JPS625307B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a time telling device for a timepiece.

Conventional analog timepieces have alarm devices that ring every hour on the hour and every 30 minutes, or chime every hour on the hour, followed by a chime every 15 minutes, every 30 minutes, and every 45 minutes. An alarm device that plays a sound has been put into practical use.

In this type of time-telling device, if the time is adjusted in the reverse direction when the counter hook and the lever are engaged in a position where they can operate as a time signal, the engaged state of the counter hook and the lever will be Since the previous state was maintained, the first time signal operation after the time adjustment was the time signal before the time adjustment. This is done by closing a contact device in conjunction with the cam wheel when the time signal operation rotates once per hour, so for example, the hour cam wheel only has a cam protrusion for the hour. If so, adjust the time in the reverse direction and then adjust the time by approximately 1
The first time-reporting operation is performed after a certain period of time, and as a result, there is a problem in that the time-reporting operation immediately after the time adjustment in the reverse direction does not match the displayed time.

The present invention has solved the above-mentioned conventional problems, and its purpose is to provide a device that can quickly release the engaged state of the counter hook and the lever for time-signaling operation.

According to the present invention, when correcting the needle setting, the notification correction lever linked to the needle setting device can be operably operated, and the notification correction lever can be quickly returned to the normal state and the notification correction lever can be automatically released. This provides a device that reliably eliminates the erroneous stroke phenomenon from the first stroke after correcting the needle alignment. Also, in terms of construction, it can be easily manufactured using only a few parts.

In order to achieve the above object, the present invention includes an electrical alarm device, a contact device for electrically controlling the operation of the alarm device, and a contact device that rotates in synchronization with a clock train to generate an alarm at a predetermined alarm time. a time cam wheel that controls the contact device to enable closing operation; a 1-minute cam wheel that rotates in synchronization with the clock train and controls the contact device to enable closing operation every minute; and a 1-minute cam wheel. A one-minute control lever that transmits the contact control force to the movable contact plate of the contact device, and a release device that releases the closed state of the contact device in conjunction with the return operation of the comb, which causes the actuator that can close the contact device to operate. and an alarm correction lever having a degree determining means for holding the contact device in the closed position, and the alarm correction lever is provided with an alarm correction lever having a degree determining means for holding the contact device in the closed position, and when both the hour cam wheel and the minute cam wheel enable the contact device to close, or the alarm correction lever is provided. The electrical warning device is activated when the lever forcibly enables the contact device to close, and the warning correction lever is automatically returned to its normal position by a lever.

Preferred embodiments of the present invention will be described in detail below based on the drawings.

FIG. 1 shows an embodiment of the alarm mechanism according to the present invention, and FIG. 2 shows a perspective view of the same as seen from a different direction.

Although not shown, the electrical alarm device in the embodiment is a well-known mechanical timing device driven by a motor, and a contact device 10 is provided to electrically control the motor operation. are provided with movable contact plates 10a and 10b.
In order to control the opening/closing operation of the contact device 10, an hour cam wheel 12 that rotates in synchronization with the clock wheel train is provided, and the contact driving force of the hour cam wheel 12 is transmitted to the contact device 10 via a pinwheel 14. . hour cam car 1
2 is integrally molded with a minute wheel (not shown), and rotates once per hour together with the minute wheel. On the hour cam wheel 12, cam protrusions 16 corresponding to the hour and cam protrusions 18 corresponding to the half o'clock are formed at intervals of about 180 degrees, allowing the start of the hour and half o'clock alarm operations, respectively. Tips 16a, 18 of both cam projections 16, 18
The positions a are set to correspond to about 10 seconds before the hour and about 10 seconds before half-hour, respectively, so that a time alarm setting operation, which will be described later, is carried out.

The age cam 14 is swingably supported on a shaft 20 fixed to a watch plate, and a protrusion 22 formed at one end is in contact with the cam peripheral surface of the hour cam wheel 12, and the other end is in contact with the cam peripheral surface of the hour cam wheel 12. The formed pins 24 and 26 are respectively engaged with a counting hook 28 of a counting mechanism to be described later and the movable contact plate 10b. This age cam 14 is always elastically biased in the direction of arrow A (counterclockwise), and its protrusion 22 is controlled to swing following the cam peripheral surface of the hour cam wheel 12. When the protrusions 22 and
It is configured to press and move.

As described above, the opening/closing operation of the contact device 10 is controlled at a predetermined alarm time in synchronization with the rotation of the clock train, and in order to obtain an alarm action corresponding to the current alarm time, The mechanism is provided with a counting mechanism. In the illustrated embodiment, the alarm action is performed by controlling the number of rotations of the motor so that the number of strikes is set in accordance with the alarm time. The counter hook 28 is swingably supported on a shaft 30 fixed to a watch plate, and a protrusion 32 formed at one end is connected to a lever 34.
It extends so as to be able to engage with the rack teeth 34a as appropriate. This counter hook 28 is always elastically biased in the direction of arrow B (clockwise) by a spring 35, and is provided with an arcuate pressing portion 36 that can engage with the movable contact plate 10a.

The comb 34 is swingably supported by a shaft 38 fixed to a watch plate, and is always elastically biased in the direction of arrow C (clockwise) by a spring 35. The lever 34 selects the number of revolutions of the motor, that is, the number of strokes per hour, according to the swinging position of its rack teeth 34a.
This swinging position is controlled by a counter cam 40.

The counting cam 40 is integrally molded with an hour hand wheel (not shown), and on its outer periphery there are 12
Twelve stages of cam surfaces 40a are formed corresponding to each hour of the time display. The aforementioned comb 34 is formed with a contact surface 34b that appropriately engages with the cam surface 40a of the multi-take cam 40.

A feed cam 44 is fixed to a rotating shaft 42 of a drive motor (not shown), and a feed pin 46 fixed to the feed cam 44 meshes with the rack teeth 34a of the comb 34, so that the number of spools 28 is increased every rotation of the motor. The projection 32 and the rack teeth 34a of the comb bar 34 are disengaged from each other, and the rack teeth 34a are driven one tooth at a time.

The 1-minute cam wheel 48 is integrally molded with the third wheel (not shown) in order to rotate in synchronization with the clock train, and eight 1-minute cams 50 are formed on its outer periphery. It is configured to rotate one pitch per minute.

In the illustrated embodiment, the cam driving force of the 1-minute cam wheel 48 is transmitted to the contact device 10 via the 1-minute control lever 52, and the 1-minute control lever 52 is pivotable on a pin 54 fixed to the watch plate. An engaging element 56 provided at one end of the cam 50
The actuator 58 provided at the other end is provided so as to be able to engage with the movable contact plate 10b of the contact device 10 as appropriate. The one-minute control lever 52 has a pin 60 installed on the lever 52.
and the fixed pin 62.
4, it is always elastically biased in the direction of arrow D (counterclockwise) and engaged with the one-minute cam wheel 48.

The operation will be explained below with reference to FIG. 1 and FIGS. 3, 4, and 5 showing various operational changes.

FIG. 1 shows the operating state at the end of the hour warning action on the hour, which corresponds to, for example, a time of about 2:05. In this state, the tooth hook 14 has its protrusion 22 facing the valley surface of the hour cam wheel 12, and the counter hook 28 engages the comb 34 at a position where the protrusion 32 abuts one end surface of the rack tooth 34a as shown in the figure. It has stopped. In this state, both contact plates 10a, 10b
are positioned and held by the pressing portion 36 of the counter hook 28 and the pin 26 of the folding hook 14, respectively, and the contact device 10 is in an open state. The alarm device is therefore kept inactive.

FIG. 3 shows a state in which the first stage of the alarm operation is completed on the hour, and the time is approximately 1:59:30. In this state, the cam projection 16 of the hour cam wheel 12
As a result, the counter hook 28 is rotated counterclockwise and the protrusion 32 thereof is moved to a position where it is separated from the lever 34.
As a result, the comb bar 34 rotates clockwise to a position where its abutting surface 34b abuts the cam surface 40a of the counter cam 40 corresponding to 2 o'clock. At this time, both contact plates 10a and 10b of the contact device 10 are the pressing part 36 of the counter hook 28 and the pin 2 of the swing hook 14, respectively.
6, the contact device 10 is pressed and moved to the illustrated position, and the contact device 10 is still maintained in the open state.

The contact plate 10b is pressed and moved by the pin 26 provided on the swallowtail hook 14. Along with this, contact plate 1
The tip of 0b engages the actuator 58 of the one-minute control lever 52, and the force of the pin 26 pressing the contact plate 10b overcomes the biasing force of the spring 64, causing it to swing slightly in the direction of arrow D'. Get over it.

Of course, the one-minute control lever 52 is disengaged from the contact plate 10b and returned to the state where it is again engaged with the one-minute cam wheel 48.

FIG. 4 shows the completion of setting the second stage of the time warning action on the hour, which corresponds to a time of approximately 1:59:50. In this state, the age cam 14 is rotated by the rotation of the hour cam wheel 12 so that the tip end 1 of the cam protrusion 16
6a and rotate counterclockwise. As a result, the pressing of the counter hook 28 by the pin 24 is released, the counter hook 28 rotates clockwise, and its protrusion 32 meshes with the tooth corresponding to 2 o'clock of the rack teeth 34a of the comb 34. At the same time, the pressing and holding of both contact plates 10a and 10b by the pressing part 36 of the counter hook 28 and the pin 26 of the folding hook 14 is released.
Therefore, the contact plate 10a rotates clockwise from FIG. 3, but the tip of the contact plate 10b engages with the actuator 58 of the one-minute control lever 52 and is held pressed at the position shown in the figure. Therefore, even in FIG. 4, the closing operation of the contact device 10 is not performed.

FIG. 5 shows a state in which the time-telling action is started on the hour, and shows the time corresponding to 2:00:00. In this state, the 1-minute cam 50 of the 1-minute cam wheel 48, which is set in synchronization with the control position of the second hand, comes into contact with the engager 56 of the 1-minute control lever 52, causing the lever 5
2 clockwise, and as a result, the lever 52
The actuator 58 is detached from the contact plate 10b, and the contact plate 10b is rotated back to the position where it comes into contact with the contact plate 10a due to its elastic action, so that the contact device 10 can be closed.

When the contact device 10 is closed, the drive motor of the electric alarm device rotates to perform a timing operation, and at this time, the feed cam 44 interlocked with the motor rotates to
The lock teeth 34a of the comb bar 34 are fed and driven every time the driving operation is performed. Therefore, after completing the two time striking actions,
The protrusion 32 of the counter hook 28 separates from the lever 34 and returns to the state shown in FIG. 1, and both contacts 10a, 10
Open b. Therefore, the timing action is performed the number of times determined by the position of the counting cam 40 corresponding to the designated time at each notification time.

As described above, since the contact device 10 is controlled to be closed by the one-minute cam wheel 48, an extremely accurate time-telling action is obtained.

FIG. 6 shows the completed setting of the second stage of the alarm function at half o'clock, and shows the time corresponding to about 1:29:30. FIG. 6 is almost the same as the hourly state shown in FIG. 3, but the cam protrusion 1 of the hour cam wheel 12 is
8 has a lower cam height than the cam protrusion 16 at the hour, and as a result, it is understood that the amount of movement of the counter hook 28 rotated by the age hook 14 is small. That is, at half o'clock, the projection 32 of the counter hook 28 does not completely release the comb 34, but releases the comb 34 to the position where the projection 32 meshes with the tooth at the lower end of the lock tooth 34a. Therefore, regardless of the indicated time, one hour striking action is always obtained, and a half-hour striking action is performed.

Other than that, for example, the operation for generating the time signal sound is the same as the time notification operation at the hour shown in FIG. 1 and FIGS. 3 to 5 above.

It should be noted that the time reporting correction lever 70 does not have any effect during normal time reporting operation.

Next, a novel configuration according to the present invention will be explained. In addition, in the embodiment of the present invention, the above-mentioned figures 1 to 6
The same configurations as those in the figure are given the same reference numerals, and the description thereof will be omitted.

7 to 10 show the characteristic notification time adjustment operation states of the present invention. Notification correction lever 70
is provided with an initial switch 76 that sets the notification correction by operating in conjunction with the needle alignment operation, and the tip of the switch 76 fixes the entire notification correction lever 70 in an appropriate position. Locking portions 78a and 78b having an elastic structure are provided. Further, an actuator 72 that engages with the movable contact plate 10a of the contact device 10 to turn the contact function N, and a release element 74 that automatically performs a release operation by the swinging movement of the comb bar 34 extend in three radial directions and are integrated. Molded. The notification correction lever 70 is pivotally supported on a shaft 80 fixed to a watch plate.

The regulating body 102 includes an actuating portion 106 having one end engaged with the needle setting pinion 116 provided on the needle setting 100, and a pressing surface 104 pressing the switch 76 of the notification correction lever 70 at the other end. In conjunction with the setting operation, the transmission gear 114 and needle setting pinion 1 are connected by needle setting.
16 are engaged with each other, and the regulating body 102 is operated. Set the notification correction lever 70. Note that the actuating portion 106 and the regulating body 102 are formed in a shape that can be elastically biased. The regulating body 102 is swingably supported by a shaft 112 fixed to a watch plate, and is elastically biased in the direction of arrow E (counterclockwise) by a return spring 108.

The above is the configuration, and by adding several parts to the above-mentioned time notification mechanism, it has become possible to reliably eliminate the phenomenon of mishits.

Next, the notification time adjustment operation will be explained with reference to FIG. 7 and FIGS. 8, 9, and 10 showing changes in each operation. 7th
The figure shows a state in which the power supply is inserted, and the time indicated by the hands is currently 5:25. This state is similar to the time notification mechanism (number counter related) shown in FIG.
is brought into contact with the appropriate position of the latch teeth 34a of the comb 34 and is locked. Further, both contact plates 10a and 10b are the pressing part 36 of the number hook 28 and the age hook 1, respectively.
The contact device 10 is held in position by the pin 26 of No. 4, and is in an open state. The alarm device is therefore kept inactive. However, if the counting relationship of the hourly device corresponds to the hourly indicating position at 3 o'clock before the power is inserted, that is, the protrusion 22 of the age cam 14 faces the cam protrusion 16 of the hour cam wheel 12, The contact surface 34b of 34 is the number cam 4
It engages at the position corresponding to 0 and 3 o'clock, and the counter kama 28
With the protrusion 32 locked in the proper position corresponding to 3 o'clock on the rack tooth 34a of the comb 34, the hand is corrected in the reverse direction to set it at 5:25. The rotation of the needle setting pinion 116 is controlled by the transmission gear 1.
14 to the date rear gear (not shown), and the minute hand pinion and clock wheel that mesh with the date rear gear are rotated to adjust the time. The minute wheel does not rotate because the minute hand pinion is slip-coupled to the integrally molded minute hand pipe.
The one-minute cam wheel 48, which is integrally molded on the third wheel and meshes with the minute hand wheel, does not rotate. Therefore, by correcting the hand alignment in the reverse direction, the hour cam wheel 12 and the counter cam 40 are rotated and take the appropriate positions, but the projection 22 of the age cam 14 that engages with the hour cam wheel 12 is Since it is deviated from the peripheral surface on a plane, the counting hook 28 is not swung by the swallow hook 14. Therefore, by adjusting the time in the reverse direction, the counting cam 40 and the lever 3
The engagement position of No. 4 is located at 5:25, but the engagement state of the counter hook 28 and the comb bar 34 is at the 3 o'clock position. When performing reverse correction operation, use the number 2 kettles.
8 and agekama 14 do not swing, contact device 1
0 is not closed, and the one-minute control lever 52 also does not swing, so the contact plate 10b does not return to the position indicated by the two-dot chain line.

When the time passes in this state and corresponds to 5:30, the contact device, which is kept inactive, switches the 1-minute cam wheel 48, which is set in synchronization with the control position of the seconds hand, to the 1-minute cam wheel 48.
The minute cam 50 comes into contact with the engaging element 56 of the one-minute control lever 52, rotating the control lever 52 clockwise, and the engaging element 58 and the contact plate 10b are disengaged to close the contact. After that, the well-known timing action was performed.3
Instead of emitting a time signal sound to show the user that it was 5:30, it instead informed the user that it was 3:00. That is, an erroneous hit phenomenon occurs.

FIG. 8 shows a state in which the needle setting operation has been performed in order to correct the above-mentioned counting relationship. When the needle setter 100 is moved in the direction of arrow F, the actuating portion 106 of the regulating body 102 engaged with the needle setter pinion 116 moves toward the shaft 1.
Rotate around 12. Accordingly, the pressing surface 104 of the regulating body 102 presses and rotates the switch 76 of the notification correction lever 70, and the locking part 78b is released from the shaft 90 fixed to the watch plate, and the locking part 78a is released. is locked. Further, as the above-mentioned notification correction lever 70 rotates, the actuator 72 and the release element 74 move relative to each other. That is, the actuator 72 rotates while engaging with the contact plate 10a of the contact device 10, and is further held in a position where both the contact plates 10a, 10b are closed. At this time, the swing pin 14 is swung by the contact plate 10a, so that the protrusion 22 can move from the plane of the hour cam wheel 12 to the circumferential surface. Contact device 10
Upon closing, the drive motor of a well-known electric alarm device (not shown) starts, and a time-striking operation is performed, producing a time-signal sound such as a bell.

FIG. 9 shows that when the contact device 10 is closed from the state shown in FIG. 8, the drive motor of the electric alarm device starts, a timing operation is performed, and the feed cam 44 interlocked with the motor rotates. This shows the state just before the third striking action ends.

As the feed cam 44 rotates, the feed pin 46 of the feed cam 44 feeds the rack tooth 34a of the comb 34, and the cam protrusion 32 of the counter hook 28 and the rack tooth 34
The engagement of a is released. Accordingly, the end portion 34c of the comb 34 engages with the release element 74 of the notification correction lever 70, and rotates the notification correction lever 70 in the direction of arrow H (clockwise). In the notification correction lever 70, the distal end locking portion 78a of the switch 76 is disengaged from the shaft 90, and is locked to the locking portion 78b. That is, the notification correction lever 70 is automatically corrected by the lever 34. As a result, the protrusion 3 of the kutori kama 28
2 is disengaged from the lock teeth 34a of the comb 34, and both contact plates 10a and 10b are released and return to the non-operating state.

As a result, the counting relationship between the lever 34 and the counting hook 28 is released from the time notification mechanism setting relationship at 3:00, and the system returns to the state of waiting for the next operation. Therefore, it is possible to make corrections in a short period of time, within several tens of seconds, and it is possible to accurately report the time from the first time after setting, thereby preventing the occurrence of misprints.

Figure 10 corresponds to the time of around 5:29:30,
The completion state of the second stage of the alarm action at half an hour (every 30 minutes) is shown. Figure 10 shows the 6th
The situation is almost the same as the counting relationship shown in the figure, and a half-hour (one) time striking action corresponding to the designated time of 5:30 is obtained.

As is clear from the above explanation, according to the present invention, incorrect strokes can be corrected in an extremely short period of time (within about 10 seconds) and the normal state can be restored. It has become possible to eliminate the erroneous typing phenomenon that occurred during operation. The present invention is easy to operate because the notification correction lever is interlocked as a needle alignment device, and the closed state of the contact device by the notification correction lever can be automatically released in conjunction with the return operation of the comb.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the main parts showing an embodiment of the alarm mechanism of the present invention, Fig. 2 is a perspective view of the main parts in a different direction from Fig. 1, and Figs. 3, 4, 5, and 6 show the alarm operation. FIGS. 7, 8, 9, and 10 are plan views showing the operating state of the notification correction section according to the present invention. FIG. 70... Notification correction lever, 72... Actuator, 7
4... Release element, 76... Switch element, 78a, 78b
... Locking portion, 102 ... Regulating body, 104 ... Pressing surface.

Claims (1)

[Claims] 1. An electrical alarm device, a contact device that electrically controls the operation of the alarm device, and a control device that rotates in synchronization with a clock train so that the contact device can be closed at a predetermined alarm time. a 1-minute cam wheel that rotates synchronously with the clock wheel train to control the contact device to close every minute, and a movable contact plate of the contact device that transfers the contact control force of the 1-minute cam wheel. 1-minute control lever that transmits the signal to the contact device, an actuator that can close the contact device, a release device that releases the closed state of the contact device in conjunction with the return operation of the comb, and a 1-minute control lever that allows the contact device to be held in the closed position. and a notification correction lever having a determining means, when both the hour cam wheel and the one-minute cam wheel enable the contact device to close, or the notification correction lever forcibly closes the contact device. 1. A time-telling mechanism for a watch, characterized in that an electric alarm device is activated when the alarm is enabled, and an alarm correction lever is automatically returned to its normal position with a lever.