US3877257A - Annular cam boxes of circular knitting machines - Google Patents

Annular cam boxes of circular knitting machines Download PDF

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Publication number
US3877257A
US3877257A US417506A US41750673A US3877257A US 3877257 A US3877257 A US 3877257A US 417506 A US417506 A US 417506A US 41750673 A US41750673 A US 41750673A US 3877257 A US3877257 A US 3877257A
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US
United States
Prior art keywords
cams
annular cam
base ring
support members
cam box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US417506A
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English (en)
Inventor
Jose Maria Dalmau Guell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jumberca SA
Original Assignee
Jumberca SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ES408793A external-priority patent/ES408793A1/es
Priority claimed from ES408792A external-priority patent/ES408792A1/es
Application filed by Jumberca SA filed Critical Jumberca SA
Application granted granted Critical
Publication of US3877257A publication Critical patent/US3877257A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • D04B15/327—Cam systems or assemblies for operating knitting instruments for stitch-length regulation

Definitions

  • the present invention relates to improvements in annular cam boxes for circular knitting machines.
  • annular cam boxes have two operative regions, a lower region having cams actuating the selector jacks and an upper region having cams actuating the selected needles.
  • each of said regions is constituted by a base ring and a plurality of column type cam carrying support members which are indepcndent, one from another, and are demountably attached equidistantly around the periphery of said base ring.
  • the cams of an annular cam box arrangement actuating the selected needles are secured to vertically movable slide members mounted to the support members of the upper operative region secured to the corresponding base ring of said annular cam box.
  • each support member being provided with a manually operable screw pressing on said slide member to counteract the effect of a tension spring so that when the screw is suitably adjusted the corresponding cam set is adjusted at a convenient height within the annular cam box thereby causing the needles actuated by said cams to knit shorter or longer stitches.
  • the cams in an annular cam box arrangement actuating the selector jacks are secured to columns forming part of the lower operative region support members.
  • the cams are formed by flat plates.
  • FIG. 1 shows diagrammatically and partly in cross section a fragment of an annular cam box arrangement according to the invention
  • FIG. 2 shows diagrammatically and in developed form a fragment of the annular cam box arrangement of the previous Figure
  • FIG. 3 is a cross sectional view on a larger scale of a support member of the upper operative region of the annular cam box arrangement of FIG. 1'.
  • FIG. 4 is an enlarged sectional view taken along the line lV-IV of FIG. 2 ofa lower support member of the annular cam box arrangement of FIG. 1.
  • the annular cam box 1 comprises a lower ring 2 and an upper ring 3, on which there are mounted, respectively, lower support members 4 and upper support members 5.
  • Cams 6 for operating selector jacks 7 through butts 8 for selecting needles 9 are mounted to the lower support members 4.
  • Cams l0 and 11 for controlling said needles 9 through butts 12 are mounted to said upper support members 5.
  • the lower support members 4. comprise a column member 13 and a base 14. Said cams 6- are secured to said column member 13 with screws 15 while said base 14 is secured to the lower ring 2 by screw 16.
  • Said upper support members 5 comprise a casing 17 and a slide member 18 capable of sliding movement in said casing 17.
  • Said casing 17 is secured to the upper ring 3 by a screw 19, while cams l0 and 11 are secured with screws 20 to slide member 18.
  • Screw 21 is locked in position by a latch member 26 applied against the fingerwheel 22 and a clamping screw 27 applied radially against the threaded shank of screw 21.
  • Latch member 26 is housed in bore 28 of casing 17.
  • the lower ring 2 is attached to upper ring 3 by conventional columnar members 29 while other columnar members 30 attach the upper ring 3 to other elements of the knitting machine.
  • the lower and upper support members 4, 5 are separate members mounted at equidistant intervals around their respective base rings 2 and 3, whereby they constitute the operative regions of the annular cam box in substitution of the conventional curved segments.
  • cams 6, 10 and 11 facilitates their machining, in contrast with conventional arcuate faced cams.
  • each of said operative regions comprising a base ring and a'plurality of column type cam carrying support members independent from one another and demountably attached to suitably adjusted the corresponding cam set is adjusted at a convenient height within said annular cam box thereby causing said needles actuated by said cams to knit shorter or longer stitches.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US417506A 1972-11-20 1973-11-20 Annular cam boxes of circular knitting machines Expired - Lifetime US3877257A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES408793A ES408793A1 (es) 1972-11-20 1972-11-20 Perfeccionamientos en los sistemas para regulacion del pun-to en telares circulares.
ES408792A ES408792A1 (es) 1972-11-20 1972-11-20 Perfeccionamientos en los telares para genero de punto.

Publications (1)

Publication Number Publication Date
US3877257A true US3877257A (en) 1975-04-15

Family

ID=26155851

Family Applications (1)

Application Number Title Priority Date Filing Date
US417506A Expired - Lifetime US3877257A (en) 1972-11-20 1973-11-20 Annular cam boxes of circular knitting machines

Country Status (6)

Country Link
US (1) US3877257A (enrdf_load_stackoverflow)
BR (1) BR7309053D0 (enrdf_load_stackoverflow)
DE (1) DE2357697A1 (enrdf_load_stackoverflow)
FR (1) FR2211015A5 (enrdf_load_stackoverflow)
GB (1) GB1419159A (enrdf_load_stackoverflow)
IT (1) IT1000967B (enrdf_load_stackoverflow)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3013418A (en) * 1958-12-19 1961-12-19 Wildman Jacquard Co Cam means for knitting machine
US3405542A (en) * 1965-12-08 1968-10-15 Singer Co Cam apparatus for independent needle knitting machines
US3590599A (en) * 1969-02-06 1971-07-06 Telares Circulares Circular knitting machine
US3614877A (en) * 1969-03-14 1971-10-26 Monarch International Ltd Compound stitch cam for knitting machines
US3696640A (en) * 1970-01-21 1972-10-10 Precision Fukuhara Works Ltd Variable needle selecting means for knitting machines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3013418A (en) * 1958-12-19 1961-12-19 Wildman Jacquard Co Cam means for knitting machine
US3405542A (en) * 1965-12-08 1968-10-15 Singer Co Cam apparatus for independent needle knitting machines
US3590599A (en) * 1969-02-06 1971-07-06 Telares Circulares Circular knitting machine
US3614877A (en) * 1969-03-14 1971-10-26 Monarch International Ltd Compound stitch cam for knitting machines
US3696640A (en) * 1970-01-21 1972-10-10 Precision Fukuhara Works Ltd Variable needle selecting means for knitting machines

Also Published As

Publication number Publication date
FR2211015A5 (enrdf_load_stackoverflow) 1974-07-12
IT1000967B (it) 1976-04-10
GB1419159A (en) 1975-12-24
DE2357697A1 (de) 1974-05-22
BR7309053D0 (pt) 1974-09-05

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