US3735438A - Machine for turning the shank edge on and securing it to the insole of a shoe - Google Patents

Machine for turning the shank edge on and securing it to the insole of a shoe Download PDF

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Publication number
US3735438A
US3735438A US00139805A US3735438DA US3735438A US 3735438 A US3735438 A US 3735438A US 00139805 A US00139805 A US 00139805A US 3735438D A US3735438D A US 3735438DA US 3735438 A US3735438 A US 3735438A
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Prior art keywords
roll
improvement
nailing
machine
insole
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Expired - Lifetime
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US00139805A
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English (en)
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T Loffler
H Schindler
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D25/00—Devices for gluing shoe parts
    • A43D25/047—Devices for lasting with adhesives or for gluing together insoles and uppers

Definitions

  • ABSTRACT In a shoemaking machine there is provided a draw roll mechanism, a pressing mechanism, an adhesive applicator mechanism and a nailing mechanism, all arranged in close juxtaposition and all having the same work range to operate in close succession on the same portion of a last advanced through the machine.
  • This invention relates to a machine for turning the shank edge on and securing it to the insole of a shoe, the upper and insole of which are secured to a last, which is passed through manually.
  • Machines of this type generally referred to as lasting machines, are available in a great number of structures; some of them are provided with a drawing roll, a countersupport as well as a pressing roll.
  • the edge of the upper which is secured to the last, is clamped between the drawing roll and the countersupport and is, by the drawing roll, continuously forwarded under the work device with the last whereby the shaft edge is drawn up and pressed upon the insole.
  • An adhesive is injected between the shank and the insole from a dispenser nozzle.
  • the pressing roll presses the shank edge onto the insole to thus secure a bond therebetween.
  • the insole is reinforced with cardboard.
  • a lasting machine with a nailing device has to be used which, in the range of the joint the part exposed to the maximum stresses during walking drives in. several nails to provide a firm connection between the shank edge, the cardboard reinforcement and the inner sole proper.
  • the shoemaking machine comprises a draw roll mechanism, a pressing mechanism and an adhesive applicator mechanism which are known per se, in combination with a nailing device which is also known by itself. All these mechanisms are disposed close to one another and have the same work range with respect to the last. The operation takes place in such a manner that in a close succession at the same location the upper is pulled over the edge of the insole, the latter is sprayed with an adhesive, the edge of the upper is turned and pressed on the insole and then nailed thereto. During all these operational steps the last and the upper are advanced by virtue of the drawing roll and the countersupport as the operator manually exerts a counterpressure urging the last against the tools.
  • FIG. 2 is a side elevational view of the same embodiment in the direction of arrow A of FIG. 1;
  • FIG. 3 is a side elevational view of the same embodiment in the direction of arrow B of FIG. 1;
  • FIG. 4 is a schematic side elevational view of a sensor device associated with the preferred embodiment, wherein the last is shown in cross section and
  • FIG. 5 is an axial sectional schematic view of a nailing device forming part of the preferred embodiment, wherein the last is shown in longitudinal section.
  • FIG. 1 on the stand 1 of the shoemaking machine there are arranged in close juxtaposition, a nailing device T, a pressing device B, a gluing device K and the draw roll conveying mechanism Z as well as a sensor device A, all simultaneously cooperating in the lasting of the shank 44 on the insole 45 which are secured to the last 43.
  • the drawing roll device Z includes a drive means 2 having an output shaft 3 which carries at its free end a knurled wheel 4. As seen in. FIG. 3, opposite the knurled wheel 4, there is disposed at a predetermined distance a countersupport 5 affixed to a carriage 6 which, in turn, is guided in a slot 7. The clearance between the countersupport 5 and the knurled wheel 4 may be adjusted by actuating a power cylinder 8 which also supplies, through a piston rod 1 l, the pressure necessary for advancing the shank with the last. The pressure is regulated by a pressure control valve of which only the operating knob 9 is seen. A setting screw 10 is provided for adjusting the distance between the countersupport 5 and the knurled wheel 4.
  • the setting screw 10 limits the motion of the countersupport 5 and thus the motion of the piston 11 in the cylinder 8.
  • the knurled wheel 4 is so driven by a conventional motor (not shown) that it advances the last 43 in a direction from the right to the left when viewed in FIG. 1.
  • the aforenoted conventional motor also drives the pressing roller 12 of the pressing mechanism B, the driving components of which comprise the shaft 13 and the joint 14 (FIG. 2).
  • the bearing support of the pressing roll 12 is afixed to a carriage 15' which glides in the vertical carriage guide 16.
  • the latter may be set by means of a manually engageable wheel 15" to the appropriate working height.
  • the operating pressure is generated by a power cylinder 17 which is supported by a bracket 18 and the piston rod 19 of which is aflixed to the carriage 115'.
  • the pressure in the upper cylinder chamber 17' of the cylinder 17 is set by means of pressure regulating means, such as a setting valve of which only the operating knob 20 is visible in the figures.
  • the adhesive applicator device K has a gluing mechanism 21 provided with an adhesive dispensing nozzle 22 which is situated between the knurled wheel 4 and the pressing roll 12.
  • the gluing device 21 is heated in case a thermoplastic adhesive is used.
  • the machine stand 1 also supports a conventional glue pump having a valve.
  • the control of the adhesive supply is effected by the sensor device A, illustrated in detail in FIG. 4. It is disposed, when viewed in the direction of motion of the last 43, upstream of the knurled wheel 4 and includes an adjustable holder 23 which supports a reflector 24, a photocell 25 and a light source 49.
  • the shank edge 26 is in an upright position between the photocell 25 and the reflector 24, the light beam which emanates from the light source 49 and is reflected by the reflector 24 toward the photocell 25, is interrupted by the edge of the upper. An absence of signal in the photocell 25 effects delivery of adhesive from the dispensing nozzle 22. At the end of the work path of the last, the edge of the upper is turned along the entire length of the joint. Consequently, the light beam reflected by the reflector 24 impinges upon the photocell 25 and produces a signal therein, whereupon delivery of adhesive from the nozzle 22 is stopped.
  • the nailing mechanism T is arranged downstream of the pressing roller 12 when viewed in the travelling direction of the last. Basically it comprises a nailing head 27 with a hammering cylinder 28 and a hammering pin 29. The nails are forwarded to the nailing head 27 by a nail feeder 30 through a conduit 31. This mechanism is known per se and therefore is not described in more detail.
  • the nailing device operates in such a manner that in the proper moment a nail is admitted to the nailing head 27.
  • the nailing operation may be triggered either my manipulating a switch or by means of the photocell 25.
  • the timing of the successive nailing operations may be set by a time switch which emits a command signal through an electric control means for a pneumatic switch valve (not shown).
  • the latter operates a piston which is disposed in the cylinder 28 and which, in turn, operates the hammering pin 29.
  • the nailing device should have a certain mobility, since it has to engage with sufficient pressure both the outer edge of the insole and the insole itself. Accordingly, it is horizontally guided in the slider 32 by means of an elongated slot 33, while the slider 32 may be adjusted vertically.
  • the pressure in the horizontal direction is supplied by a power cylinder 34 and may be set by means of a pressure regulating valve having an operating knob 35.
  • the adjustment of the slider 32 by means of the slider guide 36 for pressing the nailing head 27 against the insole is effected by a power cylinder 40 containing a piston 39 connected to a piston rod 41. The latter is secured to an eyelet 36'.
  • an adjusting device constituted by a manually engageable wheel 27'.
  • a guiding roll 42 To the nailing head 27 there is secured a guiding roll 42. During operation, the edge of the last, together with the insole and the shank edge is passed along the guiding roll 42 to insure that the nails are driven into the shoe at a correct distance from the edge.
  • the insole 45 Prior to inserting the last into the machine, the insole 45 is tacked and the shank is partially at the heel and toe portions lasted over the last. In the joint portion the shank material extends vertically upward from the insole.
  • the distance between the knurled wheel 4 and the countersupport is adjusted by means of the setting screw to be somewhat less than the leather thickness of the shank 44.
  • the last is introduced into the machine in such a manner that the edge of the shank 44 enters between the knurled wheel 4 and the countersupport 5.
  • the knurled wheel 4 grasps the shank and thus also the last with the insole and forwards the entire assembly through the pressing roll 12.
  • the operator exerts a counterpressure with the last.
  • the force of the pressing roll 12 may be set by operating the knob associated with a pressure control valve.
  • the shank edge Upon introcluction into the machine, the shank edge enters between the reflector 24 and the photocell 25 and thus interrupts the light beam whereby the adhesive applicator device is actuated and the nozzle 22 dispenses an adhesive.
  • the nailing device is actuated by a foot pedal, whereby nails are intermittently driven through the shank edge and the insole.
  • the distance between nails may be varied at will by setting a timer switch, or, the sensor device A may be so designed that, simultaneously with the control of adhesive, it also controls the nailing operation.
  • the abovedescribed machine may be provided with a switching device which permits to perform either a combined operation of the nailing device T and the adhesive applicator device K or which operates the two devices T and K in a selective manner.
  • the machine according to the invention may also be used for circular shoe lasting.
  • said photoelectric sensor device includes A. a light source

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US00139805A 1970-05-02 1971-05-03 Machine for turning the shank edge on and securing it to the insole of a shoe Expired - Lifetime US3735438A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702021495 DE2021495A1 (de) 1970-05-02 1970-05-02 Maschine zum Umlegen und Befestigen des Schaftrandes an der Brandsohle eines Schuhes

Publications (1)

Publication Number Publication Date
US3735438A true US3735438A (en) 1973-05-29

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US00139805A Expired - Lifetime US3735438A (en) 1970-05-02 1971-05-03 Machine for turning the shank edge on and securing it to the insole of a shoe

Country Status (4)

Country Link
US (1) US3735438A (enExample)
DE (1) DE2021495A1 (enExample)
FR (1) FR2093465A5 (enExample)
GB (1) GB1341464A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100178433A1 (en) * 2009-01-14 2010-07-15 Gm Global Technology Operations, Inc. Method and apparatus for applying bonding adhesive
CN104490012A (zh) * 2013-06-05 2015-04-08 力德机械有限公司 软质材料贴合结构装置
CN109420705A (zh) * 2017-08-29 2019-03-05 温州市荆松冲压件有限公司 一种鞋底腰铁冲压设备及其生产方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2848551A1 (de) * 1978-11-09 1980-05-22 Schoen & Cie Gmbh Fersen- und gelenkzwickmaschine
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
CN107006953A (zh) * 2017-05-02 2017-08-04 盐城市裕正精密机械有限公司 一种鞋帮镶接装置及镶接方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424240A (en) * 1944-03-21 1947-07-22 Jacob S Kamborian Apparatus for lasting shoes
US2740141A (en) * 1954-09-29 1956-04-03 Jacob S Kamborian Machine for operating on shoes
US2970330A (en) * 1958-07-23 1961-02-07 Jacob S Kamborian Automatic control for upholstery and lasting machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424240A (en) * 1944-03-21 1947-07-22 Jacob S Kamborian Apparatus for lasting shoes
US2740141A (en) * 1954-09-29 1956-04-03 Jacob S Kamborian Machine for operating on shoes
US2970330A (en) * 1958-07-23 1961-02-07 Jacob S Kamborian Automatic control for upholstery and lasting machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100178433A1 (en) * 2009-01-14 2010-07-15 Gm Global Technology Operations, Inc. Method and apparatus for applying bonding adhesive
CN104490012A (zh) * 2013-06-05 2015-04-08 力德机械有限公司 软质材料贴合结构装置
CN109420705A (zh) * 2017-08-29 2019-03-05 温州市荆松冲压件有限公司 一种鞋底腰铁冲压设备及其生产方法

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Publication number Publication date
GB1341464A (en) 1973-12-19
DE2021495A1 (de) 1971-11-18
FR2093465A5 (enExample) 1972-01-28

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