Title:
OIL PRESSURE ELEVATOR
Document Type and Number:
Japanese Patent JPS56136767
Kind Code:
A
Abstract:
A hydraulic elevator for ascending and descending operation of a car by feeding or discharging a hydraulic fluid through a flow rate control device between a hydraulic pump connected to a reversible motor and a hydraulic cylinder. The elevator includes a one-way clutch connected between the motor and the hydraulic pump so as to transmit the normal driving force of the motor to the hydraulic pump in the ascending operation of the car and to apply regenerative braking force to the hydraulic pump in the descending operation of the car when the revolution speed of the hydraulic pump is increased over the synchronous speed of the reverse rotation of the motor.
Inventors:
ITOU TAKUZOU
SUZUKI TADASHI
MIYAKE TATSUO
SUZUKI TADASHI
MIYAKE TATSUO
Application Number:
JP3878280A
Publication Date:
October 26, 1981
Filing Date:
March 26, 1980
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
B66B1/26; B66B1/04; B66B9/04; F15B11/04; (IPC1-7): B66B1/26; B66B9/04; F15B11/04