JPS5853084Y2 - vacuum cleaner rotating brush - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a rotating brush for a vacuum cleaner.

For example, the rotating brushes of conventional upright vacuum cleaners or electric floor suction devices have a beater bar that vibrates the carpet surface to lift dust, and a bristle part that scrapes up the lifted dust. It has

In the above configuration, the rotation of the rotating brush effectively vibrates the carpet surface and stirs up dust.
In order to suck the dust stirred up into the suction port provided at the rear of the rotating brush, a portion of the beater bar and the flocked portion are formed in a spiral shape.
If you try to integrally mold the rotating brush body that has the brush part and the bristle insertion hole, the mold structure will become very complicated.
In practice, it is difficult to make such a mold.

Therefore, it is conceivable to create and assemble a part of the beater bar, a member with a bristle insertion hole, and a rotating brush body separately, but this method is difficult to assemble.
Processing accuracy deteriorates and costs increase.

The present invention provides a rotating brush for a vacuum cleaner that solves these problems.

An embodiment of the present invention will be described below with reference to the drawings.

First, in FIGS. 1 to 7, 1 is the main body of the vacuum cleaner, 2 is a rotating brush provided in the front chamber 1a of the main body 1, and includes a beater portion 2a for lifting dust and a rotating brush for removing the lifted dust. It has a flocked part 2b for raising the hair.

3 is a bottom seat container, the lower end of which is connected to the vacuum cleaner main body 1;
A support tube 5 inserted into a recess 4 formed at the rear of the vacuum cleaner and protruding from both sides of the flat end is fitted into the cleaner body 1 and rotatably supported by a bearing 6.

Therefore, the bottom container 3 is rotatable about the support tube 5 as a fulcrum.

Reference numeral 7 denotes an electric blower for sucking dust disposed at the lower part of the bottom container 3; 8 an inlet 9 formed on the rear surface of the front chamber 1a; and an outlet 10 formed at the upper end of the bottom container 3. A flexible hose 11 disposed between the blower 7
The rotating shaft passes through one support tube 5 and projects into the cleaner body 1.

12 is a power transmission belt wound between the tip of the rotating shaft 11 and the pulley 14 on the support shaft 13 of the rotating brush 2; 15 is a handle extending upward from the top surface of the bottom container 3;
Reference numeral 16 indicates a handle at the upper end of the handle 15, reference numeral 17 indicates an exhaust hole formed at the rear surface of the lower end of the container 3, and reference numeral 18 indicates wheels for movement.

Although not shown, a bottom seat bag is disposed at the upper end of the dust container 3.

Next, to explain in more detail based on FIGS. 3 to 12, what is shown in FIGS. 8 to 11 is a cylindrical rotating brush body 19 made of a flexible material such as rubber. On the surface of the main body 19, grooves 20 in the shape of an inverted letter are formed at intervals of 180° from one end to the center and from the other end to the center. A pair of chevron-shaped beater portions 2a are provided in a protruding manner, each connected in a straight line.

Therefore, when the rotating brush main body 19 is twisted by 180 degrees, both the grooves 20 and the beater portion 2a become spirally wound around the rotating brush main body 19 (the state shown in FIG. 3).

22 is a large diameter hole formed on both end faces of the rotating brush main body 19; 23 is a notch groove formed on both end faces of the rotating brush main body 19 so as to pass through the large diameter hole 22; In Fig. 13, reference numeral 24 denotes a flocking body, which includes a plate portion 25 made of a flexible material inserted into the inverted T-shaped groove 20, and flocking portions 2b planted at regular intervals on the plate portion 25. It consists of

A support shaft 13 inserted into the rotating brush main body 19
A flat part 26.27 and a threaded part 28. are provided at both ends of the .
29.

Reference numeral 30 denotes a flange portion which fits onto one end of the support shaft 13 and into the notch groove 23 on the end surface of the brush main body 19 facing the protruding strip 30a formed on the side surface, as shown in FIG. As shown in the figure, the inner surface of the hole formed in the flange 30 is
It comes into contact with the flat part 26 of No. 3 and does not rotate.

The pulley 14 is fitted onto the other end of the support shaft 13, and is fitted into a notched groove 23 at the end of the brush body 19, where the protruding stripes 14a formed on the side faces are opposed.

31 is a screw for fixing the pulley 14 to the spindle 13;
32.33 is a wheel that fits onto both ends of the support shaft 13;
34 connects both wheels 32 and 33 to the flange 30, respectively.
and a nut to be pressed against the pulley 14, 35 is a washer, 3
6 is a bearing.

In the above configuration, when assembling the rotating brush 2,
First, the plate portion 25 of the flocking body 24 is attached to the rotating brush body 1.
9 into the groove 20.

Next, the support shaft 13 is inserted into the brush body 19, and the collar 30 and pulley 14 are fitted onto both ends of the support shaft 13, and the collar 30 and the protrusions 30a, 1 of the boot 4 are connected to each other.
4 a into the notch grooves 23 on both end faces of the brush body 19.

Next, the washer 25 and the wheel 32 are fitted onto the end of the support shaft 13 on the side of the collar 30, and the nut 3 is fitted onto the threaded portion 28 of the support shaft 13.
Screw 4 together and tighten.

Next, with the wheel 32 fixed, pulley 14 is
Rotate 80 degrees.

Then, the brush body 19 will be twisted by 180 degrees.

Next, the screw 31 is screwed into the screw hole of the pulley 14, and the tip of the screw 31 is pressed against the flat portion 27 to fix the twisted state of the brush body 19.

Next, the washer 35 and the wheel 33 are fitted onto the end of the spindle 13 on the pulley 14 side, and the nut 34 is screwed onto the threaded portion 29 of the spindle 13 and tightened. can be obtained.

The rotating brush 2 in this state is rotatably disposed in the front chamber 1a of the vacuum cleaner main body 1 as shown in FIGS. 1 and 2, and
The belt 12 is wound around the pulley 14.

Next, when the electric blower 7 is started, the rotating brush 2 is rotated via the belt 12, and the beater portion 2a vibrates the carpet surface to lift dust.
The floating dust is scraped up by the flocked portion 2b.

The dust that has been stirred up is sucked by the blower 7,
It is collected in the bottom bag inside the bottom container 3 via the hose 8.

Then, only clean air is discharged to the outside from the exhaust hole 17.

As described above, according to the rotating brush of the vacuum cleaner of the present invention, the long grooves and a portion of the beater are formed on the outer circumferential surface of the flexible cylindrical rotating brush body along the longitudinal direction of the body, and the bristles are formed on the upper surface. A flexible plate formed by the above is inserted into the long groove, the cylindrical rotating brush body is fitted onto the support shaft, and the cylindrical rotating brush body is twisted. Since a fixing device is provided to fix the condition, there is no need to form a spiral groove in the brush body to insert the spiral beater part and the flocked part, or the beater part can be inserted into the brush body. Since the bristles are formed along the longitudinal direction, only the bristle part needs to be inserted into the long grooves formed along the longitudinal direction, and the long grooves are not linear along the brush body. Because of this, it is extremely easy to attach the bristle part to the brush body, and after that, all you have to do is fit the brush body onto the support shaft and twist it to fix it, so the workability is very good.

Furthermore, the brush main body is easy to manufacture, the precision of the rotating brush can be improved, and it can be provided at low cost.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a partially cutaway side view of the entire vacuum cleaner, Fig. 2 is a sectional view taken along line III in Fig. 1, and Fig. 3 is a part of the rotating brush. A cutaway front view, FIGS. 4 and 5 are plan views of both ends of the rotating brush, FIG. 6 is a sectional view taken along line VI-VI in FIG. 3, and FIG.
8 is a plan view of the rotating brush main body, FIG. 9 is a sectional view taken along the 2-1 line in FIG. 8, and FIGS. 10 and 11 are left and right views of the rotating brush main body. Both side views, FIG. 12 is a vertical sectional view of the flocking part body, and FIG.
It is a sectional view taken along the line ■-■ in the figure. 1...Vacuum cleaner body, 2...Rotating brush, 2a...Part of the beater, 2b...Flocking part, 8...Blower , 13... Support shaft, 1
4...Pulley, 14a...Protrusion, 19
...Rotating brush body, 20...Groove, 2
3... Notch groove, 24... Flocking body,
25...Plate part, 26, 27...
Flat part, 28゜29...Threaded part, 30...
・・Brim part, 30 a・・・・Protrusion, 31・・・・
- Screws (fixing tools).

Claims (1)

[Scope of utility model registration request] A long groove and a portion of the beater are formed along the longitudinal direction of the flexible cylindrical rotating brush body on the outer circumferential surface of the body, and a flexible plate having a flocked portion formed on the upper surface is inserted into the long groove. A rotating brush for a vacuum cleaner, characterized in that a fixture is provided for fitting the cylindrical rotating brush body onto a support shaft, twisting the cylindrical rotating brush body, and fixing the twisted state of the brush body. .