JP2012143277A - Suction port body and vacuum cleaner - Google Patents

Abstract

Provided is a floor brush capable of effectively removing dust adhering to a rotating brush without a user directly touching the dust.
A floor brush includes a case body. The floor brush 26 includes a rotating brush 35 that includes a shaft portion 41 that is rotatably supported by the case body 31 and a bristle brush portion 42 that protrudes from the outer surface of the shaft portion 41. The case body 31 includes a suction port 34. The case body 31 includes an opening 36 that communicates with the suction port 34 and allows the rotary brush 35 to be inserted and removed from the suction port 34 in the axial direction. The case body 31 is located at the opening 36, and the scraping portion 58 is urged toward the center of the opening 36. When the rotary brush 35 is removed from the opening 36, the case body 31 scrapes the shaft 41 of the rotating brush 35. A scraping member 55 that slides in contact with the scraping portion 58 and scrapes off the dust D is provided.
[Selection] Figure 1

Description

  Embodiments of the present invention relate to a suction port body having a rotatable rotary cleaning body and a vacuum cleaner including the same.

  Conventionally, a vacuum cleaner includes a vacuum cleaner body that houses an electric blower. The vacuum cleaner main body is provided with a dust collecting portion communicating with the suction side of the electric blower. And the air path is connected to this dust collecting part, and a part of this air path is comprised by the floor brush as a suction inlet. In this floor brush, a horizontally long suction port is formed in an opening on the lower surface facing the surface to be cleaned. A rotary brush as a rotary cleaning body that scrapes off dust on the surface to be cleaned is rotatably disposed at the suction port. In this rotary brush, both ends of a long shaft portion are pivotally supported on both sides of the suction port, and a cleaning member such as a bristle brush protrudes around the shaft portion.

  However, when the surface to be cleaned such as a carpet is cleaned, there is a possibility that dust such as hair will get entangled with the bristle brush. When removing the entangled dust in this way, it is necessary for the user to remove it by hand, or after cutting with a scissors, it must be removed by hand. Cost.

JP 2010-115501 A

  The problem to be solved by the present invention is to provide a suction port body that can effectively remove dust adhering to the rotary cleaning body without the user directly touching the dust, and an electric vacuum cleaner including the same. is there.

  The suction port body of the embodiment includes a case body. In addition, the suction port body includes a rotary cleaning body including a shaft portion that is rotatably supported by the case body, and a cleaning member that protrudes from an outer surface of the shaft portion. The case body includes a suction port. Further, the case body includes an opening that communicates with the suction port and allows the rotary cleaning body to be inserted in the axial direction so as to be detachable from the suction port. Further, the case body is positioned at the opening, and at least part of the case body is biased toward the center of the opening, and when removing the rotating cleaning body from the opening, A scraping member that scrapes at least part of the dust and scrapes off dust is provided.

It is a longitudinal cross-sectional view which shows a part of suction inlet body of 1st Embodiment. It is a longitudinal cross-sectional view which shows the scraping member in the state which removed the rotary cleaning body of the suction inlet same as the above. It is a perspective view which shows the scraping means of a suction inlet same as the above. It is a top view which shows a suction port body same as the above from the upper side. It is a perspective view which shows the vacuum cleaner provided with the suction inlet same as the above. It is a longitudinal cross-sectional view which shows a part of suction inlet body of 2nd Embodiment. It is a longitudinal cross-sectional view which shows the scraping member in the state which removed the rotary cleaning body of the suction inlet same as the above. It is a longitudinal cross-sectional view which shows a part of suction inlet body of 3rd Embodiment.

  The configuration of the first embodiment will be described below with reference to FIGS.

  In FIG. 5, reference numeral 11 denotes a so-called canister-type vacuum cleaner. The vacuum cleaner 11 includes a vacuum cleaner main body 12 and an air passage forming body 13 which is a pipe portion detachably connected to the vacuum cleaner main body 12. And have.

  The vacuum cleaner main body 12 includes a hollow main body case 15 that can swivel and run on the surface to be cleaned, and a main body dust collection chamber and an electric blower chamber (not shown) are partitioned in the front and rear in the main body case 15. Has been. Furthermore, an electric blower 18 is accommodated in the electric blower chamber, and the suction side of the electric blower 18 communicates with the main body dust collection chamber. Further, a dust collecting section such as a filter, a dust collecting bag, or a dust collecting device (dust collecting cup) is disposed in the main body dust collecting chamber. A main body suction port 19 is formed in the front portion of the main body case 15 so as to communicate with the main body dust collection chamber and to which the proximal end side of the air passage forming body 13 is connected.

  The air passage forming body 13 includes a connecting pipe portion 21 connected to the main body suction port 19, a flexible hose body 22 communicating with the tip end side of the connecting pipe portion 21, and a tip end of the hose body 22. A hand operating part 23 provided on the side, an extension pipe 24 detachably connected to the distal end side of the hand operating part 23, and a floor brush as a suction port body connected to the distal end side of the extension pipe 24 And 26. The air passage forming body 13 divides an air passage communicating with the suction side of the electric blower 18 inside.

  The hand operating unit 23 has a grip 28 protruding toward the hose body 22, and the grip 28 is provided with a plurality of setting buttons 29 for setting the operation mode of the electric blower 18.

  Further, the floor brush 26 constitutes a part of the air passage in communication with the suction side of the electric blower 18 in a state where the air passage forming body 13 is connected to the cleaner body 12. As shown in FIG. 4, it is provided with a case body 31 that is long in the left-right width direction, that is, a horizontally long case body 31, and a connecting pipe 32 that is rotatably connected to a rear portion of a substantially central position of the case body 31 in the left-right width direction. It is possible to travel (move) on the surface to be cleaned along at least the front-rear direction.

  The case body 31 has a horizontally-long rectangular suction port 34 formed in a flat lower surface 31a facing the surface to be cleaned. A rotating brush 35 as a rotary cleaning body rotates in the suction port 34. Arranged to be possible. Furthermore, an opening 36 is formed in the side portion of the case body 31 so as to communicate with the suction port 34 and allow the rotary brush 35 to be attached to and detached from the suction port 34. In the case body 31, a motor 37 is disposed as a driving means for driving the rotary brush 35 to rotate. Further, a brush control means 38 as a rotary cleaning body control means for controlling the driving of the motor 37 is arranged inside the case body 31.

  The suction port 34 communicates with the front end side (tip side) that is the upstream side of the connection pipe 32. Further, the suction port 34 has a width dimension (front-rear direction dimension) substantially equal to that of the rotary brush 35 and is located on the front side of the case body 31.

  Further, the rotating brush 35 has a shaft portion 41 that is a brush base portion, and a plurality of bristle brush portions 42 as a cleaning member that are helically attached around the shaft portion 41.

  The shaft portion 41 is formed in a long cylindrical shape by, for example, a synthetic resin having rigidity, and the groove portion 44 and the bristle brush portion 42 are attached to the outer peripheral surface as shown in FIGS. 1 and 4. A mounting recess 45, which is a portion, is formed continuously across both ends. Further, a long shaft body 46 is inserted into a hole 41 a formed at the center of the shaft portion 41, and both end portions of the shaft body 46 protrude from both end portions of the shaft portion 41. The shaft body 46 is connected at one end to a shaft support body 47 (one) rotatably disposed on one side in the suction port 34 of the case body 31, and the other end is It is connected to a cylindrical (other) shaft support 48 as a receiving plate.

  The shaft support 47 is pivotally supported with respect to the case body 31 and is detachably connected to one end of the shaft portion 41. The shaft support 47 is connected to a rotation shaft 37a of the motor 37 via a belt 49 as a transmission means for transmitting the rotational force of the motor 37. The belt 49 is formed in an endless shape, and is wound around the rotating shaft 37a and the outer peripheral surface of the shaft support 47. Therefore, the shaft support 47 is rotationally driven by the rotation of the motor 37.

  Further, the shaft support body 48 is formed in a substantially cylindrical shape, and (one) fitting recess 48a into which the other end portion of the shaft portion 41 is fitted is formed in one end portion so as to be recessed in the axial direction. At the other end, a fitting recess 48b into which the bearing 51 that supports the other end of the shaft body 46 is fitted (the other) is recessed in the axial direction.

  Here, the bearing portion 51 is rotated by inserting the cylindrical holding portion 51a that is integrally fixed to a closing member 53 that is a lid portion that can close the opening portion 36, and the other end portion of the shaft body 46. And a cylindrical bearing body 51b that is pivotally supported.

  Further, the closing member 53 integrally includes a circular plate-like closing member main body 53a corresponding to the opening 36 and a wall portion 53b protruding in the axial direction from the entire circumference of the closing member main body 53a. Further, a boss-like shaft support portion 53c that integrally holds the holding portion 51a of the bearing portion 51 is formed coaxially in the central portion of the closing member main body 53a. The closing member 53 is detachably attached to the opening 36 and is prevented from rotating in the circumferential direction while being attached to the opening 36.

  Further, the groove portions 44 and the mounting recess portions 45 are alternately formed in the circumferential direction of the shaft portion 41, for example, and each have a spiral shape in the axial direction of the shaft portion 41.

  In addition, each bristle brush portion 42 is configured such that the base end portion of the bristle brush 42a, which is a cleaning body, is collected by, for example, a soft attached portion (not shown), and this attached portion extends along each attachment recess 45. Thus, the bristle brush 42a protrudes from the outer surface (outer peripheral surface) of the shaft portion 41 in a wall shape along the radial direction of the shaft portion 41.

  Further, the opening 36 shown in FIG. 3 is formed in a circular shape on one side of the suction port 34, and has a larger diameter than the shaft 41 of the rotating brush 35. Further, a scraping member 55 is attached to the opening 36 so as to face the suction port 34 side and scrape off dust adhering to the rotating brush 35.

  The scraping member 55 is formed of, for example, an elastic member, and corresponds to the number of cylindrical main body portions 57 and the number of groove portions 44 protruding from one end side of the main body portion 57 to the suction port 34 side. A plurality of claw-shaped scraping portions 58 and a stop portion 59 projecting from one end side of the main body portion 57 to the suction port 34 side at a base end portion of the scraping portions 58 are integrally provided.

  The main body 57 is attached to the opening 36 so as to be rotatable in the circumferential direction.

  Each scraping portion 58 scrapes dust D by fitting and slidingly contacting each groove portion 44 when removing the rotating brush 35 from the opening 36 to the outside of the case body 31. It is formed so that the width is narrow and the thickness is small from the end side to the front end side, that is, it is gradually narrowed from the base end side to the front end side, and is arranged at substantially equal intervals in the circumferential direction of the main body portion 57. Further, each scraping portion 58 is biased toward the central axis of the scraping member 55 (main body portion 57), in other words, toward the central side (central axis side) of the opening 36, and the rotary brush 35 is placed in the case. In a state where it is detached from the body 31, the tip end side is formed so as to protrude from the groove 44 of the rotating brush 35 toward the central axis side (FIG. 2). In other words, each scraping portion 58 is elastically pressed (pressed) against each groove portion 44 toward the central axis direction, and the scraping member 55 is contracted when the rotary brush 35 is removed. It is configured to have a diameter.

  Further, the stopper 59 holds the dust D scraped by each scraper 58, and protrudes toward the suction port 34 in a direction intersecting with each scraper 58 in a sectional view. . That is, the stop portion 59 protrudes toward the outer peripheral side of the scraping member 55. Therefore, each scraping part 58 and the stop part 59 are V-shaped in a cross-sectional view. Further, the stopper 59 is formed continuously over the entire outer periphery of the main body 57. Accordingly, a dust reservoir groove 60 is formed along the circumferential direction of the main body 57 between the stopper 59 and the base end of each scraper 58.

  Further, the motor 37 is arranged along the left-right width direction on one side behind the suction port 34 (rotating brush 35).

  The brush control means 38 is, for example, a control board constituting a control circuit, and is disposed on the other side behind the suction port 34 (rotating brush 35).

  The motor 37 and the brush control means 38 are supplied with power from the cleaner body 12 side via an electric wire (not shown) inserted into the air passage forming body 13 shown in FIG. 5, for example.

  Further, the connecting pipe 32 is a part in which the base end side (downstream end side) is detachably connected to the tip end side of the air passage forming body 13 (extension pipe 24), and as shown in FIG. It is located between the brush control means 38. The connecting pipe 32 is formed in an open shape on the tip end side (upstream end side), faces the rear of the rotating brush 35, and communicates with the suction port 34 (FIG. 3).

  Next, the operation of the first embodiment will be described.

  When the floor brush 26 is used for cleaning, a rotating brush 35 is previously attached to the case body 31 as shown in FIG. At this time, when one end side of the rotating brush 35 is inserted into the case body 31 from the opening 36 shown in FIG. 3, each scraping portion 58 of the scraping member 55 is placed on each outer peripheral surface of the shaft portion 41 of the rotating brush 35. The groove portions 44 are respectively fitted. In the initial state where one end side of the rotating brush 35 is inserted into the case body 31 from the opening 36, the position of each scraping portion 58 and the position of each groove portion 44 of the shaft portion 41 of the rotating brush 35 are temporarily Even if they are misaligned, when the rotating brush 35 is further pushed into the case body 31, each scraping portion 58 comes into contact with one end portion of the shaft portion 41 so that the scraping member 55 is forcibly rotated in the circumferential direction. Since each scraping portion 58 and each groove portion 44 are aligned by being moved, each scraping portion 58 is fitted in each groove portion 44. In this state, when the rotating brush 35 is further pushed into the case body 31, the tip side of each scraping portion 58 opens from the state shown in FIG. 2 in the radial direction against the bias as shown in FIG. Elastically deforms (expands diameter). Then, one end portion of the shaft body 46 protruding from one end portion of the shaft portion 41 of the rotating brush 35 is connected and fixed to the shaft supporting body 47 so that the one end portion of the rotating brush 35 is connected to the case (via the shaft supporting body 47). It is pivotally supported with respect to the body 31 so as to be rotatable. Further, the other end portion of the rotating brush 35 is attached to the case body 31 (via the shaft support portion 53c of the closing member 53) by fitting the closing member 53 into the opening portion 36 and closing the opening portion 36. On the other hand, it is pivotally supported.

  Then, as shown in FIG. 5, the user holds the gripping portion 28 in a state where the floor brush 26 is connected to the tip of the extension tube 24 and operates the desired setting button 29 to set the electric blower 18 in a desired manner. Drive in operation mode. Further, the user causes the floor brush 26 to run alternately on the surface to be cleaned in the front-rear direction, etc., and the dust on the surface to be cleaned together with air from the suction port 34 of the floor brush 26 by the negative pressure generated by driving the electric blower 18. Inhale.

  Further, the user rotates the rotary brush 35 by, for example, an operation of the setting button 29 or the like according to the type of the surface to be cleaned (for example, a carpet). At this time, since the brush control means 38 controls the rotation of the motor 37, the shaft support 47 connected to the rotation shaft 37a of the motor 37 via the belt 49 is rotated. The rotating brush 35 whose one end side is pivotally supported by the shaft rotates. For this reason, dust on the surface to be cleaned is scraped off by the bristle brush portion 42 (the bristle brush 42a) of the rotary brush 35, and the scraped dust is sucked together with air from the suction port 34.

  Dust sucked together with air from the suction port 34 is sucked from the connection pipe 32 into the dust collecting part of the cleaner body 12 through the extension pipe 24, the hose body 22 and the main body suction port 19. Then, dust is collected in the dust collecting portion, and the air in which the dust is collected is sucked into the electric blower 18 and becomes exhaust air while cooling the electric blower 18, and then the cleaner main body 12 is not illustrated. The air is exhausted from the exhaust hole to the outside of the cleaner body 12.

  When cleaning is completed, the user operates the setting button 29 to stop the electric blower 18 and the motor 37, respectively.

  When cleaning (maintenance) the floor brush 26, the user flips the floor brush 26 upside down so that the lower surface 31a of the case body 31 is on the upper side, removes the closing member 53 from the opening 36, and opens the rotating brush 35. The part 36 is pulled out of the case body 31 together with the closing member 53 and the shaft support 48.

  At this time, as shown in FIG. 1, each scraping portion 58 biased toward the central axis side of the scraping member 55 is pressed against each groove portion 44 of the shaft portion 41 of the rotating brush 35 while rotating the rotating brush 35. , The scraping portions 58 are brought into sliding contact with the groove portions 44, and the dust D adhering to the groove portions 44 is scraped off. Since each groove 44 is formed in a spiral shape, the position gradually changes in the circumferential direction as the rotary brush 35 is pulled out, and the scraper 58 is fitted in each groove 44. The member 55 rotates correspondingly in the circumferential direction, and scrapes off the dust such as hair entangled with the shaft portion 41 of the rotating brush 35. As the rotary brush 35 is gradually pulled out from the opening portion 36 to the outside of the case body 31, the dust D thus scraped off is moved toward the proximal end side of the scraping portions 58 along the inclination of the scraping portions 58. And move slowly. Then, the dust D that has moved to the base end portion of each scraping portion 58 is stopped by a stop portion 59 that protrudes in a direction intersecting with the scraping portion 58 and stored in a state where it is held in the dust storage groove portion 60. .

  Further, with respect to portions other than the groove portions 44 of the rotating brush 35, that is, the bristle brush portion 42, when the rotating brush 35 is pulled out from the opening 36 to the outside of the case body 31, other than the scraping portion 58 of the scraping member 55. At this position, the main body 57 or the stopper 59 is sequentially slidably brought into contact with the main body 57 or the stopper 59, so that the adhering dust is scraped off into the suction port 34 by the main body 57 or the stopper 59.

  When the rotary brush 35 is completely removed from the case body 31 to the outside, as shown in FIG. 2, each scraping portion 58 of the scraping member 55 is returned to the central axis side with a biasing force. As a result, the dust D held in the dust storage groove 60 at the base end of the stopper 59 is dropped into the suction port 34 of the case body 31. When the dust D dropped into the suction port 34 is cleaned by the floor brush 26 in which the rotary brush 35 is reattached to the case body 31, the negative pressure of the electric blower 18 does not fall on the surface to be cleaned. It is sucked into the connecting pipe 32 by the action.

  As described above, according to the first embodiment, the opening 36 that allows the rotary brush 35 to be inserted in the axial direction and is attachable to and detachable from the suction port 34 is provided at least toward the center of the opening 36. Part (each scraping part 58) is energized, and when removing the rotating brush 35 from this opening 36, the shaft part 41 of this rotating brush 35 and at least a part (each scraping part 58) are in sliding contact with dust. By providing a scraping member 55 for scraping D, the user can attach the rotating brush 35 by pulling the rotating brush 35 out of the opening 36 and removing it from the suction port 34 without touching the dust D directly. Dust D can be effectively removed.

  Next, a second embodiment will be described with reference to FIGS. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the second embodiment, instead of each scraping portion 58 of the scraping member 55 of the first embodiment, the claw portion 63 rotates around the inner periphery on one end side (the suction port 34 side) of the main body portion 57. It is pivotally supported.

  The claw portion 63 is formed separately from the main body portion 57, is formed along the axial direction of the main body portion 57, and protrudes in a longitudinal shape from one end side of the main body portion 57 to the suction port 34 side. And a stopper 63b protruding from one end side of the main body 57 in a direction intersecting the scraping portion 63a on one end side, and with respect to the inner periphery of the main body 57 A connecting portion 63c connected via a biasing means 65 such as a coil spring is provided on the other end side, and the main body portion 57 is located at a position between the scraping portion 63a and the stopper portion 63b and the connecting portion 63c. There is a shaft support portion 63d that is rotatably supported by the shaft.

  The scraping portion 63a scrapes dust D by fitting and slidingly contacting each groove portion 44 when the rotating brush 35 is removed from the opening 36 to the outside of the case body 31, and from the base end side. It is formed so that the width is narrow and the thickness is small toward the distal end side, that is, the width gradually decreases from the proximal end side to the distal end side.

  The stopper 63b holds the dust D scraped off by the scraper 63a, and protrudes toward the suction port 34 in a direction intersecting the scraper 63a in a cross-sectional view. That is, the stopper 63b protrudes toward the outer peripheral side of the scraping member 55. Therefore, the scraping part 63a and the stopper part 63b are V-shaped in a cross-sectional view. A dust reservoir groove 63e is formed along the circumferential direction of the main body 57 between the stopper 63b and the base end of the scraper 63a.

  Further, the urging means 65 is connected between the connection portion 63c and the inner periphery of the main body portion 57, and the claw portion 63 (scraping portion 63a) is the center of the scraping member 55 (main body portion 57). The shaft is biased toward the center side (center axis side) of the opening 36 in other words. Therefore, the scraping portion 63a is formed so that the tip end side protrudes toward the central axis side from the groove portion 44 of the rotating brush 35 in a state where the rotating brush 35 is removed from the case body 31 (FIG. 7). In other words, the scraping portion 63a is elastically pressed (pressed) toward the groove portion 44 toward the central axis direction, and the scraping member 55 is reduced in diameter when the rotary brush 35 is removed. It is configured as follows. The biasing means 65 may be a torsion spring or the like attached to the shaft support portion 63d, for example, other than the coil spring.

  When cleaning (maintenance) the floor brush 26, the user turns the floor brush 26 upside down so that the lower surface 31a of the case body 31 is on the upper side, removes the closing member 53 from the opening 36, and rotates the rotating brush 35. Is pulled out of the case body 31 together with the closing member 53 and the shaft support body 48 from the opening 36.

  At this time, as shown in FIG. 6, the rotating brush 35 moves while the scraping portion 63 a biased toward the central axis side of the scraping member 55 is pressed against the groove portion 44 of the shaft portion 41 of the rotating brush 35. As a result, the scraping portion 63a comes into sliding contact with the groove portion 44, and the dust D adhering to the groove portion 44 is scraped off. Since the groove portion 44 is formed in a spiral shape, the position gradually changes in the circumferential direction as the rotary brush 35 is pulled out, and the scraping member 55 in which the scraping portion 63a is fitted to the groove portion 44 corresponds. Then, it rotates in the circumferential direction and scrapes off dust, such as hair, entangled with the shaft 41 of the rotating brush 35. As the rotary brush 35 is gradually pulled out from the opening 36 to the outside of the case body 31, the dust D thus scraped off moves toward the base end side of the scraping portion 63a along the inclination of the scraping portion 63a. Move gradually. The dust D that has moved to the base end portion of the scraping portion 63a is stopped by a stopper portion 63b that protrudes in a direction intersecting with the scraping portion 63a, and is stored while being held in the dust reservoir groove portion 63e.

  Further, for the portion other than the groove 44 of the rotating brush 35, that is, the bristle brush portion 42, when the rotating brush 35 is pulled out from the opening 36 to the outside of the case body 31, other than the scraping portion 63a of the scraping member 55. By sequentially slidingly contacting the main body 57 while being deformed at the position, the adhering dust is scraped off into the suction port 34 by the main body 57.

  Then, in a state where the rotary brush 35 is completely removed from the case body 31 to the outside, as shown in FIG. 7, the scraping portion 63a of the scraping member 55 is vigorously restored and deformed toward the central axis side by biasing. As a result, the dust D held in the dust reservoir groove 63e at the base end of the stopper 63b is dropped into the suction port 34 of the case body 31. When the dust D dropped into the suction port 34 is cleaned by the floor brush 26 in which the rotary brush 35 is reattached to the case body 31, the negative pressure of the electric blower 18 does not fall on the surface to be cleaned. It is sucked into the connecting pipe 32 by the action.

  As described above, according to the second embodiment, the opening 36 that allows the rotary brush 35 to be inserted in the axial direction and is attachable to and detachable from the suction port 34 is provided at least toward the center of the opening 36. A part (scraping part 63a) is energized, and when removing the rotating brush 35 from the opening 36, the shaft part 41 of the rotating brush 35 and at least a part (scraping part 63a) come into sliding contact with dust D. By providing the scraping member 55 for scraping, the dust attached to the rotating brush 35 can be removed by simply pulling the rotating brush 35 from the opening 36 and removing it from the suction port 34 without directly touching the dust D. D can be effectively removed.

  In the second embodiment, a plurality of claw portions 63 may be disposed corresponding to the groove portions 44 of the shaft portion 41 of the rotating brush 35.

  Next, a third embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to said each embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the third embodiment, in each of the above embodiments, a recess 68 is formed at a position facing the upper side of the suction port 34 of the case body 31.

  The recess 68 is collected when the dust D scraped from the rotary brush 35 by the scraping member 55 is dropped from the scraping member 55 to the suction port 34 with the rotary brush 35 removed from the suction port 34. The suction port 34 is formed in a longitudinal shape over the entire longitudinal direction of the suction port 34 along the left-right width direction that is the longitudinal direction of the suction port 34.

  Then, when cleaning (maintenance) the floor brush 26, the user flips the floor brush 26 upside down so that the lower surface 31a of the case body 31 is on the upper side, removes the closing member 53 from the opening 36, and removes the rotating brush 35. When it is pulled out of the case body 31 together with the closing member 53 and the shaft support body 48 from the opening 36, the dust D attached to the groove 44 of the rotating brush 35 is scraped off by the scraping member 55, and the groove of the rotating brush 35 is also removed. In a state where dust other than 44, that is, dust adhering to the bristle brush portion 42 is scraped off into the suction port 34 and the rotary brush 35 is completely removed from the case body 31 to the outside, these dust particles It is dropped into the suction port 34. At this time, these dusts are collected in the recess 68, and when the rotary brush 35 is cleaned with the floor brush 26 remounted on the case body 31, the negative pressure of the electric blower 18 does not fall on the surface to be cleaned. Is sucked into the connecting pipe 32.

  As described above, according to the third embodiment, the recess 68 is provided at a position facing the suction port 34 of the case body 31, and the suction port 34 has a width dimension substantially equal to that of the rotating brush 35. The dust removed from the rotary brush 35 by the member 55 and dropped into the suction port 34 can be held more reliably, and when cleaning the floor brush 26 with the rotary brush 35 reattached to the case body 31, the dust is removed. Without being dropped on the surface to be cleaned, it can be more reliably sucked into the cleaner body 12 side.

  Then, according to at least one embodiment described above, the opening 36 that is inserted in the axial direction through the rotary brush 35 and is detachable from the suction port 34 is at least toward the center side of the opening 36. A part (scraping part 58, 63a) is energized, and at the time of removing the rotating brush 35 from the opening 36, the shaft part 41 of the rotating brush 35 and at least a part (scraping part 58, 63a) are in sliding contact. By providing the scraping member 55 for scraping off the dust D, the user can pull out the rotating brush 35 from the opening 36 and remove it from the suction port 34 without touching the dust D directly by the user. The dust D adhering to can be effectively removed.

  Further, when removing the rotating brush 35 from the opening 36, a groove 44 that fits in a state where at least a part of the scraping member 55 (the scraping portions 58 and 63a) is biased is provided in the axial direction of the shaft portion 41. By having it along, the dust D adhering to the shaft portion 41 can be more effectively removed by the sliding contact between the scraping portions 58 and 63a and the groove portion 44.

  Further, the groove portion 44 is formed in a spiral shape with respect to the shaft portion 41, and the scraping member 55 is rotatably provided in the opening portion 36, so that the shaft portion can be removed when the rotary brush 35 is removed from the opening portion 36. Since the position of the groove portion 44 gradually shifts in the circumferential direction of 41, the scraping member 55 in which the scraping portions 58 and 63a are fitted in the groove portion 44 gradually rotates in the circumferential direction. For this reason, thread-like dust such as hair entangled in the circumferential direction with the rotating brush 35 (the shaft portion 41) can be more efficiently removed while the entanglement is released by the rotating scraping member 55.

  The scraping member 55 reduces the diameter by urging the scraping portions 58 and 63a toward the center of the opening 36 when the rotating brush 35 is removed, so that the scraping member 55 is scraped off when the rotating brush 35 is removed. The portions 58 and 63a can be brought into sliding contact with the shaft portion 41 (the groove portion 44) more reliably, and the dust D adhering to the groove portion 44 of the shaft portion 41 can be more efficiently removed.

  Further, the scraping member 55 protrudes from the main body portion 57 attached to the opening portion 36, is urged toward the center side of the opening portion 36, and is removed from the opening portion 36. The scraping portions 58 and 63a pressed against each other), and projecting from the main body portion 57 in a direction intersecting the scraping portions 58 and 63a from the base end side of the scraping portions 58 and 63a. By having stop portions 59 and 63b for stopping the dust D removed from the shaft portion 41 (groove portion 44) by the shafts 58 and 63a, the dust D removed by the scraping portions 58 and 63a is removed from the outer periphery of the main body portion 57. And the inner periphery of the opening 36 can be reliably prevented by the stop portions 59 and 63b, and a decrease in the pivotability of the scraping member 55 due to clogging of dust D can be reliably prevented.

  Furthermore, the vacuum cleaner 11 including the floor brush 26 is hygienic and easy to maintain, and is easy to use.

  In each of the above embodiments, as the cleaning member of the rotating brush 35, not only the bristle brush portion 42 but also any cleaning member such as a beater portion that scrapes off dust adhering to the surface to be cleaned, that is, a blade, may be used. Alternatively, a plurality of different types of cleaning members may be used in combination.

  Further, instead of the motor 37 and the brush control means 38, the rotary brush 35 may be rotated by any driving means such as an air turbine.

  Furthermore, the details of the vacuum cleaner body 12 are not limited to the above configuration, and are not limited to the canister type. For example, the connecting pipe 32 of the floor brush 26 is connected to the lower end of the vacuum cleaner body 12 that is longitudinal in the vertical direction. The upright type vacuum cleaner can be used correspondingly.

  And although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

11 Vacuum cleaner
12 Vacuum cleaner body
18 Electric blower
26 Floor brush as inlet
31 Case body
34 Suction port
35 Rotating brush as rotating cleaning body
36 opening
41 Shaft
42 Bristle brush as a cleaning member
44 Groove
55 Scraping material
57 Main unit
58, 63a scraping part
59, 63b Stopping part
68 recess

Claims (7)

The case body,
A shaft portion rotatably supported on the case body, and a rotary cleaning body provided with a cleaning member protruding from the outer surface of the shaft portion;
The case body is
The inlet,
An opening that communicates with the suction port and allows the rotary cleaning body to be inserted into and removed from the suction port in the axial direction;
At least a part of the rotating cleaning body is urged toward the center of the opening, and when the rotating cleaning body is removed from the opening, the shaft section and at least a part of the rotating cleaning body slide with each other. A suction port body comprising a scraping member that contacts and scrapes off dust. The shaft portion has a groove portion along the axial direction that fits in a state in which at least a part of the scraping member is biased when the rotary cleaning body is removed from the opening portion. The inlet port described. The groove portion is formed in a spiral shape with respect to the shaft portion,
The suction port body according to claim 2, wherein the scraping member is rotatably provided in the opening. The suction port body according to any one of claims 1 to 3, wherein the scraping member is reduced in diameter by urging toward the center side of the opening when the rotary cleaning body is removed. The case body includes a recess at a position facing the suction port,
The suction port body according to any one of claims 1 to 4, wherein the suction port has a width dimension substantially equal to that of the rotary cleaning body. The scraping member
A main body attached to the opening;
A scraping portion that protrudes from the main body portion, is urged toward the center side of the opening portion, and is pressed against the shaft portion of the rotary cleaning body that is removed from the opening portion;
It has a stop portion that protrudes from the main body portion in a direction intersecting the scraping portion from the base end side of the scraping portion, and stops dust removed from the shaft portion by the scraping portion. The suction inlet according to any one of claims 1 to 5, wherein: A vacuum cleaner body containing an electric blower,
A vacuum cleaner comprising: a suction port body according to any one of claims 1 to 6 communicating with a suction side of the electric blower.

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