US3699784A - Latch needle for knitting machines - Google Patents

Latch needle for knitting machines Download PDF

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Publication number
US3699784A
US3699784A US149969A US3699784DA US3699784A US 3699784 A US3699784 A US 3699784A US 149969 A US149969 A US 149969A US 3699784D A US3699784D A US 3699784DA US 3699784 A US3699784 A US 3699784A
Authority
US
United States
Prior art keywords
needle
foot
shock
latch
absorbent material
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
US149969A
Other languages
English (en)
Inventor
Hardo Berentzen
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.)
Groz Beckert KG
Original Assignee
Theodor Groz and Soehne and Ernst Beckert Nadelfabrik 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
Priority claimed from DE19702029440 external-priority patent/DE2029440C/de
Application filed by Theodor Groz and Soehne and Ernst Beckert Nadelfabrik KG filed Critical Theodor Groz and Soehne and Ernst Beckert Nadelfabrik KG
Application granted granted Critical
Publication of US3699784A publication Critical patent/US3699784A/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
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00

Definitions

  • the present invention provides a latch needle for knitting machines having a needle foot which engages the needle reciprocating elements of the knitting machine and thereby reciprocates the latch needle during operation.
  • a layer of shock-absorbent material is disposed over the surface of the needle foot in order to cushion the engagement of the needle foot with the reciprocating elements of the machine during operation, and thereby prevent damage to the latch needle elements.
  • the needle foot may be substantially rectangular'shaped, or dove-tail shaped, and have a cap or collar constructed of the shock-absorbent material disposed over its surface.
  • the needle foot may be constructed of two separate members affixed adjacent one another on the shaft of the latch needle, having either a divided cap of shock-absorbent material disposed over the needle foot, or a strip of the shockabsorbent material disposed between the members.
  • the needle foot and the layer of shock-absorbent material may also be formed as an integral unit so that the needle foot is constructed either partially or wholly of the shock-absorbent material.
  • FIG. 3 is a side view of the latch needle of FIG. 1 showing a layer of shock-absorbent material disposed thereon in the form of a collar.
  • FIG. 5 is a side view of the embodiment of FIG. 2, in which the needle foot is provided with an aperture and the cap of shock-absorbent material is provided with a projection received by the aperture in order to secure the cap on the needle foot;
  • FIG. 7 is a top planar view of the latch needle shown in FIG. 6;
  • FIG. 11 is a side view of the latch needle shown in FIG. 4, wherein a layer of shock-absorbent material is constructed in the form of a strip and is disposed between the members of the needle foot; and
  • FIG. 12 is a top plan view of the latch needle shown in FIG. 1 1.
  • FIGS. 1-3 there is shown steel latch needle 1 having a hook 2 and a latch 3.
  • a needle foot 4 substantially rectangularly-shaped, is affixed to the shaft of the needle.
  • the needle foot projects into a needle guide passage provided in the knitting machine, and engages needle reciprocating elements contained therein so that the latch needle is reciprocated during operation.
  • Needle foot 4 is surrounded by, or coated with, a layer of shock-absorbent material.
  • the layer of material may be formed as a rectangular cap 5, or as a rectangular collar 6, as shown in FIG. 3, both of which are slidably disposed over the needle foot, for engaging the reciprocating elements and absorbing the shocks produced by the machine and thereby preventing premature damage to the latch needle.
  • the amount of shock absorption produced by the material will depend on the thickness of the coating applied to the needle foot. However, even if the thickness of the coating amounts to only tenths of a millimeter, as may be required by the needle thickness, the coating will absorb the shocks and prevent a substantial amount of premature needle damage. If the coating is made thicker, or if the needle foot is constructed partially or wholly of the shock-absorbent material, the shock-absorption will be increased.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Socks And Pantyhose (AREA)
US149969A 1970-06-15 1971-06-04 Latch needle for knitting machines Expired - Lifetime US3699784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702029440 DE2029440C (de) 1970-06-15 Zungennadel für Strickmaschinen

Publications (1)

Publication Number Publication Date
US3699784A true US3699784A (en) 1972-10-24

Family

ID=5773993

Family Applications (1)

Application Number Title Priority Date Filing Date
US149969A Expired - Lifetime US3699784A (en) 1970-06-15 1971-06-04 Latch needle for knitting machines

Country Status (4)

Country Link
US (1) US3699784A (en, 2012)
CA (1) CA919929A (en, 2012)
FR (1) FR2095590A5 (en, 2012)
GB (1) GB1302655A (en, 2012)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874199A (en) * 1972-06-19 1975-04-01 Theodor Groz & Sonne Latch needle for knitting machines
US3964274A (en) * 1972-01-31 1976-06-22 Raychem Corporation Needle foot shoe for knitting needle
US4036036A (en) * 1976-03-22 1977-07-19 The Torrington Company Latch needle for knitting machines
US4434628A (en) 1982-04-13 1984-03-06 Silver Seiko Ltd. Knitting needle assembly
US4542632A (en) * 1981-04-14 1985-09-24 Reilly Patrick J Hand-operated knitting apparatus
US4612785A (en) * 1983-12-23 1986-09-23 Bentley Engineering Company Limited Dials for circular knitting machines
US4831847A (en) * 1987-05-06 1989-05-23 Precision Fukuhara Works, Ltd. Knitting machine parts
US5077990A (en) * 1988-05-06 1992-01-07 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Knitting machine and parts having diamond-like carbon coated surfaces

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118215B (en) * 1982-04-15 1985-07-17 Silver Seiko Knitting needle assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE571976A (en, 2012) *
US822401A (en) * 1905-01-27 1906-06-05 Edward H Sturtevant Knitting-machine needle.
US1681512A (en) * 1923-07-05 1928-08-21 James H Bell Method of manufacturing knitting needles
GB1145150A (en) * 1966-09-02 1969-03-12 Lebocey & Cie Georges Needle for knitting-machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE571976A (en, 2012) *
US822401A (en) * 1905-01-27 1906-06-05 Edward H Sturtevant Knitting-machine needle.
US1681512A (en) * 1923-07-05 1928-08-21 James H Bell Method of manufacturing knitting needles
GB1145150A (en) * 1966-09-02 1969-03-12 Lebocey & Cie Georges Needle for knitting-machines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964274A (en) * 1972-01-31 1976-06-22 Raychem Corporation Needle foot shoe for knitting needle
US3874199A (en) * 1972-06-19 1975-04-01 Theodor Groz & Sonne Latch needle for knitting machines
US4036036A (en) * 1976-03-22 1977-07-19 The Torrington Company Latch needle for knitting machines
US4542632A (en) * 1981-04-14 1985-09-24 Reilly Patrick J Hand-operated knitting apparatus
US4434628A (en) 1982-04-13 1984-03-06 Silver Seiko Ltd. Knitting needle assembly
US4612785A (en) * 1983-12-23 1986-09-23 Bentley Engineering Company Limited Dials for circular knitting machines
US4831847A (en) * 1987-05-06 1989-05-23 Precision Fukuhara Works, Ltd. Knitting machine parts
US5077990A (en) * 1988-05-06 1992-01-07 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Knitting machine and parts having diamond-like carbon coated surfaces

Also Published As

Publication number Publication date
GB1302655A (en, 2012) 1973-01-10
FR2095590A5 (en, 2012) 1972-02-11
DE2029440A1 (de) 1972-01-27
CA919929A (en) 1973-01-30

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