Mechanical emergency dual-release mechanism for an external carg

Details Mechanical emergency dual-release mechanism for an external carg Mechanical emergency dual-release mechanism for an external carg

1997-10-02

1998-12-22

Mojica, V. Lissi

Aeronautics and astronautics

Aircraft structure

Passenger or cargo loading or discharging

2441374, B64D 0108, B64D 0900, B64D 0112

Patent

active

058509917

ABSTRACT:
One embodiment of a mechanical emergency dual-release mechanism for use in combination with a helicopter external cargo hook system that includes a cargo hook assembly that is operative to jettison an externally-attached cargo includes an interface member for mounting the dual-release mechanism in rigid combination with the cargo hook assembly, a pulley axle mounted in rigid combination with the interface member, a cockpit pulley assembly mounted in rotatable combination with the pulley axle, a cabin pulley assembly mounted in rotatable combination with the pulley axle, and a displacement transfer member that operatively interconnects the cockpit pulley assembly and the cabin pulley assembly. The cabin pulley assembly is functionally interconnected to the cargo hook assembly and operative in response to a mechanical stimulus generated by means of the cockpit pulley assembly or the cabin pulley assembly to activate the cargo hook assembly to jettison the externally-attached cargo.

REFERENCES:
patent: 1332345 (1920-03-01), Kenyon
patent: 3957233 (1976-05-01), Adams
patent: 3957234 (1976-05-01), Mulvey
patent: 4598882 (1986-07-01), Opdahl
patent: 5158247 (1992-10-01), Ferrier
patent: 5465925 (1995-11-01), Connolly et al.
patent: 5499785 (1996-03-01), Roberts et al.

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