| 摘要 |
A tube cutter having a relative movement generating portion is disclosed. It includes a relative movement generating portion, a tube cutting base and a tube cutting slider. The manual input portion of the relative movement generating portion is easy to be held by user's hand. A cutting blade, two auxiliary rollers and a feeding spring are disposed between the tube cutting base and the tube cutting slider. After the user applying a holding force, the pushing plate will compress the spring in the tube cutting slider so that the cutting blade feeds in. In case the applying force is too large, the entire tube cutting base and the cutting slider will be locked via the stopping plate. So, it can avoid any over-applying force to destroy the pipe to be cut. This invention is easy to clamp the pipe tightly. It can avoid the over-applying force. It can automatically feed in. And, it can feed in by holding force of hand.
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