US2168568A - Sewing machine - Google Patents

Sewing machine Download PDF

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Publication number
US2168568A
US2168568A US150728A US15072837A US2168568A US 2168568 A US2168568 A US 2168568A US 150728 A US150728 A US 150728A US 15072837 A US15072837 A US 15072837A US 2168568 A US2168568 A US 2168568A
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Prior art keywords
needle
thread
loop
work
welt
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US150728A
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English (en)
Inventor
Gouldbourn Joseph
Kestell Thomas Aubrey
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United Shoe Machinery Corp
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United Shoe Machinery Corp
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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
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2303/00—Applied objects or articles
    • D05D2303/02—Tape

Definitions

  • concerned cording to the present invention includes a with curved hook needle chain-stitch sewing mathread-deflector consisting of a finger which lies ChneS OI Sewing the uppers and WelllS Of bOOtS 01 somewhat close to that face of the work which shoes to lips or ribs of insoles secured on the the needle first penetrates in its work piercing bottoms of lasts within the uppers.
  • the thread-deflecting finger holds the thread the non-positive manner in which the feeding loop in its deflected position substantially until member acts on the work tend to produce the rethe needle has once more commenced to pierce sult that the stitch-es are not drawn so tightly the work, after the work has been fed forward against the work around the toe portion as at a stitch length, for the formation of the next other parts of the shoe, this tendency being parstitch, it actually bowing the loop still more as ticularly marked on shoes which have sharply the needle advances towards the work, and then pointed toes.
  • Another feature of the invention is to provide a welt sewing machine with thread handling instrumentalities well suited for operation at a higher speed than has hitherto been usual.
  • Figure 1 is a right hand side elevation of a machine embodying the invention
  • Figure 2 is a chart indicating the relative times in the machine cycle when the movements of some of the parts of the illustrated embodiment commence and end
  • Figure 3 is a right hand side elevation of a part of a thread deecting mechanism and a Welt pressing member of the said machine
  • Figure 4 is a detail view of the same parts as shown in Figure 3, when viewed in the direction indicated by the arrow in Figure 3
  • Figure 5 is a sectional view on the line 5--5 of Figure 4
  • Figure 6 is a View in right hand side elevation, and partly in section, of the looper mechanism of the machine
  • Figure 7 is a view in right hand side elevation of the thread finger mechanism of the machine
  • Figure S is a front elevation of part of said thread finger mechanism
  • Figure 9 is a plan View illustrating the general relation of the needle, thread deilector, looper, thread linger, welt guide and channel guide of the machine at one particular stage in a machine cycle
  • the illustrated machine includes a curved hooked needle I which moves forwardly in passing through the welt, upper and insole lip and a feed point or awl 2 which is moved rearwardly to dig into the insole in the inner channel formed therein and is then moved towards the left to feed the shoe.
  • the needle I and feed point 2 and their operating mechanisms are substantially the same, except as hereinafter described, as those disclosed in the patents above referred to.
  • the machine also includes a channel guide 3, a thread finger 5, a looper "I, and welt guide 9 similar to and operating towards and from the work in the same manner as disclosed in Patent No. 1,108,560.
  • is actuated during the loop drawing or retracting stroke of the needle to engage the right hand sides of the lengths of thread extending through the work between the needle and the work so as to deflect the thread in the direction of work feed.
  • the deflector has formed on it a stem I5 from which the deflector extends upwardly and rearwardly at an angle of about 45 degrees to the horizontal.
  • the deflector is moved on parallel linkage in the line of feed to 'deflect the needle loop, and is rocked slightly towards and away from the seam and axially of the stem I5 to engage and disengage the threads at the proper time.
  • the stem I5 is secured in a tube or sleeve Il (see Figure 4), by a screw I9, which tube is slidingly mounted, for movement axially thereof, in a guiding member 2
  • 'I has formed on it a flat face 25 which engages a flat face Z'I on the guiding member 2
  • the arm 23 has pivotally connected to it at 29, just at the left of the stem I5, the forward ends of a pair of parallel links 3
  • is pivoted at its left hand end at 4
  • the cam lever 35 is pivoted on a horizontal shaft 53 extending laterally of the machine and secured in the machine frame and has a rearwardly and upwardly extending arm 55 which at its upper end carries a cam roll 5'!
  • the arm 63 of the bell-crank lever 45 extends from the hub of the lever rearwardly and upwardly and has pivotally connected to its upper end the right hand end of a link 65 which extends towards the left and at its left hand end is pivoted on a ball-ended stud adjustably secured in a curved slot 61 formed in the forward end of one arm 69 of cam lever 1
  • extends upwardly and rearwardly and carries a cam roll 11 which enters a cam groove formed in the peripheral face of a cam 19 on the cam shaft 6I of the machine.
  • Ihe slot in the welt guide carrier 85 is substantially concentric to the axis of the shaft 53 on which the cam lever 35 is pivoted when the welt guide is in its forward position so that when the deflector is moved up and down about the axis on which its cam lever 35 swings, the deflector Il is not moved up and down in the guidlng member 2
  • the thread finger 5 which cooperates with the looper hereinafter more fully described in laying the thread in the needle barb and which, therefore, may be assumed to be similar in purpose to that referred to as l1 in Patent No. 1,108,560 is moved during its thread pulling and giving up movements to and fro laterally of the machine instead of rearwardly and forwardly, as is usual in sewing machines with which the invention is particularly concerned, and also dips into the channel of the insole.
  • the thread finger (see Figs. '7 and 8) has a lower forked end 81 for engaging the thread which, when the thread is being laid in the needle barb or hook, moves from left to right of the machine and slightly rearwardly (i. e.
  • the thread finger extends upwardly and forwardly and then slightly downwardly towards the right.
  • the stem 89 is inclined upwardly and forwardly at an angle of about thirty degrees to the horizontal when the machine is viewed from the side (Fig. '1) and is inclined upwardly and to the right at an angle of about sixty-five degrees to the horizontal when the machine is viewed from the front (Fig. 8).
  • the stem 89 of the thread finger passes upwardly through a bearing 9
  • has secured on it a short arm 93 which extends rearwardly from the stem and is 4pivotally connected at one end to the left hand end of a link 95.
  • the link 95 extends from its left hand end towards the right and its right hand end is pivotally connected to the lower end of one arm 91 of a cam lever by a stud 99 secured in a slot in the arm 91.
  • the arm 91 of the cam lever extends upwardly from its lower end and the hub of the cam lever is secured on a shaft
  • 01 of the cam lever extends upwardly and has rotatably mounted on its upper end a cam roll
  • the lower forked end 81 of the finger Owing to the inclination of the stem 89 of the thread Vfinger 5 the lower forked end 81 of the finger, as it is moved from left to right to assist in laying the thread in the needle hook, swings downwardly and slightly rearwardly about the stern.
  • the forked end of the finger engages the thread extending from the' work to the looper 1 and carries the thread behind the needle, they looper 1 then acting to carry the thread in front of the needle to lay the thread in the hook of the latter.
  • This direction of movement of the lower end of the thread linger prevents the thread finger from engaging the channel lip during its movement and since the tension exerted by the thread finger on the thread extending from the last formed needle hole to the looper 1 is in a direction more or less parallel to the channel lip, there is little, if any, tendency for the channel lip to be forced towards the edge of the insole by the pull on the thread.
  • the looper carries a length of thread in front of the needle towards the right and the thread finger carries a length of thread behind the needle towards the right, thus forming a loop of thread which passes round the left hand side of the needle, and is engaged by the hook of the needle as the needle moves back through the work.
  • the looper 1 moves in passing the thread around the'needle it, therefore, moves first forwardly and then towards the right across the front of the needle and, later returns along the same path without having completely passed around the needle.
  • the lower thread guiding end of the looper 1 is formed on a slide
  • the guideway in the arm extends upwardly and forwardly at an angle of about 45 degrees 'tothe Wardly extending arm horizontal so that the looper can move in the same direction as the point of the needle while laying the thread in the needle hook.
  • I3 At the forward side of the slide
  • the looper lever H1 is actuated forwardly and rearwardly and left and right to lay the thread in the needle hook in the same manner as in the patent referred to, through suitable connections to the cam followers
  • 1 As the lever I
  • the arrangement is such that as the looper 1 moves forwardly and toward the right it also moves somewhat downwardly, this downward movement being in addil tion to that given the looper by reason of the slight downward movement of the looper lever I
  • Means is also provided in the present machine for placing a tension on the welt during the formation of each stitch to prevent the welt from being drawn lengthwise relatively to the shoe by the thread during the setting of the stitches.
  • This means includes a presser member I3 pivoted on the welt guide 9 (Figs. l, 3 and 4), having a for- I 3
  • the presser member I3 is pivoted to the welt guide on a horizontal pivot
  • the movements of the needle are indicated at A, the in and out movements of the feed point at B, the feeding movements of the feed point at B, the movements of the channel guide at C, the movements of the thread finger at D, the movements of the looper from lel't to right at E, the movements of the looper forwardly and rearwardly at E', the movements of the take-up at F, the movements of the welt guide at G, the movements of the thread deilector forwardly and rearwardly at H, and the movements of the thread deflector from left to right at H.
  • the needle I occupies substantially its rearmost and retracted position
  • 51 of usual form occupies its rearmost position along the shank of the needle
  • the feed point 2 is projecting into the work and has moved about half way towards the left along a feeding movement
  • the channel guide 3 will be pressing firmly against the work and will have moved along the feed line with the feed point.
  • the thread finger 5 which cooperates with the looper 1 to lay the thread around the needle at that time occupies its left hand position out of engagement with the thread extending from the work to the looper and the looper occupies its most rearward and leftward position at the left hand side of the needle.
  • the thread take-up device occupies a lowered position in which it lies relatively close to the work.
  • the welt guide 9 which at a chosen time in the machine cycle is locked against movement, is unlocked in the stopped position of the machine and occupies a rearward and upward position.
  • the thread deflector II when the machine is in the stopped position, occupies a position in which it has moved towards the left almost as far as it can across the plane of the needle in deflecting and exerting a tension on the last needle loop and occupies almost the highest position it reaches in applying tension on the loop.
  • the needle commences to advance towards the work when the main shaft of the machine has rotated through about 50 degrees from its stopped position and the thread nger, looper, take-up, and thread delector all remain substantially stationary during this portion of the cycle, the welt guide and the thread deflector advancing somewhat when the mainshaft has rotated through some 30 degrees to 40 degrees.
  • the advancing movement of the needle continues until the main shaft has rotated through about 100 degrees from its stopped position and in the interval which occurs while the main shaft is rotating through this further 50 degrees, the thread nger 5, looper 1 and welt guide 9 still remains stationary while the take-up rises to impart a stitch setting tension to the previous stitch.
  • the deflector By the time the main shaft has rotated through this angle the needle will have commenced to pierce the work and the fact that the deflector retains its engagement with the thread loop until this time ensures that the loop of thread will be supported against falling off the needle shank as the needle advances to pierce the work.
  • the deilector having moved out of engagement with the thread by the time the main shaft has rotated through about 120 degrees, commences to move idly across towards the right, below the needle, it actually continuing this movement until the shaft has rotated through about 190 degrees.
  • the needle actually reaches its full advanced position indicated in Figure 9 with its hooked end projecting through the work when the main shaft has rotated some 110 degrees and dwells in that position until the main shaft has rotated through some 200 degrees.
  • the take-up completes the setting of the previous stitch when the main shaft has rotated some 130 degrees.
  • the thread finger 5 commences to move across towards the right, more or less parallel to the direction of work feed, between the needle and the inner face of the insole lip. The thread finger actually comes into engagement with the thread when the main shaft has rotated through about 140 degrees.
  • the thread finger concludes its movement towards the right in the path indicated at X in Figure 9, having urged ⁇ the thread behind and against the left hand side of the needle, when the main shaft has rotated through some 180 degrees and at approximately the same time the ,looper starts to move towards the right from a position in which it then lies in front of and slightly to the left of the needle.
  • the thread finger dwells in its right hand position until the main shaft has rotated through some 220 degrees and during the time it dwells in that position, the looper continues its movement towards the right in the path indicated at Y in Figure 6 and wraps the thread around the forward side of the needle so that when the latter retires, its barb Will engage the thread to draw a loop rearwardly through the work.
  • the thread deector which is then idle in a lowered and rearward position at the right hand end of its travel, commences to swing forwardly and upwardly, towards the position indicated in Figure 10 but slightly to the right of that position, ready to engage the needle loop, the forwardly and upwardly bent right hand end of the defiector then lying close by the right hand side of the needle shank.
  • the deector reaches an appropriate forward and raised position, still more or less at the right hand extremity of its movement, when the main shaft has rotated through some 250 degrees and by this time the point of the retiring ⁇ needle will have moved just suiciently reardegrees,by which time the needle will have reached its fully retracted position, indicated in Figure l1, after which it immediately starts to advance slowly once more, the deflector will have moved sufficiently far over towards the left to produce an appreciable bowing or deflection in the needle loop and after this time the deflector both continues to move towards the left, during the time the feeding of the work takes place, and is moved upwardly, towards the position indicated in Figure 13, and forwardly slightly so as to exert an upward and forward tension on the loop as the needle moves towards the work again to prevent the loop from falling downwardly off the needle.
  • the deflector actually retains the thread loop in its deflected condition until the needle once more commences to pierce the work, as indicated in Figure 13, after which it immediately retires out of engagement with the thread.
  • the deflector will no longer be engaging the loop and the needle will have penetrated, completely through the work, as indicated in Figure 14.
  • the tension exerted on the thread passing through the looper and the work and around the needle by the take-up will, therefore, tighten the thread loop around the needle shank and will consequently pull the looper end of the previous stitch loop through which the needle passes along the surface of the work.
  • the deector acts in the manner described to bow the needle loop, it exerts a tension on that limb of the previous loop which passes through the next to last needle hole and which extends upwardly through the next to last needle hole and around the needle so that it assists the take-up in setting the stitch.
  • the fact that the deflector exerts a tension on this limb causes the looped end of the previous loop to be pulled somewhat towards the left, i. e., towards the next to last needle hole. Therefore when the deflector retires from engagement with the thread, the interengaging portions of the two loops will remain on the surface of the work at a position between the last needle hole and the previous needle hole, as indicated in Figure 14.
  • the tension acts to draw the interengaging portions of the two loops along the surface of the work towards the needle about which the last loop passes, and causes the last loop to slide through the previous loop.
  • the previous loop is drawn towards the needle until it lies more or less in line with the last needle hole and that portion of the insole lip lying between the last needle hole and the next to last needle hole is compressed lengthwise thereof by reason of the position which the interengaging portions of the two loops occupy on the surface of the work when the stitch setting tension is applied to the thread.
  • the needle While the work is being fed, the needle is out of the work moving slowly forward from its most rearward position, the looper remains practically stationary in its rearward position to the left of the needle, the thread finger also is stationary to the left of the needle, the welt guide 9 is moved upwardly and rearwardly out of engagement with the work to facilitate the feed of the latter, it actually moving downwardly and forwardly again to rest on the work just after the work feed has concluded, and the thread defiector l I moves towards the left and upwardly and rearwardly somewhat so as to maintain the thread loop in its deflected or bowed condition during the work feed, thus exerting some upward and rearward lifting action on the loop.
  • the feed point digs into the work substantially when the main shaft has rotated through some 260 degrees and remains in its work penetrating position until the main shaft has rotated through 60 degrees in the next cycle of the machine.
  • the feed point will remain in the work throughout the whole of the time the deflector is acting to deflect the thread towards the left and will, therefore, afford effective support to the work against being moved through the machine by the deflector.
  • the welt presser member i3 which acts to press the welt against the lower portion of the welt guide 9 is, by reason of its mounting on the welt guide and its connection at its rear end to the pawl
  • the presser is lowered against the welt when the welt guide is moved forwardly at the conclusion of feed. If the guide should not then engage the welt by reason of being stopped by the work before it reaches its original position, the projection ISS acts as the needle is approaching the forward extremity of its advancing movement to release the pawl from the ratchet teeth and allow the presser to swing against the welt.
  • a chainstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through a previously formed loop of thread, a loop delector, and means for actuating the deflector before the needle has reached the end of its loop drawing stroke to deflect both sides of the loop carried by the needle between the needle and the previously formed loop in the direction of work feed'.
  • a chainstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw Aa loop of thread through the work and through a previously formed loop of thread, a loop deflector, and means for actuating the deflector in the direction of work feed to deflect the loop carried by the needle between the needle and the previously formed loop and to hold the loop deiiected until the needle engages the work during the formation of a new stitch.
  • a chainstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through a previously formed loop of thread, a loop deector, and means for actuating the deflector in a rectangular path, along one portion of which the thread carried by the needle between the needle and-the previously formed loop is engaged by the delector, and along another portion of which the ⁇ thread is disengaged from the delector.
  • a chainstitch inseam. shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through a previously formed loop of thread, a loop deflector arranged to be actuated in a rectangular path, along one portion of which the thread carried by the needle between the needle and the previously formed loop is engaged by the delector and along another portion of which the thread is disengaged from the deflector, and means for actuating the deflector to hold the thread until the needle has substantially reached the work in its advancing stroke.
  • a chainstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through a previously formed loop of thread, a loop deflector, means for actuating the deilector to deiiect both sides of the loop carried by the needle between the needle and the previously formed loop, and parallel motion linkage on which the deector is movable along the direction of work feed during deilection of the needle loop.
  • a chainstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop o-f thread through the work and through a previously formed loop of thread, a loop deflector, means for actuating the deflector in the direction of work feed to deflect both sides of the loop carried by the needle between the needle and the previously formed loop, and means for actuating the deflector towards and away from the seam to engage and disengage the needle loop.
  • a chainstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through a previouslyformed loop of thread, a loop deector, means for actuating the deilector to deflect both sides of the loop carried by the needle between the needle and the previously formed loop, parallel motion linkage on which the deiiector is movable along the direction of Work feed during deflection of the needle loop, and means for moving the parallel motion linkage bodily to actuate the deilector towards and away from engagement with the needle loop.
  • a chainstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through a previously formed loop of thread, a take-up, a loop deflector, and means for actuating the deiiector to deflect both sides of the loop carrieclby the needle between the needle and the previously formed loop and while thread is being given up by the take-up.
  • a chainstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through a previously formed loop of thread, a loop deflector, and means for actuating the deflector to deflect both sides of the loop carried by the needle between the needle and the previously formed loop, said means beginning its operative movement before the needle has reached the end of its loop having, in combination, stitch forming mechanism including a curved hook needle operating to ⁇ draw a loop of thread through the work and through a previously formed loop of thread, and a loop deector arranged when actuated to deect both sides of the loop carried by the needle between the needle and the work, and means for actuating the needle to draw thread from the previously formed loop while the deector is acting to deflect the last formed loop.
  • a chainstitch inseam shoe sewing machine having, in combination, stitch forming mechanism including a 'curved hook needle operating to draw a loop of thread through the work and through a previously formed loop of thread, a loop deflector and means for actuating the deector in the direction of work feed to deflect both sides of the loop between the needle and the previously formed loop during the loop drawing stroke of the needle and for actuating the deflector away from the seam during the next succeeding advancing stroke of the needle.
  • a chainstitch inseam sewing machine for forming an inseam Within the channel of an insole having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through a previously formed loop of thread, and a thread finger acting in a direction opposite to that in which the Work is fed to measure thread Cil from the needle loop and to dip into the channel of the insole in measuring the thread.
  • a chanstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through a previously formed loop of thread, a loop defiector, means for actuating the deector in the direction of work feed to deect the loop carried by the needle between the needle and the previously formed loop, and a thread linger acting in a direction opposite to the direction of feed to measure thread for the needle loop.
  • a chanstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through a previously formed loop of thread, a welt guide movable towards and from the work, a loop deflector, and means for actuating the deflector including a connection operatively connected to the Welt guide.
  • a chanstitch inseam-shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through a previously formed loop of thread, a welt guide movable towards and from the work, a loop deflector arranged to deflect the thread carried by the needle between the needle and the work in the direction of work feed, and means on the welt guide for gripping and releasing the welt during each sewing cycle.
  • a chanstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through .a previously formed loop of thread, a welt guide movable towards and from the work, a loop deflector arranged to deflect the thread carried by the needle between the needle and the work in the direction of work feed, and means for actuating the welt guide to grip the welt while a stitch is being set and to release the welt during work feed.
  • a chanstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the work and through a previously formed loop of thread, a welt guide movable towards and from the work, a presser member, yielding means for actuating the presser member to grip the welt, and a pawl actuated by movement of the welt guide away from the work to release the presser member from the welt.
  • a chanstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, mechanism operating to cause the needle to draw a loop of thread through the work and through a previously formed loop of thread, a welt guide movable towards and from the work, a presser member for gripping the welt to prevent its movement through the welt guide, yielding means for actuating the presser member to grip the welt, a pawl for holding the presser member from gripping relation with the welt, and means including the needle actuating mechanism for moving the pawl into inoperative position to permit the presser member again to grip the welt.
  • stitch forming devices including a curved hook needle, mechanism operating to cause the needle to draw a loop of thread through the work and through a previously formed loop of thread, a welt guide movable towards and from the work, a presser member for gripping the welt to prevent its movement through the welt guide, yielding means for actuating the presser member to grip the welt, a
  • a chanstitch inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle operating to draw a loop of thread through the Work and through a previously formed loop of thread, a looper, mechanism for actuating the looper to lay the thread in the needle hook, a slide on which the looper is mounted, and means for actuating the slide in the direction of movement of the point of the needle as the thread is laid in the needle hook comprising a link pivotally connected at one end to the looper and at the other end to a stationary part of the machine.
  • a chanstitch sewing machine having, in combination, a hooked needle operating to draw a loop of thread through the work and through a previously formed loop of thread, a thread deflector arranged to displace, along the surface of the work, those portions of the needle loop and the previous loop which are then in engagement with each other, a stitch setting device for drawing the inter-engaging loop portions along the surface of the work towards their original positions during the setting of a stitch, and a thread nger acting to draw off, for successive stitches,

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US150728A 1936-08-27 1937-06-28 Sewing machine Expired - Lifetime US2168568A (en)

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GB23495/36A GB480753A (en) 1936-08-27 1936-08-27 Improvements in or relating to sewing machines

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DE (1) DE688670C (fr)
FR (1) FR825865A (fr)
GB (1) GB480753A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20080444A1 (it) * 2008-07-12 2010-01-13 Mafram Macchine S R L Bsistema per la movimentazione di un dispositivo a gancio rotante in una macchina da cucire
ITBO20080443A1 (it) * 2008-07-12 2010-01-13 Mafram Macchine S R L Braccio oscillante per il supporto di un dispositito a gancio rotante in una macchina da cucire
CN107075763A (zh) * 2014-08-04 2017-08-18 恩坦华产品有限责任公司 用于缝制车辆内装部件的装置和方法以及由该方法形成的部件
US10364520B2 (en) 2011-07-08 2019-07-30 Inteva Products, Llc Apparatus for stitching vehicle interior components

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20080444A1 (it) * 2008-07-12 2010-01-13 Mafram Macchine S R L Bsistema per la movimentazione di un dispositivo a gancio rotante in una macchina da cucire
ITBO20080443A1 (it) * 2008-07-12 2010-01-13 Mafram Macchine S R L Braccio oscillante per il supporto di un dispositito a gancio rotante in una macchina da cucire
US10364520B2 (en) 2011-07-08 2019-07-30 Inteva Products, Llc Apparatus for stitching vehicle interior components
CN107075763A (zh) * 2014-08-04 2017-08-18 恩坦华产品有限责任公司 用于缝制车辆内装部件的装置和方法以及由该方法形成的部件

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Publication number Publication date
FR825865A (fr) 1938-03-16
GB480753A (en) 1938-02-28
DE688670C (de) 1940-02-28

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