GOLF SWING ANALYSIS METHOD

• US 20100323805A1
• Filed: 04/14/2010
• Published: 12/23/2010
• Est. Priority Date: 06/17/2009
• Status: Active Grant

• Current Assignee: Bycen Co., Ltd., Sumitomo Rubber Industries Limited
• Original Assignee: Dunlop Sports Co. Ltd. (Sumitomo Rubber Industries Limited)
• Inventors: Noriyama, Keiji, Chida, Yasushi, KAMINO, Kazuya
• Granted Patent: US 8,523,696 B2
• Time in Patent Office: Days
• US Class Current: 473/221
• CPC Class Codes: A63B 2024/0009 Computerised real time comparison with previous movements or motion sequences of the user
• CPC Class Codes: A63B 2024/0068 Comparison to target or threshold, previous performance or not real time comparison to other individuals
• CPC Class Codes: A63B 2220/40 Acceleration
• CPC Class Codes: A63B 2220/836 Sensors arranged on the body of the user
• CPC Class Codes: A63B 2225/50 Wireless data transmission, e.g. by radio transmitters or telemetry
• CPC Class Codes: A63B 24/0006 Computerised comparison for qualitative assessment of motion sequences or the course of a movement
• CPC Class Codes: A63B 69/3608 Attachments on the body, e.g. for measuring, aligning, restraining A63B69/0059, A63B69/3673 take precedence
• CPC Class Codes: A63B 69/3614 using electro-magnetic, magnetic or ultrasonic radiation emitted, reflected or interrupted by the golf club

Abstract

A swing analysis method of the present invention includes steps of: preparing a radio type acceleration measuring device 4 capable of measuring respective accelerations in three axis directions; mounting the acceleration measuring device 4 to a golf player'"'"'s body t1; receiving measured data from the acceleration measuring device 4 during a swing through radio communication; and analyzing a golf swing based on the acceleration data. Preferably, the acceleration measuring device is attached to each of two or more portions of the tester t1. Preferably, an attached position of the acceleration measuring device is any part selected from the group consisting of a head, a neck, a shoulder, a back, a waist and a wrist. Preferably, a weight of the acceleration measuring device is equal to or more than 10 g.

Claims

1. A swing analysis method comprising steps of:

preparing a radio type acceleration measuring device capable of measuring respective accelerations in three axis directions of an x-axis direction, a y-axis direction, and a z-axis direction;

mounting the acceleration measuring device to a golf player'"'"'s body;

receiving measured data from the acceleration measuring device during a swing through radio communication; and

analyzing a golf swing based on the measured data.

2. The swing analysis method according to claim 1, wherein the acceleration measuring device is attached to each of two or more portions of the body.

3. The swing analysis method according to claim 2, wherein an attached position of the acceleration measuring device is a head, a neck, a shoulder, a back, a waist or a wrist.

4. The swing analysis method according to claim 1, wherein a weight of the acceleration measuring device is equal to or less than 10 g.

5. The swing analysis method according to claim 1, wherein a trigger signal is generated at a time point during the swing, and the acceleration data is associated with a swing motion in time series based on the trigger signal.

6. The swing analysis method according to claim 5, wherein the time point at which the trigger signal is generated is a top-of-swing or an impact.

7. The swing analysis method according to claim 1, wherein a direction connecting an impact point to a target point and being parallel to a ground is an X-axis direction;

a vertical direction is a Y-axis direction;

a direction being perpendicular to the X-axis direction and the Y-axis direction is a Z-axis direction; and

the acceleration data has a component of the Z-axis direction.

8. The swing analysis method according to claim 1, wherein the acceleration data is time-series data of acceleration Ax in the x-axis direction, acceleration Ay in the y-axis direction, or acceleration Az in the z-axis direction;

a maximum value and a minimum value in a specific section during the swing are obtained for a value calculated from the acceleration Ax, the acceleration Ay, the acceleration Az, or at least one of the accelerations; and

a difference between the maximum value and the minimum value is taken as an indication of swing analysis.

9. The swing analysis method according to claim 1, wherein the acceleration data is time-series data of acceleration Ax in the x-axis direction, acceleration Ay in the y-axis direction, or acceleration Az in the z-axis direction;

a maximum value and a minimum value in a specific section during the swing are obtained for a value calculated from the acceleration Ax, the acceleration Ay, the acceleration Az, or at least one of the accelerations; and

a time difference Td1 between a time of the maximum value and a time of the minimum value is taken as an indication of swing analysis.

10. The swing analysis method according to claim 1, wherein a same golf player swings a same golf club plural times;

a plurality of graph lines are obtained based on data of the plurality of swings; and

an area s1 surrounded by the plurality of graph lines is taken as an indication of swing analysis.

11. A swing analysis method comprising a step of determining repeatability of a swing based on the swing analysis method according to claim 1.

12. A golf club selection method comprising a step of selecting a golf club suitable for a golf player performing the swing based on the swing analysis method according to claim 1.