US3913354A - Design knitting machine with stitch transfer - Google Patents

Design knitting machine with stitch transfer Download PDF

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Publication number
US3913354A
US3913354A US424994A US42499473A US3913354A US 3913354 A US3913354 A US 3913354A US 424994 A US424994 A US 424994A US 42499473 A US42499473 A US 42499473A US 3913354 A US3913354 A US 3913354A
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United States
Prior art keywords
knitting machine
needle
selection
jacquard knitting
platen
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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
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US424994A
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English (en)
Inventor
Fritz Kohler
Andre Perotti
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.)
Edouard Dubied et Cie SA
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Edouard Dubied et Cie SA
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Application filed by Edouard Dubied et Cie SA filed Critical Edouard Dubied et Cie SA
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Publication of US3913354A publication Critical patent/US3913354A/en
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Expired - Lifetime legal-status Critical Current

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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
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
    • D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
    • D04B15/70—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used in flat-bed knitting machines
    • 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
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
    • D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
    • D04B15/78—Electrical devices

Definitions

  • ABSTRACT A jacquard knitting machine having a built-in stitch transfer, comprising needlebeds arranged in a paired relationship and having grooves for receiving needles. Needle jacks having a butt portion are also positioned in the grooves. Levers are placed beneath the needle jacks and are pivotally movable against the needlebed at one end and are coupled at the other end to a platen means. A lock means having control cams for controlling the needles and the needle jacks overlies the needlebed above the needles and needle jacks. A section means is provided for selectively operating the platen means and lifting the butt portion of the associated needle jack from the lowered position to a raised position or maintaining the butt portion of the associated needle jack in the lowered position.
  • the selection means includes an electromagnetic selection head that operates under control of a crossed bar programmer thereby operating the needle jacks in accordance with a design set in the programmer.
  • the present invention relates to a jacquard knitting machine with built-in stitch transfer, comprising needlebeds arranged roof-like in pairs, provided with grooves in which needles and needle jacks provided with butts are located.
  • the butts of the needle jacks are positioned in two levels in relation to the needlebed by a selection means and comprise locks provided with fixed cams and movable cams which may be at a greater or smaller distance from the needlebeds.
  • locks which are known which are equipped with cams which can be placed selectively in distal, half-way or proximal position in relation to their needlebed.
  • the objective of the invention is to create a simple machine where the needles, selected by a low-cost program carrier, can travel a multitude of courses.
  • the machine according to the invention is characterized by the fact that one-arm levers, lodged in the grooves and connected to the needlebed by an articulation in their pivoting point, and provided with braces in the form of brackets holding the needle jacks bearing down on their lever have the end of their arms connected by an articulation to a platen, the latter being arranged approximately perpendicularly to its lever and placed in an auxiliary bed, and it carries at its end opposite the lever, an articulated selector, the latter coacts with an electromagnetic selection head located ahead of the cams, looking in the operating direction of the locks and which pivots the platen in either of two different positions.
  • the platen In one of these positions, the platen is lifted in the direction of its length by a ramp and its articulation pivots the lever upward, placingthe butt of its clavette substantially above its needlebed.
  • the platen In the other different position, the platen is not lifted, the lever is not pivoted and the butt of its needle jack emerges slightly above the needlebed, whereby the needle jack lifting cams, as well as the needle jack sorting and lowering cams, can be placed selectively in distal, half-way or proximal position in relation to their needlebed, and whereby the cams controlling the stitch transfer are placed substantially in the center of the locks and whereby the program carrier is constituted by a crossed bar programmer whose reading is controlled on the one hand by counters, in turn controlled by the position of the locks in relation to the needlebeds and on the other hand by controls of the machine.
  • FIG. 1 is a partial view in section of the needlebeds, a selection head and the locks,
  • FIG. 2 is a sectionalong IIIl across a selection head
  • FIG. 3 is a view from the bottom of a lock
  • FIG. 4 is a plan view of a program carrier.
  • the needlebeds 1 and 2 are arranged rooflike in pairs. They are fastened to the frame 3 of the machine. Each needlebed is provided with grooves 4, in which the needles 5 are located. The latter are equipped with butts 6 and housings permitting the transfer of stitches. Each needle has a butt 6. Needle jacks 7 arranged behind the needles 5 are also located in the grooves 4 and are independent of the needles. Each needle jack 7 is provided with a butt 8.
  • One arm lever 9 is also located in the grooves 4. They are connected to their needlebed by an articulation placed in their pivoting point. Said articulation is formed by a boss 10 which bears down on the bottom 11 of the groove 4 and by a notch 12 partially surrounding a thread 13. The latter is placed perpendicularly to the grooves 4 and fastened to its needlebed.
  • These levers carry-on their upper side 14 one needle jack 7 each. They are provided with bracket-shaped braces, which maintain the needle jacks bearing down on the upper side 14.
  • the needle 5, needle jacks 7 and lever 9 are guided laterally by the walls of the grooves 4.
  • Each lever is connected at its end of the arm to a platen 16 by the articulation 17.
  • the platens are housed in an auxiliary bed 18 which is fastened to the needlebed 1 and/or 2 respectively by a support 19 and they are placed approximately perpendicularly in relation to their lever 9.
  • the platens 16 are connected to the selectors 20 by an articulation 21. These selectors are placed in an extension of the auxiliary bed 18 and guided laterally, like the platens 16, by the walls of the grooves 22 of said auxiliary bed 18.
  • the selectors 20 move inside selection heads 23, one of which is shown in FIG. 2.
  • the selectors are aligned in the hopper 24. They are pulled from either side of the selection head into the constriction 25 and then follow the divergent walls 26 by magnetic gluing, which amplifies the selection operated in the constriction 25.
  • the alignment and amplification operations are reversed, but the selection is likewise madein the constriction 25.
  • the latter is connected magnetically to an electro-magnet by the side (not shown).
  • the electro-magnets are connected electrically with the program carrier via amplifiers and other usual circuits (not shown).
  • the inclined walls are connected magnetically with permanent magnets (not shown).
  • Each lock 27 is provided with two selection heads 23, located at its ends outside the start and/or finish of the courses formed by the cams. For a given direction of operation of the locks, only the selection heads 23 preceding the cams, that is to say those located ahead of the cams, are activated.
  • the selectors 20 After the selectors 20 arrive at the end of the divergent walls, they undergo a displacement perpendicularly to their direction of operation A. By so doing, they have pivoted the platen 16 attached to them either into position B or into position C. Both positions are different. Those of platens 16, which are in position B, have their butt 28 engaged successively in the entrance of a channel 29, lifted in the direction of the length of the platens by a rising ramp of the channel, maintained at a certain height by a horizontal part of the channel and lowered by a descending ramp of said channel. The entrance and exit of the channel are about opposite the outlets of the selection heads. The superelevated horizontal part of the channel has its start and finish outside the start and finish of the courses formed by the cams.
  • the channel 29 is machined in a strip 33 and it is fastened to the lock 27.
  • a lock 27, shown in FIG. 3, is assigned to each needlebed l and 2 respectively. It is provided with a first knitting system 34 and a second knitting system 35. A stitch transfer system 36 is located between said systems. As a result of this arrangement of the systems, the stitch transfer system 36 is located substantially in the center of its lock.
  • the needle ascension cams uniformly identified by reference number 40 and the needle jack ascension cams, identified by 41, as well as the cams for sorting and lowering the needle jacks, identified by 42, are mobile perpendicularly'to their lock 27.
  • Cams 41 and 42 may be placed selectively in distal, half-way or proximal position, earns 40 in distal or proximal position, in relation to their slot. These positions generally are changed several times during the knitting and these cams form, together with cams 37, 38 and 39, a multitude of different paths.
  • the crossed bar stencil 45 of FIG. 4 is provided with a horizontal bars 48 and vertical bars 49.
  • the number of the former shall at least be equal to the number of the different maximum rows desired of the design and the number of the latter shall be equal at least to the number of maximum stitches desired in the direction of the width of the design.
  • This kind of knitting machine often is provided with an impulse generator 50, fastened for example on a selection head 23'and coacting with a rack 56. The latter is fastened against the auxiliary bed 18.
  • the selection of the horizontal bars 48 is controlled from the reader 54 of the work programs. It controls a switch 55 which transmits the data read on a certain horizontal bar 48 to the electro-magnets via logic and power means (not shown).
  • a jacquard knitting machine with a built in stitch transfer comprising:
  • lock means having control cams positioned thereon for controlling said needles and said needle jacks;
  • levers disposed beneath said needle jacks, said levers being pivotally movable at a first end thereof;
  • platen means pivotally coupled to a second end of said lever for actuating the lever and lifting the butt portion of the needle jack associated with the lever from a lowered position to a raised position;
  • selection means for selectively operating said platen means and lifting the butt portion of the associated needle jacks from the lowered position to the raised position or maintaining the butt portion of the associated needle jack in the lowered position;
  • crossed bar programmer means for generating selection control signals, said selection control signals being utilized to energize said selection means.
  • said selection means includes a selector body, said selector body being coupled to said platen means.
  • selection means includes an electromagnetic selector head for positioning said selector body along a lateral path in a first lateral position or a second lateral position.
  • said selection means includes ramp means for engaging said platen means, said ramp means engaging said platen means when said selector body has been placed in said first lateral position.
  • the jacquard knitting machine of claim 7 including means for controlling length selection in said crossed bar programmer.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US424994A 1972-12-14 1973-12-14 Design knitting machine with stitch transfer Expired - Lifetime US3913354A (en)

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Application Number Priority Date Filing Date Title
CH1818472A CH560783A5 (en, 2012) 1972-12-14 1972-12-14

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US3913354A true US3913354A (en) 1975-10-21

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US424994A Expired - Lifetime US3913354A (en) 1972-12-14 1973-12-14 Design knitting machine with stitch transfer

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US (1) US3913354A (en, 2012)
JP (1) JPS4994963A (en, 2012)
CH (1) CH560783A5 (en, 2012)
DE (1) DE2361746A1 (en, 2012)
FR (1) FR2211016A5 (en, 2012)
GB (1) GB1432498A (en, 2012)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991592A (en) * 1975-10-30 1976-11-16 The Singer Company Automated home knitting machine
US4006611A (en) * 1975-09-12 1977-02-08 The Singer Company Positioning control for programmable knitting machines
US4015445A (en) * 1975-10-30 1977-04-05 The Singer Company Automated home knitting machine with means for controlling the knitting of design rows
US4036035A (en) * 1975-10-30 1977-07-19 The Singer Company Automated home knitting machine
US4040277A (en) * 1975-10-30 1977-08-09 The Singer Company Automated home knitting machine with program card reader
US4041732A (en) * 1975-04-08 1977-08-16 Universal Maschinenfabrik Dr. Rudolf Schieber Kg Straight and circular knitting machine
US4085597A (en) * 1975-11-04 1978-04-25 Silver Seiko Co., Ltd. Knitting machine coupled with the program reading device
US4100767A (en) * 1976-10-14 1978-07-18 Universal Maschinenfabrik Dr. Rudolf Schieber Kg Knitting machine pattern mechanism
US4287727A (en) * 1979-06-18 1981-09-08 Tatsumi Seiki Co., Ltd. Flat bed knitting machine
US4481793A (en) * 1981-09-08 1984-11-13 Edouard Dubied & Cie. (Societe Anonyme) Knitting machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513787Y2 (en, 2012) * 1974-10-04 1980-03-28
US4154066A (en) * 1977-10-06 1979-05-15 Empisal Knitmaster Luxembourg S.A. Needle selection unit for a hand knitter
CH618484A5 (en, 2012) * 1978-02-03 1980-07-31 Dubied & Cie Sa E
CH622566A5 (en, 2012) * 1978-06-05 1981-04-15 Dubied & Cie Sa E
US4235084A (en) * 1979-03-09 1980-11-25 Heiko Seisakusho, Ltd. Automatic control system for flat knitting machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2116761A (en) * 1936-02-11 1938-05-10 Firm Edouard Dubied & Cie Sa Jacquard device controlled knitting machine
US3262285A (en) * 1962-07-11 1966-07-26 Beguin Rene Electromagnetic needle selection mechanism
US3340708A (en) * 1963-02-15 1967-09-12 Schieber Universal Maschf Knitting machine with electromagnetic needle selection mechanism
US3715897A (en) * 1970-03-09 1973-02-13 Stoll & Co H Flat bed knitting machine
US3717014A (en) * 1971-09-13 1973-02-20 Dubied & Cie Sa E Jacquard rectilinear knitting machines
US3805558A (en) * 1970-07-25 1974-04-23 Protti Fab Macchine Per Maglie Electronic mechanical apparatus for the selection of needles in straight knitting machines in the making of jacquard knitted fabrics

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2116761A (en) * 1936-02-11 1938-05-10 Firm Edouard Dubied & Cie Sa Jacquard device controlled knitting machine
US3262285A (en) * 1962-07-11 1966-07-26 Beguin Rene Electromagnetic needle selection mechanism
US3340708A (en) * 1963-02-15 1967-09-12 Schieber Universal Maschf Knitting machine with electromagnetic needle selection mechanism
US3715897A (en) * 1970-03-09 1973-02-13 Stoll & Co H Flat bed knitting machine
US3805558A (en) * 1970-07-25 1974-04-23 Protti Fab Macchine Per Maglie Electronic mechanical apparatus for the selection of needles in straight knitting machines in the making of jacquard knitted fabrics
US3717014A (en) * 1971-09-13 1973-02-20 Dubied & Cie Sa E Jacquard rectilinear knitting machines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041732A (en) * 1975-04-08 1977-08-16 Universal Maschinenfabrik Dr. Rudolf Schieber Kg Straight and circular knitting machine
US4006611A (en) * 1975-09-12 1977-02-08 The Singer Company Positioning control for programmable knitting machines
US3991592A (en) * 1975-10-30 1976-11-16 The Singer Company Automated home knitting machine
US4015445A (en) * 1975-10-30 1977-04-05 The Singer Company Automated home knitting machine with means for controlling the knitting of design rows
US4036035A (en) * 1975-10-30 1977-07-19 The Singer Company Automated home knitting machine
US4040277A (en) * 1975-10-30 1977-08-09 The Singer Company Automated home knitting machine with program card reader
US4085597A (en) * 1975-11-04 1978-04-25 Silver Seiko Co., Ltd. Knitting machine coupled with the program reading device
US4100767A (en) * 1976-10-14 1978-07-18 Universal Maschinenfabrik Dr. Rudolf Schieber Kg Knitting machine pattern mechanism
US4287727A (en) * 1979-06-18 1981-09-08 Tatsumi Seiki Co., Ltd. Flat bed knitting machine
US4481793A (en) * 1981-09-08 1984-11-13 Edouard Dubied & Cie. (Societe Anonyme) Knitting machine

Also Published As

Publication number Publication date
JPS4994963A (en, 2012) 1974-09-09
GB1432498A (en) 1976-04-14
FR2211016A5 (en, 2012) 1974-07-12
DE2361746A1 (de) 1974-06-20
CH560783A5 (en, 2012) 1975-04-15

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