JPS6123833Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an alarm clock, particularly a ringing device for a Kohl's alarm clock.

Among the alarm clocks, there is a Kohl's alarm clock in which the sounding device is activated again after a certain period of time, for example, 5 minutes, even if the stop button is pressed. In conventional Coles alarm clocks of this type, a permanent silence switch of a separate configuration was installed in a separate position from the Coles switch. As a result, the configuration became complicated, the number of parts increased, and mistakes were sometimes made when setting or stopping the sound. The present applicant has also proposed, for example, in Japanese Utility Model Application No. 51-98344, etc., in which call and permanent ring stop can be controlled by a single ring stop button. However, in Jitsugan No. 51-98344, etc., when the stop button is simply pressed and released, the call occurs.
By pressing and turning the ring, the sound is permanently silenced, and two operations were required: pressing and turning.

The present invention eliminates the above-mentioned drawbacks of the prior art, and is characterized in that pressing the stop plate (stop button) lightly will cause a call, and pressing it forcefully will cause a permanent stop.

In FIGS. 1 and 2, reference numeral 1 denotes a watch base plate that accommodates and supports a watch wheel train (not shown) and the like. Guide columns 2 are formed on the front surface of the clock base plate 1, and a ring stopper plate 3 is supported by these guide columns so as to be movable in the vertical direction. A stop button (not shown) is attached to a vertically bent portion 4 provided at the upper end of the stop plate 3. The locking lever 5 has a shaft portion 6 at its lower end that is rotatably fitted to the anti-squeal plate 3, and an engagement protrusion 7 at its tip that engages with a heart-shaped step cam 8 provided on the watch base plate 1. engaged. A return spring 11 stretched between a protrusion 9 provided on the locking lever 5 and a protrusion 10 provided on the watch body plate 1 provides an upward return force to the anti-squeal lever 3. In this embodiment, the two-stage position holding means is constituted by a locking lever 5 and a heart-shaped step cam 8, but since this mechanism is well known, detailed explanation will be omitted. Further, the present invention is not particularly limited to the two-stage position holding means.

Further, the upper limit position is regulated by stoppers 13, 13, which are urged upwardly by a spring 12, which is considerably stronger than the return spring 11, and integrally protrude from the watch body plate 1, on the lower right side of the stopper plate 3. A contact plate 14 is provided. An elongated tongue piece 15 is integrally formed at the lower right end of the anti-squeal plate 3, and although this tongue piece 15 cannot be inserted into the through hole 16 of the contact plate 14, the shoulder portion 17 The hole cannot be inserted.

Reference numerals 18 and 19 are spring contact pieces constituting the anti-squeal control switch SW; Then, the spring contact piece 18 is pushed against the lower end surface of the noise stopping plate 3 and is elastically displaced as shown by the chain line in FIG. 2, thereby closing the switch SW.

Next, a driving circuit for driving a sounding device such as a buzzer will be explained with reference to FIG.

In FIG. 3, 20 is a crystal oscillator, 21 is a frequency divider, and signals of several kHz, 8 Hz, and 1 Hz are generated from output terminals a, b, and c, respectively. 22 is a motor that receives a 1 Hz signal from the frequency divider 21 and drives the clock device 23. 24 is a first clock circuit, which is composed of a frequency divider with a frequency division ratio of 1/64, and pulses of 4 Hz and 1/4 Hz are generated at output terminals d and e, respectively. Reference numeral 25 denotes a second clock circuit, which is composed of a frequency divider with a frequency division ratio of 1/64. 26 is a 4-bit shift register, 27,
28...37 is a gate circuit, 38 is an inverter,
39 is a transistor, 40 is a resistor, 41 is a sounding device (buzzer), and 42 is an indicator switch whose opening and closing are controlled by a well-known indicator mechanism provided in the clock device 23.

Next, the operation will be explained. When the switch SW is closed, one input of the gate circuit 28 is held at a low level, and its output is held at a high level. On the other hand, the shift register 26 has a frequency divider 2
Since pulses of 1 to 8 Hz are constantly supplied,
Its outputs _D1 ... _D4 are all held at a high level. Therefore, the output of the gate circuit 29 is held at a low level, and the clock circuits 24 and 25 are connected to the frequency divider 21.
Count the 8Hz pulses from. When the output of the clock circuit 25 goes high, the output of the inverter 38 goes low, closing the gate circuit 37 to block its time input and holding the output of the gate circuit 34 at a high level. On the other hand, shift register 2
Since the output ₂ of 6 is at a low level, the gate circuit 36 is closed.

Therefore, the reference mechanism is set at the desired time, the noise suppressing plate 3 is held in the open position shown by the solid line in FIGS. 1 and 2, and the switch SW is opened. Gate circuit 28
One input of the gate circuit 27 becomes high level, while the gate circuit 27
Since the output of the gate circuit 28 is also at a high level, the output of the gate circuit 28 is at a low level. The output D ₁ of the shift register 26 is output by the 8 Hz pulse from the frequency divider 21...
... _D4 is sequentially inverted to high level, and the gate circuit 36
holds one input at a high level. Therefore, the wake-up signal with a period of 1/4 second from the gate circuit 33 passes through the gate circuits 35 and 36 and is supplied to the transistor 39. Therefore, when the set time comes, the reference switch 42 is closed, and the sound generating device 41 generates an alarm sound at a period of 1/4 second.

Here, a call operation in which the alarm sound is temporarily stopped and then the alarm sound is generated again will be explained. In FIGS. 1 and 2, the anti-squeal plate 3 is pushed back lightly with a force stronger than the spring force of the spring 11 and smaller than the spring force of the spring 12. The anti-squeal plate 3 is lowered to a position where the shoulder portion 17 touches the upper surface of the abutment plate 14, that is, the position indicated by the dashed line in FIG. The spring contact piece 1 is elastically displaced by
Touches 9. In other words, the switch SW is closed.
Closing the switch SW inverts the output of the gate circuit 28 to a high level. At this time, the output _D4 of the shift register 26 is at a high level, so the output of the gate circuit 27 is held at a low level, and the output of the gate circuit 28 is held at the high level. As the output of the gate circuit 28 is inverted and held at a high level, the shift registers D ₁ and D ₂ are sequentially inverted to a high level. At this time, since the output ₃ is held at a high level, the output of the gate circuit 24 is Flip to low level. Therefore, the output of the gate circuit 32 becomes high level, and the clock circuits 24 and 25 are reset. Therefore, both inputs of the gate circuit 34 are at a high level, and its output is at a low level.
5 is closed, the passage of the alarm signal is blocked, and the alarm sound stops. When making a call, the stopper plate 3 is simply pushed lightly, and the shoulder 17 touches the contact plate 14.
Immediately (within 4 seconds in this example), the pressure on the anti-squeal plate 3 is released. The stopper plate 3 is returned to its original position by the return spring 11, and the switch is turned off.
SW is developed. When the switch SW is opened, the output of the gate circuit 28 is inverted to a low level, and the outputs _D1 ...D4 and ₁ ... ₄ of the shift register ₂₆ are again inverted and held at a low level and a high level, respectively. When 256 seconds have elapsed since the reset of the clock circuits 24 and 25, the output of the clock circuit 25 is inverted to high level, the output of the inverter 38 is inverted to low level, closing the gate circuit 37, and the output of the gate circuit 34 is inverted to high level. invert to high level. Therefore, the gate circuit 35 is opened and the alarm signal from the gate circuit 33 is passed through.
Furthermore, the signal passes through the gate circuit 36 and is supplied to the transistor 39, and the sound generating device 41 is operated again to generate an alarm sound. Each time the call stop operation is performed while the indicator switch 42 is closed, the sound generating device 41 is activated again after 256 seconds in the same manner as described above to generate the alarm sound.

When performing permanent noise suppression, the noise suppression plate 3 is pushed strongly, that is, with a force stronger than the spring force of the return spring 11 and the repulsion spring 12. The anti-squeal plate 3 descends against the return spring 11, and the shoulder portion 17 abuts the upper surface of the abutment plate 14, causing the abutment plate 14 to also descend against the repulsion spring 12. By means of the two-stage position holding means consisting of the heart-shaped step cam 8 and the locking lever 5, the sound stopper plate 3 is lowered to a lockable position at the pushed position, and the sound stopper plate 3 remains in the second position even when the pressure is released. It continues to be held in the pushed-in position shown by the two-dot chain line in Figure 2. That is, the spring contact piece 18 remains in contact with the spring contact piece 19, and the switch SW continues to be closed. Therefore, gate circuit 2
8 is held at a high level, and therefore the output _D2 of the shift register 26 is held at a low level, the gate circuit 36 is closed, and the alarm tone is completely stopped. Note that in order to release the holding of the anti-squeal plate 3 in the pushed-in position, the anti-squeal plate 3 may be pushed down slightly against the return spring 11 and the repulsion spring 12, and then released.

Further, in the above embodiment, the call stop and permanent call stop are controlled by one switch SW, but the call switch which opens and closes when the call stop plate 3 descends to the position where it hits the contact plate 14. , and a permanent noise-stopping switch that opens and closes when the noise-stopping plate 3 is locked in the lower position by the second position holding means may be provided separately.

As described above, according to the present invention, it is possible to stop a call ringing and permanently stop ringing by pressing lightly or strongly the only ringing stopper plate, and the operation is simple and easy, and the configuration is simple. The practical effects are great.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a front view of the main part, Figure 2 is Figure 1-
The line sectional view and FIG. 3 are drive circuit diagrams of the sounding device. 3... Squeal stop plate, 5, 6, 7, 8... Two-stage position holding means, 11... Return spring, 12... Repulsion spring, 14... Contact plate, SW... Switch, 24,
25-42...Circuit elements constituting the drive circuit of the sound generating device.

Claims (1)

[Scope of utility model registration request] A noise-stopping plate supported movably in a certain direction and given a return force by a return spring; a two-stage position holding means for holding the noise-stopping plate in a released position and a pushed position; a contact plate with which a part of the anti-squeal plate comes into contact before being held in the push-in position by the two-stage position holding means; a repulsion spring that causes repulsion in a direction opposite to the direction in which the sound stopper is pushed; and when a part of the sound stopper plate is moved to a position where it abuts the abutment plate or a position near the contact plate, and when the sound stopper plate An alarm clock is provided with a switch that is opened and closed by the ring stop plate when the step position holding means holds the alarm clock at the push-in position, and the drive circuit of the sounding device is controlled via the switch. Squealing device.