JPH03202035A - Floor brush - Google Patents

Abstract

PURPOSE:To more efficiently and effectively execute cleaning by moving a rotary brush arbitrary in the vertical direction by making an axis movable device moving a bearing device almost ain a vertical direction so as to be fixed. CONSTITUTION:In a boundary of a carpet and a plate, the sound wave of a sound wave generating device 13a is reflected by the floor surface and the receiving quantity received by a sound wave receiving device 13b becomes small. An electromagnetic device 12 receives this output and extrudes a movable body 12a. Thus, bearing device 9 is pushed downward against the elastic force of a spring 11. Subsequently, a rotary brush 3 is lowered to the lower position B from the normal position A, and wipes off dust stuck to a stepped part 16. Thereafter, when a floor brush body 1 is moved, this time, the sound wave generating device 13a allows a bare board floor 17 to reflect the sound wave and it is received by a sound wave receiver, a motor 2 is stopped and by the elasticity of the spring 11, the bearing device 9 is pushed upward. Also, the rotary brush 3 ascends to the upper position C from the lower position B, therefore, dust is sucked satisfactorily.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to the cleaning properties of a floor brush, particularly a floor brush with rotating brushes.

[Conventional technology]

A conventional common floor brush will be explained with reference to FIG.

In the figure, (1) is the floor brush main body, (2) is the electric motor that is the drive device built into this floor brush main body fil, and (3)
) is provided on the front side of the floor brush body +11, and is a rotating brush slightly protruding from the opening (1a) provided on the bottom surface of the floor brush body (11).A shaft (6a) is provided at both ends,
A belt (4J) that is stretched between one end of this shaft (3a) and the shaft (2a) of the electric motor (3) is capable of transmitting the driving force of the electric motor (21). (3) is a bristle brush with flocked hair, (5) is a bearing part formed on both sides of the front part of the floor brush body fil to support the shaft (5a), (6) is the center rear side of the rotating brush (3) A suction port opened in the floor brush body (1) so as to be located at the floor brush body (1).

(7) is a suction pipe with one end connected to this suction port (6) and the other end protruding from the rear of the floor brush body (1), and (8) is a wheel installed on the underside of the floor brush body +11. be.

Next, the operation will be explained. The suction pipe (7) is connected to a dust collection hose and pipe which are sequentially connected to the vacuum cleaner body (not shown). Next, start the vacuum cleaner, and
) When the electric motor (2) is started, the brush (3) rotates once and the brush (3) rotates twice.
3) Hair brush C5b) Jf! Guide it to the suction port (6) while wiping away the dust on the surface to be cleaned. Dust is sucked through the suction port (6) and trapped inside the vacuum cleaner body (not shown).

[Problem to be solved by the invention]

Conventional floor brushes are constructed as described above.For example, when cleaning between boards or between tatami mats where the two-rotation brush (3) does not rotate, the one-rotation brush (3) is used to clean the suction port (6) and the opening (6).
Since it is located between 1a) and 1a), it becomes an obstacle to the mouthpiece (6)! However, there was a problem that the suction performance was decreased.

Further, as shown in FIG. 11, when there are grooves or steps on the cleaning surface, there is a problem that the bristle brush (5b) cannot reach there and cannot wipe away dust.

This invention was made to solve the above-mentioned problems, and an object thereof is to obtain a floor brush with good cleaning performance.

[Means to solve the problem]

The floor brush according to the present invention includes a floor brush main body, a rotating brush provided in the floor brush main body, and a drive device provided in the main body for driving the rotating brush.

A bearing device that supports both ends of the rotating brush, supports the bearing device so as to be movable in the vertical direction, and moves the bearing device to the normal position when driving the rotating brush that cleans the carpet, and also moves the bearing device between the boards or the tatami mats. A shaft moving device is provided for moving the bearing device to an upper position when the rotating brush for cleaning is not driven.

A floor brush body in a housing, a drive device installed in the floor brush body, a rotating brush movably provided by this drive device, a bearing device that supports both ends of this rotating brush, and an electromagnetic device that supports this bearing device. A shaft movable device that can be freely movable and fixed in the downward direction of the road using a shaft, a detection device that is provided on the underside of the floor brush body and detects the state of the cleaning surface in contact with the floor brush body, and an output of this detection device. The electromagnetic device is equipped with a control device that controls the electromagnetic device accordingly.

[Effect]

In the floor brush according to the present invention, the shaft moving device moves the bearing device downward on the road and fixes the bearing device.

Further, the control device controls the electromagnetic device according to the output of the detection device to move the bearing device supporting both ends of the two-rotation brush in the downward direction on the road. This will be explained with reference to FIG. In the figure, buttons (1) to (4) and (6) to (8) have almost the same structure as the conventional floor brush described above. (9) is a square bearing device that rotatably holds the tip of the shaft (3a) of the rotating brush (3), and has a bearing hole (90) in the side surface into which the tip is inserted. Bearing device (9)
Bearing device (9)
It is a guide tube that guides the floor brush so that it can slide freely in the vertical direction.It is integrally molded with the floor brush body (1), and its upper part is slightly inclined to the rear and forms an arc with respect to the shaft (2a). There is. (10a) is a dustproof rubber sheet adhered to the upper surface of the guide tube α.

It has an opening in the center. α force is applied to one end of this guide cylinder α
・The other end is fixed to the bottom surface of the bearing device (9).
The spring a2 is in contact with b), and a2 is an electromagnetic device provided at the top of the bearing device (9). The guide tube is brought into contact with the guide tube.

Spring 0. The electromagnetic device 0 is collectively referred to as a shaft moving device. aS is a detection device installed across the front and rear of the bearing device (91) to detect the state of the floor surface.

The front side is a sound wave generator (13!L), and the rear side is a sound wave receiver (15b). No. 6 is a control device built into the rear part of the floor brush main body (1) which receives input from the detection device αj and controls the electromagnetic device α2 and the electric motor (2). α9 is jutan, α· is the step, and aη is the space between the plates.

Arrows in the figure indicate the flow of sound waves.

Next, the operation will be explained. 1. Start the vacuum cleaner (not shown), generate suction air through the suction port (6), and operate the hand switch provided on the dust collection hose (not shown).
The power control device shown in the figure is used to control the electric motor (
2) Start.

As shown in FIG. 3, the rotating brush (3) is at the normal position A and guides it to the suction port (6) while wiping away the dust on the jutan αS. Next, as shown in Figure 4, when you approach the step between the floor brush and the board, the distance between the floor brush body (1) and the floor increases, so the sound wave generator (13) reflects the sound on the floor. The amount of reception received by the sonic wave receiving device (13b) becomes weaker.The control device α4 reads this difference and sends it to the electromagnetic device a.
Output to a. The electromagnetic device α2 receives this output from a movable body (
Extrude 12a). As the movable body (120) is pushed out, the bearing device (91) is pushed downward against the elastic force of the spring. As a result, the rotating brush (3) is lowered from the normal position A to the lower position B. Wipe away the dust stuck to the second stage part θ.After that, move the floor brush main body (1) as shown in Fig. 5, and this time the sonic wave generator (1)
3a) reflects the sound waves between the plates (LD) and receives them at the sound wave receiving device (13b), so the control device α4 reads the reception rate of the sound waves, stops the electric motor (2), and moves the movable body (12a) t-retract, and the elasticity of the spring α9 pushes the bearing device (9) upwards.As a result, the rotating brush (3) rises from the lower position B to the upper position O, so that the opening (1a) and the suction port ( 6), and the space between the two is now free, allowing for better suction of dust.

Again, as shown in Figure 3, if you move the floor brush body (11) onto the jutan α9,
) causes the sound waves to be reflected on the jutan αS surface and received by the sound wave receiving device (1!11)), resulting in a poor reception rate of the sound waves. This difference is read by the control device α41 and the electric motor (2)
At the same time, it is output to the electromagnetic device αZ and the movable body (1
2 &) is pushed out by approximately half. This allows the bearing device (9
) is pushed and the two-rotation brush (3) returns from the upper position C to the normal position A and sends the dust to the suction port (6) while wiping the sijutan α9 surface, so the floor surface can be cleaned completely.

b) When the floor brush body (1) is lifted, the sonic wave receiving device (13b) cannot receive it at all, and the control device (I)
41 reads this and stops motor b (2) t.

Further, in the above embodiment, the control of the electromagnetic device a3 is controlled by the detection device a.
As shown in step 3, the control device α4 detects whether the electric motor (2) is ON or OFF, and the electromagnetic device a' is activated accordingly.
Alternatively, as shown in Fig. 7, the dust collection hose may be equipped with a remote control device α so that it can be operated independently, and the dust collection hose can be operated independently to remove particularly stubborn dirt from the dust collection hose. 2 rotation brush (3
) and press it against the jutan (15 side) to remove stubborn dirt.

In addition, a remote control device α14 was installed on the dust collection hose, so
It is convenient to be able to operate the two-rotation brush (3) at hand.

In the above embodiment, the detection device α3 is equipped with a sound wave generator (1
3a) and a sound wave receiver (131)), but the light emitting element and light receiving element shown in Japanese Patent Application No. 63-21795 were used to read the difference in reflectance to the floor surface. Good too. Alternatively, a microswitch having an actuator may be brought into contact with the floor, and the circuit may be opened or closed by the rise and fall of the actuator. 1, as shown in Figures 8 and 9, in the case of a 5-piece case, the actuator sinks into the 0-piece layer and closes the circuit between the plates.

During the time between the tatami mats, it floats and opens the circuit. In addition, when performing a control pattern that does not detect whether or not the electric motor (2) is driven, a fan is placed inside the suction port (6), and the rotational force of the fan is transferred to the belt. (
4) to the rotating brush (3). A so-called conventional turbine may be used as the drive device.

In addition, since the detection device α3 is installed before and after the bearing device (9), the hanging of the two-rotation brush (3) and the reflective surface of the nine light emitting device (15a) are on the same line, making it possible to perform appropriate detection. .

Further, in the above embodiment, the electromagnetic device 0 is used to move the bearing device (9) up and down electrically, but it goes without saying that it may be manually operated using a mechanical structure. Nor.

! Ta. The bearing device (9) is elastically fixed by a spring puller from below and by the electromagnetic device aZ from above, so even if it receives a strong impact from below, it will elastically absorb the force. No impact is transmitted to the bearing device (9).

Also, when cleaning a Jutan αS with high bristles such as Jaggy's Jutan α9, the floor brush should be
9, the frictional resistance between the two-turn brush (3) and the jutan is large), and a load is applied to the electric motor (2), but at this time, the one-turn brush (3) is supported by the electromagnetic device α2. 1, escape slightly above the normal position A, and move the electric motor (2
), and the two-rotation brush (
3) Frictional resistance is also reduced, allowing for better cleaning.

Leftover electromagnetic device α2. ! Motive (2), any control pattern may be configured for the detection device α (for example.

When the electromagnetic device α2 moves the rotating brush (3) to the lower position C, the electric motor +21f may be operated at low speed or reversed.

〔Effect of the invention〕

As described above, according to the present invention, the shaft movable device is provided to move the bearing device downward on the road and to fix it, so the rotating brush can be moved up and down as desired for cleaning, which improves efficiency. This has the effect of allowing good and effective button cleaning.

The control device in the housing controls the electromagnetic device according to the output of the detection device, moves the bearing device downward on the road, and moves the rotating brush up and down.

The rotating brush automatically moves up and down depending on the condition of the cleaning surface, allowing for detailed cleaning.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a floor brush showing an embodiment of the present invention;
Figure 2 is a cross-sectional view of the main part, Figure 3 is a cross-sectional view when cleaning the carpet, Figure 4 is a cross-sectional view when cleaning the step, Figure 5 is a cross-sectional view when cleaning between the boards, and Figure 6 is a cross-sectional view when cleaning between the boards. A control block diagram, FIG. 7 is a perspective view showing another embodiment of the present invention, FIGS. 8 and 9 are cross-sectional views showing other embodiments of the present invention, and FIG. 10 is a diagram showing a conventional floor brush. A cross-sectional view, FIG. 11 is a cross-sectional view at the time of cleaning the stepped portion. In the figure, (1) is the floor brush body, (2) is the drive device. (3) is a rotating brush, (4) is a suction port, (9) is a bearing device, (13 is an electromagnetic device, α0.α9.α2 is a shaft moving device, (L3 is a detection device, Q4 is a control device, A is a normal The position C is the upper position. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (2)

[Claims] (1) a floor brush main body, a rotating brush provided within the floor brush main body, a drive device provided in the main body that drives the rotating brush, a bearing device that supports both ends of the rotating brush;
This bearing device is movably supported in the vertical direction, and the bearing device is moved to the normal position when the rotary brush for cleaning the carpet is driven, and when the rotary brush for cleaning the floorboards or tatami mats is not driven. A floor brush comprising a shaft moving device for moving the bearing device to an upper position. (2) A floor brush main body, a drive device provided in the floor brush main body, a rotating brush movably provided by the drive device, a bearing device that supports both ends of the rotating brush,
A shaft movable device in which this bearing device is movable and fixed approximately vertically using an electromagnetic device, and a detection device that is provided on the lower surface of the floor brush body and detects the state of the cleaning surface in contact with the floor brush body. A floor brush comprising: a control device that controls the electromagnetic device according to the output of the detection device.