JP2012013457A - Calendar timepiece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a calendar timepiece with an easily-visible date display and novel design.SOLUTION: A calendar timepiece 1 has a first calendar hand 5 for pointing first to fifteenth and a second calendar hand 6 for pointing sixteenth to thirty-first in the calendar display of thirty-one days in one month, a first calendar wheel to which the first calendar hand 5 is fixed, a second calendar wheel to which the second calendar hand 6 is fixed, a first calendar advancing cam having its rotation center, a second calendar advancing cam having its rotation center, a first calendar advancing member for rotating the first calendar wheel in combination with the rotation of the first calendar advancing cam, and a second calendar advancing member for rotating the second calendar wheel in combination with the rotation of the second calendar advancing cam. By adopting such constitution, the calendar timepiece with an easily-visible date display and novel design can be obtained. And, it is preferable to provide a first calendar display scale 10 for displaying the first to fifteenth and a second calendar display scale 11 for displaying the sixteenth to thirty-first.

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 the date is displayed with the pointer, the inner row date representing the numbers from 1 to 16 days out of 31 days, which is one month, on the same circumference on one side of the dial, and the outer row date of the inner row date There are calendar clocks in which outer row dates representing numbers from the 17th to the 31st are arranged on a concentric circle in a half-moon shape, and the date is indicated in order by a date indication display attached to the date wheel (for example, patents) Reference 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). ).

JP-A-4-328889 Japanese Patent Laid-Open No. 11-6880

  In Patent Document 1 described above, the date is indicated by the date number attached to the date indicator. Unlike the time indication by the hands, the sense of unity and precision by instructing the time and date by the hands is given. A design cannot be realized.

  Moreover, in patent document 2, 31 days which are one month are scale-displayed in a fan shape. In such a configuration, when the time display hand is arranged at the center of the timepiece, there is a problem that the interval of the scale every day becomes small and the readability of the date is deteriorated. Furthermore, since many forms of date display have been commercialized so far, they are too generalized, have no novelty in design, and lack a novelty. In addition, because of such mature products, 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.

  The calendar clock according to one embodiment of the present invention includes a first calendar pointer that indicates a date from the first day to the 15th day, and a date from the 16th to the 31st day among the calendar display for 31 days that is one month. A second calendar wheel for indicating, a first calendar wheel to which the first calendar pointer is fixed, a second calendar wheel to which the second calendar pointer is fixed, a first calendar feed cam and a second calendar each having a rotation center A feed cam, a first calendar feed member that rotates the first calendar wheel in conjunction with the rotation of the first calendar feed cam, and a second calendar wheel that rotates in accordance with the rotation of the second calendar feed cam. And a two-calendar feeding member.

  According to the present embodiment, the date indication between the first day and the 15th day and the date indication between the 16th and the 31st day in the date display of one month, respectively, the first calendar guide and the second calendar guide The date can be clearly indicated even when the display area of a dial such as a watch is small.

  In addition, design with a sense of unity and precision can be realized by designating the time and date with the hands.

  At the same time, the first calendar pointer is rotated to the first undesignated position, which is a position not showing the date, 24 hours after the 15th day of the date is designated by the first calendar wheel feeding member. The calendar hand indicates the 16th day of the date by the second calendar feeding member, and the second calendar hand indicates the 31st date by the second calendar wheel feeding member, and at a position not indicating the date 24 hours later. Yes, it is preferable that the first calendar pointer indicates one day of the date by the first calendar feeding member at the same time that the first calendar pointer is rotated to the second non-designated position that is different from the first non-designated position.

  Here, the first non-designated position is a position where the first calendar pointer does not indicate a date, and the second non-designated position is a position where the second calendar pointer does not indicate a date. That is, when the first calendar pointer indicates a date between 1st and 15th, the second calendar pointer does not indicate the date. When the second calendar pointer indicates a date between the 16th and 31st, the first calendar pointer does not indicate the date. By doing so, it is possible to indicate the 16th day of the date by the second calendar pointer 24 hours after the first calendar pointer indicates the 15th day, and 24 hours after the second calendar pointer indicates the 31st day. One day of the date can be indicated by one calendar hand. Therefore, the 31st day of one month can be instructed continuously even though the configuration has two calendar hands.

  Further, when the second calendar pointer reaches the second non-designated position, the engagement between the top of the first calendar feeding cam and the first calendar feeding member is released, and the first calendar pointer indicates one day of the date. When the first calendar pointer reaches the first undesignated position, the engagement between the top of the second calendar feed cam and the second calendar feed member is released, and the second calendar pointer is released. Is preferably returned instantaneously to a position indicating the 16th day of the date.

  In this way, for example, when the date reaches 0:00 on the first day, the first calendar pointer indicates the first day instantaneously, and when the date reaches 0:00 on the 16th, the second calendar pointer. Can instantly indicate the 16th day, and the first and second calendar hands enable a so-called retrograde display that reciprocates in a substantially fan shape.

  In addition, the first calendar display scale of a substantially fan-shaped arc that represents the date from the 1st to the 15th indicated by the first calendar pointer, and the substantially sector-shaped that represents the date from the 16th to the 31st specified by the second calendar pointer. It is preferable to further have an arc-shaped second calendar display scale.

  According to this embodiment, since the date display of one month is represented by the first calendar display scale from the 1st to the 15th, and from the 16th to 31st is represented by the second calendar display scale, the entire dial plate Even if the display area is small, it is possible to clearly indicate the 31st day of one month.

  Furthermore, it is preferable that the first calendar display scale and the second calendar display scale are arranged at positions facing each other across the rotation axis of the time display hand.

  With such a configuration, the first calendar display scale and the second calendar display scale can be arranged so as to face each other in the center direction of the dial, and therefore, between the first calendar display scale and the second calendar display scale. In addition, other function displays can be arranged in a balanced manner. Other function displays include, for example, the day of the week display and the remaining remaining time display of the mainspring. In addition to the time and date, the day of the week and the remaining remaining capacity display are instructed by the guidelines, and the functions are enhanced and unified. A design with a sense of precision and precision can be realized.

It is an external appearance top view which shows an example of the calendar clock which concerns on Embodiment 1 of this invention. FIG. 2 is a plan view showing a calendar mechanism and a continuous remaining amount display mechanism incorporated in the calendar clock shown in FIG. 1. It is sectional drawing which shows the date display mechanism integrated in the calendar clock shown in FIG. It is sectional drawing which shows the other part of the date display mechanism integrated in the calendar clock shown in FIG. It is sectional drawing which shows the day feeding mechanism integrated in the calendar clock shown in FIG. It is sectional drawing which shows the continuous residual amount display mechanism integrated in the calendar clock shown in FIG. It is a top view which shows the structure of the 1st calendar feeding cam and the 2nd calendar feeding cam incorporated in the calendar clock shown in FIG. It is a top view which shows the 1st calendar feeding mechanism integrated in the calendar clock shown in FIG. It is a top view which shows the 2nd calendar feeding mechanism integrated in 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.

(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 at the center of a dial 9. Also, in the 9 o'clock direction, among the calendar display for 31 days that is one month, the first calendar pointer 5 that indicates the date from the first day to the 15th day, and in the 3 o'clock direction, the 31st day that is one month. Of the minute calendar display, there is provided a second calendar pointer 6 that indicates the date from the 16th to the 31st.

  Further, the calendar clock 1 is provided with a continuous remaining amount display indicator (sometimes referred to as a power reserve display indicator) 8 for instructing the continuous remaining amount of the mainspring as a driving source in the 12 o'clock direction. Are provided with a day-of-week display pointer 7 for indicating the day of the week.

  A time display scale is provided on the outer peripheral portion of the dial 9, and the surface of the dial 9 in the 9 o'clock direction is a substantially fan-like shape with numbers 1 to 15 indicated by the first calendar hand 5 indicated. An arc-shaped first calendar display scale 10 is provided, and a substantially fan-shaped arc-shaped second calendar display scale with a date from the 16th to 31st indicated by the second calendar pointer 6 in the 3 o'clock direction is attached. 11 is provided. That is, the first calendar display scale 10 and the second calendar display scale 11 are arranged so that the substantially fan-shaped arc shapes face each other across the rotation axis of the time display hands (hour hand 2, minute hand 3, second hand 4). . In addition, a substantially sector-shaped arc-shaped continuous remaining amount display scale 13 indicated by the continuous remaining amount display pointer 8 is provided in the 12 o'clock direction, and a substantially sector-shaped arc shape indicated by the day-of-week display pointer 7 is indicated in the 6 o'clock direction. A day-of-week display scale 12 is provided.

  In FIG. 1, the first calendar pointer 5 indicates “1”, and the second calendar pointer 6 at this time indicates “00” as the second non-designated position where no date is displayed. That is, it represents “one day” on the 31st of a month. Note that “0” on the first calendar display scale represents the first non-designated position where the first calendar pointer 5 does not display the date, and the second calendar pointer 6 is from the 16th to 31st of the second calendar display scale 11. The first calendar pointer 5 indicates “0”. Note that the first non-designated position and the second non-designated position may be a code other than numerical display, or may be blank.

  In FIG. 1, the day of the week display pointer 7 indicates Friday (displayed as FR), and the remaining remaining amount display pointer 8 indicates that the remaining remaining amount is 10 hours. In FIG. 1, the needles 2, 3, 4, 5, 6, and 7 are displayed so as to be transparent. 7, that is, the portion of the dial 9 covered with the pointers 2, 3, 4, 5, 6, 7 cannot be seen from the front side. However, the needles 2, 3, 4, 5, 6, and 7 may be translucent, some needles may be non-transparent, and other needles may be transparent or translucent.

  The date display indicates that the first calendar pointer 5 is rotated clockwise from the 1st to the 15th and is turned to the “0” position 24 hours after the 15th is indicated. The two calendar hands 6 instantaneously rotate clockwise from the “00” position to indicate the 16th day of the date, and instruct every day until the 31st day is reached. At the same time as the second calendar hand 6 reaches the “00” position 24 hours after indicating the 31st day of the date, the first calendar hand 5 momentarily turns counterclockwise to the first day of the date. Instruct.

  The day of the week display is made by rotating the day of the week display pointer 7 clockwise to display the day of the week every day from Sunday (displayed as SU) and instantaneously 24 hours after displaying Saturday (displayed as SA). Turns counterclockwise and returns to Sunday.

  The remaining amount display indicates that when the crown 20 is rotated and the mainspring is wound up, the mainspring is rotated clockwise to indicate that there is a duration of 40 hours when the mainspring is fully wound. Finally, “0”, which is an initial state in which the mainspring is not wound up at all, is displayed. When “0” is instructed, the watch stops driving.

  Next, the configuration of the calendar clock 1 will be described with reference to the drawings.

  FIG. 2 is a plan view showing the calendar mechanism and the remaining remaining amount display mechanism incorporated in the calendar clock 1, and FIGS. 3 and 4 are cross-sectional views showing the date display mechanism of the calendar mechanism. The calendar mechanism is arranged above the cross section of the basic movement 30 (see FIGS. 3 and 4).

  The basic movement 30 includes a mainspring as a power source, an escapement, a speed control mechanism, a speed increasing mechanism and a speed reducing mechanism, a time display mechanism, a mainspring winding mechanism, a time correction mechanism, and the like. Since each of these mechanisms can employ a known configuration of a conventional mechanical timepiece, description thereof is omitted. As the basic movement 30, a quartz type analog timepiece can be adopted in addition to the mechanical timepiece.

  First, the date display mechanism in the configuration of the calendar clock 1 will be described with reference to FIGS.

  As shown in FIGS. 3 and 4, the basic movement 30 and the calendar mechanism are connected by a machine frame (generally referred to as a base plate: not shown) of the basic movement 30 and a first machine frame 40 as a basic member of the calendar mechanism. ing. At the center of the plane of the first machine frame 40, there are a second hand wheel 31 that passes through the dial 9 from the basic movement 30, a minute hand wheel 32 that uses the second hand wheel 31 as a support shaft for rotation, and a cylinder that rotates integrally with the minute hand wheel 32. A pinion 33 and a pinion wheel 34 having the pinion pinion 33 as a supporting shaft for rotation thereof are rotatably mounted. An intermediate transmission gear 36 is fixed to the hour wheel 34. A second hand 31 is attached to the second hand wheel 31, a minute hand 3 is attached to the hour pinion 33 rotating integrally with the minute hand wheel 32, and an hour hand 2 is attached to the hour wheel 34. These hands indicate the time.

  A calendar feeding gear 50 having a common rotation center with the hour wheel 34 is rotatably mounted on the central convex portion of the first machine casing 40. The calendar feed gear 50 has a disc-shaped cam seat 52, a first calendar feed cam 60, and a second calendar feed cam 70, which are stacked in order so as to be concentric with each other. They are fixed by a fixed shaft 51 (only one is shown in FIG. 3) so that they cannot rotate relative to each other.

  The calendar feed gear 50, the cam seat 52, the first calendar feed cam 60, and the second calendar feed cam 70 are integrated by the two cam fixing shafts 51, and the first machine frame 40 and the third machine The frame 42 is rotatably supported. Therefore, the first calendar feeding cam 60 and the second calendar feeding cam 70 rotate concentrically with the calendar feeding gear 50. Note that a positioning shaft 35 is fixed to the first machine casing 40 to restrict the position of the third machine casing 42 in the height direction and the planar direction.

  Further, a calendar feeding wheel jumper 55 that regulates the position of the calendar feeding gear 50 in the rotational direction is disposed on the surface of the first machine casing 40. The calendar feeding wheel jumper 55 includes a gear engaging portion 58 that engages the calendar feeding gear 50 and a spring portion 57 that urges the gear engaging portion 58 to the calendar feeding gear 50 and is attached to the guide shaft 56. The first machine casing 40 and the second machine casing 41 are held.

  As shown in FIGS. 2 and 4, the calendar mechanism further includes an intermediate gear 37 that transmits the rotation of the intermediate transmission gear 36 and a date / day feeding wheel 120 that transmits the rotation of the intermediate gear 37. The date / day feeding wheel 120 includes a date / day feeding gear 122 fixed to the support shaft 126, a calendar feeding claw 123, and a day feeding claw 125. The day / day feeding wheel 120 is mounted such that a cylindrical through hole provided in the center surrounds the outer periphery of the day / day feeding axle 121 fixed to the first machine casing 40. Can be rotated concentrically with the rotation support shaft.

  The rotation of the hour wheel 34 that rotates once in 12 hours is transmitted to the date / day feeding gear 122 through the intermediate transmission gear 36 and the intermediate gear 37 at a reduction ratio of 1/2. Therefore, the date / day feeding gear 122 rotates once in 24 hours, and the calendar feeding claw 123 rotates once in 24 hours together with the date / day feeding gear 122. The calendar feeding claw 123 rotates the calendar feeding gear 50 one tooth at a time in 24 hours. Since the calendar feeding gear 50 has 31 teeth at regular intervals on the outer periphery, it rotates once in 31 days (one month). Therefore, the first calendar feeding cam 60 and the second calendar feeding cam 70 also rotate once in 31 days.

  Next, with reference to FIGS. 2 and 3, the configuration of the first calendar feeding mechanism for instructing the first to the 15th of a month and the second calendar feeding mechanism for instructing the 16th to 31st will be described. First, the first calendar feeding mechanism will be described. The first calendar feeding mechanism includes a first calendar feeding lever 80 as a first calendar feeding member that swings about a shaft 81 fixed to the first machine frame 40 by a first calendar feeding cam 60, and a first calendar feeding lever 80. It has a first calendar wheel 100 which is rotated by a calendar feed lever 80 and to which the first calendar pointer 5 is attached.

  As shown in FIG. 3, the first calendar wheel 100 has a first calendar wheel 101 and a first calendar wheel 102 fixed to the first calendar wheel 101, and the first machine frame 40 and the third machine The frame 42 is rotatably supported.

  As shown in FIG. 2, the first calendar feed lever 80 includes a cam contact portion 84 projecting so as to contact the cam surface (side surface) of the first calendar feed cam 60 and a cam contact portion 84. A spring portion 82 for biasing the cam surface of the calendar feeding cam 60 and a gear portion 83 that meshes with the first calendar gear 102 and rotates the first calendar wheel 100 are provided. The first calendar feeding lever 80 is held between the second machine casing 41 and the third machine casing 42.

  Further, the first calendar feeding mechanism has a first calendar wheel jumper 85 for restricting the rotation of the first calendar wheel 100 with good moderation for each tooth of the first calendar gear 102. The first calendar wheel jumper 85 includes a first calendar wheel engagement portion 87 that engages with the first calendar wheel 100, a spring portion 86 that biases the first calendar wheel engagement portion 87 against the first calendar wheel 100, have. The first calendar wheel jumper 85 has a guide hole 87 b attached to a guide shaft 88 fixed to the second machine casing 41, and is fixed to the second machine casing 41 by a fixing screw 89.

  A positioning portion 87a protruding in a peninsular shape is formed at the tip of the first calendar wheel engaging portion 87, and the positioning portion 87a abuts on the positioning wall 41a provided on the second machine casing 41. Thus, the urging force of the first calendar wheel engaging portion 87 with respect to the first calendar wheel 100 is controlled within a predetermined range. The date feeding operation of the first calendar feeding mechanism will be described later with reference to FIGS.

  Next, the configuration of the second calendar feeding mechanism will be described. The second calendar feeding mechanism has a second calendar feeding lever 90 as a second calendar feeding member that is swung by a second calendar feeding cam 70 with a shaft 91 fixed to the first machine casing 40 as a rotation support shaft, The second calendar wheel 110 is rotated by the second calendar feeding lever 90 and to which the second calendar pointer 6 is attached.

  As shown in FIG. 3, the second calendar wheel 110 includes a second calendar wheel 111 and a second calendar wheel 112 fixed to the second calendar wheel 111, and the first machine frame 40 and the third machine The frame 42 is rotatably supported.

  As shown in FIG. 2, the second calendar feed lever 90 includes a cam contact portion 94 projecting so as to contact the cam surface (side surface) of the second calendar feed cam 70 and a cam contact portion 94. It has a spring portion 92 for urging the cam surface of the calendar feeding cam 70, and a gear portion 93 that meshes with the second calendar gear 112 and rotates the second calendar wheel 110. The second calendar feeding lever 90 is held between the second machine casing 41 and the third machine casing 42.

  Further, the second calendar feeding mechanism has a second calendar wheel jumper 95 for regulating the rotation of the second calendar wheel 110 one tooth at a time. The second calendar wheel jumper 95 includes a second calendar wheel engagement portion 97 that engages with the second calendar wheel 112, a spring portion 96 that biases the second calendar wheel engagement portion 97 against the second calendar wheel 110, have. The second calendar wheel jumper 95 has a guide hole 97 b attached to a guide shaft 98 fixed to the second machine casing 41, and is fixed to the second machine casing 41 by a fixing screw 99.

  A positioning portion 97a protruding in a peninsular shape is formed at the tip of the second calendar wheel engaging portion 97, and the positioning portion 97a abuts against the positioning wall 41b provided in the second machine casing 41. Thus, the urging force of the second calendar wheel engaging portion 97 with respect to the second calendar wheel 110 is controlled within a predetermined range. The date feeding operation of the second calendar feeding mechanism will be described later with reference to FIGS.

  Next, in the configuration of the calendar clock 1, the configuration of the day feeding mechanism will be described with reference to FIGS.

  FIG. 5 is a cross-sectional view showing the day feeding mechanism. The day feeding mechanism is swung with the day feeding wheel 130 rotated by the day feeding claw 125 and the day feeding lever shaft 141 fixed to the first machine frame 40 by the rotation of the day feeding wheel 130 as a rotation support shaft. A day feeding lever 140 and a day indication hand wheel 150 which is rotated by the day feeding lever 140 and to which the day indication hand 7 is attached.

  The day feeding wheel 130 has a day star wheel 132 in which 14 teeth are formed, and a day feeding cam 133 disposed so as to overlap the day star wheel 132, and both are united by a fixed shaft 134. Has been. The day feeding wheel 130 is mounted on a day feeding axle 131 fixed to the first machine casing 40, and can be rotated using the day feeding axle 131 as a rotation support shaft.

  As shown in FIG. 2, the day feeding lever 140 includes a cam abutting portion 144 projecting so as to abut the cam surface (side surface) of the day feeding cam 133, and the cam abutting portion 144 as a cam of the day feeding cam 133. It has a spring part 142 for energizing the surface, and a gear part 143 for rotating the day indicator hand wheel 150. The day feeding lever 140 is held between the second machine casing 41 and the third machine casing 42.

  As shown in FIG. 5, the day of the week indicator wheel 150 has a day of the week indicator wheel 152 fixed to a support shaft 151 to which the day of the week indicator 7 is attached. It is held rotatably between. The day-of-week indication pointer gear 152 meshes with the gear portion 143 of the day feeding lever 140.

  Further, as shown in FIG. 2, the day feeding mechanism has a day jumper 136 for regulating the day indication hand wheel 150 one tooth at a time. The day jumper 136 includes a day star wheel engaging portion 138 that engages with the day star wheel 132, and a spring portion 137 that biases the day star wheel engaging portion 138 toward the day star wheel 132. The day jumper 136 is held between the first machine casing 40 and the second machine casing 41 by restricting the position in the plane direction by two guide shafts 139 fixed to the first machine casing 40 ( (See also FIG. 5).

  Next, the day feeding operation will be described with reference to FIG.

  The state shown in FIG. 2 is a state in which the day-of-week display pointer 7 attached to the support shaft 151 indicates the beginning of one week, that is, Sunday (SU is displayed: see FIG. 1). The day / day feeding wheel 120 is rotated once per day (24 hours), and the day feeding claw 125 is rotated by two teeth of the day star wheel 132 during one rotation. The day feeding cam 133 fixed to the day star 132 also rotates counterclockwise by two teeth of the day star 132 in one day.

  Since the day feeding cam 133 has a spiral cam surface, as the day feeding cam 133 rotates, that is, as the cam surface shifts from a lower part to a higher part, the day feeding lever 140 2, the feed lever shaft 141 is rotated counterclockwise in FIG. 2, and the day indicator wheel 150 is rotated one day at a time until Saturday (SA is displayed: see FIG. 1) for one week. To go. The rotation is continued until a Saturday is instructed, and when 24 hours have passed, the engagement between the cam contact portion 144 of the day feeding lever 140 and the cam apex 133a of the day feeding cam 133 is released.

  Then, since the day feeding lever 140 is urged toward the day feeding cam 133 by the spring portion 142, the day feeding lever 140 instantaneously shifts from the high part to the low part of the cam surface. It is instantaneously turned counterclockwise. Then, the day of the week indicator hand wheel 150 is rotated counterclockwise in FIG. 2 by the gear portion 143, and the day of the week indicator hand 7 instantaneously indicates Sunday from Saturday. This action is repeated in one week. That is, the day feeding lever 140 swings and returns to the original for one week.

  Since the rotational position of the day star wheel 132 is regulated by the day jumper 136, the rotational position of the day indicator hand wheel 150 is also regulated, and the day indicator hand 7 is designated without deviating from the day display character.

  Next, the configuration of the continuous remaining amount display mechanism in the configuration of the calendar clock 1 will be described with reference to FIGS.

  FIG. 6 is a cross-sectional view showing a continuous remaining amount display mechanism. The continuous remaining amount display mechanism includes a continuous remaining amount display wheel 170 to which the continuous remaining amount display pointer 8 is attached, and a transmission gear 165 that connects the barrel 160 and the continuous remaining amount display wheel 170.

  The barrel 160 has a built-in mainspring as a power source and rotates counterclockwise as seen from FIG. 2 as the mainspring is unwound. Since the configuration and function of the barrel 160 are well known, description thereof will be omitted.

  The transmission gear 165 is rotatably attached to a shaft 166 fixed to the first machine casing 40, and transmits the rotation of the barrel 160 to the continuous remaining amount display wheel 170.

  The continuous remaining amount display wheel 170 includes a continuous remaining amount display gear 171 and a continuous remaining amount display axle 172, and is held between a machine frame (not shown) of the basic movement 30 and the first machine frame 40.

  In the state where the mainspring is tightened, in this embodiment, the remaining remaining time is 40 hours (10 hours is displayed in FIG. 1). As the timepiece is driven, the barrel 160 is rotated counterclockwise by the elastic force of the mainspring, and the remaining remaining amount display wheel 170 is rotated counterclockwise via the transmission gear 165. Then, after 40 hours, the remaining remaining amount display indicator 8 displays “0 (time)”. At this time, the clock stops. Then, the remaining remaining amount indicator 8 indicates the remaining remaining time corresponding to the amount of tightening according to the degree to which the mainspring is tightened.

  Next, the date feeding operation of the first calendar feeding mechanism and the second calendar feeding mechanism will be described with reference to FIG.

  First, before describing the date feeding operation, the configuration of the first calendar feeding cam 60 and the second calendar feeding cam 70 that regulate date feeding driving will be described in detail. Reference is also made to FIG.

  FIG. 7 is a plan view showing the configuration of the first calendar feeding cam 60 and the second calendar feeding cam 70. Here, reference numeral P1 is a rotation center common to the first calendar feeding cam 60 and the second calendar feeding cam 70, reference numeral P2 is a rotation center of the first calendar feeding lever 80, and reference numeral P3 is a second calendar feeding lever. 90 rotation centers. Reference sign K1 represents the rotation locus of the cam contact portion 84 of the first calendar feed lever 80, and reference sign K2 represents the rotation locus of the cam contact portion 94 of the second calendar feed lever 90.

  The first calendar feeding cam 60 has a spiral cam surface from the d1 position to the d3 position, and the first calendar feeding cam 60 rotates counterclockwise as seen in FIGS. The time when the d1 position has been reached on K1 is 0:00 on the first day of the date, and the time when it has reached the d3 position is the position after 24 hours have passed since 0:00 on the 15th. The first calendar feeding cam 60 rotates once in 31 days. Therefore, the rotation angle per day (24 hours) is 360/31 degrees, and the rotation angle from the d1 position to the d3 position is “360 × (15/31)” degrees.

  Further, since the spiral shape of the cam surface of the first calendar feeding cam 60 is a shape in which the radius increases by a certain amount every time it rotates by a certain angle, the distance from the rotation center P1 to the d1 position is L1, and the rotation center P1. Assuming that the distance from the position d3 to the position d3 is L2, the first calendar feeding lever 80 is swung counterclockwise by “(L2−L1) / 15” per day on the rotation locus K1 as viewed in FIG.

  Further, the rotation angle from the d3 position to the d4 position is “360/31” degrees for one day, and if the distance from the rotation center P1 to the d4 position is L3, “L3−L2 = 2 × ((( L2-L1) / 15) ". In other words, during this time, the movement amount (swing amount) of the first calendar feeding lever 80 moves twice as much as the movement amount (swing amount) for each day between the d1 position and the d3 position.

  Further, since the distance from the rotation center P1 between the d4 position and the d5 position of the first calendar feeding cam 60 is L3 and is on a concentric circle, the first calendar feeding lever 80 does not swing during this period. In other words, do not feed the date.

  The state illustrated in FIG. 7 represents a case where the rotation locus K1 intersects the d2 position of the first calendar feeding cam 60. This d2 position is a position rotated by “360 × (15/31)” degrees from the d1 position. Therefore, the d2 position is a position that indicates the second day of the date.

  The second calendar feeding cam 70 has a spiral cam surface from the d6 position to the d7 position, and the second calendar feeding cam 70 rotates counterclockwise as viewed in FIGS. The time when the d6 position has reached on K2 is 0 o'clock on the 16th of the date, and the time when it reaches the d7 position is a position 24 hours after 0 o'clock on the 31st. The second calendar feeding cam 70 also rotates once in 31 days. Therefore, the rotation angle per day (24 hours) is “360/31” degrees, and the rotation angle from the d5 position to the d7 position is “360 × (16/31)” degrees.

  Further, when the distance from the rotation center P1 to the d6 position is L4 and the distance from the rotation center P1 to the d7 position is L5, the second calendar feed lever is “(L5-L4) / 16” per day on the rotation locus K2. 90 is moved (swinged) clockwise as viewed in FIG.

  Further, the rotation angle from the d7 position to the d8 position is “360/31” degrees for one day, and if the distance from the rotation center P1 to the d8 position is L6, “L6−L5 = 2 × ((( L5-L4) / 16) ". That is, during this period, the movement amount (swing amount) of the second calendar feeding lever 90 moves (swings) twice the distance (swing amount) for one day (24 hours) from the d6 position to the d7 position. Move).

  Further, since the distance from the rotation center P1 between the d8 position and the d9 position of the second calendar feeding cam 70 is L6 and is on a concentric circle, the second calendar feeding lever 90 does not swing during this time. In other words, do not feed the date.

  Next, the date feeding operation of the first calendar feeding mechanism and the second calendar feeding mechanism will be described with reference to FIGS. For easy understanding, the first calendar feeding mechanism and the second calendar feeding mechanism are separately illustrated and described. Reference is also made to FIG.

  First, the date feeding operation of the first calendar feeding mechanism will be described.

  FIG. 8 is a plan view showing the first calendar feeding mechanism. As described above, first, the hour wheel 34 to which the hour hand 2 is attached makes one rotation in 12 hours. This rotation is transmitted to the intermediate transmission gear 36. Similarly, the intermediate transmission gear 36 rotates once in 12 hours. The rotation is transmitted to the day / day feeding gear 122 via the intermediate gear 37. The day / day feeding gear 122 is decelerated to rotate once in 24 hours and rotates. The calendar feeding claw 123 that rotates integrally with the day / day feeding gear 122 rotates the calendar feeding gear 50 counterclockwise by one tooth as viewed in FIG. Therefore, the first calendar feeding cam 60 also rotates by one tooth of the calendar feeding gear 50. Since the calendar feed gear 50 has 31 teeth, the calendar feed gear 50 makes one rotation on 31 days (one month).

  Since the position of the calendar feeding gear 50 in the rotational direction is regulated one tooth at a time by the calendar feeding wheel jumper 55, the feed start position of the calendar feeding gear 50 by the calendar feeding claw 123 is always in a fixed relationship.

  In FIG. 8, the cam contact portion 84 of the first calendar feeding lever 80 is urged to the d2 position of the first calendar feeding cam 60 by the elastic force of the spring portion 82, so Represents the position.

  The first calendar feed cam 60 rotates counterclockwise as viewed in FIG. 8 from the d1 position by one day (24 hours), and the d3 position is at the cam contact portion 84 of the first calendar feed lever 80. The time when the rotation locus K1 is reached is the position at 0:00 on the 15th of the date.

  The first calendar feeding lever 80 which is swung by the rotation of the first calendar feeding cam 60 rotates the first calendar wheel 100 meshing with the gear portion 83 in the clockwise direction from 1st to 15th at a time, The date is indicated by the first calendar hand 5. The first calendar wheel 100 regulates the rotational position of each tooth by the first calendar wheel jumper 85, and the indicated position for each day of the date does not fluctuate.

  During the date feeding from the 1st to the 15th of the date, the second calendar pointer 6 must indicate the position where the date is not displayed. This position is set as the second non-designated position, and in the first embodiment (see FIG. 1), the second calendar pointer 6 indicates “00” of the second calendar display scale 11.

  The first calendar feed lever 80 is swung twice as much as the swing amount from the 1st to the 15th during the 24 hours from the d3 position of the first calendar feed cam 60 reaching the rotation locus K1 to the d4 position. The first calendar wheel 100 is rotated for two days. Since the d3 position corresponds to the midnight position on the 15th day of the date, the first undesignated position of the first calendar pointer 5 is set for the 24 hours from the d3 position to the d4 position, and the first calendar pointer 5 is displayed on the first calendar. The scale 10 “0” is indicated. In addition, it does not move from d3 position to d4 position over 24 hours, but the calendar feed gear 50 starts from the time when the calendar feed claw 123 starts feeding the calendar feed gear 50 (usually around 23:00). It takes about 1 hour to reach the top of the jumper 55 (24:00).

  The d5 position of the first calendar feeding cam 60 rotates until it coincides with the rotation locus K1, and at the moment when the rotation locus K1 is exceeded, the cam contact portion 84 and the top portion 60a of the first calendar feeding cam 60 are disengaged, The top 60a is biased to the d1 position. This time is 0:00 of the day.

  Note that a calendar feed wheel jumper 55 is engaged with the calendar feed gear 50. The calendar feed gear 50 is intermittently rotated by one tooth for 24 hours by the calendar feed claw 123, but is almost constant until the tooth portion gets over the top of the calendar feed gear engaging portion 58 of the calendar feed wheel jumper 55. Rotates at speed. Then, at the moment of getting over the top, it is rotated to the next tooth portion engagement position by the elastic force of the calendar feeding wheel jumper 55.

  In synchronism with the rotation of the calendar feeding gear 50, the first calendar feeding cam 60 rotates, the first calendar feeding lever 80 swings, and the first calendar wheel 100 also rotates intermittently.

  Therefore, the first calendar indicator 5 is placed at the center of the first day of the first calendar display scale 10 at the moment when the engagement between the cam contact portion 84 and the top 60a of the first calendar feed cam 60 is released (in FIG. 1). It may be attached to the position indicating (dot display). Actually, the time setting operation is performed by the crown, and the first calendar indicator 5 indicates the day at the moment when the engagement between the cam contact portion 84 and the top portion 60a of the first calendar feeding cam 60 is released. Attach the first calendar pointer 5 as shown.

  Therefore, the first day of the date when the rotation locus K1 coincides with the d1 position, the second day at the d2 position, the 24 hours before the d3 position is the 15th day of the date, and the period from the d4 position to the d5 position is the first period. “0” is displayed as an instruction display.

  The first calendar wheel 100 is engaged with the first calendar wheel engaging portion 87 of the first calendar feeding jumper 85. The 1st calendar feeding jumper 85 is provided in order to rotate the 1st calendar wheel 100 intermittently with good moderation by one tooth. At that time, in order to synchronize with the intermittent rotation of the calendar feeding gear 50, the circumferential position of the first calendar wheel engaging portion 87 can be adjusted.

  Next, the date feeding operation of the second calendar feeding mechanism will be described.

  FIG. 9 is a plan view showing the second calendar feeding mechanism. Since the rotation transmission mechanism from the intermediate transmission gear 36 to the first calendar feeding gear 50 and the configuration and operation of the calendar feeding wheel jumper 55 are the same as those of the first calendar feeding mechanism, description thereof will be omitted. FIG. 9 shows the state of the “00” position as the second non-designated position of the date.

  Although the second calendar feeding cam 70 rotates counterclockwise, the second calendar feeding lever 90 does not swing and the second calendar wheel 110 does not rotate because the second calendar feeding lever 90 is concentric from the d8 position to the d9 position. So the date instructions do not change.

  The second calendar feeding cam 70 rotates until the position d9 coincides with the rotation locus K2, and the engagement between the cam contact portion 94 and the top portion 70a of the second calendar feeding cam 70 is released at the moment when the rotation locus K2 is exceeded. , The top 70a is biased to the d6 position. This time is 0:00 on the 16th of the date.

  As shown in FIG. 9, the second calendar feeding cam 70 rotates counterclockwise from the d6 position by one day (24 hours), and the time when the d7 position reaches the rotation locus K2 is the 31st of the date. This is the 0 o'clock position.

  The second calendar feeding lever 90, which is swung by the rotation of the second calendar feeding cam 70, is viewed from the 16th to 31st in the clockwise direction as viewed in FIG. Rotate minute by minute and indicate the date with the second calendar hand 6. In the second calendar wheel 110, the rotation position of each tooth is regulated by the second calendar wheel jumper 95, so that the indicated position for each day of the date does not fluctuate.

  It should be noted that during the date feeding from the 16th to the 31st of the date, the first calendar pointer 5 must indicate a position where the date is not displayed. This position is set as the first non-instructed position, and in the first embodiment (see FIG. 1), the first calendar pointer 5 indicates “0” of the first calendar display scale 10.

  The second calendar feed lever 90 is moved for one day from the 16th to the 31st during the 24 hours from the d7 position of the second calendar feed cam 70 reaching the rotation locus K2 to the d8 position ( The second calendar wheel 110 is rotated for two days by moving (swinging) a distance twice as large as (swinging amount).

  As described above, the calendar feed gear 50 is intermittently rotated by one tooth for 24 hours by the calendar feed claw 123, but the top of the calendar feed gear engaging portion 58 of the calendar feed wheel jumper 55 is a tooth portion. It rotates at a constant speed until it gets over. Then, at the moment of getting over the top, it is rotated to the next engagement position by the elastic force of the calendar feeding wheel jumper 55.

  In synchronism with the rotation of the calendar feeding gear 50, the second calendar feeding cam 70 rotates intermittently, the second calendar feeding lever 90 swings intermittently, and the second calendar wheel 110 also rotates intermittently. do.

  Therefore, the second calendar pointer 6 is positioned at the center of the second calendar display scale on the 16th day of the second calendar display scale (dots in FIG. 1) at the moment when the engagement between the cam contact portion 94 and the top portion 70a of the second calendar feed cam 70 is released. It may be attached to a position indicating (displayed). Actually, the second calendar indicator 6 is set to 16 at the moment when the crown is operated to adjust the time and the engagement between the cam contact portion 94 and the top portion 70a of the first calendar feeding cam 70 is released. A second calendar pointer 6 is attached to indicate the day.

  The second calendar pointer 6 may be attached so as to indicate the “00” position at the timing when the position d1 of the first calendar feeding cam 60 reaches the rotation locus K1.

  Therefore, when the rotation locus K2 and the d6 position coincide with each other, the date from the 16th of the date, the 24 hours before the d7 position is the 31st of the date, and the period from the d8 position to the d9 position is “00” as the second non-indication display It is displayed.

  Note that the rotation angle of the first calendar wheel 100 that shifts from the 15th day of the date to the “0” position, which is the first non-instructed position, is the normal rotation angle for 2 days, so Consideration is given so as not to misrecognize the “0” position, which is the first non-designated position.

  Also, in the second calendar wheel 110, the rotation angle of the second calendar wheel 110 that shifts from the 31st day of the date to the “00” position, which is the second non-instructed position, shall be a normal two-day rotation angle. Therefore, consideration is given so as not to misrecognize the date indication on the 31st and the “00” position which is the second non-instruction position.

  Therefore, according to the present embodiment, the date indication for the 1st to the 15th and the date indication for the 16th to the 31st in the date display of one month, respectively, Since the two calendar hands 6 are displayed independently, the date can be clearly indicated even when the display area of the dial 9 such as a watch is small.

  In addition, by designating the time and date display with a pointer, a design with a sense of unity and precision can be realized.

  Further, at the same time as the first calendar pointer 5 is turned to the first non-designated position of the date 24 hours after indicating the 15th date, the second calendar pointer 6 indicates the 16th date. At the same time as the second calendar pointer 6 is turned to the second non-designated position of the date 24 hours after indicating the 31st date, the first calendar pointer 5 indicates the first day of the date. Therefore, the 31st day of one month can be instructed continuously even though the configuration has two calendar hands.

  Further, when the date reaches 0:00 on the first day, the first calendar pointer 5 instantaneously indicates one day, and when the date reaches 0:00 on the 16th, the second calendar pointer 6 instantaneously The first calendar pointer 5 and the second calendar pointer 6 can indicate the 16th day, and enable a so-called retrograde display that reciprocates in a substantially fan shape.

  In addition, the first calendar display scale 10 having a substantially fan-shaped arc shape indicating the date from the first day to the 15th indicated by the first calendar pointer 5 and the date from the 16th to the 31st indicated by the second calendar pointer 6 are represented. The substantially calendar-shaped second calendar display scale 11 is disposed at a position facing the second calendar display scale 11 across the rotation axis of the time display pointer. Therefore, the day of the week display and the remaining amount display of the mainspring can be arranged between the first calendar display scale 10 and the second calendar display scale 11, and the design with a sense of unity and precision while enhancing the display function. Can be realized. Note that “opposite” means that the second hand wheel 31 is arranged symmetrically with respect to a line passing through the central axis of the second hand wheel 31 (= the center of the rotation axis of the time indicator hand) and is point symmetric about the central axis of the second hand wheel 31. Including two to be arranged.

  If one month is not the 31st, but the 30th or 28th, the first calendar pointer 5 indicates the first day by operating the crown the day after the last day of the month ends. To be able to. In addition, instead of such an operation using the crown, a button is provided to advance 24 hours at a time, and by operating the button, 24 hours, 48 hours, and 72 hours are advanced, respectively. You may make it display a day.

  The calendar clock 1 and the like according to the embodiment of the present invention have been described above, but the present invention is not limited to the above-described embodiment, and modifications, improvements, and the like within a range in which the object of the present invention can be achieved. Are included in the present invention. For example, in the above-described first embodiment, the first calendar hand 5 is arranged at the 9 o'clock position of the watch, and the second calendar hand 6 is arranged at the 3 o'clock direction. However, these hand positions can be arbitrarily changed. .

  For example, the calendar mechanism and the continuous calculation remaining amount display mechanism can be rotated and arranged at an arbitrary angle with respect to the basic movement 30. Specifically, the second calendar hand 6 is arranged at the 9 o'clock position of the watch, the first calendar hand 5 is placed at the 3 o'clock direction, or the first calendar hand 5 at the 12 o'clock position, The calendar hands 6 may be arranged or vice versa.

  In that case, if each mechanism of the upper part including the 1st machine frame 40 arrange | positioned on the base movement 30 is rotated as it is, it will be realizable. In addition, about the continuous residual amount display mechanism, the above-mentioned arrangement | positioning is enabled by arrange | positioning the gearwheel which transmits rotation suitably between the barrel 160 and the continuous residual amount display wheel 170.

  Further, in the first embodiment and its modification, the 31st day of one month is displayed in two parts, the display from the 1st to the 15th and the display from the 16th to the 31st. If the idea is followed, the 31st day of a month can be divided into three display areas from the 1st to the 10th, the 11th to the 20th, and the 21st to the 31st. In this case, in the calendar display for 31 days, which is one month, the first calendar pointer that indicates the date from the 1st to the 10th, the second calendar pointer that indicates the date from the 11th to the 20th, and the 21st 3rd calendar hand indicating the date from 31st, 1st calendar wheel to which the 1st calendar hand is fixed, 2nd calendar wheel to which the 2nd calendar hand is fixed, and 3rd calendar hand are fixed The first calendar wheel is rotated in conjunction with the rotation of the first calendar feeding cam, the first calendar feeding cam, the second calendar feeding cam, the third calendar feeding cam, and the third calendar feeding cam having a common rotation axis. The first calendar feeding member, the second calendar feeding member that rotates the second calendar wheel in conjunction with the rotation of the second calendar feeding cam, and the third calendar wheel that rotates in conjunction with the rotation of the third calendar feeding cam. And a third calendar feeding member that moves. Similarly, one month can be divided into four or more divided displays, such as a four-divided display or a five-divided display.

  In the first embodiment, the date display is represented by “•” and “alphanumeric characters”, but English display such as “First” and “Second”, and Japanese display such as “one” and “two”. Or may not be shown as numbers, but may be simply “·”. Further, in the first embodiment, the first calendar display scale 10 and the second calendar display scale 11 are substantially fan-shaped arc shapes, but the scale portion for each calendar display has a triangular bilateral shape, Other shapes such as a flat plate cross-sectional shape may be employed. In the first embodiment, the first calendar feeding cam 60 and the second calendar feeding cam 70 have a common center of rotation by being arranged so as to overlap. The feed cam 70 may be a cam arrangement in which the rotation centers are separated without being arranged to overlap.

  DESCRIPTION OF SYMBOLS 1 ... Calendar clock, 2 ... Hour hand, 3 ... Minute hand, 4 ... Second hand, 5 ... First calendar pointer, 6 ... Second calendar pointer, 7 ... Day of week display pointer, 8 ... Continuous remaining amount display pointer, 9 ... Dial, DESCRIPTION OF SYMBOLS 10 ... 1st calendar display scale, 11 ... 2nd calendar display scale, 12 ... Day of the week display scale, 13 ... Continuous remaining capacity display scale, 60 ... 1st calendar feed cam, 70 ... 2nd calendar feed cam, 80 ... 1st Calendar feeding lever (first calendar feeding member), 90 ... Second calendar feeding lever (second calendar feeding member), 100 ... First calendar wheel, 110 ... Second calendar wheel

Claims (5)

Of the calendar display for 31 days that is one month, a first calendar pointer that indicates the date from the 1st to the 15th, a second calendar pointer that indicates the date from the 16th to the 31st,
A first calendar wheel to which the first calendar pointer is fixed;
A second calendar wheel to which the second calendar pointer is fixed;
A first calendar feed cam and a second calendar feed cam each having a center of rotation;
A first calendar feeding member that rotates the first calendar wheel in conjunction with rotation of the first calendar feeding cam;
A second calendar feeding member that rotates the second calendar wheel in conjunction with rotation of the second calendar feeding cam;
A calendar clock characterized by comprising: The calendar clock according to claim 1,
At the same time as the first calendar pointer is rotated to the first non-designated position, which is a position not showing the date, 24 hours after the 15th date of the date is designated by the first calendar wheel feeding member, The two calendar hands indicate the 16th day of the date by the second calendar feeding member,
The second calendar pointer is a position that does not indicate a date 24 hours after the 31st date of the date is indicated by the second calendar wheel feeding member, and is in a position different from the first undesignated position. A calendar clock characterized in that, simultaneously with the rotation to the designated position, the first calendar pointer indicates one day of the date by the first calendar feeding member. In the calendar clock according to claim 1 or 2,
When the second calendar pointer reaches the second unindicated position, the top of the first calendar feed cam is disengaged from the first calendar feed member, and the first calendar pointer is set to 1 It is rotated instantaneously to the position indicating the day,
When the first calendar pointer reaches the first non-instructed position, the top of the second calendar feed cam is disengaged from the second calendar feed member, and the second calendar pointer is set to date 16. A calendar clock that is instantaneously rotated to a position indicating the day. The calendar clock according to claim 1,
A first calendar display scale having a substantially fan-shaped arc shape representing a date from 1st to 15th indicated by the first calendar pointer;
A second calendar display scale having a substantially fan-shaped arc shape representing a date from 16th to 31st indicated by the second calendar pointer;
A calendar clock characterized by further comprising: The calendar clock according to claim 4,
A calendar clock, wherein the first calendar display scale and the second calendar display scale are arranged at positions facing each other across a rotation axis of a time display hand.

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