JPH11346966A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lessen the operating force on a carpet while keeping the suction performance on a wooden floor so as to improve flexibility by dividing an air guide port for guiding an air current in the tangential direction of a suction passage forming a suction opening of the lower surface into plural parts, and varying the open area of the air guide port at need in the suction body of a vacuum cleaner. SOLUTION: In cleaning a wooden floor, sweeping bristles 114 abut against the wooden floor surface, so that a passage opening part 501 and a shutter opening part 503 are shifted from each other to close a suction air passage 109. As a result, air does not flow from an air guide port 111 to the suction air passage 109 so that the static pressure in the suction air passage 109 is increased to obtain a proper dust collecting performance. On the other hand, in cleaning a carpet, a wheel 106 sinks in the flock of the carpet and the sweeping bristles 114 are raised so that the passage opening part 501 and the shutter opening part 503 overlap each other. As a result, an upward stream flows from the air guide port 111 into the suction air passage 109, and simultaneously, a downward stream flows from an air guide groove on the wheel side so that a swirl current is generated by shearing of the above so as to improve dust collecting performance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vacuum cleaner,
In particular, the present invention relates to a vacuum cleaner having a mouthpiece having a floor brush.

[0002]

2. Description of the Related Art A suction body used in a conventional vacuum cleaner is provided with a suction passage on the lower surface of the suction body in the left-right direction of the suction body so as to communicate the suction port with the side of the suction body. Dust was collected by blowing the wind.

[0003]

However, in this type of mouthpiece, a switching lever is provided in order to achieve both suction performance on a wooden floor and operability on a carpet, so that brushes can appear and disappear, and wind (airflow) can be reduced. The opening hole is opened and closed, and the switching lever must be operated every time the cleaning surface changes, and the problem that the operability is high and cannot be applied to the vacuum cleaner with high output (suction power) was there.

[0004] Therefore, an object of the present invention is to reduce the operating force on a carpet while maintaining the suction performance on a wooden floor, so that the applicable range of the suction port can be widely used regardless of the output level of the vacuum cleaner main body. Another object of the present invention is to provide an easy-to-handle vacuum cleaner without a switching lever.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is characterized in that a suction port is provided on the lower surface and a substantially semi-circular groove communicates with the suction port from the side. A suction body formed by arranging a weighing case in a sita case having a suction flow path formed in a casing; a casing rotatable vertically with respect to the suction body, and having a suction passage; and a rear portion of the casing. A suction joint disposed in the vicinity of a side of the suction main body of the suction flow path, above the suction flow path, and a wind guide port for guiding an airflow from a rearward in a substantially tangential direction of the suction flow path, A bottom surface of the suction passage on the side lower surface of the suction main body, a bottom surface of the suction passage on the side surface of the suction main body, and a wind guide groove for guiding an airflow from diagonally forward to a lower portion of the suction flow path; A suction port, and the air guide port and the A suction member formed with an air intake passage for communicating the air port, a wiping member disposed on the base member so as to abut on a floor surface and a base member movably disposed on the lower surface of the shita case; A spring member for urging the base member downward, and a flow passage opening in the vicinity of the base member and in the middle of the intake flow passage, wherein the flow passage opening of the base member opposes the flow passage opening. The shutter portion having a portion is integrally formed, and the opening of the shutter portion is configured such that when the base member is at an upper portion, the opening of the flow passage opening and the opening of the shutter portion overlap and the direction in which the intake passage is opened. Becomes

Further, when the base member is at a lower portion, the opening of the flow passage and the opening of the shutter portion are shifted so as to operate in a direction in which the intake flow passage is closed. According to the output of the vacuum cleaner, by dividing the air guide port into a plurality of pieces at the above-mentioned air guide port, and forming the air guide port by opening one or more places by exchanging a die frame when forming the air guide port, In addition, it is possible to select a suction port that provides optimum suction and operability.

That is, according to this configuration, the operability on the carpet is reduced while the dust collecting performance on the wooden floor and the carpet is maintained, and the suction adaptation of the vacuum cleaner having a different suction force is performed by the air inlet of the suction port. Since the opening area can be appropriately selected, optimal operability is possible.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a bottom view of a suction main body according to one embodiment of the present invention, FIG. 2 is a top view of the suction main body, FIG. 3 is a top view of FIG. FIG. 5 is a cross-sectional view taken along a line BB in FIG. 1.

In FIGS. 1 to 5, the mouthpiece main body 101 comprises:
It is divided into upper and lower parts at the position of the approximate center height, and forms the outer case.
2 is formed by the upper case 2 and the upper case 201.

An impact absorbing bumper 103 for maintaining airtightness and preventing damage to furniture and the like is attached to an outer periphery of a position where the case 102 and the case 201 come into contact with each other.

A suction joint 105, which is rotatable up and down, is connected to the rear end of the suction main body 101. In the shita case 102, while moving the suction body 101 in the front-back direction,
A pair of front wheels 106 and a pair of rear wheels 107 are provided so as to keep a constant distance between the lower surface of the suction main body 101 and the cleaning surface.

A suction port 108 is formed substantially in the center of the case 102, and a suction channel 109 having a substantially semicircular cross section is formed on the left and right sides thereof.

Further, the suction body 101 of the case 102
Has a suction opening 115 on the side surface, and near both sides,
Air guide groove 110 and air guide port 111 communicating with suction channel 109
Are formed.

A pressure control plate 11 is provided in front of the suction passage 109.
2 is provided, and a flexible elastic plate 113 is provided behind the suction channel 109.

The brush storage unit 4 is located behind the shrink case 102.
The brush base 401 is disposed in the brush base 401 such that the brush base 401 can move up and down, and is urged downward by a brush pressing spring 701. Further, a communication groove 116 communicating the suction channel 109 and the brush storage section 402 is provided on the lower surface of the case 102.
Are formed. Further, below the brush base 401, a wiping brush 114 in which soft hairs are continuously woven is provided.

An intake port 202 is formed in the upper case 201. An intake passage 301 that connects the air guide port 111 and the intake port 202 is formed inside the intake main body 101,
A passage opening 501 is formed in the middle of the intake passage 301.

A shutter 502 is formed opposite to the flow path opening 501 and integrally with the brush base 401.
03 is formed. Next, the dust collecting method of the suction body will be described. On the wooden floor, the wiping brush 114 comes into contact with the wooden floor surface as shown in FIG. 6, and the suction main body 101 is moved in the front-rear direction to wipe the wooden floor. Can be.

At this time, as shown in FIG. 6, the relationship between the flow path opening 501 and the shutter opening 503 is such that the openings are shifted and the intake flow path 301 is almost closed. Almost no air flows in the flow path 109, the static pressure in the suction flow path 109 increases, and proper dust collection performance can be obtained.

Further, in this embodiment, the wiping brush 114 has an effect of maintaining the static pressure in the suction channel 109 because the hair is continuously woven. In this embodiment, the wiping brush 114 is used.
Is brush material in which soft hair is woven continuously, but brushed cloth or paper towel may be used.

The operation of the elastic plate 113 will now be described.

When the suction main body 101 is placed on a wooden floor, the elastic plate 113 has a length that wraps from 1 mm to 3 mm with the wooden floor surface. Curving backward.

Then, the suction body 1 continues to move forward and hits a wall.
01 is to be advanced, as shown in FIG.
13 stands upright, and there is a gap between the front lower surface of the mouthpiece main body 101 and the wooden floor, so that dust accumulated on the wall, particularly dust of a rice grain size, can be efficiently sucked.

Next, a method of collecting dust on the carpet will be described. On the carpet, the front wheels 106 and the rear wheels 10
7 sinks, and the wipe 114 rises to the position shown in FIG.

At this time, the relationship between the flow path opening 501 and the shutter opening 503 is as shown in FIG.
The upper stream 504 flows into the suction channel 109 from the outlet, and at the same time, the lower stream 505 flows from the air guide groove 110.

The wind shearing action between the upper flow 504 and the lower flow 505 generates a counterclockwise swirling flow in FIG.

Further, the air guide opening 111 and the air guide groove 110 are provided so as to guide the wind at an angle of 0 ° to 60 ° with respect to the center direction of the suction main body 101, and the suction opening 115 on the side surface is provided.
In the suction flow path 109, the airflow in the left-right direction is not hindered by the airflow from the helical strip, and becomes a swirling swirling flow of the spiral strip and flows into the suction port 108.

As described above, on the carpet, a swirling swirling flow is generated in the suction flow path 109, and thereby the dust is scraped up, so that the dust collecting performance is improved.

Further, since the suction passage 301 is opened, the static pressure in the suction passage 109 is appropriately reduced, and the operability can be reduced. Here, in this embodiment, the air guide opening 111 is divided into two parts, and a frame is placed on a mold so as to be opened at one place or two places, and the area of the air guide opening 111 is selected, and suction of the vacuum cleaner to be used is performed. The suction main body 101 according to the force (output) can be set to the optimum operability. Furthermore, by forming the air guide opening 111 as two or more divisions,
The static pressure on the carpet of the suction body 101 is expanded as a range of choice to find the optimum value in consideration of the dust collection performance and operability,
A more optimal suction main body 101 can be obtained.

After forming the periphery of the air guide opening 111 to be thin, an optimum opening area may be obtained by using a tool such as a knife.

Also, there are various kinds of carpets, and since the airtightness is different, the operability is large even if the optimal opening area is selected in advance and the air opening 111 is opened. The second air guide 11 is provided near the air inlet 111.
1a may be formed. Here, FIG. 11 to FIG. 1 show that a second intake port 202a communicating with the air guide port 111 is provided.
Form as in 3.

As described above, the area of the air introduction port 111 can be changed, and the air introduction port 1 with all the intake ports 202a opened in advance.
An opening is made equal to 11 areas. In addition, the air guide port 11
1 with a certain large opening area,
The same effect can be obtained by changing the opening area of the hologram.

Thus, on the carpet, the intake passage 301
Is opened, the static pressure in the suction channel 109 is reduced, and the operating force can be reduced.

Further, the wiping brush 114 is a brush pressing spring 70.
1 has the effect of scraping dust because it is displaced downward.

Next, the effect of the communication groove 116 will be described. The communication groove 116 is provided so as to communicate the suction flow path 109 and the brush storage section 402. Dust is less likely to accumulate on the wiping brush 114 because the air flows.

As described above, according to this embodiment, since the static pressure in the suction passage 109 is properly maintained on the wooden floor, a sufficient dust collecting performance is ensured, and the wiping effect by the wiping brush 114 is obtained. In addition, on the carpet, the static pressure in the suction flow passage 109 can be reduced to reduce the operating force, and the dust collecting performance can be improved by the effect of the swirling swirling flow. Since no operation is required, a vacuum cleaner with good usability and improved suction performance can be provided.

[0037]

As described above, according to the present invention, operability can be ensured on all types of carpets while ensuring sufficient dust collection performance on wooden floors and improving dust collection performance on carpets. Even if the output of the vacuum cleaner is different, the suction body that can be adapted to the vacuum cleaner can be easily provided, and the adaptability is excellent.
Further, the switching operation due to the difference in the cleaning surface can be made unnecessary, which is excellent in practicality.

[Brief description of the drawings]

FIG. 1 is a bottom view of a mouthpiece main body 101 according to one embodiment of the present invention.

FIG. 2 is a top view of the mouthpiece main body 101. FIG.

FIG. 3 is a top view of the suction main body 101 in a state where a wear case 201 is removed.

FIG. 4 is a sectional view taken along AOA in FIG. 1;

FIG. 5 is a sectional view of the carpet taken along line BB in FIG. 1;

FIG. 6 is a sectional view taken along the line BB on the wooden floor in FIG. 1;

FIG. 7 is a sectional view taken along the line CC in FIG. 1;

FIG. 8 is a sectional view taken along the line AOA in FIG. 1;

FIG. 9 is a sectional view taken along the line AOA in FIG. 1;

FIG. 10 is an exploded perspective view of the mouthpiece main body 101.

FIG. 11 shows a suction port body 101 according to another embodiment of the present invention.
FIG.

FIG. 12 is a bottom view of the mouthpiece main body 101 of FIG.

13 is a case 201 of the mouthpiece main body 101 of FIG.
It is a top view in the state where it was removed.

[Explanation of symbols]

101: Suction body, 102: Sita case, 103: Bumper, 104: Casing, 105: Suction joint, 106
... front wheel, 107 ... rear wheel, 108 ... suction port, 109 ...
Suction channel, 110: air guide groove, 111: air guide port, 112:
Pressure control plate, 113: elastic plate material, 114: wiping brush, 1
Reference numeral 15: suction opening, 116: communication groove portion, 201: wet case, 202: intake port, 111a: air guide port (second), 20
2a: intake port (second), 301: intake channel, 401: brush base, 402: brush storage unit, 501: channel opening,
502: shutter part, 503: shutter opening part, 5
04: upward flow, 505: downward flow, 701: brush pressing spring.

Claims (2)

[Claims] 1. A suction body having a suction case formed on a lower case, a suction case formed on a side of the case having a suction opening formed to communicate with the suction port, and a suction joint having a suction passage. An air guide port that guides an airflow from the rear in a substantially tangential direction of the suction flow path from the rear near the side of the suction port main body of the suction flow path forming the suction flow path and above the suction flow path,
On the side lower surface of the suction passage main body of the suction flow passage, while having a wind guide groove for guiding an air flow from diagonally forward or forward to a lower portion of the suction flow passage, the intake case is provided with a wick, and inside the suction main body. In an inlet body, which forms an intake passage for communicating the air guide opening and the intake opening and is provided with an opening / closing mechanism for opening and closing the intake passage, the air guide opening is divided into a plurality of parts, and if necessary, the air guide opening is provided. Vacuum cleaner characterized by having a suction body formed so as to be able to change the opening area of the vacuum cleaner. 2. The method according to claim 1, wherein a second port is provided near the air guide port.
An electric vacuum cleaner comprising: a wind guide port; and a second intake port communicating with the wind guide port.