JP2011128027A - Calendar timepiece - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a calendar timepiece having easily-visible date display and a novel design. <P>SOLUTION: This calendar timepiece 1 has a tens-digit number hand 6 for date indicating a tens-digit number, a single-digit number hand 7 for date indicating a single-digit number, a date tens-digit number display scale 11 having a region showing four numbers, namely, 0, 1, 2, 3, indicated by the tens-digit number hand 6 for date or a content corresponding to the number, and a date single-digit number display scale 12 having a region showing ten numbers from 0 to 9 indicated by the single-digit number hand 7 for date or a content corresponding to the number, in calendar display of 31 days in one month. By adopting such a constitution, the calendar timepiece having easily-visible date display and a novel design can be obtained. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a calendar clock.

  Since ancient times, there are many watches that can display calendars such as dates and days of the week. In particular, in the case of an analog timepiece that displays time with hands, it is common to display a calendar with letters and numbers in a calendar window opened on a dial. In addition to such general ones, many products that display a calendar using a pointer in order to realize a mechanical design have been commercialized.

  When performing date display with a pointer, there is a method in which 31 days, which is one month, are displayed in a circular scale and the pointer is rotated (for example, see Patent Document 1).

  In addition, there is a so-called retrograde type calendar clock in which 31 days, which is one month, are displayed in a sector shape and the date is indicated by driving the pointer back and forth in a sector shape (see, for example, Patent Document 2). ).

Japanese Patent Laid-Open No. 7-20257 (FIG. 4) Japanese Patent Laid-Open No. 11-6880 (FIG. 1)

  In Patent Document 1 described above, the 31st day, which is one month, is displayed in a circular scale, and in Patent Document 2, the 31st day, which is one month, is displayed in a fan-shaped scale. When the hour hand, minute hand and second hand are arranged in the center of the clock, the scale display area cannot be secured sufficiently, and it is difficult to display all the date scales in numbers. Is the limit.

  In addition, even if the display is circular or fan-shaped, the interval between adjacent dates is small. The problem is that it is difficult to understand the correct date.

  In addition, since many calendar clocks having the configurations of Patent Document 1 and Patent Document 2 described above have been commercialized, they are over-generalized, and a calendar clock with a novel design is required from the market.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  The calendar clock according to one embodiment of the present invention includes a 10-digit date hand for designating a 10-digit number and a 1-digit hand for a date designating a single-digit number among 31-day calendar display for one month. 10-day hand wheel to which the 10-digit hand for date is fixed, 1-day hand wheel to which the 1-digit hand for date is fixed, 1-day feed cam and 10-digit day arranged concentrically The feed cam, the 1-day feed member that rotates the 1-digit hand wheel in conjunction with the rotation of the 1-digit feed cam, and the 10-digit hand wheel in conjunction with the rotation of the 10-digit feed cam And a 10-digit date feeding member.

  According to this embodiment, since the 10-digit number instruction and the 1-digit number instruction are independently displayed with the 10-digit date hand and the 1-digit hand for the date in the date display for one month, Even when the display area of a dial such as a watch is small, it is possible to clearly indicate the 10th and 1st digits of the date.

  48 hours have passed after the date 10-digit hand has been rotated clockwise from the position displaying “0” on the 10-digit date scale by the date 10-digit feed member to the position displaying “3”. Later, it is preferable that the engagement between the projection provided on the 10-digit feed cam and the 10-digit feed member is released and the counterclockwise direction is rotated to return to the position displaying “0”.

  Here, the period in which the 10-digit date hand indicates “0” on the day 10-digit display scale is from the 1st to the 9th of the date, and the period in which “10” is indicated is the 10th to 19th of the date. The period indicating “2” is the 20th to 29th day of the date, and the period indicating “3” is the 30th to 31st day of the date.

  By doing so, the 10-digit date hand indicates the 10-day display scale from “0” to “3” every 10 days, and when the date shifts from the 31st to the 1st, The engagement between the shift member and the protrusion of the 10-day feed cam is released, and “0” on the 10-day display scale can be instantaneously indicated. Further, the 10-digit date hand enables a so-called retrograde display that reciprocates in a substantially fan shape.

  Furthermore, the date 1-digit hand is moved from the “1” display position of the date 1-digit display scale to the “9” display position and further to the “0” display position following “9” by the 1-digit date feed member. After 24 hours have passed since the rotation in the counterclockwise direction, the engagement between the protrusion provided on the 1-day feeding cam and the 1-day feeding member is released, and the clockwise rotation is performed. It is preferable to return to the “1” display position.

  In this way, for example, when the date reaches 0 o'clock on the 11th, when it reaches 0 o'clock on the 21st, and when it reaches 0 o'clock on the 31st, the one-digit hand for the date is 1 day. Quickly return to the display. Therefore, the 1-digit date hand can repeatedly instruct the display of 1-digit numbers “1” to “0” in the 31st day which is one month. Also, the date single digit hand enables a so-called retrograde display that reciprocates in a substantially fan shape.

  A calendar clock according to another embodiment of the present invention includes a 10-digit date hand for designating a 10-digit number and a 1-digit date hand for designating a single-digit number among 31-day calendar display for one month. 10-digit date scale with areas representing the contents corresponding to the four digits 0, 1, 2, 3 or the number indicated by the 10-digit date hand and the 1-digit date hand And a 1-digit date display scale having an area representing contents corresponding to 10 numbers from 0 to 9 or the number.

  According to this embodiment, since a 10-digit number instruction and a 1-digit number instruction are independently displayed with a 10-digit date hand and a 1-digit date hand, respectively, in the date display for one month. Even if the display area of the board is small, it is possible to clearly indicate the 10 digits and 1 digit of the date.

  Further, the date 10-digit display scale and the date 1-digit display scale may be formed in an arc shape and spaced apart from each other.

  With this configuration, it becomes easier to understand the 10th and 1st digits of the date. In addition, a so-called retrograde display is possible in which both the 10-digit date hand and the 1-digit date hand reciprocate in a substantially fan shape.

  Further, it is desirable that the date 10-digit hand wheel and the date 1-digit hand wheel are disposed concentrically and are independently rotatable.

  With such a configuration, the 10-day hand wheel and the 1-digit hand wheel can be arranged in a small space such as a watch. In addition, there is an effect that the 10-digit date hand and the 1-digit date hand can be designed like a normal hour hand and minute hand.

  Further, the date 10-digit hand wheel and the date 1-digit hand wheel may be arranged apart from each other in the plane direction and may be independently rotatable.

  With such a configuration, the date 10 digit hand and the date 1 digit hand are arranged apart from each other in the plane direction, and thus there is an effect that a novel design that has not been possible in the past can be realized.

  In addition, it is desirable that the tip portions for indicating the dates of the 10-digit date hand and the 1-digit date hand are arranged so as not to cross each other.

  In this way, it becomes easier to visually recognize the 10-digit number and the 1-digit number of the date, and it is possible to eliminate misreading.

It is an external appearance top view which shows an example of the calendar clock which concerns on Embodiment 1 of this invention. It is a top view which shows the calendar mechanism which is the inside of the calendar clock shown in FIG. It is a fragmentary sectional view which shows the date display mechanism of the calendar clock shown in FIG. It is a fragmentary sectional view which shows the month display mechanism of the calendar clock shown in FIG. It is a fragmentary sectional view which shows the leap year display mechanism of the calendar clock shown in FIG. It is a fragmentary sectional view which shows the moon age display mechanism of the calendar clock shown in FIG. It is a fragmentary sectional view which shows the day display mechanism of the calendar clock shown in FIG. It is drive explanatory drawing which shows the drive of the date 1-digit hand wheel of the calendar clock shown in FIG. It is drive explanatory drawing which shows the drive of the date 10-digit hand wheel of the calendar clock shown in FIG. FIG. 2 is an explanatory plan view showing phases of a 1-day feeding cam and a 10-day feeding cam of the calendar clock shown in FIG. 1. It is an external appearance top view which shows an example of the calendar clock which concerns on Embodiment 2 of this invention. It is a fragmentary top view which shows the date display mechanism of the calendar clock shown in FIG. It is a fragmentary sectional view which shows the date display mechanism of the calendar clock shown in FIG. It is drive explanatory drawing which shows the drive of the date 1-digit hand wheel of the calendar clock shown in FIG. It is drive explanatory drawing which shows the drive of the date 10-digit hand wheel of the calendar clock shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The calendar clock described in the embodiment is not limited to a form such as a table clock, a wall clock, and a watch, but will be described by exemplifying a watch. The drawings referred to in the following description are schematic views in which the vertical and horizontal scales of members or portions are different from actual ones for convenience of illustration.

(Embodiment 1)
FIG. 1 is an external plan view showing an example of a calendar clock according to the first embodiment. In FIG. 1, a calendar clock 1 is provided with an hour hand 2, a minute hand 3, and a second hand 4 for displaying time in the center. Further, in the 12:00 direction of the timepiece 1, a date 10-digit hand 6 and a date 1-digit hand 7 for displaying the date are arranged. The calendar clock 1 has a day indicator 8 for displaying the day of the week at 6 o'clock, a moon display panel 9 for displaying the age at 3 o'clock, and 12 months at 9 o'clock. Each month indicator hand 5 is disposed. Further, a leap year display unit 10 for displaying leap years or normal years is arranged in the 8 o'clock direction. In the figure, “L” (LEAP YEAR) meaning leap year is illustrated.

  As date display, a date 10-digit display scale 11 for displaying 10 digits of the date and a date 1-digit display scale 12 for displaying 1 digit of the date are provided, and the independent 10-digit hand 6 for date and 1 for date are provided. The date is indicated by the digit hand 7. In the figure, 11 days are displayed. Further, a month display scale 13 is provided as a 12 month display, and a day display scale 14 is provided as a day display.

  As shown in the figure, the date display, day of the week display, and twelve month display are each substantially fan-shaped display scales, and each display hand moves between the initial display position of the fan-shaped display and the final display position. Specify the display scale. That is, in the 12-month display, the month indicator hand 5 rotates and instructs clockwise from January (JAN) to December (DEC), and instantaneously counterclockwise until January display when reaching December. Rotate to return to the January display.

  Also, in the day of the week display, the day indicator hand 8 rotates clockwise from Monday (MON) to Sunday (SUN), and when it reaches Sunday, it instantaneously rotates counterclockwise until Monday display. , The display returns to Monday.

  The date display is displayed by indicating the 10-digit number and the 1-digit number of the 31st day, which is one month, by the independent date 10-digit hand 6 and date 1-digit hand 7, respectively. The 10-digit number indicates “0” to “3” by rotating the date 10-digit hand 6 clockwise, and the 1-digit number indicates “1” to “0”. 7 turns to counterclockwise and indicates.

  The relationship between the date 10 digit hand 6 and the date 1 digit hand 7 will be described in more detail. When the date is between 1st and 9th, the date 10-digit hand 6 indicates “0”, and when the date is 10th, the date 1-digit hand 7 indicates “0” (carrying display) Position), the date 10-digit hand 6 indicates "1". When the 11th day is reached, the date one-digit hand 7 indicates “1”.

  Furthermore, when the date is the 20th, the date one-digit hand 7 indicates “0” (that is, the carry-up display position), and the date ten-digit hand 6 indicates “2”. When the 21st day is reached, the date one-digit hand 7 indicates “1”. When the date is 30 days, the date one-digit hand 7 indicates “0” (that is, the advanced display position), and the date ten-digit hand 6 indicates “3”. When the 31st day is reached, the date single digit hand 7 indicates “1”.

  When the first day of the next month starts on the 31st, the date one-digit hand 7 indicates “0” while the date ten-digit hand 6 indicates “0”. That is, the date 10-digit hand rotates to display “0” after 24 hours have passed since the 31st. In this way, the date can be designated with a 10-digit number and a 1-digit number independently by interlocking with the date 10-digit hand 6 and the date 1-digit hand 7.

  Next, the configuration of the calendar clock 1 according to the first embodiment will be described with reference to the drawings. 2 is a plan view showing a calendar mechanism of the calendar clock 1 according to the first embodiment, FIG. 3 is a date display mechanism, FIG. 4 is a month display mechanism, FIG. 5 is a leap year display mechanism, and FIG. 6 is a moon age display mechanism. FIG. 7 is a partial cross-sectional view showing each day display mechanism. First, the date display mechanism will be described with reference to FIGS.

  The calendar clock 1 according to the first embodiment is configured by placing a calendar mechanism above the basic movement 30 (in the direction of the dial 37) as shown in each cross-sectional view. The basic movement 30 includes a mainspring as a power source, an escapement, a speed control mechanism, a speed increasing mechanism, a speed reducing mechanism, and a time display mechanism. Since each of these mechanisms employs a well-known configuration in a conventional mechanical timepiece, description thereof is omitted. In addition to the mechanical timepiece, a quartz type analog timepiece can be adopted as the basic movement 30.

  As shown in FIG. 3, in the center of the calendar clock 1, there are a second hand wheel 31, a minute hand wheel 32 and an hour wheel 33 that are driven to display the time. It is mounted so that it can be inserted repeatedly. The second hand 4 is attached to the second hand wheel 31, the minute hand 3 is attached to the minute hand wheel 32, and the hour hand 2 is attached to the hour wheel 33. Since these structures and operations are well known, detailed description thereof is omitted.

  The basic movement 30 and the calendar mechanism are connected to each other by a machine frame (not shown) of the basic movement 30 and a first machine frame 34 of the calendar mechanism. A shaft member 35 that passes through the tubular portion of the hour wheel 33 described above is fixed to the central portion of the first machine casing 34. The shaft member 35 is provided to restrict the distance between the first machine casing 34 and the second machine casing 36 in the central portion of the watch. A calendar feeding wheel 40 is attached to the shaft member 35 so as to be rotatable about the shaft member 35.

  First, the date display mechanism will be described with reference to FIGS. The date display mechanism of the first embodiment includes a 10-digit date hand 6 for designating a 10-digit number, a 1-digit hand for date 7 for designating a 1-digit number, and a date in the calendar display for 31 days in a month. 10-day hand wheel 90 for fixing the 10-digit hand 6 at its shaft portion, 1-day hand wheel 80 for fixing the 1-digit hand for date 7 at its shaft portion, A calendar feed wheel 40 having a 10-day feed cam 41 and a cam feed gear 105 that transmits rotation to these cams 51, 41, and a 1-digit hand wheel 80 in conjunction with the rotation of the day 1-digit feed cam 51. 10-day feed as a 10-day feed member that rotates the 10-day hand wheel 90 in conjunction with the rotation of the 1-day feed lever 60 and the 10-day feed cam 41 as a moving day 1-digit feed member And a lever 70.

  The calendar feed wheel 40 is composed of a day 1 digit feed cam 51, a day 10 digit feed cam 41, and a cam feed gear 105. In the 10-day feed cam 41, a positioning shaft 42 provided so as to protrude downward in FIG. 3 of the 10-day feed cam 41 is inserted into a hole (a recess or a through hole) provided in the 1-day feed cam 51. By doing so, it rotates together with the one-digit feed cam 51 per day.

  Further, the one-digit feed cam 51 is placed on the upper surface of the cam feed gear 105 supported by a shaft portion 34a provided so as to protrude upward in FIG. Further, by inserting a positioning shaft 52 provided so as to protrude downward in FIG. 3 of the day 1 digit feeding cam 51 into the through hole provided in the cam feeding gear 105, the day 1 digit feeding cam 51 is It rotates integrally with the feed gear 105.

  Therefore, the 10-day feed cam 41, the 1-day feed cam 51, and the cam feed gear 105 are configured to rotate integrally and to rotate once in 31 days by the rotational force transmitted from the basic movement 30.

  A cam contact portion 63 provided so as to protrude from a day 1 digit feeding lever 60 as a day 1 digit feeding member is pressed on the outer peripheral surface of the day 1 digit feeding cam 51. As shown in FIG. 2, the 1-digit feed lever 60 includes a gear portion 61 that meshes with the 1-digit hand wheel 80, a cam contact portion 63 that contacts the 1-digit feed cam 51, and a cam contact portion 63. And a spring portion 62 that presses against the cam outer peripheral surface of the one-digit feed cam 51.

  The 1-digit feed lever 60 can be rotated clockwise and counterclockwise about a fixed shaft 64 fixedly installed on the first machine casing 34, and is always provided by the spring portion 62. It is pressed toward. The date 1-digit feed lever 60 is swung in accordance with the unevenness of the cam outer peripheral surface of the date 1-digit feed cam 51, and the gear portion 61 rotates the date 1-digit hand wheel 80 (date 1-digit hand 7) clockwise. Or rotate counterclockwise. The modules and tooth profile of the gear unit 61 and the date one-digit hand wheel 80 are the same. The operations of the day 1-digit feed cam 51, the day 1-digit feed lever 60, and the day 1-digit hand wheel 80 will be described with reference to FIG.

  The 10-digit feed lever 70 can be rotated clockwise and counterclockwise about a fixed shaft 74 fixedly installed on the first machine casing 34, and is always 10-day feed cam 41 by the spring portion 72. It is pressed toward. The 10-day feed lever 70 is swung in accordance with the irregularities on the outer peripheral surface of the 10-day feed cam 41, and the gear portion 71 rotates the 10-day hand wheel 90 (date 10-digit hand 6) clockwise. Or rotate counterclockwise. The modules and tooth profile shapes of the gear portion 71 and the date 10-digit hand wheel 90 are the same. The operations of the day 10-digit feed cam 41, the day 10-digit feed lever 70, and the day 1-digit hand wheel 80 will be described with reference to FIG.

  Next, the month display mechanism will be described with reference to FIGS. The month display mechanism includes a month feeding claw wheel 100 fixed to the calendar feeding wheel 40, a month cam wheel 110 rotated by the month feeding claw wheel 100, a month feeding lever 120, a month display hand wheel 130, ,have. The month feeding claw wheel 100 rotates integrally with the calendar feeding wheel 40 and rotates once in 31 days. And the nail | claw part provided in the outer peripheral part of the month feeding claw wheel 100 engages with the month gear part 112 of the month cam wheel 110, and thereby the month cam wheel 110 is rotated once in 12 months.

  The month cam wheel 110 includes a rotatable support shaft 114, a month cam 111 having a shaft portion fixed to the support shaft 114, a month gear portion 112, and a leap year display feed cam 113 (see FIG. 4). As shown in FIG. 2, the month cam 111 is a cam whose outer periphery is formed in a spiral shape, and the month feeding lever 120 is always pressed against the outer peripheral surface.

  The month feeding lever 120 includes a gear portion 121 that meshes with the month indicator hand wheel 130, a cam contact portion 123 that contacts the month cam 111, and a spring portion 122 that presses the cam contact portion 123 against the outer peripheral side surface of the month cam 111. ,have. The month feeding lever 120 can be rotated clockwise or counterclockwise about the fixed shaft 124 as a rotation center. The modules and tooth profiles of the month indicator hand wheel 130 and the gear 121 of the month feeding lever 120 are the same.

  The month cam wheel 110 is rotated clockwise in FIG. Therefore, the month feeding lever 120 rotates counterclockwise in FIG. 2 following the spiral shape of the outer peripheral surface of the month cam 111. The month gear portion 112 has 12 tooth shapes, and when the month feeding claw wheel 100 rotates once in 31 days, the month gear portion 112 is rotated by one tooth of the month gear portion 112. That is, one month is sent.

  The state shown in FIG. 2 is a state in which the month indicator hand 5 indicates January (JAN), and the month feed is sequentially performed according to the rotation of the month cam 111. That is, the cam contact portion 123 of the month feeding lever 120 is pushed by the outer peripheral side surface of the month cam 111 and rotates counterclockwise about the fixed shaft 124. For this reason, the gear part 121 of the month feeding lever 120 also rotates counterclockwise in FIG. Note that a month feeding jumper (not shown) is engaged with the month gear portion 112, and the month gear portion 112 is fed with a moderation feeling (click feeling) every month.

  Then, after the month display hand 5 indicates the final display position of December (DEC), at the moment when the protruding end 111a of the month cam 111 exceeds the cam contact portion 123 of the month feeding lever 120, the protruding end 111a and the cam The engagement with the contact portion 123 is released, and the contact portion 123 falls from the protruding end portion 111a and returns to the original state (the state of FIG. 2). That is, the month feeding lever 120 rotates clockwise and returns to the initial display position shown in FIG. At the time of this return, the month indicator wheel 130 rotates counterclockwise, and the month indicator hand 5 returns to the position indicating January.

  One month includes the 31st month and the 30th month, and once every 4 years there is a leap year of 29 days. In the first embodiment, since one month is based on the month of 31st, when one month is 29th, when 30th, the month correcting member 22 is operated to display an appropriate month. it can.

  Next, the leap year display mechanism will be described with reference to FIGS. The leap year display mechanism includes a leap year display wheel feed cam 113 formed on the month cam wheel 110 and a leap year feed wheel 140.

  The leap year feed wheel 140 includes a leap year feed gear 142 having a shaft portion fixed to a rotatable support shaft 143 and a leap year display plate 141, and is disposed between the first machine casing 34 and the second machine casing 36. It is pivotally supported. On the surface of the leap year display board 141, a leap year (L: LEAP YEAR display) and a symbol indicating a normal year other than the leap year (for example, C: COMMON YEAR) are displayed and pass through the second machine casing 36 and the dial 37. Visible from the window.

  Since the month cam wheel 110 rotates once in 12 months (that is, one year), the leap year display wheel feed cam 113 also rotates once in 12 months. Then, the leap year display wheel feed cam 113 rotates the leap year feed wheel 140 by 1/4 in 12 months counterclockwise in FIG. That is, “L” is displayed only once every four years.

  The selection of whether or not the year is a leap year is performed by operating the month display correction member 22 and rotating the month cam wheel 110 and the leap year feed wheel 140 and counting the year from the leap year. Once set, there is no need to perform a selection operation as long as the watch continues to drive. A leap year feed gear 142 is engaged with a leap year feed gear 142, and the leap year feed gear 142 is sent with a sense of moderation every year.

  Next, the age display mechanism will be described with reference to FIGS. The moon age display mechanism includes a day-month feeding wheel 150, a month feeding wheel 160, and a moon age display wheel 170.

  As shown in FIG. 6, the day-month feed wheel 150 includes a rotation support shaft 152, a month-age wheel feed claw wheel 153 fixed to the rotation support shaft 152, and a day-month age feed gear 154. ing. The shaft part of the day-month feeding carriage 150 is supported by a support shaft 151 fixedly installed on the first machine casing 34, and movement in the cross-sectional thickness direction is restricted by the second machine casing 36. The day-month feeding gear 154 meshes with the intermediate gear 146, and the intermediate gear 146 meshes with the calendar feeding gear 38 fixed to the hour wheel 33.

  The moon feeding wheel 160 includes a rotatable support shaft 161 and a moon feeding gear 162 having a shaft portion fixed to the support shaft 161, and includes a first machine casing 34 and a second machine casing 36. It is supported so that it can rotate between them.

  The moon display wheel 170 includes a rotatable support shaft 173, a moon gear 172 whose shaft portion is fixed to the support shaft 173, and a moon display plate 171 attached to the surface of the moon gear 172 on the dial 37 side. And is rotatably supported between the back presser plate 180 and the second machine casing 36. A well-known month mark (see FIG. 1) is drawn on the moon age display board 171.

  The month display wheel 170 is rotated by transmitting the rotation of the calendar feeding gear 38 via the intermediate gear 146, the day-month feeding wheel 150 and the month feeding wheel 160. The month feeding wheel 160 is rotated by a month wheel feeding claw wheel 153 that rotates integrally with the day-month feeding wheel 150. Here, when the age display wheel 170 is rotated once in 29.5 days, a reduction ratio of 2 / 29.5 is provided between the calendar feed gear 38 (1 rotation in 12 hours) and the age display wheel 170. Designed to be

  The correction of the moon age display is performed by operating the moon age correcting member 21 (see FIG. 1). However, the structure and operation of the moon age correcting mechanism can be well-known, and the description thereof is omitted.

  Next, the day of the week display mechanism will be described with reference to FIGS. The day of the week display mechanism is located between the above-described day-month feeding wheel 150, the day star wheel 190 rotated by the day-month feeding wheel 150, the day indicator hand wheel 210, and the day star wheel 190 and the day indicator hand wheel 210. And a day feeding lever 200 for transmitting the rotation of the day star wheel 190 to the day indicator hand wheel 210.

  The day star wheel 190 includes a day feeding cam 191 and a day feeding gear 193, which are integrally formed, and are supported by a support shaft 192 fixedly installed on the first machine casing 34. The rotation of the day-month feeding carriage 150 described above is transmitted to the day feeding gear 193, and the day feeding cam 191 is rotated counterclockwise in FIG.

  The outer periphery of the day feeding cam 191 has a spiral shape and rotates once in 7 days. The state shown in FIG. 2 is an initial state of day feeding, and in the first embodiment, the day indicator hand 8 displays Monday (MON).

  As shown in FIG. 2, the day feeding lever 200 includes a gear portion 201 that meshes with the day indicator hand wheel 210, a cam abutting portion 203 that abuts on the day feeding cam 191, and a cam abutting portion 203. And a spring portion 202 that presses against the outer peripheral surface of the shaft, and can swing counterclockwise and clockwise about the rotation shaft 204 as a rotation center. The module and tooth profile of the gear portion 211 of the day indicator hand wheel 210 and the gear portion 201 of the day feeding lever 200 are the same.

  The day indicator hand wheel 210 includes a shaft portion 212 and a gear portion 211 that are integrally formed, and is rotatably supported by the first machine casing 34 and the second machine casing 36. The day indicator hand 8 is attached to the tip of the shaft portion 212.

  When the day feeding cam 191 rotates counterclockwise in FIG. 2, the day feeding lever 200 is rotated counterclockwise following the outer peripheral surface of the day feeding cam 191 around the rotation shaft 204 as a rotation center. Rotates the day indicator hand wheel 210 clockwise in FIG. In this way, the day indicator hand wheel 210 (the day indicator hand 8) is sent from Monday to Sunday (SUN) for one tooth per day (that is, only for one day). Here, after 24 hours have elapsed from the moment when the day indicator hand 8 displays Sunday (a state where the projecting end portion 191a of the day feeding cam 191 and the cam contact portion 203 of the day feeding lever 200 are engaged), the day feeding cam 191 is passed. The engagement between the protruding end portion 191a and the cam contact portion 203 of the day feeding lever 200 is released. Then, the day feeding lever 200 is rotated clockwise in FIG. 2 by the elastic force of the spring portion 202 and instantaneously returns to the initial Monday position.

  Further, a day jumper 205 that engages with the day feeding gear 193 is provided, and the day star wheel 190 is rotated with a moderation feeling (so-called click feeling).

  In the first embodiment, the initial display position is Monday and one week is from Monday to Sunday, but one week may be displayed from Sunday to Monday, or from Saturday to Friday.

  Further, when correcting the day of the week, the crown 20 (see FIG. 1) is pulled out and rotated by one stage. However, since this day of the week correction mechanism can adopt a known structure, the description thereof is omitted.

  Next, driving of the day 1-digit hand wheel 80 (date 1-digit hand 7) in the first embodiment will be described with reference to the drawings. FIG. 8 is a drive explanatory view showing the drive of the day 1-digit hand wheel 80 according to the first embodiment. The calendar feeding claw 39 whose shaft portion is fixed to the day-month feeding wheel 150 is engaged with the cam feeding gear 105, and the calendar feeding wheel 40 is rotated counterclockwise in FIGS. In conjunction with the calendar feed wheel 40, the date one-digit feed cam 51 rotates counterclockwise. The movement of the basic movement 30 is transmitted in the order of the calendar feeding gear 38 fixed to the hour wheel 33, the intermediate gear 146, and the day-month feeding carriage 150, and the calendar feeding claw 39 fixed to the day-month feeding carriage 150. Thus, the calendar feeding wheel 40 is driven.

  The 1-day feed cam 51 has a cam surface formed on the outer peripheral surface thereof, and is installed so that the first protrusion 53, the second protrusion 54, and the third protrusion 55 protrude outward. Has been. The state shown in FIG. 8 is an initial display position, which corresponds to a position where the date one-digit hand 7 indicates “1” on the date one-digit display scale 12 (see FIG. 1). At this time, the cam contact portion 63 of the 1-digit feed lever 60 is in contact with the cam surface that is closest to the cam rotation center P1.

  When the 1-day feed cam 51 rotates counterclockwise (r1 direction in the figure), the 1-day feed lever 60 rotates clockwise about the fixed shaft 64 (r2 direction in the figure) as the center of the 1-digit feed cam 51. It is rotated until it reaches one protrusion 53. Then, the 1-day hand wheel 80 that meshes with the gear portion 61 of the 1-day feed lever 60 is rotated counterclockwise (r3 direction in the drawing). When the first protrusion 53 reaches the position of the cam contact portion 63, the date one-digit hand 7 indicates 0 as the final display position of the date one-digit display scale 12.

  Further, when the one-digit feed cam 51 rotates for 24 hours, the engagement between the cam contact portion 63 and the first protrusion 53 is released. Then, the 1-digit digit feeding lever 60 is instantaneously rotated counterclockwise in FIG. 8 by the elastic force of its own spring portion 62, and the 1-digit hand wheel 80 is rotated clockwise so as to be 1 digit for date. The hand 7 indicates “1” of the date 1-digit display scale 12 (see FIG. 1).

  When the day one-digit feed cam 51 further rotates, the cam contact portion 63 gets over the first protrusion 53 and then the day one-digit handwheel until the cam contact portion 63 reaches the second protrusion 54 as described above. Reference numeral 80 is rotated counterclockwise, and the date one-digit hand 7 sequentially indicates “1” to “0” of the date one-digit display scale 12.

  Further, when the one-digit feeding cam 51 rotates for 24 hours, the engagement between the cam contact portion 63 and the second protrusion 54 is released. Then, the date 1-digit feed lever 60 is instantaneously rotated counterclockwise by the elastic force of its own spring portion 62, the date 1-digit hand wheel 80 is rotated clockwise, and the date 1-digit hand 7 is “1” of the date one-digit display scale 12 is indicated (see FIG. 1).

  When the 1-digit feed cam further rotates, the cam contact portion 63 gets over the second projection portion 54 and then the day 1-digit handwheel until the cam contact portion 63 reaches the third projection portion 55 as described above. Reference numeral 80 is rotated counterclockwise, and the date one-digit hand 7 sequentially indicates “1” to “0” of the date one-digit display scale 12.

  Furthermore, when the one-digit feed cam 51 rotates for 24 hours, the engagement between the cam contact portion 63 and the third projection portion 55 is released. Then, the date 1-digit feeding lever 60 is instantaneously rotated counterclockwise by the elastic force of its own spring portion 62, and the date 1-digit hand wheel 80 is rotated clockwise so that the date 1-digit hand 7 Indicates “1” of the date one-digit display scale 12 (see FIG. 1).

  For 48 hours after the third protrusion 55 and the cam contact portion 63 are released, the day 1 digit cam 51 maintains the position of the day 1 digit feed lever 60. This is because the date 1 digit display scale 12 is set to “1” in the date 1 digit display in order to indicate the 31st and 01st days with the date 10 digit hand 6 and the date 1 digit hand 7 which will be described later. This is because it is necessary to instruct twice.

  Incidentally, the one-digit feed cam 51 is rotated by one tooth of the cam feed gear 105 every 24 hours by the calendar feed claw 39. Since the cam feed gear 105 has 31 teeth, the one-digit feed cam 51 is rotated by “360 ÷ 31” degrees in 24 hours (one day). That is, it is rotated by one day.

  Further, a calendar feed jumper 106 is elastically engaged with the cam feed gear 105, and the position of the cam feed gear 105 is regulated with a moderation feeling (so-called click feeling) for each tooth. Thus, the date single digit hand 7 can indicate the approximate center of each number on the date single digit display scale 12.

  Next, driving of the day 10-digit hands wheel 90 (date 10-digit hands 6) in the first embodiment will be described with reference to the drawings. FIG. 9 is a driving explanatory view showing driving of the day 10-digit hand wheel 90 according to the first embodiment. The 10-digit feed cam 41 rotates in the counterclockwise direction in FIGS. 2 and 9 in conjunction with the calendar feed wheel 40 (in the direction indicated by the arrow r1 in FIG. 9).

  The 10-day feed cam 41 has a cam surface formed on the outer periphery, and the first protrusion 43, the second protrusion 44, and the third protrusion 45 are disposed so as to protrude outward. . The state shown in the figure is an initial display position, and corresponds to a position where the date 10-digit hand 6 indicates “0” on the date 10-digit display scale 11. At this time, the cam contact portion 73 of the 10-day feed lever 70 is in contact with the cam surface that is closest to the cam rotation center P1.

  When the date 10 digit feeding cam 41 is rotated counterclockwise in FIG. 2 and FIG. 9 (r1 direction in the drawing), the date 10 digit feeding lever 70 is rotated counterclockwise (r3 direction in the drawing) about the fixed shaft 74 as a rotation center. The 10-day feed cam 41 is rotated until it reaches the first protrusion 43. Then, the date 10-digit hand wheel 90 meshing with the gear portion 71 of the date 10-digit feed lever 70 is rotated clockwise (r4 direction in the drawing). When the first protrusion 43 reaches the position of the cam contact portion 73, the date 10-digit hand 6 indicates "1" (that is, 10 days) of the date 10-digit display scale 11. The 10-digit feed lever 70 does not operate until just before the cam contact portion 73 rides on the first protrusion 43. This is because the distance from the cam rotation center P1 to the cam contact portion 73 is constant.

  The day 10 digit feeding lever 70 does not operate until the day 10 digit feeding cam 41 further rotates until the cam contact portion 73 rides on the second protrusion 44. This is because the distance from the cam rotation center P1 to the cam contact portion 73 is constant. When the cam contact portion 73 rides on the second protrusion 44, the date 10-digit hand 6 indicates “2” (that is, 20th) of the date 10-digit display scale 11.

  The 10-day feed lever 70 does not operate until the 10-day feed cam 41 further rotates and immediately before the cam contact portion 73 rides on the third protrusion 45. This is because the distance from the cam rotation center P1 to the cam contact portion 73 is constant. When the cam contact portion 73 rides on the third protrusion 45, the date 10-digit hand 6 indicates “3” (that is, 30 days) of the date 10-digit display scale 11.

  Further, when the 10-day feed cam 41 rotates for 24 hours, the engagement between the cam contact portion 73 and the third protrusion 45 is released. Then, the date 10-digit feeding lever 70 is instantaneously rotated clockwise in FIG. 9 by the elastic force of its own spring portion 72, and the date 10-digit hand wheel 90 is rotated counterclockwise to be the date 10-digit. The hand 6 indicates “0” of the date 10-digit display scale 11 (that is, the state where the date is 1 digit).

  The calendar feed jumper 106 is elastically engaged with the cam feed gear 105, and the position of the cam feed gear 105 is regulated with a sense of moderation (so-called click feeling) by one tooth. As a result, the 10-digit date hand 6 can indicate the approximate center of each number on the 10-digit date display scale 11.

  The 10-digit date display mechanism and the 1-digit date display mechanism described above are the daily feed timing of the 1-day hand 7 for the date in accordance with the operation of the 1-digit feed lever 60 by the 1-digit feed cam 51, It is necessary to match the date feed timing of the 10-day unit of the date 10-digit hand 6 with the operation of the day 10-digit feed lever 70 by the day 10-digit feed cam 41. The timing can be appropriately set by accurately matching the phases of the 1-day feed cam 51 and the 10-day feed cam 41.

  FIG. 10 is an explanatory plan view showing phases of the 1-day feed cam 51 and the 10-day feed cam 41. In FIG. 10, only the main part of the calendar feeding wheel 40 is shown, and the correlation between the 10-day feeding cam 41 and the 1-day feeding cam 51 is shown corresponding to the rotation angle of the calendar feeding wheel 40.

  Note that the cam contact portion 73 of the 10-day feed lever 70 and the cam contact portion 63 of the 1-digit feed lever 60 rotate in opposite directions with arcuate rotation trajectories K70 and K60, respectively. Although it abuts on the outer peripheral surface of the 10-day feed cam 41 and the 1-day feed cam 51, it is simplified for easy understanding. The calendar feeding wheel 40 rotates counterclockwise (in the drawing, r1 direction). The rotation angle of the 1-day feed cam 51 is represented by a symbol D, and the rotation angle of the 10-day feed cam 41 is represented by a symbol d.

  In the state illustrated in FIG. 10, the date in the initial display state represents “01” day. That is, the crossing position of the 1-day feed cam 51 and the rotation locus K60 is in the range of the rotation angle D2 of the 1-day feed cam 51. That is, it is in the vicinity of the state shown in FIG. The crossing position of the 10-day feed cam 41 and the rotation locus K70 is within the range of the rotation angle d3 of the 10-day feed cam 41. That is, it is between the position of the state shown in FIG. 9 and the position of the first protrusion 43.

  In the range of the rotation angle D1, D2 of the date 1-digit cam 51, the date 1-digit hand 7 indicates “1” of the date 1-digit display scale 12, and in the range of the rotation angle d3 of the date 1-digit feed cam 41, The date 10 digit hand 6 indicates “0” of the date 10 digit display scale 11. That is, it represents one day of the date.

  When the calendar feed wheel 40 rotates counterclockwise (in the r1 direction in the figure) from this state, the crossing position of the rotation locus K60 and the day 1-digit cam 51 moves so as to approach the first protrusion 53. In the range of the rotation angle D3, the date one-digit hand 7 instructs from the second day to the ninth day of the date one-digit display scale 12 by one scale every 24 hours.

  The 10-day feed cam 41 rotates in the same manner. However, since the 10-day feed lever 70 does not rotate in the range of the rotation angle d3, the indication of the date 10-digit hand 6 for the date 10-digit display scale 11 is “0”. Remains.

  Therefore, in the range of the rotation angle D3 of the 1-day feed cam 51 and the rotation angle d3 of the 10-day feed cam 41, the 1st to 9th of the date is represented.

  Further, when the calendar feeding wheel 40 rotates and the crossing position of the date 1-digit feed cam 51 and the rotation locus K60 reaches the rotation angle D4, the date 1-digit hand 7 is “0” on the date 1-digit display scale 12. ”And the 10-day hand 6 for date is set to“ 1 ”on the date 10-digit display scale 11 when the crossing position of the 10-day feed cam 41 and the rotation locus K70 reaches the first projection 43. Instruct. Therefore, the date at this time represents 10 days.

  Further, when the calendar feed wheel 40 is rotated, the crossing position of the rotation locus K60 and the day 1-digit cam 51 moves so as to approach the second protrusion 54. In the range of the rotation angle D5, the 1-digit date hand 7 instructs the 1st to 9th of the date 1-digit display scale 12 by 1 scale every 24 hours.

  The 10-day feed cam 41 rotates in the same manner. However, since the 10-day feed lever 70 does not rotate in the range of the rotation angle d4, the indication of the date 10-digit hand 6 for the date 10-digit display scale 11 is “1”. Remains.

  Therefore, in the range of the rotation angle D5 of the 1-digit feed cam 51 and the rotation angle d4 of the 10-digit feed cam 41, the 11th to 19th of the date is represented.

  Further, when the calendar feeding wheel 40 further rotates and the crossing position of the date one-digit feed cam 51 and the rotation locus K60 reaches the rotation angle D6, the date one-digit hand 7 is displayed on the date one-digit display scale 12. “10” is indicated, and the 10-digit date hand 6 keeps “1” on the date 10-digit display scale 11 until the crossing position of the day 10-digit feed cam 41 and the rotation locus K70 reaches the second protrusion 44. When the second projection 44 is reached, “2” of the date 10-digit display scale 11 is instructed. Therefore, the date at this time represents the 20th day.

  Further, when the calendar feed wheel 40 rotates, the intersection position of the rotation locus K60 and the day 1-digit cam 51 moves so as to approach the third projection 55. In the range of the rotation angle D7, the date one-digit hand 7 instructs the 1st to 9th of the date 1-digit display scale 12 by 1 scale every 24 hours.

  The 10-day feed cam 41 rotates in the same manner. However, since the day 10-digit feed lever 70 does not rotate in the range of the rotation angle d5, the indication of the date 10-digit display scale 11 remains “2”. Therefore, in the range of the rotation angle D7 of the 1-digit feed cam 51 and the rotation angle d5 of the 10-digit feed cam 41, the 21st to 29th of the date is represented.

  Further, when the calendar feed wheel 40 further rotates and the crossing position of the day 1 digit feeding cam 51 and the rotation locus K60 reaches the rotation angle D8, the date 1 digit hand 7 is displayed on the date 1 digit display scale 12. 0 ”, and within the range where the crossing position of the day 10-digit feed cam 41 and the rotation locus K70 is at the rotation angle d5, the date 10-digit hand 6 indicates“ 2 ”of the date 10-digit display scale 11 When the rotation angle d1 is reached, “3” on the 10-digit display scale is indicated. Therefore, the date at this time represents 30 days.

  When the calendar feeding wheel 40 further rotates and the third projection 55 of the date one-digit feed cam 51 gets over the rotation locus K60, the date one-digit hand 7 sets “1” of the date one-digit display scale 12 to “1”. The date 10-digit hand 6 indicates “3” on the date 10-digit display scale 11 when the crossing position of the day 10-digit feed cam 41 and the rotation locus K70 is within the range of the rotation locus d2. . Therefore, the date at this time represents the 31st day.

  When the third protrusion 45 of the 10-day feed cam 41 gets over the rotation track K70, the rotation track K70 is within the range of the rotation angle d3 of the 10-day feed cam 41. Indicates “0” of the date 10-digit display scale 11. Therefore, the date at this time represents one day.

  Thus, even if it is the structure which displays the 1 digit hand 7 for a date and the 10 digit hand 6 for a date separately by adjusting the phase of the 1-digit feed cam 51 and the 10-digit feed cam 41, The date from the 1st to the 31st can be represented.

  Therefore, according to the first embodiment described above, in the date display for one month, the 10-digit number instruction and the 1-digit number instruction are independently made by the date 10-digit hand 6 and the date 1-digit hand 7 respectively. Therefore, even when the display area of a dial such as a watch is small, it is possible to clearly indicate a 10-digit number and a 1-digit number.

  Further, after the date 10-digit hand 6 is rotated clockwise from the position where “0” of the date 10-digit display scale 11 is displayed to the position where “3” is displayed by the date 10-digit feed lever 70, After the lapse of 48 hours, the engagement of the day 10 digit feeding lever 70 and the third projection 45 of the day 10 digit feeding cam 41 is released, and the counterclockwise direction is rotated by the elastic force of the spring portion 72 to “0”. Return to the position where is displayed.

  The period in which the date 10-digit hand 6 indicates “0” of the date 10-digit display scale 11 is from the 1st to the 9th of the date, and the period in which “1” is specified is the 10th to 19th of the date. The period indicating “2” is the period from the 20th to the 29th of the date, and the period indicating “3” is the period from the 30th to the 31st of the date.

  In this way, the date 10-digit hand 6 indicates that the date 10-digit display scale 11 “0” to “3” is rotated every 10 days, and the date shifts from the 31st to the 1st. When this is done, the engagement of the 10-day feed lever 70 and the third projection 45 of the 10-day feed cam 41 is released, and the date 10-digit display scale 11 can be momentarily instructed to be “0”. .

  Further, the date one-digit hand 7 is rotated counterclockwise from the “1” display position of the date one-digit display scale 12 to the “0” display position by the date one-digit feed lever 60, and then 24 hours. After the elapse of time, the engagement of the 1-day feeding lever 60 and the first projecting portion 53, the second projecting portion 54, or the third projecting portion 55 of the 1-day feeding cam 51 is released, and instantaneously clockwise. To the display position of “1” on the date one-digit display scale 12.

  In this way, for example, when the date reaches 0 o'clock on the 11th, when it reaches the 0 o'clock on the 21st, or when it reaches the 0 o'clock on the 31st, the date single digit hand 7 is quickly displayed in a state of displaying one day. Return. Therefore, the date single digit hand 7 can repeatedly instruct the display of the single digit numbers “1” to “9” and “0” of the 31st day which is one month. Moreover, the date single digit hand 7 enables so-called retrograde display that reciprocally rotates in a substantially fan shape.

  Further, after the 10-digit date hand 6 is rotated clockwise from the “0” display position of the date 10-digit display scale 11 to the “3” display position by the date 10-digit feed lever 70, 24 hours have elapsed. Later, the engagement of the date 10 digit feeding lever 70 and the third protrusion 45 of the date 10 digit feeding cam 41 is released, and the date 10 digit display scale 11 “0” is instantaneously rotated counterclockwise. To the display position.

  In this way, for example, when the date reaches 0:00 per day, the date 10-digit hand 6 quickly returns to the display of the 0th day. Therefore, the date 10-digit hand 6 can repeatedly instruct the display of the 10-digit number “0” to “3” in the 31st of the month. Further, the date 10-digit hand 6 enables a so-called retrograde display that reciprocates in a substantially fan shape.

  Further, the date 10-digit hand wheel 90 to which the date 10-digit hand 6 is fixed and the date one-digit hand wheel 80 to which the date one-digit hand 7 is fixed are arranged so that the respective rotation axes thereof overlap, that is, The central shaft portion 81 of the day 1-digit hand wheel 80 is disposed so as to penetrate the shaft portion of the day 10-digit hand wheel 90, and each is supported so as to be independently rotatable.

  With such a configuration, the day 10-digit hand wheel 90 and the day 1-digit hand wheel 80 can be arranged in a small space such as a watch. Further, there is an effect that the date 10-digit hand 6 and the date 1-digit hand 7 can be realized by a design like a normal hour hand and minute hand.

  Further, as shown in FIG. 1, the 10-digit date and the 1-digit date are arranged so that the tip portions of the date 10-digit hand 6 and the date-digit hand 7 do not cross each other. It becomes easy to visually distinguish it from numbers. As a result, it is possible to eliminate misreading of dates. Further, as shown in FIG. 1, the misreading of the date can be further prevented by sandwiching the numbers indicated by bifurcating each tip of the date 10 digit hand 6 and the date 1 digit hand 7. Can do.

(Embodiment 2)
Next, a calendar clock 1A according to Embodiment 2 of the present invention will be described with reference to the drawings. In the second embodiment, the day 1-digit hand wheel 80 and the day 10-digit hand wheel 90 of the first embodiment described above are arranged on the same rotation shaft, whereas The center of rotation of the one-digit day wheel is arranged apart from each other in the plane direction, and each is supported so as to be independently rotatable. Therefore, it demonstrates centering on a different location from Embodiment 1. FIG. In the description of the calendar clock 1A according to the second embodiment, the same reference numerals are given to the common parts with the first embodiment, and the description will be omitted or simplified.

  FIG. 11 is an external plan view showing a calendar clock 1A according to the second embodiment. In FIG. 11, a date 10-digit hand 6 and a date 1-digit hand 7 for displaying the date are arranged in the 12 o'clock direction of the watch. A digit display scale 12 is provided. A 10-digit date is indicated by the 10-digit date hand 6 that is driven independently, and a 1-digit date is indicated by the 1-digit date hand 7 that is driven independently of the 10-digit hand 6 for date. The In the figure, the date 10-digit hand 6 indicates “1”, and the date 1-digit hand 7 indicates “6”, both of which represent the 16th day of the date. Note that the month display, leap year display, day of the week display, and moon age display are arranged in the same configuration as in the first embodiment.

  Next, the configuration of the date display mechanism of the second embodiment will be described with reference to the drawings. FIG. 12 is a partial plan view showing the date display mechanism according to the second embodiment, and FIG. 13 is a partial cross-sectional view showing the date display mechanism.

  12 and 13, the date display mechanism of the second embodiment indicates a 10-digit date hand 6 for indicating a 10-digit number and a 1-digit number among 31 calendar days for one month. Date one-digit hand 7, date ten-digit hand 6 is fixed between the shafts of the day 10-digit hand wheel 230, and date one-digit hand 7 is fixed between the shafts of the date one-digit hand For the rotation of the wheel 220, the calendar feed wheel 40 having the 1-day feed cam 51, the 10-day feed cam 41 and the cam feed gear 105 for transmitting the rotation to these cams 51, 41, and the 1-day feed cam 51. The 10-day hand wheel 230 is rotated in conjunction with the rotation of the 1-day feeding lever 60 as a 1-day feeding member that rotates the 1-digit hand wheel 220 in conjunction with the 10-day feeding cam 41. And a day 10 digit feeding lever 70 as a day 10 digit feeding member.

  A calendar feeding wheel 40 is supported by a shaft portion 34a provided in the first machine casing 34 at the center of the calendar clock 1A. The calendar feed wheel 40 is configured such that the shaft part of the day 10 digit cam 41, the day 1 digit cam 51, and the cam feed gear 105 overlap each other. The configuration of the calendar feeding wheel 40 is the same as that of the first embodiment.

  The 1-day hand wheel 220 and the 10-day hand wheel 230 are spaced apart in the plane direction (see FIG. 12). As shown in FIG. 13, the date 1-digit hand wheel 220 is supported at both ends of a shaft portion by a first machine frame 34 and a second machine frame 36, and a date 1-digit hand 7 at the tip of one shaft portion. Are fixed in such a way that their shaft portions fit together. The tooth shape and tooth profile outer diameter of the date single digit hand wheel 220 are the same as those of the day single digit hand wheel 80 of the first embodiment described above.

  The 1-day hand wheel 220 is arranged on a concentric circle (see FIG. 12) of the center distance between the center of the 1-day hand wheel 80 of the first embodiment described above and the fixed shaft 64 of the 1-day hand feeding lever 60. Has been. That is, the distance from the fixed shaft 64 of the 1-digit hand wheel 220 and the distance from the fixed shaft 64 of the 1-digit hand wheel 80 are the same.

  As shown in FIG. 13, the date 10-digit hand wheel 230 is supported at both ends of the shaft portion by the first machine frame 34 and the second machine frame 36, and the date 10-digit hand 6 at the tip of one shaft portion. Are fixed in such a way that their shaft portions fit together. The tooth shape and tooth profile outer diameter of the date 10-digit hand wheel 230 are the same as those of the day 10-digit hand wheel 90 of the first embodiment.

  The date 10-digit hand wheel 230 is arranged on a concentric circle (see FIG. 12) of the center distance between the center of the day 10-digit hand wheel 90 of the first embodiment and the fixed shaft 74 of the day 1-digit feed lever 70 described above. It is installed. That is, the distance from the fixed shaft 74 of the date 10-digit hand wheel 230 and the distance from the fixed shaft 74 of the date 10-digit hand wheel 90 are the same.

  The 1-day feed lever 60 and the 10-day feed lever 70 can be used in common with the first embodiment described above. At this time, the gear portion 61 of the day 1-digit feed lever 60 is formed in a range that can mesh with both the day 1-digit hand wheel 80 and the day 1-digit hand wheel 220, and the gear portion 71 of the day 10-digit feed lever 70. Is also formed in a range that can be engaged with both the 10-day hand wheel 90 and the 10-day hand wheel 230.

  Next, driving of the day 1-digit hand wheel 220 (date 1-digit hand 7) of the second embodiment will be described with reference to the drawings. FIG. 14 is a drive explanatory view showing the drive of the day 1-digit hand wheel 220 according to the second embodiment. The calendar feeding claw 39 supported by the day-month feeding wheel 150 is engaged with the cam feeding gear 105, and the calendar feeding wheel 40 is rotated counterclockwise in FIG. In conjunction with the calendar feed wheel 40, the date one-digit feed cam 51 rotates counterclockwise.

  The 1-day feed cam 51 has a cam surface formed on the outer peripheral surface thereof, and is installed so that the first protrusion 53, the second protrusion 54, and the third protrusion 55 protrude outward. Has been. The illustrated state corresponds to an initial display position where the date single digit hand 7 indicates “1” on the date single digit display scale 12. At this time, the cam contact portion 63 of the 1-digit feed lever 60 is in contact with the cam surface that is closest to the cam rotation center P1.

  When the 1-day feed cam 51 rotates counterclockwise (r1 direction in the figure), the 1-day feed lever 60 rotates clockwise about the fixed shaft 64 (r2 direction in the figure) as the center of the 1-digit feed cam 51. It is rotated until it reaches one protrusion 53. Then, the 1-day hand wheel 220 that meshes with the gear portion 61 of the 1-day feed lever 60 is rotated counterclockwise (r3 direction in the drawing). When the first protrusion 53 reaches the position of the cam contact portion 63, the date one-digit hand 7 indicates “0” as the final display position of the date one-digit display scale 12.

  Further, when the one-digit feed cam 51 rotates for 24 hours, the engagement between the cam contact portion 63 and the first protrusion 53 is released. Then, the date 1-digit feeding lever 60 is instantaneously rotated counterclockwise by the elastic force of its own spring portion 62, the date 1-digit hand wheel 220 is rotated clockwise, and the date 1-digit hand 7 is It returns to the state which designates "1" of the date 1-digit display scale 12.

  When the day one-digit feed cam 51 further rotates, the cam contact portion 63 gets over the first protrusion 53 and then the day one-digit hand until the cam contact portion 63 reaches the second protrusion 54 as described above. The car 220 is rotated counterclockwise, and the date one-digit hand 7 sequentially indicates “1” to “0” on the date one-digit display scale 12.

  Further, when the one-digit feeding cam 51 rotates for 24 hours, the engagement between the cam contact portion 63 and the second protrusion 54 is released. Then, the date 1-digit feeding lever 60 is instantaneously rotated counterclockwise by the elastic force of its own spring portion 62, the date 1-digit hand wheel 220 is rotated clockwise, and the date 1-digit hand 7 is It returns to the state where “1” is indicated.

  When the day one-digit feed cam 51 further rotates, the cam contact portion 63 gets over the second protrusion 54 and then the date one-digit hand until the cam contact portion 63 reaches the third protrusion 55 as described above. The car 220 is rotated counterclockwise, and the date one-digit hand 7 sequentially indicates “1” to “0” on the date one-digit display scale 12.

  Furthermore, when the one-digit feed cam 51 rotates for 24 hours, the engagement between the cam contact portion 63 and the third projection portion 55 is released. Then, the date 1-digit feeding lever 60 is instantaneously rotated counterclockwise by the elastic force of its own spring portion 62, the date 1-digit hand wheel 220 is rotated clockwise, and the date 1-digit hand 7 is The date 1 digit display scale 12 is indicated as “1”.

  For 48 hours after the third protrusion 55 and the cam contact portion 63 are released, the day 1 digit cam 51 maintains the position of the day 1 digit feed lever 60. This is because the date 1 digit display scale 12 is set to “1” in the date 1 digit display in order to indicate the 31st and 01st days with the date 10 digit hand 6 and the date 1 digit hand 7 which will be described later. This is because it is necessary to instruct twice.

  Incidentally, the one-digit feed cam 51 is rotated by one tooth of the cam feed gear 105 every 24 hours by the calendar feed claw 39. Since the cam feed gear 105 has 31 teeth, the one-digit feed cam 51 is rotated by “360 ÷ 31” degrees in 24 hours (one day). That is, it is rotated by one day.

  Further, a calendar feed jumper 106 is elastically engaged with the cam feed gear 105, and the cam feed gear 105 is position-regulated with a sense of moderation for each tooth. Thus, the date single digit hand 7 can indicate the approximate center of each number on the date single digit display scale 12.

  Next, driving of the day 10-digit hand wheel 230 (date 10-digit hand 6) according to the second embodiment will be described with reference to the drawings. FIG. 15 is a drive explanatory view showing the drive of the day 10-digit hand wheel 230 according to the second embodiment. The day 10-digit feed cam 41 rotates counterclockwise in conjunction with the calendar feed wheel 40.

  The 10-day feed cam 41 has a cam surface formed on the outer peripheral surface, and is installed so that the first protrusion 43, the second protrusion 44, and the third protrusion 45 protrude outward. Has been. The state shown in the figure is an initial display position, and corresponds to a position where the date 10-digit hand 6 indicates “0” on the date 10-digit display scale 11. At this time, the cam contact portion 73 of the 10-day feed lever 70 is in contact with the cam surface that is closest to the cam rotation center P1.

  When the date 10-digit feeding cam 41 rotates counterclockwise (r1 direction in the figure), the date 10-digit feeding lever 70 rotates counterclockwise (r3 direction in the figure) around the fixed shaft 74 as the center of rotation. The first protrusion 43 is rotated. Then, the date 10-digit hand wheel 230 that meshes with the gear portion 71 of the date 10-digit feed lever 70 is rotated clockwise (direction r4 in the drawing). When the first protrusion 43 reaches the position of the cam contact portion 73, the date 10-digit hand 6 indicates “1” (that is, 10 days) of the date 10-digit display scale 11.

  The 10-day feed lever 70 does not operate until the 10-day feed cam 41 further rotates until the cam contact portion 73 rides on the second protrusion 44. During this period, the cam contact portion 73 from the cam rotation center P1. This is because the distance to is constant. When the cam contact portion 73 rides on the second protrusion 44, the date 10-digit hand 6 indicates “2” (that is, 20th) of the date 10-digit display scale 11.

  The 10-day feed lever 70 does not operate until the 10-day feed cam 41 further rotates and immediately before the cam contact portion 73 rides on the third protrusion 45. This is because the distance from the cam rotation center P1 to the cam contact portion 73 is constant. When the cam contact portion 73 rides on the third protrusion 45, the date 10-digit hand 6 indicates “3” (that is, 30 days) of the date 10-digit display scale 11.

  Further, when the 10-day feed cam 41 rotates for 24 hours, the engagement between the cam contact portion 73 and the third protrusion 45 is released. Then, the date 10-digit feeding lever 70 is instantaneously rotated clockwise by the elastic force of its own spring portion 72, the date 10-digit hand wheel 230 is rotated counterclockwise, and the date 10-digit hand 6 is “0” of the date 10-digit display scale 11 (that is, a state where the date is 1 digit) is indicated.

  A calendar feed jumper 106 is elastically engaged with the cam feed gear 105 to position-control the cam feed gear 105 with a sense of moderation for each tooth. As a result, the 10-digit date hand 6 can indicate the approximate center of each number on the date 10-digit display scale 11.

  Therefore, according to the second embodiment, the date 10-digit hand wheel 230 and the date 1-digit hand wheel 220 are disposed apart from each other in the plane direction, and can be independently rotated. Has been. For this reason, in addition to the effects of the first embodiment, the date 10-digit hands 6 and the date 1-digit hands 7 are arranged apart from each other in the plane direction, so that it is possible to realize a more innovative design that has not been achieved in the past. effective.

  In the second embodiment, the distance between the rotation center of the day 10-digit hand wheel 230 and the rotation center of the day 10-digit feed lever 70 is set to the rotation center of the day 10-digit hand wheel 90 in the first embodiment. The distance from the rotation center of the lever 70 is the same. That is, the rotation center of the day 10-digit hand wheel 230 is placed on a circle whose radius is the distance to the center of rotation of the day 10-digit hand wheel 90 starting from the center of rotation of the day 10-digit feed lever 70. In the second embodiment, the day 10-digit hand wheel 230 is arranged.

  With such a configuration, the date 10-digit hand wheel 230 and the day 1-digit hand wheel 220 are arranged apart from each other in the plane direction, and the day 10-digit hand wheel 90 and the day 1-digit hand wheel 80 Can be used in common with the same rotating shaft, and the date 10-digit hand wheel 230 can be used in common. Both designs can be easily realized.

  Further, in the second embodiment, the distance between the rotation center of the day one-digit hand wheel 220 and the rotation center of the day one-digit hand feeding lever 60 is set to be the distance between the rotation center of the day one-digit hand wheel 80 and the day one-digit feed in the first embodiment. The distance from the rotation center of the lever 60 is the same. That is, the rotation center of the day 1-digit hand wheel 220 comes on a circle whose radius is the distance to the center of rotation of the 1-day hand wheel 80, starting from the center of rotation of the day 1-digit feed lever 60. In the second form, the day 1-digit hand wheel 220 is arranged.

  With such a configuration, the date 10-digit hand wheel 230 and the day 1-digit hand wheel 220 are arranged apart from each other in the plane direction, and the day 10-digit hand wheel 90 and the day 1-digit hand wheel 80 Can be used in common with the same rotating shaft, and the date 1-digit hand wheel 220 can be used in common. Both designs can be easily realized.

  Furthermore, in the second embodiment, it becomes easy to dispose the tip portions indicating the dates of the date 10-digit hand 6 and the date 1-digit hand 7 so as not to cross each other, and the 10-digit number and 1-digit date It becomes possible to distinguish numbers and make them easier to visually recognize, and it is possible to further eliminate misreading.

(About other embodiments)
Although the calendar clocks 1 and 1A according to the embodiment of the present invention have been described above, various modifications can be made without departing from the scope of the present invention. For example, the movement of the basic movement 30 is transmitted in the order of the hour wheel 33, the calendar feeding gear 38, the intermediate gear 146, and the day-month feeding carriage 150 in this order, and the calendar feeding is performed by the calendar feeding claw 39 fixed to the day-month feeding carriage 150. Although the vehicle 40 is driven, other wheel train configurations may be adopted in which some gears are omitted or other gears are added.

  Further, the 1-day feed cam 51 and the 10-day feed cam 41 arranged concentrically, and the 1-day feed for rotating the 1-digit hand wheel 80 in conjunction with the rotation of the 1-day feed cam 51. 1 member which integrated each cam 41 and 51, although it was set as the structure which has a member and the date 10 digit feeding member which rotates the date 10 digit handwheel 90 in response to rotation of the date 10 digit feeding cam 41 It is good.

  In addition, a combination of a spring-biased slider and a toothless gear is inserted into the train wheel from the day-month feeding wheel 150 to the day one-digit hand wheel 80 so that the day one-digit hand wheel 80 is reciprocated. Similarly, a combination of a spring-biased slider and a toothless gear is inserted into the train wheel from the day-month feeding wheel 150 to the day 10-digit hand wheel 90, and the day- 10-day hand wheel 90 is reciprocated. It may be made to do. That is, the drive transmission from the day-month feed wheel 150 to the day 1-digit hand wheel 80 and the drive transmission from the day-month feed wheel 150 to the day 10-digit hand wheel 90 use various other known transmission configurations. Therefore, any configuration may be used as long as the 1-day hand wheel 80 and the 10-day hand wheel 90 are swung and rotated.

  In addition, the date display part is arranged in the upper front part of the calendar clock 1, 1A, but it may be arranged in the lower part (6 o'clock direction) or on the right (3 o'clock direction). Good. In addition, the date display is a number such as 1, 2, 3, etc., but instead of each number, it will represent the contents corresponding to each number, only a point, the number of points, or the English (For example, “1” is “O” for ONE and “2” is “T” for TWO).

  Further, the day 10-digit display scale 11 and the day 1-digit display scale 12 are separate members (separate areas). However, they may be integrated and distinguished by color, or the day 1-digit display scale 12. Or 0 to 3 of them may also be used as a daily 10-digit display scale. Also, the interval between the numbers may not be constant, or the number interval on the 10-digit display scale 11 may be wider than the number interval on the 1-digit display scale 12 per day.

  DESCRIPTION OF SYMBOLS 1, 1A ... Calendar clock, 6 ... Date 10-digit hand, 7 ... Date 1-digit hand, 11 ... Date 10-digit display scale, 12 ... Date 1-digit display scale, 41 ... Day 10-digit feed cam, 51 ... Date 1-digit feeding cam, 60 ... day 1-digit feeding lever, 70 ... day 10-digit feeding lever, 80 ... day 1-digit hand wheel, 90 ... day 10-digit hand wheel.

Claims (8)

Of the calendar display for 31 days, which is one month, a 10-digit hand for a date indicating a 10-digit number, a 1-digit hand for a date indicating a 1-digit number,
A 10-day hand wheel with the 10-digit hand for the date fixed;
A single-digit day wheel with the single-digit hand for the date fixed;
1-day feed cam and 10-day feed cam arranged concentrically;
A one-day feed member for rotating the one-digit day wheel in conjunction with the rotation of the one-digit feed cam;
A 10-day feed member for rotating the 10-day hand wheel in conjunction with the rotation of the 10-day feed cam;
A calendar clock characterized by comprising: The calendar clock according to claim 1,
48 hours have elapsed after the 10-digit date hand has been rotated clockwise from the position displaying “0” on the day 10-digit display scale by the 10-digit feed member to the position displaying “3”. Later, the engagement between the projection provided on the 10-day feeding cam and the 10-day feeding member is released, and the projection is rotated counterclockwise and returned to the position displaying “0”. Calendar clock characterized by. In the calendar clock according to claim 1 or 2,
The date one-digit hand is moved from the “1” display position of the date one-digit display scale to the “9” display position and further to the “0” display position following “9” by the one-digit date feed member. After 24 hours have passed after the counterclockwise rotation, the projection provided on the one-day feeding cam is disengaged from the one-day feeding member and the clockwise rotation is performed. A calendar clock which is returned to the display position of “1”. Of the calendar display for 31 days, which is one month, a 10-digit hand for a date indicating a 10-digit number, a 1-digit hand for a date indicating a 1-digit number,
A date 10-digit display scale having an area representing 0, 1, 2, 3 which is four numbers indicated by the 10-digit date hand, or contents corresponding to the numbers;
A date one-digit display scale having an area representing 0 to 9 which is the ten numbers indicated by the date one-digit hand or the content corresponding to the numbers;
A calendar clock characterized by comprising: The calendar clock according to claim 4,
The calendar clock according to claim 10, wherein the date 10-digit display scale and the date 1-digit display scale are each formed in an arc shape and are spaced apart from each other. In the calendar clock according to any one of claims 1 to 5,
A calendar clock characterized in that the 10-digit date wheel and the 1-digit date wheel are arranged concentrically and are independently rotatable. In the calendar clock according to any one of claims 1 to 5,
The calendar timepiece, wherein the day 10-digit hand wheel and the day 1-digit hand wheel are spaced apart from each other in a plane direction and are independently rotatable. In the calendar clock according to any one of claims 1 to 7,
A calendar clock characterized in that tip portions for indicating the dates of the 10-digit date hand and the 1-digit date hand are arranged so as not to cross each other.

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