US2975736A - Loop shedder - Google Patents

Loop shedder Download PDF

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Publication number
US2975736A
US2975736A US743573A US74357358A US2975736A US 2975736 A US2975736 A US 2975736A US 743573 A US743573 A US 743573A US 74357358 A US74357358 A US 74357358A US 2975736 A US2975736 A US 2975736A
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US
United States
Prior art keywords
loop
needle
fabric
hook
slot
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
US743573A
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English (en)
Inventor
Card Joseph Lewis
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.)
SPENCER WRIGHT INDUSTRIES Inc A CORP OF TENNESSEE
Singer-Cobble Inc
Original Assignee
Singer-Cobble Inc
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 Singer-Cobble Inc filed Critical Singer-Cobble Inc
Priority to US743573A priority Critical patent/US2975736A/en
Priority to GB18791/59A priority patent/GB871852A/en
Priority to DEC19240A priority patent/DE1258717B/de
Application granted granted Critical
Publication of US2975736A publication Critical patent/US2975736A/en
Anticipated expiration legal-status Critical
Assigned to SPENCER WRIGHT INDUSTRIES, INC., A CORP OF TENNESSEE reassignment SPENCER WRIGHT INDUSTRIES, INC., A CORP OF TENNESSEE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FIRST NATIONAL BANK OF BOSTON, THE A NATIONAL BANKING ASSOCIATION, FNB FINACIAL COMPANY A MASSACHUSETTS BUSINESS TRUST
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/16—Arrangements or devices for manipulating threads
    • D05C15/22—Loop-catching arrangements, e.g. loopers; Driving mechanisms therefor

Definitions

  • This invention relates to a'loop pile tuftingmachine and more particularly to a device for preventing the needles from tagging machine.
  • One method of overcoming the problem of tagging is to provide in a tufting machine a second set of loopers or loop hooks to which may be transferred the loops formed by the first set of loop hooks. .Such a solution is quite expensive and limits the versatility of the tufting machine.
  • Another object of this invention is to overcome the disadvantages enumerated by providing a loop pile tufting machine having a comparatively simple mechanism for preventing loops from being speared or tagged by the needles on their next successive stitch or stroke, Another object of this invention is to provide in a loop pile tufting machine a guard member for preventing a loop formed in the base fabric from reentering the path of the reciprocating needle.
  • Another object of this invention is to provide a device for positively stripping the loop formed by a needle through a base fabric from the loop hook and to prevent the return of the loop into the path of the needle.
  • a further object of this invention is to provide in a loop pile tufting machine a device for simultaneously positively stripping and stretching the loop formed by a needle through a base fabric and a guard member for preventing a spread loop released from the tension of the loop hook from entering the path of the reciprocating needle.
  • Another object of this invention is to provide in a loop pile tufting machine a guard member containing a passage for a needle therethrough and permitting the exit of a loop therefrom but preventing reentry of the loop into the path of the needle.
  • Fig. 1 is a perspective view of the invention
  • Fig. 2 is a fragmentary side elevational sectional view disclosing the needle in its lowermost position and the loop hook moving toward the needle;
  • Fig. 3 is a view similar to Fig. 2 in which the loop hook the loops formed by a tufting I has crossed the needle to begin the formation of a loop;
  • FIG. 4 is a view similar to Fig. 3 in which the loop hook retains the loop while the needle moves upward;
  • Fig. 5 is a view similar to Fig. 4 disclosing the operation of the invention to release the loop from the loop hook and prevent the previously formed loop from reentering the path of the needle;
  • Fig. 6 is a section taken along the line 6.6 of Fig. 5.
  • Fig. 1 discloses a needle bar 10 containing a row of needles 11 and adapted to be reciprocated in a well known manner by push rods and eccentric mechanisms, not shown, in a conventional multiple needle tufting machine.
  • the needles 11 are adapted to be reciprocated through a base or backing fabric 12 fed through the machine in a well known manner in the direction of the arrow from the front to the rear of the machine.
  • the base fabric 12 is supported on the throat plate or needle plate 13 having prongs or fingers 14 extending between the needles 11 to support the fabric.
  • the needle plate 13 is mounted to the machine frame or bed plate 15 in the usual manner and may be elevated above the bed plate 15 by means of shims 16 in order to provide the proper nap height. 7
  • a loop hook block. or holder 17 carries a loop hook or lo oper 18 for each needle 11 and is mounted below the needle plate 13 toreciprocate the hooks 18 across the needles 11 in their lowermost position in order that the hooks may engage the pile yarns 19 to form loops 20 thereby, in a manner well known to the art.
  • the improvements for positively shedding or stripping the loops 20 from the hooks and preventing the loops from re-entering thepath of the reciprocating needles 11 comprises a rigid guard member 21' stationarily mounted between the needle plate '13 and the loop hooks 18 and extending transversely of the machine.
  • the guard member 21 may be secured 'to the needle plate 13 by means of screws 22 or may be secured to any other part of the machine which is convenient.
  • the rear face 23 of the member 21 is substantially fiat and has formed therein a plurality of vertically disposed channel-shaped slots 24, each slot being axially aligned with a reciprocating needle 11.
  • Each slot 24 has a pair of side walls 25, a front wall 26 and is open in the rear.
  • each slot 24 is just suflicient to permit the free passage therethrough of a needle 11 and the yarn 19 carried thereby.
  • the bottom of each slot 24 is proximately spaced above the top of the loop hook 18, so that the top of the reciprocating hook 18 just barely clears the bottom of the guard member 21.
  • each needle 11 will descend through the fabric 12 carrying a yarn 19 while its corresponding loop hook 18 is in its forward retracted position (Fig. 2).
  • the loop hook 18 is reciprocated toward the rear of the machine and between the needle 11 and the yarn 19 to begin the formation of a loop 20 thereby, as disclosed in Fig. 3.
  • the loop hook 18 retains the yarn 19 to form a loop 20, as disclosed in Fig. 4.
  • the loop hook 18 begins to travel forward to release the loop formed thereby.
  • the position of the front wall 26 of the slot 24 is such that it arrests the forward movement of the loop 20 caused by the forward motion of the loop hook 18 and consequently removes the'loop'of yarn Within the slot 24 from the loop'hook 18, as disclosed in Fig.
  • the loop of yarn under tension within the slot- 24 is suddenly released from the loop hook 18, by the proximately spaced front wall 26, the loop immediately snaps upward and is carried out of the slot 24 through the rear opening by the movement of the fabric 12.
  • loops 20 are positively stripped from the loop hooks 18 and also effectively prevented from returning to the paths of the needles 11 in order to prevent spearing or tagging of the loops which causes unsightly defects in the tufted fabric.
  • this invention may be adapted to the formation of tufted loop pile of various nap heights, it has been found to be particularly effective in the prevention of tagging of long loops of nap heights /1 inch or higher.
  • a guard member for preventing the loop from re-entering the path of said reciprocable needle comprising a pair of members spaced transverse of the direction of fabric feed apart from and on opposite sides of the path of said needle and spanning the major portion of the distance between said fabric support and said loop hook, each member having a co-extensive loop engaging surface substantially parallel to the needle axis and facing in the direction of fabric feed, said surfaces being spaced from said needle axis less than a stitch length in the direction of fabric feed and spaced apart sufficiently to permit the passage therebetween of a closed loop but to block the re-entry of a spread loop.
  • a guard member for preventing the loop from re-entering the path of the needle comprising a slot of uniform cross-section axially aligned with said needle to permit free reciprocation therethrough of said needle and yarn carried thereby, said slot having side walls spaced transverse of the direction of fabric feed on opposite sides of the path of said needle and spanning the major portion of the distance between said fabric support and said loop hook, said side walls terminating in spaced apart loop engaging surfaces parallel to and spaced beyond the path of the needle less than a stitch length in the direction of the fabric feed, the spacing between said loop engaging surfaces being greater than the width of a closed loop but less than the maximum spread of an open loop.
  • said slot comprises a wall connecting said side walls on the opposite side of said needle path from said loop engaging surfaces, said connecting wall being spaced proximate to said loop hook and adapted to strip a loop from a hook reciprocating away from said needle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Knitting Machines (AREA)
US743573A 1958-06-23 1958-06-23 Loop shedder Expired - Lifetime US2975736A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US743573A US2975736A (en) 1958-06-23 1958-06-23 Loop shedder
GB18791/59A GB871852A (en) 1958-06-23 1959-06-02 Improvements in loop pile tufting machines
DEC19240A DE1258717B (de) 1958-06-23 1959-06-19 Tufting-Maschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US743573A US2975736A (en) 1958-06-23 1958-06-23 Loop shedder

Publications (1)

Publication Number Publication Date
US2975736A true US2975736A (en) 1961-03-21

Family

ID=24989308

Family Applications (1)

Application Number Title Priority Date Filing Date
US743573A Expired - Lifetime US2975736A (en) 1958-06-23 1958-06-23 Loop shedder

Country Status (3)

Country Link
US (1) US2975736A (de)
DE (1) DE1258717B (de)
GB (1) GB871852A (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074362A (en) * 1960-03-29 1963-01-22 Lees & Sons Co James Industrial apparatus
US3237578A (en) * 1960-12-06 1966-03-01 Deutsche Linoleum Werke Ag Machine for making pile fabric formed by tufts of yarn on a web of backing material
US3577943A (en) * 1969-04-03 1971-05-11 Singer Co Dense pile tufting machines
US4285288A (en) * 1980-09-19 1981-08-25 Spencer Wright Industries, Inc. Tufting apparatus for preventing sew-thru and tagging
US4587914A (en) * 1984-10-22 1986-05-13 Card Roy T Tufting machine and method of preventing sew through and tagging in producing a tufted product
US20040149193A1 (en) * 2003-01-31 2004-08-05 Ian Beverly Tufting machine needle
US20070095264A1 (en) * 2005-10-27 2007-05-03 Sunstar Machinery Co., Ltd. Needle Plate for Double-Needle Sewing Machine
US20070283863A1 (en) * 2006-06-13 2007-12-13 Tuftco Corporation Narrow gauge hollow needle tufting apparatus
CN113604995A (zh) * 2021-06-16 2021-11-05 浙江信胜科技股份有限公司 一种用于多向小毛巾刺绣的开封口机构及绣花机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1098814A (en) * 1911-12-06 1914-06-02 Union Special Maschinenfab Multineedle sewing-machine.
US1388943A (en) * 1919-09-27 1921-08-30 Singer Mfg Co Needle-guard for sewing-machines
US1924715A (en) * 1932-08-03 1933-08-29 John B Farrell Tufting machine
US2062027A (en) * 1930-09-24 1936-11-24 Hopeck Mfg Company Inc Turfing machine
US2626619A (en) * 1949-09-10 1953-01-27 Gloria Figure Inc Apparatus for inserting hair into doll heads
US2836134A (en) * 1955-09-12 1958-05-27 John B Harrison Loop guard for tufting machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE176556C (de) * 1905-06-21
US2090022A (en) * 1935-07-18 1937-08-17 A & M Karagheusian Inc Machine for manufacturing pile fabric

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1098814A (en) * 1911-12-06 1914-06-02 Union Special Maschinenfab Multineedle sewing-machine.
US1388943A (en) * 1919-09-27 1921-08-30 Singer Mfg Co Needle-guard for sewing-machines
US2062027A (en) * 1930-09-24 1936-11-24 Hopeck Mfg Company Inc Turfing machine
US1924715A (en) * 1932-08-03 1933-08-29 John B Farrell Tufting machine
US2626619A (en) * 1949-09-10 1953-01-27 Gloria Figure Inc Apparatus for inserting hair into doll heads
US2836134A (en) * 1955-09-12 1958-05-27 John B Harrison Loop guard for tufting machine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074362A (en) * 1960-03-29 1963-01-22 Lees & Sons Co James Industrial apparatus
US3237578A (en) * 1960-12-06 1966-03-01 Deutsche Linoleum Werke Ag Machine for making pile fabric formed by tufts of yarn on a web of backing material
US3577943A (en) * 1969-04-03 1971-05-11 Singer Co Dense pile tufting machines
US4285288A (en) * 1980-09-19 1981-08-25 Spencer Wright Industries, Inc. Tufting apparatus for preventing sew-thru and tagging
US4587914A (en) * 1984-10-22 1986-05-13 Card Roy T Tufting machine and method of preventing sew through and tagging in producing a tufted product
US20040149193A1 (en) * 2003-01-31 2004-08-05 Ian Beverly Tufting machine needle
US6832568B2 (en) * 2003-01-31 2004-12-21 Spencer Wright Industries, Inc. Tufting machine needle
US20070095264A1 (en) * 2005-10-27 2007-05-03 Sunstar Machinery Co., Ltd. Needle Plate for Double-Needle Sewing Machine
US7311052B2 (en) * 2005-10-27 2007-12-25 Sunstar Machinery Co., Ltd. Needle plate for double-needle sewing machine
US20070283863A1 (en) * 2006-06-13 2007-12-13 Tuftco Corporation Narrow gauge hollow needle tufting apparatus
US7318383B1 (en) * 2006-06-13 2008-01-15 Tuftco Corporation Narrow gauge hollow needle tufting apparatus
CN113604995A (zh) * 2021-06-16 2021-11-05 浙江信胜科技股份有限公司 一种用于多向小毛巾刺绣的开封口机构及绣花机

Also Published As

Publication number Publication date
DE1258717B (de) 1968-01-11
GB871852A (en) 1961-07-05

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AS Assignment

Owner name: SPENCER WRIGHT INDUSTRIES, INC., A CORP OF TENNESS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:FNB FINACIAL COMPANY A MASSACHUSETTS BUSINESS TRUST;FIRST NATIONAL BANK OF BOSTON, THE A NATIONAL BANKING ASSOCIATION;REEL/FRAME:004248/0926

Effective date: 19840209