Elastic line applied to watch buckle and watch buckle thereof

Abstract

The utility model provides an elastic line applied to a watch buckle, which relates to the technical field of watch accessories, the elastic line applied to the watch buckle is a serpentine spring, the cross section of the elastic line is rectangular, the long side of the rectangular cross section of the elastic line is vertical to the plane where the serpentine spring is located, and the short side of the rectangular cross section of the elastic line is parallel to the plane where the serpentine spring is located. The length of the long side of the rectangular cross section of the snapping line is marked as A; in the watch buckle applied by the snapping line, the width of the edge gap between the inner wall of the shell of the watch buckle and the contact surfaces at the two ends of the snapping line is marked as B and Agt; and B, by applying the scheme of the invention, the problems that the snapping line is easy to snap away during installation and is used for clamping during use can be solved, and the characteristics of convenience in installation and stability in use are achieved.

Description

Technical Field

[0001] This invention relates to the field of watch fittings technology, specifically to a spring thread applied to a watch buckle and the buckle thereof. Background Technology

[0002] A watch clasp is a structure used to connect the two sides of a watch strap. It typically needs to be in two states: loose and tight. In the loose state, it allows the hand to pass through, and after being put on, it is adjusted to the tight state. In a spring-loaded clasp, the clasp wing mechanism and the spring mechanism engage to achieve the tight state of the clasp.

[0003] In existing spring-loaded watch clasps, the spring supporting the movement of the spring mechanism is a cylindrical spring. While this design can support the spring, its drawback is that the diameter of the cylindrical spring is relatively large. When designing the spring size, the spring diameter must be taken into account. Generally, the thickness of the spring needs to be greater than the spring diameter, or sufficient space must be provided for the spring diameter. This limits the lower limit of the thickness of the spring or the overall clasp when manufacturing the spring-loaded watch clasp. The clasp or spring with this design will be relatively bulky and affect the aesthetics.

[0004] The closest prior art to this application is a concealed spring-loaded watch buckle published under patent number CN221864913U. This application is a further improvement based on the closest prior art and in light of actual production needs. During the buckle installation process, the original buckle's spring-loaded section was circular, which caused two problems during installation and use:

[0005] Question 1: During installation, the original circular cross-section of the snap-on cord has a theoretically tangent point in contact with the inner wall of the snap-on cord (although it will compress the snap-on cord slightly, since the materials are all metal, it can be simply regarded as contacting the tangent point for force). Since the force points are very limited, and the snap-on cord needs to be compressed to a certain extent during installation, the length of the snap-on cord is larger than the force points. Therefore, it is easy for the snap-on cord to fly off during installation, which increases the difficulty of buckle production and is not conducive to production efficiency.

[0006] Question 2: In the original application, because the cross-section of the spring wire is circular, the gap between the spring mechanism and the support plate is 0.2 mm, and the diameter of the spring wire cross-section is 0.3 mm. Although the diameter is larger than the gap, because the cross-section of the spring wire is circular, the force point at the contact point between the spring wire and the spring plate is very small and easy to slip. As a result, part of the arc of the spring wire cross-section will enter the gap between the support plate and the spring mechanism. Furthermore, due to mechanical errors, with repeated use of the watch clasp, the spring wire often gets stuck in the gap, which will cause damage to the watch clasp and result in instability in use. Summary of the Invention

[0007] This invention proposes a spring wire for watch buckles and a watch buckle thereof, which can solve the problems of the spring wire easily flying off during installation and the spring wire being used to lock in place during use. It has the characteristics of convenient installation and stable use.

[0008] The technical solution of the present invention is as follows:

[0009] A spring wire for use in watch clasps, wherein the spring wire is a serpentine spring and the cross-section of the spring wire is rectangular.

[0010] As a further optimization of this solution, the long side of the rectangular cross-section of the elastic line is perpendicular to the plane where the serpentine spring is located.

[0011] As a further optimization of this solution, the shorter side of the rectangular cross-section of the elastic line is parallel to the plane where the serpentine spring is located.

[0012] As a further optimization of this solution, the length of the long side of the rectangular cross-section of the elastic line is denoted as A; in the watch buckle to which the elastic line is applied, the width of the gap between the inner wall of the watch buckle shell and the contact surfaces at both ends of the elastic line is denoted as B, where A>B.

[0013] As a further optimization of this solution, the thickness diameter of the elastic wire is greater than 0.1 mm.

[0014] As a further optimization of this solution, the thickness diameter of the elastic wire is greater than 0.2 mm.

[0015] A concealed spring-loaded watch clasp for connecting a watch strap includes a clasp frame, a spring mechanism, and a wing mechanism. The end of the spring mechanism extends beyond the side of the clasp frame, and the end of the clasp frame is axially connected to one end of the wing mechanism. The other end of the wing mechanism is connected to the watch strap. The clasp also includes a spring. The spring mechanism is elasticated by the spring. An engaging structure is provided between the wing mechanism and the spring mechanism. In the normal state of the spring, the wing mechanism and the spring mechanism are engaged. In the compressed state of the spring, the wing mechanism and the spring mechanism are disengaged. The spring is a sheet-like structure; without considering the diameter of the spring wire, the spring is a planar structure. The spring is a serpentine spring, and its cross-section is rectangular.

[0016] As a further optimization of this solution, the long side of the rectangular cross-section of the elastic wire is perpendicular to the plane where the serpentine spring is located, and the short side of the rectangular cross-section of the elastic wire is parallel to the plane where the serpentine spring is located.

[0017] As a further optimization of this solution, the thickness of the elastic wire is greater than 0.2 mm.

[0018] As a further optimization of this solution, the thickness of the spring wire is 0.5 mm.

[0019] As a further optimization of this solution, the spring mechanism includes a first spring and a second spring, with the spring line disposed between the first spring and the second spring. The outer sides of the first spring and the second spring protrude from both sides of the buckle frame in the normal state of the spring line. The inner sides of the first spring and the second spring are provided with a locking mechanism adapted to the buckle wing mechanism.

[0020] As a further optimization of this solution, a support piece is also included. The spring mechanism is disposed on the lower side of the buckle frame. The spring mechanism is sandwiched between the support piece and the buckle frame. The support piece is fixedly connected to the buckle frame. A locking hole is provided in the middle of the buckle frame. The locking hole is a through hole. The spring mechanism and the buckle wing are engaged through the locking hole.

[0021] As a further optimization of this solution, the upper side of the buckle frame is provided with a buckle groove that matches the shape of the buckle wing mechanism, and the buckle wing mechanism can be fastened into the buckle groove.

[0022] As a further optimization of this solution, the buckle mechanism includes a first buckle and a second buckle. The outer ends of the two buckles are axially connected to both ends of the buckle frame. After the first buckle and the second buckle are closed, the inner ends of the two buckles are engaged with the spring mechanism. The inner ends of the first buckle and the second buckle are also provided with a watch strap connection structure, which is used to connect the tail of the watch strap.

[0023] As a further optimization of this solution, the inner side of the spring mechanism is provided with a hook that flips up toward the buckle mechanism, and the inner end of the buckle mechanism is provided with a buckle opening, the hook and the buckle opening forming an engaging structure.

[0024] As a further optimization of this solution, the inner sides of the first and second springs are provided with hooks offset from each other, and the spring line is set at a position where the first and second springs are opposite each other and neither has a hook.

[0025] As a further optimization of this solution, the buckle wing mechanism and the buckle frame are axially connected by means of a stud pin.

[0026] The working principle and beneficial effects of this invention are as follows:

[0027] When in use, because the string is rectangular, the contact area between the string and the elastic mechanism is larger, which makes the force on both sides of the support more stable after the string is subjected to pressure during installation or use. Therefore, the string is less likely to fly off during installation, which can reduce the installation error rate and the time for picking up the string, thereby increasing production efficiency.

[0028] Because the cross-section of the spring line has been changed to a rectangle and its thickness is greater than the gap between the spring and the support plate, it can be ensured that even if the contact surface between the spring line and the spring plate is slightly displaced during use, the spring line will not slip into the gap, thus increasing the service life of the spring clip and ensuring its stability. Attached Figure Description

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] Figure 1 This is a schematic diagram of a snap line in the prior art;

[0031] Figure 2 A schematic diagram illustrating the installation of a snap-on cord in a watch buckle using existing technology;

[0032] Figure 3 This is a schematic diagram of the dashed lines in this application.

[0033] Figure 4 This is a schematic diagram of the interaction between the snap line and the spring mechanism in this application. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1, as per the appendix to the instruction manual Figure 2 As shown, a spring clip used in watch clasps is a serpentine spring with a rectangular cross-section. Examples of spring clips used in existing watch clasps are shown in the attached figure. Figure 1 and 2 As shown, in Figure 2 In the current system, when a circular cross-section wire is placed between the spring clips, it easily springs upwards. Ideally, during installation, the wire should only be subjected to force along the front-to-back direction, compressing it to a certain extent. However, in reality, due to manufacturing errors in the wire and unavoidable deviations in the direction of force applied by the installer, the wire easily springs away during the compression installation process. By changing the cross-section to a rectangle, the contact between the wire and the spring clip changes from a line to a surface, thus increasing the force application point of the wire and making the clasp more stable during installation.

[0036] As per the instruction manual Figure 3As shown, the long side of the rectangular cross-section of the spring is perpendicular to the plane of the serpentine spring, and the short side of the rectangular cross-section of the spring is parallel to the plane of the serpentine spring. This design ensures a more stable contact surface between the spring and the spring mechanism, and also ensures more stable force on the spring along the direction of use.

[0037] As per the instruction manual Figure 4 As shown, the length of the long side of the rectangular cross-section of the elastic cord is denoted as A; in the watch buckle to which the elastic cord is applied, the width of the gap between the inner wall of the buckle housing and the contact surfaces at both ends of the elastic cord is denoted as B, where A > B. This design ensures that the elastic cord will not get stuck in the gap of the watch buckle, thus increasing the stability of the watch buckle.

[0038] The thickness and diameter of the elastic wire are greater than 0.1 mm. The thickness and diameter of the elastic wire are greater than 0.2 mm.

[0039] Example 2: A concealed spring-loaded watch clasp for connecting a watch strap. The clasp includes a clasp frame, a spring mechanism, and a wing mechanism. The end of the spring mechanism extends beyond the side of the clasp frame. The end of the clasp frame is axially connected to one end of the wing mechanism, and the other end of the wing mechanism is connected to the watch strap. It also includes a spring. The spring mechanism is elasticated by the spring. A locking structure is provided between the wing mechanism and the spring mechanism. In the normal state of the spring, the wing mechanism and the spring mechanism are engaged. In the compressed state of the spring, the wing mechanism and the spring mechanism are disengaged. The spring is a sheet-like structure. Without considering the wire diameter, the spring is a planar structure. The spring is a serpentine spring with a rectangular cross-section. The long side of the rectangular cross-section is perpendicular to the plane of the serpentine spring, and the short side is parallel to the plane of the serpentine spring. The thickness of the spring is greater than 0.2 mm. The thickness of the spring is 0.5 mm. The spring mechanism includes a first spring and a second spring. The spring line is disposed between the first spring and the second spring. The outer sides of the first spring and the second spring protrude from both sides of the buckle frame in the normal state of the spring line. The inner sides of the first spring and the second spring are provided with a locking mechanism adapted to the buckle wing mechanism.

[0040] It also includes a support piece, and the spring-loaded mechanism is disposed on the lower side of the buckle frame. The spring-loaded mechanism is sandwiched between the support piece and the buckle frame. The support piece is fixedly connected to the buckle frame. The buckle frame has a locking hole in the middle, which is a through hole. The spring-loaded mechanism and the buckle wing engage through the locking hole. The upper side of the buckle frame has a buckle groove adapted to the shape of the buckle wing mechanism, and the buckle wing mechanism can be fastened into the buckle groove. The buckle wing mechanism includes a first buckle wing and a second buckle wing. The outer ends of the two buckle wing are axially connected to the two ends of the buckle frame. After the first buckle wing and the second buckle wing are closed, the inner ends of the two buckle wing engage with the spring-loaded mechanism. The inner ends of the first buckle wing and the second buckle wing are also provided with a watch strap connecting structure for connecting the end of the watch strap. The inner side of the spring-loaded mechanism is provided with a hook that flips up towards the buckle wing mechanism, and the inner end of the buckle wing mechanism is provided with a buckle opening. The hook and the buckle opening form an engaging structure. The first and second spring pieces have hooks offset on their inner sides, and the spring line is located at a position where the first and second spring pieces are opposite each other and neither has a hook. The buckle wing mechanism and the buckle frame are axially connected by a stud pin. Except for the cross-sectional shape and size of the spring line, the other features of this application are the same as those in the prior art document "CN221864913U" for a concealed spring line watch buckle.

[0041] This application is an improvement on the details in prior art document 1. Applying the solution of this application can greatly improve the efficiency of watch buckle assembly and the stability of use.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spring wire for use in watch clasps, wherein the spring wire is a serpentine spring, characterized in that, The cross-section of the chalk line is rectangular.

2. The spring thread for a watch buckle according to claim 1, characterized in that, The long side of the rectangular cross-section of the spring is perpendicular to the plane where the serpentine spring is located.

3. The spring thread for a watch buckle according to claim 1, characterized in that, The shorter side of the rectangular cross-section of the spring is parallel to the plane in which the serpentine spring is located.

4. The spring thread for a watch buckle according to claim 1, characterized in that, The length of the long side of the rectangular cross-section of the elastic cord is denoted as A; in the watch buckle to which the elastic cord is applied, the width of the gap between the inner wall of the buckle's outer shell and the contact surface at both ends of the elastic cord is denoted as B, where A>B.

5. The spring thread for a watch buckle according to claim 1, characterized in that, The diameter of the elastic wire is greater than 0.1 mm.

6. The spring thread for a watch buckle according to claim 1, characterized in that, The thickness and diameter of the elastic wire are greater than 0.2 mm.

7. A concealed snap fastener for connecting a watch strap, comprising a buckle frame, a spring mechanism, and a wing mechanism, wherein the end of the spring mechanism extends out of the side of the buckle frame, the end of the buckle frame is axially connected to one end of the wing mechanism, the other end of the wing mechanism is connected to the watch strap, and further comprising a snap fastener, wherein the spring mechanism is elastically provided by the snap fastener, and an engaging structure is provided between the wing mechanism and the spring mechanism; in the normal state of the snap fastener, the wing mechanism and the spring mechanism are engaged; in the compressed state of the snap fastener, the wing mechanism and the spring mechanism are disengaged; the snap fastener is a sheet-like structure, and when the diameter of the snap fastener wire is not considered, the snap fastener is a planar structure, characterized in that... The spring is a serpentine spring, and the cross-section of the spring is rectangular.

8. A concealed snap fastener according to claim 7, characterized in that, The long side of the rectangular cross-section of the elastic wire is perpendicular to the plane where the serpentine spring is located, and the short side of the rectangular cross-section of the elastic wire is parallel to the plane where the serpentine spring is located.

9. A concealed snap fastener according to claim 7, characterized in that, The thickness of the elastic wire is greater than 0.2 mm.

10. A concealed snap fastener according to claim 7, characterized in that, The thickness of the elastic wire is 0.5 mm.

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