# US 2013/0152477 A1 · Invisible sliding door > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0152477 A1 - Document ID: US20130152477A1 - Status: Published application - Kind: A1 - Application number: 13/673,745 - Filed: 2012-11-09 - Published: 2013-06-20 - Earliest claimed: 2011-12-14 - Assignees: Hyundai Motor Company - Inventors: Jae Hong Choi - Web page: https://patentgrep.com/patent/US20130152477A1 ## CPC - E06B 3/46: Horizontally-sliding wings {(E06B3/487 takes precedence)} - B60J 5/06: slidable; foldable - E05D 15/101: {specially adapted for vehicles (E05D15/1007 takes precedence)} - E05F 11/48: operated by cords or chains {or other flexible elongated pulling elements, e.g. tapes} - E05D 2015/1026: {accessories, e.g. sliding or rolling guides, latches} - E05Y 2201/22: Locks - E05Y 2900/531: Doors - E06B: FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES (shades or blinds for greenhouses A01G9/22; curtains A47H; lids for car boots or bonnets B62D25/10; skylights E04B7/18; sunshades, awnings E04F10/00) - B60J: WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES (fastening, suspending, closing, or opening of such devices E05) - E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00) - E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF ## Abstract A sliding door may include a rail slidably supported by a rail anchor, a body part fixed to the rail, a main arm hinge-connected with the body part, a driving bar hinge-connected with the body part, a first link hinge-connected with the main arm and the driving bar, a second link hinge-connected with the main arm and a first slot of the driving bar, a door part hinge-connected with the main arm and having a second slot hinge-connected with the second link through the first slot, a gear part of the main bar, a first drum engaged to the gear part, a first cable connected with the first drum and the rail anchor, a second drum rotatably mounted at the rail, a second cable wound around the second drum and connected with the first drum, and a third cable connected with the second drum and the rail anchor. ## Claims ### Claim 1 A sliding door, comprising: a bar-shaped rail slidably supported by a rail anchor mounted in a vehicle; a body part fixed to one end of the rail; a main arm having one end hinge-connected with a rear of the body part; a driving bar having one end hinge-connected with a front of the body part; a first link having both ends hinge-connected with a middle region of the main arm and a middle region of the driving bar respectively; a second link having one end hinge-connected with a middle region of the main arm and the other end hinge-connected with a first slot formed at the other end of the driving bar; a door part having one end hinge-connected with the other end of the main arm and having the other end formed with a second slot hinge-connected with the other end of the second link through the first slot; a gear part formed at the one end of the main bar hinge-connected with the body part and rotated together with the main bar; a first drum rotatably mounted to the body part and engaged to the gear part to be rotated by the gear part; a first cable having both ends each connected with the first drum and the rail anchor and slidably moving the rail in a rail anchor direction while being wound around the first drum at the time of a rotation of the first drum; a second drum rotatably mounted at the other end of the rail; a second cable having one end wound around the second drum and having the other end connected with the first drum to rotate the second drum while being released from the second drum, simultaneously with being wound around the first drum at the time of a reverse rotation of the first drum; and a third cable having both ends each connected with the second drum and the rail anchor and slidably moving the rail so as to return to an original position while being wound around the second drum at the time of the rotation of the second drum. ### Claim 2 (depends on 1) The sliding door of claim 1, wherein a hinge connection of the first slot formed at the other end of the driving bar and the second link and a hinge connection of the second slot formed at the other end of the door part and the second link are performed by the same hinge pin, ### Claim 3 (depends on 1) The sliding door according to claim 1, wherein a hinge point of the second link and the main arm is disposed farther away from the one end of the main arm than a hinge point of the first link and the main arm, wherein the first slot has a straight shape along a length direction of the driving bar, and wherein the second slot is formed along a plane direction of the door part. ### Claim 4 (depends on 2) The sliding door according to claim 2, wherein the second slot has an arc shape in which a middle portion thereof is protrudedly formed toward the rail. ### Claim 5 (depends on 1) The sliding door according to claim 1, wherein the rail is coupled with the rail anchor to be slid in a front and back direction of the vehicle, the one end of the main arm is fixedly mounted with a sector gear, a turning force of the main arm generated when the door is opened is transferred through the sector gear and a driving force of the sector gear is a driving source going the rail backward, and a turning force of the main arm generated when the door is closed is transferred through the sector gear and the driving force of the sector gear is a driving source going the rail forward. ### Claim 6 (depends on 2) The sliding door of claim 2, wherein the door part is provided with a hook, and wherein the hook is coupled with a pin mounted in the vehicle when the door mounted at the door part is closed. ### Claim 7 (depends on 2) The sliding door of claim 2, further comprising: a locking part provided with a sawtooth mounted at one side of the rail; a latch unit mounted in the vehicle and elastically supported by a spring and fixing the rail while the rail is locked to the sawtooth of the locking part when the rail slidably moves; and a fourth cable connecting a door handle with the latch part and unlocking the locking with the sawtooth by rotating the latch part when the door handle is pulled.