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Transmission device for land vehicle, such as a cart

  • US 20050202926A1
  • Filed: 05/13/2003
  • Published: 09/15/2005
  • Est. Priority Date: 05/23/2002
  • Status: Active Grant
First Claim
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1. An automatic transmission device, particularly for land vehicles, comprising:

  • a rotational input element (3) and a rotational output element (4);

    a first (5) and a second (6) toothed element that each mesh with a third toothed element (7);

    first (11) and second (12) coupling means to selectively couple a first one of the rotational input and output elements with the first (5) and second (6) toothed elements respectively;

    a third coupling means (74, 76) to selectively couple the second (4) of the two rotational input and output elements with the third toothed element (7);

    first (8) and second (9) stopping means to selectively immobilise the first (5) and second (6) toothed elements respectively;

    a first actuator (111) for the first coupling means (11); and

    a second actuator (62) capable of a first position in which the first coupling means (11) is capable of an engaged state and a disengaged state, and the second coupling means (12) is disengaged, and a second position in which the first coupling means (11) is disengaged and the second coupling means (12) is in an engaged state.

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