# US 11,440,593 B2 · Vehicle body lower structure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,440,593 B2 - Document ID: US11440593B2 - Status: Granted - Kind: B2 - Application number: 17/194,313 - Filed: 2021-03-08 - Published: 2021-09-16 - Granted: 2022-09-13 - Earliest claimed: 2020-03-16 - Assignees: Toyota Jidosha Kabushiki Kaisha; Subaru Corporation - Applicants: Toyota Jidosha Kabushiki Kaisha; Subaru Corporation - Inventors: Naoki Takahashi; Shunji Shibata - Web page: https://patentgrep.com/patent/US11440593B2 ## CPC - B62D 25/025: {Side sills thereof} - B62D 21/157: {for side impacts} - B60K 1/04: of the electric storage means for propulsion - B60K 2001/0438: {Arrangement under the floor} - 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 ## Abstract A vehicle body lower structure may include: a rocker; an energy absorbing member (an EA member) arranged under the rocker, the EA member being a hollow beam; and a collar penetrating an upper plate of the EA member and welded to the upper plate. The collar is arranged between the rocker and a lower plate of the EA member. The EA member includes a first/a second/a third vertical plates and a diagonal brace, these plates connect the upper plate and the lower plate of the EA member to each other. The second vertical plate is positioned between the first and the third vertical plates. The collar passes between the first vertical plate and the second vertical plate. The diagonal brace connects a first inner corner where the second vertical plate meets the upper plate and a second inner corner where the third vertical plate meets the lower plate. ## Claims ### Claim 1 A vehicle body lower structure comprising: a rocker arranged at a lower lateral part of a vehicle body and extending in a front-rear direction of the vehicle body; a power source arranged adjacent to the rocker; an energy absorbing member arranged under the rocker, the energy absorbing member being a hollow beam; and a collar penetrating an upper plate of the energy absorbing member and welded to the upper plate, wherein an upper end of the collar is in contact with the rocker and a lower end of the collar is in contact with a lower plate of the energy absorbing member, wherein the energy absorbing member includes a first vertical plate, a second vertical plate, a third vertical plate and a diagonal brace, the first vertical plate, the second vertical plate, and the third vertical plate connect the upper plate and the lower plate of the energy absorbing member to each other, the first vertical plate, the second vertical plate and the third vertical plate are arranged along a vehicle lateral direction such that the second vertical plate is positioned between the first vertical plate and the third vertical plate, the collar passes between the first vertical plate and the second vertical plate, the diagonal brace connects a first inner corner where the second vertical plate meets the upper plate and a second inner corner where the third vertical plate meets the lower plate, and a ratio of a thickness of the upper plate to a thickness of the collar is from 0.5 to 2.0. ### Claim 2 (depends on 1) The vehicle body lower structure of claim 1, wherein an under-bead thickness of the upper plate in an area under a weld bead which joins the collar to the upper plate is thicker than a thickness of the upper plate in an area away from the weld bead, and a ratio of the under-bead thickness of the upper plate to the thickness of the collar is from 0.5 to 2.0. ### Claim 3 (depends on 1) The vehicle body lower structure of claim 1, wherein the power source is supported by the energy absorbing member. ### Claim 4 (depends on 1) The vehicle body lower structure of claim 1, wherein the rocker and the energy absorbing member are fixed to each other by a bolt passing through the collar.