JPS59230526A - Floor nozzle of electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a floor nozzle for a vacuum cleaner with a rotary brush bar.

Conventional structure and its problems Conventionally, in this type of floor nozzle, the rotating brush was generally simply a rotor with brush bristles planted on the outer circumferential surface of a rotor with a cylindrical cross section, and the outermost diameter was Therefore, the height of the floor nozzle was inevitably large, which became an obstacle when cleaning underneath furniture, etc. In order to solve this problem, it was considered to shorten the length of the brush bristles, but in this case, the elasticity of the bristles would reduce the effect of raking the carpet surface (brushing effect), resulting in a decrease in cleaning ability. I'm going to switch.

It is also possible to reduce the outermost diameter of the rotating brush by keeping the length of the brush bristles the same and reducing the diameter of the rotor, but in this case, fibrous dust such as hair and threads may It is not practical as it tends to get wrapped around.

OBJECTS OF THE INVENTION The present invention eliminates all of these conventional drawbacks, and aims to reduce the size of the rotating brush and, by extension, the floor nozzle, while maintaining a good brushing effect.

Structure of the Invention The present invention is a rotating brush that is entirely composed of a rotor having a flat part and brush bristles implanted in the flat part of the rotor.
Reduce the outer diameter of the rotating brush by the amount cut off on a flat surface,
In addition, the full length of the brush bristles is ensured for the brushing effect.

Description of examples Examples thereof will be described below with reference to the accompanying drawings.

In FIGS. 1 to 3, the floor nozzle main body 1 includes a bar/bar 2.
It is obtained by connecting the upper and lower body members 3 and 4 via a .The front interior thereof has a suction chamber 6 with a lower open part full suction port 6, and the rear interior thereof has a turbine chamber 7. It is formed. The turbine chamber 7 is separated from the suction chamber 6 by a partition 8, and the rear part with an opening 9 is set in an arc shape. 010 is a rotating brush provided in the suction chamber 6 in parallel thereto, and 11 is a suction brush. The bearings of the rotating brushes 10 provided on both sides of the walls of the chamber 6, the fixed brushes 12 and 13 and 14 installed parallel to the rear of the suction port 6, and the bearings 13 and 14 of the rotary brushes 10, 13 and 14, which are positioned so that the suction port 6 and the surface to be cleaned are at a constant distance. These are wheels provided at the front and rear of the floor nozzle body 1.

Reference numeral 16 denotes a lattice cylindrical suction joint that rotatably slides on the rear inner surface of the turbine chamber 7. A connection port 16 projects rearward from a part of its peripheral wall in a cylindrical shape, and is connected to the suction joint through a ring 17. A floor nozzle pipe 18 is rotatably attached, and an extension pipe communicating with the suction side of the vacuum cleaner via a hose is detachably connected. This turbine is surrounded by a suction joint 16, and is integrally provided with a shaft body 20 that penetrates the rotating shaft on one side of the suction joint 16 and projects outside the turbine chamber 7.

Reference numeral 21 denotes a power transmission belt, which transmits the rotation of the turbine 19 rotated by the wind flow to the rotating brush io via a pulley 22.

Further, the turbine 19 is disposed so as to be biased toward the belt 21 disposed side of the turbine chamber 7. 23 and 24 are two vent holes formed in the partition wall 8, one of which is the vent hole 23 that is connected to the turbine 1.
9 , the other vent 24 faces away from the turbine and directly faces the connection port 16 of the suction joint 16 .

26 is a switching lever, and a shielding plate 26 protrudes from a part thereof.
is formed with an opening 27 that communicates alternatively with either one of the vent holes 23, 24 described above. 28 is a switching knob formed integrally with the switching lever 26, and is a switching knob formed integrally with the switching lever 26.
It protrudes to the outside from an opening 29 provided in the.

Furthermore, the rotation range of the suction joint 16 with respect to the upper body member 2 is as follows:
It is regulated by the distance between stoppers 30° and 31 formed from each other.

Now, as shown in FIG. 3, the rotating brush 1o is composed of a rotor 33 having a cross-sectional shape obtained by cutting off a part of a cylinder at a substantially flat planting surface 32, and brush bristles 34 planted on the planting surface 32. be done. The planting surface 32 is twisted approximately 360 degrees from one end of the rotor 33 to the other end.

Further, the tip of the bristles 34 of the rotating brush 10 is set to protrude outward from the suction port 6 of the floor nozzle body 1.

In the above configuration, when the switching lever 26 is now slid to the right in FIG. Mouth 2
3 and the flowing suction air collides with the goobin 19, and then the suction joint 15 connection port 16-+floor nozzle pipe 18→
It flows from the extension pipe to the hose to reach the vacuum cleaner.

Therefore, the turbine 19 rotates and its rotational force is transmitted to the rotating brush 10.

Further, when the opening 27 of the shielding plate 26 is communicated with the other vent 24 via the switching lever 26, the suction air is transferred to the turbine 1.
9 flows through the turbine chamber 7 and reaches the suction joint 16, so the turbine 19 and the rotating brush 1o do not rotate.

Note that during cleaning work, the floor nozzle body 1 can be tilted up and down with respect to the suction joint 16, so regardless of the worker's posture, the suction port 6 of the floor nozzle body 1 faces the surface to be cleaned, ensuring that the suction port 6 faces the surface to be cleaned. It is capable of vacuuming dust.

By the way, the rotor 33 of the rotating brush 10 has a cross-sectional shape of a cylinder cut by a substantially flat planting surface 32,
Brush bristles 34 are planted on this planting surface 32. Therefore, as shown in FIG. 3, the distance from the rotation center of the rotor 33 to the outermost periphery 1 of the cylindrical portion and the distance from the rotation center to the planting surface are the same as the distance from the outermost part of the rotating brush 20. The diameter can be made smaller. In other words, in order to obtain a light brushing effect, the protrusion of the brush bristles 34 from the planting surface 32 in the outer circumferential direction is required to be at least a certain level, but according to this embodiment,
Even if the protruding length of the brush bristles 34 is the same as that of the conventional one, since the implanted portion 32 is moved closer to the center of rotation as described above, the outermost diameter of the brush bristles 34 is made much smaller than that of the conventional one, and therefore the rotation The outer diameter of the brush 10 can be made smaller by L than the conventional one.

In addition, the rotor 33 is changed from the conventional cylindrical shape to the planting surface 32.
Cut a part! Since it has a reduced shape, it can be lighter than conventional ones.

In the above embodiment, a turbine was used as a drive source for the rotating brush, but a motor may also be used, and the drive source is not specified.

Effect of the invention .

As explained above, the present invention uses a rotor having a cross-sectional shape in which a part of a substantially cylindrical cross-section is cut off to a substantially flat surface, and a rotating brush having brush bristles planted in this substantially flat surface. Therefore, the following excellent effects can be expected.

■The diameter of the single-rotation brush can be reduced to make the floor nozzle thinner. Therefore, it can be easily cleaned even under furniture. In addition, as the rotating brush becomes lighter and the floor nozzle becomes smaller, the public nozzle becomes lighter, improving cleaning ability and usability. A better brushing effect can be obtained.The smaller diameter of the rotating brush reduces the rotational torque, and this driving source also requires a small output, resulting in further miniaturization and compactness of the floor nozzle. It is very advantageous in terms of cost and weight reduction.

[Brief explanation of drawings]

Fig. 1 is a top view of a floor nozzle showing an embodiment of the present invention with the upper main body member partially removed; Fig. 2 is a sectional view;
The figure is a cross-sectional view of the rotating brush. 1...Floor nozzle body, 1o...Rotating brush, 32...Planting surface, 33...Rotor, 34...Brush hair.

Claims (1)

[Claims] A rotating brush is provided in the floor nozzle body, and this rotating brush includes a rotor having a planar implantation surface formed parallel to the center of rotation in the longitudinal direction, and a rotor that is implanted on this implantation surface and whose tip rotates. A floor nozzle for a vacuum cleaner consisting of brush bristles that protrude from the outer peripheral surface of the child.