Powertrain mechanism for vehicles with internal combustion engine

A powertrain mechanism (1) comprising a carrier plate (10) connected to the crankshaft, a drive plate (50) connected to the gearbox shaft and at least one spring (33) positioned between at least one first spring housing (12) provided on the carrier plate (10) and at least one spring housing (55) provided on the drive plate (50), in order to transfer the torque, obtained from the crankshaft, to the gearbox shaft in vehicles having internal combustion engine, characterized by comprising at least one inertia plate (30) having an internal opening (301) and connected to the side of the carrier plate (10) where the drive plate (50) is provided, and

• at least one recess (311) provided on the inner wall (31) of said inertia plate (30) and correspondingly, at least one drive tab (511) provided on the outer wall (51) of the drive plate (50) and
• further wherein during transfer of the rotational movement of the carrier plate (10) to the drive plate (50), said drive tab (511) realizes rotational movement in the recess (311) and the drive tab (511) halts at the stop point (312) inside the recess (311) at the end of predetermined amount of compression of the springs (33) provided between the drive plate (50) and the carrier plate (10).