# US 2025/0206366 A1 · Stowable electric column > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0206366 A1 - Document ID: US20250206366A1 - Status: Published application - Kind: A1 - Application number: 19/080,954 - Filed: 2025-03-17 - Published: 2025-06-26 - Earliest claimed: 2022-09-26 - Assignees: Namyang Nexmo Co., Ltd - Applicants: NAMYANG NEXMO Co., Ltd - Inventors: Jin Yong HONG; Kwan Taek JUNG - Web page: https://patentgrep.com/patent/US20250206366A1 ## CPC - B62D 1/183: adjustable between in-use and out-of-use positions, e.g. to improve access - B62D 1/181: with power actuated adjustment, e.g. with position memory - B62D 1/187: with tilt adjustment; with tilt and axial adjustment (B62D1/183, B62D1/19 takes precedence) - B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M) ## Abstract A stowable electric column includes: a first column portion; a second column portion which is slidably and coaxially disposed inside the first column portion and is movable in the longitudinal direction through one end of the first column portion; a third column portion which is coaxially disposed to be fastened to the inside of the second column portion and is movable in the longitudinal direction through one end of the second column portion; and a teledrive unit which moves the second column portion and the third column portion in the longitudinal direction, so that the length of the column is configured to be as variable as possible, and thus, a maximum space in a cabin for the convenience and activities of a driver during autonomous driving of a vehicle may be secured. ## Claims ### Claim 1 A stowable electric column comprising: a first column portion; a second column portion slidably and coaxially disposed inside the first column portion and configured to be movable in a longitudinal direction through one end of the first column portion; a third column portion coaxially disposed to be fastened to the inside of the second column portion and to be movable in a longitudinal direction through one end of the second column portion; and a teledrive unit configured to move the second column portion and the third column portion in a longitudinal direction. ### Claim 2 (depends on 1) The stowable electric column of claim 1, wherein the teledrive unit comprises: a first tele screw bar configured to move in a longitudinal direction through a rotational motion and move the second column portion and the third column portion in a longitudinal direction; and a second tele screw bar mounted in the first column portion and configured to have threads formed on an outer circumferential surface thereof, which engage with threads formed on an inner circumferential surface of the first tele screw bar, thereby being inserted into or withdrawn from inside the first tele screw bar as the first tele screw bar moves in a longitudinal direction through the rotational motion. ### Claim 3 (depends on 2) The stowable electric column of claim 2, wherein the teledrive unit further comprises: a tele bracket movably mounted on the second column portion in a longitudinal direction and coupled to the third column portion; a tele nut mounted in the tele bracket, through which the first tele screw bar passes, and configured to move along a length of the first tele screw bar together with the tele bracket through the rotational motion of the first tele screw bar; a tele gearbox mounted on the second column portion and configured to include a plurality of gears inside, which rotate the first tele screw bar through a rotational motion; and a tele motor configured to rotate the plurality of gears. ### Claim 4 (depends on 3) The stowable electric column of claim 3, wherein a tele guide hole is formed in the second column portion to extend in a longitudinal direction, and the tele bracket is movable in a longitudinal direction of the second column portion along the tele guide hole. ### Claim 5 (depends on 3) The stowable electric column of claim 3, wherein the plurality of gears comprises: a worm gear rotatably disposed inside the tele gearbox; and a worm wheel gear rotatably disposed inside the tele gearbox to engage with the worm gear, wherein one end portion of the first tele screw bar is disposed inside the tele gearbox so that the worm wheel gear is engaged, and one end portion of the second tele screw bar passes through the tele gearbox and the worm wheel gear, and is inserted into the end portion of the first tele screw bar. ### Claim 6 (depends on 1) The stowable electric column of claim 1, further comprising: a support roller rotatably mounted on the second column portion and configured to have a seating groove formed on an outer circumferential surface thereof; and a support guide bar mounted in the first column portion to extend in a longitudinal direction and seated in the seating groove, which supports the support roller during a longitudinal movement of the second column portion and guides a rotation and longitudinal movement of the support roller. ### Claim 7 (depends on 6) The stowable electric column of claim 6, wherein the seating groove is V-shaped. ### Claim 8 (depends on 6) The stowable electric column of claim 6, wherein the support roller is provided as a plurality of support rollers, and the plurality of support rollers comprise: at least one first support roller, wherein one side of the support guide bar is inserted into the seating groove; and at least one second support roller, wherein an opposite side of the support guide bar is inserted into the seating groove. ### Claim 9 (depends on 6) The stowable electric column of claim 6, further comprising: a roller mounting bracket coupled to the second column portion, which moves in a longitudinal direction together with the second column portion during a longitudinal movement of the second column portion, and on which the support roller is rotatably mounted. ### Claim 10 (depends on 9) The stowable electric column of claim 9, further comprising: an operating force adjustment bolt installed in the roller mounting bracket, which contacts the support guide bar and adjusts a longitudinal operating force of the second column portion.