JPH0621563U - Floor rotating brush device - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a floor rotating brush device that can reduce the burden on the user, can be used during charging, and can be easily charged by a general-purpose battery charger or a commercial power source. [Structure] A DC motor and a secondary battery for the power source of the DC motor are mounted on a mount with a handle, and a rotating brush is installed under the mount while being rotated by the DC motor. A rotary brush device for floors, which has a start / stop switch for rotating / stopping on a push handle, has multiple secondary batteries for power supply as a general-purpose battery charger, a cartridge with a power receiving port from a commercial power supply, one cartridge The mounting part is provided on the mounting base.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a type of brush used for cleaning a floor without rotating the brush, a brush made of sponge, a brush made of sponge dusted with abrasive particles, a brush made of felt, a brush made of cloth and other brushes, and the wheels not touching the floor. Floor cleaning machines, floor polishing machines, etc.

[0002]

[Prior art]

 Conventionally, a floor polisher that operates with a secondary battery is described in Japanese Patent Application Laid-Open No. 3-244449.

[0003]

[Problems to be solved by the device]

 In the floor polisher described in the above-mentioned conventional technology, since the secondary battery is provided on the handle side, most of the weight of the secondary battery is in the hands of the user, and a heavy burden is placed on the user. It has the disadvantage that it does not work.Because the rechargeable battery with a built-in handle is removed together with the handle for charging with the attached charging stand, it cannot be used while the rechargeable battery is being charged, and the special specifications Since it is a type that charges from the charging stand of the above, there is an inconvenience that it cannot be charged by directly connecting a general-purpose battery charger or a commercial 100V power supply.

An object of the present invention is to provide a new floor rotating brush device which can reduce the burden on the user, can be used even during charging, and can be easily charged by a general-purpose battery charger or a commercial power source. Is.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the rotary brush device for a floor according to the present invention has a DC motor and a secondary battery for the power source of the DC motor on a mounting base with a hand handle, and also under the mounting base. In the rotary brush device for the floor, in which the rotary brushes are provided in the state of being rotated by the DC motor, and the start / stop switch for rotating / stopping the DC motor is provided on the push handle, the secondary battery for the power source is the general-purpose battery charger. It has a plurality of cartridges with an inlet for commercial power, and the mounting part for one cartridge is provided on the mounting base.

[0006]

[Action]

 Since the DC motor and the secondary battery for the power source of the DC motor are installed on the mounting base, the weight of the secondary battery is borne by the rotating brush, and the hand-pushed handle hardly bears it. In addition, we have multiple secondary batteries for power supply as a general-purpose battery charger and a cartridge with a receiving port for commercial power, and the mounting part of one cartridge is provided on the mounting base, so when one cartridge cannot be used. Can be used by replacing it with other cartridges, and the old one can be charged while using this new one, and it can be charged with a general-purpose battery charger or a commercial 100V power source. It is possible to

[0007]

[Effect of device]

 As described above, the floor rotating brush device according to the present invention has a small burden on the user since the weight of the secondary battery is not placed on the handlebar handle, and as described above, replacement charging is possible. Therefore, the floor rotating brush device according to the present invention has the convenience that it can be easily charged with a battery charger or a commercial power source even if one side is being charged. is there.

[0008]

【Example】

 The embodiment shown in FIGS. 1 and 2 can be in a tilted state (indicated by a phantom line in FIG. 1) when in use and in an upright state (indicated by a solid line in FIG. 1) when not in use. On the rear part, and a portable caster 2 to be used for landing when transferring the whole to another place. Below the rear part, a mounting base 4 having a skirt-like surrounding edge 3 is formed. Then, the DC motor 6 with the speed reducer 5 is attached to a substantially central portion of the mounting base 4 with the rotary shaft 7 thereof facing downward, and the brush base 8 is exchangeably fixed to the lower end of the rotary shaft 7 and the brush base is attached. A brush 9 is replaceably attached to the lower surface of 8 to form a polisher main body 23, and a bottom plate 14 having a large hole 20 through which a DC motor 6 and an electric circuit box 31 are inserted is closed separately from the polisher main body 23. A pair of small sealed lead storage batteries 10 and 11 for high rate discharge of 12 V are fixed on both sides of the mold case 15, and a charging plug 16 and a power supply outlet 17 are provided in the case 15 to form a cartridge. Insert the cartridge onto the mount 4 with the storage batteries 10 and 11 in a well-balanced position on the left and right sides of the DC motor 6 and the power supply outlet 17 into the power receiving plug 18 provided on the mount 4 in advance. It is fixed in the entrapped state and the detachable state.

FIGS. 4 and 5 show another cartridge, which has a handle 21 in the center of the bottom wall 19 of which a large hole 20 through which the DC motor 6 and the electric circuit box 31 are inserted is formed. A dish-shaped case 22 is formed, and the same sealed lead-acid batteries 10 and 11 as described above are fixed to the left and right sides of the case 22, and the case 22 is provided with a charging plug 16 and a power supply outlet 17 to form a cartridge. Then, the cartridge is mounted on the mounting base 4 of the polisher main body 23 in such a manner that the storage batteries 10 and 11 are positioned on the left and right sides of the DC motor 6 in a well-balanced manner and the power supply outlet 17 is provided in advance on the mounting base 4. The power receiving plug 18 is fixed in a state of being inserted and in a state of being removable.

Next, the electric circuit of the above embodiment will be described with reference to FIG. That is, the DC motor 6, the storage batteries 10 and 11, the fuse 24, the start / stop switch 25, the power MOS / FET 26, the FET start circuit 27, the voltage shortage detector 28, the voltage shortage indicator lamp 29, and the mercury switch 30 were connected. When the start / stop switch 25 is turned on (A contact side), the FET start circuit 27 gives a repeating signal of on / off to the power MOS / FET 26. This on / off repetitive signal turns on / off at a high speed and remains on after about 1 to 3 seconds, and the on length gradually increases with time during on / off ((( (See A)) and implement a slow start. When the start / stop switch 25 is turned off (B contact side), the electric power of the storage batteries 10 and 11 passes through the fuse 24 and the drain D of the power MOS / FET 26 through the points C and B of the start / stop switch 25. Flow to. At this time, if the power MOS • FET 26 is not short-circuited, it remains as it is, and if short-circuited, a large current will flow and the fuse 24 will be blown. This fusing protects the circuit. When the voltage of the storage batteries 10 and 11 drops to a predetermined voltage due to use, the voltage shortage detector 28 detects the drop and shuts off the source S-drain D of the power MOS • FET 26 to stop the motor. And Further, the mercury switch 30 is attached to an appropriate portion of the polisher main body 23 in a state in which it is turned off when the hand handle 1 is in a non-use (upright) state and is turned on in a use (inclined) state. When it is turned off and once turned off, it is incorporated in the circuit so that the motor does not start unless the start / stop switch 25 is turned on again, and it functions as a safety switch. Details thereof are omitted in FIG.

There are the following methods for performing a slow start. That is, the first method shown in FIG. 6 is to adjust the VR to make the resistance value large at first and decrease with time so that the supply voltage to the DC motor is gradually increased, and thus the rotation is gradually increased. It was done. The second method shown in FIG. 7 uses a semiconductor as the variable VR instead of the VR. That is, the voltage of the storage battery is divided by VR to change the voltage of the gate (G) to change the current of the semiconductor. Since this method consumes a large amount of power in the variable VR and generates a large amount of heat, it is necessary to provide a large heat sink in the semiconductor. Further, in the third method shown in FIG. 8, when the switch SW is turned on, the full voltage is applied to the DC motor. Therefore, when the switch SW is turned on and off at high speed, the result becomes as shown in FIG. 9A, and when the ON time is lengthened with time, it becomes equivalently as shown in FIG. 9B. That is, the voltage is gradually increased with time to perform a slow start. When the switch SW is off, no current flows and the power consumption is 0. When it is on, the internal resistance is small and power consumption is low. There is little heat generation.

In the case of implementation, a battery charger is provided in the cartridge when the charging is performed by using a commercial 100V power source, and when a charging is performed by using a general-purpose battery charger, the charging is performed in the cartridge. No battery charger is provided.

The small sealed lead-acid batteries 10 and 11 will be described. These small sealed lead storage batteries 10 and 11 are excellent in that they have a large output, maintenance-free, no liquid leakage, and can be used in any orientation and can be moved in any orientation. In addition, it has a rectangular shape of 98 × 98 × 150 (mm), the material of the battery case is ABS resin, and the weight is about 4 kg. The electrical data is shown in Table 1.

[0014]

[Table 1]

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway side view of the same.

FIG. 2 is likewise an electric circuit diagram.

FIG. 4 is a partially cutaway front view showing another cartridge.

FIG. 5 is a partially cutaway side view of the same.

FIG. 6 is an electric circuit diagram showing a first method of slow start.

FIG. 7 is an electric circuit diagram showing a second method of the same.

FIG. 8 is an electric circuit diagram showing a third method of the same.

FIG. 9 is an explanatory diagram showing a relationship between a pulse and a voltage.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handwheel 2 Caster 3 Enclosure 4 Mounting stand 5 Reducer 6 DC motor 7 Rotating shaft 8 Brush stand 9 Brush 10 Storage battery 11 Storage battery 14 Bottom plate 15 Case 16 Charging plug 17 Power outlet 18 Power receiving plug 19 Bottom wall 20 Hole 21 Propeller 22 Case 23 Polisher 24 Fuse 25 Start / stop switch 26 MOS • FET 27 FET start circuit 28 Undervoltage detector 29 Undervoltage indicator lamp 30 Mercury switch 31 Electric circuit box

Claims (1)

[Scope of utility model registration request] 1. A DC motor and a secondary battery for the power supply of the DC motor are mounted on a mounting base with a handwheel, and a rotating brush is installed under the mounting base while being rotated by the DC motor. A rotary brush device for floors, which has a start / stop switch for rotating / stopping the electric motor on a hand handle, has a secondary battery for power supply as a general-purpose battery charger and a cartridge with a power receiving port for commercial power supply. A rotary brush device for a floor, characterized in that a mounting portion for two cartridges is provided on a mounting base.