| 摘要 |
A cutter for flexible tubing supported on a mandrel having a peripheral groove at the location of the intended cut has an annulus (10) coaxially surrounding the mandrel and arranged for rotation thereabout. A blade carrier (16) is pivoted on the annulus (10) for supporting a cutting blade (17) moveable between withdrawn and cutting positions. The carrier (16) has an armature including a permanent magnet (19) which is arranged between one of the electromagnets but may be moved to the other electromagnet by an appropriate pulse of electrical energy to the other electromagnet. |
