| 摘要 |
<p>The bracket (1) has two opposite clamping portions (2) each provided with a narrow end (2a) and a wide end (2b). The clamping portions are spaced at the wide ends for receiving two backlash building blocks, respectively. A bar portion (3) is connected at the narrow ends. The bar portion includes projections (6) at ends, where the projections are projected into the narrow ends. The clamping portions comprise two wing areas (4) that exhibit an angle (beta) of about 90 degree. The clamping portions are made up of thermoplastic elastomer, and the bar portion is made of polyamide or nylon. An independent claim is also included for a kit i.e. ball trajectory, with backlash building blocks i.e. timber backlash blocks.</p> |
