JP2005046647A - Suction head for floor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction head for a floor, which can efficiently drive rotation of a brush by a simple construction. <P>SOLUTION: This suction head for a floor is equipped with a suction head body 1 having a suction port 2 on the lower surface, a rotary brush housing chamber 8 formed in the suction head body 1, a rotary brush 11 which faces the suction port 2 and is rotatably housed in the rotary brush housing chamber 8, a guide port 20 which is formed on the suction head body 1 to suck outside air, and a suction passage 26 to guide the outside air sucked through the guide port 20 to an exhaust port 23. The rotary brush 11 is rotated by collision of the outside air sucked through the exhaust port 23. The suction passage 26 is formed so as to be narrowed toward the exhaust port 23. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an improvement of a floor suction tool used in connection with a vacuum cleaner.

  Conventionally, as the seed bed suction tool, a rotary brush is rotatably supported on the suction tool body, and the rotary brush is rotationally driven by an electric motor or a turbine.

  In the case where the rotary brush is driven to rotate by an electric motor, there are disadvantages such as the weight of the electric motor is heavy, the handleability is poor, the structure is complicated, the number of parts is increased, and the assembly workability is poor.

  In the case where the rotating brush is driven to rotate by the turbine, the turbine is arranged in the turbine chamber formed in the suction passage from the suction port to the cleaner body, and is rotated by the air sucked together with dust. Therefore, there has been a problem that dust and the like are entangled in the turbine due to long-term use and the turbine does not rotate well.

  Therefore, in order to solve the above-mentioned drawbacks, in JP-A-9-28630 (A47L 9/04) or the like, a turbine is disposed at both ends of the rotating brush, and external turbine air is supplied to the turbine to supply the turbine. It has been proposed to rotate and suck the air into the vacuum cleaner together with the air sucked from the suction port.

However, in this configuration, it is necessary to dispose a turbine on both sides of the rotating brush, and the number of parts increases, and a large amount of outside air is sucked in order to rotate the turbine. Therefore, it is necessary to efficiently rotate the turbine with a small amount of outside air, and there is a problem that the shape of the turbine becomes complicated. In addition, a suction port cannot be formed on the lower surface of the turbine storage chamber, and the suction port becomes smaller with respect to the width of the suction tool main body, which causes a disadvantage that dust or the like is left behind.
JP-A-9-28630 (A47L 9/04)

  This invention is made | formed in view of the said problem, and makes it a subject to provide the suction tool for floors which can rotationally drive a rotary brush efficiently with a simple structure.

The first means of the present invention includes a suction tool main body having a suction port on the lower surface, a rotary brush storage chamber formed in the suction tool main body, and a rotary brush storage chamber facing the suction port so as to be freely rotatable. A rotating brush that is housed, a guide port that is formed in the suction tool main body and sucks outside air, and an intake passage that guides the outside air sucked from the guide port to the discharge port, and the rotating brush extends from the discharge port. The intake passage is formed so as to be narrowed toward the discharge port by rotating due to a collision of the sucked outside air.
The guide ports are preferably formed at two locations corresponding to both sides of the rotary brush of the suction tool body.

  According to the configuration of the first aspect of the present invention, the intake passage that guides outside air from the guide port to the discharge port is configured to become narrower toward the discharge port. The rotation efficiency of the rotating brush can be improved by increasing the flow rate of outside air that collides with the rotating brush from the discharge port.

  According to the configuration of the second aspect of the present invention, by forming the discharge ports at two positions corresponding to the both end portions of the rotating brush, it is possible to improve the dust removal efficiency on the both end sides where the suction force is the weakest.

  A first embodiment of the present invention will be described below in detail with reference to FIGS.

  Reference numeral 1 denotes a suction tool body, which is supported between an upper case 2, a lower case 3, a lid 4 that is detachably engaged with the upper case 2 and the lower case 3, and the upper and lower cases 2, 3. The rotary pipe 5 is composed of a joint pipe 6 that is rotatably supported by the rotary pipe 5.

  Reference numeral 7 denotes a suction port formed on the bottom surface of the suction tool body 1, and 8 denotes a rotating brush storage chamber formed in the suction tool body 1.

  Reference numeral 9 denotes shaft support portions formed on both sides of the suction tool main body 1 and rotatably supports wheels 27 described later. Reference numeral 10 denotes a partition rib that is suspended from the upper and lower cases 2, 3 of the suction tool body 1, and divides the shaft support portion 10 and the rotary brush storage chamber 8, and external air enters the rotary brush storage chamber 8 via the shaft support portion 10. Is prevented from being sucked.

  Reference numeral 11 denotes a rotating brush that is rotatably accommodated in the rotating brush storage chamber 8 in a state of facing the suction port 7. The rotating brush 11 includes a core body 12 and a helical shape formed on the core body 12. A pair of brush bodies 15 to be mounted by inserting a base portion 14 into the groove 13 and a pair of blades 16 to be mounted by inserting a base portion 18 into the spiral groove 13 of the core body 12. The brush body 15 and the blade 16 are twisted about 90 degrees between both ends of the core body 12.

  The blade 16 includes a cloth-like body 17, a base 18 made of a synthetic resin molded at the end of the cloth-like body 17, and a brush-like body 19 sewn to the end of the cloth-like body 17. By forming the base 18 on the cloth-like body 17, the end of the cloth-like body 17 is deformed so as to wave, and the brush-like body 19 is sewn to the end of the cloth-like body 17. As a result, the cloth-like body 17 is bent and curved. The blade 16 is attached to the core body 12 so as to curve backward with respect to the rotation direction of the rotary brush 11.

  The blade 16 is curved rearward with respect to the rotation direction of the rotary brush 11 as shown in FIG. 4 when the rotary brush 11 is in a rotation stop state and a low-speed rotation state, but the rotary brush 11 is in a high-speed rotation state. Then, as shown in FIG. 5, the centrifugal force accompanying the rotation results in an upright state, and the diameter of the rotation locus in the upright state is larger than the diameter of the rotation locus of the brush body 15. . Further, when the rotary brush 11 is stopped, the brush body 15 and the blade 16 are formed so as not to contact the floor surface even when the suction tool body 1 is placed on the floor surface.

  Reference numeral 20 denotes a guide port formed on the upper surface of the lid 4 and is formed at positions corresponding to both end portions of the rotary brush 11 in the width direction. Reference numeral 21 denotes a first rib formed on the front side of the guide port 20 and constitutes a guide for guiding outside air sucked from the guide port 20 to the brush body 15 and the blade 16 of the rotary brush 11. The first rib 21 hangs down from the back surface of the lid 4 to the rotation center side position of the rotary brush 11 from the foremost position of the rotation locus of the blade 16 and is located within the projection range of the rotation locus. It extends below the highest position of the 15 rotation trajectories.

  Reference numeral 22 denotes a second rib formed on the rear side of the guide port 20 and constitutes a guide for guiding outside air sucked from the guide port 20 to the brush body 15 and the blade 16 of the rotary brush 11. The second rib 22 extends forward from the center of rotation of the rotary brush 11, and a discharge port 23 is formed between the first rib 21 and the tip of the second rib 22.

  A cover body 24 is attached to the lid body 4 by a plurality of locking claws 25 and covers the upper portion of the discharge port 23 so that the discharge port 23 cannot be directly seen from the outside. An intake passage 26 is formed between the first rib 21, the second rib 22, and the cover body 24, and the intake passage 26 is configured to gradually narrow from the guide port 20 toward the discharge port 23.

  Reference numeral 27 denotes a front wheel mounted on the shaft support portion 9 and is formed to have substantially the same diameter as the outer diameter of the suction tool body 1. 28 is a rear wheel pivotally supported at the rear part of the suction tool body 1, 29 is a suction keeper disposed before and after the suction port 7, and is formed of a flexible material such as soft rubber, Suction keeper 29 improves the deep suction force.

  Thus, when the joint pipe 6 is connected to the cleaner body via the flexible hose and the extension pipe and the electric blower of the cleaner body is driven, air is sucked from the suction port 7. In the state where the suction tool body 1 is lifted from the surface to be cleaned, since the suction resistance from the suction port 7 is small, most of the air is sucked from the suction port 7. In this state, since the suction port 7 is greatly opened, the flow rate of the air sucked from the suction port 7 is relatively slow, and therefore the rotating brush 11 hardly rotates.

  When cleaning floors such as flooring and tatami mats, the space between the surface to be cleaned and the suction port 7 is relatively wide, so the suction resistance from the suction port 7 is small, and most of the air is sucked from the suction port 7 Therefore, it is hardly sucked from the guide port 7. In this state, since the air sucked from between the suction port 7 and the surface to be cleaned has a high flow velocity, the air sucked from the suction port 7 collides with the brush body 15 and the blade 16 of the rotating brush 11 and the rotating brush. 11 is rotated counterclockwise in FIG.

  Since the blade 16 is curved rearward with respect to the rotational direction of the rotating brush 11 as shown in FIG. 4 when the rotating brush 11 is in the rotation stopped state or in the low-speed rotating state, the air sucked from the suction port 7 The rotating brush 11 rotates efficiently.

  When the rotating brush 11 rotates at a high speed, the blade 16 stands up by centrifugal force as shown in FIG. In the standing state of the blade 16, the blade 16 comes into contact with the floor surface or the tatami mat to perform polishing and cleaning. Since the blade 16 uses the cloth-like body 17 which is easy to bend, even if it contacts the floor surface or the tatami mat, the floor surface or the tatami mat will not be damaged.

  When cleaning a surface to be cleaned such as a carpet, the suction port 7 is covered with the surface to be cleaned, the suction resistance from the suction port 7 increases, and the amount of outside air sucked from the guide port 20 increases. Since the discharge port 23 is formed to have an extremely small opening area as compared with the intake port 7, the air sucked from the discharge port 23 collides with the brush body 15 and the blade 16 of the rotary brush 11 at a high flow rate, and the rotary brush. 11 is rotated counterclockwise in FIG.

  The first rib 21 hangs down from the foremost position of the rotation locus of the blade 16 to the rotation center side position of the rotating brush 11 and extends downward from the highest position of the brush body 15 rotation locus. It is possible to prevent the outside air sucked from the air from flowing around the front of the rotating brush 11 without colliding with the brush body 15 and the blade 16, and to reliably guide the brush body 15 and the blade 16 to the rotating brush 11. It can be rotated.

  Further, since the second rib 22 extends toward the brush body 15 and the blade 16 from the rotation center of the rotary brush 11, the outside air sucked from the discharge port 23 is removed from the brush body 15 and the blade 16. It is possible to reliably guide the brush body 15 and the blade 16 through the upper part of the rotating brush 11 without contact with the brush, and to reliably guide the rotating brush 11 to rotate. Can be driven.

  Since the intake passage 26 that guides the outside air from the guide port 20 to the discharge port 23 is configured to gradually narrow toward the discharge port 23, the generation of noise due to a change in the air passage area is reduced, and The rotational efficiency of the rotating brush 11 can be improved by increasing the flow velocity of the outside air that collides with the brush body 15 and the blade 16 from the discharge port 23.

  The outside air from the guide port 20 causes dust on the cleaning surface to rise by colliding with the surface to be cleaned, and efficiently removes dust etc. in combination with the suction force of the vacuum cleaner and the lifting force of the rotating brush 11. Since the guide port 20 is formed at a position corresponding to both end portions of the rotating brush 11, dust removal efficiency at both end sides having the weakest suction force can be improved.

  Moreover, it can suppress that the suction tool main body 1 attracts | sucks to a to-be-cleaned surface by attracting | sucking air from the guide port 20, and the mobility of the suction tool main body 1 can be improved.

  When cleaning carpets and the like, the surface to be cleaned becomes a resistance and the rotational speed of the rotating brush 11 decreases, but when the rotational speed of the rotating brush 11 decreases, the blade 16 decreases as the centrifugal force decreases. It gradually curves backward with respect to the rotational direction so as to restore the shape at the time of stopping, and the contact resistance with the surface to be cleaned is lowered and the rotational speed is increased. By repeating this operation, the rotational speed of the rotary brush 11 is maintained substantially constant.

  Since the blade 16 is configured by sewing the brush-like body 19 on the cloth-like body 17, the blade 16 can be easily bent, and the blade 16 can be easily raised by centrifugal force using the brush-like body 19 as a weight. The blade 16 can be raised and curved even by slight fluctuations in the rotational speed of the rotating brush 11, and the rotational speed of the rotating brush 11 can be maintained almost constant.

  In the above embodiment, the blade 16 is composed of the cloth-like body 17, the base 18, and the brush-like body 19. However, the blade 16 may be integrally formed of a flexible material such as soft rubber.

  Moreover, in the said embodiment, although the intake passage 26 was formed by the horizontally long slit, the intensity | strength of the cover body 4 fell and the cover body 4 by pressure fall of the rotary brush storage chamber 8 at the time of cleaning carpets etc. In order to prevent the brush body 15 and the blade 16 from coming into contact with the first rib 21 and the second rib 22 due to deformation to the rotating brush storage chamber 8 side, the intake passage 26 is preferably formed in a plurality of parts. .

  Next, a second embodiment of the present invention will be described in detail below with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  Reference numeral 30 denotes a guide port formed in the lower front part of the suction tool body 1 by positioning the bottom surface in front of the suction port 7 of the suction tool body 1 above the other bottom surface portion. Are formed at positions corresponding to the both end portions, and communicated with the suction port 7.

  A bumper 31 is sandwiched and fixed between the upper case 2 and the lid 4 and the lower case 3, and is formed of a flexible material such as soft rubber. Reference numeral 32 denotes a closing body formed integrally with the bumper 31 so as to close the guide port 30.

  Thus, according to the second embodiment of the present invention, when the joint pipe 6 is connected to the cleaner body through the flexible hose and the extension pipe and the electric blower of the cleaner body is driven, the suction port Air is sucked from 7. In the state where the suction tool main body 7 is lifted from the surface to be cleaned, since the suction resistance from the suction port 7 is small, most of the air is sucked from the suction port 7. In this state, since the suction port 7 is greatly opened, the flow rate of air sucked from the suction port 7 is relatively slow, and the rotating brush 11 hardly rotates.

  When cleaning floors such as flooring and tatami mats, the space between the surface to be cleaned and the suction port 7 is relatively wide, so the suction resistance from the suction port 7 is small, and the pressure between the rotary brush storage chambers 8 is large. There is no negative pressure. Therefore, the closing body 32 that closes the guide port 30 is not deformed to open the guide port 30. In this state, since the air sucked from between the suction port 7 and the surface to be cleaned has a high flow velocity, the air sucked from the suction port 7 collides with the brush body 15 and the blade 16 of the rotating brush 11 and rotates the rotating brush. 11 is rotated counterclockwise in FIG.

  When cleaning the surface to be cleaned such as a carpet, the suction port 7 is covered with the surface to be cleaned, the suction resistance from the suction port 7 increases, the pressure in the rotary brush storage chamber 8 decreases, and FIG. As shown in FIG. 4, the closing body 32 is deformed toward the suction port 7 side to open the guide port 30, and the outside air sucked through the guide port 30 collides with the brush body 15 and the blade 16 to cause the rotating brush 11 to Rotating drive. Since the outside air sucked from the guide port 30 collides with the brush body 15 and the blade 16 in the process of being sucked toward the rotating tube 5, the collision force against the brush body 15 and the blade 16 is strong, and the rotating brush 11 Rotate efficiently.

  The outside air from the guide port 30 causes dust on the cleaning surface to rise by colliding with the surface to be cleaned, and efficiently removes dust and the like in combination with the suction force of the vacuum cleaner and the lifting force of the rotating brush 11. Since the guide port 20 is formed at a position corresponding to both side portions of the rotating brush 11, the dust removal efficiency of the portion with the weakest suction force can be improved.

  Further, by sucking outside air through the guide port 30, the suction tool body 1 can be prevented from adhering to the surface to be cleaned, and the mobility of the suction tool body 1 can be improved.

  A third embodiment of the present invention will be described in detail below with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  Reference numeral 33 denotes a guide port formed in the lid 4 of the suction tool main body 1 and is formed in the central portion of the suction tool main body 1 in the width direction. Reference numeral 34 denotes a guide rib that is suspended from the lid body 4 and guides the outside air sucked from the guide port 33 so as to collide with the surface to be cleaned ahead of the rotary brush 11. Reference numeral 35 denotes a cover that covers the portion of the lid 4 where the guide port 33 is formed with a gap between the lid 4 and a vent 36 that communicates with the guide port 33 through the gap. .

  Thus, when the joint pipe 6 is connected to the cleaner body via the flexible hose and the extension pipe and the electric blower of the cleaner body is driven, air is sucked from the suction port 7. In the state where the suction tool body 7 is lifted from the surface to be cleaned, since the suction port 7 is greatly opened, the flow velocity of the air sucked from the suction port 7 is relatively slow, and therefore the rotating brush 11 almost rotates. There is no.

  When cleaning floors such as flooring and tatami mats, the space between the surface to be cleaned and the suction port 7 is relatively wide, so the suction resistance from the suction port 7 is small, and most of the air is sucked from the suction port 7 Therefore, it is hardly sucked from the guide port 33. In this state, since the air sucked from between the suction port 7 and the surface to be cleaned has a high flow velocity, the air sucked from the suction port 7 collides with the brush body 15 and the blade 16 of the rotating brush 11 and the rotating brush. 11 is rotated counterclockwise in FIG.

  When cleaning a surface to be cleaned such as a carpet, the suction port 7 is covered with the surface to be cleaned, the suction resistance from the suction port 7 increases, and the amount of air sucked from the guide port 33 increases. Since the opening area of the guide port 33 is small, the air sucked from the guide port 33 collides with the surface to be cleaned at a high flow rate, and splashes up dust on the surface to be cleaned and enters the cleaner body together with dust. Sucked. The outside air sucked from the guide port 33 is guided to the surface to be cleaned by the guide ribs 34, collides with the surface to be cleaned at a high flow rate, and efficiently blows up dust on the surface to be cleaned, thereby improving the dust removal efficiency. The air colliding with the surface to be cleaned further collides with the brush body 15 and the blade 16 and rotates the rotating brush 11 counterclockwise in FIG. Since the guide port 33 is formed at a position corresponding to both end portions of the rotating brush 11, it is possible to improve the dust removal efficiency of the portion having the weakest suction force.

  Moreover, it can suppress that the suction tool main body 1 attracts | sucks to a to-be-cleaned surface by attracting | sucking air from the guide port 33, and can improve the mobility of the suction tool main body 1. FIG.

  A fourth embodiment of the present invention will be described in detail below with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  Reference numeral 37 denotes a suction tool body, which is an upper case 38, a lower case 39, a lid body 40 that is detachably engaged with the upper case 38 and the lower case 39, and is rotatably supported between the upper and lower cases 38, 39. The rotating tube 43 includes members 41 and 42, and the joint tube 44 is sandwiched between the upper and lower members 41 and 42 of the rotating tube 43 so as to be movable up and down.

  The upper member 41 of the rotating tube 43 has a sliding member 45 that is slidable relative to the upper member 41, and an engaging claw 46 formed at the end of the sliding member 45 is connected to a joint tube 44. When the joint pipe 44 is rotated upward with respect to the suction tool body 37, the sliding member 45 is engaged with the upper member 41 of the rotary pipe 43. The joint pipe 44 can be rotated up to about 90 degrees with respect to the suction tool main body 37.

  Reference numeral 48 denotes a curved guide portion formed at the front end of the suction port 7 of the lower case 39 so that outside air sucked from a guide port 51 described later collides with the guide portion 48 and is guided to the rotating brush 11 side. It has become. Small wheels 49 are disposed on the lower surface of the guide portion 48.

  50 is a projecting opening formed on both sides of the front end of the lower case 39 so as to communicate with the suction port 7. The suction tool main body including the front wheel 27 is provided with the suction port 7 extending forward of the front wheel 27. The suction port can be formed over the entire width of 1 so that the cleaning efficiency can be improved.

  Reference numeral 51 denotes a guide opening formed in front of the lid body 40 and is formed at positions corresponding to both end portions of the rotating brush 11. 52 is a guide rib that is formed on the rear side of the guide port 51 of the lid 40, and guides the outside air sucked from the guide port 51 toward the guide portion 48. The lower end is extended from the rotational center position of the rotating brush 11 or below the rotational center.

  The rotating brush 11 has a pair of blades 16 similar to those in the first to third embodiments, and a blade 67 formed in a curved shape on the rear side in the rotational direction with rubber or the like.

  53 is an inflow port formed at a position corresponding to the projecting opening 50 in front of the lid body 40, and the air introduced from the inflow port 53 is used to scrape dust located in front of the front wheel 27. It can guide to the suction inlet 7 and can suck now.

  54 is an extended portion that protrudes from the rear center of the lower case 39, and a rear wheel 55 is rotatably supported at the rear end of the extended portion 54. By supporting the lower part of the connecting portion between the rotating pipe 43 and the joint pipe 44 to which the most force is applied by the rear wheel 55, it is possible to prevent the lifting of the suction tool body 37 and maintain the balance. Yes.

  56 is a raising member disposed on the lower surface of the extended portion 54, and the raising member 56 can wipe the floor surface when the suction tool body 37 is moved back and forth.

  A bumper 57 is disposed in the front portion of the suction tool body 37 in a state of being sandwiched between the upper and lower cases 38 and 39, and is formed of a flexible material such as soft rubber and serves as a suction key bar. The suction force of the deep portion is improved by the flap 58 and the suction keeper 59 disposed at the rear portion of the suction port 7. A plurality of protrusions 60 are formed on the back surface of the flap 58 of the bumper 57.When the suction tool body 37 is pulled toward the hand side during cleaning, the protrusion 59 removes lint or the like on the surface to be cleaned such as a carpet. It can be hooked and sucked reliably.

  Thus, when the joint pipe 44 is connected to the cleaner body via the flexible hose and the extension pipe and the electric blower of the cleaner body is driven, air is sucked from the suction port 7. In the state where the suction tool main body 37 is lifted from the surface to be cleaned, since the suction resistance from the suction port 7 is small, most of the air is sucked from the suction port 7. In this state, since the suction port 7 is greatly opened, the flow rate of the air sucked from the suction port 7 is relatively slow, and therefore the rotating brush 11 hardly rotates.

  When cleaning floors such as flooring and tatami mats, the space between the surface to be cleaned and the suction port 7 is relatively wide, so the suction resistance from the suction port 7 is small, and most of the air is sucked from the suction port 7 Therefore, it is hardly sucked from the guide port 51 and the inflow port 53. In this state, since the air sucked from between the suction port 7 and the surface to be cleaned has a high flow velocity, the air sucked from the suction port 7 collides with the blades 16 and 67 of the rotary brush 11, Rotate counterclockwise in FIG.

  When cleaning a surface to be cleaned such as a carpet, the suction port 7 is covered with the surface to be cleaned, the suction resistance from the suction port 7 increases, and the amount of outside air sucked from the guide port 51 and the inflow port 53 increases. To do. Since the opening area of the guide port 51 is extremely smaller than that of the suction port 7, the air sucked from the guide port 51 collides with the guide part 48 of the lower case 39 at a high flow velocity, and the outside air is discharged from the guide part 48. The flow direction is changed and the blades 16 and 67 of the rotating brush 11 are collided to rotate the rotating brush 11 counterclockwise in FIG.

  The air flowing in from the guide port 51 is blown toward the lower side of the suction tool main body 37, and the direction is changed to the rotary brush 11 side by the guide part 48. Therefore, the blade 16 positioned below the core body 12 of the rotary brush 11 , 67 to prevent the blades 16 and 67 from being caught on the carpet or the like when cleaning the carpet or the like having a long bristle, so that the rotating brush 11 can be reliably rotated.

  Moreover, since the inlet 53 is formed to have an extremely small opening area as compared with the suction port 7, similarly to the guide port 51, the air sucked from the inlet 53 corresponds to the front of the front wheel 27 at a high flow rate. The dust flows into the protruding opening 50 and can be sucked in through the suction port 7 so as to wind up dust at a position corresponding to the front of the front wheel 27, and dust can be sucked in over the entire width of the suction tool body 37. , Less leftovers.

  The leading end of the guide rib 52 extends at the rotation center position of the rotary brush 11 or below the rotation center, and the air sucked from the guide port 51 passes over the rotary brush 11 and directly enters the rotary tube 43. The suction can be prevented and the guide can be reliably guided to the guide portion 48, and the rotary brush 11 can be efficiently rotated.

  Since the guide ports 51 are formed at two positions corresponding to both end portions of the rotating brush 11, dust removal efficiency at both end sides having the weakest suction force can be improved, and the blades 16, 67 of the rotating brush 11 can be improved. Since the outside air always collides with two of the blades 16 and 67 in combination with being twisted approximately 90 degrees between both ends, the rotating brush 11 can be smoothly rotated.

  In addition, if a guide port is formed in the front center part of the suction tool body 37, the center part is a position corresponding to the rotation pipe 43 leading to the cleaner body, so the influence of the suction force of the rotation pipe 43, A flow in which the outside air sucked from the guide port 51 is directly sucked into the rotating tube 43 through the upper portion of the rotating brush 11 is relatively easy to occur, whereas it is difficult to sufficiently obtain the rotating force of the rotating brush 11. By forming the guide ports 51 at two locations corresponding to both ends, the outside air sucked from the guide ports 51 is difficult to be directly sucked into the rotating tube 43 through the upper portion of the rotating brush 11, and sufficient rotational force is obtained. Can do.

  The rotary pipe 43 is rotatable in the left-right direction of the suction tool body 37, and the joint pipe 44 is disposed so as to be rotatable in the vertical direction with respect to the rotary pipe 43. By rotating approximately 90 degrees in the direction and rotating the rotating pipe 43 approximately 90 degrees, an extension pipe and a flexible hose (not shown) connected to the joint pipe 44 become substantially parallel to the longitudinal direction of the suction tool body 37. In addition, the suction tool body 37 can be made to enter a narrow space such as a gap in furniture, and the cleaning efficiency can be improved.

  Referring to FIG. 16, the rotating brush according to another embodiment of the present invention will be described in detail. The rotating brush 61 includes a core body 62 and a pair of base parts 64 that are mounted by inserting a base 64 into a spiral groove 63 of the core body 62. The brush body 65 and a pair of blades 16 similar to those in the above-described embodiment that are mounted by inserting the base portion 18 into the spiral groove 63 of the core body 62.

  The brush body 65 is mounted by inserting a relatively hard cloth-like base portion 64 with a core 66 sandwiched therein and fixing it with an adhesive or the like, and inserting the fixed portion into a groove 63 of the core body 62. The brush body 65 planted on the free end side of the base 64 is mounted so as to incline backward with respect to the rotation direction of the rotary brush 61.

  The blade 16 is formed by the same method as in the first embodiment, but is corrected so as not to bend.

  In the present embodiment, the brush body 40 stands and tilts according to the same rotational fluctuation as the blade 16 of the first embodiment described above, and the rotational speed of the rotating brush 36 can be maintained substantially constant. .

  Further, the brush body may be formed to be curved similarly to the above embodiment, and the blade may be attached to the core body while being inclined. Furthermore, both the brush body and the blade may be curved or inclined and attached to the core body.

It is sectional drawing which shows the 1st Embodiment of this invention. It is the same top view. It is sectional drawing seen from the other direction. It is sectional drawing which shows the stop state of the rotation brush. It is sectional drawing which shows the rotation state of the rotation brush. It is AA sectional drawing in FIG. 8 which shows the 2nd Embodiment of this invention. It is AA sectional drawing in FIG. 8 which shows the cleaning states, such as the carpet. It is the same top view. It is BB sectional drawing in FIG. 10 which shows the 3rd Embodiment of this invention. It is the same top view. It is a top view which shows the 4th Embodiment of this invention. FIG. It is a longitudinal cross-sectional view in the center part of the suction tool main body. It is an AA cross-sectional arrow view in FIG. It is the same side view. It is sectional drawing which shows other embodiment of the rotating brush of this invention.

Explanation of symbols

1 Floor suction tool 7 Suction port 8 Rotating brush storage room
11 Rotating brush
20 Information gate
23 outlet
26 Air intake channel

Claims (2)

A suction tool main body having a suction port on the lower surface, a rotary brush storage chamber formed in the suction tool main body, a rotary brush rotatably stored in the rotary brush storage chamber facing the suction port, and the suction A guide port formed in the tool body for sucking outside air and an intake passage for guiding the outside air sucked from the guide port to the discharge port, and the rotating brush rotates by collision of the outside air sucked from the discharge port. The floor suction tool is characterized in that the intake passage is formed to become narrower toward the discharge port. The floor suction tool, wherein the guide ports are formed at two locations corresponding to both sides of the rotary brush of the suction tool body.

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