1. Field of the Invention
The present invention relates to backpacks and other carrying bags that are adapted to be carried on a user's back, and in particular, to improvements to a carrying bag.
2. Description of the Prior Art
Backpacks and other carrying bags are commonly used by schoolchildren and adults alike to carry heavy objects like books, travel equipment and the like. Unfortunately, conventional backpacks suffer from several drawbacks.
First, some of these backpacks can often weigh in excess of 20 pounds after they have been packed full. Even backpacks packed with schoolbooks can be quite heavy. Unfortunately, many users, such as young students, often suffer back-related injuries that are attributable to extended use with heavy objects.
Second, some of the items carried in these backpacks often have sharp or blunt ends that may press against the user's back. This can cause discomfort, or even injury, to the user depending the nature of the item.
Third, since a conventional backpack typically presses against a user's back, there is no ventilation of the user's back, thereby causing the user to sweat.
The above-described three drawbacks collectively lead to discomfort, and in extreme cases, possible injury, to the user.
It is an object of the present invention to provide a backpack or carrying case that addresses the drawbacks set forth above.
In order to accomplish the objects of the present invention, the present invention provides a carrying bag having a casing defining an interior storage space, a back panel, and a support frame secured between the casing and the back panel, with the support frame defining an air channel. A carrying strap is secured to the back panel, and a lower back strap is secured to the back panel. In other embodiments, the support frame can be replaced by a housing which carries with it a temperature control device and/or a massage device, or water.
The following detailed description is of the best presently contemplated modes of carrying out the invention. This description is not to be taken in a limiting sense, but is made merely for the purpose of illustrating general principles of embodiments of the invention. The scope of the invention is best defined by the appended claims.
The casing 12 has a shell 26 with six sides that together define a storage space 28 inside the shell 26. The shell 26 can be made from any conventional backpack material, such as a tough fabric, canvas or nylon material. The shell 26 can also be made of a rigid material such as wood, metal (e.g., steel), bamboo, or plastic, so that the shell 26 would essentially be a rigid container. As with conventional backpacks, a zipper assembly 30 can be provided along an opening along the shell 26 to allow access into the storage space 28. Additional pockets 32 can optionally be provided anywhere along the shell 26.
The support frame 22 has a peripheral loop member 34 that is adapted to extend along the entire periphery of the rear wall 36 of the casing 12. The loop member 34 defines the shape of the rear wall 36 of the casing 12. A plurality of curved rigid bars 38, 40 extend between two opposite sides of the loop member 34, and are oriented so that each bar 38, 40 curves away from the plane defined by the loop member 34. A first set of rigid bars 38 curves away from the plane defined by the loop member 34, and towards the back panel 24. A second set of rigid bars 40 curves away from the plane defined by the loop member 34, and towards the rear wall 36. With this arrangement, the two sets of bars 38, 40 define an opened and elongated space 42 therebetween. The loop member 34 and the bars 38, 40 can be embodied in the same material, and examples include a steel frame member, and rigid plastic.
The back panel 24 has a body section 50 with a meshed section 52 at about the center thereof. The body section can be made of a relatively flexible yet tough material, such as canvas or nylon. Paddings 54 can be provided along the body section 50 to provide comfort to the user's back. The meshed section 52 is made of a mesh material (e.g., a nylon mesh) that has openings therein so that air from the space 42 can travel freely through the meshed section 52 to provide ventilation to the user's back. Each carrying strap 14, 16 has a top end that is secured to the top edge of the back panel 24, and a bottom end that is secured to the bottom edge of the back panel 24, using conventional techniques. Padding (not shown) can be provided on selected portions of the carrying straps 14, 16 to provide comfort and support for the user's shoulder. Each carrying strap 14, 16 can be made of a fabric or other similar material used by conventional backpacks.
Each lower back strap 18, 20 has one end that is secured to the left or right side edge of the back panel 24 adjacent the bottom thereof, and each lower back strap 18 and 20 also has a free end 60 and 62, respectively, that are adapted to be removably attached to each other. For example, a removable attachment mechanism 64 (e.g., buckles, hooks, ties) can be provided adjacent the free ends 60, 62 to allow the free ends 60, 62 to be removably attached to each other. The lower back straps 18, 20 can be elastic, and be made from a sturdy yet flexible material, such as a leather-type belt, and functions to provide support to the user's lower back. Meshed pieces 55 can be provided along the side edges of the body section 50. The casing 12, the support frame 22 and the back panel 24 can be assembled together as shown in
In use, the user pulls the carrying straps 14, 16 over his/her shoulders in the same manner as pulling a conventional backpack over the user's back. Then, the user secures the lower back straps 18, 20 together about the user's lower back area adjacent the waist. The lower back straps 18, 20 function to support the user's lower back area, while the air channel 66 vents the user's back, and the bars 38, 40 provide separation between the items inside the casing 12 and the user's back.
The support frame 70 in
The bag 10a differs from the bag 10 in that the support frame 22 of
In
The bag 10c differs from the bag 10 in that the support frame 22 of
While the description above refers to particular embodiments of the present invention, it will be understood that many modifications may be made without departing from the spirit thereof. The accompanying claims are intended to cover such modifications as would fall within the true scope and spirit of the present invention.
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Number | Date | Country | |
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