JPS61238223A - 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.

Conventional technology In this type of conventional floor nozzle, the floor nozzle body connected to the suction side of a vacuum cleaner has a suction chamber with a rotating brush inside and a turbine chamber with an air turbine inside. However, these two chambers are communicated 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 drive electric motor is placed inside the floor nozzle body, and a power cord is wired 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, an air turbine is installed in the middle of the inflow path, and the air turbine is rotated by suction power, so 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. There is a problem with this.

Another problem is that the air turbine makes very noisy noise when it rotates.

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 is connected from an outlet in the vacuum cleaner body to the floor nozzle and attached to a hose or extension pipe 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 device was devised in which a battery was installed inside the floor nozzle and a rotating brush was driven by an electric motor, but unlike electric brushes, there was no wiring so it could not be operated at hand. had.

The present invention solves these conventional problems 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 a rotating brush is driven by an electric motor powered by a battery, and a switch using an air volume valve is provided. .

action The effect of this technical means is as follows.

In other words, when the floor nozzle body is connected to the suction side of the vacuum cleaner body and operated, the air flow that flows into the floor nozzle body due to the suction force operates the air volume valve, and the switch linked to this operates, causing the rotation. This is what drives the brush.

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

In FIGS. 1 to 3, 7 is a floor nozzle body constructed by connecting upper and lower body members 8°9 via a bumper 10;
A suction chamber 12 containing a rotating brush 11 is formed in front of it, and a battery 13 and an electric motor 14 are formed in the rear.
are arranged approximately symmetrically. Reference numeral 16 denotes a substantially semi-cylindrical connection case, which is disposed at the rear center of the suction chamber 12 and is connected to the upper and lower main body members 8 and 9 so as to be able to move up and down. A connection pipe 16 is rotatably connected to the opening of the connection case 16, and is connected to the suction side of the vacuum cleaner. 17 is electric motor 1
It is a power shaft that takes out the rotational force of 4, and there is a pulley 18 at the tip.
is installed. The belt 2 is connected from this pulley 18 to a pulley 19 attached to one end of the rotating brush 11.
It is multiplied by 0, and power is thereby transmitted. 2
1 is a bearing provided at both ends of the rotating brush 11, 22 is a switch that operates the electric motor 14, and 23 is an air volume valve placed between the suction chamber 12 and the connection case 16, which senses the air volume flowing inside the floor nozzle body 7. The switch 22 connected to the shaft 24 is opened and closed.

To clean, connect the floor nozzle main body 7 to a vacuum cleaner and operate the switch on the vacuum cleaner.The air volume flowing into the floor nozzle main body T displaces the air volume valve 23 and rotates the shaft 24. The switch 22 connected to is closed. Therefore, the electric motor 14 is activated and the rotating brush 11 is rotated.

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 cleaner body sucks the dust.

Therefore, it is possible to prevent the decrease in the suction power of the vacuum cleaner body, which causes the rotation of the υ rotating brush to decrease, resulting in a decrease in performance.
Furthermore, since there is no loss of suction power due to the turbine, sufficient cleaning performance can be obtained even with a vacuum cleaner body of low performance. 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 over to operate the floor nozzle, improving operability. This is something that can be greatly improved.

[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 Figure 3 is a perspective view. 7...Floor nozzle body, 11...Rotating brush, 13...Batch! J-114...
・Electric motor, 22... Switch, 23...
・Air volume valve. Name of agent: Patent attorney Toshio Nakao and one other person II
Figure 2 Figure 1! I 7 Teshi

Claims (2)

[Claims] (1) A battery, an electric motor, a rotating brush driven by the electric motor, and an air volume valve are installed inside the floor nozzle body, and the air flow inside the floor nozzle is sensed by the air volume valve.
A vacuum cleaner and floor nozzle that drives a rotating brush. (2) The floor nozzle for a vacuum cleaner according to claim 1, wherein the air volume valve is provided at a vent communicating the suction chamber and the connection case.