CN101398663B - Hand position detecting device and electronic apparatus including the device - Google Patents

Hand position detecting device and electronic apparatus including the device Download PDF

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Publication number
CN101398663B
CN101398663B CN2008101660037A CN200810166003A CN101398663B CN 101398663 B CN101398663 B CN 101398663B CN 2008101660037 A CN2008101660037 A CN 2008101660037A CN 200810166003 A CN200810166003 A CN 200810166003A CN 101398663 B CN101398663 B CN 101398663B
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light
wheel
mentioned
hand
hole portion
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CN101398663A (en
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水津考
青木信裕
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Casio Computer Co Ltd
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Casio Computer Co Ltd
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Abstract

The invention provides a hand position detecting device which detects the rotational positions of seconds hands precisely and reliably. The detection unit (13) detects light passing through apertures (21, 28 and 29) provided in a seconds wheel (20), a center wheel (25) and an hour wheel (27), respectively, which rotate on the same axis. The apertures (21) in the seconds wheel (20) include a circular aperture (21a) provided at a reference position therein, and two apertures (21b) and (21c) provided separated by corresponding arcuate apertures (21d and 21e) of different lengths from the aperture (21a) on its opposite sides, respectively. By counting the number of light non-detection events the detection unit encounters due to the light blocking area (21e) covering the detection unit (13), the rotational position of the seconds wheel (20) is detected accurately and securely.

Description

Hand position detecting device and possess the electronic equipment of hand position detecting device
Technical field
The present invention relates to be used to detect the hand position detecting device of pointer running position of the pointer of second hand, minute hand, hour hands etc.
Background technology
All the time, the known hand position detecting device that pointer clock shown in TOHKEMY 2000-162336 number is arranged.In the hand position detecting device of this pointer clock, possess: the rotation that utilizes first CD-ROM drive motor is transmitted and the second hand wheel that rotates comes second hand is carried out first drive system of pointer running; Utilize second CD-ROM drive motor rotation transmit respectively and the minute wheel of rotation and hour wheel come second drive system that minute hand and hour hands are carried out the pointer running respectively respectively; And at the second hand wheel of first, second drive system, minute wheel, hour wheel during with the state rotation that on same axle, overlaps; With being separately positioned on the test section that each light hole portion of first～the 3rd on second hand wheel, minute wheel, the hour wheel utilizes light-emitting component and photo detector to detect optically; And constituting, thereby the pointer running position of judgement second hand, minute hand, hour hands based on each position of rotation of judging second hand wheel, minute wheel, hour wheel through the detection signal of this test section.
In this occasion, first drive system possesses No. five wheels that the rotation of first CD-ROM drive motor is transmitted to second hand wheel, and three light that are arranged at intervals with 120 on these No. five wheels detect holes.In addition, the first light hole portion of second hand wheel possess along circumference with 11 light of the angle intervals setting of 30 degree detect holes be arranged on these 11 light detect holes the shading hole portion at the place on the continuous circumference.Thus; Thereby constitute this first drive system and detect hole and test section at once at light of No. five wheel rotations; Thereby the light shielding part that also rotates second hand wheel at second hand wheel is corresponding with the light detection hole of No. five wheels; Afterwards, the light of initial second hand wheel detects the hole correspondence and the occasion through the light detection of test section has been arranged, and second hand points to integral point.
In addition, other the first light hole portion as the second hand wheel of first drive system has to possess: the light shielding part that is arranged on the reference position of second hand wheel; In the both sides of this light shielding part with given length along pair of notches hole that circumference is provided with; Be arranged on the same straight line of second hand wheel with respect to light shielding part and a light between the pair of notches hole detects the light hole portion in hole.This first drive system is purchased and is become; Thereby detect hole and test section at once at light of No. five wheel rotations; Thereby second hand wheel also rotates and through the light shielding part of side's incision hole second hand wheel and the light of No. five wheels detect the hole corresponding after; Then thereby the part correspondence of the opposing party's of second hand wheel incision hole has had the occasion through the light detection of test section, and second hand points to integral point.
Yet first drive system of this existing hand position detecting device is because three light of again rotation of first CD-ROM drive motor being gone up with 120 to No. five wheels of second hand wheel transmission that are arranged at intervals with detect the hole; Therefore, detect hole and test section at once, position of rotation that must the detection second hand wheel at light of these No. five wheels; Therefore; When No. five wheels are assembled with second hand wheel, need carry out this both contraposition, thereby the problem that exists assembling operation to become numerous and diverse and so on.
In addition; In the former first drive system of this hand position detecting device; The first light hole portion of second hand wheel since be possess along the circumference of second hand wheel with 11 light of the angle intervals setting of 30 degree detect holes be arranged on these 11 light detect holes the structure of shading hole portion at the place on the continuous circumference; Therefore, see through 11 each light detect holes light to see through tolerance few.Therefore, when carrying out position probing at the rotation second hand wheel, if the high speed rotating second hand wheel then exists and can not detect the danger that 11 light detect the hole reliably, the problem of position probing limited speed system during existence runs up and so on.
In addition, in the latter's first drive system, owing to be to possess: a light that is arranged on the reference position of second hand wheel detects the hole; And the both sides of detecting the hole at this light are along the structure of circumference across the pair of notches hole that the light shielding part at given interval is provided with, thereby the seeing through of light that sees through the pair of notches hole allows that quantitative change is many, can carry out the position probing of second hand wheel with high speed rotating; But constitute; Detect hole and test section at once at the light of No. five wheels, thus through the light shielding part of side's incision hole second hand wheel of second hand wheel and the light of No. five wheels detect the hole corresponding after, thereby the then corresponding occasion that the light detection of passing through test section has been arranged of the part of the opposing party's of second hand wheel incision hole; Second hand points to integral point; Therefore, no matter test section is corresponding with which part of the opposing party's incision hole, all is judged as second hand and points to integral point; Therefore, the existence problem of the position of rotation and so on of specific second pinwheel exactly.
Summary of the invention
The object of the present invention is to provide a kind of can be exactly and detect the hand position detecting device of the position of rotation of second hand wheel reliably.
In order to achieve the above object, the present invention possesses following inscape.
Relate to the hand position detecting device of an invention, possess: the rotation that utilizes first CD-ROM drive motor is transmitted and the second hand wheel that rotates comes second hand is carried out first drive system of pointer running; Utilize second CD-ROM drive motor rotation transmit respectively and the minute wheel that rotates and hour wheel come second drive system that minute hand and hour hands are carried out the pointer running respectively; And has a luminescence unit; Be used for when above-mentioned second hand wheel, above-mentioned minute wheel, above-mentioned hour wheel rotate with the state that on same axle, overlaps; Thereby detection is not separately positioned on the test section that this each first～the 3rd each light hole portion of taking turns utilizes each position of rotation of judging above-mentioned second hand wheel, above-mentioned minute wheel, above-mentioned hour wheel from only seeing through of above-mentioned luminescence unit; It is characterized in that
The above-mentioned first light hole portion possesses: first light that is arranged on the preposition of above-mentioned second hand wheel detects the hole; And detect at this first light the hole above-mentioned second hand pointer rotation direction side and detect hole with the both sides of its reverse direction side across second, third each light that first, second each light shielding part of different interval is provided with.
According to the present invention, when carrying out the detection through test section at the rotation second hand wheel, can making the number that do not detect through test section, detect first light shielding part of both sides in hole at first light that is positioned at second hand wheel different with second light shielding part.Therefore, utilize the different not detection number through test section is counted, can be exactly and detect the position of rotation of second hand wheel reliably.
For example; Count to the not detection number that first light detects second light shielding part in hole detecting the hole from the 3rd light that is positioned at a side opposite with the pointer rotation direction of second hand; At this number of counting is predefined to after fixing a number; When and then test section detected first light detection hole, the predefined position of decidable second hand wheel was consistent with test section.Thus, can be exactly and detect the position of rotation of second hand wheel reliably.
Relate to the hand position detecting device of another invention, possess:
Have by be arranged on datum hole on the preposition, be arranged on different length the both sides of this datum hole first, second each light shielding part, across second, third each slotted holes of these first, second each light shielding part settings constitute second hand wheel;
Be configured on the same axle with this second hand wheel, and have the minute wheel of the second light hole portion;
Be configured on the same axle with above-mentioned second hand wheel and above-mentioned minute wheel, and have the hour wheel of the 3rd light hole portion;
The light hole portion detecting unit of only not judged each position of rotation of above-mentioned second hand wheel, above-mentioned minute wheel, above-mentioned hour wheel through above-mentioned first～the 3rd each light hole portion that detection is sent from above-mentioned luminescence unit, wherein, test section has luminescence unit; And
Rotate above-mentioned second hand wheel with predefined rotation angle unit on one side; Have or not on one side through what above-mentioned light hole portion detecting unit carried out that light detects; The light that detects at the light that does not determine not through this light hole portion detecting unit not read-around ratio of detected state has reached predefined number of times; And thereafter; Determine when being further rotated above-mentioned second hand wheel with predefined rotation angle unit, above-mentioned light hole portion detection goes out the occasion of the light that sends from above-mentioned luminescence unit, is the second hand reference position detecting unit of the position of datum hole with the position of the detected light of this light hole portion detecting unit as the reference position of above-mentioned second hand wheel.
According to the present invention; When second hand wheel rotates with predefined rotation angle unit; Utilize second hand assigned position detecting unit; After the read-around ratio of the not detected state that the light through light hole portion detecting unit not detects is predefined number of times, and then light hole portion detecting unit is detected the position of the datum hole of second hand wheel, the predefined position that can be used as second hand wheel is judged.Thus, can be exactly and detect the position of rotation of second hand wheel reliably.
Description of drawings
Fig. 1 is the vertical view that the clock module in the embodiment of pointer type wristwatch of this invention has been used in expression.
Fig. 2 is the amplification stereogram of major part of the clock module of presentation graphs 1.
Fig. 3 A, Fig. 3 B cover amplification plan view, the mode chart of major part that side has been observed the clock and watch motion means of Fig. 2 from the back of the body.
Fig. 4 is the amplification view of the major part of presentation graphs 2.
Fig. 5 is the amplification plan view of the second hand wheel that decomposed Fig. 3, minute wheel, hour wheel.
Fig. 6 is the figure that has or not that detects the hole with each umber of pulse of having represented first drive system of Fig. 2 and the number of teeth of each gear in second drive system, each rotation angle of a pulse, a rotation, light.
Fig. 7 is an amplification plan view of having represented the second hand wheel of Fig. 5.
Fig. 8 is the figure for the check pattern of Fig. 7 second hand wheel of expression through test section.
Fig. 9 is an amplification plan view of having represented the hour wheel of Fig. 5.
Figure 10 A～Figure 10 M is the basic position probing action of the second hand wheel of presentation graphs 7, representes the figure of each state when P rotated for 2 steps (12 °) at every turn from the detection position with second hand wheel.
Figure 11 A～Figure 11 P is minute wheel, the hour wheel of presentation graphs 5, the basic position probing action of breast wheel, the figure of each state of the minute wheel when expression rotated for 1 step (12 °) with the minute wheel of Figure 11 A～Figure 10 M at every turn, hour wheel, breast wheel; Figure 11 N is the figure of each state of minute wheel, hour wheel, breast wheel when the state of Figure 11 M rotated for 360 steps (being equivalent to one hour) with minute wheel; Figure 11 O is the figure that minute wheel has been rotated each state of minute wheel when being equivalent to nine hours, hour wheel, breast wheel from the state of Figure 11 N; Figure 11 P is the figure that the state from Figure 11 O has rotated minute wheel each state of minute wheel on " 11: 00 position " that is equivalent to hour, hour wheel, breast wheel.
Figure 12 A～12F is the position probing action of the only second hand wheel of presentation graphs 5, and expression makes the figure of each state of reference position when detection position P moves of the second hand wheel that has departed from detection position P.
Figure 13 A～13F is the position probing action of minute wheel and the hour wheel of presentation graphs 5, and expression makes the figure of each state of reference position when detection position P moves of the minute wheel that departed from detection position P and hour wheel.
Figure 14 A～14F is that the position probing action of the occasion of detection position P has been departed from second hand wheel, the minute wheel of presentation graphs 5, the reference position of hour wheel, and expression makes the figure of each state of reference position when detection position P moves of the second hand wheel that departed from detection position P, minute wheel, hour wheel.
Accurately whether each integral point that Figure 15 A～15F is expression each pin position of confirming second hand, minute hand, hour hands when pointer running usually pin location confirmation action, and the figure of each operating state in per two seconds of expression second hand wheel, minute wheel, hour wheel.
Figure 16 is the block scheme that the circuit of the wrist-watch of this embodiment of expression constitutes.
Figure 17 is the figure that the basic second hand position probing that moves to detection position P reference position that expression makes second hand is handled motion flow.
Figure 18 be the expression reference position that makes minute hand, hour hands to detection position P move basic the time minute hand position probing handle the figure of motion flow.
Figure 19 is that expression makes the second hand position probing of reference position in the three basic pin position probing that detection position P moves are handled of second hand, minute hand, hour hands handle the figure of motion flow.
Figure 20 is that expression makes the minute hand position probing of reference position in the three basic pin position probing that detection position P moves are handled of second hand, minute hand, hour hands handle the figure of motion flow.
Figure 21 is that expression makes the hour hands position probing of reference position in the three basic pin position probing that detection position P moves are handled of second hand, minute hand, hour hands handle the figure of motion flow.
Figure 22 is that expression each integral point during by the running of common pointer confirms that the pin location confirmation of the position of second hand, minute hand, hour hands handles the figure of motion flow.
Figure 23 is the amplification plan view of the second light hole portion of the minute wheel of presentation graphs 5 minute wheel when at every turn rotating for 1 step (1 °) to the amount of movement of the detection position of test section.
Figure 24 is the amplification plan view of first modified example of the second hand wheel of this embodiment of expression.
Figure 25 is the amplification plan view of second modified example of the second hand wheel of this embodiment of expression.
Embodiment
An embodiment of the pointer type wristwatch of having used this invention is described with reference to Fig. 1～Figure 23 below.
This pointer type wristwatch possesses Fig. 1 and clock module shown in Figure 21.This clock module 1 is used for making second hand 2, minute hand 3, hour hands 4 above dial plate 5, to turn round and indicates constantly, is configured in the watch case TK.On watch case TK top watch glass G is installed, the back of the body is installed in the bottom of this watch case TK covers UB.
As shown in Figure 2, clock module 1 constitutes possesses upper body 6 and lower case 7, and between these, is provided with clock and watch motion means 8.On upper body 6, make solar panel 9 mediate and be provided with dial plate 5.In addition, the inner face in lower case 7 is provided with circuit board 10.
Like Fig. 2～shown in Figure 4, clock and watch motion means 8 possesses: first drive system 11 that makes second hand 2 runnings; Make second drive system 12 of minute hand 3 and hour hands 4 runnings; And the test section 13 that is used to detect the pointer running position of second hand 2, minute hand 3, hour hands 4.
First, second drive system 11,12 is configured between upper body 6 and the lower case 7 under the state that is installed on base plate 14, gear row board 15, the middle board 16.
Like Fig. 2～shown in Figure 4, first drive system 11 possesses first step motor 17; No. five wheels 18 by these first step motor, 17 rotations; No. four wheels by these No. five wheel 18 rotations are second hand wheel 20.The second hand axle 20a that second hand 2 is installed in this second hand wheel 20 goes up (with reference to Fig. 4).
As shown in Figure 2, first step motor 17 possesses: coil block 17a; Stator 17b; And rotor 17c.Constitute if to coil block 17a energising, then produce magnetic field, rotor 17c rotates with the angle stepping of 180 degree at every turn.
Like Fig. 2 and shown in Figure 3, the rotor pinion 17d of the rotor 17c of No. five wheel 18 and first step motor 17 meshes and rotates.The pinion wheel 18a of second hand wheel 20 and No. five wheels 18 meshes and rotates.Central part at this second hand wheel 20 is provided with second hand axle 20a.As shown in Figure 2, each through hole 5a that this second hand axle 20a passes upper body 6, solar panel 9 and dial plate 5 gives prominence to the top.As shown in Figure 4, second hand 2 is installed in this leading section of giving prominence to.Like Fig. 5 and shown in Figure 7, the first light hole portion 21 that after being provided with on this second hand wheel 20, states.
On the other hand, like Fig. 2～shown in Figure 5, second drive system 12 possesses second step motor 22; Breast wheel 23 by these second step motor, 22 rotations; No. three wheels 24 by these breast wheel 23 rotations; No. two wheels by these No. three wheel 24 rotations are minute wheel 25; Back gear minutewheel26 by these minute wheel 25 rotations; Cover wheel by these back gear 26 rotations is a hour wheel 27.Minute hand 3 is installed on the minute hand shaft 25a of minute wheel 25.Hour hands 4 are installed on the hour hand axle 27a of hour wheel 27.
As shown in Figure 2, second step motor 22 possesses coil block 22a, stator 22b, rotor 22c.Constitute if to coil block 22a energising, then produce magnetic field, rotor 22c is at every turn with 180 degree stepping rotations.
Like Fig. 2 and shown in Figure 3, the c rotor pinion 22d of the rotor 22 of the breast wheel 23 and second step motor 22 meshes and rotates.The 4th light hole portion 30 as shown in Figure 5, as to state after this breast wheel 23 is provided with.No. three wheel 24 rotates with the pinion wheel 23a engagement of breast wheel 23, and the pinion wheel 24a of minute wheel 25 and No. three wheels 24 meshes and rotates.
Like Fig. 2 and shown in Figure 4, the second hand axle 20a that the central part of this minute wheel 25 is provided with second hand wheel 20 rotate insert freely and to above outstanding minute hand shaft 25a cylindraceous.As shown in Figure 2, each through hole 5a that this minute hand shaft 25a passes upper body 6, solar panel 9 and dial plate 5 gives prominence to the top.As shown in Figure 4, minute hand 3 is installed in this leading section of giving prominence to.Thus, minute wheel 25 is configured on the same axle with second hand wheel 20 with the state of the upside that overlaps second hand wheel 20.In addition, as shown in Figure 5, the second light hole portion 28 that after being provided with on this minute wheel 25, states.
As shown in Figure 2, back gear 26 rotates with the minute hand shaft 25a engagement of minute wheel 25.Hour wheel 27 rotates with the pinion wheel 26a engagement of back gear 26.The minute hand shaft 25a that the central part of this hour wheel 27 is provided with minute wheel 25 rotate insert freely and to above the hour hand axle 27a of outstanding tubular.As shown in Figure 2, each through hole 5a that this hour hand axle 27a passes upper body 6, solar panel 9 and dial plate 5 gives prominence to the top.Hour hands 4 that kind as shown in Figure 4 are installed in the leading section that this is given prominence to.Thus, hour wheel 27 is configured on the same axle with second hand wheel 20 and minute wheel 25 with the state of the upside that overlaps minute wheel 25.In addition, as shown in Figure 5, the 3rd light hole portion 29 that after being provided with on this hour wheel 27, states.
One of the rotation angle of the number of teeth of each gear shown in the table of Fig. 6 in such first, second drive system 11,12 of setting, each gear of a pulse, each gear is rotated having or not of required umber of pulse and first～the 4th light hole portion 21,28～30.
Promptly, the rotor pinion 17d of the rotor 17c of first drive system 11 with a pulse rotate (1 step) 180 degree (with call in the following text the rotating to be of angle " ° "), No. five wheels 18 are with 36 ° of a pulse (1 step of rotor 17c) rotations.No. four cars are second hand wheel 20 because 6 ° of a pulse rotation (1 step of rotor 17c), thereby revolve and turn around with 60 pulses (60 steps of rotor 17c).
The rotor pinion 22d of the rotor 22c of second drive system 12 rotates (1 step) 180 ° with a pulse, and breast wheel 23 is because with 30 ° of a pulse (1 step of rotor 22c) rotations, thereby revolves and turn around with 12 pulses (12 steps of rotor 22c).No. three wheels 24 are with 4 ° of a pulse ( rotor 22c 1 step) rotations, and minute wheel 25 i.e. No. two wheels thereby revolves and turns around with 300 pulses (300 steps of rotor 22c) because with 1 ° of a pulse (1 step of rotor 22c) rotation.Back gear 26 rotates 1/3 ° with a pulse (1 step of rotor 22c), and the cover wheel is a hour wheel 27 owing to rotate 1/12 ° with a pulse (1 step of rotor 22c), thereby revolves and turn around with 4320 pulses (4320 steps of rotor 22c).
As shown in Figure 2; Test section 13 has light-emitting component 31 that is made up of LED (light emitting diode) on upper body of being separately positioned on 6 and the circuit board 10 and the photo detector 32 that is made up of phototransistor; And constitute through being that detection position P is (in the occasion of this embodiment one of the light hole portion 30 of the 21a of light hole portion of second hand wheel 20,21b, 21c, the second light hole portion 28 of minute wheel 25 and hour wheel 27, the whole and light-emitting component 31 and the optical channel between the photo detector 32 of the light hole portion 30 of breast wheel 23; Be arranged on 0: 00: 00 position as detection position P) consistent or a part of when overlapping; Photo detector 32 receives the light that passes through these transmittance sections of self-emission device 31, and detects each position of rotation of second hand wheel 20, minute wheel 25, hour wheel 27.As detection position P, can be arranged on 11: 55 other positions that grade.
As shown in Figure 7, the first light hole portion 21 of second hand wheel 20 possesses: the first circular port 21a that is arranged on the reference position (00 second position) of second hand wheel 20; The pointer rotation direction side of the second hand 2 of this first circular port 21a and with the both sides of its reverse direction side across first, second light shielding part 21d of different interval, second, third slotted hole 21b, the 21c that 21e is provided with; And be arranged on respect to the first circular port 21a and be positioned at second, third slotted hole 21b on the diameter of second hand wheel 20, the 3rd light shielding part 21f between 21c.
Like Fig. 7 and shown in Figure 23, because the diameter of second hand wheel 20 is about 3～4mm, thereby the first circular port 21a forms about 0.4～0.5mm the size of (with respect to about 12 ° width of the circumference of second hand wheel 20).In addition; As shown in Figure 7; The second slotted hole 21b in second, third each slotted hole 21b, 21c is benchmark (0 °) at the center with the first circular port 21a, from 48 ° of positions (8 seconds positions) roughly left-handed to greatly to 168 ° of positions the scope of (28 seconds positions) be arranged to corresponding circular-arc of rotation motion track with the first circular port 21a.As shown in Figure 7, be benchmark (0 °) at center with the first circular port 21a, from 192 ° of positions (32 seconds positions) roughly left-handed to greatly to 300 ° of positions the scope of (50 seconds positions) be arranged to corresponding circular-arc of rotation motion track with the first circular port 21a.
The first light shielding part 21d of the counter clockwise direction side that is arranged in second hand 2 among first, second each light shielding part 21d, the 21e (Fig. 7 is left-handed side); As shown in Figure 7; With the diameter (12 ° of width) with respect to the first circular port 21a be about three times the interval, promptly from left-handed to the scope of (8 seconds positions) to 48 ° of positions greatly as the reference position (0 ° of position) at the center of the first circular port 21a, be provided with the interval of the width about 36 ° in fact.
In addition, the second light shielding part 21e that is arranged in a side opposite with the pointer rotation direction of second hand 2 (Fig. 7 for dextrorotation side) is to be equivalent to one first interval about circular port 21a and to be provided with than the interval of the first light shielding part 21d is also long.This diameter that is spaced apart with respect to the first circular port 21a is the interval about four times; From as reference position (the 0 ° of position) dextrorotation at the center of the first circular port 21a to the scope of (50 seconds positions) to 60 ° of positions greatly, be provided with the interval of the width about 48 ° in fact.In addition, as shown in Figure 7, the 3rd light shielding part 21f is positioned on the diameter of second hand wheel 20 with respect to the first circular port 21a, and is arranged between second, third slotted hole 21b, the 21c.The width of the 3rd light shielding part 21f forms with the diametric(al) width of the first circular port 21a roughly the same.In the record of this instructions; Occasion in the sense of rotation of clearly not showing out second hand wheel 20, minute wheel 25, hour wheel 27; Such shown in arrow among Fig. 5, Figure 10～Figure 15; Be decided to be around axle center separately and be rotated in a clockwise direction, in addition, this moment, the sense of rotation of breast wheel 23 was decided to be around the axle center along rotation counterclockwise.
The 3rd slotted hole 21c's on the first light shielding part 21d and the diameter that is positioned at second hand wheel 20 is a part of corresponding.The second slotted hole 21b's on the second light shielding part 21e and the diameter that is positioned at second hand wheel 20 is a part of corresponding.The first circular port 21a's on the 3rd light shielding part 21f and the diameter that is positioned at second hand wheel 20 is a part of corresponding.Thus; Second hand wheel 20 constitutes; Under any of first～the 3rd light shielding part 21d～21f state corresponding with the detection position P of test section 13 (light-emitting component 31 photo detectors 32); If Rotate 180 ° (rotation is half the), then any of the first circular port 21a, second, third slotted hole 21b, 21c must be corresponding with the detection position P of test section 13.
In these 20 each 2 steps (rotation angle is 12 °) of rotation of second hand wheel, during 60 steps (rotation angle is 360 °, and rotational time is 60 seconds) of rotation, when test section 13 detected with per two seconds, become the check pattern of passing through test section 13 as shown in Figure 8.
Promptly, be in 0 second position when (0 ° of position) at second hand wheel 20; Test section 13 detects the first circular port 21a; Be in 2 seconds the position (12 ° of positions) to 6 seconds positions when (36 ° of positions); Test section 13 stops by the first light shielding part 21d, can not carry out the not detected state three times in succession that the light through test section 13 detects.
Be in 8 seconds positions (48 ° of positions) to 28 seconds positions when (168 ° of positions), the test section 13 continuous detecting second slotted hole 21b from second hand wheel 20.Be in 30 seconds positions when (180 ° of positions), test section 13 stops by the 3rd light shielding part 21f, becomes to carry out the not detected state that the light through test section 13 detects.Be in from 32 seconds the position (192 ° of positions) to 50 seconds positions when (300 ° of positions), test section 13 continuous detecting the 3rd slotted hole 21c.Be in from 52 seconds the position (312 ° of positions) to 58 seconds positions when (348 ° of positions), test section 13 stops by the second light shielding part 21e, can not carry out the not detected state four times in succession that the light through test section 13 detects.
Shown in solid line among Fig. 5, the second light hole portion 28 of minute wheel 25 is arranged on the reference position of minute wheel 25, and (00 fen position: light 0 ° of position) detects hole (below be called circular port).The circular port of this second light hole portion 28 also is the roughly the same size of the first circular port 21a with second hand wheel 20, and is arranged on the position corresponding with the first circular port 21a of second hand wheel 20.
Like Fig. 5 and shown in Figure 9, the 3rd light hole portion 29 of hour wheel 27 is that (00 position: a light that 0 ° of position) is provided with 30 ° angle intervals along circumference detects hole (below be called circular port) for reference position from hour wheel 27.11 positions (being 1 position in Fig. 9) between the circular port of this reference position and the 11st circular port are provided with the 4th light shielding part 29a.
As shown in Figure 9; With regard to the 3rd light hole portion 29 of hour wheel 27; When 0 position is made as reference position (0 ° of position); Each position of 0 °, 30 °, 60 °, 90 °, 120 °, 150 °, 180 °, 210 °, 240 °, 270 °, 300 °, promptly be that 0 point, 1 point, 2 points, 3 points, 4 points, 5 points, 6 points, 7 points, 8 points, 9 points, each position of 10 are respectively equipped with circular port along the pointer rotation direction of hour hands 4 (in Fig. 9, revolving) for contrary, (being 1 position in Fig. 9) is provided with the 4th light shielding part 29a 11 positions of 330 °.As each circular port of the 3rd light hole portion 29 of this hour wheel 27 also to form with the roughly the same size of the first circular port 21a of second hand wheel 20.
In addition; As shown in Figure 5; The 4th light hole portion 30 of breast wheel 23 is and a circular port that circular port is corresponding as the second light hole portion 28 of minute wheel 25, to form with the first circular port 21a of second hand wheel 20 and as the roughly the same size of circular port of the second light hole portion 28 of minute wheel 25.The 4th light hole portion 30 be arranged on breast wheel 23 predefined position, be that the detection position P of the second light hole portion 28 and test section 13 of minute wheel 25 is to the position of the second light hole portion 28 of seasonable and minute wheel 25.
Occasion at this embodiment; Light detects that promptly 0 point, 1 point, 2 points, 3 points, 4 points, 5 points, 6 points, 7 points, 8 points, 9 points, 10 points, carry out at each integral points of hour hands 4 at 11; And the breast wheel 23 of second drive system 12, minute wheel 25, hour wheel 27 its rotation angle are 30 °, 1 °, 1/12 ° with 1 step (half rotation of rotor 22c); Thereby that kind as shown in Figure 5 constitutes; At the integral point except the hour hands 4 of 11 position, P overlaps in the detection position of test section 13 for second～the 4th light hole portion 28～30 whole.
In addition, the rotation angle of the second hand wheel 20 of first drive system 11 is 6 ° with 1 step (half rotation of rotor 17c).This second hand wheel 20 is owing to per 60 steps (60 seconds) of the first circular port 21a of the first light hole portion 21 are corresponding with the detection position P of test section 13; Thereby that kind as shown in Figure 5 constitutes; At each integral point (except 11 o'clock) of hour hands 4, the first circular port 21a of the first light hole portion 21 overlaps with second～the 4th light hole portion 28～30.
Here, the position Detection of the pointer of the second hand 2 through test section 13, minute hand 3, hour hands 4 running is carried out as follows.Promptly, at second hand 2, minute hand 3, hour hands 4 in the position of 12 sides (in Fig. 5, being the position of upper side) when overlapping each other, P overlaps in the detection position in the 4th light hole portion 30 of first～the 3rd each light hole portion 21,28,29 and breast wheel 23.At this moment, come each light hole portion 21,28～30 of light transmission first～4th of self-emission device 31 and receive by photo detector 32.
To this and since first～the 4th each light hole portion 21,28～30 any with detection position P not at once, interdict the light of self-emission device 31, thereby photo detector 32 can not receive light, thereby test section 13 is in not detected state.
In addition, first, second each step motor 17,22 turned round for 1 step through make towards reversing 180 ° second hand 2, minute hand 3 and the hour hands 4 that make each rotor 17c, 22c separately.Therefore, through going on foot first, second each step motor 17,22 is alternately applied the polarity different pulse, and become the action that makes each rotor 17c, 22c rotation per 1.Therefore, even in per 1 step first, second each step motor 17,22 is continuously applied pulse of the same race, each rotor 17c, 22c can not rotate yet, and are in the state that stops then and there.
With regard to second hand wheel 20; From the size of the first circular port 21a of the first light hole portion 21 and the relation of the amount of movement in 1 step, if do not rotate for 2 steps, then the first circular port 21a not exclusively leaves the detection position P of test section 13; Therefore, carry out at every turn detection by 2 steps (2 seconds).
To this, the breast wheel 23 of second drive system 12, minute wheel 25, hour wheel 27 carry out each detection by 1 step.
Below, be used to detect the basic second hand position probing action of the reference position (00 second position) of second hand wheel 20 with reference to Figure 10 A～Figure 10 M explanation.
In this basic second hand position probing action, ignore minute wheel 25, hour wheel 27, the breast wheel 23 of second drive system 12.In addition, Figure 10 A～Figure 10 M representes the each rotation of second hand wheel 20 during 2 steps (rotation angle is 12 °), the corresponding relation of its position of rotation and detection position P test section 13.
The detection of the reference position of this second hand wheel 20 is accomplished through the reference position (00 second position) of detecting second hand wheel 20 shown in Figure 10 A.
Promptly, the first circular port 21a of the first light hole portion 21 of detection second hand wheel 20 and the detection position P consistent location of test section 13.The state of the reference position of this second hand wheel 20 is states of Figure 10 A, is that the detection position P of the first circular port 21a and test section 13 of the first light hole portion 21 of second hand wheel 20 is consistent, and can carry out the state that the light through test section 13 detects.
At first; At the state of Figure 10 A, rotation angle becomes 12 ° if second hand wheel 20 rotations 2 go on foot, then shown in Figure 10 B; The first circular port 21a dextrorotation departs from detection position P; Thereby the part of the first light shielding part 21d is corresponding with detection position P, thereby the light that can not carry out through test section 13 detects, thereby is in the not detected state shown in 2 seconds positions of Fig. 8.Likewise, shown in Figure 10 C～Figure 10 D; Thereby become till 36 ° by 2 steps rotation rotation angle up to second hand wheel 20 at every turn; The part of the first light shielding part 21d is corresponding with detection position P; Thereby can not carry out detecting through the light of test section 13, thereby shown in 3 seconds～6 seconds positions of Fig. 8, detected state is three times in succession.
After this; Shown in Figure 10 E, rotation angle becomes 48 ° if second hand wheel 20 rotations 2 go on foot, and then the second slotted hole 21b of the first light hole portion 21 of second hand wheel 20 is corresponding with the detection position P of test section 13; Thereby shown in 8 seconds positions of Fig. 8, can carry out detecting through the light of test section 13.Likewise, shown in Figure 10 F; Thereby become till 168 ° by 2 steps rotation rotation angle up to second hand wheel 20 at every turn; The part of the second slotted hole 21b is corresponding with the detection position P of test section 13, thereby shown in 10 seconds～28 seconds positions of Fig. 8, can carry out continuously detecting through the light of test section 13.
Under this state; Shown in Figure 10 G, rotation angle becomes 180 ° if second hand wheel 20 was further rotated for 2 steps, and then the second slotted hole 21b dextrorotation departs from detection position P; Thereby the 3rd light shielding part 21f is corresponding with detection position P; Thereby can not carry out detecting, thereby shown in 30 seconds positions of Fig. 8, be in not detected state through the light of test section 13.After this; Shown in Figure 10 H; Rotation angle becomes 192 ° if second hand wheel 20 rotations 2 go on foot; Then the part of the 3rd slotted hole 21c of the first light hole portion 21 of second hand wheel 20 is corresponding with the detection position P of test section 13, thereby shown in 32 seconds positions of Fig. 8, is in the state that can carry out through the light detection of test section 13.
After this; Shown in Figure 10 I, thereby become till 300 ° by 2 steps rotation rotation angle up to second hand wheel 20, the part of the 3rd slotted hole 21c is corresponding with the detection position P of test section 13 at every turn; Thereby shown in 34 seconds～50 seconds positions of Fig. 8, can carry out continuously detecting through the light of test section 13.Shown in Figure 10 J, if the 3rd slotted hole 21c dextrorotation departs from detection position P, and the part of the second light shielding part 21e is corresponding with detection position P, then can not carry out detecting through the light of test section 13, thereby shown in 52 seconds positions of Fig. 8, be in not detected state.
Likewise, shown in Figure 10 K～Figure 10 M; Thereby become till 348 ° by 2 steps rotation rotation angle up to second hand wheel 20 at every turn; The part of the second light shielding part 21e is corresponding with detection position P; Thereby can not carry out detecting through the light of test section 13, thereby shown in 54 seconds～58 seconds positions of Fig. 8, detected state is four times in succession.Under this state, shown in Figure 10 A, rotation angle becomes 360 ° if second hand wheel 20 rotations 2 go on foot, and then the first circular port 21a is corresponding with the detection position P of test section 13, shown in 0 second position of Fig. 8, is in the state that can carry out through the light detection of test section 13.
Like this, the state of Figure 10 A is for carrying out the state through the light detection of test section 13, and the state of Figure 10 B～Figure 10 D is for can not carry out the state through the light detection of test section 13 for three times in succession.The state of Figure 10 E～Figure 10 F is for can carry out the state through the light detection of test section 13 continuously, and the state of Figure 10 G is not for carrying out the state through the light detection of test section 13.The state of Figure 10 H～Figure 10 I is for can carry out the state through the light detection of test section 13 continuously, and the state of Figure 10 J～Figure 10 M is for can not carry out the state through the light detection of test section 13 for four times in succession.
Here; The not detected state that can not carry out the light detection continuously is the state of Figure 10 B～Figure 10 D and the state of Figure 10 J～Figure 10 M; If be conceived to this two states, can know and carry out the occasion that detects, the former not detected state three times in succession by 2 steps separately at every turn; The latter's not detected state four times in succession, continuous not detection number of times different at the former with the latter.Not detected state through can not carry out the light detection continuously to this is counted, but the reference position of specific second pinwheel 20.
Second hand wheel 20 detects by 2 steps (2 seconds) at every turn.In each light by 2 steps (2 seconds) of this second hand wheel 20 detects, can carry out the occasion that light detects after four times in succession at detected state not next time, its position becomes reference position (00 second position).If, begin occasion that detected state is not counted from the state of Figure 10 A, because up to the state that is in Figure 10 D; Detected state is continuous three times, after this, is in the state of Figure 10 E; The light that can carry out through test section 13 detects, and therefore, can not satisfy not detected state four times condition in succession; Therefore, not the reference position.Here it is is used to detect the basic position probing action of the reference position of second hand wheel 20.
Below, minute hand position probing action when explanation is used to detect each reference position basic of minute wheel 25 and hour wheel 27 with reference to Figure 11 A～Figure 11 P.
In this basic hour hands position probing action, ignore the minute hand second hand wheel 20 of first drive system 11.In addition; Figure 11 A～Figure 11 M representes 25 each 1 steps (1 °) of rotation of minute wheel and makes breast wheel 23 revolve the state that turns around; Figure 11 M～Figure 11 N representes minute wheel 360 steps (360 °) of 25 rotations and makes hour wheel 27 rotate 30 ° state; Figure 11 N～Figure 11 O representes that hour wheel 27 has rotated be equivalent to 9 hours state of (accumulative total is equivalent to 10 hours) from the state of Figure 11 N, and Figure 11 O～Figure 11 P representes that hour wheel 27 has been further rotated be equivalent to 1 hour state of (accumulative total is equivalent to 11 hours).
This minute wheel 25 and hour wheel 27 both sides' reference position (00 second position) can the most easily be detected for state shown in Figure 11 A the time.Because the reference position of the second light hole portion 28 of minute wheel 25 is (00 second position); The reference position of one the 3rd light hole portion 29 in each the 3rd light hole portion 29 of 11 of hour wheel 27 is (0 second position); Therefore, the 4th light hole portion 30 of detecting these reference positions and breast wheel 23 all with the detection position P consistent location of test section 13.
At first, under the state of Figure 11 A, if make minute wheel 1 step (1 °) of 25 rotations, then shown in Figure 11 B, breast wheel 23 rotates 30 °, and detection position P leaves in the 4th light hole portion 30 of breast wheel 23, and breast wheel 23 stops the detection position P of test section 13.At this moment, 1 ° of minute wheel 25 dextrorotation rotation and make the second light hole portion 28 only depart from the detection position P of test section 13 slightly can be carried out the position that the light through test section 13 detects thereby be positioned at.
Under this state, if each 1 step of rotation of minute wheel 25 and accumulative total rotated for 6 steps (6 °), then shown in Figure 11 G, breast wheel 23 Rotate 180s °, the 4th light hole portion 30 departs from detection position P180 ° of test section 13, thus test section 13 continues to stop detection position P.At this moment, 6 ° of minute wheel 25 dextrorotation rotations and that the second light hole portion 28 is roughly departed from from the detection position P that departs from test section 13 is half the can be carried out the position (with reference to Figure 23) that the light through test section 13 detects and still be positioned at.
After this, if each 1 step of rotation of minute wheel 25 and rotating for 12 steps (12 °), then shown in Figure 11 M, 360 ° of breast wheel 23 rotations, the 4th light hole portion 30 is corresponding with detection position P.At this moment, the second light hole portion 28 of minute wheel 25 roughly leaves detection position P fully, and the second light hole portion 28 is in the state that does not overlap with detection position P, and minute wheel 25 stops detection position P, thereby is in the state that can not carry out through the light detection of test section 13.In addition, at this moment, hour wheel 27 only rotates 1 °, thereby the 3rd light hole portion 29 of hour wheel 27 is that the circular port of reference position only departs from detection position P slightly, can carry out the state that the light through test section 13 detects thereby be in.
If minute wheel 25 is from 360 steps (revolve and turn around) of state rotation of the A of Figure 11, then shown in Figure 11 N, second light hole portion 28 of minute wheel 25 and the 4th light hole portion 30 of breast wheel 23 are in the state corresponding with detection position P.At this moment; Hour wheel 27 rotates 30 ° from the state of the A of Figure 11; The 3rd light hole portion 29 is that the circular port of reference position leaves detection position P; Second circular port in left side that the 3rd light hole portion 29 promptly is positioned at the reference position is corresponding with detection position P, can carry out the state that the light through test section 13 detects thereby be in.Under this state; If minute wheel 25 rotations are equivalent to 9 hours (accumulative total is equivalent to 10 hours); Then shown in Figure 11 O, second light hole portion 28 of minute wheel 25 and the 4th light hole portion 30 of breast wheel 23 are corresponding with detection position P, 300 ° of hour wheel 27 rotations; The 3rd light hole portion 29 promptly is that the 11 circular port is corresponding with detection position P from the reference position, thereby is in the state that can carry out through the light detection of test section 13.
After this; If being further rotated, minute wheel 25 is equivalent to 1 hour (accumulative total is equivalent to 11 hours); Then shown in Figure 11 P, second light hole portion 28 of minute wheel 25 and the 4th light hole portion 30 of breast wheel 23 are corresponding with detection position P, 330 ° of hour wheel 27 rotations; The 3rd light hole portion 29 promptly is that the 11 circular port leaves detection position P from the reference position, and the 4th light shielding part 29a of hour wheel 27 is corresponding with detection position P.Therefore, be in the state that can not carry out through the light detection of test section 13.This state can specificly be " 11: 00 position ".
If being further rotated, minute wheel 25 is equivalent to 1 hour (accumulative total is equivalent to 12 hours); Then shown in Figure 11 A; Second light hole portion 28 of minute wheel 25 and the 4th light hole portion 30 of breast wheel 23 are corresponding with detection position P; And 360 ° of hour wheel 27 rotations; The 4th 29a of light hole portion of hour wheel 27 leaves detection position P, and the 3rd light hole portion 29 that is positioned at reference position (0 position) in each the 3rd light hole portion 29 is corresponding with detection position P, thereby hour wheel 27 returns the state (0: 00 position) of Figure 11 A.
Like this, because 1 ° of the rotation amount in 1 step of minute wheel 25 is very little, therefore; Detection position P just can not leave fully with the rotation amount in 1 step of minute wheel 25 in the second light hole portion 28, thereby can not detect the reference position of minute wheel 25 exactly, but because breast wheel 23 rotates 30 ° with 1 step; Therefore, even the rotation amount in 1 step of minute wheel 25 is less, also because the rotation amount of breast wheel 23 is bigger; Therefore, this breast wheel 23 capable of using stops detection position P.
In addition, shown in Figure 11 M, turn around if breast wheel 23 revolved with 12 steps, then minute wheel 25 rotations are 12 °, thereby the circular port of the second light hole portion 28 of minute wheel 25 leaves detection position P fully, and therefore, minute wheel 25 stops detection position P.At this moment, even the 4th light hole portion 30 of breast wheel 23 is consistent with detection position P, also be in the state that can not carry out through the light detection of test section 13.
In addition; Thereby minute wheel 25 revolves its reference position of turning around when returning detection position P in each 360 steps of rotation; Any (but except the 4th light shielding part 29a of 11 positions) of the 3rd light hole portion 29 of the second light hole portion 28 of minute wheel 25, the 4th light hole portion 30 of breast wheel 23 and hour wheel 27 is all corresponding with detection position P, can carry out state that light through test section 13 detect thereby irrespectively be in the position of rotation of hour wheel 27 (positions except) at 11.
Have again; (0 ° of position) goes on foot (revolve and turn around) as if make minute wheel 25 rotate 360 at every turn, then because hour wheel 27 rotates 30 ° at every turn afterwards in the reference position of having detected minute wheel 25; Therefore; Even do not detect, and, just can detect the position of rotation of hour wheel 27 as long as the light of only when minute wheel 25 being revolved make a circle, carrying out through test section 13 detects at the worked light of test section 13 of per 1 stepping of minute wheel 25.At this moment; When the light detection of test section 13 is passed through in test make minute wheel 25 rotate for 360 steps from state shown in Figure 11 O at every turn; Shown in Figure 11 P; When the 4th light shielding part 29a of hour wheel 27 is consistent with detection position P, to detect though can not carry out light, the position of hour wheel 27 that can specific this moment is in " 11: 00 position ".
If make minute wheel 25 be further rotated 360 ° from " 11: 00 position " that the light that can not carry out through this test section 13 detects; Then since the 3rd light hole portion 29 of hour wheel 27 to be the circular port of reference position (0 position) corresponding with detection position P, thereby can carry out light detection through this test section 13.Promptly, the reference position of hour wheel 27 in the detection position set (0: 00 position) of P.Thus; Test detects through the light of test section 13 during the each rotation of state that detects from the light that can carry out through this test section 13 through minute wheel 25 360 ° (revolve and turn around); If minute wheel 25 rotations are found can carry out the position of rotation (state of Figure 11 A) of the hour wheel 27 that the light through this test section 13 detects for 360 °, then this position can specificly be the reference position of hour wheel 27, i.e. " 0: 00 position ".
Below, the basic three pin position probing action of the position of three pins that detect second hand 2, minute hand 3, hour hands 4 is described with reference to Figure 12 A～Figure 12 F.
The action of this three pins position probing comprises: depart from the second hand position probing action that the occasion of detection position P is carried out in the first light hole portion 21 of second hand wheel 20; Minute hand position probing action when arbitrary side of the 3rd light hole portion 29 of the second light hole portion 28 of minute wheel 25 and hour wheel 27 departs from the occasion of detection position P and carries out; And the second hand position probing action that all departed from combination that the occasion of detection position P carries out of the 3rd light hole portion 29 of the second light hole portion 28 of the first light hole portion 21 of second hand wheel 20, minute wheel 25, hour wheel 27 and the time minute hand position probing action three kinds of actions of action.
At first, have only the first light hole portion 21 of second hand wheel 20 to depart from the three pin position probing action of the occasion of detection position P with reference to Figure 12 A～Figure 12 F explanation.
At this moment, do not know the state of second hand wheel 20 fully, the reference position of supposing minute wheel 25, hour wheel 27 is in the detection position (0: 00 position).So at first test is used to detect the basic second hand position probing action of the reference position of second hand wheel 20.Promptly, the action of this basic second hand position probing is such as previously mentioned, makes 20 each 2 steps of rotation of second hand wheel, carry out detecting for each 2 steps rotation through the light of test section 13.
At this moment, when having tested the light detection of passing through test section 13, if the state of Figure 12 A then can not carry out detecting through the light of test section 13 making second hand wheel 2 steps of 20 rotations.Here, can not carry out the not detected state that the light through test section 13 detects does not count with " detecting number of times ".In this continuous occasion of detected state not, order adds and does not detect number of times, only limits to each 2 steps rotation of second hand wheel 20 is failed to carry out the occasion that light detects continuously, adds and does not detect number of times, and can carry out the occasion that light detects, and will not detect the number of times zero clearing.
Failing to carry out the occasion that light detects, making second hand wheel 20 be further rotated 2 and go on foot and test the light detection of passing through test section 13.At this moment, shown in Figure 12 B, if the light that can not carry out through test section 13 detects, then detected state is not continuous, thereby adds and do not detect number of times.Under this state, make second hand wheel 20 be further rotated for 2 steps and the light of test through test section 13 when detecting, shown in Figure 12 C, if can carry out detecting through the light of test section 13, then detected state is not discontinuous, thereby will not detect the number of times zero clearing.
Then, the light that test section 13 is passed through in each 2 pacings examination of second hand wheel 20 detects.At this moment, shown in Figure 12 D, transfer to and can not carry out the state that light detects, then do not count to detect number of times once more here if can carry out state that the light through test section 13 detects till once in the past.Test detects the light in each 2 steps of second hand wheel 20.At this moment, shown in Figure 12 E, can not carry out the not detected state four times in succession that the light through test section 13 detects.
Shown in Figure 12 F; In next 2 steps; If can carry out detecting through the light of test section 13, then the first circular port 21a of the first light hole portion 21 of second hand wheel 20 is consistent with the detection position P of test section 13, thereby can know that this position is exactly the reference position (00 second position) of second hand wheel 20.So far, detect the reference position of second hand wheel 20, i.e. " 00 second position ".
Below, depart from the three pin position probing action of the occasion of detection position P with reference to the 3rd light hole portion 29 of the second light hole portion 28 of Figure 13 A～Figure 13 F explanation minute wheel 25 and hour wheel 27.
At this moment, although the first light hole portion 21 of second hand wheel 20 is corresponding with the detection position P of test section 13,, therefore, can not carry out detecting through the light of test section 13 because the light hole portion of minute wheel 25 and hour wheel 27 departs from detection position P.Therefore, at first test is used for the reference position of second hand wheel 20 is moved to the basic second hand position probing that detection position P moves.
At this moment; Make second hand wheel 20 rotate for 2 steps at every turn, when the light detection of test section 13 is passed through in each 2 pacings examination, become the state of Figure 13 B from the state of Figure 13 A; Though the first light hole portion 21 of second hand wheel 20 is consistent with detection position P; But, therefore, can not carry out detecting through the light of test section 13 because second light hole portion 28 of minute wheel 25 and the 3rd light hole portion 29 of hour wheel 27 depart from detection position P.At this moment, second hand wheel 20 is when the state of Figure 13 A becomes the state of Figure 13 B, and detected state is four times in succession.
Here, according to i.e. " light that carries out each 2 steps of second hand wheel 20 detects, and detected state is not in succession after four times; can carry out the occasion that light detects, its position is the reference position " this condition of the condition of the basic position probing action of second hand wheel 20 next time, if under the state of Figure 13 B; Detected state is four times in succession, and can carry out light in next 2 steps and detect, then the reference position of second hand wheel 20 in the detection position P; Even if go on foot and make second hand wheel 20 rotate 2, because such shown in Figure 13 C, second light hole portion 28 of minute wheel 25 and the 3rd light hole portion 29 of hour wheel 27 depart from detection position P; Therefore, can not carry out detecting through the light of test section 13.
Therefore, in the occasion that the continuous light that can not carry out for five times through test section 13 of each 2 steps of second hand wheel 20 is detected, can know that any of the 3rd light hole portion 29 of the second light hole portion 28 and the hour wheel 27 of minute wheel 25 this moment departs from detection position P.In addition, under this state, do not know whether be the first light hole portion 21 state consistent with detection position P about second hand wheel 20.
Yet; This moment; Departed from detection position P owing to known any of the 3rd light hole portion 29 of the second light hole portion 28 and the hour wheel 27 of minute wheel 25, therefore, minute hand position probing action when test is used to detect reference position basic of minute wheel 25 and hour wheel 27.At this moment; The light that makes 25 each 1 steps of rotation of minute wheel and test through test section 13 detects; If minute wheel 25 and hour wheel 27 become the state of Figure 13 D from the state of Figure 13 C; Second light hole portion 28 of minute wheel 25 and the 4th light hole portion 30 of breast wheel 23 are corresponding with detection position P, and any circular port of the 3rd light hole portion 29 of hour wheel 27 is also corresponding with detection position P, thereby can carry out detecting through the light of test section 13.
Hence one can see that, the reference position of minute wheel 25 (00 fen position) P in the detection position.At this moment, second hand wheel 20 is unclear on which position with hour wheel 27.So, owing to be to carry out the state that the light through test section 13 detects, therefore, at first be used to detect the basic second hand position probing action of the reference position of second hand wheel 20, and the reference position of second hand wheel 20 moved to detection position P shown in Figure 13 E.Hence one can see that, and second hand wheel 20 and minute wheel 25 reference position separately are in " 00 minute 00 second position ".
After this; If make 360 ° of 25 every rotations of minute wheel (revolve and turn around); Then to each 360 °, the 3rd light hole portion 29 of hour wheel 27 is corresponding with detection position P, can carry out detecting through the light of test section 13; When being further rotated 360 °, the reference position of hour wheel 27 (0 position) is consistent with detection position P at the state (11 positions) that detects from the light that can not carry out through test section 13.Thus, whole reference position of second hand wheel 20, minute wheel 25, hour wheel 27 is in (0: 00: 00 position).This produced at noon in 0: 00: 00.
Below, with reference to whole three pin position probing actions that depart from the occasion of detection position P of the 3rd light hole portion 29 of the second light hole portion 28 of the first light hole portion 21 of Figure 14 A～Figure 14 F explanation second hand wheel 20, minute wheel 25, hour wheel 27.
At this moment, any position of rotation of second hand wheel 20, minute wheel 25, hour wheel 27 is all unclear.Therefore, at first test is used to detect the basic second hand position probing action of the reference position of second hand wheel 20.Promptly, the state at Figure 14 A detects second hand wheel 20 each light that rotated for 2 steps and test through test section 13.At this moment; Shown in Figure 14 B; Although the first light hole portion 21 of second hand wheel 20 is corresponding with detection position P,, then can not carry out detecting through the light of test section 13 if the 3rd light hole portion 29 of second light hole portion 28 of minute wheel 25 and hour wheel 27 is not corresponding with detection position P.
Therefore, further carry out the basic second hand position probing action of second hand wheel 20.Since should basic second hand position probing the condition of action do, carry out the light detection in each 2 steps of second hand wheel 20, detected state is not in succession after four times; Can carry out the occasion that light detects next time; Its position is exactly the reference position, therefore, if such shown in Figure 14 B; The not detected state of second hand wheel 20 four times in succession; And can carry out detecting in next 2 steps through the light of test section 13, then the reference position of second hand wheel 20 in the detection position P, even and if make second hand wheel 2 steps of 20 rotations; Also the such occasion that can not carry out through the light detection of test section 13 shown in Figure 14 C is judged as second light hole portion 28 of minute wheel 25 and the 3rd light hole portion 29 of hour wheel 27 and departs from detection position P.In addition, at this moment, whether the also unclear first light hole portion 21 is corresponding with detection position P about second hand wheel 20.
Under this state; The second light hole portion 28 that is judged as minute wheel 25 departs from detection position P; Then test is used to detect the basic second hand position probing action of the reference position of minute wheel 25 and hour wheel 27, makes 25 each 1 steps of rotation of minute wheel and the light of test through test section 13 when detecting, shown in Figure 14 C; Even if make the 360 ° of occasions that can not carry out through the light detection of test section 13 of minute wheel 25 each rotations; Shown in Figure 14 D, suspect that the first light hole portion 21 of second hand wheel 20 is not corresponding with detection position P, and make second hand wheel 30 steps (180 °) of 20 rotations.
Promptly, under the not corresponding state of the first light hole portion 21 of second hand wheel 20 with detection position P; If make second hand wheel 30 steps (180 °) of 20 rotations; Then the first light hole portion 21 must be corresponding with detection position P; Therefore, shown in Figure 14 E, the first light hole portion 21 of imaginary second hand wheel 20 is not corresponding with detection position P.Under this state, make minute wheel 25 each rotations 1 go on foot and test the light that passes through test section 13 and detect once more.At this moment, corresponding in the second light hole portion 28 of minute wheel 25 with detection position P, can carry out light through test section 13 when detecting, the reference position of minute wheel 25 (00 fen position) is shown in Figure 14 F.If carry out after the state from this Figure 14 D the action to Figure 14 F, Figure 14 E, then the whole reference position of second hand wheel 20, minute wheel 25, hour wheel 27 is consistent.
Whether basic accurately pin location confirmation is moved with reference to Figure 15 A～Figure 15 F three pins each integral point when pointer turns round usually of confirming second hand 2, minute hand 3, hour hands 4 to be described.
Pin location confirmation that should be basic action judges in CPU35 whether three pins of second hand 2, minute hand 3, hour hands 4 are accurate at each integral point, and in second hand 2 occasions, is judging except 11 points, integral point 23 whether second hand 2 is accurately confirmed.In this occasion, begin 10 seconds departing from interior affirmation second hand 2 from integral point.This is; If begin through 10 seconds from integral point; Then minute wheel 25 is through second step motor 1 step (1 °) of 22 rotations of second drive system 12, and breast wheel 23 rotations are 30 ° thereupon, and a hole portion 30 that is arranged on this breast wheel 23 is blocked by the light shielding part of minute wheel 25; And stop the detection position P of test section 13, thereby can not carry out light detect so.
The state of the integral point (for example 2 points) the when state of Figure 15 A is the running of common pointer, the detection position P of the whole and test section 13 of the 4th light hole portion 30 of the second light hole portion 28 of the first circular port 21a of the first light hole portion 21 of second hand wheel 20, minute wheel 25, the 3rd light hole portion 29 (for example the 3rd circular port) of hour wheel 27, breast wheel 23 is consistent.Under this state, carry out the common pointer running of 6 ° of second hand wheel 20 rotations in per 1 second.At this moment, because second hand wheel 20 is 6 ° of rotations in per 1 second, therefore, the first circular port 21a of second hand wheel 20 not exclusively leaves the detection position P of test section 13, is in the state that can carry out through the light detection of test section 13.
After this; If second hand wheel 20 was further rotated for 1 step and is positioned at 2 seconds positions that rotated for 2 steps (12 °); Then shown in Figure 15 B, the first circular port 21a of second hand wheel 20 leaves the detection position P of test section 13 fully, and the detection position P of test section 13 is stopped by the first light shielding part 21d.At this moment,, then be in the state that can not detect as if the light that can carry out till once through test section 13 in the past if the light of test through test section 13 detects, to this not detected state do not count with " detecting number of times ".
And in 20 each 1 steps of rotation of second hand wheel, per 2 pacings examination detects through the light of test section 13.At this moment, 6 seconds positions shown in figure, 4 seconds positions shown in the 15C and Figure 15 D, test section 13 is stopped by the first light shielding part 21d of second hand wheel 20 continuously.Thus, shown in Figure 15 B～Figure 15 D, can not carry out the not detected state three times in succession that the light through test section 13 detects.
Under this state, then second hand wheel 20 rotations 2 go on foot, shown in 8 seconds positions of Figure 15 E; The part of the second slotted hole 21b of second hand wheel 20 is corresponding with test section 13; Can carry out light through test section 13 when detecting, the reference position of the second hand wheel 20 i.e. first circular port 21a is positioned at 8 seconds positions, therefore; Second hand wheel 20 rotates exactly, and second hand 2 is in pointer running position accurately.Promptly, second hand 2 carries out detecting through the light of test section 13 when each rotation 2 goes on foot from the integral point position at second hand wheel 20; Not detected state through test section 13 is in succession after three times; Can carry out light through test section 13 when detecting next time, be positioned at 8 seconds positions, pointer exactly turns round.
After this; Second hand wheel 20 was further rotated for 2 steps and becomes 10 seconds; Then shown in Figure 15 F, the part of the second slotted hole 21b of second hand wheel 20 is corresponding with test section 13, thereby can carry out detecting through the light of test section 13; But because minute wheel 1 step (1 °) of 25 rotations and breast wheel 1 step (30 °) of 23 rotations; Even if thereby the second light hole portion 28 of minute wheel 25 not exclusively leaves the detection position P of test section 13, the 4th light hole portion 30 of breast wheel 23 also leaves the detection position P of test section 13 fully, thereby breast wheel 23 stops test section 13.Therefore, usually the pointer contrast in the pointer running begins to carry out with interior in 10 seconds from every integral point.
Below, constitute with reference to the circuit of this pointer type wristwatch of block diagram illustrating of Figure 16.
This circuit formation possesses: the CPU (central arithmetic processing apparatus) 35 that control circuit is whole; Store the ROM (ROM (read-only memory)) 36 of preset program; Store the RAM37 (RAS) of deal with data; Generation is used to make the start-oscillation circuit 38 of the pulse of CPU35 action; To be the frequency dividing circuit 39 of suitable frequency (being used to make the suitable frequency of CPU35 action) from the pulses switch that this start-oscillation circuit 38 generates; The clock and watch motion means 8 of Shi Zhizhen (second hand 2, minute hand 3, hour hands 4) running; And have the light-emitting component 31 that sends light and a test section 13 that receives from the photo detector 32 of the light of this light-emitting component 31.
Have, this circuit formation also possesses except foregoing: the power supply unit 40 of the solar panel 9 of supply power and battery etc. again; The antenna 41 of acceptance criteria time wave; The etalon time electric wave that is received is carried out the detecting circuit 42 that detection is handled; Illuminate the Lighting Division 43 that shows constantly, the illumination driving circuit 44 that is used to drive this Lighting Division 43; Report the loudspeaker 45 of sound; And the buzz circuit 46 that is used to drive this loudspeaker 45.
The basic second hand position probing of reference position that is used for detecting the second hand 2 of this pointer type wristwatch with reference to Figure 17 explanation is handled.
This basic second hand position probing processing is to detect the reference position (00 second position) of second hand wheel 20; Shown in Figure 10 A, the position of rotation of the second hand wheel 20 when the first circular port 21a of the first light hole portion 21 of detection second hand wheel 20 is consistent with the detection position P of test section 13.In this occasion, second～the 3rd each light hole portion 28～30 of minute wheel 25, hour wheel 27, breast wheel 23 of supposing second drive system 12 is consistent with the detection position P of test section 13 and stop.
Handle if start this second hand position probing, then CPU35 carries out zero clearing to the detected number of times that do not detect of preceding single pass test section 13, and will not detect sign and be made as " 0 " (step S1).CPU35 drives through making motor 11,12; And make second hand wheel 20 rotations 2 go on foot (12 °) (step S2); And then the light-emitting component 31 luminous (step S3) that makes test section 13 afterwards; Detect photo detector 32 and whether received the light of this light-emitting component 31, thereby judged whether to detect (step S4) through the light of test section 13.
Any occasion corresponding at the first circular port 21a of the first light hole portion 21 of second hand wheel 20, second, third slotted hole 21b, 21c with the detection position P of test section 13; CPU35 receives the light of self-emission device 31 through photo detector 32; The light that has been judged as through test section 13 detects; And return step S1; Corresponding with the detection position P of test section 13 and till stopping detection position P, repeat above-mentioned action up to any of each light shielding part 21d～21f of first of second hand wheel 20～3rd.
If 20 each 2 steps of rotation of second hand wheel; And each of the first circular port 21a of the first light hole portion 21 of second hand wheel 20, second, third each slotted hole 21b, 21c all departs from the detection position P of test section 13; Any of each light shielding part 21d～21f of first of second hand wheel 20～3rd is corresponding with the detection position P of test section 13, and then with regard to CPU35, photo detector 32 can not receive the light of self-emission device 31; Be in the not detected state that can not carry out through the light detection of test section 13; To this not detected state do not count to detect number of times, and add " 1 " (step S5), and judge this not detected state whether in succession four times (step S6) not detecting sign.
Promptly, the reference position of second hand wheel 20 shown in Figure 10 J～Figure 10 M, at detected state not in succession after four times, shown in Figure 10 A, when having had light through test section 13 detect, can specific its position be exactly the reference position next time.Therefore; For example at the state of Figure 10 B state to Figure 10 D, the part of the first light shielding part 21d of second hand wheel 20 is corresponding with detection position P, therefore; Not detection number of times through test section 13 three times in succession; But if second hand wheel 20 rotations 2 next time go on foot, then the part of the second slotted hole 21b of second hand wheel 20 is corresponding with detection position P, thereby has the light through test section 13 to detect.Return step S2 this moment, repeats above-mentioned action.
Likewise, at the state of Figure 10 G because the 3rd light shielding part 21f of second hand wheel 20 is corresponding with the detection position P of test section 13, thereby can not carry out light detection through test section 13; And if second hand wheel 20 then rotated for 2 steps; Then the part of the 3rd slotted hole 21c of second hand wheel 20 is corresponding with detection position P, can carry out detecting through the light of test section 13, therefore; Also return step S2 this moment, repeats above-mentioned action.
When the state of Figure 10 J rotated to the state of Figure 10 M, the part of the second light shielding part 21e of second hand wheel 20 was corresponding with detection position P order at second hand wheel 20, therefore, and the not detection number of times through test section 13 four times in succession.
CPU35 makes second hand wheel 2 steps (step S7) of 20 rotations, and makes the light-emitting component 31 luminous (step S8) of test section 13, detects photo detector 32 and whether has received the light of this light-emitting component 31, thereby judged whether to detect (step S9) through the light of test section 13.At this step S9; When having had the light that passes through test section 13 to detect; CPU35 is according to the consistent reference position (00 second position) that detects second hand wheel 20 that is judged as with detection position P of the first circular port 21a of the first light hole portion 21 of second hand wheel 20; Go forward side by side hand-manipulating of needle aligning and second hand 2, minute hand 3, hour hands 4 are turned back to current time (step S10), and transfer to common pointer running and this processing of end.
In this occasion; In step S9; Second～the 3rd each light hole portion 28～30 of supposing minute wheel 25, hour wheel 27, breast wheel 23 is consistent with the detection position P of test section 13 and stop, and therefore, must have the light through test section 13 to detect; And if in the not corresponding occasion of second～the 3rd each light hole portion 28～30 of minute wheel 25, hour wheel 27, breast wheel 23 with the detection position P of test section 13; The light through test section 13 does not detect, and therefore, the branch position probing of stating after transferring to is handled.
Below, the minute hand position probing is handled when being used for detecting reference position basic of minute hand 3, hour hands 4 of this pointer type wristwatch with reference to Figure 18 explanation.
This minute hand position probing is handled shown in Figure 11 A, and the 3rd light hole portion 29 of detecting the second light hole portion 28 and the hour wheel 27 of minute wheel 25 is minute wheel 25 and the reference position (00 fen position) of hour wheel 27 of the detection position P of whole and test section 13 of the 4th light hole portion 30 of circular port and breast wheel 23 of reference position (0 o'clock position) when consistent.In this occasion, the first light hole portion 21 of second hand wheel 20 of supposing first drive system 11 is consistent with the detection position P of test section 13 and stop.
If starting this second hand position probing handles; Then make minute wheel 1 step (1 °) (step S15) of 25 rotations; And make the light-emitting component 31 luminous (step S16) of test section 13; Whether received the light of this light-emitting component 31 through detecting photo detector 32, thereby judged whether to detect (step S17) through the light of test section 13.If the light through test section 13 does not detect, then till minute wheel 25 rotations 360 ° (being equivalent to revolve 1 hour that turns around), repeat the action of step S15 to step S17.In this occasion; Since supposed that the first light hole portion 21 of second hand wheel 20 is consistent with the detection position P of test section 13, therefore, if minute wheel 25 revolves three-sixth turn then shown in Figure 11 N; Except " 11 positions " of hour wheel 27, must there be light to detect through test section 13.
Specific thus is to have had the reference position (00 fen position) of minute wheel 25 in the light detection of test section 13 consistent with detection position P among the step S17.And; Further make 360 ° of minute wheel 25 rotations; And make hour wheel 27 rotate 30 ° (step S18); Make the light-emitting component 31 luminous (step S19) of test section 13, whether received the light of this light-emitting component 31 through detection photo detector 32, thereby thereby judged whether the 3rd light hole portion 29 of hour wheel 27 and the corresponding light detection (step S20) that has had through test section 13 of detection position P of test section 13.
At this moment; Because individual circular port of the 3rd light hole portion 29 of hour wheel 27 is provided with 11 with 30 ° interval, is provided with the 4th light shielding part 29a in " 11 positions ", thereby if minute wheel 25 360 ° of rotations and make hour wheel 27 rotate 30 °; Then shown in Figure 11 N～Figure 11 O; Except the 4th light shielding part 29a of " 11 positions ", the individual circular port of the 3rd light hole portion 29 is corresponding with detection position P order, thereby has the light through test section 13 to detect.At this step S20; When having had the light that passes through test section 13 to detect; Return step S18; And at each circular port of the 3rd light hole portion 29 of hour wheel 27 with after P order in detection position is corresponding, corresponding with detection position P and till can not carrying out light detection, repeat above-mentioned action up to the 4th light shielding part 29a of hour wheel 27 through test section 13.
Shown in Figure 11 P; If because of can not carry out corresponding with detection position P of the 4th light shielding part 29a of hour wheel 27 detects through the light of test section 13; Then be judged as hour wheel 27 in " 11 positions "; And make minute wheel 25 be further rotated 360 ° and make 30 ° (step S21) of hour wheel 27 rotation; Make the light-emitting component 31 luminous (step S22) of test section 13, whether received the light of this light-emitting component 31, thereby judged whether to detect (step S23) through the light of test section 13 through detecting photo detector 32.
In this step S23; Shown in Figure 11 A, the 3rd light hole portion 29 of " 0 position " of hour wheel 27 must be corresponding with the detection position P of test section 13, has the light through test section 13 to detect; Therefore, " 0 position " of confirming hour wheel 27 and this treatment scheme of end after detection position P is consistent.In addition; In step S23, owing to supposed that the first light hole portion 21 of second hand wheel 20 is corresponding with the detection position P of test section 13, therefore; Must there be light to detect through test section 13; And were it not for wide detection, the first light hole portion 21 that then is judged as second hand wheel 20 is not corresponding with detection position P, handles and return above-mentioned second hand position probing.
Below, explain that with reference to Figure 19～Figure 21 the three basic pin position probing of three pin reference positions of the second hand 2 that detects in this pointer type wristwatch, minute hand 3, hour hands 4 are handled.
It is the whole unclear occasion in position of three pins of second hand 2, minute hand 3, hour hands 4 that this three pins position probing is handled, made up above-mentioned second hand position probing handle with the time minute hand position probing processing processing.In this occasion, Figure 19 representes second hand position probing processed steps S30～step S38, and Figure 20 representes minute hand position probing processed steps S41～step S66, and Figure 21 representes hour hands position probing processed steps S70～step S77.
Handle if start this three pins position probing, then therefore CPU35, at first carries out the second hand position probing of Figure 19 and handles owing to do not know the whole position of three pins of second hand 2, minute hand 3, hour hands 4.Promptly, to preceding once till not detection number of times through the detected not detected state of test section 13 carry out zero clearing; And will not detect zone bit and be made as " 0 " (step S30); And make second hand wheel 20 rotations 2 go on foot (step S31); Make the light-emitting component 31 luminous (step S32) of test section 13, whether received the light of this light-emitting component 31, thereby judged whether to detect (step S33) through the light of test section 13 through detecting photo detector 32.
At this moment; Though do not know whole position of rotation of second hand wheel 20, minute wheel 25, hour wheel 27; But received the light that comes self-emission device 31 at photo detector 32, and when having had light through test section 13 to detect, returned step S30; Corresponding with the detection position P of test section 13 and till stopping detection position P, repeat above-mentioned action up to any of each light shielding part 21d～21f of first of second hand wheel 20～3rd.
Promptly, when in step S33, having had light through test section 13 to detect, the whole detection position P with test section 13 once in a while of the 3rd light hole portion 29 of the second light hole portion 28 of the first light hole portion 21 of second hand wheel 20, minute wheel 25, hour wheel 27, the 4th light hole portion 30 of breast wheel 23 are corresponding.At this moment, the reference position of minute wheel 25 (00 fen position) is consistent with detection position P, but since unclear on the position of the hour wheel 27 of second hand wheel 20, therefore, at first detect the position of second hand wheel 20.Therefore, repeat the action of step S30～step S33, so that the second light shielding part 21e of second hand wheel 20 is corresponding with the detection position P of test section 13.
And, and, the not detection number of times through test section 13 is counted, and added " 1 " (step S34), and judge that whether in succession this do not detect number of times four times (step S35) not detecting sign.In succession till four times, repeat the action of step S31～step S35 up to the not detection number of times through test section 13 at this step S35.Not detection number of times through test section 13 is in succession four times the time; Make second hand wheel 2 steps (step S36) of 20 rotations; Make the light-emitting component 31 luminous (step S37) of test section 13; Whether received the light of this light-emitting component 31 through detecting photo detector 32, thereby judged whether to detect (step S38) through the light of test section 13.
At this moment; In step S38 if there has been light to detect through test section 13; Then the reference position of minute wheel 25 (00 fen position) is consistent with detection position P; Under any circular port of the 3rd light hole portion 29 of the second light hole portion 28 of minute wheel 25 and hour wheel 27 state consistent with detection position P, the first circular port 21a of the first light hole portion 21 that is judged as second hand wheel 20 is consistent with the detection position P of test section 13.Thus, the reference position that is judged as second hand wheel 20 and minute wheel 25 is in (00 minute 00 second position), and the hour hands position probing of the step S70 that states after transferring to is handled.
Yet in step S33; When being judged as the light detection of not passing through test section 13; Though do not know whole position of rotation of second hand wheel 20, minute wheel 25, hour wheel 27; But the not detection number of times to through test section 13 is counted, and adds " 1 " (step S34) to not detecting sign, and judges that whether in succession this do not detect number of times four times (step S35).In succession till four times, repeat the action of step S31～step S35 up to the not detection number of times through test section 13 at this step S35.
And; At the not detection number of times of step S35 through test section 13 in succession four times the time; Make second hand wheel 2 steps (step S36) of 20 rotations; Make the light-emitting component 31 luminous (step S37) of test section 13, whether received the light of this light-emitting component 31, thereby judged whether to detect (step S38) through the light of test section 13 through detecting photo detector 32.
At this moment; In the occasion that has had through the light detection of test section 13; The 21 first circular port 21a of the first light hole portion of second hand wheel 20 are consistent with the detection position P of test section 13; And any circular port of the second light hole portion 28 of minute wheel 25, the 3rd light hole portion 29 of hour wheel 27, the 4th light hole portion 30 of breast wheel 23 are also consistent with detection position P; Thereby ground identical with above-mentioned occasion, specific be the reference position of second hand wheel 20 and minute wheel 25 in (00 minute 00 second position), and the minute hand position probing of the step S70 that states after transferring to processing.
Yet in step S38; Occasion in the light detection of not passing through test section 13; Shown in Figure 14 B; Even if the first circular port 21a of the first light hole portion 21 of second hand wheel 20 is corresponding with detection position P, also because the not detected state through test section 13 five times in succession, therefore; Any of the 4th light hole portion 30 that is judged as the 3rd light hole portion 29, the breast wheel 23 of the second light hole portion 28, the hour wheel 27 of minute wheel 25 departs from detection position P, carries out the minute hand position probing and handles and get into step S41 shown in Figure 20.
This minute hand position probing is handled; Shown in figure 20; Make minute wheel one step (1 °) of 25 rotations at step S41; Make the light-emitting component 31 luminous (step S42) of test section 13, whether received the light of this light-emitting component 31, thereby judge whether to detect (step S43) through the light of test section 13 through detecting photo detector 32.At this moment,, then make 25 each 1 steps of rotation of minute wheel, and judge whether minute wheel 25 has rotated 360 ° (step S44) if the light through test section 13 detects, up to minute wheel 25 revolve turn around till, repeat above-mentioned action.
At this moment; Occasion through the light detection of test section 13 has been arranged in step S43; The detection position P of the whole and test section 13 of any circular port of the second light hole portion 28 of the first circular port 21a of the first light hole portion 21 of second hand wheel 20, minute wheel 25, the 3rd light hole portion 29 of hour wheel 27, the 4th light hole portion 30 of breast wheel 23 is consistent, and minute wheel 25 departs from hour wheel 27 before beginning step S41.Because current supposition has had the light through test section 13 to detect at step S43, therefore, specific is that the reference position (00 fen position) of minute wheel 25 is consistent with detection position P.Because do not know whether the reference position (00 second position) of second hand wheel 20 is consistent with detection position P this moment yet; Therefore; Such as stated, return step S30, carry out up to the second hand position probing of step S38 and handle; The reference position (00 second position) that makes second hand wheel 20 is for behind the P of detection position, and the hour hands position probing of the step S70 that states after transferring to is handled.
Even if yet minute wheel 25 is rotated 360 ° of occasions of also passing through the light detection of test section 13 at step S43 at step S44; Shown in Figure 14 D; The first light hole portion 21 that is judged as second hand wheel 20 is not corresponding with detection position P; And make second hand wheel 20 rotations 30 go on foot (180 °) (step S45); Make the light-emitting component 31 luminous (step S46) of test section 13, whether received the light of this light-emitting component 31, thereby judge whether to detect (step S47) through the light of test section 13 through detecting photo detector 32.
At this moment; Occasion through the light detection of test section 13 has been arranged in step S47; The detection position P of the whole and test section 13 of any circular port of the second light hole portion 28 of the first light hole portion 21 of second hand wheel 20, minute wheel 25, the 3rd light hole portion 29 of hour wheel 27, the 4th light hole portion 30 of breast wheel 23 is consistent; Second hand wheel 20 before step S45 begins rotation, second hand wheel 20 departs from.Because current supposition has had the light through test section 13 to detect at step S47, therefore, specific is that the reference position (00 fen position) of minute wheel 25 is consistent with detection position P.Because whether the reference position (00 second position) of also not knowing second hand wheel 20 this moment P in the detection position; Therefore; Such as stated, return step S30, carry out up to the second hand position probing of step S38 and handle; The reference position (00 second position) that makes second hand wheel 20 is for behind the P of detection position, and the hour hands position probing of the step S70 that states after transferring to is handled.
Even if yet second hand wheel 20 rotations 30 are gone on foot (180 °) also pass through the light detection of test section 13 at step S47 occasion at step S45; Shown in Figure 14 E; Even if the first light hole portion 21 of second hand wheel 20 is corresponding with detection position P; The second light hole portion 28 that also is judged as minute wheel 25 departs from detection position P, and makes minute wheel 1 step (step S48) of 25 rotations.
And, make the light-emitting component 31 luminous (step S49) of test section 13, whether received the light of this light-emitting component 31 through detecting photo detector 32, thereby judged whether to detect (step S49) through the light of test section 13.At this moment,, then make 25 each 1 steps of rotation of minute wheel, and judge whether minute wheel 25 has rotated 360 ° (step S51) if the light through test section 13 detects, up to minute wheel 25 revolve turn around till, repeat action from step S48 to step S50.
At this moment; The occasion that in step S50, has had the light through test section 13 to detect, the detection position P of the whole and test section 13 of any circular port of the second light hole portion 28 of the first light hole portion 21 of second hand wheel 20, minute wheel 25, the 3rd light hole portion 29 of hour wheel 27, the 4th light hole portion 30 of breast wheel 23 is consistent.On the other hand, in step S50, carry out light and detect the stage before, minute wheel 25 departs from.Because current supposition has had the light through test section 13 to detect at step S50, therefore, specific is that the reference position (00 fen position) of minute wheel 25 is consistent with detection position P.Because whether the reference position (00 second position) of also not knowing second hand wheel 20 this moment P in the detection position; Therefore; Such as stated, return step S30, carry out up to the second hand position probing of step S38 and handle; The reference position (00 second position) that makes second hand wheel 20 is for behind the P of detection position, and the hour hands position probing of the step S70 that states after transferring to is handled.
Even if yet minute wheel 25 is rotated 360 ° of occasions of also passing through the light detection of test section 13 at step S50 at step S51; Shown in Figure 11 P; Even if the 4th light hole portion 30 of the second light hole portion 28 of the first light hole portion 21 of second hand wheel 20, minute wheel 25, breast wheel 23 is corresponding with detection position P; Any circular port of the 3rd light hole portion 29 of hour wheel 27 all departs from detection position P, thereby the 4th light shielding part 29a that is judged as hour wheel 27 is corresponding with detection position P.
This moment at first; Owing to do not know whether the first light hole portion 21 of second hand wheel 20 is corresponding with detection position P; Therefore, make second hand wheel 30 steps (180 °) (step S52) of 20 rotations, make the light-emitting component 31 luminous (step S53) of test section 13; Whether received the light of this light-emitting component 31 through detecting photo detector 32, thereby judged whether to detect (step S54) through the light of test section 13.
At this moment; In the occasion that has had through the light detection of test section 13; The detection position P of the whole and test section 13 of the circular port of any of the second light hole portion 28 of the first light hole portion 21 of second hand wheel 20, minute wheel 25, the 3rd light hole portion 29 of hour wheel 27, the 4th light hole portion 30 of breast wheel 23 is consistent, and the 4th light shielding part 29a of hour wheel 27 is corresponding with detection position P, in addition; In stage in step S52 before the rotation of beginning second hand wheel 20, second hand wheel 20 departs from.Because current supposition has had the light through test section 13 to detect, therefore, specific is that the reference position (00 fen position) of minute wheel 25 is consistent with detection position P.Because whether the reference position (00 second position) of also not knowing second hand wheel 20 this moment P in the detection position; Therefore; Such as stated, return step S30, carry out up to the second hand position probing of step S38 and handle; The reference position (00 second position) that makes second hand wheel 20 is for behind the P of detection position, and the hour hands position probing of the step S70 that states after transferring to is handled.
Yet; The occasion that detects of the light through test section 13 at step S54, shown in Figure 11 P, the 4th light shielding part 29a that CPU35 is judged as hour wheel 27 is corresponding with detection position P; Make minute wheel 1 step (step S55) of 25 rotations; Make the light-emitting component 31 luminous (step S56) of test section 13, whether received the light of this light-emitting component 31, thereby judge whether to detect (step S57) through the light of test section 13 through detecting photo detector 32.At this moment,, then make 25 each 1 steps of rotation of minute wheel, and judge whether minute wheel 25 has rotated 360 ° (step S58) if the light through test section 13 detects, up to minute wheel 25 revolve turn around till, repeat action from step S55 to step S57.
At step S57 the occasion through the light detection of test section 13 has been arranged; The detection position P of the whole and test section 13 of the circular port of any of the second light hole portion 28 of the first light hole portion 21 of second hand wheel 20, minute wheel 25, the 3rd light hole portion 29 of hour wheel 27, the 4th light hole portion 30 of breast wheel 23 is consistent; The 4th light shielding part 29a of hour wheel 27 is corresponding with detection position P; In addition, in the stage in step S55 before the rotation of beginning minute wheel 25, minute wheel 25 departs from.Because also supposing this moment at step S57 has had the light through test section 13 to detect, therefore, specific is that the reference position (00 fen position) of minute wheel 25 is consistent with detection position P.Because do not know whether the reference position (00 second position) of second hand wheel 20 is consistent with detection position P this moment yet; Therefore; Such as stated, return step S30, carry out up to the second hand position probing of step S38 and handle; Make second hand wheel 20 for behind the P of detection position, the minute hand location confirmation of the step S70 that states after transferring to is handled.
In addition, even if rotate 360 ° of occasions of also passing through the light detection of test section 13 at step S57 at step S58 minute wheel 25 at step S58, the 4th light shielding part 29a that is assumed to be hour wheel 27 is corresponding with detection position P, and hour wheel 27 is in " 11 positions ".Should imagination whether correct in order to confirm; Make 30 steps of second hand wheel 20 rotation (Rotate 180 °) (step S59); Make the light-emitting component 31 luminous (step S60) of test section 13; Whether received the light of this light-emitting component 31 through detecting photo detector 32, thereby judged whether to detect (step S61) through the light of test section 13.
At this moment; In the occasion that has had through the light detection of test section 13; The detection position P of the whole and test section 13 of the circular port of any of the second light hole portion 28 of the first light hole portion 21 of second hand wheel 20, minute wheel 25, the 3rd light hole portion 29 of hour wheel 27, the 4th light hole portion 30 of breast wheel 23 is consistent, and hour wheel 27 is not in " 11 positions ", in addition; In stage in step S59 before the rotation of beginning second hand wheel 20, second hand wheel 20 departs from.Because current supposition has had the light through test section 13 to detect, therefore, specific is that the reference position (00 fen position) of minute wheel 25 is consistent with detection position P.Because do not know whether the reference position (00 second position) of second hand wheel 20 is consistent with detection position P this moment yet; Therefore; Such as stated, return step S30, carry out up to the second hand position probing of step S38 and handle; The reference position (00 second position) that makes second hand wheel 20 is for behind the P of detection position, and the minute hand location confirmation of the step S70 that states after transferring to is handled.
In addition; Pass through the occasion of the light detection of test section 13 at step S61; The 4th light shielding part 29a of imagination hour wheel 27 is corresponding with detection position P, makes minute wheel 1 step (step S62) of 25 rotations, makes the light-emitting component 31 luminous (step S63) of test section 13; Whether received the light of this light-emitting component 31 through detecting photo detector 32, thereby judged whether to detect (step S64) through the light of test section 13.
At this moment; If do not detect, then make 25 each 1 steps of rotation of minute wheel, and judge whether minute wheel 25 has rotated 360 ° (step S65) through the light of test section 13 at step S64; Till 360 ° of minute wheel 25 rotations, repeat action from step S62 to step S64.Even if in the also occasion that detects of the light through test section 13 of action that repeats from step S62 to step S64; Show wrong (step S66); In addition; In the occasion that step S64 has had the light through test section 13 to detect, specific is that the reference position (00 fen position) of reference position " 0 o'clock position ", minute wheel of hour wheel 27 is consistent with detection position P.
Because whether the reference position (00 second position) of also not knowing second hand wheel 20 this moment P in the detection position; Therefore; Return second hand position probing processed steps S30; Execution is handled up to the second hand position probing of step S38, and the hour hands position probing processing of step S70 shown in Figure 21 is transferred to after detection position P is consistent in the reference position that makes second hand wheel 20.In this hour hands position probing processed steps S70 and since second hand wheel 20 and minute wheel 25 reference position separately in the detection position P, therefore, make minute wheel 25 360 ° of rotations and make 30 ° of hour wheel 27 rotations.Make the light-emitting component 31 luminous (step S71) of test section 13, whether received the light of this light-emitting component 31, thereby judge whether to detect (step S72) through the light of test section 13 through detecting photo detector 32.
At this moment, the occasion through the light detection of test section 13 is arranged all when hour wheel 27 rotates 30 ° at every turn, each circular port of the 3rd light hole portion 29 of hour wheel 27 is corresponding with detection position P order, thereby hour wheel 27 is in the integral point position.Therefore, return step S70, with till detection position P is corresponding, repeat action from step S70 to step S72 up to the 4th light shielding part 29a of hour wheel 27.If the light through test section 13 does not detect, the 4th light shielding part 29a that then is judged as hour wheel 27 is corresponding with detection position P, and hour wheel 27 is in " 11 positions ".
In order to confirm that this judges whether correctly; Once more; Make minute wheel 25 360 ° of rotations and make 30 ° (step S73) of hour wheel 27 rotations; Make the light-emitting component 31 luminous (step S74) of test section 13, whether received the light of this light-emitting component 31, thereby judge whether to detect (step S75) through the light of test section 13 through detecting photo detector 32.At this moment; If there is light to detect through test section 13; Then specific is that whole reference position of second hand wheel 20, minute wheel 25, hour wheel 27 is in (0: 00: 00 position), and with transferring to common pointer running and finish this motion flow behind second hand 2, minute hand 3, the hour hands 4 contrast current times (step S76).In addition, in step S75, must there be light to detect normally, do not show wrong (step S77) if supposition has light to detect through test section 13.
Below, explain with reference to Figure 22 three pins of confirming second hand 2, minute hand 3, hour hands 4 each integral point when pointer running usually whether accurately the pin location confirmation handle.
It is to carry out the detection through test section 13 except 11 points, each integral point 23 that this pin location confirmation is handled; In the occasion that has had through the light detection of test section 13; Hour hands 4 are regarded as accurately; And confirm whether second hand 2 is handled accurately, confirm to only limit to minute hand 3 and depart from occasion less than negative 1 hour.In addition, with regard to this pin location confirmation is handled, if the integral point of confirming from being correlated with was through 10 seconds; Then minute wheel 1 step of 25 rotations, breast wheel 23 rotations are 30 ° thereupon, thereby stop the detection position P of test section 13; Therefore, be necessary in these 10 seconds, to confirm departing from of second hand 2.
Therefore; In a single day this pin location confirmation is handled and has been arrived just startup of integral point, make the light-emitting component 31 luminous (step S80) of test section 13, through detecting the light whether photo detector 32 has received this light-emitting component 31; Thereby judge whether to detect (step S81) through the light of test section 13; If the light through test section 13 detects, then be judged as second hand 2 at least, minute hand 3, hour hands 4 if one inaccurate, and transfer to three above-mentioned pin position probing and handle.
In addition; If there is light to detect through test section 13; The first light hole portion 21 that then is judged as second hand wheel 20 is corresponding with the detection position P of test section 13, and the preceding not detection number of times that passes through test section 13 till is once carried out zero clearing, and will not detect zone bit and be made as " 0 " (step S82); Make second hand wheel 20 carry out the common running in 1 step (6 °) and make second hand 2 carry out common pointer and turn round (step S83), and judge whether second hand wheel 20 rotated for 2 steps (12 °) (step S84).Promptly, second hand wheel 20 only rotated for 1 step (6 °), then the first circular port 21a of second hand wheel 20 just not exclusively leaves the detection position P of test section 13, therefore, the worked light of test section 13 of per 2 steppings of second hand wheel 20 is detected.
In this step S84,, then till second hand wheel 2 steps of 20 rotations, make second hand 2 carry out the common pointer running in 1 step (6 °) if second hand wheel 20 did not rotate for 2 steps; If second hand wheel 20 rotated for 2 steps, then make the light-emitting component 31 luminous (step S85) of test section 13, whether received the light of this light-emitting component 31 through detecting photo detector 32, thereby judged whether to detect (step S86) through the light of test section 13.At this moment; If there is light to detect through test section 13; Then any of the first circular port 21a of the first light hole portion 21 of second hand wheel 20, second, third each slotted hole 21b, 21c is consistent with the detection position P of test section 13; Be judged as before beginning step S84, second hand wheel 20 is inaccurate, and transfers to three above-mentioned pin position probing and handle.
In addition; In step S86, pass through the occasion of the light detection of test section 13; Shown in Figure 15 B, it is corresponding with detection position P to be judged as each light shielding part 21d～21f of first of second hand wheel 20～3rd, and the not detection number of times through test section 13 is counted; And add " 1 " (step S87), and judge that whether in succession this do not detect number of times three times (step S88) to not detecting sign.At this moment, do not have three times in succession, then return step S83, make second hand 2 carry out common pointer running, repeat action up to step S87 if this detects number of times.
In addition; In step S88; Like state,, do not detect number of times three times in succession if when integral point has passed through 6 seconds from the state of Figure 18 D to Figure 18 B; Any of the first light shielding part 21d and the second light shielding part 21e that then is judged as second hand wheel 20 is corresponding with detection position P, makes second hand wheel 1 step (6 °) of 20 rotations and makes second hand 2 carry out common pointer running (step S89).Judge whether second hand wheel 20 then rotated for 2 steps (step S90), till second hand wheel 2 steps of 20 rotations, make second hand 2 carry out common pointer running.
If second hand wheel 20 rotated for 2 steps; Then make the light-emitting component 31 luminous (step S91) of test section 13; Through detecting the light whether photo detector 32 has received this light-emitting component 31, judge whether to detect (step S92) through the light of test section 13 in the moment of passing through from integral point 8 seconds.At this moment, if not through the light detection of test section 13, the second light shielding part 21e of second hand wheel 20 is corresponding with detection position P, and the position that is judged as second hand wheel 20 is accurate, and transfers to three above-mentioned pin position probing and handle.In addition, in step S92, shown in Figure 15 E; If there is light to detect through test section 13; Then the second slotted hole 21b's of the detection position P of test section 13 and second hand wheel 20 is a part of corresponding, and the position that is judged as second hand wheel 20 is accurate, and finishes this motion flow after transferring to common running.
Like this, adopt this pointer type wristwatch, owing to possess: utilize the rotation of second hand wheel 20 to make first drive system 11 of second hand 2 pointers running; Utilize the running separately of minute wheel 25, hour wheel 27 to make minute hand 3, hour hands 4 second drive system 12 of pointer running respectively; And be used for judge the test section 13 of each position of rotation of second hand wheel 20, minute wheel 25, hour wheel 27 go up the detection that first～the 3rd each light hole portion 21,28,29 of being provided with respectively only do not see through separately with the second hand wheel 20, minute wheel 25, the hour wheel 27 that overlap the state rotation on same axle, the first light hole portion 21 of second hand wheel 20 has: the first circular port 21a that is arranged on the reference position of second hand wheel 20; And the pointer rotation direction side of the second hand 2 of this first circular port 21a and with the both sides of its reverse direction side across first, second light shielding part 21d of different interval, second, third slotted hole 21b, the 21c that 21e is provided with; Therefore, can be exactly and detect the position of rotation of second hand wheel 20 reliably.
Promptly, in this wrist-watch; When second hand wheel 20 rotations; Utilization is different with the second light shielding part 21e at the first light shielding part 21d of the both sides of the first circular port 21a that is positioned at second hand wheel 20 through the not detected state of test section 13; And the second light shielding part 21e from the 3rd slotted hole 21c to the first circular port 21a that is positioned at a side opposite with the pointer rotation direction of second hand 2 is carried out the counting that does not detect number of times through test section 13; In this count number is predefined to after fixing a number, and when then test section 13 detects the first circular port 21a, can be judged as second hand 2 and point to integral points (00 second position).Thus, the rotation of first step motor 17 needn't be provided with the light hole portion as existing example on No. five wheels 18 that second hand wheel 20 transmits, can be exactly and detect the position of rotation of second hand wheel 20 reliably.
In this occasion; Second, third slotted hole 21b, the 21c of the first light hole portion 21 of second hand wheel 20 is corresponding respectively circular-arc slotted holes that are provided with on the rotation motion track of the first circular port 21a of second hand wheel 20; Through between second, third slotted hole 21b on the diagonal line of the first circular port 21a, 21c, the 3rd light shielding part 21f being set; Even if second, third slotted hole 21b, 21c are set on second hand wheel 20; Also can guarantee the intensity of second hand wheel 20, and can form second, third slotted hole 21b, 21c in long enough ground by the 3rd light shielding part 21f.Thus; When using the test section 13 that constitutes by light-emitting component 31 and photo detector 32 to detect the first light hole portion 21 of second hand wheel 20 optically; Can make through the light of second, third slotted hole 21b, 21c to see through tolerance more; Therefore, even if high speed rotating second hand wheel 20 also can detect the position of rotation of second hand wheel 20 exactly.
In addition; In this wrist-watch; Because the second light hole portion 28 of minute wheel 25 is arranged on a circular port of the reference position (00 fen position) of minute wheel 25; The circular port that the 3rd light hole portion 29 of hour wheel 27 is provided with 30 ° interval along circumference from the reference position of hour wheel 27; Between the circular port of reference position and the 11st circular port, be provided with the 4th light shielding part 29a, therefore, when minute wheel 25 being revolved turn around; Promptly 11 holes orders are corresponding in the 3rd light hole portion 29 of the second light hole portion 28 of minute wheel 25 and hour wheel 27 except the 4th light shielding part 29a of hour wheel 27, thereby can judge easily whether the reference position (00 fen position) that makes minute wheel 25 at every turn revolve minute wheel 25 when turning around is consistent with detection position P.
In this occasion; Hour wheel 27 revolves when turning around at minute wheel 25 at every turn and rotates 30 °; Therefore; Can make 11 circular ports of the 3rd light hole portion 29 of hour wheel 27 corresponding with the detection position P order of test section 13 together with the second light hole portion 28 of minute wheel 25; And can be specific for the 4th light shielding part 29a position corresponding with the detection position P of test section 13 of hour wheel 27 is exactly the position (11 positions) of 30 ° of fronts of hour wheel 27, can specificly be under this state, minute wheel 25 is further rotated a circle and the position that makes hour wheel 27 rotate 30 ° is exactly reference position (0 position); Therefore, can easily judge the reference position (0 position) of hour wheel 27.
In addition; Second drive system 12 possesses and is used for breast wheel 23 that the rotation of second step motor 22 is transmitted to minute wheel 25; Because on this breast wheel 23, being provided with by the second light hole portion 28 with minute wheel 25 is the 4th light hole portion 30 that a corresponding circular port of circular port constitutes, therefore, when detecting the reference position of minute wheel 25 making 25 each 1 steps (1 °) of rotation of minute wheel; Minute wheel 25 only rotates 1 ° with the rotation of 1 step; Shown in figure 23, even if the second light hole portion 28 of minute wheel 25 is the detection position P that circular port not exclusively departs from test section 13, also utilize breast wheel 23 with 30 ° of 1 step rotations; Can stop detection position P reliably by enough this breast wheels 23; Therefore, even if each step rotation of minute wheel 25 is carried out detecting through the light of test section 13, also can prevent the error-detecting to minute wheel 25 of test section 13 reliably.
Yet, with regard to first drive system, 11 second hand wheels 20, owing to the first light shielding part 21d of the pointer rotation direction that is positioned at second hand 2 among its first, second each light shielding part 21d, the 21e; Because the first circular port 21a with second hand wheel 20 is a benchmark; And with about 48 ° interval, that is to say, be arranged on pointer rotation direction one side of second hand 2 with the interval of the first circular port 21a about three times (actual is the width about 36 ° to circumference); Thereby when making second hand 2 carry out common pointer running in each 1 step (6 °) of rotation of second hand wheel 20; If make second hand wheel 6 steps (36 °) of 20 rotations, then the first light shielding part 21d passes through detection position P, thereby in next 2 steps rotation, can make the part of the second slotted hole 21b corresponding with detection position P; Thus, with the position of rotation that just can confirm second hand wheel 20 in 8 seconds.
When promptly, whether the pin position of second hand 2 is correct when confirming common pointer running; If begin through 10 seconds from integral point, then minute wheel 25 rotations are 1 °, and breast wheel 23 rotations are 30 ° thereupon; The 4th light hole portion 30 that makes departs from detection position P; Thereby breast wheel 23 stops detection position P, therefore, is necessary these the 10 seconds pin positions with interior affirmation second hand 2.Therefore, so long as less than the contrast of 1 hour pointer, then whether the pin position of second hand 2 is correct when integral point begins just to confirm that common pointer turned round with 8 seconds, therefore, and can be effectively and promptly confirm the pin position of second hand 2.
In addition; The second light shielding part 21e that is positioned at a side opposite among each light shielding part 21d of first, second of second hand wheel 20, the 21e with the pointer rotation direction of second hand 2; Because the first circular port 21a with second hand wheel 20 is a benchmark; And with 60 ° interval roughly; That is to say; With the interval of about four times of the first circular port 21a (actual is the width about 48 ° to circumference), being equivalent to one first interval about circular port 21a and being arranged on a side opposite with the pointer rotation direction of second hand 2 than the interval of the first light shielding part 21d is also long, thus to through test section 13 for the second light shielding part 21e detected state is not counted the time, through making 20 each 2 steps (12 °) of rotation of second hand wheel; Can be specific for not detecting number of times in succession after four times, then to have detected the position of the first circular port 21a be exactly the reference position (00 second position) of second hand wheel 20 to test section 13.Thus, can be exactly and detect the position of rotation of second hand wheel 20 reliably.
Have again; Since the first light shielding part 21d of second hand wheel 20 be positioned at its diagonal line on the 3rd slotted hole 21c a part of corresponding of the first light hole portion 21; The second light shielding part 21e be positioned at its diagonal line on the second slotted hole 21b a part of corresponding of the first light hole portion 21; The 3rd light shielding part 21f be positioned at its diagonal line on the first circular port 21a a part of corresponding of the first light hole portion 21; Thereby under any state corresponding of first～the 3rd light shielding part 21d～21f,, then can make the first light hole portion 21 must be corresponding with detection position P if make 30 steps (180 °) of second hand wheel 20 rotation with the detection position P of test section 13.Therefore; When detecting each position of rotation of minute wheel 25 and hour wheel 27; Rotation half-turn action through second hand wheel 20 just can judge whether rapidly second hand wheel 20 with respect to detection position P depart from, perhaps minute wheel 25 and hour wheel 27 depart from; Thus, can shorten the position probing required time significantly.
In addition; In the above-described embodiment; For on second hand wheel 20, second, third slotted hole 21b of the first light hole portion 21, the occasion that 21c forms continuous circular-arcly slotted hole respectively being illustrated; But second hand wheel 20 is not limited to this, also can as first modified example shown in Figure 24 for example, constitute.
Promptly, the second hand wheel 20 of this first modified example, shown in figure 24, the second slotted hole 21b that constitutes the first light hole portion 21 is divided into two slotted hole 40a, 40b, and the 3rd slotted hole 21c also is divided into two slotted hole 41a, slotted hole 41b.
In this occasion; The slotted hole 40a adjacent of the second slotted hole 21b with the first circular port 21a; With the first circular port 21a is benchmark, and with about 48 °～96 ° interval, promptly with the length setting of the first circular port 21a about five times (actual is the width about 60 ° to circumference); The slotted hole 40b that is positioned at a side opposite among the second slotted hole 21b with the first circular port 21a; With the first circular port 21a is benchmark, and with about 120 °～168 ° interval, promptly with clean long setting of the first circular port 21a about five times (are the width about 60 ° to circumference).Be provided with between two slotted hole 40a of this second slotted hole 21b, the 40b the 5th light shielding part 42, the five light shielding parts 42 be arranged to be positioned at second hand wheel 20 diameters on slotted hole 40a a part of corresponding of the second slotted hole 21b.
In addition; The slotted hole 41a adjacent of the 3rd slotted hole 21c with the first circular port 21a; With the first circular port 21a is benchmark, and with about 60 °～96 ° interval, promptly with the length setting of the first circular port 21a about four times (actual is the width about 48 ° to circumference); The slotted hole 41b that is positioned at a side opposite among the 3rd slotted hole 21c with the first circular port 21a; With the first circular port 21a is benchmark, and with about 120 °～168 ° interval, promptly with clean long setting of the first circular port 21a about five times (are the width about 60 ° to circumference).Be provided with between two slotted hole 41a of the 3rd slotted hole 21c, the slotted hole 41b the 6th light shielding part 43, the six light shielding parts 43 be arranged to be positioned at second hand wheel 20 diameters on slotted hole 41a a part of corresponding of the 3rd slotted hole 21c.
Have again; Between the slotted hole 40a of the first circular port 21a of reference position and the second slotted hole 21b that is adjacent; Identical ground with above-mentioned embodiment, be provided with the first light shielding part 21d; Between the slotted hole 41a of the first circular port 21a of reference position and the 3rd slotted hole 21c that is adjacent, also with the above-mentioned identical ground of embodiment, be provided with the second light shielding part 21e.Have again, and between the slotted hole 41b of the slotted hole 40b of the second slotted hole 21b on second hand wheel 20 diameters and the 3rd slotted hole 21c with respect to the first circular port 21a, also with the above-mentioned identical ground of embodiment, be provided with the 3rd light shielding part 21f.
In this occasion; The first light shielding part 21d is a benchmark with the first circular port 21a also; And with about 48 ° interval; Promptly the interval with about three times of the first circular port 21a (actual is the width about 36 ° to circumference) is provided with, and constitute be positioned at second hand wheel 20 diameters on the slotted hole 41b of the 3rd slotted hole 21c corresponding.In addition; The second light shielding part 21e is a benchmark with the first circular port 21a; And with about 60 ° interval; Promptly with the clear spacing setting of about four times of the first circular port 21a (actual is the width about 48 ° to circumference), and constitute be positioned at second hand wheel 20 diameters on the slotted hole 40b of the second slotted hole 21b corresponding.Three, the 5th, the 6th each light shielding part 21f, 42,43 is with the size setting roughly the same with the first circular port 21a, and constitute be positioned at second hand wheel 20 diameters on the slotted hole 40a of slotted hole 41a, the second slotted hole 21b of the first circular port 21a, the 3rd slotted hole 21c corresponding respectively.
In this second hand wheel 20; Also constitute under the first～the 3rd, the 5th, the 6th each light shielding part 21d～21f, 42, any state corresponding of 43 with the detection position P of test section 13; If make second hand wheel 30 steps (180 °) of 20 rotations; Then any of two slotted hole 41a of two slotted hole 40a of the first circular port 21a of the first light hole portion 21, the second slotted hole 21b, 40b, the 3rd slotted hole 21c, slotted hole 41b must be corresponding with the detection position P of test section 13, therefore, has the effect identical with above-mentioned embodiment; In addition; Particularly the second slotted hole 21b is divided into two slotted hole 40a, 40b, and the 3rd slotted hole 21c also is divided into two slotted hole 41a, slotted hole 41b, and be provided with the 5th, the 6th light shielding part 42,43 respectively between these two slotted hole 40a cutting apart, 40b and between slotted hole 41a, slotted hole 41b; Therefore, more can improve the intensity of second hand wheel 20 than above-mentioned embodiment.
In addition; In first modified example of above-mentioned embodiment and second hand wheel 20; The first light shielding part 21d with the interval of the first circular port 21a of the second slotted hole 21b of the first light hole portion 21 and reference position, promptly be benchmark with the first circular port 21a; And, promptly set with the first circular port 21a about three times (actual is the width about 36 ° to circumference) with about 48 ° interval; The second light shielding part 21e with the interval of the first circular port 21a of the 3rd slotted hole 21c of the first light hole portion 21 and reference position, promptly be benchmark with the first circular port 21a; And with about 60 ° interval; The occasion of promptly setting with the first circular port 21a about four times (actual is the width about 48 ° to circumference) is narrated; But be not limited to this, also can the such formation of second modified example shown in figure 25.
This second modified example promptly; Shown in figure 25; Constitute the first light shielding part 21d with the interval of the first circular port 21a of the second slotted hole 21b of the first light hole portion 21 and reference position, promptly be benchmark with the first circular port 21a; And, promptly set with the first circular port 21a about two times (actual is the width about 24 ° to circumference) with about 36 ° interval; The second light shielding part 21e with the interval of the first circular port 21a of the 3rd slotted hole 21c of the first light hole portion 21 and reference position, promptly be benchmark with the first circular port 21a; And, promptly set with the first circular port 21a about three times (actual is the width about 36 ° to circumference) with about 48 ° interval.
In this occasion, second slotted hole 21b ground identical, be divided into two slotted hole 40a, 40b with first modified example, be provided with the 5th light shielding part 42 therebetween.The slotted hole 40a adjacent with the first circular port 21a of this second slotted hole 21b is benchmark with the first circular port 21a; And with about 36 °～96 ° interval, promptly in fact to be formed on the first circular port 21a, one side than the also long length that is equivalent to one first circular port 21a of first modified example.
In addition, the 3rd slotted hole 21c ground identical, be divided into two slotted hole 41a, 41b, be provided with the 6th light shielding part 43 therebetween with first modified example.The 3rd slotted hole 21c and adjacent 41a is benchmark with the first circular port 21a, and with about 264 °～312 ° interval, promptly in fact to be formed on the first circular port 21a, one side than the also long length that is equivalent to one first circular port 21a of first modified example.
In this occasion, the first light shielding part 21d between the first circular port 21a of the second slotted hole 21b of the first light hole portion 21 and reference position also constitutes with the slotted hole 41b that is positioned at the 3rd slotted hole 21c on second hand wheel 20 diameters corresponding.In addition, the second light shielding part 21e between the first circular port 21a of the 3rd slotted hole 21c of the first light hole portion 21 and reference position constitutes with the slotted hole 40b that is positioned at the second slotted hole 21b on second hand wheel 20 diameters corresponding.Have again, the 3rd, the 5th, the 6th each light shielding part 21f, 42,43 also constitute be positioned at second hand wheel 20 diameters on the slotted hole 40a of slotted hole 41a, the second slotted hole 21b of the first circular port 21a, the 3rd slotted hole 21c corresponding respectively.
In this second hand wheel 20; Also constitute under the first～the 3rd, the 5th, the 6th each light shielding part 21d～21f, 42, any state corresponding of 43 with the detection position P of test section 13; If make second hand wheel 30 steps (180 °) of 20 rotations; Then any of two slotted hole 41a of two slotted hole 40a of the first circular port 21a of the first light hole portion 21, the second slotted hole 21b, 40b, the 3rd slotted hole 21c, slotted hole 41b must be corresponding with the detection position P of test section 13, therefore, has and above-mentioned embodiment and the identical effect of first modified example; In addition, also has following action effect.
Promptly, because the first light shielding part 21d between the first circular port 21a of the second slotted hole 21b of the first light hole portion 21 and reference position; Forming with the first circular port 21a is benchmark, and with about 36 ° interval, promptly with about two times (actual is the width about 24 ° to circumference) of the first circular port 21a; Therefore; When second hand wheel 20 made second hand 2 carry out the running of common pointer with the rotation of 1 step (6 °) at every turn, if second hand wheel 4 steps (24 °) of 20 rotations, then the first light shielding part 21d was through detection position P; In next 2 step rotations (the 6th second); Can make the part of slotted hole 40a of the second slotted hole 21b corresponding, thus, can after having passed through detection position P, confirm the position of rotation of second hand wheel 20 in enough 6 seconds with detection position P.Therefore, so long as contrast less than 60 minutes pointer, whether the pin position of second hand 2 is correct in the time of just confirming that quickly common pointer turns round than above-mentioned embodiment.
In addition, because the second light shielding part 21e between the first circular port 21a of the 3rd slotted hole 21c of the first light hole portion 21 and reference position, forming with the first circular port 21a is benchmark; And with about 48 ° interval; Promptly with about three times of the first circular port 21a (actual is the width about 36 ° to circumference), therefore, to through test section 13 for the second light shielding part 21e detected state is not counted the time; Through making 20 each 2 steps (12 °) of rotation of second hand wheel; Do not detecting number of times in succession after three times thereby can be judged as, then to have detected the position of the first circular port 21a be exactly the reference position (00 second position) of second hand wheel 20 to test section 13, thus; The reference position of second hand 2 can be detected than above-mentioned embodiment quickly, detection speed can be further improved.
Have again; In above-mentioned embodiment and each modified example thereof; Made round-shaped occasion about the shape that will be separately positioned on first～the 3rd each light hole portion 21,28,29 on second hand wheel 20, minute wheel 25, the hour wheel 27 and be illustrated, and also can be other shapes such as square, trapezoidal, polygon.
Have, in the occasion of embodiment, the position that the pin position Detection is carried out is following: the first circular port 21a that is arranged on the second hand wheel 20 is positioned at 00 second position again; The second light hole portion 28 that is arranged on the minute wheel 25 is positioned at 00 fen position; One the 3rd light hole portion 29 that is arranged in 11 each the 3rd light hole portions 29 on the hour wheel 27 is positioned at 0 position; But be not limited to this; For example, the position of being detected also can be as follows: the first circular port 21a that is arranged on the second hand wheel 20 is positioned at 55 seconds positions; The second light hole portion 28 that is arranged on the minute wheel 25 is positioned at 55 fens positions; One the 3rd light hole portion 29 that is arranged in 11 each the 3rd light hole portions 29 on the hour wheel 27 is positioned at 11: 55 positions.
In addition, in above-mentioned embodiment and each modified example thereof,, may not be wrist-watch though be illustrated about the occasion on the wrist-watch that is applied to pointer-type, can also be applied to the clock and watch of the various pointer-type such as clock and watch, alarm clock, desk clock, wall clock of for example travelling.

Claims (15)

1. hand position detecting device possesses:
Second hand (2) is carried out the second hand wheel (20) of pointer running;
Minute hand (3) is carried out the minute wheel (25) of pointer running;
Hour hands (4) are carried out the hour wheel (27) of pointer running;
To being separately positioned on the luminescence unit (31) of first～the 3rd light hole portion (21,28, the 29) irradiates light on above-mentioned second hand wheel, above-mentioned minute wheel, the above-mentioned hour wheel;
The light receiving unit (32) of the light of above-mentioned first～the 3rd light hole portion (21,28,29) is shone and has passed through in reception from this luminescence unit (31); And
Be used for detecting the light hole portion detecting unit (13) of judging each position of rotation of above-mentioned second hand wheel, above-mentioned minute wheel, above-mentioned hour wheel from only not seen through of sending of above-mentioned luminescence unit (31), it is characterized in that,
The above-mentioned first light hole portion (21) possesses: first light that is arranged on the reference position of above-mentioned second hand wheel detects hole (21a); And separate first, second light shielding part (21d, 21e) and second, third light of being provided with detects hole (21b, 21c), above-mentioned first, second light shielding part (21d, 21e) detect at this first light the hole above-mentioned second hand pointer rotation direction side and be provided with across different interval ground with the both sides of its reverse direction side.
2. hand position detecting device according to claim 1 is characterized in that,
The light that the above-mentioned second light hole portion (28) is arranged on the reference position of above-mentioned minute wheel detects the hole, and above-mentioned the 3rd light hole portion (29) of above-mentioned hour wheel detects holes from the reference position of above-mentioned hour wheel along circumference with 11 light that the angle intervals of 30 degree is provided with.
3. hand position detecting device according to claim 1 is characterized in that,
Above-mentioned second, third light detection hole is the corresponding respectively circular-arc slotted hole that is provided with on the rotation motion track in above-mentioned first light detection hole of above-mentioned second hand wheel; Detect between the hole at above-mentioned second, third light; To detect the hole mode on the same diameter of above-mentioned second hand wheel that coexists, be provided with the 3rd light shielding part (21f) with above-mentioned first light.
4. hand position detecting device according to claim 3 is characterized in that,
Above-mentioned first light shielding part (21d) of pointer rotation direction one side that is positioned at above-mentioned second hand (2) in above-mentioned first, second light shielding part (21d, 21e); Detecting the hole with above-mentioned first light is benchmark; And, be arranged on pointer rotation direction one side of above-mentioned second hand with the angle intervals that 36 degree～48 are spent
Be positioned at above-mentioned second light shielding part (21e) of a side opposite with the pointer rotation direction of above-mentioned second hand, detecting the hole with above-mentioned first light is benchmark, and with the angle intervals that 48 degree～60 are spent, is arranged on a side opposite with the pointer rotation direction of above-mentioned second hand.
5. hand position detecting device according to claim 3 is characterized in that,
Above-mentioned first light shielding part (21d) detects a part of corresponding of hole (21c) with above-mentioned the 3rd light, and above-mentioned second light shielding part (21e) detects a part of corresponding of hole (21b) with above-mentioned second light, and above-mentioned the 3rd light shielding part (21f) is corresponding with above-mentioned first light detection hole (21a).
6. hand position detecting device according to claim 1 is characterized in that,
Also possess the breast wheel (23) that the rotation of CD-ROM drive motor (22) is transmitted to above-mentioned minute wheel (25), this breast wheel is provided with the four light hole portion (30) corresponding with the above-mentioned second light hole portion (28) of above-mentioned minute wheel.
7. hand position detecting device is characterized in that possessing:
Second hand wheel (20) with first light hole portion (21), this first light hole portion (21) comprises that first light that is arranged on the reference position detects hole (21a) and second, third light detects hole (21b, 21c);
Be configured on the same axle with this second hand wheel, and have the minute wheel (25) of the second light hole portion (28);
Be configured on the same axle with above-mentioned second hand wheel and above-mentioned minute wheel, and have the hour wheel (27) of the 3rd light hole portion (29);
Light hole portion detecting unit (13); Have luminescence unit (31), this light hole portion detecting unit (13) detects from what above-mentioned luminescence unit (31) sent and has not only seen through above-mentioned first～the 3rd light hole portion and judged each position of rotation of above-mentioned second hand wheel, above-mentioned minute wheel, above-mentioned hour wheel; And
Second hand reference position detecting unit,
Above-mentioned second, third light detection hole (21b, 21c) separates first, second light shielding part (21d, 21e) and is provided with, and above-mentioned first, second light shielding part is arranged on the both sides that this first light detects the hole with different length,
Above-mentioned second hand reference position detecting unit rotates above-mentioned second hand wheel with predefined rotation angle unit on one side; Have or not on one side through what above-mentioned light hole portion detecting unit carried out that light detects; Following occasion with the position of the detected light of this light hole portion detecting unit as the reference position of above-mentioned second hand wheel promptly first light detect the position in hole; Above-mentioned occasion be above-mentioned second hand reference position detecting unit differentiate bright dipping not the read-around ratio of detected state reached predefined number of times; And thereafter; Determine when being further rotated above-mentioned second hand wheel with predefined rotation angle unit, above-mentioned light hole portion detection goes out the occasion of the light that sends from above-mentioned luminescence unit (31), and above-mentioned light not detected state is the state that does not have light to detect.
8. hand position detecting device according to claim 7 is characterized in that,
Further possessing with above-mentioned second hand wheel (20) interlock makes second hand (2) carry out the pointer running control module of pointer running.
9. hand position detecting device according to claim 7 is characterized in that,
Further possess the occasion that has surpassed above-mentioned predefined number of times in the read-around ratio that determines above-mentioned not detected state, above-mentioned the 3rd light hole portion (29) of judging the above-mentioned second light hole portion (28) and the above-mentioned hour wheel (27) of above-mentioned minute wheel (25) has departed from the judging unit that departs from through the detection position (P) of above-mentioned light hole portion detecting unit.
10. hand position detecting device according to claim 7 is characterized in that,
Further possess and detect hole (21a), above-mentioned second light at above-mentioned first light and detect hole (21b), above-mentioned the 3rd light and detect under the corresponding state in the detection position (P) of any neither and above-mentioned light hole portion's detecting unit (13) in hole (21c); Make above-mentioned second hand wheel Rotate 180 degree, and make above-mentioned first light detection hole of the above-mentioned first light hole portion, above-mentioned second light detect any hole site corresponding unit corresponding in hole, above-mentioned the 3rd light detection hole with above-mentioned detection position.
11. a hand position detecting device is characterized in that possessing:
Second hand wheel (20) with first light hole portion (21);
Be configured on the same axle with this second hand wheel, and have the minute wheel (25) of the second light hole portion (28) that constitutes by a light detection hole that is arranged on the reference position;
Be configured on the same axle with above-mentioned second hand wheel and above-mentioned minute wheel, and have from the reference position along circumference and be provided with the hour wheel (27) that 11 light detect the 3rd light hole portion (29) in holes with the angle intervals of 30 degree;
Having a light by the above-mentioned second light hole portion of above-mentioned minute wheel detects the hole a pairing light detects the breast wheel (23) of the 4th light hole portion (30) that the hole constitutes in the said reference position;
Light hole portion detecting unit (13); Have luminescence unit (31), this light hole portion detecting unit (13) detects from what above-mentioned luminescence unit (31) sent and has not only seen through above-mentioned first～the 3rd light hole portion and judged each position of rotation of above-mentioned second hand wheel, above-mentioned minute wheel, above-mentioned hour wheel; And
Above-mentioned minute wheel revolved turn around; And light of the above-mentioned second light hole portion detects a light of the 4th light hole portion of hole and above-mentioned breast wheel to detect the hole corresponding, thereby the position that the light from the light of above-mentioned luminescence unit (31) that will have that above-mentioned light hole portion detecting unit carried out detects is as the minute hand reference position detecting unit of the reference position of above-mentioned minute wheel.
12. hand position detecting device according to claim 11 is characterized in that,
Further possesses integral point reference position detecting unit; It will revolve at each above-mentioned minute wheel (25) and turn around and when making the angle of above-mentioned hour wheel (27) rotation 30 degree, the light of the above-mentioned second light hole portion (28) of above-mentioned minute wheel detect hole and above-mentioned hour wheel above-mentioned the 3rd light hole portion (29) thus above-mentioned 11 light detect the corresponding integral point position of hole order with position of the light detection that above-mentioned light hole portion's detecting unit (13) carried out as above-mentioned hour wheel.
13. a pin position electronic equipment is characterized in that,
On equipment body, possesses aforesaid right requirement 1 described hand position detecting device.
14. a pin position electronic equipment is characterized in that,
On equipment body, possess aforesaid right requirement 7 described hand position detecting devices.
15. a pin position electronic equipment is characterized in that,
On equipment body, possess aforesaid right requirement 11 described hand position detecting devices.
CN2008101660037A 2007-09-28 2008-09-28 Hand position detecting device and electronic apparatus including the device Active CN101398663B (en)

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JP2007253831 2007-09-28
JP2007-253830 2007-09-28
JP2007253830A JP4650472B2 (en) 2007-09-28 2007-09-28 Needle position detector
JP2007-253831 2007-09-28
JP2007253830 2007-09-28
JP2007253831A JP4556980B2 (en) 2007-09-28 2007-09-28 Needle position detector

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JP5936150B2 (en) * 2014-03-18 2016-06-15 カシオ計算機株式会社 Electronics and watches
JP6370882B2 (en) * 2014-04-01 2018-08-08 シチズン時計株式会社 clock
JP6755714B2 (en) * 2015-08-21 2020-09-16 セイコーインスツル株式会社 Movement and electronic clock
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