Pivoting breakaway coupling system

Details Pivoting breakaway coupling system Pivoting breakaway coupling system

1978-09-14

1980-09-02

Downey, Kenneth

Movable or removable closures

With specified means to effect emergency release to closure

E05C 1502

Patent

active

042199697

ABSTRACT:
By securely holding a gate arm connected pivot bar in a retaining and supporting assembly which supportingly holds the pivot bar in one position and allows the pivot bar to drop free when the bar has arcuately rotated into a second position, a universally applicable, pivoting breakaway coupling system is achieved which assures controlled, repeatable, impact breakaway of a roadway crossing gate arm from the control system. The universally applicable, breakaway coupling system of the present invention incorporates a crossing gate arm having a breakaway adapter securely mounted to one end thereof, with the breakaway adapter incorporating a pivot bar which is quickly and easily securely positioned in the retaining assembly for secure, supporting retention thereon when in a first position. Also, the breakaway coupling system preferably incorporates a pivot pin, about which the pivot bar rotates, and two support ledges, aligned with each other and lying in a plane substantially perpendicular to the central axis of the pivot pin, thereby assuring supporting retention of the gate arm in its first position, and complete disconnection when rotated into a second position.

REFERENCES:
patent: 3394498 (1968-07-01), Reinitz et al.
patent: 4090685 (1978-05-01), Pappas

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