A method for threading a badminton racket and a threading machine device with four sets of fixed clamps

Abstract

The application relates to a threading method of a badminton racket and a threading machine device with four sets of fixed clamps, and belongs to the innovative design of the threading method and the threading machine device of sports goods badminton rackets and tennis rackets. The threading of the racket is first carried out according to the required poundage, the whole racket vertical line is pulled and knotted, the length of the required horizontal thread is measured, then the horizontal thread is started to be pulled from the middle part of the racket frame, the two heads of the thread are respectively passed through the threading holes and are alternately threaded with the vertical line, the thread is pulled according to the required poundage, the two sections of the thread after the starting middle part are respectively pulled towards the racket head and the racket pole, the horizontal thread is pulled one by one, the pulling of each thread is completed by using two sets of clamps each time, until the whole racket horizontal thread is pulled and knotted (the thread from the racket head to the racket pole is the vertical line, and the thread perpendicular to the vertical line is the horizontal thread), the threading method needs to be configured with a threading machine with four sets of clamp systems, the thread is fixed by using the clamps according to the threading requirement, and the whole racket thread is pulled, the threading method can guarantee that the damage of the thread is minimized during the threading process, the threading machine with four clamps is adopted, four sets of independent clamps are arranged, the thread can be fixed by using the clamps according to the threading process, the threading operation speed is improved, the friction caused by the frequent sliding of the clamps is reduced, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This invention relates to a stringing method for badminton and tennis rackets, and a stringing machine device with four sets of string clamps. Specifically, it relates to a stringing method for badminton and tennis rackets, which involves starting the stringing process from the stringing hole in the middle of the horizontal string. The string is split into two parts: one part is threaded sequentially towards the racket head, and the other part is threaded sequentially towards the racket shaft. The strings are then tightened according to the tension, and finally knotted to complete the stringing of the entire racket horizontal string. Each string requires two sets of string clamps to secure it, so four sets of string clamps are needed to complete the racket stringing. Background Technology

[0002] The most common stringing methods for badminton and tennis rackets are the 4-knot and 2-knot methods. Both methods involve first threading the vertical strings, then the horizontal strings. The 4-knot method starts at the T-joint of the racket shaft and threades the horizontal strings one by one towards the head. Therefore, only two sets of string clips are needed. The 2-knot method separates the long and short sides of the horizontal strings. It starts at the end of the last vertical string and threades the horizontal strings one by one from the bottom of the racket towards the head. Regardless of the method, the strings inevitably pass through the holes multiple times from the bottom of the shaft towards the head. Each pass causes wear and tear on the strings, scratching the protective layer. Passing through double holes can also cause twisting, tangling, and bending of the strings. Damaged strings are more susceptible to damage during racket shots. Force can easily cause the strings to break. The method of this invention is a 4-knot method. The vertical strings are independent and are knotted after being threaded. The horizontal strings are also independent and start from the middle of the racket. After starting, the strings are roughly divided into two segments, minimizing the length of string threading. At the same time, starting from the middle minimizes the number of times the strings pass through the racket eye. Moreover, the middle part of the racket towards the head is the sweet spot, which is the best part to hit the ball. Existing methods thread the strings into the sweet spot last and start from the middle with almost new strings to minimize damage to the sweet spot, better utilize the performance of the strings, extend the life of the strings, and, more importantly, enhance the user experience. Because the strings are divided into two segments starting from the middle, the strings are shortened by almost half or more each time they are threaded, greatly reducing the length of string threading and increasing the threading speed. At the same time, the four-clamp method is adopted for stringing. Each time the racket clamp is flipped, one string can be pre-threaded for each of the two clamps. The stringing machine can pull one pre-threaded string for each of the two clamps. That is, each time the racket clamp is flipped, two strings can be pre-threaded and tensioned for two strings. Compared with the two-clamp method, which can only pre-thread one string and tighten one string with tension each time the clamp is flipped, the stringing operation speed is greatly improved.

[0003] This invention employs a four-clamp method for threading horizontal strings. Each time the threading machine clamps are flipped, one horizontal string can be pre-threaded for each of the two string segments. The threading machine can then pull one pre-threaded string for each segment. In other words, each time the clamps are flipped, two horizontal strings can be pre-threaded and two horizontal strings can be tightened. Compared to the two-clamp threading method, which can only pre-thread one string and tighten one horizontal string per flip, this greatly improves the speed and efficiency of the threading operation. In addition, after the threading machine tightens the ball string, since the four clamps can be operated independently, the nearest clamp can be selected to clamp the ball string, greatly reducing the slippage of the clamps, reducing friction, extending the service life of the equipment, and improving operational efficiency.

[0004] Because the stringing method of this invention ensures that the strings used in the sweet spot of the racket are almost as good as new, the damage to the strings is minimized, and the lifespan of the strings is increased, which also reduces the waste of social resources. Summary of the Invention

[0005] Badminton and tennis racket stringing method starting from the middle of the cross strings and the use of four-string clamp stringing machine.

[0006] This invention provides a stringing method for badminton and tennis rackets, as well as an innovative stringing method using a four-string racket stringing machine. This method improves the stringing speed, shortens the string pulling distance during the stringing process, and ensures that the sweet spot strings of the racket have fewer holes during the stringing process, thus reducing damage to the strings and guaranteeing the performance of the sweet spot strings.

[0007] To string a racket, first independently complete the vertical strings and tie a knot. The vertical string runs from the racket head to the shaft, and the horizontal string runs perpendicular to it. After completing the vertical strings, calculate the required string length. Starting with the string hole in the middle of the racket frame, thread both ends of the string through the hole, crossing them over the vertical string. Thread the strings through the corresponding holes on either side, pulling both ends evenly to tighten them. Then, insert both ends of the string into the stringing machine's tension head and tighten them until the desired tension is reached. Clamp the strings near the racket frame with the nearest string clamps, release the string ends, and then apply additional tension to each string individually. After each string reaches the set tension, loosen the corresponding string clamp to allow for fuller string tension, then clamp the clamps again. Once both strings are securely clamped, the cross strings are now complete. Thread each string sequentially through the cross string holes on the racket, one towards the racket head and the other towards the racket shaft, until all cross strings are threaded. Finally, tie a knot at the nearest point to finish stringing the racket.

[0008] The four-string racket stringing machine has two tracks installed at the bottom of the operating table. Each track has two sets of string clamps, including gravity clamps and toothed clamps. Each set of string clamps can slide and rotate independently. Each set of string clamps can fix the string at the required position and tighten it. Together with the stringing head, it completes the stringing process. Attached Figure Description

[0009] Figure 1 A schematic diagram of the overall structure of the four-wire clamp threading machine for the invention. Figure 2 A top view illustrating the installation of four wire clamps on a threading machine. Figure 3 This is a schematic diagram of the threading method of the present invention. Detailed Implementation

[0010] The stringing method and four-string clamp stringing machine of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the present invention, using badminton racket stringing as an example, and not all embodiments. The four-string clamp stringing machine is also described using a badminton racket stringing machine as an example. In the art, the use of four-string clamps to string badminton rackets and tennis rackets, starting from the horizontal line in the middle of the racket and stringing the rackets one by one to both sides, all fall within the protection scope of the present invention.

[0011] Example 1, Reference Figure 1 Figure 2 As shown, this invention uses a badminton racket stringing machine as an example. A badminton racket stringing machine generally consists of three parts: a racket clamping system, a tensioning and stringing system, and an operation panel system. This invention pertains to the racket clamping system, adding a string clamping system to each guide rail. The stringing machine of this invention is equipped with four string clamping systems. Figure 1 Figure 2 As shown, clamps A and C belong to one track, and clamps B and D belong to another track. Each clamp can be independently slid and rotated to a suitable position to fix the ball clamp line.

[0012] Example 2, reference Figure 1 As shown, to string a tennis racket, you need to replace the U-shaped clip and synchronous clamping system with the appropriate ones. Secure the racket on the machine and pull down the string to the required tension to complete the stringing process.

[0013] Example 3, reference Figure 3As shown, the use of the stringing machine and stringing method of this invention is illustrated using the most common 76-hole badminton racket as an example. The vertical string runs from the racket head to the shaft, and the horizontal string runs intersecting the vertical string. Calculate the length of the vertical string (5-5.5 meters), and string it according to the required tension. Tie a knot. Then calculate the length of the horizontal string (4.5-5 meters). String the two ends of the horizontal string through the stringing holes in the middle of the racket frame, intersecting the vertical string. Taking a 76-hole badminton racket as an example: a 76-hole racket has a total of 21 horizontal strings. String the horizontal string through the 11th and 12th horizontal string holes counting down from the racket head, or through the last vertical string hole on the racket frame. With the 6th and 7th wires from the bottom hole on the racket head as the center, thread the wires through each other as shown in the figure. Wire A goes through the vertical wire alternately from A1 to a1, and wire B goes through the vertical wire alternately from B1 to b1. Pull the two wires evenly until both ends are taut. Thread both wires A and B simultaneously with the threading machine (note that the two wires must be arranged vertically into the clamps). Pre-pull the wires according to the set tension for the horizontal wires. After pulling, clamps B and D clamp the wires simultaneously. Then release the tension of the drag clamps. Then, individually pull wires A and B at the set tension. Release the clamps B and D to allow each wire to reach the set tension. Then clamp the clamps B and D and release the tension. The initial wire pulling is complete.

[0014] Thread string A through hole a2, alternating between the vertical strings to hole A2. Thread string B through hole b2, alternating between the vertical strings to hole B2. Tighten the strings evenly by hand, flip the clamps, and clamp the two strings onto the machine clamps. After reaching the set tension, release clamps BD to allow for fuller string tension. Then clamp clamps AC. Repeat this process until all the strings are threaded through the horizontal strings of the racket frame, and finally tie a knot to finish.

Claims

1. A stringing method for badminton and tennis rackets, wherein the horizontal strings of the racket are strung starting from the stringing hole in the middle of the racket's horizontal direction, and the strings are divided into two parts. One part is strung sequentially from the starting string toward the racket head, and the other part is strung sequentially from the starting string toward the racket shaft. The direction from the racket head to the racket shaft is the vertical line, and the horizontal lines are strung perpendicularly to it.

2. A threading machine device with 4 sets of independent fixed wire clamps. The threading machine needs to be equipped with 2 sliding tracks, each track is equipped with 2 sets of wire clamps, for a total of 4 sets of wire clamps that can slide and rotate 360 ​​degrees. Existing threading machines with 2 sets of wire clamps can be modified by adding 2 sets of wire clamps.

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