Device for opening and closing a sliding door and method for assembling the same

摘要

A rail unit includes a lower rail, which guides the movement of a guide member connected to a sliding door, a front bracket, which is provided on the lower rail and fixed to a vehicle body, a rear bracket, and a center bracket. The rail unit is inserted into a first insertion hole, which is located below a lower panel provided on the vehicle body at a position below a door opening and opens outward in the vehicle body in the lateral direction of the vehicle. A drive unit is inserted into a second insertion hole, which is formed in the lower panel and opens upward in the vehicle. The drive unit is layered on an upper side of a drive pulley provided in the center bracket to rotate the drive pulley.

主权项

1. A sliding door opening and closing device for driving a sliding door to open and close a door opening formed in a lateral side of a vehicle body, the device comprising:
a rail unit configured to be attached to the vehicle body; and a drive unit attached to the rail unit, wherein the rail unit includes: a rail portion, which guides movement of a guide member connected to the sliding door, an attaching portion, which is provided in the rail portion and is adapted to be fixed to the vehicle body, a drive rotary body and a plurality of driven rotary bodies arranged in the attaching portion, and a rope member, which is wrapped around the drive rotary body and the driven rotary bodies to be fixed to the guide member, wherein the rail unit is adapted to be inserted into a first insertion hole, which is formed in the vehicle body and opens outward in a lateral direction of the vehicle and is located below a lower panel provided in the vehicle body below the door opening, and the drive unit is adapted to be inserted into a second insertion hole, which is formed in the lower panel of the vehicle body and opens upward in the vehicle, and the drive unit is layered on an upper side of the drive rotary body to rotate the drive rotary body.