Patent ID: 6070534
Filing Date: 2000-06-06
Classification: B61B

Abstract:
A conveying system for transporting a load comprising;a transport cart;a plurality of rollers supporting said transport cart;roller receiving guides defining a path of travel of said transport cart;a plurality of serially arranged drive means spaced along said path of travel of said transport cart, each of said plurality of serially arranged drive means having a plurality of recesses spaced apart along said path of travel at a pitch distance, each of said plurality of serially arranged drive means including reversing wheels, adjacent ones of said reversing wheels on said serially arranged drive means being spaced apart along said path of travel by a transition area having a first distance;spaced pushers on said transport cart, said spaced pushers on said transport cart being spaced along said path of travel at a second distance, said second distance being greater than said first distance, and a multiple of said pitch distance, said spaced pushers engaging two of said drive means in said transition area; anda resilient support, said resilient support mounting said spaced pushers on said transport cart and providing a spring force for urging said spaced pushers into engagement with said spaced recesses on said drive means to drive said transport cart, said spaced pushers being disengageable from said spaced recesses against said spring force upon relative movement between said transport cart and said drive means in a transport direction of said transport cart.