JP2012152300A - Nozzle for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nozzle for a vacuum cleaner in which the ability of combing out hair or the like and the recovery efficiency of the combed-out hair or the like are improved.SOLUTION: The nozzle 1 for a vacuum cleaner includes: a nozzle body 2 provided with a suction port 17 on a bottom surface part 14; a connection pipe part 3 communicated with the suction port 17; and a projection group 4 comprising a plurality of projections 26, 27 projected downwards from the bottom surface part 14 of the nozzle body 2. In the nozzle 1 for the vacuum cleaner, by providing a convex curved surface part 15 which is convexed downwards on the bottom surface part 14 of a base part 7 constituting the nozzle body 2 and providing the suction port 17 on the lower end part 16 of the convex curved surface part 15, even when the nozzle body 2 is inclined so as to raise the front side in an advancing direction D when the nozzle 1 is moved along a carpet C or the like, since a distance from the suction port 17 to the carpet C or the like is kept appropriate, the hair or the like combed out by the projection group 4 is efficiently recovered.

Description

  The present invention relates to a nozzle of a vacuum cleaner, and more particularly to a nozzle of a vacuum cleaner suitable for sucking hair or the like.

  Conventionally, this type of vacuum cleaner nozzle is configured to be detachable with respect to the suction pipe of the vacuum cleaner, and the interval for combing the hair of the object to be cleaned at a position along the suction port. A suction tool having a comb-like portion (corresponding to the projection group of the present invention) having a plurality of toothed teeth arranged side by side is known (see, for example, Patent Document 1). This suction tool was deep inside the object to be cleaned by pressing the comb-like part against the object to be cleaned such as a carpet and moving it back and forth, and sucking it while combing the hair of the object to be cleaned with a toothpick. Dust can be sprinkled up to the surface, and the sprinkled dust can be sucked from the suction port.

No. 7-11734

  However, such a group of protrusions of the vacuum cleaner nozzle is made of a hard material in order to spread a carpet or the like. Therefore, there is a possibility that the carpet or blanket may be damaged by strongly pressing the projection group against the carpet or blanket. In order to avoid such a problem, the present applicant has filed an application in which each protrusion constituting the protrusion group is formed in a conical shape by a flexible material such as an elastomer. And the nozzle for vacuum cleaners of such a structure is based on the advancing direction of a nozzle, and the hair etc. which were scooped out by each processus | protrusion provided in the back rather than the suction inlet are forward in the advancing direction rather than these protrusions. It was comprised so that it might attract | suck from the said suction inlet provided in.

  However, when the user moves the nozzle naturally on a carpet or the like, the nozzle body tilts so that the front side is higher and the rear side is lower with respect to the traveling direction. In this state, since the distance from the suction port to the carpet or the like is increased, the flow velocity of the airflow to the suction port is slowed down. For this reason, when using the conventional nozzle attached to an electric vacuum cleaner having a small output, there is room for improvement in improving the recovery rate of hair or the like squeezed out by the projection group. Furthermore, in the conventional nozzle, by providing a plurality of types of protrusions with different lengths, the aim was to efficiently squeeze hair from a wide range from the surface layer to the deep layer of carpets, etc. If is inclined, depending on the type of carpet or the like, there may be a case where a short protrusion hardly acts. For this reason, there has been room for improvement in improving the ability to comb hair and the like.

  An object of the present invention is to solve the above-mentioned problems and to provide a nozzle for a vacuum cleaner in which the ability to comb out hair and the like and the collection efficiency of the hair that has been spun out are improved.

  The nozzle for a vacuum cleaner according to claim 1 of the present invention includes a nozzle body having a suction port on a bottom surface portion, a connecting pipe portion communicating with the suction port, and a plurality of nozzles projecting downward from the bottom surface portion of the nozzle body. In a vacuum cleaner nozzle having a projection group consisting of a plurality of projections, the bottom surface of the nozzle body is provided with a convex curved surface portion projecting downward, and the suction port is provided at the lower end portion of the convex curved surface portion. Is.

  According to a second aspect of the present invention, there is provided the vacuum cleaner nozzle according to the first aspect, wherein the projection group includes a near projection row including short projections provided along the suction port, and the near projection row. And a far projection row composed of long projections arranged side by side on the opposite side of the suction port, and the near projection row is provided on the convex curved surface portion.

  Furthermore, the nozzle for an electric vacuum cleaner according to claim 3 of the present invention is such that, in claim 2, the protrusions constituting the protrusion group are arranged such that the distal end side is further away from the suction port than the proximal end side of the axis thereof. It is provided to be inclined.

  By configuring the nozzle for a vacuum cleaner according to claim 1 of the present invention as described above, when the nozzle is moved along a carpet or the like, the nozzle body is inclined so that the front side in the traveling direction becomes higher. Even if it does, since the distance from the said suction inlet to a carpet etc. is maintained appropriately, the hair etc. which were sprinkled by the said protrusion group can be collect | recovered efficiently.

  The projection group is a near projection row composed of short projections provided along the suction port, and a long projection row composed of long projections arranged side by side on the opposite side of the suction port across the near projection row. Even if the nozzle body is tilted so that the front side in the traveling direction becomes higher by providing the near projection row on the convex curved surface portion, both the near projection row and the far projection row are carpets. It is possible to exert the action of entering the hair of the hair and combing out the hair and the like.

  Furthermore, the nozzle body is inclined so that the front side in the advancing direction is higher by inclining the protrusions constituting the protrusion group so that the distal end side is separated from the suction port than the proximal end side of the axis line. Even if it does, the resistance which the said protrusion group receives from a carpet etc. becomes small, and it can comb out hair etc. from a carpet etc. with a light operation force.

It is a front view of the nozzle for vacuum cleaners which shows 1st embodiment of this invention. FIG. FIG. It is AA sectional drawing. It is AA sectional drawing in use condition same as the above. It is a front view of the nozzle for vacuum cleaners which shows 2nd embodiment of this invention. FIG. It is BB sectional drawing. It is a BB sectional view in use condition same as the above. It is sectional drawing of the nozzle for vacuum cleaners which shows the comparative example with this invention. It is sectional drawing in a use condition same as the above.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 5. A comparative example will be described with reference to FIGS. In addition, FIG.10 and FIG.11 which is a comparative example does not implement this invention.

  Reference numeral 1 denotes a vacuum cleaner nozzle according to the present invention, which is connected to a vacuum cleaner main body (not shown). The nozzle 1 includes a nozzle body 2, a connecting pipe portion 3, and a projection group 4. The nozzle body 2 has a horizontally long rectangular shape in plan view. The nozzle body 2 includes an upper body 5, a lower body 6, and a base portion 7. And the said upper main body 5 and the connection pipe part 3 are integrally formed. Further, the base 7 is formed integrally with the projection group 4, and a projection member 8 is constituted by these. Further, the lower main body 6 and the protruding member 8 are integrally formed by insert molding. And the said lower main body 6 has the convex part 10 which becomes convex below in the center part of the bottom face part 9. As shown in FIG. Further, the convex portion 10 has a horizontally long suction port 12 at a lower end portion 11 thereof. Further, a communication port 13 is provided at the center of the suction port 12. And the said base part 7 has the convex curved surface part 15 which becomes convex below in the center part of the bottom face part 14. As shown in FIG. Further, the convex curved surface portion 15 has a suction port 17 at the lower end portion 16 corresponding to the suction port 12. The convex curved surface portion 15 protrudes so as to have a substantially arc shape in a side view.

  The connecting pipe portion 3 is formed in a hollow tubular shape whose both ends are open. The connecting pipe part 3 includes a base pipe 18 provided so as to stand upright from the upper body 5, a connecting pipe 19 provided in a state of being tilted backward, and a bent part 20 connecting the base pipe 18 and the connecting pipe 19. And is configured. The base tube 18 is formed very short. Further, the bent portion 20 may be connected to the upper main body 5 without providing the base tube 18. The base tube 18 is connected to the communication port 13 when the upper body 5 is fixed to the lower body 6. Thereby, the connecting pipe portion 3 communicates with the suction ports 12 and 17. Further, the connecting pipe 19 is formed so that the tip side is slightly narrowed so as to be connected to a cleaner body (not shown). Further, the bent portion 20 is formed with a planar finger contact portion 21 on the convex side, that is, the front side. In addition, this finger contact part 21 is formed so that it may face diagonally forward upward. Further, since the finger contact portion 21 is provided on the convex side of the bent portion 20 provided at the upper end of the base tube 18 provided so as to stand upright from the nozzle body 2, the finger rest portion 21 is positioned directly above the nozzle body 2. To do. Further, since the base tube 18 is formed to be very short, the finger pad 21 is located near the nozzle body 2.

  The protrusion group 4 is provided so as to protrude downward from the bottom surface portion 14 of the base portion 7 constituting the nozzle body 2. The projection group 4 includes a pair of near projection rows 22 and 23 and a pair of far projection rows 24 and 25. Each of the near protrusion rows 22 and 23 is configured by arranging short protrusions 26 along the suction port 17. The near projection row 22 is provided on the front side of the suction port 17, and the near projection row 23 is provided on the rear side of the suction port 17. Each of the near protrusion rows 22 and 23 includes a right portion 22R and 23R and a left portion 22L and 23L, respectively. The right portion 22R and the left portion 22L of the near projection row 22 are aligned on the same straight line. Similarly, the right portion 23R and the left portion 23L of the near projection row 23 are also arranged on the same straight line. Each of the near protrusion rows 22 and 23 is provided on the convex curved surface portion 15 of the base portion 7. Further, the short protrusions 26 constituting the near protrusion row 22 are provided so as to be inclined such that the distal end side of the central axis Xa is in front of the proximal end side. Further, the short protrusions 26 constituting the near protrusion row 23 are provided so as to be inclined so that the distal end side of the central axis Xb is behind the proximal end side. That is, any of the short protrusions 26 is provided so as to be inclined such that the distal ends of the central axes Xa and Xb are further away from the suction ports 12 and 17 than the proximal ends. On the other hand, the far protrusion rows 24 and 25 are configured by arranging long protrusions 27 on the opposite sides of the suction ports 12 and 17 with the near protrusion rows 22 and 23 interposed therebetween. The far protrusion row 24 is provided on the front side of the near protrusion row 22, and the far protrusion row 25 is provided on the rear side of the near protrusion row 23. The far protrusion rows 24 and 25 are provided at the boundary between the convex curved surface portion 15 and the flat outer peripheral portion 28 in the bottom surface portion 14 of the base portion 7. Further, the long protrusions 27 constituting the far protrusion row 24 are provided so as to be inclined so that the distal end side of the central axis Xc is in front of the proximal end side. Further, the long protrusions 27 constituting the far protrusion row 25 are provided so as to be inclined so that the distal end side of the central axis Xd is behind the proximal end side. That is, any of the long protrusions 27 is provided so as to be inclined such that the distal end sides of the central axes Xc and Xd are further away from the suction ports 12 and 17 than the proximal end sides. The inclination angles of the central axes Xa and Xb of the respective short protrusions 26 are the same except that the inclination directions are opposite to each other. Similarly, the inclination angles of the central axes Xc and Xd of the long protrusions 27 are the same except that the inclination directions are opposite to each other. The inclination angles of the central axes Xa and Xb of the short protrusions 26 are smaller than the inclination angles of the central axes Xc and Xd of the long protrusions 27. Further, the tips of the long projections 27 are the same as the tips of the short projections 26 or slightly below the tips of the short projections 26.

  A comparative example will also be described. As described above, this comparative example does not implement the present invention. The nozzle 101 of the comparative example is also configured to include a nozzle body 102, a connecting pipe portion 103, and a projection group 104. The nozzle main body 102 also includes an upper main body 105, a lower main body 106, and a base 107. The projection group 104 also includes near projection rows 122 and 123 composed of a plurality of short projections 126 and far projection rows 124 and 125 composed of a plurality of long projection rows 127. Further, the base 107 and the protrusion group 104 constitute a protrusion member 108 in common. The number, material, size, and shape of the protrusions 126, 127 of the comparative example are the same as the number, material, size, and shape of the protrusions 26, 27 of the present embodiment. Differences between the present embodiment and the comparative example are as follows. In the nozzle 1 of this embodiment, the convex curved surface portion 15 is formed on the base portion 7 of the nozzle body 2, whereas in the nozzle 101 of the comparative example, the base portion 107 of the nozzle body 102 is flat. Further, in the present embodiment, the protrusions 26 and 27 constituting the protrusion group 4 are provided to be inclined, whereas in the comparative example, the protrusions 126 and 127 are provided vertically. Further, in the present embodiment, the suction port 12 is formed on the convex portion 10 of the lower main body 6 and the suction port 17 is formed on the convex curved surface portion 15 of the base portion 7, whereas the comparative example is the suction port 112. Is formed in the flat bottom surface portion 109 of the lower main body 106, and the suction port 117 is formed in the flat bottom surface portion 114 of the base portion 107.

  Next, the operation of this embodiment will be described. In the following description, hair and the like includes not only human hair but also pet hair. First, the user connects the connecting pipe 19 of the connecting pipe portion 3 to the cleaner body (not shown), and then operates the cleaner body. The user grips the connecting pipe portion 3 and tilts the nozzle 1 so that the rear of the nozzle body 2 is high and the front is low, and is provided on the front side of the suction ports 12 and 17. After the near projection row 22 and the far projection row 24 are pressed against the carpet C or the like, the nozzle 1 is moved in the traveling direction D (in this case, the backward direction) along the carpet C or the like. That is, in this case, the near protrusion row 22 and the far protrusion row 24 are on the rear side of the suction ports 12 and 17 with respect to the traveling direction D. At this time, the long protrusions 27 constituting the far protrusion row 24 are pressed against the carpet C or the like more strongly than the short protrusions 26 constituting the near protrusion row 22, so that the long protrusions 27 are moved in the traveling direction D. Deforms greatly in the direction of delay. On the other hand, the short protrusion 26 is deformed small in a direction delayed with respect to the traveling direction D. In this way, the hair lurking in the hair of the carpet C or the like by the long protrusion 27 that is greatly deformed and the short protrusion 26 that is deformed small is the front side in the traveling direction D of the protrusions 26 and 27, that is, the suction port. It is rolled out on the 12th and 17th side. Then, the hair or the like sprinkled by the protrusions 26 and 27 rides on the airflow passing between the base 7 and the carpet C and the suction air located on the front side in the traveling direction D of the protrusions 26 and 27. From the ports 12 and 17, the vacuum cleaner main body (not shown) is sucked through the communication port 13 and the connecting pipe portion 3.

  Depending on the user, it may be easier to handle when the traveling direction is the forward direction. Also, depending on the cleaning location, the traveling direction may have to be the forward direction. In this case, the user holds the connecting pipe portion 3 and tilts the nozzle 1 so that the rear of the nozzle body 2 is low and the front is high, and is provided on the rear side of the suction ports 12 and 17. After pressing the near projection row 23 and the far projection row 25 against the carpet C or the like, the nozzle 1 is moved in the traveling direction (in this case, the front direction) along the carpet C or the like. That is, in this case, the near projection row 23 and the far projection row 25 are on the rear side of the suction ports 12 and 17 with respect to the traveling direction. At this time, the long protrusions 27 constituting the far protrusion row 25 are pressed against the carpet C or the like more strongly than the short protrusions 26 constituting the near protrusion row 23, so that the long protrusions 27 are Greatly deforms in the direction of delay. On the other hand, the short protrusion 26 is deformed small in a direction delayed with respect to the traveling direction. In this way, the hair lurking in the hair of the carpet C or the like with the long protrusion 27 greatly deformed and the short protrusion 26 deformed small, the front side in the traveling direction of the protrusions 26, 27, that is, the suction port 12. , 17 to the side. Then, the hair or the like sprinkled by the projections 26 and 27 rides on the airflow passing between the base 7 and the carpet C and the suction port located on the front side in the traveling direction of the projections 26 and 27. The vacuum cleaner body (not shown) is sucked from 12 and 17 through the communication port 13 and the connecting pipe portion 3.

  Further, the nozzle 1 may be operated by gripping a connection pipe on the cleaner body side (not shown) instead of the connection pipe section 3, and holding a grip portion provided on the cleaner body (not shown). May be operated.

  About this effect | action, this embodiment and a comparative example are compared. In the present embodiment and the comparative example, the deformation amounts of the long protrusions 27 and 127 are the same, that is, they are pressed against the carpet C or the like with the same force, and the inclination angle of the nozzle bodies 2 and 102 is To be the same. In the present embodiment, as described above, since the suction port 17 is provided at the lower end portion 16 of the convex curved surface portion 15 of the base portion 7 constituting the nozzle body 2, the distance from the suction port 17 to the carpet C or the like is increased. It can be made relatively small. In particular, since the convex curved surface portion 15 is configured to have an arc shape when viewed from the side, even when the nozzle body 2 is inclined as shown in FIG. However, the distance from the suction port 17 to the carpet C and the like can be made relatively small in a wide range from the front end of the suction port 17 to the central portion. As a result, it is possible to prevent the flow velocity of the airflow passing between the base 7 and the carpet C or the like from decreasing, so that the squeezed hair or the like passes from the suction port 17 through the suction port 12. Suction can be reliably performed. For this reason, even if the nozzle 1 is connected to a cleaner body having a relatively small output, it is possible to efficiently collect the squeezed hair and the like. Further, as described above, since the convex curved surface portion 15 is configured to have an arc shape in a side view, even if the inclination angle fluctuates when the nozzle 1 is pulled, the suction port 17 Since there is little variation in the distance to the carpet C or the like, this distance can be kept appropriate. In addition, since the tip of the short protrusion 26 is positioned relatively below, both the short protrusion 26 and the long protrusion 27 can comb out hair and the like hidden in the carpet C or the like. At this time, since the long protrusions 27 are greatly bent and the short protrusions 26 are bent small, the angles of the long protrusions 27 and the short protrusions 26 can be made different. Can be fired. Furthermore, since the short protrusions 26 constituting the near protrusion row 22 and the long protrusions 27 constituting the far protrusion row 24 are inclined in a direction delayed with respect to the traveling direction D, the protrusion group 4 is separated from the carpet C or the like. The resistance received can be reduced. As a result, it is possible to comb out the hair or the like hidden in the carpet C or the like with a light operating force.

  In contrast, in the comparative example, as described above, since the suction port 117 is provided in the flat bottom surface portion 114 of the base 107, the distance from the suction port 117 to the carpet C and the like is relatively large. In particular, when the nozzle body 102 is inclined as shown in FIG. 11, the suction port 117 becomes higher toward the rear. For this reason, since the flow velocity of the airflow passing between the base 107 and the carpet C or the like is reduced, when the nozzle 101 is connected to a cleaner body having a relatively small output, There is a possibility that the suction port 117 cannot be reliably sucked and collected via the suction port 112. Furthermore, as described above, since the suction port 117 is provided in the flat bottom surface portion 114 of the base 107, when the inclination angle fluctuates when the nozzle 101 is pulled, the carpet C or the like is drawn from the suction port 117. The distance until the distance is large, and this distance cannot be maintained properly. In addition, since the tip of the short protrusion 126 is positioned relatively upward, the short protrusion 126 may not contact the carpet C or the like depending on the inclination angle of the nozzle body 102. In this case, since the short protrusion 126 does not squeeze hair or the like, the squeezing ability may be reduced. Further, since the long protrusion 127 is provided upright with respect to the base portion 107, when the nozzle body 102 is inclined as shown in FIG. 11, the long protrusion 127 is inclined in the traveling direction with respect to the traveling direction D. To do. As shown in FIG. 11, even if the long protrusion 127 bends in a direction that is delayed with respect to the traveling direction D, the direction of the central axis on the proximal end side of the long protrusion 127 is the direction that proceeds with respect to the traveling direction D. Therefore, the resistance that the projection group 104 receives from the carpet C or the like increases. Therefore, the operation force of the nozzle 101 becomes heavy.

  In the present embodiment, when gripping the connection pipe portion 3, the finger pad 21 of the planar shape provided on the convex side of the bent portion 20 is placed on the finger pad of the user's finger F (forefinger or thumb). By pressing against the finger pad, it is easy to apply a force stably to the finger F pressed against the finger pad 21. As a result, when the nozzle 1 is moved so as to be pulled in the traveling direction D along the carpet C or the like, the nozzle 1 can be easily pulled. Further, since the finger contact portion 21 is provided immediately above the nozzle body 2, the force applied to the finger contact portion 21 can be stably and efficiently transmitted to the protrusions 26 and 27. As a result, since the projection group 4 can be stably pressed against the carpet C or the like with a light force, the nozzle 1 can be pulled more easily. In addition, when the nozzle main body 2 is inclined as shown in FIG. 5 by providing the finger contact portion 21 on the convex side, that is, the front side of the bent portion 20, the protrusion rows 22 that come into contact with the carpet C or the like. , 24 and the finger contact portion 21 are less misaligned in the traveling direction D, so that the force applied to the finger contact portion 21 can be transmitted to the protrusion rows 22 and 24 more efficiently. Furthermore, since the base tube 18 is formed to be very short, the distance between the finger pad 21 and the projection group 4 can be shortened, so that the projection group 4 can be more stably pressed and pulled on the carpet C or the like. it can.

  As described above, the present invention includes the nozzle body 2 having the suction port 17 in the bottom surface portion 14, the connecting pipe portion 3 communicating with the suction port 17, and a plurality of projections projecting downward from the bottom surface portion 14 of the nozzle body 2. In the vacuum cleaner nozzle 1 having the projection group 4 including the projections 26 and 27, the bottom surface portion 14 of the base portion 7 constituting the nozzle body 2 is provided with a convex curved surface portion 15 that protrudes downward. By providing the suction port 17 at the lower end portion 16 of the convex curved surface portion 15, the nozzle body 2 is inclined so that the front side in the traveling direction D becomes higher when the nozzle 1 is moved along the carpet C or the like. Even if it does, since the distance from the said suction inlet 17 to the carpet C etc. is maintained appropriately, the hair etc. which were squeezed out by the said protrusion group 4 can be collect | recovered efficiently.

  Further, in the present invention, the projection group 4 is arranged so that the near projection rows 22 and 23 formed by the short projections 26 arranged along the suction port 17 and the suction port 17 opposite to the near projection rows 22 and 23. The long projections 27 and 25 are arranged on the side, and the near projections 22 and 23 are provided on the convex curved surface portion 15 so that the front side in the traveling direction D becomes higher. Even if the nozzle body 2 is tilted, both the near projection row 22 and the far projection row 24 enter the hair of the carpet C and the like, and can act to comb out the hair and the like.

  Further, in the present invention, the protrusions 26 and 27 constituting the protrusion group 4 are inclined so that the distal end side is separated from the suction port 17 with respect to the base end side of the axis lines Xa to Xd. Even if the nozzle body 2 is inclined so that the front side of D is raised, the resistance received by the projection group 4 from the carpet C or the like is reduced, and hair or the like can be combed out from the carpet C or the like with a light operating force. Is.

  Next, a second embodiment of the present invention will be described with reference to FIGS. 31 is the nozzle for electric vacuum cleaners of this invention, and is connected to the vacuum cleaner main body which is not shown in figure. The nozzle 31 includes a nozzle body 32, a connecting pipe portion 3, and a protrusion group 34. The nozzle body 32 has a horizontally long rectangular shape in plan view. The nozzle body 32 includes an upper body 5, a lower body 36, and a base 37. And the said upper main body 5 and the connection pipe part 3 are integrally formed. The base portion 37 is formed integrally with the projection group 34, and a projection member 38 is constituted by these. Further, the lower main body 36 and the protruding member 38 are integrally formed by insert molding. And the said lower main body 36 has the convex part 40 which becomes convex at the center part of the bottom face part 39 below. Further, the convex portion 40 has a horizontally long suction port 42 at a lower end portion 41 thereof. Further, a communication port 43 is provided at the center of the suction port 42. And the said base part 37 has the convex curve part 45 which becomes convex below in the front half part of the bottom face part 44. As shown in FIG. On the other hand, the base portion 37 has a protruding portion 46 having a flat bottom end surface at the rear half portion of the bottom surface portion 44. The convex curved surface portion 45 and the protruding portion 46 are formed such that their lower end surfaces are continuous. In this manner, the convex portion 47 is formed by the convex curved surface portion 45 and the protruding portion 46. The protrusion 47 has a suction port 49 at the lower end 48 corresponding to the suction port 42. The convex curved surface portion 45 protrudes so as to have a substantially arc shape in a side view.

  The protrusion group 34 is provided to protrude downward from the bottom surface portion 44 of the base portion 37 constituting the nozzle body 32. The projection group 34 includes a near projection row 52 and a far projection row 54. The near projection row 52 is configured by arranging short projections 56 along the suction port 49. The near projection row 52 is provided on the front side of the suction port 49. The near protrusion row 52 is provided on the convex curved surface portion 45 of the base portion 37. Further, the short protrusions 56 constituting the near protrusion row 52 are provided so as to be inclined so that the distal end side of the central axis Xe is forward of the proximal end side. That is, any of the short protrusions 56 is provided so as to be inclined such that the distal end side of the central axis Xe is further away from the suction ports 42 and 49 than the proximal end side. On the other hand, the far protrusion row 54 is configured by arranging long protrusions 57 on the opposite side of the suction ports 42 and 49 across the near protrusion row 52. The far protrusion row 54 is provided on the front side of the near protrusion row 52. The far protrusion row 54 is provided at a boundary portion between the convex curved surface portion 45 and the flat outer peripheral portion 58 in the bottom surface portion 44 of the base portion 37. Further, the long protrusions 57 constituting the far protrusion row 54 are provided so as to be inclined such that the distal end side of the central axis Xf is forward of the proximal end side. That is, any of the long projections 57 is provided so as to be inclined such that the distal end side of the central axis Xf is further away from the suction ports 42 and 49 than the proximal end side. The inclination angle of the central axis Xe of each short protrusion 56 is smaller than the inclination angle of the central axis Xf of each long protrusion 57. Further, the tips of the long projections 57 are the same as the tips of the short projections 56 or slightly below the tips of the short projections 56.

  Next, the operation of this embodiment will be described. In this embodiment as well, hair and the like includes not only human hair but also pet hair. First, the user operates the cleaner body after connecting the connecting pipe 19 of the connecting pipe portion 3 to the cleaner body (not shown). Then, the user grips the connecting pipe portion 3, tilts the nozzle 31 so that the back of the nozzle body 32 is high and the front is low, and the near protrusion row 52 and the far protrusion row 54 are carpeted. After pressing against C or the like, the nozzle 31 is moved in the traveling direction D along the carpet C or the like. In the present embodiment, the traveling direction D is always the backward direction. That is, in this case, the near projection row 52 and the far projection row 54 are on the rear side of the suction ports 42 and 49 with respect to the traveling direction D. At this time, the long protrusions 57 constituting the far protrusion row 54 are pressed more strongly against the carpet C or the like than the short protrusions 56 constituting the near protrusion row 52, so that the long protrusions 57 are moved in the traveling direction D. Deforms greatly in the direction of delay. On the other hand, the short projection 56 is deformed small in a direction delayed with respect to the traveling direction D. Thus, the hair lurking in the same manner as the hair of the carpet C or the like with the long protrusion 57 greatly deformed and the short protrusion 56 deformed small, the front side in the traveling direction D of the protrusions 56 and 57, that is, the suction port. 42 and 49 side. Then, the hair or the like sprinkled by the protrusions 56 and 57 rides on the airflow passing between the base 37 and the carpet C and the suction air located on the front side in the traveling direction D of the protrusions 56 and 57. From the ports 42 and 49, the vacuum cleaner main body (not shown) is sucked through the communication port 43 and the connecting pipe portion 3.

  This action will be described in detail. In the present embodiment, as described above, since the suction port 49 is provided at the lower end portion 48 of the convex curved surface portion 45 of the base portion 37 constituting the nozzle body 32, the distance from the suction port 49 to the carpet C or the like is increased. It can be made relatively small. In particular, since the convex curved surface portion 45 is configured to have an arc shape in a side view, even when the nozzle body 32 is inclined as shown in FIG. 9, the rear portion of the suction port 49 becomes slightly higher. However, the distance from the suction port 49 to the carpet C and the like can be made relatively uniform and relatively small in a wide range from the front end of the suction port 49 to the central portion. As a result, it is possible to prevent the flow velocity of the airflow passing between the base 37 and the carpet C or the like from decreasing, so that the hair that has been squeezed out from the suction port 49 via the suction port 42. Suction can be reliably performed. For this reason, even if the nozzle 31 is connected to a cleaner body having a relatively small output, it is possible to efficiently collect the squeezed hair and the like. In addition, as described above, the convex curved surface portion 45 is configured to have an arc shape when viewed from the side, so that when the nozzle 31 is pulled, even if the inclination angle fluctuates, Since there is little variation in the distance to the carpet C or the like, this distance can be kept appropriate. Further, since the tips of the short protrusions 56 are located relatively below, both the short protrusions 56 and the long protrusions 57 can comb out hairs and the like hidden in the carpet C and the like. At this time, since the long protrusions 57 are greatly bent and the short protrusions 56 are bent small, the angles of the long protrusions 57 and the short protrusions 56 can be made different. Can be fired. Further, the short projection 56 constituting the near projection row 52 and the long projection 57 constituting the far projection row 54 are inclined in a direction delayed with respect to the traveling direction D, so that the projection group 34 is separated from the carpet C or the like. The resistance received can be reduced. As a result, it is possible to comb out the hair or the like hidden in the carpet C or the like with a light operating force.

  In the present embodiment, when gripping the connection pipe portion 3, the finger pad 21 of the planar shape provided on the convex side of the bent portion 20 is placed on the finger pad of the user's finger F (forefinger or thumb). By pressing against the finger pad, it is easy to apply a force stably to the finger F pressed against the finger pad 21. As a result, when the nozzle 31 is moved so as to be pulled in the traveling direction D along the carpet C or the like, the nozzle 31 can be easily pulled. Further, since the finger contact portion 21 is provided immediately above the nozzle body 2, the force applied to the finger contact portion 21 can be stably and efficiently transmitted to the protrusions 56 and 57. As a result, since the projection group 34 can be stably pressed against the carpet C or the like with a light force, the nozzle 31 can be pulled more easily. In addition, when the nozzle main body 32 is inclined as shown in FIG. 9 by providing the finger contact portion 21 on the convex side, that is, the front side of the bent portion 20, the protrusion rows 52 that come into contact with the carpet C or the like. , 54 and the finger contact portion 21 are less misaligned in the traveling direction D, so that the force applied to the finger contact portion 21 can be more efficiently transmitted to the protrusion rows 52, 54. Furthermore, since the base tube 18 is formed to be very short, the distance between the finger pad 21 and the projection group 34 can be shortened, so that the projection group 34 can be more stably pressed and pulled on the carpet C or the like. it can.

  As described above, the present invention includes the nozzle body 32 having the suction port 49 in the bottom surface portion 44, the connection pipe portion 3 communicating with the suction port 49, and a plurality of projections projecting downward from the bottom surface portion 44 of the nozzle body 32. In the vacuum cleaner nozzle 31 having the projection group 34 including the projections 56 and 57, the bottom surface portion 44 of the base portion 37 constituting the nozzle body 32 is provided with a convex curved surface portion 45 that protrudes downward. By providing the suction port 49 at the lower end portion 48 of the convex curved surface portion 45, the nozzle body 32 is inclined so that the front side in the traveling direction D becomes higher when the nozzle 31 is moved along the carpet C or the like. Even if it does, since the distance from the said suction inlet 49 to the carpet C etc. is maintained appropriately, the hair etc. which were sprinkled by the said protrusion group 34 can be collect | recovered efficiently.

  Further, according to the present invention, the projection group 34 is arranged on the opposite side of the suction port 49 with the near projection row 22 including the short projections 56 arranged along the suction port 49 and the near projection row 22 interposed therebetween. The nozzle main body 32 is inclined so that the front side in the traveling direction D becomes higher by providing the near projection row 22 on the convex curved surface portion 45. However, both the near projection row 52 and the far projection row 54 can enter the hair of the carpet C and the like, and can act to comb out the hair and the like.

  Further, in the present invention, the protrusions 56 and 57 constituting the protrusion group 34 are inclined such that the distal end side is separated from the suction port 49 rather than the base end side of the axis lines Xe and Xf. Even if the nozzle body 32 is inclined so that the front side of D is higher, the resistance received by the projection group 34 from the carpet C or the like is reduced, and hair or the like can be combed out from the carpet C or the like with a light operating force. Is.

  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 long protrusion is provided at the boundary position between the convex curved surface portion and the flat portion, but the long protrusion may be provided on the convex curved surface portion. Moreover, in the said embodiment, although the convex curve part was provided in the center part of the bottom face part of a nozzle main body, it is good also considering the whole bottom face part of a nozzle main body as a convex curve part.

DESCRIPTION OF SYMBOLS 1,31 Nozzle for vacuum cleaners 2,32 Nozzle main body 3 Connection pipe part 4,34 Protrusion group 14,44 Bottom face part 15,45 Convex curved surface part 16,48 Lower end part 17,49 Suction port 22,23,52 Near projection Row 24, 25, 54 Far projection row 26, 56 Short projection 27, 57 Long projection Xa, Xb, Xc, Xd, Xe, Xf Center axis

Claims (3)

A nozzle body having a suction port on the bottom surface,
A connecting pipe portion communicating with the suction port;
In a nozzle for a vacuum cleaner having a projection group consisting of a plurality of projections projecting downward from the bottom surface of the nozzle body,
While providing a convex curved surface portion that protrudes downward on the bottom surface of the nozzle body,
A nozzle for a vacuum cleaner, wherein the suction port is provided at a lower end portion of the convex curved surface portion. The projection group includes a near projection row composed of short projections provided along the suction port, and a far projection row composed of long projections arranged side by side on the opposite side of the suction port across the near projection row. With and configured,
The nozzle for an electric vacuum cleaner according to claim 1, wherein the near projection row is provided on the convex curved surface portion.   3. The nozzle for an electric vacuum cleaner according to claim 2, wherein each of the protrusions constituting the protrusion group is provided so as to be inclined such that a distal end side is separated from the suction port with respect to a base end side of the axis line.

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