| 摘要 |
The present invention relates to a sheet cutting apparatus comprising a body; a lower blade provided with a cutting edge and supported on the body; an upper blade provided with a cutting edge and mounted on the body by connecting means so as to be scissorwise movable with respect to the lower blade; as well as support means supported adjacent to the cutting edge of the lower blade below the upper blade. The support means comprises a support plate mounted upon the support means by means of at least three pre-stressed springs fitted along the support means. The springs may be pre-stressed between support plate and support means by means of pull rods. The support means is preferably provided with a power unit for moving the support means upwards and downwards.
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