US Patent 12011632 Adjustable carriage assembly

An adjustable carriage assembly is configured to be mounted on a frame member of a weight rack and includes a moveable carriage with a plurality of rollers that engage the frame member, as well as a connection structure for connection of an articulating implement. A releasable pin is mounted on the carriage proximate to a rear of the carriage and has an arm configured for engagement to move the releasable pin. The releasable pin is moveable by axial translation between a locked position and an unlocked position to selectively engage the frame member to lock the carriage in position or permit movement of the carriage. A removable pin may be removably received through a pin hole in the carriage to extend through the passage in a direction perpendicular to a direction of axial translation of the releasable pin, to engage the frame member to prevent movement of the carriage.