DE112012000574T5 - Two-axle tourbillon for a mechanical wristwatch - Google Patents

Abstract

This invention has disclosed a two-axis tourbillon mechanism for a mechanical wristwatch wherein the described inner tourbillion is disposed on the first clamping plate integrating the first carrier shaft of the first carrier with the second intermediate gear of the intermediate gear device, the second carrier shaft of the described second carrier is assembled with the fourth second wheel of the transmission system, the center of the axis of the described first carrier shaft and the center axis of the second carrier shaft is in a horizontal line and the described Zwischenradvorrichtung and the gear is arranged on the bottom plate. The effect is to reduce the thickness of the frame and to obtain smaller thickness of the final product, the bevel gear to implement the rotation of tourbillon in the dimensional space of the frame, where it can achieve better transmission stability and accuracy. The carrier shaft of the outer frame can be completely dismantled, whereby it is easy to install and repair. By the control device, the axial height of the second carrier is to be fine-tuned so that the concentricity of the mutual support of the outer frame is effectively guaranteed and the Tourbillion's frame in the dimensional space can turn more stably.

Description

TECHNICAL PART

The present invention relates to a tourbillon for a mechanical wristwatch, in particular a two-axis tourbillon for a mechanical wristwatch.

TECHNICAL BACKGROUND

A tourbillon in a mechanical watch is a mechanism for reducing isochronous deviation. One feature of the mechanism is that the balance spring and armature are in the frame and can rotate together with the frame as they rotate about their own axis, so that the time deviation caused by gravity is minimized, which improves the accuracy of the gearing is improved. In this case, the mechanism in which the axis of the balance spring superimposed on the frame axis (see the patent "A coaxial and rotating anchor escapement for speed control" and the patent number LZ200720096902.5), referred to as a coaxial tourbillon. As part of Tourbillon, the rotating axis of the balance spring will superimpose its own frame axis. That's why this tourbillon is also called a single-axle tourbillon.

Now, a two-axle tourbillon is known, by which the time deviation caused by gravity is minimized, which improves the accuracy of accuracy, such as two-axle series tourbillon, whose feature is that the rotating axle in the inner frame of the loaded balance spring with the rotating axis of the outer frame of the connected carrier intersects vertically and the angle between the rotating axis of the inner frame and axis always changes from 0 ° to 90 °, and the axis of rotation of the outer frame is perpendicular to the axis of the caliber.

The existing two-axle tourbillon, like CN Patent Number 2036454A and U.S. Patent No. 18060147760A1 is both a two-axle tourbillon. Among them, the patent number CN2036454A is the type with two-axis series closure, in the inner frame Breguet Tourbillonmechanismus is arranged, which is a type with support up and down. The power supply is realized by the toothed shaft, which is arranged at the bottom of the outer frame, and flat teeth, which is tightened on the clipboard. This construction has a disadvantage that the wristwatch is relatively thicker. Because the outer frame of tourbillon must lock up, the thickness of the overall frame also becomes relatively larger. By this energy supply, the planer teeth should be a larger annular gear, so that the thickness of the caliber is greater.

Patent specification with number US18060147760A1 has a feature that balance spring and armature are in a frame and can rotate together with the frame while rotating about its own axis, and the axis of rotation of the whole frame is perpendicular to the axis of the caliber and a rotation from 0 to 90 ° takes place. The disadvantage of this mechanism is that the frame of the balance spring and anchor escapement can only rotate perpendicular to the axis of the caliber, whereby the construction of the two-axle series tourbillon is not realized, so that the deviation becomes larger in the horizontal or vertical position of the wristwatch. At the same time, the center of rotation of the whole frame is supported by the gemstone bearing, which is inserted vertically to the bottom plate. The bottom plate requires a very high machining accuracy, so that the dynamic stability of the whole mechanism is impaired. In addition, the clock gear meshes with the armature shaft to transmit the axial movement directly to the escape wheel. The drive through these teeth with these two types of gear is not stable, so that the movement of the whole mechanism is also impaired and the accuracy of the clock deteriorates.

CONTENT OF THE INVENTION

The present invention seeks to overcome the current technical problems by providing a two-axis tourbillon which is simple in construction and has excellent technology but is easy to manufacture.

The technical concept according to the invention is: a two-axis tourbillon for a mechanical wristwatch, the two-axis tourbillon is an open series structure, including bottom plate, Zwischenradvorrichtung, first carrier, inner tourbillion, second carrier and gear, said inner tourbillon described at the first Second clamping plate is arranged, the first carrier shaft of the first carrier integrated with the second intermediate gear of the Zwischenradvorrichtung, the second carrier shaft of the described second carrier is assembled with the fourth second wheel of the transmission system, the center of the axis of the described first carrier shaft and the Achsemitte the second carrier shaft is in a horizontal axis and the described Zwischenradvorrichtung and the gear is arranged on the bottom plate.

The first carrier described consists of the first carrier shaft, the first gem storage and the first carrier. The described first carrier wave is arranged on the first jewel bearing of the first carrier. The first described Carrier shaft has a square hump. The square hump adapts to the inner diameter of the second intermediate gear. The described second carrier includes second carrier shaft, second jewel bearing, and second carrier. The described second carrier shaft is arranged on the second jewel bearing of the second carrier. The described first carrier shaft and second carrier shaft are respectively to be fixed by column of the clamping plate and screws on the first second plate.

This mechanism also includes control means which serves to regulate the axial height of the second carrier so as to fine tune the concentricity between the second jewel bearing supported by the second carrier shaft and the first jewel bearing supported by the first carrier shaft , The control device includes clamped base, bush, suspension spring, adjusting nut. On the outer surface of the described clamped foot adjusting nut and socket is arranged. Between adjusting nut and socket is a suspension spring.

This mechanism also has a control device. This described control device includes clamped base and socket, which described bush 0.2-0.5 mm high.

This Zwischenradvorrichtung consists of first intermediate toothed shaft, first intermediate gear and second intermediate. The described first intermediate gear is riveted to the first intermediate gear shaft and arranged on the lower clamping plate. The described second intermediate gear meshes with the first intermediate gear. The prominent transmission system includes the fourth second wheel, third second wheel disk, third second gear shaft, second second wheel disk, second second gear shaft and first second gear shaft. The fourth second wheel must be fastened to the second bracket with screws. The above third second wheel disc is riveted in with the third second gear shaft and disposed on the second second clamping plate. The described third second wheel disc is meshed with the fourth second wheel. The described second second wheel disc is riveted to the second second toothed shaft. This described second second wheel disc interlocks with the third second toothed shaft. The described first gear shaft is built with internal tourbillon. The described first second toothed shaft meshes with the second second wheel disc. The second carrier is to be fastened by the control device to the bottom plate.

The described first intermediate gear, the second intermediate gear, fourth second wheel and the third second wheel disc is bevel gear.

The ratio of the number of teeth between the second intermediate gear and the first intermediate gear is 1: 1. The ratio of the number of teeth between the third toothed shaft and the first toothed shaft is 1: 1.

The rotation speed of the outer frame is 2-10 minutes for a circular rotation. The turning speed of the inner tourbillon is 1 minute for a circular turn. The ratio of the number of teeth between the third second wheel disc and the fourth second wheel is 1: (2-10)

The ratio of the number of teeth between the third wheel disc and the fourth second wheel is 1: 2.5 or 1: 5.

The advantage of this invention is that the whole frame is an open structure. In order to reduce the thickness of the frame and to obtain a smaller thickness of the final product, the bevel gear is to be used for realizing the rotation of tourbillon in the dimensional space of the frame of which it can achieve better transmission stability and accuracy. The rotary shaft of the outer frame is to be applied by the gemstone storage of the first and second carrier as a support bearing. The advantage is that the work process of the bottom plate is simplified, manufacturing fairness is good and easy to increase the machining precision. The carrier shaft of the outer frame can be completely dismantled, whereby it is easy to install and repair. By the control device, the axial height of the second carrier is to be fine-tuned so that the concentricity of the mutual support of the outer frame is effectively guaranteed and the Tourbillion's frame in the dimensional space can turn more stably.

Brief description of the drawings

1 axial view of Example 1 of the invention;

2 Floor plan of Example 1 according to the invention;

3 Stereogram of Inventive Example 1;

4 axial view of Example 2 of the invention.

LIST OF REFERENCE NUMBERS

1

baseplate

2

Under clamp

3a

first intermediate toothed shaft

3b

first intermediate gear

4

second intermediate wheel

5

first gear shaft

6

first gemstone storage

7

first carrier

8th

Clamp column

9

first second clamp

10

second transmission shaft

11

second gemstone storage

12

Second carrier

13

fourth second wheel

14a

third second wheel disc

14b

third second toothed shaft

15a

second second toothed disc

15b

second second toothed shaft

16

first second toothed shaft

17

Inner tourbillon

18

second second clamping plate

19

clamped foot point

20

Rifle

21

suspension spring

22

adjusting nut

DETAILED DESCRIPTION OF THE DRAWINGS

In the following, the invention will be further described in detail with reference to figures and exemplary embodiments.

As in 1 to 3 The advantage of the mechanism of two-axis tourbillon for a mechanical wristwatch is an open structure, including bottom plate 1 , Idler gear, first vehicle, inside tourbillion 17 , first second clamp 9 , second carrier, transmission system and control device. The described inner tourbillon 17 is at the first second-clamp 9 arranged. The above carrier 1 and 2 is at the bottom plate 1 intended. The described Zwischenradvorrichtung is at the lower clamping plate 2 provided. The above transmission system is located on the second clamping plate.

The described intermediate wheel consists of first intermediate toothed shaft 3a , first intermediate gear 3b , second idler 4 out. The above first intermediate gear 3b is with the first intermediate toothed shaft 3a riveted in and gemeisam on the lower clamping plate 2 arranged. The first intermediate gear 3b is bevel gear. The described second intermediate 4 interlocked with the first intermediate gear 3b together. The second idler 4 is bevel gear. The inner profile of the second idler 4 is a square hole, it is square hump of the first carrier wave 5 Adjusts and tightened with screws that the direction of rotation of the screws with the second intermediate 4 matches. The ratio of the number of teeth between the second intermediate gear 4 and first intermediate gear 3b is 1: 1. The above first carrier includes first carrier shaft 5 , first gemstone storage 6 and first carrier 7 one. The described carrier wave 5 is at the first gemstone storage 6 on the carrier 7 arranged. The described carrier wave 5 is by clamp plate column 8th and screws with the first second clamp 9 tighten. The described second carrier device includes second carrier shaft 10 , second gemstone storage 11 and second carrier 12 , The described second carrier wave 10 is with the second gemstone storage 11 of the second carrier 12 connected. The described first carrier wave 5 and second carrier wave 10 is in each case by the Klemmplattekolumne 8th and screws with the first second clamp 9 connect to. The described transmission system closes the fourth second wheel 13 third second wheel disc 14a third second toothed shaft 14b second second wheel disc 15a second second toothed shaft 15b , first second toothed shaft 16 one. The described fourth second wheel 13 is by screws on the second carrier 12 tighten. The fourth second wheel 13 is bevel gear. The third wheel disc 14a is with the third second tooth wave 14b riveted in and together on the second second clamping plate 18 arranged. The third second wheel disc 14a is bevel gear. This described third second wheel disc 14a interlocked with the fourth second wheel 13 , The second second wheel disc 15a is with the second second tooth wave 15b riveted together.

The described second second wheel disc 15a is with the third second tooth wave 14b toothed The described first second toothed shaft 16 Integrates with the inner tourbillon 17 in itself. That is why here is the structure of the inner tourbillon 17 no longer presented, please see patent no. 200720096902.5 "Coaxial control device for wristwatches," whose rotational speed of the tourbillon is 1 minute per revolution. The described first second toothed shaft 16 is with the second second wheel disc 15a toothed. The ratio of the number of teeth between the third second toothed shaft 14b and first second toothed shaft 16 is 1: 1. The ratio of the number of teeth between the fourth second wheel 13 and the third-second wheel disc 14a is 2.5 or 5 compared to the rotational speed of the outer frame. This value means that the rotation speed of the outer frame is 2.5 minutes per circle rotation or 5 minutes per circle rotation. This value is in the range of 2 to 10. The rotation speed of the inside tourbillon is 1 minute per circle turn. That is why the ratio of the number of teeth between the third second wheel disc 14a and fourth-second wheel 13 1: (2-10). The described second carrier 12 is by regulating device on the bottom plate 1 to arrange, this described control device for adjusting the axial height of the second carrier 12 serves to allow the coaxiality of the second gemstone bearing 11 of the second carrier 10 and first gemstone storage 6 of the first carrier 5 is fine-tuned. The regulating device closes clamped foot point 19 , Rifle 20 , Suspension spring 21 and adjusting nut 22 , The described clamped foot point 19 has adjusting nut on its outer surface 22 and socket 20 on. Between adjusting nut 22 and socket 20 is a suspension spring 21 arranged.

Like in the 4 illustrated, Embodiment 2, the second carrier described 12 is through the clamped foot point 19 and socket 20 as well as screws on the bottom plate 1 attached. The thickness of the bush 20 can be rationally selected within 0.2 to 0.5 mm. Main objective is with the help of jack 20 of different thicknesses, the axial height of the second carrier 12 continue to adjust, so that the coaxiality of the second carrier 10 supported second gemstone storage 11 and the first carrier wave 5 supported first gemstone storage 6 continues to be regulated. Their structure is the same as in the embodiment 1. This is not stated.

The overall framework of the invention employs an open structure. The inner tourbillon is constructed to a structure of swing tourbillon, thereby the overall thickness of the caliber is smaller. For the gear system in the outer frame in conjunction with the inner tourbillon can be selected according to the design within a ratio of the number of teeth from 2 to 10. Preferably, 2.5 or 5 is to be selected as the ratio of the number of teeth of the outermost Energieeinfuhrrads to determine the rotational speed of the outer frame. This construction is more suitable for systematization of the invention. In addition, the rotation of the frame of tourbillon in a dimensional space by the bevel gear to realize. Because the drive of bevel gear is stable and strong, it is very suitable for the movement of the Tourbillon frame in a dimensional space for a mechanical wristwatch. The drive stability has ensured the accuracy of the mechanical wristwatch. Incidentally, the rotation axis center of the outer frame is considered to be a support bearing by the jewel bearing of the first and second brackets, but not the construction to surround the jewel bearing in the bore of the floor plate, thereby reducing the machining process of the floor plate and increasing machining precision of the components. Technology is outstanding and the accuracy of the wristwatch is better. In addition, the outer frame as a carrier shaft is also completely easy to install and maintain, making it very easy and inexpensive. Finally, according to the invention, a structure with adjusting nut is also used for the second carrier, d. H. the axial height of the second carrier can be fine adjusted by adjusting nut, thereby the coaxiality of the mutual support of outer frame according to the invention can be easily adjusted. Therefore, the stability of the dimensional rotation of the Tourbillion frame is guaranteed so that the watch can run on time.

Work process of this invention is as follows.

The transmission system according to the invention directs the energy of the caliber to the first intermediate toothed shaft 3a over to the first intermediate tooth shaft 3a to turn counterclockwise. The first intermediate gear 3b drives the second idler 4 clockwise. Because the second idler 4 is integrated with the outer frame according to the invention in itself, the outer frame and the inner tourbillon will rotate simultaneously in a clockwise direction. Make sure that the center of rotation of the outer frame is perpendicular to the axis of the caliber. The third second wheel disc 14a rotates when driving the outer frame to that on the second carrier 12 arranged fourth second wheel 13 clockwise, it also revolves around its own axis. The third second toothed shaft 14b drives through the second second wheel disc 15a the first second toothed shaft 16 to rotate clockwise. Because the first second tooth wave 16 with inner tourbillon 17 integrated in itself, the balance spring turns of inner tourbillon 17 after energy import. The inner tourbillon turns at a speed of 1 minute for a circular turn. The angle, which forms from the axis of rotation of the inside and the axis of the caliber, changes from 0 ° to 90 °. The center of rotation of the inner tourbillon crosses perpendicular to the center of rotation of the outer frame. The rotation speed of the outer frame is 2.5 or 5. This value means that the outer frame rotates at a rotation speed of 2.5 or 5 minutes and requires a rotation of the circle within 2 to 10 minutes.

It should be noted that this embodiment is a coaxial tourbillon. The scope of this invention is not limited to the above embodiments only. According to the technical concept of this invention, the transmission can be applied with similar construction. By applying the eccentric tourbillon, the object of this invention can still be fulfilled. These embodiments, which have been devised by those skilled in the art without creative effort, are also within the scope of this invention.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• CN 2036454 A [0004]
• US Pat. No. 18060147760 A1 [0004, 0005]

Claims (9)

Mechanism of two-axis tourbillon for a mechanical wristwatch, characterized in that the mechanism of two-axis tourbillon is an open structure, including bottom plate ( 1 ), Intermediate gear device, first carrier, inner tourbillion, second carrier and transmission system, the inner tourbillon ( 17 ) on the first second clamping plate ( 9 ), the first carrier shaft of the first carrier with the second intermediate ( 4 ) of the Zwischenradvorrichtung, the second carrier shaft of the described second carrier is assembled with the fourth second wheel of the transmission system in itself, the center of the axis of the described first carrier shaft and the center axis of the second carrier shaft is in a horizontal line and the described Zwischenradvorrichtung and the Gear wheel on the bottom plate ( 1 ) is arranged. Mechanism of two-axis tourbillon for a mechanical wristwatch according to the patent 1, characterized in that the described carrier consists of a first carrier shaft ( 5 ), first gemstone storage ( 6 ) and first carrier ( 7 ), the described first carrier wave ( 5 ) on the first gemstone storage ( 6 ) of the first carrier ( 7 ), the first carrier wave ( 5 ) has a square hump, the square hump at the inner diameter of the intermediate ( 4 ), the described second carrier second carrier wave ( 10 ), second gemstone storage ( 11 ) and second carrier ( 12 ), the described second carrier wave ( 10 ) at the second gemstone storage ( 11 ) of the second carrier ( 12 ), the described first carrier wave ( 5 ) and second carrier wave ( 10 ) each by column ( 8th ) of the clamping plate and screws on the first second clamping plate ( 9 ) is to be attached. Mechanism of two-axis tourbillon for a mechanical wristwatch according to Patent 1 or 2, characterized in that this mechanism also includes regulating means, this described regulating device for adjusting the axial height of the second carrier ( 12 ), so that the concentricity between the second gemstone storage ( 11 ) received from the second carrier wave ( 10 ) and the first gemstone storage ( 6 ) from the first carrier wave ( 5 ) is fine-tuned, the controller clamped 19 ), Rifle ( 20 ), Suspension spring ( 21 ), Adjusting nut ( 22 ) on the outer surface of the described clamped foot point ( 19 ), Adjusting nut ( 22 ) and socket ( 20 ) is arranged and between the adjusting nut and socket a suspension spring ( 21 ) located. Mechanism of two-axis tourbillon for a mechanical wristwatch according to the patent 1 or 2, characterized in that this mechanism also has a control device, said control device clamped foot point ( 19 ) and socket ( 20 ), the described socket ( 20 ) 0.2-0.5 mm high. Mechanism of two-axis tourbillon for a mechanical wristwatch according to the patent 1, characterized in that this intermediate gear device consists of a first intermediate toothed shaft ( 3a ), first intermediate gear ( 3b ) and second intermediate wheel ( 4 ), the described first intermediate transmission ( 3b ) with the first intermediate toothed shaft ( 3a ) riveted and on the lower clamping plate ( 2 ), the described second intermediate wheel ( 4 ) with the first intermediate gear ( 3b ), the prominent transmission system gears the fourth second wheel ( 13 ), third second wheel disc ( 14a ), third second toothed shaft ( 14b ), second second wheel disc ( 15a ), second second toothed shaft ( 15b ) and first second toothed shaft ( 16 ), the fourth second wheel ( 13 ) with screw on the second support ( 12 ), the projecting third second wheel disc ( 14a ) with the third second toothed shaft ( 14b ) and at the second second clamping plate ( 18 ), the described third second wheel disc ( 14a ) with the fourth second wheel ( 13 ) is riveted, the described second second wheel disc ( 15a ) with the third second toothed shaft ( 14b ) toothed, described the first toothed shaft ( 16 ) with the inner tourbillon ( 17 ), the described first second toothed shaft ( 16 ) with the second second wheel disc ( 15a ), the described second carrier ( 12 ) by the control device on the bottom plate ( 1 ) is to be attached. Mechanism of two-axis tourbillon for a mechanical wristwatch according to the patent 1, characterized in that the described first intermediate gear ( 3b ), second intermediate wheel ( 4 ), fourth-second wheel ( 13 ) and the third second wheel disc ( 14a ) Bevel gear is. Mechanism of two-axis tourbillon for a mechanical wristwatch according to the patent 1, characterized in that the ratio of the number of teeth between the second intermediate wheel ( 4 ) and first intermediate gear ( 3b ) 1: 1 and the ratio of the number of teeth between the third second toothed shaft ( 14b ) and first toothed shaft ( 16 ) Is 1: 1. Mechanism of two-axis tourbillon for a mechanical wristwatch according to Patent 5, characterized in that the rotational speed of the outer frame is 2-10 minutes for a circular rotation and the rotational speed of the inner tourbillon is 1 minute for a circular rotation, the ratio of the number of teeth between the third second Wheel disc ( 14a ) and the fourth second wheel ( 13 ) 1: (2-10). Mechanism of two-axis tourbillon for a mechanical wristwatch according to Patent 8, characterized in that the ratio of the number of teeth between the third wheel disc ( 14a ) and the fourth second wheel ( 13 ) Is 1: 2.5 or 1: 5.

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