发明名称 CRIME PREVENTION THUMB-TURN
摘要 PROBLEM TO BE SOLVED: To provide a crime prevention thumb-turn capable of downsizing and reduction of the production cost as a result of a smaller number of components, and of achieving a smaller projection dimension from a door.SOLUTION: The crime prevention thumb-turn includes: a fixed cylinder 45 fixed to an attached object; a core base 31 rotatably supported by the attached object; a thumb-turn body 37 rotatably attached to the fixed cylinder 45; a stopper for blocking rotation of the thumb-turn body 37; a thumb-turn boss 49 which is fixed to the thumb-turn body 37 and has an arm part 51; a button which protrudes from the thumb-turn body 37 and, when pushed in, releases engagement of the stopper; an arcuate protrusion 47 which is projected at the core base 31 and links the core base 31 with the thumb-turn boss 49; a stopper release plate 71 which is formed on the stopper and releases engagement of the stopper when pushed by the arcuate protrusion 47; and an arm part energization spring 53 which is attached to the core base 31 and neutrally holds the arm part 51 in a play space of the arcuate protrusion 47.
申请公布号 JP2014173380(A) 申请公布日期 2014.09.22
申请号 JP20130049178 申请日期 2013.03.12
申请人 MIWA LOCK CO LTD 发明人 KOTOKU MASAHIRO
分类号 E05B13/08 主分类号 E05B13/08
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