KR20210150667A - Stiffness improved Golf Club Shaft and Golf Club with thereof - Google Patents

Abstract

The present invention relates to a shaft for a golf club with improved rigidity and a golf club having the same. In particular, the shaft for a golf club comprises: a shaft body having a cylindrically-shaped shaft body with a hollow center, a golf head coupled to a lower-end part of the shaft body, and a grip that a user can hold coupled to an upper part of the shaft body; and an additional weight part coupled to the shaft body so as to partially add weight to the outside of the shaft body. According to the present invention, it is possible to impart rigidity by partially adding weight to the shaft for a golf club, maximizing the head speed at the moment of impact with the golf ball, and improving the flying distance.

Description

A shaft for a golf club with improved rigidity and a golf club having the same {Stiffness improved Golf Club Shaft and Golf Club with thereof}

The present invention relates to a shaft for a golf club having improved rigidity and a golf club having the same, and more particularly, to a shaft for a golf club having improved rigidity capable of improving rigidity by adding a weight part partially added to a part of a golf club, and the same It is about having a golf club.

When a golf ball is hit with the head of a golf club, one method is to increase the head speed in order to increase the flying distance of the golf ball. When a golf player swings a golf club, it is desirable to bend the shaft for a golf club to delay the head position, and to be able to compensate for the delay of the head between several tens of centimeters before the striking position until reaching the striking position. In order to make up for the delay of the head, it is possible to increase the head speed by accelerating the head by performing an operation such as rotating the wrist.

A state in which the face surface of the head returns to a position corresponding to the shaft axis at the moment the head of the golf club strikes the golf ball is preferable in terms of efficiently transmitting striking energy to the golf ball.

In this respect, the shaft for a golf club should be able to bend and have rigidity at the same time.

Although attempts have been made in the prior art to impart rigidity to the shaft for golf clubs in this way, it would be desirable to increase the rigidity of the shaft for golf clubs so as to increase the effect while being more effective and economical.

[references]

Japanese Laid-Open Patent Publication No. 2005-169026 (published on June 30, 2005)

Unexamined Patent Publication No. 10-2019-0066858 (published on June 14, 2019)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a shaft for a golf club with improved rigidity and a golf club having the same.

Another object of the present invention is to provide a shaft for a golf club having improved rigidity capable of maximizing a head speed at the moment of impact with a golf ball, and a golf club having the same.

Another object of the present invention is to provide a shaft for a golf club having improved rigidity capable of uniformly maintaining a RBI, which is a position at which a golf ball is impacted, and a golf club having the same.

In addition, another object of the present invention is to maintain the same quality of the golf club shaft by making the material of the golf club shaft and the material of the added weight the same, and improve the appearance of the golf club shaft with improved rigidity. And to provide a golf club having the same.

Another object of the present invention is to provide a shaft for a golf club with improved rigidity, which can be simply and conveniently installed and applied to an existing shaft for a golf club, and a golf club having the same.

It is an object of the present invention, in a golf club shaft for a golf club, a shaft body having a hollow cylindrical shape, a golf head coupled to a lower end of the shaft body, and a grip that a user can hold on the upper portion of the shaft body a shaft coupled thereto; It is achieved by the shaft for a golf club comprising a; an additional weight portion coupled to the shaft body so as to partially add weight to the outside of the shaft body.

In addition, the added weight is preferably in the range of 2g to 0.7g.

In addition, it is preferable that the weight of the additional weight portion is gradually lighter as the distance from the grip increases.

In addition, it is preferable that the material of the additional weight portion is the same as that of the shaft body.

In addition, the additional weight portion is preferably coupled to only a portion of the outer periphery of the shaft body or surrounds the entire outer periphery of the shaft body.

In addition, when the additional weight portion is coupled to only a part of the outer periphery of the shaft body, the additional weight portion is coupled so that the weight is equally distributed on the left and right around the head face side area of the cross-sectional diameter of the shaft body parallel to the head face of the driver club it is preferable to have

In addition, an object of the present invention, a shaft for a golf club; It is also achieved by a golf club comprising a; a club head coupled to the shaft for the golf club.

Accordingly, according to the present invention, it is possible to provide a shaft for a golf club with improved rigidity, which can impart rigidity by partially adding weight to the shaft for a golf club, and a golf club having the same.

In addition, it is possible to provide a shaft for a golf club with improved rigidity capable of maximizing the head speed at the moment of impact with the golf ball, and a golf club having the same.

In addition, it is possible to provide a shaft for a golf club having improved rigidity capable of uniformly maintaining a RBI, which is a position at which a golf ball is impacted, and a golf club having the same.

In addition, by making the material of the shaft for the golf club the same as the material of the added weight, it is possible to maintain the homogeneity of the shaft for the golf club, and to provide a shaft for a golf club with improved rigidity, and a golf club having the same. can

In addition, it is possible to provide a shaft for a golf club with improved rigidity that can be simply and conveniently installed and applied to an existing shaft for a golf club, and a golf club having the same.

1 is a perspective view showing an example of a golf club according to an embodiment of the present invention;
2 is a view in which an additional weight part is installed on a shaft for a golf club in order to explain various embodiments of the present invention of FIG. 1;
3A and 3B are cross-sectional views of a shaft for a golf club;
4A and 4B are front views for explaining a state of a shaft for a golf club when a ball is hit with a golf club according to an embodiment of the present invention.

A shaft for a golf club having improved rigidity according to an embodiment of the present invention and a golf club having the same (hereinafter referred to as a 'golf club') will be described in detail with reference to FIGS. 1 to 4B as follows.

1 is a perspective view illustrating an example of a golf club according to an embodiment of the present invention, and FIG. 2 is a view in which an additional weight part is installed on a shaft for a golf club in order to explain various embodiments of the present invention of FIG. , FIGS. 3A and 3B are cross-sectional views of a shaft for a golf club, and FIGS. 4A and 4B are front views for explaining the state of the shaft for a golf club when hitting a ball with a golf club according to an embodiment of the present invention .

For convenience of explanation and understanding below, as in FIG. 1, for example, the shaft 130 of the golf club 100 including a driver in the longitudinal direction (up and down direction to oblique up and down direction) in the 'X' axis direction, the head ( 110), the direction (left and right) passing through the center of the shaft 130 and parallel to the head face 113 of 110) is the 'Y' axis direction, and the direction perpendicular to the 'XY' plane (front and back direction) is the 'Z' axis direction. . In terms of the structure of the golf club 100 , the angle between the 'X' axis and the 'Y' axis is not a right angle, but is greater than a right angle.

Prior to describing the present invention in more detail, the present invention may have various changes and may have various forms, embodiments (態樣, aspect) (or implementation

ex) will be explained in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In each drawing, the same reference sign, particularly the number of the tens and one digit, or the reference numerals having the same tens, one, and alphabet, indicates a member having the same or similar function, and, unless otherwise specified, each The member indicated by the reference sign may be regarded as a member conforming to these standards.

In addition, in each drawing, components are expressed in exaggeratedly large (or thick), small (or thin) or simplified in size or thickness in consideration of convenience of understanding, but the protection scope of the present invention is limited by this. it shouldn't be

The terminology used herein is only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as comprises or consists of are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Golf club 100 according to an embodiment of the present invention, as shown in Figures 1 to 4b, a head 110 hitting the golf ball 10, and a long center coupled to the head 110 An empty cylindrical shaft 130 , a grip 150 surrounding the shaft 130 so that a user can hold it on the upper portion of the shaft 130 , and an additional weight part in which weight is partially added to the outside of the shaft 130 . (133) is preferred.

The head 110 has a known shape, and, for example, when the golf club 100 is a driver, it has a head face 113 that strikes the golf ball 10 as shown in FIG. The head face 113 has a cylindrical shape with a streamlined center empty in the rear.

When the golf club 100 is not a driver but a wedge type including an iron or sand wedge, the head 110 is somewhat different from the driver.

The shaft 130 has a hollow center, a smaller diameter on the head 110 side, and a larger diameter toward the grip 150 side, and an additional weight portion coupled to the outer periphery of the shaft body 130a ( 133), and the shape of the shaft body 130a is known.

The shaft 130 functions to transfer the kinetic energy of the golfer who is the user to the golf ball. The material of the shaft 130 has been gradually developed from wood made of fruit trees including walnut wood, metal material including metal, carbon or graphite, which is a material such as an airplane body.

The material of the shaft 130 according to the present invention includes carbon or graphite material and preferably includes the same carbon or graphite material as the material of the shaft 130 of the additional weight portion 133 .

In addition, the weight of the additional weight portion 133 added to the outer periphery of the shaft 130 is preferably lighter as the distance from the grip 150 increases. As shown in FIG. 2, from the grip 150 to the head 110 side (refer to 'L2', 'L3' and 'L4' and 133a, 133b, 133c and 133d in FIG. 2) additional weight portion 133 It is preferable that the weight of That is, the additional weight portion 133 is preferably coupled to the shaft body 130a at a distance (refer to 'L1' in FIG. 2 ) spaced apart from the lower end of the grip 150 to some extent.

In addition, the shaft 130 made of carbon or graphite tends to be lighter in weight while increasing in strength in recent years. The added weight part 133 according to the present invention is preferably in the range of 2 g to 0.7 g. If it is heavier than this weight, excessive weight increases and the rigidity of the shaft 130 becomes too strong due to the improved strength more than necessary or does not help to improve the strength of the shaft 130 when the added weight is small.

And, in the present invention, adding the additional weight portion 133 to any one part of the shaft 130 is exemplified, but a combination of two or more may be applied.

On the other hand, the additional weight portion 133, as shown in Figure 3a, coupled to only a portion of the outer periphery of the shaft body 130a, or as shown in Figure 3b, partially surrounding the entire outer periphery of the shaft body (130a) It is preferable to

Here, as shown in FIG. 3A, when the additional weight part 133 is coupled to only a part of the outer periphery of the shaft body 130a, the cross-sectional diameter of the shaft body 130a parallel to the head face 113 (' It is preferable that the additional weight portion 133 is coupled to the shaft body 130a so that the weight is equally distributed on the left and right around the head face 113 side of the Y′ axis).

The operation process of the golf club 100 having such a configuration will be described with reference to FIGS. 4A and 4B showing the process of hitting a golf ball with the golf club 100 as follows.

4A is a view showing a moment when the head face 113 contacts the golf ball 10 in the process of hitting the golf ball with the golf club 100, and FIG. 4B is the head 110 of the golf ball 10. It is a conceptual diagram showing after hitting the .

As shown in FIG. 4B, when the golf ball 10 is hit with the golf club 100, the head 110 receives the recoil of the impact from the golf ball 10, so the shaft 130 for the golf club. The tip side of (the 'K' region in FIG. 4B ) is at a position relatively more advanced than the head 110 in the moving direction of the golf club shaft 130 , and a phenomenon in which the shaft 130 is bent occurs.

This bending phenomenon becomes a factor of energy loss when the kinetic energy or hitting energy of the golf club 100 is transmitted to the golf ball 10 , and becomes a factor causing a decrease in the flying distance of the golf ball 10 . Accordingly, when the face of the head face 113 hits the golf ball 10, the bending of the tip side (region K) of the shaft 130 is suppressed so that the axis of the shaft 130 and the head face 113 are shown in FIG. 4B . Positioning on a vertical line indicated by a dotted line (see 'S' in FIG. 4B ) is preferable because it efficiently imparts striking energy to the golf ball 10 . This effect can be achieved by adding the additional weight portion 133 to the shaft 130 according to the present invention.

In addition, the hinge effect that can improve the spread of the head 110 by easily releasing the golfer due to the added weight may also be increased.

Accordingly, according to the present invention, it is possible to provide a shaft for a golf club with improved rigidity, which can impart rigidity by partially adding weight to the shaft for a golf club, and a golf club having the same.

In addition, it is possible to provide a shaft for a golf club with improved rigidity capable of maximizing the head speed at the moment of impact with the golf ball, and a golf club having the same.

In addition, it is possible to provide a shaft for a golf club having improved rigidity capable of uniformly maintaining a RBI, which is a position at which a golf ball is impacted, and a golf club having the same.

In addition, by making the material of the shaft for the golf club the same as the material of the added weight, it is possible to maintain the homogeneity of the shaft for the golf club, and to provide a shaft for a golf club with improved rigidity, and a golf club having the same. can

In addition, it is possible to provide a shaft for a golf club with improved rigidity that can be simply and conveniently installed and applied to an existing shaft for a golf club, and a golf club having the same.

Here, although an embodiment of the present invention has been illustrated and described, those of ordinary skill in the art to which the present invention pertains can understand that this embodiment can be modified without departing from the principle or spirit of the present invention. will be. The scope of the invention will be defined by the appended claims and their equivalents.

100: golf club 110: club head
113: head face 130: shaft
130a: shaft body 133: added weight part
150: grip 10: golf ball

Claims (7)

A shaft for a golf club for a golf club,
a shaft having a hollow cylindrical shaft body, a golf head coupled to a lower end of the shaft body, and a user gripping grip coupled to an upper portion of the shaft body;
and an additional weight part coupled to the shaft body so as to partially add weight to the outside of the shaft body. According to claim 1,
The added weight portion for a golf club shaft, characterized in that in the range of 2g to 0.7g. 3. The method of claim 1 or 2,
The weight of the additional weight portion is a golf club shaft, characterized in that the farther away from the grip, the lighter it is. 4. The method of claim 3,
The material of the additional weight portion is a golf club shaft, characterized in that the same material as the shaft body. 5. The method of claim 4,
The additional weight portion is coupled to only a portion of the outer periphery of the shaft body, or golf club shaft, characterized in that surrounding the entire outer periphery of the shaft body. 6. The method of claim 5,
When the additional weight portion is coupled to only a portion of the outer periphery of the shaft body, the additional weight portion is coupled such that the weight is equally distributed on the left and right around the head face side of the cross-sectional diameter of the shaft body parallel to the head face of the driver club Shaft for golf clubs. A shaft for the golf club of claim 1;
A golf club comprising a; a club head coupled to the shaft for the golf club.

Images