JP5894692B2 - Self-propelled vacuum cleaner - Google Patents

Description

  The present invention relates to a self-propelled cleaner, and more particularly to a structure of a suction port of the self-propelled cleaner.

  As a prior art related to this invention, when a retractable blade is provided along the edge of the suction port on the rear side with respect to the traveling direction of the self-propelled cleaner, the frictional force of the cleaning surface is small. A self-propelled cleaner that raises the blade perpendicular to the cleaning surface to improve cleaning efficiency and reduces the load on the self-propelled cleaner by defeating the blade when the frictional force of the cleaning surface is high It is known (see, for example, Patent Document 1).

  Further, as a prior art related to the present invention, a blade is provided along the edge of the suction port on the rear side with respect to the traveling direction of the self-propelled cleaner, and as it goes forward on both side edges of the suction port. 2. Description of the Related Art A self-propelled cleaner is known in which blades are provided so as to be spaced apart from each other to prevent dust from being scattered rearward and laterally (see, for example, Patent Document 2).

JP 2008-132299 A JP 2006-296684 A

Generally, a vacuum cleaner that cleans dust on the surface to be cleaned such as the floor surface sucks air while moving the suction port along the surface to be cleaned, collects the dust in the sucked air, and collects the dust. Is configured to do.
In such a vacuum cleaner, a device has been conventionally devised such that a blade is provided at the rear or side of the suction port to capture dust that has not been sucked by the suction port, thereby preventing dust scattering and improving cleaning efficiency. ing.
However, simply providing a blade behind or on the side of the suction port causes a problem that dust trapped in the blade stays without being sucked and does not necessarily improve the cleaning efficiency.

  The present invention has been made in consideration of the above-described circumstances, and provides a mouthpiece that can prevent the generation of dust that is trapped without being sucked in a trapped state, and a vacuum cleaner including the mouthpiece.

The present invention provides a pair of drive wheels provided on a bottom surface of a housing facing a surface to be cleaned, a rotating brush that scrapes dust on the surface to be cleaned, and supports the rotating brush so as to be rotatable about the shaft. A holding member detachable by the body, a suction port provided on the bottom surface of the housing and formed in the holding member for sucking in dust present on the surface to be cleaned, and a suction formed in the holding member A trapping member that is provided at the edge of the mouth and captures dust existing on the surface to be cleaned, a plurality of poles provided along the rotation direction of the rotary brush of the suction port, and dust via the suction port. A suction portion for sucking air and a dust collection portion for collecting dust in the air sucked by the suction portion, and the capture member includes a base end attached to an edge of the suction port and a surface to be cleaned. A distal end that abuts against the base end, and the distal end is more wicked than the proximal end. The self-propelled cleaning is a position on the mouth side, and the self-propelled cleaning roller rotates in the same direction as the drive wheel when self-propelled by the drive wheel from the capture member toward the rotary brush. The machine is provided.
Moreover, the self-propelled cleaner of the present invention may collect dust from between the rotating brush and the capturing member.
Furthermore, in the self-propelled cleaner according to the present invention, the capture member may have higher rigidity around the base end than around the front end.
Furthermore, as for the self-propelled cleaner of this invention, the said capture member may be attached to the edge of the said suction inlet via an attachment member.
Further, in the self-propelled cleaner of the present invention, a groove may be formed at an edge of the suction port, and the attachment member may be fitted into the groove.

  According to this invention, since the blade-shaped capturing member that captures dust existing on the surface to be cleaned is inclined so as to approach the suction port, the captured dust can be brought closer to the suction port. As a result, it becomes easy for a suction force to act on the trapped dust, and it is possible to prevent the generation of dust that is not sucked while being trapped.

It is a perspective view of a self-propelled cleaner provided with a mouthpiece concerning an embodiment of the present invention. It is AA arrow sectional drawing of the self-propelled cleaner shown by FIG. It is a perspective view of the bottom face side of the self-propelled cleaner shown in FIG. FIG. 3 is a view corresponding to FIG. 2, showing a state in which the cover of the housing is opened and the dust collector is taken out. It is a block diagram which shows the electrical structure of the self-propelled cleaner shown by FIG. It is a perspective view of the bottom plate single-piece | unit as a suction body with which it mounts | wears with the bottom face of the self-propelled cleaner shown by FIG. 1, and forms a suction inlet. It is BB arrow sectional drawing of the bottom plate shown by FIG. It is the perspective view which cut | disconnected the bottom plate shown by FIG. 6 by the BB line. It is explanatory drawing which shows the state which the suction inlet opposes the floor surface. It is explanatory drawing which shows the structure which provided the raising brush perpendicularly | vertically with respect to the floor surface as a comparison with respect to embodiment of this invention. It is explanatory drawing which shows the modification of a raising brush. It is explanatory drawing which shows the other structure of the suction mouth which concerns on embodiment of this invention.

  The suction body according to the present invention includes a suction port for sucking dust existing on the surface to be cleaned, and a blade-shaped capturing member that is provided at an edge of the suction port and captures dust existing on the surface to be cleaned. The capture member has a proximal end attached to the edge of the suction port and a distal end that comes into contact with the surface to be cleaned, and the distal end is arranged to be inclined so as to approach the suction port rather than the proximal end. To do.

  In the suction body according to the present invention, the blade-shaped capture member is not limited in specific shape and material as long as it is provided along the edge of the suction port and captures dust on the surface to be cleaned. It may be a wiper blade formed of rubber, a long strip-shaped raised cloth, or the like.

In the mouthpiece according to the present invention, the capturing member may be a raised brush. Here, the “raised brush” means one that is planted on the base so that a plurality of brush hairs stand. For this reason, the base end of the brushed brush is a base in which the brush hair is implanted.
According to such a configuration, the cleaning efficiency can be improved particularly when the surface to be cleaned is a flooring with a groove.
This is because when the capturing member is composed of a brushed brush, the brushed brush is inclined so that the tip approaches the suction port, and the tip of the brushed brush smoothly enters the groove of the flooring and collects in the groove. Dust can be captured by scooping up.

If the raised brush constituting the capturing member does not tilt as in the present invention and extends perpendicularly to the surface to be cleaned, the raised brush is used to capture the dust accumulated in the groove of the flooring. The length of the bristle must be increased. However, if the length of the bristle is increased, the friction with the surface to be cleaned increases and the smooth movement of the mouthpiece is prevented.
In addition, even if dust accumulated in the flooring groove can be captured by increasing the length of the brush hair, the brush hair that is too long bends from the root in the portion other than the groove, making it impossible to capture dust properly. There is also a fear.

  For this reason, it can be said that the said structure which a capture member consists of a raising brush is an effective structure in improving the capture efficiency of dust, ensuring the smooth movement of a suction body.

In the mouthpiece according to the present invention, the capture member is attached to the edge of the suction port via an attachment member that supports the base end, and the attachment member is configured to position the base end of the capture member so that the distal end of the capture member approaches the suction port. You may support by making it incline.
According to such a configuration, since the capture member is attached to the edge of the suction port via the attachment member, when wear or the like occurs in the capture member due to long-term use, the performance is recovered simply by replacing the capture member. Therefore, it is excellent in maintainability.
In addition, since the mounting member supports the base end of the capture member by tilting, it is not necessary to provide a special support structure at the edge of the suction port to which the mounting member is mounted, and when adopting the structure of the present invention, The surrounding structure is not complicated.

In the above-described configuration in which the capture member is attached to the edge of the suction port via the attachment member, the attachment member may include a biasing piece that biases the capture member in the direction of the suction port.
According to such a configuration, even if the tip of the capture member comes into contact with the surface to be cleaned and is warped in a direction away from the suction port due to friction with the surface to be cleaned, the biasing piece of the mounting member is It is possible to prevent the warp from returning, maintain the tip of the capture member in an appropriate position, and prevent the cleaning efficiency from being lowered.

The mouthpiece according to the present invention may further include a rotating brush that rotates around the shaft so as to scrape dust present on the surface to be cleaned, provided at the inlet.
According to such a configuration, the dust suction efficiency can be further improved by the rotating brush that rotates at the suction port.
In particular, in the present invention, since the tip of the capturing member is inclined so as to approach the suction port, the dust captured by the capturing member is close to the edge of the suction port, and is present close to the edge of the suction port. It is possible to efficiently scrape dust so as to be sandwiched between the rotating brushes.

  From another viewpoint, the present invention is connected to the above-described suction body according to the present invention, sucks air containing dust through the suction port, and captures dust in the air sucked by the suction part. The present invention also provides a vacuum cleaner provided with a dust collecting unit.

  Hereinafter, a self-propelled cleaner provided with a suction mouth concerning an embodiment of the present invention is explained in detail based on a drawing.

[Description of self-propelled vacuum cleaner]
FIG. 1 is a perspective view of a self-propelled cleaner provided with a mouthpiece according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the self-propelled cleaner shown in FIG. FIG. 4 is a perspective view of the bottom side of the self-propelled cleaner shown in FIG. 1, FIG. 4 is a view corresponding to FIG. 2 showing a state in which the lid of the housing is opened and the dust collector is taken out, and FIG. It is a block diagram which shows the electrical structure of a self-propelled cleaner.

As shown in FIGS. 1 to 3, the self-propelled cleaner 1 according to the embodiment of the present invention performs dust on the floor surface F while traveling on the floor surface (surface to be cleaned) F at the place where the self-propelled cleaner 1 is installed. The floor surface is cleaned by sucking air containing air and exhausting the air from which dust is removed.
The self-propelled cleaner 1 includes a disk-shaped housing 2, and a rotating brush 9, a side brush 10, a dust collector (dust collector) 30, an electric blower (suction unit) inside and outside the housing 2. ) 22, a pair of driving wheels 29, a rear wheel 26 and a front wheel 27, and components such as a control unit including various sensors are provided.
In the self-propelled cleaner 1, a portion where the front wheel 27 is disposed is a front portion, a portion where the rear wheel 26 is disposed is a rear portion, and a portion where the dust collecting device 30 is disposed is an intermediate portion.

  The housing 2 opens and closes when the dust collector 30 is taken in and out of the housing 2 and the bottom plate 2a having a suction port 6 formed at a position near the boundary with the intermediate portion in the front portion. A top plate 2b having a lid portion 3 at an intermediate portion, and a bottom plate 2a and a side plate 2c having an annular shape in plan view provided along the outer periphery of the top plate 2b. The bottom plate 2a is formed with a plurality of holes for projecting the lower portions of the front wheel 27, the pair of drive wheels 29 and the rear wheel 26 from the inside of the housing 2 to the outside, and the boundary between the front portion and the middle portion of the top plate 2b. An exhaust port 7 is formed in the vicinity. In addition, the side plate 2c is divided into two parts in the front-rear direction, and the side front part is provided to be displaceable so as to function as a bumper.

  Further, as shown in FIG. 4, the housing 2 has a front storage chamber R <b> 1 that stores the motor unit 20, the electric blower 22, the ion generator 25 (see FIG. 5), and the like in the front portion. It has an intermediate storage room R2 for storing the dust collecting device 30 in the part, and a rear storage room R3 for storing the control board 15, the battery 14, the charging terminal 4 and the like of the control part in the rear part, and the front part and the intermediate part. A suction passage 11 and an exhaust passage 12 are provided in the vicinity of the boundary. The suction path 11 communicates the suction port 6 and the intermediate storage chamber R2, and the exhaust path 12 communicates the intermediate storage chamber R2 and the front storage chamber R1. Each of the storage chambers R1, R2, R3, the suction path 11 and the exhaust path 12 is partitioned by a partition wall 39 provided inside the housing 2 and constituting these spaces.

The pair of drive wheels 29 are fixed to a pair of rotating shafts 29a that intersect at right angles with a center line C passing through the center of the case 2 that is circular in plan view. When the pair of drive wheels 29 rotate in the same direction, the case 2 When the drive wheel 29 advances and retreats and each drive wheel 29 rotates in the opposite direction, the housing 2 rotates around the center line C.
The pair of rotating shafts 29a are coupled so that rotational force can be obtained individually from a pair of motors (not shown), and each motor is fixed to the bottom plate 2a of the housing directly or via a suspension mechanism.

The front wheel 27 is made of a roller, contacts the step appearing on the path, and the bottom of the bottom plate 2a of the housing 2 so that the drive wheel 29 is slightly lifted from the floor F where the driving wheel 29 contacts the ground so that the housing 2 can easily get over the step. The part is rotatably provided.
The rear wheel 26 is a free wheel, and is rotatably provided on a part of the bottom plate 2a of the housing 2 so as to be in contact with the floor surface F to which the driving wheel 29 is grounded.
In this way, the pair of driving wheels 29 is disposed in the middle in the front-rear direction with respect to the housing 2, the front wheels 27 are lifted from the floor surface F, and the weight of the self-propelled cleaner 1 is set to the pair of driving wheels 29 and the rear wheels 26. The weight is distributed in the front-rear direction with respect to the housing 2 so that it can be supported. Thereby, the dust in front of the course can be guided to the suction port 6 without being blocked by the front wheel 27.

The suction port 6 is an open surface of the concave portion 8 formed on the bottom surface of the housing 2 (the lower surface of the bottom plate 2a) so as to face the floor surface F. As will be described later, in the present embodiment, the concave portion 8 serves as a suction body. When the bottom plate 60 (see FIG. 6) is fitted, the suction port 6 is formed. A rotating brush 9 that rotates about an axis parallel to the bottom surface of the housing 2 is provided in the recess 8, and a side brush 10 that rotates about a vertical rotating axis is provided on the left and right sides of the recess 8. ing.
The rotating brush 9 is formed by implanting a brush 9a spirally on the outer peripheral surface of a roller which is a rotating shaft. The side brush 10 is formed by providing a brush bundle radially at the lower end of the rotating shaft. The rotating shaft of the rotating brush 9 and the rotating shaft of the pair of side brushes 10 are pivotally attached to a part of the bottom plate 2a of the housing 2, and a drive motor provided in the vicinity thereof, the drive motor and pulley, It is connected via a power transmission mechanism including a belt and the like.
Further, a brushed brush 65 as a blade-shaped capturing member for capturing dust that has not been sucked through the suction port 6 and preventing dust from being scattered is provided at the rear edge of the suction port 6. The bottom plate 60 and the raised brush 65 forming the suction port 6 will be described in detail later.

  As shown in FIG. 3, a floor surface detection sensor 13 for detecting the floor surface F is disposed between the bottom surface of the housing 2 and the front wheel 27, and a similar floor is disposed in front of the side portions of the left and right drive wheels 29. A surface detection sensor 19 is arranged. When the downstairs are detected by the floor surface detection sensor 13, the detection signal is transmitted to the control unit, and the control unit controls both the drive wheels 29 to stop. In addition, when the floor detection sensor 13 breaks down, the floor detection sensor 19 can detect the descending stair and stop both driving wheels 29, so that the self-propelled cleaner 1 is prevented from falling to the descending stair. Has been. Further, when the floor surface detection sensor 19 detects the descending staircase, the detection signal may be transmitted to the control unit, and the control unit may control the drive wheel 29 to travel avoiding the descending staircase.

The control board 15 is provided with a control circuit that controls each element such as the drive wheel 29, the rotating brush 9, the side brush 10, and the electric blower 22 in the self-propelled cleaner 1.
A charging terminal 4 for charging the battery 14 is provided at the rear end of the side plate 2 c of the housing 2. The self-propelled cleaner 1 that cleans the room while self-propelled returns to the charging stand 40 installed indoors. Thereby, the charging terminal 4 contacts the terminal part 41 provided in the charging stand 40, and the battery 14 is charged. The charging stand 40 connected to a commercial power source (outlet) is usually installed along the side wall S in the room.
The battery 14 is charged from the charging stand 40 via the charging terminal 4 and supplies power to each element such as the control board 15, the drive wheel 29, the rotating brush 9, the side brush 10, the electric blower 22, and various sensors.

The dust collector 30 is normally stored in the intermediate storage chamber R2 above the axis of the rotation shaft 29a of the drive wheels 29 in the housing 2, and the dust collected in the dust collector 30 is collected. When discarding the dust collector, as shown in FIG. 4, the lid 3 of the housing 2 can be opened and the dust collector 30 can be taken in and out.
The dust collector 30 includes a dust collection container 31 having an opening 31 d, a filter unit 33 that covers the opening 31 d of the dust collection container 31, and a cover unit 32 that covers the filter unit 33 and the opening 31 d of the dust collection container 31. And. The cover part 32 and the filter part 33 are pivotally supported by the opening edge of the front side of the dust collecting container 31 so that rotation is possible.
An inflow path 34 communicating with the suction path 11 of the housing 2 and the housing 2 in a state where the dust collecting device 30 is housed in the intermediate storage chamber R2 of the housing 2 are disposed at the front portion of the side wall of the dust collecting container 31. An exhaust passage 35 communicating with the exhaust passage 12 is provided.

  As shown in FIG. 5, the control unit that controls the operation of the entire self-propelled cleaner 1 includes a control board 15 (see FIG. 2) having a control circuit composed of a CPU 15 a and other electronic components (not shown), A storage unit 18 that stores a travel map 18a, a motor driver 22a for driving the electric blower 22, a motor driver 51a for driving the travel motor 51 of the drive wheels 29, and a rotation near the exhaust port 7 in the housing 2. Possible louver 17 and control unit 17a for driving it, odor sensor 52 and its control unit 52a, humidity sensor 53 and its control unit 53a, human sensor 54 and its control unit 54a, contact sensor 55 and The control unit 55a is provided.

The CPU 15a is a central processing unit, and individually transmits control signals to the motor drivers 22a and 51a and the control unit 17a based on the program data stored in advance in the storage unit 18, and the electric blower 22, the traveling motor 51, and the louver. 17 is driven and controlled, and a series of cleaning operation and ion emission operation are performed.
In addition, the CPU 15a accepts a condition setting relating to the operation of the self-propelled cleaner 1 by the user from an operation panel (not shown) and causes the storage unit 18 to store it. The storage unit 18 can store a travel map 18 a around the installation location of the self-propelled cleaner 1. The travel map 18a is information relating to travel such as the travel route and travel speed of the self-propelled cleaner 1, and is stored in the storage unit 18 by the user in advance or during the cleaning operation of the self-propelled cleaner 1 itself. Can be recorded automatically.

  The odor sensor 52 detects odor around the outside of the housing 2. As the odor sensor 52, for example, a semiconductor type or catalytic combustion type odor sensor can be used. In order to detect the odor around the outside of the cleaning robot 1, for example, the odor sensor 52 is arranged in a state of being exposed to the outside from the side plate 2c or the top plate 2b of the housing 2. The CPU 15a is connected to the odor sensor 52 via the control unit 52a, and obtains odor information around the outside of the housing 2 based on an output signal from the odor sensor 52.

  The humidity sensor 53 detects the humidity around the outside of the housing 2. As the humidity sensor 53, for example, a capacitance type or electric resistance type humidity sensor using a polymer moisture sensitive material can be used. In order to detect the relative humidity around the outside of the self-propelled cleaner 1, for example, the humidity sensor 53 is disposed in a state exposed from the side plate 2c or the top plate 2b of the housing 2 to the outside. The CPU 15a is connected to the humidity sensor 53 via the control unit 53a, and obtains humidity information around the outside of the housing 2 based on an output signal from the humidity sensor 53.

  In the travel map 18a, a location where an odor above a predetermined threshold at a location where the self-propelled cleaner 1 is installed and a location where the humidity is higher than the predetermined threshold may be stored in advance as specific locations. In this way, the CPU 15a can determine that this specific location is a location determined based on the surrounding environment of the housing 2. That is, like the odor sensor 52 and the humidity sensor 53, the travel map 18a serves as an environment detection device that detects the surrounding environment of the housing 2.

  As the human sensor 54, for example, a human sensor that detects the presence of a person using infrared rays, ultrasonic waves, visible light, or the like can be used. In order to detect the presence of a person around the outside of the self-propelled cleaner 1, for example, the human sensor 54 is disposed in a state exposed from the side plate 2c or the top plate 2b of the housing 2 to the outside. The CPU 15a is connected to the human sensor 54 through the control unit 54a, and obtains presence information of people around the outside of the housing 2 based on an output signal from the human sensor 54.

  The contact sensor 55 is disposed, for example, at the front portion of the side plate 2c of the housing 2 in order to detect that the self-propelled cleaner 1 has come into contact with an obstacle during traveling. The CPU 15a is connected to the contact sensor 55 via the control unit 55a, and obtains presence information of obstacles around the outside of the housing 2 based on an output signal from the contact sensor 55.

  In the self-propelled cleaner 1 configured as described above, the electric blower 22, the ion generator 25, the drive wheel 29, the rotating brush 9, and the side brush 10 are driven by a cleaning operation command as necessary. As a result, in a state where the rotary brush 9, the side brush 10, the drive wheel 29 and the rear wheel 26 are in contact with the floor surface F, the casing 2 self-propells within a predetermined range and removes dust on the floor surface F from the suction port 6. Inhale air containing. At this time, the dust on the floor surface F is scraped up by the rotation of the rotating brush 9 and guided to the suction port 6. Further, the dust on the side of the suction port 6 is guided to the suction port 6 by the rotation of the side brush 10.

  Air containing dust sucked into the housing 2 from the suction port 6 passes through the suction passage 11 of the housing 2 and the inflow passage 34 of the dust collector 30 as indicated by an arrow A1 in FIG. It flows into the dust collecting container 31. The airflow that has flowed into the dust collecting container 31 passes through the filter portion 33, flows into the space 50 between the filter portion 33 and the cover portion 32, and is discharged to the exhaust passage 12 of the housing 2 through the discharge passage 35. Is done. At this time, the dust contained in the airflow in the dust collecting container 31 is captured by the filter unit 33, so that the dust accumulates in the dust collecting container 31.

The airflow flowing into the exhaust passage 12 of the housing 2 from the dust collector 30 flows into the front storage chamber R1 as indicated by the arrow A2 in FIG. 2, and flows through the first exhaust passage and the second exhaust passage (not shown). . The airflow flowing through the first exhaust path includes ions (plasma cluster ions (registered trademark)) generated by the ion generator 25 when the ion generator 25 is driven as described above. It is. At the same time, clean air removed from the filter 33 is released obliquely upward and rearward from the exhaust port 7 provided on the upper surface of the housing 2 as indicated by an arrow A3 in FIG. Ions are exhausted by driving the generator 25. Thereby, cleaning on the floor surface F is performed, and indoor sterilization and deodorization are performed by ions contained in the exhaust of the self-propelled cleaner 1. At this time, exhaust is performed obliquely upward from the exhaust port 7 to the rear, so that the dust on the floor surface F is prevented from being rolled up, and the cleanliness of the room can be improved.
Although not shown, a part of the airflow flowing through the first exhaust path may be guided to the recess 8. In this way, since ions are included in the airflow guided from the suction port 6 to the suction path 11, sterilization and deodorization of the dust collection container 31 of the dust collector 30 and the filter unit 33 can be performed. In addition, the suctioned dust can be neutralized and electrostatic adsorption on the inner surface of the dust collecting container 31 can be suppressed.

  Further, the self-propelled cleaner 1 has the left and right drive wheels 29 forwardly rotated in the same direction and moved forward, moved backward in the same direction and moved backward, and rotated in the opposite directions, thereby centering on the center line C. Turn. For example, when the self-propelled cleaner 1 reaches the periphery of the cleaning area or collides with an obstacle on the course, the driving wheel 29 stops and the left and right driving wheels 29 rotate in opposite directions to each other. change. Thereby, the self-propelled cleaner 1 can be self-propelled while avoiding obstacles in the entire installation place or the entire desired range.

In addition, the self-propelled cleaner 1 is grounded at three points, the left and right drive wheels 29 and the rear wheel 26, so that the weight of the self-propelled cleaner 1 is balanced so that the rear wheel 26 does not lift from the floor F even if it suddenly stops during forward movement Allocated. Therefore, it is prevented that the self-propelled cleaner 1 stops suddenly before the descending stairs while moving forward, and the self-propelled cleaner 1 is tilted forward and falls to the descending stairs. The drive wheels 29 are formed by fitting rubber tires having grooves into the wheels so that they do not slip even when suddenly stopped.
Further, since the dust collector 30 is disposed above the rotation shaft 29a of the drive wheel 29, the weight balance of the cleaning robot 1 is maintained even if the weight increases due to dust collection.

The self-propelled cleaner 1 can execute a unique operation based on information obtained from the odor sensor 52, the humidity sensor 53, the travel map 18a, and the human sensor 54 which are environment detection devices. For example, the self-propelled cleaner 1 can stay for a certain period of time at a specific location determined based on the surrounding environment detected by the environment detection device, and can also release an air stream containing ions from the exhaust port 7.
The self-propelled cleaner 1 returns to the charging stand 40 when cleaning is completed. Thereby, the charging terminal 4 contacts the terminal part 41 and the battery 14 is charged.

  Self-propelled cleaner 1 can drive electric blower 22 and ion generator 25 in the state where it returned to charging stand 40. As a result, an airflow containing ions is released obliquely upward from the exhaust port 7, and the airflow containing ions rises along the side wall S and circulates along the indoor ceiling wall and the opposite side wall. As a result, ions spread throughout the room, and the sterilization effect and deodorization effect can be improved. Thus, self-propelled cleaner 1 can also perform ion discharge operation alone. That is, the self-propelled cleaner 1 functions as an ion generator.

  An operation unit is provided on the upper surface of the self-propelled cleaner 1, and a cleaning operation and an ion emission operation can be performed by the operation unit. In addition, a receiving unit may be provided in the housing 2 and a transmitter that transmits a command signal to the receiving unit may be provided so that the remote controller can be operated. In addition, a command signal may be transmitted to the cleaning robot 1 from a mobile phone called a smartphone via an Internet line and a router provided in the room so that it can be remotely operated.

[Description of bottom plate (mouthpiece) and raised brush (capture member)]
6 is a perspective view of a bottom plate alone as a suction body that is attached to the bottom surface of the self-propelled cleaner shown in FIG. 1 and forms a suction port, and FIG. 7 is a view of the bottom plate shown in FIG. 8 is a perspective view of the bottom plate cut along line BB in FIG.

As shown in FIGS. 2 and 3, the suction port 6 formed on the bottom surface of the housing 2 of the self-propelled cleaner 1 has a bottom plate 60 serving as a suction body fitted in the recess 8 of the bottom plate 2 a. It is formed by.
As shown in FIG. 6, the bottom plate 60 is formed with semicircular receiving portions 61 on both sides for supporting the rotating brush 9 (see FIG. 3) provided in the recess 8 so as to be capable of axial rotation. Further, the bottom plate 60 has an engaging portion 62 that can be elastically deformed on the rear side, and elastically deforms the engaging portion 62 as necessary to release the engagement with the bottom plate 2a (see FIG. 3). It is comprised so that it can remove from the baseplate 2a. Further, a plurality of locking pieces 64 are provided on the front side of the bottom plate 60 so as to project the bottom plate 60 into the recess 8. Although not shown, the bottom plate 2a has a recess for inserting and locking the locking piece 64 with respect to the locking piece 64. Therefore, the bottom plate 60 is held in a state of being fitted into the bottom plate 2a by inserting the locking piece 64 into the recess and engaging the bottom plate 2a with the engaging portion 62. On the contrary, if the engaging part 62 is elastically deformed and the engagement with the bottom plate 2a is released, the bottom plate 60 can be detached from the bottom plate 2a by pulling the locking piece 64 from the bottom plate 2a. Therefore, the bottom plate 60 is detachably provided.

Also, as shown in FIGS. 6 to 8, the bottom plate 60 sucks a relatively large foreign object such as a writing instrument and prevents the driving parts such as the rotating brush 9 (see FIG. 3) from being damaged. A plurality of metal poles 63 are provided in the front-rear direction of 6 at an appropriate interval.
Since the pole 63 is provided in the front-rear direction of the suction port 6, the brush 9 a (see FIG. 3) implanted in the rotary brush 9 can smoothly pass through the pole 63, and the pole 63 rotates the rotary brush 9. Will not interfere.

A strip-like raised brush 65 is provided at the rear edge of the suction port 6 as a blade-shaped capturing member for capturing dust that has not been sucked by the suction port 6. In the present embodiment, a strip-like raised brush 65 that forms a blade-like capture member is attached along the rear edge of the suction port 6 via an attachment member 66.
The brushed brush 65 has a structure in which a large number of brush hairs 65b are implanted in a brushed base 65a serving as a base end.

The attachment member 66 has a holding surface 66a that holds the raising base 65a of the raising brush 65 in an inclined manner so that the tip 65c of the raising brush 65 is closer to the suction port 6 than the raising base 65a that is the base end of the raising brush 65. Have.
That is, the holding surface 66a of the mounting member 66 is inclined with respect to the floor surface (surface to be cleaned) F (see FIG. 9) so that the tip 65c of the raised brush 65 approaches the suction port 6.
Further, the mounting member 66 has a biasing piece 66b that biases the brush bristles 65b of the brushed brush 65 in the direction of the suction port 6, and when the tip 65c of the brushed brush 65 comes into contact with the floor surface F, The raised brush 65 is prevented from warping due to friction with the floor surface F.

The attachment member 66 that holds the raised brush 65 in an inclined manner is fitted into a concave groove 67 formed along the rear edge of the suction port 6, whereby the raised brush 65 as a capturing member is located behind the suction port 6. It is attached along the edge.
Thus, in this embodiment, since the raising brush 65 is attached via the attachment member 66, even if the raising brush 65 is worn out by long-term use and needs to be replaced, the attachment member is removed from the bottom plate 60. 66 can be removed and replaced with a new raised brush 65.

That is, according to this embodiment, it is possible to eliminate waste such as replacing the entire bottom plate 60 in order to replace the raised brush 65 with a new one, and the maintenance performance is excellent.
Further, since the holding surface 66a for inclining and attaching the raised brush 65 to the attachment member 66 side is formed, the bottom plate 60 to which the attachment member 66 is attached can adopt a conventional structure, and the raised brush 65 The structure is not complicated because it is inclined.
Furthermore, since the raised brush 65 can be removed from the attachment member 66, the raised brush 65 including the raised base 65a into which the brush bristles 65b are implanted can be replaced without replacing the attachment brush 66 and the attachment member 66. Therefore, it is rich in economy.

FIG. 9 is an explanatory view showing a state in which the suction port faces the floor surface. As shown in FIG. 9, the raised brush 65 as the capturing member is inclined so that the tip 65c is closer to the suction port 6 than the raised base 65a serving as the base end. Can be approached.
As a result, the suction force generated by the electric blower (suction unit) 22 (see FIG. 2) is likely to act on the dust D captured by the raised brush 65, and the captured dust D is caused by the rotation of the rotary brush 9. A suction effect is also added and the air is sucked in from the suction port 6 efficiently. In particular, dust can be scraped in such a manner as to be sandwiched between the rotating brush 9 and the raised brush 65.
In this case, even if it is a self-propelled cleaner with a rechargeable battery that does not have a strong suction force as in the embodiment of the present invention, suction can be performed.
In addition, when the floor surface F is a flooring having a groove, the tip 65c of the brushed brush 65 attached to be inclined toward the traveling direction smoothly enters the groove of the flooring and scoops up the dust D accumulated in the groove. And can be captured efficiently.

FIG. 10 is an explanatory diagram showing a configuration in which a brushed brush is provided perpendicular to the floor surface as a comparison with the embodiment of the present invention.
As shown in FIG. 10, when the raised brush 265 is provided perpendicular to the floor surface F, dust D is captured at a location farther from the suction port 206 than in the present embodiment of the present invention shown in FIG. 9. It will be. In this case, it becomes difficult for a suction force to act on the trapped dust D, and the dust D that is not sucked in while being trapped by the raised brush 265 stays.
Further, when the length of the brush bristles 265b of the raised brush 265 is increased so that dust D collected in the flooring groove can be captured, even if the dust D collected in the flooring groove can be captured, The brush hair 265b that is too long is bent from the root, which not only increases the running load, but also prevents the dust D from being properly captured.

  In such a situation, the length of the brush bristles 265b of the raised brush 265 is suppressed to an appropriate length, the brush bristles of the rotary brush 209 are lengthened in order to capture the dust D, and the rotation axis of the rotary brush 209 is adjusted. It is also conceivable to approach the rear edge side of the suction port 206. However, if the brush bristles of the rotating brush 209 are lengthened, the friction with the floor surface F becomes excessive and the traveling load increases. Further, when the rotating shaft of the rotating brush 209 is brought closer to the rear edge side of the suction port 206, the brush bristles of the rotating brush 209 come into contact with the edge of the suction port 206 and not only prevent the rotating brush 209 from rotating smoothly but also dust D. It also has an adverse effect on inhalation. This is because a certain gap is required between the edge of the suction port 206 and the rotating brush 209 in order to suck the dust D, and the dust D cannot be sucked if this gap is eliminated.

For this reason, the dust D captured by the raised brush 265 cannot be sucked simply by lengthening the brush bristles of the rotating brush 209 or simply bringing the rotating shaft of the rotating brush 209 closer to the rear edge side of the suction port 206. It will not be a solution.
On the other hand, the above-described raised brush 65 according to the embodiment of the present invention solves the complicated problem in the trade-off relationship as described above by a very simple method, and is extremely effective in improving the cleaning efficiency. Is.

[Modified example of brushed brush]
FIG. 11 is a view corresponding to FIG. 7 showing a modified example of the raised brush.
As shown in FIG. 11, the brushed brush 165 according to the modified example firmly supports the root of the brush hair 165e on the front side by implanting brush hair 165d having high rigidity and short length on the rear side. The brush hair 165e on the front side, which is responsible for capturing dust, is prevented from being bent by friction with the floor surface F (see FIG. 2).
According to the raised brush 165 according to the modified example, the front brush bristles 165e responsible for dust collection are prevented from being bent, so that not only the dust capture efficiency can be further improved, but also the front brush bristles 165e It becomes easy to employ flexible bristle that hardly damages the floor surface F.
The short bristles 165d are shown to be shorter than the front bristles 165e, but may be slightly shorter than the bristles 165e and may have substantially the same length.

  In the above, the suction body which concerns on embodiment of this invention was demonstrated to the self-propelled cleaner as an example. The mouthpiece according to the present invention is not limited to a self-propelled cleaner, but can be suitably used for a normal cleaner or a portable cleaner in which the user moves the inlet. For normal manual vacuum cleaners that are not self-propelled cleaners, the vacuum cleaner body is provided with an electric blower that is a suction section for sucking air, and a dust collection section that collects the sucked dust. The present invention can also be applied to a structure in which a suction body that is a suction tool that forms a suction port as described above is connected via an extension pipe or the like.

As shown in FIG. 12, the suction body 100 includes a detachable extension tube that is detachably provided with a vacuum cleaner main body (not shown), and corresponds to the suction port 6 described above. A rotating brush 109 having the same configuration as that of the rotating brush 9 is provided at 106. The suction body 100 is provided with a raised brush 105 as a capturing member as described above at the edge that hits the rear portion of the suction opening 106, and its tip is extended near the suction opening 106, that is, the rotating brush 109. It is inclined. The mounting structure of the brushed brush 105 is as described above and will not be described.
In addition, it can also comprise so that the bottom plate 60 provided with the raising brush 65 which is the capture member of the structure demonstrated in FIG. 6 corresponding to the suction inlet 106 of the suction mouth 100 shown in FIG.

As described above, the suction body according to the present invention is inclined such that the suction port provided at least corresponding to the surface to be cleaned, the capture member at the rear edge of the suction port, and the front end of the capture member approach the suction port side. It is to provide. The self-propelled cleaner 1 shown in FIGS. 1 to 3 is provided such that a bottom plate 60 as a suction body is detachable with respect to a recess 8 in which a rotating brush 9 is provided, and a raised brush 65 as a capturing member is provided on the bottom plate 60. Is provided. The mouthpiece 100 shown in FIG. 12 is detachably provided on the extension pipe of the cleaner body including the rotating brush 109.
Moreover, although the raising brush was demonstrated to the example as a capturing member, the capturing member of this invention is not limited to a raising brush, The thing of various forms, such as a raising cloth and a rubber blade, can be employ | adopted suitably.

DESCRIPTION OF SYMBOLS 1 Self-propelled cleaner 2 Case 2a Bottom plate 6,106,206 Suction port 9,109,209 Rotating brush 9a Brush 22 Electric blower (suction part)
40 Dust collector (dust collector)
60 Bottom plate (suction body)
61 receiving portion 62 engaging portion 63 pole 64 locking piece 65, 105, 165, 265 brushed brush 65a brushed base 65b, 165d, 165e, 265b brush hair 65c tip 66 mounting member 66a holding surface 66b biasing piece 67 concave groove 100 Mouthpiece F Floor surface (surface to be cleaned)

Claims (5)

A pair of drive wheels provided on the bottom surface of the housing facing the surface to be cleaned;
A rotating brush that scrapes dust on the surface to be cleaned;
A holding member that supports the rotating brush so that the shaft can rotate and is removable by the housing;
A suction port wherein provided on a bottom surface of the housing and formed on the holding member for sucking Chiri挨present in the surface to be cleaned,
A capturing member that is provided at an edge of the suction port formed in the holding member and captures dust present on the surface to be cleaned;
A plurality of poles provided along the rotation direction of the rotary brush of the suction port;
A suction part for sucking air containing dust through the suction port;
A dust collecting part for collecting dust in the air sucked by the suction part;
The capture member has a proximal end attached to the edge of the suction port and a distal end that contacts the surface to be cleaned, and the distal end is a position closer to the suction port than the proximal end,
The self-propelled cleaner, wherein the rotating brush rotates in the same direction as the driving wheel when the driving wheel self-travels in the direction of the rotating brush from the capturing member.   The self-propelled cleaner according to claim 1, wherein the self-propelled cleaner collects dust from between the rotating brush and the capturing member.   3. The self-propelled cleaner according to claim 1, wherein the capture member has higher rigidity around the proximal end than around the distal end. 4.   The self-propelled cleaner according to any one of claims 1 to 3, wherein the capture member is attached to an edge of the suction port via an attachment member. A groove is formed at the edge of the suction port,
The self-propelled cleaner according to claim 4, wherein the attachment member is fitted into the groove.

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