Button lock

Locks – Special application – For control and machine elements

Reexamination Certificate

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Details

C070S220000, C070S304000, C070S312000

Reexamination Certificate

active

10487200

ABSTRACT:
There is provided a button-operated lock device capable of increasing a setting amount of information in response to operation of a control button, obtaining a large setting amount and a wide-range of selection thereof, enhancing safety performance, simplifying the structure and achieving a small size and a light-weight, thereby achieving a low manufacturing cost, executing such various operations as setting or inputting information and altering thereof correctly, safely, easily and rationally, and preventing decoding or perceiving of preset or inputted information so that any third party is prevented from making a falsification and/or conversion of this device.The button-operated lock comprises a plurality of control buttons (10) axially displacedly arranged and capable of setting or inputting a predetermined information; a control plate (128) for allowing an unlocking procedure at the time of setting or imputing the predetermined information; a driving cam (16) linked to the control plate (128) and capable of being operatively connected to a pair of door handles (4, 5); and a lock element linked to the driving cam (16), wherein a plurality of same or different information can be set or inputted to each of the control buttons (10) and the plurality of same or different information can be set or inputted every time the control button (10) is operated.

REFERENCES:
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patent: 6026665 (2000-02-01), Raybary
patent: 6298698 (2001-10-01), Nakajima et al.
patent: 6334346 (2002-01-01), Wang
patent: 6575004 (2003-06-01), Berton et al.
patent: 6755059 (2004-06-01), Nall
patent: 2004/0261477 (2004-12-01), Wang
patent: 62-54951 (1987-11-01), None

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