Forward-reverse clutch control apparatus

Abstract

Abstract 1. A FORWARD-REVERSE CLUTCH CONTROL APPARATUS FOR USE WITH A VEHICLE COMPRISING: A. A FIRST HYDRAULICALLY OPERATED CLUTCH, B. A SECOND HYDRAULICALLY OPERATED CLUTCH, C. A SELECTOR VALVE ADAPTED TO SELECTIVELY RECEIVE HYDRAULIC FLUID UNDER PRESSURE FROM SAID FIRST AND SECOND CLUTCHES AND INTERRUPT THE FLUID SUPPLY FROM BOTH OF SAID FIRST AND SECOND CLUTCHES, SAID SELECTOR VALVE HAVING A PAIR OF RECIPROCATING SPOOLS, EACH OF SAID SPOOLS BEING AXIALLY RECIPROCATED ALONG THE LONGITUDINAL AXIS THEREOF TO ACTIVATE ONE SAID FIRST AND SECOND CLUTCHES RESPECTIVELY, D. BRAKING MEANS FOR BRAKING THE VEHICLE ON WHICH THE MECHANISM IS MOUNTED, E. A MANUALLY OPERATED MEMBER HAVING MEANS COUPLED TO SAID SPOOLS FOR SHIFTING SAID SPOOLS IN SAID SELECTOR VALVE TO ALTERNATELY ESTABLISH A CHANNEL OF PRESSURIZED FLUID FROM SAID FIRST AND SECOND CLUTCHING, AND F. ACTUATOR MEANS COUPLED TO SAID BRAKING MEANS AND ADAPTED TO LONGITUDINALLY SHIFT THE POSITION OF SAID SPOOLS CAUSING SAID SELECTOR VALVE TO MOVE INTO A NEUTRAL CONDUTION, IRRESPECTIVE OF THE POSITION OF SAID MANUALLY OPERATED MEMBER, UPON ACTIVATION OF SAID BRAKING MEANS. D R A W I N G

Inventors

• 👤 S Higuchi
• 👤 K Katayose

Bibliographic Details