Electromagnetic needle selection device for circular knitting machine

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EP 0 395 383 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	26.02.1992 Bulletin 1992/09

(43)	Date of publication A2:
	31.10.1990 Bulletin 1990/44

(21)	Application number: 90304459.2

(22)	Date of filing: 25.04.1990

(51)	International Patent Classification (IPC)⁵: D04B 15/78

(84)	Designated Contracting States:
	DE ES GB IT

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Priority:

25.04.1989 JP 106935/89

(71)	Applicant: PRECISION FUKUHARA WORKS, LTD
	Higashi-nada-ku Kobe Hyogo (JP)

(72)	Inventor:
	Yorisue, Shozo Kobe Hyogo (JP)

(74)	Representative: Warren, Keith Stanley et al
	BARON & WARREN 18 South End Kensington London W8 5BU London W8 5BU (GB)

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References cited: :

(54)	Electromagnetic needle selection device for circular knitting machine

(57) Each yarn feeding and knitting station of the knitting machine is provided with an electromagnetic needle selection device so that the selection of knitting, tucking or welting of the needles is provided at each yarn feeding and knitting station thereby permitting the full range of pattern knitting at each yarn feeding and knitting station. A needle cylinder (1) is provided with grooves supporting knitting needles (2) and a rocking jack supporting cylinder (9) supporting first and second sets of rocking jacks (13, 14) is positioned beneath and in coaxial relationship with the needle cylinder (1). The rocking jack supporting cylinder (9) is of larger diameter than the needle cylinder and a right angle control lever (10) is positioned for rocking movement at the juncture of the smaller needle cylinder (1) and the larger rocking jack supporting cylinder (9). A spring jack (3) is retained below each needle (2) and includes a selecting butt for movement into and out of engagement with spring jack cams (6). First and second electromagnetic needle selection units (A and B) are positioned at each of the yarn feeding and knitting stations and adjacent the rocking jack supporting cylinder (9) and are operable for selectively imparting swinging movements to the rocking jacks (13, 14) so that the corresponding needles (2) may be selected for knitting, tucking or welting at each yarn feeding and knitting station.

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