Liftable roller conveyer

Details Liftable roller conveyer Liftable roller conveyer

1995-07-31

1996-10-29

Bidwell, James R.

Conveyors: power-driven

Conveying system having plural power-driven conveying sections

With relatively adjustable sections

198581, 1988615, B65G 2110

Patent

active

055688578

ABSTRACT:
An improved roller conveyer for conveying objects is disclosed. It comprises: (a) a fixed conveyer section having first parallel frames supported on upright stands and a plurality of first parallel rollers mounted between the first parallel frames of the fixed conveyer section; (b) a power drive for rotating the first parallel rollers of the fixed conveyer section when conveying objects; (c) a liftable conveyer section having second parallel frames and a plurality of second parallel rollers mounted between the second parallel frames of the liftable conveyer section. The liftable conveyer section has: (a) a fixed end pivoted to one end of the fixed conveyer section and a free end; (b) a transmission mechanism mounted on the liftable conveyer section for rotating the second parallel rollers of the liftable conveyer section; (c) a clutch member mounted on the liftable conveyer section couple the transmission mechanism with the power drive; and (d) a plurality of gas spring levers and springs respectively mounted on the liftable conveyer section to provide resistance to the liftable conveyer section when it is down-lifted. The transmission mechanism is coupled to the power drive by the clutch member when the liftable conveyer section is not lifted, and the transmission mechanism is disconnected from the power drive when the liftable conveyer section is lifted from the fixed conveyer section.

REFERENCES:
patent: 1338727 (1920-05-01), Gretencord
patent: 2675118 (1954-04-01), Morrison
patent: 2696900 (1954-12-01), Finstead
patent: 3353652 (1967-11-01), Fellner, Jr.
patent: 3746144 (1973-07-01), Englert
patent: 3779367 (1973-12-01), Hope et al.
patent: 3885682 (1975-05-01), McWilliams
patent: 5172804 (1992-12-01), Chersin

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