IE802443L - Self-drilling screw - Google Patents

Self-drilling screw

Info

Publication number
IE802443L
IE802443L IE802443A IE244380A IE802443L IE 802443 L IE802443 L IE 802443L IE 802443 A IE802443 A IE 802443A IE 244380 A IE244380 A IE 244380A IE 802443 L IE802443 L IE 802443L
Authority
IE
Ireland
Prior art keywords
self
drilling screw
screw shank
drill screw
teeth
Prior art date
Application number
IE802443A
Other versions
IE51184B1 (en
Original Assignee
Illinois Tool Works
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 Illinois Tool Works filed Critical Illinois Tool Works
Priority to IE1222/86A priority Critical patent/IE51185B1/en
Priority to IE1223/86A priority patent/IE51186B1/en
Publication of IE802443L publication Critical patent/IE802443L/en
Publication of IE51184B1 publication Critical patent/IE51184B1/en

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/12—Cutters specially designed for producing particular profiles
    • B23C5/14—Cutters specially designed for producing particular profiles essentially comprising curves
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Drilling Tools (AREA)
  • Milling Processes (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Dental Preparations (AREA)
  • Dowels (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Forging (AREA)

Abstract

A rotary milling cutter 50, for fluting a drill screw shank, has a plurality of peripherally positioned cutting teeth 52, the outer extremity of each of said teeth 52 being formed as a semicircle 54 with a rib 56 formed thereon and each of said ribs 56 having an arcuate configuration whereby, in use, the drill screw shank is shaped to present a flute 16, 18 having at least one longitudinally-extending chip-breaking trough 46, 48. <IMAGE> [GB2101022A]
IE2443/80A 1979-11-26 1980-11-25 Self-drilling fasteners and flute configurations therefor IE51184B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IE1222/86A IE51185B1 (en) 1979-11-26 1980-11-25 Fluting a drill screw shank to form a chip-breaking trough
IE1223/86A IE51186B1 (en) 1979-11-26 1980-11-25 Pointing a drill screw shank to form a generally convex-sided point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9746079A 1979-11-26 1979-11-26

Publications (2)

Publication Number Publication Date
IE802443L true IE802443L (en) 1981-05-26
IE51184B1 IE51184B1 (en) 1986-10-29

Family

ID=22263470

Family Applications (1)

Application Number Title Priority Date Filing Date
IE2443/80A IE51184B1 (en) 1979-11-26 1980-11-25 Self-drilling fasteners and flute configurations therefor

Country Status (24)

Country Link
JP (1) JPS5686217A (en)
AR (1) AR224552A1 (en)
AT (1) AT380733B (en)
AU (1) AU539311B2 (en)
BE (1) BE886331A (en)
BR (1) BR8007606A (en)
CA (1) CA1175688A (en)
CH (1) CH640318A5 (en)
DE (1) DE3044001A1 (en)
DK (1) DK151590C (en)
ES (1) ES263215Y (en)
FI (1) FI77094C (en)
FR (1) FR2470281B1 (en)
GB (3) GB2101022B (en)
IE (1) IE51184B1 (en)
IT (1) IT1134443B (en)
LU (1) LU82954A1 (en)
MX (2) MX171209B (en)
NL (1) NL8006295A (en)
NO (1) NO158554C (en)
NZ (1) NZ195635A (en)
PT (1) PT72081B (en)
SE (1) SE8007945L (en)
ZA (1) ZA806860B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4565475A (en) * 1979-11-26 1986-01-21 Illinois Tool Works Inc. Drill point milling machine and method
DE3022187C2 (en) 1980-06-13 1983-08-11 Itw-Ateco Gmbh, 2000 Norderstedt Drilling screw
GB2100628B (en) * 1981-06-25 1985-04-11 Shinjo Seisakusho Yk A drill screw
US4395173A (en) * 1981-06-30 1983-07-26 Illinois Tool Works Inc. Drill screw with protective burrs
JP2865823B2 (en) * 1990-07-23 1999-03-08 国分化学工業株式会社 Drill screw
CH686637A5 (en) * 1992-06-18 1996-05-15 Mungo Befestigungstech Ag Schraubhulse.
DE102016222937A1 (en) * 2016-11-21 2018-05-24 Swg Schraubenwerk Gaisbach Gmbh Wood screw and method of making a wood screw

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1294268A (en) * 1915-08-26 1919-02-11 Edward C Holmes Screw-spike.
US2479730A (en) * 1944-05-10 1949-08-23 Lockheed Aircraft Corp Screw
GB788745A (en) * 1955-05-18 1958-01-08 Ronald Fredrick Cox Improved twist drill
GB911025A (en) * 1959-10-30 1962-11-21 Gunther Claas Method for the production of cutting tools
US3463045A (en) * 1966-05-10 1969-08-26 Illinois Tool Works Drilling screw
GB1283834A (en) * 1970-04-23 1972-08-02 Le Metallichesky Zd Im Xxii Si Milling cutters
US3789725A (en) * 1971-10-06 1974-02-05 B Lindstrom Self-drilling and self-tapping fastener and method of manufacture thereof
US3786713A (en) * 1971-10-15 1974-01-22 Illinois Tool Works Chip breaker drill screw
FR2174350A5 (en) * 1972-02-29 1973-10-12 Gresset Andre
US3933075A (en) * 1973-08-08 1976-01-20 Elco Industries, Inc. Self-drilling fastener and method of making same
GB1574126A (en) * 1977-02-21 1980-09-03 Grinding Aids Ltd Cutting tool for a mchine tool
US4147088A (en) * 1977-03-16 1979-04-03 Nl Industries, Inc. Drill screw
JPS61567Y2 (en) * 1978-01-18 1986-01-10
JPS6128886Y2 (en) * 1978-02-20 1986-08-27
US4295768A (en) * 1979-09-21 1981-10-20 Usm Corporation Chip breaker screws

Also Published As

Publication number Publication date
ES263215Y (en) 1983-07-01
IT8026206A0 (en) 1980-11-25
JPS5686217A (en) 1981-07-13
GB2101022B (en) 1984-05-10
NO158554B (en) 1988-06-20
GB2100157A (en) 1982-12-22
FR2470281B1 (en) 1985-12-06
DE3044001C2 (en) 1991-08-29
IE51184B1 (en) 1986-10-29
JPS6255006B2 (en) 1987-11-18
CH640318A5 (en) 1983-12-30
NO158554C (en) 1988-09-28
CA1175688A (en) 1984-10-09
LU82954A1 (en) 1981-06-04
ZA806860B (en) 1982-06-30
MX171209B (en) 1993-10-07
NL8006295A (en) 1981-06-16
FI803666L (en) 1981-05-27
NZ195635A (en) 1986-03-14
GB2100157B (en) 1984-08-01
NO803548L (en) 1981-05-27
FI77094C (en) 1989-01-10
FR2470281A1 (en) 1981-05-29
GB2063731A (en) 1981-06-10
AR224552A1 (en) 1981-12-15
DE3044001A1 (en) 1981-06-04
AT380733B (en) 1986-06-25
DK151590C (en) 1988-05-30
GB2063731B (en) 1984-07-25
ES263215U (en) 1983-01-01
MX152777A (en) 1986-05-21
DK502480A (en) 1981-05-27
AU539311B2 (en) 1984-09-20
FI77094B (en) 1988-09-30
DK151590B (en) 1987-12-14
GB2101022A (en) 1983-01-12
PT72081A (en) 1980-12-01
PT72081B (en) 1981-11-02
BE886331A (en) 1981-05-25
IT1134443B (en) 1986-08-13
SE8007945L (en) 1981-05-27
ATA572880A (en) 1985-11-15
AU6422080A (en) 1981-06-04
BR8007606A (en) 1981-06-02

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Legal Events

Date Code Title Description
MM4A Patent lapsed