Title:
CUTTING KNIFE BEAM FOR PAPER CUTTING CYLINDER IN FOLDING DEVICE FOR WEB ROTARY PRESS
Document Type and Number:
Japanese Patent JP2716681
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an improved cutting knife beam for a paper cutting cylinder in a folding device for a web rotary press for supporting a cutting knife in a vibration damping manner in the peripheral direction of a paper cutting cylinder and avoiding tear and burst caused in the outer layer of a fold allowance by a piercing needle.
SOLUTION: Forcible contact shaping bars 4, 6 are formed of synthetic rubber having a finely foamed structure. The synthetic rubber has an elastic modulus of about 50 N/mm2-1,000 N/mm2 and a Shore A hardness of about 10-30 and the ratio h2:f of the height h2 of each of the forcible contact shaping bars 4, 6 to the spring stroke (f) of the forcible contact shaping bar is 8-15.
Inventors:
Horst Bernhard Michael
Oswald Josef Fate
Oswald Josef Fate
Application Number:
JP17377795A
Publication Date:
February 18, 1998
Filing Date:
July 10, 1995
Export Citation:
Assignee:
Königsund Bower-Albert Aktien Gezershaft
International Classes:
B26D1/40; B26D7/26; B41F13/60; B65H45/28; (IPC1-7): B26D1/40; B41F13/60; B65H45/28
Domestic Patent References:
| JP5751654A | ||||
| JP344506Y1 |
Attorney, Agent or Firm:
Toshio Yano (2 outside)