Vacuum cleaner

Patent metadata

Field	Value
Publication number	US-12150615-B2
Application number	US-202017791565-A
Country	US
Kind code	B2
Filing date	Nov 19, 2020
Priority date	Jan 15, 2020
Publication date	Nov 26, 2024
Grant date	Nov 26, 2024

Abstract

A vacuum cleaner is disclosed. The vacuum cleaner according to embodiments of the present disclosure includes a main body and a suction nozzle. The suction nozzle includes a housing, a button, a rotating brush, and a detachable cover. The housing includes an insertion hole. The button includes a first protrusion. The detachable cover includes a cover body and a slider. The cover body includes an insertion member, a second protrusion, and a rail. The rotating brush is rotatably mounted to the slider. The slider is mounted on the rail so as to be movable in a first direction. The insertion member is inserted into the insertion hole in the first direction. As the button is moved, the first protrusion is selectively positioned in a movement path in the first direction of the second protrusion.

First claim

What is claimed is:

1. A vacuum cleaner, comprising:
a main body configured to generate an air pressure difference;
a suction nozzle configured to suck up dust on a cleaning surface through the generated air pressure difference, the suction nozzle including:
a housing including:
an insertion hole;
a passage through which the dust moves to the main body; and
a button including a first protrusion;

a detachable cover attached to the housing, the detachable cover including:
a second protrusion; and
an insertion member configured to be inserted into the insertion hole in a first direction; and

a rotating brush configured to rotate so as to push the dust on the cleaning surface toward the passage, the rotating brush being rotatably mounted to the detachable cover,

wherein the button is movably mounted on the housing to selectively position the first protrusion in a movement path in the first direction of the second protrusion,
wherein movement of the button causes the detachable cover to disengage from the housing, and
wherein the housing includes an elastic member for pushing the first protrusion in the movement path in the first direction.

2. The vacuum cleaner according to claim 1 , wherein the second protrusion is moveable in the first direction and forms an inclined contact surface with the first protrusion, and
wherein the second protrusion is configured to push the first protrusion outside the movement path in the first direction of the second protrusion through the inclined contact surface.

3. The vacuum cleaner according to claim 1 , wherein the first direction is a direction perpendicular to a direction of a rotation axis of the rotating brush, and
wherein an inner surface of the insertion hole forms movement and rotation boundaries that prevent movement and rotation of the insertion member except for movement in the movement path in the first direction of the second protrusion.

4. The vacuum cleaner according to claim 3 , wherein the detachable cover further includes:
a cover body including:
the insertion member;
the second protrusion; and
a rail; and

a slider mounted on the rail so as to be movable in the first direction, and
wherein the rotating brush is rotatably mounted to the slider.

5. The vacuum cleaner according to claim 4 , wherein the rail includes an elastic member for providing a force in the first direction to the slider, and
wherein, when the first protrusion deviates from the movement path in the first direction of the second protrusion, the insertion member is separated from the insertion hole in a second direction opposite to the first direction by the force applied by the elastic member.

6. The vacuum cleaner according to claim 4 , wherein the housing further includes:
a first shaft rotatably mounted to the housing; and
a driver configured to rotate the first shaft,
wherein the first shaft is engaged with the rotating brush and is configured to rotate the rotating brush, and
wherein, even when the cover body moves in the first direction, the rotating brush continues to be in engagement with the first shaft.

7. The vacuum cleaner according to claim 6 , wherein the housing includes an entrance through which the rotating brush passes toward the first shaft, and
wherein an inner surface of the entrance constrains rotation of the slider about the rotation axis.

8. The vacuum cleaner according to claim 1 , wherein the housing further includes a latching groove,
wherein the detachable cover includes a third protrusion, and
wherein the third protrusion is inserted into the latching groove in the first direction.

9. The vacuum cleaner according to claim 8 , wherein the latching groove is formed on an opposite side of the insertion hole based on the rotation axis, and
wherein an inner surface of the latching groove forms a movement boundary that prevents movement of the third protrusion in the first direction and in the direction of the rotation axis.

10. A vacuum cleaner, comprising:
a main body configured to generate an air pressure difference; and
a suction nozzle configured to suck up dust on a cleaning surface through the generated air pressure difference, the suction nozzle including:
a housing including:
an insertion hole;
a passage through which the dust moves to the main body;
a button having a first protrusion;
a first shaft rotatably mounted to the housing; and
a driver configured to rotate the first shaft;

a cover body including:
a rail;
a second protrusion; and
an insertion member configured to be inserted into the insertion hole in a first direction;

a slider mounted on the rail so as to be movable in the first direction; and
a rotating brush rotatably mounted to the slider, the first shaft being configured to rotate the rotating brush,

wherein the button is movably mounted on the housing to selectively position the first protrusion in a movement path in the first direction of the second protrusion,
wherein movement of the button causes the cover body to disengage from the housing,
wherein the second protrusion is movable in the first direction and forms an inclined contact surface with the first protrusion, and
wherein the second protrusion is configured to push the first protrusion outside the movement path in the first direction of the second protrusion through the inclined contact surface.

11. The vacuum cleaner according to claim 10 , wherein the rail includes an elastic member for providing a force in the first direction to the slider, and
wherein, when the first protrusion deviates from the movement path in the first direction of the second protrusion, the insertion member is separated from the insertion hole in a second direction opposite to the first direction by the force applied by the elastic member.

12. The vacuum cleaner according to claim 10 , wherein, even when the cover body moves in the first direction, the rotating brush continues to be in engagement with the first shaft.

13. The vacuum cleaner according to claim 10 , wherein the rotating brush includes:
a cylindrical body;
a brush attached to an outer surface of the cylindrical body;
a second shaft coupled to a first side of a rotation axis of the cylindrical body; and
a third shaft coupled to a second side of the rotation axis of the cylindrical body.

14. The vacuum cleaner according to claim 13 , wherein the first shaft includes a plurality of grooves,
wherein the second shaft includes a plurality of projections that engage the plurality of grooves of the first shaft, and
wherein a rotating force of the first shaft is transmitted to the rotating brush through the second shaft.

15. The vacuum cleaner according to claim 14 , wherein the third shaft rotatably couples the cylindrical body to the slider.

Assignees

• Lg Electronics Inc

Inventors

• Lee Jung Woo
• Hwang Jung Bae
• Hwang Phil Jae
• Kim Chi Wan

Classifications

• A47L9/0411

  driven by electric motor · CPC title

• A47L5/26 Primary

  with driven dust-loosening tools · CPC title

• A46B2200/3033

  Household brush, i.e. brushes for cleaning in the house or dishes · CPC title

• A46B13/02

  power-driven {carriers} · CPC title

• A46B13/005

  made up of a series of longitudinal strips or segments · CPC title