JPH0626873Y2 - Mechanism of rotating ornaments in Karakuri clock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a rotating mechanism for a decorative body such as a doll provided in a mechanical timepiece. More specifically, the present invention relates to a mechanism in which a doll or the like is supported by a single rotating shaft, and when the clock reaches a predetermined time, the doll rotates normally or reversely on the rotating shaft.

(Prior Art) In a mechanical timepiece, as a mechanism for rotating a doll, in addition to mechanical conduction by a gear or a belt, a mechanism that utilizes a repulsive attraction force by a magnet is adopted.

(Problems to be Solved by the Invention) This invention improves the use of a magnet in the case of using a magnet, and provides a mechanism that makes the movement of the decorative body more complicated and is visually effective, and has good conduction efficiency. Is.

(Means for Solving Problems) This invention will be described with reference to an embodiment shown in FIG.
A decorative body 1 such as a doll is rotatably supported on a table 3 by a shaft 2. A flat plate 5 serving as a magnet mounting member is provided on the shaft 2, and four magnets 4 are provided at equal intervals on the flat plate 5 on the outer periphery of the shaft 2. This magnet 4 is N
The magnetic pole direction of S is arranged substantially parallel to the axis 2.

Separately, a base of a lever 7 is rotatably supported by a shaft 8 on a lower base 9, and a magnet 6 is provided at the tip of the lever 7. The lever 7 is connected to a connecting rod 10 of a driving device (not shown). The drive device is, for example, a crank provided on a shaft rotated by a motor, and the connecting rod 10 is connected to the crank.

(Operation) In the embodiment shown in FIG. 1, the driving device moves the connecting rod 10 left and right, the lever 7 swings left and right as shown by the dotted line, and the lever magnet 6 approaches the ornamental magnet 4. Acts apart. When both magnets approach and separate, they attract and repel each other, and the flat plate 5 rotates clockwise and counterclockwise. Since the magnetic force is weak at a position where the two magnets are separated from each other, the decorative body 1 continues to rotate due to inertia of the rotation. When both magnets approach each other, they are attracted or repelled to suddenly stop or accelerate, and the decorative body 1 makes complicated forward and reverse rotations.

(Example) In the example shown in FIG. 1, four magnets 4 of the decorative body are provided at equal intervals so that the poles of the adjacent magnets are NS opposite to each other.

The swinging surface of the lever 7 is orthogonal to the rotating surface of the magnet 4, and the trajectory of the reciprocating motion of the magnet 6 is a position deviated from the axis 2 as indicated by the line P as shown in FIG. Is good.

In the example shown in FIG. 3, the lever 7a is rotatably supported by a shaft 8a, and is provided so as to reciprocate left and right by a connecting rod 10a. The lever 7a has a swing surface on which the magnet 4
This is an example provided so as to be parallel to the rotation surface of.

(Effects of the Invention) As described above, the present invention relates to a mechanism for rotating a decorative body such as a doll in a mechanical timepiece with an axis, in which the NS magnetic pole direction is parallel to the axis and four or more. A large number of magnets are provided, and the magnets that move closer to and away from each other on the one hand move to the left and right by the lever, so that the decorative body rotates in the forward and reverse directions, and the rotation of the speed change causes the viewer's interest. Watering By shifting the connecting rod of the lever using a cam or the like, for example, when the ornamental body is a dance doll, the movement can be moved to slow, slow, quick, and quick. In addition, it can be used as a mechanical clock for a rotating device for various ornaments.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a plan view for explaining movement loci of a flat plate 5 and a magnet 6 of a magnet mounting member, and FIG. 3 is a side view showing another embodiment. is there. 1 ... Decorative body, 2 ... Axis, 3 ... Stand, 4, 6 ... Magnet,
7 ... Lever

Claims (1)

[Scope of utility model registration request] 1. A decoration body such as a doll is rotatably supported on a base by a shaft, a magnet mounting member is provided at one end of the shaft, and this member is located on one plane of the outer circumference of the shaft and has four or more members. Magnets that N
The S magnetic pole direction is provided substantially parallel to the shaft, and a magnet is provided at the tip of a lever that pivotally supports the base separately so that the magnet is moved closer to and away from the magnet of the decorative body. A mechanism for rotating a decorative body in a mechanical timepiece, which is configured to swing right and left to rotate the decorative body forward and backward.