EP 0288700 B1 19910703 - DEVICE FOR ADVANCING AND ORIENTATING SHEETS IN SHEET-PROCESSING MACHINES
Title (en)
DEVICE FOR ADVANCING AND ORIENTATING SHEETS IN SHEET-PROCESSING MACHINES
Publication
Application
Priority
- DE 3710259 A 19870328
- DE 3804576 A 19880213
Abstract (en)
[origin: JPS641544A] PURPOSE: To convey and align a sheet in a sheet-processing printing machine with at least one frictionally driven ball supported so that it is rotary in all directions, and at least two frictional-force transmission sections located at the periphery of the ball and disposed at 90 deg. from one another. CONSTITUTION: The device 7 has two boxy low-pressure chambers 8, 9 on the same height. In the chambers 8, 9, a ball 18 is supported by four ball bearings 19-22 on a spherical surface so that it is rotatable in all directions at the fixed center M. It is frictionally driven by two frictional-force transmissions 30, 31 located at the periphery of the ball and disposed at 90 deg.C from one another. The transmissions 30, 31 have friction wheels 32, 33 driven by a motor. The edge of a sheet A is detected by a scanner 38 to start the transmissions 30, 31. The sheet A is forced in a slant direction to be aligned correctly by the ball 18 is driven to the direction 34 deg. slanted from the sheet feeding direction x when the wheels 32, 33 rotates at the same speed.
IPC 1-7
IPC 8 full level
B41F 21/12 (2006.01); B41F 21/14 (2006.01); B65H 9/00 (2006.01); B65H 9/10 (2006.01); B65H 9/16 (2006.01)
CPC (source: EP US)
B41F 21/12 (2013.01 - EP US); B41F 21/14 (2013.01 - EP US); B65H 9/105 (2013.01 - EP US); B65H 9/166 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI SE
DOCDB simple family (publication)
DE 3804576 A1 19881006; AU 1338088 A 19880929; AU 604861 B2 19910103; CN 88101442 A 19881012; DE 3863471 D1 19910808; EP 0288700 A1 19881102; EP 0288700 B1 19910703; JP S641544 A 19890105; US 4887810 A 19891219
DOCDB simple family (application)
DE 3804576 A 19880213; AU 1338088 A 19880322; CN 88101442 A 19880325; DE 3863471 T 19880310; EP 88103791 A 19880310; JP 7216388 A 19880328; US 17408888 A 19880328