A device for operating opposite sliding doors of a vehicle includes a center rail mounted at a center inside a door and formed in a curved shape so that the door moves to the outside of a vehicle interior of the vehicle when the door is opened. A center roller is mounted on the vehicle body so as to correspond to the center rail. The center roller is configured to move the center rail by being coupled to the center rail when the door is opened or closed as a center bearing unit formed at one side of the center roller is seated on the center rail. The center roller has a center shaft formed at a position spaced apart from the center bearing unit such that the center shaft can rotate the center roller.

A door linkage system for guiding a door of a motor vehicle between an open position and a closed position relative to a vehicle body includes at least one linkage pivotally connected between the door and the vehicle body to move a rear portion of the door away from the vehicle body substantially in a cross vehicle direction to a partially open position while a front portion of the door concurrently moves substantially in a longitudinal vehicle direction of the vehicle, and then, move the front portion and the rear portion of the door concurrently in substantially the longitudinal vehicle direction of the vehicle to the open position.

A vehicular slide door apparatus includes a guide rail forming a sliding path. A cutout portion in a side wall portion of the sliding path forms an insertion opening for a guide roller. The apparatus includes a fixing portion at a first end portion in the cutout portion, a positioning portion at a second end portion in the cutout portion, a closing member that includes a fixed end fixed to the fixing portion and a free end positioned by the positioning portion and that closes the insertion opening, and a fulcrum forming portion forming a rotation fulcrum for the closing member. The fulcrum forming portion generates biasing force of displacing the free end outward. The free end is positioned in contact against the positioning portion located on an outer side of the sliding path. Thereby, the free end and the side wall portion form a continuous sliding contact surface.

A structure for preventing opposite sliding doors from swaying is provided. The structure includes a lower rail mounted in a longitudinal direction at a lower side of a vehicle body, a lower rail roller unit rollably connected to the lower rail, a lower rail swing arm rotatably connected to the lower rail roller unit and a door, a guide roller unit fixedly connected to the lower rail, the guide roller unit including a guide roller rotatably connected to the lower rail, and a guide stopper fixedly connected to the door. The guide stopper includes a guide route formed inside the guide stopper and configured to serve as a rolling movement route for the guide roller, an exit/entrance portion formed at a first end of the guide route, and a stop portion formed at a second end of the guide route.

A guide rail includes: a first rail that has a bottom wall on which a load roller rolls and supports the weight of a sliding door; a second rail that has side walls on which two guide rollers roll and defines a moving direction of the sliding door; and a first restriction part that restricts the motion of the load roller in an axial direction.

An apparatus for a vehicle includes a door rail configured to be installed on a door panel of a door, a vehicle body rail configured to be coupled to a vehicle body so as to be opposite to the door rail, a vehicle body rail slider coupled to one surface of the vehicle body rail so as to be slidable in a front-rear direction along the vehicle body rail, a door rail slider coupled to the door rail so as to be slidable in the front-rear direction along the door rail, a pulley rotatable in conjunction with a movement of the vehicle body rail slider, a speed reducer directly connected to the pulley, and a second arm hingedly coupled to the speed reducer and configured to move the door rail slider.

A door roller includes a carriage member comprising a plurality of bores, and a plurality of roller assemblies connected to the carriage member, each roller assembly of the plurality of roller assemblies including a pivot bearing rotatably disposed within a bore of the plurality of bores and a pair of rollers coupled to the pivot bearing. Each wheel assembly is configured to pivot relative to the carriage member.

A roller assembly for a sliding vehicle door includes a bracket structure having a first and second inner horizontal guide roller arranged to interact with an inner vertical surface of the track member. The bracket structure further includes at least a first and second vertical guide roller arranged to interact with a first inner surface of the track member, a resiliently arranged rotatable member arranged to interact with a second inner surface of the track member and at least one outer horizontal guide roller arranged to interact with an outer vertical surface of the track member.

A structure of a flap part for covering a rail part when opening a sliding door of a vehicle, includes a door flap part including an installation hole, a door flap guide, door trim flap links, elastic members, and a flap, wherein the sliding door is supported by a roller arm, and the rail part, which is externally exposed when the sliding door is opened, is covered by the flap part, and wherein at a time of opening the door, a roller provided on the roller arm comes into contact with a door flap guide and pushes the door flap guide to ensure a movement space for the roller arm.

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.