KEY AND LOCKING DEVICE

PROBLEM TO BE SOLVED: To provide a key and a locking device which secure a sufficient number of key pattern combinations without changing conventional processing accuracy of an inner groove.SOLUTION: A cut out portion (10) is formed at a part (P1) of an inner groove (13) of a key plate (1) so as not...

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1. Verfasser:	HIGUCHI REIJI
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR FIXED CONSTRUCTIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HANDCUFFS KEYS LOCKS SAFES TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS WINDOW OR DOOR FITTINGS
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creator	HIGUCHI REIJI
description	PROBLEM TO BE SOLVED: To provide a key and a locking device which secure a sufficient number of key pattern combinations without changing conventional processing accuracy of an inner groove.SOLUTION: A cut out portion (10) is formed at a part (P1) of an inner groove (13) of a key plate (1) so as not to engage with a tumbler (201) of a rotor (21) of a cylinder lock (2). A tumbler provided at a position corresponding to the cut out portion recedes from an outer periphery of the rotor without engaging with the inner groove of the inserted key plate. If an incorrect key without the cut out portion is inserted, the tumbler engages with the inner groove and the rotor is locked. Consequently, presence or absence of the cut out portion can be used as key pattern combinations which does not cause malfunction among them.
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A tumbler provided at a position corresponding to the cut out portion recedes from an outer periphery of the rotor without engaging with the inner groove of the inserted key plate. If an incorrect key without the cut out portion is inserted, the tumbler engages with the inner groove and the rotor is locked. Consequently, presence or absence of the cut out portion can be used as key pattern combinations which does not cause malfunction among them.</description><language>eng</language><subject>ACCESSORIES THEREFOR ; FIXED CONSTRUCTIONS ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; HANDCUFFS ; KEYS ; LOCKS ; SAFES ; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ; TECHNICAL SUBJECTS COVERED BY FORMER USPC ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; WINDOW OR DOOR FITTINGS</subject><creationdate>2011</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20111222&DB=EPODOC&CC=JP&NR=2011256634A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76302</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20111222&DB=EPODOC&CC=JP&NR=2011256634A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HIGUCHI REIJI</creatorcontrib><title>KEY AND LOCKING DEVICE</title><description>PROBLEM TO BE SOLVED: To provide a key and a locking device which secure a sufficient number of key pattern combinations without changing conventional processing accuracy of an inner groove.SOLUTION: A cut out portion (10) is formed at a part (P1) of an inner groove (13) of a key plate (1) so as not to engage with a tumbler (201) of a rotor (21) of a cylinder lock (2). A tumbler provided at a position corresponding to the cut out portion recedes from an outer periphery of the rotor without engaging with the inner groove of the inserted key plate. If an incorrect key without the cut out portion is inserted, the tumbler engages with the inner groove and the rotor is locked. Consequently, presence or absence of the cut out portion can be used as key pattern combinations which does not cause malfunction among them.</description><subject>ACCESSORIES THEREFOR</subject><subject>FIXED CONSTRUCTIONS</subject><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</subject><subject>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</subject><subject>HANDCUFFS</subject><subject>KEYS</subject><subject>LOCKS</subject><subject>SAFES</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><subject>WINDOW OR DOOR FITTINGS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2011</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBDzdo1UcPRzUfDxd_b29HNXcHEN83R25WFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgaGhkamZmbGJo7GRCkCANCOH0A</recordid><startdate>20111222</startdate><enddate>20111222</enddate><creator>HIGUCHI REIJI</creator><scope>EVB</scope></search><sort><creationdate>20111222</creationdate><title>KEY AND LOCKING DEVICE</title><author>HIGUCHI REIJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2011256634A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2011</creationdate><topic>ACCESSORIES THEREFOR</topic><topic>FIXED CONSTRUCTIONS</topic><topic>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</topic><topic>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</topic><topic>HANDCUFFS</topic><topic>KEYS</topic><topic>LOCKS</topic><topic>SAFES</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</topic><topic>WINDOW OR DOOR FITTINGS</topic><toplevel>online_resources</toplevel><creatorcontrib>HIGUCHI REIJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HIGUCHI REIJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>KEY AND LOCKING DEVICE</title><date>2011-12-22</date><risdate>2011</risdate><abstract>PROBLEM TO BE SOLVED: To provide a key and a locking device which secure a sufficient number of key pattern combinations without changing conventional processing accuracy of an inner groove.SOLUTION: A cut out portion (10) is formed at a part (P1) of an inner groove (13) of a key plate (1) so as not to engage with a tumbler (201) of a rotor (21) of a cylinder lock (2). A tumbler provided at a position corresponding to the cut out portion recedes from an outer periphery of the rotor without engaging with the inner groove of the inserted key plate. If an incorrect key without the cut out portion is inserted, the tumbler engages with the inner groove and the rotor is locked. Consequently, presence or absence of the cut out portion can be used as key pattern combinations which does not cause malfunction among them.</abstract><oa>free_for_read</oa></addata></record>
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subjects	ACCESSORIES THEREFOR FIXED CONSTRUCTIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HANDCUFFS KEYS LOCKS SAFES TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS WINDOW OR DOOR FITTINGS
title	KEY AND LOCKING DEVICE
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