| 摘要 |
A gravity wheel conveyor or roller conveyor is provided capable of braking for moderating and reducing the transfer speed of a relatively lightweight object being transported by using brake wheels or brake rollers, or of brake control for stopping the object being transported at a target position. In the wheel or roller conveyor that is constructed by arranging a plurality of freely rotatable wheels 4 or rollers 10 in the transporting direction of an object, which transports an object being transported 1 by its gravitational operation, one or more selected wheels 4 or rollers 10 are constructed as brake wheels 6 or brake rollers 12 each having an outer circumferential surface onto which a brake material 7 or 11 that is soft and high in its rebound resilience is fixed so as to protrude to form a diameter larger than the outer circumferential surface of each of the wheels or rollers.
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