JP3540552B2 - Vacuum cleaner suction tool - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a suction device of a vacuum cleaner, and more particularly to a suction device of a vacuum cleaner having an opening for blowing air to a floor.
[0002]
[Prior art]
BACKGROUND ART Conventionally, there is a method in which a suction airflow from a suction tool collides with a floor surface to scrape up dust in order to improve dust suction performance.
[0003]
FIGS. 17, 18, 19, and 20 are views showing examples of a conventional vacuum cleaner suction tool disclosed in, for example, Japanese Patent Application Laid-Open No. 54-158066. FIG. 17 is a cross-sectional view. 19 is a front view, FIG. 19 is a bottom view, and FIG. 20 is a perspective view. In the drawing, reference numeral 1 denotes a suction tool main body, and a communication pipe 2 connected to a cleaner main body 11 via a hose 12 and a pipe 13 is rotatably attached to a stopper 3. Reference numeral 4 denotes a sled portion provided in front of the suction tool main body 1 and has a suction port 5 at the center thereof, and a long groove suction passage 6 is provided on the left and right of the suction port 5. Reference numeral 7 denotes a slit-shaped ventilation passage that communicates with the front of the suction port 5 and the suction passage 6, and is provided independently in the longitudinal direction of the suction tool main body 1. Further, the ventilation passage 7 has a larger hole area as it reaches both ends in the longitudinal direction of the central portion of the suction port 5.
[0004]
Reference numeral 8 denotes a bumper of a cushioning material provided on the outer periphery of the suction tool main body 1, reference numeral 9 denotes a roller provided on the left and right on the bottom surface of the suction tool main body 1, reference numeral 10 denotes a flocking provided behind the suction port 4, and at the time of cleaning, The back surface of the suction tool main body 1 is prevented from being in contact with the floor surface and being scratched.
[0005]
When the floor surface is cleaned by the above configuration, the airflows flowing from the lower surface of the sled portion 4 and the slit-shaped ventilation path 7 join and collide with a deep portion of the floor surface. Since the dust is lifted and sucked by the airflow, the cleaning ability can be improved.
[0006]
[Problems to be solved by the invention]
In the conventional suction device for a vacuum cleaner configured as described above, the suction air entering the suction device main body 1 is made to collide with the floor surface by the ventilation path 7 formed in the suction device main body 1 to remove dust on the floor surface. It is trying to improve the dust-absorbing performance by scraping up with the collision wind. When the floor surface is carpet, it is necessary to bring the slit-shaped ventilation path 7 close to the carpet hair in order to scrape out the dust that has entered the interior of the carpet hair.
[0007]
However, when the ventilation passage 7 is formed in the suction device main body 1 as a case member as in the related art, the suction device main body 1 is a rigid body, so when the outlet of the ventilation passage 7 is brought close to the carpet, depending on the type of carpet Since the bristles have different lengths, the openings of the ventilation holes 7 may be closed, and there is a problem that sufficient scraping performance cannot be obtained.
[0008]
The present invention has been made to solve the above-described problems, and can improve the effect of scraping dust inside the carpet in the ventilation path 7 in which the collision wind is generated so that the ventilation path 7 can be made closer to the carpet. In addition, the present invention is intended to always obtain a stable scraping performance even for carpets of various hair lengths without blocking the ventilation passage.
[0009]
[Means for Solving the Problems]
For an electric vacuum cleaner suction tool according to the present invention, a suction tool main body connected to the cleaner body through the communicating pipe, and the suction port communicating with said communicating pipe is formed on the bottom front of the suction tool body, wherein A bumper made of a soft material provided on the outer periphery of the suction tool main body, and formed of a soft material and provided integrally with the bumper, hanging down from the bumper to a cleaning surface side, providing an air intake port at an upper portion, and providing a cleaning surface side And a ventilation passage provided with a discharge port, a skirt portion hanging down at a position in contact with a cleaning surface is provided on a wall surface of the ventilation passage on the bumper side, and cleaning is performed when the suction tool body is moved forward and backward. The skirt portion is bent in the opposite direction to the direction of travel of the suction tool main body due to surface resistance, and the ventilation passage formed integrally with the skirt portion is also bent in the same direction, thereby responding to the movement of the skirt portion. And the spout fluctuates Is shall.
[0010]
Further, a rib is provided between the skirt portion and the ejection port.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
1 is a side sectional view showing the internal structure of a vacuum cleaner suction tool according to Embodiment 1 of the present invention, FIG. 2 is a top view, FIG. 3 is a front view, and FIG. 4 is a bottom view. In the figure, the same or corresponding parts as in the conventional example are denoted by the same reference numerals, and description thereof will be omitted. In addition, it is assumed that the communication pipe 2 connected to the cleaner main body 11 via the hose 12 and the pipe 13 is provided substantially at the center of the suction tool main body 1 as in the conventional example.
[0013]
In the drawing, 14 is an upper case of the suction tool main body 1, and 15 is a lower case. Reference numeral 16 denotes a partition wall provided at the center in the longitudinal direction inside the suction tool main body 1, and a suction chamber 17 is provided at the front. The suction port 4 is formed in the suction chamber 17 of the lower case 15. Reference numeral 18 denotes a bumper arranged on the outer peripheral portion of the suction tool main body 1, which is formed of a soft material so as not to be damaged when hitting a wall, furniture or the like. Reference numeral 19 denotes an air passage formed of a soft material, which is formed integrally with the bumper 18. Reference numeral 19a denotes an air inlet formed on the upper surface side of the suction tool main body 1 of the ventilation passage 19, and 19b denotes a spout provided on the cleaning surface side. Reference numeral 20 denotes a raised cloth roller in which a raised cloth is adhered to the outer periphery, and is disposed behind the suction port 5. The bearing of the raising cloth roller 20-has a built-in torque limiter for restricting rotation, and in the case of a plate floor, rotates more slowly than the moving speed of the suction tool main body 1 so that a wiping function can be obtained.
[0014]
As shown in FIGS. 1, 2 and 3, a plurality of ventilation passages 19 are provided, and are formed at the front side of the suction tool main body 1 perpendicular to the floor surface. The cross-sectional shape of the ventilation path 19 may be any shape such as a circle, a square, and a long hole. In addition, the ventilation paths of each ventilation path 19 may have an independent shape or a shape in which a plurality of ventilation paths are united.
[0015]
With the suction operation of the vacuum cleaner body, the surrounding air is sucked together with the dust on the floor from the suction port 5 of the suction tool body 1. At that time, the surrounding air is also sucked from the ventilation passage 19 on the front surface of the suction tool main body 1, and this suction air is guided to the ventilation passage 19 and collides with the floor surface. Flow into
[0016]
However, in order to sufficiently bring out the performance of the dust scraping function, it is necessary to bring the opening on the floor side of the ventilation path 19 closer to the floor with dust. Therefore, a description will be given with reference to FIGS. FIG. 5 is a view showing a state in which the suction tool main body 1 is placed on a carpet, FIG. 6 is a view showing a state of a ventilation path 19 when the suction tool main body 1 is advanced, and FIG. It is a figure which shows the state of the ventilation path 19 at the time of making it.
[0017]
As shown in the drawing, according to the first embodiment, since the ventilation passage 19 is formed of a soft material, when the suction tool main body 1 is moved forward and backward, the ventilation path 19 is formed by the resistance of the carpet. 1 is bent in a direction opposite to the traveling direction. Due to this deformation, the floor portion of the ventilation path 19 on the floor surface comes up on the carpet hair, so that the opening of the ventilation path 19 can be prevented from being blocked if the suction tool body 1 is operated back and forth. Therefore, the suction air that has passed through the ventilation path 19 can always collide with dust in the carpet hair and be lifted up.
[0018]
Embodiment 2 FIG.
8 is a sectional view showing a vacuum cleaner suction tool according to Embodiment 2 of the present invention, FIG. 9 is a front view, and FIG. 10 is a bottom view. In the figure, the same or corresponding components as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted. Reference numeral 21 denotes a skirt portion in which the side wall surface of the bumper 18 of the ventilation passage 19 is hung so as to substantially contact the floor surface.
[0019]
The skirt portion 21 is configured to maintain a negative pressure at the suction port 5 with a certain gap between the floor surface and the suction tool main body 1 on a plate-like floor surface. On the carpet, it is configured to penetrate into the hair of the carpet.
[0020]
FIG. 11 is a view showing a state where the suction tool main body 1 is placed on a carpet, FIG. 12 is a view showing a state where the suction tool main body 1 is moved forward, and FIG. 13 is a view showing a state where the suction tool main body 1 is moved backward. It is. According to the second embodiment, when the suction tool main body 1 is moved forward and backward on the carpet, the skirt portion 21 is bent in a direction opposite to the traveling direction of the suction tool main body 1 due to the resistance of the carpet. The ventilating passage 19 which is formed in a uniform manner is also deformed in the same direction. That is, the traveling direction of the suction tool main body 1 is detected by the skirt portion 21, and the ventilation path 19 is deformed. Accordingly, the floor-side opening of the ventilation path 19 can be maintained without the blockage of the ventilation path 19 by the collision wind.
[0021]
Embodiment 3 FIG.
FIG. 14 is a view showing the internal structure of a vacuum cleaner suction tool according to Embodiment 3 of the present invention, FIG. 15 is a view showing a state where the suction tool body is advanced on a carpet, and FIG. 16 is a bottom view. . In the figure, the same components as those of the first and second embodiments are denoted by the same reference numerals, and description thereof is omitted. Reference numeral 22 denotes a reinforcing rib connecting the skirt portion 21 and the ventilation path 19.
[0022]
According to the third embodiment, the deformation of the skirt portion 21 caused by the forward and backward movements of the suction tool main body 1 on the carpet can be reliably transmitted to the ventilation path 19 by the reinforcing ribs 22.
[0023]
【The invention's effect】
As described above, even if the floor-side opening becomes buried in the carpet, the ventilation path is deformed by the resistance of the carpet and the floor-side opening is formed in the ventilation path that obtains the impinging wind on the floor. Is always on the carpet and the air passage is secured, so that the performance of scraping the floor surface by the wind passing through the air passage can be maintained.
[0024]
Further, since the traveling direction of the suction tool is detected by the suspended skirt portion, and the ventilation path is deformed, it is possible to prevent the floor-side mouth from being closed by the carpet.
[0025]
In addition, since the interlocking property between the skirt portion and the ventilation path is improved by the reinforcing rib, the air path at the mouth of the ventilation path can be reliably secured.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an internal structure of a vacuum cleaner suction tool according to Embodiment 1 of the present invention.
FIG. 2 is a top view of the suction tool for a vacuum cleaner according to the first embodiment.
FIG. 3 is a front view of the suction tool for a vacuum cleaner according to Embodiment 1.
4 is a bottom view of the vacuum cleaner suction tool according to Embodiment 1. FIG.
FIG. 5 is a diagram showing a state of the suction device for a vacuum cleaner according to Embodiment 1 on a carpet.
FIG. 6 is a diagram showing a state in which the suction device for a vacuum cleaner according to Embodiment 1 is advanced on a carpet.
FIG. 7 is a diagram showing a state in which the suction device for a vacuum cleaner according to the first embodiment moves backward on a carpet.
FIG. 8 is a cross-sectional view showing an internal structure of a vacuum cleaner suction tool according to Embodiment 2 of the present invention.
FIG. 9 is a front view of the vacuum cleaner suction tool according to the second embodiment.
FIG. 10 is a bottom view of the vacuum cleaner suction tool according to the second embodiment.
FIG. 11 is a diagram showing a state on a carpet of a vacuum cleaner suction tool according to Embodiment 2.
FIG. 12 is a diagram showing a state in which the suction device for a vacuum cleaner according to Embodiment 2 is advanced on a carpet.
FIG. 13 is a diagram showing a state in which the suction device for a vacuum cleaner according to the second embodiment moves backward on a carpet.
FIG. 14 is a cross-sectional view showing an internal structure of a vacuum cleaner suction tool according to Embodiment 3 of the present invention.
FIG. 15 is a diagram showing a state in which the suction device for a vacuum cleaner according to Embodiment 3 is advanced on a carpet.
FIG. 16 is a bottom view of the suction tool for a vacuum cleaner according to Embodiment 3.
FIG. 17 is a side sectional view showing the internal structure of a conventional vacuum cleaner suction tool.
FIG. 18 is a front view of a conventional vacuum cleaner suction tool.
FIG. 19 is a bottom view of a conventional suction tool for a vacuum cleaner.
FIG. 20 is a perspective view of a conventional vacuum cleaner suction tool.
[Explanation of symbols]
1 suction tool body, 2 communication pipe, 5 suction port, 6 suction passage, 7 ventilation path,
8 bumper, 11 cleaner body, 12 hose, 13 pipe,
18 bumper, 19 ventilation path, 21 skirt part, 22 reinforcing rib.

Claims (2)

A suction tool body which is connected with the cleaner body via the communicating pipe, and the suction port communicating with said communicating pipe is formed on the bottom front of the suction tool body, from the soft material provided on the outer periphery of the suction tool body And a ventilation path formed of a soft material, provided integrally with the bumper, hanging down from the bumper to the cleaning surface side, providing an air intake port at an upper portion, and providing an ejection port at the cleaning surface side, On the wall of the ventilation path on the bumper side , a skirt portion is provided which is hung at a position so as to come into contact with a cleaning surface. The air outlet is bent in the opposite direction to the traveling direction, and the air passage formed integrally with the skirt is also bent in the same direction, so that the ejection port fluctuates according to the movement of the skirt. Vacuum cleaner suction . The suction tool for a vacuum cleaner according to claim 1, wherein a rib is provided between the skirt portion and the spout.

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