A latch member for full opening includes a latch member for full opening that operates a latch claw into an engagement position or a non-engagement position with a striker. The latch member for full opening is configured of a first member on a sliding door side of a turning shaft, and is configured of a second member operated by the first member on a vehicle body side of the turning shaft.

A latch member for full opening includes a latch member for full opening that operates a latch claw into an engagement position or a non-engagement position with a striker. The latch member for full opening is configured of a first member on a sliding door side of a turning shaft, and is configured of a second member operated by the first member on a vehicle body side of the turning shaft.

An X-type guide bar structure includes a lower rail mounted in a longitudinal direction at a lower side of a vehicle body, a lower slider rollably connected to the lower rail, a guide rail mounted on a door in the longitudinal direction of the vehicle body, first and second guide sliders movably connected to the guide rail, and first and second guide bars having guide paths in the longitudinal direction, wherein the first guide bar is rotatably connected to the lower slider and the second guide slider, the second guide bar is rotatably connected to the lower rail and the first guide slider, the first and second guide bars overlap in an X shape so that the guide paths face each other, and a guide pin is inserted into a central portion of the X shape.

An electrical linkage assembly for a window or door includes a frame mount, a sash mount, a first link arm, and a second link arm. A first pivot joint is formed between the frame mount and the first link arm, a second pivot joint is formed between the first and second link arms, and a third pivot joint is formed between the second link arm and the sash mount. One or more electrical wires extend from the frame mount, through the first and second link arms and each of the first, second, third pivot joints, fully enclosed therein, and out of the sash mount.

An electrical linkage assembly for a window or door includes a frame mount, a sash mount, a first link arm, and a second link arm. A first pivot joint is formed between the frame mount and the first link arm, a second pivot joint is formed between the first and second link arms, and a third pivot joint is formed between the second link arm and the sash mount. One or more electrical wires extend from the frame mount, through the first and second link arms and each of the first, second, third pivot joints, fully enclosed therein, and out of the sash mount.

A link type 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 first link member having a first end rotatably connected to the door and a second end connected to a link hinge, a second link member having a first end rotatably connected to the lower rail roller unit and a second end connected to the link hinge, and a spring provided on the link hinge. The spring is configured to supply elastic force such that one end of the first link member applies force to the door in a direction toward outside of the vehicle body.

A link type 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 first link member having a first end rotatably connected to the door and a second end connected to a link hinge, a second link member having a first end rotatably connected to the lower rail roller unit and a second end connected to the link hinge, and a spring provided on the link hinge. The spring is configured to supply elastic force such that one end of the first link member applies force to the door in a direction toward outside of the vehicle body.

A spindle type 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 lower guide rail mounted on the door and configured to form a lower guide route in the longitudinal direction, and a spindle assembly positioned at one side of the lower rail, the spindle assembly including a spindle connected in the longitudinal direction to a fixing unit fixed to the vehicle body, having one end rollably connected to the lower guide rail, having a threaded portion formed on an outer circumferential surface thereof, and being configured to be movable in a threaded manner between the vehicle body and the door.

A spindle type 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 lower guide rail mounted on the door and configured to form a lower guide route in the longitudinal direction, and a spindle assembly positioned at one side of the lower rail, the spindle assembly including a spindle connected in the longitudinal direction to a fixing unit fixed to the vehicle body, having one end rollably connected to the lower guide rail, having a threaded portion formed on an outer circumferential surface thereof, and being configured to be movable in a threaded manner between the vehicle body and the door.

Disclosed embodiments include automotive vehicles with dual-guide-rail sliding door and dual-guide-rail sliding door systems for automotive vehicles. An illustrative automotive vehicle includes a body of the vehicle; a sliding door movably connected to the body of the vehicle; a front rail connected to a body of the vehicle; a rear rail connected to a body of the vehicle behind rearward of the front rail; a door rail connected to the sliding door; a front arm assembly connected to the sliding door and movably connected to the front rail; and a rear arm assembly movably connected to the rear rail and movably connected to the door rail. The sliding door is movably connected to the body of the vehicle, and a lateral distance travelled by the sliding door along the body of the vehicle from an open position to a closed position is greater than a length of the rear rail.