JP3547272B2 - Golf club head having a function of adjusting loft angle and lie angle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a golf club head having a function of adjusting a loft angle and a lie angle. More specifically, a completed metal hollow golf club head such as a wood golf club head or an iron golf club head is subjected to a loft angle by post-processing. And a golf club head in which the lie angle can be adjusted to an arbitrary angle.
[0002]
[Prior art]
Conventionally, in a hollow golf club head made of metal such as a wood golf club head (or iron golf club head), the hosel portion 2 of the head body 1 is integrated with the crown portion 3 of the head body 1 as shown in FIG. The hosel portion 2 is formed so as to protrude outward from the crown portion 3 or protrude into the head main body 1 so that the tip end side of the shaft 4 is supported and fixed.
[0003]
That is, the conventional hosel part 2 is a so-called complete rigid body that is connected to the crown part 3 of the head body 1 and is a so-called completely rigid body, so that it can be used during golf club swinging or ball impact (at the time of hitting a ball). The head body 1 has a structure that hardly deforms.
[0004]
[Problems to be solved by the invention]
Therefore, the dynamic behavior of the golf club, such as real loft and face angle, is not related to the head body itself, which is a completely rigid body, but the characteristics of the shaft (for example, shaft deflection, twisting, elastic force, etc.) The actual situation is that the directionality of the ball hit with a large hit and the sense of stability in the height direction cannot be obtained.
[0005]
Further, when a ball is hit with a conventional golf club, stress concentrates on the upper end portion of the hosel portion 2 protruding outward from the crown portion 3, causing the shaft 4 to be broken.
In addition, the loft angle and lie angle may be adjusted by post-processing on the completed metal hollow golf club head according to the user's request. For this adjustment, a method of bending the bosel using an adjustment jig In general, it is said that there is little influence on the external shape.
[0006]
However, when adjusting the loft angle and lie angle in such post-processing, the material of the hosel part of the club head is limited to soft iron or stainless steel, and in recent years hard materials such as titanium and hollow metal heads are commercially available. There was a problem that adjustment was difficult.
The present invention has been devised by paying attention to such conventional problems, and is not affected by the characteristics of the shaft, and has a stable directionality and high trajectory without giving a sense of rigidity between the head body and the shaft. In addition, the function of adjusting the loft angle and lie angle that can effectively prevent shaft breakage and can easily adjust the loft angle and lie angle by post-processing without being constrained by the material of the club head. An object of the present invention is to provide a golf club head provided.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a golf club head having a hollow structure in which an outer shell portion having a shaft insertion hole formed in a crown portion and a sole plate are integrally formed of a metal material, A gist is provided on the back side of the plate that is detachably provided with an angle adjustment member that supports the tip of the shaft inserted from the shaft insertion hole and can adjust the loft angle and lie angle of the head body at an arbitrary angle. It is what.
[0008]
The angle adjusting member is composed of an angle supporting member fixed to the back side of the sole plate, and a replaceable hosel member that is detachable from the angle supporting member and adjusts the loft angle and the lie angle. It is what.
The hosel member protrudes outward from the shaft insertion hole formed in the crown portion and is separated from the crown portion. Further, the hosel member is elastically inserted into the shaft insertion hole formed in the crown portion. A rubber-like elastic support member to be supported is provided .
[0009]
The present invention is configured as described above, and in the metal hollow golf club head, the shaft tip support member, that is, the hosel part is erected on the inner wall surface of the sole part toward the inside of the hollow part and separated from the crown part. By configuring the head body and shaft without giving a sense of rigidity, the characteristics of the shaft (for example, shaft deflection, twisting, elastic force, etc.) when swinging a golf club or impacting a ball (when hitting a ball) ), The head body itself can be deformed and hit, and as a result, a stable direction of the hit ball and a high trajectory can be obtained.
[0010]
Also, an angle adjusting member that supports the tip of the shaft inserted from the shaft insertion hole and can adjust the loft angle and lie angle of the head body to an arbitrary angle is provided on the back side of the sole plate in a detachable manner. Thus, the loft angle and the lie angle can be easily adjusted by post-processing without depending on the material of the club head according to a request from the user for the finished product golf club.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
Note that the same components as those in the conventional example are denoted by the same reference numerals and description thereof is omitted.
FIG. 1 is a longitudinal front view of a head body 1 of a wood golf club showing a first embodiment of the present invention. The head body 1 has an outer shell portion 2a in which a shaft insertion hole 7 is formed in a crown portion 3, and The sole plate 5 is integrally formed in a hollow shape with a metal material (for example, titanium or a titanium alloy).
[0012]
The back side 5a of the sole plate 5 of the head main body 1, that is, the hollow portion 1a of the head main body 1, supports the tip 4a of the shaft 4 inserted from the shaft insertion hole 7, and the loft of the head main body 1 Angle α (the tendency of the face surface relative to the shaft axis P-P) and lie angle β (the tendency of the shaft when the sole is seated normally (the same gap between the toe and heel of the club head)) An angle adjusting member 10 that can be adjusted by the angle is provided so as to be detachable.
[0013]
3A and 3B are explanatory views showing the loft angle α and the lie angle β of the iron golf club head.
The angle adjustment member 10 is an angle support member 11 that is fixed to the back side of the sole plate 5, and an exchangeable hosel member that is detachable from the angle support member 11 and that adjusts the loft angle α and the lie angle β. 12.
[0014]
In the first embodiment shown in FIG. 1, the angle support member 11 of the angle adjustment member 10 is integrally formed with a protruding member 11 b having an annular recess 11 a on the back side of the sole plate 5.
Further, the hosel member 12 is formed in a cylindrical shape with an eccentric wall thickness through which the shaft 4 can be inserted, and the distal end portion 12a of the hosel member 12 is detachably attached to the annular recess 11a of the angle support member 11, Further, the rear end portion 12b of the hosel member 12 protrudes outward from the shaft insertion hole 7 formed in the crown portion 3, and a peripheral portion of the shaft insertion hole 7 and the hosel member 12 are formed by a flange portion 13 provided at the terminal portion. It is comprised so that the clearance gap produced between the outer peripheral surfaces may be covered.
[0015]
The shaft insertion hole 7 formed in the crown portion 3 is formed larger than the diameter of the shaft 4 and the hosel member 12 so that the side surfaces of the shaft 4 and the hosel member 12 do not directly contact the peripheral portion of the shaft insertion hole 7. It is also possible to attach a rubber-like elastic support member 9 such as a rubber material or a flexible resin material so that the shaft 4 is not directly contacted by bending or twisting of the shaft 4.
[0016]
In addition to the function of elastically supporting the shaft 4 and the hosel member 12 as described above, the rubber-like elastic support member 9 does not allow dust, water, or the like to enter the hollow portion 1a of the head body 1 from the shaft insertion hole 7. Thus, it also has the function of a seal member. FIG. 2 is a longitudinal front view of the head main body 1 showing a second embodiment of the present invention. In this embodiment, a concave portion 14a into which the tip end portion 4a of the shaft 4 is inserted as the angle support member 14 of the angle adjusting member 10 is shown. A projecting member 14b having a convex section and a hem member 14c attached to the back surface 5a of the sole plate 5 via a fastening member 15 such as a screw or a bolt, and a hosel member 16 into which the shaft 4 is inserted. The shaft 4 is formed in a cylindrical shape that can be inserted into the shaft 4 with an eccentric thickness, and the front end portion 16a is fitted to the projecting member 14b and fixed on the hem member 14c. The end portion 16 b protrudes outward from the shaft insertion hole 7 formed in the crown portion 3, and the flange portion 17 provided at the end portion thereof is a peripheral portion of the shaft insertion hole 7 and the outside of the hosel member 16. It is configured to cover a gap arising between the surfaces.
[0017]
As in the first embodiment, the shaft insertion hole 7 formed in the crown portion 3 is formed larger than the diameter of the shaft 4 and the hosel member 16, and the side surfaces of the shaft 4 and the hosel member 16 are inserted into the shaft. A rubber-like elastic support member 9 such as a rubber material or a flexible resin material may be attached so as not to be in direct contact with the peripheral edge of the hole 7 and to be in direct contact with the shaft 4 due to bending or twisting. Is possible.
[0018]
As described above, in the metal hollow golf club head, the front end portion 4a of the shaft 4 inserted from the shaft insertion hole 7 into the back surface side 5a of the sole plate 5 of the head body 1, that is, into the hollow portion 1a of the head body 1. And an angle adjusting member 10 capable of adjusting the loft angle α and the lie angle β of the head body 1 at an arbitrary angle is detachably provided, and the angle adjusting member 10 is fixed to the back side of the sole plate 5. and angle support members 11 and 14, the angle support member 11, 14 detachably attached to, and is composed of exchangeable hosel member 12, 16 Metropolitan adjusting the loft angle α and lie angle beta, further crown part 3 by separating and can be configured without providing the rigid feeling of the head body 1 and the shaft 4.
[0019]
As a result, when the golf club is swinging or when the ball is impacted (at the time of hitting), the shaft 4 can use the angle support members 11 and 14 formed integrally with the sole portion 5 as fulcrums. Therefore, at the time of swinging the golf club or at the time of ball impact (at the time of hitting the ball), as shown in FIG. 4, it is not affected by the characteristics of the shaft 4 (for example, shaft bending, twisting, elastic force, etc.) The head body 1 itself can be deformed as indicated by an arrow X to hit the ball, and as a result, a stable direction of the hit ball and a high trajectory can be obtained.
[0020]
Further, the loft angle α and the lie angle β of the head body 1 can be adjusted to arbitrary angles depending on the support angle of the shaft 4 of the angle support members 11 and 14 and the eccentric thickness of the hosel members 12 and 16, and particularly completed. The loft angle α and the lie angle β can be easily adjusted by post-processing without depending on the material of the club head according to a request from the user for the golf club of the manufactured product.
[0021]
That is, when the loft angle α of the head body 1 is adjusted with respect to the completed club head, the eccentric thickness of the angle support members 11 and 14 fixed to the back side of the sole plate 5 in advance is increased. By positioning the hosel members 12 and 16 provided on the face surface or bag side of the head main body 1 when the shaft 4 is inserted into the hosel members 12 and 16, The tendency, that is, the loft angle α of the head body 1 can be easily adjusted.
[0022]
In addition, if the hosel members 12 and 16 prepare several types with different eccentric thickness beforehand, it can respond to the request | requirement from a user by replacing | exchanging the hosel members 12 and 16. FIG.
Further, when the lie angle β of the head body 1 is adjusted with respect to the completed club head, the eccentric thickness is increased with respect to the angle support members 11 and 14 fixed to the back surface side of the sole plate 5 in advance. When the hosel members 12, 16 provided are positioned on the toe side or the heel side of the head body 1, the sole portion is normally seated when the shaft 4 is inserted into the hosel members 12, 16. The tendency of the shaft, that is, the lie angle β can be easily adjusted.
[0023]
In addition, if the hosel members 12 and 16 prepare several types with different eccentric thickness beforehand, it can respond to the request | requirement from a user by replacing | exchanging the hosel members 12 and 16. FIG.
Further, since the shaft insertion hole 7 formed in the crown portion 3 is provided with a rubber-like elastic support member 9 so as not to be in direct contact with the shaft 4 and the hosel members 12, 16, when the golf club swings, the ball impact Sometimes breakage of the shaft 4 can be effectively prevented.
[0024]
In the above embodiment, the head body 1 of the wood golf club has been described. However, it can be applied to a club head of an iron golf club.
[0025]
【The invention's effect】
The present invention provides a golf club head having a hollow structure in which the outer shell portion in which the shaft insertion hole is formed in the crown portion and the sole plate are integrally formed of a metal material as described above. An angle adjustment member that supports the tip of the shaft inserted from the shaft insertion hole and can adjust the loft angle and lie angle of the head body at an arbitrary angle on the back side is detachable. It has an excellent effect.
(1). The head body itself can be deformed and hit without being affected by the characteristics of the shaft (for example, shaft deflection, twisting, elastic force, etc.), and as a result, stable hitting ball direction and high trajectory can be obtained. .
(2). The loft angle and lie angle of the head body can be adjusted to any angle according to the support angle of the shaft of the angle support member and the eccentric thickness of the hosel member. If desired, the loft angle and lie angle can be easily adjusted by post-processing without being limited by the material of the club head.
(3). Since the shaft and the hosel member are not in direct contact with the shaft insertion hole formed in the crown portion and a rubber-like elastic support member is provided, it is possible to effectively prevent the shaft from being broken during a swing of a golf club or a ball impact.
(4). Further, the rubber-like elastic support member has a function of a seal member so that dust and water do not enter the hollow portion of the head body from the shaft insertion hole in addition to the function of elastically supporting the shaft and the hosel member. I can do it.
[Brief description of the drawings]
FIG. 1 is a longitudinal front view of a head body of a wood golf club showing a first embodiment of the present invention.
FIG. 2 is a longitudinal front view of a head body of a wood golf club showing a second embodiment of the present invention.
FIGS. 3A and 3B are explanatory views showing a loft angle and a lie angle of an iron golf club head. FIGS.
FIG. 4 is an explanatory view showing a deformed state of the head main body during swinging of a golf club or ball impact.
FIG. 5 is a longitudinal front view of a head body of a conventional wood golf club.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Head main body 1a Hollow part 2 of head main body 2 Hosel part 2a Outer shell part 3 Crown part 4 Shaft 4a End part of shaft 5 Sole part 5a Back side of sole part 6 Face part 7 Shaft insertion hole 9 Rubber-like elastic support member 10 Angle Adjustment member 11 Angle support member 12 Hosel member 12a Front end portion 12b of hosel member Rear end portion 13 of hosel member 14 Angle support member 14a Recessed portion 14b Protruding member 14c Bottom member 15 Fastening member 16 Hosel member 17 Rift portion α Loft angle β Lie angle

Claims (1)

A golf club head having a hollow structure in which an outer shell portion having a shaft insertion hole formed in a crown portion and a sole plate are integrally formed of a metal material, wherein the shaft insertion hole is formed on a back surface side of the sole plate. An angle adjusting member that supports the tip of the shaft inserted from the head and that can adjust the loft angle and lie angle of the head body at an arbitrary angle is detachable,
The angle adjustment member includes an angle support member that is fixed to the back side of the sole plate, and an exchangeable hosel member that is detachable from the angle support member and that adjusts the loft angle and the lie angle.
The hosel member protrudes outward from a shaft insertion hole formed in the crown portion, and has a structure separated from the crown portion ,
A golf club head having a function of adjusting a loft angle and a lie angle , wherein a rubber-like elastic support member that elastically supports the hosel member is provided in a shaft insertion hole formed in the crown portion .

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