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Patent Searching and Data


Title:
TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/163670
Kind Code:
A1
Abstract:
A transmission device (1) is provided with: a first crown gear (21); a second crown gear (22); a third crown gear (23) having opposing teeth that oppose the first crown gear (21) and opposing teeth that oppose the second crown gear (22); and a cam unit (30) that tilts the third crown gear (23) relative to the first crown gear (21) and the second crown gear (22) such that the third crown gear (23) meshes with the first crown gear (21) and the third crown gear (23) meshes with the second crown gear (22), and that causes the third crown gear (23) to undergo a wave motion such that a meshing location moves in the circumferential direction. One of the first crown gear (21) and the second crown gear (22) has a plurality of speed-change gears (21A, 21B) that are partitioned in the radial direction and that have different tooth counts, and has a switching mechanism (40) that switches the speed-change gear to be fixed, from among the plurality of speed-change gears (21A, 21B).

Inventors:
TOMIYAMA Takamitsu (2-12-10, Shibaura, Minato-k, Tokyo 06, 〒1088506, JP)
HIROHASHI Tomomitsu (2-12-10, Shibaura, Minato-k, Tokyo 06, 〒1088506, JP)
IGUCHI Junichi (2-12-10, Shibaura, Minato-k, Tokyo 06, 〒1088506, JP)
KAWAKAMI Takayuki (2-12-10, Shibaura, Minato-k, Tokyo 06, 〒1088506, JP)
OSHIDA Takashi (2-12-10, Shibaura, Minato-k, Tokyo 06, 〒1088506, JP)
MIZUTANI Yuichi (2-12-10, Shibaura, Minato-k, Tokyo 06, 〒1088506, JP)
SATO Shogo (2-12-10, Shibaura, Minato-k, Tokyo 06, 〒1088506, JP)
AOYAMA Shodai (2-12-10, Shibaura, Minato-k, Tokyo 06, 〒1088506, JP)
SAITO Hideo (2-12-10, Shibaura, Minato-k, Tokyo 06, 〒1088506, JP)
KUSHIDA Kotaro (2-12-10, Shibaura, Minato-k, Tokyo 06, 〒1088506, JP)
Application Number:
JP2019/005582
Publication Date:
August 29, 2019
Filing Date:
February 15, 2019
Export Citation:
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Assignee:
THK CO., LTD. (2-12-10, Shibaura Minato-k, Tokyo 06, 〒1088506, JP)
International Classes:
F16H1/32
Foreign References:
JP2013087781A2013-05-13
JPH01118238U1989-08-10
JP2011241974A2011-12-01
JPS4949376U1974-04-30
Attorney, Agent or Firm:
OIKAWA Shu et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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