Abstract: A folding suitcase includes a back case component, a front lid component, a circumferential surface component, and a restoring component. Two opposite sides of the circumferential surface component are connected with the back case component and the front lid component, respectively, so as to form an accommodating space selectively. The circumferential surface component has multiple sidewall parts and multiple bending parts connected with the multiple sidewall parts. The multiple bending parts are bendable to lead the multiple sidewall parts to be capable of being folded oppositely or being erected on the back case component. The restoring component is located on at least one bending part. The restoring component is elastic for erecting the multiple sidewall parts.

Abstract: A suitcase structure includes a back case component, a front lid component and a ring-shaped gusset component. The opposite sides of the ring-shaped gusset component are connected with the edge of the back case component and the edge of the front lid component respectively, so as to form an accommodation space used for being closed. The ring-shaped gusset component includes a plurality of sidewall portions and a plurality of flexible structures linking the sidewall portions. The flexible deformation capability of the flexible structures is greater than the flexible deformation capability of the sidewall portions. The flexible structures has an inclination, and two of the sidewall portions adjacent to each other can be bent and therefore be stacked opposite to each other by the flexible structures linking the two of the sidewall portions.

Abstract: A suitcase structure includes a back case component, a front lid component and a ring-shaped gusset component. The opposite sides of the ring-shaped gusset component are connected with the edge of the back case component and the edge of the front lid component, so as to form an accommodating space. The ring-shaped gusset component has multiple first supporting parts and multiple second supporting parts connected to each other. The first supporting parts are each located at each of the end corners of the back case component. The second supporting parts are each located at each of the lateral edges of the back case component.

Abstract: A suitcase structure includes a back case component, a front lid component and a ring-shaped gusset component. The opposite sides of the ring-shaped gusset component are connected with the edge of the back case component and the edge of the front lid component, so as to form an accommodating space. The ring-shaped gusset component has multiple first supporting parts and multiple second supporting parts connected to each other. The first supporting parts are each located at each of the end corners of the back case component. The second supporting parts are each located at each of the lateral edges of the back case component.

Abstract: A suitcase structure includes a back case component, a front lid component and a ring-shaped gusset component. The opposite sides of the ring-shaped gusset component are connected with the edge of the back case component and the edge of the front lid component respectively, so as to form an accommodation space used for being closed. The ring-shaped gusset component includes a plurality of sidewall portions and a plurality of flexible structures linking the sidewall portions. The flexible deformation capability of the flexible structures is greater than the flexible deformation capability of the sidewall portions. The flexible structures has an inclination, and two of the sidewall portions adjacent to each other can be bent and therefore be stacked opposite to each other by the flexible structures linking the two of the sidewall portions.

Abstract: Luggage having an angularly retractable handle includes: a main body; a mounting plate, positioned at a front wall of the main body; a pivot, positioned at the mounting wall; an angularly retractable handle, connected to the mounting plate by the pivot, wherein the angularly retractable handle rotates with respect to the front wall of the main body via the pivot; a plurality of first wheel carriers, fixed on the bottom of the main body; a plurality of second wheel carriers, positioned on the bottom of the main body in a rotatable way; and at least four wheels, respectively assembled on the first wheel carriers and second wheel carriers.