Patent · US Expired

Device for detecting edges of sheet-shaped materials

US7106458B2 · kind B2 · utility

1Cited by

9References

22Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Konrad Langbein · Owen, DE
Jochen Graeber · Bissingen, DE
Hartwig Huelz · Seligenstadt, DE

Key dates

Filing date	Dec 13, 2002
Grant date	Sep 12, 2006
Priority date	—
Expiry date	Apr 25, 2024

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65H2701/1712
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A device for detecting edges of sheet-shaped print materials (1), especially of transparencies, that are moved along a transport path through a sheet-processing machine has a beam transmitter (31) and a beam receiver (32), whereby beam transmitter (31) and beam receiver (32) are mounted on different sides of the transport path in such a way that the beam path forms an acute angle to the surface of the sheet-shaped print material (1). Electronics (36) evaluate the beam received at the beam receiver (32), whereby the beam receiver (32) is at a lesser distance to the transport path in comparison to the beam transmitter (31).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.