Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
DOOR LOCK FOR FITTING
PROBLEM TO BE SOLVED: To solve the problem of the invention such as the prevention of shutting-up, with a simple constitution.SOLUTION: A door lock for a fitting comprises a rotary cam internally installed in a lock body so as to cooperate with a handle shaft, a slide plate internally installed in the lock body so that a rear end part engages with a first engaging cam projected in the rotary cam and that a tip part also engages with an inner end part of a latch bolt via a rocking piece and pressure contact means brought into pressure contact with a second engaging cam projected in the rotary cam, and its return force does not sufficiently act since a part of a return spring for constituting the pressure contact means is elastically deformed before a rocking piece is deformed or damaged by an overload applied to a power point for engaging the latch bolt with the rocking piece when retracting the latch bolt in the lock body, on the one hand, the latch bolt is put in a still retracted state in the lock body.
【課題】簡単な構造で、閉じ込め防止という発明の課題を達成すること。【解決手段】錠本体にハンドル軸と共働するように内装された回動カムと、後端部が回動カムに突設した第１係合カムに係合し、一方、先端部が揺動片を介してラッチボルトの内端部に係合するように錠本体に内装されたスライド板と、回動カムに突設した第２係合カムに圧接する圧接手段とを備え、ラッチボルトを前記錠本体内に引っ込める際に、揺動片とラッチボルトが係合する力点に掛かる過負荷により該揺動片が変形或いは破損する前に、圧接手段を構成する復帰バネの一部が弾性変形してその復帰力が十分に作用しない一方、ハンドルの自重により、ラッチボルトは錠本体に引っ込んだままの状態となる建具用ドア錠。【選択図】図２
DOOR LOCK FOR FITTING
PROBLEM TO BE SOLVED: To solve the problem of the invention such as the prevention of shutting-up, with a simple constitution.SOLUTION: A door lock for a fitting comprises a rotary cam internally installed in a lock body so as to cooperate with a handle shaft, a slide plate internally installed in the lock body so that a rear end part engages with a first engaging cam projected in the rotary cam and that a tip part also engages with an inner end part of a latch bolt via a rocking piece and pressure contact means brought into pressure contact with a second engaging cam projected in the rotary cam, and its return force does not sufficiently act since a part of a return spring for constituting the pressure contact means is elastically deformed before a rocking piece is deformed or damaged by an overload applied to a power point for engaging the latch bolt with the rocking piece when retracting the latch bolt in the lock body, on the one hand, the latch bolt is put in a still retracted state in the lock body.
【課題】簡単な構造で、閉じ込め防止という発明の課題を達成すること。【解決手段】錠本体にハンドル軸と共働するように内装された回動カムと、後端部が回動カムに突設した第１係合カムに係合し、一方、先端部が揺動片を介してラッチボルトの内端部に係合するように錠本体に内装されたスライド板と、回動カムに突設した第２係合カムに圧接する圧接手段とを備え、ラッチボルトを前記錠本体内に引っ込める際に、揺動片とラッチボルトが係合する力点に掛かる過負荷により該揺動片が変形或いは破損する前に、圧接手段を構成する復帰バネの一部が弾性変形してその復帰力が十分に作用しない一方、ハンドルの自重により、ラッチボルトは錠本体に引っ込んだままの状態となる建具用ドア錠。【選択図】図２
DOOR LOCK FOR FITTING
建具用ドア錠
NAKAMURA TATSUYA (Autor:in) / HIGASHIYAMA TOSHIHISA (Autor:in)
09.07.2015
Patent
Elektronische Ressource
Japanisch
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