| 摘要 |
An improved electric eraser that prevents crumbs from scattering, confines them in a small area around the rotating eraser, and collects crumbs in a removal container simultaneously while erasing, consisting of a suction pipe to prevent crumbs from scattering, confine crumbs to a small area around the rotating eraser, and suck the crumbs; a removable container to collect the crumbs in; a baffle to deflect and force the crumbs to settle in the container; a centrifugal fan to produce suction; an enclosure for the centrifugal fan to provide an appropriate outlet area for the sucked air; an electric motor to run the centrifugal fan; a power means; and a switching means. The suction produced by the centrifugal fan forces and transports the eraser crumbs through the suction pipe to the baffle where the crumbs are deflected, lose the momentum, and are forced to settle in the removable container for final disposal.
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