Title:
SAFETY DEVICE INSTALLED AT ELEVATOR ENTRANCE
Document Type and Number:
Japanese Patent JPS5235048
Kind Code:
A
Abstract:
PURPOSE: To detect an obstacle existing around the landing entrance, by provision of an apparatus which projects at the time of door closing an energy wave such as light beam, supersonic wave, etc. to the cage in two directions, horizontal and downward.
Inventors:
MARUHASHI AKIRA
OOTA KAZUTOSHI
OOTA KAZUTOSHI
Application Number:
JP10985175A
Publication Date:
March 17, 1977
Filing Date:
September 10, 1975
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
E05F15/00; B66B13/24; B66B13/26; E05F15/14; (IPC1-7): B66B13/24; E05F15/14