POOL CLEANING BRUSH

• US 20080244843A1
• Filed: 04/02/2008
• Published: 10/09/2008
• Est. Priority Date: 04/03/2007
• Status: Active Grant

• Current Assignee: Smartpool Incorporated
• Original Assignee: Garden Pool Supplies Company Limited
• Inventors: HUI, Wing-kin, Hui, Fong-man
• Granted Patent: US 8,065,771 B2
• Time in Patent Office: Days
• US Class Current: 15/1.7
• CPC Class Codes: A46B 13/001 Cylindrical or annular brush bodies
• CPC Class Codes: A46B 13/02 power-driven carriers
• CPC Class Codes: A46B 3/22 rubber bristles being fixed in or on brush bodies
• CPC Class Codes: A46B 9/02 Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
• CPC Class Codes: E04H 4/1654 Self-propelled cleaners

Abstract

This invention discloses a roller brush used in swimming pool cleaner, including the roller body and the roller brush wrapped around the roller body. The inner side of roller brush in contact with the roller body outer surface. The roller body has a number of detent posts or grooves. The roller brush inner surface has a number of corresponding grooves or posts. Certain number of detent posts engages with grooves enable the roller brush and roller body positive interlock. For this reason, this roller brush invention allows positive and synchronize drive between roller body and roller brush, avoiding slipping drive. Moreover, this invention has simple construction, easy manufacture and assembly. This invention does not need to apply too much tension on the roller brush, reducing the flexible roller brush aging rate. It is therefore product life extended and maintenance cost lowered.

Claims

1. A swimming pool cleaner roller consists of roller body and roller brush which wraps around the roller body outside circumference, the roller brush inner surface in contact with roller body outside circumference, specifically, the roller body outer circumference has a number of detent post or detent groove, the roller brush inner surface has a number of corresponding detent groove or detent post, a number of the detent post engage a number of the detent groove to achieve interlock between the roller body and roller brush.

2. The roller according to claim 1 wherein the detent post and detent groove on roller body evenly or unevenly distributed.

3. The roller according to claim 1 wherein detent groove on roller brush inner surface or on roller body outside circumference and such detent groove is of through the thickness type.

4. The roller according to claim 1 wherein detent groove on roller brush inner surface or on roller body outside circumference and such detent groove is of non through the thickness type.

5. The roller according to either claim 1˜

4 wherein the roller body is made of rigid polymer or metal. The roller brush is made of elastomer.

6. The roller according to claim 1 wherein unfolded roller brush is of rectangular shape. Length of the unfolded roller brush matches the circumference of roller body so that roller brush wraps the roller body outside circumference. Besides, Both ends of the unfolded roller brush are detachably connected or permanently connected.

7. The roller according to claim 6 wherein one end of the roller brush has a number of buckles, another end has a number of corresponding button holes, a number of the buckle engage a number of the button hole to form an interlock.

8. The roller according to claim 6 wherein unfolded roller brush width close to the roller body cylindrical width so that the roller brush completely wraps the roller body outside circumference.

9. The roller according to claim 6 wherein unfolded roller brush width is less than the roller body cylindrical width so that the roller brush partially wraps the roller body outside circumference.

10. The roller according to claim 5 wherein the roller brush has a number of flexible brushes protrude out, the brush is evenly or unevenly distributed.