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    • 1. 发明专利
    • ELEVATOR AND GUIDE DEVICE THEREOF
    • JPH0524768A
    • 1993-02-02
    • JP18079991
    • 1991-07-22
    • HITACHI LTDHITACHI MITO ENG KK
    • SHIGETA MASAYUKISHIBATA TADASHISUGAWARA JIYUNNAKAMURA ICHIROMIMORI KIYOYASU
    • B66B7/04B66B11/02
    • PURPOSE:To prevent transverse oscillation of a riding cage by absorbing a transverse fluctuating load component caused by curving a rail for guiding the riding cage of an elevator. CONSTITUTION:In a guide device 4, a guide piece brought into contact with a rail is supported by a spring. Electromagnets 12A, 12B for attracting the rail 3 are provided in a guide piece supporting member 7 which is rotatably supported to a guide piece bed 8 by a pin 9. Further, the guide device 4 is provided with a control unit not shown in the drawing, that is, sensor not shown in the drawing for detecting displacement of the guide piece supporting member 7 by distortion of the rail 3 at the time of lifting a riding cage 2 and a controller for controlling an excitation condition of the electromagnets 12A, 12B, for instance, direction and intensity of a current so as to eliminate this detected displacement. In this way, a transverse fluctuating load component by curving the rail for guiding the riding cage is absorbed by elasticity of the guide piece and prevented from being transmitted the riding cage, and an elevator having a comfortable feeling to ride with no transverse oscillation can be obtained.
    • 4. 发明专利
    • CYLINDRICAL ROTATOR
    • JPS55120353A
    • 1980-09-16
    • JP2674479
    • 1979-03-09
    • HITACHI LTD
    • SATOU MASAYUKITAKAHASHI RIKUROUMIMORI KIYOYASU
    • H02K9/00H02K55/00H02K55/04
    • PURPOSE:To smooth the flow of vapour and to minimize free surface of liquid helium etc. by providing an inside cylinder in a rotary cylinder. The inside cylinder has an exist which gradually making small cross-sectional area towards the rotating center. CONSTITUTION:The vapour of liquid He is injected into a middle chamber 28 in an ultra-conductive rotor 2 in the direction of a solid line arrow through an injection pipe 24 and an exhauster 26. When the rotary velocity of the rotor 2 arrives at over fixed value, liquid He is injected instead of vapour. The liquid He is biased towards an inner wall 8 of a torque tube 3 by centrifugal force and the liquid flows into a field winding chamber 15 from a through hole 4. A part of the liquid flows to the chamber 15 or vice versa through the hole 4 which is installed on the tube 3 to cool an ultra-conductive field winding 6. Gassed vapour after cooling is exhausted to an cylinder chamber 25 through a nozzle 21 in the direction of a dotted arrow wherein the caliber of the nozzle 21 becomes smaller towards the rotating center of an inner cylinder 20.