| 摘要 |
A vibrating-blade knife comprising a body (1) and a blade (2) mounted in the said body. The blade is integral with an anvil (7) sliding in a cylinder (4) in which are disposed a movable piston (5), an axial duct (11) emerging into the cylinder on one side of the piston and a vent (6) emerging in the cylinder on the other side of the piston, means (18) being provided in order to supply the said axial duct with an alternative air pressure. <IMAGE> |
