KR20070091509A - Graphiteshaft for golf club and manufacturing method of the same - Google Patents

Abstract

A graphite shaft for a golf club and a manufacturing method thereof are provided to reduce torque of the graphite shaft and to increase meet ratio by arranging one or more divided torque bars. A graphite shaft includes an inner laminate(6), a coupling member lower layer portion(7), one or more divided torque bars(12) and an outer laminate(8). The inner laminate(6) is formed by winding one layer or two or more layers of a carbon fiber textile material. The coupling member lower layer portion(7) is formed on the outer circumference of the inner laminate(6). The divided torque bar(12) is disposed on the coupling member lower layer portion(7). The outer laminate(8) encloses the inner laminate(6), the lower layer portion(7) and the divided torque bar(12).

Description

Graphite shafts for golf clubs and methods of making the same {Graphiteshaft for golf club and manufacturing method of the same}

FIG. 1 is a perspective view illustrating a graphite shaft formed of two circular segment torque bars having two segments to describe a first embodiment according to the present invention.

2 is a cross-sectional view showing a cross section of the A-A portion of FIG. 1 according to the present invention.

3 is a flowchart illustrating a manufacturing process showing a first embodiment according to the present invention.

4 is a cross-sectional view for explaining FIG. 3 according to the present invention.

5 is a partially enlarged cross-sectional view for describing part 2A of FIG. 4 according to the present invention.

6 is a perspective view for explaining the type and shape of the segmented torque bar according to the present invention.

7 is a perspective view illustrating a method of arranging and fixing a segmented torque bar according to a second embodiment of the present invention.

FIG. 8 is a cross-sectional view for describing FIG. 9 according to the present invention, and is a cross-sectional view illustrating a case in which the cutting unit is cut like the A-A unit of FIG.

9 is a flowchart illustrating a manufacturing process of a second embodiment according to the present invention.

10 is a segmented torque bar (circular segmented torque bar 12, semi-circular segmented torque bar 13 shown in FIG. 6) disposed in the axial direction in the second embodiment according to the second embodiment according to the present invention, triangular segmented torque bar This is a flow chart to explain the manufacturing process according to the number of (14) and its number of segments.

FIG. 11 is a perspective view of a graphite shaft formed of a semi-circular segmented torque bar having two segments according to FIG. 6B according to a third embodiment of the present invention.

12 is a cross-sectional view showing a cross-section of the B-B portion of FIG. 11 according to the present invention.

FIG. 13 is a perspective view of a graphite shaft formed of two segmented axial triangular torque bars in FIG. 6 according to a fourth embodiment of the present invention.

14 is a cross-sectional view showing a cross section of the C-C portion of FIG. 13 according to the present invention.

FIG. 15 is a perspective view of a graphite shaft formed of three circular segment torque bars having three segments in two axes according to FIG. 6A according to a fifth embodiment of the present disclosure.

16 is a cross-sectional view showing a cross section of the D-D portion of FIG. 15 according to the present invention.

FIG. 17 is a perspective view of a graphite shaft formed of four circular segment torque bars having four segments in two axes according to FIG. 6A according to a sixth embodiment of the present invention.

18 is a cross-sectional view showing a cross section of the E-E portion of FIG. 17 according to the present invention.

19 is a cross-sectional view showing the seventh, eighth, ninth, tenth, eleventh, and twelfth embodiments of D, E, F, G, H, and I according to the present invention, respectively.

20 is a perspective view of a graphite shaft showing a coupling between a segmented torque bar and an auxiliary torque bar in the thirteenth embodiment according to the present invention.

21 is a cross-sectional view showing a cross section of the F-F portion of FIG. 20 according to the present invention.

22 is a cross-sectional view for describing a flowchart of FIG. 23 according to a fourteenth exemplary embodiment according to the present invention.

FIG. 23 is a flowchart illustrating a thirteenth embodiment of FIG. 20 and a fourteenth embodiment of FIG. 22 according to the present invention.

24 is a flowchart illustrating an embodiment of U3 and U4 of FIG. 23 according to FIG. 20 according to the present invention.

25 is a cross-sectional view showing the 15th, 16th, 17th, and 18th embodiments of the J, K, L, and M diagrams according to the present invention, respectively.

26 is a perspective view of a graphite shaft showing a nineteenth embodiment according to the present invention.

FIG. 27 is a cross-sectional view of a G-G section in FIG. 26 according to the present invention. FIG.

28 is a flowchart illustrating a manufacturing process of the nineteenth embodiment of FIG. 27 according to the present invention.

The present invention relates to a graphite shaft (graphite shaft) for a golf club, and more particularly, a light and smooth feature that can have a fast swing speed and advantages of the graphite shaft for a golf club (steel shaft for a golf club) It meets all the features of accurate directionality due to the low torque, which is the advantage of the shaft, and simultaneously increases golfer's high mitt rate, swing speed, and accurate directionality and distance when hitting the golf ball. The present invention relates to a graphite shaft for a golf club and a method of manufacturing the same.

In general, a golf club may be composed of a club head for hitting the golf ball, a shaft for fixing the head and a handle. The shaft for the golf club is divided into a drive and an iron, the shaft for the golf club is mainly made of steel or carbon fiber material and according to the golfer's propensity, that is, the golfer's physical strength and swing speed, It is used to choose among graphite shafts.

In general, the steel shaft has a low rate of torsion when hitting the ball and a small deflection of the shaft, and thus has a high rate of meet for precisely hitting the golf ball. And if the swing speed is backed by the golf ball flying distance (distance) may increase and may have a heavy and hard problem. And the graphite shaft is light and soft, so it is easy to swing to hit the golf ball, so that the swing speed can be taken quickly, but when the club swings, the torsion and bending are large and the drop phenomenon occurs. It is difficult to hit the golf ball accurately at the hitting point of the head is low (meet) rate that can accurately match the golf ball to the hitting point of the golf club head, and thus there may be a problem that the direction in which the golf ball is flying low.

The present invention has been proposed in order to solve the above problems, an object of the present invention is an adhesive resin such as a resin to a carbon fiber yarn or a Fe microfiber yarn or a glass fiber yarn to a certain portion of the graphite shaft (graphite shaft) By adding or aligning or stapling the segmented torque bar formed by drawing or compressing method to one or more, it reduces the torque of the graphite shaft for the golf club and reduces the directionality and the mete rate. It is to provide a graphite shaft for a golf club that can improve the distance by increasing the swing speed by increasing the swing speed while maintaining a smooth bending.

In order to achieve the above object, the present invention, the carbon fiber as the main material to determine the strength (flex) and twist (torque) and weight of the graphite shaft (graphite shaft) for the golf club on the outer peripheral surface of a constant angle and length To cut the outer peripheral surface of the mold into one or more layers to form an inner layer, or to cut the outer peripheral surface of the mold into one or two layers of materials cut with a combination of carbon fiber as the main material, glass fiber as the material, and ultrafine Fe. Winding more than one layer to form an inner layer, and a portion of the inner layer is formed of a coupling member lower layer made of carbon fiber, glass fiber or Fe microfiber, and then one or more sizes in the axial direction on the lower layer of the coupling member. Segmental torque bar or segmented torque bar or auxiliary torque bar with same or different shape and straight torque bar and auxiliary torque After arranging the bar, it is firmly covered with carbon fiber or glass fiber or upper part of the joining member which is cut by Fe microfiber, and firmly fixed.The inner adaptation, the lower part of the joining member and the upper part of the joining member are one or two or more layers of carbon fiber or glass. It provides a graphite shaft for a golf club formed by forming an outer layer wrapped with fibers and Fe microfine fibers.

The inner lamination is formed by winding the outer circumference of the mold with one or more layers of carbon fiber as the main material so as to determine the strength, the torque, and the weight of the shaft for the golf club, or forming the inner lamination. After cutting and winding carbon fiber, which is the main material, to form one or two or more layers of materials cut with glass fiber, Fe microfine fiber, etc., or to form internal lamination, or carbon fiber, glass fiber, which is the main material, and Fe After cutting with a combination of micro-fine fibers, etc., the inner layer is formed by winding one or two or more layers.

The lower portion of the coupling member is formed of one or two or more layers of carbon fiber, glass fiber or Fe microfine fiber as long as the axially disposed portion length of the inner layer.

The segmented torque bar is disposed one or two or more in the axial direction on the outer circumferential surface of the lower portion of the coupling portion formed in the inner layer, the segmented torque bar is a resin such as yarn for carbon fiber or yarn for ultrafine fiber or yarn for glass fiber It can be divided into two or three segments or more by drawing or compressive plastic processing by adding an adhesive resin of the above, and the segment torque bar can have a circular, semi-circular, triangular shape, and the thickness, shape and length of each other The same or different combinations are made.

The upper part of the coupling member is formed of carbon fiber, glass fiber or Fe microfine fiber such that the segmented torque bar disposed at the lower part of the coupling member is firmly fixed at a predetermined position.

The outer layer is composed of one or two or more layers of carbon fibers or a combination of carbon fibers, glass fibers and Fe microfine fibers.

The segmented torque bar and the auxiliary torque bar may be arranged in one or two or more in the axial direction of the graphite shaft, and the segmented torque bar and the auxiliary torque bar may be divided into two segments or more. It may have a circular, semi-circular, triangular rod-like or tubular shape, and the combination may be made different in thickness, shape and length from each other.

The segmented torque bar may be arranged as a straight torque bar that is not segmented. The segmented torque bar may be divided into two or more segments together with the straight torque bar, and the segmented torque bar may be divided into two segments or more.

The shrink film is formed in a constant shape for a predetermined time during which the inner layer and the coupling member lower layer, the coupling member upper layer and the coupling member lower layer, which are firmly fixed to the upper layer of the coupling member and the auxiliary torque bar and the outer lamination are heat-treated. It is wound on the outer circumferential surface of the outer lamination in one or more layers so that it can be fired while maintaining. At this time, the shrink film is compressed by heat and compressed to the inner lamination so that carbon fiber, glass fiber and Fe microfiber forming the graphite shaft are compressed so that no voids or pores are generated.

A portion of the segmented torque bar and the auxiliary torque bar or the linear torque bar that is disposed in the axial direction may protrude as the shape and the length of the segmented torque bar and the auxiliary torque bar or the linear torque bar from the outer laminated surface.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view illustrating a graphite shaft formed of two circular segmented torque bars 12 having two segments in order to describe a first embodiment according to the present invention. The protrusions 5 of the two circular segmented torque bars 12 shown in FIG. 2 having one segmented portion 4 each, and the tip portion 1 and the golf club handle engaging the golf club head. A graphite shaft for a golf club is shown which consists of a butt part 2 for engaging.

The segment 4 may maintain the softness of the graphite shaft and increase the swing speed to increase the distance, and to disperse the impact transmitted to the golfer's body when hitting the golf ball. It is effective and can prevent the break by impact.

Figure 2 is a cross-sectional view showing a cross-sectional view of the AA portion of Figure 1 according to the present invention, and the carbon fiber or carbon fiber to determine the strength, twist and weight of the graphite shaft (graphite shaft) for golf clubs according to the present invention Combining glass fiber or carbon fiber and Fe microfiber, etc. to form one or two or more layers to form an inner laminate (6), and then the circular segmented torque bar (12) on the outer periphery of the inner laminate (6) There is a coupling member lower layer 7 so as to be firmly fixed and molded between the inner stack 6 and the outer stack 8, and then the circular segmented torque bar 12 is disposed on the outer circumferential surface of the coupling layer lower layer 7. Next, it is shown that the outer laminated layer 8 is formed by winding one or two or more layers by combining carbon fibers or carbon fibers and glass fibers or carbon fibers and ultrafine fibers.

The coupling member lower layer 7 may be used in the combination of two or more of carbon fiber, glass fiber or Fe ultrafine fiber, respectively. The resin 9 is added to carbon fiber, glass fiber, or Fe microfiber which forms the inner layer 6, the coupling member lower layer 7 and the outer layer 8 during heat treatment for molding, and then melts in the heat to form an empty space. It fills and hardens as it dries after heat treatment.

Figure 3 is a flow chart for explaining the manufacturing process showing a first embodiment according to the present invention, as shown in Figure 4 and the carbon fiber or carbon fiber on the outer periphery of the mold (10, shown in Figure 7) A combination of glass fibers or carbon fibers and Fe microfibers is cut to a desired shape and wound around the mold 10 to make the inner laminate 6 so as to form the most interior in the shape of the mold 10 (G1). At this time, the internal stack 6 is primarily determined by the flex (flex), the torque (torque) and the weight of the graphite shaft (graphite shaft) for the golf club according to the present invention. And as shown in FIG. 45 on the outer circumferential surface of the inner layer (6) to form a coupling member lower layer 7 so that the circular segment torque bar 12 is firmly fixed between the inner layer (6) and the outer layer (8) ( G2). Next, a circular segment torque bar 12, which serves to reduce the torsion of the graphite shaft for the golf club according to the present invention, is disposed on the surface of the coupling member lower layer 7 at an appropriate position (G3). ). Next, an outer laminate 8 forming the appearance of a graphite shaft for a golf club according to the present invention is made (G4). At this time, a certain portion of the external laminated 8 has a protrusion 5 protruding in the shape of the circular segmented torque bar 12. Then, the shrinkage film 11 is wound around the outer circumferential surface of the outer laminate 8 and compressed (G5). The shrink film 11 has an inner layer 6, a coupling member lower layer 7, and a resin 9 contained in the outer layer 8, which are wound or disposed on the outer circumference of the mold 10 during heat treatment. The circular segmented torque bar 12 is maintained as it is, without flowing down or leaking into the furnace, and at the same time, a certain shrinkage phenomenon occurs during heat treatment, thereby increasing the density of each layer and suppressing the generation of pores. Next, the inner layer 6 wound by the shrink film 11, the lower part 7 of the coupling member, and the mold 10 having the circular segment torque bar 12 and the outer layer 8 are heat-treated in a heat treatment furnace (G6). ). Next, the mold 10 is separated using a de-simulator (G7). Then, after separating from the mold 10, the cut to the appropriate length and then released by removing the shrink film 11 is provided a graphite shaft (graphite shaft) according to the present invention.

4 is a cross-sectional view for explaining FIG. 3 according to the present invention.

FIG. 5 is a partially enlarged cross-sectional view for explaining part 2A of FIG. 4 according to the present invention. In FIG. 2, when the heat shrinking (G6) shrinkage film 11 is contracted, the carbon fiber wound around the mold 10 or Glass fiber and Fe microfiber are compressed and tightened. At this time, the circular segmented torque bar 12 is firmly fixed without empty space or pores by the resin 9 dissolved in heat.

Figure 6 is a perspective view for explaining the type and shape of the segmented torque bar (12, 13, 14) according to the present invention, A is a circular segmented torque bar 12 and B is a semi-circular segmented torque bar (13) and C is A perspective view showing the triangular segmented torque bar 14. The segmented torque bars 12, 13, and 14 are in the shape of rods or tubes, one of which is thinner than the other, and A, B, and C of FIG. 4 are each divided into two segments. ), A semi-circular segmented torque bar 13 and a triangular segmented torque bar 14 are shown, but may be segmented into three segments, four segments or more.

7 is a perspective view illustrating a method of arranging and fixing a circular segmented torque bar according to a second embodiment of the present invention, in which an inner laminate 6 is formed on an outer circumferential surface of a mold 10 and then a coupling member lower layer part. (7) and then a circular segmented torque bar (12, semi-circular segmented torque bar 13 or triangular segmented torque bar 14)) may be arranged on the lower part of the coupling member 7 5B, the circular segmented torque bar 12 (a semi-circular segmented torque bar 13, or the triangular segmented torque bar 14) may be used as the coupling member upper layer 15 (5B). It is a bonding degree which winds up the material 5C which cut | disconnected the fabric to form after pasting it (5A) and forming the outer laminated layer 8 beforehand.

FIG. 8 is a cross-sectional view for describing FIG. 9 according to the present invention, and is a cross-sectional view illustrating a case in which the cutting unit is cut like the A-A unit of FIG.

9 is a flow chart for explaining the manufacturing process of the second embodiment according to the present invention, the graphite shaft for a golf club according to the present invention on the outer periphery of the mold (10, shown in Figure 7) by FIG. In order to primarily determine the strength, torsion and weight of the graphite shaft), the inner layer (6) formed by combining one or two or more layers of carbon fiber or carbon fiber and glass fiber or carbon fiber and Fe microfiber is wound and molded. And a lower portion of the coupling member so that the circular segment torque bar 12 is firmly fixed between the inner stack 6 and the outer stack 8 as shown in FIG. 8 on the outer circumferential surface of the inner stack 6. (7) make (S2). Next, the circular segment torque bar 12, the semi-circular segment torque bar 12, or the triangular segment, which reduces the torsion of the graphite shaft for the golf club according to the present invention on the surface of the lower member 7 of the coupling member. The torque bar 14 can be used.) Is disposed at an appropriate position (S3). Next, the circular segmented torque bar 12 is covered and fixed with the upper part of the coupling member 15 (S4), and the outer stack 8 forming the exterior of the graphite shaft for the golf club according to the present invention is formed (S5). ). At this time, a portion of the outer stack 8 has a protrusion 5 protruding from the outer stack 8 surface by the circular segmented torque bar 12. Then, the shrinkage film 11 is wound around the entire outer circumference of the outer laminate 8 and compressed (S6). The shrinkage film 11 is the resin (9) contained in the inner layer (6) and the coupling member lower layer portion 7 and the outer layer (8) wound or disposed on the outer periphery of the mold 10 during the heat treatment to the outside It is fixed in the place where the circular segmented torque bar 12 is disposed without flowing or leaking, and while maintaining the shape as it is, at the same time, a certain shrinkage phenomenon occurs during heat treatment to increase the density of each layer and to generate pores. It acts as a deterrent Next, the inner laminate 6 wound with the shrink film 11 and the lower member 7 of the coupling member, the circular segment torque bar 12 and the mold 10 wound around the outer laminate 8 are heat-treated and fired in a heat treatment furnace. (S7). Next, the mold 10 is separated using a decentering machine (S8). Then, after separating from the mold 10 and then cut to a suitable length, and then loosened and removed the shrink film 11 is provided a graphite shaft (Graphite shaft) according to the present invention.

10 is a segmented torque bar (circular segmented torque bar 12, semi-circular segmented torque bar 13 shown in FIG. 6) disposed in the axial direction in the second embodiment according to the second embodiment according to the present invention, triangular segmented torque bar In order to explain the manufacturing process according to the number of (14)) and the number of segments thereof, a detailed description of the various combinations of the segmented torque bars 12, 13, and 14 that can form S3 of FIG. Flowchart. T1 for arranging one semi-circular segmented torque bar 13 with two segmented torque bars in the axial direction in the coupling member lower layer 7 formed on the inner stack 6 of the outer circumferential surface of the mold 10 is shown in FIGS. 11 and 12. In this case, one semi-circular segmented torque bar 13 may be divided into three segments or more segments, and two triangular segmented torque bars 14 with two segmented torque bars in the axial direction on the coupling member lower layer 7. 13 and 14 are arranged, wherein the two triangular segmented torque bars 14 can be divided into three segments or more segments, and the two segmented torque bars in the axial direction to the coupling member lower layer 7. T3, which arranges three circular segment torque bars 12, is shown in FIGS. 15 and 16, wherein the three circular segment torque bars 12 may be divided into three segments or more segments, and the coupling member lower layer ( 7) Four circles with two segment torque bar in the axial direction T4 for arranging the segmented torque bar 12 is shown in FIGS. 17 and 18, wherein the four circular segmented torque bars 12 can be divided into three or more segments, and T5 is the segment as described above. The torque bars 12, 13, 14 may be divided into segments or more segments. Each segment torque bar 12, 13, 14, which is axially disposed in the coupling member lower layer 7, in one or two segments divided into two or three segments or more, into the coupling member upper layer 15. After covering and fixing, the outer laminate 8 is formed, wound into a shrink film 11, heat-treated, fired, separated from a mold, and then removed from the shrink film 11, thereby providing a graphite shaft according to the present invention. It is done.

FIG. 11 is a perspective view of a graphite shaft formed of one semi-circular segmented torque bar 13 in two segments according to FIG. 6B according to a third embodiment of the present invention. It describes the combination of and has one segment (4). At this time, the segment portion 4 is a portion that maintains the smooth bending of the graphite shaft (Graphite shaft), the more the segment portion 4, the softer and faster the swing speed.

12 is a cross-sectional view showing a cross-sectional view of the BB portion of FIG. 11 according to the present invention, one semi-circular segmented torque bar 13 shown in FIG. 6B next to the inner stacked layer 6 and the lower portion of the coupling member 7. The cross-section of the graphite shaft according to the present invention, which is arranged and then fixed to the upper part of the coupling member 15 and the outer stack 8 is illustrated.

13 is a perspective view of a graphite shaft formed of two triangular segmented torque bars 14 having two segments in the axial direction according to FIG. 6C according to the present invention of FIG. The combination of the flowcharts of T2 is illustrated and has two segmental parts (4).

FIG. 14 is a cross-sectional view showing a cross section of the CC portion of FIG. 13 according to the present invention. The triangular segmented torque bar 14 shown in FIG. 6C is shown after the inner laminate 6 and the coupling member lower layer portion 7. The cross-section of the graphite shaft according to the present invention, which is arranged and then fixed to the upper part of the coupling member 15 and the outer stack 8 is illustrated.

FIG. 15 is a perspective view of a graphite shaft formed of three circular segment torque bars 12 having three segments in two axes according to FIG. 6A according to a fifth embodiment of the present invention. The combination of T3's flowchart is illustrated and has three segmented parts (4).

FIG. 16 is a cross-sectional view showing a cross-sectional view of the DD portion of FIG. 15 in accordance with the present invention, followed by the inner stack 6 and the coupling member lower layer portion 7, followed by the circular segment torque bar 12 shown in FIG. The cross section of the graphite shaft according to the present invention is shown in which three are arranged in the axial direction and then fixed by the upper part of the coupling member 15 and the outer stack 8 is formed.

FIG. 17 is a perspective view of a graphite shaft formed of four circular segment torque bars 12 having four segments in two axes according to FIG. 6A according to a sixth embodiment of the present invention. The combination of the T4 flowcharts is illustrated and has four segments (4).

18 is a cross-sectional view showing a cross section of the EE portion of FIG. 17 according to the present invention, followed by an inner stack 6 and a coupling member lower layer portion 7 followed by a circular segmented torque bar 12 shown in FIG. 4 shows a cross section of the graphite shaft according to the present invention, which is arranged in four directions and then fixed to the upper part of the coupling member 15 and the outer stack 8 is formed.

19 is a cross-sectional view showing the seventh, eighth, ninth, tenth, eleventh, and twelfth embodiments of D, E, F, G, H, and I, respectively, according to the present invention; D shows a shape of one of the three circular segmented torque bars 12 disposed on the lower portion 7 of the coupling member and the smaller of the others. FIG. E shows a shape in which the circular segmented torque bar 12 is disposed along with the triangular segmented torque bar 14 at the coupling member lower layer 7. FIG. F is a shape in which the circular segmented torque bar 12 having the larger size and the two circular segmented torque bar 12 having the smaller size among the four circular segmented torque bars 12 are formed in the coupling member lower layer 7. It is shown. FIG. G shows a shape in which the semi-circular segmented torque bar 13 having a large size and the circular segmented torque bar 12 having two small sizes are arranged in the coupling member lower layer 7. The diagram H shows a shape in which the circular segmented torque bar 12 having a smaller size is disposed in the coupling member lower layer 7 together with a large circular segmented torque bar 12. FIG. 1 shows the shape of four semi-circular segmented torque bars 13 together with one triangular segmented torque bar 14 in the lower portion 7 of the coupling member.

FIG. 20 is a perspective view illustrating an arrangement in which auxiliary torque bars 16 in opposite directions are disposed on axial segment torque bars 12, 13, and 14 according to a thirteenth embodiment according to the present invention. Arrange the two four-segmented circular auxiliary torque bars 16 which are symmetrical to each other at right angles to the segmented portion 4 of the segmented torque bar 12 to prevent breakage of the segmented portion 4 and the segmented portion 4. Graphite shaft (Graphite shaft) according to the present invention to control the bending of. The auxiliary torque bar 16 may have a circular or semi-circular or triangular rod or tube, and one side is smaller than either side.

FIG. 21 is a cross-sectional view showing a cross section of the FF section of FIG. 20 in accordance with the present invention, followed by an inner stack 6 and a coupling member lower layer section 7 followed by a circular segmented torque bar 12 shown in FIG. And two auxiliary torque bars 16 of four segments arranged so as to be perpendicular to the segment part 4 of FIG. 20 in the axial direction, and then fixed to the upper part of the coupling member 15, and then the external lamination ( 8 is a cross-sectional view of a graphite shaft according to the present invention forming 8).

FIG. 22 is a cross-sectional view for explaining the flowchart of FIG. 23 according to a fourteenth exemplary embodiment according to the present invention. The circular segment torque bar illustrated in FIG. 12) are arranged in the axial direction two and two auxiliary torque bar 16 of four segments to be perpendicular to the segment in the axial direction of Figure 20 and then fixed by the upper part of the coupling member (15) and the external lamination The cross section of the graphite shaft according to the present invention, which is formed by (8) and then wound by a shrink film 11, is shown.

FIG. 23 is a flow chart for explaining the thirteenth embodiment of FIG. 20 and the fourteenth embodiment of FIG. 22 according to the present invention. The inner laminated layer 6 which forms the innermost part in the shape of the mold 10 formed by winding one or two or more layers of cut materials made of fibers and glass fibers or carbon fibers and ultrafine fibers (U1), And to make the circular segment torque bar 12 is firmly fixed to make the coupling member lower layer 7 (U2). Next, a circular segmented torque bar 12, a semi-circular segmented torque bar, which reduces the torsion of the graphite shaft for the golf club and reduces the drop phenomenon on the surface of the coupling member lower layer 7 (13) or the triangular segmented torque bar 14 may be used (U3). Next, the auxiliary torque bar 16 is arranged so as to be perpendicular to the segmental portion 4 of FIG. 20 in the axial direction (U4). Next, the circular segmented torque bar 12 is covered and fixed with the upper part of the coupling member 15 (U5), and the outer stack 8 forming the appearance of the graphite shaft for the golf club according to the present invention is formed (U6). ). In addition, the shrinkage film 11 is wound around the outer circumferential surface of the outer laminate 8 to be compressed (U7), and then calcined by heat treatment in a heat treatment furnace (U8). Next, the mold 10 is separated using a de-simulator (U9). Then, after separating from the mold 10 and then cut to a suitable length, and then loosened and removed the shrink film 11 is provided a graphite shaft (Graphite shaft) according to the present invention.

FIG. 24 is a flowchart illustrating an embodiment of U3 and U4 of FIG. 23 according to the present invention, and assists with segmented torque bars 12, 13, and 14 that may form U3 and U4 of FIG. 23. It is a flowchart for demonstrating the various combination of the torque bars 16 in detail. That is, one or more segmented torque bars 12, 13, and 14 having two or more segments in the axial direction are attached to the coupling member lower layer 7 formed on the inner stack 6 of the outer circumferential surface of the mold 10. After arranging, one or more auxiliary torque bars 16 are arranged to be symmetrically axially perpendicular to the segments 4 of the segmented torque bars 12, 13, and 14, and then the coupling member upper layer 15 is disposed. After encapsulated and fixed, carbon fiber or a combination of carbon fibers and ultra fine fibers was formed to form an outer layer, wound with a shrink film, and heat-treated to remove it from the mold, cut to an appropriate length, and remove the shrink film from U3 of FIG. A graphite shaft according to the present invention is provided by various combinations of the segmented torque bars 12, 13, 14 and auxiliary torque bars 16 which can form U4.

25 is a cross-sectional view showing the 15th, 16th, 17th, and 18th embodiment of the J, K, L, and M according to the present invention, wherein J is Y1 in FIG. Y2, L is Y3, and M is Y is a cross-sectional view of a graphite shaft according to the present invention which can be formed by a combination of Y4. At this time, the auxiliary torque bar 16 may be different from the segmented torque bars 12. 13 and 14, and may be combined in different shapes, sizes and thicknesses, and arranged in a shape of a rod or a pipe.

FIG. 26 is a perspective view of a graphite shaft showing a nineteenth embodiment according to the present invention, in which a straight circular torque bar 17 which is not segmented is disposed symmetrically with each other, and the straight circular torque bar ( 17) and two sub-torque bar 16, three-segmented to be symmetrical at right angles in the axial direction, are arranged symmetrically with each other, and then wound around the coupling member upper layer 15 to be fixed, and then the outer laminate 8 is formed. Graphite shafts are provided. In this case, the straight circular torque bar 17 may be formed in the form of a circular or semi-circular and triangular rod or tube, such as the segmented torque bars 12, 13, and 14, and one or more of the coupling member lower layer 7. It can be arranged as.

FIG. 27 is a cross-sectional view illustrating a cross section taken along the line G-G in FIG. 27 according to the present invention. FIG.

FIG. 28 is a flow chart for explaining the fabrication process of the nineteenth embodiment according to the present invention according to the present invention. The carbon fiber or carbon is formed on the outer circumference of the mold 10 and 7 as shown in FIG. One or two or more layers of the cut material made of fibers and glass fibers or carbon fibers and micro-fine fibers are wound to make an inner layer 6 that forms the innermost part of the mold (V1). Then, the coupling member lower layer 7 is formed on the outer circumferential surface of the inner stack 6 (V2). Next, one or more straight torque bars 17 which are not segmented on the surface of the coupling member lower layer 7 are arranged (V3), and two or more are perpendicular to the axial direction of the coupling member lower layer 7. The auxiliary torque bar 16 is arranged to be symmetrical (V4), and then wound around the coupling member upper layer 15 to be fixed (V5), and the outer part forming the appearance of the graphite shaft for the golf club (Graphite shaft) according to the present invention. A stack 8 is made (V6). Then, the shrinkage film 11 is wound on the outer circumferential surface of the outer laminate 8 and compressed (V7). Next, heat treatment is performed in a heat treatment furnace (V8). Next, the mold 10 is separated using a de-simulator (V9). Then, after separating from the mold 10 and then cut to a suitable length, and then loosened and removed the shrink film 11 is provided a graphite shaft (Graphite shaft) according to the present invention.

As described above, the present invention is a segmented torque bar or segmented torque bar having a circular or semi-circular and triangular shape in the form of a rod or tube, and a combination of a segmented torque bar and a straight torque bar and an auxiliary torque bar, which is an advantage of steel shafts. It allows the light and soft advantages of this small, graphite shaft to be simultaneously used, reducing the drop and torque that occurs during the swing of a conventional graphite shaft. Improves the rate (meet) that can strike the precise, to have the correct direction and at the same time has the effect of increasing the distance by maintaining the swing speed.

In addition, the present invention can adjust the bending and strength (flex) of the shaft by the combination of the segmented torque bar or segmented torque bar and the auxiliary torque bar or the straight-shaped torque bar and the auxiliary torque bar, and can vary the outer shape of the shaft to visual Effects can also be diversified.

In addition, the segment according to the present invention can maintain the smoothness of the graphite shaft (graphite shaft) can increase the swing speed can increase the distance (distance), the impact transmitted to the golfer's body when hitting the golf ball to disperse It is also effective to prevent breakage due to impact. Also, the more segments, the softer and faster the swing speed.

Claims (14)

An internal lamination provided by winding one or two or more layers of carbon fiber fabrics cut at appropriate angles and sizes; A coupling member lower layer of the inner laminated outer circumferential surface; And One or two or more segment torque bars provided in one or two or more segments disposed under the coupling member; And An outer lamination surrounding the inner lamination, a coupling member lower layer, and a segmented torque bar; Graphite shaft for the golf club (graphite shaft) comprising a. An internal lamination provided by winding one or two or more layers of carbon fiber fabrics cut at appropriate angles and sizes; A coupling member lower layer of the inner laminated outer circumferential surface; And One or two or more segment torque bars provided in one or two or more segments disposed under the coupling member; And A coupling member upper layer part surrounding the segmented torque bar; And Graphite shaft for a golf club including the inner layer and the coupling member lower layer and the outer layer surrounding the segmented torque bar and the coupling member upper layer. Internal lamination provided with one or two or more layers of carbon fiber fabrics cut at appropriate angles and sizes; A coupling member lower layer of the inner laminated outer circumferential surface; And An auxiliary torque bar interposed with the one or more segment torque bars and the one or more segment torque bars provided in one or two segments disposed on the coupling member lower layer; And A coupling member upper layer part surrounding the segmented torque bar; And Graphite shaft for a golf club including the inner layer and the coupling member lower layer and the outer layer surrounding the segmented torque bar and the coupling member upper layer. An internal lamination provided by winding one or two or more layers of carbon fiber fabrics cut at appropriate angles and sizes; A coupling member lower layer of the inner laminated outer circumferential surface; And One or more straight torque bars and one or more auxiliary torque bars disposed under the coupling member are provided; And A coupling member upper layer part surrounding the straight torque bar and the auxiliary torque bar; And Graphite shaft for a golf club including the inner layer and the coupling member lower layer and the linear torque bar and the auxiliary torque bar and the outer layer surrounding the coupling member upper layer. According to claim 1, 2, 3, 4, wherein the inner layer is provided with one or two or more layers of carbon fiber fabric or carbon fiber fabric and Fe microfiber fabric or carbon fiber fabric and glass fiber Graphite shaft for golf clubs, supplied in combination with fabric. The graphite shaft for a golf club according to claim 1, 2, 3, or 4, wherein the lower portion of the coupling member is formed of any one of carbon fiber fabrics, Fe microfiber fabrics, and glass fiber fabrics, or a combination thereof. (graphite shaft). The segmental torque bar, the auxiliary torque bar and the straight torque bar are made of carbon fiber yarns, Fe microfiber yarns, or glass fiber yarns. Graphite shaft for golf clubs, which is formed in the shape of a rod or tube by drawing or compressing one of them by adding an adhesive resin. The method of claim 1, 2, 3, 4, wherein the segmented torque bar, the auxiliary torque bar and the straight torque bar, one or two or more layers of carbon fiber fabric, Fe microfiber fabric or glass fiber fabric Graphite shafts for golf clubs, which are formed in the shape of a rod or tube formed by molding a small one of them. The graphite for a golf club according to claim 1, 2, 3, or 4, wherein the segmented torque bar, the auxiliary torque bar, and the straight torque bar are formed of any one of a circle, a semicircle, a triangle, or a combination thereof. Graphite shaft. According to claim 1, 2, 3, 4, wherein the outer layer is one or two or more layers of carbon fiber fabric or carbon fiber fabric and Fe microfiber fabric or carbon fiber fabric and glass fiber Graphite shaft for golf clubs, supplied in combination with fabric. The method of claim 1, 2, 3, 4, wherein the outer stacking of the segmented torque bar and the auxiliary torque bar compared to the portion where the segmented torque bar is not disposed in the inner stacking direction in the direction of the outer stacking. Graphite shafts for golf clubs with numbers, lengths and protrusions projecting in a certain shape. 5. The graphite shaft of claim 1, 2, 3, or 4, wherein the outer stack forms segments according to the number of segments of the segmented torque bar. The method of claim 1, 2, 3, 4, wherein the segmented torque bar, the auxiliary torque bar and the straight torque bar is the same or different in size and shape in one or more axial direction in the lower layer of the coupling member. Graphite shafts for golf clubs, consisting of segmented torque bars or segmented torque bars and auxiliary torque bars or straight torque bars and auxiliary torque bars. The graphite shaft for a golf club according to claim 13, wherein the segment torque bar and the auxiliary torque bar are each segmented into two or more segments and aligned or staggered in the axial direction.

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