| 摘要 |
<p>The invention provides an improved toy building element (10) having at least one protuberance (15) on its planar upper face (11), the protuberance (15) having a ridge (18) extending circumferentially therearound, and at least one downwardly opening cavity (21) on the underside of the element, each cavity (21) having an internal circumferential groove (20), and convexly curved end walls (14), arranged and constructed so that when two like elements are to be joined together the or each protuberance (15) is press fitted within a respective cavity (21) with the ridge (18) engaging within an associated groove (21) to thereby interlock the elements together, the elements, when thus interlocked, being able to swivel relative to one another.</p> |
