JPS6041747B2 - time signal clock - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a sounding means that does not have a part that involves mechanical movement to the extent that it can be used to add up the number of tones each time it is produced, like a loudspeaker, but does have a part that involves electrical pulses. The purpose of this invention is to realize a time signal clock that uses the time hand to signal the number of tones corresponding to the indication of the hour hand, and also to realize a time signal clock that will notify the correct number of tones from the next time when the instruction is corrected. be.

Next, the construction and operation of the embodiment shown in the figure will be explained. 1st
In the figure, 1 is a minute hand cam fixed to the minute hand shaft, 2 is an hour hand cam fixed to the hour hand shaft, and the gear device that drives the hour hand shaft from the minute hand shaft is omitted to avoid complicating the diagram.

The main gun 3 and the rack 4 are supported so as to be able to swing concentrically with each other, and the main gun 3 is driven thermally by the minute hand cam 1 to the highest position shown in the figure against its own weight, starting from the minute hand cam 1 just before 0 minutes every hour. It leaves and returns to the lowest position through a certain distance in a heat dissipative manner. rack 4
The main lever 3 moves to the highest position shown in the figure, and as the main lever 3 returns to its original position and is driven in a heat-storing manner against its own weight, it drops in a heat-radiative manner until it hits the outer periphery of the hour hand cam 2, and that stroke is used to signal the next time. Number of sounds n to 1
The outer diameter of the hour hand cam 2 is changed in a stepped spiral manner in proportion to the number (12-n) subtracted from 2 in response to the indication of the hour hand. (The figure shows 12-n=12-1 just before 11:00.
2■ 0) The constant stroke of the main lever 3 is determined to be proportional to number 12. A shielding plate 5 is provided at the tip of the main lever 3, and the rack 4
A row of 11 shielding teeth 6 of a constant width is provided along the displacement direction at regular increments corresponding to the difference in stroke from the highest position to each falling position, and both ends of the row and each shielding tooth are A missing portion is provided between 6. The main shaft 3 and the rack 4, including the shielding plate 5 and the shielding teeth 6, are made of a ferromagnetic material with low magnetic remanence. Shield plate 5 at the lowest position of main gun 3
A normally open reed switch 7 for start control and a durable magnet 8 that closes it by approaching are installed opposite each other at positions that sandwich the reed switch 7, and also sandwich the missing portion at the lower end of the row of closing teeth 6 at the highest position of the rack 4. A normally closed reed switch 9 as a pulse transmitter for setting and a durable magnet 10 that closes the reed switch 9 when approached are installed opposite each other, and each reed switch 7, 9 is connected to a durable magnet 8, respectively.
, 10, it opens only when the shielding plate 5 or the shielding teeth 6 are sandwiched between them.

The distance of the rack 4 when the next time signal number is n is the number (12-
On the other hand, the stroke of the main arm 3 is proportional to 12, so when the main arm 3 rises, the reed switch 7 will first close and then the reed switch 9 will close (12-
n) Open and close twice. When the next time is n=12, the reed switch 9 remains open. Reed switch 7, 9
One of the terminals of is connected to a low potential, and the other terminal is connected to a high potential through a resistor, and is connected to points A and b via integrating circuits 11 and 12, respectively. The potential at point a or b becomes high or low, respectively, corresponding to opening or closing of reed switches 8 and 9, respectively. In the above device, the rack 4 is gradually raised by the minute hand cam 1 via the main shaft 3 between the end of the previous time signal and the start of the current time signal. = 12, a positive direction setting pulse is generated at point b for the number of times that the current time signal tone number n is subtracted from 12, and just before 0 minutes, the main gun 3 returns rapidly and at its lowest position, point a is generated. becomes a high potential.

Except in the case of n=12, the rack 4 returns together, and during this time the reed switch 9 opens a number of times equal to the number of tones for the next time signal subtracted from 12, but because of the integration circuit 12, point b remains at a low potential. Does not generate pulses. The above devices constitute a setting device 1 as a whole. In FIG. 1, 13 is a hexadecimal counter, which does not operate when both points B and c are at a low potential and thus receive a high potential from the NOR gate 14; Each time it receives a positive direction pulse, it receives a negative direction pulse and the reset state is the starting point.
When receiving two negative direction pulses, the first pulse causes the setting state, and the last pulse returns the device to the reset state. When in the reset state, a low potential is transmitted to the NAND gate 15 and when it is in the setting state. Conveys high potential.

The potential that the NAND gate 15 receives from the counter 13;
When at least one of the potentials received from point a is low potential, point d is at high potential, and only when both are high potential, point d is at low potential. Due to the action of the integrating circuit 16, the change in the potential at point d lags behind the change in the output of the NAND gate 15 by more than the duration of each time signal pulse described later. Above 13~
The device including 16 receives (12-n) positive setting pulses at point b when the potential at point a is low and the potential at point c is low, and then when point a becomes high potential, it lowers point d with a slight delay. potential and none,
Subsequently, when point c receives n times of additional pulses in the positive direction (described later) while the potential at point b is low, point d is returned to high potential with a slight delay, and the whole constitutes a counting device (2).

In Figure 1, ■ is a timer device using an oscillator, and point d
While the voltage is at a low potential, a negative time signal pulse with a period of about 1 second and a duration of about 0.3 seconds is generated at point e, and an additional pulse in the positive direction is generated at point c in synchronization with the time signal pulse.

Further, ``■'' is a sounding device that generates electrical oscillation of about 800 Hz only when the potential of point e is low, amplifies it, and emits a time signal sound from a public address system. The time signal clock of this invention has the above-mentioned setting device 11.
Since it has a counting device ■, a time interval device ■, and a sounding device ■, between the end of the previous time report and the start of the current time report, the main
Due to the rise in
2-n) times the first high potential except when n=12.
The counter 13 enters the set state by the second time, and when the main gun 3 returns just before the time signal, point a becomes high potential and a little later, point d
becomes a low potential and the time signal begins.

When the time signal tone is heard n times and there is an additional pulse n times at point c, the counter 13 is reset at the start of the last pulse, but due to the action of the integrating circuit 16, the point d remains unchanged until the end of the last pulse. It maintains a low potential and then returns to a high potential. In this way, the time can be announced with the number of tones corresponding to the indication of the hour hand. In FIG. 1, the integrating circuit 1 of the setting device 1
2, a differentiating circuit 12b is used as shown in FIG.
If the set pulse is displaced by a certain amount of time and then fixed, the set pulse will occur only when the rack 4 is rapidly descending, not while it is gradually rising, so as long as the instruction is corrected in the direction in which the instruction is proceeding, the correct number of tones will be generated from the next time. Become.

Comparing the embodiment of FIG. 2 with the embodiment of FIG. 1, there are differences in the following points in addition to the above.

That is, the outer diameter of the hour hand cam 1 is determined so that the highest positions of the main gun 3 and the rack 4 are higher by an amount proportional to the equation 1, and the rack 4 is
The return stroke is set to be proportional to the number of time-signal sounds immediately after that, n, and the number of shielding teeth 6 of the rack 4 is increased by one, the reed switch 9 is opened a number of times proportional to the falling stroke, and the number of sounds is increased. 12
In this case, the shielding plate 5 is set so that the reed switch 9 closes last and the reed switch 8 opens afterwards. Therefore, only when the main gun 3 quickly returns immediately before the time signal, a number of negative direction pulses equal to the number of sound signals n immediately after the time signal is generated at point b, and then point a becomes high potential. Point a returns to a low potential due to the rise of the main arm 3 after the time signal. Next, 13b of the counting device ■ is a sequential counter, N,
Each time a negative direction pulse is received from the AND gate 15, the point a
The pulses are counted additively or subtractively depending on the low or high potential of A pulse brings it into the setting state, and a final pulse returns it to the reset state. Therefore, if point a becomes high potential after receiving a positive setting pulse n times at point b, point d
becomes a low potential and the time signal starts, and when point c receives an additional pulse in the positive direction n times, the time signal ends in the same manner as in the embodiment shown in FIG. The embodiment shown in FIG. 3 emits a setting pulse when the main gun 3 returns, similar to the embodiment shown in FIG. 2. Compared to the embodiment shown in FIG. The difference is that

That is, the main gun 3 is fixed to the rack 4, the reed switch 7 and durable magnet 8 for start control are eliminated, and the shielding teeth 6 of the rack 4 are fixed.
In place of the reed switch 9 and the durable magnet 10, a sensitive coil 9c with one end connected to a low potential and the other end connected to a point b and a magnetized iron core 10c are used. , the integration circuits 11 and 12 are stopped, the 13-decimal counter 13c is used instead of the 12-decimal counter 13, and the NAN
An inverter 15c was used in place of the D gate 15, the integrating circuit 16 was abolished, and a differentiating circuit 16c was installed between the point c (5N0R gate 14), and the number of time signal tones n was reduced from 13 for the stroke of the rack 4. (13-n), and the time required for return is shorter than the duration of the time signal pulse even at the maximum stroke.Therefore, when the rack 4 returns around 0 minutes every hour, the magnetized iron core A reciprocating pulse corresponding to the number of magnetic teeth 6c passing near point 10a is generated in the sensing coil 9c, and point b becomes high potential (13-n) times, and NOR gate 1
The setting pulse is transmitted to the counter 13c via the counter 13c.

The counter 13c enters the setting state due to the first pulse, and the time interval device (2) starts operating and outputs a time signal pulse, and in synchronization with this, an additional pulse is generated at point c at the end of each time signal pulse by the action of the differentiating circuit 16c. A positive direction pulse is given to the NOR gate 14, and with the nth pulse, the counter 1
3c returns to the reset state, point d becomes a high potential via the inverter 15c, the time interval device 2 stops operating, and the time signal ends. The structure shown in FIG. 3 is simpler than those shown in FIGS. 1 and 2.

In the embodiment shown in FIG. 4, the rack 4 is fixed to the main ship 3 like the one shown in FIG.
3d, the differentiating circuit 16c is directly connected to the counter 13d.
The counter 13d is connected to the sensing coil 9c via the inverter 14d instead of the NOR gate 14, and the spiral direction of the hour hand cam 2 is the same as that in FIG. In between, a counting device calculates the next time signal number n.
It has almost the same effect in that it stores a number having a certain relationship with , and then stops the time signal when there are n time signal pulses.

In the embodiments shown in FIGS. 3 and 4, the spring 17 that urges the rack 4 clockwise causes the rack 4 to fall quickly, and the lower the falling position, the greater the torque that the rack 4 receives, and the lower the falling position, the greater the torque that the rack 4 receives. This is to avoid a situation in which an extra set pulse is generated due to repulsion when colliding with the outer periphery of the

In FIGS. 3 and 4, the switch 18 is connected to the counter 13c.
This is to cut off conduction between the low potential through the diodes 19 and 20 between the part that changes the potential of the control terminal of the control terminal 113d to control activation/deactivation, and the output side of the sensing coil 9c. , counter 13c1 due to conduction.
13d becomes a reset state and the rack 4 falls and is displaced)
18,1
Reference numerals 9 and 20 constitute a reset device upon correction.

Reference numeral 21 denotes an operation handle for correcting the instruction, which is fixed to a correction shaft 23 to which an instruction correction gear 22 is fixed.In the illustrated position, the gear 22 does not mesh with the reverse gear (not shown) and cannot be operated to correct the instruction. , when lowered against the spring 24, the gear 22
The gear meshes with the reverse gear and allows instruction correction operations.

A return lever 27 is provided on the correction shaft 23, which has a fixed collar 25 and a plate-shaped portion 26 held between springs 24, and swings as the operating handle 21 moves up and down. When the operating handle 21 is in the position where the instruction can be corrected, the rack 4 is near the highest position and the switch 18 is
is closed, the reset device at the time of correction becomes active, the rank 4 falls in the process of displacement to the position where the instruction cannot be corrected, and then the switch 18 is opened and the reset device at the time of correction becomes inactive. With this structure, the counters 13c and 13d are always reset even after a reverse instruction correction operation, and the correct number of tones will be reported from the first opportunity thereafter.

According to this invention, it is possible to realize a clock that signals the time with the correct number of tones using a sounding means such as a loudspeaker, and a clock that uses a main or It is easy to implement because it can be realized by using a rack, a minute hand cam, an hour hand cam, etc., and by simply combining conventionally commercially available electronic components.

[Brief explanation of the drawing]

FIGS. 1 to 4 each illustrate the basic structure of an embodiment of the present invention. 1 - Setting device, ■ - Counting device, ■... Time interval device, ■ - Sounding device, 13a, 13b
, 13c, 13d・Counter, 4... (Rack) Reciprocating member, 6, 6c... Characteristic parts (shielding teeth, magnetic teeth),
18, 19, 20... Resetting device during correction, 21...
・Operation handle.

Claims (1)

[Claims] 1 In relation to the indication of the hour hand, after the end of the previous time signal and before the start of the current time signal, a number of set pulses that have a certain relationship with the number of current time signal sounds are emitted, and a start signal is emitted at each time signal. a setting device that emits, and after receiving the above number of setting pulses from the reset state as a starting point, receiving a start signal, and further receiving additional pulses as described below for the number of time signal sounds having the above fixed relationship with the number of setting pulses. A counting device that has a counter that goes into the setting state due to trouble with the initial setting pulse and returns to the reset state due to the last additional pulse, and synchronizes with regular interval time pulses only while the counter of the counting device is in the setting state. or an additional pulse delayed by less than the predetermined interval; and a sounding device that emits a time signal sound each time it receives a time signal pulse.