KR101476156B1 - 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 - Google Patents

Abstract

The present invention relates to a suction nozzle assembly for a vacuum cleaner which can easily remove the hair of a pet in a carpet. The suction nozzle assembly according to the present invention includes a nozzle body formed to be movable on a surface to be cleaned and equipped with a dust inlet and a hair collection unit installed on the nozzle body. The hair collection unit is in contact with the surface to be cleaned, And a hair collecting member for collecting the pet hair on the surface to be cleaned when the nozzle body moves in any one direction without rotating when the body moves. The hair-collecting member is preferably formed of a cylindrical hair-collecting drum.

A hair collecting drum, a drum rotation limiting member, a drum height adjusting member, a ratchet device,

Description

Technical Field [0001] The present invention relates to a suction nozzle assembly for a vacuum cleaner having a hair collecting member, a vacuum cleaner having the same, and a hair removing method using the vacuum cleaner. the same}

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

Generally, a vacuum cleaner has 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 dust inlet which faces the surface to be cleaned and sucks dirt on the surface to be cleaned. When the vacuum generating device installed on the cleaner body operates to generate a suction force, the dust on the surface to be cleaned is sucked into the cleaner body through the dust suction port of the suction nozzle assembly.

However, in the case of cleaning a surface to be cleaned, such as a carpet or a carpet, which is covered only with a suction force using a suction force, it is difficult to clean the surface of the object to be cleaned by using thinner dirt such as a human hair, Quot; pet hair ") can not be efficiently removed. In order to effectively remove the pet hair, it is preferable that the pet hairs embedded in the fur forming the surface to be cleaned are scraped off and then bundled so as to be guided toward the dirt suction port and suctioned by the suction force.

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

According to an aspect of the present invention, there is provided a nozzle body comprising: a nozzle body formed to be movable on a surface to be cleaned, the nozzle body having a dust inlet; And a hair collection unit installed on the nozzle body, wherein the hair collection unit is in contact with the surface to be cleaned and does not rotate when the nozzle body moves, and when the nozzle body moves in any one direction, And a hair-collecting member for collecting the pet hair of the hair-collecting member.

At this time, the hair-collecting member is preferably a cylindrical hair-collecting drum.

Further, it is preferable that the hair-collecting drum rotates at a predetermined angle when the moving direction of the nozzle body is changed.

In addition, when the nozzle body changes the moving direction, it is preferable that the hair-collecting drum rotates within an angle range of 10 degrees to 180 degrees.

The hair-collecting unit may further include a drum rotation restricting member, wherein the drum rotation restricting member prevents the hair-collecting drum from rotating while the nozzle body moves, and the direction of movement of the nozzle body is changed The hair-collecting drum may be formed to rotate at a predetermined angle.

The drum rotation restricting member may include a first ratchet device installed at one end of the hair-collecting drum, the first ratchet device configured to rotate the hair-removing drum only in one direction; And a second ratchet device installed at the other end of the hair-collecting drum and configured to block rotation of the hair-collecting drum in a direction in which the hair-collecting drum can be rotated by the first ratchet device.

The first ratchet device includes a first ratchet wheel installed at one end of the hair-collecting drum; And a ratchet pawl that restricts the rotational direction of the first ratchet wheel.

The second ratchet device may further include: a second ratchet wheel provided at the other end of the hair-removing drum; And a lever ratchet installed to frictionally engage with the surface to be cleaned and configured to limit the rotational direction of the second ratchet wheel.

The first ratchet device and the second ratchet device may include a rotating ratchet installed on one end surface of the hair-collecting drum, And a fixed ratchet that is formed to correspond to the rotating ratchet and allows the rotating ratchet to rotate in only one direction.

It is preferable that the hair-collecting member includes a plurality of projections.

The plurality of protrusions may be formed to be inclined with respect to the surface to be cleaned.

In addition, the suction nozzle assembly for a vacuum cleaner may include a drum height adjusting member for adjusting a height of the hair-collecting drum relative to the surface to be cleaned.

At this time, the drum height adjusting member includes first and second supporting members that support both ends of the hair-collecting drum and are elastically supported with respect to the nozzle body; And first and second guiding portions guiding the first and second supporting members to move up and down with respect to the surface to be cleaned.

Further, the hair-collecting member may be provided on the nozzle body at least one of the front or rear of the dirt suction port.

Further, the hair-collecting member may be provided inside the dirt suction port.

A rotary brush may be rotatably installed on the dirt suction port of the nozzle body.

According to another aspect of the present invention, there is provided a vacuum cleaner comprising: a vacuum cleaner main body having a vacuum generator; And a suction nozzle assembly connected to the cleaner main body and sucking dirt from a surface to be cleaned, the suction nozzle assembly having any one of the characteristics described above.

According to another aspect of the present invention, there is provided a method of cleaning a hair removing drum, comprising: moving a hair-removing drum of a suction nozzle assembly in a first direction on a surface to be cleaned to separate and collect pet hair from the surface to be cleaned; Changing the moving direction of the hair-collecting drum from the first direction to the second direction to rotate the hair-collecting drum at a constant angle; And a step of moving the hair-collecting drum in the second direction to suck the collected hairs of the pet into the dirt suction port of the suction nozzle assembly, thereby providing a hair removing method using the suction nozzle assembly. .

At this time, the step of sucking the collected pet hairs may include a step of moving the hair-collecting drum in the second direction to separate pet hairs caught by a plurality of projections of the hair-collecting drum from the plurality of projections, In the second step.

In addition, it is preferable that the hair-removing drum does not rotate 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 the hair-collecting member according to an embodiment of the present invention, the vacuum cleaner having the same, and the hair removing method using the same, the hair- So that the pet hairs separated by the suction force can be easily sucked.

In addition, the suction nozzle assembly for a vacuum cleaner having the hair-collecting member according to an embodiment of the present invention separates pet hairs embedded in the carpet by using a cylindrical hair-collecting drum, so that the hair- The distance between the tip of the suction nozzle assembly and the dirt suction port can be reduced as compared with the case of using the flat hair fountain member. Therefore, it is possible to reduce a dead space in which a suction force is not applied when using a vacuum cleaner.

Further, 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 removing method using the same, The life of the hair-collecting drum can be extended because the portion of the hair-collecting drum which is in contact with the surface to be cleaned is changed.

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.

In the following description, well-known functions or components are not described in detail to avoid obscuring the subject matter of the present invention.

FIG. 1 is a perspective view of an upright type vacuum cleaner 300 having a suction nozzle assembly 310 according to an embodiment of the present invention. FIG. 2 is a perspective view of a suction nozzle assembly 310 of the upright type vacuum cleaner 300 of FIG. FIG. Hereinafter, a suction nozzle assembly 310 for a vacuum cleaner according to an embodiment of the present invention will be described. However, the suction nozzle assembly 310 according to an embodiment of the present invention is not limited to the vacuum cleaner 300, It is of course also possible to use it in a canister type vacuum cleaner or a stick type vacuum cleaner.

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

The cleaner main body 301 includes a vacuum generator (not shown) for generating a suction force and a dust collecting device (not shown) for collecting dust that has been sucked through the suction nozzle assembly 310. A suction nozzle assembly 310 is connected to the lower end of the cleaner main body 301.

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

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

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

3, the hair collecting unit 320 includes a hair collecting member 330, a drum rotation restricting member 340, and a drum height regulating member 370. As shown in FIG.

The hair collecting unit 320 may be a hair collecting unit that collects hair dirt such as hair of a person in a hair of a surface to be cleaned (hereinafter referred to as carpet) covered with fur, such as carpet, carpet, Quot;) to separate the pet hairs from the carpet. The hair collecting unit 320 may be installed in front of or behind the dust inlet 312 in the suction nozzle assembly 310. In the case of the suction nozzle assembly 310 shown in FIGS. 1 and 2, the hair collecting unit 320 is installed in front of the dust inlet 312. The hair collecting unit 320 may be installed inside or outside the dust inlet 312. Fig. 1 and Fig. 2 show a case where the hair collecting unit 320 is installed inside the dirt suction port 312. Fig.

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

The hair-collecting drum 330 is formed in a cylindrical shape, and a plurality of projections 331 are formed on the surface of the hair-collecting drum 330 as shown in FIG. The plurality of protrusions 331 scrape pet hairs embedded in the hair of the carpet 303, which is a surface to be cleaned, and may be formed in various shapes and materials as long as they can perform the same function. A lint or a felt can be attached to the surface of the hair-collecting drum 330 as a plurality of projections 331. [ Here, the lint or felt refers to a base member such as a thin cloth, and a plurality of fibers made of plastic such as nylon are formed to protrude.

The plurality of protrusions 331 can be inclined with respect to the cleaning surface 303. That is, when the tip of each protrusion 331 touches or comes close to the cleaning surface 303, it is preferable that the protrusion 331 is formed at an acute angle with respect to the cleaning surface 303. In this case, the plurality of projections 331 form an acute angle? With respect to the surface of the hair-collecting drum 330.

Fig. 4 shows a case where a plurality of projections 331 are provided so as to form an acute angle? With respect to the surface of the hair-collecting drum 330. Fig. When the plurality of projections 331 are formed at an acute angle with respect to the surface of the hair-collecting drum 330, the plurality of projections 331 of the hair-collecting drum 330 are arranged in a direction When moved, the pet hairs embedded in the fur of the carpet 303 are easily separated by the plurality of projections 331. In addition, when the hair-removing drum 330 moves in the opposite direction (the direction of the arrow A), the plurality of projections 331 can slide and move relative to the surface to be cleaned 303. On the other hand, if the end portions 331a of the plurality of projections 331 are arranged to extend in the direction opposite to the arrow A as shown in Fig. 5, the pet hairs in the carpet 303 can be more easily separated. 5 is a plan view of a part of the surface of the hair-collecting drum 330. FIG.

The drum rotation restricting member 340 prevents the hair-collecting 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-collecting drum 330 is configured to rotate at a certain angle. When the moving direction of the suction nozzle assembly 320 is changed, it is preferable that the hair-collecting drum 330 is formed so as to be rotatable within an angle range of 10 to 180 degrees. Thus, the life of the hair-collecting drum 330 can be prolonged.

In this embodiment, the drum rotation restricting member 340 moves the suction nozzle assembly 310 in the first direction, for example, in the direction in which the suction nozzle assembly 310 is retracted (the direction opposite to the arrow A in Fig. 1) So that the hair-collecting drum 330 is not rotated. When the suction nozzle assembly 310 moves in the first direction, a plurality of protrusions 331 of the hair-collecting drum 330 dig into the fur of the carpet 303 and the pet hairs in the fur of the carpet 303, And is inserted into the plurality of projections 331 of the hair-collecting drum 330.

The drum rotation restricting member 340 is also capable of restricting the rotation of the suction nozzle assembly 310 when the suction nozzle assembly 310 moves in the second direction, for example, in the direction in which the suction nozzle assembly 310 advances Thereby preventing the drum 330 from rotating. When the suction nozzle assembly 310 moves in the second direction, the plurality of projections 331 of the hair-collecting drum 330 slip past the upper surface of the carpet 303. At this time, the pet hairs sandwiched between the plurality of projections 331 of the hair-collecting drum 330 escape from the plurality of projections 331 due to friction with the carpet 303, and remain on the upper surface of the carpet 303.

3, the drum rotation restricting member 340 is installed on the first end face 332 of the hair-collecting drum 330 and has a first ratchet (not shown) for allowing the hair-collecting drum 330 to rotate in one direction only, The apparatus 350 is installed on the second end face 333 of the hair-collecting drum 330 and blocks rotation of the hair-collecting drum 330 in a direction rotatable by the first ratchet device 350 And a second ratchet device (360). For example, the first ratchet device 350 may be configured to allow the hair-collecting drum 330 to rotate in a clockwise direction and to block rotation in a counter-clockwise direction. At this time, the second ratchet device 360 is configured to allow the hair-collecting drum 330 to rotate counterclockwise, and to prevent the clockwise rotation.

6 and 8, the first ratchet device 350 includes a first ratchet wheel 351 mounted on a first end face 332 of the hair-collecting drum 330, And a ratchet pawl 355 that limits the direction.

The first ratchet wheel 351 is installed to rotate integrally with the hair-collecting drum 330 coaxially with the hair-collecting drum 330. The ratchet pawl 355 is installed on the first support member 381 of the drum height adjusting member 370 to one side of the first ratchet wheel 351. The ratchet pawl 355 is installed so that the hair-removing drum 330 does not rotate even when rotated.

A plurality of inclined teeth 352 are radially formed on the outer periphery of the first ratchet wheel 351. When the first ratchet wheel 351 receives a force in the oblique direction of the oblique leg 352, the oblique leg 352 of the first ratchet wheel 351 is not caught by the ratchet pawl 355, can do. When the first ratchet wheel 351 receives a force in a direction opposite to the tilt direction, one surface 352a of the tilt 352 of the first ratchet wheel 351 is caught by the end 356 of the ratchet pawl 355, 1 ratchet wheel 351 can not rotate. Therefore, the hair-collecting drum 330 can rotate in the direction of the inclined surface 352b of the inclined teeth 352 of the first ratchet wheel 351, but can not rotate in the opposite direction. 8, the first ratchet wheel 351 is caught by the ratchet pawl 355, so that the hair-collecting drum 330 does not rotate and the first ratchet wheel 351 rotates clockwise, The hair collecting drum 330 can be rotated because it is not caught by the pawl 355. 3, when the suction nozzle assembly 310 is pushed forward as shown by the arrow A, the hair-catching drum 330 is not rotated by the first ratchet device 350, and the suction nozzle assembly 310 is moved rearward (The direction opposite to the arrow A), the hair-catcher drum 330 is rotated clockwise by the first ratchet device 350. [

7 and 9, the second ratchet device 360 includes a second ratchet wheel 361 mounted on the second end face 333 of the hair-collecting drum 330, And a lever ratchet 365 that limits the direction.

The second ratchet wheel 361 is installed to rotate integrally with the hair-collecting drum 330 coaxially with the hair-collecting drum 330. A plurality of inclined teeth 362 are radially formed on the outer periphery of the second ratchet wheel 361. The second ratchet wheel 361 can not rotate when the bevel 362 of the second ratchet wheel 361 is caught by the upper end 366 of the lever ratchet 365. [ It is preferable that the number of the inclined teeth 362 of the second ratchet wheel 361 is smaller than the number of the inclined teeth 352 of the first ratchet wheel 351. The number of the inclined teeth 352 of the first ratchet wheel 351 may be a multiple of the number of the inclined teeth 362 of the second ratchet wheel 361. For example, when the number of the inclined teeth 362 of the second ratchet wheel 361 is four, the number of the inclined teeth 352 of the first ratchet wheel 351 can be eight or twelve. In this embodiment, the number of the inclined teeth 362 of the second ratchet wheel 361 is four, and the number of the inclined teeth 352 of the first ratchet wheel 351 is twelve.

The angle at which the hair-collecting drum 330 rotates is determined when the moving direction of the suction nozzle assembly 310 is changed according to the number of the inclinations 362 of the second ratchet wheel 361. When the second ratchet wheel 361 has four inclined teeth 362 as in the present embodiment, the hair collecting drum 330 is rotated by about 90 degrees when the moving direction of the suction nozzle assembly 310 is changed . The angle at which the hair-collecting drum 330 rotates when the suction nozzle assembly 310 is changed in the direction of movement is determined by the angle of rotation of the hair-collecting drum 330 330 is away from the cleaning surface 303 and the portion of the new hair-collecting drum 330 is in contact with the cleaning surface 303. Accordingly, the rotation angle of the hair-collecting drum 330 can be determined according to the area of the hair-collecting drum 330 contacting the cleaning surface 303. 4) of the hair-collecting drum 330 corresponding to the portion of the hair-collecting drum 330 contacting the cleaning surface 303 is 50 degrees, the rotational angle of the hair-collecting drum 330 Can be set to 60 degrees or more, which is an angle larger than 50 degrees.

The lever ratchet 365 is rotatably mounted on the second support member 391 to one side of the second ratchet wheel 361, as shown in Figs. 7 and 9, about the pivot shaft 369. [ However, the lever ratchet 365 is installed so as not to rotate even when the hair-removing drum 330 rotates. The lower end 367 of the lever ratchet 365 is formed in an arc shape so as to rotate around the pivot shaft 369 by friction with the cleaning surface 303. The lower end 367 of the lever ratchet 365 also comes into contact with the surface to be cleaned 303 when the hair collecting drum 330 contacts the surface to be cleaned 303. [ At this time, the lower end 367 of the lever ratchet 365 can form a plurality of grooves 368 as shown in FIG. 9 to improve the friction with the carpet 303 and the like.

The upper end 366 of the lever ratchet 365 is configured to selectively engage the bevel 362 of the second ratchet wheel 361. 9, when the upper end 366 of the lever ratchet 365 is separated from the second ratchet wheel 361 and the suction nozzle assembly 310 equipped with the hair-collecting drum 330 is rotated in the second direction (In the direction of arrow A), the lever ratchet 365 slides and moves on the surface to be cleaned 303 while keeping the state separate from the second ratchet wheel 361. At this time, the hair-collecting drum 330 can rotate in the counterclockwise direction. In this state, when the suction nozzle assembly 310 changes its moving direction and moves in the first direction (the direction opposite to the arrow A), the lower end 367 of the lever ratchet 365 and the surface to be cleaned 303, The ratchet 365 rotates about the pivot axis 359 such that the upper end 366 of the lever ratchet 365 engages the bevel 362 of the second ratchet wheel 361. When the upper end 366 of the lever ratchet 365 is engaged with the second ratchet wheel 361, the hair-collecting drum 330 does not rotate.

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

The first and second supporting members 381 and 391 support both ends of the hair-collecting drum 330 so that the hair-collecting drum 330 can rotate, and are elastically supported with respect to the nozzle body 311. Supporting shafts 382 and 392 are formed at the 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. Between the support shafts 382 and 392 and the support holes 383 and 393, elastic members 385 and 395 are provided to elastically support the first and second support members 381 and 391. As the elastic members 385 and 395, a compression spring can be used. On the inner surface of the first support member 381, a ratchet pawl 355 is rotatably installed as shown in FIG. On the inner surface of the second support member 391, a lever ratchet 365 is rotatably provided by a pivot 369 as shown in Fig. Guide protrusions 384 and 394 are formed on the outer surfaces of the first and second support members 381 and 391, respectively.

The first and second guide portions 386 and 396 guide the first and second support members 381 and 391 to move up and down with respect to the surface to be cleaned 303. The first and second guide portions 386 and 396 guide the outer surface of the first and second support members 381 and 391 The guide protrusions 384 and 394 formed on the nozzle body 311 are guided. Referring to FIGS. 6 and 7, the first and second guide portions 386 and 396 are formed as slots that can receive the guide projections 384 and 394 of the first and second support members 381 and 391, respectively.

Hereinafter, the operation of the suction nozzle assembly 310 for a vacuum cleaner according to one embodiment of the present invention will be described in detail with reference to FIGS. 8 to 12. FIG.

3, when the suction nozzle assembly 310 is moved in the second direction (the direction of the arrow A), the hair-collecting drum 330 includes the first ratchet device 350 as the drum rotation restricting member 340, The second ratchet device 360 slides and moves on the surface to be cleaned 303 without rotating. 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-collecting drum 330 will now be described.

When the suction nozzle assembly 310 moves in the second direction, the hair-collecting drum 330 is forced 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 arrow D as shown in Fig. 9 by friction with the cleaning surface 303, The upper drum 366 is separated from the second ratchet wheel 361, so that the hair-collecting drum 330 can rotate. However, as shown in FIG. 8, since the ratchet pawl 355 of the first ratchet device 350 blocks the first ratchet wheel 351 from rotating counterclockwise, the hair-collecting drum 330 can rotate none. Therefore, when the suction nozzle assembly 310 moves in the second direction, the hair-collecting drum 330 does not rotate.

4, the plurality of protrusions 331 are provided on the surface of the hair-collecting drum 330 so as to be inclined in the second direction (arrow A) with respect to the surface to be cleaned 303, When moving in two directions, the hair-collecting drum 330 slides on the cleaning surface 303 and moves.

In this state, when the user moves the suction nozzle assembly 310 in the first direction (the direction opposite to the arrow A) opposite to the second direction in the second direction, the hair-removing drum 330 rotates at a certain angle. That is, when the moving direction of the suction nozzle assembly 310 is changed, the hair-removing drum 330 rotates at a certain angle.

When the suction nozzle assembly 310 moving in the second direction moves in the first direction, the hair-collecting drum 330 receives a force to rotate clockwise by friction with the cleaning surface 303. At this time, since the first ratchet wheel 351 of the first ratchet device 350 is not caught by the ratchet pawl 355, the hair-collecting drum 330 can rotate clockwise. The lower end 367 of the lever ratchet 365 of the second ratchet device 360 is rotated in the direction of the arrow E by friction with the cleaning surface 303 so that the upper end 366 of the lever ratchet 365 is rotated And moves to the ratchet wheel 361 side. At this time, since the upper end 366 of the lever ratchet 365 is positioned behind the first bevel 362-1 of the second ratchet wheel 361, the hair-collecting drum 330 is positioned at the rear of the second ratchet wheel 361 And rotates until the second bevel gear 362-2 is caught by the upper end 366 of the lever ratchet 365. [ In this embodiment, since the number of the inclined teeth 362 of the second ratchet wheel 361 is four, the hair-collecting drum 330 rotates by about 90 degrees.

When the suction nozzle assembly 310 moves in a first direction (arrow A), the first ratchet device 350 allows the hair-collecting drum 330 to rotate, while the second ratchet device 350 The second inclined portion 362-2 of the wheel 361 is caught by the upper end 366 of the lever ratchet 365 so that the hair-collecting drum 330 moves to the stopped state without rotating.

4, the plurality of protrusions 331 are inclined in the second direction on the surface of the hair-collecting drum 330. When the suction nozzle assembly 310 moves in the first direction, the hair-collecting drum 330 The pet hairs H between the fur of the carpet 303 move from the carpet 303 to the carpet 303 as shown in FIG. 13 because the plurality of protrusions 331 of the carpet 303 rub against the carpet surface 303 And is separated between the plurality of projections 331 of the hair-collecting drum 330.

Thereafter, when the suction nozzle assembly 310 is again moved in the second direction, the second ratchet device 360 moves the lever ratchet 365 to rotate the hair-collecting drum 330, 350 prevent the first ratchet wheel 351 from rotating so that the hair-collecting drum 330 does not rotate. Therefore, the hair-collecting drum 330 slides on the carpet 303 and moves. 14, the pet hairs H picked up by the plurality of protrusions 331 of the hair-collecting drum 330 are separated from the plurality of hair-collecting drums 330 by friction with the carpet 303 Separated from the protrusions 331 and left on the carpet 303. Then, the pet hairs (H) collected by the suction force are 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 restricting member 400 used in the suction nozzle assembly 310 for a vacuum cleaner according to an embodiment of the present invention.

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

The first ratchet device 410 includes a first rotating ratchet 411 mounted on the first end face of the hair-collecting drum 330 and a first rotating ratchet 411 formed to correspond to the first rotating ratchet 411, And a first fixed ratchet 418 that rotates only in one direction. The first fixing ratchet 418 is installed on the first supporting member 381 of the drum height adjusting member 370.

The first rotary ratchet 411 is provided so as to be axially slidable in the groove 412 formed in the first end face of the hair-collecting drum 330, And is resiliently supported by a spring 414. A plurality of guide grooves 413 are formed on the side surface of the first rotating ratchet 411 and a plurality of guide grooves 413 of the first rotating ratchet 411 are formed on the side surface of the groove 412 of the hair- A plurality of guide rails 415 are inserted. Accordingly, the first rotating ratchet 411 can slide in the axial direction of the hair-collecting drum 330, and when the first rotating ratchet 411 rotates, the hair-collecting drum 330 rotates together.

The first rotating ratchet 411 includes a rotating tooth surface having a plurality of ratchet teeth 416 formed in a circular shape on the surface facing the first fixed ratchet 418. Each ratchet 416 of the rotating tooth surface includes a sloped surface and a vertical surface that are inclined in one direction. The first fixed ratchet 418 includes a plurality of fixed ratchet teeth 419 corresponding to a plurality of ratchet teeth 416 of the first rotating ratchet 411. Thus, the first rotating ratchet 411 can rotate in the direction of the slope of the plurality of ratchet teeth 416, but can not rotate in the opposite direction. That is, when the first rotating ratchet 411 receives a force in the direction of the inclined surface of the ratchet 416, the first rotating ratchet 411 is rotated by the fixed ratchet 419 of the first fixed ratchet 418, The first rotating ratchet 411 can be rotated while being pushed into the groove 412 of the collection drum 330. However, when the first rotating ratchet 411 receives a force in a direction opposite to the direction of the inclined surface of the ratchet 416, the ratchet of the first rotating ratchet 411 is fixed to the fixing portion 416 of the first fixing ratchet 418 The ratchet teeth 419 are engaged with each other, so that the first rotating ratchet 411 can not rotate. In the case of the present embodiment, the first ratchet device 410 is configured such that when the suction nozzle assembly 310 (see FIG. 3) moves in the second direction, the first rotating ratchet 411 does not rotate, The first rotating ratchet 411 is formed to rotate.

The second ratchet device 420 includes a second rotating ratchet 421 mounted on a second end face of the hair collecting drum 330 and a second rotating ratchet 421 formed to correspond to the second rotating ratchet 421, And a second fixed ratchet (428) to rotate only in one direction. The second fixing ratchet 428 is installed on the second supporting member 391 of the drum height adjusting member 370.

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

Further, when the moving direction of the suction nozzle assembly 310 is changed because the number of the ratchet teeth 416 of the first rotating ratchet 411 is different from the number of the ratchet teeth 426 of the second rotating ratchet 421, The hair-drawing drum 330 is rotated at a predetermined 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 portions 386 and 396 provided on 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, the operation of the drum rotation restricting member 400 used in the suction nozzle assembly 310 according to the embodiment of the present invention as shown in FIG. 15 to control the rotation of the hair-collecting drum 330 will be described .

When the suction nozzle assembly 310 moves in the second direction, the hair-collecting drum 330 receives a force to rotate counterclockwise. Since the second rotary ratchet 421 of the second ratchet device 420 rotates in the direction of the inclined surface so that the fixed ratchet of the second fixed ratchet 428 is not caught by the ratchet 429, can do. However, since the ratchet 416 of the first rotating ratchet 411 is caught by the fixed ratchet 419 of the first retaining ratchet 418, the first ratchet device 410 does not rotate the hair collecting drum 330 Do not.

At the instant when the suction nozzle assembly 310 is moved, that is, when the suction nozzle assembly 310 is moved from the second direction to the first direction, the hair-collecting drum 330 receives a force to rotate clockwise. At this time, since the first rotating ratchet 411 of the first ratchet device 410 receives the force in the inclined direction, the fixed ratchet of the first fixed ratchet 418 is not caught by the ratchet 419. Thus, the first rotating ratchet 411 is rotatable. The vertical surface of the ratchet 426 of the second rotating ratchet 421 of the second ratchet device 420 is not latched to the vertical surface of the fixed ratchet 429 of the second stationary ratchet 428. Therefore, the second rotating ratchet 421 can rotate until the vertical surface of the ratchet 426 engages the vertical surface of the fixed ratchet 429 of the second fixed ratchet 428. Therefore, the hair-collecting drum 330 can rotate at a certain angle. When the ratchet 426 of the second rotating ratchet 421 is formed in four, the hair-collecting drum 330 can 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 Stopped. Therefore, the hair-collecting drum 330 also stops rotating. In this state, even if the suction nozzle assembly 310 is continuously moved in the first direction, the hair-collecting drum 330 does not rotate.

Hereinafter, a hair removing method using the suction nozzle assembly 310 according to an embodiment of the present invention will be described with reference to FIG. 16 attached hereto.

When the suction nozzle assembly 310 is moved in the first direction on the cleaning surface such as the carpet 303, the hair-collecting drum 330 of the suction nozzle assembly 310 moves in the first direction on the cleaning surface 303, The pet hair is separated from the carpet as the cleaning surface 303 (S10). The separated pet hairs are caught by the plurality of projections 331 of the hair-collecting drum 330.

When the user moves the suction nozzle assembly 310 in the opposite direction, the moving direction of the hair-collecting drum 330 of the suction nozzle assembly 310 is changed from the first direction to the second direction, 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-collecting drum 330 of the suction nozzle assembly 310 is also continuously moved in the second direction so that the plurality of projections 331 That is, collected pet hairs are separated and sucked into the dirt suction port 312 of the suction nozzle assembly 310. The pet hairs collected by the plurality of projections 331 of the hair collecting drum 330 are separated from the plurality of projections 331 by friction with the cleaning surface 303 and remain on the cleaning surface 303 .

While the suction nozzle assembly 310 is moving in the first direction or the second direction, the hair-collecting drum 330 does not rotate and remains stationary.

It is to be understood that the present invention is not limited to the specific embodiments described above and that various changes and modifications may be made without departing from the spirit and scope of the present invention as defined in the appended claims. Substitutions, additions, deletions, and alterations are within the scope of the claims of the present invention.

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;

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,

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

FIG. 5 is a plan view of a portion of a surface of a hair-collecting drum used in a suction nozzle assembly for a vacuum cleaner according to an embodiment of the present invention;

FIG. 6 is a side view of the hair collection unit of the suction nozzle assembly of FIG. 3,

FIG. 7 is a side view of the hair-collecting unit of the suction nozzle assembly of FIG. 3,

FIG. 8 is a sectional view showing a state in which the first ratchet device is prevented from rotating the hair-collecting drum,

Fig. 9 is a sectional view showing the state in which the drum-height regulating member is removed in Fig. 7, and the second ratchet device is configured to rotate the hair-

FIG. 10 is a sectional view showing a state in which the lever ratchet of the second ratchet device of FIG. 9 operates;

Fig. 11 is a sectional view showing a state in which the first ratchet device of Fig. 8 can rotate the hair-collecting drum, Fig.

Fig. 12 is a sectional view showing a state in which the hair-collecting drum is fixed so as not to be rotated by the lever ratchet of the second ratchet device of Fig. 10,

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

FIG. 14 is a conceptual view illustrating a state in which pet hairs collected by a hair collection member are separated when a suction nozzle assembly for a vacuum cleaner having a hair collection member according to an embodiment of the present invention is moved in a carpet in a second direction;

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

16 is a flowchart illustrating a hair removing method using a suction nozzle assembly according to an embodiment of the present invention.

Description of the Related Art [0002]

300; An upright type vacuum cleaner 301; The cleaner main body

310; Suction nozzle assembly 311; The nozzle body

312; Dirt inlet 313; Rotary brush

320; Hair collecting unit 330; A hair collecting member, a hair collecting drum

340,400; A drum rotation restricting member 350, 360; Ratchet device

351; Ratchet wheel 355; Ratchet Pole

365; Lever ratchet 369; Pivot

370; Drum height adjusting members 381, 391; Supporting member

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

386,396; Guide portions 411, 412; Rotating ratchet

412; A groove 414; spring

416, 426; The ratchet of the rotating ratchet is 418, 428; Fixed ratchet

419, 429; Fixing Ratchet Fixing Ratchet

Claims (20)

A nozzle body formed to be able to move on the surface to be cleaned, the nozzle body having a dust inlet; And And a hair collecting unit provided on the nozzle body, Wherein the hair collecting unit includes a hair collecting member and a drum rotation restricting member, The drum rotation restricting member is installed at both ends of the hair-collecting member, and the drum rotation restricting member provided at one end is formed so that the hair-collecting member rotates in the clockwise direction and does not rotate in the counterclockwise direction, The restricting member is formed such that the hair-collecting member is rotated in the counterclockwise direction and does not rotate in the clockwise direction, Wherein the hair collection member is in contact with the surface to be cleaned and does not rotate when the nozzle body moves, collects the pet hair on the surface to be cleaned when the nozzle body moves in one direction, Wherein a portion contacting the cleaning surface is rotated by a predetermined angle when the suction nozzle is changed. The method according to claim 1, Wherein the hair-collecting member is a cylindrical hair-collecting drum. delete 3. The method of claim 2, Wherein the hair-collecting drum rotates within an angle range of 10 to 180 degrees when the nozzle body changes its moving direction. ≪ Desc / Clms Page number 13 > 3. The method of claim 2, Wherein the drum rotation restricting member prevents the hair-collecting drum from rotating while the nozzle body moves, and when the moving direction of the nozzle body is changed, the hair-collecting drum rotates by a certain angle A suction nozzle assembly for a vacuum cleaner having a collection member. 6. The method of claim 5, The drum rotation restricting member A first ratchet device installed at one end of the hair-collecting drum and configured to rotate the hair-collecting drum only in one direction; And And a second ratchet device installed at the other end of the hair-collecting drum and configured to block rotation of the hair-collecting drum in a direction in which the hair-collecting drum can be rotated by the first ratchet device. Wherein said suction nozzle assembly comprises a suction nozzle assembly for a vacuum cleaner. The method according to claim 6, The first ratchet device includes: A first ratchet wheel installed at one end of the hair-collecting drum; And And a ratchet pawl that restricts a rotation direction of the first ratchet wheel when the first ratchet wheel is rotated. The method according to claim 6, Wherein the second ratchet device comprises: A second ratchet wheel installed at the other end of the hair-collecting drum; And And a lever ratchet installed to frictionally contact the cleaning surface and configured to limit the rotational direction of the second ratchet wheel. ≪ Desc / Clms Page number 19 > The method according to claim 6, The first and second ratchet devices A rotating ratchet installed on one end face of the hair-collecting drum; And And a stationary ratchet formed to correspond to the rotating ratchet, the stationary ratchet causing the rotating ratchet to rotate only in one direction. ≪ Desc / Clms Page number 19 > The method according to claim 1, Wherein the hair collection member includes a plurality of projections. ≪ Desc / Clms Page number 13 > 11. The method of claim 10, Wherein the plurality of projections are formed to be inclined in a rotating direction on a surface of the hair collection member. 3. The method of claim 2, And a drum height adjusting member for adjusting a height of the hair collection drum relative to the cleaning surface. 13. The method of claim 12, Wherein the drum height adjusting member comprises: First and second supporting members for supporting both ends of the hair-collecting drum and being elastically supported with respect to the nozzle body; And And a first guide portion and a second guide portion for guiding the first and second support members to move up and down with respect to the surface to be cleaned. The method according to claim 1, Wherein the hair collection member is installed on at least one of the front or rear of the dirt suction port in the nozzle body. The method according to claim 1, And the hair collection member is disposed inside the dirt suction port. 2. The suction nozzle assembly for a vacuum cleaner according to claim 1, The method according to claim 1, And a rotary brush is rotatably installed on the dirt suction port of the nozzle body. The suction nozzle assembly for a vacuum cleaner according to claim 1, A vacuum cleaner main body having a vacuum generator; And And a suction nozzle assembly according to any one of claims 1, 2, and 4 to 16, connected to the cleaner main body and sucking dirt from a surface to be cleaned. vacuum cleaner. Moving the hair-removing drum of the suction nozzle assembly in a first direction on the surface to be cleaned to separate and collect pet hair from the surface to be cleaned; Changing the moving direction of the hair-collecting drum from the first direction to the second direction and rotating the hair-removing drum by a predetermined angle to change a portion of the hair-collecting drum in contact with the surface to be cleaned; And And moving the hair-collecting drum in the second direction to suck the collected hairs into the dirt suction port of the suction nozzle assembly, Wherein the hair-removing drum is rotated in a reverse direction by a predetermined angle when the moving direction of the hair-removing drum is changed from the second direction to the first direction. 19. The method of claim 18, Wherein the step of sucking the collected pet hairs comprises: Further comprising the step of moving the hair-collecting drum in the second direction so that the pet hairs caught by the plurality of projections of the hair-collecting drum are separated from the plurality of projections and left on the surface to be cleaned, A hair removal method using an assembly. 19. The method of claim 18, Wherein the hair-removing drum does not rotate while the suction nozzle assembly is moving in the first direction or the second direction.

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