Forklift cabin door and window frame to be mounted without drilling operation

A forklift cabin door and window frame to be mounted without drilling operation, which are used for mounting a door (20) on a cabin frame (10) of a forklift wherein the cabin frame includes an entryway formed at each of left and right sides of the forklift and composed of a hollow polygonal pipe (11) having a front side, a rear side and an upper end integrally connected together, and wherein electric wirings are embedded in the pipe (11), the forklift cabin door and window frame comprising:

• a door mounting bar (100) which is in close contact with an outer surface of a rear pipe (11b) at each of left and right sides of the cabin frame (10), and includes a hook part (110) formed on a top end thereof to be caught on an upper pipe (11a), as well as a coupling part (120) disposed at the rear of the rear pipe (11b);
• a rear window frame (200) consisting of a square frame, which is mounted between both left and right rear pipes (11a) at a rear of the cabin frame (10), and includes an engagement coupling part (210) formed at each of left and right sides of the rear window frame in order to be coupled to the coupling part (120) of the door mounting bar (100) by bolt fastening;
• a coupling bracket (300) that connects the door mounting bar (100) and the rear window frame (200), which are coupled in close contact with the outer surface of the rear pipe (11b), at an inside of the cabin frame (10) simultaneously, in order to prevent the same from being separated from the rear pipe (11b);
• and
• a door (20) mounted on the door mounting bar (100) to be opened/closed by a hinge (21),
• wherein a hinge bracket (130) is provided at each of top and bottom ends of the outer surface of the door mounting bar (100), which has a predetermined thickness and is integrally formed with a thread (131) in order to ensure a thread thickness at bolt fastening for assembly of the hinge (21) to open/close the door (20).