Patent ID: 6053679
Filing Date: 2000-04-25
Classification: B60P

Abstract:
A carriage for rollable suspension of a bulkhead door from a pair of overhead roller tracks, the bulkhead door having a lading-engaging panel extendably and retractably attached thereto, the carriage comprising:(a) a bulkhead door suspension beam having a lateral side surface;(b) a lading-engaging panel suspension beam having a lateral side surface, the bulkhead door suspension beam and the lading-engaging panel suspension beam being positioned so that their lateral side surfaces face each other;(c) first rollable mounting means spanning laterally between and interconnecting the bulkhead door suspension beam and the lading-engaging panel suspension beam whereby the lading-engaging panel suspension beam is alternately extendable from and retractable toward the bulkhead door suspension beam; and,(d) second rollable mounting means fixedly attached to the bulkhead door suspension beam, the second rollable mounting means allowing, upon placement of the second rollable mounting means in rolling contact with the pair of overhead roller tracks, rolling motion, in unison, of the bulkhead door suspension beam, the lading-engaging panel suspension beam, and the first rollable mounting means.