Tool box assembly

Abstract

A tool box assembly includes a first case, and a second case pivotally mounted on the first case. The first case and the second case respectively have the same structure. Thus, the first case and the second case have the same structure, so that the manufacturer only needs to prepare a single mold to make the tool box assembly, thereby decreasing costs of fabrication.

1 . A tool box assembly, comprising a first case, and a second case pivotally mounted on the first case, wherein: 
 the first case has a side having a first end provided with a pivot member and a second end provided with a pivot seat; and    the second case has a side having a first end provided with a pivot member pivotally mounted on the pivot seat of the first case and a second end provided with a pivot seat on which the pivot member of the first case is pivotally mounted.    
     
     
         2 . The tool box assembly in accordance with  claim 1 , wherein: 
 the pivot seat of the second case is formed on and protruded outward from the second case and has an inside formed with a clamping recess; and    the pivot member of the first case includes a protruding rib having a first end formed on and protruded outward from the first case, and a pivot shaft integrally formed on a second end of the protruding rib and pivotally mounted in the clamping recess of the pivot seat of the second case.    
     
     
         3 . The tool box assembly in accordance with  claim 2 , wherein the protruding rib of the pivot member of the first case is substantially wedge-shaped.  
     
     
         4 . The tool box assembly in accordance with  claim 2 , wherein the pivot shaft of the pivot member of the first case is parallel with the side of the first case.  
     
     
         5 . The tool box assembly in accordance with  claim 2 , wherein the protruding rib of the pivot member of the first case is located at a mediate portion of the pivot shaft.  
     
     
         6 . The tool box assembly in accordance with  claim 2 , wherein the clamping recess of the pivot seat of the second case is substantially arcuate shaped.  
     
     
         7 . The tool box assembly in accordance with  claim 2 , wherein the clamping recess of the pivot seat of the second case has an opening facing outward.  
     
     
         8 . The tool box assembly in accordance with  claim 2 , wherein the clamping recess of the pivot seat of the second case encompasses the pivot shaft of the pivot member of the first case to an extent exceeding half of a diameter of the pivot shaft of the pivot member of the first case.  
     
     
         9 . The tool box assembly in accordance with  claim 2 , wherein the pivot seat of the second case has a mediate portion formed with a cutout extended through the mediate portion of the pivot seat of the second case.  
     
     
         10 . The tool box assembly in accordance with  claim 9 , wherein the protruding rib of the pivot member of the first case is aligning with the cutout of the pivot seat of the second case.  
     
     
         11 . The tool box assembly in accordance with  claim 1 , wherein the second case has a structure the same as that of the first case.  
     
     
         12 . The tool box assembly in accordance with  claim 1 , wherein the pivot seat of the first case is formed on and protruded outward from the first case and has an inside formed with a clamping recess; and 
 the pivot member of the second case includes a protruding rib having a first end formed on and protruded outward from the second case, and a pivot shaft integrally formed on a second end of the protruding rib and pivotally mounted in the clamping recess of the pivot seat of the first case.    
     
     
         13 . The tool box assembly in accordance with  claim 12 , wherein the protruding rib of the pivot member of the second case is substantially wedge-shaped.  
     
     
         14 . The tool box assembly in accordance with  claim 12 , wherein the pivot shaft of the pivot member of the second case is parallel with the side of the second case.  
     
     
         15 . The tool box assembly in accordance with  claim 12 , wherein the protruding rib of the pivot member of the second case is located at a mediate portion of the pivot shaft.  
     
     
         16 . The tool box assembly in accordance with  claim 12 , wherein the clamping recess of the pivot seat of the first case is substantially arcuate shaped.  
     
     
         17 . The tool box assembly in accordance with  claim 12 , wherein the clamping recess of the pivot seat of the first case has an opening facing outward.  
     
     
         18 . The tool box assembly in accordance with  claim 12 , wherein the clamping recess of the pivot seat of the first case encompasses the pivot shaft of the pivot member of the second case to an extent exceeding half of a diameter of the pivot shaft of the pivot member of the second case.  
     
     
         19 . The tool box assembly in accordance with  claim 12 , wherein the pivot seat of the first case has a mediate portion formed with a cutout extended through the mediate portion of the pivot seat of the first case.  
     
     
         20 . The tool box assembly in accordance with  claim 19 , wherein the protruding rib of the pivot member of the second case is aligning with the cutout of the pivot seat of the first case.