초록 ▼

A vacuum cleaner having a base adapted to be moved on a surface to be cleaned, an inlet nozzle disposed on a lower surface of the base, a vacuum source, and a dirt receptacle. A lower handle is pivotally attached to the base at a lower pivot, and an upper handle is pivotally attached to the lower ha

A vacuum cleaner having a base adapted to be moved on a surface to be cleaned, an inlet nozzle disposed on a lower surface of the base, a vacuum source, and a dirt receptacle. A lower handle is pivotally attached to the base at a lower pivot, and an upper handle is pivotally attached to the lower handle at an upper pivot. In one aspect, the vacuum cleaner includes an automatically-operated lower pivot lock that can restrict relative rotation between the lower handle and the base, and a manually-operated upper pivot lock that can restrict relative rotation between the upper handle and the lower handle. In another aspect, the vacuum cleaner includes a telescoping upper handle with electrical controls attached to the upper telescopic section of the upper handle. In still another aspect, the vacuum cleaner includes an exhaust vent located on an upwardly-facing surface of the base.

대표청구항 ▼

The invention claimed is: 1. A vacuum cleaner comprising:a base adapted to be moved on a surface to be cleaned;an inlet nozzle disposed on a lower surface of the base;a vacuum source operatively associated with the vacuum cleaner and adapted to draw a working airflow into the inlet nozzle;a dirt rec

The invention claimed is: 1. A vacuum cleaner comprising:a base adapted to be moved on a surface to be cleaned;an inlet nozzle disposed on a lower surface of the base;a vacuum source operatively associated with the vacuum cleaner and adapted to draw a working airflow into the inlet nozzle;a dirt receptacle operatively associated with the vacuum cleaner and adapted to remove dirt from the working airflow;a lower handle pivotally attached to the base at a lower pivot;an automatically-operated lower pivot lock including a locking member and a catch, the automatically-operated lower pivot lock having a first lower pivot lock position in which the lower pivot lock restricts relative rotation between the lower handle and the base, and a second lower pivot lock position in which the lower pivot lock does not restrict relative rotation between the lower handle and the base;an upper handle pivotally attached to the lower handle at an upper pivot; anda manually-operated upper pivot lock including a connecting member operably coupled with the lower pivot lock and a driving member operably coupled with the connecting member, the manually-operated upper pivot lock having a first upper pivot lock position in which the upper pivot lock restricts relative rotation between the upper handle and the lower handle, and a second upper pivot lock position in which the upper pivot lock does not restrict relative rotation between the upper handle and the lower handle;