JPH0613865U - Hollow putter - Google Patents

Abstract

(57) [Abstract] [Purpose] By making the inside of the head body hollow to widen the sweet spot, the toe and heel are well balanced, and the angle of the loft and lie can be adjusted by forcibly bending the neck. An object of the present invention is to provide a hollow putter that can be easily performed without breaking. A hole 5 is bored from the tip to the base end while leaving the base end 4 of the head body 1 solid, and a occluding material 6 is densely mounted on the tip side of the hole to close the inside. While forming a hollow 7,
A neck 2 for fixing the shaft 3 is provided at the base end portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hollow putter of a golf club, and more particularly to a hollow putter having a wide sweet spot and easily adjusting an angle between a loft and a lie.

[0002]

[Prior art]

 Conventionally, there are four types of putters for golf clubs, which are roughly classified according to the structure and shape of the head, that is, a T-type putter, an L-type putter, a D-type putter and a pin-type putter. The pattern head is usually made of metal, and the head main body is formed by casting or forging, and a neck is welded to one end of the head main body to integrate it, or the head main body and the neck are integrated from a metal block by cutting. Are cut out and manufactured.

Also, in order to widen the sweet spot, the head body is provided with a cutout in the central portion of the back surface so that the weight is concentrated on the toe and heel portions to lengthen the face without increasing the weight. . However, in general, by devising the sweet spot, the shape of the head body becomes distorted, impairing the external appearance and restricting the design.

On the other hand, regarding the angle adjustment of the loft and the lie, when the head body and the neck are integrally cut out from the soft iron ingot by cutting, it can be easily done by forcibly bending the neck. However, the manufacturing cost is high due to shaving, and it is not generally adopted. Therefore, the head main body is formed by casting or forging, and the neck is welded and fixed to one end of the head main body. In this case, a mounting hole that does not penetrate vertically is drilled in the head body, the fixing shaft of the neck is fitted into the mounting hole, and the rim of the mounting hole and the base of the fixing shaft are formed on the upper surface of the head body. At present, they are fixed by welding. However, when the base of the fixed shaft of the neck is welded, residual stress due to thermal stress occurs in this weld, and when the neck is forcibly bent to adjust the angle of the loft and lie, this welding is performed. Sometimes the neck was broken at some parts.

[0005]

[Problems to be solved by the device]

 In view of the above-mentioned situation, the present invention is to solve the problem by making the inside of the head body hollow to widen the sweet spot, balance the toe and heel well, and adjust the loft and lie angle. The point is to provide a hollow putter that can be easily bent without forcibly bending it.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention forms a hole from the tip to the base end while leaving the base end portion of the head body as a solid body, and seals a blocker on the tip side of the hole. A hollow pattern was constructed by mounting the valve to make the inside hollow and providing a neck for fixing the shaft at the base end. The neck is made of soft iron, and the fixed shaft of the neck is inserted into the mounting hole penetrating up and down at the base end of the head body, and the tip of the fixed shaft is attached to the edge of the sole side mounting hole. It is preferably welded to. Further, it is more preferable that the head body is formed by forging soft iron.

Further, when a through hole is formed from the tip to the base end of the head main body, and the tip closing member and the base closing member are densely mounted on the tip end side and the base end side of the through hole, respectively, to make the inside hollow. At the same time, a hollow putter was constructed by providing a neck for fixing the shaft at the base end. Then, the neck is made of soft iron, and the fixed shaft of the neck is fitted and inserted into the mounting hole formed by penetrating the proximal end of the head main body through the proximal end blocker and penetrating up and down. Is preferably welded to the rim of the sole side mounting hole. Further, it is more preferable that the head body is formed by drawing or extruding soft iron.

[0008]

[Action]

 The hollow putter of the present invention having the above-mentioned contents has a hole formed from the tip to the base end while leaving the base end portion of the head main body as a solid body, and has an occluding material at the tip end side in the hole. The inside of the head body is hollowed out or a through hole is formed from the tip to the base end of the head body, and the tip blocking member and the base blocking member are packed on the tip side and the base side of the through hole, respectively. By making the inside hollow, the outer size can be increased without increasing the weight of the head body, that is, the face can be set longer to widen the sweet spot, and in the former case, the tip end can be blocked. In the latter case, the weight of the timber and the base end portion, and in the latter case, the weight of the tip end closure material and the base end closure material provides a good toe / heel balance.

Further, the neck is formed of soft iron, and a base end blocker is penetrated into a mounting hole formed vertically through a solid base end of the head main body or through a base end of the head main body. By inserting the fixed shaft of the neck into the mounting hole penetrating vertically and welding the tip of the fixed shaft to the rim of the sole side mounting hole, the neck portion protruding from the head body is Since residual stress due to thermal stress does not occur, even if the neck is forcibly bent to adjust the loft and lie angles, the neck will not break.

Further, when the head body is formed by forging with soft iron, the post-processing becomes extremely easy by rough-processing into a desired shape in advance. Further, when the head body is drawn by soft iron or formed by extrusion molding, the molding material can be cut into a desired length and post-processed to reduce the manufacturing cost.

[0011]

【Example】

 The present invention will be further described in detail with reference to the embodiments shown in the accompanying drawings. FIG. 1 shows a main part of a hollow putter of the present invention, FIGS. 2 and 3 are sectional views thereof, FIG. 4 is an exploded sectional view thereof, in which 1 is a head body, 2 is a neck, 3 is a shaft. Each is shown.

The head body 1 is made of soft iron and formed into a desired shape by forging, and then the base end portion 4 is left solid and a hole 5 is drilled from the tip end to the base end portion 4 by a drilling machine. Then, a closing member 6 made of soft iron is densely mounted on the tip side of the hole 5 to form a hollow portion 7 inside. Further, the base end portion 4 is formed with a mounting hole 8 penetrating from the upper surface to the lower surface. In the figure, 9 is a face, 10 is a sole, 11 is a toe, 12 is a heel, and 13 is a cow. The attachment hole 8 is formed in the base end portion 4 and extends from the cow 13 to the heel 12 with a predetermined lie angle. Further, in this embodiment, the welding hole 14 is formed so that the face 9 communicates with the above-described mounting hole 8.

The neck 2 is made of soft iron, and a fixed shaft 16 that fits into the mounting hole 8 is integrally formed at the tip of the neck portion 15, and the shaft 3 is fixed to the upper end of the neck portion 15. Is formed with a fitting hole 17. The shaft 3 has its tip fitted or bonded to the fitting hole 17 directly or via a connecting shaft, and the connecting portion is covered with a color 18.

Next, in order to manufacture the hollow putter of the present invention, as shown in FIG. 5, first, the closing member 6 is inserted into the distal end side of the hole 5 of the head body 1 to form the hollow portion 7 therein, In that state, after roughly grinding or cutting into a predetermined shape, the rim of the hole 5 and the closing member 6 are welded, and the tip of the fixed shaft 16 of the neck 2 fitted in the mounting hole 8 and The edge of the mounting hole 8 is welded and the side surface of the fixed shaft 16 facing the inside of the welding hole 14 is welded to the edge of the welding hole 14 as shown in FIG. Then, the weld beads 19 that have been built up by welding are ground to be flat, and the entire surface of the head body 1 is finish-polished. Here, the tip of the neck portion 15 of the neck 2 and the head body 1 are merely in contact with each other. Therefore, no residual stress due to the thermal stress of welding occurs in this portion. Then, a marker 20 indicating the center of the sweet spot is engraved on the ko 13, and finally plated. Here, a band-shaped rough surface 21 parallel to the face 9 is formed on the cow 13 so as to diffusely reflect light so that the direction of the face 9 at the time of addressing can be easily determined. The marker 20 can also be displayed by roughening the portion of the face 9 corresponding to the sweet spot.

The putter head P manufactured in this manner is shown in FIGS. 7 is a front view, FIG. 8 is a plan view, FIG. 9 is a left side view, FIG. 10 is a right side view, FIG. 11 is a rear view, and FIG. 12 is a bottom view. Further, FIG. 13 shows a completed hollow putter in which the shaft 3 is fixed to the putter head P and the grip 22 is attached to the shaft 3.

FIG. 14 shows an embodiment in which the rear surface of the upper end portion of the neck portion 15 is bent so as to be in front of or in alignment with the face 9. In this case, since the shaft center of the shaft 3 is located in front of the face 9, even if the sweet spot is slightly removed at the moment of impact, the face 9 is less inclined, and the directionality of the hit ball can be stabilized.

Further, FIGS. 15 and 16 show another embodiment, in which a hollow long raw material made of soft iron and drawn or extruded is cut into an appropriate length to form the head body 1. is there. The head body 1 has a wall thickness of 3 to 4 mm and has a through hole 23 formed from the front end to the base end. Since the cross-sectional shape of the head body 1, that is, the outer shape and the inner shape thereof, can be manufactured into a desired shape, post-processing of the head body 1 becomes easy. A distal end blocking member 24 and a proximal end blocking member 25 having the same cross-sectional shape as the through hole 23 are densely mounted on the distal end side and the proximal end side of the through hole 23, respectively, and a hollow portion 7 is formed in the middle thereof. . Here, the above-mentioned method of closely packing the distal end blocking member 24 and the proximal end blocking member 25 is performed by welding after the insertion as in the above. Further, a mounting hole 8 is formed in the base end portion 4 of the head body 1 so as to penetrate the base end blocker 25 and penetrate vertically. The method of inserting and fixing the fixed shaft 16 of the neck 2 into the mounting hole 8 is also the same as described above.

In any of the above-described embodiments, in the former case, the weights of the closing member 6 and the base end portion 4 are adjusted, and in the latter case, the weights of the distal end closing member 24 and the proximal end closing member 25 are adjusted. By adjusting, the balance between the toe 11 and the heel 12 can be adjusted, and the weight of the head body 1 is unevenly distributed between the toe 11 and the heel 12, so that the sweet spot can be widened. Further, by adjusting the wall thickness of the face 9, the repulsive force can be adjusted.

[0019]

[Effect of device]

 According to the hollow putter of the present invention as described above, since the hollow portion is formed in the center of the head body and the weight is unevenly distributed between the toe and the heel, the sweet spot is widened and the balance is improved. The swing is stable, and the direction of the hit ball and the rolling distance are stable. Further, the balance between the toe and the heel can be adjusted by the weight distribution between the occluding material and the proximal end portion or the weight distribution between the distal end occluding material and the proximal end occluding material.

Further, the neck is made of soft iron, and its fixed shaft is fitted into the mounting hole of the head main body, and the tip of the fixed shaft is welded to the rim of the sole side mounting hole to project from the head main body. Since residual stress due to thermal stress at the time of welding does not occur in the welded neck, the neck can be forcibly bent to easily adjust the loft and lie angles. There is nothing to do.

Further, when the head body is formed by forging with soft iron, it can be preliminarily formed into a desired shape, so that post-processing becomes easy. In addition, when the head body is drawn or extruded with soft iron, the long material can be cut into appropriate lengths to form the head body, which is suitable for mass production and enables cost reduction. The cross-sectional shape of the hollow portion can be set to an appropriate shape other than circular.

[Brief description of drawings]

FIG. 1 is a front view of a main part of a hollow putter according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is an exploded front view showing a cross section of the head main body.

FIG. 5 is a front view of an essential part showing a partially cross-sectional view of an assembled state.

FIG. 6 is a front view of the main part, similarly showing the assembled state.

FIG. 7 is a front view of a putter head.

FIG. 8 is a plan view of the same.

FIG. 9 is a left side view of the same.

FIG. 10 is a right side view of the same.

FIG. 11 is a rear view of the same.

FIG. 12 is a bottom view of the same.

FIG. 13 is an overall perspective view of the hollow putter of the present invention.

FIG. 14 is a right side view of a putter head showing another embodiment of the neck.

FIG. 15 is a front view of a main part showing another embodiment of the hollow putter of the present invention.

FIG. 16 is a left side view of the putter head.

[Explanation of symbols]

 1 Head Main Body 2 Neck 3 Shaft 4 Base End 5 Hole 6 Closing Material 7 Hollow Part 8 Mounting Hole 9 Face 10 Sole 11 Toe 12 Heel 13 Cow 14 Welding Hole 15 Neck 16 Fixing Shaft 17 Fitting Hole 18 Color 19 Weld Bead 20 Marker 21 Rough Surface 22 Grip 23 Through Hole 24 Tip Closing Material 25 Base End Closing Material

Claims (6)

[Scope of utility model registration request] 1. A hollow body is formed by forming a hole from the tip to the base end while leaving the base end of the head main body as a solid body, and densely packing a blocker on the tip side of the hole. A hollow putter characterized in that a neck for fixing the shaft is provided at the base end of the putter. 2. The neck is made of soft iron, and a fixed shaft of the neck is fitted into a mounting hole vertically provided at a base end portion of a head body, and a tip of the fixed shaft is attached to a sole-side mounting hole. The hollow putter according to claim 1, which is welded to the rim of the mouth. 3. The hollow putter according to claim 1, wherein the head body is formed by forging soft iron. 4. A through hole is formed from the front end to the base end of the head main body, and a tip closing member and a base closing member are densely mounted on the front end side and the base end side of the through hole to make the inside hollow. A hollow putter characterized in that a neck for fixing the shaft is provided at a base end portion. 5. The neck is formed of soft iron, and a fixed shaft of the neck is fitted into a mounting hole formed by penetrating a base end blocking member through a base end portion of a head main body, and the fixed shaft. The hollow putter according to claim 4, wherein the front end of the hollow putter is welded to the rim of the sole-side mounting hole. 6. The hollow putter according to claim 4, wherein the head body is formed by drawing or extruding soft iron.