JPH08257171A - Golf club set - Google Patents

Abstract

PURPOSE: To enable the vibration attenuating effect of a golf club to be altered according to the club number by attaching a vibration attenuating member consisting of a material having modulus of elasticity lower than a head body and increasing the mass of the vibration attenuating member as the club number is lower. CONSTITUTION: The weight of a head body 7 is dispersed to the peripheral part by forming a recess 10 in the back part 7d of each head body 7 except for the peripheral part to increase the moment of inertia in driving a ball. A vibration attenuating member 13 consisting of a material having the modulus of elasticity smaller than the head body 7 is mounted to the bottom part 10a of the recess 10 with an adhesive. The mass of the vibration attenuating member 13 is increased according to the low count in such a way as long iron > middle iron > short iron. The head body 7 is manufactured with titanium and the vibration attenuating member 13 is made of aluminum.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf club set.

[0002]

2. Description of the Related Art Generally, an iron golf club set is composed of 2 to 4 long irons, 5 to 7 middle irons, and 8 to 10 irons and sand wedge short irons. . And
In the head body of the iron club, the hosel part and the face part are integrally formed with metal such as soft iron and stainless steel, and the loft angle is set larger as the count goes up from the long iron to the short iron.
In this type of head main body, it is known that by forming a recess in the back portion of the head main body, the moment of inertia of the head main body at the time of hitting the ball becomes large and the directionality of the ball is stabilized.

FIGS. 5 and 6 show a golf club disclosed in Japanese Patent Laid-Open No. 6-343722. In this golf club 1, a back portion 3 of a head body 2 is provided with a recessed portion 4 except its peripheral portion, and a face portion is provided. The thickness of the ball striking surface of the portion 5 is thin. According to such a configuration, the weight of the head body 2 is dispersed in the peripheral portion, and as a result, the moment of inertia of the head body 2 increases and the directionality of the hit ball is increased. Will be stable.

By the way, in the above golf club 1, a back member 6 made of a material having a smaller specific gravity than the head main body 2 is further embedded in the recess 4 provided in the back portion 3 to improve the shot feeling. And, the above-mentioned JP-A-6-343
In Japanese Patent No. 722, when soft iron, stainless steel, beryllium kappa or the like is used as the material of the head body 2, a titanium alloy, an aluminum alloy, a synthetic resin material or the like having a smaller specific gravity than these is exemplified as the material of the back member 6. However, for titanium alloys, aluminum alloys, and synthetic resin materials,
Since the elastic modulus is smaller than that of soft iron, stainless steel, or beryllium kappa, the back member 6 also functions as a vibration damping member that damps vibrations at the time of hitting a ball.

[0005]

However, in general, in a golf club set of an iron, a long iron hits a ball in order to secure a flight distance, and a long iron moves to a middle iron or a short iron. As you go up, the method of hitting will differ depending on the count, such as spinning the ball to control it at the target position.

Therefore, it is necessary to damp vibrations depending on the iron number, and in a long iron that hits the ball strongly, it is necessary to damp the vibrations so that the vibrations are not transmitted to the elbows or the like because large vibrations are generated at the time of hitting the ball. However, as the ball number goes up to middle iron and short iron, it will not hit the ball harder, so there is less need for vibration damping, rather damping of vibration is suppressed and the ball is easy to control while hitting with some feeling of hitting. Is desired.

Conventionally, there has been no golf club set of this type in which the vibration damping effect is changed depending on the count of the golf club. The present invention has been devised in view of the above circumstances, and an object thereof is to provide a golf club set in which the vibration damping effect is changed according to the golf club having a different hitting method depending on the count.

[0008]

In order to achieve such an object, in a golf club set according to a first aspect of the present invention, a vibration damping member made of a material having a smaller elastic modulus than the head main body is attached to a metal head main body. In addition, the mass of the vibration damping member is increased from a high count golf club to a low count golf club.

The invention according to claim 2 is the golf club set according to claim 1, characterized in that the vibration damping member is mounted on the back surface of the face portion of the head body. Is characterized in that the vibration damping member increases in wall thickness and increases in mass as the golf club from a high count golf club to a low count golf club increases.

[0010]

According to the inventions according to each of the claims, for example, in the case of a golf club set of an iron club, the player hits the ball with a long iron in order to secure a flight distance, and the player moves from a middle iron to a short iron. As the ball goes up, it tries to control the ball to the target position by making the ball spin, but with a long iron that hits the ball, the vibration damping member with a large mass attenuates the large vibration generated at the time of hitting the ball to the elbow. Prevents transmission of vibration.

Further, as the count goes up to the middle iron and the short iron, the ball is no longer struck and the vibration at the time of hitting becomes smaller, but as the count goes up, the mass of the vibration damping member also becomes smaller, The vibration damping effect of the vibration damping member is reduced, and the feel at impact is transmitted to the hand.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 and 2 are a rear view and a cross-sectional view of a head body of a 2 iron in an embodiment of a golf club set according to claims 1 to 3, and FIG. 3 is a cross section of a head body of a 5 iron. FIG. 4 and FIG. 4 respectively show cross-sectional views of the head body of the No. 8 iron. As in the conventional case, the head bodies 7 to 9 are all hosel portions 7a to 9a, face portions 7b to 9b, and sole portions 7c to 9c. Etc. are integrally molded with stainless steel, and the loft angle is set to increase as the count increases from long irons to middle irons and short irons.

In order to increase the moment of inertia at the time of hitting the ball, the back portions 7d to 9d of the head main bodies 7 to 9 are formed with the recesses 10 to 12 except the peripheral portions thereof. With the configuration, the weight of each head body 7 to 9 is distributed to the peripheral portion, and the directionality of the hit ball is stabilized. In this way, the recesses 10 are formed in the back portions 7d to 9d.
To 12 are formed, the face portions 7b to 9 are formed.
Although the ball striking surface of b is thin, each head body 7-9
In both cases, the thickness of the ball striking face is the same. The bottoms 10a to 12a of the recesses 10 to 12 have the same shape.

Thus, in addition to the same structure as the conventional one as described above, the present embodiment has bottoms 10a-12 of the recesses 10-12.
a, that is, on the back surface of the ball striking face of each face portion 7b to 9b,
The vibration damping members 13 to 15 made of a material having a smaller elastic modulus (Young's modulus) than the head bodies 7 to 9 are attached by an adhesive. The vibration damping members 13 to 15 are respectively
When the head bodies 7 to 9 are made of titanium (elastic modulus of 11,000 kgf / mm ² ), the vibration damping members 13 to 11 are plate-shaped members formed along the shapes of the bottoms 10 a to 12 a of the recesses 10 to 12. 15 is aluminum (elastic modulus 7,500 kgf
/ mm ² ), magnesium (elastic modulus 4,500 kgf / mm ² ), synthetic resin or rubber (including viscoelastic material), etc., and the head body 7-9 is made of stainless steel (elastic modulus 16,690 kgf / mm ² ). Beryllium copper (elastic modulus 13,000 kgf / mm ² ), soft iron (soft steel) (elastic modulus 2
When molded with a material such as 1,000 kgf / mm ² ), the vibration damping members 13 to 15 are preferably rubber, synthetic resin, magnesium, or titanium in addition to the above viscoelastic material.

As shown in FIGS. 1 to 4, in the vibration damping members 13 to 15, the head main body 8 of the No. 5 iron has a larger body than the head main body 9 of the No. 8 iron. On the other hand, the head body 7 of the second iron, that is, the head bodies of the irons of the present embodiment including the third, fourth, sixth, seventh, ninth and tenths (not shown) are short iron, middle iron and long iron. It is characterized in that the thickness of the vibration damping member increases and its mass increases in sequence as the iron count decreases toward the iron.

This embodiment is constructed in this way, and when hitting a ball with an iron club equipped with each of the head bodies 7 to 9, the player hits the ball with a long iron to secure a flight distance, and As the count goes up from the middle iron to the short iron, it tries to control the ball to the target position by spinning the ball, but with the 2 iron of Fig. 1 that hits the ball, a large vibration occurs at the time of hitting the ball. The thick vibration damping member 13 damps and prevents transmission of vibration to the elbow.

Further, as the iron number increases to the middle iron and the short iron, the hitting of the ball is eliminated and the vibration at the time of hitting is reduced, but to the 5 iron shown in FIG. 3 and the 8 iron shown in FIG. Since the vibration damping members 14 and 15 also become thinner as the count increases, the vibration damping effect of the vibration damping members 14 and 15 becomes small, and the feel at impact is transmitted to the hand.

As described above, in this embodiment, in the golf club set in which the hitting method differs depending on the count, by changing the thickness of the vibration damping member, the mass is gradually increased from the short iron to the long iron. Since the vibration damping effect was changed depending on the count of the golf club, with a long iron that hits the ball, it is possible to damp the large vibration generated at the time of hitting with the vibration damping member,
In addition, from the middle iron to the short iron which does not hit the ball strongly, the damping effect of vibration is reduced so that the feeling of hitting the ball at the time of hitting is transmitted to the hand, so that the control of the ball becomes easy.

In the above embodiment, the thickness of the vibration damping member was changed to change the mass sequentially from the short iron to the middle iron and the long iron as the iron number increased. Bottom 10a
It is also possible to change the size (area) of the vibration damping member to be attached to 12a to 12a to change the mass for each count. Further, in the above-described embodiment, the thickness of the vibration damping member of each head main body including the numbers 3, 4, 6, 7, 9, and 10 (not shown) is sequentially changed for each count, but short irons and middle irons are used. ，
The thickness of the vibration damping member may be changed for each long iron.

Thus, even with these structures, the intended purpose can be achieved as in the above-mentioned embodiment.
The present invention is also applicable to so-called wood golf club sets.

[0021]

As described above, according to the golf club set according to each of the claims, in the low count golf club which hits the ball, it is possible to damp a large vibration generated at the time of hitting by the vibration damping member. Also, in high-count golf clubs that do not hit the ball hard, it is easier to control the ball because the vibration damping is reduced and the feeling of hitting at the time of hitting is transmitted to the hand. .

[Brief description of drawings]

FIG. 1 is a rear view of a head body of a No. 2 iron in an embodiment of a golf club set according to claims 1 to 3. FIG.

FIG. 2 is a cross-sectional view of the head body shown in FIG.

FIG. 3 is a cross-sectional view of a head body of a No. 5 iron in one embodiment of the golf club set according to claims 1 to 3.

FIG. 4 is a cross-sectional view of a head main body of an 8 iron in an embodiment of the golf club set according to claims 1 to 3.

FIG. 5 is a perspective view of a head body of a conventional golf club.

6 is a cross-sectional view of the head body shown in FIG.

[Explanation of symbols]

 7,8,9 Head body 10,11,12 Recessed portion 13,14,15 Vibration damping member

Claims (3)

[Claims] 1. A vibration damping member made of a material having an elastic modulus smaller than that of the head body is mounted on a metal head main body, and the mass of the vibration damping member is changed from a high count golf club to a low count golf club. A golf club set characterized by being increased as it becomes. 2. The golf club set according to claim 1, wherein the vibration damping member is mounted on the back surface of the face portion of the head body. 3. The vibration damping member according to claim 1, wherein the vibration damping member has a wall thickness that increases from a high count golf club to a low count golf club to increase the mass. Golf club set.