JPS643099Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a driving device for a rotating ornament used to give a moving decorative effect to a watch, etc. More specifically, the present invention relates to a rotating ornament drive device using a torsion spring. The present invention relates to a drive device.

[Prior Art] Generally, in a rotating ornament drive device using a torsion spring, the upper end of the torsion spring is fixed to a fixed member,
A rotating ornament is suspended from the lower end, a pin is fixed near the upper end of this torsion spring, and this pin is periodically supplied with energy from a clock mechanism via a well-known escape mechanism etc. to cause the rotating ornament to reciprocate. The rotational movement continues.

[Problems to be solved by the invention] Therefore, it is necessary to place the driving part (energy supply device) in a separate position from the torsion spring on which the rotating decoration is suspended, so if a torsion spring is used, it must be made into a unit. It is very difficult to do so, has a complicated structure, and is troublesome to assemble.

Therefore, the object of the present invention is to make it possible to unitize a rotating decoration drive device using a torsion spring, and to simplify the structure and assembly.

[Means for Solving the Problems] In order to achieve the above object, the rotating decoration drive device according to the present invention has a rotating decoration attached to an end portion and a rotation decoration with respect to a pair of receiving plate members. A tubular member freely disposed, and a linear spring inserted into the hollow part of the tubular member and having one end connected to one end of the tubular member and the other end connected to a fixed member. , a pair of plates fixed perpendicularly to the tubular member and facing each other in parallel; a drive magnet fixed to at least one opposing surface of both plates; A coil that acts on the coil to reciprocate the tubular member and a receiving plate member located at the lower end of the tubular member and below are respectively provided in a fixed relationship, and magnetically repel each other to push the tubular member upward. It is composed of a pair of seats made of permanent magnets.

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

In this example, the receiving plate members 1 and 2 are box-shaped bodies (cases).
is formed. The receiving plate member 1 is integrally formed with a pipe portion 3 protruding from the upper surface of its central portion, and a bearing 4 is fitted into the end portion of the pipe portion 3. A bearing 5 is provided at the center of the inner surface of the bottom of the receiving plate member 2, and in this embodiment, the bearing 5 is composed of a receiving seat 6 and a stem 7 inserted into the receiving seat 6 from below in a non-rotatable manner. has been done. The tubular member 8 is rotatably supported by bearings 4 and 5, and the stem 7 passes through a seat 9 press-fitted into the lower end thereof.

A linear torsion spring 10 is installed in the hollow part of the tubular member 8.
is inserted through the spring 10, and its lower end is connected to the stem 7, and its upper end is connected to the upper end of the tubular member 8 via a stopper seat 11, applying appropriate tension to the spring 10.

Further, a seat 13 is fixed to the tubular member 8, and the plates 12, 12 are fixed in parallel to each other.
Drive magnets 14, 14 are fixed to one end of the magnets 2, 12, and balancers 15, 15 are fixed to the other end of the magnets 2, 12, respectively.

A coil 16 is located between the drive magnets 14, 14 and magnetically cooperates with the drive magnets.
It is fixed to a held holder 19 by pillars 17 and 18 (actually, the pillars 17 and 18 are provided at a plurality of locations) that are integrally formed from the receiving plate members 1 and 2, respectively. A hole 21 of the rotary ornament 20 is inserted into the upper end of the tubular member 8.

The rotating decoration 20 reciprocates together with the tubular member 8 at a predetermined period due to the action of the spring 10. At this time, a detection signal is induced in the coil 16 every time the drive magnet 14 crosses the coil 16, and this detection signal is induced in the coil 16. A drive signal is supplied to the coil 16 from a drive circuit (not shown). Therefore, the magnetic flux generated from the coil 16 and the magnetic flux generated from the drive magnet 14 cooperate to periodically supply rotational energy to the rotating ornament 20 via the drive magnet 14, the plate 12, and the tubular member 8. The rotating decoration 20 continuously rotates back and forth.

By the way, the seats 6 and 9 of the bearing 5 that supports the lower end of the tubular member 8 are formed of a pair of permanent magnets that repel each other, and the repulsive force causes the tubular member 8 to
It is designed to float due to its gravity. By doing so, the friction loss in the bearing portion is reduced, making it possible to drive with a small amount of current, and the repulsive force can provide appropriate tension to the spring 10.

[Effects of the invention] According to the rotating decoration driving device according to the invention configured as described above, even when the torsion spring 10 is used, the driving part can be made into a unit, and in particular, the spring 10 can be inserted and arranged inside the tubular member 8. Then spring 10
There is little risk of the device being damaged, there is no need to be careful when handling it, the structure is simple and easy to assemble, and it can be constructed compactly and manufactured at low cost.

The present invention is specified only by the scope of the utility model registration claims, and design changes may be made freely within the scope of the claims. For example, the stem 7 may be directly fixed to the receiving plate member 2, or may be integrally formed to protrude from the receiving plate member 2.

[Brief explanation of drawings]

The drawing is a sectional view of a rotating decoration driving device according to an embodiment of the present invention. 1, 2...Bearing plate member, 4, 5...Bearing, 6...
catch, 7... stem, 8... tubular member, 9... catch, 10... spring, 12... plate, 14... drive magnet, 16... coil, 20... rotating decoration.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A tubular member having a rotating ornament attached to one end thereof and rotatably disposed relative to a pair of receiving plate members, and a tubular member inserted into the hollow portion of the tubular member. a linear spring having one end connected to one end of the tubular member and the other end connected to the fixing member; a pair of linear springs fixed perpendicularly to the tubular member and facing each other in parallel; a drive magnet fixed to opposing surfaces of at least one of the plates; a coil that is fixedly arranged and magnetically acts on the drive magnet to cause the tubular member to reciprocate; A pair of receivers formed of permanent magnets are provided in fixed relation to the lower end of the tubular member and the receiving plate member located below, and magnetically repel each other to push the tubular member upward. A driving device for a rotating decoration, characterized by comprising a seat and a seat. (2) The drive device for a revolving decoration according to claim 1, which is a utility model registered claim, wherein the receiving plate member is formed into a box-shaped body, and components are housed inside the box-shaped body to form a unit.