JP2003180892A - Grip for golf club - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent an air shot when a ball is hit with a golf club by improving the grip of the club and also to obtain a sense of unity with hands by arranging a projected strip to be reference for deciding the direction of the club in the case of addressing and providing a soft touch when the grip is held. <P>SOLUTION: The golf club grip is provided with an insertion hole having a substantially circular cross section where the shaft of the golf club is inserted. A thin, long and bar shape projection is arranged on the inner surface of the insertion hole, which presents the projected strip with ≤1.0 mm height in an axial direction on the outer surface of the grip after being crushed by the insertion of the shaft. When the projection has a square cross section, it is favorable that the both of the height and the width are formed within the range of 0.3-2.0 mm. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grip which constitutes a grip portion of a golf club and which is less likely to slip in the rotation direction of the club in the palm when hitting a ball.

[0002]

2. Description of the Related Art Leather grips made of leather and rubber grips made of natural rubber, synthetic rubber or the like are widely used as grips constituting a grip portion of a golf club. The grip is formed in a substantially cylindrical shape with an insertion hole into which a shaft of a golf club is inserted in a core portion. The insertion hole is generally formed as a taper hole having a large diameter on the inner side.

In the above-mentioned conventional rubber grip, in order to refer to the direction and address of the club, a back line, a rib, etc. are provided on the lower side when gripped with a hand, that is, the rear side as seen from the player. There is one in which a line-shaped projection along the axial direction called is formed. These streak projections are formed integrally on the outer surface of the grip itself, or by making a part of the inner surface of the circular shaft insertion hole flat, the wall thickness of that portion is increased and a shaft with a circular cross section is formed. It is formed by a method of bulging the outer surface portion of the portion into a convex shape when inserted. In addition, there is also proposed a rib that can be changed so that the rib can be adjusted according to the taste of the player (Japanese Patent Laid-Open No. 2000-176061).

[0004]

In the above-mentioned conventional rib forming method, since the thickness of the lower portion of the grip forming the rib becomes thicker, there is a problem that the weight is increased.
There is a problem in that the rib is stiff and there is a feeling of strangeness when gripping the grip. On the other hand, it has been proposed to provide unevenness on the inner surface side of the grip to reduce the impact on the hand (Japanese Patent Laid-Open No. 2000-24155).
Since this does not cause a protrusion to appear on the surface side of the grip, it does not serve as a standard for preventing rotation due to slip when a golf club is used or determining the orientation of the golf club.

Therefore, according to the present invention, a rib-shaped convex streak along the axial direction is formed on the back side portion of the grip, that is, the portion that is on the lower side when gripped by the hand, and the club is formed by slipping between the palm and the grip when hitting a ball. It can be used as a reference for determining the direction of the club at the time of addressing, and the grip of the grip is as soft as possible to give a sense of unity between the hand and the grip. That is the issue.

[0006]

In order to solve the above problems, the present invention employs the following configurations. That is, the grip for a golf club according to the present invention is a grip for a golf club having an insertion hole with a substantially circular cross section into which the shaft of the golf club is inserted, and on the inner surface of the insertion hole,
It is characterized in that a slender convex portion, which is crushed when the shaft is inserted and has a convex streak extending along the axial direction, is integrally provided on the grip outer surface portion. The height and width of the convex portion are such that the shaft can be inserted and a convex line having a desired size is formed. If the protruding height of this convex streak is too small, the effect as a convex streak will not be obtained, and if it is too large, it may cause discomfort or deviate from the standard as a competition club. The height of protrusion from the surface is preferably 0.1 to 1.0 mm.

In this golf club grip, since the convex portion (ridge) is formed on the inner surface side of the shaft insertion hole,
Inserting the shaft crushes the ridge,
The outer surface side of this portion bulges. Due to this bulge, streak-shaped projections or ribs along the axial direction are formed. These ribs are revealed by crushing with a shaft an elongated convex portion along the axial direction provided on a part of the inner surface of the grip having a substantially circular cross-sectional shape. Space is created. For this reason, the hand gripping the vicinity of the convex streak has a softer feeling and a sense of unity than the conventional rib. In the conventional method of forming ribs by increasing the thickness of the outer peripheral surface of the grip or forming the convex portion on the outer peripheral surface by partially increasing the thickness of the grip, the rib is formed on the outer surface side. The density of the entire convex portion is high, and when the grip is gripped, it often feels stiff and feels uncomfortable, but the grip of the present invention has a convex streak on the outer surface side by crushing the ridges provided on the inner surface side. It is easy to fit in your hand and gives you a sense of unity.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings. The grip 1 has substantially the same outer shape as that of the conventional one, but as shown in FIGS. 2 and 3, a cross-sectional schematic rectangular shape along the axial direction is formed on a part of the inner surface side of the insertion hole 1a having a circular cross section ( In the illustrated example, the upper surface has an arch-shaped curved surface, but an elongated convex portion (referred to as “convex strip”) 2 having a square shape or a trapezoidal shape may be formed. It is preferable that the rectangular convex strips 2 have a width w and a height h in the range of 0.3 to 2.0 mm. If the height and the width are too large, it is difficult to insert the shaft, and the weight is increased accordingly, and the size of the rib (convex line) formed on the back side becomes too large. . On the contrary, if it is too small, a rib having a desired shape and size cannot be obtained.

The ridge 2 may be formed over almost the entire length of the shaft insertion portion of the grip, but the ridge may be formed within an appropriate length (for example, 2.5 inches) from the inlet end. It is not necessary to provide 2, and this makes insertion of the shaft easier. The height of the ridges 2 may be a straight line having the same height as a whole, but the grip is generally tapered at the tip, that is, the opening side of the insertion hole, and the meat of the tip is the same. Since the thickness is thin, a taper structure in which the tip side is gradually lowered may be used. Further, in order to facilitate the insertion of the shaft in the vicinity of the opening of the insertion hole, it is preferable that the height of the convex 2 is notched obliquely in a chamfered shape to lower the inlet 2a.

The grip 1 is made of the same material as a conventionally known rubber grip. For example, natural rubber, isoprene rubber, ethylene-propylene-diene terpolymer rubber, styrene-butadiene rubber or the like is used. There are vulcanized molded products and the like. Further, in part, it is also possible to use cork or urethane resin. The ridges 2 can be formed of the same material as the other parts, but in order to ensure the appearance of the ribs, the hardness of the rubber of the ridges is made slightly higher than that of the other parts. You can leave it. Needless to say, the material of the ridge portion may be the same as that of the other portions.

FIG. 4 shows the cross-sectional shape of the grip with the shaft S inserted. When the shaft is not inserted, as shown in FIG. The elongated convex portion (convex strip) 2 is integrally formed on the inner surface side of the portion (which becomes the lower side when
When the shaft S is inserted into this grip, as shown in FIG. 4, the ridge 2 is crushed and the outer surface side of that portion bulges to form a rib-shaped convex streak 5. Since the inside of this part is originally an elongated ridge, as shown in these figures, a gap 7,
7 is formed. For this reason, both side portions of the rib 5 that bulges outward are easily elastically deformed, the fingers of the hand that touch this portion receive a relatively soft feel, and a sense of unity between the hand and the grip is obtained. The protruding height of the rib 5 (see FIG.
It is preferable that t) in is about 0.1 to 1.0 mm, and more preferably 0.5 to 1.0 mm.
If the height is too low, the feel of the convex streak itself is too small to serve as a guide when gripping, and it becomes difficult to obtain the slip prevention effect. On the contrary, if the protruding height is too high, there is a possibility that a user may feel uncomfortable when grasping. In addition, when a beginner or the like uses it for a club for practice, it may be preferable that the protruding height of the convex streak be somewhat high, but it is for official competitions where the shape and dimensions of this type of convex part are specified. In the case of a club, it should conform to the standard. Further, since the convex streak 5 may be formed at least in a portion gripped by a hand, it may not be formed in a predetermined range on the inlet side of the grip or in the vicinity of the rear end of the grip.

FIG. 5 shows an embodiment different from the above. In the embodiment shown in FIG. 5, the ridges 20 are formed in a generally circular cross section. In this case, it is preferable that the diameter (height and width) of the ridges is approximately the same as the above range. In this case as well, the ridges formed on the inner surface side are crushed by the shaft to form rib-shaped convex streaks 5 on the outer surface side, and the gaps 7, 7 are formed on both sides of the crushed ridges. A soft touch is obtained near the muscle 5.

FIG. 6 shows a further different embodiment. In this embodiment, the cross-sectional shape of the ridge 20 'is a substantially triangular shape. Also in this case, by inserting the shaft S, the ridge is crushed and the rib appears on the outer surface side.
It is the same as above that a gap is formed in the vicinity of the crushed ridge. The height of the ridge 20 'is less than several mm in both height and width, but it is preferable to make it slightly larger than the above example due to the smaller volume. In addition to the above, the shape may be any other suitable shape, for example having a polygonal cross section.

[0014]

As described above, in the golf club grip according to the present invention, the rib-shaped convex streak along the axial direction is formed in the portion on the back side as seen from the player, so that it is possible to perform the addressing. In addition to being able to be used as a reference for the orientation of the golf club, etc., it was possible to prevent the club from rotating around its axis due to slipping at the time of hitting, and it was possible to shoot accurately as intended. Moreover, since there are gaps on both sides of this rib on the back side, even if it is made of a rubber material with high hardness, the feel of the hand holding the grip will be soft, and the feeling of unity with the hand will be excellent, It became less.

[Brief description of drawings]

FIG. 1 is an external view showing a main part of a golf club using a grip of the present invention.

FIG. 2 is a vertical cross-sectional view showing an example of a golf club grip of the present invention.

FIG. 3 is a cross-sectional view thereof.

FIG. 4 is a cross-sectional view of the grip in a shaft inserted state.

FIG. 5 is a cross-sectional view showing an embodiment different from the above.

FIG. 6 is a sectional view showing still another embodiment.

[Explanation of symbols]

1 grip 1a insertion hole 2 convex 5 Convex (rib) 7 gap 20 convex 20 'ridge S shaft

Claims (5)

[Claims] 1. A grip for a golf club having an insertion hole having a substantially circular cross section into which a shaft of a golf club is inserted, wherein the grip is crushed by an inner surface of the insertion hole in a shaft inserted state to an outer surface portion of the grip in an axial direction. A grip for a golf club, which is provided with an elongated rod-shaped convex portion in which a convex streak along the edge appears. 2. The grip for a golf club according to claim 1, wherein a convex portion is provided so that a convex streak appears in a portion that is on the lower side when the grip is gripped. 3. The golf club according to claim 1, wherein the convex portion is provided so that the height of the convex streak that appears on the outer surface of the grip is 0.1 to 1.0 mm when the shaft is inserted. Club grip. 4. The cross-sectional shape of the convex portion provided on the inner surface of the grip is substantially quadrangular, and the height and the width thereof are both 0.
The grip for a golf club according to any one of claims 1 to 3, which is in a range of 3 to 2.0 mm. 5. The golf club grip according to claim 1, wherein the convex portion is formed of a rubber material having a hardness higher than that of the other portion of the grip.