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Abstract of Invention: A foldable book stand for viewing written materials, music and the like or for writing upon same, the stand is further fitted with a battery powered l Detailed Description of Invention: DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT With reference now to the drawings, and in particular FIGS. 1 through 4 thereof, the preferred embodiment of the book stand employing the principles and concepts of the present invention and generally designated by the reference number 10 will be described. Book stand 10 comprises a foldable assembly further comprised of right support leg 17 and left support leg 18. Legs 17 and 18 are about 4 inches long. At lower ends of legs 17 and 18 are fitted leg pads 30, for cushioning and position retention by surface friction. Upper ends of support legs 17 and 18 are affixed by friction pivots 40 to tops of inverted L members 23 and thereby form articulation joints 16. Right L member 23 is comprised of right transverse 19 and right column 22. Left L member 23 is comprised of left transverse 20 and left column 21. Articulation joint 16 of leg 17 and right L member 23 is positioned at the uppermost interior end of leg 17 contacting the outer surface of right L member 23 where right transverse 19 meets right column 22. Articulation joint 16 of leg 18 and left L member 23 is positioned at the uppermost interior end of leg 18 contacting the outer surface of left L member 23 where left transverse 20 meets left column 21. Midway between left and right L members 23 is pivoting T member 15 of lamp support arm 14. T member 15 on one end of arm 14 is attached by friction pivot 40 to interior-most surfaces of transverse 19 and transverse 20. The dimension from exterior surface of leg 17 through transverse 19, then T member 15, thence through transverse 20, and to the exterior of leg 18 is about 4 inches. Referring to FIG. 3, other end of arm 14 supports lamp 50 via lamp pivot 56. Pivot 56 provides for lamp 50 to pivot about arm 14 throughout an arc 57 of about 45 degrees (FIG. 2). Lamp 50 is further comprised of shade top 55 that contains, rectangularly disposed in the center, battery access 51. Angling slightly forward and downward from top 55 is forward shade 52. Opposite shade 52, rear shade 53 angles slightly outward and downward from top 55. Shades 52 and 63 are laterally connected by trapezoidal side shades 54. Top 55, forward shade 52, rear shade 53, and side shades 54 thereby form lamp shade 58. Referring again to FIG. 1, book stand 10 is further comprised of right center column 24 and left center column 25. Uppermost outer surface of column 24 pivotally attaches to lower inner surface of right column 22 of right L member 23 by way of articulation joint 16 (FIGS. 2 and 4). Interior surface of lower end of right column 24 pivotally attaches to upper exterior surface of right lower U column 26 via pivot 40 of articulation joint 16. From thence right lower U column 26 extends downward to join to lower transverse 28, forming a right angle therewith. Transverse 28 extends laterally to meet, at an opposing right angle, left lower U column 27. From thence, column 27 extends upwardly to meet on upper and outer exterior surface, lower interior surface of left center column 25. Columns 27 and 25 join at articulation joint 16 via pivot 40. Column 25 is a mirror image of column 24. Upper exterior surface of column 25 joins lower interior surface of column 21 at joint 16 by pivot 40. Referring to FIGS. 1 and 2, right column 22, angularly extends from first articulation angle 31 downward to meet right center column 24. Column 22 and column 24 pivotally meet to form second articulation angle 32. Column 24 extends downwardly to meet right lower U column 26 and joins to form, in the unfolded extended state of invention 10, third articulation angle 33. Angles 32 and 33 are, in invention 10 extended state, 180 degrees. Columns 22, 24 and 26 are thereby coplanar. Likewise, left column 21 joins left center column 25, and column 25 joins left lower U column 27 to also be coplanar to themselves and to columns 22, 24, and 26. The angular upwardly facing platform thereby formed from columns 21, 25, 27, 26, 24, and 22 provides a surface for resting books (not shown), music (not shown), or any other material chosen for viewing (not shown) or even for writing upon. Materials support brackets 35 are upwardly and forwardly disposed from the lower ends of columns 26 and 27 to support chosen materials. Further, bracket tabs 36 hold pages of materials open to pages chosen by a user (not shown). Referring to FIG. 4, articulation joint 16 is comprised of pivotal joining of interior end surface of right transverse 19 to exterior right end surface of T member 15. Pivot 40 tensionally and frictionally maintains pivotal positions of transverse 19 and member 15. Within insert orifice 48 of transverse 19 is fitted insert 41. Exterior end surface of T member 15 is constructed with insert recession 46 designed to receive insert flange 47 of insert 41. Insert shoulder 42 of insert 41 is designed to receive expansion nodule 43 on one end of shaft 45 of pin 49. On opposite end of shaft 45 of pin 49 is head 44. Head 44 is held snugly against end of T member 29. Pivot 40 thereby securely retains chosen positioning of articulation joints 16 by way of tension and friction. Referring to FIG. 3, invention 10 is in a folded, or collapsed, state. Invention 10 is thereby a substantially planar square of about 4 inches per side. Right support leg 17 is identical in length to outer surface of right column 22. Inner surface of column 22 is equal in length to column 24. Column 24 is equal in length to outer surface of right lower U column 26. Likewise, leg 18 is identical in length to outer surface of left column 21. Inner surface of column 21 is equal in length to left center column 25. Center column 25 is identical in length to outer surface of left lower U column 27. Articulation joints 16 of T member 15 and corresponding transverses 19 and 20 provide for pivot of member 15 and hence arm 14. This provides not only for adjustment but also the subsequent fit of lamp 50 within the interior surfaces of columns 26 and 27 when stand 10 is folded. Lamp pivot 56 provides for lower edges of shades 52 and 53 to pivot to preferred position. These pivotal features therefore also provide that invention 10 is selectively substantially flat for transport or storage. For use, legs 17 and 18 are pivoted about L members 23 to form angle 31. Columns 24 and 25 are pivoted from columns 22 and 21 to form angle 32 of 180 degrees. Lower transverse 28 is grasped and unfolded pivotally to form angle 33 of 180 degrees and to position columns 26 and 27 coplanar to columns 24 and 25. Combined length of unfolded columns 22, 24, and 26 is about 12 inches. Combined length of columns 21, 25, and 27 is about 12 inches. Arm 14 is pivoted to position as desired. Lamp 50 is pivoted about arc 57 via lamp pivot 56. Battery access 51 is removed from shade top 55 to install two AAA batteries (not shown) within lamp 50. Access 51 is then refitted. Lamp switch 59 is twisted to turn on lamp 50. Desired materials are placed upon upper surface of columns 21, 22, 24, 25, 26, and 27. Materials are restrained by materials support bracket 35 and bracket tabs 36 such that any pages (not shown) remain open as placed. Invention 10 may be rested on any desired surface (not shown). Cessation of use of invention 10 provides for reversal of the above procedure such that invention 10 is returned to substantially flat profile for transport or storage. With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of the book stand, to include variations in size, materials, shape, form, function and the manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention. Therefore, the foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention Patent Level of Invention: Patent Application Approved Type of Assistance Needed:
Contact Person: Flavius Jefferies City: Ellenwood State: Georgia Country: United States Username (used to contact inventor): Flav.864 |
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| Date added: 2008-05-24 19:20:47 Hits: 182 |
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