• 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 timepiece (2) provided with a chronograph mechanism (1) comprising a barrel drum wheel kinematically connected to a gear multiplier train, the output of which is regulated by an exhaust regulating mechanism. At least one gear of the gear train is arranged as a chronograph gear and is kinematically connected to a chronograph shaft via a vertical clutch mechanism whose axis is directed in the direction of the thickness. of the timepiece.
    公开号:CH705988B1
    申请号:CH02857/12
    申请日:2012-12-19
    公开日:2017-05-31
    发明作者:Arakawa Yasuhiro
    申请人:Seiko Instr Inc；
    IPC主号:
    专利说明:

    Description
    BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a timepiece provided with a chronograph mechanism. 2. The Prior Art [0002] In a timepiece provided with a chronograph mechanism, a general gear train for a manual operation and a gear train of the chronograph are provided, and typically, the gear train The chronograph gears are added to the output of the general gear train for manual operation or the end which is spaced from the gear train (hereinafter, the output and the end are referred to as a "last stage of the train general gearing for manual operation ") (e.g., JP-A-5-215868).
    In this kind of timepiece provided with a chronograph mechanism, an advantage is that the conventional general gear train for manual operation can be used in maximum proportions. However, it is difficult to avoid a complication of a supporting substrate such as a main plate or a pad or an increase in the pad portions such as a hole stone.
    In addition, a timepiece provided with a chronograph mechanism with a smaller number of parts is known (for example, JP-A-9-178 868).
    In the timepiece provided with a chronograph mechanism of JP-A-9-178 868, the method that drives or connects the chronograph gear train is generated, and the chronograph gear train. can be arranged on the same side as the general gear train for manual operation. However, the timepiece provided with a chronograph mechanism of JP-A-9-178 868 also has a structure in which the chronograph gear is added to the last stage of the general gear train for operation. therefore, the disadvantages described above similar to the case of JP-A-5-215 868 are present.
    In addition, it is known to perform a coupling and a disconnection between a wheel of the general gear train for a manual operation and a wheel of the chronograph gear train provided with a clutch called vertical clutch that engages and disengages in a longitudinal direction (direction in the direction of the thickness of the timepiece) of a stem of a timepiece (for example, JP-A-5-215 868 or JP-A- 2004-294 279).
    In addition, in the timepiece provided with a chronograph mechanism, generally, since a wheel that displays the chronograph is provided on the last stage of the gear train, to remove a fluctuation of a needle , having a dial washer or pressing with a pressure spring is required, and the dial washer or the pressure spring increases the load with respect to the rotation of the gear train due to friction. It is not particularly preferable in the gear train on one side increasing the speed related to a "second" or the like. SUMMARY OF THE INVENTION [0008] The present invention has been realized by considering the problems described above, and an object of this invention is to provide a timepiece provided with a chronograph mechanism in which a train of Independent gears for the chronograph is not required.
    According to one aspect of the present invention, there is provided a timepiece provided with a chronograph mechanism. This timepiece comprises a barrel drum wheel and a gear multiplier train which is driven by the barrel drum wheel and in which there is an output wheel whose speed is regulated by an exhaust regulating mechanism. . In this timepiece, at least one gear of the gear multiplier gear is a chronograph gear to which a clutch mechanism is able to couple a chronograph shaft separately from the chronograph mechanism.
    In the timepiece according to the aspect of the present invention, since "at least one gear in the gears gear train, which is driven by the barrel drum wheel and wherein the speed control of an output wheel is effected by an exhaust regulating mechanism, is a chronograph gear to which a clutch mechanism is able to couple a chronograph shaft in isolation from the chronograph mechanism ", a chronograph wheel may be incorporated in the middle of the gears gear train, and not at the output or the last stage of the gears gear train. Therefore, the rotation of the chronograph wheel can be stably performed. In the timepiece according to the aspect of the present invention, since the gear parts which are required for the transmission of motion in the gear multiplier train in the chronograph wheel can be separated from the chronograph shaft and the other parts in the chronograph wheel by the clutch mechanism, the additional load applied to the gear multiplier gear due to interposition of the chronograph gears can be suppressed in maximum proportions.
    In one embodiment of the timepiece according to the aspect of the present invention, the clutch mechanism is an axial clutch whose axis is directed in the direction of the thickness of the workpiece. and in which the chronograph shaft is coupled to the chronograph gear in a direction according to the direction of the thickness of the timepiece.
    In this case, if the axle clutch mechanism is disengaged, the chronograph shaft is separated from the chronograph gear and operates as a general timepiece, and if the axial clutch mechanism is engaged , the chronograph shaft is connected to the chronograph gear, and a chronograph operation can be performed.
    In one embodiment of the timepiece according to the aspect of the present invention, the clutch mechanism comprises a clutch spring, a clutch spring support plate provided to block one end of the clutch. a clutch plate and a clutch ring which is displaceable in one direction under the action of the clutch spring and in the opposite direction relative to the clutch plate and can thus come into a position wherein said clutch ring and the clutch plate are engaged, in addition to which the chronograph shaft is part of a rotary subassembly comprising the clutch ring, the clutch spring and the clutch ring. clutch spring support plate, and the chronograph gear is part of a rotary subassembly comprising the clutch plate.
    In this case, when the clutch mechanism is disengaged, the load or disadvantage can be suppressed in maximum proportions due to the fact that the chronograph gear is interposed in the middle part.
    In one embodiment of the timepiece according to the aspect of the present invention, the chronograph mechanism comprises a second chronograph shaft, a second clutch mechanism and a second chronograph gear which is part of the gear multiplier train, the second clutch mechanism being able to couple separately the second chronograph shaft to the second chronograph gear.
    In this case, since a wheel of the gear multiplier gear that substantially connects the barrel drum wheel and the exhaust regulator mechanism can operate as a second chronograph gear, the gear train can be effectively used. More specifically, the end gear that is engaged with the exhaust regulator mechanism can operate substantially like the second chronograph gear.
    In one embodiment of the timepiece according to the aspect of the present invention, the chronograph shaft is a minute chronograph shaft, the clutch mechanism is a clutch mechanism minutes, and the at least one gear is a minute chronograph gear to which the minute clutch mechanism is able to mate the minute chronograph shaft in isolation.
    In this case, since a gear train gear wheel that substantially connects the barrel drum wheel and the exhaust regulator mechanism can operate as a minute chronograph gear, the gear train can be effectively used .
    In one embodiment of the timepiece according to the aspect of the present invention, this timepiece comprises a gear reduction gear, which is driven by the barrel drum wheel, and it comprises an hour wheel and a minute wheel that are connected to the gear reduction gear.
    In this case, the hour wheel and the minute wheel can be driven into the state where the load is removed in maximum proportions according to the rotation of the barrel drum wheel in which the speed control is carried out. by the exhaust regulating mechanism and the interposition of the gear reduction gear.
    In one embodiment of the timepiece according to the aspect of the present invention, a gear of the gear reducer gear is a chronograph gear hours at which a clutch mechanism hours is able to isolate a chronograph shaft from the hours of the chronograph mechanism.
    In this case, since a wheel gear reducer gear can operate as a chronograph gear hours, the gear train can be effectively used.
    In one embodiment of the timepiece according to the aspect of the present invention, an hour gear and a minute gear are kinematically connected to the hour chronograph gear by an intermediate gear.
    In this case, the hour wheel and the minute wheel can be effectively driven. Here, typically, the intermediate gear is arranged as a minute wheel.
    In one embodiment of the timepiece according to the aspect of the present invention, there is provided a second wheel which is provided with a small seconds hand.
    In this case, the second display can be performed at the time of the manual operation.
    Brief description of the drawings [0027]
    Fig. 1 is an explanatory plan view when main wheel sets of a chronograph timepiece of a preferred example of the present invention which includes a chronograph mechanism of a preferred example of the present invention have been seen since the back cover side.
    Fig. 2 is an explanatory plan view when an approximate contour of the timepiece of FIG. 1 is seen from the dial side.
    Fig. 3 is an explanatory sectional view when the chronograph mechanism is a reset state in the timepiece of FIG. 1.
    Fig. 4 is an enlarged explanatory sectional view showing a rotation transmission from a chronograph gear mechanism of the hours to a wheel of hours and a minute wheel when the chronograph mechanism is a start state in the timepiece. of fig. 1.
    Figs. 5a and 5b show the operation of a clutch mechanism in the hour chronograph gear mechanism in the timepiece of FIG. 1, fig. 5a is an enlarged explanatory sectional view showing the state of the clutch mechanism when the hours chronograph gear mechanism is the reset state shown in FIG. 3, and FIG. 5b is an enlarged explanatory sectional view showing the state of the clutch mechanism when the hours chronograph gear mechanism is in the start state shown in FIG. 6.
    Fig. 6 is an explanatory sectional view similar to FIG. 3 when the chronograph mechanism is in the start state in the timepiece of FIG. 1.
    Fig. 7 is an explanatory sectional view similar to FIG. 3 when the chronograph mechanism is in the stopped state in the timepiece of FIG. 1.
    Figs. 8a to 8c show a chronograph timepiece of a modified example of the present invention which comprises a chronograph mechanism of a modified example of the present invention, FIG. 8a is an explanatory view showing a contour similar to FIG. 2 with respect to a timepiece of a first modified example, FIG. 8b is an explanatory view showing an outline similar to FIG. 2 with respect to a timepiece of a second modified example, and FIG. 8c is an explanatory view showing an outline similar to FIG. 2 compared to a timepiece of a third modified example.
    Fig. 9 is an explanatory sectional view similar to FIG. 6 with respect to the chronograph timepiece which includes the chronograph mechanism of FIG. 8a.
    DETAILED DESCRIPTION OF THE INVENTION [0028] In the following, a preferred embodiment of the present invention will be described based on a preferred example shown in the accompanying drawings.
    Embodiment [0029] For example, a timepiece 2 which includes a chronograph mechanism 1 of a preferred example of the present invention, that is, a timepiece 2 provided with a chronograph mechanism has a blank as shown schematically in FIG. 2.
    That is to say, as shown in FIG. 2, the timepiece 2 provided with a chronograph mechanism comprises an hour hand 11 and a minute hand 12 which are driven in the clockwise direction C1 around a central axis line C, and a 14-hour chronograph hand (for example, the needle is a needle for a total of 12 hours, however, the hours may be different) which is around an axis line of center A, a 15 minute chronograph hand (for example, the needle is a needle for a total of 30 minutes, however, the minutes may be different) which is rotatable about a center line B center, and a second hand Chronograph 16 (e.g., the needle is a needle for a total of 60 seconds, however, the seconds may be different) which is rotatable about the center line C, which are chronograph hands. On the 9:00 side of a dial 7, a rocker with a spring 31, which constitutes an exhaust regulator mechanism (an oscillator mechanism, a resonator mechanism, or a pendulum) 30 and pivots to return around. an axis line of center D, is positioned to be seen from a transparent window 7a. The timepiece 2 comprises a ring 8, a start and stop button (operation) 9a, or a reset button (return to zero order) 9b.
    The timepiece 2 provided with a chronograph mechanism comprises a structure as shown schematically in FIGS. 1,3, and 4 as a gear train.
    As shown in FIG. 1 which is an explanatory plan view when the timepiece 2 is seen from the back cover side, the timepiece 2 comprises a barrel drum 20 (barrel) in the position of approximately 4:30 and the balance with a spring 31 of the exhaust regulator mechanism 30 in the position of 9:00. As shown in FIG. 3, the barrel drum 20 which is rotatable about an axis line of center E comprises, integrally with a barrel drum shaft 23, a square hole wheel (winding ratchet) 22 including a square hole screw 21 and a square hole gear 22a, and comprises, integrally with a barrel drum wheel 25, a barrel drum gear 24 and a barrel drum gear 26. The barrel drum wheel 25 is connected to the regulating mechanism Exhaust 30 from the barrel drum gear 24 by a gear multiplier train (multiplying gear train or multiplying gear) 4. As shown in FIGS. 3 and 4, the barrel drum sprocket 26 is connected to a hour wheel 71 by a gear reduction gear train (reduction gear train or gear reducer). In this example, the barrel drum wheel 25 is driven in a counterclockwise direction when viewed from the back cover side. Suitably, when the number of an intermediate wheel is different from one, the barrel drum wheel 25 can be rotated clockwise.
    The gear reduction gear 5 comprises an intermediate wheel 73 which is connected to the barrel drum wheel 25, a chronograph hour gear main body portion 81 of a chronograph gear mechanism of the invention. hours (wheel counting the hours) 80, and a minute wheel 74.
    The intermediate wheel 73 connects the barrel drum sprocket 26 and the chronograph gear main body portion hours 81. As understood by the explanatory sectional views of FIGS. 3 and 4, the intermediate wheel 73 comprises an intermediate wheel shaft portion 73a, and an intermediate wheel gear portion 73b and an intermediate wheel gear portion 73c which are integrated with the shaft portion 73a, is engaged with the barrel drum gear 26 by an intermediate wheel gear portion 73c, and is engaged with the hours chronograph gear main body portion 81 of the 80 hours chronograph gear mechanism by the intermediate wheel gear portion 73b. For example, the intermediate wheel 73a may be a single gear that connects the barrel sprocket 26 and the hourly chronograph gear main body portion 81 instead of having the gear and the sprocket.
    The minute wheel 74 includes a shaft portion 74a, a first gear portion 74b, a second gear portion 74c, and a gear portion 74d is engaged with the gear of the body portion. hour chronograph gear main 81 by means of its pinion portion first 74b, and is engaged with a gear portion 71a of the hour wheel 71 by means of its second pinion portion 74c. In addition, the gear portion 74d of the minute wheel 74 is engaged with a pinion portion of a minute wheel 72 or a small gear portion of diameter 72a. The hour wheel 71 and the minute wheel 72 can rotate about the center axis line C, and comprises a large-diameter tubular portion 71b to which the hour hand 11 is attached and a tubular portion of small diameter. 72b to which the minute hand 12 is attached respectively. For example, the hour wheel 71 and the minute wheel 72 are pivoted by a center tube 107.
    As understood by the enlarged explanatory sectional view of FIG. 4 in addition to the explanatory sectional view of FIG. 3, the 80 hours chronograph gear mechanism comprises the hours 81 hour chronograph gear main body part and a 83 hour hours chronograph gear control mechanism part. The hollow hub main body part or a hollow shaft portion 81a, and an hour chronograph pinion portion 81b and an hour chronograph gear portion 81c which are integrated with the shaft portion 81a, and is engaged with the intermediate pinion 73b by the hours 81b chronograph pinion part. The hour chronograph gear portion 81c also operates as a clutch receiving plate portion. The hour chronograph gear portion 81c is slidably engaged to rotate relatively about the center axis line A with respect to the shaft portion 81a if a wide torque is operated.
    The hour control chronograph gear mechanism portion 83 includes an 84 hour chronograph wheel shaft, an 85 hour chronograph clutch ring, an hour 86 chronograph clutch spring, an hour chronograph clutch spring support plate (spacer or plate) 87, and a chronograph core cam 88. The hour 84 chronograph wheel shaft includes a small diameter rod portion 84a, a a large diameter neck portion 84b, an intermediate diameter shank portion 84c, a small diameter shank portion 84d, and a small diameter shaft portion 84e for insertion of a needle, and is inserted to slidably rotate toward the hollow shaft portion 81a of the hour chronograph gear main body portion 81 through the small diameter rod portion 84a. The hours 85 chronograph clutch ring is engaged with the large diameter snare portion 84b and the intermediate diameter shaft portion 84c of the 84 hour chronograph wheel shaft to slidably replace in the direction relative to the wheel shaft 84. An end of the hour chronograph clutch spring 86 comes into pressure contact with a portion of a clutch ring spring bushing 85a, and the other end of the hour chronograph clutch spring 86 is locked to the chronograph clutch spring support plate 87. The support plate 87 is attached to the wheel shaft 84. In addition, by for example, in the wheel shaft 84, a retainer 108a is formed in a dial side direction T1 in the thickness directions T1 and T2 of the timepiece 2 in the tip side of the small stalk t diameter 84a. In addition, for example, in the wheel shaft 84, a retainer 108b is formed in the rear cover direction T2 in the end side of the small diameter rod portion 84a. Here, a chronograph gear clutch mechanism 89 of the 80 hours chronograph gear mechanism has the shape of a vertical clutch, and includes the 85 hours chronograph clutch ring, the spring 86 hours chronograph clutch, 87 hours chronograph clutch spring retainer, and hours 81c chronograph clutch receiving plate portion.
    The clutch ring 85 includes an annular concave portion 85c on the outer circumferential surface, and as shown in FIG. 5a, if an hours operation lever engagement portion 6a is moved in a direction A3 in the inner side of the diameter direction towards the annular concave portion 85c and is inserted into the annular concave portion 85c, clutch ring 85 moves in the direction T1 on the dial side in the axis line direction against the spring force of the clutch spring 86, the engagement between the clutch ring 85 of the 83 hours chronograph gear control mechanism part and the hours 81c chronograph clutch receiving plate part of the hours 81 main chronograph gear body part is released, and the body part 81 hours chronograph gear main gear can be rotated freely with respect to the 83 hour chronograph gear control mechanism part. At this time, according to the commitment between the party With the operation of the hours operation lever 6a and the annular concave portion 85c of the clutch ring 85, the movement of the shaft portion 84e and the hour chronograph hand 14 is prohibited.
    On the other hand, as shown in FIG. 5b, if the manual operation lever engaging part 6a moves in a direction A4 and the engagement between the operating lever engagement portion 6a and the annular concave portion 85c of the ring clutch 85 is withdrawn, the clutch ring 85 moves in the direction T2 of the rear cover side in the axis line direction under the operation of the spring force of the clutch spring 86, and clutch ring 85 of hours 83 chronograph gear control mechanism part and hour clocks 81c chronograph clutch receiving plate portion of hours 81 chronograph gear main body part are engaged with each other. Therefore, the hour chronograph hand 14 is rotated about the center axis line A according to the rotation of the hour chronograph gear main body portion 81, and a chronograph measurement can be made.
    As shown in FIGS. 1 and 3, the gear train 4 has the shape approximately similar to a gear train which is called a front gear train which is positioned on the rear cover side in a conventional general gear train for a gear train. manual operation, and includes a first speed increasing intermediate wheel 41 which is connected to the barrel drum wheel 25, a minute chronograph gear main body portion 51 of a minute chronograph gear mechanism ( wheel counting minute) 50, a second speed increasing intermediate wheel 42, and a second chronograph gear main body portion 61 of a second chronograph gear mechanism (wheel counting the seconds) 60. For example, the barrel drum wheel 25 is turned once for 7 hours, the first speed-increasing intermediate wheel 41 is rotated once for 120 minutes, and the second speed increasing intermediate wheel 42 is rotated once for 4 minutes. For example, the rocker with a spring 31 may be 6 vibrations or 8 vibrations. Of course, the vibration of the balance with a spring 31 or the speed of rotation of the wheel which configures the gear train 4 may be different from that described above.
    As understood from the explanatory sectional view of FIG. 3, the first speed increasing intermediate wheel 41 comprises a first speed increasing intermediate wheel shaft 41a, and a first speed increasing intermediate gear 41b and a first speed increasing intermediate gear 41c which are integrated with the shaft 41a. and is engaged with the barrel drum gear 24 by the first intermediate speed increasing gear 41 b.
    As understood by the explanatory sectional view of FIG. 3, the minute chronograph gear mechanism 50 is arranged to be approximately similar to the 80 hours chronograph gear mechanism. That is, the 50 minute chronograph gear mechanism includes the 51 minute chronograph gear main body and a part of 53 minutes chronograph gear control mechanism. The minute chronograph gear main body portion 51 is arranged to be approximately similar to the body part. hour chronograph gear main body 81. That is, the minute chronograph gear main body portion 51 comprises a hollow hub portion or a hollow shaft portion 51a, and a portion of 51b minute chronograph gear and a 51c minute chronograph gear that is integrated with the shaft portion 51a, and is engaged with the first intermediate gear increasing the speed 41c by the minute 51b chronograph gear part. The minute chronograph gear 51c also operates as a clutch receiving plate portion.
    The minute chronograph gear control mechanism portion 53 is arranged to be similar to the 83 hour chronograph gear control mechanism portion. That is, the mechanism portion. 53 minute chronograph gear control system includes a 54 minute chronograph wheel shaft, a 55 minute chronograph clutch ring, a 56 minute chronograph clutch spring, a spring support plate minute chronograph clutch (spacer) 57, and a minute chronograph heart cam 58. The minute chronograph wheel shaft 54 includes a small diameter rod portion 54a, a large diameter neck portion 54b , an intermediate diameter shank portion 54c, a small diameter shank portion 54d, and a small diameter shaft portion for insertion of a pin 54e, and is inserted to rotate from sliding slot to the hollow shaft portion 51a of the minute chronograph gear main body portion 51 through the small diameter rod portion 54a. The minute chronograph clutch ring 55 is engaged with the large diameter snare portion 54b and the intermediate diameter shank portion 54c of the minute chronograph wheel shaft 54 to slidably replace in the direction of rotation. relatively axis line relative to the wheel shaft 54. One end of the minute chronograph clutch spring 56 comes into pressure contact with a spring bearing portion 55a of the clutch ring 55, and the other end of the minute chronograph clutch spring 56 is locked to the minute chronograph clutch spring support plate 57. The support plate 57 is attached to the wheel shaft 54. more, for example, in the wheel shaft 54, a retainer 105a is formed in the dial side direction T1 in the thickness directions T1 and T2 of the timepiece 2 on the tip side of the party e small diameter rod 54a. In addition, for example, in the wheel shaft 54, a retainer 105b is formed in the rear cover direction 12 in the end side of the small diameter rod portion 54a. Here, a minute 59 chronograph gear mechanism clutch mechanism of the 50 minute chronograph gear mechanism has the shape of a vertical clutch, and includes the 55 minute chronograph clutch ring, the spring 56 minute chronograph clutch clutch, and 51c minute chronograph clutch receiving plate part.
    The clutch ring 55 includes an annular concave portion 55c on the outer circumferential surface, and if a minute operation lever engaging portion 6b is moved in a direction B3 on the inner side of the direction. of diameter in the direction of the annular concave portion 55c and is inserted at the annular concave portion 55c, the clutch ring 55 moves in the direction T1 on the dial side in the axis line direction against the force of spring of the clutch spring 56, engagement between the clutch ring 55 of the minute chronograph gear control mechanism portion 53 and the clutch receiving plate portion 51c of the body portion 51 minute chronograph gear main gear is released, and the minute chronograph gear main body portion 51 can be rotated freely relative to the control mechanism portion of the At this time, according to the engagement between the operating lever engagement portion of the minutes 6b and the annular concave portion 55c of the clutch ring 55, the movement of the portion of the 54th shaft and 14 minute chronograph hand is prohibited.
    On the other hand, if the operating lever engagement portion of the minutes 6b is moved in a direction B4 and the engagement between the operating lever engagement portion of the minutes 6b and the portion 55c annular concave of the clutch ring 55 is released, the clutch ring 55 moves in the direction 12 of the rear cover side in the axis line direction under the operation of the spring force of the clutch spring 56, and the clutch ring 55 of the minute chronograph gear control mechanism portion 53 and the clutch receiving plate portion 51c of the gear main body portion of the Chronograph minutes 51 are engaged with each other. Therefore, the minute chronograph hand 14 is rotated about the center line B according to the rotation of the minute chronograph gear main body portion 51, and a chronograph measurement can be made.
    As understood by the explanatory sectional view of FIG. 3, the second speed increasing intermediate wheel 42 comprises a second speed increasing intermediate wheel shaft 42a, and a second speed increasing intermediate gear 42b and a second speed increasing intermediate gear 42c which are integrated with the shaft 42a, and is engaged with the minute chronograph gear 51c of the minute chronograph gear main body 51 by the second intermediate gear increasing speed 42b.
    As understood by the explanatory sectional view of FIG. 3, the second chronograph gear mechanism 60 is arranged to be approximately similar to the 80 hour chronograph gear mechanism or the 50 minute chronograph gear mechanism. That is, the second mechanism Chronograph gear 60 includes the second chronograph gear main body portion 61 and a second chronograph gear control mechanism portion 63. The second chronograph gear main body portion 61 is arranged to be approximately the same as the 81 hour chronograph gear main body part or the 51 minute chronograph gear main body part. That is, the second part of chronograph gear main body 61 comprises a hollow hub portion or a hollow shaft portion 61a, a second chronograph pinion portion 61b and a second chronograph gear 61c which are integrated with the shaft portion 61a, and a clutch receiving plate portion 61d which is a clutch plate, and is engaged with the second speed increasing intermediate gear 42c by the second portion. Chronograph sprocket 61b.
    The second part of the chronograph gear control mechanism 63 is arranged to be similar to the 83 hour chronograph gear control mechanism portion or the minute chronograph gear control mechanism portion. 53. That is, the second part of the chronograph gear control mechanism 63 comprises a second chronograph wheel shaft 64, a second chronograph clutch ring 65, a second clutch spring chronograph 66, a second chronograph clutch spring bearing carriage 67, and a second chronograph core cam 68. The second chronograph wheel shaft 64 includes a small diameter rod portion 64a, a collar portion of large diameter 64b, an intermediate diameter shank portion 64c, a small diameter shank portion 64d, and a small diameter shaft portion for insertion of a needle 64e, and is inserted to slidably rotate toward the hollow shaft portion 61a of the second chronograph gear main body portion 61 through the small diameter rod portion 64a. The second chronograph clutch ring 65 is engaged with the large diameter snare portion 64b and the intermediate diameter shank portion 64c of the second chronograph wheel shaft 64 to slidably replace in the axis line direction. relative to the wheel shaft 64. One end of the minute chronograph clutch spring 66 comes into pressure contact with a spring bearing portion 65a of the clutch ring 65, and the other end the second chronograph clutch spring 66 is locked toward the second chronograph clutch spring support plate 67. The support plate 67 is attached to the wheel shaft 64. In addition, for example wheel shaft 64, a retaining device is formed by a receiving surface 107a of the center tube 107 in the dial side direction T1 in the thickness directions T1 and T2 of the horlo piece. 2 in the tip side of the small diameter rod portion 64a. In addition, for example, in the wheel shaft 64, a retainer 106 is formed in the rear cover direction T2 in the end side of the small diameter rod portion 64a. Here, a second chronograph gear clutch mechanism 69 of the second chronograph gear mechanism 60 is in the form of a vertical clutch, and includes the second chronograph clutch ring 65, the second clutch spring chronograph 66, the second chronograph clutch spring support plate 67, and the second chronograph clutch receiving plate portion 61 d.
    The clutch ring 65 includes an annular concave portion 65c on the outer circumferential surface, and if a second operating lever engagement portion 6c is moved in the C3 direction in the inner side of the direction of rotation. in the direction of the annular concave portion 65c and is inserted in the annular concave portion 65c, the clutch ring 65 moves in the T1 direction on the dial side in the axis line direction against the spring force of the clutch spring 66, engagement between the clutch ring 65 of the second chronograph gear control mechanism portion 63 and the clutch receiving plate portion 61 d of the second body portion chronograph gear main 61 is released, and the second chronograph gear main body portion 61 can be freely rotated relative to the second control mechanism portion. At this time, according to the engagement between the second operating lever engaging portion 6c and the annular concave portion 65c of the clutch ring 65, the movement of the portion of the 64th shaft and the second chronograph hand 14 is prohibited.
    On the other hand, if the second operating lever engagement portion 6c is moved in a direction C4 and the engagement between the second operating lever engaging portion 6c and the annular concave portion 65c of the clutch ring 65 is released, the clutch ring 65 moves in the direction T2 of the rear cover side in the axis line direction under the operation of the spring force of the clutch spring. clutch 66, and the clutch ring 65 of the second chronograph gear control mechanism portion 63 and the clutch receiving plate portion 61 d of the second chronograph gear main body portion 61 are engaged with each other. Therefore, the second chronograph hand 14 is rotated about the center line C according to the rotation of the second chronograph gear main body portion 61, and a chronograph measurement can be made.
    The exhaust regulator mechanism 30 of the timepiece 2 is arranged to be similar to a conventional regulator exhaust, and comprises the rocker with a spring 31, an escape wheel 32, and a pallet fork 33 In the exhaust regulator mechanism 30, the escape wheel 32 is engaged with the second chronograph gear 61c of the second chronograph gear main body portion 61 by an exhaust pinion 32a.
    Accordingly, in the timepiece 2, the rotational speed of the barrel drum wheel 25 is still controlled by the exhaust regulator mechanism 30 by the gearset gear train 4 which includes the gearbox gear. minute chronograph 51c or the second chronograph gear 61c, and the speed control of the timepiece 2 is performed.
    Then, the operation of the timepiece 2 which includes the chronograph mechanism 1 arranged as described above will be described.
    In timepiece 2 with the chronograph mechanism, firstly, if the reset button or the reset button 9b is pressed in a direction H1 and the chronograph mechanism 1 is set to a reset position or a state S0, linked elements of the timepiece 2 adopt the state shown in FIG. 3.
    That is, in the reset state S0, on one side, the operating lever engagement portion of the hours 6a, the operating lever engagement portion of the minutes 6b, and the second operating lever engaging portion 6c are engaged with the concave portion 85c of the 85 hour chronograph clutch ring, the concave portion 55c of the chronograph clutch ring of the 55 minutes, and the concave portion 65c of the second chronograph clutch ring 65 respectively, the engagement between the respective clutch rings 85, 55 and 65 and the corresponding clutch bearing portions 81c, 51c and 61c is released. and, on the other hand, a hour hammer portion 91a, a minute hammer portion 91b, and a second hammer portion 91c of a hammer lever 91 are pressed to the corresponding core cams 88, 58 and 68, and the rotation of the shafts 84, 54 and 64 is adjusted or prohibited in a state where the hours chronograph shaft 84, the minute chronograph shaft 54, and the second chronograph shaft 64 are reset to a zero point which is an initial position.
    In the S0 reset state, the portion of the 83 hour chronograph gear control mechanism portion that occupies the most rotational load (moment of inertia) of the chronograph gear mechanism of the 80 hours is separated from the hours 81 main chronograph gear body part and only the hours 81 main chronograph gear body part is rotated according to the operation of the gear train for general manual operation , the part of the minute 53 chronograph gear control mechanism part that occupies the most rotational load (moment of inertia) of the minute chronograph gear mechanism 50 is separated from the main body portion 51 minute chronograph gearbox and only the 51 minute chronograph gear main body part is rotated according to the operation of the gear train for the op general manual feed, and the part of the second part of the chronograph gear control mechanism 63 which occupies the most rotational load (moment of inertia) of the second chronograph gear mechanism 60 is separated from the second part of the main chronograph gear body 61 and only the second chronograph gear main body portion 61 is rotated according to the operation of the gear train for general manual operation.
    With respect to the gear multiplier train 4, the barrel drum gear portion 24 of the barrel drum wheel 25 is connected to the escapement wheel 32 of the exhaust regulator mechanism 30 by the first wheel. 41 speed increasing intermediate part, the 51 minute chronograph gear main body part, the second 42 speed increasing intermediate wheel, and the second chronograph gear main body part 61, (for example, if is assumed that the minute chronograph gear main body portion 51 corresponds to a center wheel and pinion, the second speed increasing intermediate wheel 42 corresponds to a third wheel and pinion, and the second main body portion of chronograph gear 61 corresponds to a second wheel and pinion, except that the first intermediate wheel increasing the speed 41 has in addition a wheel, the gear multiplicateu The gear arrangement is arranged to be substantially similar to the gear train for manual operation in which conventional general speed control is performed.
    That is, in the gears multiplier gear 4 of the timepiece 2, although the minute chronograph gear mechanism 50 and the second chronograph gear mechanism 60 are incorporated in the gear train 4, since the parts of the minute chronograph gear mechanism 50 and the second chronograph gear mechanism 60 which are incorporated in the gear train 4 are limited to the main body portion the minute chronograph gear 51 and the second chronograph gear main body portion 61 in which the rotational load is small, control and exhaust operations substantially similar to the general regulation exhaust mechanism 30 which performs a speed control with respect to the general gear train gear for manual operation can be performed, and in this way, it is possible to substantially avoid a decrease in the quality of the control and exhaust operations.
    On the other hand, in the timepiece 2 provided with a chronograph mechanism, firstly, when the timepiece is positioned in the reset state SO, if the start button and the stop (operation) or the operation button 9a is pressed in a direction J1 and the chronograph mechanism 1 is set to a start position (start of chronograph measurement) or a state S1, the linked elements of the workpiece watchmakers 2 adopt the state shown in fig. 6. In addition, a case, where the start and stop (operation) button 9a is pressed in the J1 direction and the chronograph mechanism 1 is set to the start state (chronograph measurement start) S1 when the timepiece is positioned in a stop state S2 described below is also similar.
    That is to say, in the start state (beginning of chronograph measurement) S1, on one side, the hammer part of the hours 91a, the hammer part of the minutes 91b, and the second hammer portion 91c of the hammer lever 91 are separated from the corresponding core cams 88, 58 and 68 and the timing control of the 84 hour chronograph shaft, the minute chronograph shaft 54, and the second timing shaft 54. Chronograph 64 is released, on the other hand, the hours operation lever engaging portion 6a, the minutes operating lever engaging portion 6b, and the second lever engaging portion of operation 6c are extracted in the directions A4, B4 and C4 from the concave portion 85c of the 85 hours chronograph clutch ring, the concave portion 55c of the minute chronograph clutch ring 55, and the portion concave 65c of the respective second chronograph clutch ring 65 and the respective clutch rings 85, 55 and 65 are moved in the direction 12 under the operations of the respective clutch springs 86, 56 and 66 and are engaged with the corresponding clutch receiving plate portions 81c, 51c and 61d.
    In the start state (start of chronograph measurement) S1, the hour counterclockwise gear control mechanism part 83 of the 80 hour chronograph gear mechanism is engaged with the body part 81 Hours Chronograph Gear Main, Minute Chronograph Gear Mechanism 53 minutes chronograph gear mechanism part 50 is engaged with the minute chronograph gear main body part 51, the second chronograph gear control mechanism portion 63 of the second chronograph gear mechanism 60 is engaged with the second chronograph gear main body portion 61, the gear control mechanism portions. Chronograph 83, 53 and 63 are rotated integrally according to the chronograph measurement respectively, and the hour chronograph hand 14, the chronograph hand 15 minutes, and the second chronograph hand 16 are turned.
    In the timepiece 2 provided with a chronograph mechanism, compared to a case where the chronograph gear mechanisms 50 and 60 are positioned in the end of the gear train, since the second gear mechanism chronograph gear 60 which includes the second chronograph hand 16, or the minute chronograph gear mechanism 50 which includes the minute chronograph hand 15 is positioned in the middle of the gear train 4, the workpiece. watchmaking can be turned into a stable state without shaking. The case of the 80 hour chronograph gear mechanism which includes the 14 hour chronograph hand is also similar. As a result, a concern that the fluctuation of each of the chronograph hands 14, 15 and 16 occurs is decreased.
    In addition, in the timepiece 2 provided with a chronograph mechanism, if the start and stop button (operation) or the operation button 9a is pressed in the J1 direction again when the timepiece is positioned in the start state S1 and the chronograph mechanism 1 is set to the stop position (stop measuring chronograph) or state S2, the related elements of the timepiece 2 adopt the state shown in fig. 7.
    That is to say, in the stop state (chronograph measurement stop) S2, the operating lever engagement portion of the hours 6a, the lever engagement portion of 6 minutes operation, and the second operating lever engagement portion 6c are inserted in the directions A3, B3 and C3 in the concave portion 85c of the 85 hours chronograph clutch ring, the concave portion 55c of the minute chronograph clutch ring 55, and the concave portion 65c of the second chronograph clutch ring 65, respectively, which are against the respective clutch springs 86, 56 and 66, the clutch rings respective 85, 55 and 65 are moved in the direction T1, and the engagement between the rings and the corresponding clutch receiving plate portions 81c, 51c and 61d is released. As a result, the main gear body portions 81, 51 and 61 of the chronograph gear mechanisms 80, 50, 60 themselves constitute a portion of the respective wheel sets 4 and 5 and are rotatable. However, the rotation of the main gear body portions 81, 51 and 61 is not transmitted to the chronograph gear control mechanism parts 83, 53 and 63 of the chronograph gear mechanisms 80, 50 and 60 In addition, since the rotation of the shaft portions 84, 54 and 64 of the respective chronograph gear control mechanism portions 83, 53 and 63 is adjusted by the respective operating lever engagement portions 6a, 6b and 6c, also in this state, the concern that the fluctuation of the needles 14, 15 and 16 occurs is decreased.
    In addition, in the chronograph mechanism 1 of the timepiece 2, to perform the start, the stop, or the operation of return to zero of the chronograph measurement when the operation button 9a or the reset button 9b is pressed, the operation lever, the hammer lever, and the like are operated, and the operation is controlled by the control mechanism such as the operation cam as desired. However, since it is obvious that the operation can be carried out by the well-known structure or by appropriately using or combining structures similar to the well-known structure while the operation of the lever engagement parts of operation shown 6a, 6b and 6c is excluded, here the descriptions are omitted. For example, the hammer mechanism is arranged to perform the hammer operation which is known in JP-A-2004-294279 or the like.
    As described above, in the timepiece 2 provided with a chronograph mechanism, since a portion of the gear, which is the gear multiplier train 4 which is driven by the drum wheel 25 and in which the speed control of the wheel on the terminal side is effected by the exhaust regulating mechanism, consists of the chronograph gear main body parts 51 and 61 which are connected separately from the chronograph shafts 54 and 64 by the clutch mechanisms 59 and 69, the chronograph gear mechanisms 50 and 60 can be incorporated into the medium of the gear multiplier train 4 by the terminal or the last stage of the gear train 4. By therefore, the rotation of the chronograph gear mechanisms 50 and 60 can be stably performed and the increase in the load can be suppressed. In addition, in the timepiece 2 provided with a chronograph mechanism, since the chronograph gear main body parts 51 and 61 which are required for the transmission of rotation in the gear multiplier train 4 in the Chronograph gear mechanisms 50 and 60 may be separated from parts other than chronograph shafts 54 and 64 in chronograph gear mechanisms 50 and 60 by clutch mechanisms 59 and 69, the increase in load of the gear multiplier gear 4 due to the interposition of the chronograph gear main body parts 51 and 61 can be suppressed in maximum proportions.
    In addition, in the timepiece 2 provided with a chronograph mechanism, since the clutch mechanisms 59 and 69 consist of a vertical clutch in which the chronograph shafts 54 and 64 are connected to the parts of the chronograph. chronograph gear main body 51 and 61 in a substantially vertical direction, if the vertical clutch mechanisms 59 and 69 are set to the separated state, the chronograph shafts 54 and 64 are separated from the main body portions of the chronograph gear 51 and 61 and operate as the general timepiece, and if the vertical clutch mechanisms 59 and 69 are set to the connected state, the chronograph shafts 54 and 64 are connected to the main body parts of the main body. chronograph gear 51 and 61, and the chronograph operation can be performed.
    In addition, in the timepiece 2 provided with a chronograph mechanism, since the chronograph shafts 54 and 64 are arranged to be integrated with the clutch rings 55 and 65, the clutch springs 56 and 66, and the clutch spring support plates 57 and 67 and the chronograph gear main body portions 51 and 61 are arranged to be integrated with the clutch plates 51c and 61d, when the clutch mechanisms 59 and 69 are set to separate state, the load or disadvantage can be suppressed to a maximum extent due to the fact that the chronograph gear main body parts 51 and 61 are interposed in the middle part of gear train 4.
    In addition, in the timepiece 2 provided with a chronograph mechanism, since the minute chronograph gear main body part 51 of the 50 minutes chronograph gear mechanism and the second part of Chronograph gear main body 61 of the second chronograph gear mechanism 60 are incorporated in the middle of the gear multiplier train 4, the gear train can be effectively used.
    In addition, in the timepiece 2 provided with a chronograph mechanism, since the hour wheel 71 and the minute wheel 72 which are connected to the gear reduction gear 5 which is driven by the wheel of barrel drum 25 are provided, the hour wheel 71 and the minute wheel 72 can be driven in the state where the load is suppressed in the maximum proportion according to the rotation of the barrel drum wheel 25 in which the speed is effected by the exhaust regulator mechanism 30 and the interposition of the gear reduction gear train 5.
    In addition, in the timepiece 2 provided with a chronograph mechanism, a gear in the gear reduction gear train 5 consists of the hours chronograph gear 81 which is connected separately from the shaft. With the hours 84 clutch mechanism 84 and the gearwheel gear 5 operating as the hour chronograph gear, the gear train can be used effectively. In the timepiece 2 provided with a chronograph mechanism, since the chronograph gear mechanisms 50 and 60 are incorporated as a part of the gear train which is indispensable for speed regulation, the number of wheels, of pads, or the like related to the entire timepiece 2 provided with a chronograph mechanism can be minimized. Therefore, a compact configuration is possible.
    In addition, understandably, the disposition of each chronograph display can be modified according to the desire and may be different from the arrangement shown in FIG. 2. For example, the minute chronograph gear mechanism 50 can be arranged in the 12:00 position, the minute chronograph gear mechanism 50 can be positioned in the 2:00 position, the wheel 80 hours chronograph can be arranged in the 10:00 position, and the balance with a spring 31 can be arranged in the 6:00 position.
    In the description above, the timepiece 2 provided with a chronograph mechanism in which the second hand is not present to remove the load in maximum proportions is described. However, if desired, the chronograph timepiece may include a small seconds hand.
    FIG. 8a shows a timepiece 2B provided with a chronograph mechanism which comprises a small seconds hand 17 in the position of 12:00. The outline of a chronograph mechanism 1B of the timepiece 2B provided with a chronograph mechanism is shown in a sectional view of FIG. 9. In timepiece 2B with the chronograph mechanism 1B of FIGS. 8a and 9, the same elements as the elements shown in FIGS. 1 to 7 are indicated by the same reference numbers, and with respect to elements which are approximately similar but have some differences, a suffix M is added after the reference numbers of the elements of Figs. 1 to 7.
    As understood from FIG. 9, the chronograph mechanism 1B includes a second wheel 95 which engages with the second chronograph gear 61c of the second chronograph gear portion 61 of the second chronograph gear mechanism 60 by a second gear 95b by a second gear. intermediate gear 43. A shaft 95a of the second wheel 95 is rotatable about an axis line of center K which is positioned in the position of 12:00. In addition, although not illustrated in detail, in the chronograph mechanism 1B of FIG. 9, the same exhaust regulator mechanism 30 as the exhaust regulator mechanism 30 shown in FIG. 3 or the like is connected to the second chronograph gear portion 61 of the second chronograph gear mechanism 60 or the second gear 95b of the second wheel 95.
    Also in the timepiece 2B provided with a chronograph mechanism, a concern that the chronograph hands 16, 15 and 14 are shaken is decreased.
    In addition, in the case where the small seconds hand is present, the window can not be present as a timepiece 2C provided with a chronograph mechanism 1C shown in FIG. 8b instead of the window 7a which is formed in the dial 7 so that the rocker with a spring 31 is seen as FIG. 8a.
    In addition, for example, the display of the small seconds hand can be performed in the 9:00 position as a 2D timepiece provided with a 1D chronograph mechanism shown in FIG. 8c instead of the display of the small seconds hand which is made in the position of 12:00. In this case, for example, the regulating exhaust mechanism 30 other than the spring balance may be disposed in the position of approximately 12:00.
    权利要求:
    Claims (9)
    [1]
    claims
    A timepiece provided with a chronograph mechanism, comprising: a barrel drum wheel (25); and a gear multiplier train (4) which is driven by the barrel drum wheel (25) and wherein there is an output wheel whose speed is regulated by an exhaust regulator mechanism (30), wherein at least one gear of the gear train (4) is a chronograph gear (51c; 61c) to which a clutch mechanism (59; 69) is capable of isolating a chronograph shaft (54; 64) the chronograph mechanism (1).
    [2]
    2. Timepiece according to claim 1, wherein the clutch mechanism (59; 69) is an axial clutch whose axis (B; C) is directed in the direction of the thickness of the workpiece. and in which the chronograph shaft (54; 64) is coupled to the chronograph gear (51c; 61c) in a direction in the direction of the thickness of the timepiece.
    [3]
    The timepiece of claim 2, wherein the clutch mechanism (59; 69) comprises: - a clutch spring (56; 66); - a clutch spring support plate (57; 67) provided for locking one end of the clutch spring (56; 66); a clutch plate (51c; 61d); and - a clutch ring (55; 65) displaceable in one direction (T1) under the action of the clutch spring (56; 66) and in the opposite direction (T2) relative to the clutch plate (51c; 61d), and thus able to come into a position in which this clutch ring (55; 65) and the clutch plate (51c; 61d) are engaged, and in which the chronograph shaft (54; 64) is part of a rotary subassembly comprising the clutch ring (55; 65), the clutch spring (56; 66) and the clutch spring support plate (57; 67), and the chronograph gear (51c; 61c) is part of a rotary subassembly comprising the clutch plate (51c; 61d).
    [4]
    4. Timepiece according to claim 2 or 3, wherein the chronograph mechanism comprises a second chronograph shaft (54; 64), a second clutch mechanism (59; 69) and a second chronograph gear (51c). 61c) which is part of the gear train (4), the second clutch mechanism (59; 69) being able to separately couple the second chronograph shaft (54; 64) to the second chronograph gear ( 51c, 61c).
    [5]
    5. Timepiece according to one of claims 2 to 4, wherein the chronograph shaft is a minute chronograph shaft (54), the clutch mechanism is a minute clutch mechanism (59) , and the at least one chronograph gear is a minute chronograph gear (51c) to which the minute clutch mechanism (59) is able to mate the minute chronograph shaft (54) in isolation.
    [6]
    The timepiece of one of claims 2 to 5, further comprising: a gear reduction gear (5) which is driven by the barrel drum wheel (25); and an hour wheel (71) and a minute wheel (72) which are connected to the gear reduction gear (5).
    [7]
    The timepiece of claim 6, wherein a gear of the gear reduction gear (5) is an hour chronograph gear (81c) to which an hour clutch mechanism (89) is capable of individually coupling a chronograph shaft to the hours (84) of the chronograph mechanism (1).
    [8]
    The timepiece of claim 7, wherein an hour gear (71) and a minute gear (72) are kinematically connected to the hour chronograph gear (81c) by an intermediate gear (74).
    [9]
    9. Timepiece according to one of claims 1 to 8, further comprising: a second wheel (95) which is provided with a small second hand (17).
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    同族专利:
    公开号 | 公开日
    CN103197528A|2013-07-10|
    JP2013142549A|2013-07-22|
    JP5979881B2|2016-08-31|
    CN103197528B|2017-03-01|
    CH705988A2|2013-07-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE60334308D1|2002-10-07|2010-11-04|Complitime S A|DISPLAY DEVICE FOR WATCHES|
    JP4296019B2|2003-03-27|2009-07-15|セイコーインスツル株式会社|Chronograph watch with nulling structure|
    CH700459A2|2009-02-24|2010-08-31|Montres Breguet Sa|Timepiece, has chronograph comprising second and minute hands driven by gear train, and watch comprising minute and hour hands driven by another gear train, where gear trains are independent and driven using single energy source i.e. barrel|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2012001517A|JP5979881B2|2012-01-06|2012-01-06|Clock with chronograph mechanism|
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