Self-propelled vacuum cleaner having forward and reverse drive

Details Self-propelled vacuum cleaner having forward and reverse drive Self-propelled vacuum cleaner having forward and reverse drive

1992-04-20

1994-02-15

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15329, 153402, 180 193, A47L 528

Patent

active

052855503

ABSTRACT:
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.

REFERENCES:
patent: 2814063 (1957-11-01), Ripple
patent: 2950772 (1960-08-01), Dostal et al.
patent: 3218876 (1965-11-01), Berger
patent: 3451495 (1969-06-01), Bayless et al.
patent: 3618687 (1971-11-01), Ripple et al.
patent: 4249281 (1981-02-01), Meyer et al.
patent: 4347643 (1982-09-01), Bair
patent: 4434865 (1984-03-01), Tschudy et al.

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