VACUUM CLEANER BRUSHROLL

• US 20120204367A1
• Filed: 02/15/2011
• Published: 08/16/2012
• Est. Priority Date: 02/15/2011
• Status: Active Grant

• Current Assignee: The Scott Fetzer Company (Berkshire Hathaway Incorporated)
• Original Assignee: The Scott Fetzer Company (Berkshire Hathaway Incorporated)
• Inventors: Stegens, Eric A.
• Granted Patent: US 8,826,493 B2
• Time in Patent Office: Days
• US Class Current: 15/88.4
• CPC Class Codes: A46B 13/001 Cylindrical or annular brush bodies
• CPC Class Codes: A46B 15/0053 Brushes fitted with ventilation suction, e.g. for removing dust vacuum cleaner A47L7/00
• CPC Class Codes: A47L 9/0427 Gearing or transmission means therefor

Abstract

A shaft driven vacuum cleaner brushroll that can be mounted in the nozzle of the vacuum cleaner and directly connected to a shaft of the cleaner'"'"'s motor drive shaft system. The brushroll features a two-piece drive assembly that simplifies its manufacture and can be engaged on a wood spindle to effectively transmit torque from the vacuum cleaner drive to the brushroll.

Claims

1. A shaft driven brushroll that can be directly connected to a motor drive shaft system of a vacuum cleaner comprising:

(a) a spindle,

(b) a ferrule on one end of said spindle,

(c) a drive pin inserted through said ferrule into said spindle, said drive pin being constructed to connect directly to a shaft of said motor drive shaft system, and,

(d) bristle tufts projecting from said spindle.

2. A shaft driven brushroll as claimed in claim 1 wherein said ferrule has a skirt embracing said one end of said spindle with some of said bristle tufts extending out through said skirt.

3. A shaft driven brushroll as claimed in claim 1 wherein said drive pin and said ferrule have corresponding engaging surfaces that lock said drive pin and ferrule together as a single unit.

4. A shaft driven brushroll as claimed in claim 3 wherein said surfaces are cam surfaces extending axially radially inwardly of said drive pin and ferrule.

5. A shaft driven brushroll as claimed in claim 1 wherein said drive pin has a bayonet slot engageable with a shaft pin of said vacuum cleaner motor drive shaft system.

6. A shaft driven brushroll that mounts in a vacuum cleaner and is rotated by direct connection to a shaft of the motor drive shaft system of said vacuum cleaner, said brushroll comprising:

(a) a spindle,

(b) a ferrule at one end of said spindle, said ferrule having a skirt around said spindle and a portion seated in said one end, whereby said spindle is captured between said skirt and said ferrule portion,

(c) a drive pin inserted through said ferrule into said one end of said spindle, said drive pin having a slot forming a quick connect-disconnect for locking said drive pin to a driver shaft of the motor drive shaft system of said vacuum cleaner,

(d) said ferrule and said drive pin have coacting surfaces that lock the two members together, whereby torque is transmitted through said drive pin to rotate said spindle, and

(e) bristle tufts projecting out from said spindle with some of said tufts extending through said ferrule skirt.

7. A shaft driven brushroll that can be mounted in the nozzle of a vacuum cleaner nozzle and connected directly to the vacuum cleaner motor drive shaft system, said brushroll comprising:

(a) a spindle having a hole drilled in one end and a recess forming an end opening for said hole,

(b) a ferrule having a skirt embracing said end of said spindle, a neck seated in said recess to capture said spindle end between said skirt and said neck, and cam surfaces on the inside of said neck extending axially radially inwardly of said neck,

(c) a drive in having a shaft end pressed through said ferrule into said hole, and a head having cam surfaces engaging said cam surfaces of said neck, and a bayonet slot for receiving a shaft pin of said vacuum cleaner motor drive shaft system.

(d) bristle tufts extending from said spindle with some of said tufts projecting through said skirt, and

(e) a bearing end assembly at the other end of said spindle.

8. A brushroll as claimed in claim 7 wherein said spindle is wood.