Patent ID: 11945289
Assignee: KIA CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC B  E | IPC B  E

Claim 11:
12. A sliding door apparatus for a vehicle, the sliding door apparatus comprising:
a door for opening and closing a door opening formed in a vehicle body;
a door arm including a first end portion rotatably connected to an end portion of the door and a second end portion movable along a side sill of the vehicle body;
a door power connection portion provided in the door arm; and
a vehicle power connection portion provided in a position corresponding to the door power connection portion of the vehicle body and electrically connected to the door power connection portion according to rotation of the door arm,
wherein the vehicle power connection portion includes:
a first vehicle power connection portion electrically connected to the door power connection portion when the door is closed; and
a second vehicle power connection portion electrically connected to the door power connection portion when the door is opened;

a lower slider coupled to the second end portion of the door arm and provided to move linearly along the side sill of the vehicle body; and
a lower arm plate connecting the second end portion of the door arm and the lower slider and provided to rotate and linearly move when the lower slider moves along the side sill,
wherein a plurality of first rollers are mounted on the lower arm plate and disposed at a predetermined interval,
wherein the first rollers are inserted into a rail formed in a longitudinal direction of the vehicle body to move therealong,
wherein the first rollers are provided so that two rollers having a first height among the first rollers and two rollers having a second height lower than the first height among the first rollers are alternately disposed with each other, and
wherein the rail is formed in plurality in a depth corresponding to a height of each of the two rollers having the first height among the first rollers and the two rollers having the second height.