Vehicle body frame

A vehicle body frame includes: a lower frame fixed to a floor of a vehicle to define a lower region of an interior space in the vehicle; a roof frame connected to an upper portion of the lower frame to define an upper region of the interior space, the roof frame configured to slide in a vertical direction of the vehicle with respect to the lower frame to expand the interior space upward when the roof frame slides upward; a lower door frame forming a lower portion of the door; and an upper door frame connected to the lower door frame to form an upper portion of the door, and configured to slide together with the roof frame to expand the door upward when the roof frame slides upward. 一种车身框架，包括：下部框架，固定到车辆的底板以限定车辆中的内部空间的下部区域；车顶框架，连接到下部框架的上部以限定内部空间的上部区域，车顶框架构造成相对于下部框架在车辆的竖直方向上滑动，以在车顶框架向上滑动时向上扩展内部空间；下部门框架，形成车门的下部；以及上部门框架，连接到下部门框架以形成车门的上部，并构造成与车顶框架一起滑动，以在车顶框架向上滑动时向上扩展车门。