Abstract: The present invention relates to an idle gear set for an overhead poultry conveyor, the gear set including a variable structure chain gear capable of being adjusted in size according to the needs of a user. Specifically, an idle gear set for an overhead poultry conveyor includes a chain gear for moving a roller assembly, the chain gear comprises: a pair of plates vertically spaced apart and arranged in parallel; and a plurality of chain guides interposed between the pair of plates, and radially arranged along the circumferences of the plates, wherein the chain guides are arranged to be spaced apart such that a mounting groove into which the roller assembly is inserted can be formed between the chain guide and another adjacent chain guide.

Abstract: The present invention relates to a roller assembly for a trolley conveyor that moves along a rail track including a flange and a web. The roller assembly for a trolley conveyor includes a pair of brackets that is placed respectively on both sides of the rail track, that has the shape of cranks corresponding to each other and that includes a mounting hole for installing a below-described shaft, a roller that is rotatably coupled to the upper end of the bracket so as to be mounted on the web and slide, and a shaft that penetrates the roller, that is coupled to the roller and that is inserted into and fixed to the mounting hole. The roller assembly with the configuration may have a simple structure, may be easily assembled and disassembled and may ensure durability.