| 摘要 |
<p>PURPOSE:To simplify assembly by constructing a hinge for rotatably coupling a lid to the box body by means of two fixed bases individually fixed to inner faces of the box body and the lid and a pair of link arms whose both ends are rotatably supported by a shaft on both fixed bases. CONSTITUTION:The opening face 2 of a box body 1 formed in a box by means of synthetic resin or the like is closed so that it can be freely opened and closed by a lid 3. The lid 3 is coupled to the box body so that it can vertically swing by a pair of hinges 4 placed on its one side. A first fixed base 31 with a horizontal cross section in an approximate U-shape is fixed to the inner face of the box body 1. A cup-like second fixed base 41 having an attaching piece 42 protruding toward both sides is fixed on the inner face of a lid 3, and coupled so that it can be freely swung and opened/closed with a pair of link arm 51, 52. The first link arm 51 is energized by a plate spring 61 and the second fixed base 41 is allowed to be held with the first fixed base 31 in a closed state and an opened state so as to constitute the hinge 4.</p> |
