Backplate for shelf rack

Abstract

A backplate is directly hooked at two outmost ends to two opposite inner vertical metal bars on two rear posts of a shelf rack, so that things may be safely positioned on the rack against the backplate. The backplate includes a long and narrow transverse plate, a fixed mounting bracket fixedly connected to each lateral end of the transverse plate, and a movable mounting bracket pivotally and sideward movably connected to the fixed mounting bracket. The movable mounting bracket has a hooking recess provided at an outer end for engaging with one of the two opposite inner vertical metal bars, and a second elastic retaining head forward protruded from a middle portion for tightly pressing against an inner side of a rearward protruded first elastic retaining head formed at an outer end of the fixing mounting bracket to thereby fasten the fixed and the movable mounting brackets to one another.

1 . A backplate for shelf rack, said shelf rack including at least two side supports having a rear post each, and each of said rear posts being formed from at least two vertical metal bars parallelly arranged side by side; said backplate comprising:
 a transverse plate being a long and narrow member to constitute a major part of said backplate;   a fixed mounting bracket fixedly connected to each lateral end of said transverse plate; and said fixed mounting bracket being formed at an outer end with a rearward protruded first elastic retaining head; and   a movable mounting bracket having an inner end pivotally connected to and sidewardly movable relative to each of said fixed mounting brackets; and each of said movable mounting brackets being formed at an outer end with a hooking recess for engaging with an inner one of said two parallel vertical metal bars forming one said rear post, and near a middle portion with a forward protruded second elastic retaining head;   whereby when said two movable mounting brackets have been connected at said hooking recesses to two opposite inner vertical metal bars on two rear posts of said shelf rack and said transverse plate is moved rearward, said fixed mounting brackets are approached to and finally fastened to said movable mounting brackets with said second elastic retaining heads tightly pressing against inner sides of said first elastic retaining heads to firmly hold the movable mounting brackets to said fixed mounting brackets.   
   
   
       2 . The backplate for shelf rack as claimed in  claim 1 , wherein each of said fixed mounting brackets has a guide way formed thereon to extend by a predetermined distance in both vertical and transverse directions; and each of said movable mounting brackets being pivotally connected to and sidewardly movable relative to said fixed mounting bracket by vertically inserting a pivot pin in said guide way with upper and lower ends of said pivot pin fixedly connected to said inner end of said movable mounting bracket. 
   
   
       3 . The backplate for shelf rack as claimed in  claim 1 , wherein said first and said second elastic retaining head are tightly pressed against each other at a position located in front of a line extended between said pivot pin and said hooking recess of said movable mounting bracket. 
   
   
       4 . The backplate for shelf rack as claimed in  claim 1 , wherein said first elastic retaining head on said fixed mounting bracket is formed by rolling a sheet metal, and has a curved contact surface with said second elastic retaining head. 
   
   
       5 . The backplate for shelf rack as claimed in  claim 1 , wherein said second elastic retaining head on said movable mounting bracket is formed by rolling a sheet metal, and has a curved contact surface with said first elastic retaining head. 
   
   
       6 . The backplate for shelf rack as claimed in  claim 1 , wherein said two movable mounting brackets of said backplate having been mounted to said shelf rack exert a force to tightly pull said two opposite inner vertical metal bars toward each other. 
   
   
       7 . The backplate for shelf rack as claimed in  claim 1 , wherein said hooking recesses on said two movable mounting brackets are rearward opened. 
   
   
       8 . The backplate for shelf rack as claimed in  claim 1 , wherein said transverse plate is a flat board. 
   
   
       9 . The backplate for shelf rack as claimed in  claim 1 , wherein said transverse plate is a metal grid welded from a plurality of intersected metal bars.