Patent ID: 11919432
Assignee: VOLVO CONSTRUCTION EQUIPMENT AB
Field: Transport (Mechanical engineering)
Classification: CPC B  E | IPC B  E

Claim 0:
1. A trailer unit for use with a towing vehicle for transporting a tracked constructional machine having a left track frame and a right track frame, said trailer unit comprising:
a pair of wheeled carriages, the pair of wheeled carriages includes a left wheeled carriage adapted to be detachably connected to the left track frame through a left connecting mechanism; and
a right wheeled carriages, adapted to be detachably connected to the right track frame, through a right connecting mechanism;
a drawbar having a first end adapted to be detachably connected to a rear frame of the towing vehicle and a second end adapted to be detachably connected to a bottom frame of the tracked constructional machine through a second connecting mechanism;
wherein the left connecting mechanism comprises
a left locking plate pivotally connected to the left wheeled carriage and movable between an unlocking position, in which the left locking plate passes through an aperture formed in the left track frame, and a locking position, in which the left locking plate cannot pass through said aperture;
wherein the right connecting mechanism comprises
a right locking plate pivotally connected to the right wheeled carriage, said right locking plate being movable between an unlocking position, in which the right locking plate passes through an aperture formed in right track frame, and a locking position, in which the right locking plate cannot pass through said aperture.