JP4630148B2 - Floor nozzle for vacuum cleaner and electric vacuum cleaner - Google Patents

Description

  The present invention relates to a floor nozzle for a vacuum cleaner and a vacuum cleaner using the same.

A conventional floor nozzle for a vacuum cleaner will be described with reference to FIG. FIG. 8 is an exploded perspective view of the conventional vacuum cleaner floor nozzle when the upper case is removed.
In FIG. 8, a conventional floor nozzle 1 for a vacuum cleaner is provided in a lower case 3 having a suction opening 2 on a front lower surface and a rear portion of the lower case 3 so as to be rotatable. And a connecting pipe 4 connected via an extension pipe, a rotating rotor 5 having a pulley 5a at one end and rotatably attached to the lower case 3, and a belt 6 stretched around the pulley 5a. The motor 7 is configured to rotate the rotary rotor 5.
The rotary rotor 5 includes a rotor 5c that is rotatably supported by the floor nozzle 1 for a vacuum cleaner and has a plurality of grooves (not shown) formed in a spiral shape in the longitudinal direction of the outer peripheral surface, and a cleaning body 5d that is mounted in the grooves. The cleaning body 5d is formed of a woven fabric or a non-woven fabric (for example, see Patent Document 1), formed in a brush shape (for example, see Patent Document 2), or a soft material in a band shape. Some were formed (for example, refer to Patent Document 3).
With the above configuration, when the electric vacuum cleaner is operated and the motor 7 is energized, the rotary rotor 5 rotates, the dust on the surface to be cleaned is scraped up by the cleaning body 5d, and the electric blower (see FIG. It is sucked together with air from the opening 2 by a suction force (not shown).
JP-A-11-009522 JP 2001-161611 A Japanese Patent Laid-Open No. 11-318781

  However, since the cleaning body formed from the woven fabric or nonwoven fabric of the conventional floor nozzle for a vacuum cleaner disclosed in Patent Document 1 is formed in a band shape, it is dust on the side while being bent when the rotary rotor 5 rotates. As a result, the dust removal performance from the surface to be cleaned was not good. Moreover, in the case of the cleaning body formed in the brush shape disclosed in the above-mentioned Patent Document 2, although it is excellent for sweeping out sand debris entering the groove of the surface to be cleaned such as the floor surface, the surface to be cleaned is Since the brush is traced with the tip of each hair, that is, it is traced linearly, the dust removal performance is still poor.

  Also, in the case of the cleaning body formed in a band shape with a soft material such as silicon rubber disclosed in Patent Document 3, dust is generated on the side surface of the cleaning body during rotation as in the case of the cleaning body formed of woven fabric or nonwoven fabric. As a result, the dust removal performance from the surface to be cleaned was not good.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a floor nozzle for a vacuum cleaner and a vacuum cleaner that are excellent in wiping performance as well as dust removal performance.

    In order to solve the above-described conventional problems, the floor nozzle for a vacuum cleaner of the present invention is connected to an electric vacuum cleaner main body incorporating an electric blower and is connected to a vacuum cleaner for rotatably storing a rotary rotor. In the floor nozzle, the rotary rotor includes a rotor having a plurality of groove portions in a longitudinal direction of an outer periphery and a plurality of cleaning bodies having lower ends mounted in the groove portions, and at least one of the cleaning bodies has a substantially entire shape. A strip-shaped portion having a plurality of loop-shaped portions at the end of the surface to be cleaned along the longitudinal direction, and a bent portion formed by bending a flat strip having the loop-shaped portions formed on both sides at a substantially central portion. In the case where the bent portion is mounted in the groove portion of the rotor, and the surface to be cleaned is a wooden floor or a tile, the loop-shaped portion acts to scavenge dust on the floor surface, thereby removing dust. Only improved performance Since the loop-shaped part comes into linear contact with the surface to be cleaned, the polishing effect is also improved, and on the carpet, the loop-shaped part strikes the carpet pile like a whip, so that dust is knocked out of the pile. As a result, the floor nozzle for a vacuum cleaner can be provided with excellent cleaning performance.

  Moreover, the vacuum cleaner of this invention is equipped with the electric blower which generate | occur | produces an attractive force, the dust collection chamber which collects dust, and the floor nozzle for vacuum cleaners of any one of Claims 1-7. Therefore, regardless of the type of the surface to be cleaned, it is possible to provide a vacuum cleaner with greatly improved dust removal performance and excellent cleaning performance.

  The floor nozzle for a vacuum cleaner of the present invention is excellent in the performance of removing dust from the surface to be cleaned, and is also excellent in the polishing performance of a wooden floor or the like.

    A first invention is a floor nozzle for a vacuum cleaner that is connected so as to communicate with an electric vacuum cleaner main body that incorporates an electric blower, and that rotatably houses a rotary rotor. A rotor having a plurality of groove portions and a plurality of cleaning bodies having lower ends mounted on the groove portions, and at least one of the cleaning bodies has a substantially strip shape as a whole and has an end on the surface to be cleaned along the longitudinal direction. A flat band body having a plurality of loop-shaped parts on both sides and having the loop-shaped parts formed on both sides thereof is bent at a substantially central part to be a bent part, and the bent part is attached to the groove part of the rotor However, when the surface to be cleaned is a wooden floor or tile, the loop-shaped part works to scavenge dust on the floor surface, so that the dust removal performance is improved and the loop-shaped part is on the surface to be cleaned. Since it touches linearly, it is polished The effect is also improved, and on the carpet, the loop-shaped part strikes the carpet pile like a whip, so the dust is knocked out of the pile and the dust removal performance is greatly improved, and the cleaning performance is excellent A floor nozzle for a vacuum cleaner can be provided. Further, since the double loop-shaped portion can be easily formed, it can be formed at low cost.

  In the second invention, in particular, a plurality of loop-shaped parts are formed at least in the short direction of the cleaning body of the first invention, and the loop-shaped parts are strengthened so that the dust attached to the surface to be cleaned Can be reliably removed. In addition, if a step is provided between one loop-shaped portion and the other loop-shaped portion formed in a double manner, the area for rubbing the surface to be cleaned increases, and the dust removal performance is further improved.

  According to a third aspect of the invention, in particular, in the cleaning body of the first or second aspect of the invention, the end of one loop-shaped part is cut to form a brush part before the substantially central part is bent. The portion can be easily formed, and sand brushes or the like that have entered the concave portion of the wooden floor or tile can be efficiently removed by the brush portion.

  In particular, the lower part of the cleaning body according to any one of the first to third aspects of the present invention is formed by a support that supports the loop-shaped part and a belt-shaped body that covers the bent part. Since the lower end can be easily mounted in the groove provided in the rotor, the manufacturing cost can be reduced.

  The fifth aspect of the invention is particularly the lower part of the cleaning body according to any one of the first to third aspects of the invention, together with the supporting column part that supports the loop-shaped part, the core wire positioned inside the bent part, and the bent part. Since it is formed with a belt-like body that covers the core wire, and the bent part is sandwiched between the belt-like body and the core wire, the attachment of the support body of the cleaning body becomes firm, and the rigidity of the lower end portion of the cleaning body is enhanced by the core wire, The belt-like body can be easily mounted in the groove provided in the rotor.

  In the sixth aspect of the invention, in particular, after inserting the lower end portion of the cleaning body folded in the groove portion of any one of the first to third aspects of the invention, a pressing member is press-fitted into the groove portion, and the lower end portion of the cleaning body is moved. Since it is fixed, there is no need to attach a strip or molding with a thermoplastic material to the lower end of the cleaning body, and only press the pressing member in the radial direction, so from one end of the groove, the strip It can be performed in a shorter time than inserting a body or a portion formed of a thermoplastic material, and can be formed at low cost.

  In the seventh invention, in particular, the lower end portion of the cleaning body according to any one of the first to sixth inventions is formed of a thermoplastic material, and processing of the lower end portion of the cleaning body attached to the groove portion of the rotor is performed. Since it can be easily and abundantly performed by die molding, the manufacturing cost can be reduced.

An eighth invention includes an electric blower that generates a suction force, a dust collection chamber that collects dust, and the floor nozzle for a vacuum cleaner according to any one of the first to seventh inventions. Irrespective of the type of surface, the dust removal performance is greatly improved, and a vacuum cleaner with excellent cleaning performance can be provided.
Embodiments of the present invention will be described below with reference to the drawings. In addition, this invention is not limited by this Example.

  FIG. 1 illustrates a floor nozzle for a vacuum cleaner according to a first embodiment of the present invention, with reference to FIGS. In addition, since the whole structure of the floor nozzle for vacuum cleaners in a present Example is the same as a prior art example (FIG. 8), about the same part, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  FIG. 1 is an exploded perspective view of the vacuum cleaner floor nozzle in the embodiment with the upper case removed, FIG. 2 is an exploded perspective view of the rotary rotor of the vacuum cleaner floor nozzle, and FIG. The perspective view of the cleaning body of the rotation rotor, (b) is a plan view of the flat belt body of the cleaning body, (c) is a side view of the flat belt body.

  In FIG. 1, the rotary rotor 10 of the vacuum cleaner floor nozzle 9 in the present embodiment is made of a metal material such as aluminum, and is provided so as to open the four grooves 11 evenly in the longitudinal direction of the outer peripheral surface. The rotor 12, a pair of cleaning bodies 13 having a substantially belt-like shape and having a lower end fitted into the groove portion 4 and having a plurality of loop-like portions 13a along the longitudinal direction, and a blade-like soft material such as silicon rubber. The pair of cleaning bodies A17, the cleaning body 13 and the cleaning body A17 are mounted on the rotor 12, and then the holder 14 with pulley on which the belt 6 driven by the motor 7 is stretched while being press-fitted into one end of the rotor 12. And a bearing holder 15 that is press-fitted into the other end of the rotor 12. Reference numeral 16 denotes a bearing for rotatably holding both ends of the rotary rotor 10 on the floor nozzle 1 for a cleaner.

  The protrusion of the cleaning body A17 is set lower than that of the cleaning body 13. Further, in this embodiment, the groove portion 11 provided in the rotor 12 is formed in a spiral shape with a twist angle of 180 degrees over the entire width of the rotor 12, but the twist angle is not limited thereto, It may be 90 degrees, 270 degrees, or 360 degrees.

  Next, the structure of the cleaning body 13 and the method of assembling the rotor 12 will be described with reference to FIG. As shown in FIG. 3 (a), the cleaning body 13 includes a flat strip 13b having a plurality of loop-shaped portions 13a at the tip and a core wire inserted into a lower end 13c of the flat strip 13b bent at a substantially center. 13d and a belt-like body 13e made of a metal thin plate material and sandwiching the lower end portion 13c of the flat belt body 13b together with the core wire 13d. The belt-like body 13e is inserted from one end of the groove portion 11 of the rotor 12, The cleaning body 13 is attached to the rotary rotor 10.

  FIG. 3B is a development view of the flat band 13b of the cleaning body 13. The flat band 13b has a thread 13f in which filaments made of a large number of thin fibers are gathered and loop-shaped portions 13a at both ends. Is formed in a flat band shape, and then the struts 13g are left between the loop-shaped portions 13a at both ends, and the stitches 13m are stitched in the longitudinal direction so as not to fray.

  Next, the flat strip 13b is folded at approximately the center with the core wire 13d interposed therebetween so that the loop-shaped portions 13a on both sides overlap twice, and then the lower end 13c is sandwiched between the strips 13e for cleaning. The body 13 is completed. In this embodiment, the step L is provided between the tip of the loop portion 13a on one side of the flat band 13b and the tip of the loop portion 13a on the other side, but the step L is zero, that is, both You may align the front-end | tip of the loop-shaped part 13a.

  The core wire 13d is necessary for assembling the cleaning body 13, and may be removed after the cleaning body 13 is completed. Moreover, if the cleaning body 13 is assembled without using the core wire 13d, the core wire 13d is of course unnecessary.

  FIG. 4 is an overall side view of the vacuum cleaner to which the vacuum cleaner floor nozzle 9 is connected in the above embodiment. The vacuum cleaner communicates with the dust collection chamber 21, and a vacuum cleaner body 20 provided with a dust collection chamber 21 that collects dust at the front portion and an electric blower chamber 23 that incorporates an electric blower 22 at the rear portion. Are provided with a hose 24 having one end connected to the cleaner body 20 and an extension pipe 26 detachably connected to a handle pipe 25 provided at the other end of the hose 24, The floor nozzle 9 for a cleaner in the present embodiment is connected.

  With the above configuration, when the cleaner body 20 is operated, the handle pipe 25 is operated, and the cleaner floor nozzle 9 is operated on a wooden floor or carpet, the rotary rotor is rotated by the motor 7 built in the cleaner floor nozzle 9. 10 rotates, dust is scraped up by the cleaning body 13, and dust is collected together with air into the dust collecting chamber 21 through the extension pipe 26 and the hose 24 by the suction force of the electric blower 22, and the dust is collected there. .

  Here, the effect | action of the loop-shaped part 13a of the cleaning body 13 is demonstrated using FIG. FIG. 5 (a) is an enlarged view showing a state in which the vacuum cleaner floor nozzle 9 is operated on a wooden floor. When the rotary rotor 10 rotates, the loop-shaped portion 13a of the cleaning body 13 becomes a linear shape and becomes a floor. Since the dust 27 on the floor surface is scraped off while being struck by the surface, the dust 27 on the floor surface can be reliably removed and sucked. In addition, the front-end | tip of cleaning body A17 whose protrusion margin is smaller than the cleaning body 13 does not hit a wooden floor or a tile surface, and only idles.

  FIG.5 (b) is an enlarged view which shows a mode when the floor nozzle 9 for vacuum cleaners is drive | operated on a carpet, and when the rotary rotor 10 rotates, the loop-shaped part 13a of the cleaning body 13 will become a carpet like a whip. The dust 27 stuck to the pile 28 is screened out, and the dust 27 that has been screened up is rolled up by the cleaning body A17 that comes after that. Can be sucked.

  As described above, according to the present embodiment, when the surface to be cleaned is a wooden floor or a tile, the loop-shaped portion 13a acts to scavenge dust on the floor surface, thereby improving the dust removal performance. Since the loop-shaped portion 13a contacts the surface to be cleaned in a linear shape, the polishing effect is improved. On the carpet, the loop-shaped portion 13a strikes the carpet pile 28 like a whip, so that the dust strikes the pile 28. Since the dust removal performance is greatly improved, the floor nozzle 9 for a vacuum cleaner having excellent cleaning performance can be provided.

  Moreover, since the loop-shaped part 13a is formed in double in the cleaning body 13, the strain of the loop-shaped part 13a becomes strong, and the dust adhering to the to-be-cleaned surface can be removed reliably. Further, if a step is provided between the double loop-shaped portion 13a and the other loop-shaped portion 13a, the area for rubbing the surface to be cleaned is increased, and the dust removal performance is further improved.

  In addition, since a plurality of loop-shaped portions 13a are formed on both sides along the longitudinal direction of the flat band 13b of the cleaning body 13 and the double-loop-shaped portions 13a are formed simply by bending them at the center. The cleaning body 13 can be formed at a low cost.

  Further, before bending the substantially central portion of the flat strip 13b, the end of the loop portion 13a on one side is cut to form the brush portion 13k, so that the brush portion 13k can be easily formed. By the brush portion 13k, sand dust and the like that have entered the concave portion of the wooden floor or tile can be efficiently swept out.

  Furthermore, the lower part of the cleaning body 13 is covered with a support column 13g that supports the loop-shaped portion 13a, a core wire 13d that is positioned inside the bent portion (lower end portion 13c), and a strip-shaped body 13e that covers the core wire 13d together with the bent portion. By forming, since the bent portion is sandwiched between the belt-like body 13e and the core wire 13d, the attachment of the column portion 13g of the cleaning body 13 becomes firm, and the rigidity of the lower end portion of the cleaning body 13 is increased by the core wire 13d. The strip 13e can be easily mounted in the groove 11 provided in the rotor 12.

  In the above embodiment, the lower end 13c of the cleaning body 13 is sandwiched between the strips 13e. However, as shown in FIG. 6A, the lower end 13c of the cleaning body 13 is made of thermoplastic resin, rubber, or the like. If the thermoplastic material 13h is integrally formed, the core wire 13d and the belt-like body 13e are not required, and the number of parts can be reduced, and the lower end portion 13c of the cleaning body 13 in the groove portion 11 of the rotary rotor 10 is achieved. Chatter noise can be reduced. Moreover, since the processing of the lower end portion 13c of the cleaning body 13 can be easily performed in a large amount by die molding, the manufacturing cost can be reduced.

  Further, as shown in FIG. 6B, the flat belt body 13 b of the cleaning body 13 may be folded in two and the portion may be put into the groove portion 11 provided in the rotor 12 and directly press-fitted with the pressing member 18. According to this method, there is no need to form the belt-like body 13e or the thermoplastic material 13h, and the presser member 18 is only press-fitted from the radial direction. Since it can be performed in a shorter time than inserting a portion formed of the material 13h, it can be formed at a low cost.

  Fig.7 (a) is a partial top view of the flat belt body of the cleaning body of the floor nozzle for cleaners in the 2nd Example of this invention, (b) is a partial side view of the cleaning body. The same parts as those in the first embodiment are designated by the same reference numerals and the description thereof is omitted.

  In the present embodiment, as shown in FIG. 7A, the end of one loop-like portion 13a is cut along the line L in a state where the flat band 13b is spread to form a brush portion 13k. As shown in FIG. 7 (b), the flat band 13b is bent and incorporated in the cleaning body 13, so that the loop-shaped portion 13a is arranged on one end of the cleaning body 13 and the brush portion 13k is arranged on the other side. Will be. In this embodiment, the brush portion 13k is slightly protruded from the loop-shaped portion 13a.

  With the above configuration, when the vacuum cleaner floor nozzle 9 is operated on the wooden floor or tile surface, the brush portion 13k protruding from the loop-shaped portion 13a is formed on the groove (not shown) of the wooden floor or the surface of the tile. Dust removal performance is improved by efficiently sweeping out sand and other debris that has entered the recess. Since the action of cleaning by the loop-shaped portion 13a is the same as that of the first embodiment, the description thereof is omitted. In the above embodiment, the brush portion 13k is formed by cutting one loop-shaped portion 13a in a state where the flat strip 13b is expanded, but the flat strip 13b having the loop-shaped portions 13a at both ends is bent. You may make it cut | disconnect the edge part of one loop-shaped part 13a later.

  Further, the vacuum cleaner floor nozzle 9 in the first and second embodiments is connected to an electric vacuum cleaner including an electric blower 22 that generates suction force and a dust collecting chamber 21 that collects dust. Thus, regardless of the type of the surface to be cleaned, the dust removal performance can be greatly improved, and a vacuum cleaner with excellent cleaning performance can be provided.

  As described above, the floor nozzle for a vacuum cleaner according to the present invention has excellent dust removal performance regardless of the type of the surface to be cleaned, and also has excellent polishing performance for wooden floors, etc., and is connected to a vacuum cleaner. The present invention can be applied not only to a floor nozzle for a vacuum cleaner, but also to a floor cleaning machine or a floor polisher.

The disassembled perspective view of the state which removed the upper case of the floor nozzle for vacuum cleaners in Example 1 of the present invention. Development perspective view of rotary rotor of floor nozzle for vacuum cleaner (A) The perspective view of the cleaning body of the rotation rotor, (b) The top view of the flat belt body of the cleaning body, (c) The side view of the flat belt body Overall side view of a vacuum cleaner connected to the floor nozzle for the vacuum cleaner (A) Partial enlarged view (on the wood floor) showing the action of the cleaning body, (b) Partial enlarged view (on the carpet) showing the action of the cleaning body (A) Sectional drawing which shows the other example of a cleaning body, (b) Partial sectional view which shows the other example of attachment of a cleaning body (A) The partial top view of the flat belt body of the cleaning body of the floor nozzle for vacuum cleaners in Example 2 of this invention, (b) The partial side view of the cleaning body An exploded perspective view showing a conventional floor nozzle for a vacuum cleaner

Explanation of symbols

DESCRIPTION OF SYMBOLS 9 Floor nozzle 10 for vacuum cleaners Rotating rotor 11 Groove part 12 Rotor 13 Cleaning body 13a Loop-shaped part 13k Brush part 18 Holding member

Claims (8)

In a floor nozzle for a vacuum cleaner that is connected so as to communicate with an electric vacuum cleaner body that incorporates an electric blower and that rotatably accommodates a rotary rotor, the rotary rotor has a plurality of grooves in the longitudinal direction of the outer periphery. And at least one of the cleaning bodies has a substantially belt-like shape as a whole and a plurality of loops at the end of the surface to be cleaned along the longitudinal direction. A cleaning device comprising a flat strip having loop portions formed on both sides thereof, bent at a substantially central portion to form a bent portion, and the bent portion is attached to the groove portion of the rotor. Floor nozzle for machine.   The floor nozzle for a vacuum cleaner according to claim 1, wherein a plurality of loop-shaped portions are formed at least double in a lateral direction of the cleaning body. The floor nozzle for a vacuum cleaner according to claim 1 or 2 , wherein a brush portion is formed by cutting an end portion of the loop-shaped portion on one side before bending the substantially central portion. The floor nozzle for a vacuum cleaner according to any one of claims 1 to 3 , wherein a lower portion of the cleaning body is formed of a support portion that supports the loop-shaped portion and a belt-shaped body that covers the bent portion. In any one of Claims 1-3 which formed the lower part of the cleaning body with the support | pillar part which supports a loop-shaped part, the core wire located inside a bending part, and the strip | belt-shaped body which covers the said core wire with the said bending part. Floor nozzle for vacuum cleaner as described. The cleaning according to any one of claims 1 to 3 , wherein after inserting a lower end portion of the cleaning body folded in the groove portion, a pressing member is press-fitted into the groove portion to fix the lower end portion of the cleaning body. Floor nozzle for machine. The floor nozzle for a vacuum cleaner according to any one of claims 1 to 6 , wherein a lower end portion of the cleaning body is formed of a thermoplastic material. An electric vacuum cleaner comprising: an electric blower that generates a suction force; a dust collection chamber that collects dust; and the floor nozzle for a vacuum cleaner according to any one of claims 1 to 7 .

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