US3103110A - Two-bed hand-knitting apparatus - Google Patents

Two-bed hand-knitting apparatus Download PDF

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Publication number
US3103110A
US3103110A US806532A US80653259A US3103110A US 3103110 A US3103110 A US 3103110A US 806532 A US806532 A US 806532A US 80653259 A US80653259 A US 80653259A US 3103110 A US3103110 A US 3103110A
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United States
Prior art keywords
cam box
needle
pawls
pawl
cam
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Expired - Lifetime
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US806532A
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English (en)
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Erb Ernst
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Superba SAS
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Superba SAS
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B7/00—Flat-bed knitting machines with independently-movable needles
    • D04B7/08—Flat-bed knitting machines with independently-movable needles for domestic use
    • 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
    • D04B15/36—Cam systems or assemblies for operating knitting instruments for flat-bed knitting machines

Definitions

  • the invention therefore has for object to provide a two-bed hand-knitting apparatus having a toolproof cam box settable in the simplest manner for the various knitting patterns.
  • the cam box can have for example a number of press keys by means of which it can be set for the production of the various knitted patterns.
  • These press keys have associated with them a common shift bar, which ensures that when one key is actuated for the production of a certain knitted pattern, the position of the key and parts connected therewith, which were previously actuated for the production of a diflerent pattern, is automatically cancelled.
  • the person operating the apparatus can set the cam box in this manner by operating one press key in such a way that on knitting there is produced the knitted pattern which corresponds to the key depressed. Thus this person is able, without great reflection, to select one or other pattern by pressing one or other key.
  • the invention relates to a cam box 'for a two-bed hand-knitting apparatus, with two needle-control elements inclined in relation to one another and movably arranged on the rear of a cam box plate, between which elements an upper needle-sinker member is secured on the cam box plate and a needle-lifting member is secured outside them in each case.
  • each needle-control element has a rocking lever pivotably mounted at its lower end, carrying a needle-control pawl, the upper edge of which is curved for lifting the needles and the lower edge of which is curved :Sor needle-sinking, and in that with the rocking ievers of the two needle-control elements there is associated a cam-setting device arranged on the front of the cam box plate, having a number of stop pins which can be advanced at will, according to the desired pattern, through holes provided for them in the cam box plate, into the range of movement of the rocking levers, in order to limit their movement in a corresponding manher.
  • FIGURE 1 is a plan view of the cam box of the front needle-bed of the two-bed hand-knitting apparatus.
  • FIGURE 2 is a similar plan view, illustrated on a larger scale, of this cam box, with the cam-box housing removed.
  • FIGURE 3 is a view of the under side of the cam box.
  • FIGURE 4 is a cross-section along the line IVIV in FIGURE 2.
  • FIGURES 5, 5a, 6, 6a and 7, 7a show various positions of the cam box for the knitting of various knitted patterns.
  • FIGURE 8 is a partially sectional lateral elevation of a modified cam-setting device
  • FIGURE 9 is a view of the rear of this device, in combination with certain parts of the cam box.
  • the cam box according to FIGURES 1-4 is intended for a hand-knitting apparatus having two needle beds 1 inclined in relation to one another, of which only the forward needle bed is visible in FIGURE 1.
  • Each cam box possesses a cam box plate 5 and behind this, as shown in FIGURE 3, two flat rocking levers 6 inclined in relation to one another are arranged at a certain distance from one another; these levers bear against the cam box plate 5 and are each provided at their lower end parts with a peg 7, the two pegs 7 en gaging in two oblique guide slots 8 provided in the cam box plate 5 and inclined towards opposite ends of the cam box plate.
  • the nose-shaped lower ends 6a of the two rocking levers 6 are inclined towards one another and connected together by means of a tension spring 9, being held by the latter in a position rocked upwards about their pegs 7, in which position their upper, pointed ends rest against an upper longitudinal flange 10 upon the cam box plate 5.
  • a needle-control pawl 12 On each of the two rocking levers 6, and at a slight distance therefrom, there is secured, as by means of short pins 11, a needle-control pawl 12, of which the upwardly facing edge is curved for needle-lifting and the downwardly facing edge is curved for needle-sinking.
  • the curved port-ions 12a and 12b serve to impart a more gradual rate of lift and of sinking as the needle control pawls initially engage the needles.
  • a trapezoidal plate 13 In the middle, between the two upper pointed ends of the two needle-control pawls 12, there is secured on the cam box plate 5 a trapezoidal plate 13, forming a stationary needle-sinker, which rests with the longer of its parallel sides on the longitudinal rib 10 of the cam box plate.
  • each of the two rocking levers 6 there is mounted on the cam box plate 5 at a distance therefrom corresponding .to the thickness of the rocking levers 6, a disc 15 engaging over the respective rocking lever, which are each provided on the upper edge with a recess 6b in order not to hinder the pivoting movements. Due to these discs 16 and to the fact that the lower ends 6a of the rocking levers 6 extend through slots provided in the lower longitudinal flange 15 of the cam box plate 5, these rocking levers are held so as to bear in fiat contact with the cam box plate 5, in every position.
  • cam-setting device arranged on the front. of the cam box plate (see FIGURE 2); this device renders it possible to set the knitting apparatus by limiting the range of movement of the rocking levers 6 or of the needle-control pawls 12 arranged thereon, for the execution of various knitted fabrics or of knitted fabrics with various patterns.
  • This cam-setting device comprises, for each of the two needle beds 1, a row of press keys arranged between the two needle beds and extending from bottom to top; the keys 18, 19, 20 and 21 (see FIGURES l and 4) are hollow and their upper ends extend out through a traverse aperture 3a in the housing 3. On the under side of each press key, there is secured a plate 18a, 19a, 20a, 21a respectively, each provided with a transverse slot.
  • a transverse bar 22 of flat shape upon which there are arranged four pins extending into the press keys and serving as guides .therefor and around each of these pins there is coiled a compression spring holding the keys in their disengaged position, only the springs 20b and 2112 being visible in FIGURE 4.
  • a longitudinally slidable key-locking element 23 provided with four tooth-like projections 23a, 23b, 23c and 23d, of which the outermost ends engage in the slots of the key plates 18a, 19a, 20a and 21a.
  • the plates 18a, 19a, 20a and 21a secured on the under side of the press keys are of different constructions.
  • the plate 21a is rectangular, and corresponds to the crosssection of the key 21 to which it is secured.
  • the plate 20a possesses two lateral lugs at opposite ends (see FIGURE 2), carrying stop pins 25 situated at the same level.
  • the plate 19a is provided only on its left-hand end with a somewhat longer lug, upon which again there is fixed a'stop pin 26.
  • the plate 18a is in turn provided at its opposite ends with two unequal lugs on each of which there is provided a stop pin 27, the right-hand pin lying at a higher level than the left-hand pin.
  • cam box plate 5 For all these stop pins, there are provided appropriate holes in the cam box plate 5, through which they extend when the keys are depressed, thus projecting into the range of movement of the rocking levels 6.
  • the cam box can be set for the knitting of a specific pattern, which will be explained in greater detail hereinafter with reference to FIGURES 5, 5a, FIGURES 6, 6a and FIGURES 7, 7a.
  • FIGURES 5 and 5a there are illustrated the conditions arising when the key 20 is depressed. Then the .two stop pins 25', situated at the same level, extend through the cam box plate 5 into the range of the two rocking levers 6. For the purpose of knitting, the cam box is moved first to the right (see arrow in FIGURE 5).
  • the needles of the needle bed of which for the sake of simplicity only the needle butts are indicated by short thick strokes, run through the cam box as shown, first coming into contact with the needle-lifting curved edge of the right-hand needle-control pawl 12, the rocking lever 6 of which thereby carries out a pivotal movement about its peg 7, limited by the righthand stop pin 25.
  • the needles are then depressed by the stationary needle-sinker 13 and by the needle-sinking curved edge of the left-hand needle-control pawl 12, resting with its upper end against the upper flange 10 of the cam box plate 5.
  • the needles are first lifted by the left-hand control pawl 12, which is rocked as far as the right-hand stop pin 25, and then depressed by the stationary needle-sinker 13 and by the upper end of the right-hand needle-control pawl 12. If in this knitting operation, only one of the two needle beds is used, plain knitted fabric is produced, whereas if the two needle beds are used, ribbed fabric is produced.
  • the zeroizing key 21 is depressed, whereby the springcontrolled key 20 is released for return into its initial position. According to choice, then the key 18 or 19 can be depressed for the production of a different type of knitting.
  • FIGURES 6 and 6a illustrate the conditions when the key 19 is depressed.
  • the stop pin 26 extends into the range of movement of the left-hand rocking lever 6, while the right-hand rocking lever 6 can swing without hindrance between the two longitudinal flanges 10 and 15 of the cam box plate 5.
  • the needles run through the cam box in a similar manner to that explained above with reference to FIGURES 5 and 5a; thus in the reciprocating motion of .the cam box, first the left-hand rocking lever 6 rocks with its needle-control pawl 12 as far as the stop pin 26, and the next time the right-hand rocking lever 6 rocks with its needlecontrol pawl as far as .the lower flange 15. If the key 19 of the rear cam box is also depressed, the apparatus is set for circular knitting.
  • FIGURES 8 and 9 illustrate a modification of the camsetting device according to FIGURE 4.
  • a rotatable knob 36 is provided, having on its inner face a projection 36a constructed as a cam track, by means of which, in a manner similar to that of the device according to FIGURE 4, spring-influence stop pins 37, 33 can be pushed forward through holes 5c provided in the cam box plate 5, in order by means of these pins to limit more or less the range of pivoting of the rocking levers 6, according to the pattern desired.
  • a needle control device for a hand-operated knitting apparatus having two beds of needles comprising a cam box reciprocable along said beds for controlling the needles thereof, a needle sinker secured upon said cam box, a needle lifter secured upon said cam box on each side of that needle sinker, a pair of pawls inclined at opposite angles to one another one arranged between said needle sinker and each of said needle lifters, said pawls being ro'ckably mounted in said cam box, a pawl-setting device arranged on said cam box, and means connecting said pawl-setting device to said pawls for determining the range of rocking motion of said pawls in accordance with a selected knitting pattern, said pawl-setting device including a plurality of keys operable selectively for determining the range of rocking motion of said pawls in accordance with said selected knitting pattern.
  • a needle control device for a hand-operated knitting apparatus having at least one bed of needles, comprising a cam box reciprocable along said beds for controlling the needles thereof, a needle sinker secured upon said cam box, needle lifter means secured upon said cam box, a pair of pawls inclined at opposite angles to one another and arranged intermediate said needle lifter means, said pawls being rockably mounted in said cam box, a pawlsetting device arranged on said cam box, means connecting said pawl-setting device to said pawls for determining the range of rocking motion of said pawls in accordance with a selected knitting pattern, rocking levers pivoted to said cam box, said pawls being carried by said rocking levers, a spring connecting said levers together to hold said pawls in an initial position, said cam box having slots therein extending obliquely with respect to the longitudinal axis of said cam box, said rocking levers being each provided with a peg engaged in one of said slots, each of said levers rocking about
  • a needle control device for a hand-operated knitting apparatus having at least one bed of needles, comprising a cam box reciprocable along said beds for controlling the needles thereof, a needle sinker secured upon said cam box, needle lifter means secured upon said cam box, a pair of pawls inclined at opposite angles to one another and arranged intermediate said needle lifter means, said pawls being rockably mounted in said cam box, a pawlset-ting device arranged on said cam box, means connecting said pawl-setting device to said pawls for determining the range of rocking motion of said pawls in accordance with a selected knitting pattern, rocking levers pivoted to said can box, said pawls being carried by said rocking levers, a spring connecting said levers together to hold said pawls in an initial position, said pawl-setting device including a row of spring controlled keys mounted on said cam box, all but one of said keys being adapted for automatic locking in depressed position and being provided with terminal lugs carrying said stop pins.
  • a needle control device for a hand-operated knitting apparatus having at least one bed of needles, com.- prising a cam box reciprocable along said beds for controlling the needles thereof, a needle sinker secured upon said cam box, needle lifter means secured upon said cam box, a pair of pawls inclined at opposite angles to one another and arranged intermediate said needle lifter means, said pawls being rockably mounted in said cam box, a pawl-setting device arranged on said cam box, means connecting said pawl-setting device to said pawls for determining the range of rocking motion of said pawls in accordance with a selected knitting pattern, rocking levers pivoted to said cam box, said pawls being carried by said rocking levers, a spring connecting said levers together to hold said pawls in an initial position, said pawl-setting device including a rotatable knob mounted on said cam box, said knob being provided inside said cam box with a cam track, said cam track engaging said stop pins to advance said stop pins selective
  • a hand-operated control for a knitting apparatus having at least one bed of needles comprising a cam box overlying said needle bed and adapted to be moved to and fro thereover, a needle control pawl pivotally mounted on said cam box and having an upper face engageable with said needles upon movement of said cam box to lift them and a lower face engageable with said needles upon movement of said cam box to cause sinking thereof, fixed stop means disposed at each side of the path of pivotal movement of said pawl to limit the extreme movement thereof, displaceable intermediate stop means adapted to be positioned in the path of said needle control pawl to determine the range movement of said control pawl, setting means to actuate said displaceable stop means in accordance with a selected stitch pattern, said control pawl having a pivotal axis which can be shifted relative to the cam box, and means for shifting the position of said pivotal aX-is relative to the cam box.
  • a hand-operated control for a knitting apparatus having at least one bed of needles comprising a cam box overlying said needle bed and adapted to be moved to and fro thereover, a needle control pawl pivotally mounted on said cam box and having an upper face engageable with said needles upon movement of said cam box to lift them and a lower face engageable with said needles upon movement of said cam box to cause sinking thereof, fixed stop means disposed at each side of the path of pivotal movement of said pawl to limit the extreme movement thereof, displaceable intermediate stop means adapted to be positioned in the path of said needle control pawl to determine the range movement of said control pawl, setting means to actuate said displaceable stop means in accordance with a selected stitch pattern, a second control pawl pivotally mounted on said cambox at a laterally spaced location from said first pawl, said control pawls being inclined toward one another, means biasing said pawls against one end of their pivotal movement range, a fixed needle sinker element located between said
  • a hand-operated control for a knitting apparatus as set forth in claim 5 including a second control pawl pivotally mounted on said cam box at a laterally spaced location from said first pawl, said control pawls being inclined toward one another,'and resilient means extending between the control pawls for biasing said paw-ls against one end of their pivotal movement range.
  • a needle control device for a hand-operated kniting apparatus having a car'n "box reciprocable along said bed forcontrolling the needles thereof, a needle control pawl, means for pivotally mounting said control pawl on said cam box, said means for pivotally mounting said control pawl including a member projecting from said control pawl and a slot in said cam box, said member being adapted to be carried in various positions of said slot to thereby vary the position of the pivotal axis of said control pawl, said control pawl having an upper face engagea-ble with said needles upon movement of said carn box to lift them and a lower face engageable with said needles upon movement of said cam box to cause sinking thereof, a pawl-setting device 8 arranged on said cam box, and means connecting said pawl-setting device to said pawl for determining the range of rocking motion of said pawl in accordance with a selected knitting pattern.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Knitting Machines (AREA)
US806532A 1958-04-16 1959-04-15 Two-bed hand-knitting apparatus Expired - Lifetime US3103110A (en)

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CH5842458 1958-04-16

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US806532A Expired - Lifetime US3103110A (en) 1958-04-16 1959-04-15 Two-bed hand-knitting apparatus

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GB (1) GB902474A (enrdf_load_stackoverflow)
NL (1) NL238237A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358473A (en) * 1964-11-05 1967-12-19 Aisin Seiki Needle selector for a hand knitting machine
US3748873A (en) * 1970-07-06 1973-07-31 Aisin Seiki Carriage mechanism of a hand knitting apparatus
US3783641A (en) * 1970-12-29 1974-01-08 Brother Ind Ltd Knitting machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US941206A (en) * 1908-04-22 1909-11-23 Dubied & Cie Sa E Needle-cam for straight independent-needle knitting-machines.
US2150730A (en) * 1937-01-29 1939-03-14 Carl F Schuessler Knitting machine
US2681553A (en) * 1950-03-06 1954-06-22 Chiti Aroldo Knitting machine
US2830446A (en) * 1955-03-17 1958-04-15 Opawa August Camming slide for hand knitting machines
US2909049A (en) * 1952-09-11 1959-10-20 Messrs Striwa A G Hand knitting apparatus
US2915887A (en) * 1954-06-19 1959-12-08 Moser Hans Hand knitting apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US941206A (en) * 1908-04-22 1909-11-23 Dubied & Cie Sa E Needle-cam for straight independent-needle knitting-machines.
US2150730A (en) * 1937-01-29 1939-03-14 Carl F Schuessler Knitting machine
US2681553A (en) * 1950-03-06 1954-06-22 Chiti Aroldo Knitting machine
US2909049A (en) * 1952-09-11 1959-10-20 Messrs Striwa A G Hand knitting apparatus
US2915887A (en) * 1954-06-19 1959-12-08 Moser Hans Hand knitting apparatus
US2830446A (en) * 1955-03-17 1958-04-15 Opawa August Camming slide for hand knitting machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358473A (en) * 1964-11-05 1967-12-19 Aisin Seiki Needle selector for a hand knitting machine
US3748873A (en) * 1970-07-06 1973-07-31 Aisin Seiki Carriage mechanism of a hand knitting apparatus
US3783641A (en) * 1970-12-29 1974-01-08 Brother Ind Ltd Knitting machine

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GB902474A (en) 1962-08-01
NL238237A (enrdf_load_stackoverflow)

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