JPS5551665A - Rack-pinion type variable gear-ratio system steering apparatus - Google Patents
Rack-pinion type variable gear-ratio system steering apparatusInfo
- Publication number
- JPS5551665A JPS5551665A JP12251878A JP12251878A JPS5551665A JP S5551665 A JPS5551665 A JP S5551665A JP 12251878 A JP12251878 A JP 12251878A JP 12251878 A JP12251878 A JP 12251878A JP S5551665 A JPS5551665 A JP S5551665A
- Authority
- JP
- Japan
- Prior art keywords
- rack
- standard pitch
- pieces
- teeth
- tooth
- 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.)
- Pending
Links
Landscapes
- Transmission Devices (AREA)
Abstract
PURPOSE: To dissolve the hanging of steering sense at the gear-ratio minimum position and enable smooth steering by forming the gear form of a helical pinion so that the radius ρ, of standard pitch circle a varies according to the angle θ of revolution.
CONSTITUTION: A helical pinion 1 which engages with the rack of the rack shaft in the steering apparatus of a car has five pieces of teeth 15W19. As for these five pieces of teeth, the length of tooth deddendum is equal but the length of tooth addendum different, and the length of the tooth deddendum of the upper side tooth 15 is shortest, and two pieces of lower side teeth 18 and 19 are longest, and other two pieces of teeth are intermedium. When a standard pitch circule is designated 14, and the angle formed by an arbitrary point 14A on the standard pitch circle and the line YWY' is designated θ, then the radius of the standard pitch circle decreases as the agnle θ of revolution reduces, and when the angle θ of revolution is 180 degrees, the redius ρn of the minimum standard pitch cicrcle is formed. Thus, the pressure angle of the rack can be reduced, and steering sense can be improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12251878A JPS5551665A (en) | 1978-10-06 | 1978-10-06 | Rack-pinion type variable gear-ratio system steering apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12251878A JPS5551665A (en) | 1978-10-06 | 1978-10-06 | Rack-pinion type variable gear-ratio system steering apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5551665A true JPS5551665A (en) | 1980-04-15 |
Family
ID=14837829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12251878A Pending JPS5551665A (en) | 1978-10-06 | 1978-10-06 | Rack-pinion type variable gear-ratio system steering apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5551665A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0047017A2 (en) * | 1980-09-01 | 1982-03-10 | Nissan Motor Co., Ltd. | Variable ratio rack and pinion steering gear for vehicles |
JPS5769155A (en) * | 1980-10-16 | 1982-04-27 | Nissan Motor Co Ltd | Rack and pinion type variable gear ratio steering gear apparatus |
JPS57116573U (en) * | 1981-01-12 | 1982-07-19 | ||
JPS57116574U (en) * | 1981-01-12 | 1982-07-19 | ||
US4444070A (en) * | 1980-09-01 | 1984-04-24 | Nissan Motor Co., Ltd. | Variable ratio rack and pinion steering gear |
JPS6434552A (en) * | 1987-07-31 | 1989-02-06 | Kawasaki Steel Co | Apparatus for controlling pouring of molten metal |
JPH01106776A (en) * | 1987-10-20 | 1989-04-24 | Koyo Seiko Co Ltd | Power steering device |
JP2005271605A (en) * | 2004-03-22 | 2005-10-06 | Sumitomo Rubber Ind Ltd | Power steering device |
US20120080861A1 (en) * | 2010-09-30 | 2012-04-05 | Kia Motors Corporation | Steering apparatus for vehicle |
JP2013184597A (en) * | 2012-03-08 | 2013-09-19 | Jtekt Corp | Steering device |
-
1978
- 1978-10-06 JP JP12251878A patent/JPS5551665A/en active Pending
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4444070A (en) * | 1980-09-01 | 1984-04-24 | Nissan Motor Co., Ltd. | Variable ratio rack and pinion steering gear |
EP0047017A2 (en) * | 1980-09-01 | 1982-03-10 | Nissan Motor Co., Ltd. | Variable ratio rack and pinion steering gear for vehicles |
JPS5769155A (en) * | 1980-10-16 | 1982-04-27 | Nissan Motor Co Ltd | Rack and pinion type variable gear ratio steering gear apparatus |
US4475413A (en) * | 1980-10-16 | 1984-10-09 | Nissan Motor Company, Limited | Variable ratio rack and pinion steering gear |
JPS626925Y2 (en) * | 1981-01-12 | 1987-02-18 | ||
JPS57116574U (en) * | 1981-01-12 | 1982-07-19 | ||
JPS57116573U (en) * | 1981-01-12 | 1982-07-19 | ||
JPS6434552A (en) * | 1987-07-31 | 1989-02-06 | Kawasaki Steel Co | Apparatus for controlling pouring of molten metal |
JPH01106776A (en) * | 1987-10-20 | 1989-04-24 | Koyo Seiko Co Ltd | Power steering device |
JP2005271605A (en) * | 2004-03-22 | 2005-10-06 | Sumitomo Rubber Ind Ltd | Power steering device |
US20120080861A1 (en) * | 2010-09-30 | 2012-04-05 | Kia Motors Corporation | Steering apparatus for vehicle |
US8376379B2 (en) * | 2010-09-30 | 2013-02-19 | Hyundai Motor Company | Steering apparatus for vehicle |
JP2013184597A (en) * | 2012-03-08 | 2013-09-19 | Jtekt Corp | Steering device |
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