JPS6239949B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a decorative pendulum device, and particularly to an improvement in the drive mechanism of its pendulum body.

2. Description of the Related Art In recent electronically driven watches using crystal oscillators and the like, decorative pendulum devices that are swung by the driving force of the watch body have been widely put into practical use for decorative purposes.

In this type of decorative pendulum device, the pendulum body is swingably supported by a swing drive board provided on the watch body, and normally, the knife edge of the swing rod body is supported in a V-groove of the swing drive board. It consists of a structure. A pendulum is locked to the lower end of the swing rod body, and the swing rod body and The swinging motion of the pendulum can be sustained.

When the watch body is set vertically correctly, a normal electromagnetic driving force acts between the magnet fixed to the swing rod body and the drive coil provided on the swing drive board, so the swing rod The body is always driven at the center of the swing. Therefore, under normal conditions, good swinging motion of the swinging rod body and pendulum can be obtained.

However, in such conventional devices, when the watch body is set at an angle, the movement of the movement rod is not performed at the center of the movement, resulting in uneven movement of the movement rod or the drive itself. There may be cases where this is not possible. In other words, when the watch body is set at an angle with respect to the vertical line, the swing drive board also tilts accordingly, causing the interaction between the magnet fixed to the swing rod body and the drive coil provided on the swing drive board. Since a normal electromagnetic driving force does not act between them, the swinging rod body is not driven at the center of swinging, resulting in irregular swinging or inability to swing.

In addition, in conventional devices, if the voltage of the drive power supply that supplies current to the drive coil provided on the swing drive board fluctuates, or the length of the pendulum fixed to the lower end of the swing rod body does not match the device. Otherwise, the swinging rod body would swing abnormally, resulting in a disadvantage that the desired swing angle of the swinging rod body could not be obtained.

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to always be able to perform a good swinging motion of the swinging rod body regardless of the set angle of the watch body, and to further improve the swinging movement of the swinging rod body. It is an object of the present invention to provide an improved decorative pendulum device capable of regulating the swing angle to a predetermined value or less.

In order to achieve the above object, the present invention includes a vibrating rod body that is swingably supported with respect to a watch body, and an electromagnetic coupling with a magnet or a drive coil provided on the vibrating rod body. A swing drive board that is provided with a drive coil or magnet that generates a driving force and is suspended from the watch body so that its center of gravity is always oriented vertically with respect to the watch body, and a swing angle of the swing rod body relative to the swing drive board. The magnet or drive coil in the swing rod body and the swing drive board are arranged at a distance in the direction of gravity from the respective swing centers, and the watch body is in a vertical position. , the respective swing centers of the swing rod body and the swing driving board are located on the vertical line, and the swing rod body is always driven at the swing center, and the swing angle is regulated to a predetermined value or less. It is characterized by

Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

1 and 2 show a first preferred embodiment of a decorative pendulum device to which the present invention is applied.

In FIGS. 1 and 2, a swing rod body 12 is swingably supported on a swing drive board 10, and a knife edge 12a of the swing rod body 12 is supported in a V-groove 10a of the swing drive board 10. A pendulum (not shown) is locked to the lower end of the swing rod body 12.
Further, a magnet 14 is fixed to the swing rod body 12, and a drive coil 1 is attached to the swing drive board 10, which electromagnetically couples with the magnet 14 to generate a swing driving force in the swing rod body 12.
6 is provided, and the magnet 14 and the drive coil 1
The swing motion of the swing rod body 12 can be maintained by the electromagnetic driving force between the swing rod body 12 and the swing rod body 6.

A characteristic feature of the present invention is that the swing drive board 10 is suspended and supported by the watch body 18 so that its center of gravity always faces in the vertical direction, and the swing drive board 10 is The magnet 14 or drive coil 16 is arranged at a distance from the respective swing centers in the gravity direction, and when the watch body 18 is in a vertical position, the swing rod body 12 and the swing drive board 10 are The center of each swing is located on the vertical line. For this reason, in the first embodiment, the V-groove 1 of the driving board 10 is placed on the knife edge 18a of the watch body 18.
0b is swingably supported.

Furthermore, a characteristic feature of the present invention is that a swing angle regulating section is provided to regulate the swing angle of the swing rod body 12 with respect to the swing drive board 10. For this reason, in the first embodiment, Swing angle regulating parts 24a, 2 that contact the swing angle regulating parts 22a, 22b of the swing drive board 10 to regulate the swing angle of the swing rod body 12.
4b is provided on the swinging rod body 12.

The first embodiment of the present invention has the above configuration, and its operation will be explained below based on FIGS. 3, 4, and 5.

3 and 4 show the watch body 18 properly set vertically.

In FIG. 3, since the center of gravity of the swing drive board 10 is oriented in the vertical direction, there is a normal electromagnetic driving force between the magnet 14 fixed to the swing rod body 12 and the drive coil 16 provided on the swing drive board 10. acts.
Therefore, as shown by the chain line in the figure, the swinging rod body 12 is always driven at the center of swing, and a good swinging motion of the swinging rod body 12 and the pendulum can be obtained.

Next, in FIG. 4, the swing angle regulating section 22a of the swing driving board 10 and the swing angle regulating section 24a of the swing rod body 12 are shown.
Since they are in contact with each other, the swing angle of the swing rod body 12 can be restricted to a predetermined value or less.

FIG. 5 shows a state in which the watch body 18 is tilted and set.

In FIG. 5, when the watch main body 18 is set at an angle with respect to the vertical line, in the conventional device, the swing driving board 10 also follows the tilt, but in the first embodiment of the present invention, the watch body 18 is tilted relative to the vertical line. V groove 10 of drive board 10 swings to knife edge 18a of main body 18
b is swingably supported, so that the center of gravity of the swing drive board 10 is oriented in the vertical direction, as shown in the figure. Therefore, since a normal electromagnetic driving force acts between the magnet 14 fixed to the swing rod body 12 and the drive coil 16 provided on the swing drive board 10, the drive of the swing rod body 12 is always at the swing center. This allows a good swinging motion of the swinging rod body 12 and pendulum to be obtained.

Furthermore, in FIG. 5, since the center of gravity of the swing drive board 10 is directed in the vertical direction, the swing drive board 10
The swing angle regulating portions 22a, 22b of the swing rod body 12 and the swing angle regulating portions 24a, 24b of the swing rod body 12 can perform good swing angle regulation of the swing rod body 12.
It is possible to regulate the vibration angle to a predetermined value or less.

As described above, according to the first embodiment of the present invention,
Even when the watch main body 18 is set at an angle, the center of gravity of the swing drive board 10 is oriented vertically, so that the swing rod body 12 is always driven at the center of swing, resulting in a good swing rod body 12. The swinging motion of the pendulum can be obtained, and furthermore, the swinging angle of the swinging rod body 12 can be regulated to a predetermined value or less.

A second embodiment of the present invention is shown in FIG. 6, in which a pendulum 20 is shown locked to the lower end of the swinging rod body 12.

Also in the second embodiment, the same effects as in the first embodiment can be obtained. That is, the seventh
As shown in the figure, even when the watch body 18 is set at an angle, the center of gravity of the swing driving board 10 is oriented in the vertical direction, so that the swing rod body 12 is always driven at the center of swing. , good swinging rod body 12
The swinging motion of the pendulum 20 can be obtained, and furthermore, the swinging angle of the swinging rod body 12 can be regulated to a predetermined value or less. Further, in the second embodiment, since the watch body 18, swing drive board 10, and swing rod body 12 do not overlap, the device has the advantage of being thinner.

FIG. 8 shows a third embodiment of the present invention, in which a swing rod body 12 is swingably supported on a watch body (not shown), and a knife edge 18a of the watch body is supported.
The V-groove 12b of the swinging rod body 12 is supported. Further, a pendulum 20 is locked to the lower end of the swing rod body 12. Also in the third embodiment, the first
Similar to the embodiment, the swing drive board 10 is suspended from the watch body so that its center of gravity always faces in the vertical direction.
In the embodiment, the knife edge 18 of the watch body
The V-groove 10b of the swing drive board 10 is swingably supported on the swing drive board 10b. Furthermore, in the third embodiment, similarly to the first embodiment, swing angle regulating parts 24a and 24b contact the swing angle regulating parts 22a and 22b of the swing driving board 10 to regulate the swing angle of the swing rod body 12. is provided on the swinging rod body 12.

Therefore, the same effects as in the first embodiment can be obtained in the third embodiment as well.

FIG. 9 shows a fourth embodiment of the present invention, and FIG. 10 shows a cross section of FIG. 9.

In the third embodiment shown in FIG. 8, the swing rod body 12 and the swing drive board 10 are swingably supported on the watch body by separate knife edges 18a and 18b, but in the fourth embodiment shown in FIG. In this case, the swing rod body 12 and the swing drive board 10 are swingably supported on the watch body by one knife edge 18a. Also, in the fourth embodiment, although not shown, a swing angle regulating section is provided.
Therefore, the same effects as in the first embodiment can be obtained in the fourth embodiment as well.

FIG. 11 shows a fifth embodiment of the present invention, in which the swing drive board 10 includes a swing rod body (not shown).
is swingably supported, and the swing drive board 10
A knife edge 12a of the swing rod body is supported in a circular opening 10d formed in the swing rod. In the fifth embodiment, as in the first embodiment, the swing drive board 10 is suspended from the watch body so that its center of gravity always faces in the vertical direction. In the fifth embodiment, the circular support frame 10c of the swing drive board 10 is swingably supported on the support shaft 18c of the watch body. Also, in the fifth embodiment, although not shown, a swing angle regulating section is provided.

Therefore, in the fifth embodiment as well, the same effects as in the first embodiment can be obtained.

As explained above, according to the decorative pendulum device of the present invention, the swing drive board is suspended from the watch body so that its center of gravity always faces in the vertical direction, and the swing rod body and the swing drive The magnets or drive coils on the board are arranged at a distance in the gravity direction from their respective swing centers, and when the watch body is in a vertical position, the swing rod body and the swing drive board each swing. The center is located on the vertical line. Therefore, irrespective of the set angle of the watch body, the swinging rod body is always driven at the center of swing, and a good swinging motion of the swinging rod body can always be obtained.
Furthermore, since the swing angle regulating section that regulates the swing angle of the swing rod body with respect to the swing drive board is provided, the swing angle of the swing rod body can be restricted to a predetermined value or less.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams of the first embodiment of the present invention, Figures 3, 4, and 5 are explanatory diagrams of the operation of the first embodiment of the present invention, and Figure 6 is an explanatory diagram of the second embodiment of the present invention. Figure, 7th
8 is an explanatory diagram of the operation of the second embodiment of the present invention, FIG. 8 is an explanatory diagram of the third embodiment of the present invention, FIG. 9 is an explanatory diagram of the fourth embodiment of the present invention, and FIG. Figure -
The sectional view, FIG. 11, is an explanatory diagram of a fifth embodiment of the present invention. Identical members in each figure are given the same reference numerals, and 10...
Swing drive board, 12... Swing rod body, 14... Magnet,
16... Drive coil, 18... Watch body, 22
a, 22b, 24a, 24b... swing angle regulating section.

Claims (1)

[Claims] 1. A vibrating rod body that is swingably supported with respect to the watch body, and a drive coil or magnet that is electromagnetically coupled with a magnet or drive coil provided on the vibrating rod body to generate a swing driving force in the vibrating rod body. The swing drive board is suspended and supported on the watch body so that its center of gravity always faces in the vertical direction with respect to the watch body, and the swing angle regulating part regulates the swing angle of the swing rod body with respect to the swing drive board. The magnets or drive coils in the vibrating rod body and the vibrating drive board are arranged at a distance in the direction of gravity from the respective rocking centers, and when the watch body is in a vertical position, the vibrating rod body and the driving coil A decorative pendulum device characterized in that each swing center of the driving board is located on a vertical line, the swing rod body is always driven at the swing center, and the swing angle is regulated to a predetermined value or less.