1 results about "Rigid spine" patented technology

A loose-leaf notebook, comprising a front cover plate (1), a rear cover plate (2), a flexible-rigid spine (3), and a binder (4). The flexible-rigid spine (3) comprises a rigid spine body (3-2) and flexible hinge bodies (3-3). The two sides of the rigid spine body (3-2) are each provided with one flexible hinge body (3-3), and the two flexible hinge bodies (3-3) are respectively connected to the front cover plate (1) and the rear cover plate (2). The flexible-rigid spine (3) combines flexible and rigid materials, allowing for easy unfolding or folding, so that the loose-leaf notebook of the present application can be opened or closed smoothly and without obstruction. Moreover, the front cover plate (1) and the rear cover plate (2) can be fully flattened when opened, and can be neatly folded when closed. When the loose-leaf notebook is closed, the rigid spine body (3-2) is supported between the front cover plate (1) and the rear cover plate (2), so that the front cover plate (1), the rear cover plate (2), and the rigid spine body (3-2) form a stable three-sided structure, enabling the loose-leaf notebook to stand vertically on a desktop, facilitating vertical storage of the loose-leaf notebook.