JPS5845730Y2 - iron club club head - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a club head for an iron club.

In general, if you hit with a long iron, the ball tends to slice or fade, and if you hit with a short iron, the ball tends to hook.

In order to correct this tendency, the present invention forms deep pockets on the toe side and heel side that extend almost parallel to the club ace, and these pockets have deep pockets that extend approximately parallel to the ace of the club. The high-density metal weights are distributed so that the weight gradually increases from the heel side (heel side) to the toe side (toe side) or from the toe side to the heel side, and so that the center of gravity of the club head is at its lowest position.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

10 generally shows a club head of an iron club according to the present invention.

12 is a hosel, 14 is a grooved ball hitting surface, 16 and 18
20 represents the toe and heel of the club head, respectively, and 20 represents the sole of the club head.

According to the present invention, there are deep pockets on the toe 16 side and the heel 18 side of the club head 10, respectively, where the bottom on the sole 20 side is closed and the top on the opposite side is open.) 22. 23 is a club. It is formed almost parallel to the face.

These pockets are within the ball striking surface 14 and preferably have a rectangular cross section as best seen in FIGS. 3 and 4.

A reinforcing portion 25 having a ■-shaped cross section is formed at the center of the ball hitting surface 14 between the pockets 22 and 24.

For long irons, use pocket 2 as shown in Figure 2.
At 26 and 24, a predetermined amount of high-density metal weight such as lead is attached to 26 and 24 so that the weight gradually increases from the heel 18 to the toe 16 side.
Distribute as shown in 8.

In the case of short irons, on the contrary, a predetermined amount of high-density metal weight is distributed so that the weight gradually increases from the toe 16 side to the heel 18 side.

The weights of each pocket 22 and 24 are filled with synthetic resins 30 and 32, respectively.

The synthetic resin of each pocket can also be covered with a stainless steel plate or the like.

The club head of the present invention is desirably made of stainless steel or the like by an investment casting method.

Alternatively, after the club head is cast using the pockets 22 and 24 as through holes, the bottom openings of the pockets can be closed with a stainless steel plate or the like.

Furthermore, in the distribution of weights to two pockets, the weight of one pocket can be set to zero.

In the present invention, since pockets are formed on the toe side and the heel side of the club head, a predetermined amount of weight can be distributed in combination with swing weight adjustment.

By distributing the weight between the two pockets of this invention so that the weight gradually increases from the heel side to the toe side of the club head, it can be made suitable for long irons where the most resistance to slice and fade is required. Conversely, if you distribute the weight between the two pockets so that the weight gradually increases from the toe side of the clubhead to the heel side, you can make it suitable for short irons that require accurate play. .

In addition, in this invention, the bottom of the pocket is formed deep enough to reach the sole of the club head, and the bottom of the pocket is filled with a weight such as lead, which has a higher density than the stainless steel of the club head body. The center of gravity of the club head of the invented iron club is lower than that of the conventional iron club.

This is the most effective factor in giving the ball reverse rotation, upwards at the front and downwards at the rear, and therefore the distance traveled by the ball after it falls can be reduced.

Additionally, in general, if the face bends and deforms at impact, the maximum compression of the ball will not occur, but in this invention, the ■-shaped cross section in the center of the ball-striking surface causes the entire ball to bend and deform at impact. It has the strength to resist and can create maximum compression on the ball.

Furthermore, by distributing weight to the heel and toe sides of the club head according to the present invention, the sweet spot has been expanded, and the percentage of balls that can be hit farther and more straight has been greatly increased.

[Brief explanation of the drawing]

1 is a front view of the club head of an iron club according to the present invention, FIG. 2 is a sectional view taken along line II-II in FIG. 3, and FIG. 3 is a plan view of the club head of FIG. 1;
FIG. 4 is a side view thereof. 10... Club head, 16... Toe side, 18... Heel side, 22.24...
・Pocket), 26.28... Weight, 30°32... Synthetic resin.

Claims (4)

[Scope of utility model registration request] (1) On the toe side and heel side of the club head, deep pockets are formed approximately parallel to the club ace, with the bottom on the sole side closed and the top on the opposite side open, and these pockets are , an iron club characterized by being filled with high-density metal weights and then filled with synthetic resin so that the weight is gradually distributed from the heel side to the toe side or from the toe side to the heel side. club head. (2) A club head for an iron club according to claim 1, wherein the pocket is formed within the range of the ball hitting surface of club ace. (3) The club head for an iron club according to claim 1, wherein each of the pockets has a rectangular cross section. (4) A club head for an iron club according to claim 1 or 2, wherein the center portion of the ball hitting surface between the heel side pocket and the toe side pocket has a ■-shaped cross section.