JPH081234U - Golf club - Google Patents

Abstract

(57) [Summary] [Purpose] It is an object to provide a golf club capable of preventing miss shots as much as possible. [Structure] When the golf club is gripped with both hands and addressed, the vertical line from the center of the grip edge of the golf club to the ground is a, and the length from the grip end of the golf club to the club heel minus about 10 cm Where c is the angle α corresponding to the approximate value of a / c = sin α, the angle θ obtained by subtracting 180 ° from the angle α is manufactured as the heel root opening angle of the club head.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a new and useful golf club.

[0002]

[Prior art]

 Golf clubs include woods, irons, etc., and the club shaft becomes shorter as the club face and the perpendicular become deeper. (43 inches to 35 inches) However, the opening angle (the angle between the shaft and the sole) of the heel portion of the club is set to about 120 to 125 degrees without taking the length of the shaft into consideration. It seems that

[0003]

[Problems to be solved by the device]

 However, since each person has different heights and hand lengths, the correct time to take a stance by holding the above club in the hand, and when selecting a club simply based on the length of the club, correct when addressing. It is not possible to set, or there is a slight gap between the surface and the straw, which causes a miss shot.

[0004]

[Means for Solving the Problems]

 The present invention is intended to solve the above problems, and is characterized in that the perpendicular line from the center of the grip edge of the golf club to the ground when the golf club is held with both hands and addressed is a. When c is the length from the grip end of the club to the heel of the club minus about 10 cm, the angle α corresponding to the approximate value of a / c = sinα is subtracted from 180 ° and the angle θ is subtracted from the club head. The golf club is manufactured with an opening angle of the root of the golf club.

[0005]

[Action]

 The shaft length of wood and iron and the opening angle of the necking part between the shaft and head were designed and manufactured with the numerical values calculated correctly by each person while holding the club and addressing it to the ground. Therefore, it is possible to prevent a miss shot from occurring as much as possible.

[0006]

【Example】

 The drawings illustrate the present invention. FIG. 1 shows a driver and FIG. 2 shows an iron in an addressing state. In the present invention, as shown in the drawings, the vertical line from the center of both hands H when the player holds the golf club 1 with both hands to the ground is a, and the length from the grip end of the golf club to the club heel is 1 to 10 cm. The angle α corresponding to the approximate value calculated by the mathematical expression a / c = sin α is obtained from the trigonometric function table with the subtracted length c, and then the angle α is obtained by subtracting the angle α from 180 degrees.

For example, if a = 74 cm and c = 102 cm, then 74/102 = 0. At 725, since α≈46 ° from the triangular function table, θ≈134 °. The above is an example of a driver. Next, as an example of iron No. 5, if a = 70 cm 2 and c = 87 cm, 70/87 = 0.805, which is α≈54 ° from the trigonometric table. Therefore, θ≈126 °.

According to the present invention, a club having an angle θ calculated as described above, that is, an opening angle θ between the club shaft and the root of the club head is manufactured, and the club is made of wood or iron. When the ball is addressed, the club head and the ground surface are aligned without any gap, so that the ball can be hit correctly.

At this time, the length of the club shaft is optimal in consideration of each element such as the height and arm length of each person, and the weight and taste desired by the person (whether or not the length is desired). Set it to a good one. Note that in the present invention, subtracting about 10 cm from the length l from the grip end to the club heel in calculating c is because the overall size of the grip is imitated by a general person to be about 20 cm. It is calculated as the length which is halved. Therefore, in the case of a large individual difference, it will be changed in accordance with the above purpose.

[0010]

[Effect of device]

 The present invention is configured as described above, and when the club is held and addressed, the club shaft and its head are correctly parallel to the ground surface. It is possible to catch and hit, that is, it is possible to prevent top and duff from the optimization of the impact area as much as possible and to contribute to the improvement of the directionality and flight distance of the ball. It will be a squeak.

[Brief description of drawings]

FIG. 1 is a state diagram in which a driver holds an address and addresses.

FIG. 2 is a state diagram in which an iron is held in a hand and addressed.

[Explanation of symbols]

 1 club θ Heel base opening angle

Claims (1)

[Scope of utility model registration request] 1. A vertical line from the center of the grip edge of the golf club to the ground when the golf club is gripped with both hands and addressed is a, and about 10 cm is subtracted from the length from the grip end of the golf club to the club heel. Length c
The angle α corresponding to the approximate value of a / c = sin α is subtracted from 180 degrees, and the angle θ is manufactured as the heel root opening angle of the club head.