US Patent 10181672 Lid retaining structure

A component supporting section of a lid retaining structure is supported on a pipe handle, and a stay is supported on the pipe handle via the component supporting section. A main body portion of a power supply socket is supported on a main body supporting section such that an entrance is located above the main body supporting section of the stay. In the event that a lid that covers the entrance is removed, the lid is retained in a space surrounded by the flat section of the stay, the pipe handle, and the component supporting section.