JPH1090439A - Gimmicky clock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To give unexpectedness to the variation of the decoration of a gimmicky clock by making the moving mechanism of the decoration nonunderstandable. SOLUTION: An opening hole 2a is bored through the front plate 2 and another opening hole 10a is bored through a shield plate 10 so that the hole 10b can be faced oppositely to the hole 2a and the shield plate 10 is rotatably positioned behind the front plate 2. A plurality of divided areas having the same central angle is formed on the front face of a decorative plate 11 and the plate 11 is rotatably positioned behind the shield plate 11 after different decorations 12a, 12b, and 12c are respectively attached to the areas so that each decoration can be faced oppositely to the opening hole 2a. A driving means 16 which rotatably drives the shield plate 10 and decorative plate 11 rotationally drives the decorative plate 11 when the opening hole 10a of the shield plate 10 comes off the position facing the opening hole 2a of the front plate 2 by rotatably driving the shield plate 10 and faces the opening hole 10 of the shield plate 10 oppsoitely to the opening hole 2a of the front plate 2 after a different decoration comes to the position facing the hole 2a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece.

[0002]

2. Description of the Related Art Conventionally, a window hole is made in a part of a dial,
The decoration provided on the rotating plate is arranged in this window hole,
In some cases, the decoration is moved by rotating the rotating plate around.

[0003]

In the above-mentioned conventional mechanical timepiece, the movement of the ornament can be seen from the window hole of the dial, so that the structure of the operation can be easily imagined and lacks unexpectedness. There was a problem that they were easily bored.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention interposes a shielding plate between a window hole of a front panel and a decoration, and once the decoration moves, the window hole is temporarily closed. It is configured such that it is closed by the shielding plate, the decoration is moved, and then the shielding plate is opened again. With such a shielding plate, the mechanism by which the decoration moves is not easily understood, and a different decoration appears each time the window hole is opened, thereby giving the viewer unexpectedness.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is characterized in that a window is provided in a front plate of a timepiece, and a shielding plate having a window hole capable of facing the window of the front plate is rotatably provided behind the front plate. In addition, a plurality of areas having the same central angle are divided and formed on the front surface of the rotatable decorative plate. Different decorations are provided on each area, and the decorations can be opposed to each other behind the window holes of the front panel and the shield panel by rotating the decoration plate. Driving means for rotationally driving the shielding plate and the decoration plate is provided, and the driving means rotates the shielding plate and rotates the decoration plate after the window hole is displaced from the position facing the window hole of the front plate. After the drive is performed and a different decoration comes to a position facing the window hole of the front plate, the window hole of the shielding plate is positioned to face the window hole of the front plate.

In this way, the mechanism by which the decoration moves can be configured so as not to be easily recognized, and a different decoration appears suddenly, giving the viewer unexpectedness, surprise, and easily get bored. Never be.

In the driving means, a gear rotatably driven by a driving motor, a tooth portion of a shielding plate meshing with the gear, and a gear meshing with the gear and the shielding plate are fed by a fixed central angle. It is preferable that the transmission wheel is formed of a toothless gear that later meshes with the teeth of the decorative plate and transmits rotation to the decorative plate by a central angle corresponding to one area. With this configuration, the configuration of the driving means is simplified, and the decorative plate can be intermittently driven for each region while the shield plate is continuously driven to rotate.

Further, it is preferable that the shield plate and the decorative plate are arranged concentrically and are rotatable. This facilitates the alignment between the window hole of the shielding plate and the decoration, simplifies the configuration of the driving means, and reduces the cost.

[0009]

Embodiments will be described with reference to the drawings.
As shown in FIG. 1, a time display unit is provided on the front surface of the exterior frame 1. The time display unit displays the time by an hour hand 3 and a minute hand 4 rotatably provided on the front surface of a dial 2 as an example of a front plate provided with an hour indicator. As shown in FIG. A watch mechanical body 6 is fixed to a watch mechanical body mounting plate 5 fixed to the back side of the exterior frame 1, and the pointer shaft 7 is driven to rotate by the watch mechanical body, and the pointer shaft projects from the dial 2. An hour hand 3 and a minute hand 4 are fixed to ends.

A transparent cover 9 made of glass or the like is provided on a front surface of the dial 2 through a space where the hour hand 3 and the minute hand 4 are located. As shown in FIGS. 1 and 3, the dial 2 has one of the decorations 12a, 12b, and 12c of the decoration plate 11 described later with a straight line connecting the axis of the pointer shaft 7 and the position of 6 o'clock as a center line.
A window hole 2a is formed so as to be visible within a range of a central angle of 120 degrees around the axis of the pointer shaft 7.

As shown in FIG. 2, a shielding plate 10 is provided behind the dial 2. The shield plate 10 is rotatably supported by the pointer shaft 7, and has a slightly larger window hole 10a at the same position as the window hole 2a of the dial 2, as shown in FIG. Further, a tooth portion 10b is formed on the outer periphery of the shielding plate.

A decorative plate 11 is provided behind the shielding plate 10. The decorative plate 11 is rotatably supported by the pointer shaft 7, and as shown in FIG. 5, its front side is partitioned at a central angle of 120 degrees, and a first area 11a, a second area 11b, and a third area 11b are provided. The region 11c is formed. On each area, decorations 12a, 12b, and 12c are provided. On the back side of the decorative plate 11, a tooth portion 11d is concentric with the pointer shaft 7.
Are integrally formed.

A shaft 5 a protrudes from the front side of the machine body mounting plate 5, and the tip of the shaft 5 a is located close to the back of the decorative plate 11. A transmission wheel 13 is rotatably fitted on the shaft 5a. The transmission wheel 13 is formed by integrally forming a toothless gear 14 and a gear 15, and the toothless gear 14 is formed to have a slightly larger diameter than the gear 15, and as shown in FIG. The tooth portion 14a is formed only in the range of the degree, and the tooth portion transmits the rotation by the central angle of 120 degrees corresponding to one of the three regions of the decorative plate 13 described above. It can be meshed with the tooth portion 11d. Gear 15
A tooth portion is formed all around the outer periphery of. Since the toothless gear 14 and the gear 15 rotate integrally as the transmission wheel 13, when they are formed as separate parts, they may be connected to rotate integrally.

A drive means 16 for rotatingly driving the shielding plate 10 and the decorative plate 11 is provided between the dial 2 and the machine body mounting plate 5. The drive motor M of the drive means 16 is fixed to the machine body mounting plate 5, and the rotation of the drive motor M is transmitted to the gears 18a and 18b via a motor pinion 17 fixed to the drive shaft of the drive motor. Is done. Drive motor M
Gears 18a and 18b driven by the
And the machine body mounting plate 5 is fixed to a shaft 19 rotatably supported on the shaft, and is simultaneously rotated when the motor M rotates. The gear 18a meshes with the teeth 10b of the shielding plate 10,
The gear 18 b meshes with the teeth of the gear 15. Exterior frame 1
Is covered with a back cover 20.

FIG. 7 is a diagram viewed from the front side without decoration, and shows a gear 18b and a gear 15 which are sequentially meshed with the motor pinion 17 of the motor M, and a toothless gear 14 coaxial with the gear 15.
2 shows the arrangement of the tooth portions 11d of the decorative plate 11 that can be engaged with the tooth portions 14a.

[0016]

[Operation] First, in a normal timekeeping state, the window hole 2 of the dial 2 is used.
a and the window hole 10a of the shielding plate 10 are opposed to each other, and one of the three regions from the first region 11a to the third region 11c of the decorative plate 11 (the first region in FIG. 1) is located in the window hole. The decoration provided on the area is visible from the front. In this state, the tooth portion 14a of the toothless gear 14
Is disengaged from the teeth of the teeth 11d of the decorative plate 11.

Therefore, for example, when a karakuri operation command is given by the hour signal at the hour, the drive motor M is started and the rotation of the motor pinion 17 is controlled by the gears 18a and 18a.
b. The shield plate 10 is rotationally driven by the gear 18a, the window hole 10a gradually moves from a position facing the window hole 2a of the dial 2, and the window hole 2a gradually moves
It is getting blocked by 0. During this time, the gear 15 is also driven to rotate by the gear 18b.
a has not yet meshed with the teeth 11d,
Does not rotate, for example, the decoration 12a on the first region 11a is gradually hidden by the shielding plate 10 while facing the window hole 2a. When the shield plate 10 is driven to rotate by 120 degrees, the window hole 2a is completely closed by the shield plate 10,
Thereafter, the teeth 14a of the toothless gear 14 mesh with the teeth 11d.

When the rotation is continuously transmitted to the gears 18a and 18b, the shield plate 10 and the decorative plate 11 are both driven to rotate at the time of the next rotation of 120 degrees, and the window hole 2a is closed by the shield plate 10. In this state, the decoration plate 11 rotates, and the decoration 12b on the second area 11b moves behind the window hole 2a. When the 120-degree rotation is completed, the decoration 12b on the second area 11b completely faces the window hole 2a, and the movement ends here. At this time, the meshing between the teeth 14a and the teeth 11d of the toothless gear 14 is released.

The rotation continues further, and in the last 120-degree rotation, the shielding plate 10 and the transmission wheel 13 are driven to rotate, and the window hole 1 is rotated.
At the same time, the tooth portion 14a reaches the position facing the window hole 2a again, and the tooth portion 14a reaches a position separated from the tooth portion 11d by a central angle of 120 degrees. As the window hole 10a of the shielding plate 10 moves, the decoration 12b on the second area 11b starts to appear, but since the decoration 12b at this time is different from the previous decoration 12a, for the viewer, The phenomenon that the decoration has changed makes the so-called stage seem dark, and you will be surprised at its unexpectedness. Here, the drive signal to the motor M is cut off, the motor stops, and the gears 18a and 18b stop rotating.

Until the next hour signal is supplied to the motor M, the decoration 12b appears through the window holes 2a and 10a, and the above operation is repeated by the input of the next signal, and the decoration 12c appears. Will appear.

In the above embodiment, the decorative plate 11 is divided into three parts to provide first to third areas, and different decorations are provided in each of the areas. However, the present invention is not limited to this. May be divided into more areas. The decoration is
The present invention is not limited to stationary ones, but can also be configured to be driven and move, thereby making it even more interesting.

FIG. 8 shows another embodiment. In the above embodiment, an example is shown in which the shielding plate and the decorative plate are arranged concentrically with the dial. The structure of the shield plate 10 is the same as the above example, and the center of rotation of the decorative plate 21 is different from the center of the dial. Decorative plate 2
1, the first to third regions 21a to 21c similar to the embodiment of FIGS. 1 to 7 face behind the window holes 2a and 10a, and different decorations 22a are provided on the respective regions.
Is provided. The driving means for driving the shielding plate 10 and the decorative plate 21 is the same as the above example, though not shown, and operates in the same manner. The number of gears that rotationally drive the shielding plate 10 and the decorative plate 21 is not limited to two provided as in the above example, and a configuration in which rotation is transmitted to both by one gear may be used. Other structures are the same as those of the embodiment shown in FIGS.

In each of the examples, a window hole is formed in the dial, but the present invention is not limited to this. A window hole is formed in the front plate of the timepiece which is not shown but is not on the dial, and the window hole is formed. It may be configured such that the shield plate, the decorative plate, and the decoration as described above are disposed behind. By doing so, the degree of freedom of arrangement is increased, and a novel mechanical clock is obtained.

[0024]

According to the present invention, the window hole of the shielding plate is located opposite to the window hole of the front plate, and one of a plurality of regions provided on the decorative plate can face both window holes. When the decoration provided is changed, the window hole is closed once by the rotation of the shielding plate, the decoration is changed by the rotation of the decoration plate, and then the shielding plate is rotated and the window hole is opened again, so the decoration moves. The mechanism is not easily understood, and different decorations appear each time a window hole is opened, just like the darkness of the stage, giving the viewer a surprising feeling, surprise, and not getting bored easily.

The driving means sends the shield plate via a gear wheel which is driven to rotate by the drive motor, and at the same time, sends the shield plate at a fixed central angle via a transmission wheel comprising a gear and a toothless gear. After that, since the decorative plate is advanced by the central angle corresponding to one area, the decorative plate can be changed by driving the shielding plate and the decorative plate with a simple configuration. Furthermore, when the shielding plate and the decorative plate are arranged concentrically,
The alignment between the window hole of the shielding plate and the decoration can be easily performed, the configuration of the driving means can be simplified, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the same.

FIG. 3 is a front view of the dial.

FIG. 4 is a front view of the shielding plate.

FIG. 5 is a front view of a decorative plate.

FIG. 6 is an enlarged front view of a transmission wheel to a decorative plate.

FIG. 7 is a front view showing the mechanism of the mechanism by a dotted line.

FIG. 8 is a front view showing another embodiment of the present invention.

[Explanation of symbols]

2 Front plate (character plate) 2a Window hole in front plate 10 Shield plate 10a Window hole in shield plate 10b Teeth portion of shield plate 11 Decorative plate 11a, 11b, 11c Area 11d Teeth portion of decorative plate 12a, 12b, 12c Decoration 13 Transmission wheel 14 Missing tooth gear 15 Gear wheel meshing with a gear rotationally driven by a drive motor 16 Drive means 18a, 18b Gear M rotationally driven by a drive motor M Drive motor

Claims (3)

[Claims] A window plate is provided on a front plate of a timepiece, and a shielding plate having a window hole capable of facing the window hole of the front plate is provided.
A plurality of regions having the same center angle are divided and formed on the front surface of the decorative plate rotatably provided behind the front plate. Different decorations are provided, and each of the decorations can face behind the window hole of the front plate and the window hole of the shielding plate by rotating the decoration plate, and rotate the shielding plate and the decoration plate. A driving means for driving, wherein the driving means rotationally drives the shielding plate, and rotationally drives the decoration plate after a window hole thereof is displaced from a position facing the window hole of the front plate. A timepiece wherein the window hole of the shielding plate is opposed to the window hole of the front plate after the decoration arrives at the position facing the window hole of the front plate. 2. The driving device according to claim 1, wherein the driving unit includes: a gear that is rotationally driven by a driving motor; a tooth portion of the shielding plate that meshes with the gear; and a gear that meshes with the gear and the shielding plate are fixed. And a toothless gear that meshes with the teeth of the decorative plate and transmits the rotation to the decorative plate by the central angle corresponding to the one area after being fed by the central angle of A mechanical clock characterized by the following. 3. The timepiece according to claim 1, wherein the shielding plate and the decoration plate are arranged concentrically and are each rotatable.