JPS61238222A - Floor nozzle for 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 rotating brushes.

2. Description of the Related Art Conventional floor nozzles of this kind have a vacuum cleaner suction (Il
A suction chamber in which a rotating brush is installed and a turbine chamber in which an air turbine is completely installed are formed in the floor nozzle body connected to the main body, and these two chambers communicate with each other through a vent.

When you run a vacuum cleaner, the suction force causes air to flow into the suction chamber, then through the ventilation chamber, and then into the turbine chamber, causing the air turbine to rotate. This rotation is then transmitted to the rotating brush via a power transmission means such as a belt.

Another method is the so-called electric brush type, in which a rotating brush driving electric motor is placed inside the floor nozzle body, and a power cord is routed from the outlet provided in the vacuum cleaner body to the outer circumference of the hose extension tube to drive the rotating brush. There is a floor nozzle.

Problems to be Solved by the Invention In the case of the former air turbine type floor nozzle, the rotational force of the rotating brush is generated by the air flowing in due to suction rotating the air turbine. Therefore, when the amount of air inflow decreases, the air The air flow rate hitting the turbine is reduced and the output of the rotating brushes is also reduced.

In this case, the rotating brush may not be able to rotate due to the resistance of the carpet.

In addition, since an air turbine is placed in the middle of the inflow path and the air turbine is rotated by suction power, it can only be used with a vacuum cleaner with a large suction power, and most of the performance is consumed by the air turbine. Another problem is that the sound generated when the air turbine rotates is very noisy.

In addition, in the case of the latter electric brush type, in most cases the wiring that sends current to the electric motor in the floor nozzle runs from the outlet on the vacuum cleaner itself to the floor nozzle, and is attached to a hose or extension with a hook. This wiring work is very troublesome when preparing for cleaning and cleaning up after cleaning.

In addition, this electric brush type floor nozzle was designed for serious carpet cleaning, and because it drives a large rotating brush, the electric motor is also large, making the entire floor nozzle large and making cleaning operations very difficult. It was something.

To overcome these drawbacks, a system was devised in which a batch reeler was installed inside the floor nozzle and a rotating brush was driven by an electric motor, but it had the disadvantage that it could not be operated at hand because there was no wiring like an electric brush. Was.

The present invention eliminates these conventional drawbacks and provides a floor nozzle that is easy to use and has excellent performance.

Means for Solving the Problem The technical means of the present invention for solving this problem is that in a device in which a rotating brush is driven by an electric motor using a battery as a source, a pressure switch is used to switch the battery to 0N-O.
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action The effect of this technical means is as follows.

That is, when the floor nozzle main body is placed on the floor and the vacuum cleaner main body is operated, the suction chamber of the floor nozzle main body becomes negative pressure due to the suction force. This pressure difference with the atmosphere is sensed by a pressure switch, and the first motor and battery are electrically connected.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

In Figures 1 to 3, 7 indicates the upper and lower body members 8゜9''
The floor nozzle body is connected via a knee/knee 1o2, and a suction chamber 12 with a built-in rotating brush 11 is formed in front of it, and a battery 13 and an electric motor 1 are installed in the rear.
4 are placed symmetrically on the left and right. Reference numeral 15 denotes a substantially semi-cylindrical connection case, which is arranged at the rear center of the suction chamber 12;
It is connected to the upper and lower main body members 8 and 9 so as to be able to move up and down. 16
A connecting pipe is rotatably connected to the opening of the connecting case 15, and is connected to the suction side of the cleaner body.

Reference numeral 17 is a power shaft for extracting the rotational force of the electric motor 14, and a pulley 18 is attached to the tip. This pulley 1
A bell 20 is connected to a pulley 19 attached to one end of the rotating brush 11 from 8 to transmit power. 21 is a bearing provided at both ends of the rotating brush 11, and 22 is a pressure switch for operating the electric motor 14, which is provided at one elevating support point of the connection case 15.

To clean, connect the floor nozzle body 7 to a vacuum cleaner, operate the switch on the vacuum cleaner, and place the floor nozzle body 7 on the floor.The suction force creates negative pressure inside the floor nozzle body γ, and the pressure increases. Switch 22 is activated! The motive 14 and the rotating brush 11 rotate.

In the case of a carpet, etc., the rotating brush 11 scrapes up dust from the surface to be cleaned, and the suction force of the vacuum cleaner body sucks the dust.

Therefore, the rotation of the rotary brush also decreases due to the decrease in the suction power of the main body, and the performance does not deteriorate. Also, since there is no loss of suction power due to the turbine, sufficient cleaning performance can be obtained even with a low-performance vacuum cleaner main body. be able to. Furthermore, since the noise generated by the turbine is eliminated, a quiet floor nozzle can be obtained.

Furthermore, a floor nozzle that does not require wiring, can be used with all current vacuum cleaners, and has greatly improved carpet cleaning performance can be obtained.

Effects of the Invention As described above, in the present invention, the rotating brush is driven by an electric motor using battery power, thereby reducing noise.

This reduces performance loss and eliminates the need for wiring, while also making it possible to operate the floor nozzle just by operating the vacuum cleaner itself.There is no need to bend down to operate the floor nozzle, and operability is greatly improved. This is something that can be improved.

Furthermore, when the floor nozzle is removed from the floor surface, the pressure difference with the atmosphere disappears, and the rotation of the rotating brush stops, allowing for long-term battery life and reduced noise.

[Brief explanation of drawings]

FIG. 1 is a plan view of a floor nozzle according to an embodiment of the present invention with the upper body member removed, FIG. 2 is a sectional view, and FIG. 3 is a perspective view. 7... Floor nozzle body, 11... Rotating brush, 13... Batch IJ-114...
・Electric motor, 22...pressure switch. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

[Claims] The floor nozzle body is equipped with a battery, an electric motor, a rotating brush driven by the electric motor, and a pressure switch, and the pressure switch senses the negative pressure inside the floor nozzle to electrically connect the motor and battery. Floor nozzle for vacuum cleaner.