Patent ID: 7506741

Claim:
A wheel conveyor, comprising: side frames provided in parallel on both sides, plate-shaped stays formed from plate bodies, attached hanging between side frames and provided with wheel unit attachment grooves on an upper surface, and wheel units having fixing protuberances for insertion into wheel unit attachment grooves formed into the plate-shaped stays, wherein the wheel units are formed from a combination of two wheel attachment bodies provided side by side, and a cylindrical wheel provided to rotate by means of a rotation shaft between the two wheel attachment bodies, each wheel attachment body is comprised of an attachment plate, provided with rotational bearing holes for axially supporting a rotation shaft of the wheel in a rotatable manner and support holding sections at a plurality of positions in a longitudinal direction, and a plurality of support sections provided projecting to the attachment plate in opposite directions in the longitudinal direction of the wheel attachment bodies, and a wheel unit is assembled by rotatably providing a wheel by inserting a rotation shaft into a rotation bearing between two attachment plates, at the same time as fitting projecting end sections of support sections of each wheel attachment plate into support holding sections provided in opposite wheel attachment plates, and together with detachably attaching a plurality of wheel units on a plurality of plate-shaped stays provided spanning in the longitudinal direction between side frames in a line arrangement in the longitudinal direction of the side frames, by inserting a plurality of the fixing protuberances into the wheel unit attachment grooves of the plate-shaped stays, the plurality of the fixing protuberances are detachably attached in the wheel unit attachment grooves in a width direction.