reference is first made to fig1 - 5 wherein a portable support cushion generally indicated as 100 constructed in accordance with a preferred embodiment of the invention is depicted . like elements are represented by like reference numerals . portable support cushion 100 as seen in fig5 is a flat , thin member , preferably injection molded out of a plastic material as a single , integral unit . in a current preferred embodiment portable support cushion 100 is used as a body support cushion in connection with a chair , as seen in fig1 and 15 . the discussion will focus initially on the embodiment shown in fig1 - 5 particularly suitable for use as a body support cushion for providing back support as seen in fig1 and 15 . 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 fig5 and the enlarged partial view of fig4 , is formed as a living hinge which is a reduced thickness portion of plastic which allows the two sections 101 , 102 to rotate about the connecting line formed by hinge 103 but permanently securing the two sections 101 , 102 together . the living hinge is formed in accordance with conventional technology dependent on the materials utilized , molding process and dimensions of the portable support cushion 100 . 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 fig6 - 13 . each of the pairs of figures , starting with fig6 and 7 and including fig8 and 9 , fig1 and 11 and fig1 and 13 is a perspective view of one of the four different engagement points of the portable support cushion 200 and its corresponding side elevational view . cushion 200 varies from cushion 100 only by addition of two additional slots 122 , 123 . the variation in slots corresponding to the tabs allows the thickness and curvature of the portable support cushion to be adjusted so that it fits the intended need most closely . as seen in fig7 , 11 and 13 , the thickness of the arc of body side cushion section 102 can be increased or decreased by selecting a different slot 104 , 105 to engage tabs 106 , 107 . body side cushion section 102 is anticipated to both rest against the user &# 39 ; 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 &# 39 ; 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 &# 39 ; 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 / 32 nd and ¼ th of an inch in length , more preferably between 1 / 16 th of an inch and ⅛ th 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 &# 39 ; 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 fig6 - 13 wherein the body support cushion 100 is shown in its deployed state with tabs 106 , 107 engaged in slots 104 , 105 . to assemble the cushion from its storage condition as shown in fig1 and 3 the user merely folds sections 101 and 102 along the hinge 103 exerting sufficient force to bend sections 101 and 102 , though primarily section 102 will deflect , until tabs 106 , 107 align with one of the series of slots 104 , 105 and then lock in place . because of the absence of additional slots or other openings in section 101 , as are found on body side cushion section 102 , on chair side cushion section 101 and its smaller width as compared to body side cushion section 102 ( which includes slits 108 , 109 , 110 and 111 and is wider , which enables section 102 to curve along an axis parallel to hinge 103 more easily than section 101 ), chair side cushion section 101 tends to remain relatively flat in the deployed state . the effect of this , as seen in fig7 , 11 and 13 is that the section 102 is more curved than section 101 . while the figures show the section 101 nearly straight there is generally some flexing of section 101 , though not nearly as much as is found in section 102 . section 101 is designed to be stiffer than section 102 so that the tension in the cushion 100 is held by section 101 and stored in the curved section 102 like a spring . while hinge 103 as shown in fig1 - 5 is a living hinge which is continuous across the entire width of the connection between sections 101 and 102 , a living hinge or even a hinge formed with separate sections 101 , 102 is possible where , for example , there are two or three sections of hinges with hinge portions like the two or three hinges on a door . alternatively , rather than having sections 301 , 302 permanently attached to each other , they can be removably attached as shown in the embodiments of fig1 and 17 . in fig1 , portable support cushion 300 includes two discrete hooking hinges 331 , 332 which engage with slots 333 and 334 , respectively to allow sections 101 , 102 to rotate with respect to each other without otherwise moving laterally , much in the same way as the embodiment of fig1 - 5 . similarly , in the embodiment of fig1 , portable support cushion 400 includes two discrete sections 401 , 402 which are releasably connectable to each other with hook 431 and hook 432 which run along the length of sections 401 , 402 , respectively and engage in the same way as the living hinge or the embodiment of fig1 . in another current preferred embodiment of the invention , as shown in fig1 , portable support cushion 600 includes sections 601 , 602 and hinge 103 ( not shown ), as in the embodiment of fig1 - 5 , but also includes a second hinge 605 which divides section 602 into two sub - sections 603 , 604 . in its deployed mode , as shown , the cushion 600 takes on a triangular rather than curved profile on the top . this is suitable for applications like supporting under a wearer &# 39 ; s knee or ankle or to support the leg or for supporting an item which would be held in place by the triangular shape of the support surface . 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 fig1 , the portable support cushion 500 , including sections 501 , 502 connected by living hinge 503 are connected on the other end with hook and pile connectors 506 and 507 , 508 . in this embodiment there are only two pads 507 , 508 which can be selectively utilized with the pad 506 to allow adjustment . in other embodiments more rows of pads can be used as in the embodiment of fig1 - 5 with four sets of slots . the only requirement is that the connection be sufficiently sturdy . 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 &# 39 ; s physique and comfort when it is used as a body support cushion . as shown in fig1 and 15 , when used as a lumbar support , the body support cushion 100 is trapped in place between the chair 11 on the back and user 10 and in particular the buttocks and back on the bottom and top , respectively . reference is next made to fig2 wherein a portable support cushion 800 in accordance with another preferred embodiment of the invention is shown . the cushion 800 can be made in accordance with the various alternatives described above . in this case it is used to support a person &# 39 ; s foot 14 off the ground while the person 10 sits on chair 11 . similarly , as shown in fig2 , a portable support cushion 700 resting under a person &# 39 ; s leg 15 supports the knee off the chair 11 . reference is next made to fig2 wherein a portable , adjustable laptop support cushion 900 constructed in accordance with another preferred embodiment of the invention is shown . support cushion 900 acts to support a laptop computer 30 on a user &# 39 ; s lap 15 and provides several benefits . it provides for air to flow around and under the laptop so it doesn &# 39 ; t overheat which often happens when it sits on a person &# 39 ; s lap for any period of time . also , it prevents the person &# 39 ; s legs from getting overheated due to sitting under the hot laptop . in addition , it allows , with its adjustability , as with the cushion 100 , to adjust the height of the laptop to an ergonomically suitable location . reference is next made to fig2 wherein a portable , adjustable shim 1000 constructed in accordance with another preferred embodiment of the invention is shown . shim 1000 acts to support a leg 41 of table 40 to level the table &# 39 ; s top . the shim can be used in a wide variety of applications for temporary or permanent leveling needs . generally , the shims can be made much smaller than the cushions 100 which would be used as a back support cushion . the shims have the multiple slots for the tabs , or other closures which allows the user to adjust their thickness which is a critical element of the operability of a shim which is used to add a spacer to a required location . the shims 1000 can be adjusted easily and transported flat to the appropriate location where they are assembled and used . a variety of sizes of shims can be manufactured and brought to a location in a flat form which makes transportation and leveling of a variety of furniture , appliance , work surface and other objects . in another preferred embodiment of the invention the surface of the body side support section 102 , which contacts the user &# 39 ; 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 &# 39 ; 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 &# 39 ; s back , may also be used to support below the user &# 39 ; 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 .
a body support cushion including a first section of the cushion for forming a portion of the surface of the cushion , adapted to shift from a flattened state to a flexed state and a second section of the cushion for forming another portion of the surface of the cushion , adapted to shift from a flattened state to a flexed state . a hinge couples adjoining edges of the first and second sections . a first coupling member on the first section is selectively , releasably coupled to a second coupling member on the second section to create a body support cushion in which the first and second sections are flexed which results in a body support cushion capable of moving from a flattened state to a flexed state . the body support cushion is particularly suitable for supporting a user &# 39 ; s lower back when sitting in a chair . it is also suitable for supporting other body parts such as the knee , ankle or even the back when laying down . it can also be used to support a laptop computer or other object on one &# 39 ; s legs or lap when sitting .