US2198391A - Shoe sewing machine - Google Patents

Shoe sewing machine Download PDF

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Publication number
US2198391A
US2198391A US200644A US20064438A US2198391A US 2198391 A US2198391 A US 2198391A US 200644 A US200644 A US 200644A US 20064438 A US20064438 A US 20064438A US 2198391 A US2198391 A US 2198391A
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Prior art keywords
work
sole
presser foot
horn
shoe
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US200644A
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English (en)
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Quinn Edward
Alfred R Morrill
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Individual
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Individual
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Priority to US200644A priority Critical patent/US2198391A/en
Priority to GB10731/39A priority patent/GB527636A/en
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B15/00—Machines for sewing leather goods
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B15/00—Machines for sewing leather goods
    • D05B15/02—Shoe sewing machines
    • D05B15/04—Shoe sewing machines for lock-stitch work

Definitions

  • the present invention relates to shoe sewing machines, and more particularly to machines adapted for sewing the upper to the sole of a shoe unsupported on a last.
  • the invention is herein disclosed as embodied in a straight needle over arm sewing machine of the general type having stitch forming devices which include a work piercing awl and a straight needle movable to feed the work, and devices arranged for guiding and for supporting the work in position-to cause the needle to enter andemerge from the same side of the work; which include a work support adapted to enter a stitch receiving channel formed in the sole, a presserfoot to bear against the upper at the edge of the sole, an upper guard, and a horn arranged to extend within the shoe and bear against the inner surface of the sole at the sewing point.
  • the illustrated machine is similar in many respects to that illustrated in the patent to Edward Quinn No. 2,142,966, dated January 3, 1939, and
  • the needle is arranged to enter and to emerge from the same side of the work
  • a novel and "improved arrangement of the work supporting and guiding devices to provide a more adequate support of the shoe at the sewing point to insure the proper location and formation of bear against the inner surface of the sole adjacent the edge thereof at the sewing point
  • a novel and improved construction and arrangement of the horn actuating mechanism to insure the proper positioning of the work during the stitch forming cycle, and to maintain a substantial guiding'control of the shoe during the work feed.
  • certain features of the in vention relate to improvements in the construction and mode of operation of the actuating mechanism for the horn whereby the horn is yieldingly engaged against the inner surface of the sole and is locked in this work engaging position to provide a positive'lateral support of the shoe by the horn against the thrust of the presser foot, awl and needle, and is thereafter moved .a predetermined small distance away from its work engaging position, the extent of this relieving action being gauged to maintain a substan-'- tial guiding relation of the horn with the shoe during the work feed.
  • Figure 1 is a view in left side elevation, partly in section, of a straight needle sewing machine embodying in a preferred form the several features of applicants invention, only so much of the machine being illustrated as believed necessary to illustrate the connection of the present invention therewith;
  • Figure 2 is a. sectional view,
  • Figure 8 is a detail sectional view in left side elevation
  • Figure 9 is an enlarged detail view in left side elevation of certain of the parts shown in Figure 1, illustrating more particularly the positions of the horn and upper guard duringthe work feed;
  • the machine disclosed in the drawings as embodying in a preferredform the several features of the present invention is a wax thread chain stitch machine of.the overarm type having a a work support comprised by two relatively movable channel engaging members 20 and 22, and
  • the needle is mounted on a swinging support 34 for movements in the line of feed to impart a positive step-bystep feeding movement of the work.
  • the present machine is particularly constructed and arranged for sewing a line of stitches around the margin or a turn shoe or slipper, which is preferably assembled in a reverse position with the upper and lining attached thereto, cemented or otherwise temporarily secured to a shoulder formed in any'edge portion of the sole.
  • the shoe or slipper is placed in the machine with the sole in a sharply inclined position, so that the needle at its work piercing stroke will enter the stitch receiving channel in. the shoe sole, and passing.
  • a. stationary guard plate 38' is mounted beneath the work for engagementwith the shoe sole, and is adjustable to determine accurately the angle at which the needle and awl pass through the work.
  • the machine is also provided with a shoe supporting horn 40 arranged to extend within the shoe and bear against the inner surface of the sole at the sewing point and an upper guard member 42 which is movable in a vertical plane into and out of engagement with the shoe to correctly position the upper or upper and lining in advance of the operation of the presser foot and stitch forming devices during the progress of the sewing opera;
  • the construction and arrangement of the shoe supporting and feeding devices is such as to permit of a fully automatic operation of the machine to transfer the point of operation about the shoe without the necessity of assistance or'attention on the part of the operator.
  • the stitch forming and work-feeding devices of the machine including specifically the needle, awl, looper and presser foot, are constructed and arranged to have the usual timing of these parts,
  • the needle 24 is mounted on the upper end of the needle bar 46 to reciprocate within the swinging bracket 34, and is actuated from a forwardly extending rock shaft 48 in the base. 50 through lever 52 and connecting link 54. The awl is driven from a.
  • the presser foot 26 of the present machine is a presser foot 26 of the present machine.
  • a vertically movable presser foot bar 62 held yieldingly in engagement with the work by means of a leaf spring 64 (see Figs. 1- and 2) which engages against'the upper end of the presser foot :bar.
  • the presser foot bar is positively lifted to permit the feeding of the work through connections which include a forwardly extending rock shaft -56 supported'in the overarm 32, and provided at its forward end with a presser foot lifting lever 68.
  • the rocking movement of the lever 68 is rendered operative to lift the presser foot through a self-adjusting locking device which in cludes a loose nut 10 screw-threaded to the presser foot bar, a sleeve member I2 loosely supported on the bar and arranged to engage upon both sides of the nut 10, and a clamping lever 14 supported by the sleeve member 12,-when the clamping lever 14 is engaged by the presser Toot lifting lever 68 to clamp the nut I0 in locliing engagement with the presser foot bar 62, and thereafter to raise the presser foot 26 out of engagement with the work.
  • an improved presser foot locking device has been del I vised which cooperates in a new and more eflicient manner to provide a firm support for the work, and at the same time to permitthe work to be lifted slightly prior to the beginning of the feed movement of the needle, so that the work may be freed from engagement with the channel supports 28 and 22.
  • a locking pawl and ratchet type lock for locking the presser foot in engagement with the' work in combination with connections which are directly controlled by movement of the presser foot lifting lever 88, and may be very accurately timed to release the presser foot lock slightly in advance of the lifting of the presser foot, and
  • Applicants improved .presser foot lock cornprises a slide 88 secured at its lower end to a pin 82 mounted in a bracket 84 which is rigidly secured to move with the presser foot bar 62 (see Fig. 2)
  • the slide 88 is provided with a series of ratchet teeth 88 which are adapted to be engaged by a locking pawl 88 mounted to turn on a stationary pin 98 carried on the overarm 32 of the machine
  • a small compression spring ,92 seated in a recess 84 is arranged for engagement with the pawl 88 to maintain the pawl in looking engagement with the ratchet teeth 86. The operation of the pawl 88 iscontrolled from.
  • the pres-' ser foot lifting lever 88 through connections which include a laterally extending arm 96 secured to turn with the pawl 88,'and having at its outer end an adjustable stop screw 88 adapted for engagement with an abutment I88 carried on the hub of the presser foot lifting lever 68.
  • a laterally extending arm 96 secured to turn with the pawl 88,'and having at its outer end an adjustable stop screw 88 adapted for engagement with an abutment I88 carried on the hub of the presser foot lifting lever 68.
  • pawl 88 is permitted to move under the pressure of its spring 82 into locking engagement with the ratchet teeth 88.
  • a pawl release lever I84 is loosely supported on the supporting pin 82 for movement into and out of engagement with the pawl 88. At its lower end presser foot 26 out of engagement with the work.
  • the horn 48 of applicants improved machine comprises a U-shaped member which is pivotally mounted to move bodily toward and away from its work engaging position in a'direction inclined'downwardly and forwardly from the sewing point, and is further supported to swing freely about a horizontal axis approximately nor-' mal to the surface of the shoe sole in the machine, and passing through the sewing point.
  • the horn 48 is loosely supported on a pivot pin I I8 carried on a horn supporting lever II2 which is in turn loosely mounted on a stationary pivot pin II4 on the overarm 32.
  • the pivot pin "8 is supported for vertical adjustment in a slot II8 --formed in a bracket I I8 forming part of the lever I I2.
  • the bracket I I8 is slidably mounted for ad-' justment in the line of feed in the lever II2, being'clamped in adjusted position by means of a set screw I28.
  • the actuating connections for the horn 48 comprise a vertically movable control bar I22 which is slidably supported in a casing I24 attached to the forward end of the overarm 32, and is connected .at its lower end to the horn lever II2 by means of a link I28.
  • the control bar I 22 is moved yieldingly in a downward direction to engage the horn 48 against the work by means of a compression spring I28 which is supported within a cylindrical chamber .I38
  • the actuating connections above described including the spring actuated control bar I22, link I26, and horn supporting lever II2 are constructed and arranged to secure a substantially irreversible action to lock the horn 48 in work engaging position.
  • the supporting pins 138 and I3! for the link I28 mounted respectively on the control'bar I22 and on the lever II2 are so arranged that downward movement of the horn control bar I22 will cause the link I to approach a substantially straight line position with relation to the direction of thrust of the horn about its pivot II4 away from the work, this position, as best shown in Fig. 1, being at a sharp angle to the direction of movement of the control bar I22 under the pressure of its spring I20.
  • a novel and improved mechanismv is provided actuated from the usual awl motion of the machine, for relieving the pressure of the horn upon the work during the work feed, this mechanism being constructed and arranged to move the horn a small predetermined distance from its work engaging position, .which is sufficient only to free the work, while at the same time maintaining a substantial guiding relation of the horn with the shoe during the feed.
  • Applicants improved arrangement of the horn mechanism in which the horn is moved a uniform small distance from its engaging position regardless of variations in work '4' thickness has the particular advantage that the horn may be positioned sufiiciently close to the inner edge of the shoe "sole during the work feed, to provide a substantial lateral guiding support for the shoe which will insure a proper positioning of the presser foot with relation to the sole edge, and a correct location of the successive stitches of the seam.
  • actuating connections for the horn are;
  • the horn is moved away from the work prior tothe starting of the work feed, and preferably slightly'in advance of. the liftting of the presser foot, and is again engaged with the work before the presser foot.
  • This timing of thehorn motion to cause the horn to engage against and support theinner edge of the sole at the sewing point prior to the reengagement of the presser foot with the work has the specific advantage of preventing lateral displacement of the sole-edge due to the action of the presser foot, which might otherwise result when shoes constructed of light weight or inferior stock are being operated upon.
  • the relieving and engaging movements are imparted to the horn through connections which are actuated from the awl bar 60, and are particularly arranged to secure the predetermined small movement of the horn from thework engaging position and the desired timing of said relieving and 6 engaging movements with relation to the advancing and retracting stroke of the awl bar.
  • the mechanism for lifting the horn comprises a nipping block I40 which is loosely mounted on the horn controlv bar I22, and is normally forced if) downwardly by means of two compression springs I42 and I44 engaging the opposite sides thereof against a stationary supporting surface I46 formed in the casing I24.
  • the actuating connections for the nipping block include a lever 10 arm I40,which is formed on a rock shaft I50, and is arranged to engage against the rear side of the nipping block I40.
  • a second lever arm I52 adjustably secured to the rock shaft I50 is arranged to be engaged by an actuating block I54 adjustablysecured to the awl bar 80, these parts being so arranged that the block I54 during the upward movement of the awl bar willengage with a cammed face of the lever arm I52, and rock the shaft 150 and lever arm I48 through a predetermined angle, thus causing the nipping block I40 to be tipped into gripping engagement with and to lift the horn control bar I22 a predetermined small amount.
  • connections above described including the nipping block I40 for relieving the horn engaging pressure upon the work are constructed and arranged to cause the horn to be disengaged from the work at the desired point in the up-stroke of the awl bar 60, and to permit the re-engagement of the horn with the work also at the desired point in the downstroke of the awl bar 50, the timing of these parts being such as to cause the horn to engage against and support the inner edge of the sole at the sewing point prior to the re-engagement of the presser foot with the work.
  • a novel and improved upper guard 42 is provided with a novel and improved upper guard 42, as best shown inFigs. 3 and 9 of the drawings.
  • the upper guard is formed on the lower end of a slide member I55 which is movable in a vertical plane in a guideway I into and out of engagement with the work.
  • the work engaging portion of the upper guard 42 comprises aflat plate,
  • the edge I64 of the upper guard 42 being arranged to bear against the upper to the rear of the presser foot, and extendingin the direction of feed a substantial distance in advance of the sewing point. That' portion of the edge I54 which is opposite the sewing point, is provided with a slight recess I55, as best shown in Fig. 3, to provide adequate clearance for the needle. .
  • a flanged lining is also provided on the leading side of the upper guard 42, a flanged lining from the operation of the stitch forming devices.
  • Applicants improved upper guard is particularly adapted for use in operating upon light weight shoes and slippers in which the upper or upper and lining have been previously cemented or otherwise attached to the edge of the shoe sole.
  • the upper guard operates in a most efficient manner to properly position the upper and lining away from the sole edge to permit an unobstructed operation of the presser foot and sewing devices, without at the same time causing any undue lat- :eral strains to be placed on the work which might result in tearing the upper loose from the sole edge or in a lateral placement or breaking down of the sole edge.
  • the upper guard 42 is arranged to be moved vertically a predetermined small distance away from the work during each feeding operation of the shoe.
  • the timing of the upper guard, horn and presser foot motions is such as to cause the upper guard to engage against the work in advance of the horn 46 and presser foot 26, and to cause the upper guard to be disengaged from the work only after both the horn and the presser foot have started their retracting movements.
  • the upper ,guard 42 is moved yieldingly into engagement tained during a portion of each stitch forming and work feeding cycle of the machine, by means of an actuating lever I 16 loosely supported to turn on the stationary pivot I I4.
  • the actuating lever I16 is moved in a clockwise direction'to raise the upper guard 42 from ,the work, by means of anib I89 formed on a collar I90 on the awl bar 60.
  • the nib I89 engages against a cammed surface.
  • I92 formed in the forward edge of the actuating lever I16 to move the lever to its raised position, the lever then being supported in this position by con-- tinued movement of the nib I89 onto a flattened surface I84 of the lever I16.
  • the treadle' actuated presser foot lifting 'lever III2 may be rendered operative also to retract the horn 46 and upper-guard 42 to free the Work from the machine
  • the lateral extension IIIBof the lever I62 above-described is arranged upon lifting the lever I62 to engage beneath'a lug I 96 secured to the horn control bar I22 to raise the bar against the pressure of the spring I28.
  • a lug 260 formed on the lower end of the horn control bar I22 engages beneath, an offset upper end 202 of the slide support I56 for the upper guard 42, thus raising the upper guard away from the work.
  • a machine for sewing the upper tothe sole of a shoe while unsupported on a last having, in combination, stitch forming and work feeding devices including a needle, devices arranged to support the work in position to cause the needle to enter and emerge from the same side of thework comprising a work support to enter a stitch receiving channeL, a presser foot to bear against the upper at the edge of the sole, a horn arranged to extend within the shoe and bear against the inner surface of the sole at the sewing point, and means for actuating the horn to retract the horn from its work engaging position to aposition with relation to the surface of the work at which the engaging pressure upon the sole is relieved, and at which a substantial guiding relation is maintained between the work and the horn during the work feed.
  • stitch forming and work feeding devices including a needle, devices arranged to support the work in position to cause the needle to enter and emerge from the same side of thework comprising a work support to enter a stitch receiving channeL, a presser foot to bear against the upper at the edge
  • a machine for sewing the upper to the sole of a shoe while unsupported on a last having, in combination, stitch forming and work feeding devices including a needle, devices arranged to support the work directly against the thrust and withdrawing stroke of the needle in position to cause the needle to enter and emerge from the ,same side of the work, a horn extending within the shoe arranged to bear against the inner surface of the sole adjacent the edge thereof at the sewing point, and thereby to cooperate with the work supporting devices to position the shoe laterally in the path of needle movement, and means for actuating the horn to retract the horn a predetermined uniform distance from the surface of the work regardless of work thickness, said dis .tance being gauged to maintain a substantial guiding relation between the horn and the work during the work feed.
  • a machine for sewing the upper to the sole of a shoe while unsupported on a last having, in combination, stitch forming devices including a needle, devices arranged to support the work in position to cause the needle to enter and emerge, from the same side of the work comprising a worksupport to enter a stitch receiving channel, a presser foot to bear against the upper at the edge of the sole, a horn arranged to extend within the shoe and bear against the inner surface of the sole at the sewing point, and means for yield- I ingly engaging the horn against the work, and for locking the horn in work engaging position.
  • stitch forming devices including a needle, devices arranged to support the work in position to cause the needle to enter and emerge, from the same side of the work comprising a worksupport to enter a stitch receiving channel, a presser foot to bear against the upper at the edge of the sole, a horn arranged to extend within the shoe and bear against the inner surface of the sole at the sewing point, and means for yield- I ingly engaging the horn against the work, and for
  • a machine for sewing" the upper to the sole of a shoe while unsupported on a last having, in combination, stitch forming and work feeding devices including a needle, devices arranged to support the work in position to cause the needle to enter and emerge from the same side of the combination, stitch forming and work feeding a horn arranged to extend within the shoe and devices including a needle, devices arranged to support the work directly against the thrust and withdrawing stroke of the needle in, position to cause the needle to enter and emerge from, the same side of the work comprising a work support to enter a stitch receiving channel, a presser foot to bear against the upper at the edge of the sole, a work supporting and guiding element arranged to bear against the inner surface of the sole at the sewing point, and means for actuating said work supporting and guiding element to engage said element against the shoe sole and to retract said element a predetermined uniform distance from said engaging position regardless of the thickness of the work, said distance being 'gaugedto maintain a substantial guiding relation between the work supporting and guiding element and-the work during the work feed
  • stitch forming and-work feeding devices including a needle, devices arranged to support the work directly against the thrust and withdrawing stroke of the needle in position to cause the needle to enter and. emerge from the same side of the work, a horn extending within 1 the shoe arranged to bear against the inner surface of the sole adjacent the edge thereof at the sewing point, and thereby to cooperate with the work supporting devices to position the shoe laterally in the path of needle movement, and means for actuating the horn to engage the horn against the shoe sole and to retract the horn a predetermined uniform distance from said engaging po sition regardless of the thickness of the work to relieve the pressure of the horn on the sole' dur-' 8.
  • a machinefor sewing the upper to the sole of a shoe while unsupported on a last having, in combination, stitch forming and work feeding devices including a needle, devices arranged to support the. work directly against the thrust and withdrawing stroke of the needle in a position to cause the needleto enter and emerge from the same side of the work, a horn extending within the shoe arranged to bear against the inner surface of the sole adjacent the edge thereof at the sewing point, and thereby to position the shoe laterally in the path of needle movement, 1 means for actuating the bum including means for yieldingly moving the horn against the shoe sole, and means for retracting the horn a predetermined uniform distance from the shoe en- 6 gaging position regardless of work thickness to relieve the pressure of the horn on the sole during a portion of each stitch forming and work feeding cycle of the machine.
  • a machine for sewing the upper to the sole 10 of a shoe while unsupported on a last having, in combination, stitch forming devices including a needle, devices arranged to support the work directly against the thrust and withdrawing stroke of theneedle in a position to cause the 5 needle to enter and emerge from the same side of the work, a horn extending within the shoe arranged to bear against the inner surface of the sole adjacent the edge thereof at the sewing point, and thereby to cooperate with the work supporting devices to positionthe shoe'laterally in the path of needle movement, and means for actuating the horn including means for yieldingly engaging the horn against the work, an actuating member having a predetermined throw, 9,5 and a connection actuated thereby to operatively connect the horn to said actuating member to move the horn a predetermined uniform distance from the work engaging position regardless of the thickness of the work.
  • a machine for sewing the upper to the sole of a shoe while unsupported on a last hav-' ing, in combination, stitch forming and work feeding devices including a needle, devices arranged to support the work directly against the thrust and withdrawing stroke of the needle in a position to cause the needle to enter and emerge from the same side of the work, ahorn extending within the shoe arranged to bear against the inner surface of the sole adjacent o the edge thereof at the sewing, point, and thereby to cooperate with the work supporting devices to position the shoe laterally in the path of needle movement, means for yieldingly engaging the horn against the work including a connection 5 having a substantially irreversible action to lock the horn against the work, and means acting on said connection to relieve the pressure of the horn on the sole during a portion of each stitch forming and work feeding cycle of, the machine.
  • a machine for sewing the upper to the sole of a shoe while unsupported on .a last having, in combination, stitch forming and work feeding devices including a needle, devices arranged to support the work directly against the '55 thrust and withdrawing stroke of the needle in a position to cause the needle to enter and emerge from the same side of the work, a horn extending within the shoe arranged to bear against the inner surface of the sole adjacent the on edge thereof atthe sewing point, and thereby .to cooperate with the work supporting devices to position the shoe laterally in the path of .needle movement, means for yieldingly engaging the horn against the work including a connection having a substantially irreversible action to ice the horn against the work, and means acting on said connection to move the horn away fromthe work a predetermined amount duringv a portion of each stitch forming and work feeding cycle of the machine.
  • stitch forming and work feeding devices including a needle, devices arranged to 1 locking the horn inwork engaging position, andsupport the work in position to cause the needle to enter and emerge from the same side of the work comprising a work support to enter a stitch receiving channel formed in the sole, a presser foot to bear against the upper at the edge of the sole, a horn extending within the shoe to bear against the inner surface of the sole at the sewing point and thereby to position the sole edge laterally in the path of needle movement, means for actuating the presser foot and horn to release the work during the work feed, and thereafter to clamp the work, said-actuating means including means acting to move the horn into clamping position prior to the engagement of the presser foot with the work. l.
  • a machine for sewing the upper to the sole of a shoe while unsupportedpn a last having, in combination, stitch forming and work feeding devices including an awl having a work piercing and retracting movement, a needle, devices arranged to support the work in position to cause the needle to enter'and emerge from the same side of the work comprising a work support to enter a stitch receiving channel formed in the sole, a presser foot to bear against the upper at the edge of the sale, a horn extending within the shoe to bear against the inner surface of the sole at the sewing point and thereby to position the sole edge laterally in the path of needle movement, means for actuating the presser foot .to release the work during work feed, and means actuated by the retracting movement of the awl to move the horn a predetermined uniform distance from the work regardless of work thickness, and actuated by the work piercing movement of the awl to re-engage the born with the work prior to the engagement of the presser foot.
  • a machine for sewing the upper to the sole of a shoe while unsupported on a last having, in combination; stitch forming and work feeding devices including a work-piercing awl, a needle movable to feed "the work, devices arranged to support the work in position to cause the-needle to enter and emerge from the same side of the work comprising a work support to enter a stitch receiving channel formed in the sole, a presser foot-to bear against the upper at the edge of the sole, a horn arranged to extend within the shoe and-bear against the inner surface of the sole at the sewing point, means for actuating the presser foot to engage and disengage the-presser and arranged to force the upper against and loose machine, and means controlled by the retracting movement of the awl to disengage the horn from the work during the work feed, and by the workpiercing movement of the awl to re-engage the burn with the work prior to the engagement of 6 the presser foot.
  • stitch forming and work feeding devices including a work-
  • a machine for sewing the upper to the sole of a shoe while unsupported on a last having, in combination, stitch forming and work feeding devices including a work-piercing awl, a needle 10 movable to feed the work, devices arranged to support the work in position to cause the needle to enter and emerge from the same *side of the work comprising a work support to enter a stitch receiving channel formed in the sole, a presser 15 foot to bear against the upper at the edge of the sole, a horn arranged to extend within the shoe and bear against the inner surface of the sole at the sewing point, means for actuating the presser foot to engage and disengage the presser foot from the work during portions of each stitch forming and work feeding cycle of the machine, means for actuating the horn including means for yieldingly engaging the horn against the work, and means for retracting the horn a predetermined uniform distance from the work including a nipping block, a horn actuating lever arranged to engage therewith, and connections actuated by the awl motion
  • the combination of stitch forming and work feeding devices including a needle, devices arranged to support the worlrin position to cause the needle to enter and emerge from the same side of the work comprising a work support to enter the stitch receiving channel, a presser foot to bear against the upper at the edge of the sole, means for lifting the presser foot to release the work during the work feed, and an upper guard movable in a direction substantially normal to the sole edge toward and away from the work surface, and having work engaging surfaces arranged to force the upper.
  • the combination of stitch is forming and workfeeding devices including an awl having a work-piercing and retracting movement, a needle movable to feed the work, devices arranged to support the work in position to cause the needle to enter and emerge from the same side of the work comprising a work support to enter the stitch receiving channel, a presser foot ',1 to bear against the upper at the edge of the sole, means for lifting the presser foot to release the work during the work feed, an upper guard movable into and out of engagement with the shoe and having work engaging surfaces constructed and arranged to position the upper with relation by ,the retracting'movement of the-awl to move 10 the upper guard away from the work.
  • the combination ofstitch forming and work feeding devices including an 86 awlhaving a work-piercing and retracting movement, a needle movable to feed the work, devices -firranged to support the work in position to cause side-of the work comprising a work support to enter the stitch receiving channel, a presser foot to bear against the upper at the edge of the sole, means for lifting the presser foot to release the work during the work feed, an upper guard movable into and out of engagement with the shoe .8 and having work engaging surfaces constructed and arranged to position the upper with relation to the sole edge, and means comprising cam and a follower elements associated respectively with the upper guard and with the awl for raising the 40 upper guard to a predetermined position during the retracting movement of the awl.
  • the combination of stitch forming and work feeding devices including a needle, devices arranged to support the work in position to cause the needle to enter and emerge from the same side of the work comprising a work support to enter the stitch receiving channel, a
  • presser foot to bear against the upper at the edge of the sole
  • an upper guard movable in a single path into and out of engagement with the shoe, and having work engaging surfaces constructed and arranged to position the upper with relation 56 to the sole edge, a horn arranged to extend within the shoe and bear laterally against the inner surface of the sole at the sewing point, and means for actuating each of the upper guard presser foot and horn to release the work during the 00 work feed, and to re-engage the upper guard and horn with the work prior to the engagement of the presser foot.
  • the combination of stitch forming and work feeding devicesinwork in position to cause the needle to enter and emerge from the same side of the work comprising a work support to enter the stitch receiving channel formed in the sole, and a presser foot to bear against the upper at the edge of the sole.
  • devices arranged to supportthe 8 1 sin easel cycle, an upper guard having a work engaging surface arranged to bear against the upper on that side of the sewing point away from the sole edge, and extending in advance of the sewing point the line of feed, an upper engaging sur- I face extending upwardly and laterally for engagement with adjacent portions of the upper, and means for imparting a reciprocatory movement to the guard in a single path into and out of engagement with the shoe wherebysaid 'sur- 10 faces operate to force the upper against and loose portions thereof away from the sole edge prior to movement of the presser foot into clamping engagement withthe upper.
  • the combination of stitch formingand work feeding devices including a needle, devices arranged to support the work in position to cause the needle to enter and emerge from the same side of the work comprising a work support to enter the stitch receiving channel formed in the sole, and a presser foot to bear'against the upper at the edge of the-sole, I
  • an upper guard having a work engaging surface arranged to bear against the upper on that side of the sewing point away from the sole U edge and extending in advance of the sewing point, a second work engaging surface extending transversely across the line of feed in advance of thesewing point and including a depending portion arranged to extend downwardly over the sole edge, and a third upper engaging surface extending upwardly and laterally from the sewing point into engagementwith adjacent portions of the upper, and means for reciprocating the guard in a single path toward (1 and away from the sewing point to force the upper against and loose portions thereof away from the sole edge prior to movement of the,
  • the presser foot and saidyielding presser foot comprising a work support to enter the stitch receiving channel, a presser foot arranged to bear against the upper at the edge of the sole, means for pressing the presser foot yielding against the work, a presser foot locking device comprising a ratchet and locking pawl cooperating therewith, a presser foot lifting lever, a connection controlled by the movement of said lever to disengage the pawl from the ratchet, said connection having means for adjustment to cause the locking device to be released as the needle ap-- proaches the limit of its work piercing stroke and prior to the lifting of the presser foot by the lever, whereby the work is caused to move slightly away from the work support under the influence of the work piercing thrust of the needle against the presser foot and said yielding presser foot pressing means prior to the feeding of the work.
  • a machine for sewing the upper to the sole of a shoe in which the sole is formed with a stitch receiving channel having in combination, stitch forming and work feeding devices including a needle movable to feed the work, devices arranged to support the work in position to cause the needle to enter the stitch receiving channel and to emerge from the same side of the work, comprising a work support to enter the manually operable presser foot lifting lever to disconnect the locking pawl from the ratchet.
  • the combination of stitch forming and work feeding devices including a needle, devices arranged to support the work directly against the thrust and withdrawing stroke of the needle in a position to cause the needle to enter and emerge from the same side of the work including a work support to enter the stitch receiving channel, a presser foot movable toward and away from the shoe and arranged to bear against the upper at the edge of the sole, an upper guardmovable toward and away from the shoe, and having work engaging surfaces constructed and arranged to position the upper with relation to the sole edge, and means for actuating each of the upper guard and the presser foot to release the work during the work feed, and to re-engage the upper guard with the work prior to the engagement of the presser foot.
  • the combination of stitch forming and work feeding devices including a needle, devices arranged to support the work directly against the thrust and withdrawing stroke of the needle in a. position to'cause the needle to enter and emerge from the same side of the work comprising a work support to enter the stitch receiving channel formed in the sole, a presser foot movable toward andaway from the shoe and arranged to bear against the upper at the edge of the sole, an upper guard movable toward and away from the shoe in a direction substantially normal to the sole edge,
  • the combination of stitch forming and work feeding devices including a needle, devices arranged to support the work directly against the thrust and withdrawing stroke of theneedle in a position to cause the needle to enter and emerge from the same side of the work comprising a work support to enter the stitch receiving channel formed in the sole, a presser foot movable toward and away from the shoe and arranged to bear against the upper at the edge of the sole, an upper guard movable toward and away from the shoe, said upper guard having a work engaging surface arranged to bear against the upper at that side of the sewing point away from the sole edge and extending in advance of the sewing point, and a depending portion arrangedto extend downwardly over the sole edge in advance of the sewing point to clear loose portions of stock during thework feed, and means for actuating each of the presser foot and upper guard to release the work during the work feed and to re-engage the upper
  • the combination of stitch forming and work feeding devices including a needle, devices arranged to supportthe work in position to cause the needle to enter and emerge from the same side of the work comprising a work support to enter the stitch receiving channel, a presser foot movable toward and away from the work and arranged to bear against the upper at the edge of the sole, an upper guard movable toward and away from the work and having work engaging surfaces constructed and arranged to position the upper with relation to the sole edge, a horn arranged to extend within the shoe and bear laterally against the inner edge of the sole at the sewing point, and means for A actuating each of the upper guard, the presser foot and horn to release the work during the work feed.
  • a shoe sewing machine having, in combination, stitch forming and work feeding devices including a work support, a presser foot, and a work piercing element arranged to enter the side of the work opposite from the presser foot, actuating means for the presser foot including means for moving the presser foot yieldingly against the work and for raising the pressure foot to permit the feeding of the work, a presser foot lock operable to lock the presser foot against the work, and means operable as said work piercing element approaches the limit of its work piercing stroke and prior to the raising of the presser foot for the work feed to permit a slight upward movement of the work under the influence of the work piercing thrust oi. said element against the yielding resistance of the presser foot and said yielding presser foot pressing means prior to the work feed.
  • a shoe sewing machine having, in 'combination, stitch forming and work feeding devices including a work support, a presser foot movable toward and away from the work, a needle arranged to enter the side of the work opposite from the presser foot and to feed the work, actuating means for the presser foot including means for moving the presser foot yieldingly against the work, a presser foot locking device, a presser foot lifting device for raising the presser foot to permit the feeding of the work, and means for unlocking the presser foot as the needle approaches the limit of its work.
  • a shoe sewing machine having, in combination, stitch forming and work feeding devices including a hook needle, a work support,
  • a presser foot movable towardand away from cycle prior to the lifting of thepresser foot.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US200644A 1935-12-18 1938-04-07 Shoe sewing machine Expired - Lifetime US2198391A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US200644A US2198391A (en) 1935-12-18 1938-04-07 Shoe sewing machine
GB10731/39A GB527636A (en) 1935-12-18 1939-04-06 Improvements in or relating to sewing machines

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US488855XA 1935-12-18 1935-12-18
US527636XA 1938-04-07 1938-04-07
US200644A US2198391A (en) 1935-12-18 1938-04-07 Shoe sewing machine

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US2198391A true US2198391A (en) 1940-04-23

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US200644A Expired - Lifetime US2198391A (en) 1935-12-18 1938-04-07 Shoe sewing machine

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US (1) US2198391A (fr)
DE (1) DE687109C (fr)
FR (2) FR815173A (fr)
GB (2) GB488855A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034467B (de) * 1955-10-14 1958-07-17 Kochs Adler Ag Deckel fuer Saeulennaehmaschinen

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FR815173A (fr) 1937-07-07
GB488855A (en) 1938-07-14
GB527636A (en) 1940-10-14
FR50486E (fr) 1940-11-14
DE687109C (de) 1940-01-24

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