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Patent Searching and Data


Title:
SAFETY DEVICE IN CAR OF ELEVATOR
Document Type and Number:
Japanese Patent JP2008184256
Kind Code:
A
Abstract:

To provide a safety device in a car of an elevator capable of preventing a child from being confined in the car, without prolonging unnecessarily a door open state, or without issuing an announcement.

This safety device in the car of the elevator is provided with the first photoelectric device and the second photoelectric device having light projection units 31, 33 for projecting in parallel a plurality of light beams crossing horizontally a space in the car of the elevator, and photoreception units 32, 34 provided in positions opposed to the light projection units to receive the light beams and for detecting changes of photoreception quantities, the first photoelectric device projects the light beam in a position sufficiently higher than a national average height of the lower classes of school children, and the second photoelectric device projects the light beam in a position higher than an average height, lower than a usual adult height, and higher than the first photoelectric device.


Inventors:
AOKI GIICHI
Application Number:
JP2007018015A
Publication Date:
August 14, 2008
Filing Date:
January 29, 2007
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
MITSUBISHI ELEC BUILDING TECHN
International Classes:
B66B3/00; B66B11/02
Attorney, Agent or Firm:
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda