Height adjusting apparatus for a vacuum cleaner nozzle
AssigneeElectrolux Home Care Products, Inc.
InventorsMichael Fowler, Zu Gen Ni
Life of this patent
Estimating the term…
Abstract
The invention discloses a height adjusting apparatus for a vacuum cleaner nozzle, comprising: a barrel with a vertical passage, a groove module is formed on the inner surface of the barrel, said groove module comprises an upper groove, a lower groove, which has at least a first positioning point, a second positioning point differing from first positioning point in height and a intermediate point between the two positioning points; a resilient member, a lifting member, a driven member and a driving member are arranged in the passage of barrel from down to up. The height adjusting apparatus could be adjusted by applying a pressure force downwardly in vertical direction (for example, press by foot) and that takes less labor and time.
Claims7
A vacuum cleaner nozzle comprising:
- a nozzle housing (10);
- a wheel carriage (10a) pivotally mounted to nozzle housing (10) for supporting said housing on a floor surface;
- a height adjusting apparatus attached to nozzle housing (10) and comprising:
- a barrel (1) attached to the truckle frame (10a) and having a vertical passage (2), at least one groove module (4) communicating with said vertical passage (2) and formed on an inner surface thereof, said groove module (4) having a first positioning point and a second positioning point which is different from said first positioning point in a height;
- an actuator member (8,9) disposed in vertical passage, having at least one rib (8a,9a) for corresponding with the groove module (4);
- a lifting member (7), which is disposed in the vertical passage (2) under the actuator member (8,9) and is adapted for lifting the nozzle housing (10);
- said lifting member is driven by said actuator member so as to hold the nozzle housing (10);
- and
- a resilient member (6), which is disposed under the lifting member (7) for supporting the lifting member (7);
- wherein when the actuator member (8,9) moves downwardly, said rib moves (8a) from the first positioning point to the second point along at least a spiral path and said nozzle housing returns to its original position after a circulation by pressing the actuator member repeatedly.
A vacuum cleaner nozzle comprising:
- a nozzle housing (10);
- a truckle frame (10a) pivotally mounted to nozzle housing (10) for supporting said housing on a floor surface;
- a height adjusting apparatus attached to nozzle housing (10) and comprising:
- a barrel (1) attached to the wheel carriage (10a) and having a vertical passage (2), a first and second groove modules (4) communicating with said vertical passage (2) and formed on an inner surface thereof, said first groove module spaced from and adjacent to the second groove module;
- an actuator member (8,9) disposed in vertical passage, having at least one rib (8a,9a) for corresponding with the groove modules (4);
- a lifting member (7), which is disposed in the vertical passage (2) under the actuator member (8,9) and is adapted for lifting the nozzle housing (10);
- said lifting member is driven by said actuator member so as to hold the nozzle housing (10);
- and
- a resilient member (6), which is disposed under the lifting member (7) for supporting the lifting member (7);
- wherein when the actuator member (8,9) moves downwardly, said rib moves (8a) from the first groove module to the second groove module and said nozzle housing returns to its original position after a circulation by pressing the actuator member repeatedly.
Dependencies are inferred from the claim text.