| 摘要 |
1,212,013. Safety harness reels. TELEFLEX PRODUCTS Ltd. 19 March, 1968 [20 March, 1967], No. 13042/67. Heading A3V [Also in Division F2] A safety harness reel comprises a rotary reel spool or drum 13, a fluid operated piston-and-cylinder unit 33 coaxial therewith, a rotary drive member 39 for engagement with the reel spool, and driving connections 42, 43 for converting the rectilinear motion of the piston-and-cylinder unit into rotary motion of the drive member, the initial movement of the piston engaging a clutch 44 while subsequent movement causes rotation only. The reel also has an inertia operated unit 20 comprising an inertia member 23 having balls 26 in elongated sockets between it and the reel which cause the member 23, at a predetermined rate of strap acceleration, to engage the stationary member 29 and thus halt the unwinding of the strap 15. The unit is suitable for use with ejector seats and is operated to take up any slack in the strap prior to ejection from an aircraft. |
