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FI780224A - GAENGFORMANDE SKRUV SAMT FOERFARANDE FOER FRAMSTAELLNING AV DENNA OCH VALSBACK FOER GENOMFOERANDE AV FOERFARANDET - Google Patents

GAENGFORMANDE SKRUV SAMT FOERFARANDE FOER FRAMSTAELLNING AV DENNA OCH VALSBACK FOER GENOMFOERANDE AV FOERFARANDET

Info

Publication number
FI780224A
FI780224A FI780224A FI780224A FI780224A FI 780224 A FI780224 A FI 780224A FI 780224 A FI780224 A FI 780224A FI 780224 A FI780224 A FI 780224A FI 780224 A FI780224 A FI 780224A
Authority
FI
Finland
Prior art keywords
foer
valsback
skruv
gaengformande
foerfarandet
Prior art date
Application number
FI780224A
Other languages
Finnish (fi)
Other versions
FI68539C (en
FI68539B (en
Inventor
Ulrich Schumacher
Wolfgang Wittmann
Original Assignee
Schumacher Wilhelm 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 Schumacher Wilhelm Kg filed Critical Schumacher Wilhelm Kg
Publication of FI780224A publication Critical patent/FI780224A/en
Application granted granted Critical
Publication of FI68539B publication Critical patent/FI68539B/en
Publication of FI68539C publication Critical patent/FI68539C/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
    • F16B25/0036—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
    • F16B25/0047—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 ridge being characterised by its cross-section in the plane of the shaft axis
    • 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
    • F16B25/0036—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
    • F16B25/0052—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 ridge having indentations, notches or the like in order to improve the cutting behaviour

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Forging (AREA)
  • Pinball Game Machines (AREA)
  • Refuse Collection And Transfer (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
FI780224A 1977-01-28 1978-01-24 REPAIR SCREW SAMT FOERFARANDE FOER FRAMSTAELLNING AV DENA FI68539C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2703433 1977-01-28
DE19772703433 DE2703433A1 (en) 1977-01-28 1977-01-28 THREAD FORMING SCREW AND METHOD OF MANUFACTURING THE SAME AND ROLLING JAW FOR PERFORMING THE METHOD

Publications (3)

Publication Number Publication Date
FI780224A true FI780224A (en) 1978-07-29
FI68539B FI68539B (en) 1985-06-28
FI68539C FI68539C (en) 1985-10-10

Family

ID=5999735

Family Applications (1)

Application Number Title Priority Date Filing Date
FI780224A FI68539C (en) 1977-01-28 1978-01-24 REPAIR SCREW SAMT FOERFARANDE FOER FRAMSTAELLNING AV DENA

Country Status (14)

Country Link
AT (1) AT362626B (en)
BE (1) BE863419A (en)
CH (1) CH632321A5 (en)
DE (1) DE2703433A1 (en)
DK (1) DK148545C (en)
ES (1) ES238409Y (en)
FI (1) FI68539C (en)
FR (1) FR2378973A1 (en)
GB (1) GB1568801A (en)
IT (1) IT1092132B (en)
NL (1) NL184127C (en)
NO (1) NO146507C (en)
PT (1) PT67580B (en)
SE (1) SE434295B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811585A (en) * 1986-04-02 1989-03-14 Nissan Motor Co., Ltd. Device for forming asymmetrical articles by rolling
GB8819820D0 (en) * 1988-08-20 1988-09-21 Tucker Fasteners Ltd Anchors for fixing to dense concrete masonry &c
DE4131165A1 (en) * 1991-09-19 1993-03-25 Schumacher Wilhelm Kg THREAD-FORMING SCREW AND METHOD FOR PRODUCING THE SAME AND ROLLING JAWS FOR CARRYING OUT THE METHOD
DE102005041586A1 (en) 2005-09-01 2007-03-08 Ejot Gmbh & Co. Kg Thread-forming screw
DE202010015839U1 (en) * 2010-11-26 2011-02-24 Acument Gmbh & Co. Ohg Self-locking thread
DE102020130085B3 (en) 2020-11-13 2022-04-28 Essence Method Refine Co., Ltd. METHOD OF MAKING A MULTIFUNCTIONAL FASTENING ELEMENT

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1400838A1 (en) * 1961-04-03 1968-11-14 Jllinois Tool Works Inc Fastener
US3426642A (en) * 1962-02-05 1969-02-11 Res Eng & Mfg Self-tapping screws with threadforming projections
GB1219237A (en) * 1969-04-08 1971-01-13 Leon Simons Vibration-resistant screw
ZA71559B (en) * 1970-01-30 1972-03-29 Nat Lead Co Thread-rolling method,thread-rolling dies,and method of manufacturing the dies
GB1308413A (en) * 1970-07-14 1973-02-21 Nl Industries Inc Vibration-resistant thread-forming screw
CA977192A (en) * 1972-05-24 1975-11-04 Usm Corporation Self tapping fastener and method and dies for making same
US3866509A (en) * 1973-08-22 1975-02-18 Mite Corp Self-tapping and self-retaining, screw thread insert
US3935785A (en) * 1974-01-03 1976-02-03 Rockford Headed Products, Inc. Thread swaging screw
US4046051A (en) * 1974-11-14 1977-09-06 Industrial Fasteners Corporation Thread forming screw

Also Published As

Publication number Publication date
GB1568801A (en) 1980-06-04
SE434295B (en) 1984-07-16
NO146507B (en) 1982-07-05
NO146507C (en) 1982-10-13
NO774469L (en) 1978-07-31
ATA59978A (en) 1980-10-15
NL184127C (en) 1989-04-17
ES238409Y (en) 1979-04-01
FI68539C (en) 1985-10-10
FI68539B (en) 1985-06-28
DK148545B (en) 1985-07-29
PT67580A (en) 1978-02-01
BE863419A (en) 1978-05-16
DE2703433A1 (en) 1978-12-07
ES238409U (en) 1978-11-16
DE2703433C2 (en) 1988-11-03
SE7800519L (en) 1978-07-29
FR2378973A1 (en) 1978-08-25
DK148545C (en) 1986-04-07
NL184127B (en) 1988-11-16
CH632321A5 (en) 1982-09-30
IT1092132B (en) 1985-07-06
PT67580B (en) 1979-06-20
AT362626B (en) 1981-06-10
DK24678A (en) 1978-07-29
IT7819638A0 (en) 1978-01-26
FR2378973B1 (en) 1985-01-04
NL7800519A (en) 1978-08-01

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Legal Events

Date Code Title Description
MA Patent expired

Owner name: WILHELM SCHUMACHER K.G.