Vacuum cleaner nozzle

• US 3,952,363 A
• Filed: 11/04/1974
• Issued: 04/27/1976
• Est. Priority Date: 11/08/1973
• Status: Expired due to Term

• Current Assignee: Aktiebolaget Electrolux
• Original Assignee: Aktiebolaget Electrolux
• Inventors: Lindman, Fred Henry
• Primary Examiner(s): Gilreath, Stanley N.
• Assistant Examiner(s): Moore, C. K.
• Application Number:
  US05/520,668
• Time in Patent Office: 540 Days
• Field of Search: 15/355, 15/365, 15/368, 15/371, 15/373
• 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 having an internal brush which is selectively elevated from or lowered to rug engaging position. The actuating means for the brush constitutes two operating devices located, as viewed from the operator, on the left hand side of the nozzle housing and accessible from the exterior thereof. The operating devices are connected to cam members in the form of rollers which co-act with the brush support to effect the vertical movement of the brush.

Claims

1. A vacuum cleaner nozzle provided with a spring-urged brush that is movable from a first position in engagement with the surface to be cleaned to a second position out of engagement with said surface to be cleaned and vice-versa comprising;

a housing, means at the bottom of said housing for confining said brush in said housing but permitting limited movement therein, a cam device including spaced, pivotable roller members, a bracket interconnecting said roller members, said brush including a plate provided with brush bristles, the upper surface of said plate being provided with spaced, shaped shoulder elements that are each adapted to be engaged by a corresponding roller member, said shoulder elements being part of said cam device, linking means joining each roller to said nozzle, the linking means of one of said rollers having an arm provided with a first foot actuated operating means for moving said roller members on said shaped shoulders whereby said brush is moved to a selected position in which a portion thereof projects outside of said housing, and a second foot actuated operating means accessible from the outside of said housing acting upon an inner part of the linking means for moving said roller members on said shaped shoulders whereby said brush is moved to another position located within the interior of said housing.

2. A nozzle as claimed in claim 1, wherein said first operating means is located in close proximity to said second operating means.

3. A nozzle as claimed in claim 1, wherein both said first and second operating means are located on the left hand side of said nozzle upon being viewed by the user when the nozzle is an active condition engaging the surface to be cleaned.

4. A nozzle as claimed in claim 1 further comprising a U-shaped member functioning as a limiting stop for said second operating means, said first operating means having oppositely disposed journals, the legs of said U-shaped member having recesses which act as bearing surfaces for the journals of said first operating means.

5. A nozzle as claimed in claim 4 further comprising an helical spring clamped between said U-shaped member and said second operating means for urging at least a part of the latter outside of said nozzle.

6. A nozzle as claimed in claim 1, wherein said second operating means includes a generally horizontal portion having two spaced plates extending vertically downwardly from said horizontal portion in the interior of said housing which engages said inner part of the linking means when said horizontal portion is depressed a predetermined distance.

7. A nozzle as claimed in claim 1, wherein each of said shoulder elements has a flat top surface and a connected sloping surface, a cavity adjacent to the bottom of said sloping surface, each of said roller members in one position of said brush engaging an adjacent flat top surface, and in the other position of said brush being rolled down said sloping surface into an adjacent cavity.

8. A nozzle as claimed in claim 1, wherein said bracket is U-shaped, and one of the legs of said bracket additionally functioning as the central shaft for one of said roller members, while a second leg additionally functions as the central shaft for a second one of said roller members.