FR2301723A1 - Torque indicative nuts or bolts - have ribs projecting radially from apices yielding at limit torque to cause spanner slip - Google Patents
Torque indicative nuts or bolts - have ribs projecting radially from apices yielding at limit torque to cause spanner slipInfo
- Publication number
- FR2301723A1 FR2301723A1 FR7505402A FR7505402A FR2301723A1 FR 2301723 A1 FR2301723 A1 FR 2301723A1 FR 7505402 A FR7505402 A FR 7505402A FR 7505402 A FR7505402 A FR 7505402A FR 2301723 A1 FR2301723 A1 FR 2301723A1
- Authority
- FR
- France
- Prior art keywords
- torque
- nuts
- apices
- bolts
- yielding
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
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
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The torque indicative nuts or bolts, are for precision tightening with lower strength materials, and are accessible for re-tightening or unfastening. Ribs (4) project radially from each of the apices of conventioanl hexagonal nuts (3) to induce slipping of the spanner at specific torque by yeilding elastically. The nut is flanged (2) and has two sections, one flanged and one (1) of solid conventional hexagonal from, for retightening or unfastening. The ribs (4) are cold metal formed or plastic injection moulded.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7505402A FR2301723A1 (en) | 1975-02-21 | 1975-02-21 | Torque indicative nuts or bolts - have ribs projecting radially from apices yielding at limit torque to cause spanner slip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7505402A FR2301723A1 (en) | 1975-02-21 | 1975-02-21 | Torque indicative nuts or bolts - have ribs projecting radially from apices yielding at limit torque to cause spanner slip |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2301723A1 true FR2301723A1 (en) | 1976-09-17 |
FR2301723B1 FR2301723B1 (en) | 1978-02-03 |
Family
ID=9151526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7505402A Granted FR2301723A1 (en) | 1975-02-21 | 1975-02-21 | Torque indicative nuts or bolts - have ribs projecting radially from apices yielding at limit torque to cause spanner slip |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2301723A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0001935A1 (en) * | 1977-11-09 | 1979-05-16 | V.S.I. Corporation | Threaded fasteners, threaded fastener elements and fastening processes using same |
US4189976A (en) * | 1978-06-29 | 1980-02-26 | Fargo Manufacturing Company, Inc. | Dual head fastener |
FR2515301A1 (en) * | 1981-09-14 | 1983-04-29 | Utilisation Ration Gaz | IMPROVEMENT IN FLOW LIMITERS FOR GAS BOTTLES |
EP0217746A1 (en) * | 1985-09-18 | 1987-04-08 | HILTI Aktiengesellschaft | Wall tie |
EP0219456A1 (en) * | 1985-09-18 | 1987-04-22 | HILTI Aktiengesellschaft | Wall tie |
FR2658109A1 (en) * | 1990-02-13 | 1991-08-16 | Rasmussen Gmbh | DEVICE FOR ENSURING THE APPLICATION OF A PREDETERMINED ROTATION TORQUE WHEN TIGHTENING A SCREW OR THE LIKE. |
US5452974A (en) * | 1993-03-04 | 1995-09-26 | Air Industries Corporation | Deformable locking fastener system and method of use |
US5692419A (en) * | 1993-03-04 | 1997-12-02 | Air Industries Corporation | Deformable locking fastener system and method of use |
FR2839640A1 (en) * | 2002-05-14 | 2003-11-21 | Xavier Renard | Bone screw for use in orthopaedic surgery, e.g. to join to bones together or a ligament or plate with a bone has cylindrical part of tip that separates from hole in threaded shaft when set torsional force is exceeded |
DE102021209796A1 (en) | 2021-09-06 | 2023-03-09 | Zf Friedrichshafen Ag | Screw plug, in particular screw plug of an outlet opening of a housing |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2204243A5 (en) * | 1972-10-20 | 1974-05-17 | Elco Industries Inc |
-
1975
- 1975-02-21 FR FR7505402A patent/FR2301723A1/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2204243A5 (en) * | 1972-10-20 | 1974-05-17 | Elco Industries Inc |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0001935A1 (en) * | 1977-11-09 | 1979-05-16 | V.S.I. Corporation | Threaded fasteners, threaded fastener elements and fastening processes using same |
US4189976A (en) * | 1978-06-29 | 1980-02-26 | Fargo Manufacturing Company, Inc. | Dual head fastener |
FR2515301A1 (en) * | 1981-09-14 | 1983-04-29 | Utilisation Ration Gaz | IMPROVEMENT IN FLOW LIMITERS FOR GAS BOTTLES |
EP0217746A1 (en) * | 1985-09-18 | 1987-04-08 | HILTI Aktiengesellschaft | Wall tie |
EP0219456A1 (en) * | 1985-09-18 | 1987-04-22 | HILTI Aktiengesellschaft | Wall tie |
FR2658109A1 (en) * | 1990-02-13 | 1991-08-16 | Rasmussen Gmbh | DEVICE FOR ENSURING THE APPLICATION OF A PREDETERMINED ROTATION TORQUE WHEN TIGHTENING A SCREW OR THE LIKE. |
US5452974A (en) * | 1993-03-04 | 1995-09-26 | Air Industries Corporation | Deformable locking fastener system and method of use |
US5692419A (en) * | 1993-03-04 | 1997-12-02 | Air Industries Corporation | Deformable locking fastener system and method of use |
FR2839640A1 (en) * | 2002-05-14 | 2003-11-21 | Xavier Renard | Bone screw for use in orthopaedic surgery, e.g. to join to bones together or a ligament or plate with a bone has cylindrical part of tip that separates from hole in threaded shaft when set torsional force is exceeded |
DE102021209796A1 (en) | 2021-09-06 | 2023-03-09 | Zf Friedrichshafen Ag | Screw plug, in particular screw plug of an outlet opening of a housing |
Also Published As
Publication number | Publication date |
---|---|
FR2301723B1 (en) | 1978-02-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2301723A1 (en) | Torque indicative nuts or bolts - have ribs projecting radially from apices yielding at limit torque to cause spanner slip | |
GB1155799A (en) | Locking and Sealing Threaded Fasteners | |
GB1058870A (en) | A method of and apparatus for use in tightening a nut and bolt assembly | |
GB1305418A (en) | ||
GB866556A (en) | Improvements relating to screw-threaded fastening devices | |
GB1278351A (en) | Plastic headed fastener | |
ES432016A1 (en) | Torque-transmitting arrangement for fasteners and the like | |
GB1257255A (en) | ||
ATE41207T1 (en) | MOLDED LOCKING DEVICE. | |
GB1109956A (en) | Self-locking screw-threaded fastener device | |
GB1423202A (en) | Blanks for nuts and the like | |
GB1391488A (en) | Screw-threaded fasteners | |
GB1192148A (en) | The Attachment of Vehicle Wheels | |
ES285719U (en) | Method of manufacturing a double-nut running on a threaded spindle. | |
JPS54108155A (en) | Rope wheel for elevator | |
GB1392513A (en) | Method for producing fasteners such as screws pins bolts or the like comprising elongatable shanks and elongatable shank fastener produced according to the aforesaid method | |
GB913407A (en) | Improvements in or relating to nuts and bolts and locking means therefore | |
GB1537083A (en) | Fastening | |
GB874643A (en) | Improvements in or relating to fasteners for conveyor belts and the like | |
GB1248969A (en) | A fastener assembly | |
GB863536A (en) | Process for the production of gas-tight pipe connections | |
GB664218A (en) | Improvements in and relating to screw fasteners | |
GB1347817A (en) | Screw or nut locking element | |
GB908360A (en) | Improvements relating to nuts and bolts or screws | |
JPS5747233A (en) | Metal fitting |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |