Elevator – industrial lift truck – or stationary lift for vehicle – Industrial lift truck or required component thereof – Having control for load support drive-means
Patent
1998-03-20
2000-12-26
Kramer, Dean J.
Elevator, industrial lift truck, or stationary lift for vehicle
Industrial lift truck or required component thereof
Having control for load support drive-means
187275, 187223, 414636, B66F 922
Patent
active
061644153
ABSTRACT:
A lift control valve is switched based on the manipulation of a lift lever, so that a lift cylinder extends or retracts to move a fork, supported on a mast, to move up or down. A check valve, which is actuated with a pilot pressure, is placed between the lift control valve and the lift cylinder. A pilot pipe led out from a pipe directly coupled to an oil tank is connected to a port of the check valve. A tilt control valve is switched based on the manipulation of a tilt lever, so that a tilt cylinder extends or retracts to tilt the mast. An electromagnetic valve is disposed between the tilt cylinder and the tilt control valve. When values necessary to drive the fork are detected, a controller control the electromagnetic valve based on those values.
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Patent Abstracts of Japan, Publication No. 09025099, published Jan. 28, 1997, Automatic Tilt Angle Adjusting Device.
Matsuzaki Takeharu
Nakajima Shigeto
Naruse Yasuhiko
Takeuchi Toshiyuki
Tsukada Makio
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
Kramer Dean J.
Tran Thuy V.
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