Title:
自動車用減速機付きモータ駆動装置
Document Type and Number:
Japanese Patent JP6518106
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a motor drive device with an automobile speed reducer capable of reducing a number of press-in components of a dust cover and an oil seal installed between an opening portion of a speed reducer casing pulling out an output shaft and the output shaft.SOLUTION: A sealing portion 36 configuring a labyrinth seal is provided between an opening portion 35c of a speed reducer casing and an output shaft, thereby making the sealing portion 36 function as a dust cover. The sealing portion 36 is formed by a slinger 38 composed of a cylindrical externally fitting fixing portion 38a pressed in an outer surface of the output shaft, and a flange portion 38b opposing between an end surface of the opening portion 35c of the speed reducer casing and the flange portion 38b through a labyrinth clearance. A slide lip portion 40d of an oil seal 40 installed to a space portion between the opening portion 35c of the speed reducer casing and the output shaft is installed to the slinger 38, thereby reducing a number of seal components.SELECTED DRAWING: Figure 5
Inventors:
Yuichiro Kawakami
Tetsuya Yamamoto
Tetsuya Yamamoto
Application Number:
JP2015066148A
Publication Date:
May 22, 2019
Filing Date:
March 27, 2015
Export Citation:
Assignee:
ntn corporation
International Classes:
F16H57/029; F16C33/78; F16C33/80; F16H1/06; F16J15/447; H02K7/116
Domestic Patent References:
| JP11243664A | ||||
| JP2002276820A | ||||
| JP60085659U |
Foreign References:
| CN104455054A | ||||
| WO2009078314A1 |
Attorney, Agent or Firm:
Torii Kazuhisa
Torii Hiroshi
Torii Hiroshi