JP2003325396A - Floor brush for vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor brush for a vacuum cleaner which can prevent dust left as it is not sucked when pulling the floor brush and which can prevent slow-down of operation of the floor brush by a seal material. <P>SOLUTION: This floor brush for a vacuum cleaner is provided with a laterally long intake port part 15 formed in a bottom surface 5a, the seal material 20 made of an elastic material and provided in the bottom surface 5b along the longitudinal direction of the intake port part 15, and a communication groove 31 for communicating the bottom surface part 5b on the opposite side of the intake port part 15 in relation to the seal material 20 with the inside surface in of the intake port part 15 in the longitudinal direction. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved floor brush for an electric vacuum cleaner.

[0002]

2. Description of the Related Art FIG. 9 is a bottom view of a conventional floor brush used in an electric vacuum cleaner, and FIG. 10 is a side view AA of FIG. In the figure, 1 is a floor brush, 2 is an upper case, 3 is a suction port, 4 is a suction passage, 5 is a lower case facing the floor surface 10, and the material is ABS or PP. 6
Is a bumper sandwiched between the upper case and the lower case, and 8 is an elbow that is connected to the pipe 12 and is rotatable left and right.
Reference numeral 9 denotes a coupling which is sandwiched between the upper case 2 and the lower case 6 and is rotatable up and down. A front wheel 17 is rotatably attached to the lower case 6. 18 is lower case 6
The rear wheel is rotatably attached to. Front wheel 17
With the rear wheels 18, the lower case 6 is provided with a gap of about 1.0 mm to about 4 mm with respect to the floor surface 10, whereby the floor brush 1 can be moved back and forth.

FIG. 11 is an assembly drawing of a sealing material. The sealing material 20 is made of an elastic material such as soft vinyl chloride or rubber, and may have a protrusion 28 or a protrusion of a groove or an infinite number of conical protrusions on its longitudinal surface. Reference numeral 21 denotes a holder having a substantially U-shaped cross section for holding the sealing material 20, which is made of a material such as hard PVC or plastic such as ABS and is extruded or injection molded. The sealing material 20 is inserted into the holder 21 and assembled. In some cases, the sealing material 20 and the sealing material 20 are double-molded. The seal member 20 assembled in this manner is mounted and held on the lower case 5 by the claw portion 11 of the lower case 5.

Next, the operation will be described with reference to FIGS. 9 and 10. The seal member 20 assembled as shown in FIG. 11 is mounted and held on the lower case 5 by the mat part 11 of the lower case 5, and is provided so as to substantially contact the floor surface 10. As described above, the lower case 6 and the floor surface 10 have about 1.
The space 30 is a sealing material 2 in a gap of about 0 mm to about 4 mm.
A seal member 20 is formed behind the suction passage 4 at the boundary of 0. Further, the sealing material 20 is generally located in the rear of the vicinity of the suction port 3 and the suction passage 4 (downward in FIG. 9), and for the purpose of increasing the vacuum degree for suction, dust does not go backward. There is a purpose to do so.

In FIG. 10, if a hose (not shown) connected to the main body of the electric vacuum cleaner is connected to the pipe 12 and the switch is turned on, dust on the floor is sucked together with air from the suction port 3 and the coupling 9 , Elbow 8 and pipe 1
2, carried from the hose (not shown) to the vacuum cleaner body,
In the main body of the vacuum cleaner, dust is removed by a paper pack or the like (not shown), and only clean air is discharged from the main body of the vacuum cleaner.

[0006]

Generally, when cleaning the floor surface, the floor brush 1 moves back and forth on the floor surface 10 (zigzag cleaning).
While sucking dust and the like repeatedly, the conventional floor brush for the electric vacuum cleaner as described above, when the suction force of the electric vacuum cleaner body decreases when dust is accumulated in the paper pack or the like,
If dust collects on the paper pack, the suction force of the vacuum cleaner body will decrease.
When it is operated in the direction, that is, when the floor brush 1 is pulled, the sealing material 20 is provided so as to be almost in contact with the floor surface 10. Therefore, the sealing material 20 blocks the dust, and the dust 32 is in front of the rake. There was a problem that it was pulled out and left behind. Further, the bristle brushes 35 which are continuous in one row as shown in FIG. 12 have the same problem.

Since the suction force of the main body of the vacuum cleaner does not decrease when dust is not accumulated in the paper pack or the like, the sealing material 20 is turned over to the suction port 3 side and a gap is formed between the sealing material 20 and the floor surface 10. Sometimes it doesn't matter.

Further, as shown in FIG. 13, the sealing material 20 is a carpet 25 having a long bristle and a lower case 6 and a carpet 25.
It is sandwiched between and, and it becomes horizontal and the contact area increases (friction force)
There is a problem that the operation force becomes large and the operation of the floor brush 1 becomes heavy. Further, in the case where the longitudinal surface of the sealing material 20 is provided with a protrusion or a protrusion of a groove or an infinite number of conical protrusions, there is a problem that the operation of the floor brush 1 becomes further heavy. In addition, when the sealing material 20 is made of soft vinyl chloride or rubber and the holder 21 is made of plastic such as hard vinyl chloride, it is not easy to disassemble for separate collection at the time of disposal.

The present invention has been made in order to solve the above problems, and prevents dust from being pulled out and left behind when the floor brush is pulled, and the operation of the floor brush is prevented. It is an object of the present invention to provide a floor brush for an electric vacuum cleaner, which can prevent the sealing material from becoming heavy, and can facilitate separate collection at the time of disposal.

[0010]

A floor brush for an electric vacuum cleaner according to the present invention has a horizontally long suction port formed on the bottom surface and an elastic member provided on the bottom surface along the longitudinal direction of the suction port section. A floor brush for a vacuum cleaner having a sealing material made of a material, wherein a bottom surface portion opposite to the suction opening portion with respect to the sealing material communicates with an inner side surface in the longitudinal direction of the suction opening portion. It has a groove.

Further, a laterally long suction port portion formed on the bottom surface, a step portion having a recessed bottom surface along the longitudinal direction of the suction port portion, and a step portion provided along the suction port portion side of the step portion. And a sealing material made of an elastic material, and when the sealing material is bent laterally during cleaning of the carpet, the bent sealing material is stored in the step portion.

Further, the stepped portion on the side opposite to the suction port portion with respect to the sealing material is provided with a communication groove for communicating with the inner surface of the suction port portion in the longitudinal direction.

Further, the sealing material is provided with a plurality of suction holes.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. 1 is a bottom view of a floor brush showing the first embodiment of the present invention, and FIG. 2 is a BB sectional view of the floor brush showing the first embodiment of the present invention. Figure 1,
In FIG. 2, 1 is a floor brush, 2 is an upper case, and 5 is a lower case that faces the floor surface 10, and is made of ABS, PP or the like. Reference numeral 3 denotes a central intake port provided in the lower case 5, and 4 denotes intake passages provided on both sides of the intake port 3. The suction port 3 and the suction passage 4 form a substantially horizontally long suction port portion 15. Reference numeral 5a denotes a bottom surface of the lower case, and 5b denotes a bottom surface portion of the bottom surface 5a along the longitudinal direction of the suction port portion 15.

Reference numeral 6 is a bumper sandwiched between an upper case and a lower case, and 8 is an elbow which is connected to a pipe 12 and is rotatable left and right. Reference numeral 9 denotes a coupling which is sandwiched between the upper case 2 and the lower case 6 and is rotatable up and down. A front wheel 17 is rotatably attached to the lower case 6. 1
A rear wheel 8 is rotatably attached to the lower case 6. The front case 17 and the rear wheel 18 cause the lower case 6 to move to the floor surface 1.
There is a gap of about 1.0 mm to about 4 mm with respect to 0.

Reference numeral 20 denotes a sealing material made of an elastic material, which is provided on the bottom surface 5b along the longitudinal direction of the suction port portion 15, and is made of soft vinyl chloride or rubber, and has a projection or a groove or a myriad of cones on the longitudinal surface. Some are provided with protrusions. Reference numeral 31 is a communication groove provided so that the bottom surface portion 5b on the side opposite to the suction port portion 15 with respect to the sealing material 20 communicates with the inner surface of the suction port portion 15 in the longitudinal direction. That is, as shown in FIG. 2, the communication groove 31 includes a space surrounded by the suction passage 4, the floor surface 10 and the sealing material 20 of the lower case 5, the floor surface 10, the bottom surface portion 5b of the lower case 5 and the sealing material. It communicates with a space 30 surrounded by 20.

Next, the operation will be described with reference to FIG. When a hose (not shown) connected to the main body of the electric vacuum cleaner is connected to the pipe 12 and the switch is turned on, dust on the floor surface 10 is sucked together with air from the suction passage 4 and the suction port 3 of the floor brush 1. , Coupling 9, pipe elbow 8, pipe 12,
The hose is carried to the main body of the electric vacuum cleaner, dust is removed by a paper pack (not shown) in the main body of the electric vacuum cleaner, and only clean air is discharged from the main body of the electric vacuum cleaner. At this time, since the sealing material 20 is provided so as to be substantially in contact with the floor surface 10, the degree of vacuum for suction is increased and dust is prevented from going backward.

Further, when dust is sucked while repeating the front-back movement of the floor brush 1 on the floor surface 10 (zigzag cleaning), if dust collects in the paper pack or the like, the suction force of the vacuum cleaner body is lowered. Since the sealing material 20 is in contact with the floor surface 10 almost perpendicularly, when the floor brush 1 is pulled, the sealing material 20 blocks the dust and pulls the dust toward the front like a rake, and is left behind. However, the dust and the like blocked by the communication groove 31 flows from the communication port 31 to the suction passage 4 and is sucked into the suction port 3 as shown by the arrow.

As described above, when the floor brush 1 is pulled, it is possible to prevent dust from being pulled and left behind. Further, if a driver or the like is inserted into the continuous pain groove 31, the holder 21 and the sealing material 20 can be easily removed from the claw portion 11.

In this embodiment, the seal member 20 is made of an elastic material, but it is shown in FIG.
A continuous bristle brush in a row may be used, and a similar effect can be obtained.

Embodiment 2. 3 is a bottom view of the floor brush showing the second embodiment of the present invention, FIG. 4 is a CC sectional view of the floor brush showing the second embodiment of the present invention, and FIG. 5 is a floor showing the second embodiment of the present invention. FIG. 6 is a perspective view of the sealing material, and FIG. 6 is an operation explanatory view of the brush. 3, 4, and 5, the same parts as those in FIGS. 32 is a bottom surface 5b along the longitudinal direction of the suction port portion 15
The seal member 20 is provided along the suction port 15 side of the step 32. As shown in FIGS. 3 and 4, the length of the step portion 32 is substantially the same as that of the sealing material 20, and the depth h from the bottom surface 5a of the step portion 32 is h ≧ t (t is the thickness of the sealing material 20. ), The length L of the step portion 32 in the front-rear direction is L
≧ H (H is the distance to the floor surface of the sealing material 20).

Further, in FIG. 6, 29 is a sealing material 20.
It is a communication hole provided in.

In this construction, when the floor brush 1 is pushed forward during cleaning of the carpet 25, the sealing material 20 is sandwiched between the long carpet 25 and the lower case 6 and is bent horizontally. Also, the length of the step portion 32 is almost the same as that of the sealing material 20, the depth h of the step portion 32 is deeper than the thickness t of the sealing material 20, and the length L of the step portion 32 in the front-rear direction is Since the distance H to the floor surface of the sealing material 20 is made longer, the sealing material 20 is stored in the step portion 32.

When the floor brush 1 sucks dust and the like on the floor surface 10 while repeating forward and backward movements, the suction force is reduced. Therefore, when the floor brush 1 is pulled, the sealing material 20
Clogs the dust and pulls it toward the front like a rake and is likely to be left behind, but the dust clogged by the communication hole 29 flows into the suction passage 4 and is sucked into the suction port 3. At this time, the air sucked into the communication hole 29 by the step portion 32 becomes a smoke from below, and the dust can be sucked in without significantly deteriorating the sealing property. Also, the communication hole 2
9 reduces the bending force of the root portion of the sealing material 20 and reduces the repulsive force against the carpet.

As described above, when cleaning the carpet 25, it is possible to prevent the operation of the floor brush from becoming heavy due to friction with the sealing material 20, and when the floor brush 1 is pulled, dust is kept in front. It is possible to prevent it from being pulled and left behind.

Embodiment 3. 7 is a bottom view of the floor brush showing the third embodiment of the present invention, and FIG. 8 is a DD sectional view of the floor brush showing the third embodiment of the present invention. 7 and 8, the same parts as those of FIGS. 1 and 2 of the second embodiment and FIG. 4 of the second embodiment are denoted by the same reference numerals and the description thereof will be omitted. This embodiment has the configuration shown in the second embodiment, and the communication hole 29 is not provided in the seal 20, and the step portion 32 on the side opposite to the suction port portion 15 with respect to the sealing material 20 has the suction port portion 15 Two communication grooves 31 are provided so as to communicate with the inner surface in the longitudinal direction. That is, as shown in FIG. 8, the communication groove 31 includes a space surrounded by the suction passage 4, the floor surface 10 and the sealing material 20 of the lower case 5, the floor surface 10, the step portion 32 of the lower case 5 and the sealing material. It communicates with a space 30 surrounded by 20.

In this structure, when the floor brush 1 is pulled, the sealing material 20 blocks the dust and pulls the dust toward the front like a rake, and is likely to be left behind. Due to the provision of the above, the dammed dust or the like temporarily flows through the step portion 32 toward the communication groove 31 and then flows from the communication groove 31 into the suction passage 4 and is sucked into the suction port 3 as indicated by the arrow. At this time, the step portion 32 also serves as a suction passage.

Even when the floor brush 1 is pushed forward when the carpet 25 is cleaned, even if the sealing material 20 is caught between the long carpet 25 and the lower case 6 and becomes bent horizontally. The sealing material 20 is stored in the step portion 32.

As described above, dust can be collected in the communication groove 31 more effectively, and it is possible to more efficiently prevent dust from being left behind when the floor brush 1 is pulled. can do. Also, 25 rugs
It is possible to prevent the operation of the floor brush from becoming heavy due to friction with the sealing material 20 at the time of cleaning.

In this embodiment, the sealing material 20 is made of an elastic material, but the same effect can be obtained with a bristle brush that is continuous in one row.

[0031]

As described above, according to the present invention, a horizontally long inlet port formed on the bottom surface and a sealing material made of an elastic material provided on the bottom portion along the longitudinal direction of the inlet port section. In the floor brush for an electric vacuum cleaner having the above, since the bottom surface portion on the side opposite to the suction port portion with respect to the sealing material is provided with a communication groove configured to communicate with the inner surface in the longitudinal direction of the suction port portion. It is possible to prevent dust from being pulled toward you when the floor brush is pulled and left behind.

Further, a laterally long suction port formed on the bottom surface, a step portion having a recessed bottom surface along the longitudinal direction of the suction port portion, and a step portion provided along the suction port portion side of the step portion. And a sealing material made of an elastic material, and when the sealing material is folded laterally during cleaning of the carpet, the folded sealing material is stored in the step portion.
It is possible to prevent the operation of the floor brush from becoming heavy with the sealing material.

Further, since the step portion on the side opposite to the suction port portion with respect to the sealing member is provided with the communication groove for communicating with the inner surface of the suction port portion in the longitudinal direction, the dust is more effective. The dust can be collected in the communication groove, and when the floor brush is pulled, it is possible to prevent dust from being pulled and left behind.

Further, since the sealing material is provided with a plurality of suction holes, it is possible to prevent dust from being drawn and left behind when the floor brush is pulled. In addition, it is possible to facilitate the separate collection of the sealing material at the time of disposal.

[Brief description of drawings]

FIG. 1 is a bottom view of a floor brush for an electric vacuum cleaner showing a first embodiment of the present invention.

FIG. 2 is a BB cross-sectional view of the floor brush for the electric vacuum cleaner showing the first embodiment of the present invention.

FIG. 3 is a bottom view of the floor brush for the electric vacuum cleaner according to the second embodiment of the present invention.

FIG. 4 is a CC cross-sectional view of a floor brush for an electric vacuum cleaner showing a second embodiment of the present invention.

FIG. 5 is an operation explanatory diagram of the floor brush for the electric vacuum cleaner according to the second embodiment of the present invention.

FIG. 6 is a perspective view of a sealing material of a floor brush for an electric vacuum cleaner showing a second embodiment of the present invention.

FIG. 7 is a bottom view of the floor brush for the electric vacuum cleaner according to the third embodiment of the present invention.

FIG. 8 is a DD cross-sectional view of a floor brush for an electric vacuum cleaner showing a third embodiment of the present invention.

FIG. 9 is a bottom view of a conventional floor brush for an electric vacuum cleaner.

10 is a sectional view taken along the line AA of FIG.

FIG. 11 is an assembly diagram of a sealing material.

FIG. 12 is a perspective view of a bristle brush.

FIG. 13 is an operation explanatory view of a conventional floor brush for an electric vacuum cleaner.

[Explanation of symbols]

1 floor brush, 2 upper case, 3 suction port, 4 suction passage, 5 lower case, 5a bottom surface, 5b bottom surface part, 9 coupling, 10 floor surface, 15 suction port part, 17 front wheel, 18 rear wheel, 20 seal Material, 21 holders, 2
5 rugs, 29 communication holes, 30 spaces, 31 communication grooves, 32 steps.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Miwa Ito             1728 Omaeda, Hanazono-cho, Osato-gun, Saitama 1728               Within Mitsubishi Electric Home Equipment Co., Ltd. (72) Inventor Takanobu Ueoka             1728 Omaeda, Hanazono-cho, Osato-gun, Saitama 1728               Within Mitsubishi Electric Home Equipment Co., Ltd. (72) Inventor Takenori Sekiguchi             1728 Omaeda, Hanazono-cho, Osato-gun, Saitama 1728               Within Mitsubishi Electric Home Equipment Co., Ltd. F term (reference) 3B061 AA06 AA41 AA57 AB03 AB09

Claims (4)

[Claims] 1. A floor brush for an electric vacuum cleaner, comprising a horizontally long suction opening formed on a bottom surface and a sealing material made of an elastic material provided on a bottom surface along a longitudinal direction of the suction opening. A floor brush for an electric vacuum cleaner, comprising: a communication groove having a bottom surface portion opposite to the suction port portion with respect to the sealing material so as to communicate with an inner side surface in the longitudinal direction of the suction port portion. 2. A laterally long suction port formed on a bottom surface, a stepped portion having a recessed bottom surface along the longitudinal direction of the suction port, and a stepped portion provided along the suction port side of the stepped portion. And a sealing member made of an elastic material, and when the sealing member is bent laterally during cleaning with a carpet, the bent sealing member is stored in the step portion. Floor brush for vacuum cleaner. 3. The communication groove according to claim 2, wherein a step portion on the side opposite to the suction port portion with respect to the sealing member is provided with a communication groove configured to communicate with an inner surface of the suction port portion in the longitudinal direction. Floor brush for electric vacuum cleaner. 4. The floor brush for an electric vacuum cleaner according to claim 2, wherein the sealing material is provided with a plurality of suction holes.