JP2000014845A - Golf club set and shaft set for golf club set as well as grip member set for golf club set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a swing motion and to integrate the swing feel within a set. SOLUTION: A grip part 7a constituted by mounting a grip member to a shaft 4a is specified to <=25 mm in its outside diameter size D within a range of 50 to 200 mm from at least a grip end. The grip part 70 is formed to a gradually smaller diameter in the section in a range of 50 to 200 mm from at least the grip end and is specified to <=10/1000 in an average taper rate. The golf club set 1 is constituted by forming the respective golf clubs 2a to the shapes which are larger in the diameter and smaller in the taper rate as the overall lengths thereof longer and forming the grip parts 7a to the shapes which are smaller in the diameter and larger in the taper rate as the overall lengths are shorter.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf club capable of performing a simplified swing operation to obtain a good swing feeling, a golf club set in which the swing feeling in the set is harmonized, and a golf club set. The present invention relates to a golf club shaft and a set thereof, and a golf club grip member and a set thereof, which can obtain a good swing feeling.

[0002]

2. Description of the Related Art Golf is a sport having extremely high mentality, and it is extremely important to select a golf club that matches the feeling in making a score. In golf, many golf clubs are used. Each golf club is set based on the idea of changing the trajectory height and flight distance obtained when the player hits the ball with each club, and specifically, the length of each club, The functional goal is achieved by changing the angle of the hitting surface, usually called the loft angle.

[0003] That is, a golf club set includes a wood club from wood No. 1 to wood No. 11, for example.
It consists of iron clubs from irons to irons, pitching wedges, application wedges, sand wedges, and the like. The player selects up to a total of 13 golf clubs from these clubs and plays with 14 putters. As described above, the golf club set is set by combining a large number of golf clubs each manufactured by completely different designs so as to obtain a predetermined trajectory height and a flight distance.

In order to use a large number of golf clubs having completely different designs as described above, a golf player sets a golf club as an important option, "can all of the constituent golf clubs swing with the same feeling?" Is selected. Therefore, the golf club designer must consider how to design each of the constituent golf clubs in order to unify the swing feeling within a set of golf clubs on the premise of improving flight distance and stability. Proposition.

Heretofore, golf club designers have determined the rotational moment when a fulcrum is provided in a portion near the grip portion of each golf club or the amount of deflection or natural frequency of the shaft measured by fixing the grip portion. As a design element, they were trying to unify the feeling of weight and shaft bending when the player swings in the set. Specifically, the designer of the golf club “unified the feeling of swing” by appropriately adjusting the characteristics of the shafts, weight distribution, physical characteristic values and mechanical characteristic values of the heads of the constituent golf clubs by counting. Golf Club Set ".

FIG. 28 is a set configuration diagram showing specifications of the total length, the head loft angle, and the set flight distance value in a conventional standard golf club set. For example, 1
The number wood (driver) is designed to have a total length of 43 inches, a head loft angle of 12 °, and a set flight distance of 230 yards. The third wood (spoon) is designed to have a total length of 42 inches, a head loft angle of 16 °, and a set flight distance value of 200 yards. The 3 iron has a length of 38.5 inches and a head loft angle of 21
°, set flight distance value is 170 yards. The other specifications of the golf club are as shown in FIG.

[0007] On the other hand, in each golf club, continuous improvement has been attempted to make the ball more accurately reach a distant target. Recent golf clubs
Through research and development of new materials, for example, the weight of shafts and heads has been reduced, and this weight reduction has made it possible to use them even when the overall length is long. Golf clubs are becoming more and more prone to increasing the flight distance of the ball as the golf club becomes longer.

FIG. 29 is a set configuration diagram showing specifications of a total length, a head loft angle, and a set flight distance value in a golf club set having such a long golf club. In the golf club set, for example, No. 1 wood has a total length of 45 inches and a head loft angle of 10.5.
°, the flight distance is set to 250 yards. Three
The number wood is designed to have a total length of 42.5 inches, a head loft angle of 15 °, and a set flight distance value of 215 yards. The No. 3 iron is designed to have a total length of 39 inches, a head loft angle of 20 °, and a set flight distance of 180 yards. The other specifications of the golf club are as shown in FIG.

As described above, in the long golf club set, the difference in the overall length between the long golf club and the short golf club is larger than the standard golf club set. Therefore, in such a long golf club set, the above-mentioned golf player's option of "can all the golf clubs swing with the same feeling" has become increasingly important.

By the way, a conventional golf club set is
As shown in FIG. 30, there are provided various golf club sets in which the outer diameter of the grip portion is divided into thick, slightly thick, standard, and thin (ladies'). However, in these conventional golf club sets, each of the golf clubs constituting the set has a uniform grip portion having a uniform thickness and shape. In the drawing, d1, d2, and d3 are outer diameters of the grip portion at positions of 50 mm, 100 mm, and 200 mm from the grip end, respectively. Taper is an average taper rate of the grip portion.

For example, Japanese Patent Laid-Open Publication No. Hei 5-277221, entitled "Set of Golf Clubs Having Changing Grip Diameters" discloses a golf club set in which each club in the set has a different grip size and shape. ing. That is, in order to obtain the characteristics of the above-mentioned predetermined trajectory height and flight distance required for each constituent club, the prior application golf club set has a grip portion from a smaller golf club to a larger golf club. Are configured so that the outer diameter dimension of the increases linearly or non-linearly.

[0012]

SUMMARY OF THE INVENTION The present inventors have proposed various golf club sets (set B) which complain about a conventional general golf club set (set A) or a "golf club set having a unified swing feeling". )
A test was conducted in which many testers actually tried these. This result indicates that the golf club sets of set A and set B have different feelings of the weight of the head and the bending of the shaft when gripping or swinging.
Most disagree in terms of points, and set B
Said that the golf club set had a "unified swing feeling within the set".

[0013] However, many of the testers have set B
Regarding the golf club set, there was a slight difference from the set A in the point of "unification of the swing feeling in the set", but the opinion was "not felt to be unified". Many testers specifically cite the reason that "Some golfers feel uncomfortable in the way they move when swinging, depending on the length of the golf club, and they cannot feel consistency within the set." Was.

On the other hand, the above-mentioned golf club set of the prior application is constructed by combining golf clubs having different grip diameters in terms of structure. However, this prior golf club set is not configured from the viewpoint that "the entire set is constituted by a golf club with a unified swing feeling within the set".

As a result of intensive examination of the results of the above-mentioned test, the inventors of the present invention have noted, as a factor affecting the feeling of swing, "a change in the swing form which necessarily occurs with a difference in club length. There is a new point of view that is not in the conventional golf club design. That is, in order to unify the feeling of swing of each golf club included in the set, it is essential that the golf club set can smoothly perform the swing operation for golf clubs of all lengths. I came to the conclusion that there was.

The swing motion of a golf club is roughly divided into upper and lower body motions and arm motions. The upper and lower body movements are movements using large muscles of the body. On the other hand, the motion of the arm is a motion using relatively small muscles of the body. It is described that, in terms of exercise physiology, the movement of each part of the body is easier to be conscious of using a small muscle than to use a large muscle, and that the movement is more likely to be affected by an external force. In the swing motion of a golf club, the motion of the arm using relatively small muscles has a greater effect on the swing feeling. Therefore, in order to improve the feeling of swing, the golf club must be able to smoothly move the arm during the swing operation.

As a result of detailed analysis of the swing motion of the golf club, the present inventors have found that the motion of the player's arm is roughly classified into two types of motion, as shown in FIGS. 26 and 27. Was analyzed. That is, the first element operation in the swing operation of the golf club is, as shown in FIG. 26, an operation in which the player swings his arm up and down with his palms in front of his / her body. In the first element operation, an operation of bending the wrist in the thumb direction or the little finger direction (generally called a cock) as shown in FIG. Operation) is also performed.

The operation of the second element is as shown in FIG.
This is a motion in which the player swings his arm in the left and right direction with both palms facing in front of the body. In the second element operation, an operation of twisting the arm to the left or right (operations generally called pronation and supination of the arm) is also performed. For many players' swing motions, it appears that there are various types of arm motions, but the actual situation is that the ratio of the amount of motion between the first element motion and the second element motion is different. It's just

The present inventors have analyzed in detail how the movements of the arms change when a large number of testers carry a swing motion with golf clubs having different total lengths. . As a result, the swing motion of most testers is not conscious, and the first element motion amount (the motion of raising and lowering the arm up and down) is increased as the overall length of the golf club is shortened. It has been found that the longer the total length of the golf club is, the larger the second element movement amount (the operation of swinging the arm in the left-right direction) is.
The swing operation of the golf club is a horizontal swing operation (flat swing) as the overall length is longer, and a vertical swing operation (upright wing) as the overall length is shorter. In addition, since the beginner was not proficient in the swing motion of the golf club, it was found that the swing motion was large regardless of the overall length of the golf club.

The inventors of the present invention have stated that “the change in the length of the golf club may cause a change in the length of the arm when the swing operation is performed.
Based on the analysis result that the ratio of the two motion components (the first element operation and the second element operation) is different, the golf club and the golf club set can perform a smooth swing operation regardless of the length. Has concluded that long golf clubs should have characteristics that allow easy swinging in the left-right direction, and short golf clubs should have characteristics that allow easy swinging in the vertical direction.

That is, it is theorized from the viewpoint of ergonomics that the shape of the holding portion greatly affects the operability of a tool that is assumed to be used by being held by hand.
However, in golf clubs, even though various studies have been made on the shape of the grip itself, which is the gripping portion, the optimal grip shape in accordance with the change in arm movement that necessarily occurs with the change in length. It has not been considered yet.

For this reason, the present inventors conducted a number of testers with different skills in order to find out what shape the grip shape that would most easily perform a swing operation with respect to the length of each golf club. Various experiments were performed as subjects. The present inventors have obtained the following four findings as a result of this experiment.

(1) As the overall length of the golf club increases, the smoother the swing operation, the thicker the grip and the smaller the taper ratio. In the golf club, the smoother the swing operation is, the shorter the overall length is, the thinner the grip is and the larger the taper ratio is.

(2) By changing the grip shape according to the overall length of the golf club, a smooth swinging operation can be easily performed, and as a result, a golf club set having a uniform swing feeling regardless of the overall length is constituted. be able to.

(3) In the golf club, there is a linear correlation between the overall length and the thickness or the taper ratio of the grip at which the player feels that the player is most likely to swing smoothly.

(4) For beginners who are not proficient in the swing operation of the golf club, a smooth swing operation can be performed with a thicker grip and a smaller taper ratio regardless of the overall length of the golf club.

The inventors of the present invention have stated that, in the conventional golf club set, as described above, the reason that "the golf club sets do not always have a unified swing feeling in the set" is as follows. Each golf club set is due to the fact that the grip of each of the constituent golf clubs in the set is not optimized for the swing configuration. " From this conclusion, the present inventors have obtained an optimal grip shape according to the length of the golf club such that “the direction in which the arm movement is performed smoothly changes depending on the difference in the length of the golf club”. Thus, the swing operation of each of the constituent golf clubs is simplified, whereby the swing feeling is unified within the golf club set.

Accordingly, an object of the present invention is to provide a golf club capable of performing a smooth swing operation according to the length. Another object of the present invention is to provide a golf club set in which the golf clubs constituting the set can perform a smooth swing operation in accordance with their respective lengths, thereby achieving a unified swing feeling within the set. And

Another object of the present invention is to provide a golf club shaft constituting a golf club capable of performing a smooth swing operation according to the length. Further, the present invention is for a golf club constituting a golf club set in which each golf club constituting the set can perform a smooth swinging operation according to its length so as to unify the swing feeling within the set. It is intended to provide a set of shafts.

Still another object of the present invention is to provide a golf club grip member constituting a golf club capable of performing a smooth swing operation according to the length. Further, the present invention is for a golf club constituting a golf club set in which each golf club constituting the set can perform a smooth swinging operation according to its length so as to unify the swing feeling within the set. It is an object to provide a set of grip members.

[0031]

In order to achieve the above-mentioned object, a golf club according to the present invention has a grip portion whose axial length is at least 50 mm to 20 mm from the grip end.
The average outer diameter of the portion having a diameter of 0 mm is set to 25 mm or more. The golf club has an average taper ratio of 10/1 at least in a region where the grip portion is at least 50 mm to 200 mm in the axial direction from the grip end.
000 or less.

Therefore, according to the golf club of the present invention, since the grip diameter is made large, it becomes difficult to swing the arm in the vertical direction regardless of the overall length, but the swinging motion in the horizontal direction is smooth. Will be performed.
In the golf club, the swing operation is simplified, and, for example, even a beginner can easily perform the swing operation and obtain a good swing feeling.

Further, in the golf club set according to the present invention, as the length of each golf club set increases, at least a portion of the grip portion 50 mm to 200 mm in the axial direction from the grip end gradually increases its average outer diameter. Combined to have a large diameter. Further, the golf club set is combined such that the longer the overall length of each set-constituting golf club, the more gradually the average taper ratio of at least the portion of the grip portion from 50 mm to 200 mm in the axial direction from the grip end gradually decreases. Become.

Therefore, according to the golf club set according to the present invention, for each golf club having a different overall length, the swinging motion in the left-right direction can be performed smoothly for a long golf club and for a short golf club. The cock movement in the vertical direction can be performed smoothly, and the swing feeling as a whole set can be unified.

Further, in the golf club shaft according to the present invention, the average outer diameter of at least 50 mm to 200 mm in the axial direction from the grip end of the grip part is reduced to the average outer diameter of the entire grip part. The outer diameter is not thinner than 6 mm. In addition, the golf club shaft has an axial direction at least from a grip end of a part constituting the grip portion.
The portion between 0 mm and 200 mm has an average taper of 10
/ 1000 or less.

Therefore, according to the golf club shaft of the present invention, the arm swing operation in the left-right direction and the cock operation in the up-down direction can be smoothly performed according to the entire length, and a good swing feeling can be obtained. Enables production of golf clubs.

Further, in the set of golf club shafts according to the present invention, as the length of each shaft increases, at least a portion of the grip portion 50 mm to 200 mm in the axial direction from the grip end gradually increases its average outer diameter. Combined to have a large diameter. Further, the set of golf club shafts is combined such that the longer the overall length of each shaft, the more gradually the average taper rate of at least the portion of the grip portion 50 mm to 200 mm in the axial direction from the grip end gradually decreases. .

Therefore, according to the set of golf club shafts according to the present invention, for each golf club having a different total length, the arm swinging operation in the left-right direction can be smoothly performed for a long golf club and the golf club can be short. With respect to the golf club, the cock operation in the up and down direction can be performed smoothly, and a golf club set in which the swing sensation of the entire set is unified can be manufactured.

Further, in the golf club grip member according to the present invention, the average thickness at least in the axial direction of 50 mm to 200 mm from the grip end is 3 mm or more before being mounted on the shaft. . The golf club grip member is at least 50 mm to 200 m in the axial direction from the grip end.
The average outer diameter of the part m is 25 mm or more before being mounted on the shaft.

Therefore, according to the golf club grip member of the present invention, the swinging motion in the horizontal direction and the cock motion in the vertical direction can be smoothly performed according to the overall length, and a good swing feeling can be obtained. Enables production of golf clubs.

Further, in the set of golf club grip members according to the present invention, the average outer diameter of a portion at least 50 mm to 200 mm in the axial direction from the grip end gradually increases as the length of each club increases. It is combined to have a diameter. In addition, the set of golf club grip members is combined so that the average taper ratio at least in the axial direction from 50 mm to 200 mm from the grip end gradually decreases as each grip member increases the overall length of the club. .

Therefore, according to the set of the grip members for golf clubs according to the present invention, for each golf club having a different overall length, the arm swing operation in the left-right direction can be performed smoothly for a long golf club. For a short golf club, the cock operation in the up and down direction can be performed smoothly, and a golf club set with a uniform swing feeling as a whole set can be manufactured.

[0043]

Embodiments of the present invention will be described below in detail with reference to the drawings. The golf club set 1 of the embodiment has a large number of iron clubs 2a in FIG.
2 to 2n. Golf club set 1
As shown in the figure, as each golf club 2a to 2n has a smaller count, a longer golf club 2a has a grip portion 7a having a larger diameter and a smaller taper ratio, and a shorter golf club having a larger count. 2n, the grip portion 7n is configured to have a gradually smaller diameter and a larger taper ratio. Of course, although not shown, the golf club set 1 is similarly configured for a wood club set. Note that the golf club set 1 does not include a putter.

Each of the golf clubs 2 has a basic configuration similar to that of a normal golf club, and includes a club head 3, a shaft 4, and a grip member 5, as shown in FIG. The golf club 2 has a head portion 6 in which a hosel 3a of a club head 3 is attached to a distal end portion of a shaft 4 via a socket 3b. The golf club 2 constitutes a grip portion 7 by attaching the grip member 5 to the rear end of the shaft 4. The club head 3 is made of a metal material such as persimmon or stainless steel or F
It is formed of a resin material such as RP, and the iron club is formed of a metal material or a resin material such as FRP.

The shaft 4 is also made of a pipe material made of a metal material or a resin material such as FRP, and has an outer diameter gradually increasing from the front end to the rear end. The shaft 4 defines the overall length L of each golf club 2 as shown in FIG. Specifically, the overall length L of the golf club 2 is the length from the heel surface of the club head 3 to the grip end. The golf club 2 is appropriately formed of a curved surface or a plurality of curved surfaces having a substantially uniform round of the sole. The intersection between the sole surface and the heel surface is used as a reference point.

The grip member 5 is formed of a material having various characteristics required for the grip portion 7 such as water repellency, abrasion resistance, flexibility, air permeability and shock absorption. The grip member 5 is made of, for example, EPDM or S
It is molded from a rubber material obtained by mixing a synthetic rubber such as BR or a synthetic resin material such as urethane resin. The grip member 5 has a generally cylindrical shape in which a fitting hole into which the shaft 4 is fitted is formed on one end side and a small hole for air vent is formed on the other end side by, for example, compression molding or injection molding. And molded. The grip member 5 includes a shaft 4 on which an adhesive tape 8 is wound in advance.
The grip part 7 is configured by being mounted on the grip part 7.

As shown in FIG. 3 (B), the grip member 5 is formed to have a substantially circular circular shaft fitting hole 5a and a cylindrical cross section. As shown in FIG. 2A, the grip member 5 has a stopper portion 5b in which a portion of the grip end 9 is slightly swelled to a large diameter. The grip member 5 forms a grip portion 7 having a substantially circular cross section as shown in FIG. 4C by fitting the shaft 4 into the shaft fitting hole 5a. When the grip member 5 is mounted on the shaft 4, the grip member 7 forms a tapered grip portion 7 whose outer diameter gradually decreases from the stopper portion 5 b toward the distal end portion.

For example, when the grip member 5 is mounted on the shaft 4 having the same diameter as that of the grip portion 7, the thickness of the grip member 5 is gradually reduced from the grip end 9 toward the distal end. Thereby, the above-described taper is configured. Further, when the grip member 5 is mounted on the shaft 4 having a configuration in which the grip portion 7 is gradually reduced in diameter from the grip end 9 side toward the distal end side, for example, the thickness of the grip member 5 is increased. Is made substantially constant so that the above-described taper is formed.

The inner diameter Gd of the shaft hole 5 a of the grip member 5 is slightly smaller than the outer diameter Sd of the shaft 4. The grip member 5 has an average thickness t before the shaft 4 is fitted into the shaft hole 5a. The grip member 5 has a shaft hole 5 as shown in FIG.
a, the difference between the inner diameter of the shaft 4 and the outer diameter of the shaft 4 and the adhesive tape 8
The shaft fitting hole 5a has its inner diameter Gd expanded to Sd + Δx depending on the winding amount of the shaft.
The grip portion 7 having the taper rate T is configured. Grip member 5
As described in detail later, those having different outer diameters D and different taper ratios T according to the respective numbers are used.

The grip member 5 shown in FIG. 4 has a cylindrical cross-sectional shape after a back line 5c formed of an axial rib-like convex portion is formed in a part of the shaft fitting hole 5a. Be formed. Also in the grip member 5, a portion of the grip end 9 is bulged to a slightly larger diameter to form a stopper portion 5b. The grip member 5 is formed so as to be tapered so that the outer diameter thereof gradually decreases from the stopper portion 5b toward the distal end portion. When the shaft 4 is fitted into the shaft fitting hole 5a, the grip member 5 has a back surface portion corresponding to the back line 5c, as shown in FIG. Constitutes the grip portion 7 having a substantially elliptical shape.

The grip member 5 is formed, for example, in a tape shape from the above-described material, and forms the grip portion 7 by being spirally wound around the outer periphery of the shaft 4 on which the adhesive tape 8 is wound in advance. It may be. In addition, the grip member 5 may be a member that forms the grip portion 7 by outsert molding the above-described material into, for example, the shaft 4 that has been subjected to a ground treatment.

By the way, in the golf club 2, the grip portion 7 is gripped by the player in various grip forms. 5 to 7 are explanatory diagrams of an interlock grip using a general right-handed player. As shown in FIG. 5, the interlock grip is a grip form in which the little finger of the right hand and the forefinger of the left hand are joined together to form a connecting portion between the left hand and the right hand. Generally, the golf club 2 is gripped by the palm grip with the left hand of the player. That is, as shown in FIG. 6, the palm grip is a form in which the left hand is applied to the grip portion 7 from the lower part of the little finger of the palm to the index finger portion, and the palm is gripped so as to wrap the grip portion 7. In general, the golf club 2 has a grip 7 gripped by a finger grip with the right hand of the player. That is, as shown in FIG.
Is applied to the second joint of the three fingers of the ring finger, the middle finger, and the index finger, and the grip portion 7 is gripped by the finger.

As for the form of the grip, the palm part and the finger grip described above are used to hold the grip part 7 with both left and right hands, but the right hand little finger is superimposed on the space between the left index finger and the middle finger, and the left and right hands are placed. Overlapping grips that form a connecting portion are also commonly used. As another form of the grip, a baseball grip that does not particularly connect the left hand and the right hand is also generally used. In the left-handed player, the grip 7 is gripped with the left and right hands reversed with respect to the right-handed player described above.

In the golf club 2, when the player holds the grip portion 7 in the above-described grip form, the player feels the shape and thickness of the grip portion 7 at different portions of the left hand and the right hand. That is, the golf club 2 makes the left hand feel the shape and the sense of thickness in the region (left hand sense region) 10 from the middle finger to the little finger, which is indicated by the black region in FIG. In addition, the golf club 2
The sense of the shape and the sense of thickness by the right hand is felt by the region (right hand sense region) 11 corresponding to the middle finger and the ring finger shown by the black region in FIG. 7 and the index finger.

FIG. 8 is an explanatory view of the dimensions of the grip portion 7 employed when designing the golf club 2 based on the above considerations. Each part of the grip part 7 is a part P1 corresponding to the middle finger of the left hand from the point P0 of the grip end 9.
The interval up to this point is defined as a first interval Y1, and the outer diameter at this portion P1 is defined as a first outer diameter D1. Each part of the grip part 7 is located at a point P0 of the grip end 9.
The distance from the position P2 to the site P2 corresponding to the ring finger of the right hand, which is the connecting portion of the left and right hands, is defined as a second interval Y2.
Is defined as a second outer diameter D2. Furthermore, in each part of the grip part 7, the distance from the point P0 of the grip end 9 to the part P3 corresponding to the index finger of the right hand is defined as a third distance Y3, and the outer diameter of the part P3 is defined as D3.

FIG. 9 is a diagram showing a list of 20 testers M-1 to M-20 who have performed a test hit test described later. In the test hitting test, a beginner group (group A) of 6 persons (M-1 to M-6), an intermediate group (group B) of 12 persons (M-7 to M-18) and 2 persons (M -19, M-20) advanced group (group C) participated. Each tester M-1
As for M-20, the dimensions of each of the above-described portions when the grip portion 7 was gripped were measured, and the results were as shown in FIG.

As shown in the glove size column, each part when the examiners M-1 to M-20 grip the grip part 7 has individual differences in hand size as shown in the column of glove size, but the first interval Y1 is substantially the same. 50 mm, Y2 is approximately 100 mm, Y3 is approximately 200
mm. Therefore, the evaluation of the golf club 2 is
This was performed by calculating the displacement of the outer diameter dimension between the point P1 and the point P3, that is, the taper ratio T, and evaluating those values.

As described above, the grip member 5 has a substantially circular shaft fitting hole 5a and a shaft fitting hole 5a.
In which a back line 5c is formed. When the grip member 5 having the back line 5c is used, the grip portion 7 has a substantially elliptical cross-section in which a back portion corresponding to the back line 5c is bulged along the axial direction. Accordingly, for the grip portion 7, the length of the major axis and the minor axis is measured, and the average value is defined as the outer diameter dimension D.

As described above, the inventors have obtained an optimal grip shape according to the length of the golf club so as to change the direction in which the arm moves smoothly according to the difference in the length of the golf club. It has been found that the swing feeling can be unified within a set of golf clubs.
Based on such knowledge, the inventors manufactured a test golf club set 1A whose specifications are shown in FIG. 10, and used the testers M-1 to M-20 described above to set the overall length L of the golf club 2.
A test hit test was performed on the shape of the grip portion 7.

In the golf club set 1A, each golf club 2 has a maximum length L of 54 inches (137).
1.6mm), minimum dimension is 34 inches (863.6m)
m) was constituted by eleven pieces with a 2-inch pitch.
Further, each golf club 2 has a grip portion 7 thereof.
The outer diameter D1 of the point P1 is changed in the range from the maximum diameter of 36 mm to the minimum diameter of 20 mm, the outer diameter D2 of the point P2 is changed in the range of the maximum diameter of 36 mm and the minimum diameter of 18 mm, and the outer diameter D3 of the point P3 is further changed. The maximum diameter is 36m
m, the minimum diameter was changed in the range of 18 mm. Furthermore, each golf club 2 was configured such that the taper ratio T from the point P1 to the point P3 was changed in the range of 0 to 40/1000. Golf club set 1A has a total length L
The golf club 2 having a length of 42 inches or more was formed of a wood-type club, and the golf club 2 having a total length L of 40 inches or less was formed of an iron-type club.

In the test hit test of each golf club set 1,
Using the evaluation table 12 shown in FIG.
Each of the golf clubs 2 having different outer diameters of the grip portions 7 corresponding to the entire length L of the golf clubs -1 to M-20 swings several times, and feels that the grip portions 7 are most easily swung.
The average outer diameter of was confirmed. In the evaluation table 12, as shown in the figure, the carrier, handicap, and glove size for each of the testers M-1 to M-20 were made clear.

As a result of the above-described test hitting test for each golf club set 1, the evaluation data shown in FIGS. 12 to 23 were obtained. FIG. 12 shows a point P1 (from grip ends 9 to 5) corresponding to each golf club 2 having a different overall length L.
The data of the outer diameter dimension D1 (average value) of the grip portion 7 at which the testers M-1 to M-20 felt that the swing operation was the easiest at the respective positions (0 mm position) was shown in a list. FIG. 6 is a diagram showing a list of correlations between the outer diameter dimension D1 of the grip portion 7 and the overall length L of the golf club 2 obtained by regression analysis. FIG.
FIG. 7 is a diagram plotting the results of the above-described test hitting test with the vertical axis representing the outer diameter dimension D1 of the grip portion 7 and the horizontal axis representing the total length L of the golf club 2.

[Results of Group A (Beginner)] In the wood type golf club having a total length of 54 inches, the outer diameter D1
Was a maximum of 32.5 mm and a minimum of 28.0 mm, and the average was 30.5 mm. In a wood-type golf club having a total length of 42 inches, the outer diameter D1 is up to three.
2.0 mm, minimum 27.3 mm, average 29.4
mm was obtained. Further, in an iron-type golf club having a total length of 40 inches, the outer diameter dimension D1 is up to 31.
0 mm, minimum 27.3 mm, average 29.1 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D1 was 29.5 mm at the maximum and 26.1 mm at the minimum, and the average was 28.3 mm. For the outer diameter D1, the linear regression equation for the maximum value has a slope of 0.15 and an intercept of 25.1, the linear regression equation for the minimum value has a slope of 0.09 and an intercept of 23.3, and the primary regression equation for the average value has a The regression equation has a slope of 0.11 and an intercept of 24.5.
Met.

[Results of Group B (Intermediate)] In the wood type golf club having a total length of 54 inches, the outer diameter D1
Was a maximum of 34.0 mm and a minimum of 26.8 mm, and the average was 30.1 mm. In a wood-type golf club having a total length of 42 inches, the outer diameter D1 is up to three.
2.3 mm, minimum 24.5 mm, average 27.3
mm was obtained. Further, in an iron-type golf club having a total length of 40 inches, the outer diameter dimension D1 is up to 31.
7 mm, minimum 24.0 mm, average 26.7 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D1 was a maximum of 31.3 mm and a minimum of 23.0 mm, and the average was 25.5 mm. For the outer diameter dimension D1, the linear regression equation for the maximum value has a slope of 0.14 and an intercept of 26.2, the linear regression equation for the minimum value has a slope of 0.20 and an intercept of 16.0, and the primary regression equation for the average value has a The regression equation has a slope of 0.25 and the intercept is 26.
It was 2.

[Results of Group C (Advanced)] In the wood type golf club having a total length of 54 inches, the outer diameter D1
Was a maximum of 24.0 mm and a minimum of 23.0 mm, and the average was 23.5 mm. Further, in a 42-inch long wood-type golf club, the outer diameter D1 is up to two.
3.5 mm, minimum 23.0 mm, average 23.3
mm was obtained. Further, in an iron type golf club having a total length of 40 inches, the outer diameter dimension D1 is at most 23.
0 mm, minimum 22.5 mm, average 22.8 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D1 was a maximum of 23.5 mm, a minimum of 23.0 mm, and the average was 23.3 mm. For the outer diameter dimension D1, the linear regression equation for the maximum value has a slope of 0.04 and the intercept 22.0, the linear regression equation for the minimum value has a slope of 0.01 and an intercept of 22.6, and The regression equation has a slope of 0.02 and an intercept of 22.3
Met.

FIG. 14 shows testers M-1 to M-20 at point P2 (position 100 mm from grip end 9) corresponding to golf clubs 2 having different overall lengths L.
Lists the data of the outer diameter D2 (average value) of the grip portion 7 which felt that the swing operation was most easy, and the outer diameter D2 of the grip portion 7 obtained by regression analysis of these result data and the golf club. FIG. 4 is a diagram showing a list of correlations with the overall length L of a club 2;

[Results of Group A (Beginner)] In the wood type golf club having a total length of 54 inches, the outer diameter D2
Was a maximum of 32.5 mm and a minimum of 28.0 mm, and the average was 30.5 mm. Further, in a wood-type golf club having a total length of 42 inches, the outer diameter D2 is 3 at the maximum.
1.5 mm, minimum 26.1 mm, average 28.8
mm was obtained. Further, in an iron type golf club having a total length of 40 inches, the outer diameter D2 is 31.
0 mm, minimum 26.3 mm, average 28.6 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D2 was 28.7 mm at the maximum and 25.1 mm at the minimum, and the average was 27.5 mm. For the outer diameter D2, the linear regression equation for the maximum value has a slope of 0.19 and the intercept 23.1, the linear regression equation for the minimum value has a slope of 0.16, and the intercept of 19.9. The regression equation has a slope of 0.16 and an intercept of 22.1
Met.

[Results of Group B (Intermediate)] In the wood type golf club having a total length of 54 inches, the outer diameter D2
Was a maximum of 34.0 mm and a minimum of 26.8 mm, and the average was 30.1 mm. Further, in a wood-type golf club having a total length of 42 inches, the outer diameter D2 is 3 at the maximum.
1.5 mm, minimum 23.8 mm, average 26.5
mm was obtained. Further, in an iron type golf club having a total length of 40 inches, the outer diameter D2 is 30.30 max.
9mm, minimum 23.2mm, average 25.8mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D2 was 30.1 mm at the maximum and 22.1 mm at the minimum, and the average was 24.3 mm. For the outer diameter D2, the linear regression equation for the maximum value has a slope of 0.21 and an intercept of 22.8, and the linear regression equation for the minimum value has a slope of 0.25 and an intercept of 13.3. The regression equation had a slope of 0.32 and an intercept of 13.0.

[Results of Group C (Advanced)] In the wood type golf club having a total length of 54 inches, the outer diameter D2
Was 20.5 mm at the maximum and 19.5 mm at the minimum, and the average was 20.0 mm. Further, in a 42-inch wood-type golf club, the outer diameter D2 is 2 at the maximum.
0.5 mm, minimum 20.0 mm, average 20.3
mm was obtained. Further, in an iron-type golf club having a total length of 40 inches, the outer diameter D2 is 20.
0 mm, minimum 19.5 mm, average 19.8 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the maximum and minimum outer diameters D2 were 20.5 mm, respectively, and the average was 20.5 mm. As for the outer diameter D2, the linear regression equation for the maximum value has a slope of 0.03 and an intercept of 19.2, and the linear regression equation for the minimum value has a slope of -0.01 and an intercept of 20.6;
The linear regression equation of the average value was slope 0.01 and intercept 19.9.

FIG. 15 shows testers M-1 to M-1 at point P3 (position 200 mm from grip end 9).
-20 shows a list of data of the outer diameter D3 (average value) of the grip part 7 which felt that the swing operation was most easy, and the outer diameter of the grip part 7 obtained by regression analysis of these result data. D3 and Golf Club 2
FIG. 3 is a diagram showing a list of correlations with the total length L of the hologram.

[Results of Group A (Beginner)] In the wood type golf club having a total length of 54 inches, the outer diameter D3
Was a maximum of 32.5 mm and a minimum of 27.9 mm, and the average was 30.5 mm. In a 42-inch wood-type golf club, the outer diameter D3 is 3 at the maximum.
1.2 mm, minimum 25.9 mm, average 28.4
mm was obtained. Further, in an iron type golf club having a total length of 40 inches, the outer diameter D3 is 30.30 max.
6 mm, minimum 26.0 mm, average 28.2 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D3 was a maximum of 28.5 mm and a minimum of 24.8 mm, and the average was 27.2 mm. As for the outer diameter dimension D3, the linear regression equation relating to the maximum value has a slope of 0.20 and an intercept of 22.3, the linear regression equation relating to the minimum value has an inclination of 0.17 and an intercept of 19.1, and the primary regression equation relating to an average value has a linear value. The regression equation has a slope of 0.17 and an intercept of 21.3.
Met.

[Results of Group B (Intermediate)] In the wood type golf club having a total length of 54 inches, the outer diameter D3
Was a maximum of 34.0 mm and a minimum of 26.8 mm, and the average was 30.1 mm. In the case of a 42-inch wood-type golf club, the outer diameter D3 is up to two.
9.8 mm, minimum 23.4 mm, average 25.8
mm was obtained. Further, in an iron type golf club having a total length of 40 inches, the outer diameter D3 is 28.
9mm, minimum 22.7mm, average 25.0mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D3 was 27.1 mm at the maximum and 21.2 mm at the minimum, and the average was 22.9 mm. For the outer diameter D3, the linear regression equation for the maximum value has a slope of 0.38 and an intercept of 13.9, the primary regression equation for the minimum value has a slope of 0.29 and an intercept of 11.2, and The regression equation had a slope of 0.39 and an intercept of 9.5.

[Results of Group C (Advanced)] In the wood type golf club having a total length of 54 inches, the outer diameter D3
Was a maximum of 19.0 mm and a minimum of 18.5 mm, and the average was 18.8 mm. In a 42-inch wood-type golf club, the outer diameter D3 is 1 at the maximum.
9.5 mm, minimum 18.5 mm, average 19.0
mm was obtained. Further, in an iron type golf club having a total length of 40 inches, the outer diameter dimension D3 is at most 19.
0 mm, minimum 18.5 mm, average 18.8 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D3 was a maximum of 19.5 mm and a minimum of 18.5 mm, and the average was 19.0 mm. For the outer diameter D3, the primary regression equation for the maximum value has a slope of 0.00 and an intercept of 19.1, the linear regression equation for the minimum value has a slope of 0.01 and an intercept of 18.4, and the primary regression equation for the average value is The regression equation has a slope of 0.00 and an intercept of 18.8
Met.

FIG. 16 shows the average outer diameter Dave and the total length L of the golf club 2 at points P1 to P3 of the grip portion 7 at which each of the testers M-1 to M-20 felt that the swing operation was most easy. FIG. 6 is a diagram showing a list of correlations of the above. The average outer diameter Dave is the average of the outer diameters D1 to D3 at the points P1 to P3 for each constituent golf club.
ve = (D1 + D2 + D3) / 3 is the outer diameter dimension obtained.

FIG. 17 shows a beginner group (group A).
FIG. 3 is a diagram plotting the test results of the above, with the average outer diameter dimension Dave described above as the vertical axis and the total length L of the golf club 2 as the horizontal axis. FIG. 18 also shows the average outer diameter Da of the test results of the intermediate class (group B).
FIG. 3 is a diagram in which ve is plotted on the vertical axis, and the total length L of the golf club 2 is plotted on the horizontal axis. Further, FIG. 19 shows the average outer diameter Dave as the vertical axis and the horizontal axis represents the total length L of the golf club 2 in the test results of the advanced group (group C).
FIG.

[Results of Group A (Beginner)] In the wood type golf club having a total length of 54 inches, the average outer diameter Dave was 32.5 mm at the maximum, 28.0 mm at the minimum, and 30.5 mm overall. The result was obtained. In a 42-inch wood-type golf club, the average outer diameter Dave is 31.6 mm at the maximum and 26.4 mm at the minimum.
And the result was that the overall average was 28.9 mm. Further, in an iron type golf club having a total length of 40 inches, the average outer diameter Dave is 30.9 mm at the maximum and 2 at the minimum.
6.5 mm, and the overall average was 28.6 mm. In an iron-type golf club having a total length of 34 inches, the average outer diameter Dave is 28.9 mm at the maximum and 2 at the minimum.
5.3 mm, and the overall average was 27.7 mm. The average outer diameter dimension Dave is such that the linear regression equation for the maximum value has a slope of 0.18 and an intercept of 23.5, and the linear regression equation for the minimum value has a slope of 0.14 and an intercept of 20.8, and The linear regression equation had a slope of 0.15 and an intercept of 22.6.

[Results of Group B (Intermediate)] In the wood type golf club having a total length of 54 inches, the average outer diameter Dave was 34.0 mm at the maximum, 26.8 mm at the minimum, and 30.1 mm overall. The result was obtained. In a 42-inch wood-type golf club, the average outer diameter Dave is 31.2 mm at the maximum and 23.9 mm at the minimum.
And the result was that the overall average was 26.5 mm. Further, in an iron-type golf club having a total length of 40 inches, the average outer diameter Dave is 30.5 mm at maximum and 2 mm at minimum.
The result was 3.3 mm, and the overall average was 25.8 mm. In an iron type golf club having a total length of 34 inches, the average outer diameter Dave is 29.5 mm at the maximum and 2 at the minimum.
2.1 mm, and the overall average was 24.2 mm. The average outer diameter dimension Dave is such that the linear regression equation for the maximum value has a slope of 0.24 and an intercept of 21.0, the linear regression equation for the minimum value has a slope of 0.25 and an intercept of 13.6, and The linear regression equation had a slope of 0.32 and an intercept of 13.1.

[Results of Group C (Advanced)] In the wood type golf club having a total length of 54 inches, the average outer diameter Dave was 21.2 mm at the maximum, 20.3 mm at the minimum, and 20.8 mm in the overall average. The result was obtained. Further, in the wood type golf club having a total length of 42 inches, the average outer diameter Dave was 20.8 mm at both the maximum and minimum, and the overall average was 20.8 mm. Further, in an iron type golf club having a total length of 40 inches, the average outer diameter Dave is 20.5 mm at the maximum and 20.3 mm at the minimum.
mm, and the overall average was 20.4 mm. In an iron type golf club having a total length of 34 inches, the average outer diameter Dave is 21.0 mm at the maximum and 20.8 mm at the minimum.
mm, and the overall average was 20.9 mm. The average outer diameter Dave is such that the linear regression equation for the maximum value has a slope of 0.03 and an intercept of 19.8, and the linear regression equation for the minimum value has a slope of -0.01 and an intercept of 20.9. The linear regression equation for 0.01, intercept 20.
It was 3.

FIG. 20 shows the relationship between the average taper Tave of the points P1 to P3 of the grip portion 7 and the total length L of the golf club 2 which the testers M-1 to M-20 felt were most likely to perform the swing operation. It is the figure which showed the correlation as a list. Note that the average taper ratio Tave is a gradient of a linear regression equation obtained based on the difference between the outer diameters D1 to D3 at the points P1 to P3 for each golf club.

FIG. 21 is a diagram plotting the test results of the beginner group (group A) with the average taper ratio Tave described above as the vertical axis and the total length L of the golf club 2 as the horizontal axis. FIG. 22 shows an intermediate level group (group B).
FIG. 7 is a graph plotting the test results in the same manner, with the average taper ratio Tave as the vertical axis and the total length L of the golf club 2 as the horizontal axis. FIG. 23 also shows the average taper ratio Ta for the test results of the advanced user group (group C).
FIG. 3 is a diagram in which ve is plotted on the vertical axis, and the total length L of the golf club 2 is plotted on the horizontal axis.

[Results of Group A (Beginner)] In the wood type golf club having a total length of 54 inches, the average taper Tave is 0.001 at the maximum and 0.000 at the minimum, and the overall average is 0.000. The result was obtained. In addition, total length 42
In an inch wood type golf club, the average taper Tave is a maximum of 0.008 and a minimum of 0.004,
A result with an overall average of 0.006 was obtained. Furthermore, total length 40
In an inch-type iron type golf club, the average taper ratio Tave was 0.009 at the maximum and 0.003 at the minimum, and a result of 0.005 as the whole average was obtained. In an iron-type golf club having a total length of 34 inches, the average taper ratio Tave was 0.009 at the maximum and 0.003 at the minimum, and the average was 0.007. The average taper ratio Tave is obtained by calculating the linear regression equation relating to the maximum value with a slope of −0.0.
0005, the intercept is 0.026, and the linear regression equation relating to the minimum value is −0.0002, the intercept is 0.010,
The linear regression equation for the average value was slope -0.0004 and intercept 0.019.

[Results of Group B (Intermediate)] In the wood-type golf club having a total length of 54 inches, the average taper Tave was 0.001 at the maximum and 0.000 at the minimum, and the average was 0.000. I got In a 42-inch wood-type golf club, the average taper ratio T
ave was 0.017 at the maximum and 0.006 at the minimum, and the result was 0.009 as the overall average. Furthermore, in the iron type golf club having a total length of 40 inches, the average taper ratio Tave was 0.019 at the maximum and 0.008 at the minimum, and the result was 0.011 in the overall average. In an iron type golf club having a total length of 34 inches, the average taper ratio Tav
e was 0.028 at the maximum and 0.012 at the minimum, and the overall average was 0.017. And the average taper rate Ta
ve is a linear regression equation relating to the maximum value having a slope of −0.001.
5. The intercept was 0.081, the linear regression equation for the minimum value was -0.0006, the intercept was 0.031, and the linear regression equation for the average value was -0.0009, and the intercept was 0.046.

[Results of Group C (Advanced)] In the wood-type golf club having a total length of 54 inches, the average taper Tave was 0.031 at the maximum, 0.027 at the minimum, and 0.029 at the overall average. I got In a 42-inch wood-type golf club, the average taper ratio T
ave was 0.031 at the maximum and 0.021 at the minimum, and the result was 0.026 in the overall average. Further, in the iron type golf club having a total length of 40 inches, the average taper ratio Tave was 0.028 at the maximum and 0.021 at the minimum, and the result was 0.024 as the whole average. In an iron type golf club having a total length of 34 inches, the average taper ratio Tav
e was 0.031 at the maximum, 0.021 at the minimum, and the result that the overall average was 0.026 was obtained. And the average taper rate Ta
ve is a linear regression equation for the maximum value having a slope of 0.000.
0, the intercept is 0.028, the linear regression equation for the minimum value is the slope 0.0002, the intercept 0.015, and the linear regression equation for the average value is the slope 0.0001, the intercept 0.022.
Met.

[Overall Consideration] From the results of the above-mentioned test hitting test, for beginners, the outer diameter D of the grip portion 7 is as large as 25 mm or more regardless of the total length L and the taper ratio is small, so-called a golf club having a so-called dull body. As a result, it was found that the swing operation was easily performed about two times. In addition, in the intermediate level, the golf club 2 having a so-called “zipped body” was more likely to perform a swing operation as the overall length L was larger and the outer diameter D of the grip portion 7 was larger and the taper ratio was smaller. In addition, for advanced users, a result was obtained that the golf club 2 of the conventional general specification easily performs a swing operation.

That is, for an intermediate person, the golf club 2 having a larger outer diameter D and a smaller taper is more likely to perform a swing operation as the total length L is longer, and the outer diameter of the grip 7 as the total length L is shorter. It is concluded that the golf club 2 having a smaller dimension D and a larger taper is more likely to perform a swing operation.

At the time of the above-mentioned test hitting test, each tester is asked "the degree of uniformity of the swing feeling of each of the constituent golf clubs 2 in the golf club set 1A".
Asked about. An intermediate person's answer to this question can be summarized as “the golf club 2 has its full length L
By changing the outer diameter dimension D and the taper ratio T of the grip portion 7 corresponding to the above, each golf club 2 can easily perform a swing operation individually, and finally perform a swing operation regardless of the overall length L. Swing feeling is now a unified club set. "It was.

The advanced player is a so-called single player who has a career of 10 years or more.
Irrespective of the overall length L of the golf club, it is preferable that the outer diameter D of the grip portion 7 be constant within a range close to a conventional golf club. The expert is judged to have received such a reply because the influence of the conventional golf club on the golf club is extremely large. Experts reported that they did not feel uncomfortable in the conventional golf club test hit test.

A beginner answered that the golf club 2 having a larger outer diameter D of the grip portion 7 was more likely to perform a swing operation regardless of the total length L. These beginners are unfamiliar with the swing operation of the golf club 2 itself, and judge that such an answer was received because the swing operation was simplified by the large outer diameter D of the grip portion 7. Is done.

In the golf club set 1A, although there are some individual differences, the golf club set 1A has the overall length L and the tester who performs the swing operation most. The outer diameter D and the taper ratio T of the grip part 7 which felt easy to handle
Has a linear correlation with. In each of the golf clubs 2, the correlation formula relating to the minimum value of the outer diameter D of the grip portion 7 that each tester felt most easily swingable with respect to the overall length L is: D1 = 16.0 + 0.2 × L D2 = 13.3 + 0.25 × L D3 = 11.2 + 0.29 × L Dave = 13.6 + 0.25 × L

In the golf club 2, the correlation formula of the maximum taper rate Tmax of the grip portion 7 which the tester felt that the swing operation was most easily performed with respect to the overall length L was as follows: Tmax = 0.081−0.0015 × L Is shown.

Further, regarding the golf club 2 having a total length L longer than 50 inches, the tendency of T = 0 is large regardless of the total length L.

As is clear from the results of the above-described test hitting test, the golf club 2 has an outer diameter dimension D1 at the point P1.
Since the outer diameter D2 of the point P2 and the outer diameter D3 of the point P3 are each at least 25 mm or more, a good swing feeling can be given to a beginner. In other words, the golf club 2 has an average outer diameter Da of at least 50 mm to 200 mm from the grip end 9 toward the tip end for beginners.
ve is configured to be at least 25 mm or more.

Further, as is clear from the results of the above-described test hitting test, the golf club 2 has a good average taper ratio Tave from the point P1 to the point P3 of 10/1000 or less, so that the golf club 2 is good for beginners Gives a feeling of swing. In other words, golf club 2
Is designed for beginners to have a taper ratio Tave of not more than 10/10000 in a range of at least 50 mm to 200 mm from the grip end 9 toward the distal end.

As is clear from the results of the above-described test hitting tests, the golf club set 1 is constructed such that each of the constituent golf clubs 2 has an outer diameter D1 at the point P1, an outer diameter D2 at the point P2, and an outer diameter at the point P3. By setting D3 to be at least 25 mm or more to give a good feeling of swing to beginners,
As a whole, the feeling of swing can be unified.
In other words, the golf club set 1 combines the golf clubs 2 so that the average outer diameter Dave in the range of 50 mm to 200 mm from the grip end 9 toward the tip end for the beginner is 25 mm or more. Be composed.

As described above, the grip member 5 is mounted on the shaft 4 of the golf club 2 to form the grip portion 7. In other words, in the golf club 2, the outer diameter D of the grip 7 is determined by the outer diameter of the shaft 4 and the thickness of the grip member 5. Therefore, in order to achieve the above-described characteristics, the golf club 2 is provided with the grip member 5 having the grip member 5 attached at least in a range of 50 mm to 200 mm from the grip end 9 toward the distal end for beginners. 6m for diameter
The shafts 4 each having an outer diameter dimension not thinner than m may be provided. The shaft 4 has a grip portion 7 having a taper ratio of not more than 10/10000 in a range of 50 mm to 200 mm from the grip end 9 toward the distal end.
Is configured.

In order to achieve the above-described characteristics, the golf club 2 has a thickness of at least 3 mm before being mounted on the shaft 4 within a range of at least 50 mm to 200 mm from the grip end 9 toward the tip. What is necessary is just to provide the grip member 5 which has. In addition, before the grip member 5 is attached to the shaft 4, the outer diameter D of a portion of at least 50 mm to 200 mm from the grip end 9 toward the distal end portion is 25 mm.
What is necessary is just to be comprised above.

The golf club set 1 is designed for intermediate golfers, and the golf clubs 2 are combined so that the outer diameter D gradually increases as the overall length L increases. The golf club 2 is configured to be combined so that the taper ratio T becomes gradually gentler as the total length L becomes longer. As a result, the golf club set 1 gives a good swing feeling to intermediate players.

The golf club set 1 is composed of a set of shafts 4 for intermediate golfers, in which the outer diameter of the grip portion 7 is gradually increased as the overall length L is increased. It is configured in combination. In addition, the golf club set 1 is used for intermediate golfers, provided that each golf club 2 is combined with a set of shafts 4 in which the taper ratio of the grip portion 7 becomes gradually gentler as the total length L becomes longer. Good.

In order to form the golf club set 1 for intermediate golfers, the set of the grip members 5 has an outer diameter of at least 50 mm to 200 mm from the grip end 9 toward the tip end as the total length L increases. Those whose dimensions gradually become larger are combined. In addition, the set of the grip members 5 constitutes the grip portions 7 in which the average taper ratio of at least 50 mm to 200 mm from the grip end 9 toward the distal end gradually becomes gradually smaller as the total length L becomes longer. Be combined.

[0100]

First Embodiment: Embodiment of Golf Club Set for Beginners FIG. 24 shows a golf club set 1 having the above-described characteristics and a golf club set 1 of the first embodiment specifically manufactured as a golf club 2 having the same configuration. FIG. 3 is a diagram showing a list of specifications of a set 20 and golf clubs constituting the set 20. The golf club set 20 has a total length L of 4 as shown in FIG.
It is composed of four wood-type golf clubs of 5.0 inches to 41.5 inches and nine iron-type golf clubs having a total length L of 38.5 inches to 35.5 inches.

In the No. 1 wood having a total length of 45.0 inches, the grip portion 7 has an outer diameter D1 at a point P1 50 mm from the grip end 9 at 26.0 mm and 100 m.
The outer diameter dimension D2 at point P2 of m is 25.5 m
m, the outer diameter D3 at the point P3 of 200 mm is 25.0 mm, and the average outer diameter Dave is 25.0 mm.
5 mm, and the taper ratio T is set to 0.006. In the first wood, the outer diameter corresponding to the point P1 is 20.4 mm, the outer diameter corresponding to the point P2 is 19.7 mm, and the outer diameter corresponding to the point P3 is 19.0 mm. A shaft having a diameter of 19.7 mm and a taper ratio of 0.009 is used.

In the first wood, the specifications before fitting to the shaft described above were such that the outer diameter corresponding to the point P1 was 25.8 mm, the outer diameter corresponding to the point P2 was 25.2 mm, Outer diameter corresponding to point P3 is 2
4.5 mm, average outer diameter 25.2 mm, taper ratio 0.2.
008 is used. This grip member has a thickness of 2.8 m corresponding to the point P1.
m, the thickness corresponding to the point P2 is 2.9 mm, the thickness corresponding to the point P3 is 3.0 mm, and the average thickness is 2.9 mm.

As is apparent from the figure, the golf club set 20 has a 3rd wood having a total length of 42.5 inches, a 4th wood having a total length of 42.0 inches, and a 5th wood having a total length of 41.5 inches. , And the grip portions are each configured similarly to the above-mentioned No. 1 wood. The golf club set 20 uses shafts and grip materials having the same specifications as those of No. 1 wood for the shafts and grip materials of these wood clubs.

As is apparent from the figure, the golf club set 20 has a grip portion of the above-described first wrist having a total length of 38.5 inches and an approach wedge of 35.5 inches or less and a total length of 35.5 inches. It is configured the same as wood. The golf club set 20 uses a shaft and a grip material having the same specifications as the first wood for the shaft and the grip material for these iron clubs.

The golf club set 20 constructed as described above was tested by a tester belonging to the above-mentioned group A, and the golf club set 20 was improved in swing feeling by simplifying the swing operation of each golf club. Respondents said that this was achieved. In addition, the golf club set 20 was extremely popular because it was answered that the swing feeling was unified throughout the set.

[0106]

Second Embodiment: Embodiment of Golf Club Set for Intermediate Player FIG. 25 shows a golf club set 1 having the above-described characteristics and a golf club set 2 of the second embodiment specifically manufactured as a golf club 2. FIG. 3 is a diagram showing a list of specifications of a club set 30 and each golf club constituting the same. The golf club set 30 has a total length L of 4 as shown in FIG.
It is composed of four wood type golf clubs of 8.0 inches to 42.5 inches and nine iron type golf clubs having a total length L of 41.0 inches to 35.0 inches. In the golf club set 30, the grip portion 7 of the golf club set 20 of the first embodiment is configured to have the same specifications for each golf club. However, the outer diameter D and the taper ratio are appropriately adjusted according to the overall length L. It is characterized in that T and T are changed.

In the No. 1 wood having a total length of 48.0 inches, the grip 7 has an outer diameter D1 at a point P1 of 50 mm from the grip end 9 of 26.0 mm and 100 m.
The outer diameter dimension D2 at point P2 of m is 25.5 m
m, the outer diameter D3 at the point P3 of 200 mm is 25.0 mm, and the average outer diameter Dave is 25.0 mm.
5 mm, and the taper ratio T is set to 0.006. The first wood is configured such that the specifications of the grip portion 7 are the same as the specifications of the first wood grip portion 7 of the golf club set 20 described above. The No. 1 wood has the same outer diameter specification before the grip member is fitted to the shaft, but has a different thickness specification and a different shaft specification.

That is, the first wood has the point P1
, The outer diameter corresponding to point P2 is 17.1 mm, the outer diameter corresponding to point P3 is 16.6 mm, the average outer diameter is 17.1 mm,
A shaft having a taper ratio of 0.0064 is used. The grip member has an outer diameter dimension corresponding to the point P1 of 25.8 m before being fitted to the shaft.
m, the outer diameter corresponding to the point P2 is 25.2 mm,
The outer diameter dimension corresponding to the point P3 is 24.5 mm, the average outer diameter is 25.2 mm, and the taper ratio is 0.008.
The thickness of the grip member corresponding to each of the points P1 to P3 is 4.2 mm and is the same.

On the other hand, for example, in a fifth wood having a total length of 42.5 inches, the grip portion 7 is
Outer diameter D1 at point P1 50 mm from
The outer diameter D2 at the point P2 of 5.2 mm and 100 mm is 24.0 mm, the outer diameter D3 at the point P3 of 200 mm is 22.5 mm, the average outer diameter Dave is 23.9 mm, and the taper ratio T is 0. .0
18. In the fifth wood, the outer diameter corresponding to the point P1 is 16.92 mm, the outer diameter corresponding to the point P2 is 16.21 mm, the outer diameter corresponding to the point P3 is 15.50 mm, and the average outer diameter is A shaft having a specification of 16.21 mm and a taper ratio of 0.0091 is used.

In the No. 5 wood, the specifications before fitting to the shaft described above were such that the outer diameter corresponding to the point P1 was 25.0 mm, the outer diameter corresponding to the point P2 was 23.7 mm, The outer diameter dimension corresponding to point P3 is 2
2.0 mm, average outer diameter 23.5 mm, taper ratio 0.
020 is used. The grip member has a thickness of 4.12 mm corresponding to the point P1,
The thickness corresponding to the point P2 is 3.90 mm, the thickness corresponding to the point P3 is 3.48 mm, and the average thickness is 3.83 mm.

A 3 iron having a total length of 41.0 inches is
The grip portion 7 has an outer diameter D1 at a point P1 50 mm from the grip end 9 at 24.9 mm, 100 mm.
The outer diameter D2 at the point P2 of 2 mm is 23.6 m.
m, the outer diameter D3 at a point P3 of 200 mm is 21.8 mm, and the average outer diameter Dave is 23.2.
4 mm, and the taper ratio T is set to 0.021. The third iron has an outer diameter dimension corresponding to the point P1 of 16.74 mm, an outer diameter dimension corresponding to the point P2 of 15.97 mm, an outer diameter dimension corresponding to the point P3 of 15.20 mm, and an average outer diameter. 15.97 mm,
A shaft having a taper ratio of 0.0099 is used.

The specifications before the fitting to the shaft described above are such that the outer diameter corresponding to the point P1 is 24.7 mm, the outer diameter corresponding to the point P2 is 23.3 mm, A grip member having an outer diameter dimension corresponding to the point P3 of 21.3 mm, an average outer diameter of 23.1 mm, and a taper ratio of 0.023 is used. This grip member has a thickness of 4.0 corresponding to the point P1.
9mm, wall thickness corresponding to point P2 is 3.82m
m, the thickness dimension corresponding to the point P3 is 3.28 mm,
The average thickness is 3.73 mm.

Further, in the approach wedge having a total length of 35.0 inches, the grip portion 7 has the outer diameter D1 at the point P1 of 50 mm from the grip end 9 set to 24.
Outer diameter D at point P2 of 0 mm and 100 mm
2 is 22.0 mm, the outer diameter D3 at a point P3 of 200 mm is 19.0 mm, and the average outer diameter D is
ave is 21.7 mm and the taper ratio T is 0.033. This approach wedge has an outer diameter of 16.0 mm corresponding to the point P1 and a point P1.
The outer diameter corresponding to point 2 is 15.0 mm, the outer diameter corresponding to point P3 is 14.0 mm, and the average outer diameter is 15.0.
A shaft having a specification of mm and a taper ratio of 0.0129 is used.

The approach wedge has the following specifications before fitting to the shaft: the outer diameter corresponding to the point P1 is 23.8 mm; the outer diameter corresponding to the point P2 is 21.7 mm; A grip member having an outer diameter dimension corresponding to P3 of 18.5 mm, an average outer diameter of 21.3 mm, and a taper of 0.035 is used. This grip member has a thickness dimension corresponding to the point P1 of 4.0 mm and a thickness dimension corresponding to the point P2 of 3.5.
mm, the thickness corresponding to the point P3 is 2.5 mm,
The average thickness is set to 3.33 mm.

The golf club set 30 constructed as described above was tested by a tester in the above-described group B. As a result, the swing operation of each of the golf clubs was further simplified, thereby improving the feeling of swing. Respondents said that this was achieved. In addition, the golf club set 30 was very popular because it was answered that the swing feeling was unified throughout the set.

[0116]

As described above in detail, according to the golf club of the present invention, the mode in which the horizontal swinging operation is emphasized and the vertical arm raising / lowering operation in accordance with the total length are performed. A smooth swinging operation is performed by adjusting the emphasis form, and a good swing feeling is given to the player.

Further, according to the golf club set according to the present invention, each golf club constituting the set has a configuration in which the swinging operation in the left and right directions is emphasized according to the total length thereof, and the raising and lowering of the arms in the vertical direction. The golf club set is designed so that a smooth swing operation is performed by being adjusted and configured with the form that emphasizes the movement, and the unified feeling of the swing feeling as a whole without discomfort Be composed.

Further, according to the golf club shaft of the present invention, there is provided a golf club shaft having a configuration emphasizing the arm swinging operation in the left-right direction and a configuration emphasizing the arm raising / lowering operation in the vertical direction according to the total length. It is possible to manufacture a golf club that achieves a good swing feeling by performing a smooth swing operation with adjustment.

Furthermore, according to the set of golf club shafts according to the present invention, for each golf club having a different overall length, the arm swing operation in the left-right direction can be performed smoothly for a long golf club. For a short golf club, the raising and lowering of the arm in the vertical direction can be performed smoothly, so that it is possible to manufacture a golf club set with a sense of unification and a sense of uniform swing feeling as a whole.

Further, according to the grip member for a golf club according to the present invention, a form emphasizing the arm swing operation in the left-right direction according to the total length and a form emphasizing the arm raising / lowering operation in the up-down direction. Thus, a smooth swinging operation is performed, and a golf club having a good swing feeling can be manufactured.

Further, according to the set of the grip members for golf clubs according to the present invention, for each golf club having a different overall length, the arm swing operation in the left-right direction can be performed smoothly for a long golf club. With short golf clubs, arm lifting and lowering can be performed smoothly in the vertical direction, so that a golf club set can be produced that has a unified feeling of swing as a whole without discomfort. .

[Brief description of the drawings]

FIG. 1 is a schematic view showing a configuration of a golf club set according to the present invention.

FIG. 2 is a front view of a golf club (wood club) constituting the golf club set.

3A and 3B are diagrams illustrating a configuration of a grip portion of a golf club provided with a grip member without a backline. FIG. 3A is a front view of a main part, FIG. FIG. (C) is a longitudinal sectional view showing a state where the grip member is mounted.

4A and 4B are diagrams illustrating a configuration of a grip portion of a golf club provided with a grip member with a back line, wherein FIG. 4A is a longitudinal section of the grip member, and FIG. FIG.

FIG. 5 is an explanatory view of a state in which the golf club is gripped (interlocking grip).

FIG. 6 is an explanatory diagram of a state of a left hand in an interlocking grip.

FIG. 7 is an explanatory diagram of a state of the right hand in the grip.

FIG. 8 is an explanatory diagram of a grip position in a gripped state (interlocking grip).

FIG. 9 is a diagram showing a list of the results of measuring each grip position of each tester who gripped the golf club.

FIG. 10 is a view showing a list of specifications of a golf club set used in a test hit test.

FIG. 11 is a diagram showing an example of an evaluation table used in a test hit test of a golf club.

FIG. 12 is a diagram illustrating a golf club in which the outer diameter of the grip portion is varied according to the overall length. In a test hit test, each tester feels that the swing operation was most easily performed with respect to the overall length. 4) is a diagram showing a test result of the outer diameter dimension D1 (average value) of the grip portion and a list of correlations between the outer diameter size D1 of the grip portion and the overall length L of the golf club obtained by regression analysis of the test result. .

FIG. 13 is a tabulated graph of the outer diameter dimension D1 and the overall length L of the grip portion of the golf club based on the result of the test hitting test.

FIG. 14 is a diagram showing a state where the grip end is 1 in the same trial test.
A test result of the outer diameter D2 (average value) of the grip portion at the 00 mm position (P2) and a list of correlations between the outer diameter D2 of the grip portion and the total length L of the golf club obtained by regression analysis of the test results are shown. FIG.

FIG. 15 is a diagram showing a state where the grip end is 2 in the same hit test.
A list of the experimental results of the outer diameter D3 (average value) of the grip portion at the 00 mm position (P3) and a correlation list between the outer diameter D3 of the grip portion and the overall length L of the golf club obtained by regression analysis of the experimental results. FIG.

FIG. 16 shows an experimental result of the average outer diameter Dave (average value) of the grip portion in the same test hitting test, and an average outer diameter Dave of the grip portion and a total length L of the golf club obtained by regression analysis of the experimental result. It is a figure showing a list of correlations with.

FIG. 17 is a tabulated graph of the total length L of the golf club and the average outer diameter Dave of the grip portion based on the results of the test hitting test, and shows the results of a beginner group.

FIG. 18 is a tabulated graph of the total length L of the golf club and the average outer diameter Dave of the grip portion based on the results of the test hitting test, and shows the results of a middle-class person.

FIG. 19 is a tabulated graph of the total length L of the golf club and the average outer diameter Dave of the grip portion based on the result of the test hitting test, and shows the results of a senior group.

FIG. 20 shows an experimental result of an average taper ratio Tave (average value) of a grip portion in the trial hitting test, and an average taper ratio Tave of the grip portion and a total length L of the golf club obtained by regression analysis of the experimental result. It is a figure showing a correlation list.

FIG. 21 is a tabulated graph of the total length L of the golf club and the average taper ratio Tave of the grip portion based on the result of the test hitting test, and shows the result of a beginner group.

FIG. 22 is a tabulated graph of the total length L of the golf club and the average taper ratio Tave of the grip portion based on the results of the test hitting test, and shows the result of an intermediate player group.

FIG. 23 is a tabulated graph showing the total length L of the golf club and the average taper ratio Tave of the grip portion based on the results of the test hitting test, and shows the results of an advanced player group.

FIG. 24 is a view showing a set specification list shown as a first embodiment of the golf club set according to the present invention.

FIG. 25 is a view showing a set specification list shown as a second embodiment of the golf club set according to the present invention.

FIG. 26 is an analysis diagram of a swing operation of the golf club, showing a first element operation.

FIG. 27 is an analysis diagram of a swing operation of the golf club, showing a second element operation.

FIG. 28 is a set configuration diagram of a conventional golf club.

FIG. 29 is a set configuration diagram of a conventional long golf club.

FIG. 30 is a dimensional view of a grip portion of a conventional golf club.

[Explanation of symbols]

Reference Signs List 1 golf club set, 2 golf club, 3 club head, 4 shaft, 5 grip member, 5b shaft hole, 6 head portion, 7 grip portion, 9 grip end, 10 left hand sense region, 11 right hand sense region, 1
2 Evaluation table

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] March 23, 1999 (1999.3.2
3)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 6

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0003

[Correction method] Change

[Correction contents]

[0003] That is, a golf club set includes a wood club from wood No. 1 to wood No. 11, for example.
It is composed of iron clubs from irons to irons, pitching wedges, application wedges, sand wedges, and the like. The player selects up to a total of 13 golf clubs from these clubs and plays with 14 putters. As described above, the golf club set is set by combining a large number of golf clubs each manufactured by completely different designs so as to obtain a predetermined trajectory height and a flight distance.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0052

[Correction method] Change

[Correction contents]

By the way, in the golf club 2, the grip portion 7 is gripped by the player in various grip forms. 5 to 7 are explanatory diagrams of an interlock grip using a general right-handed player. As shown in FIG. 5, the interlock grip is a grip form in which the little finger of the right hand and the forefinger of the left hand are joined together to form a connecting portion between the left hand and the right hand. Generally, the golf club 2 is gripped by the palm grip with the left hand of the player. That is, as shown in FIG. 6, the palm grip is a form in which the left hand is applied to the grip portion 7 from the lower part of the little finger of the palm to the index finger portion, and the palm is gripped so as to wrap the grip portion 7. In general, the golf club 2 has a grip 7 gripped by a finger grip with the right hand of the player. That is, as shown in FIG.
Is applied to the second joints of the three fingers of the ring finger, the middle finger, and the index finger, and the grip portion 7 is gripped by the fingers.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0057

[Correction method] Change

[Correction contents]

As shown in the glove size column, each part when the examiners M-1 to M-20 grip the grip part 7 has individual differences in hand size as shown in the column of glove size, but the first interval Y1 is substantially the same. 50 mm, Y2 is approximately 100 mm, Y3 is approximately 200
mm. Therefore, the evaluation of the golf club 2 is
This was performed by calculating the displacement of the outer diameter dimension between the point P1 and the point P3, that is, the taper ratio T, and evaluating those values. ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] July 30, 1999 (July 7, 1999)
0)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

Patent application title: Golf club set, shaft set for golf club set, and grip member set for golf club set

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf club set in which a simplified swing operation can be performed and a good swing feeling can be obtained, so that the swing feeling in the set can be harmonized. The present invention relates to a golf club set shaft set and a golf club set grip member set that constitute a golf club set.

[0002]

2. Description of the Related Art Golf is a sport having extremely high mentality, and it is extremely important to select a golf club that matches the feeling in making a score. In golf, many golf clubs are used. Each golf club is set based on the idea of changing the trajectory height and flight distance obtained when the player hits the ball with each club, and specifically, the length of each club, The functional target is achieved by changing the angle of the hitting surface of the head, which is generally called a loft angle.

[0003] That is, a golf club set includes a wood club from wood No. 1 to wood No. 11, for example.
It is composed of iron clubs from iron to iron, pitching wedge, approach wedge, sand wedge, and the like. The player selects up to a total of 13 golf clubs from these clubs and plays with 14 putters. As described above, the golf club set is set by combining a large number of golf clubs each manufactured by completely different designs so as to obtain a predetermined trajectory height and a flight distance.

In order to use a large number of golf clubs having completely different designs as described above, a golf player sets a golf club as an important option, "can all of the constituent golf clubs swing with the same feeling?" Is selected. Therefore, the golf club designer must consider how to design each of the constituent golf clubs in order to unify the swing feeling within a set of golf clubs on the premise of improving flight distance and stability. Proposition.

Heretofore, golf club designers have determined the rotational moment when a fulcrum is provided in a portion near the grip portion of each golf club or the amount of deflection or natural frequency of the shaft measured by fixing the grip portion. As a design element, they were trying to unify the feeling of weight and shaft bending when the player swings in the set. Specifically, the designer of the golf club “unified the feeling of swing” by appropriately adjusting the characteristics of the shafts, weight distribution, physical characteristic values and mechanical characteristic values of the heads of the constituent golf clubs by counting. Golf Club Set ".

FIG. 28 is a set configuration diagram showing specifications of the total length, the head loft angle, and the set flight distance value in a conventional standard golf club set. For example, 1
The number wood (driver) is designed to have a total length of 43 inches, a head loft angle of 12 °, and a set flight distance of 230 yards. The third wood (spoon) is designed to have a total length of 42 inches, a head loft angle of 16 °, and a set flight distance value of 200 yards. The 3 iron has a length of 38.5 inches and a head loft angle of 21
°, set flight distance value is 170 yards. The other specifications of the golf club are as shown in FIG.

[0007] On the other hand, in each golf club, continuous improvement has been attempted to make the ball more accurately reach a distant target. Recent golf clubs
Through research and development of new materials, for example, the weight of shafts and heads has been reduced, and this weight reduction has made it possible to use them even when the overall length is long. Golf clubs are becoming more and more prone to increasing the flight distance of the ball as the golf club becomes longer.

FIG. 29 is a set configuration diagram showing specifications of a total length, a head loft angle, and a set flight distance value in a golf club set having such a long golf club. In the golf club set, for example, No. 1 wood has a total length of 45 inches and a head loft angle of 10.5.
°, the flight distance is set to 250 yards. Three
The number wood is designed to have a total length of 42.5 inches, a head loft angle of 15 °, and a set flight distance value of 215 yards. The No. 3 iron is designed to have a total length of 39 inches, a head loft angle of 20 °, and a set flight distance of 180 yards. The other specifications of the golf club are as shown in FIG.

As described above, in the long golf club set, the difference in the overall length between the long golf club and the short golf club is larger than the standard golf club set. Therefore, in such a long golf club set, the above-mentioned golf player's option of "can all the golf clubs swing with the same feeling" has become increasingly important.

By the way, a conventional golf club set is
As shown in FIG. 30, there are provided various golf club sets in which the outer diameter of the grip portion is divided into thick, slightly thick, standard, and thin (ladies'). However, in these conventional golf club sets, each of the golf clubs constituting the set has a uniform grip portion having a uniform thickness and shape. In the drawing, d1, d2, and d3 are outer diameters of the grip portion at positions of 50 mm, 100 mm, and 200 mm from the grip end, respectively. Taper is an average taper rate of the grip portion.

For example, Japanese Patent Laid-Open Publication No. Hei 5-277221, entitled "Set of Golf Clubs Having Changing Grip Diameters" discloses a golf club set in which each club in the set has a different grip size and shape. ing. That is, in order to obtain the characteristics of the above-mentioned predetermined trajectory height and flight distance required for each constituent club, the prior application golf club set has a grip portion from a smaller golf club to a larger golf club. Are configured so that the outer diameter dimension of the increases linearly or non-linearly.

[0012]

SUMMARY OF THE INVENTION The present inventors have proposed various golf club sets (set B) which complain about a conventional general golf club set (set A) or a "golf club set having a unified swing feeling". )
A test was conducted in which many testers actually tried these. This result indicates that the golf club sets of set A and set B have different feelings of the weight of the head and the bending of the shaft when gripping or swinging.
Most disagree in terms of points, and set B
Said that the golf club set had a "unified swing feeling within the set".

[0013] However, many of the testers have set B
Regarding the golf club set, there was a slight difference from the set A in the point of "unification of the swing feeling in the set", but the opinion was "not felt to be unified". Many testers specifically cite the reason that "Some golfers feel uncomfortable in the way they move when swinging, depending on the length of the golf club, and they cannot feel consistency within the set." Was.

On the other hand, the above-mentioned golf club set of the prior application is constructed by combining golf clubs having different grip diameters in terms of structure. However, this prior golf club set is not configured from the viewpoint that "the entire set is constituted by a golf club with a unified swing feeling within the set".

As a result of intensive examination of the results of the above-mentioned test, the inventors of the present invention have noted, as a factor affecting the feeling of swing, "a change in the swing form which necessarily occurs with a difference in club length. There is a new point of view that is not in the conventional golf club design. That is, in order to unify the feeling of swing of each golf club included in the set, it is essential that the golf club set can smoothly perform the swing operation for golf clubs of all lengths. I came to the conclusion that there was.

The swing motion of a golf club is roughly divided into upper and lower body motions and arm motions. The upper and lower body movements are movements using large muscles of the body. On the other hand, the motion of the arm is a motion using relatively small muscles of the body. It is described that, in terms of exercise physiology, the movement of each part of the body is easier to be conscious of using a small muscle than to use a large muscle, and that the movement is more likely to be affected by an external force. In the swing motion of a golf club, the motion of the arm using relatively small muscles has a greater effect on the swing feeling. Therefore, in order to improve the feeling of swing, the golf club must be able to smoothly move the arm during the swing operation.

As a result of detailed analysis of the swing motion of the golf club, the present inventors have found that the motion of the player's arm is roughly classified into two types of motion, as shown in FIGS. 26 and 27. Was analyzed. That is, the first element operation in the swing operation of the golf club is, as shown in FIG. 26, an operation in which the player swings his arm up and down with his palms in front of his / her body. In the first element operation, an operation of bending the wrist in the thumb direction or the little finger direction (generally called a cock) as shown in FIG. Operation) is also performed.

The operation of the second element is as shown in FIG.
This is a motion in which the player swings his arm in the left and right direction with both palms facing in front of the body. In the second element operation, an operation of twisting the arm to the left or right (operations generally called pronation and supination of the arm) is also performed. For many players' swing motions, it appears that there are various types of arm motions, but the actual situation is that the ratio of the amount of motion between the first element motion and the second element motion is different. It's just

The present inventors have analyzed in detail how the movements of the arms change when a large number of testers carry a swing motion with golf clubs having different total lengths. . As a result, the swing motion of most testers is not conscious, and the first element motion amount (the motion of raising and lowering the arm up and down) is increased as the overall length of the golf club is shortened. It has been found that the longer the total length of the golf club is, the larger the second element movement amount (the operation of swinging the arm in the left-right direction) is.
The swing operation of the golf club is a horizontal swing operation (flat swing) as the overall length is longer, and a vertical swing operation (upright wing) as the overall length is shorter. In addition, since the beginner was not proficient in the swing motion of the golf club, it was found that the swing motion was large regardless of the overall length of the golf club.

The inventors of the present invention have stated that “the change in the length of the golf club may cause a change in the length of the arm when the swing operation is performed.
Based on the analysis result that the ratio of the two motion components (the first element operation and the second element operation) is different, the golf club and the golf club set can perform a smooth swing operation regardless of the length. Has concluded that long golf clubs should have characteristics that allow easy swinging in the left-right direction, and short golf clubs should have characteristics that allow easy swinging in the vertical direction.

That is, it is theorized from the viewpoint of ergonomics that the shape of the holding portion greatly affects the operability of a tool that is assumed to be used by being held by hand.
However, in golf clubs, even though various studies have been made on the shape of the grip itself, which is the gripping portion, the optimal grip shape in accordance with the change in arm movement that necessarily occurs with the change in length. It has not been considered yet.

For this reason, the present inventors conducted a number of testers with different skills in order to find out what shape the grip shape that would most easily perform a swing operation with respect to the length of each golf club. Various experiments were performed as subjects. The present inventors have obtained the following four findings as a result of this experiment.

(1) As the overall length of the golf club increases, the smoother the swing operation, the thicker the grip and the smaller the taper ratio. In the golf club, the smoother the swing operation is, the shorter the overall length is, the thinner the grip is and the larger the taper ratio is.

(2) By changing the grip shape according to the overall length of the golf club, a smooth swinging operation can be easily performed, and as a result, a golf club set having a uniform swing feeling regardless of the overall length is constituted. be able to.

(3) In the golf club, there is a linear correlation between the overall length and the thickness or the taper ratio of the grip at which the player feels that the player is most likely to swing smoothly.

(4) For beginners who are not proficient in the swing operation of the golf club, a smooth swing operation can be performed with a thicker grip and a smaller taper ratio regardless of the overall length of the golf club.

The inventors of the present invention have stated that, in the conventional golf club set, as described above, the reason that "the golf club sets do not always have a unified swing feeling in the set" is as follows. Each golf club set is due to the fact that the grip of each of the constituent golf clubs in the set is not optimized for the swing configuration. " From this conclusion, the present inventors have obtained an optimal grip shape according to the length of the golf club such that “the direction in which the arm movement is performed smoothly changes depending on the difference in the length of the golf club”. Thus, the swing operation of each of the constituent golf clubs is simplified, whereby the swing feeling is unified within the golf club set.

Therefore, the present invention enables each golf club constituting a set to perform a smooth swinging motion by changing the direction in which the arm motion is smoothly performed according to the difference in length. Accordingly, it is an object of the present invention to provide a golf club set in which the swing feeling in the set is unified.

Further, the present invention enables the golf clubs constituting the set to perform a smooth swing operation by being changed in a direction in which the movement of the arms is smoothly performed according to the difference in their lengths. Accordingly, it is an object of the present invention to provide a golf club set shaft set constituting a golf club set in which a uniform swing feeling is achieved within the set.

Further, the present invention enables each golf club constituting a set to perform a smooth swing operation by being changed in a direction in which the movement of the arm is smoothly performed according to the difference in the length of each golf club. Therefore, it is an object of the present invention to provide a golf club set grip member set which constitutes a golf club set in which the swing feeling in the set is unified.

[0031]

A golf club set according to the present invention, which achieves the above-mentioned objects, has a different length and a grip member attached to a base end portion, and a grip portion is formed at a distal end portion. A golf club set excluding a putter composed of at least two or more golf clubs to which different heads are attached, wherein each golf club has its grip portion axially 50 mm to 200 mm from its grip end. The part of the range is gradually reduced in diameter toward the tip, and the average outer diameter is gradually increased according to the golf club having a longer overall length, and the average taper ratio is gradually reduced gradually. Is done.

According to the golf club set of the present invention configured as described above, for each golf club having a different length, the arm swinging operation in the left-right direction can be performed smoothly for a long golf club. At the same time, for a short golf club, the cock operation in the vertical direction can be performed smoothly. Therefore, the golf club set can perform a smooth swing operation by changing the direction in which each golf club constituting the set smoothly performs the operation of each arm according to the difference in length, Swing feeling as a whole set can be unified.

The golf club set shaft set according to the present invention, which achieves the above-mentioned object, comprises at least two or more shaft sets having different total lengths, each of which has a grip member attached to a base end portion and faces a tip end portion. This is a golf club set shaft set, except for putters, which has a grip part that gradually becomes smaller in diameter and a different head is attached to the tip, and as the length of each shaft increases, the grip part becomes the grip. A golf club set is formed by combining the parts such that the average outer diameter in the range of 50 mm to 200 mm in the axial direction from the end is gradually increased and the average taper is gradually reduced.

According to the golf club set shaft set of the present invention configured as described above, the swinging motion of the golf clubs of different lengths in the left and right directions is performed for the long golf clubs. The golf club can be smoothly operated, and the cock operation in the vertical direction can be smoothly performed for a short golf club. Therefore, the golf club set shaft set can perform a smooth swing operation by changing the direction in which each golf club smoothly performs the operation of each arm according to the difference in the length, and can be set. It is possible to manufacture a golf club set in which the swing feeling as a whole is unified.

Further, the grip member set for a golf club set according to the present invention, which achieves the above-described object, is provided with a base end portion of at least two or more shafts having different lengths each having different heads attached to the front end portion. A grip member set for a golf club set, except for a putter, that constitutes a grip portion that is gradually mounted toward the distal end portion and is gradually reduced in diameter toward the distal end portion. Each grip member has at least a grip end as the overall length of the shaft increases. A part in the range of 50 mm to 200 mm in the axial direction from the first to the third is configured such that the average outer diameter is gradually increased and the average taper is gradually set to form a golf club set.

According to the grip member set for a golf club set according to the present invention configured as described above, for each golf club having a different overall length, the golf club set is constituted.
For a long golf club, the arm swing operation in the left-right direction can be performed smoothly, and for a short golf club, the cock operation in the vertical direction can be performed smoothly. Accordingly, the golf club set grip member can perform a smooth swing operation by changing the direction in which each golf club smoothly performs the operation of each arm according to the difference in length,
It is possible to manufacture a golf club set in which the swing feeling as a whole is unified.

[0037]

Embodiments of the present invention will be described below in detail with reference to the drawings. The golf club set 1 of the embodiment has a large number of iron clubs 2a in FIG.
2 to 2n. Golf club set 1
As shown in the figure, as each golf club 2a to 2n has a smaller count, a longer golf club 2a has a grip portion 7a having a larger diameter and a smaller taper ratio, and a shorter golf club having a larger count. 2n, the grip portion 7n is configured to have a gradually smaller diameter and a larger taper ratio. Of course, although not shown, the golf club set 1 is similarly configured for a wood club set. Note that the golf club set 1 does not include a putter.

Each golf club 2 has the same basic configuration as a normal golf club, and includes a club head 3, a shaft 4, and a grip member 5 as main components as shown in FIG. The golf club 2 has a head portion 6 in which a hosel 3a of a club head 3 is attached to a distal end portion of a shaft 4 via a socket 3b. The golf club 2 constitutes a grip portion 7 by attaching the grip member 5 to the rear end of the shaft 4. The club head 3 is made of a metal material such as persimmon or stainless steel or F
It is formed of a resin material such as RP, and the iron club is formed of a metal material or a resin material such as FRP.

The shaft 4 is also made of a pipe material made of a metal material or a resin material such as FRP, and has an outer diameter gradually increasing from the front end to the rear end. The shaft 4 defines the overall length L of each golf club 2 as shown in FIG. Specifically, the overall length L of the golf club 2 is the length from the heel surface of the club head 3 to the grip end. The golf club 2 has a sole whose round is appropriately formed of a curved surface or a plurality of curved surfaces, and an intersection between the sole surface and the heel surface is used as a length reference point.

The grip member 5 is formed of a material having various characteristics required for the grip portion 7, such as water repellency, abrasion resistance, flexibility, air permeability, and shock absorption. The grip member 5 is made of, for example, EPDM or S
It is molded from a rubber material obtained by mixing a synthetic rubber such as BR or a synthetic resin material such as urethane resin. The grip member 5 has a generally cylindrical shape in which a fitting hole into which the shaft 4 is fitted is formed on one end side and a small hole for air vent is formed on the other end side by, for example, compression molding or injection molding. And molded. The grip member 5 includes a shaft 4 on which an adhesive tape 8 is wound in advance.
The grip part 7 is configured by being mounted on the grip part 7.

As shown in FIG. 3B, the grip member 5 is formed to have a substantially circular circular shaft fitting hole 5a and a cylindrical cross section. As shown in FIG. 2A, the grip member 5 has a stopper portion 5b in which a portion of the grip end 9 is slightly swelled to a large diameter. The grip member 5 forms a grip portion 7 having a substantially circular cross section as shown in FIG. 4C by fitting the shaft 4 into the shaft fitting hole 5a. When the grip member 5 is mounted on the shaft 4, the grip member 7 forms a tapered grip portion 7 whose outer diameter gradually decreases from the stopper portion 5 b toward the distal end portion.

When the grip member 5 is mounted on the shaft 4 having the same diameter as the grip portion 7, for example, the thickness of the grip member 5 is gradually reduced from the grip end 9 toward the distal end. Thereby, the above-described taper is configured. Further, when the grip member 5 is mounted on the shaft 4 having a configuration in which the grip portion 7 is gradually reduced in diameter from the grip end 9 side toward the distal end side, for example, the thickness of the grip member 5 is increased. Is made substantially constant so that the above-described taper is formed.

The inner diameter Gd of the shaft hole 5 a of the grip member 5 is slightly smaller than the outer diameter Sd of the shaft 4. The grip member 5 has an average thickness t before the shaft 4 is fitted into the shaft hole 5a. The grip member 5 has a shaft hole 5 as shown in FIG.
a, the difference between the inner diameter of the shaft 4 and the outer diameter of the shaft 4 and the adhesive tape 8
The shaft fitting hole 5a has its inner diameter Gd expanded to Sd + Δx depending on the winding amount of the shaft.
The grip portion 7 having the taper rate T is configured. Grip member 5
As described in detail later, those having different outer diameters D and different taper ratios T according to the respective numbers are used.

The grip member 5 shown in FIG. 4 has a cylindrical cross-sectional shape after a back line 5c formed of an axial rib-like convex portion is formed in a part of the shaft fitting hole 5a. Be formed. Also in the grip member 5, a portion of the grip end 9 is bulged to a slightly larger diameter to form a stopper portion 5b. The grip member 5 is formed so as to be tapered so that the outer diameter thereof gradually decreases from the stopper portion 5b toward the distal end portion. When the shaft 4 is fitted into the shaft fitting hole 5a, the grip member 5 has a back surface portion corresponding to the back line 5c, as shown in FIG. Constitutes the grip portion 7 having a substantially elliptical shape.

The grip member 5 is formed, for example, in a tape shape from the above-described material, and forms the grip portion 7 by spirally winding the outer peripheral portion of the shaft 4 around which the adhesive tape 8 is wound. It may be. In addition, the grip member 5 may be a member that forms the grip portion 7 by outsert molding the above-described material into, for example, the shaft 4 that has been subjected to a ground treatment.

By the way, in the golf club 2, the grip portion 7 is gripped by the player in various grip forms. 5 to 7 are explanatory diagrams of an interlock grip using a general right-handed player. As shown in FIG. 5, the interlock grip is a grip form in which the little finger of the right hand and the forefinger of the left hand are joined together to form a connecting portion between the left hand and the right hand. Generally, the golf club 2 is gripped by the palm grip with the left hand of the player. That is, as shown in FIG. 6, the palm grip is a form in which the left hand is applied to the grip portion 7 from the lower part of the little finger of the palm to the index finger portion, and the palm is gripped so as to wrap the grip portion 7. In general, the golf club 2 has a grip 7 gripped by a finger grip with the right hand of the player. That is, as shown in FIG.
Is applied to the second joints of the three fingers of the ring finger, the middle finger, and the index finger, and the grip portion 7 is gripped by the fingers.

As for the form of the grip, the grip part 7 is gripped by both the left and right hands by the palm grip and the finger grip described above. Overlapping grips that form a connecting portion are also commonly used. As another form of the grip, a baseball grip that does not particularly connect the left hand and the right hand is also generally used. In the left-handed player, the grip 7 is gripped with the left and right hands reversed with respect to the right-handed player described above.

In the golf club 2, when the player holds the grip portion 7 in the above-described grip form, the player feels the shape and thickness of the grip portion 7 at different portions of the left hand and the right hand. That is, the golf club 2 makes the left hand feel the shape and the sense of thickness in the region (left hand sense region) 10 from the middle finger to the little finger, which is indicated by the black region in FIG. In addition, the golf club 2
The sense of the shape and the sense of thickness by the right hand is felt by the region (right hand sense region) 11 corresponding to the middle finger and the ring finger shown by the black region in FIG. 7 and the index finger.

FIG. 8 is an explanatory view of the dimensions of the grip portion 7 employed when designing the golf club 2 based on the above considerations. Each part of the grip part 7 is a part P1 corresponding to the middle finger of the left hand from the point P0 of the grip end 9.
The interval up to this point is defined as a first interval Y1, and the outer diameter at this portion P1 is defined as a first outer diameter D1. Each part of the grip part 7 is located at a point P0 of the grip end 9.
The distance from the position P2 to the site P2 corresponding to the ring finger of the right hand, which is the connecting portion of the left and right hands, is defined as a second interval Y2.
Is defined as a second outer diameter D2. Furthermore, in each part of the grip part 7, the distance from the point P0 of the grip end 9 to the part P3 corresponding to the index finger of the right hand is defined as a third distance Y3, and the outer diameter of the part P3 is defined as D3.

FIG. 9 is a diagram showing a list of 20 testers M-1 to M-20 who have performed a test hit test described later. In the test hitting test, a beginner group (group A) of 6 persons (M-1 to M-6), an intermediate group (group B) of 12 persons (M-7 to M-18) and 2 persons (M -19, M-20) advanced group (group C) participated. Each tester M-1
As for M-20, the dimensions of each of the above-described portions when the grip portion 7 was gripped were measured, and the results were as shown in FIG.

As shown in the column of glove size, each part when the tester M-1 to M-20 holds the grip part 7 has individual differences in hand size as shown in the column of glove size, but the first interval Y1 is almost the same. 50 mm, Y2 is approximately 100 mm, Y3 is approximately 200
mm. Therefore, the evaluation of the golf club 2 is
This was performed by calculating the displacement of the outer diameter dimension between the point P1 and the point P3, that is, the taper ratio T, and evaluating those values.

As described above, the grip member 5 has a substantially circular shaft fitting hole 5a and a shaft fitting hole 5a.
In which a back line 5c is formed. When the grip member 5 having the back line 5c is used, the grip portion 7 has a substantially elliptical cross-section in which a back portion corresponding to the back line 5c is bulged along the axial direction. Accordingly, for the grip portion 7, the length of the major axis and the minor axis is measured, and the average value is defined as the outer diameter dimension D.

As described above, the present inventors obtain an optimal grip shape according to the length of the golf club so as to change the direction in which the arm moves smoothly according to the difference in the length of the golf club. It has been found that the swing feeling can be unified within a set of golf clubs.
Based on such knowledge, the inventors manufactured a test golf club set 1A whose specifications are shown in FIG. 10, and used the testers M-1 to M-20 described above to set the overall length L of the golf club 2.
A test hit test was performed on the shape of the grip portion 7.

In the golf club set 1A, each golf club 2 has a maximum length L of 54 inches (137).
1.6mm), minimum dimension is 34 inches (863.6m)
m) was constituted by eleven pieces with a 2-inch pitch.
Further, each golf club 2 has a grip portion 7 thereof.
The outer diameter D1 of the point P1 is changed in the range from the maximum diameter of 36 mm to the minimum diameter of 20 mm, the outer diameter D2 of the point P2 is changed in the range of the maximum diameter of 36 mm and the minimum diameter of 18 mm, and the outer diameter D3 of the point P3 is further changed. The maximum diameter is 36m
m, the minimum diameter was changed in the range of 18 mm. Furthermore, each golf club 2 was configured such that the taper ratio T from the point P1 to the point P3 was changed in the range of 0 to 40/1000. Golf club set 1A has a total length L
The golf club 2 having a length of 42 inches or more was formed of a wood-type club, and the golf club 2 having a total length L of 40 inches or less was formed of an iron-type club.

In the test hitting test of each golf club set 1,
Using the evaluation table 12 shown in FIG.
Each of the golf clubs 2 having different outer diameters of the grip portions 7 corresponding to the entire length L of the golf clubs -1 to M-20 swings several times, and feels that the grip portions 7 are most easily swung.
The average outer diameter of was confirmed. In the evaluation table 12, as shown in the figure, the carrier, handicap, and glove size for each of the testers M-1 to M-20 were made clear.

As a result of the above-described test hitting test for each golf club set 1, the evaluation data shown in FIGS. 12 to 23 were obtained. FIG. 12 shows a point P1 (from grip ends 9 to 5) corresponding to each golf club 2 having a different overall length L.
The data of the outer diameter dimension D1 (average value) of the grip portion 7 at which the testers M-1 to M-20 felt that the swing operation was the easiest at the respective positions (0 mm position) was shown in a list. FIG. 6 is a diagram showing a list of correlations between the outer diameter dimension D1 of the grip portion 7 and the overall length L of the golf club 2 obtained by regression analysis. FIG.
FIG. 7 is a diagram plotting the results of the above-described test hitting test with the vertical axis representing the outer diameter dimension D1 of the grip portion 7 and the horizontal axis representing the total length L of the golf club 2.

[Results of Group A (Beginner)] In the wood type golf club having a total length of 54 inches, the outer diameter D1
Was a maximum of 32.5 mm and a minimum of 28.0 mm, and the average was 30.5 mm. In a wood-type golf club having a total length of 42 inches, the outer diameter D1 is up to three.
2.0 mm, minimum 27.3 mm, average 29.4
mm was obtained. Further, in an iron-type golf club having a total length of 40 inches, the outer diameter dimension D1 is up to 31.
0 mm, minimum 27.3 mm, average 29.1 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D1 was 29.5 mm at the maximum and 26.1 mm at the minimum, and the average was 28.3 mm. For the outer diameter D1, the linear regression equation for the maximum value has a slope of 0.15 and an intercept of 25.1, the linear regression equation for the minimum value has a slope of 0.09 and an intercept of 23.3, and the primary regression equation for the average value has a The regression equation has a slope of 0.11 and an intercept of 24.5.
Met.

[Results of Group B (Intermediate)] In the wood type golf club having a total length of 54 inches, the outer diameter dimension D1
Was a maximum of 34.0 mm and a minimum of 26.8 mm, and the average was 30.1 mm. In a wood-type golf club having a total length of 42 inches, the outer diameter D1 is up to three.
2.3 mm, minimum 24.5 mm, average 27.3
mm was obtained. Further, in an iron-type golf club having a total length of 40 inches, the outer diameter dimension D1 is up to 31.
7 mm, minimum 24.0 mm, average 26.7 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D1 was a maximum of 31.3 mm and a minimum of 23.0 mm, and the average was 25.5 mm. For the outer diameter dimension D1, the linear regression equation for the maximum value has a slope of 0.14 and an intercept of 26.2, the linear regression equation for the minimum value has a slope of 0.20 and an intercept of 16.0, and the primary regression equation for the average value has a The regression equation has a slope of 0.25 and the intercept is 26.
It was 2.

[Results of Group C (Advanced)] In the wood type golf club having a total length of 54 inches, the outer diameter D1
Was a maximum of 24.0 mm and a minimum of 23.0 mm, and the average was 23.5 mm. Further, in a 42-inch long wood-type golf club, the outer diameter D1 is up to two.
3.5 mm, minimum 23.0 mm, average 23.3
mm was obtained. Further, in an iron type golf club having a total length of 40 inches, the outer diameter dimension D1 is at most 23.
0 mm, minimum 22.5 mm, average 22.8 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D1 was a maximum of 23.5 mm, a minimum of 23.0 mm, and the average was 23.3 mm. For the outer diameter dimension D1, the linear regression equation for the maximum value has a slope of 0.04 and the intercept 22.0, the linear regression equation for the minimum value has a slope of 0.01 and an intercept of 22.6, and The regression equation has a slope of 0.02 and an intercept of 22.3
Met.

FIG. 14 shows testers M-1 to M-20 at point P2 (position 100 mm from grip end 9) corresponding to golf clubs 2 having different overall lengths L.
Lists the data of the outer diameter D2 (average value) of the grip portion 7 which felt that the swing operation was most easy, and the outer diameter D2 of the grip portion 7 obtained by regression analysis of these result data and the golf club. FIG. 4 is a diagram showing a list of correlations with the overall length L of a club 2;

[Results of Group A (Beginner)] In the wood type golf club having a total length of 54 inches, the outer diameter D2
Was a maximum of 32.5 mm and a minimum of 28.0 mm, and the average was 30.5 mm. Further, in a wood-type golf club having a total length of 42 inches, the outer diameter D2 is 3 at the maximum.
1.5 mm, minimum 26.1 mm, average 28.8
mm was obtained. Further, in an iron type golf club having a total length of 40 inches, the outer diameter D2 is 31.
0 mm, minimum 26.3 mm, average 28.6 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D2 was 28.7 mm at the maximum and 25.1 mm at the minimum, and the average was 27.5 mm. For the outer diameter D2, the linear regression equation for the maximum value has a slope of 0.19 and the intercept 23.1, the linear regression equation for the minimum value has a slope of 0.16, and the intercept of 19.9. The regression equation has a slope of 0.16 and an intercept of 22.1
Met.

[Results of Group B (Intermediate)] In a wood type golf club having a total length of 54 inches, the outer diameter D2
Was a maximum of 34.0 mm and a minimum of 26.8 mm, and the average was 30.1 mm. Further, in a wood-type golf club having a total length of 42 inches, the outer diameter D2 is 3 at the maximum.
1.5 mm, minimum 23.8 mm, average 26.5
mm was obtained. Further, in an iron type golf club having a total length of 40 inches, the outer diameter D2 is 30.30 max.
9mm, minimum 23.2mm, average 25.8mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D2 was 30.1 mm at the maximum and 22.1 mm at the minimum, and the average was 24.3 mm. For the outer diameter D2, the linear regression equation for the maximum value has a slope of 0.21 and an intercept of 22.8, and the linear regression equation for the minimum value has a slope of 0.25 and an intercept of 13.3. The regression equation had a slope of 0.32 and an intercept of 13.0.

[Results of Group C (Advanced)] In the wood type golf club having a total length of 54 inches, the outer diameter dimension D2
Was 20.5 mm at the maximum and 19.5 mm at the minimum, and the average was 20.0 mm. Further, in a 42-inch wood-type golf club, the outer diameter D2 is 2 at the maximum.
0.5 mm, minimum 20.0 mm, average 20.3
mm was obtained. Further, in an iron-type golf club having a total length of 40 inches, the outer diameter D2 is 20.
0 mm, minimum 19.5 mm, average 19.8 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the maximum and minimum outer diameters D2 were 20.5 mm, respectively, and the average was 20.5 mm. As for the outer diameter D2, the linear regression equation for the maximum value has a slope of 0.03 and an intercept of 19.2, and the linear regression equation for the minimum value has a slope of -0.01 and an intercept of 20.6;
The linear regression equation of the average value was slope 0.01 and intercept 19.9.

FIG. 15 shows testers M-1 to M-1 at point P3 (position 200 mm from grip end 9).
-20 shows a list of data of the outer diameter D3 (average value) of the grip part 7 which felt that the swing operation was most easy, and the outer diameter of the grip part 7 obtained by regression analysis of these result data. D3 and Golf Club 2
FIG. 3 is a diagram showing a list of correlations with the total length L of the hologram.

[Results of Group A (Beginner)] In the wood type golf club having a total length of 54 inches, the outer diameter D3
Was a maximum of 32.5 mm and a minimum of 27.9 mm, and the average was 30.5 mm. In a 42-inch wood-type golf club, the outer diameter D3 is 3 at the maximum.
1.2 mm, minimum 25.9 mm, average 28.4
mm was obtained. Further, in an iron type golf club having a total length of 40 inches, the outer diameter D3 is 30.30 max.
6 mm, minimum 26.0 mm, average 28.2 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D3 was a maximum of 28.5 mm and a minimum of 24.8 mm, and the average was 27.2 mm. As for the outer diameter dimension D3, the linear regression equation relating to the maximum value has a slope of 0.20 and an intercept of 22.3, the linear regression equation relating to the minimum value has an inclination of 0.17 and an intercept of 19.1, and the primary regression equation relating to an average value has a linear value. The regression equation has a slope of 0.17 and an intercept of 21.3.
Met.

[Results of Group B (Intermediate)] In the wood type golf club having a total length of 54 inches, the outer diameter D3
Was a maximum of 34.0 mm and a minimum of 26.8 mm, and the average was 30.1 mm. In the case of a 42-inch wood-type golf club, the outer diameter D3 is up to two.
9.8 mm, minimum 23.4 mm, average 25.8
mm was obtained. Further, in an iron type golf club having a total length of 40 inches, the outer diameter D3 is 28.
9mm, minimum 22.7mm, average 25.0mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D3 was 27.1 mm at the maximum and 21.2 mm at the minimum, and the average was 22.9 mm. For the outer diameter D3, the linear regression equation for the maximum value has a slope of 0.38 and an intercept of 13.9, the primary regression equation for the minimum value has a slope of 0.29 and an intercept of 11.2, and The regression equation had a slope of 0.39 and an intercept of 9.5.

"Results from Group C (advanced)" In the wood type golf club having a total length of 54 inches, the outer diameter D3
Was a maximum of 19.0 mm and a minimum of 18.5 mm, and the average was 18.8 mm. In a 42-inch wood-type golf club, the outer diameter D3 is 1 at the maximum.
9.5 mm, minimum 18.5 mm, average 19.0
mm was obtained. Further, in an iron type golf club having a total length of 40 inches, the outer diameter dimension D3 is at most 19.
0 mm, minimum 18.5 mm, average 18.8 mm
Was obtained. In the iron type golf club having a total length of 34 inches, the outer diameter D3 was a maximum of 19.5 mm and a minimum of 18.5 mm, and the average was 19.0 mm. For the outer diameter D3, the primary regression equation for the maximum value has a slope of 0.00 and an intercept of 19.1, the linear regression equation for the minimum value has a slope of 0.01 and an intercept of 18.4, and the primary regression equation for the average value is The regression equation has a slope of 0.00 and an intercept of 18.8
Met.

FIG. 16 shows the average outer diameter Dave and the total length L of the golf club 2 at points P1 to P3 of the grip portion 7 at which each of the testers M-1 to M-20 felt that the swing operation was most easy. FIG. 6 is a diagram showing a list of correlations of the above. The average outer diameter Dave is the average of the outer diameters D1 to D3 at the points P1 to P3 for each constituent golf club.
ve = (D1 + D2 + D3) / 3 is the outer diameter dimension obtained.

FIG. 17 shows a beginner group (group A).
FIG. 3 is a diagram plotting the test results of the above, with the average outer diameter dimension Dave described above as the vertical axis and the total length L of the golf club 2 as the horizontal axis. FIG. 18 also shows the average outer diameter Da of the test results of the intermediate class (group B).
FIG. 3 is a diagram in which ve is plotted on the vertical axis, and the total length L of the golf club 2 is plotted on the horizontal axis. Further, FIG. 19 shows the average outer diameter Dave as the vertical axis and the horizontal axis represents the total length L of the golf club 2 in the test results of the advanced group (group C).
FIG.

[Results of Group A (Beginner)] In the wood type golf club having a total length of 54 inches, the average outer diameter Dave was 32.5 mm at the maximum, 28.0 mm at the minimum, and 30.5 mm overall. The result was obtained. In a 42-inch wood-type golf club, the average outer diameter Dave is 31.6 mm at the maximum and 26.4 mm at the minimum.
And the result was that the overall average was 28.9 mm. Further, in an iron type golf club having a total length of 40 inches, the average outer diameter Dave is 30.9 mm at the maximum and 2 at the minimum.
6.5 mm, and the overall average was 28.6 mm. In an iron-type golf club having a total length of 34 inches, the average outer diameter Dave is 28.9 mm at the maximum and 2 at the minimum.
5.3 mm, and the overall average was 27.7 mm. The average outer diameter dimension Dave is such that the linear regression equation for the maximum value has a slope of 0.18 and an intercept of 23.5, and the linear regression equation for the minimum value has a slope of 0.14 and an intercept of 20.8, and The linear regression equation had a slope of 0.15 and an intercept of 22.6.

[Results of Group B (Intermediate)] In the wood type golf club having a total length of 54 inches, the average outer diameter Dave was 34.0 mm at the maximum, 26.8 mm at the minimum, and 30.1 mm overall. The result was obtained. In a 42-inch wood-type golf club, the average outer diameter Dave is 31.2 mm at the maximum and 23.9 mm at the minimum.
And the result was that the overall average was 26.5 mm. Further, in an iron-type golf club having a total length of 40 inches, the average outer diameter Dave is 30.5 mm at maximum and 2 mm at minimum.
The result was 3.3 mm, and the overall average was 25.8 mm. In an iron type golf club having a total length of 34 inches, the average outer diameter Dave is 29.5 mm at the maximum and 2 at the minimum.
2.1 mm, and the overall average was 24.2 mm. The average outer diameter dimension Dave is such that the linear regression equation for the maximum value has a slope of 0.24 and an intercept of 21.0, the linear regression equation for the minimum value has a slope of 0.25 and an intercept of 13.6, and The linear regression equation had a slope of 0.32 and an intercept of 13.1.

[Results of Group C (Advanced)] In the wood type golf club having a total length of 54 inches, the average outer diameter Dave is 21.2 mm at the maximum, 20.3 mm at the minimum, and 20.8 mm in the overall average. The result was obtained. Further, in the wood type golf club having a total length of 42 inches, the average outer diameter Dave was 20.8 mm at both the maximum and minimum, and the overall average was 20.8 mm. Further, in an iron type golf club having a total length of 40 inches, the average outer diameter Dave is 20.5 mm at the maximum and 20.3 mm at the minimum.
mm, and the overall average was 20.4 mm. In an iron type golf club having a total length of 34 inches, the average outer diameter Dave is 21.0 mm at the maximum and 20.8 mm at the minimum.
mm, and the overall average was 20.9 mm. The average outer diameter Dave is such that the linear regression equation for the maximum value has a slope of 0.03 and an intercept of 19.8, and the linear regression equation for the minimum value has a slope of -0.01 and an intercept of 20.9. The linear regression equation for 0.01, intercept 20.
It was 3.

FIG. 20 is a graph showing the relationship between the average taper ratio Tave of the points P1 to P3 of the grip portion 7 at which the testers M-1 to M-20 felt that the swing operation was most easy and the total length L of the golf club 2, respectively. It is the figure which showed the correlation as a list. Note that the average taper ratio Tave is a gradient of a linear regression equation obtained based on the difference between the outer diameters D1 to D3 at the points P1 to P3 for each golf club.

FIG. 21 is a diagram plotting the test results of the beginner group (group A) with the average taper ratio Tave described above as the ordinate and the overall length L of the golf club 2 as the abscissa. FIG. 22 shows an intermediate level group (group B).
FIG. 7 is a graph plotting the test results in the same manner, with the average taper ratio Tave as the vertical axis and the total length L of the golf club 2 as the horizontal axis. FIG. 23 also shows the average taper ratio Ta for the test results of the advanced user group (group C).
FIG. 3 is a diagram in which ve is plotted on the vertical axis, and the total length L of the golf club 2 is plotted on the horizontal axis.

[Results of Group A (Beginner)] In the wood type golf club having a total length of 54 inches, the average taper Tave is 0.001 at the maximum and 0.000 at the minimum, and the total average is 0.000. The result was obtained. In addition, total length 42
In an inch wood type golf club, the average taper Tave is a maximum of 0.008 and a minimum of 0.004,
A result with an overall average of 0.006 was obtained. Furthermore, total length 40
In an inch-type iron type golf club, the average taper ratio Tave was 0.009 at the maximum and 0.003 at the minimum, and a result of 0.005 as the whole average was obtained. In an iron-type golf club having a total length of 34 inches, the average taper ratio Tave was 0.009 at the maximum and 0.003 at the minimum, and the average was 0.007. The average taper ratio Tave is obtained by calculating the linear regression equation relating to the maximum value with a slope of −0.0.
0005, the intercept is 0.026, and the linear regression equation relating to the minimum value is −0.0002, the intercept is 0.010,
The linear regression equation for the average value was slope -0.0004 and intercept 0.019.

[Results of Group B (Intermediate)] In the wood type golf club having a total length of 54 inches, the average taper ratio Tave was 0.001 at the maximum and 0.000 at the minimum, and the average was 0.000. I got In a 42-inch wood-type golf club, the average taper ratio T
ave was 0.017 at the maximum and 0.006 at the minimum, and the result was 0.009 as the overall average. Furthermore, in the iron type golf club having a total length of 40 inches, the average taper ratio Tave was 0.019 at the maximum and 0.008 at the minimum, and the result was 0.011 in the overall average. In an iron type golf club having a total length of 34 inches, the average taper ratio Tav
e was 0.028 at the maximum and 0.012 at the minimum, and the overall average was 0.017. And the average taper rate Ta
ve is a linear regression equation relating to the maximum value having a slope of −0.001.
5. The intercept was 0.081, the linear regression equation for the minimum value was -0.0006, the intercept was 0.031, and the linear regression equation for the average value was -0.0009, and the intercept was 0.046.

[Results of Group C (Advanced)] In the wood type golf club having a total length of 54 inches, the average taper Tave was 0.031 at the maximum, 0.027 at the minimum, and 0.029 at the overall average. I got In a 42-inch wood-type golf club, the average taper ratio T
ave was 0.031 at the maximum and 0.021 at the minimum, and the result was 0.026 in the overall average. Further, in the iron type golf club having a total length of 40 inches, the average taper ratio Tave was 0.028 at the maximum and 0.021 at the minimum, and the result was 0.024 as the whole average. In an iron type golf club having a total length of 34 inches, the average taper ratio Tav
e was 0.031 at the maximum, 0.021 at the minimum, and the result that the overall average was 0.026 was obtained. And the average taper rate Ta
ve is a linear regression equation for the maximum value having a slope of 0.000.
0, the intercept is 0.028, the linear regression equation for the minimum value is the slope 0.0002, the intercept 0.015, and the linear regression equation for the average value is the slope 0.0001, the intercept 0.022.
Met.

[Overall Consideration] From the results of the above-described test hitting test, for beginners, a golf club having a so-called dull trunk with a large diameter and a small taper ratio of the outer diameter D of the grip portion 7 of 25 mm or more regardless of the total length L. As a result, it was found that the swing operation was easily performed about two times. In addition, in the intermediate level, the golf club 2 having a so-called “zipped body” was more likely to perform a swing operation as the overall length L was larger and the outer diameter D of the grip portion 7 was larger and the taper ratio was smaller. In addition, for advanced users, a result was obtained that the golf club 2 of the conventional general specification easily performs a swing operation.

That is, for an intermediate player, the golf club 2 having a larger outer diameter D and a smaller taper is more likely to perform a swing operation as the total length L is longer, and the outer diameter of the grip 7 as the total length L is shorter. It is concluded that the golf club 2 having a smaller dimension D and a larger taper is more likely to perform a swing operation.

At the time of the above-mentioned test hit test, each tester was asked "the degree of uniformity of the swing feeling of each golf club 2 in the golf club set 1A".
Asked about. An intermediate person's answer to this question can be summarized as “the golf club 2 has its full length L
By changing the outer diameter dimension D and the taper ratio T of the grip portion 7 corresponding to the above, each golf club 2 can easily perform a swing operation individually, and finally perform a swing operation regardless of the overall length L. Swing feeling is now a unified club set. "It was.

The advanced player is a so-called single player with a career of 10 years or more.
Irrespective of the overall length L of the golf club, it is preferable that the outer diameter D of the grip portion 7 be constant within a range close to a conventional golf club. The expert is judged to have received such a reply because the influence of the conventional golf club on the golf club is extremely large. Experts reported that they did not feel uncomfortable in the conventional golf club test hit test.

A beginner answered that the golf club 2 in which the outer diameter D of the grip portion 7 was larger irrespective of the total length L was easier to swing. These beginners are unfamiliar with the swing operation of the golf club 2 itself, and judge that such an answer was received because the swing operation was simplified by the large outer diameter D of the grip portion 7. Is done.

Focusing on the results of the above-described test hitting test, especially those of intermediate golfers, the golf club set 1A has some individual differences, but for each golf club 2 constituting the golf club set 1A, the overall length L and the tester have the highest swing operation. The outer diameter D and the taper ratio T of the grip part 7 which felt easy to handle
Has a linear correlation with. In each of the golf clubs 2, the correlation formula relating to the minimum value of the outer diameter D of the grip portion 7 that each tester felt most easily swingable with respect to the overall length L is: D1 = 16.0 + 0.2 × L D2 = 13.3 + 0.25 × L D3 = 11.2 + 0.29 × L Dave = 13.6 + 0.25 × L

In the golf club 2, the correlation formula of the maximum taper rate Tmax of the grip portion 7 which the tester perceived to be the most easy to swing with respect to the overall length L is: Tmax = 0.081-0.0015 × L Is shown.

Further, regarding the golf club 2 having the total length L longer than 50 inches, the tendency of T = 0 is large regardless of the total length L.

As is clear from the results of the above-described test hitting test, the golf club 2 has an outer diameter D1 at the point P1,
Since the outer diameter D2 of the point P2 and the outer diameter D3 of the point P3 are each at least 25 mm or more, a good swing feeling can be given to a beginner. In other words, the golf club 2 has an average outer diameter Da of at least 50 mm to 200 mm from the grip end 9 toward the tip end for beginners.
ve is configured to be at least 25 mm or more.

Further, as is clear from the results of the above-described test hitting test, the golf club 2 has a favorable average taper ratio Tave from the point P1 to the point P3 of 10/1000 or less, so that the golf club 2 is good for beginners. Gives a feeling of swing. In other words, golf club 2
Is designed for beginners to have a taper ratio Tave of not more than 10/10000 in a range of at least 50 mm to 200 mm from the grip end 9 toward the distal end.

As is clear from the results of the above-described test hitting tests, the golf club set 1 is constructed such that each of the constituent golf clubs 2 has an outer diameter D1 at the point P1, an outer diameter D2 at the point P2, and an outer diameter at the point P3. By setting D3 to be at least 25 mm or more to give a good feeling of swing to beginners,
As a whole, the feeling of swing can be unified.
In other words, the golf club set 1 combines the golf clubs 2 so that the average outer diameter Dave in the range of 50 mm to 200 mm from the grip end 9 toward the tip end for the beginner is 25 mm or more. Be composed.

As described above, the grip portion 5 is mounted on the shaft 4 of the golf club 2 to form the grip portion 7. In other words, in the golf club 2, the outer diameter D of the grip 7 is determined by the outer diameter of the shaft 4 and the thickness of the grip member 5. Therefore, in order to achieve the above-described characteristics, the golf club 2 is provided with the grip member 5 having the grip member 5 attached at least in a range of 50 mm to 200 mm from the grip end 9 toward the distal end for beginners. 6m for diameter
The shafts 4 each having an outer diameter dimension not thinner than m may be provided. The shaft 4 has a grip portion 7 having a taper ratio of not more than 10/10000 in a range of 50 mm to 200 mm from the grip end 9 toward the distal end.
Is configured.

In order to achieve the above-described characteristics, the golf club 2 has a thickness of at least 3 mm or more in a state before being mounted on the shaft 4 within a range of at least 50 mm to 200 mm from the grip end 9 toward the distal end. What is necessary is just to provide the grip member 5 which has. In addition, before the grip member 5 is attached to the shaft 4, the outer diameter D of a portion of at least 50 mm to 200 mm from the grip end 9 toward the distal end portion is 25 mm.
What is necessary is just to be comprised above.

Further, the golf club set 1 is designed for intermediate golfers, and the golf clubs 2 are combined so that the outer diameter D gradually increases as the overall length L increases. The golf club 2 is configured to be combined so that the taper ratio T becomes gradually gentler as the total length L becomes longer. As a result, the golf club set 1 gives a good swing feeling to intermediate players.

The golf club set 1 is composed of a set of shafts 4 for intermediate golfers, in which the outer diameter of the grip portion 7 gradually increases as the overall length L increases. It is configured in combination. In addition, the golf club set 1 is used for intermediate golfers, provided that each golf club 2 is combined with a set of shafts 4 in which the taper ratio of the grip portion 7 becomes gradually gentler as the total length L becomes longer. Good.

The set of the grip members 5 has an outer diameter of at least 50 mm to 200 mm from the grip end 9 toward the tip end as the total length L becomes longer in order to constitute the golf club set 1 for intermediate golfers. Those whose dimensions gradually increase in diameter are combined. In addition, the set of the grip members 5 constitutes the grip portions 7 in which the average taper ratio of at least 50 mm to 200 mm from the grip end 9 toward the distal end gradually becomes gradually smaller as the total length L becomes longer. Be combined.

[0094]

First Embodiment: Embodiment of Golf Club Set for Beginners FIG. 24 shows a golf club set 1 having the above-described characteristics and a golf club set 1 of the first embodiment specifically manufactured as a golf club 2 having the same configuration. FIG. 3 is a diagram showing a list of specifications of a set 20 and golf clubs constituting the set 20. The golf club set 20 has a total length L of 4 as shown in FIG.
It is composed of four wood-type golf clubs of 5.0 inches to 41.5 inches and nine iron-type golf clubs having a total length L of 38.5 inches to 35.5 inches.

In the No. 1 wood having a total length of 45.0 inches, the grip portion 7 has an outer diameter D1 at a point P1 of 50 mm from the grip end 9 of 26.0 mm and 100 m.
The outer diameter dimension D2 at point P2 of m is 25.5 m
m, the outer diameter D3 at the point P3 of 200 mm is 25.0 mm, and the average outer diameter Dave is 25.0 mm.
5 mm, and the taper ratio T is set to 0.006. In the first wood, the outer diameter corresponding to the point P1 is 20.4 mm, the outer diameter corresponding to the point P2 is 19.7 mm, and the outer diameter corresponding to the point P3 is 19.0 mm. A shaft having a diameter of 19.7 mm and a taper ratio of 0.009 is used.

The first wood had a specification before fitting to the above-mentioned shaft that the outer diameter corresponding to the point P1 was 25.8 mm, the outer diameter corresponding to the point P2 was 25.2 mm, Outer diameter corresponding to point P3 is 2
4.5 mm, average outer diameter 25.2 mm, taper ratio 0.2.
008 is used. This grip member has a thickness of 2.8 m corresponding to the point P1.
m, the thickness corresponding to the point P2 is 2.9 mm, the thickness corresponding to the point P3 is 3.0 mm, and the average thickness is 2.9 mm.

As can be seen from the figure, the golf club set 20 has a 3rd wood having a total length of 42.5 inches, a 4th wood having a total length of 42.0 inches, and a 5th wood having a total length of 41.5 inches. , And the grip portions are each configured similarly to the above-mentioned No. 1 wood. The golf club set 20 uses shafts and grip materials having the same specifications as those of No. 1 wood for the shafts and grip materials of these wood clubs.

As is apparent from the figure, the golf club set 20 has a grip portion of the above-described No. 1 iron for an approach wedge having a total length of 38.5 inches and a total length of 35.5 inches or less. It is configured the same as wood. The golf club set 20 uses a shaft and a grip material having the same specifications as the first wood for the shaft and the grip material for these iron clubs.

The golf club set 20 constructed as described above was tested by a tester belonging to the above-mentioned group A. As a result, the swing operation of each of the golf clubs was simplified to improve the feeling of swing. Respondents said that this was achieved. In addition, the golf club set 20 was extremely popular because it was answered that the swing feeling was unified throughout the set.

[0100]

Second Embodiment: Embodiment of Golf Club Set for Intermediate Player FIG. 25 shows a golf club set 1 having the above-described characteristics and a golf club set 2 of the second embodiment specifically manufactured as a golf club 2. FIG. 3 is a diagram showing a list of specifications of a club set 30 and each golf club constituting the same. The golf club set 30 has a total length L of 4 as shown in FIG.
It is composed of four wood type golf clubs of 8.0 inches to 42.5 inches and nine iron type golf clubs having a total length L of 41.0 inches to 35.0 inches. In the golf club set 30, the grip portion 7 of the golf club set 20 of the first embodiment is configured to have the same specifications for each golf club. However, the outer diameter D and the taper ratio are appropriately adjusted according to the overall length L. It is characterized in that T and T are changed.

In the No. 1 wood having a total length of 48.0 inches, the grip portion 7 has an outer diameter D1 at a point P1 of 50 mm from the grip end 9 of 26.0 mm and 100 m.
The outer diameter dimension D2 at point P2 of m is 25.5 m
m, the outer diameter D3 at the point P3 of 200 mm is 25.0 mm, and the average outer diameter Dave is 25.0 mm.
5 mm, and the taper ratio T is set to 0.006. The first wood is configured such that the specifications of the grip portion 7 are the same as the specifications of the first wood grip portion 7 of the golf club set 20 described above. The No. 1 wood has the same outer diameter specification before the grip member is fitted to the shaft, but has a different thickness specification and a different shaft specification.

That is, the first wood has the point P1
, The outer diameter corresponding to point P2 is 17.1 mm, the outer diameter corresponding to point P3 is 16.6 mm, the average outer diameter is 17.1 mm,
A shaft having a taper ratio of 0.0064 is used. The grip member has an outer diameter dimension corresponding to the point P1 of 25.8 m before being fitted to the shaft.
m, the outer diameter corresponding to the point P2 is 25.2 mm,
The outer diameter dimension corresponding to the point P3 is 24.5 mm, the average outer diameter is 25.2 mm, and the taper ratio is 0.008.
The thickness of the grip member corresponding to each of the points P1 to P3 is 4.2 mm and is the same.

On the other hand, for example, in the case of No. 5 wood having a total length of 42.5 inches, the grip portion 7 has the grip end 9
Outer diameter D1 at point P1 50 mm from
The outer diameter D2 at the point P2 of 5.2 mm and 100 mm is 24.0 mm, the outer diameter D3 at the point P3 of 200 mm is 22.5 mm, the average outer diameter Dave is 23.9 mm, and the taper ratio T is 0. .0
18. In the fifth wood, the outer diameter corresponding to the point P1 is 16.92 mm, the outer diameter corresponding to the point P2 is 16.21 mm, the outer diameter corresponding to the point P3 is 15.50 mm, and the average outer diameter is A shaft having a specification of 16.21 mm and a taper ratio of 0.0091 is used.

In the No. 5 wood, the specifications before fitting to the shaft described above were such that the outer diameter corresponding to the point P1 was 25.0 mm, the outer diameter corresponding to the point P2 was 23.7 mm, The outer diameter dimension corresponding to point P3 is 2
2.0 mm, average outer diameter 23.5 mm, taper ratio 0.
020 is used. The grip member has a thickness of 4.12 mm corresponding to the point P1,
The thickness corresponding to the point P2 is 3.90 mm, the thickness corresponding to the point P3 is 3.48 mm, and the average thickness is 3.83 mm.

A 3 iron having a total length of 41.0 inches is
The grip portion 7 has an outer diameter D1 at a point P1 50 mm from the grip end 9 at 24.9 mm, 100 mm.
The outer diameter D2 at the point P2 of 2 mm is 23.6 m.
m, the outer diameter D3 at a point P3 of 200 mm is 21.8 mm, and the average outer diameter Dave is 23.2.
4 mm, and the taper ratio T is set to 0.021. The third iron has an outer diameter dimension corresponding to the point P1 of 16.74 mm, an outer diameter dimension corresponding to the point P2 of 15.97 mm, an outer diameter dimension corresponding to the point P3 of 15.20 mm, and an average outer diameter. 15.97 mm,
A shaft having a taper ratio of 0.0099 is used.

The specifications before the fitting to the shaft described above are such that the outer diameter corresponding to the point P1 is 24.7 mm, the outer diameter corresponding to the point P2 is 23.3 mm, A grip member having an outer diameter dimension corresponding to the point P3 of 21.3 mm, an average outer diameter of 23.1 mm, and a taper ratio of 0.023 is used. This grip member has a thickness of 4.0 corresponding to the point P1.
9mm, wall thickness corresponding to point P2 is 3.82m
m, the thickness dimension corresponding to the point P3 is 3.28 mm,
The average thickness is 3.73 mm.

Further, in the approach wedge having a total length of 35.0 inches, the grip portion 7 has the outer diameter D1 at the point P1 of 50 mm from the grip end 9 set to 24.
Outer diameter D at point P2 of 0 mm and 100 mm
2 is 22.0 mm, the outer diameter D3 at a point P3 of 200 mm is 19.0 mm, and the average outer diameter D is
ave is 21.7 mm and the taper ratio T is 0.033. This approach wedge has an outer diameter of 16.0 mm corresponding to the point P1 and a point P1.
The outer diameter corresponding to point 2 is 15.0 mm, the outer diameter corresponding to point P3 is 14.0 mm, and the average outer diameter is 15.0.
A shaft having a specification of mm and a taper ratio of 0.0129 is used.

The approach wedge has the following specifications before fitting to the shaft: the outer diameter corresponding to the point P1 is 23.8 mm; the outer diameter corresponding to the point P2 is 21.7 mm; A grip member having an outer diameter dimension corresponding to P3 of 18.5 mm, an average outer diameter of 21.3 mm, and a taper of 0.035 is used. This grip member has a thickness dimension corresponding to the point P1 of 4.0 mm and a thickness dimension corresponding to the point P2 of 3.5.
mm, the thickness corresponding to the point P3 is 2.5 mm,
The average thickness is set to 3.33 mm.

The golf club set 30 constructed as described above was tested by a tester in the above-mentioned group B. As a result, the swing operation of each golf club was further simplified, thereby improving the feeling of swing. Respondents said that this was achieved. In addition, the golf club set 30 was very popular because it was answered that the swing feeling was unified throughout the set.

[0110]

As described above in detail, according to the golf club set according to the present invention, each golf club constituting the set emphasizes the arm swing operation in the left-right direction according to the difference in length. Form and up and down arms
A golf club that achieves a unified feeling of overall swing sensation without discomfort because smooth swing operation is performed by being adjusted and configured with a form that emphasizes arm lowering movement The set is composed.

Further, according to the shaft set for a golf club set according to the present invention, for each golf club having a different overall length, the arm swing operation in the left-right direction can be smoothly performed for a long golf club and the golf club can be short. As for the golf club, the arm raising / lowering operation in the vertical direction can be performed smoothly, so that it is possible to manufacture a golf club set in which there is no sense of incongruity and the unified feeling of the swing as a whole is achieved.

Further, according to the grip member set for a golf club set according to the present invention, for each golf club having a different overall length, the arm swing operation in the left-right direction can be performed smoothly for a long golf club. Since the up-and-down arm raising / lowering operation can be performed smoothly for a short golf club, it is possible to manufacture a golf club set in which a sense of unity of a swing feeling without a sense of incongruity is achieved as a whole.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a configuration of a golf club set according to the present invention.

FIG. 2 is a front view of a golf club (wood club) constituting the golf club set.

3A and 3B are diagrams illustrating a configuration of a grip portion of a golf club provided with a grip member without a backline. FIG. 3A is a front view of a main part, FIG. FIG. (C) is a longitudinal sectional view showing a state where the grip member is mounted.

4A and 4B are diagrams illustrating a configuration of a grip portion of a golf club provided with a grip member with a back line, wherein FIG. 4A is a longitudinal section of the grip member, and FIG. FIG.

FIG. 5 is an explanatory view of a state in which the golf club is gripped (interlocking grip).

FIG. 6 is an explanatory diagram of a state of a left hand in an interlocking grip.

FIG. 7 is an explanatory diagram of a state of the right hand in the grip.

FIG. 8 is an explanatory diagram of a grip position in a gripped state (interlocking grip).

FIG. 9 is a diagram showing a list of the results of measuring each grip position of each tester who gripped the golf club.

FIG. 10 is a view showing a list of specifications of a golf club set used in a test hit test.

FIG. 11 is a diagram showing an example of an evaluation table used in a test hit test of a golf club.

FIG. 12 is a diagram illustrating a golf club in which the outer diameter of the grip portion is varied according to the overall length. In a test hit test, each tester feels that the swing operation was most easily performed with respect to the overall length. 4) is a diagram showing a test result of the outer diameter dimension D1 (average value) of the grip portion and a list of correlations between the outer diameter size D1 of the grip portion and the overall length L of the golf club obtained by regression analysis of the test result. .

FIG. 13 is a tabulated graph of the outer diameter dimension D1 and the overall length L of the grip portion of the golf club based on the result of the test hitting test.

FIG. 14 is a diagram showing a state where the grip end is 1 in the same trial test.
A test result of the outer diameter D2 (average value) of the grip portion at the 00 mm position (P2) and a list of correlations between the outer diameter D2 of the grip portion and the total length L of the golf club obtained by regression analysis of the test results are shown. FIG.

FIG. 15 is a diagram showing a state where the grip end is 2 in the same hit test.
A list of the experimental results of the outer diameter D3 (average value) of the grip portion at the 00 mm position (P3) and a correlation list between the outer diameter D3 of the grip portion and the overall length L of the golf club obtained by regression analysis of the experimental results. FIG.

FIG. 16 shows an experimental result of the average outer diameter Dave (average value) of the grip portion in the same test hitting test, and an average outer diameter Dave of the grip portion and a total length L of the golf club obtained by regression analysis of the experimental result. It is a figure showing a list of correlations with.

FIG. 17 is a tabulated graph of the total length L of the golf club and the average outer diameter Dave of the grip portion based on the results of the test hitting test, and shows the results of a beginner group.

FIG. 18 is a tabulated graph of the total length L of the golf club and the average outer diameter Dave of the grip portion based on the results of the test hitting test, and shows the results of a middle-class person.

FIG. 19 is a tabulated graph of the total length L of the golf club and the average outer diameter Dave of the grip portion based on the result of the test hitting test, and shows the results of a senior group.

FIG. 20 shows an experimental result of an average taper ratio Tave (average value) of a grip portion in the trial hitting test, and an average taper ratio Tave of the grip portion and a total length L of the golf club obtained by regression analysis of the experimental result. It is a figure showing a correlation list.

FIG. 21 is a tabulated graph of the total length L of the golf club and the average taper ratio Tave of the grip portion based on the result of the test hitting test, and shows the result of a beginner group.

FIG. 22 is a tabulated graph of the total length L of the golf club and the average taper ratio Tave of the grip portion based on the results of the test hitting test, and shows the result of an intermediate player group.

FIG. 23 is a tabulated graph showing the total length L of the golf club and the average taper ratio Tave of the grip portion based on the results of the test hitting test, and shows the results of an advanced player group.

FIG. 24 is a view showing a set specification list shown as a first embodiment of the golf club set according to the present invention.

FIG. 25 is a view showing a set specification list shown as a second embodiment of the golf club set according to the present invention.

FIG. 26 is an analysis diagram of a swing operation of the golf club, showing a first element operation.

FIG. 27 is an analysis diagram of a swing operation of the golf club, showing a second element operation.

FIG. 28 is a set configuration diagram of a conventional golf club.

FIG. 29 is a set configuration diagram of a conventional long golf club.

FIG. 30 is a dimensional view of a grip portion of a conventional golf club.

[Description of Signs] 1 Golf Club Set, 2 Golf Club, 3 Club Head, 4 Shaft, 5 Grip Member, 5b Shaft Hole, 6 Head, 7 Grip, 9 Grip End, 10 Left Hand Sensation Area, 11 Right Hand Sensation Area , 1
2 Evaluation table

Claims (17)

[Claims] 1. A golf club in which a grip member is mounted on one end of a shaft to form a grip portion and a head is mounted on the other end, wherein the grip portion is at least 50 mm axially from the grip end. A golf club characterized in that its average outer diameter is set to 25 mm or more in a region within a range of from 200 mm to 200 mm. 2. A golf club in which a grip member is mounted on one end of a shaft to form a grip portion and a head is mounted on the other end, wherein the grip portion is at least 50 mm in an axial direction from a grip end. And a taper of 10/10
A golf club characterized by being set to be 00 or less. 3. A golf club in which a grip member is formed by attaching a grip member to one end of a shaft, and a head is attached to the other end of the shaft. A golf club characterized in that the diameter is gradually reduced in a portion within a range of 50 mm to 200 mm, the average outer diameter is 25 mm or more, and the average taper is 10/1000 or less. 4. A golf club comprising at least two golf clubs having different overall lengths, a grip member being attached to one end portion to form a grip portion, and a different head being attached to the other end portion. In the golf club set except for the putter, each golf club has an average outer diameter gradually increasing from the grip end of the grip portion in a range of 50 mm to 200 mm in the axial direction from the grip end according to the golf club having a longer overall length. A golf club set comprising a combination of the following. 5. A golf club comprising at least two golf clubs having different total lengths, a grip member being mounted on one end portion to form a grip portion, and a different head being mounted on the other end portion. In the golf club set excluding the putter, each of the golf clubs has a portion in a range of 50 mm to 200 mm in an axial direction from the grip end of the grip portion, which gradually becomes smaller in diameter, and has an average taper ratio according to the golf club having a longer overall length. A golf club set characterized in that the golf club set is configured to be gradually loosened. 6. A golf club comprising at least two golf clubs having different total lengths, a grip member being attached to one end portion to form a grip portion, and a different head being attached to the other end portion. In the golf club set excluding the putter, the diameter of each golf club is gradually reduced in a range of 50 mm to 200 mm in the axial direction from the grip end of the grip portion, and the average outer diameter is increased according to the golf club having a longer overall length. A golf club set characterized by being configured so that the dimensions are gradually increased and the average taper is gradually reduced. 7. A golf club shaft in which a grip member is attached to one end to form a grip portion and a head is attached to the other end, wherein at least a grip end of a portion constituting the grip portion is in an axial direction. A shaft in a range from 50 mm to 200 mm having an average outer diameter not more than 6 mm smaller than the average outer diameter of the entire grip portion. . 8. A golf club shaft in which a grip member is attached to one end and gradually becomes smaller in diameter and a head is attached to the other end, wherein at least one of the parts constituting the grip is provided. A shaft for a golf club, wherein a portion within a range of 50 mm to 200 mm in an axial direction from a grip end has an average taper ratio of not more than 10/10000. 9. A golf club shaft other than a putter shaft, comprising at least two rods having different total lengths, each of which has a grip member attached at one end to form a grip portion and a different head attached to the other end. In each of the sets, the golf club shafts are combined so that the average outer diameter of the portion in the range of 50 mm to 200 mm in the axial direction from the grip end gradually increases as the overall length increases. A set of golf club shafts characterized by being formed. 10. A putter comprising at least two or more wires having different total lengths, each having a grip member attached to one end thereof to form a grip portion having a gradually decreasing diameter, and having a different head attached to the other end. In the set of golf club shafts except for the golf club shaft, as the overall length becomes longer, the grip portion gradually decreases the average taper ratio of the portion in the range of 50 mm to 200 mm in the axial direction from the grip end. A set of golf club shafts, wherein the set is combined. 11. A putter comprising at least two or more wires having different total lengths, each having a grip member attached at one end to form a grip portion having a gradually decreasing diameter, and having a different head attached to the other end. In the set of golf club shafts except for the golf club shaft, as the overall length becomes longer, the grip portion gradually increases the average outer diameter of the portion in the range of 50 mm to 200 mm in the axial direction from the grip end. A golf club shaft set comprising a large diameter and an average taper ratio that is gradually reduced. 12. A golf club grip member which is attached to one end of a shaft having a head attached to a tip end and constitutes a grip portion, wherein at least 50 mm to 2 mm in axial direction from the grip end.
A grip member for a golf club, wherein an average thickness of a portion in a range of 00 mm is 3 mm or more before being attached to the shaft. 13. A golf club grip member which is attached to one end of a shaft having a head attached to a distal end portion and constitutes a grip portion, wherein at least 50 mm to 2 mm in axial direction from the grip end.
A grip member for a golf club, wherein an average outer diameter of a portion in a range of 00 mm is 25 mm or more before being attached to the shaft. 14. A golf club grip member which is attached to one end of a shaft having a head attached to a tip end and constitutes a grip portion, wherein at least 50 mm to 2 mm in the axial direction from the grip end.
A grip member for a golf club, wherein a portion having a range of 00 mm has an average thickness of 3 mm or more and an average outer diameter of 25 mm or more before being attached to the shaft. 15. A set of golf club grip members other than for putters, each of which is attached to one end of at least two or more shafts having different total lengths, each having a different head attached to a tip end thereof, and forming a grip portion. In the above, each golf club grip member is combined such that the average outer diameter of a portion at least in the range of 50 mm to 200 mm in the axial direction from the grip end is gradually increased as the overall length of the shaft becomes longer. A set of grip members for golf clubs, characterized in that they are constructed as follows. 16. A golf club excluding a putter, which is attached to one end of at least two or more shafts having different total lengths, each having a different head attached to a tip thereof, and forming a grip portion having a gradually decreasing diameter. In the set of grip members for golf clubs, the average taper ratio of a portion in a range of at least 50 mm to 200 mm in the axial direction from the grip end is gradually set as the length of the shaft becomes longer in each golf club grip member. A set of golf club grip members, characterized in that they are combined as described above. 17. A golf club, except for a putter, which is attached to one end of at least two or more shafts having different total lengths, each having a different head attached to a tip end thereof, and forming a grip portion having a gradually reduced diameter. In the set of grip members for golf clubs, the average outer diameter of each golf club grip member gradually increases as the length of the shaft becomes longer, at least in the range of 50 mm to 200 mm in the axial direction from the grip end. A set of golf club grip members, characterized in that they are combined so that the average taper ratio is set gradually gradually.