JP2013146305A - Rotary brush for vacuum cleaner, mounting structure for the rotary brush, and vacuum cleaner including the mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary brush for a vacuum cleaner, which has a simple structure, is readily attached and detached, and is produced at low cost; and to provide a mounting structure for the rotary brush, and a vacuum cleaner including the mounting structure.SOLUTION: A rotary brush is rotatably supported between a pair of shaft supporting portions of a vacuum cleaner having a suction hole and the pair of shaft supporting portions provided at the suction hole, at least one of them rotatably driven. The rotary brush has a shaft portion, and a brush portion provided on the outer peripheral surface of the shaft portion. The shaft portion has both ends attachably/detachably mounted to the pair of shaft supporting portions.

Description

  The present invention relates to a rotary brush for a vacuum cleaner, a mounting structure for the rotary brush, and a vacuum cleaner including the same. More specifically, the present invention relates to a rotary brush of a vacuum cleaner in which a rotary brush is detachably attached to a suction port on a bottom surface of a housing of the vacuum cleaner, an attachment structure of the rotary brush, and a vacuum cleaner including the rotary brush.

  In a conventional cleaner provided with a cleaner body, a cleaning head having a suction port, and a hose connecting them, a rotary brush that rotates during a cleaning operation is provided at the suction port of the cleaning head.

  For example, in the conventional vacuum cleaner described in Patent Document 1, projecting shaft portions are provided at both ends of the rotating brush, and shaft support portions for supporting the shaft portions at both ends of the rotating brush are provided inside the cleaning head. It has been. A toothed pulley is provided adjacent to one shaft portion of the rotating brush, and a motor is provided inside the cleaning head. The toothed pulley at the tip of the drive shaft of the motor and the toothed pulley of the rotating brush are provided. The timing belt is stretched. According to such a rotating brush mounting structure, the rotational force of the drive shaft of the motor is transmitted to the rotating brush via the timing belt, and the rotating brush rotates.

  When the vacuum cleaner is used to some extent, hair and lint are entangled with the rotating brush, and the ability of the rotating brush to scrape dust into the suction port is reduced. Therefore, it is necessary to remove the rotating brush from the cleaning head for cleaning. Therefore, the cleaning head is designed so that the user can remove the rotating brush. In the case of the vacuum cleaner of Patent Document 1, the cleaning head is configured to be divided into an upper body and a bottom cover, and the rotating brush can be removed by removing the bottom cover from the upper body with the cleaning head turned upside down. It is like that. The upper body and the bottom cover are assembled by screwing a plurality of locations.

JP 2009-66031 A

  However, in the case of the vacuum cleaner of Patent Document 1, in order to remove the rotating brush from the cleaning head, it is necessary to remove a plurality of screws, remove the bottom cover from the upper body, and remove the timing belt from the toothed pulley of the rotating brush. . When the cleaned rotating brush is attached to the cleaning head, the reverse procedure must be performed. Therefore, the cleaning operation of the rotating brush is troublesome for the user.

  In addition, since the rotating brush is a part handled by the user, it is difficult to damage even if it is handled roughly, that is, it is desirable to have a simple structure, but a rotating brush with a toothed pulley has a structure. It is complicated and the teeth of the pulley are easily damaged. In addition, the rotating brush mounting structure having such a complicated structure also increases the cost of the vacuum cleaner.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a rotating brush with a simple structure.
Moreover, this invention provides the attachment structure which can attach or detach a rotary brush easily, and a cleaner provided with the same.
Moreover, this invention provides the rotary brush of the vacuum cleaner which can aim at cost reduction, its attachment structure, and the vacuum cleaner provided with the same.

Thus, according to the present invention, the rotary brush that is rotatably supported between the pair of shaft support portions of the vacuum cleaner having the suction port and the pair of shaft support portions provided at the suction port and at least one of which is rotationally driven. Because
There is provided a rotary brush of a vacuum cleaner having a shaft portion and a brush portion provided on an outer peripheral surface of the shaft portion, wherein both ends of the shaft portion are detachably attached to the pair of shaft support portions.

Moreover, according to another viewpoint of this invention, it is the rotary brush attachment structure of the vacuum cleaner which attaches the said rotary brush,
A housing having a suction port, a pair of shaft support portions provided at the position of the suction port of the housing, at least one of which is rotationally driven, one end of the shaft portion of the rotating brush, and one shaft corresponding to the one end A resilient member that is provided between the support portions and urges the shaft portion toward the other shaft support portion, and that supports the rotary brush detachably between the pair of shaft support portions by the resilient member. A rotating brush mounting structure of the machine is provided.

The rotary brush mounting structure of the vacuum cleaner of the present invention may be configured as follows.
(1) Each of the pair of shaft support portions has recesses into which both ends of the shaft portion of the rotating brush are fitted,
The resilient member for urging the shaft portion toward the other shaft support portion may be provided in the concave portion of the one shaft support portion.
(2) The other shaft support portion may have a notch formed in a part of the side wall constituting the recess.
(3) The resilient member may be made of a cushion material or a leaf spring.

  Further, according to another aspect of the present invention, there is provided a self-propelled self-propelled cleaner provided with the rotating brush mounting structure, or a cleaner equipped with a cleaning head provided with the rotating brush mounting structure. The

According to the rotary brush of the vacuum cleaner of the present invention, the structure can be simplified and can be manufactured at a low cost, which leads to a reduction in the cost of the vacuum cleaner.
Further, according to the rotary brush mounting structure of the vacuum cleaner of the present invention, by providing a resilient member between the recess of one of the shaft support portions and one end of the shaft portion of the rotary brush fitted into the recess of the shaft support portion. In the rotating brush attached state, the other end of the shaft portion is always urged toward the concave portion of the other shaft support portion by the elastic member, so that even if the rotating brush rotates, it does not come off. When removing the rotating brush, the other end of the shaft portion is separated from the concave portion of the other shaft support portion by pushing one end of the shaft portion toward the elastic member side, and then the other end of the shaft portion is also one shaft support portion. By removing from the recess, the rotary brush can be easily removed from between the pair of shaft support portions. Therefore, it is possible to easily perform troublesome work for the user such as removing the rotating brush from the cleaning head, performing cleaning and washing, and then attaching the rotating brush to the cleaning head.

In addition, since this rotating brush mounting structure is a simple structure, it can be manufactured at low cost, leading to cost reduction of the vacuum cleaner.
The rotating brush mounting structure of the present invention can be applied to all vacuum cleaners equipped with a rotating brush, and specifically includes a self-propelled cleaner having a self-propelled housing and a cleaning head. Applicable to vacuum cleaners.

  Further, according to the configuration (1), even if the rotating brush is removed from between the pair of shaft support portions by the user, the resilient member is provided in the concave portion of the one shaft support portion, so that it can be touched by the user. There is no. Therefore, the elastic member is not lost when the rotary brush is detached.

  Further, according to the configuration (2), when removing the rotating brush from between the pair of shaft support portions, the other end of the shaft portion can be separated from the recess through the notch of the other shaft support portion, so that the rotating brush is more It can be easily detached.

  Further, according to the configuration (3), the cost of the elastic member can be reduced, and the elastic member can be fixed to the concave portion of the shaft support portion by bonding, and thus the elastic member is fixed to the concave portion. No mechanism is required. Therefore, it is possible to reduce the cost of the rotating brush mounting structure.

It is a perspective view of the self-propelled cleaner concerning Embodiment 1 of the present invention. It is AA arrow sectional drawing of the self-propelled cleaner shown by FIG. It is a schematic bottom view of the self-propelled cleaner shown in FIG. FIG. 3 is a view corresponding to FIG. 2, showing a state where the lid of the housing is opened and the dust collecting unit is taken out. It is a block diagram which shows the electrical structure of the self-propelled cleaner shown by FIG. FIG. 4 is a view corresponding to FIG. 3 showing a state where a cover of the suction port is removed. It is a BB schematic sectional drawing of the self-propelled cleaner shown by FIG. FIG. 8 is a view corresponding to FIG. 7 illustrating a state where a cover of the suction port is removed. It is a schematic sectional drawing which shows the 1st procedure at the time of removing a rotating brush from between a pair of shaft support parts. It is a schematic sectional drawing which shows the 2nd procedure at the time of removing a rotating brush from between a pair of axial support parts. It is a perspective view which shows one axial support part and elastic member in this invention. It is a perspective view which shows the other axial support part in this invention. It is a fragmentary sectional view which shows the modification of the rotating brush in this invention. It is a perspective view which shows the modification of one axial support part and the elastic member in the rotary brush attachment structure of Embodiment 2 of this invention. It is composition explanatory drawing which shows the cleaning head provided with the rotating brush attachment structure of Embodiment 3 of this invention.

(Embodiment 1)
FIG. 1 is a perspective view of a self-propelled cleaner according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the self-propelled cleaner shown in FIG. 4 is a schematic bottom view of the self-propelled cleaner shown in FIG. 4, FIG. 4 is a view corresponding to FIG. 2 showing a state where the lid of the housing is opened and the dust collecting part is taken out, and FIG. It is a block diagram shown by the electrical structure of the self-propelled cleaner shown.
Hereinafter, the “self-propelled cleaner” may be referred to as a “cleaning robot”.

The cleaning robot (self-propelled cleaner) 1 according to the present invention sucks air containing dust on the floor and exhausts the air from which the dust is removed while self-propelled on the floor where it is installed. It is a cleaning robot that cleans the floor surface.
The cleaning robot 1 includes a disk-shaped casing 2, and a rotating brush 9, a side brush 10, a dust collection box 30, an electric blower 22, a pair of driving wheels 29, and a rear wheel 26 are provided inside and outside the casing 2. Components such as a front wheel 27 and a control unit including various sensors are provided.
In this cleaning robot 1, the portion where the front wheel 27 is disposed is the front portion, the portion where the rear wheel 26 is disposed is the rear portion, and the portion where the dust collection box 30 is disposed is the intermediate portion.

  The housing 2 opens and closes when the dust collection box 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 are provided. 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 in the front and rear directions, and the front side portion of the side plate functions as a bumper.

  Further, as shown in FIG. 4, inside the housing 2, the front of the motor unit 20, the electric blower 22 provided in the motor unit 20, the ion generator 25 (see FIG. 5), etc. It has a storage chamber R1, an intermediate storage chamber R2 for storing the dust collection box 30 in the intermediate portion, and a rear storage chamber R3 for storing the control board 15, battery 14, charging terminal 4 and the like of the control portion in the rear portion. And has a suction passage 11 and an exhaust passage 12 in the vicinity of the boundary between the front portion and the intermediate portion. 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 rotation shafts that intersect at right angles with the 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 As the drive wheel 29 advances and retreats and the drive wheels 29 rotate in the opposite direction, the housing 2 rotates around the center line C.
The pair of rotating shafts 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 arranged 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 cleaning robot 1 can be supported by the pair of driving wheels 29 and the rear wheels 26. Thus, the weight is distributed to the housing 2 in the front-rear direction. 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. A frame body 5 having a frame body 5a and a plurality of bars 5a is detachably attached to the bottom surface of the housing 2 so as to cover the suction port 6 (see FIG. 3). The frame body 5 prevents, for example, relatively long and large objects such as pencils and ballpoint pens from being sucked into the suction port 6 as garbage, thereby preventing damage to the rotating brush 9 and inflow. The clogging of the passage 34 and the suction passage 11 is prevented. Lock holes are formed at a plurality of locations around the suction port 6 of the bottom plate 2 a of the housing 2, and lock pieces that are locked to the lock holes are formed at a plurality of locations of the frame body 5 a of the frame body 5. Is provided.

  A rotating brush 9 that rotates about a first axis parallel to the bottom surface of the housing 2 is provided in the recessed portion 8, and a second rotating shaft that is perpendicular to the bottom surface of the housing 2 is provided on the left and right sides of the recessed portion 8. A side brush 10 that rotates around the center is provided. The rotating brush 9 is formed by implanting a brush in a spiral shape on the outer peripheral surface of a roller that is a rotating shaft described later in detail. 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 include a motor unit 20 provided in the vicinity thereof, a pulley, a belt, and the like. They are independently connected via a transmission mechanism. The rotating brush 9 and its mounting structure will be described later in detail.

  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 the drive wheels 29 to stop. Further, 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 cleaning robot 1 is prevented from falling to the descending stair. . 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 of the cleaning robot 1 such as the driving wheel 29, the rotating brush 9, the side brush 10, and the electric blower 22.
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 cleaning robot 1 that cleans the room while traveling by itself returns to the charging stand 40 installed in the room. 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 includes a control board 15, driving wheels 29, rotating brush 9, side brush 10, electric blower 22, other various motors not shown, various sensors, and the like. Power is supplied to each element.

The dust collection box 30 is usually stored in the intermediate storage chamber R2 above the axis of the rotation shaft of the drive wheels 29 in the housing 2, and the dust collected in the dust collection box 30 is collected. When discarding, as shown in FIG. 4, the lid 3 of the housing 2 can be opened and the dust collection box 30 can be taken in and out.
The dust collection box 30 includes a dust collection container 31 having an opening, a filter unit 33 that covers the opening of the dust collection container 31, and a cover unit 32 that covers the filter 33 and the opening of the dust collection container 31. ing. 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.
In the state where the dust collection box 30 is stored in the intermediate storage chamber R <b> 2 of the casing 2, the inflow path 34 that communicates with the suction path 11 of the casing 2 and the casing 2 are disposed at the front portion of the side wall of the dust collection container 31. An exhaust passage 35 communicating with the exhaust passage 12 is provided.

  As shown in FIG. 5, the control unit for controlling the operation of the entire cleaning robot 1 includes a control board 15 having a control circuit composed of a CPU 15a and other electronic components (not shown), and a storage unit for storing a travel map 18a. 18, a motor driver 22a for driving the electric blower 22, a motor driver 51a for driving the traveling motor 51 of the drive wheel 29, a louver 17 rotatably provided near the exhaust port 7 in the housing 2, and A control unit 17a for driving it, an odor sensor 52 and its control unit 52a, a humidity sensor 53 and its control unit 53a, a human sensor 54 and its control unit 54a, a contact sensor 55 and its control unit 55a, etc. Composed.

The CPU 15a is a central processing unit and transmits control signals individually 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.
Further, the CPU 15a accepts a condition setting related to the operation of the cleaning robot 1 by the user from an operation panel (not shown) and stores it in the storage unit 18. The storage unit 18 can store a travel map 18 a around the installation location of the cleaning robot 1. The travel map 18a is information related to travel such as the travel route and travel speed of the cleaning robot 1, and is stored in advance in the storage unit 18 by the user or automatically recorded during the cleaning operation by the cleaning robot 1 itself. Can do.

  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 cleaning robot 1, for example, the humidity sensor 53 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 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 cleaning robot 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 cleaning robot 1, for example, the human sensor 54 is disposed 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 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 cleaning robot 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 cleaning robot 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 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 collection box 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 collection box 30 flows into the front storage chamber R1 as shown 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) released by the ion generator 25. Then, as shown by an arrow A3 in FIG. 2, an airflow containing ions is exhausted obliquely upward at the rear from the exhaust port 7 provided on the upper surface of the housing 2. Thereby, cleaning on the floor surface F is performed, and indoor sterilization and deodorization are performed by ions contained in the exhaust of the cleaning robot 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, the inside of the dust collection container 31 of the dust collection box 30 and the filter unit 33 can be sterilized and deodorized.

  Further, the cleaning robot 1 turns around the center line C by rotating the left and right drive wheels 29 forward in the same direction, moving forward, moving backward in the same direction, moving backward, and rotating in opposite directions. For example, when the cleaning robot 1 reaches the periphery of the cleaning area and 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 change their directions. Thereby, the cleaning robot 1 can be self-propelled while avoiding obstacles in the entire installation place or the entire desired range.

In addition, the cleaning robot 1 is grounded at three points of the left and right drive wheels 29 and the rear wheel 26, and the weight is distributed in such a balance that the rear wheel 26 does not lift from the floor F even if it stops suddenly during forward movement. Yes. Therefore, it is prevented that the cleaning robot 1 suddenly stops in front of the descending stairs while moving forward, and thereby the cleaning robot 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 collection box 30 is disposed above the rotation shaft 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 cleaning robot 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 cleaning robot 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 release an airflow including ions from the exhaust port 7.
The cleaning robot 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.

  Moreover, the cleaning robot 1 can drive the electric blower 22 and the ion generator 25 in a state of returning to the 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, the cleaning robot 1 can also perform the ion emission operation alone.

  An operation unit is provided on the upper surface of the cleaning robot 1, and a cleaning operation and an ion emission operation can be executed 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.

<Rotating brush and its mounting structure>
6 is a view corresponding to FIG. 3 showing a state where the cover of the suction port is removed, and FIG. 7 is a schematic cross-sectional view of the self-propelled cleaner shown in FIG.
The rotating brush 9 includes a shaft portion 9a having a symmetrical structure and a brush portion 9b provided on the outer peripheral surface of the shaft portion 9a. One end 9a ₁ and the other end 9a ₂ of the shaft portion 9a are formed in a square bottomed rectangular tube shape when viewed from the axial direction. One end 9ax ₁ and the other end of the shaft portion 9ax rotating brush 9X as shown in FIG. 13 (not shown) may be solid. The brush portion 9b has at least brush hairs spirally planted on the outer peripheral surface of the shaft portion 9a. In addition to the brush hairs, a flexible blade is spirally provided on the outer peripheral surface of the shaft portion 9a. Also good. Moreover, the brush part 9b may be comprised with a flexible blade. Here, among the left and right ends of the shaft portion 9a of the rotary brush 9, shown in Figure 7-10, it refers to the right end portion and one end 9a _1, is called the left end of the other end 9a _2.

A pair of shaft support portions 61 and 62 for detachably supporting both ends 9a ₁ and 9a ₂ of the shaft portion 9a of the rotating brush 9 are provided at the position of the suction port 6 of the bottom plate 2a of the housing 2. The pair of shaft support portions 61 and 62 have recesses 61Aa ₁ and 62Aa ₁ into which both ends 9a ₁ and 9a ₂ of the shaft portion 9a are fitted. Further, one end 9a ₁ in shaft portion 9a, is provided between the recesses 61Aa ₁ of one of the shaft support 61 and one end 9a ₁ is fitted, the resilient member biasing the shaft portion 9a to the other shaft supporting 62 side J1 is provided. Here, of the pair of left and right shaft support portions shown in FIGS. 7 to 10, the right shaft support portion is referred to as one shaft support portion 61, and the left shaft support portion is referred to as the other shaft support portion 62.

More specifically, as shown in FIG. 11, one pivotal support 61 is fixed by being press-fitted into a resin-made main body 61A having a bottomed central hole on the outer end surface side and a bottomed central hole of the main body 61A. And a metal shaft portion 61B having one end.
Body portion 61A includes a cylindrical portion 61Aa having recesses 61Aa ₁ square on the inner end face when viewed from the axial direction, a toothed pulley section 61Ac provided on the outer peripheral surface of the outer end of the cylindrical portion 61Aa, a cylindrical portion 61Aa It is a component that has a flange portion 61Ab provided between the toothed pulley portion 61Ac and is integrally molded with resin. Then, Tamahatsu member J1 to the inner part bottom surface of the recess 61Aa in the _first cylindrical portion 61Aa is adhered and fixed by an adhesive.

As shown in FIG. 12, the other shaft supporting portion 62, the main body portion 62A and the shaft portion 62B and a cylindrical portion 62Aa and the flange portion 62Ab and the toothed pulley section 61Ac having recesses 62Aa ₁ square when viewed from the axial direction consists of a, the one shaft support 61 but substantially the same structure, the shaft support 61 that notch 62Aa ₂ part is formed of one side wall constituting the recessed portion 62Aa ₁ of the cylindrical portion 62Aa Different. Here, the axial length of the notch 62Aa ₂ is a depth not reaching to the inner part bottom surface of the recess 62Aa _1. The width of the circumferential notch 62Aa ₂ is the width of the extent to which the other end 9a ₂ passes through a notch 62Aa ₂ of the shaft portion 9a of the rotary brush 9, the outer peripheral four sides of the recess 62Aa ₁ bottomed prismatic One of them is formed with the same width.

Note that the other shaft portion 62 may not be provided with the toothed pulley portion 62Ac. However, from the viewpoint of cost reduction, and one of the shaft support 61 and the other shaft support 62 and a shared part, it is formed the other shaft support 62 to form a notch 62Aa ₂ on one shaft support 61 Good.
Further, in the present embodiment, for the purpose of facilitating the attachment and detachment of the rotating brush 9, the case where the other shaft portion 62 is provided with the notch 62Aa ₂ is illustrated, but the other shaft portion 62 has the notch 62Aa _2. May not be provided. In this case, by increasing the thickness of the elastic member J1 in the deformation direction and increasing the compressible deformation amount in the deformation direction (thickness direction) of the elastic member J1, one end 9a of the shaft portion 9a of the rotary brush 9 is obtained. ₁ and the other end 9a ₂ are sufficiently fitted into the recesses 61Aa ₁ and 62Aa ₁ of the _one shaft support portion 61 and the other shaft support portion 62, and the rotating brush 9 can be easily removed from between the shaft support portions 61 and 62. If it does in this way, the axial support parts 61 and 62 can be made into the completely same structure, and it can aim at the cost reduction by sharing components.

The resilient member J1 is made of a cushioning material having appropriate elasticity, and is formed to have substantially the same size as the bottom of the inner portion of the recess 61Aa1 of the _one pivotal support 61. Examples of the cushion material include a sponge sheet, a rubber sheet, and an elastomer sheet. In a state in which the rotary brush 9 is attached between the pair of shaft support portions 61 and 62, the elastic member J1 biases one end 9a ₁ of the rotary brush 9 toward the other end 9a _2. The other end 9a ₂ is always pressed against the bottom face of the recess 62Aa ₁ of the other shaft support 62.

The shaft portions 61B and 62B of the pair of shaft support portions 61 and 62 are rotatably attached to through-holes of ribs provided in the housing 2 via bearings. A worm W is fixed to the outer peripheral surface of each shaft portion 61B, 62B.
As described above, the front storage chamber R1 of the housing 2 is provided with the motor M1 for driving the rotary brush, and the motor M1 is disposed above the one shaft support portion 61. A toothed pulley m2 is fixed to the shaft m1 of the motor M1, and a timing belt m3 is stretched between the toothed pulley m2 of the motor M1 and the toothed pulley portion 61Ac of one shaft support portion 61. Accordingly, when the shaft m1 of the motor M1 is rotationally driven, one shaft support portion 61 is rotated. Since the shape of the one end 9a ₁ and the other end 9a ₂ of the rotating brush 9 and the shape of the recesses 61Aa ₁ and 62Aa ₁ of the pair of shaft support portions 61 and 62 are fitted to each other, one shaft support portion 61 rotates. As a result, the rotating brush 9 and the other shaft support 62 rotate.

In addition, a pair of side brushes 10 (see FIGS. 2 and 3) are disposed behind the shaft portions 61B and 62B of the pair of shaft support portions 61 and 62, respectively. A worm wheel that meshes with the worm W of each of the shaft portions 61B and 62B of the shaft support portions 61 and 62 is fixed. Therefore, the pair of side brushes 10 is rotated by the rotation of the pair of shaft support portions 61 and 62. Here, the worm W and the worm wheel of each of the shaft portions 61A and 62B are provided so that the pair of side brushes 10 are rotated in the opposite directions. More specifically, in FIG. 6, the worm W and the left side brush 10 rotate in the clockwise direction (forward direction) and the right side brush 10 rotates in the counterclockwise direction (reverse direction). A worm wheel is provided.
Note that the frame body 5a of the frame body 5 attached to the bottom plate 2a of the housing 2 so as to cover the suction port 6 has the recess 61Aa1 of _one shaft support portion 61 or the other shaft support portion 62 while the rotary brush 9 is rotating. also it has pressed the recess 62Aa ₁ so that the end portion of the rotary brush 9 does not come off if it becomes likely out any chance function.

When the cleaning robot 1 is used to some extent, hair, lint, etc. get entangled with the rotating brush 9 and the ability of the rotating brush 9 to scrape dust into the suction path 11 is reduced. Is required. When the rotary brush 9 is maintained, the frame 5 is removed from the suction port 6 as shown in FIG. 8, and then the rotary brush 9 is compressed so as to compress the elastic member J1 as shown in FIG. One end 9a ₁ is pushed into one shaft support 61 side (arrow direction). Then, the other end 9a ₂ of the rotating brush 9 moves away from the bottom of the inner surface of the recess 62Aa ₁ of the other shaft support portion 62 and moves to the position of the notch 62Aa ₂ , so that the rotating brush 9 is inclined as shown in FIG. to the other end 9a ₂ is disengaged from the recess 62Aa ₁ through notch 62Aa ₂ of another shaft support 62, it is then detached one end 9a ₁ of the rotary brush 9 from the recess 61Aa ₁ of one of the shaft support 61. In this way, the rotating brush 9 is removed from the housing 2. And the rotating brush 9 after a maintenance is attached to the housing | casing 2 in the reverse procedure. Thus, according to the rotating brush mounting structure of the present invention, the rotating brush 9 can be easily attached and detached without trouble.

Moreover, the structure and structure of the rotating brush 9 of the present invention are greatly simplified. In other words, the rotating brush 9 is composed of a shaft portion 9a and the brush portion 9b, one end 9a ₁ and the other end 9a ₂ of the shaft portion 9a can be a simple structure detachable from the driving portion of the cleaner body. Therefore, the cost of the rotating brush 9 is greatly reduced, the attaching / detaching operation is easy and the maintenance property is excellent, and replacement with a new rotating brush 9 can be easily performed. In addition, the cost reduction of the rotating brush 9 can greatly reduce the economic burden on users who purchase replacement parts.
Furthermore, the rotating brush 9 of the present invention is not restricted in its mounting direction. That is, the shaft portion 9a of the rotating brush 9 has a substantially symmetrical structure with respect to the middle position in the longitudinal direction, and the one end 9a ₁ and the other end 9a ₂ of the rotating brush 9 are attached to either of the pair of shaft support portions 61 and 62. May be. Therefore, maintainability (operability for attachment / detachment and replacement) of the rotating brush 9 by the user is improved.

In the first embodiment, for example, a metal or resin plate material may be bonded to the exposed surface of the elastic member J1 made of a cushion material, and thereby the pressure from the shaft portion 9a of the rotary brush 9 is platen. The elastic member J1 can be entirely received through the material. One end 9ax ₁ and the other end of the shaft portion 9ax rotating brush 9X as shown in Figure 13 described above (not shown) may be solid, thereby, Tamahatsu member end surface of one 9ax ₁ J1 can receive all over.

(Embodiment 2)
FIG. 14 is a perspective view showing a modification of one of the shaft support portions and the elastic member in the rotary brush mounting structure according to the second embodiment of the present invention.
The rotating brush mounting structure of the second embodiment is the same as that of the first embodiment except that a resilient member J2 made of a leaf spring is provided in the recess 61Aa1 of the main body 61A of _one pivotal support 61. As the leaf springs, for example, can be a commercially available metal plate spring curved in a U-shape, it is fixed by adhesive to the inner bottom face of the recess 61Aa _1.
Even in this case, the rotary brush can be easily attached and detached without trouble as in the case of the cushion material (elastic member J1) used in the first embodiment.

(Embodiment 3)
FIG. 15 is a structural explanatory view showing a cleaning head provided with a rotating brush mounting structure according to Embodiment 3 of the present invention. In FIG. 15, the same elements as those in FIGS.
The rotating brush mounting structure described in the first and second embodiments may be provided in a cleaning head H of a cleaner as shown in FIG. In the present invention, as a cleaner provided with the cleaning head H, the cleaning head is connected to the cleaner body through a hose, and the cleaner body and the cleaning head are integrated (the hose is omitted). ) Vacuum cleaner and included.

The cleaning head H includes a housing 102 having a suction port 106 (indicated by a two-dot chain line), a pair of shaft support portions 161 and 162 provided on both sides in the longitudinal direction of the suction port 106 in the housing 102, a rotary brush 9 as in the first embodiment which is detachably attached to between the pair of shaft support 161 and 162, the cushion material provided between one end 9a ₁ and one of the shaft support 161 of the rotary brush 9 The elastic member J1, the motor M2, the power transmission mechanism that connects the shaft of the motor M2 and the other shaft support 162, the power supply circuit that supplies power to the motor M2, and the suction port 106 on the bottom surface of the housing 102 And a wheeled switch 103 which is provided so as to be swingable rearward and switches the power supply circuit ON and OFF.

The housing 102 includes an upper main body and a bottom cover, which are assembled by screwing a plurality of locations or by a one-touch locking mechanism.
The wheeled switch 103 places the cleaning head H on the floor surface during the cleaning operation, and is pushed into the cleaning head H on the floor surface to switch the power circuit from the OFF state to the ON state to drive the motor M2. When the cleaning head H is moved away from the floor surface, it protrudes from the bottom surface of the cleaning head H and the power supply circuit is switched from the ON state to the OFF state to stop the driving of the motor M2.

One shaft support 161 is a cylinder with bottom, and a recess 161a of a square when viewed from the axial direction one end 9a ₁ of the rotating brush 9 is fitted, a concave peripheral groove 161b formed on the outer circumferential surface, the outer end face It has the short axis part 161c formed. The shaft support portion 161 is attached to the housing 102 so as to be rotatable around the axis of the short shaft portion 161c using the rib structure provided in the housing 102, the concave circumferential groove 161b, and the short shaft portion 161c. It has been.

The other shaft support 162 is a cylinder with bottom, and the recess 162a of the square when viewed from the axial direction other end 9a ₂ is fitted in the rotary brush 9, a concave peripheral groove 162b formed on the outer circumferential surface, the outer peripheral surface A toothed pulley 162d formed on the outer end surface and a short shaft portion 162c formed on the outer end surface. Further, the shaft support 162 has a notch 162a _{1 in} which a part of the side wall constituting the recess 162a is notched. The shaft support portion 162 is attached to the housing 102 so as to be rotatable around the axis of the short shaft portion 162c using the rib structure provided in the housing 102, the concave circumferential groove 162b, and the short shaft portion 162c. It has been. Needless to say, the rotational axes of the pair of shaft support portions 161 and 162 coincide with each other.

  The power transmission mechanism includes a toothed pulley 171 fixed to the shaft of the motor M2, and a timing belt 172 stretched between the toothed pulley 171 and the toothed pulley 162d of the shaft support 162. The rotational power of the motor M2 is transmitted to the other shaft support portion 162 through this power transmission mechanism, whereby the rotating brush 9 rotates together with the one shaft support portion 161. The attachment and detachment of the rotating part brush 9 with respect to the pair of shaft support parts 161 and 162 are the same as in the first embodiment.

  In the third embodiment, instead of the elastic member J1 and the rotating brush 9 made of a cushion material, the elastic member J2 made of a leaf spring (see FIG. 14) and the rotating brush 9X having solid ends (see FIG. 13). May be used.

1 Self-propelled vacuum cleaner (cleaning robot)
2,102 housing 6,106 inlet 9,9X rotating brush 9a, 9ax shaft portion 9a _1, 9ax ₁ shaft end 9a ₂ shaft portion of the second end 9b brush portion 61, 161 one shaft support 61Aa _1, 161a 62Aa ₁ , 162a Recess 62, 162 Other shaft support 62Aa ₂ , 162a ₁ Notch H Cleaning head J1, J2 Elastic member

Claims (7)

A rotary brush provided at the suction port and at least one of the suction ports and rotatably supported between the pair of shaft support portions of the cleaner having a pair of shaft support portions that are rotationally driven,
A rotary brush for a vacuum cleaner having a shaft portion and a brush portion provided on an outer peripheral surface of the shaft portion, wherein both ends of the shaft portion are detachably attached to the pair of shaft support portions. A rotary brush mounting structure for a vacuum cleaner to which the rotary brush according to claim 1 is mounted,
A housing having a suction port, a pair of shaft support portions provided at the position of the suction port of the housing, at least one of which is rotationally driven, one end of the shaft portion of the rotating brush, and one shaft corresponding to the one end A resilient member that is provided between the support portions and urges the shaft portion toward the other shaft support portion, and that supports the rotary brush detachably between the pair of shaft support portions by the resilient member. Rotary brush mounting structure of the machine. Each of the pair of shaft support portions has recesses into which both ends of the shaft portion of the rotating brush are fitted,
The rotary brush mounting structure for a vacuum cleaner according to claim 2, wherein the elastic member for urging the shaft portion toward the other shaft support portion is provided in the concave portion of the one shaft support portion.   The rotary brush mounting structure for a vacuum cleaner according to claim 3, wherein the other shaft support portion has a notch formed in a part of a side wall constituting the recess.   The rotary brush attachment structure for a vacuum cleaner according to any one of claims 2 to 4, wherein the elastic member is made of a cushion material or a leaf spring.   The self-propelled self-propelled cleaner provided with the rotary brush attachment structure of the vacuum cleaner as described in any one of Claims 2-5.   The vacuum cleaner which comprises the cleaning head provided with the rotary brush attachment structure of the vacuum cleaner as described in any one of Claims 2-5.