JP5199732B2 - Vacuum cleaner nozzle - Google Patents

Description

  The present invention relates to a nozzle of a vacuum cleaner, and more particularly to a nozzle having a fixed brush.

Conventionally, as a nozzle of this type of vacuum cleaner, there is a special cleaning brush in which a plurality of brush flocks are arranged on the cleaning surface, a suction port is provided between these rows, and a suction tube is provided after the suction port. It is known (for example, refer to Patent Document 1).
Japanese Utility Model Publication No. 6-41648

  In general, when trying to suck dust on a flat surface to be cleaned such as a floor, it is common to suck dust from the front of the nozzle while moving the nozzle back and forth. However, in the nozzle of the vacuum cleaner as described above, there is no problem as long as the rows of brushes are arranged on the left and right sides. Not only does the row provide resistance to the suction airflow, but the amount of airflow that passes through the front and rear brush rows is almost the same, making it unsuitable for cleaning flat surfaces to be cleaned. It was.

  An object of the present invention is to solve the above-mentioned problems and to provide a nozzle of a vacuum cleaner having a fixed brush that can easily suck dust on a flat surface to be cleaned.

The nozzle of the vacuum cleaner according to claim 1 of the present invention is a nozzle of a vacuum cleaner having a nozzle body having an inlet opening formed on a bottom surface thereof and a connecting member communicating with the inlet opening. only set the brush rows and the rear brush rows before the hair bundle was formed by implanted in a row each having a flexible front and back of the inlet opening, the distance tufts between the front brush rows, wherein The nozzle body is rotatable with respect to the connecting member so as to be larger than the interval between the hair bundles of the rear brush row, and either one of the left and right ends of the nozzle body is the front end, and sandwiches the inlet opening And a pair of ribs are formed in parallel with each brush row, and these ribs are formed so as to protrude downward from the mounting surface of the hair bundle, and the amount of protrusion of the hair bundle is the amount of protrusion of the rib. Is larger than

  When the nozzle of the vacuum cleaner according to claim 1 of the present invention is configured as described above, when sucking an airflow containing dust from the nozzle, it is more than between the hair bundles constituting the rear brush row. Since more airflow can be sucked from between the hair bundles constituting the front brush row, dust can be sucked well from the front of the nozzle.

Further, the left or right end of the nozzle body such that a front end, a rotatable said nozzle body relative to the connecting member, a pair in parallel with and each brush row so as to sandwich the inlet opening The ribs are formed so as to protrude downward from the attachment surface of the bristle bundle, and the projection amount of the bristle bundle is larger than the projection amount of the ribs. When the nozzle main body is rotated with respect to the connection member so that one of the ends becomes the front end, the nozzle is pressed against the surface to be cleaned, and the hair bundle constituting each brush row is bent. , The total area of the openings surrounded by the hair bundles of the front brush row and the attachment surface (in some cases, these and the surface to be cleaned), and the hair bundles of the rear brush row and the attachment surface (or these) The total area of the opening surrounded by the surface to be cleaned) The difference is not only smaller than the state in which each hair bundle is upright, but also the attachment surface side of each opening overlaps with the rib, so that the inlet opening passes through each brush row from the side. By reducing the airflow that flows into the airflow and making it not significantly different from the left and right, the airflow containing dust can be satisfactorily sucked.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 13. Reference numeral 1 denotes a hand-held vacuum cleaner. This vacuum cleaner 1 has a cleaner body 2, a nozzle 3 that is detachably attached to the cleaner body 2, and a dust collecting means 4 that is detachably attached to the cleaner body 2. Configured.

  The vacuum cleaner main body 2 includes a body portion 6 in which an electric blower 5 is built, a connection portion 7 in which a suction path (not shown) is provided, a grip portion 8, and a power cord 9. Yes. The grip 8 is provided with an operation unit 10 for attaching / detaching the dust collecting means 4 and a switch operation unit (not shown). The nozzle 3 is detachably attached to one end of the suction path of the connecting portion 7.

  The nozzle 3 will be described in detail. The nozzle 3 includes a horizontally long nozzle body 11 and a connection member 12 that is rotatably attached to the nozzle body 11. The nozzle body 11 has an inlet opening 14 formed at the center of the bottom surface 13 thereof. Further, the front rib 15 and the rear rib 16 extend in the left-right direction so as to protrude downward from the bottom surface 13 so as to sandwich the inlet opening 14 and are formed integrally with the bottom surface 13. As shown in FIG. 3, the front rib 15 and the rear rib 16 are formed so that the amount of protrusion from the bottom surface 13 is equal, and as shown in FIG. 5, the width is equal and parallel. Is formed. Further, a front brush row 17 and a rear brush row 18 are provided on the bottom surface 13 so as to extend in the left-right direction so as to sandwich the inlet opening 14. The front brush row 17 and the rear brush row 18 are provided in parallel to each other as shown in FIG. In addition, the front brush row 17 is configured by implanting a plurality of hair bundles 20 linearly at equal intervals on a mounting surface 19 constituting a part of the bottom surface 13, and the rear brush row 18. Also, a plurality of hair bundles 22 are arranged in a straight line at equal intervals on a mounting surface 21 that constitutes a part of the bottom surface 13. The mounting surface 19 is provided in front of the front rib 15, and the mounting surface 21 is provided in the rear of the rear rib 16. That is, the front brush row 17 is provided in front of the front rib 15, and the rear brush row 18 is provided in the rear of the rear rib 16. The front brush row 17 is provided in parallel with the front rib 15, and the rear brush row 18 is also provided in parallel with the rear rib 16. Further, the protruding amounts of the bristles 20 and 22 constituting the brush rows 17 and 18 are formed equal to each other and larger than the protruding amounts of the ribs 15 and 16. Further, the interval P1 between the hair bundles 20 constituting the front brush row 17 is made larger than the interval P2 between the hair bundles 22 constituting the rear brush row 18. Further, the mounting surfaces 19, 21 on which the hair bundles 20, 22 are implanted are formed at substantially the same height as both end portions of the bottom surface 13, so that the front rib 15 and the rear rib 16 are The mounting surfaces 19 and 21 are formed so as to protrude downward. An opening 23 is formed on the upper right side of the nozzle body 11, and the lock operation unit 24 is exposed from the opening 23.

  The connecting member 12 includes a rotating body 25 and a connecting pipe 26. The rotating body 25 is attached to the nozzle body 11 so as to be rotatable around an axis Y passing through the center of the inlet opening 14. The connecting pipe 26 is attached to the rotating body 25 so as to be rotatable around an axis X extending in the left-right direction orthogonal to the axis Y.

  Note that the horizontally long nozzle body 11 is a side 11A (hereinafter simply referred to as a front end) provided with the front brush row 17 or the locking operation when the connection member 12 attached to the cleaner body 2 is used as a reference. It can be rotated in a range of 90 degrees so that one of the sides 11B on which the portion 24 is provided is the front side. That is, as shown in FIGS. 2 to 6, the nozzle body 11 has its front end 11A always on the front side in the first use state in which the nozzle body 11 and the connecting member 12 are T-shaped in plan view. In addition, as shown in FIGS. 7 to 13, in the second use state in which the nozzle body 11 and the connection member 12 are linear in a plan view, the side 11 </ b> B on which the lock operation unit 24 is provided (hereinafter, (Simply called the right end) is always the front side.

  Next, the operation of this embodiment will be described. In the state where the nozzle 3 and the dust collecting means 4 are attached to the cleaner body 2, a power plug (not shown) provided at the tip of the power cord 9 is connected to a power source (not shown) and then a switch (not shown). The electric blower 5 operates by operating the operation unit. Then, by operating the electric blower 5 in this way, a suction air flow S from the nozzle 3 to the electric blower 5 through the suction path (not shown) and the dust collecting means 4 is formed. Dust contained in the suction airflow S is separated from the suction airflow S in the dust collecting means 4 and stored in the dust collecting means 4.

  When the nozzle 3 is used in the first use state, as shown in FIG. 6, most of the suction airflow S flows into the inlet opening 14 from the front and left and right of the nozzle body 11, and the nozzle body 11 hardly flows in from behind. As described above, the interval P1 between the hair bundles 20 constituting the front brush row 17 is larger than the interval P2 between the hair bundles 22 constituting the rear brush row 18, and the front brush row 17 The total area of the openings surrounded by the bristles 20 and the mounting surface 19 and the surface to be cleaned F is the total area of the openings surrounded by the bristles 22 of the rear brush row 18 and the mounting surface 21. (That is, the front brush row 17 has a larger gap than the rear brush row 18), so that the suction airflow S passes through the front brush row 17 as compared with the rear brush row 18. It is because it is easy to do. Further, at least the openings defined by the bottom surface 13 of the nozzle body 11 and the front ribs 15 and the rear ribs 16 are secured at the left and right ends of the nozzle body 11, so that the suction air flow S is generated from the left and right sides of the nozzle body 11. Will be sucked a lot. Accordingly, when the nozzle 3 is moved back and forth on the surface F to be cleaned, the dust on the surface F to be cleaned is scraped up by the front brush row 17 and the rear brush row 18, The air flows into the inlet opening 14 together with the suction air flow S from the gap between the hair bundles 20 constituting the front brush row 17 and the left and right of the nozzle body 11 and is separated from the suction air flow S by the dust collecting means 4. . For this reason, since the nozzle 3 can suck a large amount of the suction airflow S from the movement destination when moving the nozzle 3, that is, the front and both sides of the user, and the vicinity thereof, the surface to be cleaned F can be satisfactorily improved. Can be cleaned.

  When the nozzle 3 is in the second use state, the nozzle main body 11 is rotated 90 degrees so that the right end 11B is in front by operating the lock operation unit 24. When used in this state, as shown in FIGS. 10 to 12, the nozzle 3 is strongly pressed against the surface to be cleaned F, and the bristle bundle 22 and the rear brush row 18 constituting the front brush row 17 are constituted. The hair bundle 22 is bent. At this time, the total area of the openings surrounded by the bristles 20 of the front brush row 17 and the attachment surface 19 and the surface to be cleaned F is equal to the bristles 22 of the rear brush row 18 and the attachment. Although the total area of the openings surrounded by the surface 21 is larger, the difference between them is not only smaller than the state in which the hair bundles 20 and 22 are upright. However, by projecting downward from the mounting surfaces 19 and 21, the base end side of the gaps of the hair bundles 20 and 22, that is, the wide open portions of the gaps overlap the ribs 15 and 16. Thus, the resistance to the suction air flow S reduces the air flow S flowing through the brush rows 17 and 18 from the side of the nozzle body 11 and flowing into the inlet opening 14 as shown in FIG. At the same time, these suction airflows S are large on the left and right. By way not can be satisfactorily sucked suction airflow S including dust from the front of the nozzle 3. At this time, the suction air flow S is also sucked from behind the nozzle 3, but as described above, the amount flowing into the inlet opening 14 from both the left and right sides of the nozzle 3 is remarkably limited. Therefore, a sufficient amount of the suction air flow S can be sucked from the front of the nozzle 3. As described above, the ribs 15 and 16 protrude downward from the bottom surface 13 of the nozzle body 11, so that the ribs 15 and 16 are at least between the surface to be cleaned F and the bottom surface 13. Since a gap of 16 heights is ensured, even if the nozzle 3 is pressed too much against the surface F to be cleaned, an excessive burden is not imposed on the electric blower 5. Further, in the second use state, the right end 11 </ b> B is forward, so that the connection pipe 26 of the connection member 12 does not overlap the lock operation unit 24. Therefore, when operating the lock operation unit 24 to return from the second use state to the first use state, the connection pipe 26 does not interfere with the operation.

  As described above, the nozzle 3 of the electric vacuum cleaner 1 of the present invention has the nozzle body 11 having the inlet opening 14 formed in the bottom surface 13 and the connection member 12 communicating with the inlet opening 14, and the nozzle body 11 are provided with a front brush row 17 and a rear brush row 18 formed by planting hair bundles 20 and 22 in a row on the front side and the rear side of the 11 inlet openings 14, respectively. When the air flow S containing dust is sucked from the nozzle 3 by making the interval P1 of the nozzle P3 larger than the interval P2 between the hair bundles 22 of the rear brush row 18, the hair bundles constituting the rear brush row 18 Since more airflow S can be sucked from the gap between the hair bundles 20 constituting the front brush row 17 than the gap between the two, the dust can be sucked well from the front of the nozzle 3. It can be done.

  Further, the nozzle 3 of the electric vacuum cleaner 1 of the present invention enables the nozzle body 11 to be rotated with respect to the connecting member 12 so that the right end 11B side of the nozzle body 11 is the front end, and the inlet opening 14 is formed. A pair of ribs 15 and 16 are formed so as to be sandwiched and parallel to the brush rows 17 and 18, and these ribs 15 and 16 are formed to project downward from the attachment surfaces 19 and 21 of the bristles 20 and 22. Thus, in the second use state in which the right end 11B of the nozzle body 11 is the front end, the nozzle 3 is pressed against the surface F to be cleaned, and the bristles 20 and 22 constituting the brush rows 17 and 18 are respectively pressed. When bent, the bristles 20 of the front brush row 17 and the total area of the openings surrounded by the mounting surface 19 and the surface to be cleaned F, the bristles 22 of the rear brush row 18 and the mounting surface Total area of the opening surrounded by 21 Not only is the difference between the bristles 20 and 22 standing upright, but also the attachment surfaces 19 and 21 side of the openings, that is, the wide open portions are different from the ribs 15 and 16. By overlapping, the airflow S that passes through the brush rows 17 and 18 from the side of the nozzle body 11 and flows into the inlet opening 14 is reduced, and the airflow S is not significantly different from right to left. The air flow S containing dust can be satisfactorily sucked from the front of the nozzle 3.

  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 front brush row is provided in front of the front rib and the rear brush row is provided behind the rear rib (that is, each rib is formed inside each brush row). As shown in FIG. 4, in the nozzle 32 having the nozzle body 31 and the connecting member 12, the front rib 35 and the rear are arranged so as to sandwich the inlet opening 34 formed at the center of the bottom surface 33 of the nozzle body 31. A rib 36 is formed, and a front brush row 37 is provided behind the front rib 35, and a rear brush row 33 is provided in front of the rear rib 36 (that is, each brush row 37, 38 inside each rib 35, 36). May be. Further, as shown in FIGS. 16 and 17, in the nozzle 42 having the nozzle body 41 and the connecting member 12, the inlet opening 44 formed at the center of the bottom surface 43 of the nozzle body 41 is sandwiched. In addition, two front ribs 45, 46 and two rear ribs 47, 48 are formed, a front brush row 49 between the front ribs 45, 46, and a rear brush row between the rear ribs 47, 48. 50 may be provided. Further, as shown in FIGS. 18 and 19, in the nozzle 52 having the nozzle body 51 and the connecting member 12, an inlet opening 54 formed at the center of the bottom surface 53 of the nozzle body 51 is sandwiched. In addition, the front rib 55 and the rear rib 56 may be formed, front brush rows 57 and 58 may be provided on the front and rear sides of the front rib 55, and rear brush rows 59 and 60 may be provided on the front and rear sides of the rear rib 56, respectively. .

It is an external view of the whole vacuum cleaner which shows one Embodiment of this invention. It is a front view of the nozzle in a 1st use condition same as the above. FIG. 3 is a right side view of the nozzle in the first use state. It is a top view of the nozzle in a 1st use condition same as the above. FIG. 3 is a bottom view of the nozzle in the first use state. It is a top view which shows the suction | inhalation airflow in a 1st use condition same as the above. It is a front view of the nozzle in a 2nd use condition same as the above. It is a right side view of a nozzle in the 2nd use state same as the above. It is a top view of the nozzle in a 2nd use condition same as the above. It is a front view of the nozzle at the time of pressing a nozzle against a to-be-cleaned surface in a 2nd use condition. FIG. 6 is a right side view of the nozzle when the nozzle is pressed against the surface to be cleaned in the second use state. FIG. 6 is a left side view of the nozzle when the nozzle is pressed against the surface to be cleaned in the second use state. It is a top view which shows the suction | inhalation airflow in a 2nd use condition same as the above. It is a right view of the nozzle which shows other embodiment of this invention. FIG. It is a right view of the nozzle which shows other embodiment of this invention. FIG. It is a right view of the nozzle which shows other embodiment of this invention. FIG.

Explanation of symbols

3, 32, 42, 52 Nozzle 11, 31, 41, 51 Nozzle body 11A Front end 11B Right end 12 Connection member 13, 33, 43, 53 Bottom surface 14, 34, 44, 54 Inlet opening 15, 35, 45, 46, 55 Front rib 16, 36, 47, 48, 56 Rear rib 17, 37, 49, 57, 58 Front brush row 18, 38, 50, 59, 60 Rear brush row 19, 21 Mounting surface 20, 22 Hair bundle F To be cleaned surface

Claims (1)

In a nozzle of a vacuum cleaner having a nozzle body having an inlet opening formed on a bottom surface and a connecting member communicating with the inlet opening,
The only set the brush rows and the rear brush rows before the hair bundle was formed by implanted in a row each having a flexible front and back of the nozzle body of the inlet opening, the tuft between the front brush rows The interval is larger than the interval between the hair bundles of the rear brush row ,
The nozzle body is rotatable with respect to the connecting member so that one of the left and right ends of the nozzle body is a front end, and a pair of ribs are provided in parallel with the brush rows so as to sandwich the inlet opening. Forming and projecting these ribs downward from the mounting surface of the hair bundle,
The nozzle of the vacuum cleaner characterized by making the protrusion amount of the said hair | bristle bundle larger than the protrusion amount of the said rib .

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