D - Textiles – Paper – 04 – B
Patent
D - Textiles, Paper
04
B
66/31
D04B 15/32 (2006.01) D04B 15/06 (2006.01) D04B 15/34 (2006.01)
Patent
CA 1054389
ABSTRACT OF THE DISCLOSURE The present invention relates to sinker cam seg- ments used in circular knitting machines of the type used in the manufacture of deep pile fabric. It is common to make the sinker cams in arcuate segments for convenience in installation, and particularly for economy in the replace- ment of parts which experience the greatest wear in use. The individual segments are attached to the cam ring by pins and screws. The problem in the prior art to which the present invention addresses itself is that of sinker wear. In accordance with the present invention, the seg- ments of the cam are beveled at their ends, in such a way that the sinkers, which lie in planes passing through the center line of the cam ring will not encounter axial lines of intersection in the axially extending surfaces which they engage, nor radial lines of intersection in the radial surfaces which they engage. This is accomplished by forming the ends of the cam segments at a compound angle, so that the end surfaces are in a plane having no elements which are either radial or axial, with reference to the center line of the cam ring. A further aspect of the inven- tion consists of arranging the beveled end in such a way that the inside corner of a sinker at the butt passes over obtuse angles on the cam, on both running surfaces, as it arrives at the segment.
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