JP2771768B2 - Rotating decoration mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary decoration mechanism which obtains a driving force for a rotary decoration from a timepiece mechanism, and more particularly to a rotary decoration mechanism in which the rotational moment of inertia during the reversal movement of the rotary decoration is reduced.

[0002]

2. Description of the Related Art In general, a rotary decorative timepiece has a rotating shaft composed of a decorative member fixedly mounted on a vertically supported bearing shaft, and the bearing shaft is rotated periodically to rotate the rotating decorative shaft. This is a rotational movement that switches the direction in the reverse direction. In addition, the rotational movement of the rotary ornament, the rotation direction does not switch immediately, the rotation slowly slows down,
It is said to be a movement that starts to rotate slowly again in the opposite direction after stopping for a moment.

[0003] The rotary decoration mechanism for performing such a rotary motion is obtained by a method of obtaining a driving force by a combination of an electromagnet and an elastic return means, a mechanism provided with a drive mechanism separate from a timepiece mechanism, a timepiece mechanism. And the like that obtains a driving force from a motor are known.

[0004] That is, a rotary decoration mechanism that obtains a driving force from the clock mechanism extracts rotational power from the clock mechanism that performs a timekeeping function, converts the rotary motion into a rocking motion by a rocking lever or the like, and then The oscillating motion is converted into a rotational motion and transmitted to the bearing shaft to rotate the rotary ornament.

[0005] Further, when the bearing shaft for holding the rotary ornament is rotatably supported at its lower end, the lower end of the bearing shaft is formed by a tapered pivot shaft and supported by a special tray. . The tray is made of a hard material, and has a slight recess corresponding to the pivot shaft of the bearing shaft. Therefore, the rotational friction of the bearing shaft supporting the weight of the entire rotary ornament is reduced, and the wear due to the rotational operation is minimized.

[0006] A rotary ornament clock provided with such a rotary ornament locks the rotary ornament in order to prevent the ornament from being damaged by handling during transportation and storage. That is, the rotating decoration is fixed by the rotation lock, and depending on handling during transportation, etc., the rotating decoration is rapidly rotated, and the forcible movement of the rotating decoration prevents the rotating decoration mechanism from breaking down, The rotation decoration itself is prevented from colliding with other members and being damaged.

[0007] As the rotation lock of the rotary decoration, 1) the rotary decoration is pressed and locked by a lock member using an elastic material, and the lock member is pressed in the opposite direction by a member to be assembled during operation. And a device for releasing the engagement lock of the rotating ornament (for example, Japanese Utility Model Application Laid-Open No. 59983/1984).

[0008] 2) A thick plate-shaped buffer member having a tapered taper is inserted into a gap between the lower part of the rotary ornament and the watch case, and the entire rotary ornament is lifted and supported by the buffer member, thereby making the rotary ornament. And the like are known.

[0009]

However, in the timepiece provided with the above-described rotary decoration mechanism, the movement of the rotary decoration interferes with the clock mechanism, so that an accurate timekeeping operation cannot be performed and the time display becomes incorrect. An inconvenience occurred.

That is, at the time of the reversing movement in which the rotating decoration switches its rotation direction from one direction to the opposite direction, not only the momentum due to the weight of the rotating decoration but also the amount of rotation moment due to the shape of the rotating decoration is added, and both of them are canceled. A driving force for rotating in the opposite direction is required. For this reason, at the time of reversal of the rotating decoration, these become excessive loads on the timepiece mechanism, and the driving force of the timepiece mechanism is reduced, thereby hindering accurate timekeeping operation.

Further, in particular, when the rotary ornament is excessively rotated by external force or the like, there is a problem that the swing lever, which is a swing mechanism of the rotary ornament mechanism, is excessively bent and caught, and the entire timepiece stops.

Further, if the weight of the rotating decoration is limited in order to avoid such inconvenience, there is an inconvenience that a high-quality rotating decoration cannot be formed using a material such as a heavy crystal.

Further, in the above-mentioned rotary lock 1), there is an inconvenience that the shape of the rotary ornament to be engaged and locked is restricted. In other words, in order for the rotary ornament to be engaged and locked by the lock member, the bottom outer peripheral surface must always be constant. In addition, it cannot be applied to a rotary decorative timepiece that does not require an assembly member during operation.

On the other hand, in the case of 2), at the time of the locking operation, the buffer member must be inserted / extracted while avoiding the rotating decoration, which is disadvantageous in that it takes a troublesome work. In particular, in the case of a sophisticated rotary decoration, the decoration may be erroneously damaged during this operation. In addition, the shape of the rotary decoration is also restricted to a shape provided with a space that allows access to the insertion point. Further, for example, in the case of a shrink bottle type in which the timepiece main body and the rotating decoration are covered with a transparent cover, other exterior members must be arranged so that the rotating decoration can be reached.

[0015] Further, since the support plate of the bearing shaft is made of a hard material, the surface thereof is easily damaged by impact or the like, so that the frictional force may not be reduced well. In particular, when the entire timepiece is dropped, the tip of the bearing shaft may be deformed or broken due to the impact at the time of the drop.

Therefore, the present invention reduces the rotational moment of inertia during the reversal motion of the rotary ornament and prevents the moment from interfering with the timepiece mechanism, thereby enabling accurate timekeeping. It is an object of the present invention to provide a rotary decoration mechanism capable of locking the rotation of the camera.

[0017]

According to a first aspect of the present invention, there is provided a rotary ornament mechanism for swinging a clockwise mechanism for driving an hour hand, and converting the swinging movement into a rotating movement. A rotary decoration mechanism including a gear mechanism and a rotary decoration connected to the mechanism and configured to rotate, wherein an elastically deformable driven lever that follows the movement of the rocking lever is provided on the rocking lever, and the driven A stopper provided for restricting a swing angle of a lever is provided, and an interference force with respect to a clock mechanism due to an inertia moment generated at the time of reversing operation of a rotary ornament is attenuated by an elastic return force generated when the driven lever comes into contact with the stopper. It is.

The rotary decoration mechanism according to the second aspect of the present invention is a rotary decoration mechanism having a support shaft that is vertically erected and holds the rotary decoration, and a tray that rotatably supports the lower end of the support shaft. A decoration mechanism, which holds the tray by an elastic member and axially supports the support shaft so as to be movable in the axial direction;
At the upper end of the support shaft, a fitting member having a polygonal fitting portion having a cross section parallel to the upper flange portion was provided, and a lock member for lifting and holding the member upward in the support shaft was provided. Things.

[0019]

According to the first aspect of the present invention,
When the swing lever that rotates the bearing shaft of the rotary decoration is fixedly provided with a driven lever and a stopper that regulates the swing angle of the driven lever is provided, the maximum swing of the swing lever is achieved.
The driven lever comes into contact with the stopper, and the driven lever is elastically deformed. And, by the elastic return force of the driven lever, the moment of inertia due to the rotary decoration can be reduced,
The driving force of the swing lever required by the timepiece mechanism at the time of reversing can be reduced. In other words, the elastic force acts in the reverse direction with respect to the rotation direction immediately before the reversal of the rotating decoration, and acts in the forward direction immediately after the reversing, so that the reversing movement of the rotating decoration is supported. become. Therefore, since the rotating decoration can perform a slow motion that smoothly stops and starts to move, it is possible to provide an elegant luxury decoration rotating clock.

Further, the driven lever and the stopper
Since the rotation decoration can be prevented from over-rotating at the time of starting or operation, the drive mechanism can be protected and safety can be improved.

Further, since the reversing operation of the rotating decoration is supported and the limitation on the weight of the rotating decoration is eased as described above, a variety of rotating members can be provided by increasing the number of decorative members or using a heavy material such as a crystal. Decoration can be used, and the appearance can be improved to increase the commercial value.

According to the second aspect of the present invention, the rotating ornament can be locked in the rotating direction by fitting and lifting the support shaft of the rotating ornament by the locking member, and at the same time, the rotating ornament can be vertically moved by the locking member. Since the rotating decoration can be locked in the direction, the rotating decoration can be reliably locked, and the rotating decoration, the rotating decoration mechanism, and the bearing shaft can be prevented from being damaged during transportation and storage, and safety can be ensured well. In addition, since it is sufficient to perform the work of pulling out and inserting the lock member from the back of the timepiece movement, the operation of locking and unlocking the rotating decoration becomes easy, and the restriction on the rotating decoration such as the shape can be eliminated.

Also, when the whole watch is dropped,
Since the tray itself sinks and absorbs, the tray and the lower end of the support shaft can be reliably protected.

[0024]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a first embodiment of the present invention; FIG. 1 and 2
As shown in FIG. 1, a rotating decorative timepiece 1 according to the present embodiment has a substantially disc-shaped watch case base 2, a base plate 4 fixed on the watch case base 2 via a support column 3, and fixed to the base plate 4. Watch movement 5, a front plate 7 having a dial 6 attached to the front surface of the movement 5, and a movement 5
A clock hand 8 that is driven by the motor and displays time, a bearing shaft 9 that is suspended from the movement 5, a rotary ornament 10 attached to the bearing shaft 9, a bearing portion 11 that supports the bearing shaft 9, And a transparent fusebin 12 that covers

The watch case base 2 has two columns 3
An elongate base plate 4 is attached to the upper ends of the columns 3. In addition, on the base plate 4,
A timepiece movement 5 is fixedly mounted, and a front plate 7 is attached to a front surface of the timepiece movement 5. Further, the timepiece movement 5 includes a timepiece mechanism 14 for driving the timepiece 8 to display the time and a timepiece 1 for driving the bearing shaft 9 to display the time.
The rotating decoration mechanism 15 for reversing the 0 is stored. That is, the rotary decoration 10 is rotatably disposed in the space just below the base plate 4 formed by the columns 3.

The rotary ornament 10 is constituted by a symmetrical ornament member provided with a crystal. The rotary ornament 10 is attached to a vertically supported bearing shaft 9.

The bearing shaft 9 is connected at its upper end to a rotary decoration mechanism 15 in the timepiece movement 5, and is driven to rotate by the rotary decoration mechanism 15. Also, the bearing shaft 9
At the lower end, a pivot shaft 9a having a tapered shape is provided.
The pivot shaft 9a is rotatably supported by a bearing 11 described later.

A clock shaft 17 on which a clock hand 8 is mounted protrudes from the clock movement 5, and the clock shaft 17 is driven to rotate by a clock mechanism 14, and the current time is set by the clock hand 8 moving on the dial 6. it's shown.

As shown in FIGS. 3 and 4, the timepiece mechanism 14 includes a drive motor (not shown), a rotor wheel 18 rotationally driven by the motor, and a wheel train rotationally driven by the rotor wheel 18. 19 and the train wheel 19,
Each is constituted by a clock shaft 17 that is individually driven to rotate.

The wheel train 19 is sequentially engaged with the fifth wheel & pinion 2
The first and fourth wheels 22, 23 are configured with a predetermined gear ratio, and the rotor wheel 18 rotationally drives the fifth wheel 21 to obtain a predetermined decelerated rotation speed in each of the gears 22, 23. I am trying to be.

The third wheel 23 is connected to the minute wheel 25 and the minute wheel 2
5 is meshed with the hour wheel 26 via the minute wheel 24, respectively. That is, a fourth wheel 22, a minute wheel 25, and an hour wheel 26, which are second hand wheels, are disposed coaxially at substantially the center of the timepiece movement 5.
A predetermined number of teeth are provided. The fourth wheel 22 (second hand wheel) is fixedly provided with a second hand shaft 22a, and the minute hand wheel 25 is fixedly provided with a cylindrical minute hand shaft 25a having an inner diameter through which the second hand shaft 22a can be inserted. The hour hand wheel 26 has a cylindrical hour hand shaft 26a having an inner diameter through which the minute hand shaft can be inserted.
Is fixed. These shafts 22a, 25a, 26a
Are the corresponding watch movement 5 and the character / front plate 6,7
And protrudes from the dial 6 through a clock shaft hole 27 provided in the dial. An hour hand 8c (short hand) is attached to the outer periphery of the tip of the protruding hour hand shaft 26a, and the minute hand 8b is attached to the outer periphery of the tip of the minute hand shaft 25a beyond the hour hand 8c.
(Long pointer) is attached, and at the tip of the second hand shaft 22a,
The second hand 8a (long pointer) is mounted.

Then, the rotation from the rotor wheel 18 is transmitted to the wheel train 1
The speed reduction wheel 9 is transmitted to the fourth wheel 22, the minute wheel 25, the minute wheel 24, and the hour wheel 26, which are the second wheel, through the second wheel 9.
25, 26 rotate at a predetermined number of rotations, and
The time is displayed by the upper hands 8a, 8b, 8c.

Reference numeral 28 denotes a time adjustment knob, which meshes with a ring-shaped outer tooth loosely fitted on the hour hand shaft 26a via the minute wheel 24.

The rotary decoration mechanism 15 includes an eccentric cam 29 meshed with the fourth wheel 22 of the train wheel 19 and the eccentric cam 29.
And a driven lever 31 driven by the rocking lever 30 to move, and a swinging lever 30 having one end engaged with a pin 29a protruding at an eccentric position of the rocking lever 30. It comprises a crown wheel 32 meshed with the end and driven to rotate, and a pinion wheel 33 for transmitting the rotation of the crown wheel 32 to the bearing shaft 9 provided in the orthogonal direction.

The eccentric cam 29 is engaged with the fourth wheel 22 of the timepiece mechanism 14 and rotates at a relatively high speed. The eccentric cam 29 is provided with a pin 29 at a predetermined eccentric position.
a is protruded, and the pin 29a is loosely fitted into an engagement hole 30b of the swing lever 30 described later.

The swing lever 30 is formed in a substantially elongated rod shape by a material which can be elastically deformed.
a is provided, and is pivotally supported in the left-right direction.
Further, one end of the swing lever 30 has an eccentric cam 2 having a width.
9 is provided with a substantially rectangular engagement hole 30b having the same outer diameter as
The engagement hole 30b is loosely fitted to the pin 29a of the eccentric cam 29. Further, a comb tooth 30c is provided at the other end of the swing lever 30, and the comb tooth 30c is
2 is engaged. Therefore, when the eccentric cam 29 rotates, the pin 29a of the eccentric cam 29 moves eccentrically, and the rocking lever 30, one end of which is engaged with the pin 29a, rocks with a predetermined rocking width. Then, by moving the comb teeth 30c at the other end in the forward and reverse directions by the swinging movement, the crown wheel 32 meshing with the comb teeth 30c is rotated.

The swing shaft 30a of the swing lever 30
A driven lever 31 formed substantially in an L-shape parallel to the swing lever 30 is fixedly mounted on the front end of the driven lever 31. Similar to the swing lever 30, a substantially rectangular engaging hole 31a is provided at the tip of the driven lever 31.
Is provided. A stopper 34 fixed to the movement 5 is arranged in the engagement hole 31a of the driven lever 31, and the inner width of the engagement hole 31a in the swing direction is set to the stopper 34 before the maximum swing. It is set to contact with. Therefore, when the swing lever 30 swings to the maximum, the driven lever 31 also swings in the same manner, and abuts the stopper 34 against the engaging hole at the distal end, so that the middle of the driven lever 31 is elastically deformed. ing.

The direction in which the driven lever extends is as follows.
There is no particular limitation. For example, in the present embodiment, the driven lever is extended from the pivot axis in parallel to the eccentric cam side, but may be extended on the opposite side to the pivot lever and non-parallel. It can be flexibly changed according to the arrangement of surrounding parts. Also, a plurality of driven levers may be provided to enhance the elastic return force, thereby coping with an increase in the weight of the rotary decoration.

The crown wheel 32 has tooth portions 32a and 32b having rotating surfaces orthogonal to each other, and transmits the rotation of the crown wheel 32 to a pinion wheel 33 provided in a direction orthogonal to the crown wheel. That is, a tooth portion 32a provided around the rotation axis of the crown wheel 32 and meshing with the comb teeth 30c of the swinging lever 30 and an outer peripheral edge of the disk protrude in the axial direction. And a tooth portion 32b that meshes with the pinion wheel 33. Therefore, the turning movement of the crown wheel 32 by the swing lever 30 is transmitted to the pinion wheel 33 provided in a direction orthogonal to the axial direction of the crown wheel 32, and the pinion wheel 33 is turned.

The lower wheel 33 has a flange 33a at the lower end.
And a tooth portion 33b is engraved on the upper end side so as to be long in the axial direction. A small diameter portion 33c is provided at the upper end of the pinion wheel 33.
The small diameter portion 33c is rotatably loosely fitted to an insertion shaft 35 provided in the movement 5.
Therefore, the small diameter portion of the pinion wheel 33 is loosely inserted into the insertion shaft 35 of the movement 5 and
Are formed wide, the pinion wheel 33 can freely move in a certain range in the axial direction of the pinion wheel 33 while maintaining the meshing state with the crown wheel 32.

The pinion wheel 33 includes a fitting member 36 described later.
Is connected to the bearing shaft 9 to which the rotary ornament 10 is attached. Accordingly, the rotary decoration 10 rotates in accordance with the rotation of the pinion wheel 33.

Next, the operation of the rotary decoration mechanism 15 will be described.

That is, when the eccentric cam 29 rotates counterclockwise from the initial state as shown in FIG. 5A, the eccentric movement of the pin 29a of the eccentric cam 29 causes
The swing lever 30 swings counterclockwise as shown in FIG. Then, the crown wheel 32 is rotated clockwise by the comb teeth 30c at the tip of the swing lever 30, the rotation of the crown wheel 32 is transmitted to the pinion wheel 33, and the pinion wheel 33 rotates leftward in the drawing. Then, the support shaft 9 connected to the pinion wheel 33 rotates together with it, and the rotary decoration attached to the support shaft 9 rotates to the left.

Next, as shown in FIG. 5 (c), as the eccentric cam 29 approaches １ ／ rotation, and the swing lever 30 approaches the swing limit, it follows the movement of the swing lever 30. The leading end of the driven lever 31 abuts against the stopper 34, and the intermediate portion of the driven lever 31 is bent. At this time, the elastic deformation returning force of the driven lever 31 acts in the direction opposite to the swing direction of the swing lever 30, and is strengthened as it approaches the swing limit. As a result, when the rotating ornament 10 is turned over after reaching the swing limit, the elastic restoring force of the driven lever 31 is maximized, and the rotational moment of the rotating ornament 10 can be reduced by the maximum elastic restoring force. Is the clock mechanism 1
4 can be prevented from adversely affecting the driving force. That is, when the rotating decoration 10 performs a reversing operation,
Immediately before the reversal, it works in the reverse direction to the rotation direction, and immediately after the reversal, it works in the forward direction, thus assisting the reversal movement of the rotary ornament 10.

Then, following the rotation of the eccentric cam 29, through an intermediate state as shown in FIG.
As shown in (e), the eccentric cam 29 is in a state of half-turn. Thereafter, with the subsequent half rotation of the eccentric cam 29,
The above-described operation is performed in the opposite direction, and
0 performs a reversing motion. Finally, the eccentric cam 29 makes one rotation,
Returning to the initial rotation position, the state becomes as shown in FIG. Such a series of operations is repeated every one rotation of the eccentric cam 29, and the periodic reversal movement of the rotary decoration 10 is continued.

As described above, according to this embodiment,
When the swing lever that rotates the bearing shaft of the rotary decoration is fixedly provided with a driven lever and a stopper that regulates the swing angle of the driven lever is provided, the maximum swing of the swing lever is achieved.
The driven lever comes into contact with the stopper, and the driven lever is elastically deformed. And, by the elastic return force of the driven lever, the moment of inertia due to the rotary decoration can be reduced,
The driving force of the swing lever required by the timepiece mechanism at the time of reversing can be reduced. In other words, the elastic force acts in the reverse direction with respect to the rotation direction immediately before the reversal of the rotating decoration, and acts in the forward direction immediately after the reversal, so that the reversing movement of the rotating decoration is supported. become. Therefore, since the rotating decoration can perform a slow motion that smoothly stops and starts to move, it is possible to provide an elegant luxury decoration rotating clock.

Further, the driven lever and the stopper
Since the rotation decoration can be prevented from over-rotating at the time of starting or operation, the drive mechanism can be protected and safety can be improved.

Further, since the reversing operation of the rotating decoration is supported and the limitation on the weight of the rotating decoration is relaxed, various kinds of rotation can be achieved by increasing the number of decorative members or using a heavy material such as a crystal. Decoration can be used, and the appearance can be improved to increase the commercial value.

Next, an embodiment according to the second aspect of the present invention will be described.

As shown in FIG. 2, the rotary decoration protection mechanism of the present embodiment includes a fitting member 36 provided at the upper end of the support shaft 9.
And a lock member 41 which fits and locks with the support shaft 9
And a bearing 11 rotatably supporting the lower end of the bearing.

As shown in FIGS. 6 and 7, the fitting member 36 includes a flange portion 37 provided on the upper side and a fitting portion 38 provided on the lower side. Are formed in a hexagonal shape, which is a polygonal shape having parallel sides. A pinion wheel 33 is coaxially connected to an upper end, and a bearing shaft 9 is coaxially connected to a lower end.

At the lower end of the movement 5, a lower frame portion 39 for accommodating the pinion wheel 33 and the fitting member 36 is formed. That is, the lower frame portion 39 is
An opening 39a opened to face the back of the timepiece movement 5 for inserting 1 and a notch 39b through which the fitting portion 38 of the fitting member 36 passes are provided on the lower surface.

The lock member 4 fitted to the fitting member 36
As shown in FIG. 7 and FIG. 8A, 1 has a notch 41a provided in the longitudinal direction of the long plate, and has a substantially U-shaped planar shape. The inner width of the notch 41a is set equal to the facing width of the fitting portion 38 of the fitting member 36. The plate thickness of the lock member 41 is set to be larger than the gap between the flange 37 of the fitting member 36 and the lower frame 39 of the movement 5 during normal use.

As shown in FIG. 8 (b), the lock member 41 is tapered on the tapered surface 41b where the leading end side of the lock member 41 becomes thinner.
May be provided. In this case, since the fitting member 36 is lifted upward with the insertion of the lock member 41, the lifting operation of the rotary decoration 10 can be omitted, and the lock operation can be simplified.

As shown in FIG. 9, the bearing portion 11 includes a spring hole 43 provided in the watch case base 2, a receiving plate 44 inserted into the spring hole 43,
It comprises a coil spring 45 for buffering contracted therein and a pressing member 46 provided on the hole 43.

That is, at the place corresponding to the bearing shaft 9 of the watch case base 2, a bottomed spring hole 43 having a predetermined depth is provided.
Is provided.

A receiving plate 44 having the same outer diameter as the inner diameter of the hole 43 is fitted in the spring hole 43. The receiving tray 44 is made of a hard material, and has a slight recess corresponding to the pivot shaft 9 a of the support shaft 9.

A contracted coil spring 45 is housed in a spring hole 43 below the tray 44, and the coil spring 45 urges the tray 44 upward.

A holding member 46 is provided at an opening of the spring hole 43 above the receiving tray 44. Therefore,
The holding member 46 prevents the tray 44 from jumping out of the spring hole. Further, the holding member 4
6, a pivot shaft hole 46a is provided at a position corresponding to the tray 44.
The inner diameter of the pivot shaft hole 46a is set to be larger than the outer diameter of the pivot shaft 9a provided at the lower end of the support shaft 9. Therefore, even when the support shaft 9 is lifted upward when the rotary ornament 10 described later is locked, the pivot shaft 9a does not come off from the pivot shaft hole 46a, and the pivot shaft 9a You can go back to

When the rotary ornament 10 is locked, the bearing shaft 9 is lifted upward from the state of normal use shown in FIG. 3 as shown in FIG. Next, the lock member 41 is inserted into the gap between the flange portion 37 of the fitting member 36 and the lower frame of the movement 5 that have spread at this time. Thus, the rotary member 10 can be held by the lock member 41 while being lifted upward. In this case, since the upward movement is prevented by the movement limit of the pinion wheel 33 and the insertion shaft 35, the rotary ornament 10 is locked in the up-down direction. At the same time, the rotation of the rotary ornament 10 can be locked by holding the fitting portion 38 of the fitting member 36 by the lock member 41.

The insertion direction of the lock member is not limited to the above embodiment, and an insertion hole may be provided on the side of the timepiece movement, and the lock member may be inserted from the side of the timepiece movement.

As described above, according to this embodiment,
The rotating member can be locked in the rotating direction by fitting and lifting the fitting member provided at the upper end of the support shaft by the locking member, and the rotating member can be locked in the vertical direction by the locking member at the same time. Can be locked, the rotation decoration, the rotation decoration mechanism, and the bearing shaft can be prevented from being damaged during transportation and storage, and good safety can be ensured. Further, since it is sufficient to remove and insert the lock member from the back of the timepiece movement 5, it is easy to perform locking and unlocking operations of the rotating decoration, and it is possible to eliminate restrictions on the rotating decoration such as the shape.

Also, when the entire watch is dropped,
Since the tray itself supported by the elastic member sinks and absorbs, the tray and the lower end of the support shaft can be reliably protected.

[0064]

As described above, according to the first aspect of the present invention, the swing lever for rotating the bearing shaft of the rotary ornament is fixedly provided, and the swing angle of the follow lever is fixed. Is provided, the driven lever comes into contact with the stopper at the time of maximum swinging of the swinging lever, and the driven lever is elastically deformed. In addition, the elastic return force of the driven lever can reduce the moment of inertia due to the rotational decoration, and can reduce the driving force of the swing lever required by the timepiece mechanism at the time of inversion. That is,
The elastic force acts in the reverse direction with respect to the rotation direction immediately before the reversal of the rotating decoration, and acts in the forward direction immediately after the reversing, so that the reversing movement of the rotating decoration is supported. . Therefore, since the rotating decoration can perform a slow motion that smoothly stops and starts to move, it is possible to provide an elegant luxury decoration rotating clock.

Further, the driven lever and the stopper
Since the rotation decoration can be prevented from over-rotating at the time of starting or operation, the drive mechanism can be protected and safety can be improved.

Further, since the reversing operation of the rotating decoration is supported and the limitation on the weight of the rotating decoration is eased, various kinds of rotation can be achieved by increasing the number of decorative members or using a heavy material such as a crystal. Decoration can be used, and the appearance can be improved to increase the commercial value.

According to the second aspect of the present invention, the rotating ornament can be locked in the rotational direction by fitting and lifting the support shaft of the rotating ornament by the locking member, and at the same time, the rotating ornament can be vertically moved by the locking member. Since the rotating decoration can be locked in the direction, the rotating decoration can be reliably locked, and the rotating decoration, the rotating decoration mechanism, and the bearing shaft can be prevented from being damaged during transportation and storage, and safety can be ensured well. In addition, since it is sufficient to perform the work of pulling out and inserting the lock member from the back of the timepiece movement, the operation of locking and unlocking the rotating decoration becomes easy, and the restriction on the rotating decoration such as the shape can be eliminated.

Also, when the entire watch is dropped,
Since the tray itself sinks and absorbs, the tray and the lower end of the support shaft can be reliably protected.

[Brief description of the drawings]

FIG. 1 is a front view showing a general schematic configuration of a rotary decoration timepiece provided with a rotary decoration mechanism of the present invention.

FIG. 2 is a schematic side view of the rotary decorative timepiece according to the embodiment.

FIG. 3 is a vertical sectional view showing a main part of the rotary decoration mechanism according to the embodiment.

FIG. 4 is a rear view showing a main part of the rotary decoration mechanism of the embodiment.

FIG. 5 is an operation explanatory view showing the operation of the rotary decoration mechanism of the embodiment.

FIG. 6 relates to the rotation lock of the rotation decoration mechanism of the present embodiment,
Enlarged view of the main part on the back of the clock movement.

FIG. 7 is a bottom view of the timepiece movement of the embodiment.

8A and 8B show a lock member of the present embodiment, FIG. 8A shows a lock member of the present embodiment, and FIG. 8B shows a lock member of another embodiment.

FIG. 9 is an enlarged vertical sectional view showing a receiving shaft portion of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotating ornament clock 5 Clock movement 6 Dial 8 Clock hand 9 Bearing shaft 10 Rotating ornament 11 Bearing part 12 Sebin 14 Clock mechanism 15 Rotating ornament mechanism 29 Eccentric cam 30 Swing lever 31 Follower lever 34 Stopper 36 Fitting member 37 Fitting Member (flange) 38 Fitting member (fitting portion) 41 Lock member 44 Receiving tray 45 Coil spring

Continuation of the front page (56) References JP-A-62-186094 (JP, U) JP-A 1-117590 (JP, U) JP-A 61-161788 (JP, U) JP-A 62-62993 (JP) , U) Real opening 58-195888 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G04B 45/00

Claims (2)

(57) [Claims] A swing mechanism that swings by a clock mechanism that drives an hour hand, a gear mechanism that converts the swing movement into a swing movement, and a rotary ornament that is connected to the mechanism and swings. In the rotary decoration mechanism, an elastically deformable driven lever that follows the movement of the swing lever is provided on the swing lever, and a stopper that regulates the swing angle of the driven lever is provided. A rotating decoration mechanism characterized by attenuating an interference force on a timepiece mechanism due to an inertial moment generated when the rotating decoration is turned over by an elastic return force generated by contacting the stopper. 2. A rotary decoration mechanism comprising a support shaft that is vertically erected and holds a rotary decoration, and a tray that rotatably supports the lower end of the support shaft, wherein the tray is held by an elastic member. Along with supporting the bearing shaft so as to be movable in the axial direction, a fitting member having a polygonal fitting portion whose upper side is parallel to the upper flange portion is provided at the upper end of the bearing shaft. A rotary decoration mechanism comprising a lock member for lifting and holding the support shaft in an upward direction.