JP2013248194A - Nozzle device for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nozzle device for a vacuum cleaner with which a floor surface can be satisfactorily wiped clean without making a wipe-cleaning sheet tilt or drop.SOLUTION: A nozzle device 3 for a vacuum cleaner includes a nozzle 8 connected to a cleaner body 2 and a wipe-cleaning plate 9 detachably mounted on the lower surface of the nozzle 8, the nozzle 8 is provided with a connection part 29, the wipe-cleaning plate 9 is provided with a connection part 42, the connection part 29 and the connection part 42 are detachably connected to each other, and a wipe-cleaning sheet 35 is detachably held between the wipe-cleaning plate 9 and a floor surface F as a surface to be cleaned. By providing a magnet member 40 to the connection part 42 and providing a steel plate 28 as a magnetic body to the connection part 29, even when the floor surface F is cleaned without mounting the wipe-cleaning plate 9 onto the nozzle 8, staples or clips or the like do not enter between the magnet member 40 and the steel plate 28, and the wipe-cleaning plate 9 can be attached in a correct attitude.

Description

  The present invention relates to a cleaner nozzle device, and more particularly to a cleaner nozzle device suitable for floor cleaning.

  Conventionally, as this type of nozzle device for a vacuum cleaner, a dust suction unit (corresponding to the nozzle of the present invention) coupled to a suction hose (corresponding to the connecting pipe of the present invention) of a vacuum cleaner, It consists of a wiping unit that is detachably mounted with a clearance for dust absorption at the lower surface opening. This wiping unit is mounted on a hard plate (corresponding to the wiping plate of the present invention) and the lower surface of the hard plate. The wiping sheet is configured to form a locking portion that is detachably engaged with the wiping unit and the dust suction unit, and a magnet is provided on the locking portion of the dust suction unit, The thing provided with the magnetic body in the stop part is known. (For example, refer to Patent Document 1). And such a nozzle device for vacuum cleaners can attach or detach the said wiping unit easily with respect to the said dust absorption unit by magnetizing the said magnetic body to the said magnet.

Japanese Utility Model Publication No. 63-19005

  However, in such a nozzle device for a vacuum cleaner, since the magnet is provided in the vicinity of the lower surface opening of the dust suction unit, when the floor surface is cleaned with the wiping unit removed, the magnet fell on the floor. There is a risk that staples, clips, and the like may adhere to the magnet. And, when the wiping unit is attached to the dust suction unit in a state where staples, clips, etc. are magnetically attached to the magnet in this way, the wiping unit is attached in a tilted state or dropped, There was a problem that cleaning could not be performed normally. Further, when the wiping unit is not used, the wiping unit is removed from the dust suction unit, but there is a possibility that the removed wiping unit may be lost.

An object of the present invention is to solve the above problems and to provide a nozzle device for a vacuum cleaner that can clean a floor surface normally. Moreover, an object of this invention is to provide the nozzle apparatus for vacuum cleaners which is hard to lose a wiping plate.

  The nozzle device for a vacuum cleaner according to claim 1 of the present invention includes a nozzle connected to a cleaner body, and a wiping plate that is detachably attached to a lower surface of the nozzle, and the wiping plate In the nozzle device for a vacuum cleaner, the wiping plate is provided with coupling portions that are detachably coupled to the nozzle, and a wiping sheet is detachably held between the wiping plate and a surface to be cleaned. A magnet member is provided at the coupling portion, and a magnetic body magnetically attached to the magnet member is provided at the coupling portion of the nozzle.

  Moreover, the nozzle device for vacuum cleaners of Claim 2 of this invention is a state in which only the said wiping plate was attached to the said nozzle in Claim 1, and the lower end of the said wiping plate is a front floor of the said nozzle. It is located above the plane connecting the surface contact point and the rear floor contact point.

  A vacuum cleaner nozzle device according to a third aspect of the present invention is the vacuum cleaner nozzle device according to the first or second aspect, wherein the coupling portion of the nozzle is formed in a concave shape, the magnetic body is provided on the upper portion of the coupling portion, and A connecting portion of the wiping plate is formed in a convex shape, and the magnet member is provided on the upper portion of the connecting portion.

  Furthermore, the nozzle device for a vacuum cleaner according to claim 4 of the present invention is configured such that the convex coupling portion of the wiping plate closes the concave coupling portion of the nozzle in claim 3. It is.

  The nozzle device for a vacuum cleaner according to claim 1 of the present invention is configured as described above, so that even if the wiping plate is not attached to the nozzle and the floor surface is cleaned, staples and A clip or the like does not magnetically adhere to the joint portion of the nozzle. For this reason, when the wiping plate is attached to the nozzle again, staples and clips do not enter between the magnet member and the magnetic body, so that the wiping plate is attached in a correct posture and prevents dropping. be able to.

  In the state where only the wiping plate is attached to the nozzle, the lower end of the wiping plate is positioned above a plane connecting the front floor grounding point and the rear floor grounding point of the nozzle. In this case, the wiping plate does not come into contact with the floor surface to be cleaned. Therefore, even if only the suction cleaning is performed and the wiping cleaning is not performed, the wiping plate can be left attached to the nozzle, thereby reducing the possibility of the wiping plate being lost. it can.

  Further, the coupling portion of the nozzle is formed in a concave shape, the magnetic body is provided on the upper portion of the coupling portion, the coupling portion of the wiping plate is formed in a convex shape, and the magnet member is disposed on the upper portion of the coupling portion. If provided, even if the magnetic body is magnetized by the magnet member, the distance from the magnetic body to the floor can be increased, so that staples, clips, etc. are not magnetically attached to the magnetic body. Can be.

  Further, if the convex coupling portion of the wiping plate is configured to close the concave coupling portion of the nozzle, the staples and clips on the floor do not enter the concave coupling portion. Even if the wiping plate is repeatedly attached and detached, the wiping plate can be attached to the nozzle in a correct posture with certainty.

It is a side view of the whole vacuum cleaner using the nozzle device for vacuum cleaners which shows one Embodiment of this invention. It is a front view of the nozzle device for vacuum cleaners. FIG. It is AA sectional drawing. FIG. 5 is an enlarged cross-sectional view of a portion surrounded by a broken line in FIG. 4. It is an expanded sectional view in the state where the wiping sheet in the same position as Drawing 5 was equipped. It is a front view of a nozzle same as the above. It is a top view of a nozzle same as the above. It is A'-A 'sectional drawing of a nozzle. It is explanatory drawing of a wiping plate similarly, (a) is a top view, (b) is BB sectional drawing.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 10. In the following description, the left side of FIGS. 1, 4 to 6 and 9 is the front, and the right side is the rear. In addition, the top and bottom in FIGS. 1, 4 to 6 and 9 are the actual top and bottom.

  Reference numeral 1 denotes a stick-type vacuum cleaner. As shown in FIG. 1, the electric vacuum cleaner 1 includes a cleaner body 2 and a nozzle device 3 that is detachably attached to a lower portion of the cleaner body 2. The cleaner body 2 includes a suction mechanism unit 4 and a dust separation unit 5 that is detachably attached to the suction mechanism unit 4. The suction mechanism unit 4 is configured to have an electric blower (not shown) inside a substantially cylindrical casing 4A. Further, the dust separating means 5 is provided with a connection receiving portion 6 for connecting the nozzle device 3 at the lower part thereof. The dust separating means 5 has a cyclone cylinder 7. The cyclone cylinder 7 is mounted above the connection receiving portion 6. The nozzle device 3 includes a nozzle 8 and a wiping plate 9 that is detachably attached to a lower portion of the nozzle 8. Further, a U-shaped first handle 10 for holding the electric vacuum cleaner 1 is provided on the front surface of the suction mechanism section 4, that is, on the upper front surface of the cleaner body 2. A second handle 11 is detachably provided on the front side of the upper end surface of the cleaner body 2.

  Next, the nozzle 8 will be described in detail. As shown in FIGS. 2 to 9, the nozzle 8 includes a nozzle body 12 and a connecting pipe portion 13 that is swingably connected to the rear portion of the nozzle body 12. The casing 14 of the nozzle body 12 includes a suction port portion 15 that is long in the left-right direction and a ventilation portion 16 that is long in the front-rear direction. A ventilation path 17 is provided inside the ventilation part 16. The casing 14 includes an upper member 14A and a lower member 14B. An upward convex portion 18 is provided at the center rear portion of the upper member 14A. An opening 19 is formed from the rear upper surface to the rear surface of the convex portion 18. The opening 19 is constituted by the upper member 14A and the lower member 14B. The opening 19 is connected to the connecting pipe 13 so as to be swingable. The connecting pipe part 13 includes an insertion pipe part 20 and a base pipe part 21 connected to the lower part of the insertion pipe part 20. The connecting pipe part 20 is detachably inserted into the connection receiving part 6. The base tube portion 21 is swingably connected to the opening portion 19. And the said insertion pipe part 20 and the base pipe part 21 are connected so that rotation is mutually possible. A suction port 22 is formed in the front lower portion of the nozzle body 12 so as to extend in the left-right direction. Further, the air passage 17 is provided so that the suction port 22 communicates with the opening 19. In addition, this ventilation path 17 is inclined and provided so that it may become high gradually toward the said opening part 19 from the said suction inlet 22 of the front. Further, the base tube portion 21 communicates with the opening portion 19. Further, front wheels 23 are provided on the left and right sides of the front lower portion of the nozzle body 12, and rear wheels 24 are provided on the left and right sides of the rear lower portion of the nozzle body 12. Further, a soft blade 25 is provided behind the suction port 22.

  Further, as shown in FIG. 9, the lower member 14 </ b> B is provided with a concave portion 27 defined by the wall portion 26. The wall portion 26 includes a front wall portion 26A, a rear wall portion 26B, and a pair of left and right side wall portions 26C. And the said recessed part 27 is formed in the shape which sunk upwards and the downward direction opened. Further, a steel plate 28 as a magnetic body is provided in the inner portion, that is, the upper portion of the concave portion 27. The steel plate 28 is exposed downward with respect to the nozzle body 12. The concave portion 27 and the steel plate 28 constitute a coupling portion 29. Further, as shown in FIG. 8, the lower member 14B of the nozzle body 12 is connected to the rear part near the side part of the suction port part 15 and the side part near the rear part of the ventilation part 16, A pair of left and right beam-shaped reinforcing portions 30 are provided. In addition, these reinforcement parts 30 are inclined and provided so that the distance of the left-right direction of these reinforcement parts 30 may become narrower in a rear-end part rather than a front-end part. Furthermore, the intermediate part of the reinforcing part 30 is connected to the side part of the ventilation part 16 by a beam-like second reinforcing part 31. A pair of left and right first openings 32 are formed so as to be surrounded by the front portion of the reinforcing portion 30, the second reinforcing portion 31, the suction port portion 15, and the ventilation portion 16. In addition, a pair of left and right opening portions 33 are formed so as to be surrounded by the rear portion of the reinforcing portion 30, the second reinforcing portion 31, and the ventilation portion 16.

  The wiping plate 9 is formed in a horizontally long substantially rectangular shape in plan view. The wiping plate 9 includes a base body 36 and a soft member 37 that is mounted around and below the base body 36. The soft member 37 is formed of a material having rubber elasticity and not slipping easily, such as an elastomer. A large number of protrusions 38 are provided on the entire lower surface of the soft member 37. Further, an upward convex portion 39 is provided at the center of the upper surface of the wiping plate 9. The convex portion 39 is provided with a magnet member 40. The magnet member 40 includes a permanent magnet 40A provided inside the convex portion 39, and a magnetic conducting portion 40B that contacts the permanent magnet 40A and protrudes from the upper end of the convex portion 39. The convex portion 39 is formed so as to correspond to the shape of the concave portion 27 provided in the nozzle 8. Further, a through hole 41 is formed on the upper surface of the convex portion 39, and the upper end portion of the magnetic conducting portion 40 </ b> B of the magnet member 40 protrudes through the through hole 41. The convex portion 39 and the magnet member 40 constitute a coupling portion 42. A pair of first engaging projections 43 are provided on the upper surface of the wiping plate 9 corresponding to the pair of first openings 32 provided in the nozzle 8. Further, a pair of second engaging convex portions 44 are provided on the upper surface of the wiping plate 9 corresponding to the pair of second openings 33 provided in the nozzle 8. In the present embodiment, the height of the second engagement convex portion 44 is formed higher than the height of the first engagement convex portion 43 and lower than the height of the convex portion 39. In addition, a pair of temporary fixing means 45 for temporarily fixing a wiping sheet 35 for cleaning the floor surface F as a surface to be cleaned is provided on the left and right sides of the upper surface of the wiping plate 9, respectively. In the present embodiment, these temporary fixing means 44 have a number of protrusions whose tips are bent in a hook shape, such as the hook surface of a hook-and-loop fastener.

  Next, the operation of this embodiment will be described. First, the case where the floor surface F is wiped and cleaned using the wiping sheet 35 will be described in detail. When the floor surface F is wiped and cleaned using the wiping sheet 35, the user removes the wiping plate 9 from the nozzle 8. At this time, the wiping plate 9 is only attached to the nozzle 8 by magnetizing the steel plate 28 with the magnet member 40, so that the wiping plate 9 is moved downward by a force greater than the magnetic attraction force of the permanent magnet 40A. Is easily removed from the nozzle 8. Then, the wiping plate 9 is placed on the wiping sheet 35, and the front part and the rear part of the wiping sheet 35 are bent and overlapped on the wiping plate 9. Further, the left and right front portions and the rear portion of the wiping sheet 35 are pressed against the temporary fixing means 45, respectively. As is generally well known, the wiping sheet 35 is composed of a nonwoven fabric in which a large number of fine fibers are entangled. Accordingly, the fine fibers of the wiping sheet 35 are caught by the hook-shaped protrusions of the temporary fixing means 45. Thereby, the wiping sheet 35 is temporarily fixed. It should be noted that the hook-like protrusions of the temporary fixing means 45 cannot hold the wiping sheet 35 with such a strength that can be held by itself.

  And the said wiping sheet | seat 35 was temporarily fixed by inserting the said convex part 39 in the said recessed part 27, and magnetizing the magnet member 40 of the said coupling | bond part 42 to the steel plate 28 of the said coupling | bond part 29. The plate 9 is attached to the nozzle 8 again. At this time, the first engaging convex portion 43 of the wiping plate 9 is inserted into the first opening 32 of the nozzle 8. On the other hand, the second engaging projection 44 of the wiping plate 9 is inserted into the second opening 33 of the nozzle 8. In this way, the first engagement convex portion 43 and the second engagement convex portion 44 are inserted into the first opening portion 32 and the second opening portion 33, so that the wiping plate 9 is attached to the nozzle 8. It is positioned securely against. For this reason, the wiping plate 9 is less likely to play in the horizontal direction with respect to the nozzle 8. And the said wiping sheet 35 is between the said recessed part 27 and the said convex part 39, between the said 1st opening part 32 and the said 1st engaging convex part 43, and said 2nd opening part 33 and said 2nd. It is sandwiched between the engaging convex portion 44 and between the magnetic conducting portion 40 </ b> B and the steel plate 28. Thus, the wiping sheet 35 is attached to the nozzle device 3 by the wiping sheet 35 being sandwiched between the nozzle 8 and the wiping plate 9. The wiping plate 9 is attached to the nozzle 8 behind the suction port 22 so as to be substantially parallel to the suction port 22. Therefore, the wiping plate 9 does not block the suction port 22.

  As described above, the soft member 37 is made of a material that has rubber elasticity and is difficult to slip, and a plurality of protrusions 38 are provided on the entire lower surface of the soft member 37. Therefore, when the wiping sheet 35 is pressed against the floor surface F, the soft member 37 is elastically deformed, so that the wiping sheet 35 can be brought into contact with the floor surface F with an appropriate strength. Further, the plurality of projections 38 provided on the entire lower surface of the soft member 37 suppresses the wiping sheet 35 from moving relative to the wiping plate 9 in the horizontal direction. Therefore, even if wiping and cleaning are continued, the wiping sheet 35 is suppressed from being pulled and loosened in the horizontal direction.

  Thus, the nozzle device 3 to which the wiping plate 9 is attached is attached to the cleaner body 2. In this state, the user holds the first handle 10 or the second handle 11, brings the wiping sheet 35 into contact with the floor surface F, and moves along the floor surface F. At this time, dust on the floor surface F is entangled in the wiping sheet 35 and removed from the floor surface F. In this way, the floor surface F is wiped and cleaned by the wiping sheet 35. As described above, the suction port 22 is not blocked by the wiping plate 9. For this reason, the vacuum cleaner 1 to which the nozzle device 3 is attached can simultaneously suck dust on the floor surface F from the suction port 22 while wiping the floor surface F with the wiping sheet 35. It is.

  The concave portion 27 constituting the coupling portion 29 of the nozzle 8 is closed by the convex portion 39 constituting the coupling portion 42 of the wiping plate 9 and the wiping sheet 35. Further, the steel plate 28 magnetically attached to the magnet member 40 is located at the back of the recess 27 constituting the coupling portion 29 of the nozzle 8, that is, at the top of the recess 27. Therefore, even if the steel plate 28 is magnetically attached to the magnet member 40 and the steel plate 28 is in a state in which staples, clips, etc. on the floor surface F can be magnetically attached, they cannot reach the steel plate 28. . Further, even if there is a gap between the concave portion 27 of the nozzle 8 and the convex portion 39 of the wiping plate 9 or the wiping sheet 35, the steel plate 28 in which staples, clips and the like can be magnetized. However, since it is located sufficiently away from the floor surface F, staples, clips, and the like can be prevented from being magnetically attached to the steel plate 28. Further, even if staples or clips are magnetically attached to the steel plate 28, the steel plate 28 can continue to magnetically adhere staples, clips, etc. if the wiping plate 9 is removed from the nozzle 8. Disappear. Furthermore, even if the steel plate 28 is magnetized by the permanent magnet 40A, the magnetic force of the steel plate 28 is very weak, so that staples, clips, etc. magnetically attached to the steel plate 28 can be easily removed. . Note that there is a higher possibility that staples, clips, and the like are magnetically attached to the magnetic conducting portion 40B of the magnet member 40 than the steel plate 28 is. However, if the magnetic conducting portion 40B is covered with the wiping sheet 35, the wiping sheet 35 can be removed to easily remove staples, clips, and the like from the magnetic conducting portion 40B. Further, even if staples or clips are directly magnetized on the magnetic conducting portion 40B, they can be easily visually recognized and removed. In this way, staples and clips are not magnetically attached to the connecting portion 29 of the nozzle 8 and can be easily removed even if staples and clips are magnetically attached to the connecting portion 42 of the wiping plate 9. Accordingly, when the wiping plate 9 is attached to the nozzle 8, the wiping plate 9 is attached to the nozzle 8 at an inclination with respect to the nozzle 8 by staples or clips, or the wiping plate 9 is insufficiently magnetized. Is prevented from falling off. Accordingly, the wiping plate 9 can be normally attached to the nozzle 8 and the wiping and cleaning with the wiping sheet 35 can be performed normally.

  Next, the case where only the suction cleaning on the floor surface F is performed will be described in detail. When only the vacuum cleaning of the floor surface F is performed by the electric vacuum cleaner 1, there are two methods for the user. The first method is to use the electric vacuum cleaner 1 without attaching the wiping plate 9 to the nozzle 8 as shown in FIGS. In this case, since the nozzle 8 includes the steel plate 28 that does not have magnetism, the electric vacuum cleaner 1 can be stapled or cleaned even if only the nozzle 8 is attached and the floor surface F is suction-cleaned. Clips or the like can be prevented from being magnetically attached to the nozzle 8. In addition, when the magnet member 40 is in contact with the steel plate 28 for a long time, the steel plate 28 may be weakly magnetized. However, the magnetism of the steel plate 28 is very weak. Further, as described above, the steel plate 28 is positioned sufficiently higher than the floor surface F. Accordingly, staples, clips, and the like on the floor surface F are not magnetically attached to the steel plate 8 of the nozzle 8.

  The second method is to use the electric vacuum cleaner 1 with only the wiping plate 9 attached to the nozzle 8 as shown in FIGS. In this case, as shown in FIG. 5, the lower end of the wiping plate 9 connects the ground point of the front wheel 23 which is a front floor surface ground point and the ground point of the rear wheel 24 which is a rear floor surface ground point. It is located above the flat surface, that is, the floor surface F that is the surface to be cleaned. That is, even when only the wiping plate 9 is attached to the nozzle 8 and the electric vacuum cleaner 1 is used, the wiping plate 9 does not contact the floor surface F. Therefore, even if the electric vacuum cleaner 1 is used with the wiping plate 9 mounted on the nozzle 8, dust can be sucked from the suction port 22. For this reason, the user does not need to remove the wiping plate 9 from the nozzle 8 and use the electric vacuum cleaner 1. Therefore, since the wiping plate 9 can always be attached to the nozzle 8, it is not necessary to store the wiping plate 9 separately. For this reason, the possibility of losing the wiping plate 9 can be reduced.

  As described above, the cleaner nozzle device 3 of the present invention includes the nozzle 8 connected to the cleaner body 2 and the wiping plate 9 detachably attached to the lower surface of the nozzle 8. The nozzle 8 is provided with a coupling portion 29, the wiping plate 9 is provided with a coupling portion 42, the coupling portion 29 and the coupling portion 42 are detachably coupled to each other, and the wiping plate 9 and the surface to be cleaned are A wiping sheet 35 is detachably held between the floor surface F, a magnet member 40 is provided at the coupling portion 42 of the wiping plate 9, and a magnetic body is provided at the coupling portion 29 of the nozzle 8. By providing the steel plate 28, staples and clips or the like are magnetically attached to the coupling portion 29 of the nozzle 8 even if the floor surface F is cleaned without the wiping plate 9 being attached to the nozzle 8. Since the wiping plate 9 is not When attached to the nozzle 8 again, staples, clips or the like do not enter between the magnet member 40 and the steel plate 28, and the wiping plate 9 is attached in a correct posture and can be prevented from falling off. is there.

  Further, the nozzle device 3 for a vacuum cleaner of the present invention is such that the lower end of the wiping plate 9 is the front wheel surface grounding point of the nozzle when the wiping plate 9 alone is attached to the nozzle 8. Since it is located above the plane that connects the grounding point and the grounding point of the rear wheel 24 that is the rear floor surface grounding point, that is, the floor surface F, even if only suction cleaning is performed and no wiping cleaning is performed, Since the wiping plate 9 can be left attached to the nozzle 8, the risk of the wiping plate 9 being lost can be reduced.

  Further, in the cleaner nozzle device 3 of the present invention, the steel plate 28 is provided above the concave portion 27 of the nozzle 8 to form the coupling portion 29, and the magnet is disposed above the convex portion 39 of the wiping plate 9. Since the member 40 is provided as the coupling portion 42, even if the steel plate 28 is magnetized by the magnet member 40, the distance from the steel plate 28 to the floor surface F can be increased. A clip or the like can be prevented from being magnetically attached to the steel plate 28.

  Further, in the nozzle device 3 for a vacuum cleaner according to the present invention, the convex portion 39 constituting the coupling portion 42 of the wiping plate 9 closes the concave portion 27 constituting the coupling portion 29 of the nozzle 8, thereby Since the staples and clips on the floor surface F do not enter the concave portion 27 of the portion 29, even if the wiping plate 9 is repeatedly attached and detached, the wiping plate 9 is kept in the correct posture with respect to the nozzle 8 and It can be securely attached.

  In addition, this invention is not limited to the above embodiment, A various deformation | transformation implementation is possible within the range of the summary of invention. For example, in the above embodiment, the cleaner body is a stick type, but may be a horizontal type or a hand-held type. In the above embodiment, the front wheel grounding point of the nozzle is the front floor grounding point, and the rear wheel grounding point is the rear floor grounding point, but the front floor grounding point and the rear floor grounding point are the front wheel grounding point and the rear wheel grounding point. It is not limited to a point.

3 Nozzle device 8 Nozzle 9 Wiping plate 27 Concave portion 28 Steel plate (magnetic material)
29 Coupling part 35 Cleaning sheet 39 Protrusion 40 Magnet member 42 Coupling part F Floor surface (surface to be cleaned)

Claims (4)

A nozzle connected to the cleaner body and a wiping plate that is detachably attached to the lower surface of the nozzle, and each of the wiping plate and the nozzle is provided with a coupling portion that is detachably coupled to each other; In the nozzle device for a vacuum cleaner in which a wiping sheet is detachably held between the wiping plate and a surface to be cleaned,
A nozzle device for a vacuum cleaner, wherein a magnet member is provided at a coupling portion of the wiping plate, and a magnetic body magnetically attached to the magnet member is provided at a coupling portion of the nozzle.   In a state where only the wiping plate is attached to the nozzle, the lower end of the wiping plate is positioned above a plane connecting the front floor grounding point and the rear floor grounding point of the nozzle. The nozzle device for a vacuum cleaner according to claim 1.   The connecting portion of the nozzle is formed in a concave shape, the magnetic body is provided on the upper portion of the connecting portion, the connecting portion of the wiping plate is formed in a convex shape, and the magnet member is provided on the upper portion of the connecting portion. The nozzle device for vacuum cleaners of Claim 1 or 2 characterized by the above-mentioned.   4. The nozzle device for a vacuum cleaner according to claim 3, wherein the convex coupling portion of the wiping plate is configured to close the concave coupling portion of the nozzle.

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