IT1145155B - NON-RELEASABLE SCREW AND PROCEDURE FOR ITS MANUFACTURE - Google Patents

NON-RELEASABLE SCREW AND PROCEDURE FOR ITS MANUFACTURE

Info

Publication number
IT1145155B
IT1145155B IT67855/81A IT6785581A IT1145155B IT 1145155 B IT1145155 B IT 1145155B IT 67855/81 A IT67855/81 A IT 67855/81A IT 6785581 A IT6785581 A IT 6785581A IT 1145155 B IT1145155 B IT 1145155B
Authority
IT
Italy
Prior art keywords
procedure
manufacture
releasable screw
releasable
screw
Prior art date
Application number
IT67855/81A
Other languages
Italian (it)
Other versions
IT8167855A0 (en
Inventor
Henri Rodet
Original Assignee
Sofrariv Frappe Rivets
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 Sofrariv Frappe Rivets filed Critical Sofrariv Frappe Rivets
Publication of IT8167855A0 publication Critical patent/IT8167855A0/en
Application granted granted Critical
Publication of IT1145155B publication Critical patent/IT1145155B/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
    • 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
    • B21H3/025—Rolling locking screws

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
IT67855/81A 1980-06-20 1981-06-19 NON-RELEASABLE SCREW AND PROCEDURE FOR ITS MANUFACTURE IT1145155B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8014157A FR2485121A1 (en) 1980-06-20 1980-06-20 ESSENTIAL SCREW AND MANUFACTURING METHOD THEREOF

Publications (2)

Publication Number Publication Date
IT8167855A0 IT8167855A0 (en) 1981-06-19
IT1145155B true IT1145155B (en) 1986-11-05

Family

ID=9243517

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67855/81A IT1145155B (en) 1980-06-20 1981-06-19 NON-RELEASABLE SCREW AND PROCEDURE FOR ITS MANUFACTURE

Country Status (3)

Country Link
DE (1) DE3123984A1 (en)
FR (1) FR2485121A1 (en)
IT (1) IT1145155B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4031602A1 (en) * 1990-10-05 1992-04-09 Hartmut Flaig HAMMER NUT
DE102010037757A1 (en) * 2010-09-24 2012-03-29 Pee-Wee Kaltwalz- Und Rohrbearbeitungsmaschinen Gmbh Screw thread for e.g. screw bolt and nut, has edges with protrusion on both sides of groove, where thread exhibits smaller thread depth in region of clamping portion if pitch is smaller or equivalent to preset value than outside of portion

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2352540A (en) * 1942-01-12 1944-06-27 Illinois Tool Works Self-locking screw
US2380944A (en) * 1944-05-16 1945-08-07 Cole Machinery Mfg Corp Cold rolled grip bolt
US3381733A (en) * 1966-07-01 1968-05-07 Glenn W. Stanwick Thread form
GB1317652A (en) * 1969-07-18 1973-05-23 Usm Corp Selflocking fasteners
US4175605A (en) * 1977-12-23 1979-11-27 Johnson Propeller Company Propeller nut

Also Published As

Publication number Publication date
FR2485121B1 (en) 1982-10-15
FR2485121A1 (en) 1981-12-24
DE3123984A1 (en) 1982-04-29
IT8167855A0 (en) 1981-06-19

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