| 摘要 |
A self-opening toolbox includes a first shell, a second shell pivotally mounted on the first shell, a retainer mounted on the first shell for retaining a tool kit in position and a pivot arranged between the first shell and the second shell for pivoting the second shell with respect to the first shell. The pivot includes a first cylinder connected with the first shell, a second cylinder connected with the second shell and a torque element connected between the first and second cylinders. The torque element is received in the first cylinder and the first cylinder is received in the second cylinder. The first cylinder includes a closed end and a clip formed on an internal side of the closed end for clamping an end of the torque element. The second cylinder includes a closed end and a clip formed on an internal side of the closed end for clamping an end of the torque element.
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