Aircraft ejection seats

Details Aircraft ejection seats Aircraft ejection seats

1985-11-07

1987-06-30

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft structure

Fuselage and body construction

297216, 297466, B64D 2504

Patent

active

046764623

ABSTRACT:
An arm restraint system for an aircraft ejection seat comprises triangular nets, each secured at one of its corners to a respective upper point on the side of the seat back and at another of its corners to a respective lower point on the side of the seat back. The remaining corner of each net is secured to one end of a respective retraction line which passes through a respective reversing arrangement at the front of the respective side wall of the seat, along a respective conduit extending along the side of the seat, to gas-powered line-retraction device mounted in the seat back. In the normal position, each line, from its point of attachment to the net, extends through an eye provided on a respective projectile carried by the seat. When an ejection sequence is initiated, the projectiles are thrown transversely outwardly from the seat back and the lines retracted to pull the outwardly thrown ends of the nets forwardly to pass on the outside of the airman's arms and restrain the airman's arms from moving outwardly during ejection of the seat from an aircraft.

REFERENCES:
patent: 2829850 (1958-04-01), Culver
patent: 3083938 (1963-04-01), Brinkworth et al.
patent: 3214117 (1965-10-01), James et al.
patent: 4081156 (1978-03-01), Ideskar
patent: 4215835 (1980-08-01), Wedgwood
patent: 4359200 (1982-11-01), Brevard et al.

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