JP2816931B2 - Wood golf club head - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wood golf club head, and more particularly to a wood golf club (including a driver and a fairway wood) for lowering the center of gravity of a club head body and for providing a sweet spot (club head). And a wood golf club head in which the overall shape of the club head body is improved so that a perpendicular line from the position of the center of gravity toward the face surface to the face surface is located at the center of the face surface.

[0002]

2. Description of the Related Art Conventionally, in the case of a wood golf club head, especially a driver (# 1), the shape of a club head body 1 is, for example, as shown in FIG. 4, and the position of the ridge line X provided between the crown portion 2 and the side portion 4 is generally provided at half or more of the club head height (H).

It is said that the above-mentioned conventional wood golf club heads are easier to raise the golf ball as the center of gravity is lowered, and that the golf ball is easier to hit as a club head. However, in the club head body 1 as described above, the position of the ridge line X is set to 1 / H of the club head height (H).
Since there are two or more, there is a problem that the center of gravity of the club head is easily raised to a high center of gravity, so that it is difficult to raise the ball high when hitting, and it is difficult to swing as a club head.

Therefore, conventionally, in order to lower the center of gravity of the club head body 1, a weight body is buried inside the club head body 1 or a weight body is attached to the sole plate 3 to control the position of the center of gravity. But
Due to the partial weight adjustment of the club head body 1, the center of gravity of the club head body 1 cannot be reduced uniformly,
There is a problem that the club head weight becomes uneven and it is difficult to swing.

[0005] In the case of a wood golf club head having a high center of gravity, the sweet spot is also located at a high position on the face, and the meat spot (the point at which the ball is hit) on the face which actually hits the golf ball is shifted. There is a problem that it is difficult to hit the ball at a point where the sweet spot and the meat spot coincide with each other so that the flight distance of the golf ball can be maximized.

[0006]

Accordingly, in order to solve the above-mentioned problems, for example, as disclosed in a microfilm issued by the Patent Office for an application related to Japanese Utility Model Application Laid-Open No. 57-157374. There has been proposed a golf wood golf club head formed such that a ridge formed by a peripheral rising surface other than the face surface of the club head body and an upper surface is located below an intermediate portion in the vertical thickness direction of the head body. I have.

However, in the case of a wood golf club head as described above, it is possible to reduce the center of gravity of the head main body, but all the ridges formed by the peripheral rising surface and the upper side surface are formed by the head main body. It is located below the middle in the vertical thickness direction and is located in the same horizontal plane, so-called turtle-like shape, so the sweet spot of the head body by changing the thickness etc. without changing the shape Is difficult to locate at the center of the face surface. That is, when hitting with a wood golf club head, it is desirable that the hit point on the face surface hits at the center of the face surface, which gives the golfer a sense of security and at that time, the maximum flight distance is obtained. Although the is, when the click <br/> club head as described above, even if it is possible to lower the center of gravity of all the ridge line is positioned below the vertical thickness direction intermediate of the head main body, moreover the same horizontal plane Adjust the center of gravity because it is located inside
Is difficult, therefore, not necessarily can and child to position the sweet spot on the face center, golfer was the Word cormorant problem and it is difficult to a swing that was relieved.

Further, in the above-described club head, the neck portion is reduced to a minimum necessary shape in order to further lower the center of gravity of the head body, and the thickness is small. Since the thickness of the connecting portion between the main body and the neck portion is extremely changed, there is a problem that vibration is transmitted to the shaft at the time of hitting with the head main body and the feeling characteristics at the time of hitting the ball are degraded.

The present invention has been devised in view of such a conventional problem. In particular, by setting the ridge position of the club head body at an optimum position and improving the overall shape of the head body, the weight of the club head is particularly reduced. The center of gravity of the club head body can be lowered without using the body, and a sweet spot is located near the face center to give the golfer a sense of security at the time of hitting, the maximum flight distance and accurate hitting It is an object of the present invention to provide a wood golf club head that can be obtained.

[0010]

According to the present invention, in order to achieve the above object, a heel is provided between a crown portion and a side portion of a club head body from a toe (P1) side of the club head body via a back (P3). (P2) the ridgeline continuously provided on the side, when the club head height ridge portion of the 1 / 4-1 / 2 of the height region of (H), the ridgeline total length (L) was 100%, the The gist is that it is set in the range of 60% to 90%.

When the toe (P1) side of the club head body is the starting point (0) of the ridge and the heel (P2) side is the ending point (100) of the ridge, the height of the club head is 1 / H.
The gist is that the ridge portion in the height region exceeding 2 is in the ridge region of 80 to 100 on the heel (P2) side of the club head body and occupies 5 to 20% of the entire ridge line.

When the toe (P1) side of the club head body is the starting point (0) of the ridge and the heel (P2) side is the ending point (100) of the ridge, the height of the club head is 1 / H.
The gist is that the ridge line portion in the height region of less than 4 is in the region of 40 to 80 on the back side of the club head body and occupies 5 to 35% of the entire ridge line. Further, the toe (P1) side of the club head body is set as the starting point (0) of the ridge, and the heel (P2) side is set as the end point (100) of the ridge.
In this case, the ridge portion in the height region exceeding 1/2 of the club head height (H) is in the ridge region of 80 to 100 on the heel (P2) side of the club head body, and 5% of the entire ridge line. Occupies ~ 20%, 1 of club head height (H)
The gist is that the ridge line portion in the height region of less than / 4 is in the region of 40 to 80 on the back side of the club head body and occupies 5 to 35% of the entire ridge line.

[0013]

According to the present invention, the club head body is reduced in center of gravity by the shape effect by setting the position of the ridge line at the optimum position and improving the overall shape of the head body. In addition, a sweet spot can be provided at the face center, giving the golfer a sense of security when hitting a ball, and obtaining a maximum flight distance and accurate hitting.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The same components as those of the conventional example are denoted by the same reference numerals, and description thereof will be omitted. FIG. 1 shows a wood golf club head embodying the present invention, particularly a driver (#
1) is a front view of the club head main body 1, FIG. 2 is a side view taken along the line AA of FIG. 1, and FIG. 3 is a side view taken along the line BB of FIG.
2 is a crown portion of the club head body 1, 3 is a sole plate, 4 is a side portion of the club head body 1, and between the crown portion 2 and the side portion 4 of the club head body 1 is a club head body 1 A ridge line X is formed continuously from the toe (P1) side to the heel (P2) side via the back (P3) side. Reference numeral 5 denotes a face surface of the club head body 1, 6 denotes a score line formed on the face surface 5, and 7 denotes a hosel portion.

The position of the ridge line X is provided in a range of 1/4 to 1/2 of the club head height (H), and a height region of 1/4 to 1/2 of the club head height (H) is provided. 4 (plan view of FIG. 1) and FIG. 5 (bottom view of FIG. 1)
As shown in (1), when the total length (L) of the ridge line is 100%, it is set in the range of 60% to 90%. That is, in the club head body 1 according to the present invention, the height of the ridge line X from the sole portion changes vertically from the toe (P1) side to the heel (P2) side via the back (P3) side and becomes continuous. ing. The continuous ridge line portion Xb on the back (P3) side is
As shown in FIG. 6, the club head 1 is provided in a range of less than 1/4 of the height H, and the continuous ridge line portion Xa on the heel (P2) side where the hosel portion 7 exists is 1/1 / H of the height H of the club head 1.
2 and the remaining ridge line portion, that is, the continuous ridge line portion Xc on the toe (P1) side and the continuous ridge line portion Xd between the back (P3) side and the heel (P2) side are connected to the club head 1. It is provided in a range of １ ／ to の of the height H.

The length of the remaining ridge portions Xc and Xd is set to be 60% to 90% of the total length (L) of the ridge.
When the length of the ridgeline portion obtained by adding the ridgeline portion Xc and the ridgeline portion Xd is less than 60%, the sweet spot is positioned at the center of the face surface 5 by controlling the weight ratio (thickness, etc.) of the club head body 1. The lower the center of gravity cannot be sufficiently achieved.

On the other hand, if the length of the ridge portion exceeds 90%, the center of gravity becomes too low, so that the sweet spot is located below the face surface 5. In the embodiment of the present invention, the ridge line X formed on the club head main body 1 as described above is formed with the ridge line portion Xb of less than 1/4 of the height H of the club head 1 and the height H of the club head main body 1. 1/2
And the height H of the club head 1
And ridge lines Xc and Xd in the range of ４ to 、, each of which is distributed and arranged on the back (P3) side, the heel (P2) side, the toe (P1) side and the like as described above. Therefore, the club head body 1 in the width direction from the heel (P2) side to the toe (P1) side of the club head body 1
It is easy to control the weight ratio of the club head 1
Can be arranged at the center in the width direction.

The height H of the club head body 1 is 1 / H.
The ridge portion that becomes 4 to 1/2 the height is 6 of the total ridge line (L).
0% to 90%, 40% of the total length of the ridge line from the toe (P1) side
８０80% area, ie club head back (P3)
Since the low ridge of 1/4 of the club head is arranged in the area corresponding to the side, the adjustment of the weight ratio in the height direction of the club head 1 becomes easy and the club head 1 is drawn from the center of gravity to the face surface 5. A sweet spot defined as an intersection between a perpendicular and the face can be arranged at the center of the face surface 5.

As a result, the sweet spot can be positioned at the center of the face surface 5 while lowering the center of gravity of the club head main body 1, and the sweet spot is used as a meet spot to achieve the directional stability and maximum Can be obtained. In addition, since the center of gravity of the club head main body 1 is reduced only by adjusting the height of the ridge line X, the center of gravity can be reduced without using a weight body. Therefore, it is possible to prevent the weight balance of the club head from becoming uneven, and to easily swing the club head 1 out.

When the position of the ridge line X is not more than 1/4 of the club head height (H), the sole plate 3 of the club head body 1 is slid on the ground (so-called duffling occurs), and the club head is easily damaged. It becomes difficult to swing the club head body 1
It is difficult to extend the flight distance, and if the height is more than 1/2 of the club head height (H), the center of gravity becomes high, which is the same as the conventional product. Therefore, the range of 1/4 to 1/2 is preferable. .

4 (the plan view of FIG. 1) and FIG. 5 (the bottom view of FIG. 1), the toe (P
When the 1) side is the starting point (0) of the ridge and the heel (P2) side is the ending point (100) of the ridge, the club head height (H)
The ridge line portion Xa (see FIG. 2) in a height region exceeding half of the height of the club head main body 1 on the heel (P2) side
In the region of ~ 100 and 5 ~ 20 of the total length of the ridgeline (L)
Account for the percentage. By increasing the thickness of the rising portion of the hosel portion 7, structural reinforcement of the club head main body 1 and a good shot feeling (feel at the time of hitting) can be secured.

That is, the club head body 1 and the hosel portion 7
By increasing the wall thickness at the connection portion with the main body, the structural reinforcement of the club head main body 1 can be achieved,
The impact vibration at the time of hitting the ball is not directly transmitted to the shaft side. Further, the toe (P1) side of the club head body 1 is set as the starting point (0) of the ridge line, and the heel (P
2) When the side is defined as the end point (100) of the ridge line, the ridge line portion in a height area of less than 1/4 of the club head height (H) is:
It is formed in a region of 40 to 80 on the heel (P2) side of the club head body 1 and occupies 5 to 35% of the entire ridgeline (L).

Although this does not relate to the entire wood golf club head, it is specified to facilitate fine adjustment of the position of the center of gravity of the club head body 1. Further, the toe (P1) side of the club head body 1 is set as the starting point (0) of the ridge, and the heel (P2) side is set as the end point (100) of the ridge.
, The ridge line portion Xa in the height region exceeding half of the club head height (H) is in the region of 80 to 100 on the heel (P2) side of the club head main body 1, and the ridge line total length ( Ridge portion Xb occupying an area of 5 to 20% of L) and having a height area of less than 1/4 of club head height (H)
Are 40 to 8 on the heel (P2) side of the club head body 1.
0 and occupy 5 to 35% of the entire ridge line.

This is also specified similarly to the above to facilitate fine adjustment of the position of the center of gravity of the club head body 1. As described above, according to the present invention, the ridgeline position is set to an optimum position, and the overall shape of the head body is improved, thereby lowering the center of gravity of the club head body by the shape effect, and also achieving a sweet spot at the face center. Can be provided, giving the golfer a sense of security at the time of hitting the ball, and obtaining a maximum flight distance and an accurate hitting ball.

In the above embodiment, among the wood golf club heads, particularly the driver (# 1) has been described, but it is of course possible to apply the invention to a fair wood or the like.

[0026]

According to the present invention, as described above, between the crown portion and the side portion of the club head body, the club head body is continuous from the toe (P1) side to the heel (P2) side via the back (P3). Ridge line to be provided , and the ridge line portion in the height region of 1/4 to 1/2 of the club head height (H) is
As it is set within the range of 60% to 90% of the total length of the ridge line, it is possible to lower the center of gravity of the club head body without using a heavy body as before, and to optimize the vertical position and area of the ridge line By setting it to a suitable position, the sweet spot can be located near the center of the face of the club head body, making it easier to hit the wood golf club head and giving the golfer a sense of security when hitting the ball The effect is that the maximum flight distance and accurate hit ball can be obtained. Also, by changing the overall shape of the club head body, the center of gravity of the club head body can be lowered, so that the center of gravity can be adjusted in other parts, and the degree of freedom in designing the club head body is also expanded. There is an effect that can be done.

Also, by changing the overall shape of the club head main body, the center of gravity of the club head main body can be lowered, so that the center of gravity can be adjusted in other portions, and the design of the club head main body can be freely performed. There is an effect that the degree can be expanded.

[Brief description of the drawings]

FIG. 1 is a front view of a wood golf club head embodying the present invention, particularly a club head body of a driver (# 1).

FIG. 2 is a side view taken along the line AA of FIG. 1;

FIG. 3 is a side view taken along the arrow BB in FIG. 1;

FIG. 4 is a plan view of FIG. 1;

FIG. 5 is a bottom view of FIG. 1;

FIG. 6 is a rear view of the club head main body.

FIG. 7 is a side view of a conventional wood golf club head.

[Explanation of symbols]

Reference Signs List 1 club head body 2 crown part 3 sole plate 4 side part 5 face surface 6 score line 7 hosel part X ridge line

Claims (4)

(57) [Claims] Between 1. A crown of the club head body and the side portion is provided with a ridge which is continuous from toe (P1) side of the club head body via the back (P3) heel (P2) side, clubs head The ridge portion in the height region of 〜 to の of the height (H) is set in a range of 60% to 90% of the ridge length (L) as 100%. Wood golf club head. 2. When the toe (P1) side of the club head body is set as the starting point ( 0 ) of the ridge and the heel (P2) side is set as the end point ( 100 ) of the ridge, 1/2 of the club head height (H) is set.
Is located in the ridge region of 80 to 100 on the heel (P2) side of the club head body,
And occupying 5 to 20% of the total length of the ridge line.
A wood golf club head according to item 1. 3. When the toe (P1) side of the club head body is the starting point ( 0 ) of the ridge and the heel (P2) side is the ending point ( 100 ) of the ridge, the club head height (H) is 1/4.
2. The wood golf club head according to claim 1, wherein the ridge portion in the height region of less than 40 to 80 ridge regions on the back side of the club head body and occupies 5 to 35% of the entire ridge line. . 4. When the toe (P1) side of the club head body is the starting point (0) of the ridge line and the heel (P2) side is the ending point ( 100 ) of the ridge line, １ ／ of the club head height (H).
Is located in the ridge region of 80 to 100 on the heel (P2) side of the club head body,
And a ridge line portion occupying 5 to 20% of the entire length of the ridge line and having a height region of less than 1/4 of the club head height (H) is in a region of 40 to 80 on the back side of the club head body, and the ridge line The wood golf club head according to claim 1, which accounts for 5-35% of the whole.