Title:
HYDRAULIC DEVICE
Document Type and Number:
Japanese Patent JP3718001
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hydraulic device which can be driven and controlled by directly connecting a plurality of hydraulic actuators to a single hydraulic pump.
SOLUTION: A hydraulic pump 1 is used which is driven by an electric motor 6 and can be rotated in both directions according to its forward or backward rotation. Ports 15 to 20 of each of the hydraulic actuators 12 to 14 are connected in parallel to both ports 2 and 4 of the hydraulic pump 1 through pipe lines 8 and 10, and electromagnetic valves 22 to 24 are provided in the pipe line 8 for each of the hydraulic actuators 12 to 14. The hydraulic actuators 12 to 14 to be driven are controlled by opening/closing of each of the electromagnetic valves 22 to 24, and the operating direction of the hydraulic actuators 12 to 14 is controlled by forward/backward rotation of the electric motor 6. Moreover, a positional sensor 36 is provided for detecting displacement of the single hydraulic actuator 12, and the electric motor 6 is controlled based on its signal.
Inventors:
Yogo Lighting
Application Number:
JP14618296A
Publication Date:
November 16, 2005
Filing Date:
June 07, 1996
Export Citation:
Assignee:
Opton Co., Ltd.
International Classes:
F15B9/04; F15B9/08; F15B11/20; (IPC1-7): F15B9/04; F15B9/08; F15B11/20
Domestic Patent References:
| JP6391702U | ||||
| JP4750935B1 | ||||
| JP3239801A | ||||
| JP5077688U | ||||
| JP5865301A | ||||
| JP349914A |
Attorney, Agent or Firm:
Tsutomu Adachi