U.S. patent application number 15/395232 was filed with the patent office on 2017-12-07 for helmet comprising integrated rotational impact attenuation and fit system.
The applicant listed for this patent is Bell Sports, Inc.. Invention is credited to Gregg T. Jacobsen, Hilgard N. Muller, Benjamin W. Penner, Ben D. Pritz.
Application Number | 20170347736 15/395232 |
Document ID | / |
Family ID | 60482574 |
Filed Date | 2017-12-07 |
United States Patent
Application |
20170347736 |
Kind Code |
A1 |
Penner; Benjamin W. ; et
al. |
December 7, 2017 |
HELMET COMPRISING INTEGRATED ROTATIONAL IMPACT ATTENUATION AND FIT
SYSTEM
Abstract
A helmet can include an energy absorbing shell including an
outer surface and an inner surface opposite the outer surface. A
fit system member can be coupled to a rear of the energy absorbing
shell to adjust a fit of the helmet for a user. A sliding layer can
include an outer sliding layer surface oriented towards the inner
surface of the energy absorbing shell and an inner sliding layer
surface opposite the outer surface. The sliding layer can include
at least one attachment member and at least one integrated fit
system arm. The at least one integrated fit system arm can be
coupled to the fit system member. An elastomeric member can include
a first end coupled to the energy absorbing shell and a second end
coupled to the attachment member of the sliding layer. Comfort
padding can be coupled to the inner surface of the Sliding
layer.
Inventors: |
Penner; Benjamin W.; (Santa
Cruz, CA) ; Muller; Hilgard N.; (Felton, CA) ;
Pritz; Ben D.; (Santa Cruz, CA) ; Jacobsen; Gregg
T.; (Santa Cruz, CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Bell Sports, Inc. |
Scotts Valley |
CA |
US |
|
|
Family ID: |
60482574 |
Appl. No.: |
15/395232 |
Filed: |
December 30, 2016 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
62347053 |
Jun 7, 2016 |
|
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|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A42B 3/085 20130101;
A42B 3/064 20130101; A42B 3/066 20130101; A42B 3/147 20130101; A42B
3/283 20130101; A42B 3/14 20130101; A42B 3/145 20130101; A42B 3/125
20130101 |
International
Class: |
A42B 3/06 20060101
A42B003/06; A42B 3/08 20060101 A42B003/08; A42B 3/12 20060101
A42B003/12; A42B 3/28 20060101 A42B003/28 |
Claims
1. A helmet, comprising: an energy absorbing shell comprising an
outer surface and an inner surface opposite the outer surface; a
fit system member coupled to a rear of the energy absorbing shell
and adjustable to fit the helmet for a user; a sliding layer
comprising an outer sliding layer surface oriented towards the
inner surface of the energy absorbing shell and an inner sliding
layer surface opposite the outer sliding layer surface, the sliding
layer comprising at least one attachment member and at least one
integrated fit system arm, wherein the at least one integrated fit
system arm is coupled to the fit system member; an elastomeric
member comprising a first end coupled to the energy absorbing shell
and a second end coupled to the at least one attachment member of
the sliding layer; and comfort padding coupled to the inner surface
of the sliding layer.
2. The helmet of claim 1, wherein the comfort padding is disposed
over the second end of the elastomeric member and the at least one
attachment member of the sliding layer.
3. The helmet of claim 1, wherein: the at least one attachment
member of the sliding layer is formed as an opening in the sliding
layer; the second end of the elastomeric member is disposed within
the opening in the sliding layer; and the first end of the
elastomeric member is coupled to the energy absorbing shell with a
pin.
4. The helmet of claim 1, further comprising helmet straps coupled
to the energy absorbing shell and threaded through the fit system
member.
5. The helmet of claim 1, further comprising a second sliding layer
disposed between the outer surface of the sliding layer and the
outer surface of the energy absorbing shell.
6. The helmet of claim 1, wherein the sliding layer is injection
molded.
7. The helmet of claim 1, wherein: the fit system member is formed
as a fit system cradle comprising a pinion; and the at least one
integrated fit system arm comprises a first fit system arm and a
second fit system arm, the first fit system arm comprising teeth
contacting a first side of the pinion and a the second fit system
arm comprising teeth contacting a second side of the pinion.
8. A helmet, comprising: an energy absorbing shell comprising an
outer surface and an inner surface opposite the outer surface; a
fit system member disposed inward of the energy absorbing shell and
adjustable to adjust a fit of the helmet; a sliding layer
comprising an outer sliding layer surface oriented towards the
inner surface of the energy absorbing shell and an inner sliding
layer surface opposite the outer surface, the sliding layer
comprising an attachment member and at least one fit system arm,
wherein the at least one fit system arm is coupled to the fit
system member; and an elastomeric member comprising a first end
coupled to the energy absorbing shell and a second end coupled to
the attachment member of the sliding layer.
9. The helmet of claim 8, wherein: the attachment member of the
sliding layer is formed as an opening in the sliding layer; the
second end of the elastomeric member is disposed within the opening
in the sliding layer; and the first end of the elastomeric member
is coupled to the energy absorbing shell.
10. The helmet of claim 8, further comprising helmet straps coupled
to the energy absorbing shell and threaded through the fit system
member.
11. The helmet of claim 8, further comprising a second sliding
layer disposed between the outer surface of the sliding layer and
the outer surface of the energy absorbing shell.
12. The helmet of claim 8, wherein the sliding layer is injection
molded.
13. The helmet of claim 1, wherein: the fit system member is formed
as a fit system cradle comprising a pinion; and the at least one
integrated fit system arm comprises a first fit system arm and a
second fit system arm, the first fit system arm comprising teeth
contacting a first side of the pinion and a the second fit system
arm comprising teeth contacting a second side of the pinion.
14. The helmet of claim 8, wherein the fit system cradle is coupled
to the energy absorbing shell with a pin.
15. A helmet, comprising: an energy absorbing shell comprising an
outer surface and an inner surface opposite the outer surface; a
fit system member disposed inward of the energy absorbing shell; a
sliding layer comprising at least one fit system arm coupled to the
fit system member; and an elastomeric member coupled to the energy
absorbing shell and the sliding layer.
16. The helmet of claim 15, further comprising the comfort padding
disposed over where the elastomeric member is coupled to the
sliding layer.
17. The helmet of claim 15, wherein: the sliding layer comprises an
opening disposed in the sliding layer; the elastomeric member
comprises a second end disposed within the opening in the sliding
layer; and the elastomeric member comprises a first end coupled to
the energy absorbing shell with a pin.
18. The helmet of claim 15, further comprising a second sliding
layer disposed between the outer surface of the sliding layer and
the outer surface of the energy absorbing shell.
19. The helmet of claim 15, wherein: the fit system member is
formed as a fit system cradle comprising a pinion; and the at least
one integrated fit system arm comprises a first fit system arm and
a second fit system arm, the first fit system arm comprising teeth
contacting a first side of the pinion and a the second fit system
arm comprising teeth contacting a second side of the pinion.
20. The helmet of claim 15, wherein the sliding layer is formed
with injection molding.
Description
RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. provisional
patent application 62/347,053, filed Jun. 7, 2016 titled
"Integrated Rotational Impact Attenuation and Fit System," the
entirety of the disclosure of which is hereby incorporated by this
reference.
TECHNICAL FIELD
[0002] This disclosure relates to a protective helmet comprising an
integrated rotational impact attenuation and fit system and method
of forming the same.
BACKGROUND
[0003] Protective headgear and helmets have been used in a wide
variety of applications and across a number of industries including
sports, athletics, construction, mining, military defense, and
others, to prevent damage to a user's head and brain. Damage and
injury to a user can be prevented or reduced by helmets that
prevent hard objects or sharp objects from directly contacting the
user's head. Damage and injury to a user can also be prevented or
reduced by helmets that absorb, distribute, or otherwise manage
energy of an impact.
SUMMARY
[0004] A need exists for an improved helmet. Accordingly, in an
aspect, a helmet can comprise an energy absorbing shell comprising
an outer surface and an inner surface opposite the outer surface. A
fit system member can be coupled to a rear of the energy absorbing
shell and adjustable to fit the helmet for a user. A sliding layer
can comprise an outer sliding layer surface oriented towards the
inner surface of the energy absorbing shell and an inner sliding
layer surface opposite the outer sliding layer surface. The sliding
layer can comprise at least one attachment member and at least one
integrated fit system arm. The at least one integrated fit system
arm can be coupled to the fit system member. An elastomeric member
can comprise a first end coupled to the energy absorbing shell and
a second end coupled to the at least one attachment member of the
sliding layer. Comfort padding coupled to the inner surface of the
sliding layer.
[0005] The helmet can further comprise the comfort padding being
disposed over the second end of the elastomeric member and the at
least one attachment member of the sliding layer. The at least one
attachment member of the sliding layer can be formed as an opening
in the sliding layer, the second end of the elastomeric member can
be disposed within the opening in the sliding layer, and the first
end of the elastomeric member can be coupled to the energy
absorbing shell with a pin. Helmet straps can be coupled to the
energy absorbing shell and threaded through the fit system member.
A second sliding layer can be disposed between the outer surface of
the sliding layer and the outer surface of the energy absorbing
shell. The sliding layer can be injection molded. The fit system
member can be formed as a fit system cradle comprising a pinion,
and the at least one integrated fit system arm can comprise a first
fit system arm and a second fit system arm, the first fit system
arm comprising teeth contacting a first side of the pinion and a
the second fit system arm comprising teeth contacting a second side
of the pinion.
[0006] In another aspect, a helmet can comprise an energy absorbing
shell comprising an outer surface and an inner surface opposite the
outer surface. A fit system member can be disposed inward of the
energy absorbing shell and adjustable to adjust a fit of the
helmet. A sliding layer can comprise an outer sliding layer surface
oriented towards the inner surface of the energy absorbing shell
and an inner sliding layer surface opposite the outer surface. The
sliding layer can comprise an attachment member and at least one
fit system arm. The at least one fit system arm can be coupled to
the fit system member. An elastomeric member can comprise a first
end coupled to the energy absorbing shell and a second end coupled
to the attachment member of the sliding layer.
[0007] The helmet can further comprise the attachment member of the
sliding layer being formed as an opening in the sliding layer, the
second end of the elastomeric member being disposed within the
opening in the sliding layer, and the first end of the elastomeric
member being coupled to the energy absorbing shell. Helmet straps
can be coupled to the energy absorbing shell and threaded through
the fit system member. A second sliding layer can be disposed
between the outer surface of the sliding layer and the outer
surface of the energy absorbing shell. The sliding layer can be
injection molded. The fit system member can be formed as a fit
system cradle comprising a pinion, and the at least one integrated
fit system arm can comprise a first fit system arm and a second fit
system arm, the first fit system arm comprising teeth contacting a
first side of the pinion and a the second fit system arm comprising
teeth contacting a second side of the pinion. The fit system cradle
can be coupled to the energy absorbing shell with a pin.
[0008] In another aspect, the helmet can further comprise an energy
absorbing shell comprising an outer surface and an inner surface
opposite the outer surface. A fit system member can be disposed
inward of the energy absorbing shell. A sliding layer comprising at
least one fit system arm can be coupled to the fit system member.
An elastomeric member can be coupled to the energy absorbing shell
and the sliding layer.
[0009] The helmet can further comprise the comfort padding being
disposed over where the elastomeric member is coupled to the
sliding layer. The sliding layer can comprise an opening disposed
in the sliding layer, the elastomeric member can comprise a second
end disposed within the opening in the sliding layer, and the
elastomeric member can comprise a first end coupled to the energy
absorbing shell with a pin. A second sliding layer can be disposed
between the outer surface of the sliding layer and the outer
surface of the energy absorbing shell. The fit system member can be
formed as a fit system cradle comprising a pinion, and the at least
one integrated fit system arm can comprise a first fit system arm
and a second fit system arm, the first fit system arm comprising
teeth contacting a first side of the pinion and a the second fit
system arm comprising teeth contacting a second side of the pinion.
The sliding layer can be formed with injection molding.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1 shows an embodiment of a helmet comprising an
integrated rotational impact attenuation and fit system.
[0011] FIG. 2 shows a rotational sliding layer for an integrated
rotational impact attenuation and fit system.
[0012] FIGS. 3A and 3B show a fit system member for the integrated
fit system.
[0013] FIGS. 4A-4C show various views of a fit system member being
coupled to a rotational sliding layer.
[0014] FIGS. 5A-5C show various views of a rotational sliding layer
fit system.
[0015] FIGS. 6A-6D show elastomeric members coupled to a rotational
sliding layer fit system.
[0016] FIGS. 7A and 7B show straps coupled to a helmet comprising
an integrated rotational impact attenuation and fit system.
[0017] FIGS. 8A and 8B show detail at an interior of a helmet
comprising an integrated rotational impact attenuation and fit
system.
DETAILED DESCRIPTION
[0018] This disclosure, its aspects and implementations, are not
limited to the specific helmet or material types, or other system
component examples, or methods disclosed herein. Many additional
components, manufacturing and assembly procedures known in the art
consistent with helmet manufacture are contemplated for use with
particular implementations from this disclosure. Accordingly, for
example, although particular protective helmets are disclosed, such
protective helmets and implementing components may comprise any
shape, size, style, type, model, version, measurement,
concentration, material, quantity, and/or the like as is known in
the art for such protective helmets and implementing components,
consistent with the intended operation of a protective helmet.
[0019] The word "exemplary," "example," or various forms thereof
are used herein to mean serving as an example, instance, or
illustration. Any aspect or design described herein as "exemplary"
or as an "example" is not necessarily to be construed as preferred
or advantageous over other aspects or designs. Furthermore,
examples are provided solely for purposes of clarity and
understanding and are not meant to limit or restrict the disclosed
subject matter or relevant portions of this disclosure in any
manner. It is to be appreciated that a myriad of additional or
alternate examples of varying scope could have been presented, but
have been omitted for purposes of brevity.
[0020] While this disclosure includes a number of embodiments in
many different forms, there is shown in the drawings and will
herein be described in detail, particular embodiments with the
understanding that the present disclosure is to be considered as an
exemplification of the principles of the disclosed methods and
systems, and is not intended to limit the broad aspect of the
disclosed concepts to the embodiments illustrated.
[0021] The disclosure presents a device, apparatus, system, and
method for providing a protective helmet 30 comprising an
integrated rotational impact attenuation and fit system 70, as will
be discussed with respect to the figures. The helmet 30 can
comprise vents or openings 32 in the helmet 30 and an energy
absorbing shell 40. FIG. 1 shows a side profile view of the helmet
30 with a front 50 of the energy absorbing shell 40 disposed at the
left of the figure, the rear or back 52 of the energy absorbing
shell at the right of the figure, and a left side 54 of the energy
absorbing shell being shown or presented in the FIG.
[0022] The vents 32 can be formed in, and extend through, a portion
or entirety of the helmet 30, including the energy absorbing shell
40. The vents 32 can allow for airflow and circulation of air from
outside the helmet 30 into the helmet 30 and adjacent the head of
the user to cool the user and provide ventilation.
[0023] The energy absorbing shell 40 can optionally comprise an
outer shell 42 and can be formed of energy management or
energy-absorbing layers or materials 44, such as foam, which are
discussed in greater detail below. The protective helmet 30 can be
a bike helmet used for mountain biking or road cycling, or a helmet
that can be used for other applications and in other industries
that also use protective headwear. In any event, the protective
helmet 30 can function to provide protection while minimizing
interference with an activity.
[0024] The outer shell 42 can, without limitation, be formed of a
plastic, resin, fiber, or other suitable material including
polycarbonate (PC), polyethylene terephthalate (PET), acrylonitrile
butadiene styrene (ABS), polyethylene (PE), polyvinyl chloride
(PVC), vinyl nitrile (VN), fiberglass, carbon fiber, or other
similar material. The outer shell 42 can be stamped, in-molded,
injection molded, vacuum formed, or formed by another suitable
process. The outer shell 42 can provide a shell into which the
energy management layer 44 can be disposed, whether the helmet 30
be a hard shell helmet or a soft shell helmet, as known in the art.
The outer shell 42 can also provide a smooth aerodynamic finish, a
decorative finish, or both, for improved performance, improved
aesthetics, or both. As a non-limiting example, the outer shell 42
can comprise PC shell that is in-molded in the form of a vacuum
formed sheet, or is attached to the energy management layer 44
with, e.g., an adhesive. The outer shell 42 can also be permanently
or releasably coupled to the energy management layer 44, using any
suitable chemical or mechanical fastener or attachment device or
substance including without limitation, an adhesive, permanent
adhesive, pressure sensitive adhesive (PSA), foam-core adhesive,
tape, two-sided tape, mounting foam adhesive, fastener, clip,
cleat, cutout, tab, snap, rivet, hog ring, or hook and loop
fasteners.
[0025] The energy absorbing shell 40 can comprise an outer surface
48 of the energy absorbing shell 40 (which can also be an outer
surface of the outer shell 42, when the outer shell 42 is present)
that can be oriented away from the user. The energy absorbing shell
40 can further comprise and an inner surface 46 opposite the outer
surface 48, which can be oriented towards a head of the user. The
energy management layer 44 can be made or formed of plastic,
polymer, foam, or other suitable energy-absorbing material or
impact liner to absorb, deflect, attenuate or otherwise manage
energy and to contribute to energy management for protecting a
wearer during impacts. The energy management layer 44 can include,
without limitation, expanded polystyrene (EPS), expanded
polypropylene (EPP), expanded polyurethane (EPU), expanded
polyolefin (EPO), or other suitable material. An in-molded helmet
30 can be formed with the outer shell 42 of the helmet being bonded
directly to the energy management layer 44, and by expanding foam
or the energy management layer 44 into the outer shell 42. As such,
the energy management layer 44 can, in some embodiments, be
in-molded into outer shell 42, as single monolithic body of energy
management material 44. Alternatively, in other embodiments the
energy management layer 44 can be formed of multiple, or a
plurality, of portions or layers. In any event, the energy
management layers 44 can absorb or manage energy from an impact by
bending, flexing, crushing, or cracking.
[0026] The energy absorbing shell 40 (including the outer shell 42
and the energy management material 44) can comprise a thickness
measured in a radial direction extending from a center of the
helmet 30 to the outer surface 48 of the energy absorbing shell 40,
the thickness being measured from an inner surface 46 to the outer
surface 48. The distance of the thickness can be in a range of 5-50
mm, 5-25 mm, or 8-15 mm.
[0027] The helmet 30 can also comprise straps or webbing 60 that
can be attached to the helmet 30 and can be used to couple or
releasably attach the helmet 30 to the head of the user. The straps
60 can comprise a rear portion or strap 62, a front portion or
strap 64, a left portion or strap 66, and a right portion or strap
68. While the various portions 62, 64, 66, and 68 of strap 62 can
be portions of one or more single continuous straps, the portions
62, 64, 66, and 68 of the strap 60 can also be separate, distinct,
or discrete segments of strap. In either event, the portions 62,
64, 66, and 68 of the strap 60 can be coupled or joined together
mechanically or chemically, including by sewing, by being threaded
through strap adjustors or clips, or by any other suitable method.
FIG. 1 shows an embodiment in which a clip, fastener, or attachment
device 69 for releasably coupling portions of the straps 60
together, can be coupled at a position that will be below the chin
or at a neck of the user when the helmet is worn. The clip 69 can
comprise a left portion 69a and a right portion 69b that can be
coupled by friction, magnetism, or both, as well as by any other
desirable way. The helmet 30 can also comprise masks, visors,
optional comfort liners, and other features known in the art to be
associated with, or coupled to, helmets.
[0028] FIG. 2 shows a perspective view of a rotational sliding
layer or sliding layer 100 separate, apart, or without the energy
absorbing shell 40. An inner or bottom surface 104 of the sliding
layer 100 is shown oriented towards the viewer of the figure, with
an outer sliding layer surface 102, opposite the inner surface 104,
that can be oriented towards the inner surface 46 of the energy
absorbing shell 40 when the sliding layer 100 is disposed within,
and coupled to, the energy absorbing shell 40. The Sliding layer
100 is shown with the front 112 of the Sliding layer shown at the
bottom of FIG. 2, the rear 113 of the sliding layer 100 shown at
the top of the figure, the left side 114 of the sliding layer shown
at the left of the figure and the right side 115 of the sliding
layer shown at the right of the figure. The sliding layer 100, can
also comprise a plurality of openings, vents, channels, cutouts, or
voids 116 formed completely through the sliding layer 100,
extending from the outer surface 102 to the inner surface 104. In
some instances, an area of the openings 116 will be greater than a
solid portion or area of the sliding layer 100, such that more than
half of the sliding layer comprises the openings 116. The sliding
layer 100 in some instances can be completely solid or filed, while
in other instances the sliding layer 100 can be open or
opening-filled sliding layer 100 with more than half its area
formed of holes or openings, and as much as 95% or more of its area
filled, occupied, or defined by holes or openings.
[0029] The sliding layer 100 can comprise at least one attachment
member, attachment anchor, or attachment opening 106 for being
coupled to an elastomeric member 120, as shown and discussed in
greater detail, e.g., with respect to FIGS. 6A-6D. FIG. 2 shows
four attachment members 106 formed as keyhole or reentrant openings
comprising an inlet for receiving and then locking into place the
elastomeric members 120. However, the attachment members can be
formed of openings of any desirable shape and size, and can also
comprise pins, knobs, buttons, tabs, or attachment members. The
four openings 106 are shown with two of the openings 106 formed at
the front 112 of the sliding layer 100, and the other two openings
106 formed at the rear 113 of the sliding layer 100. Additionally,
one of the front openings 106 and one of the rear openings 106 can
be formed on the left side 114 of the sliding layer 100, while one
of the front openings 106 and one of the rear openings 106 can be
formed on the right side 115 of the sliding layer 100. However, in
other embodiments, one, two, three, five, six, or any other
suitable number of attachment members or openings 106 can be formed
in the sliding layer 100 according to the configuration, design,
and function of the sliding layer 100 and its desired movement with
elastomeric members 120.
[0030] The sliding layer 100 can also comprise at least one
integrated fit system arm108, such as a first or left integrated
fit system arm 108a and a second or right integrated fit system arm
108b. The at least one integrated fit system arm 108 can be coupled
to a fit system member or cradle 80, as shown an described in
greater detail in FIGS. 4A-4C, or any suitable device for adjusting
a size, shape, or both of the sliding layer 100 to better
accommodate the head of the user.
[0031] The sliding layer 100 can be formed of a plastic, resin,
fiber, metal, or other suitable low friction material or low
friction coated material including nylon, polypropylene (PP),
Polyoxymethylene (POM), PC, PET, ABS, PE, PVC, VN, fiberglass,
carbon fiber, steel, aluminum, or other similar material or
material suitable for injection molding. The outer shell 42 can be
stamped, in-molded, injection molded, vacuum formed, or formed by
another suitable process. In some instances a single step process
like injection molding can be used, and in others a multistep
process, such as vacuum forming a shape followed by cutting a
feature, such as a gear rack. When the sliding layer 100 is formed
by an injection molding process, the sliding layer 100 will be made
of a suitable plastic for injection molding an such as nylon, or
other suitable materials. The material selected for sliding layer
100 can also be selected based on its performance and suitability
in the sizing or adjusting the size of the sliding layer 100 to
match a size, shape, or both of the user. For example, nylon can
work well not only with an injection molding process, but can also
work well for forming integrated fit system arms 108 that can serve
as rear racks used as part of a rack and pinion design for an
sliding layer fit system 70 used to adjust to fit a size of the
user's head. When selecting a size of the sliding layer 100, a
general size of the sliding layer 100 should correspond to a
specific size range of a size of the helmet 30 and a size of the
user head, whether, e.g., small, medium, or large, so that only
small adjustments are needed with the fit system 70 to provide
final sizing or fine tuning of sizing to the user's head. Small
differences in sizing of the fit system 70 can be understood to be
sizes or adjustments that vary by percent difference of 0-20%,
0-10%, or 0-5% from a size of the user's head.
[0032] In addition to forming the sliding layers 100 in an
injection molding process, vacuum molding or other suitable molding
or forming process can also be used to form the sliding layer 100
as part of the fit system 70, whether or not the sliding layer 100
is formed as an integral or unitary piece of the fit system 70. As
such, the sliding layer 100 can comprise arms 108 or other features
or portions that are separately formed and added to the sliding
layer 100 so that when the sliding layer 100 is assembled as part
of the fit system 70, the composite sliding layer 100 can then acts
as both an energy management feature, such as for rotation
management, and a sizing feature, such as adjusting a size of the
sliding layer 100 to match or correspond to a size of the head of
the user. In some instances, a diameter of the sliding layer 100,
as well as a height or effective height adjustment for the helmet
wearer can also controlled by adjusting the sliding layer 100 as
part of the fit system 70, such that all size adjustment of the
helmet, including all height adjustment could be completely
integrated or combined with adjustments to a size and shape of the
sliding layer 100, which is further described below.
[0033] FIGS. 3A and 3B show a fit system member or fit system
cradle 80 that can optionally be coupled to a rear 52 of the energy
absorbing shell 40, as shown in FIG. 1, or could also be coupled
directly to the sliding layer 100. The fit system cradle 80 can be
disposed inward of the energy absorbing layer 40 such that an inner
surface of the energy absorbing layer 40 is oriented towards the
fit system 80, and the fit system 80 can be at least partially
disposed within an area or space defined by the energy absorbing
layer to receive the head of the user. In any event, the fit system
cradle 80 can be used to adjust a fit of the helmet 30 for a user
wearing the helmet 30. FIG. 3A shows the fit system cradle 80
separate or apart from the energy absorbing shell 40. Additionally,
FIG. 3A shows a non-limiting example of the fit system cradle 80
formed of plastic, metal, resin, fiber, or other suitable material
comprising a cradle 82, cradle pads 84, a dial 86, a front badge
88, a pinion 90, a fastener or screw 92, a rear badge 94, a base
96, and a cover 98. In moving from FIG. 3A to 3B, assembly of the
fit system member 80 can comprise assembling the rear badge 94 to
the cradle 82, assembling the base 96 to the rear badge 94,
assembling the sliding layer 100 to the base part 96 as shown in
FIGS. 4A-4C, assembling the pinion 90 to the base 96 and fit system
arms 108 as shown in FIGS. 4A-4C, assembling the dial 86 to the
pinion 90 and the base 96, assembling the cover 98 to the base 96
and the dial 86, testing the dial 86 for moving the pinion 90 to
reel in and pay out the fit system arms 108, assembling the screw
92 to the base post or opening 93 as shown in FIG. 4C, and
assembling the cradle pads 84 to the cradle wings 82c.
[0034] FIG. 3B, similar to FIG. 3A, shows the assembled fit system
member 80 ready to be coupled to the low friction layer 100, such
as with integrated fit system arms 108, which is shown and
described in greater detail in FIGS. 4A-4C.
[0035] FIGS. 4A-4C show portions of the integrated sliding layer
fit system 70 comprising the fit system member 80 coupled to the
Sliding layer 100 with the fit system member 80 being formed as a
fit system cradle comprising a pinion 90, and coupled to the at
least one integrated fit system arm 108 comprising a first or left
fit system arm 108a and a second or right fit system arm 108b.
[0036] FIG. 4A shows the second or right side fit system arm 108b
can be disposed in a slot 83, such as a right side slot 83b formed
in the cradle body 82, and passing under, or being held in place
by, one or more slot covers or arches 85, such as a right side
cover or arch 85b. The right side fit system arm 108b can comprise
teeth or ridges 110 that are aligned with, and contact, a second
side 90b of the pinion 90 as the right side fit system arm 108b is
disposed within the right slot 83b. FIG. 4B shows the right side
fit system arm 108b being disposed further along, or more
completely within, the right slot 83b, until the arm 108b contacts
a stop or arm stop 89, such as the right arm stop 89b.
[0037] FIG. 4C shows two fit system arms 108 with the first or left
side fit system arm 108a being disposed in a slot 83, such as a
left side slot 83a formed in the cradle body 82, and passing under,
or being held in place by, one or more slot covers or arches 85,
such as a left side cover or arch 85a. The left side fit system arm
108a can comprise teeth or ridges 110 that are aligned with, and
contact, a first side 90a of the pinion 90 as the left side fit
system arm 108a is disposed within the left slot 83a. The left side
fit system arm 108a can be disposed within, the left slot 83s,
until the arm 108a contacts a stop or arm stop 89, such as the left
arm stop 89a.
[0038] While FIGS. 4A-4C show a non-limiting example of the
integrated fit system arms 108 with teeth 110, the integrated fit
system arms 108 could also be formed without teeth and other
suitable attachment mechanisms, other than rack and pinion style
mechanisms, can also be used. For example, rather than the fit
system arms 108 comprising teeth 110, or even the sliding layer 100
comprising arms 108, the sliding layer 100 could comprise, or could
be coupled to, a different size adjusting mechanism or feature such
as elastic cords, bungees, or slidelocks that cold tighten or
loosen, like a drawstring, to adjust a size of the sliding layer
100.
[0039] FIGS. 5A-5C show the fit system member 80 and sliding layer
100 coupled together as the sliding layer fit system 70. FIG. 5A
shows a perspective view of the fit system 80 and the inner sliding
layer surface 104, with the front 112 of the sliding layer disposed
at the bottom of the figure, and the rear 114 of the sliding layer
at the top of the figure. FIG. 5A also shows that the sliding layer
100 can comprise one or more attachment members, attachment
anchors, or attachment openings 106 in the sliding layer 100. FIG.
5A shows a non-limiting example in which the sliding layer 100
comprises four openings 106, two of which are formed at the front
112 of the sliding layer 100, and the other two of the four
openings 106 formed at the rear 113 of the sliding layer 100.
Additionally, one of the front openings 106 and one of the rear
openings 106 can be formed on the left 114 of the sliding layer
100, while one of the front openings 106 and one of the rear
openings 106 can be formed on the right 115 of the sliding layer
100. In other embodiments, one, two, three, five, six, or any
suitable number of attachment members or openings 106 can be formed
in the sliding layer 100.
[0040] FIG. 5B shows a close up perspective view of the fit system
70 including the inner sliding layer surface 104 of sliding layer
100, similar to the view shown in FIG. 5A. FIG. 5B provides an
enlarged view of the fit system 80, and the integrated fit system
arm 108 being fed into the fit system 80, as well as showing a
non-limiting example of the cradle pin 82b disposed at the top of
the fit system 80. In some instances, the fit system member 80 can
be only indirectly coupled or attached to the energy absorbing
shell 40, rather than being directly coupled to the energy
absorbing shell 40 with the cradle pin 82b. For example, the fit
system member 80 can directly contact one or more portions of
sliding layer 100, such as the arms 108, or can also be coupled to
the sliding layer 100, rather than the energy absorbing shell 40,
such as with one or more elastomeric members 120 that are coupled
to the fit system member 80 in place of the cradle pin 82b.
[0041] FIG. 5C shows a rear perspective view of the fit system 70,
with the fit system 80 comprising a cradle pin, knob, button, tab,
or attachment member 82b. The pin 82b shown in FIG. 5C can be
coupled to the energy absorbing shell 40 by being directly or
indirectly attached to the energy absorbing shell 40. The pin 82b
can be directly attached to the energy absorbing shell 40 such as
by having the pin 82b disposed within an opening or receiving
aperture in the energy absorbing shell 40. Alternatively, the pin
82b can be indirectly attached to the energy absorbing shell 40
such as by having an intermediate member or hanger coupled to the
pin 82b, and then having a pin or portion of the intermediate
member or hanger coupled to, or disposed within, an opening or
receiving aperture in the energy absorbing shell 40.
[0042] FIGS. 5B-5C also show additional detail of the openings 106,
which can be configured or adapted to receive a corresponding
number of elastomeric members 120. The elastomeric members 120 can
be mateably coupled to the openings 106 as shown and described with
respect to FIGS. 6A-6D. Interaction among the various features or
elements of the fit system 70 can with the relative movement of the
energy absorbing shell 40 and the sliding layer 100 facilitated by
the elastomeric members 120, can aid in retention and fit of the
helmet 30 to a head of the helmet wearer.
[0043] Adjustment and performance of the sliding layer fit system
70 can be facilitated or advanced by forming the sliding layer 100
of nylon with injection molding, allowing for the fit system arms
108 to be formed at a same time as, and as part of, the sliding
layer 100, which can interact with the pinion 90 of the fit system
80. Forming the sliding layer 100 of nylon with injection molding
differs from conventional or normal vacuum molded sliding layer
parts or layers that have been formed and used as for rotational
energy management independent of the fitting process and a fit
system. By forming fit system arms 108 as part of the sliding layer
100, an integrated sliding layer fit system 70 can be achieved,
which improves helmet fit, user comfort, and can improve helmet
performance with respect to energy management, while simplifying
construction and decreasing cost. Performance of the helmet 30 can
be improved by combining the Sliding layer and the fit system, the
two components being joined or integrated to provide a more stable
fit for the helmet wearer as the wearer puts on the helmet, adjusts
helmet straps, takes the helmet off, or wears or conveys the
helmet. To the contrary, previous systems have not used a sliding
layer for actual fitting, but have instead relied on two separate
systems or components, an sliding layer component and a separate
and distinct fit system. In the present case, the foam or main body
of the helmet, which can be embodied in energy absorbing shell 40,
can float outside of the sliding layer fit system 70, suspended by
deformable elastomer connections 120 or other suitable
connections.
[0044] As shown in FIG. 1, the fit system 70, including the fit
member 80 and sliding layer 100, can be disposed within the energy
absorbing shell 40 with the outer surface 102 of the sliding layer
oriented towards the inner surface 46 of the energy absorbing shell
40. In some instances, an interface between the outer surface 102
of the sliding layer oriented towards the inner surface 46 of the
energy absorbing shell 40 can be spherical or substantially
spherical in shape so as to facilitate the relative movement, or
rotation of the energy absorbing shell 40 with respect to the
sliding layer 100 and the head of the user. Additionally, although
the term "spherical" is used with respect to the interface between
the energy absorbing shell 40 and the sliding layer 100, it will be
clear to one of ordinary skill in the art that the surfaces
involved at the interface, including surfaces 46, 104 need not be
full, complete spheres and that a portion of a spherical surface
can be used to the extent the portion is needed. Thus, where
"spherical" is used herein, the term can mean that the surface has
a substantially consistent radius of curvature throughout the
surface and in some embodiments to wherever the surface and layer
extends, but at least for a majority of the extent of the surface.
A substantially consistent radius of curvature means that the
radius of curvature is between 70%-100% of a constant radius of
curvature throughout the spherical surface, or within 30% of a
radius of curvature of a majority of the spherical surface. In
particular embodiments, the spherical surface can be a completely
consistent radius of curvature, or within 5% of a constant radius
of curvature. In other particular embodiments, the spherical
surface can have portions similar in shape to a typical headform
and other portions that have a substantially consistent radius of
curvature throughout the portions of the spherical surface. The
spherical surfaces, where used, may also be discontinuous and
include gaps between sections of a spherical surface within a
common spherical plane, or may be on different spherical
planes.
[0045] FIGS. 6A-6D show various views of an elastomeric member or
elastically deformable component 120 that can comprise a first end
122 configured or adapted to be coupled to the energy absorbing
shell 40 and a second end 124 configured or adapted to be coupled
to the sliding layer fit system 70, such as the attachment member
106 of the sliding layer 100. More specifically, FIG. 6A shows one
elastomeric member 120 that can comprise or be formed of rubber,
silicon, or other stretchable or elastically deformable material
that is biased to return back to its original shape after being
stretched. The elastomeric member 120 can comprise a first end 122
that can be coupled to the energy absorbing shell 40 with a pin
126, such as by having an opening or cut-out in the first end 122,
into which the pin 126 can be disposed.
[0046] The pin 126 can be formed of plastic, metal, wood, fiber, or
any other suitably strong and inexpensive material. The pin 126 can
comprise any suitable or advantageous shape for remaining coupled,
or directly attached, to the energy absorbing shell 40 and to the
elastomeric member 120 during impacts of the helmet 30. As such,
the pin 126 can remain coupled to the energy absorbing shell 40
while the elastomeric member 120 stretches and deforms, thereby
allowing the sliding layer 100 to slip, slide, or move relative to
the energy absorbing shell 40. As a non-limiting example, the pin
126 can comprise a shape that is elongate with a flat first end,
and a rounded or ball shaped end on a second end opposite the first
end.
[0047] The second end 124 of the elastomeric member 120 can be
opposite the first end 122. The second end 124 can be shaped or
formed to be mateably coupled, or directly attached, to one or more
of the openings 106 in the sliding layer 100. The second end 124
can optionally comprise a hooked or bent end 124 that can be
disposed within the opening 106 in the sliding layer 100. In other
instances, the attachment member 106 of the sliding layer 100 can
be a slot, clip, flange, hook, knob, protrusion, or other suitable
physical structure to which the second end 124 of the elastomeric
member 120 can be coupled. In other instances, the second end 124
can be chemically, thermally, or otherwise joined to the sliding
layer 100, such as with another pin 126 or other intermediate
structure or substance.
[0048] FIG. 6B shows a close-up view of a portion of the sliding
layer 100, with the second end 124 of the elastomeric member 120
being inserted through one of the openings 106 in the sliding layer
100.
[0049] FIG. 6C shows a view of the sliding layer 100 and the
elastomeric member 120 similar to that shown in FIG. 6B, but with
the second end 124 of the elastomeric member 120 rotated and
securely couple to the sliding layer 100, being seated within the
re-entrant opening 106. By being securely seated, the elastomeric
member 120 can can be pulled and placed in tension, elastically
deform, and permit or facilitate rotational energy management by
movement of the sliding layer 100 relative to the energy absorbing
shell 40, the head of the user, or both, while still remaining
securely attached to the sliding layer 100. Additionally, the
second end 124 of the elastomeric member 120 can also be unseated
or removed from the openings 106 in the sliding layer 100 by a user
or individual, such as to remove or replace the elastomeric member
120.
[0050] FIG. 6D shows a larger perspective view showing all of the
sliding layer fit system 70 from above the fit system 70. The
sliding layer fit system 70 is shown with four elastomeric members
120 coupled to four corresponding openings 106 in the sliding layer
100, with second ends 124 of the elastomeric members 120 coupled
to, or containing, pins 126 to be coupled to, or inserted within
openings of, a portion of the helmet 30, such as openings in the
energy absorbing shell 40.
[0051] FIG. 7A shows an elevational or side view of a rear or
backside of the fit system member 80 coupled to the fit system arms
108a and 108b of the sliding layer 100. FIG. 7A additionally shows
the helmet straps 60 coupled to, and threaded through, the fit
system member 80 to be coupled to the energy absorbing shell 40. A
rear portion 62 and a left portion 66 of the straps 60 is shown as
a single piece of webbing being threaded through the left cradle
wing 82c. Similarly, a rear portion 62 and a right portion 68 of
the straps 60 is shown as a single piece of webbing being threaded
through the right cradle wing 82c. The ends of the straps 60, both
the front portions 64 and the rear portion 62, shown at the upper
or top part of FIG. 7a can be coupled to the helmet 30.
[0052] FIG. 7B shows a side perspective view of an interior portion
of the sliding layer fit system 70 disposed within the energy
absorbing shell 40, with the straps 60 coupled to the helmet 30.
FIG. 7B also shows comfort padding 130 coupled to the inner surface
104 of the sliding layer 100, and the comfort padding 130 also
being disposed over the second ends 124 of the elastomeric members
120 and the attachment members 106 of the sliding layer 100. As
such, the wearer or user of the helmet 30 can enjoy a comfortably
fitting helmet 30 with the benefits of rotational impact energy
management through the integrated sliding layer fit system 70
without any discomfort from the hidden or covered components of the
system 70. Additionally, improved fit is also provided by having
the sliding layer 100 and the sizing provided by the fit system
member 80 integrated through the fit system arms 108. FIG. 7B also
shows the rear 62 left 66 portion of the strap 60 threaded through
the fit system member 80 at the rear or the helmet 40. Similarly,
the front 64 left 66 portion of the strap 60 is shown attached to
the helmet 30, such as by being coupled to the energy absorbing
shell 40, by passing behind the sliding layer 100, such as between
the outer surface 102 of the sliding layer 100 and the inner
surface 46 of the energy absorbing shell 40.
[0053] FIGS. 8A and 8B show additional detail by providing views of
the inside of the helmet 30, where the user's head will be disposed
within the helmet 30 when the helmet 30 is worn by the user. FIG. 8
shows the comfort liner or fit liner 130 can optionally be disposed
within, and coupled to the inner surface 104 of the Sliding layer
100, as well as to the inner surface 46 of the energy absorbing
shell 40. The comfort liner 130 can be made of textiles, plastic,
foam, polyester, nylon, or other suitable materials. The comfort
liner 130 can be formed of one or more pads of material that can be
joined together, or formed as discrete components, that can be
coupled to the helmet 30, such as to the energy absorbing shell 40,
the sliding layer 100, or both. The comfort liner 130 can be
releasably or permanently attached to the helmet 30, with an
attachment member, connector, or hook and loop fasteners 132. The
attachment members 132 can also optionally comprise an adhesive,
permanent adhesive, PSA, foam-core adhesive, tape, two-sided tape,
mounting foam adhesive, fastener, clip, cleat, cutout, tab, snap,
rivet, hog ring, or other interlocking surfaces, features, or
portions. As such, the comfort liner 130 can provide a cushion and
improved fit for the wearer of the helmet 30. When installed within
the helmet 30, the comfort padding 130 can be disposed over the
second ends 124 of the elastomeric member 120 and the attachment
members 106 of the sliding layer 100 to prevent the head of the
user from contacting the structures, which might create
uncomfortable areas due to contact with the user's head.
[0054] FIG. 8B shows the helmet 30 can further comprise pad
application zones 140 within the helmet 30, such as at an inner
surface 46 of the energy absorbing shell 40. In some instances, the
pad application zones 140 are locations at which the attachment
members 134 can be positioned within the helmet, such as on the
inner surface 46 of the energy absorbing shell 40, or on the inner
surface 104 of the sliding layer 100. In other instances, the pad
application zones 140 can comprise a location where a second
sliding layer 100 is disposed between the outer surface 102 of the
first sliding layer 100 and the inner surface 46 of the energy
absorbing shell 40. When the second sliding layer 100 is present,
the second sliding layer 100 can be coupled to the energy absorbing
shell 40 with elastomeric members 120, or can be in-molded or
integrally formed with the energy absorbing shell 40. In some
instances, the second sliding layer 100 cold be formed as a coating
applied to a portion of the helmet, such as energy absorbing shell
40, to help reduce friction between the sliding layer 100, and
whatever it is in contact with. Additionally, the sliding layer 100
may itself have a low enough coefficient of friction together with
whatever surface or surfaces it contacts that no additional layer,
cover, or treatment is needed or desirable.
[0055] Conventional helmet systems with sliding layers have been
limited to separate, discrete, or independent fit systems and
sliding layers, such as to one or more of vacuum molded and trimmed
sliding layers. The integrated sliding layer 100 and fit system 80
or integrated sliding layer fit system 70 described herein allows
for the sliding layer 100 to be part of, and work seamlessly with,
the fit system assembly 80. The integrated sliding layer and fit
system 70 can provide improved comfort to the user through a better
fit, as well as by simplifying a design of the helmet 30--by
reducing a number of parts included within the helmet 30. In some
instances, a better fit of the sliding layer 100 can also improve
energy management performance by increasing rotation between the
sliding layer 100 and the outer portion of the main helmet 30, such
as energy absorbing layer 40, and decreasing rotation between the
user's head and the sliding layer 100.
[0056] Thus, the integrated rotational impact attenuation and fit
system 70 can comprise one or more sliding layers 100 that can be
directly connected to, and interact with, a fit system member or
fit system cradle 80 for sizing the helmet 30 to a head of the
helmet wearer. In other words, the sliding layer 100 or portions
thereof, such as the fit system arms 108, can be coupled to, or
part of, the sizing of the helmet 30. Use of sliding layers 100
within a helmet 30 to assist in energy management, such as during
collisions, can be achieved by facilitating rotational movement,
and providing energy management through rotational movement within
the helmet 30 and relative to the user's head. In addition to the
rotational movement and energy management provided by the sliding
layers 100, the helmet 30 can also facilitate other types of
movement and energy management, such as translational movement, and
as such, rotational energy management is included by way of example
and not by limitation.
[0057] Where the above examples, embodiments and implementations
reference examples, it should be understood by those of ordinary
skill in the art that other helmet and manufacturing devices and
examples could be intermixed or substituted with those provided. In
places where the description above refers to particular embodiments
of helmets and customization methods, it should be readily apparent
that such components may be comprised of any shape, size, style,
type, model, version, class, grade, measurement, concentration,
material, weight, quantity, and/or the like consistent with the
intended purpose, method and/or system of implementation and a
number of modifications may be made without departing from the
spirit thereof and that these embodiments and implementations may
be applied to other to helmet customization technologies as well.
Accordingly, the disclosed subject matter is intended to embrace
all such alterations, modifications, and variations that fall
within the spirit and scope of the disclosure and the knowledge of
one of ordinary skill in the art, together with all changes that
come within the meaning of, and range of equivalency of, the
claims. The presently disclosed embodiments are, therefore, to be
considered in all respects as illustrative and not restrictive.
* * * * *