US2800005A - Needle bed for knitting machines - Google Patents

Needle bed for knitting machines Download PDF

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Publication number
US2800005A
US2800005A US443350A US44335054A US2800005A US 2800005 A US2800005 A US 2800005A US 443350 A US443350 A US 443350A US 44335054 A US44335054 A US 44335054A US 2800005 A US2800005 A US 2800005A
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United States
Prior art keywords
needle
needle bed
bar
needles
channels
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Expired - Lifetime
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US443350A
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English (en)
Inventor
Piltz Erich
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Individual
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Individual
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Publication date
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Publication of US2800005A publication Critical patent/US2800005A/en
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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
    • D04B15/10—Needle beds

Definitions

  • This invention relates to knitting machines, and more particularly to needle beds for knitting machines.
  • the knitting machines hitherto used in the art are generally equipped with one or more needle beds for carrying out knitting, the needle beds having needle channels open at the upper ends, in which the knitting needles are movably supported one alongside the other.
  • the knitting needles are generally guided at the open side of the needle channels by means of a bar arranged above, or pushed into the needle bed.
  • the needle bed or beds can be shaped in such manner that the knitting needles are removable from the needle bed without removing said bar, by moving the heels of the needles from their rest position upwards and simultaneously backwards. This is accomplished by deepening the needle channels at the side opposite to the open side, below and at both sides of the bar. Thus, the heads of the knitting needles can be caused to slide below the bar in said movement.
  • the needle bed is provided with perforations at the lower side thereof.
  • the needle bed with a recess consisting of a single opening traversing the needle bed in a direction across the direction of the needle channels.
  • This recess is preferably so high from the lower side that it reaches as far as a level exceeding the bottom of the needle channels.
  • the deepening of the needle bed according to the present invention can be effected in a simple manner. For instance, if the needle channels are produced by milling, the milling tool is adjusted at the place of the deepening to a deeper level. A piercing of the bottom of the channels can be effected by providing the raw needle bed with recesses at the corresponding places on the lower side, the upper side of the recesses being cut open in the normal milling of the needle channels. In the same manner the transverse recess can be formed already in the raw needle bed.
  • Fig. 1 is a top plan view of a needle bed according to the invention
  • Fig. 2 is a cross-section of the needle bed shown in Fig. 1
  • Fig. 3 is a cross-section of a modified embodiment of the needle bed
  • Fig. 4 is a cross-section of a still further embodiment of the needle bed according to the invention.
  • a needle bed 1 is provided with a plurality of needle channels 2 arranged in parallel to one another.
  • each needle channel 2 a knitting needle 3 is removably inserted, each of said knitting needles having a heel portion 3a and a head portion 312.
  • a bar 4 is arranged across the needle channels 2.
  • the bar 4 has a trapezoidal cross-section with the smaller side 4a arranged flush with the tops 8a of the strips 8 separating the needle channels 2 from one another.
  • the larger side 4b of bar 4 is parallel with the smaller side 4a at a distance from the bottom 2a of channels 2, corresponding substantially to the thickness of needles 3.
  • indentations 5 are provided, respectively, in the channels 2 of the needle bed 1 underneath and symmetrically to the crosssection of bar 4. These indentations 5 are longer than the width of the larger side 4b of the cross-section of bar 4 so as to leave openings 5a and 5b communicating with the needle channels 2.
  • the head portion 31) of the needle 3 is in a position above the opening 5a while the stem of needle 3 bridges the opening 5b.
  • the heel 3a of the needle is lifted and simultaneously pulled in the longitudinal direction of the needle 3 toward the right in Fig. 2.
  • the head 3b of the needle is automatically lowered from its normal position shown in full line in Fig. 2 so as to enter the indentation 5 and slide under the lower side 4b of the bar 4 so that the needle 3 passes the position shown in dotted line in Fig. 2. In this position the needle can be easily withdrawn entirely from needle bed 1.
  • FIG. 3 of the drawings the indentations 5 shown in Fig. 2 are replaced, respectively, by longitudinal recesses or openings 6 communicating with the lower side In of the needle bed 1.
  • the recesses 6 are separated from one another by the bottom parts 8b of the strips 8.
  • a single recess or opening 7 is provided, which runs across the needle bed 1 underneath and symmetrically to the bar 4.
  • the knitting needles supported by a needle bed according to the invention are inadvertently removed from the rest positions thereof, for instance by vibrations.
  • suitable safety devices can be used, comprising for instance, a preferably turnable ledge or bar which is arranged above the heels of the needles so as to prevent an upward movement thereof.
  • the downward movement of the heads of the needles can be prevented by a ledge or bar supported in the continuous recess and being either turnable or slidable into position.
  • the safety device may comprise a stamped resilient band or bands which are supported in the recess or recesses piercing the lower side of the needle bed and, owing to their resiliency, do not have to be removed during removal of the needles.
  • the bands may consist, for instance, of steel.
  • said second wall means being arranged below said bar, said deepening of said channels extending over a distance exceeding the width of said bar at either side so as to enable the knitting needles to be withdrawn from their rest positions without removing said bar by imparting to the heel portions of the knitting needles a combined 4 movement being the resultant of movements directed from the upper side and to the back of the needle bed, said second wall means defining a single recess running across the needle bed and communicating with the lower side thereof.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US443350A 1953-08-11 1954-07-14 Needle bed for knitting machines Expired - Lifetime US2800005A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE321834X 1953-08-11

Publications (1)

Publication Number Publication Date
US2800005A true US2800005A (en) 1957-07-23

Family

ID=6163697

Family Applications (1)

Application Number Title Priority Date Filing Date
US443350A Expired - Lifetime US2800005A (en) 1953-08-11 1954-07-14 Needle bed for knitting machines

Country Status (2)

Country Link
US (1) US2800005A (de)
CH (1) CH321834A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811296A (en) * 1970-09-14 1974-05-21 Billi Spa Circular knitting machine with jack removal slots

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1210108A (en) * 1916-02-02 1916-12-26 Samuel Grushlaw Needle-retaining mechanism for flat-knitting machines.
FR755075A (fr) * 1933-05-02 1933-11-18 Fonture pour métiers à tricoter
US2623372A (en) * 1949-08-25 1952-12-30 Zielinski George Sectional needle bed for flat-v knitting machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1210108A (en) * 1916-02-02 1916-12-26 Samuel Grushlaw Needle-retaining mechanism for flat-knitting machines.
FR755075A (fr) * 1933-05-02 1933-11-18 Fonture pour métiers à tricoter
US2623372A (en) * 1949-08-25 1952-12-30 Zielinski George Sectional needle bed for flat-v knitting machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811296A (en) * 1970-09-14 1974-05-21 Billi Spa Circular knitting machine with jack removal slots

Also Published As

Publication number Publication date
CH321834A (de) 1957-05-31

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