EP0601772A1 - Maschine pour monter les parties talons de chaussures - Google Patents

Maschine pour monter les parties talons de chaussures Download PDF

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Publication number
EP0601772A1
EP0601772A1 EP93309565A EP93309565A EP0601772A1 EP 0601772 A1 EP0601772 A1 EP 0601772A1 EP 93309565 A EP93309565 A EP 93309565A EP 93309565 A EP93309565 A EP 93309565A EP 0601772 A1 EP0601772 A1 EP 0601772A1
Authority
EP
European Patent Office
Prior art keywords
shoe
units
fastener
machine
tacks
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.)
Granted
Application number
EP93309565A
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German (de)
English (en)
Other versions
EP0601772B1 (fr
Inventor
John Raymond Vale
Robert Alfred Newton
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.)
USM Espana SA
Noxet UK Ltd
Original Assignee
USM Espana SA
British United Shoe Machinery Ltd
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Filing date
Publication date
Application filed by USM Espana SA, British United Shoe Machinery Ltd filed Critical USM Espana SA
Publication of EP0601772A1 publication Critical patent/EP0601772A1/fr
Application granted granted Critical
Publication of EP0601772B1 publication Critical patent/EP0601772B1/fr
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
    • A43D21/14—Lasting machines for toe or heel parts, with nailing devices
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D119/00—Driving or controlling mechanisms of shoe machines; Frames for shoe machines
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D75/00—Nailing devices on pulling-over or lasting machines

Definitions

  • This invention is concerned with machines for lasting heel end portions of shoes, more particularly so-called “tack heel seat lasting machines”, i.e. machines for lasting heel end portions of shoes using fasteners, e.g. tacks.
  • One such tack heel seat lasting machine is described in EP-A-0 091 299 and comprises a shoe support for supporting a shoe comprising an upper on a last and an insole on the last bottom, a wiper assembly comprising two wiper plates mounted for inwiping movement whereby lasting marginal portions of the upper of a shoe supported by the shoe support can be wiped over and pressed against corresponding marginal portions of the insole of such shoe, and fastener-inserting means, comprising a plurality of fastener-inserting units mounted for movement with the wiper plates and arranged to drive fasteners through apertures in said wiper plates, after the inwiping movement of the latter, thus to secure the over-wiped lasting marginal portions of the upper to the marginal portions of the insole, said units comprising at least one unit arranged to operate at a backseam region of the shoe and two sets of units each comprising a plurality of units, arranged to operate along opposite sides of the heel seat portion of the shoe.
  • a single hammer or impact plate is provided, which is operated by pressure fluid to drive all the fasteners, i.e. tacks, into the shoe bottom simultaneously.
  • tacks fasteners
  • a significant force must be generated and furthermore the machine and the fastener-inserting means in general must be constructed in a sufficiently robust way in order to withstand such force when applied.
  • fastener-inserting units are individually actuatable under the control of electronic control means by which the units may selectively be actuated and rendered inactive and sequencing of the actuation of the units selected to be actuated may be controlled, in accordance with a programmed instruction selected according to the style and/or size of the shoe to be operated upon.
  • fastener-inserting units forming part of said sets of units for actuation or being rendered inactive corresponding units of the two sets are selected as pairs.
  • the pairs of fastener-inserting units most remote from the backseam region of the shoe or one or more pairs starting with said most remote pair and then such further pairs progressively therefrom, according to the desired pattern size are rendered inactive. It is in fact conventional in shoe making to insert fourteen, eighteen or twenty-two tacks according to the size of the shoe.
  • each fastener-inserting unit comprises two drivers and serves to insert two tack simultaneously, so that in order to reduce the number of tacks by four, it is necessary to render one pair of fastener-inserting units inactive.
  • each unit of one of said sets is operated simultaneously or substantially so with the corresponding unit of the other of said sets, i.e. again as a pair, under the control of the control means.
  • the fastener-inserting units are actuated sequentially starting with the unit(s) arranged to operate at the backseam region of the shoe and followed by the pairs of units progressively away from said backseam region.
  • the fastener-inserting units of the machine in accordance with the invention may be hydraulically actuated, the construction and arrangement of the machine renders it suitable for use with fastener-inserting units which are pneumatically actuated, that is to say each unit comprises one or more fastener drivers operable by a pneumatic cylinder.
  • the fastener-inserting means comprises a pressurised air reservoir with which each pneumatic cylinder is connected via a valve operable under the control of the electronic control means.
  • the reservoir is supplied with pressurised air from an intensifier.
  • the cylinder is desirably provided with ports of adequate size to allow the appropriate air flow to and from the cylinder respectively at the inlet and exhaust sides.
  • EP-A-O 511 811 is a heel seat and side lasting machine wherein both the heel seat and side portions of the shoe are lasted using adhesive.
  • the wiper assembly is generally similar to that described in EP-A-0 091 299, as is also the manner in which over-wiped lasting marginal portions of the shoe upper are secured to corresponding portions of the insole in the heel seat region by means of tacks rather than by adhesive.
  • the adhesive-applying means (designated 190 in EP-A-0 511 811) is retained in the machine of the present invention in order to apply adhesive along the side portions of the shoe, if desired adhesive can also still be applied to the heel seat portion of the shoe, as described in EP-A-0 511 811, and prior to the insertion of tacks.
  • the application of adhesive in this manner serves not only to consolidate the fixing of the lasting marginal portions of the upper to corresponding marginal portions of the insole, but also provides a seal therebetween, which may be desirable for certain applications, e.g. in the case of shoes on to the lasted bottoms of which a sole-and-heel unit is to be injection moulded.
  • EP-A-0 511 811 for details of the various parts of the machine of the present invention which are common, and only those parts which are different will now be described in detail. (Where reference is made to a part which is common to both machines but not shown in the drawings of the present case, reference numerals taken from the aforementioned EP-A are used, but in brackets.)
  • the machine in accordance with the invention thus comprises a shoe support (20) for supporting, bottom uppermost, a shoe comprising an upper on a last and an insole on the last bottom.
  • a shoe support (20) for supporting, bottom uppermost, a shoe comprising an upper on a last and an insole on the last bottom.
  • the machine of the present invention is then effective to last the remaining portions of the shoe, i.e. the heel seat and side portions.
  • a heel seat wiper mechanism mounted in a frame portion 250 ( Figure 1) of the machine is a heel seat wiper mechanism generally designated 170', which, as already mentioned, is generally similar except as hereinafter described to the wiper mechanism described in EP-A-0 091 299, and comprises a wiper assembly 172' mounted for movement towards and away from the shoe support 20 under the action of a double piston-and-cylinder arrangement 252 mounted on the frame portion 250.
  • the wiper assembly supports a pair of wiper plates 174' which, under the action of a cam plate 176', effect a forward and inward wiping movement over the heel seat portion of the shoe bottom.
  • the wiper assembly 172' is bodily movable into an operative position determined according to the desired position in which fasteners are to be driven into the backseam region of the heel seat of the shoe, as will be discussed later. More particularly, for effecting forward and inward wiping movement of the wiper plates 174' the cam plate 176' is formed with two cam grooves, one arranged at each side of a longitudinal centre line of the wiper assembly, in each of which run a pair of cam rolls 256, each pair being carried by a wiper carrier 258, and the two wiper carriers each supporting a wiper plate 174'.
  • each wiper carrier 258 is provided with a part-circular groove 260 in which is accommodated a part-circular slide member 262, relative to which the wiper carriers, and thus the wipers 174', can slide about an axis at the centre of curvature of the member 262 and grooves 260.
  • the slide member 262 is fixedly secured, in its central region, to a longitudinal slide member 264 which extends along the longitudinal centre line of the wiper assembly and carries a so-called stud 266 which is located at the centre of curvature of the slide member 262 and grooves 260, and about which the two wipers 174' thus can be caused to pivot under the action of the cam plate.
  • a piston-and-cylinder arrangement 268 is provided, mounted on an end plate of the wiper assembly, a piston rod 270 of said device supporting a block 272 to which are pivotally secured two links 274, one at each side of the longitudinal centre line of the wiper assembly.
  • Each link 274 is pivotally connected in turn to a wiper carrier 258 on an axis coincident with that of the rearward (viewed from the shoe support) cam roll 256.
  • actuation of piston-and-cylinder arrangement 268 causes movement of the block 272 in a direction towards the shoe support and thus, through the links 274, corresponding movement also of the wipers 174'.
  • the cam tracks 254 are so configured that in an initial portion of the movement both forward and inward wiping movement of the wipers 174' is achieved, namely by causing some movement of the wiper carriers relative to the member 262 but also causing said member to move forwardly, taking with it also the two slide members 262,264 and thus also the stud 266.
  • each cam track 254 has part-circular sections centred on the stud 266 and consequently in said second part of the movement, the wiper carriers effect only radial movement of the wiper carriers, and thus of the wipers 174', about the stud 266.
  • the stud 266 is always brought under the action of the piston-and-cylinder arrangement 268 to the same position, hereinafter referred to as the "back tack" position, viz. the position at which tacks are driven into the backseam region of the heel seat portion of the shoe, regardless of the extent of the further movement of the wipers, which takes place radially only.
  • the piston rod 284 carries two end stops 286, 288 which allow relative sliding movement to take place between the piston rod 284 and the lug 282 over a distance corresponding to the "forward and radial" movement of the wiper plates in an operating stroke of the arrangement 268. Thereafter, the lug 282 engages end stop 286 and, by moving the piston rod 284 with the piston rod 270, control the speed of approach of the wipers 174' over their "radial only" movement.
  • the end stop 288 has a similar action on the return stroke.
  • a linear potentiometer 290 which constantly monitors the position of the block 272, to which it is operatively connected, and thus monitors the amount of movement of the wiper plates, as will be discussed hereinafter.
  • the wiper assembly also comprises a base plate 292, spaced from the cam plate 176' for containing the various elements of the wiper assembly therebetween.
  • the machine in accordance with the present invention is adapted for securing over-wiped lasting marginal portions of the heel seat portion of the shoe upper to corresponding marginal portions of the insole by means of fasteners, more specifically in the present case tacks.
  • the machine also comprises a plurality of fastener-inserting units, or tackers 300, each of which comprises two drivers 302.
  • One of the tackers 300 is associated with the stud 266 and is mounted on the slide member 264 for movement with the stud while the remaining tackers 300 are arranged in two sets, one at each side of the longitudinal centre line of the wiper assembly, and each set of tackers is fixedly mounted on and thus for movement with the corresponding wiper carrier, in such a manner that in each case the driver is aligned with a corresponding aperture provided adjacent the leading edge portion of the stud 266 or of the appropriate wiper plate 174', as the case may be.
  • the tackers 300 are all essentially of similar construction, and one only will now be described in detail with reference to Figure 3.
  • the tacker shown in Figure 3 comprises a mounting 304 having at its upper end a bracket 306 carrying a piston-and-cylinder arrangement 308. Secured to a piston rod 310 of said arrangement 308 is a hammer block 312, which is provided essentially for affording to the tacker a sufficient mass to be able to drive a tack under the action of the arrangement 308. Secured to the lower portion of the block 312 are the two drivers 302 arranged side-by-side. Carried at the lower end of the mounting 304, furthermore, is a block 314 having two longitudinal (i.e. heightwise) passages 316 along each of which a driver 302 can pass and into each of which a tack supply tube 318 opens.
  • each block 314, furthermore, one aligned with each of the passages 316, are two tack-retaining devices generally designated 320, each comprising two jaws by which a tack supplied along the appropriate tack supply tube can be held in position until driven by the drivers 302 into the shoe bottom, the jaws of the device 320 opening to allow passage therebetween of both the tacks and the drivers.
  • tack-retaining devices are of conventional construction.
  • the piston-and-cylinder arrangement 308 is pneumatically operated and, in order to supply pressurised air thereto, the machine in accordance with the invention comprises a pneumatic circuit incorporating a reservoir capacity for compressed air of six litres, said capacity being provided in the present case by two containers R1,R2 ( Figure 6).
  • the pressure of compressed air thus contained is achieved from a factory source (which is usually in the order of 5.516 bar (80psi) but intensified by an intensifier I to a pressure of 6.895 bar (100psi).
  • a solenoid valve SV80, SV81, SV81A ... SV85A Associated with the arrangement 308, furthermore, is a solenoid valve SV80, SV81, SV81A ... SV85A, the operation of which is controlled in a manner to be described hereinafter.
  • the machine in accordance with the invention comprises electronic control means operable, in accordance with a programmed instruction, to control all the various functions of the machine according to the style and/or size of the shoe to be operated upon.
  • the machine is provided with facilities (not shown, but conventional in machine control) for inputting the various data relating to shoe style and size.
  • a comparison value is calculated, being representative of the end position of the wiper plates, and this comparison value is then compared by the electronic control means with the output signal from the potentiometer 290, as the wiper plates are advanced under the action of piston-and-cylinder arrangement 268.
  • actuation of said arrangement 268 is discontinued, and thus the wiper plates are positioned in the correct position according to the style and size of the shoe.
  • the "back tack" position of the stud 266 is not varied in this way, and thus the amount of forward movement of the wipers remains the same, but the amount of radial movement, and thus the tack pattern, is varied under the control of the potentiometer 290 in cooperation with the electronic control means.
  • the position of the wiper assembly is determined by the engagement of a block (178) engaging a rearward surface of the heel band (152), thus setting the relationship between the heel seat portion of a shoe gripped by the heel band and the wiper assembly.
  • a lead screw 336 Connected to a rearward end of the slide 332 is a lead screw 336 in such a manner that rotation of the lead screw effects sliding movement of the slide 332.
  • an n.c. motor 338 More particularly a stepping motor, is carried on the frame portion 250 of the machine, an output shaft 340 of said motor being connected via a universal link 342 to the lead screw.
  • operation of the stepping motor 338 is effective to cause sliding movement of the block 334 to take place relative to the wiper assembly, so that the position of the wiper assembly in relation to the heel band mechanism when the rearward face of the heel band is engaged by the block 330 will be varied accordingly.
  • the electronic control means of the machine in accordance with the present invention utilises data supplied to it concerning the style and/or size of the shoe to be operated on in order to supply control signals to the stepping motor 338 in order to position the V-block 330 appropriately.
  • the electronic control means is also effective to control the operation of the tackers 300, more particularly the solenoid valves SV80, SV81, SV81A ... SV85A, and moreover such control is effected in two distinct ways: firstly, the insertion of tacks takes place in a sequential manner starting with the operation of the tacker 300 associated with the stud 266, and thereafter continuing with each pair of tackers 300, one at each side of the longitudinal centre line of the wiper assembly, away from the stud toewardly.
  • solenoid valve SV80 is associated with the "back tack" tacker and operates the piston-and-cylinder arrangement 308 of said tacker when switched under the control of the electronic control means.
  • FIG. 4 are a flow diagram representing the tack insertion sequence.
  • a signal is generated when the wipers have completed their inwiping movement and bedding pressure is applied through the shoe support 20, as described in the aforementioned EP-A-0 511 811.
  • step 352 the electronic control means is then interrogated (step 354) as to whether the style of shoe requires tacks; it will of course be appreciated, as has already been mentioned, that this machine may be run using adhesive either in combination with tacks or without tacks, as well of course as being run with tacks without adhesive.
  • the tack insertion sequence (steps 356 to 386) is omitted and the software control follows an "adhesive" operation not involved in the operation of the drivers 302.
  • tacks place to examine the status of a selector switch (not shown) in the machine by which tack insertion can be selected or not selected. It may, for example, be the case that although the style requires tacks, ideally the machine should be processed once on a particular style of shoe in order to ensure that the wipers are correctly positioned in relation to the shoe, in which case a "no tack" sequence would be selected.
  • step 356 the control runs from step 356 to step 386 so that, following a pause (appropriate where tacks have been driven), the "driver return" sequence is implemented (steps 388 to 392), as described hereinafter.
  • the intensifier is brought into operation (step 358) by actuation of valve SV87 ( Figure 6) and thereafter by switching solenoid valve SV80 the back tacks are inserted (step 360) and, following a short pause (step 362), in sequence the pairs of solenoid valves SV81,81A and SV82,82A are actuated, with pauses therebetween (steps 364 to 370) to operate the first and second pairs of tackers 300 located progressively away from the stud 266.
  • the pair of solenoid valves SV83,83A is actuated to insert the next four tacks, bringing the total of tacks so far inserted to fourteen.
  • the programmed instruction is interrogated as to the number of tacks to be inserted in total (step 374) and if the required number is fourteen then steps 376 to 384 are omitted and, following a short pause (step 386), the driver return sequence is implemented as described below.
  • a further four tacks are inserted (step 378) and again at step 380 the programme is questioned as to whether the pre-set number is eighteen.
  • steps 382 and 384 are avoided and the driver return sequence is initiated. If the number pre-set is not eighteen, then following a further short pause (step 382) the last four tacks are inserted (step 384) bringing the total number to twenty-two, whereafter the driver return sequence is implemented as now to be described with reference to Figure 6.
  • the drivers 302 When the machine is in a rest condition the drivers 302 are held in a retracted position (as shown in Figure 4) under a high pressure, preferably in the order of 3.103 bar (45psi), supplied to the cylinders 308 via a regulator valve RV1, solenoid valve SV86 and the individual solenoid valves SV80 to SV85A.
  • a regulator valve RV1 In the rest condition of the machine the intensifier maintains the pressure of the air in the system, but in any event the intensifier is actuated upon initiation of a cycle of operation of the machine by actuation of solenoid valve SV87 step 358).
  • solenoid valve SV87 step 358 At the same time, i.e.
  • solenoid valve SV86 is actuated (also step 358), switching the air supplied to the cylinders 308 to a low pressure, preferably in the order of 0.345 bar (5psi), as regulated by regulator valve RV2.
  • the various tackers are now actuated in sequence, starting with the tacker associated with the stud 266 and then operating in pairs progressively away from the stud, as already described with reference to Figures 4 and 5.
  • the driver return sequence is initiated, involving, following a short pause (step 386), de-actuating solenoid valves SV80 to SV85A (step 388) and at the same time de-actuated solenoid valve SV86 (step 390) thus to allow air under high pressure as regulated by regulator valve RV1 to be supplied to the exhaust side of each of the piston-and-cylinder arrangements 308 thus to return the drivers 302 to their retracted position. Thereafter, the actuation signal to the intensifier is discontinued (step 392) until the next cycle of operation is initiated.
  • One of the advantages of the tack insertion sequence control of the present invention is that in the event that, say, fourteen tacks have been selected, then the last two pairs of tackers 300 are not actuated. The effect of this is that the drivers of those tackers are therefore not actuated and consequently there is no risk of damage being caused to the over-wiped lasting marginal portion and/or to the insole by any impact from the driver head itself, which often occurs where, instead of de-actuating the drivers, the supply of tacks to the drivers is merely prevented.
  • the supply of tacks to the various tackers 300 may be effected in any conventional manner, e.g. using a pneumatically operated tack pot and a tack bar separator of conventional design. Further details are not relevant to the present invention and are not therefore discussed further in this specification.
  • determining the tack pattern for a given shoe it is only necessary using the machine in accordance with the invention to determine the pattern for a model size. Thereafter, for different sizes of shoe in the same style it is possible to effect a grading operation using the electronic control means in a manner which is generally well known in shoe-making practice.
  • the comparison signal produced by the electronic control means for comparison with the signal from the potentiometer 290 will in fact be determined by "grading" rules from the data obtained using the model size for the style of shoe.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP19930309565 1992-12-05 1993-11-30 Maschine pour monter les parties talons de chaussures Expired - Lifetime EP0601772B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9225487 1992-12-05
GB929225487A GB9225487D0 (en) 1992-12-05 1992-12-05 Machine for lasting end portions of shoes

Publications (2)

Publication Number Publication Date
EP0601772A1 true EP0601772A1 (fr) 1994-06-15
EP0601772B1 EP0601772B1 (fr) 1997-02-26

Family

ID=10726200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930309565 Expired - Lifetime EP0601772B1 (fr) 1992-12-05 1993-11-30 Maschine pour monter les parties talons de chaussures

Country Status (7)

Country Link
EP (1) EP0601772B1 (fr)
BR (1) BR9304605A (fr)
CZ (1) CZ252993A3 (fr)
DE (1) DE69308272T2 (fr)
ES (1) ES2097995T3 (fr)
GB (1) GB9225487D0 (fr)
TW (1) TW229146B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995028106A1 (fr) * 1994-04-19 1995-10-26 British United Shoe Machinery Limited Machine de montage des parties laterales de tiges de chaussures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114224029B (zh) * 2021-12-29 2023-04-11 丽荣鞋业(深圳)有限公司 鞋中底位置矫正和打钉系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046858A1 (fr) * 1980-08-22 1982-03-10 Turner Maschinenbau GmbH Machine pour l'enfoncement de semences dans la partie talon et la partie cambrée d'une chaussure
EP0384970A2 (fr) * 1989-03-03 1990-09-05 SCHÖN & CIE GMBH Machine de montage de tiges
EP0511811A1 (fr) * 1991-04-30 1992-11-04 British United Shoe Machinery Limited Dispositif pour la fabrication de chaussures

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046858A1 (fr) * 1980-08-22 1982-03-10 Turner Maschinenbau GmbH Machine pour l'enfoncement de semences dans la partie talon et la partie cambrée d'une chaussure
EP0384970A2 (fr) * 1989-03-03 1990-09-05 SCHÖN & CIE GMBH Machine de montage de tiges
EP0511811A1 (fr) * 1991-04-30 1992-11-04 British United Shoe Machinery Limited Dispositif pour la fabrication de chaussures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995028106A1 (fr) * 1994-04-19 1995-10-26 British United Shoe Machinery Limited Machine de montage des parties laterales de tiges de chaussures

Also Published As

Publication number Publication date
BR9304605A (pt) 1994-06-07
DE69308272D1 (de) 1997-04-03
GB9225487D0 (en) 1993-01-27
ES2097995T3 (es) 1997-04-16
EP0601772B1 (fr) 1997-02-26
DE69308272T2 (de) 1997-08-28
TW229146B (fr) 1994-09-01
CZ252993A3 (en) 1994-06-15

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