JP2006116049A - Golf club head - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a golf club head permitting safe and easy measurement of the head speed of a golf club by a head speed measuring device using a magnetic sensor without impairing the hitting performance or outside appearance of the golf club head. <P>SOLUTION: The golf club head 10 comprises a plate member 70 with a magnetic generating source, and a golf club head body 60 with a recess 80 formed on the surface. The plate member 70 is pasted to the recess 80. The surface of the golf club head body 60 around the recess 80 and the surface of the plate member 70 are flushed, and the contour of the recess 80 is nearly the same as the plate member 70. The plate member has identification information. The position of the recess 80 in the golf club head body 60 is on the toe side of the golf club head body 60. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a golf club head used for a golf club.

  Conventionally, it has been known that the flight distance of a golf ball substantially correlates with the head speed of the golf club. Therefore, by measuring the head speed of the golf club, the flight distance of the golf ball can be estimated and estimated. Widely done.

  Various head speed measuring devices for measuring the head speed of this golf club have been proposed. In particular, a head speed measuring device using a magnetic sensor can be manufactured at a lower cost than other head speed measuring devices. In addition, since the measurement method is simple and relatively accurate, it is widely marketed and installed in golf courses and golf equipment stores. In recent years, portable measuring devices that can be used by individuals are also known.

As an apparatus for measuring the head speed of a golf club using this magnetic sensor, there is a golf club head speed measuring apparatus disclosed by the applicant's patent application. (Patent Document 1)
This measuring device includes, for example, a plate-shaped magnet attached to the toe side surface of a golf club head, a magnetic sensor (sensor coil) that measures the level of induced power when the magnet passes, and a control circuit (arithmetic processing unit, When a golf club with a magnet attached to the toe side surface of the golf club head is swung in the vicinity of the measuring device, the sticking unit is attached to the toe side surface of the golf club head. The sensor coil detects the level of the induced power when the magnet passes, and the head speed of the golf club head is displayed on the display control unit via the arithmetic processing unit.

Japanese Patent No. 3073828

  When measuring the head speed of a golf club with the head speed measuring device provided with the magnetic sensor described above, a magnet is attached to the toe side surface of the golf club head, for example, with double-sided tape before the measurement. The sensor coil detects the level of the induced power when the magnet attached to the toe side surface of the golf club head swings in the vicinity of the measuring device and passes in the vicinity of the measuring device, and this is detected via an arithmetic processing unit. Thus, the head speed of the golf club is displayed on the display control unit. Then, after the measurement is completed, the magnet is peeled off from the toe side surface of the golf club head and used for playing golf. Thus, the magnet must be attached to the toe side surface of the golf club head each time it is measured, and then peeled off after the measurement.

  However, if the magnet is repeatedly attached to the toe side surface of the golf club head and peeled off every time the measurement is performed, the adhesive force of the double-sided tape attached to the magnet is reduced, and when swinging for measurement, The magnet may peel off from the toe side surface of the golf club head and scatter due to centrifugal force or impact force when the golf ball is impacted.

  In addition, when renewing a double-sided tape with reduced adhesive strength, it is necessary to replace the double-sided tape according to the shape of the magnet after removing the double-sided adhesive tape with reduced adhesive strength. It will take. For this reason, a new magnet with a new double-sided tape attached is actually used to measure the head speed, and the magnet is essentially a consumable item.

  Further, when the magnet is attached to the golf club head, the center of gravity of the original golf club head changes, and the characteristics of the golf club head when playing golf change. For this reason, in the head speed measurement performed using a golf club with a magnet attached thereto, the golf swing is different from the original golf swing, and there is a problem that the head speed of the original golf swing cannot be measured.

  In addition, since the magnet attached to the toe side surface of the golf club head protrudes from the toe side surface, when the golf club is swung, the air resistance of the golf club head is increased and the swing is hindered.

  In addition to the impact performance of flying golf balls, the design and appearance of the golf club head are also emphasized. However, there is also a problem that after the magnet is peeled off, the double-sided tape adheres to the golf club head and becomes unsightly.

  Accordingly, in order to solve the above problems, the present invention provides a golf club head capable of measuring the head speed of a golf club safely and easily without impairing the appearance of the golf club head in terms of impact performance and appearance. The purpose is to do.

  In order to achieve the above object, the present invention comprises a member having a magnetic source and a golf club head body having a recess formed on the surface thereof, and the recess formed in the golf club head body includes: Provided is a golf club head characterized in that a member having the magnetic source is provided and integrated. The concave portion includes a through hole as well as a concave stepped groove having a groove bottom.

  Here, the member having the magnetic generation source is a plate member, and the plate member is preferably attached to the recess. In this case, it is preferable that the surface of the golf club head main body around the recess and the surface of the member having the magnetic source attached to the recess are substantially flush. Moreover, it is preferable that the member having the magnetic generation source is a plate member. In this case, it is preferable that the contour shape of the plate member is substantially the same as the contour shape of the recess.

In addition, it is preferable that the member having the magnetic generation source has identification information.
Further, the golf club head is a hollow golf club head, the concave portion is a through-hole penetrating an outer shell of the hollow golf club head, and the member having the magnetic source is attached to a protective sheet, It is also preferable that this protective sheet is attached to the circumferential golf club head of the through hole.
Further, the member may incorporate a transponder or an IC card that uses an external radio wave as a drive source and transmits information held by itself as a response signal.

  The position of the recess in the golf club head body is preferably on the toe side of the golf club head body.

  According to the present invention, since the member having the magnetic generation source is provided in the concave portion formed on the surface of the golf club head main body, the golf club having this golf club head has no magnet attached for measuring the head speed. Also, the head speed can be measured by swinging in the vicinity of a head speed measuring device using a magnetic sensor. Furthermore, since it becomes unnecessary to attach and detach a magnet, the position of the center of gravity of the golf club head does not change as in the prior art, so that the head speed can be measured in the same state as used for golf play.

Further, the surface of the golf club head main body surrounding the recess and the surface of the member having the magnetic generation source adhered to the recess are substantially flush, or the contour shape of the member having the magnetic generation source is made Since the shape is substantially the same as the contour shape, the member having the magnetism generation source is positioned along the contour of the recess, so that no extra air resistance is generated when the golf club is swung.
In addition, identification information such as brand design is marked on the plate member, and identification with other golf clubs can be facilitated.

  Hereinafter, the golf club head of the present invention will be described in detail based on the preferred embodiments shown in the accompanying drawings.

  FIGS. 1A and 1B are views showing an outline of an embodiment of a golf club having a golf club head of the present invention. FIG. 1A is a view from the toe side of the golf club head. (B) is a view of the golf club 10 as seen from the direction of the face surface of the golf club head.

  A golf club 10 shown in FIG. 1 includes a golf club shaft 20, a golf club head 30, and a socket 40.

  In FIG. 1, the golf club shaft 20 has a grip (not shown) attached to the upper end portion and a socket 40 incorporated in the lower end portion, and then into a shaft hole (not shown) of the hosel 50 of the golf club head 30. Inserted and fixed with adhesive. The socket 40 is formed of a cylindrical member made of a resin material that is fitted in a connecting portion between the golf club shaft 20 and the hosel 50, protects a connection portion between the golf club shaft 20 and the hosel 50, and decorates the golf club 10. Is provided to do. In the present invention, the socket 40 may not be particularly provided.

The golf club head 30 includes a golf club head main body 60 and a plate member 70, and the plate member 70 having a magnetic source is attached to the recess 80 formed on the toe side surface of the golf club head main body 60 with an adhesive. It is worn and integrated with the golf club head main body 60.
The golf club head main body 60 refers to a portion constituted by a sole portion 60a, a crown portion 60b, a side portion 60c, a face portion 60d, and a hosel 50.

2 (a) and 2 (b) are diagrams showing an outline of the golf club head main body 60. FIG. 2 (a) is from the toe side, and FIG. 2 (b) is a direction facing the face surface of the face portion 60d. FIG. 5 is a view of the golf club head main body 60, and shows that a recess 80, which is a stepped groove with a step, is formed on the toe-side surface of the golf club head main body 60.
The toe side surface where the recess 80 is formed is sandwiched between a sole portion 60a facing the ground and a curved crown portion 60b facing the sole portion 60a when a golf ball is hit with a golf club. This is a part of the surface of the side portion 60c, and is a surface of the side portion 60c that is visible when the golf club head is viewed against a golfer who performs golf swing.

The plate member 70 is attached to and integrated with the concave portion 80, and the surface of the side portion 60 c around the concave portion 80 surrounding the concave portion 80 and the surface of the plate member 70 are substantially flush with each other. Further, the contour shape of the plate member 70 is formed so as to substantially match the contour shape of the recess 80. For this reason, the plate member 70 is positioned and stuck along the contour shape of the concave portion 80 without any gaps, and the shape of the toe side surface of the golf club head can be made smooth. In addition to suppressing an increase in resistance, the plate member 70 can be made difficult to peel from the recess 80.
The recess 80 has a step surface with respect to the curved surface of the side portion 60c around the recess 80 surrounding the recess 80, and a recess bottom surface 80a is formed. The plate member 70 is bonded to the concave bottom surface 80a with an adhesive and integrated with the golf club head main body 60.
In this embodiment, the surface of the plate member 70 is flush with the surface of the side portion 60c around the recess 80. However, in the present invention, the surface of the plate member 70 is the surface of the side portion 60c around the recess 80. On the other hand, a part or the whole may be protruded or recessed.

  The position of the recess 80 formed in the golf club head main body 60 is not limited to the toe side surface of the golf club head main body 60, and can be measured by the above-described golf club head speed measuring device, and the face hitting the golf ball. The position of the concave portion is not particularly limited as long as it is other than the portion 60d.

FIG. 3 shows a plate member 70 having a magnetic source.
The plate member 70 is formed of a magnet in which ferrite (iron ferrite, cobalt ferrite, manganese ferrite, or the like) is blended with a rubber material, and the magnetic force (maximum energy) that can be sensed by the magnetic sensor with the above-described golf club head speed measuring device. A constant thickness (0.5 to 2 mm) and a constant area (about 5 mm in length and about 30 mm in width) are formed.
The plate member 70 is provided with a brand design as identification information on the surface opposite to the side facing the recess 80, so that it can be easily distinguished from other golf clubs.

In this embodiment, the plate member 70 is formed of a magnet in which ferrite is mixed with a rubber material. However, the magnetic force that can be detected by the magnetic sensor with the above-described golf club head speed measuring device is one of the plate members 70. Other materials may be used as long as the part has them.
Moreover, although the label of a brand design is given to the surface of the board member 70, for example, other identification information, such as a code | symbol, a symbol, a character, a design, may be given.
Further, a transponder or an IC card that transmits information held by itself as a response signal may be built in the plate member 70 using an external radio wave as a drive source. In addition, as information to hold | maintain, various information, such as the manufacture date of a golf club head and a manufacture place, is mention | raise | lifted. The information to be held may be rewritable information.

The plate member 70 having the magnetism generation source does not peel off from the concave portion 80 formed on the toe side surface of the golf club head body 60 even by a centrifugal force when the golf club is swung or an impact force when the golf ball is impacted. Further, it is stuck to the recess 80 with an adhesive. For this reason, the golf club 20 having the golf club head 10 has a magnetic force that can be sensed by the magnetic sensor, so that the head speed can be measured by swinging in the vicinity of the head speed measuring device described above.
In addition, since it is not necessary to stick the magnet before the head speed measurement and peel it off after the measurement, the center of gravity position of the golf club head does not move as in the past, and it is the same golf swing as when playing golf, Head speed can be measured.

  In this embodiment, the adhesive is used as a method for adhering the plate member 70 having a magnetic source to the recess 80. However, the centrifugal force when swinging the golf club or when the golf ball is impacted are used. As long as the plate member 70 can be attached to the recess 80 with sufficient strength to withstand the impact force, it may be attached using an adhesive or a double-sided tape, and the attaching method is not particularly limited. Further, it may be mechanically assembled with screws or the like.

When the golf club head body 60 is a hollow golf club head produced by casting, a small amount of mold sand remains in the golf grab head. You may hear it.
Therefore, as shown in FIGS. 4A and 4B, a structure in which a cutout hole 90 is provided in the center of the above-described recess 80 in a shape in which the outer shape of the plate member 70 is reduced to about a half. . When the plate member 70 coated with adhesive is applied to the entire back surface of the marking surface in the recess 80 provided with the notch hole 90, the notch hole 90 is closed by the plate member 70 and is also attached to the plate member 70. Since the surface of the applied pressure-sensitive adhesive faces the hollow portion of the golf club head, sand in the golf club head sticks to the pressure-sensitive adhesive in the cutout portion 90, and the fine sound can be reduced. 4A is a view of the cutout hole 90 seen from the toe side of the golf club head, and FIG. 4B is a view showing a cross section of the AA portion shown in FIG. 4A. .
In this embodiment, the cutout hole 90 is provided in the center of the recess 80 in a shape that is reduced to about half the outer shape of the plate member 70. However, the plate member 70 is not peeled off from the recess 80, and the hollow interior As long as the sand is a notch hole that can stick to the adhesive, it may be in any position of the recess 80 and may have any shape.

  Further, as shown in FIGS. 5A and 5B, when the golf club head is a hollow golf club head, the recess 80 is a through-hole penetrating the outer shell of the hollow golf club head, and serves as a magnetic source. The plate member 70 is attached to the protective sheet 100, and the protective sheet 100 may be attached to a circumferential golf club head having a through hole. That is, after the plate member 70 having a magnetic source is disposed in the recess 80 that forms the through hole on the toe side surface of the golf club head main body 60, the protective sheet 100 larger than the outer shape of the plate member 70 is covered with the plate member 70. The plate member 70 having a magnetic source can be provided on the toe side of the golf club head body 60 by sticking around the recess 80 of the golf club head body 60 so as to hide. In this case, the label such as the brand design is applied not on the surface of the plate member 70 but on the surface of the protective sheet 100. Further, the protective sheet 100 has such strength and adhesive force that the plate member 70 does not come off from the concave portion 80 even by centrifugal force when swinging the golf club or impact force when impacting the golf ball. 5A is a view of the protective sheet 100 as viewed from the toe side of the golf club head 10, and FIG. 5B is a view showing a cross section of the BB portion shown in FIG. 5A. .

In this embodiment, the golf club head is described as a wood-based golf club head. However, the present invention is not limited to a wood-based golf club head, and may be an iron golf club head.
Further, in this embodiment, the member having the magnetic source is a plate member, but the present invention is not particularly limited to the plate member.
The golf club head of the present invention has been described in detail above. However, the present invention is not limited to the above embodiment, and various improvements and modifications may be made without departing from the spirit of the present invention. It is.

(A) And (b) is a block diagram which shows the outline of one Embodiment of a golf club which has a golf club head of this invention. (A) And (b) is a figure which shows the outline of the golf club head main body shown in FIG. It is a figure which shows the outline of the board member which has a magnetic generation source shown in FIG. (A) And (b) is a figure which shows the outline of the other example of the golf club head main body shown in FIG. (A) And (b) is a block diagram which shows the outline of the other embodiment of the golf club head of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Golf club head 20 Golf club 30 Golf club shaft 40 Socket 50 Hosel 60 Golf club head main body 70 Plate member which has a magnetic source 80 Recess 90 Notch hole 100 Protection sheet

Claims (7)

A member having a magnetic source;
A golf club head main body having a recess formed on the surface,
A golf club head, wherein a member having the magnetic source is provided in and integrated with the recess formed in the golf club head main body.   The golf club head according to claim 1, wherein the member having the magnetic generation source is a plate member, and the plate member is adhered to the recess.   3. The golf club head according to claim 2, wherein a surface of the golf club head main body surrounding the recess and a surface of a member having a magnetic source attached to the recess are substantially flush.   The golf club head according to claim 1, wherein a contour shape of the plate member is substantially the same as a contour shape of the concave portion.   The golf club head according to claim 1, wherein the member having the magnetic generation source has identification information. The golf club head is a hollow golf club head;
The recess is a through hole that penetrates the outer shell of the hollow golf club head,
2. The golf club head according to claim 1, wherein the member having the magnetic generation source is attached to a protective sheet, and the protective sheet is attached to the circumferential golf club head of the through hole. The golf club head according to claim 1, wherein a position of the recess in the golf club head main body is on a toe side of the golf club head main body.

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