JP2002065525A - Vacuum cleaner and floor brush thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple-structured floor brush of a vacuum cleaner capable of efficiently sucking dust by reducing the time for the dust sucked into a suction room to stay in the suction room. SOLUTION: A communicating tube 64 to be connected to a cleaner body of the vacuum cleaner is mounted nearly at the center in the rear part of a casing 24 sectioning the suction room 31 with a suction port 30 opening on the bottom. A brush part 69 with bristles planted like a wall and a rotary cleaner 67 with a blade part 70 harder than the brush part 69 attached like a spiral wall are rotatably disposed in the suction room 31. A wall-like dust taking part 51 in the axial direction of the rotary cleaner 67, with restriction surfaces 51a, 51a nearly orthogonally crossing the direction of the peripheral contact line of the rotary cleaner 67, is disposed at the upper part on the inner surface of the suction room 31. The dust sucked by the vacuum cleaner is brought into contact with the restriction surfaces 51a, 51a of a dust taking in part 51, guided nearly to the center where the communicating tube 64 is located, and sucked. Therefore, as the sucked dust is rotated in the suction room 31, the dust is prevented from staying in the suction room, achieving efficient dust suction, and preventing the noise of dust generated in abutting on the suction room when staying in the suction room.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction port of a vacuum cleaner having a rotary cleaning body and a vacuum cleaner having a suction port of the vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, as a suction port of an electric vacuum cleaner for sweeping dust out of a floor surface by a rotary cleaning member and cleaning the same, for example, as described in JP-A-8-38399, a flexible plate-shaped suction port is used. A plurality of blade portions provided on a shaft member in a spiral shape, or a brush portion in which a flexible plate-shaped blade portion and brush bristles are planted in a wall shape as described in JP-A-8-173355. Are provided on the shaft member in a helical manner, and a flexible plate-shaped blade portion and a cloth blade portion made of fabric as described in JP-A-10-33428 and JP-A-10-71111 As described in Japanese Patent Application Laid-Open No. 11-56707, and a structure in which a plurality of cleaning members integrally provided with a cloth blade on one surface of a flexible blade are provided on a shaft member. , Various configurations It is known.

[0003] The various rotary cleaning bodies are rotatably disposed in a suction chamber of a case body having a communication pipe connected to a cleaner body accommodating an electric blower and having a suction port opened on a lower surface thereof. It is rotated by a drive means such as a motor or a motor or rotated by directly applying a suction flow to scrape dust from a floor surface to be cleaned and suck it with air to clean.

[0004]

The suction port of the vacuum cleaner has a case body formed in a rectangular shape which is oblong in the traveling direction on the floor in order to efficiently suck dust from the floor. A communication pipe is provided substantially at the center of the rear part. For this reason, since the rotary cleaning body has only a substantially central portion facing the communication pipe and both sides do not face the communication pipe, dust scooped up near both ends of the rotary cleaning body moves in the suction chamber in the axial direction of the rotary cleaning body. With the rotation of the rotary cleaning body, it moves in a spiral shape to approximately the center of the suction chamber along the rotation of the rotary cleaning body, and is sucked into the communication pipe. For this reason, there is a certain period of time in which the dust stays in the suction chamber from the time when dust is sucked through the suction port to the time when the dust is sucked into the communication pipe, and dust may remain in the suction chamber when cleaning is interrupted. When sucking a hard member such as beans, sand or gravel, clips, coins, etc., the hard member moves in a spiral shape substantially to the center of the suction chamber, so that a number of collisions with the inner surface of the suction chamber occur, and the suction member moves in the suction chamber. There is a problem that noise occurs at the time.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a vacuum cleaner and a suction port body that can efficiently suck dust with a simple configuration by reducing the time that dust sucked into the suction chamber stays in the suction chamber. The purpose is to provide.

[0006]

According to a first aspect of the present invention, there is provided a vacuum cleaner having a case body having a suction chamber having a suction opening on a lower surface facing a surface to be cleaned, and one end of the case body. A communication pipe provided in communication with the suction chamber, a rotary cleaning body rotatably disposed in the suction chamber, and a rotation cleaning member provided in the suction chamber at least at a position not facing the communication pipe. A dust removing portion having a wall surface crossing the tangential direction of the outer periphery of the body and substantially along the axial direction of the rotary cleaning body and having a regulating surface substantially opposed to the rotation direction of the rotary cleaning body.

[0007] Then, in the suction chamber in which a suction opening facing the surface to be cleaned is opened on the lower surface and a rotary cleaning body is rotatably disposed,
A dust removal surface having a regulating surface which is at least at a position not opposed to the communication pipe and which has a wall surface crossing the tangential direction of the outer periphery of the rotating cleaning body and substantially along the axial direction of the rotating cleaning body and substantially facing the rotating direction of the rotating cleaning body; By providing a part, dust swept up from the surface to be cleaned by the rotating cleaning body and sucked into the suction chamber from the suction port comes into contact with the regulation surface of the dust removal part when rotating as the rotating cleaning body rotates. The guide pipe is guided to the communication pipe along the regulating surface, preventing rotation and stagnation in the suction chamber, efficiently collecting dust, and also occurs, for example, when a number of hard members sucked collide with the inner surface of the suction chamber. Prevent noise.

The suction body of the vacuum cleaner according to claim 2 is
A case body having a suction chamber with an opening on the lower surface opposite to the surface to be cleaned, a communication pipe provided with one end of the case body communicating with the suction chamber, and a rotatable pipe disposed in the suction chamber. The provided rotary cleaning body, provided in the suction chamber, regulates that dust sucked from the surface to be cleaned through the suction port abuts and rotates with the rotation of the rotary cleaning body, thereby restricting the rotation. And a refuse removing portion that leads to the communication pipe.

[0009] Dust sucked from the surface to be cleaned through the suction port by a dust removal portion provided in a suction chamber in which a suction opening facing the surface to be cleaned is opened and a rotatable cleaning body is rotatably disposed on the lower surface. Abuts on the rotating cleaning body and restricts the rotation with the rotation of the rotating cleaning body to guide the flow to the communication pipe. Therefore, the rotation of the rotating cleaning body with the rotation of the rotating cleaning body is prevented from being retained in the suction chamber, and dust is efficiently absorbed. At the same time, noise generated by a large number of collisions with the inner surface of the suction chamber is prevented.

The suction body of the vacuum cleaner according to claim 3 is
3. The suction body of a vacuum cleaner according to claim 1, wherein the rotary cleaning body is formed of a shaft member and a soft member, and is provided on an outer peripheral surface of the shaft member in a wall shape along an axial direction, and a surface to be cleaned. A cleaning member for scraping dust from the cleaning member, and the dust removing portion is provided so as to be able to contact the cleaning member of the rotary cleaning body.

A dust removing portion is provided on the outer peripheral surface of the shaft member so as to be in contact with a cleaning member of a rotary cleaning body formed of a soft member which is provided in a wall shape extending in the axial direction and scrapes dust from the surface to be cleaned. As a result, dust that is scraped up and adhered to the cleaning member is separated and removed by the cleaning member coming into contact with the dust removing portion. In addition to absorbing the raised dust, the cleaning efficiency is improved, and the cleaning member is prevented from being stained, so that maintenance and management is facilitated.

The suction body of the vacuum cleaner according to claim 4 is
4. The suction port of a vacuum cleaner according to claim 3, wherein the rotary cleaning member is formed to be harder than the cleaning member and is provided in a wall shape along the axial direction on the outer peripheral surface of the shaft member to scrape dust from the surface to be cleaned. And a dust removing portion provided in a state where the dust removing portion does not contact the blade portion of the rotary cleaning body.

The dust removing portion is formed so as to be harder than the cleaning member and provided on the outer peripheral surface of the shaft member in a wall shape extending in the axial direction and not in contact with the blade portion of the rotary cleaning body that scrapes dust from the surface to be cleaned. With this arrangement, it is possible to prevent noise from being generated due to the relatively hard blade portion of the rotary cleaning body coming into contact with the dust removing portion, and to reduce the rotation load of the rotary cleaning body to efficiently rotate the rotary cleaning body. As a result, a decrease in dust scraping efficiency is prevented.

According to a fifth aspect of the present invention, there is provided a vacuum cleaner comprising a vacuum cleaner main body and a suction port of the vacuum cleaner according to any one of the first to fourth aspects connected to the vacuum cleaner main body. .

The vacuum cleaner according to any one of claims 1 to 4, wherein the sucked dust efficiently absorbs the dust without staying and prevents noise from being generated, thereby improving cleanability. And the cleaning environment is improved.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a vacuum cleaner according to an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 2, reference numeral 1 denotes a cleaner main body. The cleaner main body 1 includes a lower body case 2a having an open upper surface, and an upper body case 2b for closing a rear upper surface of the lower body case 2a. The main body case 2 has a front upper surface opened by being sandwiched and joined with a bumper (not shown) to a peripheral edge including. The cleaner body 1 rotatably supports a lid 4 that closes the upper surface of the front side of the body case 2 so as to be openable and closable. The main body case 2 is provided with a rotatable revolving wheel (not shown) on the front lower surface in the traveling direction, and a large-diameter driven wheel 6 is rotatably provided on the rear side surface of the main body case 2. The turning wheel and the driven wheel 6 can travel on a floor surface to be cleaned.

In the cleaner body 1, an electric blower chamber (not shown) for accommodating the electric blower 7 is formed on the rear side, and communicates with the suction side of the electric blower 7 and is open at the top to open the lid. A dust collection chamber that is opened and closed by the body 4 and accommodates a dust collection filter (not shown) is defined on the front side. further,
On the front side of the cleaner body 1, there is formed a connection port 10 which opens to the dust collection chamber and to which the hose 9 is detachably connected.

The hose 9 has a flexible hose body 11.
A connection pipe 12 provided at one end of the hose body 11 and detachably inserted and connected to the connection port 10 of the cleaner body 1;
A grip 15 is provided at the other end of the hose body 11 and is connected to the suction port 14 via the extension pipe 13. The grip 15 is provided with operating means 17 having various switches 16 and 16 for setting and operating the driving state of the electric blower 7 and the like.

On the other hand, as shown in FIGS. 1 to 6, the suction port body 14 has a rectangular shape which is horizontally long in the running direction which is the front-back direction, and is made of acrylonitrile-butadiene-styrene (AB).
S) Lower case with open upper surface made of synthetic resin such as resin
21 and an upper case 22 that covers the upper opening at the upper part of the lower case 21 and opens the lower surface of the same material, and a soft member buffer 23 along the peripheral surface including the front surfaces of the lower case 21 and the upper case 22. And has a convex-shaped case body 24 whose rear substantially approximate center protrudes rearward.

The lower case 21 has a rib lower portion 25a substantially vertically on the upper surface, the upper case 22 has a rib upper portion 25b on the lower surface substantially perpendicular to the lower edge joined to the rib lower portion 25a, and the case body 24 has The rib lower part 25a and the rib upper part 25b are formed in a convex shape with a horizontally long rectangular suction part 26 and a pair of housing parts 27, 27 projecting rearward substantially at the center of the rear part of the suction part 26. Further, inside the suction part 26, a suction chamber 31 having a rib lower part 25a and a rib upper part 25b, which is located horizontally long on the front side and has an opening 30 formed on the lower surface of the lower case 21, is formed.
A drive transmission chamber 32 defined and formed at one end of the motor chamber, and a motor chamber defined and formed at a rear end of the suction chamber 31 at one end.
33, and a circuit room 34 formed at the rear end of the suction chamber 31 on the other end side. In addition, the lower rib 25a
At the approximate center of the rib upper portion 25b, notch holding concave portions 35a and 35b formed in opposing concave shapes are provided, respectively.

Further, the lower case 21 is formed in a convex shape by a suction lower part 21a constituting the lower surface of the suction part 26 and a housing part 27 provided integrally with a rear part of the suction lower part 21a. I have. A plurality of, for example, two dust suction ports 37 are formed in the front part of the suction lower part 21a and open from the front surface to the lower surface, which are elongated in the longitudinal direction of the case body, that is, horizontally long, and are outer peripheral surfaces. Have been. And these dust inlets
Behind the lower part of 37, 37, there is a running surface 38, which is a plate-like shape continuous from the bottom surface of the suction lower part 21a on one surface and which is substantially parallel to the floor surface to be cleaned, and has a dust inlet 37 at the front edge. A sliding portion 39 constituting the lower edge is provided. Furthermore, the suction lower part 21a
A guide portion 41 is provided between the sliding portions 39 and 39, the leading edge of which is curved upward and protrudes like the side portion of the suction lower portion 21a and has a curved surface 40 on the outer surface side. Have been. In addition, a chamfer 42 is provided in the lower end of the sliding portion 39 in an arc shape.

At the front of the suction lower part 21a, a support rib 44 having a shaft support concave part 43 whose upper edge is cut out in a substantially semicircular shape.
Are provided. An opening / closing body 45 that opens and closes the dust suction port 37 is provided in the shaft supporting recess 43 of the support rib 44. The opening / closing body 45 includes a rotating shaft 46 rotatably supported by the shaft supporting recess 43 of the support rib 44 in a state where the axial direction is substantially along the longitudinal direction of the case body 24. The rotating shaft 46 is integrally provided with an opening / closing plate 47 for opening and closing the dust suction port 37. The opening / closing plate 47 is formed in a substantially plate shape in which a substantially cylindrical shaft support portion 48 for fitting the rotary shaft 46 is provided at an upper end edge, and a lower end edge is curved toward the suction chamber 31 at the rear. Further, a plate-like projection 49 projecting substantially vertically toward the front is provided on the front surface of the opening / closing plate 47 opposite to the side where the lower edge is curved.

As shown in FIG. 6, the opening / closing body 45 is always closed at its lower end edge by a dust suction port 37 by a closing / holding means 50 such as a not-shown torsion coil spring supported by a rotating shaft 46. The front end edge of the sliding portion 39 is biased so as to be closed in a state where a part of the dust suction port 37 is opened opposite to the front edge of the sliding portion 39 through a leak gap, and the protrusion 49 is located on the outermost periphery of the case body 24. It is held rotatably in a state protruding forward from 23.

Further, a suction chamber is provided on the lower surface of the upper case 22.
A dust-removing portion 51 is provided on the inner surface of the lower portion 31 and has a regulating surface 51a, 51a, which is formed in a wall shape along the left-right direction which is the longitudinal direction of the suction chamber 31 and is substantially perpendicular to the front-rear direction. ing. The dust removing portion 51 is arranged such that the regulating surface 51a faces substantially the entire left-right direction of the rear inner surface of the suction chamber 31 so that the suction chamber 31
Are provided in series to the left and right ends on the inner surface of the.

On the other hand, a driven front wheel chamber 52 in which a driven front wheel (not shown) is rotatably supported is formed at both front ends of the suction lower portion 21a of the lower case 21. Also, the lower case 21
Between the pair of housing portions 27, 27, both ends of a wheel shaft 53b that rotatably supports the driven rear wheel 53a are pivotally supported.

The case 24 has a housing 27,
A connection pipe portion 55 is provided between the lower case 21 and the lower case 21 and the upper case 22 to partition and define an air passage chamber 54 communicating with the rear substantially center of the suction chamber 31. This connecting pipe section 55
Has a shaft support pipe portion 57 having a cylindrical suction tube portion 56 whose one end in the axial direction gradually becomes larger in a trumpet shape toward the suction chamber 31. In addition, the connecting pipe portion 55 protrudes outward from the outer peripheral edge of the suction pipe portion 56 in a flange shape, and each peripheral edge is a lower case.
Rib lower part 25a and rib upper part 25b of 21 and upper case 22
The mounting plate portion 58 is engaged with each of the notch holding concave portions 35a and 35b. Then, the connection pipe portion 55 is such that the suction pipe portion 56 at one end side of the shaft support pipe portion 57 expands in a trumpet shape toward the suction chamber 31, and the other end side projects substantially rearward from the case body 24, The axial direction of the shaft support pipe portion 57 is disposed on the case body 24 along the front-rear direction and the horizontal direction.

Further, a joint 61 as a rotating pipe is rotatably fitted to the shaft support pipe 57 of the connecting pipe 55. In addition, a communication pipe in which a rotary shaft 62 provided at one end is connected to the extension pipe 13 and the hose 9 so that the other end thereof is rotatable vertically in the joint 61. Part 63
Is attached, and the communication pipe is connected at the joint 61 and the communication pipe 63.
64 are configured.

Further, in the case body 24, the suction chamber 31 is rotatably supported by bearings 66, 66 provided at both ends of the suction chamber 31 in the left-right direction at positions where the rib lower part 25 a and the rib upper part 25 b are joined. A rotating cleaning body 67 as a rotating body is provided. The rotary cleaning body 67 has a shaft member on which both ends are rotatably supported along the left-right direction of the suction chamber 31, that is, along the plane of the regulation surfaces 51 a, 51 a of the dust removal part 51. The shaft 68 is provided. On the outer peripheral surface of the shaft 68, a brush part 69a as a cleaning member is provided with brush bristles 69a formed of a soft member and planted in a wall shape.
A flexible blade portion 70 formed in a plate shape that is harder than the brush portion 69, that is, made of synthetic resin and has a low elastic deformation property and a high stiffness, is provided in a spiral wall shape. At both ends of the shaft 69, a rotatable member 71 rotatably provided and removably attached to the bearing 66 is rotatably provided, and a pulley 72 is integrally provided at one end. Have been.

The rotary cleaning member 67 rotates in a forward rotation (clockwise direction in FIG. 1) with respect to the advance of the suction port member 14, and has a dust removing portion with respect to a tangential direction of the outer circumference which is a rotation locus. The 51 regulating surfaces 51a, 51a are substantially perpendicular to each other, and the brush portion
The state where only the tip of the brush bristles 69a of 69 abuts on the lower end edge, which is the tip of the dust removal part 51, and only the tip of the brush bristles abuts on the floor when placed on a flat floor such as between boards. It is disposed in the suction chamber 31 such that the central axis of the shaft 68 is located below the projecting portion of the dust removing portion 51 so as to be rotatable.

Further, in the motor room 33 of the case body 24,
The output shaft (not shown) provided with the output pulley 75 is
The electric motor 76 is disposed in a state where the motor 76 is located. And
An endless belt-shaped drive transmission member 78 is wound around the output pulley 75 with the pulley 72 of the rotary cleaning body 67, and the rotary cleaning body 67 is rotated by the drive of the electric motor 76.

In the circuit chamber 34 of the case 24, a floor detecting means 80 is provided. This floor surface detection means 80
An arm that pivotally supports a rotating body 81 that rotates while touching the floor at the tip
The base end of 82 is pivotally supported so that the rotating body 81 moves up and down with respect to the lower surface of the case body 24. A switch means 83 is provided for detecting that the case body 24 has been lifted by rotating the arm 82 so that the rotating body 81 is located at the lowest position when the case body 24 separates from the floor surface. Have been. The arm 82 has a holding arm 84 that is bent in a substantially U shape.
Are provided integrally, and a sphere (not shown) is disposed above the holding arm portion 84 so as to be movable in the vertical direction. Then, in a state where the lower surface of the case body 24 is turned upward, the sphere moves to the upper case 22 side, the tip of the holding arm 84 abuts on the sphere, and the rotating body 81 provided on the arm 82
Does not move into the case body 24 due to its own weight.
24 is held at the lowest position similar to the lowest position of the lifted state, and the switch means 83 detects that it has been lifted from the floor surface.

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

When cleaning, an extension pipe is attached to the cleaner body 1.
The suction port body 14 is connected via the hose 13 and the hose 13. In this state, the electric blower 7 and the electric motor 76 are appropriately operated by operating the switch 16 of the operating means 17 while holding the grip 15 of the hose 9.
Is driven in a desired driving state, and the gripping part 15 is pushed to move the suction opening body 14 back and forth on the floor surface.

Then, by driving the electric blower 7, the dust on the floor surface scraped out by the rotary cleaning body 67 which is appropriately rotated by the driving of the electric motor 76 is sucked together with the air from the suction port 30 and the extension pipe 13 is connected to the communication pipe 64. And, it flows into a dust collecting bag installed in the dust collecting chamber 8 of the cleaner body 1 through the hose 9 and is captured. Furthermore, the air separated and removed by a dust bag
The air flows into the electric blower room from the electric blower 7 and is exhausted to the outside air through an exhaust port (not shown) provided in the main body case 2.

It should be noted that the suction chamber 31 together with air flows through the suction port 30.
The dust sucked inside tries to move in a spiral shape to the approximate center where the communication pipe 64 is connected while rotating in the suction chamber 31 with the rotation of the rotary cleaning body 67, but in the rotation direction of the rotary cleaning body 64. Abuts on the regulating surface 51a of the dust removing portion 51 facing the dust collecting portion 51, and is guided by the regulating surface 51a of the dust removing portion 51 to a substantially center where the communication pipe 64 is connected, guided by the communication pipe 64 and sucked. Further, the tip of the brush 69 to which the dust of the rotary cleaning member 67 is apt to adhere is brought into contact with the leading edge of the dust removing portion 51, and the attached dust is peeled off and removed. Guided to tube 64.

For this reason, dust is sucked into the communication pipe 64 in a shorter time than the time required for the dust to move in a spiral and be sucked into the communication pipe 64, and thus, for example, when the cleaning is interrupted or stopped, the electric blower is driven. Even if the negative pressure state with respect to the atmospheric pressure is not obtained by stopping the operation, that is, even if the suction force from the communication pipe 64 is no longer obtained, the dust sucked into the suction chamber 31 is the time required for the electric blower to completely stop. Thus, it is sucked into the communication pipe 64 with almost no residual, and dust can be reliably absorbed. Further, for example, when sucking a hard member such as rice grains, beans, sand or gravel, clips, coins, etc., the hard member comes into contact with the regulating surface 51a of the refuse removing portion 51 and immediately leads to the communication pipe 64 to suck the suction chamber. While colliding with the inner surface of the inside 31 and moving spirally to the approximate center of the suction chamber 31 to prevent noise,
Clean in a quiet good environment.

Then, in a state of cleaning by running on the floor surface, the opening and closing plate 47 of the opening and closing body 45 is urged by the closing and holding means 50.
The lower end edge is closed to the front end edge of the sliding portion 39 with a part of the front side of the sliding portion 39 facing the floor surface of the dust suction port 37 opened through a leak gap. It is in a state. For this reason, a negative pressure state with respect to the atmospheric pressure on the lower surface of the case body 24 is secured to the extent that air is slightly sucked from the dust suction port 37 which is partially open on the surface facing the floor surface, and the air is efficiently directed to the suction port 30 and the downward direction. Dust port 37 partially open
Dust is sucked in with air. Furthermore, even when dust on the floor surface is pushed out by the front edge of the sliding portion 39 when the suction port body 14 advances, a part of the dust suction port 37 is open at the front end portion of the sliding portion 39. Thus, the pushed-out dust is reliably sucked through the dust suction port 37, and can be cleaned without being left behind. In addition, by securing a negative pressure state with respect to the atmospheric pressure on the lower surface of the case body 24, for example, a tatami mat of a carpet or a tatami mat is pressed by the sliding portion 39 to prevent a state in which the carpet or the tatami mat is sucked up and curved upward, thereby preventing The opening is secured by preventing the port 37 and the suction port 30 from being closed.

When the floor to be cleaned has a long carpet or the like, when the suction opening 14 is advanced, the cambered surface 40 located on the front lower edge of the suction opening 14 and the chamfer 42 of the sliding portion 39 are formed. As a result, the hair of the carpet is guided, and the hair of the carpet is prevented from being caught on the front lower edge portion of the suction port body 14, and the suction port body 14 runs smoothly.

When cleaning the vicinity of a portion having a surface that rises crossing the floor surface, such as a peripheral edge on which furniture is placed, a wall, or the like, when the front surface of the suction port body 14 comes into contact with furniture or a wall surface. , The protrusion of the opening / closing body 45 located in front of the suction port body 14
The tip of 49 first contacts. Then, a rotating shaft 46 in which the opening / closing plate 47 is pivotally supported on the upper end edge against the bias of the closing holding means 50.
, And the entire surface of the dust suction port 37 is opened.

When the floor surface is a carpet with a long bristle feet, the lower edge of the dust suction port 37 is constituted by the sliding portion 39, and the hair of the carpet is held down by the sliding portion 39 so that the dust suction port is formed.
As a result, the dust suction port 37 is kept in an open state without entering the dust box 37. Then, the air path is formed from the floor surface to the dust suction port 37 by the furniture and the wall surface, and the dust at the time of the furniture and the wall is sucked from the dust suction port 37, and the air sucked from the suction port 30 and the suction chamber 31 are used. It joins and flows through the extension pipe 13 and the hose 9 into the dust collecting bag mounted in the dust collecting chamber 8 of the cleaner body 1 to be captured.

When the suction opening 14 is separated from the furniture or the wall surface, the opening / closing plate 47 is again closed by the urging of the closing and holding means 50 so that the dust suction opening 37 is partially open to the floor surface. A state in which a negative pressure state with respect to the atmospheric pressure on the lower surface of the mouth body 14 is maintained.

When the hose 9 is placed on the floor,
Alternatively, removal of dust clogged in the suction port 30 and the rotation cleaning body 67
When the lower surface of the suction opening body 14 is separated from the floor surface to remove lint and the like entangled with the rotating body 81 of the floor surface detecting means 80,
Is separated from the floor surface, the arm 82 rotates in a state where the rotating body 81 is located at the lowest position, the switch means 83 is turned on,
The control means mounted on a circuit board (not shown) provided in the cleaner main body 1 determines that the lower surface of the suction port body 14 is separated from the floor surface, and stops the drive of the electric motor 76 to stop the rotation of the rotary cleaning body. Stop rotation of 67.

As described above, in the above embodiment, the outer periphery of the rotary cleaning body 67 is provided in the suction chamber 31 in which the suction port 30 facing the floor is opened on the lower surface and the rotary cleaning body 67 is rotatably disposed. A regulating surface 51a that intersects the tangent direction and has a wall shape substantially along the axial direction of the rotary cleaning body 67 and is substantially opposed to the side to which the communication pipe 64 is connected.
In order to provide a dust removing portion 50 having dust, dust swept up from the floor surface by the rotary cleaning body 67 and sucked into the suction chamber 31 from the suction port 30 comes into contact with the regulating surface 51a of the dust removing portion 51 and regulates the dust. Guided to the communication pipe 64 along the 51a, while rotating with the rotation of the rotary cleaning body 67, spirally moves to the center of the suction chamber 31 to prevent it from rotating and staying in the suction chamber 31, The dust can be efficiently absorbed without remaining in the suction chamber 31 and stays so as to rotate in the suction chamber 31, that is, the suction chamber
A large number of collisions with the inner surface of the suction chamber 31 can be prevented, and noise generated when the inner surface of the suction chamber 31 is in contact with the inner surface of the suction chamber 31 can be prevented.

Further, the dust that has been swept up by the rotary cleaning body 67 and imparted with a rotational force is opposed to the rotating direction of the rotary cleaning body 67, and the rotational force is regulated by the regulating surface 51a facing the rear surface where the communication pipe 64 is provided. Communication pipe 6
It becomes easy to move to the fourth side, and as a result, the dust absorption at the left and right end portions of the suction port 30 distant from the communication pipe 64 is particularly improved.

Since the dust removing portion 51 is provided in the shape of a wall, even in a configuration in which the rotating direction of the rotary cleaning member 67 is reversed with a simple structure in which a large number of the dust removing portions 51 are provided in the suction chamber 31, the communication pipe 64 for dust is provided. And can be cleaned efficiently.

A dust removing portion 51 is provided on the outer peripheral surface of the shaft 68 so as to abut against a brush portion of a rotary cleaning body 67 formed of a soft member which is provided in a wall shape extending in the axial direction and scrapes dust from the floor surface. Therefore, the dust that is scraped up and adhered to the brush portion 69 is separated and removed by the brush portion 69 abutting on the dust removing portion 51.
It is possible to suppress the deterioration of the scraping property of the dust of the 69 and reliably absorb the scraped-up dust, improve the cleaning efficiency, prevent the brush part 69 from being stained, and easily perform maintenance.

Further, it is formed to be harder than the brush bristles of the brush portion 69 and is provided on the outer peripheral surface of the shaft 68 in the form of a wall extending in the axial direction, and does not contact the blade portion 70 of the rotary cleaning body 67 which scrapes dust from the floor surface. In order to provide the dust removing portion 51, the relatively hard blade portion 70 of the rotary cleaning body 67 is provided on the dust removing portion 51.
Noise can be prevented by contacting the rotating cleaning member 67, and the rotation load of the rotating cleaning member 67 can be reduced, and the rotating cleaning member 67 can be efficiently and smoothly rotated to prevent a reduction in dust scraping efficiency.

Further, since the dust removing portion 51 is formed in a wall shape having flat regulating surfaces 51a, 51a substantially perpendicular to the outer peripheral tangent direction which is the rotation direction of the rotary cleaning member 67, the brush portion 69 is formed.
The side surface of the brush bristles comes into contact with the dust removing portion 51, and with a simple configuration, dust adhering can be efficiently removed and removed without increasing the load on the rotation of the rotary cleaning body 67.

Furthermore, since the dust removing portion 51 is formed above the center axis of the shaft 68 of the rotary cleaning body 67 and formed in a wall shape extending in the vertical direction, the dust removing portion 51 can easily be protruded even in the upper case 22 having a configuration in which the dust removing portion 51 protrudes. Can be molded.

The dust removing portion 51 is formed in a wall shape along the axial direction of the rotary cleaning member 67 in the left-right direction of the suction chamber 31, and the brush portion 69 and the blade portion 70 of the rotary cleaning member 67 are provided in a spiral wall shape. Therefore, when the brush part 69 comes into contact with the dust removal part 51,
It is in a state of contact at one point where it intersects without simultaneously abutting on the entire region in the longitudinal direction, and it is possible to prevent the rotational load from increasing and stably rotate the rotary cleaning body 67, and to efficiently scrape up dust, Sound at the time of contact can be greatly reduced, and noise due to rotation of the rotary cleaning body 67 can be reduced.

In the above embodiment, the suction port 14 is not limited to the canister type vacuum cleaner,
Upright type and vacuum cleaner body 1 directly formed on the lower surface of the car
It can also be applied to a self-propelled vacuum cleaner, a handy type, and the like in which the and the suction port body 14 are integrated.

Although the dust removing portion 51 is formed in a wall shape, for example, when the rotating direction of the rotary cleaning body 67 is one direction, the lower surface of the upper case 22 intersects the outer circumferential tangential direction which is the rotating direction. The dust removing portion 51 may be formed by forming a wall-like shape along the axial direction of the rotary cleaning member 67 and having a regulating surface substantially opposed to the rotation direction of the rotary cleaning member.

Although the dust removing portion 51 is formed in the suction chamber 31 as a series of walls in the left-right direction, for example, it may be provided only on the left and right sides of the suction chamber 31 without being provided at the position where the communication pipe 64 is provided. . It should be noted that the dust removal portions 51 are provided only on the left and right sides of the suction chamber 31 so that the position facing the communication pipe 64 is cut off.
In the configuration in which is provided, the case body 24 is reduced in weight, and the handleability at the time of cleaning can be improved. Further, the rotary cleaning body 67 is a case body.
When rotating in the reverse rotation to the forward movement of 24, dust will be guided to the substantially center at the regulating surface 51a located on the front side opposite to the side where the communication pipe 64 of the dust removal part 51 is located, The dust guided to the center is easily sucked into the communication pipe 64 through the cut-out portion, so that dust can be prevented from staying and dust can be efficiently absorbed.

Further, a plurality of dust removing portions 51 may be provided in parallel with the rotating direction of the rotary cleaning body 67.

Although the dust removing portion 51 is provided above the central axis of the shaft 68 of the rotary cleaning member 67 and provided in a wall shape along the vertical direction, the position where the dust removing portion 51 shifts forward or rearward from the rotary cleaning member 67 is provided. May be provided. In this case, too,
It is preferable that 51a, 51a be provided in a state of being inclined obliquely so as to be substantially perpendicular to the outer peripheral tangent direction which is the rotation direction of the rotary cleaning body 67.

That is, in the configuration in which the dust removing portion 51 has the regulating surfaces 51a, 51a which are at an acute angle to the rotation direction of the rotary cleaning member 67, the abutting dust passes over the dust removing portion 51 by the rotation of the rotary cleaning member 67. Therefore, there is a possibility that it cannot be guided to the communication pipe 64. Further, in the configuration in which the dust removing portion 51 has the regulation surfaces 51a, 51a that are obtuse with respect to the rotation direction of the rotary cleaning body 67,
The impact force when the brush portion 69 comes into contact increases, the rotational load increases, and the rotary cleaning body 67 may not be able to rotate smoothly and efficiently, and may not be cleaned efficiently. For this reason, the regulating surface with respect to the tangential direction of the outer periphery of the rotary cleaning body 67 is
It is preferable that the dust removing portion 51 is provided so that 51a and 51a are substantially orthogonal.

On the other hand, the dust removing portion 51 is provided so that only the brush portion 69 of the rotary cleaning member 67 contacts, but the dust removing portion 51 is provided so as not to contact the rotary cleaning member 67 or to contact the blade portion 70. Is also good. As described above, the brush unit
The cleaning member formed of a soft member such as 69 or a cloth blade portion is more likely to adhere dust than the blade portion 70 formed in a relatively hard plate shape, and the blade portion 70 is less likely to adhere dust. However, since the contact with the blade portion 70 causes problems such as generation of noise and an increase in rotational load, contact with only the cleaning member formed of a soft member such as the brush portion 69 or the cloth blade portion. Is preferred.

The rotary cleaning body 67 is provided with only the brush portion 69, provided with only the blade portion 70, and provided with a brush portion.
Any configuration, such as a configuration using a cloth blade portion formed of a soft material cloth instead of 69, can be used.

Then, the dust suction port 37 opened and closed by the opening and closing body 45.
Is provided, but a configuration without the provision is also possible.

The rotary cleaning body 67 is not limited to the configuration in which the rotary cleaning body is rotated by the electric motor 76, but may be configured to use another driving means such as an air turbine, or to rotate the air flow by blowing the intake air to the blade portion 70 or the brush portion 69. It may be.

The communication tube 64 is not limited to the structure provided in the case body 24 so as to be rotatable and rotatable by the communication tube portion 63 and the joint portion 61. Any structure, such as one provided so as not to move and rotate, may be used.

Although the communication pipe 64 is provided substantially at the rear center of the case body 24, it may be provided at any position.

[0064]

According to the first aspect of the present invention, the rotary cleaning body is provided at a position not opposed to the communication pipe in the suction chamber in which the rotary cleaning body is disposed with the suction port opened on the lower surface. To provide a dust-removing part having a regulating surface that is cross-sectioned to the outer peripheral tangent direction and substantially along the axial direction of the rotating cleaning body and has a regulating surface substantially opposed to the rotating direction of the rotating cleaning body. The dust sucked up from the surface and sucked into the suction chamber from the suction port comes into contact with the regulation surface of the dust removal portion, is guided to the communication pipe along the regulation surface, and rotates in the suction chamber along with the rotation of the rotary cleaning body. Stagnation, dust can be efficiently absorbed, and noise generated by, for example, a large number of sucked hard members colliding with the inner surface of the suction chamber can be prevented.

According to the second aspect of the present invention, the suction port is opened from the surface to be cleaned through the suction port by the dust removal portion provided in the suction chamber in which the suction port is opened on the lower surface and the rotary cleaning body is provided. The dust sucked into contact with the rotating cleaning body is regulated to rotate with the rotation of the rotating cleaning body and guided to the communication pipe, so that it is possible to prevent the rotating cleaning body from rotating and accumulating in the suction chamber due to the rotation of the rotating cleaning body. In addition to being able to efficiently absorb dust, it is possible to prevent noise generated by, for example, a large number of sucked hard members colliding with the inner surface of the suction chamber.

According to the suction port of the vacuum cleaner according to the third aspect, in addition to the effect of the suction port of the vacuum cleaner according to the first or second aspect, the dust removing portion is provided on the outer peripheral surface of the shaft member in the axial direction. Since the cleaning member is provided so as to be in contact with the cleaning member of the soft member of the rotary cleaning body provided along the wall along the wall, the cleaning member is brought into contact with the debris removing portion, and the dust adhering to the cleaning member is peeled off and removed. It is possible to suppress the reduction of the dust-raising property of the cleaning member due to the adhesion of the dust, reliably absorb the dust that has been scraped, improve the cleaning efficiency, prevent the cleaning member from becoming dirty, and easily perform maintenance and management.

According to the suction port of the vacuum cleaner according to the fourth aspect, in addition to the effect of the suction port of the vacuum cleaner according to the third aspect, the dust removing portion is harder than the cleaning member and is provided on the outer peripheral surface of the shaft member. Prevents noise from being generated by the relatively hard blades of the rotary cleaning body abutting on the dirt-removing part, since it is provided so as not to abut against the blades of the rotary cleaning body provided in a wall along the axial direction. In addition to this, it is possible to reduce the load of the rotation of the rotary cleaning body and efficiently rotate the rotary cleaning body to prevent a reduction in dust scraping efficiency.

According to the vacuum cleaner of the fifth aspect, the suction port of the vacuum cleaner according to any one of the first to fourth aspects, wherein the sucked dust is efficiently collected without staying and prevents generation of noise. Since the body is provided, the cleaning property can be improved and the cleaning environment can be improved.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing the vicinity of a dust suction port according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the electric vacuum cleaner.

FIG. 3 is a plan view of the suction port body with the upper case removed.

FIG. 4 is a bottom view of the suction port body.

FIG. 5 is a central side sectional view of the suction port body.

FIG. 6 is a cross-sectional view of the suction port body near the closed dust suction port.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner body 14 Suction port body 24 Case body 30 Suction port 31 Suction chamber 51 Dust removal part 51a Regulatory surface 64 Communication pipe 67 Rotary cleaning body 68 Shaft as shaft member 69 Brush part as cleaning member 70 Blade part

Claims (5)

[Claims] 1. A case body having a suction chamber having a suction port opened on a lower surface facing a surface to be cleaned, a communication pipe provided with one end of the case body communicating with the suction chamber, and the suction chamber. A rotary cleaning body rotatably disposed in the suction chamber, at least at a position not opposed to the communication pipe, intersecting an outer circumferential tangent direction of the rotary cleaning body and extending in an axial direction of the rotary cleaning body. A dust removing portion having a substantially planar wall surface and a regulation surface substantially opposing the rotating direction of the rotary cleaning body. 2. A case body having a suction chamber having a suction opening on a lower surface facing a surface to be cleaned, a communication pipe provided at one end of the case body with communication with the suction chamber, and the suction chamber. A rotatable cleaning member rotatably disposed in the suction chamber, wherein dust sucked from the surface to be cleaned through a suction port abuts and rotates with the rotation of the rotatable cleaning member. A dust removing portion for regulating the pressure and guiding the dust to the communication pipe. 3. A rotary cleaning body comprising: a cleaning member formed of a shaft member and a soft member, provided on an outer peripheral surface of the shaft member in a wall shape extending in an axial direction, and scraping dust from a surface to be cleaned. The suction port body of a vacuum cleaner according to claim 1 or 2, wherein the portion is provided so as to be able to abut on a cleaning member of the rotary cleaning body. 4. The rotary cleaning body includes a blade formed to be harder than the cleaning member and provided on an outer peripheral surface of the shaft member in a wall shape along an axial direction and for scraping dust from a surface to be cleaned. 4. The suction port body for a vacuum cleaner according to claim 3, wherein the suction port body is provided so as not to come into contact with a blade portion of the rotary cleaning body. 5. A vacuum cleaner comprising: a vacuum cleaner main body; and a suction port of the vacuum cleaner according to claim 1, which is connected to the vacuum cleaner main body.