A - Human Necessities – 01 – D
Patent
A - Human Necessities
01
D
A01D 75/08 (2006.01) A01F 29/22 (2006.01) B24B 3/36 (2006.01) B24B 49/18 (2006.01)
Patent
CA 2300611
A sharpening apparatus for sharpening the blades of a forage harvester chopper drum includes a carriage to which is mounted a grindstone holder that holds a grindstone that is moved across the chopper drum during sharpening operation. The grindstone holder includes an element which is mounted to the carriage for movement towards the chopper drum in order to advance the grindstone. The holder element contains a threaded bore in which is received a threaded shaft that has a ratchet wheel fixed to it. A pawl is located in the path of movement of the ratchet wheel so as to be engaged thereby when the carriage reaches a reversal point at one side of the drum, this engagement causing the ratchet wheel to be rotated by an angular distance occupied by one tooth so that the threaded shaft causes the grindstone holder to move axially therealong and toward the chopper drum so as to advance the grindstone. In one embodiment the element of the holder is cylindrical and is received in a cylindrical opening in the carriage and fixed therein against rotation by a pair of feather keys. In a second embodiment, the element of the holster is a block, with the block and the carriage having cooperating surfaces which guide the movement of the holder towards the chopper drum while preventing any rotation of the holder about the axis of the threaded shaft.
Borden Ladner Gervais Llp
Deere & Company
LandOfFree
Sharpening apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sharpening apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sharpening apparatus will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1407492