JP2011188951A - Suction opening body and vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make it possible to certainly prevent dust such as waste thread and hair from getting twisted round the cleaning member of a rotation cleaning object. <P>SOLUTION: In a suction opening body 26 equipped with a suction opening body part 31 which includes a case body 34, in which a suction opening 28 is opened on the bottom side and a rotation cleaning object 30, which faces to the suction opening 28 within this case body and is arranged in a way able to rotation drive, the rotation cleaning object 30 includes a rotary shaft 43 which is rotation driven, two or more cleaning brushes 44 for dust removing prepared axially along the rotary shaft and circumferentially along the rotary shaft 43 in the outer periphery part of this rotary shaft, and tangle preventing blades 45, which are prepared between the cleaning brushes 44 axially along the rotary shaft and circumferentially along the rotary shaft in the outer periphery part of the rotary shaft, are formed so that the shape of a tip portion 45B inclines along a longitudinal direction, and prevent dust from getting twisted round the cleaning brush 44. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a suction port body including a rotary cleaning body that can be driven to rotate, and a vacuum cleaner including the suction port body.

  A suction opening body of a conventional vacuum cleaner is provided with a rotating cleaning body provided with a cleaning member made of brush hair, felt, or the like. Dust on a surface to be cleaned such as a carpet while rotating the rotating cleaning body. It is known to scrape off and clean it by suction.

  Moreover, in the vacuum cleaner of patent document 1, the rotary cleaning body (rotary brush) of a suction inlet body (suction tool case) is a brush made of vinyl chloride on the base side of the felt cleaning member (brush body). There is disclosed a body having a body and preventing dust such as lint and hair from being entangled with the felt brush body by the vinyl chloride brush body.

JP 2005-13525 A

  However, in the rotary cleaning body of the suction port body described in Patent Document 1, since the tip shape of the brush body made of vinyl chloride is formed in parallel with the axis of the rotary cleaning body, the felt brush of the rotary cleaning body. The lint and hair wound around the body gather in one place and get entangled. As a result, the felt brush body (cleaning member) cannot be sufficiently prevented from being entangled with dust such as lint and hair.

  An object of the present invention is made in consideration of the above-described circumstances, and provides a suction port body and a vacuum cleaner that can reliably prevent dust such as lint and hair from getting entangled with a cleaning member of a rotary cleaning body. There is to do.

  A suction port body according to the present invention includes a case body having a suction port opened on the bottom surface side, and a rotary cleaning body disposed in the case body so as to be able to rotate and face the suction port. The rotary cleaning body is provided with a plurality of rotating cleaning shafts, and a plurality of rotating cleaning members on the outer periphery of the rotating shaft along the axial direction of the rotating shaft and in the circumferential direction of the rotating shaft. A plurality of dust removing cleaning members, and a plurality of cleaning members provided between the cleaning members along the axial direction of the rotating shaft and in the circumferential direction of the rotating shaft on the outer peripheral portion of the rotating shaft. And an entanglement preventing member that prevents the entanglement of dust on the cleaning member.

  Moreover, the vacuum cleaner which concerns on this invention is equipped with the suction inlet body of the said invention.

  According to the suction port body and the vacuum cleaner provided with the suction port body according to the present invention, the tip shape of the rotary cleaning body is inclined along the longitudinal direction between the cleaning members on the outer peripheral portion of the rotating shaft. Since the entanglement preventing member that prevents the entanglement of dust on the cleaning member is provided, it is possible to reliably prevent entanglement of dust such as lint and hair on the cleaning member of the rotary cleaning body.

The perspective view which shows the whole external appearance of the vacuum cleaner to which 1st Embodiment of the suction inlet concerning this invention was applied. The perspective view which shows the suction inlet body of FIG. Sectional drawing which follows the III-III line | wire of FIG. The perspective view which shows the rotary cleaning body of FIG. Sectional drawing which follows the VV line of FIG. (A) is a front view showing the entanglement prevention blade of FIGS. 4 and 5, (B) is a front view showing a comparative form of the entanglement prevention blade of FIG. 6 (A). The front view which shows the prevention blade with a tangle of the rotary cleaning body in 2nd Embodiment of the suction inlet concerning this invention. The perspective view which shows the rotary cleaning body in 3rd Embodiment of the suction inlet body which concerns on this invention. Sectional drawing which follows the IX-IX line of FIG.

  The best mode for carrying out the present invention will be described below with reference to the drawings. However, the present invention is not limited to these embodiments.

[A] First embodiment (FIGS. 1 to 6)
FIG. 1 is a perspective view showing an overall appearance of a vacuum cleaner to which a first embodiment of a suction port body according to the present invention is applied. FIG. 2 is a perspective view showing the suction port body of FIG.

  A vacuum cleaner 1 shown in FIG. 1 is a so-called canister-type vacuum cleaner. The electric vacuum cleaner 1 includes a cleaner main body 2 disposed on a surface to be cleaned, and a pipe portion 3 detachably connected to the cleaner main body 2.

  The vacuum cleaner main body 2 communicates with the main body case 5, a pair of wheels 6 pivotally supported on both sides of the main body case 5, a dust collection chamber 10 provided in the main body case 5, and the dust collection chamber 10. The electric blower 8, the main body control unit 9 that controls driving of the electric blower 8, and the power cord 11 that guides electric power to the electric blower 8 are provided.

  The main body case 5 has a main body connection port 12 communicated with the dust collection chamber 10. The dust collection chamber 10 accommodates the dust collection unit 7. The dust collecting unit 7 separates and collects dust from air (dust-containing air) containing dust sucked into the vacuum cleaner 1 by the negative pressure generated by the electric blower 8. The wheel 6 is a large-diameter traveling wheel for traveling of the cleaner body 2. Furthermore, the power cord 11 includes a power plug 14 at the free end.

  The main body control unit 9 has a plurality of preset operation modes. Each operation mode is associated with an operation signal input from the pipe section 3 and set with different output values to the electric blower 8. Then, the main body control unit 9 selectively selects an arbitrary operation mode from the plurality of operation modes in response to the operation signal input from the tube unit 3 and drives the electric blower 8.

  The pipe part 3 sucks dust-containing air from the surface to be cleaned by the negative pressure acting from the cleaner body 2 as the electric blower 8 is operated, and guides it to the cleaner body 2. The pipe part 3 is detachably connected to the main body connection port 12 of the vacuum cleaner body 2, and a dust collection hose body 20 including a connection pipe 19, a dust collection hose 21, and a hand operation pipe 22 connected in communication with each other; The dust collection hose body 20 includes an extension pipe 25 that is detachably connected to and communicates with a hand operation pipe 22 of the dust collection hose body 20 and a suction port body 26 that is detachably connected to the extension pipe 25 and communicates therewith.

  The connection pipe 19 of the dust collection hose body 20 is detachably connected to the main body connection port 12 of the cleaner body 2. Moreover, the dust collection hose 21 is formed in the elongate substantially cylindrical shape which has flexibility. Further, a gripping portion 23 is projected from the hand operation tube 22, and an operation portion 24 is provided on the gripping portion 23. The grip part 23 is operated by the user of the vacuum cleaner 1 to operate the vacuum cleaner 1. The grip portion 23 protrudes from the other end portion side of the hand operation tube 22 and is bent toward one end portion of the hand operation tube 22.

  The operation unit 24 includes a switch corresponding to each operation mode. Specifically, the operation unit 24 includes a stop switch 24A that operates to stop the operation of the electric blower 8, and a start switch 24B that operates to start the operation of the electric blower 8. The start switch 24B may include a weak operation switch (not shown), a medium operation switch (not shown), and a strong operation switch (not shown). The user of the vacuum cleaner 1 operates the operation unit 24 to selectively select the operation mode of the electric blower 8.

  The extension tube 25 is formed in an elongated and substantially cylindrical shape that can be expanded and contracted. The extension pipe 25 is formed in a telescopic structure by superposing a plurality of cylindrical bodies. One end of the extension pipe 25 is detachably connected to the other end of the hand operation tube 22 of the dust collection hose body 20, and is connected via the dust collection hose body 20 (the hand operation tube 22, the dust collection hose 21 and the connection tube 19). It communicates with the interior of the vacuum cleaner body 2.

  The suction port body 26 is detachably connected to the other end of the extension pipe 25 and communicates with the inside of the cleaner body 2 via the extension pipe 25 and the dust collecting hose body 20. In addition, the suction port body 26 is configured to be able to travel on a surface to be cleaned such as a wooden floor or a carpet, and has a suction port 28 on the bottom surface side facing the surface to be cleaned in the traveling state. The suction port body 26 will be described in detail later.

  When the start switch 24 </ b> B is operated, the electric vacuum cleaner 1 drives the electric blower 8 in the cleaner body 2 to apply a negative pressure (suction negative pressure) in the dust collection chamber 10 of the cleaner body 2. This negative pressure acts on the suction port 28 of the suction port body 26 from the main body connection port 12 through the dust collecting hose body 20 and the extension pipe 25. Due to the negative pressure acting on the suction port 28, the vacuum cleaner 1 sucks dust collected on the surface to be cleaned together with air from the suction port 28 to clean the surface to be cleaned. The dust-containing air sucked from the suction port 28 is separated into air and dust by the dust collecting unit 7 accommodated in the dust collecting chamber 10. The separated dust is collected by the dust collecting unit 7. On the other hand, the separated air passes through the dust collector 7 and is sucked into the electric blower 8 and exhausted from the cleaner body 2.

  As shown in FIGS. 2 and 3, the suction port body 26 includes a substantially rectangular parallelepiped box-shaped suction port main body portion 31 and a multi-axis connection pipe portion 32 with respect to the suction port main body portion 31.

  Here, let the advancing direction (solid arrow X in FIG. 2) of the suction inlet 26 be a front, and let the opposite direction be a back. Further, with the suction port body 26 arranged on a substantially horizontal surface to be cleaned such as a floor surface, the left side (indicated by a solid arrow Y in FIG. 2) when viewed from the rear is on the left side and the opposite direction is on the left side. The right side. Further, the + Z direction of the right-handed coordinate system orthogonal to the front-rear direction and the left-right direction of the suction port body 26 is defined as the upper direction, and the opposite direction is defined as the lower direction.

  The suction port body 31 has a case body 34 in which a suction port 28 is opened on the bottom surface side and communicated with the suction port 28 to form a suction chamber 33, and the suction port 28 in the suction chamber 34 of the case body 34. And a rotary cleaning body 30 arranged so as to be rotatable and driven.

  The case body 34 has a short side in the front-rear direction and a long side in the left-right direction in plan view, and includes a lower case 35, an upper case 36, and a cover 37. The lower case 35 is configured in a box shape having an upper opening. The upper case 36 covers the rear upper half of the lower case 35, and the cover 37 covers the front upper half of the lower case 35. The cover 37 and the lower case 35 form a suction chamber 33 that is broadly partitioned in the left-right direction of the case body 34.

  The suction port 28 provided in the case body 34 includes a bottom suction port 38 and a front suction port 39 that are continuous with each other. The bottom surface suction port 38 is opened in a rectangular shape extending in the left-right direction on the bottom surface of the case body 34, that is, the bottom surface 35 </ b> A of the lower case 35. The front suction port 39 is continuous with the front side of the bottom surface suction port 38 and is formed by being partitioned by the lower edge of the cover 37. When the suction port body 26 is placed on the surface to be cleaned during cleaning, the bottom surface suction port 38 faces the surface to be cleaned, and the front suction port 39 is directed forward of the suction port body 26.

  The suction chamber 33 is communicated with the external space through the bottom suction port 38 and the front suction port 39. On the other hand, the suction chamber 33 is communicated with the connection pipe portion 32 via a guide pipe 40 disposed between the lower case 35 and the upper case 36.

  The rotary cleaning body 30 disposed in the suction chamber 33 of the case body 34 is transmitted with its driving force via a transmission belt (not shown) or the like by an electric motor (not shown) incorporated in the case body 34, It is rotationally driven in one direction of rotation A. Due to the rotation of the rotary cleaning body 30, dust on the surface to be cleaned is scraped off by the action of a cleaning brush 44 (described later), and is effectively sucked from the suction port 28 (the bottom suction port 38 and the front suction port 39). The rotary cleaning body 30 will be described in detail later.

  The connecting pipe portion 32 is disposed at a substantially central portion in the width direction on the rear side of the suction port main body portion 31. Further, the connection pipe part 32 includes a rotary connection pipe part 41 pivotally supported by the suction port body part 31 and a swing connection pipe part 42 pivotally supported by the rotary connection pipe part 41.

  The rotary connecting pipe portion 41 is pivotally supported by the suction port body portion 31 so as to be rotatable around an axis (an axis that coincides with the X axis or an axis that is parallel to the X axis) along the front-rear direction of the suction port body 26.

  The swing connection pipe portion 42 is swingably provided on the rotary connection pipe portion 41. That is, the oscillating connection pipe portion 42 is pivotally supported so as to be oscillated around an axis perpendicular to the rotation axis of the rotary connection pipe portion 41 (an axis centering on the X axis or parallel to the X axis). The Moreover, the free end part of the swing connection pipe part 42 is detachably connected to the free end part of the extension pipe 25 (FIG. 1).

  Thus, the suction port body 26 applies a negative pressure to the suction chamber 33 of the case body 34 from the extension pipe 25 through the connection pipe portion 32. The negative pressure acts on the suction port 28 (the bottom suction port 38 and the front suction port 39) of the case body 34, and dust on the surface to be cleaned is sucked into the suction chamber 33 together with air, and is sucked into the suction chamber 33. The dust-containing air is introduced into the extension pipe 25 through the connection pipe portion 32.

  Now, the rotary cleaning body 30 is rotatably supported by the lower case 35 of the case body 34, and is provided with a plurality of rotation shafts 43 that are driven to rotate by an electric motor or the like, and an outer peripheral portion of the rotation shaft 43. The cleaning brush 44 as a cleaning member, and the anti-entanglement blade 45 as an anti-entanglement member 45 provided on the outer periphery of the rotating shaft 43 are configured.

  As shown in FIGS. 4 and 5, the rotating shaft 43 is configured in a substantially columnar shape or a substantially cylindrical shape (a substantially columnar shape in the present embodiment). A groove 46 for holding the cleaning brush 44 and a groove 47 for holding the entanglement prevention blade 45 are alternately arranged at substantially equal intervals in the circumferential direction of the rotary shaft 43 at the outer peripheral portion of the rotary shaft 43. Are formed in a spiral shape along the axial direction.

  The cleaning brush 44 is formed in a band shape by brush hair, felt, or the like, and the base end side is held in the groove 46 </ b> A of the groove portion 46 in the rotation shaft 43. As a result, a plurality of cleaning brushes 44 are provided in the outer circumferential portion of the rotating shaft 43 in the circumferential direction of the rotating shaft 43, each having a spiral band shape along the axial direction of the rotating shaft 43, and the diameter of the rotating shaft 43. Protruding in the direction. The cleaning brush 44 scrapes and removes dust on the surface to be cleaned, particularly dust such as lint and hair, when the rotary shaft 43 rotates.

  Further, the entanglement prevention blade 45 is formed in a band shape by rubber, soft resin, or the like, and the base end portion is held in the groove 47 </ b> A of the groove portion 47 in the rotation shaft 43. Thereby, a plurality of anti-tanglement blades 45 are provided between the cleaning brushes 44 at substantially equal intervals in the circumferential direction of the rotating shaft 43 on the outer peripheral portion of the rotating shaft 43, and each of them is spirally formed along the axial direction of the rotating shaft 43. It is in a band shape and is provided so as to protrude in the radial direction of the rotating shaft 43. The protrusion amount of the entanglement prevention blade 45 is set smaller than the protrusion amount of the cleaning brush 44.

  Further, as shown in FIG. 6A, the entanglement preventing blade 45 has a tip portion 45B opposite to the base end portion 45A, which has substantially the same inclination angle θ along the longitudinal direction of the entanglement prevention blade 45. It is formed with an inclination. Thereby, the height dimension H1 between the base end portion 45A and the distal end portion 45B of the entanglement preventing blade 45 is configured to gradually change along the longitudinal direction of the entanglement prevention blade 45.

  If the tip 45B of the entanglement prevention blade 45 is formed in parallel with the base end 45A as shown in FIG. 6B, dust 48 such as lint and hair is concentrated in one place. The cleaning brush 44 and the entanglement prevention blade 45 of the rotary cleaning body 30 are wound around. On the other hand, when the tip 45B of the entanglement prevention blade 45 is inclined as described above, dust 48 such as lint and hair is spiraled to the entanglement prevention blade 45 and the cleaning brush 44 of the rotary cleaning body 30, for example. It is prevented that it winds in a shape and collects and winds in one place. For this reason, the dust 28 such as the yarn waste is easily moved by the suction air sucked from the suction port 28 to the suction chamber 33, and the entanglement of the rotary cleaning body 30 on the cleaning brush 41 is prevented.

  Since it is configured as described above, the following effects can be obtained according to the present embodiment.

  In the rotary cleaning body 30 of the suction port body 26, the shape of the tip portion 45B is inclined between the cleaning brushes 44 on the outer peripheral portion of the rotary shaft 43 along the longitudinal direction, and dust 48 ( A tangling prevention blade 45 for preventing tangling of lint, hair, etc.) is provided. For this reason, the dust 48 such as lint does not collect and wind around the cleaning brush 44 and the entanglement prevention blade 45 of the rotary cleaning body 30; It becomes easy to move by the suction air sucked into the suction chamber 33 from the mouth 28. As a result, it is possible to reliably prevent the dust 48 such as lint from being entangled with the cleaning brush 44 of the rotary cleaning body 30 while ensuring the scraping function of the dust 48 such as lint by the cleaning brush 44 of the rotary cleaning body 30. .

[B] Second embodiment (FIG. 7)
FIG. 7 is a front view showing an anti-entanglement blade of the rotary cleaning body in the second embodiment of the suction port body according to the present invention. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description is simplified or omitted.

  The suction port body of the vacuum cleaner of the present embodiment is different from the suction port body 26 of the first embodiment in the tip shape of the entanglement prevention blade 53 as the entanglement prevention member of the rotary cleaning body 52.

  That is, the entanglement prevention blade 53 of the present embodiment is inclined from both ends in the longitudinal direction L so that the shape of the distal end portion 53B opposite to the base end portion 53A becomes lower toward the central position in the longitudinal direction L. Is formed. Accordingly, the height dimension H2 between the base end portion 53A and the distal end portion 53B of the entanglement prevention blade 53 gradually changes from both ends in the longitudinal direction L so as to be the lowest at the center position in the longitudinal direction L of the entanglement prevention blade 53. Formed.

  A guide tube 40 (FIG. 3) is disposed at the center position in the longitudinal direction L of the entanglement prevention blade 53, that is, the axial center position of the rotary cleaning body 52, and suction air sucked from the suction port 28 of the case body 34 is sucked. It is a location that is concentrated and has a strong suction force. For this reason, the dust 48 such as lint and hair wound around the cleaning brush 44 and the entanglement prevention blade 53 of the rotary cleaning body 52 is located at the center position of the entanglement prevention blade 53 by the strong suction force, that is, the center of the rotary cleaning body 52. It moves to a position and the entanglement with the cleaning brush 44 of the rotary cleaning body 52 is prevented.

  As a result, also in this embodiment, the cleaning brush 44 of the rotary cleaning body 52 secures the function of scraping off dust 48 such as lint and hair, while the cleaning brush 44 is entangled with dust 48 such as lint. Can be reliably prevented.

[C] Third embodiment (FIGS. 8 and 9)
FIG. 8 is a perspective view showing a rotary cleaning body in the third embodiment of the suction port body according to the present invention. In the third embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description is simplified or omitted.

  The suction port body of the vacuum cleaner of the present embodiment is different from the suction port body 26 of the first embodiment in that the cleaning brush 44 and the entanglement prevention blade 45 are provided on the outer periphery of the rotary shaft 63 of the rotary cleaning body 62. This is a point arranged adjacent to the circumferential direction of the rotating shaft 63.

  That is, a plurality of grooves 64 for holding the cleaning brush 44 and the entanglement preventing blade 45 are formed at substantially equal intervals in the circumferential direction of the rotating shaft 63 on the outer peripheral portion of the rotating shaft 63, and each groove portion 64 is formed on the rotating shaft 63. It is formed in a spiral shape along the axial direction. And in the same groove | channel 64A of each groove part 64, the base end parts 44A and 45A of the cleaning brush 44 and the anti-entanglement blade 45 are hold | maintained in a separate state. At this time, the entanglement prevention blade 45 is positioned on the front side in the rotational direction A of the rotary cleaning body 62 with respect to the cleaning brush 44.

  Therefore, according to the present embodiment, the cleaning brush 44 and the entanglement prevention blade 45 formed with the tip inclined are disposed adjacent to each other, so that the lint etc. scraped off by the cleaning brush 44 can be obtained. The dust 48 is prevented from entering the root portion by the entanglement prevention blade 45. Furthermore, the inclined tip shape of the anti-tangle blade 45 prevents dust 48 such as lint scraped off by the cleaning brush 44 from being wound around one place. As a result, dust 48 such as lint scraped off by the cleaning brush 44 is easily moved by the suction air sucked from the suction port 28 of the case body 34 and can be reliably prevented from being entangled with the cleaning brush 44. .

  Further, since the entanglement prevention blade 45 is disposed on the front side in the rotation direction A of the rotation shaft 63 with respect to the cleaning brush 44, the cleaning brush 44 that contacts the surface to be cleaned when the rotation shaft 63 rotates is shown in FIG. As shown by the dotted line, the entanglement prevention blade 45 bends without being obstructed. Thus, since the flexibility of the cleaning brush 44 is not impaired, the function of scraping off dust 48 such as lint by the rotary cleaning body 62 can be sufficiently secured.

  Further, the cleaning brush 44 and the entanglement preventing blade 45 are held separately in the same groove 64 </ b> A of the groove portion 64 in the rotating shaft 63. For this reason, the process of previously integrating the cleaning brush 44 and the entanglement prevention blade 45 becomes unnecessary, and as a result, the assemblability of the rotary cleaning body 62 can be improved.

1 Vacuum Cleaner 26 Suction Port 28 Suction Port 30 Rotating Cleaning Body 31 Suction Port Body 34 Case Body 38 Bottom Suction Port 39 Front Suction Port 43 Rotating Shaft 44 Cleaning Brush (Cleaning Member)
45 Tangle prevention blade (Tangle prevention member)
45B Tying Prevention Blade Tip 52 Rotating Cleaning Body 53 Tangle Prevention Blade (Tangle Prevention Member)
53B Tip portion 62 of tangle prevention blade Rotating cleaning body 64 Groove A Rotating direction of rotating cleaning body

Claims (5)

In the suction port body provided with a suction port body having a case body having a suction port opened on the bottom surface side and a rotary cleaning body arranged to be able to rotate and face the suction port in the case body,
The rotary cleaning body is
A rotating shaft that is driven to rotate;
A cleaning member for dust removal provided on the outer periphery of the rotating shaft along the axial direction of the rotating shaft and in the circumferential direction of the rotating shaft;
A plurality of cleaning members are provided on the outer periphery of the rotating shaft along the axial direction of the rotating shaft and between the cleaning members in the circumferential direction of the rotating shaft, and the tip shape is formed to be inclined along the longitudinal direction. And a entanglement preventing member for preventing entanglement of dust on the member.   The suction port body according to claim 1, wherein the entanglement preventing member is formed such that a tip shape thereof is inclined at substantially the same inclination angle along the longitudinal direction.   The suction port body according to claim 1, wherein the entanglement preventing member is formed to be inclined from both ends so that a tip shape thereof becomes lower toward a longitudinal center position.   The suction port body according to claim 1, wherein the entanglement preventing member is disposed adjacent to the cleaning member and on the front side in the rotation direction of the rotary cleaning body with respect to the cleaning member.   The vacuum cleaner provided with the suction inlet body of any one of Claims 1 thru | or 4.

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