发明名称 |
Self-propelled vacuum cleaner having forward and reverse drive |
摘要 |
A self-propelled vacuum cleaner having a transmission assembly that selectively drives the vacuum cleaner in both forward and reverse directions. The transmission arrangement includes a first stage of speed reduction in the coupling of a drive motor and a transmission input shaft interconnected by sprockets and a primary drive belt. A pinion on the input shaft drives one of a pair of meshed counter-rotating gears. A clutch/sprocket is associated with each of the counter-rotating gears and a belt couples both of these clutch/sprockets to a common sprocket which through associated elements drives the wheels of the appliance. The input pinion, counter-rotating gears, respective clutch/sprockets and common output sprocket all rotate about axes parallel to the motor shaft. An actuating mechanism selectively energizes one or the other of the clutch/sprockets for forward or reverse propulsion of the appliance.
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申请公布号 |
US5285550(A) |
申请公布日期 |
1994.02.15 |
申请号 |
US19920871021 |
申请日期 |
1992.04.20 |
申请人 |
THE SCOTT FETZER COMPANY |
发明人 |
MEYER, ROBERT B.;LACKNER, JOHN R.;MATUSCHEK, HANS J. |
分类号 |
A47L5/28;A47L9/00;B62B5/00;(IPC1-7):A47L5/28 |
主分类号 |
A47L5/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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