• 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 invention relates to a display mechanism capable of reproducing a complex trajectory of the cage unit for achieving a design improvement, as well as a movement and a timepiece equipped with such a display mechanism. The display mechanism (1) according to the invention comprises: a cage unit (3) comprising an exhaust (20) and a regulator (30); and an operating unit (4) configured to differentiate the moving speed of the cage unit (3) with the passage of time and to move the cage unit (3) in the direction moving towards or away from a first axis (C1) which is the center of a display area (S), wherein the operating unit (4) moves the cage unit (3) so that the path followed when the caged unit (3) moves in the direction approaching the first axis (C1) which is the center of the display area (S) is extended by the trajectory followed when the caged unit (3) moves in the direction away from the first axis (C1) which is the center of the display area (S), and causes the motive energy from a power source (110) to be divided and transmitted as well. to the operating unit (4) as well as to the exhaust (20) and the regulator (30).
    公开号:CH709331B1
    申请号:CH3322015
    申请日:2015-03-11
    公开日:2019-10-31
    发明作者:Mori Yuichi
    申请人:Seiko Instr Inc；
    IPC主号:
    专利说明:

    Description
    1. Field of the invention This invention relates to a display mechanism, a movement, and a timepiece.
    2. Description of the Prior Art [0002] In addition to the time display function, a mechanical timepiece such as a wristwatch also has an ornamental function. So there are already known timepieces called skeleton-type mechanical timepieces with a case back made of a transparent material such as glass, making it possible to appreciate the functioning of the movement. In addition, mechanical timepieces are already known which, with the aim of improving design, are equipped with a display mechanism operating with the components of the movement. For example, Japanese Patent No. 4,737,634 (first patent document) discloses a mechanical timepiece equipped with the mechanism called the carousel tourbillon mechanism in which a cage unit with a spiral balance wheel rotates, with the unit at cage rotating around the center axis of the mechanical timepiece at a predetermined speed. According to the first patent document, in a movement display area, it is possible to recognize the time from the position of the cage unit through the glass of the transparent timepiece, and to see the operation exhaust mobile, anchor, sprung balance, etc. constituting the exhaust, as well as the regulator of the cage unit.
    However, in the mechanical timepiece described in the document of the prior art, the cage unit comprising the escapement and the regulator only rotate in a predetermined direction around the center of the timepiece in the movement display area, which means that their trajectory is rather monotonous. So there is the possibility of improving the design by following a complex trajectory.
    权利要求:
    Claims (8)
    [1]
    Summary of the Invention The present invention has been made in view of the above problem; an object of the invention is to provide a display mechanism capable of making a complex trajectory follow the cage unit to achieve an improvement in design, and a movement and a timepiece equipped with such a display mechanism.
    To achieve the above object, there is provided in accordance with the invention a display mechanism comprising: a movable cage unit and comprising an exhaust and a regulator; and an operating unit configured to differentiate the speed of movement of the cage unit with the passage of time and to move the cage unit in the direction approaching or away from the center of a display portion , the operating unit moving the cage unit so that the path followed when the cage unit moves in the direction approaching the center of the display portion is extended by the path followed when the unit cage moves in the direction away from the center of the display part and causes the driving energy from an energy source to be divided and transmitted both to the operating unit and to the exhaust and regulator.
    According to the invention, there is provided the operating unit which differentiates the speed of movement of the cage unit with the passage of time and which moves the cage unit in the direction approaching and moving away from the center of the display part, so that it is possible to reproduce a complex trajectory of the cage unit. In addition, the path followed when the cage unit moves in the direction approaching the center of the display portion is extended by the path followed when the cage unit moves in the direction away from the center of the display part, so that it is possible to reproduce a curved trajectory of the cage unit. As a result, it is possible to reproduce an ever more complex trajectory of the cage unit, so that it is possible to achieve an improvement in the design of the display mechanism.
    According to one embodiment of the invention, the operating unit is equipped with a cam to which part of the driving energy from the energy source is transmitted and which rotates around a first axis, and a lever unit configured to rotate relative to the cam; and the lever unit is equipped with an operating lever with at one end a follower in contact with the cam and configured to circulate around the first axis while oscillating during the rotation of the lever unit, and a unit with cage support lever at one end of which the cage unit is mounted and which at its other end is supported to be rotatable about a second axis located on the outer side in the radial direction of the cam and which circulates around the first axis while oscillating during the oscillation of the operating lever, the other end of the operating lever and the other end of the cage support lever unit being connected through a transmission part energy.
    In the embodiment of the invention mentioned above, the lever unit is equipped with an operating lever with at one end a follower in contact with the cam and configured to rotate around the first axis while oscillating during rotation of the lever unit, and a cage support lever unit, at one end of which the cage unit being mounted and which rotates about the first axis while oscillating during the oscillation of the lever operating mode, so that by changing the configuration of the cam, it is possible to arbitrarily adjust the frequency of rotation of the operating lever and the path of the cage unit. In addition, the cage support lever unit is
    CH 709 331 B1 supported to be rotatable about the second axis, and the other end of the operating lever and the other end of the cage support lever unit are connected through a transmission part energy, so that the lever unit of the cage unit can rotate peripherally around the first axis while oscillating in accordance with the set oscillation frequency and the speed of rotation of the operating lever. In this way, due to the configuration of the cam and the speed of movement of the follower relative to the cam, it is possible to adjust the trajectory of the cage unit provided in the cage support lever unit d 'in a desired manner, so that it is possible to reproduce a complex trajectory of the cage unit, making it possible to improve to a marked degree the design of the display mechanism.
    In one embodiment of the invention, the energy transmission part is formed by a cage lever pinion provided at the other end of the cage support lever unit, and a wheel lever formed at the other end of the operating lever.
    In this case therefore, the energy transmission part is formed of the cage lever pinion and the lever wheel, so that by changing the ratio in the number of teeth between the cage lever pinion and the lever wheel which mesh with each other, it is possible to reproduce an ever more complex trajectory of the cage unit, making it possible to improve the design of the display mechanism.
    In particular, by making the gear ratio of the lever wheel wider than the gear ratio of the cage lever pinion, it is possible to increase the oscillation frequency of the support lever unit cage to increase the oscillation frequency of the cage unit; and, by making the gear ratio of the lever wheel smaller than the gear ratio of the cage lever pinion, it is possible to reduce the oscillation frequency of the cage support lever unit to reduce the oscillation frequency of the cage unit. In this way, in addition to the configuration of the cam and the speed of movement of the follower relative to the cam, the gear ratio of the cage lever and the gear ratio of the lever wheel are changed, so being possible set a desired path for the cage unit. Therefore, it is possible to reproduce a complex trajectory of the cage unit with a simple structure, making it possible to improve the design of the display mechanism.
    In one embodiment of the invention, the lever unit comprises a planetary mechanism unit configured to transmit part of the motive energy from the energy source to turn an exhaust mobile of the , a lever bridge unit carrying the operating lever and the cage support lever unit, and rotating around the first axis, and a transmission wheel which meshes with the planetary mechanism unit and turning the mobile exhaust; the planetary mechanism unit comprises a first solar wheel which rotates around the second axis by the driving energy of the energy source, a second solar wheel arranged coaxially with the first solar wheel and capable of rotating at a different speed from that of the first solar wheel, a first planetary mechanism with a first planetary wheel meshing with the first solar wheel and the second solar wheel and configured to rotate around the second axis, and a second planetary mechanism with a second planetary wheel meshing with a lever unit gear wheel provided on the lever bridge unit and a first planetary mechanism gear wheel provided in the first planetary mechanism and configured to rotate about the second axis in accordance with the oscillation of the lever unit cage support; and the respective teeth numbers of the first sun wheel, the second sun wheel, the lever unit gear wheel, the gear wheel of the first planetary mechanism, the first planetary wheel, and the second planetary wheel are selected to prevent the rotational speed of the transmission wheel from fluctuating due to the oscillation of the cage support lever unit.
    According to one embodiment of the invention, the respective numbers of teeth of the first solar wheel, of the second solar wheel, of the lever unit toothed wheel, of the first toothed wheel of the planetary mechanism, of the first planetary wheel, and the second planetary wheel are chosen to prevent the rotational speed of the transmission wheel from fluctuating due to the oscillation of the cage support lever unit, so that even when the driving energy from the energy source is divided and used for guiding the exhaust of the cage unit and for the oscillation of the cage support lever unit, it is possible to transmit the driving energy from the second solar wheel to the exhaust of the cage unit so that the rotation speed of the exhaust mobile is fixed, without being affected by the oscillation of the cage support lever unit. Therefore, it is possible to provide a display mechanism capable of improving the design without affecting the accuracy of the time measurement.
    According to one embodiment of the invention, the cam is a heart-shaped cam equipped with an outermost part, the distance from the first axis is maximum, and an innermost part, whose distance at the first axis is minimal; the cam and the lever unit rotate in opposite directions; and the speed of rotation of the cam is three times the speed of rotation of the lever unit.
    While the cam makes three rotations, the lever unit rotates in the opposite direction, so that while the lever unit rotates clockwise, the follower of the operating lever can pass the outermost part and the innermost part of the cam four times each. Therefore, the cage unit provided in the cage support lever unit can rotate while going back and forth four times to move in the direction approaching or moving away from the first axis, so that it is possible to reproduce a complex trajectory such as a petal-shaped trajectory with the first axis in the center. Therefore, it is possible to provide a display mechanism capable of markedly improving the design.
    CH 709 331 B1 [0017] According to one embodiment of the invention, the cage unit is supported to be rotatable relative to the operating unit.
    By turning the cage unit, it is possible to turn the balance spring of the regulator, so that it is possible to compensate for the influence of the direction of the gravitational force. That is, the display mechanism is equipped with a mechanism called a vortex mechanism, which can suppress the change in the oscillation cycle of the balance spring due to the direction of the gravitational force, so that it is possible to achieve a marked improvement in terms of accuracy of time measurement and design.
    A movement according to the invention is equipped with the display mechanism described above.
    A timepiece according to the invention is equipped with the movement described above.
    According to the invention, by providing the display mechanism described above, it is possible to reproduce a complex trajectory of the cage unit, so that it is possible to provide a movement and a timepiece superior in design.
    According to the invention, there is provided an operating unit which differentiates the speed of movement of the cage unit with the passage of time and which moves the cage unit in the direction approaching or moving away from the center of the display part, so that it is possible to reproduce a complex trajectory of the cage unit. In addition, the operating unit moves the cage unit so that the path followed when the cage unit moves in the direction approaching the center of the display portion is extended by the path followed when the cage unit moves in the direction away from the center of the display portion, so that it is possible to reproduce a curved path of the cage unit. As a result, it is possible to reproduce an ever more complex trajectory of the cage unit, so that it is possible to achieve an improvement in the design of the display mechanism.
    Brief description of the drawings
    Fig. 1 is a plan view of the movement of a timepiece as seen from the front side.
    Fig. 2 is a perspective view of the movement of the timepiece from the front side.
    Fig. 3 is a side sectional view of the movement of the timepiece.
    Fig. 4 is a side sectional view of the movement of the timepiece.
    Fig. 5 is a side sectional view of the movement of the timepiece.
    Fig. 6 is an explanatory view of the path of transmission of the driving energy supplied by a movement barrel.
    Fig. 7 is a schematic diagram illustrating the construction of a planetary mechanism unit.
    Fig. 8 is an explanatory view illustrating the operation of a display mechanism.
    Fig. 9 is an explanatory view illustrating the operation of the display mechanism.
    Fig. 10 is an explanatory view illustrating the operation of the display mechanism.
    Detailed description of the preferred embodiments In the following, an embodiment of this invention will be described with reference to the drawings.
    In what follows, a mechanical wristwatch according to the embodiment (which corresponds to the "timepiece" in the claims) and a movement inserted in this wristwatch will be described before being described in detail. the display mechanism.
    Timepiece In general, the mechanical body comprising the driving part of a timepiece is what is called "movement". What is achieved by mounting a dial and hands to this movement and putting it all in a timepiece box for finishing is what is called the "whole" of the timepiece. Among the two sides of a main plate of the timepiece, the side where the glass of the timepiece box is located, that is to say the side where the dial is located, is what we call the "back side" of the movement. Among the two sides of the main plate, the side where the case back of the timepiece box is located, that is to say the side opposite the dial, is what is called the "side before ”of the movement.
    CH 709 331 B1 [0027] FIG. 1 is a plan view, seen from the front side, of a movement 101 of a timepiece 100, and FIG. 2 is a perspective view, seen from the front side, of the movement 101 of the timepiece 100.
    As shown in Figs. 1 and 2, the timepiece 100 is equipped with the movement 101. The movement 101 has a main plate 102. A center mobile 106 and a third mobile 107 constituting a front wheel train 105, an intermediate cam wheel 108, a movement barrel 110 (corresponding to the “energy source” in the claims), etc. are arranged on the front side (the front side of the plane of fig. 1) of movement 101.
    A winding stem 112 is rotatably inserted into a winding stem guide hole 102a of the main plate 102 (not shown in Fig. 1; see Fig. 2). The winding stem 112 is a timepiece component used, for example, when correcting the date and displaying the time (the time display and the wheel). The winding stem 112 is rotatably supported by the winding stem guide hole 102a, and can be removed, for example, in two steps, in the direction in which the winding stem 112 extends. In this process, the position in the winding direction of the winding stem 112 is determined by a switching apparatus (not shown) consisting of an adjusting lever, a rocker, a rocker spring, etc. which are arranged on the front side of the main plate 102.
    The front side surface of movement 101 is formed as a display area S (which corresponds to the "display part" in the claims). The display area S is covered with a box bottom (not shown) made of a transparent material such as glass. The user of the timepiece 100 can appreciate the operation of the components of the movement 101 in the display area S.
    The movement barrel 110 contains a mainspring (not shown) constituting the energy source of the timepiece 100. The mainspring of the movement barrel 110 is armed by turning the winding stem 112. And, the movement barrel 110 is rotated by the rotational force when the mainspring is disarmed. The driving energy supplied by the mainspring of the movement barrel 110 moves the indication hands (not shown) such as the hour hand, the minute hand, and the second hand, and, in addition to this directs a display mechanism 1 described below equipped with a cage unit 3 with an exhaust 20 and a regulator 30. In the present embodiment, a pair of movement barrels 110 is provided, thus being possible to obtain sufficient driving energy to drive the display mechanism 1. The pair of movement barrels 110 is connected in series by means of a barrel intermediate wheel 111. When sufficient driving energy can be obtained from a single movement barrel 110, the number of movement barrels 110 can be one.
    Figs. 3 to 5 are side sectional views of the movement 101 of the timepiece 100; fig. 3 is a side sectional view mainly comprising a cam 40; fig. 4 is a side sectional view mainly comprising a planetary mechanism unit 8; and fig. 5 is a side sectional view mainly comprising a cage unit 3. To facilitate the illustration, in FIGS. 3 and 4, part of the third mobile 107 is indicated by a double dotted line.
    As shown in Figs. 3 to 5, a movement barrel 110 meshes with the center mobile 106. When the movement barrels 110 rotate, the center mobile 106 rotates. The center mobile 106 meshes with the third mobile 107. When the center mobile 106 rotates, the third mobile 107 rotates.
    The third mobile 107 meshes with a lever unit hour wheel 65 turning an intermediate cam wheel 108 and a lever unit 5 described below.
    The intermediate cam wheel 108 meshes with a cam wheel 45 rotating the cam 40 described below. The driving energy from the movement barrels 110 is transmitted to the cam wheel 45 via the center mobile 106, the third mobile 107, and the intermediate cam wheel 108. Consequently, the cam wheel 45 rotates counterclockwise around a first axis C1 which is the center of the display area S at a rotation speed, for example, of three rotations every four minutes.
    The lever unit 5 described below is connected to a lever unit hours wheel 65. The driving energy from the movement barrels 110 is transmitted to the lever unit hours wheel 65 by means of the center mobile 106 and the third mobile 107. Consequently, the lever unit hour wheel 65 rotates clockwise around the first axis C1 at a speed of rotation, for example, one rotation every four minutes.
    The mobile center 106 and the third mobile 107 which constitute the front wheel train 105, the intermediate cam wheel 108, the movement barrels 110, the intermediate barrel wheel 111, etc. are rotatably supported by an adjusting wheel plate 103 and the main plate 102, a barrel and gear train bridge 104a, a center wheel bridge 104b, etc. on the rear side (the lower side in fig. 3) of the movement 101 relative to the adjusting wheel plate 103.
    As shown in FIG. 2, the adjusting wheel plate 103 is equipped with an annular part 103a and a drawing part 103b. The drawing part 103b is provided on the internal side of the annular part 103a. The drawing part 103b is formed to trace in the plan view the trajectory of the cage unit 3 of the display mechanism 1 described below. The drawing part 103b of the present embodiment is formed in the shape of a petal in the plan view.
    CH 709 331 B1 As shown in fig. 3, the adjusting wheel plate 103 is provided with a stationary gear 115. The stationary gear 115 is provided coaxially with the first axis C1. The stationary gear 115 meshes with a first transmission wheel 67 described below radially on the outer side of the lever unit hour wheel 65.
    Display mechanism [0041] Next, the display mechanism 1 will be described in detail.
    As shown in Figs. 3 to 5, the display mechanism 1 of this embodiment is equipped with a cage unit 3 and an operating unit 4. In the description which follows, the direction along the first axis C1 will be called the axial direction, the direction orthogonal to the first axis C1 will be called the radial direction, and the direction around the first axis C1 will be called the peripheral direction.
    Cage unit As shown in fig. 5, the cage unit 3 comprises a cage frame body 10, an exhaust 20, a regulator 30, and a cage unit shaft 18.
    The cage frame body 10 is formed by the arrangement of the first cage frame 11 to the fourth cage frame 14 in this order from the front side in the direction of the rear side of the movement 101 (from the side above the lower side of Fig. 5). The first cage frame 11 up to the fourth cage frame 14 are stacked at predetermined intervals by means of the collars 15a and 15b, and are joined by tenons 16.
    The exhaust 20 is an exhaust called crab tooth type exhaust mainly equipped with an exhaust mobile 21, a double plate 31, and an anchor 26.
    The exhaust mobile 21 is equipped with a shaft 22, an escape wheel 23 mounted on the shaft 22, and an exhaust pinion 24.
    Pivots are formed at both ends of the shaft 22. The shaft 22 of the exhaust mobile 21 is rotatably supported by the second cage frame 12 and the fourth cage frame 14 via d 'a step.
    A plurality of teeth are provided on the outer peripheral surface of the escapement wheel 23.
    The exhaust pinion 24 meshes with a stationary exhaust gear 78 provided on the cage support lever unit 7 described below.
    The double plate 31 is a component of the regulator 30, and it is also a component of the exhaust 20. The double plate 31 is the center of the cage unit 3, and is arranged coaxially with the center axis Q of a balance shaft 35 (hereinafter referred to as the “cage center axis Q”). The double plate 31 of this embodiment is formed in one piece with the balance shaft 35. In addition, the double plate 31 of this embodiment is provided on a wheel of the balance 36. And, a pin of pulse 32 can be brought into contact with the anchor 26 described below by a rotation of the double plate 31.
    As in an ordinary mechanical timepiece, the impulse pin 32 can be provided on the double plate 31.
    As in a conventional timepiece, the impulse pin 32 can be provided on the double plate 31.
    The anchor 26 is equipped with an anchor rod 27, and an inlet pallet and an outlet pallet (not shown).
    Pivots are formed at both ends of the anchor rod 27. The anchor rod 27 is rotatably supported by the second cage frame 12 and the third cage frame 13 via a bearing.
    On the side of the anchor 26 of the double plate 31, a pallet box 28 is provided. In the pallet box 28, the impulse pin 32 is engaged and separated by the rotation of the double plate 31. Consequently, the anchor 26 can rotate around the anchor rod 27 at a predetermined cycle.
    The input palette and the output palette are formed, for example, of rubies. By the rotation of the anchor 26, the entry pallet and the exit pallet can be engaged with and separated from the toothed part of the escapement wheel 23.
    The regulator 30 is a mechanism directing the exhaust 20, and is formed of a balance spring 38 with a balance shaft 35 serving as a shaft member, a balance wheel 36 mounted on the shaft balance 35, the aforementioned double plate 31, and a spiral spring (not shown).
    The two ends of the balance shaft 35 are rotatably supported by the first cage frame 11 and the third cage frame 13 by means of anti-vibration bearings 39 respectively capable of absorbing vibrations in axial direction and vibration in the radial direction.
    The exhaust mobile 21 rotates to bring the collision surfaces of the input pallet and the output pallet to come into contact with the balance spring of the balance spring 38, the rotational force of the mobile d '' exhaust 21
    CH 709 331 B1 then being accumulated as tension of the spring (the driving energy). The balance spring 38 undergoes a free oscillation and rotates around the axis of the cage center Q at a predetermined cycle thanks to the energy accumulated in the balance spring. A cage unit shaft 18 is formed in a columnar configuration. The end of the cage unit shaft 18 on the front side of the movement 101 is fixed to the third cage frame 13.
    In addition, the main body of the cage unit 18 is supported by means of a bearing so as to be able to rotate around the axis of the cage center Q with respect to the cage support lever unit. 7 described below.
    A cage pinion 19 is provided at the end of the cage unit shaft 18 on the rear side of the movement 101. The cage pinion 19 meshes with a second transmission wheel 79 (which corresponds to the "Transmission wheel" in the claims) provided in the cage support lever unit 7.
    The cage unit 3, constructed as described above, operates as follows.
    The driving energy from the movement barrels 110 is transmitted from the second transmission wheel 79 of the cage support lever unit 7 to the shaft of the cage unit 18. Consequently, the cage unit 3 rotates around the cage center axis Q, which is the center of rotation of the sprung balance 38. In this way, the cage unit 3 rotates around the cage center axis Q, the balance spring 38 of the regulator 30 then being rotated. That is, by leveling the influence of the direction of the gravitational force, the cage unit 3 suppresses the change in the oscillation cycle of the balance spring 38 due to the direction of the gravitational force. , thus serving as a mechanism called the vortex mechanism.
    In addition, with the rotation of the cage unit 3, the exhaust mobile 21 rotates around the axis of the cage center Q while rotating at the same time.
    In addition, when the anchor 26 rotates around the anchor rod 27 with the free oscillation of the balance spring 38, the input pallet and the output pallet of the anchor 26 engage with and are separated alternately from the escape wheel 23 of the escape wheel 21. When the inlet pallet or the outlet pallet is engaged with the escape wheel 23, the escape wheel 21 stops so temporary rotation. In addition, when the inlet pallet and the outlet pallet separate from the escapement wheel 23, the escapement mobile 21 rotates. These operations are repeated successively, the timepiece 100 then allocating time.
    Operating unit The operating unit 4 is a mechanism which differentiates the speed of movement of the cage unit 3 with the passage of time, and which moves the cage unit 3 in the direction approaching and moving away from the first axis C1, which is the center of the display area S, and is equipped with a cam 40 and a lever unit 5.
    As shown in FIG. 1, the cam 40 is a cam called a heart-shaped cam equipped with an innermost part 41, the distance to the first axis C1 of which is minimal, and an outermost part 42, whose distance from the first axis C1 is maximum; it is of an external configuration in the shape of a heart as seen from the axial direction. The main surface of the cam 40 on the front side of the movement 101 has a cam groove 43 over the entire periphery along the edge of the cam 40.
    The cam 40 is connected with a cam wheel 45 which meshes with an intermediate cam wheel 108 and which rotates around the first axis C1. The cam 40 rotates counterclockwise with the cam wheel 45 around the first axis C1 at a speed of rotation, for example, of three rotations every four minutes.
    As shown in FIG. 4, the lever unit 5 is equipped with an operating lever 50, a lever bridge unit 6, and a cage support lever unit 7. The lever bridge unit 6 supports the operating lever 50 and the cage support lever unit 7, and rotates around the first axis C1.
    The operating lever 50 is generally formed in a curved configuration, arched in a plan view, and is equipped with a lever shaft 51 serving as the center of rotation of the operating lever 50, an arm 53, and a lever gear 58.
    The lever shaft 51 is rotatably supported by the lever bridge unit 6 described below through a bearing.
    The arm 53 is fixed to the lever shaft 51, and is formed so as to extend while bending from the lever shaft 51 in the direction of the cam 40. At the end distal of the arm 53 (one end of the operating lever 50), a follower 54 is formed which is in contact with the cam 40. The follower 54 of this embodiment is formed by a roller 54a which is movable along the cam groove 43. The roller 54a rotates while being in contact with the side wall of the cam groove 43, the follower 54 then moving slowly in the cam groove 43.
    The lever toothed wheel 58 is located on the opposite side of the cam 40 with the lever shaft 51 lying between them, and is formed in a configuration of a sector of a circle, the center of which being the lever shaft 51. A plurality of teeth are formed on the arcuate portion of the lever gear 58 (i.e., on one end of the operating lever 50).
    CH 709 331 B1 The lever bridge unit 6 is equipped with a first lever unit bridge 61, a main lever unit plate 63, and a second unit bridge lever 62.
    The first lever unit bridge 61, the main lever unit plate 63, and the second lever unit bridge 62 are arranged in this order from the rear side in the direction of the front side of the movement 101 (from the lower side in the direction of the upper side of fig. 4). The first lever unit bridge 61, the main lever unit plate 63, and the second lever unit bridge 62 are stacked at predetermined intervals due to the collars 64, and are fixed by a tenon 69.
    The main lever unit plate 63 extends in the radial direction. One end of the main lever unit plate 63 is connected to a lever unit hour wheel 65 which meshes with the third mobile 107 and which rotates around the first axis C1. As a result, the lever unit 5 rotates clockwise around the first axis C1 with the lever unit hour wheel 65 at a speed of rotation, for example, one rotation every four minutes.
    The main lever unit plate 63 has an opening 63a, the center of which being a second axis C2 located radially on the external side of the operating lever 50. A first solar wheel 81 which constitutes the unit planetary mechanism 8 described below is passed through the opening 63a.
    In addition, the main lever unit plate 63 has a lever unit gear wheel 68. The lever unit gear wheel 68 is formed as a ring, the center of which being the second axis C2, and the first solar wheel 81 is passed between them. The lever unit toothed wheel 68 is fixed to the edge of the opening 63a of the main lever unit plate 63 by means, for example, of a bearing 68a. The lever unit toothed wheel 68 meshes with a second planetary wheel 97 described below.
    As seen from the axial direction, the first lever unit bridge 61 is formed as a ring, the center axis of which being the second axis C2. Between the first lever unit bridge 61 and the main lever unit plate 63, a first transmission wheel 67 is rotatably supported.
    The first transmission wheel 67 meshes with a stationary toothed wheel 115 fixed to the adjusting wheel plate 103 and the first sun wheel 81. When the lever unit 5 rotates around the first axis C1, the first wheel transmission 67 rotates around the first axis C1 while rotating, thus transmitting the driving energy to the first solar wheel 81. The first lever unit bridge 61 rotatably supports the end of the first solar wheel 81 on the side rear of movement 101 (the lower side in fig. 4) by means of a bearing.
    As seen from the axial direction, the second lever unit bridge 62 is formed in a configuration in the form of a sector of a circle, the center axis of which being the second axis C2. Between the second lever unit bridge 62 and the main lever unit plate 63, the lever shaft 51 of the operating lever 50 is rotatably supported by a bearing.
    In addition, the second lever unit bridge 62 rotatably supports the end on the front side of the movement 101 (the upper side in FIG. 4) of a cage lever pinion 77 which is provided on the cage support lever unit 7 described below by means of a bearing.
    In the axial direction, the cage support lever unit 7 is located between the second lever unit bridge 62 and the main lever unit plate 63, and is equipped with a frame body cage lever 70 and a planetary mechanism unit 8.
    The cage lever frame body 70 is formed by the arrangement of a first cage lever bridge 71, a main cage lever plate 73, and a second cage lever bridge 72 in this order from the front side in the direction of the rear side of the movement 101 (from the upper side in the direction of the lower side in fig. 4). The first cage lever bridge 71, the main cage lever plate 73, and the second cage lever bridge 72 are stacked at predetermined intervals by means of the collars 75, and are attached by a tenon 76.
    The first cage lever bridge 71 is formed, for example, by linearly connecting three ring-shaped elements.
    At its distal end (which corresponds to "one end of the cage support lever unit"), the first cage lever bridge 71 has an opening 71a at the center of which is the cage center axis Q. A cage unit shaft 18 is rotatably supported by the opening 71a through a bearing or the like.
    In addition, the first cage lever bridge 71 has a stationary gear wheel 78 for the exhaust mobile. The stationary gear 78 for the escapement mobile is formed as a ring, the center of which being the cage center axis Q, and the cage unit shaft 18 is passed therethrough. The stationary toothed wheel 78 of the escapement mobile meshes with the exhaust pinion 24 of the escapement mobile 21.
    At the proximal end of the first cage lever bridge 71 (which corresponds to the "other end of the cage support lever unit" in the claims), there is provided the cage lever pinion 77. The end of the cage lever pinion 77 on the rear side of the movement 101 is fixed to the first cage lever bridge 71, and its end on the
    CH 709 331 B1 front side of the movement 101 is supported by the second lever unit bridge 62 of the lever bridge unit 6 by a bearing so as to be able to rotate around the second axis C2.
    The cage lever pinion 77 meshes with the lever toothed wheel 58 of the operating lever 50. Consequently, the cage lever pinion 77 and the cage support lever unit 7 to which the pinion of cage lever 77 is fixed rotate around the second axis C2 in accordance with the oscillation of the operating lever 50, and, while doing so, rotate around the first axis C1 while oscillating. That is, the cage lever pinion 77 and the lever gear 58 of the operating lever 50 constitute a power transmission part 2, and the other end of the operating lever 50 and the other end of the cage support lever unit 7 are connected through the power transmission part 2.
    As seen from the axial direction, the second cage lever bridge 72 is formed as a ring at the center of which being the second axis C2. The second cage lever bridge 72 is of smaller external size than, for example, the first lever unit bridge 61.
    The second cage lever bridge 72 is supported by the main lever unit plate 63 of the lever bridge unit 6 by means of a bearing so as to be able to rotate around the second axis C2.
    The main cage lever plate 73 is formed to be substantially of the same external configuration as the first cage lever bridge 71.
    At the distal end of the main cage lever plate 73 (which corresponds to "one end of the cage support lever unit" in the claims), the cage unit shaft 18 is rotatably supported by a bearing.
    In addition, at the proximal end of the main cage lever plate 73, a second sun wheel 82 which constitutes the planetary mechanism unit 8 described below is rotatably supported.
    Between the first cage lever bridge 71 and the main cage lever plate 73, and between the second axis C2 and the cage center axis Q, a second transmission wheel 79 is rotatably supported. The second transmission wheel 79 meshes with a toothed part of the second solar wheel 82a of the second solar wheel 82 and a cage pinion 19. When the cage support lever unit 7 rotates around the second axis C2, and, all by doing this, rotates around the first axis C1 while oscillating, the second transmission wheel 79 rotates around the second axis C2 in accordance with the oscillation of the cage support lever unit 7, and rotates at the same time.
    The second transmission wheel 79 transmits the driving energy of the movement barrels 110 to the cage unit
    3. Consequently, the motive energy of the movement barrels 110 is transmitted to the cage unit 3, which rotates around the axis of the cage center Q, which is the center of rotation of the balance-spring 38. in addition, with the rotation of the cage unit 3, the motive energy of the movement barrels 110 is transmitted to the exhaust mobile 21, which rotates around the cage center axis Q while rotating.
    Planetary mechanism unit The planetary mechanism unit 8 is arranged on the internal side of the cage lever frame body 70, and it transmits part of the motive energy from the movement barrels 110 serving as a source of energy to the cage unit 3, thereby turning the cage unit 3 and the exhaust mobile 21 of the exhaust 20 which is mounted on the cage unit 3.
    The planetary mechanism unit 8 is equipped with the first solar wheel 81, the second solar wheel 82, a first planetary mechanism 91, and a second planetary mechanism 96. In the following, the components of the planetary mechanism unit 8 will be described in detail.
    The first solar wheel 81 is provided coaxially with the second axis C2, and its end on the rear side of the movement 101 is supported in order to be able to rotate relative to the first lever unit bridge 61 of the unit to lever bridge 6.
    At its end on the rear side of the movement 101, the first solar wheel 81 has a toothed part of the first solar wheel 81a, and, at its end on the front side of the movement 101, it has a pinion of the first solar wheel 81b.
    The toothed part of the first solar wheel 81a is located between the first lever unit bridge 61 and the main lever unit plate 63, and meshes with the first transmission wheel 67. The pinion of the first solar wheel 81b meshes with a first planetary wheel 93 constituting the first planetary mechanism 91.
    The second solar wheel 82 is arranged coaxially with the first solar wheel 81 (that is to say, coaxially with the second axis C2). The part of the second solar wheel 82 on the front side of the movement 101 with respect to the medium in the axial direction is rotatably supported with respect to the first cage lever bridge 71 and the main cage lever plate 73 of the cage support lever unit 7. The second solar wheel 82 is divided from the first solar wheel 81, and it can rotate at a different speed from that of the first solar wheel 81.
    The second solar wheel 82 has a toothed part of the second solar wheel 82a at its end on the front side of the movement 101, and a second solar wheel pinion 82b at its end on the rear side of the movement 101.
    CH 709 331 B1 [0105] The toothed part of second solar wheel 82a meshes with the second transmission wheel 79. The pinion of second solar wheel 82b meshes with the first planetary wheel 93 constituting the first planetary mechanism 91. [0106] The first planetary mechanism 91 is equipped with a drive 92, the first planetary wheel 93, and a first gear wheel of planetary mechanism 94.
    Coach 92 is equipped with a pair of coach plates (a rear side coach plate 92a and a front side coach plate 92b). Coach 92 is formed by stacking the rear side coach plate 92a and the front side coach plate 92b at a predetermined interval by virtue of a collar 88, and being secured by a stud 89 or the like.
    The rear side drive plate 92a is supported so that it can rotate relative to the first sun wheel 81 and the main lever unit plate 63 by means of a bearing 95, a bearing, etc. . The front side drive plate 92b is supported so that it can rotate relative to the main cage lever plate 73 by means of a bearing, a bearing, etc. Consequently, the trainer 92 can turn around the second axis C2.
    The first planetary wheel 93 is supported so that it can rotate relative to the driver 92 by means of a bearing located radially on the external side of the second axis C2.
    The first planetary wheel 93 has a toothed part of the first planetary wheel 93a at its end on the front side of the movement 101, and a pinion of the first planetary wheel 93b on the rear side of the movement 101 relative to the toothed part of first planetary wheel 93a.
    The toothed part of the first planetary wheel 93a meshes with the pinion of the second solar wheel 82b of the second solar wheel 82. The first planetary wheel pinion 93b meshes with the pinion of the first solar wheel 81b of the first solar wheel 81.
    Here, the coach 92 can rotate around the second axis C2. Therefore, by the rotation of the trainer 92, the first planetary wheel 93 rotates, and, at the same time, rotates around the second axis C2.
    The first planetary mechanism toothed wheel 94 is fixed to the rear side drive plate 92a of the driver 92 by means of a bearing 95.
    The first planetary mechanism toothed wheel 94 meshes with a second planetary wheel 97 constituting a second planetary mechanism 96 described below.
    The second planetary mechanism 96 has a second planetary wheel 97.
    On the radially outer side of the second axis C2, the second planetary wheel 97 has passed through the second cage lever bridge 72, and is rotatably supported by means of a bearing.
    The second planetary wheel 97 has a toothed part of a second planetary wheel 97a at its end on the front side of the movement 101, and has a second planetary wheel pinion 97b on the rear side of the movement 101 relative to the second bridge of cage lever.
    The toothed part of the second planetary wheel 97a meshes with the first gear of the planetary mechanism 94 of the first planetary mechanism 91. The pinion of the second planetary wheel 97b meshes with the gear of the lever unit 68 of the unit to lever bridge 6.
    Here, the second cage lever bridge 72 which constitutes the cage lever frame body 70 can rotate around the second axis C2. Thus, the second cage lever bridge 72 (that is, the cage lever frame body 70) functions as the driver of the second planetary mechanism 96. When the cage lever frame body 70 (cage support lever unit 7) rotates around the second axis C2 in accordance with the oscillation of the operating lever 50, the second planetary wheel 97 rotates, and, at the same time, rotates around the second axis C2 in the same direction as the rotational direction of the cage support lever unit 7. At this time, the driver 92 of the first planetary mechanism 91 which meshes with the second planetary wheel 97 rotates around the second axis C2 in a direction opposite to the rotating direction of the second planetary wheel 97. Furthermore, the first planetary wheel 93 mounted on the driver 92 of the first planetary mechanism 91 rotates, and, at the same time, rotates around the second axis C2 in an opposite direction to the rotational direction of the second planetary wheel 97.
    Operation [0120] FIG. 6 is an explanatory view illustrating the transmission path for the driving energy supplied by the movement barrels 110.
    Next, the driving power transmission path in the display mechanism 1, constructed as described above, will be described with reference to FIG. 6. Concerning the reference numbers of the components and shafts of the display mechanism 1, reference may be made to figs. 3 to 5.
    As shown in FIG. 6, the motive energy supplied by the movement barrels 110 is transmitted to the third mobile 107 through the center mobile 106 before being divided. That is to say, part of the motive energy transmitted by the movement barrels 110 to the third mobile 107 (hereinafter called the "first motive energy
    CH 709 331 B1
    P1 ") is transmitted to the cam wheel 45 via the intermediate cam wheel 108 which meshes with the third mobile 107. In addition, the remaining part of the motive energy transmitted by the movement barrels 110 to the third mobile 107 (hereinafter referred to as the “second driving energy P2”) is transmitted to the lever unit hour wheel 65 which meshes with the third mobile 107.
    When the first driving energy P1 is transmitted to the cam wheel 45, the cam wheel 45 and the cam 40 rotate anti-clockwise around the first axis C1 at a rotation speed of three rotations every four minutes.
    When the second driving energy P2 is transmitted to the lever unit hour wheel 65, the lever unit hour wheel 65 and the lever unit 5 rotate clockwise around the first axis C1 at a rotation speed of one rotation every four minutes.
    At this time, the follower 54 of the operating lever 50 of the lever unit 5 rotates clockwise around the first axis C1 along the cam groove 43 while it is in sliding contact with the cam groove 43 of the cam 40 which is rotated by the first driving energy P1.
    Here, the cam 40 is equipped with the innermost part 41 and the outermost part 42. Therefore, while moving from the innermost part 41 in the direction of the outermost part 42, the follower 54 of the operating lever 50 moves away from the first axis C1, and, when it moves from the outermost part 42 in the direction of the innermost part 41, it moves in the direction approaching the first axis C1. Consequently, the operating lever 50 rotates around the first axis C1 while oscillating.
    The cage support lever unit 7 which is connected to the operating lever 50 via the energy transmission part 2 rotates around the first axis C1 while oscillating around the second axis C2. As a result, the cage unit 3 mounted at the distal end (one end) of the cage support lever unit 7 differentiates its speed of movement with the passage of time, and can move in the approaching direction from or away from the first axis C1, which is the center of the display area S. The trajectory of the cage unit 3 will be described in detail below. In this way, the first driving energy P1 is used mainly for the oscillation of the cage support lever unit 7 and the movement of the cage unit 3. Part of the first driving energy P1 is transmitted to the second planetary mechanism 96 of the planetary mechanism unit 8 with the oscillation of the cage support lever unit 7. As a result, the second planetary wheel 97 rotates, and, at the same time, rotates around the second axis C2 in the same rotational direction as the cage support lever unit 7.
    In addition, the first transmission wheel 67 provided on the lever bridge unit 6 of the lever unit 5 meshes with the stationary toothed wheel 115. Therefore, with the rotation of the lever unit 5, the first transmission wheel 67 rotates around the first axis C1 while rotating. Consequently, the second driving energy P2 is transmitted to the cage unit shaft 18 of the cage unit 3 by the planetary mechanism unit 8 having the first solar wheel 81 meshing with the first transmission wheel 67, and the second transmission wheel 79 meshing with the second sun wheel 82 of the planetary mechanism unit 8. Consequently, the cage unit 3 rotates around the cage center axis Q, which is the center of rotation of the balance spring 38. Furthermore, with the rotation of the cage unit 3, the exhaust mobile 21 rotates around the axis of the cage center Q, and, at the same time, rotates. In this way, the second driving energy P2 is used mainly for the rotation of the lever unit 5 and the rotation of the cage unit 3 and of the exhaust mobile 21.
    The second transmission wheel 79 rotates around the second axis C2, and, at the same time, rotates in accordance with the oscillation of the cage support lever unit 7 thanks to the first driving energy P1. Here, if the operating unit 4 is not equipped with the planetary mechanism unit 8, the rotation of the second transmission wheel 79 in accordance with the oscillation of the cage support lever unit 7 is transmitted to the second transmission wheel 79. That is to say, the second driving energy P2 which rotates the second transmission wheel 79 at a fixed speed and the first driving energy P1 fluctuating the speed of rotation of the second wheel transmission 79 are made to the cage unit 3, so that the fluctuation is generated in the speed of rotation of the cage unit 3 and the exhaust mobile 21, and it is feared that the measurement accuracy may deteriorate of the time of the timepiece 100.
    In contrast, the display mechanism 1 of this embodiment is equipped with the planetary mechanism unit 8, and the respective numbers of teeth of the first sun wheel 81, of the second sun wheel 82, of the lever unit toothed wheel 68, first planetary gear wheel 94, first planetary wheel 93, and second planetary wheel 97 are set to cancel the fluctuation in the rotation speed of the second transmission wheel 79 due to the oscillation of the cage support lever unit 7. This will be described more specifically below.
    [0131] FIG. 7 is a schematic diagram illustrating the construction of the planetary mechanism unit 8.
    As shown in FIG. 7, assuming that the number of teeth of the first sun wheel pinion 81b of the first sun wheel 81 is Za, that the number of teeth of the first planetary wheel pinion 93b of the first planetary wheel 93 is Zb, that the number of teeth of the toothed portion of the first planetary wheel 93a of the first planetary wheel 93 is Zc, that the number of teeth of the second solar wheel pinion 82b of the second solar wheel 82 is Zd, that the number of teeth of the toothed wheel d lever unit 68 is Ze, that the number of teeth of the second planetary wheel 97b of the second planetary wheel 97 is Zf, that the number of teeth of the toothed part of
    CH 709 331 B1 second planetary wheel 97a of the second planetary wheel 97 is Zg, and the number of teeth of the first planetary gear wheel 94 is Zh, the numbers of teeth Za to Zh are set to cancel the fluctuation in the rotation speed of the second transmission wheel 79 caused by the oscillation of the second cage lever bridge 72 (the cage support lever unit 7).
    In the present embodiment, when the adjustment is made, for example, so that the number of teeth Za of the pinion of first sun wheel 81b of the first sun wheel 81 is 15, that the number of teeth Zb of the first planetary wheel pinion 93b of the first planetary wheel 93 is 15, that the number of teeth Zc of the toothed portion of the first planetary wheel 93a of the first planetary wheel 93 is 30, that the number of teeth Zd of the pinion of the second solar wheel 82b of the second solar wheel 82 is 10, that the number of teeth Ze of the gear unit toothed wheel 68 is 45, that the number of teeth Zf of the second planetary wheel pinion 97b of the second planetary wheel 97 is 15, that the number of teeth Zg of the second planetary gear toothed part 97a of the second planetary wheel 97 is 15, and the number of teeth Zh of the first planetary gear wheel 94 is from 30 it is p Impossible to turn the second solar wheel 82 in the same rotational direction and at the same speed of rotation of the second cage lever bridge 72, with the first solar wheel 81 being fixed. Consequently, it is possible for the planetary mechanism unit 8 to transmit the second motive energy P2 to the cage unit 3, the influence of the fluctuation in the speed of rotation attributable to the oscillation of the unit at cage support lever 7 due to the first driving energy P1, which is generated in the gear wheel on the downstream side of the second sun wheel 82 in the direction of energy transmission (the second transmission wheel 79 in the present embodiment), being deleted.
    Next, the operation of the display mechanism 1 of this embodiment will be described.
    [0135] Figs. 8 to 10 are diagrams illustrating the operation of the display mechanism 1. In fig. 8 to 10, the components of movement 101 other than those of display mechanism 1 are indicated by thin lines. The path K of the cage center axis Q of the cage unit 3 of the display mechanism 1 is indicated by a double dotted line. In what follows, the axis which, as seen by the axial direction, passes the first axis C1 and which is orthogonal to the winding stem 112 will be called the X axis; in fig. 8 to 10, the right side will be called the + X side, and the left side will be called the -X side. In addition, the axis which passes the first axis C1 and which is orthogonal to the direction X will be called the axis Y; in fig. 8 to 10, the top side will be called the + Y side, and the bottom side will be called the -Y side. In the following description, the X-Y orthogonal coordinate system will be used if necessary. As for the reference numbers of the components and shafts of the display mechanism 1, reference can be made to figs. 3 to 5.
    As shown in FIG. 8, in the operation described below, the cage unit 3 moves away from the first axis C1 in the state in which the innermost part 41 of the cam 40 is located in the zone (+ X, -Y ), the follower 54 of the operating lever 50 is located in the innermost part 41 of the cam 40, and the cage center axis Q of the cage unit 3 is matched with the first axis C1 which is the center of the display area S (this will be called hereinafter “the initial state of the display mechanism 1”); then the cage unit 3 moves in the direction approaching the first axis C1 until the cage center axis Q of the cage unit 3 matches again with the first axis C1. As described above, the cage unit 3 is a mechanism called the vortex mechanism to which motive energy is transmitted from the movement barrels 110 and which always revolves around the center axis of the cage Q.
    As shown in FIG. 8, in the initial state of the display mechanism 1, the innermost part 41 of the cam 40 is situated in the zone (+ X, -Y), and its outermost part 42 is situated in the zone ( -X, + Y), In addition, the follower 54 of the operating lever 50 is located at the innermost part 41 of the cam 40. At this time, the cage unit 3 provided at the distal end of the the cage support lever unit 7 is arranged so that, as seen from the axial direction, the cage center axis Q and the first axis C1 coincide with each other.
    [0138] Then, with the passage of time, the cam 40 rotates anti-clockwise around the first axis C1, and the operating lever 50 rotates around the first axis C1. At this time, the cam 40 rotates at a rotational speed of three rotations every four minutes. The operating lever 50 rotates around the first axis C1 at a rotational speed of one rotation every four minutes. The follower 54 of the operating lever 50 moves clockwise around the first axis C1 along the cam groove 43 while being in sliding contact with the cam groove 43.
    In addition, the follower 54 of the operating lever 50 moves in the cam groove 43 from the innermost part 41 in the direction of the outermost part 42 of the cam 40. Therefore, the follower 54 of the operating lever 50 moves in a rotational manner around the first axis C1 while moving away from the first axis C1. Consequently, due to the movement of the follower 54, the operating lever 50 moves around the first axis C1 while rotating (oscillating) clockwise around the shaft of the lever 51.
    The driving energy due to the oscillation of the operating lever 50 is transmitted to the cage support lever unit 7 via the energy transmission part 2 formed by the lever toothed wheel 58 and the cage lever pinion 77. As a result, the cage support lever unit 7 rotates clockwise around the first axis C1 while rotating counterclockwise around the second axis C2. Thus, the cage unit 3 moves around the first axis C1 while turning clockwise around the first axis C1.
    CH 709 331 B1 [0141] And, as shown in FIG. 9, when 30 seconds have passed since the start of operation, the cam 40 has rotated 135 degrees from the initial position, and the innermost part 41 of the cam 40 is located in the zone (+ X, + Y) , with the outermost part 42 located in the area (-X, -Y). The follower 54 of the operating lever 50 is located at the outermost part 42 of the cam 40.
    [0142] At this time, the operating lever 50 moved rotatably around the shaft of the lever 51 clockwise from the initial position by a maximum angle. In addition, with the rotary movement of the operating lever 50, the cage unit 3 mounted at the distal end of the cage support lever unit 7 moves away from the first axis C1 to be arranged on the side the farther out in the radial direction.
    Then, with the passage of time, the cam 40 rotates anti-clockwise around the first axis C1, and the operating lever 50 rotates clockwise around the first axis C1. The follower 54 of the operating lever 50 moves in the cam groove 43 from the outermost part 42 in the direction of the innermost part 41 of the cam 40. Therefore, the follower 54 of the operating lever 50 moves rotatably around the first axis C1 while moving in the direction of the first axis C1. Consequently, due to the movement of the follower 54, the operating lever 50 moves around the first axis C1 while rotating (oscillating) anticlockwise around the shaft of the lever 51.
    In addition, the motive energy due to the oscillation of the operating lever 50 is transmitted to the cage support lever unit 7 via the energy transmission part 2 formed by the toothed wheel. lever 58 and cage lever pinion 77. Consequently, the cage support lever unit 7 rotates clockwise around the first axis C1 while rotating clockwise a watch around the second axis C2. Therefore, the cage unit 3 moves in the direction of the first axis C1 while turning clockwise around the first axis C1.
    And, as shown in FIG. 10, when 60 seconds have elapsed since the start of operation, the cam 40 has rotated 270 degrees from the initial position; the innermost part 41 of the cam 40 is situated in the zone (-X, -Y), and its outermost part 42 is situated in the zone (+ X, + Y). The follower 54 of the operating lever 50 is located at the innermost part 41 of the cam 40.
    At this time, the operating lever 50 has moved in a rotational manner by a maximum angle from the initial position in an anti-clockwise direction around the shaft of the lever 51. In addition, with the rotational movement of the operating lever 50, the cage unit 3 mounted at the distal end of the cage support lever unit 7 moves in the direction of the first axis C1 to be arranged on the most internally in the radial direction so that the cage center axis Q and the first axis C1 coincide with each other.
    From there, the above operation is repeated, the display mechanism 1 can then reproduce the trajectory K in the form of a petal while repeating the movement in the direction approaching or moving away from the first axis. C1, with the cage unit 3 rotating clockwise around the first axis C1.
    Advantage [0149] In the present embodiment, the operating unit 4 is made available which differentiates the speed of movement of the cage unit 3 and which moves the cage unit 3 in the direction approaching or moving away from the center of the display area S, so that it is possible to reproduce a complex trajectory K of the cage unit 3. In addition, the operating unit 4 moves the cage unit 3 so that the trajectory drawn when the cage unit 3 moves in the direction approaching the first axis C1, which is the center of the display area S, and the trajectory drawn when the cage unit 3 is moves in the direction away from the first axis C1, which is the center of the display area S, are continuous with each other, so that it is possible to reproduce a trajectory K curved from the cage unit 3. As a result, it is possible to reproduce e an even more complex trajectory K of the cage unit 3, so that it is possible to improve the design of the display mechanism 1.
    In addition, the lever unit 5 is equipped with the operating lever 50 which has at its end the follower 54 in contact with the cam 40 and which rotates around the first axis C1 while oscillating with the rotation of the lever unit 5, and the cage support lever unit 7, at one end of which the cage unit 3 is mounted and which rotates around the first axis C1 while oscillating with the oscillation of the operating lever 50, so that, by changing the configuration of the cam 40, it is possible to arbitrarily adjust the frequency of rotation of the operating lever 50 and the path K of the cage unit. In addition, the cage support lever unit 7 is supported to be able to rotate about the second axis C2, and the lever gear 58 of the operating lever 50 and the cage lever pinion 77 of the lever unit cage support 7 are connected to each other through the power transmission part 2, so that, in accordance with the set oscillation frequency and the speed of rotation of the operating lever 50 , the cage support lever unit 7 can rotate in the peripheral direction around the first axis C1 while oscillating. In this way, it is possible to adjust a desired path K of the cage unit 3 provided in the cage support lever unit 7 in accordance with the configuration of the cam 40 and the speed of movement of the follower 54 relative to to the cam 40, so that it is possible to reproduce a complex trajectory K of the cage unit 3, making it possible to visibly improve the design of the display mechanism 1.
    CH 709 331 B1 [0151] In addition, the energy transmission part 2 is formed by the cage lever pinion 77 and the lever toothed wheel 58, so that, by changing the ratio between the number of teeth of the cage lever pinion 77 and the gear lever wheel 58 which mesh with each other, it is possible to reproduce an even more complex trajectory K of the cage unit 3, making it possible to improve the design of the display mechanism 1.
    In particular, by making the gear ratio of the lever gear 58 larger than the gear ratio of the cage lever pinion 77, it is possible to increase the oscillation frequency of the cage support lever unit 7 for increasing the oscillation frequency of the cage unit 3; and by making the gear ratio of the lever gear 58 smaller than the gear ratio of the cage lever pinion 77, it is possible to reduce the oscillation frequency of the support lever unit cage 7 to reduce the frequency of oscillation of the cage unit 3. In this way, in addition to the configuration of the cam 40 and the speed of movement of the flower part 54 relative to the cam 40, the ratio between the number of teeth of the cage lever pinion 77 and the number of teeth of the lever toothed wheel 58 is changed, thus being possible to set a desired path K of the cage unit 3. Therefore, it is possible to reproduce a complex trajectory of the cage unit 3 with a simple structure, making it possible to improve the design of the display mechanism 1.
    In addition, the numbers of teeth Za to Zh of the first solar wheel 81, of the second solar wheel 82, of the lever unit toothed wheel 68, of the first planetary gear toothed wheel 94, of the first planetary wheel 93, and second planetary wheel 97 are set to cancel the fluctuation in the rotational speed of the second transmission wheel 79 due to the oscillation of the cage support lever unit 7, so that, even in the case where the motive energy of the movement barrels 110 which constitute the energy source is divided and used for guiding the exhaust 20 of the cage unit 3 and the oscillation of the unit with cage support lever 7, it is possible to transmit the driving energy from the second solar wheel 82 to the exhaust 20 of the cage unit 30 so that the speed of rotation of the exhaust mobile 21 is fixed without being affected by l oscillation of the drive cage support lever 7. Therefore, it is possible to provide a display mechanism 1 capable of achieving an improvement of the design without affecting the accuracy of the time measurement.
    In addition, the lever unit 5 rotates clockwise while the cam 40 rotates three anti-clockwise, so that when the unit lever 5 rotates clockwise, the follower 54 of the operating lever 50 can pass the outermost part 42 and the innermost part 41 of the cam 40 four times. Therefore, the cage unit 3 provided in the cage support lever unit 7 can rotate while going back and forth four times to move in the direction approaching and in the direction away from the first axis C1, so that it is possible to reproduce the complicated trajectory K in the shape of a petal around the first axis C1. Therefore, it is possible to visibly improve the design of the display mechanism 1.
    In addition, by turning the cage unit 3 around the cage center axis Q relative to the operating unit 4, it is possible to rotate the balance spring 38 of the regulator 30, so that it is possible to compensate for the influence due to the direction of the gravitational force. That is to say, the display mechanism 1 is equipped with a mechanism called a vortex mechanism capable of suppressing the change in the oscillation cycle of the balance-spring 38 due to the direction of the gravitational force, so that it is possible to achieve a considerable improvement in terms of accuracy of time measurement and design.
    In addition, in the movement 101 and in the timepiece 100 according to the present embodiment, it is possible to reproduce a complex trajectory K of the cage unit 3 due to the provision of the mechanism. display 1 described above, so that it is possible to provide a movement 101 and a timepiece 100 which are superior in design.
    The invention is not limited to the embodiment described above with reference to the drawings, but allows various modifications without departing from its technical spirit.
    While in the display mechanism 1 of the embodiment the lever unit 5 rotates clockwise while the cam 40 rotates three times anticlockwise a watch, the rotational speeds of the cam 40 and of the lever unit 5 are not restricted to those of the above embodiment. In addition, while the display mechanism 1 of the embodiment is equipped with a mechanism called the vortex mechanism, which rotates the balance spring 38 of the regulator 30 to compensate for the influence due to the direction of the gravitational force by rotating the cage unit 3 around the cage center axis Q with respect to the operating unit 4 and suppressing the change in the oscillation cycle of the balance spring 38, the mechanism whirlpool may also not be expected. In this case, the driving energy is transmitted by the second transmission wheel 79 to the exhaust mobile 21 without the intermediary of the cage unit shaft 18.
    In addition, while the display mechanism 1 of the embodiment is a cam called a heart-shaped cam, the cam 40 of which having the innermost part 41 and the outermost part 42, the configuration of the cam is not limited to that of a heart-shaped cam. Therefore, the cam 40 can be formed, for example, by a cam surface, the radius of which increasing in a spiral from one side in the direction of the other side in the peripheral direction, and a walking surface connecting a position where the radius is minimal with a position where the radius is maximum.
    CH 709 331 B1 [0161] Furthermore, while in the display mechanism 1 of the embodiment, the number of teeth Za of the first sun wheel pinion 81b of the planetary mechanism unit 8 is 15, the number of teeth Zb of the planetary first wheel pinion 93b is 15, the number of teeth Zc of the planetary first wheel gear 93a is 30, the number of teeth Zd of the second solar wheel gear 82b is 10, the number of teeth Ze of the lever unit toothed wheel 68 is 45, the number of teeth Zf of the second planetary gear 97b is 15, the number of teeth Zg of the second planetary gear 97a is 15, and the number of teeth Zh of the first planetary gear wheel 94 is 30, this should not be interpreted in a restrictive manner; the numbers of teeth Za to Zh of the wheels are not limited to those of the embodiment. That is to say, in the planetary mechanism unit 8, it is only necessary that the numbers of teeth Za to Zh of the wheels are adjusted so that it is possible to cancel the influence of the fluctuation in the rotational speed attributable to the oscillation of the cage support lever unit 7 due to the first driving energy P1 generated in the toothed wheel on the downstream side of the second solar wheel 82 in the direction of transmission of energy.
    In addition, in the display mechanism 1 of the embodiment, the cam 40 is equipped with the cam groove 43, and the follower 54 moves slowly in the cam groove 43. On the other side, it is also possible, for example, for the cam to be equipped with the cam surface and the walking surface, with the follower moving in sliding contact while being pushed by the cam surface.
    In addition, when in the display mechanism 1 of the embodiment the energy transmission part 2 is formed by the cage lever pinion 77 and the lever toothed wheel 58 of the operating lever 50, the shape of the energy transmission part 2 is not limited to that of the embodiment. So, for example, it is also possible for the power transmission part 2 to be formed by connecting together the cage support lever unit 7 and the operating lever 50 by a belt and a pulley.
    In addition, in the display mechanism 1 of the embodiment, the lever unit 5 and the cam 40 rotate in opposite directions around the first axis C1. On the other hand, it is also possible for the lever unit 5 and the cam 40 to rotate in the same direction and at different speeds around the first axis C1.
    In addition, while in movement 101 of the embodiment, a pair of movement barrels 110 are provided so that sufficient motive energy to guide the display mechanism 1 can be obtained, the number of barrels of movement 110 is not limited to that of the embodiment. Therefore, in the case where sufficient motive energy to guide the display mechanism 1 can be obtained with a single movement barrel 110, the number of movement barrels 110 can be one.
    claims
    1. Display mechanism including:
    a cage unit (3), movable and comprising an exhaust (20) and a regulator (30); and an operating unit (4) configured to differentiate the speed of movement of the cage unit (3) with the passage of time and to move the cage unit (3) in the direction approaching or moving away from the center of a display part (S), in which the operating unit (4) moves the cage unit (3) so that the path followed when the cage unit (3) moves in the direction approaching the center of the display part (S) is extended by the path followed when the cage unit (3) moves in the direction away from the center of the display part (S), and causes the driving energy from an energy source (110) to be divided and transmitted both to the operating unit (4), to the exhaust (20) and to the regulator (30).
    [2]
    2. Display mechanism according to claim 1, in which the operating unit (4) comprises:
    - a cam (40) to which part of the driving energy is transmitted from the energy source (110) and which rotates around a first axis (C1), and
    - a lever unit (5) configured to rotate relative to the cam (40), the lever unit (5) comprising:
    - an operating lever (50) having at one end a follower (54) in contact with the cam (40) and configured to circulate around the first axis (C1) while oscillating with the rotation of the lever unit (5 ), and
    - a cage support lever unit (7), at one end of which the cage unit (3) is mounted and which, at its other end, is supported so as to be able to rotate around a second axis (C2) located on the outer side in the radial direction of the cam (40) and which circulates around the first axis (C1) while oscillating with the oscillation of the operating lever (50), the other end of the operating lever (50 ) and the other end of the cage support lever unit (7) being connected via an energy transmission part (2).
    [3]
    3. Display mechanism according to claim 2, in which the energy transmission part (2) is formed by a cage lever pinion (77) provided at the other end of the support lever unit. cage (7), and a lever wheel (58) formed at the other end of the operating lever (50).
    [4]
    4. Display mechanism according to claim 2 or 3, in which the lever unit (5) comprises:
    CH 709 331 B1
    - a planetary mechanism unit (8) configured to transmit part of the motive energy from the energy source (110) to turn an exhaust mobile (21) from the exhaust (20),
    a lever bridge unit (6) carrying the operating lever (50) and the cage support lever unit (7), and rotating about the first axis (C1), and
    - a transmission wheel which meshes with the planetary mechanism unit (8) and which rotates the exhaust mobile (21);
    the planetary mechanism unit (8) comprising:
    - a first solar wheel (81) which rotates around the second axis (C2) by the driving energy of the energy source (110),
    a second solar wheel (82) arranged coaxially with the first solar wheel (81) and capable of rotating at a speed different from that of the first solar wheel (81),
    a first planetary mechanism (91) having a first planetary wheel (93) meshing with the first solar wheel (81) and the second solar wheel (82) and configured to rotate around the second axis (C2), and
    - a second planetary mechanism (96) having a second planetary wheel (97) meshing with a lever unit toothed wheel (68) provided on the lever bridge unit (6) and a first planetary mechanism toothed wheel ( 94) provided on the first planetary mechanism (91) and configured to rotate around the second axis (C2) in accordance with the oscillation of the cage support lever unit (7); and the respective numbers of teeth of the first sun wheel (81), the second sun wheel (82), the lever unit gear wheel (68), the first planetary gear gear wheel (94), the first planetary wheel (93), and the second planetary wheel (97) are selected to prevent the rotational speed of the transmission wheel from fluctuating due to the oscillation of the cage support lever unit (7) .
    [5]
    5. Display mechanism according to one of claims 2 to 4, wherein the cam (40) is a heart-shaped cam equipped with an outermost part (42), the distance to the first axis (C1 ) is maximum, and an innermost part (41), the distance to the first axis (C1) is minimum;
    the cam (40) and the lever unit (5) rotate in opposite directions; and the speed of rotation of the cam (40) is three times the speed of rotation of the lever unit (5).
    [6]
    6. Display mechanism according to one of claims 1 to 5, wherein the cage unit (3) is supported to be able to rotate relative to the operating unit (4).
    [7]
    7. Movement equipped with a display mechanism (1) according to one of claims 1 to 6.
    [8]
    8. Timepiece equipped with a movement according to claim 7.
    CH 709 331 B1

    CH 709 331 B1
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    同族专利:
    公开号 | 公开日
    CN104914707B|2018-12-07|
    CH709331A2|2015-09-15|
    JP2015169649A|2015-09-28|
    JP6256949B2|2018-01-10|
    CN104914707A|2015-09-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS6410793B2|1983-12-01|1989-02-22|Orient Watch Co Ltd|
    US7527423B2|2004-04-15|2009-05-05|Montres Breguet Sa|Watch comprising two tourbillons|
    JP4386022B2|2004-11-10|2009-12-16|セイコーエプソン株式会社|Clock display device, movement, and clock|
    JP4631839B2|2006-02-22|2011-02-23|セイコーエプソン株式会社|clock|
    JP4737634B2|2006-08-30|2011-08-03|セイコーインスツル株式会社|Mechanical watch with rotating cage|
    CH700222B1|2009-01-15|2015-04-15|Temps Sa Fab Du|automatic watch movement escapement mounted on the oscillating weight.|EP3599515A1|2018-07-24|2020-01-29|Harry Winston SA|Timepiece driving mechanism|
    EP3599516A1|2018-07-24|2020-01-29|Harry Winston SA|Timepiece retrograde tourbillon or karussel|
    EP3599517B1|2018-07-24|2021-03-10|Harry Winston SA|Timepiece retrograde tourbillon or karussel|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2014047347A|JP6256949B2|2014-03-11|2014-03-11|Special display mechanism, movement and watch|
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