JP3377919B2 - Mechanism clock - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clockwork timepiece in which a timepiece operation is performed by a decoration at a predetermined time.

[0002]

2. Description of the Related Art In a conventional mechanical clock, a cutout window provided in a part of the dial of the clock is opened at the time of the time signal, as shown in Japanese Utility Model Publication No. 6-43753, for example. The placed dolls and other decorative objects performed a decorative time signal operation. However, in this method, since the entire dial is exposed to the eyes even during the time signal operation by the ornament, there is a drawback that the visual decoration effect of the ornament time signal operation is weakened.

Therefore, the applicant of the present application, as shown in FIG. 4, is capable of moving split panels 2B each having a dial 2A formed on a housing 5 of a timepiece so as to be separated from each other in parallel to the front surface of the housing. In the state where the split panel 2B is attached and the split panel 2B is closed, the rotary shaft 6a which is rotated by the movement 6 projects from the cutout portion 2h, and the minute hand 3 and the hour hand 4 are attached to the rotary shaft 6a. As shown in FIG. 2, the split panels 2B move in parallel to the front surface of the housing 5 and away from each other, and are housed in the housing 5 so that the entire panel cannot be seen. Body 8
Has proposed a mechanical clock that performs a decorative time signal operation (see Japanese Patent Application No. 8-108888).

The mechanism clock according to this proposal is shown in FIG.
As shown in (b) and FIG. 6 (a), motors 7 are arranged in the housing 5 near both sides of the bottom surface 5a, and the split panel 2B is split into a plurality of split pieces at right angles to the opening / closing movement direction. Each of the divided pieces is flexibly connected at a predetermined angle by the notch groove 2c, and the fixed member 7a fixed to the rotary shaft of the motor 7 is fixed to the divided panel 2B when the housing 5 is closed. It is fixed to each of the divided pieces located at both ends.

In the mechanical clock according to the above proposal, FIG.
As shown in one of the split panels 2B,
When the panel is closed, as shown in FIG.
Most of B is in the guide 5g, and when the fixing member 7a is rotated by the motor 7 and the split panel 2B is opened,
As shown in FIG. 7B, the end of the divided piece located at the rearmost position in the moving direction of the divided panel 2B is located at the end of the guide 5g, and the divided panel 2B is opened left and right.

[0006]

In the mechanical clock according to this proposal, as shown in FIG. 6 (b), the split panel 2B is used.
The fixing member 7a when moving when opening or closing
The division pieces other than the division pieces connected to are located outside the turning radius r of the division panel 2B near the end of the guide 5g. Therefore, when the split panel 2B is moved when it is opened or closed, the split piece is moved to the housing 5 of the timepiece.
Since it moves so as to project to the front side once, the visual aesthetics at the time of movement are impaired, and the shortening of the depth of the housing 5 is impeded, which causes a problem in thinning the timepiece. Further, the rotation of the divided piece by the fixing member 7a lacks smoothness, and the generated moving sound is relatively loud.

The present invention has been made in view of the above circumstances, and an object thereof is to open and close a split panel having a dial plate while maintaining the visual aesthetics, smoothly performing no moving noise, and reducing the thickness. It is to provide a mechanism clock that can realize.

[0008]

In order to achieve the above object, the present invention is to store a dial installed in a predetermined position on the back of the pointer in a housing and to set the dial on the back of the pointer. A clockwork timepiece having a dial opening / closing part for returning to the position of, and a decorative body that is exposed by housing the dial in the housing and is hidden by the returning.
The dial plate is divided into a plurality of partial panels in a direction substantially orthogonal to the storage direction, each partial panel is flexibly connected at the divided portion , and at least the partial panel is
Keep the partial panel linear until it is stored in the housing.
While guiding, continuously from the straight part above the housing
And guide it in the direction of the back of the
Has a guide including a linearly guiding portion .

Further, in the present invention, the dial plate is formed by attaching a plurality of hard thin films to a flexible film at predetermined intervals.
Is configured .

Further, according to the present invention, the dial plate has both end portions.
Then, the hard thin film is attached without leaving the flexible film.
It is

Further, according to the present invention, the dial plate is divided into a first panel portion and a second panel portion which are moved in directions away from each other when stored.

Further, in the present invention, the dial plate is divided into a first panel portion and a second panel portion which are moved in a direction away from each other when stored, and the first and second panel portions are separated from each other. It is divided into a plurality of partial panels in a direction substantially orthogonal to the storage direction, and the partial panels are flexibly connected at the divided portions.

Further, in the timepiece mechanism of the present invention, the end portion of the dial plate is provided with engaging means for engaging with the end surface which is in contact with the dial plate during the closing operation.

Further, in the clockwork timepiece of the present invention, at least until the partial panel is housed in the housing.
The partial panel is linearly guided, and the linear panel is continuously curved and guided in the back direction of the housing from the linear portion, and a guide including a linear guide portion is provided in a part of the curved portion. .

Further, according to the present invention, since the dial is constituted by, for example, a flexible film and a plurality of hard thin films attached at predetermined intervals, the time code is directly attached to the panel to manufacture the dial. It is possible to simplify the process and reduce the manufacturing cost, increase the flexibility of the front panel, reduce the accommodation space, and downsize the timepiece.

According to the clockwork timepiece of the present invention, for example, a part of the curved portion of the guide includes a portion that guides in a straight line. Therefore, the rearmost partial panel extends along the entire area of the front linear guide. Even if it moves smoothly in parallel with each other and is located near the curved curved guide, no displacement force is applied to the rearmost partial panel in the direction away from the guide. Always move smoothly parallel to the guide.

Further, according to the present invention, for example, the end surfaces of the first panel portion and the second panel portion which are in contact with each other when closed are engaged and held by the engaging means. Therefore, when the dial plate is sealed, the first panel portion and the second panel portion closely contact each other without a gap even if the timepiece is tilted, and the appearance is improved.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is an explanatory plan view showing the configuration of the main part of the present embodiment, FIG. 2 is a front explanatory diagram showing the configuration of the main part of the present embodiment, and FIG. 3 shows the configuration of the front panel of the present embodiment. FIG.

In the present embodiment, as shown in FIGS. 1 and 2, the drive mechanism box 31 is fixedly arranged on the bottom surface of the housing 5 of the timepiece, and the motor 3 is mounted on the upper plate of the drive mechanism box 31.
The drive gear 27, which is fixed to 0 and is rotated by the gear 26 attached to the rotating shaft of the motor 30, is rotatably attached to the upper plate of the drive mechanism box 31 and
Similarly, the drive gear 27 that meshes with the drive gear box 3
It is rotatably mounted on the upper plate of the unit 1. A floor plate 32 on which a clock is arranged is provided above the drive mechanism box 31, and in the floor plate 32, linear guide grooves 23a parallel to the front surface of the housing 5 and both side portions of the housing 5 are provided. The guide groove 23 is composed of a curved guide groove 23b which is continuous with the guide groove 23a and extends in the back direction of the housing 5, and a linear guide groove 23c which is continuous with the guide groove 23b.
Are formed. In Fig. 1, considering the left-right symmetry,
Only the left side portion of the guide groove 23 is shown for simplicity.

In the present embodiment, as shown in FIG. 2, the front panel 2 constituting the front plate of the timepiece portion of the housing 5 includes a left front panel 2L and a right front panel 2R which are separated from each other.
It consists of and.

As shown in FIG. 3, the front panel 2 has a thin film 35 made of a flexible plastic, and a thin thin film 36 made of a hard plastic, which leaves the thin film 35 at a predetermined width k interval, at a right angle to the moving direction. Left front panel 2
Four sheets are attached to each of the L and the right front panel 2R. In this case, at both ends of the left front panel 2L and the right front panel 2R, the hard thin films 36 are attached without leaving the thin film 35, and the left side front panel 2L and the right front panel 2R are contacted with each other at the left side. Front panel 2
A permanent magnet 37 is fixed to L, and a recess 39 is provided in the right front panel 2R.
A permanent magnet 38 having a polarity opposite to that of is fixed. Characters are directly printed on the front panel 2 instead of attaching a dial separately.

The front panel 2 as described above includes a plurality of partial panels 20 which are constructed so that they can be bent by the thin film 35 portion.
At the lower end of each partial panel 20, a roller 21
In the closed state of the front panel 2, the roller 21 of each partial panel 20 is rotatably engaged with the linear guide groove 23a of the guide groove 23 located on the front surface of the housing 5. Further, rollers 25 are attached to the upper ends of the respective partial panels 20, and these rollers 25 can roll freely on guides (not shown) formed on the upper plate of the housing 5 in correspondence with the guide grooves 23. Engaged.

A rack 28 fixed to the partial panel 20 at the end of the left front panel 2L located at the center when the front panel 2 is closed is arranged along the linear guide groove 23a. 28 is meshed with the drive gear 27. Similarly, the partial panel 20 at the end of the right front panel 2R located at the center when the front panel 2 is closed.
The rack 29 whose end is fixed to the
The rack 29 is arranged along 3a so as to face the rack 28, and the rack 29 is meshed with the drive gear 27. In FIG. 1, the right front panel 2R is omitted for simplicity in consideration of the symmetrical structure.

As described above, in this embodiment, when the motor 30 rotates, the racks 28, 2 are driven through the gear 26 and the drive gear 27 meshed with the rotation shaft of the motor 30.
9 moves in mutually opposite directions, and by the movement of the racks 28, 29, the left front panel 2L and the right front panel 2R are moved away from the closed state and opened according to the rotation direction of the motor 30, Alternatively, they are configured to move from the open state so as to approach each other and close.

Further, in the present embodiment, the minute hand 3 and the hour hand 4 are disposed so as to project from the cutout portion 2h of the front panel 2 as in the conventional mechanical timepiece described with reference to FIG. Around the time 2h, the time code is printed on the front panel 2 and a decorative body such as a doll is arranged in the housing 5.

The operation of this embodiment having such a configuration will be described. In normal time, the front panel 2 is in a closed state as shown in FIG. 2, and the time is measured by the clock in this state. Then, at a predetermined time set in advance, the motor 30 is activated by a command from a control unit (not shown). As a result, the gear 26 rotates clockwise, and the drive gear 27 that meshes with the gear 26 rotates counterclockwise.

By the rotation of the drive gear 27, the rack 28 meshing with the drive gear 27 moves in the direction of the arrow X1 in FIG. 2, and through the partial panel 20 at the end of the left front panel 2L connected to the rack 28. Then, the left front panel 2L moves in the linear guide groove 23a in the arrow X1 direction.
When reaching the curved guide groove 23b, the partial panels 20 are adjacent to each other at the thin film 35 portion.
The partial panel 20 that bends with respect to 0 and moves along the curvature of the guide groove 23b by the roller 21 and reaches the linear guide groove 23c is refracted with respect to the adjacent partial panel 20 in the thin film 35 portion. , Linear guide groove 23c
To move.

In this case, since the linear guide groove 23c is present, the rearmost partial panel 20 smoothly moves in parallel with the guide groove 23a along the entire area of the linear guide groove 23a, and a curved line is formed. Even if it is located near the guide groove 23b, the displacement force is not applied to the thin film 35 portion of the rearmost partial panel 20 in the direction away from the guide groove 23b. It always moves smoothly in parallel with the guide groove 23a.

Then, the roller 21 of the rearmost partial panel 20 of the left front panel 2L connected to the rack 28 is
When reaching the position near the end of the linear guide groove 23a, the motor 30 is stopped. As a result, the rearmost partial panel 20 is positioned along the linear guide groove 23a, and the partial panel 20 positioned at the tip of the movement and the next partial panel 20 connected to this partial panel 20 are Located along the linear guide groove 23c, the rearmost partial panel 20
The partial panel 20 adjacent to the
The front panel 2 is in an open state when it is positioned along. The right front panel 2R is similarly opened,
Since this operation is the same as that of the left front panel 2L, duplicate description will not be given.

In this way, when the front panel 2 is opened, a decorative time signal operation by a decorative object such as a doll arranged in the housing 5 is performed, and the time signal operation continued for a predetermined time is completed. Then, by the command from the control unit,
The motor 30 starts reverse rotation, the gear 26 rotates in the counterclockwise direction, the drive gear 27 rotates in the clockwise direction, and the rack 28 moves in the arrow X2 direction and the rack 29 moves in the arrow X1 direction in FIG. Panel 2 is closed again.

As described above, according to the present embodiment, the racks 28 and 29 for converting the rotation of the motor 30 into the linear movement via the gear 26 and the drive gear 27 make the plurality of partial panels 20 into a thin film. In the film 35 portion, the partial panel 20 at the end of the left front panel 2L or the right front panel 2R, which is flexibly connected, has a linear guide groove 2
Since the front panel 2 is linearly driven to open and close along the line 3a, the front panel 2 smoothly moves in a plane parallel to the front surface of the housing 5 of the timepiece while maintaining its visual aesthetics and without moving noise. It becomes possible to do. In addition, according to the present embodiment, only one driving motor 30 is required, the manufacturing cost is reduced, and the number of the partial panels 20 of the front panel 2 is relatively easily increased. Flexibility can be enhanced, and the curvature of the curved guide groove 23b can be reduced to facilitate size reduction of the entire timepiece.

In the present embodiment, the case where the permanent magnet is attached to the contact surface between the left front panel and the right front panel has been described, but the present invention is not limited to this embodiment, and the left It is also possible to provide an electromagnet and a coil or a snap engagement means on the contact surface between the front panel and the right front panel.

When the front panel has a structure in which a plurality of hard thin films are attached to a flexible film at predetermined intervals, as shown in FIG. 3, the guide groove 23 is guided by the upper side portion and the lower side portion. Although the example in which the rollers 25 and 21 are provided in the part has been described, in this case, the rollers are not particularly required,
For example, it is a bar-shaped guided portion, or the upper side is projected to the front side or the rear side so as to be orthogonal to the panel surface, and this is guided by a guide rail arranged in parallel with the upper portion of the panel. Various embodiments are possible. Further, the guide groove 23 is provided with a linear guide groove 23c following the curved guide 23b, and the rearmost partial panel 20 is provided.
Always moves smoothly in parallel with the guide groove 23a. However, in a configuration in which a plurality of hard thin films are attached to a flexible film at a predetermined interval, the area following the guide groove 23a is entirely curved. It may be formed as a guide groove. In this case, the rearmost partial panel 20 always has the guide groove 23a.
It moves smoothly in parallel with. Further, the hard thin films may be provided on both ends of the panels 2L and 2R, and it is not necessary to provide a large number of hard thin films at predetermined intervals as shown in FIG.

[0034]

As described above, according to the timepiece mechanism of the present invention, the dial moves smoothly on the front surface of the housing on the same surface without any visual aesthetics and without any moving sound, and the motor is It is possible to reduce the manufacturing cost with only one unit

Further, according to the present invention, since the end surfaces of the first panel portion and the second panel portion which are in contact with each other when closed are held in close contact with each other by the contact means, the first panel portion is closed when the dial is closed. Even if the timepiece is tilted, the panel portion and the second panel portion closely contact each other and have a good appearance.

Further, according to the present invention, since a plurality of hard thin films are attached to the flexible film at a predetermined interval, the panel is directly marked with a time code to simplify the manufacturing process and reduce the manufacturing cost. It is possible to reduce the size of the timepiece, increase the flexibility of the front panel, reduce the accommodation space, and downsize the timepiece.

[Brief description of drawings]

FIG. 1 is an explanatory plan view showing a configuration of a main part of an embodiment of the present invention.

FIG. 2 is a front explanatory view showing a configuration of a main part of the same embodiment.

FIG. 3 is an explanatory diagram showing a configuration of a front panel of the same embodiment.

FIG. 4 is an explanatory diagram showing a configuration of a conventional mechanical clock.

FIG. 5 is an explanatory diagram when the dial of a conventional mechanical clock is opened.

FIG. 6 is an explanatory diagram showing an operation of a dial plate opening / closing mechanism of a conventional mechanical clock.

[Explanation of symbols]

2 ... Front panel 5 ... Housing 20 ... Partial panel 21, 25 ... Laura 23 ... Guide groove 26 ... Gear 27 ... Drive gear 28, 29 ... Rack 30 ... Motor 35 ... Thin film 36 ... Hard thin film 37, 38 ... Permanent magnet

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G04B 45/00 G04B 19/06 A63H 13/20

Claims (6)

(57) [Claims] 1. A dial opening / closing part for accommodating a dial installed at a predetermined position on the back of the pointer in a housing and for returning the dial to the predetermined position on the back of the pointer, and a dial for closing the dial. A clockwork timepiece having a decorative body that is revealed by being housed in the housing and is concealed by restoration, wherein the dial is divided into a plurality of partial panels in a direction substantially orthogonal to the housing direction. The panels are flexibly connected at the divided portions , and at least the partial panels are housed in the housing.
Then, while guiding the partial panel linearly,
Is continuously curved from the straight part of the
A part that guides and guides a part of this curved part in a straight line
A mechanical clock with a guide that includes the minutes . 2. The clockwork timepiece according to claim 1, wherein the dial is formed by attaching a plurality of hard thin films to a flexible film at predetermined intervals. 3. The clockwork timepiece according to claim 2, wherein the dial plate is attached with a hard thin film on both ends thereof without leaving a flexible film. 4. The clockwork timepiece according to claim 1, 2 or 3, wherein the dial is divided into a first panel portion and a second panel portion that are moved in directions away from each other when stored. 5. The dial plate is divided into a first panel portion and a second panel portion which are moved in directions away from each other when stored, and the first and second panel portions are substantially arranged in the storage direction. The timepiece timepiece according to claim 1, 2 or 3, wherein the timepiece is divided into a plurality of partial panels in a direction orthogonal to each other, and the partial panels are flexibly connected at the divided portions. 6. The end portion of the dial plate is provided with engaging means for engaging an end surface which is in contact with the dial plate at the time of closing operation.
A mechanical clock as described in 2, 3, 4 or 5.