| 摘要 |
<p>A mobile-plate assembly (13÷15) for an adjustable reduction window (12) having longitudinal and cross edges, suitable for supporting sheets of different sizes of thermoplastic material in a thermoforming station. The plate assembly comprises a steady front bar member (14), first (13A) and second (13B) side plates slidably supported in the longitudinal direction of the window (12), coplanar to the steady front bar member (14), and a rear plate (15) slidably supported in a cross direction on a plane parallel to the side plates (13A, 13B). The rear plate (15) is provided with a second bar member (17, 18) which extends parallel to the rear edge of the window (12); the second bar member (17, 18) is removably connected to the rear plate (15), coplanar to the front bar member (14) and the two side plates (13A, 13B).</p> |
