Motors: expansible chamber type – With correlated control of motive fluid and locking means – Sequential operation of locking means and motive fluid control
Patent
1996-07-30
1997-09-02
Denion, Thomas E.
Motors: expansible chamber type
With correlated control of motive fluid and locking means
Sequential operation of locking means and motive fluid control
91196, 91216R, 92151, 92117A, 92 28, 188265, 188 67, F15B 1526
Patent
active
056620209
ABSTRACT:
A forward-moving inching unit and a backward-moving inching unit are built in a casing (1) which is slidable relative to a guide member (b). Each of the inching units is made up of an inching piston (60), a brake piston (61) disposed in a direction opposite to the inching piston (60), a lock member (62) disposed between the inching piston (60) and the brake piston (61) to tighten the guide member (b) when pinched between both the pistons (60, 61), a spring (63) for urging the pistons (61) to the right/to the left, a first pressure chamber (64) for pressing the brake piston (61) to the right/to the left, a second pressure chamber (65) for pressing the inching piston (60) in the opposite direction, and a valve block (2) for inputting, at the time of forward-moving inching, a fluid pressure into the second pressure chamber (65) of the forward-moving inching unit and the first pressure chamber (64) of the backward-moving inching unit and for inputting, at the time of backward-moving inching, the fluid pressure into the second pressure chamber (65) of the backward-moving inching unit and the first pressure chamber (64) of the forward-moving inching unit.
REFERENCES:
patent: 2988058 (1961-06-01), Warnecke
patent: 3176590 (1965-04-01), Uhtenwoldt et al.
patent: 3586138 (1971-06-01), Engle
patent: 4214795 (1980-07-01), Kakuminato
patent: 4564088 (1986-01-01), Takahashi et al.
patent: 4577732 (1986-03-01), Gottling
patent: 4724741 (1988-02-01), Wirth
Asakura Toshikazu
Morita Hirobumi
Denion Thomas E.
Honda Giken Kogyo Kabushiki Kaisha
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