US3908405A - Needle clamp for straight knitting machines - Google Patents

Needle clamp for straight knitting machines Download PDF

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Publication number
US3908405A
US3908405A US491707A US49170774A US3908405A US 3908405 A US3908405 A US 3908405A US 491707 A US491707 A US 491707A US 49170774 A US49170774 A US 49170774A US 3908405 A US3908405 A US 3908405A
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US
United States
Prior art keywords
needle
needles
clamping bar
sliding carriage
straight knitting
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
US491707A
Other languages
English (en)
Inventor
Hans Schieber
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.)
Henkel Dorus GmbH and Co KG
Original Assignee
Dr Rudolf Schieber GmbH and Co KG
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 Dr Rudolf Schieber GmbH and Co KG filed Critical Dr Rudolf Schieber GmbH and Co KG
Application granted granted Critical
Publication of US3908405A publication Critical patent/US3908405A/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
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • 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 present invention relates to a straight knitting machine having needles displaceably mounted in needle boards and comprising clamps mounted on the sliding carriage of the knitting machine for keeping the needles in their needle channels.
  • the known clamps for keeping the needles in their needle channels are in the form of needle covering bars mounted on the needle board. These needle covering bars generally having a swallow-tailed cross-section and the needle boards are provided with corresponding grooves for receiving the needle bars.
  • the known needle covering bars for needle retention are subject to the disadvantage that it is very complicated and costly to produce the needle covering, bars and swallow-tailed grooves in the needle boards and to fit the needle covering bars into the needle boards.
  • needle covering bars are used to retain the needles, it is very awkward to change the needles as the needle covering bars must be removed from the needle board each time it is necessary to change a needle.
  • a straight knitting machine which comprises clamps mounted on the sliding carriage itself.
  • this straight knitting machine there is the risk that the needles which are locked in place or can only be moved with difficulty will be damaged when the sliding carriage passes through the clamp.
  • the object of the present invention is to eliminate the above-mentioned disadvantges of the known needle clamps and produce a clamp which will retain the needles in a reliable manner, which enables the needles to be changed simply and rapidly and which avoids any damage to needles which are locked in place.
  • a small space is advantageously provided between the clamp and the needle board. This allows the sliding carriage to be displaced unobstructed, keeps the wear on the clamps to a minimum and avoids any damage to the needle board by the clamp.
  • the clamp consists of clamping bars extending lengthwise of the sliding carriage over the length thereof.
  • the clamps are advantageously made of metal or plastics material.
  • FIG. 1 is a diagrammatic partial view of a needle board and sliding carriage showing a sectional view of a clamping bar rigidly mounted on the sliding carriage at right angles to the needle board.
  • FIG. 2 shows a plan view of a clamping bar attached to the sliding carriage
  • FIG. 3 is a diagrammatic partial sectional view according to FIG. 1 with a flexibly mounted clamping bar.
  • the needles 1 are displaceably mounted in needle channels 2 of a needle board 3.
  • the needles 1 are displaced in a reciprocating movement in their needle channels 2 by the breech parts 4.
  • a sliding carriage comprising a cam box 5 is mounted for displacement along the needle board 3.
  • a clamping bar 6 is rigidly secured to the cam box 5.
  • the clamping bar 6 prevents the needles 1 from working out of their needle channels 2 during the looping operation.
  • the clamping bar 6 is mounted in such a way that it does not contact the needle board 3 and thus it can fulfil its function with virtually no wear and does not impede the movement of the sliding carriage.
  • the needles 2 can only be displaced when they are within the range of the breech parts 4, it is sufficient for the length of the clamping bars 6 to correspond to the breech width.
  • FIG. 2 shows clearly that the length of the clamping bar 6 corresponds approximately to the width of the breech mechanism.
  • the needles 2 are thus only clamped in the region of the sliding carriage. Outside of the range of sliding carriage, the needles can be removed without difficulty from the needle board 3, for example, when a needle breaks, when making a pattern change which depends on the needles and when cleaning the needles. 7
  • FIG. 3 shows a modified assembly of a clamping bar 7 on the cam box 5.
  • the clamping bar 7 is mounted on the sliding carriage or cam box 5 by means of guide bolts 8 and springs 9 which hold the clamping bar under a predetermined tension.
  • the flexible mounting of the clamping bar 7 has the advantage that needles which have been raised and which are not pressed down when passing by the clamp, for example, because they are locked in position owing to dirt in the machine, will cause the clamp to yield. This largely avoids needle breakage and any damage to the pieces between the needle channels.
  • the bars are mounted on the cam box 5 in such a way that they do not contact the needle board 3.
  • a small space x is provided between the clamping bars 6 or 7 and the needle board 3.
  • a straight knitting machine comprising at least one needle board having a plurality of needle channels, a
  • a straight knitting machine as set forth in claim 1 mounting said clamping bar on said sliding carriage 5 wherein said clamping bar is made of plastics material.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US491707A 1973-07-27 1974-07-25 Needle clamp for straight knitting machines Expired - Lifetime US3908405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732338274 DE2338274B2 (de) 1973-07-27 1973-07-27 Flachstrickmaschine mit am schlitten angebrachten niederhaltern zum halten der nadeln

Publications (1)

Publication Number Publication Date
US3908405A true US3908405A (en) 1975-09-30

Family

ID=5888193

Family Applications (1)

Application Number Title Priority Date Filing Date
US491707A Expired - Lifetime US3908405A (en) 1973-07-27 1974-07-25 Needle clamp for straight knitting machines

Country Status (9)

Country Link
US (1) US3908405A (it)
JP (1) JPS5036756A (it)
CS (1) CS169773B2 (it)
DD (1) DD111943A5 (it)
DE (1) DE2338274B2 (it)
FR (1) FR2238789B1 (it)
GB (1) GB1446808A (it)
IT (1) IT1015543B (it)
SU (1) SU557769A3 (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4640103A (en) * 1984-08-14 1987-02-03 Universal Maschinenfabrik Dr. Rudolf Schieber Gmbh & Co., Kg Double head flat knitting machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2718130A (en) * 1951-03-09 1955-09-20 Dubied Machinery Company Straight-frame knitting machine
US2958214A (en) * 1957-09-07 1960-11-01 Paliz Holding Ag Actuating slide for the needles of a hand knitting machine
US3349576A (en) * 1966-08-12 1967-10-31 Borne Jean Means for casting off knitted fabric stitches
US3429145A (en) * 1965-08-27 1969-02-25 Karl Steinhof Apparatefabrik F Cam carriage for knitting machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2718130A (en) * 1951-03-09 1955-09-20 Dubied Machinery Company Straight-frame knitting machine
US2958214A (en) * 1957-09-07 1960-11-01 Paliz Holding Ag Actuating slide for the needles of a hand knitting machine
US3429145A (en) * 1965-08-27 1969-02-25 Karl Steinhof Apparatefabrik F Cam carriage for knitting machine
US3349576A (en) * 1966-08-12 1967-10-31 Borne Jean Means for casting off knitted fabric stitches

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4640103A (en) * 1984-08-14 1987-02-03 Universal Maschinenfabrik Dr. Rudolf Schieber Gmbh & Co., Kg Double head flat knitting machine

Also Published As

Publication number Publication date
DD111943A5 (it) 1975-03-12
CS169773B2 (it) 1976-07-29
FR2238789A1 (it) 1975-02-21
DE2338274A1 (de) 1975-02-20
DE2338274B2 (de) 1976-07-15
JPS5036756A (it) 1975-04-07
GB1446808A (en) 1976-08-18
IT1015543B (it) 1977-05-20
SU557769A3 (ru) 1977-05-05
FR2238789B1 (it) 1976-10-22

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