JP2015197346A - Gimmick clock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gimmick clock with a timepiece dial rotation mechanism in which stable engagement relationship can be obtained, dimensional control of a gear that the timepiece dial is attached to can be simplified, and manufacturing cost can be decreased.SOLUTION: A gimmick clock is provided in which a timepiece dial rotates. A timepiece supporting plate 3 includes a motor unit which rotates and drives the timepiece dial. The timepiece dial is constructed by a ring-shaped plate having notches in a center part. A ring gear 2b is arranged in a back side of the timepiece dial. The motor unit includes a wheel row 4 having a driving linkage of a rotation axis of the motor. The ring gear 2b is engaged with a driving gear 4a of the wheel row 4. A pulley 5 supporting the ring gear 2b from the outer peripheral side is arranged at a portion where the ring gear 2b and the driving gear 4a of the wheel row 4 are engaged in the timepiece supporting plate 3.

Description

  The present invention relates to a mechanism clock in which a clock dial rotates.

  2. Description of the Related Art Conventionally, as a mechanism for rotating a dial in a clockwork timepiece that rotates a dial, two pulleys are arranged up and down, and a gear linked to the dial is sandwiched, or a gear is attached to the center of the watch, and the gear It is known that a dial is attached to.

JP 2013-24831 A

  In the above-mentioned prior art, two pulleys arranged on the top and bottom and a gear linked to the dial plate are sandwiched, so that when the dimensional error occurs in the gear, when the so-called dimensional error occurs, the meshing is not stable, There is a possibility of disengagement. In particular, when the gear has a large diameter such as 350 mm, there is a high possibility that the dimension will be off, and the above-described problems are likely to occur. Moreover, in order to prevent stagnation, it is necessary to increase the dimension clearance, that is, the backlash, especially in the case of a dial of a radio timepiece, due to such backlash, ) There is a risk of misalignment.

  In addition, in the case where a gear is attached to the center of the watch described above and a dial is attached to the gear, the meshing of the gear is stable, but it is necessary to attach the dial to the central gear. There is an inconvenience.

  The present invention has been made in view of the above circumstances, and based on a configuration using a ring-shaped dial plate with a notch formed at the center, a stable meshing relationship is obtained in a mechanism for rotating the dial plate. It is an object of the present invention to provide a clockwork timepiece capable of stabilizing the quality and facilitating the dimensional control of the gear to which the dial is attached, and thereby reducing the manufacturing cost.

The invention described in the first claim of the present application is the timepiece clock 1 of the type in which the timepiece dial 2 rotates when the reference numerals used in the embodiments are attached.
The timepiece support plate 3 includes a motor unit M that rotates the timepiece dial plate 2.
The timepiece dial plate 2 is composed of a ring-shaped plate 2a formed by cutting out a central portion,
A ring gear 2b is provided on the back side of the timepiece dial 2,
The motor unit M includes a train wheel 4 that is drivingly linked to the rotation shaft of the motor.
The ring gear 2b meshes with the drive gear 4a of the train wheel 4,
This is a clockwork timepiece in which a pulley 5 that supports the ring gear 2b from the outer peripheral side is provided on the timepiece support plate 3 where the ring gear 2b and the drive gear 4a of the train wheel 4 mesh.

  The invention described in claim 2 of the present application is that, in claim 1, the pulley 5 that supports the ring gear 2b is provided at a position that deviates from an imaginary vertical line passing through the watch pointer shaft 6, and The timepiece support plate 3 on the opposite side of the pulley 5 that is symmetrical with respect to the line 5 is provided with a second pulley 7 that supports the ring gear 2b.

  According to the third aspect of the present invention, in the first aspect, the disc gear 9 having the rotation center of the pointer shaft 6 is rotatably mounted, and a plurality of rotating decoration gears 11 meshing with the disc gear 9 are provided. And a second wheel train 40 that meshes with the train wheel 4 provided in the motor unit M is provided, and any one of the plurality of rotating decoration gears 11 is provided on the second train wheel 40. It is a clockwork clock that meshes.

  According to the first aspect of the present invention, a ring-shaped dial plate is rotationally driven by a drive gear of a drive wheel train, and a pulley is provided at a position where the drive gear and the ring gear of the dial plate mesh with each other. Therefore, the meshing is maintained and a stable meshing relationship is obtained.

  The invention described in claim 2 of the present application is such that the pulley supporting the ring gear is provided at a position deviating from a virtual vertical line passing through the clock pointer shaft, and is opposite to the pulley that is axisymmetric with respect to the virtual vertical line. Since the second pulley for supporting the ring gear is provided on the timepiece support plate on the side, the first and second pulleys can better hold the dial plate.

  The invention described in claim 3 of the present application is provided with a disk gear rotatably, provided with a plurality of rotating ornament gears meshing with the disk gear, and further provided with a second wheel train meshing with the wheel train. Since any one of the plurality of rotating decoration gears is meshed with the second wheel train, both the dial and the rotating decoration gear can be rotated by a single motor unit.

  As described above, according to the present invention, in the mechanism for rotating the dial, a stable meshing relationship is obtained, the quality is stabilized, and the dimensional control of the gear for attaching the dial is facilitated, and thus the manufacture. A clockwork clock capable of reducing the cost can be obtained.

1 is a front view of a clockwork timepiece according to an embodiment of the present invention. It is a longitudinal cross-sectional schematic of the clockwork timepiece concerning the Example of this invention. It is a principal part front view of a clockwork timepiece concerning the Example of this invention. It is a principal part perspective view of the clockwork timepiece concerning the Example of this invention. FIG. 4 is a perspective view illustrating a train wheel configuration of a clockwork timepiece according to an embodiment of the present invention. It is a figure which concerns on the Example of this invention, and is a figure which shows a timepiece dial, (1) is a front view, (2) is a partially broken side view. It is a perspective view which shows the decoration gearwheel structure of the clockwork timepiece concerning the Example of this invention. It is a front view which shows the meshing state of the drive gear and ring gear of a wheel train concerning the Example of this invention. It is a perspective view which shows the pulley arrange | positioned at the meshing location of the drive gear and ring gear of a wheel train concerning the Example of this invention. It is a perspective view which shows the pulley which concerns on the Example of this invention and supports a ring gearwheel. It is a perspective view which shows the pulley which concerns on the Example of this invention and supports a ring gearwheel. It is the perspective view which looked at the pulley which concerns on the Example of this invention and supported the ring gearwheel in the upper part from the front upper direction. It is the perspective view which looked at the pulley which concerns on the Example of this invention from the back upper surface and supports a ring gearwheel in the upper part. It is a perspective view which shows the biasing means which elastically biases a pulley to the front-back direction (front and back direction) of a timepiece. It is a figure which shows the state which concerns on the Example of this invention and a timepiece dial rotates.

  Embodiments of the present invention will be described below with reference to the drawings. In the timepiece clock 1 of this example, the timepiece dial 2 rotates. The timepiece dial plate 2 is constituted by a ring-shaped plate 2a formed by cutting out a central portion, and a ring gear 2b is provided on the back side of the dial plate 2.

  The timepiece support plate 3 includes a motor unit M that rotates the timepiece dial plate 2. The motor unit M includes a train wheel 4 that is drivingly linked to the rotation shaft of the motor. In this example, the motor unit M is provided at the lower part of the timepiece, and the train wheel 4 is provided on the left side in a front view of the timepiece.

  The gear train 4 is provided with a drive gear 4 a, and this drive gear 4 a meshes with the ring gear 2 b of the dial 2.

  A pulley 5 that supports the ring gear 2b from the outer peripheral side is provided on the timepiece support plate 3 where the ring gear 2b meshes with the drive gear 4a of the train wheel 4. Thus, since the pulley 5 is provided in the location which meshes with the drive gear 4a of the train wheel 4, the meshing state of the location is maintained and a stable meshing relationship is obtained.

  The train wheel 4 further meshes with the train wheel 40, and the train wheel 40 meshes with one of the gears 11 and 11 for rotating the rotary ornament 10. Each of the gears 11 and 11 meshes with a disc gear 9 whose center of rotation is the location of the watch pointer shaft 6.

  Thus, from the motor unit M, the train wheel 4, the drive gear 4 a and the ring gear 2 b, that is, the drive path for rotating the dial 2, and the train wheel 4, the train wheel 40, the gear 11, and the disc gear 9. Since the other gears 11, 11, that is, the drive paths for rotating the rotary ornaments 10, 10 are provided, a plurality of members ( The dial 2 and the rotating ornament 10) can be activated at once (see FIGS. 3, 5, 7 and 8).

  In FIG. 1, reference numeral 11 a provided at the lower part of the front face of the watch is a constantly rotating gear, which is always rotated by another motor (not shown) unlike the rotating ornaments 10 and 10. The presence of the constantly rotating gear 11a indicates that the timepiece is operating, and can create the dynamic taste of a timepiece clock.

  Furthermore, a second pulley 7 is provided in the mechanical clock 1 of this example. That is, the pulley 5 that supports the ring gear 2 b is provided at a position that deviates from an imaginary vertical line passing through the timepiece pointer shaft 6. In this example, the pulley 5 is provided on the timepiece support plate 3 corresponding to 8 o'clock on the dial. In addition, the timepiece support plate 3 on the opposite side of the pulley 5 that is symmetric with respect to the virtual vertical line has a second pulley that supports the ring gear 2b at a location corresponding to 4 o'clock of the dial plate in this example. 7 is provided.

  Thus, since the second pulley 7 is provided on the pulley 5 that supports the ring gear and the timepiece support plate 3 on the opposite side of the pulley 5 that is axisymmetric with respect to the virtual vertical line, these first pulleys are provided. The dial can be held better by the second pulley.

  Further, in the timepiece clock 1 of this example, the dial 2 is supported by engaging the outer peripheral edge of the ring gear 2b of the dial 2 with the clock support plate 3 corresponding to 3 o'clock and 9 o'clock of the dial. Pulleys 8, 8 are provided.

  Further, in the timepiece 1 of this example, pulleys 12 for supporting the ring gear 2b from the outer peripheral side are provided at a plurality of locations on the timepiece support plate 3. In other words, in this example, an urging means 13 for urging the pulley downward is provided on at least one of the pulleys 12 above the imaginary horizontal line passing through the timepiece hand shaft 6.

  As shown in FIGS. 12 and 13, the urging means 13 urges the main body 12 a of the pulley 12 downward by a coil spring 12 d. In this example, the shaft portion 12b of the pulley 12 is loosely fitted to the timepiece support plate 3 via a bolt, and a spring locking portion 12c is extended to the shaft portion 12b opposite to the main body portion 12a to provide the pulley 12 Is forming. As a result, the body 12a of the pulley 12 is pressed and urged downward by the coil spring 12d, and can always support the ring gear 2b by pressing the ring gear 2b downward from the outer peripheral side.

  In this way, when the urging means 13 for constantly pressing and urging the pulley 12 downward is provided, the ring gear 2b is always pressed downward from the outer peripheral side by the main body 12a of the pulley 12, so that the drive gear described above is used. The meshing relationship between the ring gear 2b and the ring gear 2b can be maintained, and even if a dimensional error occurs in the shape of the ring gear 2b due to the action of the coil spring 12d, the main body portion 12a of the pulley 12 has the shape of the ring gear 2b. It can move following. Thereby, rattling and stagnation of the ring gear 2b can be prevented.

  As described above, in this example, the pulleys 5, 7, 8, and 12 for supporting the ring gear 2b from the outer peripheral side are provided at a plurality of locations on the timepiece support plate 3, and at least one of these pulleys is provided. A biasing means 30 is provided to press and bias the pulley in the front-rear direction (front to back direction of the timepiece).

  The biasing means 30 is configured by forming a plurality of notches 32 in the plate surface portion 31 of the timepiece support plate 3 and providing a convex portion 33 in the vicinity of the notches 32. That is, by using the plate surface portion 31 of the timepiece support plate 3 and forming a plurality of cutouts 32 in this, it is possible to provide spring properties to the cutout surface portions. And if the convex-shaped part 33 is formed in the surface part, this convex-shaped part 33 will contact | abut to the said pulley, and will urge the said pulley elastically.

  In this embodiment, all the pulleys 5, 7, 8, and 12 to be installed are provided with urging means 30 that elastically urges the timepiece in the front-rear direction. Thereby, when rattling and stagnation of the ring gear 2b occur, the load can be reduced.

  Further, since the urging means 30 is integrally formed on the plate surface portion 31 of the timepiece support plate 3 in this way, the number of parts can be reduced and the cost can be reduced.

  In the Karakuri clock of the present example configured as described above, an example of a Karakuri operation that operates at the normal time and has a melody performance function that is normally installed in this type of clock is as follows.

  At around the hour, the opening performance starts approximately 1 second later and lasts 12-13 seconds. The clock face at this time is in a normal state shown in FIG.

  When the opening performance is completed, the performance performance starts 1 second later. At the same time, the dial rotates 90 ° clockwise and stops driving at the position shown in FIG. This is about 5-6 seconds.

  Although the performance continues, it stops here for 4 seconds, and after dialing, the dial rotates 90 ° clockwise and stops driving at the position shown in FIG. 15 (3). This is about 5-6 seconds.

  Thereafter, the performance continues in the same manner, but stops here for 4 seconds. After the dial, the dial rotates 90 ° in the clockwise direction and stops driving at the position shown in FIG. This is about 5-6 seconds.

  When the performance performance is completed, after 1 second, the ending performance is started, and at the same time, the dial is rotated 90 ° in the clockwise direction and returned to the position shown in FIG. This is about 5-6 seconds. Further, the ending performance lasts for about 5 to 6 seconds, the performance ends, and the Karakuri operation ends.

  Further, the above-described mechanism operation is activated at the next hour, but the dial is rotated in the opposite direction to that described above. In the next mechanism operation, the dial rotates in the clockwise direction, and this operation is sequentially repeated.

  The mechanical clock of the present invention is excellent in labor saving of the number of parts, and can be suitably used as a wall clock, a table clock, and an alarm clock.

DESCRIPTION OF SYMBOLS 1 Timepiece clock 1a Movement 2 Clock face dial 2a Ring-shaped board 2b Ring gear 3 Clock support board 4 Wheel train 4a Drive gear 5 Pulley 6 Clock pointer shaft 7 Pulley 8 Pulley 9 Disc gear 10 Rotating ornament 11 Gear 11a Always rotating gear 12 Pulley 12a Body portion 12b Shaft portion 12c Spring locking portion 12d Coil spring 13 Energizing means 30 Energizing means 31 Plate surface portion 32 Notch 33 Convex shaped portion 40 Second wheel train M Motor unit

Claims (3)

In the timepiece clock 1 in which the clock face 2 rotates,
The timepiece support plate 3 includes a motor unit M that rotates the timepiece dial plate 2.
The timepiece dial plate 2 is composed of a ring-shaped plate 2a formed by cutting out a central portion,
A ring gear 2b is provided on the back side of the timepiece dial 2,
The motor unit M includes a train wheel 4 that is drivingly linked to the rotation shaft of the motor.
The ring gear 2b meshes with the drive gear 4a of the train wheel 4,
A clockwork timepiece characterized in that a pulley 5 for supporting the ring gear 2b from the outer peripheral side is provided on the timepiece support plate 3 where the ring gear 2b and the drive gear 4a of the train wheel 4 mesh.   The pulley 5 that supports the ring gear 2b is provided at a position that deviates from a virtual vertical line passing through the timepiece hand shaft 6, and is a timepiece support plate 3 on the opposite side of the pulley 5 that is symmetrical with respect to the virtual vertical line. 2. A clockwork timepiece according to claim 1, further comprising a second pulley 7 for supporting the ring gear 2b. A disk gear 9 having the pointer shaft 6 as a rotation center is rotatably mounted, and a plurality of rotating decoration gears 11 meshing with the disk gear 9 are rotatably mounted, and the motor unit M is provided. 2. A clockwork timepiece according to claim 1, wherein a second wheel train 40 meshing with the wheel train 4 is provided, and any one of the plurality of rotating ornament gears 11 is meshed with the second wheel train 40. .

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