Fixing device and image forming apparatus

A fixing device comprising:

• a heating rotating body;
• and
• a heating section configured to apply heat to the heating rotating body, wherein
• the heating section includes:
• a heater which applies heat to the heating rotating body;
• a heater holding member which holds the heater;
• a heat-sensitive body facing the heater;
• a cover member which covers the heat-sensitive body;
• and
• an urging member which urges the cover member in a first direction which is toward the heater from the heat-sensitive body, and
• the urging member extends in a second direction intersecting with the first direction and engages with the heater holding member and the cover member.