| 摘要 |
The invention relates to a device allowing the fastening of interchangeable blades on wood machine tool-holders, using a triple- safety expansible wedge. It is composed of a body 1 connected by bonding a flexible block 2 to a wedge 3. With a screw 4 passing through the wedge 5, the block 2, comes to be screwed into the wedge 6, giving rise to a compression of the wedges 5 and 6, which, by sliding of their slopes tangential to the body 1 and to the wedge 3, produce the expansion. The body 1, which is wider at its base, is equipped with pins 15 securing the blade 16, the assembly engages into the housing 17 where the piston 8, by penetrating into the slot 7, locks it. The device according to the invention is particularly intended for fixing interchangeable blades on wood machine tool-holders. <IMAGE>
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