U.S. patent application number 12/296265 was filed with the patent office on 2009-10-08 for air frames for outdoor goods.
This patent application is currently assigned to THE COLEMAN COMPANY, INC.. Invention is credited to John P. Barnett, Tracy A. Beehn, David L. Berdan, Timothy E. Daniel, Daniel D. DeBrunner, Jake L. Hillard, Trevor J. Hinz, Mark A. Hrubant, Derrick D. Lenz, Duane D. Marshall, Gail R. Matheus, Jason T. McClintock, Susan L. Michaelis, Michael Wayne Peterson, Mitchell L. Wilgus.
Application Number | 20090249700 12/296265 |
Document ID | / |
Family ID | 38581838 |
Filed Date | 2009-10-08 |
United States Patent
Application |
20090249700 |
Kind Code |
A1 |
Peterson; Michael Wayne ; et
al. |
October 8, 2009 |
AIR FRAMES FOR OUTDOOR GOODS
Abstract
A backpack (160) with an air frame (162). The backpack includes
a storage compartment, an air frame (162), and at least one strap
(168) for securing the bag to a person. The air frame (162)
includes an air bladder, which stiffens as it is inflated. The air
frame (162) may include portions that are individually inflatable,
and a pump (26) may be included for inflating the air frame (162).
The backpack (160) may include inflatable portions (22) designed to
provide support to specific portions of a user's body.
Inventors: |
Peterson; Michael Wayne;
(Park City, KS) ; Berdan; David L.; (Andover,
KS) ; Hinz; Trevor J.; (Wichita, KS) ;
Barnett; John P.; (Derby, KS) ; McClintock; Jason
T.; (Wichita, KS) ; Michaelis; Susan L.;
(Wichita, KS) ; Wilgus; Mitchell L.; (Andover,
KS) ; Lenz; Derrick D.; (Wichita, KS) ;
Marshall; Duane D.; (Wichita, KS) ; Matheus; Gail
R.; (Towanda, KS) ; Hillard; Jake L.;
(Wichita, KS) ; DeBrunner; Daniel D.; (Wichita,
KS) ; Hrubant; Mark A.; (Wichita, KS) ; Beehn;
Tracy A.; (Rudolph, OH) ; Daniel; Timothy E.;
(Wichita, KS) |
Correspondence
Address: |
LEYDIG, VOIT & MAYER, LTD.;(SEATTLE OFFICE)
TWO PRUDENTIAL PLAZA, SUITE 4900
CHICAGO
IL
60601-6731
US
|
Assignee: |
THE COLEMAN COMPANY, INC.
Wichita
KS
|
Family ID: |
38581838 |
Appl. No.: |
12/296265 |
Filed: |
April 6, 2007 |
PCT Filed: |
April 6, 2007 |
PCT NO: |
PCT/US07/66142 |
371 Date: |
June 5, 2009 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
60744398 |
Apr 6, 2006 |
|
|
|
Current U.S.
Class: |
52/2.17 ;
224/633; 224/637; 224/642; 297/452.41; 5/413AM; 5/706; 52/2.11;
52/2.18 |
Current CPC
Class: |
A45F 3/08 20130101; A45F
2003/127 20130101; E04H 2015/203 20130101; A45C 13/021 20130101;
E04H 15/20 20130101; A45F 2003/122 20130101; E04H 2015/201
20130101; E04H 15/06 20130101 |
Class at
Publication: |
52/2.17 ;
224/633; 224/642; 224/637; 297/452.41; 5/706; 5/413.AM; 52/2.11;
52/2.18 |
International
Class: |
E04H 15/20 20060101
E04H015/20; A45F 3/08 20060101 A45F003/08; A47C 7/02 20060101
A47C007/02; A47C 27/08 20060101 A47C027/08; A47G 9/08 20060101
A47G009/08; E04H 15/36 20060101 E04H015/36; E04B 1/34 20060101
E04B001/34 |
Claims
1. A backpack comprising: a storage compartment having a back
portion; an air frame in or on the back portion; and at least one
strap for securing the backpack to the body of a person.
2. The backpack of claim 1, wherein the back portion has a lumbar
region, and the air frame is located at the lumbar region; and
further comprising a second air frame located on the back portion
above the lumbar region.
3. The backpack of claim 2, further comprising a valve connected to
the air frame, the valve configured to receive air into the air
frame.
4. The backpack of claim 2, further comprising a built-in pump
installed on the backpack and for inflating the air frame, the pump
being fluidly connected to the air frame.
5. The backpack of claim 2, wherein the air frame and the second
air frame are fluidly separate from one another.
6. The backpack of claim 2, wherein the air frame and second air
frame are fluidly connected to one another.
7. The backpack of claim 1, wherein the air frame comprises: an
outer ring; and at least one rib extending across the outer
ring.
8. The backpack of claim 7, wherein the back portion has a lumbar
region, and wherein said at least one rib extends horizontally
across the lumbar region.
9. The backpack of claim 7, wherein said at least one rib extending
across the outer ring extends vertically across the outer ring.
10. The backpack of claim 1, wherein the air frame includes at
least one inflatable stay.
11. The backpack of claim 1, wherein the air frame includes two
inflatable stays extending along sides of the back portion.
12. The backpack of claim 1, wherein the air frame includes an
opening extending vertically throughout a portion of the air
frame.
13. The backpack of claim 12, wherein the opening extends along a
spine region of the backpack.
14. The backpack of claim 1, wherein the air frame is shaped such
that, when the air frame is inflated, the back portion comprises a
curved surface matching the thoracic region of a person's
spine.
15. The backpack of claim 9, wherein the air frame includes a
plurality of horizontal ribs aligning with vertebrae of the
thoracic and lumbar regions of the person's back.
16. The backpack of claim 1, wherein the air frame is shaped such
that, when the air frame is inflated, the back portion comprises a
curved surface matching the thoracic and lumbar regions of the
person's spine.
17. The backpack of claim 16, wherein the air frame includes a
plurality of diagonal ribs extending from a spinal region of the
back portion outward toward sides of the back portion.
18. The backpack of claim 1, further comprising a built-in pump
installed on the backpack and for inflating the air frame, the pump
being fluidly connected to the air frame.
19. The backpack of claim 18, wherein a control for the pump is
located on the strap.
20. The backpack of claim 18, wherein the pump extends from a
bottom portion of the backpack.
21. The backpack of claim 1, further comprising: a first pump
installed on the backpack and for inflating the air frame; a second
pump; wherein the air frame comprises: a lumbar region fluidly
connected to the first pump; and a second region fluidly separated
from the lumbar region and fluidly connected to the second
pump.
22. The backpack of claim 1, wherein the air frame is hermetically
sealed.
23. The backpack of claim 22, wherein the air frame comprises: a
plurality of ribs that, when the air frame is against a person's
back, align with vertebrae of the thoracic and lumbar regions of
the person's back; and a lumbar support that, when the air frame is
against a person's back, aligns with the lumbar portion of the
person's spine.
24. The backpack of claim 1, the air frame further comprising: a
plurality of individual chambers.
25. The backpack of claim 24, wherein the individual chambers are
fluidly separated.
26. The backpack of claim 24, wherein each of the individual air
chambers is inflatably adjustable.
27. The backpack of claim 1, further comprising: a belt configured
to wrap around a person's hips wherein the belt includes an air
chamber, the air chamber extending along at least a portion of the
belt.
28. The backpack of claim 1, the air frame comprising: a plurality
of inflatable segments; a plurality of non-inflatable segments; and
wherein there is at least one non-inflatable segment between a pair
of inflatable segments.
29. The backpack of claim 28, wherein non-inflatable segments and
inflatable segments are alternated so as to form a sequence of at
least three pairs, each pair having an inflatable segment and a
non-inflatable segment.
30. The backpack of claim 28, wherein the inflatable segments are
collectively inflatable.
31. The backpack of claim 28, wherein the inflatable segments are
individually inflatable.
32. The backpack of claim 1, further comprising: a belt configured
to wrap around a person's hips; the air frame comprising a
plurality of inflatably adjustable air chambers; and the belt
comprising a plurality of inflatably adjustable air chambers.
33. The backpack of claim 32, the strap comprising a plurality of
inflatably adjustable air chambers.
34. A shelter, comprising: a plurality of rigid legs; and an
inflatable top including, for each of the rigid legs, a sleeve for
receiving the leg.
35. The shelter of claim 34, the inflatable top comprising a
plurality of ribs extending parallel to one another.
36. A shelter, comprising: an air frame; and a covering supported
by the air frame.
37. The shelter of claim 30, wherein the air frame includes two
braces intersecting at a crossing at or near the top of the air
frame.
38. The shelter of claim 31, wherein a portion of the covering
extends under the crossing.
39. The shelter of claim 30, wherein the air frame comprises a
plurality of legs.
40. The shelter of claim 30, wherein the shelter includes a
plurality of sides, wherein the air frame comprises a plurality of
arches configured along the sides, and wherein arches on
consecutive sides are connected at their bottom portions.
41. The shelter of claim 30, wherein the air frame includes a
plurality of air channels forming a crossed pattern for supporting
the covering.
42. The shelter of claim 35, wherein the covering includes a
door.
43. The shelter of claim 30, wherein the air frame comprises: a
plurality of arches; a central rib; and wherein the central rib
connects the arches together at or near the top of the arches.
44. The shelter of claim 30, wherein the covering includes an
openable structure hingedly attached to the shelter, the openable
structure having a shape, and the openable structure comprising an
openable structure air frame for maintaining the shape.
45. The shelter of claim 30, the air frame including a pair of
arches, each arch extending along opposing sides of the shelter
from a low point to a high point, wherein the high points of the
arches are located on or near the same side of the shelter.
46. The shelter of claim 30, wherein the shelter includes two
opposing sides, and wherein the air frame includes an L-shaped
portion extending along each side.
47. The shelter of claim 40, wherein the air frame includes a cross
bar extending between the L-shaped portions.
48. A love seat, comprising: a seating surface having a first air
bladder; a seat back connected edgewise to the seating surface and
having a second air bladder; and the first bladder being in fluid
communication with the second bladder.
49. An airbed, comprising: a puncture resistant cover having at
least one chamber; and at least one air bladder removably located
inside each chamber.
50. The airbed of claim 49, wherein the puncture resistant cover
comprises a plurality of said chambers.
51. The airbed of claim 44, wherein an air bladder is located
inside each chamber.
52. A sleeping bag, comprising: a bag comprising fabric; and an
airbed attached to a portion of the bag.
53. The sleeping bag of claim 45, wherein the airbed is removably
attached to the bag by at least one of the set of hooks, snaps,
hook and loop closures, or clasps.
Description
[0001] This application claims priority to U.S. provisional patent
Application Ser. No. 60/774,398, filed Apr. 6, 2006, and
incorporated herein by reference.
BACKGROUND OF THE INVENTION
[0002] The use of outdoor goods often augments popular recreational
activities, such as camping, hiking, fishing, backpacking, sporting
events, and other activities. For example, a person may carry
important items in a backpack, and use a tent and sleeping back
while camping.
SUMMARY OF THE INVENTION
[0003] The following presents a simplified summary of some
embodiments of the invention in order to provide a basic
understanding of the invention. This summary is not an extensive
overview of the invention. It is not intended to identify
key/critical elements of the invention or to delineate the scope of
the invention. Its sole purpose is to present some embodiments of
the invention in a simplified form as a prelude to the more
detailed description of some embodiments that are presented
later.
[0004] In accordance with an embodiment, a backpack is provided.
The backpack includes at least one air bladder, the inflation of
which forms a frame for the backpack. The backpack may include
other items, such as a pump or valve for inflating the air
bladder.
[0005] In accordance with another embodiment, a shelter is
provided. The shelter includes an air frame, which may be inflated
until rigid or semi-rigid so as to give structural support to the
shelter.
[0006] In accordance with another embodiment, a shelter that may be
attached to an automobile or motorhome is provided. The shelter
includes an inflatable frame which may take the place of or
supplement a frame made of rigid or semi-rigid frame members. The
inflation of the frame until rigid or semi-rigid may provide
structural support to the shelter.
[0007] In accordance with another embodiment, a tent is provided.
The tent may include an inflatable frame which may take the place
of or supplement a frame made of rigid or semi-rigid frame members.
The inflation of the frame until rigid or semi-rigid may provide
structural support for the tent.
[0008] In accordance with another embodiment, a shelter that may be
attached to a boat is provided. The shelter includes an inflatable
frame which may take the place of or supplement a frame made of
rigid or semi-rigid frame members. The inflation of the frame until
rigid or semi-rigid may provide structural support to the
shelter.
[0009] In accordance with another embodiment, a love seat is
provided. The love seat includes a lower seating surface and a seat
back, each of which includes an inflatable bladder. The bladders of
the seating surface and the seat back may be fluidly connected. The
love seat may also include an inflatable lumbar bladder configured
to provide lumbar support. The lumbar bladder may or may not be in
fluid communication with other bladders of the love seat.
[0010] In accordance with an embodiment, an airbed is provided. The
airbed includes an air bladder, which may be made of lightweight
material, and a puncture resistant cover for the air bladder.
[0011] In accordance with an embodiment, an airbed is provided. The
airbed includes a cover that may include a plurality of chambers,
each for receiving an air bladder. If one of the air bladders
breaks, that bladder may be replaced individually.
[0012] In accordance with an embodiment, a sleeping bag is
provided. The sleeping bag has an airbed received in a bottom
sleeve of the sleeping bag. The airbed for the sleeping bag may
have a built-in pump for inflating the airbed. The airbed may be
sewn into place in the sleeping bag, or may be mounted into a
sleeve of the sleeping bag so that the airbed may be removed or
replaced.
[0013] Other features of the invention will become apparent from
the following detailed description when taken in conjunction with
the drawings, in which:
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] FIG. 1 is a back perspective view of a backpack in
accordance with an embodiment;
[0015] FIG. 2 is a back perspective view of a backpack in
accordance with another embodiment;
[0016] FIG. 3 is a diagrammatic representation of a pair of
inflatable stays that may be utilized for internal support of an
internal backpack in accordance with another embodiment;
[0017] FIG. 4 shows a rear view of an air frame for a backpack in
accordance with another embodiment;
[0018] FIG. 5 shows a back perspective view of an internal frame
backpack in accordance with another embodiment;
[0019] FIG. 6 shows a back perspective view of an air frame for a
backpack in accordance with another embodiment;
[0020] FIG. 7 is a side view of the air frame of FIG. 6;
[0021] FIG. 8 shows a back perspective view of an air frame for a
backpack in accordance with another embodiment;
[0022] FIG. 9 is a side view of the air frame of FIG. 8;
[0023] FIG. 10 shows a partial side view of an air frame for a
backpack in accordance with another embodiment;
[0024] FIG. 11 shows a partial side view of an air frame for a
backpack in accordance with another embodiment;
[0025] FIG. 12 shows back perspective view of an air frame for a
backpack in accordance with another embodiment;
[0026] FIG. 13 shows a back perspective view of an air frame for a
backpack in accordance with another embodiment;
[0027] FIG. 14 shows a side view of the air frame of FIG. 13;
[0028] FIG. 15 shows a back perspective view of an air frame for a
backpack in accordance with another embodiment;
[0029] FIG. 16 shows a back perspective view of a backpack in
accordance with another embodiment;
[0030] FIG. 17 shows a back perspective view of a backpack in
accordance with another embodiment;
[0031] FIG. 18 shows a back perspective view of a backpack in
accordance with another embodiment;
[0032] FIG. 19 shows a side perspective view of the backpack of
FIG. 18, as worn by a person;
[0033] FIG. 20 shows a back perspective view of a backpack in
accordance with another embodiment;
[0034] FIG. 21 shows a partial side cutaway view of an airframe of
the backpack of FIG. 20;
[0035] FIG. 22 shows a side perspective view of a shelter in
accordance with an embodiment;
[0036] FIG. 23 shows a side perspective view of a shelter in
accordance with another embodiment;
[0037] FIG. 24 shows a side perspective view of a shelter in
accordance with another embodiment;
[0038] FIG. 25 shows a side perspective view of a shelter in
accordance with another embodiment;
[0039] FIG. 26 shows a side perspective view of a shelter in
accordance with another embodiment;
[0040] FIG. 27 shows a side perspective view of a tent in
accordance with an embodiment;
[0041] FIG. 28 shows a side perspective view of a tent in
accordance with another embodiment;
[0042] FIG. 29 shows a side view of the tent of FIG. 28;
[0043] FIG. 30 shows a rear perspective view of a shelter attached
to an automobile in accordance with an embodiment;
[0044] FIG. 31 shows a side perspective view of a shelter attached
to an automobile in accordance with another embodiment;
[0045] FIG. 32 shows a top perspective view of the shelter of FIG.
31;
[0046] FIG. 33 shows a rear perspective view of a shelter attached
to an automobile in accordance with another embodiment;
[0047] FIG. 34 shows a rear perspective view of a shelter in
accordance with another embodiment;
[0048] FIG. 35 shows a rear perspective view of a shelter in
accordance with another embodiment;
[0049] FIG. 36 shows a side perspective view of a love seat in
accordance with an embodiment;
[0050] FIG. 37 shows a rear perspective view of an airbed partially
inserted into a cover in accordance with an embodiment;
[0051] FIG. 38 shows a rear perspective view of an airbed in
accordance with an embodiment, with one bladder of the airbed
partially removed from a cover of the airbed;
[0052] FIG. 39 shows a rear perspective view of an airbed in
accordance with an embodiment;
[0053] FIG. 40 shows an side cutaway view of the airbed of FIG.
39;
[0054] FIG. 41 shows a rear perspective view of a boat having an
inflatable cover in accordance with an embodiment;
[0055] FIG. 42 shows a side view of a boat having an inflatable
cover in accordance with another embodiment;
[0056] FIG. 43 shows a side view of a boat having an inflatable
cover in accordance with another embodiment;
[0057] FIG. 44 shows a rear perspective view of a boat having an
inflatable cover in accordance with another embodiment;
[0058] FIG. 45 shows a rear perspective view of a boat having an
inflatable cover in accordance with another embodiment;
[0059] FIG. 46 shows a side perspective view of a boat having an
inflatable cover in accordance with another embodiment;
[0060] FIG. 47 shows a bottom perspective view of a sleeping bag
having a built-in airbed in accordance with an embodiment;
[0061] FIG. 48 shows a rear perspective view of a sleeping bag
having a built-in airbed in accordance with another embodiment;
[0062] FIG. 49 shows a bottom view of the sleeping bag of FIG. 48;
and
[0063] FIG. 50 shows a rear perspective view of a sleeping bag
having a sleeve into which an airbed is inserted in accordance with
an embodiment.
DETAILED DESCRIPTION
[0064] In the following description, various embodiments of the
present invention will be described. For purposes of explanation,
specific configurations and details are set forth in order to
provide a thorough understanding of the embodiments. However, it
will also be apparent to one skilled in the art that the present
invention may be practiced without the specific details.
Furthermore, well-known features may be omitted or simplified in
order not to obscure the embodiment being described. In addition,
to the extent that orientations of the embodiments are described,
such as "top," "bottom," "front," "rear," "right," and the like,
the orientations are to aid the reader in understanding the
embodiment being described, and are not meant to be limiting.
Backpacks
[0065] In accordance with an embodiment, an airframe is provided
for a backpack. As is known, there are basically two types of
backpacks: those that have external frames, and those that have
internal frames. External frame packs are easily recognizable by a
rigid metal or plastic frame on the outside of the pack. The
shoulder and hip straps usually attach directly to this frame. The
main compartment of the pack is also attached to the frame.
[0066] Internal frame packs have a stiff, load-bearing frame
incorporated into, and integral to, the main body of the backpack,
with a harness/suspension system attached to this integral pack
body/frame. The stiff and/or rigid, load-bearing elements of the
frame are commonly comprised of, singly or in combination thereof,
metal/polymeric/composite sheets, metal/polymeric/composite bars
(commonly called stays), and metal/polymeric/composite rods/tubes.
The backpack load carrying compartment can be of numerous designs
with features specific to the intended end use.
[0067] In accordance with an embodiment, an air frame is utilized
for the frame of a backpack. By "air frame," we mean an air bladder
configured to receive pressurized air. When turgid, the air frame
serves as a structure for a device (in this embodiment, a
backpack).
[0068] For an internal frame pack, the air frame replaces
conventional metal/polymeric/composite components. Such an air
frame may be used singly, or in combination thereof, with
conventional metal/polymeric/composite components depending upon
the requirements of the intended end use of the backpack.
[0069] FIG. 1 is a back perspective view of a backpack 20 in
accordance with an embodiment. For the backpack 20, two air
chambers 22, 24 are provided at, and just above, respectively, of
the lumbar region of the backpack. One or two pumps 26 (only one is
shown in FIG. 1) may be provided for inflating the air chambers 22,
24 to a desired pressure. Although a hand actuated bulb-style pump
26 is shown in FIG. 1, other types of pumps may be used for
inflating the air chambers 22, 24, including, but not limited to, a
foot pump or an electric pump. In addition, as an alternative to
having an integral pump, a valve may be provided to which a pump is
attached.
[0070] The air chambers 22, 24 may be in fluid communication with
each other, so that they are inflated via the same pump (or valve),
or may be separate so that they may be inflated to different
pressures. If separate, the two chambers may each have a pump or a
valve.
[0071] In accordance with an alternate embodiment, the air chambers
22, 24 may be air chambers without a valve or other opening. Such
fixed air chambers may be pressurized during manufacturing and
maintain the pressure for the life of the product. Thus, a pump or
a valve is not needed. However, by providing a pump such as the
pump 26, the amount of lumbar support provided by the air chambers
22, 24 is adjustable.
[0072] The air chambers 22, 24 and other air frames described
herein may be formed of a suitable air-tight material, such as a
polyvinylchloride, or any other suitable material. In an
embodiment, the air chamber is a strong, durable, lightweight
material such as polyurethane, polyethylene, polyolefin, polyester
films (e.g., MYLAR), polytetraflouroethylene, or a lightweight
multi-laminate structure. Other examples of suitable materials and
suitable pressures for inflating the air frames described herein
can be found in U.S. Pat. No. 7,118,487, U.S. Pat. No. 6,263,617,
and U.S. Provisional Pat. App. No. 60/130,549. The air frame can be
used alone or as a bladder surrounded by a protective sleeve.
[0073] For the embodiment shown in FIG. 1, the air chambers 22, 24
may be positioned so as to directly contact the back of a user, or
other material may be arranged between the air chambers 22, 24 and
the back of the user. This other material may be, for example, one
or more flexible plastic panels, fabric, open or closed cell foam,
or another suitable material. In addition, although shown as
chambers with smooth outer surfaces, the chambers 22, 24 may be
suitably arranged or patterned so as to promote air circulation
where the chamber contacts a user. As an example, ribs may be
provided on an outer surface of the air chambers 22, 24 so as to
promote an air chimney effect for promoting air flow along the back
of the user. In addition, the air chambers 22, 24 may be made of
sufficient thickness to provide controllable thermal
characteristics. For example, thin air chambers (e.g., less than
3/8 inches thick) are inherently insulative and thick air chambers
(e.g., greater than 3/8 inches thick) are inherently thermally
conductive via internal convective currents. Thus, air chambers may
be strategically placed to increase a user's comfort.
[0074] FIG. 2 shows an internal frame backpack 30 having an
internal air frame 32 that is utilized in place of
metal/polymeric/ceramic frame elements for the backpack. In the
embodiment shown in the drawings, the internal air frame 32
includes an outer ring 34 and internal ribs 36. One or more of the
ribs may extend horizontally, with others extending diagonally. A
lower rib 38 is provided in the lumbar section of the backpack 30,
and provides lumbar support for a user. The internal air frame 32
is preferably mounted on an inside of a backpack, but such a frame
may alternatively be mounted on an outside of the frame. In the
embodiment shown in the drawing, the air frame 32 is inflated as
one unit, but parts, such as the lower rib 38, may be inflated
separately.
[0075] FIG. 3 is a diagrammatic representation of a pair of
inflatable stays 40, 42 that may be utilized for internal support
of an internal backpack. The inflatable stays 40, 42 are utilized
in the position of conventional metal or plastic stays in an
internal frame backpack. Valves 44 may be provided for inflation of
the inflatable stays 40, 42. If desired, the inflatable stays 40,
42 may be inflated to different pressures depending upon the
desired rigidity of the backpack. Variations in pressure may also
be utilized based upon the load supported by the backpack and/or
individual preferences of a user.
[0076] FIG. 4 shows a plan view of an air frame 50 in accordance
with another embodiment. Like the air frame 32 in FIG. 2, the air
frame 50 may be positioned on the inside of an internal frame
backpack, such as the backpack 30. The air frame 50 includes
vertical ribs 52. In addition, a lower rib 54 is made larger than
other ribs to support the lumbar section of a user. The vertical
ribs 52 promote an air chimney effect on the back of the user,
effectively permitting air to flow along the back of the user and
outward above the shoulders of the user.
[0077] FIG. 5 shows an internal frame backpack 60 in accordance
with another embodiment. The internal frame backpack 60 includes an
air frame 62 having a single opening 64. The opening extends
vertically most of the length of the air frame 62, providing an air
chimney effect for providing air circulation for the back, and more
specifically the spine, of a user.
[0078] As with the embodiment shown in FIG. 1, each of the air
frames 38, 50, 60 and the inflatable stays 40, 42 may be encased in
or behind fabric, foam, or other suitable materials. In addition,
if desired, a semi-rigid or rigid plastic reinforcing frame may b e
provided for additional support. In alternate embodiments, the air
frames may be positioned along the back or exterior of the
backpack.
[0079] In addition, each of the air frames 32, 50, 62, and the
inflatable stays 40, 42 may be provided as fixed, pre-pressurized,
turgid air chambers, or may be provided with a pump or valve,
permitting a user to adjust the pressure as desired. As such, a
user can change structural support according to load, terrain,
and/or activity level. The air frames may be made flexible by
slightly reducing air pressure. A flexible air frame enables a user
to engage in high-output activities (ski touring, alpine climbing,
adventure racing) without restricting the body's movements. In
addition, allowing the air frames or stays to be inflatable permits
the air chambers for such components to be deflated for efficient
storage.
[0080] FIG. 6 shows another air frame 70 in accordance with an
embodiment. The air frame 70 is curved so as to provide proper
support for a thoracic region of a user's spine. A side view of
this curved configuration is shown in FIG. 7.
[0081] In accordance with an embodiment, the air frame 70 includes
ribs 72 which align with and support individual vertebrae along the
thoracic and lumbar regions of a user. As such, the air frame 70
provides ergonomic support for the spine of a user while the user
is wearing a backpack having such an air frame 70. The ribs 72 may
inflate, or may be flexible protrusions (for example, made from
rubber) on the exterior of the air frame 70.
[0082] FIG. 8 shows another air frame 80 for a backpack in
accordance with an embodiment. Like the air frame 70, the air frame
80 provides ergonomic support for the back of a user. As is shown
in a side view in FIG. 9, the air frame 80 includes a lumbar
support region 82, and is curved so as to appropriately fit and
support the thoracic and lumbar regions of a user. In addition, as
can be seen in FIG. 8, diagonal ribs 84, 86 are provided on
opposite sides of the spine for helping to align and support the
spine of a user in the thoracic and lumbar regions of the spine.
Again, the rib 84, 86 may inflate or may be flexible
protrusions.
[0083] In the embodiment shown in FIG. 8, the air frame 80 includes
a pump 88 that extends upward along one of the shoulder straps 89
for the backpack into which the air frame 80 is placed. This
feature allows a user to grasp the shoulder strap 89 and actuate
the pump 88 to increase or decrease the pressure provided by the
air frame 80. In this manner, a user may adjust the air frame 80 to
appropriately fit the user's back while the frame is on the user's
back.
[0084] Similar to the air frame 80, the air frame 90 shown in FIG.
12 includes a lumbar support 92 and ribs 94. However, the air frame
90 includes a pump 96 that extends from a bottom portion and may
be, for example, attached to a belt of a backpack instead of a
shoulder strap. In addition, the ribs 94 for the air frame 90
extend all the way across the air frame. However, such ribs 94 can
also provide appropriate support for individual vertebrae in a
thoracic and/or lumbar section of a backpack.
[0085] FIG. 13 shows yet another air frame 100, shaped similar to
the air frames 80, 90. However, the air frame 100 includes
separated ribs 102, 104, similar to the air frame 80. In addition,
the air frame 100 includes two separate pumps 106, 108 for
inflating the lumbar region of the airframe, and the remaining
portion of the air frame, respectively. As an example, the pump 108
may inflate an air bladder extending the entire length of the air
frame 100, and the pump 106 may inflate a second air bladder 109
located just at the lumbar region. Alternatively, the first air
bladder may extend only down to the lumbar region. The two regions
may be arranged in different ways.
[0086] FIG. 15 shows another air frame 110 having a fixed air
chamber (i.e., an air chamber that has a fixed pressure and not
having a pump). The air frame 110 includes a lumbar support 112 and
ribs 114 for supporting individual vertebrae.
[0087] In accordance with an embodiment, an air frame may be
provided with a number of smaller, individual chambers. Such an air
chamber may be shaped like any of the previously-described air
frames, or may be designed as desired to give a particular
effect.
[0088] If individual chambers are used, the separate chambers may
be utilized to adjust an air frame to the contours of the body of a
user, and/or to adjust the frame to handle compression at
particular parts of the air frame. The individual chambers may be
of fixed pressure or may have pressure that is adjustable by a user
(e.g., via a pump).
[0089] Individual chambers may also be arranged to distribute
weight of a backpack, or conform to the myriad of body shapes with
minimal compression. For example, air chambers may be used in a
waist belt to evenly distribute weight around the hips. Such pads
will automatically conform to a user's shape because of the
flexible nature of air chambers. In contrast, foam waist belts
require tight cinching to compress the foams to the body's
shape.
[0090] As shown in FIG. 10, an air frame 120 may include
non-inflatable segments 122 between inflatable segments 124. The
inflatable segments 124 may be inflated to fit against the contours
of a user's body. Each of these inflatable segments 124 may be
individually inflatable or may be commonly inflatable.
[0091] FIG. 11 shows another air frame 130, or a section of an air
frame, having non-inflatable segments 132 separated by inflatable
segments 134. The non-inflatable segments 132 are positioned to
support a load for a backpack, for example, in an area adjacent to
a hip belt for a user. The air segments 134 are designed to take
shock between the non-inflatable segments 132 and enable hip
rotation that occurs during walking. Again, the inflatable segments
134 may be individually or collectively inflated.
[0092] FIG. 16 shows an air frame 140 on a backpack 142. The air
frame 140 includes a plurality of individually adjustable chambers
144 positioned up and down the back of the backpack 142 and even
more chambers 146 positioned on a belt for the backpack. The
chambers 144 include large pouches 148 aligned to rest on opposite
sides of a user's spine, and connecting channels 149. The
connecting channels 149 allow the pouches 148 to inflate to equal
pressure. Locating the pouches 148 on opposite sides of a user's
spine removes weight from a user's spine. Each of these chambers
may be individually adjusted or may be adjusted in sets so as to
adjust the contour of the air frame 140 to the back of a user and
to adjust a load in the backpack 142 appropriately to the back of a
user. By adjusting individual chambers, a user may change the load
transfer efficiency according to a load, terrain, and/or activity
level.
[0093] FIG. 17 shows another backpack 150 having an air frame 152.
The air frame 152 extends over the entire back of the backpack 150
and includes on the back of the air frame individually adjustable
chambers 154 that are similar to the chambers 144 in FIG. 16.
[0094] FIG. 18 shows a backpack 160 having an air frame 162. The
air frame 162 includes an inflatable back portion 164 having ribs
166. In addition, chambers may be provided in shoulder straps
(e.g., 168) and along a hip belt 169. Each of these separate air
chambers 164, 166, 168 and/or 169 may be separately inflatable. In
accordance with an embodiment, the backpack 160 may be placed on
the user as shown in FIG. 19, and each of the chambers may be
inflated so as to fit the backpack appropriately to the user. The
backpack 160 may be filled, and thus the load in the backpack may
be appropriately displaced as the chambers are inflated. A user
may, for example, deflate a chamber where there is too much
pressure on the user's body, thus removing some pressure from that
area, and inflate a chamber where it appears that there is a
disproportionately small amount of load placed on the body.
[0095] FIGS. 20 and 21 show yet another backpack 170 having an air
frame 172. The air frame 172 includes a plurality of air chambers
174, each of which includes a non-adjustable air pocket. These air
chambers provide ergonomic support for the back of a user.
[0096] The air frames for the backpacks described above provide a
number of benefits. First, the air frames are lighter than
conventional stays, and thus reduce the overall weight of the
backpack. Second, the amount of air put into an air frame may be
adjustable, permitting a user to adjust the stiffness of the
backpack as desired. In addition, as described above, use of an air
frame permits a load to be evenly distributed or managed by a user.
The air frame may also be utilized for air circulation management
by strategically placing air chambers so as to enhance airflow
between the chambers to increase a user's comfort.
[0097] In addition, the air frame may be properly adjusted for load
support. The air frame also provides cushioning and shock
absorption and vibration dampening. Air chambers of an appropriate
thickness can provide convection currents or insulation, thus
providing temperature management.
[0098] An air frame may be used to align the spine in an ergonomic
manner. An air frame may include chambers that permit a waist belt
or shoulder belt to be inflatable to help fit the contours of a
user's body, to distribute load, and to cushion the body of a
user.
[0099] An air frame may also be used to increase the waterproof
features of a backpack. Air chambers are inherently non-absorptive,
enhancing wet-serviceability because of reduced water absorption
from sweat, rain or snow. An air frame of an appropriate size could
aid in floating of a backpack.
[0100] In accordance with another embodiment, inflatable air
chamber(s) may be incorporated inside of a compartment of a
backpack to replace or minimize the use of the current compression
straps. Compression straps are a feature of an internal frame
backpack and allow a user to compress the backpack around loaded
equipment to provide a tight and stable load. When there is not
enough equipment in the backpack to fill it to maximum capacity,
the compression straps close up that extra space, preventing
undesirable load sway, or pack float. To replace such straps,
adjustable chambers may be provided on the inside of a pack to
permit a user to inflate the chambers as needed to fill a volume of
a compartment of a backpack. Air chambers easily conform and fill
the voids of a backpack's internal contents, thereby reducing
shifting of the contents and making the load easier and more
efficient to carry.
[0101] Inflatable air chamber(s) may also be incorporated inside of
a compartment of a backpack or another case to replace the use of
foams to protect the contents. For example, air chambers may be
used to protect the contents of camera bags, digital music player
cases, sunglasses cases, GPS cases, and other devices.
[0102] Chambers in such cases or backpacks may be fixed pressure
(OEM) or adjustable by a user (e.g., via a pump). Air chambers
easily conform or fill the voids of the inside of a case or
backpack, thereby effectively securing the items and reducing the
likelihood of damage. Air chambers also protect contents from
external shock and compression. Air chambers are inherently
waterproof, enhancing wet environment protection for a case's
contents. In addition, air chambers are inherently non-absorptive,
enhancing wet-serviceability (e.g., reducing wet absorption from
sweat, rain, and/or snow). Air chambers are also inherently
insulative, thereby protecting the pack/case's contents from
temperature extremes.
Shelters
[0103] Another area in which air frames may be used is in shelters.
An example of a shelter 180 is shown in FIG. 22. For the shelter
shown in FIG. 22, an air frame 182 is provided in the form of four
arches 184 connected together by an X-shaped cross brace 186 at the
top. The arches 184 and the cross brace 186 are of sufficient
diameter to support the weight of a covering (not shown), such as a
taffeta nylon covering, or another suitable fabric. The covering
may extend over or under the air frame 182. A user may inflate the
air frame 182 and the shelter 180 is erected in a short period of
time. The shelter 180 stores in a small package when the air frame
182 is deflated.
[0104] An alternate embodiment of a shelter 190 is shown in FIG.
23. The shelter 190 includes four rigid legs 192, for example, made
of plastic or metal. An inflatable top 194 is positioned over the
legs 192. The inflatable top 194 is formed as an arch, and includes
ribs for permitting structured support. The inflatable top 194
includes metal or plastic tubes 196 for receiving the top ends of
the legs 192. The inflatable top 194 may include reinforcement ribs
or any other suitable structure so as to support the structure of
the top over the legs 192.
[0105] FIG. 24 shows an alternate embodiment of a shelter 200. The
shelter 200 is a fully inflatable air frame having legs 202 and an
upper canopy 204. The upper canopy may be domed so as to provide
arch support, or may simply extend straight across between the legs
202, and may be supported structurally (e.g., by a large diameter
of the air frame and/or internal or external reinforcements or
supports).
[0106] FIGS. 25 and 26 show two further embodiments of shelters
210, 220 in accordance with an embodiment. Each of these shelters
210, 220 includes an inflatable frame supporting a fabric canopy.
The shelter 210 includes an X-shaped inflatable air frame 212
having a canopy 214 mounted at the top under the apex of the
X-shaped air frame. The shelter 220 includes four arches 222
connected together at their lower ends and having a fabric canopy
224 extended therebetween.
[0107] If desired, the air frames used in the shelters may be
replaceable bladders and may be received in the sleeve of a fabric,
for example. As an example, for the shelter 220 in FIG. 26, the
canopy 224 may include sleeves along its outer edges for receiving
replaceable bladders that serve as the air frames 222.
[0108] The air frames for the shelters may be inflated manually or
by use of a pump, such as an electric pump. If desired, a pressure
sensor may be provided that senses a drop in pressure in the air
frame and automatically starts a pump to inflate more air into the
air frame.
Tents
[0109] Air frames may similarly be used to support a tent. For
example, as shown in FIG. 27, a tent 230 includes a plurality of
air channels 232 forming a crossed pattern for supporting the
fabric 234 of the tent. The air channels 232 may support a doorway
236 over which may extend a door or a screen 238 (shown rolled to
the side in FIG. 27).
[0110] An additional tent is shown in FIG. 28. The tent 240 shown
in that drawing includes arched frame ends 242 that extend over the
tent and a central upper rib 244 for connecting the two end frames
242. A side view of the tent is shown in FIG. 29.
[0111] In accordance with an embodiment, a door or window for a
tent or a shelter may include an outer air frame for supporting a
structure of the door or window. In this manner, the door or window
may hinge outward from a tent so as to provide an opening similar
to the opening for a home.
[0112] Air frames may be used in a similar manner to provide a tarp
structure that can attach to the rear of a truck or a car. For
example, as shown in FIG. 30, a tarp 250 may be provided having an
air frame 252 that supports a canopy 254. In the embodiment shown,
the air frame includes an outer arch 256 and two half arches 258
that extend up to a rear upper portion of a vehicle V.
[0113] Another shelter 260 is shown in FIG. 31. For this shelter,
an air frame 262 extends upward from the ground and makes a sharp
turn toward the top of a vehicle C. The top of the shelter 260
attaches to a roof rack R of the vehicle C. A crossbar 264, shown
in FIG. 32, is also part of the air frame and helps to support the
shelter 260. A canopy 266 extends over the air frame to provide a
shelter function.
[0114] FIG. 33 shows yet another shelter 270 in accordance with an
embodiment. The shelter 270 includes an air frame 272 formed of
legs 274 attached to top braces 276 and a cross brace 278. A canopy
279 extends over the air frame 272 to provide the shelter.
[0115] The shelter 280 in FIG. 34 includes a one-piece back air
frame 282 that extends across in an arch across the back of the
shelter 280. Two forward braces 284 extend forward for attachment
to a car, and a fabric 286 is draped in-between these forward
braces.
[0116] The shelter 290 in FIG. 35 is similar to the shelter 280,
but instead of being a rounded arch, the air frame 294 for the
shelter includes components having straight lines. In addition,
X-braces 292 extend across a top of the air frame 294.
[0117] As can be understood, the air frames of the present
invention may be utilized to form a variety of different shelters
or tents. In addition, the air frames may be positioned in a
variety of different configurations, including honeycomb
configurations, cross braces, free standing structures, or any
other configuration. Air frames may be configured to replace the
conventional poles that are used on shelters, tents, or canopies.
The air frames are lighter than metal/polymeric/ceramic poles and
are faster to erect. Examples of suitable materials and suitable
pressures for inflating the air frames described herein can be
found above and in U.S. Pat. No. 7,118,487, U.S. Pat. No.
6,263,617, and U.S. Provisional Pat. App. No. 60/130,549.
Furniture
[0118] FIG. 36 shows a love seat 300 in accordance with an
embodiment. The love seat 300 includes a lower seating surface 302
and a seat back 304, each of which includes an inflatable bladder.
An air channel 306 extends between the lower seating surface 302
and the seat back 304 so that the two air bladders may be inflated
by a single valve and/or pump. The seat back 304 may include an
inflatable lumbar bladder 306 for providing ergonomic support. The
lumbar bladder may be connected in fluid communication with the
seat back 304, or may be a separate bladder from the seat back.
Airbeds
[0119] The air frame technology described herein may be utilized to
produce airbeds. Although conventional airbeds utilize air
bladders, the bulk of those airbeds are made of a thick material
that is puncture resistant and that can resist leaking. Such
material works well for its intended use, but can be bulky and
heavy when the airbed is deflated. In accordance with an
embodiment, a much lighter weight air bladder is used in an airbed.
Such a light-weight air bladder may be formed, for example, of a
polyurethane material or another suitable lightweight material,
such as the lightweight materials set forth above.
[0120] To protect such an air bladder, in accordance with an
embodiment shown in FIG. 37, the air bladder 310 is placed into a
puncture resistant cover 312. The puncture resistant cover may be
formed, for example, of vinyl, canvas, or another suitable
flexible, puncture-resistant material.
[0121] By forming the airbed bladder 310 as described above, the
air bladder may be a replaceable component. Thus, the air bladder
310 would be a light-weight, replaceable component and when
punctured may be replaced by another air bladder that would fit
into the cover 312. To maintain the shape of the air bladder 310,
coils 314 may be provided that extend between the top and bottom
surfaces of the air bladder 310. However, if the air bladder is
made of a very thin material, such coils 314 may be difficult to
weld to the air bladder. Thus, in accordance with an embodiment
shown in FIG. 38, a cover 320 includes a plurality of chambers 322
that extend a length of the cover. A corresponding plurality of
interchangeable air bladders 324 are inserted into the chambers 322
so that the cover 320 is supported. These individual bladders do
not require internal supports because the chambers provide such
support. As with the air bladder 310, the interchangeable air
bladders 324 may be replaceable.
[0122] Utilizing the structure shown in FIG. 38, air coils do not
have to be provided in the air bladder. Thus, the interchangeable
air bladders 324 may be formed using a relatively light-weight
material that cannot be easily welded. In addition, even if a
material is used that can be welded, eliminating coils reduces
weight, bulk, and the cost of producing of the air bladders.
[0123] FIGS. 39 and 40 show an alternate embodiment of an airbed
330 having a cover 332 similar to the cover 320, but having air
bladders 334 formed with semi-rectangular cross sections.
Marine Shelters
[0124] FIG. 41 shows an inflatable cover 340 that may be attached
to the top of a boat B. The cover 340 includes an air frame 342
shaped similar to the air frames for some of the shelters described
above. That is, the air frame 342 includes the rear arched air
channel 344 and right and left channels 346, 348 that extend from
back bottom portions of the cover 340 to a windshield for the boat
B.
[0125] Other configurations of covers using air frames may be used
for boats. For example, a cover 350 shown in FIG. 42 extends
straight back from the windshield of a boat and a cover 360 shown
in FIG. 43 includes a hump towards the center.
[0126] Details of another cover 351 are shown in FIG. 44. The cover
350 includes legs 352 extending upward to cross braces 354. Fabric
356 extends across the cross braces to provide shelter for the
cover 350.
[0127] Another cover 361 is shown in detail in FIG. 45. The air
frame 362 for that cover 361 includes an upwardly and forwardly
extending C-shaped element 364 attached to an O-shaped element 366.
A fabric 368 extends over the center portion of the O-shaped
element 366 to provide a top for the cover 361.
[0128] Yet another embodiment of a cover 370 is shown in FIG. 46.
This cover includes four legs 372 extending upward to a top frame
374.
[0129] An advantage of the inflatable air frames for boat covers is
that the boat covers, once deflated, are very compact and can be
stored in a convenient location on the boat. In addition, a cover
may be configured so that it may fit onto a number of different
boats. In addition, the boat covers are quickly installed after
inflated so that a user may erect or store the cover in a short
period of time. Thus, a user will not be hesitant to install a
cover when weather is questionable, or to take the cover down once
it is no longer needed.
Sleeping Bags
[0130] FIGS. 47-50 show three different embodiments of sleeping
bags, each of which has a built-in airbed. The sleeping bag 380 in
FIG. 47 includes an airbed 382 that is sewn into the bottom of a
mummy sleeping bag 384. The airbed 382 is formed of a light-weight
material such as is described above.
[0131] FIGS. 48 and 49 show a sleeping bag 390 having an airbed 392
that is attached to a mummy-style sleeping bag 394. A pump 396 is
built into the airbed. Mesh material or stretch mesh material is
provided for attaching the airbed 392 to the bottom of the mummy
bag 394. In alternate embodiments, the airbed may be removably
attached in a suitable manner, such as by hooks, snaps, hook and
loop closures, clasps, or another removable or detachable
connection structure.
[0132] FIG. 50 shows a sleeping bag 400 having a sleeve 402
extending along the bottom of the sleeping bag. An airbed 404 fits
into the sleeve. The airbed 404 may be removed and replaced as
necessary.
[0133] In any of the embodiments, a suitable pressure for inflating
the air frames, such as the air frames described above, includes a
range from four to eight pounds per square inch (P.S.I.). If more
rigidity is desired, a higher pressure may be used. For example, a
suitable pressure for the air frames used with backpacks includes a
range up to fifteen P.S.I. Pressures less than four P.S.I. and
pressures more than fifteen P.S.I. may also be used.
[0134] Other variations are within the spirit of the present
invention. Thus, while the invention is susceptible to various
modifications and alternative constructions, a certain illustrated
embodiment thereof is shown in the drawings and has been described
above in detail. It should be understood, however, that there is no
intention to limit the invention to the specific form or forms
disclosed, but on the contrary, the intention is to cover all
modifications, alternative constructions, and equivalents falling
within the spirit and scope of the invention, as defined in the
appended claims.
[0135] All references, including publications, patent applications,
and patents, cited herein are hereby incorporated by reference to
the same extent as if each reference were individually and
specifically indicated to be incorporated by reference and were set
forth in its entirety herein.
[0136] The use of the terms "a" and "an" and "the" and similar
referents in the context of describing the invention (especially in
the context of the following claims) are to be construed to cover
both the singular and the plural, unless otherwise indicated herein
or clearly contradicted by context. The terms "comprising,"
"having," "including," and "containing" are to be construed as
open-ended terms (i.e., meaning "including, but not limited to,")
unless otherwise noted. The term "connected" is to be construed as
partly or wholly contained within, attached to, or joined together,
even if there is something intervening. Recitation of ranges of
values herein are merely intended to serve as a shorthand method of
referring individually to each separate value falling within the
range, unless otherwise indicated herein, and each separate value
is incorporated into the specification as if it were individually
recited herein. All methods described herein can be performed in
any suitable order unless otherwise indicated herein or otherwise
clearly contradicted by context. The use of any and all examples,
or exemplary language (e.g., "such as") provided herein, is
intended merely to better illuminate embodiments of the invention
and does not pose a limitation on the scope of the invention unless
otherwise claimed. No language in the specification should be
construed as indicating any non-claimed element as essential to the
practice of the invention.
[0137] Preferred embodiments of this invention are described
herein, including the best mode known to the inventor for carrying
out the invention. Variations of those preferred embodiments may
become apparent to those of ordinary skill in the art upon reading
the foregoing description. The inventor expects skilled artisans to
employ such variations as appropriate, and the inventors intend for
the invention to be practiced otherwise than as specifically
described herein. Accordingly, this invention includes all
modifications and equivalents of the subject matter recited in the
claims appended hereto as permitted by applicable law. Moreover,
any combination of the above-described elements in all possible
variations thereof is encompassed by the invention unless otherwise
indicated herein or otherwise clearly contradicted by context.
* * * * *