Title:
DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/145836
Kind Code:
A1
Abstract:
In drive devices, there is a problem in that foreign bodies move into a hollow part from the distal end side of an input shaft during maintenance work. Provided is a drive device 100 comprising: an input shaft 2 in which a hollow part 22 penetrating in the axial direction is formed; a motor 1 that rotates the input shaft 2; a reduction gear 3 into which motive power of the motor 1 is input from the input shaft 2; an output shaft 5 that is inserted into the hollow part 22 of the input shaft 2 and that is rotated around a rotation axis L by the motive power output from the reduction gear 3; and a detection part 6 that detects rotation information of the input shaft 2 and the output shaft 5. A restriction member 7, which restricts the movement of foreign bodies into the hollow part 22 of the input shaft 2 from one side of the motor 1 toward the other side, is disposed within the hollow part 22 between the input shaft 2 and the output shaft 5.
Inventors:
JIANG NAN (JP)
NAKAGIRI HIROSHI (JP)
HOSHIJIMA KOTA (JP)
OMATA KENJI (JP)
NAKAGIRI HIROSHI (JP)
HOSHIJIMA KOTA (JP)
OMATA KENJI (JP)
Application Number:
PCT/JP2017/005082
Publication Date:
August 31, 2017
Filing Date:
February 13, 2017
Export Citation:
Assignee:
DAIHEN CORP (JP)
NIKON CORP (JP)
NIKON CORP (JP)
International Classes:
F16H57/029; B25J17/00; B25J19/00
Foreign References:
| JP2522495Y2 | 1997-01-16 | |||
| JP2010508456A | 2010-03-18 | |||
| JP3156488U | 2010-01-07 |
Other References:
See also references of EP 3421842A4
Attorney, Agent or Firm:
HIRAKI Yusuke et al. (JP)
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