Wheelchair armrest storage compartment
BACKGROUND OF THE INVENTION 
     This invention relates to a compartment for carrying articles that is fixedly attached to a wheelchair frame and acts as an armrest. 
     Prior art discloses add on wheelchair attachments for carrying a large number of small articles and a few book sized articles. 
     It is the general object of this invention to provide wheelchair occupants easily accessible, safe, unobtrusive storage for small personal articles, identification and money. 
     Another object is to provide a wheelchair storage compartment which does not interfere with necessary wheelchair functions such as: 
     movement of the wheelchair with the propulsion rings, 
     folding the wheelchair for storage or transport, 
     removal of the armrest frame for occupant transfers, 
     operation of brakes, belt tensioners, foot rests, and other wheelchair accessories. 
     These and other objectives will be made apparent in the following description and claims. 
     SUMMARY OF THE INVENTION 
     The present invention is a storage compartment for small personal articles that is fixedly attached to a wheelchair armrest frame. The closed compartment cover acts as the wheelchair armrest. The cover is hinged with flexible fabric so that when the cover is open it hangs outside of the wheelchair occupant&#39;s space between the armrest frames. The article storage compartment above the armrest frame is shallow to minimize armrest height and one embodiment has a deep storage compartment external to the occupant space parallel to the wheelchair armrest frame. The deep storage compartments have removable liners to facilitate article storage and retrieval. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view of two wheelchair armrest storage compartments installed in the preferred orientation on a wheelchair. 
     FIG. 2 is a front section view of the preferred embodiment of the armrest storage compartment with the cover closed. 
     FIG. 3 is a side section view of the preferred embodiment of the storage compartment with the cover closed. 
     FIG. 4 is a top view of the preferred embodiment of the storage compartment with the cover partially open. 
     FIG. 5 is a front section view of a second embodiment of the armrest storage compartment with deep storage compartment liners removed for clarity. 
     FIG. 6 is a top view of the second embodiment of the armrest storage compartment with the cover partially open and deep storage compartment liners removed for clarity. 
     FIG. 7 is an isometric view of the second embodiment of the armrest storage compartment with deep storage compartment liners included and the cover fully open. 
    
    
     DESCRIPTION OF THE INVENTION 
     FIG. 1 illustrates two embodiments of wheelchair armrest storage compartments 1 and 2 mounted on a wheelchair 3 and fixedly attached to wheelchair armrest frames 4 and 5. The preferred installation has compartment walls 6, 7 not occupying any occupant space 8 between armrest frames 4 and 5. 
     The substantially vertical outboard compartment surfaces 9, 10 are intended to not interfere with occupant operation of wheel propulsion rings 11. 
     FIG. 2 illustrates a cutaway section of storage compartment 1 with the cover 13 in the horizontal closed position with all exterior surfaces of 13 and corners 20,21 rounded. Closed cover 13 is supported on its bottom periphery by ridge 14 on the interior of compartment substantially vertical outer walls 6 and acts as wheelchair occupant armrest. Cover 13, exterior walls 6,9, interior wall 12, and bottom 22 are substantially rigid material. 
     Cover 13 is hinged to storage compartment wall 9 by a flexible fabric 16. Fabric 16 is attached to wall 9 and cover 13 and is long enough between attachments 9, 13 to permit fully open cover 13 to hang approximately parallel to the approximately vertical compartment wall 9. Excess hinge fabric 16 is folded within the interior of storage compartment 1 when the cover 13 is closed. 
     Storage compartment 1 is attached by threaded means 27 to the wheelchair armrest frame 4 in depression 26 in the substantially horizontal bottom 22 of storage compartment 1 parallel to the compartment wall 6 adjacent to occupant space 8. Threaded means 27 maintains compartment 1 as vertical armrest load bearing member between wheelchair occupant and armrest frame 4. 
     The cover 13 is opened with a length of ribbonlike material 28 removably attached to the cover 13 by buttonlike attachments 19. The ribbonlike material 28 passes between the cover 13 and compartment vertical wall 6 to the exterior of the compartment near the wheelchair occupant who can open the cover by pulling upward on the ribbon. 
     FIGS. 3 and 4 illustrate internal compartment wall 12 which assists in support of the closed compartment cover 13 releasably. The cover 13 is held closed by grasping internal wall 12 with latch elements 14, 15 attached to inside surface of cover 13. 
     The entrance opening distance 17 between latch elements 14, 15 is less than the width of the round bead 18 on the top of wall 12 so that force is required to open or close cover 13 by forcing latch elements 14, 15 over bead 18. Storage compartment end walls 20, 21 have rounded corners and cover 13 support ridge 14. 
     FIG. 5 illustrates a front cutaway section of an alternate storage compartment 2 with deep storage compartment 30 parallel to the armrest frame 5 outside of the occupant space 8. The compartment cover 31 is supported on its periphery by ridge 32 and deep storage compartment wall 33. The cover 31 is hinged by flexible fabric 34 to compartment wall 10. Latch elements 36, 37 hold the cover 31 closed when forced over the round bead 38 on the top of deep storage wall 33. Ribbonlike material 39 is removably attached to cover 31 at 40. The ribbon 39 passes between closed cover 31 and compartment wall 7 and is used to open cover 31. Compartment 2 rests on frame 5 in depression 43 and is attached to armrest frame 5 by threaded means 42. 
     FIG. 6 is a top view of storage compartment 2 with cover partially open which illustrates placement of the deep storage 30 relative to armrest frame 5. The storage compartment 2 configuration above armrest frame 5 has rounded corners 43 and 44 and cover 31 support ridge 32. 
     FIG. 7 is a cutaway perspective view of storage compartment 2 with cover 31 fully open illustrating deep storage compartment 30 removable liners 50, 51. Liner 50 storage volume 66 is separated by inclined shelves 52, and is slidably confined within storage compartment 30 substantially vertical walls 10, 33. Liner latch spring 54 forces liner latch 53 against compartment wall 33. When liner 51 is raised sufficiently by wheelchair occupant using flexible attachment 55, spring loaded liner latch 56 engages the compartment wall 33 on latch edge 57 and holds the liner 51 in a raised position. To lower liner 51 the wheelchair occupant forces liner latch 56 off of latch edge 57 and liner 51 slides back into compartment 30. 
     Liner 51 storage volume is contained within liner vertical walls 58, 59, 60 and is accessible from open liner side 62 and open top 63.