Fixing binding strips to knitwear on linking machines

Abstract

In order to allow the so called "casual" impaling of the edges of the binding strip and of the knit-wear article on the points of the rotary dial of a linking machine, the strip is formed at its opposite longitudinal edges with tabs which are superimposed on the inner face of the binding strip before the latter is bent to channel shape. Thicker end portions are formed on the free longitudinal edges of said tabs in order to permit semi-automatic impaling of the binding strip onto the points using guides provided with through slots directed towards the annular path of the points. A further guide allowing a semi-automatic impaling of the article edge to be sewn to the binding strip, may be also provided.

What we claim is: 
     
       1. A method of attaching binding strips to parts of knitted articles of wear on a linking machine, comprising: a. providing a knitted binding strip having auxiliary longitudinal tabs (2, 3, 9, 10, 15, 16) extending from the opposite edges (4,5) of the actual strip (1) to be attached to the knitted article (7);   b. running the knitted article (7) and strip (1) onto the points (6) on the rotary dial (12) of a linking machine in such manner that the strip takes a channel shape, one at least (2, 15, 16) of said tabs being juxtaposed on the inner channel face (1a), in such manner that the marginal portion (7b) of said knitted article (7) extends a certain length within the channel;   c. forming on said linking machine a chain stitch (8) joining the opposite faces of the strip (1) to the knitted article (7).   
     
     
       2. A method as claimed in claim 1, wherein the auxiliary tabs (2, 3, 9, 10, 15, 16) on the binding strip at least at their portions adjacent the knit of the actual strip (1) are smaller in thickness than the actual strip. 
     
     
       3. A method as claimed in claim 2, wherein at least one of the auxiliary tabs on the strip is so arranged that one face thereof is in continuation of a surface (1a) of the actual strip (1), adapted to form the inner face of the channel after impaling the strip on the points (6) on the rotary dial of the linking machine. 
     
     
       4. A method as claimed in claim 3, wherein the auxiliary tabs on the strip are in part at least knitted from a yarn other than the yarn of the actual strip. 
     
     
       5. A method as claimed in claim 4, wherein the auxiliary strip tab is in part at least knitted from elasticized yarn. 
     
     
       6. A method as claimed in claim 2 wherein the auxiliary tabs on the strip include a first section (9, 15) adjacent the knit of the actual strip (1) smaller in thickness than the strip knit, and a further marginal section (10, 16) of increased thickness with respect to the first section (9, 15) 
     
     
       7. A method as claimed in claim 6, wherein the thickness of said second section (10, 16) equals the thickness of the strip knit (1). 
     
     
       8. A method as claimed in claim 6, wherein the free margin of the second section is provided with a selvedge, the first section (9, 15) being substantially arranged in the longitudinal middle plane of the strip knit (1). 
     
     
       9. A method as claimed in claim 6 further comprising running the strip and article to be joined on the points (6) of the rotary dial of the linking machine by arranging both longitudinal tabs on the strip within the channel formed by bending over the strip proper (1) and removing the second thicker section of the tabs before completing the seam. 
     
     
       10. A method as claimed in claim 6, wherein the first sections (9, 15) of the auxiliary tabs extending beyond the opposite edges (4, 5) of the strip (1) are co-planar with the common longitudinal middle plane of their respective second sections (10, 16) of increased thickness and of the strip knit (1). 
     
     
       11. A linking machine provided with a bedplate, a rotary dial having points thereon, said dial being rotatable about said stationary circular bedplate, and a guide adapted to assist in impaling knitted goods on said points, the said guide comprising: a vertical wall (19) situated in a plane intersecting the annular path of the points (6), extending from a region situated externally of the said path substantially at least to the outer circumference, defined at the top in part by a straight edge (19c) slightly above the surface over which the points (6) of the linking machine revolve;   a first horizontal elongated plate (22) arranged above the said plane on which the points (6) revolve, formed with a straight edge (22b) turned towards the outside of the path of the points (6) and extending parallel to said vertical wall (19), the said plate (22) defining with the top edge (19c) of the said vertical wall (19) a slit;   a second horizontal elongated plate (20) arranged on the side of the said vertical wall (19) remote from the points (6), beneath the plane in which the points revolve, formed with a rectilinear edge (20a) extending parallel to the said vertical wall (19) and defining with the latter a slit substantially equal in width to said first mentioned slit, the rectilinear edge of said second plate and the straight edge of said first plate (22) are disposed in spaced apart relation on opposite sides of said vertical wall;   and means for securing the said wall and said plates to the stationary circular bedplate of the machine.   
     
     
       12. A machine as claimed in claim 11, wherein said guide device further comprises a roller (27) formed with a circumferential groove, mounted for free rotation in the guide device near the end of said vertical wall (19) near the points (6) in a position such that the points extend through said circumferential groove. 
     
     
       13. A machine as claimed in claim 12 wherein said guide device comprises means for severing a portion of a strip of knitted goods during impaling of the edge of the strip on the points (6). 
     
     
       14. A machine as claimed in claim 13 wherein said severing means comprises a rotary cutter disc (58) situated beneath the roller (27) coaxially with the latter and above the said second plate (20), the vertical wall (19) having an extension (60) extending at least to the region at which the said cutter disc (58) is least spaced from the rotary dial (12) carrying the points (6). 
     
     
       15. A machine as claimed in claim 11, wherein the end of said second plate (20) extends beyond the end of said vertical wall (19) remote from the points. 
     
     
       16. A machine as claimed in claim 15 further comprising means adapted to stretch the knitted strip over the top edge (19c) of the said vertical wall (19). 
     
     
       17. A machine as claimed in claim 16 wherein said means comprises a brush (56) in the form of a rotary disc arranged between the end of said vertical wall (19) remote from the points (6) and said second horizontal plate (20), the axis of said brush being inclined through 45° to said second plate. 
     
     
       18. A machine as claimed in claim 11 further comprising a second guide device (B) having a pair of plates (29, 30) defining a through slot (31), the plates being slightly spaced above the annular path of the points (6) so that the slot intersects the region of the circle (39) over which the points travel, the second device comprising a slide (33) adapted to support the said plates (29, 30) mounted on the stationary structure of the machine for movement over an annular path the axis of which coincides with the rotational axis of the dial (12) carrying the points (6). 
     
     
       19. A machine as claimed in claim 18 further comprising a third guide device (C) includes a U-shaped channel (43) opening upwardly, extending towards the inside of the annular path of the points (6), the said third device including a slide (49) adapted to support the said channel (43) and mounted on the stationary machine structure (38) for movement over an annular path, the axis of which coincides with the rotational axis of the rim (12) carrying the points (6) between the said first and second mentioned guides (A, B). .Iadd. 20. A knitted binding strip adapted to form the trim along the edge of a garment comprising a main strip portion having a predetermined thickness and at least one auxiliary longitudinal tab having a thickness less than the thickness of said main strip knitted along an edge of said main strip. .Iaddend..Iadd. 21. A knitted binding strip as set forth in claim 20 further comprising an additional auxiliary longitudinal tab having a thickness equal to the thickness of said first-mentioned tab knitted along the opposite edge of said main strip. .Iaddend..Iadd. 22. A knitted binding strip as set forth in claim 21 wherein at least one of said auxiliary tabs on said strip is so arranged that one face thereof is in continuation of a surface of said main strip adapted to form the inner face of a channel after folding of said strip longitudinally. .Iaddend..Iadd. 23. A knitted binding strip as set forth in claim 21 wherein said auxiliary tabs on said strip are in part at least knitted from a yarn other than the yarn of the main strip. .Iaddend..Iadd. 24. A knitted binding strip as set forth in claim 23 wherein said auxiliary tabs are in part at least knitted from elasticized yarn. .Iaddend..Iadd. 25. A knitted binding strip as set forth in claim 21 wherein at least one of said auxiliary tabs includes a first section adjacent the main strip smaller in thickness than said main strip and a further marginal section of increased thickness with respect to said first section. .Iaddend. .Iadd. 26. A knitted binding strip as set forth in claim 25 wherein the thickness of said marginal section equals the thickness of said main strip. .Iaddend..Iadd. 27. A knitted binding strip as set forth in claim 25 wherein said first section is knitted at least in part from a separating thread to facilitate separation of said marginal section from said first section after the binding strip is secured to a garment. .Iaddend..Iadd. 28. A method of attaching a knitted binding strip to a knitted article comprising providing a knitted binding strip having auxiliary longitudinal tabs extending from the opposite edges of the actual strip to be attached to the knitted article, folding the strip into a channel-shaped binding strip about an edge of said article with at least one of said tabs being within the channel-shaped binding strip and securing said strip to said channel-shaped binding edge by stitching through said article, and said channel-shaped binding strip. .Iaddend..Iadd. 29. A method of attaching a knitted binding strip to a knitted article as set forth in claim 28 further comprising juxtaposing the other of said tabs on the inner channel face prior to securing said binding strip to said article. .Iaddend.