Patent ID: 7591772

Claim:
An exercise bar for a releasable collar, comprising: an elongated bar having an outer diameter to receive a collar over an outer surface at an end of said elongated bar and, the end of said elongated bar surrounding an axially extending first bar recess communicating with an exterior of the end of said elongated bar at a proximal end of said first bar recess, said first bar recess having an inner diameter; an actuator comprising a generally cylindrical body axially movable within said first bar recess; at least one actuator recess formed in said actuator having a first depth along a first axial extent and a second depth along a second axial extent of said actuator recess, said first depth being less than the radial dimension of a detent means and said second depth being at least equal to a radial dimension of a detent means; a detent means housed in each said recess; stop means radially adjacent said detent means, wherein said detent means engages said stop means when said actuator is in a first axial position wherein said first axial extent of said actuator recess is axial registration with said stop means; and biasing means biasing said actuator with respect to said elongated bar for maintaining said actuator in said first axial position; and an axial projection extending from said actuator away from the end of said elongated bar and a second bar recess extending from said first recess substantially coaxially therewith to receive the axial projection.