JP2007029648A - Putter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a putter capable of self-standing even in a place having some undulation. <P>SOLUTION: A putter head 14 is provided with a front-side head 18 formed with a ball hitting surface 22 in its front face, and a back-side head 20 provided in the back side of the front-side head part; the bottom of the front-side head 18 is projectingly formed with a first abutment part A and a second abutment part B abutting on a lawn face of green respectively; and the bottom of the back-side head 20 is projectingly formed with a third abutment part C abutting on the lawn face of the green. Even if this putter is self-stood on the green with undulations, the putter head 14 constantly abuts on the lawn face of the green at three points, the first abutment part A, the second abutment part B and the third abutment part C and an abutment area X formed by connecting the three abutment parts A, B and C has a fixed area, so that even if the gravity center position of the putter 10 is changed by inclination, it is unlikely that the putter is overturned. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a putter that can be made independent on a green turf surface.

  In golf competitions, the basics of putting is to hit the ball straight, but this technique is very difficult for beginners as well as middle and advanced players.

  This is because, in order to “hit the ball straight”, the cup or target spot (which is a target point set in consideration of the lawn, inclination, distance to the cup, etc.) and the sweet spot of the ball and putter are the same. It is necessary to adjust the angle so that the imaginary straight line connecting the three points and the ball hitting surface of the putter head are substantially orthogonal to each other. In actual putting, the putter is in a state where the putter is held. This is because it is necessary to adjust the position and angle of the lens, and it is difficult to perform this as intended.

  Such a problem can be solved by adjusting the position and angle of the putter in advance, and then holding the putter, and as a technique for that purpose, a putter that can stand on the green grass surface is proposed. (For example, refer to Patent Document 1).

In this conventional putter, since the bottom surface of the putter head is formed flat, the putter can be made self-supporting on a green that is relatively flat and not inclined. Therefore, the putter can be held after adjusting the position and angle of the putter, and more accurate and reliable putting can be performed.
JP-A-9-116611

  However, the actual green is not only flat, but usually has undulation. When the conventional putter is made to stand on the turf surface where such undulation exists, the bottom surface of the putter head is formed flat, so that the contact position with the turf surface on the bottom surface of the putter head depends on the location. In some cases, the area of the contact positions (hereinafter referred to as contact areas) may become extremely narrow (for example, putting a putter on the top of the green) If). To put the putter on its own, the center of gravity of the putter needs to be located within the contact area. However, as described above, if the contact area becomes extremely narrow, the center of gravity of the putter is It immediately goes outside the contact area and the putter falls down.

  Therefore, an object of the present invention is to provide a putter that does not fall easily even when it is made to stand by itself in a place where some undulation exists.

  According to the first aspect of the present invention, in the putter (10) including the shaft (12) and the putter head (14) attached to the tip of the shaft (12), the putter head (14) The front head portion (18) in which the ball striking face (22) is formed and the rear head portion (20) provided on the back side of the front head portion (18), the front head portion (18 ) Have a first contact portion (A) and a second contact portion (B) that are in contact with the green turf surface and projecting apart from each other, and the rear head portion ( On the bottom surface of 20), a third abutting portion (C) that abuts against the green turf surface is formed protrudingly ".

  The invention according to claim 2 is the following: "In the putter (10) comprising the shaft (12) and the putter head (14) attached to the tip of the shaft (12), the putter head (14) The front head portion (18) having a ball striking surface (22) formed on the front surface thereof, and the bottom surface of the front head portion (18) on the back side is positioned above the bottom surface of the front head portion (18). The rear head portion (20) is formed on the bottom surface of the front head portion (18), and the first contact portion (A) is formed on the heel side end portion by concavely bending the heel side. And a second abutting portion (B) is formed at the bulged portion by convexly curving the toe side, and the bottom surface of the rear head portion (20) has a third surface. The abutment portion (C) is formed so as to protrude ”.

  In these inventions, the first contact portion (A), the second contact portion (B), and the third contact portion (C) are formed to protrude from the bottom surface of the putter head (14). Since a gap is formed between the bottom surface of the putter head (14) and the ground contact surface (green grass surface), even if the putter (10) is self-supporting on the green where the undulation exists, the putter head (14) is always in contact with the green turf surface at the three points of the first contact part (A), the second contact part (B) and the third contact part (C). It becomes. In other words, the area of the contact area (X) formed by connecting the first contact part (A), the second contact part (B), and the third contact part (C) is always constant. Therefore, even when the putter is made to stand on a green where undulation is present, the center of gravity of the putter (10) is difficult to appear outside the contact area (X).

  The putter according to claim 3 is characterized in that “the putter head (14) is provided with aiming means (34) for determining the direction of putting”.

  In the present invention, since the aiming means (34) for determining the putting direction is provided in the putter head (14), the position of the putter head (14) can be adjusted more accurately.

  According to the present invention, since the area of the contact area with the green in the putter head is always constant, the center of gravity of the putter is the position of the contact area even when the putter is self-supporting on the green where the undulation exists. It is hard to go out and putters are unlikely to fall.

  Hereinafter, the present invention will be described in detail according to illustrated embodiments. As shown in FIG. 1, the putter (10) to which the present invention is applied is roughly composed of a shaft (12) and a putter head (14).

  The shaft (12) is a round bar-like member having a large diameter at one end and a small diameter at the other end, and a non-slip grip (16) is attached to the large diameter side end.

  As shown in FIGS. 2 to 3, the putter head (14) is roughly constituted by a front head part (18) and a rear head part (20). Of the putter head (14), the side closer to the body when the putter is held is the “heel side”, and the opposite side is the “toe side”.

  The front head portion (18) is a horizontally long block-shaped member made of a rigid material such as metal (for example, SUS, stainless steel, soft iron, etc.), and a ball striking surface (22) is formed on the front surface thereof. In the example, the back portion of the front head portion (18) is notched in a step shape.

  A hosel (24) extending upward is integrally formed at the upper end of the heel side of the front head portion (18). A boss hole (26) for inserting the small diameter side end of the shaft (12) is formed. In this embodiment, the boss hole (26) for connecting the shaft (12) and the putter head (14) is formed in the hosel (24), but the hosel (24) is not provided. Alternatively, the boss hole (26) may be directly formed in the heel side upper end portion of the front head portion (18).

  The bottom surface of the front head portion (18) has a concave curved surface (28) formed on its heel side, and a convex curved surface (30) formed on its toe side. The concave curved surface (28) and the convex curved surface (30) are continuously formed, and these are integrated to form a gentle laterally substantially S-shaped curved surface on the bottom surface of the front head portion (18). It is composed. In addition, the heel side end portion (the protruding portion of the heel side end portion of the concave curved surface (28)) on the bottom surface of the front head portion (18) is a first contact portion (A) in contact with the green grass surface. The protruding portion (more precisely, the bulging portion) of the convex curved surface (30) is a second contact portion (B) that contacts the green turf surface.

  Like the front head part (18), the rear head part (20) is a plate-like member made of a rigid material such as metal (SUS, stainless steel, soft iron, etc.) and whose outer shape is formed in a substantially triangular shape. It is formed integrally with the front head part (18) on the back side of the front head part (18) (Of course, after the front head part (18) and the rear head part (20) are formed separately from each other) Both members (18) and (20) may be fixed by means such as welding). The rear head portion (20) is arranged such that the bottom surface thereof is located above the bottom surface of the front head portion (18).

  In the rear head portion (20), two substantially triangular cutouts (32) are formed so as to face each other at a predetermined interval. Note that the linear portion (33) appearing by the notch (32) is located on the back surface of the sweet spot and functions as aiming means (34) for determining the direction of putting.

  Further, a protrusion (36) is formed to protrude from the rear end of the bottom surface of the rear head part (20), and the third contact part (C) with which the protrusion (36) contacts the green grass surface. ).

  When assembling the putter (10), the small diameter side end of the shaft (12) is inserted into the boss hole (26) formed in the hosel (24) of the putter head (14), and adhesive means such as an adhesive is used. To put the putter head (14) and the shaft (12) together.

  Note that the dimensions and weight of the putter head (14) and the shaft (12) are determined so that the center of gravity of the entire putter (10) including the putter head (14) and the shaft (12) is raised when the shaft (12) is upright. 1 inside the triangle (that is, the contact area (X)) connecting the first contact part (A), the second contact part (B), and the third contact part (C) with virtual straight lines. It is set to be placed.

  When using the putter (10), as shown in FIG. 4, the putter (10) is made to stand on the green grass surface and in the vicinity of the golf ball (G).

  Here, a first contact portion (A), a second contact portion (B), and a third contact portion (C) are formed to protrude from the bottom surface of the putter head (14). Therefore, when the putter (10) is made to stand on the green turf surface, a gap is formed between the bottom surface of the putter head (14) and the green turf surface. Therefore, even if there is some undulation in the green, the first contact portion (A), the second contact portion (B), and the third contact portion with respect to the green turf surface (C) always comes into contact, and since the area of the contact area (X) formed by connecting the three contact portions (A) to (C) becomes constant, the putter (10) of the tilted (10) Even if there is a change in the position of the center of gravity, it is difficult for a fall to occur.

  After placing the putter (10) in the vicinity of the ball (G), the target, the ball (G), and the hitting point are arranged on the same straight line, and the virtual straight line connecting the three points and the putter head The position and angle of the putter (10) are adjusted so that the striking surface (22) of (14) is substantially orthogonal. At this time, when the aiming means (34) for determining the putting direction is provided in the putter head (14) as in this embodiment, the position adjustment and angle adjustment of the putter (10) are more efficient. Can be done.

  When the position adjustment and the angle adjustment of the putter (10) are completed, the athlete determines the standing position according to the putter (10), and puts on the putter (10).

  According to the present invention, the first contact portion (A), the second contact portion (B), and the third contact portion (C) are formed to protrude from the bottom surface of the putter head (14). Since a gap is formed between the virtual plane connecting the three contact portions (A) to (C) and the bottom surface of the putter head (14), the putter (10 ) Even when the putter head (14) is always in contact with the green grass surface, the first contact portion (A), the second contact portion (B), and the third contact portion. It will contact at 3 points (C).

  In other words, the area of the contact area (X) formed by connecting the first contact part (A), the second contact part (B), and the third contact part (C) is always constant. Therefore, even when putting the putter (10) on a green where undulation is present, the center of gravity of the putter (10) is difficult to come out of the contact area (X), and the putter (10) falls. Is unlikely to occur.

  The aiming means (34) may have any configuration as long as the direction of putting can be determined. For example, in the embodiment of FIG. 5, the linear portion (33) that is the aiming means (34) is formed thick, and its upper end surface is inclined upward as it goes forward, and its tip portion is the front head. It protrudes upward from the upper end edge of the ball striking surface (22) of the part (18). In this case, since the distance between the aiming means (34) and the ball (G) can be made close and used as a mark, the position adjustment of the putter (10) with respect to the ball (G) can be performed more easily and accurately. Can be performed.

  Further, in the above-described embodiment, the outer shape of the rear head portion (20) is formed in a substantially triangular shape, but the shape is not limited to this, for example, a half as shown in FIG. Circular shape may be sufficient and rod shape as shown in FIG. 7 may be sufficient. In the case where the shape of the rear head portion (20) is a rod shape, the rear head portion (20) itself can be used as the aiming means (34).

It is a perspective view which shows the putter concerning this invention. It is a perspective view which shows a putter head. It is a figure which shows the front view, right view, top view, and bottom view of a putter head. It is a figure which shows a use condition. It is a figure which shows the modification of an aiming means. It is a figure which shows the modification of a rear side head part. It is a figure which shows another modification of a rear side head part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Putter 12 Shaft 14 Putter head 18 Front head part 20 Rear head part 28 Concave curved surface 30 Convex curved surface 34 Aiming means

Claims (3)

In a putter composed of a shaft and a putter head attached to the tip of the shaft,
The putter head has a front head portion in which a ball striking surface is formed on the front surface, and a rear head portion provided on the back side of the front head portion,
On the bottom surface of the front head portion, a first contact portion and a second contact portion that are in contact with the green turf surface are formed so as to protrude apart from each other,
The putter is characterized in that a third abutting portion that abuts against the green grass surface protrudes from the bottom surface of the rear head portion. In a putter composed of a shaft and a putter head attached to the tip of the shaft,
The putter head is formed such that a front hitting surface is formed on a front surface of the putter head, and a bottom surface of the front head portion is positioned above the bottom surface of the front head portion on the back side of the front head portion. A rear head portion,
On the bottom surface of the front head portion, a heel side end portion is formed by projecting a heel side concavely, and a first contact portion projects from the heel side end portion. 2 contact portions are formed,
The putter is characterized in that a third contact portion projects from the bottom surface of the rear head portion. The putter according to claim 1, wherein the putter head is provided with aiming means for determining a putting direction.

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