Brush assembly of a vacuum cleaner

• US 20010032371A1
• Filed: 12/13/2000
• Published: 10/25/2001
• Est. Priority Date: 04/24/2000
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Jung-Seon
• Granted Patent: US 6,381,802 B2
• Time in Patent Office: Days
• US Class Current: 15/325
• CPC Class Codes: A47L 5/30 with driven dust-loosening tools, e.g. rotating brushes
• CPC Class Codes: A47L 9/009 Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles
• CPC Class Codes: A47L 9/06 with fixed, e.g. adjustably fixed brushes or the like
• CPC Class Codes: A47L 9/062 Rigidly anchored edge brushes

Abstract

A brush assembly for a vacuum cleaner includes a brush cover; a brush base connected to the brush cover, a rotary drum disposed between the brush cover and the brush base, and an edge brush integrated bumper. The edge brush integrated bumper is mounted around a joint surface between the brush cover and the brush base. The edge brush integrated bumper includes a pair of edge brush portions integrally formed with the bumper. Each edge brush portion corresponds to a side of the brush cover and brushes off dust that is not accessible to the rotary drum. The brush assembly further includes assembling position guide means and fixing means for securing bumper to the brush cover. Since the bumper and edge brushes are integrally formed in an injection molding process, the number of separate parts to the brush assembly is reduced. Also, since the bumper and edge brushes can be assembled simultaneously, productivity is increased as assembly time is decreased.

Claims

1. A brush assembly for a vacuum cleaner comprising:

a cover;

a base connected to the lower surface of the cover;

a rotary drum rotatably disposed between the cover and the base, the rotary drum brushing off dust on a cleaning surface to facilitate suction of the dust on the cleaning surface into the vacuum cleaner; and

an edge brush integrated bumper mounted around a joint surface between the cover and the base, the bumper sealing the joint surface and protecting the brush cover and an external object when the brush assembly collides with the external object, the bumper having a pair of edge brush portions integrally formed with the bumper, each edge brush portion being located at a side of the brush cover, the edge brush portions brushing off dust on the cleaning surface that is not accessible to the rotary drum.

2. The brush assembly as claimed in

claim 1

, wherein the edge brush integrated bumper is injection molded using a soft synthetic resin, the soft synthetic resin of the bumper acting as a buffer.

3. The brush assembly as claimed in

claim 1

, further comprising:

assembling position guide means for guiding the edge brush integrated bumper to a precise location of the cover; and

fixing means for securing the edge brush integrated bumper to the cover.

4. The brush assembly as claimed in

claim 3

, wherein the assembling position guide means comprises:

a pair of position guide depressions formed in the edge brush portions of the edge brush integrated bumper; and

a pair of position guide elevations protruding from the sides of the brush cover, each position guide elevation corresponding with a respective position guide depression.

5. The brush assembly as claimed in

claim 4

, wherein each position guide depression is formed in an inner side of the respective edge brush portion;

and wherein each position guide elevation protrudes from an outer surface of the respective side of the cover.

6. The brush assembly as claimed in

claim 3

, wherein the fixing means comprises:

a pair of fixing bosses located on the edge brush integrated bumper, each fixing boss having a vertically extending throat part; and

a pair of fixing slots formed in the side of the cover, each fixing slot having a cutaway part for receiving a respective fixing boss.

7. A brush assembly for a vacuum cleaner comprising:

a cover;

a base coupled to the cover;

a rotary drum disposed between the cover and the base, the rotary drum rotating to brush off dust on a cleaning surface and facilitating suction of the dust into the vacuum cleaner; and

a bumper mounted around a joint surface between the cover and the base, the bumper including a plurality of edge brush portions integrally formed in the bumper, each edge brush portion being located at a side of the cover,

wherein the bumper is press fit into assembly with the cover.

8. The brush assembly as claimed in

claim 7

, wherein the bumper is injection molded using a soft synthetic resin.

9. The brush assembly as claimed in

claim 7

, further comprising:

assembly position guide means for guiding the bumper into position with the cover; and

fixing means for securing the bumper to the cover.

10. The brush assembly as claimed in

claim 9

, wherein the assembly position guide means comprises:

a plurality of guide depressions formed in the bumper; and

a plurality of position guide elevations extending from the cover, each position guide elevation corresponding with a respective guide depression.

11. The brush assembly as claimed in

claim 10

, wherein each guide depression is located on a respective edge brush portion of the bumper.

12. The brush assembly as claimed in

claim 9

, wherein the fixing means comprises:

a plurality of fixing bosses on the bumper; and

a plurality of fixing slots formed in the sides of the cover, each fixing slot corresponding to and receiving a respective fixing boss.