Elevator car with elements combining both structural and wiring housing functions

Claim 1

In an elevator car having a plurality of electrical conductors and a passenger compartment including a platform, four walls and a roof, a slidable door assembly closing an opening in the front wall of said compartment, a track supporting said door assembly, a motor controlled door operating device for moving said door assembly between open and closed positions, a mounting frame supporting said door operating device, a car sling supporting said passenger compartment, said platform being resiliently supported by said sling, a threshold plate for said platform in front of said opening, a threshold channel having a top, a bottom and a back wall, said channel being affixed to said platform, supporting said threshold plate on its top wall portion and extending across the fRont of said platform to at least one front corner thereof, an individual upright support extending upwardly from each of the two front corners of said platform affixed to said sling and extending above the roof of said passenger compartment, said upright supports providing support for said track and said mounting frame, the improvement including a front wall for said threshold channel removably fastened to said channel, said channel with said front wall connected thereto comprising a horizontal wiring duct for housing said electrical conductors, and that at least one of said upright supports is a hollow member comprising a vertical wiring duct, said vertical wiring duct being loosely connected to said horizontal wiring duct permitting relative motion therebetween, said vertical wiring duct receiving at least a portion of said electrical conductors from said horizontal wiring duct and distributing them to one front corner of the top of said car above the roof of said passenger compartment.