JP2936390B2 - Movable decorative drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable ornament driving device used for a timepiece and the like.

[0002]

2. Description of the Related Art A timepiece having a movable ornament has, for example, two movable dials movable in opposite directions to each other. The movable dial is opened at every hour, and the movable ornament appears in an opening. (Doll) performs a series of operations (Japanese Patent Publication No. 5-75997, JP-A-6-222161)
No.). Alternatively, a rotating dial is provided on the back side of the fixed dial, and a rotating dial provided with a movable ornament (doll) is provided on the rotating dial. ) Shows movement (Japanese Utility Model Laid-Open No. 5-23183). Alternatively, a driving device for a rotary decoration that constantly rotates the decoration using a step motor without using a balance spring (for example, Japanese Patent Application Laid-Open No. H4-24-2).
No. 13095) is also known.

[0003]

The above-mentioned prior art is provided with two movable dials, and at every hour, the movable dial is opened, and a movable ornament (doll) appearing at the opening is a series of ones. In operation, a driving source (motor) for driving the movable dial and another driving source (motor) for driving the movable decoration (doll) are separately provided.
However, there is a problem that the configuration is complicated and expensive. Also, in the case where the movable decoration (doll) shows a movement as the rotary dial rotates, only one drive source (motor) is needed, but the movable decoration (doll) only swings the arm left and right. However, there is a problem of lack of interest. Furthermore, in a drive device of a rotary decoration that constantly rotates a decoration using a step motor, the decoration simply rotates in the circumferential direction at all times, and the decoration itself does not move in a special manner. There is a problem of lack.

[0004]

In order to solve the above-mentioned problems, according to the present invention, a wheel which contacts a fixed surface is rotatably provided on a rotating decoration, and further, the wheel is displaced in conjunction with the rotation of the wheel. Movable member is provided. This makes it possible to obtain a highly interesting movement using one driving means.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a decoration is mounted on a drive shaft which is driven to rotate by a driving means via mounting means, and the decoration is rotatably provided and abuts on a fixed surface. A wheel and a movable member interlocked with the rotation of the wheel are provided.

[0006] The wheel is rotatably attached to the lower part of the decoration
Fixed to a projection projecting from the decoration of the first rotating shaft
And the lower end of the lower leg is fixed to the protruding end of the first rotating shaft.
The upper end of the upper leg is rotatably mounted in the middle of the decoration.
At the protruding end protruding from the decoration of the second rotating shaft attached
The upper end of the lower leg and the lower end of the upper leg swing
Arm is rotatably attached to the shoulder of the ornament
Fixed to the protruding end protruding from the decoration of the third rotating shaft
And protrudingly formed on the upper surface of the second rotating shaft.
A slide protruding from the lower surface of the rod and the third rotary shaft
The ida piece is connected to the arm so that the arm can swing.

[0007] Preferably, the fixed surface is formed on a cam surface formed along the rotation locus of the wheel, and the decoration is mounted to be swingable with respect to the drive shaft. More preferably, one of the attachment means and the decoration is provided with an engagement recess, and the other is provided with an engagement projection which is detachably engaged with the engagement recess.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a decoration driving movement 2, which is a driving means of a movable decoration described later, is mounted via a screw (not shown) in a hollow interior of a support case 1 having a hollow cylindrical shape. . The drive shaft 2a protruding from the movement 2 penetrates through the center of the upper surface of the support case 1 and protrudes upward.
An attachment arm 4 as attachment means for the movable ornament is fixed.

As shown in FIGS. 1 and 2, a movable ornament 5 imitating a doll on a unicycle is attached to a mounting arm 4 so as to be detachable and swingable. As shown in FIGS. 1 and 3, the distal end (right end in FIG. 1) of the mounting arm 4 has semicircular engagement recesses 4a, 4a formed at both ends thereof. An elastically deformable snap piece 4b having a triangular claw at the lower end is formed. At the lower end (the lower left end in FIG. 1) of the movable decoration 5, a concave portion 5a having a side surface and a bottom surface opening is formed.
A cylindrical engaging piece 5b having the same diameter as the recess 4a is formed. Therefore, when the ornament 5 is attached to the attachment arm 4, when the engagement piece 5 b is inserted from above the engagement recesses 4 a, 4 a of the attachment arm 4, both ends of the engagement piece 5 b are inserted into the engagement recesses 4 a, 4 a. Engaging and engaging piece 5
When the central portion of b pushes the snap piece 4b backward, and enters the lower surface of the triangular claw, the snap piece 4b returns to its original position, whereby the engagement piece 5b is snap-coupled. When the engaging piece 5b is pulled out above the mounting arm 4, the snap connection between the engaging piece 5b and the snap piece 4b is released, and the decoration 5 can be removed from the mounting arm 4.

With such a configuration, the movable decoration 5
Is detachable from the mounting arm 4 and, in the mounted state, is swingable with respect to the mounting arm 4 about the engagement piece 5b at the lower end (lower left end in FIG. 1) (FIG. 1). 5). Therefore, at the time of packing and transporting the entire apparatus, the movable ornament 5 may be removed from the mounting arm 4, so that it is not necessary to provide a special locking means for fixing the movable ornament 5.

Next, a specific configuration of the movable ornament 5 will be described. As shown in FIGS. 1 and 2, a shaft 6 as a first rotating shaft is rotatably attached to a lower portion of the movable ornament 5, and a wheel 7 is fixed to a protruding portion of the shaft 6. The wheel 7 includes a circular wheel 7a and a rubber tire 7b mounted on the outer periphery of the wheel 7a. The rubber tire 7b is in contact with the upper surface 1a of the support case 1. In addition, as shown in FIG.
Is formed with a cam surface 1b composed of a plurality of irregularities along the rotation locus of the wheel 7. Therefore, when the movable ornament 5 rotates on the upper surface 1a of the support case 1 with the rotation of the drive shaft 2a, the wheel 7 moves up and down while rotating following the unevenness of the cam surface 1b. Part (Fig. 1
It rotates while swinging left and right with respect to the mounting arm 4 about the engagement piece 5b (lower left end) (see FIG. 5).

As shown in FIGS. 1 and 2, a shaft 8 serving as a second rotating shaft is rotatably mounted on the middle part of the movable ornament 5, and a protruding end of the shaft 8 (right end in FIG. 1). , The upper end of the upper leg 9 is fixed. An upper end of a lower leg 10 is swingably connected to a lower end of the upper leg 9.
Is pivotally connected to an L-shaped crank 11 fixed to a protruding end of the shaft 6 (the right end in FIG. 1).

A third rotating shaft is provided on the shoulder of the movable ornament 5.
A shaft 12 is rotatably mounted, and both ends of the shaft 12 protrude from the body of the movable ornament 5. A right arm 13 and a left arm 14 are fixed to each protruding end, respectively. At the center of the lower surface of the shaft 12, an L-shaped slider piece 12a is formed so as to protrude, and a tip (lower end) of the slider piece 12a is formed.
Is slidably fitted in a slot 8b of a rod 8a protruding from the center of the upper surface of the shaft 8.

With such a configuration, the rotation of the wheels 7 is transmitted through the crank 11 and the upper leg 9 and the lower leg 1 are rotated.
0 is displaced, and the rod 8a and the slider piece 12
The two arms 13 and 14 are shown to swing back and forth by being transmitted through the “a” (see FIG. 2).

Next, the operation will be described. In response to an hour signal from a timepiece body (not shown), the decoration driving movement 2 is activated, and the mounting arm 4 and the movable decoration 5 are integrally rotated clockwise in FIG. 4 via the drive shaft 2a.
The wheels 7 follow the unevenness of the cam surface 1b on the upper surface of the support case 1 with the rotational movement of the movable ornament 5, so that the movable ornament 5
As shown in FIG. 5, is rotated about the engagement piece 5b at the lower end of the mounting arm 4 while swinging left and right with respect to the mounting arm 4. Further, as shown in FIG. 2, the wheel 7 rotates counterclockwise in FIG. 2, and this rotational motion is transmitted through the crank 11, displacing the upper leg 9 and the lower leg 10, and the shaft 8 swings in the front-rear direction. I do. The swinging motion of the shaft 8 is transmitted through the rod 8a and the slider piece 12a, and the arms 13 and 14 swing in the front-back direction. Therefore, as if the doll moves forward by rowing a unicycle while balancing with both arms, the doll will show a realistic and rich movement. When the movable ornament 5 rotates clockwise in FIG. 4 and a predetermined time elapses, a stop signal is sent to the ornament driving movement 2, and the movement of the movable ornament 5 stops.

In the present embodiment, a doll riding on a unicycle has been described as an example of the movable ornament 5; however, the present invention is not limited to this and may be a two-wheeled or four-wheeled vehicle. Also, as the movable members that are linked to the rotation of the wheels, the legs 9 and 10 and the arms 13 and 14 that swing back and forth of the doll have been described as an example. May be configured. Also, by forming a cam surface 1b consisting of a plurality of irregularities on the upper surface 1a of the support case 1 along the rotation trajectory of the wheel 7, the movable decoration 5 is made swingable with respect to the mounting arm 4. Although the example has been described in which the movable ornament 5 rotates and swings right and left, the upper surface 1a of the support case 1 may be a flat surface.

[0017]

According to the present invention, a decoration is attached to a drive shaft which is rotated by the driving means via an attachment means, and the decoration is rotatably provided and a wheel which abuts on a fixed surface. And a movable member interlocked with the rotation of the wheel, so that one drive means can give the decoration a rotary motion and another motion interlocked with it, and the simple structure makes it fun and dreamy Ru can be provided at a low cost to the drive of the decoration.

If a cam surface is formed on the upper surface of the support case along the rotation locus of the wheel, and the movable ornament is swingably attached to the mounting arm, the ornament can be given a more varied movement. It is Ru can. If one of the attachment means and the decoration is provided with an engagement recess, and the other is provided with an engagement projection which is removably engaged with the engagement recess, the decoration can be removed from the attachment means during packaging and transport of the entire apparatus. it is sufficient to remove, need not name to provide a special locking means for fixing the decoration.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a drive device for a movable ornament according to the present invention.

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

FIG. 3 is an enlarged perspective view of a main part.

FIG. 4 is a plan view of a support case.

FIG. 5 is a front view illustrating the operation of the movable ornament.

[Explanation of symbols]

 1a Fixed surface (upper surface of support case) 1b Cam surface 2 Drive means 2a Drive shaft 4 Mounting means (mounting arm) 4a Engagement concave part 5 Decoration (movable decoration) 5b Engagement convex part (engagement piece) 7 Wheel 9,10 , 12,13,14 Movable members (arms, legs)

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A63H 13/20 A63H 13/12 G04B 45/00

Claims (3)

(57) [Claims] 1. A drive shaft rotatably driven by drive means, and a decoration attached to the drive shaft via mounting means, wherein the decoration is rotatably provided and a wheel abuts on a fixed surface. And an upper leg, a lower leg, and an arm that are displaced in conjunction with the rotation of the wheel, and the wheel is rotatably attached to a lower portion of the ornament.
Fixed to a protruding portion of the first rotating shaft protruding from the decoration.
There Te, the lower end of the lower leg, the solid in the projecting end portion of the first rotary shaft
Yes and wearing, the upper end of the upper leg takes rotatable in middle of the ornament
A protruding end of the second rotating shaft protruding from the decoration;
And the upper end of the lower leg and the lower end of the upper leg are swingably connected to each other.
And the arm is rotatably mounted on the shoulder of the ornament
The third rotating shaft is fixed to a projecting end projecting from the decoration.
There Te, and the rod that is protruding formed on the upper surface of the second rotary shaft
A slider protruding from the lower surface of the third rotating shaft;
The single drive unit of the movable ornament characterized that you have linked to allow arm swing operation of the arm. 2. The apparatus according to claim 1, wherein the fixing surface is a cam surface formed along a rotation locus of the wheel, and the decoration is swingably attached to the drive shaft. A driving device for the movable ornament according to the above description. 3. One of the mounting means and the ornament has an engagement recess, and the other has an engagement projection detachably engaged with the engagement recess. The driving device for a movable ornament according to claim 1.