WO2015118940A1

WO2015118940A1 - Suction tool for electric vacuum cleaner, and electric vacuum cleaner provided with said suction tool

Info

Publication number: WO2015118940A1
Application number: PCT/JP2015/051368
Authority: WO
Inventors: 雅俊佐藤; 龍一内田
Original assignee: 三菱電機株式会社; 三菱電機ホーム機器株式会社
Priority date: 2014-02-07
Filing date: 2015-01-20
Publication date: 2015-08-13
Also published as: TW201542154A; JPWO2015118940A1; TWI586306B; JP6288112B2

Abstract

Provided is a suction tool for an electric vacuum cleaner that is convenient for the user while ensuring the capability to suction in airborne dust without negatively affecting the design of the suction tool body of the electric vacuum cleaner. The suction tool is provided with: the suction tool body (21); a first suction opening (25) provided on the bottom-surface side of the suction tool body, dust on a surface to be cleaned being suctioned through said opening (25); and a joint pipe (22) connected to the suction tool body so as to be capable of turning; a second suction opening (34) provided on the joint pipe, airborne dust being suctioned through said opening (34). Due to this configuration, the capability to suction airborne dust can be ensured without negatively affecting the design of the suction tool body of the electric vacuum cleaner.

Description

Vacuum cleaner suction tool and vacuum cleaner equipped with the suction tool

The present invention relates to a suction tool for a vacuum cleaner, and more particularly to a suction tool provided with a rotating connection part, and further to a vacuum cleaner provided with this suction tool.

The suction tool of the vacuum cleaner is provided with a suction port for sucking air containing dust on the lower surface side of the suction tool body facing the surface to be cleaned. Air that contains dust on the surface to be cleaned can be sucked in from this suction port, but small dust or light dust may rise in the air due to the movement of the suction tool, and the dust that has risen again falls on the surface to be cleaned. If you do not come, you can not inhale from the inlet.

Therefore, conventionally, in addition to the (first) suction port provided on the lower surface side of the suction tool body to suck dust on the surface to be cleaned, it floats up from the surface to be cleaned and floats in the air on the upper surface side of the suction tool body. The thing which provided the (2nd) suction inlet for sucking in the dust to do is proposed (refer patent documents 1 and 2).

Japanese Unexamined Patent Publication No. 2011-024611 Japanese Unexamined Patent Publication No. 2010-022745

In the suction tool of the conventional vacuum cleaner described in Patent Literature 1, a slit-like opening is provided as a second suction port on the upper surface side of the suction tool body. Thereby, the dust which floated in the air from the to-be-cleaned surface during the cleaning, and the floating dust can be sucked.

However, since the upper surface of the suction tool body is basically a design surface, like the suction tool of the conventional vacuum cleaner described in Patent Document 1, when providing a slit-like opening on the upper surface side of the suction tool body, If the slit is made narrow in consideration of the design properties, there is a problem that a sufficient suction performance of floating dust cannot be secured.

In addition, if the second suction port is a wide slit, the suction balance between the second suction port and the first suction port provided on the lower surface side may be deteriorated. There is a problem that the dust suction performance may be lowered, and there is also a problem that the design property is impaired by using a wide slit.

On the other hand, in the suction tool of the vacuum cleaner of patent document 2, the air intake provided with the electric flap is provided as a 2nd suction port in the upper surface side of the suction tool main body. By opening the electric flap according to the situation, it is possible to suck in floating dust that has risen from the surface to be cleaned during cleaning, and when the vacuum cleaner is not in use, the air intake can be closed by the electric flap As a result, designability can be ensured.

However, since an electric motor for moving the electric flap and a structure for opening and closing are required, the outer shape of the suction tool main body becomes large and the weight becomes heavy in order to accommodate them. As a result, there has been a problem that the handling of the suction tool is deteriorated and the convenience of the user is deteriorated. There is also a problem of cost increase by adding an electric motor for moving the electric flap and a structure for opening and closing.

The present invention has been made to solve the above-described problems, and while ensuring the suction performance of dust floating in the air without impairing the design of the suction tool main body of the vacuum cleaner, An object of the present invention is to provide a vacuum cleaner suction tool that is easy to use.

The suction tool of the vacuum cleaner according to the present invention that solves the problem includes a suction tool body, a first suction port provided on the lower surface side of the suction tool body, for sucking dust on the surface to be cleaned, and the suction tool. A joint pipe rotatably connected to the main body, and the joint pipe is provided with a second suction port for sucking dust floating in the air.

According to the suction tool of the vacuum cleaner according to the present invention, the second suction port for sucking dust floating in the air is provided in the joint pipe attached to the suction tool body, so that the suction tool body is large. Without increasing the weight, it is possible to ensure the suction performance of floating dust without impairing the design of the upper surface of the suction tool body.

It is a perspective view which shows the state which connected the suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention to the vacuum cleaner. It is sectional drawing which looked at the vacuum cleaner main body from the side surface direction. (A) The figure which looked at the suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention from the upper surface direction, (b) The suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention was seen from the lower surface direction. FIG. It is a perspective view of the suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a perspective view of the state which isolate | separated the suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention into the suction tool main body and the coupling pipe. It is a perspective view of the state where the upper case was removed from the suction tool main part of the suction tool of the vacuum cleaner concerning Embodiment 1 of the present invention. (A) The perspective view of the joint pipe of the suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention, (b) The rotation part of the joint pipe of the suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention It is a perspective view of the state which separated the upper member from. It is a perspective view of the state of the suction tool of the vacuum cleaner concerning Embodiment 1 of the present invention in the state where the cover for connecting a joint pipe to a suction tool main part was removed. FIG. 9A is a cross-sectional view of the AA cross section shown in FIG. 3A as viewed from the side, and FIG. It is the figure which looked at the state which removed the rotating brush from the suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention from the lower surface direction. It is the schematic diagram showing the flow of the air of the suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is the figure which looked at the state which made the joint pipe of the suction tool of the vacuum cleaner concerning Embodiment 1 of this invention parallel to the suction tool main body from the upper surface direction. It is a perspective view of the state which made the joint pipe of the suction tool of the vacuum cleaner concerning Embodiment 1 of this invention parallel to the suction tool main body.

Embodiment 1 FIG.
(Overall configuration)
1 is a perspective view showing a state in which a suction tool of a vacuum cleaner according to Embodiment 1 of the present invention is connected to the vacuum cleaner, and FIG. 2 is a cross-sectional view of the vacuum cleaner body as viewed from the side. 1 and 2, a schematic configuration of the entire vacuum cleaner to which the suction tool of the vacuum cleaner according to Embodiment 1 of the present invention is connected will be described.

As shown in FIG. 1, the suction tool 1 of the vacuum cleaner according to Embodiment 1 of the present invention is connected to the vacuum cleaner body 6 via the extension pipe 2, the grip portion 3, and the hose body 5. As shown in FIG.

A connection port 7 for connecting the hose body 5 is provided on the front side of the main body 6 of the vacuum cleaner. By connecting the hose body 5 to the connection port 7, the suction tool 1 connected via the hose body 5, the extension pipe 2 and the grip portion 3 has an electric blower 10 included in a vacuum cleaner body 6 described later. The suction air to be generated makes it possible to suck in air containing dust.

Further, a handle 8 is provided at the rear of the upper surface of the vacuum cleaner body 6. This is for use when carrying the electric vacuum cleaner body 6 and is made of a resin material. A dust collecting portion 9 is detachably attached to the upper surface of the vacuum cleaner main body 6 so as to be inclined from the front to the rear.

The dust collecting unit 9 is a suction tool generated by suction air generated when the electric blower 10 included in the electric vacuum cleaner main body 6 shown in FIG. 2 is driven by an input from the operation unit 4 provided in the grip unit 3. The dust and air are separated from the air containing the dust sucked in from 1 to collect and store the dust.

Further, the electric vacuum cleaner main body 6 is supplied with electric power from the electric blower 10 as well as to the control board 11 for controlling the drive of the electric blower 10, the output increase / decrease, and the like by the input from the operation unit 4. A cord reel for storing a power cord that is not included is also included.

The hose body 5 whose one end is connected to the connection port 7 of the vacuum cleaner body 6 is formed of a flexible tube having flexibility such as a bellows. The other end of the hose body 5 is connected to one end of the grip portion 3. The grip portion 3 is for operating the suction tool 1 and for handling the electric vacuum cleaner main body 6 and is formed of a hard resin material.

The operation part 4 is provided in the holding part 3 as mentioned above. The operation unit 4 has a plurality of operation switches (not shown), and the control board 11 drives the electric blower 10 in response to inputs from these operation switches. When the driven electric blower 10 generates suction air, it is possible to suck in air containing dust.

The other end of the grip portion 3 is connected to one end of the extension tube 2. Although not shown, the extension tube 2 has a telescopic structure, and can be extended and used as necessary when cleaning, and is formed of a hard resin material like the grip portion 3. ing.

The other end of the extension pipe 2 is connected to the suction tool 1. Hereinafter, the configuration of the suction tool of the electric vacuum cleaner according to Embodiment 1 of the present invention will be described in detail with reference to FIGS. 3 to 8.

(Configuration of suction tool)
3 (a) is a view of the suction tool of the vacuum cleaner according to Embodiment 1 of the present invention as viewed from above, and FIG. 3 (b) is the suction tool of the vacuum cleaner according to Embodiment 1 of the present invention. FIG. 4 is a perspective view of the suction tool of the vacuum cleaner according to Embodiment 1 of the present invention, and FIG. 5 is a view of the suction tool of the vacuum cleaner according to Embodiment 1 of the present invention. The perspective view of the state which isolate | separated into the tool main body and the coupling pipe, FIG. 6 is the perspective view of the state which removed the upper case from the suction tool main body of the suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention, FIG. a) is a perspective view of the joint pipe of the suction tool of the vacuum cleaner according to Embodiment 1 of the present invention, and FIG. 7B is the joint pipe of the suction tool of the vacuum cleaner according to Embodiment 1 of the present invention. FIG. 8 is a perspective view showing a state in which the upper member is separated from the rotating part, and FIG. 8 is a view showing a suction pipe main body of the vacuum cleaner according to Embodiment 1 of the present invention with a joint pipe connected to the suction tool body. It is a perspective view of the cover removed to.
Note that in each drawing, the same reference numerals are given to the same portions or corresponding portions, and a part of the description may be omitted.

As shown in FIGS. 3 to 5, the suction tool 1 is composed of a suction tool body 21 and a joint tube 22 in the shape of an alphabet T. The suction tool main body 21 includes a lower case 31 formed of a hard resin material, an upper case 30 formed of a hard resin material, and a cover formed of a hard resin material and having an appearance in consideration of design. At 32, an outline is constructed. The upper case 30 and the cover 32 are members constituting the upper surface of the suction tool main body 21.

A damper 29 made of a soft resin material is attached to the outer periphery of a contact portion between the lower case 31 and the upper case 30. The damper 29 is for preventing the suction tool 1 from being damaged even when the suction tool 1 hits a wall or furniture during cleaning.

A lower surface portion opening (first suction port) 25 is provided on the lower surface side of the suction tool main body 21. The lower surface portion opening (first suction port) 25 is an opening for sucking dust from a surface to be cleaned such as a floor. There is a space inside the lower surface portion opening (first suction port) 25, and the rotating brush 26 is detachably attached to the space.

The rotating brush 26 is contained in the suction tool main body 21, and the rotational force generated by the motor 37 disposed in the lower case 31 shown in FIG. 6 is transmitted to the belt 38, and further the pulley and belt connected to the pulley connecting shaft 40. 39 is transmitted to rotate, and the cleaning performance is further improved by scraping dust from the surface to be cleaned.

On the lower surface side of the suction tool main body 21, a switch 28 that can be raised and lowered from the lower surface of the suction tool main body 21 is provided. The switch 28 is for turning on and off the rotation of a motor 37 that rotates the rotary brush 26.

Since the rotating brush 26 scoops up dust from the surface to be cleaned, if the rotating brush 26 is rotated when it is not in contact with the surface to be cleaned, wasteful power is consumed or it is dangerous for the user to touch. Therefore, when the suction tool main body 21 is separated from the surface to be cleaned, the switch 28 protrudes from the lower surface, the motor 37 is turned off, the rotation of the rotating brush 26 is stopped, and the suction tool main body 21 is again brought into contact with the surface to be cleaned. The switch 28 is sunk, the motor 37 is turned on, and the rotation of the rotary brush 26 is started.

Furthermore, wheels 27a and 27b are provided on the lower surface side of the suction tool body 21 so that the surface to be cleaned can be moved smoothly. The wheels 27a and 27b are provided with appropriate slidability so that the wheels 27a and 27b may slide sideways.

As shown in FIG. 7, the joint pipe 22 includes a rotating portion 23 and a connecting portion 24. The rotation part 23 is connected to the connection part 24 in a rotatable manner, and the description of this rotation will be described later.

The rotating part 23 of the joint pipe 22 is provided with a joint pipe opening (second suction port) 34. The joint pipe opening (second suction port) 34 rises from the surface to be cleaned during cleaning, and cannot be sucked by the lower surface portion opening (first suction port) 25 of the suction tool main body 21. It is for inhaling dust.

The rotating part 23 is composed of a lower member (second case) 23b formed of a hard resin material as well as an upper member (first case) 23a formed of a hard resin material, and has a hollow structure. Yes.

As shown in FIG. 7B, the joint pipe opening (second suction port) 34 is an area where the upper member (first case) 23a and the lower member (second case) 23b come into contact with each other. 1 case) 23a is provided so as to be partially cut off, and the upper member (first case) 23a and the lower member (second case) 23b come into contact with each other to form a rectangular opening.

The portion where the upper member (first case) 23a and the lower member (second case) 23b come into contact with each other, and the end of the upper member (first case) 23a are notched, is formed of a resin material. This is to make it easier to create a mold for the occasion. By providing a notch shape at the end, it is not necessary to prepare a slide structure or the like in the mold, and the structure of the mold does not become complicated, so that the mold can be created without increasing the cost.

In the first embodiment of the present invention, the upper member (first case) 23a is notched, but the end of the lower member (second case) 23b is partially cut away. The joint pipe opening (second suction port) 34 may be used.

Further, a cutout shape is provided in each of the end portions of the upper member (first case) 23a and the lower member (second case) 23b, and the joint pipe opening (second suction port) 34 can be obtained by combining both. Well, by providing it at the end, it is not necessary to prepare a slide structure or the like in the mold as in the first embodiment of the present invention, and the mold structure does not become complicated. You can create without having to.

The rotation part 23 of the joint pipe 22 is provided with rotation shaft parts 33a and 33b as shown in FIG. The rotation shaft portions 33a and 33b are provided to rotatably connect the joint pipe 22 to the suction tool main body 21, and the rotation shaft portion 33a is connected to the communication port 36a of the suction tool main body 21 shown in FIG. The rotation shaft portion 33b is connected to a communication port 36b represented by an imaginary line provided on a surface facing the communication port 36a.

As shown in FIG. 8, the rotation shaft portions 33 a and 33 b are respectively housed in an upper case semicircular portion 43 a and an upper case semicircular portion 43 b provided in the upper case 30 of the suction tool main body 21, and the cover 32 is attached. By being attached, it is sandwiched between a cover semicircular part 42a provided on the cover 32 and a cover semicircular part 42b represented by an imaginary line provided on a surface facing the cover semicircular part 42a, so that it can freely rotate. Connected to

The communication ports 36a and 36b described above are arranged such that when the upper case 30 and the cover 32 are attached, the upper case semicircular portion 43a and the cover semicircular portion 42a, and the upper case semicircular portion 43b and the cover semicircle. The shape part 42b represents the state combined, respectively.

As shown in FIG. 7, the rotation shaft portions 33a and 33b are provided with rotation shaft portion vent holes 35a and 35b, respectively, in order to allow the rotation shaft portion to vent. As shown in FIG. 1, the suction tool 1 is connected to the electric vacuum cleaner main body 6 through the extension pipe 2, the gripping part 3, and the hose body 5 by the connection part 24 of the joint pipe 22.

FIG. 10 is a view of the state in which the rotary brush is removed from the suction tool 1 of the electric vacuum cleaner according to Embodiment 1 of the present invention when viewed from the lower surface direction. ) Ventilation holes 41a and 41b are provided in the back of 25.

The ventilation openings 41a and 41b are formed in the lower case 31 as shown in FIG. 6, and the air containing dust sucked in by the suction air generated by the electric blower 10 included in the electric vacuum cleaner main body 6 is The air is sucked into the ventilation openings 41a and 41b via the part opening (first suction opening) 25. *

(Explanation of air flow)
FIG. 11 is a schematic diagram showing the flow of air in the suction tool of the electric vacuum cleaner according to Embodiment 1 of the present invention, and the air flow will be described with reference to the above-described content and FIG. 11. In addition, here, the suction tool 1 is demonstrated as what is connected with the vacuum cleaner main body 6 via the extension pipe 2, the holding part 3, and the hose body 5. FIG.

When driving of the electric blower 10 is started by an input from the operation unit 4 provided in the grip unit 3, suction air is generated, and dust is removed from the lower surface portion opening (first suction port) 25 of the suction tool body 21. The contained air is inhaled.

The sucked air containing dust passes through the vent holes 41a and 41b formed in the lower case 31, and is composed of the upper case 30 and the cover 32 and communicates with the lower surface portion opening (first suction port) 25. The first air passage (not shown) through which the first air flow circulates and the second air passage (not shown) through which the second air flow circulates.

The flow of the 1st air which passed the 1st air path distribute | circulates to the rotation shaft part ventilation port 35a of the rotation shaft part 33a provided in the rotation part 23 of the coupling pipe 22 connected with the communicating port 36a. Similarly, the flow of the second air that has passed through the second air path is the ventilation shaft portion ventilation of the rotation shaft portion 33b provided in the rotation portion 23 of the joint pipe 22 connected to the communication port 36b. It distributes to the mouth 35b.

Thereafter, the flow of the first air and the flow of the second air merge in the rotating portion 23 having a hollow structure. Furthermore, from the surface to be cleaned, which is sucked from the joint pipe opening (second suction port) 34 positioned downstream from the electric blower 10 rather than the confluence of the first air flow and the second air flow. The third air flow, which includes dust that floats in the air, such as soaring, merges, and all the first, second, and third air flows merge to perform electric cleaning as the entire air flow It is sucked into the machine body 6.

In addition, in the rotating part 23 where the flow of the first air and the flow of the second air are merged, the flow of the merged air is rectified so that the flow of the merged air easily flows in the direction of the connection part 24. The flow of the first air and the flow of the second air do not become turbulent, and the flow of the third air sucked from the joint pipe opening (second suction port) 34 is obstructed. There is nothing.

Further, in the rotating unit 23 where the flow of the first air and the flow of the second air merge, the flow of the merged air is rectified so that the flow of the merged air easily flows in the direction of the connection unit 24, although not shown. The flow of the first air and the flow of the second air are bent. When the air flow is bent, pressure loss occurs and noise is likely to be generated.

However, in the suction tool 1 of the vacuum cleaner according to Embodiment 1 of the present invention, unlike the conventional one in which the second suction port is provided on the upper surface of the suction tool, the flow of air is bent and merged, resulting in a pressure loss. Since the joint pipe opening (second suction port) 34 is provided in the vicinity of the place where the pressure occurs, pressure loss can be reduced by sucking air from the joint pipe opening (second suction port) 34, It is possible to obtain an effect that cannot be achieved by a conventional suction tool, that is, noise generation can be suppressed.

状況 The situation where dust tends to rise from the surface to be cleaned into the air is when cleaning the space between the furniture and the wall under the low legged furniture where dust tends to accumulate. First, when cleaning the lower part of the furniture with legs, the joint pipe 22 is brought closer to the surface to be cleaned as shown in FIG.

In this state, the joint pipe opening (second suction port) 34 is provided so as to appear at a position where the joint pipe opening (second suction port) can be seen from the traveling direction, and the rotating portion 23 of the joint pipe 22 covers the upper surface of the suction tool main body 21. A cover 32 and a predetermined space B are formed and connected to the suction tool main body 21.

In this state, the predetermined space B between the joint pipe opening (second suction port) 34 and the cover 32 is an interval of about 2 to 3 mm, but the joint pipe 22 is rotated until the predetermined space B is reached. The space between the outer periphery of the moving part 23 and the cover 32 is gradually narrowed as shown in FIG.

However, as described in paragraph 0025, the cover 32 is formed with a smooth curved surface as shown in FIG. 9B having an appearance in consideration of design, and the outer periphery of the rotating portion 23 of the joint pipe 22 is not uneven. Since it is formed with a curved surface, the air containing dust floating in the air, which is the third air flow, flows smoothly to the position of the joint pipe opening (second suction port) 34 and can be reliably sucked in. it can.

Further, the joint pipe 22 is lifted in the rotation direction C shown in FIG. 9A with the rotation shaft portions 33a and 33b provided in the rotation portion 23 as the rotation shaft, and a normal cleaning form as shown in FIG. Then, the joint pipe opening (second suction port) 34 is moved from the traveling direction like the joint pipe opening (second suction port) 34 after rotation shown by a broken line in FIG. Rotates to an invisible position.

Even in this state, the rotating portion 23 of the joint pipe 22 is free of the upper case 30 that constitutes the upper surface of the suction tool main body 21 and the predetermined space B, and has a smooth appearance that takes design characteristics into consideration as described above. Since the cover 32 formed of a curved surface extends to a position immediately before the joint pipe opening (second suction port) 34 after rotation, the cover 32 includes dust floating in the air as the third air flow. The air smoothly flows to the position of the joint pipe opening (second suction port) 34 after the rotation, and can be reliably sucked.

Therefore, dust does not easily stay around the rotating shaft portion 33a and the communication port 36a, and the rotating shaft portion 33b and the communication port 36b rotate, so that the dust is less likely to enter the rotating portion and rotate. Inconveniences such as heavy weight hardly occur, and the rotation performance is easily maintained.

Next, when cleaning the gap between the furniture and the wall, the rotating unit 23 is rotated to a position where it can be rotated in the rotational direction C shown in FIG. The connecting portion 24 and the rotating portion 23 are rotated by a rotating portion 44 that is rotatably connected so that the connecting portion 24 is parallel to the suction tool main body 21, so that the state is like the letter I of the alphabet. The suction tool 1 is moved in the advancing direction at the time of clearance cleaning.

In addition, although the advancing direction at the time of the clearance cleaning shown in FIG. 12 has been described in the example in which the connecting portion 24 is rotated in the direction shown in FIG. 12, the connecting portion 24 is opposite to the direction shown in FIG. If it rotates, the advancing direction at the time of clearance cleaning of the suction tool 1 will turn into the direction 180 degree | times contrary to the direction shown in FIG.

In FIG. 12, the suction tool 1 is viewed from the upper surface direction. However, when the state is like the letter I of the alphabet, the joint pipe opening (second suction port) 34 is not visible from the upper surface direction. Show.

Although not visible from the top surface direction, as shown in FIG. 13, the joint pipe opening (second suction port) 34 is opposite to the traveling direction shown in FIG. 9 (the traveling direction when the letter T is shaped like an alphabet). Appears on the side.

Therefore, the joint pipe opening (second suction port) 34 is in a position opened from a predetermined space with the upper case 30 constituting the upper surface of the suction tool main body 21, so that the gap between the furniture and the wall is cleaned. Air that contains dust that sometimes floats up from the surface to be cleaned and floats in the air can be sucked more reliably.

As mentioned above, according to the suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention, the 2nd for inhaling the dust which floats in the air to the joint pipe rotatably connected with the suction tool main body. Since the suction port is provided, there is no need to provide an unnecessary mechanism for opening and closing the suction port, and the suction tool main body does not increase in size or weight, resulting in poor handling of the suction tool. Therefore, it is easy for the user to use and it is possible to secure the floating dust suction performance without impairing the design of the suction tool body.

In addition, since the second suction port is provided near the location where the air flow is bent and merged to cause pressure loss, the pressure loss can be reduced by sucking air from the second suction port. , Noise generation can be suppressed.

Furthermore, since the rotation part provided with the 2nd suction opening has the upper surface of the suction tool main body and predetermined | prescribed space, it surely sucks the air containing the dust which floats in the air from the 2nd suction opening. This makes it difficult for dust to stay around the place where the joint pipe rotates, and it is difficult for troubles such as heavy rotation to occur due to less dust entering the rotating part, so that the rotation performance can be maintained. .

Then, when the suction tool 1 is shaped like the letter I of the alphabet, the joint pipe opening (second suction port) 34 is opened from a predetermined space with the upper case 30 constituting the upper surface of the suction tool body 21. Therefore, when the gap between the furniture and the wall is cleaned, air containing dust that has risen from the surface to be cleaned and floated in the air can be more reliably sucked, and the cleaning performance is improved.

As described above, the floor surface suction tool according to the present invention can be used in a system that secures the suction performance of floating dust without impairing the design of the upper surface of the suction tool body.

B space, C rotation direction, 1 suction tool, 2 extension pipe, 3 gripping part, 4 operation part, 5 hose body, 6 vacuum cleaner body, 7 connection port, 8 handle, 9 dust collecting part, 10 electric blower, 11 Control board, 21 suction tool body, 22 joint pipe, 23 rotating part, 23a upper member (first case), 23b lower member (second case), 24 connecting part, 25 lower surface part opening (first suction) Mouth), 26 rotating brush, 27a wheel, 27b wheel, 28 switch, 29 damper, 30 upper case, 31 lower case, 32 cover, 33a rotating shaft part, 33b rotating shaft part, 34 joint pipe opening (second) Suction port), 35a rotating shaft portion vent, 35b rotating shaft portion vent, 36a communication port, 36b communication port, 37 motor, 38 belt, 39 belt, 40 pulley connection shaft, 41a ventilation port, 41b ventilation port, 42a cover semicircular part, 42b cover semicircular part, 43a upper case semicircular part, 43b upper Case semicircular part, 44 rotating part, 100 vacuum cleaner

Claims

A suction tool body;
A first suction port provided on the lower surface side of the suction tool body for sucking dust on the surface to be cleaned;
A joint pipe rotatably connected to the suction tool body,
A suction tool for a vacuum cleaner, wherein the joint pipe is provided with a second suction port for sucking dust floating in the air.
The rotating portion for rotatably connecting the joint pipe to the suction tool main body includes a first case and a second case with an air-permeable hollow structure, and the second suction port is connected to the first suction port. The vacuum cleaner suction tool according to claim 1, wherein the vacuum cleaner suction tool is provided in any one of the first case and the second case.
The second suction port is provided at a position where the end of the first case and the second case abut in a state where the rotating portion of the joint pipe is assembled. The vacuum cleaner suction tool according to 2.
A rotating portion for rotatably connecting the joint pipe to the suction tool main body includes a first case and a second case having a hollow structure that allows ventilation, and the second suction port includes the joint. Notches provided in each of the first case and the second case at a position where the end portions of the first case and the second case abut in a state where the rotating portion of the tube is assembled. The vacuum cleaner suction tool according to claim 1, wherein the vacuum cleaner suction tool is formed in a shape.
The upper surface of the suction tool main body and the rotating portion of the joint pipe are connected while securing a predetermined space when the joint pipe is connected to the suction tool main body. The suction tool of the vacuum cleaner of any one of claim | item 4.
The suction tool body includes a first air path and a second air path communicating with the first suction port,
The first air path and the second air path are in communication with a rotatable shaft part provided in the rotating part of the joint pipe, and the second suction port is connected to the second suction path. The suction of the vacuum cleaner according to any one of claims 2 to 5, wherein the suction pipe is provided in the vicinity of a portion where the first air path and the second air path merge. Ingredients.
The suction tool for a vacuum cleaner according to claim 6, wherein the second suction port is provided in the vicinity of the rotating shaft portion provided in the rotating portion of the joint pipe.
An electric blower that generates suction air to suck in dust;
A vacuum cleaner body provided with a dust collecting part for containing the dust;
A hose body connected to the vacuum cleaner body;
A gripping part for handling connected to the hose body;
An operation unit that is provided in the vicinity of the gripping unit and operates the cutting and strength of the electric blower,
An extension pipe connected to the grip part,
The vacuum cleaner provided with the suction tool of the vacuum cleaner of any one of Claims 1-7.