JP2000354644A - Club head and golf club provided with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a club head which enables a stable shot by suppressing erroneous shots at various approach shots and a wedge club provided with the club head. SOLUTION: A sole bounce angle of a center portion 23 is made larger than that of a side portion 21 of a toe, while the sole width of the center portion 23 is made narrower than that of the portion 21 in a swing direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a sand wedge,
The present invention relates to a pitching wedge, an approach wedge, and the like, a club head such as an iron, and a golf club including the same.

[0002]

FIG. 6 schematically shows a conventional club head (iron system including a sand wedge). As shown in the figure, in this type of iron-based club head 61, a predetermined bounce angle θ is provided on the sole 62 even if the club head 61 is large or small, so that the club head 61 does not bite into sand or grass, and The sole 61 is formed so as to slide on grass or the like as appropriate. The bounce angle θ is substantially uniform from the heel side of the sole 62 toward the toe side, and the sole width W is formed slightly wider on the toe side than on the heel side.

[0003] For example, in a bunker shot using a sand wedge, a ball is hit with sand, so that in order to perform a stable shot, it is necessary for the club head to appropriately dive into the sand and slide as it is to the ball position. Become. For this reason, the bounce angle and the sole width of the sand wedge are formed at delicate angles and width dimensions that do not excessively penetrate the sand and are slippery. In addition, even for seat irons, the sole width is set in consideration of slipperiness.

[0004]

When it is necessary to go over a high obstacle (such as a bunker with a high jaw) in a bunker shot, the shot is performed with the club head open faced to increase the loft. In an open face shot, the apparent bounce angle increases as the loft increases, and the bounce height increases accordingly. When the bun height is high, the repulsive force from the sand increases, making it difficult to properly sink the club head into the sand and make it difficult to slide the sole into the sand. In particular,
When you make a duffy shot, the slight mess becomes a missed shot. That is, not only on the sand (bunker shot) and on the turf (lob shot), but when the shot is performed with an open face, the position of the leading edge inevitably increases, and a miss shot is easily induced.

On the other hand, in a running approach in which the ball is hit with a square face, the sole comes into contact with the ground from the center thereof, so that the club head receives a repulsive force from the ground surface (turf) before slipping, and the club head delicately jumps, causing a slight duff. In the case of a shot, it becomes easy to induce a miss shot. That is,
When the sole width is reduced, the jump is reduced, but the slip is deteriorated. Conversely, when the sole width is increased, the slip is improved but the jump is increased.

SUMMARY OF THE INVENTION An object of the present invention is to provide a club head which enables a stable shot by suppressing a miss shot in various approach shots, and a golf club having the same.

[0007]

According to the club head of the present invention, the sole bun angle of the center portion is formed larger than the sole bun angle of the toe side portion, and the sole width of the toe side portion before and after the swing direction is increased. The center portion has a narrow sole width.

By the way, in the square face, the center portion at the rear end of the sole is a ground point, and in the open face, the ground point moves to the toe side. According to the above configuration, the solebance angle is small and the sole width is wide at the toe side portion of the sole, and the solebanse angle is large and the sole width is narrow at the center portion. Therefore, the height of the solevans hardly changes between the case where the ground contact point is at the center portion and the case where the contact point is closer to the toe side. In other words, the apparent height of the soleance is almost the same between the square face and the open face. For this reason, the position of the leading edge does not change when shot with a square face or an open face, and the repulsive force against sand and grass, moderate diving in sand, and the state of sliding against grass are the same. Become. In addition, since the sole width is formed wide at the toe side, the area of the toe side is relatively large, and in various approach shots, the slip and swing-out properties of the sole in sand and grass are good. Become. On the other hand, since the sole width is formed narrow in the center part, the area of the center part is relatively small, and in a running approach (square face), etc., the repulsive force from the turf against the sole becomes small, and the subtle bouncing of the sole occurs. Can be suppressed as much as possible. That is, in the shot with the square face, since the center portion serving as the ground contact portion is narrow, the repulsive force from the ground surface is reduced, and the bouncing of the golf club is suppressed.

[0009] In this case, it is preferable that the rear end of the sole from the center portion to the toe side portion be curved forward.

[0010] According to this configuration, it is possible to provide continuity in the change in the solebance angle from the center portion of the sole to the toe side portion, and to provide continuity in the change in the sole width.

In these cases, it is preferable that the sole surface of the center portion be curved with a small curvature in the width direction with respect to the sole surface of the toe side portion.

[0012] According to this configuration, the angle between the sole surface and the ground surface is reduced at the ground contact point in the open face, so that the sole slides even better.

In these cases, the sole heel angle of the heel side portion is formed to be larger than the sole ban angle of the toe side portion and smaller than the sole ban angle of the center portion, and the sole width of the heel side portion is reduced to the toe side. Preferably, it is formed narrower than the sole width of the portion and wider than the sole width of the center portion.

According to this configuration, the heel-side portion of the sole is in an intermediate state between the toe-side portion and the center portion at the sole bunker angle and the sole width.
The balance of the sole, such as weight and slipperiness, is not lost. That is, there is no trouble such as the club head rotating at the moment of impact. In addition, the heel side portion, together with the toe side portion, improves the sliding property against sand and grass.

Another club head according to the present invention is characterized in that the sole width of the center portion of the sole before and after the swing direction is smaller than the sole width of the toe side portion and the heel side portion.

[0016] Still another club head of the present invention is:
When viewed from the sole front, the center portion of the sole is substantially concave in a mountain shape.

According to these configurations, since the area of the center portion of the sole is reduced, when the ball is hit with a square face, the repulsive force of the sole against the turf is reduced, and delicate bouncing of the sole is minimized. can do. In addition, the toe-side portion and the heel-side portion located on both sides of the center portion can have a sufficient sole width, so that the sole can slide well after touching the ground. Note that, in the above configuration, as compared with a general club head, the area distribution is largely allocated to the toe side portion and the heel side portion without changing the entire area of the sole.

In these cases, it is preferable that the cavity back connected to the rear of the sole is formed flat.

According to this configuration, the cavity back is
By using a so-called flat cavity back,
The balance between the toe side and the heel side is improved, and the controllability of the ball can be improved.

A golf club according to the present invention includes the club head according to any one of claims 1 to 7.

According to this structure, since the club head is provided to prevent the club head from bouncing by the center portion of the sole, to improve the slipperiness by the toe portion, and to improve the balance by the heel portion, various approaches are provided. Shots can be stabilized individually, and miss shots based on shots that tend to be stiff can be suppressed.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a club head according to an embodiment of the present invention will be described with reference to the attached drawings, taking a sand wedge as an example. FIG. 1 is an overall view of the sand wedge,
As shown in FIG. 1, the sand wedge 1 includes a club head 2, a hosel 3, a shaft 4, and an end grip 5.

FIG. 2A is a perspective view of the club head 2 as viewed from above, FIG. 2B is a view of the club head 2 as viewed from the front of the sole, and FIG. It is the perspective view seen from the side. As shown in these figures, the club head 2 includes an upper face 11, a lower front sole 12, a base heel 13, a distal toe 14, a rear cavity 15, and a neck 16. The main body portion 10 of the club head 2 serving as 11 and the cavity 15 is formed in a thick plate shape. That is,
The back side of the club head 2 is a so-called flat cavity back.

The face 11 has a toe 14 side and a heel 1
A plurality of score lines 19 are formed in parallel with the three sides from the top edge 17 to the leading edge 18. Further, the sole 12 is provided at a peripheral portion of the main body portion 10 of the club head 2 so as to protrude substantially at the front half thereof. When viewed from the front, the sole 12 is formed such that the center portion 23 is depressed compared to the toe side portion 21 and the heel side portion 22 (see FIG. 2B).

As shown in FIGS. 4 and 5, the sole 12 of the club head 2 of the embodiment differs in the bounce angle θ and the sole width W between the toe side portion 21, the center portion 23 and the heel side portion 22. I have. That is, the bounce angle θS of the center portion 23 is the largest,
Is the next largest, and the bounce angle .theta.T of the toe side portion 21 is the smallest. In addition, sole width W
The sole width WT of the toe side portion 21 is the widest, the bounce angle WH of the heel side portion 22 is the next largest, and the center portion 2
The sole width WS of No. 3 is formed to be the narrowest.

The bounce angle θ and the sole width W change continuously between the toe-side portion 21, the center portion 23 and the heel-side portion 22. Therefore, as a result, when the sole 12 is viewed from the front as described above,
The center portion 23 is formed in a shape depressed in a mountain shape so that the center portion 23 is curved to the front side as compared with the toe side portion 21 and the heel side portion 22. Also, the bounce height H is determined by the toe side portion 21.
And the center portion 23 and the heel side portion 22 are formed at substantially the same height. When the club head 2 is shot with an open face, the loft is large, but the toe side portion 21 is rounded as described later, and even when the ground contact point moves backward, the bounce height H is increased. ,
There is almost no change (indicated by a virtual line in FIG. 5A).

The sole surface is in the width direction (front-back direction).
, But in this case, the toe side portion 21,
The curvature increases in the order of the center portion 23 and the heel side portion 22. That is, the sole surface gradually becomes rounder as it moves from the heel side portion 22 to the toe side portion 21.

More specifically, as shown in FIG. 2, the club head 2 according to the present embodiment has the end position (AA) of the score line 19 on the toe 14 representing the toe portion 21 as shown in FIG. Line), the end position (CC line) of the score line 19 on the heel 13 side representing the heel side portion 22, and the intermediate position (BB) representing the center portion 23.
In the toe side portion 21, the bounce angle θ
T = 15 ° and sole width WT = 23.0 mm, in the heel side portion 22, the bounce angle θH = 16 ° and the sole width WH = 20.0 mm, and in the center portion 23, the bounce angle θS = 25 ° and the sole width. WS = 12.6 mm. The loft is formed at 56 ° and the lie angle is formed at 63 °.

In such a configuration, the bounce height H of the sole 12 is substantially the same at the toe side portion 21, the center portion 23, and the heel side portion 22. Even if the ball is hit in any form of the face, the position of the leading edge 18 does not change, and a stable shot can be obtained under the same conditions even if the loft is changed in the shot. This not only reduces the mistakes of advanced shots (technical shots such as open face bunker shots and lob shots), but also reduces the number of missed shots if a novice shot with an open face. can do.

Further, since the sole width WS of the center portion 23 is small, the area of the center portion 23 is inevitably reduced, and the jumping of the club head 2 is suppressed. Further, the sole widths WT and WH of the toe side portion 21 and the heel portion 22 are provided.
, The sole 12 slides well on grass or the like. In particular, the sole surface of the toe side portion 21 is sufficiently rounded and wide, so that the slipperiness can be remarkably improved. Therefore, even when the shot is slightly duffy, the sole 12 slides well on the grass, so that the miss shot can be reduced as in the case of the shot on the mat in the practice area.

In the above embodiment, a sand wedge has been described as an example. However, it goes without saying that the present invention can be applied to a club head such as a pitching wedge, an approach wedge, and an iron. That is, the present invention is applicable to iron-based golf clubs other than wood clubs and putter clubs.

[0032]

As described above, according to the golf club of the present invention, the position of the leading edge does not change even when shot with a square face or shot with an open face, so that a stable shot can be stabilized. Can be enhanced. In addition, since the jump of the golf club is suppressed and the sliding is improved, the number of missed shots can be reduced as much as possible with respect to shots that tend to be duffy.

Further, according to another golf club of the present invention, the sole can be prevented from delicate bouncing and the sole can be slid smoothly. On the other hand, miss shots can be reduced as much as possible.

[Brief description of the drawings]

FIG. 1 is an overall view of a golf club (sand wedge) according to an embodiment of the present invention.

FIG. 2 is a diagram of the golf club according to the embodiment as viewed from above and from the front of the sole.

FIG. 3 is an overall perspective view of the golf club according to the embodiment as viewed from below.

FIG. 4 is a side view showing angles, widths, and the like of each part of the golf club according to the embodiment.

FIG. 5 is a sectional view of a toe portion, a center portion, and a heel portion of the sole of the golf club according to the embodiment.

FIG. 6 is a structural view of a conventional iron club head.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sand wedge 2 Club head 12 Sole 15 Cavity 18 Leading edge 21 Toe side part 22 Heel side part 23 Center part θ Vance angle W Sole width

Claims (8)

[Claims] 1. A sole part angle of a center part is formed larger than a sole part angle of a toe side part, and a sole width of the center part is formed narrower than a sole width before and after the toe side part in a swing direction. A club head comprising: 2. The club head according to claim 1, wherein a rear end of the sole from the center portion to the toe-side portion is curved toward the front as viewed from the front of the sole. 3. The club head according to claim 1, wherein a sole surface of the center portion is curved with a small curvature in a width direction with respect to a sole surface of the toe side portion. 4. The sole heel angle of the heel side portion is formed to be larger than the sole ban angle of the toe side portion and smaller than the sole ban angle of the center portion, and the sole width of the heel side portion is 4. The structure according to claim 1, wherein the width is smaller than the sole width of the toe side portion and wider than the sole width of the center portion.
The club head as described in. 5. A club head, wherein a sole width of a center portion of the sole before and after the swing direction is smaller than a sole width of a toe side portion and a heel side portion. 6. A club head according to claim 1, wherein a center portion of the sole is substantially mountain-shaped when viewed from the front of the sole. 7. The club head according to claim 1, wherein the cavity back connected to the rear of the sole is formed flat. 8. A golf club comprising the club head according to claim 1.