| 摘要 |
A tractor mountable handling device for handling baled material, such as giant round hay bales, employs an open center, open coil helical screw that is screwed into the bale, and a frame for holding the bale on the three-point hitch of the tractor or on a front loader thereof. The helical screw is rotated under power to engage the baled material, and is reversely rotated to release the material. The pitch of the screw is selected small enough so that the bale will not rotate and release itself from the helical screw under its own weight while being handled by the device.
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