TW403671B - Racket string - Google Patents

Abstract

This invention provides a kind of racket string which produces the interconnecting relationship in both longitudinal and transverse direction of the racket string through the interconnecting envelop layer and the hook layer. Even the racket string is worn, the damage could be inhibited without amplification. The force on the racket string is still shared by a plurity of ring to avoid producing the stress concentrating point. Therefore, the strength, durability, and life of the racket string can be increased.

Description

40367J V. Description of the invention (1) [Technical Field] The present invention is to increase the strength and resistance [previous technology] The racket strings are placed on the racket and are in contact with the ball at the same time. The ability to control the path and the racket ball constitutes. Existing racket-like, controllable, and part-made racket heartwood 9 1 Heartwood 9 1, 9 1 provides racket 2 protection against abrasion 9 1, the fourth type, however, now 9 is worn on the racket string line 9 String friction, shown in Figure 3, breaks the mission. Related to a racket string. In particular, after the racket frame is determined by the weaving method, the racket will apply ball vibration and ball speed. The heavy chord line, which depends on the ball's ability to hit the ball, is completely subject to the power of the high shot. When the racket string force is stretched, it can react to the ball. For example, the ball string can determine the elasticity of the racket and the strings of the racket strings. Because of the variety of rackets that are easy to make, the first type covers the core material 9 The main material 9 1 Most of the strings have been pulled by the ball to contact the racket strings 9 t Layer 1 outer strength, the first main 9 tight and shifting line 9 force, such as racket 9 2 * n. -Ir sx Μ, with the three fibers have the same tension, the guarantee of the knot should correspond to the 8th string, the first guarantee is to The torsion-like stress causes the sheath structure to be different from the 19 two kinds of sheaths. One fiber is turned into a shortcoming. When hitting the horizontal 9 3, the demand is changed and the durability is shown in the figure. 3 3 and dimensional beam heartwood, that is, ball instant chord grinding The deformation has a solid, and the heartwood 91 is composed of the heartwood coating 9. Racket string line 'horizontal and vertical, as in the first case

Page 4 ^ 103671- V. Description of the invention (2) Therefore, there is a racket string 9 as shown in FIG. 12, which is attached to the heartwood 9 1 and is provided with a plurality of transverse fibers 9 3 1 and longitudinal fibers 9 3 2 A cross-woven protective layer 9 3. Although this protective layer 9 3 can increase the durability of the racket thread, the fibers are still not related to each other. Therefore, after the local fibers are abraded and broken, other fibers cannot be pressed. When the broken part is fixed or fixed, the broken fiber is retracted and loses its effect due to the tension of the racket threading or hitting the ball, and the heartwood 9 4 is exposed. As shown in FIG. 14, because the heartwood 9 4 is not abrasion-resistant, the heartwood After the 9 4 is exposed, the racket string 9 will soon break, so the service life of the racket string 9 is still quite limited. [Objective and Effect] The main purpose of the present invention is to solve the above-mentioned problems and provide a racket string. The sheath layer and the hook layer are interlocked, so that the racket string has a connection relationship in both the vertical and horizontal directions. The wire is subject to abrasion, and its connection relationship restricts the worn part in different directions, so that its damage can be restrained and cannot be expanded, so the strength and durability of the racket string can be increased.

403671 V. Description of the invention (3) The detailed description of the embodiments and the accompanying drawings have gained in-depth understanding. Of course, the present invention allows some differences in the arrangement of other parts * or parts, but the selected embodiment is described in detail in this specification and its structure is shown in the drawings. [Brief description of the drawings] The present invention will be described in detail with a preferred embodiment in conjunction with the drawings: FIG. 1 is a schematic plan view of the covering layer of the present invention, and FIG. 2 is a perspective view of the covering layer of the present invention on the hook layer Diagram 3 is a schematic plan view of a weaving plane of the present invention. Picture 4 is a perspective view of a first embodiment of the invention. Picture 5 is a perspective view of a second embodiment of the invention. Picture 6 is a perspective view of a third embodiment of the invention. It is a wear diagram of the first embodiment of the present invention. Fig. 8 is a perspective view of a conventional racket string. Fig. 9 is a perspective view of a conventional racket string. Fig. 10 is a perspective view of a third racket string. Figure 11 is a perspective view of the fourth racket string used conventionally. Figure 12 is a perspective view of the fifth racket string used conventionally. Figure 13 is a schematic diagram of wear of Figure 10 Figure 14 is shown in Figure 12 Wear diagram [Illustration of drawing number] (conventional part) Racket string 9 Heartwood 9 1 Cover layer 9 2 Protective layer 9 3

Page 6 403671 V. Description of the invention (4) Transverse fibers 9 3 1 Longitudinal fibers 9 3 2 (part of the present invention) Machine 1 Convex 1 1

Fiber bundle 2 fiber 2 A ring 2 1 jacket layer 3 hook layer 4

Covering layer 5 Heartwood 6, 6 A Sequence a, b, c, d [Detailed description of the embodiment] Please refer to Figs. 1 to 7, the figure shows the structure of the embodiment of the present invention for selection. This is for illustration only. Its use in patent applications is not limited by this structure. Please refer to FIGS. 1 to 3. The present invention provides a racket string. The racket string is made by weaving a fiber bundle 2 around a plurality of projections 1 1 provided on a machine 1, and the fiber bundle 2 In this embodiment, it is a polyester fiber, and it forms a plurality of annular rings 2 1 by the convex portions 1 1, that is, the fiber bundle 2 is wound around each convex in the order a, b, c, and d, respectively. The part 1 1 forms a plurality of juxtaposed rings 2 1. This juxtaposed ring 21 is a set of layers 3, and then the fiber bundle 2 is wound around each convex part 1 1 to form a second layer of juxtaposed rings 2 1. The ring 2 1 is a hook layer 4. Use the convex portion 11 of the machine 1 or a hook portion (not shown) to pick out the rings of the cover layer 3 respectively, and put the hook layer 4 on the hook layer 4. 11 1 only the hook layer 4 is left, and then the fiber bundle 2 is wound around each convex portion 11 to form a plurality of side-by-side loops 2 1. The side-by-side loop 2 1 is the hook layer 4, and the aforementioned hook layer 4 is used as a sleeve. Layer 3, then pick each ring 2 of layer 3

Page 7 403671 V. Description of the invention (5) The loop 2 1 which is looped over the hook layer 4 can be obtained by repeating the formation of a long line as shown in Figure 4, and the diameter of the long line is less than 3 Mm, and the racket string line is covered with more than one resin coating layer 5; as shown in FIG. 5 is a second embodiment of the present invention, the racket string line is covered with a coating layer 5 outside, and the hollow part is passed through There is a heartwood 6, whose corewood 6 provides the main strength, and the woven part provides a better feel when hitting the ball. As shown in FIG. 6, this is a third embodiment of the present invention. The racket strings are covered with a coating layer. 5, the hollow part is provided with a heartwood 6 A composed of fiber bundles. According to the present invention, the rings 21 of each layer of the fiber bundle 2 are set together, so that the racket strings are connected longitudinally and laterally, and the fiber rings 2 are pressed by the ring 2 of the set, as shown in FIG. 7. It is shown that the ring 21 can be restrained in different directions. Even if the string of the racket is worn, the worn fiber 2 A is still pressed by the other ring 21 and the broken fiber 2 A is still in phase with other fibers. The buckle forms a knot-like effect at the break, but still maintains the force of tightening the string of the racket without losing its effect, and can only wear out a gap, so that the repetitive stress generated by the hit is applied to the string of the racket. As a whole, the wear of the racket strings is caused by the friction between the horizontal and vertical racket strings, and the position of the racket hitting the ball is not fixed at a certain point, so the top and bottom of the ring 21 can overlap. It can also avoid abrasion and breakage, that is, increase the density of the string of the racket by the ring 2 of the set. In terms of transverse direction of the racket string, the cover layer 3 and the hook layer 4 are connected in a loop-like manner, so that after the local ring 21 is broken, the racket is subjected to a tensile force (the ball

Page 8 403671 V. Description of the invention (6) Hitting), then one of the fractures will be worn again, and it is not easy to interlock. If Ben 2 wears out the inner layer, the fiber will be bundled after the fat collection to make the fiber relationship. Therefore, of course, weaving rackets can not be worn without weaving and weaving. The two knots that break between the two can only be worn out. The notched bundle 2 of the invention is still not easy to heartwood. 6 The string of the invention is matched with the material. The use of it can make the fiber 2 1 adjacent to the inside and thus the fiber, because the fiber can be kept in the inside, and the fiber can be braided. The fiber A can be made closer to the sheath. Heavy-wearing heartwood 6 Out of the outer layer, there can be many materials and racket weaving form 2 bundles 2 knots are not easy to take off 3 ring method re-splitting 6 exposed racket string stacking position and cover, fiber bundles take into account the resistance to the embodiment It can be a string group, etc. If it is out of the set, it is more out, and 2 1 is open, and resistant, that is, the racket 2 is not fixed, such as nylon. Annularity makes the string external The same with the available, multi-layer fiber 1 phase is better for tackifying the other 2 1 to increase the strength of a certain layer of fiber ester fiber like a position ball, without binding 2 as the ring 2 1 layer layer. At the point of the fiber bundle, knots are missing. The fiber rack or the contracted heartwood impregnated tree, so that the fiber binding force grinding effect is summed up. According to the racket strings of the present invention, the racket strings 3 and the hook layer 4 are interlocked, so that the racket strings can be produced longitudinally and laterally The connection relationship, even if the racket string is worn, its damage can be restrained and cannot be expanded, so that the force on the racket string is shared by the majority of the rings 21 to avoid stress concentration points, which can increase the strength of the racket string. , Durability and service life of racket strings. The disclosure of the embodiments described above is used to illustrate the present invention, and is not used to

Page 9 403671 V. Description of the invention (7) The invention is limited. Therefore, any change in value or replacement of equivalent components should still belong to the scope of the invention. From the above detailed description, those skilled in the art can understand that the present invention can indeed achieve the aforementioned purpose, and has indeed complied with the provisions of the Patent Law, and filed a patent application.

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Claims (1)

403671 VI. Scope of patent application 1 * A racket string, which forms a plurality of side-by-side rings with a fiber in order, and this side-by-side ring is a set of layers, and the fiber sequentially forms a second-layer, most-side-by-side ring. This side-by-side loop is a hook layer, and the ring of the sheath layer is sleeved on the hook layer. The fiber then forms a plurality of side-by-side rings in sequence. The side-by-side ring is the hook layer, and the aforementioned hook layer is the sheath layer. The loop of the jacket layer is sleeved on the hook layer, so that a long line is repeatedly formed, and the diameter of the long line is less than 3 mm. 2. The racket string according to item 1 of the scope of the patent application, wherein the fibers of the racket string are woven around most of the protrusions provided on a machine. 3. The racket string according to item 1 of the scope of patent application, wherein a heartwood is inserted through the racket string. 4. The racket string according to item 3 of the scope of patent application, wherein the heartwood is composed of a fiber bundle. 5. The racket string according to item 1 of the scope of patent application, wherein the racket string is covered with a coating layer. ‘6. The racket string according to item 1 of the scope of the patent application, wherein the fiber of the racket string is impregnated with resin. 7. The racket string according to item 1 of the scope of the patent application, wherein the fiber of the racket string is a fiber east. 8. The racket string according to item 1 of the patent application scope, wherein the fiber material of the racket string is polyester fiber. 9. The racket string according to item 1 of the scope of patent application, wherein the fiber material of the racket string is nylon. 1 0 · The racket string according to item 1 of the scope of patent application, wherein Page 11 Page 12