JPS6198232A - 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 equipped with a rotating brush that is effective for cleaning carpets and the like.

Conventional technology Conventionally, the floor nozzle of this type of vacuum cleaner was manufactured using the
A configuration as shown in Publication No. 3195 was common. The configuration will be described below with reference to the drawings.

In FIGS. 3 and 4, 1 indicates an upper nozzle member 2,
It is a nozzle main body consisting of a lower nozzle member 3, with a suction chamber 4 formed in the front part of the main body, and a turbine chamber 6 formed in the rear part. Reference numeral 6 denotes a rotating brush which is rotatably disposed within the suction chamber 4 and has bristles 7 planted around its outer periphery. 8 is the turbine chamber 5
The air turbine is rotatably arranged in parallel with the rotating brush 6.

9 is a communication hole connecting the suction chamber 4 and the turbine chamber 5;

Reference numeral 10 denotes a belt serving as a power transmission means, and is stretched between a large pulley 11 provided at the end of the rotating shaft of the rotating brush 6 and a small pulley 12 provided at the end of the rotating shaft of the air turbine.

Problems to be Solved by the Invention In such a conventional floor nozzle for a vacuum cleaner, the air turbine 8 is arranged parallel to the rotating brush 6, so it is possible to reduce the dimension 2 of the end of the nozzle body. could not. That is, in order to reduce the dimension 2, the distance p between the shafts of the rotating brush 6 and the air turbine 8 must be reduced, and in this case, the outer dimensions of the rotating brush 6 and the air turbine 8 must be made smaller. Due to the inability to generate rotational torque or the inability to increase the length of the brush bristles 7, problems such as the rotating brush 6 scraping up the carpet surface and a reduction in dust absorption performance occur. Since there is a lower limit to .

The present invention solves these problems and aims to provide a floor nozzle for a small-sized vacuum cleaner.

Means for Solving the Problems In order to solve the above problems, the present invention provides a suction chamber containing a rotating brush, a turbine chamber containing an air turbine, and a communication hole connecting these suction chambers and the turbine chamber. , comprising a power transmission means for transmitting power from an air turbine to the rotating brush, and the rotating shaft of the air turbine is arranged so as to be inclined in a direction in which an outer interval is narrower than an inner interval with respect to the rotating axis of the rotating brush. This is what happens.

Effect of the Invention With the above-described configuration, the present invention brings the end of the rotating shaft of the air turbine close to the end of the rotating shaft of the rotating brush, so the end of the floor nozzle can be easily moved without reducing the external dimensions of the air turbine and the rotating brush. The size of the part can be reduced.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, 21 is the upper nozzle member 2.
2. A nozzle main body consisting of a lower nozzle member 23, with a suction chamber 24 formed in the front part of the main body and a turbine chamber 25 formed in the rear part. Further, 26 is a communication hole that communicates between the suction chamber 24 and the turbine chamber 25, and 27 is a communication hole that communicates between the suction chamber 24 and the turbine chamber 25.
A joint pipe 28 which is rotatably provided at the rear of the vacuum cleaner and connects to the dust suction pipe of the vacuum cleaner is attached. Reference numeral 29 denotes a rotating brush which is rotatably provided in the suction chamber 24 and has bristles 30.
is flocked in a spiral around its outer periphery. Reference numeral 31 denotes an air turbine that is arranged to be biased towards the wall 25a side in the turbine chamber 25, and the rotating shaft 32 is not parallel to the rotating shaft 33 of the rotating brush 29. In other words, the rotating shaft 32 of the air turbine 310 is parallel to the rotating shaft 33 of the rotating brush 29. They are arranged so as to be inclined in a direction in which the distance on the outside is narrower than the distance on the inside with respect to the shaft 33. A belt 3 34 is a power transmission means stretched between the rotating shaft 32 of the air turbine 31 and the rotating shaft 33 of the rotating brush 29.
Reference numeral 6 denotes a straightening roller that is placed in contact with the belt 34 and between the two rotating shafts 32 and 33, and is used to adjust the angle of the belt so that the belt hangs approximately at right angles to these rotating shafts 32 and 34. be.

Reference numerals 36 and 37 designate pulleys integrally formed with the belt tensioning portions of the rotating shafts 32 and 34.

In the above configuration, to explain the operation, air sucked through the suction port (not shown) of the suction chamber 24 enters the turbine chamber 26 from the suction chamber 24 through the communication hole 26.
Since the opening of the communication hole 26 is relatively small, the airflow becomes a high-speed airflow and collides with the air turbine 31. At this time, since the air turbine 31 is arranged at an angle with respect to the communicating hole 26, the suction airflow impinges obliquely at a certain angle rather than perpendicularly to the surface of the air turbine 310. In this way, the air turbine 31 rotates, and its power is transmitted to the rotating brush 29 via the rotating shaft 36, the belt 34, and the rotating shaft 33.

As described above, according to the floor nozzle of the vacuum cleaner according to the embodiment of the present invention, the rotating shaft 32 of the air turbine 31 is connected to the rotating brush 2.
Nozzle body 21
The width of the end can be reduced.

Further, as described above, the suction airflow is caused by the air turbine 310.
Since the airflow obliquely collides with the surface, the airflow smoothly rotates the air turbine 31, moves to the center of the turbine chamber 25, and is sucked into the joint pipe 28.

Therefore, the rotational load on the air turbine 31 can be reduced and efficient rotational characteristics can be obtained.

Effects of the Invention As described above, according to the trap of the present invention, the rotation axis of the air turbine is arranged at an angle with respect to the rotation axis of the rotation plan in such a direction that the outer spacing is narrower than the inner spacing. The width dimension of the end of the nozzle can be reduced, and a floor nozzle for a compact vacuum cleaner can be provided.

[Brief explanation of drawings]

FIG. 1 is a plan sectional view showing the internal structure of a floor nozzle of a vacuum cleaner according to an embodiment of the present invention, FIG. 2 is an external perspective view of the same, and FIG. 3 is an external perspective view of a conventional vacuum cleaner floor nozzle. figure,
FIG. 4 is a plan sectional view showing the internal configuration. 24... Suction chamber, 26... Turbine chamber, 26... Communication hole, 29... Rotating brush, 31... Air, --My, 3°°"-<
'' ) ('Jh 'jE fixa+R).・[Name of 1 agent Patent attorney Toshi Nakao Haga1
Figure 1 Figure 2

Claims (2)

[Claims] (1) A suction chamber containing a rotating brush, a turbine chamber containing an air turbine, a communication hole connecting these suction chambers and the turbine chamber, and a power transmission means for transmitting power from the air turbine to the rotating brush. A floor nozzle for a vacuum cleaner, wherein the rotation axis of the air turbine is inclined with respect to the rotation axis of the rotary brush in a direction in which an outer interval is narrower than an inner interval. (2) A floor nozzle for a vacuum cleaner according to claim 1, which uses a belt and a straightening roller as a power transmission means.