JPS61238219A - 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 a conventional floor nozzle of this type, a suction chamber containing a rotating brush and a turbine chamber containing an air turbine are formed in the floor nozzle body connected to the suction side of a vacuum cleaner. , and these two chambers are communicated through a vent 6.

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.

As another method, a rotary brush driving electric motor is disposed within the floor nozzle body, and a power cord is wired from an outlet provided in the vacuum cleaner body to the outer periphery of the hose extension tube to drive the rotary brush. There is a so-called electric brush type 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 placed 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 suction power, and most of the performance of the vacuum cleaner itself is reduced. There is a problem that the air turbine consumes it.

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

In addition, in the case of the latter type of electric brush type floor nozzle, most of them have a wire that sends current to the electric motor in the floor nozzle from an outlet installed in the vacuum cleaner body to the floor nozzle, and is 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 devised for serious carpet cleaning, and because it drives a large rotating brush, the electric motor is also large, and the entire floor nozzle is removed; it is large and extremely difficult to clean. It was difficult.

Furthermore, in both types, the rotational speed of the rotating brush varies depending on the load on the surface to be cleaned and the suction force of the vacuum cleaner body, and the rotation is stopped when cleaning a folded or wooden floor.

The present invention solves these conventional problems and provides a floor nozzle that is easy to use.

Means for Solving the Problem The technical means of the present invention for solving this problem is to provide a battery as a power source for the electric motor for driving the rotating brush, and further add a control circuit for the electric motor.

For production The effect of this technical means is as follows.

That is, when the vacuum cleaner main body is operated and the rotating brush is also operated, dust on the surface to be cleaned is scraped up by the rotating brush and sucked into the vacuum cleaner main body.

Further, by controlling the output of the electric motor using a control circuit, the rotation speed of the rotating brush can be changed arbitrarily.

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 15 denotes a substantially semi-cylindrical connection case, which is disposed at the rear center of the suction chamber 12 and connected to the upper and lower main body members 8 and 9 so as to be able to rise and fall. A connection pipe 1e is rotatably connected to the opening of the connection case 16, and is connected to the suction side of the cleaner body.

1 is a power shaft that takes out the rotational force of the electric motor 14, and a pulley 18 is attached to the tip. This pulley 1
A belt 20 is looped from 8 to a pulley 19 attached to one end of the rotating brush 11, and power is thereby transmitted. 21 is a bearing provided at both ends of the rotating brush 110, 22 is a switch, and 23 is a control circuit for the electric motor 14. The switch 2 is used to control the rotation speed set according to the surface to be cleaned.
Controlled by switching 2.

To clean, connect the floor nozzle body 7 to the vacuum cleaner body,
At the same time as operating the switch on the vacuum cleaner main body, the user also operates the switch 22 on the floor nozzle main body 7 to rotate the rotary brush 11 and perform cleaning.

When the surface to be cleaned is a carpet or the like, the rotating brush 11 scrapes up dust from the surface, and the suction force of the cleaner body sucks the dust.

Therefore, the reduction in the suction power of the vacuum cleaner body will cause the rotation of the rotary puller and the shaft to decrease, which will no longer result in performance deterioration.Also, since there will be no loss of suction power due to the turbine, even if the vacuum cleaner body has low performance. It is possible to obtain sufficient cleaning 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.

In particular, cleaning performance can be improved by rotating the rotary brush at low speed on tatami floors, wooden floors, etc. to assist in the initial movement of solid matter, so that even a vacuum cleaner with weak suction power can suck it up.

Effects of the Invention As described above, the present invention reduces noise by driving the rotating brush with an electric motor using battery power.

This product reduces performance loss and eliminates the need for wiring, while making it possible to change the rotation speed of the rotating brush according to the condition of the surface to be cleaned, improving dust collection performance for each floor surface.

In particular, by assisting the initial movement of solids with the rotation of a rotating brush, suction can be made easier.

[Brief explanation of drawings]

FIG. 1 is a plan view of a floor nozzle showing an embodiment of the present invention with the upper body member removed, and FIG. 2 is a perspective view. 11... Rotating brush, 13... Battery, 14... Electric motor, 23... Control circuit.

Claims (1)

[Claims] A battery, an electric motor powered by the battery,
A floor nozzle for a vacuum cleaner that includes a rotating brush driven by the electric motor and a control circuit that controls the rotation speed of the electric motor.