JP4737633B2 - A clock with a calendar mechanism having a month wheel and a date wheel - Google Patents

Description

  The present invention relates to a timepiece with a calendar mechanism having a month wheel and a date wheel. In particular, the present invention displays the month by the month wheel placed inside the watch, displays the day by the date wheel placed outside the month wheel, and corrects the date indicator display at the end of the month other than February. The present invention relates to a timepiece with a calendar mechanism configured so as not to be necessary.

  In general, a machine body including a driving part of a timepiece is referred to as a “movement”. A state in which a dial and hands are attached to the movement and put into a watch case to make a finished product is called “complete” of the watch. Of the two sides of the main plate that constitutes the watch substrate, the side with the glass of the watch case, that is, the side with the dial is referred to as the “back side” or “glass side” or “dial side” of the movement. Called. Of the two sides of the main plate, the side with the back cover of the watch case, that is, the side opposite to the dial is referred to as the “front side” or “back side” of the movement. A train wheel incorporated on the “front side” of the movement is referred to as a “front train wheel”. The train wheel incorporated in the “back side” of the movement is called “back train wheel”.

  In general, the “12 o'clock side” indicates a side of a dial in which a scale corresponding to 12:00 of the dial is arranged. The “12 o'clock direction” indicates a direction from the rotation center of the hands toward the “12 o'clock side” in an analog timepiece. Further, “3 o'clock side” indicates the side of the analog timepiece on which the scale corresponding to 3 o'clock of the dial is arranged. “3 o'clock direction” indicates a direction from the rotation center of the hands toward “3 o'clock side” in an analog timepiece. The “6 o'clock side” indicates the side of the analog timepiece on which the scale corresponding to 6 o'clock of the dial is arranged. “6 o'clock direction” indicates a direction from the rotation center of the hands toward “6 o'clock side” in an analog timepiece. The “9 o'clock side” indicates the side of the analog timepiece on which the scale corresponding to 9 o'clock is arranged. “9 o'clock direction” indicates a direction from the center of rotation of the hands toward “9 o'clock side” in an analog timepiece. Furthermore, it may indicate the side on which the dials of other dials are arranged, such as “2 o'clock direction” and “2 o'clock side”.

  A conventional timepiece with a first calendar mechanism has a 1st day recess for detecting the first day of the date plate and a 30th day recess for detecting the 30th day of the date plate. Are formed at the same level on the inner diameter of the date plate. A date feeding claw and a month feeding claw are provided on the date indicator driving wheel. One day is detected by the one-day detection unit of the one-day detection lever, and the month feeding claw is controlled by the month feeding restriction unit of the month feeding control device so that the month feeding is not performed except for one day. On the 1st, the moonboard is sent by the moon feeding claw. In the case of Otsuki, regardless of the concave portion of the date plate, the date feeding claw is controlled by the date feeding regulating portion, and the date plate is fed by the date feeding claw for one day. In the case of a small moon, the 30-day detection unit engages with the concave portion of the date plate, the date feeding control unit controls the date feeding claw, and the date feeding claw feeds two teeth on the date plate. Only when the detection of the 30th and the detection of the small moon are detected at the same time, two teeth of the date plate are fed by the date feeding claw (see, for example, Patent Document 1).

  In the conventional second type of timepiece with calendar mechanism, the tooth part that the date feeding claw contacts, the 30-day recess for detecting the 30th day of the date plate, and the 1st day for detecting the date plate The first day recesses are formed in stages in different layers on the inner diameter of the date plate in the rotational axis direction of the date indicator driving wheel (see, for example, Patent Document 2).

Japanese Patent No. 2651150 JP 2005-195370 A

  In the conventional timepiece with a calendar mechanism of the first type, the first day recess of the date plate and the 30th day recess of the date plate are formed in the same hierarchy, so the 30 day detection unit is There is a problem that both the concave portions are detected and the operation of the calendar mechanism becomes unstable.

  In the conventional second type of timepiece with calendar mechanism, the 30th day recess of the date plate engaging the 30th day detection lever and the 1st day recess of the date plate engaging the 1st day detection lever are at different levels. Since it was formed, there was a problem that the thickness of the date plate increased and the thickness of the movement increased.

An object of the present invention is to provide a timepiece with a calendar mechanism in which the date feeding mechanism and the month feeding mechanism are thin, and therefore the movement is thin.
Another object of the present invention is to provide a timepiece with a calendar mechanism in which operations of a date feeding mechanism and a month feeding mechanism are stable.

  The present invention relates to a calendar mechanism timepiece having a month indicator and a date indicator, a date indicator that displays the date, a month indicator that displays the month, a date indicator configured to rotate once in 24 hours, A date feeding claw configured to be able to rotate the date indicator based on the rotation of the turning wheel, and a month feeding configured to be able to rotate the month indicator based on the rotation of the date driving wheel. Based on the claw, the date feed adjusting lever configured to be able to regulate the operation of the date feeding claw rotating the date indicator based on the rotation of the date indicator and the date indicator, and on the basis of the rotation of the date indicator The month feeding claw is configured to include a month feeding regulation lever configured to regulate the operation of rotating the month wheel.

  In the timepiece with a calendar mechanism of the present invention, the date dial includes an inner wall portion facing the inside of the movement, an outer wall portion facing the outside of the movement, a date display surface portion provided with date letters, and a date feeding claw date. It is comprised so that the date indicator tooth part which contacts a feed part may be included. In this timepiece with a calendar mechanism, the date indicator engaging portion of the date feeding adjustment lever is configured to come into contact with the inner wall portion of the date indicator, and the month feeding adjustment lever pin of the month feeding adjustment lever is arranged on the outer wall portion of the date indicator. Configured to contact with.

  In this timepiece with calendar mechanism, a date feed control cam for detecting when the date indicator is “30 days” is provided on the inner side wall portion of the date indicator, and the date indicator display is “31 days”. The month feeding control cam for detecting the time is the outer wall portion of the date dial. In the timepiece with the calendar mechanism of the present invention, the inner wall portion of the date indicator is used to control the operation of the date feeding adjustment lever, and the outer wall portion of the date indicator is used to control the operation of the month feeding adjustment lever. The operation of the date feed mechanism and the month feed mechanism is stable.

In the timepiece with calendar mechanism of the present invention, it is preferable that the month feeding adjustment lever is disposed below the date indicator and the date indicator driving wheel. With this configuration, it is possible to realize a timepiece with a calendar mechanism having a thin movement.

  In the timepiece with calendar mechanism of the present invention, it is preferable that the month feeding adjustment lever is configured to be able to linearly move along a rotation center of the date driving wheel and a straight line passing through the rotation center of the month driving wheel. With this configuration, it is possible to realize a timepiece with a calendar mechanism in which the operations of the date feeding mechanism and the month feeding mechanism are stable.

In the timepiece with a calendar mechanism of the present invention, it is preferable that a part of the month feeding adjustment lever is arranged so as to overlap with a part of the date indicator driving wheel and a part of the date feeding regulating lever. In the timepiece with calendar mechanism of the present invention, it is preferable that the date indicator driving wheel and the month feeding adjustment lever are arranged so as not to overlap the battery . By configuring in this way, it is possible to realize a timepiece with a calendar mechanism having a thin movement.

  Next, the operation in a typical display state in the timepiece with calendar mechanism of the present invention will be described. In the timepiece with the calendar mechanism of the present invention, in the state where “30 days” of “large month” is displayed, the display of the month is “MAR” corresponding to “March”. When the date indicator driving wheel rotates, the date feeding portion of the date feeding finger contacts one tooth of the date dial, and the month feeding portion of the month feeding finger does not contact the moon star wheel tooth portion of the month star wheel. When the date indicator driving wheel further rotates, the date feeding finger further rotates to feed the date indicator counterclockwise by one tooth. On the other hand, the month feeding portion of the month feeding claw does not contact the moon star wheel tooth portion of the moon star wheel. Accordingly, the date feeding claw feeds the date wheel by one tooth counterclockwise, and the date display changes to “31st”. The moon feeding portion of the moon feeding claw rotates without contacting the moon star wheel teeth of the moon star wheel. Therefore, when changing from the state of displaying “30th day” of “large month” to the state of displaying “31st day”, month feeding is not performed, so the display of the month is not changed and “MAR” is changed. It remains. The operation in the “large moon” other than “March” is the same as the operation in “March”.

  In the timepiece with the calendar mechanism of the present invention, in the state where “30 days” of “small month” is displayed, the date display is “APR” corresponding to “April”. "Small month" is detected based on the rotation of the month and the month wheel, and "30 days" is detected at the same time. The date feeding portion of the date feeding claw feeds the first tooth of the date dial, and the month feeding portion of the month feeding claw rotates so as not to contact the moon star wheel tooth portion of the moon star wheel. When the date indicator driving wheel 210 further rotates, the date display changes to “31st”. When the date indicator driving wheel further rotates, the date feeding claw further rotates, and the second tooth of the date indicator can be fed counterclockwise. On the other hand, the month feeding portion of the month feeding claw can feed only one tooth of the moon star wheel tooth portion of the moon star wheel in the clockwise direction. Therefore, the date display changes to “1 day” and the month display changes to “MAY”. The operation at the end of “small month” other than “April” is the same as the operation at the end of “April”.

  As described above, in the timepiece with a calendar mechanism of the present invention, the date feed control lever is operated by the function of the date feed control cam provided on the inner side wall portion of the date dial to perform date feed at the end of the month. The month feeding adjustment lever is operated by the action of the month feeding control cam provided on the outer wall portion of the lens, so that the month feeding can be performed.

  In the timepiece with a calendar mechanism of the present invention, the date indicator contact portion of the date feeding adjustment lever is in contact with the inner wall portion of the date indicator, and the date indicator contact portion of the month feeding adjustment lever is in contact with the outer wall portion of the date indicator. Thus, the operation of the date feeding mechanism and the month feeding mechanism is stable. Further, in the timepiece with calendar mechanism of the present invention, a part of the date feeding mechanism and a part of the month feeding mechanism can be arranged to overlap each other, so that the thickness of the movement can be reduced.

  Embodiments of a timepiece with a calendar mechanism of the present invention will be described below with reference to the drawings. The embodiment of the present invention described below is an embodiment when a timepiece with a calendar mechanism is constituted by an analog electronic timepiece. In the following description, a configuration in which the calendar mechanism timepiece of the invention is applied to an analog electronic timepiece is described, but the invention can be applied not only to an analog electronic timepiece but also to a mechanical timepiece. That is, the concept of “timepiece with calendar mechanism” in this specification is a concept including “analog electronic timepiece”, “mechanical timepiece”, and analog timepieces of all other operating principles.

(1) Overall structure of the movement:
1 to 4 and 23, the movement 100 is constituted by an analog electronic timepiece. The movement 100 includes a base plate 102 that constitutes a substrate of the movement 100. A dial 104 is attached to the glass side of the movement 100. A winding stem 110 is rotatably incorporated in the main plate 102. The switching device / setting device includes a winding stem 110, a setting lever 468, and a winding stem positioning portion 663 of the battery plus terminal 662.

(2) Configuration on the front side of the movement:
Next, the structure on the front side of the movement will be described. Referring to FIGS. 2 to 4 and 23, in movement 100, battery 440 that constitutes the power source of the watch is arranged on the back cover side (front side) of main plate 102. The center of the battery 440 is preferably disposed between the “10 o'clock direction” and the “2 o'clock direction” in the movement 100. More preferably, the center of the battery 440 is arranged between the “11 o'clock direction” and the “1 o'clock direction” in the movement 100. A crystal unit 650 constituting the source oscillation of the timepiece is disposed on the back cover side of the main plate 102. A crystal resonator is accommodated in the crystal unit 650. A motor drive unit (driver) that outputs a motor drive signal to the step motor based on the vibration of the crystal resonator is built in the integrated circuit (IC) 654.

  The crystal unit 650 and the integrated circuit 654 are fixed to the circuit board 610. The circuit board 610, the crystal unit 650, and the integrated circuit 654 constitute a circuit block 612. The circuit block 612 is disposed on the back cover side of the main plate 102. The battery minus terminal 660 is provided for conducting the cathode of the battery 440 and the minus pattern of the circuit board 610. The battery plus terminal 662 is provided to connect the anode of the battery 440 and the plus pattern of the circuit board 610. A coil block 630, a stator 632, and a rotor 634 constituting the step motor are disposed on the back cover side of the main plate 102.

  The fifth wheel & pinion 441 is configured to rotate by the rotation of the rotor 634. By the rotation of the fifth wheel & pinion 441, the fourth wheel & pinion 442 is configured to rotate. The third wheel & pinion 444 is configured to rotate by the rotation of the fourth wheel & pinion 442. The minute wheel 446 is configured to rotate by the rotation of the third wheel & pinion 444. The minute wheel 448 is configured to rotate by the rotation of the minute wheel 446. The hour wheel 180 is configured to rotate by the rotation of the minute wheel 448. The hour wheel 180 includes a cylindrical gear 181 and a date feeding gear 182. An hour hand 464 is attached to the hour wheel 180. The hour wheel 180 is configured to rotate once in 12 hours.

  The fourth wheel & pinion 442 is configured to rotate once per minute. A second hand 460 is attached to the fourth wheel & pinion 442. The minute wheel 446 is configured to rotate once per hour. A minute hand 462 is attached to the minute wheel 446. A slip mechanism is provided in the minute wheel 446. A setting lever 468 is provided for setting the gear portion of the fifth wheel & pinion 441 and stopping the rotation of the second hand 460 when the winding stem 110 is pulled out to the second stage to adjust the hand. The center pipe 103 is fixed to the main plate 102. The center pipe 103 extends from the back cover side of the main plate 102 to the dial side of the main plate 102. A train wheel bridge 158 that rotatably supports the front wheel train is disposed on the back cover side of the main plate 102.

(3) Configuration of switching mechanism and needle alignment mechanism:
Below, the structure of a switching mechanism and a needle alignment mechanism is demonstrated. 4 and 23, in the movement 100, a winding stem 110 is rotatably incorporated in the main plate 102. The winding stem 110 includes a tip shaft portion 111, a first corner portion 112, a first shaft portion 113, a setting operation shaft portion 114, a second shaft portion 115, and a second corner portion formed in order from the tip side. 116, a third shaft portion 117, a first abacus ball portion 118, a second abacus ball portion 119, and a main shaft portion 120. The tip shaft portion 111 of the winding stem 110 is incorporated so as to be rotatable with respect to the winding stem tip hole of the main plate 102. The original shaft portion 120 of the winding stem 110 is incorporated so as to be rotatable with respect to the winding stem original hole of the main plate 102. The outer diameter of the first abacus ball portion 118 is preferably configured to be larger than the outer diameter of the second abacus ball portion 119.

  The pinion wheel 472 is disposed so as to have the same rotation axis as that of the winding stem 110. When the winding stem 110 is at the 0th stage and the 1st stage, the interlocking square hole of the pinion wheel 472 is rotatable with respect to the first shaft portion 113 of the winding stem 110, and even if the winding stem 110 is rotated, The pinion wheel 472 is configured not to rotate. When the winding stem 110 is in the second stage, the interlocking square hole of the hand setting wheel 472 is fitted with the first corner portion 112 of the winding hand 110 so that the setting wheel 472 rotates based on the rotation of the winding hand 110. Composed. When the winding stem 110 is in the 0th stage, the winding stem positioning portion 663 of the battery plus terminal 662 is configured to be positioned between the main shaft portion 120 and the second abacus ball portion 119. When the winding stem 110 is in the first stage, the winding stem positioning portion 663 of the battery plus terminal 662 is configured to be positioned between the first abacus ball portion 118 and the second abacus ball portion 119. When the winding stem 110 is in the second stage, the winding stem positioning portion 663 of the battery plus terminal 662 is configured to be positioned between the first abacus ball portion 118 and the third shaft portion 117. Therefore, in the switching device configured as described above, the winding stem 110 can be positioned at three axial positions (the 0th stage, the first stage, and the second stage) by the winding stem positioning portion 663 of the battery plus terminal 662. .

  When the winding stem 110 is in the 0th stage and when the winding stem 110 is in the 1st stage, the setting lever 468 does not come into contact with the setting lever 468 so that the setting operation shaft portion 114 of the winding stem 110 does not contact the fifth wheel. It is comprised so that the gear part of 441 may not be regulated. When the winding stem 110 is in the second stage, the setting operation shaft portion 114 of the winding stem 110 comes into contact with the setting lever 468 to set the gear portion of the fifth wheel & pinion 441.

  Referring to FIGS. 1 and 4, the first calendar correction wheel 291 is arranged so as to have the same rotation axis as the rotation axis of the winding stem 110. When the winding stem 110 is in the 0th stage, the interlocking round hole of the first calendar correcting wheel 291 can be rotated with respect to the third shaft portion 117 of the winding stem 110, and even if the winding stem 110 is rotated, the first calendar The correction wheel 291 is configured not to rotate. When the winding stem 110 is in the first stage, the interlocking round hole of the first calendar correction wheel 291 is fitted to the second corner portion 116 of the winding stem 110, and the first calendar correction wheel 291 is moved based on the rotation of the winding stem 110. Configured to rotate. When the winding stem 110 is in the second stage, the interlocking round hole of the first calendar correction wheel 291 can be rotated with respect to the second shaft portion 115 of the winding stem 110, and the first calendar can be rotated even if the winding stem 110 is rotated. The correction wheel 291 is configured not to rotate.

  The minute wheel of the minute wheel 448 is arranged so as to mesh with the small iron wheel 449. The small iron wheel 449 is disposed between the main plate 102 and the train wheel bridge 158. The minute pinion of the minute wheel 448 is located on the dial side of the main plate 102 and is configured to mesh with the cylindrical gear 181 of the hour wheel 180. The hole portion of the hour wheel 180 is rotatably supported on the outer peripheral portion of the shaft portion of the center pipe 103.

(4) Configuration of calendar mechanism:
Next, the configuration of the calendar mechanism will be described. FIG. 1 is a plan view showing a structure on the back side of the movement 100 as viewed from the dial side in a state where March 30 is displayed. 1 to 5, the movement 100 includes a date indicator driving wheel 210 that is rotated by the rotation of the hour wheel 180, a date indicator 220 that displays a date, and a date for setting the position of the date indicator 220 in the rotation direction. The jumper 260, the month indicator 240 for displaying the month, the month jumper 262 for regulating the position of the month indicator 230 in the rotational direction, and the date indicator 220 can be rotated counterclockwise with respect to the main plate 102. And a date indicator holder 264 for supporting the vehicle. The date driving wheel 210 is configured to rotate counterclockwise once every 24 hours. The center of rotation of the date indicator driving wheel 210 is preferably disposed between “4 o'clock direction” and “8 o'clock direction” in the movement 100. More preferably, the center of rotation of the date indicator driving wheel 210 is arranged between “5 o'clock direction” and “7 o'clock direction” in the movement 100. The date indicator driving wheel 210 is preferably arranged so as not to overlap the battery 440. The rotation center of the date wheel 220 is preferably the same position as the rotation center of the hour wheel 180.

  The date indicator 220 includes an inner wall portion 221 facing the inside of the movement, an outer wall portion 222 facing the outside of the movement, a date plate portion 225 including a date display surface portion 224 provided with date letters 223, and a date indicator tooth. Part 226. The date indicator tooth portion 226 includes 31 internal teeth arranged at equal angular intervals (360/31 degrees). The date character 223 is a number indicating 31 “dates” (for example, “1”, “2”, “3”,..., “29”) arranged at equal angular intervals (360/31 degrees). “30”, “31”), and the like.

  An inner wall portion 221 of the date indicator 220 is disposed below the date display surface portion 224. The inner side wall portion 221 of the date indicator 220 is disposed on the lower surface side of the date indicator 220, and the date indicator tooth portion 226 is disposed on the lower surface side of the date indicator 220. A 30-day detection cam 227 for detecting when the date indicator 220 displays “30 days” is provided on the inner wall portion 221 of the date indicator 220. The 30-day detection cam 227 constitutes a date feed control cam. The 30-day detection cam 227 is formed on the inner wall portion 221 of the date dial 220 only at one location as a concave portion that is recessed outward in the radial direction. The 30-day detection cam 227 is preferably formed so that the opening angle is less than (360/31) degrees. The 30-day detection cam 227 is preferably formed so that the opening angle is in the range of 9 degrees to 11 degrees.

A 31-day detection cam 228 for detecting when the date indicator 220 displays “31st” is provided on the outer wall portion 222 of the date indicator 220. The 31-day detection cam 228 constitutes a month feed control cam. The portion of the outer wall portion 222 of the date indicator 220 excluding the portion of the 31-day detection cam 228 constitutes a month feeding correction cam 229. The 31-day detection cam 228 is formed on the outer wall 222 of the date dial 220 as a concave portion that is recessed inward in the radial direction. The 31-day detection cam 228 is preferably formed so that the opening angle is less than (360/31) degrees. The 31-day detection cam 228 is preferably formed so that the opening angle is in the range of 9 degrees to 11 degrees. The month feeding control cam, that is, the uppermost position of the 31st day detection cam 228 is preferably configured to be the same position as the upper surface of the date indicator tooth portion 226. It is also preferable that the position is higher than the upper surface. Further, the month feed control cam, that is, the uppermost position of the 31st day detection cam 228 is configured to be the same position as the day feed control cam, that is, the 30th day detection cam 227. It is also preferable that the 30-day detection cam 227 is configured to be positioned above the lowermost part. By configuring in this way, it is possible to realize a timepiece with a calendar mechanism in which the operation of the cam is stable and the movement is thin.

  The month indicator 240 includes a moon plate 245 including a month display surface portion 244 provided with a month character 243, a month star indicator 247 including a month star wheel tooth portion 246, and the indication of the month indicator 240 is “large moon” (that is, “January”, “March”, “May”, “July”, “August”, “October”, “December”). The month cam 248 includes a January cam 248A corresponding to December and January, a March cam 248B corresponding to March, a May cam 248C corresponding to May, and a July cam 248D corresponding to July and August. It is comprised so that a circular arc part may be included in five places of October cam 248E corresponding to October.

  The moon star wheel tooth portion 246 includes twelve external teeth arranged at equal angular intervals (360/12 degrees). The month characters 243 are twelve “month” characters (for example, “JAN”, “FEB”,..., “NOV”, “DEC”, etc.) arranged at equal angular intervals (360/12 degrees). ). Alternatively, the month letter 243 may be 12 numbers, symbols, letters, abbreviations, or any suitable combination thereof (e.g., “January”) arranged at equal angular intervals (360/12 degrees). , "February", ..., "November", "December", or "January", "February", ..., "November", "December", or (“Jan”, “Feb”,..., “Nov”, “Dec”, etc.)).

  When the small month detection cam 249 displays the month wheel 240 as “small month” (that is, “February”, “April”, “June”, “September”, “November”). Is provided to detect The small moon detection cams 249 are configured as five concave portions recessed inward in the radial direction. The small moon detection cam 249 includes a February cam 249A corresponding to February, a April cam 249B corresponding to April, a June cam 249C corresponding to June, a September cam 249D corresponding to September, and a November. Are configured to include five recesses of the November cam 249E. The reference positions of the small moon detection cams 249 are in order of (2 * 360/12 degrees), (2 * 360/12 degrees), (3 * 360/12 degrees), (2 * 360/12) Degrees) and (3 * 360/12 degrees).

  The setting portion of the date jumper 260 is configured to set the date indicator tooth portion 226. The setting portion of the month jumper 262 is configured to set the moon star wheel tooth portion 246. The rotation center of the month wheel 240 is preferably at the same position as the rotation center of the hour wheel 180. Therefore, the rotation center of the month indicator 240 is preferably at the same position as the rotation center of the date indicator 220. The month display surface portion 244 of the month indicator 240 is disposed inside the date display surface portion 224 of the date indicator 220.

  A date feeding claw 212 for feeding the date indicator tooth portion 226 is provided to rotate integrally with the rotation of the date indicator driving wheel 210. The date feeding claw 212 includes a date feeding portion 213, a date feeding claw spring portion 214, and a date feeding claw pin 215 arranged at the tip. The base portion of the date feeding claw spring portion 214 is fixed to the date indicator driving wheel 210. A month feeding claw 216 for feeding the moon star wheel tooth portion 246 is provided so as to rotate integrally with the rotation of the date indicator driving wheel 210. The month feeding claw 216 includes a month feeding portion 217, a month feeding claw spring portion 218, and a month feeding claw pin 219 arranged at the tip. The base part of the month feeding claw spring part 218 is fixed to the date indicator driving wheel 210. The date feeding claw 212 is rotated by the rotation of the date indicator driving wheel 210, and the date feeding claw 212 is configured to be able to rotate counterclockwise by 360/31 degrees by the date feeding claw 212. . Further, the month feeding claw 216 is rotated by the rotation of the date indicator driving wheel 210, and the month feeding pin 240 is configured to be able to rotate clockwise by 360/12 degrees by the month feeding claw 216. The

  The date feeding claw 212 and the month feeding claw 216 are made of an elastically deformable material (for example, engineering plastic such as polyacetal). The date feeding claw 212 and the month feeding claw 216 can be formed so as to be integrated with the date indicator driving wheel 210. The date feeding claw 212 can be formed separately from the date driving wheel 210 and can be configured to rotate integrally with the rotation of the date driving wheel 210. The month feeding claw 216 may be formed separately from the date indicator driving wheel 210 and may be configured to rotate integrally with the rotation of the date indicator driving wheel 210.

  The date feeding adjustment lever 230 is disposed between the month plate 245 and the date dial holder 264 so as to be rotatable. The date feeding adjustment lever 230 is positioned based on the rotation of the date indicator 220 and the rotation of the month indicator 240, and is configured to be able to regulate the operation of the date feeding finger 212 rotating the date indicator 220. The rotation center 231 of the date feeding control lever 230 is preferably arranged between the “6 o'clock direction” and the “8 o'clock direction” in the movement 100. The date feed setting lever 230 is preferably disposed between the “6 o'clock direction” and the “10 o'clock direction” in the movement 100.

  The date feeding adjustment lever 230 is arranged so as to be able to come into contact with the month cam engaging portion 232 arranged so as to be in contact with the month cam 248 of the month wheel 240 and the date feeding claw pin 215 of the date feeding claw 212. It includes a date feeding claw setting portion 233 and a date indicator engaging portion 234 arranged so as to be in contact with the inner wall portion 221 and the 30 day detection cam 227 of the date indicator 220. Therefore, the date feeding claw pin 215 of the date feeding claw 212 is configured to be able to contact the date feeding regulation lever 230. By configuring in this way, the operations of the date feeding claw 212 and the date feeding regulating lever 230 can be stabilized.

  A month feeding adjustment lever 250 is disposed between the main plate 102 and the date indicator driving wheel 210. The month feeding regulation lever 250 is configured such that its position is regulated based on the rotation of the date indicator 220, and the operation of the month feeding claw 216 to rotate the month indicator 240 can be regulated. The month feeding claw pin 219 of the month feeding claw 216 is configured to be able to contact the month feeding regulation lever 250. By comprising in this way, the operation | movement of the month feeding nail | claw 216 and the month feeding regulation lever 250 can be stabilized. The month feeding setting lever 250 is preferably disposed between “4 o'clock direction” and “8 o'clock direction” in the movement 100. The month feed setting lever 250 includes a month feeding claw setting portion 253 disposed so as to be able to come into contact with the month feeding claw pin 219 of the month feeding claw 216, the 31-day detection cam 228 and the month feeding setting cam 229 of the date indicator 220. It includes a month feed setting lever pin 254 arranged so as to be in contact with the guide and a guide portion 255 for guiding the movement of the month feeding setting lever 250.

  A month feeding correction lever guide 105 is provided on the main plate 102. The month feed regulation lever 250 is configured such that its guide portion 255 can move along the month feed regulation lever guide portion 105. The guide portion 255 can be configured to include a long hole portion. The month feeding regulation lever guide portion 105 can be configured to include a cylindrical portion. By comprising in this way, the action | operation of the month feeding adjustment lever 250 can be stabilized.

  The month feeding adjustment lever 250 is disposed below the date indicator 220 and the date indicator driving wheel 210 (the side where the main plate 102 is present). The month feeding adjustment lever 250 is configured to be capable of linear movement along a straight line passing through the rotation center of the date indicator driving wheel 210 and the rotation center of the month indicator 240. A part of the month feeding adjustment lever 250 is disposed so as to overlap a part of the date indicator driving wheel 210. A part of the month feeding adjustment lever 250 may be disposed so as to overlap a part of the date feeding adjustment lever 230. In particular, it is preferable that the date feeding claw setting portion 233 of the date feeding setting lever 230 is disposed so as to overlap with the outer portion of the guide portion 255 of the month feeding setting lever 250 in a sectional view.

  Further, the date driving wheel 210 disposed on the back side of the movement 100 is preferably disposed so as not to overlap the battery 440 disposed on the front side of the movement 100 in a cross-sectional view. Further, the month feeding adjustment lever 250 disposed on the back side of the movement 100 is preferably disposed so as not to overlap the battery 440 disposed on the front side of the movement 100 in a sectional view. By configuring in this way, it is possible to realize a timepiece with a calendar mechanism having a thin movement.

(5) Configuration of calendar correction mechanism:
Referring to FIGS. 1 and 4, in the movement 100, the calendar correction mechanism includes a first calendar correction wheel 291, a second calendar correction wheel 292, a date correction wheel 293, a month correction wheel 294, and a correction wheel spring 595. Including. The correction wheel spring 595 can be formed integrally with the date dial presser 264. The correction wheel spring 595 is configured to pressurize the date correction wheel 293 toward the main plate 102. The date corrector setting wheel 293 is configured to be able to swing along a guide hole provided in the main plate 102. The center of rotation of the date corrector setting wheel 293 is preferably disposed between “1 o'clock direction” and “2 o'clock direction” in the movement 100. The center of rotation of the month corrector setting wheel 294 is preferably arranged between “12 o'clock direction” and “1 o'clock direction” in the movement 100.

  In the state where the winding stem 110 is in the first stage, the interlocking hole of the first calendar correction wheel 291 is fitted with the second corner portion 116 of the winding stem 110, and the first calendar correction wheel 291 is moved based on the rotation of the winding stem 110. Configured to rotate. In this state, when the winding stem 110 is rotated in the first direction, the second calendar correction wheel 292 is configured to rotate based on the rotation of the first calendar correction wheel 291.

  Based on the rotation of the second calendar correction wheel 292, the date correction wheel 293 swings to a position where it meshes with the date wheel tooth portion 226 of the date wheel 220 and stops, and the date correction wheel 293 rotates at the correction position. Configured as follows. When the date corrector setting wheel 293 rotates at the correction position, the date dial 220 can be rotated in the counterclockwise direction. When the winding stem 110 is rotated in the second direction opposite to the first direction in the state where the winding stem 110 is in the first stage, the second calendar is based on the rotation of the first calendar correcting wheel 291. The correction wheel 292 is configured to rotate.

  Based on the rotation of the second calendar correction wheel 292, the date correction wheel 293 moves away from the date indicator tooth portion 226 of the date indicator 220, swings to a position where it meshes with the month correction wheel 294, and stops. The date corrector setting wheel 293 is configured to rotate at the correction position. The tooth portion of the month corrector setting wheel 294 is configured to mesh with the moon star wheel tooth portion 246. When the date corrector setting wheel 293 rotates at the correction position, the month indicator 240 can be rotated in the clockwise direction through the rotation of the month corrector setting wheel 294.

(6) Operation of timepiece with calendar mechanism:
(6.1) Time information display:
Next, the operation of the timepiece with calendar mechanism of the present invention will be described. Referring to FIG. 22, the movement 100 is incorporated in a watch case 310, and the dial 104, the crown 310, the hour hand 464, the minute hand 462, and the second hand 460 are attached to constitute the complete 300. From the window 304 provided on the dial 104, the character “30” indicating the date provided on the date display surface portion 224 and the character “MAR” indicating the month provided on the month display surface portion 244 can be read. That is, the complete 300 displays “March 30”. FIG. 22 shows an embodiment of a timepiece with a calendar mechanism in which a window 304 is formed in the “3 o'clock direction” of the dial 104. By appropriately selecting the arrangement and orientation of the date and month characters, A watch with a calendar mechanism in which a window is formed at a position other than “3 o'clock” can also be realized.

  1 to 4, 22, and 23, when the step motor is driven by the battery 440, the crystal unit 650, and the integrated circuit (IC) 654, the rotor 634 rotates at a constant speed. Based on the rotation of the rotor 634, the fourth wheel & pinion 442 rotates through the rotation of the fifth wheel & pinion 441. The second hand 460 attached to the fourth wheel & pinion 442 displays “second” in the time information. The third wheel & pinion 444 rotates based on the rotation of the fourth wheel & pinion 442. The minute wheel 446 rotates based on the rotation of the third wheel & pinion 444. The minute hand 462 attached to the minute wheel 446 displays “minute” in the time information. The minute wheel 448 rotates based on the rotation of the minute wheel 446. The hour wheel 180 rotates based on the rotation of the minute wheel 448. “Hour” in the time information is displayed by the hour hand 464 attached to the hour wheel 180.

(6.2) Calendar feed operation:
(6 ・ 2 ・ 1) In “Large Moon”, the operation other than the end of the month:
Next, the calendar feed operation of the timepiece with calendar mechanism of the present invention will be described. Referring to FIGS. 2 to 4 and 24, the month cam engaging portion 232 of the date feeding adjustment lever 230 is in contact with the month cam 248 of the month indicator 240 and the date other than the end of the “large month”. The date indicator engaging portion 234 of the feed regulating lever 230 is disposed at a position where it can contact the inner wall portion 221 of the date indicator 220. The month feeding regulation lever pin 254 of the month feeding regulation lever 250 is disposed so as to be in contact with the month feeding regulation cam 229 of the date indicator 220, and the month feeding regulation lever 250 is disposed at a position radially outward of the main plate 102. The

  In this state, when the date indicator driving wheel 210 is rotated by the rotation of the hour wheel 180, the date feeding claw 212 and the month feeding claw 216 are also rotated at the same time. When the date feeding claw 212 rotates, the date feeding claw pin 215 of the date feeding claw 212 comes into contact with the date feeding claw setting portion 233 of the date feeding setting lever 230, and the date feeding portion 213 of the date feeding claw 212 is moved to the date driving wheel. It moves in the direction toward the center of rotation 210. Therefore, the date feeding part 213 of the date feeding finger 212 can feed the date indicator tooth part 226 of the date indicator 220 by one tooth in the counterclockwise direction. The date feeding operation can be performed, for example, between 8 pm and 12 pm.

  When the month feeding claw 216 rotates, the month feeding claw pin 219 of the month feeding claw 216 contacts the month feeding claw setting portion 253 of the month feeding setting lever 250, and the month feeding portion 217 of the month feeding claw 216 It moves in a direction toward the rotation center of the rotating wheel 210. Therefore, the month feeding portion 217 of the month feeding claw 216 can rotate without contacting the moon star wheel tooth portion 246 of the month star wheel 247. Accordingly, in the “large month”, the month display is not changed because the month feeding is not performed in the operation other than the end of the month.

(6.2.2) Operation other than the end of the month in “Small Moon”:
Referring to FIGS. 2 to 4 and 24, the month cam engagement portion 232 of the date feeding adjustment lever 230 is located at a position corresponding to the small month detection cam 249 of the month indicator 240 except at the end of the “small month”. Further, the date indicator engaging portion 234 of the date feeding adjusting lever 230 is arranged at a position where it can contact the inner wall portion 221 of the date indicator 220. The month feeding regulation lever pin 254 of the month feeding regulation lever 250 is disposed so as to be in contact with the month feeding regulation cam 229 of the date indicator 220, and the month feeding regulation lever 250 is disposed at a position radially outward of the main plate 102. The Since the date indicator engaging portion 234 of the date feeding adjustment lever 230 is in a position where it can contact the inner wall portion 221 of the date indicator 220, the date feeding adjustment lever 230 does not rotate in the clockwise direction. Accordingly, in the “small month”, the day feeding operation other than the end of the month is the same as the operation other than the end of the “large month” as described above.

(6 ・ 2 ・ 3) In “Large Moon”, change from “30 days” to “31 days”:
Referring to FIGS. 1 to 5 and FIG. 24, in the state where “30 days” of “large month” is displayed, the display of the month is “MAR” corresponding to “March”. In this state, the month cam engaging portion 232 of the date feeding adjustment lever 230 contacts the March cam 248B of the month indicator 240, and the date indicator engaging portion 234 of the date feeding adjustment lever 230 is in contact with the date indicator 220. The 30-day detection cam 227 is disposed at a position corresponding to the recess. The month feeding regulation lever pin 254 of the month feeding regulation lever 250 is disposed so as to be in contact with the month feeding regulation cam 229 of the date indicator 220, and the month feeding regulation lever 250 is disposed at a position radially outward of the main plate 102. The The month feeding claw pin 219 of the month feeding claw 216 is at a position away from the month feeding claw setting portion 253 of the month feeding setting lever 250.

  Referring to FIG. 6, when the date indicator driving wheel 210 is rotated by the rotation of the hour wheel 180, the date feeding claw 212 and the month feeding claw 216 are also rotated at the same time. When the date feeding claw 212 rotates, the date feeding claw pin 215 of the date feeding claw 212 comes into contact with the date feeding claw setting portion 233 of the date feeding setting lever 230, and the date feeding portion 213 of the date feeding claw 212 is moved to the date driving wheel. It moves in the direction toward the center of rotation 210. When the month feeding claw 216 rotates, the month feeding claw pin 219 of the month feeding claw 216 contacts the month feeding claw setting portion 253 of the month feeding setting lever 250, and the month feeding portion 217 of the month feeding claw 216 It moves in a direction toward the rotation center of the rotating wheel 210.

  Referring to FIG. 7, when the date indicator driving wheel 210 further rotates, the date feeding finger 212 further rotates, and the date feeding portion 213 of the date feeding finger 212 is attached to one tooth of the date indicator tooth portion 226 of the date indicator 220. Contact. On the other hand, the month feeding portion 217 of the month feeding claw 216 rotates so as not to contact the moon star wheel tooth portion 246 of the moon star wheel 247.

  Referring to FIG. 8, when the date indicator driving wheel 210 further rotates, the date feeding finger 212 further rotates, and the date indicator tooth portion 226 of the date indicator 220 can be fed counterclockwise by only one tooth. On the other hand, the month feeding portion 217 of the month feeding claw 216 rotates so as not to contact the moon star wheel tooth portion 246 of the moon star wheel 247.

  Referring to FIG. 9, the date feeding claw 212 finishes feeding the date indicator tooth portion 226 of the date indicator 220 by one tooth counterclockwise, and the date display changes to “31st”. The month feeding portion 217 of the month feeding claw 216 can rotate without contacting the moon star wheel tooth portion 246 of the moon star wheel 247. Therefore, when changing from the state of displaying “30th day” of “large month” to the state of displaying “31st day”, month feeding is not performed, so the display of the month is not changed and “MAR” is changed. It remains. The operation in the “large moon” other than “March” is the same as the operation in “March”.

(6 ・ 2 ・ 4) In “Large Moon”, the operation changes from “31st” to “1st” of the next month:
Referring to FIGS. 2 to 4, 10, and 24, in a state where “31st day” of “large month” is displayed, the display of the month is “MAR” corresponding to “March”. In this state, the month cam engaging portion 232 of the date feeding adjustment lever 230 contacts the March cam 248B of the month indicator 240, and the date indicator engaging portion 234 of the date feeding adjustment lever 230 is in contact with the date indicator 220. It arrange | positions in the position which can contact the inner wall part 221. FIG. The month feeding regulation lever pin 254 of the month feeding regulation lever 250 is disposed at a position corresponding to the 31st day detection cam 228 of the date indicator 220, and the month feeding regulation lever 250 is disposed at a position radially outward of the main plate 102. . The month feeding claw pin 219 of the month feeding claw 216 is at a position away from the month feeding claw setting portion 253 of the month feeding setting lever 250.

  11 and 24, when the date indicator driving wheel 210 is rotated by the rotation of the hour wheel 180, the date feeding claw 212 and the month feeding claw 216 are also rotated at the same time. When the date feeding claw 212 rotates, the date feeding claw pin 215 of the date feeding claw 212 comes into contact with the date feeding claw setting portion 233 of the date feeding setting lever 230, and the date feeding portion 213 of the date feeding claw 212 is moved to the date driving wheel. It moves in the direction opposite to the direction toward the center of rotation 210. When the month feeding claw 216 rotates, the month feeding claw pin 219 of the month feeding claw 216 contacts the month feeding claw setting portion 253 of the month feeding setting lever 250, and the month feeding setting lever 250 is in the radial direction of the main plate 102. Move inward. That is, when “31st” is detected based on the rotation of the date indicator 220, the month feeding adjustment lever 250 moves in a direction toward the inside in the radial direction of the main plate 102.

  Referring to FIG. 12, when the date indicator driving wheel 210 further rotates, the date feeding finger 212 further rotates, and the date feeding portion 213 of the date feeding finger 212 is attached to one tooth of the date indicator tooth portion 226 of the date indicator 220. Contact. On the other hand, the month feeding regulation lever 250 further moves inward in the radial direction of the main plate 102, and the month feeding regulation lever pin 254 of the month feeding regulation lever 250 comes into contact with the 31st date detection cam 228 of the date indicator 220. In this state, the month feeding portion 217 of the month feeding claw 216 rotates so as to contact one tooth of the month star wheel tooth portion 246 of the month star wheel 247.

  Referring to FIG. 13, when the date indicator driving wheel 210 further rotates, the date feeding finger 212 further rotates, and the date indicator tooth portion 226 of the date indicator 220 can be fed counterclockwise by only one tooth. On the other hand, the month feeding portion 217 of the month feeding claw 216 can feed the moon star wheel tooth portion 246 of the moon star wheel 247 in the clockwise direction by one tooth.

  Referring to FIG. 14, the date feeding claw 212 finishes feeding the date indicator tooth portion 226 of the date indicator 220 by one tooth in the counterclockwise direction, and the date display changes to “1 day”. The month feeding portion 217 of the month feeding finger 216 finishes feeding the month star wheel tooth portion 246 of the month star wheel 247 by one tooth in the clockwise direction, and the month display changes to “APR”. The date feeding and month feeding operations can be configured to take place between 8 pm and 12 pm, for example. The operation at the end of the “large month” other than “March” is the same as the operation at the end of “March”.

(6 ・ 2 ・ 5) In “Small moon”, change from “30 days” to “1 day” of the next month:
Referring to FIGS. 2 to 4, 15, and 24, in a state where “30 days” of “small month” is displayed, the display of the month is “APR” corresponding to “April”. In this state, the month cam engagement portion 232 of the date feeding adjustment lever 230 is disposed at a position corresponding to the April cam 249B of the month indicator 240, and the date indicator engagement portion 234 of the date feeding adjustment lever 230 is The date indicator 220 is disposed at a position corresponding to the concave portion of the 30-day detection cam 227. The month feeding regulation lever pin 254 of the month feeding regulation lever 250 is disposed so as to be in contact with the month feeding regulation cam 229 of the date indicator 220, and the month feeding regulation lever 250 is disposed at a position radially outward of the main plate 102. The The month feeding claw pin 219 of the month feeding claw 216 is at a position away from the month feeding claw setting portion 253 of the month feeding setting lever 250.

  16 and 24, when the date indicator driving wheel 210 is rotated by the rotation of the hour wheel 180, the date feeding claw 212 and the month feeding claw 216 are also rotated at the same time. The month cam engagement portion 232 of the date feeding adjustment lever 230 can enter the recess of the April cam 249B of the month indicator 240. When the date feeding claw 212 rotates, the date feeding claw pin 215 of the date feeding claw 212 comes into contact with the date feeding claw setting portion 233 of the date feeding setting lever 230 and the date wheel engaging portion 234 of the date feeding setting lever 230 is touched. Can enter the recess of the 30-day detection cam 227 of the date dial 220. Therefore, in this state, the month cam engagement portion 232 can enter the recess of the April cam 249B, and the date indicator engagement portion 234 can enter the recess of the 30-day detection cam 227. The setting lever 230 can rotate in the clockwise direction. That is, when the “small month” is detected based on the rotation of the date indicator 220 and the month indicator 240 and simultaneously “30 days” is detected, the date feeding adjustment lever 230 can rotate in the clockwise direction. . When the month feeding claw 216 rotates, the month feeding claw pin 219 of the month feeding claw 216 contacts the month feeding claw setting portion 253 of the month feeding setting lever 250, and the month feeding portion 217 of the month feeding claw 216 It moves in a direction toward the rotation center of the rotating wheel 210.

  Referring to FIG. 17, when the date indicator driving wheel 210 further rotates, the date feeding finger 212 further rotates, and the date feeding portion 213 of the date feeding finger 212 has a first tooth of the date indicator tooth portion 226 of the date indicator 220. To touch. On the other hand, the month feeding portion 217 of the month feeding claw 216 rotates so as not to contact the moon star wheel tooth portion 246 of the moon star wheel 247. Further, when the month feeding claw 216 rotates, the month feeding claw pin 219 of the month feeding claw 216 comes into contact with the month feeding claw setting portion 253 of the month feeding setting lever 250.

  Referring to FIG. 18, when the date indicator driving wheel 210 further rotates, the date feeding finger 212 further rotates to finish feeding one tooth of the date indicator tooth portion 226 of the date indicator 220 in the counterclockwise direction. Changes to "31st". In this state, the month feeding regulation lever pin 254 of the month feeding regulation lever 250 is disposed at a position corresponding to the 31st date detection cam 228 of the date dial 220. When the month feeding claw 216 rotates, the month feeding claw pin 219 of the month feeding claw 216 contacts the month feeding claw setting portion 253 of the month feeding setting lever 250, and the month feeding setting lever 250 is in the radial direction of the main plate 102. Move inward.

  Referring to FIG. 19, the date feeding finger 212 comes into contact with the one tooth of the date indicator tooth portion 226 of the date dial 220 again in the counterclockwise direction. In this state, the month feeding portion 217 of the month feeding claw 216 rotates so as to contact one tooth of the month star wheel tooth portion 246 of the month star wheel 247.

  Referring to FIG. 20, when the date indicator driving wheel 210 further rotates, the date feeding finger 212 further rotates, and the one tooth of the date indicator tooth portion 226 of the date indicator 220 can be fed in the counterclockwise direction. On the other hand, the month feeding portion 217 of the month feeding claw 216 can feed the moon star wheel tooth portion 246 of the moon star wheel 247 in the clockwise direction by one tooth.

  Referring to FIG. 21, the date feeding claw 212 finishes feeding the one tooth of the date indicator tooth portion 226 of the date indicator 220 in the counterclockwise direction, and the date display changes to “1 day”. The month feeding portion 217 of the month feeding finger 216 finishes feeding the month star wheel tooth portion 246 of the month star wheel 247 by one tooth in the clockwise direction, and the month display changes to “MAY”. The operation at the end of “small month” other than “April” is the same as the operation at the end of “April”. Since the operation at the end of “February” is the same as the operation at the end of “April”, it is necessary to correct the date at the end of “February” using the calendar correction mechanism described above. .

(7) Configuration of mechanical watch:
Although the configuration in which the timepiece with calendar mechanism of the present invention is applied to an analog electronic timepiece has been described above, the present invention can also be applied to a mechanical timepiece. When the present invention is constituted by a mechanical timepiece, the structure and operation of the switching mechanism, calendar feed mechanism, and calendar correction mechanism are the same as those of the above-described embodiment of the present invention. Although details of the structure are not shown, in the mechanical timepiece, the fourth wheel rotates once per minute through the rotation of the second and third wheels by the rotation of the barrel wheel of the barrel. The rotation speed of the fourth wheel is controlled by the escape wheel. The rotation speed of the escape wheel is controlled by an ankle. The swing motion of the ankle is controlled by the balance with the balance. As the third wheel rotates, the minute wheel rotates once per hour. With the rotation of the minute wheel, the hour wheel is configured to rotate once every 12 hours through the rotation of the minute wheel. As the hour wheel rotates, the date driving wheel rotates.

  That is, on the back side of the movement of the mechanical timepiece, the date driving mechanism and the month feeding mechanism can be operated by rotating the hour wheel by rotating the hour wheel. In the configuration of the mechanical timepiece, it is preferable that the date indicator driving wheel and the month feeding adjustment lever are arranged so as not to overlap with the barrel complete. With this configuration, a mechanical timepiece with a calendar mechanism having a thin movement can be manufactured.

  According to the present invention, it is possible to manufacture a timepiece with a calendar mechanism in which the date feeding mechanism and the month feeding mechanism are thinly configured and the movement is thin. Further, according to the present invention, it is possible to manufacture a timepiece with a calendar mechanism in which operations of the date feeding mechanism and the month feeding mechanism are stable.

In embodiment of the timepiece with a calendar mechanism of this invention, it is a schematic plan view which shows a structure when a movement is seen from the dial side. In embodiment of the timepiece with a calendar mechanism of this invention, it is a fragmentary sectional view which shows an hour wheel, a date feeding mechanism, and a month feeding mechanism. In embodiment of the timepiece with a calendar mechanism of this invention, it is a fragmentary sectional view which shows an hour wheel, a date feeding mechanism, a month feeding mechanism, and a month correction wheel. In embodiment of the timepiece with a calendar mechanism of this invention, it is a fragmentary sectional view which shows the part of an hour wheel from a winding stem. FIG. 6 is a partial plan view (part 1) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from March 30 to March 31 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 6 is a partial plan view (part 2) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from March 30 to March 31 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 6 is a partial plan view (part 3) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from March 30 to March 31 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 14 is a partial plan view (part 4) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from March 30 to March 31 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 14 is a partial plan view (part 5) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from March 30 to March 31 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 6 is a partial plan view (part 1) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from March 31 to April 1 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 6 is a partial plan view (part 2) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from March 31 to April 1 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 6 is a partial plan view (part 3) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from March 31 to April 1 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 6 is a partial plan view (part 4) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from March 31 to April 1 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 10 is a partial plan view (part 5) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from March 31 to April 1 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 5 is a partial plan view (part 1) showing the structure of the date feeding mechanism and the month feeding mechanism in a state where the calendar mechanism-equipped timepiece of the invention changes from April 30 to May 1; FIG. 6 is a partial plan view (part 2) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from April 30 to May 1 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 6 is a partial plan view (part 3) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from April 30 to May 1 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 6 is a partial plan view (part 4) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from April 30 to May 1 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 10 is a partial plan view (part 5) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from April 30 to May 1 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 14 is a partial plan view (part 6) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from April 30 to May 1 in the embodiment of the timepiece with calendar mechanism of the present invention. FIG. 14 is a partial plan view (No. 7) showing the structure of the date feeding mechanism and the month feeding mechanism in a state changing from April 30 to May 1 in the embodiment of the timepiece with calendar mechanism of the present invention. In embodiment of the timepiece with a calendar mechanism of this invention, it is a top view which shows the completion in the state which displays March 30 by the structure which has arrange | positioned the date window in the 3 o'clock direction of the dial. In embodiment of the timepiece with a calendar mechanism of this invention, it is a schematic plan view which shows a structure when a movement is seen from the back cover side. FIG. 3 is a schematic block diagram showing a configuration of a calendar mechanism in the embodiment of the timepiece with calendar mechanism of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Movement 102 Base plate 104 Dial 110 Winding stem 180 Hour wheel 210 Hour wheel 210 Day feeding wheel 212 Day feeding claw 216 Month feeding claw 220 Day wheel 221 Inner side wall part 226 Date wheel tooth part 222 Outer side wall part 227 Date feeding control cam 228 Month feeding Control cam 229 Month feed regulation cam 240 Month car 230 Day feed regulation lever 250 Month feed regulation lever 440 Battery

Claims (3)

In a watch with a calendar mechanism having a month wheel and a date wheel,
A date wheel (220) for displaying the date;
A month wheel (240) for displaying the month;
A date indicator wheel (210) configured to rotate once in 24 hours;
Based on rotation of the date indicator driving wheel (210), configured date feeding claw the date indicator (the 220) so that it can rotate and (212),
Based on rotation of the date indicator driving wheel (210), and the month indicator (240) configured to be able to rotate the been month feeding pawl (216),
Based on rotation of the rotation and the month indicator of the date indicator (220) (240), the date feeding claw (212) is configured to be able to set the operation for rotating the date indicator (220) A date feed control lever (230);
Based on rotation of the date indicator (220), the month feeding pawl (216) is the month indicator configured month feeding setting lever to be able to set the operation of rotating the (240) and (250) Prepared,
The date indicator (220) includes an inner wall portion (221) facing the inside of the movement, an outer wall portion (222) facing the outside of the movement, and a date display surface portion (224) provided with date letters (223). When the date is configured to include date feeding portion of the feed pawl (212) and indicator tooth portion days in contact with the (213) (226),
The date feed setting lever date indicator engagement portion (230) (234) is configured to contact with the inner wall portion of the date indicator (220) (221),
The month feeding regulating lever pin of the month feeding setting lever (250) (254) is configured to contact the outer wall portion (222) of the date indicator (220),
The month feeding adjustment lever (250) is disposed below the date indicator (220) and the date indicator driving wheel (210),
The month feeding adjustment lever (250) is configured to be capable of linear movement along a straight line passing through a rotation center of the date indicator driving wheel (210) and a rotation center of the month indicator (240).
A watch with a calendar mechanism. The date indicator (220) is date feeding control cam for display to detect when it is "30 days" in (227), provided in the inner wall portion of the date indicator (220) (221),
The date indicator (220) month feeding control cam (228) for detecting when the display is "31" in the are provided on the outer wall portion of the date indicator (220) (222),
The timepiece with a calendar mechanism according to claim 1, wherein: The timepiece with calendar mechanism according to claim 1, wherein an inner wall portion (221) of the date dial (220) is disposed below the date display surface portion (224).

Images