KR100757383B1 - Nozzle assembly for vacuum cleaner - Google Patents

Abstract

A nozzle assembly for a vacuum cleaner is provided to maintain the contact or non-contact condition of a supplementary brush member selectively by adjusting the height of the supplementary brush member according to the selection of users. A nozzle assembly for a vacuum cleaner comprises a main case, a drum brush, and a supplementary brush unit. The main case is composed of a suction port in which the garbage of a surface to be cleaned flows in. The drum brush is installed at the main case to brush the garbage attached to the surface to be cleaned by being rotated with the surface to be cleaned. The supplementary brush unit includes a supplementary brush member(230) elastically contacted with a cover installed at the front portion of the main case and the surface to be cleaned and to predictably brush the garbage on the surface to be cleaned at the front portion of the drum brush. The supplementary brush member selectively maintains the contact or non-contact condition with the surface to be cleaned by changing the corresponding position for the cover.

Description

Nozzle assembly for vacuum cleaner

1 is a perspective view showing a nozzle assembly according to an embodiment of the present invention,

2 is a cross-sectional view taken along the line II-II shown in FIG. 1;

3 is a perspective view illustrating a part of the auxiliary brush unit in a state in which the cover illustrated in FIG. 1 is removed;

4 is a side view seen from the IV direction shown in FIG.

5 is a partial perspective view showing the auxiliary brush unit in a state in which the cover shown in FIG. 3 is removed;

6 is a perspective view showing a state in which the handle and the fixture shown in FIG.

FIG. 7 is a perspective view illustrating a handle part illustrated in FIG. 6;

8 is a perspective view showing a nozzle assembly showing a case where the handle portion is moved to the right along the guide hole;

9 is a cross-sectional view taken along the line IX-IX shown in FIG. 8;

10 is a view showing the shape of the auxiliary brush according to the present embodiment,

11 is a view showing an auxiliary brush of a different shape from the present embodiment,

12 is a view showing an auxiliary brush of a different shape from the present embodiment.

* Explanation of symbols for the main parts of the drawings *

100 ... Nozzle Assembly 110 ... Main Case

200 ... Auxiliary brush unit 201 ... Guide hole

201a ... Inner circumference 210 ... Cover

210a ... space 220 ... fixed panel

230 ... Auxiliary brush member 231 Auxiliary brush casing

233 ... auxiliary brush 233a ... protrusion

240 ... Height adjustment 241 ... Inclined rail

245a ... plate 245b ... extension tube

245c ... Slant 245d ... Extended

245e ... protrusion jaw 245f ... fixed groove

247 ... knob 247a ... knob

247b ... Extension 247c ... Engagement protrusion

247d.

The present invention relates to a vacuum cleaner, and more particularly, to a nozzle assembly for a vacuum cleaner having an auxiliary brush.

In general, a vacuum cleaner is provided with a nozzle assembly capable of sucking dirt on the surface to be cleaned. The nozzle assembly is a device for sucking dust or dirt on the surface to be cleaned by the suction force generated by the suction motor installed inside the cleaner body while in contact with the surface to be cleaned.

However, among these conventional nozzle assemblies, in particular, the nozzle assembly applied to the upright vacuum cleaner is rotatably hinged to the cleaning main body, and a drum brush is installed inside the dirt suction port to efficiently shake off the dirt on the surface to be cleaned. Therefore, when the drum brush rotates, the dirt on the surface to be cleaned can be effectively separated and sucked.

However, when the carpet is cleaned with the nozzle assembly having the drum brush, there is a problem that the hair of the hair or the pet cannot be removed efficiently. In particular, there is a problem that it is more difficult to separate the hair and the like only by rotating the drum brush when the hair or pet hair is tangled with the hair of the carpet.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a nozzle assembly having an auxiliary brush that can be efficiently cleaned by scratching the hair or pet hair tangled on the carpet.

Another object of the present invention is to provide a nozzle assembly capable of adjusting the height of the auxiliary brush member.

The nozzle assembly disclosed to achieve the object as described above A main case having a suction port through which dirt from the cleaning surface is introduced; A drum brush installed at the main case and rotating in contact with the surface to be cleaned to shake off dirt from the surface to be cleaned; And a front cover installed in front of the main case and preliminarily brushing off dirt on the surface to be cleaned from the front of the drum brush, and having a cover installed in front of the main case and an auxiliary brush member elastically contacting the surface to be cleaned. And an auxiliary brush unit, wherein the auxiliary brush member is selectively maintained in contact or non-contact state with the surface to be cleaned by changing its relative position with respect to the cover.

In addition, the auxiliary brush unit, the fixing panel is connected to the auxiliary brush member; And, by moving the fixing panel up and down, the height adjusting unit for adjusting the height of the auxiliary brush member can be further included.

On the other hand, the height adjustment portion, is installed on the upper surface of the fixing panel, the inclination rail having a plurality of fixing projections; One side is exposed to the outside of the cover, the other side handle portion formed with a coupling projection; It is preferable to include a; and a fixture having a protruding jaw coupled to the inclined rail and the extension tube coupled to the engaging projection.

On the other hand, the auxiliary brush member is an auxiliary brush casing rotatably installed on the fixed panel; And an auxiliary brush coupled to the auxiliary brush casing, wherein the auxiliary brush is detachable from the auxiliary brush casing.

In addition, the auxiliary brush is preferably provided with a plurality of protrusions protruding on the surface toward the surface to be cleaned.

In addition, the cover is preferably installed detachably to the main case.

In addition, the auxiliary brush member is preferably rotatable with respect to the fixed panel.

Hereinafter, with reference to the accompanying drawings will be described in detail a nozzle assembly 100 according to an embodiment of the present invention.

1 and 2, the nozzle assembly 100 according to an embodiment of the present invention includes a main case 110, a drum brush 130, and an auxiliary brush unit 200.

The main case 110 is for inhaling external air including dirt on the surface to be cleaned to be introduced into a vacuum cleaner main body (not shown), and a bottom surface of the main case 110 is provided with a dirt suction port 120 and a main case 110. ) Is connected to the vacuum cleaner body (not shown). When suction power is generated from a vacuum source (not shown) installed in the main body of the vacuum cleaner, the dirt is sucked through the dirt suction port 120 of the main case 110. At this time, the main case 110 is provided with a pair of wheels (105, 106) to facilitate the movement of the nozzle assembly (100).

The drum brush 130 is to shake off dirt contained in the surface to be cleaned while rotating in contact with the surface to be cleaned. To this end, the drum brush 130 is rotatably installed on the dirt suction port 120 side of the main case 110.

The auxiliary brush unit 200 is fixedly installed at the front of the main case 110, and is for preliminarily shaking off dirt on the surface to be cleaned from the front of the drum brush 130.

1 to 5, the auxiliary brush unit 200 includes a cover 210, a fixing panel 220, an auxiliary brush member 230, and a height adjusting part 240.

The cover 210 has a space portion 210a in which the fixing panel 220, the auxiliary brush member 230, and the height adjusting part 240 are installed, as shown in FIG. 2, and the rear end is the front of the main case 110. Is fixed to. At this time, the cover 210 is also of course possible to be detachably coupled to the main case (110). In addition, the cover 210 has a guide hole 201 having a predetermined length along the width direction on the upper surface.

The fixing panel 220 is fixedly installed in the space portion 210a of the cover 210 in a substantially parallel state with the cover 210. In addition, hinge holes 221 (see Fig. 5) are formed at both ends.

The auxiliary brush member 230 is used to scrape the carpet to separate hairs or pet hairs tangled on the carpet, and includes an auxiliary brush casing 231 and an auxiliary brush 233.

The auxiliary brush casing 231 is formed to have a rectangular cross section as shown in FIG. 2, and the auxiliary brush casing 231 may be formed in various shapes and materials according to a purpose of use. In addition, the auxiliary brush casing 231 has hinge protrusions 231a which are hinged to both side hinge holes 221, respectively.

The auxiliary brush 233 is coupled to the lower surface of the auxiliary brush casing 231, and a plurality of protrusions 233a are provided on the lower surface of the auxiliary brush 233 to separate the hair or pet hair tangled on the carpet by scraping the carpet. Is formed. As shown in FIG. 9, each of the plurality of protrusions 233a has a rectangular shape and protrudes from the auxiliary brush 233 toward the cleaning surface. Meanwhile, although the protrusion 233a according to the present embodiment has a rectangular parallelepiped shape as shown in FIG. 10, the protrusion 233b may be formed in a cylindrical shape as shown in FIG. 11, and as shown in FIG. 12, the protrusion 233c is provided. The end of the protruding portion 233c protruding into a cylindrical shape and contacting the surface to be cleaned may be formed in a spherical shape having a diameter larger than that of the cylinder so as to have a round shape. In addition, in the present embodiment, the auxiliary brush 233 and the protrusion 233a are formed of elastic rubber. The auxiliary brush 233 is detachably installed at the lower portion of the auxiliary brush casing 231. Therefore, since only the auxiliary brush 233 which is dirty after use can be separated and cleaned from the auxiliary brush casing 231, maintenance of the auxiliary brush 233 is easy.

The height adjusting unit 240 is to connect the fixing panel 220 and the cover 210 to adjust the height of the auxiliary brush member so that the auxiliary brush member 230 is in contact or non-contact with the surface to be cleaned. 5, the pair of inclination rails 241, a fastener 245 and the handle portion 247 is included.

The pair of inclined rails 241 is fixedly installed along the width direction of the fixing panel 220 in parallel to each other at a predetermined interval on the upper surface of the fixing panel 220. In addition, it is formed to be inclined from one side to the other side, a plurality of fixing projections 243 are formed on the lower outer surface of the pair of inclined rails 241 at predetermined intervals, respectively.

The fastener 245 has a plate 245a having a predetermined width as shown in FIG. 6, and an extension tube 245b having a through hole penetrating the plate 245a is formed downward in the plate 245a. In addition, on both sides of the plate 245a, a pair of extension pieces 245d extending downward in a direction perpendicular to the plate 245a is formed, and the pair of extension pieces 245d respectively protrude inwardly at the bottom as shown in FIG. The jaw 245e is protruded. The pair of protruding jaws 245e are slidably coupled to the inclined rail protrusions 241a formed on the upper and outer sides of the pair of inclined rails 241, respectively. A pair of protruding jaws 245e are provided with fixing grooves 245f to which a plurality of fixing protrusions 243 (see FIG. 5) formed on the pair of inclined rails 241 are snap-coupled.

In addition, an inclined protrusion 245c which is inclined downward at an angle to the inclination angle of the inclined rail 241 is formed on the lower surface of the plate 245a at a position corresponding to the inclined rail 241, and the inclined protrusion 245c allows the plate 245a to be used. ) Is slidably moved in parallel with the fixed panel 220.

As illustrated in FIG. 7, the handle part 247 is provided with a knob 247a that protrudes out of the cover 210 (see FIG. 1), and extends substantially at right angles to the knob 247a on both sides of the lower end of the knob 247a. The part 247b is formed. A pair of coupling protrusions 247c extending downwardly at right angles to the extension portion 247b is formed on the lower surface of the pair of extension portions 247b, and the pair of coupling protrusions 247c are respectively disposed at the lower end in the outward direction. 247d) is formed. The pair of engaging jaws 247d is a pair of engaging projections 247c are inserted into the extension tube 245b of the plate 245a and snap-fit to the lower end of the extension tube 245b, respectively, and the handle portion 247 is a fixture. 245 is stably coupled. In this case, it is preferable to set the length L of the pair of coupling protrusions 247c such that a predetermined gap S is formed as shown in FIG. 6 in a state where the fixture 245 and the handle portion 247 are coupled. Accordingly, the inner peripheral portion 201a (see FIG. 2) of the guide hole 201 is inserted into the space formed by the gap S in a state where the fixture 245 and the handle portion 247 are coupled to each other. When moving along the guide hole 201 (see FIG. 1) in a state in which the handle part 247 is gripped, the fastener 245 may be smoothly moved together with the handle part 247.

Hereinafter, with reference to the drawings the operation description of the case of using the auxiliary brush unit 200 of the nozzle assembly according to an embodiment of the present invention configured as described above are as follows.

First, when the user places the height of the auxiliary brush member 230 to the lowest in order to clean the hair or pet hair deeply embedded in the carpet, the user, as shown in Figs. The knob 247a of the handle portion 247 located on one side of the 201 is gripped and moved to the rightmost side of the guide hole 201 along the guide hole 201.

When the handle portion 247 moves in this way, as shown in FIG. 9, the fastener 245 coupled with the handle portion 247 moves in the same direction as the moving direction of the handle portion 247, and at the same time In the state where the protrusion 245e of the 245 and the protrusion 241a of the inclined rail 241 are slidably coupled, the fixture 245 is slidably moved along the pair of inclined rails 241 to the right. In this case, the cover 210 is fixedly installed, and the handle portion 247 only moves left and right at the same height along the guide hole 201, so that the gap between the inclined rail 241 and the fixing panel 220 is moved to the right. As you move (right side when looking at Figure 3) becomes larger. Accordingly, the fixing panel 220 in which the inclined rails 241 are fixed is moved downward, and thus, the auxiliary brush member 230 hinged to the fixing panel 220 is moved downward by the height of L2 (see FIG. 5). .

In addition, in the process of moving the handle portion 247, a plurality of fixing projections 243 of the inclined rail 241 is snapped and released in the fixing groove 245f of the fixture 245, in this case, the fixing groove ( 245f) and the fixing protrusion 243 formed on the rightmost side, the user lowers the height of the auxiliary brush member 230 to the lowest position so that the auxiliary brush member 230 can penetrate deeply into the carpet. It is possible to stably maintain the fixed state of the auxiliary brush member 230.

In addition, when the user does not use the auxiliary brush member 230, as shown in Figure 1, when the handle portion 247 is positioned to the leftmost (in the direction looking at Figure 1), the auxiliary brush member as described above ( The auxiliary brush member 230 may be positioned at the highest position so that the auxiliary brush member 230 does not come into contact with the surface to be cleaned by an operation opposite to the operation for positioning the bottom 230. In this case, through the coupling of the fixing groove (245f) and the fixing projections 243 formed on the leftmost, as shown in Figure 2, the user is the height of the auxiliary brush member 230 so that the auxiliary brush member 230 does not contact the carpet. After moving up to the highest position, the auxiliary brush member 230 can be stably maintained .

In addition, the nozzle assembly 100 of the present embodiment is to adjust the handle portion 247, the fixing groove 245f is coupled to any of the fixing projections 243 of the fixing projections 243, the user wants The height of the auxiliary brush member 230 may be adjusted. Therefore, the user through the brush assembly according to an embodiment of the present invention, the user can select the height of the auxiliary brush member 230 according to the use or the height of the carpet to the hair or pet hair embedded in the carpet Easy to remove

On the other hand, when the handle portion 247 and the fastener 245 is located on the far left so that the auxiliary brush member 230 is in the highest position, the highest portion of the inclined rail 241, that is, the top of the inclined rail 241 The gap formed between the upper inner surface of the cover 210 and the upper side of the guide rail 241 formed with the guide hole 201a so that the right side does not contact the cover, that is, L3 (see FIG. 9) is the same as L2 (see FIG. 5), or It is desirable to be large.

On the other hand, when the user cleans the carpet while the auxiliary brush member 230 is lowered to a desired position, when the user advances the vacuum cleaner back and forth, the auxiliary brush 233, which is in pressure contact with the carpet, has a frictional force with the carpet. This can result in scraping off tangled hair or pet hair. In this case, as shown in FIG. 4, the auxiliary brush member 230 may be rotated by a predetermined angle around the hinge protrusion 231a to reduce operating resistance of the vacuum cleaner.

As described above, according to the present invention, the auxiliary brush unit is installed on one side of the main case, so that the protrusion formed on the auxiliary brush scratches the hair or pet hair tangled on the carpet, thereby cleaning the carpet more efficiently.

In addition, by adjusting the height of the auxiliary brush member according to the user's selection, there is an effect that the auxiliary brush member can selectively contact or non-contact with the carpet.

While the invention has been shown and described in connection with the preferred embodiments for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (8)

A main case having a suction port through which dirt from the cleaning surface is introduced; A drum brush installed at the main case and rotating in contact with the surface to be cleaned to shake off dirt from the surface to be cleaned; And It is provided in front of the main case preliminarily shake off the dirt on the surface to be cleaned from the front of the drum brush, the auxiliary provided with a cover installed in front of the main case, the auxiliary brush member elastically contacting the surface to be cleaned It includes a brush unit; The auxiliary brush member is a nozzle assembly of the vacuum cleaner, characterized in that to maintain the contact or non-contact state with the surface to be cleaned selectively by changing the position relative to the cover. According to claim 1, wherein the auxiliary brush unit, A fixed panel to which the auxiliary brush member is connected; And, The nozzle assembly of the vacuum cleaner further comprising; a height adjusting unit for adjusting the height of the auxiliary brush member by moving the fixing panel up and down. The method of claim 2, wherein the height adjustment unit, An inclined rail installed on an upper surface of the fixing panel and having a plurality of fixing protrusions; One side is exposed to the outside of the cover, the other side handle portion formed with a coupling projection; And a fixture having a protruding jaw coupled to the inclined rail so as to be slidable, and an extension tube engaged with the engaging protrusion. The auxiliary brush member of claim 2, wherein the auxiliary brush member An auxiliary brush casing rotatably installed on the fixing panel; And An auxiliary brush coupled to the auxiliary brush casing; nozzle assembly of a vacuum cleaner comprising a. The method of claim 4, wherein And the auxiliary brush is detachable from the auxiliary brush casing. The method of claim 4, wherein The auxiliary brush nozzle assembly of the vacuum cleaner, characterized in that it comprises a plurality of protrusions protruding on the surface facing the surface to be cleaned. The cover of any one of claims 1 to 6, wherein Nozzle assembly of the vacuum cleaner, characterized in that detachably installed on the main case. The method according to any one of claims 2 to 6, The auxiliary brush member is a nozzle assembly of the vacuum cleaner, characterized in that the rotatable with respect to the fixed panel.

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