JPS5455927A - Steering gear system with variable gear ratio and gear cutting method for the tapered sector gear - Google Patents
Steering gear system with variable gear ratio and gear cutting method for the tapered sector gearInfo
- Publication number
- JPS5455927A JPS5455927A JP12141577A JP12141577A JPS5455927A JP S5455927 A JPS5455927 A JP S5455927A JP 12141577 A JP12141577 A JP 12141577A JP 12141577 A JP12141577 A JP 12141577A JP S5455927 A JPS5455927 A JP S5455927A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- rack
- tooth
- sector
- variable
- 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
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
- B62D3/04—Steering gears mechanical of worm type
- B62D3/06—Steering gears mechanical of worm type with screw and nut
- B62D3/08—Steering gears mechanical of worm type with screw and nut using intermediate balls or the like
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Gears, Cams (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
PURPOSE: To provide a ball recirculated type steering gear system with variable gear ratio, in which tooth profile of tapered sector gear is shaped in the same form with that of the rack to be meshed, whereby breakage of tooth tip can be prevented and smooth mesh between the sector gear and rack can be attained.
CONSTITUTION: Ball nut 4 is threaded with ball screw 2 formed in steering shaft 1 by the intermediary of balls 3, and toothed rack 6 formed in the ball nut 4 and tapered sector gear 8 formed integrally with sector shaft 7 are held in mesh with each other and supported in gear box 5. In generating the gear 8 by means of a gear cutting tool in the same form as the rack 6, gear cutting is conducted with its generating angle being kept smaller than the maximum swing angle of the same, and the tooth surface 8b" at the tip of side teeth 8b located on opposite sides of center tooth 8a is shaped in the same form as that of the mating tooth of rack 6
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12141577A JPS5455927A (en) | 1977-10-12 | 1977-10-12 | Steering gear system with variable gear ratio and gear cutting method for the tapered sector gear |
GB7839899A GB2006385B (en) | 1977-10-12 | 1978-10-10 | Variable ratio steering gear and method of cutting sector gear incorporated in same |
FR7829037A FR2405853A1 (en) | 1977-10-12 | 1978-10-11 | STEERING BOX WITH VARIABLE RATIO AND PROCESS FOR SIZING A TOOTH SECTOR INCLUDED IN THIS BOX |
DE19782844359 DE2844359A1 (en) | 1977-10-12 | 1978-10-11 | STEERING GEAR WITH VARIABLE RATIO |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12141577A JPS5455927A (en) | 1977-10-12 | 1977-10-12 | Steering gear system with variable gear ratio and gear cutting method for the tapered sector gear |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5455927A true JPS5455927A (en) | 1979-05-04 |
JPS5753234B2 JPS5753234B2 (en) | 1982-11-11 |
Family
ID=14810590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12141577A Granted JPS5455927A (en) | 1977-10-12 | 1977-10-12 | Steering gear system with variable gear ratio and gear cutting method for the tapered sector gear |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5455927A (en) |
DE (1) | DE2844359A1 (en) |
FR (1) | FR2405853A1 (en) |
GB (1) | GB2006385B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104455312A (en) * | 2014-09-30 | 2015-03-25 | 武汉理工大学 | Method for designing gear sector tooth profile of recirculating ball variable-ratio steering-gear gear pair |
CN104265859B (en) * | 2014-09-30 | 2017-01-11 | 武汉理工大学 | Design method for rack tooth profile of gear pair of recirculating ball type variable-ratio steering gear |
US11390203B2 (en) * | 2019-05-27 | 2022-07-19 | Faurecia Sièges d'Automobile | Armrest assembly for vehicle seat |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5138971B1 (en) * | 1968-05-02 | 1976-10-25 | ||
DE2237421C2 (en) * | 1972-07-29 | 1982-11-25 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Variable ratio steering gears for automobiles |
JPS5235167B2 (en) * | 1972-10-18 | 1977-09-07 |
-
1977
- 1977-10-12 JP JP12141577A patent/JPS5455927A/en active Granted
-
1978
- 1978-10-10 GB GB7839899A patent/GB2006385B/en not_active Expired
- 1978-10-11 DE DE19782844359 patent/DE2844359A1/en not_active Ceased
- 1978-10-11 FR FR7829037A patent/FR2405853A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104455312A (en) * | 2014-09-30 | 2015-03-25 | 武汉理工大学 | Method for designing gear sector tooth profile of recirculating ball variable-ratio steering-gear gear pair |
CN104265859B (en) * | 2014-09-30 | 2017-01-11 | 武汉理工大学 | Design method for rack tooth profile of gear pair of recirculating ball type variable-ratio steering gear |
US11390203B2 (en) * | 2019-05-27 | 2022-07-19 | Faurecia Sièges d'Automobile | Armrest assembly for vehicle seat |
Also Published As
Publication number | Publication date |
---|---|
JPS5753234B2 (en) | 1982-11-11 |
FR2405853A1 (en) | 1979-05-11 |
DE2844359A1 (en) | 1979-04-26 |
GB2006385A (en) | 1979-05-02 |
FR2405853B1 (en) | 1985-05-24 |
GB2006385B (en) | 1982-07-14 |
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