JP3183445B2 - Suction port of vacuum cleaner and its rotary cleaning body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention, Oyo suction mouth of the electric vacuum cleaner which houses the rotary cleaning body that is rotated by the drive means
And its rotary cleaner .

[0002]

Conventionally, as a rotary cleaning body received in the suction port body of this type of vacuum cleaner, for example, FIGS. 8 and 9
Is known.

The suction port of the vacuum cleaner shown in FIGS. 8 and 9 has a rectangular case body 51, a suction chamber 52 which is horizontally long in the left and right direction on the front side which is the advancing direction side, and a suction port on the rear side. An air path chamber 53 communicating with the chamber 52 is defined, and an electric motor 55 for rotating the rotary cleaning body 54 is provided at one end of the air path chamber 53. A suction port 56 is formed on the lower surface of the suction port main body 50 facing the floor surface, the suction port 56 communicating with the suction chamber 52 accommodating the rotary cleaning body 54 and projecting from the lower end of the rotary cleaning body 54.

On the other hand, the rotary cleaning member 54 is a substantially cylindrical shaft member.
58 has a spiral groove 59 in the axial direction.
A flexible band-shaped blade portion 60 is formed by engaging one side in the longitudinal direction. Further, the rotary cleaning body 54 is provided integrally with, for example, an adhesive at one end in the axial direction of the shaft member 58 through a belt 61 that transmits the drive of the electric motor 55 by bonding or the like, and at both ends of the shaft member 58 in the axial direction. A bearing 64 is rotatably provided to engage with a shaft support 63 provided in the suction chamber 52 so as to be opposed thereto, and the rotary cleaning body 54 is rotatably sucked by the rotation drive of the electric motor 55 so that the lower end protrudes from the suction port 56. A suction port is formed so as to be pivotally supported in the chamber 52.

However, in the suction port of the conventional vacuum cleaner shown in FIGS. 8 and 9 , since the rotary cleaning member 54 is provided with the blade portion 60, it is difficult to remove lint and the like entangled in a carpet or the like. Noise occurs when the blade portion 60 abuts between the plates.

On the other hand, it is known that a brush portion having brush bristles is provided in place of the blade portion 60. In the device provided with the brush portion, thread debris removed from a carpet or the like is entangled with the brush portion, The brush effect is reduced.

Therefore, a configuration using a rotary cleaning body provided with both a brush portion and a blade portion is known.

[0008]

However, in a conventional vacuum cleaner having a rotary cleaning body provided with both the brush portion and the blade portion, the brush portion is softer than the material of the blade portion. Because bristles made of lightweight material are bundled and planted at predetermined intervals, the weight is lighter than that of the band-shaped blade, so the weight balance is impaired and the rotating cleaning body rotates and rotates. Due to the rotational shake, there is a problem that the blade and the brush cannot substantially and efficiently scrape off dust and cannot be efficiently cleaned, and noise due to the rotational shake occurs.

[0009] The present invention has been made in view of the above problems, rotary cleaning body suction port body of the electric vacuum cleaner that does not cause rotation shake and this
An object of the present invention is to provide a suction port of a vacuum cleaner having a rotary cleaning element .

[0010]

According to a first aspect of the present invention, there is provided a rotary cleaner for a suction port body of a vacuum cleaner, wherein the rotary cleaning body is provided in a case body having a suction port opened on a lower surface, and is driven by driving means facing the suction port. rotary cleaning body der of the suction port body of the vacuum cleaner to rotation
And Tsu, the rotary cleaning body, the groove diameter side along the axial direction
A shaft member is rotatably supported to face the suction port into a plurality provided the case body located in direction, a strip-shaped blade
And provided on one side along the longitudinal direction of this blade
It said shaft said blade locking portion Ru engaged to one groove of member
A belt-shaped blade portion of a soft member having a shaft, and a blade engaged with the other groove portion of the shaft member and heavier than the blade locking portion.
A brush engaging portion and the brush engaging portion have a planted the <br/> bristles in a strip to the blade portion substantially the same weight of the brush part
It is provided with.

[0011] The suction opening of the vacuum cleaner according to claim 2 is
A vacuum cleaner comprising: a case body having a suction port opened on a lower surface thereof; and a rotary cleaning body for the suction port body of the electric vacuum cleaner according to claim 1 , provided facing the suction port .

[0012]

The rotary cleaner for the suction port of the vacuum cleaner according to claim 1.
The sweep body has a brush engaging portion that engages with the groove of the shaft member.
The brush part with a heavier weight than the blade
Parts and due to the substantially same weight, the weight balance between the different blade portion and the brush portion is taken, the rotation shake is prevented.

[0013] The suction opening of the vacuum cleaner according to claim 2 is :
Electrodeposition of claim 1, wherein the smoothly rotate without causing rotation shake
Efficiency is improved by providing a rotary cleaning body for the suction port of the vacuum cleaner.
It scraped the Ku dust, that to prevent the noise.

[0014]

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. 4, reference numeral 11 denotes a suction port main body which is horizontally long in the traveling direction.
12 and an upper body case 13 fixedly connected to an upper part of the lower body case 12 are joined by sandwiching a bumper 14 along a peripheral surface including a front surface of the upper and lower body cases 12 and 13 to form a rectangular shape. Case body 15 is formed.

In the lower body case 12, a rib 17 is formed substantially vertically on the upper surface, and a horizontally long suction chamber 18 is defined on the front side, which is the advancing direction side, in a substantially right and left direction. An air passage chamber 19 communicating with the suction chamber 18 at the center and this air passage chamber
An electric motor room 20 located at one end of the air passage 19 and a control room 21 located at the other end of the air passage room 19 are defined. Further, a suction chamber 18 is provided on the lower surface of the suction port body 11 facing the floor surface.
Is formed with an opening.

Further, a communication pipe 24 is attached to the center of the rear part of the suction port main body 11 by a rotation shaft 25 so as to be rotatable at a predetermined vertical angle. The front end of the communication pipe 24 is rotatably fitted inside the air passage chamber 19 and faces substantially the center of the suction chamber 18. The communication pipe 24 communicates with the suction chamber 18 via the air passage chamber 19. I do. On the other hand, the rear end of the communication pipe projects rearward and outward from the suction port main body 11, and the front end of the bent connection pipe 26 is rotatably fitted to the rear end. The connection pipe 26 is detachably connected to a hose via an extension pipe (not shown),
Furthermore, it is connected to a vacuum cleaner body (not shown). Then, the suction chamber 18 is communicated with the dust collecting chamber of the main body of the electric vacuum cleaner via the air path chamber 19, the communication pipe 24, the connection pipe 26, the extension pipe (not shown) and the hose.

The suction chamber 18 is provided with a rotary cleaning body 30. Then, the rotary cleaning body 30 is configured as shown in FIGS.
As shown in the figure, a cylindrical main body portion 32 as a shaft member in which a pair of formed groove portions 31 having a substantially squeezed cross-sectional shape in a spiral shape extending in the axial direction on the outer peripheral surface is positioned in the axial direction. The shafts 33 are respectively protruded from both ends of the shaft and are integrally formed by insert molding.

Further, at one end of the main body 32 in the axial direction,
The pulley 34 is formed integrally during insert molding.

The depth of the groove 31 provided in the main body 32 gradually decreases as it approaches the pulley 34, which is one end of the main body 32 in the axial direction. It is formed in a tapered shape so as to be large, that is, provided with a slight withdrawal taper for mold release after insert molding.

A flexible band-shaped blade 36 is engaged and fixed to one groove 31 of the main body 32.
The blade portion 36 includes a band-shaped blade 36a, and a blade engaging portion 36b bulging in the thickness direction on one side along the longitudinal direction of the blade 36a.
36b is engaged and fixed in the groove 31 of the main body 32, and the blade
36 is attached to the main body 32 so as to protrude like a wall.

Further, a brush part 37 is engaged and fixed to the other groove part 31 of the main body part 32. The brush portion 37 has the same shape as the blade engaging portion 36b of the blade portion 36 and has a blade portion.
A brush engaging portion 37b serving as a weight portion formed of a urethane-based or vinyl chloride-based synthetic resin having a higher specific gravity than 36, and brush bristles 37a planted in a belt shape on the brush engaging portion 37b, the blade The brush portion 37b is formed in substantially the same shape as the portion 36, and the brush engagement portion 37b is engaged and fixed in the groove portion 31 of the main body portion 32, and the brush portion
37 is attached to the main body 32 so as to protrude like a wall. The center of gravity of the rotary cleaning body 30 to which the blade section 36 and the brush section 37 are attached is a brush cleaning section 37b.
It is located on the rotation axis 30 so that the weight balance can be maintained, that is, the weight of the blade portion 36 and the brush portion 37 is substantially equal.

In the rotary cleaning body 30, a bearing 38 is rotatably provided by a plurality of washers 38 a on a shaft 33 projecting from both ends in the longitudinal direction, and the bearing 38 is attached to a shaft support 39 provided on the case body 15. The rotating cleaning body 30 is engaged with the case body 15 so as to be rotatable.

The tip of the blade 36 and the brush 37 of the rotary cleaning body 30 do not contact a flat floor surface such as a space between plates, but contact an elastically deformable floor surface such as a carpet or a tatami mat. In addition, a lower end portion of the rotary cleaning body 30 is provided to slightly protrude downward from the suction port 22.

Further, on both front and rear sides of the suction port main body 11,
The auxiliary wheels 40, 40 protrude from the lower surface of the lower main body case 12 and are rotatably supported, respectively, and the suction port main body 11 is slidable on the floor surface by the auxiliary wheels 40, 40.

Further, it projects downward from the front surface of the suction port body 11 toward the floor surface, and is formed in a wall shape downward so as to improve the airtightness of the suction chamber 18 and improve the dust collecting property near the wall. A protruding seal lip 41 is formed.

On the other hand, an electric motor 43 as driving means for rotating the rotary cleaning body 30 is arranged in the electric motor room 20.
Then, a power transmission belt 44 is provided on a pulley 43a fixed to an output shaft (not shown) of an electric motor 43 as a driving means and a pulley 34 integrally formed at one end of the rotary cleaning body 30,
The output from the electric motor 43 is passed through the belt 44 so that the rotating cleaning body 30 rotates in the reverse direction to the traveling direction.

Further, the control room 21 is provided with a control means 45 for converting a detection signal from a running direction detecting means (not shown) for detecting the running direction and controlling the driving of the electric motor 43.

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

First, the assembly of the rotary cleaning body 30 will be described. The shaft 33 is projected at both ends in the longitudinal direction by insert molding, a pulley 34 is formed at one end side, and a spiral groove 31 is provided on the outer peripheral surface. Body
32 is integrally formed. When the main body 32 is released from the mold, the main body 32 is removed from the pulley 34 by the taper of the groove 31.
Release so that it is pulled out along the axial direction of. Thereafter, the blade engaging portion 36b of the blade portion 36 and the brush engaging portion 37b of the brush portion 37 are inserted from the end on the side where the pulley 34 is not provided in the groove portion 31, respectively. The main body 32 is slid along the axial direction until it comes into contact with the end face of the pulley 34, and is inserted and fixed. further,
A bearing 38 is rotatably provided on the shaft 33, and the rotary cleaning body 30 is assembled and formed.

Next, the pulley 34 of the rotary cleaning body 30 and the electric motor 43
A belt 44 for power transmission is wound around the pulley 43a, the electric motor 43 is disposed in the electric motor room 20 of the lower body case 12, and the bearing 38 of the rotary cleaning body 30 is attached to the shaft support 39 of the lower body case 12. The lower end of the rotary cleaning body 30 projects slightly downward from the suction port 22 into the suction chamber 18 to rotatably support the rotary cleaning body 30.

Then, the communication pipe 24 to which the connection pipe 26 is attached is supported by the lower main body case 12 and the upper main body case 13 is engaged with the lower main body case 12 to assemble and form the suction main body 11.

On the other hand, when performing cleaning, the suction port main body 11 is connected to a vacuum cleaner main body (not shown) via a hose and an extension pipe. Next, the hose is pushed while grasping the end on the extension pipe side of the hose, and the suction port main body 11 is caused to travel back and forth on the floor surface.

First, the traveling direction and traveling speed of the suction port main body 11 are detected by traveling direction detecting means (not shown). The detected signal is determined by the control means 45, and the electric motor 43 is driven to rotate in a predetermined direction and at a predetermined rotational speed. This electric motor 43
The rotary cleaning member 30 is rotated together with the pulley 34 via the belt 44 in the direction opposite to the traveling direction of the suction port main body 11 by the rotational driving, and the rotary cleaning member 30 efficiently scrapes dust from the floor surface.

When the rotary cleaning body 30 rotates, if the floor surface has irregularities such as a tatami mat or a carpet, the blade 36a of the blade portion 36 and the brush bristles 37a of the brush portion 37 hit the floor surface. The dust is lifted up and the dust is scraped off.

Even if lint or the like is caught on the brush part 37, the blade part 36 becomes a base and
Can be prevented from being caught on the rotating cleaning body 30, and even if it is entangled, it can be easily removed.

In this way, the dust sucked into the suction chamber 18 from the floor via the suction port 22 is removed from the air passage chamber 19 and the communication pipe 2.
4. Dust is collected in the dust collecting chamber of the vacuum cleaner main body via the connecting pipe 26, the extension pipe and the hose.

In the above embodiment, the brush engaging portion 37b of the brush portion 37 is formed of a material having a high specific gravity, and the center of gravity of the rotary cleaning member 30 to which the blade portion 36 and the brush portion 37 are attached is the same as that of the rotary cleaning member 30. Because it is located on the rotating shaft and is designed to balance the weight, the rotating cleaning body 30 can rotate smoothly without causing rotational shake, and can efficiently scrape out dust and prevent noise, Entanglement of lint can also be suppressed.

In the above embodiment, the brush locking portion 37b of the brush portion 37 has been described as being formed of a material having a high specific gravity. However, as shown in FIG.
b is made of the same material as the brush bristles 37a, which is a material having a relatively low specific gravity, and the brush locking portion 37b is formed larger than the blade locking portion 36b of the blade portion 36 to increase the weight as a whole. The same effect can be obtained even if the balance is taken. Further, the same effect can be obtained by forming the brush bristles 37a by channel forming in which the brush bristles 37a are swaged with a band-shaped metal plate without forming the brush portions 37 by flocking, so that the metal plate portions serve as the brush locking portions 37b serving as weight portions. Is obtained.

[0040] The Contact, rotary cleaning body 30 does not contact the flat floor surface, such as the blade portion 36, for example plates, for example in contact with the floor surface to elastically deform such carpet or tatami, one brush 37 The lower end of the rotary cleaning body 30 is provided so as to slightly protrude downward from the suction port 22 so as to also contact the floor surface of the rotary cleaning body 30.

With this configuration, the brush portion 37 having brush bristles 37a, which is more flexible than the blade portion 36, does not abut on the floor surface, such as in the case of a space between the plates. Because of contact, noise can be reduced.

Further, the brush locking portion 37b of the brush portion 37 has been described as a weight portion, but a weight portion is separately provided on the inner peripheral surface of the groove portion 31 without increasing the weight of the brush portion 37 as a whole.
The brush locking portion 37b is engaged and fixed in the groove portion 31, and the center of gravity of the rotary cleaning body 30 to which the blade portion 36 and the brush portion 37 are attached is located on the rotation axis of the rotary cleaning body 30, so that weight balance can be achieved. The same effect can be obtained by doing so.

In the above description, the main body 32 is provided with a pair of grooves 31, but a plurality of grooves 31 may be provided. In the case of providing a plurality of grooves 31, for example, in the case of providing four grooves 31, the same members of the blade portion 36 and the brush portion 37 are located in the diametric direction, for example, in the case of providing six grooves 31,
As shown in FIGS. 6 and 7 , different members are positioned in the diametric direction.

On the other hand, the main body 32 of the rotary cleaning body 30 has been described as being formed by insert molding, but any molding method can be used.

Further, the rotary cleaning body 30 has been described as the transmission means and rotated by the rotation of the electric motor 43 via the belt 44. However, the rotary cleaning body 30 may be driven by meshing a gear or the like.

In addition to the canister type vacuum cleaner, an upright type in which the suction port body 11 is formed directly on the lower surface of the vacuum cleaner main body, and other types in which the vacuum cleaner body and the suction port main body 11 are integrated. It can also be applied to a self-propelled vacuum cleaner and the like.

[0047]

According to the first aspect of the present invention, the suction port of the vacuum cleaner according to the first aspect is provided .
According to the rotary cleaning body , the brush engaging with the groove of the shaft member
Make the stop part heavier than the blade engaging part of the blade
Since parts was substantially the same weight and the blade portion, 0.00 weight balance between the different blade portions and the brush portion can prevent a rotational camera shake, it is possible to reduce noise due to the rotation shake and improve the cleaning efficiency.

[0048] According to the suction port of the vacuum cleaner according to the second aspect , it is possible to rotate smoothly without causing rotational shake.
In order to provide a rotary cleaning body for the suction body of the vacuum cleaner described above,
Dust can be efficiently scraped out , noise due to rotational shake can be reduced, and cleaning efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view with a part cut away showing a rotary cleaning body of an embodiment of a suction port body of a vacuum cleaner of the present invention.

FIG. 2 is a cross-sectional view showing the rotary cleaning body in the vicinity of a shallow side of a groove on a pulley side.

FIG. 3 is a cross-sectional view showing the vicinity of a side where a groove portion showing the main body portion is deep.

FIG. 4 is a partially cutaway plan view showing a suction port main body accommodating the rotary cleaning body.

FIG. 5 is a sectional view showing a rotary cleaning body according to another embodiment of the present invention.

FIG. 6 is a sectional view showing a rotary cleaning body according to still another embodiment of the present invention.

FIG. 7 is a perspective view of the same .

FIG. 8 is an exploded perspective view showing a conventional rotary cleaning body with a part cut away .

FIG. 9 shows an inlet main body for accommodating the rotary cleaning body .
It is the top view which cut out the part .

[Explanation of symbols]

11 suction port main body 15 case 22 inlet 30 rotary cleaning body 31 groove 32 body portion of the shaft member 36 the blade portion 36b blade locking portion 37 brush portion 37a bristles 37b brush engagement portion 43 motor as a driving means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-7271 (JP, A) JP-A-6-14853 (JP, A) JP-A-5-146382 (JP, A) 2414 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47L 9/04

Claims (2)

(57) [Claims] 1. A case body provided with a suction opening on a lower surface.
And is rotated by the drive of the drive means facing the suction port.
A rotary cleaning body of a suction port body of an electric vacuum cleaner , wherein the rotary cleaning body is provided with a plurality of grooves along an axial direction positioned in a diametrical direction, and is rotatable in the case body facing the suction port. A shaft member that is supported, a band-shaped blade, and the longitudinal direction of the blade.
Ru engaged with the one of the groove of the shaft member is provided on one side
And band-shaped blade portion of the flexible member having a blade engagement portion, wherein the blade locking engaged with the other groove of said shaft member
Part that is heavier than the brush
Substantially the same weight and the blade portion have a planted brush bristles
Rotary cleaning body suction port body and the brush portion, characterized by comprising an electric vacuum cleaner. 2. The electric cleaning device according to claim 1 , wherein a case body having an opening on a lower surface thereof is provided , and the case body is provided facing the suction port.
Characterized by comprising a rotary cleaning body suction port body of the machine
Suction port body of the vacuum cleaner.