CN103412471B - Three-axis tourbillon mechanism of mechanical watch - Google Patents
Three-axis tourbillon mechanism of mechanical watch Download PDFInfo
- Publication number
- CN103412471B CN103412471B CN201310351044.4A CN201310351044A CN103412471B CN 103412471 B CN103412471 B CN 103412471B CN 201310351044 A CN201310351044 A CN 201310351044A CN 103412471 B CN103412471 B CN 103412471B
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- axle
- cylindrical roller
- top flywheel
- gear
- fixed
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- 230000007246 mechanism Effects 0.000 title claims abstract description 39
- 239000010437 gem Substances 0.000 claims description 3
- 229910001751 gemstone Inorganic materials 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000005570 vertical transmission Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/20—Compensation of mechanisms for stabilising frequency
- G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
- G04B17/285—Tourbillons or carrousels
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Retarders (AREA)
- Electromechanical Clocks (AREA)
- Rolling Contact Bearings (AREA)
- Friction Gearing (AREA)
Abstract
The invention discloses a three-axis tourbillon mechanism of a mechanical watch; comprises a tourbillon fixed on a driving wheel, an outer shaft frame and a differential mechanism; the driving wheel is meshed with the power input wheel, and the rotating axis of the tourbillon is vertical to the rotating axis of the outer shaft frame; the intermediate wheel is meshed with a second gear shaft fixed on the inner shaft tourbillon; the differential mechanism includes a third axis planetary mechanism of a lower support type. The beneficial effects are that: because the lower supporting type planetary mechanism is adopted as the third rotating shaft, the overall structure has strong manufacturability, and particularly, the cylindrical roller bearing is simple to process, has low part processing cost and is suitable for batch industrial production; the movement track of triaxial top flywheel is followed the column and upgraded to globular, and inside speed adjusting mechanism is three-dimensional multi-angle motion, and the movement track is more complicated, and the effect of offsetting earth's gravitation is more obvious, and the mechanical table is more accurate when walking.
Description
Technical field
The present invention relates to the top flywheel mechanism of a kind of mechanical watch, particularly relate to three axle top flywheel mechanisms of a kind of mechanical watch.
Background technology
Speed adjusting gear most crucial for stem-winder is rotated by being structurally characterized in that of top flywheel under the drive of top flywheel framework, to offset the impact of gravity, patent publication No. CN102809919A discloses a kind of twin shaft top flywheel, the shaft center line of its shaft center line and outer shaft framework that are structurally characterized in that interior axle framework is vertically arranged, the shaft center line of outside framework is perpendicular to the axial line with movement, carry the interior axle top flywheel of speed adjusting gear under the drive of outer shaft framework, not only with the revolution of outer shaft axial line but also within axle axial line rotation, the movement locus making escapement and balance and hair spring system becomes complicated.Its movement locus becomes more complicated compared with single shaft top flywheel, and maximum advantage is in that the movement locus of speed adjusting gear is more complicated, and offsetting gravitational ability will be more obvious, and the timekeeping performance that final result is multiaxis top flywheel stem-winder can be elevated.But the movement locus of above-mentioned twin shaft top flywheel is similar to column stereo-motion, the movement locus of speed adjusting gear can only in limited solid space conversion.
In order to offset the gravity impact coming from the earth better, have been developed that a kind of three axle top flywheels at present, it is to add the 3rd rotating shaft on twin shaft top flywheel structure basis, the effect brought is the movement locus subglobular of top flywheel, make the speed adjusting gear within top flywheel can move to arbitrary direction, promote with this and overcome gravitational ability.But, there is following defect in the structure of existing three axle top flywheels: first, and the 3rd axle adopts upper and lower support pattern, and this kind of structure can take more axial space so that the thickness of table increases a lot, for very inconvenient wearer；Secondly, the 3rd axle adopts ball bearing lower support mode.The special ball bearing size used in wrist-watch is little, and thin, and not plain ball bearing reduces achieved function；Ball bearing in top flywheel mechanism to carry running up of top flywheel, and therefore the abrasion of ball bearing is the previous defect that cannot overcome of order, and some manufacture difficulty of high precision ball bearing being highly resistant to abrasion and price are very high.
Summary of the invention
The technical problem to be solved is to provide a kind of simple in construction, good manufacturability, it is simple to three axle top flywheels of processing.
The technical solution adopted in the present invention is: three axle top flywheel mechanisms of a kind of mechanical watch；Including, fix top flywheel on the drive wheel, outer shaft framework and differential attachment；Described driving wheel engages with power input wheel, and the shaft center line of described top flywheel is vertical with the shaft center line of outer shaft framework；Idle wheel engages with the second pinion being fixed on interior axle top flywheel；Described differential attachment includes the 3rd axle planetary mechanism of lower support mode.
Described differential attachment includes: support, planetary gear, support shaft, planetary mechanism, clamping plate and the second clamping plate post；Described planetary gear and support shaft riveted are integrated, and described support shaft is arranged on the jewel bearing of support, and described planetary gear engages with planetary mechanism, and described clamping plate are fixed on clamping plate by the second clamping plate post.
Described planetary mechanism includes, the first clamping plate post, bearing bracket stand, cylindrical roller axle, cylindrical roller, internal ring and sun gear；Described planetary gear engages with sun gear, and gear ratio is 1:5-15, and described driving wheel is fixed as one by the first clamping plate post and bearing bracket stand；Cylindrical roller is uniformly arranged on cylindrical roller axle, and cylindrical roller axle and bearing bracket stand are fixed as one, and described cylindrical roller can rotate freely；Described sun gear and internal ring concentric are fixed as one, the bottom of described cylindrical roller contacts with the outer rim step of internal ring with outer rim, the upper end of cylindrical roller coordinates with the inner edge step clearance of sun gear, and described bearing bracket stand can flexible rotating for axle with the axial line of internal ring；Described internal ring is fixed by screws on clamping plate；Top flywheel and outer shaft framework rotate with the axial line of sun gear for axle.
Described planetary gear and sun gear are angular wheel；Described planetary gear revolves round the sun around sun gear, and meanwhile, described planetary gear is with the axial line rotation of outer shaft framework.
Described planetary gear is spur gear, and described sun gear is crown tooth；Described planetary gear revolves round the sun around sun gear, and meanwhile, described planetary gear is with the axial line rotation of outer shaft framework.
Described cylindrical roller is three, five, seven or nine；Cylindrical roller axle and bearing bracket stand are integrated by screw or the two direct pressing.
The invention has the beneficial effects as follows: owing to the planetary mechanism of employing lower support mode is as the 3rd rotating shaft, therefore population structure manufacturability is strong, and particularly cylinder roller bearing processing is simple, and part processing cost is low, is suitable for bulk industrial production；The movement locus of three axle top flywheels upgrades to spherical from column, and internal speed adjusting gear is the motion of three-dimensional multi-angle, and movement locus is more complicated, offsets gravitational effect and becomes apparent from, more accurate when stem-winder is walked.
Accompanying drawing explanation
Fig. 1 is the axial schematic diagram of the present invention three axle top flywheel embodiment 1；
Fig. 2 is the floor map of the present invention three axle top flywheel embodiment 1；
Fig. 3 is the schematic perspective view of planetary mechanism embodiment 1 of the present invention；
Fig. 4 is the perspective exploded view of planetary mechanism embodiment 1 of the present invention；
Fig. 5 is the axial schematic diagram of the present invention three axle top flywheel embodiment 2.
In figure:
1: driving wheel 2: support 3: planetary gear 4: support shaft 5: the first clamping plate post
6: bearing bracket stand 7: cylindrical roller axle 8: cylindrical roller 9: internal ring 10: clamping plate
11: the second clamping plate posts 12: sun gear 13: outer shaft framework 14: interior axle top flywheel 15: power input wheel
16: idle wheel 17: second pinion.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As shown in Figure 1, three axle top flywheel mechanisms of mechanical watch of the present invention are to be CN102809919A at publication number, denomination of invention is the recreation on the basis of " the twin shaft top flywheel mechanism of mechanical watch ", and the concrete structure about twin shaft top flywheel mechanism repeats no more herein.
Embodiment 1: three axle top flywheel mechanisms of mechanical watch of the present invention, including, it is fixed on the top flywheel 14 on driving wheel 1, outer shaft framework 13 and differential attachment；Described driving wheel 1 engages with power input wheel 15, and the shaft center line of described top flywheel 14 is vertical with the shaft center line of outer shaft framework 13, and top flywheel 14 rotates one week for every 1 minute, and outer shaft framework 13 rotates one week for every 2.5 minutes；Idle wheel 16 engages with the second pinion 17 being fixed on interior axle top flywheel 14；Described differential attachment includes the 3rd axle planetary mechanism of lower support mode.
Described differential attachment includes: support 2, planetary gear 3, support shaft 4, planetary mechanism, clamping plate 10 and the second clamping plate post 11；Described planetary gear 3 is integrated with support shaft 4 riveted, and planetary gear 3 is angular wheel；Described support shaft 4 is arranged on the jewel bearing of support 2, and described planetary gear 3 engages with planetary mechanism, and described clamping plate 10 are fixed on clamping plate by the second clamping plate post 11.
Described planetary mechanism is that lower support mode includes, the first clamping plate post 5, cylindrical roller frame parts, internal ring 9 and sun gear 12；Cylindrical roller frame parts include bearing bracket stand 6, cylindrical roller axle 7, cylindrical roller 8；Sun gear 12 is angular wheel, and described planetary gear 3 engages with sun gear 12, and gear ratio is 1:3.6, and this value represents that the rotary speed of the 3rd axle is rotate one week for every 9 minutes, and this value can selection range be between 5-15；Described driving wheel 1 is fixed as one with bearing bracket stand 6 by the first clamping plate post 5；Cylindrical roller 8 is uniformly arranged on cylindrical roller axle 7, cylindrical roller axle 7 and bearing bracket stand 6 are fixed as one, described cylindrical roller 8 can rotate freely, and the number of cylindrical roller 8 can determine according to the practical situation of design, but to be ensured of odd number, as, generally can arrange 3,5,7,9, the embodiment of the present invention adopts 5 cylindrical rollers；Described sun gear 12 is fixed as one with internal ring 9 concentric, the bottom of described cylindrical roller 8 contacts with the outer rim step of internal ring 9 with outer rim, the upper end of cylindrical roller 8 coordinates with the inner edge step clearance of sun gear 12, it should be noted that the bearing bracket stand 6 being fixed with 5 cylindrical rollers 8 can flexible rotating for axle with the axial line of internal ring 9；Described internal ring 9 is fixed by screws on clamping plate 10；Top flywheel 14 and outer shaft framework 13 rotate with the axial line of sun gear 12 for axle.
Embodiment 2: planetary gear 3 is spur gear, sun gear 12 is crown tooth, and both intermesh and form vertical-transmission relation；Cylindrical roller axle 7 and bearing bracket stand 6 pressing are integrated.Other structures are all identical with embodiment 1, do not repeat them here.
The work process of three axle top flywheel mechanism embodiments 1 of mechanical watch of the present invention illustrates as follows:
Power input wheel 15 drives driving wheel 1 to rotate.Owing to driving wheel 1 and bearing bracket stand 6 interfix, and cylindrical roller frame parts, internal ring 9 and sun gear 12 constitute cylinder roller bearing, are arranged on the outer shaft framework 13 on driving wheel 1 and interior axle top flywheel 14 and rotate for axle with the axial line of sun gear 12.Owing to planetary gear 3 and sun gear 12 are meshing relations, planetary gear 3 revolves round the sun around sun gear 12, simultaneously with the axial line rotation of outer shaft framework 13.The work process of twin shaft top flywheel can referring to patent No. CN102809919A " the twin shaft top flywheel mechanism of mechanical watch ".In under the driving of the 3rd axle, axle top flywheel 14 rotates one week for every 1 minute, outer shaft framework 13 rotates one week for every 2.5 minutes, it can be between 2-10 minute that outer shaft framework 13 often rotates one week time used, the rotary speed of the 3rd axle is rotate one week for every 9 minutes, and this value can selection range be between 5-15.
The work process of three axle top flywheel mechanism embodiments 2 of mechanical watch of the present invention illustrates as follows:
Power input wheel 15 drives driving wheel 1 to rotate.Owing to driving wheel 1 and bearing bracket stand 6 interfix, and cylindrical roller frame parts, internal ring 9 and sun gear 12 constitute cylinder roller bearing, are arranged on interior axle top flywheel 14 rotation on driving wheel 1, revolve round the sun with the axial line of sun gear 12 for axle simultaneously.
Due to the fact that the structure of the 3rd axle is lower support mode, therefore, while improving timekeeping performance, also do not increase wrist-watch thickness, still keep the small and exquisite of wrist-watch, attractive in appearance；It addition, the 3rd axle population structure manufacturability is strong, particularly cylinder roller bearing processing is simple, and part processing cost is low, is suitable for bulk industrial and produces；The movement locus of three axle top flywheels upgrades to spherical from column, and internal speed adjusting gear is the motion of three-dimensional multi-angle, and movement locus is more complicated, offsets gravitational effect and becomes apparent from, more accurate when stem-winder is walked.
It is worthy of note; what the present embodiment adopted is coaxial-type top flywheel; and protection scope of the present invention is not limited to above-mentioned detailed description of the invention; basic fundamental according to the present invention is conceived; essentially identical configuration transmission can also be adopted, and select centering type top flywheel still can realize the purpose of the present invention, as long as those of ordinary skill in the art need not through creative work; the embodiment that can associate, belongs to protection scope of the present invention.
Claims (5)
1. three axle top flywheel mechanisms of a mechanical watch；Including, it is fixed on the top flywheel (14) on driving wheel (1), outer shaft framework (13) and differential attachment；Described driving wheel (1) engages with power input wheel (15), and the shaft center line of described top flywheel (14) is vertical with the shaft center line of outer shaft framework (13)；Idle wheel (16) engages with the second pinion (17) being fixed on top flywheel (14)；It is characterized in that, described differential attachment includes the 3rd axle planetary mechanism of lower support mode；Described planetary mechanism includes, the first clamping plate post (5), bearing bracket stand (6), cylindrical roller axle (7), cylindrical roller (8), internal ring (9) and sun gear (12)；Planetary gear (3) engages with sun gear (12), and gear ratio is 1:5-15, and described driving wheel (1) is fixed as one by the first clamping plate post (5) and bearing bracket stand (6)；Cylindrical roller (8) is uniformly arranged on cylindrical roller axle (7), and cylindrical roller axle (7) and bearing bracket stand (6) are fixed as one, and described cylindrical roller (8) can rotate freely；Described sun gear (12) and internal ring (9) concentric are fixed as one, the bottom of described cylindrical roller (8) contacts with the outer rim step of outer rim with internal ring (9), the upper end of cylindrical roller (8) coordinates with the inner edge step clearance of sun gear (12), and described bearing bracket stand (6) can flexible rotating for axle with the axial line of internal ring (9)；Described internal ring (9) is fixed by screws on clamping plate (10)；Top flywheel (14) and outer shaft framework (13) rotate with the axial line of sun gear (12) for axle.
2. three axle top flywheel mechanisms of mechanical watch according to claim 1；It is characterized in that, described differential attachment includes: support (2), planetary gear (3), support shaft (4), planetary mechanism, clamping plate (10) and the second clamping plate post (11)；Described planetary gear (3) and support shaft (4) riveted are integrated, and described support shaft (4) is arranged on the jewel bearing of support (2), and described planetary gear (3) engages with planetary mechanism, and described clamping plate (10) are fixed on substrate by the second clamping plate post (11).
3. three axle top flywheel mechanisms of mechanical watch according to claim 1；It is characterized in that, described planetary gear (3) and sun gear (12) are angular wheel；Described planetary gear (3) revolves round the sun around sun gear (12), and meanwhile, described planetary gear (3) is with the axial line rotation of outer shaft framework (13).
4. three axle top flywheel mechanisms of mechanical watch according to claim 1；It is characterized in that, described planetary gear (3) is spur gear, and described sun gear (12) is crown tooth；Described planetary gear (3) revolves round the sun around sun gear (12), and meanwhile, described planetary gear (3) is with the axial line rotation of outer shaft framework (13).
5. three axle top flywheel mechanisms of mechanical watch according to claim 1；It is characterized in that, described cylindrical roller (8) is three, five, seven or nine；Cylindrical roller axle (7) and bearing bracket stand (6) are fixed as one by screw or the two direct pressing is integrated.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310351044.4A CN103412471B (en) | 2013-08-13 | 2013-08-13 | Three-axis tourbillon mechanism of mechanical watch |
| PCT/CN2014/072439 WO2015021765A1 (en) | 2013-08-13 | 2014-02-24 | Triple-axis tourbillon mechanism of mechanical watch |
| DE112014000171.6T DE112014000171B4 (en) | 2013-08-13 | 2014-02-24 | Three-axis tourbillon for a mechanical wristwatch |
| CH00637/15A CH709098B1 (en) | 2013-08-13 | 2014-02-24 | Three-axis tourbillon mechanism for a mechanical wristwatch. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310351044.4A CN103412471B (en) | 2013-08-13 | 2013-08-13 | Three-axis tourbillon mechanism of mechanical watch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103412471A CN103412471A (en) | 2013-11-27 |
| CN103412471B true CN103412471B (en) | 2016-06-29 |
Family
ID=49605497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310351044.4A Active CN103412471B (en) | 2013-08-13 | 2013-08-13 | Three-axis tourbillon mechanism of mechanical watch |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN103412471B (en) |
| CH (1) | CH709098B1 (en) |
| DE (1) | DE112014000171B4 (en) |
| WO (1) | WO2015021765A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412471B (en) * | 2013-08-13 | 2016-06-29 | 天津海鸥表业集团有限公司 | Three-axis tourbillon mechanism of mechanical watch |
| CN106227019B (en) * | 2016-09-29 | 2018-08-17 | 福州小神龙表业技术研发有限公司 | A kind of time run second watch and clock movement and its working method |
| CH713738B1 (en) * | 2017-04-28 | 2021-05-14 | Mft Romain Gauthier Sa | Tourbillon watch movement with inclined fixed wheel. |
| CN108581506A (en) * | 2018-06-12 | 2018-09-28 | 如皋市力星滚子科技有限公司 | Large roller connection system |
| CN110611168B (en) * | 2019-09-21 | 2020-11-20 | 深圳市锦凌电子有限公司 | Multi-antenna calibration device for 5G communication |
| CN112305894B (en) * | 2020-10-28 | 2022-04-26 | 深圳市格雅表业有限公司 | Tourbillon in mechanical clock movement |
| CH718424B1 (en) * | 2021-03-11 | 2023-10-31 | Richemont Int Sa | Timepiece with a display device comprising at least one ornamental mobile. |
| EP4266132A1 (en) * | 2022-04-22 | 2023-10-25 | Blancpain SA | Vortex-type actuator or three-dimensional carousel provided with a peripheral ball bearing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1276022A2 (en) * | 2001-07-12 | 2003-01-15 | Franck Muller-Watchland SA | Mechanical watch |
| CN1667527A (en) * | 2004-03-09 | 2005-09-14 | 弗兰克·米勒·瓦差兰股份有限公司 | Tri-axial tourbillon for a timepiece, in particular a wristwatch |
| CN101846961A (en) * | 2009-03-26 | 2010-09-29 | 天津海鸥表业集团有限公司 | Mechanical watch with two tourbillons |
| CN102809919A (en) * | 2011-05-30 | 2012-12-05 | 天津海鸥表业集团有限公司 | Double-axis tourbillon mechanism of mechanical watch |
| CN203444249U (en) * | 2013-08-13 | 2014-02-19 | 天津海鸥表业集团有限公司 | Three-axis tourbillon mechanism of mechanical watch |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH693832A5 (en) | 2002-08-30 | 2004-02-27 | Guebelin Ag | Whirlwind pocket watch for telling the time has pivot mounting with rotary bearing near outer radial boundary and toothing near outer radial boundary for driving pivot mounting |
| CH696450A5 (en) * | 2003-02-27 | 2007-06-15 | Heike Prescher | Clock. |
| WO2005071498A1 (en) * | 2004-01-26 | 2005-08-04 | Gübelin AG | Tourbillon |
| HU227321B1 (en) * | 2008-03-06 | 2011-03-28 | Aron Becsei | Tri-axial tourbillon for a timepiece, in particular a wrist watch |
| CN101446799B (en) * | 2009-01-09 | 2010-11-24 | 天津海鸥表业集团有限公司 | A tourbillon mechanical wristwatch with simultaneous rotation and revolution |
| CH705244B1 (en) * | 2011-07-07 | 2016-06-30 | Gfpi S A | Timepiece. |
| CN103412471B (en) * | 2013-08-13 | 2016-06-29 | 天津海鸥表业集团有限公司 | Three-axis tourbillon mechanism of mechanical watch |
-
2013
- 2013-08-13 CN CN201310351044.4A patent/CN103412471B/en active Active
-
2014
- 2014-02-24 WO PCT/CN2014/072439 patent/WO2015021765A1/en active Application Filing
- 2014-02-24 CH CH00637/15A patent/CH709098B1/en unknown
- 2014-02-24 DE DE112014000171.6T patent/DE112014000171B4/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1276022A2 (en) * | 2001-07-12 | 2003-01-15 | Franck Muller-Watchland SA | Mechanical watch |
| CN1667527A (en) * | 2004-03-09 | 2005-09-14 | 弗兰克·米勒·瓦差兰股份有限公司 | Tri-axial tourbillon for a timepiece, in particular a wristwatch |
| CN101846961A (en) * | 2009-03-26 | 2010-09-29 | 天津海鸥表业集团有限公司 | Mechanical watch with two tourbillons |
| CN102809919A (en) * | 2011-05-30 | 2012-12-05 | 天津海鸥表业集团有限公司 | Double-axis tourbillon mechanism of mechanical watch |
| CN203444249U (en) * | 2013-08-13 | 2014-02-19 | 天津海鸥表业集团有限公司 | Three-axis tourbillon mechanism of mechanical watch |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112014000171B4 (en) | 2020-06-18 |
| WO2015021765A1 (en) | 2015-02-19 |
| DE112014000171T5 (en) | 2015-04-16 |
| CH709098B1 (en) | 2018-06-15 |
| CN103412471A (en) | 2013-11-27 |
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