KR19990048524A - Auxiliary Brush for Vacuum Cleaner - Google Patents

Abstract

The present invention relates to an auxiliary brush used in a vacuum cleaner, and more particularly, to an auxiliary vacuum cleaner improved to be able to freely stretch the tip length of a knife-type brush so as to easily clean a cleaning surface such as a narrow space and a long gap. It's about brushes.

The present invention, in the auxiliary brush of the vacuum cleaner mounted on the tip of the extension tube 207 to perform various cleaning operations, the constant side having a constant pitch thread 12 on one side of the guide brush portion 10a having a rectangular cross section A first brush 10 having a length of the guide groove 11 and having a perforated opening 19 at the front end of the guide brush 10a and having a rear end assembled to the extension pipe 207, and the guide brush. The outer surface is in contact with the inner surface of the portion (10a), the suction port 29 is provided at the tip, and the fixing hole 21 is formed on one side of the knife-shaped brush portion 20a having a square cross-section, the fixing hole 21 ) Is provided with a button member 22 formed on a surface corresponding to the threaded portion 12 by engaging the threaded portion 12 to generate a clamping force step by step between the opening 12 of the first brush (10) The auxiliary brush of the vacuum cleaner including the second brush 20 drawn out from (19) The ball.

Description

Auxiliary Brush for Vacuum Cleaner

The present invention relates to an auxiliary brush used in a vacuum cleaner, and more particularly, to an auxiliary vacuum cleaner improved to be able to freely stretch the tip length of a knife-type brush so as to easily clean a cleaning surface such as a narrow space and a long gap. It's about brushes.

In general, the vacuum cleaner is configured to have a function of collecting dust or other foreign matter on the floor cleaning surface as a powerful suction force generated by the motor drive, the vacuum cleaner 201 is shown in the inner partition, as shown in FIG. A main body 203 having a dust collecting chamber and a driving chamber (not shown) partitioned by the rear wheel 202, which can be moved by the rear wheel 202, and a suction brush 204 capable of sucking dust on a cleaning surface at one end thereof; Is detachably attached and the other end is equipped with a hose handle 115 having a suction force control switch unit 205 is connected to the multi-stage connection pipe 207 and connected to the extension pipe 207 to form an air passage At the same time, it is equipped with a flexible hose (209) mounted flexible hose (209) connected to the hose adapter (208) at the end so that the detachable to the dust chamber in the main body (203).

The vacuum cleaner 201 as described above can be used by inserting one end of the extension pipe 207 to remove foreign substances such as sand stuck in a window frame or a corner of a house or an interior floor of a car. ), (210b) bar, the auxiliary brush (210a, 210b) has a knife-shaped auxiliary brush (210a) useful for cleaning narrow spaces, etc., hair-shaped auxiliary brush (210b) to clean the dust off the cleaning surface And an auxiliary brush (not shown) for carpet used for cleaning a soft cloth.

The auxiliary brushes 210a and 210b may be stored in the auxiliary brush accommodating portion 211 provided in the main body 203 or an auxiliary brush accommodating container (not shown) provided separately, or the extension pipe 207 and the main body (not shown). The auxiliary brushes 210a and 210b were stored on extension tube fixing holders (not shown) connecting 203 to each other.

However, since the knife auxiliary brush 210a of the related art has a single tip length as shown in the drawing, the knife auxiliary brush 210a is narrower than the tip length having the elongated shape of the knife auxiliary brush 210a in a cleaning work place such as a long gap. When performing the cleaning operation, the tip of the knife-type auxiliary brush (120a) does not reach the cleaning area to be cleaned, there was a problem in reducing the cleaning function of the vacuum cleaner 201.

Therefore, the present invention has been made in order to solve the above problems, the purpose is to increase the length of the tip of the knife-shaped brush by a simple operation, it is possible to change the length can be reduced to narrow spaces and corners clean place To provide an auxiliary brush for a vacuum cleaner that can be cleaned easily.

1 is a perspective view of a general vacuum cleaner,

Figure 2 is an exploded perspective view showing an auxiliary brush of the vacuum cleaner according to the present invention,

Figure 3 is an operating state showing the auxiliary brush of the vacuum cleaner according to the present invention.

<Detailed Description of Major Parts of Drawing>

1 ..... Secondary Brush 10 .... First Brush

10a ... guide brush section 11 .... guide groove

12 .... Thread 19 .... Opening

20 .... 2nd Brush 20a .... Knife Brush

21 .... fixing hole 22 .... button member

23 .... Clamp 201 ... vacuum cleaner

203 ... Main body 207 ... Extension tube

The present invention for achieving the above object, in the auxiliary brush of the vacuum cleaner mounted on the tip of the extension tube to perform a variety of cleaning work, one side of the guide brush having a rectangular cross-section has a certain length of thread A guide groove of the guide brush portion, the front end of which has a penetrating opening, and a rear end thereof is assembled to the extension tube, and an outer surface is in contact with the inner surface of the guide brush portion, and a suction port is provided at the tip, and a square cross section An opening of the first brush is provided with a button member having a fixing hole formed on one side of the knife-shaped brush part having a fastening part, and having a catching part formed on a surface corresponding to the screw thread to be caught in steps between the threads to generate a fixing force. By providing the auxiliary brush of the vacuum cleaner, characterized in that it comprises a second brush withdrawn from .

Hereinafter, the auxiliary brush of the vacuum cleaner according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is an exploded perspective view showing an auxiliary brush of the vacuum cleaner according to the present invention, Figure 3 is an operating state diagram showing the auxiliary brush of the vacuum cleaner according to the present invention.

As shown in FIGS. 2 and 3, the auxiliary brush 1 of the vacuum cleaner according to the present invention is expanded and moved to the front and rear by a simple operation of a knife-shaped brush section of a narrow and long square section so as to be suitable for a narrow space or a corner cleaning place. It can be done.

That is, the first brush 10, which is assembled to be detachably attached to the front end of the extension pipe 207, such as the suction brush 204, forms an opening at the front end and integrates the guide brush part 20a of a predetermined length having a rectangular cross section. In one side of the guide brush (10a) is provided with a guide groove 11 of a predetermined length formed on the upper inner circumferential surface or lower inner circumferential surface of the guide brush (10a), the tip of the guide brush (10a) will be described later The opening 19 is formed to allow the second brush 20 to be pulled out and pulled out.

In addition, the second brush 20 that is assembled to be capable of moving forward or backward in the first brush 10 includes a knife-shaped brush part 20a having a rectangular cross section integrally, and the knife-type brush part 20a has a suction force. The outer surface is always in contact with the inner surface of the guide brush portion 10a to prevent the leakage of suction force through the gap when it occurs, the front and back, and the front end is provided with a suction port 29 to force the suction of dust and foreign matter.

And, on one side of the knife-shaped brush portion (20a) to form a fixing hole (21) to which the button member 22 is mounted so as to fix the position of the second brush 20 is adjusted to the front, the button member 22 is formed by a convex locking portion 23 on the surface corresponding to the screw thread 12 to move forward and backward along the guide groove 11, so that the locking portion 23 during the slide movement The tip length of the knife-shaped brush part 20a drawn out through the opening 19 of the first brush 10 while being fixed to the threaded thread 12 can be appropriately adjusted step by step according to the cleaning conditions. At this time, the thread 12 is preferably provided with a round head screw so that the stepwise locking of the locking portion 23 according to the sliding movement of the button member 22 is made smoothly.

When the auxiliary brush 1 having the structure as described above is mounted on the tip of the extension pipe 207 to perform the cleaning operation, as shown in FIG. 3, the first assembled on the tip of the extension pipe 207 is shown. When the button member 22 is positioned at the rear end of the guide groove 11 of the brush 10, the tip portion of the knife-shaped brush portion 20a of the second brush 20 is opened through the opening 19 of the first brush 10. As was drawn to a short length, the gap length was short and the gap depth was used on the cleaning surface.

On the other hand, when the sweeping surface to be cleaned has a long gap and is deep, and the tip length requires the second brush 20, the knife-shaped brush portion 20a of the second auxiliary brush 20 is moved forward. To be further withdrawn to the bar, when the user grabs the button member 22 located at the rear end of the guide groove 11 and pushes forward to the front end side, the engaging portion 23 of the button member 22 is a plurality of Since the fixing force is generated step by step between the adjacent threads 12 while riding over the threads 12, the user stops the forward movement of the button member 22 which was forced to move forward, thereby opening the opening of the first brush 10. A fixed length of the knife-shaped brush portion 20a drawn out a predetermined length through the front (19), as well as a simple operation of the button member can be appropriately adjusted to the tip length of the second brush 20 according to the cleaning conditions will be.

Accordingly, the suction port 29 of the second brush 20 drawn out to the desired length is narrow, close to the corner cleaning surface, and the dust and foreign substances on the cleaning surface are cleanly cleaned as a powerful suction force generated by driving of the motor. It can be cleaned.

Therefore, according to the present invention, a first brush 10 having a guide groove 11 having a plurality of threads 12 formed thereon, and a button member caught between the threads 2 while being moved along the guide groove 11. By assembling and constructing the second brush 20 equipped with (22) internally and externally, the knife type brush portion 20a of the second brush 20 from the first brush 10 by simple operation of the button member 22. ) Can be freely extended by the user's desired length, so that it is possible to clean the corners of large depths or long clearances that have been difficult to clean because of a single length as in the prior art. The effect of improving the cleaning function and efficiency is obtained.

Claims (2)

In the auxiliary brush of the vacuum cleaner mounted on the tip of the extension pipe 207 to perform various cleaning operations, a guide having a certain length of thread having a constant pitch thread 12 on one side of the guide brush portion 10a having a rectangular cross section. A first brush 10 having a groove 11 and having a perforated opening 19 at the front end of the guide brush part 10a and having a rear end assembled to the extension pipe 207, and the guide brush part 10a. The outer surface is in contact with the inner surface of the), provided with a suction port 29 at the tip, and forms a fixing hole 21 on one side of the knife-shaped brush portion (20a) having a square cross-section, the fixing hole 21 is The opening 19 of the first brush 10 is provided with a button member 22 formed on a surface corresponding to the screw thread 12 by a latching part 23 which is caught in steps between the thread threads 12 and generates a fixing force. Auxiliary brush of the vacuum cleaner, characterized in that it comprises a second brush (20) withdrawn from the . The vacuum cleaner as claimed in claim 1, wherein the screw thread (12) is provided with a round head screw shape so that the stepwise locking of the locking portion (23) according to the sliding movement of the button member (22) is made smooth. Auxiliary brush.