Mechanism for moving a wiping/raising insert of a suction nozzle for a vacuum cleaner

• US 20050262659A1
• Filed: 05/31/2005
• Published: 12/01/2005
• Est. Priority Date: 05/28/2004
• Status: Active Grant

• Current Assignee: New Ermes Europe SPA
• Original Assignee: New Ermes Europe SPA
• Inventors: Roschi, Ermes, Roschi, Riccardo
• Granted Patent: US 7,797,793 B2
• Time in Patent Office: Days
• US Class Current: 15/368
• CPC Class Codes: A47L 9/06 with fixed, e.g. adjustably fixed brushes or the like
• CPC Class Codes: A47L 9/0653 with mechanical actuation, e.g. using a lever

Abstract

An improved mechanism for moving a wiping/raising insert of a suction nozzle for a vacuum cleaner is described. The suction nozzle comprises a base plate. The mechanism for moving the insert comprises an operating pedal and a frame for supporting the insert and for bringing this insert from a first working position into a second rest position. The pedal is rotatable about a first axis of rotation and the frame is rotatable about a second axis of rotation. According to the invention, the first and the second axis of rotation lie in a plane inclined at an angle a ranging between 80° and 100° with respect to a plane of the base plate.

Claims

1. Improved mechanism for moving a wiping/raising insert of a suction nozzle for a vacuum cleaner or the like, the suction nozzle comprising a base plate, said mechanism for moving the insert comprising an operating pedal and a frame for supporting the insert and for bringing this insert from a first working position into a second rest position, said pedal being rotatable about a first axis of rotation and said frame being rotatable about a second axis of rotation, characterized in that said first axis of rotation and said second axis of rotation lie in a plane inclined at an angle ranging between 80°

and 100°

with respect to a plane of the base plate.

2. Mechanism according to claim 1, characterized in that the plane in which the first and the second axes of rotation lie is inclined at an angle of about 90°

with respect to a plane of the base plate.

3. Mechanism according to claim 1, characterized in that the pedal is connected to a first rotational shaft and said first rotational shaft comprises at least one projecting tongue, preferably a pair of projecting tongues.

4. Mechanism according to claim 3, characterized in that said projecting tongues have a thickness which tapers towards the free end and have a terminal edge.

5. Mechanism according to claim 4, characterized in that the terminal edge of each tongue comprises at least one terminal edge protuberance, typically two or three equidistant protuberances, so as to offer a reduced terminal edge surface area.

6. Mechanism according to any one of claims 1, characterized in that said frame comprises a guide inside which the insert is seated, a second rotational shaft, brackets for connecting said second shaft to said guide and at least one engaging surface able to cooperate with said at least one tongue.

7. Mechanism according to claim 6, characterized in that two engaging surfaces are envisaged for cooperating with two corresponding tongues.

8. Mechanism according to claim 7, characterized in that each engaging surface extends between two brackets.

9. Mechanism according to claim 1, characterized in that said frame comprises holed plates cooperating with centring pin of the base plate.

10. Mechanism according to claim 9, characterized in that it comprises resilient members cooperating with said centring pins and with said holed plates, in order to keep said insert raised in its rest position.

11. Mechanism according to claim 6, characterized in that said second shaft of the frame comprises two shaft sections.

12. Mechanism according to claim 11, characterized in that the first and the second shaft are pivotably mounted in respective holes formed in pillars on the base plate, said second shaft being also pivotably mounted on further intermediate supports.

13. Mechanism according to claim 3, characterized in that the first shaft is substantially in the form of a cam shaft with a central crank.

14. Suction nozzle for a vacuum cleaner or the like, characterized in that it comprises a mechanism for moving a wiping/raising insert according to claim 1.