DK0824198T3 - Self-drilling screw - Google Patents

Self-drilling screw

Info

Publication number
DK0824198T3
DK0824198T3 DK97113622T DK97113622T DK0824198T3 DK 0824198 T3 DK0824198 T3 DK 0824198T3 DK 97113622 T DK97113622 T DK 97113622T DK 97113622 T DK97113622 T DK 97113622T DK 0824198 T3 DK0824198 T3 DK 0824198T3
Authority
DK
Denmark
Prior art keywords
screw
cutting edge
edge
self
point area
Prior art date
Application number
DK97113622T
Other languages
Danish (da)
Inventor
Armin Schuster
Original Assignee
Wuerth Adolf Gmbh & Co Kg
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 Wuerth Adolf Gmbh & Co Kg filed Critical Wuerth Adolf Gmbh & Co Kg
Application granted granted Critical
Publication of DK0824198T3 publication Critical patent/DK0824198T3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/027—Rolling of self-tapping 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
    • F16B25/001—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
    • F16B25/0057—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 the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections
    • 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
    • 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
    • F16B25/0084—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 geometric details of the tip
    • 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
    • F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dowels (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Drilling Tools (AREA)
  • Forging (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Insulators (AREA)
  • Connection Of Plates (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

The point area (3) has at least one cutting edge (6), which is rolled when the thread (2) is produced. The cutting edge is located in the cover line of the screw point area. The cutting edge commences at the point of the screw, and is formed by an edge of a recess. The cutting edge is located in a plane with the screw longitudinal axis and is formed by the edge of a steep thread. A cylindrical intermediate section is arranged between the point area and the screw shaft, which evolves in a blunt conical manner into the screw shaft.
DK97113622T 1996-08-15 1997-08-07 Self-drilling screw DK0824198T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19632838A DE19632838A1 (en) 1996-08-15 1996-08-15 Screw with a self-drilling tip

Publications (1)

Publication Number Publication Date
DK0824198T3 true DK0824198T3 (en) 2002-11-25

Family

ID=7802662

Family Applications (1)

Application Number Title Priority Date Filing Date
DK97113622T DK0824198T3 (en) 1996-08-15 1997-08-07 Self-drilling screw

Country Status (8)

Country Link
EP (1) EP0824198B1 (en)
CN (1) CN1174944A (en)
AT (1) ATE226693T1 (en)
DE (2) DE19632838A1 (en)
DK (1) DK0824198T3 (en)
ES (1) ES2187706T3 (en)
PT (1) PT824198E (en)
TW (1) TW467213U (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19807926A1 (en) * 1998-02-25 1999-09-09 Hettich Ludwig & Co screw
DE10039011A1 (en) * 2000-08-10 2002-02-21 Wuerth Adolf Gmbh & Co Kg Bolt element producing process involves measuring out wire pin, fitting it between two roll jaws and rolling wire pin to reduced diameter in one sector
DE102006034583A1 (en) * 2006-07-26 2008-01-31 Ejot Gmbh & Co. Kg Hole and thread forming screw
DE102006034584A1 (en) * 2006-07-26 2008-01-31 Ejot Gmbh & Co. Kg Hole and thread forming 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
DE102009023111A1 (en) 2009-05-28 2010-12-02 Ejot Baubefestigungen Gmbh Hole and thread forming screw
EP2395251B1 (en) * 2010-06-10 2013-04-10 Fong Prean Industrial Co., Ltd. Crack-proof screw
TWI361861B (en) * 2010-10-25 2012-04-11 Taiwan Shan Yinint L Co Lto Screw
CN102878175B (en) * 2012-10-24 2015-05-27 长安大学 Self-tapping and self-locking timber bolt pike
DE102016112357A1 (en) 2016-07-06 2018-01-11 Spax International Gmbh & Co. Kg "Anchors screw"
CH713769A1 (en) 2017-05-12 2018-11-15 Profix Ag Wood screw.
CN107882837A (en) * 2017-11-27 2018-04-06 海盐县奕涵标准件厂 A kind of anti-fast screw of penetration rate that gets rusty
JP7190161B2 (en) * 2018-10-10 2022-12-15 若井ホールディングス株式会社 wood screw
CN113814345A (en) * 2021-09-18 2021-12-21 上海洋洋大多利五金制品有限公司 Production process of self-tapping and self-drilling screw with strong fixing force

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE620370A (en) * 1961-11-23
NL292356A (en) * 1962-05-07
FR1594135A (en) * 1968-12-05 1970-06-01
US3937120A (en) * 1975-01-28 1976-02-10 Microdot Inc. Drill screw
JPS5597513A (en) * 1979-01-17 1980-07-24 Topura Kk Selffdrilling screw
DE3365298D1 (en) * 1982-09-02 1986-09-18 Rockenfeller Kg Wood-screw
DE3481211D1 (en) * 1983-10-14 1990-03-08 Alfons Knoche UNIVERSAL SCREW.
JPS60179512A (en) * 1984-02-24 1985-09-13 株式会社ヤマヒロ Self-drilling screw and its casting die
JPH041371Y2 (en) * 1987-02-16 1992-01-17
EP0319812A1 (en) * 1987-11-28 1989-06-14 Adolf Würth GmbH & Co. KG Self-drilling screw
JP2556982Y2 (en) * 1991-04-06 1997-12-08 株式会社ヤマヒロ Self-drilling screw with double cutting edge
US5205466A (en) * 1992-07-15 1993-04-27 Chieh-Chang Tzeng Manufacturing method of austenitic stainless steel self-tapping and self-drilling screw
JPH07127616A (en) * 1993-10-28 1995-05-16 Murata Sangyo Kk Screw, manufacture of screw and screw rolling

Also Published As

Publication number Publication date
ATE226693T1 (en) 2002-11-15
ES2187706T3 (en) 2003-06-16
EP0824198B1 (en) 2002-10-23
DE59708545D1 (en) 2002-11-28
EP0824198A1 (en) 1998-02-18
DE19632838A1 (en) 1998-02-19
TW467213U (en) 2001-12-01
PT824198E (en) 2003-03-31
CN1174944A (en) 1998-03-04

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