JP2001029282A - Vacuum cleaner and its suction port - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction port for a vacuum cleaner, capable of trapping dust independently of the conditions of a cleaned surface and reducing a load on a driving means. SOLUTION: A rotary cleaning body 46 which is rotated with a suction stream is stored in a suction portion 26 with a suction port 30 open on the lower face of a case 24. A shaft 48 having a spiral recessed groove in the peripheral face is provided with a setting 54 to be engaged with the recessed groove at one edge of an elongated plane napped cloth 53b, to which a soft cleaning member is secured for contacting a flooring, a TATAMI or a carpet. The setting 54 is disposed at one edge of a double cloth blade having a napped cloth 53c folded and a medium cleaning member 51 harder than the soft cleaning member 50 is secured shorter than the soft cleaning member coming into contact with a flooring and a TATAMI. The setting is integrally formed at one edge of the elongated plane blade with the soft member and a hard cleaning member 52 harder than the medium cleaning member 51 is secured shorter than the medium cleaning member 51 coming into contact with a carpet only. As a result, contacting modes are differentiated properly depending on floor conditions and dust trapping performance is improved without increasing a load.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, a suction port of a vacuum cleaner provided with a rotary cleaning body in which a plurality of mounting grooves are spirally formed on an outer peripheral surface of an elongated columnar shaft member, and cleaning members of different materials are mounted in these mounting grooves. The body is known. And this rotary cleaning body,
A blade portion formed in a substantially band shape by a soft member such as rubber as a scraping member and a cloth blade portion provided in a substantially band shape with a raised cloth as a cloth member having a raised surface as a floor polishing member are respectively mounted in mounting grooves. It is configured. When cleaning with the suction opening body equipped with this rotary cleaning body, the blade part scrapes out dust when cleaning carpets and the like, and the cloth blade part like a mop when cleaning between plates etc. The dust is swept while the floor is polished between the boards, and the dust removing effect can be obtained both between the boards and the carpet.

[0003] However, in the configuration including the blade section and the cloth blade section, when cleaning the carpet, the cloth blade section cannot obtain the effect of scraping the carpet.

Therefore, for example, a configuration described in Japanese Patent Application Laid-Open No. H11-56707 is known. This Japanese Patent Application Laid-Open No. 11-5
Japanese Patent No. 6707 discloses that a cloth member is attached to a blade portion of an elongated flat plate made of a soft member to form a strong waist, thereby obtaining a floor polishing effect and a sweeping effect and a dust removal effect. A configuration is employed in which a floor polishing effect can be obtained without reducing the scraping effect.

[0005]

However, the one disclosed in Japanese Patent Application Laid-Open No. H11-56707 has an effect that a cloth member is attached to a strong blade portion to effect a floor polishing between plates and a dusting effect on a carpet. Therefore, a large load is applied to the driving means for rotating and driving the rotary cleaning body due to the cloth member having a large friction with the carpet, so that a large driving means is required, and the suction port body can be downsized. Absent.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a vacuum cleaner capable of capturing dust regardless of the state of a surface to be cleaned and reducing a load applied to a driving means, and a suction port body thereof. Aim.

[0007]

According to a first aspect of the present invention, there is provided a vacuum cleaner having a suction opening having a suction opening on a lower surface facing a surface to be cleaned, and a suction opening facing the surface to be cleaned. A rotatable cleaning body rotatably supported by the rotary cleaning body. The rotatable cleaning body has an elongated columnar shaft member, and is mounted on the shaft member so as to protrude in a wall shape in a radial direction, and is formed in an elongated flat plate shape by a cloth member. The soft cleaning member is formed to be shorter and longer than the dimension of the soft cleaning member protruding in the radial direction from the shaft member so as to protrude in a wall shape in the radial direction, and is formed into a hard and elongated flat plate shape than the soft cleaning member. A medium-quality cleaning member, and a rigid member formed to be shorter and longer than the dimension of the medium-type cleaning member protruding in the radial direction from the shaft member and protruded in a wall shape in the radial direction, and to be harder than the medium-quality cleaning member and formed in an elongated flat plate shape. And a cleaning member.

A soft cleaning member formed in an elongated flat plate shape with a cloth member is attached to the elongated columnar shaft member so as to protrude in the shape of a wall, and the protrusion is shorter than the soft cleaning member and is formed in a hard and elongated flat plate shape. Because the quality cleaning member is attached, and the protruding dimension is shorter than the medium quality cleaning member, and the hard cleaning member formed in a hard and elongated flat plate shape is attached to form the rotary cleaning body,
For example, between a board and the like, a soft cleaning member scrubs the floor by scrubbing the floor and dust, and in a tatami room, a medium cleaning member sweeps the dust while hitting the tatami mat. Since the softest cleaning member, which is the softest, has almost no load, the load on the driving means for rotating the rotary cleaning body does not increase, so that the dust capturing property is improved regardless of the type of the surface to be cleaned, and the driving force is increased. Downsizing can be easily achieved by downsizing the means.

[0009] The suction opening of the vacuum cleaner according to claim 2 is
The suction port of the vacuum cleaner according to claim 1, wherein the hard cleaning member includes a blade formed of a soft member into an elongated flat plate shape.

Since the hard cleaning member is provided with a blade formed of a soft member in the shape of an elongated flat plate, for example, the effect of scraping dust while hitting a carpet can be obtained to improve the dust catching property, and also to improve the lint and hair. The entanglement is suppressed, and even if entangled, the entanglement can be easily removed, thereby improving the maintainability.

According to a third aspect of the present invention, there is provided a vacuum cleaner having a vacuum cleaner main body and a suction port of the vacuum cleaner according to the first or second aspect connected to the vacuum cleaner main body.

[0012] Further, for example, the dust capturing performance can be improved regardless of the type of the surface to be cleaned without increasing the load on the driving means, and the driving means can be miniaturized. Since the suction port body of the vacuum cleaner is used, the cleaning operation is easy, and the cleaning performance is improved by the improvement of the dust catching property.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a suction port of a vacuum cleaner according to an embodiment of the present invention.

In FIG. 12, reference numeral 1 denotes a cleaner body. The cleaner body 1 includes a lower body case 2a having an open upper surface, and an upper body case 2b for closing the rear upper surface of the lower body case 2a. And a main body case 2 having a front upper surface opened by being joined to and sandwiching a bumper 3 at a peripheral edge including the above. 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 not-shown rotatable revolving wheel 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 main body 1 can travel on a floor surface to be cleaned with the turning wheel and the driven wheel 6. Further, a handle 7 slidable in a vertical direction is provided at an upper portion of the main body case 2.

In the cleaner body 1, an electric blower chamber for accommodating an electric blower (not shown) is formed on the rear side, and communicates with the suction side of the electric blower and is open at the top to open the lid 4. A dust collecting chamber (not shown) which is opened / closed and accommodates a dust collecting filter is defined on the front side. Further, on the front side of the cleaner body 1, there is formed a connection port 9 which opens toward the dust collection chamber and to which a hose 8 is detachably connected.

The hose 8 has a flexible hose body 11.
A connection pipe 12 provided at one end of the hose body 11 and removably inserted and connected to the connection port 9 of the cleaner body 1;
A grip 15 is provided at the other end of the hose body 11 and is connected to a suction port body 14 via an extension pipe 13. The grip 15 is provided with operating means 17 having various switches 16, 16 for setting and operating the driving state of the electric blower.

On the other hand, as shown in FIG. 1 to FIG. 8, the suction port main body 14 is
A lower case 21 having an open upper surface made of a synthetic resin such as acrylonitrile-butadiene-styrene (ABS) resin;
An upper case 22 that covers the upper opening and opens the lower surface of the same material at the upper portion of the lower case 21 is a soft member buffer along the peripheral surface including the front surfaces of the lower case 21 and the upper case 22.
There is provided a convex case body 24 which is fixedly connected to and sandwiches the rear portion 23, and whose rear substantially center is projected rearward.

The lower case 21 has a rib portion 25 substantially vertically on the upper surface, and the case body 24 has a horizontally elongated rectangular suction portion 26 and an air passage communicating with a substantially rear center of the suction portion 26 by the rib portion 25. A chamber 27 and an intake chamber 29, which constitutes a driving unit that is located on both sides of the air passage chamber 27 and opens an intake port 28 upward in the upper case 22, are defined and formed on the surface to be cleaned of the suction unit 26. A suction port 30 is formed on a lower surface facing a certain floor surface at a position deviated to the front side in the traveling direction of the case body 24. In addition, the intake chamber
29 and the suction portion 26 are formed by a rib portion 25 on the front side that defines the suction chamber 29.
A communication port 31 is cut out at the lower end of the intake chamber 29 and the suction section.
Communicates with 26. At a position corresponding to the communication port 31 of the lower case 21, a horizontally long window portion 32 that opens downward is formed. The upper case 22 facing the intake port 28 has a plurality of through holes 28a corresponding to the position of the intake port 28.
, 28a are provided.

On the rear surface of both ends of the lower case 21 in the longitudinal direction, a knob 34 is provided slidably in the longitudinal direction. Further, as shown in FIGS. 6 and 7, a joining claw portion 35 is provided on the rear surface of both ends in the longitudinal direction of the upper case 22 so that the knob body 34 is disengageably engaged. The lower case 21 and the upper case 22 are detachably joined to each other.
And the upper part of the intake chamber 29 is opened.

Further, on both ends of the front part of the lower case 21,
A driven front wheel chamber 36 is formed as a shaft support portion on which a driven front wheel 36a is rotatably supported. A pair of pivots 37, 37 project toward the center of the rear part of the lower case 21 in the direction, and the driven pivots 37, 37 rotatably support a driven rear wheel 38a, which is a wheel. A rear wheel chamber 38 is formed. The driven rear wheel 38a has a protective sheet 39 made of a flexible member such as a raised cloth or an elastic member such as rubber on the outer peripheral surface.
Is provided. Then, the case body 24 is
a and the driven rear wheel 38a can travel on a floor surface (not shown) which is a surface to be cleaned. Further, a seal lip 40 is provided at the lower front end of the lower case 21 between the driven front wheels 36a, 36a, and the driven front wheels 36a, 36
A brush body 41 is provided closer to the end than a.

In the center of the rear portion of the case body 24, the driven front wheel 36a and the driven rear wheel 36a and the driven rear wheel
38a, between the pair of shaft supports 37, 37, ie, the driven front wheels 36a, 36a and the driven rear wheels 38a, 38a.
A communication pipe 42 is provided at substantially the center of the communication pipe. The communication pipe 42 is rotatably fitted to a substantially cylindrical connection pipe 43 that is provided at a substantially rear center of the case body 24 and communicates with the air passage chamber 27 and protrudes rearward. One end is attached to the joint portion 42a such that the end is rotatable in the up-down direction, and the communication tube portion 42b communicates with the connection tube portion 43 and is axially supported. The communication pipe 42 is rotated by the joint part 42a and the communication pipe part 42b, so that the axial direction of the communication pipe part 42b is in the longitudinal direction, which is the running direction of the case body 24, and in the longitudinal direction. It is supported to be selectable.

The communication pipe 42 is detachably connected to the cleaner main body 1 via the extension pipe 13 and the hose 8, and the suction port 30 communicates with the connection port 9 of the cleaner main body 1.

Further, in the case body 24, there is provided a rotary cleaning body 46 which is rotatably supported by bearings 45 provided at both ends of the suction portion 26 in the left-right direction. The rotary cleaning body 46 is a shaft 48 provided with a concave groove 47 spirally in the axial direction of the peripheral surface, and is rotatably provided at both ends of the shaft 48 so as to be detachably engageable with a bearing 45. A substantially quadrangular prism-shaped support member 49 to be mounted is provided. As shown in FIG. 1 and FIGS. 6 to 8, one side of the shaft 48 along the longitudinal direction is engaged with the concave groove 47 of the shaft 48, and a soft cleaning in the form of an elongated flat plate provided in a spiral wall shape. Member 50
And an elongated flat plate-shaped medium cleaning member provided in a spiral wall shape with a shorter projecting dimension from the shaft 48 than the soft cleaning member 50.
There are provided three pairs of a hard cleaning member 52 in the form of an elongated flat plate provided in a spiral wall shape and having a shorter projecting dimension from the shaft 48 than the intermediate cleaning member 51. . Driving means includes the soft cleaning member 50, the medium cleaning member 51, the hard cleaning member 52, and the suction chamber 29 that opens the suction port 28.

The shaft 48 is formed by extrusion or insert molding of, for example, an aluminum alloy or the like, and the concave groove 47 has an enlarged portion 47a whose inside becomes wider in the circumferential direction.
And a communicating portion 47b communicating from the enlarged portion 47a to the outer peripheral surface.
, A step is formed, and the cross-sectional shape is formed substantially in the shape of a limb.

The soft cleaning member 50 is made of, for example, a cloth blade 53b, which is a cloth member made of polyester and has raised surfaces 53a provided on both sides thereof, cut out into an elongated flat plate shape, and a longitudinal direction of the cloth blade 53. A pedestal 54 is formed at one edge of the groove 54 so as to be able to be engaged and disengaged with soft vinyl chloride or the like in substantially the same shape as the cross-sectional shape of the concave groove 47.

Further, the medium cleaning member 51 is formed by folding a raised cloth 53c which is an elongated flat-plate-shaped cloth member made of, for example, polyester and provided with a raised 53a on one surface so that the raised 53a is positioned on the outer surface side. Double structure double cloth blade
55, and a pedestal 54 formed on the folded edge side of the double cloth blade 55 in the same manner as the soft cleaning member 50.

The hard cleaning member 52 includes a blade 57 having an elongated flat plate-like shape made of, for example, soft vinyl chloride or the like, and a scraping portion 56 provided on both sides on one side in the longitudinal direction along the longitudinal direction in an uneven shape. The other end of the blade 56 in the longitudinal direction has a pedestal portion 54 integrally formed of the same material in the same manner as the soft cleaning member 50 and the medium cleaning member 51.

The rotating cleaning body 46 contacts only the cloth blade 53 of the soft cleaning member 50 when the surface to be cleaned (not shown) is between the plates. When only the double cloth blade 55 of the medium cleaning member 51 contacts, and the surface to be cleaned is a carpet, the cloth blade 53 of the soft cleaning member 50, the double cloth blade 55 of the medium cleaning member 51, and the blade of the hard cleaning member 52 All 57 are arranged in contact.

The case body 24 has a communication port 31 for communicating the intake chamber 29 and the suction section 26 and a window 32 of the lower case 21.
A rotary member 59 which constitutes the intake air flow switching means and also has a function as a seal portion is disposed so as to close the air passage. The rotating body 59 includes a substantially cylindrical roller portion 59a constituting a traveling direction detecting means of the intake air flow switching means, and a roller portion 59a.
A shaft portion 59b protruding coaxially at both axial ends of 59a;
An intake air passage 59c as an air passage radially penetrating the roller portion 59a, and an upstream guide portion 59d1 and a downstream guide portion protruding along the opening edge of the intake air passage portion 59c.
59d2. The upstream guide section 59d1 is an intake chamber
It is located on the 29 side and expands toward the intake chamber 29, and the downstream guide portion 59
d2 is located on the suction portion 26 side and is formed to protrude into a nozzle shape.

The rotating body 59 has a shaft 59b formed of a case body.
24, and a wiping member 61 such as a brushed cloth provided on at least a part of the outer peripheral surface of the roller portion 59a is in contact with the floor surface. It is pivotally supported so that it can follow along. Note that the rotation of the rotating body 59 is performed by moving the upstream guide portion 59d1 to the edge of the window portion 32 or the communication port 31.
Is restricted to a predetermined rotation range by abutting against the edge of.

As shown in FIG. 6, the intake air passage portion 59c of the rotating body 59 has the upstream guide portion 59a in contact with the rib 25 opening the communication port 31. Facing the blade 50 located below the body 46, the upstream guide portion
With the 59d1 in contact with the rear edge of the window 32, the downstream guide portion 59b is formed so as to face the blade 50 located above the rotary cleaning body 46, as shown in FIG.

The upstream guide portion 59d1 is provided with an interlocking piece 62 as an operating piece projecting in a tongue shape.

Further, a suction port is provided on the lower surface of the lower case 21.
A wiping member such as a brushed cloth, similar to the rotating body 59, which is located in the rear of the rotating body 59 and located in the left-right direction and located between the rotating bodies 59.
Cleaning body that also functions as a seal with 61 provided on the lower surface
63 is provided coaxially with the rotating body 59 and is rotatably provided with the rotating body 59.

On the other hand, on the lower surface of the lower case 21,
A concave groove-shaped dust suction air passage 65 is provided downward from the lower surface of the driven rear wheel chamber 38 and communicates with the rear edge of the suction port 30 through the space between the rotating body 59 and the cleaning body 63.

A display chamber 68 having a display window 67 opened upwardly in the upper case 22 is provided in one of the shaft support portions 37, and is formed in the intake chamber 29 by ribs 25 which are provided at upper and lower sides and are engaged with the tips. Sections are formed in communication. In the display room 68, a display 70 as a display means is provided. This display body
Reference numeral 70 has a substantially fan-shaped display section 71 as shown in FIGS. Then, on the arc-shaped outer peripheral surface of the display section 71, a display 72a, a display direction of which is opposite to the display direction in the outer peripheral direction, is provided.
72b, that is, a display 72a indicating the traveling direction of the suction port main body 14.
, 72b are provided. Further, the display unit 71 is provided integrally with a rotating shaft 73 projecting in the axial direction at a position of the central angle. The rotating shaft 73 is rotatably supported so as to be sandwiched by upper and lower ribs 25 that define the display chamber 68, and the display surface 70 faces the display window 67 so that the display body 70 can rotate freely. It is arranged in. It should be noted that the indications 72a and 72b on the display surface 72 are such that when the display body 70 is rotated forward, the indication 72b that the suction port body 14 is retreating faces the display window 67, and the display body 70 is rotated backward. Then, a display 72a indicating that the suction port main body 14 is moving forward faces the display window 67.

Further, the display body 70 is provided with an interlocking piece 62 provided in the upstream guide portion 59a of the rotating body 59 and protruding in the form of a pair of tongues near the front end edge of the display surface 72 and being provided in a substantially V-shaped manner. There is provided an interlocking engagement portion 75 that engages with the. When the rotary body 59 is rotated forward by the advance of the suction port main body 14, the interlocking piece 62 is moved to the interlocking upper portion 75a located above the interlocking engagement portion 75.
, The display body 70 pivots rearward to display 72 on the display window 67.
b, and the rotating body 59 rotates rearward due to the retreat of the suction port main body 14, whereby the interlocking piece 62 abuts on the interlocking engagement lower portion 75b located below the interlocking engagement portion 75, and the display body 70 is moved. The display 72a is turned forward and the display 72a faces the display window 67.

Further, the display body 70 has a tip end of one of the rotating shafts 73 which is supported by the ribs 25 and protrudes out of the display chamber 68. A biasing support piece 76 protruding in a tongue shape is provided. The rotating shaft 73 provided with the biasing support piece 76 has a torsion spring 77 as biasing means positioned outside the display chamber 68.
Is supported by the shaft. This torsion spring
One end 77 is engaged with a biasing support piece 76, the other end abuts against the bottom surface of the shaft support 37, and biases the display body 70 in a direction of constantly rotating forward, that is, a suction port is provided in the display window 67. The main body 14 is biased so that the display 70b indicating that the main body 14 is retreating faces. By this bias, the rotating body 59 having the interlocking piece 62 engaged with the interlocking engagement portion 75
Is always urged to rotate rearward.

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

At the time of cleaning, the suction body 14 is connected to the cleaner body 1 via the extension pipe 13 and the hose 8, and the hose 8
The suction port main body 14 is moved forward and backward on the floor surface to be cleaned by pushing the holding portion 15. When the cleaning is performed by running on the floor, the axial direction of the communication pipe portion 42b of the communication pipe 42 is at a position along the front-back direction of the case body 24.

Then, with the suction force generated by driving the electric blower of the cleaner body 1, the air is sucked from the suction port 28 through the through hole 28a of the lattice portion 33 and is also sucked from the suction port 30. Here, the air passage resistance from the outside through the lower surface of the case body 24 to the inside of the suction portion 26 from the suction port 30 increases,
The amount of intake air from the intake port 28 tends to increase.

Further, when the floor surface is a carpet such as a carpet, which has a particularly long bristle feet, the bristle feet enter the suction section 26 from the suction port 30, so that the amount of air suctioned from the suction port 28 further increases. .

The air sucked from the air inlet 28 is
It flows into the intake chamber 29, is guided by the upstream guide portion 59d1, flows through the intake air passage portion 59c of the rotating body 59, and flows from the downstream guide portion 59d2 to the soft cleaning member 50 and the medium cleaning member 51 of the rotary cleaning body 46. Then, the hard cleaning member 52 is sprayed, and the rotating cleaning body 46 is rotated to reach the connecting pipe portion 43 that supports the communication pipe 42 from the air passage chamber 27.

Here, when the suction port main body 14 moves forward during cleaning, as shown in FIG. 6, the wiping member 61 that comes into contact with the floor surface causes the rotating body 59 to move forward with respect to the running direction. Rotating backward, which is forward rotation, the upstream guide part 59d1 is a communication port
The forward rotation of the rotator 59 is restricted by contacting the rib portion 25 opening the opening 31, and the downstream guide portion 59d2 is provided with the soft cleaning member 50, the medium cleaning member 51, and the hard cleaning member 52 located below the rotary cleaning member 46. Turn to. Then, the intake air flow that has flowed into the intake chamber 29 is
The soft cleaning member 50, the medium cleaning member 51, and the hard cleaning member that are guided by the upstream guide portion 59d1 and flow through the intake air passage portion 59c, and are located below the rotary cleaning body 46 from the downstream guide portion 59d2.
52, the rotating cleaning body 46 rotates in a reverse direction to the forward movement.

Further, by rotating the rotating body 59 backward,
As shown in FIG. 9, the display body 70 pivots rearward by contacting the interlocking upper portion 75a of the display body 70 with which the interlocking piece 62 of the upstream guide portion 59d1 of the rotating body 59 engages so as to push upward. . The display window 67 indicates that the suction port body 14 is moving forward.
72a comes and informs the cleaning worker.

On the other hand, when the suction port body 14 moves backward during cleaning, as shown in FIG. 7, the rotating body 59 rotates forward, ie, forward rotation with respect to the backward movement, and the upstream guide portion 59d1 moves downward. The forward rotation of the rotator 59 is restricted by contacting the edge of the window 32 of the case 21, and the downstream guide portion 59d2 includes a soft cleaning member 50, a medium cleaning member 51, and a hard cleaning member located above the rotary cleaning member 46. 52
Turn to. The intake air flowing into the intake chamber 29 is guided by the upstream guide portion 59d1 and flows through the intake air passage portion 59c.
The soft cleaning member 50, the medium cleaning member 51, and the hard cleaning member 52 located above the rotary cleaning member 46 are sprayed from the downstream guide portion 59d2, and the rotary cleaning member 46 rotates reversely with respect to the retreat.

The rotation of the rotating body 59 backward causes the upstream guide portion 59d1 of the rotating body 59 to rotate as shown in FIG.
The interlocking piece 62 is engaged with the interlocking engagement lower portion 75b of the display body 70 so as to push down, and the display body 70 rotates forward. Then, a display indicating that the suction port main body 14 is retracted comes from the display window 67 and notifies the cleaning worker.

Here, when the surface to be cleaned is between the plates, the cloth blade of the soft cleaning member 50 of the rotary cleaning body 46 which projects the most.
Only the 53 is in contact with the wiping between the boards, rubbing the floor and wiping off any dust. The medium cleaning member 51 and the hard cleaning member 52, which are harder than the soft cleaning member 50, do not contact between the plates, so that damage such as scratching between the plates does not occur.

When the surface to be cleaned has a slight unevenness such as a tatami mat, the soft cleaning member 50 of the rotary cleaning body 46 which projects most is provided.
The cloth blade 53 contacts the tatami so as to wipe off the tatami, and the second protruding double cloth blade 55 of the intermediate cleaning member 51 touches the tatami to wipe the dust. Since the soft cleaning member 50 and the medium cleaning member 51 are formed by the cloth members 53a and 53c, even if the soft cleaning member 50 and the medium cleaning member 51 come into contact with the tatami, no damage such as damaging the tatami occurs.

Further, when the surface to be cleaned is a carpet or the like,
The cloth blade 53 of the soft cleaning member 50 and the double cloth blade 55 of the medium cleaning member 51 come into contact with the carpet, and the hard cleaning member 52 lifts and scratches the dust as if hitting and scratching the carpet. Since the soft cleaning member 50 and the medium cleaning member 51 are formed of the cloth members 53a and 53c and are soft, they do not cause a large load even when they come into contact with a carpet. Because of the increase, the rotary cleaning body 46 can sufficiently rotate with the amount of air suctioned from the air inlet 28.

The dust thus swept or scraped is sucked through the suction port 30 as it is, and flows into the communication pipe 42 through the suction portion 26 together with the intake air flow.

Here, when the hose 8 is opened on the floor surface with the lower surface of the suction port main body 14 separated from the floor surface to move furniture and the like, and to move a cleaning place, the opening area becomes large. Further, since the air path resistance from the air inlet 30 where the air path to the suction part 26 is not formed is smaller than the air path resistance sucked from the air inlet 28 through the air inlet chamber 29, the air is sucked from the air inlet 30. As the air volume increases, the air volume sucked from the air inlet 28 decreases. For this reason, the rotary cleaning body 46
Soft cleaning member 50, medium cleaning member 51 and hard cleaning member
The intake air blown to 52 weakens, and the rotation speed of rotary cleaning body 46 is greatly reduced or stopped.

When cleaning the gap between furniture and below the furniture, the communication pipe 42 is rotated and rotated, that is, rotated by the joint 42a and the communication pipe 42b is rotated. Along the longitudinal direction of the case body 24,
The longitudinal direction of the suction port body 14 is set along the axial direction of the extension pipe 13, and the suction port body 14 is slid into a gap between furniture and a gap below the furniture for cleaning.

According to the above-described embodiment, the soft cleaning member 50 formed in the shape of an elongated flat plate is attached to the shaft 48 by using the napping cloth 53a so as to protrude like a wall. The rotary cleaning body 46 is configured by attaching a flat cleaning member 51 formed in a flat plate shape, and attaching a hard cleaning member 52 formed in a hard and elongated flat plate shape having a shorter protruding dimension than the intermediate cleaning member 51. The soft cleaning member 50 captures the dust by polishing the floor and sweeping the dust, the medium cleaning member 50 sweeps the dust while hitting the tatami, and the carpet etc. uses the hard cleaning member 52 to remove the dust. The softest cleaning member 50 which is the softest is hardly loaded. For this reason, the contact state of the soft cleaning member 50, the medium cleaning member 51, and the hard cleaning member 52 is different in various floor conditions, and the type of the surface to be cleaned can be changed without increasing the torque for rotating the rotary cleaning body 46. Irrespective of whether the dust trapping property can be improved, it is not necessary to open the intake port 28 so as to greatly increase the intake volume, so the suction volume from the suction port 30 can be secured without increasing the size of the case body 24. ,
Dust can be reliably captured.

Further, since the hard cleaning member 52 is provided with the blade 57 formed in a slender plate shape by a soft member, the effect of scraping dust while hitting a carpet can be obtained, so that the dust catching property can be improved and the lint can be removed. It is possible to prevent entanglement of hair and hair, etc., and even if entangled, the blade 57 can prevent the thread dust and hair from directly entangled with the shaft 48 and can be easily removed. Maintainability can be improved.

In the above embodiment, not only the canister-type vacuum cleaner but also an upright type in which the suction port main body 11 is formed directly on the lower surface of the cleaner main body 1, and the vacuum cleaner main body 1 and the suction port The present invention can also be applied to a self-propelled vacuum cleaner in which the main body 11 is integrated.

The number of the rotary cleaning bodies 46 is not limited to one, but may be plural.

In the above description, the soft cleaning member 50, the medium cleaning member 51, and the hard cleaning member 52 are provided in three pairs.
Three or one pair may be provided one by one, or may be attached to the shaft 48 linearly so as to have a longitudinal direction along the axial direction of the shaft 48 instead of a spiral shape.

The cloth member is not limited to the raised cloths 53b and 53c provided with the raised 53a, but may be any cloth member having a floor polishing, wiping, or sweeping effect, such as a woven cloth or a nonwoven cloth having no raised cloth. .

Further, the medium cleaning member 51 is formed by using a raised cloth, but may be formed by using a soft member which is softer than the soft member forming the hard cleaning member 52, for example. Similarly, the hard cleaning member 52 is formed of a soft member. However, the hard cleaning member 52 may be formed using a raised cloth that is harder than the medium cleaning member 51. In other words, the longest one may be formed so that the longest one is the softest and the shorter the dimension protruding from the shaft 48, the harder.

The shaft member is not limited to the shaft 48, but may be any shape such as a cylindrical shape.

On the other hand, the rotary cleaning body 46 is driven to rotate by the suction air by opening the air inlet 28. However, the rotary cleaning body 46 is driven to rotate by an air turbine, an electric motor, or the like via a drive transmission means such as an endless belt or gears. An axial turbine serving as a drive source is provided coaxially at both ends or an intermediate portion of the rotary cleaning body 46,
The rotary cleaning body 46 may be rotated by blowing an intake air flow onto a wall-shaped wind receiving plate of the axial turbine.

Further, although the suction chambers 29 which open the suction ports 28 are provided on both the left and right sides, however, only one, a plurality, or no suction chambers may be provided. The rotating cleaning body 46 may be rotated.

A valve or shutter may be separately provided in the intake chamber 29 so as to continuously adjust the opening degree and change the rotation speed of the rotary cleaning body 46.

Although the rotating member 59 for detecting the traveling direction is provided so that the rotating direction of the rotary cleaning member 46 can be switched, the traveling direction detecting means such as the rotating member 59 is not provided. It may be rotatable only in the direction. In this case, the soft cleaning member 50 may be formed by a raised cloth 53c having a raised surface so that the raised surface 53a of the soft cleaning member 50 faces the rotation direction.

The brush body 35 is not limited to the one having the raised cloth 41, but may be any one such as one in which brush bristles are directly planted on the pedestal portion 54.

[0067]

According to the first aspect of the present invention, the suction member of the vacuum cleaner has a soft cleaning member formed into a slender flat plate shape with a cloth member, and a hard and slender flat plate member having a shorter protruding dimension than the soft cleaning member. Since the medium cleaning member formed in the above, and a hard cleaning member formed in a hard and elongated flat plate shape having a shorter protruding dimension than the medium cleaning member was attached to the shaft member, the rotary cleaning body was configured.
For example, between a board and the like, a soft cleaning member scrubs the floor by scrubbing the floor and dust, and in a tatami room, a medium cleaning member sweeps the dust while hitting the tatami mat. Since the softest soft cleaning member that is the softest is hardly loaded, the load on the driving means for rotating the rotary cleaning body does not increase, and the dust trapping ability can be improved regardless of the type of the surface to be cleaned, and the driving force can be improved. Downsizing can be easily achieved by downsizing the means.

According to the suction port of the vacuum cleaner according to the second aspect, in addition to the effect of the suction port of the vacuum cleaner according to the first aspect, the hard cleaning member is formed into an elongated flat plate shape by a soft member with a soft member. In order to provide a blade, for example, a dust scraping effect can be obtained while hitting a carpet, and the dust capturing property can be improved,
Lint and hair can be prevented from becoming entangled, and even if they are entangled, they can be easily removed and maintenance management can be improved.

According to the third aspect of the present invention, it is possible to improve the dust catching ability irrespective of the type of the surface to be cleaned without increasing the load on the driving means. Since the suction opening of the vacuum cleaner according to the first or second aspect of the present invention can be used, the suction opening can be easily arranged at the time of cleaning, and the ability to catch dust is improved, so that the cleaning performance can be improved.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a suction port main body showing one embodiment of the present invention.

FIG. 2 is a plan sectional view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a bottom view of the same.

FIG. 5 is a rear view of the same.

FIG. 6 is a side cross-sectional view of the end of the suction port main body during forward movement of the same.

FIG. 7 is a side cross-sectional view of the end of the suction port main body at the time of retreating in the same.

FIG. 8 is a cross-sectional view showing the rotary cleaning member of the above.

FIG. 9 is a side sectional view in which the vicinity of the display chamber is cut away when the suction port main body is moved forward.

FIG. 10 is a side sectional view in which the vicinity of the display chamber is cut away when the suction port main body is retracted.

FIG. 11 is a perspective view showing the display body.

FIG. 12 is a perspective view showing the main body of the cleaner.

[Explanation of symbols]

 1 Vacuum cleaner body 14 Suction port body 24 Case body 30 Suction port 46 Rotary cleaning body 48 Shaft as shaft member 50 Soft cleaning member 51 Medium cleaning member 52 Hard cleaning member 53b, 53c Brushed cloth as cloth member 57 Blade

Claims (3)

[Claims] 1. A case body having an inlet opening on a lower surface facing a surface to be cleaned, and a rotary cleaning body rotatably supported by the case body so as to face the surface to be cleaned and to be rotatable. The cleaning body includes an elongated column-shaped shaft member, a soft cleaning member that is attached to the shaft member so as to protrude radially in a wall shape, and is formed into an elongated flat plate shape with a cloth member, and the shaft member of the soft cleaning member. A medium-sized cleaning member which is shorter than the dimension protruding in the radial direction and is mounted so as to protrude in a wall shape in the radial direction, and which is harder than the soft cleaning member and is formed in an elongated flat plate shape; A hard cleaning member, which is shorter than the projecting dimension and is protruded in a wall shape in the radial direction and is harder than the intermediate cleaning member and formed in an elongated flat plate shape, is provided. . 2. The suction port body for an electric vacuum cleaner according to claim 1, wherein the hard cleaning member includes a blade formed of a soft member into an elongated flat plate shape. 3. A vacuum cleaner comprising: a vacuum cleaner main body; and a suction port of the vacuum cleaner according to claim 1 connected to the vacuum cleaner main body.