Reading desk deformation preventing structure

Abstract

Provided is a reading desk deformation preventing structure, including: a reading desk; and a rectangular long bar-shaped quadrangular support bar having a bolt hole in each of both ends and of which the center is concavely curved, wherein the concave center portion of the quadrangular support bar is located behind the reading desk and a bolt is inserted into the bolt hole of the quadrangular support bar, and thus the center portion of the reading desk configured to receive a convexly curved force by the quadrangular support bar receives a force from a protruding portion of the quadrangular support bar which acts against warpage so that the reading desk neatly maintains a flat surface.

What is claimed is: 
     
         1 . A reading desk deformation preventing structure, comprising:
 a reading desk; and   a rectangular long bar-shaped quadrangular support bar having a bolt hole in each of both ends and of which a center is concavely curved,   wherein the concave center portion of the quadrangular support bar is located behind the reading desk and a bolt is inserted into the bolt hole of the quadrangular support bar, and thus a center portion of the reading desk receiving a convexly curved force by the quadrangular support bar receives a force from a protruding portion of the quadrangular support bar which acts against warpage so that the reading desk neatly maintains a flat surface.   
     
     
         2 . A reading desk deformation preventing structure, comprising:
 a reading desk; and   a long bar-shaped elliptical support bar including an elliptical protruding part configured to protrude in an elliptical shape from a center thereof, a pedestal part disposed on an edge of the elliptical protruding part, and a bolt hole disposed in each of both ends of the pedestal part, and having a center slightly curved to be concaved,   wherein the concave center portion of the elliptical support bar is located behind the reading desk a bolt is inserted into and connected to the bolt hole of the elliptical support bar, and thus a center portion of the reading desk configured to receive a convexly curved force by the elliptical support bar receives a force from a protruding portion of the elliptical support bar which acts against warpage so that the reading desk neatly maintains a flat surface.   
     
     
         3 . A reading desk deformation preventing structure, comprising:
 a reading desk; and   a long bar-shaped support bar in a   shape including a reading desk lower pedestal part configured to support a lower surface of the reading desk, a reading desk back lower pedestal part configured to support a back surface of the reading desk, and a bolt hole disposed in each of both ends of the reading desk back lower pedestal part, and having a center slightly curved to be concaved, wherein the concave center portion of the  -shaped support bar is located behind the reading desk, the reading desk lower pedestal part and the reading desk back lower pedestal part support a lower end and the back surface of the reading desk, and a bolt is inserted into the bolt hole of the  -shaped support bar, and thus the center portion of the reading desk configured to receive a convexly curved force by the  -shaped support bar receives a force from a protruding portion of the  -shaped support bar which acts against warpage so that the reading desk neatly maintains a flat surface.   
     
     
         4 . A reading desk deformation preventing structure, comprising:
 a reading desk; and   a long bar-shaped quadrangular bar including two spring accommodation parts disposed in a center of a back surface thereof and a bolt hole disposed in each of both ends thereof, and having a center slightly curved to be concaved,   wherein the concave center portion of the quadrangular support bar is located behind the reading desk, springs are located at the spring accommodation parts, and a bolt is inserted into and connected to the bolt hole of the quadrangular support bar, and thus the center portion of the reading desk configured to receive a convexly curved force by the quadrangular support bar receives a force from a protruding portion of the quadrangular support bar which acts against warpage so that the reading desk neatly maintains a flat surface.   
     
     
         5 . A reading desk deformation preventing structure, wherein a quadrangular support bar is supported by a second fixing body of a reading desk behind the reading desk, quadrangular support bar accommodation grooves are each formed in a quadrangular shape in a back end side surface which is a back end surface of the second fixing body, the back end side surface as a supporter coupling member is coupled to a back lower end of the reading desk in a state in which both lateral ends of the quadrangular support bar are inserted into the quadrangular support bar accommodation grooves, and thus the center portion of the reading desk configured to receive a convexly curved force by the quadrangular support bar receives a force from a protruding portion of the quadrangular support bar which acts against warpage so that the reading desk neatly maintains a flat surface. 
     
     
         6 . The reading desk deformation preventing structure of  claim 1 , wherein, a portion in which the reading desk is practically curved is a center portion which is roughly a half of the reading desk, and thus a size ratio between the reading desk and the support bar is 4:3, which is a size ratio of the support bar which covers the above. 
     
     
         7 . The reading desk deformation preventing structure of  claim 1 , wherein:
 a pedestal is coupled by the supporter coupling member at a lower portion of the reading desk;   an insertion hole is formed in each of inclined portions of ends of both edges of the pedestal part into which a fitting part formed at an end of a pressing body is inserted;   a first fixing body is formed, the first fixing body including a first coupling part configured to protrude in a cylindrical shape coupled to the pedestal, a first pressing body fixing hole formed as a round groove at the outside, a protruding part formed as a quadrangular partition at a predetermined interval with respect to a second coupling part, and a first connection part including the protruding part on a surface thereof, wherein first connection part and a first supporting part are formed to be connected to each other in a   shape;   a pair of supporter coupling members is configured, the pair of supporter coupling members including a second fixing body including a second supporting part formed to have the same thickness as the reading desk and having a partition configured to surround a lower portion of an edge of the reading desk and a second connection part including a  -shaped coupling hole, wherein the second supporting part and the second connection part are formed to be connected to each other in an L shape;   the first coupling part of the first fixing body of the supporter coupling member is inserted into the insertion hole of the pedestal;   the second coupling part of the first fixing body is inserted into the coupling hole of the second fixing body; and   the fitting part of the pressing body is inserted into the insertion hole of the pedestal.   
     
     
         8 . The reading desk deformation preventing structure of  claim 7 , comprising a second pressing body fixing hole located at a center portion of the first pressing body fixing hole and formed through the first coupling part and a groove formed in an end of the first fixing body in a U shape to correspond to a shape of a supporting hole of the pedestal.