| 摘要 |
Block for a temporarily located transport line for the removal of e.g. cut timber. The block contains two pulleys (12) arranged at a distance from each other and intended for the support and/or angular deviation of a band (20), a rope or the like. The aim of the invention is to achieve a block for reciprocating transport lines, which also at sharp angles ensures that the transport rope, the carrier and the strap easily pass through the block. This has been achieved thereby that the block (10) is formed as a bogie, the shell (11) of which is equipped with a suspending device (15), which is rotatable at one hand about a shaft (16) parallel to the pivots (14) of the pulleys, and on the other hand about arpivot perpendicular to the pivots, whereby the block can assume required relative positions during the time the load approaches, passes through and moves away from the block, that the shell and the pulleys are formed in such a way and arranged thus that they substantially enclose the band, with exception for a slit (13), which entirely or partially is covered by at least one locking device (22) formed to prevent the band from passing out through the slit and that the locking device (22) can be passed by a strap (21), a loop or the like protruding from the band against the action of a return force. |
