U.S. patent application number 12/836177 was filed with the patent office on 2011-02-03 for gloves for handling barbed wire.
This patent application is currently assigned to Ansell Limited. Invention is credited to Todd R. Carroll, Lee Khommanyvong.
Application Number | 20110023212 12/836177 |
Document ID | / |
Family ID | 43525582 |
Filed Date | 2011-02-03 |
United States Patent
Application |
20110023212 |
Kind Code |
A1 |
Carroll; Todd R. ; et
al. |
February 3, 2011 |
Gloves for Handling Barbed Wire
Abstract
Gloves for handling razor sharp materials such as barbed tape,
barbed wire, razor wire, concertina wire comprise a liner for a
hand; an outer shell affixed to the liner; and a plurality of metal
fasteners on a palm-side of the outer shell configured in a
substantially staggered arrangement. Such gloves can comprise a cut
resistant liner for a hand comprising a body yarn knitted to form
four finger components, a thumb component, at least two palm
components, and a wrist component, wherein the body yarn comprises
a cut resistant fiber, a wire, or both; an outer shell comprising
leather that forms digits, a palm-side, a knuckle-side, and a cuff
such that the outer shell is affixed over the cut resistant liner;
a palm patch affixed to the palm-side of the outer shell; a first
plurality of staples on the palm patch configured to provide a
substantially staggered arrangement; a second plurality of staples,
a cut resistant seam, or both along the periphery of the glove; and
a third plurality of staples on one or more digits of the outer
shell.
Inventors: |
Carroll; Todd R.;
(Guntersville, AL) ; Khommanyvong; Lee; (Rockwell
City, IA) |
Correspondence
Address: |
Moser IP Law Group / Ansell Limited
1030 Broad Street, Suite 203
Shrewsbury
NJ
07702
US
|
Assignee: |
Ansell Limited
Richmond
AU
|
Family ID: |
43525582 |
Appl. No.: |
12/836177 |
Filed: |
July 14, 2010 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61229712 |
Jul 29, 2009 |
|
|
|
Current U.S.
Class: |
2/161.6 ;
2/164 |
Current CPC
Class: |
A41D 19/01505
20130101 |
Class at
Publication: |
2/161.6 ;
2/164 |
International
Class: |
A41D 19/015 20060101
A41D019/015 |
Claims
1. A glove for handling razor sharp materials comprising: a liner
for a hand; an outer shell affixed to the liner; and a plurality of
metal fasteners on a palm-side of the outer shell configured in a
substantially staggered arrangement.
2. The glove of claim 1, wherein the lengths of the plurality of
metal fasteners are oriented in a direction that is substantially
perpendicular to the cutting or slashing direction of the razor
sharp materials.
3. The glove of claim 1, wherein the liner comprises a body yarn
that comprises a cut resistant fiber, a wire, or both.
4. The glove of claim 1, wherein the outer shell comprises
leather.
5. The glove of claim 1, wherein the metal fasteners comprise
staples.
6. A glove for handling razor sharp materials comprising: a cut
resistant liner for a hand comprising a body yarn knitted to form
four finger components, a thumb component, at least two palm
components, and a wrist component, wherein the body yarn comprises
a cut resistant fiber, a wire, or both; an outer shell comprising
leather that forms digits, a palm-side, a knuckle-side, and a cuff
such that the outer shell is affixed over the cut resistant liner;
a palm patch affixed to the palm-side of the outer shell; a first
plurality of staples On the palm patch configured to provide a
substantially staggered arrangement; a second plurality of staples,
a cut resistant seam, or both along the periphery of the glove; and
a third plurality of staples on one or more digits of the outer
shell.
7. The glove of claim 6, wherein the first plurality of staples in
the substantially staggered arrangement are oriented in a direction
that is substantially perpendicular to the cutting or slashing
direction of the razor sharp materials.
8. The glove of claim 6, wherein the cut resistant fiber comprises
a para-aramid, an ultra high molecular weight polyethylene, or
combinations thereof.
9. The glove of claim 6 comprising the cut resistant seam that
comprises a para-aramid, an ultra high molecular weight
polyethylene, a wire or combinations thereof.
10. The glove of claim 6, wherein the body yarn is a composite yarn
that comprises a para-aramid fiber, the wire, and a non-performance
yarn.
11. The glove of claim 6, wherein the leather comprises a natural
leather, a synthetic leather, or a combination thereof.
12. The glove of claim 6, wherein the palm patch covers a portion
of the palm-side and a portion of at least one digit.
13. The glove of claim 6, further comprising one or more
reinforcing patches affixed to one or more digits by a plurality of
metal fasteners.
14. A method of making a glove for handling razor sharp materials,
the method comprising: providing a liner for a hand; stitching an
outer shell to the liner; and inserting a first plurality of metal
fasteners into a palm-side of the outer shell in a substantially
staggered arrangement.
15. The method of claim 14, wherein the liner is cut-resistant and
the outer shell comprises leather.
16. The method of claim 14 further comprising forming the outer
shell from a gunn cut pattern and a wing-style thumb.
17. The method of claim 14 further comprising securing a palm-side
and a knuckle-side of the outer shell with a second plurality of
metal fasteners, or a cut resistant seam, or both along a periphery
of the outer shell.
18. The method of claim 14 further comprising providing a third
plurality of metal fasteners on one or more digits of the outer
shell.
19. A method of handling razor sharp materials, the method
comprising wearing a glove that provides a plurality of metal
fasteners in a substantially staggered arrangement such that the
lengths of the fasteners are oriented in a direction that is
substantially perpendicular to the cutting or slashing direction of
the razor sharp materials.
20. The method of claim 19, wherein the glove comprises: a
cut-resistant liner for a hand comprising a body yarn knitted to
form four finger components, a thumb component, at least two palm
components, and a wrist component, wherein the body yarn comprises
a cut resistant fiber; an outer shell comprising leather that forms
digits, a palm-side, a knuckle-side, and a cuff such that the outer
shell is affixed over the cut resistant liner; a palm patch affixed
to the palm-side of the outer shell, and a plurality of staples are
on the palm patch; a second plurality of staples, a cut resistant
seam, or both along the periphery of the glove; and a third
plurality of staples on the digits of the outer shell.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority under 35 U.S.C.
.sctn.119(e) to U.S. Patent Application Ser. No. 61/229,712, filed
Jul. 29, 2009, which is hereby incorporated by reference in their
entirety.
TECHNICAL FIELD
[0002] This invention pertains generally to gloves used for
handling razor sharp materials. More specifically, this invention
is directed to a two-layered glove having metal fasteners such as
staples configured in a staggered arrangement for handling barbed
tape, barbed wire, razor wire, concertina wire, and the like.
BACKGROUND
[0003] Handling razor sharp materials poses many hazards.
Cut/slash, puncture, and snag are the primary hazards confronting
those who handle barbed tape, barbed wire, razor wire, concertina
wire, and other types of temporary barrier and security wire. These
multiple hazards are not easily addressed with a single
material.
[0004] Historically, leather has provided some amount of
protection. Leather provides some resistance to abrasion and
puncture, but offers little resistance to cut/slash. The thicker
and heavier the leather, the more puncture resistance that is
provided. Performance can vary greatly even over an increase of
just 1 ounce per square yard (osy). Unfortunately increasing
weight/thickness in an attempt to increase puncture resistance can
come at the expense of decreasing flexibility and increasing
bulk.
[0005] Due to the constant presence of razor sharp materials,
traditional threads that are unable to withstand any cut/slash are
typically not used in constructing gloves for handling such
materials. Metal fasteners such as staples are suitable, but can
inhibit dexterity. Also, protection of the wearer's hand from the
metal fasteners then becomes a requirement. Traditionally, a
flocked cotton liner is used under a leather glove for this
purpose. The flocked cotton liner offers some additional cut
resistance as compared the leather, but the overall result still is
inadequate to provide the high levels of cut resistance desired for
handling razor sharp materials.
[0006] It is a goal to improve upon current hand protection used
for handling razor sharp materials. There is also a goal to provide
gloves having excellent dexterity and cut resistance that are
form-fitting and comfortable.
SUMMARY
[0007] Provided are gloves for handling barbed wire that
significantly improve overall dexterity, cut resistance, weight,
and comfort as compared to prior gloves for the same purpose. The
gloves are at least two-layered, having a knitted, seamless liner
that is affixed within an outer leather shell. The liner is cut
resistant, and can be formed from a composite yarn that includes
para-aramid fibers, wire, and non-performance fibers such as nylon,
cotton, and/or polyester. Metal fasteners such as staples are
provided on a palm-side of the glove in a staggered arrangement so
that sharp edges are readily deflected during use. Preferably, the
lengths of the staples are oriented in a direction that is
perpendicular to the direction of any cutting and/or slashing
motion.
[0008] In a first aspect, provided are gloves for handling razor
sharp materials that comprise a liner for a hand; an outer shell
affixed to the liner; and a plurality of metal fasteners on a
palm-side of the outer shell configured in a substantially
staggered arrangement.
[0009] A detailed aspect provides that the glove comprises a cut
resistant liner for a hand comprising a body yarn knitted to form
four finger components, a thumb component, at least two palm
components, and a wrist component, wherein the body yarn comprises
a cut resistant fiber, a wire, or both; an outer shell comprising
leather that forms digits, a palm-side, a knuckle-side, and a cuff
such that the outer shell is affixed over the cut resistant liner;
a palm patch affixed to the palm-side of the outer shell; a first
plurality of staples on the palm patch configured to provide a
substantially staggered arrangement; a second plurality of staples
along the periphery of the glove; and a third plurality of staples
on one or more digits of the outer shell.
[0010] In a further aspect, methods of making a glove for handling
razor sharp materials comprise: providing a liner for a hand;
affixing an outer shell to the liner; and configuring a first
plurality of metal fasteners on a palm-side of the outer shell in a
substantially staggered arrangement.
[0011] Another aspect is a method of handling razor sharp
materials, the method comprising wearing a glove that provides a
plurality of metal fasteners in a substantially staggered
arrangement such that the lengths of the fasteners are oriented in
a direction that is substantially perpendicular to the cutting or
slashing direction of the razor sharp materials.
BRIEF DESCRIPTION OF DRAWINGS
[0012] FIGS. 1A-1B are photographs of a top/knuckle-side view of an
embodiment;
[0013] FIG. 2 is a photograph of a bottom/palm-side view of an
embodiment;
[0014] FIG. 3 is a photograph of an exemplary cut resistant
liner;
[0015] FIG. 4 is a schematic of an end view of an embodiment of the
glove; and
[0016] FIG. 5 is a schematic of an exemplary knitted liner.
DETAILED DESCRIPTION
[0017] Gloves for handling barbed wire are provided, which have
excellent dexterity, cut resistance, weight, and comfort. The
gloves have at least two layers: a knitted, seamless liner that
contacts a hand and an outer leather shell that contacts razor
sharp materials. Metal fasteners such as staples are configured in
a staggered arrangement on a palm-side of the outer shell so that
sharp razor edges are readily deflected during use.
[0018] The knitted liner is form-fitting and cut resistant. Cut
resistant yarns include those yarns comprising a para-aramid such
as that sold under the tradename Kevlar.RTM. or an ultra high
molecular weight polyethylene sold under the trade names
Spectra.RTM. or Dyneema.RTM.. The liner can be formed from a
composite yarn that includes para-aramid fibers, wire, and
non-performance fibers such as nylon, cotton, and/or polyester. In
one or more embodiments, the knitted liner is 10 gauge. In a
detailed embodiment, the composite yarn has 2 plys, where each ply
is a blend of p-aramid, modacrylic, and nylon and one of the plys
has a 0.05 mm steel wire. The inside of the liner can be provided
with an internal layer for comfort and moisture/sweat wicking. In a
detailed embodiment, the liner is plaited with two yarns 50/50
polyester/cotton, each having a different dimension (on having a
10/1 count and the other having a 16/1 count). The thumb crotch is
preferably reinforced with 1 end of 20/2 Kevlar stitched along the
edge of the first finger from the tip to the beginning of the thumb
crotch, and 3 ends of 20/2 Kevlar can be used as overedging in the
thumb crotch. The conformable fit of the knitted liner accommodates
a wider range of hand sizes and minimizes slippage of the glove by
keeping the glove in better contact with the hand thus preventing
inadvertent or accidental separation of the glove from the wearer.
Integration of the knitted liner at both the fingertips and wrist
edge to the outer shell can promote easy donning and doffing.
[0019] The outer shell is leather, meaning it can be natural or
synthetic leather or a combination thereof. The outer shell can be
formed from a pre-curved modified gunn cut pattern with an extended
set-in wing style thumb. The gunn cut pattern means that the design
of the glove digits is flat such that a top piece is secured to a
bottom piece and there is no side portion to the digits. By
providing a pattern that is pre-curved, the glove is shaped to
accommodate the natural curvature of a hand. Use of the gunn cut
pattern avoids a heavy seam on the knuckle-side of the outer shell
thus improving overall flexibility of the glove. A cuff of the
outer shell is flared and can be lengthen or shortened to meet
protection requirements. Use of the wing-style thumb and flared
cuff affords the wearer with a high degree of flexibility and ample
room to tuck their garment sleeve inside the cuff of the glove. The
pre-curved pattern includes an offset of the crotch between the
fourth and fifth fingers to better conform to the hand. This design
is repeated in the knitted liner which in combination eliminates a
loose generic fit and the concept of "one size fits all." A palm
patch can be used to provide yet another layer of cut resistance
where the palm patch is sewn to the palm-side of the outer shell
and the plurality of staples in the staggered arrangement also
affixes the palm patch to the palm-side of the outer shell. The
palm patch allows for greater freedom in the placement of staples
to improve their overall functionality. The palm patch can extend
to cover a portion of any digit of the outer shell. Additional
patches can be sewn and or stapled to any digit as desired.
Additional staples can be added to each digit as needed.
[0020] Metal fasteners such as staples are provided on a palm-side
of the outer shell in a staggered arrangement so that sharp edges
are readily deflected during use. Preferably, the lengths of the
staples are oriented in a direction that is perpendicular to the
direction of any cutting and/or slashing motion. With regard to the
metal fasteners, staples are preferred, but it is recognized that
other metal materials could be suitable for deflecting the razor
sharp materials. The staples can be 60 mm.
[0021] Turning to the figures, FIGS. 1A and 1B are photographs of a
top/knuckle-side view of an embodiment of the invention. An outer
shell 10 of leather forms digits 12 (thumb, first finger, middle
finger, ring finger, and pinky finger), a palm-side (not shown), a
knuckle-side 14, and a flared cuff 18 which joins the knuckle-side
at seam 20 with a plurality of staples. The thumb is secured to the
knuckle-side at seam 22. A seam 16 between the palm-side and the
knuckle-side 14 is secured by a plurality of staples. Desired
locations along the periphery of the outer shell, in addition to
the staples, can be sewn with a cut resistant thread comprising a
para-aramid fibers such as those sold under the trade name
Kevlar.RTM.. For example, a sewn seam can be provided from the tip
of the first finger to the tip of the thumb. Additional leather
protection is provided by patches and staples 24 and 26, on the
thumb and first finger, respectively.
[0022] FIG. 2 is a photograph of a bottom/palm-side view of an
embodiment of the invention. An outer shell 10 of leather forms
digits 12 (thumb, first finger, middle finger, ring finger, and
pinky finger), a palm-side 38, a knuckle-side (not shown), and a
flared cuff 18 which joins the palm-side at seam 20 with a
plurality of staples. The thumb is secured to the knuckle-side at
seam 22. A seam 16 between the palm-side 38 and the knuckle-side is
secured by a plurality of staples. Desired locations along the
periphery of the outer shell, in addition to the staples, can be
sewn with a cut resistant thread comprising a para-aramid fiber.
For example, a sewn seam can be provided from the tip of the first
finger to the tip of the thumb. Additional leather protection is
provided by palm patch 32 which has a plurality of staples 34
arranged in a staggered configuration. The palm patch 32 extends to
the thumb and the first finger. The digits 12 also each have
pluralities of staples 36. Other embodiments of gloves include
those using cut resistant yarns only to form a cut resistant seam
between the palm-side and the knuckle-side. Suitable cut resistant
yarns include those containing para-aramid fibers, ultra high
molecular weight polyethylene fibers, wire, or combinations
thereof.
[0023] FIG. 3 is a photograph of an exemplary knitted liner 50
having finger components 54, a thumb component 52, a palm component
56, and a wrist component 58. A reinforced crotch 60 is provided
between the first finger component and the thumb component 56
[0024] FIG. 4 provides an end view of the knitted liner 104 secured
by stitches 102 (or glue or any suitable way) to the outer shell
100.
[0025] FIG. 5 shows an exemplary knitted liner 500 according to one
embodiment of the present invention. This liner 500 includes nine
components, including each of the finger components 510, 512, 514,
and 516, the thumb component 518, three palm components 504, 506,
and 507, and the wrist component 502. Palm component 507 is
referred to as a three-fingered palm since it is attached to only
three finger components 512, 514, and 516 (ring, middle, and
first). The presence of palm component 507 permits an ergonomic
enhancement to the glove by creating a pinky 510 component that is
dropped (that is, a "dropped pinky") as compared to the rest of the
fingers. Palm component 506 is a four-fingered palm since it
attaches to the pinky 510 and the three-fingered palm component
507. The wrist component optionally contains courses of a colored
yarn 520. The wrist component also can have a ravel-resistant edge
522.
[0026] Liner 500 can be knit on a programmable knitting machine. It
may be desired to use liners having variable stitch to achieve an
overall shape that accommodates variations in size and shape of
individual fingers and hands. Liner 500 can be made, for example,
on a SFG knitting machine available from Shima Seiki Mfg., Ltd.
based in Wakayama, Japan. Each of the components of FIG. 5 is
formed from courses having a designated stitch setup. A plurality
of courses creates a section within the component.
[0027] Table 1 highlights the limitation and variability in leather
by summarizing cut test results in accordance with the industry
standard ASTM F1790 test method.
TABLE-US-00001 TABLE 1 ASTM F 1790-97 RESULTS Glove Thickness Basis
CPPT Component (mils) Weight (osy) (grams) % Increase Leather 70.8
40.2 396 Baseline 1-ply Leather 103.9 48.7 695 76% 1-ply + cotton
Leather 127.1 77.3 690 74% 2-ply Leather 166.4 85.3 993 151% 2-ply
+ cotton 1-ply Leather + 99.7 47.2 1112 181% Knit Liner A 2-ply
Leather + 131.4 86.8 1672 322% Knit Liner A 1-ply Leather + 166.3
54.3 2960 647% Knit Liner B 2-ply Leather + 192.5 96.3 3957 899%
Knit Liner B "A" = 100% Kevlar .RTM. string knit. "B" = knitted 10
gauge liner the composite yarn that has 2 plys, where each ply is a
blend of 60% p-aramid, 20% modacrylic, and 20% nylon and one of the
plys has a 0.05 mm steel wire.
[0028] Numerous options become available when integrating a knitted
cut resistant liner. Several options are included in Table 1 to
demonstrate a cut resistance continuum and the significant increase
achievable through the use of the integrated liner approach. A
single layer of leather provides only 396 gms of cut resistance
while adding the flocked cotton liner adds another 75% to this
value. The flocked cotton by itself offers almost the same cut
resistance as the leather but a simple cotton glove would never be
considered adequate protection against razor sharp materials. Cut
resistance improved relative to the use of the cotton liner by
adding a simple 100% Kevlar.RTM. liner (e.g., Insert A) that
increases the cut resistance of a single-layer of leather by about
180% or by adding a 10 gauge composite liner (e.g., Insert B) that
increases cut resistance by more than 600%. Under 2-ply of leather
these values increase to more than 300% for the Kevlar.RTM. liner
and almost 900% for the composite liner.
[0029] The palm patch used in the present glove allows for freedom
in the placement of staples to improve their overall functionality.
The combined use of the knitted liner not only adds redundancy to
the protection afforded the glove, but also allows for a reduction
in the number and size/gauge of staples used. Orientation of the 60
mm staples used on the palm reinforcement is perpendicular to the
expected insult of the razor wire thus allowing the razor wire to
travel on top of the staples rather than hitting between the
staples which can be the case in other gloves not so configures.
The density of the staples is such that each row is offset and
slightly over-laps linearly with subsequent rows. This functional
pattern ensures that the cutting hazard is most likely to come in
contact with a staple without traveling extensively over
leather-only areas.
[0030] Unless otherwise indicated, all numbers expressing
quantities of ingredients, reaction conditions, and so forth used
in the specification and claims are to be understood as being
modified in all instances by the term "about."
[0031] Before describing several exemplary embodiments of the
invention, it is to be understood that the invention is not limited
to the details of construction or process steps set forth in the
following description. The invention is capable of other
embodiments and of being practiced in various ways.
[0032] Reference throughout this specification to "one embodiment,"
"certain embodiments," "one or more embodiments" or "an embodiment"
means that a particular feature, structure, material, or
characteristic described in connection with the embodiment is
included in at least one embodiment of the invention. Thus, the
appearances of the phrases such as "in one or more embodiments,"
"in certain embodiments," "in one embodiment" or "in an embodiment"
in various places throughout this specification are not necessarily
referring to the same embodiment of the invention. Furthermore, the
particular features, structures, materials, or characteristics may
be combined in any suitable manner in one or more embodiments.
[0033] The invention has been described with specific reference to
the embodiments and modifications thereto described above. Further
modifications and alterations may occur to others upon reading and
understanding the specification. It is intended to include all such
modifications and alterations insofar as they come within the scope
of the invention.
* * * * *