Title:
HYDRAULIC ELEVATOR MODIFICATION METHOD AND ELEVATOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/216862
Kind Code:
A1
Abstract:
A hydraulic elevator modification method for modifying a hydraulic elevator device comprising a hydraulic cylinder and a plunger, into a linear-motor elevator device comprises: a first step for mounting, on the hydraulic cylinder, a cylindrical linear motor with a primary coil formed so as to surroundthe plunger; a second step for installing a braking mechanism which brakes the vertical movement of a car; and a third step for installing a controller which controls the linear motor.
Inventors:
UGAWA KIMITAKE (JP)
Application Number:
PCT/JP2016/067637
Publication Date:
December 21, 2017
Filing Date:
June 14, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B66B7/00; B66B9/02; B66B9/04
Foreign References:
| JPS5543028B2 | 1980-11-04 | |||
| JPH0737314B2 | 1995-04-26 | |||
| JPH072458A | 1995-01-06 | |||
| JPH0313480A | 1991-01-22 | |||
| JP2557932B2 | 1996-11-27 | |||
| US5404968A | 1995-04-11 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
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