Ultraviolet ray irradiation device and ultraviolet ray blocking unit

An ultraviolet ray blocking unit which is mounted on an ultraviolet ray irradiation device which sterilizes a surface of a glove which is mounted on a hand of an operator and is made of an ultraviolet ray non-transmitting material by irradiating ultraviolet rays to the glove, the ultraviolet ray blocking unit configured to prevent an irradiation of the ultraviolet rays to an outside of the ultraviolet ray irradiation device when the glove of the operator is inserted into the ultraviolet ray irradiation device, wherein

• the ultraviolet ray irradiation device comprises:
• a sterilization chamber housing formed of an ultraviolet ray blocking member configured to block the ultraviolet rays, the sterilization chamber housing having a sterilization chamber in the sterilization chamber housing, and having an insertion opening through which the hand on which the glove is mounted is insertable into the sterilization chamber;
• an ultraviolet ray irradiation unit disposed in the sterilization chamber housing and configured to irradiate the ultraviolet rays to the sterilization chamber;
• an ultraviolet ray blocking balloon having a sleeve shape, the ultraviolet ray blocking balloon being disposed along an edge portion of the insertion opening, the ultraviolet ray blocking balloon being made of an ultraviolet ray non-transmitting material;
• a pressurized gas supplying and discharging device configured to supply a gas under pressure to the ultraviolet ray blocking balloon and to discharge the gas supplied under pressure;
• an insertion depth detection unit configured to output an insertion depth detection signal when the hand on which the glove is mounted is brought into a state where the hand is inserted into the sterilization chamber by a predetermined depth is detected;
• and
• a controller configured to perform an ultraviolet ray irradiation control of the ultraviolet ray irradiation unit and a pressurized gas supplying and discharging control of the pressurized gas supplying and discharging device based on the insertion depth detection signal outputted from the insertion depth detection unit, wherein
• the ultraviolet ray blocking balloon forms an opening which allows an insertion and a removal of the hand on which the glove is mounted before the gas is supplied under pressure to the ultraviolet ray blocking balloon, the ultraviolet ray blocking balloon is inflated with a supply of the gas under pressure to the ultraviolet ray blocking balloon and surrounds a wrist portion of the glove in a state where the ultraviolet ray blocking balloon is brought into close contact with the wrist portion of the glove, and the ultraviolet ray blocking balloon is deflated with a discharge of the gas supplied under pressure and forms the opening which allows the insertion and the removal of the hand on which the glove is mounted, and
• the sterilization chamber housing includes a sterilization chamber housing member in which the insertion opening is formed, and which forms one surface of the sterilization chamber housing by being mounted on the sterilization chamber housing, and
• the ultraviolet ray blocking unit includes:
• the sterilization chamber housing member;
• and the ultraviolet ray blocking balloon disposed along the edge portion of the insertion opening formed in the sterilization chamber housing member, and is detachably mounted on the sterilization chamber housing.