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US3685072A - Shoe-lasting machine - Google Patents

Shoe-lasting machine Download PDF

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Publication number
US3685072A
US3685072A US91990A US3685072DA US3685072A US 3685072 A US3685072 A US 3685072A US 91990 A US91990 A US 91990A US 3685072D A US3685072D A US 3685072DA US 3685072 A US3685072 A US 3685072A
Authority
US
United States
Prior art keywords
wiping
last
shank
leather
carrier
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
US91990A
Other languages
English (en)
Inventor
Herbert Schindler
Gerhard Winter
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.)
Schon und Cie GmbH
Schoen und Cie GmbH
Original Assignee
Schoen und Cie GmbH
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 Schoen und Cie GmbH filed Critical Schoen und Cie GmbH
Application granted granted Critical
Publication of US3685072A publication Critical patent/US3685072A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00—Lasting machines
    • A43D21/16—Lasting machines with lasting pincers and toe- or heel-embracing wipers
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00—Lasting machines
    • A43D21/12—Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last
    • A43D21/125—Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last with a plurality of pincers
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00—Lasting machines
    • A43D21/18—Lasting machines with lasting pincers and straight-acting wipers, also for forming the shank portions of shoes

Definitions

  • a shoe-lasting machine for wiping in a shank over a last and insole including a pivotally mounted last-carrier, shears for tucking in a heel portion, and a plurality of wiping members for an shank area of an upper leather portion which includes a plurality of wiper elements mounted on an assembly carrier adapted for forward motion towards the last.
  • the assembly is supported rotatably about its axis which substantially coincides with a trailing edge of the heel portion shears in their operating position.
  • Contactor levers are provided which are preferably mounted on the wiper assembly carrier and which after sensing the last impart a rotary movement to the assembly carrier which helps to adapt an inclination of the wiper elements to a predetennined shank curvature of the last.
  • the rotatably supported assembly carrier also carries a device for stretching the leather prior to the engagement of the wiping members for the shank area, the inclination of the leather-stretching device thus being also determined by the inclination of the assembly carrier itself.
  • This invention relates to a shoe-lasting machine for wiping in the shank over the last and insole, and in particular to improvements in the wiping device itself.
  • the shoe-lasting machine based upon the present invention is characterized in that the carrier means for the wiping devices is so supported that it is rotatable around an axis which substantially coincides with the trailing edge of the heel portion shears in their engaged position.
  • the curvature is adjusted by supporting two fingers against the last body.
  • the presetting carried out by con tactor levers is supported by equalizer springs, articulation of the shear plates and rotatable joumalling for the arms supporting the shear plates.
  • FIG. 1 is a vertical section through a cement-lasting machine pursuant to the invention
  • FIG. 2 shows the carrier device of the present invention for the tools wiping the shank portion of the upper leather, the left-hand side of the carrier being shown in section;
  • FIG. 3 is a plan view of the device shown in FIG. 2;
  • FIG. 4 is a side-view of the device shown in FIG. 3;
  • FIG. 5 shows in section the structure of the wiping device in enlarged scale
  • FIG. 6 shows a top plan view of a part-arrangement of the wiping tools disposed on one side
  • FIG. 7 is a cross-section through an individual wiping plate and its mounting support.
  • FIG. 8 shows an individual tuck-in plate in operating position.
  • a last-carrier 5 is supported in the bottom part of a frame 1 by a pivot mounting (not shown in detail).
  • the last carrier 5 is movable from its initial position, indicated by the dash-dot line 5, into its operating position shown in the figure by conventional means of a hydraulic motor 2, a spindle drive 3 and shaft 4.
  • the last carrier 5 can be raised by way of a conventional cylinder 6 whereby it forces the last 7 against a support 8.
  • the last 7 during its upward movement is forced against two contactor levers l8, 19.
  • This causes a rotation of the entire shank area wiping assembly about pivot pins and 20, which are arranged at the same level as the trailing edges of the'closed shears 22.
  • the contactor levers l8, 19 are adjustable for the purpose of adjusting the angle of traverse associated with the given last position. Adjustment is effected by means of a screw 26 seated in a pin 27 (FIG. 4). Following the pivoting movement brought about by the contactor levers 18, 19 and involving the entire shank area wiping assembly, the latter is restrained on both sides by pistons 23 and 23 which move in cylinders 24 and 24 respectively by way of levers and 25 respectively (FIG. 3). The wiping assembly for the shank area is now fixed and secured in a position which corresponds approximately to the curvature of last 7.
  • a lever is caused to swivel in response to a force exerted by a conventional hydraulic cylinder 9 (FIG. 1), whereby a heelband 11 is stretched around the heel portion of the last 7.
  • articulated pressure blocks l4, 14' move towards the last 7 on both sides being forced in that direction by pistons 12, 12 moving in cylinders 13 and 13 (FIG. 2).
  • the articulated pressure blocks l4, 14' are pivotably supported in pins l5, l5 respectively and after coming into contact with the last 7 flip over into a position, as shown by pressure block 14 in FIG. 2, against a bias exerted by a helical spring 16 and 16', respectively.
  • the tool assembly proper which advances on both sides of the last 7 includes arms 36 on each side thereof, which are tiltably supported on associated pins 38, each of the arms 36 carries one or a plurality of rotatably supported forked pieces 39, the latter in turn carrying one or a plurality of wiping plates 28. While the pistons 29, 29 move the tool assembly towards the last 7, the pistons 35 which travel vertically in their respective cylinders 34 on both sides of the last 7, are put under a weak oil pressure whereby the arms 36 are each pivoted against the bias exerted by an associated spring 37 about a pivot point formed by the pins 38, as shown best in FIG. 5.
  • a plurality of arms 36 can be arranged on both sides of the device.
  • the forked pieces 39 are first maintained in a certain initial position by two bias springs 40 (FIGS. and 6). At their outer extremities the forked pieces 39 are provided with rounded, cam-like projections 42 which serve as supports for the inner faces 43 of the tuck-in plates 28. To provide a necessary degree of freedom therefor, each of the two angled portions of the wiping plates 28 possess a keyway 44 which interacts with a pin threading the extremity of a forked piece 39 (FIGS. 7 and 8).
  • a shoe-lasting machine for wiping in a shank over a last and insole, said machine comprising a last-carrier, shears for shearing a heel portion, a plurality of wiping means for a shank area of an upper leather, said wiping means including a plurality of wiping elements mounted on an assembly carrier adapted for forward motion towards the last, means rotatably supporting said assembly carrier about its axis which substantially coincides with a trailing edge of said heel portion shears in their operating position, and contactor levers mounted on said wiping assembly carrier and which after sensing the last, said contactor levers impart a rotary movement to said assembly carrier which helps to adapt an inclination of said wiping elements to a predetermined curvature of the last.
  • a machine according to claim 1 characterized in that all machine elements and assemblies are hydrauli cally actuated.
  • a shoe-lasting machine for wiping in a shank over a last and insole, said machine comprising a last-carrier, shears for shearing a heel portion, a plurality of wiping means for a shank area of an upper leather, said wiping means including a plurality of wiping elements mounted on an assembly carrier adapted for forward motion towards the last, means rotatably supporting said assembly carrier about its axis which substantially coincides with a trailing edge of said heel portion shears in their operating position, said wiping elements including plates mounted in pairs of forked pieces defining tips, said plates being supported on rounded cam-like projections provided at said tips of said forked pieces when coming into contact with a workpiece on the last.
  • each of said forked pieces are maintained in a specific initial position by two bias springs.
  • a shoe-lasting machine for wiping in a shank over a last and insole comprising a last-carricr, shears for shearing a heel portion, a plurality of wip ing means for a shank area of an upper leather, said wiping means including a plurality of wiping elements mounted on an assembly carrier adapted for forward motion towards the last, means rotatably supporting said assembly carrier about its axis which substantially coincides with a trailing edge of said heel portion shears in their operating position, said rotatably supported assembly carrier also carrying a device for stretching leather prior to engagement of said wiping means for the shank area, an inclination of said leatherstretching device being determined by an inclination of said assembly itself.
  • a shoe-lasting machine wherein longitudinal axes of hydraulic cylinders for moving said wiping means into their operating positions and longitudinal axes of cylinders for moving said leather-stretching device into its operating position are parallel to each other, pistons actuating said leatherstretching device are provided with means for preventing any torsional displacement thereof with respect to their associated cylinders.
  • a shoe-lasting machine wherein said leather-stretching device engages a workpiece by means of movable pressure blocks supported tiltably about pin means, said pin means permit said pressure blocks when coming into abutment against the last to slide thereon against bias pressure exerted by spring means and thus smoothly stretch the leather.
  • a shoe-lasting machine for wiping a shank over a last and insole, the machine comprising a last-carrier, wipers for operative association with a heel portion, shank-wiping means for operative association with a shank area of an upper leather, said shank wiping means including a plurality of wiping elements, hydraulic means for moving said wiping elements toward the last, and a common bearing support upon which both said shank wiping means and associated hydraulic means are mounted, said common bearing support having an axis about which it is pivotally supported for pivotal movement in response to uplift of the last into engagement therewith, said axis substantially coinciding with a trailing edge of said shank wiping means when the latter is in a wiping position.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Combined Means For Separation Of Solids (AREA)
US91990A 1969-11-27 1970-11-23 Shoe-lasting machine Expired - Lifetime US3685072A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1959560A DE1959560B2 (de) 1969-11-27 1969-11-27 Schuhzwickmaschine

Publications (1)

Publication Number Publication Date
US3685072A true US3685072A (en) 1972-08-22

Family

ID=5752235

Family Applications (1)

Application Number Title Priority Date Filing Date
US91990A Expired - Lifetime US3685072A (en) 1969-11-27 1970-11-23 Shoe-lasting machine

Country Status (5)

Country Link
US (1) US3685072A (de)
JP (1) JPS5010180B1 (de)
DE (1) DE1959560B2 (de)
FR (1) FR2068687B1 (de)
HU (1) HU163954B (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831216A (en) * 1973-08-06 1974-08-27 Int Shoe Machine Corp Method and machine for cement lasting
US3868737A (en) * 1973-01-22 1975-03-04 Usm Corp Method and apparatus for combined lasting of the toe, ball and shank areas of shoes
USRE29005E (en) * 1973-08-06 1976-10-19 International Shoe Machine Corporation Method and machine for cement lasting
US4006504A (en) * 1974-08-27 1977-02-08 Usm Corporation Automatic heel and side lasting shoe machines
US4095302A (en) * 1975-09-18 1978-06-20 C. & J. Clark Ltd. Manufacture of shoes
US4266311A (en) * 1978-06-19 1981-05-12 Schon & Cie Gmbh Maschinenfabrik Machine for reeving and/or lasting shoes in the heel and ankle part
US4381573A (en) * 1980-07-02 1983-05-03 Usm Corporation Shoe upper conforming machine
EP0091300A1 (de) * 1982-04-02 1983-10-12 British United Shoe Machinery Limited Seitenzwickmaschine
US4728378A (en) * 1985-02-26 1988-03-01 Officine Meccaniche Molina & Bianchi, S.P.A. Method of gluing, to the insole of a footwear blank, the sides of a respective upper, and a side-lasting machine for implementing the method
EP1661476A1 (de) * 2004-11-26 2006-05-31 OFFICINE MECCANICHE MOLINA & BIANCHI S.p.A. Schuhzwickmaschine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917682C2 (de) * 1979-05-02 1987-05-07 Schön & Cie GmbH, 6780 Pirmasens Verfahren zum Einscheren bzw. Einzwicken des Schaftes von aufgeleistetem Schuhwerk im Fersen- und Gelenkbereich
DE3042826A1 (de) * 1979-05-02 1982-06-09 Schön & Cie GmbH, 6780 Pirmasens Maschine zum einscheren und/oder zwicken von schuhen im fersen- und gelenkteil
DE3314906A1 (de) * 1983-04-25 1984-10-25 Deutsche Vereinigte Schuhmaschinen Gmbh, 6000 Frankfurt Verfahren und vorrichtung zum seitenzwicken von aufgeleisteten schuhen mit einer seiten-tacks-einschlagvorrichtung
DE3438297A1 (de) * 1983-11-08 1985-06-27 Internationale Schuh-Maschinen Co Gmbh, 6780 Pirmasens Vorrichtung zum seitenzwicken einer schuheinheit
DE3448119C2 (en) * 1983-11-08 1990-01-18 Internationale Schuh-Maschinen Co Gmbh, 6780 Pirmasens, De Device for lateral lasting of a shoe unit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868737A (en) * 1973-01-22 1975-03-04 Usm Corp Method and apparatus for combined lasting of the toe, ball and shank areas of shoes
US3831216A (en) * 1973-08-06 1974-08-27 Int Shoe Machine Corp Method and machine for cement lasting
USRE29005E (en) * 1973-08-06 1976-10-19 International Shoe Machine Corporation Method and machine for cement lasting
US4006504A (en) * 1974-08-27 1977-02-08 Usm Corporation Automatic heel and side lasting shoe machines
US4095302A (en) * 1975-09-18 1978-06-20 C. & J. Clark Ltd. Manufacture of shoes
US4266311A (en) * 1978-06-19 1981-05-12 Schon & Cie Gmbh Maschinenfabrik Machine for reeving and/or lasting shoes in the heel and ankle part
US4381573A (en) * 1980-07-02 1983-05-03 Usm Corporation Shoe upper conforming machine
EP0091300A1 (de) * 1982-04-02 1983-10-12 British United Shoe Machinery Limited Seitenzwickmaschine
US4728378A (en) * 1985-02-26 1988-03-01 Officine Meccaniche Molina & Bianchi, S.P.A. Method of gluing, to the insole of a footwear blank, the sides of a respective upper, and a side-lasting machine for implementing the method
EP1661476A1 (de) * 2004-11-26 2006-05-31 OFFICINE MECCANICHE MOLINA & BIANCHI S.p.A. Schuhzwickmaschine

Also Published As

Publication number Publication date
JPS5010180B1 (de) 1975-04-18
HU163954B (de) 1973-11-28
DE1959560A1 (de) 1971-06-03
FR2068687B1 (de) 1973-02-02
FR2068687A1 (de) 1971-08-27
DE1959560B2 (de) 1980-12-04

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