Title:
KNITTING PARTS OF KNITTING MACHINE
Document Type and Number:
WIPO Patent Application WO/1994/023105
Kind Code:
A1
Abstract:
In knitting parts (a guide, needle, tong, sinker, separator and platine) of a knitting machine, a coat comprising a hard carbon film (15) having a set film thickness (d) is formed on a surface of that portion of a part base material (10), which portion frequently contacts a knitting yarn, and a film thickness changing region (16), in which the film thickness of the hard carbon film is gradually reduced, is formed to extend from a region, in which the coat comprising the hard carbon film (15) having the set thickness of film (d) is formed, to a region, in which the coat is not formed. A ratio (L/d) of a length L of the film thickness changing region (16) in a direction, along which the film thickness changes, to the set film thickness (d) of the hard carbon film (15) is equal to or more than 5. Accordingly, knitting parts of a knitting machine are markedly improved in durability and are good in productivity, and an advantageous knitting productivity free of fluff and thread breakage is provided to eliminate fluff and thread breakage.
Inventors:
NANYA TAKANORI (JP)
Application Number:
PCT/JP1994/000566
Publication Date:
October 13, 1994
Filing Date:
April 05, 1994
Export Citation:
Assignee:
CITIZEN WATCH CO LTD (JP)
NANYA TAKANORI (JP)
NANYA TAKANORI (JP)
International Classes:
D03D49/62; D04B15/06; D04B15/48; D03D47/30; D04B27/04; D04B35/02; (IPC1-7): D04B15/54; D04B35/02
Foreign References:
| JPS6228452A | 1987-02-06 | |||
| JPS5831141A | 1983-02-23 | |||
| JPS61186558A | 1986-08-20 |
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