JP2003084079A - Analog timepiece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make respective decorations act interestingly in time display positions for the respective just-hours in a time display part. SOLUTION: The decorations 6a-6l are provided in the time display positions for the respective just-hours in the time display part, and doors 4a-4l are provided in the front sides of the decorations to expose the decorations by conducting opening operations therefor in prescribed times. Door opening and closing blocks 8a-8d for opening and closing plurality of the doors independently are combined plurally in a door opening and closing device 8 for controlling the opening and closing of the doors 4a-4l.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an analog timepiece provided with a mechanism such as a decoration at each hour display position on the hour display of a time display section.

[0002]

2. Description of the Related Art As one of the types of timepieces, an analog timepiece having a pointer at the center of a front dial and an hour display character outside the turning radius of the pointer is used for an analog timepiece. There is an analog timepiece equipped with a so-called karakuri device that has a mechanism for opening the door to reveal decorations such as dolls.

The applicant of the present invention has previously proposed an analog timepiece equipped with such a karakuri device as a rotary drive device such as a decoration such that decorations such as dolls and hour display characters are alternately displayed around the dial. Proposed (Japanese Patent Publication No. 5-24474). In this proposal, a rotating body is rotated by a driving gear that rotates along a fixed gear, so that the ornament and the hour display character are alternately placed in front of each other. By arranging this rotating body around the dial of the timepiece, the door is opened and decorations such as dolls appear at the hour, and when the door is closed, the time display characters are drawn on the door. Since these decorations are provided at the positions corresponding to the time display characters, a total of twelve decoration driving devices are provided correspondingly.

[0004]

As described above, 12
In the case where each ornament is driven by each ornament drive device, a drive motor and a mechanism for driving an ornament and a door must be provided for each drive device, which complicates the configuration and increases the number of parts and the number of assembly steps. Further, there is a problem that the wiring and the like are complicated and are expensive.

[0005]

In order to solve the above-mentioned problems, according to the present invention, decorations are provided at the hour display positions of the hour on the time display portion, and a predetermined time is provided in front of each decoration. In an analog timepiece provided with a door for exposing the decoration by performing the opening operation, the door opening / closing device is combined with a door drive block for opening / closing a plurality of doors independently. As a result, the number of door drive blocks is reduced to reduce the number of parts and the number of assembly steps.

In the door drive block, the opening / closing operation of the doors is changed by setting the opening / closing timings of the doors at different timings through a plurality of Genebus top mechanisms driven by a single motor.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, decorations are provided at the hour display positions on the hour of the time display portion, and the decorations are exposed in front of each decoration by performing an opening operation at a predetermined time. In an analog timepiece provided with a door to be opened, a door opening / closing device for controlling opening / closing of the door is provided with a combination of a plurality of door drive blocks for individually opening / closing a plurality of doors, and each of the door drive blocks has a plurality of doors. The doors are arranged side by side at equal intervals on the same circumference, and a plurality of output shafts are arranged side by side on the circumference concentric with the arrangement of the doors. It is characterized in that the door is driven to open and close via a driven lever driven by a drive lever.

Each output shaft of each door drive block is driven through a plurality of Geneva wheels driven by a single motor, and the opening and closing timings of the doors may be different from each other.

Further, each door driving block has three doors, and the door opening timing order of the three doors is located at the center, right or left door, and right or left other door. It is desirable that the doors are located in order, and the closing timing order is set to be the reverse of the opening timing order.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows the front surface of an analog timepiece in a normal time other than the hour. Twelve hour display surfaces 4a1 to 4l are provided at the hour display position on the hour of the time display portion inside the circular outer frame 1.
Doors 4a to 4l having 1 are provided at equal intervals. Door 4a
4 l are arranged on the same radius divided at an angle of 30 ° from the center of curvature 01 (see FIG. 5) on the upper case 25 a. That is, the doors 4a to 4l are arranged side by side at equal intervals on the same circumference centered on the center of curvature 01. On each hour display surface 4a1-411, hour indicator characters consisting of design letters 1-12 are displayed. Doors 4a-4l shown in FIG.
As shown in FIG. 2, behind each frame 3a
Each of the decorative mounting plates 5a to 5l is fixed to 3d to 3d, and each of the decorative 6a to 6l imitating a doll is provided on the front surface of the decorative mounting plate (see FIGS. 3 to 6).

FIG. 2 shows a state in which the doors 4a to 4l are opened at the hour and the decorations 6a to 6l hidden on the back side of the doors are exposed on the front surface. Each decoration 6a-6l
Are all imitating dolls playing or dancing music, and are attached to the decorative attachment plates 5a to 5l, respectively.

Each of the doors 4a to 4l, the decorative mounting plates 5a to 5l, and the decorative decorations 6a to 6l is made up of a plurality of sets, one set each.
It is attached to one frame, and in the mode of FIG. 4, three sets are attached to one frame, and as a whole, four frames correspond to times 1 to 12 on the outer circumference of the dial 1a. It is located in a position.
By the way, the doors 4a, 4b and 4c, which are located at the upper part and represent the hour display characters 11, 12, and 1, are attached to one frame 3a (see FIGS. 4 and 5). Incidentally, the doors 4a to 4
1, the decorative mounting plates 5a to 5l, and the decorative members 6a to 6l are not limited to three sets, but may be four sets.

FIG. 3 shows the entire structure of the analog timepiece of this embodiment, in which the frame 3a is located at the upper portion, and the ornament swinging means 7a for swinging the ornament 6a is attached to the back side thereof. There is. Of the three ornaments 6a, 6b, 6c attached to the frame 3a, the central portion (12
The decoration 6a at the (time position) is designed so as to shake the doll body when the door 4a is opened.

The other three frames 3b, 3c, 3
The same applies to d, and the dolls corresponding to the doors on which the time display characters 3, 6 and 9 are displayed are provided with a swinging mechanism.

In FIG. 3, in addition to the upper frame 3a, the lower frame 3d is drawn as the frame, but the doll 6l at the position corresponding to 7 o'clock is shown depending on how the cross section line is taken. Therefore, it is not shown because it does not have a decorative rocker.

The inner peripheral portion of each of the frames 3a to 3d is shown in FIG.
As shown in FIG. 4, four door drive blocks 8a to 8a constituting the door opening / closing device 8 for controlling the opening / closing of each door to be described later.
8d are provided respectively. The door opening / closing device 8 is capable of opening and closing the doors 4a to 4l located in the periphery by mounting four door drive blocks 8a to 8d having the same configuration at predetermined positions.

On the rear surface of the central portion of the dial 1a, a watch mechanical body 2 is provided.
Is attached, and a battery holder 10 is provided on the back side thereof via a battery holder mounting plate 9. A speaker mounting plate 12 having a large number of sound emission holes is attached to a lower end portion of the outer frame 1, and the speaker 1 having a sound emission surface facing downward is attached to this.
1 is attached.

In front of the dial 1a, a short hand 13 and a long hand 14 are provided rotatably around the pointer shaft 2a. Further, in front of it, a front glass 15 is pressed around the periphery by a glass edge 16. A latch 18 is provided on the upper portion of the outer frame 1 for locking the clock on a metal fitting such as a wall.
A back cover 19 is fixed to the rear of the exterior frame 1 by means of screws, and a battery small cover 20 is attached to the center of the back cover on the back side.
Is provided.

As shown in FIG. 3, the doors 4a to 4l are swingably attached to the frames 3a to 3d via a rotation center shaft 21 within an angle range of 90 °. Both ends of the rotation center shaft 21 are pivotally supported by bearing plates 22 that are detachably attached to the frames 3a to 3d. The hour display surface 4a1 of the door 4a is formed by printing an hour display character on an aluminum thin disk attached to a decorative portion formed at one end of the flange portion 4a2 shown in FIG. 6 (see FIG. 6). Upper and lower flange portions 4a2, 4a of the door 4a
The other end of 4 has a balancer 23 for suppressing rotation due to its own weight.
Is provided.

The doors 4a, 4b and 4c are the door drive block 8
The drive levers 30a, 31a, 32, which will be described later, are provided in a.
It is possible to swing in an angle range of 90 ° via a and the driven lever 24 attached to the lower flange portions 4a4, 4b4, 4c4 of the door.

FIG. 4 shows the structure of the rear side of FIGS. 1 to 3, and four frames 3a, 3b, 3 are provided inside the exterior frame 1.
c, 3d, and door drive blocks 8a, 8b, 8c, 8d are arranged inside each frame, and the timepiece mechanical body 2 and the drive circuit board K are further arranged inside thereof.

A swinging ornament 6 provided at the positions of 12, 3, 6, and 9 o'clock on the back side of each of the frames 3a to 3d.
Decorative drive means 7a, 7b, 7c, 7d for swinging a, 6d, 6g, 6j respectively are provided.

Each door drive block 8a, 8b, 8c, 8d
As shown in FIG. 4, drive motors 33a, 33b, 33c, 33d are provided on the back surface of one end of each.
Each of these motors 33a, 33b, 33c, 33d,
It can be controlled by the drive circuit boards 34a, 34b, 34c, 34d. Drive circuit boards 34a, 34b, 3
Numerals 4c and 34d receive signals such as time information and hour information from the timepiece mechanical body 2 to receive decoration driving means 7a, 7b, 7c and 7d.
And the motors 33a, 33b, 33c and 33d.

FIG. 5 shows three doors 4a, 4b, 4c provided on the frame 3a located above the exterior frame 1, and each of these doors constitutes a single door opening / closing device 8. The door drive block 8a is combined so as to be opened and closed. The other door drive blocks 8b to 8d have substantially the same configuration as the door drive block 8a.

Regarding the opening / closing mechanism of the door, the one that opens / closes the centrally located door 4a among the three doors will be described here. When the door 4a is provided, flanges 4a2 and 4a4 are provided perpendicularly to the paper surface from the upper and lower positions of the back surface of the display surface 4al. Both ends of a rotation center shaft 21 provided so as to laterally bridge between the flange portions are supported at an intermediate position between the flange portions 4a2 and 4a4. Both ends of the rotation center shaft 21 are axially supported by bearing plates 22 fixed to the upper edge of the frame 3a with screws.

The door 4a can be swung within an angle range of 90 ° via a driven lever 24 attached to the lower flange portion 4a4. When the door 4a rotates 90 ° to the left,
As shown in FIG. 6, the decoration 6a hidden by the door 4a can be seen, and the door 4a is housed in the escape hole 3a1 provided in the frame 3a, and a part of the door 4a is housed vertically when viewed from the front. It will be in the state of being.

FIG. 7 (a) shows the state when the door 4a is closed, and shows the state seen from above in FIG. In this state, the decoration mounting plate 5a and the decoration 6a are completely hidden behind the door 4a and cannot be seen from the front. Further, the positioning of the door 4a is performed by the upper flange portion 4a2.
The protrusion 4a3 provided on one side of the frame 3 is stopped by coming into contact with the side of the rib-shaped part 3a3 formed inside the frame 3. Since the center decoration of the three decorations provided on one frame is a swing decoration, the decoration driving means 7 is provided on the back side of the frame 3a.
a is attached.

FIG. 7 (b) shows a state in which the door 4a is open, as viewed from above in FIG. In this state, the door 4a is in a vertical state when viewed from the front, and the decoration attachment plate 5a and the decoration 6a can be seen from the front. Although the door stop mechanism is hidden behind the frame 3a and cannot be seen, the projection 4a3 provided on the other side of the flange portion is in contact with the rib-like portion 4a2 formed on the frame.

Now, returning to FIG. 5, the description will be continued. As described above, the door opening / closing device 8 includes the four door drive blocks 8a ...
Although it is configured to be opened and closed by 8d, the three doors 4a, 4b, 4c located above the exterior frame 1 can be opened and closed by a single door drive block 8a located above.

Although details of the door drive blocks 8a to 8d will be described later, three outputs are formed on the same radius divided at an angle of 30 ° from the center of curvature O1 on the upper case 25a whose outer peripheral portion is formed in an arc shape. Shafts 27a, 28a, 29a are located and three drive levers 30a, 3 are provided on each of these output shafts.
1a and 32a are provided, respectively. The driven lever 24 described above can open and close each door 4a, 4b, 4c by swinging by the drive levers 30a, 31a, 32a. That is, as described above, the doors 4a to 4l are arranged side by side at equal intervals on the same circumference centered on the center of curvature 01, and the plurality of output shafts 27a, 28a,
.. are arranged side by side on the circumference of a circle concentric with the arrangement of the doors.

That is, as shown in FIG. 5, when the respective doors are closed, the respective drive levers 30a, 31a, 32a.
Is tilted to the right, but when it swings counterclockwise and these drive levers are tilted to the left as shown in FIG. 6, the doors are opened. .
The swing of each drive lever 30a, 31a, 32a is caused by the right end of the door drive block 8a and the lower case 26a (see FIG. 9).
It is driven by a single motor 33a provided on the back side of the.

FIG. 8 shows the state of the front surface of the door drive block 8a. The three drive levers 30a, 31a and 32a mounted on the front surface of the upper case 25a respectively have the first output shaft 27a and the second output shaft. Shaft 28a and third output shaft 29
It is possible to swing in an angle range of 60 ° by a.
The swing angle of each drive lever 30a, 31a, 32a is determined by the arc-shaped guide groove 25a2 formed in the upper case 25a.
And the projections (not shown) provided on the back surfaces of the drive levers 30a, 31a, 32a.

FIG. 9 shows the state of the back surface of the door drive block 8a. The above-mentioned motor 33a is attached to the rear side end of the lower case 26a, and the drive levers 30a, 3 are provided.
The tips of 1a and 32a project upward from the front side.

A motor 33 is provided at the center of the lower case 26a.
A drive circuit board 34a for controlling the rotation of a is fixed. A pair of output terminal portions of the drive circuit board 34a are connected to terminals of the motor 33a via lead wires 35a and 36a. The other two pairs of terminals are connected to the lead wires 37, respectively.
Micro switches 61a, 62a for detecting rotation of a built-in train wheel via a, 38a, 39a, 40a.
(See FIG. 10).

FIG. 10 shows a front state in which the upper case of the door drive block 8a is removed and further the above-mentioned drive lever is removed, and FIG. 11 shows a sectional view of the entire door drive block.

As shown in FIGS. 10 and 11 (a), the drive shaft 33 of the motor 33a mounted on the back surface of the lower case 26a.
The a1 projects into the lower case 26a, and the motor pinion 41a is fixed to the projecting portion. The motor pinion 41a meshes with a second gear 42a1 of a second wheel & pinion 42a that is axially supported by a support shaft erected on the lower case 26a.

The second pinion 4 integrated with the second wheel 42a
2a2 meshes with the 3rd gear 43a1 of the 3rd wheel 43a. The third pinion 43a2 of the third wheel & pinion 43a meshes with the clutch gear 45a constituting the clutch wheel 44a, and as shown in FIG. 11 (b), the clutch pinion 46a provided concentrically with the clutch gear 45a is the first pinion. The idler 51
It meshes with a.

Here, the clutch mechanism will be described in more detail with reference to FIG.

The clutch wheel 44a includes a clutch shaft 47 which is supported by a support shaft 26a2 which supports the center wheel & pinion 42a and a bearing hole provided on the inner surface of the upper case 25a.
The clutch pinion 46a is pivotally supported by a, and a ring-shaped cavity is formed inside the front surface of the clutch pinion 46a. A clutch shaft 47a extends vertically through a boss portion projecting in the hollow portion, and a clutch spring 48a is inserted in the outer peripheral portion. The tip of the clutch spring 48a is a washer 49a.
It is in a state of being compressed by the E ring 50a via the. Therefore, the lower end of the clutch pinion 46a is in elastic contact with the upper surface of the clutch gear 45a1. Angle-shaped knurled parts 45 on the contact surfaces of both cars
a2 and 46a2 are radially formed, as shown in FIG.
Then, both knurled parts are in mesh with each other.

On the other hand, while the clutch pinion 46a is under a predetermined load or more, the clutch gear 45a
When 1 rotates, the clutch pinion 46a rides on the knurled portion against the resistance of the spring force of the clutch spring 48a and floats up, and as shown in FIG. 12 (b), the engagement between the knurled portions is disengaged. The clutch gear 45a can be idle. At this time, an impact noise between the knurled portions is generated, which serves as an abnormal noise to warn the occurrence of an overload.

Returning to FIG. 11, the description of the structure of the door drive block will be continued. As shown in FIG. 11B, the first idler 51a meshing with the clutch pinion 46a is
On the other hand, it meshes with the first feed wheel 52a. First
On the front side of the feed wheel 52a, a fan-shaped guide portion 52a3 and a pin 52a2 are formed in the angular range corresponding to the notch portion of the guide portion (see FIG. 10).

A second idler 53a meshes with the other side of the first feed wheel 52a. Further, a second feed wheel 54a meshes with the other side of the second idler 53a. On the front surface side of the second feed wheel 54a, a fan-shaped guide portion 54a3 and a pin 54a2 are formed integrally with the guide wheel 54a in an angular range corresponding to a notch portion of the guide portion. The first idler 51a and the second idler 53a have the same number of teeth and the same tooth profile, and the first feed wheel 52a
And the second feed wheel 54a have exactly the same shape.

Since the clutch pinion 46a rotates in a single train, the first idler 51a, the first feed wheel 52a, the second idler 53a, and the second feed wheel 54 are rotated.
It can be transmitted in the order of a. Therefore, the first feed wheel 52
a and the second feed wheel 54a are in the same direction and at the same rotation speed.

The first idler 51a is the upper case 25.
Although it is rotatably supported by a support shaft supported by a and the lower case 26a, this support shaft simultaneously serves as the output shaft 29a of the third drive lever 32a. Similarly, the support shaft of the second idler 53a is also connected to the first drive lever 30a.
Output shaft 27a. In addition, an output shaft 28a of a second drive lever 31a that does not support an idler is provided near the lower end of the drive block.

Of the above-mentioned output shafts, a first Geneva wheel 55a is integrally rotatably attached to the first output shaft 27a located at the center. A second Geneva wheel 56a is integrally rotatably attached to the second output shaft 28a located below. A third Geneva wheel 57a is similarly attached to the third output shaft 29a located further above.

The tip ends of the output shafts 27a, 28a, 29a project from the front surface of the upper case 25a, and the drive levers 30a, 31a, 32a already mentioned above are projected in the projecting portions.
Is stuck. That is, the first output shaft 27a has the first drive lever 30a, the second output shaft 28a has the second drive lever 31a, and the third output shaft 29a has the third drive lever 31a.
The drive levers 32a are fixed to each other.

The drive levers 30a, 31a, 32a are attached to the output shafts 27a, 28a, 29a by inserting the mounting holes provided at the respective swing centers into the output shafts,
As shown in FIG. 11 (b), the E-rings 58a, 59a, 60a are provided at the stepped portion formed at the tip of the output shaft so as not to fall off.

As shown in FIG. 10, the Geneva wheels 55a, 56a, and 57a have guides having a shape similar to two blades formed on the outer circumference of the disc, and the guides are formed between these guides. Groove 55 into which the pins 52a2 and 54a2 of the feed vehicle can enter
a1, 56a1, 57a1 are provided. The outer peripheral portions of the respective guide portions are the guide portions 52a3 of the feed wheels 52a, 54a.
54a3 is formed in an arcuate recess that can abut.
As a result, while the feed wheels 52a, 54a are rotating, the guide portions 52a3, 54a3 of the feed wheels can rotate while being in contact with the recesses, and the Geneva wheels 55a, 56a, 57a.
It is possible to wait in a dormant state.

The projections 52a4 (FIG. 11) for detection of the microswitches 61a and 62a are provided at predetermined positions on the outer periphery of the back side of the first feed wheel 52a. As shown in FIG. 11, the motor 33a and the first feed wheel 52a rotate in opposite directions.

Two micro switches 61a and 62a are fixed on the lower case 26a in the vicinity of the outer periphery of the gear 52a1 of the first feed wheel 52a. The one micro switch 61a has a function of stopping the rotation of the motor 33a during normal rotation by the stop pin 61a1 contacting and pressing the protrusion 52a4. In the other micro switch 62a, the stop pin 62a1 has the protrusion 52a4.
By contacting and pressing the motor 33,
It has a function of stopping the rotation of a. These detection signals are transmitted to the lead wires 37a, 38a, 39a, as described above.
It is output to the drive circuit board 34a via 40a (see FIG. 9).
(See) allows the rotation of the motor 33a to be controlled.

Next, the operation of the drive lever by the Geneva top mechanism will be described. As shown in FIG. 11, the drive levers 30a, 31a, 32a are connected to the output shafts 27a, 28, respectively.
Geneva wheel 55a, 56a, 57a via a, 29a
Each of these Geneva wheels rotates with the pin 52a of the first feed wheel 52a and the second feed wheel 54a.
2, 54a2 perform an intermittent rocking motion. Again 2
Since the two feed wheels 52a and 54a are linked by the second idler 53a, they can rotate in the same direction at the same rotation speed.

Now, in the state of FIG. 10, the door drive block 8a
Is stationary, the three doors 4a, 4b, 4c are closed (see FIG. 5). When the hour is reached under this condition, the watch machine body 2 controls the control board K (see FIG. 4).
Is sent to the drive circuit board 34a, and the motor 33a is started (see FIG. 9) to start playing the melody.

When the motor 33a is started (reverse rotation), as shown in FIG.
0, the first feed wheel 52a and the second feed wheel 54
Both a rotate clockwise. As a result, the pin 52a2 of the first feed wheel 52a enters the groove 55a1 of the first Geneva wheel 55a, and the Geneva wheel slowly starts to rotate in the counterclockwise direction. At this time, the second Geneva vehicle 56a
The third Geneva wheel 57a is stopped because no pin has entered the groove. At this time, the guide parts 52a3, 54a3 of the respective feed cars are connected to the Geneva cars 55a, 56a,
The rotating state is maintained in the state of being in contact with the arcuate concave portion 57a.

FIG. 13 shows the relationship between the two feed wheels 52a, 54a and the three Geneva wheels 55a, 56a, 57a in the order of operation. FIG. 10A shows a state in which both feed wheels 52a and 54a are rotating in the clockwise direction following FIG.

In this state, since the pin 52a2 of the first feed wheel 52a reaches the deep position of the groove 55a1 of the first Geneva wheel 55a, the rotation speed of this Geneva wheel is high. In this state, the second Geneva wheel 56a and the third Geneva wheel 57a are stopped as before. However, the pin 54a2 of the second feed wheel 54a is approaching the groove 56a1 of the second Geneva wheel 56a. In the above-mentioned state, of the three doors 4a, 4b, 4c arranged side by side, only the central door 4a starts to open.

FIG. 9B shows the groove of the second Geneva wheel 56a in which the pin 54a2 of the second feed wheel 54a is located on the left side while the rotation of the first Geneva wheel 55a is finished and stopped. 56a1 is shown.
During this period, the first Geneva vehicle is in a stopped state and the third Geneva vehicle 57a is continuously stopped from the initial state.

FIG. 7C shows a state in which the rotation of the second Geneva wheel 56a has been completed, and the pin 52a2 of the first feed wheel 52a has entered the groove 57a1 of the third Geneva wheel 57a and has begun to rotate it. Is shown. Under this state, both the first Geneva wheel 55a and the second Geneva wheel 56a are stopped due to the completion of rotation.

FIG. 7D shows a state in which the rotation of the third Geneva wheel 57a is completed. Therefore, all the doors are open (see FIG. 6).

When the first feed wheel 52a continues to rotate in the clockwise direction by the rotation of the motor 33a, the protrusion 52a4 (see FIG. 10) provided on the back side pushes down the stop pin 62a1 of the right microswitch 62a. The motor 33 by outputting a motor stop signal.
Stop a.

The twelve doors 4a to 4l are attached to each of the four frames 3a, 3b, 3c and 3d, three sets each, and when the motor 33a of the door drive block 8a is stopped, the other doors are next. The motors 33b, 33c, 33d of the drive blocks 8b, 8c, 8d sequentially start rotating operation in a predetermined drive order (for example, 33b, 33c, 33d order), and the respective Geneva vehicles of the respective door drive blocks are driven first. The 1st Geneva car, the 2nd Geneva car, and the 3rd Geneva car are rotated in this order, and when the rotation of the 3rd Geneva car is completed, the motors are stopped with the doors corresponding to the respective Geneva cars being opened. Eventually, the last motor 33d is stopped, so that all the doors 4a to 4l are opened.

While the motors 33a, 33b, 33c, 33d are stopped, the ornament imitating a doll provided at the hour display positions at 12, 3, 6, and 9 o'clock swings and the speaker 1
Melody continues to flow from 1 (see Fig. 3).

When a predetermined time elapses, a signal from the control board K to each drive circuit board 34a, 34b, 34c, 34d for reversing the motor with respect to the direction at the time of starting is in the reverse order of the drive order of the door drive block motor. Output by the motor 33
a, 33b, 33c, 33d sequentially start reverse rotation. Since the description of the reverse rotation of each door drive block 8a, 8b, 8c, 8d is the same for all four, only the door drive block 8a will be described and the other door drive blocks 8b, 8c, 8d will be omitted. When the reverse rotation of the motors 33d, 34c, 34b is sequentially completed and the reverse rotation of the motor 33a is started, each Geneva vehicle rotates in the reverse direction in the order of (d) to (a) of FIG. Swing in the closing direction. That is, the third door 4c, the second door 4b, and the first door 4a are closed in this order. Therefore, the central swing ornament has the longest exposure time.

Thus, all Geneva vehicles 55a, 56
When a and 57a are stopped and all the doors 4a to 4l are closed, the protrusion 52a4 of the first feed wheel tilts the stop pin 61a1 of the other micro switch 61a to stop the motor. Has also stopped playing and has returned to the initial state shown in FIG.

Next, the structure of the door opening / closing mechanism using the drive lever will be described in the range shown in FIGS. Each door 4
It has already been explained that a, 4b, 4c are closed when the tip ends of the drive levers 30a, 31a, 32a are located on the right, start to open as they move to the left, and open when they reach the left end. (See FIGS. 5 and 6).
The positional relationship between the drive lever and the door at this time is shown in FIG. FIG. 14 shows only the central door in FIGS. 5 and 6, but the same applies to the other doors.

The driven lever 24 swings the door 4a by interlocking with the drive lever 30a. The driven lever 24 is fixed to the side surface of the lower flange portion 4a4 of the door so as to be inclined at 45 °. (See FIG. 14B). The base of the driven lever 24 is supported in the vicinity of the end of the rotation center shaft 21, and the pin projecting at the intermediate position engages with the engaging hole (not shown) of the lower flange portion 4a4 so that a predetermined torque is exerted. It does not deviate from the range. In the area where the driven lever 24 projects from the lower flange portion 4a4, there is provided a slit 24a with which the tip of the drive lever 30a can be engaged.

FIG. 7A shows the state where the drive lever 30a is inclined to the right. At this time, the door 4a covers the front of the decoration 6a as shown in FIG. It is located in front of the decoration 6a (see FIG. 7A).

FIG. 7C shows the drive lever 30a rotated in the counterclockwise direction by the intermediate position, that is, 30 °. At this time, the door 4a is in a state of being inclined at 45 °, that is, a half-open state, as shown in FIG.

When the drive lever 30a further rotates counterclockwise and reaches the left side as shown in FIG. 6E, the door 4a is attached to the decoration 6a as shown in FIG. Positioned at right angles and fully open. Of course, when the door closes, it returns to the original position through the reverse process.

In this way, the door drive blocks 8a, 8b,
8c and 8d are single motors 33a, 33b, 33c and 3
Geneva wheels 55a, 56 driven by 3d
The opening and closing timings of the doors are different from each other via a and 57a. Further, each door drive block 8a, 8b, 8
c and 8d are single doors that can open and close 3 doors.
The door opening timing order of each of the three doors is the center door, the right or left door, and the right or left other door. The three doors are closed. The door opening timing is set in the reverse order.

In the above embodiment, three doors can be opened / closed by a single motor, but it is also possible to make it possible to open / close two or four doors. In this case, the number of door drive blocks is also 6 or 3.
In addition to such changes, it is of course possible to change the opening / closing timing, the number of trains and the number of Geneva cars. Also, the design of doors and decorations can be diversified,
It is also possible to use various analog timepieces according to the purpose and use.

[0071]

According to the present invention, the door opening / closing device does not need to be provided with door driving means for each door, and the structure is simplified, so that the manufacturing cost can be reduced. Further, since the opening / closing operation of the doors is performed via the Geneva vehicle and the opening / closing timings of the doors are different from each other, it is possible to make it entertaining.

[Brief description of drawings]

FIG. 1 is a front view showing an entire configuration in one embodiment and showing a state in which all doors are closed.

FIG. 2 is a front view showing an entire configuration in one embodiment and showing a state in which all doors are opened and decorations are exposed.

FIG. 3 is a sectional view taken along the line AA of FIG. 1, showing an entire configuration in one embodiment.

FIG. 4 is a rear view showing the state of the back surface with the back cover removed in one embodiment.

FIG. 5 is a front view showing a door closed state in which a frame and a door drive block are combined.

FIG. 6 is a front view showing a door open state in which a frame and a door drive block are combined.

7A and 7B show a relationship among a frame, a door, and a decoration, where FIG. 7A is a plan view showing a state in which the door is closed; FIG.
FIG. 6 is a plan view showing a state in which a door is open.

FIG. 8 is an explanatory diagram of the operation of the drive lever on the front surface of the door drive block.

FIG. 9 is a rear view of the door drive block.

FIG. 10 is a front view showing an internal configuration in which an upper case and a drive lever are removed from a door drive block.

FIG. 11 is a developed sectional view of a door drive block, (a).
FIG. 4 is a diagram showing a state in which the motor pinion is meshed with the second gear, and FIG. 6 (b) is a diagram showing a state in which the clutch pinion and the first idler are meshed with each other.

12A and 12B show a clutch mechanism of a door drive block, FIG. 12A is an enlarged sectional view showing a state where the clutch is engaged, and FIG. 12B is an enlarged sectional view showing a state where the clutch is disengaged. is there.

FIG. 13 is an explanatory diagram illustrating the operation of the door drive block.

FIG. 14 is an explanatory diagram of a swinging mechanism of a door by a drive lever.

[Description of Reference Signs] 4a-4l Doors 6a-6l Decoration 8 Door opening / closing devices 8a, 8b, 8c, 8d Door drive block 24 Driven levers 30a, 31a, 32a Drive levers 55a, 56a, 57a Geneva wheel 33 (33a, 33b,) 33c, 33d) Motor

Claims (3)

[Claims] 1. A decoration is provided at each hour display position on the hour display section, and a door is provided in front of each decoration to expose the decoration by performing an opening operation at a predetermined time. In a certain analog timepiece, a door opening / closing device for controlling opening / closing of the door is provided with a combination of a plurality of door driving blocks for independently opening / closing the plurality of doors, and each of the door driving blocks has the same plurality of doors. The output levers are arranged side by side on the circumference at equal intervals, and a plurality of output shafts are arranged side by side on the circumference concentric with the arrangement of the doors. An analog timepiece in which the door is opened and closed via a driven lever that is driven. 2. The door drive block according to claim 1, wherein each output shaft of each door drive block is driven through a plurality of Geneva wheels driven by a single motor, and opening and closing timings of the doors are different from each other. An analog clock characterized by the fact that it is present. 3. The door drive block according to claim 1, wherein each door drive block has three doors, and the door opening timing of each of the three doors is one of a door located in the center, right door, and left door. An analog timepiece characterized in that the order of the door located on the right side and the door located on the other of the right side and the left side is set, and the closing timing order thereof is set to the reverse of the opening timing order.