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US 4,068,881 AGranted
Arrangement for automatic regulation of the cable length of a holding cable of grab means
AssigneeVyzkumny ustav lesniho hospodarstvi a myslivosti
InventorsMirko Dressler, Ladislav Dofek
Life of this patent
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Abstract
Grab means suspended on the end of a jib of traction means, particularly on tractors used for timber skidding are secured in their position by a cable which is automatically tensioned by provided tensioning means.
Claims3
An arrangement for the automatic regulation of the cable length of a securing cable of grab means suspended on one end of an auxiliary arm supported in rocking fashion on one end of an elongated jib arm, which jib arm is anchored on some traction means and adapted to be raised and lowered, said arrangement comprising in combination:
- a holding cable, one end of said cable being coupled to the grab means, the other end of said cable being fastened to the other end of the auxiliary arm remote from the end of said auxiliary arm on which said grab means is suspended;
- first guiding means for said cable provided on the grab means;
- second guiding means for said cable disposed on said jib arm;
- a tensioning roller with tensioning means for tensioning said cable disposed on said jib arm;
- said holding cable overlying a portion of said tensioning roller;
- third guiding means for said cable provided on said jib arm;
- and
- means for securing said holding cable to the free end of the auxiliary arm.
5 more elements
Dependencies are inferred from the claim text.