| 摘要 |
PROBLEM TO BE SOLVED: To protect an electronic part disposed on the back surface of a door. SOLUTION: An extrusion cylinder 12 is vertically attached to the back surface of a heat-insulating door 3, and a lid 19 is screwed in the opening of a pack-receiving chamber 16 for receiving the pack B of an ice cream A to cover the opening. A magnet 48 is attached to the outer periphery of the lid 19, and the magnet 48 is forward directed, when the lid 19 is normally screwed. A contactless switch 50 sensitive to the magnet 48 is attached to the tank side surface of a lower duct 40 for guiding cold air into an extrusion portion 30. The periphery of the contactless switch 50 is covered with a cover 52. When the heat-insulating door 3 is opened to exchange the ice cream pack B, it is avoided that the contactless switch 50 is directly not exposed to warm air outside of the tank, thereby preventing dew drops or the like from generating on the contactless switch 50. The cover 52 protects that the contactless switch 50 is collided with the lid 19, when the lid is attached or detached.
|
