KR20020076253A - Suction attachment with a corner having a secondary suction opening - Google Patents

Abstract

The present invention relates to a suction attachment 9 for a vacuum cleaner. The suction attachment comprises a housing 11 with two edges 43, 45 surrounding the angle at the corners. The first inlets 55, 59 extend along the bottom edge 57 of the suction attachment along each of the two edges, the first inlet being connected to a suction channel 7 of the vacuum cleaner. Is connected to. The first suction port leads to a second suction port 61 close to the corner portion. According to the invention, the suction attachment 9 comprises at least two suctions 35, 37, the two edges 43, 45, the two first suction ports 55, 59 and the second The inlet 61 is provided at the first inlet 35 of the inlet 35 and at least the second inlet 37 of the inlet 37 is provided with inlets 67, 69, 71, which are connected from the connecting channel 21. Can be blocked. By blocking the suction port of the second suction part from the connecting channel, the suction force of the suction unit 7 is partially or completely concentrated at the suction port of the first suction part. Therefore, a relatively high suction force is obtained at the corner portion of the first suction part where the second suction port 71 is located. Thus, the corner part allows a relatively high cleaning effect to be achieved in a narrow area or corner of the surface 5 to be cleaned. In a preferred embodiment, the suction attachment 9 comprises two suctions 35, 37 which jointly form the foot 39, which foot can rotate about the central portion 31 of the suction attachment. . Both suctions comprise corners with second suctions 61, 71 for cleaning narrow areas or corners of the surface 5 to be cleaned. The suction force of the suction unit 7 can be concentrated on each of the two suction portions by rotating the foot from the first position by + 90 ° and -90 °, respectively, about the center.

Description

SUCTION ATTACHMENT WITH A CORNER HAVING A SECONDARY SUCTION OPENING}

Suction attachments and vacuum cleaners of the type mentioned in the description are known from EP-A-0 930 041. Known suction attachments have a triangular housing. The two edges are the two front edges of the suction attachment, which enclose at an angle of about 90 degrees. Thus, the housing has a pointed end facing forward when viewed in the direction of movement of the suction attachment. The first suction port extending along the front edge is connected to the connecting channel in the form of a channel, which comprises a coupling member in the form of a pipe, through which the suction attachment can be coupled to the suction tube of the vacuum cleaner. The first inlets abut one another at the pointed ends of the housing, at this point leading to a second inlet formed at the pointed ends of the housing. In operation, the first inlet is used to clean a relatively large floor area and the suction attachment moves in the direction of movement over the floor area. The second inlet is used to clean narrow areas and corners. The second inlet is provided at the pointed end of the housing, the angle surrounded by the front edge is about 90 degrees, in particular the corners are easily reached by the second inlet.

A disadvantage of known suction attachments and known vacuum cleaners is that the overall suction force of the suction attachment is divided between the first and second suction ports. Thus, the suction force close to the second suction port is relatively small, so that the cleaning effect of known suction deposits is limited in narrow areas and corners.

The present invention relates to a suction attachment for a vacuum cleaner, the suction attachment comprising a housing having two edges surrounding a corner, and a bottom portion of the suction attachment along each of the two edges. A first suction port extending to the first suction port, which is connected to a connecting channel that can be coupled to the suction unit of the vacuum cleaner, the first suction port leading to a second suction port close to the corner.

The invention also relates to a vacuum cleaner comprising a housing in which an electrical suction unit is housed, a suction attachment that can be coupled to the suction unit via a suction channel, the suction attachment having a housing having two edges surrounding a corner, A first suction port extending along the bottom of the suction attachment along each of the two edges, the first suction port being connected to a connecting channel that may be connected to the suction channel, the first suction port being a second suction port close to the corner; Through.

1 shows schematically a vacuum cleaner according to the invention;

FIG. 2 shows a suction attachment according to the invention used in the cleaner shown in FIG. 1. FIG.

3A is a bottom view of the insert attachment when the rotatable foot of the suction attachment is in the first position, as shown in FIG. 2.

3B is a bottom view of the insert attachment when the rotatable foot is in the second position, as shown in FIG. 2.

4 is a schematic cross sectional view taken on the IV-IV line of FIG. 3A;

5A-5D schematically show a suction attachment when the rotatable foot is in four different positions, as shown in FIG.

It is an object of the present invention to provide a suction attachment and a vacuum cleaner of the type mentioned at the outset, wherein the total suction force of this suction attachment is similar to the total suction force of the existing suction attachment, but a larger suction force can be obtained near the second suction port. .

To this end, the suction attachment according to the invention comprises at least two suctions, the two edges, the two first suction ports and the second suction holes being the first suctions of the suction parts. A suction port, which is provided in the part, and at least the second suction part of the suction part can be blocked from the connecting channel.

To achieve this object, the vacuum cleaner according to the invention is characterized in that the suction attachment used here is the suction attachment according to the invention.

With regard to the suction attachment according to the invention, the overall size of the suction portion and the suction inlets present therein is similar to the size of existing suction attachments such as the suction attachments mentioned above and the suction inlets present therein. In the suction deposit according to the present attachment, the total suction force is spread over the suction part. Since at least the suction port of the second suction part can be blocked from the connecting channel, the overall suction force can be partially or wholly concentrated on the first suction part. Since the size of the first suction unit and the first and second suction ports present here is substantially smaller than the total size of the suction unit and the suction ports present here, if the total suction force is concentrated on the first suction unit, the total suction force is all suction. A suction force greater than the suction force that can be obtained in the vicinity of the suction port when spreading in the part can be obtained in the vicinity of the first and second suction ports of the first suction part. In this way, an increased suction force can also be obtained near the second suction port, so that applying the second suction port to the narrow area and the corner has a better cleaning effect.

A specific embodiment of the suction attachment according to the invention is characterized in that the connecting channel forms a central portion of the suction attachment, the two suctions extending substantially perpendicular to the virtual plane on which the suction attachment is placed on the surface to be cleaned during operation. And a foot capable of rotating about a central portion about the axis of rotation, wherein the suction port of the second suction portion can be blocked from the connecting channel by rotating the foot about the axis of rotation. Since the suction port of the second suction part can be shut off from the connecting channel by rotating the foot about the rotation axis, the suction force can be concentrated in the first section through a relatively simple motion of the user. Since the foot is relatively large, the mechanical torque required to rotate the foot is obtained by applying a relatively small force to the foot. Because the axis of rotation extends substantially perpendicular to the imaginary plane, when the foot rotates about the axis of rotation, the orientation of the center portion that allows the suction attachment to engage the vacuum cleaner does not substantially change with respect to the surface to be cleaned. You can do that. Through this means, the ease of using suction attachments is substantially increased.

A further embodiment of the suction attachment according to the invention is provided in which the two suction parts are identical, and the suction port of the first suction part and the suction port of the second suction part are respectively moved from the first position to the second position and from the first position to the third position. It can be cut off from the connection channel by rotating the foot about the axis of rotation. In this further embodiment, both suctions of the suction attachment have a first suction port leading to a second suction port near a corner surrounded by two edges. Rotating the foot to the second position blocks the inlet of the first inlet from the connection channel, thereby concentrating suction forces on the first and second inlets of the second inlet. Rotating the foot to the third position causes the suction port of the second suction section to be disconnected from the connecting channel, thereby concentrating suction forces on the first and second suction ports of the first suction section. Through this, the suction attachment has many applications.

Another embodiment of the suction attachment according to the invention is that in the first position, the two suction portions lie on either side of the center when viewed in the direction of the width perpendicular to the direction of movement of the suction attachment, the corner being of width Viewed in the direction, the second suction port has two inlets forming the end of the foot, while the foot rotates by an angle of + 90 ° and -90 ° relative to the first position in the second and third positions, respectively. do. When viewed in the width direction, the two corners form the ends of the foot, the foot rotates by an angle of + 90 ° and -90 ° relative to the first position in the second and third positions, respectively, and the suction force is zero. In the second position, concentrated in the second suction section, the corner with the second suction port of the second suction section faces forward when viewed in the moving direction, while in the third position in which the suction force is concentrated in the first suction section, When the corner with the second suction port of the first suction portion is directed forward. In this way, by using the suction force concentrated in one of the suction portions, the narrow area or corner to be cleaned can be reached by moving the suction attachment toward the narrow area or corner in the existing direction of movement. This further improves the ease of using suction attachments.

A specific embodiment of the suction attachment according to the invention comprises a substantially semi-cylindrical shut-off member arranged concentrically with respect to the axis of rotation and a connecting duct through which the connecting channel passes. The connecting pipe is arranged next to the blocking member and extends parallel to the width direction when viewed in a direction parallel to the moving direction, connecting the first inlet port and the connecting channel of the two suction portions at the first position. In the second position, the first suction port of the second suction part is connected to the connection channel, and the blocking member blocks the first suction port of the first suction part from the connection channel, while the third position is connected to the first suction port of the first suction part. The channel is connected, and the blocking member blocks the first suction port of the second suction part from the connection channel. By using the substantially semi-cylindrical blocking member and the connecting tube, in a practical and simple manner from a manufacturing point of view, the two suctions can be disconnected from or connected to the connecting channel by rotating the foot about the axis of rotation. have.

A further embodiment of the suction attachment according to the invention is that the two edges of each suction part jointly surround a corner of a relatively small and sharp angle, while the edge of the first suction part and the edge of the second suction part are relatively blunt corners. Surround the joint. Since the two edges of each suction part jointly surround a relatively small and sharp angled corner, the suction attachment can be used particularly suitably for cleaning narrow areas with suction forces concentrated at one of the corners. Since the edges of the first suction portion and the second suction portion jointly surround the relatively blunt corners, the adjacent edges of the first and second suction portions are particularly suitable for cleaning straight walls or baseboards in the first position of the foot. Can be used.

These and other aspects of the invention will be apparent from and elucidated with reference to the embodiment (s) described below.

As shown schematically in FIG. 1, a vacuum cleaner according to the present invention is called a cylinder vacuum cleaner, and includes a housing 1 that can move using a plurality of wheels 3 on a surface 5 to be cleaned. Include. The housing 1 houses an electrical suction unit 7, which is only shown schematically in FIG. 1. The vacuum cleaner further comprises a suction attachment 9 according to the invention, which suction housing has a housing 11. In the operating position shown in FIG. 1, the suction attachment is placed on the surface 5 to be cleaned at the virtual bottom 13 position, and this suction attachment 9 is placed on the surface 5 to be cleaned by the user. Must be moved in the moving direction (X). The suction attachment 9 is detachably connected to the housing 1 of the vacuum cleaner via a suction channel 15, which suction channel 19 can be bent with the metal suction tube 17. It includes. The suction attachment 9 comprises a tubular connection channel 21 through which the suction attachment 9 is removably connected to the suction pipe 17, while the suction pipe 17 is attached to the suction hose 19. The tubular handle 23 is detachably connected, and the suction hose 19 is detachably connected to the inlet 25 of the housing 1 of the vacuum cleaner. The inlet 25 communicates with a dust chamber 27 of the housing 1, which is connected to the suction unit 7 via a filter 29. In operation, the suction unit 7 creates an underpressure in the suction attachment 9 via the dust chamber 27 and the suction channel 15 and under this influence the dust on the surface 5 to be cleaned. The debris particles are sucked into the dust chamber 27, which is collected in a replaceable dust bag through the inlet and suction channel 15 of the suction attachment 9, as will be described later.

The suction attachment 9 according to the invention is shown in detail in FIG. 2. The suction attachment 9 has a central portion 31 comprising a connecting channel 21. The central portion 31 further includes a substantially cylindrical portion 33. The suction attachment 9 further comprises a second suction part 37 which is substantially the same as the first suction part 35. The two suction sections 35, 37 extend in the cylindrical section 33 about the axis of rotation 41 which extends substantially perpendicular to the direction of movement X and extends substantially perpendicular to the virtual floor surface 13. Journal-joined feet 39 are jointly formed to be able to rotate relative to each other. The first suction part 35 has a front edge 43 and a rear edge 45, which is surrounded by a relatively small and sharp angle α, while the second suction part 37 is connected with the front edge 47. It has a rear edge 49, which surrounds substantially the same angle α. The front edge 43 of the first suction part 35 and the front edge 47 of the second suction part 37 surround a relatively large and blunt angle β, while the rear edge of the first suction part 35 is provided. 45 and the rear edge 49 of the second suction portion 37 surround this same angle β. In the example shown, angle α is about 30 ° and angle β is about 150 °. Thus, the foot 39 is substantially diamond shaped and is substantially symmetrical with respect to the first axis of symmetry 51 passing through both angles α and the second axis of symmetry 53 passing through two angles β. 2 shows the foot 39 in a first position relative to the central part 31, wherein the two suctions 35, 37 are in the width direction Y perpendicular to the movement direction X and the axis of rotation 41. ), Which is located on either side of the central portion 31, and the two angles α form an end portion of the foot 39 when viewed in the width direction Y direction.

3A is a bottom view of the suction attachment 9 with the foot 39 in a first position relative to the central portion 31 as described above. As shown in FIG. 3A, the first suction part 35 includes a first channel-shaped first suction hole 55 extending along the front edge 43 at the bottom 57 of the foot 39. And a first inlet 59 in the shape of a second channel extending along the rear wall 45 at the bottom 57. The first inlets 55, 59 meet near the corner of the first inlet 35, where the two first inlets 55, 59 are directed to the second inlet 61 of the first inlet 35. In turn, the second suction port extends to the side edge 63 of the first suction part 35, connecting the front edge 43 and the rear edge 45. Near the center 31, the two first inlets 55, 59 are connected to each other via a transverse channel 65 provided on the bottom 57. Similarly, the second intake 37 comprises a first inlet 67 in the form of a first channel extending along the front edge 47 of the bottom 57 and the rear edge 49 of the bottom 57. And a first inlet 69 in the shape of a second channel extending along). The first inlets 67 and 69 meet near the corner of the second inlet 37, where the two first inlets 67 and 69 are directed to the second inlet 71 of the second inlet 37. In turn, the second suction port extends to the side edge 73 of the second suction part 37, connecting the front edge 47 and the rear edge 49. Near the center 31, the two first inlets 67, 69 are connected to each other via a lateral channel 75 provided in the bottom 57. 3A and 4, parallel to the width direction Y, with a substantially semi-cylindrical blocking member 77 arranged concentrically with respect to the axis of rotation 41 and extending substantially to the virtual bottom surface 13. Connecting tube 79 having an opening 81 through which connecting channel 21 extends, and a relatively narrow dam 83 extending substantially up to the virtual surface 13. Are arranged adjacent to each other on the cylindrical portion 33 of the central portion 31 when viewed in a direction parallel to the.

As shown in FIG. 3A, in the first position of the foot 39 with respect to the central portion 31, the connecting pipe 79 is connected to the first suction port 55, 59 and the second suction of the first suction part 35. All of the first suction ports 67, 69 of the part 37 are connected to the connecting channel 21 via the opening 81, so that the total suction force of the suction unit 7 is determined by the first suction part 35. It spreads to the first and second suction ports 55, 59, 61 and the first and second suction ports 67, 69, 71 of the second suction part 37. In the first position of the foot 39, the two suction parts 35, 37 are located on either side of the central part 31 when viewed in the width direction Y, and the total suction force is two suction parts 35, 37. Since the suction deposit 9 is in this position, it is suitable for cleaning a relatively large floor area by moving the suction deposit 9 in the movement direction X at this position. FIG. 3B shows the second position of the foot 39 with respect to the central portion 31, the foot 39 being positioned at the user by an angle of about 90 ° about the axis of rotation 41 from the first position shown in FIG. 3A. Rotate by. As shown in FIG. 3B, in this second position, the first suction port 67, 69 and the second suction port 71 of the second suction part 37 are connected through the connecting pipe 79 and the opening 81. The channel 21 is connected. In this second position, the first suction ports 55, 59 and the second suction ports 61 of the first suction part 35 are connected to the connection pipe 79 and the connection channel by the semi-cylindrical blocking member 77. 21). Therefore, the total suction force of the suction unit 7 is concentrated in the second suction part 37 and spreads only to the first suction ports 67 and 69 and the second suction port 71 of this suction part 37. In the second position of the foot 39, the corner of the second suction portion 37 faces forward when viewed in the direction of movement X, so that the suction attachment 9 is sucked in the existing direction of movement X in this position. By moving the attachment 9 it can be suitably used for cleaning narrow areas or corners. Since the total suction force is concentrated in the second suction unit 37, the suction force provided near the first suction ports 67 and 69 and the second suction port 71 is such that the suction port 67 (at the first position of the foot 39) is provided. 69,71) much greater than the suction provided near. Thus, the inhalation deposit 9 exhibits a relatively good cleaning effect, especially in the corners and narrow areas where only the inhalation attachment 9 can be accessed in part. The user can rotate the foot 39 about the axis of rotation 41 in a relatively simple way, which takes little force into consideration when the foot 39 is large in size. Since the axis of rotation 41 extends perpendicular to the virtual bottom surface 13, the orientation of the central part 31 and the connecting channel 21 is almost in relation to the bottom surface 5 to be cleaned when the foot 39 rotates. Not changing, the position of the suction pipe 17 also does not substantially change. Due to this property, the suction attachment 9 is very easy to use. Since the angle α surrounded by the front edge 47 and the rear edge 49 is relatively small, the suction attachment 9 can be used particularly suitably for cleaning a relatively narrow area in the second position of the foot 39. Since the angle β surrounded by the two front edges 43 and 47 is relatively large, the adjacent front edges 43 and 47 are particularly suitable for cleaning straight walls or baseboards in the first position of the foot 39. Can be.

The above described first and second positions of the foot 39 with respect to the central portion 31 are schematically illustrated in FIGS. 5A and 5B. The foot 39 can also be rotated through the user by an angle of -90 ° about the axis of rotation 41 from the first position shown in FIG. 5A to the third position shown schematically in FIG. 5C, as shown in FIG. 5D. It may rotate by 180 ° about the rotation axis 41 to the fourth position shown by. As can be inferred from FIGS. 3A and 3B, in the third position of the foot 39, the first suction ports 55, 59 and the second suction port 61 of the first suction part 35 are connected to the connecting pipe ( 79 and opening 81 are connected to connecting channel 21. In the third position, the first suction ports 67 and 69 and the second suction ports 71 of the second suction unit 37 are connected to the connecting pipe 79 and the connecting channel 21 by a semi-cylindrical blocking member 77. Is blocked). Therefore, the total suction force of the suction unit 7 is concentrated in the first suction part 37 at the third position of the foot 39, and the first suction ports 55 and 59 and the first suction part of the first suction part 35 are formed. 2 only spreads to the inlet 61. In the third position of the foot 39, the corner of the first suction part 35 faces forward as seen in the direction of movement X, so that the suction attachment in the existing position of movement X in this position as well as in the first position. By moving (9), the suction attachment 9 can be suitably used to clean narrow areas or corners by concentrated suction force. As can be inferred from FIGS. 3A and 3B, in the fourth position of the foot 39, the connector 79 is connected to the first and second suction ports 55 and 59 and the second suction part of the first suction part 35. By connecting all of the first suction ports 67 and 69 of the 37 to the connecting channel 21 through the opening 81, the total suction force of the suction unit 7 is determined by the first and the first suction ports of the first suction unit 35. It spreads to the 2nd suction port 55,59,61 and the 1st and 2nd suction port 67,69,71 of the 2nd suction part 37. As shown in FIG. Thus, by moving the suction attachment 9 in the existing direction of movement X in the first position as well as the fourth position of the foot 39, the suction attachment 9 is suitably used to clean a relatively large floor area. Can be. The foot 39 may rotate from -1 ° to + 90 ° from the first position to a position (where the suction force is concentrated on the suction portions 35, 37 facing forward in the existing direction of movement X). As it can, not only the ease of using the suction attachment 9, but also the applicability increases.

As shown in FIG. 3A, the suction attachment 9 further comprises four brushes 85, 87, 89, 91 in the illustrated embodiment, the four brushes having a front edge 43 and a first suction port. 55, the bottom 57 between each of the rear edge 45 and the first inlet 59, the front edge 47 and the first inlet 67, the rear edge 49 and the first inlet 69. Is also provided. Brushes 85, 87, 89, 91 are provided in the lifting mechanism and are not shown in detail in the drawing, which lifting mechanism is the first of the foot 39 shown in FIGS. 5A and 5B. And brushes 85,87,89,91 enter the bottom 57 at the second position and protrude from the bottom 57 at the third and fourth positions of the foot shown in FIGS. 5C and 5D. Work with the cylindrical part 33 in a manner. To illustrate this joint action, the brushes 85,87,89,91 are shown only in FIGS. 5C and 5D in broken lines. In the first and second positions of the foot 39, the suction attachment 9 can be suitably used for cleaning the carpet, and in the third and fourth positions of the foot 39, suitably for cleaning the soft floors. Can be used. It should be noted that the suction attachment 9 preferably has a locking mechanism with an open button, through which the foot 39 can be locked and opened respectively at each of the four positions.

The vacuum cleaner according to the present invention is a cylindrical vacuum cleaner, as described above. It should be noted that the present invention also includes other types of vacuum cleaners, for example vertical vacuum cleaners. In such vertical vacuum cleaners, for example, the suction attachment is pivotally coupled to the housing of the vacuum cleaner and the housing of the vacuum cleaner is in a substantially vertical position when in the operating position.

It should also be noted that the present invention also includes a suction attachment that includes two or more suction portions. The present invention includes a suction attachment including a suction attachment having a suction portion each having a corner with a second suction aperture, and a suction attachment including a suction portion having a corner with a second suction aperture, but not all. In all such embodiments, the suction force is at least one suction part having a corner with a second suction port, in whole or in part, by closing the suction port (or suction ports) of at least one of the other suction part or the other suction part. Can be concentrated.

In addition, the present invention provides a suction attachment in which a first suction port existing along two edges of the first suction unit is combined to form one first suction port, or two or more first suction ports are provided in the first suction unit. It should be noted that it includes.

Finally, it should be noted that the present invention also includes a suction attachment that is implemented such that at least one suction of the suction can be blocked in a different manner than rotating the suction about the center of the suction attachment. For example, in the present invention, the intake is arranged in a fixed position with respect to the connecting channel, and at least one of the intakes is connected via a valve or other blocking mechanism (which can be operated by the user via a button, for example). It includes embodiments that may be blocked from the channel.

As mentioned above, the present invention provides a suction attachment and a vacuum cleaner of the type mentioned in the description, wherein the suction attachment and the vacuum cleaner have a total suction force of the suction attachment similar to that of the existing suction attachment, but more in the vicinity of the second suction opening. It is effective to obtain a large suction force.

Claims (7)

A housing with two edges surrounding the corner, A vacuum cleaner comprising a first suction port extending along a bottom of the suction attachment along each of the two edges and connected to a connecting channel that can be coupled to the suction unit of the vacuum cleaner and leading to a second suction port close to the corner As a suction attachment for The suction attachment comprises at least two suctions, The two edges, the two first suction ports, and the second suction port are provided at a first suction part of the suction part, and at least a second suction part of the suction parts includes a suction port which can be blocked from the connection channel. Suction attachment for vacuum cleaners, characterized in that The center of the apparatus of claim 1, wherein the connecting channel forms a central portion of the suction attachment, and the two suction portions are centered about an axis of rotation extending substantially perpendicular to an imaginary plane in which the suction attachment is placed on a surface to be cleaned during operation. A foot that is rotatable relative to the suction port, wherein the suction port of the second suction unit can be disconnected from the connection channel by rotating the foot about the axis of rotation. attachment. The rotating shaft of claim 2, wherein the two suction parts are the same, and the suction port of the first suction part and the suction port of the second suction part are respectively moved from a first position to a second position and from a first position to a third position. A suction attachment for a vacuum cleaner, characterized in that it can be blocked from the connection channel by rotating the foot around. 4. The apparatus of claim 3, wherein in the first position, the two suction portions lie on either side of the center when viewed in the direction of the width perpendicular to the direction of movement of the suction attachment, and the corner is viewed in the direction of the width. When the second suction port of the two suction portions forming an end of the foot, the foot is + 90 ° and -90 ° relative to the first position in the second and third positions, respectively. Suction attachment for a vacuum cleaner, characterized in that rotated by an angle. The method of claim 4, wherein the central portion A substantially semi-cylindrical shut-off member concentrically arranged with respect to the axis of rotation, The connecting channel is in communication with the blocking member and is arranged next to the blocking member when viewed in a direction parallel to the moving direction, and extends in parallel with the width direction, the first suction port and the connecting channel of the two suction portions at the first position. And a connecting duct connecting the first suction port and the connection channel to the second suction part at the second position. The blocking member blocks the first suction port of the first suction part from the connection channel, while in the third position, the connecting tube connects the first suction port and the connection channel of the first suction part, And the member blocks the first suction port of the second suction part from the connecting channel. 5. The device of claim 4, wherein the two edges of each suction portion collectively surround a corner of a relatively small and sharp angle, while the edge of the first suction portion and the edge of the second suction portion share a corner of a relatively blunt angle. A suction attachment for a vacuum cleaner, characterized in that surrounded by. A vacuum cleaner comprising a housing containing an electrical suction unit, and a suction attachment that can be coupled to the suction unit through a suction channel, the suction attachment having a housing having two edges surrounding a corner, and the two edges. A first suction port extending along the bottom of the suction attachment along each one, the first suction port connected to a connecting channel connectable to the suction channel, the first suction port being a second suction port close to the corner; As a vacuum cleaner to go through, Said suction attachment is a suction attachment as described in any one of Claims 1-6, The vacuum cleaner characterized by the above-mentioned.