Title:
REDUCTION GEAR DEVICE
Document Type and Number:
Japanese Patent JP3434432
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a reduction gear device to generate low speed and high torque rotation and reduce size and weight and be manufactured at a low cost.
SOLUTION: The output shaft 2 of a reduction gear consists of a plurality of rotary shafts 2a and 2b rotatable from each other and arranged on the same axis and a cam ring 4 having a radially uneven cam surface 3 formed on an inner peripheral surface in a state to surround one rotary shaft thereof is securely arranged. A cylinder block 6 is provided to form a plurality of cylinders 7 to contain a piston 8 radially moved through slide contact with the cam surface 3. A sun gear 14 and a planetary gear 16 rotated through engagement with an internal tooth gear 15 securely arranged at the periphery thereof are rotatably attached on other rotary shaft. A cylinder block is brought into close contact with a slide valve 10 inclined because of the rotary shaft 2a being arranged oscillatorily around the tip part 2c thereof.
Inventors:
Hiroshi Osodo
Satoshi Otsuka
Satoshi Otsuka
Application Number:
JP13517497A
Publication Date:
August 11, 2003
Filing Date:
May 26, 1997
Export Citation:
Assignee:
Uchida Hydraulic Equipment Industry Co., Ltd.
Okubo Gear Industry Co., Ltd.
Okubo Gear Industry Co., Ltd.
International Classes:
F16H1/28; F16H39/16; F16H47/04; (IPC1-7): F16H47/04; F16H39/16
Domestic Patent References:
| JP6118522A | ||||
| JP6251765A | ||||
| JP811490B2 |
Other References:
【文献】国際公開94/023918(WO,A1)
【文献】国際公開96/023670(WO,A1)
【文献】国際公開96/023670(WO,A1)
Attorney, Agent or Firm:
Kinichi Kitamura (3 others)