G - Physics
04
C
58/29
G04C 21/16 (2006.01) G04C 21/20 (2006.01)
Patent
CA 1288957
ABSTRACT An alarm mechanism for an alarm clock has an alarm hand and an hour hand mounted coaxially with respect to each other, and slideably contacting hub portions of the alarm hand and the hour hand are formed with cam grooves and cam pawls respectively. The cam grooves and cam pawls are positioned with the same positional relationship with respect to the hub portions of the alarm hand and hour hand so that at a preselected alarm time, the cam grooves and cam pawls cooperatingly engage one another to thereby actuate a mechanism to sound the alarm of the alarm clock. In attaching the hands to the clock during assembly, it is possible to attach the alarm hand and the hour hand onto respective shafts at any random angular position without having to pay special attention to the respective positional relationships of the two hands. The hands can be formed in multiple parts and moulded together.
525598
Borden Ladner Gervais Llp
Seiko Clock Inc.
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