ELEVATOR CAR POSITION DETECTION DEVICE

WIPO Patent Application WO/2014/132435

A1

Provided is an elevator car position detection device wherein a magnetic field generator generates an eddy current magnetic field in discrimination members, and a magnetic field detector detects the eddy current magnetic field generated in the discrimination members. The discrimination members are disposed continuously along the vertical-lift direction of the car and have a plurality of conductors the plate thickness of which is relatively different with respect to the skin depth of the eddy currents generated in the discrimination members by the magnetic field generator. The shape of at least some of the boundaries between adjacent conductors is a straight line or curved line inclined with respect to a direction perpendicular to the vertical-lift direction of the car.

INOUE JIN (JP)
KURATA EMIKO (JP)
WATANABE YOSHIMASA (JP)
SHIRATSUKI AKIHIDE (JP)
NISHIZAWA HIROSHI (JP)
NAKAJIMA HAJIME (JP)
ISHIKAWA MASAHIRO (JP)

PCT/JP2013/055652

September 04, 2014

March 01, 2013

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MITSUBISHI ELECTRIC CORP (JP)
INOUE JIN (JP)
KURATA EMIKO (JP)
WATANABE YOSHIMASA (JP)
SHIRATSUKI AKIHIDE (JP)
NISHIZAWA HIROSHI (JP)
NAKAJIMA HAJIME (JP)
ISHIKAWA MASAHIRO (JP)

B66B3/02; B66B1/40; B66B5/00

JP2009263108A	2009-11-12
JPS5057657A	1975-05-20
JP2012162383A	2012-08-30

SOGA, Michiharu et al. (JP)
Michiharu Soga (JP)

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