JPS5912914Y2 - iron club set - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improved iron club set.

In conventional iron club sets, the back design of each club's head is the same, and when hitting each club, long irons, which have characteristics such as a long club length and a small loft angle, are affected by centrifugal force. , at the time of impact, the ball hitting surface of the head enters to the right of the desired target flight line direction of the ball, pushing the ball to the right,
Generally speaking, short irons, which have characteristics such as a short club length and a large loft angle, have the disadvantage that the head enters the club facing to the left, causing the ball to be hooked to the left.

In recent years, in order to solve this drawback, the back design of long irons has been designed to have a convex part near the toe,
Alternatively, by providing a concave part near the heel, a large amount of weight is distributed to the toe part, preventing the head from turning to the right at impact, and as the iron becomes shorter, the convex part is gradually placed closer to the heel. A method has been proposed in which a concave portion is provided at the toe to distribute a large amount of weight to the heel and prevent the head from turning to the left at the time of impact.

However, with this method, the sweet spot is extremely small, and while the ball hit at the sweet spot will have maximum flight distance and direction, the ball hit outside the sweet spot will have a large flight distance. This has the drawback of extremely poor directionality, making it difficult for ordinary golfers to stabilize the directionality of the ball.

In view of the above points, the present invention has a simple structure that increases the contact point between the ball and the head so that the head is at an appropriate inclination with respect to the desired direction of flight of the boat at the time of impact. To provide an iron club set that allows easy and accurate control of the flight direction of the iron club.

Preferred embodiments of the present invention will be described below based on the drawings.

In the first embodiment shown in FIGS. 1 to 4, a concave portion 4 is formed over a wide area with a frame portion 8 remaining around a back design portion 3 behind a ball-striking surface 2 of an iron head 1, and a concave portion 4 is formed over a wide area.
A rib-shaped weight portion 5 that also serves as reinforcement is formed in the recess 4 from the blade portion 9 to the sole portion 10, and this rib-shaped weight portion 5 is formed closer to the toe 6 in the long iron 1a, and is formed closer to the toe 6 in the middle iron 1b. The iron is gradually formed closer to the heel 7 as the iron becomes shorter.

Therefore, by providing the recess 4 over a wide range, it is possible to increase the sweet spora I in the Ironhead River of each count, and by forming the rib-shaped weight part 5 in the recess 4 as described above, this weight part 5 By gradually providing the iron head from the toe 6 to the heel 7 from the long iron 1a to the short iron 1C, the influence of centrifugal force on the iron head during swing is reduced, regardless of the structural characteristics of the iron head 1 of each number. As a result, the contact point between the ball and the head becomes wider, allowing the head to be held at an appropriate inclination relative to the desired direction of ball flight at the time of impact with each number of golf club, making it easier for golfers to adjust the direction of flight of the ball. And it can be controlled accurately.

In the second embodiment shown in FIGS. 5 to 8, a recess 4 is provided in the back design section 3, and a recess 4 is formed at the bottom of the recess 4 apart from the frame 8 of the recess 4, as in the first embodiment. An island-shaped weight part 5 is formed, and this island-shaped weight part 5 is formed closer to the toe 6 in the long iron 1a, and gradually becomes closer to the heel 7 as the middle iron 1b and short iron 1C are developed.
Since the second embodiment is formed closer to the first embodiment, the operation and effect are similar to those of the first embodiment described above.

Since the present invention is constructed as described above, the contact point between the ball and the head can be maintained at an appropriate inclination for the desired ball flight direction at the time of impact with a simple construction, compared to conventional iron heads. It is possible to provide an iron club set which is wide and allows easy and accurate control of the flight direction of the ball no matter which iron club number is used.

[Brief explanation of the drawing]

1 is a perspective view of the first embodiment, FIG. 2 is a rear view of the long iron according to the first embodiment, FIG. 3 is a rear view of the middle iron and iron according to the first embodiment, and FIG. 1 is a rear view of the short iron according to the first embodiment, FIG. 5 is a perspective view of the second embodiment, FIG. 6 is a rear view of the long iron according to the second embodiment, and FIG. FIG. 2 is a rear view of the middle iron according to the second embodiment, and FIG. 8 is a rear view of the short iron according to the second embodiment. DESCRIPTION OF SYMBOLS 1... Iron head, 3... Back design part, 4... Concave part, 5... Weight part, 6... Item, 7. ...heel, 1a
...Long iron, 1C...Short iron.

Claims (1)

[Scope of utility model registration request] 1. A concave portion 4 is provided over a wide range in the back design portion 3 of each iron head 1, and a convex weight portion 5 is formed within the concave portion 4, and this weight portion 5 is gradually adjusted from the long irons 1a to the short irons 1C. This iron club set is characterized by the heel being set from 6 to 7. 3. The weight part 5 is attached to the blade part 9 of the iron head 1.
The iron club set according to claim 1, which is formed in a rib shape from the to the sole portion 10. 3. The iron club set according to claim 1, wherein the weight part 5 is formed apart from the frame body 8 surrounding the recessed part 4.