| 摘要 |
<p>A conveyor idler roller assembly including an outer roller (1) carried in a conveyor frame (11) on a shaft (10) extending outwardly therefrom, said shaft having pivotally mounted at the free end thereof a disc (20) the plane of which is parallel to the shaft axis and the axis of the mounting (23) at right angles to said shaft axis, said mounting being on a diameter of the disc (20) remote from the centre thereof and said disc further including a flat surface portion (21) parallel to a diameter and at right angles to the axis of said pivotal mounting, whereby when the flat portion (21) of said disc co-operates with said frame (11) the idle roller assembly provides support for a conveyor belt (18) and when said disc is rotated about said mounting to move said flat portion remote from said frame the idler roller assembly ceases to provide support for said conveyor belt (18).</p> |
