A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

A hockey stick extension device features a mounting component configured for installation on a shaft of a hockey stick at a handle-end thereof, and a slider component telescopically mated with the mounting component for sliding axial movement therealong between a retracted position minimizing a combined axial length of the mounting component and the slider component, and an extended position maximizing the combined axial length of the mounting component and the slider component. With the mounting component installed at the handle-end of the shaft of the hockey stick, sliding movement of the slider component from the retracted position to the extended position increases an overall effective shaft length of the hockey stick.

A hockey stick extension device features a mounting component configured for installation on a shaft of a hockey stick at a handle-end thereof, and a slider component telescopically mated with the mounting component for sliding axial movement therealong between a retracted position minimizing a combined axial length of the mounting component and the slider component, and an extended position maximizing the combined axial length of the mounting component and the slider component. With the mounting component installed at the handle-end of the shaft of the hockey stick, sliding movement of the slider component from the retracted position to the extended position increases an overall effective shaft length of the hockey stick.

The present invention provides an apparatus for connecting shaft portions of sports equipment comprising a first shaft portion of sports equipment; a second shaft portion of sports equipment; a locking means for mounting the first and second shaft portions; the locking means comprising a locking ring, an extending member and a first receiver means; the extending member mounted to the second shaft portion; the first receiver means comprising a hollow portion adapted for receiving the first portion of the extending member; the first receiver means mounted to the first shaft portion; the locking ring rotatable mounted on the extending member; the extending member comprising a first portion which is removable mounted to the first receiver means; and the first portion adapted for restricting the rotational movement of the extending member inside the first shaft portion.

The present invention provides an apparatus for connecting shaft portions of sports equipment comprising a first shaft portion of sports equipment; a second shaft portion of sports equipment; a locking means for mounting the first and second shaft portions; the locking means comprising a locking ring, an extending member and a first receiver means; the extending member mounted to the second shaft portion; the first receiver means comprising a hollow portion adapted for receiving the first portion of the extending member; the first receiver means mounted to the first shaft portion; the locking ring rotatable mounted on the extending member; the extending member comprising a first portion which is removable mounted to the first receiver means; and the first portion adapted for restricting the rotational movement of the extending member inside the first shaft portion.

A sport apparatus comprising a shaft, wherein the shaft comprises a notch fitting and a sensor housing. The sensor housing comprises an alignment rib fitting, printed circuit board, rechargeable battery, one or more motion sensors, a transceiver, an inductive charging coil, among other necessary elements for the sport apparatus as described herein. A portion of the sensor housing resides within the shaft, wherein the alignment rib of the sensor housing mates with a notch or other locking mechanism of the shaft.

Embodiments of golf coupling mechanisms for joining golf club heads and shafts are described herein. The golf coupling mechanism allows for adjustment of a club head loft angle, a club head lie angle, and a golf club shaft length while utilizing one club head and one shaft. In a fully extended configuration, the golf coupling mechanism includes a shaft sleeve, a removable spacer, and a removable extender, wherein a fastening assembly secures the golf coupling mechanism to the golf club head. In a contracted configuration, the golf coupling mechanism includes the shaft sleeve. The golf coupling mechanism further includes a shaft cap to soften the interaction between the shaft and the golf coupling mechanism. The golf coupling mechanism further comprises one or more arcuate coupler sets to frictionally lock the shaft relative to the golf club head.

A rotational assistive device includes a first end portion configured for operable connection with a user, and a second end portion configured for operable connection with an implement utilized via a swinging motion. A main body portion extends between the first end portion and the second end portion. The main body portion includes a plurality of telescoping leg portions, such that when the implement and rotational assistive device are swung, the main body portion moves between a closed position having a closed length and an extended position having an extended length greater than the closed length.

A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.