Adjustable cushioned tow bar for power and free conveyor

B - Operations – Transporting – 61 – B

Patent

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Details

B61B 12/04 (2006.01) B61B 10/00 (2006.01) B61B 10/02 (2006.01) B65G 19/02 (2006.01)

Patent

CA 2190908

A cushioned tow bar for connecting a drive trolley to a load carriage in a power and free conveyor system includes a particulate shock absorber with a damping chamber which is partially filled with particulate material, such as small ball bearings, which act to dampen the movement of a piston through the damping chamber. The damping chamber comprises a portion of a sleeve which includes a threaded end cap which mates with threads on an open end of the sleeve. The threads in the sleeve extend along the longitudinal axis of the sleeve to an extent which allows the end cap to be threadably adjusted, changing the portion of the sleeve forming the damping chamber, and thus adjusting the cushioning effect of the tow bar.

Cette invention concerne une barre de traction à amortisseur servant à raccorder un chariot d'entraînement à un chariot porte-charge de convoyeur aérien à double voie, ledit amortisseur comportant une chambre d'amortissement partiellement remplie de matériau particulaire, de petites billes de roulement, par exemple, qui sert à amortir le mouvement d'un piston logé dans cette chambre. Cette dernière comporte une partie manchon à capuchon d'extrémité fileté qui se visse sur l'extrémité libre dudit manchon. Le filetage du manchon se prolonge le long de l'axe longitudinal de celui-ci sur une distance telle qu'il est possible de modifier la position du capuchon en le vissant plus ou moins loin et, ainsi, modifier le volume de la chambre d'amortissement et la capacité d'amortissement de la barre de traction.

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