US3678522A - Shaping machine for shoe uppers - Google Patents

Shaping machine for shoe uppers Download PDF

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Publication number
US3678522A
US3678522A US112121A US3678522DA US3678522A US 3678522 A US3678522 A US 3678522A US 112121 A US112121 A US 112121A US 3678522D A US3678522D A US 3678522DA US 3678522 A US3678522 A US 3678522A
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US
United States
Prior art keywords
wiping
shoe
bolt
shaping machine
midsole
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
US112121A
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English (en)
Inventor
Karel Bumbatek
Ladislav Olser
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.)
GOTTWALDOV Z PRES STROJ NP
ZAVODY PRESNEHO STROJIRENSTVI GOTTWALDOV NARODNI PODNIK
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GOTTWALDOV Z PRES STROJ NP
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.)
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Publication date
Application filed by GOTTWALDOV Z PRES STROJ NP filed Critical GOTTWALDOV Z PRES STROJ NP
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Publication of US3678522A publication Critical patent/US3678522A/en
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00—Lasting machines
    • A43D21/003—Lasting machines with lasting strings, stretching straps or the like, for forming the shank portions of shoes

Definitions

  • This invention relates to shaping of shoe uppers over lasts for cement attaching of flanged margins of these uppers in their shank or lateral parts to margins of soles, with wiping devices arranged at both sides of the shoe.
  • a more perfect stretching is achieved on compilcated machines with a wiping device comprising a larger number of wiping assemblies, which are shaped exactly according to the shape of the last, whereby the lasting margin is first pulled by tongues and subsequently pressed by the wiping devices to the midsole.
  • the shoe on the last is in this case firmly fixed on the machine and two machines are required for pulling over and lasting the left and right shoe upper as it is impossible to use for this purpose a single machine due to substantial differences of the shank part.
  • Another drawback of these machines is, that the stretching device with the device pressing the lasting margin, to the margin of the midsole perform the operating motion as a unit so that it is impossible to stretch on a single machine shoes of different shapes and sized without lengthy and tedious adjustments.
  • Other shaping machines are using a wiping device which does not apply tongues and comprises pivotable adjustbale and slidable fingers, with stretching bands of a material, the shape of which is capable to adjust itself to conditions fixed with one end to said fingers and with the other end to an elastic suspension.
  • the stretching of the upper is in this case accomplished by frictional forces generated in the course of the sliding motion of the stretching band along the upper, whereby the frictional force is adjusted by prestressing the stretching band according to the kind of treated material.
  • a drawback of this arrangement is, that the force pressing the lasting margin to the midsole is proportional to the prestressing of the stretching band, so that for a material for uppers which does not require a big stress of the stretching bands, the lasting margin is not sufficiently pressed to the mid sole.
  • the shaping machine for shoe uppers over lasts, particularly of their shank and lateral parts with subsequent cementing of the lasting margins to the midsole comprises at least two wiping devices at both sides of the shoe with hydraulically controlled elastic or resilient wiping units with stretching bands of a material capable to adjust its shape, having one end of said stretching bands fixed to said units, while the other end of said stretching band is fixed to a resilient suspension, the machine provided furthermore with a support for supporting and securing the last with the shoe upper in the working position, the wiping devices supported swingably in the longitudinal direction of the shoe within the level of the midsole, each wiping device being composed of a number of wiping assemblies with elastic wiping units arranged side by side, individually controllable and with their position individually adjustable.
  • the wiping devices are advantageously arranged symmetrically to a central axis of the machine passing through a bolt for deviating the support of the last with the lasted shoe upper in the horizontal direction from its left to its right extreme position, said support provided with another bolt for fixing the last, said other bolt being in operation beyond the central axis of the machine.
  • the improvements obtained by the shaping machine according to this invention is in the possibility to stretch the shank or lateral part of the shoe upper of all sizes and types of shoes.
  • the machine is therefore adapted for universal application, it can be easily adjusted for the respective type and size of shoes and in addition the right and left shoe upper can be shaped on a machine with a single head without adjustment.
  • the magnitude of the stretching force is adjustable independently on the force required for cementing the lasting margins, the shoe upper is positively stretched without further auxiliary operations.
  • FIG. 1 is a top view of a wiping asembly including the last
  • FIG. 2 a section of the wiping assemblies
  • FIG. 3 a side view of a part of the wiping device
  • an angle iron 3 supported by a bolt 2 is mounted in a bracket fixed on the machine frame, with a toothed segment 5 fixed to the angle iron 3 by a screw 4, the toothed segment 3 engaging with a pinion 6 mounted together with a worm wheel 7 in a case 8 fixed to the bracket 1.
  • a worm 9 is furthermore housed in the case, connected with a rod 10, mounted in the bracket 1 and provided with a hand wheel ll.
  • Lateral uprights I2 and I3 are fixed to the angle iron 3, with guiding rods 14 and 15 arranged between said uprights I2 and I3.
  • Rollers 16 (FIG. 3) are rotatably mounted on the rod IS.
  • the angle iron 3 is provided with a number of substantially vertical T" shaped grooves 11, in which grooves the wiping units are inserted.
  • a piston 19, the piston rod of which passes through the cover 20, is arranged in a body l8, the piston rod being connected by a bolt 21 with a guiding 22 which is slidably supported in a groove 25 in the body 18 by means of rollers 23, rotating around bolts 24.
  • a support 26 is slidably arranged in the guiding 22, with a bolt 28 axially secured by a ring 29 rotatably supported in sleeves 27 of the support 26.
  • An elastic wiping unit 32 provided on the other extremity with a contact piece 33 is fixed to the bolt 28 by a cover plate and screws 3!.
  • the wiping unit 32 is made of elastic material such as for instance flat spring steel.
  • a stretching band of a material capable to adjust its shape according to conditions is secured by a screw 34 between the wiping unit 32 and the contact piece 33, the stretching band 35 guided over the rod 14 and fixed with its other end by a clamp 36, connected with a cable 37 guided over a roller [6.
  • a spring 38 fixed by means of a not shown suspension on the machine frame, is suspended on the other end of the cable 37.
  • a screw 39 axially secured in the guiding 22 is screwed in in the support 26.
  • a screw 40 axially secured by a cover plate 4] is also in the body [8, the cover plate 4! fixed by a screw 42 to the angle iron 3.
  • the body 18 is furthermore provided with necks 43, 44 with flexible hoses 45 and 46 for the supply and removal of pressure oil.
  • pans l8 to 40 form independent wiping assemblies located side by side in vertical grooves 17 of the angle iron 3 and form together the wiping device.
  • the machine is provided for holding and securing the last with the upper in working position with a support 47 (FIG. 4) with a bolt 48 for supporting the last 49 and with an adjustable rest 50 of the tip.
  • the support 47 is swingable supported on an arm 52 by a bolt 51, the arm 52 being swingable in a horizontal plane, supported on a bolt 53 in a bearing 54 connected with the machine frame.
  • the support 47 is in addition connected by the joint 55 with the piston rod of the piston 56 of the working cylinder 57, which is by means of a joint 58 suspended on the machine frame, enabling both a swinging of the support 47 around the bolt in a vertical plane and together with the arm 52 around the bolt 53 in a horizontal plane.
  • a heel rest 59 and a yieldable stop 60 are furthermore arranged on the machine frame.
  • the drive ofthe machine is provided by a common hydraulic unit with an electromagnetic distributing device 6
  • the wiping assemblies 66 shown in FIG. 4 schematically, comprising in fact the elements 18 to 40, are connected over the distributor 6
  • the support 47 is for instance manually deviated around the bolt 51 until the heel of the upper 69 strikes the yieldable stop 60.
  • the shoe is placed in the machine so that the width of the midsole 68 is in its length along which it should be worked, approximately uniformly distributed to both sides from the central machine axis indicated in FIG. I by This is accomplished by turning the support 47 with the arm 52 around the bolt 53.
  • the elastic wiping units 32 are dajusted so, that they are symmetrically like a fan arranged around the axis "a".
  • the hand wheel ll FlG. 2
  • the worm 9, the worm wheel 7 and the pinion 6 engaging with the toothed segment 5 are turned by way of the rod 10, the segment 5 turning the angle iron 3 around the bolt 2, whereby the whole piping device is adjusted in the most suitable wiping plane.
  • the elastic wiping units 32 are adjusted by screws 40 according to the longitudinal shape of the shank part of the shoe so that the lower edge of the Contact piece 33 is below the plane of the midsole 68.
  • a force required for cementing the lasting margin of the upper 69, independent on prestressing of the stretching bands 35 is thus obtained by a larger or smaller overlapping. It is obvious that this described adjustment is performed in ad vance and is not part ofthe routine work.
  • the limit switch 65 closes the electromagnet of the distributor 61, the slide valve of which is moved.
  • the bolt 48 of the support 47 with the last 49 is lifted up to the heel rest 59. in this working position the support 47 is secured by the working cylinder 57.
  • the wiping assemblies 66 or the elastic wiping units 32 respectively are moved into their working position indicated in FIG. 2 by broken lines. in the course of the approach of the wiping units 32 first the stretching bands 35 come in contact with the upper 69, sliding in the course of movement of the elastic wiping units 32 along the upper 69. Thus a frictional force is generated, stretching the upper. The magnitude of this frictional force is adjusted according to the kind of the upper material by adjusting the pull of the springs 38.
  • each wiping assembly 66 can be put out of action by a valve 67 so that it is posible to adjust the required length for wiping according to the size of the worked shoe.
  • a shaping machine for shoe uppers over lasts, particularly of their shank and lateral parts, and for subsequent cementing of the lasting margins of the shoe uppers to the margin of the shoe sole comprising in combination:
  • each wiping device composed of a number of independent wiping assemblies
  • each wiping assembly having a resilient wiping unit
  • each of said wiping devices supported swingably in the longitudinal direction of the shoe
  • each wiping assembly means for independently adjusting the position of each wiping assembly with the resilient wiping unit as to its distance from the midsole and as to its height with respect to the level of the midsole.
  • a shoe shaping machine as set forth in claim 1 with means for independently adjusting the force acting on each wiping unit in the course of wiping and the force acting on the wipers in the course of pressing the lasting margins against margins of the midsole in the course of cementing.
  • a shoe shaping machine as set forth in claim 1 said wiping devices arranged substantially symmetrically with respect to a central axis.
  • a shoe shaping machine as set forth in claim 3 the last supported by a support on a first bolt, said support in turn supported by an arm, pivotable in a horizontal plane around a second bolt.
  • a shoe shaping machine as set forth in claim 4 said first bolt being in operation beyond said central axis, while said central axis passes through said second bolt.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
US112121A 1970-04-28 1971-02-03 Shaping machine for shoe uppers Expired - Lifetime US3678522A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS292070 1970-04-28

Publications (1)

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US3678522A true US3678522A (en) 1972-07-25

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ID=5367738

Family Applications (1)

Application Number Title Priority Date Filing Date
US112121A Expired - Lifetime US3678522A (en) 1970-04-28 1971-02-03 Shaping machine for shoe uppers

Country Status (7)

Country Link
US (1) US3678522A (es)
AR (1) AR192218A1 (es)
BR (1) BR7100976D0 (es)
CA (1) CA924059A (es)
FR (1) FR2090733A5 (es)
GB (1) GB1339835A (es)
NL (1) NL170801C (es)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940816A (en) * 1974-08-08 1976-03-02 Leonhardt Horst M Side lasting apparatus
US3972086A (en) * 1974-06-21 1976-08-03 Luciano Belli Machine for assembling shoe uppers directly on assembly forms
US4095302A (en) * 1975-09-18 1978-06-20 C. & J. Clark Ltd. Manufacture of shoes
US4167052A (en) * 1976-11-05 1979-09-11 Schon & Cie Gmbh Maschinenfabrik Apparatus for a point lasting machine to fold over a shaft edge of a shoe
US4558478A (en) * 1983-03-31 1985-12-17 Usm Corporation Device for tensioning a shoe upper on a last and for laying its lasting margin over in the ball and shank region
WO2004089609A1 (en) * 2003-04-08 2004-10-21 Soo-Ho Beak Method of manufacturing uppers of leather and mold for hot press

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050429B2 (en) * 1980-10-16 1992-01-22 British United Shoe Machinery Limited Machine for lasting side portions of shoe uppers
FR2492237A1 (fr) * 1980-10-16 1982-04-23 Usm France Machine a mettre sur forme et a monter les cotes des tiges de chaussures
FR2586176B2 (fr) * 1982-04-16 1987-11-27 Huber Cie Sarl Ets Machine a monter les emboitages des chaussures
FR2525087B1 (fr) * 1982-04-16 1987-05-22 Huber Cie Sarl Ets Perfectionnements aux machines a monter les emboitages des chaussures
FR2586175B1 (fr) * 1985-08-16 1987-11-27 Huber Auguste Machine a monter les cambrures

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US996702A (en) * 1908-07-02 1911-07-04 Le Baron C Colt Lasting-machine.
US2655672A (en) * 1950-06-06 1953-10-20 United Shoe Machinery Corp Lasting machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US996702A (en) * 1908-07-02 1911-07-04 Le Baron C Colt Lasting-machine.
US2655672A (en) * 1950-06-06 1953-10-20 United Shoe Machinery Corp Lasting machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972086A (en) * 1974-06-21 1976-08-03 Luciano Belli Machine for assembling shoe uppers directly on assembly forms
US3940816A (en) * 1974-08-08 1976-03-02 Leonhardt Horst M Side lasting apparatus
US4095302A (en) * 1975-09-18 1978-06-20 C. & J. Clark Ltd. Manufacture of shoes
US4167052A (en) * 1976-11-05 1979-09-11 Schon & Cie Gmbh Maschinenfabrik Apparatus for a point lasting machine to fold over a shaft edge of a shoe
US4558478A (en) * 1983-03-31 1985-12-17 Usm Corporation Device for tensioning a shoe upper on a last and for laying its lasting margin over in the ball and shank region
WO2004089609A1 (en) * 2003-04-08 2004-10-21 Soo-Ho Beak Method of manufacturing uppers of leather and mold for hot press

Also Published As

Publication number Publication date
NL170801C (nl) 1983-01-03
GB1339835A (en) 1973-12-05
AR192218A1 (es) 1973-02-08
BR7100976D0 (pt) 1973-04-05
CA924059A (en) 1973-04-10
DE2103721A1 (de) 1971-11-18
NL170801B (nl) 1982-08-02
NL7101563A (es) 1971-11-01
DE2103721B2 (de) 1976-03-04
FR2090733A5 (es) 1972-01-14

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