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
  • B65H75/18—Constructional details
  • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
  • B65H49/18—Methods or apparatus in which packages rotate
  • B65H49/20—Package-supporting devices
  • B65H49/32—Stands or frameworks
  • B65H49/324—Constructional details
  • B65H49/325—Arrangements or adaptations for supporting the shafts, e.g. saddle type shaft bearings
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
  • B65H49/18—Methods or apparatus in which packages rotate
  • B65H49/20—Package-supporting devices
  • B65H49/30—Swifts or skein holders
  • B65H49/305—Swifts or skein holders with axially adjustable or removable elements for retaining the package
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
  • B65H49/18—Methods or apparatus in which packages rotate
  • B65H49/20—Package-supporting devices
  • B65H49/32—Stands or frameworks
• • 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
  • B65H75/18—Constructional details
  • B65H75/20—Skeleton construction, e.g. formed of wire
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2701/00—Handled material; Storage means
  • B65H2701/50—Storage means for webs, tapes, or filamentary material
  • B65H2701/51—Cores or reels characterised by the material
  • B65H2701/513—Cores or reels characterised by the material assembled mainly from rigid elements of the same kind
  • B65H2701/5134—Metal elements
  • B65H2701/51344—Metal profiles

Definitions

• the present invention relates to a tool for a coil which is formed of a continuous flexible object and has a cylindrical outer side, a cylindrical inner side and a central hole running axially through it that is surrounded and defined by said cylindrical inner side.
• the present invention also relates to a central part for a coil which is formed of a continuous flexible object and has a cylindrical outer side, a cylindrical inner side and a central hole running axially through it that is surrounded and defined by said cylindrical inner side, which central part is designed for insertion into the central hole of the coil to be activated for cooperation with the inner side of the coil.
• EP 0 525 093 Bl describes a tool for producing a rotatable unit from a coil of an object of the type described, the coil being produced by utilizing a supporting sleeve of cardboard or boards, for instance.
• the boards may be separated by gaps.
• When the object is coiled a parcel of coils provided with sleeves and binding means for delivery to the application site where said tool is available for assembling such parcels.
• the sleeve ensures that the coil retains its shape when being handled.
• the known tool consists of a connecting rod and two annular side supports or end elements assembled at right angles thereto, provided with concentric, fixed centring elements for engagement with the inside of the coil .
• the tool and the coil provided with a sleeve form a unit rotatable about an axis of rotation that is defined by the connecting rod.
• the rotatable unit is provided with a bearing shaft that is introduced through the connecting rod, after which the rotatable unit with the bearing shaft is placed in an uncoiling trestle so that the unit is rotatably journalled on the bearing shaft.
• plastic hosing is supplied in the form of coils without such a sleeve or core. In such coreless coils the inner layer of turns of the plastic hose defines the central hole running through the coil, and thus the inner side of the coil.
• Omission of the core reduces the cost of the coil and there is no core to take care of at the work site after the plastic hosing has been uncoiled.
• An example of the use of coreless coils of plastic hosing is for laying out such plastic hosing for subsequent drawing of fibre optics cable, the plastic hosing then constituting a protective casing for the fibre optic cable.
• the plastic hosing is normally coiled in the production plant where it is manufactured. After coiling the coil is provided with a number of binding strips running around the coil through the central hole, after which the bound coil is transported to a work site where the plastic hosing is to be laid.
• a tool is generally- provided at the work site, consisting of a bearing shaft in the central hole of the coil, after which the coil and its bearing shaft is placed on an uncoiling trestle and the binding strips around the coil are cut .
• the diameter of the bearing shaft must be slightly less than the diameter of the central hole of the coil so that the bearing shaft can be inserted into the central hole of the coil. An injurious clearance thus appears between them since the coil will slide uncontrollably on the bearing shaft during uncoiling. Uncoiling will therefore occur unevenly and in jerks, which in turn gives rise to disturbances in the uncoiling and thus undesirable interruptions.
• the central hole of the finished coil acquired a circular or substantially circular cross section.
• the binding means hold the layers of plastic hosing together but do not have any noticeable stabilizing effect on the roundness of the coil. Due to the lack of a supporting core, the coil is often deformed while being transported to the work site, particular if it is transported with the central hole lying horizontally, whereupon the coil is compressed so that, upon arrival at the work site, its central hole is no longer circular. Both the inside and the outside of the coil are thus non-circular.
• the cross section of the central hole may in certain cases be strongly elliptical or oval. Due to the rigidity of the plastic hosing it is impossible to restore the circular cross section of the central hole on site by means of mechanical force.
• a non-circular cross section of the central hole of the coil therefore causes additional problems during uncoiling since the diameter of the bearing shaft for such a non-circular coil must be less than the smallest diameter of the central hole. Varying clearance, seen peripherally, therefore occurs between the non-circular inner wall of the coil and the bearing shaft, thus causing the coil to jump on the bearing shaft during uncoiling, which in turn causes the coil to have an even greater tendency to slide uncontrollably on the bearing shaft.
• the object of the present invention is to eliminate the problems mentioned above and to provide a tool that enables simple and reliable handling of a coil of a continuous flexible object, primarily in connection with uncoiling the object from the coil.
• the tool in accordance with the invention is characterized in that it comprises a central part for insertion into the central hole of the coil to be activated for cooperation with the inner side of the coil, which central part comprises
• a central bearing means defining an axis of rotation for rotation of the tool, which axis of rotation coincides with the centre line of the body, - a plurality of peripheral engagement members distributed around said centre line and located at a distance therefrom,
• Figure 1 shows in perspective a coil of a continuous object in the form of a plastic hose, provided with strips.
• Figure 2 shows in perspective parts of a central part or hub-forming device of a tool in accordance with a first embodiment of the invention.
• Figure 3 is a view from above of the coil and the central part in accordance with Figures 1 and 2, respectively, the central part having been inserted into the central hole of the coil and being in non-active state.
• Figure 4 is a view from above of the coil and central part in accordance with Figure 3 , where the central part is in an active state to produce a rotatable unit.
• Figure 5 shows in perspective an uncoiling trestle and the rotatable unit shown in Figure 4 in position for lowering into the uncoiling trestle, the unit being provided with a bearing shaft .
• Figure 6 shows in perspective the uncoiling trestle, bearing shaft and the rotatable unit as shown in Figure 5, where the rotatable unit is journalled by means of the bearing shaft in the uncoiling trestle, ready for uncoiling.
• Figure 7 is an exploded view of a coil of plastic hosing in accordance with Figure 1, and parts of a tool in accordance with a second embodiment of the invention in starting positions to bee assembled.
• Figure 8 shows in perspective a rotatable unit of coil and tool parts as shown in Figure 7.
• Figures 9 and 10 show views from above of a central part of a tool in accordance with a second embodiment of the invention in inserted position in a coil, the central part being in non-active and active state, respectively.
• Figures 11 and 12 show in different perspectives a central part of a tool in accordance with a third embodiment of the invention in non-expanded state.
• Figure 13 shows a section of a bearing and engagement part of the central part as shown in Figure 11.
• Figures 14 and 15 show in different perspectives the central part shown in Figure 11 and Figure 12, respectively, in freely expanded state (with no counter-action from the coil) .
• Figure 16 is a view from above of a coil as shown in Figure 1 and a central part inserted therein, in non-expanded state.
• Figure 17 is a view from above of the coil and central part shown in Figure 16, the central part have been expanded to form a rotatable unit with the coil .
• Figure 1 shows schematically a coil 1 formed of a continuous, flexible object 2, without the use of a stable inner sleeve or core .
• the coil 1 is provided with a plurality of binding strips 3 that hold the turns of the object 2 together during storage and transport of the coil to the application site as a parcel.
• the coil 1, which is thus cylindrical, has a cylindrical outer side 4, a cylindrical inner side 5 and a central hole 6 running through it which is surrounded and defined by the cylindrical inner side 5.
• the cylindrical inner side forms a relatively stable wall .
• the coil 1 also has two parallel, flat end sides 7, 8.
• Examples of continuous, flexible objects are cable, line, wire, wire cable, rope, cord, ribbon, chain, uninsulated conductors for electrical overhead lines and hosing, e.g. plastic hosing to protect fibre optics cable.
• FIG 2 shows schematically parts of a tool designed to be brought into engagement with a coil 1 of the type shown in Figure 1.
• the tool intended for repeated use, comprises a central part or hub-forming device 9 for the coil 1, the central part 9 being inserted into the central hole 6 of the coil 1 to be activated for cooperation with the inner side 5 of the coil 1.
• the central part 9 In its non-activated state, therefore, the central part 9 has a cross-sectional dimension that is less than the smallest cross-sectional dimension of the central hole 6 so that the central part 9 can freely, that is to say easily and without difficulty, be inserted into and received by the central hole 6 of the coil 1. From Figures 3 and 4 it can be seen that the coil 1 is deformed so that the central hole 6 has a non-circular cross section.
• the inner side 5 of the coil 1 is thus not round, i.e. it is non-circular.
• the central part 9 is provided with a bearing shaft to form its said bearing means 14, having the same dimension as the bearing shaft 31 described above.
• the bearing shaft in accordance with this alternative embodiment is thus rigidly joined to the tube 18 in suitable manner, e.g. a screw or bolt joint, in which case it may be advisable to arrange some form of bearing, e.g. ball or roller bearing at the ends of the bearing shaft and/or at the bottom of the recesses 36 of the trestle 32 in order to facilitate uncoiling of the object 2.
• the central part 9 of the tool shown in Figure 7 is similar to that in Figure 1 but also includes a central tube 38 having a hole 39 running through it.
• the central tube 38 extends through the tube 18, its two end portions being located outside the ends 11, 12 thereof.
• the central tube 38 is detachably fixed to the tube 18, e.g. by means of screw or bolt joint, so that the central tube 38 will form said bearing means 14 of the central part 9.
• the tool shown in Figure 7 also comprises two annular end wall elements 40, 41, each of which is provided with a hub 42 having a hole, a circular outer ring 43 with larger diameter than the coil 1, and a plurality of spokes 44 joining the outer ring 43 to the hub 42.
• the end wall elements 40, 41 are provided with circular centring elements 45 which are concentric with the centre of the end wall elements 40, 41.
• the centring elements 45 have no function in the present case.
• the advantage is that such end wall elements 40, 41 with said central tube 38 can also be used for a parcel delivered to a work site and consisting of a relatively stable sleeve as core and coil of the object, the coil being held together by binding strips passing through the sleeve, whereby the parcel is centred to the end wall elements 40, 41 by their centring elements 45 which are in engagement with the inner side of the stable sleeve.
• the swivellable engagement arms 15 of the central part 9 are bevelled at their ends on the sides facing the tube 18 as described above, the bevelling being in agreement with the profile of the opposing surface of the centring element 45.
• the engagement arm 15 shall not be in contact at the time of use so that free movement of the engagement arms 15 from their rest positions is ensured.
• Said central tube 38 of the tool shown in Figure 7 in this case also forms a connecting element to join the end wall elements 40, 41 to each other, which occurs after the coil 1 with binding strips 3 is lowered down around the central part 9 with the engagement arms 15 folded in, in order to rest on the one end wall element 40, and the second end wall element 41 has been placed in position above the coil 1 and the central part 9 as seen in Figure 7.
• the central tube 38 is thus provided with a locking member comprising a fixed locking flange (not shown) at su ti fu SU l_l. 0 ⁇ ⁇ - J ⁇ su Hj Hi 0 Hi oo rr ⁇ - fi fi 3 3 ⁇ - 03 ⁇ ! ⁇ - CQ Hi rt O ⁇ - su H 0 tr SU ⁇ - rt
• the engagement members 15 of the central parts 9 described above can be folded out individually, i.e. the distance that each engagement member 15 can be folded out is independent of the other engagement member 15.
• FIGs 11-17 show schematically parts of a tool in accordance with another embodiment of the invention.
• the tool is designed to be brought into engagement with a coil 1 of the type shown in Figure 1.
• the tool intended for repeated use, comprises a central part or hub-forming device 9 for the coil 1, the central part 9 being inserted into the central hole 6 (see Figure 16) of the coil 1 to be activated for cooperation with the inner side 5 of the coil 1.
• the central part 9 In its non-activated state, therefore, the central part 9 has a cross-sectional dimension that is less than the smallest cross-sectional dimension of the central hole 6 so that the central part 9 can freely, that is to say easily and without difficulty, be inserted into and received by the central hole 6 of the coil 1.
• the central part 9 comprises an elongate, central, stable body 10 forming a stand with two opposite ends 11, 12 and defines a centre line 13 that extends through the ends 11, 12.
• the central part 9 also has a central bearing means 14, a plurality of peripheral engagement members 15, a carrying member 55 and a power member 16.
• the CO co to to M c ⁇ o UI o c ⁇ o Ul
• the tool in accordance with the invention has been described primarily for coils with deformed central openings, the cross section deviating from circular, the tool is equally suitable for use with coreless coils with circular central holes. Furthermore, the tool is equally suitable for use with coils having a circular-cylindrical sleeve forming a core around which the object is coiled.

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• Winding, Rewinding, Material Storage Devices (AREA)
• Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=20281580

Family Applications (1)

Country Status (4)

Families Citing this family (11)

Family Cites Families (5)

• 2000
  • 2000-10-27 SE SE0003899A patent/SE517500C2/sv not_active IP Right Cessation
• 2001
  • 2001-10-25 WO PCT/SE2001/002330 patent/WO2002034647A1/en not_active Application Discontinuation
  • 2001-10-25 EP EP01981222A patent/EP1334050A1/en not_active Withdrawn
  • 2001-10-25 AU AU2002212879A patent/AU2002212879A1/en not_active Abandoned

Non-Patent Citations (1)

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