JP2020106515A - Timepiece - Google Patents

Abstract

To provide a timepiece that is excellent in visibility of time, suppressed in overall thickness, and facilitates positioning of a dial plate and a facing member.SOLUTION: A timepiece includes: a pointer 5 composed of an hour hand 5h, a minute hand 5m and a second hand 5s; a movement 10 for driving the pointer 5; a first dial plate 20; an annular first facing member 30 that has an upper side projection 38 provided on an upper side and a lower side projection 37 provided on a lower side, being disposed on the first dial plate 20, and being positioned with respect to the first dial plate 20 by the lower side projection 37; and a transparent second dial plate 40 that is disposed on the first facing member 30 and being positioned with respect to the first facing member 30 by the upper side projection 38. One of the pointers 5 is disposed between the first dial plate 20 and the second dial plate 40, and remainder of the pointers 5 are disposed above the second dial plate 40.SELECTED DRAWING: Figure 13

Description

The present invention relates to a timepiece.

Patent Document 1 discloses an upper dial having an opening at a predetermined position, a pointer for moving a needle above the upper dial, a lower dial arranged at a lower position of the upper dial, and a lower dial. And a top dial and a parting frame member provided at a position corresponding to the position of the opening in the top dial, and a sub needle member movably provided in the parting frame member, There is described a dial including a position restricting portion for positioning the parting frame member with respect to the lower dial by the member and the lower dial.

Patent Document 2 discloses a dial assembly that is housed in a case of a timepiece, which includes a ring member, a first dial, a ring-shaped spacer, and a second dial in order, and a first and a second dial. It is described that the second dial, the spacer, and the movement are provided with regulation means for regulating the positional relationship among the movement.

Patent No. 4595977 Japanese Patent No. 5853504

Multi-function clocks need to display a variety of information, but if characters or indexes (indexes) that correspond to individual information are placed on the dial, the display surface of the dial becomes complicated and the time visibility is improved. descend. Therefore, a transparent second dial is provided above the dial so that the hour (character) relating to the time is particularly conspicuous, and the hour is placed there, and the annular dial member supports the second dial. It is possible to do it. If the second dial and the dial member are made into an integral part, the manufacturing process of the component becomes complicated. Therefore, it is desirable to separate them. In this case, the second dial and the dial member can be reliably positioned and fixed to the dial member. There is a need to. Further, if the dial plate is provided in double, the entire timepiece becomes thicker by that amount, so it is necessary to devise a device for thinning the timepiece.

An object of the present invention is to provide a timepiece having excellent time visibility, a reduced overall thickness, and easy positioning of a dial and a dial member.

It has a pointer composed of an hour hand, a minute hand and a second hand, a movement for driving the pointer, a first dial, an upper surface side convex portion provided on the upper surface and a lower surface side convex portion provided on the lower surface, An annular first facing member arranged on the first dial and positioned with respect to the first dial by the lower surface side convex portion, and arranged on the first facing member, and by the upper surface side convex portion A transparent second dial positioned with respect to the dial member, one of the pointers is arranged between the first dial and the second dial, and the rest of the pointer is above the second dial. A timepiece is provided that is characterized by being arranged.

It is preferable that the hour hand is arranged between the first dial and the second dial, and the minute hand and the second hand are arranged above the second dial. It is preferable that the first dial is positioned with respect to the movement by the concave-convex fitting.

The above timepiece further includes an annular second dial member arranged at a position overlapping the upper surface side convex portion on the second dial in the thickness direction and positioned with respect to the second dial by concave and convex fitting. It is preferable.

In the above timepiece, the inner peripheral surface is in contact with the outer peripheral surface of the second dial member, the first scale is formed on the upper surface, and the annular third dial member in which the gear is formed in the circumferential direction is fitted to the gear. And a crown for rotating the third dial member when operated by the user, and a second scale functioning as a rotation calculation scale in combination with the first scale is formed on the upper surface of the second dial member. Is preferably provided.

The above timepiece further has a small pointer for displaying information different from the time displayed by the pointer, and the small pointer is driven by the movement and has a thickness between the first dial and the second dial. It is preferable that they are arranged at different positions in the direction.

It is preferable that an opening is provided in the center of the second dial so that the pointer can be visually recognized from above the second dial through the opening.

An index for displaying the time is provided on the second dial, and the index is preferably made of a mixture of resin and decorative particles. The decorative particles are preferably a luminescent inorganic compound.

The above timepiece has excellent visibility of time, the overall thickness is suppressed, and the dial and the dial member can be easily positioned.

3 is a top view of the timepiece 1. FIG. 3 is a sectional view of the timepiece 1. FIG. 3 is a sectional view of the timepiece 1. FIG. 3 is a schematic top view of the movement 10. FIG. It is a top view of the 1st dial 20. It is a top view and a sectional view of the 1st end facing 30. It is a back view and a perspective view of the 1st end facing 30. It is a top view of the 2nd dial 40 and a sectional view of index 41. It is a top view, a sectional view, and a back view of the 2nd end facing 50. It is a figure which shows the scales 52 and 54 of the 2nd end facing 50. It is a top view and sectional drawing of the rotary end piece 60. It is a figure which shows the rotary dial 60 and the scales 66 and 67 of another rotary dial. FIG. 5 is a schematic cross-sectional view for explaining the connection relationship between the movement 10, the first dial 20, the first dial 30, the second dial 40, and the second dial 50.

Hereinafter, the timepiece will be described with reference to the drawings. However, it should be understood that the invention is not limited to the drawings or the embodiments described below.

1 is a top view of the timepiece 1, and FIGS. 2 and 3 are sectional views of the timepiece 1. 2 and 3 show cross sections of the timepiece 1 taken along the lines II-II and III-III of FIG. 1, respectively. The watch 1 has, as main components, a pointer 5, a solar cell 9, a movement 10, a first dial 20, a first dial 30, a second dial 40, a second dial 50, a rotary dial 60, an outer case 70, a back. It has a lid 75, a bezel 80 and a windshield 90. The first end piece 30, the second end piece 50, and the rotary end piece 60 are annular members (end piece members) referred to as an end piece ring, but will be simply referred to as “end piece” below for simplicity. As shown in FIG. 1, a first crown 71, a second crown 72, and operation buttons 73, 74 are arranged at the 3 o'clock, 8 o'clock, 2 o'clock, and 4 o'clock positions on the side surface of the outer case 70, respectively. ..

The watch 1 is a model especially designed for aircraft pilots. As shown in Fig. 1, the ground-to-air visible signal (GROUND-AIR VISUAL SIGNAL CODE) is displayed on the upper surface of the cylindrical bezel 80. The character string shown is printed. As this character string, "I-REQUIRE DOCTOR" (requires a doctor), "II-REQUIRE MEDICAL SUPPLIES" (requires medical supplies), "F-REQUIRE FOOD AND WATER" (requires food and water), "Y -Yes", "N-No", "LL-All WELL", "X-UNABLE TO PROCEED" and "K-INDICATE DIRECTION TO PROCEED" The direction is shown) in order from the 12 o'clock position in the clockwise direction.

On the upper surfaces of the rotary dial 60 arranged inside the bezel 80 and the second dial 50 arranged inside thereof, a scale functioning as an aviation slide rule (rotation slide rule) is formed. The scale of the rotary dial 60 is rotated by the user turning the second crown 72. The aviation slide rule will be described later with reference to FIGS. 10 and 12A.

The pointer 5 includes an hour hand 5h, a minute hand 5m, and a second hand 5s, and rotates clockwise about a rotation shaft 19 provided at the center of the first dial 20 to set the current time (hour, minute, second). indicate. The pointer 5 may have a substantially rod shape, and can be appropriately changed according to the design of the timepiece.

As shown in FIG. 1, the timepiece 1 includes a first display unit 110, a second display unit 120, and a third display unit at positions of 3 o'clock, 6 o'clock, 9 o'clock, and 4:30 on the first dial 20. It has 130 and the 4th display part 140. These display portions are arranged closer to the center of the first dial 20 than the scales of the aviation slide scale (more accurately, the first dial 30, the second dial 50, and the rotary dial 60).

The first display unit 110 displays the mode of the timepiece 1 with the disc hand 111. Character strings (marks) of "CHR", "TME", "UTC", "SET", "LLI", and "ALM" are printed on the upper surface of the disc needle 111 at intervals of 60 degrees. These marks correspond to the functions of the chronograph (stopwatch), the normal time display, the Coordinated Universal Time display, the setting change such as time adjustment, the light intensity display of the clock, and the alarm setting, in order. When the user pulls the first crown 71 outward and rotates it, the disc needle 111 rotates about a rotation shaft provided in the center of the first display unit 110. In the timepiece 1, the triangular hour character at the 3 o'clock position also serves as the index of the first display unit 110, and when the mark corresponding to the mode that the user wants to switch is aligned with the 3 o'clock position, the mark is displayed. The corresponding function is executed.

The second display unit 120 displays, for example, the current time (local time) in another city having a time difference from the city in which the user is located by the small hands 121 and 122. The small pointer 121 is a minute hand, and the small pointer 122 is an hour hand, which rotate clockwise about a rotation shaft 19a (see FIG. 2) provided at the center of the second display unit 120. Since the time is displayed on the second display section 120 for 24 hours, the positions of 6 o'clock and 12 o'clock of a normal clock correspond to 12 o'clock and 24 o'clock respectively, and the small hands 122 display the inside of the second display section 120 for 24 hours. Make one rotation.

The third display unit 130 displays the information on the daylight saving time ON/OFF, the day of the week, and the charge amount of the battery (the secondary battery 17 in FIG. 4 described later) with the disc needle 131. On the upper surface of the disc needle 131, the letters "ON" and "OFF" of summer time, "S" (Sunday), ..., "T" (Tuesday), ..., "T" (Thursday), ..., "S" (Saturday) characters, and scales of "F" (maximum) to "E" (minimum) indicating the charge amount are sequentially formed in the circumferential direction. For example, when the user pulls the first crown 71 outward and presses the operation button 73 or 74, the disc needle 131 rotates about a rotation axis provided in the center of the third display unit 130. In the timepiece 1, the triangular hour-shaped character at the 9 o'clock position and the triangular-shaped mark (mark 44 in FIG. 8A described later) facing it correspond to the index of the third display unit 130.

When the disk hand 131 displays the day of the week, the character corresponding to the current day of the week is 9 out of "S", ..., "T", ..., "T", ..., "S". Placed at the hour position. When displaying the summer time, for example, when the user pulls the first crown 71 outward and presses the operation button 73 or 74, the letters "ON" and "OFF" alternate at the 9 o'clock position each time the button is pressed. Rotate. The hands 5 display summer time when "ON" is set at the 9 o'clock position, and display standard time when "OFF" is set at the 9 o'clock position. When the user wants to display the charge amount, for example, if the user presses the operation button 73 or 74 without pulling the first crown 71 to the outside, the scale corresponding to the charge amount out of “F” to “E” is 9 o'clock. Rotate to position.

The 4th display part 140 is a window part for displaying a date, and displays one of the numbers written on the date plate (not shown). The date plate is a disc-shaped member in which numbers “1” to “31” are sequentially written in the circumferential direction, is arranged below the first dial 20, and rotates once in one month. In the illustrated example, “7” indicating that it is 7 days is displayed on the fourth display unit 140.

FIG. 4 is a schematic top view of the movement 10. The movement 10 is a drive mechanism of the timepiece 1 including mechanical parts and electrical parts, and drives the rotary shafts 19 and 19a of the pointer 5 and the small hands 121 and 122. The movement 10 includes a circular frame 11 arranged on the case back 75 side in the outer case 70, and motors 12a to 12d, wheel trains 13a to 13d, an antenna 14, clock control ICs 15a and 15b arranged inside the circular frame 11. It has parts such as the communication control IC 16 and the secondary battery 17. On the circumference of the frame body 11, four convex portions 18 that fit into the groove portion (the groove portion 27 of FIG. 5 described later) of the first dial 20 are formed at intervals of approximately 90 degrees.

The motors 12a to 12d are step motors that drive the pointer 5, the small hands 121 and 122, and the disc needle 131. The motor 12a rotates the hour hand 5h and the minute hand 5m in conjunction with each other, and the motor 12b rotates the small hands 121 and 122 in conjunction with each other. The motor 12c rotates the second hand 5s and the motor 12d rotates the disk hand 131, respectively. The wheel train 13a is a gear train that connects the first crown 71 and the rotation shaft of the disc needle 111. The train wheel 13b connects the rotary shafts 19a of the small hands 121 and 122 and the motor 12b, the train wheel 13c connects the rotary shafts 19 of the pointer 5 and the motors 12a and 12c, and the train wheel 13d connects the disc needle 131. It is a gear train that connects the rotating shaft and the motor 12d. Unlike the illustrated configuration, all pointers may rotate independently of each other by separate motors.

The antenna 14 is a rectangular member that is arranged so as to cover the periphery of the 12 o'clock position in the frame body 11 in a planar manner, and the rectangular antenna electrode 14a is used for GPS (Global Positioning System) or the like. Receive satellite, standard or other radio waves. The clock control ICs 15a and 15b are electronic components for controlling the driving of the hands 5 and the like by the motors 12a to 12d, and the communication control IC 16 controls the reception operation by the antenna 14 and processes the received signals. It is an electronic component. These ICs are mounted on a circuit board (not shown) arranged in the frame 11. The timepiece 1 is a radio-controlled timepiece capable of receiving time information by the antenna 14 and setting the current time. However, the antenna 14 and the communication control IC 16 are not essential parts, and may not have a radio wave reception function (communication function). ..

The secondary battery 17 is a battery that can be charged by the solar cell 9 arranged between the first dial 20 and the movement 10, and supplies electric power to the motors 12a to 12d, the timepiece control ICs 15a and 15b, and the communication control IC 16. Since the secondary battery 17 is arranged so as to overlap the motors 12a to 12c, the train wheel 13b and 13c, and the timepiece control ICs 15a and 15b in the thickness direction of the timepiece 1, its position is shown by a broken line in FIG. As the power source of the timepiece 1, a primary battery may be used instead of the secondary battery 17, and in this case, the solar cell 9 may be omitted.

FIG. 5 is a top view of the first dial plate 20. The first dial plate 20 is a substantially disc-shaped member arranged on the movement 10 (and the solar cell 9) in the outer case 70 so that the light incident through the windshield 90 reaches the lower solar cell 9. In addition, it is made of a translucent material. The first dial plate 20 corresponds to the first display unit 110, the second display unit 120, the third display unit 130, and the fourth display unit 140, and at the upper surface at 3 o'clock, 6 o'clock, 9 o'clock, and 4:30. The position has a first display area 21, a second display area 22, a third display area 23, and a fourth display area 24.

The first display area 21, the second display area 22, and the third display area 23 are all circular, and the rotation axes of the disc needle 111, the small hands 121 and 122, and the disc needle 131 pass through the respective centers. Shaft holes 21a, 22a, 23a are provided. The fourth display area 24 is a rectangular opening. A shaft hole 26 through which the rotary shaft 19 of the pointer 5 passes is provided at the center of the first dial 20.

In the first display area 21, a striped pattern 21b for emphasizing and showing the mark of the currently selected mode in a fan-shaped area having a central angle of about 60 degrees in the 3 o'clock direction centered on the shaft hole 21a. Are formed, and a similar pattern is formed in the entire third display area 23. In the second display area 22, the characters “4”, “AM”, “8”, “12”, “16”, “PM”, “20” and “24” are written on the circumference and outside thereof. 24 graduations and 60 graduations are formed at equal intervals on the double circumference in FIG. In the timepiece 1, the disc hands 111 and 131 are transparent discs, and the striped pattern of the first display region 21 and the third display region 23 is passed from above (the windshield 90 side) through the disc hands 111 and 131. Although visible, this pattern need not be present and the disc needles 111, 131 may be opaque.

On the upper side (12 o'clock side) of the first dial 20, “RX-TME” (acquisition of time information), “NO” (on the arc having a central angle of about 120 degrees, as an index 25 for reception of satellite radio waves. Character strings of "reception failure", "OK" (reception success) and "RX-GPS" (acquisition of position information) are printed. When displaying the information regarding reception, the pointer 5 indicates any of these indicators 25 to notify the user of the corresponding information.

The outer peripheral portion of the first dial 20 is provided with unevenness in the radial direction within the surface of the first dial 20, and the first dial 20 has a total of eight groove portions due to the unevenness. These groove portions are arranged bilaterally asymmetrically with respect to the center line connecting the directions of 12:00 and 6 o'clock so that the front and back of the first dial 20 can be seen only by the uneven shape. Of these, the four groove portions indicated by reference numeral 27 are fitted into the four convex portions 18 of the movement 10, respectively. That is, the first dial plate 20 is positioned with respect to the movement 10 by the concave and convex fitting. Four convex portions of the first dial 30 (convex portions 37 of FIG. 7A described later) are fitted into the other four groove portions indicated by the reference numeral 28, respectively.

6(A) to 6(E) are a top view and a cross-sectional view of the first facing member 30. 7A and 7B are a back view and a perspective view of the first facing member 30. 6(B) to 6(E), the cross section of the first facing 30 along the VIB-VIB line, the VIC-VIC line, the VID-VID line, and the VIE-VIE line of FIG. 6(A), respectively. Showing.

The first dial 30 is arranged on the outer periphery of the first dial 20 and fills the decorative role of the timepiece 1 and the space between the first dial 20 and the second dial 40 above and the second character 30. It is an annular dial ring (an example of a first dial member) that also serves as a spacer that supports the plate 40. The first end piece 30 corresponds to the first display section 110, the second display section 120, and the third display section 130, and is located at the 3 o'clock, 6 o'clock, and 9 o'clock positions. 32 and a third protrusion 33. On the center side of the first dial 30 in these protrusions, a semicircular inclined surface is formed along the circular first display area 21, the second display area 22, and the third display area 23 of the first dial 20. 31a, 32a, 33a are formed. As shown in FIG. 6(B), these inclined surfaces are highest on the outer peripheral side and lower toward the center side.

An area indicated by reference numeral 34 on the center side of the first dial 30 is an opening, and the first display section 110, the second display section 120, the third display section 130, the fourth display section 140, and the rotating shaft 19 are provided inside the area. Will be placed. An inclined surface 36 similar to the inclined surfaces 31a, 32a, 33a is also formed in a portion other than the first protruding portion 31, the second protruding portion 32, and the third protruding portion 33 at the inner end of the opening 34. Further, a substantially rectangular groove portion corresponding to the fourth display portion 140 is formed at a position of 4:30 on the inner peripheral surface of the first dial 30.

The first facing member 30 has an annular outer peripheral portion 35 whose upper surface and lower surface are both flat (parallel to each other). Four convex portions 37 are formed on the lower surface of the outer peripheral portion 35, and four convex portions 38 are formed on the upper surface thereof at intervals of approximately 90 degrees. The convex portion 37 and the convex portion 38 may be arranged so as to overlap at the same position in the circumferential direction, but they are arranged so as to be displaced from each other at different positions in the first dial 30. In order to understand the positional relationship between the two, the position of the convex portion 37 on the lower surface side is also indicated by a broken line in the top view of FIG. The convex portion 37 is an example of the lower surface side convex portion, and is fitted into the groove portion 28 of the first dial 20. That is, the first dial 30 is positioned with respect to the first dial 20 by the convex portion 37. The convex portion 38 is an example of a convex portion on the upper surface side, and is fitted into a groove portion (a groove portion 47 of FIG. 8A described later) of the second dial 40.

FIGS. 8A and 8B are a top view of the second dial 40 and a cross-sectional view of the index 41. The second dial 40 is a transparent plate material arranged above the first dial 20 via the first dial 30, and the outer peripheral portion of the second dial 40 is the upper surface of the outer peripheral portion 35 of the first dial 30. By covering the first dial plate 20, almost the entire first dial plate 20 is covered. The second dial 40 has 12 indexes 41, a city display 42, a time difference display 43, a mark 44, an opening 45, and a scale 46.

For the second dial 40, a colored member or a member provided with a colored layer can be used as long as the first dial 20 is transparent enough to be visually recognized. For example, by coloring the second dial 40 with a light blue image of the sky or a light orange image of the sunset, it is further emphasized that the watch 1 is a model designed for aircraft pilots. The visual effect can be added.

The indexes 41 are time display figures (hour characters, indexes) arranged at equal intervals on the circumference on the outer peripheral side of the second dial 40. Each index 41 has, for example, a three-layer structure of a luminescent paint 41a, a resin film 41b and an adhesive layer (adhesive layer) 41c as shown in FIG. 8B, and the luminescent paint 41a is applied on the resin film 41b. It is formed by adhering the formed product to the upper surface of the second dial 40 with the adhesive layer 41c. In the illustrated example, of the 12 indicators 41, the one at 12 o'clock is the largest, the one at 1 o'clock, 5 o'clock, 7 o'clock, and 11 o'clock is the next largest, and the others are even smaller. The indices 41 at 3 o'clock and 9 o'clock have a substantially triangular shape (pointed trapezoid), but the other indices 41 are rectangular or a trapezoid close thereto. In this way, the indices may be different from each other in size, shape, radial position, and the like. Further, instead of the index 41, letters, numbers, symbols or protrusions may be formed on the second dial 40.

The luminescent paint 41a is, for example, a mixture of resin with decorative particles which are a luminescent inorganic compound such as a strontium aluminate phosphor and zinc sulfide, and has a property of storing light and emitting light in a dark place at night. The index 41 is not limited to the above three-layer structure, and the luminous paint 41a may be directly printed on the second dial 40. Alternatively, as the index 41, in addition to the luminescent paint, a granular material having reflectivity or gloss or a mixture of resin with decorative particles such as a coloring pigment may be used.

In a conventional timepiece, the time visibility is ensured by prominently arranging indexes (hour characters) related to the time. However, in the case of a radio-controlled timepiece, if the time characters are arranged so as to be conspicuously large, reception of radio waves is likely to be hindered thereby, and reception sensitivity may be reduced. In the timepiece 1, since the index 41 is formed on the second dial plate 40 which is arranged above the first dial plate 20 at a distance from each other, the index 41 is formed as compared with the case where the hour character is formed on the first dial plate 20. It is possible to prevent a decrease in sensitivity. Further, in the timepiece 1, as can be seen from FIG. 2, FIG. 4 and FIG. 8A, the index 41 at the 12 o'clock position is arranged directly above the antenna 14, but the material of the index 41 is resin and decoration. Since it is a mixture with particles, reception of radio waves is not hindered by the index 41.

The city display 42 is an array of abbreviated names of a plurality of cities or regions arranged in the circumferential direction in an order corresponding to the time difference based on the universal standard time. The abbreviation of each city or region is represented by three letters of the alphabet, and these character strings are arranged between the twelve markers 41 and the markers 41 on the same circumference. The time difference display 43 is a number of “−12” to “+14” indicating the time difference of the world standard time for each city or area included in the city display 42, and is arranged in the upper or lower abbreviation of each city or area. ing. The 2nd display part 120 of FIG. 1 displays the present time in another city which is a city or area contained in the city display 42, for example, and has a time difference with the time which the hand 5 displays.

The mark 44 is a triangular mark facing the index 41 at the 9 o'clock position and corresponds to the index of the third display unit 130 in FIG. The opening 45 is located at the 6 o'clock side centered on the center of the second dial 40 and has a relatively large diameter, and is also located on the 12 o'clock side centered at the center of the second dial 40. It has a shape in combination with a semicircle having a relatively small diameter. The graduations 46 are formed along the semicircle on the 12:00 side of the opening 45, and indicate the amount of power generation of the solar cell 9 when the timepiece 1 is in the "LLI" (light quantity display of timepiece) mode. This is for indicating with the guideline 5. On the scale 46, the 9 o'clock position represents the minimum power generation amount, and the 3 o'clock position represents the maximum power generation amount.

As shown in FIGS. 2 and 3, in the timepiece 1, the hour hand 5h is arranged below the second dial 40 (between the first dial 20). Since the transparent dial has a certain reflectance even if it is transparent, if the pointer is arranged on the lower side of the transparent dial as described above, the visibility of the pointer may be deteriorated. In addition, if the dial plates are arranged in double, a part of the incident light to the solar cell may be blocked by them and the charging efficiency may be lowered. However, in the timepiece 1, since the second dial 40 has the opening 45, the visibility of the hour hand 5h does not decrease due to the second dial 40, and the charging efficiency decreases as compared with the case without the opening 45. Is also suppressed.

On the outer peripheral portion of the second dial 40, ten groove portions that are recessed toward the center side are formed. In FIG. 8A, reference numerals 47 and 48 denote eight of these groove portions, excluding the two formed at the 2 o'clock and 4 o'clock positions. Of these, the four groove portions indicated by the reference numeral 47 are respectively fitted to the four convex portions 38 of the first dial 30. That is, the second dial 40 is positioned with respect to the first dial 30 by the convex portion 38. The four convex portions of the second dial 50 (the convex portions 56 of FIGS. 9A to 9C described later) are fitted into the remaining four groove portions indicated by the reference numeral 48, respectively.

9(A) to 9(C) are a top view, a cross-sectional view, and a back view of the second dial 50. FIG. 9B shows a cross section of the second facing member 50 along the line IXB-IXB in FIG. 9A. The second dial 50 is arranged on the outer periphery of the second dial 40, and has an annular dial ring (which serves as a decorative member of the timepiece 1 and one of the scales constituting the aviation slide rule) (of the second dial member). An example). The second dial 50 has a circular opening 55 in the center, and the index 41, the city display 42, the time difference display 43, the mark 44, the opening 45, and the scale 46 are arranged inside the circular opening 55. Inclined surfaces 51 and 53 having different inclination angles are formed on the outer peripheral side and the inner peripheral side of the second dial 50, respectively. The inclination angle with respect to the horizontal direction (lateral direction in FIG. 9B) of the inclined surface 53 is larger than that of the inclined surface 51, and the thickness (width in the horizontal direction) of the frame of the second dial 50 is the portion of the inclined surface 53. The area of the inclined surface 51 is larger than that.

As shown in FIG. 9C, four convex portions 56 that fit into the groove portions 48 of the second dial 40 are formed on the lower surface of the second dial 50 at intervals of 90 degrees. That is, the second dial 50 is positioned with respect to the second dial plate 40 by the concave and convex fitting. Also in the top view of FIG. 9A, the position of the convex portion 56 is indicated by a broken line.

The second dial 50 is arranged at a position overlapping the groove portions 47, 48 on the second dial 40 and the convex portion 56 fitted in the groove portion 48 in the thickness direction. It is preferable from the viewpoint of design that the second dial 50 is made of an opaque material and that such grooves and protrusions are covered so as not to be seen from the windshield 90 side so that the aesthetic appearance of the timepiece 1 is improved. However, the groove 48 is provided only on the lower surface side of the second dial 40 in the thickness direction, and the outer peripheral portion of the second dial 40 is made opaque. For example, the first dial 30 and the second dial 40 are fitted together. If it is not necessary to hide the portion, the second end piece 50 may be omitted.

FIG. 10 is a diagram showing the scales 52 and 54 of the second dial 50. Scales 52 and 54 shown in FIG. 10 are formed on the inclined surfaces 51 and 53 of the second dial 50, respectively. Numbers "10" to "90" are also printed on the inclined surface 51 on the outer peripheral side. The scales 52 and 54 are an example of a second scale, and function as an aviation slide rule (rotation slide rule) in combination with the scale of the rotary dial 60 described below. In FIG. 9A, the scales 52 and 54 are omitted so that the shape of the second dial 50 can be seen.

11A to 11C are a top view and a cross-sectional view of the rotary dial 60. 11B and 11C show cross sections of the rotary dial 60 along the line XIB-XIB and the line XIC-XIC in FIG. 11A, respectively. The rotary dial 60 is an annular member (an example of a third dial member) having a circular opening 65, and is also called an indicator ring. The rotary dial 60 is arranged between the second dial 50 and the bezel 80 and on the outer case 70 so that the inner peripheral surface thereof contacts the outer peripheral surface of the second dial 50 (see FIGS. 2 and 3 ). ). As shown in FIG. 11(B), the vertical cross section of the rotary dial 60 has a substantially "C" shape in which a horizontal portion 61 and a vertical portion 62 are connected to each other, and an outer periphery of a joint portion between them. On the side, a concave portion 64 for accommodating the convex portion of the bezel 80 is formed. The upper surface of the horizontal portion 61 is an inclined surface 61a whose center side is lower than the outer peripheral side of the rotary dial 60.

A gear 63 shown in FIG. 11C is formed on the lower end of the vertical portion 62 over the entire circumference of the rotary dial 60. In FIG. 11C, the left side corresponds to the lower side of the rotary dial 60 (movement 10 side), and the right side corresponds to the upper side of the rotary dial 60 (windshield 90 side). The gear 63 is fitted to the second crown 72, and the rotary dial 60 rotates in the circumferential direction around the second dial 50 when the user turns the second crown 72.

FIG. 12A is a diagram showing the scale 66 of the rotary dial 60. A scale 66 shown in FIG. 12A is formed on the inclined surface 61a of the rotary dial 60, and numbers "10" to "90" are also printed. The scale 66 is an example of the first scale and corresponds to the other scale that constitutes the aviation slide rule (rotation slide rule). In FIG. 11A, the scale 66 is omitted so that the shape of the rotary dial 60 can be seen. The aviation slide rule is a simple calculation by appropriately rotating the scale 66 (outer scale) of the rotary dial 60 with respect to the scales 52 and 54 (inner scale) of the second dial 50. The scales 52, 54, 66 are arranged immediately below the windshield 90, and are located closest to the eyes of the user inside the timepiece 1, so that they are easy for the user to see.

FIG. 12(B) is a diagram showing another scale 67 of the rotary dial. The scale 67 differs from the scale 66 of FIG. 12A only in that the lining of the scale portion other than the numbers is painted in white, and the arrangement itself is the same as the scale 66. Depending on the design of the timepiece, a scale 67 may be formed on the inclined surface 61a of the rotary dial 60 instead of the scale 66.

13(A) and 13(B) are schematic cross-sectional views for explaining the connection relationship between the movement 10, the first dial 20, the first dial 30, the second dial 40, and the second dial 50. Is. FIG. 13A shows a state in which these members are combined, and FIG. 13B shows a state in which the members are vertically separated so that the connection relationship can be seen. As shown in FIG. 13A, the movement 10, the first dial 20, the first dial 30, the second dial 40, and the second dial 50 have substantially the same outer diameter.

As described above, the protrusion 18 of the movement 10 is fitted in the groove 27 of the first dial 20, and the protrusion 37 on the lower surface side of the first dial 30 is fitted in the groove 28 of the first dial 20, respectively. The convex portion 38 on the upper surface side of the first dial 30 is fitted in the groove portion 47 of the second dial 40, and the convex portion 56 of the second dial 50 is fitted in the groove portion 48 of the second dial 40. In this way, by providing the convex portions 37 and 38 on the upper and lower surfaces of the first dial 30 and fitting them to the first dial plate 20 and the second dial plate 40, each of the second dial plate 40 and the like. The positions of the members can be easily adjusted.

However, a part or all of the convex portions 18, 37, 38, 56 may not penetrate the first dial plate 20 or the second dial plate 40 in the thickness direction. In this case, for example, the groove portion 27 of the first dial 20 may be opened only on the lower surface side, and the groove portion 28 may be opened only on the upper surface side. Further, some or all of the groove portions 27, 28, 47, 48 may not be opened to the outer peripheral side of the first dial plate 20 or the second dial plate 40, and are formed inside the dial plate in the radial direction. It may be an opening. On the contrary to the above-described embodiment, for example, a convex portion is formed on the first dial plate 20, a groove portion is formed on the first dial 30, or a convex portion is formed on the second dial plate 40 and a groove portion is formed on the second dial 50. May be formed respectively, and the members may be fitted to each other by concavity and convexity.

As shown in FIG. 13(A), in the timepiece 1, of the hands 5, the hour hand 5h is arranged between the first dial 20 and the second dial 40, and the minute hand 5m and the second hand 5s are the second letters. It is arranged on the upper side of the plate 40 (between the second dial 40 and the windshield 90). Further, as shown in FIG. 2, the small hands 121 (and the small hands 122) of the second display section 120 are also arranged between the first dial 20 and the second dial 40, and the hour hand 5h and the small hands 121, 122 are provided. Are arranged at different positions in the thickness direction between the dials so that they do not contact each other. Unlike the illustrated form, the minute hand 5m or the second hand 5s may be arranged between the first dial plate 20 and the second dial plate 40, and the remaining pointer 5 may be arranged above the second dial plate 40. Alternatively, for example, two of the pointers 5 such as the hour hand 5h and the minute hand 5m may be arranged between the first dial 20 and the second dial 40, and the remaining pointers 5 may be arranged above the second dial 40. Good.

In this way, by dividing the positions of the three hands 5 in the thickness direction above and below the second dial 40, the entire timepiece can be compared with the case where the three hands 5 are arranged on the second dial 40. Since the dial can be three-dimensionally expressed while reducing the thickness of the watch, the aesthetic appearance of the timepiece 1 is improved. Further, in the timepiece 1, the visibility of the hands 5 (that is, the time) is higher than that in the case where the three hands 5 are arranged between the first dial 20 and the second dial 40.

1 Watch 5 Pointer 10 Movement 18, 37, 38, 56 Convex part 20 1st dial 27, 28, 47, 48 Groove 30 First dial 40 Second dial 50 Second dial 60 Rotating dial 70 Exterior case 75 Back cover 80 Bezel 90 Windshield

Claims (9)

A pointer consisting of an hour hand, a minute hand and a second hand,
A movement for driving the pointer,
The first dial,
It has an upper surface side convex portion provided on the upper surface and a lower surface side convex portion provided on the lower surface, and is arranged on the first dial, and is positioned with respect to the first dial by the lower surface side convex portion. A ring-shaped first facing member,
A transparent second dial arranged on the first facing member and positioned with respect to the first facing member by the upper surface side convex portion,
A timepiece characterized in that any one of the hands is arranged between the first dial and the second dial, and the rest of the hands is arranged above the second dial. The timepiece according to claim 1, wherein the hour hand is arranged between the first dial and the second dial, and the minute hand and the second hand are arranged above the second dial. The timepiece according to claim 1 or 2, wherein the first dial is positioned with respect to the movement by concave and convex fitting. A second annular dial facing member, which is arranged at a position overlapping the upper surface side convex portion in the thickness direction on the second dial plate and positioned with respect to the second dial plate by concave and convex fitting, The watch according to any one of Items 1 to 3. An annular third facing member in which an inner peripheral surface contacts the outer peripheral surface of the second facing member, a first scale is formed on the upper surface, and a gear is formed in the circumferential direction;
A crown that is fitted to the gear and rotates the third dial member by being operated by a user,
The timepiece according to claim 4, wherein a second scale functioning as a rotary slide rule in combination with the first scale is formed on the upper surface of the second dial member. Further has a small pointer for displaying information different from the time displayed by the pointer,
The small pointer is driven by the movement and is arranged at a position different from the pointer in the thickness direction between the first dial and the second dial. The listed clock. The timepiece according to any one of claims 1 to 6, wherein an opening is provided at the center of the second dial so that the pointer can be visually recognized from above the second dial through the opening. The timepiece according to any one of claims 1 to 7, wherein an index for displaying time is provided on the second dial, and the index is made of a mixture of resin and decorative particles. The timepiece according to claim 8, wherein the decoration particles are a luminescent inorganic compound.

Images