IL30632A - Process for forming a self-locking nut - Google Patents
Process for forming a self-locking nutInfo
- Publication number
- IL30632A IL30632A IL6830632A IL3063268A IL30632A IL 30632 A IL30632 A IL 30632A IL 6830632 A IL6830632 A IL 6830632A IL 3063268 A IL3063268 A IL 3063268A IL 30632 A IL30632 A IL 30632A
- Authority
- IL
- Israel
- Prior art keywords
- nut
- body portion
- frustrum
- self
- cone
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/64—Making machine elements nuts
- B21K1/70—Making machine elements nuts of special shape, e.g. self-locking nuts, wing nuts
- B21K1/707—Self-locking nuts
-
- 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
- F16B39/284—Locking by means of elastic deformation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
- Dowels (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Clamps And Clips (AREA)
Description
Process for forming a self looking nut RENE BEAUPERE C:-28850 ,.
According to this invention there is provided a process for forming a self-locking nut comprising the steps of tapering the upper half of the body portion of a right cylindrical nut to form a frustrum of a cone whose axis coincides with the axis of the threaded bore passing through the nut, and swaging the upper half of the body portion with a punch having an inserted V-shaped opening defined by two planes that intersect at an angle slightly bigger than the angle of the frustrum of the cone on the upper half of the body portion such that the cross-section of the bore is made increasingly oval in a direction forward the smaller end of the frustrum of the cone on the upper face of the nut, the major axis of the oval being slightly greater than, and vthe minor axis of the oval being slightly less than, the diameter of* the circular cross-section of the threaded bore in the lower half of the body portion of the nut, / Embodiments of the invention will now be described by waypf example and with reference to the accompanying drawings, in whicht- Fig. 1 is a side elevation, partly in section, of a nut during manufacture; Pig. 2 is an elevation, partly in section, of the tool intended to form the locking feature of the nut; Pig. 3 is a cross-sectional view of a finished nut; Fig. 4 is a top plan view corresponding to Fig. 3i Fig. 5 is a cross-section of a second embodiment of nut; and Pig. 6 is a top plan view corresponding to Fig. 5· Referring to Pig. 1, there is shown a roughly finished nut with a single self-locking action, which nut has a bore 1, having an axis.2, the bore being fully-threaded throughout to the desired pitch and profile. The nut has a lower hexagonally-walled part 5· 30632/3 part 4 of the nut is frusto-conical, as shown, centred on the axis 2, Two diametrically-opposite generatrices of the cone extend to form an acute angle 5 (of 65° for example). The top surface 6 of the nut has a diameter equal to or slightly greater than the diameter of the threaded bore 1, as shown. This roughly finished nut may be produced by any of the following methods of manufacture :- - by cutting from drawn bar stock; • by hot or cold stamping; - by extrusion; - by compression or by sintering from metal powder.
These methods of manufacture can be used only for metal nuts which are, by themselves, capable of withstanding the finishing operation or operations to be v. escribed below. If not, the finished nut is produced either by compression or by sintering from metal powders, or by moulding from a plastics material (a pol amide or a superpolyamide rosin, for example).
The final operation in the manufacture of the nut is carried out by deforming the frusto-conical upper part 4, using a punch 10 (Figure 2 ) i The punch has an inverted V-shape 14 or an inverted cone 15 with two clearances 16 and 17 connected thereto by tangent planes 18, 19, 20 to avoid hollow punching which promote - cracking. The y-shaped opening is defined by two planes that intersect at an angle 11 slightly greater. than the angle
Claims (3)
1. A process for forming a self-locking nut comprising the steps of tapering the upper half of the body portion of a right cylindrical nut to form a frustrum of a cone whose axis coin- ■■ cides with the axis of the threaded bore passing through the nut, and swaging the upper half of the body portion with a punch having an inverted V-shaped opening defined by two planes that intersect at an angle slightly bigger than the angle of the frustrum of the cone on the upper half of the body portion such that the cross-section of the bore is made. increasingly oval in a direction forward the smaller end of the frustrum of the cone on the upper face of the nut, the major axis of the oval being, slightly greater than, and the minor axis of the oval being slightly less than, the diameter of the circular cross-section of the threaded bore iri the lower half of the body portion of the nut.
2. A process according to Claim 1 including the ste of providing a clearance space on the lower half of the body portion around the periphery of the threaded bore adjacent the lower face of the nut.
3. A process for forming a self-locking nut substantially as described above by way of example and with reference to the accompanying drawings. For the Applicants DRl RROTMKHHOOLLDD CCOOHHNW AANNDD PPAARRTTNHEERS By: IS:CB
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR121909A FR1544751A (en) | 1967-09-22 | 1967-09-22 | safety nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL30632A0 IL30632A0 (en) | 1968-10-24 |
| IL30632A true IL30632A (en) | 1972-06-28 |
Family
ID=8638797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL6830632A IL30632A (en) | 1967-09-22 | 1968-08-26 | Process for forming a self-locking nut |
Country Status (9)
| Country | Link |
|---|---|
| BE (1) | BE719529A (en) |
| CH (1) | CH483572A (en) |
| DE (1) | DE6609822U (en) |
| ES (1) | ES155348Y (en) |
| FR (1) | FR1544751A (en) |
| GB (1) | GB1244874A (en) |
| IL (1) | IL30632A (en) |
| LU (1) | LU56698A1 (en) |
| NL (1) | NL6811888A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4291737A (en) * | 1979-03-05 | 1981-09-29 | Russell, Burdsall And Ward Corporation | Prevailing torque lock nut and method of forming same |
| GB2131115B (en) * | 1982-11-26 | 1986-06-04 | Eastern Co | Reinforcing rock structure and nut elements therefor |
| FR2545555B1 (en) * | 1983-05-04 | 1989-06-02 | Eastern Co | NUT ELEMENT, MANUFACTURING METHOD THEREOF, AND METHOD FOR REINFORCING A ROCK STRUCTURE USING SUCH AN ELEMENT |
| DE4105541A1 (en) * | 1991-02-22 | 1992-07-02 | Daimler Benz Ag | METAL SCREW NUT |
| JP3075331B2 (en) * | 1993-12-28 | 2000-08-14 | ボルボ コンストラクション イクイップメントコリア カンパニー リミテッド | Wear-resistant, corrosion-resistant, heat-resistant mechanical seal |
| US5713686A (en) * | 1995-09-25 | 1998-02-03 | Dana Corporation | Prevailing-torque adjusting sleeve |
| CN108775325A (en) * | 2018-08-03 | 2018-11-09 | 王平安 | Deformation type combines stop nut |
| CN108757700A (en) * | 2018-08-03 | 2018-11-06 | 王平安 | Deformation type anti-loosen screw nut component |
-
1967
- 1967-09-22 FR FR121909A patent/FR1544751A/en not_active Expired
-
1968
- 1968-08-12 LU LU56698D patent/LU56698A1/xx unknown
- 1968-08-16 CH CH1236368A patent/CH483572A/en not_active IP Right Cessation
- 1968-08-16 BE BE719529D patent/BE719529A/xx unknown
- 1968-08-21 NL NL6811888A patent/NL6811888A/xx unknown
- 1968-08-26 IL IL6830632A patent/IL30632A/en unknown
- 1968-08-29 GB GB41308/68A patent/GB1244874A/en not_active Expired
- 1968-09-18 ES ES1968155348U patent/ES155348Y/en not_active Expired
- 1968-09-19 DE DE6609822U patent/DE6609822U/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES155348U (en) | 1970-09-16 |
| ES155348Y (en) | 1971-05-16 |
| LU56698A1 (en) | 1968-11-21 |
| IL30632A0 (en) | 1968-10-24 |
| NL6811888A (en) | 1969-03-25 |
| BE719529A (en) | 1969-02-03 |
| GB1244874A (en) | 1971-09-02 |
| FR1544751A (en) | 1968-11-08 |
| DE6609822U (en) | 1972-10-05 |
| CH483572A (en) | 1969-12-31 |
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