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Title:
BELT-TYPE CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2018/168575
Kind Code:
A1
Abstract:
A belt-type continuously variable transmission equipped with: a transmission member (89) arranged so as to be incapable of displacement in the axial direction relative to a fixed sheave (71), and having a cam surface (89a) that approaches the fixed sheave as the distance from the rotational axis (Xis) of a crankshaft (32) increases; a centrifugal weight (76) that is sandwiched between the transmission member and a movable sheave (72) and that moves along the cam surface in the centrifugal direction in response to increased centrifugal force, thereby driving the movable sheave in the axial direction; an amplification member (93) mechanically coupled to the movable sheave and having multiple restricting bodies (92) that move along a prescribed trajectory with an amount of displacement that amplifies the amount of axial displacement of the movable sheave; and a lock member (94) that is linearly displaced between a first position in which the lock member contacts any one of the restricting bodies of the amplification member and restricts the movement of the restricting body, and a second position in which the lock member moves away from the restricting body and allows movement of the restricting body. Thus, it is possible to provide a belt-type continuously variable transmission with which the transmission gear ratio can be fixed with an inexpensive structure.

Inventors:
MATSUURA Kohei (4-1, Chuo 1-chome, Wako-sh, Saitama 93, 〒3510193, JP)
ADACHI Jun (4-1, Chuo 1-chome, Wako-sh, Saitama 93, 〒3510193, JP)
HAYASHI Tensei (4-1, Chuo 1-chome, Wako-sh, Saitama 93, 〒3510193, JP)
MORITA Go (4-1, Chuo 1-chome, Wako-sh, Saitama 93, 〒3510193, JP)
TOKITO Akira (4-1, Chuo 1-chome, Wako-sh, Saitama 93, 〒3510193, JP)
Application Number:
JP2018/008577
Publication Date:
September 20, 2018
Filing Date:
March 06, 2018
Export Citation:
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Assignee:
HONDA MOTOR CO., LTD. (1-1 Minami-Aoyama 2-chome, Minato-ku Tokyo, 56, 〒1078556, JP)
International Classes:
F16H9/18
Foreign References:
JP2013210078A2013-10-10
JP2012047292A2012-03-08
JP2011163470A2011-08-25
JP2014196775A2014-10-16
Attorney, Agent or Firm:
OCHIAI & CO. (TO Building, 6-3 Taito 2-chome, Taito-k, Tokyo 16, 〒1100016, JP)
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