Watch handle structure of mechanical watch

Abstract

The utility model discloses a watch handle structure of a mechanical watch, which relates to the technical field of mechanical watches, and comprises a handle head, a bar tube, a spring, a handle shaft, a limiting piece and a gear, the bar tube is clamped and fixed in the handle head, the handle shaft is arranged in the bar tube in a sliding manner, and the gear is mounted at one end, far away from the bar tube, of the handle shaft. According to the watch handle structure of the mechanical watch, the hexagonal teeth at the port of the bar tube are changed into 24 latches arranged in a circle, and after the latches are matched with the hexagonal protrusions on the handle shaft, the problem that in the prior art, the hexagonal teeth can conflict with the hexagonal protrusions, and jamming is caused can be solved, and a user can feel smoother and more comfortable operation experience when adjusting the watch bezel.

Description

Technical Field

[0001] This utility model relates to the field of mechanical watch technology, specifically to a watch crown structure for a mechanical watch. Background Technology

[0002] In the intricate structure of a mechanical watch, the adjustment system, comprised of the crown, stem, shank, and gears, is the core component for achieving the bezel adjustment function. In traditional designs, the shank typically slides inside the stem, and in operation, its outer surface has hexagonal protrusions that engage with the hexagonal structures inside the stem or related transmission components, forming a locking mechanism. This design allows the user to rotate the crown to drive the shank, which in turn rotates the gears, thus adjusting the inner bezel of the mechanical watch.

[0003] However, in practical applications, this hexagonal-to-hexagonal locking transmission method has a long-standing unresolved problem. When the crown is pulled out of the watch case's threaded tube, the stem automatically springs outward due to the internal spring force. However, during this process, because the hexagonal protrusion and the hexagonal structure inside the stem or related transmission components are difficult to precisely align upon rebound, the stem often easily gets stuck. Figure 7 The shaded area is shown. This sticking phenomenon requires the user to apply additional force to make the stem spring back into place, thus affecting the smoothness of the adjustment operation and the user experience. For a long time, this problem has been difficult to solve effectively in the industry, becoming a technical bottleneck in mechanical watch design. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a watch crown structure for a mechanical watch, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a watch crown structure for a mechanical watch, including a crown head, a stem tube, a spring, a stem shaft, a limiting member, and a gear, wherein the stem tube is engaged and fixed inside the crown head, the stem shaft is slidably disposed inside the stem tube, and the gear is installed at the end of the stem shaft away from the stem tube.

[0006] Furthermore, a retaining tooth is provided around the inner side of the port at the end furthest from the handle.

[0007] Furthermore, a hexagonal protrusion is formed on the outer surface of one end of the shank that extends into the inside of the tube.

[0008] Furthermore, the spring abuts between the handle and the shank.

[0009] Furthermore, a retaining ring is provided inside the handle head, which is sleeved on the outside of the bar tube. A stepped protrusion is integrally provided at the end of the bar tube, and the retaining ring abuts against the stepped protrusion to engage and fix it.

[0010] Furthermore, the limiting member is movably disposed inside the bar tube and located between the spring and the handle shaft, with the end of the handle shaft inside the bar tube being configured as a spherical surface.

[0011] This invention provides a crown structure for a mechanical watch. Compared with the prior art, it has the following advantages:

[0012] The crown structure of this mechanical watch, by changing the hexagonal teeth at the crown port to 24 teeth arranged around the circumference, and adapting them to the hexagonal protrusions on the stem, solves the problem of the hexagonal teeth interfering with the hexagonal protrusions and causing jamming in the existing technology, so that users can experience a smoother and more comfortable operation when adjusting the bezel. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0014] Figure 2 This is a schematic diagram showing the disassembled structure of the tube and the shaft in this utility model;

[0015] Figure 3 This is a top view of the assembly of the tube and the shaft in this utility model;

[0016] Figure 4 This utility model Figure 3 Cross-sectional view of AA in the middle;

[0017] Figure 5 This is a schematic diagram of the assembly structure of this utility model;

[0018] Figure 6 This is a half-sectional view of the assembled version of this utility model;

[0019] Figure 7 This is a schematic diagram illustrating the rotational jamming caused by the hexagonal engagement of the barrel and the shank in existing technology.

[0020] In the diagram: 1. Handle head; 11. Retaining ring; 2. Bar tube; 21. Stepped protrusion; 22. Clamping tooth; 3. Spring; 4. Handle shaft; 41. Hexagonal protrusion; 5. Limiting element; 6. Gear. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 This utility model provides a technical solution: a mechanical watch crown structure, mainly composed of a crown head 1, a stem tube 2, a spring 3, a stem shaft 4, a limiting member 5, and a gear 6. The stem tube 2 is engaged and fixed inside the crown head 1. A retaining tooth 22 (a total of 24 teeth) is formed around the inner side of the end of the stem tube 2 opposite to the crown head 1. One end of the stem shaft 4 is slidably disposed inside the stem tube 2, and the stem shaft 4 extends into the end of the stem tube 2. A hexagonal protrusion 41 is formed on its outer surface. The spring 3 abuts between the crown head 1 and the stem shaft 4. The gear 6 is installed at the end of the stem shaft 4 opposite to the stem tube 2. The rotation of the gear 6 can adjust the inner bezel in the mechanical watch.

[0023] The head 1 is provided with a retaining ring 11 inside, which is sleeved on the outside of the bar tube 2. The end of the bar tube 2 is integrally provided with a stepped protrusion 21. The retaining ring 11 abuts against the stepped protrusion 21, thereby engaging and fixing it.

[0024] The limiting member 5 is movably disposed inside the bar tube 2 and is located between the spring 3 and the handle 4. The handle 4 is located at one end inside the bar tube 2 and is configured as a spherical surface.

[0025] During use, when the crown 1 is in its normal position, the spring 3 is compressed, and the engagement between the hexagonal protrusion 41 and the retaining tooth 22 is disengaged. Therefore, when the crown 1 is turned, the stem 4 will not rotate. When adjusting the bezel (inner ring), the crown 1 is rotated. When the crown 1 disengages from the case toothed tube (not shown in the figure), the crown 1 and the stem 2 will immediately pop out due to the action of the internal spring 3. After popping out, the hexagonal protrusion 41 and the retaining tooth 22 overlap and engage with each other. When the crown 1 is rotated, the stem 4 will rotate accordingly, thereby enabling the gear 6 to drive the dial to rotate for adjustment. After adjustment, the crown 1 is pressed down to disengage the engagement between the hexagonal protrusion 41 and the retaining tooth 22 again. At this time, the gear 6 will not rotate. Then, the crown 1 is turned back onto the case.

Claims

1. A crown structure for a mechanical watch, characterized in that, It includes a handle (1), a bar tube (2), a spring (3), a handle shaft (4), a limiting member (5), and a gear (6), wherein the bar tube (2) is engaged and fixed inside the handle (1), the handle shaft (4) is slidably disposed inside the bar tube (2), and the gear (6) is installed at the end of the handle shaft (4) away from the bar tube (2).

2. The crown structure of the mechanical watch according to claim 1, characterized in that, The inner side of the port of the bar tube (2) away from the end of the handle (1) has a retaining tooth (22).

3. The crown structure of the mechanical watch according to claim 1, characterized in that, A hexagonal protrusion (41) is provided on the outer surface of one end of the shank (4) that extends into the inside of the bar tube (2).

4. The crown structure of the mechanical watch according to claim 1, characterized in that, The spring (3) abuts between the handle (1) and the shank (4).

5. The crown structure of the mechanical watch according to claim 1, characterized in that, The handle (1) is provided with a retaining ring (11) inside. The retaining ring (11) is sleeved on the outside of the bar tube (2). The end of the bar tube (2) is integrally provided with a stepped protrusion (21). The retaining ring (11) and the stepped protrusion (21) abut against each other to lock and fix it.

6. The crown structure of the mechanical watch according to claim 1, characterized in that, The limiting member (5) is movably disposed inside the bar tube (2) and located between the spring (3) and the handle (4). The end of the handle (4) located inside the bar tube (2) is configured as a spherical surface.

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