JPH0476699B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a cleaning device used for cleaning floors, and particularly to a cleaning device equipped with a rotating brush or mop.

[Conventional technology]

Conventionally available cleaning devices have been configured to rotate a brush, pad, or mop around a vertical axis. Also,
For carpets, there was one in which the brush was rotated around a horizontal axis supported by bearings at both ends.

[Problem to be solved by the invention]

However, with a brush or mop that rotates around a vertical axis, if the floor is not smooth and has decorative grooves carved into it, it may not be possible to remove the debris stuck in the grooves. Otherwise, debris may be pushed into the groove. Also,
Because the brush, pad, or mop rotates around the vertical axis, it is not possible to clean the corners of the floor surface, and if it is made as a polisher, it may scatter dirty water around. Moreover, if the water and liquid detergent used to wash the floor surface are not collected by a separate collection means, dirt will re-adhere to the floor surface when it dries. With a brush that rotates around a horizontal axis, if the direction of the brush matches the direction of the grooves on the floor surface, it is possible to remove dirt from the grooves, but the direction of the grooves and the direction of the brush If the brushes are different from each other, it will not be possible to effectively remove the dirt, and if the floor has grooves in multiple directions, dirt will inevitably remain on the floor, so you may have to clean the floor many times by changing the direction in which the brush is moved. I have to. In addition, bearings that receive both ends of the shaft and members that transmit rotation to the shaft are
Because it gets in the way when cleaning the corners of the floor where dirt tends to accumulate,
This device also has the problem of not being able to clean the corners of the floor surface. The present invention has been made in view of these points, and its purpose is to provide a cleaning device that can quickly and easily clean every corner of a floor surface.

[Means to solve the problem]

However, the cleaning device according to the present invention is provided with a flexible rotary shaft bent in an arc shape with a center angle of around 180° or less than 180°. Plant brushes in
The first feature is that a means for collecting dust, etc. is arranged on the side where the tip of the brush gathers, and the rotation axis has a central angle within 180° in a plane almost parallel to the floor surface. It is bent in an arc shape, and the repair method for garbage etc.
The second feature is that the planar shape is V-shaped and is formed as a skirt made of a rubber plate or the like that runs along both end surfaces of the brush and whose lower edge is in contact with the floor surface. A cleaning device is provided with a rotary shaft having a magnetic field, brushes are implanted radially on the rotary shaft that is driven to rotate around the shaft, and a motor is directly connected to one end of the rotary shaft,
The third feature is that it includes a handle portion for holding the rotating shaft on which the brush is installed so as to be parallel to the floor surface. [Function] According to the first feature of the present invention, the brush rotates in a vertical plane, and the rotating shaft on which the brush is installed has flexibility by being bent in an arc shape. Because of this, even if grooves are carved in multiple directions on the floor surface, it is possible to scrape out the dirt in these grooves and send it to the collection means, and the corner of the floor surface can also be used as a bearing for the rotating shaft. According to the second feature, the so-called polisher for cleaning and polishing the floor surface can be cleaned without being hindered by the power transmission part to the rotating shaft. Furthermore, according to the third feature, it is possible to obtain a highly portable device that can thoroughly clean narrow floor surfaces such as stair treads. [Example] The present invention will be described in detail below based on the illustrated example.The cleaning device shown in FIGS. 1 and 2 is designed to collect garbage scattered on the floor, A geared motor 4 and two brushes 2 and 3 which are rotationally driven by the geared motor 4 are attached to a trolley 1 which is equipped with two running wheels 10 and has a garbage storage section 11 inside. It is configured as. The brush 2 arranged on the front side of the trolley 1 is bent into an arc shape with a center angle of approximately 180° in a plane substantially parallel to the floor surface, and both ends are mounted on bearings 12, 12 on both sides of the front of the trolley 1. The flexible rotary shaft 20 is supported by a flexible rotary shaft 20, and is radially implanted over the entire axial length of the rotary shaft 20. One end side of the rotating shaft 20 protruding toward the front side of the truck 1 is connected to the geared motor 4.
When the geared motor 4 rotates, the brush 2 is connected to the output shaft of the rotary shaft 20 through a flexible shaft 21 and bevel gears 22, 23. Rotate in the direction shown by the arrow in the figure. The brush 2 is attached to the rotating shaft 20 by surrounding the rotating shaft 20 with an elastic body such as raw rubber and by implanting the brush 2 into this elastic body. Moreover, here, the length of the brush 2 planted in the center of the rotating shaft 20 is made longer than the brushes 2 planted in both ends of the rotating shaft 2. The other brush 3 is for collecting dust and is installed on a linear rotating shaft 30 installed on the front surface of the truck 1, and one end of the rotating shaft 30 is supported at both ends by bearings 13, 13. However, sprocket 32,3
2 and an endless chain 31 to the output shaft of the geared motor 4.
When the brush 3 rotates, the brush 3 rotates in the direction indicated by the arrow in the figure. Incidentally, it is preferable that the rotational speed of the brush 3 is about 2 to 3 times higher than the rotational speed of the brush 2. In the figure, 15 is a storage box stored in the garbage storage section 11 of the trolley 1, and 16 is a garbage introduction plate whose one end is in contact with the brush 3 and the other end is located in the garbage storage section 11, and at least on the brush 3 side. One end is formed of a rubber plate and has a comb-like edge. Further, numeral 17 in the figure is a semi-conical, comb-shaped lower peripheral edge that contacts the brush 2 (or is located near the brush 2) for preventing scattering of dust. However, in this lever cleaning device, when both brushes 2 and 3 are rotated by the geared motor 4 in the direction shown by the arrow in the figure, the dust scattered on the floor is moved by the brush 2 to the center where the tip of the brush 2 gathers. After being raked into the garbage compartment, the garbage is sent upward between the brushes 2 and 3, passes over the garbage introduction plate 16, and enters the storage box 15. The cover 17 prevents dirt from coming out again while remaining attached to the brush 2, and since one end of the dirt introducing plate 16 is in contact with the brush 3, dirt remains attached to the brush 3. , you won't be sent to the rear. Since the brush 2 rotates in a vertical plane while facing in each direction, even if there is a groove carved into the floor surface and the direction of this groove does not match the direction in which the cleaning device is moved, The dirt that has entered is scraped out and sent into the storage box 15, and since the rotating shaft 20 on which the brush 2 is installed is bent in an arc shape, there is no space near the wall on the floor. Of course, the corners can also be cleaned without the bearing 12 etc. getting in the way. Furthermore, even if the floor surface is uneven or there are members protruding from the floor surface, the rotating shaft 20 of the brush 2
Only both ends are supported by bearings 12, 12, and the part of the rotating shaft 20 where the brush 2 is implanted can move up and down due to the flexibility of the rotating shaft 20. In addition, the brush 2 moves up and down depending on the presence of the unevenness or protruding members, and the presence of the unevenness or protruding parts does not interfere with cleaning. In place of the brush 3, as shown in FIG.
A flat skirt 5 made of a rubber plate or the like whose lower end is in contact with the floor surface, or a skirt 5 whose center part fits under the brush 2 as shown in FIG. 4, is arranged as a collection means. You may. Furthermore,
As a means of repairing garbage, as shown in Figure 5,
It is also possible to employ a combination of the vacuum suction device 6 with the skirt 5 and the brush 3. In the figure, 60 is a suction duct led out from the vacuum suction device 6, and its tip is opened near the upper part of the center where the tip of the brush 2 gathers. In the embodiment shown in FIG. 6, the top surface of the truck 1 is a sloped surface with a downwardly downward slope, and the geared motor 4 is installed on this slope, so that one end of a flexible rotary shaft 20 can be directly connected to the geared motor. In addition to making it easy to connect to the motor 4, a pulley 34 is provided in the middle of this rotating shaft 20, and a belt 36 is provided between the pulley 35 provided at one end of the rotating shaft 30 of the brush 3 and the pulley 34. Connect with
Rotational force can be transmitted to the brush 3 through the rotating shaft 20. Worms and worm wheels can also be used instead of pulleys and belts. FIG. 7 shows another embodiment. This uses a vacuum suction device 6 like a household vacuum cleaner as a repair means, and a brush 2 is installed on a rotating shaft 20 bent in an arc shape with a central angle of approximately 180°. , both ends of the rotating shaft 20 are supported by bearings 12, 12 arranged on both sides of a cylindrical frame 45 having a rectangular front opening, and a guide plate is inserted forward from the lower edge of the front opening of the frame 45. 46 is extended. The front end of the guide plate 46 is bent downward. The vacuum suction device 6 is connected to the narrowed rear end opening of the cylindrical frame 45 via a pipe 61.
Furthermore, although the motor 4 that drives the rotating shaft 20 is disposed on the side surface of the frame 45 here, the rotating shaft 20 may be rotated manually or may be rotated using other power. However, in this cleaning device, as shown in the figure, the rear end side of the frame 45 is lifted so that the brush 2 and the front end of the guide 46 are in contact with the floor surface. The brush 2 operates to move the dirt on the floor in this state, and the dirt that is scraped from three directions by the brush 2 is
It is led to the vacuum suction device 6 through the front opening of the cylindrical frame 45 . Still other embodiments are shown in FIGS. 8 and 9. This cleaning device is formed as a polisher for cleaning and polishing floor surfaces, and a flexible rotary shaft 20 is arranged on the front of a cart 1 so that the center angle is approximately 90°. Both ends and the center of this rotating shaft 20 are supported by bearings 12, and a skirt 5 is provided so as to form a V-shape when viewed from above.
In the figure, 18 is a support rod for the central bearing 12;
19 is a handle, and 25 is a sewage scattering prevention plate.
Further, the wheels 10 of the truck 1 are retractable. In use, after spraying liquid detergent or water on the floor surface, the cleaning device with the wheels 10 retracted may be moved while rotating the brush 2. A brush 2 whose deflection is regulated by being supported by a bearing 12 in the center comes into contact with the floor surface with the required pressure to clean and polish the floor surface. The waste is collected in the center by the skirt 5 whose lower edge is in contact with the floor surface, and sent into the storage box 15 along with dirt, dust, etc. At this time, the brush 2 is used to apply water or liquid detergent to the skirt 5.
Since the skirt 5 is V-shaped when viewed from the top, the liquid detergent and water are not sprayed from the sides. Since the water and liquid detergent are collected in the storage box 15 together with dirt and garbage, there is no need to collect the water and liquid detergent with a separate collection device. The skirt 5, which is V-shaped when viewed from the top, has a lower end that digs into the floor surface unlike if it were straight, which makes it difficult for the cart 1 to move. This allows the trolley 1 to move smoothly, and even if there are grooves on the floor, the tip of the brush 2 fits into the grooves, ensuring that the bottom of the grooves is also cleaned. Moreover, since the brush 2 spreads out in a fan shape when viewed from the top, the brush 2 can be applied to the corners of the floor surface to clean it. Another embodiment is shown in FIGS. 10 and 11. This is for cleaning (washing) narrow places such as stair treads, and the brush 2 is installed on a rotating shaft 20 bent in an arc shape with a small radius of curvature, and the rotating shaft 20 is supported. In a housing 40 with a handle 41 attached to a frame 45 for
It is a handheld type equipped with a geared motor 4 to which one end of the rotating shaft 20 is directly connected, and the brush 2 is held by holding an auxiliary handle 42 that can be rotated within a 90° range and a handle 41 attached to the housing 40. By rotating it, you can clean the treads of the stairs. At this time, even the corners of the tread where dirt tends to accumulate can be reliably cleaned by pressing the center of the rotating brush 2. Incidentally, the frame 45 also serves to prevent dust from scattering. As the housing 40 and the geared motor 4, the main body of an electric drill can be used as shown in the illustrated example. Further, as the brush 2, a brush with an abrasive or a mop may be used.

【Effect of the invention】

As described above, in the present invention, not only the brush is rotated in a vertical plane, but also the rotating shaft on which the brush is installed is bent in an arc shape with a central angle of around 180° or within 180°. Because it is flexible, even if grooves are carved in multiple directions on the floor surface, it is possible to scrape out the dirt in these grooves and send it to the collection means, and the corners of the floor surface can also be rotated. It can be cleaned without being hindered by the shaft bearing or the power transmission part to the rotating shaft, and has the advantage that it can be used even on roads, lawns, etc. According to a second feature of the present invention, a so-called polisher for cleaning and polishing a floor surface can be used to reliably clean even if there are grooves on the floor surface, and it can also be used in corners of the floor surface or near walls. It can be configured to be able to clean the air, and since the center angle of the rotation axis is within 180° and the planar shape of the collection means is V-shaped,
The liquid detergent and water sprinkled on the floor can be reliably collected together with dirt and dust, and the post-treatment of the liquid detergent and water is facilitated. According to the third feature of the present invention, it is possible to obtain a highly portable device that can easily clean every corner of a narrow floor surface such as a stair tread.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of one embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a longitudinal sectional view of another embodiment.
4a and 4b are a longitudinal sectional view and a partial plan view of another example of the same as above, FIG. 5 is a longitudinal sectional view of still another example of the same as above, FIG. 6 is a broken side view of another example of the same as above, and Figures a and b are a broken side view and a perspective view of yet another example, Figure 8 is a longitudinal sectional view of another embodiment, Figure 9 is a plan view of the same, and Figure 10 is a cross-sectional view of another embodiment.
The figure is a longitudinal sectional view of another embodiment, and FIG. 11 is a plan view of the same, in which 1 is a truck, 2 is a brush, 3 is a brush, 4 is a geared motor, 5 is a skirt, 12 is a bearing, and 20 is a Indicates the axis of rotation.

Claims (1)

[Claims] 1. A flexible rotary shaft bent in an arc shape with a central angle of around 180° or less than 180° is provided, and brushes are radially attached to the rotary shaft that is driven to rotate around the shaft. A cleaning device characterized in that a means for collecting dirt, etc. is arranged on the side where the tip of the brush gathers. 2. The rotating shaft is bent into an arc shape with a center angle within 180° in a plane that is almost parallel to the floor surface, and the means for repairing dirt, etc. is V-shaped in plan and extends along both end surfaces of the brush and the lower edge. 2. The cleaning device according to claim 1, wherein the skirt is formed as a skirt made of a rubber plate or the like that contacts the floor surface. 3. A cleaning device that is provided with a flexible rotary shaft bent into an arc shape, brushes are installed radially on the rotary shaft that is driven to rotate around the shaft, and a motor is directly connected to one end of the rotary shaft. 1. A cleaning device comprising a handle portion for holding a rotating shaft on which a brush is installed parallel to a floor surface.