Elastic metal watchband and watch

Abstract

The utility model relates to a kind of elastic metal watchband, belong to horological accessory technical field, including inner core and shell, wherein;The shell is set in the outside of the inner core;The inner core and the shell are by the sheet structure formed by the elastic linear body along its axial direction winding;The outer surface of the inner core is equipped with first limiting structure, and the inner surface of the shell is equipped with the second limiting structure matched with the first limiting structure;The first limiting structure and the second limiting structure are mutually engaged, to allow the inner core and the shell relative sliding along its axial direction within predetermined stroke, and limit the movement of the inner core and the shell beyond this predetermined stroke.

Description

Technical Field

[0001] This utility model belongs to the field of watch accessories technology, and specifically relates to an elastic metal watch strap and a watch. Background Technology

[0002] The most basic function of a watch strap is to securely fasten the watch to the wearer's wrist, ensuring it stays in place and doesn't easily fall off, guaranteeing normal use in various activities. Leather straps, with their elegance and comfort, have always been a classic choice, suitable for multiple occasions, especially dress watches. Metal straps, such as stainless steel and titanium alloys, are durable and have a high-quality feel, suitable for sporty styles and high-end watches, enhancing the overall sophistication of the timepiece. However, existing elastic metal straps have complex structures and are prone to deformation.

[0003] Therefore, in view of the problem that the structure of existing metal watch straps is complex and easily deformed, there is a need to provide an elastic metal watch strap. Utility Model Content

[0004] This invention provides an elastic metal watch strap to solve the problem that existing elastic metal watch straps are complex in structure and easily deformable.

[0005] This utility model is achieved through the following technical solution: an elastic metal watch strap, comprising an inner core and an outer shell, wherein; The outer shell is fitted over the outer part of the inner core; Both the inner core and the outer shell are sheet-like structures formed by winding elastic linear bodies along their axial direction; The outer surface of the inner core is provided with a first limiting structure, and the inner surface of the outer shell is provided with a second limiting structure that cooperates with the first limiting structure. The first limiting structure engages with the second limiting structure to allow the inner core and the outer shell to slide relative to each other along their axial direction within a predetermined stroke, and to limit the movement of the inner core and the outer shell beyond the predetermined stroke.

[0006] To better realize this utility model, further optimization is made to the above structure. The first limiting structure and the second limiting structure are continuous card platforms integrally formed on both sides along the length direction of the sheet-like structure.

[0007] To better realize this utility model, the above structure is further optimized, and the first limiting structure is arranged along the width direction of the inner core.

[0008] To better realize this utility model, the above structure is further optimized, and the second limiting structure is arranged along the width direction of the outer shell.

[0009] To better realize this utility model, the above structure is further optimized, and the inner core and the outer shell are made of the same elastic metal wire wound together.

[0010] To better realize this utility model, the above structure is further optimized. The inner core is made of a single elastic metal wire, and the outer shell is made of another elastic metal wire. The ends of the inner core and the outer shell are fixed by connectors and latches.

[0011] To better realize this utility model, the above structure is further optimized, and the elastic linear body is an elastic metal wire.

[0012] A watch comprising the aforementioned elastic metal strap.

[0013] Compared with the prior art, this utility model has the following advantages: An elastic metal watch strap includes an inner core and an outer shell, wherein the outer shell is sleeved on the outside of the inner core; both the inner core and the outer shell are sheet-like structures formed by winding elastic thread along their axial direction; the outer surface of the inner core is provided with a first limiting structure, and the inner surface of the outer shell is provided with a second limiting structure that cooperates with the first limiting structure; the first limiting structure and the second limiting structure engage with each other to allow the inner core and the outer shell to slide relative to each other along their axial direction within a predetermined stroke, and to restrict the movement of the inner core and the outer shell beyond the predetermined stroke.

[0014] The elastic watchband of this application, with its inner and outer layers formed by the winding of elastic linear bodies, integrally forms an interlocking limiting structure. This eliminates the need for traditional independent parts such as springs and pins, greatly simplifying the overall structure, reducing manufacturing costs and assembly difficulty. The simplified structure is easy to manufacture. Through the direct interlocking and sliding limiting of the inner and outer limiting structures, the maximum extension and contraction of the watchband is effectively constrained, preventing permanent deformation or structural damage caused by excessive stretching. Compared with existing structures, it is more robust, durable, and has stable performance. The relative sliding between the inner and outer components provides the watchband with appropriate elasticity, allowing it to better conform to the user's wrist movements and improving wearing comfort. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the inner core of the elastic metal watch strap in this utility model; Figure 2 This is a schematic diagram of the outer casing of the elastic metal watch strap in this utility model; Figure 3 This is a schematic diagram of the elastic metal watch strap in this utility model.

[0017] In the picture: 1-Inner core; 2-Outer shell; 3-Elastic metal wire; 4-Continuous clamping platform. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Example 1: An elastic metal watch strap includes an inner core and an outer shell, wherein the outer shell is sleeved on the outside of the inner core; both the inner core and the outer shell are sheet-like structures formed by winding elastic thread along their axial direction; the outer surface of the inner core is provided with a first limiting structure, and the inner surface of the outer shell is provided with a second limiting structure that cooperates with the first limiting structure; the first limiting structure and the second limiting structure engage with each other to allow the inner core and the outer shell to slide relative to each other along their axial direction within a predetermined stroke, and to restrict the movement of the inner core and the outer shell beyond the predetermined stroke.

[0022] The aforementioned structure of the elastic watchband in this application utilizes an inner and outer layer formed by the winding of elastic linear bodies, creating an integral, interlocking limiting structure. This eliminates the need for traditional independent parts such as springs and pins, greatly simplifying the overall structure, reducing manufacturing costs and assembly difficulty. The simplified structure is easy to manufacture. Through the direct interlocking and sliding limiting of the inner and outer limiting structures, the maximum extension and contraction of the watchband is effectively constrained, preventing permanent deformation or structural damage caused by excessive stretching. Compared to existing structures, this design is more robust, durable, and has stable performance. The relative sliding between the inner and outer components provides the watchband with appropriate elasticity, allowing it to better conform to the user's wrist movements and improving wearing comfort.

[0023] The first and second limiting structures are continuous clamping platforms integrally formed on both sides along the length of the sheet-like structure. Using an automated winding device, a continuous elastic metal wire 3 can be tightly arranged with a preset pitch and tension to form a flat sheet-like structure with a specific width and thickness.

[0024] The first limiting structure is disposed along the width direction of the inner core. In this embodiment, the first limiting structure is manifested as a pair of continuous locking platforms extending along the length direction of the inner core 1, i.e. Figure 1 The first limiting part is shown. The first limiting part protrudes outward from the side of the inner core 1, forming an edge similar to a guide rail. Since the first limiting part is formed by bending the elastic metal wire 3 itself during the winding process, it forms a seamless integrated structure with the main body of the inner core 1, eliminating the need for subsequent welding or assembly, thus possessing high structural strength and a simplified process.

[0025] The second limiting structure is arranged along the width direction of the outer shell. The outer shell 2 is also formed by tightly winding elastic metal wire 3, and its shape is a hollow tubular structure with a flat rectangular cross-section. The size of its internal cavity matches the outer contour of the inner core 1. Corresponding to the inner core 1, a second limiting structure is also integrally formed on both sides of the inner surface of the outer shell 2. The second limiting structure is used to cooperate with the first limiting structure on the inner core 1. In this embodiment, the second limiting structure is manifested as another pair of continuous locking platforms that are recessed or protruding inward and match the limiting part 4 on the inner core 1. This pair of inner second limiting structures constitutes a pair of internal grooves or guide rails, the shape and size of which can just accommodate and constrain the first limiting structure on the outer side of the inner core 1. Similarly, the second limiting structure of the outer shell 2 is also integrally formed during the winding process.

[0026] The inner core and outer shell are formed by winding the same elastic metal wire. During manufacturing, a sufficiently long elastic wire is taken, one end is fixed, and then arranged (preferably wound) along a first direction (e.g., from left to right) to form the inner core 1. During this process, a first limiting structure is also integrally formed on both sides of the outer surface of the inner core 1.

[0027] When the inner core 1 reaches the predetermined length, the elastic linear body is not cut off. Instead, at the far end of the inner core 1, the path of the linear body is reversed by 180 degrees through a path guiding device or mold, forming a U-shaped seamless connection part.

[0028] Subsequently, the arrangement continues in the opposite direction to the first direction (e.g., from right to left), and this arrangement path wraps around the outside of the already formed inner core 1. During the reverse arrangement process, an outer shell 2 for wrapping the inner core 1 is integrally formed, and a second limiting structure that engages with the first limiting structure of the inner core 1 is formed on the inner surface of the outer shell 2.

[0029] Finally, when the length of the outer casing 2 matches that of the inner core 1, the elastic thread is cut to obtain an elastic watch strap segment that is open at one end and seamlessly connected at the other end via the fold-over connection 5. In this structure, the inner core 1 and the outer casing 2 are naturally integrated at the fold-over connection 5, without any seams or connectors.

[0030] This integrated manufacturing method has the following advantages: First, it fundamentally eliminates the connection problem between the inner core 1 and the outer shell 2 at one end, thereby maximizing the structural strength and reliability of that end; Second, the entire manufacturing process can be completed continuously by one machine, with a high degree of automation, which further improves production efficiency; Third, due to the reduction in the number of parts and connection steps, the overall integrity and aesthetics of the product are also enhanced.

[0031] The inner core is made of a single elastic metal wire, and the outer shell is made of another elastic metal wire. The ends of the inner core and the outer shell are fixed by connectors and latches.

[0032] The method includes the following steps: Step one, specifically, prepare an elastic metal wire 3 that meets the design requirements, and tightly wind the elastic metal wire 3 axially on a mandrel or mold using an automated winding device to form a sheet-like inner core 1. During the winding process, by controlling the path of the metal wire or the shape of the mold, an outwardly protruding first limiting structure, i.e., a continuous clamping platform, is integrally formed on both sides of the outer surface of the inner core 1, thereby obtaining a complete inner core 1 with an outer guide rail.

[0033] Step two: Using the inner core 1 prepared in the previous step as a core mold, the winding process is initiated, and another (or the same) elastic metal wire 3 is directly wound around the outside of the inner core 1. During the winding process to form the outer shell 2, through precise path control, the metal wire forms an inward second limiting structure that matches the first limiting structure of the inner core 1 during winding. Thus, while the outer shell 2 is being manufactured, its internal second limiting structure engages with the external first limiting structure of the inner core 1. As winding progresses, the outer shell 2 gradually takes shape and completely encloses the inner core 1, ultimately forming a complete watch strap segment with sliding fit between the inner and outer layers.

[0034] This manufacturing method completes the fitting and engagement simultaneously with the formation of the outer component, avoiding secondary assembly of the already formed component, thereby simplifying the process and ensuring good fit accuracy between the limiting structures.

[0035] The elastic linear body is an elastic metal wire. As a preferred embodiment, the elastic linear body is an elastic metal wire 3 with good elasticity and mechanical strength, and its material includes, but is not limited to, stainless steel wire, titanium alloy wire, or shape memory alloy wire.

[0036] A watch comprising the aforementioned elastic metal strap.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A flexible metal watch strap, characterized in that: Includes the inner core and the outer shell, of which; The outer shell is fitted over the outer part of the inner core; Both the inner core and the outer shell are sheet-like structures formed by winding elastic linear bodies along their axial direction; The outer surface of the inner core is provided with a first limiting structure, and the inner surface of the outer shell is provided with a second limiting structure that cooperates with the first limiting structure. The first limiting structure engages with the second limiting structure to allow the inner core and the outer shell to slide relative to each other along their axial direction within a predetermined stroke, and to limit the movement of the inner core and the outer shell beyond the predetermined stroke.

2. The elastic metal watch strap according to claim 1, characterized in that: The first limiting structure and the second limiting structure are continuous card platforms integrally formed on both sides along the length direction of the sheet-like structure.

3. The elastic metal watch strap according to claim 2, characterized in that: The first limiting structure is provided along the width direction of the inner core.

4. The elastic metal watch strap according to claim 2, characterized in that: The second limiting structure is provided along the width direction of the outer shell.

5. The elastic metal watch strap according to claim 1, characterized in that: The inner core and outer shell are made of the same elastic metal wire wound together.

6. The elastic metal watch strap according to claim 1, characterized in that: The inner core is made of a single elastic metal wire, and the outer shell is made of another elastic metal wire. The ends of the inner core and the outer shell are fixed by connectors and latches.

7. The elastic metal watch strap according to claim 1, characterized in that: The elastic linear body is an elastic metal wire.

8. A watch, characterized in that: Includes an elastic metal watch strap according to any one of claims 1-7.

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