Abstract: A tow bar including a towing hitch member connected to a towing vehicle; a towed hitch member connected to a vehicle to be towed; a head member having a front connector connected to the towing hitch member, and an articulated portion; leg connectors pivotally connected to the articulated portion; tow bar legs having outer and inner members constructed of composite material; locking members with biased cam elements and stop elements; rear connectors for connecting the tow bar legs to the towed hitch member; storage latches for releasably securing the tow bar legs in a stored configuration; protective boots for exposed portions of the inner members; and epoxy for securing the outer members to the leg connectors and the locking members, and the inner members to the stop elements and the rear connectors.
Abstract: A tensioning device for connecting a trailer to a spring bar of a load-compensating apparatus includes a body unit for securement to a frame member of a trailer; a reel unit having an off-center hub portion with a slot and rotatively secured to the body unit about a pivot axis; a rotation-limiting element which limits rotation of the reel unit to approximately 180° about the pivot axis; a linked chain having a proximal end thereof releasably secured to the slot of the off-center hub portion and a distal end thereof connected to the spring bar of the load-compensating apparatus; a latching element including a biased latch pin; and a lug and removable handle for rotating the reel portion to, and the latching element releasably locks the reel portion in, a chain-tensioned configuration.
April 15, 2009
Date of Patent:
July 12, 2011
Automatic Equipment Mfg. Co.
Steven Goodman, David Merchant, James Huston, Les Roeber
Abstract: An improved locking mechanism for an arrestably lockable telescoping tow bar assembly comprises a slidable latch member surrounding balls-containing sideward openings of an outer tube that are radially alignable with an outside groove of a telescopingly associated inner tube, the slidable latch member including a medial cam portion slidably surrounding the outer tube between a surrounding retainer ring augmentation therefor and the balls-containing sideward openings therefor; a cover slidably surrounding a trailward part of the slidable latch member and being trailwardly immovable along the outer tube; and a helical spring means acutatably extending between the cover member and the slidable latch member.