Title:
DOOR UNLOCKING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/085323
Kind Code:
A1
Abstract:
A door 12 closing an opening of a body 11 is put into an openable state by driving a movable member 14 by means of electromagnetic force generated in an electromagnet. An electromagnetic drive mechanism is provided in a control unit on the side of the door 12, for example, and drives the movable member 14. An unlocking unit is electrically connectable to the control unit, and has a power supply incorporated therein. The unlocking unit outputs a data signal comprising a pulse sequence when electrically connected to the control unit. When the unlocking unit is electrically connected, the control unit drives the movable member 14 via the electromagnetic drive mechanism to put the door 12 into an openable state only upon determining that all the pulses of the data signal are normal.
Inventors:
MURAKAMI KAZUTO (JP)
Application Number:
PCT/JP2021/033035
Publication Date:
April 28, 2022
Filing Date:
September 08, 2021
Export Citation:
Assignee:
OZMA ELECTRONIC CONTROL CO LTD (JP)
International Classes:
E05B49/00; E05B19/00; E05B47/00
Foreign References:
| JPS5428694U | 1979-02-24 | |||
| JPS58181871U | 1983-12-05 | |||
| JPH0514442U | 1993-02-26 |
Attorney, Agent or Firm:
MATSUURA Takashi (JP)
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