Sheet holders

Abstract

A novel sheet holder either with or without a board. The sheet holder comprises a base angle plate and a holding angle plate, connected by extension springs for toggling said holding angle plate between a closed position for holding said sheet and an open position for removing said sheet. Two pegs and a rubber block with groove are installed for increasing the number of held sheets and more securely holding the mounted sheets. The present sheet holding board can be rotatably mounted to the back of a picture frame with locking feature. The sheet holder without board can be applied for holding advertisement sheet for indoor and outdoor display. Novel art hanging and control system will raise and lock the art for display, and lower it to a reachable level for display change. This art may include an art sheet, 3D art, or a computer monitor showing advertisement message. For outdoor display, a clear vinyl cover can be employed for holding an art sheet and protect it from UV radiation, rain and wind damage. A spring or weight load can be employed to maintain the art to be displayed in its uppermost position and leveled. Such spring and weight load can also be used in a flagpole for such benefit.

1 . An art sheet display system for displaying an art sheet, comprising:
 (A) a sheet holder, having (a) a base,
 (b) a holding member rotatable with respect to said base, and 
 (c) two spaced apart extension springs for toggling said holding member between
 (i) a closed position for holding said art sheet, and 
 (ii) an open position for mounting or removing said art sheet. 
 
   
     
     
         2 . The art sheet display system of  claim 1 , in which said base includes two pegs for holding said art sheet. 
     
     
         3 . The art sheet display system of  claim 2 , in which said base includes a resilient groove engageable with said holding member for holding said art sheet. 
     
     
         4 . The art sheet display system of  claim 1 , in which said base includes a board. 
     
     
         5 . The art sheet display system of  claim 1 , in which said holding member includes an elongated angle plate. 
     
     
         6 . The art sheet display system of  claim 1 , also comprising: (B) a fixture, and
 (c) a rope hanging said sheet holder on said fixture, for
 (a) raising said art sheet to a first position for displaying said art sheet, and 
 (b) lowering said art sheet to a second position for removing said art sheet. 
   
     
     
         7 . An art display system, comprising:
 (A) an art,   (B) a fixture, and   (C) mounting means for
 (a) raising said art to a mounted position for mounting said art to said fixture, and 
 (b) lowering said art to a reachable position for removing said art. 
   
     
     
         8 . The art display system of  claim 7  also comprising:
 (D) a first guiding rope for hand guiding the raising and lowering of said art, said first guiding rope having
 (a) a front portion tied to said art, and 
 (b) a back portion pullable for holding said art at said mounted position, and releaseable for lowering a portion of said first guiding rope to said reachable position, while keeping said art at said mounted position. 
   
     
     
         9 . The art display system of  claim 7  also comprising:
 (D) a first movable weight, and   (E) a first guiding rope for hand guiding the raising and lowering of said art, said first guiding rope having
 (a) a front portion tied to said art, and 
 (b) a back portion
 (i) pullable for holding said art and said first movable weight at said mounted position, and 
 (ii) releaseable for lowering said first movable weight and a portion of said first guiding rope to said reachable position, while keeping said art at said mounted position. 
 
   
     
     
         10 . The art display system of  claim 9 , in which said first movable weight is a first pulley. 
     
     
         11 . The art display system of  claim 7 , in which said mounting means includes a mounting rope. 
     
     
         12 . The art display system of  claim 11 , also comprising:
 (D) an extension spring for maintaining said art at said mounted position.   
     
     
         13 . The art display system of  claim 12 , in which said extension spring is attached to said mounting rope. 
     
     
         14 . The art display system of  claim 13 , in which said fixture includes a flagpole. 
     
     
         15 . The art display system of  claim 11 , also comprising:
 (D) a stretching weight for maintaining said art at said mounted position.   
     
     
         16 . The art display system of  claim 15  in which said stretching weight is placed on a horizontally positioned section of said mounting rope. 
     
     
         17 . The art display system of  claim 11 , in which said art includes an art sheet having two mounting holes engageable with said mounting rope for raising and lowering said art sheet. 
     
     
         18 . The art display system of  claim 11 , in which said art includes a computer monitor engageable with said mounting rope for raising and lowering said computer monitor. 
     
     
         19 . The art display system of  claim 11 , also comprising:
 (D) a sheet holder
 (a) for removably holding said art in said sheet holder, and 
 (b) engageable with said mounting rope for hanging said art on said fixture. 
   
     
     
         20 . The art display system of  claim 18 , in which said sheet holder includes a foldable clear cover for holding said art inside said clear cover.