CN113671814B

CN113671814B - Watch with ring barrel structure

Info

Publication number: CN113671814B
Application number: CN202110892269.5A
Authority: CN
Inventors: 李乔辉
Original assignee: Hangzhou Watch Co ltd
Current assignee: Hangzhou Watch Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-09-13
Anticipated expiration: 2041-08-04
Also published as: CN113671814A

Abstract

The invention discloses a watch with an annular barrel wheel structure, wherein a tourbillon and a barrel wheel are arranged in the watch, the barrel wheel comprises a barrel, the section of the barrel is annular, the middle part of the barrel is a tubular barrel shaft, and the barrel shaft and the barrel are coaxial and can rotate freely relatively; the clockwork spring surrounds between the barrel arbor and the barrel, the inner end is fixed with the barrel arbor, and the outer end is fixed with the barrel. The invention has the beneficial effects that: the annular barrel wheel arranged around the centrally-mounted tourbillon is adopted, so that the utilization rate of the outer annular space of the centrally-mounted tourbillon can be improved to the greatest extent, and the energy storage capacity and the working stability of the kinetic energy device are improved.

Description

Watch with ring barrel structure

Technical Field

The invention belongs to the field of watches, and particularly relates to a watch with an annular barrel wheel structure.

Background

The structure of the central tourbillon is widely applied to high-grade watches. In the watch applying the tourbillon structure, the tourbillon is arranged at the center of the dial plate, and the power storage system can adopt a traditional single-box-wheel structure, and has the defects of limitation of the diameter and the height of a box wheel, low space utilization, insufficient energy storage and short continuous travel time of the watch after the watch is full; or a plurality of traditional barrel wheel assemblies arranged around the outside of the tourbillon. For example, chinese patent document CN112711182A discloses a "large-visibility-ratio middle three-dimensional tourbillon mechanism" on 27/4/2021, which includes a plurality of barrel wheels and a hollow bracket, wherein the barrel wheels are annularly arranged around the periphery of the hollow bracket, and adjacent barrel wheels are connected in series in terms of power; the transmission gear ring is fixedly installed with the hollow bracket, and the barrel wheel positioned at the last position of the serial connection is meshed with the transmission gear ring. The invention has the beneficial effects that: the existing space energy storage is fully utilized, the travel time after the full strip is fed can be obviously prolonged, the structure is simplified, the thickness of the machine core is reduced, and conditions are created for improving the visual proportion. In the traditional structure, although the space utilization rate is improved to a certain degree and the energy storage is increased, the problems of complex mechanism, unsmooth front-back connection of a plurality of spiral springs, unstable torque output and the like exist.

Disclosure of Invention

Based on the problems, the invention provides the watch with the annular barrel wheel structure, the annular barrel wheel is arranged by surrounding the middle tourbillon by the clockwork, the utilization rate of the outer annular space of the middle tourbillon can be improved to the greatest extent, and the energy storage capacity and the working stability of the kinetic energy device are improved.

In order to realize the purpose of the invention, the invention adopts the following technical scheme: a watch with an annular barrel wheel structure is internally provided with a tourbillon and a barrel wheel, wherein the barrel wheel comprises a barrel, the section of the barrel is annular, the middle part of the barrel is a tubular barrel shaft, and the barrel shaft and the barrel are coaxial and can relatively freely rotate; the clockwork spring surrounds between the barrel arbor and the barrel, the inner end is fixed with the barrel arbor, and the outer end is fixed with the barrel.

Preferably, the diameter of the barrel is not less than 90% of the diameter of the movement, and the inner diameter of the barrel shaft is matched with the outer diameter of the middle tourbillon.

Preferably, the barrel cover is matched and buckled with the barrel.

Preferably, the barrel bearing is provided with an axis coincident with the axis of the barrel; the barrel and the barrel cover are tightly matched with the outer ring of the barrel bearing, and the barrel shaft is tightly matched with the inner ring of the barrel bearing.

Preferably, the output wheel is fixed to an inner side wall of the barrel shaft.

Preferably, the winding device further comprises a winding wheel, wherein the winding wheel is positioned below the barrel, is tightly matched with the barrel and is meshed with the winding wheel.

Preferably, the axis of the winding wheel coincides with the axis of the barrel.

Preferably, a friction wheel piece engaged with the pointer wheel train is fixed on the outer side wall of the bar shaft.

Preferably, a winding ring gear meshed with the winding wheel is arranged on the back cover surface of the watch case, and the axis of the winding ring gear is overlapped with the axis of the barrel.

Preferably, the winding ring gear surrounds the outside of the case back, the axial direction of which coincides with the axial direction of the barrel.

The scheme is mainly applied to the watch with the built-in tourbillon. The design has annular barrel wheel in the scheme, has abandoned the circular structure of traditional barrel wheel, has changed annular structure into. Specifically, the section of the barrel is annular, the annular inner ring positioned in the middle is a tubular barrel shaft, the axial lines of the barrel and the barrel shaft are overlapped, and the barrel shaft can rotate freely relatively. The barrel can be provided with a barrel cover with a shape and a size which are matched, and the barrel cover are buckled and fixed, so that a barrel wheel forms a relatively sealed structure, and external dust and water vapor are prevented from entering the barrel. The barrel can rotate coaxially with the barrel shaft and can be a barrel bearing. The barrel bearings can be single or paired up and down, the barrel and the barrel cover are tightly matched with the outer ring of the barrel bearings, and the barrel shaft is tightly matched with the inner ring of the barrel bearings, so that smooth mutual rotation is ensured. The spring can be one, or a plurality of springs which are arranged in parallel can be adopted according to the requirement, but the springs are all wound between the barrel shaft and the barrel, the inner side end is fixed with the barrel shaft, the outer side end is fixed with the barrel, the barrel shaft does not move the barrel to rotate during winding, and the barrel shaft rotates the barrel to not move during releasing energy. In order to utilize the space in the dial as much as possible, the diameter of the barrel is not less than 90% of the diameter of the movement, and the inner diameter of the bar shaft is only slightly larger than the outer diameter of the central tourbillon.

The annular barrel wheel designed by the scheme also has two characteristics of an output wheel and a friction wheel sheet. The output wheel is an energy output gear with a barrel wheel structure, and in the scheme, the barrel shaft is of a tubular structure, so that the output wheel is installed on the pipe wall of the barrel shaft and can be an outer side wall or an inner side wall. Because the scheme is optimally matched on the middle-placed tourbillon watch, the middle-placed tourbillon is arranged in the pipe of the bar shaft, and therefore, the preferred output wheel is arranged on the pipe wall of the inner side of the bar shaft, energy can be transmitted to the middle-placed tourbillon nearby, and the motion rule of the escapement speed regulating system is fed back to the bar shaft. The friction wheel sheet is arranged on the outer side wall of the bar shaft and meshed with the pointer wheel train to drive the time division wheel to indicate time. In addition, in order to reduce the radial space waste in the watch core, the winding wheel is designed below the barrel.

In addition to the aforementioned improvements, the present solution also makes a significant improvement in the winding structure of the watch. The traditional winding structure is that a handle shaft radially extends from the inside of a watch core, the outer end of the handle shaft is a crown which is contacted and twisted by fingers of a wearer, the inner end of the handle shaft is meshed with a barrel wheel through a small steel wheel, a third wheel and the like, and the barrel wheel can be rotated to wind by twisting the crown at the outer end of the handle shaft of the wearer. In this scheme, because the annular barrel wheel of nearly full cloth watch core in the use, if continue to use this traditional structure, in order to hold little steel wheel and stem, must increase watch core size, this obviously is not conform to the small and exquisite frivolous design of wrist-watch and guides the thought, also leads to annular barrel wheel make full use of watch core inner space's design thinking to fail completely. Therefore, the scheme abandons the structure of the traditional radial stem, and designs the winding toothed ring on the back cover surface of the watch case. The axial of the winding gear ring is parallel to the axial of the barrel, and torque is transmitted into the watch core through a transmission path arranged in the radial direction, namely winding of the barrel is realized after the winding passing wheel is meshed with the winding wheel. The axis of the preferable winding toothed ring coincides with the axis of the barrel, the body of the winding toothed ring surrounds the edge of the outer ring of the rear cover face of the watchcase, a wearer rotates the winding toothed ring, the barrel can be driven to rotate through the winding wheel, the winding purpose is achieved, and the diameter of the watch core does not need to be increased. In order to balance the forces exerted on the winding ring and on the barrel and to ensure that the barrel rotates in a stable manner during winding or during energy release, it is also possible to provide a plurality of engagement points in the circumferential direction of the barrel.

In conclusion, the beneficial effects of the invention are as follows: the clockwork spring is arranged around the centrally-mounted tourbillon, so that the utilization rate of the outer annular space of the centrally-mounted tourbillon can be improved to the greatest extent, and the energy storage capacity and the working stability of the kinetic energy device are improved.

Drawings

Fig. 1 is an axial section of the case of the watch according to the invention.

Fig. 2 is a top view of an annular drum (with the drum cover and the drum bearings above removed).

Fig. 3 is an axial sectional view of the mating relationship of the annular drum and the peripheral component.

Wherein: 1 box, 2 box covers, 3 shafts, 4 box bearings, 5 clockwork springs, 6 winding wheels, 7 output wheels, 8 friction wheel sheets, 9 winding toothed rings, 10 winding wheel and 99 tourbillon.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings.

Examples

Embodiment 1 is a wristwatch with an annular barrel structure. As shown in fig. 1, the wristwatch of this embodiment is provided with a central tourbillon 99 and a ring-shaped barrel wheel.

The central tourbillon 99 is a prior art, and a specific structure is disclosed, and can be referred to various technical documents, patent documents and the like.

The particular structure of the annular drum is shown in fig. 2 and comprises a barrel 1, a barrel cover 2, a barrel shaft 3, a barrel bearing 4 and a spring 5. The sectional shape of the barrel 1 is annular, and the barrel shaft 3 is positioned in the middle of the barrel 1. The barrel shaft 3 in this example is a tubular structure, coaxial with the barrel 1. The barrel 1 and the adjusting shaft 3 are connected by one barrel bearing 4 above and below, and the barrel bearing 4 is also coaxial with the barrel 1. The barrel 1 is provided with a barrel cover 2 with corresponding shape and size, and the barrel cover 2 is buckled with the barrel 1. The barrel 1 and the barrel cover 2 are tightly matched with the outer ring of the barrel bearing 4, and the barrel shaft 3 is tightly matched with the inner ring of the barrel bearing 4, so that the barrel 1 and the barrel cover 2 can freely rotate relative to the barrel shaft 3. A spring 5 is mounted in barrel 1, and spring 5 in this example is a single spring and is wound around barrel 3 in a clockwise direction, with the outer end hooked on the inner side wall of barrel 1 and the inner end hooked on the outer side wall of barrel 3. When winding, the barrel 1 rotates anticlockwise relative to the barrel shaft 3, and when releasing energy, the barrel shaft 3 moves anticlockwise relative to the barrel 1.

Referring to fig. 3, an output wheel 7 is fixed to the drum 3 of the annular drum, and the output wheel 7 in this example is fixed to the inner side wall of the drum 3. When the barrel wheel releases energy, the barrel shaft 3 rotates, energy is transmitted to a middle tourbillon 99 arranged in the barrel of the barrel shaft 3 through the output wheel 7, and meanwhile, the motion rule of an escapement speed regulating system is fed back to the barrel shaft 3. The outer side wall of the barrel shaft 3 is fixed with a friction wheel sheet 8, and after the friction wheel sheet 8 is installed in the machine core, the friction wheel sheet is meshed with the pointer wheel train to drive the time-sharing wheel to indicate time. An annular winding wheel 6 is arranged below the barrel 1 and is tightly matched with the barrel 1. The axis of the winding wheel 6 coincides with the axis of the barrel 1, and the annular teeth are meshed with a plurality of pairs of winding passing wheels 10 to form linkage with a winding toothed ring 9 and keep stable balance of meshing effect.

Returning to fig. 1, in the watch of the present example, the diameter of the barrel 1 amounts to 96% of the diameter of the movement, while the internal diameter of the barrel 3 is adapted to correspond to the external diameter of the central tourbillon 99. The central tourbillon 99 is arranged in the tube of the barrel arbor 3, the barrel wheel transmits energy to the central tourbillon 99 through the output wheel 7, and the central tourbillon 99 simultaneously feeds back the motion law of the escapement speed regulation system to the barrel arbor 3 through the output wheel 7. The friction wheel sheet 8 is meshed with the pointer wheel train to drive the time division wheel to indicate time. On the outside of the back cover of the watch case in this example, a winding ring gear 9 is designed, and the axis of the winding ring gear 9 coincides with the axis of the barrel 1. The back cover of the watch case is provided with a winding passing wheel 10 which is vertically communicated, a winding toothed ring 9 is meshed with the lower end of the winding passing wheel 10, a winding wheel 6 is meshed with the upper end of the winding passing wheel 10, and a wearer can drive the barrel 1 to rotate by taking the winding passing wheel 10 and the winding wheel 6 as a medium by rotating the winding toothed ring 9, so that winding is realized. In order to balance the forces exerted on the winding ring 9 and on the barrel 1 and to ensure that the rotation of the barrel 1 is stable during winding or during energy release, two pairs of uniformly distributed winding idler wheels 10 are used in this case to engage with the winding wheel 6 in a circular manner, so as to ensure the working stability of the barrel 1.

Claims

1. A watch with an annular barrel wheel structure is internally provided with a tourbillon (99) and a barrel wheel, and the barrel wheel comprises a barrel (1), and is characterized in that the cross section of the barrel (1) is annular, the middle part of the barrel (1) is a tubular barrel shaft (3), and the barrel shaft (3) and the barrel (1) are coaxial and can relatively freely rotate; the clockwork spring (5) surrounds between the barrel arbor (3) and the barrel (1), the inner side end is fixed with the barrel arbor (3), and the outer side end is fixed with the barrel (1); the central tourbillon (99) is positioned in the tubular bar shaft (3).

2. The watch with the annular barrel wheel structure as claimed in claim 1, wherein the diameter of the barrel (1) is not less than 90% of the diameter of the movement, and the inner diameter of the barrel shaft (3) is adapted to the outer diameter of the central tourbillon (99).

3. A wristwatch with an annular barrel structure according to claim 1 or 2, characterized by further comprising a barrel cover (2) adapted to snap-fit with the barrel (1).

4. A wristwatch with an annular barrel structure according to claim 3, characterized by further comprising a barrel bearing (4) having an axis coinciding with the axis of the barrel (1); the barrel (1) and the barrel cover (2) are tightly matched with the outer ring of the barrel bearing (4), and the barrel shaft (3) is tightly matched with the inner ring of the barrel bearing (4).

5. A wristwatch with an annular barrel structure as claimed in claim 1 or 2, characterized in that the output wheel (7) is fixed to the barrel arbour (3).

6. A wristwatch with an annular barrel wheel structure according to claim 5, characterized in that the output wheel (7) is fixed on the inner side wall of the barrel arbour (3).

7. A wristwatch with an annular barrel structure according to claim 1 or 2, further comprising a winding wheel (6), wherein the winding wheel (6) is located below the barrel (1), is tightly fitted with the barrel (1) and is engaged with the winding idler (10).

8. A wristwatch with an annular barrel wheel structure according to claim 1 or 2, characterized in that a friction wheel plate (8) engaging with the hand train is fixed on the outer side wall of the barrel shaft (3).

9. A wristwatch with an annular barrel structure according to claim 1 or 2, characterized in that a winding rim (9) engaging with a winding roller (10) is provided on the case back, the axial direction of the winding rim (9) being parallel to the axial direction of the barrel (1).

10. A wristwatch with an annular barrel structure according to claim 9, characterized in that the winding ring (9) surrounds the outside of the case back, the axis coinciding with the axis of the barrel (1).