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US2028167A - Machine for shaping shoe uppers - Google Patents

Machine for shaping shoe uppers Download PDF

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Publication number
US2028167A
US2028167A US759849A US75984934A US2028167A US 2028167 A US2028167 A US 2028167A US 759849 A US759849 A US 759849A US 75984934 A US75984934 A US 75984934A US 2028167 A US2028167 A US 2028167A
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Prior art keywords
pressing
last
heel
members
shoe
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US759849A
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Arthur F Pym
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United Shoe Machinery Corp
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United Shoe Machinery Corp
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Priority to US759849A priority Critical patent/US2028167A/en
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    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/12Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last

Definitions

  • This invention relates to machines for use in the manufacture of shoes and more particularly to upper-shaping means.
  • the invention is herein illustrated in its application to means for pressing the heel portion of a shoe upper into conformity to an upper-shaping form or last in the lasting of the heel end of a shoe; but it is to be understood that the invention is not limited to means, for operating upon that particular portion of a shoe or to machines for lasting shoes.
  • pressure is commonly applied to the heel end in order not only to impart to the upper materials the shape they are to have in the finished shoe but also to resist any tendency in wiping the margins of the upper materials over the edge of the bottom of the last or form to pull the upper materials out of their desired position.
  • the object of this invention is generally to provide improved upper-pressing means to accomplish the desired result referred to above.
  • this invention in one aspect provides improved upper-pressing means comprising a plurality of pressing members of yielding material disposed in superimposed rows extending from one side of the last to the other about its heel end, these members being expansible into contact with each other in response to upper-shaping pressure exerted against them by the last.
  • the press In order to provide for the separation of the pressing means from the upper for the purpose of allowing the operator to substitute a shoe to be treated for one already operated upon, the press:
  • the pressing elements as herein illustrated in the pressing devices at the sides of the 5 form are constituted by plungers the ends of which are directed toward the form and carry yielding pads between which normally there is a slight clearance space but which, in response to the upper-shaping pressure, are expanded into 20 contact with each other as above described.
  • Provision for adapting the pressing devices for operating upon shoes having different shapes is also made by mounting the plungers to slide in the pressing devices, the sliding movements being 25 yieldingly resisted and subject to adjustment whereby the pressure of different pressing members or plungers can be made the same or regulated at the will of the operator regardless of the size or type of shoe to be operated upon.
  • the pressing members or plungers are disposed in superimposed rows.
  • the pressing members in one of these rows act upon the portion of the upper which borders on the edge of the last bottom and 35 the remainder of the pressing members are paired heightwise of the last with those of the firstmentioned row and are arranged to act upon the upper nearer the top of the last than the firstmentioned members.
  • the pressing device opposite to the end of the last must be capable of accommodating itself to rather widely 45 varying curvatures.
  • the pressing members of this device in the row which act upon the margin .of the upper contiguous to the edge of the last bottom, are mounted for adjustment relatively to each other in difierent direc- 50 tions normal to the surface of the end portion of the form opposite thereto.
  • the pressing device opposite to the heel end of the form acts as an abutment for limiting the movement of the form toward the wipers so as definitely to position the bottom of the last with respect to the field of action of the wipers.
  • the invention also contemplates mounting the abutment for adjustment longitudinally of the form and, as herein illustrated, provides means for effecting this adjustment.
  • Fig. 1 is a view in front elevation of a. part of 7 tion being taken along the line III--I1'I of Fig. 2,
  • Fig. 4 is a sectional plan view, a portion of a shoe on a last being indicated in dotted lines, the
  • Fig. 5 is a plan view of the upper-pressing members of the abutment which supports the rear end of a heel band;
  • Fig. 6 is a sectional view in elevation, the section being taken along the line VIVI of Fig. 5;
  • Fig. 7 is a sectional view in elevation illustrating the pressing action of the pressing members and heel band on the side of ashoe upper, the section being taken along the line VII-VII of i 2-.
  • the invention is illustrated herein as embodied in a bed-lasting machine of a well-known type, features of the general organization of which are disclosed in variousprior United States Letters Patent, including Letters Patent No. 1,018,477, granted on February 27, 1912, and Letters Patent No. 1,417,493, granted on May 30, 1922, both in the name of Matthias Brock. Only such features, therefore, of the general organization as it is necessary to refer to for an understanding of this invention are herein shown and will be described in detail.
  • Machines of this type include means for lasting both the toe and heel end of a shoe, but since the invention is exemplified herein withreference only to the heel-end portion of the shoe, it is unneoessary to illustrate or to describe the toelasting means.
  • the heel-lasting mechanism includes a horizontal yoke 10 mounted to swing in a horizontal plane about a stud (not shown) on the frame to allow the mechanism to be properly adjusted for operating on right and left shoes, as illustrated and explained in the aforesaid Letters Patent.
  • a heelhead carriage I2 Supported in the yoke I0 for move ment in direction lengthwise of the shoe is a heelhead carriage I2 which occupies initially a position near the outer end of the yoke Ii) and is 'moved by the operator from that position to an operative position in which it is retained by a latch 54 which engages a plate it on the yoke.
  • a heel head crank 20 Pivoted at H on the carriage I2 is a heel head crank 20.
  • a holder 22 which indirectly supports a heel band 24 for embracing the upper about the heel end of a last and wipers 26 for wiping the margin of the upper inwardly over the bottom of the last.
  • the heel band 24 may be made of stiff leather, such as sole leather, and it is herein shown as shaped to extend around the end and along the sides of the heel-end portion of the upper and also to conform substantially to the heightwise contour of this portion of the last, although it is sufficiently flexible to permit it to be both closed and opened Widthwise of the last, and to conform under pressure to variations in the contours of right and left lasts as well as lasts of different sizes.
  • the holder 22 has a cylindrical extension 28 (Fig. 3) mounted in a bearing in the head l8 to turn about an axis extending lengthwise of the shoe and is adjustable about this axis by means of a hand crank 36
  • the wipers 26, which are carried by cam plates 8! slidingly mounted at the upper part of the holder 22, are advanced and closed over the heel-seat portion of the shoe by mechanism including a plunger 32 operated by a hand lever 34 pivoted at its rear end on a link 36 carried by the head 18.
  • the last and shoe are supported for the lasting operation at the toe end on a rest 39 and at the heel end on a last pin 49 carried by a slide 42 vertically movable in one arm of a U-shaped support 44 (Fig. 1), the other arm of which has a horizontal extension 46 mounted to slide in a rectilinear path in a guideway in the carriage 2.
  • the extension 45 has rack teeth 48 engaged by a pinion 59 on a shaft 52 mounted in bearings in the carriage l2, the shaft having fixed thereon a hand Wheel 54.
  • Such pressure is imparted to the heel band by w connections operated by a plunger 58 which, as illustrated herein, corresponds to the rod i253 shown in the previously mentioned Letters Patent No. 1,417,493 which may be referred to for a description of the means which operates this red.
  • the connections which are operated by the plunger 58 comprise an arm 60 which is fixed to a shaft 62 rotatably mounted in the heel-head carriage 52. There are fixed to the ends of the shaft 62 arms 64, 64 having spherical cavities arranged to receive the ends of ball-ended links 65, 65, the opposite ends of which are received in spherical cavities in lugs 68, is which extend downwardly from pressing devices 72, i4 respectively.
  • This pressure is exerted against the upper materials by the heel band 24 which is acted upon by a plurality of pressing members, some of which are carried by the pressing devices I2 and I4 and others carried by the abutment- I6, which members in their pressing positions are mounted and adapted to present a unified pressing surface to the upper and heel band throughout their field of action, aswill now be described.
  • the abutment I6 is mounted for adjustment longitudinally of the last in a slideway I8 (Figs. 4 and 6) formed in the top surface of the horizontal web of a base I9 of the holder 22 and can be thus adjusted by turning a rod which is prevented from moving axially in the extension 28 but has threaded engagement with the'rear portion of the abutment I6.
  • the abutment I6 both makes the heel end portion of the upper conform to the shape of the last as a result of the last being moved toward the abutment and also limits the rearwardmovement of the last so as properly to position the margin of the shoe bottom, over which the upper materials are to be wiped, with respect to the travel of the wipers 26.
  • the abutment I6 carries upper and lower pressing members 82 and 84 formed respectively of yielding material, arranged one above the other and disposed opposite to the back seam area of the shoe upper.
  • the member 82 is mounted on a screw 85 threaded into the abut-.- ment I6 and a square key 88, the latter being seated in complemental recessesin the abutment It and the pressing member 82 so as to prevent the latter from being twisted from the screw 86.
  • the pressing member 84 is similarly secured to a slide 96 arranged to have sliding movement longitudinally of the last which is limited by a pin 92 received in a slot inthe abutment I6.
  • the slide is normally urged toward the heel band 24 by a pair of springs 94, 94 which cause the pressing member 84 to be held against the rear end of the heel band 24 at all times and yet al low the latter to be moved rearwardly in response to pressure of the upper until pressure is received by the pressing member 82.
  • abutment I6 In order to adapt the abutment I6 for use in operating on lasts of different sizes and shapes, one of the major differences between which at the heel end is in the curvature of the edge of the bottom, it is provided with a pairof pressing members 96 one of which is mounted at each side of the pressing member 82 on a rod I00 receivedwithin a sleeve 98 which is threaded for adjustment in the abutment I6 in directions extending directly toward and away from the surface of the last opposite thereto.
  • the rods I80 have square heads which are received in complemental holes in the abutment I6 so as to allow the pressing members to be adjusted in the manner referred to above but to prevent their being rotated.
  • the end of the sleeve 98 is perforated so as to receive a socket wrench for the purpose of making the aforesaid adjustment.
  • Each of. the pressing devices I2 and 74 comprises a series of pressing members I62 which, considered with the pressing members 95 and 82, are arranged in a row so as to act upon the area of the shoe upper adjacent to the edge of the shoe bottom along the sides of the upper and around its end. This row of pressing members also acts upon an area of the shoe upper extending heightwise substantially from the edge of the shoe bottom to a locality where the width of the heel end of the last is greatest, as indicated in Fig. 7.
  • Each of the pressing devices I2 and 74 also has a series of pressing members I04 likewise of yielding" material forming with the lower pressing member 84 of the abutment I6 a horizontal row which extends along the sides of. the cone of the last and about its end.
  • Successive pressing members I32 are paired heightwise with corresponding successive pressing members [54 and all are so shaped and spaced as to be separated from each other by a small clearance space when in their normal inoperative positions.
  • all of the pressing members in the pressing devices I2 and I4 and the abutment I6 are made of a yielding material, such as rubber, they are deformed into conformity to the shape of the last in response to upper shaping pressure.
  • This compression of the pressing members H12 and IE4 results in their being expanded widthwise into contact with each other when in their pressing positions in which they present a continuous pressing surface to the heel band throughoutthe entire area up which they act.
  • the pressing members 82, 84 and 95 are so shaped and mounted with respect to each other as to be expanded not only intocontact with each other but also into contact with the adjacent pressing members I02 and we when they are in pressing positions.
  • the pressing members H32 and I94 are supported in juxtaposition to one another on slides I (I6 mounted for movement in directions substantially normal to the portion of the surface of the last opposite thereto in bores its in the outer end of each of which is screwed an adjustable bushing HO.
  • Springs 2 are received within the bores I03 and bear against the slides I05 and the bushings III) so as to urge the pressing members I 02 and" I04 carried thereby toward the last.
  • each spring I I2 can be so positioned preliminary to a pressing operation as to cause the pressing members I52 and I04 to impart substantially the same pressures or any desired diiferent pressures to different lasts regardless of their widths. Movements of the pressing members I82 and I94 toward the last are limited, when the pressing members 12 and I4 are moved away from the last, by check nuts H4 which are threaded on rods H6 fixed to the slides I06 and arranged to slide freely within the bushings I I9.
  • the pressing members 422 and I04 are also prevented from rotating in the bores I 58 by pins I I8 carried by the slides i235 and received in slots formed in the pressingdevices I2 and I4.
  • the pressing devices "I2 and I4 are carried ,by
  • the heel band 24 is mounted at its ends on the pressing devices I2 and I4 so as to have limited movement relative to the pressing devices both laterally and longitudinally of the shoe, to facilitate its being pressed evenly against the upper, but not heightwise thereof to insure against
  • the connections between the heel band 24 and the pressing devices 12, I4 are similar in both instances, and hence will be described with reference only to the pressing device I4.
  • a hinge member I 26 which is riveted to an end of the heel band 24 is mounted on a stud I28, the latter being received in a slot I34 extending longitudinally of the last in a slide I32 so as to allow the heel band certain freedom of movement in accommodating itself to a shoe upper held thereagainst.
  • a spring I34 one end of which is fixed to the slide I32 bears at its other end against the member I26 so as to urge the heel band 24 toward the abutment I6.
  • the slide I32 may have limited movement with respect to the pressing device I4 laterally of the shoe both to allow the pressing device I4 to move inward relatively to the heel band without causing any pressure to be imparted directly to the heel band through the slide I32 and also for the purpose of accommodating various widths of lasts and to prevent excessive flexing of the heel band 24 when the pressing devices I2 and 14 are swung away from the last toward their inoperative positions.
  • the slide I32 is mounted to slide laterally of the last in a boss I35 extending from the end of the pressing device I4, the boss being bifurcated to receive a flattened portion I38 of the slide I32 and thus to prevent it from being rotated.
  • a collar I46 and a shoulder I 42 on the slide I 32 cooperate with opposite extremities of the boss I38 to limit the movement of the slide I32.
  • the abutment I6 is adjusted longitudinally of the shoe by turning the rod 80 between successive'trial movements of the shoe, as described above, until it is found that the wipers 26 have the desired amount of overtravel across the margin of the shoe bottom.
  • the operator will next operate the wipers 26 once or twice barely across the edge of the last bottom partially to bend the marginal portions of the upper materials about the last corner preliminarily to clamping the heel band 24 against the sides of the shoe upper and wiping the margin of the upper materials about the entire heel end of the last.
  • the pressing devices I 2 and I4 are next brought into action by operating a knee pad (not shown) at the front of the machine which actuates mechanism described in Letters Patent No. 1,417,493 for causing the plunger 58 to move to the right (Fig. 1) and hence to operate connections between it and the pressing devices I2 and I4 to cause the latter to swing toward the shoe about the center of the stud I24 as an axis.
  • the pressing devices I2 and I4 shall apply their pressure to the heel band progressively from the area acted upon by the abutment 16 toward the forward ends of the heel band.
  • the check nuts I I4 are to be adjusted on the rods I It so that the pressing members I 42 and I64 extending from the abutment 16 toward the forward ends of the heel band are brought into play in succession as the pressing devices I2 and I4 are moved into their pressing relation.
  • the operator After the heel band 24 has been pressed against the upper so as to make it conform to the shape of the last in the above-described manner, the operator then, in accordance with usual lasting procedure, operates the Wipers 26 several times back and forth across the marginal portion of the shoe bottom and then drives a row of tacks into the bottomof the heel end of the shoe in order to hold the upper materials in their lasted position.
  • the pressing devices 12 and 14 are then separated from each other, and the holder 22 is moved away from the shoe support 44 to facilitate the substitution of a shoe to be lasted for that already operated upon.
  • a'support for a last and means for pressing an upper on said last into conformity to the side and end surfaces of the last, said means comprising pairs of pressing members arranged to act upon the upper from the edge of the shoe bottom to the top edge of the upper, said members of each pair being expansible heightwise into contact with each other in response to upper-shaping pressure thereby to provide a pressing surface which is continuous heightwise of the upper, said pairs also being arranged in a series extending along the sides of the last and around the end and being expansible into contact with each other thereby to afford a pressure surface extending continuously along the sides and around the end of the last.
  • a support for a last and means for pressing a shoe upper on said last into conformity to the shape of the side and heel end surfaces of the last, said means comprising pressing members of yielding material in superimposed rows extending from one side of the last to the other about the heel end thereof, said members being expansible into contact with one another in response to upper shaping pressure exerted thereagainst by the last, the ends of said pressing members being directed toward the last to present a continuous pressing surface throughout the extent of the pressing members heightwise and longitudinally of the upper.
  • a support for a last means forpressing a shoe upper on said last into conformity t the contour thereof, said support and means being movable relatively to each other into pressing relation, said pressing means comprising pressing members arranged in a plurality of series extending about the heel end of the last from one side to the other, said members, being directed endwise toward the last, and means for adjusting the positions of said pressing members individually in said pressing means.
  • a support for a last and means for'pressing a shoe upper on said last into conformity to the contour thereof, said support and pressing means being relatively movable into and out of pressing relation, said pressing means comprising plungers mounted for adjustment toward and away from the last, the ends of said plungers being formed of yielding material and shaped and arranged to be expanded into contact with each other in response to upper shaping pressure exerted thereagainst by the last.
  • a support for a last means for pressing a shoe upper on said last into conformity to the contour thereof, said support and pressing means being relatively movable into and out of pressing relation
  • said-pressing means comprising a plurality of plungers mounted for endwise adjustment toward and away from the last, said plungers being paired heightwise of the last and arranged in series extending horizontally about the last from one side to the other, each of said plungers carrying at its end adjacent to the last a yielding pad shaped and arrangedto be expanded into contact with an adjacent pad in response to upper shaping pressure exerted thereagainst by the last.
  • a support for a last means for pressing a shoe upper on the last into conformity to the contour thereof, said means comprising a plurality of pressing members havingends formed of yielding material and directed toward the respective portions of the last es t th reto m ans e elat ve w i r "l6.
  • said support and pressing means toward each other into pressing relation thereby to cause said pressing means to act upon the upper and the yielding ends of said pressing members to be expanded into contact with each other, and means against the resistance of which said pressing members yield bodily as the support and pressing means are moved into their pressing relation.
  • a support for a last, and means for pressing a shoe upper on said last into conformity to the contour thereof said means comprising a plurality of yieldingly mounted pressing members arranged in two horizontally extending series, the ends of said members being directed toward the heel end of the last and being expansible into contact with one another in response to upper-shaping pressure exerted thereagainst by the last.
  • a support for a last means for pressing an upper on said last into conformity to the contour thereof, said means comprising a plurality of yieldingly mounted pressing members arranged in rows extending from one side of the last to the other about the heel end thereof, the ends of said members directed toward the last being formed of yielding material, and means for relatively moving said support and pressing means toward each other thereby to cause said members yieldingly to press the upper against the last and to be expanded into contact with one another.
  • a sup-port for a last means for pressing an upper on the last into conformity to the contour thereof, said means ,comprising a plurality of pressing members mounted yieldingly to act upon portions of the upper opposite thereto, the ends of said pressing members carrying yielding pads, adjacent pads being in juxtaposition, and means for relatively moving said support and pressing means toward each other thereby to cause said members to act on the respective portions of the upper opposite thereto and to be expanded into contact with one another.
  • a support for a last, and means for pressing a shoe upper on said last into conformity to the shape of the side and heel end surfaces of the last said means comp-rising a plurality of devices movable laterally of the last and having pressing members mounted therein for movement relatively to each other in response to pressure exerted thereagainst from the upper, the ends of said members being directed toward the last and expansible into contact with each other in response to said pressure exerted thereagainst?
  • said means comprising pressing devices mounted for movement toward and away from the support, each device having yieldably mounted therein a plurality of pressing members the ends of which are directed toward the last and carry yielding pads which are expansible into contact with each other in response to upper-shaping pressure exerted thereagainst by the last.
  • a support for a last means for pressing a shoe upper on said last into conformity to the shape of the side and heel end surfaces of the last, said means comprising press.
  • each of said pressing devices mounted at opposite sides of the last for movement toward and away therefrom, each of said pressing devices carrying a plurality of to each other in response to upper-shaping pres.- sure exerted thereagainst by the last, yielding means associated with each of said pressing members against the resistance of which said members are relatively movable, and means for adjusting said yielding means individually whereby the yielding pressure of any of said members can be regulated with respect to that of the other members.
  • a support for anupper shaping form pressing members of yielding material the ends of which are directed toward an end of the form and are shaped to press the end portion of an upper on said form into conformity to the shape thereof, said pressing members also being mounted for adjustment in directions substantially normal to the end surface of the form opposite thereto, and means for pressing the upper into conformity to the sides of the form having a plurality of yielding members paired heightwise of the form and disposed in series extending longitudinally of the form so as to act upon the side portions of the upper extending from the area at the end thereof acted upon by said first-mentioned pressing members toward the waist portion of the upper.
  • a support for an upper-shaping form means for pressing an upper on said form into conformity to the shape of the side and end surfaces of the form, said means comprising a device having a pressing member disposed opposite to the extreme end portion of the form and a pressing member at each side of said first-mentioned pressing member mounted for adjustment in directions substantially normal to the surface of the form opposite thereto, and a pressing device at each side of said form having a plurality of pressing members arranged to act upon the side portions of the upper extending from the area at the end thereof acted upon by the first-mentioned device toward the waist portion of the upper.
  • a support for an upper-shaping form means for pressing an upper on said form into conformity to the shape of the side and end surfaces of the form, said means comprising a device having pressing members mounted for adjustment relatively to each other in different directions normal to the surface of the end portion of the form opposite thereto,
  • a pressing device at each side of said form having a plurality of pressing members paired heightwise of the form and disposed in series extending longitudinally of the form, said members being adapted to be deformed into conformity to the shape of the form and expanded into contact with one another in response to uppershaping pressure imparted by the form.
  • a support for a last, means for pressing the heel end of a shoe upper on said last into conformity to the end thereof comprising. a pressing device having fixed and yieldingly mounted members adapted and arranged to operate upon the back seam area of the upper, a pressing member at each side of said fixed member mounted for adjustment toward and away from the last in directions substantially normal to the portion of the surface of the last opposite thereto, and a pressing device at each side of the last constructed and arranged to exert pressure against portions of the upper extending from the area acted upon by said firstmentioned device along the sides of the heel end of the last.
  • means for pressing the heel end of a shoe upper on said last into conformity to the shape of the end thereof comprising a pressing device opposite to the heel end of the last and mounted for adjustment longitudinally thereof, said device comprising a plurality of pressing members mounted for adjustment toward and away from the last in different directions substantially nor-- mal to the portion of the last opposite thereto and a yieldingly mounted pressing member adapted and arranged to operate upon the back seam area of the upper, and pressing devices mounted for movement widthwise of the last to cause pressure to be exerted against portions of the upper extending from the area acted upon by said first-mentioned device along the sides of the heel end of the last.
  • a support for a last means for pressing the heel end of a shoe upper on said last into conformity to the end thereof comprising fixed and yieldingly mounted pads and a pad at each side of said fixed pad mounted for adjustment toward and away from the last, and pressing devices mounted for movement widthwise of the last to exert pressure against portions of the upper extending from the area acted upon by said pads along the sides of the heel end of the last.
  • a support for an upper-shaping form means for pressing an upper on said form into conformity to the shape of the side and end surfaces of the form, said means comprising a pressing device mounted for adjustment longitudinally of the form and having fixedly mounted thereon opposite to the heel end of the form a yielding pad, a yielding pad at each side of said first-mentioned pad and mounted for adjustment in directions substantially normal to the surface of. the form upon which it acts, and a pressing device at each side of said form having a plurality of pressing members arranged to act upon the side portions of the upper extending toward the waist portion thereof from the area acted upon bysaid first-mentioned pressing device.
  • a support for a last means for pressing a shoe upper on said last into conformity to the shape thereof, said support and pressing means being movable toward each other into pressing relation, said pressing means comprising a pressing device having an upper and a lower pressing member opposite to the back seam area of the shoe upper, the latter of which pressing members is.
  • said pressing device also com prising a pressing member at each side of said upper pressing member and mounted for adjustment normal to the surface of the last opposite thereto, and a pressing device at each side of said form having pressing members paired heightwise of the form and arranged in series extending when in pressing position fro-m the area at the end of the upper acted upon by said first-mentioned pressing device toward the waist portion thereof.
  • a support for a last means for pressing an upper on said last into conformity to the shape thereof comprising a pressing device opposite to an end of the last and a pressing device at each side thereof, said last and pressing devices being relatively movable toward each other into pressing relation, said pressing devices having a plurality of pressing the end of the upper toward the waist portion at each side thereof arranged to act upon the portion of the upper contiguous to the edge of the shoe bottom, said pressing devices also having a row of pressing members paired heightwise .with the adjacent members of said first-mentioned series arranged to act upon the area of the upper contiguous to the top edge thereof, all of said pressing members being adapted to be deformed when in their pressing positions into conformity to the shape of the respective portions of the last opposite thereto and to be expanded into contact with one another thereby to present a unifled pressing surface to the upper throughout the area acted upon by said members.
  • a support for a last a flexible member for conforming a shoe upper to an end and adjacent side portions of the last, means for pressing said flexible member against the upper comprising a plurality of pressing members arranged in series extending horizontally from one side of the last to the other about the heel end, the ends of said members being directed toward the last and being formed of yielding material, and means for moving said support and pressing means toward each other thereby to cause said pressing members to press said flexible member against the upper and to cause the ends of the flexible members to be expanded into contact with one another thereby to present a continuous pressing surface to said flexible member,
  • a support for a last, a flexible member for conforming a shoe upper to the heel end and adjacent side portions of the last, and means for pressing said flexible member against the upper comprising pressing members of yielding material disposed in rows extending from one side of the last to the other about the heel end thereof, said members being deformable into conformity to the shape of the portion members arranged in a series extending about of said flexible member opposite thereto and expafisible into contact with one another inre sponse to pressure exerted thereagainst by said flexible member.
  • a support for a last a flexible member for conforming a shoe upper to the heel end and adjacent side portions of the last, means for pressing said flexible member against the upper comprising a plurality of pressing members arranged in series extending horizontally about the heel end of the last from one side to the other, yielding means associated with each of said pressing members against the resistance of which said members are relatively movable, and means for adjusting said yielding means individually whereby the pressure of said members against said flexible member can be rendered uniform.
  • a support for a last a heel band for conforming a shoe upper to the heel portion of the last, means for pressing said heel band against the upper comprising a plurality of plungers the ends of which directed toward the heel band are formed of yielding material, yielding means associated with each of said plungers against the resistance of which they are relatively movable in response to pressure exerted by the heel band, and means for adjusting said yielding means individually whereby the pressures of said plungers against the heel band can be rendered uniform,
  • a support for a last, a heel band for conforming a shoe upper to the heel'end of the last, and means for pressing the heel band against the upper comprising a plurality of pressing members arranged in rows extending horizontally from one side of the last to the other about the heel end, the ends of said pressing members carrying yielding pads arranged and adapted to be expanded into contact with one another in response to pressure exerted against them by the heel band.
  • a support for a last, a heel band for embracing the heel end of an upper on the last, and means for pressing said heel band against the upper comprising a plurality of pressing members arranged in rows one of which is arranged to act upon the portion of the heel band opposite to the portion of the upper contiguous to the edge of the shoe bottom, the pressing members in another of said rows being mounted and arranged to press against the heel band from the area acted upon by said first mentioned row of pressing members toward the top edge of the heel band, each of said pressing members being adapted to be deformed into conformity to the shape of the portions of the heel band opposite thereto and to be expanded into contact with the adjacent pressing members in response to the pressure of the heel band thereagainst.
  • a support for an upper-shaping form, a heel band for embracing the heel end of an upper on the form, means for pressing said heel band against the upper comprising a device having pressing members mounted' for adjustment relatively to each other in different directions normal to the surface of the end portion of the form opposite thereto, and a pressing device at each side of said form having a plurality of members paired heightwise of the form and disposed in series extending longitudinally thereof, said members being adapted to be deformed into conformity tothe shape of the portions of the heel band upon which they act in response to pressure imparted by the heel band.
  • a support for a last a heel band for embracing the heel end of an upper on said last, means for pressing the heel end of the heel band against the upper comprising fixed and yieldingly mounted pads disposed oppoband from the area acted upon by said pads along the sides of the heel end of the last.
  • a flexible member for conforming a shoe upper to the heel portion of a last means for pressing said flexible member against the upper comp-rising a pressing device at each side of said last having plungers arranged in a series of pairs extending along the sides of the last toward the extreme heel end, the ends of said plungers being directed toward the last and carrying yielding pads which are expansible into contact with each other in response to pressure of the flexible member thereagainst thereby to afford a continuous support for the latter, and a pressing device for acting upon that area of said flexible member between said pads at the end of the last comprising a yielding pad mounted for adjustment longitudinally of the last and a yielding pad at each side thereof mounted for adjustment in directions substantially normal to the surface of the last opposite thereto.
  • a support for a last, wipers for wiping the margin of the heel end of an upper on said last inwardly over the bottom thereof, means for pressing said upper into conformity to the shape of the heel end of the last comprising a device arranged to position the last with'respect to the field of action of said wipers having a pressing member disposed opposite to the extreme end portion of the last and a pressing member at each side of said first-mentioned pressing member mounted for adjustment in directions substantially normal to the surface of the last opposite thereto, and a pressing device at each side of said last having a plurality of pressing members arranged to act upon the side portions of the upper extending from the area thereof acted upon by the first-mentioned device toward the waist portion of the upper.
  • a support for a last, wipers for wiping the margin of the heel end of an upper on said last inwardly over the bottom thereof, means for pressing the heel end of the upper into conformity to the end thereof comprising a pressing device having fixed and yieldingly mounted members adapted and arranged to operate upon the back seam area of the upper and to position the last longitudinally thereof with respect to the field of action of said wipers, a pressing member at each side of said fixed member mounted for adjustment toward and away from the last in a direction substantially normal to the portion of the surface of the last 40 device along the sides of the heel end of the last.
  • a support for a last wipers for wiping the margin of the heel end of an upper on said last inwardly over the bottom thereof, means for pressing the heel end of the upper into conformity to the shape of the last andfor positioning the latter with respect to the field of action of the wipers comprising a pressing device opposite to the heel end of the last and mounted for adjustment longitudinally thereof,
  • said device comprising a plurality of pressing members mounted for adjustment relatively to each other toward and away from the portion of the last adjacent to the edge of the bottom in different directions substantially normal to the respective portions of the last opposite thereto,

Landscapes

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

Description

Jan. 21, 1936. .A PYM 2,028,167
MACHINE FOR SHAPING SHOE UPPERS Filed Dec. :51, 1954 s Sheets-Sheet 1 Jan. 21, 1936. A PYM MACHINE FOR SHAPING SHOE UPPERS Fil ed Dec. 51, 1954 s Sheets-Sheet 2 Jan. 21, A PYM MACHINE FOR SHAPING SHOE UPPERS Filed Dec. 31, 1954 3 Sheets-Sheet 5 VP m Patented Jan. 21,1936
MACHINE FOR SVHAPING SHOE UPPERS Arthur F. Pym, Swampscott, Mass, assignor to United Shoe Machinery Corporation, Paterson, N. 3., a corporation of New Jersey Application December 31, 1934, Serial No- 759,849
38 Claims. (Cl. 12-14.1)
This invention relates to machines for use in the manufacture of shoes and more particularly to upper-shaping means. The invention is herein illustrated in its application to means for pressing the heel portion of a shoe upper into conformity to an upper-shaping form or last in the lasting of the heel end of a shoe; but it is to be understood that the invention is not limited to means, for operating upon that particular portion of a shoe or to machines for lasting shoes.
In the use of some machines for shaping shoe upper materials into conformity to a last or other form, pressure is commonly applied to the heel end in order not only to impart to the upper materials the shape they are to have in the finished shoe but also to resist any tendency in wiping the margins of the upper materials over the edge of the bottom of the last or form to pull the upper materials out of their desired position.
That is, if the upper at certain localities, especially those near the edge of the last bottom, is not pressed against the last during the wiping operation, such unpressed parts may beunduly stretched and hence tend to become distorted themselves or to distort the shoe when it is removed from the last. Accordingly, an important desideratum of such a pressing operation is that pressure shall be exerted against all parts of the upper which otherwise. might be unduly stretched.
The object of this invention is generally to provide improved upper-pressing means to accomplish the desired result referred to above.
In view of the foregoing, this invention in one aspect provides improved upper-pressing means comprising a plurality of pressing members of yielding material disposed in superimposed rows extending from one side of the last to the other about its heel end, these members being expansible into contact with each other in response to upper-shaping pressure exerted against them by the last. As a result of this construction, insurance is aiforded that there will not be any interruption in the application of pressure between adjacent pressing members; and further continuity in the application of upper-shaping pressure by the pressing means is secured by the ability of the pressing members, being formed of a yielding material, to be deformed in response to upper shaping pressure into conformity to the respective portions of the upper upon which the pressing members act.
In order to provide for the separation of the pressing means from the upper for the purpose of allowing the operator to substitute a shoe to be treated for one already operated upon, the press:
- that when the pressing devices are in their pressing position their fields of action are contiguous. This construction affords a pressing surface which is uninterrupted between different pressing devices and which extends substantially con- 10 tinuously about the heel end of the form from one side to the other. I
In accordance with another feature of the invention, the pressing elements as herein illustrated in the pressing devices at the sides of the 5 form are constituted by plungers the ends of which are directed toward the form and carry yielding pads between which normally there is a slight clearance space but which, in response to the upper-shaping pressure, are expanded into 20 contact with each other as above described. Provision for adapting the pressing devices for operating upon shoes having different shapes is also made by mounting the plungers to slide in the pressing devices, the sliding movements being 25 yieldingly resisted and subject to adjustment whereby the pressure of different pressing members or plungers can be made the same or regulated at the will of the operator regardless of the size or type of shoe to be operated upon. As 30 herein illustrated, the pressing members or plungers, as stated above, are disposed in superimposed rows. The pressing members in one of these rows act upon the portion of the upper which borders on the edge of the last bottom and 35 the remainder of the pressing members are paired heightwise of the last with those of the firstmentioned row and are arranged to act upon the upper nearer the top of the last than the firstmentioned members. 0
Since the heel portions of lasts of different styles and sizes are curved in much greater degree at the end than at the sides, the pressing device opposite to the end of the last must be capable of accommodating itself to rather widely 45 varying curvatures. To this end, the pressing members of this device, in the row which act upon the margin .of the upper contiguous to the edge of the last bottom, are mounted for adjustment relatively to each other in difierent direc- 50 tions normal to the surface of the end portion of the form opposite thereto.
When pressing means of the above character are embodied in a machine having a heel band and/or wipers for wiping the marginal portion of the heel end of an upper over an insole on a last or form, the pressing device opposite to the heel end of the form acts as an abutment for limiting the movement of the form toward the wipers so as definitely to position the bottom of the last with respect to the field of action of the wipers. In this connection the invention also contemplates mounting the abutment for adjustment longitudinally of the form and, as herein illustrated, provides means for effecting this adjustment.
These and other features of the invention will be hereinafter described in connection with the accompanying drawings and will be pointed out in the appended claims.
In the drawings,
Fig. 1 is a view in front elevation of a. part of 7 tion being taken along the line III--I1'I of Fig. 2,
showing parts of the upper-forming mechanism; Fig. 4 is a sectional plan view, a portion of a shoe on a last being indicated in dotted lines, the
section being taken along the line IV-IV of Fig. 1;
Fig. 5 is a plan view of the upper-pressing members of the abutment which supports the rear end of a heel band;
Fig. 6is a sectional view in elevation, the section being taken along the line VIVI of Fig. 5; and
Fig. 7 is a sectional view in elevation illustrating the pressing action of the pressing members and heel band on the side of ashoe upper, the section being taken along the line VII-VII of i 2-.
The invention is illustrated herein as embodied in a bed-lasting machine of a well-known type, features of the general organization of which are disclosed in variousprior United States Letters Patent, including Letters Patent No. 1,018,477, granted on February 27, 1912, and Letters Patent No. 1,417,493, granted on May 30, 1922, both in the name of Matthias Brock. Only such features, therefore, of the general organization as it is necessary to refer to for an understanding of this invention are herein shown and will be described in detail.
Machines of this type include means for lasting both the toe and heel end of a shoe, but since the invention is exemplified herein withreference only to the heel-end portion of the shoe, it is unneoessary to illustrate or to describe the toelasting means. The heel-lasting mechanism includes a horizontal yoke 10 mounted to swing in a horizontal plane about a stud (not shown) on the frame to allow the mechanism to be properly adjusted for operating on right and left shoes, as illustrated and explained in the aforesaid Letters Patent. Supported in the yoke I0 for move ment in direction lengthwise of the shoe is a heelhead carriage I2 which occupies initially a position near the outer end of the yoke Ii) and is 'moved by the operator from that position to an operative position in which it is retained by a latch 54 which engages a plate it on the yoke.
Pivoted at H on the carriage I2 is a heel head crank 20. Mounted on the head H3 is a holder 22 which indirectly supports a heel band 24 for embracing the upper about the heel end of a last and wipers 26 for wiping the margin of the upper inwardly over the bottom of the last. The heel band 24 may be made of stiff leather, such as sole leather, and it is herein shown as shaped to extend around the end and along the sides of the heel-end portion of the upper and also to conform substantially to the heightwise contour of this portion of the last, although it is sufficiently flexible to permit it to be both closed and opened Widthwise of the last, and to conform under pressure to variations in the contours of right and left lasts as well as lasts of different sizes. The holder 22 has a cylindrical extension 28 (Fig. 3) mounted in a bearing in the head l8 to turn about an axis extending lengthwise of the shoe and is adjustable about this axis by means of a hand crank 36 The wipers 26, which are carried by cam plates 8! slidingly mounted at the upper part of the holder 22, are advanced and closed over the heel-seat portion of the shoe by mechanism including a plunger 32 operated by a hand lever 34 pivoted at its rear end on a link 36 carried by the head 18.
The last and shoe are supported for the lasting operation at the toe end on a rest 39 and at the heel end on a last pin 49 carried by a slide 42 vertically movable in one arm of a U-shaped support 44 (Fig. 1), the other arm of which has a horizontal extension 46 mounted to slide in a rectilinear path in a guideway in the carriage 2. The extension 45 has rack teeth 48 engaged by a pinion 59 on a shaft 52 mounted in bearings in the carriage l2, the shaft having fixed thereon a hand Wheel 54. By means of this hand wheel, after the approximate proper relative heightwise positioning of the shoe and the heel band 245 has been effected by a treadle in a well-known manthe operator imparts to the shoe support movemerit to carry the shoe lengthwise into position for its heel end to be embraced by the heel band 24 and to force its heel-end face firmly against the heel band. To hold the shoe support against return movement, a latch member 53 is provided for engaging teeth (not shown) on the rear side of the hand wheel 54.
In order to cause the shoe upper to be pressed into conformity to the shape of the last not only at the end of the heel portion but also at the sides thereof, pressure is imparted to the heel band 24 continuously from each end of the heel band near the junction of the shank and the heel portion of the shoe around the heel end.
Such pressure is imparted to the heel band by w connections operated by a plunger 58 which, as illustrated herein, corresponds to the rod i253 shown in the previously mentioned Letters Patent No. 1,417,493 which may be referred to for a description of the means which operates this red. The connections which are operated by the plunger 58 comprise an arm 60 which is fixed to a shaft 62 rotatably mounted in the heel-head carriage 52. There are fixed to the ends of the shaft 62 arms 64, 64 having spherical cavities arranged to receive the ends of ball-ended links 65, 65, the opposite ends of which are received in spherical cavities in lugs 68, is which extend downwardly from pressing devices 72, i4 respectively.
' The construction thus rar'bneny outimd, ex= 'cept for the pressing devices 72 and I4 themselves, is substantially like what has been used heretofore in machines of the type illustrated herein and in view of the disclosures in the LettersPatent mentioned above no further description of these parts will be required.
Acting upon the heel band 24 over its area at the heel end not acted upon by the pressing de* vices I2 and I4 is another pressing device or abutment I6 which resists the rearwardly directed force of the shoe imparted by the shoe support 44. In lasting the heel end of the shoe it is desirable to apply pressure uniformly along the sides and about the heel end of the upper over a substantial area extending heightwise of the upper from the edge of the bottom of the last to and including the cone portion thereof. Such pressure holds the upper materials at the side and end surfaces of the last immovable against the action of the wipers in wiping the marginal edges of the upper materials over the last bottom and makes the upper materials conform closely to the shape of the last. This pressure is exerted against the upper materials by the heel band 24 which is acted upon by a plurality of pressing members, some of which are carried by the pressing devices I2 and I4 and others carried by the abutment- I6, which members in their pressing positions are mounted and adapted to present a unified pressing surface to the upper and heel band throughout their field of action, aswill now be described.
The abutment I6 is mounted for adjustment longitudinally of the last in a slideway I8 (Figs. 4 and 6) formed in the top surface of the horizontal web of a base I9 of the holder 22 and can be thus adjusted by turning a rod which is prevented from moving axially in the extension 28 but has threaded engagement with the'rear portion of the abutment I6. The abutment I6 both makes the heel end portion of the upper conform to the shape of the last as a result of the last being moved toward the abutment and also limits the rearwardmovement of the last so as properly to position the margin of the shoe bottom, over which the upper materials are to be wiped, with respect to the travel of the wipers 26. To this end, the abutment I6 carries upper and lower pressing members 82 and 84 formed respectively of yielding material, arranged one above the other and disposed opposite to the back seam area of the shoe upper. The member 82 is mounted on a screw 85 threaded into the abut-.- ment I6 and a square key 88, the latter being seated in complemental recessesin the abutment It and the pressing member 82 so as to prevent the latter from being twisted from the screw 86. The pressing member 84 is similarly secured to a slide 96 arranged to have sliding movement longitudinally of the last which is limited by a pin 92 received in a slot inthe abutment I6. The slide is normally urged toward the heel band 24 by a pair of springs 94, 94 which cause the pressing member 84 to be held against the rear end of the heel band 24 at all times and yet al low the latter to be moved rearwardly in response to pressure of the upper until pressure is received by the pressing member 82. In order to adapt the abutment I6 for use in operating on lasts of different sizes and shapes, one of the major differences between which at the heel end is in the curvature of the edge of the bottom, it is provided with a pairof pressing members 96 one of which is mounted at each side of the pressing member 82 on a rod I00 receivedwithin a sleeve 98 which is threaded for adjustment in the abutment I6 in directions extending directly toward and away from the surface of the last opposite thereto. The rods I80 have square heads which are received in complemental holes in the abutment I6 so as to allow the pressing members to be adjusted in the manner referred to above but to prevent their being rotated. The end of the sleeve 98 is perforated so as to receive a socket wrench for the purpose of making the aforesaid adjustment.
Each of. the pressing devices I2 and 74 comprises a series of pressing members I62 which, considered with the pressing members 95 and 82, are arranged in a row so as to act upon the area of the shoe upper adjacent to the edge of the shoe bottom along the sides of the upper and around its end. This row of pressing members also acts upon an area of the shoe upper extending heightwise substantially from the edge of the shoe bottom to a locality where the width of the heel end of the last is greatest, as indicated in Fig. 7. Each of the pressing devices I2 and 74 also has a series of pressing members I04 likewise of yielding" material forming with the lower pressing member 84 of the abutment I6 a horizontal row which extends along the sides of. the cone of the last and about its end. Successive pressing members I32 are paired heightwise with corresponding successive pressing members [54 and all are so shaped and spaced as to be separated from each other by a small clearance space when in their normal inoperative positions. However, sinceall of the pressing members in the pressing devices I2 and I4 and the abutment I6 are made of a yielding material, such as rubber, they are deformed into conformity to the shape of the last in response to upper shaping pressure. This compression of the pressing members H12 and IE4 results in their being expanded widthwise into contact with each other when in their pressing positions in which they present a continuous pressing surface to the heel band throughoutthe entire area up which they act. Similarly, the pressing members 82, 84 and 95 are so shaped and mounted with respect to each other as to be expanded not only intocontact with each other but also into contact with the adjacent pressing members I02 and we when they are in pressing positions. The pressing members H32 and I94 are supported in juxtaposition to one another on slides I (I6 mounted for movement in directions substantially normal to the portion of the surface of the last opposite thereto in bores its in the outer end of each of which is screwed an adjustable bushing HO. Springs 2 are received within the bores I03 and bear against the slides I05 and the bushings III) so as to urge the pressing members I 02 and" I04 carried thereby toward the last. By means of the bushings l ID each spring I I2 can be so positioned preliminary to a pressing operation as to cause the pressing members I52 and I04 to impart substantially the same pressures or any desired diiferent pressures to different lasts regardless of their widths. Movements of the pressing members I82 and I94 toward the last are limited, when the pressing members 12 and I4 are moved away from the last, by check nuts H4 which are threaded on rods H6 fixed to the slides I06 and arranged to slide freely within the bushings I I9. The pressing members 422 and I04 are also prevented from rotating in the bores I 58 by pins I I8 carried by the slides i235 and received in slots formed in the pressingdevices I2 and I4. The pressing devices "I2 and I4 are carried ,by
. interference with the wipers 2E.
arms I2!) and I22'respectivelywhich are pivoted on a common stud I24 so situated in the base 19 of the holder 22 as to cause the pressing members I42 and I04 adjacent to the abutment I6 to be moved into juxtaposition to the pressing members on this abutment when swung into operating position, as illustrated in Figs. 2 and 4. Springs I25,I25 connecting the holder 22 and the pressing devices normally urge them away from the last when the upper shaping pressure is relieved.
The heel band 24 is mounted at its ends on the pressing devices I2 and I4 so as to have limited movement relative to the pressing devices both laterally and longitudinally of the shoe, to facilitate its being pressed evenly against the upper, but not heightwise thereof to insure against The connections between the heel band 24 and the pressing devices 12, I4 are similar in both instances, and hence will be described with reference only to the pressing device I4. A hinge member I 26 which is riveted to an end of the heel band 24 is mounted on a stud I28, the latter being received in a slot I34 extending longitudinally of the last in a slide I32 so as to allow the heel band certain freedom of movement in accommodating itself to a shoe upper held thereagainst. A spring I34, one end of which is fixed to the slide I32 bears at its other end against the member I26 so as to urge the heel band 24 toward the abutment I6. The slide I32 may have limited movement with respect to the pressing device I4 laterally of the shoe both to allow the pressing device I4 to move inward relatively to the heel band without causing any pressure to be imparted directly to the heel band through the slide I32 and also for the purpose of accommodating various widths of lasts and to prevent excessive flexing of the heel band 24 when the pressing devices I2 and 14 are swung away from the last toward their inoperative positions. To this end, the slide I32 is mounted to slide laterally of the last in a boss I35 extending from the end of the pressing device I4, the boss being bifurcated to receive a flattened portion I38 of the slide I32 and thus to prevent it from being rotated. A collar I46 and a shoulder I 42 on the slide I 32 cooperate with opposite extremities of the boss I38 to limit the movement of the slide I32.
The operation of a machine embodying this invention will now be summarized. The toe rest 39 and the last pin 40 having been adjusted relatively to each other in a manner well known to an operator skilled in the use of a bed-lasting machine of the type illustrated, so that the bottom of a shoe supported thereby will be in proper relation to the lower surfaces of the wipers 26, the carriage I2 is moved bodily to the left (Fig. 1) in the yoke I4 until the hooked end of the latch I4 engages the plate I6. If necessary, a final alinement of the wipers and the bottom of the heel end of the shoe may be eifected at this stage by the use of the hand cranks 20 and 3B. The hand wheel 54 is then turned in a counterclockwise direction (Fig. 1) so as bodily to move the support 44 and the shoe toward the holder 22 to cause the rear end of the heel band 24 closely to embrace the corresponding portion of the upper and last. This movement is resisted first by the pressing member 84 of the abutment I6, the slide 98 being moved in its slideway I8 toward the right-hand end of the machine until the force of the shoe against the heel band 24 is sufficient to cause the pressing members 82 and 95 to be compressed at least until they are expanded widthwise in contact with each other, so that they shall present a unified pressing surface to the rear portion of the heel band 24. The abutment I6 also serves a further purpose, namely, that of variablylimiting the rearward movement of. the shoe with respect to the path of the wipers 26; To this end the abutment I6 is adjusted longitudinally of the shoe by turning the rod 80 between successive'trial movements of the shoe, as described above, until it is found that the wipers 26 have the desired amount of overtravel across the margin of the shoe bottom. In operating upon a shoe in a machine which has already been adjusted in the foregoing manner, the operator will next operate the wipers 26 once or twice barely across the edge of the last bottom partially to bend the marginal portions of the upper materials about the last corner preliminarily to clamping the heel band 24 against the sides of the shoe upper and wiping the margin of the upper materials about the entire heel end of the last.
The pressing devices I 2 and I4 are next brought into action by operating a knee pad (not shown) at the front of the machine which actuates mechanism described in Letters Patent No. 1,417,493 for causing the plunger 58 to move to the right (Fig. 1) and hence to operate connections between it and the pressing devices I2 and I4 to cause the latter to swing toward the shoe about the center of the stud I24 as an axis. This movement of the pressing devices I2 and I4 results in the pressing members I02 and I64 first being brought into engagement with the heel band 24 and then the springs II2 being compressed sufficiently to exert such pressure upon the pressing members I42 and IE4 as to cause them to be compressed and expanded widthwise into contact with each other whereby they, like the pressing members of the abutment I6, also present a continuous pressing surface to that area of the heel band upon which they act. It is apparent that the bushings IIEI can be so positioned by a preliminary adjustment that when the pressing devices I2 and 14 are in their pressing relation, the pressure of the pressing members I02 and I04 against the heel band can be made either uniform or graduated in accordance with the requirements of the work in hand. For example, it is usually desirable to apply greater pressure to the side of the upper adjacent to the bottom of the shoe than elsewhere and as the pressing members I82 can easily be made to exert more pressure than the pressing members I44 it is apparent that the illustrated construction lends itself readily to these requirements.
Ordinarily it is desirable, in operating a machine of the type disclosed herein, that the pressing devices I2 and I4 shall apply their pressure to the heel band progressively from the area acted upon by the abutment 16 toward the forward ends of the heel band. To this end, the check nuts I I4 are to be adjusted on the rods I It so that the pressing members I 42 and I64 extending from the abutment 16 toward the forward ends of the heel band are brought into play in succession as the pressing devices I2 and I4 are moved into their pressing relation.
After the heel band 24 has been pressed against the upper so as to make it conform to the shape of the last in the above-described manner, the operator then, in accordance with usual lasting procedure, operates the Wipers 26 several times back and forth across the marginal portion of the shoe bottom and then drives a row of tacks into the bottomof the heel end of the shoe in order to hold the upper materials in their lasted position. The pressing devices 12 and 14 are then separated from each other, and the holder 22 is moved away from the shoe support 44 to facilitate the substitution of a shoe to be lasted for that already operated upon.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:
1. ma lasting machine, a support for a last, and means for pressing a shoe upper on-said last into conformity to the contour thereof, said support and pressing means being relatively movable into and out of pressing relation, said pressing means comprising a plurality of pressing mornbers arranged in series extending horizontally from one side of the last to the other about the heel end, the ends of said members being directed toward the last and being expansible into contact with one another in response to upper shaping pressure exerted thereagainst by the last.
2. In a lasting machine, a support for a last, and means for pressing a shoe upper on said last into conformity to the contour thereof, said support and pressing means being movable relatively to each other into pressing relation, said press ing means comprising a plurality of pressing members paired heightwise of the last and arranged in series extending horizontally about the heel end of the last from one side to the other, the ends of said members being formed of yielding material and shaped and arranged to be expansible into contact with adjacent pressing members response to upper-shaping pressure exerted thereagainst by the last.
I 3. In a lasting machine, a'support for a last, and means for pressing an upper on said last into conformity to the side and end surfaces of the last, said means comprising pairs of pressing members arranged to act upon the upper from the edge of the shoe bottom to the top edge of the upper, said members of each pair being expansible heightwise into contact with each other in response to upper-shaping pressure thereby to provide a pressing surface which is continuous heightwise of the upper, said pairs also being arranged in a series extending along the sides of the last and around the end and being expansible into contact with each other thereby to afford a pressure surface extending continuously along the sides and around the end of the last.
4. In a lasting machine, a support for a last, and means for pressing a shoe upper on said last into conformity to the shape of the side and heel end surfaces of the last, said means comprising pressing members of yielding material in superimposed rows extending from one side of the last to the other about the heel end thereof, said members being expansible into contact with one another in response to upper shaping pressure exerted thereagainst by the last, the ends of said pressing members being directed toward the last to present a continuous pressing surface throughout the extent of the pressing members heightwise and longitudinally of the upper.
adjusting said yielding means individually whereby the pressures of said pressing members can be regulated,
6. In a lasting machine, a support for a last, and means for pressing a shoe upper on said last into conformity to the contour thereof, said support and pressing means being movable relatively to each other into pressing relation, said pressing means comprising a plurality of pressing members mounted for adjustment toward and away from the last and arranged in series extending about the heel end of the last from one side to the other, the ends of said pressing members being directed toward the last and being expansible into contact with one another in response to uppenshaping pressure exerted thereagainst by the last. i
'7. In a lasting machine, a support for a last, means forpressing a shoe upper on said last into conformity t the contour thereof, said support and means being movable relatively to each other into pressing relation, said pressing means comprising pressing members arranged in a plurality of series extending about the heel end of the last from one side to the other, said members, being directed endwise toward the last, and means for adjusting the positions of said pressing members individually in said pressing means.
8. In a lasting machine, a support for a last, and means for pressing a shoe upper on said last into conformity to the contour thereof, said support and pressing means being relatively movable into and out of pressing relation, said pressing meanscomprising a plurality of members arranged in series extending horizontally from one side of the last to the other about the heel end, the ends of said members being directed toward the last and carrying yielding pads shaped and arranged so as to be expanded into contact with one another in response to upper-shaping pressure exerted thereagainst by the last.
9. In a lasting machine, a support for a last, and means for'pressing a shoe upper on said last into conformity to the contour thereof, said support and pressing means being relatively movable into and out of pressing relation, said pressing means comprising plungers mounted for adjustment toward and away from the last, the ends of said plungers being formed of yielding material and shaped and arranged to be expanded into contact with each other in response to upper shaping pressure exerted thereagainst by the last.
10. Ina lasting machine, a support for a last, means for pressing a shoe upper on said last into conformity to the contour thereof, said support and pressing means being relatively movable into and out of pressing relation, said-pressing means comprising a plurality of plungers mounted for endwise adjustment toward and away from the last, said plungers being paired heightwise of the last and arranged in series extending horizontally about the last from one side to the other, each of said plungers carrying at its end adjacent to the last a yielding pad shaped and arrangedto be expanded into contact with an adjacent pad in response to upper shaping pressure exerted thereagainst by the last.
11. In a lasting machine, a support for a last, means for pressing a shoe upper on the last into conformity to the contour thereof, said means comprising a plurality of pressing members havingends formed of yielding material and directed toward the respective portions of the last es t th reto m ans e elat ve w i r "l6. In a lasting machin a supp t f r a last;
said support and pressing means toward each other into pressing relation thereby to cause said pressing means to act upon the upper and the yielding ends of said pressing members to be expanded into contact with each other, and means against the resistance of which said pressing members yield bodily as the support and pressing means are moved into their pressing relation.
' 12. In a lasting machine, a support for a last, and means for pressing a shoe upper on said last into conformity to the contour thereof, said means comprising a plurality of yieldingly mounted pressing members arranged in two horizontally extending series, the ends of said members being directed toward the heel end of the last and being expansible into contact with one another in response to upper-shaping pressure exerted thereagainst by the last.
13. In a lasting machine, a support for a last, means for pressing an upper on said last into conformity to the contour thereof, said means comprising a plurality of yieldingly mounted pressing members arranged in rows extending from one side of the last to the other about the heel end thereof, the ends of said members directed toward the last being formed of yielding material, and means for relatively moving said support and pressing means toward each other thereby to cause said members yieldingly to press the upper against the last and to be expanded into contact with one another.
14. In a lasting machine, a sup-port for a last, means for pressing an upper on the last into conformity to the contour thereof, said means ,comprising a plurality of pressing members mounted yieldingly to act upon portions of the upper opposite thereto, the ends of said pressing members carrying yielding pads, adjacent pads being in juxtaposition, and means for relatively moving said support and pressing means toward each other thereby to cause said members to act on the respective portions of the upper opposite thereto and to be expanded into contact with one another.
15. In a lasting machine, a support for a last, and means for pressing a shoe upper on said last into conformity to the shape of the side and heel end surfaces of the last, said means comp-rising a plurality of devices movable laterally of the last and having pressing members mounted therein for movement relatively to each other in response to pressure exerted thereagainst from the upper, the ends of said members being directed toward the last and expansible into contact with each other in response to said pressure exerted thereagainst? and means for pressing a shoe upper on said last into conformity to the shape of the side and the end surfaces of the last, said means comprising pressing devices mounted for movement toward and away from the support, each device having yieldably mounted therein a plurality of pressing members the ends of which are directed toward the last and carry yielding pads which are expansible into contact with each other in response to upper-shaping pressure exerted thereagainst by the last.
17. In a lasting machine, a support for a last, means for pressing a shoe upper on said last into conformity to the shape of the side and heel end surfaces of the last, said means comprising press.-
' ing devices mounted at opposite sides of the last for movement toward and away therefrom, each of said pressing devices carrying a plurality of to each other in response to upper-shaping pres.- sure exerted thereagainst by the last, yielding means associated with each of said pressing members against the resistance of which said members are relatively movable, and means for adjusting said yielding means individually whereby the yielding pressure of any of said members can be regulated with respect to that of the other members.
18. In a lasting machine, a support for anupper shaping form, pressing members of yielding material the ends of which are directed toward an end of the form and are shaped to press the end portion of an upper on said form into conformity to the shape thereof, said pressing members also being mounted for adjustment in directions substantially normal to the end surface of the form opposite thereto, and means for pressing the upper into conformity to the sides of the form having a plurality of yielding members paired heightwise of the form and disposed in series extending longitudinally of the form so as to act upon the side portions of the upper extending from the area at the end thereof acted upon by said first-mentioned pressing members toward the waist portion of the upper.
19. In a lasting machine, a support for an upper-shaping form, means for pressing an upper on said form into conformity to the shape of the side and end surfaces of the form, said means comprising a device having a pressing member disposed opposite to the extreme end portion of the form and a pressing member at each side of said first-mentioned pressing member mounted for adjustment in directions substantially normal to the surface of the form opposite thereto, and a pressing device at each side of said form having a plurality of pressing members arranged to act upon the side portions of the upper extending from the area at the end thereof acted upon by the first-mentioned device toward the waist portion of the upper.
20. In a lasting machine, a support for an upper-shaping form, means for pressing an upper on said form into conformity to the shape of the side and end surfaces of the form, said means comprising a device having pressing members mounted for adjustment relatively to each other in different directions normal to the surface of the end portion of the form opposite thereto,
and a pressing device at each side of said form having a plurality of pressing members paired heightwise of the form and disposed in series extending longitudinally of the form, said members being adapted to be deformed into conformity to the shape of the form and expanded into contact with one another in response to uppershaping pressure imparted by the form.
21. In a lasting machine, a support for a last, means for pressing the heel end of a shoe upper on said last into conformity to the end thereof comprising. a pressing device having fixed and yieldingly mounted members adapted and arranged to operate upon the back seam area of the upper, a pressing member at each side of said fixed member mounted for adjustment toward and away from the last in directions substantially normal to the portion of the surface of the last opposite thereto, and a pressing device at each side of the last constructed and arranged to exert pressure against portions of the upper extending from the area acted upon by said firstmentioned device along the sides of the heel end of the last.
22. In a lasting machine, a support for a last,
means for pressing the heel end of a shoe upper on said last into conformity to the shape of the end thereof comprising a pressing device opposite to the heel end of the last and mounted for adjustment longitudinally thereof, said device comprising a plurality of pressing members mounted for adjustment toward and away from the last in different directions substantially nor-- mal to the portion of the last opposite thereto and a yieldingly mounted pressing member adapted and arranged to operate upon the back seam area of the upper, and pressing devices mounted for movement widthwise of the last to cause pressure to be exerted against portions of the upper extending from the area acted upon by said first-mentioned device along the sides of the heel end of the last.
23. In a lasting machine, a support for a last, means for pressing the heel end of a shoe upper on said last into conformity to the end thereof comprising fixed and yieldingly mounted pads and a pad at each side of said fixed pad mounted for adjustment toward and away from the last, and pressing devices mounted for movement widthwise of the last to exert pressure against portions of the upper extending from the area acted upon by said pads along the sides of the heel end of the last. 7
24. In a lasting machine, a support for an upper-shaping form, means for pressing an upper on said form into conformity to the shape of the side and end surfaces of the form, said means comprising a pressing device mounted for adjustment longitudinally of the form and having fixedly mounted thereon opposite to the heel end of the form a yielding pad, a yielding pad at each side of said first-mentioned pad and mounted for adjustment in directions substantially normal to the surface of. the form upon which it acts, and a pressing device at each side of said form having a plurality of pressing members arranged to act upon the side portions of the upper extending toward the waist portion thereof from the area acted upon bysaid first-mentioned pressing device. a
25. In a lasting machine, a support for a last, means for pressing a shoe upper on said last into conformity to the shape thereof, said support and pressing means being movable toward each other into pressing relation, said pressing means comprising a pressing device having an upper and a lower pressing member opposite to the back seam area of the shoe upper, the latter of which pressing members is. arranged to yield in response to pressure imparted by the last until pressure is also received by the former of said pressing members, said pressing device also com prising a pressing member at each side of said upper pressing member and mounted for adjustment normal to the surface of the last opposite thereto, and a pressing device at each side of said form having pressing members paired heightwise of the form and arranged in series extending when in pressing position fro-m the area at the end of the upper acted upon by said first-mentioned pressing device toward the waist portion thereof.
26. In a lasting machine, a support for a last, means for pressing an upper on said last into conformity to the shape thereof comprising a pressing device opposite to an end of the last and a pressing device at each side thereof, said last and pressing devices being relatively movable toward each other into pressing relation, said pressing devices having a plurality of pressing the end of the upper toward the waist portion at each side thereof arranged to act upon the portion of the upper contiguous to the edge of the shoe bottom, said pressing devices also having a row of pressing members paired heightwise .with the adjacent members of said first-mentioned series arranged to act upon the area of the upper contiguous to the top edge thereof, all of said pressing members being adapted to be deformed when in their pressing positions into conformity to the shape of the respective portions of the last opposite thereto and to be expanded into contact with one another thereby to present a unifled pressing surface to the upper throughout the area acted upon by said members.
27. In a lasting machine, a support for a last, a flexible member for conforming a shoe upper to an end and adjacent side portions of the last, means for pressing said flexible member against the upper comprising a plurality of pressing members arranged in series extending horizontally from one side of the last to the other about the heel end, the ends of said members being directed toward the last and being formed of yielding material, and means for moving said support and pressing means toward each other thereby to cause said pressing members to press said flexible member against the upper and to cause the ends of the flexible members to be expanded into contact with one another thereby to present a continuous pressing surface to said flexible member,
28. In a lasting machine, a support for a last, a flexible member for conforming a shoe upper to the heel end and adjacent side portions of the last, and means for pressing said flexible member against the upper comprising pressing members of yielding material disposed in rows extending from one side of the last to the other about the heel end thereof, said members being deformable into conformity to the shape of the portion members arranged in a series extending about of said flexible member opposite thereto and expafisible into contact with one another inre sponse to pressure exerted thereagainst by said flexible member.
29. In a lasting machine, a support for a last, a flexible member for conforming a shoe upper to the heel end and adjacent side portions of the last, means for pressing said flexible member against the upper comprising a plurality of pressing members arranged in series extending horizontally about the heel end of the last from one side to the other, yielding means associated with each of said pressing members against the resistance of which said members are relatively movable, and means for adjusting said yielding means individually whereby the pressure of said members against said flexible member can be rendered uniform.
30. In a lasting machine, a support for a last, a heel band for conforming a shoe upper to the heel portion of the last, means for pressing said heel band against the upper comprising a plurality of plungers the ends of which directed toward the heel band are formed of yielding material, yielding means associated with each of said plungers against the resistance of which they are relatively movable in response to pressure exerted by the heel band, and means for adjusting said yielding means individually whereby the pressures of said plungers against the heel band can be rendered uniform,
31. In a lasting machine, a support for a last, a heel band for conforming a shoe upper to the heel'end of the last, and means for pressing the heel band against the upper comprising a plurality of pressing members arranged in rows extending horizontally from one side of the last to the other about the heel end, the ends of said pressing members carrying yielding pads arranged and adapted to be expanded into contact with one another in response to pressure exerted against them by the heel band.
32. In a lasting machine, a support for a last, a heel band for embracing the heel end of an upper on the last, and means for pressing said heel band against the upper comprising a plurality of pressing members arranged in rows one of which is arranged to act upon the portion of the heel band opposite to the portion of the upper contiguous to the edge of the shoe bottom, the pressing members in another of said rows being mounted and arranged to press against the heel band from the area acted upon by said first mentioned row of pressing members toward the top edge of the heel band, each of said pressing members being adapted to be deformed into conformity to the shape of the portions of the heel band opposite thereto and to be expanded into contact with the adjacent pressing members in response to the pressure of the heel band thereagainst.
33. In a lasting machine, a support for an upper-shaping form, a heel band for embracing the heel end of an upper on the form, means for pressing said heel band against the upper comprising a device having pressing members mounted' for adjustment relatively to each other in different directions normal to the surface of the end portion of the form opposite thereto, and a pressing device at each side of said form having a plurality of members paired heightwise of the form and disposed in series extending longitudinally thereof, said members being adapted to be deformed into conformity tothe shape of the portions of the heel band upon which they act in response to pressure imparted by the heel band.
34. In a lasting machine, a support for a last, a heel band for embracing the heel end of an upper on said last, means for pressing the heel end of the heel band against the upper comprising fixed and yieldingly mounted pads disposed oppoband from the area acted upon by said pads along the sides of the heel end of the last.
35. In a lasting machine, a flexible member for conforming a shoe upper to the heel portion of a last, means for pressing said flexible member against the upper comp-rising a pressing device at each side of said last having plungers arranged in a series of pairs extending along the sides of the last toward the extreme heel end, the ends of said plungers being directed toward the last and carrying yielding pads which are expansible into contact with each other in response to pressure of the flexible member thereagainst thereby to afford a continuous support for the latter, and a pressing device for acting upon that area of said flexible member between said pads at the end of the last comprising a yielding pad mounted for adjustment longitudinally of the last and a yielding pad at each side thereof mounted for adjustment in directions substantially normal to the surface of the last opposite thereto.
36. In a lasting machine, a support for a last, wipers for wiping the margin of the heel end of an upper on said last inwardly over the bottom thereof, means for pressing said upper into conformity to the shape of the heel end of the last comprising a device arranged to position the last with'respect to the field of action of said wipers having a pressing member disposed opposite to the extreme end portion of the last and a pressing member at each side of said first-mentioned pressing member mounted for adjustment in directions substantially normal to the surface of the last opposite thereto, and a pressing device at each side of said last having a plurality of pressing members arranged to act upon the side portions of the upper extending from the area thereof acted upon by the first-mentioned device toward the waist portion of the upper.
37. In a lasting machine, a support for a last, wipers for wiping the margin of the heel end of an upper on said last inwardly over the bottom thereof, means for pressing the heel end of the upper into conformity to the end thereof comprising a pressing device having fixed and yieldingly mounted members adapted and arranged to operate upon the back seam area of the upper and to position the last longitudinally thereof with respect to the field of action of said wipers, a pressing member at each side of said fixed member mounted for adjustment toward and away from the last in a direction substantially normal to the portion of the surface of the last 40 device along the sides of the heel end of the last.
38'. In a lasting machine, a support for a last, wipers for wiping the margin of the heel end of an upper on said last inwardly over the bottom thereof, means for pressing the heel end of the upper into conformity to the shape of the last andfor positioning the latter with respect to the field of action of the wipers comprising a pressing device opposite to the heel end of the last and mounted for adjustment longitudinally thereof,
said device comprising a plurality of pressing members mounted for adjustment relatively to each other toward and away from the portion of the last adjacent to the edge of the bottom in different directions substantially normal to the respective portions of the last opposite thereto,
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433266A (en) * 1944-06-14 1947-12-23 Compo Shoe Machinery Corp Shoe upper shaping and smoothing machine
US3037222A (en) * 1960-06-07 1962-06-05 Kamborian Flexible shoe conformer
US3060468A (en) * 1960-08-17 1962-10-30 Kamborian Shoe conforming apparatus
US4660242A (en) * 1986-03-24 1987-04-28 International Shoe Machine Corporation Activator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433266A (en) * 1944-06-14 1947-12-23 Compo Shoe Machinery Corp Shoe upper shaping and smoothing machine
US3037222A (en) * 1960-06-07 1962-06-05 Kamborian Flexible shoe conformer
US3060468A (en) * 1960-08-17 1962-10-30 Kamborian Shoe conforming apparatus
US4660242A (en) * 1986-03-24 1987-04-28 International Shoe Machine Corporation Activator

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