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US2222918A - Hosiery knitting frame - Google Patents

Hosiery knitting frame Download PDF

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Publication number
US2222918A
US2222918A US209776A US20977638A US2222918A US 2222918 A US2222918 A US 2222918A US 209776 A US209776 A US 209776A US 20977638 A US20977638 A US 20977638A US 2222918 A US2222918 A US 2222918A
Authority
US
United States
Prior art keywords
lever
coulier
slide
link
stroke
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
US209776A
Other languages
English (en)
Inventor
Tesse Felix
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.)
BONNETERIE SOC SOC GEN DE
DITE SOCIETE GENERALE DE BONNETERIE Ste
Original Assignee
BONNETERIE SOC SOC GEN DE
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
Application filed by BONNETERIE SOC SOC GEN DE filed Critical BONNETERIE SOC SOC GEN DE
Application granted granted Critical
Publication of US2222918A publication Critical patent/US2222918A/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
    • D04B11/00—Straight-bar knitting machines with fixed needles

Definitions

  • the devices according to the invention avoid the above mentioned inconveniences and in the case of the above cited special flat hosiery machines, realize the best conditions or operation of the coulier motion mechanism, due to the fact 5 that:
  • BA subsidiary device allowing:
  • Fig. 1 is a side view or the main coulier motion mechanism.
  • Fig.2 is an elevation of said main coulier motion mechanism in which the sliding block I, shown in mixed lines, has been removed.
  • Fig. 3 shows in elevation a particular position of the oscillating connecting rod 33 during the g motion of the slide 4.
  • Fig. 4 is an elevation of the oscillating rod 30 in its position of rest.
  • Fig. is a planview of the whole of the link 32 and of the oscillating connecting rod 30.
  • Fig. 6 is an elevation of the subsidiary device for the relative displacement of the slur cocks and the yarn carriers.
  • Fig. 7 is a side view of the same device.
  • the main coulier motion mechanism comprises (Figs. 1 and 2) a slide-block to which are secured, by their lugs 3, two supports 2 connected to a slide 4, the whole being capable of moving longitudinally along shafts 5 and 3 secured to the frames I and 3 of the machine.
  • the main cam shaft 5 carries a pinion III meshing with a gear wheel I I fast to the shaft I2.
  • the ratio of the gear wheels III and I I is such that when the main shaft 9 makes a revolution (during which the coulier motion of the yarn and the knitting properly called take place), the shaft I2 makes half a revolution, that is to say the displacement of the slur cocks and of the yarn carriers takes place, for two consecutive revolutions of the main cam shaft, in the one or in the other direction.
  • a crank I3 carries a stationary pin I4 to which is loosely mounted a slide I5 engaged in a groove of the slide I.
  • the shaft I6 may rotate in bearings of the frames 1 and 3 under the action of the usual device controlling the rotation of the spindle of the narrowing mechanism, said intermittent rotation taking place through the medium of the chain 23 gearing with the pinion 24, keyed to the end of the shaft.
  • the oscillating rod 30 is loosely mounted on a 5 shaft 3
  • the lever 33 may pivot about an axis 31 mounted on a support (Fig. 7) secured to the machine.
  • the lever 35 may pivot about the fulcrum 39 mounted on the support 40 secured to the cross members 4
  • the coulier-lever 35 carries, at its upper end (Figs. 1 and 2) an axis 43 to which is pivoted a lever 44 carrying two pins to which two links 45 and 46 are articulated.
  • the link 45 is articulated to slide 41 through the medium of shaft 43 and the rod 46 to the slide 43 through the medium 7 of shaft 5
  • adapted to operate longitudinally the levers (not represented) driving the carrier rods;
  • to the slide 43 is secured a connecting bar 52 driving the slur cocks in their longitudinal motion.
  • moreover carries two arms 33 and 64 on the ends of which are mounted the II rollers and 33; the latter bear respectively against cams 31 and 33 secured to the gear wheel II.
  • the main coulier motion mechanism operates as follows:
  • crank I3 imparts to the slide-block I and consequently to the slide 4 connected to the latter alternative translations of a constant amplitude. It must be observed that. due to the guiding of the slide I3, over a great length of 35 the plane faces of the groove provided in the slide I in which lubrication is permanently secured, it is possible to obtain a safe operation, without play, of the slide block I, of the slide 4 and consequently of the parts to which said slide .0 4 imparts the motions which will be hereinafter described.
  • the form of said grooves has for effect to slow down the translation of the oscillating link 33 and consequently reduces the speed of oscillation of the looping lever 35.
  • and 22 can be determined in such manner that the stroke of the slur cocks will exceed the one of the yarn carriers, whatever may be the row, in starting and in arriving, according to'the constant distance which exists necessarily, at thebeginning of the loop forming of a row, between the yarn carriers and the slur cocks.
  • the auxiliary device as above described allows the dividing of the total stroke of the coulier lever 35 into two partsythe one controlled by the translation of the oscillating link 30 and limited, at the end of the motion, to the position in which the slur cocks have Just pushed the last sinker taking yarn in the row, the other for modifying, after the oscillating link 30 and the coulier lever 35 have been stopped and a little before the formation of the meshes succeeding to the loop forming of the row, the relative position of the carrier rod feeding device (that is to say the slide 41) and of the slur cocks (that is to say the slide 49) 1
  • the operation of this auxiliary device is as folows:
  • the outline of the earns 31 and 53 (Fig. 6) comprises arcs of a circle concentric to the shaft It and upon which bear the rollers 65 and 55 of the lever (6i-525354) whilst the oscillating link 30 acts upon the coulier lever 35 as well as during the first part of the formation of meshessucceeding to the loop forming. During all this time, the lever 5! therefore remains immovable, as well as the link and lever 56 and the axis 55 of the link 56.
  • the cams 61 and 38 act upon the rollers of the lever 5i shortly before the lever 35 will be operated by the .link 32, in view of a new looping stroke.
  • the length of the lever 35 is equal to that of the link 54 and the distance between the upper axes l3 and 53 is equal to the distance between the lower axes 33 and 55.
  • the centres of axes 43-53-55 and 33 are consequently the apices of an articulated parallelogram and, as long as the lever 6
  • the relative position of said slides is moreover such that, due to their connection through the medium, on the one hand, of the bar 5
  • will bring the levers (not shown) of the carrier rods into contact with the dogs of said rods--whence a starting of the carrier rods occurs without shock at the next stroke of the coulier lever 35and that the bar 52 will bring the slur cocks to a symmetrical position, relatively to that which the yarn carriers occupied before the rocking of the lever 44.
  • the auxiliary device therefore reduces the stroke of the oscillating link 30 for the loop forming of every row, whence a new reduction of the rate of motion of the carrier rods at the moment the same arrive on the stops limiting their stroke, whereas, at this moment, the actuating device of the carrier rods, controlled by the slide 41, has a shorter way to travel.
  • Said reduction of speed of impact of the carrier rods allows to reduce the braking of the unwinding of the yarns and, consequently, to obtain a softer blank hosiery and more correct selvedges, and to avoid the cuts during'the loop forming; the auxiliary device again puts the slur cocks relatively to the yarn carriers in the position suitable for looping the yarn of the next row of meshes, during the time the meshes are formed, which means a saving of time, this relative displacement is performed so that the carrier rod levers will come into contact with the dogs of said rods, thereby insuring the starting without shocks of the carrier rods during the loop forming operation of the next row, and consequently correct selvedges and plating.
  • a coulier motion mechanism as claimed in claim 1, for flat hosiery machines, in which the slur cocks may be brought out of contact with the Jacks in the parts of their stroke in which the sinkers are not in position forloop forming, the combination of said main coulier motion mechanism with an auxiliary device in which the two parts 2

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Knitting Machines (AREA)
US209776A 1937-05-26 1938-05-24 Hosiery knitting frame Expired - Lifetime US2222918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR688472X 1937-05-26

Publications (1)

Publication Number Publication Date
US2222918A true US2222918A (en) 1940-11-26

Family

ID=9026738

Family Applications (1)

Application Number Title Priority Date Filing Date
US209776A Expired - Lifetime US2222918A (en) 1937-05-26 1938-05-24 Hosiery knitting frame

Country Status (3)

Country Link
US (1) US2222918A (fr)
DE (1) DE688472C (fr)
FR (1) FR832904A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623371A (en) * 1948-12-08 1952-12-30 Hosemaster Machine Company Ltd Knitting machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623371A (en) * 1948-12-08 1952-12-30 Hosemaster Machine Company Ltd Knitting machine

Also Published As

Publication number Publication date
FR832904A (fr) 1938-10-06
DE688472C (de) 1940-02-23

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