B - Operations – Transporting – 60 – K
Patent
B - Operations, Transporting
60
K
B60K 20/00 (2006.01) F04B 1/20 (2006.01) F04B 1/22 (2006.01) F04B 1/32 (2006.01) F16H 61/42 (2006.01)
Patent
CA 2386875
In a configuration comprising a hydraulic servo mechanism (6) having a spool (72) as a hydraulic valve for controlling the swash plate angle disposed within a body housing (3) of a hydraulic continuously variable transmission (1 or 2), and a manual operation member (20) for operating the hydraulic servo mechanism disposed outside of the body housing, a casing (33) is provided between the manual operation member and the body housing, a neutral position holding mechanism (11) for holding the neutral position of a movable swash plate and a rotation control mechanism (34) for controlling the maximum rotating angle of the movable swash plate are installed in the casing, and further an over-stroke absorbing mechanism (27, 40) for absorbing the over-stroke of the manual operation member is installed in an area ranging from the inside of the casing to the inside of the body housing, and moreover a spool operating member (41) moving by operation of the manual operation member is disposed movably almost integrally with the spool.
L'invention concerne une transmission hydraulique à variation continue (1 ou 2) présentant un logement (3) de corps contenant un servomécanisme hydraulique (6) comportant une bobine (72) faisant office de soupape hydraulique destinée à commander l'angle d'un plateau incliné et portant un élément de commande manuelle (20) destiné à faire fonctionner le servomécanisme hydraulique, un carter (3) est disposé entre l'élément de fonctionnement manuel et le logement du corps, un mécanisme (1) de maintien de position neutre destiné à maintenir la position neutre d'un plateau oblique mobile et un mécanisme (34d) de commande de rotation réglant l'angle de rotation maximum du plateau oblique mobile sont installés dans le carter, des mécanismes (27, 40) équilibrant la course excessive de l'élément de fonctionnement manuel sont installés dans une zone allant de l'intérieur du carter jusqu'à l'intérieur du logement du corps, et un élément (41) de commande de bobine déplacé par le fonctionnement de l'élément de commande manuelle est disposé mobile et d'une manière générale solidaire de la bobine.
Battison Williams Dupuis
Yanmar Co. Ltd.
Yanmar Diesel Engine Co. Ltd
LandOfFree
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