Golf club with impact display

• US 6,923,729 B2
• Filed: 08/05/2002
• Issued: 08/02/2005
• Est. Priority Date: 08/10/2001
• Status: Active Grant

• Current Assignee: Tru-Line Golf, Inc.
• Original Assignee: Tru-Line Golf, Inc.
• Inventors: McGinty, Joseph R., Patterson, Charles C
• Primary Examiner(s): Harrison, Jessica
• Assistant Examiner(s): RADA, ALEX P
• Application Number:
  US10/212,394
• Publication Number:
  US 20030032494A1
• Time in Patent Office: 1,093 Days
• Field of Search: 473219-225, 473139-141, 473/324, 473/329
• US Class Current: 473/222
• CPC Class Codes: A63B 2220/805 Optical or opto-electronic sensors
• CPC Class Codes: A63B 24/0003 Analysing the course of a movement or motion sequences during an exercise or trainings sequence, e.g. swing for golf or tennis
• CPC Class Codes: A63B 69/362 electrical or electronic
• CPC Class Codes: A63B 69/3623 for driving A63B69/3608, A63B69/3658, A63B69/3661, A63B69/3667 and A63B69/3691 take precedence

Abstract

A golf training club comprising optical sensors, electronics and a display to provide visual feedback related to how a golfer strikes a golf ball. The club includes a shaft having a grip end and a tip distal from the grip end. The club has a club head affixed to the shaft proximate the tip that has a face for striking a golf ball. The optical sensors are embedded in the head and generate signals representative of the contact between the face and ball. The electronics, mounted within the shaft'"'"'s grip end, process the sensor signals to determine the location of the contact between the face and ball. The display is operable to show such location. The electronics also process the sensor signals to determine whether the ball is tending to slice or hook by detecting lateral movement of the ball during contact with the face.

Claims

1. A golf training club for use by a golfer, comprising:

a shaft having a grip end and a tip distal from the grip end;

a club head affixed to the shaft proximate the tip of the shaft and having a face plate for striking a golf ball, wherein the face plate defines a plurality of holes extending therethrough, and wherein each hole is adapted to allow ambient light to enter from outside the club head and to pass into the hole;

a plurality of optical sensors for detecting contact between the face plate and the golf ball, wherein each optical sensor is positioned within the club head absent contact with the face plate and extends at least partially into a uniquely associated hole of the plurality of holes, wherein each optical sensor is operable to detect the substantial absence of ambient light passing into the hole uniquely associated therewith that may occur when the golf ball and face plate are in contact during a hit of the golf ball with the club head, and wherein each optical sensor is adapted to produce an electrical signal in response to detecting a substantial absence of ambient light;

electronics mounted within the shaft for receiving at least one electrical signal from the optical sensors during a hit of the golf ball and for processing the at least one received electrical signal to determine the location of contact between the face plate and the golf ball; and

a display for displaying at least the location of contact between the face plate and the golf ball.

2. A golf training club as claimed in claim 1 wherein the plurality of optical sensors comprises an array of optical sensors arranged so that at least one optical sensor detects a substantial absence of ambient light during a hit of the golf ball with the club head.

3. A golf training club as claimed in claim 1 wherein the display is mounted proximate the grip end of the shaft.

4. A golf training club as claimed in claim 1 wherein the electronics are further operable to process electrical signals produced by different optical sensors at different times during a hit of the golf ball to detect the existence and extent of side spin resulting from lateral movement of the golf ball while in contact with the face plate during the hit of the golf ball.

5. A golf training club as claimed in claim 1 wherein the electronics are further operable for processing a received electrical signal from an optical sensor to determine whether the substantial absence of ambient light detected by the optical sensor corresponds to the initial impact of the golf ball against the face plate during the hit of the golf ball and to determine whether to storing data representative of electrical signals subsequently received during the hit of the golf ball.

6. A golf training club as claimed in claim 1 wherein the electronics are further operable to store data representative of electrical signals received from optical sensors corresponding to the locations of initial contact of the face plate and a golf ball from more than one hit and to subsequently cause the display of images showing such locations in sequence according to the order in time of the corresponding hits.

7. A golf training club as claimed in claim 6 wherein the electronics are are further operable to cause the display of an image of an average hit taken over a previous collection of hits.

8. A golf training club as claimed in claim 7 wherein the electronics are further operable to cause the display of a composite image of numerous prior hits to show a pattern of the locations of initial contact.

9. A golf training club as claimed in claim 1 wherein the electronics are further operable to calculate an estimated distance the golf ball would travel based at least in part on measurements made at the face plate at impact with the golf ball.

10. A golf training club for use by a golfer, comprising:

a shaft having a grip end and a tip distal from the grip end;

a club head affixed to the shaft proximate the tip of the shaft and having a face plate for striking a golf ball, wherein the face plate defines a plurality of holes arranged in a pattern and extending therethrough, and wherein each hole is adapted to allow ambient light to enter from outside the club head and to pass into the hole;

a plurality of optical sensors embedded within the club head and separated from the face plate for detecting contact between the face plate and the golf ball, wherein each optical sensor is positioned to receive ambient light passing into a corresponding hole that is optically coupled therewith, and wherein each optical sensor is operable to produce an electrical signal in response to the corresponding hole being substantially covered by the golf ball during a hit of the golf ball with the club head;

electronics for processing signals received from the plurality of optical sensors and for analyzing at least one characteristic of the contact between the face plate and the golf ball during a hit of the golf ball with the club head; and

a display for displaying the at least one characteristic of the contact between the face plate and the golf ball, and wherein the display includes a plurality of individually illuminable elements visible at the grip end of the shaft and arranged in a pattern corresponding to that of the plurality of holes such that each of the individually illuminable elements uniquely corresponds in one-to-one correspondence with a particular hole of the face plate.

11. A golf training club as claimed in claim 10 wherein the display is mounted at the grip end of the shaft.

12. A golf training club as claimed in claim 10 wherein the at least one characteristic comprises the location of the contact on the face plate, and wherein the electronics are further operable, in response to the contact, to illuminate the individually illuminable element corresponding to the hole nearest the location of the contact.

13. A golf training club as claimed in claim 12 wherein the at least one characteristic further comprises the existence and extent of side spin resulting from lateral movement of the golf ball while in contact with the face plate during the hit of the golf ball, and wherein the electronics are further operable to sequentially illuminate individually illuminable elements corresponding to the direction of the lateral movement of the golf ball.

14. A golf training club as claimed in claim 12 wherein the at least one characteristic further comprises the extent of golf ball compression resulting from golf ball contact on the face plate.

15. A golf training club as claimed in claim 10 wherein the electronics are further operable to collect and store data representative of electrical signals produced by optical sensors during the hit of the golf ball, and the electronics are further operable to detect the initiation of the hit and to begin collecting and storing the data in response to such detection.

16. A golf training club as claimed in claim 10 wherein the electronics are further operable to collect and store data representative of electrical signals produced by optical sensors from more than one hit and to cause the display of an image representing the data by selectively illuminating individual illuminable elements of the display.

17. A golf training club as claimed in claim 16 wherein the electronics are operable to cause the display of an image of an average hit determined from a collection of hits.

18. A golf training club as claimed in claim 16 wherein the electronics are further operable to cause the display of a composite image of numerous prior hits to show the pattern of contact location.

19. A golf training club as claimed in claim 10 wherein the electronics are further operable to calculate an estimated distance the golf ball would travel based at least in part on measurements made at the face plate at impact with the golf ball.