Patent ID: 8960740
Filing Date: 2015-02-24
Classification: E05B,Y10T

Abstract:
1. A shell assembly comprising: a rectangular-shaped first shell having at least one elastic joint component securely formed on a side face of the first shell and a cavity defined therein, where the side face has at least one protruding component, wherein the joint component is composed of a first plate, a second plate formed with the first plate and an arc extending from the second plate; and a disc-shaped second shell received in the cavity of the first shell and having a surrounding ring formed with at least one concavity defined on a peripheral edge thereof to correspond to and partially receive and engage therein the joint component, at least one aperture defined on the second shell to correspond to and receive the protruding component of the first shell, wherein the second shell has at least one guiding element formed on a side opposite to the peripheral edge, which is defined to correspond to the joint component of the first shell, and the concavity is defined near a distal end of the guiding element to facilitate the arc of the joint component to engage with the concavity under guidance of the guiding element, such that the first shell and the second shell are separably connected together due to the resilience provided by the joint component.