Operating device for winch control valves

Details Operating device for winch control valves Operating device for winch control valves

1975-10-22

1978-01-10

Makay, Albert J.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

74471R, 137636, B66D 100

Patent

active

040675467

ABSTRACT:
An operating device for winch control valves, featuring that, in a construction wherein a valve of a clutch for winding up a winch, a valve of a clutch for winding down the winch, and a valve of a brake can be operated by a single control lever to thus simplify the operation of the winch, the boss section of the primary lever linked with a spool of the valve for winding up the winch and the boss section of the secondary lever linked with a spool of the valve of the brake are put to interlocking rotation only at the time of rotation in the unitary direction, the boss section of the said secondary lever and the boss section of the tertiary lever linked with a spool of the valve for winding down the clutch are properly interlocked with each other only at the time of rotation in the unitary direction, a couple of positions as are confronted with each other on the both sides of the center of rotation of a rotator to be put to rotation either forward or backward by the operating lever are properly linked with the said primary lever and the said tertiary lever, respectively, through a loose mechanism.

REFERENCES:
patent: 2958384 (1960-11-01), Hull
patent: 3407682 (1968-10-01), Yoshizawa et al.
patent: 3768328 (1973-10-01), Campbell
patent: 3854380 (1974-12-01), Casey

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