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Title:
APPARATUS FOR NEEDLE PUNCHING FIBER WEB
Document Type and Number:
Japanese Patent JPH04228668
Kind Code:
A
Abstract:

PURPOSE: To uniformly needle punch a fiber web at different pitches without a need for replacing a needle board, a stripping plate or a perforate backing plate.

CONSTITUTION: In this apparatus for needle punching a fiber web, in at least one needle board provided with a hole for receiving a needle row and a perforate backing plate opposed to the needle board or a perforate stripping plate arranged between the needle board and the backing plate, for example, holes of the stripping plate 5 are arranged in at least two groups of hole rows 6 and 7. At least two groups of the hole rows 6 and 7 are uniformly distributed over the working width in the passage direction of the fiber web. The hole rows 6 and 7 are made to have hole pitches mutually coincident in the working width and the hole pitches are mutually shifted by a size obtained by dividing the hole pitches by the number of the groups to use a needle of different pitches.


Inventors:
Feyerl, Guenther
Koenig, Franz
Application Number:
JP1991000072635
Publication Date:
August 18, 1992
Filing Date:
January 17, 1991
Export Citation:
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Assignee:
TEXTIL MAS FAB DR ERNST FEHRER AG
International Classes:
D04H18/02; (IPC1-7): D04H18/00
Domestic Patent References:
JPS6039100A
JPS515581U
JPS6152263A



 
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