KR20090121655A - Suction nozzle assembly for vacuum cleaner having hair collecting member, vacuum cleaner having same, and hair removal method using same - Google Patents

Abstract

The present invention relates to a suction nozzle assembly of a vacuum cleaner that can easily remove the hair of a pet on a carpet. The suction nozzle assembly according to the present invention is formed to be movable on the cleaning surface, and includes a nozzle body having a dirt suction port, and a hair collection unit installed on the nozzle body, wherein the hair collection unit is in contact with the cleaning surface, and the nozzle It includes a hair collecting member that does not rotate when the body moves, and collects the pet hair of the cleaning surface when the nozzle body moves in either direction. The hair collecting member is preferably formed of a cylindrical hair collection drum.

Description

Suction nozzle assembly usable with vacuum cleaner with hair collecting member, Vacuum cleaner having the same, and Method for removinng hair by using the same}

The present invention relates to a vacuum cleaner, and more particularly, to a suction nozzle assembly capable of efficiently removing hair on a cleaning surface, a vacuum cleaner having the same, and a hair removal method using the suction nozzle assembly.

In general, a vacuum cleaner includes a suction nozzle assembly capable of sucking dirt on the surface to be cleaned together with air.

The suction nozzle assembly is provided with a dirt suction port facing the cleaning surface and suctioning the dirt on the cleaning surface. When the vacuum generating device installed in the cleaner body is operated to generate suction force, dirt on the surface to be cleaned is sucked into the cleaner body through the dirt suction port of the suction nozzle assembly.

However, when cleaning the surface to be cleaned of thin surfaces such as rugs and carpets or the surface of the blood to be cleaned using only suction power, long sludge (such as human hair, pet hair, and thread) embedded in the hair of the surface to be cleaned (hereinafter, Pet hair) cannot be removed efficiently. In order to effectively remove the pet hair, it is preferable to scrape and bundle the pet hair embedded in the hair forming the cleaning surface, and then guide it to the dirt suction port and inhale with suction power.

The present invention has been made in view of the above problems, and a suction nozzle for a vacuum cleaner having a hair collecting member capable of efficiently removing thin and long dirt such as human hair, pet hair, and thread on a surface to be cleaned. An object of the present invention is to provide an assembly, a vacuum cleaner having the same, and a hair removal method using the same.

An object of the present invention as described above is formed so as to be movable on the cleaning surface, the nozzle body having a dirt suction port; And a hair collecting unit installed on the nozzle body, wherein the hair collecting unit is in contact with the surface to be cleaned and does not rotate when the nozzle body moves, and the surface to be cleaned when the nozzle body moves in one direction. It is achieved by providing a suction nozzle assembly for a vacuum cleaner having a hair collection member, characterized in that it comprises a hair collection member for collecting the pet hair.

At this time, the hair collecting member is preferably a hair collection drum formed in a cylindrical shape.

In addition, the hair collection drum is preferably rotated by a predetermined angle when the moving direction of the nozzle body is changed.

In addition, when the nozzle body changes the moving direction, the hair collection drum is preferably rotated within an angle range of 10 degrees to 180 degrees.

The hair collecting unit further includes a drum rotation limiting member, wherein the drum rotation limiting member prevents the hair collecting drum from rotating while the nozzle body moves, and the moving direction of the nozzle body is changed. At this time, the hair collection drum may be formed to rotate at an angle.

The drum rotation limiting member may include: a first ratchet device installed at one end of the hair collection drum and configured to rotate the hair collection drum only in one direction; And a second ratchet device installed at the other end of the hair collection drum and configured to block the hair collection drum from rotating in a direction in which the hair collection drum can rotate by the first ratchet device.

At this time, the first ratchet device, the first ratchet wheel is installed on one end of the hair collection drum; And a ratchet pawl for limiting the rotational direction of the first ratchet wheel.

In addition, the second ratchet device, the second ratchet wheel is installed on the other end of the hair collection drum; And a lever ratchet installed to friction with the cleaning surface and formed to limit a rotation direction of the second ratchet wheel.

In addition, the first and second ratchet device is a rotary ratchet is installed on one end surface of the hair collection drum, respectively; And a fixed ratchet formed to correspond to the rotary ratchet and allowing the rotary ratchet to rotate only in one direction.

In addition, the hair collecting member preferably includes a plurality of protrusions.

In addition, the plurality of protrusions are preferably formed to be inclined with respect to the surface to be cleaned.

In addition, the suction nozzle assembly for the vacuum cleaner may include a drum height adjustment member for adjusting the height of the hair collection drum with respect to the cleaning surface.

At this time, the drum height adjustment member, the first and second support members for supporting both ends of the hair collection drum, the support body elastically; And first and second guide parts for guiding the first and second support members to move up and down with respect to the cleaning surface.

In addition, the hair collecting member may be installed in at least one of the front or rear of the dirt suction port to the nozzle body.

In addition, the hair collecting member may be installed inside the dirt suction port.

In addition, a rotary brush may be rotatably installed at the dirt suction port of the nozzle body.

In another aspect of the present invention, an object of the present invention as described above, the cleaner body having a vacuum generator; And a suction nozzle assembly connected to the cleaner body to suck dirt from the surface to be cleaned, the suction nozzle assembly having any one of the above features.

In another aspect of the present invention, an object of the present invention as described above, the step of moving the hair collection drum of the suction nozzle assembly in the first direction on the cleaning surface to separate and collect the pet hair from the cleaning surface; Changing the moving direction of the hair collection drum from the first direction to the second direction to rotate the hair collection drum at an angle; And moving the hair collection drum in the second direction to suck the collected pet hair into the dirt suction port of the suction nozzle assembly. .

At this time, the step of inhaling the collected pet hair, when moving the hair collection drum in the second direction, the pet hair caught in the plurality of projections of the hair collection drum is separated from the plurality of projections and the surface to be cleaned It may further comprise a step left.

In addition, the hair collection drum is preferably not rotated while the suction nozzle assembly is moving in the first direction or the second direction.

According to the suction nozzle assembly for a vacuum cleaner having a hair collecting member according to an embodiment of the present invention having the structure as described above, a vacuum cleaner having the same, and a hair removal method using the same, the hair collecting member carpets the pet hair. Since it is separated from the surface to be cleaned, such as pet hair separated by the suction force can be easily inhaled.

In addition, since the suction nozzle assembly for a vacuum cleaner having a hair collecting member according to an embodiment of the present invention separates the pet hair embedded in the carpet by using a cylindrical hair collection drum, the hair collection drum is separated from the front of the suction nozzle assembly. In the case of installation in the case, it is possible to reduce the distance between the tip of the suction nozzle assembly and the dirt suction port than in the case of using a flat hair collection member. Therefore, it is possible to reduce the dead space (dead space) does not reach the suction force when using the vacuum cleaner.

In addition, a suction nozzle assembly for a vacuum cleaner having a hair collecting member according to an embodiment of the present invention, a vacuum cleaner having the same, and a hair removal method using the same, every time the direction of movement of the suction nozzle assembly is changed. The part of the hair collection drum that rubs against the surface to be cleaned is changed, thereby extending the life of the hair collection drum.

Hereinafter, a suction nozzle assembly for a vacuum cleaner having a hair collecting member according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

However, in the following description of the present invention, if it is determined that the detailed description of the related known functions or components may unnecessarily obscure the subject matter of the present invention, the detailed description and the detailed illustration will be omitted.

1 is a perspective view illustrating an upright type vacuum cleaner 300 installed with a suction nozzle assembly 310 according to an exemplary embodiment of the present invention, and FIG. 2 is a suction nozzle assembly 310 of the upright type vacuum cleaner 300 of FIG. 1. ) Is the bottom view. Hereinafter, only the case where the suction nozzle assembly 310 for a vacuum cleaner according to an embodiment of the present invention is installed in the upright type vacuum cleaner 300, but the suction nozzle assembly 310 according to an embodiment of the present invention Naturally, it can also be used in canister vacuum cleaners or stick vacuum cleaners.

Referring to FIG. 1, the upright vacuum cleaner 300 includes a cleaner body 301 and a suction nozzle assembly 310.

The cleaner body 301 is installed inside thereof, and includes a vacuum generator (not shown) for generating suction force and a dust collector (not shown) for collecting dirt sucked through the suction nozzle assembly 310. The suction nozzle assembly 310 is connected to the lower end of the cleaner body 301.

1 and 2, the suction nozzle assembly 310 for a vacuum cleaner according to an embodiment of the present invention includes a nozzle body 311 and a hair collecting unit 320.

A dirt suction passage (not shown) is formed inside the nozzle body 311, and a dirt suction port 312 communicating with the dirt suction passage is formed on the bottom surface of the nozzle body 311. The dirt suction passage communicates with a vacuum generator (not shown) provided in the cleaner main body 301. A rotary brush 313 may be rotatably installed at the dirt suction port 312.

In addition, the nozzle body 311 is provided with a pair of wheels 315 to allow the suction nozzle assembly 310 to move on the cleaning surface. The nozzle body 311 is connected to the lower end of the cleaner body 301. When a suction force is generated by a vacuum generator (not shown) installed in the cleaner body 301, the dirt on the surface to be cleaned is sucked through the dirt suction port 312 of the nozzle body 311.

Referring to FIG. 3, the hair collecting unit 320 includes a hair collecting member 330, a drum rotation limiting member 340, and a drum height adjusting member 370.

Hair collection unit 320 is a long thin dirt (hereinafter, pet hair, such as human hair, pet hair, thread, etc.) in the hair of the surface of the cleaning surface (hereinafter referred to as a carpet) covered with hair such as carpet, carpet, etc. Scrape off the pet's fur from the carpet. Such hair collection unit 320 may be installed in the suction nozzle assembly 310 in the front or rear of the dirt suction port (312). The suction nozzle assembly 310 illustrated in FIGS. 1 and 2 shows a case in which the hair collecting unit 320 is installed in front of the dirt suction port 312. In addition, the hair collection unit 320 may be installed inside or outside the dirt suction port 312. 1 and 2 illustrate a case in which the hair collecting unit 320 is installed inside the dirt suction port 312.

The hair collecting member 330 may be formed in various shapes including a plurality of protrusions 331. In the following description, the hair collection member 330 is described as an example of a hair collection drum having a cylindrical shape, but this does not limit the shape of the hair collection member 330.

The hair collection drum 330 is formed in a cylindrical shape, and a plurality of protrusions 331 are formed on the surface of the hair collection drum 330 as shown in FIG. 4. The plurality of protrusions 331 may be formed in various shapes and materials as long as it can function as scraping off the pet hair embedded in the hair of the carpet 303 which is the surface to be cleaned. Lint or felt may be attached to the surface of the hair collection drum 330 as a plurality of protrusions 331. Here, the lint or felt refers to formed so that a plurality of fibers of plastic such as nylon protrude from the base member such as a thin cloth.

The plurality of protrusions 331 may be installed to be inclined with respect to the surface to be cleaned 303. That is, when the tip of each projection 331 touches or approaches the cleaning surface 303, the projection 331 is preferably formed to have an acute angle with respect to the cleaning surface 303. In this case, the plurality of protrusions 331 may form an acute angle α with respect to the surface of the hair collection drum 330.

4 illustrates a case where a plurality of protrusions 331 are installed to form an acute angle α with respect to the surface of the hair collection drum 330. When the plurality of protrusions 331 make an acute angle with respect to the surface of the hair collection drum 330 as described above, the hair collection drum 330 is in the direction in which the plurality of protrusions 331 are acutely angled (the direction opposite to the arrow A). When moved, the pet hair embedded in the hair of the carpet 303 is easily separated by the plurality of protrusions 331. In addition, when the hair collection drum 330 moves in the opposite direction (arrow A direction), the plurality of protrusions 331 may slide and move with respect to the cleaning surface 303. On the other hand, by arranging the ends 331a of the plurality of protrusions 331 in the opposite direction of the arrow A as shown in FIG. 5, the pet hair in the carpet 303 may be more easily separated. FIG. 5 is a view showing a part of the surface of the hair collection drum 330 in a plan view.

The drum rotation limiting member 340 prevents the hair collection drum 330 from rotating when the suction nozzle assembly 320 is moved. However, when the moving direction of the suction nozzle assembly 320 is changed, the hair collection drum 330 is configured to rotate at an angle. When the moving direction of the suction nozzle assembly 320 is changed, the hair collection drum 330 is preferably formed to rotate within an angle range of 10 degrees to 180 degrees. Then, the life of the hair collection drum 330 can be extended.

In the present embodiment, the drum rotation limiting member 340 moves when the suction nozzle assembly 310 moves in the first direction, for example, the direction in which the suction nozzle assembly 310 moves backward (the direction opposite to the arrow A in FIG. 1). , Hair collection drum 330 is not rotated. When the suction nozzle assembly 310 moves in the first direction, the plurality of protrusions 331 of the hair collection drum 330 penetrates into the hair of the carpet 303 and the pet hair carpet in the hair of the carpet 303 Separated from the 303 is pinched in the plurality of projections 331 of the hair collection drum 330.

In addition, the drum rotation limiting member 340 is collected even when the suction nozzle assembly 310 moves in a second direction, for example, a direction in which the suction nozzle assembly 310 moves forward (the arrow A direction in FIG. 1). The drum 330 is not rotated. When the suction nozzle assembly 310 moves in the second direction, the plurality of protrusions 331 of the hair collection drum 330 slides on the upper surface of the carpet 303. At this time, the pet hairs sandwiched between the plurality of protrusions 331 of the hair collection drum 330 are left on the upper surface of the carpet 303 by the friction with the carpet 303.

Referring to Figure 3, such a drum rotation limiting member 340 is installed on the first end surface 332 of the hair collection drum 330, the first ratchet to rotate the hair collection drum 330 in only one direction It is installed on the device 350 and the second end surface 333 of the hair collection drum 330, and prevents the hair collection drum 330 from rotating in a direction that can be rotated by the first ratchet device 350. A second ratchet device 360 is included. For example, the first ratchet device 350 may be configured to allow the hair collection drum 330 to rotate in a clockwise direction and block rotation of the hair collection drum 330 in a counterclockwise direction. At this time, the second ratchet device 360 is configured to allow the hair collection drum 330 to rotate counterclockwise, and to block the clockwise rotation of the hair collection drum 330.

6 and 8, the first ratchet device 350 rotates the first ratchet wheel 351 and the first ratchet wheel 351 installed on the first end surface 332 of the hair collection drum 330. Ratchet pawls 355 restrict the orientation.

The first ratchet wheel 351 is installed to rotate integrally with the hair collection drum 330 coaxially with the hair collection drum 330. The ratchet pawl 355 is installed on the first support member 381 of the drum height adjustment member 370 toward one side of the first ratchet wheel 351. The ratchet pole 355 is installed not to rotate even when the hair collection drum 330 rotates.

On the outer circumference of the first ratchet wheel 351, a plurality of radially inclined teeth 352 are formed. When the first ratchet wheel 351 receives the force in the inclined direction of the inclined 352, the first ratchet wheel 351 is rotated because the inclined 352 of the first ratchet wheel 351 is not caught by the ratchet pole 355 can do. When the first ratchet wheel 351 receives the force in a direction opposite to the inclined direction, one surface 352a of the inclined 352 of the first ratchet wheel 351 is caught by the end 356 of the ratchet pawl 355. One ratchet wheel 351 cannot rotate. Accordingly, the hair collection drum 330 may rotate in the direction of the inclined surface 352b of the first ratchet wheel 351, but may not rotate in the opposite direction. Accordingly, in FIG. 8, the first ratchet wheel 351 is caught by the ratchet pawl 355 in the counterclockwise direction so that the hair collection drum 330 does not rotate, and the first ratchet wheel 351 ratchets in the clockwise direction. Since the pole 355 is not caught, the hair collection drum 330 may rotate. That is, as shown in FIG. 3, when the suction nozzle assembly 310 is pushed forward as shown by arrow A, the hair collection drum 330 is not rotated by the first ratchet device 350, and the suction nozzle assembly 310 is reared. When pulled in the direction opposite to arrow A, the hair collection drum 330 is rotated clockwise by the first ratchet device 350.

7 and 9, the second ratchet device 360 rotates the second ratchet wheel 361 and the second ratchet wheel 361 installed at the second end surface 333 of the hair collection drum 330. It includes a lever ratchet 365 to limit the direction.

The second ratchet wheel 361 is installed to rotate integrally with the hair collection drum 330 coaxially with the hair collection drum 330. On the outer circumference of the second ratchet wheel 361, a plurality of radially inclined teeth 362 are formed. When the inclined 362 of the second ratchet wheel 361 is caught by the upper end 366 of the lever ratchet 365, the second ratchet wheel 361 cannot rotate. The number of inclinations 362 of the second ratchet wheel 361 may be less than the number of inclinations 352 of the first ratchet wheel 351. The number of inclinations 352 of the first ratchet wheel 351 may be formed in multiples of the number of inclinations 362 of the second ratchet wheels 361. For example, when the number of inclinations 362 of the second ratchet wheel 361 is four, the number of inclinations 352 of the first ratchet wheel 351 may be eight or twelve. In the present embodiment, the number of inclinations 362 of the second ratchet wheel 361 is four, and the number of inclinations 352 of the first ratchet wheel 351 is formed to twelve.

In addition, the angle of rotation of the hair collection drum 330 when the direction of movement of the suction nozzle assembly 310 is changed according to the number of inclinations 362 of the second ratchet wheel 361 is determined. When the second ratchet wheel 361 has four inclinations 362 as in this embodiment, when the moving direction of the suction nozzle assembly 310 is changed, the hair collection drum 330 is rotated approximately 90 degrees. . When the hair collection drum 330 is rotated when the moving direction of the suction nozzle assembly 310 is changed, the hair collection drum which was in contact with the cleaning surface 303 immediately before the hair collection drum 330 was rotated ( The portion of 330 is preferably away from the surface to be cleaned 303 and the portion of the new hair collection drum 330 is preferably in contact with the surface to be cleaned 303. Accordingly, the rotation angle of the hair collection drum 330 may be determined according to the area where the hair collection drum 330 contacts the cleaning surface 303. For example, when the center angle (θ, FIG. 4) of the hair collection drum 330 corresponding to the portion of the hair collection drum 330 in contact with the cleaning surface 303 is 50 degrees, the rotation angle of the hair collection drum 330 Can be set to 60 degrees or more, an angle greater than 50 degrees.

As shown in FIGS. 7 and 9, the lever ratchet 365 is rotatably installed around the pivot shaft 369 on the second support member 391 to one side of the second ratchet wheel 361. However, the lever ratchet 365 is installed so as not to rotate even when the hair collection drum 330 rotates. The lower end 367 of the lever ratchet 365 is formed in an arc shape so as to rotate about the pivot axis 369 by friction with the cleaning surface 303. Therefore, when the hair collection drum 330 contacts the cleaning surface 303, the lower end 367 of the lever ratchet 365 also comes into contact with the cleaning surface 303. In this case, the lower end 367 of the lever ratchet 365 may form a plurality of grooves 368 as shown in FIG. 9 to improve friction with the carpet 303.

The top 366 of the lever ratchet 365 is formed such that the inclination of the second ratchet wheel 361 may selectively engage with the 362. Accordingly, as shown in FIG. 9, the suction nozzle assembly 310 in which the hair collection drum 330 is installed in the second direction is disposed with the upper end 366 of the lever ratchet 365 separated from the second ratchet wheel 361. When moving to the direction (arrow A), the lever ratchet 365 slides and moves the surface to be cleaned 303 while being kept separated from the second ratchet wheel 361. At this time, the hair collection drum 330 may rotate in a counterclockwise direction. In this state, when the suction nozzle assembly 310 changes the moving direction and moves in the first direction (the direction opposite to the arrow A), the lever is caused by friction between the lower end 367 of the lever ratchet 365 and the cleaning surface 303. The ratchet 365 rotates about the pivot shaft 359 such that the upper end 366 of the lever ratchet 365 meshes with the inclined 362 of the second ratchet wheel 361. When the upper end 366 of the lever ratchet 365 meshes with the second ratchet wheel 361, the hair collection drum 330 does not rotate.

The drum height adjusting member 370 automatically adjusts the height of the hair collecting drum 330 according to the height of the hair of the carpet 303. The drum height adjusting member 370 includes the first and second supporting members 381 and 391 and the first and second guides. The parts 386 and 396 and elastic members 385 and 395 are included.

The first and second support members 381 and 391 support both ends of the hair collection drum 330 so that the hair collection drum 330 can rotate, and is elastically supported with respect to the nozzle body 311. Support shafts 382 and 392 are formed at upper ends of the first and second support members 381 and 391, and the support shafts 382 and 392 are inserted into the support holes 383 and 393 formed in the nozzle body 311. Elastic members 385 and 395 are provided between the support shafts 382 and 392 and the support holes 383 and 393 to elastically support the first and second support members 381 and 391. Compression springs may be used as the elastic members 385 and 395. On the inner surface of the first support member 381 is a ratchet pawl 355 is rotatably installed as shown in FIG. As shown in FIG. 7, a lever ratchet 365 is rotatably installed by the pivot 369 on the inner surface of the second support member 391. Guide protrusions 384 and 394 are formed on the outer surface of each of the first and second support members 381 and 391.

The first and second guide parts 386 and 396 guide the first and second support members 381 and 391 to move up and down with respect to the cleaning surface 303, and the outer surfaces of the first and second support members 381 and 391. It is formed in the nozzle body 311 to guide the guide projections (384, 394) formed in the. 6 and 7, the first and second guide parts 386 and 396 are formed as long holes capable of receiving the guide protrusions 384 and 394 of the first and second support members 381 and 391.

Hereinafter, the operation of the vacuum cleaner suction nozzle assembly 310 according to the exemplary embodiment having the above structure will be described in detail with reference to FIGS. 8 to 12.

When moving the suction nozzle assembly 310 in the second direction (arrow A direction) as shown in Figure 3, the hair collection drum 330 is the first ratchet device 350 and the drum rotation limiting member 340 and The cleaning surface 303 is slid and moved without rotating by the second ratchet device 360. At this time, the operation of the first and second ratchet devices 350 and 360 of the drum rotation limiting member 340 to block the rotation of the hair collection drum 330 will be described.

When the suction nozzle assembly 310 moves in the second direction, the hair collection drum 330 is subjected to a force to rotate counterclockwise by friction with the cleaning surface 303. At this time, the lower end 367 of the lever ratchet 365 of the second ratchet device 360 is rotated in the direction of the arrow D as shown in FIG. 9 by friction with the cleaning surface 303 so that the lever ratchet 365 is rotated. Since the top 366 is separated from the second ratchet wheel 361, the hair collection drum 330 may rotate. However, as shown in FIG. 8, the ratchet pawl 355 of the first ratchet device 350 blocks the first ratchet wheel 351 from rotating in the counterclockwise direction, so that the hair collection drum 330 can rotate. none. Thus, when the suction nozzle assembly 310 moves in the second direction, the hair collection drum 330 does not rotate.

Meanwhile, since the plurality of protrusions 331 are inclined in the second direction (arrow A) with respect to the cleaning surface 303 as shown in FIG. 4, the suction nozzle assembly 310 is formed on the surface of the hair collection drum 330. When moving in two directions, the hair collection drum 330 slides on the cleaning surface 303.

In this state, when the user moves the suction nozzle assembly 310 in the first direction (the direction opposite to the arrow A) that is opposite from the second direction to the second direction, the hair collection drum 330 is rotated by an angle. That is, the hair collection drum 330 rotates at an angle as soon as the moving direction of the suction nozzle assembly 310 is changed.

When the suction nozzle assembly 310 moving in the second direction moves in the first direction, the hair collection drum 330 receives a force to rotate clockwise by friction with the cleaning surface 303. In this case, since the first ratchet wheel 351 of the first ratchet device 350 is not caught by the ratchet pawl 355, the hair collection drum 330 may rotate in a clockwise direction. In addition, since the lower end 367 of the lever ratchet 365 of the second ratchet device 360 rotates in the direction of arrow E by friction with the cleaning surface 303, the upper end 366 of the lever ratchet 365 is rotated in the second direction. It moves toward the ratchet wheel 361. At this time, since the upper end 366 of the lever ratchet 365 is located behind the first diameter 362-1 of the second ratchet wheel 361, the hair collection drum 330 of the second ratchet wheel 361 It rotates until the 2nd diameter 362-2 catches the upper end 366 of the lever ratchet 365. As shown in FIG. In the present embodiment, since the number of inclinations 362 of the second ratchet wheel 361 is four, the hair collection drum 330 is rotated approximately 90 degrees.

When the suction nozzle assembly 310 moves in the first direction (arrow A), the first ratchet device 350 allows the hair collection drum 330 to rotate, but the second ratchet of the second ratchet device 360 is rotated. Since the second diameter 362-2 of the wheel 361 is caught by the upper end 366 of the lever ratchet 365, the hair collection drum 330 does not rotate but moves in a stopped state.

In this case, since the plurality of protrusions 331 are inclined in the second direction on the surface of the hair collection drum 330 as shown in FIG. 4, the hair collection drum 330 moves when the suction nozzle assembly 310 moves in the first direction. Since the plurality of projections 331 of () is moved in friction with the cleaning surface 303, that is, the carpet, the pet hair (H) between the hair of the carpet 303 is in the carpet 303 as shown in FIG. Separated is sandwiched between the plurality of protrusions 331 of the hair collection drum 330.

Then, when the suction nozzle assembly 310 is moved again in the second direction, the second ratchet device 360 moves the lever ratchet 365 so that the hair collection drum 330 can rotate, but the first ratchet device ( Since the 350 blocks the first ratchet wheel 351 from rotating, the hair collection drum 330 does not rotate. Thus, the hair collection drum 330 slides on the carpet 303. At this time, the collected pet hair (H) caught in the plurality of protrusions 331 of the hair collection drum 330 is a plurality of hair collection drum 330 by friction with the carpet 303 as shown in FIG. It is separated from the two protrusions 331 and remains on the carpet 303. Then, the pet hair H collected by the suction force is sucked into the dirt suction port 312 of the suction nozzle assembly 310.

15 is a cross-sectional view schematically showing another example of the drum rotation limiting member 400 used in the vacuum cleaner suction nozzle assembly 310 according to an embodiment of the present invention.

Referring to FIG. 15, the drum rotation limiting member 400 according to another example includes a first ratchet device 410 and a second ratchet device 420.

The first ratchet device 410 is formed to correspond to the first rotary ratchet 411 and the first rotary ratchet 411 installed on the first end surface of the hair collection drum 330, the first rotary ratchet 411 It includes a first fixed ratchet 418 to rotate only in one direction. The first fixed ratchet 418 is installed on the first support member 381 of the drum height adjustment member 370.

The first rotary ratchet 411 is installed to be axially slidable in the groove 412 formed in the first end surface of the hair collection drum 330, and is compressed in the groove 412 of the hair collection drum 330. It is elastically supported by the spring 414. A plurality of guide grooves 413 are formed at the side of the first rotary ratchet 411, and a plurality of guide grooves 413 of the first rotary ratchet 411 are formed at the side of the groove 412 of the hair collection drum 330. A plurality of guide rails 415 are inserted. Therefore, the first rotary ratchet 411 is slidable in the axial direction of the hair collection drum 330, and the hair collection drum 330 also rotates when the first rotary ratchet 411 rotates.

The first rotary ratchet 411 includes a rotary tooth surface on which a plurality of ratchets 416 are formed in a circular shape on a surface facing the first fixed ratchet 418. Each ratchet 416 of the rotary tooth surface includes an inclined surface and a vertical surface inclined in one direction. The first fixed ratchet 418 includes a plurality of fixed ratchet 419 corresponding to the plurality of ratchet 416 of the first rotary ratchet 411. Accordingly, the first rotary ratchet 411 may rotate in the inclined plane direction of the plurality of ratchets 416, but may not rotate in the opposite direction. That is, when the first rotary ratchet 411 receives a force in the direction of the inclined surface of the ratchet teeth 416, the first rotary ratchet 411 is curled by the fixed ratchet teeth 419 of the first fixed ratchet 418. The first rotary ratchet 411 may rotate while being pushed into the groove 412 of the collection drum 330. However, when the first rotary ratchet 411 receives a force in a direction opposite to the inclined surface direction of the ratchet teeth 416, the ratchet 416 and the first fixed ratchet 418 of the first rotary ratchet 411 is fixed. Since the ratchet 419 meshes with each other, the first rotary ratchet 411 cannot rotate. In the present embodiment, the first ratchet device 410 does not rotate when the suction nozzle assembly 310 (see FIG. 3) moves in the second direction, and the first ratchet 411 does not rotate in the first direction. When moving, the first rotary ratchet 411 is formed to rotate.

The second ratchet device 420 is formed so as to correspond to the second rotary ratchet 421 and the second rotary ratchet 421 installed on the second end surface of the hair collection drum 330, and the second rotary ratchet 421. It includes a second fixed ratchet 428 to rotate only in one direction. The second fixed ratchet 428 is installed on the second support member 391 of the drum height adjustment member 370.

In the second rotary ratchet 421, the number of the plurality of ratchets 426 formed on the rotary tooth surface is smaller than the number of ratchets 416 of the first rotary ratchet 411, and the inclined surface of the ratchet teeth 426 is the first. The ratchet of the rotary ratchet 411 is formed in the same structure as the first rotary ratchet 411 except that the ratchet of the rotary ratchet 411 is formed in the opposite direction to the inclined surface of the ratchet 416. Therefore, in the case of the present embodiment, the second ratchet device 420 is a case in which the second rotary ratchet 421 does not rotate, but moves in the second direction when the suction nozzle assembly 310 moves in the first direction. The second rotary ratchet 421 is formed to rotate.

In addition, when the number of ratchets 416 of the first rotary ratchet 411 and the number of ratchets 426 of the second rotary ratchet 421 are different, when the moving direction of the suction nozzle assembly 310 is changed, The hair hanging drum 330 is rotated by an angle.

The first and second support members 381 and 391 of the drum height adjusting member 370 are guided by the first and second guide parts 386 and 396 installed in the nozzle body 311 of the suction nozzle assembly 310. Since the structures of the first and second support members 381 and 391 have been described above, a detailed description thereof will be omitted.

Hereinafter, an operation of controlling the rotation of the hair collection drum 330 by the drum rotation limiting member 400 used in the suction nozzle assembly 310 according to an embodiment of the present invention will be described with reference to FIG. 15. .

When the suction nozzle assembly 310 moves in the second direction, the hair collection drum 330 is forced to rotate counterclockwise. In this case, since the second ratchet 421 of the second ratchet device 420 rotates in the inclined plane direction, the second ratchet 421 is not caught by the fixed ratchet 429 of the second fixed ratchet 428. can do. However, since the ratchet 416 of the first ratchet 411 is caught by the fixed ratchet 419 of the first fixed ratchet 418, the hair collection drum 330 does not rotate. Do not.

At the moment of changing the moving direction of the suction nozzle assembly 310, that is, at the moment of moving the suction nozzle assembly 310 from the second direction to the first direction, the hair collection drum 330 receives a force to rotate clockwise. At this time, since the first rotary ratchet 411 of the first ratchet device 410 receives a force in the inclined surface direction, the fixed ratchet 419 of the first fixed ratchet 418 is not caught. Therefore, the first rotary ratchet 411 is rotatable. In addition, the vertical plane of the ratchet 426 of the second rotary ratchet 421 of the second ratchet device 420 is a state that the fixed ratchet of the second fixed ratchet 428 is not caught on the vertical plane of the 429. Therefore, the second rotary ratchet 421 can rotate until the male face of the ratchet 426 faces the vertical surface of the fixed ratchet 429 of the second fixed ratchet 428. Thus, the hair collection drum 330 may rotate at an angle. When four ratchets 426 of the second rotary ratchet 421 are formed, the hair collection drum 330 may rotate about 90 degrees when the moving direction is changed.

When the vertical surface of the ratchet 426 of the second rotary ratchet 421 of the second ratchet device 420 is caught by the fixed ratchet 429 of the second fixed ratchet 428, the rotation of the second rotary ratchet 421 is stopped. Is stopped. Thus, the hair collection drum 330 also stops rotating. In this state, the hair collection drum 330 does not rotate even if the suction nozzle assembly 310 continues to move in the first direction.

Hereinafter, with reference to the accompanying Figure 16, a hair removal method using the suction nozzle assembly 310 according to an embodiment of the present invention will be described.

When the suction nozzle assembly 310 is moved in the first direction on the cleaning surface such as the carpet 303, the hair collection drum 330 of the suction nozzle assembly 310 moves in the first direction on the cleaning surface 303. Pet hair is separated from the carpet to be cleaned 303 (S10). The separated pet hair is caught in the plurality of protrusions 331 of the hair collection drum 330.

When the user moves the suction nozzle assembly 310 in the opposite direction, the moving direction of the hair collection drum 330 of the suction nozzle assembly 310 is changed from the first direction to the second direction, the hair collection drum 330 is The first and second ratchet devices 350 and 360 of the drum rotation limiting member 340 rotate at a predetermined angle (S20).

When the suction nozzle assembly 310 is continuously moved in the second direction, the hair collection drum 330 of the suction nozzle assembly 310 is also continuously moved in the second direction, so that the plurality of protrusions 331 of the hair collection drum 330 are moved. ), That is, the collected pet hair is separated and sucked into the dirt suction port 312 of the suction nozzle assembly 310. At this time, the collected pet hair caught in the plurality of protrusions 331 of the hair collection drum 330 is separated from the plurality of protrusions 331 by friction with the cleaning surface 303 and remains on the cleaning surface 303. .

While the suction nozzle assembly 310 moves in the first or second direction, the hair collection drum 330 does not rotate and remains stationary.

The present invention is not limited to the above-described specific embodiments, and simple components that can be carried out by those skilled in the art without departing from the spirit of the present invention described in the claims below. Substitutions, additions, deletions, and alterations of are within the scope of the claims.

1 is a perspective view showing an upright vacuum cleaner having a suction nozzle assembly having a hair collecting member according to an embodiment of the present invention;

FIG. 2 is a bottom view of the suction nozzle assembly of the upright vacuum cleaner of FIG. 1; FIG.

3 is a partial perspective view of a suction nozzle assembly for a vacuum cleaner having a hair collecting member according to an embodiment of the present invention;

Figure 4 is a cross-sectional view showing a plurality of projections of the hair collection drum used in the suction nozzle assembly for a vacuum cleaner according to an embodiment of the present invention,

5 is a plan view showing a part of the surface of the hair collection drum used in the suction nozzle assembly for the vacuum cleaner according to an embodiment of the present invention,

Figure 6 is a side view of the hair collecting unit of the suction nozzle assembly of Figure 3 seen from arrow B,

7 is a side view of the hair collecting unit of the suction nozzle assembly of FIG. 3 seen from arrow C, FIG.

Figure 8 is a view excluding the drum height adjustment member in Figure 6, a cross-sectional view showing a state in which the first ratchet device does not rotate the hair collection drum,

9 is a view excluding the drum height adjustment member in Figure 7, a cross-sectional view showing a state in which the second ratchet device to rotate the hair collection drum,

10 is a cross-sectional view showing a state in which the lever ratchet of the second ratchet device of FIG.

11 is a cross-sectional view showing a state in which the first ratchet device of FIG. 8 enables the hair collection drum to rotate;

12 is a cross-sectional view showing a state in which the hair collection drum is fixed to prevent rotation by the lever ratchet of the second ratchet device of FIG. 10;

FIG. 13 is a conceptual view illustrating a state in which a pet hair is collected inside a carpet by a hair collecting member when the suction nozzle assembly for a vacuum cleaner having a hair collecting member moves in a first direction on the carpet according to an embodiment of the present invention; ,

14 is a conceptual view illustrating a state in which a pet hair collected by a hair collecting member is separated when a suction nozzle assembly for a vacuum cleaner having a hair collecting member moves in a second direction on a carpet according to an embodiment of the present invention;

15 is a cross-sectional view schematically showing another example of the drum rotation limiting member used in the suction nozzle assembly for the vacuum cleaner according to an embodiment of the present invention;

16 is a flow chart showing a hair removal method using the suction nozzle assembly according to an embodiment of the present invention.

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

300; Upright vacuum cleaner 301; Cleaner body

310; Suction nozzle assembly 311; Nozzle body

312; Dirt intake 313; Rotary brush

320; Hair collection unit 330; Hair collection member, hair collection drum

340,400; Drum rotation limiting members 350,360; Ratchet Device

351; Ratchet wheel 355; Ratchet pole

365; Lever ratchet 369; Pivot

370; Drum height adjustment members 381,391; Support member

382,392; Support shafts 385,395; Elastic member

386,396; Guides 411, 412; Rotary ratchet

412; Groove 414; spring

416,426; Ratchets of rotating ratchets 418,428; Fixed Ratchet

419,429; Fixed ratchet of fixed ratchet

Claims (20)

A nozzle body formed to be movable on the cleaning surface and having a dirt suction port; And Includes; Hair collection unit is installed in the nozzle body, The hair collecting unit is in contact with the surface to be cleaned and does not rotate when the nozzle body moves, and includes a hair collecting member for collecting the pet hair of the surface to be cleaned when the nozzle body moves in one direction. Suction nozzle assembly for vacuum cleaner having a hair collecting member. The method of claim 1, The hair collecting member is a suction nozzle assembly for a vacuum cleaner having a hair collection member, characterized in that the hair collection drum formed in a cylindrical shape. The method of claim 2, The hair collection drum is a suction nozzle assembly for a vacuum cleaner having a hair collection member, characterized in that rotated by a certain angle when the moving direction of the nozzle body is changed. The method of claim 3, wherein When the nozzle body changes the direction of movement, the hair collection drum is rotated within an angle range of 10 degrees to 180 degrees, suction nozzle assembly for a vacuum cleaner having a hair collection member. The method of claim 2, The hair collecting unit further includes a drum rotation limiting member, The drum rotation limiting member is characterized in that the hair collection drum is not rotated while the nozzle body is moving, and the hair collection drum is formed to rotate at an angle when the moving direction of the nozzle body is changed. Suction nozzle assembly for vacuum cleaner having a collecting member. The method of claim 5, wherein The drum rotation limiting member, A first ratchet device installed at one end of the hair collection drum and configured to rotate the hair collection drum only in one direction; And A second ratchet device installed at the other end of the hair collection drum and configured to block the hair collection drum from rotating in a direction in which the hair collection drum can be rotated by the first ratchet device. Suction nozzle assembly for vacuum cleaner having. The method of claim 6, The first ratchet device, A first ratchet wheel installed at one end of the hair collection drum; And And a ratchet pawl for restricting the rotational direction of the first ratchet wheel. The method of claim 6, The second ratchet device, A second ratchet wheel installed at the other end of the hair collection drum; And And a lever ratchet installed to friction with the surface to be cleaned, the lever ratchet being configured to limit a rotational direction of the second ratchet wheel. The method of claim 6, The first and second ratchet devices are respectively A rotary ratchet installed on one end of the hair collection drum; And And a fixed ratchet formed to correspond to the rotary ratchet, wherein the rotary ratchet rotates in only one direction. The method of claim 1, The hair collecting member is a suction nozzle assembly for a vacuum cleaner having a hair collection member, characterized in that it comprises a plurality of projections. The method of claim 10, And said plurality of protrusions are formed so as to be inclined with respect to said cleaning surface. The method of claim 2, And a drum height adjustment member for adjusting a height of the hair collection drum with respect to the cleaning surface. The method of claim 12, The drum height adjusting member, First and second support members supporting both ends of the hair collection drum and being elastically supported with respect to the nozzle body; And And first and second guide parts for guiding the first and second support members to move up and down with respect to the surface to be cleaned, wherein the suction nozzle assembly for a vacuum cleaner having a hair collection member. The method of claim 1, The hair collecting member is a suction nozzle assembly for a vacuum cleaner having a hair collecting member, characterized in that installed in at least one of the front or rear of the dirt suction port to the nozzle body. The method of claim 1, The hair collecting member is a suction nozzle assembly for a vacuum cleaner having a hair collection member, characterized in that installed inside the dirt suction port. The method of claim 1, Suction nozzle assembly for a vacuum cleaner having a hair collection member, characterized in that the rotary brush is rotatably installed in the dirt suction port of the nozzle body. A cleaner body having a vacuum generator; And A vacuum cleaner comprising: a suction nozzle assembly according to any one of claims 1 to 16, connected to the cleaner body to suck dirt from a surface to be cleaned. Moving the hair collection drum of the suction nozzle assembly in a first direction on the cleaning surface to separate and collect the pet hair from the cleaning surface; Changing the moving direction of the hair collection drum from the first direction to the second direction to rotate the hair collection drum at an angle; And And moving the hair collection drum in the second direction to suck the collected pet hair into the dirt suction port of the suction nozzle assembly. The method of claim 18, Inhaling the collected pet hair, When the hair collection drum is moved in the second direction, the pet hair caught in the plurality of protrusions of the hair collection drum is separated from the plurality of protrusions, and further comprising the step of remaining on the surface to be cleaned. Hair removal method using the assembly. The method of claim 18, And the hair collection drum does not rotate while the suction nozzle assembly is moving in the first or second direction.

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