Linear sensor

• Main Authors: TAJIMA YUZO, OKAMOTO TOSHIHIRO, ITO OSAMU, SAKAKIBARA NOBORU, SHIBATA TAIZO, TOKI SATOSHI, SUHARA KATSUHIRO
• Format: Patent
• Language: English
• Published: 07.10.2014
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; BASIC ELECTRIC ELEMENTS; CHECKS FOR WINGS; DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; FIXED CONSTRUCTIONS; KEYS; LOCKS; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; RELAYS; SAFES; SELECTORS; TARIFF METERING APPARATUS; TESTING; WINDOW OR DOOR FITTINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING

A linear sensor 21 includes an attachment base 22 attached to a metallic edge of a slide door 2 capable of opening and closing a platform 4, a skin cover part 23 which bulges from the attachment base 22 and has a hollow part 24 in the inside, an insulator 25 which has flexibility and also is embedded in the hollow part 24, and a plate-shaped electrode 26 opposed to the attachment base 22, at least a portion of the electrode being embedded in the insulator 25. In the hollow part 24, a gap 27 is disposed between the electrode 26 and the attachment base 22 and also, the electrode 26 is set in a plus pole and the attachment base 22 is set in a minus pole as the grounding, and proximity and/or contact between a foreign body and the skin cover part 23 is detected based on a change in capacitance between the electrode 26 and the grounding minus pole.