Device for moving at least one door leaf, vehicle provided therewith and associated method

A method for moving at least one door leaf along an opening of a transport vehicle body, between respectively closed and open positions allowing passengers to enter and exit the vehicle,

• the device including:
• a body with respect to which the leaf moves between an open and a closed position;
• a fixed beam, fixed to the body and having an axis of elongation;
• a mobile beam having an axis of elongation substantially parallel to that of the fixed beam and connected to the leaf so that the leaf slides along the mobile beam, the mobile beam is connected to the fixed beam by maneuvering rails that are fixed with respect to the fixed beam and that support the mobile beam to allow the mobile beam a movement that is transverse with respect to the axes of elongation of the fixed and mobile beam;
• a motor fixed to the mobile beam, the motor extending along one of the maneuvering rails, along an axis of rotation transverse to the axis of elongation of the fixed beam, and bears the driving cam coaxially, and arranged to drive the leaf in a movement parallel to the axis of elongation of the mobile beam and, during the maneuvering of the leaf, to drive a driving cam that is provided with a slot in which is engaged a pin fixed to the fixed beam;
• and,
• a central roller connected to the mobile beam, fixed to the leaf, and which runs in a groove of the fixed beam as the leaf moves,
• wherein a first part of the slot of the driving cam has the form of a helix with an axis transverse to the axes of elongation of the fixed and mobile beams, and
• wherein the leaf is forced to move along the opening, with maneuvering with respect to the body of the vehicle, the method comprising:
• using the motor to make a central roller fixed to the leaf run along an opening of the body in the groove of the elongate fixed beam fixed to this body,
• and, at the end of the movement of the leaf in a direction of closing or at the start of the movement in a direction of opening, imparting to the mobile beam connected to the leaf, a transverse movement with respect to the axis of elongation of the fixed beam, in the maneuvering rails that are fixed with respect to the body using the motor and the central roller the path of which imposes the transverse movement by a part of the groove of the fixed beam that extends at an angle with respect to the axis of elongation of this fixed beam.