EMERGENCY EVACUATION DEVICE Russian patent published in 2005 - IPC

FIELD: life-saving equipment, particularly for rescuing people from ablaze multi-story buildings.

SUBSTANCE: device includes pulley having body and lid. Embedded into body and lid is reel with flexible member connected thereto by one end and wound round the reel. Reel is secured to body and lid by means of fixed pins and hinges. Device also has rotary reel actuator and braking means adapted to perform operative control of reel torque. Connected to another flexible means end is safety hook. When rope unwinds from reel braking means actuates braking drum built in reel, two semi-rings located inside braking drum and cooperating with it, an joint pin and adjusting screw. Device is also provided with bandage secured to pulley body or to safety hook by shock. Shock has orifice formed as groove and is made of antifriction material. Device also includes automatic brake. The latter includes wedges, rotary disc installed in pulley body and cooperating with wedges by orifice edge, and pressing disc. Braking drum includes splines. Outer wedge surface is rounded and has radius equal to that or rotary disc orifice. Sides defining wedge have different lengths. Rotary reel actuator may rotate only in one direction.

EFFECT: increased reliability.

2 cl, 7 dwg