KR101166622B1 - Improved air-cushion backpack and laptop sleeve - Google Patents

Abstract

The backpack has a front pocket containing a plate and a pair of shoulder straps for holding the plate against the user's back. The pressurable, flexible and elastic bladder has an inner surface that covers the plate and has a convex pattern to prevent the opposite walls of the bladder from sticking together to facilitate initial expansion of the bladder. . A pair of tubular extensions extend from the bladder into the shoulder straps, one of the tubular extensions intended to inflate and deflate the bladder. An oral inflatable check valve connected to the extension is positioned to be available to the user to inflate the bladder and the valve cover is detachably connected over the entire oral engageable perimeter of the check valve to keep the check valve clean. Semi-rigid liners form channels in the shoulder straps near the bladder to facilitate expansion and contraction of the bladder. A pair of cushion panels within or separate from the backpack includes a plurality of deflected parallel, partially filled air tubes spaced by the web to minimize volume when there is nothing between the cushion panels.

Description

IMPROVED AIR-CUSHION BACKPACK AND LAPTOP SLEEVE}

FIELD OF THE INVENTION The present invention relates generally to conveying goods and, more particularly, to novel and useful backpacks and laptop sleeves having an air cushion configuration for improved protection and comfort of laptop computers carried by backpacks or sleeves.

U.S. Patent No. 11 / 377,008, filed Mar. 16, 2006, which discloses at least one inventor with the present application and discloses Sep. 20, 2007, which is incorporated herein by reference. Application US2007 / 0215662 teaches a backpack having an overall rigid plate with shoulder straps for holding the backpack against the front, back, and back of the user. An expandable, inelastic, smooth surface bladder covers the front of the plate as a whole so that the bladder can be expanded for improved comfort and load distribution, and has a closing fill opening.

The backpack of the aforementioned application has been very successful because of its various advantages, but it has certain areas of improvement addressed by the present invention. One of these areas relates to the use of vinyl as a bladder material that has been found to be very beneficial because it is flexible, low elastic, and also importantly, made to have a smooth inner and outer surface. In the contracted state after manufacture, the inward walls tended to stick together because they had a smooth surface. This makes it very difficult to inflate the bladder for the first time, because in addition to overcoming the internal pressure in order to inflate the bladder to a comfortable level, it is necessary to separate the walls from sticking together only with the blown air pressure. This proved to be very difficult.

Another difficulty identified with conventional backpacks is that, according to the preferred embodiment of the invention, since only one tube extends along the shoulder strap for expansion, when the backpack and its one tube are inflated, another strap is It is asymmetric because it does not swell, and it is speculated that this asymmetry causes defects. The present invention likewise overcomes these difficulties.

Another area of improvement addressed by the present invention is the presence of a check valve cover that covers the oral expansion check valve of a conventional backpack, thus improving the hygiene and cleanliness of the oral expansion check valve and its surrounding area.

In addition, it has been found to be relatively undesirable to use flexible but inelastic materials for bladder, and therefore flexible and elastic bladder materials are currently used in approved backpacks.

Another problem with the prior art is the protection of laptop computers that are compact and portable but can easily be dropped and damaged. While padded sleeves are known, there remains a need for an improved padding configuration alone or within a laptop sleeve.

It is an object of the invention to have a first front wall, a second front wall spaced forward of the first front wall and together with the first front wall to form a front pocket, a front and a back, the back of the plate being An overall rigid plate, positioned inside the front pocket, adjacent the first front wall, and at least one for keeping the plate facing the user's back with the second front wall positioned between the plate and the back of the user A pair of shoulder straps connected to the front wall of the vehicle, load-bearing means connected to the at least one front wall to hold the object, and a pressurable, flexible and elastic bladder covering the front of the plate as a whole. It is to provide a backpack containing. The bladder is located in a front pocket between the front of the plate and the second front wall, and at least the entire inner surface of the bladder prevents the opposite walls of the bladder from sticking together to facilitate initial expansion of the bladder. To have a smooth texture on the surface. The pair of tubular extensions each extends from the bladder into each shoulder strap, one of the tubular extensions for inflating and retracting the bladder. The oral inflatable normally closed check valve is positioned to be available to the user to inflate the bladder by blowing air into the check valve having an orally engageable periphery with the shoulder strap on the user's shoulder, and the bladder It is connected to one tubular extension at a position spaced from it. The valve cover is detachably connected over the entire oral bondable perimeter of the check valve to cover and keep the check valve clean. A pair of semi-rigid liners in each shoulder strap near the bladder to form a pair of semi-rigid channels for the tubular extension near the bladder to facilitate expansion and contraction of the bladder through one tubular extension. exist.

Another object of the invention is as part of a backpack or as a unique product, comprising a pair of cushion panels connected behind the first front wall, in the rear pocket of the backpack, or as a unique sleeve, each cushion panel in each cushion panel A web is provided between the air tubes, made of a flexible elastic material, comprising a plurality of air tubes separated and spaced apart, parallel, permanently sealed and partially filled, and in the space between the cushion panels. To minimize the volume the cushion panel occupies when nothing is there, and to cushion the laptop computer placed between the cushion panels, the air tubes of one cushion panel provide a laptop sleeve that faces each other's web of cushion panels. .

Another object of the present invention is to be normally closed to prevent air from escaping from the bladder, and to manually pressurize the flapper to move the air out of the bladder, It includes a check valve having a flapper including a press button to adjust the amount to improve comfort.

Various novel constructions that characterize the invention particularly form part of this specification and are disclosed in the appended claims. BRIEF DESCRIPTION OF DRAWINGS For a better understanding of the operational advantages and the specific objects obtained by the use of the present invention, reference is made to the accompanying drawings in which preferred embodiments of the present invention are shown.

According to the present invention, it is possible to provide novel and useful backpacks and laptop sleeves having an air cushion configuration for enhancing comfort and protecting laptop computers carried by backpacks or sleeves.

1 is a side view of a backpack according to the invention with a retracted inner bladder cushion;
2 is a horizontal cross sectional view taken along line 2-2 of FIG. 1 with cushion sleeve or pocket for a laptop computer.
FIG. 2A illustrates another embodiment of the invention similar to FIG. 2 but with an empty laptop sleeve. FIG.
FIG. 2B is a view similar to FIG. 2 showing another embodiment of the present invention with a laptop in its sleeve. FIG.
FIG. 3 is a view similar to FIG. 1 showing the laptop sleeve embodiment of FIG. 2 with a partially cut away backpack having an inflated cushion; FIG.
4 is a front view of the backpack of FIG.
Figure 5 is a partial front view showing a state in which the person wearing the pack of Figure 1;
FIG. 6 is a view similar to FIG. 5 showing the use of a backpack. FIG.
7 is a front view showing another bladder according to the present invention.
8 and 9 are front views of the pack employing the bladder of FIG. 7 in two different positions.
10 is a rear view of the bladder of the pack of FIGS.
11 and 12 are cross-sectional views taken along lines 11-11 and 12-12 of FIG. 10, respectively.
13 and 14 are side cross-sectional views illustrating the contracted and expanded states of the bladder of FIG. 10, respectively.
15 is an enlarged view of the fitting used in the position indicated by reference numeral 15 in FIG.
16 is a front view of another bladder according to the present invention;
17 and 18 are cross sectional views taken along lines 17-17 and 18-18 of FIG. 16, respectively.
FIG. 19 is a side sectional view of the bladder of FIG. 16; FIG.
20 is an exploded perspective view of the original cushion laptop computer sleeve of the present invention.
21 is a plan view of the preassembled sleeve of FIG. 20.
Figure 22 is a perspective view of another embodiment of a laptop sleeve of the present invention.
FIG. 23 is an exploded perspective view illustrating assembly steps of another embodiment of a laptop sleeve. FIG.

Referring now to the drawings in which like reference numerals are used to indicate identical or functionally similar elements, FIG. 1 shows an improved backpack 10 of the present invention, in particular to prevent the backpack from sticking. By providing a textured or convex pattern on at least the inner side of the bladder; By using an inflatable shoulder strap tube with air injection in both shoulder straps 30; Permanently indicated at 40, 42, and 44 in FIG. 2 in a main pocket or chamber in a backpack that can be closed by a zipper 18, or in a separate laptop sleeve of FIGS. 20-23 for protecting a laptop computer By including an inflated elastic material tube; By including the cover 35 of FIGS. 5 and 6 over the air injected check valve 34; And other advantageous improvements that can be distinguished over general prior art or the aforementioned published patent application overcome some of the disadvantages of the prior backpack of the disclosed patent application. The inflatable shoulder strap tube then has a mechanism to allow free air flow into the tube such that the backpack is symmetrical and free of defects.

1 to 10, the improved backpack 10 of the present invention is spaced apart from the front of the first front wall 20 and the first front wall 20 made of durable fiber, such as a durable nylon fiber. A second front wall 22 made of the same or more robust fibers, forming a front pocket 24 together with the first front wall 20, and a plate having a front side and a back side and the back side of the plate being the first front wall. And a plate 26 which is generally rigid, preferably plastic, which is a plate located in the front pocket 24 in a state adjacent to the 20. A pair of shoulder straps 30, as shown in FIGS. 4-6, to hold the plate against the user's back with the second front wall 22 between the plate 26 and the user's back. It is connected to at least one of the body of the backpack, ie the front walls 20 and / or 22.

Load bearing means, such as primary backpack pockets and additional backpack pockets, formed by rear walls 12 and inner bulkheads 14 made of the same fibers as one or the other front wall and connected to at least one of the front walls, may be used as the object or It is provided to support the load. The rear pocket between the walls 12 and 14 is closed by an additional zipper 16. As shown in FIG. 3, the plate pocket 24 formed of the walls 20 and 22 also has a top zipper 19 for utilizing the plate pocket. This allows access to the plate pockets for airport security checks that do not allow for a closed storage space that may hold smuggled goods.

As best shown in FIGS. 2, 2A, 2B and 10-14, a pressurized, flexible and elastic bladder 28 entirely covers the front face of the plate 26, and the bladder It is further located in the front pocket 24 between the front face of the plate and the second front wall 22. At least the entire inner face 27 of the bladder is not smooth or convex pattern 29 on the surface to prevent the mutually facing walls of the bladder 28 from sticking together to facilitate initial air injection of the bladder. Has The outer surface of bladder 28 may or may not have the same or different pattern, and all the patterns are made by providing a negative image of the pattern on the surface of the bladder forming mold. For example, as shown in FIG. 10, the pattern may be a concentric convex pattern or any other pattern having the effect of preventing a wide smooth surface of a flexible plastic material from touching and inevitably sticking to each other.

Due to both its flexibility and elastic properties, it is beneficial to form bladder with plastics such as PU (polyurethane) or PVC (polyvinyl chloride) that do not stretch and absorb energy and transmit energy when impacted. Turned out. However, flexible but inelastic vinyl can also be used. As will be described later, a cushion panel forming a laptop sleeve each made of a plurality of spaced, parallel, permanently sealed and partially filled air tubes is also elongated upon impact to absorb and transfer energy to the sleeve. To protect the laptop computer within, it may be made of a flexible elastic material such as PU or PVC.

To ensure that the appearance of the backpack is completely symmetrical, a pair of tubular extensions or tubes 32, 33, shown in FIG. 10, respectively extend from bladder 28 into each shoulder strap 30. do. As will be explained later, one of the tubular extensions 32 is for inflation and deflation of the bladder and, if desired, both can be used for this purpose if both are provided with a deflation valve. In any case, a mouth-inflatable, normally closed check valve 34 is connected to the at least one tubular extension 32 at a position spaced apart from the bladder 28, the shoulder While the strap 30 is over the user's shoulder, it is positioned to be available to the user as shown in FIG. 6 to inflate the bladder 28 by blowing air into a check valve having an orally engageable perimeter.

A valve cover 35 having a rounded edge around the periphery is removably connected on the entire periphery of the check valve 34 to which the oral cavity can be engaged to cover and keep the check valve 34 clean. To prevent the cover from being lost, the cover is permanently held at the valve circumference by the tab 35a. The check valve 34 is closed normally in opposition to the circumference of the inner side of the valve circumference and is in place to maintain the internal air pressure in the bladder 28 and tube 32 to prevent air from escaping from the bladder. It has an inwardly pressurized flapper that is held at. The flapper is a centrally projected pressurization that the user can manually press to move the flapper inwardly away from the valve periphery and allow some or all air to escape from the bladder to adjust the bladder's firmness and comfort to the user's back. Includes button 39 on the flapper.

As shown in FIGS. 10 and 15, a pair of semi-rigid liners 36 and 37 of, for example, semi-rigid plastic, inside each of shoulder straps 30 and 30 in the vicinity of the bladder, has one tubular extension ( 32) form a pair of semi-rigid channels for tubular extensions 32, 33 in the vicinity of the bladder to facilitate expansion and contraction of the bladder. Two more liners are provided for symmetry, or else an oral inflatable valve 34 must be provided on both tubes 32, 33 as needed. The liners on both sides of the expansion tube 32 and the auxiliary tube 33 do not collapse the tube under the load on the shoulder strap, otherwise it is impossible to use the tube 32 to inflate or deflate the bladder 28. Will be done. The other tube 33 is also automatically inflated by the air from the bladder 28, which can move through the open channel formed by the liner 37, so that both tubes and both shoulder straps are inflated to the same extent and are thus symmetrical. to be.

As mentioned above, the material of the bladder may be vinyl or other plastic that is flexible or inelastic, but it does not stretch and absorb energy and transmits energy when impacted (PU) or PVC (polychlorinated). It is preferable that it is elastic plastics, such as vinyl).

As shown in FIGS. 1, 3, 4, 8 and 9, at least one front wall, but preferably the second front wall 22 facing the user's back, is made of a mesh with good ventilation. . Alternatively, the second front wall 22 may be made of a stretch fabric forming a front pocket for holding the bladder 28.

As shown in FIGS. 10-14, the bladder is subdivided into a plurality of interconnected compartments comprising a relatively wide lower article support compartment 28a and a plurality of relatively small top compartments 28b, 28c and 28d. Can be. The backpack bladder may be formed with a front open center recess, as clearly shown in FIGS. 2, 2A and 2B to prevent direct pressure on the spine of the user.

As an alternative, the front pocket 24 may be opened downward, and the backpack may further include a releasable fastener, such as hook and loop tape, at the bottom edge of the front panel as shown in FIG. 8 to access the plate. Can be.

As shown in Figures 2, 2A, 2B and 3, the backpack includes a laptop computer sleeve in a rear pocket facing the wall 20 or a proprietary laptop sleeve described later in connection with Figures 20-23. can do. 2, 2A, 2B and 3, the sleeve comprises a pair of cushion panels connected behind the first front wall, in the rear pocket, each cushion panel being separately spaced apart, parallel and permanently sealed And a plurality of partially filled air tubes 40, which are made of a flexible elastic material having a web 48 between the air tubes 40 in each cushion panel. To minimize the volume the cushion panel occupies when there is nothing in the space between the cushion panels as shown in FIG. 2A, and to cushion the laptop computer 50 placed between the cushion panels as shown in FIG. 2B. The air tube 40 of one cushion panel faces the web 48 of each other cushion panel.

As mentioned above, the cushion panels are made of elastic plastic, such as PU or PVC, which stretch when absorbed and absorb energy and do not transmit energy to the laptop.

As shown in FIG. 3, the sleeve is also made of a flexible elastic material to cover and cushion the space between the cushion panels and between one of the cushion panels, in this case, between the top of the front panel and the top air tube. Of the space between the cushion panels to further cushion the space as shown in FIGS. 2 and 3, with a top air tube 46 that is permanently sealed and partially filled. It may have a pair of permanently sealed and partially filled side 42 and bottom 44 air tubes made of the same flexible elastic material connected at the side and bottom, respectively.

Referring now to Figures 20-23, the original laptop computer sleeve of the present invention is made of fiber having a front cover panel 54 with a top zippered pocket and a rear cover panel 56 with a top zippered pocket. Outer cover 52. The front and rear cover panels are connected to each other by a gusset 60 extending across the bottom and sides of the pocket panel. Top gusset 62 with longitudinal main zipper 58 closes the periphery of the cover and provides an access opening for inserting and removing a laptop computer.

Here too, the pair of cushion panels each comprise a plurality of separately spaced, parallel, permanently sealed, partially filled air tubes 40, which are made of a flexible elastic material, within each cushion panel A web 48 is provided between the air tubes 40. The front and rear cushion panels are inserted into the respective front and rear cover panels 54 and 56 in the direction of the arrows in FIG. 20 through the top zipper. When there is nothing in the space between the cushion panels, in order to minimize the volume occupied by the cushion panels, the air tubes 40 of one cushion panel face the webs 48 of the other cushion panels, respectively. As a laptop in the space, a buffer of the laptop computer is generated between the cushion panels.

FIG. 21 shows the unassembled cover before the zippered front and rear cover panels 54 and 56 are sewn or otherwise connected to the gussets 60 and 62 at the perimeter.

As shown in FIG. 22, the sleeve also has an upper end connecting between the top panel or one of the cushion panels and the top air tube 46 to cover and cushion the space between the cushion panels and a predetermined laptop therein. It is preferred to include a top air tube 46 having a web 48 and permanently sealed and partially filled. As shown in FIG. 23, a pair of permanently sealed and partially filled side 42 and bottom 44 air tubes made of a flexible elastic material are respectively provided between the cushion panels to further cushion the space. It is connected to the sides and the bottom of the space. This is done by providing a gusset 60 with fibrous side tubes 60a and 60c and a fibrous bottom tube 60b, which are each accessible to receive each tube 42 or 44 in the direction of the arrow in FIG. Has an opening. As schematically shown in FIG. 23, after the tubes 42, 44 and 42 are inserted sequentially, the gusset is sewn to the front and rear cover panels and the sleeve is completed. As an alternative, however, after the fibrous cover is assembled, the tubes 42 and 44 can be inserted into the gusset tubes 60a, 60b, 60c.

Even when there is no way to refill the tubes 40, 42, 44, and 46, it has been found that the tubes will retain their cushioning effect for many years because the plastic material is sufficiently impermeable. In addition, partial filling is essential, for example, each tube is only filled with air with about 60 to 90 percent of its total volume. This allows air to move around each cushion, providing sufficient shock absorption without excessive kickback or bounce of the sleeve after the first impact. A fierce reaction will adversely affect the laptop.

The backpack 10 according to the invention can be used to carry any baggage, such as virtually everything carried on instruments, equipment, or the like, on the inside, on top or around the bag.

Bladder 28 is substantially thicker lower region 28a than its upper region 28b when fully inflated as shown in FIG. 14 to provide good cushioning at the kidney or lumbar height of the wearer of pack 10. ) Bladder 28 also has a somewhat concave central region 28c and raised and vertically elongated side regions 28d.

As described above, the strap 30 is normally compressed by the weight of the pack 10 to prevent the flexible tubular extensions or tubes 32 and 33 from being tightened and closed at the portion beyond the user's shoulder. In the region, the straps 30 have foam edges and the U-cross-section semi-rigid in place so that the tubes 32, 33 remain open in the semi-rigid channels formed below the liners 36, 37. Liners 36 and 37 are provided integrally.

Thus, with this system it is possible to inflate bladder 28 from the relatively flat and stretched state shown in FIG. 13 to the relatively voluminous, uniform and reasonably rigid state shown in FIG. This can be done before or after wearing the pack. Once the backpack is worn by the user's arm passing through the strap 30 so that the front mesh panel 22 overlying the bladder 28 rests against the user's back, the press button 39, for example, to release the predetermined pressure. The valve 34 is operated by pressurizing it. This allows the backpack to rest on the user's back and take a position that effectively fits the user. In this position, the weight of the pack and its contents is applied evenly over the user's back, and any concentrated load that may be injured or at least uncomfortable is removed.

7-9 show another configuration in which the bladder 28 'is provided at the lower corner with the valve 34' and does not have a tubular extension 32 over the shoulder. Here, the pockets 24 'are opened downward and can be closed over the convexed bladder 28' by fastening to the bottom of the pack 10 via the Velcro fasteners 23 '. Is formed by. This configuration also has a rigid plate 26, not shown.

Figures 16-19 show another convex bladder 28 "with a lateral short extension 32" provided with a valve 34 ". With this configuration, the front panel not shown An opening 22 is formed in the 22 through which an extension 32 "can be extended for the operation of the valve 34".

The use of backpacks with convex bladders 28 'and 28 "is the same as with bladder 28, i.e. the bladder is blown in at first and then for comfort use. Partially contracted.

While specific embodiments of the invention have been shown and described in detail to illustrate application of the principles of the invention, it will be understood that the invention may be implemented in other ways without departing from these principles.

10: Backpack
12: rear wall
14: inside bulkhead
16: Zipper
19: Top zipper
20: first front wall
22: the second front wall
24: Front pocket
26: Edition
27: inner side
28: Bladder
29: pattern
30: shoulder strap

Claims (21)

The first front wall 20,
A second front wall 22 spaced forward of the first front wall and forming a front pocket 24 together with the first front wall;
A rigid plate 26 having a front surface and a back surface and positioned inside the front pocket 24 with the back surface of the plate adjacent to the first front wall 20,
A pair of shoulder straps 30 connected to the at least one front wall to hold the plate against the user's back with a second front wall 22 positioned between the plate and the user's back,
Load-bearing means connected to at least one front wall for holding an object,
A pressurable, flexible bladder 28 covering all of the front face of the plate,
A pair of tubular extensions 32, 33 each extending from bladder 28 into each shoulder strap 30, one of the tubular extensions being configured to inflate and deflate the bladder Tubular extensions (32, 33),
An oral inflatable normally closed check valve (34), which is connected to one tubular extension at a position remote from the bladder, and into the check valve with an orally engageable perimeter with a shoulder strap over the user's shoulder An orally inflatable, normally closed check valve (34), which is positioned to be available to the user to inflate the bladder by blowing air,
A valve cover 35 detachably connected over the entire oral engageable perimeter of the check valve to cover and keep the check valve 34 clean,
Each shoulder near the bladder to form a pair of semi-rigid channels for the tubular extensions 32, 33 near the bladder to facilitate expansion and contraction of the bladder through one tubular extension 32. A pair of semi-rigid liners 36, 37 in the strap 30,
The bladder is located in a front pocket between the front of the plate and the second front wall, and at least on the entire inner surface of the bladder to prevent the opposite walls of the bladder from sticking together to facilitate initial expansion of the bladder. Which provides a smooth texture (29)
backpack. The method of claim 1,
The non-smooth grain 29 is a pattern 29 convex on at least the entire inner surface of the bladder.
backpack. The method of claim 1,
The non-smooth grain 29 is a pattern 29 convexly convex on at least the entire inner surface of the bladder.
backpack. The method of claim 1,
The load-bearing means is a bag fixed to at least one of the first and second front walls behind the back and having an openable receptacle.
backpack. The method of claim 1,
The plate is an unperforated semi-rigid plastic plate
backpack. The method of claim 1,
At least one front wall of the front pocket is made of mesh
backpack. The method of claim 1,
The check valve 34 is normally closed to prevent air from escaping from the bladder and includes a pressurized button 39 which manually pressurizes the flapper to move the air out of the bladder. Having
backpack. The method of claim 1,
The second front wall 22 is a stretch fabric front panel forming a front pocket for holding the bladder.
backpack. The method of claim 8,
The load-bearing means comprises a textile back panel which forms a rear pocket with the first front panel.
backpack. 10. The method of claim 9,
A first slide fastener closing the end of the rear pocket and a second slide fastener closing the end of the front pocket
backpack. The method of claim 10,
The second front panel is a mesh
backpack. The method of claim 11,
Internal bladder is subdivided into multiple interconnected compartments
backpack. The method of claim 1,
The bladder is subdivided into a plurality of interconnected compartments, the compartments comprising a relatively wide lower compartment and a relatively small plurality of upper compartments.
backpack. The method of claim 8,
The front pocket is opened downward, and the backpack further includes a releasable fastener at the lower edge of the front panel.
backpack. The method of claim 1,
The bladder is formed to have a central recess that is opened forward to prevent pressure from being applied to the spine of the user.
backpack. The method of claim 1,
The load bearing means comprises a textile back panel which forms a rear pocket with the first front panel, and includes a pair of cushion panels connected behind the first front wall 20 in the rear pocket, each cushion panel being A plurality of air tubes 40 provided with a web 48 between the air tubes in each cushion panel, made of a flexible elastic material, separated and spaced apart, parallel, permanently sealed and partially filled. Wherein, in order to minimize the volume occupied by the cushion panel when there is nothing in the space between the cushion panels, and to cushion the laptop computer placed between the cushion panels, the air tubes of one cushion panel are each different from the other cushion panel. Face to face of the web
backpack. 16. The method of claim 15,
A top air tube made of a flexible elastic material and having a top web connected between one of the cushion panels and the top air tube to cover and cushion the space between the cushion panels, and a permanently sealed and partially filled top air tube and A pair of permanently sealed and partially filled side and bottom air tubes, each connected at the side and bottom of the space, made of a flexible elastic material, to further cushion the space between the cushion panels.
backpack. Laptop computer sleeve,
A pair of cushion panels comprising a pair of cushion panels made of a flexible elastic material and comprising a plurality of air tubes that are separated, spaced apart, parallel and permanently sealed and partially filled,
A web is provided between the air tubes in each cushion panel, to minimize the volume the cushion panel occupies when there is nothing in the space between the cushion panels, and to cushion the laptop computer placed between the cushion panels. The air tubes of the cushion panel face each other's web of the cushion panel
Laptop computer sleeve. 19. The method of claim 18,
A top air tube made of a flexible elastic material and having a top web connected between one of the cushion panels and the top air tube to cover and cushion the space between the cushion panels, and a permanently sealed and partially filled top air tube and A pair of permanently sealed and partially filled side and bottom air tubes, each connected at the side and bottom of the space, made of a flexible elastic material, to further cushion the space between the cushion panels.
Laptop computer sleeve. The first front wall,
A second front wall spaced forward of the first front wall and forming a front pocket with the first front wall,
A rigid plate having a front side and a back side, the back side of the plate being positioned inside the front pocket with the back side adjacent to the first front wall and being an unperforated semi-rigid plastic plate,
A pair of shoulder straps connected to the at least one front wall to maintain the plate facing the user's back with a second front wall positioned between the plate and the user's back;
Load-bearing means connected to at least one front wall for holding an object,
A pressurizable, flexible bladder covering the front of the plate,
A pair of tubular extensions each extending from the bladder into each shoulder strap, wherein one of the tubular extensions is configured to inflate and deflate the bladder;
An oral inflatable normally closed check valve (34), which is connected to one tubular extension at a position remote from the bladder, and into the check valve with an orally engageable perimeter with a shoulder strap over the user's shoulder An orally inflatable, normally closed check valve (34), which is positioned to be available to the user to inflate the bladder by blowing air,
A valve cover detachably connected over the entire oral joinable perimeter of the check valve to cover and keep the check valve clean;
A pair of semi-rigid liners in each shoulder strap near the bladder to form a pair of semi-rigid channels for the tubular extension near the bladder to facilitate expansion and contraction of the bladder through one tubular extension. Include,
The bladder is located in a front pocket between the front of the plate and the second front wall, and at least the entire inner surface of the bladder prevents the opposite walls of the bladder from sticking together to facilitate initial expansion of the bladder. Have a non-smooth grain on the surface so that the non-smooth grain is produced by a convex pattern on at least the entire inner surface of the bladder,
The load-bearing means is a bag fixed to at least one of the first and second front walls behind the back and having an openable compartment;
The check valve is normally closed to prevent air from escaping from the bladder and has a flapper including a press button for manually pressurizing the flapper to move the flapper out of the bladder,
The bladder is subdivided into a plurality of interconnected compartments, the compartment comprising a relatively wide lower compartment and a relatively small plurality of upper compartments,
The load-bearing means comprises a textile back panel forming a rear pocket with the first front panel,
A pair of cushion panels are connected in the rear pocket, behind the first front wall, each cushion panel comprising a plurality of air tubes made of a flexible elastic material that are separated, spaced apart, parallel, permanently sealed and partially filled A web is provided between the air tubes in each cushion panel, to minimize the volume the cushion panel occupies when there is nothing in the space between the cushion panels, and to cushion the laptop computer placed between the cushion panels, The air tubes of one cushion panel are each facing the web of the other cushion panel
backpack. 21. The method of claim 20,
A top air tube made of a flexible elastic material and having a top web connected between one of the cushion panels and the top air tube to cover and cushion the space between the cushion panels, and a permanently sealed and partially filled top air tube and A pair of permanently sealed and partially filled side and bottom air tubes, each connected at the side and bottom of the space, made of a flexible elastic material, to further cushion the space between the cushion panels.
backpack.

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