US20160113458A1 - Cleaning nozzle assembly - Google Patents
Cleaning nozzle assembly Download PDFInfo
- Publication number
- US20160113458A1 US20160113458A1 US14/924,443 US201514924443A US2016113458A1 US 20160113458 A1 US20160113458 A1 US 20160113458A1 US 201514924443 A US201514924443 A US 201514924443A US 2016113458 A1 US2016113458 A1 US 2016113458A1
- Authority
- US
- United States
- Prior art keywords
- cleaning nozzle
- lower case
- nozzle assembly
- inlet
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/0009—Storing devices ; Supports, stands or holders
- A47L9/0054—Stands or the like for temporary interruption of work
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
- A47L9/0405—Driving means for the brushes or agitators
- A47L9/0411—Driving means for the brushes or agitators driven by electric motor
Definitions
- a vacuum cleaner absorbs and removes dust or foreign matter using suction force of air introduced from outside through activation of a motor received in a main body thereof, and is generally used to clean a floor.
- An upright type vacuum cleaner can be conveniently moved and easily operated by virtue of integral formation of a suction nozzle and a handle with a main body, and is thus generally used for relatively simple cleaning.
- the present invention have been conceived to solve such problems in the art and an aspect of the present invention is to provide a cleaning nozzle assembly which can switch inlets of a cleaning nozzle receiving air and foreign substances to selectively provide dust suction over a wider area and intensive dust suction, and to allow adjustment of suction force, thereby sufficiently suctioning only air and foreign substances while preventing damage to a surface to be cleaned.
- Another aspect of the present invention is to provide a cleaning nozzle assembly which includes a bearing provided to wheels of a cleaning nozzle, thereby preventing noise from being generated from a case connection of the cleaning nozzle while enhancing durability of the wheels.
- the inflow setting unit may include: a plate member reciprocating along the partition wall and having an open hole to open/close the connection hole; a manipulation knob extending from one side of the plate member; and a switch knob mounted on the upper case to reciprocate the manipulation knob for opening/closing the connection hole.
- the bristles may form a helical trajectory from both sides of the rotary rod toward a predetermined portion within the lower case in an axial direction of the rotary rod to collect foreign substances to the predetermined portion.
- the lower case or the upper case may be provided at both sides thereof with ribs and a wheel member may be rotatably provided to each of the ribs.
- the wheel member may include: a bearing member provided to the rib, a roller member provided to the bearing member; and a buffer member surrounding a circumferential surface of the roller member.
- the lower case and the upper case may be provided with a transfer duct guiding transfer of introduced foreign substances and air and connected to a transfer pipe, and the transfer pipe may prevent the lower case from rotating by virtue of a first confining unit when the lower case is lifted up.
- the first confining unit may include: a first groove formed on an inner surface of the transfer duct; and a first protrusion protruding from a circumferential surface of the transfer pipe and received by a corresponding first groove to prevent the lower case from rotating with respect to the transfer pipe.
- the lower case and the upper case may be provided with a transfer duct guiding transfer of introduced foreign substances and air and connected to a transfer pipe; a connector may be rotatably provided to the transfer duct to connect the transfer pipe to the transfer duct and erect the transfer pipe; and the transfer duct may be prevented from rotating in an upright state with respect to the upper case by virtue of a second confining unit.
- the second confining unit may include: a second groove formed on the upper case contacting the transfer pipe in an upright state; and a second protrusion protruding from a circumferential surface of the transfer pipe and received by a corresponding second groove to prevent the transfer pipe from rotating with respect to the upper case.
- FIG. 2 is an exploded perspective view of the cleaning nozzle assembly according to the embodiment of the present invention.
- FIG. 3 is a bottom exploded perspective view of the lower case and the upper case of the cleaning nozzle assembly shown in FIG. 2 ;
- FIG. 4 is an exploded perspective view of the cleaning nozzle assembly according to the embodiment of the present invention, showing various components mounted on the lower case of the cleaning nozzle assembly;
- FIG. 10 is a bottom perspective view of the cleaning nozzle assembly according to the embodiment of the present invention, showing the transfer pipe confined to the upper case;
- FIG. 1 is a perspective view of a vacuum cleaner including a cleaning nozzle assembly according to one embodiment of the present invention
- FIG. 2 is an exploded perspective view of the cleaning nozzle assembly according to the embodiment of the present invention
- FIG. 3 is a bottom exploded perspective view of the lower case and the upper case of the cleaning nozzle assembly shown in FIG. 2 .
- a vacuum cleaner 100 includes a dust container 200 , an operation unit 300 , a cleaning nozzle assembly 400 , and a cleaner hose 500 .
- the dust container 200 is provided at one side thereof with an intake port 210 to create forced flow and serves to store air and foreign substances, such as dust, introduced thereto.
- the container 200 may be formed in a variety of shapes.
- the dust container 200 is mounted on a carrier 220 to be easily moved to a desired location.
- the carrier 220 is provided with a plurality of rollers 222 .
- the carrier 220 may be formed in a variety of shapes.
- the cleaning nozzle assembly 400 serves to suction foreign substances such as dirt on a floor together with air through operation of the operation unit 300 .
- the cleaner hose 500 serves to connect the cleaning nozzle assembly 400 to the dust container 200 and to guide foreign substances and air suctioned by the cleaning nozzle assembly 400 to be delivered to the dust container 200 .
- the cleaning nozzle assembly 400 includes a lower case 410 , an upper case 420 , and an inflow setting unit 430 .
- the lower case 410 has a main inlet 412 and a lower sub-inlet 414 to guide inflow of foreign substances and air thereinto, while adjoining or close to a floor. Foreign substances and air are introduced into the lower case 410 through the main inlet 412 as well as the lower sub-inlet 414 . In other words, besides dust on a floor, foreign substances and air floating over the cleaning nozzle assembly 400 are introduced into the lower case 410 via both the main inlet 412 and the lower sub-inlet 414 , whereby foreign substances can be removed at an increased rate.
- the inflow setting unit 430 serves to set inflow of foreign substances and air into the lower case 410 through the lower sub-inlet 414 and the upper sub-inlet 421 by opening/closing the connection holes 418 .
- the foreign substances and air may be introduced only through the main inlet 412 .
- the foreign substances and air may be introduced through the main inlet 412 , the lower sub-inlet 414 , and the upper sub-inlet 421 at the same time.
- intensive suction is needed when trying to suction foreign substances from furry mattresses, rugs, carpets, and the like.
- the plate member 432 is configured to reciprocate along the partition wall 416 .
- the plate member 432 has open holes 433 corresponding to the connection holes 418 in a one-to-one manner.
- the connection hole 418 is open when the connection holes 418 are aligned with the open holes 433 , or is blocked by the plate member 432 .
- the plate member 432 may be formed in a variety of shapes and be formed of various materials.
- the manipulation knob 434 extends from one side of the plate member 432 , and the switch knob 436 is coupled to the upper case 420 and serves to reciprocate the manipulation knob 434 .
- the switch knob 436 is reciprocably coupled to the upper case 420 and is connected to the manipulation knob 434 .
- the connection holes 418 are blocked by the plate member 432 or are opened by being aligned with the open hole 433 .
- the manipulation knob 434 and the switch knob 436 may be formed in a variety of shapes.
- a guide wall 442 is formed inside the upper case 420 corresponding to an upper side of the partition wall 416 of the lower case 410 .
- the guide wall 442 guides the plate member 432 to reciprocate, while supporting a lateral portion of the plate member 432 at one side thereof.
- the manipulation knob 434 is supported by the partition wall 416 and moved along the partition wall 416 .
- the manipulation knob 434 is provided with a supporting and transferring member to reciprocate along the other side of the guide wall 442 .
- the supporting and transferring member 444 is moved while contacting the other side of the partition wall 416 and the other side of the guide wall 442 .
- the plate member 432 can stably reciprocate by contacting one side of the partition wall 416 and one side of the guide wall 442 .
- the brush 450 is rotatably provided to the main inlet 412 .
- the brush 450 sweeps foreign substances on a floor into the lower case 410 and the upper case 420 while rotating.
- foreign substances swept by the brush 450 are suctioned into the lower case 410 and the upper case 420 .
- the lower case 410 is provided with a lower divider 419 to guide air and foreign substances introduced through the main inlet 412 , and the lower sub-inlet 414 , and the upper sub-inlet 421 to be delivered to a predetermined portion.
- the upper case 420 is provided with an upper divider 429 corresponding to the lower divider 419 .
- the lower case 410 is shown as being formed at a rear side thereof with a lower opening 413
- the upper case 420 is shown as being formed at a rear side thereof with an upper opening 423 .
- air and foreign substances are delivered to the lower opening 413 and the upper opening 423 along the upper divider 429 and the lower divider 419 .
- the lower divider 419 and the upper divider 429 may be formed in a variety of shapes, and the upper opening 423 and the lower opening 413 may be formed in a variety of shapes.
- the brush 450 includes a rotary rod 452 and bristles 454 .
- the bristles 454 form a helical trajectory from both sides of the rotary rod toward the lower opening 413 and the upper opening 423 in an axial direction of the rotary rod 452 to collect foreign substances to a predetermined portion within the lower case 410 , i.e. to the lower opening 413 side and the upper opening 423 side.
- the bristles 454 are helically arranged along a clockwise trajectory from one edge of the rotary rod 452 to the lower opening 413 side in an axial direction of the rotary rod, and are helically arranged from the other edge of the rotary rod 452 to the lower opening 413 side in an axial direction of the rotary rod.
- the lower opening 413 side refers to a portion at which a straight line extending from the lower opening 413 to be perpendicular to the rotary rod 452 meets the rotary rod 452 .
- the lower case 410 or the upper case 420 is provided with wheel members 464 to be easily moved.
- the wheel members 464 are rotatably provided at both rear sides of the lower case 410 and are in rolling contact with a floor.
- the lower case 410 is provided at both sides thereof with ribs 462 .
- the wheel members 464 are rotatably carried by the respective ribs 462 .
- the ribs 462 may be may be formed in a variety of shapes and be formed integrally with or removably from the lower case 410 .
- the bearing member 465 axially receives each of the ribs 462 .
- the bearing member 465 is, for example, a ball bearing.
- the roller member 467 axially receives the bearing member 465 .
- the roller member 467 has a circular shape to be able to roll on a floor. It should be understood that the roller member 467 may be formed of various materials.
- the buffer member 469 is configured to surround the roller member 467 .
- the buffer member 469 may be formed of shock absorbable materials such as rubber. As above, when the bearing member 465 is coupled to the rib 462 and the roller member 467 is coupled to the bearing member 465 , it is possible to provide reduced noise and enhanced durability as compared with when the roller member 467 is directly coupled to the rib 462 .
- the lower case 410 and the upper case 420 is respectively provided with the lower divider 419 and the upper divider 429 to guide transfer of introduced foreign substances and air.
- a transfer duct 472 is disposed at an inside of the lower case 410 adjacent to the lower opening 413 or at an inside of the upper case 420 adjacent to the upper opening 423 . It should be understood that the transfer duct 472 may be provided inside the lower divider 419 or the upper divider 429 .
- the transfer duct 472 is shown as being fixedly coupled to the lower case 410 to connect the lower opening 413 to the lower divider 419 .
- the transfer duct 472 serves to guide transfer of air and foreign substances.
- the lower case 410 has the rotary motor 455 mounted thereon at a location eccentric with respect to the center thereof.
- the transfer pipe 476 may prevent the lower case 410 held in hand from rotating by virtue of a first confining unit 480 .
- the first confining unit 480 includes a first groove 482 and a first protrusion 484 .
- the first groove 482 is formed on an inner surface of the transfer duct 472 .
- the first groove 482 may be formed on the transfer duct 472 in a variety of shapes and the number of first grooves is not particularly limited.
- the first protrusion 484 protrudes from a circumferential surface of the transfer pipe 476 and is received by the corresponding first groove 482 .
- the second confining unit 490 includes a second groove 492 and a second protrusion 494 .
- the second groove 492 is formed on an inner surface of the upper opening 423 of the upper case 420 contacting the transfer pipe 476 in the upright state.
- the shape and number of the second groove 492 are not particularly limited.
- the second protrusion 494 protrudes from a circumferential surface of the transfer pipe 476 and is received by the corresponding second groove 492 . As a result, the transfer pipe 476 is fastened to the upper case 420 to be prevented from rotating in a circumferential direction.
- the bracket 496 is fixedly provided to a portion of the lower case 410 corresponding to at least one of both centers of the connector 474 mounted on the transfer duct 472 .
- the bracket 496 may be formed in a variety of shapes.
- the positioning protrusion 498 includes a pair of positioning protrusions separated from each other and protruding from a lower side of the resilient piece 497 , i.e. a portion of the resilient piece 497 facing the bracket 496 .
- the positioning protrusions 498 may be curved with a radius of curvature along an arc trajectory thereof.
- the cleaning nozzle assembly according to the present invention can switch inlets of a cleaning nozzle receiving air and foreign substances to selectively provide dust suction over a wider area and intensive dust suction, and to allow adjustment of suction force, thereby sufficiently suctioning only air and foreign substances while preventing damage to a surface to be cleaned.
- the cleaning nozzle assembly according to the present invention allows adjustment of suction force during cleaning of a soft floor surface such as carpets or bedclothes, and thus can solve a problem that a nozzle is brought into too close contact with the floor surface to make it difficult to move the nozzle.
- the cleaning nozzle assembly according to the present invention includes bearings provided to wheels of a cleaning nozzle, thereby preventing noise from being generated from a case connection of the cleaning nozzle while enhancing durability of the wheels.
- the cleaning nozzle assembly allows a transfer pipe provided to a cleaning nozzle for changing a cleaning location to be confined to the cleaning nozzle in an upright state and in use, thereby allowing the cleaning nozzle to remain horizontal with respect to a floor and preventing the transfer pipe from being randomly rotated in the upright state when the transfer pipe is lifted up.
Abstract
A cleaning nozzle assembly of a vacuum cleaner. The cleaning nozzle assembly includes: a lower case having a main inlet and a lower sub-inlet to guide foreign substances and air to be introduced into the lower case, wherein the lower case is open at an upper side thereof and includes a partition wall isolating the main inlet from the lower sub-inlet and having a connection hole; an upper case coupled to the lower case to cover the open upper side of the lower case; and an inflow setting unit setting inflow of foreign substances and air into the lower case through the lower sub-inlet and an upper sub-inlet by opening/closing the connection hole. The cleaning nozzle assembly can switch inlets of a cleaning nozzle receiving air and foreign substances, thereby selectively providing dust suction over a wider area and intensive dust suction, can prevent noise from being generated by wheels of the cleaning nozzle, and allows the cleaning nozzle to remain horizontal with respect to a floor when a transfer pipe provided to the cleaning nozzle for changing a cleaning location during cleaning is lifted up.
Description
- 1. Technical Field
- The present invention relates to a cleaning nozzle assembly. More particularly, the present invention relates to a cleaning nozzle assembly which can switch inlets of a cleaning nozzle receiving air and foreign substances, thereby selectively providing dust suction over a wider area and intensive dust suction, prevent a noise generated by wheels of the cleaning nozzle, and allow the cleaning nozzle to remain horizontal with respect to a floor when a transfer pipe provided to the cleaning nozzle for changing a cleaning location during cleaning is lifted up.
- 2. Description of the Related Art
- A typical vacuum cleaner has a structure wherein a motor for generating vacuum and an envelope type filter are disposed within a main body of the cleaner to allow sludge to be introduced into the main body of the cleaner through vacuum force generated by activation of the motor and to be filtered out through the filter, such that filth having been filtered out remains in the main body of the cleaner and only sludge and air having passed through the filter are discharged through an outlet port at an upper portion of the main body.
- In particular, a vacuum cleaner absorbs and removes dust or foreign matter using suction force of air introduced from outside through activation of a motor received in a main body thereof, and is generally used to clean a floor.
- Such a vacuum cleaner is mainly divided into a canister type vacuum cleaner and an upright type vacuum cleaner. For the canister type vacuum cleaner, a suction nozzle for suctioning dust on a floor is provided separately from a main body and thus can be replaced to suit various applications. On the contrary, for the upright type vacuum cleaner, a suction nozzle is integrally formed with a main body.
- A canister type vacuum cleaner generally includes a main body generating suction force and collecting dust; a suction nozzle suctioning dust and foreign substances while being moved on a floor; and a connection tube for connection of the suction nozzle to the main body. Such a canister type vacuum cleaner allows a suction nozzle to be replaced depending upon the shape or material of objects or floors to be cleaned, has strong suction force, and thus has a wide range of applications as compared with an upright type vacuum cleaner.
- An upright type vacuum cleaner can be conveniently moved and easily operated by virtue of integral formation of a suction nozzle and a handle with a main body, and is thus generally used for relatively simple cleaning.
- The aforementioned features provide background information related to the present disclosure, which is not necessarily prior art.
- One example of the related art is disclosed in Korean Patent Publication No. 10-2012-0114132 (entitled “Suction tube for vacuum cleaner and vacuum cleaner including the same”)
- In a typical vacuum cleaner, wheels of a suction nozzle formed by injection molding are rotatably mounted on a body of the nozzle. Here, friction between the body and the wheels, both of which are injection molded articles, causes noise. In addition, a typical vacuum cleaner has a problem in that when cleaning is performed using a rotary brush type suction nozzle for cleaning carpets, bedclothes, and the like, the suction nozzle can be brought into too close contact with a surface to be cleaned depending upon the kind and state of the surface, which makes it difficult to move the nozzle while causing damage to the surface.
- Therefore, there is a need for an improved technique capable of overcoming these problems.
- The present invention have been conceived to solve such problems in the art and an aspect of the present invention is to provide a cleaning nozzle assembly which can switch inlets of a cleaning nozzle receiving air and foreign substances to selectively provide dust suction over a wider area and intensive dust suction, and to allow adjustment of suction force, thereby sufficiently suctioning only air and foreign substances while preventing damage to a surface to be cleaned.
- Another aspect of the present invention is to provide a cleaning nozzle assembly which includes a bearing provided to wheels of a cleaning nozzle, thereby preventing noise from being generated from a case connection of the cleaning nozzle while enhancing durability of the wheels.
- A further aspect of the present invention is to provide a cleaning nozzle assembly which allows a transfer pipe provided to a cleaning nozzle for changing a cleaning location to be confined to the cleaning nozzle in an upright state and in use, thereby allowing the cleaning nozzle to remain horizontal with respect to a floor and preventing the transfer pipe from being randomly rotated in the upright state when the transfer pipe is lifted up.
- In accordance with one aspect of the present invention, a cleaning nozzle assembly includes: a lower case having a main inlet and a lower sub-inlet to guide foreign substances and air to be introduced into the lower case, wherein the lower case is open at an upper side thereof and includes a partition wall isolating the main inlet from the lower sub-inlet and having a connection hole; an upper case coupled to the lower case to cover the open upper side of the lower case; and an inflow setting unit setting inflow of foreign substances and air into the lower case through the lower sub-inlet and an upper sub-inlet by opening/closing the connection hole.
- The inflow setting unit may include: a plate member reciprocating along the partition wall and having an open hole to open/close the connection hole; a manipulation knob extending from one side of the plate member; and a switch knob mounted on the upper case to reciprocate the manipulation knob for opening/closing the connection hole.
- The upper case may have a guide wall supporting a lateral portion of the plate member at one side thereof to guide the plate member to reciprocate; and the manipulation knob may be provided with a supporting and transferring member to be guided to reciprocate along the other side of the guide wall.
- The main inlet may be rotatably provided with a brush, wherein the brush includes a rotary rod formed of wood to reduce or prevent thermal deformation, and bristles disposed on a circumferential surface of the rotary rod to sweep foreign substances into the lower case
- The bristles may form a helical trajectory from both sides of the rotary rod toward a predetermined portion within the lower case in an axial direction of the rotary rod to collect foreign substances to the predetermined portion.
- The lower case or the upper case may be provided at both sides thereof with ribs and a wheel member may be rotatably provided to each of the ribs.
- The wheel member may include: a bearing member provided to the rib, a roller member provided to the bearing member; and a buffer member surrounding a circumferential surface of the roller member.
- The lower case and the upper case may be provided with a transfer duct guiding transfer of introduced foreign substances and air and connected to a transfer pipe, and the transfer pipe may prevent the lower case from rotating by virtue of a first confining unit when the lower case is lifted up.
- The first confining unit may include: a first groove formed on an inner surface of the transfer duct; and a first protrusion protruding from a circumferential surface of the transfer pipe and received by a corresponding first groove to prevent the lower case from rotating with respect to the transfer pipe.
- The lower case and the upper case may be provided with a transfer duct guiding transfer of introduced foreign substances and air and connected to a transfer pipe; a connector may be rotatably provided to the transfer duct to connect the transfer pipe to the transfer duct and erect the transfer pipe; and the transfer duct may be prevented from rotating in an upright state with respect to the upper case by virtue of a second confining unit.
- The second confining unit may include: a second groove formed on the upper case contacting the transfer pipe in an upright state; and a second protrusion protruding from a circumferential surface of the transfer pipe and received by a corresponding second groove to prevent the transfer pipe from rotating with respect to the upper case.
- A handle may be rotatably provided to the upper case and prevented from protruding outside the upper case.
- The upper case may have an upper sub-inlet corresponding to the lower sub-inlet
- The above and other aspects, features and advantages of the present invention will become apparent from the following description of embodiments given in conjunction with the accompanying drawings, in which:
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FIG. 1 is a perspective view of a vacuum cleaner including a cleaning nozzle assembly according to one embodiment of the present invention; -
FIG. 2 is an exploded perspective view of the cleaning nozzle assembly according to the embodiment of the present invention; -
FIG. 3 is a bottom exploded perspective view of the lower case and the upper case of the cleaning nozzle assembly shown inFIG. 2 ; -
FIG. 4 is an exploded perspective view of the cleaning nozzle assembly according to the embodiment of the present invention, showing various components mounted on the lower case of the cleaning nozzle assembly; -
FIGS. 5 and 6 are perspective views of an inflow setting unit of the cleaning nozzle assembly according to the embodiment of the present invention in operation; -
FIG. 7 is a plan view of the lower case according to the embodiment of the present invention; -
FIG. 8 is an exploded perspective view of a wheel of the lower case according to the embodiment of the present invention; -
FIG. 9 is a bottom perspective view of the cleaning nozzle assembly according to the embodiment of the present invention, showing a transfer pipe confined to the lower case; -
FIG. 10 is a bottom perspective view of the cleaning nozzle assembly according to the embodiment of the present invention, showing the transfer pipe confined to the upper case; and -
FIG. 11 is a perspective view of the cleaning nozzle assembly according to the embodiment of the present invention, showing the transfer pipe confined to the upper case. - Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the drawings are not to precise scale and may be exaggerated in thickness of lines or size of components for descriptive convenience and clarity only. In addition, terms used herein are defined by taking functions of the present invention into account and can be changed according to user or operator custom or intention. Therefore, definition of the terms should be made according to the overall disclosure set forth herein.
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FIG. 1 is a perspective view of a vacuum cleaner including a cleaning nozzle assembly according to one embodiment of the present invention,FIG. 2 is an exploded perspective view of the cleaning nozzle assembly according to the embodiment of the present invention, andFIG. 3 is a bottom exploded perspective view of the lower case and the upper case of the cleaning nozzle assembly shown inFIG. 2 . -
FIG. 4 is an exploded perspective view of the cleaning nozzle assembly according to the embodiment of the present invention, showing various components mounted on the lower case of the cleaning nozzle assembly, andFIGS. 5 and 6 are perspective views of an inflow setting unit of the cleaning nozzle assembly according to the embodiment of the present invention in operation. -
FIG. 7 is a plan view of the lower case according to the embodiment of the present invention andFIG. 8 is an exploded perspective view of a wheel of the lower case according to the embodiment of the present invention. -
FIG. 9 is a bottom perspective view of the cleaning nozzle assembly according to the embodiment of the present invention, showing a transfer pipe confined to the lower case,FIG. 10 is a bottom perspective view of the cleaning nozzle assembly according to the embodiment of the present invention, showing the transfer pipe confined to the upper case, andFIG. 11 is a perspective view of the cleaning nozzle assembly according to the embodiment of the present invention, showing the transfer pipe confined to the upper case. - Referring to
FIG. 1 , avacuum cleaner 100 according to one embodiment of the present invention includes adust container 200, anoperation unit 300, acleaning nozzle assembly 400, and acleaner hose 500. - The
dust container 200 is provided at one side thereof with anintake port 210 to create forced flow and serves to store air and foreign substances, such as dust, introduced thereto. Here, thecontainer 200 may be formed in a variety of shapes. - The
dust container 200 is mounted on acarrier 220 to be easily moved to a desired location. Thecarrier 220 is provided with a plurality ofrollers 222. Thecarrier 220 may be formed in a variety of shapes. - The
operation unit 300 is disposed at the other side of thedust container 200. Theoperation unit 300 forcedly generates airflow to force air and foreign substances to be introduced into thedust container 200 via theintake port 210 or to force air to be discharged from the dust container. - The cleaning
nozzle assembly 400 serves to suction foreign substances such as dirt on a floor together with air through operation of theoperation unit 300. - The
cleaner hose 500 serves to connect the cleaningnozzle assembly 400 to thedust container 200 and to guide foreign substances and air suctioned by the cleaningnozzle assembly 400 to be delivered to thedust container 200. - Particularly, referring to
FIGS. 2, 3 and 4 , the cleaningnozzle assembly 400 includes alower case 410, anupper case 420, and aninflow setting unit 430. - The
lower case 410 has amain inlet 412 and alower sub-inlet 414 to guide inflow of foreign substances and air thereinto, while adjoining or close to a floor. Foreign substances and air are introduced into thelower case 410 through themain inlet 412 as well as thelower sub-inlet 414. In other words, besides dust on a floor, foreign substances and air floating over the cleaningnozzle assembly 400 are introduced into thelower case 410 via both themain inlet 412 and thelower sub-inlet 414, whereby foreign substances can be removed at an increased rate. - The
main inlet 412 and thelower sub-inlet 414 are separated from each other by thepartition wall 416 inside thelower case 410. Thepartition wall 416 has connection holes 418 through which themain inlet 412 communicate with thelower sub-inlet 414. The number and size of the connection holes 418 are not particularly limited. It should be understood that themain inlet 412 and thelower sub-inlet 414 may have various sizes. In particular, themain inlet 412 and thelower sub-inlet 414 are aligned with each other and formed at a lower front edge of thelower case 410. Thus, thelower case 410 can suction foreign substances and air while moving forward. - The
lower case 410 is open at an upper side thereof. This structure facilitates assembly and repair of theinflow setting unit 430, arotary motor 455, abrush 450, and the like described below. It should be understood that thelower case 410 may be formed of various materials and be formed in a variety of shapes. - The
upper case 420 serves to cover the open upper side of thelower case 410, thereby protecting theinflow setting unit 430, therotary motor 455, and thebrush 450 coupled to thelower case 410. In particular, theupper case 420 may be formed therethrough with anupper sub-inlet 421 corresponding to thelower sub-inlet 414. Thus, lots of foreign substances and ambient air can be introduced into theupper case 420 and thelower case 410 through thelower sub-inlet 414 and theupper sub-inlet 421 in a short time. - In particular, the
upper sub-inlet 421 serves to decentralize suction force of themain inlet 412 and thelower sub-inlet 414 and to allow only foreign substances to be sufficiently suctioned so as to prevent difficulty in suctioning foreign substances, when performing suction of foreign substances floating around thelower case 410 and cleaning of a soft floor surface, the surface to be cleaned is suctioned or in excessively close contact with the a bottom surface of thelower case 410 clogging themain inlet 412 and thelower sub-inlet 414 and blocking flow of air. - It should be understood that the
upper case 420 and thelower case 410 may be assembled through various methods such as bolting, hook fastening, or the like. In addition, theupper case 420 may be shaped in various shapes. In particular, theupper case 420 may be provided with an LED lamp to display operation of therotary motor 455 and shed light on a front floor surface to facilitate detection of foreign substances, thereby allowing easy cleaning. - Further, the
upper case 420 may be provided with ahandle 422 to allow the cleaningnozzle assembly 400 to be carried by hand. Thehandle 422 may be rotatably coupled to theupper case 420. Here, the handle is embedded in theupper case 420 so as not to protrude outwards. In other words, theupper case 420 has an embeddinggroove 424 in an upper surface thereof. Thehandle 422 is rotatably connected at both ends thereof to an inside of the embeddinggroove 424. Thus, thehandle 422 is embedded in the embeddinggroove 424 so as not to protrude outwards when not in use, and is rotated to stand upright in use. It should be understood that thehandle 422 may be formed in a variety of shapes and be formed of various materials. - The
inflow setting unit 430 serves to set inflow of foreign substances and air into thelower case 410 through thelower sub-inlet 414 and theupper sub-inlet 421 by opening/closing the connection holes 418. In other words, when foreign substances need to be locally and intensively suctioned from under theupper case 420, the foreign substances and air may be introduced only through themain inlet 412. On the other hand, when foreign substances need to be suctioned over a wide area, the foreign substances and air may be introduced through themain inlet 412, thelower sub-inlet 414, and theupper sub-inlet 421 at the same time. Here, intensive suction is needed when trying to suction foreign substances from furry mattresses, rugs, carpets, and the like. - Accordingly, the
inflow setting unit 430 serves to open/close the connection holes 418. - The
inflow setting unit 430 includes aplate member 432, amanipulation knob 434, and aswitch knob 436. - As shown in
FIGS. 5 and 6 , theplate member 432 is configured to reciprocate along thepartition wall 416. In addition, theplate member 432 hasopen holes 433 corresponding to the connection holes 418 in a one-to-one manner. Thus, as theplate member 432 reciprocates along thepartition wall 416, theconnection hole 418 is open when the connection holes 418 are aligned with theopen holes 433, or is blocked by theplate member 432. It should be understood that theplate member 432 may be formed in a variety of shapes and be formed of various materials. - The
manipulation knob 434 extends from one side of theplate member 432, and theswitch knob 436 is coupled to theupper case 420 and serves to reciprocate themanipulation knob 434. Thus, theswitch knob 436 is reciprocably coupled to theupper case 420 and is connected to themanipulation knob 434. Thus, when theswitch knob 436 is moved in one direction or in the other direction, the connection holes 418 are blocked by theplate member 432 or are opened by being aligned with theopen hole 433. It should be understood that themanipulation knob 434 and theswitch knob 436 may be formed in a variety of shapes. - The
plate member 432 may be guided to stably reciprocate through manipulation of theswitch knob 436. - Namely, a
guide wall 442 is formed inside theupper case 420 corresponding to an upper side of thepartition wall 416 of thelower case 410. Theguide wall 442 guides theplate member 432 to reciprocate, while supporting a lateral portion of theplate member 432 at one side thereof. - The
manipulation knob 434 is supported by thepartition wall 416 and moved along thepartition wall 416. In addition, themanipulation knob 434 is provided with a supporting and transferring member to reciprocate along the other side of theguide wall 442. - Accordingly, the supporting and transferring
member 444 is moved while contacting the other side of thepartition wall 416 and the other side of theguide wall 442. Thus, theplate member 432 can stably reciprocate by contacting one side of thepartition wall 416 and one side of theguide wall 442. - In addition, the
brush 450 is rotatably provided to themain inlet 412. Thebrush 450 sweeps foreign substances on a floor into thelower case 410 and theupper case 420 while rotating. Here, as air is forcibly introduced into thelower case 410 and theupper case 420 via themain inlet 412 through operation of a fan motor member 320, foreign substances swept by thebrush 450 are suctioned into thelower case 410 and theupper case 420. - In particular, the
lower case 410 is provided with alower divider 419 to guide air and foreign substances introduced through themain inlet 412, and thelower sub-inlet 414, and theupper sub-inlet 421 to be delivered to a predetermined portion. Further, theupper case 420 is provided with anupper divider 429 corresponding to thelower divider 419. For convenience, thelower case 410 is shown as being formed at a rear side thereof with alower opening 413, and theupper case 420 is shown as being formed at a rear side thereof with anupper opening 423. Thus, air and foreign substances are delivered to thelower opening 413 and theupper opening 423 along theupper divider 429 and thelower divider 419. It should be understood that thelower divider 419 and theupper divider 429 may be formed in a variety of shapes, and theupper opening 423 and thelower opening 413 may be formed in a variety of shapes. - In addition, the
brush 450 is connected to both inner sides of themain inlet 412 to receive drive force of therotary motor 455 to be unidirectionally rotated. - In particular, drive force of the
rotary motor 455 is transmitted to thebrush 450 by atransmission member 456. For convenience, thetransmission member 456 is shown as being a belt. - The
brush 450 includes arotary rod 452 and bristles 454. - The
rotary rod 452 may be formed of wood to reduce or prevent thermal deformation. Thebristles 454 are disposed on a circumferential surface of therotary rod 452 and serves to sweep foreign substances into thelower case 410. - As shown in
FIG. 7 , thebristles 454 form a helical trajectory from both sides of the rotary rod toward thelower opening 413 and theupper opening 423 in an axial direction of therotary rod 452 to collect foreign substances to a predetermined portion within thelower case 410, i.e. to thelower opening 413 side and theupper opening 423 side. In other words, thebristles 454 are helically arranged along a clockwise trajectory from one edge of therotary rod 452 to thelower opening 413 side in an axial direction of the rotary rod, and are helically arranged from the other edge of therotary rod 452 to thelower opening 413 side in an axial direction of the rotary rod. Herein, “thelower opening 413 side” refers to a portion at which a straight line extending from thelower opening 413 to be perpendicular to therotary rod 452 meets therotary rod 452. - In addition, the
lower case 410 or theupper case 420 is provided withwheel members 464 to be easily moved. For convenience, thewheel members 464 are rotatably provided at both rear sides of thelower case 410 and are in rolling contact with a floor. - Here, the
lower case 410 is provided at both sides thereof withribs 462. Thewheel members 464 are rotatably carried by therespective ribs 462. Theribs 462 may be may be formed in a variety of shapes and be formed integrally with or removably from thelower case 410. - Further, as shown in
FIG. 8 , thewheel member 464 includes a bearingmember 465, aroller member 467, and abuffer member 469. - The bearing
member 465 axially receives each of theribs 462. For convenience, the bearingmember 465 is, for example, a ball bearing. - The
roller member 467 axially receives the bearingmember 465. Here, theroller member 467 has a circular shape to be able to roll on a floor. It should be understood that theroller member 467 may be formed of various materials. - The
buffer member 469 is configured to surround theroller member 467. Thebuffer member 469 may be formed of shock absorbable materials such as rubber. As above, when the bearingmember 465 is coupled to therib 462 and theroller member 467 is coupled to the bearingmember 465, it is possible to provide reduced noise and enhanced durability as compared with when theroller member 467 is directly coupled to therib 462. - In addition, when the
roller member 467 is provided with thebuffer member 469 as above, it is possible to provide considerably reduced noise as compared with when theroller member 467 is in direct contact with a floor. - In particular, the
lower case 410 and theupper case 420 is respectively provided with thelower divider 419 and theupper divider 429 to guide transfer of introduced foreign substances and air. In addition, atransfer duct 472 is disposed at an inside of thelower case 410 adjacent to thelower opening 413 or at an inside of theupper case 420 adjacent to theupper opening 423. It should be understood that thetransfer duct 472 may be provided inside thelower divider 419 or theupper divider 429. - For convenience, the
transfer duct 472 is shown as being fixedly coupled to thelower case 410 to connect thelower opening 413 to thelower divider 419. Thus, thetransfer duct 472 serves to guide transfer of air and foreign substances. - In addition, a
connector 474 is rotatably provided to thetransfer duct 472. Theconnector 474 is open at both sides thereof to allow flow of air and foreign substances therethrough. In other words, air and foreign substances introduced into thelower case 410 are introduced through one side of theconnector 474 and discharged from the other side of the connector. - In particular, the
connector 474 is connected to atransfer pipe 476 at the other side thereof. Thetransfer pipe 476 is connected to thecleaner hose 500. - The
lower case 410 has therotary motor 455 mounted thereon at a location eccentric with respect to the center thereof. In this case, when a user carries thetransfer pipe 476 or thecleaner hose 500, thelower case 410 eccentrically rotates in a circumferential direction of thetransfer pipe 476. Accordingly, thetransfer pipe 476 may prevent thelower case 410 held in hand from rotating by virtue of a first confiningunit 480. - As shown in
FIGS. 9 to 10 , the first confiningunit 480 includes afirst groove 482 and afirst protrusion 484. - The
first groove 482 is formed on an inner surface of thetransfer duct 472. Here, it should be understood that thefirst groove 482 may be formed on thetransfer duct 472 in a variety of shapes and the number of first grooves is not particularly limited. - The
first protrusion 484 protrudes from a circumferential surface of thetransfer pipe 476 and is received by the correspondingfirst groove 482. Thus, when a user carries thetransfer pipe 476 in hand, thelower case 410 is prevented from rotating in a circumferential direction of thetransfer pipe 476 even though the center of gravity of the lower case deviates from the geometric center of the lower case. Thus, even when thelower case 410 is lifted up, the lower case remains parallel to a floor, thereby preventing inconvenience due to eccentric rotation of thelower case 410. - In addition, when the cleaning
nozzle assembly 400 is not used, thetransfer pipe 476 may be stored in an upright state with respect to thelower case 410. Here, thetransfer pipe 476 is rotated together with theconnector 474 to be upright. In particular, when thetransfer pipe 476 is rotated in the circumferential direction in the upright state, the direction of a handle of thecleaner hose 500 will be shifted. Accordingly, thetransfer pipe 476 may be held in place in the upright state by a second confiningunit 490. - As shown in
FIG. 11 , the second confiningunit 490 includes asecond groove 492 and asecond protrusion 494. - The
second groove 492 is formed on an inner surface of theupper opening 423 of theupper case 420 contacting thetransfer pipe 476 in the upright state. Here, the shape and number of thesecond groove 492 are not particularly limited. - The
second protrusion 494 protrudes from a circumferential surface of thetransfer pipe 476 and is received by the correspondingsecond groove 492. As a result, thetransfer pipe 476 is fastened to theupper case 420 to be prevented from rotating in a circumferential direction. - In particular, a separate
location holding unit 495 may be provided to prevent thesecond protrusion 494 from being randomly separated from thesecond groove 492. - The
location holding unit 495 includes abracket 496, aresilient piece 497, apositioning protrusion 498, and astopper 499. - The
bracket 496 is fixedly provided to a portion of thelower case 410 corresponding to at least one of both centers of theconnector 474 mounted on thetransfer duct 472. Thebracket 496 may be formed in a variety of shapes. - The
resilient piece 497 extends from one side of thebracket 496 to the other side thereof and is configured to resiliently spread apart from thebracket 496. It should be understood that thebracket 496 may be formed in a variety of shapes. - The
positioning protrusion 498 includes a pair of positioning protrusions separated from each other and protruding from a lower side of theresilient piece 497, i.e. a portion of theresilient piece 497 facing thebracket 496. Here, the positioningprotrusions 498 may be curved with a radius of curvature along an arc trajectory thereof. - The
stopper 499 protrudes from a circumferential surface of theconnector 474 adjacent to thepositioning protrusion 498. When theconnector 474 and thestopper 499 are rotated to push thepositioning protrusions 498 in an upper direction, theresilient piece 497 resiliently spreads. Then, when thestopper 499 is placed between the pair of positioningprotrusions 498, theresilient piece 497 is resiliently restored. In other words, as thestopper 499 is placed between the pair of positioningprotrusions 498 and thus prevents theconnector 474 from being randomly rotated, theconnector 474 can remain standing upright. - It should be understood that when the
connector 474 is forcibly rotated in an opposite direction by a user, thestopper 499 lifts theresilient piece 497 up and returns to an initial location thereof. - As described above, the cleaning nozzle assembly according to the present invention can switch inlets of a cleaning nozzle receiving air and foreign substances to selectively provide dust suction over a wider area and intensive dust suction, and to allow adjustment of suction force, thereby sufficiently suctioning only air and foreign substances while preventing damage to a surface to be cleaned. In other words, the cleaning nozzle assembly according to the present invention allows adjustment of suction force during cleaning of a soft floor surface such as carpets or bedclothes, and thus can solve a problem that a nozzle is brought into too close contact with the floor surface to make it difficult to move the nozzle.
- In addition, the cleaning nozzle assembly according to the present invention includes bearings provided to wheels of a cleaning nozzle, thereby preventing noise from being generated from a case connection of the cleaning nozzle while enhancing durability of the wheels.
- Further, the cleaning nozzle assembly according to the present invention allows a transfer pipe provided to a cleaning nozzle for changing a cleaning location to be confined to the cleaning nozzle in an upright state and in use, thereby allowing the cleaning nozzle to remain horizontal with respect to a floor and preventing the transfer pipe from being randomly rotated in the upright state when the transfer pipe is lifted up.
- Although the present invention has been described with reference to some embodiments in conjunction with the drawings, it should be understood that these embodiments are provided for illustration only and that various modifications and other equivalent embodiments can be made without departing from the spirit and the scope of the present invention. Thus, the technical scope of the present invention should be determined by the attached claims.
-
<Legend of Reference Numerals> 100: Vacuum cleaner 200: Dust container 210: Intake port 220: Carrier 400: Cleaning nozzle assembly 410: Lower case 420: Upper case 430: Inflow setting unit 432: Plate member 433: Open hole 434: Manipulation knob 436: Switch knob 450: Brush 455: Rotary motor 464: Wheel member 465: Bearing member 472: Transfer duct 474: Connector 476: Transfer pipe 480: First confining unit 490: Second confining unit 500: Cleaner hose
Claims (11)
1. A cleaning nozzle assembly, comprising:
a lower case having a main inlet and a lower sub-inlet to guide foreign substances and air to be introduced into the lower case, the lower case being open at an upper side thereof and comprising a partition wall isolating the main inlet from the lower sub-inlet and having a connection hole;
an upper case coupled to the lower case to cover the open upper side of the lower case; and
an inflow setting unit setting inflow of foreign substances and air into the lower case through the lower sub-inlet and an upper sub-inlet by opening/closing the connection hole.
2. The cleaning nozzle assembly according to claim 1 , wherein the inflow setting unit comprises:
a plate member reciprocating along the partition wall and having an open hole to open/close the connection hole;
a manipulation knob extending from one side of the plate member; and
a switch knob mounted on the upper case to reciprocate the manipulation knob for opening/closing the connection hole.
3. The cleaning nozzle assembly according to claim 2 , wherein the upper case has a guide wall supporting a lateral portion of the plate member at one side thereof to guide the plate member to reciprocate; and the manipulation knob is provided with a supporting and transferring member to be guided to reciprocate along the other side of the guide wall.
4. The cleaning nozzle assembly according to claim 1 , wherein the main inlet is rotatably provided with a brush, the brush comprising a rotary rod formed of wood to reduce or prevent thermal deformation and bristles disposed on a circumferential surface of the rotary rod to sweep foreign substances into the lower case, the bristles forming a helical trajectory from both sides of the rotary rod toward a predetermined portion within the lower case in an axial direction of the rotary rod to collect foreign substances to the predetermined portion.
5. The cleaning nozzle assembly according to claim 1 , wherein the lower case or the upper case is provided at both sides thereof with ribs, and a wheel member is rotatably provided to each of the ribs and comprises a bearing member provided to the rib, a roller member provided to the bearing member, and a buffer member surrounding a circumferential surface of the roller member.
6. The cleaning nozzle assembly according to claim 1 , wherein the lower case and the upper case are provided with a transfer duct guiding transfer of introduced foreign substances and air and connected to a transfer pipe; and the transfer pipe prevents the lower case from rotating by virtue of a first confining unit when the lower case is lifted up.
7. The cleaning nozzle assembly according to claim 6 , wherein the first confining unit comprises:
a first groove formed on an inner surface of the transfer duct; and
a first protrusion protruding from a circumferential surface of the transfer pipe and received by a corresponding first groove to prevent the lower case from rotating with respect to the transfer pipe.
8. The cleaning nozzle assembly according to claim 1 , wherein the lower case and the upper case are provided with a transfer duct guiding transfer of introduced foreign substances and air and connected to a transfer pipe; a connector is rotatably provided to the transfer duct to connect the transfer pipe to the transfer duct and erect the transfer pipe; and the transfer duct is prevented from rotating in an upright state with respect to the upper case by virtue of a second confining unit.
9. The cleaning nozzle assembly according to claim 8 , wherein the second confining unit comprises:
a second groove formed on the upper case contacting the transfer pipe in an upright state; and
a second protrusion protruding from a circumferential surface of the transfer pipe and received by a corresponding second groove to prevent the transfer pipe from rotating with respect to the upper case.
10. The cleaning nozzle assembly according to claim 1 , wherein a handle is rotatably provided to the upper case, the handle being prevented from protruding outside the upper case.
11. The cleaning nozzle assembly according to claim 1 , wherein the upper case has an upper sub-inlet corresponding to the lower sub-inlet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20140145706A KR101509737B1 (en) | 2014-10-27 | 2014-10-27 | Clean-nozzle assembly and vacuum cleaner |
KR10-2014-0145706 | 2014-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160113458A1 true US20160113458A1 (en) | 2016-04-28 |
Family
ID=53032648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/924,443 Abandoned US20160113458A1 (en) | 2014-10-27 | 2015-10-27 | Cleaning nozzle assembly |
Country Status (2)
Country | Link |
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US (1) | US20160113458A1 (en) |
KR (1) | KR101509737B1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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USD781013S1 (en) * | 2015-05-18 | 2017-03-07 | Sharkninja Operating Llc | Vacuum cleaner head cover |
USD788393S1 (en) * | 2015-05-18 | 2017-05-30 | Sharkninja Operating Llc | Vacuum cleaner head |
US20170209009A1 (en) * | 2016-01-27 | 2017-07-27 | China Manufacturing And Brokerage, Inc. | Vacuum cleaner power nozzle having selectively introduced secondary airflow for operation on carpeted surfaces |
WO2018032616A1 (en) * | 2016-08-15 | 2018-02-22 | 美的集团股份有限公司 | Floor brush of dust collector and dust collector having same |
WO2018032615A1 (en) * | 2016-08-15 | 2018-02-22 | 美的集团股份有限公司 | Floor brush of dust collector and dust collector |
WO2019026888A1 (en) * | 2017-08-01 | 2019-02-07 | 東芝ライフスタイル株式会社 | Suction opening body and electric cleaner |
EP3622870A1 (en) * | 2018-09-13 | 2020-03-18 | Miele & Cie. KG | Floor nozzle with a wheel arrangement, vacuum cleaner with a floor nozzle and method for producing a floor nozzle |
US10667660B2 (en) | 2017-05-18 | 2020-06-02 | Dyson Technology Limited | Suction nozzle |
US11076732B2 (en) * | 2016-04-28 | 2021-08-03 | Samsung Electronics Co., Ltd. | Vacuum cleaner |
US20210251451A1 (en) * | 2020-02-18 | 2021-08-19 | Lg Electronics Inc. | Cleaner and control method thereof |
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Publication number | Priority date | Publication date | Assignee | Title |
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USD781013S1 (en) * | 2015-05-18 | 2017-03-07 | Sharkninja Operating Llc | Vacuum cleaner head cover |
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US10667660B2 (en) | 2017-05-18 | 2020-06-02 | Dyson Technology Limited | Suction nozzle |
WO2019026888A1 (en) * | 2017-08-01 | 2019-02-07 | 東芝ライフスタイル株式会社 | Suction opening body and electric cleaner |
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US20210251451A1 (en) * | 2020-02-18 | 2021-08-19 | Lg Electronics Inc. | Cleaner and control method thereof |
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Legal Events
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AS | Assignment |
Owner name: CONET INDUSTRIES, INC., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SONG, SUNG WOOK;REEL/FRAME:036911/0001 Effective date: 20151023 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |