Cardan Joint

Abstract

Disclosed is a toy fork pin ( 6 ) for assembly into a cardan joint ( 2 ), comprising: a torque transmission piece ( 10 ) for receiving or transmitting a torque ( 12 ) about an insertion direction ( 8 ), a wall-shaped carrier piece ( 22 ) arranged on the torque transmission piece ( 10 ) and extending in the insertion direction ( 8 ) as well as in a nodding direction ( 20 ) transverse to the insertion direction ( 8 ), and a ball element ( 32 ) mounted, in the insertion direction ( 8 ), opposite the torque transmission piece ( 10 ) on the wall-shaped carrier piece ( 22 ), characterized in that at least one wall-shaped joint needle piece ( 34 ) is held on the ball element ( 32 ), which extends in the insertion direction ( 8 ) and in a yawing direction ( 18 ) extending transverse to the insertion direction ( 8 ) and transverse to the nodding direction ( 20 ).

1 . Toy fork pin ( 6 ) for assembly into a cardan joint ( 2 ), comprising:
 a torque transmission piece ( 10 ) for receiving or transmitting a torque ( 12 ) about an insertion direction ( 8 ),   a wall-shaped carrier piece ( 22 ) arranged on the torque transmission piece ( 10 ) and extending in the insertion direction ( 8 ) as well as in a nodding direction ( 20 ) transverse to the insertion direction ( 8 ), and   a ball element ( 32 ) mounted, in the insertion direction ( 8 ), opposite the torque transmission piece ( 10 ) on the wall-shaped carrier piece ( 22 ),   characterized in that   at least one wall-shaped joint needle piece ( 34 ) is held on the ball element ( 32 ), which extends in the insertion direction ( 8 ) and in a yawing direction ( 18 ) extending transverse to the insertion direction ( 8 ) and transverse to the nodding direction ( 20 ).   
     
     
         2 . Toy fork pin ( 6 ) according to  claim 1 , wherein the wall-shaped carrier piece ( 22 ) comprises a post ( 24 ), from which one wall element ( 26 ) each projects in and counter to the nodding direction ( 20 ). 
     
     
         3 . Toy fork pin ( 6 ) according to  claim 2 , wherein the post ( 24 ) tapers conically in the insertion direction ( 8 ). 
     
     
         4 . Toy fork pin ( 6 ) according to  claim 2 , wherein the post ( 24 ) is coaxially held on a socket ( 27 ) formed on the torque transmission piece ( 10 ), which tapers conically towards the ball element ( 32 ). 
     
     
         5 . Toy fork pin ( 6 ) according to  claim 2 , wherein the sides ( 28 ) of the wall elements ( 26 ), as viewed in and counter to the nodding direction ( 20 ) are formed to converge towards each other in the direction of the ball element ( 32 ). 
     
     
         6 . Toy fork pin ( 6 ) according to  claim 1 , wherein the ball element ( 32 ), as viewed in the nodding direction ( 20 ), is formed with a smaller maximum extension than a minimum extension of the wall-shaped carrier piece ( 22 ). 
     
     
         7 . Toy fork pin ( 6 ) according to  claim 1 , wherein the joint needle piece ( 34 ), as viewed in the yawing direction ( 18 ), has a trapezoidal, preferably rhombic, cross-section, wherein a main diagonal of the trapezoidal cross-section is aligned in the insertion direction ( 8 ). 
     
     
         8 . Toy fork pin according to  claim 1 , which is rotationally symmetrical about a rotation axis ( 16 ) aligned in the insertion direction ( 8 ), with a rotational symmetry angle of 180°. 
     
     
         9 . Toy fork receptacle ( 4 ) for receiving a toy fork pin ( 6 ) according to  claim 1 , comprising:
 a torque transmission piece ( 10 ) for receiving or transmitting a torque ( 12 ) about an insertion direction ( 8 ),   a receiving piece ( 38 ) arranged on the torque transmission piece ( 10 ) and rising cylindrically in the insertion direction ( 8 ), with a receiving opening ( 40 ) formed, in the insertion direction ( 8 ), opposite the torque transmission piece ( 10 ), into which the ball element ( 32 ) can be inserted into a receiving space ( 42 ),   wherein slots ( 44 ,  46 ) for receiving the wall-shaped carrier piece ( 22 ) and the joint needle piece ( 34 ) are formed in the walls of the receiving space ( 42 ), as viewed in the nodding direction ( 20 ) and in the yawing direction ( 18 ).   
     
     
         10 . Cardan joint ( 2 ), comprising:
 a toy fork pin ( 6 ) according to  claim 1 , and   a toy fork receptacle ( 4 ) comprising:
 a torque transmission piece ( 10 ) for receiving or transmitting a torque ( 12 ) about an insertion direction ( 8 ), 
 a receiving piece ( 38 ) arranged on the torque transmission piece ( 10 ) and rising cylindrically in the insertion direction ( 8 ), with a receiving opening ( 40 ) formed, in the insertion direction ( 8 ), opposite the torque transmission piece ( 10 ), into which the ball element ( 32 ) can be inserted into a receiving space ( 42 ), 
   wherein slots ( 44 ,  46 ) for receiving the wall-shaped carrier piece ( 22 ) and the joint needle piece ( 34 ) are formed in the walls of the receiving space ( 42 ), as viewed in the nodding direction ( 20 ) and in the yawing direction ( 18 ),   wherein the ball element ( 32 ) of the toy fork pin ( 6 ) is inserted into the receiving space ( 42 ) of the toy fork receptacle ( 4 ).