Putter head for golf, and putter for golf attached with the putter head for golf

Abstract

To solve a problem that a conventional putter head is difficult to control a ball, is easy to be corroded, and thus has low reliability.SOLUTION: A putter head for golf is attached to a distal end side of a shaft of a putter for golf. The putter head for golf includes: a head body; and a neck part attached to an upper surface of the head body part, for attaching the shaft. The head body part includes: a core part formed of a metal member; and a covering part formed of a resin covering the entire outer surface of the core part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a golf putter head and a golf putter equipped with the golf putter head. [Background technology]

[0002] Conventional golf putter heads are made of metal, and there are known putter faces for hitting a golf ball, such as a metal putter face and a putter face formed by attaching a synthetic resin to the face of a metal putter head.

[0003] Patent Document 1 (Utility Model Registration No. 3156719) discloses a golf putter head in which a face forming member made of alternating layers of resin softer than the surface of a golf ball and harder resin arranged along the ball striking surface is inserted into the center of the ball striking surface (face). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3156719 Summary of the Invention [Problem to be solved by the invention]

[0005] Conventional metal putter heads have a high restitution coefficient, which makes it difficult to control the golf ball. In addition, the metal used as the material has the problem of being easily rusted and deteriorated. In addition, in the golf putter head described in Patent Document 1, a resin is attached and fixed to the face surface of the metal putter head body using an adhesive. In this way, when a resin is attached and fixed to the face surface of the metal putter head body, problems such as peeling of the resin may occur. What is needed is a highly reliable golf putter head that allows easy control when hitting a golf ball and reduces rust and peeling of the resin. [Means for solving the problem]

[0006] The golf putter head according to the present invention is a golf putter head to be attached to the tip side of the shaft of a golf putter, and includes a head body and a neck portion attached to the upper surface of the head body for attaching the shaft. The head body has a core portion made of a metal member and a resin covering portion that covers the entire outer surface of the core portion.

[0007] In the golf putter head according to the present invention, the resin covering covers the entire outer surface of the core made of a metal member, so that the core can be effectively prevented from rusting. Also, by covering the entire outer surface of the core with the resin covering, it is possible to prevent the covering from peeling off from the core. Also, the face surface that hits the golf ball is made of resin, so that it has an appropriate restitution coefficient with respect to the golf ball. Therefore, it is easy to control when hitting the golf ball.

[0008] In addition, in the golf putter head according to the present invention, the head main body may have a main body support part having an elongated shape extending in a first direction, and a hitting surface part provided at a tip side in the extending direction of the main body support part, and a face surface for hitting a golf ball is formed on the hitting surface part and extends in a second direction intersecting with the first direction. By using a golf putter equipped with this golf putter head, the resistance of the grass can be reduced, and the golf ball can be hit even from the rough of the golf course.

[0009] In addition, the golf putter head according to the present invention may be characterized in that a protrusion is provided at an end of the striking surface in the second direction, the protrusion extends the face surface in the second direction, and the surface of the protrusion is coplanar with the face surface. By providing a protrusion at the end of the striking surface in the second direction so that the surface of the protrusion is coplanar with the face surface and by forming a structure in which the face surface is expanded in the lateral direction, it becomes easier to see the ball when hitting the golf ball.

[0010] In the golf putter head according to the present invention, the core portion of the head body is provided with a neck fixing hole portion for attaching the neck portion, The neck fixing hole portion may have a cross-sectional shape that is elliptical and long in the second direction and has a predetermined depth, and the neck portion is inserted in an obliquely inclined state until it reaches the bottom of the neck fixing hole portion and is supported at the open top of the neck fixing hole portion, and is fixed to the head main body portion by pouring resin into the neck fixing hole portion while maintaining the inclined state at a predetermined angle.

[0011] In the golf putter head according to the present invention, the neck is inserted into the neck fixing hole in an oblique state and is supported in the tilted state by the open top of the neck fixing hole. With the neck inserted in the neck fixing hole, resin can be poured into the neck fixing hole, thereby fixing the neck to the core so that the angle between the neck and the surface of the head body is a predetermined angle.

[0012] In addition, in the golf putter head according to the present invention, the neck portion may have a hollow portion and a slit portion at the tip side, a depth adjustment member is attached to the upper end side of the hollow portion, and when resin is poured into the neck fixing hole portion, the resin is poured into the hollow portion of the neck portion from the slit portion and filled with resin up to the position where the depth adjustment member is attached, thereby fixing the neck portion to the head body portion. The insertion depth of the shaft inserted and fixed in the inner hole of the neck member can be determined depending on the position of the depth adjustment member. Also, since the resin is filled up to the hole portion of the neck portion through the slit provided in the neck portion, the neck portion can be fixed to the core portion with greater strength.

[0013] A golf putter according to the present invention can have the golf putter head described above and a shaft attached to the neck portion. Effect of the Invention

[0014] The golf putter head according to the present invention comprises a head body and a neck portion attached to the upper surface of the head body for attaching a shaft, the head body having a core made of a metal member and a resin covering portion covering the entire outer surface of the core. Since the resin covering portion covers the entire outer surface of the core made of a metal member, the core can be effectively prevented from rusting. Furthermore, since the resin covering portion covers the entire outer surface of the core, the covering portion can be prevented from peeling off from the core. Furthermore, since the face surface that hits the golf ball is also made of resin, it has an appropriate restitution coefficient with respect to the golf ball. Therefore, it is easy to control the hitting of the golf ball. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a schematic perspective view of a golf putter head according to the present embodiment. [Diagram 2]Fig. 2 is a diagram for explaining a golf putter head according to this embodiment, Fig. 2(a) is a top view of the golf putter head, and Fig. 2(b) is a diagram showing a schematic front view of the golf putter head. [Diagram 3] Fig. 3 is a diagram for explaining a golf putter head according to this embodiment, Fig. 3(a) is a side view of the golf putter head, and Fig. 3(b) is a diagram showing a schematic bottom view of the golf putter head. [Figure 4] FIG. 4 is a diagram showing a schematic view of a core portion of a golf putter head according to this embodiment. [Diagram 5] FIG. 5 is a diagram for explaining the state before the neck portion is fixed with resin to the neck fixing hole portion provided on the upper surface side of the core portion of the golf putter head according to this embodiment. [Figure 6] FIG. 6 is a schematic cross-sectional perspective view taken along line VI-VI in FIG. [Figure 7] Fig. 7 is a diagram for explaining the neck portion. Fig. 7(a) shows a front view of the neck portion. Fig. 7(b) shows a cross-sectional view taken along line VII-VII in Fig. 7(a). [Figure 8] FIG. 8 is a schematic perspective view of a golf putter according to the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, preferred embodiments of a golf putter head and a golf putter according to the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicated explanations will be omitted. In the description, terms indicating directions such as "upper", "lower", "front", and "back" are expedient terms based on the state shown in the drawings.

[0017] Fig. 1 shows a schematic perspective view of a golf putter head according to this embodiment. Fig. 2 and Fig. 3 show schematic views of the golf putter head according to this embodiment. In Fig. 2, Fig. 2(a) and Fig. 2(b) show a top view and a front view of the golf putter head, respectively. In Fig. 3, Fig. 3(a) and Fig. 3(b) show a side view and a bottom view of the golf putter head, respectively.

[0018] 1, a golf putter head 1 can have a head body 2 extending in a first direction, and a neck portion 3 attached to the upper surface side of the head body 2. By attaching a shaft to the neck portion 3, the golf putter head 1 can be supported.

[0019] The head main body 2 can have an internal core 4 and a covering 5 that covers the outer surface of the core 4. The core 4 can be made of a metal material such as iron. The covering 5 can be made of a resin material. As the resin material, for example, a polyamide synthetic resin such as nylon 6 can be used. In addition, clay or the like can be mixed into the resin material as an inorganic filler. As the clay, layered silicate can be used. In addition, a pigment such as aluminum can be mixed.

[0020] The covering portion 5 covers the core portion 4 over almost the entire outer surface of the core portion 4, except for the region where the neck portion 3 is attached. As will be described in detail later, the covering portion 5 is formed to have almost the same thickness throughout, except for the protruding portion 11. The thickness of the covering portion 5 can be about 1 mm to 7 mm. In this embodiment, the thickness of the covering portion 5 is about 3.5 mm.

[0021] The head body 2 may have a body support part 6 extending in a first direction, and a striking surface part 7 provided at the tip side in the extension direction of the body support part 6. The rear end side of the body support part 6 facing the striking surface part 7 may have a pointed tip. In this embodiment, the neck part 3 is provided on the surface side of the body support part 6.

[0022] 1, the main body support part 6 extends in a first direction and may have a vertically elongated shape with a substantially rectangular cross-sectional shape. The length of the main body support part in the extension direction (first direction) may be approximately 100 mm. The length of the striking surface part 7 may be approximately 13 mm to 15 mm. The thickness of the main body support part 6 may be approximately 30 mm.

[0023] Since the main body support section 6 extends in the first direction and has a vertically elongated shape, the resistance of the grass can be reduced when hitting a golf ball using a golf putter equipped with the golf putter head 1 of this embodiment. Generally, putters are used when hitting a golf ball on a green, but by using a golf putter equipped with the golf putter head 1 of this embodiment, the resistance of the grass can be reduced, so that a golf ball can be hit even from the rough of a golf course (an area outside the fairway where uncropped grass or weeds grow). As a result, the putter can be moved smoothly to hit a golf ball in the rough area and reliably aim for the cup.

[0024] A face surface 10 for hitting a golf ball is formed on the front side of the hitting surface portion 7 provided on the front side in the extension direction (first direction) of the main body support portion 6. The face surface 10 extends in a second direction intersecting with the first direction.

[0025] In addition, protrusions 11 are provided at both ends of the striking surface 7 in the second direction. The face surface 10 provided on the striking surface 7 extends to the front side of the protrusions 11. In other words, the face surface 10 of the striking surface 5 and the surface of the protrusions 11 are coplanar and are formed to be substantially flush with each other.

[0026] The face surface 10 is provided with a roughly semicircular hitting portion 12. The hitting portion 12 is provided with a plurality of parallel concave and convex grooves extending in the vertical direction. By providing the grooves, it is possible to prevent the golf ball from slipping on the face surface when hitting the ball, and to hit the ball in the desired direction. The depth of the grooves can be about 0.1 mm to 0.7 mm. In this embodiment, the depth of the grooves of the hitting portion 12 is about 0.5 mm. The interval between the grooves can be about 0.5 mm.

[0027] Furthermore, the protrusions 11 provided at both ends of the striking surface 7 in the second direction can be made of the same resin material as the material forming the covering 5. The protrusions 11 do not have a core 4. Referring to FIG. 1, the rear side of the protrusions 11 can have a shape that curves toward the tip as it moves outward. By providing the protrusions 11 and making the face surface 10 have a structure that expands laterally, it becomes easier to see the ball when hitting it.

[0028] In addition, the rear side of the protrusion 11 has a shape that curves toward the tip as it goes outward, which also reduces the resistance of the grass when the golf putter to which the golf putter head 1 of this embodiment is attached is backswinged. In particular, the resistance of the grass in the rough can be reduced when hitting a golf ball from the rough.

[0029] Also, referring to FIG. 3(b), a guide groove 13 is formed on the bottom surface of the head body 2 in a groove shape extending in the extension direction (first direction) of the golf putter head 1. In this embodiment, the guide groove 13 is formed on the bottom surface of the head body 2 from the tip end side to the rear end side of the head body across the body support part 6 and the hitting surface part 7. The width of the guide groove 13 is about 3 mm, and the depth of the groove is about 1 mm. By providing the guide groove 13 on the bottom surface of the head body, the resistance of the grass in the rough can be reduced when hitting a golf ball from the rough of a golf course. Similarly, the resistance of the grass in the rough can be reduced when the putter is backswung. Therefore, by using the golf putter head 1 of this embodiment, the effect of the grass in the rough can be reduced when swinging the putter, so that the golf ball can be easily hit even from the rough. Also, by providing the guide groove 13, the groove of the guide groove 13 moves in a fixed direction along the rough grass and can guide the golf putter head 1, thereby reducing the wobble of the golf putter head 1. As a result, more accurate shots can be made.

[0030] Next, the core 4 of the golf putter head 1 according to this embodiment will be described in detail. Fig. 4 shows a schematic diagram of the core 4 of the golf putter head 1 according to this embodiment.

[0031] As shown in FIG. 4, the core 4 can be elongated in the first direction, have a vertically elongated quadrangular prism shape with a substantially rectangular cross section, and have a pointed rear end. The upper surface of the core 4 is provided with a neck fixing hole 20 for inserting and fixing the neck 3. As shown in FIG. 4, the core 4 can be composed of a core body 21 and a weight adjustment part 22 incorporated in the back surface of the core body 21. In this embodiment, a groove is formed in the area of ​​the core body 21 where the weight adjustment part 22 is incorporated, and the weight adjustment part 22 is press-fitted and fixed in this groove to form the core 4. The core body 21 can be made of a metal with a relatively low specific gravity, such as aluminum, and the weight adjustment part 22 can be made of a metal with a relatively high specific gravity, such as iron or stainless steel. The core 4 can also be made of one type of metal material.

[0032] In addition, since the rear end side of the core 4 has a pointed shape, the rear end face side of the main body support part 4, which has the surface of the core 4 covered with the covering part 5, can also have a similar protruding shape. Specifically, the rear end face can have a surface shape that curves upward toward the rear. In addition, the side surface side can have a surface shape that inclines inward toward the rear. As described above, when a golf ball is hit from the rough of a golf course using a golf putter equipped with the golf putter head 1 of this embodiment, the rear end face side of the main body support part 4 has the above-mentioned protruding shape, so that the resistance of the grass in the rough during the backswing of the putter can be reduced. Therefore, by using the golf putter head 1 of this embodiment, a golf ball can be easily hit even from the rough.

[0033] Next, the neck portion 3 of the golf putter head 1 of this embodiment will be described in detail. Fig. 5 is a diagram for explaining the state before the neck portion is fixed with resin to the neck fixing hole 20 provided on the upper surface side of the core of the golf putter head. Fig. 6 is a schematic cross-sectional view taken along line VI-VI in Fig. 5. Fig. 5 shows the state in which the neck portion 3 is inserted into the neck fixing hole 20 provided on the upper surface side of the core 4, before it is covered with a resin material.

[0034] Referring to FIG. 4, the neck fixing hole 20 has an oval shape that is long in a second direction intersecting with the extension direction (first direction) of the core 4. As shown in FIG. 5 and FIG. 6, the neck 3 is inserted in a state inclined obliquely toward the back side until it reaches the bottom of the neck fixing hole 20, and in the inclined state, the neck 3 is supported by the opening top of the neck fixing hole 20. At this time, the length of the oval of the neck fixing hole 20 in the second direction and the depth of the hole of the neck fixing hole 20 are set so that the angle between the neck 3 and the surface of the head main body 2 is a predetermined angle. The length (width) of the oval in the first direction is set to be approximately the same as or slightly larger than the outer diameter of the neck 3. In this embodiment, the length of the oval of the neck fixing hole 20 in the second direction is about 17 mm. The outer diameter (diameter) of the neck 3 is about 12 mmφ, and the length (width) of the oval in the first direction is about 15 mm. The depth of the neck fixing hole 20 is about 18 mm. The angle between the neck 3 and the surface of the head body 2 is set to about 20 degrees. When fixing the neck 3 to the core 4, the neck 3 is inserted into the neck fixing hole 20, and a resin material is poured into the neck fixing hole 20 to cover the outer surface of the core 4 by insert molding (injection molding), for example, to fix the neck 3 to the core 4. In this manner, in this embodiment, the neck 3 is inserted into the neck fixing hole 20, and the resin material is poured into the neck fixing hole 20 to fix the neck 3 to the core 4 so that the angle between the neck 3 and the surface of the head body 2 is a predetermined angle.

[0035] Furthermore, when fixing the neck portion 3 to the core portion 4 with a resin material, the neck portion 3 can be held with a jig (not shown), inserted into the neck fixing hole 2, and fixed in a state in which the angle between the neck portion 3 and the surface of the head body portion 2 is adjusted, by pouring the resin material into the neck fixing hole 20. In this embodiment, the neck portion 3 is inserted into the neck fixing hole 2 while being inclined so as to be inclined in the second direction, and is covered with the resin material while maintaining this state. As a result, when covering with the resin material, the resin can penetrate over the entire outer circumference of the neck portion 3 and fix it.

[0036] FIG. 7 shows a diagram for explaining the neck portion 3. FIG. 7(a) shows a front view of the neck portion before being fixed to the core portion 4. FIG. 7(b) shows a cross-sectional view taken along the line VII-VII in FIG. 7(a). As shown in FIG. 7, the neck portion 3 has a pipe-like shape, and a depth adjustment member 25 is press-fitted and fixed in the hollow inner hole of the neck portion 3. The insertion depth of the shaft inserted and fixed in the inner hole of the neck member 3 is determined by the position of this depth adjustment member 25. Also, a screw (female screw) for fixing the shaft is formed on the upper side of the neck portion 3 (the side where the shaft is inserted).

[0037] Meanwhile, a slit penetrating the hole is provided on the underside of neck portion 3 (the side opposite to the side where the shaft is inserted). The slit formed in neck portion 3 extends in the up-down direction. When fixing neck portion 3 to core portion 4, the resin material poured into neck fixing hole 20 with neck portion 3 inserted into it passes through the slit provided on the underside of neck portion 3 and fills up to the hole of neck portion 3, thereby more strongly fixing neck portion 3 to core portion 4.

[0038] In this embodiment, the resin material is poured into the neck fixing hole 20 by injection molding. Therefore, when the neck portion 3 is fixed to the core portion 4, the depth adjustment member 25, which is press-fitted and fixed in the hollow inner hole of the neck portion 3, may be pressed by the injection pressure of the resin material and move upward. In order to avoid this, during injection molding, an adjustment presser (not shown) is inserted into the inner hole on the upper side (the side where the shaft is inserted) of the neck portion 3, and the adjustment presser is abutted against the top of the depth adjustment member 25. While holding the adjustment presser with a jig (not shown) to maintain this state, the resin material is poured in by injection molding. After the pouring of the resin material by injection molding is completed, the adjustment presser is removed from the inner hole on the upper side (the side where the shaft is inserted) of the neck portion 3.

[0039] Next, a golf putter 100 equipped with a golf putter head 1 of this embodiment will be described with reference to FIG. 8. FIG. 8 is a schematic perspective view of the golf putter according to this embodiment. As shown in FIG. 8, the golf putter 100 has a tip end of a shaft 101 attached to a neck portion 3 of the golf putter head 1. In this embodiment, a male screw is formed at the tip of the shaft 101, and the shaft 101 can be fixed to the golf putter head 1 by screwing the male screw at the tip end of the shaft into a female screw formed in an inner hole of the neck portion 3. The shaft 101 is attached at an angle of about 20 degrees with respect to the surface of the golf putter head 1. [Explanation of symbols]

[0040] 1. Golf putter head 2 Head body 3 Neck 4 core 5 Covering section 6 Main body support part 7 Hitting surface part 10 Face 11 Protrusion 12 Striking section 13 Guide groove 20 Neck fixing hole 21 Core body 22 Weight adjustment section 22 25 Depth adjustment member 100 Golf putters 101 Shaft

Claims

1. A golf putter head attached to a tip end side of a shaft of a golf putter, A head main body portion, a neck portion attached to an upper surface of the head body portion and for attaching the shaft; The head body comprises a core made of a metal member and a resin covering that covers the entire outer surface of the core.

2. the head body portion has a body support portion having an elongated shape extending in a first direction and a striking surface portion provided on a tip side of the body support portion in the extension direction, 2. The golf putter head according to claim 1, wherein the striking surface portion has a face surface for striking a golf ball, the face surface being formed to extend in a second direction intersecting with the first direction.

3. a protrusion is provided on an end of the striking surface in the second direction, 3. The golf putter head according to claim 2, wherein the protrusion extends from the face surface in the second direction, and a surface of the protrusion is coplanar with the face surface.

4. the core portion of the head body portion is provided with a neck fixing hole portion for attaching the neck portion, the neck fixing hole has a cross-sectional shape that is an ellipse that is long in the second direction and has a predetermined depth, 3. A golf putter head as described in claim 1 or claim 2, characterized in that the neck portion is inserted in an obliquely tilted state until it reaches the bottom of the neck fixing hole portion and is supported by the open top of the neck fixing hole portion, and is fixed to the head main body portion by pouring resin into the neck fixing hole portion while maintaining the neck portion tilted at a predetermined angle.

5. The neck portion has a hollow portion and a slit portion on a tip side thereof, A depth adjustment member is attached to the upper end side of the hollow portion, The golf putter head of claim 4, characterized in that when resin is poured into the neck fixing hole portion, the resin is poured from the slit portion into the hollow portion of the neck portion, filling the resin up to the position where the depth adjustment member is attached, thereby fixing the neck portion to the head main body portion.

6. A golf putter comprising the golf putter head according to any one of claims 1 to 5 and a shaft attached to the neck portion.

Images