR 2740516 B3 FR2740516 B3 FR 2740516B3
Authority
FR
France
Prior art keywords
screw structure
screw
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.)
Expired - Lifetime
Application number
FR9512800A
Other languages
French (fr)
Other versions
FR2740516A3 (en
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.)
Individual
Original Assignee
Individual
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
Priority to DE29513571U priority Critical patent/DE29513571U1/en
Application filed by Individual filed Critical Individual
Priority to FR9512800A priority patent/FR2740516B3/en
Priority to GB9613342A priority patent/GB2304849B/en
Publication of FR2740516A3 publication Critical patent/FR2740516A3/en
Application granted granted Critical
Publication of FR2740516B3 publication Critical patent/FR2740516B3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06—Specially-shaped heads
    • F16B35/065—Specially-shaped heads with self-countersink-cutting means
    • 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
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
    • F16B25/0015—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a soft organic material, e.g. wood or plastic
    • 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
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
    • F16B25/0068—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw with multiple-threads, e.g. a double thread screws
    • 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
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
    • F16B25/0073—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw characterised by its pitch, e.g. a varying pitch

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Connection Of Plates (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
  • Materials For Medical Uses (AREA)
FR9512800A 1995-08-24 1995-10-30 SCREW STRUCTURE Expired - Lifetime FR2740516B3 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE29513571U DE29513571U1 (en) 1995-08-24 1995-08-24 screw
FR9512800A FR2740516B3 (en) 1995-08-24 1995-10-30 SCREW STRUCTURE
GB9613342A GB2304849B (en) 1995-08-24 1996-06-26 A screw structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29513571U DE29513571U1 (en) 1995-08-24 1995-08-24 screw
FR9512800A FR2740516B3 (en) 1995-08-24 1995-10-30 SCREW STRUCTURE

Publications (2)

Publication Number Publication Date
FR2740516A3 FR2740516A3 (en) 1997-04-30
FR2740516B3 true FR2740516B3 (en) 1997-09-26

Family

ID=26058159

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9512800A Expired - Lifetime FR2740516B3 (en) 1995-08-24 1995-10-30 SCREW STRUCTURE

Country Status (3)

Country Link
DE (1) DE29513571U1 (en)
FR (1) FR2740516B3 (en)
GB (1) GB2304849B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999017908A1 (en) * 1997-10-07 1999-04-15 Fcd (Holdings) Pty. Limited A tool and countersinking screw
DE19807926A1 (en) * 1998-02-25 1999-09-09 Hettich Ludwig & Co screw
GB2336415A (en) * 1998-04-14 1999-10-20 Kenneth Williams Self countersinking screw
GB2333567B (en) * 1998-04-28 1999-12-08 T I Midwood & Co Ltd Brass woodscrew
AUPQ727500A0 (en) * 2000-05-03 2000-05-25 Itw Australia Pty Ltd A screw fastener
GB0129141D0 (en) * 2001-12-05 2002-01-23 Gell Terry Screw
EP1881209B1 (en) * 2006-07-20 2008-10-08 Kuo-Tai Hsu Wood screw with cutting teeth on threads and groove in shank
DE102006057259A1 (en) 2006-11-22 2008-05-29 Swg Schraubenwerk Gaisbach Gmbh screw
DE102008057678A1 (en) 2008-11-17 2010-05-20 Markus Rensburg Screw for use in e.g. timber work, has thread rolled on region, where folded thread is provided in tip region of thread and expanding units i.e. cutting ribs, are provided in another region, above thread and below screw shaft
EP2735746A1 (en) * 2012-11-23 2014-05-28 Peak Innovation Limited Screw, assembly, and method of screwing a screw in an object

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE530258A (en) * 1953-07-09
NL280707A (en) * 1961-11-23
GB1409984A (en) * 1973-03-08 1975-10-15 Pioneer Screw Nut Co Thread-forming self-locking fastener
JPH041371Y2 (en) * 1987-02-16 1992-01-17
US5273383A (en) * 1991-04-04 1993-12-28 Research Engineering & Manufacturing, Inc. Threaded fastener for use in thermoplastics and roll die for producing same
US5199839A (en) * 1991-10-09 1993-04-06 Abbott-Interfast Corporation Fastener screw having improved installation and self-locking characteristics
FR2725252B1 (en) * 1994-10-04 1996-12-27 Vynex Sa SELF-DRILLING COUNTERSUNK HEAD SCREWS

Also Published As

Publication number Publication date
FR2740516A3 (en) 1997-04-30
DE29513571U1 (en) 1995-12-14
GB9613342D0 (en) 1996-08-28
GB2304849A (en) 1997-03-26
GB2304849B (en) 1999-07-28

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