System and method for evaluation of dynamics of golf clubs

• US 5,616,832 A
• Filed: 08/14/1995
• Issued: 04/01/1997
• Est. Priority Date: 08/14/1995
• Status: Expired due to Fees

• Current Assignee: George S. Nauck
• Original Assignee: George S. Nauck
• Inventors: Nauck, George S.
• Primary Examiner(s): Dougherty, Elizabeth L.
• Application Number:
  US08/514,869
• Time in Patent Office: 596 Days
• Field of Search: 73/65.03, 73/65.07, 73/65.08, 73/65.09, 73/862.541, 73/862.59, 73/584, 73/587, 273/186.1, 273/186.2, 273/187.4, 273/80 B, 33/508, 473/221, 473/226
• US Class Current: 73/65.03
• CPC Class Codes: A63B 2220/808 Microphones
• CPC Class Codes: A63B 53/00 Golf clubs
• CPC Class Codes: A63B 60/002 Resonance frequency related characteristics
• CPC Class Codes: A63B 60/42 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

Abstract

A system and method for evaluation of dynamics of golf clubs comprising a microphone (23) inserted inside the golf club shaft (18) which detects vibrations as sound waves and transmits signals indicative of the vibration'"'"'s frequencies and amplitudes to a data acquisition system (28) for processing, display (30), and analysis. The apparatus may also be used for measuring natural frequency of flex through use of a rattler (61) or a micro-switch actuator (63).

Claims

1. A method for measuring golf club dynamics and quantifying conditions of potential hazard to a golfer'"'"'s body comprising the steps of:

employing at least one sensing means inside the shaft of a golf club for sensing of golf club dynamics;

employing conducting means for conducting of sensed golf club dynamics to at least one transmitting means;

employing at least one transmitting means for transmission of said sensed golf club dynamics;

employing at least one receiving means for reception of said transmission of said sensed golf club dynamics;

wherein golf club dynamics comprise vibration frequencies and amplitudes present in the shaft.

2. A method as in claim 22 further comprising the steps of:

employing at least one transferring means for transferring of said sensed golf club dynamics to processing means;

employing processing means for processing of said sensed golf club dynamics into human readable indicia.

3. A method as in claim 2 further comprising the steps of:

employing display means for display of said human readable indicia;

employing analysis means for analysis of said human readable indicia.

4. A method as in claim 3 wherein:

said at least one sensing means is at least one microphone.

5. A method as in claim 4 wherein:

said conducting means is physical connection between said at least one microphone and said at least one transmitting means.

6. A method as in claim 5 wherein:

said at least one transmitting means is at least one wireless transmitter;

said at least one reception means is at least one receiver of signals transmitted from said at least one wireless transmitter;

said at least one transferring means is at least one physical connection from said at least one receiver of said signals to said processing means;

said processing means is at least one data acquisition system;

said display means is configured to display output signals of said human readable indicia from said at least one data acquisition system;

said analysis means is software for said analysis of said human readable indicia;

said conditions of potential hazard to a golfer'"'"'s body are golf club dynamics comprising vibration and shock.

7. An apparatus for measuring golf club dynamics and golf club natural frequency of flex comprising:

at least one sensing means inside the shaft of a golf club for sensing of golf club dynamics;

conducting means for conducting of sensed golf club dynamics to at least one transmitting means;

at least one transmitting means for transmission of said sensed golf club dynamics;

at least one receiving means for reception of said transmission of said sensed golf club dynamics;

wherein said golf club dynamics comprise vibration frequencies and amplitudes present in the shaft.

8. An apparatus as in claim 7 further comprising:

at least one transferring means for transferring of said sensed golf club dynamics to processing means;

processing means for processing of said sensed golf club dynamics into human readable indicia;

display means for display of said human readable indicia;

analysis means for analysis of said human readable indicia.

9. An apparatus as in claim 8 wherein:

said at least one sensing means is at least one microphone.

10. An apparatus as in claim 9 wherein:

said conducting means is physical connection between said at least one microphone and said at least one transmitting means.

11. An apparatus as in claim 10 wherein:

said at least one transmitting means is at least one wireless transmitter;

said at least one receiving means is at least one receiver of signals transmitted from said at least one wireless transmitter;

said at least one transferring means is at least one physical connection from said at least one receiver of said signals to said processing means;

said processing means is at least one data acquisition system;

said display means is configured to display output signals of said human readable indicia from said at least one data acquisition system;

said analysis means is software for said analysis of said human readable indicia;

said human readable indicia includes vibration frequency spectrum.

12. An apparatus as in claim 11 further comprising:

signal producing means for producing a signal indicative of golf club natural frequency of flex.

13. An apparatus as in claim 12 wherein golf clubs may be classified relative to one another in both the bench test mode and the dynamic golf shot mode.

14. An apparatus for measuring golf club dynamics and golf club natural frequency of flex comprising:

at least one sensing means inside the shaft of a golf club for sensing of said golf club dynamics;

conducting means for conducting of sensed golf club dynamics to at least one transmitting means;

at least one transmitting means for transmission of said sensed golf club dynamics;

receiving means for reception of said transmission of said sensed golf club dynamics;

transferring means for transferring of said sensed golf club dynamics;

processing means for processing of said sensed golf club dynamics into human readable indicia;

display means for display of said human readable indicia;

analysis means for analysis of said human readable indicia;

wherein said golf club dynamics comprise vibration frequencies and amplitudes present in the shaft, and said natural frequency of flex comprises a frequency of shaft flexure with the grip in a rigid fixture.

15. An apparatus as in claim 14 wherein:

said at least one sensing means is at least one microphone;

said conducting means is physical connection between said at least one microphone and said at least one transmitting means;

said at least one transmitting means is at least one wireless transmitter;

said at least one receiving means is at least one receiver of signals transmitted from said at least one wireless transmitter;

said transferring means is at least one physical connection from said at least one receiver of said signals to said processing means;

said processing means is at least one data acquisition system;

said display means is configured to display output signals of said human readable indicia from said at least one data acquisition system;

said analysis means is software for said analysis of said human readable indicia;

said human readable indicia includes vibration frequency spectrum;

actuating means is provided for actuating a signal indicative of said golf club natural frequency of flex;

said golf club natural frequency of flex is measured by actuation of a signal indicative of said natural frequency of flex.