# US 11,305,820 B2 · Vehicle body side structure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,305,820 B2 - Document ID: US11305820B2 - Status: Granted - Kind: B2 - Application number: 16/839,092 - Filed: 2020-04-03 - Published: 2020-10-22 - Granted: 2022-04-19 - Earliest claimed: 2019-04-19 - Assignees: Honda Motor Co., Ltd. - Applicants: Honda Motor Co., Ltd. - Inventors: Kazunori Hida - Web page: https://patentgrep.com/patent/US11305820B2 ## CPC - B62D 25/025: {Side sills thereof} - B62D 25/16: Mud-guards or wings; Wheel cover panels (equipped with means for freeing wheels or tyres from foreign matter B60S) - B62D 27/06: readily releasable - B62D 25/04: Door pillars {; windshield pillars} - 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 vehicle body side structure includes a side sill stiffener, a wheel arch reinforcement member, an inner panel and a bulkhead. The side sill stiffener has a side sill stiffener extension section extending from a rear end portion of the side sill toward behind and above in the vehicle body. The wheel arch reinforcement member is coupled to the side sill stiffener extension section. The inner panel is coupled to the wheel arch reinforcement member and forms a first closed cross section. A first bulkhead is coupled to the side sill stiffener extension section and the wheel arch reinforcement member and partitions the first closed cross section. ## Claims ### Claim 1 A vehicle body side structure comprising: a side sill stiffener having a side sill stiffener extension section extending upward at an end portion of a side sill; a wheel arch reinforcement member coupled to an upper end portion of the side sill stiffener extension section; an inner panel coupled to the wheel arch reinforcement member and configured to form a first closed cross section; and a bulkhead coupled to the side sill stiffener extension section and the wheel arch reinforcement member and configured to partition the first closed cross section. ### Claim 2 (depends on 1) The vehicle body side structure according to claim 1, wherein the first closed cross section is coupled so as to be continuous with a second closed cross section of the side sill constituted by the side sill stiffener and the inner panel. ### Claim 3 (depends on 1) The vehicle body side structure according to claim 1, wherein the bulkhead has: a first connecting section coupled to the wheel arch reinforcement member and the side sill stiffener extension section; a second connecting section coupled to the inner panel; and a wall section configured to connect the first connecting section and the second connecting section and having a bead extending toward the first connecting section and the second connecting section. ### Claim 4 (depends on 3) The vehicle body side structure according to claim 3, comprising: a side panel outer member configured to cover the side sill stiffener from a side outward of a vehicle; a first fastening member provided in the side sill stiffener extension section on a side closer to the side panel outer member; and a second fastening member fastened to the first fastening member in the first closed cross section through an insertion hole formed in a portion of the inner panel corresponding to the first fastening member. ### Claim 5 (depends on 4) The vehicle body side structure according to claim 4, comprising a hole closing member configured to close the insertion hole. ### Claim 6 (depends on 1) The vehicle body side structure according to claim 1, wherein a portion to which the side sill stiffener extension section and the wheel arch reinforcement member are coupled is inclined in a vehicle width direction such that a first distance with respect to the inner panel at one of an outward side or an inward side of the portion to which the side sill stiffener extension section and the wheel arch reinforcement member are coupled in the vehicle width direction is greater than a second distance with respect to the inner panel at the other one of the outward side or the inward side of the portion to which the side sill stiffener extension section and the wheel arch reinforcement member are coupled in the vehicle width direction. ### Claim 7 (depends on 4) The vehicle body side structure according to claim 4, wherein the wall section is provided below the insertion hole, and a cavity between the first closed cross section and the wall section is set to be smaller than the second fastening member. ### Claim 8 (depends on 4) The vehicle body side structure according to claim 4, wherein the wall section is provided below the insertion hole and is provided on the first connecting section at a side in which the first closed cross section has a larger region, and comprises a foaming agent filled into the first closed cross section from the insertion hole. ### Claim 9 (depends on 4) The vehicle body side structure according to claim 4, wherein, at a portion in which the side sill stiffener extension section and the wheel arch reinforcement member are coupled, the first connecting section, the wheel arch reinforcement member and the side sill stiffener extension section are coupled by the first fastening member and the second fastening member in at least two places in the vehicle width direction.