DEVICE FOR ADJUSTING BACKSWING ARM POSITIONS OF A GOLF PLAYER

• US 3,860,245 A
• Filed: 05/15/1974
• Issued: 01/14/1975
• Est. Priority Date: 05/18/1973
• Status: Expired due to Term

• Current Assignee: Nobuo Yamada
• Original Assignee: Nobuo Yamada
• Inventors: Yamada, Nobuo
• Primary Examiner(s): Marlo, George J.
• Application Number:
  US05/470,318
• Time in Patent Office: 244 Days
• Field of Search: 273/186,183,194,193 116/120 273/54B
• US Class Current: 473/213
• CPC Class Codes: A63B 2071/0625 Emitting sound, noise or music
• CPC Class Codes: A63B 2071/0694 Visual indication, e.g. Indicia
• CPC Class Codes: A63B 69/3608 Attachments on the body, e.g. for measuring, aligning, restraining A63B69/0059, A63B69/3673 take precedence

Abstract

A device used to assist in finding desired backswing arm positions of a golf player, thus contributing to correction of a full swing form. This device is designed with the shape of a wrist watch and can be worn on a wrist by a player while he is practicing his backswings with a golf club in his hands. This device comprises a casing which includes a rotatable inner member having an index mark thereon, a stationary outer member having a scale therearound, and a sound making element of ball form arranged to freely roll in and along an inside guide member of channel form so that the sound making element is moved along the guide member, when the latter is inclined, so as to strike the inner wall surface of the casing and make a sound of impact. By this arrangement, it is possible for the player to preset a position of the rotatable inner member with the index mark pointing to a calibration mark on the scale that suits a desired backswing position and causes the sound making element to strike the casing inner wall so as to make a sound of impact, thus letting him know when his backswing position is as desired.

Claims

1. A device for adjusting backswing arm positions for use by golf players which comprises:

a casing assembly including a peripheral wall, a bottom wall and a top wall;

means for holding said casing on a wrist of a player'"'"''"'"'s arm;

elongated cross guide means arranged rotatably along said bottom wall in the interior of said casing assembly; and

striking means disposed freely movable in the lengthwise direction from one end to the opposite end of said guide means and adapted to strike said peripheral wall of said casing assembly at said oppositE end of said guide means thereby to produce a sound of impact.

2. The device as claimed in claim 1 wherein said casing assembly comprises a carrier member defining said bottom wall and cap defining said top wall supported rotatably with respect to said carrier member, and said guide means is secured to the inside of said top wall of said cap member.

3. The device as claimed in claim 2 wherein said elongated cross guide means comprises a channel member, and said striking means comprises ball means and a striking element adapted to receive said ball means thereon.

4. The device as claimed in claim 2 further including an index mark on the top surface of said cap member and a scale adapted to indicate a predetermined position of said index mark.

5. The device as claimed in claim 1 wherein said casing assembly comprises a carrier member defining said bottom wall, a cap member defining said top wall and supported rotatably by and with respect to said carrier member, said elongated cross guide means being constructed integrally with said top wall of said carrier member.

6. The device as claimed in claim 5 wherein said striking means comprises a single ball.

7. The device as claimed in claim 5 further including an index mark on said cap member and a scale adapted to indicate 2 predetermined position of said index mark.

8. The device as claimed in claim 1 wherein said casing assembly comprises a carrier member defining said bottom wall and a cap member defining said top wall and supported rigidly by said carrier member, said guide means being carried rotatably by and with respect to said carrier member.

9. The device as claimed in claim 8 further including a slot of arcuate configuration in said top wall of said cap member tracing the rotating locus of one projection disposed at one end of said guide means, an index mark provided at said one end of said guide means extending through said slot for rotating motion therealong, and a scale provided along said slot in said top wall of said cap member.

10. The device as claimed in claim 8 wherein said striking means comprises a ball and a striking element receiving said ball therein.