the sectional container of the present invention is especially suited for holding a plurality of elongated , generally cylindrical instruments such as crayons , pencils , pens , painting brushes , knives , drill bits , or the like in parallel , ordered relation . the interior shape of the container can , however , be formed differently to accommodate other types of instruments . without limiting the scope of the invention , the invention will be described in terms of a sectional container shaped like a book which is used for holding a plurality of writing , drawing and painting instruments . referring now to the drawings , wherein like reference numerals designate identical or corresponding parts throughout the several views , the figures show one embodiment of an instrument container assembly 10 having a portable carrying case 12 and a support sleeve 14 . in fig1 the instrument container assembly 10 is shown in its closed , upright and ready to carry position . the portable carrying case 12 is closed and the support sleeve 14 embraces the portable carrying case 12 in a manner so as to hinder the angular displacement of storage sections 16 and 18 from the closed position . each of the storage sections 16 and 18 has a longitudinally disposed carrying handle 20 and 22 at one end . the carrying handles 20 and 22 allow the instrument container assembly 10 and its contents to be easily transported . the preferred embodiment of the support sleeve 14 has two similarly shaped opposing side walls 24 and 26 , an open handle edge 32 , a closed bound edge 30 , and a closed edge 28 . these edges form a recess having a mouth 34 , shown in fig3 into which the carrying case 12 fits . this design allows the portable carrying case 12 to rotate in and out of the support sleeve 14 for display . the open handle edges 32 of the opposing side walls 24 and 26 are constructed with an angled sleeve rim 44 which slopes from the corner of the support sleeve formed by the sleeve binder edge 30 and the sleeve handle edge 32 , back toward the sleeve closed edge 28 . the angled sleeve rims 44 offer support to the portable carrying case 12 when the portable carrying case 12 is in the open position and can be constructed with any desirable angle to meet the needs of the standard user in a specific capacity . the portable carrying case 12 preferably is attached to the support sleeve 14 by pivot means 36 , preferably a hinge assembly , which allows the portable carrying case 12 to rotate out of the support sleeve 14 around the a -- a axis in fig1 . fig2 - 5 show the preferred embodiment of the instrument container assembly 10 in a succession of views progressing from the closed position in fig2 to the open position in fig5 . in fig2 the instrument container assembly 10 is shown in the closed position with the instrument container resting on the supporting sleeve closed binder edge 30 . fig3 illustrates the portable carrying case 12 during rotation out of the support sleeve 14 and into a position where the angular displacement of the storage sections 16 and 18 of the portable carrying case 12 are not hindered by the opposing side walls 24 and 26 of the support sleeve 14 . as the portable carrying case 12 is rotated out of the support sleeve 14 , the portable carrying case 12 comes to rest on the longitudinally disposed carrying handles 20 and 22 in a raised instrument viewing position . finger recesses 40 may be provided near the unbound edge of each storage section 16 and 18 to allow for easier grasping of the portable carrying case 12 for rotation out of the support sleeve 14 . there may be a locking projection 46 on the outer surface of one of the storage sections 18 . this locking projection 46 engages a side wall recession 48 of complementary shape in the opposing side wall 26 of the support sleeve 14 . the locking projection 46 and complimentary recess 48 are preferably semicircular in shape . together , the locking projection 46 and the sleeve wall recession 48 provide a releasable frictional lock holding the portable carrying case 12 securely within the support sleeve 14 when the instrument container assembly 10 is in the closed carrying position as in fig1 . the locking projection 46 should protrude sufficiently from the outer surface of the storage section 16 so that unless the locking projection 46 is actually matably engaged with the complimentarily shaped sleeve wall recession 48 in the side wall 24 of the support sleeve 14 , storage sections 16 and 18 will not be properly joined . when the locking projection 46 and the sleeve wall recession 48 mate , the portable carrying case 12 fits comfortably within the support sleeve 14 . when the locking projection 46 and the sleeve wall recession 48 are properly engaged , the portable carrying case 12 is between the opposing side walls 24 and 26 of the support sleeve 14 in the closed position , and the locking projection 46 must be pushed inward and out of the sleeve wall recession 48 to allow rotation of the portable carrying case 12 out of the support sleeve 14 . fig4 illustrates the rotation of the storage sections 16 and 18 about the portable carrying ca e binder member 42 into an open position in which the instruments within the portable carrying case 12 can be viewed . storage sections 16 and 18 may be connected by a hinge . however , it is preferred that storage sections 16 and 18 be connected by hinge means 17 and 19 to the opposite edges of a case binder member 42 , as shown in fig8 . hinge means 17 and 19 are constructed in such a way that each storage section 16 and 18 will rotate through at least 90 degrees relative to the case binder member 42 . thus , when portable carrying case 12 is fully opened , storage sections 16 and 18 are substantially parallel to each other , as shown in fig5 . this allows full visual inspection of all stored instruments while the instruments remain held in their stored positions . although two storage sections are preferred in the present invention , additional storage sections may also be incorporated in carrying case 12 . additional storage sections can be hingedly attached in series to storage sections 16 and 18 . fig5 shows the instrument container assembly 10 in its fully opened and supported position . once the portable carrying case 12 is opened with the storage sections 16 and 18 substantially parallel to each other , the portable carrying case 12 can be tilted back along pivot means 36 onto the angled sleeve rims 44 of the sleeve open handle edges 32 . the angled sleeve rims 44 offer support to the tilted portable carrying case 12 allowing the most comfortable visual inspection of all the stored instruments . fig5 also provides a view of the inner surface and cavity construction of the preferred embodiment of the storage sections 16 and 18 . the storage sections 16 and 18 have case walls 66 and 68 . handle edges 50 and 52 of carrying handles 20 and 22 act to effectively close those edges of the storage sections 16 and 18 . handle edges 50 and 52 also act to vertically support instruments stored in carrying case 12 . storage sections 16 and 18 also have closed bound edges 54 and 56 , and closed unbound edges 58 and 60 . the edges of storage sections 16 and 18 opposite handle edges 50 and 52 may be open , but preferably have ridges 53 and 55 running from closed unbound edges 58 and 60 to closed bound edges 54 and 56 , respectively , for further securing instruments in storage sections 16 and 18 . ridges 53 and 55 are oriented perpendicular to case walls 66 and 68 and are of such a size that ridges 53 and 55 do not contact each other when carrying case 12 is in the closed position . ridges 53 and 55 and closed unbound edges 58 and 60 also preferably contain cut - outs 57 , as shown in fig5 . cut - outs 57 , which are preferably semi - circular in shape , are located so that when carrying case 12 is in the closed position , cut - out 57 in unbound edge 58 meets cut - out 57 in unbound edge 56 , and cut - out 57 in ridge 53 meets cut - out 57 in ridge 55 to form access holes . these access holes allow carrying case 12 to be more easily opened . the preferred embodiment of the invention shown in fig5 provides a plurality of substantially u - shaped vertical recessions 70 on the inner surfaces of the storage section walls 66 and 68 for receiving such instruments as pencils , pens , paint brushes , crayons , or other similar writing instruments . because many writing instrument producers follow similar size , shape , length and diameter standards in the products they market , the recessions 70 on the storage section walls 66 and 68 are constructed with a shape that hugs a standard sized writing instrument . along the inner surface of the storage section walls 66 and 68 are storage section securing members 72 and 74 which run from the storage section closed bound edges 54 and 56 to the storage section closed unbound edges 58 and 60 of storage sections 16 and 18 , respectively . these securing members 72 and 74 are constructed without protrusions out of their respective storage section cavities that might inhibit the closing of the storage sections 16 and 18 . securing members 72 and 74 may be connected to handle edges 50 and 52 , and / or case walls 66 and 68 by one or more stiffening ribs for added strength . the securing members 72 and 74 , which preferably are made of semi - rigid plastic , have one side , the inner side , flush with the edges of the cavity that make contact with the respective securing member 72 and 74 . the other side of securing members 72 and 74 have complementary u - shaped vertical recessions 73 and 75 that mirror the u - shaped vertical recessions 70 of the storage section wall inner surfaces , as shown in fig4 . the securing members 72 and 74 are constructed with a thin profile and hence make little contact with the instruments stowed in the case section wall inner surfaces . this design allows for a reliable and effective securing system while at the same time providing for full visual inspection of all instruments whether the instruments be large or small . this design also allows easy removal of the stored instruments for use . because of the thin profile of the securing members 72 and 74 , even small and difficult to handle instruments may be secured and removed from the storage sections 16 and 18 easily . the instruments may be further secured in storage sections 16 and 18 by projections 41 on closed unbound edges 58 and 60 , and securing members 72 and 74 , which are shown in fig5 . projections 41 , which are preferably shaped in the form of a half moon , are oriented parallel to case binder member 42 . projections 41 act to hold in place removable rectangular sheets 43 ( shown in fig5 ) which further horizontally support instruments in storage sections 16 and 18 . sheets 43 may also be templates . fig5 also shows two sharpener projections 76 and 78 on one of the inner surface of storage section 16 between the longitudinally disposed carrying handle 20 and the portable carrying case binder member 42 . the sharpener projections 76 and 78 serve as an instrument sharpener holder . just as writing , painting and drawing instruments are constructed with standardized dimensions , so are instrument sharpeners . the two sharpener projections 76 and 78 are designed around the dimensions of standard sharpener size and act in concert to grip a sharpener and hold the sharpener securely in position . fig6 shows a sectional view taken along the line 6 -- 6 of fig5 . this view shows a support sleeve 80 which extends from the inner surface of the closed bound edge 30 of the support sleeve 14 . although the present invention contains the support sleeve projection 80 , it is not necessary to practice the invention . if the support sleeve projection is used , it is preferably fin - like in shape . the support sleeve projection 80 extends between and parallel to the opposing side walls of the support sleeve 24 and 26 , as can be more clearly seen in fig8 . this support sleeve projection 80 may operate in two different capacities . first , the support sleeve projection 80 , in concert with the case binder member 42 having a case binder member opening 82 , also shown in fig8 operates to guide the portable carrying case 12 into the support sleeve 14 and into the closed position as seen in fig1 . as the case binder member 42 is rotated into the support sleeve 14 , the support sleeve projection 80 enters bind ® r member opening 82 , thereby restraining the case binder member 42 to movement in a single plane toward the support sleeve closed bound edge 30 to minimize stress and fatigue on the pivot means 36 . second , the support sleeve projection 80 operates in concert with the case binder member opening 82 as a means for maintaining the portable carrying case in an open position . fig7 and 8 demonstrate the support sleeve projection 80 having a bevelled end 84 that mates with a case binder member opening receding edge 86 adjacent to case binder member opening 82 and hinders further rotation of the portable carrying case out of the support sleeve 14 . the instrument container assembly 10 is preferably constructed of a semi - rigid plastic which allows support sleeve projection 80 to bend from its primary position allowing the portable carrying case 12 to actually be pulled off the bevelled end 84 of the support sleeve projection 80 and rotated into a position as in fig3 for easy opening . once the portable carrying case 12 is in the open position , as in fig4 the portable carrying case 12 can be tilted back on the angled sleeve rims 44 of the support sleeve 14 and hooked through the case binder member opening 82 by the bevelled end 84 of the projection 80 . the semi - rigid plastic allows the bevelled end 84 and the case binder member opening receding edge 86 to temporarily bend until the bevelled end 84 is through the case binder member opening 82 and resting in the hooked position shown in fig7 . once the bevelled end 84 and case binder member opening receding edge 86 are in the hooked position as in fig7 the container assembly is in a secure viewing position . the weight of the storage sections 16 and 18 holds the portable carrying case 12 open with the angled sleeve rims 44 acting as a fulcrum between the two storage sections 16 and 18 . the angled sleeve rims 44 also act as a fulcrum between pivot means 36 and the weight of the storage sections 16 and 18 it is apparent that this description provides improved principles of design and construction with respect to instrument holding devices . in this connection , it is to be understood that various changes can be made in the general form and arrangement of the parts described without departing from the invention , and hence this description should not limit the invention to the precise details set forth in the specification , but should include all variations that are reasonably covered by the claims .
an instrument container comprising a carrying case having at least two storage sections for retaining instruments joined by at least one hinge so that said storage sections can be folded apart about at least one said hinge to open said case , a sleeve including a recess within which said carrying case fits when said carrying case is in the closed position , preferably pivot means joining said sleeve to said carrying case for permitting said case to be pivotally inserted into said recess when said case is closed , and preferably support means in said sleeve for supporting said storage sections of said case when said case is opened outside said sleeve .