GB1308413A - Vibration-resistant thread-forming screw - Google Patents

Vibration-resistant thread-forming screw

Info

Publication number
GB1308413A
GB1308413A GB3112771A GB3112771A GB1308413A GB 1308413 A GB1308413 A GB 1308413A GB 3112771 A GB3112771 A GB 3112771A GB 3112771 A GB3112771 A GB 3112771A GB 1308413 A GB1308413 A GB 1308413A
Authority
GB
United Kingdom
Prior art keywords
thread
shank
vibration
forming screw
lobes
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
GB3112771A
Inventor
L Simons
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.)
NL Industries Inc
Original Assignee
NL Industries Inc
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 NL Industries Inc filed Critical NL Industries Inc
Publication of GB1308413A publication Critical patent/GB1308413A/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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/30—Locking exclusively by special shape of the screw-thread
    • 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
    • F16B25/0021—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 metal, e.g. sheet-metal or aluminium
    • 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
    • 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
    • F16B25/0078—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw with a shaft of non-circular cross-section or other special geometric features of the shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Transmission Devices (AREA)
  • Connection Of Plates (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1308413 Self-tapping screws N L INDUSTRIES Inc 2 July 1971 [14 July 1970] 31127/71 Heading B3N A vibration-resistant, thread-forming screw 10 comprising a shank 14 having a thread 16 and a plurality of lobes 18 distributed circumferentially about said shank and being on a spiral therealong in an angular direction opposite from said thread, said shank having in a plane normal to its axis an inner solid core 20 of circular configuration and said lobes being integral therewith and being uniformly distributed circumferentially, each lobe having in the direction 22 in which the shank is turned when forming a thread, an elongate leading leg 24 which progresses gradually away from the axis and a relatively short trailing leg 26.
GB3112771A 1970-07-14 1971-07-02 Vibration-resistant thread-forming screw Expired GB1308413A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5471670A 1970-07-14 1970-07-14

Publications (1)

Publication Number Publication Date
GB1308413A true GB1308413A (en) 1973-02-21

Family

ID=21993034

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3112771A Expired GB1308413A (en) 1970-07-14 1971-07-02 Vibration-resistant thread-forming screw

Country Status (10)

Country Link
JP (1) JPS4832537B2 (en)
BE (1) BE769999A (en)
CA (1) CA948903A (en)
CH (1) CH534821A (en)
DE (1) DE2135210C3 (en)
FR (1) FR2101694A5 (en)
GB (1) GB1308413A (en)
NL (1) NL7109704A (en)
SE (1) SE375138B (en)
ZA (1) ZA714589B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109026954A (en) * 2018-08-28 2018-12-18 上海纳特汽车标准件有限公司 A kind of screw that installation effectiveness can be improved

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703433A1 (en) * 1977-01-28 1978-12-07 Schumacher Wilhelm Kg THREAD FORMING SCREW AND METHOD OF MANUFACTURING THE SAME AND ROLLING JAW FOR PERFORMING THE METHOD
DE3046692C2 (en) * 1980-12-11 1986-01-23 Kamax-Werke Rudolf Kellermann Gmbh & Co Kg, 3360 Osterode Thread rolling screw
JP6173498B2 (en) * 2016-01-25 2017-08-02 有限会社藤▲崎▼鋲螺 Non-circular screw

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2352982A (en) * 1942-06-25 1944-07-04 American Screw Co Screw for plastics
AT210236B (en) * 1958-07-29 1960-07-25 Strojirny A Slevarny Bohumira Taps
DE1400838A1 (en) * 1961-04-03 1968-11-14 Jllinois Tool Works Inc Fastener
US3226743A (en) * 1961-12-19 1966-01-04 British Tap & Die Company Fluteless taps
US3385340A (en) * 1966-04-22 1968-05-28 Lock Thread Corp Lock fastener
JPS4816048U (en) * 1971-06-07 1973-02-23

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109026954A (en) * 2018-08-28 2018-12-18 上海纳特汽车标准件有限公司 A kind of screw that installation effectiveness can be improved

Also Published As

Publication number Publication date
CH534821A (en) 1973-03-15
FR2101694A5 (en) 1972-03-31
NL7109704A (en) 1972-01-18
BE769999A (en) 1972-01-14
DE2135210B2 (en) 1980-12-11
JPS477960A (en) 1972-04-27
DE2135210C3 (en) 1985-04-25
DE2135210A1 (en) 1972-01-27
ZA714589B (en) 1972-04-26
SE375138B (en) 1975-04-07
CA948903A (en) 1974-06-11
JPS4832537B2 (en) 1973-10-06

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years