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ES446572A1 - Drill screws - Google Patents

Drill screws

Info

Publication number
ES446572A1
ES446572A1 ES76446572A ES446572A ES446572A1 ES 446572 A1 ES446572 A1 ES 446572A1 ES 76446572 A ES76446572 A ES 76446572A ES 446572 A ES446572 A ES 446572A ES 446572 A1 ES446572 A1 ES 446572A1
Authority
ES
Spain
Prior art keywords
projection means
hardness
thread
tip
materials
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
Application number
ES76446572A
Other languages
Spanish (es)
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.)
WA Deutsher Pty Ltd
Original Assignee
WA Deutsher Pty Ltd
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 WA Deutsher Pty Ltd filed Critical WA Deutsher Pty Ltd
Publication of ES446572A1 publication Critical patent/ES446572A1/en
Expired 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
    • F16B35/041—Specially-shaped shafts
    • 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
    • F16B25/0031—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 screw being designed to be screwed into different materials, e.g. a layered structure or through metallic and wooden parts
    • 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
    • F16B25/0089—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw the screw having wings
    • 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
    • F16B25/103—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a drilling screw-point, i.e. with a cutting and material removing action

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Forging (AREA)
  • Connection Of Plates (AREA)
  • Drilling Tools (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

A screw adapted to hold two or more juxtaposed workpieces comprising a tip, a body, and a head, a screw nut over a substantial part of the length of the body, and means projecting from a part of the body that is between the tip and the thread, the projection means being integral with the body and operative in materials of hardness less than a predetermined hardness to form a hole having a diameter at least as large as the pitch diameter of the thread, but connecting so weakly to the body that, in materials of greater hardness than the predetermined one, the projection means are split, characterized in that the projection means have a non-rectangular configuration and are such that after splitting substantially none of the projection means is left. Project beyond the body. (Machine-translation by Google Translate, not legally binding)
ES76446572A 1975-04-02 1976-03-31 Drill screws Expired ES446572A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPC108375 1975-04-02

Publications (1)

Publication Number Publication Date
ES446572A1 true ES446572A1 (en) 1977-06-16

Family

ID=3766151

Family Applications (1)

Application Number Title Priority Date Filing Date
ES76446572A Expired ES446572A1 (en) 1975-04-02 1976-03-31 Drill screws

Country Status (9)

Country Link
JP (1) JPS51123461A (en)
AU (1) AU1224676A (en)
CA (1) CA1042243A (en)
DE (1) DE2613720C2 (en)
ES (1) ES446572A1 (en)
FR (1) FR2306362A1 (en)
GB (1) GB1513085A (en)
IT (1) IT1058887B (en)
SE (1) SE441382B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT369871B (en) * 1980-09-30 1983-02-10 Sfs Stadler Ag SELF-DRILLING SCREW
DE3346704A1 (en) * 1983-12-23 1985-07-04 Richter-System GmbH & Co KG, 6103 Griesheim SELF-TAPING QUICK-SCREW SCREW
US4625473A (en) * 1985-02-22 1986-12-02 Berntsen, Inc. Anti-twist rod section and method of using the same in survey monument placement
JPH02101112U (en) * 1989-01-26 1990-08-13
US5046905A (en) * 1989-07-06 1991-09-10 Emhart Inc. Winged drill screw
DE4112591C1 (en) * 1991-04-17 1992-08-27 Sfs Stadler Holding Ag, Heerbrugg, Ch
CH687036A5 (en) * 1993-01-25 1996-08-30 Spreiter Johann Ulrich Bolts.
WO2007134361A1 (en) * 2006-05-19 2007-11-29 Itw Australia Pty Ltd Clearance hole cutting screw
AU2007201924B2 (en) * 2006-05-19 2010-08-12 Illinois Tool Works Inc. Screw

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1506798A1 (en) * 1966-04-14
ZA738037B (en) * 1972-10-30 1975-07-30 Deutsher Pty Ltd Drill screw

Also Published As

Publication number Publication date
FR2306362B3 (en) 1978-12-22
JPS541852B2 (en) 1979-01-30
AU1224676A (en) 1977-10-13
FR2306362A1 (en) 1976-10-29
SE441382B (en) 1985-09-30
SE7603878L (en) 1976-10-03
JPS51123461A (en) 1976-10-28
DE2613720C2 (en) 1986-09-11
DE2613720A1 (en) 1976-10-14
CA1042243A (en) 1978-11-14
IT1058887B (en) 1982-05-10
GB1513085A (en) 1978-06-07

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