JP2760723B2 - Golf putter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf putter, and more particularly to a golf putter capable of changing the center of gravity (position) of a head in advance.

[0002]

2. Description of the Related Art An ordinary golf putter is mainly composed of a head (main body), a grip and a shaft connecting them, and has a substantially center point (sweet) on the face of the head. Spot: a point passing through the center of gravity of the head when hitting the ball).

However, actually, the center point on the face surface is
Some putters do not pass through the center of gravity of the head when hitting the ball, and some golfers want such a putter. In such a case, it is known to attach a metal piece to the head in order to move and adjust the center of gravity. Furthermore, the joint between the head and the shaft is located behind the head,
Therefore, even if the ball is hit at the approximate center point on the face of the head, the kinetic energy of the shaft portion may affect the rear of the head, causing the head to tilt and slightly affect the rolling direction of the ball.

[0004]

SUMMARY OF THE INVENTION The present invention comprises a main body, a grip, and a shaft connecting these two parts. The main body has an elongated face, and a concave portion is provided on the back side of the face. And a groove-shaped or ridged rail formed on the inner surface of the recess along the substantially longitudinal direction of the face surface, and the head is fixed at a desired position of the rail of the head, and when the fixing release operation is performed. can be moved along said rail, Ri Do and a refastenable centroid changes for quantum in different positions by a fixing operation, the center of gravity changes for quantum is Na
And a nut or a nut
Press the opposing sides of the rail between the nut member.
Pressure or sandwiched bolt members, and said head
Attaches the nut member or bolt member to a rail
When passing across the rails and then blocked with padding
It is a golf putter provided with a cut hole .

That is, according to the present invention, a concave portion is formed on the back side of the face surface of a head, a specific rail is formed on the inner surface of the concave portion, and a specific gravity changing weight can be fixed to the rail. By fixing
The center of gravity of the head can be changed and adjusted in advance, so that the center point on the face surface passes through the center of gravity of the head when hitting a ball, and the inclination of the head can be prevented.

In the present invention, a rail is formed on the inner surface of the concave portion of the head, and the configuration of the rail is a groove or a protrusion along a substantially longitudinal direction of the face surface. The weight for changing the center of gravity is releasably fixed to this rail. In other words, when the fixing weight is released, the weight can be moved along the rail, and can be re-fixed to a different position by the fixing operation, so that the center of gravity of the head can be moved before playing. In addition, the rails are
The surface has a large impact on the weight for changing the center of gravity.
Even if it is hit, it can be dispersed on the inner surface of the recess and after fixing
Of the center of gravity can be prevented.

As the weight for changing the center of gravity, specifically, a combination structure of a bolt member and a nut member as shown in the embodiment is preferable. Of course, the opposing side surfaces of the rail of the ridge are clamped between the bolt member and the nut member by tightening the bolt member or the nut member, thereby fixing the weight in a desired position. Advantageously, the tightening operation can be performed with a coin or the like through a minus groove in the head of the bolt or nut member. On the other hand, when the rail is formed in a groove shape, the bolt member and the nut member are operated so as to press opposite side surfaces of the groove, and are fixed to the rail.

Here, the material of the weight for changing the center of gravity is not particularly limited, but a metal (brass, titanium alloy, etc.) is preferable, and a weight of 10 to 25 g is preferable.
-20 g is more preferred.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on an embodiment shown in the drawings. Note that the present invention is not limited to this. 1 to 5, a golf putter (1) comprises a main body (2), a grip (3) and a shaft (4) connecting these two parts, and the main body (2) is made of brass. It comprises a head (5) and a brass center of gravity changing weight (6) (weight: about 17 g) fixed to the head.

The head (5) has an elongated face (7).
A concave portion (8) is formed on the back side of the face surface along the longitudinal direction of the face surface (7), and a ridge is formed on the inner surface of the concave portion along the longitudinal direction of the face surface (7). Rail (9) is formed. The weight changer (6) for changing the center of gravity is composed of a nut member (10) and a bolt member (11) screwed to the nut member. The two members (10) and (11), that is, the weight for changing the center of gravity (6) are fixed to specific positions of the rail (9) by being clamped between the rails (10) and (11).

When the golf ball is hit with the face of the putter (1) and the head (5) is felt to be inclined or the center of gravity is desired to be moved, the nut member (10) may be replaced with a coin (shown in FIG. 1). Omit the slot (1)
7) Rotate the screw to loosen the screw and tighten the nut member (1).
0) and the bolt member (11) may be moved in front of the head (5) along the rail (9), and the nut member (10) may be fastened with the coin and fixed at a desired position.

Reference numeral (12) denotes a hole which passes across the rail (9) when the weight shifter (6) for changing the center of gravity is movably engaged with the rail (9) in the recess (8). There, after passing through the quantum (6), a metal (e.g. aluminum) or synthetic resin padding (13) press-fitted (or inserted adhesive) is Ru. ( 14) is the filling (1
In order to balance the weight with 3), the hole (1
The padding is press-fitted (or inserted and bonded) in 5). Of course, after the two fillings (13) and (14) are press-fitted, the weights (6) do not fall out of the recess (8) to the outside due to those fillings. (16) is a scale previously formed on the upper surface of the head (5), and the position of the hit point of the ball can be determined by this scale. (18) (19)
Is a step for holding the rail (9).

Unlike the above embodiment, the nut member (1
The relationship between 0) and the bolt member (11) may be reversed, and an original minus groove may be formed in the head of the bolt member. The rail (9) formed in the recess (8) of the head (5)
If it is a groove or a ridge, its cross-sectional structure can be set arbitrarily. Further, the minus groove formed on the head of the nut member or the bolt member may be a plus groove. In addition, the bolt member may be a cap bolt, or a heavy collar or washer may be interposed between the root member and the cap.

Unlike the embodiment shown in FIGS. 1 to 4, only one hole formed in the head for passing the weight for changing the center of gravity may be formed substantially at the center in the longitudinal direction of the face surface. The position of the concave portion of the head can be set not only on the back (surface) side but also on the upper side, lower side, obliquely upper side, and front / rear side with respect to the face surface as in the embodiment. Further, the shape of the concave portion, that is, the opening shape of the concave portion can be appropriately set according to the shape of the head.

[0015]

According to the present invention, a concave portion is formed on the back side of the face surface of the head, a specific rail is formed on the inner surface of the concave portion, and a specific weight for changing the center of gravity can be changed on the rail. By fixing the child, the center of gravity of the head can be changed in advance, so that the center point passes through the center of gravity of the head when hitting the ball on the face surface, and the inclination of the head can be prevented. In addition,
By forming the rail on the inner surface of the recess as shown in
Even if a large impact is applied to the weight for changing the
The center of gravity can be prevented from changing after fixing.

[Brief description of the drawings]

FIG. 1 is a side view of a main part showing an embodiment of the present invention.

FIG. 2 is a horizontal sectional view thereof.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is an enlarged perspective view of a weight for changing the center of gravity.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Golf putter 2 Main body part 3 Grip part 4 Shaft part 5 Head 6 Weight body for changing a center of gravity 7 Face surface 8 Depression 9 Rail 10 Nut member 11 Bolt member

Claims (1)

(57) [Claims] 1. A body comprising a body, a grip, and a shaft connecting these two parts. The body has an elongated face, a recess formed on the back side of the face, and an inner surface of the recess. A head having a grooved or ridged rail formed along a substantially longitudinal direction of the face surface, and fixed at a desired position on the rail of the head,
A fixed releasing operation can move along said rail, Ri Do and a refastenable centroid changes for quantum in different positions by a fixing operation, the center of gravity changes for quantum is, the nut member, the nut portion
Opposite side surfaces of grooved or ridged rails screwed to the material
Bolt member pressing or sandwiching the nut member with the nut member
And the head rails the nut member or the bolt member.
Pass it across the rails when mounting on
A golf putter comprising a hole closed by an object.