JPH07178023A - Cleaning device - Google Patents

Abstract

PURPOSE:To provide a small-sized and lightweight cleaning device partially overlapped with the cleaning areas of multiple cleaners rotated in contact with the surface to be cleaned, generating no dirt unremoved area between them, eliminating the trouble of reciprocated cleaning, requiring no additional auxiliary cleaner, simplifying the structure, and reducing the number of part items. CONSTITUTION:Multiple brushes 13, 13 provided on a device main body movable along the surface A to be cleaned via rotary shafts 12, 12 nearly perpendicular to the surface A to be cleaned are formed into elliptic shapes each provided with a long part 13a and a short part 13b having mutually different distances from the rotation center, respectively. The distance H between rotation centers is set so that the cleaning areas D by rotation of the long parts 13a of the brushes 13, 13 are partially overlapped E, and the brushes 13, 13 are rotatively driven apart by 90 deg. in phase so that they do not interfere with each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for cleaning a floor surface of a building or a vehicle such as a train.

[0002]

2. Description of the Related Art In a conventional cleaning device, as shown in FIG. 4, a pair of left and right rotating shafts 2 and 2 are attached to a device body 1 which is movable along a surface A to be cleaned such as a floor surface. Is provided rotatably by a motor drive (not shown) in a state of protruding substantially perpendicularly to them, and circular brushes 3 and 3 as cleaning tools are attached to the lower ends of these rotary shafts 2 and these brushes 3 and 3 are attached to the surface to be cleaned. By moving the apparatus main body 1 while making contact with A and rotationally driving it, dirt on the surface A to be cleaned can be continuously swept and cleaned.

In such a cleaning device, the two left and right circular brushes 3, 3 are attached at a certain interval so that they do not interfere with each other during their rotation. When the cleaning mechanism is moved in the direction perpendicular to the line segment connecting the rotation centers of
An uncleaned uncleaned area C is formed between the three cleaning areas B, B. In order to clean it, the device body 1
It was necessary to move it back and forth for cleaning, and the work was troublesome and inefficient.

Therefore, as shown in FIG. 5, another auxiliary brush 4 as an auxiliary cleaning tool is provided between the left and right brushes 3, 3 behind each other via a rotary shaft 5 to sweep the uncleaned area C. There is known a cleaning device for cleaning.

[0005]

By the way, in the above-mentioned cleaning device, not only the pair of left and right brushes 3 and 3 as the cleaning tool but also the auxiliary brush 4 as the auxiliary cleaning tool is required, and the rotating shaft 2 is also required. , 2 and another rotary shaft 5
In addition, the bearings and brackets for mounting these rotary shafts 2, 2 and 5 to the apparatus main body 1 and a complicated drive mechanism for rotationally driving them by a motor are required, and the number of parts is very large, and the configuration of the entire apparatus is increased. However, it is complicated, manufacturing and assembling are troublesome, resulting in high cost, and hindering reduction in size and weight.

The present invention has been made in view of the above circumstances, and it is an object of the present invention that the cleaning areas of a plurality of cleaning tools that rotate in contact with the surface to be cleaned partially overlap with each other, and the uncleaned areas are left between them. Does not occur, eliminates the trouble of reciprocating cleaning, and does not require the addition of an auxiliary cleaning tool, which simplifies the configuration and reduces the number of parts, facilitates manufacturing and assembly, and reduces cost and size. An object of the present invention is to provide a cleaning device that can be reduced in weight.

[0007]

In order to achieve the above-mentioned object, a cleaning device of the present invention has a device main body movable along a surface to be cleaned via a rotary shaft substantially vertical to the surface to be cleaned. The plurality of cleaning tools provided are configured to have a long portion and a short portion whose distances from the respective rotation centers are different from each other, and the rotation centers of the respective cleaning tools are partially overlapped with each other due to the rotation of the long portions of the cleaning tools. It is characterized in that the distance between the cleaning tools is set and the cleaning tools are rotationally driven by shifting the phases so that they do not interfere with each other.

The cleaning tool is characterized in that it is in the form of an ellipse having long portions at a large distance from the center of rotation at both ends. Further, the cleaning tool is characterized in that it has a substantially gear-like shape having radially a plurality of long portions having a large distance from the rotation center. Further, the cleaning tool is a brush for cleaning dirt on the surface to be cleaned while rotating or a pad for cleaning dirt on the surface to be cleaned while rotating.

[0009]

According to the cleaning device having the above-described structure, a plurality of cleaning tools such as brushes or pads are brought into contact with a surface to be cleaned such as a floor surface to rotate and drive the apparatus main body to move those cleaning tools. Are in the shape of an ellipse or a gear having long and short portions with different distances from the respective rotation centers, and are close to each other, but rotate in a state where they are out of phase with each other and do not interfere with each other, and the cleaning areas are Are partially overlapped with each other, so that the dirt on the surface to be cleaned can be swept or wiped clean without generating a dirt remaining area between them. This eliminates the hassle of reciprocating and cleaning, and there is no need to add an auxiliary cleaning tool, which simplifies the configuration and reduces the number of parts, facilitates manufacturing and assembly, and reduces cost and size and weight. Becomes

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be described. First, reference numeral 11 in the drawing shows the apparatus main body although only the bottom plate portion is shown. Although not shown, the apparatus main body 11 has traveling wheels, and moves on a surface to be cleaned A such as a floor surface in a building or a vehicle such as another train by a self-propelled type or a push type driven by a traveling motor. It is a possible box-shaped traveling carriage.

In the main body 11 of the apparatus, two rotary shafts 12,
12 are provided vertically apart from each other in the left and right directions, that is, substantially perpendicular to the surface A to be cleaned.
One brush 13 as a cleaning tool is attached to each of the downward extending ends of the brushes 2 and 12, and the left and right brushes 1
The rotating shafts 1 and 3 are provided by a rotary drive mechanism (not shown) including a drive motor and an interlocking member mounted in the apparatus body 1.
It is adapted to be rotationally driven via 2 and 12, respectively.

Each of the left and right brushes 13, 13 has a horizontally long oblong shape with its center portion fitted to the lower end of the rotating shaft 12, that is, the distance from each rotating center O is large or small (L ₁ > L).
₂ ) It has a form having different long portions 13a and short portions 13b. It should be noted that these brushes 13, 13 are formed by implanting a large number of brushes 15 on the lower surface of a base 14 having a horizontally long plate with rounded ends.

The left and right brushes 13, 13 are
The inter-rotation center distance H is set such that the cleaning areas D, D due to the rotation of the long portions 13a partially overlap each other (E dimension). That is, H = (2 × L ₁ ) −E, where E
The dimensional relationship of = 0 <L ₁ -L ₂ is set. Moreover, the left and right brushes 13 and 13 are rotated by the rotation drive mechanism while being out of phase with each other by a phase shift of approximately 90 °. The rotary drive mechanism transmits the rotation from the drive motor to the left and right rotary shafts 12 and 12 via interlocking members such as gears so that the left and right brushes 13 and 13 are interlocked with each other at the same rotational speed. This is a configuration in which it is driven to rotate in the opposite direction.

In the cleaning device having such a structure, the brushes 15 of the pair of left and right brushes 13, 13, which are cleaning tools, are brought into contact with the surface to be cleaned A such as the floor surface, and in this state, the rotary drive mechanism in the apparatus main body 1 While rotating the brushes 13 and 13 via the left and right rotary shafts 12 respectively, the apparatus main body 11 is moved by a self-propelled type or a manually pushed type.

As a result, the left and right brushes 13, 13 are in the shape of an ellipse having long and short portions 13a, 13b which are different from each other in the distance from the rotation center O (L ₁ > L ₂ ), and the rotation centers of the other brushes are different from each other. Although the distance H is shorter than 2 × L _{1 and} close to each other, the cleaning regions D and D are partially overlapped E because they rotate by 90 ° out of phase and do not interfere with each other. Thus, the dirt on the surface A to be cleaned can be swept and cleaned without generating an uncleaned area between them. This eliminates the trouble of reciprocating and cleaning, and eliminates the need to add a conventional auxiliary cleaning tool (auxiliary brush), which simplifies the configuration and reduces the number of parts, which facilitates manufacturing and assembly, and reduces cost. It can be made smaller and lighter.

The present invention is not limited to the above-mentioned embodiment, but is, for example, the brush 1 as the left and right cleaning tools.
Instead of 3, 13, it is also possible to have a form as shown in FIG. 2 or FIG. That is, the pair of left and right brushes 23, 23 shown in FIG. 2 has four long portions 23a radially having a large distance from the center of rotation 0, and a concave short portion 2 between them.
It is a substantially gear-shaped form of four teeth having 3b. Figure 3
The pair of left and right brushes 33, 33 shown in FIG. 8 has eight long portions 33a radially having a large distance from the center of rotation O, and has a concave short portion 33b between them, and has a substantially gear shape of eight teeth. It is in the form of. With the embodiments of FIGS. 2 and 3, the same effects as the above embodiments can be obtained.

Further, in each of the above-mentioned embodiments, the brushes 13, 23, 33 as the left and right cleaning tools are shown, but these may be pads for wiping dirt off the surface A to be cleaned while rotating. In addition, various modifications can be made without departing from the scope of the present invention.

[0018]

Since the cleaning device of the present invention is configured as described above, the cleaning regions of the plurality of cleaning tools that rotate in contact with the surface to be cleaned partially overlap with each other, and the stain-remaining region is left between them. Does not occur, eliminates the trouble of reciprocating cleaning, and does not require the addition of an auxiliary cleaning tool, which simplifies the configuration and reduces the number of parts, facilitates manufacturing and assembly, and reduces cost and size. Weight reduction is possible.

[Brief description of drawings]

FIG. 1A is a front view of an essential part showing an embodiment of a cleaning device of the present invention, and FIG. 1B is a plan view of the essential part.

FIG. 2 is a plan view of a main part showing another embodiment of the cleaning device of the present invention.

FIG. 3 is a plan view of a main part showing still another embodiment of the cleaning device of the present invention.

FIG. 4A is a partial front view showing a conventional cleaning device, and FIG. 4B is a partial plan view of the same.

FIG. 5 is a partial plan view showing another conventional cleaning device.

[Explanation of symbols]

11 ... Device main body, 12 ... Rotating shaft, 13, 23, 33
... Cleaning tools (brushes), 13a, 23a, 33a ... Long part,
13b, 23b, 33b ... Short portion, A ... Surface to be cleaned,
D ... cleaning area, partially overlapping portions of the E ... cleaning area, H ... rotation center distance, L _1, L ₂ ... distance from the center of rotation,
O ... Center of rotation.

Claims (4)

[Claims] 1. An apparatus body movable along a surface to be cleaned is provided with a plurality of cleaning tools via a rotary shaft substantially perpendicular to the surface to be cleaned, and these cleaning tools are brought into contact with the surface to be cleaned. In the cleaning device for cleaning the surface to be cleaned by moving the device main body while rotating each of them, each cleaning tool has a form having a long part and a small part different in distance from each rotation center, and A cleaning device characterized in that a distance between rotation centers is set in a state where cleaning areas due to rotation of a long portion partially overlap with each other, and rotational driving is performed with a phase shift so as not to interfere with each other. 2. The cleaning device according to claim 1, wherein the cleaning tool is in the form of an ellipse having long portions having a large distance from the rotation center at both ends. 3. The cleaning device according to claim 1, wherein the cleaning tool is in the shape of a substantially gear having a plurality of long portions radially extending from the center of rotation. 4. The cleaning tool is a brush for cleaning dirt on the surface to be cleaned while rotating or a pad for cleaning dirt on the surface to be cleaned while rotating.