KR200370526Y1 - nozzle unite for vacuum cleaner - Google Patents

Abstract

According to the present invention, a vacuum cleaner nozzle unit includes a base member having a suction part, a cover member coupled to the base member to form a brush mounting part and a shock mounting part in communication with the brush mounting part, and installed on the shock mounting part to provide suction force. Vibrates the fan, which is rotatably installed on the base member, the brush bristles are provided on the outer circumferential surface in a predetermined pattern on the outer circumferential surface, power transmission means for transmitting the rotational force of the fan to the brush, and the brush installed on the base member. It includes a vibration generating means to.

Description

Nozzle unite for vacuum cleaner

The present invention relates to a vacuum cleaner, and more particularly, to a nozzle unit of a vacuum cleaner in which a brush is driven by suction force of air and the support structure is improved.

In general, the vacuum cleaner sucks and cleans the external dust or foreign matter by the strong suction force generated by the driving of the motor built into the main body. The vacuum cleaner can be divided into a canister type, which is easy to clean and move corners, and a brush or nozzle can be replaced, and an upright type that can be easily cleaned and stored in a large space. have.

In the canister type cleaner, replaceable nozzle units are brush-mounted type for cleaning carpets and the like, nozzles for narrow spaces for cleaning narrow spaces such as window frames, and floors for cleaning floors such as living rooms. It can be divided into a nozzle for a sofa for cleaning a nozzle, a cloth coated on a sofa or furniture, and the like.

Korean Patent Registration No. 199933 discloses an example of a nozzle for a vacuum cleaner having a brush. The disclosed nozzle has a structure in which a grill is formed on a side surface of the brush cover, and a fan is integrally formed with the brush on a side opposite to the grill cover to rotate the brush by suction force sucked through the grill.

Since the brush disperses the suction force for vacuum cleaning for the rotation of the brush, the suction force of foreign substances such as dust is relatively lowered.

Patent Publication No. 2004-0036182 discloses an example of a suction nozzle for a vacuum cleaner. The disclosed suction nozzle includes a main body having a suction port for sucking air containing foreign substances, a brush rotatably installed at the main body on the suction port side, and a motor for rotating the brush.

The suction nozzle configured as described above requires a means for supplying a separate power to the motor. In particular, since the suction nozzle has a structure that is coupled to and separated from the suction pipe, the structure for supplying power to the motor is relatively complicated.

The present invention is to solve the problems as described above, to drive the brush by using a wheel that is rotated by the suction force, to provide a nozzle unit for a vacuum cleaner that can simplify the power transmission structure and can be miniaturized have.

Another object of the present invention is to provide a vacuum cleaner nozzle unit capable of impacting a portion to be cleaned by vibrating the brush with respect to the base member on the suction port side.

Another object of the present invention is to provide a nozzle unit for a vacuum cleaner that can be miniaturized by simplifying the power transmission structure between the fan and the brush rotated by suction force and minimizing the occupied area of the fan.

1 is a partially cutaway perspective view of a nozzle unit according to the present invention,

Figure 2 is a perspective view showing another embodiment of the nozzle unit according to the present invention,

3 is a perspective view showing the power transmission means shown in FIG.

Figure 4 is a perspective view showing a power transmission means for transmitting the rotational force of the fan shown in Figure 2 to the brush,

5 is a perspective view showing a vibration generating means for vibrating a brush,

Figure 6 is a perspective view showing another embodiment of the dynamic generating means for vibrating the brush.

<Explanation of symbols for the main parts of the drawings>

10; Nozzle unit

12; Base member

20; Cover member

40; brush

52; Impeller

60; Power transmission

The vacuum cleaner nozzle unit of the present invention to achieve the above object,

A base member having a suction portion, a cover member coupled to the base member to form a brush mounting portion and a shock mounting portion in communication with the brush mounting portion, a fan installed on the shock mounting portion to rotate by suction force, and a rotation on the base member. It is possible to include a brush installed on the outer circumferential surface in a predetermined pattern, a power transmission means for transmitting the rotational force of the shock to the brush, and vibration generating means for vibrating the brush installed in the base member It is done.

In the present invention, the fan is composed of an impeller with a rotating shaft installed vertically, the power transmission means is a drive gear installed on the rotating shaft of the impeller, the reduction gear for reducing the rotational speed by meshing with the drive gear and the deceleration It includes a drive pulley installed on the rotating shaft of the gear, and a belt caught by the driven pulley installed on the brush.

The vibration generating means includes an eccentric bearing installed on the rotating shaft of the brush, a boss portion supporting the eccentric bearing, vibration pieces extending in an oblique direction from the boss portion, and supporting the end portions of the vibration pieces and the base. And a pillow block having a housing supported on the member.

In the present invention, the vibration generating means is a pulley installed to be eccentric with respect to its central axis of rotation, a boss for supporting a bearing installed on the brush axis of rotation, a plurality of extending in an oblique direction from the boss portion A pillow block having a vibrating piece, a housing supporting an end of the vibrating pieces and being supported by the base member, and a tension pulley for contacting a belt for transmitting the rotational force of the shock to the pulley to adjust its tension; do.

Hereinafter, a preferred embodiment of the vacuum cleaner nozzle unit according to the present invention with reference to the accompanying drawings in detail as follows.

The nozzle unit for the vacuum cleaner according to the present invention rotates the fan using the vacuum suction input of the vacuum cleaner, and uses the rotational force of the fan to clean the carpet, sofa cloth, bed, etc. by rotating and vibrating the brush on the suction side. One example is shown in Figures 1 and 2 as being.

Referring to the drawings, the vacuum cleaner nozzle unit 10 has a base member 12 having a suction part 11 formed in a length direction on a lower surface thereof, and the base member 12 coupled to the brush mounting part 13 and connected thereto. 커버 a cover member 20 which forms the mounting portion 14, and a suction pipe member 30 which is rotatably installed on at least one of the base member 12 or the cover member 20 and communicates with the mounting portion 14; , The brush 40 provided on the base member 11 so that the brush bristle 41 protrudes from the lower surface of the base member, the jaw 50 rotatably installed on the jaw mounting portion 14, and the jaw ( Power transmission means 60 for transmitting the rotational force of the 50 to the brush 40 and vibration generating means for vibrating the brush 40 by using the rotational force of the brush 40 is installed in the base member 12 And 70.

The nozzle unit 10 for a vacuum cleaner configured as described above will be described in more detail for each component as follows.

The suction part 11 formed in the base member 12 is formed in the longitudinal direction of the base member 12 so that the inside of the edge is inclined so that the suction of foreign matter and air can be made smoothly. In addition, a plurality of rollers (not shown) may be installed on the bottom surface of the base member 12 to facilitate the movement of the base member 12.

The cover member 20 coupled to the base member 12 is connected to the suction port 11 and forms a predetermined space so as to form the brush mounting portion 13 and the shock mount portion 14 on which the brush 40 is mounted. do. And the cover member 20 and the base member 12 may be formed with ribs 21 for partitioning the space in which the gears of the power transmission means will be described later.

In addition, an impeller 52 having a rotating shaft 51 vertically installed as shown in FIG. 1 may be installed at the shock mount 14 formed by combining the base member 12 and the cover member 20. The rotating shaft 51 of the impeller 52 may be supported by a bearing 52 installed on the cover member or the bay member 12 or on a bracket (not shown) fixed thereto. In this case, it is preferable to increase the weight of the impeller 52 by installing a separate flywheel 53 or making the impeller 52 made of a material having a specific gravity in order to increase the inertia force that is rotated.

On the other hand, the jaw 50 mounted on the jaw mounting portion 14 may be made of a sirocco jap (56) in which the rotating shaft 55 is rotatably installed in the horizontal direction as shown in FIG.

The power transmission means 60 is to transmit the rotational force of the shock to the brush 40, Figure 1 and 3 is carried out to transmit the rotational force of the rotating shaft 51 of the impeller 52 to the brush 40. An example is shown.

Referring to the drawings, the power transmission means 60 is a drive gear 61 is installed at the end of the rotary shaft 51, the reduction gear 62 is engaged with the drive gear 61 to reduce the rotational force of the drive gear (62). And a driving pulley 63 installed on the rotation shaft of the reduction gear 62, a driven pulley 64 provided on the brush 40 corresponding to the driving pulley 63, and the driving pulley 63; A timing belt 65 is applied to the driven pulley 64. Here, the timing belt is hooked to the driving pulley 63 and the driven pulley 64 to transmit power between the rotating shaft 51 and the brush 40 whose rotational central axis forms 90 degrees. Here, the timing belt 65 preferably has elastic force to absorb the play between the rotating shaft and the brush caused by the vibration of the brush 40.

2 and 4 show the power transmission means for transmitting the rotational force of the rotating shaft 55 of the sirocco fan 56 installed in the horizontal direction to the brush (40).

Referring to the drawings, the power transmission means is installed in the drive shaft pulley 66 and the drive pulley 66 and the brush 40 installed on the rotary shaft of the sirocco fan 56 installed in parallel with the brush 40 in the rotary shaft mounting portion 14 The driven pulley 67, and the timing belt 68 is applied to the drive pulley 66 and the driven pulley 67. Here, the timing belt 68 preferably has elastic force as described above, but the tension of the timing belt 68 to absorb the play between the rotation axis and the brush in accordance with the vibration of the brush 40 to be described later It may further include a spring pulled tension pulley 69 to elastically bias toward the timing belt to adjust the pressure.

The vibration generating means 70 is for vibrating the brush 40, the eccentric bearing 71 is installed on the rotating shaft 42 of the brush 40, as shown in Figs. The boss portion 72 supporting the eccentric bearing 71, the vibration pieces 73 and 74 extending in the oblique direction from the boss portion 72, and the end portions of the vibration pieces 73 and 74 are disposed. And a pillow block 76 having a housing 75 fixed to the base member 12 to support and suspend the boss portion 72. The pillow block 76 with respect to the base member 12 is coupled to the guide rail 77 is formed on the edge of the base member 12.

2 and 6 show another embodiment of the vibration generating means (80).

Referring to the drawings, the vibration generating means 80 is an eccentric pulley 67 is installed on the brush 40 so as to be eccentric with respect to its central axis of rotation, and a bearing 82 installed on the brush 40 rotating shaft 42. The base portion supporting the boss portion 83, the plurality of vibrating pieces 84, 85 extending in the oblique direction from the boss portion 83, and the end portions of the vibrating pieces 84, 85 and the base A pillow block 87 having a housing 86 supported by the member 12 and a tension pulley 88 for adjusting the tension of the timing belt 68 for transmitting the rotational force of the shock to the pulley.

The vibration generating means is not limited to the above-described embodiment and may be any structure as long as it can vibrate the brush. In particular, the pillow block or boss portion for supporting the brush may be installed in the front and rear, up and down direction and supported by the base member.

Referring to the operation of the vacuum cleaner nozzle unit according to the present invention configured as described above are as follows.

To clean carpets, sofas, beds, etc. using the nozzle unit 10 according to the present invention, first, a suction tube (not shown) suction tube member 30 of a vacuum cleaner is coupled. When the vacuum cleaner is operated in this state, the impeller or sirocco shock, which is the shock 50, is rotated by the air sucked at high speed through the suction part 11 and the suction passage. Accordingly, the rotational force of the fan 50 is transmitted to the brush 40 by the power transmission means, and as the brush 40 rotates, the brush 40 vibrates by the vibration generating means.

The power transmission and vibration generation process of the brush 40 as described above in more detail as follows.

As shown in FIGS. 1 and 3, when the shock 50 is formed of an impeller 52, the reduction gear rotates by a drive gear 61 installed on the rotation shaft 51 of the impeller 52 as the impeller 52 rotates. The driven pulley 64, which is hooked by the drive pulley 63, the timing belt 65, installed on the rotation shaft of the reduction gear 62, rotates, and the brush 40 is decelerated and rotated. As the brush 40 rotates, vibration is generated in the brush 40 by the eccentric bearing 71 on which the rotating shaft of the brush 40 is supported, and the eccentric bearing 71 supports a boss portion ( Since the 72 is supported by the vibration pieces 73 and 74, it is possible to prevent the vibration of the brush 40 from being suppressed.

2 and 4, when the fan is made of the sirocco fan 56, the rotation of the driven pulley 67 connected by the drive pulley 66 and the timing belt 68 installed on the rotation shaft 55 thereof. The brush 40 rotates. In this process, the driven pulley 67 is mounted in an eccentric state with respect to the rotation axis of the brush 40, and the bearing 82 supporting the rotation axis of the brush 40 is a vibration piece 84 of the pillow block 87. Brush (40) is easily vibrated because it is installed in the boss portion 83 of the support (85). In this process, the tension control of the timing belt 68 according to the eccentric rotation of the driven pulley 81 is controlled by the tension pulley 69 in contact with the timing belt 68.

As described above, the movement of the brush 40 to be rotated rotates while hitting the carpet to be cleaned, thereby increasing the cleaning efficiency. In particular, since the impeller uses a shock and its rotational force is transmitted to the brush 40 by the reduction gear 62, the drive pulley 63, and the timing belt 65 which are armrested to the driven pulley 64, The structure is relatively simple. In addition, the installation space of the impeller and the space for power transmission can be minimized, thereby miniaturizing the nozzle unit.

As described above, the nozzle unit for the vacuum cleaner may vibrate the brush, so that the brush bristles due to the vibration hit the carpet to be cleaned, thereby increasing the cleaning efficiency. And since the structure of the fan and the power transmission structure are relatively simple, the nozzle unit can be miniaturized. In addition, the impeller's rotational force is achieved by a single acceleration gear and a timing belt with armrests, thus increasing the freedom in designing the nozzle unit.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible.

Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (6)

A base member formed with a suction portion; A cover member coupled to the base member to form a brush mounting portion and a shock mounting portion in communication with the brush mounting portion; A fan installed on the shock mount unit and rotating by suction force, the brush rotatably installed on the base member, and the brush bristles being installed in a predetermined pattern on an outer circumferential surface thereof; Power transmission means for transmitting the rotational force of the shock to the brush; And a vibration generating means for vibrating the brush installed in the base member. The method of claim 1, The fan is made of an impeller with a rotating shaft installed vertically, The power transmission means includes a drive gear installed on the rotating shaft of the impeller, a reduction gear that is engaged with the driving gear to reduce the rotation speed, a drive pulley installed on the rotating shaft of the reduction gear, and a driven pulley installed on the brush. Nozzle unit for a cleaner, characterized in that it comprises a hanging belt. The method of claim 2, And a center of rotation of the drive pulley and a center of rotation of the driven pulley, wherein the drive pulley and the driven pulley are armrested by a belt. The method of claim 2, The impeller cleaner unit, characterized in that the flywheel is further provided. The method of claim 1, The vibration generating means includes an eccentric bearing installed on the rotating shaft of the brush, a boss for supporting the eccentric bearing, vibration pieces extending in an oblique direction from the boss, and an end of the vibration piece to support the base member. Nozzle unit for a cleaner, characterized in that it comprises a pillow block having a housing supported on. The method of claim 1, The vibration generating means is installed so as to be eccentric with respect to the central axis of rotation of the brush and a pulley connected by a drive pulley and a belt rotated by 휀, Pillow block having a boss for supporting a bearing installed on the brush rotating shaft, a plurality of vibration pieces extending in an oblique direction from the boss, and a housing supporting the end of the vibration pieces and supported by the base member And a tension pulley which is in contact with the belt and adjusts its tension.