EP0756463A1 - Machine de montage des parties laterales de tiges de chaussures - Google Patents

Machine de montage des parties laterales de tiges de chaussures

Info

Publication number
EP0756463A1
EP0756463A1 EP95914480A EP95914480A EP0756463A1 EP 0756463 A1 EP0756463 A1 EP 0756463A1 EP 95914480 A EP95914480 A EP 95914480A EP 95914480 A EP95914480 A EP 95914480A EP 0756463 A1 EP0756463 A1 EP 0756463A1
Authority
EP
European Patent Office
Prior art keywords
shoe
path
fastener
nozzles
machine
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.)
Ceased
Application number
EP95914480A
Other languages
German (de)
English (en)
Inventor
Mark Quibell Blatherwick
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
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 USM Espana SA, British United Shoe Machinery Ltd filed Critical USM Espana SA
Publication of EP0756463A1 publication Critical patent/EP0756463A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00—Lasting machines
    • A43D21/006—Lasting machines with rotating lasting means
    • 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

  • TECHICAL FIELD This invention is concerned with a machine for lasting side portions of shoe uppers comprising a shoe support for supporting a shoe, comprising a shoe upper on a last and an insole on the last bottom, adhesive-applying means comprising two nozzles, arranged one at each side of the shoe support, means for effecting relative movement between the shoe support and the nozzles, in directions extending lengthwise and widthwise of the bottom of a shoe supported by the shoe support whereby the nozzles are caused to follow a first path along the opposite side portions of the shoe bottom and apply adhesive progressively between lasting marginal portions of the shoe upper and corresponding marginal portions of the insole of the shoe, side lasting instrumentalities whereby the lasting marginal portions of the side portions of the shoe upper can be wiped over and pressed against the corresponding marginal portions of the insole of the shoe thus to cause them to be bonded together, and fastener- inserting means arranged to insert fasteners through the over-wiped lasting marginal portions of the side portions of the shoe upper and into the corresponding marginal portions of the insole
  • the guidance of the fastener-inserting units has either been by template control or under the control of an edge-sensing device by means of which the fastener-inserting units can be guided along the marginal portions of the shoe bottom.
  • the two paths can be accurately controlled regardless of the distinctness or otherwise of the outline of the shoe bottom.
  • the two paths may be coincident, or alternatively said other path may be offset, in a direction extending widthwise to the shoe bottom, in relation to said one path by a pre-determined distance.
  • either the whole or only selected parts of the stored data e.g. the start point and the finishing point may be used, according to the perceived needs for the particular shoe being operated upon.
  • the adhesive-applying means and the fastener-inserting means are mounted on a common support such that relative movement therebetween does not take place in a direction extending lengthwise of the shoe bottom, but can take place between the nozzles and the fastener-inserting units in directions extending widthwise and heightwise of the shoe bottom.
  • the support for the adhesive-applying means and the fastener- inserting means is mounted for movement relative to the shoe support in a direction extending lengthwise of the shoe bottom.
  • the nozzles are brought to a start position (which may in fact be in the heel seat region of the shoe bottom) and are thereafter caused to move, lengthwise and widthwise of the shoe bottom, under operator control using a suitable operator-actuatable means, e.g. a joy stick or cursor keys, so that each nozzle is accurately positioned in relation to the marginal portions of the shoe bottom at various points along the traverse of the nozzles.
  • a suitable operator-actuatable means e.g. a joy stick or cursor keys
  • the path of the fastener-inserting units may then also be calculated, according to the particular manner in which such path is to be determined (as referred to above), and also be stored separately, in the form of digitised co-ordinate axis values, in the memory.
  • the path of the fastener- inserting units is calculated from the stored data relating to the path of the nozzles during the actual operating cycle of the machine; that is to say, the path of the units is determined "on the fly" for each individual operating cycle.
  • preferably further operator-actuatable means is provided, for use in the path-determining mode of the machine, for selecting the amount of such offset and for storing the selected amount as a value in the memory of the electronic control means. Such stored value is then applied at the time of calculation of the path of the fastener-inserting units, whether such calculation takes place in the path-determining mode or "on the fly".
  • the one path which is determined and stored as data as aforesaid being the path of the nozzles and the path of the fastener-inserting units constituting the other path
  • said one path could also be the path of the fastener-inserting units and the calculated path that of the nozzles.
  • the preference for the path determined under operator control being the path of the nozzles resides in that the nozzles, but not the fastener-inserting units, may also follow a path in the heel seat region of the shoe bottom, thus to facilitate the lasting of the heel seat region also, e.g. by conventional wiper plates.
  • the fastener-inserting units would be held in an out-of-the-way position during the traverse of the heel seat region by the nozzles and indeed their own traverse of such region.
  • Fig. 1 is a perspective view, with parts broken away, of the machine in accordance with the present invention
  • Fig. 2 is a fragmentary side view of said machine, illustrating a carriage for a side lasting assembly, and also for adhesive-applying means and fastener-inserting means thereof;
  • Fig. 3 shows details of a side lasting assembly of the machine
  • Fig. 4 shows details of the adhesive-applying means of the machine
  • Fig. 5 shows details of the fastener-inserting means of the machine
  • Figs 6A to 6D are flow charts indicating both normal and also path-determining modes of operation of the machine.
  • BEST MODE OF CARRYING OUT THE INVENTION The machine now to be described, which is generally similar, except as hereinafter described, to the machine described in EP-A-0 511 811, is a so-called heel seat and side lasting machine in the operation of which heel seat and side portions of a shoe, comprising a shoe upper carried on a last and an insole on the last bottom, which shoe has already been lasted in the toe region thereof, are lasted; more particularly the lasting of the side portions is first initiated, from the region of the heel breast line toewardly, and thereafter the lasting of the seat portion is effected.
  • the machine comprises a shoe support generally designated 20 for supporting, bottom up, a shoe, the toe end portion of which has already been lasted, for heel seat and side lasting operations to be performed thereon. Details of the shoe support will be found set out in the aforementioned EP-A-0 511 811.
  • the machine also comprises a wiper mechanism generally designated 170, including a pair of wiper plates (not shown) for lasting heel seat portions of a shoe supported by the shoe support 20, and in addition two side lasting assemblies generally designated 230; these two assemblies are also mirror- opposites and only one will therefore now be described with reference to Fig. 3.
  • Each side lasting assembly 230 comprises a lasting roller 232 of the type comprising a helical rib arrangement by which, as the roller is rotated, an inwiping movement is effected on the lasting marginal portion of a shoe engaged thereby.
  • the roller is mounted in a bearing 234 and is driven through a system of belts and pulleys generally designated 236 by a motor 238.
  • the parts of the assembly 230 just described are all mounted on a support plate 240, itself mounted for pivotal movement, about an axis 242, on a casting 244.
  • a gear segment 246, having a centre of curvature at the pivot 242 is mounted on the plate 240 and meshes with a drive pulley 248 which is driven, through a further system of timing belts and gears generally designated 250, from an output shaft of a stepping motor 252 mounted on the casting 244.
  • the stepping motor 252 controls the angle of tilt of the lasting roller about the axis 242, whereby the roller can accommodate to the widthwise contour of the shoe bottom being operated upon.
  • the casting 244 is itself mounted for pivotal movement on stub shafts 254 (Figs.
  • lugs 256 formed on a carrier block 258 which is itself carried on a further shaft 260 supported at opposite ends by lugs 262 formed on a carriage 200.
  • the machine further comprises means for effecting pivotal movement of the carrier block 258 about the shaft 260, said means comprising two piston-and- cylinder arrangements 266, 268 which are mounted on the carriage 200 and are caused to act upon a plate 270 secured to an inwardly directed arm 272 (see Fig. 3) integral with the carrier block 258.
  • the piston-and- cylinder arrangement 266 is generally actuated so that its piston rod is fully extended and in this case the lasting roller is held with its tip at or adjacent the longitudinal centre line L of the shoe support 20, as shown in full line in Fig. 3. In this condition the piston rod of the piston-and-cylinder arrangement 268 is at an intermediate position such that it can be either further extended or fully retracted when the piston-and- cylinder arrangement 266 is de-actuated.
  • the piston-and-cylinder arrangement 268 is effective to cause pivotal movement of the carrier block 258 which results in the lasting roller being moved transversely of the shoe bottom either to urge it over, i.e. beyond, the longitudinal centre line L of the shoe support 20 (in the case of extension of the piston rod of the arrangement 268), as shown in chain-dot line in Fig. 3, or to withdraw it from adjacent said longitudinal centre line (in the case of retraction of said piston rod) .
  • the two lasting rollers must be actuated together so that as one is moved beyond the longitudinal centre line the other is withdrawn and vice versa, in order to avoid collision.
  • This transverse movement is to enable the lasting rolls to track along opposite marginal portions of the shoe bottom which are not symmetrical along the longitudinal centre line of the shoe support, and indeed one of which may, especially toward the end, cross such longitudinal centre line.
  • Extending along the outside of a main frame of the machine are two parallel slide rods 198 (Figs. 2 and 4) on which the carriage 200 is movable.
  • a stepping motor 202 (Fig. 2) is effective through a gearbox 203 to rotate a drive shaft 204 having drive pulleys 205 at opposite ends thereof.
  • a timing belt 206 is entrained, which is connected to the carriage 200.
  • Idler pulleys 207 are arranged at the opposite ends of the slide rods 198.
  • the stepping motor 202 is thus effective to cause the side lasting assemblies 230 to move relative to the shoe support 20 in a direction extending lengthwise of the shoe bottom.
  • the machine in accordance with the invention also comprises adhesive-applying means generally designated 190 (Fig. 4).
  • Said means 190 comprises two nozzles 192 with each of which is associated a melt chamber 194 and a feed mechanism generally designated 196 (see Fig. 1) by which adhesive in rod form can be fed to the melt chambers 194.
  • the feed mechanism 196 in each case is generally as described in GB 2 216 041 and will not be further described here.
  • the nozzles 192 follow independent paths along marginal portions of opposite sides of the insole, each path being under any suitable control, preferably however under programmed control.
  • the two nozzles are similarly mounted (but on a mirror- opposite basis) and the mounting of only one will now be described.
  • a lever 210 mounted, forwardly (i.e. nearer the operator) of the side lasting assembly 230, on a bracket 208 (Fig. 4) upstanding from the carriage 200, for movement about a pivot 209, is a lever 210 on which in turn a carrier block 212 is supported.
  • the carrier block 212 supports a stepping motor 214 on an output shaft of which is carried a pulley 416 connected by a timing belt 418 to a further pulley 420 also supported by the carrier block 212 and rotatable about a shaft 421.
  • a bracket 423 which supports the melt chamber 194 and nozzle 192.
  • the nozzle 192 is movable about the axis of the pulley 420 transversely of the shoe bottom. In this way, and by reason of the lengthwise movement of the carriage 200 under the action of the stepping motor 202, the nozzle 192 can be caused to track in X and Y directions along the shoe bottom.
  • the lever 210 is urged about the pivot 209, so as to maintain contact between the nozzle and the shoe bottom, under the action of a piston- and-cylinder arrangement 226 mounted on the carriage 200.
  • fastener-inserting means is also mounted on the carriage 200, heelwardly of the lasting roller 232, as fastener-inserting means generally designated 430 (Fig.
  • a housing 432 on which is mounted a stepping motor 434 which drives a ball screw 436 accommodated within the housing.
  • the end of the ball screw 436 remote from the stepping motor is threadedly engaged with a block 438 which is mounted for sliding movement within the housing.
  • the block 438 carries an arm 440 on which a tacker head generally designated 442 is supported.
  • the housing 432 is supported on the carriage 200 for pivotal movement about an axis 444.
  • a piston-and-cylinder arrangement 446 is carried on the housing, its piston rod being connected to a lever 448 which is mounted for pivotal movement in a bifurcated block 450 supported on the carriage 200.
  • the lever 448 moreover is also connected to a piston rod of a further piston-and-cylinder arrangement 452 supported on the carriage.
  • the degree of pivotal movement of the housing 432 can be controlled.
  • the housing, and thus also the tacker head 442 therewith can be moved rapidly between its operative position (shown in full line in Fig. 5) and its out-of-the-way position (shown in faint line in Fig. 5).
  • a proximity switch 464 is mounted on the block 450 and provides a signal when the head is in its out-of-the-way position. For preventing damage to the various mountings, moreover, shock absorbers are provided acting between the housing and the carriage 200.
  • the tacker head 442 comprises a guide roller 454 wnich is brought into engagement with the shoe bottom and thus determines the heightwise position of the tacker head.
  • the roller is supported by the arm 440 and in turn supports a bearing on which a block 456 is mounted, said block in turn carrying a pneumatically actuatable fastener-inserting unit 458, said unit including a tack- inserting head 460 which is urged into engagement with the shoe bottom about the axis of the roller 454 under the influence of a piston-and-cylinder arrangement 462 supported on the block 456.
  • the unit 458 can thus pivot about the axis of the roller 454 and is held generally perpendicular to the shoe bottom portion engaged thereby.
  • each of the carriages 200 has fastener-inserting means 430 associated therewith and that the fastener-inserting units 458 thereof are moved lengthwise of the shoe under the control of the stepping motor 202.
  • the units 458 follow independent paths along marginal portions of opposite sides of the shoe bottom under programmed control, as will be described below.
  • step 500 With a shoe supported by the shoe support 20 and clamped thereby (step 500), firstly the electronic control is interrogated as to whether normal operation or a path-determining operation is selected (step 502). In the case of normal operation, the machine cycle is initiated, whereupon the nozzles 192 of the adhesive-applying means 190 move downwardly into engagement with the insole of the shoe (step 504) toewardly of the backseam region thereof by the action of piston-and-cylinder arrangements 226, and thereafter they are moved heelwardly by the action of the stepping motor 202 (step 506), acting on the carriages 200.
  • the nozzles 192 of the adhesive-applying means 190 move downwardly into engagement with the insole of the shoe (step 504) toewardly of the backseam region thereof by the action of piston-and-cylinder arrangements 226, and thereafter they are moved heelwardly by the action of the stepping motor 202 (step 506), acting on the carriages 200.
  • the nozzles are closely adjacent one another so that they move to a position in the region of the backseam and adjacent the insole edge. If the lasting margin has previously been in-flanged, then the nozzles move beneath such in-flanged portion; it has been found that by reason of the pivoting movement of the nozzles about the axis 421 the tendency is for the nozzle to effect a "scooping" action in relation to such in-flanged lasting margin, thus ensuring that the nozzle enters beneath the in-flanged portion.
  • step 508 the feed mechanisms 196 for the adhesive are initiated (step 508) so that adhesive is then applied from the nozzles to the insole and, under the influence of stepping motors 214 and stepping motor 202, the nozzles are caused to move along the path which has previously been determined as aforesaid (step 510) .
  • rollers 232 which are still held out of engagement with the shoe bottom, are caused to begin rotation under the action of motors 238 (step 512) and, when the nozzles have moved forwards from the heel breast line region of the shoe bottom by a distance more or less equal to the spacing between the nozzles and the rollers (approximately 75 ram in the machine described above) (step 514), they are moved downwardly under the action of piston-and-cylinder arrangements 264 (step 516) and engage the lasting marginal portions of the shoe upper.
  • the helical rib arrangement of each effects an inwiping movement on such lasted marginal portion at the point of engagement and also presses said lasting marginal portion against a corresponding marginal portion of the insole, thus causing the two marginal portions to be bonded together by the previously applied adhesive.
  • the rollers 232 are moved widthwise during their movement along the shoe bottom and also can be tilted relative to the shoe bottom by the action of the motors 266, 268 and 252 (step 518), again under programmed control. It will be noted that the fastener-inserting means 430 are maintained in their out-of-the-way position while the rollers 232 traverse the heel seat region of the shoe.
  • the tacker heads 442 are caused to pivot (step 522), by operation of their associated piston-and-cylinder arrangements 446, to bring the tack-inserting heads 460 into engagement with the now wiped over and bonded lasting marginal portions of the shoe.
  • the preferred procedure in the machine of the present invention is that the paths of the units are determined "on the fly" (step 524) (that is to say are calculated from the nozzle path data as the heads progressively move along their paths) and any offset which has been previously selected (as will be referred to below) is applied to the nozzle path data after shoe sensing (left or right) and size grading has been completed.
  • the side portions of the shoe are lasted progressively, both the nozzles 192 and the units 460 moving independently in the Y-axis in accordance with the programmed instruction.
  • the paths of movement are terminated independently of each other as the boundary with the previously toe-lasted portion of the shoe bottom is reached, said boundary being taught during the path-determining operation.
  • the heel seat of the shoe can be lasted, in the manner described in the aforementioned EP-A-0 511 811. More particularly, at this stage the wiper mechanism 170 is advanced (step 528) and this forward movement is monitored (step 530) until the wipers are in the correct forward position. At this stage the operation of the wipers can take place to wipe the lasting marginal portions in the heel seat region of the shoe over and press them against corresponding marginal portions of the insole. As is conventional, moreover, once the in- wiping movement has terminated, bedding pressure can be applied for a dwell period (step 532).
  • the setting of the flag is for purposes which will be referred to later.
  • the retracting movement of the wipers is monitored (step 538) and once the wipers are retracted the heel seat lasting operation sequence is terminated (step 540).
  • step 542 the adhesive feed is terminated and shortly thereafter the nozzles 192 are raised out of engagement with the shoe bottom (step 544).
  • the timing of the adhesive feed termination and the raising of the nozzles will be such as to militate against any drooling, or significant drooling, of adhesive from the nozzles.
  • step 546 a second end position is reached (step 546) and at this stage the rollers 232 are raised out of engagement with the shoe bottom (step 548).
  • the machine described above may be used for a cement side lasting operation only, in which case the fastener- inserting means 430 will be held out of engagement with the shoe for the whole of the X-axis movement, or alternatively the machine may be used for a tack side lasting operation only, by retaining the nozzles out of such shoe bottom engagement.
  • a model shoe e.g. a shoe in the middle of a size range for a given style
  • the nozzles 192 are brought to a start position at the backseam region of the shoe bottom (step 562), representing the start position for each nozzle movement.
  • nozzles are then moved automatically through a pre-determined distance along a shoe-lengthwise (X-axis) direction to a first position (step 564), from which then the operator, using cursor buttons 472 (step 566) also on the control panel 470, moves the nozzles in a shoe-widthwise (Y-axis) direction (step 568) to locate each nozzle, independently of the other, at a desired position along the marginal portion of the shoe bottom.
  • cursor buttons 472 step 566
  • Y-axis Y-axis
  • the operator terminates the operation by a further depression e.g. of the start button 474 (step 576); it will be noted, that such depression is monitored throughout the digitising operation, the delay being provided for this purpose. (Alternatively a separate "terminating" button (not shown) may be provided on the control panel. )
  • the predetermined distance between points is generally the same along the whole of the length of the shoe bottom, but if desired it may be varied to take account of unusually configured shoe bottoms.
  • no account is taken of the heightwise contour of the shoe bottom in determining the distance between successive points, but if desired, the heightwise contour may also be taken into consideration.
  • each of the fastener-inserting units 4508 For determining the path to be followed by each of the fastener-inserting units 458, it would be possible to effect a similar operation to that described with regard to the paths of the nozzles. In the machine in accordance with the invention, however, the path of each unit 458 is determined from the data obtained in determining the nozzle paths. If desired, therefore, each unit 458 may follow the same path as its associated nozzle. In some cases, however, it will be desirable to offset the unit path relative to the nozzle path by a selected distance. To this end, the control panel 470 also includes a display 480 on which a suitable menu can be displayed as well as other operating information.
  • step 578 additional information is requested using the menu (step 578), relating to any offset required between each of the nozzle paths and the paths of their associated units.
  • a short delay (step 580) allows the operator to select one of the displayed offsets or none of them (step 582), using a selector button 478 on the control panel. Any offset selected is stored as part of the data file (step 584) .
  • non-volatile memory may be a hard disk or e.g. an EEPROM.
  • the stored data file can then be recalled, e.g. by operation of the control panel 470, whenever a shoe of the relevant style is presented to the machine.
  • the shoe need not be of the same size or "hand" (right or left) as the model shoe which has been digitised, the machine being capable of sensing left and right shoes and also measuring the shoe length.
  • a grading programme is provided which is executed by computer means of the machine (of which of course the memory forms part) .

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

Une machine de montage de la partie latérale et de la surface d'appui du talon possède des ajutages (192) pour application de colle, ainsi que des unités d'insertion (458) d'éléments de fixation servant à insérer des pointes dans les parties latérales de la chaussure montées par collage. Afin de déterminer la trajectoire des ajutages (192), la machine possède un mode de détermination de trajectoire, ladite trajectoire pouvant être déterminée sous la commande de l'opérateur. La trajectoire des unités d'insertion (458) d'éléments de fixation peut être ensuite calculée, à partir de données relatives à la trajectoire des ajutages, par ordinateur. De plus, si souhaité, la trajectoire des unités (458) peut être décalée d'une distance sélectionnée de la trajectoire des ajutages (192).
EP95914480A 1994-04-19 1995-04-13 Machine de montage des parties laterales de tiges de chaussures Ceased EP0756463A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9407581A GB9407581D0 (en) 1994-04-19 1994-04-19 Machine for lasting side portions of shoe uppers
GB9407581 1994-04-19
PCT/GB1995/000850 WO1995028106A1 (fr) 1994-04-19 1995-04-13 Machine de montage des parties laterales de tiges de chaussures

Publications (1)

Publication Number Publication Date
EP0756463A1 true EP0756463A1 (fr) 1997-02-05

Family

ID=10753647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95914480A Ceased EP0756463A1 (fr) 1994-04-19 1995-04-13 Machine de montage des parties laterales de tiges de chaussures

Country Status (3)

Country Link
EP (1) EP0756463A1 (fr)
GB (1) GB9407581D0 (fr)
WO (1) WO1995028106A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT1103199E (pt) * 1999-11-26 2005-02-28 Ohg Molina & Bianchi Spa Maquina para ajustar uma gaspea de calcado sobre uma forma

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031649C1 (de) * 1980-08-22 1982-11-11 Maschinenfabrik Moenus-Turner Gmbh, 6000 Frankfurt Vorrichtung zum Einschlagen von Taecksen im Fersen- und Seitenbereich eines Schuhs
US4407033A (en) * 1980-12-20 1983-10-04 Usm Corporation Combination toe and side lasting machine
GB8612800D0 (en) * 1986-05-27 1986-07-02 Busm Co Ltd Side & heel seat lasting machine
DE3906733A1 (de) * 1989-03-03 1990-09-06 Schoen & Cie Gmbh Schuhzwickmaschine
IT1239938B (it) * 1990-04-03 1993-11-23 Ormac Dispositivo per chiudere,stirare ed inchiodare i fianchi di una tomaiaad un rispettivo sottopiede, in particolare per macchine montatrici diparti di calzatura
GB9225487D0 (en) * 1992-12-05 1993-01-27 British United Shoe Machinery Machine for lasting end portions of shoes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9528106A1 *

Also Published As

Publication number Publication date
GB9407581D0 (en) 1994-06-08
WO1995028106A1 (fr) 1995-10-26

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