STEP-BY-STEP CONVEYOR Russian patent published in 1997 - IPC

FIELD: mechanical engineering; material handling; transportation of nut or packed loads, mass 50-100 kg, by sliding along transportation surfaces and indexing of transported loads at terminal stations. SUBSTANCE: step-by-step conveyor has housing with stops for lifting and lowering of pushers, carriage installed for reciprocating along housing with lower ends of load pushers hinge connected to carriage and pusher extreme position limiters. Load pushers are hinge-connected by tie rod. Stop for lowering the pushers at reverse travel of carriage is made in form of flag, with working position across longitudinal axis of conveyor, arranged for engagement with upper end of load pusher, turning towards the side of housing when load passes by and returning into working position after passage of load. Stop to lift pushers in working position at beginning of direct travel of pusher is arranged below axle of hinge holding pushers of carriage for engagement with pusher shank. Pushers are installed for fixing in extreme positions by means of connecting rod spring-loaded relative to carriage, hinge-connected with pusher shank and installed for passing through dead point when pushers are turned from one extreme position to the other. Spring of connecting rod is installed for pressing the pusher to one turn limiter at direct travel and to other limiter at reverse travel of carriage. EFFECT: enlarged operating capabilities. 12 dwg