JP7267145B2 - clock - Google Patents

Description

The present invention relates to timepieces.

Patent Document 1 discloses an upper dial plate having an opening at a predetermined location, a pointer that moves above the upper dial plate, a lower dial plate that is positioned below the upper dial plate, and a lower dial plate. a parting frame member provided between and the upper dial plate at a position corresponding to the position of the opening in the upper dial plate; A dial plate is disclosed in which the member and the lower dial plate are provided with a position regulating portion for positioning the parting frame member with respect to the lower dial plate.

Patent Document 2 discloses a dial assembly to be housed in a watch case, comprising a ring member, a first dial, a ring-shaped spacer, and a second dial in this order. 2 is provided with restricting means for restricting the mutual positional relationship between the dial, the spacer, and the movement.

Japanese Patent No. 4595977 Japanese Patent No. 5853504

A multi-function watch needs to display a variety of information, but if characters and indices corresponding to each piece of information are placed on the dial, the display surface of the dial becomes complicated and the visibility of the time becomes poor. descend. Therefore, a transparent second dial plate is provided above the dial so that the time-related indicators (hour characters) are particularly conspicuous, and the hour characters are arranged there. can be considered. If the second dial plate and the dial member are integral parts, the manufacturing process of the parts becomes complicated, so it is desirable to separate them. There is a need to. In addition, since the double dials increase the thickness of the watch as a whole, it is necessary to devise ways to reduce the thickness of the watch.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a timepiece with excellent time visibility, reduced overall thickness, and easy positioning between a dial and a dial member.

hands composed of an hour hand, a minute hand and a second hand, a movement for driving the hands, a first dial, an upper surface side protrusion provided on the upper surface and a lower surface side protrusion provided on the lower surface, a ring-shaped first dial member arranged on the first dial plate and positioned with respect to the first dial plate by the lower surface side projection; A transparent second dial positioned with respect to the dial member and one of the pointers is disposed between the first dial and the second dial, and the rest of the pointers are above the second dial. A clock is provided, characterized in that:

Preferably, the hour hand is arranged between the first dial and the second dial, and the minute and second hands are arranged above the second dial. The first dial is preferably positioned with respect to the movement by means of a concave-convex fit.

The above-described timepiece further includes a second ring-shaped dial member which is arranged on the second dial plate so as to overlap with the upper convex portion in the thickness direction, and which is positioned with respect to the second dial plate by means of concave-convex fitting. is preferred.

The above-described timepiece includes an annular third dial member having an inner peripheral surface in contact with an outer peripheral surface of the second dial member, a first scale formed on the upper surface, and a gear formed in a circumferential direction, and a third dial member fitted to the gear. and a crown for rotating the third dial member by being operated by the user, and 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. It is preferable that

The timepiece described above further has a small hand for displaying information different from the time displayed by the hands, the small hand is driven by the movement, and the thickness of the hand is between the first dial and the second dial. They are preferably arranged at different positions in the direction.

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

The second dial is provided with indicators for displaying the time, and the indicators are preferably made of a mixture of resin and decorative particles. The decorative particles are preferably noctilucent inorganic compounds.

The timepiece described above has excellent time visibility, a reduced overall thickness, and easy positioning of the dial and dial member.

2 is a top view of the timepiece 1; FIG. 2 is a cross-sectional view of the timepiece 1; FIG. 2 is a cross-sectional view of the timepiece 1; FIG. 4 is a schematic top view of the movement 10. FIG. 3 is a top view of the first dial plate 20; FIG. 3A and 3B are a top view and a cross-sectional view of a first cover sheet 30; FIG. FIG. 4 is a rear view and a perspective view of the first cover sheet 30; 4A and 4B are a top view of a second dial plate 40 and a cross-sectional view of an indicator 41; FIG. 8A is a top view, a cross-sectional view, and a rear view of the second cover sheet 50. FIG. It is a figure which shows the scales 52 and 54 of the 2nd inside cover 50. FIG. 4A and 4B are a top view and a cross-sectional view of a turning cover 60; FIG. FIG. 6 is a diagram showing a turntable 60 and scales 66, 67 of another turntable; 4 is a schematic cross-sectional view for explaining the connection relationship among the movement 10, the first dial plate 20, the first dial plate 30, the second dial plate 40, and the second dial plate 50. FIG.

The timepiece will be described below 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. FIG. 2 and 3 show sections of the watch 1 along lines II-II and III-III of FIG. 1, respectively. The main components of the watch 1 include pointers 5, a solar cell 9, a movement 10, a first dial plate 20, a first dial plate 30, a second dial plate 40, a second dial plate 50, a rotating dial plate 60, an exterior case 70, and a back cover. It has a lid 75 , a bezel 80 and a windshield 90 . The first dial 30, the second dial 50, and the rotating dial 60 are annular members called dial rings (paper dial members). As shown in FIG. 1, a first crown 71, a second crown 72 and operation buttons 73 and 74 are arranged at the 3 o'clock, 8 o'clock, 2 o'clock and 4 o'clock positions on the side of the exterior case 70, respectively. .

Clock 1 is a model designed especially for aircraft pilots, and on the upper surface of cylindrical bezel 80, as shown in Fig. 1, a GROUND-AIR VISUAL SIGNAL CODE is displayed. A character string indicating is printed. Examples of this string are "I-REQUIRE DOCTOR", "II-REQUIRE MEDICAL SUPPLIES", "F-REQUIRE FOOD AND WATER", "Y -Yes", "N-No", "LL-All WELL", "X-UNABLE TO PROCEED" and "K-INDICATE DIRECTION TO PROCEED" Show me the direction) are listed in clockwise order starting at 12 o'clock.

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 aeronautical slide rule (rotary slide rule) is formed. The scale of the rotary dial 60 is rotated by the user turning the second crown 72 . The aeronautical slide rule will be described later with reference to FIGS. 10 and 12(A).

The hands 5 are composed of an hour hand 5h, a minute hand 5m, and a second hand 5s, and rotate clockwise around a rotating shaft 19 provided in the center of the first dial 20 to indicate the current time (hour, minute, and second). indicate. The shape of the pointer 5 may be substantially bar-shaped, and can be changed as appropriate according to the design of the timepiece.

As shown in FIG. 1, the watch 1 has a first display section 110, a second display section 120, a third display section 110, a second display section 120, and a third display section at positions of 3 o'clock, 6 o'clock, 9 o'clock and 4:30 on the first dial 20. 130 and a fourth display section 140 . These display parts are arranged closer to the center of the first dial plate 20 than the scale of the aviation slide rule (more precisely, the first dial 30, the second dial 50 and the rotary dial 60).

The first display section 110 displays the mode of the timepiece 1 with the disc hands 111 . Character strings (marks) of “CHR”, “TME”, “UTC”, “SET”, “LLI” and “ALM” are printed on the upper surface of the disk needle 111 at intervals of 60 degrees. These marks correspond to chronograph (stopwatch), normal time display, coordinated universal time display, setting change such as time adjustment, timepiece light intensity display, and alarm setting functions in order. When the user pulls the first crown 71 outward and turns it, the disc needle 111 rotates around the rotation axis provided in the center of the first display section 110 . In the watch 1, the triangular hour character at the 3 o'clock position also serves as an index of the first display unit 110, and when the user aligns the mark corresponding to the mode to be switched to the 3 o'clock position, the mark will appear. The corresponding function is executed.

The second display unit 120 displays, for example, the current time (local time) in another city with a time difference from the city where the user is located, using small hands 121 and 122 . A small pointer 121 is a minute hand, and a small pointer 122 is an hour hand, which rotate clockwise about a rotating shaft 19a (see FIG. 2) provided in the center of the second display section 120, respectively. Since the second display unit 120 displays the time 24 hours a day, the 6 o'clock and 12 o'clock positions of a normal clock correspond to 12 o'clock and 24 o'clock, respectively, and the small pointer 122 moves through the second display unit 120 in 24 hours. 1 rotation.

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

When the disk hand 131 displays the day of the week, nine of "S", . . . , "T", . placed in the hour position. When the user wants to display daylight saving time, for example, the user pulls the first crown 71 outward and presses the operation button 73 or 74. Each time the user presses the button, the characters "ON" and "OFF" are alternately displayed at the 9 o'clock position. Rotate. The hands 5 indicate daylight saving time when "ON" is set at the 9 o'clock position, and indicate standard time when "OFF" is set at the 9 o'clock position. When the user wants to display the amount of charge, for example, the user presses the operation button 73 or 74 without pulling the first crown 71 outward. position.

The fourth display portion 140 is a window portion for displaying the date, and displays one of the numbers written on the date plate (not shown). The date dial is a disk-shaped member on which numbers "1" to "31" are written in order in the circumferential direction. In the illustrated example, the fourth display section 140 displays "7" indicating that it is the 7th.

FIG. 4 is a schematic top view of the movement 10. FIG. The movement 10 is a driving mechanism of the timepiece 1 including mechanical and electrical parts, and drives the rotating shafts 19 and 19a of the hands 5 and small hands 121 and 122. The movement 10 includes a circular frame 11 arranged on the side of the back cover 75 in the exterior case 70, motors 12a to 12d arranged therein, train wheels 13a to 13d, an antenna 14, clock control ICs 15a and 15b, It has parts such as a communication control IC 16 and a secondary battery 17 . On the circumference of the frame 11, four projections 18 that fit into the grooves of the first dial plate 20 (the grooves 27 in FIG. 5, which will be described later) are formed at intervals of approximately 90 degrees.

Motors 12 a - 12 d are step motors that drive pointer 5 , small pointers 121 and 122 and disk 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 pointers 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 gear train 13 a is a gear train that connects the first crown 71 and the rotating shaft of the disk needle 111 . The gear train 13b connects the rotating shaft 19a of the small pointers 121 and 122 and the motor 12b, the gear train 13c connects the rotating shaft 19 of the pointer 5 and the motors 12a and 12c, and the gear train 13d connects the disc needle 131. It is a gear train that connects the rotating shaft and the motor 12d. In contrast to the illustrated embodiment, all pointers may be rotated independently of each other by separate motors.

The antenna 14 is a rectangular member arranged so as to cover the periphery of the 12 o'clock position in the frame 11 in a planar shape. Receiving satellite radio waves, standard radio waves or other radio waves. The timepiece 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. electronic components. These ICs are mounted on a circuit board (not shown) arranged within the frame 11 . The clock 1 is a radio-controlled clock that can receive time information through the antenna 14 and set the current time. .

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 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 overlaps the motors 12a to 12c, train wheels 13b and 13c, and timepiece control ICs 15a and 15b in the thickness direction of the timepiece 1, their positions are indicated by broken lines in FIG. A primary battery may be used instead of the secondary battery 17 as the power source for the timepiece 1, in which case the solar cell 9 may be omitted.

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

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 pointers 121, 122, and the disc needle 131 pass through the respective centers. Shaft holes 21a, 22a and 23a are provided. The fourth display area 24 is a rectangular opening. A shaft hole 26 through which the rotating shaft 19 of the hands 5 passes is provided in the center of the first dial plate 20 .

In the first display area 21, a striped pattern 21b for emphasizing the currently selected mode mark is displayed in a fan-shaped area with a central angle of about 60 degrees in the 3 o'clock direction centered on the shaft hole 21a. is formed, and a similar pattern is formed over the entire area of the 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 24 scales and 60 scales are formed at equal intervals on the double circumference of . In the watch 1, the disc hands 111 and 131 are transparent discs, and the striped pattern of the first display area 21 and the third display area 23 can be seen from above (the side of the windshield 90) through the disc hands 111 and 131. Although visible, this pattern may be absent and 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" ( Failed reception), "OK" (successful reception), and "RX-GPS" (acquisition of location information) are printed. When displaying information about reception, the pointer 5 indicates the corresponding information to the user by pointing to one of these indicators 25 .

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

6A to 6E are a top view and a cross-sectional view of the first cover sheet 30. FIG. 7A and 7B are a rear view and a perspective view of the first cover sheet 30. FIG. 6(B) to 6(E) respectively show cross sections of the first cover 30 along the VIB-VIB line, VIC-VIC line, VID-VID line and VIE-VIE line in FIG. 6(A). showing.

The first dial 30 is arranged on the outer circumference of the first dial plate 20 and plays a decorative role of the timepiece 1 while filling the space between the first dial plate 20 and the second dial plate 40 above. 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 cover 30 has a first projecting portion 31 and a second projecting portion at the 3 o'clock, 6 o'clock and 9 o'clock positions corresponding to the first display portion 110 , the second display portion 120 and the third display portion 130 . 32 and a third protrusion 33 . On the center side of the first dial 30 in these protrusions, a semicircular inclined surface is provided along the circular first display area 21, the second display area 22 and the third display area 23 of the first dial plate 20. 31a, 32a and 33a are formed. As shown in FIG. 6B, these inclined surfaces are highest on the outer peripheral side and become lower toward the central side.

A region indicated by reference numeral 34 on the center side of the first cover sheet 30 is an opening, in which the first display portion 110, the second display portion 120, the third display portion 130, the fourth display portion 140 and the rotation shaft 19 are placed. placed. An inclined surface 36 similar to the inclined surfaces 31a, 32a, and 33a is also formed in a portion other than the first protrusion 31, the second protrusion 32, and the third protrusion 33 at the inner end of the opening 34. As shown in FIG. A substantially rectangular groove corresponding to the fourth display portion 140 is formed at the 4:30 position on the inner peripheral surface of the first cover sheet 30 .

The first cover 30 has an annular outer peripheral portion 35 with flat (parallel to each other) upper and lower surfaces. Four protrusions 37 and four protrusions 38 are formed on the lower surface and the upper surface of the outer peripheral portion 35 at intervals of approximately 90 degrees, respectively. The convex portion 37 and the convex portion 38 may be overlapped at the same position in the circumferential direction, but they are arranged at different positions on the first cover page 30 . In order to understand the positional relationship between the two, the position of the convex portion 37 on the lower surface side is indicated by a dashed line also in the top view of FIG. 6(A). The convex portion 37 is an example of a lower surface side convex portion and fits into the groove portion 28 of the first dial plate 20 . That is, the first dial 30 is positioned with respect to the first dial plate 20 by the protrusion 37 . The convex portion 38 is an example of a convex portion on the upper surface side, and fits into a groove portion of the second dial plate 40 (a groove portion 47 in FIG. 8A, which will be described later).

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

A colored member or a member provided with a colored layer can be used for the second dial plate 40 as long as it is transparent enough to allow the first dial plate 20 to be visually recognized. For example, by coloring the second dial plate 40 in a pale blue image of the sky or a pale orange image of the setting sun, it is possible to further emphasize that the watch 1 is a model designed for aircraft pilots. It is possible to give a visual effect to

The indicators 41 are time display figures (hour characters, indexes) arranged at regular intervals on the circumference of the second dial 40 . Each index 41 has, for example, a three-layer structure of a luminous paint 41a, a resin film 41b, and an adhesive layer (sticky layer) 41c as shown in FIG. 8B, and the luminous paint 41a is applied on the resin film 41b. The adhesive layer 41c is adhered to the upper surface of the second dial plate 40 to form the second dial plate 40. As shown in FIG. In the illustrated example, of the 12 indicators 41, the one at 12 o'clock is the largest, the ones at 1 o'clock, 5 o'clock, 7 o'clock and 11 o'clock are the next largest, and the others are even smaller. The indicators 41 at 3 o'clock and 9 o'clock are substantially triangular (pointed trapezoid), while the other indicators 41 are rectangular or trapezoidal. In this way, the indicators may differ from each other in size, shape, radial position, and the like. Also, instead of the indicator 41, characters, numbers, symbols, projections, or the like may be formed on the second dial plate 40. FIG.

The luminous paint 41a is made by mixing decorative particles, which are luminous inorganic compounds such as strontium aluminate phosphor and zinc sulfide, with resin, and has the property of storing light and emitting light in dark places at night. The index 41 is not limited to the three-layer structure described above, and the luminous paint 41 a may be directly printed on the second dial plate 40 . Alternatively, as the indicator 41, a resin mixed with decorative particles such as a reflective or glossy granular material or a coloring pigment may be used instead of the luminous paint.

Conventional watches secure time visibility by arranging time-related indexes (hour characters) in a conspicuous manner. However, in the case of a radio-controlled timepiece, if the hour characters are large and conspicuous, they tend to interfere with the reception of radio waves, which can lower the reception sensitivity. In the timepiece 1, since the index 41 is formed on the second dial 40 which is spaced above the first dial 20, reception is easier than when the hour characters are formed on the first dial 20. A decrease in sensitivity can be prevented. In the watch 1, as can be seen from FIGS. 2, 4 and 8A, the indicator 41 at the 12 o'clock position is arranged directly above the antenna 14. The indicator 41 is made of resin and decoration. Since it is a mixture with particles, the reception of radio waves is not hindered by the indicator 41 .

The city display 42 is obtained by arranging abbreviations of a plurality of cities or regions in the circumferential direction in order according to the time difference based on the universal standard time. The abbreviated name of each city or region is represented by three letters of the alphabet, and these character strings are arranged between the 12 indicators 41 and the indicators 41 on the same circumference. The time difference display 43 is a number from "-12" to "+14" indicating the time difference of each city or region included in the city display 42 based on the world coordinated time, and is arranged above or below the abbreviation of each city or region. ing. The second display unit 120 in FIG. 1 displays the current time in another city, which is included in the city display 42 and has a time difference from the time displayed by the hands 5, for example.

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 section 130 in FIG. The opening 45 is a semicircle with a relatively large diameter arranged on the 6 o'clock side of the center of the second dial plate 40, and similarly arranged on the 12 o'clock side of the center of the second dial plate 40. It has a shape that combines a semicircle with a relatively small diameter. The scale 46 is formed along a semicircle on the 12 o'clock side of the opening 45, and indicates the amount of power generated by the solar cell 9 when the watch 1 is in the "LLI" (watch light intensity display) mode. It is intended to be shown in Guideline 5. On the scale 46, the 9 o'clock position indicates the minimum power generation amount, and the 3 o'clock position indicates the maximum power generation amount.

As shown in FIGS. 2 and 3, in timepiece 1, hour hand 5h is arranged below second dial 40 (between first dial 20). Even if the transparent dial plate is transparent, it has a certain reflectance. Therefore, if the hands are arranged below the transparent dial plate in this way, the visibility of the hands may be deteriorated. In addition, if the dials are arranged in a double layer, they may block part of the incident light to the solar cell, resulting in a decrease in charging efficiency. However, in the timepiece 1, since the second dial 40 has the opening 45, the visibility of the hour hand 5h is not deteriorated by the second dial 40, and the charging efficiency is lowered as compared with the case without the opening 45. is also suppressed.

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

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

As shown in FIG. 9(C), on the bottom surface of the second dial plate 50, four projections 56 that fit into the grooves 48 of the second dial plate 40 are formed at intervals of 90 degrees. In other words, the second dial 50 is positioned with respect to the second dial plate 40 by the concave-convex fitting. In the top view of FIG. 9A as well, the positions of the projections 56 are indicated by dashed lines.

The second dial 50 is arranged at a position overlapping the grooves 47 and 48 on the second dial plate 40 and the projection 56 fitted in the groove 48 in the thickness direction. If the second dial 50 is made of an opaque material and the grooves and protrusions are hidden from view from the side of the windshield 90, the appearance of the timepiece 1 is improved, which is preferable from the design point of view. However, if the groove 48 is provided only on the bottom side of the second dial plate 40 in the thickness direction and the outer peripheral portion of the second dial plate 40 is made opaque, the fitting between the first dial plate 30 and the second dial plate 40 may be prevented. The second endpaper 50 may be omitted if there is no need to hide the portion.

FIG. 10 is a diagram showing scales 52 and 54 of the second endpaper 50. As shown in FIG. Graduations 52 and 54 shown in FIG. 10 are formed on the inclined surfaces 51 and 53 of the second cover 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 aeronautical slide rule (rotary 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 cover sheet 50 can be seen.

11(A) to 11(C) are a top view and a cross-sectional view of the turning cover 60. FIG. 11(B) and 11(C) show cross sections of the turning dial 60 along the XIB-XIB line and the XIC-XIC line of FIG. 11(A), 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 rotating dial 60 is arranged between the second dial 50 and the bezel 80 and on the external case 70 so that the inner peripheral surface contacts the outer peripheral surface of the second dial 50 (see FIGS. 2 and 3). ). As shown in FIG. 11(B), the longitudinal section of the turning cover 60 has a substantially "<" shape in which a horizontal portion 61 and a vertical portion 62 are joined together. A concave portion 64 is formed on the side to accommodate the convex portion of the bezel 80 . The upper surface of the horizontal portion 61 is an inclined surface 61a in which the central side of the turning dial 60 is lower than the outer peripheral side thereof.

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 around the second dial 50 in the circumferential direction when the user turns the second crown 72 .

FIG. 12(A) is a diagram showing a scale 66 of the turning cover 60. FIG. A scale 66 shown in FIG. 12(A) is formed on the inclined surface 61a of the rotary cover 60, and numbers "10" to "90" are also printed thereon. The scale 66 is an example of a first scale and corresponds to the other scale that constitutes an aeronautical slide rule (rotary slide rule). In FIG. 11A, the scale 66 is omitted so that the shape of the turning dial 60 can be seen. The aviation slide rule performs simple calculations 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 directly under the windshield 90 , and are positioned closest to the user's eyes inside the timepiece 1 , making them easy for the user to see.

FIG. 12(B) is a diagram showing a scale 67 of another turning cover. The scale 67 differs from the scale 66 in FIG. 12A only in that the lining of the scale portion other than the numerals is painted 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 dial 60 instead of the scale 66.

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

As described above, the convex portion 18 of the movement 10 fits into the groove portion 27 of the first dial plate 20, and the convex portion 37 on the lower surface side of the first dial plate 30 fits into the groove portion 28 of the first dial plate 20, respectively. The convex portion 38 on the upper surface side of the first dial plate 30 fits into the groove portion 47 of the second dial plate 40, and the convex portion 56 of the second dial plate 50 fits into the groove portion 48 of the second dial plate 40, respectively. Thus, by providing the convex portions 37 and 38 on the upper and lower surfaces of the first dial plate 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 can be The positions of the members can be easily aligned.

However, some or all of the protrusions 18, 37, 38, and 56 do not have to pass through 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 plate 20 may be open only on the lower surface side, and the groove portion 28 may be opened only on the upper surface side. Some or all of the grooves 27, 28, 47, 48 may not be open to the outer peripheral side of the first dial plate 20 or the second dial plate 40, and may be formed radially inward of the dial plate. It may be an opening. Contrary to the above embodiment, for example, the first dial plate 20 is formed with a projection and the first dial plate 30 is formed with a groove, or the second dial plate 40 is formed with a projection and the second dial plate 50 is formed with a groove. may be formed respectively, and the members may be fitted to each other in a concave-convex manner.

As shown in FIG. 13A, in the timepiece 1, of the hands 5, the hour hand 5h is arranged between the first dial plate 20 and the second dial plate 40, and the minute hand 5m and the second hand 5s are arranged as the second characters. It is arranged above the plate 40 (between the second dial plate 40 and the windshield 90). Further, as shown in FIG. 2, the small hands 121 (and 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 arranged at different positions in the thickness direction between the dials so as not to contact each other. Different from the illustrated embodiment, 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 hands 5 may be arranged above the second dial plate 40. Alternatively, two of the pointers 5, such as the hour hand 5h and the minute hand 5m, may be arranged between the first dial plate 20 and the second dial plate 40, and the remaining pointers 5 above the second dial plate 40. good.

By dividing the position of the three pointers 5 in the thickness direction above and below the second dial 40 in this way, the timepiece as a whole is more flexible than when the three pointers 5 are arranged on the second dial 40 . Since the dial can be expressed three-dimensionally while reducing the thickness of the timepiece 1, the appearance of the timepiece 1 is improved. Further, in the timepiece 1, the visibility of the hands 5 (that is, the time) is improved compared to the case where the three hands 5 are arranged between the first dial 20 and the second dial 40.

1 Clock 5 Pointer 10 Movement 18, 37, 38, 56 Protrusion 20 First dial plate 27, 28, 47, 48 Groove portion 30 First dial plate 40 Second dial plate 50 Second dial plate 60 Rotating dial plate 70 Exterior case 75 Back cover 80 bezel 90 windshield

Claims (8)

hands consisting of an hour hand, minute hand and second hand,
a movement for driving the pointer;
a first dial;
It has an upper surface-side protrusion provided on the upper surface and a lower surface-side protrusion provided on the lower surface, is arranged on the first dial, and is positioned with respect to the first dial by the lower surface-side protrusion. an annular first dial member;
a transparent second dial plate disposed on the first dial member and positioned with respect to the first dial member by the upper surface-side convex portion;
one of the hands is arranged between the first dial and the second dial, the rest of the hands is arranged above the second dial;
A timepiece, 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. 2. A timepiece according to claim 1 , wherein said first dial is positioned with respect to said movement by a concave-convex fit. hands consisting of an hour hand, minute hand and second hand,
a movement for driving the pointer;
a first dial;
It has an upper surface-side protrusion provided on the upper surface and a lower surface-side protrusion provided on the lower surface, is arranged on the first dial, and is positioned with respect to the first dial by the lower surface-side protrusion. an annular first dial member;
a transparent second dial plate disposed on the first dial member and positioned with respect to the first dial member by the upper surface-side convex portion;
a ring-shaped second dial member disposed on the second dial plate at a position overlapping the upper surface-side convex portion in a thickness direction and positioned with respect to the second dial plate by concave-convex fitting ; ,
A timepiece, wherein one of said hands is arranged between said first dial and said second dial, and the rest of said hands are arranged above said second dial. an annular third dial member having an inner peripheral surface in contact with the outer peripheral surface of the second dial member, a first scale formed on an upper surface, and a gear formed in a circumferential direction;
a crown that engages with the gear and rotates the third dial member when operated by a user;
4. The timepiece according to claim 3 , 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. hands consisting of an hour hand, minute hand and second hand,
a movement for driving the pointer;
a first dial;
It has an upper surface-side protrusion provided on the upper surface and a lower surface-side protrusion provided on the lower surface, is arranged on the first dial, and is positioned with respect to the first dial by the lower surface-side protrusion. an annular first dial member;
a transparent second dial plate disposed on the first dial member and positioned with respect to the first dial member by the upper surface-side convex portion;
a small pointer for displaying information different from the time displayed by the pointer ;
one of the hands is arranged between the first dial and the second dial, the rest of the hands is arranged above the second dial;
A timepiece according to claim 1, wherein the small hands are driven by the movement and arranged at a position different in thickness direction from the hands between the first dial and the second dial. hands consisting of an hour hand, minute hand and second hand,
a movement for driving the pointer;
a first dial;
It has an upper surface-side protrusion provided on the upper surface and a lower surface-side protrusion provided on the lower surface, is arranged on the first dial, and is positioned with respect to the first dial by the lower surface-side protrusion. an annular first dial member;
a transparent second dial plate disposed on the first dial member and positioned with respect to the first dial member by the upper surface-side convex portion;
one of the hands is arranged between the first dial and the second dial, the rest of the hands is arranged above the second dial;
A timepiece according to claim 1, characterized in that an opening is provided in the center of said second dial so that said hands can be visually recognized through said opening from above said second dial. The timepiece according to any one of claims 1 to 6 , wherein the second dial is provided with indicators for displaying time, and the indicators are made of a mixture of resin and decorative particles. 8. A timepiece according to claim 7 , wherein said decorative particles are luminous inorganic compounds.

Images