# US 11,077,885 B2 · Rocker member and vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,077,885 B2 - Document ID: US11077885B2 - Status: Granted - Kind: B2 - Application number: 16/966,366 - Filed: 2019-01-23 - Published: 2020-11-26 - Granted: 2021-08-03 - Earliest claimed: 2018-01-31 - Assignees: Nippon Steel Corporation - Applicants: Nippon Steel Corporation - Inventors: Atsuo Koga; Satoshi Hirose - Web page: https://patentgrep.com/patent/US11077885B2 ## CPC - B62D 27/02: rigid - B62D 21/157: {for side impacts} - B62D 25/025: {Side sills thereof} - B60K 1/04: of the electric storage means for propulsion - B60K 2001/0438: {Arrangement under the floor} - B60Y 2306/01: Reducing damages in case of crash, e.g. by improving battery protection - B62D 21/15: having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body (bumpers B60R19/02; shock absorbers in general F16F) - B62D 25/2072: {Floor protection, e.g. from corrosion or scratching (floor mats B60N3/04, armour F41H7/042, insulation B60R13/08, streamlining B62D35/02)} - B62D 29/00: Superstructures, {understructures, or sub-units thereof,} characterised by the material thereof {(B62D33/044, B62D33/048 take 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) - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY ## Abstract A side sill member includes a hollow member and a reinforcing member. The hollow member includes therein mutually facing first surface and second surface. The reinforcing member stands on the first surface or the second surface inside the hollow member. The reinforcing member is a tubular component having a polygonal cross section. A longest side of the polygonal cross section has a groove extending along an axial direction of the tubular component. ## Claims ### Claim 1 A side sill member comprising: a hollow member; a reinforcing member; and a first cover, wherein the hollow member comprises therein mutually facing first and second surfaces, the reinforcing member stands on the first surface or the second surface in the hollow member, the reinforcing member is a tubular component having a polygonal cross section, a longest side of the polygonal cross section has a groove extending along an axial direction of the tubular component, the first cover is welded to the reinforcing member to block an end of the reinforcing member near the first surface, and the first cover is welded to the first surface. ### Claim 2 (depends on 1) The side sill member according to claim 1, wherein the first cover is welded to a lateral portion of the hollow member between the first surface and the second surface. ### Claim 3 (depends on 2) The side sill member according to claim 2, wherein the first cover is welded to a part of the hollow member near the second surface with respect to the first surface. ### Claim 4 (depends on 1) The side sill member according to claim 1, wherein a second cover that blocks an end of the reinforcing member near the second surface is welded to the reinforcing member. ### Claim 5 (depends on 1) The side sill member according to claim 1, wherein the polygonal cross section of the reinforcing member is line-symmetric. ### Claim 6 (depends on 1) The side sill member according to claim 1, wherein the reinforcing member is made of a steel material. ### Claim 7 (depends on 1) The side sill member according to claim 1, wherein the hollow member is made of a steel material. ### Claim 8 (depends on 1) A vehicle comprising the side sill member according to claim 1, the side sill member being installed so that the first surface of the hollow member is situated near an inside of the vehicle and the second surface is situated near an outside of the vehicle.