Alarm setting and actuating mechanism for analog timepiece

Details Alarm setting and actuating mechanism for analog timepiece Alarm setting and actuating mechanism for analog timepiece

1993-09-22

1994-04-19

Miska, Vit W.

Horology: time measuring systems or devices

Signalling means

Time condition responsive

368253, G04C 2116

Patent

active

053052919

ABSTRACT:
An alarm setting mechanism for an analog timepiece of the type having a minute hand, an hour hand and an alarm device responsive to switch actuations. A minute setting ring and a coaxial hour setting ring are both rotatably mounted in the timepiece and include a minute alarm marker and an hour alarm marker. Both rings have crown gears coupled to a drive pinion arranged to rotate the two rings at a ratio of 12:1 to set the hour and minute markers. This is preferably accomplished using a spur tooth gear on the minute setting ring and a Geneva drive for the hour ring. A first switch is actuated in response to passage of the hour hand contacting the hour marker and a second switch is actuated in response to passage at the minute hand in close proximity to the minute marker. The alarm setting mechanism has a separate crown which is detented in three positions. The crown enables the alarm setting means to function either as a time of day alarm setting using the hour and minute markers with the conventional timepiece dial indicia, or allows the minute hand to function as a count down timer.

REFERENCES:
patent: 1128751 (1915-02-01), Brown
patent: 3596460 (1969-04-01), Wuthrich
patent: 3775967 (1973-12-01), Spadini
patent: 3832843 (1974-09-01), Wuthrich
patent: 4084104 (1978-04-01), Scheer et al.
patent: 4157646 (1979-06-01), Wuthrich
patent: 4652140 (1987-03-01), Nakazawa

Affiliated with

Also associated with

Rating

Alarm setting and actuating mechanism for analog timepiece does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Alarm setting and actuating mechanism for analog timepiece, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alarm setting and actuating mechanism for analog timepiece will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-25760