Finisher with a punching function

Details Finisher with a punching function Finisher with a punching function

1997-06-10

2000-05-23

Rachuba, M.

Cutting

Processes

Puncturing

83357, 83368, 83618, 83628, B26F 124

Patent

active

060653795

ABSTRACT:
A finisher provided with a punching unit which punches a sheet. The punching unit has five punching rods, a drive shaft which rotates to drive the punching rods, five pairs of circular cam and eccentric cam which are fitted around the drive shaft and a switching board which moves the drive shaft in its axial direction reciprocally at a specified pitch. With a one-pitch movement of the drive shaft in its axial direction, three of the five punching rods (in a three-hole mode) or two of the five (in a two-hole mode) come into contact with the respective eccentric cams, and the three rods or the two rods are moved to make three holes or two holes in a sheet. The selection between the three-hole mode and the two-hole mode is automatically carried out in accordance with the sheet size.

REFERENCES:
patent: 5229812 (1993-07-01), Toyama et al.

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