Global Patent Index - EP 0556486 B1

EP 0556486 B1 19960306 - Double sheet detector

Title (en)

Double sheet detector

Title (de)

Doppelbogenerkennung

Title (fr)

Détecteur de double feuille

Publication

EP 0556486 B1 19960306 (DE)

Application

EP 92122138 A 19921230

Priority

  • CH 51092 A 19920219
  • CH 210592 A 19920703

Abstract (en)

[origin: EP0556486A1] A device according to the invention is mounted above a support (30) on which printed products are conveyed in the form of an imbricated stream (31). With the aid of said device according to the invention, the surface of the imbricated stream is sensed at two measuring points (M.1 and M.2) at a distance from one another in the conveying direction. During this, according to the process according to the invention, the difference in level of the imbricated stream surface between the two measuring points is recorded as a measurement signal and used for detecting fault locations in the imbricated stream. This difference in level is high when a product edge is located between the two measuring points and small when the two measuring points are located on the same product. The difference in level is always independent of the thickness of the entire imbricated stream. The device according to the invention has, for example, two sensing rolls (11, 21) which roll on the imbricated stream surface, the first sensing roll (11) being fixed on a pivotably arranged arm (13), the second sensing roll (21) being fixed on a lever (23) which, for its part, is pivotably arranged on the arm (13) and the pivoting-out of the lever (23) being measured by means of sensors. <IMAGE>

IPC 1-7

B65H 7/02; B65H 5/24

IPC 8 full level

B41F 33/14 (2006.01); B65B 35/00 (2006.01); B65G 43/08 (2006.01); B65H 5/24 (2006.01); B65H 7/02 (2006.01); B65H 7/04 (2006.01); B65H 7/06 (2006.01); B65H 7/08 (2006.01); B65H 7/12 (2006.01); B65H 7/14 (2006.01); B65H 43/04 (2006.01)

CPC (source: EP US)

B65H 5/24 (2013.01 - EP US); B65H 7/02 (2013.01 - EP US); B65H 7/04 (2013.01 - EP US); B65H 7/08 (2013.01 - EP US); B65H 7/12 (2013.01 - EP US); B65H 7/14 (2013.01 - EP US); B65H 2511/20 (2013.01 - EP US); B65H 2511/212 (2013.01 - EP US); B65H 2511/514 (2013.01 - EP US); B65H 2511/52 (2013.01 - EP US); B65H 2511/524 (2013.01 - EP US); B65H 2515/60 (2013.01 - EP US); B65H 2553/41 (2013.01 - EP US); B65H 2553/61 (2013.01 - EP US); B65H 2701/1311 (2013.01 - EP US); B65H 2701/1313 (2013.01 - EP US)

C-Set (source: EP US)

  1. B65H 2511/212 + B65H 2220/01 + B65H 2220/11
  2. B65H 2511/52 + B65H 2220/03
  3. B65H 2515/60 + B65H 2220/01
  4. B65H 2701/1311 + B65H 2220/01
  5. B65H 2701/1313 + B65H 2220/02
  6. B65H 2511/212 + B65H 2220/01
  7. B65H 2511/524 + B65H 2220/03
  8. B65H 2511/20 + B65H 2220/03

Citation (examination)

PATENT ABSTRACTS OF JAPAN vol. 13, no. 373 (M-861)(3721) 18. August 1989 18 August 1989 & JP-A-1127543 (HITACHI LTD) 19 Mai 1989

Designated contracting state (EPC)

AT CH DE ES FR GB IT LI SE

DOCDB simple family (publication)

EP 0556486 A1 19930825; EP 0556486 B1 19960306; AT E134973 T1 19960315; DE 59205602 D1 19960411; ES 2084260 T3 19960501; FI 106627 B 20010315; FI 930689 A0 19930217; FI 930689 A 19930820; JP 2766152 B2 19980618; JP H0672627 A 19940315; US 5356130 A 19941018

DOCDB simple family (application)

EP 92122138 A 19921230; AT 92122138 T 19921230; DE 59205602 T 19921230; ES 92122138 T 19921230; FI 930689 A 19930217; JP 3062593 A 19930219; US 1882693 A 19930218