JP2004049802A - Golf club head - Google Patents

Golf club head Download PDF

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Publication number
JP2004049802A
JP2004049802A JP2002215014A JP2002215014A JP2004049802A JP 2004049802 A JP2004049802 A JP 2004049802A JP 2002215014 A JP2002215014 A JP 2002215014A JP 2002215014 A JP2002215014 A JP 2002215014A JP 2004049802 A JP2004049802 A JP 2004049802A
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JP
Japan
Prior art keywords
face
golf club
club head
angle
degrees
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002215014A
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Japanese (ja)
Inventor
Masahide Akiyama
Harunobu Kusumoto
楠本 晴信
秋山 雅英
Original Assignee
Daiwa Seiko Inc
ダイワ精工株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daiwa Seiko Inc, ダイワ精工株式会社 filed Critical Daiwa Seiko Inc
Priority to JP2002215014A priority Critical patent/JP2004049802A/en
Publication of JP2004049802A publication Critical patent/JP2004049802A/en
Application status is Pending legal-status Critical

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Abstract

A large golf club head (with a volume of 320 cc or more) with a face set to a hook direction of 1.5 degrees or more in advance can hit a ball in the usual style without any sense of incongruity. A golf club head having a configuration is provided.
A golf club head according to the present invention is characterized in that, when the volume is set to 320 cc or more and the face angle is set to a hook of 1.5 degrees or more, the score line angle is set to 7 degrees or more.
[Selection] Figure 2

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a golf club head having a volume of 320 cc or more.
[0002]
[Prior art]
Golf club heads are becoming larger in order to increase the moment of inertia and improve the stability in the direction of the hit ball, and in recent golf club heads (especially metal wood), those of more than 320 cc are commonly used. ing. Such a large-sized head, even when the sweet spot is removed and the ball is hit, the head is difficult to shake and the directionality is stable, but the center of gravity distance (lowered from the center of gravity to the shaft axis is reduced) (Distance of perpendicular) becomes longer (34 mm or more).
[0003]
In general, if the center-of-gravity distance is long, a force is required to return the head during the swing, and if the head does not return sufficiently, the ball will hit with the face open, resulting in an increase in the number of hits in the slice direction. End up. For this reason, recently, golf club heads of 320 cc or more, so-called hook-face golf clubs, in which the face is directed in the hook direction, have appeared.
[0004]
[Problems to be solved by the invention]
Such a golf club can hit a ball with a straight face even if the head does not return sufficiently at the time of hitting, and the hit ball does not hit the target direction. Right-handed if you are forced to face the front in order to eliminate the anxiety that you are likely to make a miss shot in the hook direction, or to avoid discomfort when holding it (the face is facing the hook direction when addressing) In this case, the grip position shifts to the left, and it becomes difficult to hit the ball in the style that is usually performed, and there is a problem that the hit ball cannot be hit as intended.
[0005]
In such a golf club having a head with the face directed in the hook direction, when the face angle at which the above-described problem occurs is examined, it is found that the angle is 1.5 degrees (+1.5 degrees) or more in the hook direction. It was found that most golfers feel uncomfortable and hard to hit.
[0006]
Accordingly, the present invention provides a large golf club head (volume of 320 cc or more) with a face set in advance in the hook direction of 1.5 degrees or more, and hits the ball in a style that is usually performed without a sense of incongruity when set up. An object of the present invention is to provide a golf club head having a configuration capable of performing the above.
[0007]
[Means for Solving the Problems]
In the golf club head in which the face is formed in a hook system, the score line that can be visually observed is formed substantially horizontally along the toe-heel direction when addressed with a predetermined lie angle. As a result, the present inventors have found out that by inclining the score line so that the toe side rises to some extent, it is possible to obtain a sensation that the face is directed to the front, and the present invention has been conceived. That is, in order to achieve the above object, the present invention is characterized in that a score line angle is 7 degrees or more in a golf club head having a volume of 320 cc or more and a face angle of 1.5 degrees or more of hooks.
[0008]
In the configuration described above, the face angle is the angle (+) when the orientation of the face 1a is a hook system with respect to the axis X of the shaft 3 mounted on the golf club head 1, as shown in FIG. In the case of a slice system, it is defined by the angle of (−). That is, in the drawing, the face 1a shows a straight face set in a direction orthogonal to the target direction T, and the face 1a ′ set at an angle θ1 is set at a hook system and an angle θ2. The face 1a ″ is a slice system, and the orthogonal directions of the respective faces are T1 and T2 to form a hook face and a slice face. In this case, in the present invention, the golf club head that becomes the hook face 1a ′ when θ1 is 1.5 degrees or more when addressed is targeted.
[0009]
In the above-described configuration, the score line angle is the score line 5 formed on the installation surface P and the face 1a when the golf club is held at a predetermined lie angle with respect to the installation surface P as shown in FIG. The angle between and means θ3. That is, as the score line angle increases, the upward inclination angle increases from the heel side toward the toe side.
[0010]
According to the configuration described above, since the face is set to the hook system, the face surface is slightly inward when addressed. In such a state, if the score line is inclined upward from the heel side to the toe side as a whole, when the address is viewed and the face surface is viewed from above, the face surface appears to be in a square state. Become. In other words, when the face angle is a hook system, the score line is inclined upward from the heel side to the toe side, so that when addressing, the face actually faces the hook direction, but it appears to be A feeling that the direction is facing the front can be obtained.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
As described above, when the face is a hook system, it is possible to obtain a feeling that the face is directed to the front by forming a large score line angle. The angle was determined by evaluation of a large number of subjects.
[0012]
Specifically, 50 senior amateur golfers with handicap of 18 or less were used as subjects, and each person was given a normal address to investigate the appearance of the face. Then, the number of people whose faces seem to be almost straight and the number of people who look like hooks were examined, and when the number of people who looked almost straight exceeded the number of people who seemed to be hooks, it was evaluated as a “score line angle at which an effect can be obtained”. .
[0013]
In addition, the golf club used in the experiment is set to have a shaft length of 45 inches, a lie angle of 58.5 degrees, a head volume of 320 cc, a face of 1.5 degrees of a hook, and, when addressed, the face portion is easy to see. The loft (real loft) is 10.5 degrees, the score line color is white, the width is 0.6mm, the face surface is satin finish (silver), and the specifications of the prepared golf clubs are all the same did.
[0014]
Table 1 below shows measurement results of evaluating the appearance of the face portion at the time when six golf clubs in which only the score line angle was changed were addressed for each subject. Each golf club has a top portion A of an edge 7 to be described later aligned with a face center position B.
[0015]
[Table 1]
As can be seen from this result, when the score line angle is as small as 3.0 degrees, all the subjects evaluated that it looks like a hook face, but as the score line angle is set larger, it is evaluated that it looks almost straight. The number of people who do not have increased, and when it was set to 7.0 degrees, the number of people who evaluated that it looked almost straight exceeded the number of people who evaluated that it looked like a hook face, and a predetermined effect was obtained.
[0016]
That is, in a large-sized head, when the hook face is 1.5 degrees or more, an uncomfortable feeling occurs at the time of addressing. This uncomfortable feeling can be solved to some extent by setting the score line angle formed on the face to 7 degrees or more. Become. In this case, a favorable evaluation result was obtained by setting the score line angle large, but in reality, if the score line angle is set too large, the score line 5, the face 1a, and the top 1b The score line angle is preferably set to 13 degrees or less because the ridge line (edge 7) between them becomes twisted and the apparent balance deteriorates.
[0017]
Also, when addressing, the edge 7 described above also affects the appearance of the face, and depending on how it is formed, it is possible to make the hook face look straight. Specifically, as shown in FIGS. 2 and 3, the apex A of the edge 7 (the highest position from the installation surface P when addressed with a predetermined lie angle) is set to the face center position B (toe of the face 1a). When the maximum width position in the heel direction is C and D, the width is formed so as to be on the toe side by a predetermined distance L from the position where the perpendicular line dropped from the midpoint E to the installation surface P and the edge 7). Thus, it is possible to eliminate the uncomfortable feeling that it looks like a hook face when addressing.
[0018]
The measurement results shown in Table 1 above are golf club heads in which the apex A of the edge 7 is aligned with the face center position B, but the apex A of the edge 7 is on the toe side by a predetermined distance L from the face center position B. Table 2 below shows the results of measurements performed on the golf clubs performed in the same manner. In addition, the golf club in Table 2 (a) has shown what set L to 5 mm, and the golf club in Table 2 (b) has shown what set L to 10 mm.
[0019]
[Table 2]
As can be seen from this result, in any case, when the score line angle is 7.0 degrees or more, compared to the case where the apex A of the edge 7 in Table 1 is matched with the face center position B, it looks almost straight. More than the number of people who evaluated that it looks like a hook face. In particular, when L is set to 10 mm, the number of people who evaluate to look almost straight increases more than when 5 mm, and favorable results are obtained. It was. That is, by forming the head so that the top position of the edge 7 is on the toe side from the center position of the face, a golf club head that can further eliminate the uncomfortable feeling at the time of addressing can be obtained.
[0020]
Actually, L defined as described above may be set to be 5 mm or less, but by setting it to be 5 mm or more, an apparently preferable result is obtained, and it is set to 10 mm or more. By setting, more preferable results can be obtained.
[0021]
In principle, the edge 7 described above is specified by its ridgeline (when R is formed between the two, when the head face 1a and the top 1b are of the same color), the edge 7 is identified by the center position of R in cross-sectional view. The However, if the color is different between the face 1a and the top 1b and the actual ridge line and the boundary between the colors are different, the appearance becomes an important factor. Identified by the color boundary. Further, the apex A of the edge 7 defined as described above (the highest position from the installation surface P when addressed with a predetermined lie angle) has a predetermined length in the toe-heel direction. In such a case, the position of the top A is specified by the center position of the width.
[0022]
Although the embodiments of the present invention have been described above, the golf club head according to the present invention is not limited to the configuration other than the face angle, the volume, the score line angle, and the top portion, and may be appropriately modified. Is possible. In this case, it is preferable that the face portion is easily visible when addressing. For example, the loft is 11 degrees or more, the color of the score line is white, red, gold, etc. For example, the width of the lines may be 6 mm or less, and the width of each score line may be 0.7 mm or more.
[0023]
【The invention's effect】
According to the present invention, in a golf club head having a volume of 320 cc or more and a face angle of 1.5 degrees or more, there is obtained a golf club head capable of hitting a ball in a usual style without feeling uncomfortable when set. It is done.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a face angle when a golf club head is viewed in an addressed state.
FIG. 2 is a front view of a golf club head and illustrates a score line angle.
FIG. 3 is a view showing the golf club head shown in FIG. 2 in an addressed state.
[Explanation of symbols]
1 Golf Club Head 1a Face 1b Top 3 Shaft 5 Score Line 7 Edge (Ridge Line)

Claims (2)

  1. A golf club head having a volume of 320 cc or more and a face angle of 1.5 degrees or more and a score line angle of 7 degrees or more.
  2. 2. The golf club head according to claim 1, wherein a top portion of an edge between the face and the top is formed at a toe side of 5 mm or more from a face center position in a toe-heel direction of the face.
JP2002215014A 2002-07-24 2002-07-24 Golf club head Pending JP2004049802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002215014A JP2004049802A (en) 2002-07-24 2002-07-24 Golf club head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002215014A JP2004049802A (en) 2002-07-24 2002-07-24 Golf club head

Publications (1)

Publication Number Publication Date
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Family Applications (1)

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Country Status (1)

Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7285060B2 (en) * 2004-04-19 2007-10-23 Callaway Golf Company Golf club head with gasket
US7641570B2 (en) * 2007-04-10 2010-01-05 Sri Sports Limited Golf club head
US20110077101A1 (en) * 2009-09-30 2011-03-31 Thomas Orrin Bennett Golf club with rails
JP2012120636A (en) * 2010-12-07 2012-06-28 Globeride Inc Golf club

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7285060B2 (en) * 2004-04-19 2007-10-23 Callaway Golf Company Golf club head with gasket
US7641570B2 (en) * 2007-04-10 2010-01-05 Sri Sports Limited Golf club head
US20110077101A1 (en) * 2009-09-30 2011-03-31 Thomas Orrin Bennett Golf club with rails
US8328658B2 (en) * 2009-09-30 2012-12-11 Cobra Golf Incorporated Golf club with rails
US20130095952A1 (en) * 2009-09-30 2013-04-18 Thomas Orrin Bennett Golf club with trough in sole
US8771097B2 (en) * 2009-09-30 2014-07-08 Cobra Golf Incorporated Golf club with trough in sole
JP2012120636A (en) * 2010-12-07 2012-06-28 Globeride Inc Golf club

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