FIELD OF THE INVENTION

The present invention relates to a racquet string structure with cutting marks which knits a mesh surface of a racket frame easily and quickly.

BACKGROUND OF THE INVENTION

Conventionally, a strip body for knitting a mesh surface in a racket frame is inserted and knitted in the racket frame manually by a worker or automatically by a stringing machine. However, when the strip body is manually inserted and knitted in the racket frame to form the mesh surface, the tighten strength of the mesh surface of the racket frame cannot be controlled at stable pulling force by manually pull the strip body. When the strip body is automatically inserted and knitted in the racket frame to form the mesh surface, the tighten strength of the mesh surface of the racket frame can be controlled at stable pulling force by pulling the strip body by ways of the stripping machine.

When knitting the mesh surface in the racket frame, a front ends of the strip body is inserted into the racket frame, and a rear end of the strip body is cut, tied, pound pulled, and knotted.

However, when inserting the strip body into the racket frame, its rear end interferes inserting operation so that its front end is pulled again to adjust tightness of the mesh surface, thus knitting the mesh surface troublesomely.

The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.

SUMMARY OF THE INVENTION

The primary object of the present invention is to provide a racquet string structure with cutting marks which includes a plurality of marked cut areas on which a color and at least one character or a pattern is printed so that the plurality of marked cut areas are cut into plural knitting sections precisely and easily, and a length of each single knitting part is adjusted based on using requirement so that the plural knitting sections are longitudinally and horizontally inserted into a racket frame to form a mesh surface inside the racket frame easily and quickly.

To obtain the above objective, a racquet string structure with cutting marks contains:

a string body and a plurality of remarked cut areas separately arranged on plural positions of the string body; wherein each marked cut area has a length which provides an identifiable cutting portion so that the string body is cut exactly and then is inserted into the racquet frame.

Preferably, each marked cut area is printed a color thereon.

Preferably, each marked cut area is marked by at least one character.

Preferably, each marked cut area is marked by pattern.

Preferably, each marked cut area is printed the color thereon by a printing machine in a coating process.

Preferably, the plural positions of the string body, where the plurality of marked cut areas are arranged, are determined based on a desired knitting size of the racquet frame.

Preferably, the plural positions of the string body, where the plurality of marked cut areas are arranged, are determined based on a desired knitting size of the knitting manner for knitting the racquet frame

Preferably, each marked cut area is printed the color thereon by a printing machine in a coating process.

Preferably, the string body is hollow.

Preferably, the string body is solid.

Preferably, the string body includes a plurality of knitting sections formed by cutting the plurality of remarked cut areas.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a top plan view showing a plurality of strip bodies of a racquet string structure with cutting marks being bound together according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing the assembly of the racquet string structure with the cutting marks according to the first embodiment of the present invention.

FIG. 3 is a perspective view showing a strip body of the racquet string structure with cutting marks being cut into a plurality of knitting sections according to the first embodiment of the present invention.

FIG. 4 is a plan view showing the plurality of knitting sections being inserted and knitted in a racket frame of a badminton racket according to the first embodiment of the present invention.

FIG. 5 is another plan view showing the plurality of knitting sections being inserted and knitted in a racket frame of a badminton racket according to the first embodiment of the present invention.

FIG. 6 is a plan view showing the plurality of knitting sections being inserted and knitted in a racket frame of a tennis racket according to the first embodiment of the present invention.

FIG. 7 is a perspective view showing the assembly of a racquet string structure with cutting marks according to a second embodiment of the present invention.

FIG. 8 is a perspective view showing the assembly of a racquet string structure with cutting marks according to a third embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to FIGS. 1 and 2, a racquet string structure with cutting marks according to a first embodiment of the present invention is employed to insert a string body 10 into a racket frame of badminton racket and comprises the string body 10 and a plurality of remarked cut areas 20 separately arranged on plural positions of the string body 10.

The string body 10 is made of any one of nylon, artificial gut, natural gut and artificial fibers.

Each marked cut area 20 has a length L which provides an identifiable cutting portion so that the string body 10 is cut exactly and then is inserted into the racquet frame; each marked cut area 20 is printed a color thereon by a printing machine in a coating process; wherein the plural positions of the string body 10, where the plurality of marked cut areas 20 are arranged, are determined based on a desired knitting size of the racquet frame or a knitting manner for knitting the racquet frame.

Accordingly, the plurality of remarked cut areas 20 are provided to indicate cutting portions so that the string body 10 is cut into plural inserting sections precisely and easily.

The string body 10 is hollow or solid and includes a plurality of knitting sections formed by cutting the plurality of remarked cut areas 20. Thereby, the string body 10 is cut into the plurality of remarked cut areas 20 in a certain length based on using requirement.

Referring further to FIG. 3, the string body 10 is cut into the plurality of knitting sections by cutting the plurality of remarked cut areas 20 so that the plurality of knitting sections are inserted and knitted in the string frame.

As shown in FIG. 4, the string body 10 is knitted in a racket frame 32 of a badminton racket 30 in a one-two-knot manner or a two-four-knot manner. The badminton racket 30 includes a racket handle 31 disposed on a lower side thereof and the racket frame 32 mounted on an upper side thereof, the racket frame 32 has a plurality of holes defined around a peripheral side of the racket frame 32 for longitudinally and laterally inserting the plural knitting sections into the racket frame 32 so as to form a mesh surface inside the racket frame 32. When the plural knitting sections of the string body 10 is knitted in the racket frame 32 in the two-four-knot manner, lengths of the plural knitting sections are not equal, for example, plural knitting sections 10 are longitudinally inserted into the racket frame 32 from a thick arrow direction and are wound toward plural thickly circular remarking portions; and plural short knitting sections 10â€² are horizontally inserted into the racket frame 32 from a thin arrow direction and are wound toward plural thinly circular remarking portions. Thereafter, the plural long knitting sections 10 and the plural short knitting sections 10â€² are pound pulled and are tied on the plural thickly circular remarking portions and the plural thinly circular remarking portions, thus knitting the plural long knitting sections 10 and the plural short knitting sections 10â€² in the racket frame 32 completely.

As illustrated in FIG. 5, the string body 10 is knitted in the racket frame 32 in the one-two-knot manner, wherein the plural long knitting sections 10 are longitudinally inserted into the racket frame 32 from a thick arrow direction and then are horizontally inserted into the racket frame 32, wherein two ends of each long single knitting part 10 are inserted out of two thickly circular marking portions, pound pulled, and tied on the two thickly circular marking portions, thereby knitting the plural long knitting sections in the racket frame 32 completely.

With reference to FIG. 6, a tennis racket 40 includes a racket handle 41 fixed on a lower side thereof and a racket frame 42 secured on a lower side thereof, and a plurality of holes are defined around a peripheral side of the racket frame 42 so that plural knitting sections 10 are cut from a string body and are longitudinally and horizontally inserted into the racket frame 42 to form a mesh surface inside the racket frame 42.

It is to be noted that a distance between each two remarked cut areas 20 is equal to a predetermined insertion length according to any one of a length of each short knitting sections 10â€², a length of each long single knitting part 10, a total length of a plurality of short knitting sections 10â€² and a plurality of long knitting sections 10â€², and a knitting manner, such as a one-two-knots or two-four-knots.

The string body 10 includes the plurality of marked cut areas 20 printed thereon so that a user cuts the plurality of marked cut areas 20 into the plural knitting sections 10 (i.e., the plural long knitting sections and the plural short knitting sections), and then the plural knitting sections 10 are longitudinally and laterally inserted into the racket frame 32 from the plurality of holes around the peripheral side of the racket frame 32, such that the plural knitting sections 10 are pulled tightly to form the mesh surface inside the racket frame 32 easily and quickly.

In addition, each marked cut area 20 has the length L which provides an identifiable cutting portion so that the string body 10 is cut exactly into the plural knitting sections, and then the plural knitting sections are inserted into the racquet frame; and each marked cut area 20 is printed the color thereon by the printing machine in the coating process; wherein the plural positions of the string body 10, where the plurality of marked cut areas 20 are arranged, are determined based on the desired knitting size of the racquet frame or the knitting manner for knitting the racquet frame. Preferably, the length L of each marked cut area 20 can be adjusted so that a knot is tied on the length L or the length L is pound pulled to facilitate forming the mesh surface inside the racket frame 32.

Referring to FIG. 7, a racquet string structure with cutting marks of a second embodiment from that of the first embodiment comprises a plurality of marked cut areas 20 marked by at least one character, and wherein a length L of each marked cut area 20 corresponds to a number of the at least one character, a combination of the at least one character is a trademark.

As shown in FIG. 8, a racquet string structure with cutting marks of a third embodiment from that of the first embodiment comprises a plurality of marked cut areas 20 marked by pattern, and wherein a length L of each marked cut area 20 corresponds to a length of the pattern, the pattern can be a trademark.

Thereby, the racquet string structure with the cutting marks of the present invention includes the plurality of marked cut areas on which the color and the at least one character or the pattern is printed so that the plurality of marked cut areas are cut into the plural knitting sections precisely and easily, and the length of each single knitting part is adjusted based on the using requirement so that the plural knitting sections are longitudinally and horizontally inserted into the racket frame to form the mesh surface inside the racket frame easily and quickly.

While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention.