JPH08173579A - Duffing shot preventive golf club - Google Patents

Abstract

PURPOSE: To reduce a bush or sand resistance to a head of a golf club in the rough and a bunker of golf links. CONSTITUTION: A duffing shot preventive golf club is manufactured in such a way that slits 4 or the like are notched in a plurality toward a top surface from a bottom surface of a head 2, that is, plural slits 4 are notched on a face 3 almost parallel to the axis of a grip 1, and the extending ends of the respective slits 4 are properly arranged almost parallel to the top surface of the head 2.

Description

Detailed Description of the Invention

[0001]

[Industrial application] Golf clubs suitable for rough and bunker of golf courses.

[0002]

2. Description of the Related Art Conventionally, when a golfer enters a rough or a bunker on a golf course, it causes duffing due to the resistance of the bush or sand against the head of the bush or sand golf club.

[0003]

To reduce the resistance of a bush or sand to a golf club head in a golf course rough or bunker.

[0004]

[Technical Means] A plurality of slits 4 and 4a are cut from a bottom surface of a head 2 to a top surface of the head 3 so as to be substantially parallel to the axis of the grip 1, and a plurality of slits 4 extend to a head 4t. A golf club for preventing duffing that is aligned substantially parallel to the top surface of 2.

[0005]

The slits 4 and 4a allow rough bushes and bunker sand to pass therethrough, so that the resistance to the face 3 is significantly reduced. Further, since the slits 4 and 4a are cut in a direction substantially parallel to the axis of the grip 1, it is parallel to the turning direction of the golfer's arm, and the slit spacing 4w turns in a direction in which the ball flies. . Therefore, the reduction of the hitting force of the ball can be minimized.

Further, since the extension points of the slits 4 and 4a are aligned in parallel with the top surfaces of the heads 2 and 2a,
The striking base 2w between the line connecting the extension points of the slits 4 and 4a and the top surface of the head 2 maintains a constant width w. Therefore, the minimum strength of the heads 2 and 2a is maintained.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a case where the present invention is applied to an iron golf club. Grip 1 on face 3 of head 2
A slit 4 having a width of 2.0 to 2.5 mm parallel to the axis of is cut from the lower surface of the head at intervals of 3.0 to 3.5 mm over substantially the entire width of the face. At this time, the extension points of the slits 4 are aligned so as to be parallel to the top surface of the head. Therefore, a striking base 2w having a width w is left between the line connecting the extension points of the slit 4 and the top surface of the head 2. 4t indicates the extension destination of the slit 4. The depth of the slit 4 is set to 2/3 to 1/3 of the vertical length L of the head 2. If the slit 4 is deeper than this, the strength of the head 2 becomes too weak, and if it is shallower than this, it becomes difficult to introduce the sand of the bush or bunker.

Further, since the slit 4 is cut in the direction parallel to the axis of the grip 1, the turning direction of the slit spacing 4w coincides with the direction in which the ball flies, and the reduction of the hitting force is minimized.

Next, FIG. 2 shows a case where the present invention is applied to a wood golf club. As shown in FIG. 2, the slit 4a
Is cut from the lower surface of the head parallel to the axis of the grip 1a as in the case of the iron. The width of the slit 4a, the size of the slit interval portion 4w, the distribution, and the like are the same as those in FIG. 2w is also a hitting base. In the case of a wood club, unlike the case where the head 2a is an iron, since it is close to an oval shape, the slit 4a is cut at a right angle to the face 3a from the bottom surface of the head 2a.

[0010]

【The invention's effect】

a: The tip of the bush is inserted into the slits 4 and 4a by a rough or a bunker so that the bush has no resistance and the operation of the golf club is smooth.

B: Since the slits 4 and 4a are cut in the direction parallel to the axis of the grip 1, the interval 4w is also swung in the direction in which the ball flies, so that the reduction of the hitting force is minimized.

C: Since the upper portions of the heads 2 and 2a are cut into the slits 4 and 4a leaving a half or more in the vertical direction from the top surface thereof, the remaining striking base 2w particularly lowers the strength when striking the ball. Can be held without doing.

[Brief description of drawings]

FIG. 1 is a perspective view of a head of an iron club,

FIG. 2 is a perspective view seen from the bottom of FIG.

FIG. 3 is a perspective view of a wood club head;

FIG. 4 is a bottom view of FIG.

[Explanation of symbols]

1, 1a: grip, 2, 2a: head, 2w: base of upper surface of head, 3, 3a: face, 4, 4a: slit, 4w: slit interval part.

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[Procedure amendment]

[Submission date] April 20, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

1) a) perspective view of a head of an iron club b) perspective view seen from the bottom of FIG. 1a

2) a) perspective view of the head of a wood club b) bottom view of FIG. 2a

Claims (3)

[Claims] 1. A line connecting the slits 4 and 4a from the bottom surface of the head 2 to the top surface of the head 3 in parallel with the axis of the grip 1 is the head 2.
A golf club for preventing duffing that is substantially parallel to the top surface of 2a. 2. The golf club is an iron.
The described golf club for preventing duffing. 3. The golf club according to claim 1, wherein the golf club is wood.