Title:
ELEVATOR APPARATUS
Document Type and Number:
Japanese Patent JP2016141537
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve an apparatus outputting a position signal of a cage 2 to an apparatus forcing the cage 2 to decelerate at upper and lower end parts on an elevation path 1.SOLUTION: A photoelectronic sensor 4 is provided on the cage 2. A plurality of A phase, B phase and Z phase plates are arranged at a predetermined position on the elevation path 1 opposing to the photoelectronic sensor 4. The A phase and B phase plates are arranged in such a manner that there is less gap space G at a position nearer center of the elevation path 1 and there is much gap space G at a position nearer end part of the elevation path 1. A plate group at the lower side of the elevation path 1 has one more gap space G than a plate group at the upper side. In addition, the A phase plate is arranged in such a manner as to be shifted slightly upper than the B phase plate at the upper side, while being shifted slightly lower at the lower side. In addition, the Z phase plate is arranged so that A phase and B phase plates are hidden when seen in a longitudinal section. In addition, it is detected which section the cage 2 stays by detecting and counting a boundary or upper and lower edges (edges) of the gap space G of each plate with the photoelectronic sensor 4.SELECTED DRAWING: Figure 1
Inventors:
KANEKO MOTOKI
KATAYAMA SATOSHI
KATAYAMA SATOSHI
Application Number:
JP2015019169A
Publication Date:
August 08, 2016
Filing Date:
February 03, 2015
Export Citation:
Assignee:
FUJITEC KK
International Classes:
B66B3/02; B66B1/36; B66B5/06
Domestic Patent References:
| JP2006188319A | 2006-07-20 | |||
| JPS58216873A | 1983-12-16 | |||
| JP2004067252A | 2004-03-04 | |||
| JPH0367881A | 1991-03-22 | |||
| JP2013040029A | 2013-02-28 | |||
| JPH05338949A | 1993-12-21 |