Collapsible elevator for package elevating wrapping machine

Details Collapsible elevator for package elevating wrapping machine Collapsible elevator for package elevating wrapping machine

1987-10-01

1989-02-21

Coan, James F.

Package making

Interrelated or safety controls

53 52, 53556, 493 33, B65B 5708

Patent

active

048053732

ABSTRACT:
A collapsible elevator for a package elevating wrapping machine comprises a base member, a package supporting member and a pair of spring-biased rods. The rods resiliently engage the package supporting member to maintain it in a package elevating position relative to the base member, yet permit it to be resettably collapsed relative to the base member upon exertion of a defined force on the package supporting member. The package supporting member comprises a top plate and two downwardly extending spaced supports which have notches in their lower ends for receiving the spring-biased rods. The supports define surfaces which taper inwardly toward the top plate to facilitate resetting the elevator. An electrical switch is coupled to the base member and a switch actuating rod is coupled to the package supporting member and adapted to activate the electrical switch upon collapse of the elevator. The package elevating wrapping machine is shutdown upon a signaled elevator collapse to substantially reduce the possibility of damaging the machine by the jam condition which caused the collapse of the elevator.

REFERENCES:
patent: 2470762 (1949-05-01), Dickenson
patent: 3398659 (1968-08-01), Egleston
patent: 4498893 (1985-02-01), Odom
patent: 4513558 (1985-04-01), Treiber

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