A sliding door structure includes a door body, a vehicle body rail, a vehicle body rail support member, a door rail, and a door rail support member. The vehicle body rail support member includes a vehicle body-side end portion coupled to the vehicle body rail and capable of moving along the vehicle body rail, and a door-side end portion coupled to the door body. The vehicle body rail support member is capable of rotating about the vehicle body-side end portion, and of rotating about the door-side end portion. The door rail support member is configured to include a door-side end portion coupled to the door rail and capable of moving along the door rail, and a vehicle body-side end portion coupled to the vehicle body. The door rail support member is capable of rotating about the door-side end portion, and of rotating about the vehicle body-side end portion.

A sliding door assembly includes a link arm connected to a support surface, a track guide carried on the link arm and a door body including a track that slides over the track guide. A related method of operating the sliding door assembly is also disclosed.

This disclosure relates to a motor vehicle with an arrangement configured to oppose movement of a vehicle door, and a corresponding method. An example motor vehicle includes a body, a door configured to slide relative to the body between an open position and a closed position, and a bracket connected to the door. The bracket includes a slot. Further, a locking arm is mounted to the body, and, when the door is in the closed position, the locking arm is configured to move such that the locking arm is received in the slot.

A vehicle door check mechanism includes a strap body mounted on a portion of a vehicle door adjacent to a rotation axis of the vehicle door, and configured to move with the vehicle door as the vehicle door swings around the rotation axis, and a hold unit configured to allow the strap body to be held at regular intervals, wherein the strap body is curved to have a predetermined curvature radius. A center of the curvature radius is located on the rotation axis of the vehicle door, and the strap body has a fixed end which is fixed to the vehicle door, and a free end which is spaced apart from the vehicle door.

A sliding door system for a vehicle includes a door frame defining a door opening and a sliding door covering at least a portion of the door opening in a closed position. An upper door slide assembly and a lower door slide assembly collectively interconnect the sliding door to the door frame and each are configured to slide the sliding door relative to the door frame from the closed position to an open position to dispose the sliding door either forward or rearward of the door opening. The lower door slide assembly includes a lower track extending along the sliding door and a lower hinge assembly pivotably connected to the door frame and slideably mated with the lower track for effectuating pivoting and sliding movement of the sliding door between the open and closed positions.

An opening and closing structure of a sliding door for a vehicle includes: a sliding door disposed on a side surface of the vehicle and configured to be slidably open and closed in a longitudinal direction of the vehicle; at least one rail arranged in a longitudinal direction of the vehicle on one of a vehicle body of the vehicle and the sliding door; at least one roller arranged on the other one of the vehicle body and the sliding door, the at least one roller configured to slide while being fitted in the at least one rail; and a sliding unit disposed on a side of the vehicle body or the sliding door on which the at least one roller is arranged, the sliding unit configured to slide the at least one roller in a direction in which the sliding door slides. The at least one roller is configured to slide with respect to the vehicle body and the sliding door.

The handrail for getting on and off includes a rail portion for slidably holding one end portion of the link arm which expands and contracts with the movement of the slide door, and a handrail body configured to rotate integrally with the rail portion. When the slide door closes the entrance, the entrance handrail takes a retracted posture in which one end portion of the link arm is located at the other end portion of the rail part and the handrail body is arranged along the slide door. When the slide door opens the entrance, the entrance handrail takes a deployed posture in which one end portion of the link arm is positioned on one end portion side of the rail portion so that the rail portion and the handrail body protrude toward the outside of the vehicle.

A sliding door device for a vehicle includes a door panel for opening and closing a door opening and covered by an upper trim and a lower trim, and a center rail mounted on the door panel to extend in a longitudinal direction of the vehicle body and providing a path for a center roller mounted on a center portion of the vehicle body, wherein a lower portion of the upper trim and an upper portion of the lower trim are disposed to overlap each other vertically. The center roller is mounted on a center roller mounting bracket including a first surface extending toward the vehicle body to be vertical to the door panel, a second surface bent from the first surface toward a lower side of the vehicle body, and a third surface extending from the second surface toward the vehicle body to be vertical to the door panel.

A sliding door assembly includes a link arm connected to a support surface, a track guide carried on the link arm and a door body including a track that slides over the track guide. A related method of operating a sliding door assembly is also disclosed.

A sliding door structure includes a door body, a vehicle body rail, a vehicle body rail support member, a door rail, and a door rail support member. The vehicle body rail support member includes a vehicle body-side end portion coupled to the vehicle body rail and capable of moving along the vehicle body rail, and a door-side end portion coupled to the door body. The vehicle body rail support member is capable of rotating about the vehicle body-side end portion, and of rotating about the door-side end portion. The door rail support member is configured to include a door-side end portion coupled to the door rail and capable of moving along the door rail, and a vehicle body-side end portion coupled to the vehicle body. The door rail support member is capable of rotating about the door-side end portion, and of rotating about the vehicle body-side end portion.