Vacuum cleaner nozzle for floors and carpets

• US 7,251,856 B2
• Filed: 02/13/2004
• Issued: 08/07/2007
• Est. Priority Date: 02/20/2003
• Status: Active Grant

• Current Assignee: Wessel-Werk GmbH & Co. KG
• Original Assignee: Wessel-Werk GmbH & Co. KG
• Inventors: Kaffenberger, Dieter, Lind, Thomas
• Primary Examiner(s): Till; Terrence R.
• Application Number:
  US10/778,976
• Publication Number:
  US 20040216267A1
• Time in Patent Office: 1,271 Days
• Field of Search: 153/67, 153/68, 153/69, 153/73, 153/93, 154/01, 154/02
• US Class Current: 15/373
• 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

A vacuum cleaner nozzle for floors and carpets having a housing comprised of an upper part and a slide sole, a pivotable rocker located in the housing on a rear segment in working direction and an actuating lever to operate the rocker. Strip-shaped gasket elements are attached to the rocker, which are arranged in working direction in front of and behind a suction port formed into the slide sole and can be retracted and moved out of openings on the lower side of the housing with a pivoting movement of the rocker.

Claims

1. A vacuum cleaner nozzle for floors and carpets, comprising:

a housing comprised of an upper part and a slide sole;

a pivotable rocker located inside the housing on a rear segment in a working direction;

an actuating lever to operate the rocker; and

strip-shaped gasket elements arranged in a working direction in front of and behind a suction port formed in the slide sole, said gasket elements being adapted to be retracted and moved out of openings at a lower side of the housing with a swivel motion of the rocker, wherein the rocker is comprised of a pin-jointed frame plastic molding having a rod with cylindrical bearing surfaces and parallel profile strips to fasten the gasket elements as well as cross-members that connect the rod and the profile strips, and wherein the cross-members are arranged on both sides of a suction channel that runs inside of the housing to an opening in the suction port.

2. The vacuum cleaner nozzle according to claim 1, wherein the rocker is guided on pivots that extend from the slide sole to the upper part of the housing and brace the housing.

3. The vacuum cleaner nozzle according to claim 2, wherein the rocker is supported on return springs that are arranged on the pivots.

4. The vacuum cleaner nozzle according to claim 1, wherein the rocker has two crossmembers on each side of the suction channel, with the actuating lever dipping into a free space between adjacent cross-members and wherein there are contact surfaces of the rocker arranged between the crossmembers that also cooperate with the actuating lever.

5. The vacuum cleaner nozzle according to claim 1, wherein the actuating lever is comprised of a pivotable shaft, at least one actuating surface developed as an impact switch, and formed cam lobes, said cam lobes acting on an assigned contact surface of the rocker.