Title:
LANDING DOOR SWITCH CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2022/224389
Kind Code:
A1
Abstract:
The landing door switch circuit according to the present disclosure comprises an upper-car safety circuit 20, an upper-car supplementary circuit 30, a lower-car safety circuit 40, and a lower-car supplementary circuit 50. Each of the upper-car safety circuit 20 and the lower-car safety circuit 40 has: a main circuit 20a, 40a by which are connected a power supply 60 and excitation coils 23b, 24b, 43b, 44b of a switch in a power supply 61 that drives an upper car 14 and a lower car 18, and to which a landing door switch 21, 41 is connected in series; and a first connection unit 22 or third connection unit 42 branching from the main circuit 20a, 40a. The upper-car supplementary circuit 30 and the lower-car supplementary circuit 50 have a second connection unit 31 and a fourth connection unit 51 in the lower car 18 and the upper car 14, respectively, and bypass the landing door switch 21, 41.
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Inventors:
KUBOTA TAKEHIKO (JP)
Application Number:
PCT/JP2021/016240
Publication Date:
October 27, 2022
Filing Date:
April 22, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B66B3/00; B66B1/18; B66B13/22
Domestic Patent References:
| WO2013145144A1 | 2013-10-03 | |||
| WO2019224938A1 | 2019-11-28 | |||
| WO2014006720A1 | 2014-01-09 |
Foreign References:
| JP2004331397A | 2004-11-25 | |||
| JP2011506223A | 2011-03-03 |
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
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