Title:
油圧式車軸駆動装置
Document Type and Number:
Japanese Patent JP7022985
Kind Code:
B2
Abstract:
To provide compact parking brake means without a complicated link mechanism.SOLUTION: Axle driving devices 4L, 4R comprises: a housing 41 for supporting axles 5L, 5R and storing therein an oil; a stepless speed change device 40 using the oil as a hydraulic oil; and a parking brake mechanism 20 for regulating rotation of the axles 5L, 5R. The parking brake mechanism 20 comprises: a brake rotor 21 capable of rotating coaxially to a motor shaft 48 serving as a shaft center; a lock member 22 which can be displaced between a first position X for engaging the brake rotor 21 and a second position Y where the brake rotor 21 is not engaged; and a spring member 24 for always energizing the lock member 22 to the first position X. The lock member 22 comprises an engagement part 22a fitted to a recess 21a at the first position X, and a non-engagement part 22b arranged on a position corresponding to the recess 21a at the second position, and there is provided a charge pump 70 for displacing the lock member 22 to the second position Y against the energization force F of the spring member 24 by hydraulic oil pressure.SELECTED DRAWING: Figure 5
Inventors:
Jun Matsuura
Koji Iwaki
Norifumi Yasuda
Koji Iwaki
Norifumi Yasuda
Application Number:
JP2018045978A
Publication Date:
February 21, 2022
Filing Date:
March 13, 2018
Export Citation:
Assignee:
Kanzaki Luxury Machinery Co., Ltd.
International Classes:
B60T1/06; F16D63/00; F16H63/34
Domestic Patent References:
| JP2007153130A | ||||
| JP2016223434A |
Foreign References:
| WO2014203898A1 |
Attorney, Agent or Firm:
Yanouchi Foreign Patent Office
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