JP2023097457A - vacuum cleaner - Google Patents

Abstract

To provide a vacuum cleaner which can perform cleaning work of a dry type and a wet type depending on an attachment to be mounted.SOLUTION: A vacuum cleaner according to one embodiment of the invention includes: a cleaning liquid tank where a cleaning liquid is accumulated; a head part which has a flow passage connected to the cleaning liquid tank, and where one of plural kinds of attachments for housing a rotating brush is attachable and detachable; a control part which controls to be in a first state where the cleaning liquid is supplied to the attachment and a second state where the cleaning liquid is not supplied to the attachment depending on the kind of the attachment mounted on the head part: an air blower for suctioning objects from the attachment mounted on the head part; and a suctioned object tank where the object suctioned from the attachment is housed.SELECTED DRAWING: Figure 3

Description

The present invention relates to vacuum cleaners.

For example, Patent Literature 1 discloses a vacuum cleaner in which a part (cleaning member) in contact with the floor surface can be separated while leaving electrical components in a suction port body having a suction port for sucking dust. In the vacuum cleaner described above, the cleaning member is detachable from the mouthpiece main body, so that the lower cover provided with the cleaning member can be washed with water.

JP 2010-227468 A

However, the above electric vacuum cleaner can only perform dry cleaning work of sucking dust from the surface to be cleaned (floor surface) without using a cleaning liquid such as water or detergent. When the user desires a wet cleaning work to clean the , it is inconvenient to prepare a vacuum cleaner for the wet cleaning work in addition to the above-mentioned vacuum cleaner.

Accordingly, an object of one aspect of the present invention is to provide a vacuum cleaner that can perform dry or wet cleaning work depending on the attachment to be attached.

An electric vacuum cleaner according to an aspect of the present invention has a cleaning liquid tank in which cleaning liquid is stored, and a flow path connected to the cleaning liquid tank. and a first state in which the cleaning liquid is supplied to the attachment and a second state in which the cleaning liquid is not supplied to the attachment according to the type of the attachment attached to the head section. A controller for controlling any one of them, a blower for sucking an object from the attachment attached to the head, and an sucking object tank for storing the object sucked from the attachment.

It is a side schematic diagram which shows the outline|summary of a vacuum cleaner. It is a side schematic diagram which shows the mounting|wearing location of the head part and a wet attachment to a main-body part. It is an upper surface schematic diagram which shows a head part and a wet attachment. It is a side schematic diagram which shows the mounting|wearing location of a head part and a dry attachment to a main-body part. It is an upper surface schematic diagram which shows a head part and a dry attachment. It is a block diagram which shows the hardware constitutions of a cleaner main body.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings. In the present specification and drawings, the same or equivalent elements are denoted by the same reference numerals to omit redundant description, and elements that are not directly related to the present invention may be omitted from the drawings. Furthermore, the forms of the components shown in these embodiments are merely examples, and the present invention is not limited to these forms.

An outline of a vacuum cleaner 100 according to an aspect of the present invention will be described below with reference to FIG. FIG. 1 is a schematic side view showing an outline of a vacuum cleaner 100. FIG. Vacuum cleaner 100 is, for example, a vacuum cleaner having a stick-like appearance. The vacuum cleaner 100 can perform either dry cleaning work or wet cleaning work depending on the attached attachment. The dry cleaning work is a cleaning work in which dust on the surface S to be cleaned is scraped out with a rotating brush and the scraped dust is sucked together with air. The wet cleaning work is a cleaning work in which the surface S to be cleaned is washed with a rotating brush using a cleaning liquid, and the used cleaning liquid and dust remaining on the cleaned surface S are wiped off. In the following description, the head portion 250 side during cleaning by the vacuum cleaner 100 is defined as the rear side, and the attachment side is defined as the front side. Further, the side on which the cleaning device is placed on the surface S to be cleaned during cleaning is defined as the lower side, and the opposite side (handle 213 side) is defined as the upper side.

As shown in FIG. 1 , the vacuum cleaner 100 includes a cleaner body 200 and a wet attachment 300 that is attached to the cleaner body 200 . The wet attachment 300 is an attachment for wet cleaning work.

The cleaner main body 200 is the main body of the vacuum cleaner 100 . The cleaner main body 200 has a function of sucking an object and a function of supplying cleaning liquid to the wet attachment 300 . The cleaning liquid here is a liquid such as water or detergent. Objects here include dust, used cleaning liquid, and the like.

The cleaner body 200 has a frame 210 , an electric blower 220 , an aspirated material tank 230 , a cleaning liquid tank 240 and a head portion 250 . For convenience of explanation, the frame 210, the electric blower 220, the sucked material tank 230, and the cleaning liquid tank 240 of the cleaner body 200, excluding the head portion 250, are also collectively referred to as a body portion 200a (see FIG. 2).

The frame 210 has a body frame 211 extending like a stick and a bottom frame 212 formed at the lower end of the body frame 211 .

A handle 213 for gripping the cleaner body 200 is provided at the upper end of the body frame 211 . The handle 213 is inclined at a predetermined angle with respect to the extension direction of the body frame 211 . The handle 213 is provided with an operation section (not shown) for the user to operate the cleaner main body 200 . An electric blower 220 , an aspirate tank 230 and a cleaning liquid tank 240 are attached to one side (lower side) of the body frame 211 .

The bottom frame 212 is formed in a flat, substantially oval shape. The top surface of bottom frame 212 supports an aspirant tank 230 . A head portion 250 is configured to be attachable to the lower surface of the bottom frame 212 .

Electric blower 220 is arranged in a case attached to body frame 211 . The electric blower 220 is configured by, for example, a fan motor in which a motor and a fan are integrated. The electric blower 220 drives a fan and generates airflow by energizing the motor.

The suction substance tank 230 is detachably provided on the body frame 211 . The suction material tank 230 is arranged below the electric blower 220 on the body frame 211 . The aspirant tank 230 has an inlet 230a and an outlet 230b. An inflow port 230 a of the aspirant tank 230 is connected to a duct 333 of the wet attachment 300 described below through the bottom frame 212 . An outflow port 230b of the suction material tank 230 is connected to a suction port (not shown) of the electric blower 220 . This allows the aspirate tank 230 to accommodate the aspirated material from the wet attachment 300 . The aspirate tank 230 has a gas-liquid separation function of separating gas and liquid.

The cleaning liquid tank 240 is detachably provided on the body frame 211 . The cleaning liquid tank 240 is arranged above the electric blower 220 in the body frame 211 . The cleaning liquid tank 240 is a tank for storing cleaning liquid. The cleaning liquid is supplied to the wet attachment 300 and used for cleaning the surface S to be cleaned. The cleaning liquid in the cleaning liquid tank 240 is supplied to the wet attachment 300 through the channel C provided in the cleaner body 200 .

A case where the wet attachment 300 is attached to the head portion 250 will be described with reference to FIGS. 2 and 3. FIG. FIG. 2 is a schematic side view showing the locations where the head portion 250 and the wet attachment 300 are attached to the main body portion 200a. FIG. 3 is a schematic top view showing the head section 250 and the wet attachment 300. As shown in FIG. FIG. 2 omits illustration of the members of the main body 200a except for a part of the main body frame 211 and the bottom frame 212. As shown in FIG. In order to facilitate understanding, FIG. 2 shows the channel C for supplying the cleaning liquid, the internal structure of the bottom frame 212, and the internal structure of the first housing 310. As shown in FIG. In order to facilitate understanding, FIG. 3 illustrates the flow path C for supplying the cleaning liquid, the internal structure of the first housing 310, and the power transmission mechanism for transmitting power to the first rotating brush 320. there is

As shown in FIG. 2 , the head portion 250 includes a head body 260 that is arranged on the surface S to be cleaned during cleaning, and a joint portion 270 that is rotatably attached to the head body 260 .

A pair of wheels 261 are rotatably provided at the bottom rear portion of the head body 260 . A joint portion 270 is rotatably attached to the rear portion of the upper surface of the head body 260 . Specifically, the joint portion 270 is attached to the head main body 260 so as to be rotatable around a rotation axis whose axial direction is the left-right direction.

A joint portion 270 that constitutes the head portion 250 is attached to the bottom frame 212 . A mounting portion 212 a for mounting the upper end portion of the joint portion 270 is formed on the lower surface of the bottom frame 212 . By attaching the upper end portion of the joint portion 270 to the attachment portion 212a, the main body portion 200a is configured to be rotatable relative to the head portion 250. As shown in FIG.

A head main body 260 that constitutes the head section 250 is configured to be attachable/detachable with each of a plurality of types of attachments. The multiple types of attachments include the wet attachment 300, the dry attachment 400, and the like. The head body 260 has, for example, locking grooves for locking locking claws (not shown) that are commonly formed for each of a plurality of types of attachments. Thereby, each of a plurality of types of attachments can be attached to and detached from the head section 250 .

A head body 260 that constitutes the head portion 250 has a contact portion 262 that contacts a housing that accommodates a rotating brush included in each attachment when each attachment is attached. For example, in the case of the wet attachment 300, the contact portion 262 is a surface (the front surface in this embodiment) of the wet attachment 300 that contacts a first housing 310 described later.

As shown in FIG. 2, the wet attachment 300 includes a first housing 310, a first rotating brush 320 disposed in the first housing 310, and a cleaning surface provided adjacent to the first housing 310. and a cleaning member 330 for wiping away used cleaning fluid and dust remaining on S.

The first housing 310 is a housing that accommodates the first rotating brush 320 . The bottom of the first housing 310 is provided with an opening 310a for contacting the surface S to be cleaned with the first rotating brush 320 .

The first rotating brush 320 is arranged inside the first housing 310 . The first rotating brush 320 is arranged with the left-right direction as its axial direction. The first rotating brush 320 is rotated by power from a motor 290 (see FIG. 3), which will be described later, so that dust on the surface S to be cleaned can be scraped out. The first rotating brush 320 is supplied with cleaning liquid by a pump 263 (see FIG. 3), which will be described later, so that the cleaning surface S can be cleaned with the cleaning liquid.

The cleaning member 330 has, for example, a base member 331 , a pair of squeegees 332 attached to the base member 331 , and a duct 333 for connecting the base member 331 to the aspirant tank 230 .

The base member 331 is attached to the first housing 310 and supports a pair of squeegees 332 . The base member 331 is hollow and communicates with the space between the pair of squeegees 332 . The base member 331 is formed so that the width in the left-right direction increases toward the tip side (lower side).

A pair of squeegees 332 are arranged at the front end of the base member 331 with a space therebetween. A pair of squeegees 332 are formed by an elastic member. Of the pair of squeegees 332, the front squeegee 332a is a wiping squeegee and the rear squeegee 332b is a receiving squeegee.

The duct 333 is made of, for example, a flexible member. One end of duct 333 is attached to base member 331 . The other end of the duct 333 is attached to an attachment portion 212 d of the bottom frame 212 , which will be described later, so that the cleaning member 330 and the aspirate tank 230 communicate with each other.

The bottom frame 212 is provided with a through hole 212b penetrating through the upper surface and the lower surface. The upper surface of the bottom frame 212 has a mounting portion 212c for mounting the aspirant tank 230 thereon. When the aspirant tank 230 is attached to the attachment portion 212c, the aspirant tank 230 communicates with the through hole 212b. The lower surface of the bottom frame 212 has a mounting portion 212d for mounting the duct 333 thereon. When the other end of the duct 333 is attached to the attachment portion 212d, the duct 333 communicates with the through hole 212b. As described above, the aspirate tank 230 is attached to the upper surface of the bottom frame 212, and the cleaning member 330 (duct 333) is attached to the lower surface of the bottom frame 212, so that the cleaning member 330 can be removed through the through hole 212b. The space between the pair of squeegees 332 and the aspirant tank 230 communicate with each other.

Note that the mounting portion 212d is configured to be capable of mounting not only the duct 333 that constitutes the wet attachment 300, but also the ducts that constitute each attachment. In addition to the duct 333, the mounting portion 212d can mount, for example, a later-described duct 430 constituting a dry attachment 400 (see FIG. 4).

In the above configuration, when the head portion 250 and the wet attachment 300 are placed on the surface S to be cleaned, the front squeegees 332a constituting the pair of squeegees 332 are elastically deformed in an arc shape, and the inner surfaces of the squeegees 332a are elastically deformed. contact the surface S; By moving the electric vacuum cleaner 100 backward while maintaining this state, the cleaning liquid, dust, etc. adhering to the surface S to be cleaned can be wiped off. At this time, the rear squeegee 332 b constituting the pair of squeegees 332 receives dust, used cleaning liquid, etc. so as not to leak out from between the pair of squeegees 332 . By driving the electric blower 220 , the dust, used cleaning liquid, etc. positioned between the pair of squeegees 332 can be sucked and stored in the sucked material tank 230 .

A configuration for supplying the cleaning liquid in the cleaning liquid tank 240 to the wet attachment 300 will be described with reference to FIGS. 1 to 3. FIG.

As shown in FIG. 1, the cleaner body 200 has a channel C connected to the cleaning liquid tank 240 . A flow path C is formed from the frame 210 to the head portion 250 .

As shown in FIG. 2 , the channel C includes a channel C1 formed inside the frame 210 and a channel C2 formed inside the head portion 250 . Each of the flow path C1 and the flow path C2 is configured by arranging a tube inside each component, for example.

The upstream end of the channel C1 is connected to the cleaning liquid tank 240 when the cleaning liquid tank 240 is attached to the frame 210 (see FIG. 1). Further, when the joint portion 270 is attached to the attachment portion 212a, the downstream end of the flow path C1 and the upstream end of the flow path C2 are connected.

As shown in FIG. 3, the downstream end of the flow path C2 is a water sprinkling port 262a positioned at the contact portion 262 of the head body 260. As shown in FIG. In this embodiment, the contact portion 262 is provided with five sprinkling ports 262a arranged side by side in the left-right direction. Each water sprinkling port 262a is formed in a recessed portion 262b of the contact portion 262, for example. The downstream side of the flow path C2 branches into five flow paths toward each water sprinkling port 262a. A pump 263 for supplying the cleaning liquid from the cleaning liquid tank 240 toward each spray port 262a is provided on the upstream side of the branched portion of the flow path C2.

As shown in FIG. 3, the first housing 310 of the wet attachment 300 is provided with a communication port 310b that communicates the inside and the outside of the first housing 310 with each other. Five communication ports 310b are arranged side by side in the left-right direction so as to face each water sprinkling port 262a when the wet attachment 300 is attached to the head portion 250 . Each communication port 310 b is provided in the convex portion 310 c of the first housing 310 .

In the above configuration, when the wet attachment 300 is attached to the head portion 250, each concave portion 262b is fitted with the corresponding convex portion 310c, and each water sprinkling port 262a faces the corresponding communication port 310b. As a result, the channel C communicates with the interior of the first housing 310 , and the cleaning liquid can be supplied from the cleaning liquid tank 240 to the interior of the first housing 310 . Therefore, the cleaning liquid can be supplied to the first rotating brush 320 disposed inside the first housing 310 .

Sealing members are preferably provided at the upstream end of the flow path C1, the connecting portion between the flow paths C1 and C2, and the downstream end of the flow path C2. As a result, the connecting portions of the flow paths are sealed so as to be liquid-tight.

As shown in FIG. 3, the cleaner main body 200 has a detection section 280 that detects that a predetermined type of attachment has been attached to the head section 250 . A limit switch, for example, is used as the detector 280 . The detection portion 280 is provided in the detection concave portion 262 c of the contact portion 262 . A detection protrusion 412 (see FIG. 5) provided only for a predetermined type of attachment among a plurality of types of attachments is inserted into the detection recess 262c. When the detection protrusion 412 is inserted into the detection recess 262c, the cleaner main body 200 turns on the limit switch and detects that a predetermined type of attachment is attached. In this embodiment, the predetermined type of attachment is a dry attachment 400 (see FIG. 5). When the detection unit 280 detects that the dry attachment 400 is attached, the cleaner body 200 does not drive the pump 263, and when the detection unit 280 detects that the dry attachment 400 is not attached, the cleaner main body 200 switches to wet cleaning. Assuming that the attachment 300 is attached, it is configured to drive the pump 263 . A limit switch is used as the detector 280, but the present invention is not limited to this, and a magnetic sensor such as a Hall element may be used.

As shown in FIG. 2 , the detection part 280 is provided above the connecting part of the flow path C with the wet attachment 300 . The connecting portion of the flow path C with the wet attachment 300 refers to the water sprinkling port 262a located at the downstream end of the flow path C2. As a result, even if the cleaning liquid leaks from the connecting portion between the sprinkling port 262a and the communication port 310b, the cleaning liquid can be prevented from entering the detection recess 262c, so that the detection unit 280 can be prevented from malfunctioning.

A power transmission mechanism of the wet attachment 300 to the first rotating brush 320 will be described with reference to FIG.

The head portion 250 includes a motor 290 that is a driving portion for generating driving force, and a power transmission mechanism 291 for transmitting the driving force generated by the motor 290 . The power transmission mechanism 291 is a main body side power transmission mechanism.

The power transmission mechanism 291 includes a first pulley 291a fixed to the output shaft 290a of the motor 290, a transmission shaft 291b, a second pulley 291c fixed to the transmission shaft 291b, and a pulley 291c from the first pulley 291a to the second pulley 291c. It includes a belt 291d for transmitting power and a third pulley 291e fixed to the transmission shaft 291b. The size, number of teeth, etc. of the first pulley 291a and the second pulley 291c are set so that the rotation speed of the transmission shaft 291b is lower than the rotation speed of the output shaft 290a of the motor 290 .

The contact portion 262 is provided with an opening 262d for exposing a pulley (third pulley 291e in this embodiment) located downstream of the power transmission mechanism 291 in power transmission. A portion of the third pulley 291e protrudes outward (forward) from the opening 262d.

Wet attachment 300 includes a power transmission mechanism 340 that is coupled to first rotating brush 320 . The power transmission mechanism 340 is an attachment-side power transmission mechanism. The power transmission mechanism 340 includes a rotating shaft 340a to which the first rotating brush 320 is fixed, a fourth pulley 340b fixed to the rotating shaft 340a, and a bearing 340c that rotatably supports the first rotating brush 320.

The first housing 310 is provided with an opening 310d for exposing a pulley (fourth pulley 340b in this embodiment) located upstream of the power transmission mechanism 340 in power transmission. The fourth pulley 340b is provided at a position where it meshes with the third pulley 291e when the wet attachment 300 is attached to the head portion 250. As shown in FIG.

In the above configuration, when the wet attachment 300 is attached to the head portion 250, the third pulley 291e and the fourth pulley 340b are engaged to enable power transmission from the third pulley 291e to the fourth pulley 340b. Therefore, when the wet attachment 300 is attached to the head portion 250, the power transmission mechanism 291 on the main body side and the power transmission mechanism 340 on the attachment side are connected, thereby enabling power transmission from the motor 290 to the first rotating brush 320. there is Specifically, the driving force from the motor 290 is transmitted from the first pulley 291a to the second pulley 291c via the belt 291d, and the third pulley 291e arranged coaxially with the second pulley 291c and the fourth pulley 340b. is rotated, the first rotating brush 320 can be rotated. In this embodiment, the size, number of teeth, etc. of the third pulley 291e and the fourth pulley 340b are set so that the rotation speed of the rotation shaft 340a is slower than that of the transmission shaft 291b.

In this embodiment, each pulley is a toothed pulley (gear), but is not limited to this, and may be, for example, a toothless pulley (roller). The power transmission mechanism 291 on the main body side has an intermediate transmission mechanism (transmission shaft 291b, second pulley 291c and third pulley 291e) for transmitting power from the first pulley 291a to the rotating shaft 340a. , The power transmission mechanism 340 on the attachment side may have the intermediate transmission mechanism described above. In this case, the first pulley 291a and the second pulley 291c may be arranged so as to engage directly without using the belt 291d.

Moreover, although each pulley is a spur gear in this embodiment, it is not limited to this, and may be, for example, a bevel gear. In this case, the output shaft 290a of the motor 290 and the first transmission shaft on the body side perpendicular to the output shaft 290a are connected via a bevel gear, and the rotation shaft 340a of the first rotating brush 320 and the rotation shaft 340a are connected. A configuration may be adopted in which the orthogonal second transmission shaft on the attachment side is connected via a bevel gear, and the first transmission shaft and the second transmission shaft are connected via a coupling.

A case where the dry attachment 400 is attached to the head portion 250 will be described with reference to FIGS. 4 and 5. FIG. FIG. 4 is a schematic side view showing the locations where the head portion 250 and the dry attachment 400 are attached to the main body portion 200a. FIG. 5 is a schematic top view showing the head section 250 and the dry attachment 400. As shown in FIG. In FIG. 4, members of the body portion 200a other than a portion of the body frame 211 and the bottom frame 212 are omitted. In order to facilitate understanding, FIG. 4 shows the channel C for supplying the cleaning liquid, the internal structure of the bottom frame 212, and the internal structure of the second housing 410. As shown in FIG. In order to facilitate understanding, FIG. 5 illustrates the flow path C for supplying the cleaning liquid, the internal structure of the second housing 410, and the power transmission mechanism for transmitting power to the second rotating brush 420. there is In the following, description overlapping with the configuration shown in FIGS. 1 to 3 will be omitted.

As shown in FIGS. 4 and 5 , the dry attachment 400 includes a second housing 410 , a second rotating brush 420 disposed on the second housing 410 , and a rotary brush 420 for connecting the second housing 410 to the aspirant tank 230 . A duct 430 and a power transmission mechanism 440 connected to the second rotating brush 420 are provided. The power transmission mechanism 440 is an attachment-side power transmission mechanism. The dry attachment 400 is an attachment for dry cleaning work.

The second housing 410 is a housing that accommodates the second rotating brush 420 . The bottom of the second housing 410 is provided with an opening 410a for contacting the surface S to be cleaned with the second rotating brush 420 .

The second rotating brush 420 is arranged inside the second housing 410 . The second rotating brush 420 is arranged with the left-right direction as its axial direction. The second rotating brush 420 is rotated by power from the motor 290 (see FIG. 5), thereby making it possible to scrape the dust off the surface S to be cleaned.

Duct 430 is formed of, for example, a flexible member. One end of duct 430 is attached to second housing 410 . The other end of the duct 430 is attached to the attachment portion 212d of the bottom frame 212, thereby communicating the second housing 410 and the aspirant tank 230 via the through hole 212b.

The power transmission mechanism 440 includes a rotating shaft 440a to which the second rotating brush 420 is fixed, a fourth pulley 440b fixed to the rotating shaft 440a, and a bearing 440c that rotatably supports the second rotating brush 420.

The second housing 410 is provided with an opening 410d for exposing a pulley (fourth pulley 440b in this embodiment) located upstream of the power transmission mechanism 440 in power transmission. The fourth pulley 440b is provided at a position where it meshes with the third pulley 291e when the dry attachment 400 is attached to the head portion 250. As shown in FIG. As a result, when the dry attachment 400 is attached to the head portion 250, the power transmission mechanism 291 on the main body side and the power transmission mechanism 440 on the attachment side are connected, enabling power transmission from the motor 290 to the second rotating brush 420. to

In the above configuration, the dry attachment 400 scrapes dust from the surface S to be cleaned by rotating the second rotating brush 420 , sucks the scraped dust together with air, and stores the dust in the sucked matter tank 230 . be able to.

As shown in FIGS. 4 and 5, the dry attachment 400 has a water stop valve 411 that closes the flow path C when attached to the head portion 250 . Five water shut-off valves 411 are provided corresponding to each water sprinkling port 262a. The water stop valve 411 is a valve that closes the water sprinkling port 262a located at the end of the channel C. As shown in FIG. Accordingly, communication between the flow path C and the inside of the second housing 410 can be prevented. Therefore, it is possible to prevent the cleaning liquid from being supplied to the second rotating brush 420 constituting the dry attachment 400 .

The dry attachment 400 also has a detection protrusion 412 that is inserted into the detection recess 262 c of the contact portion 262 . The detection protrusion 412 is provided to protrude rearward from the second housing 410 . When the dry attachment 400 is attached to the head portion 250, the detection protrusion 412 is inserted into the detection recess 262c, the limit switch constituting the detection portion 280 is turned on, and a predetermined type of attachment (dry attachment 400) is attached. detect that In vacuum cleaner 100, when the limit switch is turned on, pump 263 is not driven even if the user turns on the operation switch of vacuum cleaner 100 to start cleaning. Accordingly, it is possible to prevent the cleaning liquid from being supplied to the second rotating brush 420 that constitutes the dry attachment 400 .

Further, in vacuum cleaner 100, when the limit switch is off, it is detected that dry attachment 400 is not attached. In this case, vacuum cleaner 100 drives pump 263 assuming that wet attachment 300 is attached. Thereby, the cleaning liquid can be supplied to the first rotating brush 320 that constitutes the wet attachment 300 .

In the above configuration, vacuum cleaner 100 determines the type of attachment to be attached by turning on/off a limit switch that constitutes detector 280 . In addition, when the limit switch is turned off, since a state in which no attachment is attached to the head portion 250 is included, even when no attachment is attached to the head portion 250, the water from each sprinkling port 262a can be discharged. Cleaning liquid may be supplied. Therefore, it is preferable to provide an attachment detection section (not shown) for detecting that any attachment is attached to the head section 250 . An attachment detector (not shown) is provided at the contact portion 262 using a magnetic sensor such as a limit switch or Hall element, for example. As a result, by using both the attachment detection unit (not shown) and the detection unit 280, it is possible to detect whether the head unit 250 is attached with the attachment or when the wet attachment 300 is attached to the head unit 250. can be determined, it is possible to prevent the cleaning liquid from being supplied when the attachment is not attached to the head section 250 .

Further, in the present embodiment, the detection unit 280 detects whether or not the dry attachment 400 is attached. good too. In this case, instead of the dry attachment 400, the wet attachment 300 may have a detection protrusion 412 that can be inserted into the detection recess 262c. In such a configuration, when the wet attachment 300 is attached to the head portion 250, the limit switch is turned on and the pump 263 is driven. On the other hand, when the wet attachment 300 is not attached to the head portion 250, the limit switch is turned off and the pump 263 is not driven. As a result, it is possible to prevent the cleaning liquid from being supplied even when the attachment is not attached to the head section 250 .

Further, it may be configured to detect whether or not each of the wet attachment 300 and the dry attachment 400 is attached. In this case, a detection concave portion and a detection convex portion corresponding to each attachment may be provided, and a limit switch may be provided in each detection concave portion.

The cleaning direction (advancing direction) of the cleaner main body 200 when the wet attachment 300 is attached is opposite to the cleaning direction (advancing direction) of the cleaner main body 200 when the dry attachment 400 is attached. . Specifically, the cleaning direction of the cleaner body 200 when the wet attachment 300 is attached is the front-to-rear direction D1 (see FIG. 1), and the cleaner body 200 when the dry attachment 400 is attached. is the direction D2 (see FIG. 1) from rear to front. Therefore, the direction of rotation of the rotating brush is changed between when the wet attachment 300 is attached and when the dry attachment 400 is attached. For example, the rotation direction of the rotating brush may be changed by configuring the motor 290 to be rotatable forward and backward, and changing the rotation direction of the motor 290 according to the attached attachment. Further, by further adding an intermediate pulley that meshes with the fourth pulley to either the power transmission mechanism 340 of the wet attachment 300 or the power transmission mechanism 440 of the dry attachment 400, the rotation direction of the motor 290 can be changed without changing the rotation direction. , the direction of rotation of the rotating brush may be changed.

The hardware configuration of the cleaner main body 200 will be described with reference to FIG. FIG. 6 is a block diagram showing the hardware configuration of the cleaner main body 200. As shown in FIG.

Vacuum cleaner main body 200 includes control section 500 , storage section 510 , electric blower 220 , pump 263 , detection section 280 and motor 290 .

The control unit 500 is composed of, for example, a CPU (Central Processing Unit). The control unit 500 controls the cleaner body 200 by reading and executing programs and data stored in the storage unit 510 .

The storage unit 510 is, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), or the like, and stores programs executed by the control unit 500, various parameters used by the control unit 500, and the like.

The control unit 500 performs control between a first state in which the cleaning liquid is supplied to the attachment and a second state in which the cleaning liquid is not supplied to the attachment, depending on the type of attachment attached to the head section 250 . In this embodiment, the control unit 500 controls to the first state when the wet attachment 300 is attached to the head unit 250, and controls to the second state when the dry attachment 400 is attached to the head unit 250. there is

In the first state, the pump 263 is driven. Also, in the first state, the electric blower 220 and the motor 290 are driven. Specifically, in the first state, the pump 263 is driven to supply the cleaning liquid to the first rotating brush 320, and the motor 290 is driven to rotate the first rotating brush 320, thereby using the cleaning liquid to The cleaning surface S can be cleaned. By driving the electric blower 220 , the cleaning member 330 wipes off the cleaning liquid and dust remaining on the surface S to be cleaned and sucks them into the sucked object tank 230 .

In the first state, when the wet attachment 300 is attached to the head portion 250, the controller 500 drives the pump 263 at least after the operation of the cleaner main body 200 is started. For example, the control unit 500 may drive the pump 263 after driving the motor 290, or may drive the pump 263 at the same timing as the driving of the motor 290. Before driving the motor 290, Pump 263 may be driven.

In the second state, driving of the pump 263 is stopped. Also, in the second state, the electric blower 220 and the motor 290 are driven. Specifically, in the second state, by driving the motor 290 to rotate the second rotating brush 420 and driving the electric blower 220, the dust on the surface to be cleaned S is scraped out, and the scraped-out dust is removed by the air. together with the aspirate tank 230.

The control unit 500 performs control between the first state and the second state based on the detection result of the detection unit 280 . In this embodiment, the detection section 280 detects whether the dry attachment 400 is attached to the head section 250 or not. When the control unit 500 detects that the dry attachment 400 is attached to the head unit 250, the control unit 500 controls to the second state. When the control unit 500 detects that the dry attachment 400 is not attached to the head unit 250, the control unit 500 assumes that the wet attachment 300 is attached to the head unit 250, and controls to the first state.

In this embodiment, the detection unit 280 detects only whether or not the dry attachment 400 is attached, but is not limited to this, and for example, detects whether or not the wet attachment 300 and the dry attachment 400 are respectively attached. You may

Note that the head unit 250 is not limited to an attachment having a rotating brush, and may be detachably attached to an attachment having a rotating mop. In the wet attachment 300, the cleaning liquid is supplied to the first rotating brush 320 through the communication port 310b of the first housing 310. However, the cleaning liquid is not limited to this, and for example, the cleaning liquid is directly supplied to the surface S to be cleaned. It may be configured to be Moreover, although the attachment is configured to be attached to the front portion of the head portion 250, it is not limited to this, and may be configured to be attached to the rear portion or the side portion of the head portion 250, for example.

In the above configuration, the electric vacuum cleaner 100 has a cleaning liquid tank 240 in which cleaning liquid is stored, and a flow path C connected to the cleaning liquid tank 240, and one of a plurality of types of attachments that accommodate rotating brushes. A head portion 250 to which an attachment can be attached and detached, and a first state in which cleaning liquid is supplied to the attachment and a second state in which cleaning liquid is not supplied to the attachment, depending on the type of attachment attached to the head portion 250. A control unit 500 for control, an electric blower 220 for sucking an object from an attachment attached to the head unit 250, and an sucking object tank 230 for storing the object sucked from the attachment are provided.

As described above, it is possible to switch between the state of supplying the cleaning liquid and the state of not supplying the cleaning liquid according to the type of attachment attached to the head unit 250. Cleaning work can be done. Therefore, different cleaning operations can be performed simply by replacing the attachment, which improves convenience. It is also space-saving from the viewpoint of storage space.

The multiple types of attachments include wet attachments 300 . The wet attachment 300 includes a first rotating brush 320, a first housing 310 that houses the first rotating brush 320, a cleaning member 330 that is provided adjacent to the first housing 310 and wipes off the cleaning liquid from the cleaning surface S, including. When the attachment attached to the head part 250 is the wet attachment 300 , the control part 500 controls the first state to supply the cleaning liquid to the inside of the first housing 310 . Accordingly, in the case of an attachment that requires a cleaning liquid such as water or detergent, the cleaning liquid can be supplied to the inside of the first housing 310 .

When the wet attachment 300 is attached to the head portion 250 , the flow path C communicates with the inside of the first housing 310 . As a result, the washing liquid can be supplied to the inside of the first housing 310 simply by attaching the wet attachment 300 to the head portion 250 .

Multiple types of attachments include dry attachments 400 . Dry attachment 400 includes a second rotating brush 420 and a second housing 410 that houses second rotating brush 420 . When the attachment attached to the head part 250 is the dry attachment 400 , the control part 500 controls the second state in which the cleaning liquid is not supplied to the inside of the second housing 410 . Accordingly, in the case of an attachment that does not require a cleaning liquid such as water or detergent, the cleaning liquid is not supplied to the inside of the second housing 410 .

The dry attachment 400 includes a water stop valve 411 that closes the flow path C when attached to the head portion 250 . This can prevent the cleaning liquid from being supplied to the inside of the second housing 410 in the case of an attachment that does not require cleaning liquid such as water or detergent.

It further includes a detection unit 280 that detects that a predetermined type of attachment (dry attachment 400) is attached to the head unit 250. FIG. The control unit 500 performs control between the first state and the second state based on the detection result of the detection unit 280 . Accordingly, it is possible to automatically switch between a state of supplying the cleaning liquid and a state of not supplying the cleaning liquid according to the attached attachment.

The detection unit 280 is provided above the connecting portion (water sprinkling port 262a) with the attachment in the flow path C. As shown in FIG. As a result, even if the cleaning liquid leaks out from the sprinkling port 262a, it is possible to prevent the cleaning liquid from entering the detection section 280, so that the detection section 280 can be prevented from malfunctioning.

The head portion 250 includes a motor 290 for generating driving force and a main body side power transmission mechanism 291 for transmitting the driving force generated by the motor 290 . The attachment includes an attachment-side power transmission mechanism 340 (or attachment-side power transmission mechanism 440) coupled to the first rotating brush 320 (or the second rotating brush 420). When the attachment is attached to the head portion 250, the power transmission mechanism 291 on the main body side and the power transmission mechanism 340 on the attachment side (or the power transmission mechanism 440 on the attachment side) are connected, and the motor 290 rotates the first rotating brush 320 ( Or it enables power transmission to the second rotating brush 420). As a result, simply by attaching the attachment to the head portion 250, power can be transmitted to the first rotating brush 320 (or the second rotating brush 420), thereby improving convenience.

Each of the multiple types of attachments further includes a duct 333 (or duct 430 ) for connecting to the aspirant tank 230 .

The present invention is not limited to the above embodiments, and various modifications are possible. For example, it can be replaced with a configuration that is substantially the same as the configuration shown in the above embodiment, a configuration that produces the same effects, or a configuration that can achieve the same purpose.

100 Vacuum Cleaner 200 Vacuum Cleaner Main Body 220 Electric Blower 230 Sucked Object Tank 240 Cleaning Liquid Tank 250 Head Part 262a Sprinkler Port 280 Detecting Part 290 Motor 291 Main Body Side Power Transmission Mechanism 300 Wet Attachment 310 first housing 320 first rotating brush 330 cleaning member 333 duct 340 attachment side power transmission mechanism 400 dry attachment 410 second housing 411 water stop valve 420 second rotating brush 430 duct 440 power transmission mechanism on the attachment side, 500 control section, C flow path

Claims (9)

a cleaning liquid tank in which cleaning liquid is stored;
a head unit having a flow path connected to the cleaning liquid tank and capable of attaching and detaching one of a plurality of types of attachments containing a rotating brush;
a control unit that controls either a first state in which the cleaning liquid is supplied to the attachment or a second state in which the cleaning liquid is not supplied to the attachment according to the type of the attachment attached to the head section; ,
a blower for sucking an object from the attachment attached to the head;
a vacuum cleaner comprising an aspirant tank in which the object sucked from the attachment is stored. The plurality of types of attachments include wet attachments,
The wet attachment is
a first rotating brush provided as the rotating brush;
a first housing that houses the first rotating brush;
a cleaning member provided adjacent to the first housing for wiping the cleaning liquid from the surface to be cleaned;
2. The electric vacuum cleaner according to claim 1, wherein, when the attachment attached to the head portion is the wet attachment, the controller controls the first state to supply the cleaning liquid into the first housing. machine. 3. The vacuum cleaner according to claim 2, wherein the flow path communicates with the inside of the first housing when the wet attachment is attached to the head portion. The plurality of types of attachments include dry attachments,
The dry attachment is
a second rotating brush provided as the rotating brush;
a second housing that houses the second rotating brush;
When the attachment attached to the head portion is the dry attachment, the control portion controls the second state in which the cleaning liquid is not supplied to the inside of the second housing. The vacuum cleaner according to any one of items 1 and 2. 5. The electric vacuum cleaner according to claim 4, wherein the dry attachment includes a water stop valve that closes the flow path when attached to the head portion. further comprising a detection unit that detects that the attachment of a predetermined type is attached to the head unit,
The electric vacuum cleaner according to any one of claims 1 to 5, wherein the control section controls the first state or the second state based on the detection result of the detection section. The electric vacuum cleaner according to claim 6, wherein the detection section is provided above a connection section with the attachment in the flow path. The head section
a driving unit for generating a driving force;
a body-side power transmission mechanism for transmitting the driving force generated by the drive unit,
The attachment is
including an attachment-side power transmission mechanism connected to the rotating brush,
When the attachment is attached to the head portion, the power transmission mechanism on the main body side and the power transmission mechanism on the attachment side are connected to each other, so that power can be transmitted from the driving portion to the rotating brush. Item 7. The vacuum cleaner according to any one of Item 7. The electric vacuum cleaner according to any one of claims 1 to 8, wherein each of the plurality of types of attachments further includes a duct for connecting to the aspirant tank.

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