Grill assembly for a cyclone-type dust collecting apparatus for a vacuum cleaner

• US 20030159238A1
• Filed: 05/28/2002
• Published: 08/28/2003
• Est. Priority Date: 02/27/2002
• Status: Active Grant

• Current Assignee: Bissell Inc.
• Original Assignee: Bissell Homecare, Inc. (Bissell Inc.)
• Inventors: Oh, Jang-Keun
• Granted Patent: US 6,896,711 B2
• Time in Patent Office: Days
• US Class Current: 15/353
• CPC Class Codes: A47L 9/1666 with filtering means
• CPC Class Codes: B01D 45/16 generated by the winding course of the gas stream , the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
• CPC Class Codes: B04C 5/13 formed as a vortex finder and extending into the vortex chamber exits with bulkheads preventing reverse flow vortex B04C3/00; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow
• CPC Class Codes: Y10S 55/03 Vacuum cleaner

Abstract

A grill assembly for a cyclone-type dust collecting apparatus for a vacuum cleaner has a grill member having an air passage hole extending through a lower portion; a dust blocking member removably mounted on the grill assembly through the air passage hole of the grill member; and a fixing unit for removably fixing the dust blocking member with respect to the grill member. The grill member has a grill supporting portion supported on the air outlet, a conical grill and a cylindrical grill portion, all of which are integrally formed with each other. The dust blocking member has a connection member inserted and connected through the air passage hole of the cylindrical grill portion, and has a plurality of holes partitioned by a rib and interconnected with the air passage hole; and a dust blocking plate integrally formed with the connection member at a lower portion of the connection member. The dust blocking plate is spaced from the connection member by a predetermined distance. Since air is discharged through the air passage hole extending through the lower portion of the grill assembly, dust and foreign substances particularly adhere around the air passage hole. Accordingly, a user can remove the dust and foreign substances from the dust blocking member easily as he/she is simply required to separate the dust blocking member from the grill member. As a result, the cleaner is easy to use.

Claims

1. A grill assembly for a cyclone-type dust collecting apparatus for a vacuum cleaner, the grill assembly being disposed in an air outlet of a cyclone body for separating dust and foreign substances from contaminant-laden air, the grill assembly comprising:

a grill member having an air passage hole extending through a lower grill portion;

a dust blocking member removably mounted on the grill assembly through the air passage hole of the grill member; and

fixing means for removably fixing the dust blocking member with respect to the grill member.

2. The grill assembly of claim 1, wherein the grill member comprises a grill supporting portion supported on the air outlet, a conical grill and a cylindrical grill portion, all of which are integrally formed with each other, and the cylindrical grill portion having an air passage hole extending through a lower grill portion.

3. The grill assembly of claim 2, wherein the dust blocking member comprises:

a connection member inserted and connected to the cylindrical grill portion through the air passage hole of the cylindrical grill portion, and having a plurality of holes that are partitioned by a rib and interconnected with the air passage hole; and

a dust blocking plate integrally formed with the connection member at a lower portion of the connection member, the dust blocking plate being spaced from the connection member by a predetermined distance.

4. The grill assembly of claim 3, wherein the fixing means comprises:

a fixing groove portion having a pair of guiding grooves formed to be substantially opposite to each other in an inner circumference of the cylindrical grill portion, and a pair of fixing grooves extending from leading ends of the guiding grooves in a radial direction of the cylindrical grill portion and in opposite directions from each other; and

a fixing protrusion portion formed on an outer circumference of the connection member to mate with the guiding grooves and the fixing grooves of the fixing groove portion.

5. The grill assembly of claim 1, wherein the grill member comprises:

a conical grill portion;

a first cylindrical grill portion of a predetermined diameter; and

a second cylindrical grill portion of a diameter larger than the diameter of the first cylindrical grill portion,

the conical grill portion, the first cylindrical grill portion and the second cylindrical grill portion being integrally formed on the grill supporting portion that is supported on an air outlet, and

the second cylindrical grill portion having an air passage hole extending through a lower portion.

6. The grill assembly of claim 5, wherein the dust blocking member comprises:

a connection member inserted in and connected through the air passage hole of the second cylindrical grill portion, and having a plurality of holes that are partitioned by a rib and interconnected with the air passage hole; and

a dust blocking plate integrally formed with the connection member and located at a lower portion of the connection member, the dust blocking plate being spaced from the connection member by a predetermined distance.

7. The grill assembly of claim 6, wherein the fixing means comprises:

a fixing groove portion having a pair of guiding grooves formed to be substantially opposite to each other in an inner circumference of the second cylindrical grill portion, and a pair of fixing grooves extending from leading ends of the guiding grooves in a radial direction of the second cylindrical grill portion and in opposite directions from each other; and

a fixing protrusion portion formed on an outer circumference of the connection member to mate with the guiding grooves and the fixing grooves of the fixing groove portion.