| 摘要 |
The mini drawknife body has one or more fixing openings which allow its assembly in the adjacency of the support periphery; from the notched rim, the body extends briefly right across until reaching such a width that the rim opposite to the notched rim cannot interfere with the openings and assembly bolts on the support. The invention also refers to an adaptation device for the assembly of the mini drawknife in a rotary support for tires roughing. This adaptation device comprises fixing sets integrated by bases and lateral retaining covers, among which intermediate separators can be placed; all these means have fixing members and openings which, in addition to forming jaws in the joint area, fasten to the roughing drawknives passing through some fastening openings of their body.
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