CN106909063A - Pointer position detects structure and clock and watch - Google Patents
Pointer position detects structure and clock and watch Download PDFInfo
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- CN106909063A CN106909063A CN201610991720.8A CN201610991720A CN106909063A CN 106909063 A CN106909063 A CN 106909063A CN 201610991720 A CN201610991720 A CN 201610991720A CN 106909063 A CN106909063 A CN 106909063A
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- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
- G04D7/004—Optical measuring and testing apparatus
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Abstract
Pointer position detects structure and clock and watch.The position detection accuracy for making each gear by simple structure is improved, detect the position for carrying out each gear in multiple gears using optical sensor, multiple gear axles different from each other and different driving, with the position for overlapping each other vertically, optical sensor is in the axial direction across the public optical sensor at the position for overlapping.In support gear (5, 6) the base plate opening (31A) for passing through the detection light of optical sensor is formed with shell, in gear (5, 6) be formed with can according to respective rotation position the gear opening relative with base plate opening (31A) (35 in the axial direction, 36), base plate opening (31A) vertically with gear (5, 6) respective gear opening (35, 36) end and the gear opening (35 of each gear of the side of overlap are started, 36) the end for starting Chong Die side with base plate opening (31A) vertically has line-like area (R1 consistent with each other vertically, R5, R6).
Description
Technical field
The present invention relates to pointer position detection structure and clock and watch.
Background technology
In the past, in pointer position detection structure, it is known to such structure below：For being located at different drivings each other
Train and axle different from each other, 2 gears for overlapping each other at least partially vertically, the respectively opening of forming position detection
(gear slit), and shared 1 position-detection sensor (optical sensor) carries out the position detection of each gear (referring for example to special
Sharp document 1).Being formed with the base plate being configured between the light-emitting component of optical sensor and photo detector makes the inspection of optical sensor
The opening (base plate slit) that light-metering is passed through, by the base plate slit, reduces the detection light quantity of optical sensor, and only in each gear
Slit enables detection light to pass through in the case of overlapping such that it is able to carry out the position detection of each gear.
Patent document 1：No. 3328518 publications of Japanese Patent No.
In addition, in said structure, each gear slit is in the arc-shaped along the circumferencial direction of each gear, the circumferencial direction
End in along each gear radial direction it is linear.
On the other hand, base plate slit is formed as a circumferencial direction for gear in 2 gears along axle different from each other
Fan-shaped, the end of the circumferencial direction is linear in the radial direction along one gear.
Therefore, when the rotation position of one gear is detected, due to the circumferencial direction of the gear slit in a side
After end has just reached the end of the circumferencial direction of base plate slit, opening makes so that width corresponding with the line segment of the end is opened wide
Detection light starts to pass through quickly, therefore, the detection light quantity of optical sensor steeply rises, and the detection error of optical sensor is smaller.
On the other hand, relative to one the opposing party gear slit circumferencial direction end and base plate slit
The end of circumferencial direction is inconsistent and intersect, detect another gear rotation position when, because the gear in the opposing party is narrow
After the end of the circumferencial direction of seam has just reached the end of the circumferencial direction of base plate slit, opening is gradually somewhat opened wide and makes detection
Light gradually starts to pass through, therefore, the detection light quantity of optical sensor slowly rises, and the detection error of optical sensor easily becomes big.
The content of the invention
The present invention is to complete in view of the foregoing, it is intended that in pointer position detects structure and clock and watch, leading to
Crossing simple structure improves the position detection accuracy of each gear, and the pointer position detection structure and clock and watch utilize optical sensor
The position detection of each gear in multiple gears, the multiple gear axle different from each other and different driving are carried out, and is had
The position for overlapping each other vertically, the optical sensor is in the axial direction across the public light sensing at the position of the overlap
Device.
The solution of above-mentioned problem
A kind of [application examples 1] pointer position detection structure, it carries out each gear in multiple gears using optical sensor
Position detection, the multiple gear axle different from each other and different driving, and with the position for overlapping each other vertically are described
Optical sensor is in the axial direction across the public optical sensor at the position of the overlap, it is characterised in that described many supporting
The base plate opening for passing through the detection light of the optical sensor is formed with the shell of individual gear, is formed on the multiple gear
Have a gear opening, the gear opening can according to the respective rotation position of the multiple gear in the axial direction with the base plate
Opening is relative, and the gear opening vertically with each gear in the multiple gear of the base plate opening starts Chong Die one
The end for starting Chong Die side with the base plate opening vertically tool of the gear opening of the end of side and each gear
There is line-like area consistent with each other vertically.
[application examples 2] above-mentioned pointer position detection structure is characterised by that the gear opening of each gear is in each
The shape of slit extended on the circumferencial direction of gear, the line-like area is across the whole slit width of each gear opening and shape
Into.
[application examples 3] above-mentioned pointer position detection structure is characterised by, the base plate opening vertically with each gear
Chong Die one is vertically terminated in the 2nd end and each gear opening that the side for overlapping is terminated in opening with the base plate opening
2nd end of side has the 2nd line-like area consistent with each other vertically.
[application examples 4] a kind of clock and watch, it is characterised in that the clock and watch have：Above-mentioned pointer position detection structure；Receive electricity
Road, it receives the time information for representing the moment；And control unit, its time information received according to the receiving circuit
The position of each gear in the multiple gear gone out with pointer position detection structure detection, school is carried out to the display moment
Just.
Invention according to application examples 1 and application examples 4, is detecting multiple gears of axle different from each other and different driving
During the rotation position of each gear, though the gear opening of any one gear start with base plate opening vertically it is Chong Die
The end of side reach base plate opening start the end of Chong Die side with the gear opening of each gear vertically in the case of,
Because opening makes detection light start to pass through so that the corresponding width in the line-like area of these ends is opened wide immediately after quickly,
Therefore, the rising of the detection light quantity of optical sensor becomes anxious, can reduce the detection error of optical sensor.
According to the invention of application examples 2, when the rotation position of each gear is detected, because opening is with the whole of each gear opening
Slit width is opened wide and makes detection light start to pass through quickly, therefore, the rising of the detection light quantity of optical sensor becomes anxious, can subtract
The detection error of small optical sensor.
According to the invention of application examples 3, the rising of detection light quantity when not only the detection of optical sensor starts becomes anxious, detection knot
The decline of detection light quantity during beam also becomes anxious, the detection waveform of optical sensor can be arranged and further reduce detection and miss
Difference.
Brief description of the drawings
Fig. 1 is the front view of the movement of the electric wave correcting timepiece of embodiments of the present invention.
Fig. 2 is the II-II sectional views of Fig. 1.
Fig. 3 is the front view of the drive system of the hour hands and minute hand for showing above-mentioned movement.
Fig. 4 is the front view of the drive system of the second hand for showing above-mentioned movement.
Fig. 5 is the 1st front view of the major part of the pointer position detection structure for showing present embodiment.
Fig. 6 is the 2nd front view of the major part of the pointer position detection structure for showing present embodiment.
Fig. 7 is the 1st front view of the major part of the comparative example for showing present embodiment.
Fig. 8 is the 2nd front view of the major part of the comparative example for showing present embodiment.
(a) of Fig. 9 is the change of the detection light quantity relative to the anglec of rotation of gear of the optical sensor for showing present embodiment
The curve map of change, (b) of Fig. 9 is the curve map equivalent to (a) in comparative example.
Figure 10 is the front view suitable with the Fig. 5 for the 1st variation for showing present embodiment.
Figure 11 is the front view suitable with the Fig. 5 for the 2nd variation for showing present embodiment.
Figure 12 is the block diagram for including the control circuit of above-mentioned electric wave correcting timepiece.
Label declaration
1A：Shell；5：2nd point of breast wheel (gear)；6：Second hand wheel (gear)；9：Optical sensor；31A、311A、
312A：Base plate slit (base plate opening)；35、36、351、352、362：Gear slit (gear opening)；R1、R5、R6、R11、
R12、R51、R52、R62：Line-like area；R1B、R5B、R6B、R11B、R51B、R52B、R62B：2nd line-like area；100：Electric wave
Clock (clock and watch)；110：Receiving circuit；150：Control unit.
Specific embodiment
Hereinafter, embodiments of the present invention are illustrated referring to the drawings.
Fig. 1 is the master of the movement MV of the electric wave correcting timepiece 100 (reference picture 12, hereinafter referred to as clock and watch) of present embodiment
View, Fig. 2 is the sectional view of movement MV.In addition, illustrate for convenience, in Fig. 1, upper plate not shown 10, middle plate 2 and substrate
24.In addition, in Fig. 1, eliminating the gear slit for being arranged at each gear.
Referring to Figures 1 and 2, in movement MV, axle branch is carried out to clock and watch train by lower plate 1, upper plate 10 and middle plate 2
Support.Movement MV drives hour hands and minute hand, Yi Jimiao respectively using two independent the 1st motor M1 and the 2nd motor M2
Pin.
Shell 1A including lower plate 1, upper plate 10 and middle plate 2 is in the flat with the depth direction of Fig. 1 as thickness direction,
Clock and watch train is housed in the way of making it axially along thickness direction.Shell 1A is in front elevational view in fig. 1 the rectangle grown crosswise,
Central portion is configured with the pivot of pointer, and the left and right sides longitudinally configures the 1st motor M1 and the 2nd motor respectively
M2.The lower section of the coil 22 of the 1st motor M1 in left side is configured with rotor 11 in figure, the 2nd driving electricity on right side in figure
The top of the coil 22 of machine M2 is configured with rotor 14.The configuration of each rotor 11,14 rotates in rectangular shell 1A across pointer
At the diagonal position at center, the miniaturization of movement MV can be realized.
Referring concurrently to Fig. 3, in the drive system of hour hands and minute hand, it is in U word that the 1st motor M1 has when overlooking
The stator 20 of the tabular of shape, the driving coil 22 on the leg piece of a side of stator 20 and it is disposed in stator 20
Rotor 11 between magnetic pole.Engage the 1st point of breast wheel 12, the 2nd point of breast wheel 5 and minute hand tooth successively on rotor pinion 11a
Wheel 4, and engage hour hand gear 3 via back gear 13 on minute gear 4.Installed in the front end of the minute hand pipe 4a of minute gear 4
Have minute hand (not shown), hour hand gear 3 when needle tubing 3a front end hour hands (not shown) are installed.
Referring concurrently to Fig. 4, in the drive system of second hand, the 2nd motor M2 has the plate in U-shaped when overlooking
The stator 21 of shape, the driving coil 23 on the leg piece of a side of stator 21 and between being disposed in the magnetic pole of stator 21
Rotor 14.Engaged successively on rotor pinion 14a the 1st second breast wheel 15, the 2nd second breast wheel 16, the 3rd second breast wheel 17 with
And second hand wheel 6.Second hand (not shown) is installed in the front end of the second hand supporting pin 6a of second hand wheel 6.
Reference picture 2, in second hand wheel system, according to the order of gear 14,15,16,17,6, from the thickness direction of shell 1A
A lateral opposite side uniaxially overlap.Therefore, it is possible to make the 1st gear (such as the 2nd second breast wheel 16) and the 2nd little gear flat
Overlapped on face, the 2nd little gear forms as one and coaxially relative to the 2nd gear (such as the 3rd second breast wheel 17), the 2nd tooth
Wheel is by forming as one relative to the 1st gear and the 1st coaxial little gear is slowed down.Here, if the 1st little gear with
Overlap two gears on the relative direction of 2nd little gear, then the 2nd little gear and the 1st gear may be disturbed, therefore, need
Separate the between centers of gear.On the other hand, in the present embodiment, gear can be made overlap in the plane with little gear, energy
Enough reduce the axle base of gear.
In addition, the stator 20,21 of each motor M1, M2 is configured in mutually the same height on the thickness direction of shell 1A
Degree, the diagonal position of 2 each rotors of motor M1, M2 11,14 also plays a role, so that bobbin (including reach substrate 24
Terminal) etc. shape commonization and can be configured to rotationally symmetrical and use.In the height of the stator 20,21 of each motor M1, M2
In the case of difference, the length of the terminal of the arrival substrate 24 on the thickness direction of shell 1A is different, therefore, it is impossible to be carried out to it
Commonization.On the other hand, according to present embodiment, due to can jointly be changed to the length of terminal, therefore, it is possible to make in volume
Bobbin before driving coil 22,23 is changed jointly, can reduce management cost.
Also, in the present embodiment, in the assembling of movement MV, prevented in lower plate 1 by being supported by middle plate 2
On the rotor 14 that erects fall down.For example, by making the periphery of the opening 2k of the insertion of confession rotor 14 of middle plate 2 close to rotor 14
Such as flange end is fallen down preventing the rotor 14 erected in lower plate 1.Therefore, stator and prevent to be sent out between structure
Raw interference, as the rotor 11 on right side in Fig. 2, and prevents what rotor 11 from falling down using the supporting walls 1k erected from lower plate 1
Structure is compared, and can reduce the restriction of stator profile.
In movement MV, when pointer position is modified into the moment obtained from standard wave, the initial of pointer is detected
Position, afterwards, makes pointer move at the position that show the moment obtained on the basis of the initial position.So
Pointer position amendment when, in order to detect pointer return initial position situation, movement MV have pointer position detect knot
Structure.
In pointer position detection structure, using the optical sensor 9 with light-emitting component and photo detector, detect all of
Whether pointer reaches initial position.Specifically, in pointer position detection structure, with multiple gears of each pointer synchronous rotary
Through hole in the inspection positions of optical sensor 9, overlap in the axial direction, optical sensor 9 detects this according to the transmission of detection light
Overlap, so as to detect that multiple moment display pins reach the situation of initial position.
The supporting substrate 24 between lower plate 1 and upper plate 10.It is formed with substrate 24 and the 1st motor M1 and the 2nd is driven
The control circuit 101 (reference picture 12) that the work of dynamic motor M2 is controlled.When being assembled with for detecting in controlling circuit 101
The operation program of the initial position of pin and minute hand and second hand.Receiving for optical sensor 9 is installed at the assigned position of substrate 24
Optical element 8.The light-emitting component 7 of optical sensor 9 is connected via wire (not shown) with substrate 24.
Here, reference picture 12 is illustrated to the clock and watch 100 of present embodiment.
As shown in figure 12, clock and watch 100 have control circuit 101, drive division 160, display part 170 and position detection part
180。
Control circuit 101 has receiving circuit 110, oscillating circuit 120, power circuit 130, storage part 140 and control
Portion 150.
Drive division 160 has the 1st motor M1, train 161, the 2nd motor M2 and train 162.In addition, wheel
Be 161 including the rotor 11 shown in Fig. 1, the 1st point of breast wheel 12, the 2nd point of breast wheel 5, hour hand gear 3, minute gear 4 and
Back gear 13.In addition, train 162 includes the rotor 14 shown in Fig. 1, the 1st second breast wheel 15, the 2nd second breast wheel 16, the 3rd second centre
Wheel 17 and second hand wheel 6.1st motor M1 and the 2nd motor M2 are, for example, stepper motor.
Display part 170 has hour hands 171, minute hand 172 and second hand 173.
Position detection part 180 has light-emitting component 7 and photo detector 8.
Then, the action to clock and watch 100 is illustrated.
Clock and watch 100 are, for example, radio controlled timepiece.Clock and watch 100 carry out timing, for example, etalon time electric wave is received, according to receiving
Etalon time electric wave and the rotational positional relationship of each gear detected using position detection part 180, the display to the moment
It is corrected.
Receiving circuit 110 is received on the opportunity of regulation includes the etalon time electric wave of moment code signal, from the mark for receiving
Moment code signal is extracted in quasi- time wave, the moment code signal output that will be extracted to control unit 150.
Oscillating circuit 120 generates reference signal.The frequency of reference signal is, for example, 32.768kHz.Oscillating circuit 120 will be raw
Into reference signal output to control unit 150.
Power circuit 130 includes battery, provides power to receiving circuit 110, storage part 140 and control unit 150.
When storage part 140 stores control program, the 1st stipulated time described later, 2 regulation for controlling control unit 150
Between etc..
Light-emitting component 7 is, for example, light emitting diode.Light-emitting component 7 starts luminous or ties according to the control of control unit 150
Shu Faguang.
Photo detector 8 is, for example, photodiode.Photo detector 8 receives the light that light-emitting component 7 sends, by the result of light
As detection signal output to control unit 150.
Control unit 150 is, for example, CPU (central operation device).The control journey that control unit 150 is stored according to storage part 140
Sequence, generates the driving pulse for driving the 1st motor M1, the driving pulse output that will be generated to the 1st motor M1.Control
The control program that portion processed 150 stores according to storage part 140, generates the driving pulse for driving the 2nd motor M2, will generate
Driving pulse output to the 2nd motor M2.
In addition, control unit 150 is used based on hour hand gear 3, minute gear 4 and the 2nd point of light of the combination of breast wheel 5
The detection signal that element 8 is received, carries out the detection of the rotational positional relationship of each gear in time-division train.Control unit 150
Using the detection signal of second hand wheel 6, the detection of the rotational positional relationship of each gear in second wheel system is carried out.Also, control
Portion 150 judges whether to need to carry out display part according to receiving circuit 110 the moment code signal for exporting and the position for detecting
170 time correction, in the case where being judged as needing to carry out time correction, drives the 1st motor M1 and the 2nd motor
M2, is controlled, to be corrected to the display moment.
The driving pulse that 1st motor M1 is exported according to control unit 150, rotates train 161, thus, makes hour hands 171
Taken the needle with minute hand 172.
The driving pulse that 2nd motor M2 is exported according to control unit 150, rotates train 162, thus, makes second hand 173
Taken the needle.
Display part 170 includes dial plate (not shown), and display part 170 is shown by hour hands 171, minute hand 172 and second hand 173
Moment.
Hour hands rotate 1 time for 171 every 12 hours, and 172 every 60 minutes minutes rotated 1 time, and second hand rotates 1 time for 173 every 1 minutes.
Reference picture 2, on lower plate 1, middle plate 2, hour hand gear 3, minute gear 4, the 2nd point of breast wheel 5 and second hand wheel 6
It is respectively formed with through hole 31~36.These are configured as in the inspection based on optical sensor (position-detection sensor) 9 through hole
Location puts place, on the opportunity of regulation, overlaps in the axial direction.There is optical sensor 9 light-emitting component lighted towards test position (to light
Diode) 7 and with light-emitting component 7 be oppositely disposed photo detector (photodiode) 8.
When detecting that each finger Needles returns to initial position, minute hand train is according to hour hand gear 3, minute gear 4, Yi Ji
2 points of combinations of breast wheel 5 carry out pointer position detection action, and second hand train only carries out pointer position inspection according to second hand wheel 6
Survey is acted.In the position detection train of minute hand, fastest is the 2nd point of breast wheel 5, most helpful in the detection of minute hand position
The input of signal.
In the present embodiment, in the detection of minute hand train, the 2nd point of breast wheel 5 rotates at high speed, in the detection of second hand train
In, second hand wheel 6 rotates at high speed, therefore, when there is deviation in the detection of these gears, it is impossible to accurately to carrying out constantly
Amendment.In the present embodiment, these gears are configured without on coaxial, also, by by the transmission hole 35 of each gear 5,6,
36 are set to shape described later, it is possible to increase the position of each gear 5,6 at the detection position that each gear 5,6 overlaps each other vertically
Accuracy of detection.
In movement MV, second hand wheel 6 and the 2nd point of breast wheel 5 are independently powered structures, but by employing 1
The optical sensor 9 of light-emitting component 7 and photo detector 8 is organized to detect the position of the benchmark between second hand wheel 6 and the 2nd point of breast wheel 5
Put, therefore, quantity and the wiring of optical sensor 9 are reduced, as simple structure, assembly operation is improve, realize into
This reduction.
Hereinafter, 5~Fig. 9 of reference picture is illustrated to the transmission hole 35,36 of gear 5,6 and base plate slit 31A.In addition,
Base plate is lower plate 1, middle plate 2, and base plate slit 31A is disposed on the transmission hole 31,32 of lower plate 1, the test position of middle plate 2.In addition,
The transmission hole 35,36 of gear 5,6 is referred to as gear slit 35,36.Arrow f5, f6 represent the gear 5,6 of initialization action in figure
Direction of rotation.In addition, in Figure 5, for the purpose of simplifying the description, gear slit 35,36 is shown respectively 1.
Reference picture 5, gear slit 35,36 is for example in arc-shaped (slit-shaped) along the circumferential direction, and each other across rule
Fixed interval is formed with multiple.Gear 5,6 is in light-emitting component 7 and the relative position of photo detector 8 (test position and base plate slit
31A relative position) place, when at least a portion of gear slit 35,36 overlaps each other, from light-emitting component 7 to light-emitting component 8
Through detection light.On the other hand, when at least one of the occlusion part between multiple gear slits 36,36 covers test position,
Gear 5,6 blocks the detection light.
In the example of fig. 5, base plate slit 31A starts Chong Die vertically with the gear slit 35,36 of each gear 5,6
The end of side has the line-like area R1 of the straight line L1 at the center along the gear 5,6 for linking axle different from each other.Base plate slit
Fan shapes of the 31A for example formed as the circumferencial direction along gear 6.
On the other hand, gear slit 35,36 has point in the end for vertically starting Chong Die side with base plate slit 31A
Not along line-like area R5, R6 of radial direction.
That is, as shown in fig. 6, the end for starting Chong Die side with gear slit 35,36 vertically of base plate slit 31A,
And the end for starting Chong Die side with base plate slit 31A vertically of gear slit 35,36 have vertically can be mutual
Consistent line-like area R1, R5, R6.The radial width (equivalent to slit width) of each line-like area R5, R6 is mutually the same, relatively
In these line-like areas, the radial width of base plate slit 31A is identical or slightly larger.
Thus, when the rotation position of each gear of gear 5,6 of axle different from each other and different driving is detected, either
In the case where the end of which gear slit 35,36 reaches the end of base plate slit 31A, base plate slit 31A is behind immediately
Width according to line-like area R5, R6 of these ends is opened and makes detection light start to pass through quickly, therefore, optical sensor 9
Detection light quantity steeply rise, the detection error of optical sensor 9 can be reduced.
Here, it is also possible to be configured to, base plate slit 31A vertically with the side of the Chong Die end of gear slit 35,36
The 2nd end and the 2nd end vertically with the side of the Chong Die end of base plate slit 31A of gear slit 35,36 have
The 2nd line-like area R1B, R5B, R6B that vertically can be consistent with each other.In this case, except the detection of optical sensor 9 is opened
Beyond the rising of the detection light quantity during beginning, the decline of the detection light quantity at the end of detection also becomes drastically, can be to optical sensor 9
Detection waveform arranged and further reduced detection error.
Fig. 7, Fig. 8 show the comparative example (conventional example) of present embodiment.
In this example, although base plate slit 311A is formed as the fan shape of the circumferencial direction along gear 6, but with even
Formed to the scattered mode in its both sides centered on the straight line L1 at the center for tying gear 5,6.On the other hand, gear slit 35,36 with
Foregoing is identical.
That is, as shown in figure 8, the end for starting Chong Die side with gear slit 35,36 vertically of base plate slit 311A
Line-like area R11 can be with the wire of the end for starting Chong Die side with base plate slit 31A vertically of gear slit 36
Region R6 is consistent, but with the line-like area of the end for starting Chong Die side with base plate slit 311A vertically of gear slit 35
R5 is inconsistent, also, base plate slit 311A ends line-like area R11 and the end of gear slit 35 line-like area R5 vertically
Incline towards each other intersection.This point is last with the 2nd of the side Chong Die with the end of gear slit 35,36 vertically of base plate slit 311A the
The 2nd line-like area R11B at end is identical.
Therefore, in the position detection of gear 6, the detection light quantity of optical sensor 9 steeply rises, but in the position of gear 5
In detection, rising is slowed down by making the detection light quantity of optical sensor 9 increase at leisure, for example, make light because voltage declines
When the sensitivity of sensor 9 declines, in order to reach the light quantity that optical sensor 9 can be detected, before slit needs to decline than voltage
Open greatly, the test position of the gear before declining and after decline deviates.In addition, the shape difference of part is also inclined stopping accuracy
The reason for the reason for difference is error detection.In addition, the decline of the detection light quantity at the end of detection also slows down, same class is produced
Topic.
(a) of Fig. 9 is shown in the case of the base plate slit 31A and gear slit 35,36 using present embodiment
The curve map of the relation between the anglec of rotation of each gear 5,6 and the output level of optical sensor 9, (b) of Fig. 9 is using existing
There is (a) identical curve map with Fig. 9 in the case of the base plate slit 311A and gear slit 35,36 of example.
As shown in (b) of Fig. 9, when the gear slit 36 of gear 6 starts to overlap relative to the base plate slit 311A of conventional example
Afterwards, the end of their side for starting to overlap has line-like area R11, R6 consistent with each other vertically, therefore, with Fig. 9's
A () is identical, the output level of optical sensor 9 steeply rises.On the other hand, when the gear slit 35 of gear 5 is narrow relative to base plate
After seam 311A starts to overlap, the end of their side for starting to overlap has the line-like area of the intersection that inclines towards each other vertically
R11, R5, therefore, the rising of the output level of optical sensor 9 slows down and detection error is become big.
On the other hand, as shown in (a) of Fig. 9, in the base plate slit 31A and gear slit 35,36 of present embodiment, i.e.,
The gear slit 35,36 and base plate slit 31A that make any one gear 5,6 starts Chong Die, their side for starting to overlap
End also has line-like area R1, R5, R6 consistent with each other vertically, therefore, light can in either case passed
The output level of sensor 9 similarly steeply rises.
Figure 10 shows the 1st variation of present embodiment.
In this example, with foregoing base plate slit 311A and gear slit 36.
On the other hand, the end for starting Chong Die side with base plate slit 311A vertically of gear slit 351 does not have
Along the line segment of radial direction, and there is line-like area R51, line-like area R51 is in mode consistent with line-like area R11 vertically
Incline, line-like area R11 is the area of the end for starting Chong Die side with gear slit 351 vertically of base plate slit 311A
Domain.The radial width of each line-like area R51, R6 is mutually the same, and in contrast, the radial width of base plate slit 311A is identical or slightly
Greatly.
Thus, the example with Fig. 5 is identical, when the rotation position of gear 5,6 is detected, even if in any one gear slit
351st, in the case that 36 end reaches the end of base plate slit 311A, because base plate slit 311A is last with these immediately after
The corresponding width of line-like area R51, R6 at end is opened wide and makes detection light start to pass through quickly, therefore, the detection of optical sensor 9
Light quantity steeply rises, and can reduce the detection error of optical sensor 9.
In addition, the 2nd end of the side Chong Die with the end of gear slit 351,36 vertically of base plate slit 311A and tooth
If taking turns the 2nd end for terminating Chong Die side with base plate slit 311A vertically of slit 351,36 with vertically mutual one
The 2nd line-like area R11B, R51B, the R6B for causing, the then decline of the detection light quantity at the end of the detection of optical sensor 9 also becomes anxious, energy
Enough detection waveforms to optical sensor 9 are arranged and are further reduced detection error.In addition, the 2nd line of base plate slit 311A
Shape region R11B is the line segment of the radial direction along gear 6, the 2nd line-like area R51B of gear slit 351 be with vertically with bottom
The 2nd line-like area R11B of the plate slit 311A consistent inclined line segment of mode.
Figure 11 shows the 2nd variation of present embodiment.
In this example, with the base plate slit 312A for being for example formed as circle when overlooking.Base plate slit 312A along axle
There is the line-like area R12 of circular shape to the end for starting Chong Die side with gear slit 352,362.
On the other hand, the end for starting Chong Die side with the base plate slit 312A vertically tool of gear slit 352,362
There are line-like area R52, R62 of the circular concavity and circular shape along base plate slit 312A.
That is, the end for starting Chong Die side with gear slit 352,362 vertically of base plate slit 312A and gear are narrow
The end for starting Chong Die side with base plate slit 312A vertically of seam 352,362 has wire area consistent with each other vertically
Domain R12, R52, R62.The radial width of each line-like area R52, R62 is mutually the same, in contrast, the radial direction of base plate slit 312A
Width is identical or slightly larger.
Thus, the example with Fig. 5 is identical, when the rotation position of gear 5,6 is detected, even if any one gear slit
352nd, in the case that 362 end reaches the end of base plate slit 312A, due to base plate slit 312A after immediately with these
The corresponding width of line-like area R52, R62 of end is opened wide and makes detection light start to pass through quickly, therefore, optical sensor 9
The rising of detection light quantity become anxious, the detection error of optical sensor 9 can be reduced.
In addition, the 2nd end of the side Chong Die with the end of gear slit 352,362 vertically of base plate slit 312A and tooth
If taking turns the end for terminating Chong Die side with base plate slit 312A vertically of slit 352,362 with consistent with each other vertically
The 2nd line-like area R12B, R52B, R62B, the decline of the detection light quantity at the end of the detection of optical sensor 9 also becomes anxious, can
The detection waveform of optical sensor 9 is arranged and is further reduced detection error.In addition, the 2nd wire of base plate slit 312A
Region R12B is the curve of circular shape, and the 2nd line-like area R52B, R62B of gear slit 352,362 is along base plate slit
The circular concavity and the curve of circular shape of 312A.
In addition, base plate slit 312A is circle of the center on the center line segment of gear 5,6, but if being positive round shape,
Can also be configured to deviate from the center line segment of gear 5,6.
Here, as long as the gear slit of each embodiment is with the whole slit width across the end of each gear slit
Line-like area, then make base plate slit pass through detection light with across the opening open as big as possible of whole slit width, because
This, makes the rising of detection light quantity become anxious, is in this regard preferred.However, the gear slit 352,362 such as Figure 11
The shaping for being difficult to end in the case of, it is also possible to be configured to, make the line-like area of the width narrower than whole slit width
End with base plate slit is consistent.
In addition, the invention is not restricted to above-mentioned implementation method, the object of such as position detection can also be the 2nd point of breast wheel 5,
Gear beyond second hand wheel 6.It can also be the object of the position detection of the gear of more than 3.Base plate opening and gear opening
Shape be not limited to implementation method, can be various.
Also, the structure of above-mentioned implementation method is one of the invention, it is not limited to make in electric wave correcting timepiece certainly
With, the structural element of implementation method is replaced with known structural element etc., can not depart from main scope of the invention
Carry out various changes.
Claims (4)
1. a kind of pointer position detects structure, the position detection that it carries out each gear in multiple gears using optical sensor,
The multiple gear axle different from each other and different driving, and with the position for overlapping each other vertically, the optical sensor is
In the axial direction across the public optical sensor at the position of the overlap, it is characterised in that
The base plate opening for passing through the detection light of the optical sensor is formed with the shell for supporting the multiple gear,
Gear opening is formed with the multiple gear, the gear opening can be according to the respective rotation of the multiple gear
Position and it is relative with the base plate opening in the axial direction,
The gear opening vertically with each gear in the multiple gear of the base plate opening starts Chong Die side
The end for starting Chong Die side with the base plate opening vertically of the gear opening of end and each gear has edge
Axial direction line-like area consistent with each other.
2. pointer position according to claim 1 detects structure, it is characterised in that
In the shape of slit extended on the circumferencial direction of each gear, the line-like area is for the gear opening of each gear
Formed across the whole slit width of each gear opening.
3. pointer position according to claim 1 and 2 detects structure, it is characterised in that
The 2nd end for terminating Chong Die side with each gear opening vertically of the base plate opening and each gear opening
The 2nd end for terminating Chong Die side with the base plate opening vertically has the 2nd line-like area consistent with each other vertically.
4. a kind of clock and watch, it is characterised in that the clock and watch have：
Pointer position detection structure described in any one in claims 1 to 3；
Receiving circuit, it receives the time information for representing the moment；And
Control unit, its time information received according to the receiving circuit and pointer position detection structure detection go out
The multiple gear in each gear position, to display the moment be corrected.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015250322A JP6047223B1 (en) | 2015-12-22 | 2015-12-22 | Pointer position detection structure and clock |
| JP2015-250322 | 2015-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106909063A true CN106909063A (en) | 2017-06-30 |
Family
ID=57572380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610991720.8A Withdrawn CN106909063A (en) | 2015-12-22 | 2016-11-10 | Pointer position detects structure and clock and watch |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6047223B1 (en) |
| CN (1) | CN106909063A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751952A (en) * | 2017-11-07 | 2019-05-14 | 原相科技股份有限公司 | Gear position tester, watch and its operation method |
| CN110389523A (en) * | 2018-04-23 | 2019-10-29 | 精工爱普生株式会社 | Electronic watch |
| CN110941173A (en) * | 2018-09-25 | 2020-03-31 | 精工爱普生株式会社 | Movement and electronic timepiece |
| CN111061144A (en) * | 2018-10-16 | 2020-04-24 | 精工爱普生株式会社 | Electronic timepiece, control circuit for electronic timepiece, and needle position detection method |
| CN112433465A (en) * | 2020-11-23 | 2021-03-02 | 深圳市精准时计科技有限公司 | Optical positioning control system for radio controlled clock movement |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459489B (en) * | 2017-02-17 | 2021-06-15 | 精工电子有限公司 | Mechanism module, movement, and timepiece |
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| CN109751952A (en) * | 2017-11-07 | 2019-05-14 | 原相科技股份有限公司 | Gear position tester, watch and its operation method |
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| CN110941173B (en) * | 2018-09-25 | 2022-10-28 | 精工爱普生株式会社 | Movement and electronic timepiece |
| CN111061144A (en) * | 2018-10-16 | 2020-04-24 | 精工爱普生株式会社 | Electronic timepiece, control circuit for electronic timepiece, and needle position detection method |
| CN112433465A (en) * | 2020-11-23 | 2021-03-02 | 深圳市精准时计科技有限公司 | Optical positioning control system for radio controlled clock movement |
| CN112433465B (en) * | 2020-11-23 | 2021-10-08 | 深圳市精准时计科技有限公司 | Optical positioning control system for radio controlled clock movement |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6047223B1 (en) | 2016-12-21 |
| JP2017116344A (en) | 2017-06-29 |
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