Motors: expansible chamber type – With correlated control of motive fluid and locking means – Working member position control of motive fluid and locking...
Patent
1992-08-12
1994-08-30
Look, Edward K.
Motors: expansible chamber type
With correlated control of motive fluid and locking means
Working member position control of motive fluid and locking...
60435, 92 15, F15B 1526, F16D 3102
Patent
active
053417224
ABSTRACT:
A positioning apparatus can perform high-accuracy positioning in a short time without a Curvic (trademark) or positioning coupling. With provision of a hydraulic motor having a rotary shaft fixed to a turret head and a hollow type rotary encoder for detecting the angle of rotation of the rotary shaft, rotation of the hydraulic motor is controlled by a controller via a control valve. Locking of the rotary shaft is performed by a rebound force of a spring provided in a hydraulic cylinder by pressing a pad provided at a tip portion of a rod against a disk. Unlocking of the rotary shaft is performed by supplying a hydraulic fluid into a cylinder chamber by switching a directional control valve.
REFERENCES:
patent: 4194365 (1980-03-01), Stoufflet et al.
patent: 4215545 (1980-08-01), Morello et al.
patent: 4507993 (1985-04-01), Silverman et al.
patent: 4531431 (1985-07-01), Dreher et al.
patent: 4653924 (1987-03-01), Itonaga et al.
patent: 4807338 (1989-02-01), Myles
Patent Abstracts of Japan, vol. 12, No. 470 (P798) Dec., 1988 & JP-A-63 191 020 (Tamagawa Seiki) Aug. 8, 1988, abstract only.
Tani Nobuyuki
Yamaguchi Tenzo
Daikin Industries Ltd.
Look Edward K.
Nguyen Hoang
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