KR20030031651A - Apparatus for rotating brush of vacuum cleaner - Google Patents

Abstract

PURPOSE: A device for rotating a brush of a vacuum cleaner is provided to improve the convenience of cleaning by properly rotating the brush horizontally and vertically. CONSTITUTION: A brush head(11) has a suction port in the bottom, and a coupling groove at the center of the rear end. A brush neck(13) has an open part at the top of the rear end, and a fitting groove(18) at the bottom of the open part. Both sides of the front end of the brush neck are coupled to the coupling groove of the brush head(11). The front end of a brush pipe(19) is supported by the open part, and the rear end of the brush pipe(19) is coupled to an extension pipe. An elastic stopper(25) is fixed on the brush pipe(19), and has a protrusion(26) fit into the fitting groove.

Description

Brush rotating device for vacuum cleaner {APPARATUS FOR ROTATING BRUSH OF VACUUM CLEANER}

The present invention relates to a vacuum cleaner (Vacuum Cleaner), and more particularly, a vacuum cleaner that is mounted on the end of the extension pipe is configured to rotate the horizontal (vertical) and vertically appropriately brush to increase the convenience of cleaning work It relates to a brush rotating device.

In general, the vacuum cleaner sucks external dust or foreign substances by the powerful suction force generated by the driving of the motor built into the main body, and the sucked dust or foreign substances are collected in the dust collecting bag mounted in the dust collecting chamber, and the clean air is driven. It is discharged to the outside through the seal.

1 shows a general canister type vacuum cleaner. It includes a dust collecting chamber and a driving chamber partitioned by a partition wall, and includes a main body 1 moved by wheels 2, a suction force control switch 4, and a main body through a flexible hose 5. The handle 3 and the upper end connected to 1) are combined with the handle 3 and consist of an extension tube 6 detachably mounted at a lower end of the brush 7 for sucking dust.

During the cleaning operation, the vacuum cleaner can easily perform the cleaning operation by sucking the dust and foreign substances present on the floor with the suction power of the motor while moving the brush 7 in contact with the floor. Therefore, the brush 7 has a structure that is freely rotated horizontally and vertically with a joint structure so that it can be bent properly with respect to the extension pipe 6 for the convenience of cleaning operation.

However, the brush rotating apparatus of the conventional vacuum cleaner does not include a means for fixing the brush 7 in the horizontal rotation mechanism to be in the correct position, that is, the brush 7 is perpendicular to the extension pipe 6. In addition, the direction of the brush 7 is easily turned, there is a problem that can not be performed smoothly rather than cleaning.

The present invention has been made to solve the various problems of the prior art as described above, an object of the present invention is to ensure that the brush is orthogonal to the extension tube when the brush can be properly bent horizontally and vertically with respect to the extension tube while going straight. It is to provide a brush rotating device of a vacuum cleaner that is fixed in position and horizontal rotation is suppressed and can be easily cleaned by rotating left and right only when necessary.

A feature of the present invention for achieving the above object includes a cleaner body having a motor and a dust collecting bag, an extension tube connected to the body via a flexible hose, and a brush attached to the tip of the extension tube to suck in dust and the like. A vacuum cleaner comprising: a brush head having a suction port at a bottom thereof and a coupling groove at a rear end thereof; A brush neck having both ends of the front end pivotally coupled to the coupling groove of the brush head, the brush neck having an opening on the rear end, and a locking groove at the bottom of the opening; A brush pipe superposed on the opening of the brush neck and supported in a relative rotation, and a rear end coupled to the extension pipe; Both ends are fixed to the brush pipe, and the brush rotating device of the vacuum cleaner having an elastic stopper having a locking projection fitted in the middle of the locking groove of the brush neck in the middle.

Accordingly, the present invention, when the front and the reverse when the locking projection of the elastic stopper installed in the brush pipe is inserted into the locking groove of the brush neck, the brush head is fixed to the orthogonal position with respect to the extension pipe can be easily carried out cleaning Of course, if the brush head is rotated to the left or right, the stopper of the elastic stopper is elastically deformed, and the brush head can be horizontally rotated so that the brush head can be rotated horizontally. do.

1 is a side view showing an example of a general vacuum cleaner;

Figure 2 is a perspective view showing the configuration of a brush rotating device according to the present invention,

3 is a cross-sectional view taken along line II of FIG. 2;

Figure 4 is a side view showing the configuration of a brush rotating device according to the present invention,

5 is a plan view showing the configuration of the brush rotating apparatus according to the present invention,

6 is a perspective view separately showing the configuration of the brush rotating apparatus according to the present invention;

7 is a perspective view partially showing the state in which the joint of the brush is bent horizontally according to the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

1: cleaner body 6: extension tube

10: brush 11: brush head

13: brush neck 14: pivot

15: opening 18: locking groove

19: brush pipe 20: rotating part

23a: fixing hole 25: elastic stopper

26: protrusion

Hereinafter, a preferred embodiment of the brush rotating device of the vacuum cleaner according to the present invention will be described in detail with reference to the accompanying drawings.

First, referring to FIGS. 2 to 5, the brush 10 of the vacuum cleaner according to the present invention includes a rectangular brush head 11 in contact with a floor to suck in dust or foreign matter, and the brush head 11. A brush pipe 19 which is rotatably coupled to the brush neck 13 and the brush neck 13 which are rotatably coupled vertically and detachably connected to the extension tube 6 of the vacuum cleaner shown in FIG. 1. It consists of. In addition to the extension pipe 6 of the vacuum cleaner, the brush pipe 19 of the brush 10 may be directly coupled to the suction port formed in the main body of the vacuum cleaner. As such, the vacuum cleaner which directly combines the main body and the brush 10 is called an upright type. Upright type vacuum cleaners are well known, and thus detailed descriptions of the construction and operation are omitted.

In addition, as shown in FIG. 4, a suction port (not shown) is formed at the bottom of the brush head 11 so that dust and the like may be introduced therein, and in the middle of the rear end thereof for assembling the brush neck 13. Coupling groove 12 is formed. The engaging groove 12 extends properly to the upper surface of the brush head 11 so as to rotate vertically of the brush neck 13 and communicates with the suction port thereof.

2 and 7, the brush neck 13 is formed in a tubular shape having a front opening to communicate with the suction port of the brush head 11, and the rear end thereof has a main surface for horizontal rotation of the brush pipe 19. It is formed in a circular arc shape. On both sides of the front end of the brush neck 13, a pivot 14 for rotatably assembling with the brush head 11 is protruded, and an upper surface of the front end of the brush neck 13 has an arc shape for guiding rotation about the brush head 11. The curved portion 13a is formed. In addition, a circular opening 15 is formed on the upper surface of the rear end of the brush neck 13 to communicate with the brush pipe 19. At the bottom of the brush neck 13 corresponding to the opening 15, a boss 16 for screwing with the brush pipe 19 is projected to be supported by the plurality of ribs 17. On the other hand, the rear ribs 17 in the front-rear direction are formed with locking grooves 18 into which the locking projections 26 of the elastic stopper 25 described later are fitted, and the locking grooves 18 are easily provided with the elastic stoppers 25. It is preferable to form a substantially V-shape as shown in detail in FIG. 3 for one release.

The brush pipe 19 is composed of a rotating part 20 rotatably assembled with the brush neck 13 and a pipe-like connection part 24 for detachably connecting to the extension tube 6 of the vacuum cleaner. The rotating part 20 has a main surface of the front end portion formed in a semi-circular shape and is superimposed on the opening 15 of the brush neck 13, and the screw 29 from the brush neck 13 side to the boss 21 protruding from the center of the lower surface thereof. By assembling the brush neck 13 is assembled so as to be relatively rotatable in the horizontal direction. On the other hand, the support 23 is formed to protrude around the boss 21, and the two fixing holes 23a, which are supported at both ends of the elastic stopper 25 by being fitted to the lower end of the support 23, are formed to face each other. .

3, 6 and 7, the elastic stopper 25 is preferably composed of a strip-shaped leaf spring, in the middle of the locking stones that are elastically fitted in the locking groove 18 of the brush neck (13). The group 26 is bent into a substantially V-shape. And both ends thereof are formed by bending fixing pieces 27 respectively fitted into and fixed to the fixing holes 23a of the brush pipe 19. The cover 28 covers the upper part of the brush pipe 19 to fasten the screw 22 to shield the inside thereof.

In the brush rotating device of the vacuum cleaner according to the present invention configured as described above, the brush 10 is freely rotated in the vertical direction with respect to the extension pipe 6 for the convenience of the cleaning operation, as shown in FIG. As long as a constant external force is not applied, the state is maintained at a position orthogonal to the extension pipe 6.

That is, normally, the locking projection 26 of the elastic stopper 25 installed in the brush pipe 19 is elastically fitted in the locking groove 18 of the brush neck 13, so that the brush head 11 is extended to the tube 6. The position is fixed in the orthogonal state with respect to). Accordingly, when the cleaning operation is performed, such as when the brush 10 is moved forward or backward, the brush head 11 can be stably and easily cleaned without being twisted as in the related art.

On the other hand, as shown in FIG. 4, when the brush head 11 is rotated to the left or right by applying a constant force, the elastic stopper 25 elastically deforms while the locking protrusion 26 is caught by the brush neck 13. The fixation of the brush head 11 is released by coming out of the groove 18. Therefore, if necessary, the brush head 11 may be easily rotated in the left and right directions, thereby ensuring the convenience of the cleaning operation as it is. At this time, the rotation of the brush head 11 is sufficiently rotated by turning the extension tube 6 to the left or right while pressing the brush 10 appropriately on the floor without the need for the operator to directly hold and rotate the brush head 11. You can.

The embodiments described above are merely to describe preferred embodiments of the present invention, the scope of the present invention is not limited to the described embodiments, those skilled in the art within the spirit and claims of the present invention It will be understood that various changes, modifications, or substitutions may be made thereto, and such embodiments are to be understood as being within the scope of the present invention.

As described above, according to the brush rotating device of the vacuum cleaner according to the present invention, the brush is configured to be freely rotated in the horizontal and vertical directions with respect to the extension tube to facilitate the cleaning operation while the brush is perpendicular to the extension tube when going straight. The position can be fixed so as to prevent unnecessary horizontal rotation. Accordingly, the phenomenon that the brush is easily twisted when going straight as in the prior art does not occur at all, and thus the cleaning operation can be performed more easily and reliably. Therefore, the present invention has a very excellent effect of greatly improving the quality and reliability of the vacuum cleaner, ease of use, and the like.

Claims (1)

In the vacuum cleaner comprising a cleaner main body having a motor and a dust collecting bag, an extension tube connected to the main body via a flexible hose, and a brush attached to the tip of the extension tube to suck in dust and the like, A brush head having a suction port at a bottom thereof and having a coupling groove in the middle of a rear end thereof; A brush neck having both ends of the front end pivotally coupled to the coupling groove of the brush head, the brush neck having an opening at an upper surface of the rear end, and a locking groove at the bottom of the opening; A brush pipe superposed on the opening of the brush neck so as to be relatively rotatable, and a rear end coupled to the extension pipe; Both ends are fixed to the brush pipe, and the brush rotary device of the vacuum cleaner, characterized in that it comprises an elastic stopper having an engaging projection elastically fitted in the locking groove of the brush neck in the middle.