| 摘要 |
<p>A hand-held vacuum cleaner (10) includes a housing, (12,26,28) a source of vacuum (16,18,20), a hose (22) removably connected to an intake section (32,38) of the housing, a rotatably driven brush (24,70) located at the intake section, and a system (102) automatically to stop the brush from being driven when the hose is disconnected from the intake section. The hose (22) is located on an exterior of the housing and connects the intake section (32,38) to the source of vacuum (16,18,20). The hose is flexible and expandable with a relatively compact, free-standing, curved shape when connected between the intake section and the source of vacuum, but can be expanded in general accordion-like fashion when the hose is removed from the intake section to expand to about four times its compact length. The system (102) to stop the brush automatically can also automatically re-engage (104,108,114,115,124) driving of the brush when the hose is reconnected to the intake section.</p> |
