JP2001245832A - Floor suction tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor suction tool provided with a rotary brush, which can flexibly deal with the load on various surfaces to be cleaned. SOLUTION: The suction tool is provided with a suction tool body 1 with a suction hole 7 on its under surface, a rotary brush 11 to be accommodated in the suction tool body 1 facing the suction hole 7 and a bearing section 16 to receive the both ends 15 of the rotary shaft of the rotary brush 11. A mounting section 17 is formed to mount the bearing section 16 such that it can move up and down and magnets 18, 19 are provided on the top and the under surfaces of the bearing section 16 respectively. Facing respective magnet 18, 19, magnets 20, 21 bearing the same magnetic polarity as that of their paired magnet are provided over and under the mounting section 17 respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor suction device for a vacuum cleaner, and more particularly to a floor suction device provided with a rotating brush.

[0002]

2. Description of the Related Art Conventionally, as a floor suction tool of this kind, a rotary brush is rotatably housed in a suction tool body, and the rotary brush is driven to rotate by an electric motor (power brush).
And those that are rotationally driven by a turbine (turbine brushes).

In general, bearing portions for receiving both ends of the rotary shaft of the rotary brush are fixed so as to be sandwiched between upper and lower portions of a suction tool main body case.

[0004]

As described above, in the conventional rotary brush, since the bearing portion of the rotary shaft is generally fixed, the brush length is set so that the floor surface such as a flooring can be wiped or polished. When the length is increased, the contact resistance (rotational load) increases when cleaning a carpet with long hairs, and the carpet does not rotate properly. ,
There was also a problem that it could not be turned at all. On the other hand, if the brush length is shortened to eliminate such a problem, there is a conflicting problem that a floor surface such as a flooring cannot be wiped or polished.

[0005] Therefore, there is an apparatus in which a clearance is provided above a mounting section for mounting a bearing section of a rotating brush so that the rotating brush can be moved up and down.

[0006] Further, there has been proposed an arrangement in which a coil spring is interposed in a gap above the mounting portion. However, due to the characteristics of the coil spring, it is limited against various loads on the surface to be cleaned which the rotating brush contacts. The adjustment of the biasing force of the coil spring mounted in the gap is difficult, causing variations, and almost the same biasing force acts regardless of the magnitude of the load. Therefore, the coil spring cannot flexibly cope with various loads on the surface to be cleaned.

The present invention has been made to solve such a problem, and provides a floor suction tool provided with a rotating brush which can flexibly cope with various loads on a surface to be cleaned. The purpose is to do so.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a suction tool main body having a suction port on a lower surface, and is housed in the suction tool main body so as to face the suction port. A rotary brush; and a bearing portion for receiving both ends of the rotary shaft of the rotary brush. A mounting portion for vertically mounting the bearing portion is formed, and supporting means for supporting the bearing portion by magnetic force. It is characterized by the following.

In addition, a suction tool main body having a suction port on the lower surface, a rotating brush housed in the suction tool body facing the suction port, and a bearing for receiving both ends of a rotating shaft of the rotary brush are provided. A mounting portion for mounting the bearing portion vertically movable is provided, and magnets are provided on both upper and lower surfaces of the bearing portion, and magnets having the same polarity are provided above and below the mounting portion so as to face the respective magnets. It is characterized by having.

In addition, the suction tool includes a suction tool main body having a suction port on a lower surface, a rotary brush housed in the suction tool body facing the suction port, and bearing portions for receiving both ends of a rotary shaft of the rotary brush. Forming a mounting portion for mounting the bearing portion movably up and down, and providing a magnet on the upper surface of the bearing portion,
A magnet having the same polarity facing the magnet is provided above the mounting portion.

In addition, the suction tool includes a suction tool main body having a suction port on a lower surface, a rotating brush housed in the suction tool body facing the suction port, and a bearing for receiving both ends of a rotating shaft of the rotary brush. A mounting portion for vertically mounting the bearing portion, and magnetizing both upper and lower surfaces of the bearing portion, and magnets having the same polarity facing the upper and lower surfaces of the bearing portion. It is characterized by being provided in.

A suction tool main body having a suction port on a lower surface, a rotary brush housed in the suction tool body facing the suction port, and bearing portions for receiving both ends of a rotary shaft of the rotary brush; Forming a mounting portion for vertically mounting the bearing portion, magnetizing the upper surface of the bearing portion, and providing a magnet having the same polarity facing the upper surface of the bearing portion above the mounting portion. It is characterized by the following.

Further, the side surface of the bearing portion which contacts the side wall of the mounting portion is formed in an arc shape.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS.

As shown in FIG. 5 and the like, the suction device main body 1 of the present embodiment comprises an upper case 2, a lower case 3, and an upper case 2.
A lid 4 detachably mounted on the lower case 3; a rotating tube 5 rotatably supported between the upper and lower cases 2 and 3 in the vertical direction; And the like, which is supported by the joint pipe 6 and the like.

A suction port 7 which opens in the longitudinal direction is formed on the front side of the lower surface of the suction tool main body 1, and a rotary brush storage chamber 8 is formed above the suction port 7. A rotating brush 11 having a plurality of brush bodies 10 spirally mounted therein is rotatably accommodated in the rotating brush storage chamber 8 so as to face the suction port 7.

As shown in FIG. 3, on the rear side of the suction tool main body 1, a motor 12 and a driving unit 13 are provided on both sides of the rotary tube 5, and the rotary brush 11 is provided with the motor 12 Are connected via a belt 14 to be driven to rotate.

Further, as shown in FIG.
Bearing portions 16 are attached to both ends 15 of the rotating shaft, and the two bearing portions 16 are configured to be vertically movable on mounting portions 17 formed on both sides of the lower case 3. I have.

Permanent magnets 18 and 19 are mounted on both upper and lower surfaces of the bearing portion 16, respectively. Further, permanent magnets 20 and 21 having the same polarity are attached to the upper and lower portions of the mounting portion 17 in opposition to the permanent magnets 18 and 19, respectively.

In this embodiment, as shown in FIG. 2, an N-pole permanent magnet 18 is mounted on the upper surface side of the bearing portion 16,
A permanent magnet 20 having the same N-pole is attached above the mounting portion 17 (on the back side of the lid 4) opposed thereto. Also,
An S-pole permanent magnet 19 is attached to the lower surface side of the bearing portion 16, and the same S-pole permanent magnet 21 is attached to the bottom surface side of the mounting portion 17 opposed thereto. Therefore, since the upper and lower permanent magnets 18 and 20 and 19 and 21 repel each other, the bearing portion 16 floats in a non-contact manner in the upper and lower portions. In this state, the brush body 10 of the rotating brush 11 is placed on a floor such as a flooring. Each permanent magnet 1
Magnetic force of 8 to 21 is set.

When the above-described joint pipe 6 of the suction tool main body 1 is connected to a cleaner main body (not shown) via a flexible hose and an extension pipe, and the electric blower of the cleaner main body is driven, the suction port 7 is opened. When the air is sucked and the electric motor 12 is driven via the drive unit 13, the rotating brush 11 rotates.

When the floor surface such as a flooring is cleaned, as shown in FIG. 5, the tip of the brush body 10 of the rotating brush 11 is brought into a state in which the bearing 16 is floated by the magnetic force as described above. Since the floor is lightly contacted with the floor, the floor can be wiped or polished without damaging the floor, and further, dust that has entered the groove of the seam of the floor can be cleaned.

When a thin carpet or the like that is not bonded and adhered is cleaned, as shown in FIG. 6, the carpet is lifted by the attraction force. Because it moves to the uppermost position against the repulsion of the carpet, it can rotate flexibly in response to the load received from the raised carpet. Therefore, dust buried in the carpet can be blown out, and lint or the like entangled in the carpet can be sucked in without damaging the carpet surface.

When cleaning the carpet or electric carpet to which the adhesive is attached, as shown in FIG. 7, the entire rotating brush 11 moves upward in accordance with the length of the bristle feet. It can rotate flexibly in response to the load received from the like. Therefore, dust buried in the electric carpet or the like can be beaten out, and entangled lint or the like can be sucked in without damaging the electric carpet or the like.

As described above, according to this embodiment, the characteristic of the repulsive force acting between magnets having the same polarity, that is, unlike the coil spring, the state in which the distance between the magnets is large even in a limited gap. By using the characteristics that are weak and become stronger as you get closer, with a relatively simple configuration and settings,
It is possible to realize a floor suction tool provided with a rotating brush that can flexibly cope with various loads on a surface to be cleaned without rattling noise when moving up and down.

FIGS. 8 and 9 are cross-sectional views of essential parts showing another embodiment of the present invention, and correspond to FIGS. 1 and 2 of the embodiment.
The same reference numerals indicate the same or corresponding parts.

In the present embodiment, an N-pole permanent magnet 18 is provided only on the upper surface of the bearing portion 16, and a permanent magnet 20 having the same polarity (N-pole) is mounted opposite the permanent magnet 18 to the mounting portion 17.
(On the back side of the lid 4).

As described above, the permanent magnets 18, 2 having the same polarity (N-pole) on the upper surface of the bearing portion 16 and on the upper side facing the same.
Even if only 0 is provided, if the lowermost position of the bearing portion 16 in the mounting portion 17 is set to such an extent that the rotating brush 11 is in contact with a floor surface such as a flooring, the same operation and effect as in the above embodiment can be obtained. The configuration can be simplified and the cost can be reduced by reducing the number of components.

FIG. 10 is an enlarged sectional view of a main part showing still another embodiment of the present invention, and corresponds to FIG. 2 of the embodiment.
The same reference numerals indicate the same or corresponding parts.

In this embodiment, both ends 15 of the rotating shaft of the rotating brush 11 are rotatably supported by a metal bearing 16a, and a holder 16b for holding the metal bearing 16a is formed of a permanent magnet material. Both sides 16
c and 16d are magnetized to N pole and S pole. Then, a bearing portion 16 composed of a metal bearing 16a and a holder 16b
Opposite to the upper and lower surfaces 16c, 16d, permanent magnets 20, 21 having the same polarity as in the embodiment shown in FIG. With this configuration, the same operation and effect as those of the above-described embodiment can be obtained, and the configuration can be simplified and the cost can be reduced by reducing the number of components.

Further, in the present embodiment, the bearing portion 16 (holder 16) which comes into contact with the side walls 17a, 17b of the mounting portion 17 is provided.
The side surfaces 16e and 16f of b) are formed in an arc shape. With such a configuration, the bearing portion 16 (holder 16b) is caused by a load on the rotating brush 11 from the surface to be cleaned.
When the brush moves up and down, the contact area between the mounting portion 17 and the side walls 17a and 17b is reduced, so that the rotating brush 11 can move up and down more smoothly.

In the above-described embodiment, the bearing portion 16 is constituted by the metal bearing 16a and the holder 16b, and the holder 16b is formed of a permanent magnet material and magnetized. , May be magnetized.

In the above embodiment, the upper and lower surfaces 16c and 16d of the bearing 16 (holder 16b) are magnetized,
The permanent magnets 20 and 21 having the same polarity are provided opposite to the upper and lower surfaces 16c and 16d of the bearing portion 16, respectively, as in the embodiment shown in FIG.
Only the upper surface 16c of the (holder 16b) is magnetized, and a permanent magnet 20 having the same polarity is mounted on the mounting portion 17 in opposition thereto.
In the same manner as described above, if the lowermost position of the bearing portion 16 in the mounting portion 17 is set to such an extent that the rotating brush 11 is in contact with a floor surface such as a flooring, the same operation and effect as described above can be obtained. It is possible to further simplify the configuration and reduce the cost by reducing the number of parts.

In each of the above embodiments, a case has been described in which the present invention is applied to a floor suction tool provided with a rotating brush (power brush) driven by an electric motor.
The present invention can be applied to a floor suction tool provided with a turbine brush (including a rotary brush that directly rotates the rotary brush by suction air). The same operation and effect as those of the above-described embodiments can be obtained, and the turbine brush has power. This is particularly effective because the rotational force is inevitably weaker than a brush.

[0035]

As described above, according to the present invention, the suction tool main body having the suction port on the lower surface, the rotary brush housed in the suction tool body facing the suction port, and both ends of the rotary shaft of the rotary brush A bearing portion for receiving the bearing portion, and a mounting portion for vertically mounting the bearing portion, and supporting means for supporting the bearing portion with a magnetic force. Instead, it is possible to realize a floor suction tool provided with a rotating brush that flexibly responds to various loads on the surface to be cleaned.

Specifically, magnets are provided on the upper and lower surfaces of the bearing portion, and magnets having the same polarity are provided on the upper and lower portions of the mounting portion so as to be opposed to the respective magnets. The above effects can be realized.

Further, by merely providing a magnet on the upper surface of the bearing portion and providing a magnet having the same polarity in opposition to the magnet above the mounting portion, the rotating brush at the lowest position of the bearing portion in the mounting portion has a flooring. If it is set to such a degree as to be in contact with the floor surface, the same effect as above can be obtained, and the configuration can be simplified and the cost can be reduced by reducing the number of parts.

Further, both upper and lower surfaces of the bearing portion are magnetized,
By providing magnets having the same polarity opposite to the upper and lower surfaces of the bearing portion above and below the mounting portion, the same effect as above can be obtained, and the configuration is simplified and the cost is reduced by reducing the number of parts. Can be achieved.

Also, just by magnetizing the upper surface of the bearing portion and providing a magnet having the same polarity above the mounting portion facing the upper surface of the bearing portion, the lowermost position of the bearing portion in the mounting portion, as described above. Is set to such an extent that the rotating brush is in contact with a floor surface such as a flooring, the same effect as described above can be obtained, and further, the configuration can be further simplified and the cost can be reduced by reducing the number of parts.

Further, by forming the side surface of the bearing portion in contact with the side wall of the mounting portion into an arc shape, the side wall of the mounting portion can be formed when the bearing portion moves up and down due to the load on the rotating brush from the surface to be cleaned. The smoother vertical movement of the rotating brush for reducing the contact area of the rotating brush can be realized.

[Brief description of the drawings]

FIG. 1 is a longitudinal vertical sectional view of a rotating brush portion of a floor suction tool according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the embodiment.

FIG. 3 is a top view showing the internal configuration of the floor suction tool of the embodiment.

FIG. 4 is a top view of the floor suction tool of the embodiment.

FIG. 5 is a vertical cross-sectional view of a central portion viewed from a side showing an operation at the time of cleaning a floor such as a flooring in the embodiment.

FIG. 6 is a vertical cross-sectional view of the central portion viewed from the side, showing the operation at the time of carpet cleaning.

FIG. 7 is a vertical cross-sectional view of a central portion viewed from the side, showing an operation during another carpet cleaning.

FIG. 8 is a longitudinal vertical sectional view of a rotating brush portion of a floor suction tool according to another embodiment of the present invention.

9 is an enlarged sectional view of a main part of the embodiment of FIG. 8;

FIG. 10 is an enlarged sectional view of a main part showing still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction implement main body 2 Upper case 3 Lower case 4 Lid 7 Suction port 8 Rotary brush storage room 10 Brush body 11 Rotary brush 12 Electric motor 14 Belt 15 Both ends of rotating shaft 16 Bearing part 16a Metal bearing 16b Holder 16c Upper surface 16d Lower surface 16e, 16f Side 17 Mounting part 17a, 17b Side wall 18-21 Permanent magnet

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Takashi Tanaka 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Sadaki Kodera 2-5-2 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (72) Inventor Toshizo Kobayashi 2-5-5 Keihan Hondori, Moriguchi-shi, Osaka 2-5 Sanyo Electric Co., Ltd. (72) Koichi Nakai, Keihan-hon, Moriguchi-shi, Osaka 2-5-5, Sanyo Electric Co., Ltd. F-term (reference) 3B061 AA06 AA26 AD05 AD17 AE12

Claims (6)

[Claims] 1. A suction tool main body having a suction port on a lower surface, a rotating brush housed in the suction tool body facing the suction port, and a bearing portion for receiving both ends of a rotating shaft of the rotating brush. A floor suction tool comprising: a mounting portion for mounting the bearing portion so as to be vertically movable; and supporting means for supporting the bearing portion by magnetic force. 2. A suction tool body having a suction port on a lower surface, a rotating brush housed in the suction tool body facing the suction port, and a bearing for receiving both ends of a rotating shaft of the rotating brush. A mounting portion for mounting the bearing portion vertically movable is provided, and magnets are provided on both upper and lower surfaces of the bearing portion, and magnets having the same polarity are provided above and below the mounting portion, facing the respective magnets. A floor suction tool. 3. A suction tool main body having a suction port on a lower surface, a rotating brush housed in the suction tool body facing the suction port, and a bearing for receiving both ends of a rotating shaft of the rotary brush. Forming a mounting portion for vertically mounting the bearing portion, providing a magnet on the upper surface of the bearing portion, and providing a magnet having the same polarity facing the magnet above the mounting portion. Features a floor suction tool. 4. A suction tool main body having a suction port on a lower surface, a rotating brush housed in the suction tool body facing the suction port, and a bearing for receiving both ends of a rotating shaft of the rotary brush. A mounting portion for mounting the bearing portion vertically movable is formed, and both upper and lower surfaces of the bearing portion are magnetized, and magnets having the same polarity are respectively opposed to the upper and lower surfaces of the bearing portion. Floor suction device characterized by being provided in. 5. A suction tool main body having a suction port on a lower surface, a rotating brush housed in the suction tool body facing the suction port, and a bearing for receiving both ends of a rotating shaft of the rotary brush. A mounting portion for mounting the bearing portion vertically movable is formed, and an upper surface of the bearing portion is magnetized, and a magnet having the same polarity is provided above the mounting portion facing the upper surface of the bearing portion. A floor suction tool characterized by the above-mentioned. 6. The floor suction tool according to claim 1, wherein a side surface of the bearing portion that contacts the side wall of the mounting portion is formed in an arc shape.