| 摘要 |
This invention proposes a simplified belt tensioning machine which, after the forward movement and the manual positioning of the belts (2) on the frame (1) of the piece of furniture by the operator, by tensioning means (12), drives a segment of upper belt placed upstream the frame until it overlaps on a lower segment passing, in alternate direction, through a couple of rolls (4,5) placed side by side in order to lock it and afterwards, when the dragging is in progress, to tension it.
Each of the said tensioning means (12), being activated by a common hydraulic circuit, tensions the respective belt (2) with the force of traction.
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