JPS6033426Y2 - rotating ornament - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rotating ornament used to give a moving decorative effect to, for example, a watch or the like.

Conventional rotating ornaments of this type are driven by a separately provided drive device.

However, this structure requires a space to accommodate the drive device, and it is difficult to attach the rotating decoration in a suspended state.

The present invention has been devised in view of the above-mentioned circumstances, and one embodiment thereof will be described below.

In FIG. 1, the spindle 1 is a clock frame or a bronze statue or sculpture (none of which is shown) that constitutes the frame.

), etc., and the central shaft 3 is coaxially fixed via a connecting member 2.

A seat 4 is fixed to the central shaft 3, plate members 5, 5 are fixed to both ends of the seat 4 in parallel with each other, and driving magnets 6, 6 are fixed to the tips of the plates facing each other. has been done.

Further, a receiving plate 7° 8 is rotatably fitted to the central shaft 3 via bearings 9, 10 provided thereon, and in this embodiment, the receiving plate 7, 8 is formed into a box-shaped body. There is.

A coil 11 that cooperates with the drive magnets 6 and 6 is arranged between the receiving plates 7 and 8 via a holder 12.

The holder 12 is screwed into an adjustment screw 13 rotatably supported by the receiving plates 7 and 8, and its position can be adjusted in the vertical direction by rotating the adjustment screw 13.

However, this adjustment screw 13 is fixedly attached to the receiving plates 7 and 8 in the plane direction.

Furthermore, a balance spring 14 is provided below the plate body 4,
Its inner end is fixed to the central shaft 3 via a bead 15, and its outer end is fixed to the receiving plate 8 via a suitable member.

Further, on the opposite side of the coil 11, there is a column 17 on which a brake plate 16 formed of aluminum or the like projects integrally from the receiving plates 7 and 8.
．． It is held by 18.

A decoration 20 is attached to the pipe-shaped part 19 formed at the center of the upper surface of the receiving plate 7, and in this embodiment, this decoration completely covers the receiving plates 7 and 8 so that the driving part cannot be seen from the outside. It has become.

Donut-shaped permanent magnets 21 and 22 are fixed to the inner lower surface of the receiving plate 7 and the upper surface of the upper plate 5 so as to face each other, with the central shafts 3 passing through their center holes.

Both permanent magnets 21 and 22 have opposing surfaces with the same polarity and magnetically repel each other, and the weight of the decoration 20 and the like is balanced by this repulsive force.

Although not shown, the printed circuit board to which the coil 11 is connected and its control circuit mounted and the power supply are connected to the receiving plate 7,
8, making use of that space.

When a periodic signal is supplied to the coil 11, the driving magnet 6
, 6. Since the waist moving magnets 6, 6 are fixed, the receiving plates 7, 8 periodically reciprocate around the central axis 3 via the coil 11 and holder 12. 20 will also rotate together.

Note that in the above embodiment, the drive magnets 6, 6 and the coil 11
, the balance spring 14 constitutes an electromagnetic drive device, and the drive magnets 6, 6 are placed on the receiving plate 7.8 side with the coil 11.
may be fixed to the central axis 3 side.

Further, the central shaft 3 may be fixed with its position facing downward, but in this case, the bearing structure and the arrangement of each part can be freely designed within the scope of the utility model registration claims.

Moreover, the decoration 20 can also be formed integrally with the receiving plates 7 and 8.

As described above, according to the present invention, the decoration is completely suspended in the air and driven, and the driving part is hidden behind the decoration and cannot be seen, so it attracts people's attention and has a great decorative effect.

Moreover, the structure is simple and can be manufactured at low cost.

[Brief explanation of drawings]

The drawing is a sectional view of an embodiment of the present invention. 3... Central axis, 6... Drive magnet, 7.
Death...Brace plate, 11...Coil, 14...
... Balance spring, 20 ... Decoration.

Claims (4)

[Scope of utility model registration request] (1) a central shaft that is fixedly supported; a receiving plate that is rotatably supported with respect to the central axis; an electromagnetic drive device that rotationally drives the receiving plate about the central axis; the electromagnetic drive device includes a hairspring, a drive magnet, and a coil;
One of the driving magnet and the coil is attached to the central shaft and the other to the receiving plate, and the inner end of the hairspring is fixed to the central axis and the outer end thereof is fixed to the receiving plate. A rotating ornament featuring (2) The rotating decoration according to claim 1, wherein the receiving plate is formed into a box-like body that accommodates the electromagnetic drive device. (3) The rotating decoration according to claim 2, wherein the power supply and control circuit of the electromagnetic drive device are provided inside the box-shaped body. (4) The rotating ornament according to claim 2, wherein the rotating ornament almost completely covers the box-shaped body.