Patent ID: 8387759

Claim:
A blocking mechanism for the rotationally fixed locking of a shaft, comprising: a pawl that is pivotable about a pivot axis; a ratchet wheel connected to the shaft having at least one latch cut-out disposed proximate the pawl such that the pawl, in a blocked position, engages the at least one latch cut-out of the ratchet wheel connected to the shaft; and an actuating mechanism including an actuation device for moving an actuation slider, wherein the pawl is pivotable by a movement of the actuation slider; the actuation slider includes a first U-shaped component and a second U-shaped component which each have two side sections and a transverse section connecting the side sections; and the first U-shaped component and the second U-shaped component are plugged into one another in opposing directions such that the transverse section of the first U-shaped component at least partly closes an open end of the second U-shaped component.