Title:
SPEED-CHANGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/070261
Kind Code:
A1
Abstract:
A speed-changing device (21) is provided with an input axis (22), an output axis (23), a planetary gear mechanism (29), a first variator (33), a second variator (34), and a controller (25). The planetary gear mechanism (29) is configured by including a carrier (29A) connected to the input axis (22), a first sun gear (29B) connected to the first variator (33), and a second sun gear (29C) connected to the output axis (23). The second variator (34) transmits power transmitted from the first variator (33) to the output axis (23), or transmits power transmitted from the output axis (23) to the first variator (33). The controller (25) changes the rotation speed of the first variator (33), thereby changing the rotation speed of the output axis (23) in relation to the rotation speed of the input axis (22).
Inventors:
KOINUMA TAKUMA (JP)
Application Number:
PCT/JP2020/036938
Publication Date:
April 07, 2022
Filing Date:
September 29, 2020
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
F16H3/72; F16H3/74
Domestic Patent References:
| WO2006027983A1 | 2006-03-16 |
Foreign References:
| JP2001317611A | 2001-11-16 | |||
| JP2008247269A | 2008-10-16 | |||
| JP5095252B2 | 2012-12-12 |
Attorney, Agent or Firm:
HIROWA PATENT FIRM (JP)
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