Claims
- 1. A device for use in choppers with a rotating chopper disk that has a top side and a bottom side, having a knife attached to a knife holder disposed radially on the chopper disk, characterized in that the knife holder includes a filler piece fitting into a recess in the chopper disk, and a knife holder cassette for the knife, the knife holder cassette having a top part and a bottom part, the top and bottom parts being shaped to clamp the knife therebetween, the top and bottom parts being selectively separable to permit knife replacement, the filler piece incorporating a mounting for the knife holder cassette, the cassette being attached to the filler piece by means of a first fastener inserted from the top side of the chopper disk, the first fastener abutting the top part of the knife holder cassette and clamping the knife in place, the filler piece being held fast in the recess in the chopper disk by means of a second fastener, the first fastener being threaded only into the filler piece and not extending through the filler piece into the chopper disk to clamp the knife in place and secure the cassette to the filler piece.
- 2. The device according to claim 1, characterized in that the first fastener is a screw whose head is countersunk into a top surface of the knife holder cassette.
- 3. The device according to claim 1, characterized in that the second fastener is a bolt, said bolt passing through to the bottom side of the chopper disk, a nut being threaded into the bolt from the bottom side of the chopper disk.
- 4. The device according to claim 1, wherein the filler piece forms one edge of an opening for chip flow through the chopper disk, the opening having a diameter, and wherein the interface between the bottom part and the filler piece and the interface between the filler piece and the chopper disk are rebated in such a manner that the width of the opening increases in an axial direction away from the knife.
- 5. A device for use in choppers with a rotating chopper disk that has a top side and a bottom side, having a knife attached to a knife holder disposed radially on the chopper disk, characterized in that the knife holder includes a filler piece, a first fastener, and a second fastener, the filler piece fitting into a recess in the chopper disk, the filler piece being held fast in the recess in the chopper disk by the first fastener passing through from the bottom side of the chopper disk into the filler piece the filler piece incorporating a mounting for a knife shaped to fit the mounting, the knife being attached to the filler piece by means of the second fastener inserted from the top side of the chopper disk, the second fastener abutting the knife and clamping the knife in place, the second fastener passing completely through the knife, the second fastener being threaded only into the filler piece and not extending through the filler piece into the chopper disk to clamp the knife in place and secure the knife to the filler piece.
- 6. The device according to claim 5, characterized in that the mounting has a projection which fits a matching recess in the knife.
- 7. The device according to claim 8, characterized by a wear plate butting on the knife, the wear plate being fastened to the filler piece by means of screws whose heads are countersunk into the wear plate.
- 8. The device according to claim 5, characterized in that the second fastener is a screw whose head is countersunk into a top surface of the knife.
- 9. The device according to claim 5, wherein the filler piece forms one edge of an opening for chip flow through the chopper disk, the opening having a diameter, and wherein the interface between the filler piece and the chopper disk is rebated in such a manner that the width of the opening increases in an axial direction away from the knife.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8202509 |
Apr 1982 |
SEX |
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Parent Case Info
This application is a continuation of application Ser. No. 717,584, filed Mar. 29, 1985 now abandoned.
US Referenced Citations (8)
Continuations (1)
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Number |
Date |
Country |
Parent |
717584 |
Mar 1985 |
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