Title:
WHEEL-IN SPEED REDUCER AND WHEEL UNIT
Document Type and Number:
Japanese Patent JP2016031075
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a structure capable of separating part of a speed reduction mechanism with a slight displacement amount and reducing an external force necessary to rotate a wheel when the wheel is to be rotated by the external force.SOLUTION: This wheel-in speed reducer 1 comprises: a sun roller 10; a plurality of planetary rollers 20; and an internal ring 30. The planetary rollers 20 revolve while rotating on their axes by receiving power from the sun rollers 10 while contacting both the sun roller 10 and the internal ring 30. With this configuration, a rotational motion of the sun roller 10 is converted to a revolution motion at a lower revolving speed than the rotation motion so as to rotate a wheel 70. Furthermore, if a wheel 70 is to be rotated by an external force, a release mechanism 80 releases the planetary rollers 20 from the internal ring 30.SELECTED DRAWING: Figure 1
Inventors:
IMAMURA TADASHI
Application Number:
JP2014152084A
Publication Date:
March 07, 2016
Filing Date:
July 25, 2014
Export Citation:
Assignee:
NIDEC SHIMPO CORP
International Classes:
F16H13/08
Domestic Patent References:
| JPS57130042U | 1982-08-13 | |||
| JP2008196657A | 2008-08-28 | |||
| JPH04210149A | 1992-07-31 | |||
| JP2002078289A | 2002-03-15 | |||
| JP2003174246A | 2003-06-20 |
Attorney, Agent or Firm:
Nidec Corporation
Takami Nishida
Takami Nishida