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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2017/135047
Kind Code:
Provided is a belt-type continuously variable transmission, wherein: a ball joint (13) comprises a joint housing (25) provided to a threaded shaft (19), and a ball stud (26) that extends from an arm (12) and is supported so as to be able to swing on the joint housing (25); the ball stud (26) has provided thereto a ball shaft section (26a) having a spherical outer peripheral surface, and a cylindrical shaft section (26b) that is coaxial with the ball shaft section (26a), has a smaller diameter than the diameter thereof, and has a cylindrical outer peripheral surface; and the joint housing (25) has provided thereto a ball support surface (25a) into which the ball shaft section (26a) is fitted, and a stopper surface (25b) that abuts against the outer peripheral surface (26b') of the cylindrical shaft section (26b) and regulates an angle of rotation about the axis (X1) of the threaded shaft (19) to a certain angle α. Due to this configuration, rotational force from a motor can be precisely converted to thrust for the threaded shaft to drive a pulley, and a configuration with a small number of parts and simple structure can be provided.

FUJIKAWA Kazutoshi (39-5, Aza Daizen, Ueta-cho, Toyohashi-sh, Aichi 60, 〒4418560, JP)
OKAMOTO Teruhisa (39-5, Aza Daizen, Ueta-cho, Toyohashi-sh, Aichi 60, 〒4418560, JP)
YOSHIDA Yoshihiro (39-5, Aza Daizen, Ueta-cho, Toyohashi-sh, Aichi 60, 〒4418560, JP)
Application Number:
Publication Date:
August 10, 2017
Filing Date:
January 19, 2017
Export Citation:
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MUSASHI SEIMITSU INDUSTRY CO., LTD. (39-5, Aza Daizen Ueta-cho, Toyohashi-sh, Aichi 60, 〒4418560, JP)
International Classes:
F16H9/18; F16C11/06
Attorney, Agent or Firm:
OCHIAI & CO. (TO Building, 6-3 Taito 2-chome, Taito-k, Tokyo 16, 〒1100016, JP)
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