| 摘要 |
<p>In an accumulation conveyor comprising a number of conveyor sections (A, B, C...) with mutually drivingly connected transport rollers (4) on which a load, for example a pallet container (8), can be conveyed or be supported, and which is preferably driven by a common drive motor by means of a drive chain (52) which is drivingly connected with a transport roller (6) of each conveyor section (A, B, C...) via a drive wheel (50) and a clutch (40) built into the transport roller (6), the clutch having a control connection with a detecting member (10) which is arranged to detect the presence of a load placed on the conveyor section, and which has a control connection with a clutch of a neighboring section, the clutch (40) is constituted by a clutch hub (44) rotatably journaled on a carrier axle (46) at an end part of the said transport roller (6) and carrying the said drive wheel (50), the clutch hub being surrounded by a connector sleeve (48) which is rotatable in relation to the clutch hub (44) and mounted inside the said end part of the transport roller (6), outside of which the said connector sleeve is rotatably connected to a ring body (62) with radially outwardly protruding control cams (38) and irrotatably connected to a gear wheel (64) intended for driving engagement with a neighboring transport roller (4), and between the clutch hub (44) and the connector sleeve (48) a clutching member (66) is provided which is arranged to release the clutch hub (44) when the said ring body (62) is prevented form rotating by means of engagement between a controlling pawl (36) and one of the control cams (38).</p> |
