US3792599A - Transmission device for driving coaxial pinions, particularly for the synchronised driving of two needle beds of a circular knitting machine - Google Patents

Transmission device for driving coaxial pinions, particularly for the synchronised driving of two needle beds of a circular knitting machine Download PDF

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Publication number
US3792599A
US3792599A US00217525A US3792599DA US3792599A US 3792599 A US3792599 A US 3792599A US 00217525 A US00217525 A US 00217525A US 3792599D A US3792599D A US 3792599DA US 3792599 A US3792599 A US 3792599A
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United States
Prior art keywords
pinions
members
knitting machine
circular knitting
wedge
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Expired - Lifetime
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US00217525A
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English (en)
Inventor
N Bourgeois
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Etudes et Bonneterie SA
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Etudes et Bonneterie SA
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Application filed by Etudes et Bonneterie SA filed Critical Etudes et Bonneterie SA
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    • 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
    • D04B15/94—Driving-gear not otherwise provided for
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/1956—Adjustable

Definitions

  • At least one of the toothed crowns is provided with a helicoidal toothing, the corresponding pinion being axially movable to enable the obtention of a slight angular staggering between the respective teeth of the crowns associated with the two needle beds.
  • one of the pinions is caused, by means of an eccentric, to pivot about the control shaft whichcomprises a shoulder on which this pinion can be rigidly fixed.
  • This construction requires the use of numerous fixing screws so as to provide a maximal reduction of the possibilities of sliding,'which does not facilitate the operators task.
  • adjustment of the position of the pinion by means of an eccentric does not always enable the required precision to be achieved.
  • a transmission device for driving two coaxial pinions comprises two members coaxial to the pinions and each integral with a respective one of the pinion.
  • the members have two spaced-apart facing bearing surfaces lying in planesparallel to the axis of the members and pinions.
  • An intermediary wedge-shaped part having two non-parallel faces bears against and fits between the bearing surfaces.
  • Means are provided for securing the wedge-shaped part between the members in either one of two relatively inverted positions, in which two positions of the wedgeshaped part the relative angular disposition of the two pinions is different.
  • the two pinions of such a device may be respectively in driving relationship with a toothed crown integral with a respective one of two needle beds of a circular knitting machine.
  • the angle formed between the non-parallel faces of the wedge-shaped part is such that the different relative angular disposition of the pinions in the two positions of the wedge-shaped part corresponds to a displacement of the needles of one bed by half a spacing in the relation to the needles of the other bed.
  • FIG. 1 is a front elevational view of a first embodiment of device applied to a circular knitting machine with schematically represented vertical and horizontal needle beds;
  • FIG. 2 is a view similar to FIG. I showing the device in another position
  • FIGS. 3 and 4 are cross sectional views respectively taken along lines A-A and B-B of FIGS. 1 and 2;
  • FIG. 5 shows a second embodiment of device partially in cross section
  • FIG. 6 is a cross section taken along line C-C of FIG. 5.
  • the device shown in FIGS. 1 to 4 comprises two straight toothed pinions I and 2 coaxially arranged one above the other and respectively meshing with toothed crowns 3 and 4 integral with'two corresponding needle beds, a vertical needle bed 5 and a horizontal needle bed 6, carrying respective needles 7 and 8 in their grooves; the lower pinion 1 is rotatably driven by a com trol shaft 9 connected to a motor, not shown.
  • connection between the two coaxial pinions 1 and 2 is provided by means of two shaft sections ll0 and l I aligned with the shaft 9 and respectively fixed tothe pinions l and 2.
  • These shaft sections 10 and II are recessed at their inner cooperating ends so as to interfit whilst leaving therebetween, disposed about an axial plane, a space in which an intermediary wedge-shaped part 12 is inserted.
  • the two shaft sections and 11 and the part 12 are assembled by means of a schematically indicated screw 13.
  • the two inclined faces 14 and 15 of the wedge-shaped part 12 respectively come into engagement with facing surfaces 16 and 17 of the recesses at the ends of the shaft sections 10 and II.
  • the respective teeth of the pinions I and 2 are in alignment and the needles 7 and 8 of the two needle beds 5 and 6 are disposed alternately.
  • FIGS. 2 and 4 show the device after inverting the position of the part 12 by in relation to the position shown in FIG. 3, the inclined faces 14 and 15 of the part 12 this time respectively cooperating with the facing surfaces 17 and 16.
  • the respective teeth of the pinions 1 and 2 are slightly angularly staggered in relation to one another and beds, so that the needles 7 and 8 are disposed face to face.
  • the upper pinion 18 is provided on the base of a cylindrcal sleeve 19 which has a concentric housing 20 in which the upper part of a shaft 21 integral with the lower pinion 22 fits, a shoulder 23 of the housing coming to bear against the surface of a notch-like recess or shoulder provided at the end of the shaft 21.
  • the upper end part of the sleeve 19 also includes a housing accomodating a terminal part 24 of the shaft 21, whilst allowing a sufficient space on either side of an axial plane for the insertion of an intermediary wedge-shaped part 25.
  • the end of the sleeve 19, the intermediary part 25 and the terminal part 24 of the shaft 21 are securely assembled by means of a removable segment 27 of the sleeve 19 fixed thereon by means of two screws 28 and 29.
  • the intermediary part 25 comprises a protruding part 30 with an aperture 31.
  • the described device is easy to manoeuvre, practically impossible to deregulate during operation of the machine, economical to manufacture, and ensures an extremely precise adjustment.
  • a transmission element for driving said pinions comprises two members each coaxial and integral with a respective one of said pinions, said members having two 1 spaced-apart facing bearing surfaces lying in planes parallel to the axis of said members and pinions, an intermediary wedge-shaped part having two non-parallel faces bearing against and fitted between said bearing surfaces, and means for securing the wedge-shaped part between said members in either one of two relatively inverted positions, in which two positions of said wedge-shaped part the relative angular disposition of the two pinions is difierent.
  • a circular knitting machine in which said bearing surfaces are symmetrically spaced apart on eiether side of an axial plane of said members and pinions, said wedge-shaped part being invertable by a 180 displacement about said axial plane.
  • a circular knitting machine in which said two members are sections of a driving shaft with recessed interfitting'ends defining said bearing surfaces, said ends being disposed between the pinions.
  • a circular knitting machine in which said wedge-shaped part and said bearing surfaces are disposed outside said two pinions.
  • a circular knitting machine in which one of said members is a shaft section integral with one of the pinions and extending through an aperture in the other pinion, the other of said members being a sleeve section integral with said other pinion.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US00217525A 1971-01-26 1972-01-13 Transmission device for driving coaxial pinions, particularly for the synchronised driving of two needle beds of a circular knitting machine Expired - Lifetime US3792599A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH115771A CH522765A (fr) 1971-01-26 1971-01-26 Dispositif d'entraînement synchronisé de deux lits d'aiguilles d'un métier à tricoter circulaire

Publications (1)

Publication Number Publication Date
US3792599A true US3792599A (en) 1974-02-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00217525A Expired - Lifetime US3792599A (en) 1971-01-26 1972-01-13 Transmission device for driving coaxial pinions, particularly for the synchronised driving of two needle beds of a circular knitting machine

Country Status (6)

Country Link
US (1) US3792599A (fr)
CH (1) CH522765A (fr)
DE (1) DE2201356B2 (fr)
FR (1) FR2124032A5 (fr)
GB (1) GB1342146A (fr)
IT (1) IT955097B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412655B (de) * 2002-01-09 2005-05-25 Chen Tung Ko Transmissionseinrichtung für rundstrick- oder -wirkmaschinen
US20060169002A1 (en) * 2005-01-28 2006-08-03 Tiberio Lonati Control device of the dial in circular hosiery, knitting and similar machines

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1356092A (en) * 1919-08-22 1920-10-19 Scott & Williams Inc Timing-clutch for dial and cylinder knitting-machines
US1441123A (en) * 1923-01-02 Eobebt w
US2040021A (en) * 1935-10-09 1936-05-05 Scott & Williams Inc Dial timing mechanism for circular knitting machines
US2079298A (en) * 1931-08-22 1937-05-04 Nolde & Horst Co Automatic knitting machine for transferring from ribbed to plain knitting
US2461851A (en) * 1949-02-15 Frederick staples
GB636613A (en) * 1947-06-21 1950-05-03 Booton Ltd W Improvements in circular knitting machines of the dial and cylinder type
US2844014A (en) * 1954-04-07 1958-07-22 Moretta Giuseppe Drive transmission in circular hosiery and knitting machines with compensation of the wear in the gear teeth

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1441123A (en) * 1923-01-02 Eobebt w
US2461851A (en) * 1949-02-15 Frederick staples
US1356092A (en) * 1919-08-22 1920-10-19 Scott & Williams Inc Timing-clutch for dial and cylinder knitting-machines
US2079298A (en) * 1931-08-22 1937-05-04 Nolde & Horst Co Automatic knitting machine for transferring from ribbed to plain knitting
US2040021A (en) * 1935-10-09 1936-05-05 Scott & Williams Inc Dial timing mechanism for circular knitting machines
GB636613A (en) * 1947-06-21 1950-05-03 Booton Ltd W Improvements in circular knitting machines of the dial and cylinder type
US2844014A (en) * 1954-04-07 1958-07-22 Moretta Giuseppe Drive transmission in circular hosiery and knitting machines with compensation of the wear in the gear teeth

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412655B (de) * 2002-01-09 2005-05-25 Chen Tung Ko Transmissionseinrichtung für rundstrick- oder -wirkmaschinen
US20060169002A1 (en) * 2005-01-28 2006-08-03 Tiberio Lonati Control device of the dial in circular hosiery, knitting and similar machines

Also Published As

Publication number Publication date
DE2201356A1 (de) 1972-08-17
CH522765A (fr) 1972-06-30
IT955097B (it) 1973-09-29
DE2201356B2 (de) 1974-08-01
FR2124032A5 (fr) 1972-09-15
GB1342146A (en) 1973-12-25

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