Alarm device for a wristwatch external to the movement
First Claim
1. An alarm device for a watch, especially a wristwatch, with a movement for driving a staff with a hand thereon, a movement case with an open side and a cap covering the open side oF the movement case, said alarm device having a rotatable setting ring associated with cap, spring means disposed between the movement case and the setting ring, one-way clutch means arranged to allow rotation of the setting ring and spring means in one direction and to hold the spring means in tension from the movement case when the setting ring is rotated in the other direction, and release means for holding the spring means in tension and releasing the setting ring at a selectable time.
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Accused Products
Abstract
A wristwatch with an alarm device with a setting ring and a release, as well as with at least one alarm-element that can be spring-driven with a motion relative to another component in order to produce an alarm sound, wherein the alarm device may be used in a conventional watch construction.
8 Citations
6 Claims
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1. An alarm device for a watch, especially a wristwatch, with a movement for driving a staff with a hand thereon, a movement case with an open side and a cap covering the open side oF the movement case, said alarm device having a rotatable setting ring associated with cap, spring means disposed between the movement case and the setting ring, one-way clutch means arranged to allow rotation of the setting ring and spring means in one direction and to hold the spring means in tension from the movement case when the setting ring is rotated in the other direction, and release means for holding the spring means in tension and releasing the setting ring at a selectable time.
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2. The combination according to claim 1, including an alarm element that is driven by motion of the setting ring relative to the movement case.
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3. The combination according to claim 1 wherein the spring means is a coil spring disposed between the movement case and the setting ring and wherein the setting ring has a hooked locking element cooperating with said release means to hold the coil spring in tension.
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4. The combination according to claim 3 wherein said one-way clutch is a clutch band encircling the movement case.
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5. The combination according to claim 3 wherein said one-way clutch is a ratchet arrangement.
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6. The combination according to claim 3 wherein said release means carries a visible indicator and is actuated by said watch hand.
Specification
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- Resources
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Current AssigneeWilhelm Paul Tilse
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Original AssigneeWilhelm Paul Tilse
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InventorsTilse, Wilhelm Paul
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Primary Examiner(s)Miller, Jr., George H.
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Application NumberUS05/509,389Time in Patent Office186 DaysField of Search58/16R,19A,38,57.5,91,152BUS Class Current368/12CPC Class CodesG04C 21/205 by the hand(s) or handlike ...
