Material handling car and track assembly having opposed magnet linear motor drive and opposed permanent magnet brake assembly

A material handling car and track assembly, said assembly comprising

• a car having wheels mounted thereon, and a track having two parallel rails, said wheel being adapted to rolll on said rails to faciliate movement of said car along said track, a metal fin extending from an underside of said car and lengthwise of said car, said fin exending from said car between said wheels and
• opposed linear motors mounted between said tracks, said motors being spaced from each other by a distance exceeding the thickness of said fin to define a gap between said motors, said fin being adapted to pass through said gap in travel of said car over said motors said motors being oriented such as to substanatially eliminate magentic attraction between said motors and said car, and said motors bieng disposed between said wheels when said car passes over said motors, said moors being disposed at a level above bottom plates of said track rails and genraly equal to the level of portions of said wheels above said bottom plates and above the axes of said wheels when said car passes over said motors, and
• opposed permanent mgents mounted between said tracks at a point removed from said motors, said magnets being spaced from each other by a distance exceedig the thickness of said fin to define a gap between said magnets, said fin being adapted to pass through said gap between said magnets in travel of said car over said magnets, said magnets being disposed on plates mounted between said tracks, said magnets being mounted side by side in a direction of travel of said car, said magnets being operative sequentially to act on said fin to impart braking to said car, whereby said motors are operative to accelerate said car and said magnets are operative to decelerate said car.

Material handling car and track assembly, said assembly comprising:

• a car having wheels mounted thereon, and
• a track having two parallel rails, said wheel being adapted to roll on said rails to facilitate movement of said car along said track,
• a metal fin extending from an underside of said car and lengthwise of said car, and
• opposed magnet assemblies mounted between said tracks, said opposed assemblies being spaced from each other by a distance exceeding the thickness of said fin to define a gap between said magnet asemblies, said fin being adapted to pass through said gap in travel of said car over said magnets, each of said assemble is comprising a mounting bracket, a plate attached to said mounting bracket, and a series of magnets bonded to said plate, said magnets on said plate being disposed side by side in a direction of travel of said car on said rails, said magnets being operative sequentially to act on said fin to impart braking to said car.