| 摘要 |
<p>A disc (10) captively mounted between two elements (12,14) for rotation therebetween and a blank (22) and method for manufacturing the same. The disc (10) is attached at a peripheral portion thereof to one of the elements (12,14) by a frangible connection, the breaking of which allows the disc to rotate. The blank (22) is in the form of a single piece, three portion (40,42,44) foldable sheet. The first portion (40) forms a front element (12), a second portion (42) forms a back element (14) and a third portion (44) comprises the disc (10) frangibly connected to two spacer portions (24). The blank is folded so that the third portion (44) overlies the second portion (42) and again so that the first portion (40) overlies the third portion (44). The folded blank (22) is glued together at the spacer portions (24). <IMAGE></p> |
