Abstract: The present application prevents an engaging pin or a catcher pin from damaging an upper surface of a side sill or a lower surface of a side door when the door is closed, and reduces a height of the side sill over which an occupant steps when getting into a vehicle. A vehicle side structure includes an engaging portion that is at least partially provided between a lower part of a side door and a side sill and provides engagement between the lower part and the side sill. The engaging portion includes an engaging pin provided to protrude from an upper surface of the side sill, and a catcher pin that is provided in the lower part of the side door, receives the engaging pin brought into a space above the lower part of the side door, and engages a tip of the engaging pin.

Abstract: A vehicle door structure that can displace inward a region directly above a lower end of a door built-in center pillar while preventing displacement of a door lower surface to absorb lateral collision energy immediately after lateral collision is provided. In the vehicle door structure including a door built-in center pillar extending from an upper end to a lower end at a front end in a rear door of a biparting door system, a reinforcement is provided on a door lower surface below the door built-in center pillar, a part of the lower end of the door built-in center pillar is mounted to the reinforcement, and a low rigidity portion having lower rigidity than an upper part the door built-in center pillar is provided directly above the lower end of the door built-in center pillar.

Abstract: The present application prevents an engaging pin or a catcher pin from damaging an upper surface of a side sill or a lower surface of a side door when the door is closed, and reduces a height of the side sill over which an occupant steps when getting into a vehicle. A vehicle side structure includes an engaging portion that is at least partially provided between a lower part of a side door and a side sill and provides engagement between the lower part and the side sill. The engaging portion includes an engaging pin provided to protrude from an upper surface of the side sill, and a catcher pin that is provided in the lower part of the side door, receives the engaging pin brought into a space above the lower part of the side door, and engages a tip of the engaging pin.

Abstract: A vehicle door structure that can displace inward a region directly above a lower end of a door built-in center pillar while preventing displacement of a door lower surface to absorb lateral collision energy immediately after lateral collision is provided. In the vehicle door structure including a door built-in center pillar extending from an upper end to a lower end at a front end in a rear door of a biparting door system, a reinforcement is provided on a door lower surface below the door built-in center pillar, a part of the lower end of the door built-in center pillar is mounted to the reinforcement, and a low rigidity portion having lower rigidity than an upper part the door built-in center pillar is provided directly above the lower end of the door built-in center pillar.