U.S. patent application number 15/566008 was filed with the patent office on 2018-05-03 for coil protector, method and kit therewith.
The applicant listed for this patent is Pulse Plastics Ltd. Invention is credited to Ian Jones.
Application Number | 20180118449 15/566008 |
Document ID | / |
Family ID | 53333643 |
Filed Date | 2018-05-03 |
United States Patent
Application |
20180118449 |
Kind Code |
A1 |
Jones; Ian |
May 3, 2018 |
COIL PROTECTOR, METHOD AND KIT THEREWITH
Abstract
The present invention provides a protector for protecting a
steel coil having an outer curved surface, an inner core surface
and a sidewall located there between, the protector comprising a
first member adapted for engagement with a coil core; and a second
member adapted for engagement with a coil outer surface. The
invention further provides a protector for protecting a steel coil
having an outer curved surface, an inner core surface and a
sidewall located there between, the protector comprising a first
member having a coil core guard; and a second member having a coil
belly guard, wherein, in use, the coil core guard is located
adjacent the coil core and the coil belly guard is located adjacent
the coil outer surface, both the first and second members being
adjacent the coil sidewall. Also provided is a method of protecting
a steel coil from damage, the steel coil comprising the steps of
providing a protector according to an aspect of the present
invention; locating the first member adjacent a coil core; and
locating the second member adjacent a coil outer surface.
Inventors: |
Jones; Ian; (Tredegar Gwent,
GB) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Pulse Plastics Ltd |
Blackwood |
|
GB |
|
|
Family ID: |
53333643 |
Appl. No.: |
15/566008 |
Filed: |
April 12, 2016 |
PCT Filed: |
April 12, 2016 |
PCT NO: |
PCT/GB2016/051016 |
371 Date: |
October 12, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B65D 2581/057 20130101;
B65D 85/04 20130101; B21C 47/24 20130101; B65D 85/66 20130101; B65D
81/054 20130101 |
International
Class: |
B65D 85/66 20060101
B65D085/66; B65D 81/05 20060101 B65D081/05; B65D 85/04 20060101
B65D085/04; B21C 47/24 20060101 B21C047/24 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 12, 2015 |
GB |
1506166.6 |
Claims
1. A coil guard for protecting a steel coil having a belly, a bore
and a face located therebetween, the coil guard comprising a first
member adapted for engagement with the surface of a coil bore; and
a second member adapted for engagement with the surface of a coil
belly.
2. A coil guard according to claim 1, wherein the first member
comprises a coil bore guard for engagement with a coil bore and a
coil face guard for engagement with a coil face.
3. A coil guard according to claim 1, wherein the second member
comprises a coil belly guard for engagement with the surface of a
coil belly and a coil face guard for engagement with the surface of
a coil face.
4. A coil guard according to claim 1, wherein the coil guard
further comprises inter-engagement means adapted to engage both the
first and second members.
5. A coil guard according to claim 4, wherein the inter-engagement
means comprises a first portion located adjacent the first member
and a second portion located adjacent the second member, the first
and second portions being adapted for complementary
inter-engagement with each other to secure the first member to the
second member.
6. A coil guard according to claim 5, wherein the complementary
inter-engagement portions are adapted for reversible
inter-engagement with one another.
7. A coil guard according to claim 5, wherein the inter-engagement
means comprises inter-engaging hooks and loops.
8. A coil guard according to claim 5, wherein the first and second
portions of the inter-engagement means are adhered to the first and
second members respectively.
9. A method of protecting a steel coil from damage, the steel coil
comprising the steps of: a. Providing a coil guard according to
claim 1; b. Locating the second member adjacent the surface of a
coil belly; and c. Locating the first member adjacent the surface
of a coil bore.
10. A method according to claim 10 further comprising the steps of:
d. Providing inter-engagement means adapted to engage both the
first and second members; and e. Connecting the first and second
members to one another using the inter-engagement means.
11. A method according to claim 10, wherein the inter-engagement
means comprises a first portion located adjacent the first member
and a second portion located adjacent the second member such that
locating the first member adjacent the surface of a coil bore
brings the first and second portions of the inter-engagement means
into engagement with one another.
12. A coil guard kit comprising a coil guard according to claim 1,
wherein the coil face guard of the second member extends from the
coil belly guard for a distance X, and wherein the coil guard kit
further comprises an additional second member having a coil face
guard that extends from the coil belly guard for a distance X',
wherein the distance X' is greater than the distance X.
Description
[0001] The present invention relates to a steel coil guard for
protecting a steel coil from damage, for example during
post-delivery on-site handling. The present invention also provides
a method of protecting a steel coil using a steel coil guard
according to the present invention.
[0002] Steel coils are very heavy objects that are difficult to
lift, handle and transport. Overhead cranes with large hooks, large
fork lifts and other heavy duty lifting equipment is used to move
the coils, both during delivery from supplier to customer and also
during on-site movement of the coil post-delivery. Operators of
such equipment are skilled in lifting, moving and positioning of
heavy loads. However, despite considerable skill and attention, it
is common for the surfaces and edges of the coils to suffer damage
from contact with the equipment. In particular, the steel coil-eye
and coil edges may suffer damage from the chains, hooks or forks
passed through the coil during movement. Further damage to the coil
may occur due to the coils be scraped or bumped whilst being
handled. This may happen as a result of momentary inattention on
the part of the lifting equipment operator, poor sight lines
between the operator and the steel coil, or accidentally bringing
the coil into contact with damaging surfaces such as walls etc. in
the immediately vicinity where the steel coil is being handled.
Such damage includes dents, impressions and abrasions to the
surfaces of the steel coil, which may render the steel wholly or
partially unusable, creating expensive waste materials and an
associated loss of income.
[0003] Often, lifting of the coils involves the use of chains run
through the coil-eye and secured tightly with binders.
Alternatively, a lifting crane hook may swing out of control or
swing wider than intended by the operator when approaching the coil
to be moved, thereby scraping the top wall, upper edge and side
wall surfaces of the coil before being properly located secured in
place within the steel coil-eye or inner diameter. This can result
in physical damage to the steel as well as deterioration in the
appearance and quality of the steel and potentially rendering it
unusable.
[0004] One solution to this is to package the steel coil prior to
transportation. This is the usual practice when transporting coils
from the supplier to the customer. For example, narrow edge
protectors are often applied to the top edge of the coil and are
held in place by wrapping the coil in plastic. However, these edge
protectors are small in size and intended only to protect the coil
from damage at the coil edge. They do not cover or protect the
surfaces of the steel coil that may be impacted by unintentional
contact with heavy duty machinery during handling. Furthermore, as
they are held in place relative to the coil by the application of
plastic wrapping, they are impractical for use once the coil is
on-site and the wrapping removed.
[0005] There is therefore a need for a device to protect the steel
coil bore, edges and faces from damage during lifting, handling and
movement, particularly on-site, post-delivery.
[0006] The present invention seeks to address the problems of the
prior art.
[0007] Accordingly, a first aspect of the present invention
provides a coil guard for protecting a steel coil having a belly, a
bore and a face located therebetween, the coil guard comprising a
first member adapted for engagement with the surface of a coil
bore; and a second member adapted for engagement with the surface
of a coil belly.
[0008] In use, the first member is arranged to shield at least a
portion of the coil bore, often referred to as the coil-eye. The
main portion of the coil bore surface to protect is the upper
surface of the coil bore. This is a part of the coil that is
supported by chains passed through the coil bore or a crane hook or
a forklift fork when the coil is being handled, and is therefore at
significant risk of damage. The first member acts to shield the
coil bore upper surface from damage resulting from chains, hooks or
forks scraping or carelessly engaging with the coil bore during
use. In addition, the first member acts to prevent damage to the
surface of the coil bore that may be caused as a result of force
applied to the bore surface by chains, hooks or forks under the
weight of the coil when being lifted.
[0009] In use, the second member is arranged to shield at least a
portion of the surface of the coil belly. The main portion of the
coil belly surface to protect is the portion of the belly located
at 10 o'clock to 2 o'clock i.e. the upper quarter quadrant of the
coil. This is another part of the coil that is at significant risk
of damage during handling. For example, when a crane hook is swung
towards the coil it may accidentally impact the coil if the hook is
swinging out of control or the line of sight is obscured between
the coil and the crane operator. The second member acts to absorb
any impact to the protected coil belly surface, thereby minimising
or preventing consequential damage to the coil.
[0010] In one embodiment, the first member comprises a coil bore
guard for engagement with a coil bore and a coil face guard for
engagement with a coil face. By extending over at least a portion
of the coil face, the first member is protecting not only a portion
of the upper surface of the coil bore, but also an adjacent portion
of the surface of the coil face and the coil edge therebetween. The
coil edge adjacent the coil bore is an area of the coil that can be
damaged during the lifting process on insertion of chain, crane
hook or fork-lift fork into the coil bore. Protection of the coil
edge adjacent the coil bore by the first member will minimise or
prevent impact damage to the coil edge as well as aesthetic scrape
or dent damage to the surface of the coil face beneath the coil
face guard.
[0011] In a further embodiment, the second member comprises a coil
belly guard for engagement with the surface of a coil belly and a
coil face guard for engagement with the surface of a coil face. By
extending over at least a portion of the coil face surface, the
second member is protecting not only a portion of the coil belly
surface, but also an adjacent portion of the coil face surface and
the coil edge therebetween. The coil edge adjacent the coil belly
surface is an area of the coil that is at significant risk of being
damaged during the movement of the coil if the coil is accidentally
bumped against any machinery or masonry during the lifting process.
In addition, where the coil is suspended from chain during the
lifting process, the chain can damage the coil edge adjacent the
coil belly due to force applied to the coil edge by the chain under
the weight of the coil itself.
[0012] Preferably, the coil guard further comprises engagement
means adapted to engage both the first and second members. In this
way, the first and second members can be held spatially relative to
one another and the coil. This facilitates ease of application of
the protector to the coil, in use.
[0013] In one embodiment, the engagement means comprises a first
portion located adjacent the first member and a second portion
located adjacent the second member, the first and second portions
being adapted for complementary engagement with each other to
secure the first member to the second member.
[0014] Preferably, the first and second portions comprise
complementary engagement portions adapted for reversible engagement
with one another to retain the first and second members in place
relative to one another. The engagement portions preferably
comprise a Velcro.RTM. material or similar inter-engaging hooks and
loops. However, it is to be appreciated that the complementary
engagement portions may comprise a snap-fit fastening, a belt
fastening, a buckle fastening, a ratchet fastening or any other
engagement means known to the skilled person and suitable for
reversibly attaching the first and second portions together.
[0015] Preferably, the first and second portions of the engagement
means are adhered to the first and second members respectively. In
this way, contacting the first and second portions together will
result in securing of the first and second members together.
[0016] Alternatively, the complementary engagement portions may be
adapted for irreversible engagement with one another. For example,
a cable tie arrangement or similar irreversible engagement means
may be used. When removal of the protector from the coil is
required, the engagement means may be simply cut or otherwise
damaged to release the protector from the coil and a new engagement
means used on the next occasion that the protector is applied to a
coil.
[0017] Alternatively, the engagement means may comprise a first
portion adapted for connection to either of the first or second
members. The engagement means may then be connected to itself so as
to hold the first and second members in special relationship to
both one another as well as hold the protector securely in place
relative to the coil.
[0018] In one embodiment, the engagement means is adapted to extend
through the coil core and around the coil outer surface. In this
way, the first and second members will be held securely in place
relative to both the coil and to one another.
[0019] A second aspect of the present invention provides a coil
guard for protecting a steel coil having a belly, a bore and a face
located therebetween, the coil guard comprising: a first member
having a coil bore guard adapted for engagement with a surface of a
coil bore and a coil face guard adapted for engagement with a
surface of a coil face; and a second member having a coil belly
guard adapted for engagement with a surface of a coil belly and a
coil face guard adapted for engagement with a surface of a coil
face, wherein the first and second members include first and second
engagement means respectively, the first engagement means being
releasably engageable with the second engagement means, and wherein
the coil guard has a closed configuration in which the first and
second members partially overlap with one another and the first
engagement means is engaged with the second engagement means, and
an open configuration in which the first and second members are
separated from one another such that the first engagement means is
not engaged with the second engagement means.
[0020] In one embodiment, when the coil guard is in the closed
configuration, one or both coil face guards of the first and second
members, respectively, only extend across a part of the coil face
surface.
[0021] In a further embodiment, one of the first and second
engagement means comprises a plurality of hooks and the other of
the first and second engagement means comprises a plurality of
loops.
[0022] Preferably, the first and second engagement means are
adhered to the first and second members accordingly. However, it is
to be appreciated that first and second engagement means may be
engaged to the first and second members by any suitable means known
to the skilled person including, but not limited to, bonding,
screwing, snap fit fastened or may be integrally moulded with the
respective first or second member.
[0023] A third aspect of the present invention provides a method of
protecting a steel coil from damage, the steel coil comprising a
belly, a bore and a face located therebetween, the method
comprising the steps of:
[0024] a. Providing a coil guard according to a first or second
aspect of the present invention;
[0025] b. Locating the second member adjacent the surface of a coil
belly; and
[0026] c. Locating the first member adjacent the surface of a coil
bore.
[0027] In one embodiment, the method further comprises the steps
of:
[0028] d. providing engagement means adapted to engage both the
first and second members; and
[0029] e. connecting the first and second members to one another
using the engagement means.
[0030] In a further embodiment, the engagement means comprises a
first portion located adjacent the first member and a second
portion located adjacent the second member such that locating the
first member adjacent the surface of a coil bore brings the first
and second portions of the engagement means into engagement with
one another.
[0031] A fourth aspect of the present invention provides a method
of protecting a steel coil from damage, the steel coil comprising a
belly, a bore and a face located therebetween, the method
comprising the steps of:
[0032] a. Providing a coil guard according to a first or second
aspect of the present invention;
[0033] b. Locating the second member adjacent the surface of a coil
belly; and
[0034] c. Locating the first member adjacent the surface of a coil
bore such that the first and second members partially overlap with
one another and the first engagement means is engaged with the
second engagement means.
[0035] A further aspect of the present invention provides a coil
guard kit comprising a coil guard according to a first or second
aspect of the present invention, wherein the coil face guard of the
second member extends from the coil belly guard for a distance X,
and wherein the coil guard kit further comprises an additional
second member having a coil face guard that extends from the coil
belly guard for a distance X', wherein the distance X' is greater
than the distance X.
[0036] An embodiment of the invention will now be described, by way
of example only, and with reference to the accompanying drawings,
in which:
[0037] FIG. 1 is a perspective view of a steel coil provided with
an embodiment of a coil protector in accordance with a first aspect
of the present invention;
[0038] FIG. 2 is a cross-sectional view through the steel coil and
coil guard of FIG. 1;
[0039] FIG. 3 is a cross-sectional view through a smaller steel
coil provided with a second embodiment of a coil protector in
accordance with a first aspect of the present invention;
[0040] FIGS. 4A, 4A' are perspective views of the second member of
the coil guard of FIG. 2 and the coil guard of FIG. 3,
respectively, from a first side, FIGS. 4B, 4B' are perspective
views of the second member of the coil guard of FIG. 2 and the coil
guard of FIG. 3, respectively, from a second opposing side; and
[0041] FIG. 5A is a perspective view of the first member of the
coil guard of FIGS. 2 and 3, from a first side; and FIG. 5B is a
perspective view of the first member of the coil guard of FIGS. 2
and 3, from a second opposing side.
[0042] Throughout the figures, the same reference numbers have been
used to refer to the same features.
[0043] FIG. 1 shows a steel coil 10 defining a coil bore 14 having
a surface 16. Steel coil 10 further comprises a face 12 and a belly
18. A first core edge 15 is defined at the junction of coil bore
surface 16 and coil face 12 and a second core edge 17 is defined at
the junction of the surface of coil belly 18 and coil face 12.
[0044] Coil guard 20 comprises a first member 22 and a second
member 32.
[0045] First member 22 is shown in more detail in FIGS. 2, 3 and
4C. First member 22 comprises a coil core guard 24 for location
adjacent a portion of the coil core surface 14 and a coil sidewall
guard 26 for location adjacent a portion of the coil sidewall 12.
Coil core guard 24 and soil sidewall guard 26 are substantially
perpendicular to one another and define an edge guard 25
therebetween, such that, in use, edge guard 25 is located adjacent
first core edge 15.
[0046] First member 22 further comprises Velcro.RTM. type loop pads
29 adhered to the surface of sidewall guard 26.
[0047] FIGS. 1, 2, 4A and 4B show a large version of the second
member 32 and FIGS. 3, 4A' and 4B' show a smaller version--the
selection of which version to use will depend on the diameter of
the steel coil to be protected. Larger coils i.e. coils with larger
diameters of, for example, 8 feet, will require the larger version
of the second member in order that the second member may extend
sufficiently across the sidewall 12 to still overlap with first
member 22. However, the larger version will be too big to be a good
fit on smaller coils i.e. coils with a smaller diameter of, for
example, 2 feet, and so a smaller version of the second member 22
may be used instead. These two versions of second member 32 are
intended for use on steel coils with a standard range of coil
diameters. However, it is to be appreciated that first and second
members 22, 32 may be of any suitable dimensions to allow their use
with steel coils of various selected diameters.
[0048] Conventional steel coils are manufactured with standard coil
bore sizes, with the coil bore diameter being 406 mm (16 inches),
508 mm (20 inches) or 610 mm (24 inches). These sizes correspond to
the dimensions of the machinery etc. that handles the coils during
on-site processing.
[0049] For example, the dimensions of the first member 22 that
should be used will depend on the diameter of the coil bore i.e.
the first member may correspond to a bore size of 406 mm, 508 mm or
610 mm, depending on the requirement of the customer and the
dimensions of their coil handling/processing equipment. However,
the dimension of the second member 32 selected for use is selected
depending on the diameter of the coil--the second member 32
selected needs to extend sufficiently across the coil sidewall to
allow overlap with the first member 22. However, it cannot be too
big as it would interfere with the fitting of the second member 22
if it extended past the first core edge 15.
[0050] Second member 32 comprises a coil belly guard 34 for
location adjacent a portion of the coil outer surface 16 and a coil
sidewall guard 36 for location adjacent a portion of the coil
sidewall 12. Coil belly guard 34 and soil sidewall guard 36 are
substantially perpendicular to one another and define an edge guard
35 therebetween, such that, in use, edge guard 35 is located
adjacent second core edge 17.
[0051] As can be seen in FIGS. 4B, 4B', second member 32 is further
provided with Velcro.RTM. style hook pads 40 adhered to the outer
surface of coil face guard 36 i.e. on the opposite surface to that
contacting the coil face 12, in use.
[0052] In use, second member 32 is positioned in place relative to
coil 10, as shown in FIGS. 2 and 3 such that coil belly guard 34
contacts coil belly 18, coil edge guard 35 contacts coil edge 17
and coil face guard 36 contact coil face 12, with Velcro like pads
40 facing away from coil 10. Second member 32 should be positioned
on coil 10 in the upper quadrant, sometimes referred to as the
10-to-2 o'clock position (making reference to the time on an
analogue clock face), as shown in FIG. 1. This quadrant of the coil
10 is the part of the coil 10 that is exposed to the greatest
likelihood of damage during handling of the coil post-delivery.
Once second member 32 is in place, first member 22 is positioned in
place relative to coil 10, as shown in FIGS. 2 and 3, such that
coil bore guard 24 is located adjacent coil bore 14, coil edge
guard 25 is located adjacent coil edge 15 and coil face guard 26 is
located adjacent coil face 12. As can be seen from the figures, the
first and second members 22, 32 partially overlap with one another
such that engagement means (loop pads 29 and hook pads 40) are
brought into contact with one another. Once in place, Velcro type
loop pads 29 make contact with and engage with corresponding Velcro
type hook pads 40 of second member 32, thereby securing first
member 22 to second member 32, and securing both members in place
relative to coil 10.
[0053] Once secured in place, the coil may be safely moved using
conventional heavy duty lifting equipment. The coil guard 20
protects the coil belly 18, coil face 12 and coil bore 14 from
damage from chain, crane hook or fork-lift fork impact, or impact
of the coil 10 against any surrounding surfaces during the handling
process.
[0054] Once the coil 10 has been moved to the desired location and
the heavy duty lifting equipment removed from the coil bore 14, the
coil guard 20 may be easily removed from the coil 10 by applying
force to the first member 22 to loosen the attachment between loop
pads 29 of first member 22 and hook pads 40 of second member 32,
thereby allowing first member 22 to be disengaged from second
member 32 and removal from coil 10. Second member 32 can then be
simply lifted away from coil 10, leaving the coil in an undamaged
state and available for onward processing, while the coil guard 20
may be easily reused to protect another coil 10 requiring
handling.
[0055] Thus, the coil guard 20 has a closed configuration in which
the first and second members 22, 32 partially overlap with one
another and the first engagement means 29 is engaged with the
second engagement means 40. Further, the coil guard 20 has an open
configuration in which the first and second members 22, 32 are
separated from one another such that the first engagement means 29
is not engaged with the second engagement means 40.
[0056] When the coil guard 20 is in the closed configuration, one
or both of the coil face guards of the first and second members 22,
32, respectively, only extend across a part of the coil face
surface.
[0057] Plastic is not normally used as a material for protecting
coils as it is often not strong enough to bear the weight and
stresses is would be exposed to during the coil handling process.
However, as can be seen from the figures, first and second members
22, 32 of coil guard 20 are provided with ribs. These ribs 60 serve
to strengthen the structure of the first and second members such
that they are strong enough to use to protect the coil 10 during
the handling process without cracking or disintegrating under the
applied stresses. This allows a relatively light weight two part
plastic coil guard to be used during the handling process that is
easily lifted and manipulated into place by a single operator,
without strain to the operator.
[0058] Coil guard 20 may comprise any suitable plastic, including,
but not limited to high density polyethylene (HDPE) or
polypropylene (PP).
[0059] In addition, the ease with which the second member 32 and,
subsequently, the first member 22 may be accurately fitted to the
coil 10 during use makes the process of preparing a coil 10 for
handling efficient and straightforward. Further, the use of large
hook and loop pads to connect the first and second members to one
another to secure them in place relative to the coil allows for
adjustment of the engagement between the first and second members
22, 32 to accommodate variation in the diameters of the coils 10
being handled. It will be appreciated that the first and second
members 22, 32 may be engaged such that the distance between coil
bore guard 24 and coil belly guard 34 may differ depending on the
level of overlap between loop pads 29 and hook pads 40 on
engagement of the first and second members 22, 32.
[0060] A well-known problem experience in the prior art when using
any type of plastic protector adjacent the coil face 12 is that any
rubbing of the plastic against the coil face 12 during handling of
the coil 10 can result in a layer of plastic rubbing off on the
edges of the coil 10. This is particularly undesirable
contamination of the steel of the coil 10, is detrimental to the
ongoing processing of the steel and can render the coil unusable,
thereby leading to expensive wastage of steel.
[0061] However, in the case of the present application, lifting of
the coil 10 with a fitted coil guard 20 only serves to solidly
secure the first member 22 in place relative to the second member
32 and to securely retain the coil guard 20 in place relative to
the coil 10 due to the weight of the coil 10 on the coil bore guard
24 of first member 22 during lifting of the coil 10. This means
that there is no rubbing between the coil face guards 26, 36 of
first and second members 22, 32, respectively, and therefore no
undesirable deposition of plastic residue on the coil face 12
during handling of the coil 10 when coil guard 20 is in place.
[0062] Although aspects of the invention have been described with
reference to the embodiment shown in the accompanying drawings, it
is to be understood that the invention is not limited to the
precise embodiment shown and that various changes and modifications
may be effected without further inventive skill and effort. For
example, it will be appreciated that where the coil is lifted using
a fork-lift fork, a coil guard need only be fitted to one side of
the coil i.e. the side of the coil from which the fork approaches
the coil bore. However, if a chain is fed through the coil bore for
lifting or a crane hook is inserted through the coil bore then it
may be desirable to fit a coil guard according to the present
invention to each side of the coil in order to protect the edges,
belly and faces of the coil on both sides from damage during
handling.
* * * * *