초록 ▼

An adjustable book holder includes two primary frames, and one or more auxiliary frames selectively secured between the frames, to increase holding of more books or sheet members to the book holder. The primary frames and the auxiliary frames may be secured together with peg-and-aperture engagements

An adjustable book holder includes two primary frames, and one or more auxiliary frames selectively secured between the frames, to increase holding of more books or sheet members to the book holder. The primary frames and the auxiliary frames may be secured together with peg-and-aperture engagements. Two followers may be attached to the frames, and may be coupled between the primary frames and the auxiliary frames, and may be rotatably or adjustably secured to two seats, with gear engagements, to allow the followers and the primary and the auxiliary frames to be secured to the seats at selected angular positions.

대표청구항 ▼

1. An adjustable book holder comprising:a first frame,a second frame,at least one auxiliary frame selectively secured between said first and said second frames, anda first follower and a second follower attached to said first and said second frames respectively, each of said first and said second fr

1. An adjustable book holder comprising:a first frame,a second frame,at least one auxiliary frame selectively secured between said first and said second frames, anda first follower and a second follower attached to said first and said second frames respectively, each of said first and said second frames including a cavity formed therein, each of said first and said second followers including a catch extended therefrom and engaged into said cavities of said first and said second frames, to secure said first and said second followers to said first and said second frames respectively.2. The adjustable book holder as claimed in claim 1, wherein said first frame includes at least one aperture formed therein, said at least one auxiliary frame includes at least one peg extended therefrom to selectively engage into said at least one aperture of said first frame, to secure said first frame and said at least one auxiliary frame together.3. The adjustable book holder as claimed in claim 1, wherein said at least one auxiliary frame includes at least one aperture formed therein, said second frame includes at least one peg extended therefrom to selectively engage into said at least one aperture of said at least one auxiliary frame, to secure said second frame and said at least one auxiliary frame together.4. The adjustable book holder as claimed in claim 1, wherein said first frame includes an upper beam and a lower beam each having a plurality of orifices formed therein, for rotatably receiving axles of sheet members.5. The adjustable book holder as claimed in claim 1, wherein said second frame includes an upper beam and a lower beam each having a plurality of orifices formed therein, for rotatably receiving axles of sheet members.6. The adjustable book holder as claimed in claim 1, wherein said at least one auxiliary frame includes an upper beam and a lower beam each having a plurality of orifices formed therein, for rotatably receiving axles of sheet members.7. The adjustable book holder as claimed in claim 1, wherein said first follower includes at least one aperture formed therein, said at least one auxiliary frame includes at least one peg extended therefrom to selectively engage into said at least one aperture of said first follower, to secure said first follower and said at least one auxiliary frame together.8. The adjustable book holder as claimed in claim 1, wherein said at least one auxiliary frame includes at least one aperture formed therein, said second follower includes at least one peg extended therefrom to selectively engage into said at least one aperture of said at least one auxiliary frame, to secure said second follower and said at least one auxiliary frame together.9. An adjustable book holder comprising:a first frame,a second frame,at least one auxiliary frame selectively secured between said first and said second frames,a first follower and a second follower attached to said first and said second frames respectively, anda first seat and a second seat secured to said first and said second followers respectively.10. The adjustable book holder as claimed in claim 9 further comprising means for adjustably securing said first and said second followers to said first and said second seats respectively at selected angular positions.11. The adjustable book holder as claimed in claim 10, wherein said adjustably securing means includes a first gear attached to said first seat, and a second gear attached to said first follower and engageable with said first gear, to secure said first follower and said first seat together at selected angular positions.12. The adjustable book holder as claimed in claim 10, wherein said adjustably securing means includes a first gear attached to said second seat, and a second gear attached to said second follower and engageable with said first gear, to secure said second follower and said second seat together at selected angular positions.