A vehicle includes a vehicle body having a door frame defining a door aperture, a vehicle door, a rail mounted on the vehicle body, a roller unit mounted on the vehicle door and configured to move along the rail and allow the vehicle door to open and close in a sliding mode and a swing mode, a center rail extending from an edge of the door aperture, and a center roller unit including rollers configured to be guided along the center rail, a roller bracket having the rollers mounted thereon, a roller-side hinge element connected to the roller bracket, and a door-side hinge element rotatably connected to the roller-side hinge element, wherein the roller-side hinge element and the door-side hinge element are releasably connected.

A vehicle door opening and closing apparatus includes a rail mounted on a vehicle body, a roller unit mounted on a vehicle door, the vehicle door having a main latch releasably engaged with a main striker mounted on the vehicle body, the roller unit configured to allow the vehicle door to open and close in a sliding mode and a swing mode, and an outside handle operatively connected to the main latch, and including a handle base mounted on the vehicle door and a handle grip movably mounted on the handle base, wherein the handle grip is slidable in a longitudinal direction of the vehicle body, and pivotal in a transverse direction of the vehicle body, and wherein as the handle grip slides, the sliding mode is selected, and as the handle grip pivots, the swing mode is selected.

A door assembly may include a first sidelite configured to be operably coupled to a first doorjamb, a second sidelite configured to be operably coupled to a second door jamb where the first and second sidelites are disposed in a common plane and define a door opening between the first and second sidelites, a first sliding panel, a second sliding panel where the first and second sliding panels are movable from a closed position disposing the first and second sliding panels to block access through the door opening and an open position in which the first sliding panel is proximate the first sidelite and the second sliding panel is proximate the second sidelite, a first partial door panel, and a second partial door panel. The first and second sliding panels are disposed in a second plane parallel to the common plane in both the open and closed position. The first and second partial door panels are operably coupled to the first and second sidelites, respectively, via hinge assemblies. The first and second partial door panels have a closed state in which the first and second partial door panels are each disposed in the common plane blocking access through the door opening, and an open state in which the first and second partial door panels are each disposed out of the common plane.

An embodiment is a vehicle door opening and closing apparatus. The vehicle door opening and closing apparatus including a vehicle door, a rail mounted on a vehicle body, a roller unit mounted on the vehicle door, the roller unit configured to move along the rail and allow the vehicle door to open and close in a mode selected from a swing mode and a sliding mode, and a hold lock mounted on the vehicle body, the hold lock including a passing rod configured to releasably hold the roller unit in a predetermined position.

An embodiment is a vehicle door opening and closing apparatus. The vehicle door opening and closing apparatus including a vehicle door, a rail mounted on a vehicle body, a roller unit mounted on the vehicle door, the roller unit configured to move along the rail and allow the vehicle door to open and close in a mode selected from a swing mode and a sliding mode, and a hold lock mounted on the vehicle body, the hold lock including a passing rod configured to releasably hold the roller unit in a predetermined position.

An embodiment is a vehicle door opening and closing apparatus including a vehicle door configured to be selectively opened and closed in a mode of a sliding mode and a swing mode to uncover and cover a door opening of a vehicle body. The vehicle door opening and closing apparatus further including a rail mounted on the vehicle body, a roller unit including a roller and a hinge element, the roller being configured to be guided along the rail, the hinge element being spaced apart from the roller, a door-side bracket mounted on the vehicle door, the door-side bracket being detachably connected to the roller unit, and a body-side bracket mounted on the vehicle body, the body-side bracket being detachably connected to the roller unit.

A door assembly may include a first sidelite configured to be operably coupled to a first door jamb, a second sidelite configured to be operably coupled to a second door jamb where the first and second sidelites are disposed in a common plane and define a door opening between the first and second sidelites, a first sliding panel, a second sliding panel where the first and second sliding panels are movable from a closed position disposing the first and second sliding panels to block access through the door opening and an open position in which the first sliding panel is proximate the first sidelite and the second sliding panel is proximate the second sidelite, a first partial door panel, and a second partial door panel. The first and second sliding panels are disposed in a second plane parallel to the common plane in both the open and closed position. The first and second partial door panels are operably coupled to the first and second sidelites, respectively, via hinge assemblies. The first and second partial door panels have a closed state in which the first and second partial door panels are each disposed in the common plane blocking access through the door opening, and an open state in which the first and second partial door panels are each disposed out of the common plane.

An embodiment vehicle door opening structure includes a first door unit positioned at a side of a vehicle and including a first door, a second door unit including a second door positioned adjacent to the first door, a locking device configured to selectively lock the first door unit and the second door unit together, and a controller configured to fix the locking device so that the first door unit and the second door unit are configured to be opened together or to release the locking device so that the first door unit and the second door unit are configured to be opened independently.

An embodiment vehicle door opening structure includes a first door unit positioned at a side of a vehicle and including a first door, a second door unit including a second door positioned adjacent to the first door, a locking device configured to selectively lock the first door unit and the second door unit together, and a controller configured to fix the locking device so that the first door unit and the second door unit are configured to be opened together or to release the locking device so that the first door unit and the second door unit are configured to be opened independently.

A swing gate mechanism to swing open an overhead lift gate system includes an overhead swing gate. The overhead swing gate has a pivot side and a catch side. A first gate power arm is configured to move along a first overhead guide track on a first side of the overhead lift gate system. A second gate power arm is configured to move along a second overhead guide track on a second side of the overhead lift gate system. At least one hinge is connected between the pivot side of the overhead swing gate and the first gate power arm. The at least one hinge is configured to allow the overhead swing gate to swing open by rotating about the first gate power arm.