To solve problems wherein defects exist in the complicated configuration and in durability and arrangement of a roller in the direction of movement.
This roller conveyor 1 is provided with many rollers 3, 3a between a pair of parallel frames 2 and 2a rotatably. A braking plate 7 provided with a plurality of engaging holes 8, 8a on the same circumference is provided in end parts of the rollers 3, 3a. The stopper 12 having an engaging pin 11 engageable with the engaging holes 8, 8a of the braking plate 7 is energized in the direction of roller in parallel with a roller axis and is provided in a frame 2 on one side so as to advance and retract. A cam projection 24 for letting the stopper 12 advance and retract for a driving shaft 23 provided rotatably in the longitudinal direction of the frame 2 on one side is protrudedly provided, and a circular arc cam peripheral face 25 on which the cam projection 24 comes into contact with a following body 17 provided on the stopper 12 and slides at a horizontal position or an upper position is provided to let the stopper 12 advance and retract from an outer side of the frame 2. Consequently, the configurtion becomes simple, and durability is improved. The rollers 3, 3a can be freely arranged because a movement mechanism does not exist between the rollers 3 and 3a.
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