Construction equipment cab having protective structure

1. A construction equipment cab having a protective structure, the construction equipment cab being mounted on an upper swivel body, the protective structure being mounted on the cab and the upper swivel body so as to protect an operator from the cab in a rollover accident, the construction equipment cab comprising:

a lower panel provided at a rear lower portion of the cab to be sunk in a forward direction in order to secure a space in which the protective structure is held; and

means for fixing the protective structure held in the space to the upper swivel body and the cab;

wherein the fixing means comprises:

first fixing members for fixing a lower end of the protective structure to the upper swivel body;

a pair of hooks vertically fixed to a rear outer face of the cab to be opposite to each other, and each having a coupling hole formed in a horizontal direction;

brackets vertically installed on upper ends of the protective structure to support the hooks on left and right sides of the cab; and

second fixing members coupled to the coupling holes horizontally formed in the hooks and the brackets to fix the protective structure to the cab.

2. The construction equipment cab of claim 1 , wherein the lower panel is inclined upwardly toward the rear of the cab at an upper portion thereof.