Cutting machine
US5408908A · kind A · utility
Inventors
Key dates
| Filing date | Sep 14, 1993 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Sep 14, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9447
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cutting machine for sheet material comprising a frame, a stationary knife on the frame and a reciprocating blade cooperating with the stationary knife. A motor on the frame is connected to a gear reducer that is in turn connected to a single push rod through a crank. The push rod is operatively connected to a torque tube that is connected adjacent its ends by link means to the reciprocating blade. Rotation of the crank by the gear reducer will actuate the single push rod and the torque tube operatively connected thereto to reciprocate the reciprocating blade. Spring means for assisting movement of the reciprocating blade are readily adjusted from exterior of the frame of the cutting machine. A rotatable cam follower on the reciprocating blade engages a guide block on the frame for moving the reciprocating blade into proper cooperative engagement with the stationary knife in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.