Mobile Device

Abstract

Mobile apparatus, comprising a main frame ( 202 ) displaceable on displacing means; a sub-frame ( 203 ) which is rotatable around a vertical axis and which is mounted on the main frame and provided with a control unit; at least one operating arm ( 210 ) mounted on the sub-frame and an automatically movable lifting device provided on the main frame, which lifting device is adapted to be connectable to an agricultural attachment.

1 - 21 . (canceled) 
     
     
         22 . A mobile apparatus, comprising
 a main frame displaceable on one or more displacing means;   a sub-frame which is rotatable around a vertical axis and which is mounted on said main frame; said sub-frame comprising a driver's position, and a number of steering elements;   an operating arm mounted on said sub-frame; and   an automatically movable lifting device provided on said main frame, said lifting device being adapted to be connectable to an agricultural attachment;   at least one motor for driving at least said one or more displacing means;   wherein said operating arm comprises at least a first articulation connected pivotally to said sub-frame, a second articulation connected pivotally to said first articulation, and a third articulation connected pivotally to said second articulation; such that said first, second and third articulations can be folded against each other to transform said operating arm from an articulated arm to a folded single lifting arm.   
     
     
         23 . The mobile apparatus of claim  1 , wherein said operating arm and said lifting device are positioned at opposite sides of the mobile apparatus. 
     
     
         24 . The mobile apparatus of claim  1 , wherein said mobile apparatus has a front side and a rear side in relation to a driving direction; wherein said operating arm is positioned at said front side, and said lifting device is positioned at said rear side. 
     
     
         25 . The mobile apparatus of claim  1 , wherein said mobile apparatus has a front side and a rear side in relation to a driving direction; wherein said operating arm is positioned at said rear side, and said lifting device is positioned at said front side. 
     
     
         26 . The mobile apparatus of claim  1 , wherein said operating arm is attached to the sub-frame such that, when said operating arm is transformed into said folded single lifting arm, it can be placed in a low position with the operating arm extending downward, such that a driver, when positioned in said driver's position, has an unobstructed view looking into a travelling direction. 
     
     
         27 . The mobile apparatus of claim  1 , wherein said one or more displacing means comprise forward displacing means and rearward displacing means, and wherein said operating arm extends over an axis of one of said forward displacing means and said rearward displacing means. 
     
     
         28 . The mobile apparatus of claim  1 , further comprising a number of cylinders for operating said operating arm, wherein said number of cylinders comprises a lower cylinder connected to the sub-frame by means of an adjusting device, said adjusting device being configured to descend said first articulation further downward into a lowest position of the folded single lifting arm and to move the first articulation further upward in an uppermost digging position of the operating arm. 
     
     
         29 . The mobile apparatus of claim  1 , wherein said one or more displacing means comprise two first wheels and two second wheels, and wherein said first, second and third articulations are foldable against each other between said first wheels. 
     
     
         30 . The mobile apparatus of claim  8 , wherein said sub-frame is provided with an upwardly extending section between said first wheels, and wherein said first articulation is attached to said upwardly extending section. 
     
     
         31 . The mobile apparatus as claimed in claim  1 , wherein the lifting device is a three-point lifting device. 
     
     
         32 . The mobile apparatus as claimed in claim  1 , further comprising a power takeoff on the main frame, said power takeoff being coupled to said at least one motor, for driving an attachments. 
     
     
         33 . The mobile apparatus as claimed in claim  11 , wherein the power takeoff and the lifting device are positioned at the same side of the main frame. 
     
     
         34 . Mobile apparatus as claimed in claim  1 , wherein the at least one operating arm is mounted on the sub-frame for pivoting around a horizontal axis. 
     
     
         35 . The mobile apparatus as claimed in claim  1 , wherein the at least one operating arm is mounted on the sub-frame for pivoting around a vertical axis. 
     
     
         36 . The mobile apparatus as claimed in claim  1  wherein the one or more displacing means are one of the following: wheels, caterpillar tracks, mechanical legs. 
     
     
         37 . The mobile apparatus as claimed in claim  15 , wherein the mobile apparatus is provided with a pair of rear wheels and a pair of front wheels. 
     
     
         38 . The mobile apparatus of claim  1 , wherein the mobile apparatus has a front side and rear side and a travel direction corresponding thereto, wherein the mobile apparatus further comprises a mechanism for reversing the travel direction, and hence the front side and the rear side. 
     
     
         39 . The mobile apparatus of claim  1 , further comprising a switch configured to be operated by a driver for adjusting a travel direction of the mobile apparatus. 
     
     
         40 . The mobile apparatus of claim  18 , further comprising a signal manipulator, said signal manipulator being coupled to the switch and to the steering elements for moving the mobile apparatus in the travel direction set by the driver using the switch. 
     
     
         41 . The mobile apparatus of claim  19 , further comprising a forward/reverse switch, wherein the forward/reverse switch is coupled to the signal manipulator for moving the mobile apparatus in the travel direction set by the driver using the switch, taking into account the position of the forward/reverse switch.