EP 0329172 A2 19890823 - Web perforating apparatus.
Title (en)
Web perforating apparatus.
Title (de)
Vorrichtung zum Perforieren von Bahnen.
Title (fr)
Appareil de perforation de bande.
Publication
Application
Priority
JP 3465088 A 19880217
Abstract (en)
A web perforating apparatus for making holes (11A) through a web (11) along its longitudinal direction comprises a die set (10) composed of a die (30) having die cavities (53) and punches (35), which die and punches are connected together so that they are brought to positions close to but spaced apart from each other through guide members (38) extending in the direction normal to the surface of the web. The die set (10) is provided with a stripper (40) between the die and the punches. The stripper (40) is held so that it is moveable in the direction parallel to the guide members and holds the web (11) when the punches are pulled out of the die cavities. The stripper is provided with punch guide through holes (44), through which the punches are inserted and which each have a size adapted for a very close tolerance fit with each punch.
IPC 1-7
IPC 8 full level
B26D 7/18 (2006.01); B26F 1/00 (2006.01); B26F 1/02 (2006.01)
CPC (source: EP)
B26D 7/18 (2013.01); B26F 1/0007 (2013.01); B26F 1/02 (2013.01)
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
EP 0329172 A2 19890823; EP 0329172 A3 19900829; JP H01210299 A 19890823
DOCDB simple family (application)
EP 89102792 A 19890217; JP 3465088 A 19880217