US20240399222A1 - Golf club and golf club insert - Google Patents

Golf club and golf club insert Download PDF

Info

Publication number
US20240399222A1
US20240399222A1 US18/804,423 US202418804423A US2024399222A1 US 20240399222 A1 US20240399222 A1 US 20240399222A1 US 202418804423 A US202418804423 A US 202418804423A US 2024399222 A1 US2024399222 A1 US 2024399222A1
Authority
US
United States
Prior art keywords
vibration
impact
head
golf club
hosel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US18/804,423
Other languages
English (en)
Inventor
Kazuya Atsumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atsumi Bunji Shoten YK
Original Assignee
Atsumi Bunji Shoten YK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atsumi Bunji Shoten YK filed Critical Atsumi Bunji Shoten YK
Assigned to YUGEN KAISHA ATSUMI BUNJI SHOTEN reassignment YUGEN KAISHA ATSUMI BUNJI SHOTEN ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ATSUMI, Kazuya
Publication of US20240399222A1 publication Critical patent/US20240399222A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/14—Handles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/02—Joint structures between the head and the shaft
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0466—Heads wood-type
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0487—Heads for putters
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/06—Heads adjustable
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/10—Non-metallic shafts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/12—Metallic shafts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/002—Resonance frequency related characteristics
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/02—Ballast means for adjusting the centre of mass
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/42—Devices for measuring, verifying, correcting or customising the inherent characteristics of golf clubs, bats, rackets or the like, e.g. measuring the maximum torque a batting shaft can withstand
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/46—Measurement devices associated with golf clubs, bats, rackets or the like for measuring physical parameters relating to sporting activity, e.g. baseball bats with impact indicators or bracelets for measuring the golf swing
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/36—Training appliances or apparatus for special sports for golf
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/36—Training appliances or apparatus for special sports for golf
    • A63B69/3623—Training appliances or apparatus for special sports for golf for driving
    • A63B69/3632—Clubs or attachments on clubs, e.g. for measuring, aligning
    • A63B69/3635—Clubs or attachments on clubs, e.g. for measuring, aligning with sound-emitting source
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B2053/0491—Heads with added weights, e.g. changeable, replaceable
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
    • A63B2071/0625—Emitting sound, noise or music
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B2071/0655—Tactile feedback

Definitions

  • the present disclosure relates to a golf club for striking a golf ball and a golf club insert that is detachably provided on the golf club.
  • a related golf club such as a wood, an iron, a hybrid, a utility, and a putter
  • a shaft with a grip is connected to a head via a hosel.
  • the hosel is, for example, detachably connected to the shaft and the head. This configuration makes it easy to replace a head and a shaft (see Patent Documents 1 and 2).
  • a golf club not having a hosel which is one in which a shaft with a grip is connected to a head, has also been known to the public.
  • JP2021-058337 A and JP2014-036894 A For example, a related art is disclosed in JP2021-058337 A and JP2014-036894 A.
  • a golf club having a hosel In a golf club having a hosel, vibration generated when the golf ball is hit is transmitted to the palm of the user (golfer) that holds the grip via the shaft and recognized as part of impact feeling of the golf club.
  • the hosel interposed between the shaft and the head may act to hinder the transmission of such vibration.
  • a golf club having a hosel less brings preferable impact feeling than a golf club 1 not having a hosel.
  • the “impact feeling” means sense of touch and the shooting feeling that the user experiences when striking a golf ball.
  • Typical impact feeling includes sensory comfort (feeling) of the impact, such as sense of impact, feeling of control and sense of accomplishment as well as physical vibration.
  • a golf club not having a hosel has difficulty in bringing preferable impact feeling unless being contrived in some extent.
  • one of the objects of the present embodiment is to provide a golf club and a golf club insert that can enhance the impact feeling.
  • actions and effects that are derived from each configuration “embodiment(s) to carry out disclosure” to be described below and that related techniques do not attain can be regarded as other object of the present embodiment.
  • the present embodiment can be achieved in the following embodiments and applications.
  • the disclosed golf club and golf club insert solves at least part of the above problems.
  • the present golf club comprises a shaft formed in a shaft shape; a head being provided at a first end portion side of the shaft and having a striking surface that strikes a golf ball; a grip being provided at a second end portion side of the shaft and being gripped by a user; a hosel that connects the first end portion of the shaft to the head, and that is integrally formed with the head and the shaft in an unreplaceable state; and an impact-vibration/impact-sound emphasizing mechanism that emphasizes impact vibration or impact sound generated when the striking surface strikes the golf ball and transmits the emphasized impact vibration or emphasized impact sound to the user, wherein the impact-vibration/impact-sound emphasizing mechanism comprises a diaphragm member that is attached to the hosel and that emphasizes the impact vibration generated when the golf ball is hit.
  • the present golf club comprises a shaft formed in a shaft shape; a head being provided at a first end portion side of the shaft and having a striking surface that strikes a golf ball; a grip being provided at a second end portion side of the shaft and being gripped by a user; a hosel that connects the first end portion of the shaft to the head; and an impact-vibration/impact-sound emphasizing mechanism being provided inside the golf club, that emphasizes impact vibration or impact sound generated when the striking surface strikes the golf ball and transmits the emphasized impact vibration or emphasized impact sound to the user, wherein the impact-vibration/impact-sound emphasizing mechanism comprises a vibration transmitting member formed in an elongated shape, having a first end being fixed to the head and transmitting vibration generated at the striking surface to the grip, and an installing member connecting a second end portion of the vibration transmitting member to the grip, the installing member is provided such that the position thereof is adjustable in an extending direction of the grip, and the installing member comprises a winding device that winds the second end portion
  • the present golf club comprises a head having a striking surface that strikes a golf ball; a shaft formed in a shaft shape; a hosel that connects a first end portion of the shaft to the head; a grip being provided at a second end portion of the shaft and being gripped by a user; and a fin or a plate-shaped member between the head and the hosel, wherein the fin or the plate-shaped member is formed by a plate-like member and is fixed so as to connect the head to the hosel in a direction substantially parallel to the striking surface.
  • the disclosed golf club can emphasize the impact vibration and the impact sound generated on the head when the golf ball is hit, so that the impact feeling can be enhanced.
  • the disclosed golf club if being variously contrived, can efficiently transmits the impact vibration generated on the head when the golf ball is hit to the shaft even when the golf club is not provided with a hosel, so that the impact feeling can be enhanced.
  • the disclosed golf club not having a hosel can efficiently transmit the impact vibration generated on the head when the golf ball to the shaft, so that the impact feeling can be enhanced.
  • FIG. 1 A is a perspective view illustrating a golf club according to a first embodiment
  • FIG. 1 B is a side view illustrating a modification of the golf club of the first embodiment
  • FIGS. 2 A to 2 C are perspective views illustrating various types of a head of the golf club according to the first embodiment
  • FIGS. 3 A to 3 F are perspective views illustrating modifications of a hosel of the golf club of the first embodiment
  • FIGS. 4 A to 4 D are perspective view illustrating modifications of a hosel of the golf club of the first embodiment
  • FIGS. 5 A to 5 E are side view illustrating modifications of a hosel of the golf club of the first embodiment
  • FIGS. 6 A and 6 B are cross-sectional views illustrating an internal structure of the golf club of the first embodiment
  • FIGS. 7 A and 7 B are cross-sectional views illustrating modifications of the golf club of the first embodiment
  • FIGS. 8 A and 8 B are cross-sectional views illustrating modifications of the golf club of the first embodiment
  • FIGS. 9 A and 9 B are cross-sectional views illustrating modifications of the golf club of the first embodiment
  • FIG. 10 is a cross-sectional view illustrating modifications of the golf club of the first embodiment
  • FIG. 11 is a cross-sectional view illustrating modifications of the golf club of the first embodiment
  • FIG. 12 is a cross-sectional view illustrating modifications of the golf club of the first embodiment
  • FIG. 13 is a cross-sectional view illustrating modifications of the golf club of the first embodiment
  • FIGS. 14 A and 14 B are perspective views illustrating modifications of the head of the golf club of the first embodiment
  • FIG. 15 is a perspective view illustrating a modification of the golf club of the first embodiment
  • FIGS. 16 A to 16 E are perspective views illustrating modifications of the golf club of the first embodiment
  • FIGS. 17 A to 17 H are top views illustrating modifications of the golf club of the first embodiment
  • FIGS. 18 A and 18 B are cross-sectional views illustrating modifications of the golf club of the first embodiment
  • FIG. 19 is a cross-sectional view illustrating the golf club according to a second embodiment
  • FIG. 20 is a cross-sectional view illustrating a modification of the golf club of the second embodiment
  • FIG. 21 is a cross-sectional view illustrating a modification of the golf club of the second embodiment
  • FIG. 22 is a cross-sectional view illustrating a modification of the golf club of the second embodiment
  • FIG. 23 is an exploded perspective view of a golf club according to a third embodiment
  • FIG. 24 is a perspective view of a net member of the golf club of the third embodiment.
  • FIG. 25 is a cross-sectional view of a golf club according to the third embodiment.
  • FIG. 26 is a cross-sectional view illustrating a modification of the golf club of the third embodiment
  • FIG. 27 is a perspective view illustrating a golf club according to a fourth embodiment
  • FIGS. 28 A and 28 B are cross-sectional views illustrating modifications of the golf club of the fourth embodiment
  • FIG. 29 is a cross-sectional view illustrating a golf club according to a fifth embodiment
  • FIG. 30 is a cross-sectional view illustrating a modification of the golf club of the fifth embodiment
  • FIG. 31 is a cross-sectional view illustrating a modification of the golf club of the fifth embodiment
  • FIG. 32 is a cross-sectional view illustrating a modification of the golf club of the fifth embodiment
  • FIG. 33 is a cross-sectional view illustrating a modification of the golf club of the fifth embodiment
  • FIG. 34 is a cross-sectional view illustrating a modification of the golf club of the fifth embodiment
  • FIG. 35 is a cross-sectional view illustrating a modification of the golf club of the fifth embodiment
  • FIG. 36 is a process block diagram applied to the golf club of the fifth embodiment.
  • FIG. 37 A is a partial perspective view illustrating a golf club according to a sixth embodiment
  • FIG. 37 B is a partial perspective view illustrating a modification of the golf club of the sixth embodiment
  • FIG. 38 is a process block diagram applied to the golf club of the sixth embodiment.
  • FIGS. 39 A and 39 B are side views illustrating the golf club according to modifications of the first to sixth embodiments.
  • FIGS. 40 A to 40 C are perspective views illustrating a golf club not having a hosel according to a seventh embodiment
  • FIGS. 41 A to 41 C are diagrams illustrating a diaphragm member
  • FIGS. 42 A to 42 C are diagrams illustrating a diaphragm member
  • FIGS. 43 A to 43 C are perspective views illustrating a golf club with a hosel according to a seventh embodiment
  • FIGS. 44 A to 44 D are diagrams illustrating a diaphragm member
  • FIGS. 45 A to 45 E are diagrams illustrating a diaphragm member
  • FIGS. 46 A and 46 B are diagrams illustrating a diaphragm member
  • FIGS. 47 A to 47 F are diagrams illustrating modifications of the hosel
  • FIGS. 48 A to 48 D are diagrams illustrating modifications of the diaphragm member
  • FIGS. 49 A to 49 D are diagrams illustrating other modifications of the diaphragm member
  • FIGS. 50 A to 50 E are diagrams illustrating further other modifications of the diaphragm member
  • FIGS. 51 A and 51 B are diagrams illustrating the head and the hosel constituting a frame structure
  • FIGS. 52 A and 52 B are diagrams illustrating modifications of the head and the hosel constituting the frame structure
  • FIGS. 53 A to 53 D are diagrams illustrating modifications of the head and the hosel constituting the frame structure
  • FIGS. 54 A and 54 B are diagrams illustrating modifications of the head and the hosel constituting the frame structure
  • FIGS. 55 A to 55 F are diagrams illustrating modifications of the diaphragm member
  • FIGS. 56 A to 56 H are diagrams illustrating modifications of the diaphragm member
  • FIGS. 57 A to 57 C are diagrams illustrating modifications of the diaphragm member
  • FIGS. 58 A to 58 E are diagrams illustrating modifications of the diaphragm member
  • FIGS. 59 A to 59 D are diagrams illustrating a golf club according to an eighth embodiment
  • FIGS. 60 A to 60 C are diagrams illustrating modifications of the diaphragm member
  • FIGS. 62 A to 62 D are diagrams illustrating modifications of the diaphragm member
  • FIGS. 63 A to 63 D are diagrams illustrating modifications of the diaphragm member
  • FIGS. 64 A and 64 B are diagrams illustrating a vibration transmitting rib of a ninth embodiment
  • FIGS. 66 A and 66 B are diagrams illustrating a shaft provided with a vibration emphasizing member
  • FIG. 67 is a diagram illustrating another example of the configuration of an impact-vibration/impact-sound emphasizing mechanism
  • FIGS. 68 A and 68 B are diagrams illustrating modifications of FIGS. 65 D and 65 E ;
  • FIGS. 69 A and 69 B are diagrams illustrating a golf club mounted with a detachable weight
  • FIGS. 70 A to 70 F are diagrams illustrating other modifications of the diaphragm member
  • FIGS. 71 A to 71 C are diagrams illustrating further modifications of the diaphragm member
  • FIGS. 72 A and 72 B are diagrams illustrating modifications of the golf club of the eighth embodiment
  • FIGS. 73 A and 73 B are diagrams illustrating other modifications of the golf club 1 ;
  • FIGS. 74 A and 74 B are diagrams illustrating further modifications of the golf club 1 .
  • FIG. 1 A is a perspective view illustrating a golf club 1 (putter) according to a first embodiment.
  • the golf club 1 includes a head 3 , a hosel 4 , a shaft 5 , and a grip 6 .
  • a striking surface 2 face
  • the hosel 4 and the head 3 may be provided so as to be flush with (to form the same plane as) the striking surface 2 .
  • the hosel 4 and the head 3 may be provided so as to be flush with the striking surface 2 as shown in FIG. 1 B .
  • FIG. 2 A to FIG. 2 C are perspective views illustrating various types of the head 3 of the putter.
  • the head 3 may have a pin-type shape as shown in FIG. 2 A , a mallet-type shape as shown in FIG. 2 B , or a neomallet-type shape as shown in FIG. 2 C .
  • the shaft 5 is formed in an axial shape (elongated rod shape), and one end portion (first end portion, lower end portion in FIG. 1 ) thereof is connected to the head 3 via the hosel 4 .
  • the cross-sectional shape of the shaft 5 may be a circular shape, an elliptical shape, or a polygonal shape.
  • the grip 6 serving as a part to be gripped by the user is provided at the other end (second end portion, the upper end portion in FIG. 1 ) of the shaft 5 . Similar to the shaft 5 , the cross-sectional shape of the grip 6 may be a circular shape, an elliptical shape, or a polygonal shape.
  • the hosel 4 is formed into a plate shape that extends in a plane direction parallel to the striking surface 2 and that 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 face of the hosel 4 , or as shown in FIG. 3 B , may be connected to the plate face of the hosel 4 .
  • the thickness of the hosel 4 (dimension in the thickness direction) may be set irrespective of the thickness of the shaft 5 . If the shaft 5 is thick as compared with the thickness of the hosel 4 , the shaft 5 may be processed so as to have a small cross-sectional area at the lower end portion, as shown in FIG. 3 C .
  • the direction of the hosel 4 fixed to the head 3 is set so as to extend in a plane direction parallel to the striking surface 2 .
  • the hosel 4 may be arranged parallel to the striking surface 2 .
  • the hosel 4 in a flat plate shape may be obliquely tilted (e.g., in a posture that the upper portion is tilted toward the striking surface 2 ).
  • the shape of the lower end portion of the shaft 5 fixed to the hosel 4 may be a crank shape as shown in FIG. 4 A , a straight line shape, or a bent shape.
  • the hosel 4 may be formed in a flat plate shape having an irregular quadrilateral shape.
  • FIG. 4 D and FIG. 5 B are diagrams showing the hosel 4 formed in a flat plate shape in an irregular quadrilateral shape that looks like a side surface shape of a horseshoe.
  • the irregular quadrilateral shape of the hosel 4 shown in FIG. 5 B has a lower side 51 in contact with the upper surface of the head 3 , a first side 52 and a second side 53 , and an upper side 54 that is non-parallel to the lower side 51 .
  • the first side 52 is formed to form an angle A with the lower side 51 of equal to or larger than 40 degrees and less than 50 degrees.
  • the second side 52 is formed to form an angle B with the lower side 51 of equal to or larger than 120 degrees and less than 130 degrees.
  • expandable mechanisms 55 and 56 may be built into the shaft 5 .
  • One expandable mechanism 55 is a mechanism capable of expanding and contracting in the extending direction of the shaft 5 (vertical direction in the drawing), and is a mechanism that adjusts the position in the vertical direction of the head 3 on the basis of the grip 6 .
  • the other expandable mechanism 56 is a mechanism that can expand and contract in a direction perpendicular to the expandable mechanism 55 (the left-right direction in the drawing), and is a mechanism that adjusts the position in the left-right direction of the head 3 .
  • an expandable mechanism 57 may be built into the hosel 4 .
  • the expandable mechanism 57 is a mechanism that can expand and contract in the vertical direction in the drawing, and is a mechanism that adjusts the position in the vertical direction of the head 3 .
  • a slidable mechanism 58 may be built into a connection point between the hosel 4 and the head 3 .
  • the slidable mechanism 58 is a mechanism that adjusts the position in the horizontal direction of the head 3 with respect to the hosel 4 (or the position in the horizontal direction of the head 3 with respect to the hosel 4 ).
  • the sliding direction of the slidable mechanism 58 may be a left-right direction in the drawing or a direction perpendicular to the sheet of the drawing.
  • the positions of the hosel 4 and the head 3 can be adjusted so as to be flush with the striking surface 2 as shown in FIG. 5 D .
  • the positions of the hosel 4 and the head 3 may be adjusted so as to be flush with a surface 2 ′ (which may also be the striking surface 2 ) on the opposite side to the striking surface 2 as shown in FIG. 5 E .
  • a surface 2 ′ which may also be the striking surface 2
  • the surface on the opposite side to the striking surface 2 can also be used as a striking face.
  • stretching the hosel 4 in a planar shape having a constant thickness in parallel to the striking surface 2 makes it possible to convert the vibration of the striking surface 2 into the surface vibration (membrane vibration) of the hosel 4 .
  • the vibration is efficiently transmitted to the shaft 5 and the grip 6 , so that the user can feel accurate and subtle vibration. Therefore, it is possible to provide the user with preferable impact feeling, and to enhance the impact feeling as compared with an existing golf club.
  • FIGS. 7 A and 7 B are cross-sectional views of the golf club 1 in which hollows are formed inside the head 3 , the hosel 4 , and the shaft 5 .
  • the hosel 4 has a hosel cavity 8 (first cavity) formed in a hollow inside thereof.
  • the shaft 5 has a shaft cavity 9 (second cavity) formed in a hollow inside thereof
  • the head 3 has a head cavity 7 (fourth cavity) formed in a hollow inside thereof.
  • Each of the head cavity 7 and the shaft cavity 9 is communicated with hosel cavity 8 .
  • FIGS. 8 A and 8 B are cross-sectional views of a golf club 1 in which the inside of the hosel 4 is formed into a hollow and the insides of the head 3 and the shaft 5 are formed solid.
  • FIGS. 9 A and 9 B are cross-sectional views of the golf club 1 in which the insides of the hosel 4 and the shaft 5 are formed in hollows and the inside of the head 3 are solid.
  • the cavity can be formed in any of the head 3 , the hosel 4 , the shaft 5 , and the grip 6 .
  • the vibration of the striking surface 2 is also converted into the vibration of the air in the cavities.
  • This structure can transmit the vibration of the striking surface 2 in the form of acoustic sound as well as physical vibration to the user. Accordingly, the user can confirm the vibration of the striking surface in the form of acoustic sound, and can enhance the impact feeling.
  • an opening 11 that communicates the inner space of the hosel cavity 8 with the outside of the hosel 4 may be formed, or a head opening 12 that communicates the inner space of the head 3 with the outside may be formed.
  • the positions of the opening 11 and the head opening 12 may be on the side (front surface) on which the striking surface 2 is formed, the opposite side (back surface), or a side surface. Either one of the openings 11 and 12 may be formed, or the openings 11 and 12 may be absent (without forming the openings 11 and 12 ).
  • the hosel cavity 8 and the head cavity 7 communicated with the openings 11 and 12 , respectively, may serve as resonance chambers (resonance mechanisms) that emphasize the impact sound generated in the cavities 7 and 8 when the golf ball is hit and transmit the impact sound to the outside from the openings 11 and 12 . This structure can increase the sound entering the ears of the user, and can further enhance the impact feeling.
  • FIG. 10 is a cross-sectional view illustrating an example of an internal structure of the golf club 1 in which a vibration transmitting member 20 is incorporated.
  • a grip cavity 10 is provided inside the golf club 1 .
  • the grip cavity 10 is a hollow (third cavity) formed inside the grip 6 and is in communication with shaft cavity 9 .
  • the upper end portion of the grip 6 is closed by a grip top-end plate 21 .
  • the vibration transmitting member 20 is a member that transmits vibration generated on the striking surface 2 to the grip 6 .
  • the vibration transmitting member 20 is formed in an elongated shape and is provided inside the hosel cavity 8 , the shaft cavity 9 , and the grip cavity 10 .
  • Examples of the vibration transmitting member 20 include a wire (e.g., a wire such as a steel wire or a piano wire), a string (e.g., a string in which various fibers are braided), a rod member (e.g., a rod member formed of rod-shaped metal or wood), a linear elastic member (e.g., a linear elastic member formed of rubber or resin), and an elongated coil spring.
  • first end portion, lower end portion in FIG. 10 One end portion (first end portion, lower end portion in FIG. 10 ) of the vibration transmitting member 20 is fixed to the head 3 via fixing device 22 .
  • the other end portion (second end portion, the upper end portion in FIG. 10 ) of the vibration transmitting member 20 is attached to the inner circumference surface of the grip 6 via a grip inner plate 23 and a grip inner fixing device 24 (installing members).
  • a mass member 26 serving as a weight for amplifying vibration may be attached to the vibration transmitting member 20 .
  • the position of the mass member 26 may be fixed with respect to the vibration transmitting member 20 or may be movable (the fixed position is adjustable). Further, for example, the mass member 26 may be added according to the user's preference.
  • Vibration generated on the striking surface of the head 3 are transmitted to the grip 6 via not only the hosel 4 and the shaft 5 but also the vibration transmitting member 20 .
  • the vibration transmitting member 20 in the shaft 5 , the transmission paths of the vibration can be increased, and the vibration generated on the striking surface of the head 3 can be efficiently transmitted to the grip 6 without being attenuated. Therefore, it is possible to provide the user with preferable impact feeling, and to enhance the impact feeling as compared with an existing golf club.
  • the grip inner plate 23 and the grip inner fixing device 24 (installing members) provided at the second end portion (upper end portion of FIG. 10 ) of the vibration transmitting member 20 may be provided so as to be able to adjust their positions in the extending direction of the grip 6 by a non-illustrated electric or manual adjusting mechanism. With this structure, the tension of the vibration transmitting member 20 can be adjusted, and the vibration can be efficiently transmitted to the grip 6 .
  • the grip inner plate 23 may be formed in a membrane 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 being formed into a membrane shape, the grip inner plate 23 can be surface-vibrated (membrane-vibrated), so that the vibration transmission efficiency can be enhanced.
  • FIG. 11 is a cross-sectional view illustrating an internal structure of the golf club 1 in which a vibration transmitting member 20 and an auxiliary vibration transmitting member 30 are incorporated.
  • a vibration transmitting member 20 and an auxiliary vibration transmitting member 30 are incorporated.
  • Inside the head 3 of the golf club 1 the head cavity 7 is provided, and an auxiliary vibration transmitting member 30 is attached to the inside of the head cavity 7 .
  • the auxiliary vibration transmitting member 30 is a member that transmits vibration generated on the striking surface 2 to the vibration transmitting member 20 .
  • examples of the auxiliary vibration transmitting member 30 include a wire, a string, a rod member, a linear elastic member, and an elongated coil spring.
  • head distal tip portion 31 (the left side in FIG. 11 ) of the auxiliary vibration transmitting member 30 is attached to the inner peripheral surface of the head 3 via a fixing device 33 on a head distal-tip side.
  • head base tip portion 32 (the right side in FIG. 11 ) is attached to the inner circumference surface of the head 3 via a fixing device 34 on a head base-tip side.
  • the intermediate part of the auxiliary vibration transmitting member 30 is attached to the inner circumference surface of the head 3 via the head inner plate 35 and the head inner fixing deice 36 .
  • the auxiliary vibration transmitting member 30 and the head inner fixing deice 36 are bound together by a biding device 37 .
  • the head inner plate 35 is perforated with a through-hole into which the auxiliary vibration transmitting member 30 is loosely inserted.
  • the position of head inner plate 35 is set in the vicinity of the striking surface 2 , for example.
  • One end portion (lower end portion in FIG. 11 ) of the vibration transmitting member 20 is fixed to the auxiliary vibration transmitting member 30 via a connecting metal fitting 27 .
  • the other end portion (upper end portion in FIG. 11 ) of the vibration transmitting member 20 may be structured as shown in FIG. 10 , or may be fixed to a grip top-end plate 21 via a fixing device 28 on a grip top-end side.
  • the intermediate part of the vibration transmitting member 20 is attached to the inner peripheral surface of the grip 6 via the grip inner plate 23 and the grip inner fixing device 24 .
  • the vibration transmitting member 20 and the fixing device 24 in grip are bound together by biding device 25 .
  • the grip inner plate 23 is perforated with a through-hole into which the vibration transmitting member 20 is loosely inserted. Two pairs of the grip inner plate 23 and the grip inner fixing device 24 are provided.
  • Vibration generated on the striking surface of the head 3 are transmitted to the grip 6 via not only the hosel 4 and the shaft 5 but also the auxiliary vibration transmitting member 30 and the vibration transmitting member 20 .
  • the vibration transmitted to the vibration transmitting member 20 can be amplified, and the vibration can be efficiently transmitted to the grip 6 . Therefore, it is possible to provide the user with preferable impact feeling, and to enhance the impact feeling as compared with an existing golf club.
  • FIG. 12 is a cross-sectional view illustrating an internal structure of the golf club 1 in which three pairs of the vibration transmitting member 20 and the auxiliary vibration transmitting member 30 are provided.
  • the vibration generated on the striking surface 2 of the head 3 can be efficiently transmitted to the grip 6 . Therefore, it is possible to provide the user with preferable impact feeling, and to enhance the impact feeling as compared with an existing golf club.
  • FIG. 13 is a cross-sectional view showing an example of a structure that makes it possible to adjust the position of the second end portion (upper end portion in FIG. 13 ) of the vibration transmitting member 20 in the extending direction of the grip 6 .
  • the vibration transmitting member 20 is formed of any one of a wire, a string, a linear elastic member, and an elongated coil spring.
  • the second end portion of the vibration transmitting member 20 is provided with a motor 43 and a winding device 44 .
  • a pinion 42 is rotatably installed.
  • a rack 41 that meshes with the pinion 42 is fixed.
  • the pinion 42 is urged upward against the rack 41 by a non-illustrated urging member (for example, a spring or a rubber).
  • the pinion 42 is moved downward along the rack 41 by rotating the motor 43 and winding the second end portion of the vibration transmitting member 20 by the winding device 44 .
  • the pinion 42 is moved upward along the rack 41 .
  • a manually operated winding device 44 may be used.
  • the winding device 44 may be configured to be rotated from the outside by using, for example, a jig such as a Phillips screwdriver or a flat-blade screwdriver.
  • the second end of the vibration transmitting member 20 is wound by rotating the winding device 44 by hand, so that the pinion 42 is moved downward along the rack 41 .
  • the pinion 42 is moved upward along the rack 41 by rewinding the winding device 44 in the reverse direction.
  • FIGS. 14 A and 14 B are perspective views for illustrating modifications of the head 3 .
  • the head 3 may include a weight member 61 for changing the position of the center of gravity of the head 3 .
  • the head 3 may be configured to change the position of the center of gravity by making the attachment state (position or angle) of the weight member 61 .
  • the attachment state of the weight member 61 may be manually adjustable by a user or may be accomplished with a weight motor 62 (drive source) provided for moving the weight member 61 .
  • FIG. 14 A is a perspective view showing the head 3 that incorporates two sets of the motor 61 for weight and the weight motor 62 on the upper surface thereof.
  • the weight members 61 are made of material different from the material constituting the head 3 , and are provided inside the hollow-cylindrical recesses recessed on the upper surface of the head 3 .
  • the weight motors 62 change the positions of respective weight members 61 by moving the weight members 61 in the rotating directions along the inner circumferential surfaces of the recesses. With this configuration, the positions of weight members 61 can be easily changed and thereby the center of gravity of the head 3 , so that preferable impact feeling can be provided.
  • FIG. 14 B is a perspective view showing the head 3 in which weight members 61 are provided inside linear recesses recessed on the upper surfaces.
  • the weight motors 62 change the positions of respective weight members 61 by sliding the weight members 61 along the inner circumferential surfaces of the recesses. Also with this configuration, the positions of weight members 61 can be easily changed and thereby the center of gravity of the head 3 , so that preferable impact feeling can be provided.
  • the golf club 1 of this embodiment includes the head 3 , the shaft 5 , the hosel 4 , and the grip 6 .
  • the head 3 has the striking surface 2 that strikes a golf ball.
  • the shaft 5 is formed in an axial shape.
  • the hosel 4 integrally connects the head 3 with a first end portion of the shaft 5 in a non-replaceable manner.
  • the grip 6 is provided at the second end portion of the shaft 5 and is gripped by the user. In this way, by forming the head 3 and the shaft 5 integrally with the hosel 4 in a non-replaceable manner, vibration passing through the hosel 4 can be inhibited from being attenuated and vibration can be efficiently transmitted to the grip 6 . Consequently, the impact feeling can be further enhanced.
  • the hosel 4 is formed into a plate shape that extends in a plane direction parallel to the striking surface 2 and that has a constant thickness. In this manner, stretching the hosel 4 in a planar shape having a constant thickness in parallel to the striking surface 2 makes it possible to convert the vibration of the striking surface 2 into the surface vibration (membrane vibration) of the hosel 4 . With this structure, the vibration is efficiently transmitted to the shaft 5 and the grip 6 , so that the user can feel accurate and subtle vibration. Therefore, it is possible to provide the user with preferable impact feeling, and to enhance the impact feeling as compared with an existing golf club.
  • the hosel 4 of the present embodiment may be formed in a rectangular flat plate shape as shown in FIGS. 2 A to 2 C, 3 A to 3 F, and 4 A to 4 B , for example. Forming the hosel 4 in a rectangular flat plate shape as the above makes it possible to enhance the transmission efficiency of vibration with a simple configuration. Consequently, the impact feeling can be further enhanced.
  • the hosel 4 of the present disclosure can be formed in a bent plate shape that is be curved such that a closer surface to the striking surface 2 on a lateral cross-sectional surface perpendicular to the striking surface 2 comes inside.
  • This shape can bring the connecting position between the shaft 5 and the hosel 4 close to the striking surface in the top view while enhancing the efficiency in transmitting vibration. Therefore, preferable impact feeling can be provided.
  • the position of the golf ball when the golf ball comes into contact with the striking surface 2 can also be arranged on the extension of the shaft 5 .
  • the hosel 4 of the present disclosure can also be formed in a flat plate shape in an irregular quadrilateral shape that looks like a side surface shape of a horseshoe.
  • the irregular quadrilateral has the lower side 51 in contact with the upper surface of the head 3 , a lower side 52 forming an angle with the lower side 51 of equal to or larger than 40 degrees and less than 50 degrees, the second side 53 forming an angle with the lower side 51 of equal to or larger than 120 degrees and less than 130 degrees, and the upper side 54 connecting the lower side 52 and the second side 53 and being non-parallel to the lower side 51 .
  • Adopting a flat planer shape in an irregular quadrilateral shape that looks like a side surface shape of a horseshoe to the shape of the hosel 4 as the above makes it possible to provide a preferable impact feeling, ensuring the strength and the stiffness of the hosel 4 .
  • the hosel 4 of the present application may have a hosel cavity 8 (first cavity) formed in a hollow.
  • acoustic sound can be generated in the hosel cavity 8 .
  • the user can confirm the vibration of the striking surface 2 as acoustic sound, and the impact feeling can be further enhanced.
  • the opening 11 for transmitting the reverberation sound of the hosel cavity 8 to the outside of the hosel 4 the acoustic sound that the user hears can be increased, the impact feeling can be further enhanced, and the impact sound can be sufficiently confirmed.
  • the shaft 5 of the present application may have a shaft cavity 9 (second cavity) formed in a hollow communicating with the hosel cavity 8 (first cavity) as shown in FIGS. 7 and 9 .
  • a shaft cavity 9 second cavity
  • the vibration can be reverberated also in the shaft cavity 9 and the acoustic sound that the user hears can be increased. Therefore, the impact feeling and the impact sound can be further enhanced.
  • the grip 6 of the present embodiment may have a grip cavity 10 (third cavity) formed into a hollow communicating with the shaft cavity 9 (second cavity) therein.
  • a grip cavity 10 third cavity
  • the vibration can be reverberated also in the grip cavity 10 so that the acoustic sound that the user hears can be increased. Therefore, the impact feeling and the impact sound can be further enhanced.
  • the grip 6 of the present embodiment may be integrally formed with the shaft 5 as shown in FIG. 10 to FIG. 13 , for example. Providing that the shaft 5 and the grip 6 are separate members, vibration may be attenuated when passing through the joint portion between the two members, which may reduce vibration to be transmitted to the grip 6 . This problem can be solved by integrally forming the shaft 5 and the grip 6 , which makes it possible to efficiently transmit the vibration to the grip 6 . Consequently, the impact feeling can be further enhanced.
  • the golf club 1 of the present embodiment may be applied with the vibration transmitting member 20 that transmits vibration generated on the striking surface 2 to the grip 6 .
  • the vibration transmitting member 20 is formed in an elongated shape, and is fixed to the head 3 at the first end portion thereof, and is incorporated in the shaft cavity 9 (second cavity) and the grip cavity 10 (third cavity).
  • a grip inner plate 23 and a grip inner fixing device 24 (attachment member) that connect the second end of the vibration transmitting member 20 and the grip 6 may be applied to the inside of the grip hollow 10 (third cavity).
  • the installing member (the pinion 42 , the motor 43 , the winding device 44 in FIG. 13 , or the winding device 44 manually operated) that connects the other end of the vibration transmitting member 20 and the grip 6 may be provided such that the positions thereof is adjustable in the extending direction of the grip 6 .
  • This structure makes it possible to adjust the position to which the vibration of the vibration transmitting member 20 is transmitted, so that the vibration can be efficiently transmitted to the grip 6 . Consequently, the impact feeling can be further enhanced.
  • the grip inner plate 23 and the grip inner fixing device 24 (installing members) shown in FIG. 10 may be provided so as to be able to adjust their positions in the extending direction of the grip 6 by a non-illustrated adjusting mechanism. With this structure, the tension of the vibration transmitting member 20 can be adjusted, and the vibration can be efficiently transmitted to the grip 6 .
  • the vibration transmitting member 20 of the present application may be formed of any one of a wire, a string, a rod member, and a linear elastic member. As a result, the vibration transmitting member 20 can be realized with a simple configuration, and the vibration transmission efficiency can be easily improved. Consequently, the impact feeling can be further enhanced.
  • the grip inner plate 23 (installing member) of the present application can be formed in a membrane shape that is expanded in a direction intersecting the extending direction of the grip 6 .
  • the grip inner plate 23 (installing member) can be surface-vibrated (membrane-vibrated), so that the vibration transmission efficiency can be enhanced. Consequently, the impact feeling can be further enhanced.
  • a mass member 26 serving as a weight for amplifying vibration may be attached to the vibration transmitting member 20 of the present embodiment.
  • the vibration of the vibration transmitting member 20 can be easily amplified, or the attenuation of the vibration can be suppressed, so that the vibration transmission efficiency can be enhanced. Consequently, the impact feeling can be further enhanced.
  • the head 3 of the present embodiment may have a head cavity 7 (fourth cavity) formed into a hollow communicating with the hosel cavity 8 (first cavity) therein.
  • the head cavity 7 can also reverberate vibration and the acoustic sound that the user hears can be increased. Consequently, the impact feeling can be further enhanced.
  • the golf club 1 of the present embodiment is applied with an auxiliary vibration transmitting member 30 that transmits vibration generated on the striking surface 2 to the vibration transmitting member 20 .
  • the auxiliary vibration transmitting member 30 is provided inside the head cavity 7 (fourth cavity). As described above, by incorporating the auxiliary vibration transmitting member 30 in the head 3 , it is possible to efficiently transmit the vibration generated on the striking surface 2 of the head 3 to the vibration transmitting member 20 without attenuating the vibration, and the impact feeling can be further enhanced.
  • the head 3 is applied with the weight members 61 for changing the position of the center of gravity of the head 3 .
  • the center of gravity of the head 3 can be easily moved, so that preferable impact feeling can be provided.
  • the weight motors 62 may be provided as driving sources for moving the weight members 61 .
  • the weight members 61 are provided inside the hollow-cylindrical recesses recessed on the upper surface of the head 3 .
  • the weight motors 62 rotate the respective weight members 61 along the inner circumferential surfaces of the recesses.
  • the above first embodiment is merely example, and there is no intention to eliminate the application of various modifications and techniques not explicitly described therein.
  • the configurations of the first embodiment can be variously modified without departing from the scope thereof. Also, the configuration can be selected or omitted according to the requirement or appropriately combined.
  • a vibration sensor 81 that detects vibration generated on the striking surface 2 may be incorporated in the hosel 4 .
  • the vibration sensor 81 may be attached to the outer surface of the hosel 4 or incorporated in the hosel 4 . If the hosel cavity 8 is formed inside the hosel 4 , the vibration sensor 81 may be arranged inside the cavity. Detection of the vibration by the vibration sensor 81 makes it possible to objectively capture the magnitude and the waveform of the vibration in the vicinity of the vibration generation source (the striking surface 2 ), so that the impact feeling can be further enhanced. In addition, since the magnitude and waveform of the vibration can be analyzed, it is possible to enhance the practicing effect of golf by utilizing the analysis result.
  • the data detected by the vibration sensor 81 may be transmitted to a non-illustrated computer by, for example, wireless connection or a wired connection.
  • the grip 6 may include a vibrating device 82 that vibrates based on the data of the vibration detected by the vibration sensor 81 .
  • a vibrating device 82 may be arranged inside the cavity.
  • the vibrating device 82 may function, for example, to amplify and output the unprocessed vibration detected by the vibration sensor 81 . By amplifying the vibration by the vibrating device 82 , the vibration actually transmitted to the user can be increased, so that the impact feeling can be further enhanced.
  • the grip 6 may include a speaker 82 A that emits sound based on the data of the vibration detected by the vibration sensor 81 .
  • a speaker 82 A including an amplifier may be arranged inside the cavity.
  • the speaker 82 A may function, for example, to amplify and output the vibration detected by the vibration sensor 81 in the form of unprocessed sound.
  • the vibration sensor 81 when a golf ball is struck on one striking surface of the golf club, the vibration at that time is detected by the vibration sensor 81 and heard, as sound, from the speaker 82 A.
  • the hollow shaft 5 functions as a speaker box, and therefore makes the sound related to the vibration louder and outputs the loud sound.
  • the golf club 1 can function as a kind of electronic musical instrument.
  • both the vibrating device 82 and the speaker 82 A may be attached to the grip 6 .
  • fins 13 each in a thin-plate shape may be erected on the upper surface of the head 3 .
  • Each fin 13 is a portion in a thin-plate form or a hollow-plate form that functions to amplify the vibration generated in the head 3 and the hosel 4 .
  • the number of fins 13 may be appropriately set according to the size of the head 3 or the hosel 4 , and may be one or two or more.
  • each fin 13 may be disposed on the side close to the striking surface 2 or may be disposed on the side distant from the striking surface 2 on the basis of the position of the hosel 4 to which the shaft 5 is connected.
  • each fin 13 may be set to the same height as (or substantially the same as) the hosel 4 .
  • the height of each fin 13 may be set different from that of the hosel 4 , for example, may be set to about the half of the height of the hosel 4 .
  • the magnitude relationship in the sizes (thickness, height, and depth) between the hosel 4 and each fin 13 can be appropriately set.
  • the fin disposed closed to the hosel 4 may be formed integrally with or separately from the hosel 4 .
  • an illuminating member 13 B including, for example, an LED or a fluorescent material may be arranged on a top surface 13 A of each fin 13 .
  • illuminating member 4 B equivalent to the illuminating member 13 B may be arranged on the top surface 4 A of the hosel 4 .
  • the number of each of the illuminating members 4 B and 13 B may be, for example, one or more, and the illuminating members 4 B and 13 B may be arranged in a planar shape, in a row shape, or in a chain shape. This structure makes it possible to sufficiently confirm the trajectory of the head 3 even during practice in darkness.
  • the illuminating member 4 B may be omitted.
  • the fins 13 formed into curved shapes (crescent shapes) in the top view as shown in FIGS. 17 A, 17 B, and 17 C , or into corrugated shapes in the top view as shown in FIGS. 17 D, 17 E, and 17 F can be used.
  • the shape of the fin 13 may be a combination of a curved shape and a corrugated shape, or may be another shapes in the top view. If the fins 13 having such a shape is used, the hosel 4 can also be formed into a curved shape and a corrugated shape.
  • a fluctuation effect is generated, so that balanced feeling can be given to the user.
  • the longitudinal direction of the head 3 may be formed so as to coincide with the swing direction (see solid-line arrow or dashed-line arrow) of the head 3 in the top view or U-shaped fins 13 may be formed on the upper surface of the head 3 .
  • the number of fins 13 may be one or tow or more.
  • the orientation of each fin 13 is preferably set such that the U-shape opens toward the striking surface 2 in the top view.
  • the positions of the hosel 4 and the head 3 may be made to flush with the striking surface 2 .
  • FIG. 18 A and FIG. 18 B are cross-sectional views illustrating the internal structure of the golf club 1 illustrated in FIG. 16 A .
  • the vibration can be easily amplified.
  • multiple fins 13 (each may be in a straight-line shape, a curved-line shape, or a corrugated shape in the top view) are provided, vibration may resonate between the fins 13 and be further amplified. Therefore, preferable impact feeling can be provided and the same effects and actions as those of the above embodiment can be provided.
  • the second embodiment relates to a golf club 1 which does not have hosel 4 unlike the first embodiment.
  • the shaft 5 and the grip 6 are formed into hollows, and the vibration transmitting member 20 is provided in the hollow portions.
  • FIG. 19 is a cross-sectional view illustrating an internal structure of the golf club 1 in which a vibration transmitting member 20 is incorporated.
  • a grip cavity portion 10 inside the golf club 1 , in addition to the shaft cavity portion 9 (second cavity), a grip cavity portion 10 (third cavity) is provided.
  • the grip cavity 10 is a hollow formed inside the grip 6 and communicates with shaft cavity 9 The upper end portion of the grip 6 is closed by a grip top-end plate 21 .
  • the vibration transmitting member 20 is a member that transmits vibration generated on the striking surface 2 to the grip 6 .
  • the vibration transmitting member 20 is formed in an elongated shape and is provided inside the shaft cavity 9 and the grip cavity 10 .
  • Examples of the vibration transmitting member 20 include a wire (e.g., a wire such as a steel wire or a piano wire), a string (e.g., a string in which various fibers are braided), a rod member (e.g., a rod member formed of rod-shaped metal or wood), a linear elastic member (e.g., a linear elastic member formed of rubber or resin), and an elongated coil spring.
  • One end portion (lower end portion in FIG. 19 ) of the vibration transmitting member 20 is fixed to the head 3 via fixing device 22 .
  • the other end portion (the upper end portion in FIG. 19 ) of the vibration transmitting member 20 is attached to the inner peripheral surface of the grip 6 via a grip inner plate 23 and a grip inner fixing device 24 (installing members).
  • a mass member 26 serving as a weight for amplifying vibration may be attached to the vibration transmitting member 20 .
  • the position of the mass member 26 may be fixed with respect to the vibration transmitting member 20 or may be movable (the fixed position is adjustable). Further, for example, the mass member 26 may be added, modified, 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 transmitting member 20 .
  • the vibration transmitting member 20 in the shaft 5 , the transmission paths of the vibration can be increased, and the vibration generated on the striking surface of the head 3 can be efficiently transmitted to the grip 6 without being attenuated. Therefore, it is possible to provide the user with preferable impact feeling, and to improve the impact feeling as compared with an existing golf club.
  • the grip inner plate 23 and the grip inner fixing device 24 (installing members) provided at the other end portion (upper end portion of FIG. 10 ) of the vibration transmitting member 20 may be provided so as to be able to adjust their positions in the extending direction of the grip 6 by a non-illustrated electric- or manual-type adjusting mechanism. With this structure, the tension of the vibration transmitting member 20 can be adjusted, and the vibration can be efficiently transmitted to the grip 6 .
  • the grip inner plate 23 may be formed in a membrane 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 being formed into a membrane shape, the grip inner plate 23 can be surface-vibrated (membrane-vibrated), so that the vibration transmission efficiency can be enhanced.
  • FIG. 20 is a cross-sectional view illustrating an internal structure of the golf club 1 in which a vibration transmitting member 20 and an auxiliary vibration transmitting member 30 are incorporated.
  • the head cavity 7 (fourth cavity) is provided, and an auxiliary vibration transmitting member 30 is attached to the inside of the head cavity 7 .
  • the auxiliary vibration transmitting member 30 is a member that transmits vibration generated on the striking surface 2 to the vibration transmitting member 20 .
  • examples of the auxiliary vibration transmitting member 30 include a wire, a string, a rod member, a linear elastic member, and an elongated coil spring.
  • head distal tip portion 31 (the left side in FIG. 20 ) of the auxiliary vibration transmitting member 30 is attached to the inner peripheral surface of the head 3 via a fixing device 33 on a head distal-tip side.
  • head base tip portion 32 (the right side in FIG. 20 ) is attached to the inner circumference surface of the head 3 via a fixing device 34 on a head base-tip side.
  • the intermediate part of the auxiliary vibration transmitting member 30 is attached to the inner circumference surface of the head 3 via the head inner plate 35 and the head inner fixing deice 36 .
  • the auxiliary vibration transmitting member 30 and the head inner fixing deice 36 are bound together by a biding device 37 .
  • the head inner plate 35 is perforated with a through-hole into which the auxiliary vibration transmitting member 30 is loosely inserted.
  • the position of head inner plate 35 is set in the vicinity of the striking surface 2 , for example.
  • One end portion (lower end portion in FIG. 20 ) of the vibration transmitting member 20 is fixed to the auxiliary vibration transmitting member 30 via a connecting metal fitting 27 .
  • the other end portion (upper end portion in FIG. 11 ) of the vibration transmitting member 20 may be structured as shown in FIG. 19 or as shown in FIG. 20 , or may be fixed to a grip top-end plate 21 via a fixing device 28 on a grip top-end side.
  • the intermediate part of the vibration transmitting member 20 is attached to the inner peripheral surface of the grip 6 via the grip inner plate 23 and the grip inner fixing device 24 .
  • the vibration transmitting member 20 and the fixing device 24 in grip are bound together by biding device 25 .
  • the grip inner plate 23 is perforated with a through-hole into which the vibration transmitting member 20 is loosely inserted. Two pairs of the grip inner plate 23 and the grip inner fixing device 24 are provided.
  • Vibration generated on the striking surface of the head 3 are transmitted to the grip 6 via not only the shaft 5 but also the auxiliary vibration transmitting member 30 and the vibration transmitting member 20 .
  • the vibration transmitted to the vibration transmitting member 20 can be amplified, and the vibration can be efficiently transmitted to the grip 6 . Therefore, it is possible to provide the user with preferable impact feeling, and to enhance the impact feeling as compared with an existing golf club.
  • FIG. 21 is a cross-sectional view illustrating an internal structure of the golf club 1 in which three pairs of the vibration transmitting member 20 and the auxiliary vibration transmitting member 30 are provided.
  • the vibration generated on the striking surface 2 of the head 3 can be efficiently transmitted to the grip 6 . Therefore, it is possible to provide the user with preferable impact feeling, and to enhance the impact feeling as compared with an existing golf club.
  • FIG. 22 is a cross-sectional view showing an example of a structure that makes it possible to adjust the position of the second end portion (upper end portion in FIG. 22 ) of the vibration transmitting member 20 in the extending direction of the grip 6 .
  • the vibration transmitting member 20 is formed of any one of a wire, a string, and a linear elastic member.
  • the second end portion of the vibration transmitting member 20 is provided with a motor 43 and a winding device 44 .
  • a pinion 42 is rotatably installed.
  • a rack 41 that meshes with the pinion 42 is fixed.
  • the pinion 42 is urged upward against the rack 41 by a non-illustrated urging member (for example, a spring or a rubber).
  • the pinion 42 moves downward along the rack 41 by rotating the motor 43 and winding the second end portion of the vibration transmitting member 20 by the winding device 44 In contrast, when rewinding the motor 43 , the pinion 42 moves upward along the rack 41 .
  • a manually operated winding device 44 may be used.
  • the winding device 44 may be configured to be rotated from the outside by using, for example, a jig such as a Phillips screwdriver or a flat-blade screwdriver.
  • the second end of the vibration transmitting member 20 is wound by rotating the winding device 44 by hand, so that the pinion 42 is moved downward along the rack 41 .
  • the pinion 42 is moved upward along the rack 41 by rewinding the winding device 44 in the reverse direction.
  • the shaft 5 may have an opening that makes the inner space of the shaft cavity 9 (second cavity) communicate with the outside and that transmits the reverberation sound inside the shaft 5 to the outside, and the shaft cavity 9 may serve as a resonance chamber (resonance mechanism) that emphasizes the impact sound generated in the shaft cavity 9 when the golf ball is hit and transmits the impact sound to the outside through the opening.
  • This structure can increase the sound entering the ears of the user, and can further improve the impact feeling.
  • the third embodiment relates to a golf club 1 characterized by an insert provided on the striking surface 2 of the head 3 .
  • the golf club 1 includes the head 3 , the shaft 5 , and the grip 6 .
  • a striking surface 2 (face) that hits a golf ball is provided.
  • the striking surface 2 is provided with an insert made of a surface vibration member 15 formed in a surface shape that, when colliding with the golf ball, surface-vibrates and provides reaction force to the golf ball.
  • This structure can efficiently apply reaction force to the ball by small force and to extend the driving distance. The impact feeling can be improved by the surface vibration.
  • the surface vibration member 15 includes a net member 16 formed by knitting a string 19 into a net-like shape inside a frame 18 and a membrane member 17 which covers the entire surface of the net member 16 and is pasted onto the striking surface 2 .
  • the net member 16 has a structure similar to a tennis racket structure, for example. This structure can efficiently apply reaction force to the ball.
  • the net member 16 and the membrane member 17 are preferably detachably installed to the striking surface 2 of the head 3 independently from each other.
  • the string 19 constituting the net member 16 includes at least one of natural fibers (gut (bovine and ovine intestine)), synthetic fibers (nylon fiber, polyester fiber), and elastic fibers (natural rubber fibers, synthetic rubber fibers), and the membrane member 17 includes at least one of a metal plate, a resin plate, a rubber membrane, and a leather membrane. Accordingly, by using existing string (e.g., tennis strings, rubber belts), the net member can be achieved at low cost, and by using existing membrane products (e.g., drum membrane, rubber membrane of a table tennis racket), the membrane member can be realized at low cost.
  • existing string e.g., tennis strings, rubber belts
  • existing membrane products e.g., drum membrane, rubber membrane of a table tennis racket
  • 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 formed by stretching the membrane of a drum may over a frame material.
  • the insert may be made of metal. In this case, the insert may be formed in a lattice shape like the lid of a grating.
  • the structure of the insert may be formed into one similar to a gong structure. Specifically, if the striking surface 2 of the insert is hang and the ball hits the striking surface 2 in the gong structure, a sound like a gong is generated.
  • a vibration sensor that detects vibration of a drum membrane or vibration of an insert in the gong structure is provided, for example, inside of the head of the golf club or integrally with or close to the insert and the vibration of the drum membrane or the insert in the gong structure may be amplified and output in the form of sound from a speaker.
  • the surface vibration member 15 is detachably provided to the head 3 . This allows the surface vibration member 15 to be attached or detached according to the preference of the user. In addition, the surface vibration member 15 may be attached to an existing golf club. Like the head cavity 7 of the first embodiment, a head cavity 7 formed by forming a hollow inside of the head 3 may be provided. For example, as shown in FIGS. 23 and 25 , the head cavity 7 may be formed inside the head 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 installed so as to cover the opening of the head body 14 . This reverberates the surface vibration of the surface vibration member 15 in the head cavity 7 and can enhance the impact feeling.
  • a head inner wire (auxiliary vibration transmitting member) 30 may be installed inside the head cavity 7 .
  • the head inner wire 30 is stretched inside the head cavity 7 and connected to the surface vibration member 15 via a connecting wire 40 . This can amplify the surface vibration of the surface vibration member 15 as the vibration of the head inner wire 30 , and can enhance the impact feeling.
  • the shaft cavity 9 formed by forming a hollow inside the shaft 5 may be provided.
  • the surface vibration can be reverberated also inside of the shaft cavity 9 , and the impact feeling can be enhanced.
  • a shaft inner wire 20 may be provided inside the shaft cavity 9 .
  • the shaft inner wire 20 is stretched inside the shaft cavity 9 and is connected to the head inner wire 30 . This structure can amplify the surface vibration of the surface vibration member 15 as the vibration of the shaft inner wire 20 , and can enhance the impact feeling.
  • the shaft inner wire 20 may be stretched so as to connect the grip 6 and the head inner wire 30 .
  • the upper end of the shaft inner wire 20 may be fixed inside the grip 6 to transmit the vibration of the surface vibration member 15 to the grip 6 .
  • a chime, a gong, or a buzzer sounds as electronic sound, or the fact is notified via voice.
  • the tone of the chime, the gong, or the buzzer may differ between a case where the golf ball hits the sweet spot and a case where the golf ball does not hit the sweet spot, or the voice may differ between the above cases.
  • a sensor that detects that a golf ball hit the sweet spot or a sensor that detects that the golf ball missed the sweet spot is provided, and a speaker outputs sound of the chime, the gong, or the buzzer or voice via an amplifier on the basis of the data detected by this sensor (or these sensors).
  • the golf club having the insert head according to the third embodiment can also be applied to a golf club having a hosel according to the first embodiment.
  • the insert like those shown in FIG. 23 and FIG. 24 may be installed to the head of the striking face of the golf club with a hosel.
  • a part on the inner surface of the insert and the auxiliary vibration transmitting member (head inner wire 30 ) can be directly connected to each other, so that the vibration in the insert is directly transmitted to the head inner wire 30 , which contributes to the further enhancement in the transmission efficiency and in impact feeling.
  • the fourth embodiment relates to a golf club 1 having a fin or plate member 86 .
  • the golf club 1 shown in FIG. 27 includes the head 3 having a striking surface 2 that hits a golf ball, the shaft 5 formed in a shaft shape, the hosel 4 connecting one end portion of the shaft 5 to the head 3 , and the grip 6 being provided at the other end portion of the shaft 5 and being gripped by a user.
  • the fin or plate member 86 is provided between the head 3 and the hosel 4 .
  • the fin or plate member 86 is a plate-like member and is fixed so as to connect the head 3 to 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 in a triangular flat plate shape and is stretched between upper surface of the head 3 and the edge surface of the hosel 4 . Although only one fin or plate member 86 appears in FIG. 27 , the number of fin or plate members 86 is irrelevant, and multiple fin or plate members 86 may be provided.
  • the golf club 1 shown in FIGS. 28 A and 28 B is a golf club 1 not having a hosel 4 . That is, the golf club 1 shown in FIG. 27 includes the head 3 having a striking surface 2 that hits a golf ball, the shaft 5 formed in a shaft shape, and the grip 6 being provided at the other end portion of the shaft 5 and being gripped by a user.
  • the head 3 is connected to one end portion of the shaft 5 .
  • one (or more) fin or plate member 86 is provided between the head 3 and the shaft 5 .
  • the fin or plate member 86 surface-vibrates when the the golf ball is hit, so that the impact feeling can be enhanced.
  • the strength of installing of the shaft 5 or the hosel 4 to the head 3 can be reinforced.
  • the fifth embodiment relates to a golf club 1 including the vibration transmitting member 20 and the auxiliary vibration transmitting member 30 and further incorporating therein pickups 20 A, 30 A (first pickup 20 A, second pickup 30 A) that detect vibration.
  • the first pickup 20 A is a sensor that detects vibration of the vibration transmitting member 20 and converts the detected vibration into an electric signal, and is provided at a position close to the vibration transmitting member 20 .
  • the second pickup 30 A is a sensor that detects vibration of the auxiliary vibration transmitting member 30 and converts the detected vibration into an electric signal, and is provided at a position close to the auxiliary vibration transmitting member 30 .
  • These pickups 20 A, 30 A generate electric signals corresponding to the vibration of the vibration transmitting members 20 , 30 in the manner accomplished by an electric guitar, for example.
  • the golf club 1 shown in FIG. 30 includes the hosel cavity 8 , the shaft cavity 9 , the grip cavity 10 , the vibration transmitting member 20 , the auxiliary vibration transmitting member 30 , the first pickup 20 A, and the second pickup 30 A.
  • the auxiliary vibration transmitting member 30 is a member that transmits vibration generated on the striking surface 2 to the vibration transmitting member 20 and is arranged inside the head cavity 7 .
  • examples of the auxiliary vibration transmitting member 30 include a wire (e.g., a linear member containing magnetic material such as a steel wire or a piano wire).
  • the installing manner of the vibration transmitting members 20 , 30 is as described in the above embodiment.
  • an electric signal detected by the first pickup 20 A is amplified by an amplifier 90 A built in the golf club 1 and also transmitted to a speaker 91 A.
  • an electric signal detected by the second pickup 30 A is, for example, amplified by the same amplifier 90 A built in the golf club 1 and transmitted to the same speaker 91 A.
  • the electric signal detected by the second pickup 30 A may be amplified by a different amplifier 90 B from the amplifier 90 A, or the amplified electric signal may be transmitted to a different speaker 91 B from the speaker 91 A.
  • the speakers 91 A, 91 B output the inputted electric signals as sound. As a result, impact sound is outputted from the speakers 91 A, 91 B.
  • This impact sound can be adjusted by changing the amplifying properties of the amplifiers 90 A, 90 B.
  • filters may be interposed on the upstream side and/or the downstream side of the amplifiers 90 A, 90 B to remove noise or unnecessary frequency components from the electric signals as needed.
  • vibration generated on the striking surface 2 of the head 3 are transmitted to the grip 6 via not only the hosel 4 and the shaft 5 but also the vibration transmitting member 20 .
  • the vibration generated on the striking surface 2 can be efficiently transmitted to the grip 6 without being attenuated. Therefore, it is possible to provide the user with preferable impact feeling, and to enhance the impact feeling as compared with an existing golf club.
  • the vibration of the vibration transmitting member 20 is detected by the first pickup 20 A, and the vibration is converted into an electric signal, amplified by the amplifier 90 A, and then outputted as a sound from the speaker 91 A. As a result, the impact sound is output together with the above-described impact feeling, and preferable impact feeling due to the synergistic effect can be provided to the user.
  • the vibration transmitting member 20 is incorporated in the hosel cavity 8 and the shaft cavity 9 , and the auxiliary vibration transmitting member 30 is additionally incorporated in the head cavity 7 (fourth cavity).
  • the vibration of the auxiliary vibration transmitting member 30 is detected by the second pickup 30 A, and the sound corresponding to the detected vibration is outputted from the speakers 91 A, 91 B.
  • the impact sound is output together with the above-described impact feeling, and preferable impact feeling due to the synergistic effect can be provided to the user.
  • the pickups 20 A, 30 A detect vibration transmitting through the vibration transmitting member 20 and the auxiliary vibration transmitting member 30 respectively, the electric signals originated from the respective vibrations are amplified by the amplifiers 90 A, 90 B, appropriately filtered, and output as impact sound from the speakers 91 A, 91 B. This can provide more preferable impact feeling the user.
  • the speakers 91 A, 91 B can be in shared, and amplifier 90 A, 90 B can also be shared as needed.
  • the pickups 20 A, 30 A may be provided one for each of the vibration transmitting members 20 and the auxiliary vibration transmitting member 30 , or may be shared by the vibration transmitting members 20 and the auxiliary vibration transmitting member 30 .
  • an electric signal detected by the third pickup 40 A is amplified by an amplifier 90 C built in the golf club 1 and also transmitted to a speaker 91 C.
  • the speakers 91 A- 91 C can be in shared, and the amplifiers 90 A- 90 C can also be shared as needed.
  • the pickups 40 A may be provided one for each of the connecting wires 40 or a single connecting wire 40 may be shared by the connecting wires 40 .
  • the same actions and effects as those of the above-described the golf club 1 having the hosel 4 can be obtained.
  • speakers 91 A- 91 C can be shared, and amplifiers 90 A- 90 C can also be shared as needed.
  • the pickups 20 A, 30 A, 40 A may be provided one for each of the vibration transmitting members 20 , the auxiliary vibration transmitting member 30 , and the connecting wires 40 or may be shared by the vibration transmitting members 20 , the auxiliary vibration transmitting member 30 , and the connecting wires 40 .
  • the amplifiers 90 A- 90 C and the speakers 91 A- 91 C may be replaced with a smart phone or a computer (e.g., information terminal).
  • the speakers 91 A- 91 C may be worn to the user's ears in the form of earphones or headphones.
  • the connection between the pickups 20 A, 30 A, 40 A and the respective corresponding amplifiers 90 A- 90 C may be wired or wireless.
  • the connection between the amplifiers 90 A- 90 C and the respective corresponding speakers 91 A- 91 C may be wired or wireless.
  • a Liquid Crystal Display (LCD) 100 serving as an electric indicator member that can indicate the hitting direction of the golf ball is provided.
  • the LCD 100 may be configured, for example, as a color LCD that can display color images.
  • the LCD 100 can also be applied to the golf club 1 having the hosel 4 as shown in FIG. 37 A , or can also be applied to the golf club 1 not having the hosel 4 as shown in FIG. 37 B .
  • the LCD 100 is connected to an indicator 102 (inputting device) via a controller 101 .
  • the indicator 102 provides an instruction for display
  • the LCD 100 is informed via the controller 101 of this instruction, and then LCD 100 displays the hitting direction of the golf ball.
  • the other components are substantially the same as those of the foregoing embodiments, so detailed description thereof will be omitted.
  • the display by the LCD 100 may be an arrow or a series of circles indicating the hitting direction of the golf ball.
  • the circles may be arranged so as to become smaller as approaching the distal end side indicating the direction. This configuration can enhance the impact feeling and also can display the hitting direction of the golf ball freely with the LCD 100 , so that the convenience can be enhanced.
  • the indicator 102 and the controller 101 may be replaced by a smart phone.
  • the connection between the controller 101 and the LCD 100 is preferably wireless.
  • the content of an instruction input into the indicator 102 may be input by, for example, a user of the golf club 1 , an instructor (trainer), or an assistant (caddy).
  • a rhythm box function for notifying the rhythm of hitting the golf ball in the event of hitting the golf ball may be provided.
  • the golf club 1 is provided with a controller 101 having either one of a rhythm box function for notifying the rhythm when the golf ball is to be hit and a synthesized voice generating function and a speaker 100 A outputting one of the rhythm sound and the synthesized voice generated by the rhythm box function and the synthesized voice generating function of the controller 101 , respectively (see FIG. 38 ).
  • one or more impact sensors 103 may be provided in the head 3 , and when the golf ball hits the striking surface 2 , the impact data thereof may be detected by the impact sensors 103 and collected by the controller 101 , and the impact data may be displayed on the LCD 100 in a numerical value and/or a graph (see FIG. 38 ).
  • the head 3 is configured to be able to detect the difference in impact data between the sweet spot on the striking surface 2 and the other position
  • the impact data when the golf ball hits the sweet spot and when the golf ball does not hits the sweet spot can also be displayed on the LCD 100 in a numerical value and/or a graph via the controller 101 .
  • the impact data in a numerical value and/or a graph is displayed after the hitting direction of the golf ball is displayed.
  • the hitting direction and the impact data may be alternately displayed at predetermined intervals.
  • FIGS. 39 A and 39 B are side views illustrating modifications of the golf club 1 described in the first to sixth embodiments.
  • On the lower surface of the head 3 of the golf club 1 one of multiple adapters 3 A, 3 B is detachably attached.
  • As adapters 3 A, 3 B multiple types having different shapes, weights, and centers of gravity points, for example, are prepared.
  • the adapter 3 A illustrated in FIG. 39 B is used when the user wishes to increase the lie angle L more than adapter 3 B illustrated in FIG. 39 A .
  • FIGS. 39 A and 39 B illustrate the golf club 1 not having the hosel 4 , the presence or absence of the hosel 4 is irrelevant.
  • the adapters 3 A, 3 B are assumed to be selected one therefrom and mounted to the lower surface of the head 3 by the user or the instructor (trainer), for example.
  • the adapters 3 A, 3 B are preferably mounted to the lower surface of the head 3 via, for example, a locking structure (clips) or a fastening structure (screw) that can be easily detached.
  • the swing trajectory of the golf club 1 can be easily optimized, and the practice effectiveness can be enhanced.
  • the lie angle Li is an angle on the user's side from the shaft 5 between angles that the shaft 5 forms with respect to the horizontal plane when the striking surface 2 of the head 3 is viewed horizontally from the front.
  • FIGS. 39 A and 39 B can be applied to any of the golf clubs described in the first to sixth embodiments, and needless to say, the configurations except for the adapters 3 A, 3 B and the manner of mounting thereof are the same as those of the respective embodiments.
  • the vibration sensor 81 , the vibrating device 82 , and the speaker 82 A of the first embodiment described with reference to FIG. 15 can be applied to any of the second to sixth embodiments.
  • the various vibration transmitting members 20 and the auxiliary vibration transmitting members 30 described in the first and second embodiments can be applied to the golf clubs of the third, fourth, and sixth embodiments, of course.
  • the insert described in the third embodiment can also be provided on the striking surface 2 of the head 3 of the first, second, fourth to sixth embodiments.
  • the first to third, the fifth, and the sixth embodiments may provide one or more fin or plate members 86 between the head 3 and the one end portion of the shaft 5 or the hosel 4 .
  • the golf club 1 is exemplified by a putter, but the golf club 1 may of course also be other golf clubs (e.g., wood, hybrids, utilities).
  • members denoted by the same reference signs represents the same member.
  • circuit battery to amplify a signal detected by a sensor or a pickup in the amplifier and output the amplified signal from the speaker does not appear in the drawing, the circuit battery is provided inside or outside the golf club according to the requirement.
  • the battery for the smartphone also serves as a circuit battery.
  • a switch SW 1 (indicated by a dashed line in FIG. 36 ) may be interposed in the circuit shown in FIG. 36 .
  • the position where switch SW 1 is interposed is set, for example, between the pickup 20 A, 30 A, 40 A and the amplifier 90 A, 90 B, 90 C or between the amplifier 90 A, 90 B, 90 C and the speaker 91 A, 91 B, 91 C.
  • the amplifier 90 A, 90 B, 90 C amplifies the sound based on the detected data by the pickup 20 A, 30 A, 40 A and a sensor, and the amplified sound is then output from the speaker 91 A, 91 B, 91 C.
  • such sound is not output when the switch is turned off.
  • the on/off status of the switch SW 1 can be appropriately selected by the user.
  • the switch SW 1 is arranged at a position operable from the outer surface of the golf club 1 .
  • a switch SW 1 that can switch the on/off status via radio communication is used.
  • a switching switch SW 2 is interposed in the circuit shown in FIG. 38 and the switch SW 2 is switched so as to be connected to the LCD 100 , the LCD 100 displays the hitting direction and the impact data in a numerical value and a graph; when the switch SW 2 is switched so as to be connected to the speaker 100 A, the speaker 100 A outputs one of rhythm sound and synthesized voice generated by one of the rhythm box function and the synthesized voice generating function of the controller 101 ; and when the switch SW 2 is switched so as to be connected to both the LCD 100 and the speaker 100 A, the LCD 100 displays the hitting direction, the impact data in a numerical value and a graph and the speaker 100 A outputs one of rhythm sound and synthesized voice.
  • the SW 2 may be sufficiently an on/off switch.
  • a method of producing the golf club 1 may employ various manufacturing techniques in addition to or in place of a normal manufacturing technique.
  • the golf club 1 can be manufactured using a 3 D printer, manufactured using a seamless welding technique, manufactured using a casting technique, or manufactured by appropriately combining these techniques.
  • the vibration transmitting member 20 provided to the golf club 1 described above can be referred to as an impact-vibration/impact-sound emphasizing mechanism for emphasizing the impact vibration generated when the golf ball is hit.
  • the above embodiments illustrate an example the golf club 1 that includes the vibration transmitting member 20 serving as an impact-vibration/impact-sound emphasizing mechanism.
  • a diaphragm member 200 serving as a impact-vibration/impact-sound emphasizing mechanism is attached to the head 3 of the golf club 1 .
  • FIGS. 40 A to 40 C are perspective views of the golf club 1 according to the seventh embodiment, and FIG. 40 A illustrates an example of the golf club 1 not having a hosel.
  • This golf club 1 has the shaft 5 formed in a shaft shape, the head 3 provided on a lower end side (the first end side, one end side) of the shaft 5 and having the a striking surface 2 that strikes a golf ball, and the grip 6 provided on an upper end side (the second end side, the other end side) of the shaft 5 and gripped by a user, and a diaphragm member 200 is attached to the head 3 .
  • the heads 3 in FIGS. 40 A to 40 C may have any well-known shapes, such as a mallet type and a neomallet type illustrated in FIGS. 2 B and 2 C , in addition to those illustrated in FIG. 2 A .
  • the golf club 1 of FIG. 40 A has the shaft 5 extending in a straight line whereas the golf club 1 of FIG. 40 B has the crank-shaped shaft 5 having a bending portion bent toward the front (the side where the striking surface 2 is located) of the head 3 at the lower end of the shaft 5 .
  • the golf club 1 of FIG. 40 C has a structure in which the shaft 5 and the head 3 are connected by the hosel 4 having a bending portion bent toward the front (the side where the striking surface 2 is located) of the head 3 .
  • the golf club 1 may have any known structure for connecting the head 3 and the shaft 5 , such as a structure in which the straight shaft 5 is connected to the head 3 , a structure in which a crank-shaped shaft 5 is connected to the head 3 , and a structure in which the shaft 5 is connected to the head 3 via a crank-shaped hosel 4 , as shown in FIGS. 40 A to 40 C , respectively.
  • the diaphragm member 200 may be integrally attached to the head 3 in a non-replaceable manner (non-removable) manner, or may be detachably attached to the head 3 (retrofittable, in separated form).
  • a method of attaching the diaphragm member 200 to the head 3 in a non-detachable or detachable manner any known method such as bonding, crimping, welding, and fitting may be used.
  • the diaphragm member 200 shown in FIG. 41 A is attached to the head 3 , and more specifically is attached to the front side where the striking surface 2 is formed.
  • the diaphragm member 200 is formed to cover a part or all of the head 3 . In other words, the diaphragm member 200 functions as the striking surface 2 .
  • the impact vibration generated when the golf ball is hit is transmitted to the diaphragm member 200 and emphasized by the diaphragm member 200 . Therefore, it is possible to emphasize (increase) vibration transmitted to the palm of the user through the shaft 5 and the grip 6 and impact sound (acoustic sound) heard by the user. Consequently, the impact feeling and the impact sound can be enhanced as compared to a related golf club not attached with the diaphragm member 200 .
  • FIGS. 41 B and 41 C are modifications of FIG. 41 A .
  • the diaphragm member 200 is attached to the back surface side opposite to the front surface on the head 3 .
  • FIG. 41 C shows a head 3 having a sub-diaphragm member 201 in addition to diaphragm member 200 attached to the front surface of the head 3 .
  • the sub-diaphragm member 201 is attached to the back surface of the head 3 opposite to the front surface.
  • the sub-diaphragm member 201 is a plate member having a function of emphasizing impact vibration generated when a golf ball is hit similar to the diaphragm member 200 , and is provided as a plate member separated from the diaphragm member 200 .
  • the impact vibration generated when the golf ball is hit is transmitted to the diaphragm member 200 and emphasized by the diaphragm member 200 , so that the vibration transmitted to the palm of the user and the impact sound (acoustic sound) heard by the user can be emphasized and the impact feeling and the impact sound can be enhanced.
  • the golf clubs 1 shown in FIGS. 42 A to 42 C are modifications of FIGS. 41 A to 41 C , and the heads 3 thereof each have a head hollow portion 202 (indicated by a dashed line in the drawing) formed in a hollow shape.
  • an opening 202 A communicating with head hollow portion 202 and the outside is provided on the front surface of the head 3 , and the diaphragm member 200 is attached so as to cover the opening 202 A.
  • an opening 202 A communicating with head hollow portion 202 and the outside is provided on the back surface of the head 3 , and the diaphragm member 200 is attached so as to cover the opening 202 A.
  • the golf club 1 of FIG. 42 B an opening 202 A communicating with head hollow portion 202 and the outside is provided on the back surface of the head 3 , and the diaphragm member 200 is attached so as to cover the opening 202 A.
  • openings 202 A, 202 A′ communicating with head hollow portion 202 and the outside are provided on the front surface and the back surface of the head 3 , and the diaphragm member 200 and the sub-diaphragm member 201 are attached so as to cover the openings 202 A, 202 A′, respectively.
  • the head 3 of FIG. 42 C can be said to have a drum structure in which both sides (openings 202 A, 202 A′) of the cavity of the head hollow portion 202 are covered with the diaphragm member 200 and the sub-diaphragm member 201 .
  • the head hollow portion 202 serves as a resonance mechanism that emphasizes impact sound generated when the golf ball is hit and transmits the emphasized impact sound from the opening 202 A (and 202 A′) to the outside.
  • the golf clubs 1 in FIGS. 42 A to 42 C have, as an impact-vibration/impact-sound emphasizing mechanism, the head hollow portion 202 that forms a resonance mechanism.
  • the diaphragm member 200 (and the sub-diaphragm member 201 ) is attached to opening 202 A (and 202 A′), the impact feeling and the impact sound can be further enhanced.
  • the head hollow portion 202 forming the resonance mechanisms may have a structure not having opening 202 A (and 202 A′).
  • FIG. 42 A to 42 C may have a structure not having the diaphragm member 200 (and sub-diaphragm member 201 ).
  • This alternative structure emphasizes the impact sound resonated in the head hollow portion 202 . In this case, at least on the side of the striking surface 2 may be closed without providing the opening 202 A.
  • FIGS. 41 A to 43 C are perspective views of a golf club 1 in which a diaphragm member 200 , serving as an impact-vibration/impact-sound emphasizing mechanism, is attached to the hosel 4 .
  • the golf clubs 1 shown in FIGS. 43 A to 43 C are constructed in the same manner as the golf clubs 1 of FIGS. 40 A to 40 C except that the diaphragm member 200 in a flat-plate shape is attached to the hosel 4 .
  • the hosels 4 of FIGS. 40 A to 40 C are each formed in a rectangular flat plate shape, and the hosel 4 and the head 3 are provided so as to be flush with the striking surface 2 (to form the same plane).
  • the golf club 1 of FIG. 43 A has the hosel 4 connected to the shaft 5 extending in straight line shape
  • the golf club 1 of FIG. 43 B has the hosel 4 connected to the crank-shaped shaft 5 having a bending portion bent toward the front (the side where the striking surface 2 is located) of the head 3
  • the golf club 1 of FIG. 43 C has another hosel having a bending portion bent toward the front of the 3 and extending to the upper side on the hosel 4 in a flat plate shape.
  • the golf club 1 may have any known structure, such as a structure in which a straight shaft 5 is connected to the hosel 4 , a structure in which a crank-shaped shaft 5 is connected to the hosel 4 , and a structure in which a crank-shaped hosel is further extended from the hosel 4 as shown in FIGS. 43 A to 43 C .
  • FIG. 44 A is a side view when the head 3 and a hosel of the golf club 1 of FIG. 43 A viewed from an arrow B, and a left side in the drawing is a front side of the head 3 .
  • the diaphragm member 200 in FIG. 44 A is attached to the front surface of the hosel 4 .
  • the diaphragm member 200 is formed to cover a part or all of the hosel 4 .
  • the diaphragm member 200 may be formed separately from the hosel 4 or may be formed integrally with the hosel 4 .
  • the impact vibration generated when the golf ball is hit is transmitted from the head 3 to the diaphragm member 200 attached to the hosel 4 , and is emphasized by the diaphragm member 200 . Therefore, it is possible to emphasize (increase) vibration transmitted to the palm of the user through the shaft 5 and the grip 6 and impact sound (acoustic sound) heard by the user. Consequently, the impact feeling and the impact sound can be enhanced as compared to a related golf club not attached with the diaphragm member 200 .
  • FIGS. 44 B, 44 C, and 44 D are modifications of FIG. 44 A .
  • the diaphragm member 200 is attached to the back side of the hosel 4 .
  • the golf club 1 of FIG. 44 C includes the sub-diaphragm member 201 attached to the back surface of the hosel 4 in addition to diaphragm member 200 attached to the front surface of the hosel 4 .
  • the diaphragm member 200 of FIG. 44 D is attached at a position between the front and back surfaces of the hosel 4 .
  • the impact vibration generated when the golf ball is hit is transmitted from the head 3 to the diaphragm member 200 attached to the hosel 4 and emphasized by the diaphragm member 200 , so that the vibration transmitted to the palm of the user and the impact sound (acoustic sound) heard by the user can be emphasized, and the impact feeling and the impact sound can be enhanced.
  • the diaphragm member 200 (sub-diaphragm member 201 ) may be attached to the head 3 as shown in FIGS. 41 A to 41 C .
  • the golf clubs 1 shown in FIGS. 45 A to 45 D each have the hosel 4 and attach the diaphragm member 200 over the head 3 and the hosel 4 .
  • the diaphragm member 200 of FIG. 45 A is formed of a single plate-like member extending over the front surfaces of both the head 3 and the hosel 4 .
  • the golf club 1 shown in FIG. 41 B has a sub-diaphragm member 201 attached to the back surface of the hosel 4 in addition to diaphragm member 20 of the golf club 1 shown in FIG. 45 A .
  • the diaphragm member 200 attached over both the head 3 and the hosel 4 is bent in a crank shape (S-shape) when viewed from the side.
  • the diaphragm member 200 in FIG. 45 C has a portion attached to the back surface of the head 3 and a portion attached to the front surface of the hosel 4 which portions are continuously provided via the bending portion.
  • the diaphragm member 200 in FIG. 45 D has a portion attached to the front side of the head and a portion attached to the back side of the hosel 4 which portions are connected by the bending portion.
  • the diaphragm member 200 in FIG. 45 E has a portion attached to the back side of the head and a portion attached to the back side of the hosel 4 which portions are connected by the bending portion.
  • the impact vibration generated when the golf ball is hit is transmitted from the head 3 to the diaphragm member 200 attached to the hosel 4 and emphasized by the diaphragm member 200 , so that the vibration transmitted to the palm of the user and the impact sound (acoustic sound) heard by the user can be emphasized, and the impact feeling and the impact sound can be enhanced.
  • the diaphragm member 200 may have a bent portion of which corners are rounded.
  • FIG. 46 A is a modification of FIG. 45 B , in which the head 3 has a head hollow portion 202 (indicated by a dashed line in the drawing) and a opening 202 A, and the hosel 4 has a hosel hollow portion 203 (indicated by a dashed line in the drawing) formed in a hollow-like shape, and opening 203 A on the front side and opening 203 A′ on the back side.
  • the diaphragm member 200 is attached so as to cover the opening 202 A of the head hollow portion 202 and the opening 203 A on the front side of the hosel hollow portion 203 .
  • the sub-diaphragm member 201 is attached so as to cover the opening 203 A on the back side of the hosel hollow portion 203 .
  • FIG. 46 B is a modification of FIG. 46 A .
  • the head hollow portion 202 and the hosel hollow portion 203 are formed separately and do not communicate with each other.
  • the head hollow portion 202 and the hosel hollow portion 203 communicate with each other.
  • the impact sound (acoustic sound) that the user hears can be enhanced, and in addition, by the diaphragm member 200 (and sub-diaphragm member 201 ) attached to opening 202 A, 203 A (and 203 A′) can further enhance the impact feeling and the impact sound.
  • the golf clubs 1 of FIGS. 46 A and 46 B are assumed to have the diaphragm member 200 and the sub-diaphragm member 201 like FIG. 45 B .
  • any of the the golf clubs 1 of FIGS. 45 A to 45 D can enhance the impact feeling and the impact sound by further forming the head hollow portion 202 and the hosel hollow portion 203 serving as the resonance mechanism like FIGS. 46 A and 46 B
  • the golf clubs 1 in FIGS. 47 A to 47 F are different in the shape of the hosel 4 from the golf club 1 in FIG. 43 .
  • the golf club 1 of FIG. 47 A includes the hosel 4 having a trapezoidal shape (or a substantially triangular shape) when viewed from the front, and a diaphragm member 200 attached to the trapezoidal hosel 4 .
  • the golf club 1 of FIG. 47 B includes the hosel 4 having a semicircular shape (or an arc shape) when viewed from the front, and a diaphragm member 200 attached to the semicircular hosel 4 .
  • the golf club 1 of FIG. 47 C includes the diaphragm member 200 attached to the trapezoidal the hosel 4 , and is different from that of FIG. 47 A in the point that the front surface of the hosel 4 is provided on the back side of the front surface (striking surface 2 ) of the head 3 (i.e., not flush with the striking surface 2 ).
  • FIGS. 47 A to 47 C The shapes of the hosel 4 of the golf clubs 1 shown in FIGS. 47 A to 47 C also make it possible to attach the diaphragm member 200 (and the sub-diaphragm member 201 ) in the manner shown in FIGS. 44 A to 44 C and FIGS. 45 A to 45 D .
  • FIGS. 47 A to 47 C are exemplary, and the shapes, sizes, and thicknesses of the hosel 4 are arbitrary.
  • attaching the diaphragm member 200 (and sub-diaphragm member 201 ) can enhance the impact feeling and the impact sound regardless of the shapes, sizes, and thicknesses of the hosel 4 .
  • the golf clubs 1 of FIGS. 47 D to 47 F connect therein crank-shaped shafts 5 bent forward of the heads 3 as compared to the golf clubs 1 shown in FIGS. 47 A to 47 C . respectively.
  • the structure to connect the hosel 4 with the shaft 5 may be any known structure.
  • FIGS. 48 A to 48 D are modifications of the diaphragm member 200 attached to the head 3 of the golf club 1 (see FIG. 40 ) not having the hosel 4 .
  • the diaphragm members 200 of FIGS. 48 A to 48 D are each formed of a plate member extending parallel to the striking surface 2 , has a portion extending above the head 3 , and is connected to the shaft 5 via a connecting portion 204 disposed on the upper end thereof.
  • FIGS. 48 A to 48 D each have a structure in which the head 3 and the shaft 5 are connected to each other via the diaphragm member 200 in place of the hosel 4 .
  • the diaphragm member 200 shown in FIG. 48 A is provided upright on the upper surface of the head 3 and is flush with the striking surface 2 of the head 3 .
  • the golf club 1 of FIG. 48 B includes the sub-diaphragm member 201 provided upright on the upper surface of the head 3 in addition to the diaphragm member 200 of FIG. 48 A , and the sub-diaphragm member 201 is arranged on closer to the back surface of the head 3 than the diaphragm member 200 .
  • the diaphragm member 200 of FIG. 48 C is different from the golf club 1 of FIG. 48 B in the point that the lower end the diaphragm member 200 extends to the lower end of the head 3 and is overlaid on (pasted onto) the striking surface 2 of the head 3 .
  • the golf clubs 1 in FIGS. 48 B and 48 C each have a drum structure in which the diaphragm member 200 and the sub-diaphragm member 201 arranged apart from and opposite to each other.
  • the diaphragm member 200 of FIG. 48 D is different from the golf club 1 of FIG. 48 A the lower end thereof extends to the lower end of the head 3 and the diaphragm member 200 is overlaid on the striking surface 2 of the head 3 .
  • the golf clubs 1 shown in FIGS. 49 A to 49 D are modifications of those of FIGS. 48 A to 48 C .
  • the diaphragm members 200 of FIGS. 48 A to 48 C are each formed of a plate member extending parallel to the striking surface 2 whereas the diaphragm members 200 of FIGS. 49 A to 49 D are each formed into a bent plate shape curved in a lateral cross-sectional surface perpendicular to the striking surface 2 .
  • the dimension and the curvature of the curved portion can be appropriately set so as to enhance the impact vibration and the impact sound.
  • the diaphragm member 200 of FIGS. 49 A and 49 B are each provided upright on the upper surface of the head 3 like FIG. 48 A , but are different from FIG. 48 A in the point that the diaphragm member 200 is formed into a bent plate shape.
  • the diaphragm member 200 may be integral with the head 3 or may be separated from the head 3 .
  • the diaphragm member 200 of FIG. 49 A is formed in a bent plate shape that projects toward the back side on a lateral cross-sectional surface perpendicular to the striking surface 2 .
  • the diaphragm member 200 of FIG. 49 B is formed in a bent plate shape that projects toward the front side on a lateral cross-sectional surface perpendicular to the striking surface 2 .
  • the diaphragm members 200 of FIGS. 49 C and 49 D are modifications of FIG. 48 C , and is different from FIG. 48 C in the point that a portion above the upper surface of the head 3 of the diaphragm member 200 extending from the lower end of the head 3 to the connecting portion 204 is formed in a bent plate shape.
  • the portion above the upper surface of the head 3 is formed in a bent plate shape that projects toward the back side on a lateral cross-sectional surface perpendicular to the striking surface 2 .
  • the portion above the upper surface of the head 3 is formed in a bent plate shape that projects toward the front side on a lateral cross-sectional surface perpendicular to the striking surface 2 .
  • the diaphragm members 200 of FIGS. 50 A to 50 E each extend from the lower end of the head 3 to the connecting portion 204 and has a bent portion bent in a crank shape (or S-shape).
  • the direction of the bent portion, the shape of the diaphragm member 200 , and the shape of the head 3 can be arbitrarily set according to the combination thereof.
  • FIG. 51 A and FIG. 51 B are front views of the golf club 1 and show the head 3 (and the hosel 4 ) in cross sections.
  • the golf club 1 of FIG. 51 A is one not having a hosel, and has a frame structure 3 A in which the head 3 surrounds a circumference portion of the diaphragm member 200 .
  • the frame structure 3 A is a frame surrounding the four sides (circumference portion) of the diaphragm member 200 in a rectangular shape.
  • the diaphragm member 200 supported by frame structure 3 A emphasizes the impacting vibration and the impact sound generated when the golf ball is hit, so that the impact feeling and the impact sound can be enhanced.
  • the head 3 is formed of a frame, the weight can be easily reduced.
  • the golf club 1 can be configured as an assembled golf club (so-called “plastic model” type golf club formed by combining parts) of which parts such as the diaphragm member 200 , a face (striking surface), a weight, a balance, an insert, a hosel, and a sub-diaphragm member 201 with respect to the frame structure 3 A can be freely selected by the user and assembled.
  • an assembled golf club so-called “plastic model” type golf club formed by combining parts
  • parts such as the diaphragm member 200 , a face (striking surface), a weight, a balance, an insert, a hosel, and a sub-diaphragm member 201 with respect to the frame structure 3 A can be freely selected by the user and assembled.
  • the golf club 1 of FIG. 51 (B) has a frame structures 3 A, 4 A in which the head 3 and the hosel 4 surround the circumference portion of the diaphragm member 200 .
  • the frame structures 3 A, 4 A of FIG. 51 B are formed integrally.
  • the golf club 1 illustrated in FIGS. 52 A and 52 B includes the hosel 4 having a trapezoidal shape (or a substantially triangular shape) when viewed from the front.
  • the golf club 1 of FIG. 52 A is one in which the hosel 4 has a frame structure 4 A
  • the golf club 1 of FIG. 52 B is one in which both the head 3 and the hosel 4 have frame structures 3 A, 4 A, respectively.
  • the golf clubs 1 illustrated in FIGS. 53 A and 53 B each include the hosel 4 having a semicircular shape.
  • the golf club 1 of FIG. 53 A is one in which the hosel 4 has a frame structure 4 A
  • the golf club 1 of FIG. 53 B is one in which both the head 3 and the hosel 4 have frame structures 3 A, 4 A, respectively.
  • the golf club 1 illustrated in FIG. 53 C has a structure that supports a diaphragm member 200 having a semi-circular outline at the upper portion with a frame structure 3 A.
  • the upper part of diaphragm member 200 extends above frame structure 3 A, and the shaft 5 is connected to the upper part of diaphragm member 200 .
  • the golf club 1 illustrated in FIG. 53 (D) is a modification of a structure in which a diaphragm member 200 having an upper portion with a semi-circular outline is supported by the frame structure 3 A, and has a structure in which the circumference of the diaphragm member 200 is surrounded by the frame structure 3 A.
  • the golf clubs 1 of FIGS. 51 B, 52 A, 52 B, and 53 A to 53 D bring the same effect as that of FIG. 51 A .
  • FIG. 54 A is the golf club 1 in which the head 3 having the frame structure 3 A is integrally formed with the shaft 5 in an unreplaceable state.
  • FIG. 54 B is the golf club 1 in which the head 3 and the hosel 4 having the frame structures 3 A, 4 A, respectively is integrally formed with the shaft 5 in an unreplaceable state. Also these modifications bring the same effect as that of FIG. 51 A .
  • FIGS. 55 A to 55 D are examples of a golf club 1 in which a diaphragm member 200 is formed into a truncated cone (cone) shape.
  • the diaphragm member 200 in each of FIGS. 55 A to 55 D is installed in such a posture that the large diameter side of the truncated cone directs the back side of the head 3 .
  • the golf club 1 of FIG. 55 A is one not having the hosel 4 , and the diaphragm member 200 thereof is attached to the back surface of the head 3 .
  • the golf club 1 of FIG. 55 B is one having the hosel 4 , and the diaphragm member 200 thereof is attached to the back surface of the hosel 4 .
  • the impact sound can be emphasized in the direction in which the large diameter side of the truncated-cone diaphragm member 200 directs (i.e., the back side of the head 3 ).
  • the golf club 1 of FIG. 55 C is different from the golf club 1 of FIG. 55 A in the point that an enclosure 200 E that surrounds the circumference of the diaphragm member 200 is provided.
  • FIG. 55 D shows one that coaxially arranges two diaphragm members 200 , 200 ′.
  • the diaphragm member 200 shown in FIG. 55 E is formed in a dome shape.
  • the golf club 1 of FIG. 55 A is one not having the hosel 4 , and the diaphragm member 200 in a dome shape thereof is attached to the rear side of the head 3 .
  • the diaphragm member 200 is attached in a posture that protrudes toward the back side of the head 3 .
  • the impact sound can be emphasized in the direction in which the apex of the dome-shaped diaphragm member 200 directs (i.e., on the back side of the head 3 ).
  • the diaphragm member 200 of FIG. 55 F is a combination a truncated-cone diaphragm member and a dome-shaped diaphragm member. Specifically, the diaphragm member 200 has a dome portion (indicated by a dashed line in the drawing) and a conical portion extending from the circumference of the dome portion in a truncated-cone shape.
  • the diaphragm member 200 of FIG. 55 F is attached to the back side of the head 3 in such a posture that the large diameter side of the conical portion and the apex of the dome portion direct the back side of the head 3 .
  • the combination of the two diaphragm members of this example makes it possible to further emphasize the impacting sound.
  • FIGS. 56 A to 56 H are diagrams illustrating the diaphragm member 200 formed into a bent plate shape.
  • the respective diaphragm members 200 are curved in arc shapes, and emphasize the impact vibration and the impact sound by the vibration of the arc-shaped curved surface. It is well known that the use of vibration of such curved surface can enhance the acoustic sound based on the vibration (enhancement in volume and hearability).
  • the golf clubs 1 of FIGS. 56 A to 56 C and 56 G each have the head 3 formed into an L shape in a side view and do not have a hosel.
  • the golf clubs 1 in FIGS. 56 D and 56 E each have the head 3 formed into a C shape in a side view and do not have a hosel, and the golf club 1 of FIG. 56 F has a head 3 and the hosel 4 each formed into an L shape in a side view, which are assembled together into a C shape in a side view.
  • the diaphragm members 200 of FIGS. 56 A to 56 C are each attached in such a posture that extending toward the back side of the head 3 , and formed in a bent plate shape curved upward or downward in a lateral cross-sectional surface perpendicular to the striking surface 2 (on a surface viewed from the side of the head 3 ).
  • the diaphragm members 200 of FIGS. 56 A and 56 C are ones curved upward in a lateral cross-sectional surface perpendicular to the striking surface 2 .
  • the diaphragm member 200 of FIG. 56 B is one curved downward in a lateral cross-sectional surface perpendicular to the striking surface 2 .
  • the golf clubs 1 of FIGS. 56 D and 56 E are examples each in which two diaphragm members 200 , 200 ′ in bent plate shapes are arranged on the back surface of the head 3
  • the golf club 1 of FIG. 56 F is an example in which two diaphragm members 200 , 200 ′ in bent plate shapes are arranged on the back side of the head 3
  • the respective diaphragm members 200 , 200 ′ are attached in a posture extending toward the back side of the head 3 , and formed in a bent plate shape curved upward or downward in a lateral cross-sectional surface perpendicular to the striking surface 2
  • the golf club 1 of FIG. 56 H has a common structure to the golf club 1 of FIG. 56 F except for that the diaphragm members 200 , 200 ′ are attached to the head 3 formed into a C shape in a side view.
  • the diaphragm member of FIG. 56 G is a combination of a diaphragm member 200 formed into a truncated cone shape illustrated in FIG. 55 A and the above-described diaphragm member 200 ′ in a bent plate shape. Combining two diaphragm members different in type can further enhance the impact sound.
  • FIGS. 57 A to 57 C are modifications of a bent direction of the diaphragm member 200 in a bent plate shape.
  • FIGS. 57 A to 57 C are plane views of the head 3 in a top view and the left side of the drawing is the front side (forward side).
  • the plate-shaped diaphragm members 200 shown in FIGS. 57 A to 57 C are ones formed into bent plate shape curved in one (or the other) direction on a horizontal plane when the head 3 are seen from the top.
  • the head 3 of FIGS. 57 A and 57 B each have two diaphragm members 200 , 200 ′ in bent plate shapes.
  • the diaphragm member of FIG. 57 C is a combination of a diaphragm member 200 formed into a truncated cone shape illustrated in FIG. 55 A and the above-described diaphragm member 200 ′ in bent plate shapes.
  • the diaphragm members 200 , 200 ′ in bent plate shape may be integrally formed.
  • FIGS. 58 A to 58 E are plane views of the head 3 illustrating modifications of the diaphragm member 200 and the left side of the drawing is the front side (forward side).
  • FIGS. 58 A to 58 C are modifications of the diaphragm member 200 in a bent plate shape in each of which an arc-shaped diaphragm member 200 protruding toward the back side of the head 3 is attached to the back surface of the head 3 on a horizontal plane when the head 3 is seen from a top.
  • the diaphragm member 200 is attached to the back surface of the head 3
  • a rib 200 R is attached between the diaphragm member 200 and the rear surface of the head 3 in a direction intersecting with the arc.
  • the rib 200 R reinforces the diaphragm member 200 and also enhances the transmission of the vibration.
  • FIG. 58 B shows an example in which the diaphragm member 200 is mounted in a recess 3 X recessed on the upper surface of the head 3 .
  • FIG. 58 C the recess 3 X to which diaphragm member 200 is mounted as FIG. 58 B is covered with a cover 3 Y.
  • FIG. 58 D shows an arc-shaped diaphragm member 200 recessed toward the back side of the head 3 is attached to the back side of the head 3 on a horizontal plane when the head 3 is seen from a top.
  • a rib 200 R extending along the arc is attached on a curved surface of the diaphragm member 200 .
  • One or more ribs 200 R may be attached.
  • the multiple ribs 200 R are aligned vertically, for example. That is, the number of ribs 200 may be one or more.
  • the head 3 is formed in a mallet shape having a sole portion 3 W extending to a planar side, and the diaphragm member 200 is attached to the upper surface of the sole portion 3 W.
  • FIGS. 59 A to 59 D illustrate golf clubs 1 according to the eighth embodiment, and are specifically cross sectional views of the head 3 seen from a side.
  • a horn-shaped piping route 206 is formed in a hollow portion 202 of the head 3 and the hosel 4 , and an opening 206 A communicating with the piping route 206 is provided.
  • the piping route 206 and the opening 206 A are unitedly configured as a resonance mechanism (horn-type resonance mechanism, phonograph-type resonance mechanism) that emphasizes, in the piping route 206 , the impact sound generated when the golf ball is hit and transmits the emphasized impact sound from the opening 206 A to the outside.
  • the head 3 is provided with a horn-shaped piping route 206 and an opening 206 A communicating with the piping route 206 .
  • the piping route 206 is formed into an R shape, whose diameter comes to be wider as approaching the opening 206 A, and therefore has excellent acoustical properties to further enhance the impact sound.
  • a dome-shaped (spherical) piping route 206 is formed in a hollow portion 202 of the head 3 and the hosel 4 , and an opening 206 A communicating with the piping route 206 is provided.
  • the piping route 206 and the opening 206 A are unitedly configured as a resonance mechanism (dome-type resonance mechanism) that emphasizes, in the piping route 206 , the impact sound generated when the golf ball is hit and transmits the emphasized impact sound from the opening 206 A to the outside.
  • the head 3 is provided with a horn-shaped piping route 206 and an opening 206 A communicating with the piping route 206 .
  • the dome-shaped piping route 206 can resonate and enhance the impact sound.
  • the diaphragm member 200 may have a cylindrical shape as shown in FIG. 60 A . Further, as shown in FIG. 60 B , the diaphragm member 200 may be arranged such that the plate-shaped member extends horizontally from the back surface of the head 3 .
  • the manner of attaching the diaphragm member 200 to the head 3 may include folding the end of diaphragm member 200 into an L-shape and securing the portion folded into an L-shape to the back surface of the head 3 .
  • the diaphragm member 200 may be attached to the head 3 by inserting the end of the diaphragm member 200 from the back side of the head 3 , or by welding the end of diaphragm member 200 to the back surface of the head 3 .
  • FIG. 60 C is a top view of FIG. 60 B .
  • multiple diaphragm members 200 having differing lengths are arranged side by side in the width direction of the head 3 . That is, the number of diaphragm members 200 is one or more.
  • the structure of FIGS. 60 B and 60 C vibrates the diaphragm members 200 cantilevered on the back surface of the head 3 , and can generate acoustic sound due to the vibration of the diaphragm members 200 as in the marimba of a musical instrument.
  • a spoiler 200 S can be provided between the diaphragm member 200 and the head 3 .
  • the spoiler 200 S is detachable from the golf club 1 and can be retrofitted. This means that the spoiler 200 S may be attached to an existing golf club to enhance the impact vibration and impact sound.
  • FIGS. 62 A to 62 D illustrate the shapes of the diaphragm member 200 viewed from a side.
  • the diaphragm member 200 can be weighted to adjust the center of gravity, or can be removably attached with a blade.
  • the shapes of the diaphragm member 200 in FIG. 62 A to 62 D are examples of the shapes that can enhance the impact vibration and the impact sound. Examples of a shape that can enhance the impact vibration and the impact sound include a C-shape (steel drum type) as shown in FIG. 62 A , a V-shape one of the sides of which is vertically arranged as shown in FIG. 62 B , a shape obtained by combining the V-shape as shown in FIG.
  • a detachable weight or blade member 200 X may be attached to an end portion of the diaphragm member 200 .
  • the center of gravity of the golf club 1 can be adjusted by the member 200 X.
  • the member 200 X can set another center of gravity on the back side of the head 3 in addition to the original center of gravity of the golf club 1 (set to be double-balanced). This facilitates hitting through when the user making follow-through.
  • FIG. 63 A to 63 D illustrates the diaphragm member 200 integrally formed with the shaft 5 and/or the hosel 4 in a non-replaceable manner.
  • the diaphragm member 200 integrated with the shaft 5 is detachably attached to the head 3 formed in a frame shape.
  • the diaphragm member 200 is arranged so as to have gaps on both left and right sides in the frame-shaped head 3 , and the both gaps are closed by plate members 200 Y. Since the diaphragm member 200 is provided to be spaced apart from the head 3 , the impact vibration generated when the golf ball is hit can be efficiently guided to the shaft 5 without being diffused in the head 3 .
  • the diaphragm member 200 may be provided in the frame-shaped head 3 without a gap on the left and right sides.
  • the plate members 200 Y may be diaphragm member. That is, a diaphragm member different in material from the diaphragm member 200 integrated with the shaft 5 is arranged in place of the plate members 200 Y. In this case, the diaphragm members made of different materials can be used in combination.
  • the diaphragm member 200 integrated with the shaft 5 is detachably attached to the head 3 formed in a frame shape, and the both left and right sides on the upper side of the diaphragm member 200 are closed by the cover members 200 Z. Further, a front cover member 200 K covering the entire front surface of the head 3 may be detachably attached to the diaphragm member 200 so as to overlie from the front side.
  • the diaphragm member 200 integrated with the shaft 5 is formed in a circular shape.
  • the circular shape makes it possible to adjust the installing angle to the head 3 .
  • a locking mechanism is provided which locks, after the installing angle to the head 3 is adjusted, the diaphragm member 200 at the adjusted angle.
  • the golf club 1 of FIG. 63 D has a diaphragm member 200 integrated with the hosel 4 .
  • the shaft 5 is connected to the hosel 4 integrated with the diaphragm member 200 .
  • the golf clubs 1 in FIGS. 63 A to 63 D each have a structure in which the diaphragm member 200 is integrated with the shaft 5 and/or the hosel 4 and is detachably attached to the head 3 formed into a separated form, the diaphragm member 200 can be arbitrarily combined with the head 3 .
  • the attachment and detachment of the diaphragm member 200 to and from the head 3 can be freely performed, for example, like replacing a cartridge (cassette tape).
  • the golf club 1 can be configured as an assembled golf club of which parts such as the diaphragm member 200 , a face (striking surface), a weight, a balance, an insert, a hosel, and a sub-diaphragm member 201 with respect to the head 3 can be freely selected by the user and assembled.
  • the golf club 1 in FIGS. 63 A to 63 E may have a structure in which a crank-shaped hosel 4 and/or shaft 5 as shown in FIGS. 40 B, 40 C, 43 B, and 43 C is integrated with the diaphragm member 200 as well as a straight shaft.
  • An insert may be arranged on the front surface of the diaphragm member 200 , or incorporated into the diaphragm member 200 .
  • the diaphragm member 200 may be integrally formed with the insert or may be detachably attached with the insert.
  • the shape of the diaphragm member 200 is not limited to the illustrated examples and can be arbitrary.
  • FIGS. 64 (A) , (B) illustrate a golf clubs 1 according to a ninth embodiment, which is provided with a vibration transmitting rib 210 serving as an impact-vibration/impact-sound emphasizing mechanism.
  • the vibration transmitting rib 210 is extended in a rib form from the head 3 to the shaft 5 , and transmits the impact vibration generated when a golf ball is hit from the head 3 to the shaft 5 .
  • the vibration transmitting rib 210 is a portion that forms a ridge-shaped protrusion from the head 3 to the front surface of the shaft 5 , and is formed so as to emphasize the impact vibration.
  • the golf club 1 of FIG. 64 A which has the hosel 4 , is provided with the transmitting rib 210 .
  • the golf club 1 of FIG. 64 B which has no hosel 4 , is provided with transmitting rib 210 .
  • the vibration transmitting rib 210 includes multiple branch portions 21 A attached to the head 3 (and the hosel 4 ) and a trunk portion 210 B extended along the axial direction of the shaft 5 and connected to the branch portions 210 A at the lower end side of the shaft (compared to bones of a fan). Providing the vibration transmitting rib 210 can increase the impact vibration transmitted to the palm of the user, and thereby can enhance the impact feeling.
  • FIG. 65 A shows a structure in which the diaphragm member 200 closes the opening 202 A formed on the upper side of the head hollow portion 202 in the head 3 formed into a bowl shape (bell shape).
  • the impact sound generated when the golf ball is hit by the striking surface 2 of the head 3 resonates in the head hollow portion 202 and is emitted from the opening 202 A to the outside, and also the striking impact is emphasized by the diaphragm member 200 .
  • the diaphragm member 200 that closes the opening 202 A may be omitted. Also in this alternative, the effect of emphasizing the impact sound in the head hollow portion 202 can be obtained.
  • FIG. 65 B illustrates a structure in which fins 5 X are provided between the shaft 5 and the head 3 .
  • the fins 5 X are provided as the diaphragm member 200 in a form of a thin plate or a membrane, and can emphasize the impact vibration.
  • the fins 5 X may be detachably attached to the golf club 1 (the head 3 ). With this structure, the fins 5 X may be attached to an existing golf club and can emphasize the impact vibration.
  • 65 C includes, as the impact-vibration/impact-sound emphasizing mechanism, a sound collector 220 attached to the back surface of the head 3 to collect the impact sound, an impact sound transmitting tube 221 that transmits the impact sound collected by the sound collector 220 , and an earphone 222 that transmits the impact sound propagated through the impact sound transmitting tube 221 to the user.
  • the user can clearly hear the impact sound collected by the sound collector 220 via the earphone 222 .
  • the impact-vibration/impact-sound emphasizing mechanism may be formed into a wireless configuration in which the impact sound transmitting tube 221 is omitted, the sound collector 220 is wirelessly connected to the earphone 222 , and the impact sound collected by the sound collector 220 is transmitted to the earphone 222 via wireless communication.
  • the sound collector 220 , the impact sound transmitting tube 221 , and the earphone 222 may each be detachably attached to the golf club 1 (the head 3 ).
  • the sound collector 220 , the impact sound transmitting tube 221 , and the earphone 222 can be arbitrarily attached to an existing golf club.
  • the golf club 1 of FIG. 65 D includes, as impact-vibration/impact-sound emphasizing mechanism, a pickup 230 that detects impact vibration and converts the detected vibration into an electric signal, an amplifier unit 231 that amplifies the impact sound based on the electric signal detected by the pickup 230 , and a speaker 232 that outputs the amplified impact sound.
  • the amplifier unit 231 and the speaker 232 unitedly constitute a “speaker unit”.
  • the pickup 230 (dashed line in the drawing), the amplifier unit 231 (dashed line in the drawing), and the speaker 232 are attached to the rear surface of the head 3 . In this case, since the impact sound can be converted into an electric signal and the impact sound can be electrically amplified and output from speaker unit, the impact sound can be more clearly output.
  • FIG. 65 E is a modification of FIG. 65 D in which the pickup 230 (dashed line in the drawing), the amplifier unit 231 (dashed line in the drawing), and the speaker 232 (dashed line in the drawing) are provided in the head hollow portion 202 of the head 3 .
  • the pickup 230 , the amplifier unit 231 , and speaker 232 may be detachably attached to the golf club 1 (the head 3 ). This case allows the pickup 230 , the amplifier unit 231 , and speaker 232 to be freely attached to an existing golf club.
  • the front side having the striking surface 2 is formed of a thin plate, and emphasizes the impact vibration by making the plate thickness on the striking surface 2 thin.
  • various electric functions can be provided to the head 3 by detachably providing batteries 3 E on both sides of the head 3 and appropriately wiring power lines from the batteries 3 E. Examples of the electrical functions provided to the head 3 include LED lights, an electrical decoration, a laser, a sensor, a tester, and a communication function.
  • FIGS. 66 A and 66 B are diagrams illustrating a golf club 1 providing a vibration emphasizing member to the shaft 5 , and specifically are cross-sectional views in the radial direction of the shaft 5 .
  • a vibration emphasizing member is a member that emphasizes the impact vibration generated when the striking surface 2 hits the golf ball and transmits the emphasized impact vibration to a user, and is provided on a circumference surface around the axis of the shaft 5 so as to extend in the axial direction of the shaft 5 .
  • a vibration emphasizing member 5 A is provided on an inner circumference surface of the shaft 5 formed in a hollow shape.
  • the vibration emphasizing member 5 A is formed by a coating film formed on the inner circumference surface of the shaft 5 by plating rhodium, copper, gold, or the like. If carbon fibers are used as the vibration emphasizing member 5 A, for example, multiple carbon fibers extending along the axial direction of the shaft 5 can be bundled and formed into a shape along the inner peripheral surface or outer circumference surface of the shaft 5 .
  • a vibration emphasizing member 5 B is provided on an outer circumference surface of the shaft 5 formed in a hollow shape.
  • the vibration emphasizing member 5 B is formed by a coating film formed on the outer circumference surface of the shaft 5 by plating rhodium, copper, gold, or the like. If carbon fibers are used as the vibration emphasizing member 5 B, for example, multiple carbon fibers extending along the axial direction of the shaft 5 can be bundled and formed into a shape along the inner peripheral surface or outer circumference surface of the shaft 5 .
  • the material used for the vibration emphasizing member 5 A, 5 B of FIGS. 66 (A) and (B) may be any material that emphasizes the impact vibration and can be exemplified by various metals such as rhodium, copper, alloy, and pure gold, and carbon fiber. If carbon fibers are used, for example, multiple carbon fibers extending along the axial direction of the shaft 5 can be bundled and formed into a shape along the inner peripheral surface or outer circumference surface of the shaft 5 .
  • the impact-vibration/impact-sound emphasizing mechanism includes a vibration sensor 300 that is attached to the head 3 and detects vibration generated on the striking surface 2 and an actuator 301 that vibrates on the basis of the electric signal outputted from the vibration sensor 300 , and transmits the vibration of the actuator 301 to the user via the vibration transmitting member 20 .
  • the vibration caused from the electric drive is transmitted to the user in addition to the actual impact vibration, the impact vibration can be emphasized.
  • the shape of the golf club 1 (e.g., the shapes, sizes, and thicknesses of the head 3 , the hosel 4 , and the shaft 5 ) is not limited to the above-described embodiment, and may be any of known one.
  • the installing position of the shaft 5 to the head 3 is not limited to the illustrated examples.
  • the position of the shaft 5 in the front-rear direction of the head 3 may be arbitrary, such as the position on the front surface, the position on the back surface, and the intermediate position between the front and back surfaces of the head 3 .
  • the position of the shaft 5 in the width direction of the head 3 may be arbitrary, such as on a first end, the position near the center, or a second end of the width direction of the head 3 , the position on the front surface, the position on the back surface, and the intermediate position between the front and back surfaces of the head 3 .
  • the golf club 1 having the hosel 4 and the head 3 can be provided with the pickup 230 , the amplifier unit 231 , and the speaker 232 attached to the back surface of the hosel.
  • the golf club 1 having the hosel 4 and the head 3 may be configured such that the hosel hollow portion 203 of the hosel 4 is communicated with the head hollow portion 202 of the head 3 , the speaker 232 is installed inside the hosel hollow portion 203 , and the hosel hollow portion 203 is used as a speaker box to emit the impact sound output from the speaker 232 through the opening 203 A.
  • the golf clubs 1 of FIGS. 65 D and 65 E may be configured such that electric sound based on an electric signal detected by the pickup 230 is output from an electronic sound source.
  • the tone of the electronic sound is, for example, a tone of an electronic drum. That is, an electronic drum may be attached to the golf club 1 .
  • a radio, a smartphone, or the like can be detachably attached to the golf club 1 .
  • the golf club 1 can be configured as an assembled golf club, i.e., a so-called golf club of plastic model type, formed by combining parts) of which parts such as the diaphragm member 200 , a striking surface (face), a weight, a balance, an insert, a hosel, and a sub-diaphragm member 201 with respect to the head 3 can be freely selected by the user and assembled.
  • the insert may be formed integrally with the diaphragm member 200 , or may be separate from the diaphragm member 200 , for example.
  • the head 3 may be formed integrally with or may be separate from the impact surface.
  • the striking surface 2 may be formed integrally with or may be separate from the diaphragm member 200 .
  • the golf clubs 1 of FIGS. 69 A and 69 B each detachably attach a weight 3 W to the back surface of the head 3 formed into a frame shape.
  • the golf club 1 of FIG. 69 A is one in which the weights 3 W are detachably attached to the both sides of a back surface of the head 3 .
  • the golf club 1 of FIG. 69 B is one in which, on the back side of the head 3 , the weight 3 W extending in a planar shape rearward from the back surface is detachably attached.
  • the size, the shape, and the number of the weights 3 W are not limited to those described above, and may be arbitrary. If a diaphragm member 200 is provided, the number of the diaphragm members 200 may be one or more. When multiple diaphragm members 200 are provided, diaphragm member 200 in various shapes can be freely combined.
  • the shapes, the sizes, and the thicknesses of the diaphragm member 200 are not limited to those described above, and may be arbitrary.
  • FIGS. 70 A to 70 F illustrates modifications of a structure in which the diaphragm member 200 is integrated with the shaft 5 .
  • the golf club 1 shown in FIG. 70 A is different from the golf club 1 shown in FIG. 63 B in the points that the cover member 200 Z is not provided and the upper edge of the diaphragm member 200 is formed to be flush with the upper surface of the head 3 , but is common in the remaining points with that of FIG. 63 B .
  • the golf club 1 shown in FIG. 70 B is different from the golf club 1 shown in FIG. 63 B in the points that the plate member 200 Y is not provided and the diaphragm member 200 is provided so as not form spaces in the width direction with the frame-shaped head 3 , but is common in the remaining points with that of FIG. 63 B .
  • the golf club 1 of FIG. 70 C is configured such that the diaphragm member 200 integrated with the shaft 5 is attached to the hosel 4 .
  • the golf club 1 of FIG. 70 D is configured such that the diaphragm member 200 integrated with the shaft 5 is attached to both the head 3 and the hosel 4 .
  • the golf clubs 1 of FIGS. 70 D and 70 E is structured such that the diaphragm member 200 with an upper portion the outline of which is formed into a semi-circular when seen from the front is integrated with the shaft 5 and attached to the head 3 .
  • the upper portion of the diaphragm member 200 protrudes upward more highly than the upper portion of the head 3 .
  • the upper portion of diaphragm member 200 does not protrude from the upper portion of the head 3 , and the circumference (upper portion, lower portion, and both sides) of the diaphragm member 200 is surrounded by the frame-shaped head 3 .
  • the diaphragm member 200 may have any shape (e.g., outline, thickness).
  • the diaphragm member 200 may be any of a thin plate having a small thickness, a plate having a relatively large thickness, or a film-like member having a very small thickness.
  • the material used for the diaphragm member 200 is not particularly limited.
  • a material capable of emphasizing the impact vibration and the impact sound may be appropriately selected.
  • the material include various metals such as steel, alloys, pure gold, rhodium, and copper; pottery; ceramics; synthetic resin such as plastic and urethane, and synthetic rubber; natural rubber (natural resin and rubber); wood; natural fiber (gut (bovine and ovine intestine); synthetic fiber (nylon fiber and polyester fiber); leather; Japanese paper; polyacetal; PET; glass; aluminum fiber; chemical fiber; resin; polypropylene; aluminum; copper; nanocellulose; paper; and polyester.
  • the diaphragm member 200 may also be coated to emphasize the impact vibration and the impact sound.
  • the diaphragm member 200 is not limited to one formed of a single material, and may be formed by combining multiple materials including various materials exemplified above.
  • the diaphragm member 200 is not limited to being formed of a single plate-like member, and may be formed into a planar (membrane-like) shape by combining (knitting) a rod or a string members, for example.
  • the golf club 1 of FIG. 71 A is a modification of the golf club 1 of FIG. 63 C that forms the diaphragm member 200 in the circular form and integrated with the shaft 5 , and is different from that of FIG. 63 C in the point that the diaphragm member 200 is attached to the hosel 4 .
  • This alternative can adjust the installing angle of the diaphragm member 200 to the hosel 4 .
  • a fixing mechanism (locking mechanism) is provided which fixes, after the installing angle of the diaphragm member 200 to the hosel 4 is adjusted, the diaphragm member 200 at the adjusted angle.
  • FIG. 71 B which is a modification of FIG. 70 A , is different in that the head 3 has, as the striking surface 2 , a wall surface that closes the front surface, and the diaphragm member 200 is attached to the back side of the striking surface 2 , but is common in the remaining points with that of FIG. 70 A .
  • the attachment and detachment of the diaphragm member 200 to and from the head 3 can be accomplished by inserting the diaphragm member 200 from the above the head 3 (like replacing of a cassette tape).
  • the golf club 1 of FIG. 71 C is different from that of FIG. 71 B in the point that diaphragm member 200 is incorporated in the head 3 .
  • the connection between the diaphragm member 200 and the shaft 5 may be incorporated in the head 3 and the diaphragm member 200 may be exposed to the front side to serve as the striking surface.
  • FIGS. 72 A and 72 B are modifications of FIGS. 59 B and 59 D , and have structures in which a horn-shaped or dome-shaped piping route 206 are hollowed in the head 3 .
  • the shapes of the head 3 , the hosel 4 , and the shaft 5 may be any well-known shapes and may be combined arbitrary.
  • the golf club 1 according to each of the above various embodiments and modifications is not limited to one that connects the shaft 5 to the head 3 in a straight-line shape shown in FIGS. 40 A and 43 A , and may alternatively one that connects the head 3 to the crank-shaped shaft 5 shown in FIGS. 40 B and 43 B , or one that connects the shaft 5 to the head via the crank-shaped shown in FIGS. 40 C and 43 B .
  • the bent direction of the crank-shaped shaft 5 or hosel 4 is not limited to the bent direction toward the front side as illustrated in FIGS. 40 B, 40 C, 43 B and 43 C , and may alternatively be bent toward one of the width directions, for example, as illustrated in FIGS. 73 A, 73 B, 74 A, and 74 B .
  • a golf club comprising:
  • the golf club according to appendix 1 further comprising a hosel that connects the first end portion of the shaft to the head, wherein the hosel is integrally formed with the head and the shaft in an unreplaceable state.
  • Appendix 8 The golf club according to one of appendix 2 and appendixes 3-7 depending on at least appendix 2, further comprising a fin or a plate-shaped member between the head and the hosel.
  • the golf club according to appendix 8 further comprising an illuminating member arranged in a planar shape or a chain shape on a top surface of the fin or the plate-shaped member.
  • the golf club according to appendix 10 further comprising an illuminating member arranged in a planar shape or a chain shape on a top surface of the fin.
  • the electric indicator member is a liquid crystal display that displays at least one of a hitting direction of the golf ball and impact data when the golf ball is hit on the striking surface in response to an instruction from an external entity.
  • the installing member is formed of one of a wire, a string, a rod member, and a linear elastic member.
  • the installing member is formed in a membrane shape that is expanded in a direction intersecting an extending direction of the grip.
  • the vibration transmitting member comprises a mass member that amplifies the vibration.
  • a golf club comprising:
  • the surface vibration member comprises a membrane member pasted onto the striking surface.
  • the membrane member comprises at least one of a metal plate, a resin plate, a rubber film, and a leather film.
  • a golf club comprising:
  • a golf club comprising:
  • the golf club according to appendix 37 or 38 wherein further comprising an illuminating member arranged in a planar shape or a chain shape on a top surface of the fin or the plate-shaped member.
  • the golf club according to appendix 40 further comprising an illuminating member arranged in a planar shape or a chain shape on a top surface of the fin.
  • Appendix 42 The golf club according to according to any one of appendixes 26-41, further comprising an electric indicator member provided on an upper surface of the head.
  • the electric indicator member is a liquid crystal display that displays at least one of a hitting direction of the golf ball and impact data when the golf ball is hit on the striking surface in response to an instruction from an external entity.
  • a golf club comprising:
  • a golf club insert detachably provided on a striking surface against a golf ball in a golf club, the golf club comprising a shaft, a head being provided at a first end portion of the shaft and having the striking surface, and a grip being provided at a second end portion of the shaft, the insert comprising
  • Appendix 54 The golf club insert according to any one of appendixes 49-53, wherein the surface vibration member is formed as a vibration member having a gong structure provided to the head by means of a hang structure.
  • Appendix 72 The golf club according to any one of appendixes 55-67 and 71 depending on appendix 2, wherein
  • Appendix 84 The golf club according to appendix 2 or any one of appendixes 3-81 at least depending on appendix 2, wherein
  • a golf club comprising:
  • hosel that connects a first end portion of the shaft to the head
  • a grip being provided at a second end portion of the shaft and being gripped by a user, wherein
  • a golf club comprising:
  • a grip being provided at a second end portion side of the shaft and being gripped by a user
  • a golf club comprising:
  • Appendix 100 The golf club according to one of appendixes 95-99, further comprising a fin or a plate-shaped member between the head and the hosel.
  • the golf club according to appendix 100 further comprising an illuminating member arranged in a planar shape or a chain shape on a top surface of the fin or the plate-shaped member.
  • the golf club according to appendix 102 further comprising an illuminating member arranged in a planar shape or a chain shape on a top surface of the fin.
  • the electric indicator member is a liquid crystal display that displays at least one of a hitting direction of the golf ball and impact data when the golf ball is hit on the striking surface in response to an instruction from an external entity.
  • a golf club comprising:
  • a golf club comprising:
  • the golf club according to appendix 116 further comprising a drive source that moves the weight member, wherein
  • a golf club comprising:
  • a golf club comprising:
  • a golf club comprising:
  • the golf club according to appendix 130 further comprising an illuminating member arranged in a planar shape or a chain shape on a top surface of the fin.
  • Appendix 132 The golf club according to according to any one of appendixes 118-131, further comprising an electric indicator member provided on an upper surface of the head.
  • the electric indicator member is a liquid crystal display that displays at least one of a hitting direction of the golf ball and impact data when the golf ball is hit on the striking surface in response to an instruction from an external entity.
  • a golf club comprising:
  • the golf club according to appendix 136 wherein the shaft comprises a shaft hollow portion formed in a hollow, and the vibration emphasizing member is provided on an inner circumference surface of the shaft hollow portion.
  • a golf club insert detachably provided on a striking surface against a golf ball in a golf club, the golf club comprising a shaft, a head being provided at a first end portion of the shaft and having the striking surface, and a grip being provided at a second end portion of the shaft, the insert comprising
  • a golf club comprising:
  • a golf club comprising:
  • a golf club comprising:
  • Appendix 170 The golf club according to any one of appendixes 95-169, wherein
  • Appendix 171 The golf club according to any one of appendixes 95-168, wherein
  • a golf club comprising:
  • a golf club comprising:
  • a golf club comprising:
  • the golf club according to appendix 196 further comprising a fin or a plate-shaped member between the head and the hosel, wherein
  • a golf club comprising:
  • the golf club according to appendix 207 wherein further comprising an illuminating member arranged in a planar shape or a chain shape on a top surface of the fin or the plate-shaped member.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Wood Science & Technology (AREA)
  • Golf Clubs (AREA)
US18/804,423 2022-02-21 2024-08-14 Golf club and golf club insert Pending US20240399222A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022024435A JP7339699B1 (ja) 2022-02-21 2022-02-21 ゴルフクラブ及びゴルフクラブ用インサート
JP2022-024435 2022-02-21
PCT/JP2023/006319 WO2023157983A1 (ja) 2022-02-21 2023-02-21 ゴルフクラブ及びゴルフクラブ用インサート

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/006319 Continuation WO2023157983A1 (ja) 2022-02-21 2023-02-21 ゴルフクラブ及びゴルフクラブ用インサート

Publications (1)

Publication Number Publication Date
US20240399222A1 true US20240399222A1 (en) 2024-12-05

Family

ID=87578750

Family Applications (1)

Application Number Title Priority Date Filing Date
US18/804,423 Pending US20240399222A1 (en) 2022-02-21 2024-08-14 Golf club and golf club insert

Country Status (3)

Country Link
US (1) US20240399222A1 (https=)
JP (4) JP7339699B1 (https=)
WO (1) WO2023157983A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7751315B2 (ja) 2023-04-06 2025-10-08 有限会社渥美文次商店 ゴルフクラブ及びゴルフクラブ用インサート

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7837111B2 (ja) * 2023-08-24 2026-03-30 有限会社渥美文次商店 ゴルフクラブ、ゴルフ練習システム、ゴルフクラブ用インサート及び携帯移動端末
WO2026074706A1 (ja) * 2024-10-04 2026-04-09 有限会社渥美不動産アンドコーポレーション ゴルフクラブ

Family Cites Families (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4825869U (https=) * 1971-08-02 1973-03-28
JPS51154263U (https=) * 1975-05-31 1976-12-09
US4265451A (en) * 1979-05-03 1981-05-05 Bernhardt Floyd V Golf putter
US4324404A (en) * 1980-05-19 1982-04-13 Walter Dian, Inc. Golf putter
JPS60153168U (ja) * 1984-03-18 1985-10-12 木山　昌俊 ゴルフクラブヘツド
JPS60166370U (ja) * 1984-04-13 1985-11-05 マルマンゴルフ株式会社 ゴルフ用パタ−
JPS61193680A (ja) * 1985-02-25 1986-08-28 マルマンゴルフ株式会社 ゴルフクラブ用ヘツド
JPS6261261U (https=) * 1985-10-08 1987-04-16
JPH04136252U (ja) * 1991-06-13 1992-12-18 藤倉ゴム工業株式会社 ゴルフクラブシヤフト
JP2576341Y2 (ja) 1992-03-10 1998-07-09 横浜ゴム株式会社 ゴルフクラブヘッド
JPH06182013A (ja) * 1992-12-22 1994-07-05 Tanaka Denshi:Kk ゴルフ練習用のパターアタッチメント
US5505453A (en) * 1994-07-20 1996-04-09 Mack; Thomas E. Tunable golf club head and method of making
US5441269A (en) * 1994-08-22 1995-08-15 Henwood; Richard Putting stroke training device
JPH08131599A (ja) * 1994-11-04 1996-05-28 Toyoura Kogyo Kk パター
JP3010891U (ja) 1994-11-07 1995-05-09 康臣 北田 パター
US5505448A (en) * 1994-11-29 1996-04-09 Bpa Fabrication, Inc. Golf clubhead
US5683308A (en) * 1996-02-28 1997-11-04 Monette; David G. Golf club
JP2000511069A (ja) 1996-05-31 2000-08-29 タイディメイク リミテッド ゴルフクラブ
JPH11169491A (ja) * 1997-12-16 1999-06-29 Mitsubishi Rayon Co Ltd ゴルフクラブヘッド
JPH11347161A (ja) * 1998-06-05 1999-12-21 Bridgestone Sports Co Ltd アイアンゴルフクラブヘッド
JP4107525B2 (ja) * 1998-06-25 2008-06-25 ブリヂストンスポーツ株式会社 ウッドクラブヘッド
JP4287957B2 (ja) 1999-09-27 2009-07-01 ブリヂストンスポーツ株式会社 パター
GB2361873B (en) * 2000-05-03 2004-02-18 Douglas Boyd Buchanan Weighted grip
JP2002052102A (ja) * 2000-08-08 2002-02-19 Serika Creations:Kk ゴルフ用パター
US6561918B2 (en) 2001-06-27 2003-05-13 Eben Corporation Golf collimator and golf club therewith
JP2003230646A (ja) 2002-02-08 2003-08-19 Toshiharu Yamada パークゴルフ用ゴルフクラブ
US7331876B2 (en) 2002-02-28 2008-02-19 Lon Klein Integrated putter system
JP2003305143A (ja) 2002-04-15 2003-10-28 Tsugio Daito ゴルフパター
JP2004121770A (ja) 2002-09-30 2004-04-22 Aui:Kk ハンマー型ゴルフパット（ニックネームｐｉｎｏｋｉｏ）
JP3095154U (ja) * 2002-11-12 2003-07-25 ▲ゆい▼宏 林 ゴルフクラブ
KR200315040Y1 (ko) * 2003-03-07 2003-06-02 (주)트리매드랩 퍼터에서의 충격량 검출장치
JP4243717B2 (ja) * 2003-06-05 2009-03-25 株式会社Ｍｕｇｅｎ ゴルフクラブ
JP2005161036A (ja) * 2003-11-12 2005-06-23 Yokohama Rubber Co Ltd:The ゴルフクラブ及びゴルフクラブの価格決定方法
US7014566B1 (en) * 2004-04-19 2006-03-21 Michael Norvise Golf putter
KR20050116237A (ko) * 2004-06-07 2005-12-12 이재영 교정기능을 가지는 골프클럽
JP2006026118A (ja) * 2004-07-16 2006-02-02 Touno:Kk ゴルフパター
KR20060018725A (ko) * 2004-08-25 2006-03-02 김시영 임팩트 포인트를 감지하는 골프채
KR100714421B1 (ko) * 2005-03-02 2007-05-04 최인환 핏팅조정이 가능한 퍼터
JP2006239132A (ja) * 2005-03-03 2006-09-14 Yokohama Rubber Co Ltd:The ゴルフクラブヘッドの打音評価方法、この方法をコンピュータに実行させるプログラムおよびゴルフクラブヘッドの打音評価システム
JP2006326273A (ja) 2005-04-26 2006-12-07 Ichiro Tadokoro 練習用ゴルフクラブ及び練習器具
JP5345763B2 (ja) 2006-04-26 2013-11-20 安之 金森 ゴルフパター
JP4951161B2 (ja) 2006-10-25 2012-06-13 明佳 山路 ゴルフ用パター
US7641568B2 (en) * 2006-11-30 2010-01-05 Taylor Made Golf Company, Inc. Golf club head having ribs
US7553240B2 (en) 2007-01-10 2009-06-30 Acushnet Company Golf club heads with interchangeable hosels
US7635310B2 (en) 2007-11-16 2009-12-22 Keough David B Weighted golf club grips and shafts
KR20100037988A (ko) * 2008-10-02 2010-04-12 김형훈 퍼팅 감각 연습용 퍼터
US20160129332A1 (en) 2008-10-09 2016-05-12 Golf Impact, Llc Inductive sensing system for sports performance improvement
US7749104B2 (en) * 2008-12-08 2010-07-06 Sri Sports Limited Golf club head
JP2010158491A (ja) 2009-01-12 2010-07-22 Shinai Shoji Kk スティック
KR101079319B1 (ko) * 2009-11-24 2011-11-04 강현철 골프클럽의 그립 압력 및 기울기 측정장치
US9849349B1 (en) * 2016-06-24 2017-12-26 Callaway Golf Company Iron-type golf club head with lightweight hosel
JP5814677B2 (ja) 2010-09-17 2015-11-17 ダンロップスポーツ株式会社 ゴルフクラブ
JP5716592B2 (ja) 2011-07-26 2015-05-13 ブリヂストンスポーツ株式会社 ゴルフクラブ及びその特性調節方法
US8608586B2 (en) 2011-09-01 2013-12-17 Richard E. Parente Golf putter
JP2013094640A (ja) * 2011-10-28 2013-05-20 Masataka Kawasaki 電光部付練習用ゴルフクラブ
US10232232B2 (en) * 2011-10-31 2019-03-19 Karsten Manufacturing Corporation Golf club heads with turbulators and methods to manufacture golf club heads with turbulators
US9072948B2 (en) 2011-11-30 2015-07-07 Nike, Inc. Golf club head or other ball striking device utilizing energy transfer
US20130178307A1 (en) 2012-01-09 2013-07-11 W Cubed, LLC Golf Putter Systems
JP5941752B2 (ja) * 2012-05-22 2016-06-29 ブリヂストンスポーツ株式会社 解析システムおよび解析方法
JP2014008290A (ja) * 2012-06-29 2014-01-20 Way Kikaku Jimusho Co Ltd ゴルフクラブ、ゴルフクラブのシャフトの取付角度の設定器及び設定方法、ゴルフクラブの角度調節部の曲げ加工器
JP6010523B2 (ja) 2012-12-20 2016-10-19 アクシュネット カンパニーＡｃｕｓｈｎｅｔ Ｃｏｍｐａｎｙ 交換可能なシャフトシステム
JP6392009B2 (ja) 2014-06-30 2018-09-19 住友ゴム工業株式会社 付属品付きゴルフクラブ
JP6149835B2 (ja) 2014-09-29 2017-06-21 ヤマハ株式会社 ゴルフクラブ
CN107949427B (zh) 2015-05-28 2023-11-07 卡斯顿制造有限公司 用于高尔夫球杆的可调节长度的杆身和可调节质量块
JP3208502U (ja) 2016-05-25 2017-01-26 顕也 沼口 パターヘッド
EP3837027A4 (en) 2018-08-13 2022-04-27 Karsten Manufacturing Corporation Adjustable length shaft and an adjustable mass for a golf club
JP6844634B2 (ja) * 2019-02-21 2021-03-17 株式会社ニコン プログラム及び電子機器
KR20210054255A (ko) * 2019-11-05 2021-05-13 박재현 퍼팅 자세교정 퍼터
US11358035B2 (en) 2020-03-04 2022-06-14 Andrew T. Barber Balance point alignment for golf shafts and golf clubs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7751315B2 (ja) 2023-04-06 2025-10-08 有限会社渥美文次商店 ゴルフクラブ及びゴルフクラブ用インサート

Also Published As

Publication number Publication date
JP7339699B1 (ja) 2023-09-06
JP2023144092A (ja) 2023-10-06
WO2023157983A1 (ja) 2023-08-24
JP7598680B2 (ja) 2024-12-12
JP7475093B2 (ja) 2024-04-26
JP2024071786A (ja) 2024-05-24
JP2025015851A (ja) 2025-01-30
JP2023127593A (ja) 2023-09-14

Similar Documents

Publication Publication Date Title
US20240399222A1 (en) Golf club and golf club insert
JP5560304B2 (ja) 楽音装置並びに楽音装置の生産方法及び改造方法
US20140348349A1 (en) Speaker device
CN107690108B (zh) 拾音装置及音响处理装置
JP5122193B2 (ja) 楽音装置並びに楽音装置の生産方法及び改造方法
WO2023047787A1 (ja) 楽器
JP2007249140A (ja) 電子打楽器
JP2004258443A (ja) 管楽器の演奏用アクチュエータと演奏装置と演奏方法
JP3788382B2 (ja) 弦楽器
JP2009003273A (ja) 電子鍵盤楽器
JP6729485B2 (ja) 打楽器
US20060150890A1 (en) Horn assembly
JP4888149B2 (ja) 打楽器
JP3246211U (ja) 楽器
JP2024149338A5 (ja) ゴルフクラブ及びゴルフクラブ用インサート
JP2008026350A (ja) 電子打楽器
US20250095619A1 (en) Control method, control device and musical instrument
JP2024149338A (ja) ゴルフクラブ、脱着ユニット、ゴルフ練習システム、ゴルフクラブ用インサート及び携帯移動端末
WO2025041347A1 (ja) ゴルフクラブ、ゴルフ練習システム、ゴルフクラブ用インサート及び携帯移動端末
JPWO2025041347A5 (https=)
JP5668437B2 (ja) 楽器
JP2002156964A (ja) 打楽器用打面体
US10410612B1 (en) Handheld guira assembly
JP2001022346A (ja) ピアノ
NANOTUBES REVIEWS OF ACOUSTICAL PATENTS

Legal Events

Date Code Title Description
AS Assignment

Owner name: YUGEN KAISHA ATSUMI BUNJI SHOTEN, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ATSUMI, KAZUYA;REEL/FRAME:068284/0407

Effective date: 20240627

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION