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CA2109559A1 - Steel roll protectors - Google Patents

Steel roll protectors

Info

Publication number
CA2109559A1
CA2109559A1 CA 2109559 CA2109559A CA2109559A1 CA 2109559 A1 CA2109559 A1 CA 2109559A1 CA 2109559 CA2109559 CA 2109559 CA 2109559 A CA2109559 A CA 2109559A CA 2109559 A1 CA2109559 A1 CA 2109559A1
Authority
CA
Canada
Prior art keywords
section
core
shield
edge
folding line
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.)
Abandoned
Application number
CA 2109559
Other languages
French (fr)
Inventor
Brian Jonathan O'sullivan
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
Application filed by Individual filed Critical Individual
Priority to CA 2109559 priority Critical patent/CA2109559A1/en
Publication of CA2109559A1 publication Critical patent/CA2109559A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/053Corner, edge or end protectors
    • B65D81/054Protectors contacting two generally perpendicular surfaces of the packaged article, e.g. edge protectors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/66Containers, packaging elements or packages, specially adapted for particular articles or materials for jumbo rolls; for rolls of floor covering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/02Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D2581/05Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D2581/051Details of packaging elements for maintaining contents at spaced relation from package walls, or from other contents
    • B65D2581/052Materials
    • B65D2581/055Plastic in general, e.g. foamed plastic, molded plastic, extruded plastic

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)

Abstract

ABSTRACT

This invention povides a plastic shield to protect an edge of a hollow core of a roll of sheet material from abrasion caused by one or more securing lines extending through the core and fastened to a deck upon which the roll is carried. The shield bends over the edge and around the circumferential core for a distance sufficient to cover a portion of the edge otherwise exposed to the securing lines.

Description

2 :~ ~ 9 ~ ~i 9 SHIELD FOR ROLLED SHEET IUIATERIAL -~

FIELD OF THE INVENTION
This invention relates to the protection of rolled sheet 5 material during transport, and, in particular, to a shielding device to protect such rolls from abrasion by fastening devices during transport.

BACKGROUND OF THE INVENTION :--In the discussion that follows the word "roll" will be used 10 to describe such a cylindrical bundle of sheet material. For example, material such as sheet steel manufactured in the shape of an elongated rectangle may be rolled up over its length to form a thick walled cylinder of overlapping layers. It then becomes more manageable during handling. In this specification a roll will be 15 considered to have an "exterior surface", being the curved portion of the outside of the roll cylinder; a "core", being a cylindrical hollow portion at the centre of the roll; an "interior surface", being the curved surface surrounding and defining the core; and "first and second ends", being the two flat ends of the roll cylinder. "First and second 20 edges" will be rolled material in close proximity to the interior surface and the first and second ends respectively. The "axis" of the roll will be a line through the centre of the core about which the rolled material was wound. The "height" of the roll will be the distance ;
between its first and second ends, the "interior diameter" will be the 25 ' diameter of the core and the outside "diameter" will be the diameter of the exterior surface.
~: .. . -Large heavy rolls of sheet material are often transported on vehicles from one place to another. These rolls are often bound ~, ~
30 with strapping through the core about the ends and over the exterior surface to retain their integrity during handling. When the rolls are 2 ~ 9 i~ 2 loaded for transport, it is common to lay them on their exterior surface. The curvature of the exterior surface facilitates movement of the rolls on the loading deck. Further, when the rolls are Iying on their exterior surface, loading cranes can insert a hook or bar into 5 the hollow core to pick up the rolls. Once the rolls are located on the deck of a vehicle, stops are wedged under the exterior surface to prevent them from rolling. Finally the rolls may be fastened down with chains, or the like, tha~ pass through the core and are secured to the deck at each end of the roll. The number of chains used to 1O fasten the roll in place will depend upon the weight of the roll but it is common to have three or more chains that are secured forward, rearward and in line with the axis of the roll.

During transportation on a vehicle, rolls may be shaken 15 and jostled. The securing chains resist movement by pulling in an opposite direction against the interior surface of the core particularly about the edges. Over a long journey frictional abrasion between the rolls and the chains can cause gouging and other damage that affects one or more layers of the rolled material from the interior 2 O surface outwards. In severe cases, there may also be telescoping of the roll where adjacent layers of the rolled material slide against ; one another in the direction of the axis of the roll. Telescoping can expose greater areas to damage from the chains, expose more material to the elements and create handling problems.
In the prior art a number of attempts have been made to reduce the damage to rolls from chains. One prior art device is a large metal ring which is fitted into the core about the edges. The chiains are then led through the rings and are thus separated from 3 O the edges and held above th0 interior surface to protect same from ~ . .
:

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3 ~ ~
. .
chain abrasion. These large metal rings suffer the disadvantage that they must be manufactured to the correct size to fit into the core of a roll. However, core diameters may be different for different sheet materials, different material thicknesses etc., and, even if these 5parameters are constant, there may be a wide tolerance in the core diameter from roll to roll as a result of the rolling process.
Consequently, a manufacturer of such rings must make many sizes, thereby increasing costs and inventory. The rings are cumbersome to use and store and the fit may be imperfect in spite of the 10manufacturer's efforts.

The problem of the rings has been addressed by partial shields which encircle only part of the circumference of the edges of the core. All such partial shields known to the inventor are 15manufactured from metal in order to withstand the severe stresses and high bearing forces of the chains required to secure large rolls.
These metal partial shields are relatively rigid are therefore do not readily conform to the size of the interior surface of the core. Being metai of sufficient thickness to withstand the chain abrasion, such 20shields are also ciapable of cutting or injuring an operator if dropped or mishandled.
..
It is an object of the present invention to manufacture an improved partial shield for large heavy rolls of sheet rnaterial to 25protect same from abrasion from securing chains or the like. It is .- ~.
~ also an object of this invention to manufacture a partial shield of a ;~ novel construction fabricated of plastic, which will provide adequate protection while being economical, flexible, adaptable, safe and -convenient to use .
3 0 ` ~ :

. . .. .

~ C~ `

l~ 2109~;j9 GENERAL DESCRIPTION OF THE INVENTION
The present invention is a plastic shield to protect a portion of an edge of a core of a roll of sheet material from abrasion of one or more securing lines extending through said core and 5 exerting restraining forces against said portion; said shield comprising a first section curved to fit into said core having a length to cover at least said portion, and having a width to extend a short distance into the core to lie on an interior surface of said edge; and a second section integrally joined to said first section along a lengthwise folding 10 line and having a plurality of parts divided by cuts extending through the second section perpendicular to said folding line, said parts being folded at said folding line at an approximate right angle to said first section to abut against an end surface of the edge and having a width to cover said edge.
The shield may be fabricated from high molecular weight, high density polyethylene. The thickness of the material will depend upon the size of the rolls and the forces to be expected from the securing chains. However, it is expected that the thickness will be 2 0 of the order of about 1 centimetre. The length of the shield is usually about 1/3 of the circumference of the core. A sheet of plastic may be cut into strips having one dimension equal to desired length. Then pieces having a dimension equal to the combined width of the first and second sections may be cut from each strip. A
25 lengthwise folding line may divide such a piece into a first section and a second section. The width of second section in a preferred embodiment is about 1/3 the width of the first section but the relative widths will be a matter of choice. Cuts may be made from the folding line across the second section to divide it into a plurality of 30 parts. The cuts may terminate in a hole drilled a the folding line to ~ ' .

, . . .. . .

2 1 ~ 9 ~ 5 ~3 reduce stress concentration during bending. The parts are then folded along the folding line at right angles to the first section and the first section is curved to fit the core thereby separating the parts.

A shield may be inserted into a core to lie on the interior surface of a bottom portion of the edge and to abut an end. -Because the shield is plastic it will readily conform to the curvature of the core. Both ends of a roll are thus protected. Securing lines 10 brought through the core to secure the roll to the deck of a vehicle are laid onto the shields and then secured to the deck. Thereafter, when the transport means is moved to another location, the plastic shields receive the restraining forces of the securing lines and protect the rolled material from abrasion and damage.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In the Figures which illustrate the preferred embodiment of this invention, Figure 1 is a view of a flat sheet of plastic having the 20 locations of cuts and folds marked upon it.
Figure 2 is an illustration of the plastic shield after it is cut and bent. ~:
Figure 3 is a side view illustrating how the parts are at approximate right angles to the main body of the plastic sheet.
In the Figures which illustrate the preferred embodiment of this invention, like numerals represent like elements.

As shown in Figure 1, the plastic shield (1 ) of this 30 invention is fabricated from a rectangular sheet of high molecular ~ :- - '-~ -:

6 ~.L~39.~
weight high density polyethylene having a width (2) and a length (3).
The thickness (6) of the plastic sheet is approximately 1 centimetre (See Fig. 3). The first section (4) and second section (5) are divided by folding line (7). Cutting lines (8), (9) and (10) extend 5 perpendicularly from folding line (7) across the second section (5).
Holes (11), (12) and (13) are located along folding line (7) at the intersection points of the cutting lines (8), (9) and (10) to reduce stress concentration during separation of the parts (14), (15) and (16) and (17) the first section (4) is bent into a curvature as shown in 10 Figure 2.

Figure 2 shows the shield after cut lines (8), (9) and (10) ; have opened up during bending along folding line (7) and curvature.
As illustrated in Figure ,3 pans (14), (15), (16) and (17) are bent to 15 an approximate right angle to the first section (4).
.,.~

In operation, the shield is placed inside the core of a roll so that the first section (4) lies within the core and the parts (14), (15), (16) and (17) depend against an end of the roll. Parts (14) 20 through (17) help secure the shield to the edge also help oppose any telescoping effect. The securing lines are placed through the core over the shields at either end of the roll. The force of securing lines is then taken up largely by the shield. Holes (11), (12) and (13) may help to locate the chains during the fastening procedure. The 25 holes will be bent over with the second section sufficiently to ensure that the thickness (6) prevents securing lines from touching the edge of the roll at the location of the holes.

~ ! , . 2 1 0 9 3 ~

Claims:

1. The present invention is a plastic shield to protect a portion of an edge of a core of a roll of sheet material from abrasion of one or more securing lines extending through said core and exerting restraining forces against said portion; said shield comprising a first section curved to fit into said core having a length to cover at least said portion, and having a width to extend a short distance into the core to lie on an interior surface of said edge; and a second section integrally joined to said first section along a lengthwise folding line and having a plurality of parts divided by cuts extending through the second section perpendicular to said folding line, said parts being ~-`
folded at said folding line at an approximate right angle to said first - section to abut against an end surface of the edge and having a width to cover said edge.
`~.'.'~' '.
2. The shield of Claim 1 fabricated from high molecular weight high density polyethylene.
~ " ,.~:
1`: 20 3. The shield of Claims 1 or 2 in which the cuts in the -- `' I
second section terminate in holes at the folding line. ;~ -4. The shield of Claims 1 or 2 in which the cuts in the ~ ~-` i second section terminate in holes in the second section having the .
; ~ 25 foWing line as a tangent. W -~
' ~

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Claims (4)

1. The present invention is a plastic shield to protect a portion of an edge of a core of a roll of sheet material from abrasion of one or more securing lines extending through said core and exerting restraining forces against said portion; said shield comprising a first section curved to fit into said core having a length to cover at least said portion, and having a width to extend a short distance into the core to lie on an interior surface of said edge; and a second section integrally joined to said first section along a lengthwise folding line and having a plurality of parts divided by cuts extending through the second section perpendicular to said folding line, said parts being folded at said folding line at an approximate right angle to said first section to abut against an end surface of the edge and having a width to cover said edge.
2. The shield of Claim 1 fabricated from high molecular weight high density polyethylene.
3. The shield of Claims 1 or 2 in which the cuts in the second section terminate in holes at the folding line.
4. The shield of Claims 1 or 2 in which the cuts in the second section terminate in holes in the second section having the folding line as a tangent.
CA 2109559 1993-11-19 1993-11-19 Steel roll protectors Abandoned CA2109559A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2109559 CA2109559A1 (en) 1993-11-19 1993-11-19 Steel roll protectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2109559 CA2109559A1 (en) 1993-11-19 1993-11-19 Steel roll protectors

Publications (1)

Publication Number Publication Date
CA2109559A1 true CA2109559A1 (en) 1995-05-20

Family

ID=4152511

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2109559 Abandoned CA2109559A1 (en) 1993-11-19 1993-11-19 Steel roll protectors

Country Status (1)

Country Link
CA (1) CA2109559A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001044078A1 (en) * 1999-12-13 2001-06-21 Via Ison Limited Packaging of sheet metal coils

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001044078A1 (en) * 1999-12-13 2001-06-21 Via Ison Limited Packaging of sheet metal coils

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Legal Events

Date Code Title Description
FZDE Dead