JP7058427B1 - Vacuum cleaner nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner nozzle capable of effectively utilizing the suction force of a vacuum cleaner and efficiently sucking fine dust or the like without scattering the dust to the surroundings. SOLUTION: A vacuum cleaner nozzle 1 has a main body 2 to which a connection port is connected to a suction pipe of the vacuum cleaner, and a plurality of flexible flexible pipes 3 protruding forward from a front end surface 2b of the main body 2. And a brush 4, and the plurality of flexible pipes 3 are composed of one or more first suction pipes 5 and one or more second suction pipes 6 alternately arranged with the first suction pipe 5. The first suction pipe 5 is arranged along the reference line L on the tip surface 2b, and the second suction pipe 6 is arranged along the reference line L and alternately with the first suction pipe 5. The brush 4 has five pieces arranged in the gap S between one or more first side portions 7, one or more second side portions 8, and the first suction pipe 5 and the second suction pipe 6. The intermediate portion 9 and the outermost 10a and 10b arranged near the peripheral portion 2c of the main body 2 are provided. [Selection diagram] Fig. 2

Description

The present invention is provided with a plurality of flexible tubes and brushes, and is related to a vacuum cleaner nozzle connected to a suction pipe of a vacuum cleaner, and in particular, efficiently sucks dust and the like accumulated in a corner of a room or an elongated groove. The present invention relates to a vacuum cleaner nozzle capable of immediately sucking out dust and the like swept out regardless of the sweeping direction on a flat surface.

Conventionally, since the vacuum cleaner head is mainly intended for cleaning a flat floor surface, the lower surface through which the suction port opens is also designed to be flat. Therefore, it is difficult to sufficiently suck dust and dirt accumulated in details having a complicated shape such as a corner of a room, fittings, furniture, a groove such as a window rail, and a long and narrow stepped portion. Therefore, a nozzle for details is sold separately as an optional item.
However, the nozzle for details as described above may be, for example, one in which the cross section of the suction port made of hard plastic is simply an elongated beak shape, or the tip openings of a plurality of suction cylinders provided on the tip surface of the nozzle. Since the brush was planted in the part, in the former case, the suction port could not correspond to the shape of the detail to be cleaned, so that the suction action did not reach the detail and there was a risk of damaging the detail. Further, in the latter case, the opening of the suction cylinder may be blocked by the brush, and the suction action may be reduced.
In order to solve such a problem, a technique related to a vacuum cleaner nozzle in which the suction cylinder and the brush are planted in a devised position has been developed, and some ideas have already been disclosed regarding it.

Patent Document 1 discloses a device under the name of "tip suction tool of an electric vacuum cleaner" regarding a tip suction tool in which the suction port can easily adapt to the shape of the detail to be cleaned and can prevent damage to the detail. ing.
The invention disclosed in Patent Document 1 is a pipe pedestal of a rectangular pedestal made of ABS resin or the like, in which a suction portion made of a pipe connector made of soft polyvinyl chloride and a hair bundle made of nylon resin or the like are alternately arranged. It is characterized in that it is arranged in a row along the longitudinal direction, and the suction portions and hair bundles arranged in this arrangement are arranged in parallel in a plurality of stages.
In the device having such a feature, since the suction portion is flexible and has abundant flexibility, it adapts well to the shape of a narrow groove, a corner portion, or the like. Further, the suction portion can be freely swung in this adapted state. Therefore, the suction part has a high suction effect of dust and dust.
Further, since the hair bundle is 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 hair bundle synergizes with the suction effect, and the cleaning effect can be enhanced.
Further, 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 possibility of damaging the object to be cleaned.

Further, Patent Document 2 discloses a device relating to a dust suction device capable of enhancing the suction action of the suction cylinder under the name of "dust suction device for vacuum cleaner".
The invention disclosed in Patent Document 2 is to attach a mounting plate having a large number of suction holes scattered at the tip of a holding case in which an insertion pipe to be inserted into a suction pipe of a vacuum cleaner is continuously provided, and this mounting plate is provided. A plurality of flexible suction tubes made of a flexible material are communicated with the suction holes and fixed in a protruding state, and a mounting rod is projected on the mounting plate at the center between the suction cylinders. It is characterized in that a brush holding tube having a brush planted at the tip thereof is fitted and fixed to this mounting rod.
In the device having such a feature, since the suction cylinder and the brush holding cylinder are separately erected, the arrangement of the hard brush does not hinder the suction action of the dust in the suction cylinder. It is possible to always exert excellent suction power.
In addition, dust that is difficult to suck up is swept out with a brush, and is further sucked from the suction cylinders arranged around it. Therefore, it is possible to accurately clean every corner of the room, the sash, the carpet, and the like.

Further, Patent Document 3 discloses a device under the name of "dust sucker for an electric vacuum cleaner", which relates to a dust sucker in which a dust sucking operation functions effectively because the surface to be cleaned can be dealt with even if it is not flat.
The invention disclosed in Patent Document 3 is provided with a suction connection port that can be connected to the suction tube of a vacuum cleaner at one end, and the other end is a dust suction body having a large diameter and a hollow inside into which a dust suction head can be inserted. A dust suction head provided with a large number of flexible suction tubes that are fitted and held in the large diameter portion of the dust suction body, and a base is fitted and mounted on the outer peripheral portion of the dust suction body so as to surround the periphery of the dust suction head. The brush implanted in the ring brush, including the ring brush, is characterized in that it is longer than the suction tube provided in the dust suction head.
In a device having such characteristics, when the dust suction head is pressed according to the condition of the surface to be cleaned, the inner suction tube surrounded by the brush of the ring brush bends freely and is expanded in all directions to open the opening at the tip. Facing the surface to be cleaned. When the dust collector is moved in this state, the dust adhering to the surface to be cleaned is aroused by the brush of the ring brush and is sucked into the dust suction body from the suction tube.
Further, since the suction tube has a small diameter, the suction speed is high, and the abducted dust can be quickly sucked and removed.

Jitsuzenpei No. 4-25641 Gazette Jikkenhei 7-12052 Gazette Jikkenhei 6-58548 Gazette

However, in the invention disclosed in Patent Document 1, since the suction portions and the hair bundles arranged in the longitudinal direction are arranged in a plurality of stages in parallel, when cleaning details such as elongated grooves and steps, the plurality of stages are used. Only a part of the suction part and the hair bundle arranged in the above reaches the details, and the suction power of the vacuum cleaner body cannot be effectively used. Therefore, it cannot be said that the suction efficiency is good.
Further, it is considered that the device disclosed in Cited Document 2 also has the same problems as described above, referring to FIG.

Further, in the invention disclosed in Cited Document 3, since a plurality of suction tubes are dispersed and arranged in a plane, the suction efficiency when cleaning the details is not good as in Cited Documents 1 and 2. There is a risk.
Further, since the ring brush is arranged so as to surround the circumference of the plurality of suction tubes, is the plurality of suction tubes deformed in various directions as shown in FIG. 3 really in contact with the details? I can't confirm whether or not. Therefore, the dust collector may be moved many times, and the cleaning time may become long.
In addition, it is possible that the ring brush will repel dust on the outside. In order for the suction tube to suck dust that has been repelled on the outside of such a ring brush, or dust that is originally present on the outside of the ring brush, the dust must pass through the ring brush. However, in reality, even if the suction tube sucks air, it is unlikely that 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 dust is scattered around the dust collector and the scattered dust cannot be efficiently sucked. And, such dust scattering and insufficient suction may occur in both details such as corners of a room and a flat surface such as a floor surface.

The present invention has been made in response to such a conventional situation, and the suction power of the vacuum cleaner can be effectively used, and fine dust and the like can be efficiently sucked in without scattering to the surroundings. It is an object of the present invention to provide a vacuum cleaner nozzle capable of quickly sucking out dust and the like swept out regardless of the sweeping direction on a flat surface.

In order to achieve the above object, the first invention comprises a main body in which a connection port is connected to a suction pipe of a vacuum cleaner, a plurality of flexible flexible pipes protruding forward from the tip surface of the main body, and a flexible tube. A vacuum cleaner nozzle with a brush, the plurality of flexible tubes consisting of one or more first suction tubes and one or more second suction tubes arranged alternately with the first suction tubes. The one or more first suction pipes are arranged along the reference line on the tip surface, and the one or more second suction pipes are arranged along the reference line and alternately with the first suction pipe. The brush comprises at least one or more first side portions and one or more second side portions, the first side portion being the first peripheral surface of the first suction tube farthest from the reference line. The second side portion is located on the outer side of the peripheral surface of the above, and is on the side opposite to the first peripheral surface of the peripheral surface of one or more second suction pipes with the reference line in between, and the reference line. It is characterized in that it is arranged on the outside of the second peripheral surface farthest from the above.

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

In the invention having the above configuration, a set of adjacent first side portions and a first suction pipe, and a set of adjacent second side portions and a second suction pipe are provided along a reference line. They are arranged alternately, and the one or more first side portions and the one or more second side portions are all arranged symmetrically with respect to the reference line.
Therefore, when the vacuum cleaner nozzle is pressed along the reference line of the vacuum cleaner nozzle against a linear structure of details such as a corner formed by a floor surface and a wall surface or a groove such as a window rail, all the first steps are taken. And the second side portion abut on the floor surface and the wall surface, respectively, and bend in the direction in which the tips of the two sides approach each other. Therefore, the tips of the first and second sides are all gathered in a linear structure of detail and arranged in a substantially linear shape.

Further, for the first and second suction pipes, the bent first side portion pushes the first suction pipe, and the bent second side portion 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. The substantially linear shape in 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 straight line along the linear structure of the details. Alternatively, it means that they are arranged in a zigzag shape along the linear structure of the details and slightly separated from each other around this linear structure. Therefore, the tips of the first and second sides and the suction ports of the first and second suction pipes are both arranged along the fine linear structure, that is, the reference line.
In such a case, the suction ports of one or more first suction pipes are not covered by the first side portions, respectively. Similarly, the suction ports of one or more second suction pipes are also not covered by the second side portions, respectively.
Therefore, in both the state where the vacuum cleaner nozzle is pressed against the linear structure and the case where the vacuum cleaner nozzle is reciprocated along this linear structure while being pressed against the linear structure, dust and the like are collected from the tips of the first and second side portions. Swept out by. At the same time, the dust and the like swept from the tips of the first and second sides are immediately sucked by the first and second suction pipes in all the swept directions.

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

Next, in the second invention, in the first invention, the brush has one or more first side portions and one or more second side portions, as well as a first suction pipe and a second suction pipe. It is characterized in that it is provided with one or more intermediate portions arranged in the gap between the two, and is arranged in a continuous shape when the front end surface is viewed from the front.
In the invention of such a configuration, the traveling shape such as whether the intermediate portion is a straight line or a curved line and the angle with respect to the reference line is not particularly limited. Therefore, the continuous shape of the brush becomes, for example, a sinusoidal shape, a zigzag shape, or a rectangular wavy shape when the tip surface is viewed from the front.

In the invention having such a configuration, in addition to the action of the first invention, the traveling shape of the intermediate portion is not particularly limited, so that the intermediate portion sweeps out dust regardless of the moving direction of the vacuum cleaner nozzle. Then, the swept out dust is sucked into the first and second suction pipes adjacent to the intermediate portion, respectively.
Further, when the vacuum cleaner nozzle is reciprocated in the direction orthogonal to the reference line, dust or the like that has passed through the side of the first side portion or the side of the second side portion by the intermediate portion is the first and first. The possibility of further slipping between the two suction pipes and reaching the outside of the second side or the first side, respectively, is reduced.

Further, in the third invention, in the second invention, the first and second side portions each form a straight line parallel to the reference line, and the intermediate portion forms a straight line orthogonal to the reference line. It is a feature.
In the invention of such a configuration, the brush has a rectangular wavy continuous shape when the tip surface is viewed from the front. Therefore, in the invention having the above configuration, in addition to the action of the second invention, when the vacuum cleaner nozzle is moved along the direction parallel to the reference line, the intermediate portions are the first side portion and the second side portion, respectively. It exerts the effect of sweeping out the dust existing between the sides particularly efficiently.

The fourth invention is characterized in that, in any one of the first to third inventions, the length from the tip surface of the plurality of flexible tubes is shorter than the length from the tip surface of the brush. ..
In the fourth invention having such a configuration, in addition to the action of any one of the first to third inventions, for example, when the vacuum cleaner nozzle is moved on the floor surface in a direction orthogonal to the reference line, the brush is used. Of these, the tips of the first and second side portions each come into contact with the floor surface and bend toward the side opposite to the traveling direction of the vacuum cleaner nozzle. However, since the lengths of the first and second suction pipes, which are a plurality of flexible pipes, are shorter than the lengths of the first and second side portions, the first and second suction pipes are used. , It is hard to bend to the first and second side parts. As a result, each suction port of the first and second suction pipes protrudes toward the traveling direction. Therefore, the first and second suction pipes can immediately suck in the dust and the like swept out by the brush in the traveling direction side.

Next, in the fifth invention, in any one of the first to fourth inventions, the plurality of flexible tubes each include a suction port that opens at the tip and a fixing portion that is fixed to the tip surface of the main body. Moreover, it is characterized in that the internal space has a tapered shape that narrows as it goes from the fixed portion to the suction port.
In the fifth invention having such a configuration, in addition to the action of any one of the first to fourth inventions, since the plurality of flexible tubes each have a tapered shape, the dust sucked from the suction port is sucked. Etc. do not clog the space inside the flexible tube.

Further, the sixth invention is characterized in that, in any one of the first to fifth inventions, the plurality of flexible tubes each have one or more corners formed on the cross section.
In the sixth invention having such a configuration, in addition to the action of any one of the first to fifth inventions, the flexible tube is prevented from being excessively bent at the corner portion. In addition, the restoring force of the bent flexible tube to return to its original linear shape is stronger at the corners than at the corners.

According to the first invention, dust and the like are first and second in both the state where the vacuum cleaner nozzle is pressed against the linear structure and the case where the vacuum cleaner nozzle is pressed against the linear structure and reciprocated along the linear structure. Swept out by each tip on the side of the. At the same time, the dust and the like swept from the tips of the first and second side portions are sucked by the first and second suction pipes in all the 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 to the surroundings, and the dust and the like can be efficiently sucked in.
Further, since the first and second suction pipes are all arranged substantially linearly along the linear structure, the suction ports of the first and second suction pipes are opened at a place away from the linear structure and not to be cleaned. do not. Therefore, according to the first invention, the suction force of the vacuum cleaner can be effectively used.
Further, even when the vacuum cleaner nozzle is brought into contact with a flat surface, the dust or the like swept out in the traveling direction is immediately sucked by the first suction pipe or the second suction pipe, and therefore, according to the first invention. For example, the dust and the like can be efficiently sucked in without scattering the dust and the like to the surroundings.
Further, according to the first invention, the distribution of these on the tip surface can be variously changed depending on the number and arrangement of the first and second suction pipes and the brushes, so that the size and shape of the object to be cleaned can be changed. It can be designed to the optimum distribution according to.

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 vacuum 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 the cleaning efficiency can be improved.
Further, when the vacuum cleaner nozzle is reciprocated in a direction orthogonal to the reference line, dust or the like may be transferred to the side of the first side portion or the side of the second side portion, and the first and second portions depending on the intermediate portion. Since the possibility of slipping through the suction pipes of the first suction pipe and reaching the outside of the second side portion or the first side portion is reduced, the first suction pipe or the second suction pipe is surely dusted or the like. It is possible to guide the flow of dust and the like so that it can be sucked in.

According to the third invention, in addition to the effect of the second invention, for example, when the vacuum cleaner nozzle is reciprocated along a direction parallel to a reference line on a plane, an intermediate portion may be used with the first side portion. Dust and the like existing between the second side portions are swept out particularly efficiently. Then, the swept out dust and the like are immediately sucked into the first and second suction pipes, respectively. Therefore, the third invention can be suitably used for cleaning a place where the vacuum cleaner nozzle can be moved only in a certain direction, such as a window rail or a gap between furniture and a wall.

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 have the first and second suction pipes while the tips thereof are in contact with the floor surface. It is hard to bend toward the side. Further, since each suction port of the first and second suction pipes protrudes on the traveling direction side of the vacuum cleaner nozzle, dust and the like are sucked by this brush even if the brush is adjacent to the first and second suction pipes. Is not disturbed. Therefore, according to the fourth invention, there is an effect that the dust and 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, dust and the like that have passed through the suction port are not clogged inside the flexible tube, so that the cleaning efficiency is high. Can be maintained.

According to the sixth invention, in addition to the effect of any one of the first to fifth inventions, the suction port thereof is prevented from being excessively bent at the corner portion of the flexible tube. It is possible to prevent the invention from not facing the object to be cleaned and the occurrence of a closing point in the middle of the flexible pipe.
Further, by providing the corner portion, the bending direction of the flexible tube can be controlled to some extent. Therefore, it is possible to uniformly align the bending directions of the plurality of flexible pipes and prevent the distribution range of each suction port from being excessively expanded.
Furthermore, since the restoring force of the corners is stronger than the restoring force of the parts other than the corners, it is easy to align the postures of the plurality of flexible pipes after restoring from bending, and the vacuum cleaner nozzles are continuously different. After moving in the moving direction, it is possible to prevent each suction port from opening in an irregular direction.

(A) is an external view of the vacuum cleaner nozzle according to the embodiment when viewed from an oblique direction, and (b) is a perspective view of a flexible tube constituting the vacuum cleaner nozzle when viewed from an oblique direction. Is. FIG. 3 is an external view of the vacuum cleaner nozzle according to the embodiment when viewed from the direction A in FIG. 1 (a). (A) is a front image taken from the front of the prototype of the vacuum cleaner nozzle according to the embodiment, (b) is a side image taken from the B direction in (a), and (c) is the side image in (a). It is a perspective image taken from the C direction. (A) to (c) are images of prototypes for explaining the operation of the vacuum cleaner nozzle according to the embodiment, respectively. (A) and (b) are external views of the vacuum cleaner nozzle according to the embodiment as viewed from the direction A in FIG. 1, and (c) is a cross-sectional view taken along the line DD in (a). , (D) is a cross-sectional view taken along the line EE in (b). (A) and (b) are images of a prototype for explaining the operation of the first and second suction pipes constituting the vacuum cleaner nozzle according to the embodiment, respectively. (A) and (b) are images of a prototype for explaining the operation of the vacuum cleaner nozzle according to the embodiment, respectively. (A) and (b) are cross-sectional views taken along the arrow at the same position as the DD line in FIG. 5 (a), respectively. (A) to (c) are images of prototypes for explaining the operation of the vacuum cleaner nozzle according to the embodiment, respectively. (A) and (b) are external views of the vacuum cleaner nozzles according to the first and second modifications of the embodiment when viewed from the direction A in FIG. 1, respectively. (A) is an external view of the vacuum cleaner nozzle according to the prior art when viewed from an oblique direction, and (b) is a side view of the vacuum cleaner nozzle according to (a) when viewed from the E direction. (A) is an external view of the vacuum cleaner nozzle according to the prior art when viewed from the F direction in FIG. 11 (b), and (b) is a cross-sectional view taken along the line GG in FIG. 11 (a). (A) is an external view of the vacuum cleaner nozzle according to the prior art when viewed from an oblique downward direction, and (b) is a cross-sectional view taken along the line OH in FIG. 12 (a). ..

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

Of the vacuum cleaner nozzles 1, the main body 2 is formed of a hard synthetic resin material, and its tip surface 2b has a rectangular shape. Further, the main body 2 includes a connection portion 2A having a substantially cylindrical shape in which the connection port 2a is opened. The direction in which the plurality of flexible tubes 3 are continuously arranged in one row is the longitudinal direction Y of the tip surface 2b, and the direction orthogonal to the longitudinal direction Y is the lateral direction X of the tip surface 2b. Further, the Z direction is orthogonal to the longitudinal direction Y and is orthogonal to the lateral direction X.
Further, the flexible tube 3 is a substantially square cylinder in which a synthetic resin material having flexibility and restoring force is formed, and four corner portions 3e (see FIG. 1B) are formed on the cross section. It is provided with a suction port 3a that opens at the tip of the flexible tube 3 and a fixing portion 3b that is embedded and fixed in the tip surface 2b.
The cross section of the flexible tube 3 means a surface parallel to the XY plane formed by the longitudinal direction Y and the lateral direction X. Further, the length L ₃ from the tip surface 2b of the plurality of flexible tubes 3 is shorter than the length L ₄ from the tip surface 2b of the brush 4. Specifically, the ratio of the length L ₃ to the length L ₄ is 9:10, but other ratios such as 7:10 and 8:10 may be used.
The brush 4 is made of a synthetic resin having an appropriate hardness and restoring force necessary for sweeping out dust and dirt, and includes a tip 4a and a base end 4b to be planted on the tip surface 2b.

Further, as shown in FIG. 1 (b), the flexible tube 3 has a tapered shape in which the space inside the flexible tube 3 narrows as it goes from the fixed portion 3b toward the suction port 3a. Specifically, on the cross section of the flexible pipe ₃ , the internal area S2 (hatched portion) at the fixed portion 3b is larger than the internal area S1 ₍ diagonal portion) at the suction port 3a.
Therefore, the dust or the like sucked from the suction port 3a does not clog the space inside the flexible tube 3 while moving to the fixing portion 3b.
Further, the flexible tube 3 has a pair of sides 3c and 3c, a pair of sides 3d and 3d orthogonal to the sides 3c and 3c, and four corner portions 3e formed by the sides 3c and 3d on the cross section. Be prepared. Specifically, the sides 3c and 3c are parallel to the reference line L, and the sides 3d and 3d are orthogonal to the reference line L. Therefore, the flexible tube 3 is prevented from being excessively bent outward along the direction _Ld in which the two diagonal lines connecting the corner portions 3e and 3e are extended.

Next, as shown in FIG. 2, the plurality of flexible pipes 3 are composed of three first suction pipes 5 and three second suction pipes 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 of the suction ports 5a opens. Further, the three second suction pipes 6 are arranged along the reference line L and alternately with the first suction pipe 5, and the suction ports 6a are opened respectively.
Here, the reference line L is parallel to the pair of long sides 2b ₁ , 2b ₁ of the tip surface 2b and the pair of short sides 2b ₂ , 2b ₂ of the tip surface 2b, both parallel to the longitudinal direction Y. It is a virtual straight line that divides into two. The ratio of the length of the long side 2b ₁ to the length of the short side 2b ₂ is configured to be, for example, 6: 1.

Further, the brush 4 has three first side portions 7 arranged closer to the peripheral edge portion 2c of the main body 2, three second side portions 8 arranged closer to the peripheral edge portion 2c, and a first one. It includes five intermediate portions 9 arranged in the gap S between the suction pipe 5 and the second suction pipe 6, and outermost 10a and 10b arranged closer to the peripheral edge portion 2c. The first side portion 7, the second side portion 8, the intermediate portion 9, and the outermost 10a and 10b are hair bundles planted in an elongated rectangular region on the tip surface 2b without any gap.
Of these, the first side portion 7 is arranged on the outer side of the first peripheral surface 5b farthest from the reference line L among the peripheral surfaces of the first suction pipe 5. Further, the second side portion 8 is on the side opposite to the first peripheral surface 5b of the peripheral surface of the second suction pipe 6 with the reference line L interposed therebetween, and is the second farthest from the reference line L. Each is arranged on the outside of the peripheral surface 6b.

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

Subsequently, the configuration of the prototype of the vacuum cleaner nozzle 1 will be described with reference to FIG. FIG. 3A is a front image of a prototype of the vacuum cleaner nozzle according to the embodiment taken from the front, and FIG. 3B is a side image taken from the direction B in FIG. 3A. (C) is a perspective image taken from the direction C in FIG. 3 (a).
As shown in FIGS. 3A to 3C, in the prototype of the vacuum cleaner nozzle 1, the first side portion 7, the second side portion 8, the intermediate portion 9, and the most constituting the brush 4 are formed. The outer surfaces 10a and 10b are each composed of a plurality of small bundles 4A planted in a small circular region on the tip surface 2b. Further, the connecting portion 2A'which has a substantially cylindrical shape is formed to be longer than the connecting portion 2A shown in FIG.

Next, the action when the vacuum cleaner nozzle is pressed against the corner will be described with reference to FIG. 4 and FIGS. 11 and 12 as comparative examples. 4 (a) to 4 (c) are images of prototypes for explaining the operation of the vacuum cleaner nozzle according to the embodiment, respectively, and FIG. 4 (a) shows the vacuum cleaner nozzle from an upward oblique direction. It is a view, and FIGS. 4 (b) and 4 (c) are viewed from the side of the suction port of the flexible tube, respectively. 11 (a) is an external view of the vacuum cleaner nozzle according to the prior art when viewed from an oblique direction, and FIG. 11 (b) is a side view of FIG. 11 (a) when viewed from the E direction. 12 (a) is an external view of the vacuum cleaner nozzle according to the prior art when viewed from the F direction in FIG. 11 (b), and FIG. 12 (b) is a view taken along the line GG in FIG. 12 (a). It is a cross-sectional view. The components shown in FIGS. 1 to 3 are designated by the same reference numerals in FIG. 4, and the description thereof will be omitted.

As shown in FIG. 4A, it is assumed that the vacuum cleaner nozzle 1 is pressed against the floor surface 50a from the upper diagonal direction against the corner portion 50 having the linear structure 50c formed by the floor surface 50a and the wall surface 50b. It shall be. At this time, when the second side portion 8 side is turned upward, the tip 8a of the second side portion 8 comes into contact with the wall surface 50b.
Further, as shown in FIG. 4B, before the vacuum cleaner nozzle 1 is pressed against the corner portion 50, the suction port 5a of the first suction pipe 5 and the suction port 6a of the second suction pipe 6 are reference. They are arranged in a 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 away from the reference line L, respectively.

On the other hand, as shown in FIG. 11A, in the vacuum cleaner nozzle 60 according to the prior art, the two suction pipes 61a are connected in series in the horizontal direction in the first row 61b and the second row 61c, respectively. A plurality of flexible pipes 61 made of the same, a brush 62 surrounding the plurality of flexible pipes 61, and a main body 63 to which the flexible pipe 61 and the brush 62 are fixed to the tip surface 63a are provided. Further, the brush 62 is fixed so as to extend in a direction perpendicular to the tip surface 63a.

Further, in the vacuum cleaner nozzle 1 according to the embodiment, from the state of FIG. 4B, the vacuum cleaner nozzle 1 is provided with a transparent corner portion 50 so that the reference line L (see FIG. 2) is aligned with the linear structure 50c. When pressed against, the tip 7a of the first side portion 7 and the tip 8a of the second side portion 8 of the brush 4 come into contact with the floor surface 50a and the wall surface 50b, respectively, and approach each other. Bend to.

Therefore, as shown in FIG. 4C, 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 linear shape. Be arranged.
Further, regarding the first suction pipe 5 and the second suction pipe 6, the first suction pipe 5 is pushed by the bent first side portion 7, and the second side portion 8 is bent. The suction pipe 6 will be pushed. Therefore, the suction ports 5a of the three first suction pipes 5 are arranged in a substantially linear shape beyond the linear structure 50c of the corner portion 50 and slightly separated from the linear structure 50c. The same applies to the suction ports 6a of the three second suction pipes 6.

Therefore, the tips 7a and 8a and the suction ports 5a and 6a are both arranged along the linear structure 50c. Specifically, the suction port 5a of the first suction pipe 5 is arranged symmetrically with the tip 7a of the first side portion 7 with the linear structure 50c interposed therebetween, and the suction port 6a of the second suction pipe 6 is arranged. Is arranged symmetrically with the tip 8a of the second side portion 8 with the linear structure 50c interposed therebetween. Therefore, the suction port 5a of the first suction pipe 5 is not covered by the first side portion 7, respectively. Similarly, the suction port 6a of the second suction pipe 6 is not covered by the second side portion 8, respectively.
Therefore, in both the state where the vacuum cleaner nozzle 1 is pressed against the linear structure 50c and the case where the vacuum cleaner nozzle 1 is reciprocated along the linear structure 50c while being pressed against the linear structure 50c, dust and the like are collected from the first side portion 7. It is swept out by the second side portion 8, the intermediate portion 9, and the outermost 10a and 10b. At the same time, the dust and the like swept out from the first side portion 7, the second side portion 8, etc. are immediately sucked by the first suction pipe 5 and the second suction pipe 6 in all the swept directions. Is done.

On the other hand, in the vacuum cleaner nozzle 60 according to the prior art, the vacuum cleaner nozzle 60 is arranged at a transparent corner portion 50 (FIG. 5) so that the first row 61b and the second row 61c are arranged along the linear structure 50c. 4), as shown in FIG. 12A, the tip 62a of the brush 62 expands in a direction parallel to the linear structure 50c and deforms so as to narrow in a direction orthogonal to the linear structure 50c.
Further, although the first row 61b and the second row 61c of the flexible pipe 61 are pushed by the narrowed brush 62 and approach each other, they are not concentrated and arranged directly above the linear structure 50c. Therefore, the vacuum cleaner nozzle 60 cannot sufficiently sweep out and suck in the dust and the like accumulated in the linear structure 50c.

Next, when the state of the vacuum cleaner nozzle 60 shown in FIG. 12 (a) is viewed from the side, as shown in FIG. 11 (b), of the tips 62 a of the brush 62, both side portions (ellipses) farthest from each other are formed. It can be seen that only the portion surrounded by) is in contact with the linear structure 50c. Similarly, as shown in FIG. 12B, the tip 62a of the brush 62 abutting on the linear structure 50c is only the portion surrounded by the ellipse shown in FIG. 12A, and the first row 61b and The second row 61c is located away from the linear structure 50c.
Therefore, even when the vacuum cleaner nozzle 60 is reciprocated along the linear structure 50c, dust and the like can be swept out only on both side portions of the brush 62. Further, since the flexible pipe 61 is not concentrated in the linear structure 50c, the flexible pipe 61 cannot sufficiently suck in the dust and the like that have been swept out.

Further, when the vacuum cleaner nozzle 60 is reciprocated along a direction orthogonal to the linear structure 50c, it is conceivable that the brush 62 repels dust or the like on the outside thereof. In order for the suction pipe 61a to suck the dust and the like repelled on the outside of the brush 62, it is necessary to repeatedly move the vacuum cleaner nozzle 60 over a wide range.
On the other hand, although not shown, even when the brush 62 is pressed against an elongated groove or step or moved along the groove, only a part of the brush 62 and a part of the plurality of flexible pipes 61 are grooved. Etc. do not reach.
Therefore, in the vacuum cleaner nozzle 60 according to the prior art, when the object to be cleaned is not a planar shape such as a corner 50 or a groove, the suction force of the vacuum cleaner body can be effectively used regardless of the moving direction of the vacuum cleaner nozzle 60. In addition to being unable to do so, dust may be scattered around it, which may increase the time required for cleaning.

Subsequently, the operation of the first and second suction pipes constituting the vacuum cleaner nozzle 1 will be described with reference to FIGS. 5 and 6. 5 (a) and 5 (b) are external views of the vacuum cleaner nozzle according to the embodiment when viewed from the direction A in FIG. 1, and FIG. 5 (c) shows D-in FIG. 5 (a). It is a cross-sectional view taken along the line D, and FIG. 5 (d) is a cross-sectional view taken along the line EE in FIG. 5 (b). 6 (a) and 6 (b) are images of prototypes for explaining the operation of the first and second suction pipes constituting the vacuum cleaner nozzle according to the embodiment, respectively. a) is a view of the vacuum cleaner nozzle from an upward oblique direction, and FIG. 6 (b) is a view of the vacuum cleaner nozzle of FIG. 6 (a) from an oblique downward direction. The components shown in FIGS. 1 to 4 are designated by the same reference numerals in FIGS. 5 and 6, and the description thereof will be omitted.
As shown in FIG. 5A, before the brush 4 is pressed against the corner portion 50, as shown in FIG. 5C, the second side portion 8 and the second suction pipe 6 are both main bodies. It protrudes straight from the tip surface 2b of 2 in the Z direction.

On the other hand, when the brush 4 is pressed against the corner portion 50, as shown in FIGS. 5 (b) and 5 (d), the tip 8a of the second side portion 8 abuts on the wall surface 50b and is straight. It bends toward the 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 bends in the same manner. As a result, the suction ports 5a and 6a project to the side away from the tip 7a of the first side portion 7 and the tip 8a of the second side portion 8 gathered in the linear structure 50c, respectively.

Actually, as shown in FIG. 6A, when the brush 4 is pressed against the corner portion 50 with the first side portion 7 side facing upward, the tip 7a of the first side portion 7 is the wall surface 50b. It comes into contact with and is collected in the linear structure 50c. 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 from the length L ₄ (see FIG. 1) from the tip 7a of the first side portion 7. The suction port 6a does not come into contact with the wall surface 50b because it is short. 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 projects outward from the first side portion 7.

Similarly, as shown in FIG. 6B, the length L ₃ from the tip surface 2b of the suction port 5a of the first suction pipe 5 is the length L ₄ from the tip 8a of the second side portion 8. Because it is shorter than, the suction port 5a of the first suction pipe 5 does not abut on 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 5a projects outward from the second side portion 8. The above is the same when the brush 4 is pressed against the corner portion 50 with the second side portion 8 side facing upward.

Further, the operation when the vacuum cleaner nozzle is moved on a plane will be described with reference to FIGS. 7 to 9 and FIG. 12, which is a comparative example. 7 (a) and 7 (b) are images of prototypes for explaining the operation of the vacuum cleaner nozzle according to the embodiment, respectively, when they are moved in a direction orthogonal to the reference line on a plane. This is a view of the vacuum cleaner nozzle from above. The components shown in FIGS. 1 to 6 are designated by the same reference numerals in FIGS. 7 to 9, and the description thereof will be omitted.
As shown in FIG. 7A, the tip 4a of the brush 4 is brought into contact with the flat surface 51, and the vacuum cleaner nozzle 1 is further moved on the flat surface 51 in the traveling direction P orthogonal to the reference line L (see FIG. 2). When this is done, the first side portions 7 at the three locations are all bent in the direction opposite to the traveling direction P. Therefore, the three second suction pipes 6 project from between the first side portions 7, respectively. Further, 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 a flat surface 51. It is not closed by, and the open state is maintained.

Therefore, as shown in FIG. 7B, when dust or the like is swept out in the traveling direction P by the first side portions 7 at the three locations, the dust or the like is as shown by the white arrow. It is quickly sucked by the suction pipe 6 of 2.
Although not shown, when the vacuum cleaner nozzle 1 is moved in the direction opposite to the traveling direction P, the dust and the like swept out by the second side portion 8 are collected between the second side portions 8. It is quickly sucked by the first suction pipe 5 protruding from the space.

Further, the operation when paying attention to the second suction pipe 6 will be described with reference to FIG. 8 (a) and 8 (b) are cross-sectional views taken along the arrow at the same position as the DD line in FIG. 5 (a), respectively.
As shown in FIG. 8A, immediately before the tip 4a of the brush 4 is brought into contact with the flat surface 51, the second suction pipe 6 projects from the tip surface 2b of the main body 2 in the Z direction.
On the other hand, as shown in FIG. 8B, when the tip 4a of the brush 4 is brought into contact with the flat surface 51 and moved toward the traveling direction P, the second side portion 8 of the bent brush 4 causes the brush 4 to be bent. , Dust, etc. (black circles in the figure) are swept out in the traveling direction P. The swept out dust or the like passes through the opened suction port 6a and is sucked into the second suction pipe 6. Similarly, when the brush 4 is moved in the direction opposite to the traveling direction P, the dust or the like swept out by the first side portion 7 passes through the opened suction port 5a and is sucked into the first suction pipe 5. Is done.

Subsequently, FIGS. 9 (a) to 9 (c) are images of prototypes for explaining the operation of the vacuum cleaner nozzle according to the embodiment, respectively, from the tip side of the brush and from the diagonally upward direction. I saw it. Of these, FIG. 9A is the one before the tip of the brush is brought into contact with the flat surface. Further, FIGS. 9 (b) and 9 (c) are obtained when the tip of the brush is moved in a direction parallel to the reference line on a plane. The components shown in FIGS. 1 to 8 are designated by the same reference numerals in FIG. 9, and the description thereof will be omitted.
As shown in FIG. 9A, 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 the same as in the case of FIG. , Neither is in a bent state.

Next, as shown in FIG. 9B, the tip 4a of the brush 4 is brought into contact with the transparent flat surface 51, and the vacuum cleaner nozzle 1 is parallel to the reference line L (see FIG. 2) on this flat surface 51. It is assumed that the vehicle is moved in the direction of travel Q. Then, since the tip 4a goes in the direction opposite to the traveling direction Q, the entire brush 4 bends.
Then, the first suction pipe 5 and the second suction pipe 6 are pushed by the bent intermediate portion 9 and the outermost 10b, and are slightly bent in the direction opposite to the traveling direction Q. However, as described above, since 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 , the suction ports 5a and 6a are closed by the flat surface 51. There is no such thing.

Therefore, as shown in FIG. 9 (c), when the brush 4 is moved toward the traveling direction Q, the intermediate portion 9 (see FIGS. 9 (a) and 9 (b)) and the outermost parts 10a and 10b Is distributed along the direction orthogonal to the traveling direction Q, so that more dust and the like can be swept out.
Further, since the suction ports 5a and 6a are opened between the five intermediate portions 9 and the outermost 10a and 10b, respectively, the five intermediate portions 9 and the outermost 10a are used in the traveling direction Q. As shown by the white arrow, the dust and the like swept out toward the middle portion 9 and the like are quickly sucked by the first suction pipe 5 and the second suction pipe 6 adjacent to the intermediate portion 9 and the like. The same applies when the brush 4 is moved in the direction opposite to the traveling direction Q.

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

Further, as shown in FIG. 13B, since there is a gap between the brush 62 and the suction pipe 61a inside the brush 62, only a part of the dust or the like swept out inside the brush 62 is present. It is sucked by the suction pipe 61a.
As described above, the vacuum cleaner nozzle 60 does not have good suction efficiency of dust and the like. Therefore, the user tries to suck in as much dust as possible and repeatedly moves the vacuum cleaner nozzle 60 back and forth along the traveling direction Q, but as described above, the brush 62 instead of dust and the like scatters over a wide area. There is a risk of causing it.

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

Further, when both the first side portion 7 and the second side portion 8 are bent, the second suction pipe 6 and the first suction pipe 5 project respectively, and as a result, the suction ports 5a and 6a are brushes 4. Since the brush 4 is open to the outside of the brush 4, even if the brush 4 is adjacent to the first suction pipe 5 and the second suction pipe 6, the brush 4 has an effect that the suction of dust and the like is not hindered. In addition, the first suction pipe 5 and the second suction pipe 6 are swept out of dust and the like swept from the tip 7a of the first side portion 7 and the tip 8a of the second side portion 8. It can be inhaled immediately in all directions.
Therefore, according to the vacuum 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 collect dust and the like. Since it can be sucked in without omission, dust and the like are not scattered around, and the time required for cleaning can be shortened.

Further, when the vacuum cleaner nozzle 1 is reciprocated on the plane 51 along the direction orthogonal to the reference line L, dust or the like swept out by the first side portion 7 and the second side portion 8 is particularly removed. Since they are sucked into the second suction pipe 6 and the first suction pipe 5 adjacent to each other along the reference line L, the vacuum cleaner nozzle 1 can also efficiently suck dust and the like.
Further, when the vacuum cleaner nozzle 1 is moved on the flat surface 51 in a direction parallel to the reference line L, dust and the like can be efficiently swept out by the intermediate portion 9 and the outermost 10a and 10b. Further, since the swept out dust and the like are quickly sucked by the first suction pipe 5 and the second suction pipe 6, it is not necessary to repeatedly move the vacuum cleaner nozzle 1 over a wide range, and it takes time and effort for cleaning. You can save time.

In addition, regardless of the moving direction of the vacuum cleaner nozzle, dust or the like that has passed through the suction port 3a does not clog the inside of the first suction pipe 5 and the second suction pipe 6, that is, the flexible pipe 3. , Cleaning efficiency can be maintained in a high state.
Further, since the flexible pipe 3 is prevented from being excessively bent outward at the four corners 3e, the suction port 3a of the flexible pipe 3 does not face the object to be cleaned, and the flexible pipe 3 is flexible. It is possible to prevent a closed portion from being generated 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, a plurality of flexible tubes 3 are formed by forming the corner portions 3e at four points at the intersections of the sides 3c and 3c parallel to the reference line L and the sides 3d and 3d orthogonal to the reference line L. Is aligned in a direction parallel to the reference line L or orthogonal to the reference line L. Therefore, it is possible to prevent the flexible tube 3 from bending regardless of the bending direction of the tip 4a of the brush 4.
Further, the restoring force of the corner portion 3e is stronger than the restoring force of the sides 3c and 3d. Therefore, the postures of the plurality of flexible pipes 3 after being restored from bending are easily aligned, and after the vacuum cleaner nozzles 1 are continuously moved in different moving directions, each suction port 3a opens in an irregular direction. Can be prevented. Therefore, even when the posture of the vacuum cleaner nozzle 1 is changed in various ways according to the shape of the object to be cleaned, dust and the like can always be efficiently sucked in.

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

The brush 11 has four first side portions 12 (hatched portion) and three second side portions 13 (diagonal portion) arranged near the peripheral edge portion 2c on the long sides 2b ₁ and 2b ₁ of the main body 2, respectively. ), 6 intermediate portions 14 (black-painted portions) arranged in the gap S between the first suction pipe 5 and the second suction pipe 6, and the peripheral edges of the short sides 2b ₂ , 2b ₂ of the main body 2. It is composed of the outermost 15a and 15b arranged closer to the portion 2c, respectively.

That is, the brush 11 has a zigzag portion on the tip surface 2b of the main body ₂ and includes an acute-angled portion C1 composed of three _first side portions 12 and an acute-angled portion C2 composed of three second side portions 13. It has a continuous shape. Alternatively, if the brush 4 of the vacuum cleaner nozzle 1 according to the embodiment of the present invention shown in FIG. 1 has a rectangular wavy shape, the brush 11 of the vacuum cleaner nozzle 1A according to the first modification has a continuous triangular wavy shape. It can be said that it is not done. The first side portion 12, the second side portion 13, the intermediate portion 14, and the outermost 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 a direction away from the reference line L, respectively. Therefore, when the first suction pipe 5 and the second suction pipe 6 are connected, a zigzag continuous shape is formed on the tip surface 2b.

In the vacuum cleaner nozzle 1A having the above configuration, for example, when the reference line L is aligned with the linear structure 50c of the corner 50 as shown in FIG. 3 and the vacuum cleaner nozzle 1A is pressed against the corner 50, the brush 11 The acute-angled portions C ₁ and C ₂ of the above bend toward the reference line L, respectively. Therefore, the first suction pipe 5 is pushed by the bent acute _- angled 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-angled portion _C2 and the intermediate portion 14 adjacent thereto. Therefore, the first suction pipe 5 and the second suction pipe 6 are arranged in a zigzag shape along the reference line L.
Therefore, dust and the like are collected in the linear structure 50c by the acute-angled portions C1 and _C2 , and _a part of the intermediate portions 14 and 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. Further, since the intermediate portion 14 is arranged so as to cross the gap S, it is possible to prevent dust and the like from scattering.
Further, when the vacuum cleaner nozzle 1A is reciprocated along the linear structure 50c, dust and the like are swept out particularly by the intermediate portion 14 and the outermost 15a and 15b. Then, the swept out dust and the like are sucked by the first suction pipe 5 and the second suction pipe 6.

Further, when the vacuum cleaner nozzle 1A is moved, for example, on the plane 51 as shown in FIG. 5 toward the traveling direction _R1 orthogonal to the reference line L, the acute-angled portion _C2 and the acute-angled portion _C2 are moved. Dust or 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 vacuum cleaner nozzle 1A is moved toward the traveling direction _R2 opposite to the traveling direction _R1 , the vacuum cleaner nozzle _1A advances by the acute-angled portion C1, the intermediate portion 14 adjacent to the acute _- angled portion C1, and the outermost portions 15a and 15b. Dust or the like swept out in the direction R ₂ is sucked by the first suction pipe 5.
Further, when the vacuum cleaner nozzle 1A is reciprocated along a direction parallel to the reference line L, dust and the like can be swept out by the intermediate portion 14 and the outermost 15a and 15b of the brush 11. Since the intermediate portion 14 and the outermost 15a and 15b are arranged so as to be inclined with respect to the reference line L, the vacuum cleaner nozzle 1A is reciprocated in any direction other than orthogonal and parallel to the reference line L. Even in this case, a lot of dust and the like can be swept out. Other than this, the action and effect of the vacuum cleaner nozzle 1A are the same as the action and effect of the vacuum cleaner nozzle 1.

Subsequently, the configuration of the vacuum cleaner nozzle according to the second modification of the embodiment will be described.
As shown in FIG. 10B, the vacuum cleaner nozzle 1B according to the second modification of the embodiment includes a brush 16 instead of the brush 4 constituting the vacuum cleaner nozzle 1 according to the embodiment. Further, the vacuum cleaner nozzle 1B includes three first suction pipes 5 and three second suction pipes 6, and the arrangement thereof is 1 along the reference line L as in the vacuum cleaner nozzle 1. Arranged in columns and alternately. Other than this, the configuration of the vacuum cleaner nozzle 1B is the same as the configuration of the vacuum cleaner nozzle 1.

The brush 16 has three first side portions 17 (hatched portion) and three second side portions 18 (diagonal portion) arranged near the peripheral edge portion 2c on the long sides 2b ₁ and 2b ₁ of the main body 2, respectively. ), Five intermediate portions 19 (black-painted portions) arranged in the gap S between the first suction pipe 5 and the second suction pipe 6, and the peripheral edges of the short sides 2b ₂ , 2b ₂ of the main body 2. It is composed of the outermost 20a and 20b arranged closer to the portion 2c, respectively.
That is, the brush 16 is a continuous sinusoidal shape having a curved portion C3 composed of three first side portions 17 and a curved portion _C4 composed of _three second side portions 18 on the tip surface 2b. It has a shape. The first side portion 17, the second side portion 18, the intermediate portion 19, and the outermost 20a and 20b were each planted in a circular region on the tip surface 2b, similarly to the vacuum cleaner nozzle 1A. It consists of multiple small bundles.
The vacuum cleaner nozzle 1B having the above configuration has almost the same operation and effect as the vacuum cleaner nozzle 1A.

The vacuum cleaner nozzle according to the present invention is not limited to the one shown in the examples. For example, in the brush 4 of the vacuum cleaner nozzle 1, the intermediate portion 9, the outermost 10a, and 10b may be omitted, respectively. Further, the brushes 11 and 16 of the vacuum cleaner nozzles 1A and 1B may each be composed of hair bundles planted without gaps in an elongated rectangular region on the tip surface 2b.
Further, one or more of the first suction pipe 5 and the second suction pipe 6 may be provided. In addition, in the first suction pipe 5 and the second suction pipe 6, the length L ₃ from the tip surface 2b may be the same as the length L ₄ from the tip surface 2b of the brush 4. In addition, the first suction pipe 5 and the second suction pipe 6 have a fan shape in which one corner is formed in addition to the substantially rectangular shape on the cross section on the XY plane. It may have a shape such as a spindle shape in which the corners of the eggplant are formed, or a polygon in which three or more corners are formed.

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

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 ... Peripheral part 3 ... Flexible tube 3a ... Suction port 3b ... Fixed part 3c, 3d ... Side 3e ... Corner part 4 ... Brush 4A ... Small bundle 4a ... Tip 4b ... Base end 5 ... First suction pipe 5a ... Suction port 5b ... First peripheral surface 6 ... Second Suction pipe 6a ... Suction port 6b ... Second peripheral surface 7 ... First side part 7a ... Tip 8 ... Second side part 8a ... Tip 9 ... Middle part 10a, 10b ... Outermost 11 ... Brush 12 ... First Side part 13 ... Second side part 14 ... Middle part 15a, 15b ... Outermost 16 ... Brush 17 ... First side part 18 ... Second side part 19 ... Middle part 20a, 20b ... Outermost 50 ... Corner Part 50a ... Floor surface 50b ... Wall surface 50c ... Linear structure 51 ... Flat surface 60 ... Vacuum cleaner nozzle 61 ... Flexible pipe 61a ... Suction pipe 61b ... First row 61c ... Second row 62 ... Brush 62a ... Tip 63 ... Main body 63a ... Tip surface L ... Reference line C ₁ , C ₂ ... Sharp angled part C ₃ , C ₄ ... Curved part

Claims (5)

A straight line made by a floor surface and a wall surface , comprising a main body to which a connection port is connected to a suction pipe of a vacuum cleaner, and a plurality of flexible flexible pipes and brushes protruding forward from the tip surface of the main body. A vacuum cleaner nozzle used to clean corners with a structure .
The plurality of flexible pipes are composed of one or more first suction pipes and one or more second suction pipes.
One or more of the first suction tubes are arranged along a reference line on the tip surface.
One or more of the second suction pipes are arranged along the reference line and alternately with the first suction pipe.
The brush comprises at least one or more first sides and one or more second sides.
The first side portion is arranged on the outer side of the first peripheral surface of the peripheral surface of the first suction pipe, which is the farthest from the reference line.
The second side portion is on the side opposite to the first peripheral surface of the peripheral surface of one or more of the second suction pipes with the reference line interposed therebetween, and is the second farthest from the reference line. It is placed on the outside of the peripheral surface of
The first suction pipe and the second suction pipe are formed between the second side portions of the brush bent in a direction orthogonal to the reference line and between the first side portions, respectively. It is configured to be shorter than the first side portion and the second side portion so as to be projectable .
Each of the plurality of flexible pipes has a suction port that opens at the tip, and also has a suction port.
While the first side portion and the second side portion both abut on the linear structure, the suction port is the first side portion, the second side portion, the floor surface, and the wall surface. A vacuum cleaner nozzle characterized in that the length of the plurality of flexible tubes from the tip surface is shorter than the length of the brush from the tip surface so as not to be closed by the brush . The brush is one or more arranged in the gap between the first suction pipe and the second suction pipe in addition to one or more of the first side portions and one or more of the second side portions. The vacuum cleaner nozzle according to claim 1 , further comprising an intermediate portion of the above, wherein the nozzles are arranged in a continuous shape when the tip surface is viewed from the front. The first and second side portions form a straight line parallel to the reference line, respectively.
The vacuum cleaner nozzle according to claim 2 , wherein the intermediate portion has a linear shape orthogonal to the reference line. Each of the plurality of flexible tubes is provided with a fixing portion fixed to the tip surface of the main body, and is characterized in that the internal space has a tapered shape that narrows as the fixing portion toward the suction port. The vacuum cleaner nozzle according to any one of claims 1 to 3 . The vacuum cleaner nozzle according to any one of claims 1 to 4 , wherein each of the plurality of flexible tubes has one or more corners formed on the cross section.

Images