KR200151211Y1 - Clutch device for brush drum of sweeper - Google Patents

Abstract

The present invention relates to a cleaner brush drum control mechanism, which is an upright cleaner that transmits power of a shaft to a brush drum by a belt transmission method in a brush barrel: mounted inside a brush barrel to rotate about a hinge, and the shaft A selection lever for pulling the belt backward so that the belt does not contact the belt; And it is characterized in that it comprises a brush barrel is formed a slide groove for moving and stopping the knob for the rotation operation of the selection lever.

Accordingly, in the upright type cleaner having the rotating brush, the driving of the rotating brush is temporarily blocked to improve the operation convenience of a mechanism for preventing damage to the cleaning object.

Description

Cleaner Brush Drum Enforcement Mechanism

The present invention relates to a cleaner brush drum enforcement mechanism, and more particularly, to a cleaner brush drum enforcement mechanism that temporarily blocks driving of a rotation brush in an upright type cleaner having a rotation brush to prevent damage to a cleaning object. .

1 is a perspective view showing the main part of the general upright cleaner by cutting away. Although not shown in the figure, it is common to install a rotating brush in addition to the fixed brush in the brush barrel 12 to improve the cleaning ability of the upright type cleaner. The rotary brush refers to a method of rotating the brush drum 13 in which the brush is spirally disposed on the outer circumferential surface, and is connected to the belt 16 from the power motor 14 to receive power. When the brush drum 13 rotates at about 5,000 rpm by the shaft 15 rotating at about 30,000 rpm, foreign substances on the bottom are lifted, so that the suction of the foreign substances is smooth and the cleaning ability can be improved.

However, the brush drum 13 is effective for cleaning the carpet, but when used in a sheet having a smooth surface it should be noted that the sheet is badly damaged because it is adsorbed by the inlet of the brush barrel 12 and rubbed with the brush. In order to prevent this, a dummy shaft 17 as shown in FIG. 2 is installed around the shaft 15.

2, the dummy shaft 17 'is normally located on the left side of the shaft 15 so as not to interfere with the rotation of the belt 16'. If the dummy shaft 17 is moved to the right using a lever (not shown) before cleaning the floor plate, the brush drum 13 is not rotated because the belt 16 and the shaft 15 are separated.

The conventional upright type vacuum cleaner having such a configuration has a disadvantage in that it is inconvenient to operate because the moving distance of the dummy shaft 17 is large and thus the deformation amount of the belt 16 is increased.

Therefore, an object of the present invention is to provide a cleaner brush drum enforcement mechanism that improves the operation convenience of a mechanism for preventing damage to a cleaning object by temporarily blocking the driving of the rotary brush in an upright cleaner having a rotating brush.

1 is a perspective view showing the main part of the general upright cleaner cut out;

2 is a mechanism diagram showing a comparison of the state before and after the operation of the conventional control mechanism;

3 is a perspective view showing an enlarged control mechanism according to the present invention,

4 is a mechanism diagram showing a post-operation state of FIG. 3.

Explanation of symbols on the main parts of the drawings

11: body 12: brush bucket (conventional)

13: Brush Drum 14: Power Motor

15: 16, shaft 16: belt

17, 17 ＇: dummy shaft 22: brush case (this design)

22a: Slide groove 30: Selection lever

31: Knob 32: Brace

33: hinge

In order to achieve the above object, the present invention provides an upright cleaner that transmits power of a shaft to a brush drum by belt transmission in a brush barrel: mounted inside the brush barrel to rotate about a hinge, and the belt is A selection lever for pulling the belt backward so as not to contact the belt; And it provides a cleaner brush drum control mechanism comprising a brush barrel formed with a slide groove for moving and stopping the knob for the rotation operation of the selection lever.

At this time, the selector lever is formed at two points at intervals wider than the diameter of the shaft is formed.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

3 is an enlarged perspective view showing the control mechanism according to the present invention. The present invention is a selection lever 30 instead of the dummy shaft 17 (FIG. 2) in the upright cleaner that transmits the power of the shaft 15 to the brush drum 13 by the belt 16 transmission method in the brush barrel 22. Improve the brush barrel 22 at the same time.

The selection lever 30 according to the present invention is mounted inside the brush barrel 22 to rotate about the hinge 33 and pulls the belt 16 backward so that the belt 16 does not contact the shaft 15. It has a function. The selection lever 30 is generally formed by bending and welding a metal rod material. However, injection molding is also possible using materials with the same mechanical strength as engineering plastics.

At this time, the selection lever 30 is formed with a latch 32 is disposed at two points at intervals wider than the diameter of the shaft (15). The clasp 32 is a part in which the belt 16 is caught, and is formed in the short length so that the deflection by the tension of the belt 16 may not occur. The distance between the latch 32 is similar to the diameter of the shaft 15, the easier the operation. Compared with the length of the entire selection lever 30, the narrower the gap between the hinge 33 and the latch 32, the more convenient the force through the knob 31 is reduced.

In addition, the brush barrel 22 according to the present invention is formed with a slide groove (22a) that the knob 31 for the rotation operation of the selection lever 30 can move and stop. To this end, the slide groove 22a is provided with a narrow straight passage through which the select lever 30 moves, and a curved groove formed at both ends of the straight passage so that the select lever 30 stops at two points.

4 is a mechanical diagram showing the post-operation state of FIG.

The selector lever 30 is normally positioned forward (left side in the figure) and the latch 32 does not contact the belt 16 to clean the carpet in this state. In the case of moving the cleaner to the floor plate, when the selection lever 30 is pulled rearward (right in the drawing), the power of the shaft 15 is not transmitted to the brush drum 13. Since the brush drum 13 is stopped, the floor plate is prevented from being damaged. According to this configuration, the operation distance is shorter and more convenient than moving the dummy shaft 17 (FIG. 2) to the opposite side.

Therefore, the cleaner brush drum control mechanism of the present invention has an effect of improving the convenience of operation of the mechanism to prevent damage to the cleaning object by temporarily blocking the driving of the rotary brush in the upright type cleaner having a rotary brush.

Claims (2)

In the upright cleaner which transmits the power of the shaft to the brush drum by belt transmission in the brush barrel: A selection lever mounted inside the brush barrel to rotate about the hinge and pulling the belt backward so that the belt does not contact the shaft; And And a brush barrel formed with a slide groove for moving and stopping the knob for rotating the selection lever. The method of claim 1, wherein the selection lever Cleaner brush drum enforcement mechanism, characterized in that the latch is formed at two points at intervals wider than the diameter of the shaft.