Importance

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Abstract

A vacuum cleaner main cleaning chassis has a pair of suction air channels leading from a principal suction area thereof. Suction force is provided in common in the air channels with a single suction motor. One of the suction air channels is adapted to receive an auxiliary cleaning hose which diverts the suction force in such air channel into the auxiliary hose. During such auxiliary cleaning, increased suction force may be created in the auxiliary hose by closing off air flow in the other suction air channel, which relieves part of the load on the common suction motor. Such relief results in increased rotational speed of the motor, which in turn correspondingly increases the suction air flow in the air channel associated with the auxiliary hose. In an upright vacuum cleaner, such close-off is accomplished by pivoting the handle and dirt bag carried thereon into an upright position so that a relatively rigid portion of the bag engages against an extended exhaust port corresponding with the suction air channel in which air flow is to be interrupted. The exhaust port corresponding with the air channel in which the auxiliary hose is interposed is not similarly extended, so that auxiliary suction air flow continues unimpeded even when the control handle and bag carried thereon are pivoted into an upright position. The resulting boost in suction air force in the auxiliary hose provides for improved auxiliary cleaning performance.

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First Claim