Door opening and closing structure
AssigneeApex Billion Int'l Inv. Ltd.
InventorYuan-Chen Chen
Life of this patent
Estimating the term…
Abstract
The invention relates to a door opening and closing structure including a door plate, a transverse bar, a zipper and a pulling string. When a tension is applied on the pulling string and the tension is greater than a gravity of the transverse bar and at least a portion of the door plate, and the at least a portion of the door plate is driven by the transverse bar to move along the extension direction to form an opening. When the tension is less than the gravity of the transverse bar and the at least a portion of the door plate, the door plate is driven by the transverse bar to move along the gravity direction to reduce the opening.
Claims16
A door opening and closing structure, adapted to be combined with a main body to shield or open a space in the main body, the door opening and closing structure comprising:
- a door plate;
- a transverse bar, connected to the door plate;
- a zipper, the transverse bar is connected to the zipper;
- and
- a pulling string, the pulling string is connected to the transverse bar, wherein when a tension is applied on the pulling string and the tension is greater than a gravity of the transverse bar and at least a portion of the door plate, the transverse bar is pulled by the pulling string along an extension direction of the zipper to pull open at least a portion of the zipper, and the at least a portion of the door plate is driven by the transverse bar to move along the extension direction to form an opening, and
- when the tension is less than the gravity of the transverse bar and the at least a portion of the door plate, the transverse bar moves along a gravity direction to close the at least a portion of the zipper and the door plate is driven by the transverse bar to move along the gravity direction to reduce the opening.
Dependencies are inferred from the claim text.