JPH065307B2 - Alarm clock stop mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a stop mechanism for an alarm clock.

[Prior Art] In a conventional sound-locking mechanism of a timepiece, when a sound-stopping lever is pressed to stop sounding, the lever is locked in the pressed state, and when returning to the alarm set state, the user releases the lock by himself / herself. Is configured. Further, since the alarm mechanism is completely different between the 12-hour display type timepiece and the 24-hour display type timepiece, a sound deadening mechanism suitable for each is provided.

[Problem to be Solved] As described above, in the related art, since the user has to unlock the permanent stop ring lever by himself, no alarm sound is generated if he forgets to unlock it. Further, the 12-hour display timepiece and the 24-hour display timepiece are uneconomical because separate sound stop mechanisms must be formed.

Therefore, an object of the present invention is to automatically return the sound-stop switch after a fixed period of time to eliminate the inconvenience caused by forgetting to cancel the sound-stop, and even a 12-hour display type watch can be used for one day like a 24-hour display type watch. It is to provide a stop mechanism that can generate an alarm sound once.

[Means for Solving the Problems] The features of the present invention include a stop ring lever, a snooze lever,
The snooze lever comprises a rack, a pinion, and a squealing switch. The squealing lever is slidably urged in the direction in which the original position is returned by the first return spring. The lever is coaxially and slidably attached to the squealing lever, is urged in a direction to return to the original position by a second return spring, and follows the descent of the squealing lever. The rack is formed on the stop ring lever, and the pinion is capable of meshing with the rack when the stop lever descends. The rotation to be transmitted is interlocked with the rotation transmitted through the slip mechanism, and the engagement with the rack is released after a lapse of a predetermined time of 12 hours or more and less than 24 hours. When it is closed by lowering the stop lever, the alarm is stopped for a predetermined time of 12 hours or more and less than 24 hours, and when it is closed by lowering the snooze lever, the alarm is temporarily stopped. It is where it controls the alarm device.

[Operation] In the sound-stopping mechanism configured as described above, the rack and the pinion mesh with each other by lowering the sound-stopping lever. Since the pinion is interlocked with the rotation of the timepiece mechanical body via the slip mechanism, the rotation of the pinion when the rack meshes with the pinion is slipped by the slip mechanism and is not transmitted to the timepiece mechanical body. Since the rotation of the timepiece mechanism is transmitted to the pinion, the pinion rotates with the lapse of 12 hours or more and less than 24 hours, the rack moves up due to the rotation of the pinion, and finally disengages from the pinion. , The stop lever returns to the original position. In other words, the stop sound is automatically released, and the alarm set state is set.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 3, the sound-stopping lever 2 is attached to the lower plate 1.
Guided by guides 1a ..., it is mounted slidably up and down. A first return spring 3 is hooked on the squeal stop lever 2 between a spring hook 1b provided on the lower plate 1 and a lever-side spring hook 2a. Therefore, the first return spring 3
The squealing lever 2 is biased by the direction of returning to the original position. The stop lever 2 has a delay mechanism A described later.
In order to configure the above, the frame portion 2b is formed in a U shape on the side of the lever.

A snooze lever 4 is coaxially and slidably attached to the sound stop lever 2. The snooze lever 4 is provided with a long hole 4a. The spring hook 1c provided on the lower plate 1 penetrates through the long hole 4a and the lever-side spring hook 4b.
A second return spring 5 is hooked between and. Therefore, the snooze lever 4 is biased by the second return spring 5 in the direction of returning to the original position. Also, snooze lever 4
Is formed with a collar portion 4c so as to be able to follow the lowering of the sound-stopping lever 2, and the collar portion is located in the recess 2c of the sound-stopping lever 2 and is vertically slidable.

When the squealing lever 2 and the snooze lever 4 are lowered, their respective lower end portions 2d and 4d are brought together to open and close the squealing switch 6 provided on the lower plate 1. That is, the movable contact piece 6a of the sound stop switch 6 is normally separated from the fixed contact piece 6b, but is pressed by the lowering of the lower end portions 2d and 4d to elastically contact the fixed contact piece 6b. Also, the stop switch 6
When is closed by lowering the stop lever 2, the alarm is stopped for a predetermined time of 12 hours or more and less than 24 hours by the action of the delay mechanism A described later. The raised position of the stop lever 2 is restricted by the stopper 1d.

Next, the delay mechanism A will be described. As shown in FIGS. 1 and 2, a rack 7 that constitutes the delay mechanism A is formed on the inner surface of the side extending vertically of the frame portion 2b of the sound stop lever 2. A pinion 8 is rotatably supported by the lower plate 1 inside the frame 2d, and can engage with the pinion 8 when the rack 7 descends. The engagement between the pinion 8 and the rack 7 is disengaged after a predetermined time of 12 hours or more and less than 24 hours has elapsed, as will be described later. A transmission wheel 10 is rotatably supported by a shaft 8a of the pinion 8 so that the slip mechanism 9 can continuously disconnect the shaft 8a.

The pinion 8 rotates in association with the rotation of the timepiece mechanical body B. That is, as shown in FIGS. 1 and 2, a coil 12 is wound around a stator 11 of a motor, and a rotor 13 is arranged between magnetic pole portions of this stator.
The drive wheel 14 meshes with the rotor kana, and the second hand wheel 1
5, intermediate wheel 16, minute wheel 17, day wheel 18, hour wheel 1
The rotation is transmitted to 9. The rotation of the day wheel 18 is transmitted via the transmission wheel 20 to the transmission wheel 1 of the delay mechanism A described above.
Rotation is transmitted to 0. An alarm cam 21 and an alarm wheel 22 are located above and below the hour wheel 19. Also, 15a, 17a, 19a and 22a
Are a second hand axis, a minute hand axis, an hour hand axis and an alarm axis, respectively. Reference numeral 23 is a middle plate, and 24 is an upper plate.

When an alarm sound is generated and it is desired to stop the alarm temporarily, only the snooze lever 4 is pushed down and the snooze lever 4 descends against the second return spring 5, and the sound stop switch 6 is closed to stop the alarm sound. . When the push-down is released, the snooze lever 4 is instantly returned to its original position by the second return spring 5. By snooze lever 4,
A so-called snooze alarm can be configured so that an alarm sound is emitted again after a short period of time (3 to 5 minutes) such as a mellow time.

When you want to stop the alarm sound, press down the stop lever 2. When the squealing lever 2 is pushed down against the first return spring 3, the snooze lever 4 is also lowered in conjunction with this, and the squealing switch 6 is closed to stop the alarm sound. When the stop lever 2 descends, the rack 7 moves to the pinion 8
Mesh with and rotate it. The rotation of the pinion 8 is not transmitted to the timepiece mechanical body B by the slip mechanism 9, and an extra load is not applied. Further, the rack 7 is formed on the side in the vertical direction of the frame portion 2b, and this can be slightly bent, so that the rack 7 can be smoothly meshed with the binion 8. Even if the depression of the squealing lever 2 is released, the force of the first return spring 3 is smaller than the frictional force of the slip mechanism 9, so that the lowered position is maintained by the engagement of the rack 7 and the pinion 8. It never returns to its original position. When the pinion 8 rotates in conjunction with the rotation of the timepiece machine body B 12 hours or more after the detent lever 2 is pushed down, the detent lever 2 gradually rises via the rack 7, and finally the rack 7 is pinioned. 8 disengaged from the mesh,
The spring force of the first return spring 3 restores the original position, and at the same time, the movable contact 6a of the deadening switch 6 separates from the fixed contact b and enters an alarm set state.

The time (delay time) from the time when the rack 7 is engaged with the pinion 8 to the time when the rack 7 is disengaged is set so that the reduction ratio between the transmission vehicles is sufficiently large and the delay time is set to 12 hours or more and less than 24 hours in the present invention. Therefore, 12 from the set alarm time
After a lapse of time or more, it returns to the alarm set state. Therefore, in the 12-hour display type timepiece, as in the case of the 24-hour display type timepiece, it is possible to generate an alarm sound only once a day (at 24 hours) and automatically reset.

[Effects] Since the present invention is configured as described above, even if the sound stop lever is once pushed down, it automatically returns after a fixed time, and it is possible to prevent inconvenience caused by forgetting to cancel the stop sound. The delay time from the pressing down of the stop lever to the release is set to 12 hours or more and less than 24 hours, so 1
Even a two-hour display type timepiece is extremely useful, like the 24-hour display type timepiece, since it can generate an alarm sound once a day and can automatically recover from the stop state.
In addition, the structure is simple and cost reduction can be achieved.

[Brief description of drawings]

 FIG. 1 is a front view of an essential part showing an embodiment of the present invention, FIG. 2 is a developed transverse sectional view of the essential part, and FIG. 3 is a sectional view taken along line III-III in FIG. 2 ... stop ring lever, 3 ... first return spring, 4 ... snooze lever, 5 ... second return spring, 6 ... stop switch, 7 ... rack, 8・ ・ ・ Pinion 9 ・ ・ ・ Slip mechanism.

Claims (1)

[Claims] 1. A sound-stopping lever that is slidably urged in a direction to return to its original position by a first return spring, and is coaxially and slidably attached to the sound-stopping lever. A snooze lever which is urged in the direction of returning to the original position by the second return spring and is attached so as to follow the lowering of the squealing lever, and a rack formed on the squealing lever. When the squealing lever descends, it can mesh with the rack, and after the lapse of a predetermined time of 12 hours or more and less than 24 hours after the rotation transmitted from the timepiece mechanical body is interlocked with the rotation through a slip mechanism, When it is closed by disengagement of the pinion and the lowering of the squealing lever, the alarm is stopped for a predetermined time of 12 hours or more and less than 24 hours, and the snooze lever is closed. And a stop switch that controls the alarm device so that the alarm is temporarily stopped when the alarm watch is closed.