JP3019387U - Grips and golf clubs - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a grip that can be easily deformed when grasped and can maintain the deformed state even at the time of impact. The grip body is provided with an internal space, and the internal space is filled with bouncing putty or sponge impregnated with bouncing putty.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to golf and a golf club using the same.

[0002]

[Prior art]

 Conventionally, a grip is one of the important basic elements in golf, for example, so that it is said that "a grip starts and a grip ends." If this grip is poor, swinging tends to be bad. Correctly and firmly gripping the club and maintaining it during the swing, especially at the time of impact, greatly affects the direction of the ball.

FIGS. 10A and 10B are views showing a conventional golf club and grip. In particular, FIG. 10A shows a sectional view of the portion of the grip 30, and also shows the grip of FIG. 10B in a sectional view. As shown in FIGS. 10 (a) and 10 (b), a head 2 made of metal, wood or the like is fixed to the tip of a hollow golf club shaft 1 made of iron, carbon or the like, and a base end 1A of the shaft 1 is fixed. A grip 30 made of natural rubber, synthetic rubber, or the like is attached to the. The grip end 30B of the grip 30 has an opening 30A at the center thereof. The shaft 1 is generally thicker in a taper shape in the direction of the arrow from the club head 2 toward the grip end of the grip 3, and the grip 3 covering the shaft 1 is larger in diameter and thicker in the direction of the arrow. Therefore, when the base end 1A of the shaft 1 is covered with the grip 30, the grip is further thickened by the thickness of the grip.

[0004]

[Problems to be solved by the device]

 FIG. 11 (a) shows the left hand, and FIG. 11 (b) is an external view of the golf club shown in FIGS. 10 (a) and 10 (b) as seen from the front facing the golf club. is there. As shown in FIGS. 11 (a) and 11 (b), the human hand 100 holding the golf club has the middle finger as the longest and the ring finger and the child finger are shortened in the order of the arrow. Therefore, considering the case where the club is gripped with the hand 100, normally, the left hand must be firmly grasped in the order of the little finger, the ring finger and the middle finger from a position close to the grip end 30B of the grip 30, You must grasp firmly with your right middle finger and ring finger.

Therefore, in combination with the problem of the structural shape of the club, a difficult contradiction arises in that the thickest part of the grip of the club must be firmly grasped by the weakest and shortest fingers of the hand. Will end up. This causes the gripping force of the grip to withstand the impact and loosens, causing the direction of the ball to change.

Further, since the structure of the above-mentioned grip itself is generally an integrally molded structure made of hard rubber, many deformations cannot be expected. On the contrary, a soft material may be applied to enable large deformation, but when it grips at the address, it deforms with a small force, so it is possible to grip firmly and accurately. On the contrary, when the impact is applied, it is deformed further and it cannot solve the problem.

As a conventional example for solving the above-mentioned structural problem of the grip, a minute groove is provided on the inner surface of the grip (the surface in contact with the shaft), and its deformation improves the conformability when gripped. Some of them are intended, but the effects cannot be expected to be large. Others, such as those with a modified groove on the grip surface (the surface that the hand comes into contact with) in order to improve grip, are not expected to produce much.

As described above, the above-mentioned conventional techniques have a problem that it is difficult to grip the grip without loosening it by a force of a weak finger, and it is difficult to maintain the deformed state of the grip at the time of impact.

A known example using a bouncing putty is Japanese Patent Laid-Open No. 4-11974. This known example is an example in which elastic micro hollow spheres are mixed in the bouncing putty. As examples of application, examples of supporters such as ankles and grips of hitting exercise equipment such as bats and tennis rackets are disclosed. Such a known example has a problem that it requires a minute hollow sphere and that the original function of the bouncing putty cannot be utilized because it is mixed. In addition, golf clubs place extremely important demands on whether they fit comfortably in the hand and whether the fingers are firmly fixed at the time of impact of the golf ball, compared with baseball bats and rackets. Therefore, special consideration is required. Further, in the above-mentioned known example, as represented by a supporter, a bouncing putty containing elastic hollow spheres is embedded in a band-shaped material (for example, cloth), and chucks (magic tapes) that can be adhered are attached to both ends of the cloth, The material is wrapped around the target site such as the ankle and secured by a chuck. Therefore, it is only used for external attachment / detachment, and for golf clubs, the grip itself moves with such detachable grips, making it useless. Further, there is JP-A-62-159601 as an example of filling a gel-like substance in which microscopic hollow spheres are mixed, but the application target is different (application example to shoes), and JP-A-4-119. There is a problem similar to 74.

An object of the present invention is to enable a grip of a golf club to be easily deformed by a force of a forceless finger when gripping the grip, and to provide a firm grip without looseness. Another object of the present invention is to provide a grip having a grip structure capable of retaining the deformed state even at times, and a golf club using such a grip.

[0011]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the grip of the present invention and the golf club using the grip have an internal space in the grip body, and are constructed by filling a bouncing putty or a sponge impregnated with the bouncing putty. It was done.

Further, the grip of the golf club of the present invention and the golf club using the same are provided in the grip body in a longitudinal direction having a plurality of axisymmetrically arranged predetermined cross-sectional shapes (such as an arc cross-section or a circular cross-section). A space is provided, and the inner space is filled with bouncing putty or sponge impregnated with bouncing putty.

[0013]

[Action]

 The above grips and golf clubs using the grips have a bouncing putty filled in the internal space provided in the grip body or a sponge impregnated with the bouncing putty, which softly changes when the user grips the grip. It fits comfortably and loosely as a whole, and it fully satisfies the required grip function, which maintains its state even during impact.

Further, the above-mentioned golf club grip and golf club are filled in a longitudinal inner space having a plurality of axisymmetrically arranged predetermined cross-sectional shapes, arc cross-sections or circular cross-sections, which are provided in the grip body. The bouncing putty or the sponge impregnated with the bouncing putty softly deforms with a substantially even force in an axially symmetrical manner when the user grips the grip and fits comfortably and loosely on the entire finger, and at the time of an impact. Also, since the state is maintained, the grip function required is sufficiently satisfied.

[0015]

【Example】

 FIG. 2 is a view showing an embodiment of the golf club of the present invention, particularly an external view. A head 2 is attached to the front end of the shaft 1, and a grip 3 is attached and fixed to the base end of the shaft 1. The material of the shaft 1 is iron or carbon. The shaft 1 has a hollow structure. The grip 3 is made of an elastic member, for example, a hard rubber material made of natural or synthetic rubber, and its surface (the part touched by the human hand) has various shapes so that the human hand does not easily slip. The grip 3 is a thick cylindrical body, and its inner diameter is tapered toward the grip end, and the wall thickness is also increased toward the grip end. The thick portion has a hollow space inside, and a substance (filler) whose rigidity changes in response to stress, such as bouncing putty, preferably silicon bouncing putty, or a sponge impregnated with it Was filled. The grip end side of the grip 3 is attached with a closing end face cover portion 5 to close the shaft end and the grip end.

FIGS. 1 (a) and 1 (b) are schematic views showing an embodiment mainly of the grip of the golf club of FIG. 2 of the present invention. FIG. 1A is a sectional view in the axial longitudinal direction of the shaft, and FIG. 1B is a sectional view taken along the line AA. The base end of the shaft 1 is a gripping portion of the player, and has a shape having a tapered expansion toward the end direction (base end). This tapered spread makes it easier for players to grip the golf club.

A grip 3 is attached to the base end of the shaft 1 to be integrated. A hollow space 6 is provided in the thick portion of the grip body 4 of the grip 3, and the filling material is inserted and filled through an opening 6B on the grip end side of the hollow space. Further, a grip end surface lid 5 which is a separate body from the grip 3 is attached to the grip end of the grip 3. The grip 3 and the end cover 5 are preferably made of a hard elastic member such as natural or synthetic rubber, but they are not necessarily made of the same material. Since the grip 3 is a part to be gripped by the player, it is preferable to use a material that is easy to grip and is deformable according to the gripping force. Further, as the material of the grip 3, a known material of the grip of a golf club can be used as it is. Since the end of the grip 3 has the opening 6B and the shaft end is open, the end cover 5 has a role of closing the end from the outside. A portion for closing the opening 6B is a protrusion lid 5B attached to the tip of the lid 5 and having a substantially T-shaped cross section. A small hole 5A is provided at the center of the end surface cover portion 5. The lid 5 may have a shape such as a known grip end. Alternatively, the grip 3 and the lid 5 may be integrally formed. In the case of this integral molding, the end surface of the grip 3 (the portion corresponding to the lid portion 5) has an opening for closing the opening 6B from the outside (for example, a small piece for closing is closed and fixed). 4)), the outer shape may be the same as that of a known grip end.

As a matter of course, the inner shape of the grip 3 has substantially the same shape so that the taper-like expansion along the base end portion smoothly follows the surface of the shaft portion. Moreover, the grip 3 is thicker on the grip end side. Thus, it will be understood that the grip 3 is cylindrical in shape with a taper-like internal extent in the grip end direction. Furthermore, the grip 3 has a hollow structure inside its thickness. For example, FIG. 1B shows an example having four hollow spaces 6. In this example, as shown in FIG. 1 (b), four hollow spaces 6 are symmetrically provided around this axis with the central axis in the axial longitudinal direction, and the shape of each hollow space 6 is As shown in the cross section 1 (b), it has an arc cross-sectional shape. In addition, as shown in FIG. 1B, a space extending in the taper direction is formed along the longitudinal direction of the shaft. It is preferable that the length of the elongated space is a length that sufficiently includes the grip portion of the player's hand (considering the size and grip position of the hand). Therefore, it is desirable that the length of the grip 3 itself is slightly longer than the known grip length.

In the hollow space 6 of the grip 3, a substance (filler) 6A whose rigidity changes in response to stress, such as a bouncing putty, preferably a silicon bouncing putty, especially the reverse foam (trade name of Shin-Etsu Chemical Co., Ltd.) Fill the product with a silicon bouncing putty or a sponge impregnated with it. The bouncing putty is a rubber-like substance, and has three physical properties in terms of shape: gel, liquid, and elastic rubber. A document as an example of the structure of a silicon bouncing putty and its manufacturing method is Japanese Patent Publication No. 26-6944. An example of the molecular structure of silicon bouncing putty called reverse form is shown below.

[Chemical 1] This silicon bouncing putty has boron B added to the molecular structure of silicon resin (rubber). An example of the chemical formula as a polymer is shown in chemical formula 2.

[Chemical 2]

Plastic foams, air mats, gels and the like can be compared with the silicon bouncing putty. Plastic foam and air mats deform lightly and easily to follow external stress, but basically there is no repulsive deformation depending on the magnitude of stress. Further, the gel has a cushioning property against the impact from the outside as compared with the air mat, but there is a problem in weight reduction. On the other hand, silicone resin (rubber), especially silicone raw rubber, has a variety of molecular lengths and types, and can be freely combined with fillers and curing agents (various types and amounts can be selected). Moreover, there is an advantage that a material having a desired hardness can be obtained. Silicon bouncing putty was provided as a material that has the characteristics of silicon raw rubber and whose hardness changes according to the magnitude of external stress.

As can be seen from the chemical formulas 1 and 2, the silicon bouncing putty uses boron B instead of the oxygen that connects the silicon compound, and the bond by the boron B is for energy stimulation of a slow cycle. It is easy to break, and has a frequency dependence of external stress that is difficult to break for energy stimulation with a fast cycle.

Further, the silicone resin has properties such as heat and cold resistance (-50 ° C. to + 250 ° C.), chemical resistance, and ozone resistance, and the bouncing putty also inherits these properties. It has a property of being weak against water and alcohol. Therefore, it is necessary to use it in an environment that is not easily affected by water and alcohol. Since air contains water, it is not preferable to use it by exposing it to the air.

The filling method of the bouncing putty into the hollow space 6 of the grip 3 is as follows. (1) As shown in FIG. 1A, the end of the hollow space 6 has an injection opening 6B at its grip end. A bouncing putty dissolved in an alcoholic solvent is placed in a syringe-like injector, the inlet is inserted into this opening 6B, and force is applied to the putty from the outside to create a hollow space 6 inside the opening 6B. Push the bouncing putty inside. After that, the alcoholic solvent is vaporized to leave only the bouncing putty. Alternatively, the bouncing putty can be pushed directly out of the injector without dissolving it in a solvent. Since the bouncing putty changes slowly with respect to a slow external stress, such extrusion is possible. Fill the bouncing putty in every hollow space without any gap to complete the filling.

How to inject and close the opening 6B is shown in FIGS. FIG. 3 shows an injection procedure (solid line) in the grip with lid in which the lid 5 and the grip 3 are integrated, and FIG. 4 shows the structure of the grip with lid at that time. The grip 3 has a structure in which a portion corresponding to the lid portion 5 is integrally molded, and has a lid body opening 6C for closing the opening 6B. A small piece 6E is inserted into the insertion opening from the outside and adhered and fixed to close the opening 6C. In FIG. 3, step S ₁ shows an injection step, and step S ₂ shows a step of closing the small piece 6E. After this, in step S ₃ (broken line), the work of mounting the grip 3 of FIG. 4 on the shaft is performed.

FIG. 5 shows an injection procedure (solid line) at the grip when the lid 5 and the grip 3 are separated. FIG. 6 shows the structure of the grip 3 at that time. The grip 3 in FIG. 6 corresponds to the grip in FIGS. 1 (a) and 1 (b). Further, according to FIG. 5, injected into the grip 3 in FIG. 6 is performed in step S _4, mounted Step S ₅ lid 5 to the grip 3, attaching the grip 3 to the shaft 1 at step S _6. Step S ₆ is a procedure after the injection.

From the viewpoint that the silicon bouncing putty is weak against water and alcohol and has some fluidity, it is necessary to completely block the atmosphere, and the small piece 6E for closing the opening 6B in FIGS. 3 to 6. 1 and 5B in FIG. 1 must be fixed with an adhesive or not easily separated. For example, as shown in FIG. 1A, it is preferable that the lid 5B has a T-shaped cross section so that the lid 5 does not come out of the opening 6B after the attachment. If the tip of the small piece 6E is also T-shaped in cross section, it will be difficult to penetrate. (2) In the process of processing a natural or synthetic rubber to make a grip, there is a method of placing a bouncing putty on the rubber and confining it inside to integrally mold it. In this molding method, the injection hole 6B from the outside is unnecessary. (3) In the above (1), the putty is injected from the opening 6B, but there is an example in which the opening 6B is not provided at the grip end.

The grip 3 is attached to the shaft 1 in the following manner. (1), this mounting procedure is shown in FIG. The grip 3 at this time is as shown in FIGS. 1 (a) and 1 (b). Therefore, the lid 5 is already attached to the grip 3. Glue one side of double-sided adhesive tape (also referred to as lower winding tape) to the entire outer circumference (or effective outer circumference) of the base end part where the grip 3 of the shaft 1 is mounted, after removing the top paper. (step S _10). In this case, the adhesive tape is adhered on the outer circumference of the base end portion so as not to overlap each other. The adhesive tape can be applied on the outer circumference by winding it in a spiral or sticking it in the axial direction of the shaft. If the adhesive tape has the same size as the circumference of the outer circumference of the base end portion, it may be wound once. After the application is completed in this way, peel off the top paper on the other side of the adhesive tape. In order to increase the thickness of the grip, this kind of attachment is done in double or triple layers. After the upper paper is peeled off, the solvent for dissolving the adhesive of the adhesive tape is poured into the inner space of the grip 3 (here, the space where the base end of the shaft 1 is to be inserted) (step S ₁₁ ). At the time of this pouring, the hole of the grip end 5A and the hole of the insertion opening 5B of the end cover 5 are closed so that the solvent does not escape to the outside. Immediately insert a grip 3 to the proximal end of the finisher shift 1 was poured solvent (step S _12). At this time, if the solvent that has entered the grip 3 is sprinkled on the lower winding tape of the shaft 1, the grip 3 can be easily inserted into the shaft 1. Then, the shaft 1 and the grip 3 is adjusted in real so that the normal positional relationship (step S _13). After a lapse of a predetermined time, a part of the solvent is vaporized and the shaft and the grip are firmly bonded. (2) The adhesive tape was attached to the shaft 1, but there are other methods. A method of inserting the base end of the shaft 1 into the internal space of the grip 3 (here, the space where the base end of the shaft 1 should be inserted) is filled with the adhesive solution obtained by dissolving the adhesive in a solvent. Is. Although it has the advantage of eliminating the need to wind the adhesive tape in advance, it is necessary that the adhesive has a high adhesive ability.

FIG. 8 is a characteristic diagram of internal applied energy (internal impact force, viscoelastic modulus) with respect to the external deformation frequency (deformation speed) of the silicon bouncing putty of FIGS. 1 (a) and 1 (b). As shown in Fig. 8, the silicon bouncing putty has a low internal applied energy (internal impact force, viscoelasticity) at a low external deformation frequency (deformation speed) and a high external deformation frequency (deformation speed). Indicates that the internal applied energy (internal impact force, viscoelasticity) is high. Therefore, it can be seen that this bouncing putty is a material that deforms very flexibly under slow stress changes, but exhibits strong resistance to fast stress changes. Therefore, silicon bouncing putty is excellent as a material and a cushioning agent satisfying the stress characteristics required for grip due to such physical properties.

In a golf club having a grip as shown in FIGS. 1A and 1B and a grip as shown in FIG. 4, the bouncing putty filling portion 6 inside the grip 3 made of rubber or the like is as shown in FIG. By virtue of its characteristics, when the grip 3 is gripped as shown in FIG. 11 (b), the grip 3 is softly deformed, and the little finger, ring finger, and middle finger of the left hand are deformed as if they were buried. The size of the golf ball increases dramatically and fits comfortably on the entire finger, and the state is maintained even when the golf ball is hit and the shape does not collapse. Therefore, the grip 3 can sufficiently satisfy the function originally required for the grip.

In addition, the grip 3 is deformed with a small force, and the deformed state is different from that of the grip model for practice, in which the outer shape is preset to be similar to a grip and fixed, and the size of the user's finger is different. It is highly versatile because it adapts exactly to each user's specifications without being affected by such factors, and is particularly effective for many amateur golfers and weak female golfers. In addition, the impact absorbing power of the bouncing putty mitigates the adverse effects of impacts on the fingers, wrists, elbows, etc., and is also effective in preventing tendonitis of the wrists. Also, since it does not loosen at impact and therefore does not slip, the risk of the club slipping out and damaging the club, especially on rainy days, is reduced. Furthermore, the fact that the grip does not become loose and does not slip has the effect of minimizing the wear of the left-handed glove and improving the wear of the left-handed glove.

9 (a) and 9 (b) are a longitudinal sectional view and an arrow AA transverse sectional view showing another embodiment of the grip of the golf club of the present invention. In FIGS. 9 (a) and 9 (b), the grip 3 attached to the base end of the shaft 1 of the golf club has 12 hollow spaces, and this hollow space is the circumference of the thick part of the grip. Are present at equal intervals, and when viewed in the AA cross section, they have an axially symmetrical arrangement circular cross section. Furthermore, the twelve hollow spaces have a length (see FIG. 9 (a)) sufficient to cover the grip portion of the player's hand in the longitudinal direction of the grip. The opening 6B of the hollow space 6 has a flange shape along the circumference of the end portion thereof, and the pressing section of the lid 5 into the opening 6B is also substantially T-shaped. It should be noted that the present embodiment can be adopted even if the grip and the lid are separately formed or integrally formed.

In the grip 3 of the golf club having the structure shown in FIGS. 9A and 9B, the bouncing putty filling portion inside the grip 3 made of rubber or the like has the characteristics shown in FIG. Even if the outer diameter is larger than this, it flexibly deforms when gripping the grip 3, so that it fits more closely to the hand in view of the conventional grip performance, and thus has better performance.

In the above embodiments, the grip 3 can be sold as an independent product or can be mounted in the club manufacturing process. Both can be adopted. The hollow space filled with putty is not limited to the embodiment. The shape (outer shape, inner diameter, shape and size of the thick portion), the number, and the arrangement method can be various. For example, it is not axisymmetric, rectangular shape is used instead of circular cross-section, one space is provided in the longitudinal direction, but two or more independent spaces are provided. There are various examples such as space having thickness and size (capacity). Further, it can be used as a grip other than the above-mentioned embodiments. Further, in the present embodiment, it is also included that the surface of the grip (on the side touched by the hand) has various shapes that are easy to grip and difficult to separate. It also includes various shapes that make it easy to attach the inside of the grip (the part that comes into contact with the shaft) and do not remove it.

A sponge impregnated with bouncing putty will be described. Instead of using the bouncing putty itself, it is also possible to insert one impregnated with urethane sponge or the like into the hollow space. When impregnating the urethane sponge, first, the silicon bouncing putty is made into a solution with a solvent (eg, ethyl acetate). A sponge impregnated with bouncing putty can be obtained by impregnating the impregnating liquid with a urethane sponge and drying for a predetermined time. This sponge has the advantage that it has a strong rigidity against impact due to the action of the bouncing putty when it is pressed, in addition to the inherent flexibility (deformability) of the sponge. The sponge is pushed into the hollow space without any clearance and closed with a lid.

When this sponge is filled, there are cases where the sponge has a deformability that is preferable and cases where it is not preferable, and it is necessary to use (form a grip) in consideration of such a case. Also, the relative relationship between the hardness and softness of the elastic material of the grip material may determine whether to use the impregnated sponge or the bouncing putty. In some cases, the impregnated sponge and bouncing putty are used together.

An external view of the impregnated sponge is shown in FIG. This sponge 200 is cut into a rectangular parallelepiped shape, and its size and shape are various depending on how to cut it. Such an impregnated sponge 200 is pushed into the hollow space and packed without a gap, and the lid is used as a grip. In addition to urethane sponge, it is also possible to impregnate other general materials such as plastic foam having a cellular property. Silicon type and boron type were used as the bouncing putty, but the application of other bouncing putties is not denied.

Further, as shown in FIG. 13A, there is also an example in which a material made of natural or synthetic rubber and a bouncing putty are mixed and then solidified to be used as the grip 50. Further, as shown in FIG. 13 (b), the grip itself has, for example, a three-layer structure (51, 52, 53), and a lower layer (a portion in contact with the object side such as a shaft) 51 and an upper layer 53 (a portion touched by the hand). ) And are made of natural or synthetic rubber, and the intermediate layer is a mixture of bouncing putty or rubber. There is also a method in which two layers 54 and 55 are used as shown in FIG. 13C, and the lower layer 54 is a mixed layer of natural or synthetic rubber and bouncing putty. 13 (a) to 13 (c) are all disclosed in material form.

[0038]

[Effect of device]

 According to the present invention, when the user grips the grip of the golf club, it is softly deformed to fit the entire finger comfortably and loosely, and the state is maintained even at the time of impact. There is an effect that can fully meet the.

[Brief description of drawings]

1A and 1B are a longitudinal sectional view and an arrow AA transverse sectional view showing an embodiment of a grip of a golf club of the present invention.

FIG. 2 is an external view embodiment diagram of a golf club of the present invention.

FIG. 3 is a view showing an injection procedure of the bouncing putty of the grip with lid of the present invention.

FIG. 4 is an embodiment diagram of a grip in the procedure of FIG.

FIG. 5 is a view showing an injection procedure of the bouncing putty of the lidless grip of the present invention.

FIG. 6 is an example view of a grip in the procedure of FIG.

FIG. 7 is a view showing a procedure of attaching a grip to the shaft of the present invention.

FIG. 8 is a characteristic diagram of the internal applied energy with respect to the deformation frequency of the bouncing putty of FIGS. 1 (a) and 1 (b).

9A and 9B are a longitudinal sectional view and an arrow AA transverse sectional view showing another embodiment of the grip of the golf club of the present invention.

10A and 10B are a partial vertical cross-sectional appearance view and a vertical cross-sectional view illustrating a conventional golf club and grip, respectively.

11A and 11B are diagrams illustrating grip gripping.

FIG. 12 is an external view of a sponge impregnated with the silicon bouncing putty of the present invention.

13 (a), (b) and (c) are views of another embodiment of the grip.

[Explanation of symbols]

 1 Shaft 3 Grip 4 Grip body 5 Grip body end face lid 6 Bouncing putty (filling part)

Claims (7)

[Scope of utility model registration request] 1. A grip for a golf club, wherein a grip body of the golf club is provided with an internal space, and the internal space is filled with bouncing putty. 2. A grip of a golf club, wherein an inner space is provided in a grip body of the golf club, and the inner space is filled with sponge impregnated with bouncing putty. 3. A grip for a golf club, wherein a plurality of axially symmetrically arranged longitudinal internal spaces having a predetermined cross-sectional shape are provided in a grip main body of the golf club, and the internal spaces are filled with bouncing putty. 4. A grip for a golf club, wherein a plurality of axially symmetrically arranged longitudinal internal spaces having a predetermined cross-sectional shape are provided in a grip body of the golf club, and the internal spaces are filled with sponge impregnated with bouncing putty. . 5. The grip according to claim 1, wherein the grip body is made of an elastic member. 6. A golf club head comprising a head fixed to the tip of a shaft and the grip of any one of claims 1 to 4 mounted and fixed to the base of the shaft. 7. A shaft having a hollow body, a head fixed to the tip of the shaft, and fixed to the base end of the shaft, having a hollow space in a thick portion, and being inserted into the hollow space through an opening of a grip end. And a rubber grip filled with bouncing putty (or sponge impregnated with the same), and an end surface lid part attached to the grip end for closing the opening and closing the end part of the shaft.