US3513792A - Device for automatically sewing the toes of seamless stockings - Google Patents

Device for automatically sewing the toes of seamless stockings Download PDF

Info

Publication number
US3513792A
US3513792A US716492A US3513792DA US3513792A US 3513792 A US3513792 A US 3513792A US 716492 A US716492 A US 716492A US 3513792D A US3513792D A US 3513792DA US 3513792 A US3513792 A US 3513792A
Authority
US
United States
Prior art keywords
stocking
template
clamping member
toe
sewing
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
US716492A
Other languages
English (en)
Inventor
Kurt Rossler
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3513792A publication Critical patent/US3513792A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B21/00—Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. programme-controlled for sewing collars, for attaching pockets
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B23/00—Sewing apparatus or machines not otherwise provided for
    • D05B23/007—Sewing units for assembling parts of knitted panties or closing the stocking toe part
    • D05B23/009—Toe closers
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2207/00—Use of special elements
    • D05D2207/02—Pneumatic or hydraulic devices
    • D05D2207/04—Suction or blowing devices
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2209/00—Use of special materials
    • D05D2209/06—Use of special materials with low friction

Definitions

  • the invention relates to a method and a device for automatically sewing the toes of seamless stockings.
  • the stocking is drawn full length over a form and the toe is straightened by adjusting it to a template.
  • the toe of the stocking on the form is; then clamped into a mechanism which transfers the form with the stocking thereon to the sewing machine. Subsequently, the stocking has to be removed from the form by hand.
  • the object of the present invention is a method and a device for automatically sewing the toes of seamless stockings without having to pull the whole stocking over and from a form, respectively.
  • the device according to the invention comprises a template which is pivotable and axially movable preferably by pneumatic means and a horizontally rotatable clamping device arranged in front of the needle of the sewing machine.
  • FIGS. 1 to 4 are top elevation views of the inventive device, each showing a different operative position
  • FIGS. 5 and 6 are side elevation views of the clamping device on an enlarged scale
  • FIGS. 7 and 8 each show a stocking closed at the toe in accordance with the invention.
  • a horizontal template 5- attached to a guide rod 14 is so pivoted about a point of rotation 6 on the axis of the rod 14 that it may be moved in a horizontal plane from its initial position spaced from a clamping member 1, as shown in FIG. 1, to a position below the clamping member 1, as shown in FIG. 2.
  • the template 5 may also be retracted lengthwise with the guide rod 14 toward the point of rotation 6.
  • These movements of the template 5 are effected by the following structural elements.
  • the template 5 is attached to one end of the rod 14 which latter is so arranged and guided that the template is kept in a horizontal position.
  • the guide rod 14 is axially movable in both directions by means of pistons in a pneumatic cylinder 15 arranged on the other end of the rod 14. Both elements, guide rod 14 and cylinder 15, are pivotally mounted about the point of rotation 6 constructed as a bearing which itself is fixedly attached by means of a horizontal supporting beam 16 to the sewing machine 28.
  • the pivotal movement of the template 5 is effected by a second piston in a second pneumatic cylinder 18 by way of the piston rod 19, a joint 20 and a lever 17 connected to the bearing at 6.
  • One end of the cylinder 18 is pivotally mounted in a bearing 21 which is also fixedly attached to the sewing machine. Compressed air is supplied to the pneumatic cylinders 15 and 18 in known manner by means of hoses, one of which is indicated at 22.
  • the clamping member 1 is mounted on the lower end of a vertical shaft 23 which may be raised or lowered by a piston in a pressure cylinder 7 mounted on a holder 2. ⁇ .
  • the pressure cylinder 7 is connected in known manner to a source of compressed air which is, for instance, controlled by a solenoid valve.
  • a friction disc 8 Fixedly attached to the shaft 23 above the horizontal clamping member 1 is a friction disc 8 which is provided at its edge with two diametrically opposing ball bearings 11.
  • a friction wheel 9 rotatable in a vertical plane and fixedly attached to the horizontal shaft of a drive motor 24 extends into the vertical space formed between the friction disc 8 and the clamping member or plate 1.
  • the clamping member '1 is preferably provided at its underside with a foam rubber sheet 25.
  • the circumference of the circular clamping plate 1 is provided with two diametrically opposed arcuate recesses 3.
  • the top surface of the base plate 10 is either smoothly polished or is provided with a coating of a smooth material, such as hard plastics, glass, or the like, so that, when the clamping member 1 rotates, the stocking adhering to the foam rubber sheet 25 can slide over the smooth base plate 10.
  • a smooth material such as hard plastics, glass, or the like
  • the horizontal friction plate 8 arranged on the same shaft 23 comes with its lower face into contact with the circumference of the friction wheel 9 rotated by the drive motor 24, so that the friction disc 8, the shaft 23 and therewith the clamping member 1 are rotated and thereby the toe portion of the stocking is moved past the needle 4 and the cutting member of the sewing machine 28.
  • a sewing machine As a sewing machine is used a commercially available machine equipped with a material cutting'device and a loop separating device, for instance a two-thread over edging machine capable of producing an elastic seam.
  • the base plate 10 is preferably crescent-shaped.
  • the length of the stocking lies during the sewing process behind the crescent-shaped plate 10 so that only the outer edge of the toe is held by the clamping member 1. This dispenses with a special withdrawing means for the stockings in the direction of the axis of rotation.
  • the recesses 3 provided on the clamping member I serve the purpose that, when the clamping member 1 is raised, it will not harm the seam-forming parts of the sewing machine 28, i.c. the needle 4.
  • the circumferential edge of the clamping member 1 tapers slightly upwardly toward the axis of rotation so that also in the lowered position of the clamping member 1 the seam-forming parts of the sewing machine 28 will not be impaired.
  • the ball bearing 11 projecting from the friction disc 8 actuates 'a pressure switch 12 by means of which the pressure cylinder 7 is deaerated, so that the shaft 23 is raised by means of a spring mechanism, the stocking is released and the rotation of the shaft 23 is stopped.
  • the operation of the device is as follows. A stocking a with the toe portion still open is manually pulled over the template and is straightened out. By a foot operated switch the solenoid valve is actuated so that compressed air is conducted into the cylinder 18 whereby the rod 19 is pushed forward and a pivotal movement of the template 5 in the direction of the clamping member 1 takes place on account of the lever 17 and the joint 20. In the end position of the template a contact is automatically operated which in turn opens the solenoid valve for supplying compressed air to the pressure cylinder 7. The latter urges the clamping member 1 against the template 5. When this takes place, the pressure cylinder 7 actuates another contact which controls a solenoid valve for the pressure cylinder by way of a hose 22.
  • the base plate 10 is perforated.
  • a second pressure cylinder 13 urges a plate provided with rubber protrusions 27 against the underside of the base plate 10.
  • the rubber protrusions 27 which correspond to the holes in the base plate 10, enter into and project through these holes and hold the stocking a in place so that the template 5 may now be withdrawn without the stocking.
  • the clamping member 1 After the friction disc 8 has become separated from the friction wheel 9, i.e. upon completion of the first sewing operation, the clamping member 1 has to be rotated the remaining one eighth of the first half revolution.
  • the invention is substantially less complex than all other known devices of this kind.
  • it is no longer necessary to pull the whole stocking over a form but a toe portion of about 5 to 6 cm. length is sufficient so that the removal operation of the stocking from the form is dispensed with, too.
  • the stocking may simply be removed by conventional suction means, for example a suction tube.
  • suction means for example a suction tube.
  • any well known turning devices may be used any well known turning devices.
  • the stockings illustrated in FIGS. 7 and 8 have the usual leg length 31, reinforced top portion 32 and toe portions 29 and 30, respectively.
  • a device for automatically sewing the toes of seamless stockings including a template pivotally arranged in a horizontal plane and onto which solely the unsewn toe of a stocking is drawn, a multi-part clamping device rotatable about a vertical axis for clampingly engaging said template with said toe of the stocking thereon, means for moving said template in a horizontal plane with said toe of the stocking thereon laterally into said clamping device and for withdrawing said template from said toe of said stocking by a straight movement when said toe has been clamped in said clamping device, a sewing mechanism, means for moving said clamping device with said toe of said stocking thereon laterally past said sewing mechanism for sewing said toe of said stocking, an axially movable and rotatable vertical shaft on the lower end of which said clamping device is fixedly attached, said shaft also having fixedly attached thereto above said clamping device a horizontally disposed friction disc the outer circumferential edge of which is provided with a ball bearing, a motor
  • a device including an inclined surface in the proximity of said ball bearing onto which surface said ball bearing is moved upon the actuation of said switch and the resulting upward movement of said vertical shaft, whereby said friction disc, said vertical shaft and said clamping device are rotated another predetermined distance.
  • said clamping device comprises a clamping plate attached to the lower end of said axially movable and rotatable vertical shaft, a horizontal base plate provided with perforations arranged below said clamping plate, said base plate being engaged from below by another plate having rubber protrusions which at the moment the clamping plate has been lowered onto said template with said toe of said stocking thereon will extend through said perforations in said base plate and firmly secure said toe of said stocking for the purpose of removing said template therefrom.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Treatment Of Fiber Materials (AREA)
US716492A 1967-04-01 1968-03-27 Device for automatically sewing the toes of seamless stockings Expired - Lifetime US3513792A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DER0045653 1967-04-01
DER0047416 1967-11-22

Publications (1)

Publication Number Publication Date
US3513792A true US3513792A (en) 1970-05-26

Family

ID=25992080

Family Applications (1)

Application Number Title Priority Date Filing Date
US716492A Expired - Lifetime US3513792A (en) 1967-04-01 1968-03-27 Device for automatically sewing the toes of seamless stockings

Country Status (11)

Country Link
US (1) US3513792A (de)
AT (1) AT292433B (de)
BE (1) BE713033A (de)
CH (1) CH462603A (de)
ES (1) ES350869A1 (de)
FR (1) FR1557412A (de)
GB (1) GB1191188A (de)
LU (1) LU55542A1 (de)
NL (1) NL144682B (de)
NO (1) NO126333B (de)
SE (1) SE345486B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738294A (en) * 1967-10-02 1973-06-12 Anderson H Apparatus for closing the toe of a stocking
US3762348A (en) * 1970-10-31 1973-10-02 Kochs Adler Ag Device for top stitching cuffs or the like workpiece parts
US3797422A (en) * 1970-12-24 1974-03-19 Brother Kogy Kk Work piece feeding device for sewing machines or the like
US3811390A (en) * 1971-03-18 1974-05-21 Andersen H Apparatus for the closing of the toe of a circularly knit stocking along a looper-line
US3859938A (en) * 1973-02-05 1975-01-14 Takatori Machinery Works Ltd Automatic apparatus for closing the toe of a seamless stocking
US3886876A (en) * 1973-04-27 1975-06-03 Andersen Hans Christian Apparatus for the closing of the toe of a circularly knit stocking
FR2341685A1 (fr) * 1976-02-20 1977-09-16 Mabi Srl Machine semi-automatique a coudre la pointe des bas, specialement du type des collants
FR2428697A1 (fr) * 1978-06-13 1980-01-11 Elbetti Meri Machine a confectionner des collants pourvus d'un soufflet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134551A (en) * 1983-01-18 1984-08-15 Peter Arthur Taylor Sewing Machines

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2142476A (en) * 1934-06-23 1939-01-03 Progress Specialty Company Templet and operating means therefor for the manufacture of cuffs
US3182616A (en) * 1962-10-11 1965-05-11 William C Cremer Sewing machine with pattern attachment
US3191558A (en) * 1963-09-23 1965-06-29 Ralph M Graves Hosiery feeder
US3327664A (en) * 1963-04-29 1967-06-27 Detexomat Ltd Automatic toe-closing of stockings
US3351033A (en) * 1963-04-26 1967-11-07 Joseph E Kienel Apparatus and method for seaming hosiery blanks
US3351032A (en) * 1965-02-08 1967-11-07 Ernest M Junkins Work holding and transferring device
US3358626A (en) * 1965-10-23 1967-12-19 Ivanhoe Res Corp Automatic sewing machine system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2142476A (en) * 1934-06-23 1939-01-03 Progress Specialty Company Templet and operating means therefor for the manufacture of cuffs
US3182616A (en) * 1962-10-11 1965-05-11 William C Cremer Sewing machine with pattern attachment
US3351033A (en) * 1963-04-26 1967-11-07 Joseph E Kienel Apparatus and method for seaming hosiery blanks
US3327664A (en) * 1963-04-29 1967-06-27 Detexomat Ltd Automatic toe-closing of stockings
US3191558A (en) * 1963-09-23 1965-06-29 Ralph M Graves Hosiery feeder
US3351032A (en) * 1965-02-08 1967-11-07 Ernest M Junkins Work holding and transferring device
US3358626A (en) * 1965-10-23 1967-12-19 Ivanhoe Res Corp Automatic sewing machine system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738294A (en) * 1967-10-02 1973-06-12 Anderson H Apparatus for closing the toe of a stocking
US3762348A (en) * 1970-10-31 1973-10-02 Kochs Adler Ag Device for top stitching cuffs or the like workpiece parts
US3797422A (en) * 1970-12-24 1974-03-19 Brother Kogy Kk Work piece feeding device for sewing machines or the like
US3811390A (en) * 1971-03-18 1974-05-21 Andersen H Apparatus for the closing of the toe of a circularly knit stocking along a looper-line
US3859938A (en) * 1973-02-05 1975-01-14 Takatori Machinery Works Ltd Automatic apparatus for closing the toe of a seamless stocking
US3886876A (en) * 1973-04-27 1975-06-03 Andersen Hans Christian Apparatus for the closing of the toe of a circularly knit stocking
FR2341685A1 (fr) * 1976-02-20 1977-09-16 Mabi Srl Machine semi-automatique a coudre la pointe des bas, specialement du type des collants
FR2428697A1 (fr) * 1978-06-13 1980-01-11 Elbetti Meri Machine a confectionner des collants pourvus d'un soufflet

Also Published As

Publication number Publication date
LU55542A1 (de) 1968-05-03
ES350869A1 (es) 1969-05-16
GB1191188A (en) 1970-05-06
NL6804267A (de) 1968-10-02
NO126333B (de) 1973-01-22
FR1557412A (de) 1969-02-14
CH462603A (de) 1968-09-15
BE713033A (de) 1968-07-31
SE345486B (de) 1972-05-29
AT292433B (de) 1971-08-25
NL144682B (nl) 1975-01-15

Similar Documents

Publication Publication Date Title
US3513792A (en) Device for automatically sewing the toes of seamless stockings
US3327664A (en) Automatic toe-closing of stockings
US3859938A (en) Automatic apparatus for closing the toe of a seamless stocking
US3738294A (en) Apparatus for closing the toe of a stocking
US3875880A (en) Apparatus adapted for use in the toe closing of hosiery
JPS6132627Y2 (de)
JPS5940475B2 (ja) ミシンの布押え装置
US4538534A (en) Apparatus and method for processing hosiery blanks
US5131336A (en) Waist part cloth guiding device for a sewing machine
US4359009A (en) Means for turning jigs on sewing machines
US3443540A (en) Thread trimming device for lockstitch sewing machine
JPH10513394A (ja) ロッカー・パッチ取付装置
US3452691A (en) Apparatus for closing stocking toes
US3921550A (en) Guide and sewing device for fabric layers along a shaped edge
US3847101A (en) Sewing machine having thread severing device
US3890911A (en) Automatic hemming machine
GB1566078A (en) Button siwing machine
US3650227A (en) Fur sewing machine
US4061097A (en) Unit for automatically sewing the opposite edges of piece of fabric
US5531173A (en) Apparatus for positioning the foot portion of tubular knitted articles
US3439637A (en) Apparatus to feed superposed webs for seaming
US3322081A (en) Material stitching and guiding machine
US2170948A (en) Sewing machine
US3894670A (en) Shoe upper fastening device
US4111137A (en) Cuff making machine