To provide a vehicular indoor illumination lamp that uses one end of a circuit substrate as a part of a switch component, in which components are easily assembled and installed, and that includes a small number of components, and has excellent cost performance.
In a vehicular indoor illumination lamp, a lens 21 and a switching knob 40 are assembled and installed in a housing 20, and a circuit substrate 31 on which light source 32 are assembled and installed in a lighting fixture body 30. A terminal 42 are fixed on the switching knob 40, and a connection part 43 is provided on the side part of the circuit substrate 31. In the vehicular indoor illumination lamp, the housing 20 and the lighting fixture body 30 are assembled and installed, the terminal 42 is electrically connected to the connection part 43, and the switching of a switch SW is performed by the slide of the switching knob 40.
YAMADA SHINJI
URUSHIBARA HISAYO
Toshimitsu Ichikawa