• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a timepiece movement capable of suppressing what is liable to generate a malfunction of a hand. The movement includes: an indicator needle wheel which is arranged to be rotatable and to which an indicator needle (14) is mounted; an indicator needle stepping motor rotating and driving the indicator needle wheel in both directions; an hour wheel (51) rotatably mounted about a first axis of rotation (O) different from the axis of rotation of the indicator needle wheel, and having a first shaft (52) which extends along the first axis of rotation (O) and on the outer peripheral surface of which a contact portion (60) is provided on which the indicator needle (14) can abut, the distance of the contact portion (60) from the first axis of rotation (O) varying according to the position in the peripheral direction about the first axis of rotation (O); and an hour hand stepping motor rotating and driving the hour wheel (51), provided separately from the indicating hand stepping motor.
    公开号:CH715802A2
    申请号:CH01348/19
    申请日:2019-10-24
    公开日:2020-07-15
    发明作者:Fujiwara Toshiyuki；Ogasawara Kenji
    申请人:Seiko Instr Inc；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION
    1. Field of the invention
    The present invention relates to a timepiece movement and a timepiece.
    2. Description of the prior art
    [0002] Conventionally, in an electronic timepiece whose hands are driven by a stepping motor, a mechanism is mounted which corrects the position of the hand. In a timepiece in which the range of rotation of the hands is specified, a method of correcting the position of the needle is adopted whereby a wheel surmounted by a needle is rotated until it reaches the end of the needle. the range of rotation to abut therein (see, for example, patent document 1 (JP-A-2008-116435)). Patent document 1 discloses a timepiece equipped with a fan-shaped indicator, that is to say extending over an angular sector strictly less than 360 degrees, having a rotating indicator wheel, a motor. stepping rotating and driving the indicator wheel both in the normal direction and in the reverse direction, a stop in the normal direction limiting the rotation of the indicator wheel in the normal direction, and an indicator mounted on the indicator wheel .
    However, when the indicator wheel is at rest after it has come to a stop, there are cases where, depending on the rotational position of the rotor of the stepping motor, the rotor does not turn but is blocked even if a pulse is applied to the stepper motor. In view of this, in the invention disclosed in patent document 1, the position of the stopper in the normal direction of rotation is adjusted such that the pair of the directions of the magnetic poles of the rotor, when the indicator wheel is at rest following the abutment against the stop in the normal direction of rotation, is offset by a range of ± 30 ° from the kinematically stable position. Therefore, after abutting in the normal direction of rotation, the rotor can be reliably driven by applying a reverse signal.
    [0004] In recent years, there have been timepieces in which, apart from the hour / minute hands, etc. rotating around a position near the center of the dial, there is provided an indicator hand rotating around a position offset from the center of rotation of the hour hands / wheel, providing a function by which various pieces of information other than the times are displayed. In a timepiece of this type, it is necessary that the indicator hand does not come into contact with the shaft of the hour / minute hands, etc. That is, in the case where the indicator hand has a length greater than the center distance between the shaft of the hour / minute hands and the shaft of the indicator hand, the part d The clockwork is designed so that the indicator hand rotates over an angular range where it is not brought into contact with the shaft of the hour / minute hands, etc. to display information.
    [0005] In a conventional timepiece equipped with an indicator hand, however, it may happen that the indicator hand is deviated from the normal range of rotation due to an unexpected situation such as excessive application of pulses, which results in a situation where the indicator hand abuts the shaft of the hour / minute hands, etc. In such cases, it is difficult to predict the rotational position of the rotor at the time when the indicator needle has undergone this abutment. Thus, the timepiece is in a stuck state where the rotor does not rotate even if a pulse is applied to the stepping motor, and it is possible that this will cause the indicator hand to malfunction.
    SUMMARY OF THE INVENTION
    [0006] An object of the present application is to provide a timepiece movement and a timepiece capable of eliminating anything which could generate a malfunction of the hands.
    According to the present application, a timepiece movement is provided comprising: a first wheel which is arranged so as to be rotatable and to which a needle is mounted; a first motor rotating and driving the first wheel in both directions; a second wheel arranged to be rotatable about an axis different from the axis of rotation of the first wheel and having a shaft which extends along the axis and on an outer peripheral surface of which a part is provided contact on which the needle can come into abutment, the distance between the contact part and the axis being able to vary according to its position in the peripheral direction around the axis; and a second motor rotating and driving the second wheel, provided separately from the first motor.
    According to the present application, the second wheel is rotated in a state in which the needle is in contact with the contact part of the shaft of the second wheel, while it is possible to simultaneously generate spacing between the needle and the shaft of the second wheel or exerting pressure on the needle to move it. Therefore, even in the case where the needle comes into contact with the second wheel to place the rotor in a state in which it cannot be rotated, it is possible to rotate the rotor. So, it is possible to suppress the generation of needle malfunction.
    [0009] In the above movement of a timepiece, it is desirable that the contact part has a cut face.
    According to the present application, due to the cut face, the distance between the contact part and the axis can be changed depending on the position in the peripheral direction around the axis. Thus, it is possible to form a timepiece movement providing the advantageous effect mentioned above.
    [0011] In the above timepiece movement, it is desirable that the contact part has a pair of cut faces arranged parallel to each other.
    [0012] According to the present application, by rotating the second wheel by at least 180 °, it is possible to provide a spacing between the needle and the shaft of the second wheel, or to exert pressure on the needle to move it. In other words, compared to the case where there is only one cut face, it is possible to generate more quickly a spacing between the needle and the shaft of the second wheel, or to come and exert pressure on the needle to move it.
    [0013] In addition, at least part of the contact part is a portion which does not depend on the distance from the axis of the pair of cut faces, and which is at a greater distance from the axis than the cut face. Therefore, the maximum distance from the axis of the contact part does not change even when the cut face is arranged. In other words, compared to the case where three or more cut faces are provided, it is possible to generate a greater spacing between the needle and the shaft of the second wheel, or to exert pressure on the needle to move it. more significantly.
    [0014] Due to the above structure, even in the case where the needle comes into contact with the second wheel and the rotor is placed in a state in which it cannot rotate, it is possible to rotate the rotor more reliably. So, it is possible to suppress the generation of needle malfunction.
    In the timepiece movement described above, it is desirable that the contact part is offset from the axis.
    [0016] According to the present application, it is possible to vary the distance of the contact part from the axis according to the position in the peripheral direction around the axis. Therefore, it is possible to form a timepiece movement providing the advantageous technical effect mentioned above.
    In the timepiece movement described above, it is desirable that the first motor is equipped with a stator having a coil, and a 2 pole rotor.
    According to the present application, during the inversion movement of the rotor, there is a case where a pulse of rotation of the rotor in the normal direction is first applied to the coil. So, when the needle comes into contact with the shaft of the second wheel as a result of rotating the rotor in the normal direction, it is impossible to further rotate the rotor normally, so that the rotor is placed in a state. in which it is irreversible. Therefore, by the combination of the characteristics of the second wheel having a contact part as mentioned above, it is possible to provide a timepiece movement capable of not being in a state in which the rotor does not. can no longer perform inversion movement.
    In the clockwork movement mentioned above, the stator is equipped with a yoke having a housing hole for the rotor and in which the rotor is arranged; the yoke is equipped with a pair of magnetic saturation parts generating a pair of magnetic poles different from each other around the rotor housing hole by energizing the coil; the pair of magnetic saturation parts are arranged so that they are opposite to each other, with the center of rotation of the rotor interposed between them; in the rotor housing hole are formed a pair of cutouts exerting a retaining torque against the rotor; the pair of cut parts are provided so that they are opposite to each other, with the center of rotation of the rotor interposed between them; a straight line passing through the pair of cut portions is inclined at a predetermined angle in the direction of normal rotation of the rotor with respect to a straight line passing through the pair of saturation magnetic portions; and the contact portion is preferably formed such that upon normal rotation of the rotor, when the second wheel is rotated to be in a state in which the needle is kept in contact with the contact portion from upstream in the direction of needle travel, the rotor turns more than the predetermined angle.
    Here, we will refer to the direction in which the needle rotates when the rotor is actuated to perform a normal rotation as being the first direction. According to the present application, in the state where the axis of the magnetic poles of the rotor is located in a position where it is orthogonal to the straight line passing through the pair of magnetic saturation parts, the rotor strives to make a normal rotation to a position where the axis of the magnetic poles is orthogonal to a straight line passing through a pair of internal notches. In the case where the needle comes into contact with the contact part of the second wheel furthest from the axis from upstream in the first direction, when the second wheel is rotated to rotate the needle in the first direction, the rotor performs a normal rotation towards a stable stationary position according to the predetermined angle θ, and stops in the stable stationary position. When the second wheel is driven further into rotation, a gap is formed between the needle and the shaft of the second wheel as the rotor stops. Therefore, it is possible to rotate the rotor normally, so that it is possible to rotate the rotor in the reverse direction via the above-mentioned pulse. So, it is possible to suppress the generation of needle malfunction.
    In the timepiece movement described above, there is provided a control part controlling the first motor and the second motor; and in the case where the needle is brought into contact with the contact portion of the second wheel, each time the pulse rotating the second wheel is applied to the second motor a predetermined number of times, the control portion applies preferably a pulse rotating the needle once so as to move it away from the second wheel to the first motor.
    [0022] According to the present application, it is possible to periodically apply a direction reversal pulse to the first motor. Therefore, even if the needle contact position at the contact portion of the second wheel is not clear, it is possible to apply a direction reversing pulse to the first motor in the state. where a gap is formed between the needle and the shaft of the second wheel, or in the state where the needle is pushed and moved by the second wheel. Therefore, it is possible to reliably avoid a state in which the rotor cannot be rotated.
    In the timepiece movement described above, it is desirable that the predetermined number of times be one.
    According to the present application, it is possible to reliably apply a direction reversal pulse to the first motor in a state where a gap is formed between the needle and the shaft of the second wheel, or in a state where the needle is pushed and moved by the second wheel. Therefore, it is possible to more reliably escape from the state where the rotor cannot be rotated.
    In the timepiece of the present application, are provided the timepiece movement mentioned above, a first hand mounted on the first wheel and a second hand mounted on the second wheel.
    [0026] According to the present application, it is possible to provide a timepiece in which the generation of any malfunction of the first hand is suppressed.
    According to the present application, it is possible to provide a timepiece movement and a timepiece in which it is possible to suppress the generation of any malfunction of the hand.
    BRIEF DESCRIPTION OF THE DRAWINGS
    [0028]<tb> <SEP> FIG. 1 is a plan view of a timepiece according to a first embodiment.<tb> <SEP> Figure 2 is a sectional view of the timepiece of the first embodiment.<tb> <SEP> FIG. 3 is a block diagram illustrating the structure of the timepiece of the first embodiment.<tb> <SEP> FIG. 4 is a schematic view illustrating the structure of a stepping motor according to the first embodiment.<tb> <SEP> Fig. 5 is a schematic view illustrating the structure of the stepping motor of the first embodiment.<tb> <SEP> FIG. 6 is a perspective view of an hour wheel according to the first embodiment.<tb> <SEP> Fig. 7 is an operational diagram illustrating the operation in the normal direction of rotation of the stepping motor according to the first embodiment.<tb> <SEP> Fig. 8 is an operational diagram illustrating the operation of the stepping motor in the reverse direction of rotation according to the first embodiment.<tb> <SEP> Fig. 9 is a block diagram illustrating the operation in the reverse direction of rotation of the stepper motor of the first embodiment.<tb> <SEP> Fig. 10 is a block diagram illustrating the operation in the reverse direction of rotation of the stepper motor of the first embodiment.<tb> <SEP> Fig. 11 is a plan view illustrating an example of the operation in the case where an indicator hand comes into contact with the hour wheel in the timepiece according to the first embodiment.<tb> <SEP> Fig. 12 is a plan view illustrating an example of the operation in the case where the indicator hand is brought into contact with the hour wheel of the timepiece of the first embodiment.<tb> <SEP> Fig. 13 is a plan view illustrating an example of the operation in the case where the indicator hand is brought into contact with the hour wheel of the timepiece of the first embodiment.<tb> <SEP> FIG. 14 is a perspective view of an hour wheel according to a second embodiment.
    DESCRIPTION OF THE EMBODIMENTS
    [0029] In the following, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, an analog quartz-type electronic timepiece is taken as an example for a timepiece. In the following description, components performing the same function or an equivalent function are indicated by the same reference numbers. A redundant description of such components will not necessarily be repeated.
    [First embodiment]
    First of all, a timepiece 1 and a movement 10 according to the first embodiment will be described.
    (Timepiece)
    [0031] We generally refer to a "movement" to denote a mechanical body including a drive part of a timepiece. A dial and indicator hands are fitted to this movement, and the whole is placed in a timepiece case. Reference is made to the “assembly” of the timepiece to denote the resulting complete assembly thus obtained.
    [0032] Figure 1 is a plan view of the timepiece of the first embodiment.
    As illustrated in Figure 1, the whole of the timepiece 1 is equipped with the movement 10, a dial 11, an hour hand 12, a minute hand 13, and an indicator hand 14 to the interior (hand) of a timepiece case 4 including a case back (not shown) and a crystal 3. The hour hand 12 and the minute hand 13 indicate the time. The hour hand 12 and the minute hand 13 are mounted on a first output shaft 21 (see FIG. 2) provided in the movement 10, and rotate around a first axis of rotation O (axis). The first axis of rotation O is the central axis of the first output shaft 21. The indicator hand 14 indicates information different from the time information indicated by the hour hand 12 and the minute hand 13, such as type. mode currently executed by the timepiece 1. The indicator hand 14 is mounted on a second output shaft 22 (see figure 2) provided in the movement 10, and rotates about a second different axis of rotation P of the first axis of rotation O. The second axis of rotation P, which is the center axis of the second output shaft 22, is arranged parallel to the first axis of rotation O.
    The distance between the second axis of rotation P and the distal end of the indicator needle 14 is greater than that between the second axis of rotation P and the first output shaft 21 (see Figure 2). Therefore, the range of rotation of indicator needle 14 is normally less than 360 °, and is configured to spread over a fan-shaped angular sector avoiding the first output shaft 21.
    The dial 11 has a configuration similar to a disc. The dial 11 has a main display area corresponding to the hour hand 12 and the minute hand 13, and a sub-display area 16 corresponding to the indicator hand 14. In the main display area 15 There is provided a scale indicated by the distal ends of the hour hand 12 and the minute hand 13, which is arranged in a circumferential shape along the outer periphery of the dial 11. In the sub-display area 16, are arranged a ladder, letters, etc. indicated by the distal end of the indicator needle 14 in correspondence with the range of rotation of the indicator needle 14 and extending in an arcuate shape around the second axis of rotation P. In the present embodiment, thanks to the combination with the indicator needle 14, the sub-display area 16 can display, for example, the ratio of achievement to a target value of an action quantity, the type of mode being performed by timepiece 1, etc. The dial 11, the hour hand 12, the minute hand 13, and the indicator hand 14 are arranged to be visually recognizable through the glass 3.
    Projecting out of the side surface of the timepiece case 4, buttons 17 are arranged respectively at the portion corresponding to 2 o'clock, and to the portion corresponding to 4 o'clock. Buttons 17 are used, for example, for time correction, via which the time indication indicated by 12 hour hand and 13 minute hand is corrected, and for switching the current mode. execution to another by timepiece 1.
    (Movement)
    Figure 2 is a sectional view of the timepiece according to the first embodiment.
    As shown in Figure 2, the movement 10 is disposed between the dial 11 and the case back (not shown). The movement 10 drives the hour hand 12, the minute hand 13, and the indicator hand 14. In the following description, reference will be made to the axial direction to denote that in which the first axis of the movement extends. rotation O, which is the center of rotation of the 12 hour hand and 13 minute hand.
    [0039] FIG. 3 is a functional diagram ("block diagram") illustrating the structure of the timepiece of the first embodiment.
    As shown in Figure 3, the movement 10 is equipped with a plurality of stepper motors 30A, 30B and 30C, a plurality of gear trains 50A, 50B and 50C, a control part 70 , and a support 80. The support 80 is a plate, a gear bridge or the like. For example, it forms the outer contour of the movement 10. The bracket 80 supports the plurality of stepper motors 30A, 30B and 30C, and the plurality of gear trains 50A, 50B and 50C. The holder 80 may be formed as a separate unit removable from a main body of a timepiece. In this case, the movement 10 is treated as a semi-product or an intermediate product unlike the main body of a timepiece constituting a complete assembly.
    The plurality of stepping motors 30A, 30B and 30C is formed by the hour hand stepping motor 30A (second motor) driving the hour hand 12, the stepping motor -no minute hand 30B driving minute hand 13, and the indicator hand stepping motor 30C (first motor) driving indicator hand 14. In what follows, reference will simply be made to motors to designate stepper motors. In the following description, in the case that any of the motors among that corresponding to the hour hand motor 30A, the minute hand motor 30B, and the indicator hand motor 30C is specified, we will simply refer to the motor 30 to denote each stepping motor.
    Figures 4 and 5 are schematic views illustrating the structure of the engine.
    As shown in Figure 4, the motor 30 is equipped with a stator 31 in which is formed a rotor housing hole 40, and a rotor 32 rotatably arranged in the rotor housing hole 40. The motor 30 can rotate rotor 32 in both the normal and reverse direction of rotation. In Fig. 4, the arrow Dn indicates the normal direction of rotation of the rotor 32. In the present embodiment, the normal rotation (rotation in the normal direction) of the rotor 32 is a direction determined by the positional relationship between a part. magnetic saturation 42 and an internal notch 43 described below. The rotor 32 is driven in rotation about an axis extending in the axial direction. The rotor 32 is magnetized via 2 poles in the radial direction, whereby it exhibits magnetic polarity. The rotor 32 is rotatably supported by the support 80 (see Figure 3). A pinion is formed on the rotor 32 (not shown), meshing with toothed wheels of the gear train 50A, 50B and 50C.
    The stator 31 is equipped with a yoke 34, a magnetic core 35 magnetically attached to the yoke 34, and a coil 36 wound around the magnetic core 35. The yoke 34 consists of a plate using a high material. magnetic permeability such as alloy permalloy. The cylinder head 34 extends in a predetermined configuration in the axial direction. A circular rotor housing hole 40 is formed at the middle portion of the cylinder head 34. The rotor housing hole 40 extends through the cylinder head 34 in the axial direction. The term intermediate part is not restricted to the central part between the two ends of the cylinder head 34 but includes everything that extends between the two ends of the cylinder head 34.
    The magnetic core 35 is made of a material with high magnetic permeability such as permalloy. The magnetic core 35 is magnetically connected to both ends of the yoke 34. The aforementioned coil 36 is wound around the magnetic coil 35. When the coil 36 is energized, a magnetic flux flows along the magnetic core 35. and the cylinder head 34.
    Here, around the rotor housing hole 40 of the cylinder head 34, a pair of outer notches 41 is formed by cutting the outer edge of the cylinder head 34 towards the rotor housing hole 40. The pair of outer notches 41 are arranged opposite to each other, with the center of rotation of rotor 32 interposed between them. More specifically, the pair of outer notches 41 are arranged in positions deviating from each other by an angle of 180 ° around the center of rotation of the rotor 32. Each outer notch 41 is cut into a shape. arched. The portion of the yoke 34 around the rotor housing hole 40 is locally limited due to each outer notch 41. The portion of the yoke 34 made narrower due to the outer notches 41 constitutes the magnetic saturation portion 42.
    Each magnetic saturation portion 42 is formed so that it does not undergo magnetic saturation due to the magnetic flux of the rotor 32, and that it undergoes magnetic saturation increasing the magnetic resistance when the coil 36 is energized. Therefore, due to the generation of magnetic saturation at each magnetic saturation portion 42, the yoke 34 is magnetically divided in half around the rotor housing hole 40. The pair of magnetic saturation portions 42 are arranged so. that each part of magnetic saturation is opposite to each other, with the center of rotation of rotor 32 interposed between them. More specifically, the pair of saturation magnetic portions 42 are provided at positions deviated from each other by 180 ° around the center of rotation of rotor 32.
    As shown in Figure 5, the pair of magnetic saturation portions 42 generate a pair of different magnetic poles from each other around the rotor housing hole 40 by energizing the coil 36. The pair of Magnetic poles is generated on both sides of a straight line passing through the pair of magnetic saturation portions 42. When the pair of magnetic poles is energized, the rotor 32 comes to rest in a position where its magnetic pole axis is orthogonal to the straight line passing through the pair of magnetic saturation parts 42 (the state shown in FIG. 5). In the following, reference will be made to the intermediate rest position to denote the stop position of the rotor 32 when the magnetic pole axis of the rotor 32 is orthogonal to the straight line passing through the pair of saturation magnetic parts. 42.
    [0049] Further, as shown in Fig. 4, a pair of internal notches 43 (cutouts) are formed at the internal peripheral edge of the rotor housing hole 40. The pair of internal notches 43 is arranged so that each internal notch is disposed opposite to each other with the center of rotation of rotor 32 interposed between them. More specifically, the pair of internal notches 43 are disposed in positions deviating from each other by an angle of 180 ° around the center of rotation of the rotor 32. Each internal notch 43 is cut in an arcuate shape. For example, a straight line passing through the pair of internal notches 43 intersects with the straight line passing through the pair of saturation magnetic portions 42 at the center of rotation of the rotor 32. The straight line passing through the pair of internal notches 43 is inclined with respect to the straight line passing through the pair of magnetic saturation portions 42 at a predetermined angle θ which is less than 90 ° in the normal direction of rotation of the rotor 32. In others words, the normal direction of rotation of the rotor 32 corresponds to the direction in which the straight line passing through the pair of internal notches 43 is inclined less than 90 ° from the straight line passing through the pair of magnetic parts saturation 42.
    The internal notches 43 generate a retaining torque acting on the rotor 32. The internal notches 43 are formed as positioning parts for determining the rest position of the rotor 32 when the coil 36 is not energized. When its axis of the magnetic poles is in a position where it is orthogonal to the straight line passing through the pair of internal notches 43, the rotor 32 has minimum potential energy, and is at rest stably. In what follows, reference will be made to the stable rest position to denote the stop position of the rotor 32 when the magnetic pole axis of the rotor 32 is orthogonal to the straight line passing through the pair of internal notches 43. When the pair of magnetic poles of the stator 31 continue to be energized, the rotor 32 remains in the intermediate rest position, and when the excitation of the pair of magnetic poles of the stator 31 is stopped, it remains in the position of. stable rest.
    As shown in Figure 3, the plurality of gear trains 50A, 50B and 50C consists of: the hour hand gear train 50A transmitting the output of the hour hand motor 30A to the hour hand 12, the minute hand gear train 50B transmitting the output of the minute hand motor 30B to the minute hand 13, and the indicator hand gear train 50C transmitting the output of the indicator hand motor 30C to the indicator hand 14. The plurality of gear trains 50A, 50B and 50C have at least one toothed wheel rotatably mounted on the support 80. The hour hand gear train 50A is connected to rotor 32 of hour hand motor 30A. The minute hand gear train 50B is connected to the rotor 32 of the minute hand motor 30B. The indicator needle gear train 50C is connected to the rotor 32 of the indicator needle motor 30C. In the following, reference will be made to the indicator needle rotor 32 to denote the rotor 32 of the indicator needle motor 30C.
    As shown in Figure 2, the hour hand gear train 50A comprises an hour wheel 51 (second wheel). The hour wheel 51 is arranged coaxially with the first axis of rotation O. The hour wheel 51 is rotatably mounted about the first axis of rotation O. The hour wheel 51 is equipped with a first shaft 52 projecting from the dial 11 towards crystal 3 (see figure 1). The first shaft 52 has a cylindrical configuration extending along the first axis of rotation O. The first shaft 52 is the first output shaft 21. The hour hand 12 is mounted at the distal end of the first shaft 52. The hour wheel 51 is rotated in two directions by the hour hand motor 30A. By generating a normal rotation of the rotor 32 of the hour hand motor 30A, the hour wheel 51, when viewed from the glass side 3, rotates clockwise, causing the hour hand to rotate. clockwise 12 hour hand.
    The minute hand gear train 50B has a minute hand wheel 54. The minute hand wheel 54 is arranged coaxially with the first axis of rotation O. The needle wheel minute hand 54 is rotatably mounted around the first axis of rotation O. The minute hand wheel 54 is equipped with a second shaft 55 projecting from the dial 11 towards the crystal 3. The second shaft 55 has a configuration in the form of a column or cylindrical extending along the first axis of rotation O. The second shaft 55 is inserted into the first shaft 52 of the hour wheel 51, and protrudes towards the glass 3 by going beyond the first shaft 52 of the hour wheel 51. The second shaft 55 is the first output shaft 21. The minute hand 13 is mounted at the distal end of the second shaft 55. The minute hand 13 is arranged on the crystal side 3 with respect to the hour hand 12. The minute hand wheel 54 is driven in red tation in both directions by the 30B minute hand motor. By generating a normal rotation of the rotor 32 of the minute hand motor 30B, the minute hand wheel 54, seen from the crystal side 3, rotates clockwise, thereby inducing the minute hand 13 to turn clockwise.
    [0054] The indicator needle gear train 50C has an indicator needle wheel 57 (first wheel). The indicator needle wheel 57 is arranged coaxially with the second axis of rotation P. The indicator needle wheel 57 is rotatably mounted about the second axis of rotation P. The indicator needle wheel 57 is equipped with a third shaft 58 protruding from dial 11 towards the glass 3. The third shaft 58 has a columnar or cylindrical configuration extending along the second axis of rotation P. The third shaft 58 is the second output shaft 22. L ' Indicator hand 14 is mounted at the distal end of third shaft 58. Indicator hand 14 is arranged on the dial side 11 with respect to hour hand 12. Indicator hand wheel 57 is rotated in both directions by the motor indicator needle 30C. By generating a normal rotation of the indicator needle rotor 32, the indicator needle wheel 57, viewed from the lens 3 side, rotates clockwise, causing the indicator needle 14 to turn clockwise. of a watch.
    The indicator hand 14 can come into contact with a part of the outer peripheral surface of the first output shaft 21. In the present embodiment, on the outer peripheral surface of the first shaft 52 of the hour wheel 51, There is provided a contact portion 60 with which the indicator needle 14 can be contacted. The contact portion 60 is arranged in the same position as the indicator needle 14 in the axial direction. In other words, the contact portion 60 is arranged so as to be able to be superimposed on the indicator needle 14 when the latter is viewed in the direction orthogonal to the axial direction. The contact part 60 is provided on the dial side 11 of a mounting portion 52a of the hour hand 12 disposed on the first shaft 52 of the hour wheel 51.
    [0056] FIG. 6 is a perspective view of the hour wheel according to the first embodiment.
    As shown in Figure 6, the distance of the contact portion 60 vis-à-vis the first axis of rotation O varies according to the position in the peripheral direction about the first axis of rotation O. The contact portion 60 is equipped with a circumferential surface portion 61 extending in the axial direction, and in the peripheral direction around the first axis of rotation O according to a fixed radius of curvature, and a small diameter portion 62, with a diameter smaller than the circumferential surface portion 61. The small diameter portion 62 is formed by cutting a face in the outer peripheral surface of the first shaft 52 of the hour wheel 51. In the present embodiment, the portion of small diameter 62 is equipped with a pair of cut faces 63 formed by cutting two faces. The pair of cut faces 63 constitute identically configured surfaces parallel to one another. Therefore, the contact portion 60 is double-formed, symmetrically with respect to the first axis of rotation O.
    [0058] The contact part 60 is arranged such that when the hour wheel 51 rotates in a state where the indicator hand 14 is kept in contact with the contact part 60 from upstream in a clockwise direction of a watch around the second axis of rotation P, the indicator needle rotor 32 rotates more than the predetermined angle θ. More specifically, the contact portion 60 is configured such that the angle difference between the position of the indicator needle rotor 32 in the state that the indicator needle 14 is in contact with the small diameter portion 62 and the position of the indicator needle rotor 32 in the state where the indicator needle 14 is in contact with the circumferential surface portion 61 is larger than the predetermined angle θ mentioned above.
    As shown in Figure 3, the control part 70 is, for example, a motor control IC (integrated circuit). The control portion 70 generates a control signal driving the motor 30, and applies the generated control signal to the coil 36 of the motor 30 to drive the rotor 32. As the control signal, there are pulses of normal rotation. and reverse rotation pulses. The normal rotational pulse prompts the rotor 32, in the stable rest position, to perform a normal 180 ° rotation. As shown in Figure 7, the pulse of normal rotation energizes the pair of magnetic poles of stator 31 opposite to the magnetic poles of rotor 32, so that rotor 32 is pushed back.
    The reverse rotation pulse prompts the rotor 32, being in the stable rest position, to rotate 180 ° in the opposite direction. For example, the reverse rotation pulse includes a first pulse of the same polarity as the normal rotation pulse, a second pulse of an opposite polarity to the first pulse, and a third pulse of an opposite polarity to the second. impulse.
    As shown in Figure 8, the first pulse excites the pair of magnetic poles of the stator 31 opposite the magnetic poles of the rotor 32 so that the rotor 32 is pushed back. The first pulse causes rotor 32 to rotate normally from the stable home position. In other words, the first pulse causes the rotor 32 to tilt backwards in the normal direction of rotation, that is to say makes it rotate in the opposite direction. For example, the first pulse causes rotor 32 to rotate normally to a position where it does not go beyond the position where the axis of the magnetic poles of rotor 32 and the straight line passing through the pair of parts magnetic saturation 42 are parallel to each other.
    The second pulse is applied subsequently, after the first pulse. As shown in Figure 9, the second pulse excites the pair of magnetic poles of stator 31 such that a polarity results which is reversed from that exerted at the time the first pulse is applied. The second pulse attracts the rotor 32 which has been induced to make a normal rotation by the first pulse, and prompts it to make a reverse rotation. In other words, the second pulse transmits a "feedback reaction" to the rotor 32 which had been reversed in the opposite direction by the action of the first pulse. For example, the second pulse causes the rotor 32 to perform a reverse rotation to a position beyond the intermediate rest position.
    The adjustment of these pulses is not restricted to the relationship mentioned above relating to the position of the rotor 32 as long as it is an adjustment allowing the use of the swing in the opposite direction by the first pulse, and the feedback reaction via the second pulse.
    The third pulse is applied subsequently, following the second pulse. As shown in Figure 10, the third pulse energizes the pair of magnetic poles of stator 31 opposite the magnetic poles of rotor 32, causing repulsive movement of rotor 32. The third pulse again reverses the rotation of rotor 32, which had been reversed by the second pulse. For example, the third pulse reverses rotor 32 to a position beyond that of stable rest, and continues to be applied until the direction of rotation returns to normal. After stopping the application of the third pulse, the oscillation of the rotor 32 converges, by free oscillation, towards the stable rest position.
    Here, a stuck state in which the indicator needle 14 cannot be driven will be described.
    [0066] FIGS. 11 to 13 are plan views illustrating an example of operation in the case where the indicator hand comes into contact with the hour wheel in the timepiece of the first embodiment.
    As shown in Figure 11, when the indicator hand 14 deviates, in the direction of clockwise, from the normal range of rotation to come into contact with the first shaft 52 of the hour wheel 51, a stuck condition in which the indicator needle 14 cannot be driven may occur.
    For example, when the indicator needle rotor 32 is in the stable rest position, in the state where the indicator needle 14 is kept in contact with the first shaft 52 from upstream in the direction of clockwise, it is not possible to induce the indicator needle rotor 32 to rotate normally through the first pulse, which is a reversing pulse. Therefore, the movement of the indicator needle rotor 32 cannot be reversed by the reversing pulse, resulting in a stuck state in which the indicator needle 14 cannot be driven or clockwise. clockwise or counterclockwise.
    In view of the above, in order to escape such a blocked state, the control part 70 repeats the process of supplying a reversing pulse as input to the indicator needle motor 30C each time a Normal rotational pulse or reverse rotational pulse is inputted a predetermined number of times at the time of, for example, an adjustment. For example, each time a reverse rotation pulse is supplied to the input of an hour hand motor 30A, the control part 70 repeats the process of providing a reverse rotation pulse once input to the motor. indicator needle 30C. The control portion 70 can perform this operation of providing a pulse to the input of the hour hand motor 30A and of providing a pulse to the input of the indicator hand motor 30C simultaneously or alternately. In the present embodiment, the contact portion 60 of the hour wheel 51 is formed by dual symmetry with respect to the first axis of rotation O, such that the control portion 70 rotates the hour wheel 51, by example, at least 180 °.
    [0070] Therefore, as shown in Figure 12, in the case where the indicator hand 14 has been kept in contact with the circumferential surface portion 61 of the hour wheel 51, the small diameter portion 62 rotates up to to reach a position where it is opposite the indicator hand 14, while a gap is formed between the indicator hand 14 and the first shaft 52 of the hour wheel 51. In the case where the indicator hand 14 has been kept in contact with the small diameter portion 62 of the hour wheel 51, the hour wheel 51 rotates, while the indicator hand 14 is pushed counterclockwise due to of the difference in diameter of the contact portion 60 of the hour wheel 51. Next, the indicator hand 14 comes into contact with the circumferential surface portion 61. As a result, the rotation of the hour wheel 51 continues until 'to reach a position where the por The small diameter end 62 of the hour wheel 51 again faces the indicator hand 14, with a gap then being formed between the indicator hand 14 and the first shaft 52 of the hour wheel 51.
    As shown in Figure 13, in the state where a spacing is formed between the indicator hand 14 and the first shaft 52 of the hour wheel 51, the indicator hand 14 can rotate clockwise. 'a watch. Therefore, the indicator needle rotor 32 can rotate normally under the action of the first pulse, which is the reverse pulse. Thus, the indicator needle rotor 32 can rotate back under the action of the reversing pulse. Further, in the process in which the indicator hand 14 is pushed by the contact portion 60 of the hour wheel 51 to rotate counterclockwise, a counterclockwise rotational force is transmitted to the counterclockwise. indicator needle rotor 32. Therefore, also by virtue of the fact that a rotational force is applied to the rotor 32 in the reverse direction, the indicator needle rotor 32 can escape a state in which it cannot rotate.
    While in the case described above the indicator needle rotor 32 is in the stable rest position in a state where the indicator needle 14 is in contact with the first shaft 52 from upstream according to the clockwise, it is also possible in other cases to avoid the blocked state in a similar way. For example, a case may arise where the indicator needle rotor 32 is in the intermediate home position in a state where the indicator needle 14 is in contact with the first shaft 52 from upstream in a clockwise direction. 'a watch. In this case, even if the magnetic pole of the stator 31 is energized, the magnetic flux is parallel to the axis of the magnetic poles of the indicator needle rotor 32, so that the indicator needle rotor 32 does not rotate, and the indicator needle 14 cannot be driven. In view of this, by rotating the hour wheel 51, it is possible to cause the indicator hand rotor 32 to rotate from the intermediate rest position. Therefore, a rotational force is transmitted to the indicator needle rotor 32, so that the indicator needle rotor 32 can escape from a state in which it cannot rotate.
    As described above, in the movement 10 and the timepiece 1 of this embodiment, on the outer peripheral surface of the first shaft 52 of the hour wheel 51, there is provided the contact portion 60 with which the indicator needle 14 can come into contact with. The distance between the contact portion 60 and the first axis of rotation O varies according to the position in the peripheral direction about the first axis of rotation O. In this structure, by rotating the hour wheel 51 in a state where the indicator hand 14 is in contact with the contact portion 60 of the first shaft 52 of the hour wheel 51, it is possible to provide a spacing between the indicator hand 14 and the first shaft 52 of the hour wheel 51, or d '' exert pressure on the indicator needle 14 and move it. Therefore, even in the case where the indicator hand 14 comes into contact with the hour wheel 51 to put the indicator hand rotor 32 in a state in which it cannot be rotated, it is possible to rotate the rotor. indicator needle 32. Thus, it is possible to suppress the generation of a malfunction of the indicator needle 14.
    In addition, the contact part 60 has a cut face 63. Thanks to such a structure, due to the cut face 63, it is possible to vary the distance between the contact part 60 and the first axis of rotation O according to the position in the peripheral direction around the first axis of rotation O. Therefore, it is possible to form a movement 10 and a timepiece 1 providing the advantageous effect mentioned above.
    The contact portion 60 has a pair of cut faces 63. Thanks to such a structure, by rotating the hour wheel 51 by at least 180 °, it is possible to provide a spacing between the indicator hand 14 and the first shaft 52 of the hour wheel 51, or exert pressure against the indicator hand 14 and move it. In other words, compared to the case where only a cut face 63 is provided, it is possible to provide more quickly a spacing between the indicator hand 14 and the first shaft 52 of the hour wheel 51, or to exert against the hand. indicator 14 and move it.
    In addition, at least a part of the contact portion 60 constitutes the circumferential surface portion 61 without depending on the distance of the pair of cut faces 63 vis-à-vis the axis of rotation O, such so that the maximum distance between the contact portion 60 and the first axis of rotation O does not change even if cut faces 63 are provided. In other words, compared to the case where three or more cut faces are provided, it is possible to provide a greater spacing between the indicator hand 14 and the first shaft 52 of the hour wheel 51, or to come to press on the hand. indicator 14 and move it further.
    As described above, even in the case where the indicator hand 14 comes into contact with the hour wheel 51 to place the indicator hand rotor 32 in a state in which it cannot be rotated. , it is possible to rotate the indicator needle rotor 32 more reliably. Therefore, it is possible to suppress the generation of a malfunction of the indicator needle 14.
    The indicator needle motor 30C is equipped with the stator 31 having a coil 36, and the indicator needle rotor 32 with 2 poles. In such a structure, when reversing the movement of the indicator needle rotor 32, there are cases where, like the first pulse of the above-mentioned reversing pulses, a pulse prompting the indicator needle rotor 32 to perform a normal rotation is the first applied to the coil 36. Thus, when the indicator hand 14 is brought into contact with the first shaft 52 of the hour wheel 51 via a normal rotation of the indicator hand rotor 32, it is impossible to generate another normal rotation of the indicator needle rotor 32, so that the indicator needle rotor 32 is placed in a state in which it cannot rotate in the reverse direction. Therefore, by the combination of the characteristics of the hour wheel 51 provided with the contact portion 60 mentioned above, it is possible to provide a movement 10 capable of escaping a state in which the indicator hand rotor 32 cannot turn in reverse.
    In the cylinder head 34, the straight line passing through the pair of internal notches 43 is inclined with respect to the straight line passing through the pair of magnetic saturation parts 42 at the predetermined angle θ in the direction of normal rotation of the indicator hand rotor 32. The contact portion 60 is formed such that when the hour wheel 51 is rotated while it is in a state where the indicator hand 14 is held in position. contacting the upstream contact portion 60 in a clockwise direction, the indicator needle rotor 32 rotates more than the predetermined angle θ. In such a structure, in the state that the indicator needle rotor 32 is in the intermediate home position, the indicator needle rotor 32 attempts to rotate normally to the stationary stable position. In the case where the indicator hand 14 is brought into contact with the circumferential surface portion 61 of the hour wheel 51 upstream in the clockwise direction, when the indicator hand 14 is rotated in the clockwise to rotate the hour wheel 51 and bring the small diameter portion 62 of the hour wheel 51 into contact with the indicator hand 14, the indicator hand rotor 32 rotates normally according to the predetermined angle θ towards the stable stationary position, and stops in the stable stationary position. As the hour wheel 51 turns further, a gap is created between the indicator hand 14 and the first shaft 52 of the small diameter portion 62 of the hour wheel 51, while the indicator needle rotor 32 stops. . Therefore, it is possible to generate a normal rotation of the indicator needle rotor 32, so that it is possible to rotate the indicator needle rotor 32 in the reverse direction via a reversing pulse. Therefore, it is possible to suppress the generation of a malfunction of the indicator needle 14.
    In the event that the indicator hand 14 comes into contact with the contact portion 60 of the hour wheel 51, each time a normal rotation pulse or a reverse rotation pulse is applied to the needle motor hours 30A a predetermined number of times, the control part 70 applies a reverse rotational pulse to the indicator needle motor 30C once. With such a structure, it is possible to periodically apply a reverse rotational pulse to the indicator needle motor 30C. Therefore, even when the contact position of the indicator hand 14 on the contact portion 60 of the hour wheel 51 is not clear, it is possible to apply a reverse rotation pulse to the indicator hand motor. 30C in the state in which a gap is formed between the indicator hand 14 and the first shaft 52 of the hour wheel 51, or in the state in which the indicator hand 14 is pushed and moved by the hour wheel 51.
    [0081] Further, in the present embodiment, whenever a normal rotation pulse or a reverse rotation pulse is applied to the hour hand motor 30A once, the control portion 70 applies once a reverse rotation pulse to indicator needle motor 30C. Therefore, it is possible to reliably apply a reverse rotational pulse to the indicator hand motor 30C in the state that a gap is formed between the indicator hand 14 and the first shaft 52 of the hour wheel 51. , or in the state where the indicator hand 14 is biased by the hour wheel 51 and moved by the latter.
    [0082] Therefore, it is possible to reliably escape from the state that the indicator needle rotor 32 cannot be rotated in the reverse direction.
    While in the present embodiment, the small diameter portion 62 of the contact portion 60 of the hour wheel 51 is provided with a pair of cut faces 63, this should not be construed restrictively. . Three or more cut faces can be provided as long as it is possible to secure the necessary diameter difference (amount of face cut level) for the contact portion of the hour wheel. The arrangement of a large number of cut faces is effective because it reduces the angle by which the hour wheel is rotated when escaping from the blocked state. For example, by arranging four cut-out faces 63 on the first shaft 52 of the hour wheel 51 shown in FIG. 6, it is possible that the rotational angle of the hour wheel 51, at the time of the exhaust of the blocked state is 90 °. The provision of a large number of cut faces, however, involves an increase in production cost, so that the present embodiment adopts two cut faces only.
    [Second embodiment]
    In what follows, the second embodiment will be described with reference to FIG. 14. The second embodiment differs from the first embodiment in that the contact portion 160 of the hour wheel 51 is produced in as a circumferential surface offset from the first axis of rotation O. Apart from what is described below, the second embodiment is nevertheless identical to the first embodiment.
    [0085] FIG. 14 is a perspective view of the hour wheel of the second embodiment.
    As shown in Figure 14, the portion adjacent to the dial 11 relative to the mounting portion 52a of the hour hand 12 of the first shaft 52 of the hour wheel 51 of the second embodiment is formed according to a cylindrical configuration offset from the first axis of rotation O. Therefore, the contact portion 160 of the outer peripheral surface of the first shaft 52 of the hour wheel 51 with which the indicator hand 14 can come into contact has the shape of 'a circumferential surface offset from the first axis of rotation O. The distance of the contact portion 160 from the first axis of rotation O varies according to the position in the peripheral direction about the first axis of rotation O. contact 160 is equipped with a large diameter portion 161, where the distance vis-à-vis the first axis of rotation O is maximum, and a small diameter portion 162, where the distance vis-à-vis the first axis d The rotation O is minimal. The contact part 160 is formed integrally symmetrically with respect to the first axis of rotation O.
    The contact portion 160 is formed such that when the hour wheel 51 is rotated in a state where the indicator hand 14 is kept in contact with the contact portion 160 from upstream in the direction of clockwise around the second axis of rotation P, the indicator needle rotor 32 rotates more than the predetermined angle θ mentioned above. More specifically, the contact portion 160 is formed such that the difference in angle between the position of the indicator needle rotor 32 in the state where the indicator needle 14 is in contact with the small diameter portion 162 and the position of the indicator needle rotor 32 in the state where the indicator needle 14 is in contact with the large diameter portion 161 is not less than the predetermined angle θ mentioned above.
    In this way, the contact portion 160 of the hour wheel 51 is offset relative to the first axis of rotation O, so that by rotating the hour wheel 51 in the state where the indicator hand 14 is in contact with the contact portion 160 of the first shaft 52 of the hour wheel 51, it is possible to generate a spacing between the indicator hand 14 and the first shaft 52 of the hour wheel 51, or to rest against indicator needle 14 and move it. Therefore, it is possible to achieve the same advantageous effect as that obtained via the hour wheel 51 of the first embodiment.
    [0089] Also in the case where the hour wheel 51 of the second embodiment is employed, the control part 70 follows the same process as that of the first embodiment in order to escape the blocked state in which it is. the indicator hand 14 cannot be driven. In the present embodiment, the contact portion 160 is integrally formed symmetrically with respect to the first axis of rotation O, so that the hour wheel 51 turns d 'at least 360 °.
    The present invention is not restricted to the embodiments described above with reference to the drawings but can allow various variants without departing from the scope defined by its technical idea.
    [0091] For example, while in the above embodiments the control part 70 constitutes a part of the movement 10, the control part can be provided separately from the movement.
    Further, while in the above embodiments the cut face 63 or the offset outer peripheral surface is provided on the first shaft 52 of the hour wheel 51 in order to vary the distance from the contact portion 60, 160 vis-à-vis the first axis of rotation 0 in accordance with the position in the peripheral direction, this should not be interpreted restrictively. For example, a protruding part can be arranged on the outer peripheral surface of the first shaft 52 of the hour wheel 51.
    Further, while according to the above embodiments the hour hand 12 and the minute hand 13 are driven by different motors, this should not be construed restrictively. It is only necessary that the indicator hand 14 and the hour wheel 51 be driven independently of each other, and the hour wheel 51 and the minute hand wheel 54 can be connected to each other. The other is via a gear train, and the hour hand 12 and the minute hand 13 can be configured to be driven by only one motor.
    Apart from the above, the components of the embodiments described above can be replaced by other well known components as required without departing from the scope of the invention. Further, the embodiments described above can be combined with each other as needed.
    权利要求:
    Claims (9)
    [1]
    1. Movement (10) of a timepiece (1) comprising:a first wheel which is arranged to be rotatable, and to which a needle is mounted;a first motor rotating and driving the first wheel in both directions;a second wheel arranged to be rotatable about an axis different from the axis of rotation (O) of the first wheel and having a shaft which extends along the axis at a peripheral surface external of which is provided a contact part on which the needle can come into abutment, the distance between the contact part and the axis being able to vary according to the position in the peripheral direction around the axis; anda second motor rotating and driving the second wheel, provided separately from the first motor.
    [2]
    2. Movement (10) of a timepiece (1) according to claim 1, wherein the contact portion (60) has a cut face (63).
    [3]
    3. Movement (10) of a timepiece (1) according to claim 1, wherein the contact portion (60) has a pair of cut faces (63) arranged parallel to each other.
    [4]
    4. Movement (10) of a timepiece (1) according to claim 1, whereinthe contact part (60) is offset from the axis.
    [5]
    5. Movement (10) of a timepiece (1) according to one of claims 1 to 4, wherein the first motor is equipped with a stator (31) having a coil (36), and a 2 rotor. poles.
    [6]
    6. Movement (10) of a timepiece (1) according to claim 5, wherein the stator (31) is provided with a yoke (34) having a housing hole of the rotor (40), wherein the rotor is arranged;the yoke (34) being equipped with a pair of magnetic saturation parts generating a pair of magnetic poles different from each other around the rotor housing hole (40) by energizing the coil (36);the pair of magnetic saturation parts being provided so that they are opposite to each other, with the center of rotation of the rotor (32) interposed between them;in the rotor housing hole (40), a pair of cutouts exerting a retaining torque against the rotor being formed;the pair of cutout portions being arranged so that they are opposite to each other, with the center of rotation of the rotor (32) interposed between them;a straight line passing through the pair of cut portions being inclined at a predetermined angle in the normal direction of rotation of the rotor with respect to a straight line passing through the pair of saturation magnetic portions; andthe contact portion (60) being formed such that by normally rotating the rotor, when the second wheel is rotated in a state in which the needle is kept in contact with the contact portion (60) from upstream in the direction of needle travel, the rotor (32) rotates more than the predetermined angle.
    [7]
    7. Movement (10) of a timepiece (1) according to one of claims 1 to 6, further comprising a control part (70) controlling the first motor and the second motor, and wherein,each time a pulse rotating the second wheel is applied to the second motor a predetermined number of times, the control portion (70) applies once to the first motor a pulse rotating the needle so as to move it away from the second wheel in the event that the needle comes into contact with the contact portion (60) of the second wheel.
    [8]
    8. Movement (10) of a timepiece (1) according to claim 7, wherein the predetermined number of times is equal to one.
    [9]
    9. Timepiece (1) comprising:the movement (10) of a timepiece (1) as claimed in one of claims 1 to 8;a first needle mounted on the first wheel; anda second needle mounted on the second wheel.
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    同族专利:
    公开号 | 公开日
    JP6583944B1|2019-10-02|
    JP2020067368A|2020-04-30|
    CN111090231A|2020-05-01|
    US20200133205A1|2020-04-30|
    CN111090231B|2022-02-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2003215267A|2002-01-18|2003-07-30|Seiko Instruments Inc|Clock for inhibiting irregularity in moving of hands|
    DE602004018429D1|2003-01-28|2009-01-29|Seiko Epson Corp|MULTIFUNCTION WATCH|
    EP1746470A1|2005-07-20|2007-01-24|Breitling AG|Timepiece with calendar mechanism|
    EP2166419B1|2008-09-18|2013-06-26|Agenhor SA|Clockwork comprising a constant-force device|
    CN205445920U|2015-12-31|2016-08-10|惠州比亚迪电子有限公司|Module and intelligent wrist -watch are collected to energy|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2018200053A|JP6583944B1|2018-10-24|2018-10-24|Watch movement and watch|
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