JP2993201B2 - Mode display structure of multifunction electronic watch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mode display structure of a multifunction electronic timepiece.

[0002]

2. Description of the Related Art Conventionally, the mode display structure of a multifunction electronic timepiece has been as follows. Using a mode display member that is arranged at a position of 6 o'clock, which is about 7 mm away from the center of the clock, and rotates about the position as a center of rotation 1) A character / mark representing a mode marked on a dial is attached to the display member. Indicate with a needle. 2) The mode display member has a display section on which characters / marks indicating the mode are marked, and each mode is designated by selectively showing the characters / marks through a window hole provided in the dial. And so on.

[0003]

However, the above-mentioned prior art has the following problems. 1) Since the mode display member rotates around a specific position in the 6 o'clock direction, if the winding true position is limited to the 3 o'clock direction, only the mode display in the 6 o'clock direction can be performed, and the degree of freedom in design is small. 2) The display area for marking characters and marks indicating the mode is also limited to a range of about 6 mm in radius, and the size of the characters and marks is reduced, resulting in an unclear mode display.

It is an object of the present invention to provide a multifunctional electronic timepiece having improved practicality by displaying an easily viewable mode and having a high degree of freedom in design.

[0005]

A mode display structure of a multifunction electronic timepiece according to the present invention comprises a winding stem as an external operation member and a rotary shaft of a rotary switch for switching an electric function mode (hereinafter referred to as a mode). A shaft member having a jump control gear, a jump control member that engages with the jump control gear and rotationally positions the shaft member, and engages with the shaft member so as to be able to rotate integrally with the shaft member. A correction transmission wheel for transmitting the rotation of the winding stem to the shaft member; a mode display portion having a ring shape on which a character string or mark representing the mode is marked; and an internal tooth portion provided with the mode display portion on the inner diameter portion. A mode display member comprising:
A correction wheel that engages with the shaft member so as to be able to rotate integrally with the shaft member and transmits the rotation of the shaft member to the mode display member, a holding plate member that positions the mode display member in a cross-sectional direction, and the like. The mode display member is arranged so as to mesh with the correction wheel with the internal teeth and to rotate around a clock center as a rotation center.

[0006] Further, the present invention is characterized in that a jump control member for positioning the mode display member in a plane is provided.

[0007] Further, a jump control portion of the jump control member for controlling the rotation positioning of the shaft member is engaged with the jump control gear with a small minute gap to perform the rotation positioning of the shaft member. .

Further, a play is provided between the shaft member and the correction transmission wheel in a rotational direction of at least θ / 2 or more with respect to a rotation angle θ of one mode of the shaft member.

Further, the mode display member has a mark indicating a specific position in the rotation direction.

[0010] Further, the pressing plate member has a stepped shape at a planar position substantially the same as the root position of the internal teeth of the mode display member, and the stepped shape is low on the clockwise side,
It is characterized in that the outer peripheral side is formed to be higher.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on embodiments. FIG. 1 is a front plan view showing an embodiment of the multifunction electronic timepiece of the present invention. In the present embodiment, multi-functionalization is realized by using two step motors.

Reference numeral 1 denotes a ground plate made of plastic resin molding, and reference numeral 2 denotes a battery. Reference numeral 3 denotes a stepping motor A for driving a train of wheels for indicating the time of the hour and minute hands, a magnetic core 3a made of a material having a high magnetic permeability, a coil wound around the magnetic core 3a, and a coil having both ends conductively terminated. Lead board 3
b, a coil block 3d composed of a coil frame 3c, a stator 4 composed of a high magnetic permeability material, and a rotor 5 composed of a rotor magnet 5a and a kana 5b. Also, 6, 7,
Reference numeral 8 denotes a fifth wheel, a third wheel, and a second wheel, respectively, 9 denotes a minute wheel, and 10 denotes an hour wheel. The center wheel 8 with the minute hand and the hour wheel with the hour hand are arranged at the center of the watch body.
With these motor and wheel train configurations, the hour and minute indications according to the respective functions are performed at the center of the timepiece body. For example, in the current time display function state, the normal time is displayed, in the stopwatch function state, the stopwatch measurement time is displayed, and in the alarm set function state, the alarm set time is displayed. FIG. 2 is a cross-sectional view showing the engaged state of the train wheel for displaying the hour and minute. As shown in the figure, the rotor pinion 5b meshes with the gear 6a of the fifth wheel & pinion 6, and the fifth pinion 6
b meshes with the gear 7a of the third wheel & pinion 7 . The pinion 7b of the third wheel & pinion 7 meshes with the gear 8a of the second wheel & pinion 8. The reduction ratio from the rotor pinion 5b to the second pinion gear 8a is 1/120, and when the rotor makes a half turn (180 °) in 15 seconds, the second pinion wheel makes one turn in 3600 seconds, that is, 60 minutes. , The minute of the time can be displayed. Reference numeral 11 denotes a minute hand fitted to the end of the center wheel & pinion 8 for displaying minutes. The second pinion 8b meshes with the gear 9a of the minute wheel 9, and the minute pinion 9b meshes with the hour wheel 10. The reduction ratio from the second kana 8b to the hour wheel 10 is 1/12, and the time can be displayed. Reference numeral 12 denotes an hour hand engaged with the end of the hour wheel 10 for indicating the hour.

In FIG. 1, reference numeral 13 denotes a stepping motor B for displaying a stopwatch second and a date. The stepping motor B has a magnetic core 13a made of a material having a high magnetic permeability, a coil wound on the magnetic core 13a, and both ends of which are conductively connected. Coil block 13 composed of coil lead board 13b and coil frame 13c
d, stator 14 and rotor magnet 15 made of high magnetic permeability material
The rotor 15 is composed of a and a pin 15b. Also, 16, 17, 18 and 19 are second CG first intermediate wheel, second CG second intermediate wheel, second CG third intermediate wheel, and second C
It is a G car, and the second CG car 19 is arranged at the center position of the watch body. With these wheel train configurations, the stopwatch second and date are displayed coaxially with the hour and minute hands at the center position of the watch body. FIG. 3 is a cross-sectional view showing the train wheel engagement state for displaying the stopwatch seconds and date. As shown in the drawing, the rotor pinion 15b meshes with the gear 16a of the second CG first intermediate wheel 16, and the second CG first intermediate pinion 16b meshes with the gear 17a of the second CG second intermediate wheel 17. And the second CG second intermediate kana 17b is the second CG second
The third intermediate pinion 18b of the second CG third gear 18b meshes with the gear 19a of the second CG wheel 19. The reduction ratio from the rotor pinion 15b to the second CG gear 19a is 1/900. Reference numeral 20 denotes a center hand fitted to the tip of the second CG wheel 19 for displaying seconds and dates. The center hand has a function of displaying seconds at one end and a function of displaying a calendar at the other end depending on the respective functional states. In FIG. 1, reference numeral 21 denotes a 1/10 second CG wheel disposed on a 12 o'clock axis of the watch body, and includes a rotor 15, a second CG first intermediate wheel 16, and a 1/10 second CG wheel 21.
1/10 second stopwatch display is performed. FIG. 4 is a cross-sectional view showing the engagement state of the train wheel for displaying the stopwatch for 1/10 second. As shown in the figure, the second CG first intermediate pinion 16b is the second CG car 2
Meshes with one gear. The reduction ratio from the rotor pinion 15b to the second CG gear 21a is 1/15.

In the stopwatch function state, the CM
By the electric signal from the OS-IC 32, the rotor 15
Rotate 180 ° × 3 every / 10 seconds. As a result, the second CG wheel 19 rotates 0.6 ° every 1/10 second, that is, 0.6 ° × 10 steps per second, and can display a second that rotates once every 60 seconds. The 1/10 second CG car 21 is 1 /
It rotates 36 ° every 10 seconds, that is, 36 ° × 10 steps per second, and 1/10 second display becomes possible in conjunction with the second CG car. In the current time display function state, the CMOS-
Due to the electric signal from the IC 32, the rotor 15
X 30 rotations or 180 x 60 rotations. As a result, the second CG wheel 19 rotates 6 ° or 12 °, and the center hand 20 can display the date at one end. As an example of the display of the day, when the second CG car 19 displays in increments of 6 °,
For example, a half-circle calendar display of 1 to 31 is possible from the 3 o'clock position to the 9 o'clock position. Also, in the case of 12 ° increments, if the interval between 29-30 and 30-31 is set to 6 ° increments, full-circle calendar display is possible. In an external view of an embodiment to be described later, an embodiment in which an entire calendar is displayed is shown.

In FIG. 1, reference numeral 22 denotes an external operation member, which is a winding stem with a crown, and reference numeral 23 denotes a shim which engages with the winding stem 22. The buckle 23 engages with the latch 24 to determine the pull-out position of the winding stem 22 and, at the same time, engages with the switch lever 25 by the lower surface dowel 23c to make the switch lever 25 interlock. The latch 24 determines the position of the catch wheel 26 in the axial direction of the winding stem 22 by engagement with the lever 23. With these switching structures, a circuit-like switching state as a clock body is set. FIG. 5 is a sectional view showing an engaged state of the switching structure. As shown in the figure,
Is supported by a weighing shaft 27 incorporated in the main plate 1, engages with the latch 24 on a side surface 23 a that is one step lower, and has a switch lever 25 with a dowel 23 c integrally formed on the lower surface thereof.
Engage with. Also, the lower surface 23b which is raised by one step is engaged with the winding stem. The shim 23 is pressed and fixed by a shim pressing spring 28 a of the battery plus terminal 28, and is stabilized and, at the same time, is formed in three steps up and down with respect to a surface received by the shim 23 on the shim 27. It is possible to minimize the moment of the force received from the lever 24 and to stabilize the shim 23 without being pulled up. The latch 24 and the switch lever 25 as a switch member are sandwiched between the train wheel bridge 29 and the main plate 1 with a certain clearance and guided. Switch lever 25 is rotatable about a dowel 1a of the base plate 1, by interlocking the setting lever 23, the contact spring portion 25a is the circuit block 30 of the circuit of the switch lever 25
Is pressed against. The switch lever 25 is configured to be in pressure contact with the mode correcting jumper 31 by the reaction force of the switch lever 25 while being pressed against the circuit block 30. The mode correction jumper 31 is a positive conduction spring 2 of the battery plus terminal 28.
8b conducts positively and conducts to the switch lever 25.

In FIG. 1, reference numeral 28 denotes a battery plus terminal, which is made of an elastic conductive member. The battery 2 is held and conducted by the battery-side pressure springs 28 c and 28 d of the battery plus terminal 28, and the upper surface is fixed by the battery pressing plate 33.
The battery plus terminal 28 has switch spring portions 28e and 28f substantially symmetrically with respect to the winding stem 22 located at 3 o'clock. The battery plus terminal is provided with springs 28g and 28g for preventing backlash of a magnetic-resistant plate located between the timepiece and the back cover as an exterior member.
h, 28i, backlash preventing spring 28 in the sectional direction of the watch body
k, 28l, 28m, holding spring 28n of the crystal unit,
It has a positive conduction spring 28p to the booster coil. With these elastic spring structures, conduction as a timepiece, holding and fixing of components, holding of the timepiece, and the like are performed.

FIG. 6 is a sectional view showing a fixing portion of the battery 2 held by the battery plus terminal 28. As shown in the drawing, the battery 2 is held from the side by the battery-side pressure springs 28c and 28d of the battery plus terminal 28, and at the same time, the battery 2 conducts positive conduction. The state before the battery-side pressure spring 28d is incorporated into the battery is at the position 28d 'as shown by a two-dot chain line.
By engaging the engaging portion 28d-1 of the battery plus terminal 28 with the battery 2, the battery 2 is held by the lateral pressure of the spring, and the battery plus terminal 28 can be prevented from rising upward in cross section. Further, the battery holding plate 33 has a burring portion 33a which is guided at the battery-side tip portion of the screw pin 81 which is driven and fixed to the base plate 1, and has an outer peripheral portion of the opening 1c of the base plate which escapes an outer periphery of the burring portion 33a. It is held and fixed by tightening the screw 91. The battery pressing plate 33 is positioned by the burring portion 33a and, at the same time, is positioned in the rotational direction by an engaging portion 33b that is engaged with the positioning hole 28q of the battery plus terminal 28. When the battery holding plate 33 is incorporated and fixed, the burring portion 33a
, And the screw 91 can be tightened and fixed at the same position, so that the member can be fixed in a very small space. Further, as described above, the battery-side pressure spring 28d of the battery plus terminal 28 returns to the position 28d 'at the same time as the removal of the battery 2, so that a structure such as removing a screw or the like is not required.

FIG. 7 is a sectional view showing a switch portion of a switch spring portion 28f constituted by the battery plus terminal 28. 8 and 9 are a sectional view showing a contact portion between the circuit board 30a and the switch conducting portion 28f-1 of the battery plus terminal 28, and a sectional view showing the button pressing portion 28f-2. As shown in the figure, the switch conducting portion 2 located at the tip of the switch spring portion 28f of the battery plus terminal 28
8f-1 is located at a position 28f-1 'shown by a two-dot chain line before the spring is incorporated, and simultaneously engages with the spring hook 1d of the main plate 1 to give the spring an initial deflection. By providing the switch spring with initial deflection, it is possible to suppress variations in the planar spring positions of the switch conducting portion and the button pressing portion, and at the same time, it is possible to have a reaction force for returning the button. In the present embodiment, the switch conducting portion 28f-1 at the tip of the spring is hooked on the main plate 1d, so that the planar position of the button pressing portion located in the middle of the spring is stable without variation. Next, the operation when the button is pressed will be described in detail. In the switch spring portion 28f, a button pressing portion 28f-2 is formed in a T shape with respect to a spring root portion 28f-3 and a switch conducting portion 28f-1. By pressing the button 34, a switch input is made in contact with the switch conducting section 28f-1. Further, even when the button 34 is pressed, the button pressing portion 28f-2 of the switch spring portion is twisted, so that no excessive stress is generated in the switch spring portion 28f even when the button 34 is pressed too much, and the bending, the settling, etc. There is nothing.

Next, the circuit configuration of the circuit block 30 will be described. In FIG. 1, 35 is a battery negative terminal, 3
Reference numeral 6 denotes a buzzer lead terminal which is in pressure contact with the piezoelectric element. As electric elements mounted on the circuit block 30, 37 is a step-up coil, 38 is a transistor for a buzzer, 39 is a capacitor for protecting a battery, 40 is a capacitor for slowing and increasing a rate, and 4
Reference numeral 1 denotes a crystal unit having a built-in crystal oscillator, and reference numeral 32 denotes a CMOS-IC for transmitting an electric signal. Reference numeral 42 denotes a circuit spacer for electrically connecting the circuit block 30 and the coil lead boards 3b and 13b in cross-sectional pressure. The electric circuit configuration will be described later, and the circuit structure will be described in detail here. The CMOS-IC 32 is fixed by a mold 30b after being wire-bonded to the circuit board 30a. Other elements are mounted and fixed with solder.

FIG. 10 is a sectional view showing the conduction structure of the battery negative terminal 35. Battery negative terminal 35 is ground plate 1
Are guided by the guide dowels 1e and 1f, and one end is in contact with the (−) side of the battery 2 and the other end is in contact with the circuit board 30a with the shoulder 1g of the main plate as a fulcrum. The battery minus terminal 35 and the buzzer transistor 38 are arranged so as to overlap in plan. The outer periphery of the transistor 38 is covered with a resin material, so that short-circuiting does not occur even when the transistor 38 contacts. In the same figure, a spring 28p for conducting a positive potential to the booster coil 37 is formed near the backlash prevention spring 28k of the battery plus terminal 28. The backlash prevention spring 28k bends with the spring 28p by incorporating the back cover 71 as an exterior member, and the spring 28k
p is pressed against the circuit board 30c. That is, the booster coil 37 has a structure in which a positive potential is obtained only after the exterior is incorporated and the complete state is reached. This is because if there is an output of a buzzer in a state where the piezoelectric element is not connected, the CMOS-IC may be reset by the output noise.

As described above, the guide dowel 1e of the main plate 1 for positioning the battery negative terminal 35 in FIG.
Between the transistor 3 and 1f so that the transistor 3
8 are arranged. Since the transistors 38 are arranged in a plane so that the mounting position of the normal transistor 38 does not overlap with other components, the space can be reduced, and the arrangement of other components can be given a margin. In addition, the guide dowels 1e and 1f of the main plate 1 overlap with the cross section of the transistor 38 to secure a certain amount of H1, so that the battery negative terminal 35 does not disengage from the guides 1e and 1f when an impact is applied. Can be

FIG. 11 is a rear plan view showing one embodiment of the multifunction electronic timepiece of the present invention shown in FIG. In addition to the basic timepiece function, the electronic timepiece of the present invention has a stopwatch function, an alarm function, a timer function, a dual time display function, etc. in addition to the basic timepiece function shown in FIG. Is performed by A mode display structure in which each function is displayed by a window arranged at the 6 o'clock position on the dial will be described below.

FIG. 12 is a plan view of a main part showing the switching section and the mode correction contact section of FIG. 1, and FIGS. 13, 14, and 15 are sectional views showing the mode correction structure. In FIGS. 11 to 14, the continuous wheel 26 is engaged with the mode correction transmission wheel 101 at the 0th stage of the winding stem so that the mode can be switched by turning the winding stem 22 in the normal portable state. When the winding stem 22 is turned, the ratchet wheel 26 rotates, and further, the rotation is transmitted to the mode correction axle 104 via the mode correction transmission wheel 101, the first mode correction intermediate wheel 102, and the second mode correction intermediate wheel 103. As shown in FIG. 13, the mode correcting axle 104 penetrates from the front side to the rear side (the dial 72 side) of the watch body, and is guided and held by guide holes provided in the main plate 1 and the train wheel bridge 29, respectively. The main plate engaging portion 104a of the mode correcting axle 104 has a circular cross section, and the engaging portion 104b of the mode contact spring 105, which is a rotary switch, and the engaging portion 104c of the second mode correcting intermediate wheel 103 are shown in FIG. D as shown
The mode contact spring 105 and the second mode correcting intermediate wheel 103 are respectively engaged with D-shaped holes provided in the intermediate wheel 103, and the three parts are integrally rotated.
Contact portions 105a and 105 of the mode contact spring 105
b denotes the substrate 3 of the circuit block 30 on which electric elements are mounted.
Patterns 30d, 30e, 30f, 30g, 3 on 0a
0h. The mode contact spring 105 rotates in conjunction with the winding stem operation by the above-described structure, and the contact portions 105a and 105b and the patterns 30d to 30h are rotated.
It is possible to electrically switch the mode by changing the combination of the contacts. That is, the contact portion 105b of the mode contact spring 105 is always conducted to the positive potential 30d, and the contact portion 105a at the other end is open (non-contact state), and how it is combined with and contacts 30e, 30f or 30g. in, it is possible to create a state of max2 ^three ways. In the normal state of the winding stem, by simultaneously pressing the A and B switches while rotating the winding stem, the mode contact spring 105
Is electrically connected to the pattern 30h on the circuit board, and the system set of the CMOS-IC on the circuit board 30a can be set.

The mode correcting axle 104 is rotationally positioned by engaging the jump controlling portion 31a of the mode correcting jumper 31 with a jump controlling gear 104e formed integrally with the mode correcting axle 104. Mode correction jumper 31
Are guided by the dowels 1n and 1i, and the jump control portion 31a is hooked on the main plate 1j and positioned. It has a constant clearance H ₂ is the jump restraining portion 31a of the jump restraining gear 104e and mode modification jumper 31 mode fixes the axle 104 in this state.

It is preferable to provide no mode in the mode correction axle 10
Rotation positioning of 4 can be performed without rattling, but in the assembling process, when the mode correcting axle 104 is guided only by the main plate and a force is applied by the mode correcting jumper 31, the mode correcting axle 104 tilts, and it becomes very difficult to install the train wheel bridge to be installed later. I will. Therefore by providing the aforementioned gap H _2, the improvement of the assembling property is improved. However, since the positioning and clearance H ₂ is too becomes impossible, is set to be about 2/100 mm.

By rotating the winding stem 22, the winding stem is rotated with a load torque until the jump control gear 104 e of the mode correcting axle 104 passes over the apex of the jump controlling portion 31 a of the mode correcting jumper 31. And the jump control part 31a
From the top to the rest position by the jump control of the mode correction jumper 31. Therefore, in the transmission system relating to the mode correction from the mode correction axle 104 to the second mode correction intermediate wheel 103, the first mode correction intermediate wheel 102, the mode correction transmission wheel 101, and the winding stem 22 via the continuous wheel 26, Modified axle 104
Care must be taken to ensure that the motor can be rotated by the dynamic control jumper 31. In the present embodiment, in the D-shape of the engagement portion 104c of the mode correcting axle 104 and the D-shaped center hole shape of the second mode correcting intermediate wheel 103, the rotation direction is at least half the gear pitch of the jump control gear 104e of the mode correcting axle 104. the as play is obtained, which spread the D-shaped center hole shape of the hole width of the second mode modified intermediate wheel 103. Therefore, the movement of the mode correction axle 104 becomes smooth, and the movement of the mode display wheel 106 described below can also be made smooth. In FIG. 11, a mode display wheel 106 is made of a synthetic resin material, and includes “Time”, “Reset”,
It has a mode display section 106b on which a character string indicating a functional state such as “→ 0 ←”, “chrono”, Timer, and the like are printed, and internal teeth provided inside the display section. The guide portion 1k is provided with a guide portion 1k having a substantially arc shape centered on the center of the clock, and is guided by the internal teeth portion in this embodiment. The mode state is selectively displayed by looking through the window hole 72a.
Is a mode correcting wheel, which is engaged with a mode correcting wheel engaging portion 104d of the mode correcting axle 104 through a D-shaped hole provided at the center, and rotates integrally with the mode correcting axle 104.
The mode correction wheel 107 meshes with the internal teeth of the mode display wheel 106, and transmits the rotation of the mode correction wheel 104 to the mode display wheel 106. Therefore, the mode display wheel 106 can be rotated around the center of the clock. According to the above-described structure, the mode display portion 106b of the mode display wheel 106 can be disposed near the outer periphery with respect to the center of the clock, and as a result, the display area for one mode on the mode display portion 106b is widened, and a large and easy-to-view mode display is achieved. It becomes possible. The mode display wheel 106 is positioned in a plane by a mode display jumper 108, and the cross-sectional direction is held between the mode display wheel pressing plate 109 with a certain clearance. Since the dynamic control of the mode display vehicle 106 by the mode display jumper 108 is transmitted as a load to the mode correction axle 104 via the mode correction vehicle 107, the dynamic control of the mode display jumper 108 is controlled by the mode correction jumper 31 described above. The setting is as weak as possible for control. Mode display jumper 108
By using this, the variation in the mode display position can be reduced, so that the gap between the window hole of the dial and the character string or mark indicating the mode can be reduced, and the character size can be increased accordingly.

The rotation of the winding stem 22 causes the mode correcting axle 104 to rotate as described above, so that the electric mode can be switched on the front side of the watch body, and at the same time, the mode can be changed via the mode correcting wheel 107 on the back side of the watch body. The display wheel 106 is rotated and the mode display is switched. In the present embodiment, the number of teeth of the jump control gear 104e of the mode correcting axle 104 is six, and the number of teeth of the mode correcting wheel 107 capable of performing six functional states per one round of the mode correcting axle 104 is 12.
The number of teeth of the mode display wheel 106 is set to 24, and the mode display wheel 106 is set to make a half turn with respect to one round of the mode correction axle 104. In order to match the phases of the functional states of the mode correction wheel 107 and the mode display wheel 106, a positioning hole 107a is formed in the mode correction wheel 107 and a 106a is printed on the mode display wheel 106 by printing. We are implementing. This enables a mode display that matches the electrical mode setting state.

Reference numerals 109 and 110 denote a mode display wheel holding plate and an hour wheel holding plate, respectively, which are holding members for vehicles related to the auxiliary hand display and vehicles related to the mode display. The mode display wheel holding plate 109 is the same as the dial plate 72 and has a window hole 1 for mode display.
09a. In the present embodiment, the mode display section is set at 6 o'clock. However, according to the mode display structure of the present invention, the display section is located at any position within the range in which the mode display section of the mode display wheel 106 rotates. Because it can be set, the degree of freedom in design increases. Also, the mode display wheel holding plate 1
Reference numeral 09 has a step 109b substantially near the bottom of the inner teeth of the mode display wheel 106 so as not to rub the mode printing surface of the mode display wheel 106. The mode display wheel holding plate 109 may have a structure in which the teeth of the mode display wheel 106 are held with a certain gap in cross section, and a step is formed on the outer peripheral portion to protect the printing surface. Further, the hour wheel holding plate 110 positions the cross section of the hour wheel 10 disposed at the center of the timepiece. The upper portion of the hour wheel 10 of the hour wheel holder 110 has bending portions 110a and 110b, and is located between the mode indicating wheel holder 110 and the mode indicator wheel holding plate 109. This prevents lifting of the hour wheel 10 via the dial 72 and the mode display wheel holder 109 when the hour hand 12 is engaged with the leading end of the hour wheel 10, so that the hour wheel 12 meshes with the hour wheel 10. There is an effect that kana 9b and the 24:00 intermediate wheel 111 can be completely eliminated.

In FIG. 12, a switch lever 25 as a switch member is rotated about a rotating shaft 1a formed on the main plate via a shim 23 as the winding stem 22 is pulled out. The second stage is electrically connected to the pattern 30i formed on the circuit board, and the second stage is electrically connected to the pattern 30j. Thus, the correction state of the hour and minute hands and the date is created by the combination with the contact state of the mode contact spring 105 with the circuit pattern described above.

In FIG. 11, reference numeral 10 denotes an hour wheel, which indicates the hour by the above-described front wheel train configuration. Reference numeral 111 denotes a 24:00 intermediate wheel that meshes with the hour wheel, and 112 denotes a 24:00 wheel that meshes with the intermediate 24:00 wheel. Reference numeral 113 denotes a DT24 intermediate wheel that meshes with the hour wheel, and 114 denotes a DT24 intermediate wheel.
It is a DT 24:00 wheel that meshes with the hour intermediate wheel. 24 o'clock car 11
2 and DT 24 hour wheel 114, 1/10 CG mentioned above
The wheel 21 is an auxiliary hand pointer wheel arranged at an equal distance from the center of the clock body. With these back train wheel configurations, 24
Hour and dual time 24 o'clock are displayed. FIG.
Reference numerals 4 and 16 are cross-sectional views showing the wheel train meshing state for the 24-hour dual time 24-hour display. As shown in the figure, the 24-hour wheel 112 and the DT 24-hour wheel 114 are the hour wheel 10
From the intermediate car at 24:00 and the intermediate car at DT at 24:00
The vehicle is decelerated to 2 and functions as an auxiliary hand wheel indicating 24 hours. The DT 24-hour wheel 114 has a structure in which the dual time can be corrected independently by pulling out the winding stem 22 one step. By pulling out the winding stem 22 by one step, the operation of the above-described setting lever 23 and the latch 24 causes the continuous wheel 26 to move.
Moves and meshes with the DT 24:00 correction wheel 115. By rotating the winding stem 22 in this state, the DT24: 00 correction wheel 115 rotates, and the DT24: 00 wheel 114 meshing with the DT24: 00 correction wheel 115 rotates. The DT 24 hour wheel is linked with the hour wheel 10 and the DT 2 hour intermediate wheel 113. However, since the gear portion 113a and the pinion 113b of the DT 24 hour intermediate wheel 113 have a structure capable of slip rotation, the winding stem 22 By this operation, the DT 24 hour wheel 114 can be independently corrected and dual time display can be performed.

Next, the circuit configuration of the multifunction electronic timepiece of the present invention will be described.

FIG. 17 shows a circuit connection diagram of the CMOS-IC 32 and other electric elements. In FIG. 17, 2 is a silver oxide battery, 3 d is a coil block of a step motor A, 1
3b is a coil block of the step motor B, 37 and 3
8 is a buzzer driving element, 37 is a booster coil, 3
8 is a mini-mold transistor with a protection diode, 39
Is a 0.1 μF chip capacitor for suppressing a voltage fluctuation of a constant voltage circuit built in the CMOS-IC 32, and 41 is an ultra-small tuning fork type crystal serving as a vibration source of an oscillation circuit built in the CMOS-IC 32. A vibrator, 40 is a slow / fast condenser for adjusting the rate, and 53 is a piezoelectric buzzer. 4
5 is an A switch and 46 is a B switch, which is input only when the push button switch is pushed. Reference numeral 47 denotes a C switch, and 48 denotes a D switch, which serves as a switch with the above-mentioned switch lever 25 and electrically determines the position where the winding stem 22 is pulled out. When the switch C47 is closed, the winding stem 22 is in the second stage, and when the switch D48 is closed, the winding stem 22 is in the first stage, and the switch C47 and the switch D4 are closed.
When the opening 8 is open, it is determined that the winding stem 22 is at the normal position. 49 is an RA 1 switch, 50 is an RA 2 switch,
Reference numeral 51 denotes an RB1 switch, which electrically switches modes according to the switch patterns 30e, 30g, and 30f of the mode switching unit described above. 52 is FB2 switches, thereby enabling the system reset CMOS-I C by simultaneous input of the A switch 45 and B switch 46. Reference numeral 28p denotes a battery positive terminal spring for applying a positive potential to the booster coil 37 described above.

FIG. 18 shows the CMOS-I used in this embodiment.
The block diagram of C20 is shown. As shown in FIG.
The OS-IC 32 is a one-chip microcomputer for an analog electronic timepiece that integrates a program memory, a data memory, four motor drivers, a motor operation control circuit, a sound generator, an interrupt control circuit, etc. on a single chip centering on a core CPU. It is. Hereinafter, FIG. 18 will be described.

[0034] 201 is a core CPU, ALU, operation register, the address control register, a stack pointer, an instruction register, is constituted by the instruction decoder, and the like, addressed by the memory-mapped I / O system and peripheral circuit bus ( adbus) and a data bus (dbus).

Reference numeral 202 denotes a program memory composed of a mask ROM having a 2048 word × 12 bit configuration.
The software for operating C is stored.

Reference numeral 203 denotes an address decoder of the program memory 202.

Reference numeral 204 denotes a data memory comprising a 112 word × 4 bit RAM, which is used as a timer for various kinds of timekeeping, a counter for storing the positions of the hands of the hands, and the like.

Reference numeral 205 denotes an address decoder of the data memory 204.

Reference numeral 206 denotes an oscillation circuit which includes Xin and Xo
The tuning fork type crystal resonator connected to the ut terminal is 327
Oscillates at 68 Hz .

Reference numeral 207 denotes an oscillation stop detection circuit which detects when the oscillation of the oscillation circuit 206 stops, and resets the system.

Reference numeral 208 denotes a first frequency dividing circuit,
The frequency of the 32768 Hz signal φ _32K output from 06 is sequentially divided to output a ₁₆ Hz signal φ ₁₆ .

[0042] 209 is a second frequency divider, a 16Hz signal phi ₁₆ 1 Hz signal phi ₁ or in the frequency division output from the 208 of the first frequency divider. The state of each frequency division stage from 8 Hz to 1 Hz can be read into the core CPU 201 by software.

In the IC of this embodiment, a 16 Hz signal φ ₁₆ , an 8 Hz signal φ ₈ , and a 1 Hz signal φ are used as time interrupts Tint for processing such as clock measurement.
₁ is used. The time interrupt Tint is generated at the falling edge of each signal, and the reading, resetting and masking of each interrupt cause are all performed by software, and the reset and mask can be individually performed for each cause.

Reference numeral 210 denotes a sound generator which forms a buzzer drive signal and outputs it to the AL terminal. The drive frequency, ON / OFF, and ringing pattern of the buzzer drive signal can be controlled by software.

Reference numeral 211 denotes a stopwatch circuit,
1/100 when configuring a 100 second stopwatch
The hand movement control of the second hand can be performed by hardware, and the load on software can be significantly reduced.

Reference numeral 212 denotes a motor movement control circuit, which is specifically configured as shown in FIG. 20 , and outputs a motor drive pulse to each motor driver based on a command from software. Hereinafter, FIG. 20 will be described.

Reference numeral 219 denotes a motor hand operation control circuit.
In addition to storing the hand operation method of each motor in accordance with a command from software, Sa for selecting the forward drive I, Sb for selecting the forward drive II, Sc for selecting the reverse drive I,
The control signals Sd for selecting the reverse rotation drive II and Se for selecting the normal rotation correction drive are formed and output.

Reference numeral 220 denotes a hand movement reference signal forming circuit which is specifically configured as shown in FIG. 19 , and forms and outputs a hand movement reference clock Cdrv in accordance with a command from software.

In FIG. 19 , reference numeral 2201 denotes a 3-bit register, which stores data for determining the frequency of the hand driving reference clock Cdrv in accordance with a command from the software (output signal of the address decoder 2202). Reference numeral 2203 denotes a 3-bit register, which captures and stores the data stored in the register 2201 at the falling edge of the hand movement reference clock Cdrv output from the programmable dividing cycle 2205. Reference numeral 2204 denotes a decoder corresponding to the data stored in the register 2203;
The numbers 2, 3, 4, 5, 6, 8, 10, 16 are output in binary form. 2205 is a programmable frequency divider,
256 Hz signal φ output from first frequency dividing circuit 208
_Assuming that the numerical value output from the decoder 2204 is n, ₂₅₆ is divided into 1 / n and output. Therefore, the hand movement reference signal forming circuit 220 changes the frequency of the hand movement reference clock Cdrv to 128 Hz, 85.
3Hz, 64Hz, 51.2Hz, 42.7Hz, 32
Hz, 25.6 Hz, and 16 Hz. The frequency of the hand movement reference clock Cdrv is changed at the time when the data is taken into the register 2203, and the data is taken into the register 2203 in synchronization with the hand movement reference clock Crdv. When switching to the next frequency fb, an interval of 1 / fa is always ensured.

When the forward rotation drive I and the reverse rotation drive are performed in combination, the frequency of the hand movement reference clock Cdrv is limited to 64 Hz or less.

[0051] 221 is a first drive pulse forming circuit, and outputs to form a drive pulse Pa for forward drive I as shown in FIG. 21.

[0052] 222 is a second drive pulse forming circuit, and outputs to form a drive pulse Pb for forward drive II as shown in FIG. 22.

Reference numeral 223 denotes a third drive pulse forming circuit which forms and outputs the drive pulse Pc for the reverse rotation drive I shown in FIG .

Reference numeral 224 denotes a fourth drive pulse forming circuit which forms and outputs a drive pulse Pd for the reverse rotation drive II shown in FIG .

Reference numeral 225 denotes a fifth drive pulse forming circuit.
Pulse group Pe for correction drive (Japanese Patent Application Laid-Open No. 60-260883)
, A normal drive pulse P ₁ , a correction drive pulse P ₂ , an AC magnetic field detection pulse P ₃ , an AC magnetic field detection pulse SP ₁ , and a rotation detection pulse SP ₂ ).

Reference numerals 226, 227, 228, and 229 denote motor clock control circuits, which are specifically configured as shown in FIG. 25, and control the number of hand movement pulses of the step motor in accordance with a command from software.

In FIG. 25, reference numeral 2261 denotes a 4-bit register which stores the number of hand movement pulses instructed by software. Reference numeral 2262 denotes a 4-bit up counter, which counts the hand movement reference clock Cdrv passing through the AND gate 2274, and is reset by the control signal Sreset. 2263 is a coincidence detection circuit,
The contents of the register 2261 and the contents of the up counter 2262 are compared, and when they match, a match signal _Dy is output. 2264 is an all 1 detection circuit, the contents of the register 2261 outputs the all-1 detection signal D ₁₅ when all ones. 226
Numeral 5 denotes a trigger signal generating circuit for forming a motor drive pulse, which is composed of NOT gates 2266 and 2267, a three-input AND gate 2268, a two-input AND gate 2269, and a two-input OR gate 2270, and all 1 (15) are set in the register 2261. When it is done, it keeps outputting the motor pulse repeatedly until other data is set,
When data other than all 1 is set, a motor pulse is output for that data, and the motor pulse output is stopped until the next data is set. Reference numeral 2271 denotes a bidirectional switch, and the control signal Sre
ON when the ad is output, the up counter 226
2 on the data bus. Reference numeral 2272 denotes a control signal forming circuit, and a register 226 is controlled by a command from software.
A signal Sset for setting the number of hand movement pulses to 1 and a signal S for reading data of the up counter 2262.
read, register 2261 and up counter 226
2 is formed and output. When the signal Sread is output, NOT
The passage of the hand movement reference clock Cdrv is prohibited by the gate 2273 and the AND gate 2274. In this case, after reading, a signal Reset is generated to register 2
261 and the up counter 2262 need to be reset. When the coincidence detection circuit 2263 detects a coincidence (when the set pulse number has been output), each motor generates a motor control interrupt (Mint). When a motor control interrupt occurs, it is possible to read which interrupt has occurred by software, and to reset after the reading.

Reference numerals 230, 231, 232, and 233 denote trigger forming circuits, and the hand movement control signals Sa, Sb, Sc, and Sd output from the motor hand movement control circuit 219.
The trigger signal Tr output from the motor clock control circuit in response to Se is set to 221, 222, 223, 224,
225 each drive pulse control circuit is a motor drive pulse P
a, Pb, Pc, Pd, and Pe are passed as trigger signals Sat, Sbt, Sct, Sdt, and Set for forming Pe.

Reference numerals 234, 235, 236, and 237 denote motor drive pulse selection circuits, and the hand movement control signals Sa, S
b, Sc, Sd, and Se, corresponding to the motor drive pulses Pa, Pb, Pc, output from each drive pulse forming circuit.
A drive pulse required for each step motor is selected and output from Pd and Pe. This is the end of the description of FIG.

In FIG . 18, 213 , 214, 21
Reference numerals 5 and 216 denote motor drivers, which alternately output motor drive pulses output from the motor drive pulse selection circuit to two output terminals of each motor drive circuit to drive each step motor.

Reference numeral 217 denotes an input control and reset circuit, which includes A, B, C, D, RA1, RA2, RB1, and RB2.
, And the input terminals of K, T, and R are processed. Any one of A, B, C, D or any one of RA1, RA2, RB1, RB2
When two switches are input, switch interrupt Swi
nt. At this time, reading and resetting of the interrupt factor are performed by software. The input terminals are all pulled down to V _SS, and become data 0 in an open state and data 1 in a state of being connected to V _DD .

In FIG . 17, the K terminal and D1, D2,
D3 and D4 (not shown) terminals are specification switching terminals, and several types of specifications can be selected according to the data of these terminals. The reading of data from these terminals is performed by software.

The R terminal is a system reset terminal.
When the terminal is connected to V _DD , the core C
The PU, the frequency divider, and other peripheral circuits are forcibly set to the initial state.

[0064] T terminal is a test mode conversion terminal, R
A2 , by inputting a clock to the T terminal with the terminal connected to V _DD , a 16
Test mode can be switched. The main test modes are forward I confirmation mode, forward II confirmation mode,
It has a reverse I confirmation mode, a reverse II confirmation mode, a correction drive confirmation mode, a chronograph 1/100 second confirmation mode, and the like. In these confirmation modes, the motor drive pulse output terminals are automatically connected to the motor drive pulse output terminals. A drive pulse is output.

The system reset can be performed by simultaneous input of a switch in addition to the method of connecting the R terminal to V _DD . In this IC, when simultaneous input of A, B, and RB2 occurs, hardware reset is performed by hardware. The system is forcibly reset.

There are a frequency divider reset and a peripheral circuit reset as reset functions that can be processed by software. When the peripheral circuit reset is performed, the frequency divider is also reset.

Reference numeral 218 denotes an interrupt control circuit, which performs prioritization of each of the switch interrupts, chronograph interrupts, and motor control interrupts, stores the data until reading is performed, and performs reset processing after reading.

Reference numeral 200 denotes a constant voltage circuit, which is driven from a battery voltage (about 1.58 V) applied between V _{DD and} V _SS to about 1.2 V
And outputs of the formed V _si pin low constant voltage.

The description of FIG. 18 has been completed.

As described in detail above, the CMOS-
The IC 32 has the following features regarding the drive of the step motor, and is a multi-hand type multi-function analog electronic timepiece IC.
Very excellent as C. Motor driver 213,
214, 215 and 216, and can drive up to four step motors simultaneously. A hand movement control method control circuit 219 has a driving pulse form circuit 221 through 225 and the motor drive pulse selection circuits 234-237, by software, each step motor up to four three forward drive and two Can be driven in reverse. A hand movement reference signal forming circuit 220;
The hand movement speed of each step motor can be freely changed by software. Motor clock forming circuits 226-2 corresponding to each of the four step motors
29, and the number of hand movement pulses of each step motor can be freely set by software.

FIG. 26 is an external view of a completed multifunctional electronic timepiece of the present embodiment. 60 is an exterior case, 72 is a dial. Crown 61, 2 o'clock, linked to the winding stem at 3 o'clock,
Buttons 45a and 46a are arranged at the 4 o'clock position. In the center of the clock body, the hour hand 12, minute hand 11, center hand 20
And displays the hour, minute, stopwatch second, or day, respectively. The sub-hands located at the same distance from the center of the watch body are a 1/10 second chronograph hand 64 at 12 o'clock and a dual time 24-hour hand 66 , 9 at 3 o'clock.
The 24-hour hand 65 is at the hour position. A mode display window 72a for displaying a function at 6 o'clock is provided on the dial, and a mode display wheel 106 displays a function below the mode display window 72a. In the present embodiment, the following six mode displays are provided, and the function corresponding to each mode display is performed. The six mode displays are "TIME",

[Outside 1]

Of the six modes, in the 0 position set mode indicated by “→ 0 ←”, the hour hand 12 and the minute hand 1
1, center hand 20, 1/10 second chronograph hand 64,
The reference position of the 24-hour hand 65 is set. Crown 61
Is rotated, and among the mode switching switches RA130e, RA230g, and RB130f shown in FIG.
When only the switch 51 of the RB 130f is turned on, the mode becomes the 0 position set mode. When the crown 61 is in the first position (when D48 is on), when the A switch 45 is turned on, the 1/10 second chronograph hand 64 moves clockwise in steps of one step (hereinafter referred to as forward rotation direction). The hand is moved, and the center hand 20 is also moved in conjunction with the movement. B switch 46
Is input, the 1/10 second chronograph hand 64 moves in the counterclockwise direction (hereinafter referred to as the reverse direction), and in conjunction with this, the center hand 20 also moves. By continuing to press the A or B switches 45 and 46, the hand can be fast-forwarded and the 0 position can be set quickly, but the reference clock Cdrv for hand movement at this time is 128 Hz in the normal rotation direction.
51.2 Hz is used in the reverse direction. Similarly, when the crown 61 is at the second stage (when C47 is on), pressing the A or B button 45a, 46a causes the hour hand 1 to move.
2. The reference positions of the minute hand 11 and the 24-hour hand 65 can be set. The number of hand movement steps, hand movement direction, and hand movement reference clock Cdrv are the same as in the case of setting the center hand 20 and the 1/10 second chronograph hand 64. The reference clock for hand movement is 128H in the normal rotation direction even in other modes.
z, the reverse direction is 51, 2 Hz. In any mode, based on the position set in the 0 position set mode, the current position of each hand is always stored in the data memory 2.
The information is stored in a needle position counter formed in a part of the pointer 04.

FIGS. 27 and 28 are flowcharts of the normal time mode indicated by the indication "Time". The normal time mode is set when none of the mode switching switches are turned on. When the multi-function electronic timepiece of the present invention is used, it is expected that the time used in the normal time mode is the longest. Therefore, in this mode, since all the mode switching switches are turned off, the average current consumption is reduced. It can be expected to reduce the battery life and extend the life of the battery used. FIG. 27, FIG.
As shown in (1), when an interrupt of 1 Hz is input, 1 is added to a 15-second counter formed in a part of the data memory 204, and when the value of the 15-second counter is 15, the motor hand operation mode control circuit 219 Step motor A
3 forward rotation drive is set and the motor clock control circuit A22 is set.
Set the number of hands 1 to 6.

The correction of the current time is performed with the crown 61 at the second stage. Assuming that the crown 61 is the second stage, the hour and minute hands 12, 11 are moved in the forward direction to the position of the minute. Each time the button 45a (A switch 45) is pressed, the hour and minute hands 12, 11 are moved in the forward direction in units of one minute. Each time the button 46a (B switch 46) is pressed, the hour and minute hands 12, 11
Is moved in the reverse direction in units of one minute. By pressing and holding the button 45a or 46a, the hand is moved at a rapid traverse,
Correction in a short time is possible.

The date is corrected when the crown 61 is in the first position. Crown 61 centers the needle 20 by pressing the ball <br/> button 45a in the state in the first stage is hand movement every day forward direction. Each time the button 46a is pressed, the center hand 20 is moved in the reverse direction every day. Similarly to the correction of the current time, it is possible to correct the fast forward by holding down the button 45a or 46a. When the current time reaches 24:00, the center hand 20 pointing to this date instantaneously rotates the chronograph hand at 1/10 seconds instantaneously to advance the date by one day. You can check the date clearly.

FIGS. 29 and 30 show flowcharts of the stopwatch function. Note that “CG” used in FIGS. 29 and 30 means a stopwatch. Also,
“CG start” indicates that the stopwatch measurement is being performed and the split display is released. RA13 by crown rotation
When the switch 49e of 0e is on and the crown is at the 0th stage (the C and D switches are off), a stopwatch display and measurement operation can be performed. Each time the button 45a (A switch 45) is input, the start and stop of the stopwatch measurement are repeated. When the stopwatch measurement is started, the CG 1/10 second counter formed in a part of the data memory 204 by the CG interrupt is incremented by +
When the 1/10 second chronograph hand 64 is moved every 3 steps at 1/10 second intervals and the 1/10 second counter counts 15 seconds, the data memory 2
The CG 15 second counter formed in a part of the part 04 is incremented by one, and the minute hand 11 is moved every 15 seconds. Also, when the button 46a (B switch 46) is input at the time of "CG start", a split display state is set, and when the button 46a (B switch 46) is input in the split display state, "C" is input.
G start ", 1/10 second chronograph hand 64,
Center hand 2 indicating the second of the measurement time linked to this
The 0, the hour hand 12 and the minute hand 11 are fast-forwarded until the measured time is displayed. If the button 46a (B switch 46) is input while the stopwatch is stopped, the stopwatch measurement is reset and the dual time 24 stitches 6
Each hand other than 6 is fast-forwarded until the 0 position is displayed. When there is no crown or button operation for 10 minutes in the stopwatch measurement state, the 1/10 second chronograph hand performs a sector-shaped hand movement centering on the 0 position as shown in FIG. Normally, during the stopwatch measurement, 30 motor pulses are generated per second. However, when the hand moves as shown in FIG. 31, only three motor pulses are generated per second to extend the battery life. You can see at a glance that the stopwatch is being measured.

FIGS. 32, 33 and 34 show flowcharts of the timer function. The timer setting time is indicated by the minute hand 11. When the switches 49 and 51 of the RA 130e and the RB 130f are turned on by turning the crown, the timer mode is set. When the crown is turned to the second stage (the C switch 47 is turned on), the set time can be changed. Each time the button 46a (A switch 46) is input, the set time can be increased by one minute (4 steps). Each time the button 46a (B switch 46) is input, the set time can be reduced by one minute. By pressing and holding either button, fast forward can be set. Settings up to a maximum of 60 minutes are possible. Crown 61
Is the 0th stage, the timer measurement operation becomes possible. After switching from another mode to the timer mode, the timer set time is preset by inputting the button 46a (B switch 46), and the minute hand 11 is fast-forwarded to the set time. The start / stop of the timer is performed by a button 45a (A switch 45). When the timer operation starts, the center hand 20 moves counterclockwise for 30 seconds per second.
Every step, the minute hand 11 moves counterclockwise for 15 seconds,
Displays the remaining time of the timer. However, when the remaining timer time is 5 minutes or more, the 1/10 second chronograph hand 64 performs the same sectoral movement as in the case where the stopwatch measurement is 10 minutes or more, and only the minute hand 11 displays the remaining time. The beeper sounds three seconds before the remaining time, and when the time reaches 0 seconds, a time-up sound sounds and the timer operation ends.

FIG. 35 shows a flowchart of the alarm setting function. RA 230g and RB by crown rotation
When the switches 50 and 51 of 130f are on, the alarm set mode is set, and the hour hand 12, the minute hand 11 and the 24-hour hand 6
5. The dual time 24-hour hand 66 is moved in rapid traverse until the alarm set time is displayed. To correct the alarm set time, use the second stage crown (C switch 47).
Is turned on), the minute hand 11 is moved one minute in the forward direction each time the button 45a (A switch 45) is pressed, and one minute in the reverse direction each time the button 46a (B switch 46) is pressed.
Is operated and the alarm set time can be corrected. Button 45a or button 46a as in the other correction modes
By continuing to press, the minute hand is moved forward or backward in rapid traverse, so that correction can be made in a short time. When the crown is in the second position, the hour hand 12, minute hand 11, 2
While the 4 o'clock hand 65 and the dual time 2 o'clock hand 66 are self-propelled to the alarm set time, the self-propelled can be stopped by pressing the button 45a or 46a, and the stopped position can be set as the alarm set time.

When only the switch 230 of the RA 230g is turned on by turning the crown, the hour hand 12, the minute hand 11 and the 24-hour hand 65 enter a mode indicating a normal time. In this state, the alarm set time set in the alarm set mode and the current time are set. If a match is found, the alarm sounds.

FIG. 36 is a flowchart showing a method of rotating the crown and determining the direction of fast-forward movement of each hand when the mode is switched. When switching from one mode to another mode, the self-propelled hand moves to the display support position of the current mode by rapid traverse because the display contents of each mode are different. It is going to be short. This is the same not only when the mode is switched, but also when each hand runs in the stopwatch mode or the timer mode.

FIGS. 37 and 38 show flowcharts of a method for moving the hands of each motor. FIG. 37 shows a method of moving the motor when the number of hand movements is 14 or less. FIGS. 38 (a) and 38 (b)
Is a fast-forward hand movement method of 15 or more rounds. The "motor pulse register" in the figure is the register 2261 in FIG.
That is.

Also, immediately after the system is reset when the crown is set to the second stage, a demonstration operation of one reverse rotation and one normal rotation is performed for each motor, thereby magnetizing the rotor magnets of the step motors A3 and B13. Direction can be uniquely determined. That is, the rotor can be adjusted to a position that always matches the hand operation pulse signal after the system reset. Also, by attaching the 1/10 second chronograph hand and the center second hand to the 0 position at this position, even if the system is reset after the 0 position adjustment, normal hand movement can be performed without shifting the 0 position.

The multifunction electronic timepiece of the present invention has a time alarm function, a 12-hour alarm function, etc. in addition to the above functions. And whether the D1, D2, and D3 terminals are connected to V _DD . For this reason, it is possible to configure a clock having several types of specifications with one IC.

[0084]

As described above, according to the present invention, the following effects can be obtained. 1) The mode display section is not limited to the 6 o'clock position, and is in a range in which the mode display section of the mode display member rotates.
It can be placed at any position. Also, by combining a plurality of window holes provided in the dial with characters, marks, and the like marked on the mode display member, an interesting mode display using the entire circumference of the dial is also possible. 2) Since the rotation diameter of the mode display section can be set larger than in the prior art, the size of characters, marks, and the like representing the mode can be increased, and the mode display can be easily read. 3) When the sub-hand display as in the above-described embodiment is used, since many vehicles related to the sub-hand display are arranged on the dial mounting side of the main plate serving as the timepiece base frame, the structure related to the mode display is provided. Although the space that can be used is limited, the structure according to the present invention makes it possible to effectively utilize the limited space and provide a mode display that is easy to see. 4) By providing a dedicated jumping control member for the rotational positioning of the mode member, it is possible to reduce the displacement of the characters and the like representing the mode and to prevent the printing of the characters and the like from being rubbed on the pressing plate member of the mode display member. High quality is assured. 5) The mode display member is provided with a built-in mark to improve the assemblability.

As described above, the effect of the mode display structure of the multifunction electronic timepiece of the present invention is enormous.

[Brief description of the drawings]

FIG. 1 is a front plan view showing an embodiment of a multifunction electronic timepiece according to the present invention.

FIG. 2 is a sectional view showing a time-of-day and minute display wheel train.

FIG. 3 is a sectional view showing a chronograph second and date display wheel train.

FIG. 4 is a sectional view showing a 1/10 second chronograph display wheel train.

FIG. 5 is a sectional view showing a switching structure.

FIG. 6 is a sectional view showing a battery fixing structure.

FIG. 7 is a sectional view showing a switch spring structure.

FIG. 8 is a cross-sectional view illustrating a switch structure.

FIG. 9 is a sectional view showing a button switch structure.

FIG. 10 is a sectional view showing a battery negative conduction structure.

FIG. 11 is a rear plan view showing one embodiment of the multifunction electronic timepiece of the present invention.

FIG. 12 is a sectional view showing a mode correction wheel train and a back wheel train.

FIG. 13 is a sectional view showing a mode correction structure.

FIG. 14 is a sectional view showing a mode correction structure.

FIG. 15 is a sectional view showing a mode correction structure.

FIG. 16 is a sectional view showing a back train wheel.

FIG. 17 is a circuit connection diagram of the embodiment of FIG. 1;

FIG. 18 is a block diagram of the CMOS-IC 32 of FIG. 1;

FIG. 19 is a block diagram showing a specific configuration example of a hand movement reference signal forming circuit 220.

FIG. 20 is a block diagram showing a specific configuration example of a motor hand movement control circuit 212.

FIG. 21 is a timing chart of a motor drive pulse Pa output from a first drive pulse forming circuit 221.

FIG. 22 is a timing chart of a motor drive pulse Pb output from a second drive pulse forming circuit 222;

FIG. 23 is a timing chart of a motor drive pulse Pc output from a third drive pulse forming circuit 223.

24 is a timing chart of a motor drive pulse Pd output from a fourth drive pulse forming circuit 224. FIG.

FIG. 25 shows a motor clock control circuit 226, 227, 2
FIG. 28 is a block diagram showing a specific configuration of 28 and 229.

FIG. 26 is an external view of a completed multifunctional electronic timepiece of the present embodiment.

FIG. 27 is a flowchart of a normal time mode.

FIG. 28 is a flowchart of a normal time mode.

FIG. 29 is a flowchart of a switch watch function.

FIG. 30 is a flowchart of a stopwatch function.

FIG. 31 is a chart showing a fan-shaped hand movement state.

FIG. 32 is a flowchart of a timer function.

FIG. 33 is a flowchart of a timer function.

FIG. 34 is a flowchart of a timer function.

FIG. 35 is a flowchart of an alarm set function.

FIG. 36 is a flowchart of a method for determining a hand movement direction of fast-forward of each hand when a mode is switched.

FIG. 37 is a flowchart of a hand movement method for each motor.

FIG. 38 is a flowchart of a hand movement method for each motor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ground plate 2 Battery 28 Battery plus terminal 29 Wheel train receiver 30 Circuit block 104 Mode correction axle 105 Mode contact spring 106 Mode display car 109 Mode display wheel holding plate

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-263588 (JP, A) JP-A-3-276093 (JP, A) JP-A-4-109390 (JP, U) (58) Field (Int.Cl. ⁶ , DB name) G04C 3/00 G04C 3/14 G04G 1/00

Claims (6)

(57) [Claims] 1. A multi-function electronic timepiece, comprising: a winding stem as an external operating member; a shaft member having a gear for controlling a rotary switch for switching an electric function mode (hereinafter referred to as a mode); A jump control member that engages with the jump control gear and performs rotational positioning of the shaft member; engages with the shaft member so as to be able to rotate integrally with the shaft member; A mode transmission member, a mode display member having a ring shape on which a character string or mark representing the mode is marked, and a mode display member including an internal tooth portion provided on an inner diameter portion of the mode display portion; A correction wheel that engages with the shaft member so as to be rotatable and transmits the rotation of the shaft member to the mode display member, a pressing plate member that positions the mode display member in a cross-sectional direction, and the like. The display member is the internal tooth Meshes with the modified car,
A mode display structure of a multifunctional electronic timepiece, wherein the mode display structure is arranged so as to rotate around a center of the timepiece. 2. The mode display structure of a multifunction electronic timepiece according to claim 1, further comprising a jump control member for positioning the mode display member in a plane. 3. A jump control portion of the jump control member which controls the rotation positioning of the shaft member, and engages the jump control gear with a small flat gap to perform rotation positioning of the shaft member. The mode display structure of the multifunction electronic timepiece according to claim 1. 4. A play is provided between the shaft member and the correction transmission wheel in a rotational direction of at least θ / 2 or more with respect to the rotation angle θ of one mode of the shaft member. The mode display structure of the multifunction electronic timepiece according to claim 1. 5. The apparatus according to claim 1, wherein the mode display member has a mark for indicating a specific position in the rotation direction.
Mode display structure of the multifunction electronic timepiece described. 6. The pressing plate member has a stepped shape at a planar position substantially the same as the root position of the internal teeth of the mode display member, and the stepped shape is low on the center of the clock and on the outer peripheral side. 2. The mode display structure of a multifunction electronic timepiece according to claim 1, wherein the mode display structure is formed to be higher.