Abstract: A golf swing training device which dynamically controls the user's backswing plane and his downswing plane during his golf swing. The device comprises an arcuate open ring which moves in synchronism with the golfer's swing and to which the golf club is attached. The correct backswing plane is established initially and is modified by the device as the backswing occurs by moving the ring to the golfer's left and the backswing end of the ring rearward thereby establishing the correct downswing plane which is retained until the swing is completed. After completion of the swing, the machine restores the ring to its original position. Movement of the ring is controlled by a system including four vertical posts each of which is mounted on its own movable carrier, two timing devices, compressed air actuators, and a whisker switch sensing element which is closed by the user's golf club as the club is moved away from the ball during the backswing.

Abstract: A golf swing training device having at least one pair of adjustable and flexible guide rails, the guide rails controlling the swing path and swing plane of a golf club swung between them. A clubhead guide may also be incorporated in the device to insure that the clubhead does not top the ball. The flexible guide rail is supported by a spring construction which permits the flexible guide rail to swing away from the other guide rail in response to impacts with the shaft of the golf club. The flexible guide rail includes an audible signaling device and the ends of such rail are positioned at an angle with the plane of the other guide rail to facilitate guiding the golf club into the hitting zone.