Patent ID: 9089965
Filing Date: 2015-07-28
Classification: B25H,B65D

Abstract:
1. A tool box comprising: a first box having a space defined therein; at least two second boxes being overlapped in pairs on the first box to form at least one layer, each layer including two second boxes, the second boxes located at the lowest layer being pivotably connected to two sides of the first box by first links and first plates, the at least two second boxes, the first links and the first plates forming a parallel four-link mechanism, the second boxes of two adjacent layers being pivotably connected to each other by second links and second plates, the second boxes of the adjacent layers, the second links and the second plates forming a parallel four-link mechanism, the first link and the second link each having a first contact portion extending laterally therefrom, the first links each having a protrusion link extending from one side thereof, the first plates and the second plates each having a second contact portion extending laterally therefrom, when the second boxes being expanded relative to the first box and the second boxes of the adjacent layer, the first contact portions of the first links on the same side of the first box contacting the second contact portions of the first plates, and the first contact portions of the second links on the same side of the first box contacting the second contact portions of the second plates; two covers each being pivotably connected with the corresponding second box on the top most layer so as to cover up the second boxes on the top most layer, and at least one handle which has two ends being pivotably connected to the protrusion links of the first links on the two sides of the first box.