Letter tray kit

Abstract

A letter tray kit is disclosed to include two trays and an accessory set. The trays respectively include a floor panel for lodging papers, two side walls respectively positioned at a left side and a right side of the floor panel, and at least one connection portion at each of the side wall. The accessory set includes at least two supporting members, each of which is coupled with the connection portions of the trays respectively at a top side and a bottom side thereof so as to set one tray vertically apart from the other tray at a predetermined height. Each of the trays is provided with a plurality of retaining grooves at a bottom side thereof for detachably embedding the supporting members.

What is claimed is:  
     
         1 . A letter tray kit comprising: 
 at least two trays, wherein each of said trays includes a floor panel provided at a bottom side thereof with a plurality of retaining grooves, and two side walls disposed at a left side and a right side of said floor panel respectively and having at least one connection portion respectively; and    at least one accessory set, wherein said accessory set includes at least two supporting members that are either detachably embedded into said retaining grooves of said tray or mounted between two said trays to vertically space said trays at a predetermined height by means of each of said supporting members is coupled with said connection portions of two said trays at a top end and a bottom end thereof respectively.    
     
     
         2 . The letter tray kit as defined in  claim 1 , wherein said accessory set comprises at least four said supporting members which are rod-like; wherein each of said side walls is provided with one said connection portion respectively at a front end and a rear end thereof, said connection portion having an upper stacking socket and a lower stacking socket corresponding in location to said upper stacking socket, said upper stacking socket extending downward from a top side of said side wall, said lower stacking socket extending upward from a bottom side of said side wall and not communicating with said upper stacking socket; wherein while said accessory set mounted between said two trays, each of said supporting members has the bottom end inserted into said upper stacking socket of one of said two trays and the top end inserted into said lower stacking socket of the other said tray; wherein each of said retaining grooves is elongated for embedding one of said supporting members.  
     
     
         3 . The letter tray kit as defined in  claim 2 , wherein each of said retaining grooves is respectively provided with at least one mounting ledge at two elongated sides of an opening thereof, whereby said supporting members embedded into said retaining grooves are not subject to accidentally fall; wherein while each of said supporting members is embedded into one of said retaining groove, the two ends of said supporting member and two ends of said retaining groove are provided with a spacing therebetween.  
     
     
         4 . The letter tray kit as defined in  claim 1 , wherein said accessory set is less in numbers than said trays by one; wherein said retaining grooves are identical to said supporting members in numbers; wherein said supporting members are respectively embedded into one of said retaining groove.  
     
     
         5 . The letter tray kit as defined in  claim 1 , wherein said accessory sets are as twice as many as said trays minus one and comprises said supporting members having two different sizes identical to each other in numbers for setting one of said trays vertically apart from the other at a predetermined height; wherein said retaining grooves are twice as many as said supporting members of each said accessory set and are provided with two different sizes identical to each other in numbers for embedding said supporting members having two different sizes.  
     
     
         6 . The letter tray kit as defined in  claim 1 , wherein each said tray is provided with at least one first matching portion at a top side of each said side wall and at least one second matching portion at a bottom side of each side wall; wherein each said tray can be vertically tightly stacked upon the other said tray by engaging said first matching portion with said second matching portion.