US3581688A - Self-threading needles - Google Patents

Self-threading needles Download PDF

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Publication number
US3581688A
US3581688A US34162A US3581688DA US3581688A US 3581688 A US3581688 A US 3581688A US 34162 A US34162 A US 34162A US 3581688D A US3581688D A US 3581688DA US 3581688 A US3581688 A US 3581688A
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US
United States
Prior art keywords
needle
thread
point
eye
self
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
US34162A
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English (en)
Inventor
Stanley J Ketterer
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.)
SINGER SPEZIALNADELFABRIK A CORP OF WEST GERMANY GmbH
Original Assignee
Singer Co
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 Co filed Critical Singer Co
Application granted granted Critical
Publication of US3581688A publication Critical patent/US3581688A/en
Assigned to SINGER SPEZIALNADELFABRIK GMBH, A CORP OF WEST GERMANY reassignment SINGER SPEZIALNADELFABRIK GMBH, A CORP OF WEST GERMANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SINGER COMPANY, THE, A CORP OF NJ
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B85/00—Needles
    • D05B85/02—Needles with slotted eyes, i.e. with a slit leading to the eye for thread insertion

Definitions

  • Robert E. Smith ABSTRACT A sewing machine needle with the pointed extremity formed with a slot extending upwardly into the bottom of the needle eye to define a minor point atone side of and above the main needle point.
  • the slot is nonplanar in transverse configuration and provides a concave recess into the side of the main needle point into which recess the minor point is bent.
  • a self-threading sewing machine needle is provided by including on a conventional needle, a slot either arcuate, V-shaped or otherwise nonplanar in transverse configuration, which extends from near the needle point upwardly to the bottom of the needle eye. The minor point on the side of the needle formed by the slot is then bent into the concave recess formed by the nonplanar slot.
  • the single minor point on the needle cannot pick because it is located within a concave recess into which the stretched work fabric fibers will not enter.
  • FIG. 1 is an elevational view of the tip of a sewing machine needle taken from a direction exposing the needle eye and showing the threading slot as it is formed in the needle,
  • FIG. 2 is an elevational view of the tip of the sewing machine needle as in FIG. 1 but illustrating the minor point formed by the slot after it has been polished and bent,
  • FIG. 3 is a right side elevational view of the tip of the sewing machine needle of FIG. 2,
  • FIG. 4 is an elevational view of a sewing machine needle made as illustrated in FIG. 2 and shown secured in a sewing machine needle clamp with a thread loop in place on the needle point and drawn to one side in preparation for insertion of the thread into the needle eye,
  • FIG. 5 is a cross-sectional view of the needle taken substantially along line 5-5 of FIG. 2
  • FIG. 6 is a cross-sectional view of the needle taken substantially along line 6-6 of FIG. 2.
  • the needle 11 includes an enlarged butt 13 adapted to be received in a needle clamp 14 carried on a sewing machine needle bar (not shown).
  • a needle blade 15 preferably of cylindrical form and provided on diametrically opposite sides with lengthwise grooves 16 and 17.
  • One of the grooves 16, referred to as the long groove extends from the needle butt 13 to the tapered point 18 of the needle below the needle eye 12, while the other groove 17 which is referred to as the short groove is formed only in the vicinity of the needle eye.
  • the grooves 16 and 17 accommodate the needle thread during work penetration by the needle in sewing and influence, for instance, the formation of loops in the proper limb of the needle thread for desired cooperation with the sewing machine loop taker.
  • the sewing machine needle which as thus far described can be threaded by passing an extremity of a sewing thread endwise through the needle eye, is made self-threading in accordance with this invention by the provision in the tapered point 18 of a thread entry slot 20 extending from slightly above the tip 21 of the tapered point 18 to the bottom of the needle eye 12.
  • the thread entry slot is nonplanar in transverse configuration and may, for instance, be circular in form.
  • the slot 20 may be cut by a tubular cutter having substantially the same outer diameter D as the needle shank 15. A portion of such a cutter is shown at 25 in FIG. 6. This cut may be formed readily by the known techniques of electrodeposition milling. It will be appreciated that the transverse configuration of the slot is not limited to a circular shape but might also be formed in a V- shape or the like which would result in formation of a concave recess 26 in the tapered needle point 18 as best shown in FIG. 6.
  • the lips 27 and 28, one at each side of the concave recess in the needle point 18 provide protective shields across which the fibers of a work fabric can stretch as along line X-X of FIG. 6 during needle penetration so that the recess 26 defines a pocket in which the work fabric fibers do not enter.
  • Formation of the thread entry slot 20 defines alongside the main needle point 18, a minor point 30 which terminates above the main needle point 18 and as shown in FIG. 1 proud of the recess 26 immediately after the slot 20 is cut.
  • the minor point 30 which is shortened somewhat by polishing and deburring, is bent inwardly toward the main needle point 18 until the minor point 30 is disposed within the recess 26 as shown clearly in FIGS. 2 and 6. In this way, the minor point is shielded against picking strands of work fabric during needle penetration.
  • H0. 4 illustrates the manner in which a thread T may be inserted laterally into the needle eye 20.
  • a loop of the thread is placed around the needle shank and drawn down onto the main needle point 18 below the minor point 30.
  • the thread loop is then drawn sideways to the left as viewed in FIG. 4 to flex the main needle point away from the minor point 30 and open the thread entry slot 20.
  • the thread T is drawn upwardly into the slot 20 and into the needle eye 12.
  • the main needle point 18 will return to the position shown in FIG. 2 and the thread will be confined in the needle eye.
  • a self-threading sewing machine needle including a blade fonned transversely with a thread accommodating eye and with a tapered extremity beneath said threaded accommodating eye defining a main-needle point, said needle being fonned with a thread entry slot extending from one side of said main needle point and leading upwardly into the bottom of said thread accommodating eye, said slot being nonplanar in transverse configuration providing a concave recess into the side of the main needle point and defining a minor point at one side of said needle, said minor point being bent inwardly toward said tapered extremity and into a position completely within said concave recess.
  • a self-threading needle as set forth in claim 1 in which said needle blade is formed with diametrically opposed lengthwise grooves between which grooves said thread accommodating eye extends, said thread entry slot extending upwardly along said grooves and into the bottom of said thread accommodating eye.
  • a self-threading needle as set forth in claim I in which the thread entry slot is circular in transverse configuration and has an outside diameter substantially equal to that of the needle blade.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US34162A 1970-05-04 1970-05-04 Self-threading needles Expired - Lifetime US3581688A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3416270A 1970-05-04 1970-05-04

Publications (1)

Publication Number Publication Date
US3581688A true US3581688A (en) 1971-06-01

Family

ID=21874687

Family Applications (1)

Application Number Title Priority Date Filing Date
US34162A Expired - Lifetime US3581688A (en) 1970-05-04 1970-05-04 Self-threading needles

Country Status (6)

Country Link
US (1) US3581688A (de)
BR (1) BR7102648D0 (de)
CH (1) CH520222A (de)
DE (1) DE2119485A1 (de)
FR (1) FR2090999A5 (de)
GB (1) GB1345035A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862611A (en) * 1973-12-12 1975-01-28 Maruzen Sewing Machine Sewing machine needle
US3938224A (en) * 1973-01-16 1976-02-17 Etablissements Delahousse Et Bruant Devices for use in the manufacture of articles of upholstery
US5564212A (en) * 1995-06-09 1996-10-15 Phelps; Don R. Fishing rod wrapping device needle
US6224618B1 (en) * 1999-10-20 2001-05-01 Dennis P. Gordon Device for treatment of spider veins
US20090318958A1 (en) * 2008-06-17 2009-12-24 Ochiai Derek H Method of suturing
US20100229772A1 (en) * 2009-03-13 2010-09-16 PST Innovations LLC Open eye sewing needle
US20130184523A1 (en) * 2012-01-12 2013-07-18 Microline Surgical, Inc., Instrument tip having wire retention slot
US10716348B2 (en) 2016-04-05 2020-07-21 Irma Faye Dozier Wig making tools and kit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210389A (en) * 1987-09-30 1989-06-07 Terence Bernard Galligan Improvements in needles
DE19837144A1 (de) * 1998-08-17 2000-02-24 Juergen Buerger Nähnadel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US286014A (en) * 1883-10-02 jenkins

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US286014A (en) * 1883-10-02 jenkins

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938224A (en) * 1973-01-16 1976-02-17 Etablissements Delahousse Et Bruant Devices for use in the manufacture of articles of upholstery
US3862611A (en) * 1973-12-12 1975-01-28 Maruzen Sewing Machine Sewing machine needle
US5564212A (en) * 1995-06-09 1996-10-15 Phelps; Don R. Fishing rod wrapping device needle
US6224618B1 (en) * 1999-10-20 2001-05-01 Dennis P. Gordon Device for treatment of spider veins
US20090318958A1 (en) * 2008-06-17 2009-12-24 Ochiai Derek H Method of suturing
US8403947B2 (en) 2008-06-17 2013-03-26 Derek H. OCHIAI Method of suturing
US20100229772A1 (en) * 2009-03-13 2010-09-16 PST Innovations LLC Open eye sewing needle
US8151720B2 (en) 2009-03-13 2012-04-10 PST Innovations, LLC Open eye sewing needle
US20130184523A1 (en) * 2012-01-12 2013-07-18 Microline Surgical, Inc., Instrument tip having wire retention slot
EP2614781A3 (de) * 2012-01-12 2014-12-03 Microline Surgical, Inc Instrumentspitze mit Drahtrückhalteschlitz
US10716348B2 (en) 2016-04-05 2020-07-21 Irma Faye Dozier Wig making tools and kit

Also Published As

Publication number Publication date
GB1345035A (en) 1974-01-30
BR7102648D0 (pt) 1973-04-12
DE2119485A1 (de) 1971-12-09
FR2090999A5 (de) 1972-01-14
CH520222A (de) 1972-03-15

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SINGER SPEZIALNADELFABRIK GMBH, BAHNHOFSTR. 41-79,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SINGER COMPANY, THE, A CORP OF NJ;REEL/FRAME:004647/0795

Effective date: 19861217

AS Assignment

Owner name: SSMC INC., A CORP. OF DE, CONNECTICUT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SINGER COMPANY, THE;REEL/FRAME:005041/0077

Effective date: 19881202