JP2000088974A - Analog clock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for providing a driving means for each door, and to reduce manufacturing costs by providing a device for opening and closing a door where a door driving block for independently opening and closing a plurality of doors is combined. SOLUTION: Doors 4a-4c being provided in a frame 3a being positioned at the upper part of an armored frame can be opened and closed by a single door driving block for composing a device for opening and closing a door, and the device for opening and closing a door can be opened and closed by a plurality of door driving blocks. Also, the door driving blocks have different opening and closing timing between the doors via a plurality of Geneva pinions being driven by a single motor. Each driving block can independently open and close three doors, the door being positioned at a center, the door being positioned at either right or left side, and the door being positioned at the other are successively opened and closed, and the order of the timing for closing the three doors is set to the reverse of the order of the timing for opening the three doors.

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 for decoration or the like at a time display position of an hour on a time display section.

[0002]

2. Description of the Related Art One type of timepiece is an analog timepiece in which a hand is provided at the center of a front dial and hour indication characters are provided outside the turning radius of the hand. There is an analog timepiece provided with a so-called karakuri device having a mechanism in which a decoration such as a doll appears when the doll opens.

The applicant of the present application has previously described, as an analog timepiece equipped with such a mechanism, a rotary drive device such as a decoration in which decorations such as a doll and time display characters are alternately displayed around a dial. It was proposed (Japanese Patent Publication No. 5-24474). In this proposal, decorations and hour indication characters are alternately brought to the front by rotating a rotating body by a driving gear rotating along a fixed gear. By arranging this rotating body around the dial of the timepiece, the door opens to show decorations such as dolls at the hour, and when the door is closed, it changes to the time display characters drawn on the door. Since these decorations are provided at positions corresponding to the time display characters, there are a total of twelve decoration driving devices corresponding thereto.

[0004]

As described above, 12
When each decoration is driven by a single decoration drive, each drive must be provided with a drive motor and a mechanism for driving the decoration and the door, which complicates the configuration and increases the number of parts and the number of assembly steps. Further, there has been a problem that wiring and the like are complicated and expensive.

[0005]

In order to solve the above-mentioned problems, the present invention provides an ornament at a time display position on the hour display on the hour, and a predetermined time in front of each ornament. In an analog timepiece provided with a door that exposes the decoration by performing an opening operation, the door opening / closing device combines a door drive block that opens and closes a plurality of doors independently. Thus, the number of door drive blocks is reduced to reduce the number of parts and the number of assembly steps.

The door driving block changes the opening and closing operation of the door by setting the opening and closing timing between the doors to be shifted through a plurality of general bus stop mechanisms driven by a single motor.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the present invention, a decoration is provided at a time display position of the hour on the time display section, and the decoration is exposed by performing an opening operation at a predetermined time in front of each decoration. In an analog timepiece provided with a door to be opened, a door opening and closing device for controlling opening and closing of the door is characterized in that a plurality of door drive blocks for independently opening and closing a plurality of doors are provided in combination.

The door drive block may have different opening / closing timings between the doors via a plurality of Geneva wheels driven by a single motor.

Further, the door drive block is capable of independently opening and closing three doors. The door opening timing of each of the three doors is located at the center, the door located at one of the right or left, the right or left, It is preferable that the order of closing timing of each of the three doors is set opposite to the order of opening timing.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the front face of an analog timepiece at normal times other than the hour. Twelve hour display surfaces 4a1 to 4l are provided at the time display positions of the hour on the time display portion inside the circular outer frame 1 at the hour.
1 are provided. Each time display surface 4a
Display characters 1 to 41 are displayed when they are composed of 1 to 12 design characters. Behind the doors 4a to 41 shown in FIG. 1, as shown in FIG.
The decorations 6a to 6l imitating a doll are provided on the front surfaces of the decoration mounting plates 5a to 5l fixed to d (see FIGS. 3 to 6).

FIG. 2 shows a state in which the doors 4a to 4l are opened at the hour and decorations 6a to 6l which have been hidden behind the doors appear on the front side. Each decoration 6a-6l
Are made to resemble dolls playing and dancing music, and are attached to the ornamental attachment plates 5a to 5l, respectively.

The doors 4a to 4l, the decorative mounting plates 5a to 5l, and the decorations 6a to 6l are mounted on a single frame by three sets, respectively. They are arranged at positions corresponding to twelve times. Incidentally, 11, 12, 1 located at the top
At this time, the doors 4a, 4b, 4c representing the display characters are attached to one frame 3a (see FIGS. 4 and 5).

FIG. 3 shows the overall structure of the analog timepiece according to the present embodiment. The above-mentioned frame 3a is located at the upper part, and a decoration swinging means 7a for swinging the decoration 6a is mounted on the back side thereof. It is. Of the three decorations 6a, 6b, 6c attached to the frame 3a, the central part (12
The decoration 6a of the position (time position) is designed to make a gesture of shaking the doll body when the door 4a is opened.

The other three frames 3b, 3c, 3
The configuration of d is the same as that described above, and the doll corresponding to the door on which the characters 3, 6, and 9 are respectively provided has a swing mechanism.

FIG. 3 shows the frame 3d located at the lower part in addition to the upper frame 3a as the frame. Therefore, this is not shown because there is no decorative swing means.

At the inner peripheral portion of each of the frames 3a to 3d, there are provided four door drive blocks 8a to 8d constituting a door opening / closing device 8 for controlling opening / closing of doors to be described later (see FIG. 4). . The door opening / closing device 8 is capable of opening / closing each of the doors located therearound by mounting four door driving blocks having the same configuration at predetermined positions.

On the back of the central part of the dial 1a, a watch mechanical body 2 is provided.
The battery holder 10 is provided on the rear side of the battery holder 10 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 portion of the exterior frame 1, and includes a speaker 11 having a sound emission surface facing downward.
Is installed.

A short hand 13 and a long hand 14 are provided in front of the dial 1a so as to be rotatable around the pointer shaft 2a. Further, a front glass 15 is pressed forward by a glass rim 16 at the front. A latch 18 is provided at the upper part of the outer frame 1 to lock the clock on a latch such as a wall.
On the back, a back cover 19 is fixed to the rear part of the exterior frame 1 with screws, and a battery cover 20 is provided at the center of the back cover.
Is provided.

Each of the doors 4a to 4l is
1 and is attached to each of the frames 3a to 3d so as to be able to swing within an angle range of 90 °. Both ends of the rotation center shaft 21 are supported by bearing plates 22, 22 which are detachably attached to the frames 3a to 3d. The hour display surface 4a1 of the door 4a is formed by printing hour display characters on an aluminum thin disk attached to a decorative portion formed at one end of the flange portion 4a2 (see FIG. 6). At the other end of the flanges 4a2, 4a4 of the door 4a, a balancer 23 for suppressing rotation due to its own weight is provided.

The doors 4a, 4b, 4c are connected to the door drive block 8
a, and a driven lever 2 attached to the lower flange portions 4a4, 4b4, 4c4 of the door.
4 and can be swung in a 90 ° angle range.

FIG. 4 shows the configuration on the back side of FIGS. 1 to 3, in which four frames 3a, 3b, 3
The door driving blocks 8a, 8b, 8c, 8d are arranged inside the frames c, 3d and the respective frames, and the timepiece mechanical body 2 and the driving circuit board K are arranged inside the door driving blocks 8a, 8b, 8c, 8d.

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

Each door drive block 8a, 8b, 8c, 8d
The drive motors 33a, 33
b, 33c and 33d are provided. Each of these motors 3
3a, 33b, 33c, 33d are drive circuit boards 34
a, 34b, 34c, 34d. The drive circuit boards 34a, 34b, 34c, 34d receive signals such as time information and hour information from the timepiece machine body 2,
The decoration driving means 7a, 7b, 7c, 7d and the motor 33a,
It functions to drive 33b, 33c, 33d.

FIG. 5 shows three doors 4 a, 4 b, 4 c provided on a frame 3 a located above the exterior frame 1, and each of these doors is a single door constituting a door opening / closing device 8. The door drive block 8a is combined so as to open and close.

The door opening / closing mechanism for opening and closing the center door 4a among the above three doors will be described here. Flanges 4a2 and 4a4 are provided perpendicularly to the paper from the upper and lower positions on the back side of the display surface 4al of the door 4a. At the middle position between the flange portions 4a2 and 4a4, both ends of the rotation center shaft 21 provided so as to bridge between the two flange portions are supported. Both ends of the rotation center shaft 21 are supported by bearing plates 22 fixed to the upper edge of the frame 3a with screws.

The door 4a is swingable within a 90 ° angle range 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 is housed vertically when viewed from the front. It will be in the state that was done.

FIG. 7A shows a state when the door 4a is closed, and shows a state viewed 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. The positioning of the door 4a is performed by the upper flange 4a2.
The projection 4a3 provided on one side of the frame 3 stops when it comes into contact with the side of the rib 3a3 formed inside the frame 3. Since the decoration in the center of the three decorations provided in one frame is a swinging decoration, the decoration driving means 7 is provided on the back side of the frame 3a.
a is attached.

FIG. 7B 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 decorative mounting plate 5a and the decorative 6a are visible 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 configured to abut the rib-like portion 4a2 formed on the frame.

Returning to FIG. 5, the description will be continued. As described above, the door opening / closing device 8 includes four door drive blocks 8a to 8d.
Although the opening and closing operation is performed by 8d, the three doors 4a, 4b, and 4c located at the upper part of the exterior frame 1 can be opened and closed by a single door drive block 8a located at the upper side.

Although the details of the door drive block will be described later, the three output shafts 27a, 27a, 30b are arranged 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. 28a, 29a, and three drive levers 30a, 31a, 32
a is provided. The driven lever 24 described above can open and close each door by swinging by the drive levers 30a, 31a, and 32a.

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

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

FIG. 9 shows the state of the rear surface of the door drive block 8a. The motor 33a is mounted on the rear end of the lower case 26a.
The distal ends of 1a and 32a protrude 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 terminals 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 respectively lead wires 37.
a, 38a, 39a, and 40a, micro switches 61a and 62a for detecting rotation of a built-in wheel train.
(See FIG. 10).

FIG. 10 shows a front state in which the upper case of the door drive block 8a is removed and the above-described drive lever is removed, and FIG. 11 shows a sectional state 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 of the lower case 26a
a1 protrudes into the lower case 26a, and the motor pinion 41a is fixed to the protruding portion. The motor pinion 41a meshes with a second gear 42a1 of a second wheel 42a that is 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 third gear 43a1 of the third wheel 43a. The third pinion 43a2 of the third wheel 43a meshes with a clutch gear 45a constituting the clutch wheel 44a, and the clutch pinion 46a provided concentrically with the clutch gear 45a as shown in FIG. Idler 51
a.

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

The clutch wheel 44a has a clutch shaft 47 supported by a support shaft 26a2 which supports the center wheel & pinion 42a and a bearing hole formed in the inner surface of the upper case 25a.
a, and a ring-shaped hollow portion is formed inside the front side of the clutch pinion 46a. A clutch shaft 47a extends vertically through the boss projecting into the hollow portion, and a clutch spring 48a is inserted into the outer peripheral portion. The tip of the clutch spring 48a is a washer 49a.
Through the E-ring 50a. Therefore, the lower end of the clutch pinion 46a is in elastic contact with the upper surface of the clutch gear 45a. The knurled part 45 of each car has a knurl 45
a2 and 46a2 are formed radially, and FIG.
In this case, the knurled portions of both are engaged with each other.

On the other hand, in a state where a load equal to or more than a predetermined value acts on the clutch pinion 46a, the clutch gear 45a
Rotates, the clutch pinion 46a rides on the knurled portion and floats against the resistance due to the spring force of the clutch spring 48a, and the two knurled portions are disengaged from each other as shown in FIG. Clutch gear 4
5a can be idle. At this time, an audible impact sound is generated between the knurls, and this serves to warn of the occurrence of an excessive load as an abnormal sound.

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 an angle range corresponding to a cutout portion of the guide portion (see FIG. 10).

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

Since the rotation of the clutch pinion 46a is in a single row, the first idler 51a, the first feed wheel 52a, the second idler 53a, and the second feed wheel 54 are provided.
It can be transmitted in the order of a. Therefore, the first feed wheel 52
a and the second feed wheel 54a have the same direction and the same rotational speed.

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

A first Geneva wheel 55a is mounted on the first output shaft 27a located at the center of the output shafts so as to be integrally rotatable therewith. A second Geneva wheel 56a is attached to the lower second output shaft 28a so as to be integrally rotatable. A third Geneva wheel 57a is similarly attached to the third output shaft 29a located further above.

The tip of each of the output shafts 27a, 28a, 29a protrudes from the front surface of the upper case 25a, and the protruding drive lever is fixed to this protruding portion. That is, the first drive lever 30a is provided on the first output shaft 27a,
A second drive lever 31a is fixed to the second output shaft 28a, and a third drive lever 32a is fixed to the third output shaft 29a.

To attach each drive lever to the output shaft, a mounting hole provided at the center of each swing is inserted into each output shaft, and an E-ring 58a is attached to a step formed at the tip of the output shaft. , 59a, 60a so as not to fall off.

As shown in FIG. 10, each Geneva wheel has a guide portion having a shape similar to two blades formed on the outer periphery of a disk, and a pin 52a of a feed wheel is provided between these guide portions.
Grooves 55a1, 56a1, 57 into which 2, 54a2 can enter.
a1 is provided. The outer peripheral portion of each guide portion is formed in an arc-shaped concave portion with which the guide portions 52a3 and 54a3 of the feed wheel can abut. Accordingly, the guide wheel 52a3, 54a3 of the feed wheel can rotate while the feed wheel is rotating, and the Geneva wheel can stand by in a rest state.

At a predetermined position on the outer peripheral portion on the back side of the first feed wheel 52a, a detection projection 52a4 for a micro switch is provided. In addition, as shown in FIG. 11, the rotation directions of the motor 33a and the first feed wheel 52a are opposite to each other.

Two micro switches 61a and 62a are fixed on the lower case 26a near 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 projection 52a4. The other microswitch 62a has a stop pin 62a2 with a protrusion 52a4.
When the motor 33 is rotating in reverse,
It has a function to stop the rotation of a. These detection signals are connected to the leads 37a, 38a, 39a,
The signal is output to the drive circuit board 34a via the drive circuit 40a (FIG. 9).
), The rotation of the motor 33a can be controlled.

Next, the operation of the drive lever by the general bus stop mechanism will be described. As shown in FIG. 11, each drive lever rotates integrally with each Geneva wheel 55a, 56a, 57a via each output shaft 27a, 28a, 29a, and each of these Geneva wheels is a first feed wheel. An intermittent swinging motion is performed by the pin 52a2 and 54a2 of the second feed wheel 54a and 52a. Also, two feed wheels 52a, 54
Since a is linked by the second idler 53a, it 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 in a closed state (see FIG. 5). When the time comes to an hour in this state, the control board K (see FIG. 4) is transferred from the timepiece mechanical body 2.
The control signal of the motor 33a is sent to the drive circuit board 34a from this, and the motor 33
A starts (see FIG. 9) and the melody starts playing.

When the motor 33a starts (reverse rotation), the motor 33a shown in FIG.
0, the first feed wheel 52a and the second feed wheel 54
a are both rotated clockwise. As a result, the pin 52a2 of the first feed wheel 52a enters the groove 55a1 of the first Geneva wheel 55a, and starts to slowly rotate the Geneva wheel in the counterclockwise direction. At this time, the second Geneva wheel 56a
The third Geneva wheel 57a is stopped because no pin has entered the groove. At this time, the guide portions 52a3 and 54a3 of each feed wheel maintain a rotating state in a state of contact with the arc-shaped concave portion of the Geneva wheel.

FIG. 13 shows the relationship between two feed wheels 52a, 54a and three Geneva wheels 55a, 56a, 57a in the order of operation. FIG. 7A shows a state in which both feed wheels 52a and 54a are rotating clockwise following FIG.

In this state, since the pin 52a2 of the first feed wheel 52a has reached 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 state, only the center door 4a of the three doors 4a, 4b, and 4c arranged side by side starts to open.

FIG. 6B shows the groove of the second Geneva wheel 56a in which the rotation of the first Geneva wheel 55a has been completed and the stopped state, and the pin 54a2 of the second feed wheel 54a is located on the left side. The state where the vehicle has entered 56a1 is shown.
During this period, the first Geneva wheel is in a stopped state, and the third Geneva wheel 57a is continuously stopped from the initial state.

FIG. 9C 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 started 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 end of rotation.

FIG. 9D shows a state in which the rotation of the third Geneva wheel 57a has been completed. Therefore, all the doors are open (see FIG. 6).

When the first feed wheel 52a continues to rotate clockwise due to the rotation of the motor 33a, the projection 52a4 (see FIG. 10) provided on the rear side pushes down the stop pin 62a1 of the right micro switch 62a. By outputting a motor stop signal, the motor 33
a is stopped.

The twelve doors 4a to 4l are mounted on each of the four frames 3a, 3b, 3c, 3d by three sets, and when the motor 33a of the door drive block 8a stops, the other doors 4a to 41 are next. The motors 33b, 33c, 33d of the drive blocks 8b, 8c, 8d start rotating sequentially in a predetermined drive order (for example, in the order of 33b, 33c, 33d), and each Geneva wheel of each door drive block is moved to the first position. The motors are rotated in the order of the first Geneva vehicle, the second Geneva vehicle, and the third Geneva vehicle, and the motors are stopped with the doors corresponding to the respective Geneva vehicles opened after the rotation of the third Geneva vehicle is completed. Eventually, the last motor 33d stops, whereby all the doors 4a to 41 are opened.

While the motors 33a, 33b, 33c, and 33d are stopped, the decorations imitating the dolls provided at the display positions at 12, 3, 6, and 9 o'clock swing and the speaker 1
The melody continues to flow from 1 (see FIG. 3).

After a lapse of a predetermined time, a signal from the control board K to each of the drive circuit boards 34a, 34b, 34c, 34d causes the motor to rotate in the reverse direction with respect to the direction at the time of starting. Is output by the motor 33
a, 33b, 33c, and 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 description of the other door drive blocks 8b, 8c, 8d will be omitted. When the reverse rotation of the motors 33d, 34c, and 34b is sequentially completed, and the motor 33a starts to rotate in reverse, each Geneva vehicle rotates in the reverse direction in the order of (d) to (a) in 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 swinging decoration at the center has the longest exposure time.

In the state where all the Geneva wheels are stopped and all the doors are closed, the projections 5 of the first feed wheel
2a4 depresses the stop pin 61a1 of the other micro switch 61a to stop the motor, the melody is also stopped, and the state returns to the initial state shown in FIG.

Next, a door opening / closing mechanism using the drive lever will be described. It has already been described that each door is closed when the tip of the drive lever is located to the right, starts to open as it moves to the left, and opens when it reaches the left end (FIGS. 5 and 6). reference). FIG. 14 shows the positional relationship between the drive lever and the door at this time. FIG.
Only the center door in FIGS. 5 and 6 is shown,
The same applies to other doors.

The driven lever 24 swings the door 4a by interlocking with the drive lever 30a, and the driven lever 24 is provided on the side surface of the lower flange portion 4a4 of the door.
(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 protruding at an intermediate position engages with an engagement hole (not shown) of the lower flange portion 4a4, so that a predetermined torque is applied. It does not deviate from the range. In a range where the driven lever 24 protrudes from the lower flange portion 4a4, a slit 24a with which the tip of the drive lever 30a can be engaged is provided.

FIG. 11A shows a state in which the drive lever 30a is inclined rightward. At this time, as shown in FIG. 10B, the door 4a covers the front of the decoration 6a. It is located in front of the decoration 6a (see FIG. 7A).

FIG. 10C shows a state in which the drive lever 30a has been rotated in the intermediate position, that is, counterclockwise by 30 °. At this time, the door 4a is in a state of being inclined at 45 degrees as shown in FIG.

When the drive lever 30a further rotates in the counterclockwise direction and reaches the left side as shown in FIG. 7E, the door 4a moves relative to the decoration 6a as shown in FIG. It is located at a right angle and is fully open. Of course, when the door closes, it returns to the original position through the reverse process.

As described above, the door drive blocks 8a, 8b,
8c, 8d are single motors 33a, 33b, 33c, 3
A plurality of Geneva wheels 55a, 56 driven by 3d
The opening / closing timings between the doors are made different through a and 57a. Each door drive block 8a, 8b, 8
c and 8d are those which can open and close three doors singly.
The opening timing order of each of the three doors is the order of the door located in the center, the door located on one of the right or left, and the door located on the other right or left, and the closing timing order of the three doors is It is set in the reverse order of the door opening timing.

In the above embodiment, three doors can be opened and closed by a single motor. However, it is also possible to configure such that two or four doors can be opened and closed. In this case, the number of door drive blocks is also six or three.
In addition to the above, it goes without saying that the opening / closing timing, the number of wheel trains and the number of Geneva vehicles are also changed. Also, the design of the doors and decorations can be diversified,
Various analog watches can be used according to the purpose and application.

[0071]

According to the present invention, it is not necessary to provide a door driving means for each door in the door opening / closing device, and the configuration is simplified, so that the manufacturing cost can be reduced. Further, since the opening and closing operations of the doors are performed via a Geneva wheel, so that the opening and closing timings between the doors are different from each other, the doors can be rich in interest.

[Brief description of the drawings]

FIG. 1 is a front view showing an entire configuration according to an embodiment, showing a state in which all doors are closed.

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

FIG. 3 is a cross-sectional view taken along the line AA of FIG. 1, showing an overall 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 closed state in which a frame and a door drive block are combined.

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

7A and 7B are diagrams showing a relationship between a frame, a door, and a decoration, wherein FIG. 7A is a plan view showing a state in which the door is closed, and FIG.
FIG. 4 is a plan view showing a state where a door is open.

FIG. 8 is an explanatory diagram of an operation of a drive lever on a front surface of a 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 an exploded sectional view of the door drive block, and FIG.
FIG. 4 is a diagram showing a state in which the motor pinion is engaged with the second gear, and FIG. 4B is a diagram showing a state in which the clutch pinion and the first idler are engaged.

FIGS. 12A and 12B are enlarged sectional views showing a clutch mechanism of the door drive block, in which FIG. 12A is an enlarged sectional view showing a state in which the clutch is engaged, and FIG. 12B is an enlarged sectional view showing a state in which 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 mechanism for swinging a door by a drive lever.

[Explanation of symbols]

4a-4l Door 6a-6l Decoration 8 Door opening / closing device 8a, 8b, 8c, 8d Door drive block 55a, 56a, 57a Geneva car 33 (33a, 33b, 33c, 33d) Motor

Claims (3)

[Claims] An ornament is provided at each time display position of the hour on the time display unit, and a door is provided in front of each of the ornaments to open the ornament by performing an opening operation at a predetermined time. In an analog timepiece, the door opening / closing device for controlling the opening / closing of the door is provided with a combination of a plurality of door drive blocks for independently opening and closing a plurality of the doors. 2. An analog according to claim 1, wherein the door drive block has different opening / closing timings between the respective doors via a plurality of Geneva wheels driven by a single motor. clock. 3. The door driving block according to claim 1, wherein the door drive block is capable of opening and closing three of the doors, and the opening timing of each of the three doors is determined by a door located at the center,
The order of the doors located on one of the right and left sides and the door located on the other side of the right or left is that the order of closing timing of each of the three doors is set opposite to the order of opening timing. Analog clock that features.