Automatic analysis device

An automatic analysis device comprising:

• a switch;
• a control unit;
• a dispensing mechanism configured to dispense a reagent contained in a reagent container;
• a rotation shaft;
• a motor coupled to the rotation shaft, and
• a reagent storage cabinet that stores a plurality of reagent containers, wherein the reagent storage cabinet includes
• a reagent jacket mounted to the rotation shaft and configured to rotate while holding the plurality of reagent containers,
• a housing that accommodates the reagent jacket,
• a lid part that is fixed to the housing from above and that has formed therein a dispensing hole for dispensing a reagent inside the plurality of reagent containers, and
• a sliding contact mechanism mounted on the reagent jacket and comprising a scraper formed of an elastic material, a scraper plate supporting the scraper, a hinge connecting the scraper to the scraper plate, a movable member connected to the scraper plate, and a spring biasing the movable member,
• wherein the control unit is configured to drive the motor that rotates the rotation shaft to rotate the reagent jacket, the switch is configured to switch the sliding contact mechanism between a state of the scraper being in contact with an inner wall surface of the housing and a state of the scraper being spaced away from the inner wall surface of the housing,
• the reagent jacket has a hole blocking part positioned beneath the dispensing hole, and
• the sliding contact mechanism is provided on the hole blocking part.