GB2026908B - Method of making sterring racks - Google Patents
Method of making sterring racksInfo
- Publication number
- GB2026908B GB2026908B GB7925894A GB7925894A GB2026908B GB 2026908 B GB2026908 B GB 2026908B GB 7925894 A GB7925894 A GB 7925894A GB 7925894 A GB7925894 A GB 7925894A GB 2026908 B GB2026908 B GB 2026908B
- Authority
- GB
- United Kingdom
- Prior art keywords
- finished
- tooth
- shape
- rack
- racks
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
- B62D3/126—Steering gears mechanical of rack-and-pinion type characterised by the rack
-
- 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
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
- B21K1/767—Toothed racks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/26—Racks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Forging (AREA)
Abstract
A method of making racks for rack and pinion steering gears for ground vehicles in which a rack blank is first shaped by machining, forging or other means having teeth which have a form corresponding approximately to the form desired in the finished rack the form of each tooth in the blank corresponds to the finished shape but is generally of greater radius; the total height of the tooth being greater than that of the finished shape and the volume of each tooth is substantially the same as the finished tooth. The teeth are then converted to the finished form by cold forming or coining in a die having a shape which is the exact counterpart of the finished shape.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPD529678 | 1978-07-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2026908A GB2026908A (en) | 1980-02-13 |
GB2026908B true GB2026908B (en) | 1982-11-10 |
Family
ID=3767646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7925894A Expired GB2026908B (en) | 1978-07-31 | 1979-07-25 | Method of making sterring racks |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5548540A (en) |
BR (1) | BR7904948A (en) |
DE (1) | DE2930917A1 (en) |
ES (1) | ES483771A1 (en) |
FR (1) | FR2432348A1 (en) |
GB (1) | GB2026908B (en) |
ZA (1) | ZA793873B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3039010C2 (en) * | 1979-10-27 | 1985-07-11 | Jidosha Kiki Co., Ltd., Tokio/Tokyo | Method for producing a rack with a Y-cross section |
DE3202254C2 (en) * | 1982-01-25 | 1986-02-20 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Method and device for producing a toothed rack |
JPS58221768A (en) * | 1982-06-15 | 1983-12-23 | Nissan Motor Co Ltd | Manufacture of rack for variable gear ratio rack and pinion steering |
JPS597455A (en) * | 1982-07-07 | 1984-01-14 | Nissan Motor Co Ltd | Manufacture of rack of variable gear ratio steering device |
GB2124935B (en) * | 1982-07-21 | 1985-08-14 | Cam Gears Ltd | A piston and cylinder assembly a power assisted steering gear which includes such an assembly and a method of forming a piston for such an assembly |
JPS5938736U (en) * | 1982-09-07 | 1984-03-12 | 株式会社クボタ | Stem culm locking conveyor claw |
GB2132513B (en) * | 1982-12-31 | 1985-12-11 | Cam Gears Ltd | A method of forming a rack member |
EP1132277B1 (en) | 2000-03-09 | 2009-07-29 | NSK Ltd., | Method for manufacturing a hollow rack shaft |
WO2002076653A1 (en) * | 2001-03-22 | 2002-10-03 | Bishop Innovation Limited | Method and apparatus for manufacture of a forged rack |
AU2002238299C1 (en) * | 2001-03-22 | 2005-05-12 | Bishop Steering Technology Pty Ltd | Method and apparatus for manufacture of a forged rack |
US7225541B2 (en) * | 2003-10-07 | 2007-06-05 | Chiaki Kubota | Method for producing hollow rack bar |
KR101393262B1 (en) * | 2010-02-22 | 2014-05-09 | 주식회사 만도 | Variable Gear Ratio Type Rack Bar and Steering Apparatus for Vehicle having The Same |
CN109719471A (en) * | 2018-12-28 | 2019-05-07 | 太仓久信精密模具股份有限公司 | A kind of cold-extrusion shaping method of rack gear |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB595242A (en) * | 1942-09-04 | 1947-12-01 | Jack & Heintz Inc | Method of making ring gears |
GB595654A (en) * | 1944-07-05 | 1947-12-11 | Landis & Gyr Sa | An improved method of and apparatus for the manufacture of the actuating pinions of the tens transfer mechanism of counting apparatus |
FR1464560A (en) * | 1963-10-14 | 1967-01-06 | Caltexa Trust Reg | Motor vehicle door locks and devices for their manufacture |
FR2340153A1 (en) * | 1976-02-05 | 1977-09-02 | Perrier Jean | Flat steel parts made by cold forging - using annealed blanks and tools providing close dimensional tolerances |
DE2811616C2 (en) * | 1978-03-17 | 1985-06-05 | Arthur Ernest Mosman New South Wales Bishop | Rack broaching machine |
-
1979
- 1979-07-25 GB GB7925894A patent/GB2026908B/en not_active Expired
- 1979-07-27 ZA ZA00793873A patent/ZA793873B/en unknown
- 1979-07-30 FR FR7919569A patent/FR2432348A1/en active Granted
- 1979-07-30 DE DE19792930917 patent/DE2930917A1/en active Granted
- 1979-07-30 JP JP9716079A patent/JPS5548540A/en active Granted
- 1979-07-31 BR BR7904948A patent/BR7904948A/en not_active IP Right Cessation
- 1979-07-31 ES ES483771A patent/ES483771A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2432348A1 (en) | 1980-02-29 |
DE2930917C2 (en) | 1991-03-21 |
JPS5626528B2 (en) | 1981-06-19 |
GB2026908A (en) | 1980-02-13 |
BR7904948A (en) | 1980-04-29 |
ES483771A1 (en) | 1980-05-16 |
ZA793873B (en) | 1980-07-30 |
JPS5548540A (en) | 1980-04-07 |
DE2930917A1 (en) | 1980-02-14 |
FR2432348B1 (en) | 1984-06-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940725 |