CN104049520A - Chain driving type watch time indication mechanism - Google Patents

Chain driving type watch time indication mechanism Download PDF

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Publication number
CN104049520A
CN104049520A CN201310084841.0A CN201310084841A CN104049520A CN 104049520 A CN104049520 A CN 104049520A CN 201310084841 A CN201310084841 A CN 201310084841A CN 104049520 A CN104049520 A CN 104049520A
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CN
China
Prior art keywords
wheel
sprocket wheel
chain
cantilever
sprocket
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Granted
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CN201310084841.0A
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Chinese (zh)
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CN104049520B (en
Inventor
赵国望
吕文学
孙丙霞
步秀
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Tianjin Seagull Watch Group Co Ltd
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Tianjin Seagull Watch Group Co Ltd
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Priority to CN201310084841.0A priority Critical patent/CN104049520B/en
Publication of CN104049520A publication Critical patent/CN104049520A/en
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Publication of CN104049520B publication Critical patent/CN104049520B/en
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Abstract

The invention discloses a chain driving type watch time indication mechanism. The chain driving type watch time indication mechanism comprises the following components: a minute wheel; an idle wheel shaft; an upper minute wheel; a supporting plate; an idle wheel part; a support frame; a sprocket wheel assembly respectively engaged with the idle wheel part and chains; a sprocket wheel long shaft, wherein the sprocket wheel assembly sleeves the sprocket wheel long shaft, one end of the sprocket wheel long shaft is installed in a groove formed on a base plate, and the other end of the sprocket wheel long shaft passes through cantilevers to be arranged in a groove formed on a cover sheet; the cover plate, wherein the center of the cover sheet and the minute wheel are coaxial; and sprocket wheel parts installed between the cover sheet and the base plate, and the cover sheet and the base plate are connected to form one body via position nail pipes. The disadvantages are as follows: the chain driving type watch time indication mechanism has a novel structure, exhibits a higher transmission efficiency and is suitable for low-speed high-torque rotation; and through additional adoption of a micro-adjusting mechanism for tensile forces of the chains, the chains can be effectively prevented from sagging, and as the application time of the chains increases, sagging of the chains can be changed simply through adjustment of the tensile forces among the chains by use of the micro-adjusting mechanism, and replacement of parts is unnecessary, such that the transmission reliability and stability of the chains are guaranteed.

Description

A kind of chain transmission type wrist-watch time indication mechanism
Technical field
The present invention relates to a kind of time indication mechanism of wrist-watch, particularly relate to a kind of chain transmission type wrist-watch time indication mechanism regulating with tensile force.
Background technology
The major function of mechanical watch is the time of reading, in most mechanical watch movement structures, the persond eixis part of wrist-watch is mainly three pins and two coaxial needles or out-of-alignment indicating mode, the design feature of general persond eixis is that minute hand is fixed on minute wheel, hour hands are fixed in hour wheel, time, minute hand rotates with coaxial or out-of-alignment circular trace.But in order to meet the requirement that wrist-watch fan is more and more higher to movement, under the impelling of the psychological needs of being simultaneously also on the lookout for what is novel along with development and the people of wrist-watch, the persond eixis mode of wrist-watch is varied, makes wrist-watch seem more novel, has increased sight and the artistry of wrist-watch.
In diversified time indication mechanism, chain drive indicating mechanism is one wherein, as, China Patent No. is the patent of ZL 200720056429.8, this structure is to drive bar displaying time with chain part, and wherein, head sprocket is driven by motor, drive chain with constant speed shuttling movement, coordinate traditional hour hands and minute hand instruction time.But there is following defect in the chain drive of this structure, chain installation site is limited to, can only be head sprocket and be perpendicular straight arranged timing topology from sprocket wheel, if chain structure is designed to laterally arrange or when angle is arranged, or change the overall placement location of this structure, as become slant setting or laterally place, the moving line of its bar can change along with the generation of the sagging in chain drive so, therefore, the applicable territory of this structure is very narrow, is only applicable to clock time indicating mechanism.In addition, chain drive structure exist a transport characteristics, in transmission due to Action of Gravity Field, chain has sagging, and along with the increase chain of service time is sagging more serious, therefore, chain drive time indication mechanism does not use always in mechanical watch.
Summary of the invention
Technical matters to be solved by this invention is: overcome the deficiencies in the prior art, a kind of chain transmission type wrist-watch time indication mechanism regulating with tensile force is provided.
The technical solution adopted in the present invention is: a kind of chain transmission type wrist-watch time indication mechanism, comprise, minute wheel, axle of carrier pulley, is pressed together on the upper minute wheel on minute wheel, suspends axle of carrier pulley in midair fixing supporting plate by cantilever screw, cantilever is installed on supporting plate, be sleeved on the idle wheel parts on axle of carrier pulley, support the bracing frame of supporting plate, on the fixing base plate of bracing frame; The chain wheel assembly engaging with idle wheel parts and chain respectively, is set with the sprocket wheel major axis of chain wheel assembly, and one end of described sprocket wheel major axis is arranged in the groove forming on base plate, and the other end of sprocket wheel major axis is placed in the groove forming on cover plate through cantilever; The center of cover plate is coaxial with minute wheel, between cover plate and base plate, sprocket assembly is installed, and cover plate and base plate connect as one by tapped foot.
Described chain wheel assembly comprises that sprocket wheel major axis cover and riveted overlap sprocket wheel wheel sheet and the sprocket wheel at two ends at sprocket wheel major axis; Described idle wheel parts comprise idle wheel axle sleeve and are sleeved on large idle wheel and the little idle wheel that axle of carrier pulley puts; Described sprocket wheel engages with chain and support chains, is installed with hour hands on chain, and described sprocket wheel wheel sheet engages with little idle wheel, and described upper minute wheel engages with large idle wheel.
Support frame as described above comprises back up pad and the stay pipe that pressing is integrated, and stay pipe is coaxial with minute wheel, and described supporting plate is sleeved on stay pipe, and the upper surface tight and back up pad, lower surface of supporting plate fits tightly by supporting plate screw; Described cantilever is connected by cantilever screw with supporting plate, the connection corresponding to sprocket wheel of described cantilever, and the number of described cantilever and sprocket wheel is identical.
Described sprocket assembly comprises sprocket wheel, sprocket wheel minor axis and sprocket wheel short sleeve; One end of described sprocket wheel minor axis is contained in respectively in the elliptical slot on base plate, and sprocket wheel minor axis can slide respectively in elliptical slot; The other end of described sprocket wheel minor axis is placed in the elliptical slot on cover plate through the working hole of cantilever respectively, and sprocket wheel minor axis can slide respectively in elliptical slot.
The groove that described base plate and cover plate form is elliptical slot, and one end of described sprocket wheel major axis is contained in the elliptical slot on base plate, can slide in one end of sprocket wheel major axis in elliptical slot; The other end of sprocket wheel major axis is placed in the elliptical slot on cover plate through the working hole of cantilever, and the other end of sprocket wheel major axis can slide in elliptical slot.
Chain transmission type wrist-watch time indication mechanism also includes micro-adjusting mechanism, micro-adjusting mechanism comprises eccentric nail, described eccentric nail is arranged on the indent of supporting plate, the bottom of eccentric nail is pressed on base plate, described eccentric nail can turn but can not freely rotate, rotating eccentricity nail makes supporting plate counterclockwise or turns clockwise, and is with the idle wheel parts and four cantilever-rotatings that are automatically connected on supporting plate, is connected and is equidistant four-bar linkage structure do synchronized circular motion with cantilever; The sprocket wheel being connected with cantilever do under the restriction of the elliptical slot on base plate and cover plate respectively near or away from the synchronized rectilinear motion in minute wheel axle center, the centre distance of sprocket wheel and minute wheel is increased or shortening.
The invention has the beneficial effects as follows: not only novel structure of chain drive time indication mechanism, have more transmission efficiency high, be particularly suitable for low-speed big and rotate; Again owing to having added the micro-adjusting mechanism of chain tension, can effectively prevent chain sagging, along with the increase of service time, the tensile force that only need adjust between chain by micro-adjusting mechanism just can change the sagging phenomenon of chain, and without renewal part, ensure the reliability and stability of chain drive.
brief description of the drawings:
Fig. 1 is the axial schematic diagram of chain transmission type time indication mechanism of the present invention.
Fig. 2 is the floor map of chain transmission type time indication mechanism of the present invention.
Fig. 3 is the floor map of base plate part in chain transmission type time indication mechanism of the present invention.
Fig. 4 is the gear drive floor map of micromatic setting in chain transmission type time indication mechanism of the present invention.
Fig. 5 is that the part of micromatic setting in chain transmission type time indication mechanism of the present invention connects floor map.
Fig. 6 is the axial schematic diagram of chain transmission type time indication mechanism middle sprocket parts of the present invention.
Fig. 7 is the planimetric map when adjusting micromatic setting in chain transmission type time indication mechanism of the present invention and making chain be relaxation state;
Fig. 8 is the planimetric map when adjusting micromatic setting in chain transmission type time indication mechanism of the present invention and making chain be tensioned state.
In figure:
1. the little idle wheel 5. idle wheel axle sleeves of the large idle wheel 4. of minute wheel 3. on minute wheel 2.
6. axle of carrier pulley 7. sprocket wheel wheel sheet 8. sprocket wheel 9. sprocket wheel major axis overlap 10. sprocket wheel major axis
11. cantilever 12. stay pipe 13. back up pad 14. supporting plate 15. eccentric nails
16. supporting plate screw 17. chain 18. hour hands 19. bearing pin 20. idle wheel parts
21. chain wheel assembly 22. base plate 23. bracing frame 24. cantilever screw 25. back up pad screws
26. cover plate 27. sprocket assembly 28. support nail 29. tapped foots.
embodiment:
Below, with embodiment, a kind of chain transmission type wrist-watch of the present invention time indication mechanism is described in further details by reference to the accompanying drawings:
Now describe as an example of 4 cantilevers example, as shown in Figures 1 to 5, a kind of chain transmission type wrist-watch of the present invention time indication mechanism, comprise: minute wheel 1, upper minute wheel 2, large idle wheel 3, little idle wheel 4, idle wheel axle sleeve 5, axle of carrier pulley 6, sprocket wheel wheel sheet 7, sprocket wheel 8, sprocket wheel major axis cover 9, sprocket shaft 10, cantilever 11, stay pipe 12, back up pad 13, supporting plate 14, eccentric nail 15, supporting plate screw 16, chain 17, hour hands 18, bearing pin 19, idle wheel parts 20, sprocket assembly 21, base plate 22, bracing frame 23, cantilever screw 24, back up pad screw 25, cover plate 26, sprocket assembly 27, support nail 28, tapped foot 29, described upper minute wheel 2 is pressed together on minute wheel 1, along with minute wheel 1 clockwise rotates together, described upper minute wheel 2 engages with large idle wheel 3, drives large idle wheel 3 to rotate counterclockwise, described large idle wheel 3 is enclosed within on idle wheel axle sleeve 5 together with little idle wheel 4, and riveted becomes idle wheel parts 20, described idle wheel parts 20 are enclosed within on axle of carrier pulley 6, freely rotate taking axle of carrier pulley 6 as axle, described axle of carrier pulley 6 is the threaded tubular members of interstitial hole, is suspention form is fixed on supporting plate 14 by cantilever screw 24, can drive idle wheel parts 20 along with supporting plate 14 rotates together, described supporting plate 14 is enclosed within on stay pipe 12, freely rotates taking stay pipe 12 as axle, the lower surface of described supporting plate 14 contacts with the upper surface of back up pad 13, fits tightly by locking and the back up pad 13 of supporting plate screw 16, described back up pad 13 is bracing frame 23 with stay pipe 12 pressings, and wherein stay pipe 12 is coaxial with minute wheel 1, and bracing frame 23 is fixed on base plate by screw and position nail, described sprocket wheel wheel sheet 7 engages with little idle wheel 4, under the drive of little idle wheel 4, clockwise rotates, described sprocket wheel wheel sheet 7 is overlapped 9 two ends, composition chain wheel assembly 21 at sprocket wheel major axis by riveted with sprocket wheel 8, described chain wheel assembly 21 is enclosed within on sprocket wheel major axis 10, rotates freely taking sprocket wheel major axis 10 as axle, one end of described sprocket wheel major axis 10 is contained in the elliptical slot 22a on base plate 22, can in elliptical slot 22a, slide, the other end of sprocket wheel major axis 10 is placed in the elliptical slot 26a on cover plate 26 through the working hole 11e of cantilever 11, can in elliptical slot 26a, slide, four cantilevers 11 are by pilot hole 11a separately, 11b, 11c and 11d are separately fixed at four hole stake 14a of supporting plate 14 by four cantilever screws 24, 14b, on 14c and 14d, four cantilevers 11 can be respectively with hole stake 14a, 14b, 14c and 14d are that axle freely rotates, the other end 11e of one of them cantilever 11 is enclosed within on chain wheel assembly 21, the other end 11f of its excess-three cantilever 11, 11g and 11h are enclosed within respectively on three identical sprocket assemblies 27, four cantilevers 11 can rotate along with the rotation of supporting plate 14 simultaneously, and can slide with being automatically connected in four sprocket wheels 8 on it elliptical slot on base plate 22 and cover plate 26, described cover plate 26 center is coaxial with minute wheel 1, is enclosed within on two tapped foots 29 through two pilot holes, is fixed by screw, and lower end contacts with four support nails 28 that are pressed together on base plate 22,
As shown in Figure 6, described sprocket assembly 27 comprises sprocket wheel 8, sprocket wheel minor axis 27a and sprocket wheel short sleeve 27b, and sprocket assembly 27 has three; One end of described sprocket wheel minor axis 27a is contained in respectively in elliptical slot 22b, the 22c and 22d on base plate 22, can in elliptical slot 22b, 22c and 22d, slide respectively; The other end of described sprocket wheel minor axis 27a is placed in elliptical slot 26b, 26c and the 26d on cover plate 26 through working hole 11b2,11c2 and the 11d2 of cantilever 11 respectively, can in elliptical slot 26b, 26c and 26d, slide respectively.It should be noted that, in the time having multiple cantilever, few one than cantilever number of the number of sprocket assembly, can meet the transmission requirement of sprocket wheel.
As shown in Figure 7, described sprocket wheel 8 engages with chain 17, drives chain 17 to clockwise rotate, described hour hands 18 are fixed on chain 17 by bearing pin 19, along with chain 17 clockwise rotates, thereby realize the object of instruction time, the indent that described eccentric nail 15 is placed in supporting plate 14 is pressed on base plate, can turn but can not freely rotate with screwdriver, following closely 15 by rotating eccentricity turns clockwise supporting plate 14, idle wheel parts 20 and four cantilevers 11 that when supporting plate 14 rotates, band is automatically connected on supporting plate 14 turn clockwise, four are connected to four cantilevers 11 on supporting plate 14 by cantilever screw 24 respectively and are equidistant four-bar linkage structure and do synchronized circular motion, on four cantilevers 11, connecting respectively four sprocket wheels 8, four are played the sprocket wheel 8 that support chains 17 acts on and also under the restriction of the elliptical slot on base plate 22 and cover plate 26, do the synchronized rectilinear motion near minute wheel 1 axle center respectively, sprocket wheel 8 and the centre distance of minute wheel 1 are shortened, thereby the tensile force of 17, chain is reduced, reach the object that chain is loosened.
As shown in Figure 8, following closely 15 by rotating eccentricity is rotated counterclockwise supporting plate 14, idle wheel parts 20 and four cantilevers 11 that when supporting plate 14 rotates, band is automatically connected on supporting plate 14 are rotated counterclockwise, four are connected to four cantilevers 11 on supporting plate 14 by cantilever screw 24 respectively and are equidistant four-bar linkage structure and do synchronized circular-rotation, on four cantilevers 11, connecting respectively four sprocket wheels 8, four are played the sprocket wheel 8 that support chains 17 acts on and also under the restriction of the elliptical slot on base plate 22 and cover plate 26, do the synchronized rectilinear motion away from minute wheel 1 axle center respectively, sprocket wheel 8 and the centre distance of minute wheel 1 are increased, thereby the tensile force of 17, chain is increased, reach the object that makes chain tightens, described supporting plate screw 16 contacts with the workplace 14b of supporting plate 14, is tightened on base plate, in the time that the tightness between adjusting chain is proper states, makes supporting plate 14 fixing, thereby completed fine setting link of the present invention by tightening supporting plate screw 16.
The present invention also can change by increasing or reduce the form of cantilever and sprocket wheel the transmission track of chain, as: increase by two cantilevers and two sprocket wheels become hexagonal transmission track, its principle is identical with the principle of above-mentioned explanation, then this repeats no more.
It is worthy of note; protection scope of the present invention is not limited to above-mentioned embodiment; according to basic fundamental design of the present invention; also can essentially identical structure driven; the profile or the fixed form that change parts realize object of the present invention; as long as those skilled in the art need pass through creative work, the embodiment that can associate, all belongs to protection scope of the present invention.

Claims (6)

1. a chain transmission type wrist-watch time indication mechanism, it is characterized in that, comprise minute wheel (1), axle of carrier pulley (6), be pressed together on the upper minute wheel (2) on minute wheel (1), suspend axle of carrier pulley (6) in midair fixing supporting plate (14) by cantilever screw (24), cantilever (11) is installed on supporting plate (14), be sleeved on the idle wheel parts (20) on axle of carrier pulley (6), the bracing frame (23) that supports supporting plate (14), bracing frame (23) is fixed on base plate (22); The chain wheel assembly (21) engaging with idle wheel parts (20) and chain (17) respectively, be set with the sprocket wheel major axis (10) of chain wheel assembly (21), one end of described sprocket wheel major axis (10) is arranged in the groove forming on base plate (22), and the other end of sprocket wheel major axis (10) is placed in the groove forming on cover plate (26) through cantilever (11); The center of cover plate (26) is coaxial with minute wheel (1), between cover plate (26) and base plate (22), sprocket assembly (27) is installed, and cover plate (26) and base plate (22) connect as one by tapped foot (29).
2. chain transmission type wrist-watch time indication mechanism according to claim 1, is characterized in that, described chain wheel assembly (21) comprises sprocket wheel major axis cover (9) and riveted sprocket wheel wheel sheet (7) and the sprocket wheel (8) at sprocket wheel major axis cover (9) two ends; Described idle wheel parts (20) comprise idle wheel axle sleeve (5) and are sleeved on large idle wheel (3) and the little idle wheel (4) on idle wheel axle sleeve (5); Described sprocket wheel (8) engages with chain (17) and support chains (17), is installed with hour hands (18) on chain (17), and described sprocket wheel wheel sheet (7) engages with little idle wheel (4), and described upper minute wheel (2) engages with large idle wheel (3).
3. chain transmission type wrist-watch time indication mechanism according to claim 1, it is characterized in that, support frame as described above (23) comprises back up pad (13) and the stay pipe (12) that pressing is integrated, stay pipe (12) is coaxial with minute wheel (1), it is upper that described supporting plate (14) is sleeved on stay pipe (12), and the upper surface tight and back up pad (13), lower surface of supporting plate (14) fits tightly by supporting plate screw (16); Described cantilever (11) is connected by cantilever screw (24) with supporting plate (14), described cantilever (11) connection corresponding to sprocket wheel (8), and described cantilever (11) is identical with the number of sprocket wheel (8).
4. chain transmission type wrist-watch time indication mechanism according to claim 1, is characterized in that, described sprocket assembly (27) comprises sprocket wheel (8), sprocket wheel minor axis (27a) and sprocket wheel short sleeve (27b); One end of described sprocket wheel minor axis (27a) is contained in respectively in the elliptical slot on base plate (22), and sprocket wheel minor axis (27a) can slide respectively in elliptical slot; The other end of described sprocket wheel minor axis (27a) is placed in the elliptical slot on cover plate (26) through the working hole of cantilever (11) respectively, and sprocket wheel minor axis (27a) can slide respectively in elliptical slot.
5. chain transmission type wrist-watch time indication mechanism according to claim 1, it is characterized in that, the groove that described base plate (22) and cover plate (26) form is elliptical slot, one end of described sprocket wheel major axis (10) is contained in the elliptical slot on base plate (22), can slide in one end of sprocket wheel major axis (10) in elliptical slot; The other end of sprocket wheel major axis (10) is placed in the elliptical slot on cover plate (26) through the working hole of cantilever (11), and the other end of sprocket wheel major axis (10) can slide in elliptical slot.
6. chain transmission type wrist-watch time indication mechanism according to claim 1, it is characterized in that, also include micro-adjusting mechanism, micro-adjusting mechanism comprises eccentric nail (15), described eccentric nail (15) is arranged on the indent of supporting plate (14), the bottom of eccentric nail (15) is pressed on base plate (22), described eccentric nail (15) can turn but can not freely rotate, rotating eccentricity nail (15) makes supporting plate (14) counterclockwise or turns clockwise, and band is automatically connected in idle wheel parts (20) and four cantilevers (11) rotation on supporting plate (14), be connected with cantilever (11) and be equidistant four-bar linkage structure and do synchronized circular motion, the sprocket wheel (8) being connected with cantilever (11) do under the restriction of the elliptical slot on base plate (22) and cover plate (26) respectively near or away from the synchronized rectilinear motion in minute wheel (1) axle center, make sprocket wheel (8) and the centre distance of minute wheel (1) increase or shorten.
CN201310084841.0A 2013-03-15 2013-03-15 A kind of chain transmission type wrist-watch time indication mechanism Active CN104049520B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105334716A (en) * 2015-12-01 2016-02-17 龙召刚 Direct moving horizontal clock
CN107490949A (en) * 2017-09-08 2017-12-19 深圳市飞亚达精密计时制造有限公司 A kind of time displaying structure and the wrist-watch using the structure
EP3637198A1 (en) * 2018-10-10 2020-04-15 Blancpain SA Mechanical digital display for a timepiece

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CN2372704Y (en) * 1999-06-24 2000-04-05 铁兵 Time hand running gear mechanism for clocks and watches
US20030199347A1 (en) * 2002-04-23 2003-10-23 Hillis W. Daniel Differential drive system
CN2669229Y (en) * 2003-12-18 2005-01-05 褚斌江 Solar watch
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US20080225646A1 (en) * 2007-03-13 2008-09-18 Montres Breguet S.A. Timepiece including a power reserve indicator device
CH703958A1 (en) * 2010-10-20 2012-04-30 Daryoush Shafa Clock movement, has base mechanism rotating first toothed wheel through second toothed wheel and distribution unit, and rotating third toothed wheel through second toothed wheel and another distribution unit
CN203133482U (en) * 2013-03-15 2013-08-14 天津海鸥表业集团有限公司 Chain drive type watch time indication mechanism

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Publication number Priority date Publication date Assignee Title
US5299178A (en) * 1993-08-06 1994-03-29 Jaroslav Belik Clock
CN2372704Y (en) * 1999-06-24 2000-04-05 铁兵 Time hand running gear mechanism for clocks and watches
US20030199347A1 (en) * 2002-04-23 2003-10-23 Hillis W. Daniel Differential drive system
CN2669229Y (en) * 2003-12-18 2005-01-05 褚斌江 Solar watch
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CH703958A1 (en) * 2010-10-20 2012-04-30 Daryoush Shafa Clock movement, has base mechanism rotating first toothed wheel through second toothed wheel and distribution unit, and rotating third toothed wheel through second toothed wheel and another distribution unit
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105334716A (en) * 2015-12-01 2016-02-17 龙召刚 Direct moving horizontal clock
CN105334716B (en) * 2015-12-01 2017-07-21 龙召刚 One kind straight trip horizontal type clock and watch
CN107490949A (en) * 2017-09-08 2017-12-19 深圳市飞亚达精密计时制造有限公司 A kind of time displaying structure and the wrist-watch using the structure
EP3637198A1 (en) * 2018-10-10 2020-04-15 Blancpain SA Mechanical digital display for a timepiece
EP3637199A1 (en) 2018-10-10 2020-04-15 Blancpain SA Mechanical digital display for a timepiece
CN111025877A (en) * 2018-10-10 2020-04-17 布朗潘有限公司 Mechanical digital display for a timepiece
CN111025877B (en) * 2018-10-10 2021-07-30 布朗潘有限公司 Mechanical digital display for a timepiece
US11366429B2 (en) 2018-10-10 2022-06-21 Blancpain Sa Mechanical digital display for timepieces

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