JP2023144092A - Golf club and insert for golf club - Google Patents

Abstract

To improve a hitting feel regarding a golf club and an insert for the golf club.SOLUTION: A golf club 1 of the disclosure comprises a head 3 that has a hitting surface 2 for hitting a golf ball, a shaft 5 that is formed like a shaft, a hosel 4 for connecting one end of the shaft 5 and the head 3 together, and a grip 6 that is provided at the other end of the shaft 5 so as to be held by a user. The hosel 4 is formed integrally with the head 3 and the shaft 5 in an unreplaceable state.SELECTED DRAWING: Figure 1

Description

The present invention relates to a golf club for hitting a golf ball and a golf club insert that is detachably installed in the golf club.

Conventionally, golf clubs such as woods, irons, hybrids, utilities, and putters have been known in which a shaft provided with a grip and a head are connected by a hosel. The hosel is detachably fixed to, for example, a shaft or a head. Such a structure makes it easy to replace the shaft and head (see Patent Documents 1 and 2).
Furthermore, golf clubs without a hosel, that is, golf clubs in which a shaft with a grip and a head are connected, are also generally known.

Japanese Patent Application Publication No. 2021-058337 Japanese Patent Application Publication No. 2014-036894

In the case of a golf club with a hosel, the vibrations generated in the head when the golf ball is hit are transmitted to the palm of the user (golfer) holding the grip through the shaft, and are recognized as part of the feel of the golf club. be done. On the other hand, a hosel interposed between the shaft and the head can act to inhibit the transmission of such vibrations. Therefore, a golf club with a hosel formed thereon has a problem in that it is difficult to obtain a good hitting feel compared to a golf club without a hosel. Note that the term "hitting feel" refers to the feel or shot feeling that a user feels when hitting a golf ball. In general, the feeling of hitting includes not only physical vibrations, but also the sensory feel of operation, such as the feel of hitting, a sense of control, and a sense of accomplishment.
Further, even in golf clubs that do not have a hosel, there is a problem that it is difficult to obtain a good feel on impact unless some kind of improvement is made.

One of the objects of the present invention is to provide a golf club and a golf club insert that are invented in light of the above-mentioned problems and are capable of improving the feel on impact. In addition, this purpose is not limited to this purpose, and it is also possible to achieve other effects derived from each configuration shown in "Details for Carrying Out the Invention" that are not obtained with conventional techniques. It can be positioned as a purpose.

This matter can be realized as the embodiments or application examples disclosed below. The disclosed golf club and golf club insert solve at least some of the above problems.
(1) The disclosed golf club includes a head having a hitting surface for hitting a golf ball, a shaft formed in an axial shape, a hosel connecting one end of the shaft to the head, and the other end of the shaft. the hosel is irreplaceably formed integrally with the head and the shaft.

(2) It is preferable that the hosel is formed into a plate shape that extends in a plane direction parallel to the striking surface and has a constant thickness.
(3) Preferably, the hosel is formed into a rectangular flat plate shape.
(4) It is preferable that the hosel is formed into a bent plate shape that is curved so that the side closer to the hitting surface is inward in a longitudinal section perpendicular to the hitting surface.

(5) Preferably, the hosel includes a built-in vibration sensor that detects vibrations generated on the striking surface.
(6) It is preferable that the hosel has a hollow first cavity inside. Note that it is preferable to form an opening for transmitting the reverberated sound inside the hosel to the outside of the hosel.

(7) It is preferable that the shaft has a second hollow part inside that is formed to be hollow and communicates with the first hollow part.
(8) It is preferable that the grip has a third cavity formed in the interior that communicates with the second cavity.
(9) Preferably, the grip is formed integrally with the shaft.

(10) It is preferable that the grip incorporates a vibration device that vibrates or a speaker that emits sound based on information detected by the vibration sensor.
(11) Vibration transmission that is formed in an elongated shape, has one end fixed to the head, is built into the second cavity part and the third cavity part, and transmits vibrations generated on the striking surface to the grip. It is preferable that the vibration transmitting member includes a mounting member that is provided inside the third cavity and connects the other end of the vibration transmission member and the grip.

(12) It is preferable that the mounting member is provided so that its position can be adjusted in the extending direction of the grip.
(13) It is preferable that the vibration transmission member is composed of a wire, a string, a rod member, or a linear elastic member.
(14) It is preferable that the mounting member is formed in a membrane shape that extends in a direction crossing the extending direction of the grip.

(15) Preferably, the vibration transmission member includes a mass member for amplifying vibration.
(16) It is preferable that the head has a hollow fourth cavity communicating with the first cavity.
(17) It is preferable that an auxiliary vibration transmission member is provided inside the fourth cavity and transmits vibrations generated on the striking surface to the vibration transmission member.

(18) Preferably, the head includes a weight member for changing the position of the center of gravity of the head.
(19) A drive source for moving the weight member, wherein the weight member is provided inside a hollow cylindrical recess formed in the upper surface of the head, and the drive source is provided on an inner circumferential surface of the recess. It is preferable that the weight member is rotationally driven along.

(20) The disclosed golf club is a golf club comprising a shaft, a head provided at one end of the shaft and having a golf ball hitting surface, and a grip provided at the other end of the shaft. , the shaft has a hollow shaft cavity therein, and the grip has a grip cavity therein that is hollow and communicates with the shaft cavity, and is formed in an elongated shape. a vibration transmission member having one end fixed to the head, built in the shaft cavity and the grip cavity, and transmitting vibrations generated at the striking surface to the grip; and a vibration transmission member provided inside the grip cavity. and a mounting member that connects the other end of the vibration transmission member and the grip.

(21) It is preferable that the mounting member is provided so that its position can be adjusted in the extending direction of the grip.
(22) It is preferable that the vibration transmission member is composed of a wire, a string, a rod member, or a linear elastic member.
(23) It is preferable that the mounting member is formed in a membrane shape that is expanded in a direction intersecting the extending direction of the grip.
(24) Preferably, the vibration transmission member includes a mass member for amplifying vibration.

(25) The head has a hollow head cavity communicating with the shaft cavity, and is provided inside the head cavity to transmit vibrations generated on the striking surface to the vibration transmission member. It is preferable to include an auxiliary vibration transmission member for transmitting the vibration.
(26) The disclosed golf club is a golf club comprising a shaft, a head provided at one end of the shaft and having a golf ball hitting surface, and a grip provided at the other end of the shaft. , the shaft has a hollow shaft cavity therein, and the grip has a grip cavity therein that is hollow and communicates with the shaft cavity, and is formed in an elongated shape. a vibration transmission member having one end fixed to the head, built in the shaft cavity and the grip cavity, and transmitting vibrations generated at the striking surface to the grip; and a vibration transmission member provided inside the grip cavity. and a mounting member connecting the other end of the vibration transmission member and the grip, the vibration transmission member containing a magnetic material, and detecting the vibration transmitted by the vibration transmission member. A first electrically transducing pickup is provided adjacent to the vibration transmission member.

(27) It is preferable that the mounting member is provided so that its position can be adjusted in the extending direction of the grip.
(28) It is preferable that the attachment member is formed in a membrane shape that extends in a direction intersecting the extending direction of the grip.
(29) Preferably, the vibration transmission member includes a mass member for amplifying vibration.

(30) The head has a hollow head cavity communicating with the shaft cavity, and is provided inside the head cavity to transfer vibrations generated on the striking surface to the vibration transmission member. The auxiliary vibration transmission member is configured to contain a magnetic material, and a second pickup that detects the vibration transmitted by the auxiliary vibration transmission member and converts it into an electric signal transmits the auxiliary vibration. Preferably, it is provided close to the transmission member.

(31) It is preferable that a first amplifier for amplifying the electrical signal detected by the first pickup is provided inside or outside the golf club.
(32) It is preferable that a second amplifier for amplifying the electrical signal detected by the second pickup is provided inside or outside the golf club.

(33) The disclosed golf club is a golf club comprising a shaft, a head provided at one end of the shaft and having a golf ball hitting surface, and a grip provided at the other end of the shaft. , an insert is provided on the hitting surface, and includes an insert made of a planar vibrating member formed in a planar shape that vibrates in a planar manner upon collision with the golf ball and applies a reaction force to the golf ball.

(34) It is preferable that the planar vibration member has a net member formed by weaving strings into a net shape inside the frame.
(35) Preferably, the string includes at least one of natural fibers, synthetic fibers, and elastic fibers.
(36) It is preferable that the plane vibration member has a membrane member attached to the striking surface.

(37) Preferably, the membrane member includes at least one of a metal plate, a resin plate, a rubber membrane, and a leather membrane.
(38) It is preferable that the planar vibration member is removably attached to the head.
(39) Preferably, the head has a head cavity formed with a hollow interior.
(40) It is preferable that the head has an in-head wire stretched inside the head cavity and connected to the planar vibration member via a connecting wire.

(41) It is preferable that the shaft has a shaft cavity formed with a hollow interior.
(42) It is preferable that the head has an in-shaft wire stretched inside the shaft cavity and connected to the in-head wire.
(43) Preferably, the wire in the shaft is stretched so as to connect the grip and the wire in the head, and transmits the vibration of the planar vibration member to the grip.

(44) The disclosed golf club includes a head having a hitting surface for hitting a golf ball, a shaft formed in an axial shape, a hosel connecting one end of the shaft to the head, and the other end of the shaft. A grip provided on the head and held by the user, and a fin or a plate member provided between the head and the hosel.
(45) The disclosed golf club includes a head having a hitting surface for hitting a golf ball, a shaft formed in an axial shape, and a grip provided at the other end of the shaft and held by a user. , a fin or a plate member is provided between the head and one end of the shaft.

(46) It is preferable that an illumination member is arranged on the top surface of the above-mentioned fin or plate member in a planar or chain shape.
(47) It is preferable that fins are provided upright on the upper surface of the head.
(48) It is preferable that a lighting member is arranged on the top surface of the fin in a planar or chain shape.

(49) It is preferable that an electric display member is provided on the upper surface of the head.
(50) The display member may be a liquid crystal display capable of displaying at least one information of the launch direction of the golf ball and impact data when the golf ball hits the hitting surface according to an external instruction. preferable.
(51) When launching the golf ball, a controller having a rhythm box function that notifies the rhythm, and a rhythm sound and a synthetic voice generated by one of the rhythm box function and the synthetic voice generation function of the controller. It is preferable that a speaker for outputting one of the two be provided.
(52) It is preferable that an adapter suitable for the user's physique and batting form be removably attached to the lower surface of the head.

(53) The disclosed insert for a golf club includes a shaft, a head provided at one end of the shaft and having a golf ball hitting surface, and a grip provided at the other end of the shaft. The insert is removably attached to a surface, and includes a surface vibrating member formed in a planar shape that vibrates in a surface upon collision with the golf ball and applies a reaction force to the golf ball.
(54) It is preferable that the planar vibration member of this insert has a net member formed by weaving strings into a net shape inside the frame.

(55) Preferably, the string of this insert includes at least one of natural fibers, synthetic fibers, and elastic fibers.
(56) It is preferable that the planar vibration member of this insert has a membrane member attached to the striking surface.
(57) Preferably, the membrane member of this insert includes at least one of a metal plate, a resin plate, a rubber membrane, and a leather membrane.
(58) It is preferable that the planar vibrating member of this insert is configured as a vibrating member having a gong structure provided in the head with a fishing structure.

According to the disclosed golf club, by providing the hosel integrally between the head and the shaft in a non-replaceable manner, the vibrations generated in the head when hitting a golf ball can be efficiently transmitted to the shaft, and the hosel is integrally provided between the head and the shaft. It can improve the feeling.

Further, according to the disclosed golf club, even without providing a hosel, by applying various measures to the golf club, vibrations generated in the head when hitting a golf ball can be efficiently transmitted to the shaft. It can improve the feel of hitting.

Further, according to the disclosed insert for a golf club, in a golf club that does not have a hosel, by providing the insert on the head hitting surface, vibrations generated in the head when hitting can be efficiently transmitted to the shaft, It can improve the feel of hitting.

(A) is a perspective view illustrating a golf club according to the first embodiment, and (B) is a side view illustrating a modification of the golf club according to the first embodiment. (A) to (C) are perspective views for explaining the types of heads of the golf club according to the first embodiment. (A) to (F) are perspective views for explaining modified examples of the hosel of the golf club according to the first embodiment. (A) to (D) are perspective views for explaining modified examples of the hosel of the golf club according to the first embodiment. (A) to (E) are side views for explaining modified examples of the hosel of the golf club according to the first embodiment. (A) and (B) are cross-sectional views illustrating the internal structure of a golf club as a first embodiment. (A) and (B) are sectional views for explaining a modified example of the golf club as the first embodiment. (A) and (B) are sectional views for explaining a modified example of the golf club as the first embodiment. (A) and (B) are sectional views for explaining a modified example of the golf club as the first embodiment. It is a sectional view for explaining a modification of the golf club as a 1st embodiment. It is a sectional view for explaining a modification of the golf club as a 1st embodiment. It is a sectional view for explaining a modification of the golf club as a 1st embodiment. It is a sectional view for explaining a modification of the golf club as a 1st embodiment. (A) and (B) are perspective views for explaining a modification of the golf club head according to the first embodiment. It is a perspective view for explaining the modification of the golf club as a 1st embodiment. (A) to (E) are perspective views for explaining modified examples of the golf club according to the first embodiment. (A) to (H) are top views for explaining modified examples of the golf club according to the first embodiment. (A) and (B) are sectional views for explaining a modified example of the golf club as the first embodiment. FIG. 2 is a cross-sectional view illustrating a golf club as a second embodiment. It is a sectional view for explaining a modification of the golf club as a second embodiment. It is a sectional view for explaining a modification of the golf club as a second embodiment. It is a sectional view for explaining a modification of the golf club as a second embodiment. It is an exploded perspective view of a golf club as a 3rd embodiment. It is a perspective view of the net member of the golf club as a 3rd embodiment. It is a sectional view of the golf club as a 3rd embodiment. It is a sectional view for explaining a modification of the golf club as a third embodiment. FIG. 7 is a perspective view illustrating a golf club as a fourth embodiment. (A) and (B) are perspective views illustrating a modified example of a golf club as a fourth embodiment. It is a sectional view for explaining a golf club as a 5th embodiment. It is a sectional view for explaining a modification of the golf club as a fifth embodiment. It is a sectional view for explaining a modification of the golf club as a fifth embodiment. It is a sectional view for explaining a modification of the golf club as a fifth embodiment. It is a sectional view for explaining a modification of the golf club as a fifth embodiment. It is a sectional view for explaining a modification of the golf club as a fifth embodiment. It is a sectional view for explaining a modification of the golf club as a fifth embodiment. It is a processing block diagram applied to the golf club as a 5th embodiment. (A) is a partial perspective view showing a golf club as a sixth embodiment, and (B) is a partial perspective view showing a modification of the golf club as a sixth embodiment. It is a processing block diagram applied to a golf club as a 6th embodiment. (A) and (B) are side views for explaining golf clubs as modified examples of the first to sixth embodiments.

[I. Description of the first embodiment]
[1. Basic structure]
FIG. 1(A) is a perspective view illustrating a golf club 1 (putter) as a first embodiment. This golf club 1 includes a head 3, a hosel 4, a shaft 5, and a grip 6. A hitting surface 2 (face) for hitting a golf ball is provided on the side surface of the head 3. Note that, as shown in FIG. 1(B), the hosel 4 and the head 3 may be provided flush with the striking surface 2 (forming the same plane). In the various examples of how the hosel 4 and the head 3 are arranged below, the hosel 4 and the head 3 may be provided flush with the striking surface 2 as shown in FIG. 1(B). Needless to say.
FIGS. 2A to 2C are perspective views illustrating types of putter heads 3. FIG. The shape of the head 3 may be a pin shape as shown in FIG. 2(A), a mallet shape as shown in FIG. 2(B), or a mallet shape as shown in FIG. 2(C). It may also be of neomallet type.

The shaft 5 is formed into an axial shape (elongated rod shape), and one end (the lower end in FIG. 1) is connected to the head 3 via the hosel 4. The cross-sectional shape of the shaft 5 may be circular, elliptical, or polygonal. Further, a grip 6, which is a portion to be gripped by a user, is provided at the other end of the shaft 5 (the upper end in FIG. 1). Similar to the shaft 5, the cross-sectional shape of the grip 6 may be circular, oval, or polygonal.

The hosel 4 is formed into a plate shape that extends in a plane direction parallel to the striking surface 2 and has a constant thickness. The hosel 4 is formed integrally with the head 3 and the shaft 5, for example in a non-replaceable manner. The shaft 5 may be connected to the end surface of the hosel 4, as shown in FIG. 3(A), or may be connected to the plate surface of the hosel 4, as shown in FIG. 3(B). Further, the thickness of the hosel 4 (dimension in the plate thickness direction) can be set independently of the thickness of the shaft 5. If the shaft 5 is thicker than the hosel 4, the lower end of the shaft 5 may be processed to have a smaller cross-sectional area, as shown in FIG. 3(C).

The width dimension of the hosel 4 when viewed from the front can also be set independently of the thickness of the shaft 5. For example, as shown in FIG. 3(D), the width of the hosel 4 may be set to be approximately the same as the thickness of the shaft 5. Further, the hosel 4 may be formed in such a shape that only the upper end connected to the shaft 5 has a smaller width. In this case, as shown in FIG. 3E, the width of the upper end of the hosel 4 may be set to be approximately the same as the thickness of the shaft 5. Alternatively, as shown in FIG. 3(F), the upper end of the hosel 4 may be made thinner than the shaft 5.

The orientation of the hosel 4 fixed to the head 3 is set so that it extends in a plane parallel to the striking surface 2. For example, as shown in FIG. 4(A), the hosel 4 may be arranged parallel to the striking surface 2. Alternatively, as shown in FIG. 4(B), the flat hosel 4 may be arranged diagonally (for example, with the upper part tilted toward the striking surface 2). The shape of the lower end of the shaft 5 fixed to the hosel 4 may be a crank shape, a straight shape, or a bent shape (bent shape) as shown in FIG. 4(A). It's okay.

The shape of the hosel 4 may be formed into a flat plate shape or may be formed into a bent plate shape. When forming into a flat plate, it may be formed into a rectangular flat plate or a polygonal (triangular or pentagonal) flat plate as shown in FIG. 4(A). In addition, when forming a bent plate shape, as shown in FIG. 4(C), it may be curved so that the side closer to the striking surface 2 is inward in the longitudinal section perpendicular to the striking surface 2, or the striking surface 2 It may be curved so that the side closest to is on the outside. A side view of the golf club 1 shown in FIG. 4(C) is illustrated in FIG. 5(A).

Further, the shape of the hosel 4 may be formed into a trapezoidal flat plate shape. FIGS. 4(D) and 5(B) are diagrams showing a hosel 4 formed into a trapezoidal flat plate shape imitating the side shape of a horseshoe. The trapezoid of the hosel 4 shown in FIG. and has. The first side 52 is formed to form an angle A of 40 degrees or more and less than 50 degrees with respect to the lower side 51. Further, the second side 53 is formed to form an angle B of 120 degrees or more and less than 130 degrees with respect to the lower side 51.

In addition, as shown in FIG. 5(C), the shaft 5 may have telescopic mechanisms 55 and 56 built therein. One of the expansion and contraction mechanisms 55 is a mechanism that can expand and contract in the extending direction of the shaft 5 (vertical direction in the figure), and is a mechanism for adjusting the vertical position of the head 3 with respect to the grip 6. Similarly, the other expansion/contraction mechanism 56 is a mechanism that can be expanded/contracted in a direction perpendicular to the expansion/contraction mechanism 55 (the left-right direction in the drawing), and is a mechanism for adjusting the position of the head 3 in the left-right direction. Further, the extension mechanism 57 may be built into the hosel 4. The expansion mechanism 57 is a mechanism that can expand and contract in the vertical direction in the figure, and is a mechanism for adjusting the position of the head 3 in the vertical direction.

Furthermore, a slide mechanism 58 may be built in at the connection point between the hosel 4 and the head 3. The slide mechanism 58 is a mechanism for adjusting the horizontal position of the hosel 4 with respect to the head 3 (or the horizontal position of the head 3 with respect to the hosel 4). The sliding direction by the slide mechanism 58 may be in the left-right direction in the figure, or may be in a direction perpendicular to the plane of the paper. Of course, as described above, the positions of the hosel 4 and head 3 can also be adjusted so that they are flush with the striking surface 2, as shown in FIG. 5(D). Further, the positions of the hosel 4 and the head 3 are set so that they are flush with the surface 2' opposite to the striking surface 2 (this surface 2' can also be the striking surface 2), as shown in FIG. 5(E). It can also be adjusted. Furthermore, in the following embodiments as well, the surface opposite to the striking surface 2 can also be used as the striking surface.

As described above, by extending the planar hosel 4 with a constant thickness parallel to the striking surface 2, the vibration of the striking surface 2 is converted into a planar vibration (membrane vibration) of the hosel 4. As a result, vibrations are efficiently transmitted to the shaft 5 and the grip 6, allowing the user to experience accurate and delicate vibrations. Therefore, a good hitting feel can be provided to the user, and the hitting feeling can be improved compared to existing golf clubs.

The head 3, hosel 4, shaft 5, and grip 6 may be formed integrally. Note that the grip 6 may be formed separately from the other members 3 to 5. FIGS. 6A and 6B are cross-sectional views of a golf club 1 in which the head 3, hosel 4, and shaft 5 are integrally formed. Such a golf club 1 may be formed, for example, by casting, or may be formed by seamlessly joining separate parts by welding or welding. That is, the hosel 4 may be integrally formed with the head 3 and the shaft 5 in a non-replaceable manner.

The inside of each of the head 3, hosel 4, shaft 5, and grip 6 may be formed hollow (with a cavity inside) or solid (with no cavity inside). . FIGS. 7A and 7B are cross-sectional views of the golf club 1 in which the head 3, hosel 4, and shaft 5 are hollow. Here, the hosel 4 has a hollow hosel cavity 8 (first cavity) therein. Similarly, the shaft 5 has a hollow shaft cavity 9 (second cavity) inside, and the head 3 has a hollow head cavity 7 (fourth cavity) inside. have Each of the head cavity 7 and the shaft cavity 9 communicates with the hosel cavity 8.

FIGS. 8A and 8B are cross-sectional views of a golf club 1 in which the hosel 4 is hollow, and the head 3 and shaft 5 are solid. 9A and 9B are cross-sectional views of a golf club 1 in which the hosel 4 and shaft 5 are hollow, and the head 3 is solid. A cavity may be formed in any of the head 3, hosel 4, shaft 5, and grip 6.

By providing a cavity inside the head 3, hosel 4, shaft 5, grip 6, etc., the vibrations of the striking surface 2 are also converted into vibrations of the air within the cavity. Thereby, the vibration of the striking surface 2 can be transmitted to the user not only as a physical vibration but also as a sound. In other words, the user can confirm the vibration of the hitting surface as sound, and can improve the hitting feel. Alternatively, as shown by broken lines in FIGS. 7(B), 8(B), and 9(B), an opening 11 may be formed to communicate the internal space of the hosel cavity 8 with the outside of the hosel 4. Alternatively, a head opening 12 may be formed that communicates the internal space of the head 3 with the outside. As a result, the sound reaching the user's ears can be increased, and the feel on impact can be further improved. The opening 11 and the head opening 12 may be located on the side where the striking surface 2 is formed (front), on the opposite side (back), or on the side. Note that there may be only one of the openings 11 and 12, or there may be no openings 11 and 12 (there is no need to form the openings 11 and 12).

[2. Vibration transmission member]
A vibration transmission member 20 may be built inside the golf club 1. FIG. 10 is a cross-sectional view illustrating the internal structure of the golf club 1 in which the vibration transmission member 20 is built. Inside this golf club 1, not only a hosel cavity 8 and a shaft cavity 9 but also a grip cavity 10 are provided. The grip cavity 10 is a hollow (third hollow) formed inside the grip 6 and communicates with the shaft cavity 9. The upper end of the grip 6 is closed by a grip upper end plate 21.

The vibration transmission member 20 is a member that transmits vibrations generated on the striking surface 2 to the grip 6. The vibration transmission member 20 is formed into an elongated shape and is provided inside the hosel cavity 8, the shaft cavity 9, and the grip cavity 10. Specific examples of the vibration transmission member 20 include a wire (for example, a wire such as a steel wire or a piano wire), a string (for example, a string made of woven various fibers), and a rod member (for example, a rod member formed from a bar-shaped metal or wood). , a linear elastic member (for example, a linear elastic member made of rubber or resin), a long coil spring, and the like.

One end portion (lower end portion in FIG. 10) of the vibration transmission member 20 is fixed to the head 3 via a fixture 22. On the other hand, the other end of the vibration transmission member 20 (the upper end in FIG. 10) is attached to the inner circumferential surface of the grip 6 via the inner grip plate 23 and the inner grip fixture 24 (attachment member). As shown in FIG. 10, a mass member 26 serving as a weight for amplifying vibration may be attached to the vibration transmission member 20. The position of the mass member 26 may be fixed with respect to the vibration transmission member 20, or may be movable (the fixed position can be adjusted). Further, for example, the mass member 26 may be added according to the user's preference.

Vibrations generated on the striking surface of the head 3 are not only transmitted to the grip 6 via the hosel 4 and shaft 5, but also transmitted to the grip 6 via the vibration transmission member 20. In this way, by incorporating the vibration transmission member 20 into the shaft 5, the number of vibration transmission paths can be increased, and vibrations generated on the striking surface of the head 3 can be efficiently transmitted to the grip 6 without being attenuated. Therefore, a good hitting feel can be provided to the user, and the hitting feeling can be improved compared to existing golf clubs.

The inner grip plate 23 and the inner grip fixture 24 (mounting member) provided at the other end of the vibration transmission member 20 (the upper end in FIG. 10) adjust the extension of the grip 6 by an electric or manual adjustment mechanism (not shown). It may be provided so that its position in the direction of movement can be adjusted. Thereby, the tension of the vibration transmission member 20 can be adjusted, and vibrations can be efficiently transmitted to the grip 6. Further, the grip inner plate 23 may be formed in a film shape that is expanded in a direction intersecting the extending direction of the grip 6 (for example, a direction perpendicular to the extending direction of the grip 6). By forming the grip inner plate 23 into a membrane shape, the grip inner plate 23 can be caused to vibrate in a plane (membrane vibration), and vibration transmission efficiency can be improved.

FIG. 11 is a cross-sectional view illustrating the internal structure of the golf club 1 in which the vibration transmission member 20 and the auxiliary vibration transmission member 30 are built. A head cavity 7 is provided inside the head 3 of this golf club 1, and an auxiliary vibration transmission member 30 is attached therein. The auxiliary vibration transmission member 30 is a member that transmits vibrations generated on the striking surface 2 to the vibration transmission member 20. As with the vibration transmission member 20, specific examples of the auxiliary vibration transmission member 30 include a wire, a string, a rod member, a linear elastic member, a long coil spring, and the like.

The end of the head tip 31 (left side in FIG. 11) of the auxiliary vibration transmission member 30 is attached to the inner circumferential surface of the head 3 via a head tip side fixture 33. Further, the end of the head base end portion 32 (on the right side in FIG. 11) is attached to the inner circumferential surface of the head 3 via the head base end side fixture 34. An intermediate portion of the auxiliary vibration transmission member 30 is attached to the inner peripheral surface of the head 3 via an inner head plate 35 and an inner head fixture 36. Further, the auxiliary vibration transmission member 30 and the head internal fixture 36 are bound together by a binding part 37. The head inner plate 35 is provided with a hole into which the auxiliary vibration transmission member 30 is loosely inserted. The position of the head inner plate 35 is set near the striking surface 2, for example.

One end portion (lower end portion in FIG. 11) of the vibration transmission member 20 is fixed to the auxiliary vibration transmission member 30 via a connecting fitting 27. The other end of the vibration transmission member 20 (the upper end in FIG. 11) may have a structure as shown in FIG. 10, or may be fixed to the grip upper end plate 21 via the grip upper end fixture 28. good. In the example shown in FIG. 11, the intermediate portion of the vibration transmission member 20 is attached to the inner circumferential surface of the grip 6 via the inner grip plate 23 and the inner grip fixture 24. In the example shown in FIG. Further, the vibration transmission member 20 and the internal grip fixture 24 are bound together by a binding part 25 . The inner grip plate 23 is provided with a hole into which the vibration transmission member 20 is loosely inserted. Two pairs of grip inner plates 23 and grip inner fixtures 24 are provided.

The vibrations generated on the striking surface of the head 3 are not only transmitted to the grip 6 via the hosel 4 and shaft 5, but also transmitted to the grip 6 via the auxiliary vibration transmission member 30 and the vibration transmission member 20. In this way, by incorporating the auxiliary vibration transmission member 30 into the head 3, the vibration transmitted to the vibration transmission member 20 can be amplified, and the vibration can be efficiently transmitted to the grip 6. Therefore, a good hitting feel can be provided to the user, and the hitting feeling can be improved compared to existing golf clubs.

FIG. 12 is a cross-sectional view illustrating the internal structure of the golf club 1 provided with three pairs of the vibration transmission member 20 and the auxiliary vibration transmission member 30. By providing a plurality of vibration transmission members 20 and auxiliary vibration transmission members 30 in this manner, vibrations generated on the striking surface of the head 3 can be efficiently transmitted to the grip 6. Therefore, a good hitting feel can be provided to the user, and the hitting feeling can be improved compared to existing golf clubs.

FIG. 13 is a sectional view showing an example of a structure for making the position of the other end (upper end in FIG. 13) of the vibration transmission member 20 adjustable in the extending direction of the grip 6. Here, the vibration transmission member 20 is composed of a wire, a string, a linear elastic member, or a long coil spring. A motor 43 and a winding device 44 are provided at the other end of the vibration transmission member 20 . A pinion 42 is rotatably attached to the motor 43.

Furthermore, a rack 41 that meshes with a pinion 42 is fixed to the inner circumferential surface of the grip cavity 10. The pinion 42 is urged upward with respect to the rack 41 by an unillustrated urging member (for example, a spring or rubber). By rotating the motor 43 and winding up the other end of the vibration transmission member 20 with the winding device 44, the pinion 42 is moved downward along the rack 41. Furthermore, by rewinding the motor 43, the pinion 42 is moved upward along the rack 41. With this configuration, the position where vibrations are transmitted can be easily adjusted in the extending direction of the grip 6, and the vibrations can be efficiently transmitted to the grip 6.

Note that in place of the motor 43, a manually operated winding device 44 may be used. The winding device 44 may be provided so as to be rotated from the outside using, for example, a jig such as a Phillips screwdriver or a flathead screwdriver. In this case, the pinion 42 is moved downward along the rack 41 by manually rotating the winding device 44 to wind up the other end of the vibration transmission member 20 . Further, by rewinding the winding device 44 in the opposite direction, the pinion 42 is moved upward along the rack 41. With this configuration, the position where vibrations are transmitted can be manually and easily adjusted in the extending direction of the grip 6, and the vibrations can be efficiently transmitted to the grip 6.

[3. head]
14(A) and (B) are perspective views for explaining a modification of the head 3. FIG. As shown in these figures, the head 3 may have a built-in weight member 61 for changing the position of the center of gravity of the head 3. In this case, the position of the center of gravity may be changed by making the attachment state (position and angle) of the weight member 61 adjustable. Further, the attachment state of the weight member 61 may be adjusted manually by the user, or a weight motor 62 (drive source) for moving the weight member 61 may be provided.

FIG. 14(A) is a perspective view showing a head 3 in which two sets of weight members 61 and a weight motor 62 are built into the upper surface. The weight member 61 is made of a material having a density different from that of the material constituting the head 3, and is provided inside a hollow cylindrical recess formed in the upper surface of the head 3. Further, the weight motor 62 changes the position of each weight member 61 by moving the weight member 61 in the rotational direction along the inner peripheral surface of the recess. With such a configuration, the position of the weight member 61 can be easily changed to move the center of gravity of the head 3, and a good hitting feel can be provided.

FIG. 14(B) is a perspective view showing a weight member 61 provided inside a linear recess formed in the upper surface of the head 3. FIG. The weight motor 62 changes the position of each weight member 61 by sliding the weight member 61 along the inner peripheral surface of the recess. Even in such a configuration, the center of gravity of the head 3 can be moved by easily changing the position of the weight member 61, and a good hitting feel can be provided.

[4. effect]
(1) The golf club 1 of the present invention includes a head 3, a shaft 5, a hosel 4, and a grip 6. The head 3 has a hitting surface 2 for hitting a golf ball. The shaft 5 is formed into an axial shape. The hosel 4 irreversibly connects one end of the shaft 5 and the head 3 together. The grip 6 is provided at the other end of the shaft 5 and is gripped by a user. In this way, by forming the hosel 4 integrally with the head 3 and shaft 5 in a non-replaceable state, the attenuation of vibrations passing through the hosel 4 can be suppressed, and the vibrations can be efficiently transmitted to the grip 6. Therefore, the feel on impact can be further improved.

(2) The hosel 4 is formed into a plate shape that extends in a plane direction parallel to the striking surface 2 and has a constant thickness. In this way, by extending the planar hosel 4 with a constant thickness parallel to the striking surface 2, the vibration of the striking surface 2 is converted into a planar vibration (membrane vibration) of the hosel 4. As a result, vibrations are efficiently transmitted to the shaft 5 and the grip 6, allowing the user to experience accurate and delicate vibrations. Therefore, a good hitting feel can be provided to the user, and the hitting feeling can be improved compared to existing golf clubs.

(3) The hosel 4 of the present invention is formed into a rectangular flat plate, as shown in FIGS. 2(A) to (C), FIGS. 3(A) to (F), and FIGS. It can be done. In this way, by forming the hosel 4 into a rectangular flat plate shape, vibration transmission efficiency can be improved with a simple configuration. Therefore, the feel on impact can be further improved.

(4) The hosel 4 of the present invention is a bent plate that is curved so that the side closer to the striking surface 2 is inward in the longitudinal section perpendicular to the striking surface 2, as shown in FIGS. 4(C) and 5(A), for example. It can be formed into a shape. With such a shape, the connection position between the shaft 5 and the hosel 4 in a top view can be brought closer to the striking surface while improving the vibration transmission efficiency. Therefore, a good feel on impact can be provided. Note that it is also possible to arrange the position of the golf ball when it contacts the hitting surface 2 on the extension line of the shaft 5.

Note that the hosel 4 of the present invention may also be formed into a trapezoidal flat plate shape imitating the side surface shape of a horseshoe, as shown in FIGS. 4(D) and 5(B), for example. This trapezoid has a lower side 51 in contact with the upper surface of the head 3, a first side 52 that forms an angle of 40 degrees or more and less than 50 degrees with respect to the lower side 51, and a first side 52 that forms an angle of 120 degrees or more and 130 degrees with respect to the lower side 51. It has a second side 53 that forms an angle of less than a degree, and an upper side 54 that connects the first side 52 and the second side 53 and is non-parallel to the lower side 51 . In this manner, by adopting a trapezoidal planar shape that imitates the side surface shape of a horseshoe as the shape of the hosel 4, it is possible to provide a good feel on impact while ensuring the strength and rigidity of the hosel 4.

(5) The hosel 4 of the present invention may have a hollow hosel cavity 8 (first cavity) therein, as shown in FIGS. 7 to 9, for example. By forming such a hosel cavity 8 inside the hosel 4, sound can be generated in the hosel cavity 8. This allows the user to hear the vibrations of the hitting surface 2 as sound, thereby further improving the hitting feel. Furthermore, by forming an opening 11 for transmitting the reverberated sound of the hosel cavity 8 to the outside of the hosel 4, the sound heard by the user can be increased, the hitting feel can be further improved, and the hitting sound can be reduced. It can be fully confirmed.

(6) As shown in FIGS. 7 and 9, for example, the shaft 5 of the present invention has a shaft cavity 9 (second cavity) which is formed hollow and communicates with the hosel cavity 8 (first cavity). can be held in By forming such a shaft cavity 9 within the shaft 5, vibrations can also be reflected in the shaft cavity 9, and the sound that can be heard by the user can be increased. Therefore, the feel and sound of impact can be further improved.

(7) As shown in FIGS. 10 to 13, for example, the grip 6 of the present invention has a grip cavity 10 (third cavity) formed in the hollow that communicates with the shaft cavity 9 (second cavity). can be held in By forming such a grip cavity 10 in the grip 6, vibrations can be reflected in the grip cavity 10 as well, and the sound heard by the user can be increased. Therefore, the feel and sound of impact can be further improved.

(8) The grip 6 of the present invention may be formed integrally with the shaft 5, as shown in FIGS. 10 to 13, for example. If the shaft 5 and the grip 6 are separate members, there is a risk that vibrations will be attenuated when passing through the joint between them, and the vibrations transmitted to the grip 6 will be reduced. To solve this problem, by integrally forming the shaft 5 and the grip 6, vibrations can be efficiently transmitted to the grip 6. Therefore, the feel on impact can be further improved.

(9) As shown in FIG. 10, for example, a vibration transmission member 20 that transmits vibrations generated on the hitting surface 2 to the grip 6 can be applied to the golf club 1 of the present invention. The vibration transmission member 20 is formed in a long shape, and one end thereof is fixed to the head 3, and is housed in the shaft cavity 9 (second cavity) and the grip cavity 10 (third cavity). Furthermore, an inner grip plate 23 and an inner grip fixture 24 (mounting member) that connect the other end of the vibration transmission member 20 and the grip 6 may be applied inside the grip cavity 10 (third cavity). . In this way, by incorporating the vibration transmission member 20 into the shaft 5 and the grip 6, the vibration generated on the hitting surface 2 of the head 3 can be efficiently transmitted to the grip 6 without being attenuated, and the hitting feel can be further improved.

(10) For example, as shown in FIG. 13, a mounting member that connects the other end of the vibration transmission member 20 and the grip 6 (pinion 42, motor 43, winding device 44 in FIG. 13, or manually operated winding The device 44) may be provided so that its position can be adjusted in the extending direction of the grip 6. With such a configuration, it becomes possible to adjust the position to which the vibration of the vibration transmission member 20 is transmitted, and the vibration can be efficiently transmitted to the grip 6. Therefore, the feel on impact can be further improved.
Note that the inner grip plate 23 and the inner grip fixture 24 (attachment member) shown in FIG. 10 may be provided so that their positions in the extending direction of the grip 6 can be adjusted by an adjustment mechanism (not shown). Thereby, the tension of the vibration transmission member 20 can be adjusted, and vibrations can be efficiently transmitted to the grip 6.

(11) The vibration transmission member 20 of the present invention may be composed of a wire, a string, a rod member, or a linear elastic member. Thereby, the vibration transmission member 20 can be realized with a simple configuration, and the vibration transmission efficiency can be easily improved. Therefore, the feel on impact can be further improved.

(12) Furthermore, the grip inner plate 23 (attachment member) of the present invention may be formed in a membrane shape that is expanded in a direction intersecting the extending direction of the grip 6. By forming the inner grip plate 23 (attachment member) into a membrane shape, surface vibration (membrane vibration) can be generated, and vibration transmission efficiency can be improved. Therefore, the feel on impact can be further improved.

(13) As shown in FIGS. 10 and 11, a mass member 26 serving as a weight for amplifying vibrations may be attached to the vibration transmitting member 20 of the present invention. By providing the mass member 26, the vibration of the vibration transmission member 20 can be easily amplified, or vibration attenuation can be suppressed, and vibration transmission efficiency can be improved. Therefore, the feel on impact can be further improved.

(14) The head 3 of the present invention may have therein a hollow head cavity 7 (fourth cavity) that communicates with the hosel cavity 8 (first cavity). By forming such a head cavity 7 in the head 3, vibrations can also be reflected in the head cavity 7, and the sound that can be heard by the user can be increased. Therefore, the feel on impact can be further improved.

(15) As shown in FIGS. 11 and 12, for example, an auxiliary vibration transmission member 30 that transmits vibrations generated on the hitting surface 2 to the vibration transmission member 20 can be applied to the golf club 1 of the present invention. The auxiliary vibration transmission member 30 is provided inside the head cavity 7 (fourth cavity). In this way, by incorporating the auxiliary vibration transmission member 30 into the head 3, the vibration generated on the striking surface 2 of the head 3 can be efficiently transmitted to the vibration transmission member 20 without being attenuated, and the hitting feel can be further improved.

(16) As shown in FIGS. 14(A) and 14(B), a weight member 61 for changing the position of the center of gravity of the head 3 may be applied to the head 3 of the present invention. By changing the attachment position and attachment angle of the weight member 61, the center of gravity of the head 3 can be easily moved and a good hitting feel can be provided.

(17) Note that as shown in FIG. 14(A), a weight motor 62 may be provided as a drive source for moving the weight member 61. In this case, the weight member 61 is provided, for example, inside a hollow cylindrical recess formed in the upper surface of the head 3. Further, the weight motor 62 rotates the weight member 61 along the inner peripheral surface of the recess. With such a configuration, the center of gravity of the head 3 can be easily adjusted using the weight motor 62. Therefore, the feel on impact can be further improved.

[5. Modified example]
The example according to the first embodiment described above is merely an example, and there is no intention to exclude the application of various modifications and techniques not specified in this example. Each structure of the example according to the first embodiment can be modified and implemented in various ways without departing from the spirit thereof. Further, they can be selected or combined as necessary.

For example, as shown in FIG. 15, a vibration sensor 81 that detects vibrations generated on the striking surface 2 may be built into the hosel 4. The vibration sensor 81 may be attached to the outer surface of the hosel 4 or may be built-in. When the hosel cavity 8 is formed inside the hosel 4, the vibration sensor 81 may be arranged inside the hosel cavity 8. By detecting vibration with the vibration sensor 81, it is possible to objectively capture the magnitude and waveform of the vibration in the vicinity of the vibration source (the hitting surface 2), thereby further improving the hitting feel. In addition, the size and waveform of vibrations can be analyzed, and the results of the analysis can be used to improve the effectiveness of golf practice. The information detected by the vibration sensor 81 may be transmitted to a computer (not shown) by, for example, a wireless connection or a wired connection.

Further, a vibration device 82 that vibrates based on vibration information detected by the vibration sensor 81 may be built into the grip 6. If the grip cavity 10 is formed inside the grip 6, the vibrating device 82 may be placed inside the grip cavity 10. The vibration device 82 may function, for example, to amplify and output the vibration detected by the vibration sensor 81 as it is. By amplifying the vibrations with the vibration device 82, the vibrations actually transmitted to the user can be increased, and the hitting feel can be further improved.

Further, a speaker 82A that emits sound based on vibration information detected by the vibration sensor 81 may be built into the grip 6. When the grip cavity 10 is formed inside the grip 6, a speaker 82A including an amplifier may be placed inside the grip cavity 10. The speaker 82A may function, for example, to amplify the vibration detected by the vibration sensor 81 as it is and output it as sound. As a result, when a golf ball is hit with one hitting surface of the golf club, the vibrations generated at that time are detected by the vibration sensor 81 and audible as sound from the speaker 82A. At this time, the hollow shaft 5 functions as a speaker box and amplifies and outputs the sound related to the vibration. As a result, the golf club 1 can function as a type of electronic musical instrument.
Of course, both the vibration device 82 and the speaker 82A may be attached to the grip 6.

Further, as shown in FIGS. 16(A) and 16(B), thin plate-shaped fins 13 may be provided upright on the upper surface of the head 3. The fin 13 is a thin plate-like or hollow plate-like part that functions to amplify vibrations generated in the head 3 and the hosel 4. The number of fins 13 may be appropriately set depending on the size of the head 3 and hosel 4, and may be one or two or more. Moreover, the fins 13 may be arranged on the side closer to the striking surface 2, or may be arranged on the side farther from the striking surface 2, with reference to the position of the hosel 4 to which the shaft 5 is connected.

Note that, as shown in FIGS. 16(A) and 16(B), the height of the fin 13 may be set to be the same (or approximately the same) as the hosel 4. Alternatively, as shown in FIGS. 16(C), (D), and (E), the height of the fin 13 may be different from that of the hosel 4, or may be set to about half the height of the hosel 4, for example. In this way, the size relationship between the hosel 4 and the fins 13 (thickness, height, depth) can be set as appropriate. Furthermore, the fins 13 disposed near the hosel 4 may be formed integrally with the hosel 4 or may be formed separately.

Further, on the top surface 13A of the fin 13, an illumination member 13B including, for example, an LED or a fluorescent material can be arranged. Alternatively, a lighting member 4B similar to the lighting member 13B may be arranged on the top surface 4A of the hosel 4. For example, the lighting members 4B and 13B may be one or more, and may be arranged in a plane, in a row, or in a chain. In this way, the trajectory of the head 3 can be sufficiently confirmed even when practicing in the dark. Note that the illumination member 4B can also be omitted.

In addition, the shape of the fin 13 may be a curved shape (crescent shape) in top view as shown in FIGS. As shown in F), it is also possible to use one that has a wavy shape when viewed from above. Of course, the shape of the fins 13 can be a combination of curved shapes and wavy shapes, and furthermore, other shapes when viewed from above can also be used. When the fins 13 having such a shape are used, the hosel 4 can also be curved or wavy. When viewed from above, a curved or wavy shape produces a fluctuation effect, giving the user a sense of balance.

Further, as shown in FIGS. 17(G) and (H), the longitudinal direction of the head 3 may be formed so as to match the swinging direction of the head 3 (see solid line arrow or broken line arrow) when viewed from above. U-shaped fins 13 may be provided on the top surface of the head 3. The number of fins 13 may be one or more. It is preferable that the fins 13 are oriented so that the U-shape opens toward the striking surface 2 when viewed from above. Note that the positions of the hosel 4 and the head 3 can also be made flush with the striking surface 2, as shown in FIGS. 17(C), (F), and (H).

18(A) and (B) are cross-sectional views illustrating the internal structure of the golf club 1 shown in FIG. 16(A). By providing the fins 13 on the top surface of the head 3, vibrations can be easily amplified. In addition, when a plurality of fins 13 (these fins 13 can be linear, curved, wavy, etc. when viewed from above), vibrations resonate between them. can be further amplified. Therefore, it is possible to provide the user with a good hitting feel and sound, and it is possible to provide a structure that has the same effects as the above-described embodiments.

[II. Description of second embodiment]
The second embodiment relates to a golf club 1 that does not have a hosel 4, unlike the first embodiment. In the golf club 1 of the second embodiment, the shaft 5 and the grip 6 are formed hollow, and the vibration transmission member 20 is provided in these hollow parts.

That is, the vibration transmission member 20 is built inside the golf club 1 that does not have the hosel 4. FIG. 19 is a cross-sectional view illustrating the internal structure of the golf club 1 in which the vibration transmission member 20 is built. Inside this golf club 1, not only a shaft cavity 9 (second hollow part) but also a grip cavity 10 (third hollow part) are provided. The grip cavity 10 is hollow formed inside the grip 6 and communicates with the shaft cavity 9. The upper end of the grip 6 is closed by a grip upper end plate 21.

The vibration transmission member 20 is a member that transmits vibrations generated on the striking surface 2 to the grip 6. The vibration transmission member 20 is formed into an elongated shape and is provided inside the shaft cavity 9 and the grip cavity 10. Specific examples of the vibration transmission member 20 include a wire (for example, a wire such as a steel wire or a piano wire), a string (for example, a string made of woven various fibers), and a rod member (for example, a rod member formed from a bar-shaped metal or wood). , a linear elastic member (for example, a linear elastic member made of rubber or resin), a long coil spring, and the like.

One end portion (lower end portion in FIG. 19) of the vibration transmission member 20 is fixed to the head 3 via a fixture 22. On the other hand, the other end of the vibration transmission member 20 (the upper end in FIG. 19) is attached to the inner peripheral surface of the grip 6 via the inner grip plate 23 and the inner grip fixture 24 (attachment member). As shown in FIG. 19, a mass member 26 serving as a weight for amplifying vibration may be attached to the vibration transmission member 20. The position of the mass member 26 may be fixed with respect to the vibration transmission member 20, or may be movable (the fixed position can be adjusted). Further, for example, the mass member 26 may be added, changed, or replaced according to the user's preference.

The vibration generated on the striking surface of the head 3 is not only transmitted to the grip 6 via the shaft 5 but also transmitted to the grip 6 via the vibration transmission member 20. In this way, by incorporating the vibration transmission member 20 into the shaft 5, the number of vibration transmission paths can be increased, and vibrations generated on the striking surface of the head 3 can be efficiently transmitted to the grip 6 without being attenuated. Therefore, a good hitting feel can be provided to the user, and the hitting feeling can be improved compared to existing golf clubs.

The grip inner plate 23 and the grip inner fixture 24 (mounting member) provided at the other end of the vibration transmission member 20 (the upper end in FIG. 19) are adjusted in the extending direction of the grip 6 by an electric or manual adjustment mechanism (not shown). The position may be adjustable. Thereby, the tension of the vibration transmission member 20 can be adjusted, and vibrations can be efficiently transmitted to the grip 6. Further, the grip inner plate 23 may be formed in a film shape that is expanded in a direction intersecting the extending direction of the grip 6 (for example, a direction perpendicular to the extending direction of the grip 6). By forming the grip inner plate 23 into a membrane shape, the grip inner plate 23 can be caused to vibrate in a plane (membrane vibration), and vibration transmission efficiency can be improved.

FIG. 20 is a cross-sectional view illustrating the internal structure of the golf club 1 in which the vibration transmission member 20 and the auxiliary vibration transmission member 30 are built. A head cavity 7 (fourth cavity) is provided inside the head 3 of this golf club 1, and an auxiliary vibration transmission member 30 is attached therein. The auxiliary vibration transmission member 30 is a member that transmits vibrations generated on the striking surface 2 to the vibration transmission member 20. As with the vibration transmission member 20, specific examples of the auxiliary vibration transmission member 30 include a wire, a string, a rod member, a linear elastic member, a long coil spring, and the like.

An end of the head tip 31 (left side in FIG. 20) of the auxiliary vibration transmission member 30 is attached to the inner circumferential surface of the head 3 via a head tip side fixture 33. Further, the end of the head base end portion 32 (right side in FIG. 20) is attached to the inner peripheral surface of the head 3 via the head base end side fixture 34. An intermediate portion of the auxiliary vibration transmission member 30 is attached to the inner peripheral surface of the head 3 via an inner head plate 35 and an inner head fixture 36. Further, the auxiliary vibration transmission member 30 and the head internal fixture 36 are bound together by a binding part 37. The head inner plate 35 is provided with a hole into which the auxiliary vibration transmission member 30 is loosely inserted. The position of the head inner plate 35 is set near the striking surface 2, for example.

One end portion (lower end portion in FIG. 20) of the vibration transmission member 20 is fixed to the auxiliary vibration transmission member 30 via a connecting fitting 27. The other end of the vibration transmission member 20 (the upper end in FIG. 20) may have a structure as shown in FIG. 19 or as shown in FIG. It may be fixed to the upper end plate 21 of the grip via the handle. In the example shown in FIG. 20, the intermediate portion of the vibration transmission member 20 is attached to the inner circumferential surface of the grip 6 via the inner grip plate 23 and the inner grip fixture 24. In the example shown in FIG. Further, the vibration transmission member 20 and the internal grip fixture 24 are bound together by a binding part 25 . The inner grip plate 23 is provided with a hole into which the vibration transmission member 20 is loosely inserted. Two pairs of grip inner plates 23 and grip inner fixtures 24 are provided.

The vibration generated on the striking surface of the head 3 is not only transmitted to the grip 6 via the shaft 5 but also transmitted to the grip 6 via the auxiliary vibration transmission member 30 and the vibration transmission member 20. In this way, by incorporating the auxiliary vibration transmission member 30 into the head 3, the vibration transmitted to the vibration transmission member 20 can be amplified, and the vibration can be efficiently transmitted to the grip 6. Therefore, a good hitting feel can be provided to the user, and the hitting feeling can be improved compared to existing golf clubs.

FIG. 21 is a cross-sectional view illustrating the internal structure of a golf club 1 provided with three pairs of vibration transmission members 20 and auxiliary vibration transmission members 30. By providing a plurality of vibration transmission members 20 and auxiliary vibration transmission members 30 in this manner, vibrations generated on the striking surface of the head 3 can be efficiently transmitted to the grip 6. Therefore, a good hitting feel can be provided to the user, and the hitting feeling can be improved compared to existing golf clubs.

FIG. 22 is a sectional view showing an example of a structure for making the position of the other end (upper end in FIG. 22) of the vibration transmission member 20 adjustable in the extending direction of the grip 6. Here, the vibration transmission member 20 is composed of a wire, a string, or a linear elastic member. A motor 43 and a winding device 44 are provided at the other end of the vibration transmission member 20 . A pinion 42 is rotatably attached to the motor 43.

Furthermore, a rack 41 that meshes with a pinion 42 is fixed to the inner circumferential surface of the grip cavity 10. The pinion 42 is urged upward with respect to the rack 41 by an unillustrated urging member (for example, a spring or rubber). By rotating the motor 43 and winding up the other end of the vibration transmission member 20 with the winding device 44, the pinion 42 moves downward along the rack 41. Furthermore, by rewinding the motor 43, the pinion 42 moves upward along the rack 41.

Note that in place of the motor 43, a manually operated winding device 44 may be used. The winding device 44 may be provided so as to be rotated from the outside using, for example, a jig such as a Phillips screwdriver or a flathead screwdriver. In this case, the pinion 42 is moved downward along the rack 41 by manually rotating the winding device 44 to wind up the other end of the vibration transmission member 20 . Further, by rewinding the winding device 44 in the opposite direction, the pinion 42 is moved upward along the rack 41. With this configuration, the position where vibrations are transmitted can be manually and easily adjusted in the extending direction of the grip 6, and the vibrations can be efficiently transmitted to the grip 6.

[III. Description of third embodiment]
The third embodiment relates to a golf club 1 characterized by an insert provided on the hitting surface 2 of the head 3. As shown in FIG. 23, this golf club 1 includes a head 3, a shaft 5, and a grip 6.

A hitting surface (face) 2 for hitting a golf ball is provided on the side surface of the head 3. The hitting surface 2 is provided with an insert consisting of a planar vibration member 15 formed into a planar shape that vibrates in a planar manner upon collision with a golf ball and provides a reaction force to the golf ball. As a result, it is possible to efficiently apply a reaction force to the ball with a small amount of force and increase the flight distance. The hitting feel can be improved by surface vibration.

As shown in FIG. 24, for example, the surface vibration member 15 has a net member 16 formed by weaving strings 19 into a net shape inside a frame 18, and is attached to the striking surface 2 so as to cover the entire surface of the net member 16. It has a membrane member 17. This net member 16 has a structure similar to, for example, a tennis racket structure. Thereby, reaction force can be efficiently applied to the ball. Note that it is preferable that each of the net member 16 and the membrane member 17 be individually attachable to and detachable from the striking surface 2 of the head 3.

The string 19 constituting the net member 16 may be made of at least one of natural fibers (gut (cow, sheep intestines)), synthetic fibers (nylon fibers, polyester fibers), and elastic fibers (natural rubber fibers, synthetic rubber fibers). The membrane member 17 includes at least one of a metal plate, a resin plate, a rubber membrane, and a leather membrane. As a result, by reusing existing strings (tennis strings, rubber belts, etc.), it is possible to create net members at low cost, and by reusing existing membrane products (e.g. drum membranes, rubber membranes for table tennis rackets, etc.), A membrane member can be realized at low cost. Furthermore, the net member 16 and the membrane member 17 may be integrally formed to have a structure similar to the hitting surface structure of a table tennis racket, or the net member 16 may be made of drum skin stretched over a frame material. It is also possible for the insert to be made of metal. In this case, the insert may be formed in a lattice shape like a grating lid.

Note that the structure of the insert may be similar to a gong structure. That is, the hitting surface 2 of the insert has a fishing structure, and when a golf ball hits the hitting surface 2 having the gong structure, a gong-like sound is produced.
If a drum skin is stretched over the frame material as the net member 16, or if the insert striking surface 2 has a gong structure, a vibration sensor that detects the vibration of the drum skin or the vibration of an insert with a gong structure may be attached to the head of a golf club, for example. It is also possible to amplify the vibration of the drum skin or the vibration of the gong-shaped insert by providing it inside or in a place integrated with or close to the insert, and output this vibration as sound through a speaker.

The planar vibration member 15 is detachably provided to the head 3 . This allows the user to remove or attach it according to their preference. Further, the planar vibration member 15 can be attached to an existing golf club. Further, similarly to the head cavity 7 in the first embodiment, a head cavity 7 formed by forming the inside of the head 3 hollow may be provided. For example, as shown in FIGS. 23 and 25, a head cavity 7 may be formed inside the head main body 14, and an opening may be provided on the side surface of the head cavity 7. The surface vibration member 15 (net member 16, membrane member 17) is attached so as to cover the opening of the head body portion 14. Thereby, the surface vibration of the surface vibration member 15 is reflected inside the head cavity 7, thereby improving the hitting feel.

Further, an in-head wire (auxiliary vibration transmission member) 30 may be attached inside the head cavity 7. The in-head wire 30 is stretched inside the head cavity 7 and is connected to the planar vibration member 15 via a connecting wire 40 . Thereby, the plane vibration of the plane vibration member 15 can be amplified as the vibration of the in-head wire 30, and the hitting feel can be improved.

Further, as shown in FIG. 25, a shaft cavity 9 formed by forming a hollow interior of the shaft 5 may be provided, similar to the shaft cavity 9 in the first embodiment. With such a configuration, the surface vibration can also be reflected inside the shaft cavity 9, and the hitting feel can be improved. Note that, as shown in FIG. 25, an in-shaft wire 20 may be provided inside the shaft cavity 9. The in-shaft wire 20 is stretched inside the shaft cavity 9 and is connected to the in-head wire 30 . With such a configuration, the surface vibration of the surface vibration member 15 can be amplified as vibration of the in-shaft wire 20, and the hitting feel can be improved.

Further, as shown in FIG. 26, the shaft inner wire 20 may be stretched so as to connect the grip 6 and the head inner wire 30. In other words, the upper end of the in-shaft wire 20 may be fixed inside the grip 6 to transmit the vibration of the planar vibration member 15 to the grip 6. With such a configuration, vibrations can be efficiently transmitted to the grip, and the hitting feel can be further improved.

When the golf ball hits the hitting surface 2 of the insert when hitting the ball with a golf club, if it hits the sweet pot of the hitting surface 2, a chime, gong, or buzzer will sound as an electronic sound, or a voice will notify you of this. , the tone of the chime, gong, or buzzer may be made different depending on whether the sweet spot is hit or not, or the sound may be changed. In this case, a sensor is provided to detect when the golf ball hits the sweet spot, or a sensor is provided to detect when the golf ball has left the sweet spot, and the amplifier is activated based on the detection information from this sensor (or these sensors). Through the speaker, the sound of a chime, gong, buzzer, or voice is output.

Of course, it is also possible to apply the golf club having the insert head according to the third embodiment to a golf club having a hosel like the first embodiment. That is, an insert as shown in FIGS. 23 and 24 may be attached to the head of the hitting surface of a golf club with a hosel. Furthermore, as shown in FIG. 25, the inner surface of the insert can be directly connected to the auxiliary vibration transmission member (wire 30 in the head). In this way, the vibrations in the insert can be directly transmitted. The signal is transmitted to the in-head wire 30, which further improves transmission efficiency and contributes to improving the feel on impact.

[IV. Description of fourth embodiment]
The fourth embodiment relates to a golf club 1 having a fin or plate member 86. A golf club 1 shown in FIG. 27 includes a head 3 having a hitting surface 2 for hitting a golf ball, a shaft 5 formed in an axial shape, a hosel 4 connecting one end of the shaft 5 and the head 3, and a shaft 5. 5 and a grip 6 provided at the other end to be held by the user. Further, a fin or plate member 86 is provided between the head 3 and the hosel 4.

The fin or plate member 86 is a flat member, and is fixed so as to connect the head 3 and the hosel 4 in a direction substantially parallel to the striking surface 2. The fin or plate member 86 shown in FIG. 27 is formed into a triangular flat plate shape and is stretched between the upper surface of the head 3 and the end surface of the hosel 4. Although FIG. 27 shows only one fin or plate member 86, the number of fins or plate members 86 is not limited, and a plurality of fins or plate members 86 may be provided.

The golf club 1 shown in FIGS. 28(A) and 28(B) is a golf club 1 that does not have a hosel 4. That is, these golf clubs 1 include a head 3 having a hitting surface 2 for hitting a golf ball, a shaft 5 formed in the shape of an axis, and a grip provided at the other end of the shaft 5 to be held by a user. 6. The head 3 is connected to one end of the shaft 5. Furthermore, one (or more) fins or plate members 86 are provided between the head 3 and the shaft 5. With such a configuration, since the fin or plate member 86 vibrates in a plane when the golf ball is hit, the hitting feel can be improved, and the strength of the attachment of the head 3 to the shaft 5 or the hosel 4 can be reinforced. Note that, as shown in FIGS. 27, 28(A), and (B), a lighting member 86B including an LED or a fluorescent material may be disposed on the top surface 86A of the fin or plate member 86. In this way, the trajectory of the head 3 can be sufficiently confirmed even when practicing in the dark.

[V. Description of fifth embodiment]
The fifth embodiment is a golf club 1 equipped with a vibration transmission member 20 and an auxiliary vibration transmission member 30, in which pickups 20A, 30A (first pickup 20A, second pickup 30A) for detecting these vibrations are built-in. It is. The first pickup 20A is a sensor that detects the vibration of the vibration transmission member 20 and converts it into an electric signal, and is provided at a position close to the vibration transmission member 20. Similarly, the second pickup 30A is a sensor that detects the vibration of the auxiliary vibration transmission member 30 and converts it into an electric signal, and is provided at a position close to the auxiliary vibration transmission member 30. These pickups 20A, 30A generate electric signals corresponding to the vibrations of the vibration transmission members 20, 30, for example like an electric guitar.

The golf club 1 shown in FIG. 29 includes a hosel cavity 8, a shaft cavity 9, a grip cavity 10, a vibration transmission member 20, and a first pickup 20A. The vibration transmission member 20 is a member that transmits vibrations generated on the striking surface 2 to the grip 6. The vibration transmission member 20 is formed into an elongated shape and is provided inside the hosel cavity 8, the shaft cavity 9, and the grip cavity 10. As a specific example of the vibration transmission member 20, a wire (for example, a linear member containing a magnetic material such as a steel wire or a piano wire) is used. The method of attaching the vibration transmission member 20 is as described in the above embodiment.

Further, the golf club 1 shown in FIG. 30 includes a hosel cavity 8, a shaft cavity 9, a grip cavity 10, a vibration transmission member 20, an auxiliary vibration transmission member 30, a first pickup 20A, and a second pickup 30A. The auxiliary vibration transmission member 30 is a member that transmits vibrations generated on the striking surface 2 to the vibration transmission member 20, and is provided inside the head cavity 7. As a specific example of the auxiliary vibration transmission member 30, a wire similar to the vibration transmission member 20 (for example, a linear member containing a magnetic material such as a steel wire or a piano wire) is used. The attachment procedure for the vibration transmission members 20 and 30 is as described in the above embodiment.

The electrical signal detected by the first pickup 20A is amplified by an amplifier 90A built in the golf club 1, and transmitted to a speaker 91A, as shown in FIG. 36. Further, the electrical signal detected by the second pickup 30A may be amplified by the same amplifier 90A, for example, and transmitted to the speaker 91A. Alternatively, it may be amplified by an amplifier 90B that is different from the amplifier 90A, or the amplified electrical signal may be transmitted to a speaker 91B that is different from the speaker 91A. The speakers 91A and 91B output the input electrical signals as sound. As a result, a tapping sound is output from the speakers 91A and 91B. This hitting sound can be adjusted by changing the amplification characteristics of the amplifiers 90A and 90B. Note that, if necessary, filters may be interposed before and after the amplifiers 90A and 90B to remove noise and unnecessary frequency components from the electrical signals.

In the golf club 1 shown in FIG. 29, vibrations generated on the striking surface 2 of the head 3 are not only transmitted to the grip 6 via the hosel 4 and shaft 5, but also transmitted to the grip 6 via the vibration transmission member 20. be done. By incorporating the vibration transmission member 20 into the golf club 1, the vibrations of the hitting surface 2 can be efficiently transmitted to the grip 6 without being attenuated. Therefore, a good hitting feel can be provided to the user, and the hitting feeling can be improved compared to existing golf clubs. Further, the vibration of the vibration transmission member 20 is detected by the first pickup 20A, this vibration is converted into an electric signal, and after being amplified by the amplifier 90A, it is output as sound from the speaker 91A. As a result, a hitting sound is output together with the above-mentioned hitting feel, and the synergistic effect thereof can provide a good hitting feeling to the user.

In the golf club 1 shown in FIG. 30, not only the vibration transmission member 20 is built in the hosel cavity 8 and the shaft cavity 9, but also the auxiliary vibration transmission member 30 is built in the head cavity 7 (fourth cavity). be done. In this way, by incorporating the auxiliary vibration transmission member 30 into the head 3, the vibration generated on the striking surface 2 of the head 3 can be efficiently transmitted to the vibration transmission member 20 without being attenuated, and the hitting feel can be further improved. Further, the vibration of the auxiliary vibration transmission member 30 is detected by the second pickup 30A, and sound corresponding to this vibration is output from the speakers 91A and 91B. As a result, a hitting sound is output together with the above-mentioned hitting feel, and the synergistic effect thereof can provide a good hitting feeling to the user.

In particular, when the vibration transmission member 20 and the auxiliary vibration transmission member 30 are provided, each pickup 20A, 30A detects the vibration transmitted to the vibration transmission member 20 and the auxiliary vibration transmission member 30, and generates electricity caused by each vibration. The signals are amplified by amplifiers 90A and 90B, filtered as appropriate, and emitted as hitting sounds from speakers 91A and 91B. Thereby, it is possible to provide the user with an even better hitting feeling.

Note that the speakers 91A and 91B can be shared, and the amplifiers 90A and 90B can also be shared as necessary. As shown in FIG. 31, in a golf club 1 including a plurality of vibration transmission members 20 and auxiliary vibration transmission members 30, each pickup 20A, 30A is separately connected to each vibration transmission member 20 and auxiliary vibration transmission member 30. It may be provided separately or for shared use.

Further, as shown in FIG. 32, in the golf club 1 without the hosel 4, a first pickup 20A may be provided near the vibration transmission member 20. Further, as shown in FIGS. 33 and 35, in the golf club 1 without the hosel 4, a first pickup 20A is provided near the vibration transmission member 20, and a second pickup 20A is provided near the auxiliary vibration transmission member 30. 30A may be provided. Further, as shown in FIG. 34, in the golf club 1 equipped with the planar vibration member 15, the planar vibration member 15 and the in-head wire 30 (auxiliary vibration transmission member) are connected by the connection wire 40, and the connection wire 40 is connected to the connection wire 40. A third pickup 40A may be provided nearby. The third pickup 40A is a sensor having the same function as the other pickups 20A and 30A.
That is, as shown in FIG. 36, the electrical signal detected by the third pickup 40A is amplified by an amplifier 90C built in the golf club 1 and transmitted to a speaker 91C.
In this case as well, the speakers 91A to 91C can be shared, and the amplifiers 90A to 90C can also be shared if necessary. As shown in FIG. 34, in a golf club 1 having a plurality of connection wires 40, a pickup 40A may be provided separately for each connection wire 40, or may be used in common.

These golf clubs 1 also provide the same functions and effects as those described for the golf club 1 having the hosel 4 described above. Of course, even in these examples, the speakers 91A to 91C can be shared, and the amplifiers 90A to 90C can also be used in common, if necessary. In addition, in the case where a plurality of vibration transmission members 20, auxiliary vibration transmission members 30, and connection wires 40 are provided, each pickup 20A, 30A, 40A is separately provided for each vibration transmission member 20, auxiliary vibration transmission member 30, and connection wire 40. It may be provided separately or for shared use.

In this embodiment, the amplifiers 90A to 90C and the speakers 91A to 91C may be replaced by smartphones or computers (information terminals, etc.). In this case, the speakers 91A to 91C may be in the form of earphones or headphones and may be worn in the user's ears. Further, the connection between each pickup 20A, 30A, 40A and the amplifiers 90A to 90C may be a wired connection or a wireless connection. Similarly, the connections between amplifiers 90A-90C and speakers 91A-91C may be wired or wireless.

[VI. Description of sixth embodiment]
In the sixth embodiment, a liquid crystal display 100 is provided on the upper surface of the head 3 of the golf club 1 as an electric display member capable of indicating the direction in which the golf ball is launched. The liquid crystal display 100 is configured as a color liquid crystal display, for example, and can display color images. Furthermore, the liquid crystal display 100 can be applied to a golf club 1 with a hosel 4, as shown in FIG. 37(A), or a golf club 1 without a hosel 4, as shown in FIG. 37(B). is also applicable.

The liquid crystal display 100 is connected to an indicator 102 (input device) via a controller 101, as shown in FIG. When a display instruction is given using the indicator 102, this instruction is transmitted to the liquid crystal display 100 via the controller 101, and the launching direction of the golf ball is displayed on the liquid crystal display 100. In this embodiment, the other components are substantially the same as those in the previously described embodiments, so detailed explanations will be omitted.

The display on the liquid crystal display 100 may be an arrow indicating the direction in which the golf ball is launched, or may be a series of a plurality of circles. In this case, the circle may become smaller toward the tip side indicating the direction. Such a configuration not only improves the hitting feel but also allows the liquid crystal display 100 to freely display the direction in which the golf ball is launched, improving convenience.

Note that the indicator 102 and the controller 101 can be replaced with a smartphone. In this case, it is preferable to use a wireless line for connection between the controller 101 and the liquid crystal display 100. Furthermore, the content of the instruction input to the indicator 102 may be inputtable by, for example, a user of the golf club 1, an instructor (trainer), or an assistant (caddie).

In this embodiment, in addition to displaying the direction in which the golf ball is launched on the liquid crystal display 100, a rhythm box function may be installed to notify the rhythm when launching the golf ball. In this case, the controller 101 has one of a rhythm box function and a synthetic voice generation function to notify the rhythm when launching the golf ball, and the controller 101 has either a rhythm box function or a synthetic voice generation function. A speaker 100A that outputs one of the rhythm sound and the synthesized voice generated by one of the functions is provided (see FIG. 38).

Further, one or more impact sensors 103 are provided in the head 3, and when the golf ball hits the hitting surface 2, the impact data is detected by the impact sensor 103 and collected by the controller 101, and the impact data is collected by the controller 101. It can also be displayed on the liquid crystal display 100 in the form of numerical values, graphs, etc. (see FIG. 38).

Furthermore, if it is possible to detect the difference between the hitting data of the sweet pot and the other parts of the hitting surface 2, the controller 101 can also detect the impact data when the golf ball hits the sweet pot and when it does not hit the sweet pot. It is possible to display numerical values and graphs on the liquid crystal display 100 through the display. In this case, it is preferable that numerical or graphical impact data be displayed after the golf ball launch direction is displayed. Alternatively, the launch direction and impact data may be displayed alternately at a predetermined period.

[VII. others]
FIGS. 39(A) and 39(B) are side views for explaining modified examples of the golf club 1 described in the first to sixth embodiments. One of the plurality of adapters 3A, 3B is detachably attached to the lower surface side of the head 3 of the golf club 1. These adapters 3A and 3B are available in a plurality of types having different shapes, masses, centers of gravity, etc., for example. For example, the adapter 3A shown in FIG. 39(B) is used when it is desired to increase the lie angle L more than the adapter 3B shown in FIG. 39(A). Although FIGS. 39A and 39B illustrate the golf club 1 without the hosel 4, the presence or absence of the hosel 4 is not a problem.

It is assumed that, for example, a user of the golf club 1 or an instructor (trainer) selects one of the adapters 3A and 3B and attaches it to the lower surface side of the head 3. The adapters 3A, 3B are preferably attached to the lower surface of the head 3 via an easily attachable/detachable locking structure (clip) or fastening structure (screw). By using adapters 3A and 3B suitable for the physique and batting form of the user of the golf club 1, it becomes easier to optimize the swing trajectory of the golf club 1, and it becomes possible to improve the practice effect. Note that the lie angle L means an angle closer to the user than the shaft 5 among the angles that the shaft 5 makes with respect to a horizontal plane when the hitting surface 2 of the head 3 is viewed horizontally from the front.
Note that the examples shown in FIGS. 39(A) and 39(B) can be applied to any of the golf clubs described in the first to sixth embodiments, as described above, and in that case, the adapters 3A, 3B and It goes without saying that the configuration other than the method of attachment is the same as that of each embodiment.

The vibration sensor 81, vibration device 82, and speaker 82A described with reference to FIG. 15 in the first embodiment can be applied to any of the second to sixth embodiments. Moreover, the various vibration transmission members 20 and auxiliary vibration transmission members 30 shown in the first and second embodiments can of course be applied to the golf clubs of the third, fourth, and sixth embodiments. Furthermore, it is of course possible to provide the insert described in the third embodiment on the striking surface 2 of the head 3 of the first, second, fourth to sixth embodiments.

Also, in the first to third, fifth, and sixth embodiments, one or more fins or plate members 86 are provided between the head 3 and one end of the shaft 5 or the hosel 4, similarly to the fourth embodiment. Needless to say, it is possible to provide Further, in each of the first to sixth embodiments described above, a putter is illustrated as an example of the golf club 1, but it is of course applicable to other golf clubs (wood, hybrid, utility, etc.). In each of the first to sixth embodiments described above, members denoted by the same reference numerals indicate the same elements.
Further, although not shown, a circuit battery for amplifying signals detected by the sensor or pickup and outputting the amplified signals by a speaker is provided inside or outside the golf club as necessary.
When part of the above circuit is used for a smartphone, the battery for the smartphone also serves as the battery for the above circuit.

Note that the circuit shown in FIG. 36 may be provided with a switch SW1 (indicated by a broken line in FIG. 36). The position where the switch SW1 is interposed is set, for example, between the pickups 20A, 30A, 40A and the amplifiers 90A, 90B, 90C, or between the amplifiers 90A, 90B, 90C and the speakers 91A, 91B, 91C. When the switch is turned on, sounds based on information detected by the pickups 20A, 30A, 40A and sensors are amplified by amplifiers 90A, 90B, 90C, and output from speakers 91A, 91B, 91C. On the other hand, when the switch is off, no such sound is output. The user can select the on/off state of the switch SW1 as appropriate. For example, the switch SW1 is located so that it can be operated from the outer surface of the golf club 1. Alternatively, a switch SW1 that can be turned on and off by wireless communication is used.

Furthermore, if a changeover switch SW2 is installed in the circuit shown in FIG. is displayed and the switch SW2 is switched to connect to the speaker 100A, the rhythm sound and synthesized voice generated by either the rhythm box function or the synthesized voice generation function of the controller 101 will be transmitted from the speaker 100A. If one of the two is output and the switch SW2 is switched to connect to both the liquid crystal display 100 and the speaker 100A, the launch direction, numerical and graphed hitting data are displayed on the liquid crystal display 100, and the speaker 100A is output. One of the rhythm sound and the synthesized voice is output from the output.

Of course, if the switch SW2 is set to the so-called off state in which both the liquid crystal display 100 and the speaker 100A are not connected, the display on the liquid crystal display 100 and the rhythm sound and synthesized voice from the speaker 100A are not output.
Note that in FIG. 38, when only the liquid crystal display 100 is provided, the switch SW2 may be an on/off switch.
Furthermore, the present golf club 1 can employ various manufacturing methods in addition to or in place of normal golf club manufacturing methods.
For example, it can be manufactured using a 3D printer, a seamless welding method, a casting method, or an appropriate combination of these methods.

1 Golf club (putter)
2,2' Batting surface (face)
3 Heads 3A, 3B Adapter 4 Hosel 4A Top surface 4B Lighting member 5 Shaft 6 Grip 7 Head cavity (fourth cavity)
8 Hosel cavity (first cavity)
9 Shaft cavity (second cavity)
10 Grip cavity (third cavity)
11 Opening 12 Head opening 13 Fin 13A Top surface 13B Lighting member 14 Head main body 15 Planar vibration member 16 Net member 17 Membrane member 18 Frame 19 String 20 Vibration transmission member (wire in shaft)
20A First pickup 21 Grip upper end plate 22 Fixture 23 Grip inner plate (mounting member)
24 Grip internal fixture (mounting member)
25 Binding portion 26 Mass member 27 Connection fitting 28 Grip upper end fixing device 30 Auxiliary vibration transmission member (wire in head)
30A Second pickup 31 Head tip 32 Head base end 33 Head tip side fixture 34 Head base side fixture 35 Head inner plate 36 Head inner fixture 37 Binding section 40 Connection wire 40A Third pickup 41 Rack 42 Pinion 43 Motor 44 Winding device (mounting member)
51 Lower side 52 First side 53 Second side 54 Upper side 55 Telescopic mechanism 56 Telescopic mechanism 57 Telescopic mechanism 58 Slide mechanism 61 Weight member 62 Weight motor (drive source)
81 Vibration sensor 82 Vibration device 82A Speaker 86 Fin or plate member 86A Top surface 86B Lighting member 90A, 90B, 90C Amplifier 91A, 91B, 90C Speaker 100 Liquid crystal display 100A Speaker 101 Controller 102 Indicator 103 Shock sensor SW1, SW2 Switch

Claims (58)

a head having a hitting surface for hitting a golf ball;
a shaft formed into an axial shape;
a hosel connecting one end of the shaft and the head;
a grip provided at the other end of the shaft and held by a user;
A golf club, wherein the hosel is irreplaceably formed integrally with the head and the shaft. 2. The golf club according to claim 1, wherein the hosel is formed into a plate shape that extends in a plane parallel to the hitting surface and has a constant thickness. The golf club according to claim 1 or 2, wherein the hosel is formed into a rectangular flat plate shape. 3. The golf club according to claim 1, wherein the hosel is formed into a bent plate shape that is curved so that the side closer to the hitting surface is inward in a longitudinal section perpendicular to the hitting surface. The golf club according to any one of claims 1 to 4, wherein the hosel incorporates a vibration sensor that detects vibrations generated on the hitting surface. The golf club according to any one of claims 1 to 5, wherein the hosel has a first cavity formed hollow inside. 7. The golf club according to claim 6, wherein the shaft has a hollow second cavity communicating with the first cavity. 8. The golf club according to claim 7, wherein the grip has a third hollow portion therein that is formed to be hollow and communicates with the second hollow portion. A golf club according to any one of claims 1 to 8, characterized in that the grip is formed integrally with the shaft. Claim 5 or at least claims 6 to 9 referring to claim 5, wherein the grip incorporates a vibration device that vibrates or a speaker that emits sound based on information detected by the vibration sensor. The golf club according to any one of the items. a vibration transmission member that is formed in an elongated shape, has one end fixed to the head, is built into the second cavity and the third cavity, and transmits vibrations generated on the striking surface to the grip;
Claim 8 or at least a claim citing Claim 8, characterized by comprising a mounting member provided inside the third cavity and connecting the other end of the vibration transmission member and the grip. 11. The golf club according to any one of items 9 to 10. 12. The golf club according to claim 11, wherein the mounting member is provided so that its position can be adjusted in the extending direction of the grip. 13. The golf club according to claim 11 or 12, wherein the vibration transmission member is comprised of any one of a wire, a string, a rod member, and a linear elastic member. The golf club according to any one of claims 11 to 13, wherein the attachment member is formed in a membrane shape that is expanded in a direction intersecting the extending direction of the grip. The golf club according to any one of claims 11 to 14, characterized in that the vibration transmission member has a mass member for amplifying vibrations. Claim 6 or at least any one of Claims 7 to 15 citing Claim 6, wherein the head has a fourth cavity formed hollow and communicating with the first cavity. The golf club according to item 1. The golf ball according to at least claim 16, further comprising an auxiliary vibration transmission member that is provided inside the fourth cavity and that transmits vibrations generated on the hitting surface to the vibration transmission member. club. The golf club according to any one of claims 1 to 17, wherein the head has a weight member for changing the position of the center of gravity of the head. comprising a drive source for moving the weight member,
The weight member is provided inside a hollow cylindrical recess formed in the upper surface of the head,
19. The golf club according to claim 18, wherein the drive source rotationally drives the weight member along an inner circumferential surface of the recess. A golf club comprising a shaft, a head provided at one end of the shaft and having a golf ball hitting surface, and a grip provided at the other end of the shaft,
The shaft has a shaft cavity formed hollow inside, and
The grip has a hollow grip cavity communicating with the shaft cavity, and
a vibration transmission member that is formed in an elongated shape, has one end fixed to the head, is built into the shaft cavity and the grip cavity, and transmits vibrations generated at the striking surface to the grip;
A golf club, comprising: a mounting member provided inside the grip cavity and connecting the other end of the vibration transmission member and the grip. 21. The golf club according to claim 20, wherein the mounting member is provided so that its position can be adjusted in the extending direction of the grip. 22. The golf club according to claim 20 or 21, wherein the vibration transmission member is comprised of any one of a wire, a string, a rod member, and a linear elastic member. The golf club according to any one of claims 20 to 22, wherein the attachment member is formed in a membrane shape that extends in a direction crossing the extending direction of the grip. The golf club according to any one of claims 20 to 23, characterized in that the vibration transmission member has a mass member for amplifying vibrations. The head has a hollow head cavity communicating with the shaft cavity, and an auxiliary device is provided inside the head cavity to transmit vibrations generated on the striking surface to the vibration transmission member. The golf club according to at least one of claims 20 to 24, characterized in that it comprises a vibration transmission member. A golf club comprising a shaft, a head provided at one end of the shaft and having a golf ball hitting surface, and a grip provided at the other end of the shaft,
The shaft has a shaft cavity formed hollow inside, and
The grip has a hollow grip cavity communicating with the shaft cavity, and
a vibration transmission member that is formed in an elongated shape, has one end fixed to the head, is built into the shaft cavity and the grip cavity, and transmits vibrations generated at the striking surface to the grip;
a mounting member provided inside the grip cavity and connecting the other end of the vibration transmission member and the grip;
The vibration transmission member is configured to contain a magnetic material,
A golf club characterized in that a first pickup that detects and electrically converts vibrations transmitted by the vibration transmission member is provided close to the vibration transmission member. 27. The golf club according to claim 26, wherein the mounting member is provided so that its position can be adjusted in the extending direction of the grip. 28. The golf club according to claim 27, wherein the attachment member is formed in a membrane shape that extends in a direction intersecting the extending direction of the grip. The golf club according to any one of claims 26 to 28, characterized in that the vibration transmission member has a mass member for amplifying vibrations. The head has a hollow head cavity inside that communicates with the shaft cavity,
an auxiliary vibration transmission member provided inside the head cavity and configured to transmit vibrations generated on the striking surface to the vibration transmission member;
The auxiliary vibration transmission member is configured to contain a magnetic material,
Any one of claims 26 to 29, characterized in that a second pickup that detects the vibration transmitted by the auxiliary vibration transmission member and converts it into an electric signal is provided in the vicinity of the auxiliary vibration transmission member. The golf club described in section. The golf club according to any one of claims 26 to 30, characterized in that a first amplifier for amplifying the electrical signal detected by the first pickup is provided inside or outside the golf club. The golf club according to any one of claims 26 to 31, characterized in that a second amplifier for amplifying the electrical signal detected by the second pickup is provided inside or outside the golf club. A golf club comprising a shaft, a head provided at one end of the shaft and having a golf ball hitting surface, and a grip provided at the other end of the shaft,
A golf club, characterized in that the insert is provided on the hitting surface and is formed of a planar vibrating member formed in a planar shape that vibrates in a planar manner upon collision with the golf ball and applies a reaction force to the golf ball. 34. The golf club according to claim 33, wherein the planar vibration member has a net member formed by weaving strings into a net shape inside a frame. 35. The golf club according to claim 34, wherein the string includes at least one of natural fibers, synthetic fibers, and elastic fibers. The golf club according to any one of claims 33 to 35, wherein the surface vibrating member has a membrane member affixed to the hitting surface. 37. The golf club according to claim 36, wherein the film member includes at least one of a metal plate, a resin plate, a rubber film, and a leather film. 38. The golf club according to any one of claims 33 to 37, wherein the planar vibration member is removably attached to the head. The golf club according to any one of claims 33 to 38, wherein the head has a head cavity formed with a hollow interior. 40. The golf club according to claim 39, wherein the head has an in-head wire stretched inside the head cavity and connected to the planar vibrating member via a connecting wire. 41. The golf club according to claim 40, wherein the shaft has a shaft cavity formed with a hollow interior. 42. The golf club of claim 41, wherein the head has an in-shaft wire stretched within the shaft cavity and coupled to the in-head wire. 43. The golf club according to claim 42, wherein the in-shaft wire is stretched to connect the grip and the in-head wire to transmit vibrations of the planar vibration member to the grip. a head having a hitting surface for hitting a golf ball;
a shaft formed into an axial shape;
a hosel connecting one end of the shaft and the head;
a grip provided at the other end of the shaft and held by a user;
A golf club characterized in that a fin or a plate member is provided between the head and the hosel. a head having a hitting surface for hitting a golf ball;
a shaft formed into an axial shape;
a grip provided at the other end of the shaft and held by a user;
A golf club comprising a fin or a plate member between the head and one end of the shaft. 46. The golf club according to claim 44 or 45, wherein a lighting member is arranged in a planar or chain form on the top surface of the fin or plate member. The golf club according to any one of claims 1 to 43, characterized in that a fin is provided upright on the upper surface of the head. 48. The golf club according to claim 47, wherein a lighting member is arranged on the top surface of the fin in a planar or chain shape. The golf club according to any one of claims 1 to 48, characterized in that an electric display member is provided on the upper surface of the head. The display member is a liquid crystal display capable of displaying at least one information of the launch direction of the golf ball and impact data when the golf ball hits the hitting surface according to an external instruction. 50. The golf club according to claim 49. When launching the golf ball, one of a rhythm sound and a synthetic voice generated by a controller having a rhythm box function that notifies the rhythm, and one of the rhythm box function and the synthetic voice generation function of the controller. The golf club according to any one of claims 1 to 50, further comprising a speaker that outputs. The golf club according to any one of claims 1 to 51, characterized in that an adapter suitable for the user's physique and hitting form is detachably attached to the lower surface of the head. An insert that is removably attached to the hitting surface of a golf club, comprising a shaft, a head provided at one end of the shaft and having a golf ball hitting surface, and a grip provided at the other end of the shaft. ,
An insert for a golf club, comprising a planar vibration member formed in a planar shape that vibrates in a planar manner upon collision with the golf ball and provides a reaction force to the golf ball. 54. The golf club insert according to claim 53, wherein the planar vibration member has a net member formed by weaving strings into a net shape inside a frame. 55. The golf club insert according to claim 54, wherein the string includes at least one of natural fibers, synthetic fibers, and elastic fibers. The golf club insert according to any one of claims 53 to 55, wherein the surface vibrating member has a membrane member affixed to the hitting surface. 57. The golf club insert according to claim 56, wherein the membrane member includes at least one of a metal plate, a resin plate, a rubber membrane, and a leather membrane. The golf club insert according to any one of claims 53 to 55, wherein the planar vibrating member is configured as a vibrating member having a gong structure provided in the head with a fishing structure.

Images