Variable length shaft

摘要

A variable length golf club shaft is disclosed herein. The variable length shaft includes a hollow lower shaft with a plurality of holes, a hollow upper shaft with at least one protrusion extending from an inner surface that is sized to fit within the plurality of holes, and an unlocking bar. The shaft length can be adjusted by sliding the upper shaft over the lower shaft and using the unlocking bar to release the protrusion from the holes to allow overall shaft length adjustments. in another embodiment, the variable length shaft includes a hollow lower shaft, a hollow upper shaft, an engaging insert, and a locking bar.

主权项

1. A variable length shaft comprising:
a hollow upper shaft comprising a wall having a plurality of holes; a hollow lower shaft comprising a wall having a plurality of holes; a hollow engaging insert comprising an expanding portion having at least one protrusion sized to fit within one or more of the plurality of holes on each of the upper shaft and lower shaft; a grip; and a locking bar, wherein the engaging insert is disposed within the upper shaft, wherein the upper shaft is sized to slidably receive the lower shaft, wherein a portion of the lower shaft is disposed between a portion of the upper shaft and a portion of the engaging insert, and wherein inserting the locking bar into the engaging insert causes the expanding portion to expand, the at least one protrusion to engage with at least one of the plurality of the holes on each of the upper shaft and the lower shaft, and the portion of the tower shaft to press against the portion of the upper shaft.