| 摘要 |
The invention consists of an eraser crumb suction device. There are two embodiments of the device. The first includes a rotary-driven eraser stick (32) driven by a motor (24) which also drives a fan (18). A suction tube (12) surrounds the eraser and leads to a container (14) for collecting the crumbs. In the container (14) is a baffle (16) for removing crumbs from the air flow leading to the fan (18) in its enclosure (20) which has outwardly-directed exhaust openings (22). The second embodiment comprises a holder (52) for an eraser mounted parallelly with a suction tube (54) which leads to a collecting container (60) with baffle (62). An inlet pipe (66) connects container (60) to fan enclosure (68) containing a fan (64) driven by a DC motor (72) driven by batteries in an adjacent battery compartment (76). The device is configured to be held in the manner of a writing pen. A brush (56) is mounted adjacent the inlet of the suction tube (54). |
