Title:
スクリュー式エレベータ
Document Type and Number:
Japanese Patent JP6674329
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a simple elevator in which a hoistway 1 is compact and the number of components is small.SOLUTION: A hoistway 1 is surrounded by a wall surface 2, and a screw shaft 4 is arranged on a deep side opposed to an entrance 1a. The screw shaft 4 is driven to rotate by a drive device 6 in a pit 5, and this rotation is accompanied by lifting and lowering of a movable floor 3 provided with a nut member 8. The movable floor 3 is provided with roller guide devices 15 at a pair of corners close to the entrance 1a, and rollers 16A and 16B different by 90° in direction are pressed into contact with the wall surface 2. The movable floor 3 is guided by the wall surface 2 of the hoistway 1, and rotation of the movable floor 3 around the screw shaft 4 is regulated by the roller guide devices 15.SELECTED DRAWING: Figure 1
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Inventors:
Michihiro Ichihara
Takashi Onodera
Jiro Kajima
Joji Tanikawa
Kazuyoshi Yoshida
Morishige Tomohito
Takashi Onodera
Jiro Kajima
Joji Tanikawa
Kazuyoshi Yoshida
Morishige Tomohito
Application Number:
JP2016112399A
Publication Date:
April 01, 2020
Filing Date:
June 06, 2016
Export Citation:
Assignee:
Nippon Otis Elevator Co., Ltd.
International Classes:
B66B9/02; B66B7/04
Domestic Patent References:
| JP6340389A | ||||
| JP64075386A | ||||
| JP64075385A | ||||
| JP2009208914A | ||||
| JP60047700U |
Attorney, Agent or Firm:
Hiromichi Kobayashi
Tomioka Kiyoshi
Tomioka Kiyoshi