EP0111127A1 - Châssis destiné à tendre un tissu enroulé autour de celui-ci - Google Patents

Châssis destiné à tendre un tissu enroulé autour de celui-ci Download PDF

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Publication number
EP0111127A1
EP0111127A1 EP83110656A EP83110656A EP0111127A1 EP 0111127 A1 EP0111127 A1 EP 0111127A1 EP 83110656 A EP83110656 A EP 83110656A EP 83110656 A EP83110656 A EP 83110656A EP 0111127 A1 EP0111127 A1 EP 0111127A1
Authority
EP
European Patent Office
Prior art keywords
arms
bar
teeth
fabric
fact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP83110656A
Other languages
German (de)
English (en)
Inventor
Angelo Rossi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from IT03611/82A external-priority patent/IT1157475B/it
Priority claimed from IT473183U external-priority patent/IT8304731V0/it
Application filed by Individual filed Critical Individual
Publication of EP0111127A1 publication Critical patent/EP0111127A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/025—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted for winding or storing webs with the confronting layers spaced from each other, e.g. frames for storing nap fabrics

Definitions

  • the present invention relates to a frame for tightening fabric wound on it.
  • Frames of the above type currently available on the market are mainly used for transporting fabric from the manufactur er to the user or for compact storage.
  • the said frames are preferably made of metal and come essentially in two types.
  • Frames of the first type comprise a first bar the opposite longitudinal ends of which are fitted with two supporting elements each of which has a second bar with its longitudinal axis perpendicular to that of the first bar. From the centre section of the second bar, four arms branch out radially, each of which is fitted with a number of hooks along its entire length for hanging the fabric up by the selvedges.
  • Frames of the second type also comprise a first bar fitted at the ends with two supporting elements, each of which, however, has a centre coupling for housing the corresponding end of the first bar and from which a number of radial arms branch out with the free end welded to an annular element coaxial with the said centre coupling.
  • Each arm is fitted with a number of hooks on which to hang up the fabric.
  • the method by which the fabric is wound does not provide for securing the selvedges firmly on to the hooks.
  • the folds in the fabric remain loose owing to the fact that the tip of the hook piercing the selvedge is higher than the part the selvedge is hung on to.
  • This combined with the weight of the fabric itself, may result in creasing of the folds or even crushing of the pile.
  • the force exerted on the fabric when it is wound, combined with the weight of the fabric itself may increase the tear on the selvedge caused by the hook with the result that the fold is even more badly creased.
  • the selvedge may even rip completely so that the fold falls off altogether inside the frame.
  • a metal wire is currently inserted on each arm to strengthen the hold on the fabric.
  • the metal wire which acts like the wires on an ordinary clothes line, inevitably bends so as to reduce tension on the fabric.
  • the selvedge secured to the supporting element contacting the supporting face, may slip off the hooks.
  • the frame is later positioned horizontally, on account of the selvedge coming loose, the folds in the fabric fall down.
  • the selvedges may also be worked loose off the hooks as a result of normal oscillation on the supporting elements around the first bar. All these drawbacks obviously occur more frequently when transporting or storing fabric wound on the frame. As already mentioned, the said drawbacks have a negative effect on the appearance of the fabric, particularly those with a thick pile, to the extent that they may be rendered unusable, in addition to the transport and stor age cost involved. Finally, the abovementioned types of frame also make unwinding equally complex.
  • the aim of the present invention is to provide a frame, for tightening fabric wound on it, which is free from the above drawbacks, that is, one providing for winding and unwinding the fabric quickly and easily, and for keeping the folds tight so as to prevent creasing or crushing of the pile during transport or storage.
  • the present invention relates to a frame for tightening fabric wound on it, the said frame comprising a first bar the ends of which are fitted with two supporting elements having a hollow body fitted on to the corresponding end of the said first bar and a number of arms for supporting the said fabric; the longitudinal axes of the said supporting elements being in a plane perpendicular to the longitudinal axis of the said first bar, characterised by the fact that each of the said arms carries a number of teeth, aligned in relation to one another and each having a cavity; that, when in use, the selvedge of the said fabric is inserted between the said teeth and the straight section of a body, one for each of the said arms, is inserted into the said cavities so as to pierce the said selvedges and support them while, at.the same time, being supported by the said teeth, so as to tighten the said fabric between the said corresponding opposite arms of the two said supporting elements.
  • each arm ( 1 1) carries a comb element (1 2 ) made from a plate, bent to form a U, from which, prior to bending, strips of material are removed so as to leave two solid top parts (17) and so, after bending, define a number of U-shaped teeth ( 13 ) with an internal cavity ( 1 4).
  • the selvedges on the fabric are held temporarily between teeth 13 until a straight section (19) of a metal wire ( 15 ) is inserted inside internal cavities 14 on teeth 13 so as to pierce and support the said selvedges.
  • the said metal wire (1 5 - Fig.6) has an open annular head designed to engage part of portion 8 when section 19 is inserted into comb element 12 .
  • the top parts (17) on comb element 12 grip arm 1 1 to which they are either welded or screwed.
  • Number 21 in Fig.s 4 and 5 indicates a comb element-with a different design from element 1 2.
  • Element 21 is also made from a plate bent to form a U and therefore comprising two solid top parts (22) and a number of U-shaped teeth (23) with an internal cavity (24) into which portion 19 of wire 15 is inserted.
  • Top parts 2 2 are shaped to form a downturned U so that one can accommodate the top part of arm 11 and the other the top part of rod 25 parallel to arm 11.
  • the two ends (26) of rod 25. are bent to form an L by which it is either welded or screwed to arm 1 1.
  • a spacer ( 27 ) is forced to clamp element 21 to arm 11 without welding or using assembly screws.
  • Part 2 1 may sometimes consist of more than one piece, each comprising one or more teeth (23). The reason for this arrangement is to enable teeth 23, or sets of two or more teeth, to be spaced as required.
  • the fabric When in use, the fabric is wound in the same way as on pres ently sold frames with the difference that, when being wound, the selvedges on the fabric are held temporarily tight between teeth 13 or 23 on frame 1 by means of a special device covered by another patent.
  • portion 19 of wire 15 on each arm 11 is inserted into cavities 14 or 24 so as to pierce the selvedges on the fabric which, even when the said device is released, remain taut between the two supporting elements (3).
  • one or more teeth ( 13 or 23 ) will be skipped when winding the fabric so as not to crush the pile.
  • Number 3 1 in Fig.7 indicates a frame for tightening fabric wound on it, the said frame comprising a main bar (32) the two ends of which are fitted with two elements (33) for supporting the wound fabric.
  • Each supporting element (33) comprises a bar (3 4 ) the longitudinal axis of which is perpendicular to the longitudinal axis of bar 32 the ends of which are forced into hollow elements 35 extending from a centre part of each bar (34).
  • the ends of bar 32 are secured inside hollow elements 35 by means of two wedges (36) forced inside each of the said hollow elements (35) between the inside walls of the latter and the outside walls of bar 3 2 .
  • each wedge (36) has a rectangular section and each wedge (36) an essentially L-shaped section so that it can be inserted along one edge of bar 32 and grip parts of adjacent walls on it.
  • Wedge 36 is tapered with a tailpiece (37), on the end outside hollow element 35, for engaging or releasing the said wedge 36 from hollow element 35 when knocked.
  • the longitudinal ends of bar 34 in Fig.7 are fitted with two bars (38) bent into essentially triangular shape, each of the said bars having a centre portion (4 1 ) fitted to the end of bar 34 with its longitudinal axis perpendicular to the longitudinal axis of both bar 34 and bar 3 2 , and two arms (4 2 ) with their longitudinal axes converging from opposite sides with the longitudinal axis of bar 34 and lying in the same plane as the longitudinal axes of portion 41 and bar 3 4 .
  • the ends of arms 42 are welded to bar 34 close to its intermediate section.
  • Each of bars 34 is also fitted with another two straight arms (4 3 ) for each of bars 38.
  • the said arms (43) are located inside the triangle formed by bar 3 8 and are parallel to arms 42 .
  • Each arm 43 has a first end welded to bar 34 and a second end welded to portion 41 on bar 38. As shown in Fig.s 7 and 8, each arm 4 2 and 43 is fitted with a comb element (45) for tightening the fabric between the two opposite supporting elements (33).
  • Each comb element 45 comprises a top part (46), bent in the shape of a U and gripping a portion of arms 42 or 43, and a bottom part with a number of teeth ( 47 ), each with the free end bent to form a cavity (48).
  • the selvedges on the fabric are held temporarily between teeth 4 7 on each com element (45) until a straight section (5 1 ) of a metal wire (52), bent in the shape of a U, is inserted into cavities 48, aligned with one another, on each comb element ( 45 ) so as to pierce and support the said selvedges.
  • the said metal wire (52 - Fig.9) has a straight centre section (53) and two straight side sections ( 51 ) which fit into the cavities (48) of two adjacent comb elements (45) supported by parallel arms 42 and 43 respectively.
  • the fabric on each pair of parallel arms 42 and 43 is folded with an inside angle of 135° by one of arms 42 and 43 and subsequently with an inside angle of 135 ° by the other arm 43 or 42.
  • the pile on the fabric is turned towards the outside of frame 31 at an angle of 45°.
  • the fold is halved by folding the fabric on each pair of parallel arms 42 and 43, at an inside angle of 1 35° on the first arm (42 or 43 ) and then at another 135 ° on the remaining arm (43 or 4 2 ).
  • the fabric is wound in the same way as on frame 1 in Fig. l .
  • portions 51 of metal wire 52 are inserted simultaneously into aligned cavities 48 on two comb elements (45) on the said parallel arms 4 2 and 43 .
  • portions 5 1 pierce the selvedges on the fabric inserted between teeth 47 so that, when the said temporary holding device is removed, the fabric remains taut between the .two supporting elements (33). of course, depending on the length of the pile, one or more teeth ( 47 ) will be skipped when winding the fabric to prevent crushing the pile.
  • Number 6 1 in Fig.11 indicates a frame for tightening fabric wound on it, the said frame comprising a bar (6 2 ) the opposite ends of which are fitted with two wheel-like elements (63) for supporting the fabric.
  • Each supporting element (63) has a centre coupling (64), which fits on to the corresponding end of bar 6 2 , and a number of radial arms (65) each longitudinal axis of which defines, in the same plane, the same angle in relation to the longitudinal axis of arm 65 before and after it, and a right-angle in relation to the longitudinal axis of bar 62.
  • a first end (66) of arms 6 5 is secured, e.g. welded, to centre coupling 64, while a second end (67) is secured, e.g.
  • each arm 65 in Fig.s 12 and 13 is similar to a comb element.
  • each arm 6 5 is made with a number of slots (7 1 ) to form a number of teeth (72) aligned to one another and each having a cavity (73) indicated by a dotted line in Fig. 13 .
  • the selvedges on the fabric are held temporarily in slots 71 until a straight portion (74) of metal wire 75 is inserted into cavities 73 on teeth 72 so as to pierce the said selvedges and support the fabric.
  • the said metal wire (75 - Fig.14) has an open annu- ar head (76) for engaging part of annular element 68 when portion 7 4 is inserted into cavities 73.
  • annular element 68 has a hole (77) coaxial with a hole in the said end 67. Through these holes, straight portion 74 of metal wire 75 fits through cavities 73 on teeth 72.
  • the fabric is wound in the same way as on frames 1 and 31 .
  • portion 7 4 of the corresponding wire (75) is inserted into cavities 73 of teeth 72 so as to pierce the selvedges on. the fabric held in slots 71.
  • the said device is then released, the same being no more than an element with a number of arms, each with a number of grips for gripping the selvedges on the fabric which, even when the device is released, remains taut between the two supporting elements (6 3 ) in that portions 74 on wires 75 are supported by teeth 7 2 to prevent them from bending. of course, depending on the length of the pile on the fabric, one or more teeth will be skipped when winding the fabric, so as not to crush the pile.
  • frames 3 1 and 6 1 provide for a softer fold on the fabric (Fig.10).
  • the - crosswise folds will be less evident so that the fabric falls easily back into place when unwound or used.
  • Another point worth noting is the negligible effect on the pile which, along the crosswise folds, no longer opens 90° but by half that angle on frame 31 and by an angle depending on the number of arms (65) on frame 61.
  • the fabric may be arranged parabolically so as to reduce the effect on the pile or fabric even further.
  • the comb element on frame 1 may be secured to arm 11 in any number of ways and the comb element itself be designed differently from the ones described providing it comprises a number of U-shaped teeth or teeth comprising an annular portion for accommodating portion 19 of wire 15.
  • the said design variations depend on production time and cost.
  • the teeth may be annular or made of one piece with a hole for accommodating the said portion 19.
  • the comb element may even be made by winding a helical metal wire round arm 1 1 , or by bending an undulated metal wire in the form of a U or in more than one piece fitted with one or more teeth.
  • arms 11 may be made in the same. way as arms 65 on frame 6 1 , that is, with built-in teeth with cavities aligned to one another.
  • Arm 42 or 43 on frame 3 1 may be made from a bar bent in the shape of a U and either screwed or welded to the other arm ( 43 or 42).
  • Another arrangement of arms 42 and 43 could comprise a bar bent to form a quadrilateral with two parallel sides fitted with two comb elements (45) and the other two sides connected to bar 34 and the end of portion 41 .
  • portions 51 form part of a single U-shaped piece, this in no way means that portions 5 1 may not be disconnected from each other or each have a head designed for connecting it to frame 31.
  • the number of arms (6 5 ) may differ, as may the way in which the ends of bar 62 are secured to the two supporting elements (63).
  • Teeth 72 may be designed differently providing they comprise an annular portion for accommodating portion 74 of wire 75.
  • arms 6 5 may.be designed differently with a comb element similar to the one described on frame 1 or one of its variations already mentioned.
  • Teeth 72 and, in particular, cavities 73 may protrude from the space formed by element 68.
  • frames 1, 31 and 61 are preferably made of metal, they may be made, even only partly, of plastic and suitably strong board.

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  • Preliminary Treatment Of Fibers (AREA)
EP83110656A 1982-12-06 1983-10-25 Châssis destiné à tendre un tissu enroulé autour de celui-ci Withdrawn EP0111127A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT361182 1982-12-06
IT03611/82A IT1157475B (it) 1982-12-06 1982-12-06 Intelaiatura di tipo perfezionato particolarmente per tenere in tensione un tessuto arrotolato sulla stessa
IT473183U 1983-01-27
IT473183U IT8304731V0 (it) 1983-01-27 1983-01-27 Intelaiatura atta a tenere in tensione un tessuto arrotolato sulla stessa

Publications (1)

Publication Number Publication Date
EP0111127A1 true EP0111127A1 (fr) 1984-06-20

Family

ID=26325456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110656A Withdrawn EP0111127A1 (fr) 1982-12-06 1983-10-25 Châssis destiné à tendre un tissu enroulé autour de celui-ci

Country Status (1)

Country Link
EP (1) EP0111127A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936882A (en) * 1958-07-24 1960-05-17 Kreuthmeier John Creels
US2944751A (en) * 1957-07-01 1960-07-12 Schwartz Sol Packing device for pile fabrics
AT287632B (de) * 1964-09-01 1971-01-25 Dupuis & Co Rotierender Wickelstern für Gewebebahnen
DE2408590A1 (de) * 1974-02-22 1975-09-04 Scheibler Peltzer & Co Wickelrahmen fuer polgewebe
US4089484A (en) * 1975-01-31 1978-05-16 Scheibler Peltzer & Co. Take-up frame for pile fabric

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944751A (en) * 1957-07-01 1960-07-12 Schwartz Sol Packing device for pile fabrics
US2936882A (en) * 1958-07-24 1960-05-17 Kreuthmeier John Creels
AT287632B (de) * 1964-09-01 1971-01-25 Dupuis & Co Rotierender Wickelstern für Gewebebahnen
DE2408590A1 (de) * 1974-02-22 1975-09-04 Scheibler Peltzer & Co Wickelrahmen fuer polgewebe
US4089484A (en) * 1975-01-31 1978-05-16 Scheibler Peltzer & Co. Take-up frame for pile fabric

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