Suction brush for vacuum cleaner

• US 20080295270A1
• Filed: 10/19/2007
• Published: 12/04/2008
• Est. Priority Date: 05/28/2007
• Status: Abandoned Application

• Current Assignee: Samsung Gwangju Electronics Co., Ltd. (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Gwangju Electronics Co., Ltd. (Samsung Electronics Co. Ltd.)
• Inventors: Lee, Hyun-Ju
• Application Number:
  US11/975,413
• Publication Number:
  US 20080295270A1
• Time in Patent Office: Days
• US Class Current: 15/184
• 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 9/0653 with mechanical actuation, e.g. using a lever
• CPC Class Codes: A47L 9/0666 with tilting, floating or similarly arranged brushes, combs, lips or pads

Abstract

A suction brush for a vacuum cleaner includes blocking members mounted front and rear, to a brush body bottom surface to seal off the periphery of a suction inlet formed thereon and to generate a high suction force between a surface to be cleaned and the suction inlet during cleaning, wherein the front blocking member is pivotably mounted to the brush body when one end thereof is connected thereto, and includes blocking arms to maintain the high suction force between the suction inlet and the surface to be cleaned while being alternately brought into close contact therewith when the brush body moves forwards or backwards; and the first blocking arm includes a plurality of air suction apertures to restrict passage of air flowing into the suction inlet while the first blocking arm is in close contact with the surface to be cleaned when the brush body moves forwards.

Claims

1. A suction brush for a vacuum cleaner, comprising:

a front blocking member and a rear blocking member mounted in a front portion and a rear portion, respectively, of a bottom surface of a brush body to seal off a periphery of a suction inlet formed on the bottom surface of the brush body and to generate a high suction force between a surface to be cleaned and the suction inlet during cleaning, wherein the front blocking member is pivotably mounted on the brush body when one end thereof is connected to the brush body; and

a first blocking arm and a second blocking arm to maintain the high suction force between the suction inlet and the surface to be cleaned while being alternately brought into close contact with the surface to be cleaned when the brush body moves forwards or backwards, wherein the first blocking arm comprises a plurality of air suction apertures to restrict passage of air flowing into the suction inlet while the first blocking arm is in close contact with the surface to be cleaned when the brush body moves forwards.

2. The suction brush as claimed in claim 1, wherein a blocking member is capable of being raised or lowered relative to the surface to be cleaned.

3. The suction brush as claimed in claim 2, wherein the brush body is raisably and lowerably mounted in the suction brush, and comprises a moving plate in which the front and rear blocking members are mounted.

4. The suction brush as claimed in claim 3, further comprising a plunger member comprising:

a button unit exposed on the brush body;

a first pressure tab and a second pressure tab to transfer a pressurizing force from the button unit to the moving plate if a user pushes a front portion or a rear portion of the button unit; and

a rotation shaft which is rotatably mounted widthwise within the brush body,

wherein the button unit is disposed integrally with one side of the rotation shaft, and the first and second pressure tabs protrude at the same angle from opposite sides of the rotation shaft.

5. The suction brush as claimed in claim 2, further comprising a first wheel and a second wheel which are rotatably engaged with opposite ends of the bottom surface of the brush body and are rested on the surface to be cleaned when the front and rear blocking members are lowered, so that the brush body moves smoothly, against the suction force, over the surface to be cleaned.

6. The suction brush as claimed in claim 1, wherein the first and second blocking arms are made of soft materials in order to increase the adhesion between the surface to be cleaned and the first and second blocking arms.

7. A suction brush comprising

a brush body;

a suction inlet disposed on a bottom surface of the brush body; and

a blocking member mounted to, and disposed about a bottom surface of, the brush body.

8. The suction brush as claimed in claim 7, wherein the blocking member is pivotably mounted to the brush body and disposed about a bottom surface of the brush body;

and wherein

the blocking member comprises a plurality of blocking arms.

9. The suction brush as claimed in claim 8, wherein

the plurality of blocking arms are capable of assuming positions relative to the brush body and relative to a surface over which the brush body travels, according to the direction of travel of the brush body over the surface, and wherein

assumption of the positions by the blocking arms prevents reduction of a suction force at a periphery of the suction inlet.

10. The suction brush as claimed in claim 9, wherein

assumption of the positions by the blocking arms is capable of regulating the suction force at the periphery of the suction inlet.

11. The suction brush as claimed in claim 8, wherein

the blocking member can be configured by a user to permit modulation of a suction force around a periphery of the suction inlet.