WO2022244468A1 - Vacuum cleaner nozzle - Google Patents

Abstract

Provided is a vacuum cleaner nozzle that can effectively utilize the suction force of a vacuum cleaner and that can efficiently suck in fine dust, etc., without scattering the dust to the surroundings.　This vacuum cleaner nozzle 1 comprises a body 2 of which a connection port is connected to a suction pipe of a vacuum cleaner, and a plurality of flexible pipes 3 and a brush 4 that protrude forward from a distal-end surface 2b of the body 2. The plurality of flexible pipes 3 are composed of one or more first suction pipes 5, and one or more second suction pipes 6 arranged in an alternating manner with the first suction pipes 5. The first suction pipes 5 are arranged along a reference line L on the distal-end surface 2b. The second suction pipes 6 are arranged along the reference line L in an alternating manner with the first suction pipes 5. The brush 4 is provided with one or more first side parts 7, one or more second side parts 8, five intermediate parts 9 disposed in a space S between the first suction pipes 5 and the second suction pipes 6, and outermost parts 10a, 10b disposed nearer to a peripheral edge part 2c of the body 2.

Description

vacuum cleaner nozzle

TECHNICAL FIELD The present invention relates to a cleaner nozzle provided with a plurality of flexible tubes and brushes and connected to a suction pipe of a cleaner, and in particular, it efficiently sucks dust and the like accumulated in the corners of a room and narrow grooves. To provide a vacuum cleaner nozzle capable of immediately sucking dust, etc. swept out on a flat surface regardless of the sweeping direction.

Conventionally, a vacuum cleaner head is mainly designed to clean a flat floor surface, so that the lower surface where the suction port opens is also designed to be flat. Therefore, it is difficult to sufficiently suck dust and dirt that have accumulated in details that have complicated shapes, such as corners of rooms, fittings, furniture, etc., grooves such as window rails, and long and narrow steps. Therefore, nozzles for detail are sold separately as optional items.
However, nozzles for details such as those described above have, for example, a suction port made of hard plastic whose cross section is simply elongated and shaped like a beak, or a plurality of tip openings of suction cylinders provided on the tip surface of the nozzle. In the former, since the brush is implanted in the part, the suction port cannot correspond to the shape of the detail to be cleaned, so the suction action does not reach the detail and there is a risk of damaging the detail. Further, in the latter, there is a possibility that the opening of the suction cylinder is blocked by the brush and the suction effect is lowered.
In order to solve such problems, techniques have been developed for vacuum cleaner nozzles in which the positions of the suction cylinder and the brush are devised, and several ideas have already been disclosed.

Patent Document 1 discloses a device related to a tip suction tool under the name of "a tip suction tool for an electric vacuum cleaner," in which the suction port easily adapts to the shape of the details to be cleaned and can prevent damage to the details. ing.
In the device disclosed in Patent Document 1, a suction portion made of a pipe connecting body made of soft polyvinyl chloride and a bristle bundle made of nylon resin or the like are alternately attached to a rectangular pedestal pipe base made of ABS resin or the like, and It is characterized by arranging in one row along the longitudinal direction, and arranging the arranged suction parts and hair tufts in parallel in a plurality of stages.
In the device having such characteristics, the suction portion is flexible and highly flexible, so that it can be well adapted to the shape of narrow grooves, corners, and the like. Furthermore, the suction portion can be freely swung in this adapted state. Therefore, the dust and dust suction effect of the suction portion is high.
Further, since the tufts are arranged around the suction portion, the suction action of the suction portion is not impaired, and at the same time, the sweeping action of the tufts synergizes with the suction effect, thereby enhancing the cleaning effect.
Furthermore, since the pipe connecting body has an appropriate length, an appropriate distance can be maintained between the corner of the pipe base made of a hard body and the object to be cleaned, and there is no risk of damaging the object to be cleaned.

In addition, Patent Document 2 discloses a contrivance related to a dust suction device that can strengthen the suction action of a suction cylinder under the name of "dust suction device for vacuum cleaner."
In the device disclosed in Patent Document 2, a mounting plate having a plurality of scattered suction holes is attached to the tip of a holding case in which an insertion pipe to be inserted into a suction pipe of a vacuum cleaner is connected. A plurality of bendable suction cylinders made of a flexible material are connected to the suction holes and fixed in a protruding state, and a mounting rod is protruded from the mounting plate at the center between the groups of suction cylinders. A brush holding cylinder having a brush implanted at the tip thereof is fitted and fixed to the mounting rod.
In the invention having such characteristics, the suction cylinder and the brush holding cylinder are separately erected, so that the dust suction action of the suction cylinder is not hindered by the arrangement of the hard brush. It is possible to exhibit excellent suction power at all times.
In addition, dust that was difficult to absorb is swept out with a brush and further sucked by suction cylinders arranged around. Therefore, every corner of the room, the sash, the carpet, etc. can be cleaned accurately.

Further, Patent Document 3 discloses a device called "Dust Vacuum Cleaner for Electric Vacuum Cleaner," which relates to a dust vacuum that can effectively perform dust vacuuming even if the surface to be cleaned is not flat.
The invention disclosed in Patent Document 3 includes a hollow dust collecting body having a suction connection port at one end that can be connected to a suction pipe of an electric vacuum cleaner and having a large diameter at the other end so that a dust collecting head can be inserted therein; A dust suction head having a large number of flexible suction tubes fitted and held in the large diameter portion of the dust suction main body, and a base portion fitted to the outer peripheral portion of the dust suction main body so as to surround the dust suction head. and a ring brush, and the brush planted in the ring brush is longer than the suction tube provided in the dust suction head.
In the device having such features, when the dust suction head is pressed according to the condition of the surface to be cleaned, the inner suction tube surrounded by the bristles of the ring brush bends freely and expands in all directions to form an opening at the tip. It faces the surface to be cleaned. When the dust collector is moved in this state, dust adhering to the surface to be cleaned is stirred up by the bristles of the ring brush and sucked into the dust collector body through the suction tube.
In addition, since the suction tube has a small diameter, the suction speed is high, and the dust that has been stirred up can be quickly removed by suction.

Japanese Utility Model No. 4-25641 Japanese Utility Model Laid-Open No. 7-12052 Japanese Utility Model Laid-Open No. 6-85648

However, in the device disclosed in Patent Document 1, the suction part and the bristle bundles arranged in the longitudinal direction are arranged in parallel in multiple stages, so when cleaning details such as elongated grooves and steps, it is necessary to clean multiple stages. Only a portion of the suction unit and the tufts of bristles arranged in a straight line can reach the details, and the suction force of the main body of the vacuum cleaner cannot be effectively used. Therefore, it cannot be said that the suction efficiency is good.
In addition, referring to FIG. 3, the device disclosed in Cited Document 2 also seems to have the same problem as the above.

Furthermore, in the device disclosed in Cited Document 3, since a plurality of suction tubes are distributed and arranged in a plane, the suction efficiency when cleaning details is not good as in Cited Documents 1 and 2. There is a risk.
In addition, since the ring brushes are arranged to surround the plurality of suction tubes, the plurality of suction tubes deformed in various directions as shown in FIG. cannot confirm whether or not Therefore, there is a possibility that the dust collector will be moved many times, resulting in a longer cleaning time.
In addition, it is conceivable that the ring brush will bounce dust on its outside. In order for the suction tube to suck the dust that has been flipped to the outside of such a ring brush, or that is originally present on the outside of this ring brush, the dust must pass through the ring brush. However, actually, even if the suction tube sucks air, it is unlikely that the dust will pass through the ring brush and reach the suction tube.
Therefore, in the device disclosed in Cited Document 3, there is a possibility that the dust may be scattered around the dust suction device, and the scattered dust may not be efficiently sucked. Such scattering of dust and insufficient suction may occur both in small areas such as the corners of a room and on flat surfaces such as the floor surface.

The present invention has been made in response to such conventional circumstances, and can effectively use the suction power of a vacuum cleaner and efficiently suck fine dust without scattering it around. To provide a cleaner nozzle capable of rapidly sucking dust or the like swept out on a flat surface regardless of the sweeping direction.

In order to achieve the above object, the first invention provides a main body having a connecting port connected to a suction pipe of a vacuum cleaner, a plurality of flexible flexible tubes protruding forward from a front end surface of the main body, and A cleaner nozzle with a brush, the plurality of flexible tubes comprising one or more first suction tubes and one or more second suction tubes alternating with the first suction tubes, one or more first suction pipes are arranged along a reference line on the tip surface, one or more second suction pipes are arranged along the reference line and alternately with the first suction pipes; The brush has at least one or more first sides and one or more second sides, the first side being the first side of the peripheral surface of the first suction pipe that is farthest from the reference line. and the second side is located on the opposite side of the reference line from the first peripheral surface of the peripheral surface of the one or more second suction pipes, and the reference line are arranged on the outside of the second peripheral surface that is farthest from the

In the invention having such a configuration, "along the reference line" means that both the first suction pipe and the second suction pipe are arranged in a row on the reference line on the tip surface, A case where the first and second suction pipes are arranged slightly away from the reference line from each other and along the reference line, that is, a case where the first and second suction pipes are continuously arranged in a zigzag pattern is also included.
Also, the first side portion and the second side portion may be formed in a desired shape such as, for example, a linear shape parallel to the reference line, an arc shape, or an angular shape.

In the invention having the above configuration, a pair of the first side portion and the first suction pipe adjacent to each other and a pair of the second side portion and the second suction pipe adjacent to each other are arranged along the reference line. Alternately arranged, the one or more first sides and the one or more second sides will all be arranged symmetrically about the reference line.
Therefore, when the vacuum cleaner nozzle is pressed against a detailed linear structure such as a corner formed by a floor surface and a wall surface, or a groove such as a rail of a window, along the reference line of the cleaner nozzle, all the first and the second side portions contact the floor surface and the wall surface, respectively, and are bent in a direction in which the tips thereof approach each other. Thus, the tips of the first and second sides are all gathered into a linear structure of detail and arranged in a substantially straight line.

Further, with respect to the first and second suction pipes, the bent first side pushes the first suction pipe and the bent second side pushes the second suction pipe. . Therefore, the suction ports of the first and second suction pipes are all arranged substantially linearly along the linear structure of the details. Note that the substantially straight shape of each suction port means that the suction port of the first suction pipe and the suction port of the second suction pipe are arranged in a single straight line along the detailed linear structure. Alternatively, it means that they are arranged in a zigzag pattern along the linear structure of the detail and slightly separated from each other around this linear structure. Thus, the tips of the first and second sides and the suction openings of the first and second suction tubes are both arranged along the linear structure of the detail, ie the reference line.
In such a case, the suction openings of the one or more first suction pipes are each not covered by the first side. Likewise, the suction openings of the one or more second suction pipes are not covered by the respective second side.
Therefore, in both the state in which the cleaner nozzle is pressed against the linear structure and the case in which the cleaner nozzle is reciprocally moved along the linear structure while being pressed against the linear structure, dust and the like are removed from the tips of the first and second side portions. swept out by At the same time, dust and the like swept out from the tips of the first and second side portions are immediately sucked by the first and second suction pipes in all swept directions.

Further, when the cleaner nozzle is brought into contact with a flat surface and reciprocated in a direction perpendicular to the reference line, the tip of the first side or the tip of the second side moves in the direction opposite to the direction of movement. The first side or the second side, respectively, is flexed to face. Therefore, dust or the like is swept out in the reciprocating direction by the bent first side portion or the second side portion. Then, the swept-out dust or the like is immediately sucked by the first suction pipe or the second suction pipe.

Next, in a second invention, in the first invention, the brush has at least one first side portion, at least one second side portion, and a first suction pipe and a second suction pipe. It has one or more intermediate portions arranged in a gap between and, and is arranged in a continuous shape when the front end face is viewed from the front.
In the invention having such a configuration, there is no particular limitation on the running shape, such as whether the intermediate portion is a straight line or a curved line, or what the angle is with respect to the reference line. Therefore, the continuous shape of the brush is, for example, sinusoidal, zigzag, or rectangular wave when the front end face is viewed from the front.

In the invention having such a configuration, in addition to the effect of the first invention, since the running shape of the intermediate portion is not particularly limited, the intermediate portion sweeps out dust regardless of the moving direction of the cleaner nozzle. Then, the swept-out dust is sucked into the first and second suction pipes adjacent to the intermediate portion.
Further, when the cleaner nozzle is reciprocally moved in a direction orthogonal to the reference line, the intermediate portion removes dust or the like that has passed through the side of the first side portion or the side of the second side portion from the first and second side portions. The likelihood of slipping further between the two suction pipes to reach the outside of the second side or the first side respectively is reduced.

Furthermore, a third invention is based on the second invention, wherein the first and second side portions each form a straight line parallel to the reference line, and the intermediate portion forms a straight line perpendicular to the reference line. Characterized by
In the invention having such a configuration, the brush has a continuous rectangular wave shape when the front end face is viewed from the front. Therefore, in the above-configured invention, in addition to the effect of the second invention, when the cleaner nozzle is moved along the direction parallel to the reference line, the middle portion is positioned between the first side portion and the second side portion, respectively. It has the effect of sweeping out dust present between the sides particularly efficiently.

A fourth invention is characterized in that, in any one of the first to third inventions, the lengths from the distal end surface of the plurality of flexible tubes are each shorter than the length from the distal end surface of the brush. .
In the fourth invention having such a configuration, in addition to the effects of any one of the first to third inventions, for example, when the cleaner nozzle is moved on the floor surface in a direction perpendicular to the reference line, the brush Of these, the tips of the first and second side portions contact the floor surface and bend in the direction opposite to the advancing direction of the cleaner nozzle. However, since the lengths of the first and second suction tubes, which are the plurality of flexible tubes, are shorter than the lengths of the first and second sides, respectively, the first and second suction tubes are , the first and second sides are less flexible. As a result, the suction ports of the first and second suction pipes protrude in the traveling direction. Therefore, the first and second suction pipes can immediately suck the dust and the like swept out by the brush in the traveling direction.

Next, according to a fifth invention, in any one of the first to fourth inventions, each of the plurality of flexible tubes has a suction port opening at the tip and a fixing portion fixed to the tip surface of the main body. and the internal space is tapered to narrow from the fixed portion toward the suction port.
In the fifth invention having such a configuration, in addition to the effects of any one of the first to fourth inventions, since each of the plurality of flexible tubes has a tapered shape, dust sucked from the suction port etc. will not clog the space inside the flexible tube.

Furthermore, according to a sixth invention, in any one of the first to fifth inventions, each of the plurality of flexible tubes is formed with one or more corners on the cross section.
In the sixth aspect of the invention having such a configuration, in addition to the effects of any one of the first to fifth aspects of the invention, excessive bending of the flexible tube at the corners is prevented. In addition, the restoring force for returning the bent flexible tube to its original straight shape is stronger at the corners than at the non-corners.

According to the first invention, in both the state in which the cleaner nozzle is pressed against the linear structure and the case in which the cleaner nozzle is reciprocally moved along the linear structure while being pressed against the linear structure, the dust and the like are removed from the first and second nozzles. is swept by each tip on the side of the At the same time, dust and the like swept out from the tips of the first and second side portions are sucked by the first and second suction pipes in all swept directions. Therefore, according to the first invention, the dust and the like swept out by the first and second side portions are not scattered around, and the dust and the like can be efficiently sucked.
In addition, since the first and second suction pipes are all arranged in a substantially straight line along the straight structure, the suction ports of the first and second suction pipes are opened at locations away from the straight structure and not to be cleaned. do not do. Therefore, according to the first invention, the suction force of the vacuum cleaner can be effectively used.
Further, even when the cleaner nozzle is brought into contact with a flat surface, the dust and the like swept out in the traveling direction are immediately sucked by the first suction pipe or the second suction pipe. Therefore, dust and the like can be efficiently sucked in without scattering the dust and the like.
Furthermore, according to the first invention, the number and arrangement of the first and second suction pipes and the brushes can be changed to vary the distribution of these on the tip surface, so that the size and shape of the object to be cleaned can be varied. It is possible to design the optimum distribution according to the

According to the second invention, in addition to the effect of the first invention, dust is swept out by the intermediate portion regardless of the moving direction of the cleaner nozzle, and then sucked into the first and second suction pipes respectively. Therefore, by providing the intermediate portion, dust and the like can be swept out more effectively, and cleaning efficiency can be improved.
Further, when the cleaner nozzle is reciprocally moved in a direction orthogonal to the reference line, the intermediate portion prevents dust and the like from moving to the side of the first side portion or the side of the second side portion and the first and second side portions. Since the possibility of slipping between the suction pipes and reaching the second side or the outside of the first side, respectively, is reduced, it is possible to ensure that the first suction pipe or the second suction pipe is free of dust and the like. It is possible to guide the flow of dust etc. so that it can be sucked in.

According to the third invention, in addition to the effects of the second invention, for example, when the cleaner nozzle is reciprocally moved on a plane along a direction parallel to the reference line, the middle portion and the first side portion Dust or the like present between the second sides is swept out particularly efficiently. Then, the swept-out dust or the like is immediately sucked into the first and second suction pipes. Therefore, the third invention can be suitably used for cleaning places such as window rails and gaps between furniture and walls where the cleaner nozzle can only be moved in one direction.

According to the fourth invention, in addition to the effect of any one of the first to third inventions, the first and second suction pipes are arranged such that their tips are in contact with the floor surface, and the first and second suction pipes It is difficult to bend in the side portion. In addition, since the suction ports of the first and second suction pipes protrude in the direction of movement of the cleaner nozzle, even if the brushes are adjacent to the first and second suction pipes, the brushes can suck dust and the like. is not hindered. Therefore, according to the fourth invention, there is an effect that the dust or the like swept out by the brush in the traveling direction can be immediately sucked.

According to the fifth invention, in addition to the effect of any one of the first to fourth inventions, since the inside of the flexible tube is not clogged with dust or the like that has passed through the suction port, the cleaning efficiency is improved. can be maintained.

According to the sixth invention, in addition to the effects of any one of the first to fifth inventions, the flexible tube is prevented from being excessively bent at the corners of the flexible tube. It is possible to prevent the flexible tube from facing the object to be cleaned and the occurrence of a closed portion in the middle of the flexible tube.
In addition, the bending direction of the flexible tube can be controlled to some extent by providing the corners. Therefore, it is possible to uniformly align the bending directions of the plurality of flexible tubes and prevent the distribution range of the suction ports from being excessively expanded.
Furthermore, since the restoring force of the corners is stronger than the restoring force of the portions other than the corners, it is easy to align the postures of the plurality of flexible tubes after being restored from bending, and the vacuum cleaner nozzle can be continuously changed. It is possible to prevent the suction ports from opening in irregular directions after being moved in the movement direction.

(a) is an external view of a cleaner nozzle according to an embodiment when viewed from an oblique direction, and (b) is a perspective view of a flexible tube constituting the same cleaner nozzle when viewed from an oblique direction. is. Fig. 1(a) is an external view of the cleaner nozzle according to the embodiment when viewed from direction A in Fig. 1(a); (a) is a front image taken from the front of the prototype of the cleaner nozzle according to the example, (b) is a side image taken from the direction B in (a), and (c) is the image in (a). It is a perspective image photographed from the C direction. 4(a) to 4(c) are images of a prototype for explaining the action of the cleaner nozzle according to the example. (a) and (b) are external views of the cleaner nozzle according to the embodiment when viewed from direction A in FIG. 1, and (c) is a cross-sectional view taken along line DD in (a). , (d) is a cross-sectional view taken along line EE in (b). 4(a) and 4(b) are images of a prototype for explaining the action of the first and second suction pipes constituting the cleaner nozzle according to the embodiment, respectively; (a) and (b) are images of a prototype for explaining the action of the cleaner nozzle according to the example, respectively. 5(a) and 5(b) are cross-sectional views taken along line DD in FIG. 5(a). 4(a) to 4(c) are images of a prototype for explaining the action of the cleaner nozzle according to the example. 1(a) and 1(b) are external views of cleaner nozzles according to first and second modifications of the embodiment, respectively, viewed from direction A in FIG. (a) is an external view of a cleaner nozzle according to the prior art when viewed from an oblique direction, and (b) is a side view when viewed from direction E in (a). FIG. 11(a) is an external view of a conventional vacuum cleaner nozzle viewed from direction F in FIG. (a) is an external view of a vacuum cleaner nozzle according to the prior art when viewed obliquely from below, and (b) is a cross-sectional view taken along line HH in FIG. 12(a). .

A cleaner nozzle according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. FIG. 1(a) is an external view of a cleaner nozzle according to an embodiment when viewed from an oblique direction, and FIG. 1(b) is an oblique view of a flexible tube constituting the same cleaner nozzle. 1 is a perspective view of a case; FIG. FIG. 2 is an external view of the cleaner nozzle according to the embodiment when viewed from direction A in FIG. 1(a).
As shown in FIG. 1(a), a cleaner nozzle 1 according to an embodiment of the present invention includes a main body 2 having a connection port 2a connected to a suction pipe (not shown) of a cleaner, and a tip of the main body 2. It has a plurality of flexible tubes 3 and brushes 4 protruding forward from the surface 2b. The forward direction is the normal direction (the Z direction in the figure) of the tip surface 2b. Also, the A direction is the opposite direction to the Z direction.

The main body 2 of the cleaner nozzle 1 is made of a hard synthetic resin material and has a rectangular tip surface 2b. The main body 2 also includes a connecting portion 2A having a substantially cylindrical shape with a connecting port 2a opened. The direction in which the plurality of flexible tubes 3 are continuously arranged in one row is the longitudinal direction Y of the distal end surface 2b, and the direction perpendicular to the longitudinal direction Y is the lateral direction X of the distal end surface 2b. Also, the Z direction is orthogonal to the longitudinal direction Y and orthogonal to the lateral direction X. As shown in FIG.
Further, the flexible tube 3 is formed of a synthetic resin material having flexibility and restoring force, and is a substantially square cylindrical body having four corners 3e (see FIG. 1(b)) on the cross section. It has a suction port 3a opened at the tip of the flexible tube 3, and a fixing portion 3b embedded and fixed in the tip surface 2b.
The cross section of the flexible tube 3 refers to a plane parallel to the XY plane defined by the longitudinal direction Y and the lateral direction X. Also, the length L3 from the tip surface 2b of the plurality of flexible tubes ₃ is shorter than the length L4 from the tip surface 2b of the brush _4. As shown in FIG. Specifically, the ratio of length L3 to length L4 is _{9:10 ,} but other ratios such as 7:10 or 8:10 may be used.
The brush 4 is made of a synthetic resin having appropriate hardness and restoring force necessary for sweeping out dust and dirt, and has a tip 4a and a base end 4b planted on the tip surface 2b.

Further, as shown in FIG. 1(b), the flexible tube 3 has a tapered shape in which the internal space narrows from the fixed portion 3b toward the suction port 3a. Specifically, on the cross section of the flexible tube 3, the internal area S ₂ (hatched portion) of the fixing portion 3b is larger than the internal area S ₁ (hatched portion) of the suction port 3a.
Therefore, dust or the like sucked from the suction port 3a does not clog the space inside the flexible tube 3 while moving to the fixed portion 3b.
Further, the flexible tube 3 has a pair of sides 3c, 3c, a pair of sides 3d, 3d perpendicular to the sides 3c, 3c, and four corners 3e formed by the sides 3c, 3d. Prepare. Specifically, the sides 3c, 3c are parallel to the reference line L, and the sides 3d, 3d are perpendicular to the reference line L. Therefore, the flexible tube 3 is prevented from bending excessively outward along the direction _Ld in which the two diagonal lines connecting the corners 3e, 3e are extended.

Next, as shown in FIG. 2, the plurality of flexible tubes 3 consist of three first suction tubes 5 and three second suction tubes 6 .
The three first suction pipes 5 are arranged along the reference line L on the tip surface 2b of the main body 2, and each has a suction port 5a. The three second suction pipes 6 are arranged alternately with the first suction pipes 5 along the reference line L, and each has a suction port 6a.
Here, the reference line L is parallel to the pair of long sides 2b ₁ and 2b ₁ of the distal end surface 2b and the longitudinal direction Y, and is parallel to the pair of short sides 2b ₂ and 2b ₂ of the distal surface 2b. It is an imaginary straight line that divides into two. The ratio of the length of the long side 2b1 and the length of the short side _2b2 is set to 6: ₁ , for example.

In addition, the brush 4 includes three first side portions 7 arranged near the peripheral edge portion 2c of the main body 2, three second side portions 8 arranged near the peripheral edge portion 2c, and a first It has five intermediate portions 9 arranged in the gap S between the suction pipe 5 and the second suction pipe 6, and the outermost portions 10a and 10b arranged near the peripheral portion 2c. The first side portion 7, the second side portion 8, the intermediate portion 9, and the outermost portions 10a and 10b are tufts of bristles planted without gaps in elongated rectangular regions on the tip surface 2b.
Of these, the first side portions 7 are arranged outside the first peripheral surface 5 b farthest from the reference line L among the peripheral surfaces of the first suction pipe 5 . In addition, the second side portion 8 is located on the side opposite to the first peripheral surface 5b with respect to the reference line L in the peripheral surface of the second suction pipe 6, and is farthest from the reference line L. They are arranged outside the peripheral surface 6b.

The three first side portions 7 and the three second side portions 8 form a straight line parallel to the reference line L, respectively.
The five intermediate portions 9 connect the first side portion 7 and the second side portion 8 adjacent to the first side portion 7, and form straight lines perpendicular to the reference line L. .
Further, the outermost portions 10a and 10b are also straight lines orthogonal to the reference line L, respectively. Therefore, the brushes 4 are continuously arranged in a rectangular wave shape when the tip surface 2b is viewed from the front.

Next, the configuration of the prototype of the cleaner nozzle 1 will be described with reference to FIG. Fig. 3(a) is a front image of the prototype of the cleaner nozzle according to the example photographed from the front, and Fig. 3(b) is a side image photographed from the direction B in Fig. 3(a). (c) is a perspective image taken from direction C in FIG. 3(a).
As shown in FIGS. 3( a ) to 3 ( c ), in the prototype cleaner nozzle 1 , a first side portion 7 , a second side portion 8 , an intermediate portion 9 and a maximum Each of the outsides 10a and 10b is composed of a plurality of small bundles 4A implanted in a small circular area on the tip surface 2b. Further, the substantially cylindrical connecting portion 2A' is formed longer than the connecting portion 2A shown in FIG.

Next, the action when the cleaner nozzle is pressed against the corner will be described using FIG. 4 and FIGS. 11 and 12 as a comparative example. 4(a) to 4(c) are images of a prototype for explaining the action of the cleaner nozzle according to the embodiment, and FIG. 4(b) and 4(c) are views from the suction port side of the flexible tube. FIG. 11(a) is an external view of a conventional vacuum cleaner nozzle viewed obliquely, and FIG. 11(b) is a side view viewed from direction E in FIG. 11(a). FIG. 12(a) is an external view of a conventional vacuum cleaner nozzle viewed from direction F in FIG. 11(b), and FIG. It is a cross-sectional view. 1 to 3 are denoted by the same reference numerals in FIG. 4, and description thereof will be omitted.

As shown in FIG. 4(a), it is assumed that the cleaner nozzle 1 is pressed obliquely upward against the floor surface 50a against the corner portion 50 having the linear structure 50c formed by the floor surface 50a and the wall surface 50b. shall be At this time, when the second side portion 8 side is directed upward, the tip 8a of the second side portion 8 comes into contact with the wall surface 50b.
4(b), before the cleaner nozzle 1 is pressed against the corner 50, the suction port 5a of the first suction pipe 5 and the suction port 6a of the second suction pipe 6 They are arranged in one row along the line L (see FIG. 2). On the other hand, the first side portion 7 and the second side portion 8 are arranged at positions separated from the reference line L, respectively.

On the other hand, as shown in FIG. 11(a), in the cleaner nozzle 60 according to the prior art, two suction pipes 61a are formed in a first row 61b and a second row 61c in which two suction pipes 61a are arranged horizontally in the drawing. , brushes 62 surrounding the plurality of flexible tubes 61, and a main body 63 to which the flexible tubes 61 and the brushes 62 are fixed on the tip surface 63a. Also, the brush 62 is fixed so as to extend in a direction perpendicular to the tip surface 63a.

Further, in the cleaner nozzle 1 according to the example, from the state of FIG. 4(b), the cleaner nozzle 1 is moved to the transparent corner portion 50 so that the reference line L (see FIG. 2) is aligned with the linear structure 50c. of the brush 4, especially the tip 7a of the first side portion 7 and the tip 8a of the second side portion 8 of the brush 4 abut against the floor surface 50a and the wall surface 50b respectively, bend and approach each other. Bend to

Therefore, as shown in FIG. 4(c), the tip 7a of the first side portion 7 and the tip 8a of the second side portion 8 are all gathered in the linear structure 50c of the corner portion 50 to form a substantially straight line. arrayed.
As for the first suction pipe 5 and the second suction pipe 6, the bent first side portion 7 pushes the first suction pipe 5, and the bent second side portion 8 pushes the second suction pipe. The suction pipe 6 will be pushed. Therefore, the suction ports 5a of the three first suction pipes 5 are arranged substantially linearly beyond the linear structure 50c of the corner 50 and slightly away from the linear structure 50c. The same applies to the suction ports 6a of the three second suction pipes 6. As shown in FIG.

Therefore, the tips 7a, 8a and the suction ports 5a, 6a are both arranged along the linear structure 50c. In more detail, the suction port 5a of the first suction pipe 5 is arranged symmetrically with the tip 7a of the first side portion 7 across the straight structure 50c, and the suction port 6a of the second suction pipe 6 are arranged symmetrically with the tip 8a of the second side portion 8 across the linear structure 50c. Thus, the suction mouth 5a of the first suction pipe 5 is not covered by the first side 7 respectively. Similarly, the suction mouth 6a of the second suction pipe 6 is also not covered by the second side 8 respectively.
Therefore, in both the state in which the cleaner nozzle 1 is pressed against the linear structure 50c and the case in which the nozzle 1 is reciprocally moved along the linear structure 50c while being pressed against the linear structure 50c, dust and the like are kept away from the first side portion 7, It is swept by the second side 8, the middle 9 and the outermost 10a, 10b. At the same time, dust or the like swept out from the first side 7, the second side 8, etc. is immediately sucked by the first suction pipe 5 and the second suction pipe 6 in all directions in which it is swept. be

In contrast, in the prior art cleaner nozzle 60, the cleaner nozzle 60 is positioned at the transparent corner 50 (see FIG. 1) such that the first row 61b and the second row 61c are arranged along the straight structure 50c. 4), the tip 62a of the brush 62 expands in the direction parallel to the linear structure 50c and deforms so as to narrow in the direction perpendicular to the linear structure 50c, as shown in FIG. 12(a).
Also, although the first row 61b and the second row 61c of the flexible tube 61 are pushed by the narrowed brush 62 and come close to each other, they are not arranged in a concentrated manner right above the linear structure 50c. Therefore, the cleaner nozzle 60 cannot sufficiently sweep out and suck in the dust and the like accumulated in the linear structure 50c.

Next, when the cleaner nozzle 60 shown in FIG. 12A is viewed from the side, as shown in FIG. ) is in contact with the linear structure 50c. Similarly, as shown in FIG. 12(b), the tip 62a of the brush 62 that contacts the linear structure 50c is only the portion surrounded by the ellipse shown in FIG. The second rows 61c are both located away from the linear structure 50c.
Therefore, even when the cleaner nozzle 60 is reciprocated along the linear structure 50c, only both sides of the brush 62 can sweep out dust and the like. Furthermore, since the flexible tubes 61 are not concentrated on the linear structure 50c, the flexible tubes 61 cannot sufficiently absorb the swept-out dust and the like.

Further, when the cleaner nozzle 60 is reciprocated along the direction perpendicular to the linear structure 50c, the brush 62 may flip dust or the like to the outside. In order for the suction pipe 61a to suck the dust and the like flipped to the outside of the brush 62, it is necessary to repeatedly move the cleaner nozzle 60 over a wide range.
On the other hand, although illustration is omitted, even when the brush 62 is pressed against an elongated groove or step or moved along this groove, only a portion of the brush 62 and a portion of the plurality of flexible tubes 61 are in the groove. etc. does not reach
Therefore, in the cleaner nozzle 60 according to the prior art, when the object to be cleaned does not have a planar shape such as a corner 50 or a groove, the suction force of the cleaner body can be effectively used regardless of the moving direction of the cleaner nozzle 60. Not only that, but there is a risk of scattering dust around it, which can lengthen the time required for cleaning.

Next, the action of the first and second suction pipes forming the cleaner nozzle 1 will be described with reference to FIGS. 5 and 6. FIG. 5(a) and 5(b) are external views of the cleaner nozzle according to the embodiment when viewed from direction A in FIG. 1, and FIG. 5(d) is a cross-sectional view taken along line EE in FIG. 5(b). 6(a) and 6(b) are images of a prototype for explaining the action of the first and second suction pipes constituting the cleaner nozzle according to the embodiment, respectively. 6(b) is a view of the cleaner nozzle of FIG. 6(a) viewed obliquely from below. 1 to 4 are denoted by the same reference numerals in FIGS. 5 and 6, and descriptions thereof are omitted.
As shown in FIG. 5(a), before the brush 4 is pressed against the corner 50, as shown in FIG. 5(c), both the second side portion 8 and the second suction pipe 6 2 straightly protrudes in the Z direction from the tip end surface 2b.

On the other hand, when the brush 4 is pressed against the corner 50, as shown in FIGS. 5(b) and 5(d), the tip 8a of the second side 8 abuts against the wall surface 50b and straightens. It bends towards structure 50c. Further, the second suction pipe 6 is also pushed by the bent second side portion 8 and bent toward the floor surface 50a. On the other hand, the first suction pipe 5 is pushed by the first side portion 7 bent toward the wall surface 50b and similarly bent. As a result, the suction ports 5a and 6a protrude away from the tip 7a of the first side portion 7 and the tip 8a of the second side portion 8, respectively, gathered in the linear structure 50c.

Actually, as shown in FIG. 6(a), when the brush 4 is pressed against the corner 50 with the first side 7 side facing upward, the tip 7a of the first side 7 faces the wall surface 50b. are collected in the linear structure 50c against the . However, the length L ₃ (see FIG. 1) from the tip surface 2b of the suction port 6a of the second suction pipe 6 is longer than the length L ₄ (see FIG. 1) from the tip 7a of the first side portion 7. is short, the suction port 6a does not come into contact with the wall surface 50b. Therefore, since the gap S1 is formed between the suction port 6a and the wall surface 50b, the suction port 6a is not closed by the wall surface 50b. In addition, the suction port 6a protrudes outward from the first side portion 7. As shown in FIG.

Similarly, as shown in FIG. 6(b), the length L3 from the tip surface 2b of the suction port 5a of the first suction pipe ₅ is the length L4 from the tip 8a of the second side portion ₈ . , the suction port 5a of the first suction pipe 5 does not come into contact with the floor surface 50a. Therefore, since the gap S2 is also formed between the suction port 5a and the wall surface 50b, the suction port 5a is not closed by the floor surface 50a. In addition, the suction port 5 a protrudes outward from the second side portion 8 . The above is the same when the brush 4 is pressed against the corner 50 with the second side 8 facing upward.

Further, the action when the cleaner nozzle is moved on a plane will be described with reference to FIGS. 7 to 9 and FIG. 13 as a comparative example. 7(a) and 7(b) are images of a prototype for explaining the action of the cleaner nozzle according to the example, respectively, when moved in a direction perpendicular to the reference line on a plane. is a view of the vacuum cleaner nozzle from above. 1 to 6 are denoted by the same reference numerals in FIGS. 7 to 9, and description thereof will be omitted.
As shown in FIG. 7(a), the tip 4a of the brush 4 is brought into contact with a plane 51, and the cleaner nozzle 1 is moved on the plane 51 in the traveling direction P orthogonal to the reference line L (see FIG. 2). All of the three first side portions 7 are bent in a direction opposite to the traveling direction P when they are made to move. Therefore, each of the three second suction pipes 6 protrudes from between the first side portions 7 . In addition, since the length L ₃ (see FIG. 1) of the first suction pipe 5 and the second suction pipe 6 is shorter than the length L ₄ (see FIG. 1) of the brush 4, the suction port 6a is not closed by , and the open state is maintained.

Therefore, as shown in FIG. 7(b), when dust or the like is swept out in the direction of travel P by the three first side portions 7, the dust or the like is swept away as indicated by the white arrows. 2 suction pipe 6, it is quickly sucked.
Although illustration is omitted, when the cleaner nozzle 1 is moved in the direction opposite to the direction of travel P, the dust and the like swept out by the second side portions 8 are separated from each other by the second side portions 8. The first suction pipe 5 protruding from the space quickly sucks the air.

Also, the action when focusing on the second suction pipe 6 will be described with reference to FIG. 8(a) and 8(b) are cross-sectional views taken along line DD in FIG. 5(a).
As shown in FIG. 8( a ), the second suction pipe 6 protrudes from the tip surface 2 b of the main body 2 in the Z direction just before the tip 4 a of the brush 4 contacts the flat surface 51 .
On the other hand, as shown in FIG. 8(b), when the tip 4a of the brush 4 is brought into contact with the flat surface 51 and moved in the traveling direction P, the curved second side portion 8 of the brush 4 , dust and the like (marked with black circles in the figure) are swept out in the traveling direction P. The swept dust or the like is sucked into the second suction pipe 6 through the opened suction port 6a. Similarly, when the brush 4 is moved in the direction opposite to the traveling direction P, dust and the like swept out by the first side portion 7 pass through the open suction port 5a and are sucked into the first suction pipe 5. be

Next, FIGS. 9(a) to 9(c) are images of the prototype for explaining the action of the cleaner nozzle according to the example, respectively, from the tip side of the brush and from the upper oblique direction. I saw it. Among them, FIG. 9A shows the state before the tip of the brush is brought into contact with the flat surface. 9(b) and 9(c) are obtained when the tip of the brush is moved in a direction parallel to the reference line on the plane. 7 and 8 are denoted by the same reference numerals in FIG. 9 as well, and description thereof will be omitted.
As shown in FIG. 9(a), before the tip 4a of the brush 4 is brought into contact with the flat surface 51, the brush 4, the first suction pipe 5 and the second suction pipe 6 are arranged in the same manner as in FIG. , are in an unbent state.

Next, as shown in FIG. 9B, the tip 4a of the brush 4 is brought into contact with a transparent plane 51, and on this plane 51, the cleaner nozzle 1 is moved parallel to the reference line L (see FIG. 2). It is assumed that the robot is moved in the traveling direction Q. Then, since the tip 4a goes in the direction opposite to the moving direction Q, the entire brush 4 is bent.
Then, the first suction pipe 5 and the second suction pipe 6 are pushed by the bent intermediate portion 9 and the outermost portion 10b, and are slightly bent in the direction opposite to the traveling direction Q. As shown in FIG. However, as described above, the length L3 of the first suction pipe 5 and the second suction pipe ₆ is shorter than the length L4 of the brush ₄ , so the suction ports 5a and 6a are closed by the plane 51. never

Therefore, as shown in FIG. 9(c), when the brush 4 is moved in the traveling direction Q, the intermediate portion 9 (see FIGS. 9(a) and 9(b)) and the outermost portions 10a and 10b are distributed along the direction perpendicular to the traveling direction Q, so that more dust and the like can be swept out.
In addition, since the suction ports 5a and 6a are opened between the five intermediate portions 9 and the outermost portions 10a and 10b, respectively, the five intermediate portions 9 and the outermost portions 10a provide air in the traveling direction Q. The dust and the like swept out is quickly sucked by the first suction pipe 5 and the second suction pipe 6 adjacent to the intermediate portion 9 and the like, as indicated by white arrows. The same is true when the brush 4 is moved in the direction opposite to the traveling direction Q.

Next, the action of the suction pipe 61a provided in the conventional cleaner nozzle will be described with reference to FIG. FIG. 13(a) is an external view of a vacuum cleaner nozzle according to the prior art when viewed obliquely from below, and FIG. 13(b) is an arrow view at the same position as line HH in FIG. 12(a). It is a sectional view.
As shown in FIGS. 13(a) and 13(b), in the conventional cleaner nozzle 60, when the cleaner nozzle 60 is brought into contact with the flat surface 51 and moved in the traveling direction Q, Dust and the like (marked with black circles in the figure) are swept out from the brush 62 toward the traveling direction Q side.
However, since the four suction pipes 61a are surrounded by the brushes 62, only a very small amount of dust or the like that has passed through the gaps of the brushes 62 is sucked by the suction pipes 61a. .

Further, as shown in FIG. 13(b), inside the brush 62, since there is a space between the brush 62 and the suction pipe 61a, only a part of the dust and the like swept inside the brush 62 is It is sucked by the suction pipe 61a.
As described above, the vacuum cleaner nozzle 60 is not efficient in sucking dust and the like. Therefore, the user tries to suck in as much dust as possible by repeatedly moving the cleaner nozzle 60 back and forth along the traveling direction Q. It may cause

As described above, according to the cleaner nozzle 1, when the cleaner nozzle 1 is pressed against the corner 50, the tip 7a of the first side portion 7 and the tip 8a of the second side portion 8 and the first The suction port 5a of the second suction pipe 5 and the suction port 6a of the second suction pipe 6 are both arranged along the linear structure 50c of the corner portion 50. As shown in FIG. Therefore, according to the cleaner nozzle 1, the first side 7, the second side 8, the first suction pipe 5 and the second suction pipe 6 can all be concentrated in the straight structure 50c. Therefore, the suction force of the main body of the vacuum cleaner can be effectively used.

Further, both the first side portion 7 and the second side portion 8 are bent, so that the second suction pipe 6 and the first suction pipe 5 protrude, respectively. Since the opening is outside, even if the brush 4 is adjacent to the first suction pipe 5 and the second suction pipe 6, the brush 4 does not hinder the suction of dust or the like. In addition, the first suction pipe 5 and the second suction pipe 6 remove dust and the like swept out from the tip 7a of the first side portion 7 and the tip 8a of the second side portion 8. Inhale immediately in all directions.
Therefore, according to the cleaner nozzle 1, when the brush 4 pressed against the corner 50 is reciprocated along the linear structure 50c, the first suction pipe 5 and the second suction pipe 6 remove dust and the like. Since it can be sucked in completely, dust and the like will not scatter around, and the time required for cleaning can be shortened.

Furthermore, when the cleaner nozzle 1 is reciprocally moved on the plane 51 along the direction perpendicular to the reference line L, dust and the like swept out by the first side portion 7 and the second side portion 8 are , into the second suction pipe 6 and the first suction pipe 5 adjacent to each other along the reference line L, the cleaner nozzle 1 can also efficiently suck dust and the like.
Further, when the cleaner nozzle 1 is moved in the direction parallel to the reference line L on the plane 51, the intermediate portion 9 and the outermost portions 10a and 10b can efficiently sweep out dust and the like. Furthermore, since the swept-out dust or the like is quickly sucked by the first suction pipe 5 and the second suction pipe 6, there is no need to repeatedly move the cleaner nozzle 1 over a wide range. can save time.

In addition, regardless of the moving direction of the cleaner nozzle, the dust or the like that has passed through the suction port 3a will not clog the interior of the first suction pipe 5 and the second suction pipe 6, that is, the flexible pipe 3. , the cleaning efficiency can be maintained at a high level.
Since the flexible tube 3 is prevented from bending excessively outward at the four corners 3e, the suction port 3a of the flexible tube 3 does not face the object to be cleaned, It is possible to prevent a closed part from occurring in the middle of the pipe 3 .

Further, by providing the corner portion 3e, the bending direction of the flexible tube 3 can be controlled to some extent. Specifically, the corners 3e are formed at four intersections of sides 3c, 3c parallel to the reference line L and sides 3d, 3d orthogonal to the reference line L, thereby forming the plurality of flexible tubes 3 are aligned in a direction parallel to or perpendicular to the reference line L. Therefore, regardless of the bending direction of the tip 4a of the brush 4, the bending of the flexible tube 3 can be prevented.
Furthermore, the restoring force of the corner 3e is stronger than the restoring force of the sides 3c and 3d. Therefore, the postures of the plurality of flexible tubes 3 are easily aligned after being restored from bending, and the suction ports 3a can be opened in irregular directions after the cleaner nozzle 1 is continuously moved in different moving directions. can be prevented. Therefore, even when the posture of the cleaner nozzle 1 is varied according to the shape of the object to be cleaned, dust and the like can always be efficiently sucked.

Further, configurations of cleaner nozzles according to first and second modifications of the embodiment will be described with reference to FIG. FIGS. 10(a) and 10(b) are external views of cleaner nozzles according to first and second modifications of the embodiment, respectively, when viewed from direction A in FIG. 1 to 9 are denoted by the same reference numerals in FIG. 10 as well, and description thereof will be omitted.
As shown in FIG. 10(a), a cleaner nozzle 1A according to a first modification of the embodiment includes a brush 11 instead of the brush 4 that constitutes the cleaner nozzle 1 according to the embodiment. The cleaner nozzle 1A also has four first suction pipes 5 and three second suction pipes 6, the arrangement of which is different from that of the cleaner nozzle 1. FIG. The configuration of the cleaner nozzle 1A other than this is the same as the configuration of the cleaner nozzle 1 .

The brush 11 includes four first side portions 12 (hatched portions) and three second side portions 13 (hatched portions) arranged near the peripheral edge portion 2c on the long sides 2b ₁ and 2b ₁ of the main body 2 . ), six intermediate portions 14 (black portions) respectively arranged in the gaps S between the first suction pipe 5 and the second suction pipe 6, and peripheral edges of the short sides 2b ₂ and 2b ₂ of the main body 2 It consists of the outermost portions 15a and 15b arranged near the portion 2c.

That is, the brush 11 has a zigzag shape on the distal end surface 2 b of the main body 2 and has an acute-angled portion C ₁ composed of three first side portions 12 and an acute-angled portion C ₂ composed of three second side portions 13 . It has a continuous shape. Alternatively, if the brush 4 of the cleaner nozzle 1 according to the embodiment of the present invention shown in FIG. It can be said that there is none. The first side portion 12, the second side portion 13, the intermediate portion 14 and the outermost portions 15a and 15b are each composed of a plurality of small bundles planted on the tip surface 2b.
Next, the four first suction pipes 5 and the three second suction pipes 6 are arranged alternately along the reference line L and in directions away from each other. Therefore, connecting the first suction pipe 5 and the second suction pipe 6 forms a zigzag continuous shape on the tip surface 2b.

In the cleaner nozzle 1A configured as described above, for example, when the cleaner nozzle 1A is pressed against the corner 50 with the reference line L along the linear structure 50c of the corner 50 as shown in FIG. _are bent toward the reference line L, _respectively . Therefore, the _first suction pipe 5 is pushed by the bent acute angle portion C1, the intermediate portion 14 adjacent thereto, and the outermost portions 15a and 15b. At the same time, the second suction pipe 6 is pushed by the bent acute angle portion _C2 and the intermediate portion 14 adjacent thereto. Therefore, the first suction pipe 5 and the second suction pipe 6 are arranged along the reference line L in a zigzag pattern.
Therefore, dust and the like are collected in the linear structure 50c by the acute _- angled portions C1 and _C2 , the intermediate portion 14 and part of the outermost portions 15a and 15b. Therefore, the first suction pipe 5 and the second suction pipe 6 can efficiently suck the collected dust and the like. Furthermore, since the intermediate portion 14 is arranged so as to cross the gap S, scattering of dust and the like can be prevented.
Further, when the cleaner nozzle 1A is reciprocated along the linear structure 50c, dust is swept out particularly by the intermediate portion 14 and the outermost portions 15a and 15b. The swept dust or the like is sucked by the first suction pipe 5 and the second suction pipe 6 .

Further, when the cleaner nozzle _1A is moved, for example, _on a plane 51 as shown in _FIG . Dust and the like swept out in the traveling direction _R1 by the intermediate portion 14 adjacent to the second suction pipe 6 is sucked. Further, when the cleaner nozzle 1A is moved in the traveling direction _R2 opposite to the traveling direction _R1 , the sharp _- angled portion C1, the intermediate portion 14 adjacent to the acute _- angled portion C1, and the outermost portions 15a and 15b advance. Dust or the like swept out in the direction _R2 is sucked by the first suction pipe 5 .
Furthermore, when the cleaner nozzle 1A is reciprocated along the direction parallel to the reference line L, the middle portion 14 and the outermost portions 15a and 15b of the brush 11 can sweep out dust and the like. In addition, since the intermediate portion 14 and the outermost portions 15a and 15b are arranged to be inclined with respect to the reference line L, the cleaner nozzle 1A can be reciprocated in any direction other than perpendicular and parallel to the reference line L. Even in this case, a large amount of dust can be swept out. Other actions and effects of the cleaner nozzle 1</b>A are the same as those of the cleaner nozzle 1 .

Next, a configuration of a cleaner nozzle according to a second modified example of the embodiment will be described.
As shown in FIG. 10(b), a cleaner nozzle 1B according to a second modification of the embodiment includes a brush 16 instead of the brush 4 that constitutes the cleaner nozzle 1 according to the embodiment. The cleaner nozzle 1B also includes three first suction pipes 5 and three second suction pipes 6, which are arranged along the reference line L in the same manner as the cleaner nozzle 1. columns, and alternately arranged. The configuration of the cleaner nozzle 1B other than this is the same as the configuration of the cleaner nozzle 1 .

The brush 16 includes three first side portions 17 (hatched portions) and three second side portions 18 (hatched portions) arranged near the peripheral edge portion 2c of the long sides 2b ₁ and 2b ₁ of the main body 2 . ), five intermediate portions 19 (black portions) respectively arranged in the gaps S between the first suction pipe 5 and the second suction pipe 6, and peripheral edges of the short sides 2b ₂ and 2b ₂ of the main body 2 It consists of the outermost portions 20a and 20b arranged near the portion 2c.
That is, the brush 16 has a continuous sinusoidal wave shape on the tip surface 2b, which includes a curved portion C3 composed of three first side portions 17 and a curved portion _C4 composed of _three second side portions 18. It has a shape. The first side portion 17, the second side portion 18, the intermediate portion 19, and the outermost portions 20a and 20b are implanted in circular regions on the tip surface 2b, respectively, similar to the cleaner nozzle 1A. It consists of multiple small bundles.
The cleaner nozzle 1B configured as described above has substantially the same functions and effects as the cleaner nozzle 1A.

Note that the cleaner nozzle according to the present invention is not limited to those shown in the examples. For example, in the brush 4 of the cleaner nozzle 1, the intermediate portion 9 and the outermost portions 10a and 10b may be omitted. Also, the brushes 11 and 16 of the cleaner nozzles 1A and 1B may each be composed of tufts of bristles planted without gaps in a long and narrow rectangular area on the tip surface 2b.
Furthermore, one or more first suction pipes 5 and one or more second suction pipes 6 may be provided. In addition, the first suction pipe 5 and the second suction pipe 6 may have a length L ₃ from the tip surface 2 b equal to a length L ₄ from the tip surface 2 b of the brush 4 . In addition, the first suction pipe 5 and the second suction pipe 6 have a substantially rectangular shape on the cross section in the XY plane, a sector shape with one corner, and two corners. It may have a spindle shape with two corners, or a polygonal shape with three or more corners.

INDUSTRIAL APPLICABILITY The cleaner nozzle according to the present invention is connected to the suction pipe of the cleaner, and can efficiently suck dust and the like accumulated in the corners and narrow grooves of a room, regardless of the sweeping direction on a flat surface. It can be used as a vacuum cleaner nozzle that can immediately suck in dust that has been swept out.

DESCRIPTION OF SYMBOLS 1, 1A, 1B... Vacuum cleaner nozzle 2... Main body 2A, 2A'... Connection part 2a... Connection port 2b... Tip surface 2b ₁ ... Long side 2b ₂ ... Short side 2c... Periphery part 3... Flexible tube 3a... Suction port 3b... Fixed parts 3c, 3d... Sides 3e... Corner parts 4... Brush 4A... Small bundle 4a... Tip 4b... Base end 5... First suction pipe 5a... Suction port 5b... First peripheral surface 6... Second peripheral surface Suction pipe 6a Suction port 6b Second peripheral surface 7 First side portion 7a Tip 8 Second side portion 8a Tip 9 Intermediate portions 10a, 10b Outermost portion 11 Brush 12 First Side portion 13 Second side portion 14 Intermediate portion 15a, 15b Outermost portion 16 Brush 17 First side portion 18 Second side portion 19 Intermediate portion 20a, 20b Outermost portion 50 Corner Part 50a Floor surface 50b Wall surface 50c Linear structure 51 Flat surface 60 Vacuum cleaner nozzle 61 Flexible tube 61a Suction tube 61b First row 61c Second row 62 Brush 62a Tip 63 Body 63a... Tip face L... Reference line _C1 , _C2 ... Acute corners C3 _{, C4} ... Curved parts S, S1, S2... Gap

Claims (5)

1. A main body (2) having a connection port (2a) connected to a suction pipe of a vacuum cleaner, and a plurality of flexible tubes projecting forward from a tip surface (2b) of the main body (2) 3) and a brush (4) for cleaning a corner (50) having a linear structure (50c) formed by a floor surface (50a) and a wall surface (50b), comprising:
   The plurality of flexible tubes (3) consist of one or more first suction tubes (5) and one or more second suction tubes (6),
   The one or more first suction pipes (5) are arranged along a reference line (L) on the tip surface (2b),
   one or more of said second suction pipes (6) are arranged along said reference line (L) and alternate with said first suction pipes (5);
   said brush (4) comprises at least one or more first sides (7) and one or more second sides (8),
   The first side portions (7) are arranged outside a first peripheral surface (5b) farthest from the reference line (L) among the peripheral surfaces of the first suction pipe (5),
   The second side portion (8) is on the opposite side of the first peripheral surface (5b) across the reference line (L) among the peripheral surfaces of the one or more second suction pipes (6). and located outside the second peripheral surface (6b) farthest from the reference line (L),
   The first suction pipe (5) and the second suction pipe (6) are arranged between the second side portions (8) of the brush (4) bent in a direction orthogonal to the reference line (L). It is configured to be shorter than the first side (7) and the second side (8) so as to be able to protrude from between and between the first side (7),
   Each of the plurality of flexible tubes (3) has a suction port (5a, 6a) opening at its tip,
   Said first side (7) and said second side (8) both abut said straight structure (50c), while said inlets (5a, 6a) (7), from the tip surface (2b) of the plurality of flexible tubes (3) so as not to be blocked by the second side (8), the floor surface (50a) and the wall surface (50b); A cleaner nozzle (1) characterized in that its length is configured to be shorter than the length from said tip surface (2b) of said brush (4).
2. Said brushes (4), in addition to one or more said first sides (7) and one or more said second sides (8), comprise said first suction pipe (5) and said second One or more intermediate parts (9) arranged in the gap (S) between the suction pipe (6) of the 2. A cleaner nozzle (1) according to claim 1 .
3. The first side (7) and the second side (8) each form a straight line parallel to the reference line (L),
   A cleaner nozzle (1) according to claim 2, characterized in that said intermediate portion (9) is rectilinear perpendicular to said reference line (L).
4. Each of the plurality of flexible tubes (3) has a fixing portion (3b) fixed to the tip end surface (2b) of the main body (2), and the internal space extends from the fixing portion (3b) to the 4. A cleaner nozzle (1) according to any one of the preceding claims, characterized in that it has a tapered shape which narrows towards the suction opening (3a).
5. The vacuum cleaner according to any one of claims 1 to 4, wherein each of the plurality of flexible tubes (3) is formed with one or more corners (3e) on the cross section. Nozzle (1).
   
   

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