| 摘要 |
<p>A toy building set consists of a number of flat plates (5), angle elements (2) and a driving motor (3). The plates (5) have holes to receive pegs (6) projecting from the surface of the angle element (2). One of these pegs is elongated with a threaded portion (9) to receive a nut (10). The inner face of the horizontal arm (4) of the angle (2) and the outer face of the vertical arm have three grooves to receive matching tongues from other building elements. These grooves give a wide choice of areas for fixing the driving motor (3).</p> |
