Apparatus for actuating a breakaway conveyor section

Details Apparatus for actuating a breakaway conveyor section Apparatus for actuating a breakaway conveyor section

1986-09-18

1988-06-28

Massie, IV, Jerome W.

Conveyors: power-driven

Conveying system having plural power-driven conveying sections

With means connecting sections for quick assembly of...

198592, 1988604, 198950, B65G 4300

Patent

active

047533374

ABSTRACT:
An apparatus for actuating a breakaway conveyor section includes an actuating means positioned below a lower edge of a fire door adapted to move vertically downward along an outside wall of a building to close an opening. A breakaway conveyor section is pivotly connected to an end of a fixed conveyor section outside the building and extends adjacent to an end of a fixed conveyor section inside the building and extending into the opening in the wall. The actuating means includes an actuating plate positioned below a lower edge of the fire door and pivotally connected to a pair of generally vertically extending slides by a pair of lever arms. The slides are maintained in an upper position by a pair of link arms pivotally connected to form an over center mechanism attached between the slides and the conveyor inside the building. A lower end of the slides is slidingly attached to horizontal slides which extend through the opening in the wall to support a free end of the breakaway conveyor section. When the fire door is released, it falls, striking the actuating plate which pivots about the vertical slides to release the over center mechanism and allows the vertical slides to drop. The falling vertical slides actuate the horizontal slides to retract them through the wall and allow the breakaway conveyor section free end to pivot downwardly out of the way of the falling fire door.

REFERENCES:
patent: 3630439 (1971-12-01), Cook
patent: 4497254 (1985-02-01), Schmidt

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