Cord saver rib

Patent metadata

Field	Value
Publication number	US-12539005-B2
Application number	US-202319108953-A
Country	US
Kind code	B2
Filing date	Sep 21, 2023
Priority date	Sep 23, 2022
Publication date	Feb 3, 2026
Grant date	Feb 3, 2026

Abstract

A vacuum cleaner including a surface cleaning head having a brushroll rotatable about an axis defining an axial direction, and a brushroll housing at least partially surrounding the brushroll. The brushroll housing includes an outlet port disposed at a first axial location, and a bottom housing. The bottom housing includes a front wall, a rear wall spaced from the front wall to define the suction inlet, and at least one rib disposed below the brushroll and extending across the suction inlet between the front and rear walls. Each rib includes a forward portion connected to the front wall, a rearward portion connected to the rear wall, and a central portion extending linearly orthogonal to the axial direction between the forward and rearward portions. The rearward portion is turned toward the first axial location of the outlet port to define a flow guide.

First claim

What is claimed is:

1 . A vacuum cleaner comprising:
a suction motor operable to move working air through a working air flow path from a suction inlet to a clean air outlet; a dirt separator located along the working air flow path to separate dirt from the working air; and a surface cleaning head including
a brushroll, having a body, rotatable about an axis defining an axial direction, a brushroll housing at least partially surrounding the brushroll and having an outlet port along an axial direction of the brushroll housing, and a bottom housing provided on the bottom of the brushroll housing, the bottom housing including a front wall, a rear wall spaced from the front wall to define the suction inlet, and at least one rib disposed below the brushroll body and extending across the suction inlet between the front and rear walls, wherein the at least one rib includes a forward portion connected to the front wall, a rearward portion connected to the rear wall and angled only toward the outlet port to define a flow guide, and a central portion extending orthogonal between the forward and rearward portions that connect the front and rear walls.

2 . The vacuum cleaner of claim 1 , wherein the at least one rib includes a thickness and a height that is greater than the thickness.

3 . The vacuum cleaner of claim 2 , wherein the height is greater than 3 mm.

4 . The vacuum cleaner according to claim 1 , wherein the rearward portion is angled between 30 and 60 degrees relative to the central portion.

5 . The vacuum cleaner of claim 4 , wherein the rearward portion is angled between 40 and 50 degrees.

6 . The vacuum cleaner according to claim 1 , further comprising a first axial location, wherein the first axial location is not centered on the brushroll housing along the axial direction.

7 . The vacuum cleaner according to claim 1 , wherein the rearward portion includes a rear end that slopes downwardly toward the rear wall.

8 . The vacuum cleaner of claim 7 , wherein the forward portion includes a front end that slopes downwardly toward the front wall.

9 . The vacuum cleaner according to claim 1 , wherein a top surface of the rear wall is sloped upwardly away from the suction inlet.

10 . The vacuum cleaner according to claim 1 , wherein a portion of a top surface of the front wall is sloped downwardly toward the suction inlet.

11 . The vacuum cleaner according to claim 6 , wherein the at least one rib includes a first rib located on a first axial side of the first axial location and a second rib located on a second axial side of the first axial location, wherein the second rib includes a forward portion connected to the front wall, a rearward portion connected to the rear wall and turned only toward the first axial location of the outlet port to define a flow guide.

12 . The vacuum cleaner of claim 11 , wherein the first and second ribs are mirror images of each other.

13 . The vacuum cleaner according to claim 11 , wherein the rearward portion of the first rib and the rearward portion of second rib are angled toward each other.

14 . The vacuum cleaner according to claim 11 , wherein the at least one rib includes a third rib located on the second axial side of the first axial location, wherein the third rib includes a forward portion connected to the front wall, a rearward portion connected to the rear wall and angled only toward the outlet port to define a flow guide.

15 . The vacuum cleaner of claim 14 , wherein the rearward portions of the second and third ribs are parallel.

16 . The vacuum cleaner according to claim 14 , wherein the surface cleaning head includes a brushroll belt positioned at a second axial location, and wherein the second and third ribs are located on opposite sides of the second axial location.

17 . The vacuum cleaner according to claim 1 , wherein each rib of the at least one rib includes a downwardly curved portion for accommodating the brushroll.

18 . The vacuum cleaner according to claim 1 , wherein the brushroll housing includes a top housing coupled to the bottom housing to at least partially surround the brushroll, wherein the outlet port is positioned along a rearward wall of the top housing.

19 . The vacuum cleaner according to claim 1 , wherein the bottom housing is integrally molded as a single piece including the front wall, rear wall, and the at least one rib.

20 . A vacuum cleaner comprising:
a suction motor operable to move working air through a working air flow path from a suction inlet to a clean air outlet; a dirt separator located along the working air flow path to separate dirt from the working air; and a surface cleaning head including
a brushroll, having a body, rotatable about an axis defining an axial direction, and a brushroll housing at least partially surrounding the brushroll and having an outlet port along an axial direction of the brushroll housing, and a bottom housing provided on the bottom of the brushroll housing, the bottom housing including a front wall, a rear wall spaced from the front wall to define the suction inlet, and first and second ribs disposed below the brushroll body and extending across the suction inlet between the front and rear walls, wherein each of the first and second ribs includes a forward portion connected to the front wall, a rearward portion connected to the rear wall and angled only toward the outlet port to define a flow guide, and a central portion extending orthogonal between the forward and rearward portions that connect the front and rear walls, wherein the first rib is located on a first side of the axial direction of the brushroll housing and the second rib located on a second side of the axial direction of the brushroll housing.

21 . The vacuum cleaner of claim 20 , wherein the first and second ribs are mirror images of each other.

22 . The vacuum cleaner according to claim 20 , wherein the rearward portion of the first rib and the rearward portion of second rib are angled toward each other.

23 . A surface cleaning head comprising: a brushroll, having a body, rotatable about an axis defining an axial direction; and a brushroll housing at least partially surrounding the brushroll and having an outlet port along an axial direction of the brushroll housing, and a bottom housing provided on the bottom of the brushroll housing, the bottom housing including a front wall, a rear wall spaced from the front wall to define the suction inlet, and a plurality of ribs disposed below the brushroll body, wherein each rib of the plurality of ribs includes a central portion extending orthogonal to the axis across a suction inlet between the front wall and the rear wall, and a flow guide angled only to direct working air toward the outlet port.

Assignees

• Techtronic Floor Care Tech Ltd

Inventors

• Morphey John
• Kowalski Gregory J

Classifications

• A47L9/0444

  for conveying motion by endless flexible members, e.g. belts · CPC title

• A47L9/0477 Primary

  Rolls · CPC title

• A47L9/04 Primary

  with driven brushes or agitators · CPC title