Multiple-stage extendable conveyor

An extendable conveyor comprising:

• a base unit, at least two extendable units selectively nested within each other and said base unit and a conveying member supported by said base unit and any extended portions of said extendable units, wherein said extendable units may be adjustably positioned incrementally between fully nested positions within said base unit or the next most inward extendable unit and fully extended position telescoped outwardly from said base unit and from one another;
• a cantilever support for supporting each extendable unit from the next most inward extendable unit or said base unit including at least one rearward support member on the extendable unit engaging the next most inward extendable unit or the base unit and at least one forward support member on the next most inward extendable unit or the base unit supporting the extendable unit;
• and
• each said forward support member including a rotatable support roller below a portion of the supported extendable unit, a support block for mounting the support roller and a low-friction wear strip lateral of a portion of the supported extendable unit.

An extendable conveyor comprising:

• a base unit, at least two extendable units selectively nested within each other and said base unit and a conveying member supported by said base unit and any extended portions of said extendable units, wherein said extendable units may be adjustably positioned incrementally between fully nested positions within said base unit or the next most inward extendable unit and fully extended position telescoped outwardly from said base unit and from one another;
• each said extendable unit includes a top for supporting the conveying member, a pair of sides extending downwardly from said top and terminating in turned end portions;
• a cantilever support for supporting each extendable unit from the next most inward extendable unit or said base unit including a pair of rearward support members on the supported extendable unit engaging the next most inward extendable unit or the base unit and a pair of forward support members on the next most inward extendable unit or the base unit supporting the extendable unit, wherein the forward support members being laterally aligned in a pair of vertical planes adjacent lateral perimeters of said conveying member in order to allow a reduced range in width of said extendable unit and thereby a wider conveying surface relative to the width of said base unit;
• and
• each said forward support member including a rotatable support roller below the turned portion of the supported extendable unit, a support block for mounting the support roller and a low-friction wear strip lateral of the turned portion of the extendable unit for laterally restraining the turned portion.