JP7411398B2 - Rotating brush cleaning mechanism, suction body and vacuum cleaner equipped with it - Google Patents

Description

The present invention relates to a rotating brush cleaning mechanism, a suction port body equipped with the same, and a vacuum cleaner.

Patent Documents 1 to 3 describe a suction port body for a conventional vacuum cleaner that comes into contact with a rotating rotating brush and removes dust and fibrous dust (hair, lint, etc.) attached to the rotating brush for cleaning. A suction port body provided with a member has been proposed.

Japanese Patent Application Publication No. 5-103739 Japanese Patent Application Publication No. 5-103740 Japanese Patent Application Publication No. 6-86743

In the case of Patent Document 1, when cleaning the rotating brush, the user is required to move the knob forward so that the contact member (contactor) comes into contact with the rotating brush. Therefore, the user may forget to operate the knob after cleaning the room, and the rotating brush may not be cleaned. Additionally, the user has to bend down to operate the knob on the suction port, which puts a strain on the user's legs and back.
In the case of Patent Document 2 as well, when cleaning the rotating brush, the user needs to move the brush cleaning lever forward so that the contact member (rod-shaped contact body) comes into contact with the rotating brush. There is a similar problem.

In the case of Patent Document 3, by providing a contact member (comb) close to the rotating brush, the contact member always comes into contact with the rotating brush while the rotating brush is rotating. Therefore, when the rotating brush is rotated by the rotating brush motor, the load on the rotating brush motor increases. Furthermore, when the rotating brush is rotated by a turbine that is rotated by airflow, the rotating force of the rotating brush is weaker than when driven by a motor, so the rotating force of the rotating brush is further reduced due to frictional resistance with the contact member.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cleaning mechanism for a rotating brush, a suction port body equipped with the cleaning mechanism, and a stand for a vacuum cleaner.

According to the present invention, the vacuum cleaner includes a comb portion that can come into contact with a rotating brush rotatably provided at the suction port of the suction port body,
The comb part is provided on a movable part inside the suction port body and contacts the rotating brush that is rotating in conjunction with the movement of the movable part, or is provided on the outside of the suction port body and rotates in conjunction with the movement of the movable part. A rotating brush cleaning mechanism is provided that is configured to come into contact with the rotating brush therein and scrape off dust adhering to the rotating brush.
Further, according to the present invention, a suction port body and a vacuum cleaner including the cleaning mechanism are provided.

According to the present invention, maintenance of the rotating brush of the suction port body can be easily performed without bothering the user.

FIG. 1 is a perspective view of a first embodiment of a vacuum cleaner according to the present invention, viewed diagonally from the front. It is a block diagram explaining the control system of the vacuum cleaner of a 1st embodiment. FIG. 2 is a perspective view of the suction port body of the vacuum cleaner shown in FIG. 1 as viewed diagonally from the front. FIG. 4 is a perspective view of the suction port body of FIG. 3 viewed diagonally from below. It is a left side sectional view of the suction port body of FIG. It is a flow chart of the control method of the vacuum cleaner of a 1st embodiment. It is a figure explaining the cleaning state of the suction port body of a 1st embodiment. It is a figure explaining the state where the bumper of the suction port object of a 1st embodiment collided with a wall surface. It is a figure explaining the rotating brush cleaning mode of the suction port body of 1st Embodiment. It is a bottom view of the suction port body of 2nd Embodiment. It is a figure explaining the cleaning state of the suction port body of 2nd Embodiment. It is a figure explaining the state which moves the suction port body of 2nd Embodiment to the back user side. It is a figure explaining the state where the suction port body of 2nd Embodiment was moved to the user side. It is a bottom view of the suction port body of 3rd Embodiment. It is a figure explaining the cleaning state of the suction port body of 3rd Embodiment. It is a figure explaining the state where the suction port body of 3rd Embodiment is moved to the back user side. It is a figure explaining the state where the suction port body of 3rd Embodiment was moved to the user side. It is a perspective view of the stand for vacuum cleaners of a 4th embodiment seen diagonally from the front. 19 is a diagram illustrating a state in which the suction port body is moved onto the mounting table of the stand in FIG. 18. FIG. FIG. 19 is a diagram illustrating a state in which the rotating brush is being cleaned in the comb portion of the stand in FIG. 18; It is a figure explaining the rotating brush cleaning mode of the suction port body of 4th Embodiment. It is a flowchart of the control method of the vacuum cleaner of 4th Embodiment.

A rotating brush cleaning mechanism according to the present invention is a mechanism for cleaning a rotating brush provided in a suction port body of various vacuum cleaners, and is a mechanism for cleaning a rotating brush provided in a suction port body of various vacuum cleaners. The third embodiment and the fourth embodiment described later in which a cleaning mechanism is provided outside the suction port body are illustrated.
Further, in the first to third embodiments, a case where the rotating brush cleaning mechanism according to the present invention is provided in the suction port of a stick-type vacuum cleaner is typically illustrated, but this cleaning mechanism is a handy-type vacuum cleaner. , canister type, upright type, etc. vacuum cleaners.
Further, in the first to third embodiments, the case where the rotating brush of the suction port body is motor-driven is illustrated, but this cleaning mechanism is also applicable to a suction port body having a turbine-driven rotating brush. .
DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, each embodiment of a rotating brush cleaning mechanism according to the present invention will be described in detail with reference to the drawings.

(First embodiment)
<Overall configuration of vacuum cleaner>
FIG. 1 is a perspective view of a first embodiment of a vacuum cleaner according to the present invention, viewed diagonally from the front, and FIG. 2 is a block diagram illustrating a control system of the vacuum cleaner of the first embodiment.
As shown in FIGS. 1 and 2, this vacuum cleaner 1 includes a vacuum cleaner body 10, a battery 40 that is detachably attached to the vacuum cleaner body 10, and one end that is detachably connected to the vacuum cleaner body 10. The extension tube 90 includes an extension tube 90 having a diameter 91a, and a suction port body 50 that is detachably connected to the other end 91b of the extension tube 90. Further, in the vacuum cleaner 1, the suction port body 50 can be directly connected to the vacuum cleaner main body 10 without using the extension pipe 90.
In addition, in the first embodiment, a cordless stick-type vacuum cleaner is typically illustrated, but the suction port body 50 of the present invention can also be applied to vacuum cleaners such as a handy type, a canister type, and an upright type. Applicable.

The vacuum cleaner main body 10 includes a drive device 20 as a blower unit that includes an electric blower 22, and a dust collector 30 as a dust collector that is detachably attached to the drive device 20.

The drive device 20 includes a control unit 23 and a plurality of power receiving terminals (not shown) that are provided in a mounting portion of the battery 40 and can be electrically connected to the plurality of power feeding terminals of the battery 40. is electrically connected to the control section 23 via lead wires.
Further, the drive device 20 has a handle 22 having an operation button 21 at the rear thereof, and the operation button 21 is electrically connected to a control section 23 via a lead wire.

The dust collector 30 is of a cyclone type, and includes a dust collection container 31 and a filter section 32 that is detachably attached to the dust collection container 31, and collects relatively large dust particles that have flowed into the dust collection container 31 together with air. is centrifugally separated from the air, and relatively small dust is captured by the filter section 32.

The extension tube 90 includes a tube body 91 and a plurality of conductive cables 92 provided along the tube body 61.
Further, each of the plurality of conductive cables 92 has a pin-type terminal 92a provided on one end 91a side and a clip-type terminal 92b provided on the other end 91b side.

3 is a perspective view of the suction port in the vacuum cleaner shown in FIG. 1, seen diagonally from the front, FIG. 4 is a perspective view of the suction port shown in FIG. 3, seen diagonally from below, and FIG. 5 is a perspective view of the suction port shown in FIG. It is a left side sectional view of a suction port body.
As shown in FIGS. 1 to 5, the suction port body 50 includes a suction port body 51, a joint portion 55 rotatably coupled to the suction port body 71 about an axis P1 in the front-rear direction, and a joint portion 55 that is rotatably coupled to the suction port body 71, The connecting tube part 59 is rotatably coupled to the joint part 55 about an axis P2 perpendicular to the connecting pipe part 59.

The suction port main body 51 includes a housing 52 having a suction port 52aa on a bottom portion 52a, a rotary brush 61 rotatably provided near the suction port 52aa in the housing 52, and a rotary brush for rotating the rotary brush 61. A motor 62, a motor drive circuit (not shown) electrically connected to the rotating brush motor 62, a plurality of conductive cables 63 having pin-shaped terminals 63a at their tips and electrically connected to the motor drive circuit, A rotational force transmission mechanism 64 (for example, a pulley belt mechanism) that transmits the rotational force of the brush motor 62 to the rotating brush 61 is provided.

In the state where the suction port body 50 and the extension pipe 90 are connected, the pin-shaped terminals 63a of the plurality of conductive cables 63 of the suction port body 50 are inserted into the clip-type terminals 92b of the plurality of conductive cables 92 of the extension pipe 90. electrically connected.
In addition, in the state where the extension tube 90 and the vacuum cleaner body 10 are connected, the pin-shaped terminals 92a of the plurality of conductive cables 92 of the extension tube 90 are connected to the clips of the plurality of conductive cables 26 provided in the vacuum cleaner body 10. It is inserted into the shaped terminal 26a and electrically connected. Note that when the suction port body 50 is directly connected to the cleaner main body 10 without using the extension tube 90, the pin-type terminal 63a is inserted into the clip-type terminal 26a for electrical connection.

As shown in FIG. 2, the conductive cable 26 is electrically connected to the control unit 23 (see FIG. 2). Further, the control unit 23 is electrically connected to the battery 40 via a conductive cable (not shown), and is electrically connected to the electric blower 22 via a conductive cable 25.

As shown in FIGS. 1 and 2, when the electric blower 22 of the vacuum cleaner body 10 is driven, a portion of the relatively large first dust of the dust-containing air flowing into the dust collection container 31 is collected. The dust is rotated inside the container 31 and centrifuged, and other first dust is captured by a mesh section provided in an inner cylindrical section (not shown) in the dust collection container 31 of the filter section 32 . The relatively fine second dust that has passed through the mesh section is captured by a filter body (not shown) of the filter section 32. The air from which dust has been removed by passing through the filter body passes through an electric blower 22 in the drive device 20 and is exhausted from an exhaust port (not shown).

Note that when the electric blower 22 is driven, the control unit 23 controls the rotating brush motor 62 to also drive and rotate the rotating brush 61. Further, the control unit 23 controls the rotary brush motor 62 so that the rotary brush 61 rotates in the reverse direction when the rotary brush 61 is cleaned by a cleaning mechanism 70, which will be described later. This will be described in detail later.

<About the specific structure of the suction port body>
3 is a perspective view of the suction port in the vacuum cleaner shown in FIG. 1, seen diagonally from the front, FIG. 4 is a perspective view of the suction port shown in FIG. 3, seen diagonally from below, and FIG. 5 is a perspective view of the suction port shown in FIG. It is a left side sectional view of a suction port body. In addition, in FIGS. 1, 3 to 5, arrows indicate the front, back, left, right, up and down directions as seen by the user when cleaning the floor surface with the suction port body 50 of the vacuum cleaner 1. The structure of the body 50 will be explained based on the front, back, left, right, top and bottom directions.

As shown in FIGS. 1 to 5, in the suction port body 50, the casing 52 of the suction port main body 51 includes a bottom portion 52a having a suction port 52aa extending in the left-right direction, a surrounding portion 52b, and an upper portion 52c. A bumper 53 extending in the left-right direction is provided at the front end of the peripheral portion 52b of the housing 52. Note that FIG. 4 shows a state in which the rotating brush 61 is removed from the suction port body 50.

The housing 52 is formed into a substantially T-shape when viewed from above, and has a front part 52x extending in the left-right direction and a rear part 52y protruding rearward from a middle part in the left-right direction of the front part 52x. .
A suction port 52aa is provided at the bottom 52a of the front portion 52x of the housing 52, and a safety switch 65 is provided at a position rearward of the suction port 52aa. Note that the safety switch 65 is a switch that stops driving the rotary brush motor 62 when the suction port body 50 rises from the floor surface.
A rear wheel 66 is provided at the rear portion 52y of the housing 52.

The front end of a suction port 52aa is provided in a notch shape at the corner between the front end of the bottom portion 52a and the front end of the peripheral portion 52b in the housing 52, and the curved lower end of the bumper 53 is provided at the front end of the suction port 52aa. The portion 53a is inserted.
The lower end 53a of the bumper 53 is normally located at a position where it does not come into contact with the rotating brush 61. When the bumper 53 collides with an obstacle (for example, a wall in a room), the lower end 53a moves toward the rotating brush 61 and comes into contact with the rotating brush 61. Contact.

A cleaning mechanism 70 for cleaning the rotating brush 61 is provided on the inner surface of the lower end 53a of the bumper 53.
In the case of the first embodiment, the cleaning mechanism 70 includes a comb portion 71 including a plurality of comb teeth 71a provided at approximately equal intervals along the longitudinal direction (left-right direction) of the inner surface of the lower end portion 53a of the bumper 53. ing.
Further, in the case of the first embodiment, the comb teeth 71a are constituted by ribs having a substantially right triangle shape when viewed from the side. comes into contact with the rotating brush 61. More specifically, when the comb teeth 71a and the rotating brush 61 come into contact with the upper side 71aa (see FIG. 5) forming the right angle part of the comb teeth 71a, the portion of the rotating brush 61 in contact with this side 71aa The shape of the comb teeth 71a, the shape of the lower end 53a of the bumper 53, the range of movement, etc. are taken into consideration so that the direction of rotation is approximately at right angles.

The peripheral portion 52b of the housing 52 is a portion that surrounds the front portion 52x including the suction port 52aa of the bottom portion 52a from the front, rear, left and right sides.
The upper part 52c of the housing 52 is a part connected to the surrounding part 52b and covers the bottom part 52a, and has a cylindrical connecting part 52ca connected to the joint part 55 at the middle part in the left-right direction on the rear end side. ing. Note that a ventilation path 52z is formed between the suction port 52aa of the suction port main body 51 and the connecting portion 52ca.

The joint portion 55 has a front end rotatably coupled to the connecting portion 52ca of the suction port main body 51 about an axis P1 in the front-rear direction, and connects a proximal end connecting portion 59a of the connecting tube portion 59, which will be described later, to an axis P1. It has a recessed portion 58ba which is rotatably received around an axis P2 perpendicular to the axis P2. This recessed portion 58ba has two large and small concave curved surface portions provided at a lower portion and an upper portion.

The connecting pipe portion 59 connects the base end connecting portion 59a provided on the upstream side in the direction in which air flows within the suction port body 50 (hereinafter referred to as the “airflow direction”), and the vacuum cleaner main body 10 directly or with the extension pipe 90. It has a distal end connecting portion 59b on the downstream side in the airflow direction which is detachably connected via the airflow direction.
The base end connecting portion 59a has a convex curved surface portion 59aa that can be slidably contacted with a small concave curved surface portion at the upper portion of the joint portion 55, and a sliding contact end portion 59ab that can be slidably contacted with a large concave curved surface portion at the lower portion of the joint portion 55. have. Note that a pair of pin-shaped terminals 63a are provided around the tip connecting portion 59b of the connecting tube portion 59.

<About cleaning the floor surface with a vacuum cleaner and cleaning the rotating brush>
FIG. 6 is a flowchart of a method for controlling a vacuum cleaner according to the first embodiment, and FIG. 7 is a diagram illustrating a cleaning state of the suction port body according to the first embodiment. Further, FIG. 8 is a diagram illustrating a state in which the bumper of the suction port body of the first embodiment collides with a wall surface, and FIG. 9 is a diagram illustrating a rotating brush cleaning mode of the suction port body of the first embodiment. .
Floor cleaning and cleaning of the rotating brush 61 by the vacuum cleaner 1 of the first embodiment will be described with reference to FIGS. 1 to 9.

First, when the operator (user) turns on the operation start button of the operation buttons 21 of the vacuum cleaner main body 10, the operation starts, and as described above, the suction port body 50 is reciprocated in the front and back direction to clean the floor surface. F is cleaned. At this time, the electric blower 22 is driven with a normal output, and the rotating brush 61 rotates forward in the direction of arrow A (counterclockwise when viewed from the left). Note that during this floor cleaning, dust D such as dust, hair, thread waste, etc. may become entangled and adhere to the rotating brush 61 (see FIG. 7).

In this vacuum cleaner 1, as shown in FIG. 6, the control unit 23 reads the current value of the rotating brush motor 62 in step 1, and in step 2, the current value of the rotating brush motor 62 is lower than the normal operation. Decide whether it is high or not.
When the control unit 23 determines that the current value of the rotary brush motor 62 is not higher than normal operation, it continues the operation at the normal output (step 3).
On the other hand, when the control unit 23 determines that the current value of the rotary brush motor 62 is higher than the normal operation, the control unit 23 increases the output of the electric blower 22 to increase the suction force (step 4). For example, as shown in FIG. 8, when the bumper 53 of the suction port body 50 collides with an obstacle such as an indoor wall W or furniture, the lower end 53a of the bumper 53 and the comb part 71 as the cleaning mechanism 70 move backward. It moves and comes into contact with the rotating brush 61. As a result, the load on the rotating brush motor 62 increases and the current value increases.
In addition, the dust D attached to the rotating brush 61 is scraped off by the comb portion 71. That is, the comb part 71 is pressed against and comes into contact with the rotating brush 61 which is rotating in conjunction with the movement of the suction port body 50 in which the bumper 53 moves rearward, and scrapes off the dust D attached to the rotating brush 61. As a result, the rotating brush 61 is cleaned.

In step 5, the control unit 23 determines whether the state in which the current value of the rotating brush motor 62 is higher than the normal operation continues for a predetermined period of time or more. Note that this time is not particularly limited, and, for example, around 3 seconds (about 2-5 seconds) is appropriate.
When the control unit 23 determines in step 4 that the cleaning has continued for a predetermined period of time or more, the controller 23 shifts to the rotating brush cleaning mode (step 6). For example, when the user consciously presses the bumper 53 against the wall surface W for a predetermined period of time or more, the rotating brush cleaning mode is entered.

In this rotary brush cleaning mode, as shown in FIG. 9, the control unit 23 controls the rotary brush motor 62 so that the rotary brush 61 rotates backward in the direction of arrow B (clockwise when viewed from the left). The rotating brush cleaning mode is performed for a predetermined period of time. This time is not particularly limited, and, for example, around 3 seconds (about 2-5 seconds) is appropriate. Furthermore, in the rotating brush cleaning mode, the output of the electric blower 22 may be further increased. Note that if the user consciously continues to press the bumper 53 against the wall surface W, the current value may continue to be higher than in normal operation, and the rotating brush cleaning mode may continue during this period.

In the rotating brush cleaning mode, since the rotating brush 61 automatically rotates in reverse, the lumps of dust D accumulated on the comb portion 71 flow in the same direction as the rotating brush 61 rotating in the reverse direction, and are sent to the ventilation path 52z side. A lump of dust D is removed from. At this time, if the output of the electric blower 22 is higher than the normal output, the mass of dust D tends to flow toward the ventilation path 52z due to the strong suction force. Note that the floor surface F may be cleaned by moving the suction port body 50 back and forth in the rotating brush cleaning mode.

When the rotating brush cleaning mode ends, the control unit 23 controls the rotating brush motor 62 so that the rotating brush 61 rotates in the forward direction. Further, after the rotary brush cleaning mode ends, the control unit 23 determines in step 7 whether or not the off button of the operation buttons 21 has been pressed, and if it is determined that it has been pressed, ends the operation.
Further, if the control unit 23 determines in step 5 that the current value of the rotating brush motor 62 is higher than normal operation for a predetermined period of time or more, and if the off button is not pressed in step 7, If it is determined, the electric blower 22 is returned to its normal output and operated (step 3). Note that after step 3, steps 1 and subsequent steps are repeated.
Although not shown, a step is provided between step 3 and step 1 to determine whether or not the cut button has been pressed. If it is determined that there is no such thing, repeat Step 1 and subsequent steps.

(Modified example of the first embodiment)
In the first embodiment, the control section 23 is configured to control the rotary brush motor 62 so that the rotation direction of the rotary brush 61 is automatically switched based on the current value of the rotary brush motor 62; The direction of rotation of the rotating brush 61 may be switched by . In this case, for example, a switching button for switching the rotation direction (forward direction and reverse direction) of the rotating brush 61 may be provided as one of the operation buttons 21.
That is, the rotation direction of the rotating brush 61 can be switched only automatically by the control unit 23, only manually by the switching button, or both automatically and manually. By adding manual switching, it is possible to shift to the rotating brush cleaning mode even during normal cleaning when the bumper 53 is not pressed against an obstacle.

(Second embodiment)
FIG. 10 is a bottom view of the suction port body of the second embodiment, and FIG. 11 is a diagram illustrating a cleaning state of the suction port body of the second embodiment. Further, FIG. 12 is a diagram illustrating a state in which the suction port body of the second embodiment is moved toward the rear user side, and FIG. 13 is a diagram illustrating a state in which the suction port body of the second embodiment is moved toward the user side. FIG. Note that in FIGS. 10 to 13, elements similar to those in FIGS. 3 to 9 are given the same reference numerals.
The suction port body 150 of the second embodiment is generally configured in the same manner as the first embodiment, except that the configuration of the cleaning mechanism 170 of the rotating brush 61 is different from that of the first embodiment.
Hereinafter, the differences between the second embodiment and the first embodiment will be mainly explained.

As shown in FIGS. 10 to 13, in the case of the second embodiment, the cleaning mechanism 170 includes a comb portion 171 and a flexible sheet-like operating member 172. This operating member 172 is configured to undergo various bending deformations, including a twisting direction, so that the joint portion 155 can be rotated about the first axis P1 with respect to the suction port main body 51 via the connecting pipe portion 59. It is possible to use a thin metal plate piece that is possible and has shape recovery properties (appropriate flexibility and rigidity). Note that if a rod-shaped flexible member (for example, a wire with shape restorability) is used as the operating member 172, it becomes easier to cope with various curved deformations including twisting directions.

The comb portion 171 has comb teeth 171a at the lower end having a length equal to or longer than the length of the rotating brush 61, and has a shaft portion 171b at the upper end equal to the length in the left-right direction of the suction port body 150. .
The comb portion 171 is provided at a rear position above the rotating brush 61 inside the suction port main body 51 so as to be swingable about a left-right direction shaft portion 171b.
The shaft portion 171b is pivotally attached to the left and right side portions of the peripheral portion 52b of the suction port body 51 so as to be rotatable.

The operating member 172 is moved forward by rotation about the axis P2 of the rear end 172a connected to the proximal end connecting portion 59a of the connecting pipe portion 59 of the suction port body 150 and the proximal end connecting portion 59a. It has a front end 172b that can press the comb portion 171 toward the rotating brush 61 side.
In the case of the second embodiment, the rear end 172a of the operating member 172 is fixed to the convex curved surface portion 59aa, which is the outer surface of the proximal end connecting portion 59a. Further, the front end 172b of the operating member 172 is connected to a position above the comb teeth 171a of the comb portion 171.

In addition, in the second embodiment, the small concave curved surface portion in sliding contact with the convex curved surface portion 59aa of the proximal end connecting portion 59a of the connecting tube portion 59 in the joint portion 155 has a depth corresponding to the width and thickness of the operating member 172. A groove portion 155g having a groove portion 155g is formed in the front-rear direction. As a result, the operating member 172 is fitted into the groove 155g so as to be movable in the front-rear direction, and a gap is created by the operating member 172 between the small concave curved surface portion of the joint portion 155 and the convex curved surface portion 59aa of the proximal end connecting portion 59a. prevents it from forming.

In this suction port body 150, as shown in FIG. 11, when the tip connecting portion 59b of the connecting tube portion 59 is in the rear position (substantially horizontal state), the comb portion 171 is pulled rearward by the operating member 172, and the rotating brush 61 is pulled backward by the operating member 172. Become apart from.
As shown in FIG. 12, by rotating the connecting tube portion 59 forward, the operating member 172 moves forward, so that the front end 172b of the operating member 172 moves the comb teeth 171a of the comb portion 171 closer to the rotating brush 61. to press.

As shown in FIG. 13, when the connecting tube section 59 is rotated forward until it becomes vertical, the front end 172b of the operating member 172 comes into a state in which the comb teeth 171a of the comb section 171 are pressed against the rotating brush 61. Therefore, by rotating the connecting pipe portion 59 forward until it becomes vertical while cleaning the floor surface F where the rotating brush 61 is rotating normally (counterclockwise when viewed from the left side), the comb portion 171 is rotated. The dust D attached to the rotating brush 61 is scraped off by the comb teeth 171a. As a result, the rotating brush 61 is cleaned.

Note that cleaning of the floor surface F using the suction port body 150 is normally performed with the connecting pipe section 59 in a horizontal or inclined state as shown in FIG. 11 or 12, and as shown in FIG. When you stand up vertically, it is time to temporarily suspend cleaning. Therefore, the comb part 171 does not need to come into contact with the rotating brush 61 until the connecting pipe part 59 is vertically erected (see FIG. 13) so as not to interfere with cleaning, but the connecting pipe part 59 shown in FIG. In this state, the comb portion 171 may lightly contact the rotating brush 61 to scrape off the dust D.

Further, as the connecting tube portion 59 rotates rearward from the state shown in FIG. 13 as shown in FIGS. 12 and 11, the operating member 172 moves rearward, and the comb portion 171 pulled by the operating member 172 is thereby transferred to the rotating brush. 61. In other words, the front end 172b of the operating member 172 releases the comb portion 171 from being pressed against the rotating brush 61. At this time, a lump of dust D is attached to the comb teeth 171a of the comb part 171, and as the comb part 171 moves away from the rotating brush 61 and swings backward, the lump of dust D is sucked toward the connecting pipe part 59. is removed from the comb teeth 171a. At this time, by increasing the output of the electric blower, dust can be easily removed from the comb teeth 171a.

(Modified example of second embodiment)
In the cleaning mechanism 170, the front end 172b of the operating member 172 may be separated from the comb portion 171.
Also in this case, by rotating the connecting tube part 59 forward, the front end 172b of the operating member 172 can press the comb part 171 against the rotating brush 61 (see FIG. 13).
Further, in this case, when the front end 172b of the operating member 172 separates from the comb portion 171 and releases the pressure of the comb portion 171 toward the rotating brush 61 while the suction port body 150 is placed on the floor surface F, the rotating brush 61 The comb portion 171 is suspended at a position where it does not come into contact with. Further, the comb portion 171 is pulled toward the connecting tube portion 59 by the suction force and becomes inclined (see FIG. 11), and the lumps of dust D are suctioned and removed from the comb teeth 171a toward the connecting tube portion 59.

(Third embodiment)
FIG. 14 is a bottom view of the suction port body of the third embodiment, and FIG. 15 is a diagram illustrating a cleaning state of the suction port body of the third embodiment. Further, FIG. 16 is a diagram illustrating a state in which the suction port body of the third embodiment is moved toward the rear user side, and FIG. 17 is a diagram illustrating a state in which the suction port body of the third embodiment is moved toward the user side. FIG. Note that in FIGS. 14 to 17, elements similar to those in FIGS. 3 to 9 are given the same reference numerals.
The suction port body 250 of the third embodiment is also configured generally in the same manner as the first embodiment, except that the configuration of the cleaning mechanism 270 of the rotating brush 61 is different from that of the first embodiment.
Hereinafter, differences between the third embodiment and the first embodiment will be mainly described.

As shown in FIGS. 14-17, in the case of the third embodiment, the cleaning mechanism 270 includes a comb portion 271, a wire member 272, and a biasing member 273 provided within the suction port body 251. According to this cleaning mechanism 270, the wire member 272 can easily follow the movement of rotating the joint portion 55 with respect to the suction port body 251 around the first axis P1 via the connecting pipe portion 59. .
The comb portion 271 has comb teeth 271a having a length equal to or longer than the length of the rotating brush 61 at the lower end, and has an abutment portion 271b that comes into contact with the biasing member 273 at the upper end. Note that the contact portion 271b is provided at an intermediate position in the longitudinal direction of the comb portion 271.

The comb part 271 also has a shaft part 271c between the upper end and the lower end, which is equivalent to the length of the suction port body 250 in the left-right direction, and has a wire attachment part on the surface on the connection pipe part 59 side near the upper part of the comb teeth 271a. 271d.
The comb portion 271 is provided inside the suction port body 251 at a rear position above the rotary brush 61 so as to be swingable about a left-right direction shaft portion 271c.
The shaft portion 271c is rotatably pivotally attached to the left and right side portions of the peripheral portion 52b of the suction port main body 51.
The contact portion 271b enters into a biasing member storage chamber 152ca provided on the outer surface side of the upper portion 152c of the suction port body 251.

The wire member 272 has one end connected to a wire attachment portion 59ax provided on the end surface of the upper convex curved surface portion 59aa of the proximal end connection portion 59a of the joint portion 55 of the suction port body 250, and a wire attachment portion 271d of the comb portion 271. and the other end connected to the other end. Note that the wire member 272 may be stretchable or non-stretchable.
The biasing member 273 is stored in a biasing member housing so as to bias the abutment portion 271b above the shaft portion 271c rearward so as to press the comb teeth 271a below the shaft portion 271c of the comb portion 271 against the rotating brush 61. It is housed in a chamber 152ca. In the second embodiment, a compression coil spring is used as the biasing member 273, but the present invention is not limited to this, and for example, a plate spring, an elastic foam, a torsion spring, a tension coil spring, or the like may be used.

In this suction port body 250, as shown in FIG. 15, when the tip connecting portion 59b of the connecting tube portion 59 is in the rear position (substantially horizontal state), the comb portion 271 is pulled rearward by the wire member 272, and the rotating brush 61 is pulled backward by the wire member 272. Become apart from. At this time, a compression coil spring serving as a biasing member 273 that presses the contact portion 271b at the upper end of the comb portion 271 rearward is compressed by the tensile force of the wire member 272 that pulls the lower portion of the comb portion 271 rearward.

As shown in FIG. 16, by rotating the connecting tube part 59 forward, the wire attachment part 59ax moves forward, thereby loosening the tension on the lower part of the comb part 271 by the wire member 272. As a result, the contact portion 271b pressed by the biasing member 273 around the shaft portion 271c of the comb portion 271 swings backward, and the comb teeth 171a swing forward to approach the rotating brush 61. do.

As shown in FIG. 17, when the connecting tube portion 59 is rotated forward until it becomes vertical, the comb teeth 271a are pressed against the rotating brush 61 by the urging member 273 via the contact portion 271b of the comb portion 271. . Therefore, by rotating the connecting pipe portion 59 forward until it becomes vertical while cleaning the floor surface F where the rotating brush 61 is rotating normally (counterclockwise when viewed from the left side), the comb portion 171 is rotated. The dust D attached to the rotating brush 61 is scraped off by the comb teeth 171a. As a result, the rotating brush 61 is cleaned.

Note that cleaning of the floor surface F by the suction port body 250 is normally performed with the connecting pipe section 59 in a horizontal or inclined state as shown in FIG. 15 or 16, and as shown in FIG. When you stand up vertically, it is time to temporarily suspend cleaning. Therefore, the comb portion 271 does not need to come into contact with the rotating brush 61 until the connecting tube portion 59 is vertically erected (see FIG. 17) so as not to interfere with cleaning, but the connecting tube portion 59 shown in FIG. In this state, the comb portion 271 may lightly contact the rotating brush 61 to scrape off the dust D.

Further, as the connecting tube portion 59 rotates backward from the state shown in FIG. 17 as shown in FIGS. 16 and 15, the wire attachment portion 59ax and the wire member 272 move backward, and the wire attachment portion 59ax and the wire member 272 are thereby pulled by the wire member 272. The comb teeth 271a of the comb portion 271 are separated from the rotating brush 61. That is, the pressing of the comb portion 271 against the rotating brush 61 by the urging member 273 is released. At this time, a lump of dust D is attached to the comb teeth 271a of the comb part 271, and as the comb part 271 moves away from the rotating brush 61 and swings backward, the lump of dust D is sucked toward the connecting pipe part 59. is removed from the comb teeth 171a. At this time, by increasing the output of the electric blower, dust can be easily removed from the comb teeth 171a.

(Fourth embodiment)
FIG. 18 is a perspective view of a stand for a vacuum cleaner according to the fourth embodiment, viewed diagonally from the front, and FIG. 19 is a diagram illustrating a state in which the suction port body is moved onto the mounting table of the stand in FIG. 18. FIG. 20 is a diagram illustrating a state in which the rotating brush is being cleaned by the comb portion of the stand in FIG. 18, and FIG. 21 is a diagram illustrating the cleaning mode of the rotating brush for the suction port body of the fourth embodiment. be. Moreover, FIG. 22 is a flowchart of the control method of the vacuum cleaner of 4th Embodiment. Note that in FIGS. 19 to 21, elements similar to those in FIGS. 3 to 9 are given the same reference numerals.
In the first to third embodiments and their modifications, the cleaning mechanism for the rotating brush is provided inside the suction port body, but in the fourth embodiment, the cleaning mechanism for the rotating brush is provided inside the suction port body. An example is shown in which the device is installed outside of the device.

In the fourth embodiment, a vacuum cleaner 300 including a vacuum cleaner stand 80 shown in FIGS. 18 to 21 and a vacuum cleaner 301 housed in the vacuum cleaner stand 80 is specifically illustrated.
This stand 80 for a vacuum cleaner includes a mounting table 81 on which a suction port body 350 of a stick-type (see FIG. 1), canister-type, upright-type, or hand-held vacuum cleaner 301 is placed; It includes a positioning wall 82 provided on the upper surface and a cleaning mechanism 370 provided so as to be buried in the upper surface of the mounting table 81.

The vacuum cleaner 301 includes a vacuum cleaner main body (not shown) having an electric blower, a dust collecting section, and a control section, and a suction port body 350 connected to the vacuum cleaner main body directly or via a connecting pipe.
In addition, the suction port body 350 includes a rotating brush 61 and a rotating brush motor (not shown).
In this vacuum cleaner 301, the electric blower and the rotating brush motor can be driven and controlled by the control unit, and the vacuum cleaner 301 is configured to shift to a rotating brush cleaning mode, which will be described later, when the vacuum cleaner 301 is stored in the stand 80. has been done. Note that the suction port body 350 does not include the rotating brush cleaning mechanism described in the first to third embodiments.

In the stand 80, the mounting table 81 is a rectangular plate, and a slope 81a is provided on the upper surface of one side thereof.
The positioning wall 82 is erected in the vicinity of the other three sides on the upper surface of the mounting table 81 where the slope 81a is not provided, and is approximately U-shaped in plan view along the three sides. side wall portion 82b, and is open upward and to the slope 81a side.
This stand 80 is configured so that the suction port body 350 enters onto the mounting table 81 from the slope 81a and positions the suction port body 350 when the bumper 53 comes into contact with the central wall portion 82a of the positioning wall 82. .

The cleaning mechanism 370 is a space surrounded by the positioning wall 82 on the upper surface of the mounting table 81, and includes a comb part 371 provided along the central wall part 82a at a position near the central wall part 82a, and a comb part 371 provided above the central wall part 82a. and a biasing member 372 that biases toward. Note that, at a position on the upper surface of the mounting table 81 where the cleaning mechanism 370 is provided, an elongated recess 81aa is provided in which the biasing member 372 of the cleaning mechanism 370 and a base portion 371a of the comb portion 371, which will be described later, are embedded.

The comb portion 371 includes an elongated plate-shaped base portion 371a and a plurality of comb teeth 371b provided on the upper surface of the base portion 371a. The comb teeth 371b are triangular ribs having upwardly protruding tops, and are arranged at approximately equal intervals in the longitudinal direction of the base portion 371a.
In this embodiment, the biasing member 372 is made of an elongated plate-shaped elastic foam placed at the bottom of the recess 81aa. Note that the biasing member 372 is not particularly limited, and a plurality of compression coil springs, plate springs, or the like may be used instead of the elastic foam.

When the vacuum cleaner 301 is not housed in the stand 80, the comb teeth 371b of the comb portion 371 protrude upward from the upper surface of the mounting table 81. At this time, the height of the top surface of the base part 371a may be made to match the top surface of the mounting table 81, or the height of the top surface of the base part 371a may be slightly higher than the top surface of the mounting table 81. .

Next, the rotating brush cleaning mode of the electric cleaning device 300 will be described with reference to the flowchart in FIG. 22.
When storing the vacuum cleaner 301 in the stand 80, the vacuum cleaner 301 is operated at normal output, and the suction port body 350 is advanced onto the mounting table 81 from the slope 81a. At this time, as one of the operation buttons 21 on the vacuum cleaner body, for example, a button labeled "rotating brush cleaning mode" is provided, and by pressing this button, the vacuum cleaner 301 starts operating with normal output. , the flowchart described below may proceed.

In the normal output operation of the vacuum cleaner 301, the electric blower is driven with normal output, and the rotating brush 61 is rotating forward in the direction of arrow A (counterclockwise when viewed from the left).
In step 1, the control unit reads the current value of the rotating brush motor, and in step 2, determines whether the current value of the rotating brush motor 62 is higher than normal operation.
As shown in FIG. 19, when the rotating brush 61 of the suction port body 350 is not yet in contact with the comb portion 371, the control unit determines that the current value of the rotating brush motor is not higher than normal operation, and Continue operation at the output (Step 3). Note that from step 3 onwards, the process is repeated from step 1.

Before the bumper 53 of the suction port body 350 comes into contact with the center wall 82a of the positioning wall 82 of the stand 80, as shown in FIG. 19, the bumper 53 comes into contact with the comb teeth 371b of the comb part 371. When the bumper 53 moves further forward, the bumper 53 pushes the comb portion 371 downward against the urging force of the urging member 372.
As shown in FIG. 20, after the bumper 53 passes over the comb portion 371, it abuts against the center wall portion 82a of the positioning wall 82, thereby positioning the suction port body 350 at an appropriate storage position on the mounting base 81 of the stand 80. be done. Further, after the bumper 53 passes over the comb portion 371, the comb portion 371 is moved upward by the urging force of the urging member 372, and as a result, the plurality of comb teeth 371b of the comb portion 371 are rotated by the rotating brush of the suction port body 350. It is pressed against the front part of 61. As a result, the dust D (dust, hair, thread waste, etc.) adhering to the rotating brush 61 is scraped off by the comb portion 371.

When the comb portion 371 comes into contact with the rotating rotating brush 61 and scrapes off the dust D, the load applied to the rotating brush motor increases due to friction between the comb portion 371 and the rotating brush 61, and the current value of the rotating brush motor increases. do.
As shown in FIG. 22, when the control unit 23 determines that the current value of the rotary brush motor is higher than the normal operation, the controller 23 shifts to the rotary brush cleaning mode (step 4). The timing for shifting to the rotating brush cleaning mode after the control unit 23 determines that the current value of the rotary brush motor is higher than normal operation may be immediately after the determination, or may be for a predetermined period of time (for example, 1 to 3 seconds). ) after the lapse of time.
In this rotary brush cleaning mode, the control unit 23 controls the rotary brush motor so that the rotary brush 61 rotates in the reverse direction in the direction of arrow B, as shown in FIG. The rotating brush cleaning mode is performed for a predetermined period of time. This time is not particularly limited, and, for example, around 3 seconds (about 2-5 seconds) is appropriate. Further, in the rotating brush cleaning mode, the output of the electric blower may be increased.

In the rotating brush cleaning mode, the rotating brush 61 automatically rotates in reverse, so that the lumps of dust D accumulated on the comb portion 371 flow in the same direction as the rotating brush 61 rotating in the reverse direction and are sent to the ventilation path 52z side. A lump of dust D is removed from. At this time, by increasing the output of the electric blower higher than the normal output, a strong suction force makes it easier for the lumps of dust D to flow toward the ventilation path 52z.
As shown in FIG. 22, when the rotary brush cleaning mode ends, the control unit turns off the power in step 5, and ends the operation of the vacuum cleaner 301.

As described above, according to the vacuum cleaner 300 of the fourth embodiment, the comb portion 371 rotates due to the operation of placing the suction port body 350 of the vacuum cleaner 301 on the mounting table 81 and the rotation of the rotating brush 61. It is configured to come into contact with the rotating brush 61.
Note that when the vacuum cleaner 301 is stored in the stand 80 in this manner, if the suction port body 350 is not pushed to the proper storage position until the bumper 53 hits the center wall 82a, the rotating brush cleaning mode will start. Therefore, the user needs to correct the position of the suction port body 350. However, it is possible that the user may not be aware of this, so even if a speaker is installed on the vacuum cleaner body, for example, a voice guide such as "Please store the suction nozzle behind the stand" will be emitted from the speaker. good.

(Modified example of the fourth embodiment)
The suction port body of the vacuum cleaner in the fourth embodiment may be the suction port body described in the first to third embodiments and their modifications, which have a cleaning mechanism inside the suction port body.
According to this configuration, the rotating brush can be cleaned by the comb part provided in the suction port body during cleaning work, and the rotating brush can be cleaned by the comb part provided in the stand during storage. In addition, in the suction port bodies of the second and third embodiments and their modifications, the comb portion inside the suction port body can also clean the rotating brush in cooperation with the comb portion of the stand when stored.

(Other embodiments)
1. The suction port bodies of the second and third embodiments and their modifications may be configured such that the rotating brush is rotated by a turbine rotated by the airflow during suction.
2. The suction port bodies described in the first to fourth embodiments and their modifications may have joints omitted. In other words, the proximal end connection part of the connecting pipe part is directly connected to the suction port body so as to be rotatable in the front-rear direction (vertical direction) about the left-right axis, and the connecting pipe part The cleaning mechanism described in the first to third embodiments and their modifications may be provided to the suction port body that is capable of only this movement.

(summary)
The rotating brush cleaning mechanism of the present invention includes a comb portion that can come into contact with a rotating brush that is rotatably provided at a suction port of a suction port body of a vacuum cleaner,
The comb part is provided on a movable part inside the suction port body and contacts the rotating brush which is rotating in conjunction with the movement of the movable part, or is provided on the outside of the suction port body and rotates. It is configured to come into contact with the rotating brush inside and scrape off dust attached to the rotating brush.
According to this configuration, when the vacuum cleaner's suction port body moves back and forth during cleaning, or when the vacuum cleaner's suction port body moves to the storage location, the rotating brush is The comb portion of the cleaning mechanism can be brought into contact with the cleaning mechanism. Therefore, unlike in the prior art (Patent Documents 1 and 2), there is no need for the user to operate the operating lever provided on the suction port in a bent position to bring the comb part into contact with the rotating brush, and the user does not have to worry about the user's legs or back. can reduce the burden of Further, according to the present invention, since the rotating brush can be cleaned as needed, the comb always comes into contact with the rotating rotating brush unlike the conventional technology (Patent Document 3), which causes a load on the rotating brush motor. The rotational force of the turbine brush does not increase or the rotational force of the turbine brush decreases.

The rotating brush cleaning mechanism of the present invention may be configured as in the following first to fourth embodiments, or they may be combined as appropriate.

- The suction port body has a bumper that is movable in the front and rear direction at a position in front of the rotating brush,
The comb portion is provided on the inner surface of the bumper inside the suction port body,
The comb portion may be configured to be pressed against the rotating brush by the operation of moving the bumper backward (first embodiment).
According to this configuration, for example, when the bumper is pressed against an obstacle such as a wall or furniture, the comb portion comes into contact with the rotating rotating brush and generates dust (dust, fibrous dust such as hair and lint, etc.). It is possible to obtain a cleaning mechanism with a simple structure that can scrape off.

- The cleaning mechanism further includes a flexible sheet-like or rod-like operating member provided within the suction port body,
The suction port body includes a suction port body that accommodates the rotating brush, and a connecting pipe portion provided in the suction port body at a position rearward of the rotating brush so as to be rotatable about a first axis in the left-right direction. and has
The connecting pipe portion has a base end rotatably connected to the suction port main body about the first axis,
The comb portion is provided at a rear position of the upper part of the rotating brush inside the suction port main body so as to be swingable about a second axis in the left-right direction,
The operating member is moved forward by a rear end connected to the base end of the connecting tube portion and rotation of the base end around the first axis to move the comb portion toward the rotating brush side. a pressable front end;
The operation of rotating the connecting tube portion forward causes the operating member to move forward, whereby the front end of the operating member presses the comb portion against the rotating brush, and the connecting tube portion rotates rearward. Accordingly, the operating member may be moved rearward, thereby releasing the front end of the operating member from pressing the comb portion against the rotating brush (second embodiment).
According to this configuration, when cleaning the floor while reciprocating the suction port body of the vacuum cleaner in the front and back direction, the suction port body moves forward (the connecting pipe portion rotates backward), and the comb portion moves away from the rotating brush, and the suction port moves backward toward the user (the connecting tube rotates forward), causing the comb to come into contact with the rotating brush and scrape off dust (dust, fibrous dust, etc.) A cleaning mechanism can be obtained.

- The cleaning mechanism further includes a wire member and a biasing member provided within the suction port body,
The suction port body includes a suction port body that accommodates the rotating brush, and a connecting pipe portion provided in the suction port body at a position rearward of the rotating brush so as to be rotatable about a first axis in the left-right direction. and has
The connecting pipe portion has a base end rotatably connected to the suction port main body about the first axis,
The comb portion is provided at a rear position of the upper part of the rotating brush inside the suction port main body so as to be swingable about a second axis in the left-right direction,
The wire member connects the base end of the connecting tube portion and a position below the second axis of the comb portion,
The biasing member biases a position above the second axis rearward so as to press a lower end of the comb portion below the second axis against the rotating brush;
As the connecting tube portion rotates rearward, the wire member pulls the lower position of the comb portion rearwardly against the urging force of the urging member and separates it from the rotating brush, and the connecting tube portion It may be configured such that the forward rotation action loosens the tension of the lower position of the comb part by the wire member, and the lower end of the comb part is pressed against the rotating brush by the biasing force of the biasing member. (Third embodiment).
With this configuration, as in the second embodiment, when cleaning the floor while reciprocating the suction port body of the vacuum cleaner in the front and back direction, the suction port body moves forward (the connecting pipe portion moves backward). The comb part separates from the rotating brush by rotating (rotating), and the suction port body moves rearward toward the user (the connecting pipe part rotates forward), causing the comb part to come into contact with the rotating brush and remove dust (dust, fibers, etc.). It is possible to obtain a cleaning mechanism that can scrape off dust (such as dust etc.).

- The comb part is provided on a mounting base of a stand for a vacuum cleaner installed outside the suction port body,
The comb portion may be configured to come into contact with the rotating brush due to the operation of placing the suction port body on the mounting table and the rotation of the rotating brush (fourth embodiment). form).
According to this configuration, the cleaning mechanism can scrape off dust (dust, fibrous dust, etc.) by moving the suction port of the vacuum cleaner onto the mounting table so that the comb comes into contact with the rotating rotating brush. can be obtained.
Furthermore, in this case, it may further include a biasing member that biases the comb portion toward the rotating brush side of the suction port body placed on the mounting table.
According to this configuration, since the comb portion is movable in the vertical direction, the bumper of the suction port body can easily climb over the comb portion when moving the suction port body onto the mounting table, and the comb portion can be moved properly by the biasing member. It is possible to obtain a cleaning mechanism that can scrape off dust (dust, fibrous dust, etc.) by contacting with a rotating brush with a strong force.

Further, according to the present invention, the following suction port body and vacuum cleaner may be provided, each of which has a cleaning mechanism inside the suction port body according to the first to third embodiments.

- A rotating brush, a rotating brush motor that rotates the rotating brush, a bumper provided in front of the rotating brush so as to be movable in the front-rear direction, and provided on the inner surface of the bumper so as to be movable toward and away from the rotating brush. A suction port body including the cleaning mechanism of the first embodiment may be provided.
According to this configuration, the cleaning mechanism can be provided without significantly changing the structure of the existing suction port body.
The invention also includes the suction port body of the first embodiment and a vacuum cleaner body connected to the suction port body directly or via an extension pipe,
The vacuum cleaner main body has an electric blower and a control section that can control driving of the electric blower and the rotating brush motor,
The control unit controls the vacuum cleaner to reversely rotate the output shaft of the rotary brush motor for a predetermined period of time so that the rotary brush rotates in reverse when the current value of the rotary brush motor is higher than normal operation. may be provided.
According to this configuration, the dust (dust, fibrous dust, etc.) scraped off by the rotating brush by the comb part is easily removed from the comb part by the reverse rotation of the rotating brush, and is easily removed by suction.
Furthermore, in the case of this vacuum cleaner, the control unit may control the electric blower to increase its output for a predetermined period of time when the current value of the rotating brush motor is higher than normal operation.
According to this configuration, the dust (dust, fibrous dust, etc.) of the rotating brush scraped off by the comb portion can be removed by strong suction force.

- A rotating brush, a suction port body that accommodates the rotating brush, and a connecting pipe portion provided in the suction port body at a position rearward of the rotating brush so as to be rotatable about a first axis in the left-right direction. , there is provided a suction port body comprising the cleaning mechanism according to the second or third embodiment, which has the comb portion provided at a rear position above the rotating brush so as to be swingable about a second axis in the left-right direction. may be done.
According to this configuration, it is possible to obtain a suction port body in which the comb portion can be moved toward and away from the rotating brush by rotating the connecting tube portion in the front-rear direction.
Moreover, a vacuum cleaner including the suction port body of the second or third embodiment and a vacuum cleaner main body connected to the suction port body directly or via an extension tube may be provided.
According to this configuration, the comb part is brought into contact with the rotating brush to scrape off dust (dust, fibrous dust, etc.) from the rotating brush, and the comb part is moved away from the rotating brush to suction and remove the dust accumulated on the comb part. be able to.

Moreover, according to the present invention, the following stand for a vacuum cleaner and a vacuum cleaner equipped with the cleaning mechanism of the fourth embodiment may be provided.

- A stand for a vacuum cleaner may be provided, which includes a mounting table capable of supporting a suction port body of a vacuum cleaner, and the cleaning mechanism of the fourth embodiment provided on the mounting table.
According to this configuration, a stand is obtained that can scrape off dust (dust, fibrous dust, etc.) by bringing the comb part into contact with the rotating rotating brush by moving the suction port body of the vacuum cleaner onto the mounting table. be able to.
In addition, in this stand, a positioning wall is provided on the top surface of the mounting table,
By positioning the suction port body in contact with the positioning wall, the comb portion of the cleaning mechanism may be able to contact the rotating brush.
According to this configuration, the rotating brush can be cleaned by storing the suction port body of the vacuum cleaner in an appropriate storage position of the stand.

The vacuum cleaner also includes a stand for the vacuum cleaner and a vacuum cleaner that is placed on the stand of the stand,
The vacuum cleaner includes a suction port body having a rotating brush and a motor for the rotating brush, and a vacuum cleaner body connected to the suction port body directly or via an extension pipe,
The vacuum cleaner main body has an electric blower and a control section that can control driving of the electric blower,
The control unit is configured to control an electric cleaning device to control an output shaft of the rotary brush motor to reversely rotate for a predetermined period of time so that the rotary brush rotates in reverse when a current value of the rotary brush motor is higher than normal operation. may be provided.
According to this configuration, it is possible to obtain an electric cleaning device that can remove dust (dust, fibrous dust, etc.) scraped by the rotating brush with the comb portion using a strong suction force.
Further, in this case, the control unit may control the electric blower to increase its output for a predetermined period of time when the current value of the rotary brush motor is higher than normal operation.
According to this configuration, the dust (dust, fibrous dust, etc.) scraped off by the rotating brush by the comb part is easily removed from the comb part by the reverse rotation of the rotating brush, and is easily removed by suction.
Moreover, in this vacuum cleaner, the suction port body of the vacuum cleaner may be the suction port body of the first, second, or third embodiment.

Note that the disclosed embodiments should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims rather than the above description, and it is intended that all changes within the meaning and range equivalent to the claims are included.

1, 301 Vacuum cleaner 10 Vacuum cleaner body 22 Electric blower 23 Control unit 50, 150, 250, 350 Suction port body 51, 251 Suction port body 53 Bumper 59 Connection pipe portion 59a Base end connection portion 61 Rotating brush 62 For rotating brush Motor 70, 170, 270, 370 Cleaning mechanism 71, 171, 271, 371 Comb part 80 Stand 81 Mounting table 90 Extension tube 172 Operating member 172a Rear end 172b Front end 272 Wire member 273 Biasing member 372 Biasing member 300 Electric cleaning device D Dust P1, P2 Axial center

Claims (9)

A comb part that can contact a rotating brush rotatably provided at the suction port of a suction port body of a vacuum cleaner , and a flexible sheet-like or rod-shaped operating member provided within the suction port body ,
The comb portion is provided in a movable part inside the suction port body, and is configured to come into contact with the rotating brush that is rotating in conjunction with the movement of the movable part, and scrape off dust attached to the rotating brush. has been
The suction port body includes a suction port body that accommodates the rotating brush, and a connecting pipe that is rotatable about a first axis in the left-right direction at a position rearward of the rotating brush in the suction port body. and has a
The connecting pipe portion has a base end rotatably connected to the suction port main body about the first axis,
The comb portion is provided at a rear position of the upper part of the rotating brush inside the suction port main body so as to be swingable about a second axis in the left-right direction,
The operating member is moved forward by a rear end connected to the base end of the connecting tube portion and rotation of the base end around the first axis to move the comb portion toward the rotating brush side. a pressable front end;
The operating member moves forward due to the forward rotation of the connecting tube portion, whereby the front end of the operating member presses the comb portion against the rotating brush, and the connecting tube portion rotates rearward. A cleaning mechanism for a rotating brush, characterized in that the operating member is moved rearward by the operation member, thereby releasing the front end of the operating member from pressing the comb portion against the rotating brush. A comb portion that can contact a rotating brush rotatably provided at the suction port of a suction port body of a vacuum cleaner , and a wire member and a biasing member provided within the suction port body ,
The comb portion is provided in a movable part inside the suction port body, and is configured to come into contact with the rotating brush that is rotating in conjunction with the movement of the movable part, and scrape off dust attached to the rotating brush. has been
The suction port body includes a suction port body that accommodates the rotating brush, and a connecting pipe that is rotatable about a first axis in the left-right direction at a position rearward of the rotating brush in the suction port body. and has a
The connecting pipe portion has a base end rotatably connected to the suction port main body about the first axis,
The comb portion is provided at a rear position of the upper part of the rotating brush inside the suction port main body so as to be swingable about a second axis in the left-right direction,
The wire member connects the base end of the connecting tube portion and a position below the second axis of the comb portion,
The biasing member biases a position above the second axis rearward so as to press a lower end of the comb portion below the second axis against the rotating brush;
As the connecting tube portion rotates rearward, the wire member pulls the lower position of the comb portion rearwardly against the urging force of the urging member and separates it from the rotating brush, and the connecting tube portion It is characterized in that the pulling of the lower position of the comb part by the wire member is loosened by the forward rotation action, and the lower end of the comb part is pressed against the rotating brush by the biasing force of the biasing member. A rotating brush cleaning mechanism. The suction port body has a bumper provided in a position in front of the rotating brush so as to be movable in the front and rear direction,
Another comb portion is provided on the inner surface of the bumper inside the suction port body,
The cleaning mechanism according to claim 1 or 2, wherein the other comb portion is pressed against the rotating brush by the rearward movement of the bumper. Further comprising another comb part provided on a mounting base of a stand for a vacuum cleaner installed outside the suction port body,
10. The vacuum cleaner is configured such that the other comb portion comes into contact with the rotating rotating brush due to the operation of placing the suction port body on the mounting table and the rotation of the rotating brush. 3. The cleaning mechanism according to any one of 3. a rotating brush, a suction port body that accommodates the rotating brush, and a connecting pipe portion provided in the suction port body at a position rearward of the rotating brush so as to be rotatable about a first axis in the left-right direction; A suction suction device comprising: the cleaning mechanism according to claim 1 or 2, wherein the comb portion is provided at a rear position of the upper part of the rotating brush so as to be swingable about a second axis in the left-right direction. Mouth body. A suction port body comprising: a rotating brush; a bumper provided in front of the rotating brush so as to be movable in the front-rear direction ; and the cleaning mechanism according to claim 3. The suction port body according to claim 5 or 6, further comprising a rotating brush motor that rotates the rotating brush. A vacuum cleaner body comprising: the suction port body according to claim 7; and a vacuum cleaner body connected to the suction port body directly or via an extension pipe;
The vacuum cleaner main body has an electric blower and a control section that can control driving of the electric blower and the rotating brush motor,
The control unit controls the output shaft of the rotary brush motor to rotate in reverse for a predetermined period of time so that the rotary brush rotates in reverse when the current value of the rotary brush motor is higher than normal operation. vacuum cleaner. The vacuum cleaner according to claim 8, wherein the control unit controls the electric blower to increase its output for a predetermined period of time when the current value of the rotary brush motor is higher than normal operation.

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