Patent ID: 11919731
Assignee: nan
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A blocking device for a truck, comprising:
a height-adjustable blocking arm for installation in a shaft in a base in front of a ramp of a loading and unloading station,
wherein the at least one blocking arm is extendable from the shaft and includes a telescopable plunger, wherein a section of the blocking arm including the plunger is movable and pivotable until the telescopable plunger is oriented obliquely upward and against the direction of travel of the truck and until the telescopable plunger contacts the underride guard when the truck is located on the base adjacent the ramp, the plunger including a pressure switch which initiates a signal when the plunger is not in contact with the underride guard, the signal causing the plunger to be adjusted in order to contact the underride guard and fix the truck underride guard between the plunger of the at least one blocking arm and the ramp, and thus prevent a rolling-away or driving-away of the truck.