Title:
SPEED REDUCER
Document Type and Number:
WIPO Patent Application WO/2023/188071
Kind Code:
A1
Abstract:
Provided is a speed reducer constructed in a well-balanced, compact size. A speed reducer (W1) comprises: an input shaft (1) with an eccentric part (1a); an output shaft (10) having a flange part (10a), and a circular hole (10b) formed in the flange part (10a), on a circumferential orbit centered on a rotation axis; a fixed inner trochoid plate (7) having a through-hole (7a), and a wavy curved surface formed on an inner circumferential side surface (7b) of the through-hole; a pin (6) held between the inner circumferential side surface (7b) of the inner trochoid plate (7) and an outer circumferential side surface of the eccentric part (1a); and a holding member (8) that holds the pin (6) while restricting rotation of the pin (6). One end of the pin (6) is rotatably received in the circular hole (10b) while being at least partially abutted on the inner circumferential side surface of the circular hole (10b). The rotation of the input shaft (1) causes a rotational motion of the pin (6) around the eccentric part (1a), and the rotational motion of the pin causes the output shaft (10) to rotate.
Inventors:
YOSHINO RYOICHI (JP)
KAMEDA MICHIHIRO (JP)
KIMORI TAKATOSHI (JP)
SATO DAIKI (JP)
KAMEDA MICHIHIRO (JP)
KIMORI TAKATOSHI (JP)
SATO DAIKI (JP)
Application Number:
PCT/JP2022/015856
Publication Date:
October 05, 2023
Filing Date:
March 30, 2022
Export Citation:
Assignee:
NITTAN CORP (JP)
International Classes:
F16H1/32
Foreign References:
| JP2011027253A | 2011-02-10 | |||
| JP2001099263A | 2001-04-10 | |||
| CN211145241U | 2020-07-31 | |||
| JP2020128817A | 2020-08-27 |
Attorney, Agent or Firm:
YAGI Hidehito et al. (JP)
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