The invention is generally directed to a portable support cushion which converts from a flat storage position to a three dimensional engaged position, and specifically to a body support cushion which provides back support when either sitting or lying down as well as other uses for the portable support cushion. The portable support cushion can be stored in a briefcase or other business container in its flattened condition, taken out and assembled without any tools for use and then returned to the briefcase or other container following use for later use at another time.
When travelers sit on airplanes, trains or buses the seats generally provide relatively poor support for the back and, in particular, the lower back or lumbar region, which can be uncomfortable or painful for many people. A simple solution for this is a lumbar pillow or cushion designed to maintain the spine in the proper orientation. However, prior cushions or lumbar support members are generally bulky pillows or foam cushions which, while appropriate and useful in their intended function, are not convenient for use in travel.
Regular travelers, often known as “Road Warriors,” always seek to minimize the amount of items carried with them and reduce the weight and bulk of the items regularly carried with them. As a result, this important group of travelers, as well as regular bus and train commuters, are unlikely to obtain any real benefit from the existing back support cushions, which, while functional, are not easily transportable due to their failure to compress to a more manageable size for stowage and transportation of the cushions when not in use. To the extent that blow-up cushions are utilized, these require the user to inflate them, which is both inconvenient and difficult, particularly with airplanes with the changes in altitude affecting the size and pressure of the cushion.
Accordingly, there is a need for an enhanced body support cushion which provides the ability to position the cushion at an appropriate spot on a chair back or other seating location in a three dimensionally deployed fashion which has a generally flat surface which rests against the chair back and a rounded surface which maintains its shape under pressure to enforce the required curvature in the lower back, but which can be easily and quickly converted from a cushion shape to a flat form, where it can be easily stowed in a briefcase for storage and transportation when not in use without adding unnecessary weight or bulkiness. There is also a need for a portable support cushion for supporting other body parts such as the knees and ankles or objects such as a laptop computer on the legs and as a variable height shim which may be used in leveling items for temporary or permanent use.
The invention is generally directed to a portable support cushion, including first and second sections of the cushion for forming respective portions of the surface of the cushion adapted to each shift from a flattened state to a flexed state, first and second coupling members on the respective first and second sections for selectively, releasably coupling first ends of the first and second sections to each other, and coupling means coupling the first and second sections to each other in a position remote from the point of connection of the first and second coupling members to enable the first and second sections to be positioned either in a co-planar position corresponding to a storage configuration and to an opposed position corresponding to a support cushion position.
Another object of the invention is to provide an improved body support cushion which is easily transportable in a flat condition when not in use and easily convertible to a support cushion configuration.
Yet another object of the invention is to provide an improved body support cushion designed to provide lumbar support for the user by resting against a chair back in its deployed condition and easily convert without tools to a flattened condition in which it can be easily transported.
Still a further object of the invention is to provide an improved body support cushion for supporting the lower back of a user in either a vertical or horizontal orientation which is transportable in a relatively flat condition.
Still another object of the invention is to provide an improved transportable laptop support cushion for supporting a laptop computer on a user's legs to avoid the heat from the laptop computer's causing discomfort and also providing air around the laptop computer's base to support cooling, which is easily converted to a flat form for easy transportation along with the laptop computer.
Still a further object of the invention is to provide an improved body support cushion which is convertible from a relatively flat form to a deployed form suitable for use as a neck roll support, foot, ankle, or knee support cushion.
Yet still a further object of the invention is to provide an improved transportable body support cushion which stays in place on the chair back while the user sits down on the chair.
Still a further object of the invention is to provide an improved portable support cushion which acts as a shim to elevate a portion of an object a variety of different distances.
Still other objects and advantages of the invention will, in part, be obvious and will, in part, be apparent from the specification.
The invention accordingly comprises the features of construction, combinations of elements and arrangements of parts which will be exemplified in the construction as hereinafter set forth, and the scope of the invention will be indicated in the Claims.
For a fuller understanding of the invention, reference is had to the following description taken in connection with the accompanying drawings, in which:
Reference is first made to
Support cushion 100 includes chair side cushion 101 and body side cushion 102 connected with a hinge 103. In a current preferred embodiment of the invention hinge 103 as best seen in
A series of engaging slots 104, 105 are found in chair side cushion section 101 and are adapted to receive tabs 106, 107 respectively in body side cushion section 102. The slots 104, 105 are preferably slightly angled as shown in the drawings and are preferably about 25 or 30 percent of the way in from each edge of section 101 to minimize distortion and provide a relatively uniform flexed contact surface. The engagement of tabs 106, 107 in one of the sets of slots 104, 105 allows the user to adjust the relative thickness and stiffness of the body support cushion 100 in its engaged or deployed state as shown in
Body side cushion section 102 is anticipated to both rest against the user's back or other body part and have the substantial bulk of the curvature in the engaged state. Holes 108 shown on body side cushion section 102 create air holes which serve several functions. First, they allow air and heat to escape so that the use of body support cushion 100 does not cause the user's body to sweat excessively in the area of the body support cushion. In addition, they enhance the flexibility of the body side cushion section 102 so that when tabs 106, 107 are engaged with slots 104, 105, more of the tension in the panels is converted into bending by the body side cushion section 102 than the chair side cushion section 101. Another purpose is to reduce the overall weight of the body support cushion 100 so that during transportation in a briefcase or other transport device when not deployed, its weight is reduced. Curved slots 109, 110 and straight slot 111 in body side cushion section 102 are used to enhance the flexibility of body side cushion section 102 further. They provide enhanced flexibility both parallel to hinge 103 and at varying angles through an angle perpendicular of hinge 103. The slots can be changed to enhance the flexibility or stiffen the surface. To make the surface more compliant additional changes can be made such as making the section 102 thinner either in total or in selected areas. In this way the surface will fit more smoothly against the user's back or in supporting some other body part or item.
Connection nubs 112, shown on the surface of chair side cushion section 101 are formed in a current preferred embodiment of the invention as cone-shaped extensions having a height between 1/32nd and ¼th of an inch in length, more preferably between 1/16th of an inch and ⅛th of an inch and, even more preferably, about 3/32nds of an inch in length. Alternatively, a Velcro® hook and pile connector hook pad can be affixed to the outer surface of the chair side cushion section to serve the same purpose. The connection nubs 112 or hook and pile type connector serve the function of providing sufficient frictional contact with the seat after the user positions the body support cushion before the cushion is held in place by the force of the wearer's back on the cushion and chair. The connection is not so strong as to prevent the user from adjusting the position of body support cushion 100 in place once the user is seated on the chair.
Reference is next made to
While hinge 103 as shown in
In another current preferred embodiment of the invention, as shown in
In a current preferred embodiment of the invention the body support cushion 100 including sections 101 and 102 and living hinge 103 are formed from polypropylene, which are injection molded. The cushion 100 is preferably made of sheets of polypropylene, such as 1/16 inch sheets, though different thicknesses are appropriate depending on the use of the cushion and the specific characteristics of the material used. Alternate plastics may be injection molded including Delrin® from DuPont and other plastics which exhibit the required physical characteristics which include the ability to form a living hinge, sufficient flexibility to allow the bending and supporting functions without splintering or cracking, and sufficient stiffness to create a tension force which provides the support in the cushion. The body support cushion can be manufactured from other materials which have the appropriate characteristics which are not plastics as well, though the current preferred embodiment is to injection mold polypropylene.
While slots 104, 105 and tabs 106, 107 are used in a current embodiment of the invention, other conventional connectors may also be suitably used such as pins and holes or the like. Also, as shown in
In a current preferred embodiment of the invention, in the flattened position the body support cushion has dimensions which are sized so that it has dimensions approximately 8½ by 11 inches so that it fits into similar files or folders as traditional sized 8½ by 11 inch paper. Variations in size are possible for bigger or smaller sizes. In other preferred embodiments of the invention where the body support cushion is used for the neck, ankle or knee support or to support a laptop computer, a smaller flat size of the body support cushion may be utilized.
The multiple slots 104, 105 provide the user with the ability to adjust the degree of curvature and volume most suitable to that user's physique and comfort when it is used as a body support cushion. As shown in
Reference is next made to
Reference is next made to
Reference is next made to
In another preferred embodiment of the invention the surface of the body side support section 102, which contacts the user's body can be softened or cushioned by adding a foam pad or similar element which does not significantly increase the thickness of the body support cushion in its flattened state.
In use, a traveler boarding a plane, bus or train, as they are getting settled, would remove the flat body support cushion 100 from their briefcase, where it lays flat along with other papers and files, fold it and engage tabs 106, 107 in slots 104, 105 to the desired position and then position the deployed body support cushion 100 with the relatively flat surface of section 101 and the conical points 112 against the chair back at the appropriate height and then situation themselves in the chair. Any adjustments to the positioning could be done while the user is already seated by merely leaning forward and readjusting the positioning. When the user is ready to leave the plane, train or bus, they need merely lean forward, remove the body support cushion 100 from behind them, disengage tabs 106, 107 from slots 104, 105, flatten the sections 101, 102 along hinge 103 and reinsert the flattened body support cushion 100 back into their briefcase. A travel case can be provided which prevents wear and tear on the body support cushion 100 and, in another preferred embodiment of the invention be placed over the deployed components like a pillow case to provide a more finished look and feel as well as some cushioning.
Accordingly, an improved body support cushion which is suitable for traveling and is easily transportable in a flat condition and then deployed without the need for any tools to a support cushion condition is provided. The body support cushion is also suitable for supporting a laptop computer on a user's legs to avoid excess heat build up and allow air circulation around the laptop computer. The body support cushion, in addition to supporting the lumbar region of the wearer's back, may also be used to support below the user's knees, ankles or lumbar support region while laying horizontally.
It will thus be seen that the objects set forth above, among those made apparent in the preceding description, are efficiently obtained and, since certain changes may be made in the above constructions without departing from the spirit and scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative, and not in a limiting sense.
It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention, herein described and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.
This application claims the priority of provisional application Ser. No. 60/669,679 filed on Apr. 8, 2005.
Number | Date | Country | |
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60669679 | Apr 2005 | US |