Title:
輪列機構、ギヤボックス、駆動装置及び電子機器
Document Type and Number:
Japanese Patent JP6883473
Kind Code:
B2
Abstract:
In a wheel train mechanism, a first speed reduction gear, a second speed reduction gear, a third speed reduction gear, a fourth speed reduction gear and an output gear are all made of a resin material. The third speed reduction gear and the fourth speed reduction gear are disposed at a rear stage of the second speed reduction gear and made of a material having rigidity higher than that of the first speed reduction gear and the second speed reduction gear. The output gear is disposed at a rear stage of the fourth speed reduction gear and is made of a material having rigidity higher than that of the fourth speed reduction gear.
Inventors:
Koichi Masuzawa
Kenichi Kudo
Kenichi Kudo
Application Number:
JP2017109392A
Publication Date:
June 09, 2021
Filing Date:
June 01, 2017
Export Citation:
Assignee:
Seiko Instruments Inc.
International Classes:
F16H1/06; F16H55/06; G02B7/08; G03B9/02; G03B11/00; G03B15/00; G03B17/02
Domestic Patent References:
| JP3156581U | ||||
| JP2014035004A |
Foreign References:
| DE19940184A1 |
Attorney, Agent or Firm:
Field Saki Satoshi
Shingo Suzuki
Nishizawa Kazumi
Shingo Suzuki
Nishizawa Kazumi