JPH0731073U - Golf club set - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide a golf club set capable of exhibiting functions peculiar to a long iron, a middle iron and a short iron. [Constitution] In a golf club set consisting of a long iron, a middle iron and a short iron, a convex front sole portion and a back sole portion are provided on the face side and the back side of the sole portion of the head of each iron, respectively. , The thickness of the front sole part is made smaller as it goes from long irons to middle irons and short irons.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improved golf club set including an iron club.

[0002]

[Prior art]

 Generally, a golf club set consisting of iron clubs consists of 2 to 4 long irons, 5 to 7 middle irons, and 8 to 10 irons and sand wedge short irons. The loft angle is set larger as rises.

[0003] And, as is known as "a long iron that can be easily hit", "a middle iron that makes it easy to fly", and "a short iron that has a sharp edge", a long iron has a function of easily catching a ball and ensuring a flight distance Then, as the count increases from long irons to short irons, various improvements have been made in pursuit of the function of each count so that a smooth, sharp and smooth shot can be achieved.

By the way, as disclosed in Japanese Patent Laid-Open No. 50-91438 and the like, conventionally, in this type of iron club, a convex front sole is provided on each of the face side and the back side of the sole portion. Section and backsole section to reduce the ground contact area of the sole section to reduce head speed decrease and direction variation due to ground (turf) resistance, and the front and back sole sections both front and back of the head. By supporting the device, we are aiming for stability at the time of addressing.

[0005]

[Problems to be solved by the device]

 However, various shapes have been conventionally exemplified for the sole portion of the iron provided with the front sole portion and the back sole portion, but these are all related to the head alone, and the front sole portion and the back sole portion Focusing on the above, the reality is that long irons are not designed to exhibit the unique functions of irons, such as easy swing-out, and middle irons and short irons that facilitate spin.

In iron golf clubs that are often used as a set, the shape of these front and back soles is improved to some extent by maintaining the same design in common. It was supposed to further demonstrate the function of.

The present invention has been devised in view of such a situation, and it is possible to exert a function peculiar to a long iron, a middle iron, and a short iron by improving the sole part while keeping the design common to some extent. The purpose is to provide a golf club set capable of playing.

[0008]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention provides a golf club set consisting of a long iron, a middle iron and a short iron, each of which has a convex shape on the face side and the back side of the head part of each iron. The front sole part and the back sole part are provided, and the wall thickness of the front sole part is made smaller from the long iron to the middle iron and the short iron.

[0009]

[Action]

 According to the present invention, the so-called front sole portion on the face side of the sole portion becomes sharper with respect to the ground as the count increases, together with the fact that the loft angle increases as the count increases.

Therefore, when hitting a ball with each iron club, the long iron has less front bite than the short iron because the front sole portion is thicker, and as a result, the head can be easily swung The ball can be hit, the flight distance increases, and as the count goes up, the front sole part of the head bites into the ground, giving a strong spin to the ball.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view of heads of a 2 iron (long iron), a 5 iron (middle iron), and an 8 iron (short iron) of a golf club set according to an embodiment of the present invention. In these heads 1 to 3, hosel portions 1a to 3a, face portions 1b to 3b, sole portions 1c to 3c, etc. are integrally formed of mild steel, and the loft angle increases as the count increases. It is set to be large.

Further, as shown in FIGS. 1 and 2, front sole portions 1d to 3d are provided on the face side of the sole portions 1c to 3c of the heads 1 to 3 and back portions are provided with the concave portions 1e to 3e interposed therebetween. Backsole portions 1f to 3f are provided on the respective sides so as to project from the heel portion 1g to the toe portion 1h. In the golf club set according to the present embodiment, the depths d ₁ , d ₂ and d ₃ of the recesses 1e to 3e are sequentially deeper (d ₁ <d ₂ <d as the count increases from the long iron to the short iron. ₃ ) In addition, the wall thicknesses of the front sole portions 1d to 3d, that is, the wall thicknesses m ₁ , m ₂ , and m ₃ from the deepest portion of the concave portions 1e to 3e to the tip ends of the sole portions 1c to 3c are sequentially reduced (m ₁ > M ₂ > m ₃ ).

As described above, FIG. 1 shows only the 2nd iron, the 5th iron, and the 8th iron of the golf club set according to the present embodiment, and the heads of other irons not shown. As the number of irons increased from long irons to short irons, the depth of the recesses was gradually increased, and the thickness of the front sole was gradually decreased.

As described above, in this embodiment, convex front sole portions 1d to 3d and back sole portions 1f to 3f are provided on the face side and the back side of the sole portions 1c to 3c of the heads 1 to 3, respectively. At the same time, the wall thicknesses m ₁ , m ₂ and m ₃ of the front sole parts 1d to 3d were reduced as the iron length was changed from long iron to middle iron and short iron, so that the loft angle increased as the iron number increased. As a result, the ground contact area of the front sole parts 1d to 3d decreases with respect to the ground G as the count increases.

Therefore, when the ball is hit with each iron club of the present embodiment, the long iron does not bite into the ground because the front sole portion has a larger thickness than the short iron, and as a result, the head is As it is easy to swing out and can be hit, the flight distance of the ball is extended, and as the count increases, the front sole part of the head bites into the ground, giving a strong spin to the ball.

Therefore, according to the present embodiment, by providing a convex front sole portion and a back sole portion on the sole portion to reduce the ground contact area, it is possible to suppress a reduction in head speed and a variation in direction due to ground resistance. In addition to the same effect as before, such as stability at the time of addressing, the front sole part on the face side easily bites into the ground as the count goes up, so it is possible to get the flight distance of the ball with a long iron, As the iron changes from an iron to a short iron, the front sole part digs into the ground, making it easier to spin the ball and enabling a smoother and sharper shot with more spin than before.

In the above embodiment, the depths d ₁ , d ₂ and d ₃ of the recesses 1e to 3e sandwiched between the front sole portions 1d to 3d and the back sole portions 1f to 3f are changed from long irons to short irons. Although the depth gradually increased as the count increased, it is possible to change only the wall thickness of the front sole part while keeping the depth constant.

[0018]

[Effect of device]

 As described above, according to the present invention, the convex front sole portion and the back sole portion are provided on the sole portion to reduce the ground contact area of the sole portion, thereby reducing the head speed due to the ground resistance. In addition to the same effect as before, such as suppressing direction variation and stabilizing at the time of addressing, as the count increases, the ground contact area of the front sole part decreases further and the front sole part easily bites into the ground, so long With the iron, the distance of the ball can be increased, and as the distance from the middle iron to the short iron is increased, a sharper and smoother shot with more spin than before is possible.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of heads of a 2-iron, 5-iron, and 8-iron of a golf club set according to an embodiment of the present invention.

FIG. 2 is a bottom view of a head of a # 2 iron.

[Explanation of symbols]

 1,2,3 head 1c, 2c, 3c sole part 1d, 2d, 3d front sole part 1f, 2f, 3f back sole part

Claims (1)

[Scope of utility model registration request] 1. In a golf club set comprising a long iron, a middle iron and a short iron, a convex front sole portion and a back sole portion are respectively provided on a face side and a back side of a sole portion of a head of each iron. A golf club set in which the thickness of the front sole portion is reduced as the length is changed from long irons to middle irons and short irons.