| 摘要 |
<p>The suction side of the blower (4) is provided with a suction pipe (3) leading to a suction foot (3a). The discharge side of the blower is connected to a container (8) by a pipe (5) and to a conduit (16) for blowing the leaves. A diverter valve (17) is located at the junction of pipe (5) and conduit (16). A valve may be provided to close the inlet at (3a). This valve may comprise two flaps (10, 12) which in the open position, hang vertically and are horizontal when closed.</p> |
