Switch unit

A switch unit comprising:

• a plurality of switches including a first switch and a second switch;
• a panel on which the plurality of switches are arranged side by side along one direction and an operation part of each of the first and second switches is exposed from an opening part formed on a surface thereof;
• and
• an attachment being a separate member from the panel and assembled to the panel in a state that at least one of the first and second switches is assembled thereto, wherein:
• the panel is formed in a configuration that the surface bends along a parallel direction, which is a direction that first and second switches line up;
• the attachment has wall surface parts assembled to the first switch so as to surround the first switch;
• a side face part along the parallel direction of the panel has a first engagement part;
• and
• among the wall surface parts of the attachment, a side wall surface part facing the side face part in a state that the attachment is assembled to the panel has an engaged part with which the first engagement part is engaged.