Trash can

Trash can with a double-wall air exhaust structure for easy bag insertion and removal

This technology features a trash can with a gap between an inner body with air-permeable holes and an outer body with an air vent. By evacuating air from this space, the trash bag is pulled tightly against the inner walls. The lower part of the inner body is supported by an elastic member, allowing it to slide and adjust the capacity of the bag compartment.

Conventional ring-style trash cans are inconvenient because users must manually press the bag against the inner walls to remove trapped air before use. Additionally, full bags often get stuck against the inner walls, making them difficult to remove.

With this technology, evacuating air from the gap causes the lower body to descend, spreading the bag wide. When the sealing member is removed, the elastic member restores the lower body to its original position, shrinking the compartment and allowing the full bag to be lifted out easily. It is suitable for residential and office trash cans and public recycling bins, enabling faster and more hygienic bag replacement.

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Key Features:

• An inner body forming a bag compartment with multiple air-permeable holes, and an outer body with an air vent separated by a gap
• A configuration where the outer surface of the trash bag adheres to the inner surface of the inner body when air is evacuated from the gap through the air vent
• An inner body consisting of an upper body coupled to the outer body and a sliding lower body, with an elastic member pushing the lower body toward the upper body
• A configuration where removing the sealing member that secures the bag opening causes the lower body to rise due to elastic recovery, shrinking the bag compartment

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