# US 10,479,395 B2 · Steering system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,479,395 B2 - Document ID: US10479395B2 - Status: Granted - Kind: B2 - Application number: 15/888,353 - Filed: 2018-02-05 - Published: 2018-08-16 - Granted: 2019-11-19 - Earliest claimed: 2017-02-13 - Assignees: Jtekt Corporation - Applicants: Jtekt Corporation - Inventors: Michiaki Yamaoka; Masayoshi Sakuda; Yoshihito Yoshihara; Atsumune Nagatani; Satoki Yoshimura; Yu Myohoji - Web page: https://patentgrep.com/patent/US10479395B2 ## CPC - B62D 1/192: {Yieldable or collapsible columns} - B62D 1/189: the entire column being tiltable as a unit - B62D 1/19: incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible (shock absorbers using plastic deformation of members in general F16F7/12) - 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 Provided is a steering system that is configured to absorb a secondary collision shock load and achieves high vibration rigidity with a simple structure. A lower jacket is externally fitted to an upper jacket in a slidable manner. A support member that supports the lower jacket includes a fixed portion that is fixed to a vehicle body. A shock of a secondary collision is absorbed by a shock absorbing mechanism. The shock absorbing mechanism includes second slide members configured to move together with the upper jacket, and to frictionally slide relative to the support member upon a secondary collision. The second slide member includes a sandwiched portion that is sandwiched between the support member and the lower jacket, and a transmitting portion that is brought into contact with both of the lower jacket and the support member at a position closer to the fixed portion than the sandwiched portion. ## Claims ### Claim 1 A steering system, comprising: an upper jacket to which a steering member is connected at one end in a column axis direction; a lower jacket externally fitted to the other end of the upper jacket in the column axis direction in a slidable manner; a support member including a fixed portion that is fixed to a vehicle body, and configured to support the lower jacket; and a shock absorbing mechanism configured to absorb a shock of a secondary collision, the shock absorbing mechanism including a slide member configured to move together with the upper jacket, and to frictionally slide relative to the support member upon the secondary collision, wherein the slide member includes: a sandwiched portion that is sandwiched between the support member and the lower jacket; and a transmitting portion that is formed integrally with the sandwiched portion, and is brought into contact with both of the lower jacket and the support member at a position closer to the fixed portion than the sandwiched portion. ### Claim 2 (depends on 1) The steering system according to claim 1, wherein the transmitting portion extends from the sandwiched portion toward the fixed portion between the support member and the lower jacket. ### Claim 3 (depends on 1) The steering system according to claim 1, wherein the transmitting portion is brought into contact with both of the support member and the lower jacket at a position closer to the fixed portion than a central axis of the upper jacket. ### Claim 4 (depends on 1) The steering system according to claim 1, wherein the transmitting portion is brought into contact with both of the support member and the lower jacket irrespective of a position of the upper jacket within a telescopic adjustment range. ### Claim 5 (depends on 1) The steering system according to claim 1, wherein the transmitting portion includes: a flat plate portion that is interposed between the support member and the lower jacket; and a protruding portion that protrudes from the flat plate portion toward at least one of the support member and the lower jacket. ### Claim 6 (depends on 1) The steering system according to claim 1, wherein the shock absorbing mechanism further includes another slide member attached to the upper jacket, and configured to frictionally slide relative to the upper jacket upon the secondary collision.