US3843070A - Packaging coils - Google Patents

Packaging coils Download PDF

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Publication number
US3843070A
US3843070A US00310148A US31014872A US3843070A US 3843070 A US3843070 A US 3843070A US 00310148 A US00310148 A US 00310148A US 31014872 A US31014872 A US 31014872A US 3843070 A US3843070 A US 3843070A
Authority
US
United States
Prior art keywords
coil
laps
central eye
eye
radially
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.)
Expired - Lifetime
Application number
US00310148A
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English (en)
Inventor
G Reed
B Knox
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.)
British Iron and Steel Research Association BISRA
Original Assignee
British Iron and Steel Research Association BISRA
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
Application filed by British Iron and Steel Research Association BISRA filed Critical British Iron and Steel Research Association BISRA
Application granted granted Critical
Publication of US3843070A publication Critical patent/US3843070A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/24—Packaging annular articles, e.g. tyres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S242/00—Winding, tensioning, or guiding
    • Y10S242/91—Convolution tightener or loosener

Definitions

  • an inflatable annulas insertable, prior to inflation, in the eye of the, coil for subsequent inflation to grip the innermost lap, and rotation relative to the coil in a direction so as to tighten the inner laps.
  • Means such as deformable lap-engaging clips or an annular selflocking eye liner; are provided for retaining the inner laps in their tightened condition after the inflatable annulas has been deflated and removed from the eye of the coil.
  • This invention stems from the realisation that it is a problem if the inner laps of the coil are not tight against one another. Looseness of the inner laps may result in the protective coating on the ends of the coil becoming damaged as the coil is lifted by a lifting arm passed through the eye. Any such damage diminishes the ability of the protective coating to prevent corrosion.
  • a method of packaging a coil of sheet material includes the steps of inserting a I radially expandable member into the eye of the coil, ex-
  • the radially expandable member is preferably expanded by being inflated, and preferably when expanded' grips the inner lap through 360.
  • the apparatus 8 is placed within the eye 4 of the coil 6 as shown in FIGS. 2 and 3, a U"-shaped metal clip 22
  • the inner laps can be secured in the tightened condition by any suitable means.
  • the inner laps are retained in the tightened condition by inserting a deformable clip between the eye of the coil and some of said inner laps prior to tightening them and deforming that part of the clip which is located in the eye intocontact with the innermost lap of the coil after the inner laps have been tightened.
  • FIG. 1 shows an end view of a coil of sheet steel
  • FIG. 2 shows an enlarged view of the eye of the coil of FIG. I with apparatus for carrying out the method of the invention
  • FIGS. 3 and 4 show cross-sections through the coil and the apparatus of FIG. 2
  • FIGS. 5 and 6 show a plan and side view of a detail of a possible form of securing device for the inner laps.
  • the inner laps 2 at the eye 4 of a coil 6 of metal such as steel have a tendency to unwind so-that they are not up tight against one another as shown in FIGS. 1 and 2.
  • apparatus 8 is inserted into the eye 4.
  • the apparatus 8 includes a U sectioned metal ring 10 with the openside of the U directed outwardly in which is located a rubber tube 12 similar to those used as the inner tubes of motor car tyres.
  • the ring l0 is covered by abrasion resistant rubber or similar elastic protective material 14 which may be spirally wrapped around the ring.
  • the ring llfl has a diagonal cross-piece 16.
  • An air inlet tube 18 passes through the inner wall of the U"-sectioned ring 10, to which is connected an extension 20 having a quick release air valve 21 at its end for inflating the tube 12.
  • the tube 12 is then inflated so that it expands radially to grip the inner lap 2 throughout 360.
  • the crosspiece 16 By grasping the crosspiece 16 the ring it) is then rotated by hand in the direction clockwise in FIG. 2 opposite to that in which the laps have uncoiled, thus tightening the laps upon thus enabling the apparatus 8 to be withdrawn from the Y eye 4 of the coil.
  • FIGS. 5 and 6 show an alternative to the clip 22 for holding the inner laps 2 in their tightened condition.
  • metal band has opposite ends 26, .28 formed with saw teeth 30, 32 along each edge.
  • The: teeth 30'along one edge of the end 26 are aligned with the teeth along the opposite edge of the end 26, whereas the teeth 32 along one edge of the end 28 are offset with respect to the teeth along the opposite edge of the end 28.
  • the ends of the teeth are turned out of the plane of the band as shown in FIG. 6. It can be seen from FIGS. 5 and 6 that the teeth 30, 32 are shaped so that the ends 26, 28 can move apart relative to each other as shown by arrows P, but cannot move towards each other.
  • the band is formed into a-loop having a. circumference slightly less than that of the eye with the ends 26,
  • the apparatus 8 is disposed'in .the eye so-t'hat the loop surrounds it. Upon inflation of the apparatus 8 the circumference of the loop expands, this being allowed for by appropriate inclination of the teeth 30, 32. When the apparatus 8 is deflated and removed the teeth 30, 32 hold the loop in its expanded condition thus securing the inner laps in the tightened condition.
  • the coil 2 can thenbe packaged in any convenient way for example in the manner shown in British Patent No. 1,275,602 in which protective wrapping material is wound around the outside of the coil and protective material is sprayed on to the ends of the coil.
  • I 1 In a method of packaging an annular coil of sheet material having 'av plurality of laps defining a central eye, the steps of: inserting a radially expandable member into the central eye of the coil, inserting expandable locking means between said member and the central eye of the coil, radially expanding said member so that said locking means grips at least a part of the innermost lap of the coil, procuring relative rotation between said member and said locking means together with respect to the outer laps of the coil so as to tighten the inner laps of the coil and enlarge said central eye until the locking means expands to a locked condition within the central eye of the coil to retain said inner laps inthat tightened condition, and removing said expandable member from the central eye of the coil.
  • said expandable member comprises an inflatable annulus and including the step of inflating said annulus to grip the innermost lap of the coil as aforesaid. 6. A method according to claim 4 wherein said expandable member, when radially expanded, grips the.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Of Special Articles (AREA)
  • Basic Packing Technique (AREA)
US00310148A 1971-12-10 1972-11-28 Packaging coils Expired - Lifetime US3843070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5750171A GB1391179A (en) 1971-12-10 1971-12-10 Packaging coils

Publications (1)

Publication Number Publication Date
US3843070A true US3843070A (en) 1974-10-22

Family

ID=10479338

Family Applications (1)

Application Number Title Priority Date Filing Date
US00310148A Expired - Lifetime US3843070A (en) 1971-12-10 1972-11-28 Packaging coils

Country Status (6)

Country Link
US (1) US3843070A (fr)
BE (1) BE792529A (fr)
CA (1) CA969917A (fr)
FR (1) FR2164410A5 (fr)
GB (1) GB1391179A (fr)
IT (1) IT975946B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10370131B2 (en) * 2015-12-17 2019-08-06 Victor Manuel Quinones Apparatus and method for packaging coiled materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10370131B2 (en) * 2015-12-17 2019-08-06 Victor Manuel Quinones Apparatus and method for packaging coiled materials

Also Published As

Publication number Publication date
CA969917A (en) 1975-06-24
FR2164410A5 (fr) 1973-07-27
BE792529A (fr) 1973-03-30
IT975946B (it) 1974-08-10
GB1391179A (en) 1975-04-16

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