Patent ID: 7603812

Claim:
A device for a sliding vehicle door comprising: a wire drum ( 16 ) connected to a wire cable for sliding the vehicle door ( 11 ) by winding and unwinding the wire cable when rotated; a motor ( 14 ) selectively rotating the wire drum ( 16 ) mounted on a drum shaft ( 26 ); a clutch mechanism ( 25 ) provided between the motor ( 14 ) and the wire drum ( 16 ); a first rotational member ( 85 ) mounted on a brake shaft ( 79 ) simultaneously rotated with the wire drum ( 16 ); wherein said drum shaft ( 26 ) and said brake shaft ( 79 ) are spaced apart from and are parallel to each other; a first detector ( 86 ) for detecting rotation of the first rotational member ( 85 ); a housing ( 74 ); wherein said housing ( 74 ) has a first space ( 76 ) accommodating the wire drum ( 16 ) and communicating with the outside of the housing ( 74 ) and a second space ( 78 ) accommodating the first rotational member ( 85 ) and the first detector ( 86 ); wherein an interior wall ( 73 ) of the housing disposed between the first space ( 76 ) and the second space ( 78 ) substantially entirely separates the first space from the second space, and an auxiliary brake ( 17 ) selectively applying brake resistance to the wire drum ( 16 ), wherein said auxiliary brake ( 17 ) is mounted on the brake shaft ( 79 ) outside of the second space and the brake shaft rotates simultaneously with the wire drum ( 16 ), wherein one end of the brake shaft projects into the interior of the second space ( 78 ), and the first rotational member ( 85 ) is fixed to the one end of the brake shaft in the second space; wherein said housing has a third space separated from the first space by a partition wall of the housing, communicates with the first space only through a port through the partition wall, wherein said auxiliary brake is accommodated in the third space and wherein said wire drum and said brake shaft are connected with each other by way of transmitting means passing through the port.