초록 ▼

A mechanism for actuating a restraint divestment system for instant release of a crewman equipped with a parachute and restraint harness from an aircraft ejection seat mounted restraint assembly in the event of any emergency requiring such separation. In non-ejection emergencies, the mechanism effec

A mechanism for actuating a restraint divestment system for instant release of a crewman equipped with a parachute and restraint harness from an aircraft ejection seat mounted restraint assembly in the event of any emergency requiring such separation. In non-ejection emergencies, the mechanism effects the release of leg restraints, seat lap belt, and the disconnect couplings connecting the parachute riser and shoulder straps and survival kit to the harness so that, in the event of a surface emergency, the crewman can escape from the aircraft with his harness intact. The actuating mechanism includes a pull cord actuated bell crank mechanism which actuates the various release mechanisms and is then latched in its full release position, and an interlock which is actuated by the seat\s ejection control, to prevent release of the parachute risers and survival kit thereafter, so that the system can then be utilized by a crewman for manual separation from the seat and parachute descent with his survival kit still attached to his harness.

대표청구항 ▼

A single point actuating mechanism for use in sequentially actuating a multiple unit system, comprising in combination, a rotary rewind spring biased cable driven sheave having a pull cable secured thereto and terminating in a pull handle, a stiffly releasable detent means engaging said sheave for i

A single point actuating mechanism for use in sequentially actuating a multiple unit system, comprising in combination, a rotary rewind spring biased cable driven sheave having a pull cable secured thereto and terminating in a pull handle, a stiffly releasable detent means engaging said sheave for initially restraining said sheave against unintended rotation, a rotatable multi-armed bell crank mounted for coaxial rotation with respect to said sheave, lug means on said sheave for operative driving engagement with said bell crank after partial rotation of said sheave, link means operatively coupling said bell crank arm to selected units of the system to be actuated as said bell crank is turned by said cable driven sheave, and said detent means engaging and locking said bell crank to positively hold said bell crank in its fully rotated position upon completion of the pull on and subsequent release of the pull handle. An actuating mechanism as defined in claim 1 further including a firing mechanism for igniting a rapid deflagrating cord comprising, in combination, a tubular housing, means at one end of said housing for receiving the ignition end of a rapid deflagrating cord, a firing pin slideably mounted in said housing for operative engagement with said ignition end, a spring for driving said firing pin into igniting relationship with said ignition end, means for releasably holding said firing pin in cocked position, and means coupling said releasably holding means to said bell crank for releasing said firing pin in response to rotation of said bell crank by said pull cable driver sheave.