US3191560A - Attaching trimming strips to knitted articles - Google Patents

Description

June 29, 1965 N. MARFORIO 3,

ATTACHING TRIMMING STRIPS TO KNITTED ARTICLES Filed Jan. '22, 1963 12 Sheets-Sheet 1 Nerino Marforio,

ATTORNEY June 29, 1965 N. MARFoRlo ATTACHING TRIMMING STRIPS 1'0 KNITTED ARTICLES Filed Jan. 22, 1963 12 Sheets-Sheet 2 FIG. 3

INVENTOR Nerino Marforio ATTORNEY MUM June 29, 1965 N. MARFORIO 1,

ATTACHING'TRIMMING STRIPS T0 KNITTED ARTICLES Filed Jan. 22, 1963 12 Sheets-Sheet 3 INVENTOR Nerino Marforio ATTORNEY June 29, 1965 N. MARFORIO ATTACHING TRIMMING STRIPS TO KNITTED ARTICLES Filed Jan. 22, 1963 12 Sheets-Sheet 4 Mar-forao, W

ATTORNEY N. MARFORIO June 29, 1965 ATTACHING TRIMMING STRIPS TO KNITTED ARTICLES 12 Sheets-Sheet 5 Filed Jan. 22, 1965 FIG.

'ITORNEY Ne-rino Marforio FIG.12

June 29, 1965 N. MARFORIO 3,191,560

ATTACHING TRIMMING STRIPS TO KNITTED ARTICLES Filed Jan. 22, 1963 l2 Sheets$heet 6 I m MENTOR er-ino Marfori ATTORNEY L June 29, 1965 12 Sheets-Sheet 7 Filed Jan. 22, 1963 FIG.2O

FIG. 19

7 1 i 22 g b V Q Q a% Mk m m m m w F v\ 4 4 FIG. 23

Nerino Marforio- I ATTORNEY N. MARFORIO June 29, 1965 ATTACHING TRIMMING STRIPS T0 KNITTED ARTICLES 12 Sheets-Sheet 8 Filed Jan. 22, 1963 V I 0 F H M s MRZQ m X 2 J ,5 7 5 7 61(FIG.,27

FIG. 2a

INVENIOR Nerino Marforio, BYW

Z-EEEY mmcnme TRIMMING STRIPS T0 KNITTED ARTICLES Filed Jan. 22, 1963 June 29, 1965 MARFORIO 12 Sheets-Sheet 9 IN V E 1 OR erino Marforio W ATTORNEY June 29, 1965 N. MARFORIO 3,191,560

ATTACHING-TRIMMING-STRIPS TO KNITTED ARTICLES Filed Jan; 22, 1963 12 Sheets-Sheet 1o erino Mar-f0 10,

/ ATTORNEY June 29, 1965 N. MARFORIO 3,191,560

ATTACHING TRIMMING STRIPS TO KNITTED ARTICLES Filed Jan. 22, 1963 12 Sheets-Sheet ll F'IG.31

INVENTOR Nerino Marforio,

ATTORNEY ATTACHING TRIMMING STRIPS TO KNITTED ARTICLES N. MARFORIO June 29, 1965 12 Sheets-Sheet 12 Filed Jan. 22, 1963 Q fierino Marforio ATTORNEY United States Patent 3,191,560 ATTACHING TRIMMING STRIPS TO KNITTED ARTICLES Nerino Marforio, Milan, Italy, assignor to S.p.A. Virgmio Rimoldi & C., Milan, Italy Filed Jan. 22, 1963, Ser. No. 253,134 t Claims priority, application Italy, Jan. 27, 1962, 2,011/ 62 4 Claims. (Cl. 112-197) It is known that in finishing smarter knitted articles for outer Wear, the edges of the openings of such articles, such as the edges of the neck opening, the ends of sleeves, the lower edges of garments and the like are pro vided with special types of trimming strips or so-called collars which are likewise knitted to form two similar flaps superposed in part at their borders and joined to the edges of the above-mentioned articles.

In order to attach the trimming strips or collars to the edges of knitted articles for outer wear a linking operation is required and this operation is generally performed on a linking machine.

This method is slow and requires skilled workers which increases considerably the cost of manufacture of knitted articles for outer wear finished with trimming strips or collars of the above-mentioned type.

This invention obviates the above drawbacks and introduces a considerable simplification of the operations required for attaching trimming strips to the edges of knitted articles for outer wear at a much faster rate than possible by the use of linking machines. Moreover, the invention eliminates the need of skilled workers and provides a method, different than known methods, of attaching the trimming strips to the edges of knitted articles.

Another object of this invention is to adapt the known sewing machines for double-chain stitching to carry out the improved method.

According to this invention the improved method for attaching an outer Wear trimming strip split to form two similar flaps superposed in part at their borders and joined to the edge of a knitted article comprises the following steps:

(a) Folding over each flap of the tirimming strips in the direction of the other flap so that the flaps are superposed in part;

(b) Inserting between the resulting folds of the flaps the marginal edge portion of the knitted article;

(c) Pinching the marginal portion between the folds of the trimming strip;

(d) Connecting the marginal portion to the folds of the flaps by a double-chain stitch seam extending parallel with the length of the superposed zones of the abovementioned portions of the knitted article and trimming strip.

This invention moreover provides a machine adapted to effect a double-chain stitch, wherein, in order to use the machine for attaching to the edges of knitted articles for outer wear two-fold trimming strips the machine is provided with a guide for the trimming strip and the edge of the knitted article. The guide is arranged in proximity to the needle plate and bar of the machine and oriented in the direction of displacement of the work under the action of the work feed members on the machine during sewing. The guide is of Y-shape in cross section at least over a certain length from an end thereof disposed towards the needle plateand bar; to thereby define a conduit of a similar Y-shaped cross section, wherein the end portion of the diverging Y- branches or arms are folded over and have their extremities ending near the connecting zone of the diverging 3,191,560 Patented June 29, 1965 arms or branches and middle branch or arm of the Y.- The guide is supported in such a manner that its portion including the end portions of the diverging Y branches is intersected by the transverse plane of the machine in which the seam is formed, and is disposed at a height with respect to the working plane of the machine such that the end of one of the diverging Y branches is beneath the working plane.

Other characteristic features and advantages of this invention will be clearly understood from the appended description referring by way of example to embodiments shown on the accompanying drawings, wherein:

FIGURE 1 is a perspective view of a sewing machine adapted to perform a double-chain stitch seam, and adapted for carrying out the improved method according to the invention;

FIGURE 2 is a perspective view of the same machine, wherein the guide is shown in a titlted position suitable for introducing thereinto a trimming strip to be attached to the edge of a knitted article; 7

FIGURE 3 is a perspective view on an enlarged scale of a zone of the machine in which the guide, needle and feed members for the work are arranged;

FIGURE 4 is a perspective view on an enlarged scale of a guide for eifecting folding of a trimming strip;

' FIGURE 5 is an exploded view on an enlarged scale of members cooperating with the guide;

FIGURES 6 and 7 are a plan view and a front elevation view respectively, of a guide including the members shown in FIG. 5 and of the members supporting the guide in the machine frame;

FIGURE 8 is a view of a guide in the direction of an arrow A in FIGURE 4;

FIGURES 9 and 10 are sectional views on lines IX-- IX and X-X, respectively, of FIGURE 6 showing the guide only;

FIGURE 11 is a plan view of a plate for closing the machine frame from the top;

FIGURE 12 is a sectional View on line XII-XII of FIG. 11;

FIGURE 13 is a perspective view of a lid slidably mounted in the plate shown in FIGURE 11;

FIGURE 14 is a sectional view through the edge of a knitted article andthe two-fold border of the trimming strip, showing their mutual positions before introduction into a guide;

FIGURE 15 is a cross sectional view illustrating the mutual positions of the edge of a knitted article and border of a trimming strip after they have been sewn together;

FIGURE 16 is a sectional View on a highly enlarged scale along the seam section line XVIXVI in FIG- URE 15;

FIGURE 17 is a plan view on an enlarged scale of a needle plate on the machine;

FIGURES 18 to 20 are sectional views taken on line XVIIIXV III, XIXXIX and XXXX of FIGURE 17, respectively;

FIGURES 21 and 22 are a plan and a side view, respectively, of a feed dog unit for feed of the work being sewn;

FIGURE 23 is a sectional view taken on line XXIII- XXIH of FIG. 22;

FIG. 24 is a perspective view of the needle plate and cooperating feed dogs;

FIGURES 25, 26, 27 and 28 are views on an enlarged scale of a pressure device of the machine in side elevational and sectional views on lines XXVI-XXVI of FIG. 25, XXVlI-XXVII of FIG. 26 and in plan view, respectively;

FIGURE 29 is a perspective view of a sewing machine of a type similar to the machine shown in FIGURES l to 13, adapted to carry out the improved method by the use of means modified with respect to the means shown in FIGURES 1 to 13.

FIGURE 30 is a perspective view on an enlarged scale of a zone of the machine according toFIGURE 29, in which the edge of a knitted article and trimming strips are joined and sewn together;

FIGURE 31 is a perspective view on an enlarged scale of a detail of the machine shown in FIGURE 29;

FIGURE 32 is a perspective view on an enlarged scale of a guide employed in the machine shown in FIGURE 29 to fold the trimming strip;

FIGURE 33 is a view of the guide shown in FIGURE 32 and supportintg bell crank therefor on the side of the guide end opposite an end near the stitch-building region of the machine;

FIGURE 34 is a plan view of the guide;

FIGURE 35 is a view in the direction of the arrow F in FIGURE 33;

FIGURES 36, 37 and 38 are cross sectional views of the guide taken on lines XXXVIXXXVI, XXXVII XXXVII and XXXVIII-XXXVIII, respectively, in FIG- URE 34;

FIGURE 39 is a perspective view on an enlarged scale of a constructional detail of the machine shown in FIG- URE 29 in proximity to the guide;

FIGURE 40 is a perspective view on an enlarged scale of members cooperating'with the guide;

FIGURE 41 is a perspective view on an enlarged scale of an additional guide for the border of the' trimming strip opposite the border being attached to the knitted article. i

In the drawing corresponding parts are denoted by the same reference numerals throughout.

The machine shown in the drawings is of the arm type suitable for effecting a double-chain stitch. The frame B carries a hinged tiltable vertical cover K pivotally mounted on a rod A. The cover K extends parallel with the longitudinal middle plane of the machine and is arranged on a longitudinal side wall of the frame beneath a plate L closing the'frame from the top and serving as a working table for the machine. The cover K, together with the plate L closes access to the region of the frame at which the feed members for the work being sewn and the looper are arranged to cooperate in a well known manner. in effecting double-chain stitching. The machine is provided with a conventional needle bar C movable in a vertical direction and carrying a needle D. A bar E is provided disposed perpendicular and parallel with the needle bar and carrying a presser device H. The bar E is oifset from the needle bar D in the direction of the work feed, as described hereafter.

Threads F1 and F2 are supplied to the needle and a looper (not shown) respectively.

- The cover K is provided at one end with a bracket K having attached thereto by means of screws 1 a vertical strap 2 carrying a bellcrank 3. The top end of the bell crank is bent at right angles to form a plane 4 having attached, for example by welding thereto, a guide G for a trimming strip R and for the edge of the knitted article H which is to be provided with the trimming strip R. I

The bell crank is secured to the vertical strap 2 by means of a pair of screws 5. the shanks of which extend through a slot 6, FIGURE 4, cut in the end of the'bell crank 3 remote from the guide G. The slot 6 is of a length and width such as to permit displacement of the bell crank 3 in a vertical direction with respect to the strap 2 as well as an angular orientation thereof to the strap 2 Within an angle of a limited width.

The guide G, which is more clearly shown in FIGURES 3 to 10, is formed at its portion secured to the bracket 3, by-a metal plate bent in a U shape, the branches or arms 7 and 8 of which are situated above the plane 4 of the bell crank 3. The branches 7 and 8 and other members i of the guide which shall be described hereafter, are all symmetrically arranged with respect to a plane SS (FIGURES 8 and 10).

The side edges of the arms of the U-plate are stiffened by ribs N projecting outwardly and likewise U-shaped. The free ends of the arms of these ribs superposed on the branch 7 of the U-plate are interconnected by a cross rib N. 1

The end edges 7 and 8', respectively, FIGURE 4, of the arms 7 and 8 of the U-plate are each formed at their region extending between the guide end 9 and approximately the longitudinal center line of the latter, with extensions P, FIGURE 4. These extensions P are symmetrically arranged with respect to the plane SS, FI"'- URES 8 and 10, and are specially shaped. The extensions each include sections 10 diverging with respect to the abovementioned plane SS and inclined to the latter. These sections are followed with arcuated intermediate sections 12 ending by sections 13 converging in the direction of the plane SS. The ends of the sections I3 are interconnected near the plane SS by a bridge piece 14. The latter extends parallel with the bottom 15 of the U-plate, FIGURE 6, and is of a length preferably equalling about fir the length of the sections of the edges '7 and 8 carrying the extensions P, the edges 16 and 17 of the extensions are formed by consecutive sections variously inclined to the longitudinal middle plane of the guide perpendicular to the arms 7 and 8.

The bridge piece 14 has secured thereto through a rod 11 a plate 18 spaced from the inner faces of the diverging sections It} of the extensions P. The edges 18 and 18" of the plate 18 follow the edges 16 and 1-7 of the diverging sections, opposite the direction in which the needle bar is situated. The plate 18 is formed with two tongues 19 and 24} extending within clearances confined by the diverging and converging sections with respect to the plane SS of each of the extensions P. The tongues I? and 29 are spaced from the inner faces of the diverging and converging sections as Well as from the intermediate sections 12 and end by short sections extending beyond the guide and both inclined in the direction of the plane SS (FIGURES 4 and 8). The rod 1 1 securing the bridge piece .14 to the plate 18 extends a short length beyond the end of the latter opposite the end carrying the tongues 19 and '20. i

It will be seen that the configuration of the above described guide G is such as to form internally of its portion turned towards the needle bar C a Y-shaped conduit, the diverging branches of which have their bottom ends folded over in the direction of the plane of symmetry of the Y.

The clearance between the arms 7 and 8 of the guide G slidably receives a flattened end portion 22 bent, FIG. 5, at right angles to a rod 23, extending beyond the bottom 15 of the guide G and ending in a knob 23a. The rod 23 is slidably mounted in the longitudinal direction of the guide G in a through hole in a stud 24. The latter is situated at the end of a cross member 25 secured by means of screws 26 to the bottom of each of the stiffening ribs N on the guide G. The rod 23 carries two straps 27, 2S clamped to the rod by means of screws and arranged between the portion 22 of the rod and stud 24 and between the latter and the knob 23a, respectively. A spring 29, FIGURES 5 and 6, is interposed between the strap 28 and stud 24 and tends to move the rod 23 towards the guide bottom 15 by its portion 22. The width of this movement is determined by the position on the rod 23 of the strap '27. The strap 28 is so shaped on its end opposite the guide G as to form a tooth 28a which can be engaged by a small tooth 30a on a pivoted lever 30 mounted for oscillation about an axis perpendicular to the rod 23 in a fork fast with the stud 24. A spring 31 constantly urges the lever 30 towards its position in which the tooth 30a thereon is in the path of the tooth 28a on the strap 28. The position of the straps 27 and former portion 42a.

28 is of course determined according to the width of the trimming strip to be introduced into the guide. The structure just described permits easy release of the tooth 30a from the strap 28 by acting on the lever 30. The portion 22 of the rod 23 is moved towards the guide bottom and the rod portion 22 is withdrawn from the edge of the trimming strip. A cross slot 32 cut in the branch 7 of the U-plate on the guide a short distance from the cross rib N facilitates introduction into the guide of the trimming strip to be sewn.

The guide G is secured to the bell crank 3 in such manner that its plane of symmetry SS is at a small angle to the working plane L on the machine and is inclined in the direction of the transverse plane of the machine in which the needle bar is situated. Moreover, as will be seen from FIGURE 3, the bell crank is at a height such that the intermediate section 12 and a portion of the converging section 13 of the extension P of the arm 8 of the U-plate are situated beneath the edge 33 of an opening in the plate L, FIG. 3, but above a triangular plate 34 carried by the cover K. An edge 34a of the plate is juxtapositioned, in the normal position of the cover according to FIGURES l and 3, to an inclined end section 33a of the opening in the plate L, FIGS. 3 and 11, forming the working plane on the machine. The cover K has secured thereto by means of screws a bell crank 36 to which a lever 37 provided with a handle is securely fixed. By acting on the latter the cover K and guide G including its above described attachments can be moved from their operative position shown in FIGURES 1 and 3, in which the cover is retained by snap means (not shown), to a backwardly tilted position shown in FIG- URE 2, in which the trimming strip is introduced into the guide before star-ting the sewing process.

The edge of the guide G opposite the edge near which the rod 23 moves, is slightly spaced from the inclined edge 38 of the plate L, FIGURES 11 and 12. The edge 38 is cut away a certain distance from the needle bar C and is completed by a flap 39a bent downwardly on a plate 39 screwed to a flat cover 40 slidably mounted through a dove tail joint in the plate L, of which it conceals an opening cut for access to the machine members arranged in the frame.

The needle plate 42, FIGURES 17 to 20 and 24, which is fitted into a suitable opening in the plate L at the region beneath the needle bar C, is formed with a portion 42a and a reduced portion 42b extending parallel with the A slit 43 is cut in the portion 42a and has the needle D extending therethrough during stitch building. This portion 42a is moreover formedwith an inclined surface 42c facilitating feed of the work. The needle plate 42 is formed with longitudinal openings 44, 45, 46 and 47 for the feed dogs to extend therethrough, the movement of the dogs results in feed of the work being sewn.

The feed dog unit includes a main feed dog 48 provided with three sets of serrations 48a, 48b and 480, a small additional feed dog 49 secured to the main feed dog 48, and a differential feed dog 50, the serrations 50a in which are aligned with the serrations 48a in the main feed dog. The stroke of the dog 50, however, can be varied in known manner with respect to the stroke length of'the main feed dog. The additional feed dog 49 is formed with a small number of serrations 49a, preferably two in number, aligned with the serrations 48b in the main feed dog. The additional feed dog 49 is of approximately bell crank shape and is formed in its horizontal branch with a longitudinal opening 49b for the needle D of the machine to extend therethrough. This is necessary, inasmuch as its serrations should be on the opposite side of the needle D with respect to the serrations 48b in the main feed dog. This arrangement, which is useful in sewing knitted articles, is clearly visible in FIGURE 24 which shows the needle plate 42 and serrations in the various 6 feed dogs which are shown in their position near the end of their work feed stroke.

A presser device H is arranged above the needle plate 42 and is secured to the bar E (FIGS. 1 to 3 and 25 to 28). The presser device comprises a support 51 carrying a vise 52 which can be clamped by means of a screw 53 around the bar E. The support 51 carries a presser foot 54 in which a slit 55 is formed. The latter is in register with the slit 43 in the needle plate for the needle D to extend therethrough during stitching. The presser foot 54 is supported for oscillation by the support 51 through the interposition of a pivot 56. An auxiliary presser foot 57 of reduced width and increased length with respect to the foot 54 cooperates with the portion 42b of the needle plate. The auxiliary presser foot 57 is secured by means of a pin 58 and a plunger 59 axially movable in a seat in the support 51 and is pressed towards the needle plate by springs 60 and 61 hearing at one end on the end 'of the plunger 59 and in proximity to the raised tip 57a of the auxiliary presser foot, respectively, their other ends being secured to the support 51 by means of a screw 62. The auxiliary presser foot 57 is formed with a lateral perpendicular projection 57b forming guide surfaces for'the folds in the top flap R of the trimming strip, as hereafter described.

As mentioned above an object of this invention is to suit a double-chain stitch sewing machine to attach to the edges of knitted articles for outer wear trimming strips split at their border to be connected to the knitted article to form two separate flaps.

The operations carried out to this end on the above described machine will be better understood from the figures in the drawings.

It will be seen in FIGURES 4 and 14 that the flaps R and R" of the split border of the trimming strip R are initially rolled. In order to effect a joint of the type shown in FIGURE 15, a trimming strip R is introduced between the abovementioned flaps and the edge of a knitted article M for outer Wear into a guide G, so that the strip body is caught between the arms'7 and 8 of the U-plate and the flaps R and R are introduced into conduits confined by the diverging sections 10 and converging sections 13 of the extensions P of the arms 7 and 8. The edge of the knitted article M for outer wear to which the flaps R and R should be sewn is arranged to abut the bridge piece 14. By sliding, in the direction of the needle bar, the trimming strip R and knitted article M are both introduced in their mutual arrangement shown in the left-hand portion of- FIGURE 4 under the presser device. The latter clamps the marginal portion of the knitted article M between the folds of the flaps R and R of the strip R which are bent on issuing from the guide G in a direction opposite totheir initial direction visible in FIG. 14. The guide is so arranged that sewing of the folded flaps R and R to the edge of the knitted article M is effected, for example by a needle thread NT and a looper thread LT, in portions R and R of the flaps proximate to the folding zones of the flaps. The edge R" of the strip R is guided during sewing along the portion 22 of the rod 23 inserted between the arms or branches 7 and 8 of the U-plate. The special configuration of the plate 18 and edges 16 and 17 of the extensions P of the branches 7 and S of the guide is intended to facilitate introduction of the strip R into the guide G during preparation of the strip for sewing and to afford a progressive folding of the flaps R and R of the strip in the desired manner during sewing.

A modified embodiment shown in FIGURES 19 to 41 differs from the embodiment according to FIGURES l to 28 mainly in the following points.

The extensions P on the arms 7 and 8 of the U-plate include at the root of their diverging sections 10 sections 10' which are substantially perpendicular to the arms 7 and S and decrease in height in the direction of the needle bar. The plate 18 extends in an opposite direction in the form of a flattened tongue 64 reaching nearly to the edge of the U-plate. This tongue is .slightly spaced from the edges 7' and 8' of the U plate and is situated in the plane of symmetry SS of the latter.

The means for guiding the free edge R' of the trim-' ming strip R or collar include a bar 65 slidably mounted between the branches 7 and 8 parallel with the bottom of the U-plate; 66 extending through the bottom 15 of the plate and is guided in a through hole 67 (FIG..40) cut in the height of a bolt'68. The latter is secured to the plane 4 of the bell crank 3 by means of a nut 69. The head of the bolt 68 is moreover formed with a tapped hole 7% connecting with the through hole 67. A screw 71 is screwed into the tapped hole 70 and stabilizes on tightening the position of the rod 66 and bar 65 with respect to the guide.

Auxiliary means S (FIGURE 41) is provided at the level of the presser device for guiding the free edge of the trimming strip after it issues from, the guide G. This means comprises a slide plate 72'formed with a longitudinal slot 73, superposed on the slidable cover 46 which slides in the manner described above in a suit: able seat in the plate L forming the working plane of the machine. The cover 40 carries a pivot 74 and a screw 75 extending through a slot 73 in the slide plate 72, and so arranged that the slide plate 72 is slidable in a direction perpendicular to the work feed. A knob 76 can be screwed onv the screw 75 and serves to hold the slide plate 72 in the desired position. The auxiliary guide comprises a U-shaped strap 77 secured to the end of the plate 72 and opening towards the presser device. The position of the slide plate 72 is of course selected so that a bottom 77a of the strap 77 is aligned with the face of the bar 65 opposite the rod 66. The abovedescribed auxiliary guide could be used also in connection with the embodiment described with reference to FIGURES 1 The last construction detail distinguishing the embodiment shown in FIGURES 29 to 41 from the one shown in FIGURESl to 13 is the provision of a cover plate '73 which is secured by means of screws 79, FIGS. 31 and 39, to the cover K. This cover plate is formed at the top with an oblique portion 80 bent at right angle to the remainder of the plate 78. This portion is juxtapositioned relative to the edge of the triangular plate 34 which is likewise carried by the cover K which, as explained above, completes the plate L. The oblique portion 80 on the plate 78 facilitates access of the lower flap R of the strip R to the guide G.

It will be understood that, the principle of the invention is left unaltered, various construction details of the guides and cooperating machine parts on which the guides are mounted, can be widely varied with respect to the examples described and shown without departing from the scope of this invention.

For example, the length of the extensions P, measured in the direction of the work feed, can be varied. The same applies to the means for supporting the guide G which might be anchored instead of to the titltable cover K to a stationary portion of the machine frame D.

Construction details of the presser device as well as of the needle plate and feed unit could likewise be varied, though the corresponding members as described and illustrated should be preferred in that they afford successful sewing.

What I claim is:

1. A double-chain sewing machine having a work sup- The bar 65 is secured to the end of a rod port, a needle plate, work feed members and a needle bar for attaching an outer wear trimming strip split to form two similar flaps superposed in; part at their borders and joined to the edge of a knitted article, said guide comprising a Y-shaped conduit in cross section with the open end of the Y turned toward the needle plate and the needle bar of the machine, said guide comprising bent over end portions on the diverging arms of the Y, converging sections connected to said bent over portions situated within and parallel with said diverging Y arms, a bridge piece joining said converging sections at their ends adjacent the junction of the diverging Y arrns defining a substantially V-shaped conduit in cross section, a V-shaped plate in cross section supported by said bridge piece within said V-shaped conduit, tongues on said V-shaped plate fitting into each of the V-shaped conduit branches subdividing the said V-shaped conduit into two interconnecting guide portions, the middle portion of the Y -shaped conduit comprising a horizontally extending elongated plate of U-shaped cross section with the arms of the U merging with said diverging arms and defining a guideway in communication with said V-shaped conduit whereby the two split flaps of the trimming strip are guided by the V-shaped conduit and the remaining portion of the trimming strip is guided by the U-shaped plate for attachment of said trimming strip to a knitted article, and means supporting said Y-shaped conduit wherein the end sections of the diverging Y arms are intersected by the work support of the machine and the end of one diverging Y arm is beneath said work support; 2. A double chain sewing machine according to claim 1, including means defining an auxiliary guide for guiding a free edge of said trimming strip.

' 3. A double chain sewing machine according to claim 2, in which said auxiliary guide comprises a U-shaped member for receiving said trimming strip therein and guiding said strip during attaching thereof to said knitted article.

4. A double chain sewing machine according to claim 3, inwhich said auxiliary guide comprises means for variably positioning said guide relative to said work support thereby to accommodate strips of different widths.

References Cited by the Examiner UNITED STATES PATENTS 114,387 5/71 Allebaugh et a1. Q 112-137 514,606 2/94 Riker 112-137 976,963 11/10 Weis et a1. 112-137 1,230,906 6/17 Krug et a1 l12138 1,268,415 6/18 Willis 112137 1,536,517 5/25 Oldfield 112-137 1,562,446 11/25 Ham 112-138 1,932,575 10/33 Cooper et a1 112136 1,969,950 8/34 Seaman 112137 2,011,512 8/35 Carmichael et a1. 112262 2,313,261 3/43 Podgorny .Q 112152 2,940,406 6/60 Marforio 112-197 2,972,318 2/61 Schindler 112147 2,989,018 6/ 61 Bleicher 1l2262 FOREIGN PATENTS 17,595 1902 Great Britain.

JORDAN FRANKLIN, Primary Examiner.

DAVID J. WILLIAMOWSKY, Examiner.

Claims (1)

1. A DOUBLE-CHAIN SEWING MACHINE HAVING A WORK SUPPORT A NEEDLE PLATE, WORK FEED MEMBERS AND A NEEDLE BAR FOR ATTACHING AN OUTER WEAR TRIMMING STRIP SPLIT TO FORM TWO SIMILAR FLAPS SUPERPOSED IN PART AT THEIR BORDERS AND JOINED TO THE EDGE OF A KNITTED ARTICLES, SAID GUIDE COMPRISING A Y-SHAPED CONDUIT IN CROSS SECTION WITH THE OPEN END OF THE Y TURNED TOWARD THE NEEDLE PLATE AND THE NEEDLE BAR OF THE MACHINE, SAID GUIDE COMPRISING BENT OVER END PORTIONS ON THE DIVERGING ARMS OF THE Y, CONVERGING SECTIONS CONNECTED TO SAID BENT OVER POSITION SITUATED WITHIN SAID PARALLEL WITH SAID DIVERGING Y ARMS, A BRIDGE PIECE JOINING SAID CONVERGING SECTIONS AT THEIR ENDS ADAJCENT THE JUNCTION OF THE DIVERGING Y ARMS DEFINING A SUBSTANTIALLY V-SHAPED CONDUIT IN CROSS SECTION, A V-SHAPED PLATE IN CROSS SECTION SUPPORTED BY SAID BRIDGE PIECE WITHIN SAID V-SHAPED CONDUIT, TONGUES ON SAID V-SHAPED PLATE FITTING INTO EACH OF THE V-SHAPED CONDUIT BRANCHES SUBDIVIDING THE SAID V-SHAPED CONDUIT INTO TWO INTERCONNECTING GUIDE PORTIONS, THE MIDDLE PORTION OF THE Y-SHAPED CONDUIT CMPRISING A HORIZONTALLY EXTENDING ELONGATED PLATE OF U-SHAPED CROSS SECTION WITH THE ARMS OF THE U MERGING WITH SAID DIVERGING ARMS AND DEFINING A GUIDEWAY IN COMMUNICATION WITH SAID V-SHAPED CONDUIT WHEREBY THE TWO SPLIT FLAPS OF THE TRIMMING STRIP ARE GUIDED BY THE V-SHAPED CONDUIT AND THE REMAINING PORTION OF THE TRIMMING STRIP IS GUIDED BY THE U-SHAPED PLATE FOR ATTACHMENT OF SAID TRIMMING STRIP TO A KNITTED ARTICLE, AND MEANS SUPPORTING SAID Y-SHAPED CONDUIT WHEREIN THE END SECTIONS OF THE DIVERGING Y ARMS ARE INTERSECTED BY THE WORK SUPPORT F THE MACHINE AND THE END OF ONE DIVERGING Y ARM IS BENEATH SAID WORK SUPPORT.

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