......DE....FRGB..................................R0631029EUROPEAN PATENT APPLICATIONA319950830EP94108480.819940601enenen29754/9319930603JP29755/9319930603JP19950830199535199412281994525 5E 05B 17/18 A 5E 05B 17/22 B 5E 05B 45/10 BdeMit Schlüssel zu bedienendes ZylinderschlossenKey-operated cylinder lockfrSerrure cylindrique actionnée par une clé1KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO00557700EP 10404-013/iwTOKAI RIKA DENKI SEISAKUSHO, KABUSHIKI KAISHARIKA DENKI SEISAKUSHO, KABUSHIKI KAISHA TOKAISEISAKUSHO, KABUSHIKI KAISHA TOKAI RIKA DENKI1, Aza Noda Oaza Toyota Oguchi-choNiwa-gun Aichi-kenJPAoki, Hisashi, c/o K. K. Tokai Rika DenkiSeisakusho, 1, Aza Noda, Oaza Toyota, Oguchi-choNiwa-gun, AichiJPKokubu, Sadao, c/o K. K. Tokai Rika DenkiSeisakusho, 1, Aza Noda, Oaza Toyota, Oguchi-choNiwa-gun, AichiJPMizuno, Takashi, c/o K. K. Tokai Rika DenkiSeisakusho, 1, Aza Noda, Oaza Toyota, Oguchi-choNiwa-gun, AichiJPMizuno, Yoshiyuki, c/o K. K. Tokai Rika DenkiSeisakusho, 1, Aza Noda, Oaza Toyota, Oguchi-choNiwa-gun, AichiJPGrünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät00100721Maximilianstrasse 5880538 MünchenDEDEFRGB19950830199535

A key-operated cylinder lock includes a rotor casing (2); a rotor (3) having a key inserting channel (3a), which is
rotatably arranged in the rotor casing (2); a permanent magnet (6) provided in the rotor (3) near the key inserting channel (3a); a magnetic detecting element (7) provided in the rotor casing (2) in such a manner that the magnetic flux of the permanent magnet (6) acts on the magnetic detecting element (7); a magnetic shutter (4) swingably provided in the rotor (3) in such a manner as to open and close the key inserting channel (3a), the shutter (4) being made of a magnetic material and adapted to interrupt the application of the magnetic flux of the permanent magnet (6) to the magnet detecting element (7) when the shutter (4) is swung to a channel closing position to close the key inserting channel (3a) by a key (30) inserted into the key inserting channel (3a); and a spring member (20) provided in the rotor (3), which is adapted to urge the shutter (4) towards the channel closing position.