WO2007023693A1

WO2007023693A1 - Putter club and grip for putter club

Info

Publication number: WO2007023693A1
Application number: PCT/JP2006/315847
Authority: WO
Inventors: Michio Miwa
Original assignee: Michio Miwa
Priority date: 2005-08-26
Filing date: 2006-08-10
Publication date: 2007-03-01

Abstract

[PROBLEMS] To provide a putter club capable of performing accurate shot with high probability. [MEANS FOR SOLVING THE PROBLEMS] This putter club is so formed that a roughly cylindroid grip (3) with the maximum dimension of 30 to 50 mm in cross section is fitted to the rear end of a shaft (1) so that, when a player holds the putter club at the ready, the upper face of the grip can be tilted by 7 ± 4° relative to the axis of the shaft to the player's side. Since the putter club can be held such that both hands are aligned with each other and both fore fingers are holdingly extended in the direction of a putter head, the lines of both shoulders of the player can be easily positioned parallel with a line connecting the heels of both feet of the player to each other and an allowance is produced at the wrists of the player. As a result, the player can smoothly swing the putter club even if the player firmly holds the putter club.

Description

Specification

Putter clubs and grips for putter clubs

Technical field

[0001] The present invention relates to a putter club used in a golf game and a grip for the putter club.

Background art

[0002] The putter in golf play has a great influence on the score. Therefore, more accurate shots are required than other clubs.

It is said that it is important to put a line on both shoulders exactly parallel to the line connecting the heels of both feet in order to make a good shot in the putter. However, with conventional putter clubs, it is difficult to hold the shoulders of the lower hand in front or immediately in parallel, since both hands with narrow grips must be held upside down.

[0003]

Therefore, as shown in FIG. 8, a putter club having a very thick grip so that both hands can be held together has been developed (for example, Patent Documents 1 and 2).

The grip of the putter club of Patent Document 1 has a short and almost elliptical thickness, and the grip of Patent Document 2 has a cylindrical thickness.

[0004] Patent Document 1: Actual Kaihei 1 98667

Patent Document 2: Utility Model Registration No. 3112103

Disclosure of the invention

Problems to be solved by the invention

[0005] Since the putter clubs with extremely thick grips shown in Patent Documents 1 and 2 are gripped with both hands aligned (gripping as if they are held together), the lines on both shoulders are connected to the lines connecting the legs of both feet. Can be held parallel. However, if you try to grasp this putter club with both hands aligned, do not stretch the thumb side of both wrists strongly, you can not keep the lie angle, so during the swing There is a difficulty in that the extra force is applied and a smooth swing cannot be performed, resulting in variations in the distance that the hit ball rolls. The lie angle referred to here is Patterkura This means the angle between the horizontal ground and the shaft axis when the center of the head is in contact with the horizontal ground.

[0006] If the cause of the result as described in the previous section is analyzed, the natural gripping axis when holding both hands together and hanging them vertically is about 40-50 degrees with respect to the horizon. This is because the lie angle of a single club is about 70 to 75 degrees, and it is necessary to adjust it by strongly extending the thumb side of both wrists in order to fill this difference. It is easy to apply extra force during the swing, because you have to hold on!

In addition, the putter clubs used for competitions are different from iron clubs and wood clubs in terms of dimensions and shapes, and of course must satisfy these requirements.

[0007] An object of the present invention is to provide a putter club with a high probability that an accurate shot can be made.

Means for solving the problem

The putter club of the present invention employs the following means in order to achieve the above object. That is, in a butterfly club with an extremely thick grip attached to the rear end side of the shaft with the club head fixed at the tip, the grip has an approximate cross-sectional dimension of 30 to 50 mm so that both hands can be held together. It has an elliptical columnar shape and is characterized in that it is attached to the shaft so that the upper surface of the grip is tilted 7 plus or minus 4 degrees toward the front side with respect to the axis of the shaft when it is held with a putter club.

[0009] The putter club of the present invention is characterized in that a substantially elliptical columnar thick grip is inclined to the front side and fixed to a linear shaft, and the club head and the shaft are different from conventional ones. There is no place.

The grip has a substantially elliptical column shape that is symmetrical with respect to its axis, and is attached to the shaft so that the longitudinal direction becomes the major axis when the gripper is held. The length of the grip is not particularly limited, but generally 200 to 500 mm is recommended.

[0010] The "substantially elliptic cylinder" means that the cross section is a geometrical ellipse, not a force, but roughly represents the shape, and includes, for example, a polygonal shape. Cross section The external shape of the grip is almost the same as the front end force and rear end of the grip, but the size may be slightly different. For example, the rear end force of the grip may be directed toward the front end so that the cross section gradually increases or decreases. The grip end should be rounded so that there is no catching force on clothes.

[0011] When holding the putter club, the upper surface of the grip needs to have at least a length that allows both hands to be held together. For example, you can use both hands to hold hands together to pray when praying, or a pistol-type grip that removes the index finger from this handgrip and stretches it in the direction of the putter head. In addition to the “two-handed pistol-type grip” (hereinafter referred to as “two-handed pistol-type grip”), this includes a pseudo-two-handed pistol-type grip where one little finger is shifted between the ring finger and the middle finger of the other hand.

The upper surface of the grip is tilted 7 plus or minus 4 degrees toward the front of the shaft axis. This angle of 7 degrees is the result of the inventor's experience, and there are individual differences, but it is almost in the range of plus or minus 4 degrees.

If the cross-sectional dimension does not change from the front end force to the rear end, the grip upper surface is parallel to the grip axis, so the tilt angle between the grip axis and the shaft axis is also 7 plus minus 4 degrees. .

[0012] The putter club of the present invention can also be made by replacing the conventional putter club already used by exchanging the grip. In this case, as described in claim 2, the replacement grip has a substantially elliptical column shape with a maximum cross-sectional dimension of 30 to 50 mm, and the upper surface of the grip has a shaft fitting hole into which the shaft is inserted. It is characterized by being provided with an inclination of 7 brass minus 4 degrees with respect to the axis of the shaft. The material is not particularly limited. In addition to those made of hard resin or light alloy and lightened with a hollow inside, wood, foamed synthetic resin, synthetic rubber, etc. can be used. Also, when producing the grip, it is better to fix the one that has been vertically divided into two, with the adhesive sandwiched between the shafts.

[0013] In addition, the putter club of the present invention has a shape in which the front end of the grip protrudes from the shaft, so that it tends to be damaged by colliding with other clubs during storage. Accordingly, as described in claim 3, a protective cap made of metal or synthetic resin is provided at the front end of the grip. Is desirable.

The invention's effect

[0014] The putter club of the present invention has a substantially elliptical column shape with a maximum dimension in a cross section of 30 to 50 mm so that both hands can be gripped, and the upper surface of the grip is 7 plus or minus 4 toward the front side with respect to the axis of the shaft. Since it has a tilted grip, it has the following effects. First, when you hold it against a golf ball, you can hold it symmetrically with both hands aligned, so everyone can put both shoulder lines on both feet Can be positioned parallel to the line connecting the two.

And since the axis of the grip is gentler than the axis of the shaft, when both hands are held together, the degree of extending the wrist on the thumb side becomes smaller and there is room for the wrist. Can also make a smooth swing.

[0015] Also, compared to conventional putter clubs, since the hand is wide open and the grip is held, the flatness of the back of the hand or the palm is relatively flat, and it is strongly conscious that it is parallel to the face surface of the club head. Will be able to. Therefore, it is possible to swing with the pattern face accurately directed to the target direction.

In addition, in the case of a putter club with a length of around 40 inches, called a medium-sized putter, which is longer than the normal length of the putter club to the extent that it touches the body, its swing is compared to that of the normal length. Since more mechanical movement is required, the above effect appears more prominently.

[0016] The replacement grip of the invention described in claim 2 has a substantially elliptical column shape with a maximum dimension in a cross-section of 30 to 50 mm, and a shaft hole into which the shaft is inserted is provided on an upper surface of the grip. In contrast, since it is provided with an inclination of 7 plus or minus 4 degrees, the existing putter club can be easily changed to the putter club of the present invention only by replacing the grip. If the front end of the grip is provided with a protective cap (Claim 3), the grip portion can be protected from damage.

BEST MODE FOR CARRYING OUT THE INVENTION

[0017] Embodiments of the present invention will be specifically described below based on examples of the present invention shown in the accompanying drawings. Example

[0018] An embodiment of the present invention will be described with reference to Figs.

FIG. 1 is a plan view showing the entire putter club of the present invention. A club head 2 is fixed to a front end of a linear shaft 1 and a grip 3 is attached to a rear end side.

The grip 3 is made of a hard synthetic resin and is formed in a substantially elliptical column shape, and is attached to the shaft 1 with a certain inclination as shown in FIG. 2 which is a side view. That is, as shown in FIG. 3, the grip 3 is inclined by 7 plus or minus 4 degrees (about 7 degrees here) with respect to the axis LS of the shaft 1 with the upper surface line LH, which is the upper surface 3a of the grip. Installed! / Speak.

[0019] Here, the near side means the state when the player holds the putter club. As shown in Fig. 4, the grip 3 has the same outer shape from the front end force to the rear end, so the upper surface line LH is parallel to the axis LG of the grip 3, and the axis LG and the axis LS of the shaft 1 The inclination angle Θ is the same as the above angle.

The cross-sectional shape of the grip 3 is based on a vertically long ellipse, and the upper surface 3a on which both thumbs and index fingers are placed is a flat or gentle round curve, and the lower surface 3b is an arc.

The ratio of the horizontal cross-sectional dimension M and the vertical cross-sectional dimension H of the elliptical cross-section is suitably 1: 1.2 to 1: 1.5. Here, the cross-sectional vertical dimension H is 40 mm and the cross-sectional horizontal dimension M is 30 mm. The

As shown in FIG. 5, the grips 3 are each molded in a state of being divided into two in the vertical direction by a hard synthetic resin. In addition, a shaft fitting hole 3c into which the shaft 1 is fitted is provided in the inside so as to be inclined by about 7 degrees with respect to the axis of the dalip 3. The inside of the grip 3 is hollow, and ribs 3g that reinforce the shaft fitting hole 3c are arranged in various places. Further, the grip end 3d has a shaft fitting hole 3c closed and rounded.

[0021] When attaching the grip 3 to the shaft 1, align the shaft 1 so that the shaft 1 is sandwiched from both sides and fix it with an adhesive, and then fix the outer periphery of the grip 3 with tape.

In addition, the surface of the grip 3 is coated with a material that makes the surface feel soft, for example, a synthetic rubber with a thin sponge attached to the back, in order to make it easier to feel a close contact with the palm. [0022] The front end 3e of the grip 3 is greatly protruded from the shaft 1, and is easily damaged when combined with other clubs. Therefore, although omitted in FIGS. 1 to 3, it is protected as shown in FIG. Cap 4 is attached!

As shown in FIG. 6, this protective cap 4 is fitted so as to cover the front end of the grip 3, is made by press-forming a thin steel plate, and a portion through which the shaft 1 passes is provided with an opening 4a. Although it may be formed so as to cover only the elliptical end, if the shaft 1 is held by the opening 4a, the grip 3 is held with tension. In order to make it easy to attach or detach the protective cap 4 alone, the protective cap 4 may be cut and fixed with screws or the like.

[0023] The grip according to the invention of claim 2 is not different from the grip 3 described above, and the description thereof is omitted.

Brief Description of Drawings

FIG. 1 is a plan view showing a putter club according to an embodiment of the present invention.

FIG. 2 is a side view of the grip portion.

FIG. 3 is a cross-sectional view of FIG.

4 is a cross-sectional view taken along line AA in FIG.

FIG. 5 is a cross-sectional view of the grip.

FIG. 6 is a perspective view of the protective cap for the grip.

FIG. 7 is a perspective view showing the use state of the putter club.

FIG. 8 is a perspective view showing a usage state of a conventional very thick putter club.

Explanation of symbols

[0025] 1 shaft

2 Club head

3 Grip

3a Top view

3b bottom

3c Shaft mating hole

3d grip end e Grip front end g Rib

cap

0 Shaft

1 grip

S Shaft axis G Grip axis H Grip top line

Claims

The scope of the claims

[1] In a butterfly club with an extremely thick grip attached to the rear end of the shaft with the club head fixed at the tip, the grip has a maximum cross-sectional dimension of 30 to 50 mm so that both hands can be held together. Patter characterized by having an elliptical columnar shape and being attached to the shaft so that the upper surface of the grip is inclined forward 7 plus or minus 4 degrees with respect to the axis of the shaft when held with a putter club. club.

[2] Replacement grip attached to the rear end side of the shaft of the NOTER club, which has a substantially elliptical column shape with a maximum cross-sectional dimension of 30 to 50 mm, and has a shaft fitting hole into which the shaft is inserted. A grip for a putter club, wherein the upper surface of the grip is inclined by 7 plus or minus 4 degrees with respect to the axis of the shaft.

[3] The butterfly club according to claim 1 or the grip for a putter club according to claim 2, wherein a protective cap is provided at a front end portion of the grip.