JPH03194490A - Puppet clock - Google Patents

Abstract

PURPOSE:To impart movement to the ornaments themselves without requiring another driving source by rotating a rotary disk according to the rotation of a rotating body mounted with a driving motor and moving the ornaments by the engagement of a cam and a follower part when the rotating body rotates. CONSTITUTION:An ornament surface 72 appears gradually onto a front surface when the supply of the current to the driving motor 10 continues and the rotating body 7 rotates clockwise. A pinion 16b formed integrally to the rotary disk 16 meshes with the tooth part 14b of a stationary gear and rotates clockwise as shown by an arrow and, therefore, the pinion 16b with which the inside end of a spring 17 is detained to a detaining pawl 16d meshes with the stationary gear 14 and rotates clockwise. The inside end of the spring 17 is detained to the detaining paw1 16d and the spring is successively wound up and tightened. A cam 16c comes simultaneously into contact with a driven part 8a at every one rotation of the rotary disk and the ornament 8 moves as if a doll oscillates its body after making oscilatory motion around the other end 8b as a fulcrum.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a mechanical clock in which a decoration such as a doll appears on the front when the clock strikes the hour, for example.

[Prior art] Traditionally, typical mechanical clocks include cuckoo clocks in which the front door opens on the hour and a pigeon housed in a frame appears and makes a chirping sound, and music boxes. There are known dolls that appear in front of the doll in time with the melody played by the doll. As the drive device for the decorations in these series of mechanical clocks, rotating gears and fixed gears are used, and large ones using air cylinders and other limit switches are known.

[Problems to be solved] In these conventional examples, the ratio of the size of the drive device to the part that actually moves is large, and it is necessary to have a configuration that hides the drive means provided outside the movable part. It had no choice but to become larger.

In addition, if you try to give a unique movement to a decoration, etc., you will need a drive source and control means separate from the drive device described above, which increases the number of parts and makes the structure complicated. This is the cause of the increase in

The object of the present invention is to use the same driving source as the rotating body and to
The purpose of this invention is to make it possible to give a different movement to the decorative part by making it possible to make a karakuri clock at a low cost.

"Means for Solving the Problems" In order to achieve the above object, the mechanical clock of the present invention includes a rotating body provided with decorations, and a fixed stationary piece installed concentrically with the central axis of rotation of the rotating body. A decoration comprising a gear, a drive motor mounted on a rotating body, a gear that meshes with the drive gear of the drive motor, and a pinion that meshes with a fixed gear and is formed integrally with the gear. The rotary drive device further includes a small gear meshing with the fixed gear, a cam provided on a rotating disk driven by the small gear, and a cam provided on the rotating disk. A decorative drive mechanism is provided that includes the above-mentioned cam and a driven portion that engages with the cam.

Furthermore, as a drive mechanism for the decoration, a mainspring is provided, one end of which is supported by the support plate of the -F moving motor, and the other end of which is latched to a latching pawl that rotates concentrically with the rotating disk;
This mainspring is wound tightly when the ornament moves toward the front, and the small gear and fixed gear are disengaged when the ornament is positioned toward the front, causing the rotating disk to reverse.

When the rotating body equipped with the action drive motor rotates, the rotating disc rotates accordingly, and the decoration is moved by the engagement of the cam and the driven part.For those equipped with a mainspring, the decoration is placed on the front. Once in position, the fixed gear and small gear are disengaged, the rotating disk is reversed by the restoring force of the mainspring, and each rotation of the rotating disk causes the cam to lift up the driven part of the ornament, and the ornament is placed in front of the T device. Move the decorations even when you are in the room.

[Example] An example of the present invention will be described below with reference to the drawings.

As shown in FIG. 7, the IF of the mechanical clock of the present invention is such that the numbers for displaying from 1 o'clock to 12 o'clock are 12 as will be described later.
It is formed in each of the rotation blocks. Each of these rotating blocks 1 is attached to an exterior frame 2, and a time display screen 7, which will be described later.
It is set at a position where the number above 1 and the hour display on the clock match. An hour hand 4 and a minute hand 5 are provided in front of the dial 3 at the center, and are rotationally driven by a clock mechanical body (not shown) provided on the back of the dial 3. At this time, display screen 7
The surface adjacent to the rotating block 1 is a decorative surface 72 on which decorations made of dolls and the like are attached as described later, and when the clock strikes the hour as shown in FIG. 8, the rotating block 1 rotates and these decorations 72 are It is set to face the front.

As shown in Figures 1 to 5, the rotating block 1 has a rotating body 7 rotatably supported on a mounting body 6, and the rotating block is fixed to the exterior frame 2 (see Figure 8) with a piece 6a. be done. The rotating body 7 has a substantially triangular planar shape,
One of the surfaces is a flat time display surface 71 on which numbers indicating the hours are formed. The surface next to it is a decorative surface 72 having an arcuate surface. This decorative surface 72 is provided with a decoration 8 consisting of a doll such as a clown. The remaining surfaces are open. The rotating body 7 is rotatably supported by the mounting body 6 by a rotation center shaft 9 that vertically passes through the center.

A drive motor 10 serving as a drive source for the rotating body is housed inside the rotating body 7 with a support plate 11 interposed therebetween.

The drive motor 10 is supplied with drive current in response to an hourly signal from a timepiece mechanism (not shown), and the supply of drive current is continued for the time necessary to rotate the rotating body 7 by a predetermined rotation angle. , after which the supply of current is stopped.

As clearly shown in FIG. 5, the shaft 10a of the drive motor 10
is provided with a drive gear 12, and the lower end of this drive gear 12 is engaged with an opening lower C provided on the bottom surface of the rotating body 7.

A shaft 11a is integrally provided vertically on the support plate 11.
This shaft passes through an open lower d formed on the bottom surface of the rotating body 7 and projects in the F direction. A gear 13 is rotatably fitted onto the shaft 11a. The gear 13 meshes with the drive gear 12, and a pinion 13a is provided integrally with the gear 13.
is in a state of protruding below the rotating body 7.

A fixed gear 14 is fixedly provided on the mounting body 6 at its bottom surface concentrically with the rotation center axis 9. The fixed gear 14 is provided with a center hole 14a through which the rotation center shaft 9 passes, and a tooth portion 14b is formed on an arcuate surface with a center frj of about 180 degrees around the center hole 14a. A mounting portion 14c of a stopper 15, which will be described later, is integrally provided in the direction opposite to the tooth portion 14b, and other unnecessary portions are cut out.

A binion 13a meshes with the tooth portion 14b.

A stopper 15 made of a ring-shaped elastic body is fixed to the mounting portion 14c of the fixed gear 14 via a fitting 15a. Further, on the lower surface of the rotating body 7, a stopper 15 is engaged at a position with an opening angle of 12o0 about the rotation center axis 9 to stop the rotation of the rotating body 7! 1. An engaging protrusion that stops? a and 7b are formed. When each of the engaging protrusions 7a and 7b engages with the stopper 15, the time display surface 71 or the decoration 7
The positions of the two engaging protrusions are set so that the engaging protrusions 2 face the front.

Furthermore, inside the rotating body 7, there is a rotating disk 1 for swinging the decoration 8.
6 is provided. A support shaft 16a integrally formed with the rotating disk 16 penetrates the rotating body 7 and projects downward, and a small gear 16b is provided at its lower end. The small gear 16b meshes with the southern part 14b of the fixed gear 14.

A cam 16c is formed on the upper surface of the rotating disk 16. The cam 16c is a protrusion projecting in the shape of a gentle mountain. .

A driven portion 8a formed by extending the lower end of the decoration 8 is located on the rotation locus of the cam 16c, and the driven portion 8a of the decoration can be engaged with the cam 16c by rotation of the rotating disk 16.

As shown in FIG. 6, a locking claw 16d that rotates together with the rotating disk 15 is provided near the center of the rotating disk 16. The locking pawl 16d can lock either the outer end or the inner end of the mainspring 17, which is supported by a grip portion 11b formed on the lower surface of the support plate 11. Therefore, when the rotating disk 16 rotates clockwise, the mainspring is tightened by the locking pawl 16d, and when the small gear 16b and the fixed gear 14 are disengaged from each other, the tightened mainspring 17 causes the rotating disk 16 to be tightened. is reversed. When the rotating disk 16 rotates counterclockwise with the mainspring 17 not being wound tightly, the inner end of the mainspring 17 and the locking pawl 16d are disengaged, and the rotation of the rotating disk 16 causes no effect on the mainspring 17. It has no effect.

Next, the operation of the present invention will be explained.

As shown in FIG. 7, when the hands 4 and 5 are displaying a time other than the hour, the hour display surface 71 of all rotating blocks 1 is located in front. At this time, the state of the rotating body 7 is as shown in the first diagram, where the straight part on which the hour display surface 71 is provided is in the front (bottom of the drawing) j), and one of the engaging protrusions 7a is engaged with the stopper 15. There is. At this time, the decoration 8 is hidden inside the mounting body 6, and the mainspring 17 is in a relaxed state. l: -,.

ing.

When time passes and the time indicates the hour, such as 3 o'clock, as shown in Figure 8, the drive motor 1o rotates in response to a signal output from the clock mechanism (not shown), and this rotation is caused by the drive gear. 12 to rotate gear 13 and pinion 13a. The binion 13a rotates while moving as a planetary tooth width around the rotation center axis 9, and moves along the tooth portion 14b of the fixed gear. Accompanying this, the rotating body 7 constituting the arm of the planetary gear on which the gear 13 is mounted is angularly displaced by a rotation angle corresponding to this movement, and the engagement protrusion 7a moves away from the stopper 15.

When the supply of current to the drive motor 10 continues and the rotating body 7 rotates clockwise as shown in the second figure, the decorative surface 7
2 gradually appears in front. At this time, the rotary disk 16 has an integrally formed small gear 16b that is connected to the tooth portion 1 of the fixed gear.
4b and rotate clockwise as shown by the arrow, the inner end of the mainspring 17 is engaged with the locking pawl 16d and wound tightly. At the same time, the cam 16C on the rotating disk 16
contacts the driven part 8a every rotation of the rotary disk, and lifts the decoration 8 via this driven part, so the decoration 8 swings about the other end 8b, which is its supporting part, as a fulcrum, as shown in the fifth figure. It makes dynamic movements, as if it were a doll shaking its body.

When the rotary block 1 rotates further and the decoration 72 is positioned in front, the other engaging protrusion 7b comes into contact with the stopper 15, as shown in the third figure, and the rotation of the rotating body 7 is stopped. At the same time, the supply of current to the drive motor 10 is stopped after a predetermined period of time has elapsed, so that the static state 11- of the ornament 8 facing forward is maintained as shown in the fourth figure. At this time, the small gear 16b of the rotary disk 16 has come off the teeth 14b of the fixed gear, and the restoring force of the mainspring 17 causes the rotary disk 16 to reverse as shown by the arrow, and for each rotation, the cam
6c lifts the driven part 8a and makes the movement of the decoration 8 more active.

After a predetermined period of time has elapsed with the decoration 8 facing forward, a drive current in the reverse rotation direction is supplied to the drive motor 10 again. As a result, the driving gear 12 is reversed, and the pinion 13a returns from the position shown in the third figure to the position shown in the first figure from the right to the left above the southern part 14b of the fixed gear 14. During this return trip,
The small gear 16b also moves while rotating on the southern part 14b,
Since the inner end of the mainspring 17 is disengaged from the locking pawl 16d, only the rotating disk 16 rotates idly and returns to the position shown in the first figure, and when the engaging protrusion 7a abuts the stopper 15, the rotating body 7 is prevented from rotating, and almost at the same time, the supply of drive current is stopped and the drive motor 10 is stopped.

In addition to the above-described embodiment, the present invention does not provide the mainspring 17 on the rotating disk 16, and even if the decoration 72 is positioned in front, the small gear 16b of the rotating disk does not come off from the teeth 14b of the fixed gear. As shown in the figure, the fixed gear may have long teeth. In this case, the rotating disk 16 rotates throughout the rotation of the rotating body 7, and the rotating disk 16 always rotates during the process in which the decoration 72 appears and in the process in which it is hidden. Decoration 8 is moved by cam 16C. By changing the shape of the cam, the ornament 8 can be given a movement different from that of the previous embodiment.

Furthermore, in the embodiment, when it is on the hour, all the rotating blocks other than the hour display song corresponding to the number corresponding to that time rotate and decorations appear on the surface, but this is not limited to this, and decorations can be selected as appropriate. A rotating block may also be used. Note that the decorations are not limited to dolls as in the embodiments, but may also adopt animals or other objects.

[Effects] As explained above, the present invention can rotationally drive decorations etc. with a simple configuration, and furthermore, in conjunction with this rotation drive device, rotates a rotating disk equipped with a cam that moves the decoration itself. Therefore, it is possible to give movement to the decoration itself without requiring a separate driving source. Furthermore, since a mainspring is provided in the driving mechanism of the decoration, the movement of the decoration can be made more complex and interesting, and it is possible to provide a mechanical clock at a low cost.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention.
The figure is a plan view of the rotating block showing the rotating body in a specific position, Figure 4 is a front view of the rotating block showing the decorative surface positioned in front, and Figure 5 is the inside of the rotating block. Developed sectional view, Figure 6 is an enlarged plan view showing the locking state of the locking pawl and mainspring, Figure 7 is a front view showing the pointer indicating a time other than the hour, and Figure 8 is the pointer. FIG. 3 is a front view showing a state in which the time is on the hour. 7. Rotating body, 8. Decoration, 8a. Driven part, 9. Rotation center shaft, 10. Drive motor, 11. Support plate, 12. Drive gear, 13. Gear, 14. Fixed gear, 16. ・Rotating disk, 16c. ・Cam, 17. ・Spring. 13a ・ 16b φ 16d ・・Pinion, ・Small gear, ・Latching pawl, and above

Claims (2)

[Claims] (1) A rotating body provided with decorations, a fixed gear installed concentrically with the rotation center axis of the rotating body, a drive motor mounted on the rotating body, and a drive gear of the drive motor. A decorative rotary drive device includes a gear that meshes with the fixed gear, and a pinion that meshes with the fixed gear and is formed integrally with the gear, and the rotary drive device further includes a small gear that meshes with the fixed gear. and a decoration drive mechanism including a cam provided on a rotating disk driven by the small gear, and a driven part provided on the decoration and engaged with the cam. A mechanical clock. (2) In claim 1, the drive mechanism for the decoration has one end supported by the support plate of the drive motor, and the other end latched to a latching pawl that rotates concentrically with the rotating disk. A mainspring is provided, and the mainspring is wound tightly when the decoration moves toward the front, and the pinion gear and the fixed gear are disengaged when the decoration is positioned toward the front, thereby reversing the rotating disk. A mechanical clock with one characteristic.