JP2021137586A - Suction port body and vacuum cleaner - Google Patents

Abstract

To provide a suction port body capable of suppressing winding of filamentous dust to a rotary cleaning body, and if the filamentous dust is wound to the rotary cleaning body, capable of allowing a user to visually recognize the state, and a vacuum cleaner.SOLUTION: A suction port body 16 comprises: a suction port body 31 including a suction port 27 opened to a bottom face 31a, and a suction chamber 45 connected to the suction port 27; and a plurality of rotary cleaning bodies 28 including a front cleaning body 28F which is rotatably supported to the suction port body 31, and a rear cleaning body 28R rotatably supported to the suction port body 31, and holding the suction port 27 between the front cleaning body 28F and the rear cleaning body 28R; and at least one motor 29 for generating drive force for the plurality of rotary cleaning bodies 28. The suction port body 31 has at least one transmission wall 47 for covering at least a part of outer peripheral faces of the respective rotary cleaning bodies 28, in a visually recognizable manner.SELECTED DRAWING: Figure 8

Description

Embodiments of the present invention relate to suction ports and vacuum cleaners.

A suction port body having a transparent or translucent housing in which a portion forming a wall surface on both the bottom surface side and the top surface side is integrally molded is known.

This conventional suction port body is arranged in a suction chamber in which the rotating brush has a suction port. Therefore, in the conventional suction port body, the thread-like dust sucked from the suction port tends to be wrapped around the rotating brush in the process of being sucked into the suction chamber from the suction port.

JP-A-2018-075187

The conventional suction port body is arranged in a suction chamber in which the rotating brush has a suction port. Therefore, in the conventional suction port body, the thread-like dust sucked from the suction port tends to be wrapped around the rotating brush in the process of being sucked into the suction chamber from the suction port. However, since the conventional suction port body has a transparent or translucent housing, it is possible to easily know when thread-like dust is wrapped around the rotating brush.

Therefore, according to the present invention, it is possible to suppress the wrapping of thread-like dust around the rotary cleaning body, and if the thread-like dust is wrapped around the rotary cleaning body, it is possible to easily know this. , And propose a vacuum cleaner.

In order to solve the above problems, the suction port body according to the embodiment of the present invention has a suction port body having a suction port opening toward the bottom surface and a suction chamber connected to the suction port, and a suction port body rotating around the suction port body. The suction body includes a first rotation cleaning body that is rotatably supported and a second rotation cleaning body that is rotatably supported by the suction port body, and is sucked between the first rotation cleaning body and the second rotation cleaning body. A plurality of rotary cleaning bodies that sandwich the mouth and at least one drive source that generates driving force of the plurality of rotary cleaning bodies are provided, and the suction port main body is at least one of the outer peripheral surfaces of the respective rotary cleaning bodies. It is provided with at least one transparent wall that visually covers the portion.

Further, the vacuum cleaner according to the embodiment of the present invention includes a vacuum cleaner main body, an electric blower housed in the vacuum cleaner main body to generate negative pressure, and a suction port body fluidly connected to the electric blower. And have.

The perspective view of the vacuum cleaner which concerns on embodiment of this invention. The perspective view which shows the suction port body which concerns on embodiment of this invention from the right front. The plan view of the suction port body which concerns on embodiment of this invention. The plan view of the suction port body which concerns on embodiment of this invention. The bottom view of the suction port body which concerns on embodiment of this invention. A perspective view of a suction port body according to an embodiment of the present invention as viewed from below. The vertical sectional view of the suction port body which concerns on embodiment of this invention. The vertical sectional view of the suction port body which concerns on embodiment of this invention. The control block diagram of the suction port body which concerns on embodiment of this invention.

Embodiments of the suction port body and the vacuum cleaner according to the present invention will be described with reference to FIGS. 1 to 9.

FIG. 1 is a perspective view of the vacuum cleaner according to the embodiment of the present invention.

As shown in FIG. 1, the vacuum cleaner 1 according to the present embodiment is, for example, a stick type. The vacuum cleaner 1 has a vacuum cleaner main body 12 which has a handle 11 and can be operated by hand, and a vacuum cleaner main body 12 Detachable secondary battery 13 (also called storage battery, rechargeable battery, and rechargeable battery), extension tube 15 connected to the vacuum cleaner body 12, and suction port 16 connected to the extension tube 15. It has.

The vacuum cleaner 1 may be a canister type, an upright type, or a handy type. The vacuum cleaner 1 may be a cordless type having a secondary battery 13 as a power source, or a wired type that obtains electric power from a commercial AC power source via a power cord.

The vacuum cleaner main body 12 includes a main body case 17 having a handle 11, an electric blower 18 housed in the main body case 17 to generate a suction negative pressure, and a dust separation / dust collecting unit 19 detachably provided in the main body case 17. It mainly includes a main body control unit 21 that controls the electric blower 18.

The vacuum cleaner main body 12 drives the electric blower 18 by the electric power stored in the secondary battery 13, and causes the negative pressure generated by the drive of the electric blower 18 to act on the extension pipe 15. The vacuum cleaner 1 sucks dust-containing air (hereinafter, referred to as “dust-containing air”) from the floor surface through the suction port body 16 and the extension pipe 15, separates the dust from the dust-containing air, and after the separation. Dust is collected and accumulated, and the separated air is exhausted.

The main body case 17 includes a cylindrical front half portion 17a arranged on the extension line of the extension pipe 15 in a side view, and a rear portion 17b that bends from the front half portion 17a and gradually separates from the extension line of the extension pipe 15. ing. A dust separation / dust collection unit 19 is provided above the front half portion 17a of the main body case 17. The latter half 17b of the main body case 17 extends rearward in a used state (FIG. 2) in which the suction port body 16 is arranged on the floor.

A main body connection port 23 is provided on the front portion of the main body case 17.

The main body connection port 23 is a joint to which the extension pipe 15 can be attached and detached. The main body connection port 23 projects toward the front from the cylindrical front half portion 17a of the main body case 17. The main body connection port 23 is a fluid inlet of the vacuum cleaner main body 12, and fluidly connects the extension pipe 15 and the dust separation / dust collection unit 19. By removing the extension pipe 15 from the vacuum cleaner main body 12, the main body connection port 23 also functions as a suction port when the vacuum cleaner main body 12 is used alone.

The handle 11 is integrally provided with the main body case 17. The handle 11 is a portion that the user grips by hand in order to clean the floor surface with the vacuum cleaner 1. The handle 11 is arched from the vicinity of the rear end portion of the dust separation / dust collecting portion 19 to the rear end portion of the main body case 17. Further, the handles 11 are arranged so as to intersect with each other on the extension line of the extension pipe 15 center line.

In the vicinity of the handle 11, an input unit 26 is provided so as to be arranged within a range in which the user holding the handle 11 can move his / her fingers.

The input unit 26 performs an operation start switch 26a that accepts the operation start operation of the electric blower 18, an operation stop switch 26b that accepts the operation stop operation of the electric blower 18, and a start operation and a stop operation of power supply to the suction port body 16. It is equipped with a brush switch 26c for receiving. The operation start switch 26a and the operation stop switch 26b are electrically connected to the main body control unit 21. The user of the vacuum cleaner 1 can selectively select the operation mode of the electric blower 18 by operating the input unit 26. The operation start switch 26a also functions as an operation mode changeover switch during the operation of the electric blower 18. In this case, the main body control unit 21 switches the operation mode in the order of strong → medium → weak → strong → medium → weak → ... each time the operation signal is received from the operation start switch 26a. The input unit 26 may individually include a strong operation switch (not shown), a medium operation switch (not shown), and a weak operation switch (not shown) instead of the operation start switch 26a.

The dust separation / dust collecting unit 19 is arranged on the upper surface side of the vacuum cleaner main body 12 and can be attached to and detached from the vacuum cleaner main body 12. The dust separation / dust collection unit 19 separates dust from the dust-containing air flowing into the vacuum cleaner main body 12, collects and accumulates the dust, and sends clean air from which the dust has been removed to the electric blower 18. The dust separation / dust collection unit 19 may be a centrifugal separation method in which the dust and air are centrifugally separated by utilizing the difference in mass between the dust and air sucked by the vacuum cleaner 1, or the dust-containing air may be separated into dust. It may be a filtration separation method having a filter for filtering out.

The electric blower 18 sucks air from the dust separation / dust collecting unit 19 to generate a negative pressure (suction negative pressure).

The main body control unit 21 includes a microprocessor and a storage device that stores various arithmetic programs and parameters executed by the microprocessor. The storage device stores various settings (arguments) related to a plurality of preset operation modes. The plurality of operating modes are associated with the output of the electric blower 18. Different input values (input value of the electric blower 18 and current target value flowing through the electric blower 18) are set in each operation mode. Each operation mode is associated with an operation input received by the input unit 26. The main body control unit 21 selectively selects an arbitrary operation mode corresponding to the operation input to the input unit 26 from a plurality of preset operation modes. Further, the main body control unit 21 reads the selected operation mode setting from the storage unit, and operates the electric blower 18 according to the read operation mode setting.

The secondary battery 13 stores the electric power consumed by the electric blower 18 and the main body control unit 21. The secondary battery 13 may be fixed to the main body case 17 or may be detachable from the main body case 17. In other words, the vacuum cleaner 1 may or may not be used by appropriately exchanging a plurality of secondary batteries 13. When the charge rate of the secondary battery 13 detachably attached to the vacuum cleaner 1 drops, the secondary battery 13 is replaced with a charged secondary battery 13 to replace the secondary battery 13 with the charged secondary battery 13. Can continue to operate.

The extension pipe 15 and the suction port 16 suck dust on the floor surface together with air by the negative pressure acting from the electric blower 18 and guide the dust to the vacuum cleaner main body 12.

The extension pipe 15 is fluidly connected to the suction side of the electric blower 18 via the main body connection port 23 of the main body case 17 and the dust separation / dust collection unit 19. The extension pipe 15 has a length that substantially reaches the floor surface in a state where the user holds the handle 11 of the vacuum cleaner main body 12. At one end of the extension pipe 15, a joint structure that can be attached to and detached from the main body connection port 23 of the vacuum cleaner main body 12 is provided. At the other end of the extension pipe 15, a joint structure is provided so that the suction port body 16 of the vacuum cleaner body 12 can be attached and detached. The extension tube 15 may or may not be stretchable.

The suction port body 16 is movable or slidable on a floor surface such as a wooden floor or a carpet, and has a suction port 27 on a bottom surface facing the floor surface in a running state or a sliding state. Further, the suction port body 16 includes a rotatable rotary cleaning body 28 and an electric motor 29 as a drive source for driving the rotary cleaning body 28. One end of the suction port body 16 is provided with a detachable joint structure at the other end of the extension pipe 15. The suction port body 16 is fluidly connected to the suction side of the electric blower 18 via an extension pipe 15. The suction port body 16, the extension pipe 15, and the dust separation / dust collecting unit 19 are suction air passages from the electric blower 18 to the suction port 27.

The vacuum cleaner 1 starts the electric blower 18 when the operation start switch 26a is operated. For example, in the vacuum cleaner 1, when the operation start switch 26a is operated while the electric blower 18 is stopped, the electric blower 18 is first started in the strong operation mode, and then the operation start switch 26a is operated again. The operation mode of the electric blower 18 is changed to the medium operation mode, and when the operation start switch 26a is operated three times, the operation mode of the electric blower 18 is changed to the weak operation mode, and so on. The strong operation mode, the medium operation mode, and the weak operation mode are a plurality of preset operation modes. The input value of the electric blower 18 in the strong operation mode is the largest, and the input value of the electric blower 18 in the weak operation mode is the smallest. The started electric blower 18 sucks air from the dust separation / dust collection unit 19 and makes the inside of the dust separation / dust collection unit 19 a negative pressure.

The negative pressure in the dust separation / dust collecting unit 19 sequentially passes through the main body connection port 23, the extension pipe 15, and the suction port body 16 and acts on the suction port 27. The vacuum cleaner 1 cleans the surface to be cleaned by sucking dust on the surface to be cleaned together with air by the negative pressure acting on the suction port 27. The dust separation / dust collection unit 19 separates and accumulates dust from the dust-containing air sucked into the vacuum cleaner 1, while sending the air separated from the dust-containing air to the electric blower 18. The electric blower 18 exhausts the air sucked from the dust separation / dust collection unit 19 to the outside of the vacuum cleaner main body 12.

Next, the suction port body 16 will be described in detail.

FIG. 2 is a perspective view showing the suction port body according to the embodiment of the present invention from the front right.

As shown in FIG. 2, the suction port body 16 according to the present embodiment includes a suction port main body 31 having a substantially rectangular parallelepiped shape, and a connecting pipe 32 provided at the rear portion of the suction port main body 31.

The front / rear, left / right, and top / bottom of the suction port body 16 will be described with reference to the user of the vacuum cleaner 1. The direction of the solid line arrow X in FIG. 2 is the forward or forward direction of the suction port body 16, and the opposite direction is the backward or backward direction. The direction of the solid arrow Y in FIG. 2 is to the left of the suction port body 16, and the opposite direction is to the right. Further, the direction of the solid line arrow Z in FIG. 2 is above the suction port body 16, and the opposite direction is downward.

The shape of the suction port main body 31 in a plan view is a rectangular shape having a short side in the front-rear direction and a long side in the left-right direction. That is, the dimension in the left-right direction of the suction port main body 31, that is, the width dimension is larger than the dimension in the front-rear direction of the suction port main body 31, that is, the depth dimension. The suction port main body 31 includes a lower case 35 and an upper case 36 that covers the lower case 35.

The connection pipe 32 is provided at the rear portion of the suction port main body 31 and at a substantially central portion in the width direction. The connection pipe 32 includes a rotary connection pipe 38 that can rotate with respect to the suction port main body 31, and a swing connection pipe 39 that can swing with respect to the rotary connection pipe 38.

The rotary connection pipe 38 rotates around a center line (a line segment corresponding to the X-axis or a line segment parallel to the X-axis) extending in the front-rear direction of the suction port body 16. This center line divides the suction port main body 31 into left and right.

The swing connecting pipe 39 swings around a line segment orthogonal to the rotation center line of the rotary connecting pipe 38 or a line segment parallel to this line segment. The free end of the swing connecting pipe 39 is a joint that can be attached to and detached from the free end of the extension pipe 15.

3 and 4 are plan views of the suction port body according to the embodiment of the present invention.

FIG. 5 is a bottom view of the suction port body according to the embodiment of the present invention.

FIG. 6 is a perspective view of the suction port body according to the embodiment of the present invention as viewed from below.

FIG. 7 is a vertical cross-sectional view of the suction port body according to the embodiment of the present invention in the line VII-VII of FIG.

FIG. 8 is a vertical cross-sectional view of the suction port according to the embodiment of the present invention on the line VIII-VIII of FIG.

In FIG. 4, the upper case 36 is removed.

As shown in FIGS. 3 to 7, the suction port body 16 according to the present embodiment is housed in the suction port main body 31, the rotary cleaning body 28 rotatably supported by the suction port main body 31, and the suction port main body 31. The electric motor 29 as a driving source for generating the rotational driving force of the rotary cleaning body 28, the power transmission mechanism 41 for transmitting the driving force from the electric motor 29 to the rotary cleaning body 28, and the suction port body for controlling the operation of the electric motor 29. It includes a control unit 42.

Further, the suction port main body 31 has a suction port 27 that opens toward the bottom surface 31a, a suction chamber 45 that is connected to the suction port 27, and a cleaning body chamber 46 that houses the rotary cleaning body 28.

Further, the suction port main body 31 is provided with a transmission wall 47 that partitions a part of the cleaning body chamber 46 and visually covers at least a part of the outer peripheral surface of the rotary cleaning body 28.

The cleaning body chamber 46 is partitioned outside the suction chamber 45. The cleaning body chamber 46 is open toward the bottom surface of the suction port main body 31.

The suction chamber 45 is centered on a lower case 35, an air passage cover 48 that is housed inside the upper case 36 and covers a part of the lower case 35, and a suction port 27 that is wide in the left-right direction of the suction port main body 31. It is partitioned by an air passage narrowing body 49 that squeezes toward the portion. In other words, the lower case 35, the air passage cover 48, and the air passage constrictor 49 cooperate to partition the suction chamber 45.

The bottom surface 31a of the suction port main body 31 is provided with a plurality of rolls 50 that are in contact with the surface to be cleaned f and support the suction port main body 31. The plurality of rolls 50 include rolls 50 arranged at the left and right ends of the suction port main body 31, and rolls 50 arranged at the rear central portion of the suction port main body 31.

A space is partitioned between the lower case 35 and the upper case 36 of the suction port main body 31. This space includes an electric motor chamber 51 in which the electric motor 29 is housed, a machine room 52 in which the power transmission mechanism 41 is housed, and a control room 53 in which the suction port body control unit 42 is housed. The motor room 51, the machine room 52, and the control room 53 may be connected or separated.

The control chamber 53 is arranged at the center of the front, rear, left, and right sides of the suction port main body 31 in a plan view.

The suction port main body 31 is provided with a pair of rotary cleaning bodies 28 so as to sandwich the suction port 27 from the front and back of the suction port body 16.

The electric motor 29 and the power transmission mechanism 41 are also paired and individually related to each rotary cleaning body 28. The pair of electric motors 29 includes an electric motor 29 provided at one end in the width direction of the suction port main body 31 and an electric motor 29 provided at the other end in the width direction of the suction port main body 31. It is preferable that the pair of electric motors 29 are arranged at substantially the same distance from the center line that divides the suction port main body 31 into left and right. The pair of power transmission mechanisms 41 include a power transmission mechanism 41 provided at one end of the suction port main body 31 in the width direction, and a power transmission mechanism 41 provided at the other end of the suction port main body 31 in the width direction. Includes. It is preferable that the pair of power transmission mechanisms 41 are arranged at a position substantially the same distance from the center line that divides the suction port main body 31 into left and right.

The rotary cleaning body 28 on the front side of the suction port 27 is called a front cleaning body 28F (first rotary cleaning body). The cleaning body room 46 in which the front cleaning body 28F is housed is called a front cleaning body room 46F (first rotation cleaning body room). The electric motor 29 corresponding to the front cleaning body 28F is referred to as a front electric motor 29F, and the power transmission mechanism 41 corresponding to the front cleaning body 28F is referred to as a front transmission mechanism 41F. The motor room 51 in which the front motor 29F is housed is called the front motor room 51F, and the machine room 52 in which the front transmission mechanism 41F is housed is called the front machine room 52F.

The rotary cleaning body 28 behind the suction port 27 is called a rear cleaning body 28R (second rotary cleaning body). The cleaning body room 46 in which the rear cleaning body 28R is housed is called a rear cleaning body room 46R (second rotation cleaning body room). The electric motor 29 corresponding to the rear cleaning body 28R is referred to as a rear electric motor 29R, and the power transmission mechanism 41 corresponding to the rear cleaning body 28R is referred to as a rear transmission mechanism 41R. The motor chamber 51 in which the rear motor 29R is housed is called the rear motor room 51R, and the machine room 52 in which the rear transmission mechanism 41R is housed is called the rear machine room 52R.

The front cleaning body chamber 46F, the suction port 27, and the rear cleaning body chamber 46R are arranged in the traveling direction of the suction port body 16. In other words, the front cleaning body 28F, the suction port 27, and the rear cleaning body 28R are arranged in the traveling direction of the suction port body 16. The front cleaning body 28F, the suction port 27, and the rear cleaning body 28R are arranged from the front side to the rear side of the suction port body 16. Further, the front cleaning body 28F, the air passage narrowing body 49, and the rear cleaning body 28R are arranged in the traveling direction of the suction port body 16. The front cleaning body chamber 46F, the suction port 27, and the rear cleaning body chamber 46R have substantially the same width dimension.

The electric motor 29 rotates the rotary cleaning body 28 in a direction in which the suction port main body 31 is arranged on the surface to be cleaned f, and the dust on the surface to be cleaned f is swept up to the suction port 27. That is, the front motor 29F rotates the front cleaning body 28F in the direction Rf that assists the suction port body 16 from advancing, and the rear motor 29R rotates the rear cleaning body 28R in the direction Rr that assists the suction port body 16 from retreating. To rotate.

The permeation wall 47 partitions a part of each cleaning body chamber 46 and visually covers at least a part of the outer peripheral surface of each rotary cleaning body 28. Therefore, the suction port main body 31 has at least one window portion 55 that is closed by the transmission wall 47. The window portion 55 may be provided in each cleaning body chamber 46, or may be provided straddling a plurality of adjacent cleaning body chambers 46. The window portion 55 according to the present embodiment is provided with a front cleaning body window 55F provided in the upper case 36 so that the front cleaning body 28F can be seen, and a rear cleaning body 28R provided in the lower case 35 so as to be visible. Includes cleaning body window 55R.

The front cleaning body window 55F is located above the front cleaning body 28F and is open over the entire length of the front cleaning body 28F.

The rear cleaning body window 55R is located above the rear cleaning body 28R and is divided into two parts on the left and right sides of the rear cleaning body 28R in order to avoid the suction chamber 45 that reaches the connecting pipe 32 via the upper part of the rear cleaning body chamber 46R. Is open. That is, the rear cleaning body window 55R includes a plurality of divided windows 55RL and 55RR divided in the direction along the rotation center line of the rear cleaning body 28R.

The transmission wall 47 closes the front cleaning body window 55F to visually cover the front cleaning body window 55F, and closes the rear cleaning body window 55R to visually cover the rear cleaning body window 55R. Includes a second transmission wall 47B. Further, the second transmission wall 47B may be divided in the direction along the rotation center line of the rear cleaning body 28R. That is, the second transmission wall 47B may include a plurality of division transmission walls 47BL and 47BR divided in the direction along the rotation center line of the rear cleaning body 28R. In other words, at least one transmission wall 47 includes a plurality of division transmission walls 47BL, 47BR divided in a direction along the rotation center line of at least one rotary cleaning body 28.

The first transmission wall 47A is fixed to the upper case 36. The first permeation wall 47A has the suction port main body 31 arranged on the surface to be cleaned f, and the portion farthest from the surface f to be cleaned of the front cleaning body 28F, that is, the rotation direction Rf of the front cleaning body 28F from the top 28F. Extends along. The second transparent wall 47B is fixed to the lower case 35. The second transmission wall 47B has the suction port main body 31 arranged on the surface to be cleaned f, and is the portion farthest from the surface f to be cleaned of the rear cleaning body 28R, that is, the rotation direction Rr of the rear cleaning body 28R from the top 28Ra. Extends along. In other words, the transmission wall 47 rotates the rotary cleaning body 28 from the portions 28Fa and 28Ra farthest from the cleaning surface f of the corresponding rotary cleaning body 28 in a state where the suction port main body 31 is arranged on the cleaning surface f. It extends in the direction.

The first permeation wall 47A covers above the front cleaning body 28F and defines the front opening edge (the opening edge farthest from the suction port 27) of the front cleaning body chamber 46F. The first transmission wall 47A is a transmission member 56 that also serves as a part of the outer shell of the suction port main body 31. That is, the lower case 35, the upper case 36, and the transmission member 56 cooperate with each other to carry the outer shell of the suction port main body 31. The transmission member 56 may be a combination of the first transmission wall 47A and the second transmission wall 47B. In other words, the transmission member 56 may be all or part of the plurality of transmission walls 47.

The transmission member 56 covers the upper case 36, straddles the upper part of the rear cleaning body chamber 46R, and is connected to the lower case 35 behind the rear cleaning body window 55R. That is, the transmission member 56 doubles covers the rear cleaning body window 55R in cooperation with the second transmission wall 47B. The transmission member 56 is a molded product or a molded product of a transparent or translucent resin.

The suction port 27 is arranged between the front cleaning body chamber 46F and the rear cleaning body chamber 46R. In other words, the suction port 27 is arranged between the front cleaning body 28F and the rear cleaning body 28R. The suction port 27 faces the surface to be cleaned f and directly looks at the surface to be cleaned f without being blocked by the front cleaning body 28F and the rear cleaning body 28R.

The suction chamber 45 is curved rearward of the suction port main body 31 along the lower case 35 so as to cover the rear cleaning body chamber 46R, and is connected to the connection pipe 32. A relay pipe 57 is provided between the suction chamber 45 and the connecting pipe 32. The relay pipe 57 plays the role of a base that supports the connecting pipe 32. The relay pipe 57 is integrally molded with the air passage cover 48.

The front cleaning body chamber 46F is partitioned by an upper case 36, a lower case 35, a first transmission wall 47A of the transmission wall 47, and an air passage narrowing body 49. In other words, the upper case 36, the lower case 35, the first transmission wall 47A of the transmission wall 47, and the air passage narrowing body 49 cooperate to partition the front cleaning body chamber 46F. The front cleaning body chamber 46F can be visually recognized from the outside of the suction port main body 31 through the first transmission wall 47A.

The post-cleaning body chamber 46R is partitioned by a lower case 35, a second transmission wall 47B of the transmission wall 47, and an air passage narrowing body 49. In other words, the lower case 35, the second permeation wall 47B of the permeation wall 47, and the air passage constrictor 49 cooperate to partition the post-cleaning body chamber 46R. The rear cleaning body chamber 46R can be visually recognized from the outside of the suction port main body 31 through the second transmission wall 47B.

The machine room 52 is a left and right end portion of the suction port main body 31, and is divided into a non-existent portion of the front cleaning body chamber 46F, the suction port 27, and the rear cleaning body chamber 46R. The machine room 52 accommodates the shaft end of the front cleaning body 28F and the shaft end of the rear cleaning body 28R. A roll 50 is provided at the bottom of the machine room 52.

The front machine room 52F is a left end portion of the suction port main body 31, and is partitioned into a non-existent portion of the front cleaning body chamber 46F, the suction port 27, and the rear cleaning body chamber 46R. The front machine room 52F accommodates the shaft end of the front cleaning body 28F and the shaft end of the rear cleaning body 28R.

The rear machine room 52R is a right end portion of the suction port main body 31, and is divided into a front cleaning body chamber 46F, a suction port 27, and a non-existent portion of the rear cleaning body chamber 46R. The rear machine room 52R accommodates the shaft end of the front cleaning body 28F and the shaft end of the rear cleaning body 28R.

The motor chamber 51 overlaps the front cleaning body chamber 46F, the suction port 27, and the rear cleaning body chamber 46R in a plan view, and is arranged between the control chamber 53 and the machine chamber 52. In the side view, the rotation center line of the front cleaning body 28F, the rotation center line of the rear cleaning body 28R, and the rotation center line of the motor 29 are located at the respective apex of the triangular shape. The electric motor chamber 51 accommodates a cylindrical electric motor 29 as close as possible to the front cleaning body chamber 46F and the rear cleaning body chamber 46R. That is, the bottom of the electric motor 29 is arranged below the top 28F of the front cleaning body 28F and the top 28Ra of the rear cleaning body 28R. In other words, the electric motor 29 has a surface to be cleaned rather than a line segment connecting the part 28F farthest from the surface to be cleaned f of the front cleaning body 28F and the part 28Ra farthest from the surface f to be cleaned of the rear cleaning body 28R. It has a portion close to f and is arranged between the front cleaning body 28F and the rear cleaning body 28R. In such an arrangement of the electric motor 29 and the configuration of the electric motor chamber 51, even when the electric motor 29 is arranged above the rotary cleaning body 28, the height of the suction port main body 31 is set to the height of the rotary cleaning body 28 ( Keep it lower than the sum of the diameter) and the height (diameter) of the motor 29.

The front motor room 51F is arranged on the left side of the suction port main body 31 and is attached to the front machine room 52F.

The rear motor room 51R is arranged on the right side of the suction port main body 31 and is attached to the rear machine room 52R.

If the front motor room 51F and the front machine room 52F are provided side by side, the front motor room 51F and the front machine room 52F may be arranged on the right side of the suction port main body 31. In this case, the front transmission mechanism 41F is also arranged on the right side of the suction port main body 31. The rear motor chamber 51R, the rear machine room 52R, and the rear transmission mechanism 41R are arranged on the left side of the suction port main body 31.

The rotation center line of the rotary cleaning body 28 is directed in the width direction of the suction port main body 31. The rotary cleaning body 28 has brush bristles 59 extending radially. The brush bristles 59 are a plurality of brushes extending in the longitudinal direction of the rotary cleaning body 28, and are arranged in the circumferential direction of the rotary cleaning body 28.

The electric motor 29 includes an output shaft 29a protruding into the machine room 52. The rotation center line of the output shaft 29a is substantially parallel to the rotation center line of the rotary cleaning body 28. The suction port body 16 may include a drive source of the rotary cleaning body 28 instead of the motor 29, for example, a fan or a turbine that is rotated by air sucked by the suction negative pressure.

The power transmission mechanism 41 is wound around a main gear 61 fixed to the output shaft 29a of the motor 29, a driven gear 62 provided on the rotary cleaning body 28, and the main gear 61 and the driven gear 62, and rotates from the motor 29. It is provided with an endless belt 63 that transmits a driving force to the cleaning body 28.

The suction port body control unit 42 operates the electric motor 29 by the electric power supplied from the vacuum cleaner main body 12 via the extension pipe 15.

The air passage narrowing body 49 divides the suction chamber 45 and the cleaning body chamber 46, separates the suction chamber 45 and the cleaning body chamber 46, and defines a part of the edge of the suction port 27, and the partition wall 65 and the partition wall. It is provided with a dust removing protrusion 66 that protrudes from the edge of 65 and is in contact with the rotary cleaning body 28.

The partition wall 65 that separates the suction chamber 45 and the front cleaning body chamber 46F is called a front partition wall 65F (first partition wall). The front bulkhead 65F defines the front edge of the suction port 27. The dust removing protrusion 66 that protrudes from the edge of the front partition wall 65F and is in contact with the front cleaning body 28F is called a front protrusion 66F (first dust removing protrusion).

The partition wall 65 that separates the suction chamber 45 and the rear cleaning body chamber 46R is called a rear partition wall 65R (second partition wall). The rear bulkhead 65R defines the rear edge of the suction port 27. The dust removing protrusion 66 that protrudes from the edge of the rear partition wall 65R and is in contact with the rear cleaning body 28R is called a rear protrusion 66R (second dust removing protrusion).

A part of the inner surface of the suction chamber 45 (here, the inner surface on the rear side of the suction chamber 45, the first remaining portion of the inner surface of the suction chamber 45) has an arc shape that faces the front partition wall 65F and is convex toward the front partition wall 65F. Has a curved surface 68 of. The curved surface 68 includes an inner surface of the rear partition wall 65R and a surface of the lower case 35 connected to the inner surface of the rear partition wall 65R. The lower case 35 has an arc-shaped wall that partitions a part of the rear cleaning body chamber 46R. This wall concentrically surrounds the rear cleaning body 28R with a substantially uniform thickness, and is smoothly connected to the inner surface of the rear partition wall 65R.

The dust swept up from the surface to be cleaned f by the rotation of the front cleaning body 28F goes to the curved surface 68 of the suction chamber 45. Then, the curved surface 68 smoothly guides the flying dust to the back side (downstream side) of the suction chamber 45.

Further, a part of the inner surface of the suction chamber 45 (here, the inner surfaces on the left and right sides of the suction chamber 45 and the second remaining portion of the inner surface of the suction chamber 45) is connected to the partition wall 65 and is on the back side of the suction chamber 45. It has a funnel-shaped inclined surface 71 that narrows the width of the air passage toward (downstream side). The inclined surface 71 is connected to the front partition wall 65F and the rear partition wall 65R. That is, the inclined surface 71 is bridged between the front partition wall 65F and the rear partition wall 65R. There are a pair of inclined surfaces 71 on the left and right sides of the air passage narrowing body 49. The left and right inclined surfaces 71 are inclined so as to be separated from the corresponding end portions of the air passage narrowing body 49 and to enter the inner side of the suction chamber 45 as they approach the central portion. The left and right inclined surfaces 71 are separated from each other without merging. The gap between the left and right inclined surfaces 71 is connected to the suction chamber 45 on the back side of the inclined surface 71. The inclined surface 71 smoothly guides the air sucked from the suction port 27, which is elongated in the width direction of the suction port body 16, to the back side of the suction chamber 45 connected to the connecting pipe 32.

The inclined surface 71 has a staircase shape including a guide surface 72 facing the partition wall 65 in a vertical cross-sectional view of the suction port main body 31. The guide surface 72 faces the front partition wall 65F. The staircase shape portion may be a single step or a plurality of steps as shown in FIG. The staircase shape preferably reaches the full width of the inclined surface 71. The shape of the bottom of each step may be flat or recessed. The guide surface 72 is preferably parallel to the front partition wall 65F. The guide surface 72 captures the dust swept up by the front cleaning body 28F and guides it to the back side of the suction chamber 45. Further, the guide surface 72 has an intermediate portion sandwiched between the front cleaning body 28F and the surface to be cleaned f, and one or both ends of the guide surface 72 are raised toward the suction port 27, and the thread-like dust gets over the rear partition wall 65R. Then, the end of the thread-like dust is guided to the back side of the suction chamber 45 so as not to approach the rear cleaning body 28R side.

The dust removing protrusion 66 enters the inside of the rotation locus of the rotary cleaning body 28. The dust removing protrusion 66 repels the brush bristles 59 of the rotary cleaning body 28 as the rotary cleaning body 28 rotates. At this time, the dust removing protrusion 66 repels the thread-like dust that adheres to the rotary cleaning body 28 and tries to enter the cleaning body chamber 46 from the brush bristles 59 and separates it from the rotary cleaning body 28. The thread-like dust separated from the rotary cleaning body 28 is easily sucked into the suction port 27. That is, the dust removing protrusion 66 can prevent the thread-like dust adhering to the rotary cleaning body 28 from entering the cleaning body chamber 46.

The dust removing protrusion 66 is preferably provided over the entire width of the partition wall 65. The dust removing protrusion 66 only needs to be able to bend the brush bristles 59 of the rotary cleaning body 28. Therefore, the shape of the dust removing protrusion 66 may be a comb shape as shown in FIGS. 5 and 6, or may be a plate shape having a uniform protrusion length over the entire width. Since the rotational resistance of the rotary cleaning body 28 increases due to the contact of the dust removing protrusion 66, the shape of the dust removing protrusion 66 is appropriately set according to the output of the electric motor 29.

Assuming that the ground plane of the suction port body 16 is a reference plane, the front protrusion 66F is substantially parallel to the reference plane. The rear protrusion 66R is inclined and protrudes in a direction away from the reference plane.

Generally, the user advances the suction port body 16 to allow the suction port body 16 to enter the uncleaned surface f. At this time, the thread-like dust on the surface to be cleaned f moves from the front to the rear of the suction port body 16. The inventor made the front protrusion 66F substantially parallel to the reference plane, while tilting the rear protrusion 66R away from the reference plane, so that thread-like dust was generated in the front cleaning body chamber 46F and the rear cleaning body chamber 46R. I found it difficult to enter both.

Further, the rear partition wall 65R has a hole 73 connecting the suction chamber 45 and the rear cleaning body chamber 46R. The holes 73 are arranged in a range sandwiched between the left and right inclined surfaces 71. There may be a plurality of holes 73. The hole 73 is discharged to the suction chamber 45 so that the dust that has entered the rear cleaning body chamber 46R does not remain in the rear cleaning body chamber 46R.

The dust that has entered the front cleaning body chamber 46F is discharged to the front of the suction port 16 as the front cleaning body 28F rotates. That is, the dust that has entered the front cleaning body chamber 46F is more likely to be sucked into the suction port 27 while the suction port body 16 is advancing than the dust that has entered the rear cleaning body chamber 46R. Therefore, the front partition wall 65F does not have to have a hole 73 like the rear partition wall 65R.

Further, if dust enters the cleaning body chamber 46, the user can visually recognize it through the permeation wall 47. That is, the user can visually check whether or not dust has entered the front cleaning body chamber 46F through the first transmission wall 47A, and dust has entered the rear cleaning body chamber 46R through the second transmission wall 47B. It is possible to visually check whether or not it is present.

A protruding portion 75 having an acute vertical cross-sectional shape toward the rear cleaning body 28R is provided at a portion of the opening edge portion of the rear cleaning body chamber 46R and facing the rear protrusion 66R. The protruding portion 75 is provided in a portion on the rear side of the opening edge portion of the rear cleaning body chamber 46R. When the suction port body 16 is used on a soft surface to be cleaned like a carpet, the suction port body 31 sinks into the surface to be cleaned f. In such a case, the protrusion 75 raises the surface to be cleaned f like a blade of a bulldozer, and scrapes out the dust that has entered the carpet.

The protrusion 75 preferably extends over the entire width of the rear cleaning body chamber 46R. Further, when the suction port body 16 is used on a hard surface to be cleaned such as flooring, the protrusion 75 is directed downward from the suction port body 31 within a range not in contact with the surface to be cleaned f. It may protrude from the bottom surface of the.

The suction port body 16 may include three or more rotary cleaning bodies 28 including a front cleaning body 28F and a rear cleaning body 28R that sandwich the suction port 27 in between. That is, the suction port body 16 includes three or more cleaning body chambers 46 including a front cleaning body chamber 46F and a rear cleaning body chamber 46R which are partitioned outside the suction chamber 45 and sandwich the suction port 27 in between, and a front cleaning body. It may include three or more rotary cleaning bodies 28, which include 28F and a post-cleaning body 28R, and are arranged in each cleaning body room 46. In this case, it is preferable that the cleaning body chamber 46 and the rotary cleaning body 28 are provided in the same number. The electric motor 29, the electric motor chamber 51, the power transmission mechanism 41, and the machine chamber 52 may be provided in the same number as the cleaning body chamber 46 and the rotary cleaning body 28, as long as a plurality of rotary cleaning bodies 28 can be driven at the same time. It may be less than the cleaning body chamber 46 and the rotary cleaning body 28. For example, the driving force of one electric motor 29 may be distributed by the power transmission mechanism 41 to drive a plurality of rotary cleaning bodies 28 at the same time.

Further, the suction port body 16 includes three or more transmission walls 47 including a first transmission wall 47A that visually covers the front cleaning body 28F and a second transmission wall 47B that visually covers the rear cleaning body 28R. You may. In this case, each transmission wall 47 is provided in each cleaning body chamber 46. The transmission member 56 may be all or part of three or more transmission walls 47.

FIG. 9 is a control block diagram of the suction port body according to the embodiment of the present invention.

As shown in FIG. 9, the suction port body 16 according to the present embodiment drives the electric motor 29 with the electric power supplied from the secondary battery 13 mounted on the vacuum cleaner main body 12.

Then, the suction port body control unit 42 of the suction port body 16 steps down the power supplied from the secondary battery 13 and outputs a control power source, respectively, from the control power supply generation unit 81 and the secondary battery 13. A reference voltage for pulse width modulation (PWM) control is generated by a plurality of switching elements 83 that open and close the electric circuit 82 that supplies drive power to the electric power 29 and a power supply supplied from the control power supply generation unit 81. It includes a reference voltage generation unit 85 and a plurality of PWM control units 86 that individually open / close control each switching element 83.

The switching element 83 is an element such as a bidirectional thyristor (Triode AC Switch, TRIAC), a reverse blocking 3-terminal thyristor (Silicon Controlled Rectifier, SCR), or a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor). The switching element 83 includes a gate 83a connected to the PWM control unit 86. The switching element 83 changes the input (driving current) of the motor 29 according to a change in the gate current or the gate voltage.

When at least one of the plurality of electric motors 29 becomes overloaded, the suction port body control unit 42 stops the overloaded motor 29 and operates the other non-overloaded motor 29. Let it continue. That is, each PWM control unit 86 detects the current value flowing through the corresponding electric motor 29 by, for example, a current sensor (not shown), and when this current value becomes excessive, the electric motor 29 is stopped.

In this way, when a plurality of electric motors 29 are individually stopped or operated depending on whether or not they are in an overloaded state, the rotary cleaning body 28 that is stopped and the rotary cleaning body 28 that is continuing the operation , Can be mixed. Even in this case, the user can hear the driving sound of any of the rotary cleaning bodies 28.

However, in the suction port body which does not have a transparent part where the rotary cleaning body 28 cannot be visually recognized, the driving sound of any of the rotary cleaning bodies 28 can be heard so much that the user can use a part of the rotary cleaning bodies. It is difficult to determine that 28 is stopped. Further, there is known a suction port body provided with a safety device (not shown) that stops the rotary cleaning body 28 when the suction port body 16 is separated from the surface to be cleaned f. In such a suction port body 16, even if the user feels some abnormality and picks up the suction port body 16 and checks the state of the rotary cleaning body 28, the stop of the rotary cleaning body 28 may cause an overload or the like. It is difficult to determine whether it is due to an abnormality or the function of the safety device.

Therefore, the suction port body 16 according to the present embodiment includes a transmission wall 47 that visually covers the rotary cleaning body 28. Therefore, the user can easily visually recognize whether or not each of the rotary cleaning bodies 28 of the suction port bodies 16 arranged on the surface to be cleaned f is normally driven.

The suction port control unit 42 may stop all the motors 29 when at least one of the plurality of motors 29 is in an overloaded state. In this case, only one PWM control unit 86 is required.

In a suction port body that does not have a transparent portion where the rotary cleaning body 28 cannot be visually recognized, when at least one motor 29 is in an overloaded state, the user may stop all the motors 29. It is difficult to determine which motor 29 is in the overloaded state and which motor 29 is in the non-overloaded state, that is, in the normal state.

With the suction port body 16 according to the present embodiment, it is possible to easily visually recognize whether or not foreign matter that hinders the rotation of the rotary cleaning body 28 has entered the cleaning body chamber 46 of the suction port body 16.

As described above, the suction port body 16 and the electric cleaner 1 according to the present embodiment are partitioned on the suction port 27 that opens toward the bottom surface 31a, the suction chamber 45 that connects to the suction port 27, and the outside of the suction chamber 45. A plurality of cleaning body chambers 46 having a suction port 27 sandwiched between them, a plurality of rotary cleaning bodies 28 arranged in the respective cleaning body chambers 46, and an electric motor 29 for generating a driving force of each rotary cleaning body 28. It has. Therefore, the suction port body 16 and the vacuum cleaner 1 do not generate an air flow that surrounds the rotary cleaning body 28 around the rotary cleaning body 28. The air sucked into the suction port 27 flows into the suction port 27 from the gap between the rotary cleaning body 28 and the surface to be cleaned f and from the side of the suction port 27. Therefore, the suction port body 16 and the vacuum cleaner 1 can prevent the thread-like dust sucked into the suction port 27 from being wrapped around the rotary cleaning body 28. Further, the suction port body 16 and the vacuum cleaner 1 can prevent the particulate dust sucked into the suction port 27 from entering the cleaning body chamber 46.

Further, the suction port body 16 and the vacuum cleaner 1 according to the present embodiment are at least one that partitions each cleaning body chamber 46 and visually covers at least a part of the outer peripheral surface of each rotary cleaning body 28. It is provided with a transparent wall 47. Therefore, the suction port 16 and the vacuum cleaner 1 can easily make the user visually recognize the foreign matter including the thread-like dust even if the foreign matter including the thread-like dust enters the cleaning body chamber 46.

Further, the suction port body 16 and the vacuum cleaner 1 according to the present embodiment are divided into a suction port 27 that opens toward the bottom surface 31a, a suction chamber 45 that connects to the suction port 27, and a suction port that is partitioned outside the suction chamber 45. It is provided with a plurality of cleaning bodies 46 having 27 sandwiched between them. Therefore, in the suction port body 16 and the vacuum cleaner 1, it is difficult for fine particulate dust to enter the cleaning body chamber 46, and the suction port body 16 and the vacuum cleaner 1 are thin on the inner surface of the transmission wall 47 which is a part or all of the wall partitioning the cleaning body chamber 46. Permeability can be maintained by preventing dust from adhering. Since the dust removing protrusion 66 protruding from the edge of the partition wall 65 and coming into contact with the rotary cleaning body 28 prevents air containing fine dust from flowing into the cleaning body chamber 46, fine dust is present on the inner surface of the transmission wall 47. It is more difficult to adhere and the permeability can be maintained more remarkably.

Further, the suction port body 16 and the vacuum cleaner 1 according to the present embodiment include a transmission member 56 having all or a part of the transmission wall 47 and also serving as a part of the outer shell of the suction port main body 31. Therefore, the suction port body 16 and the vacuum cleaner 1 can visually cover the plurality of cleaning body chambers 46 with a small number of parts while suppressing an increase in the number of parts.

Further, in the suction port body 16 and the vacuum cleaner 1 according to the present embodiment, in a state where the suction port main body 31 is arranged on the surface to be cleaned f, the dust on the surface to be cleaned f is swept toward the suction port 27. It is provided with a plurality of rotary cleaning bodies 28 that rotate to. Therefore, the suction port body 16 and the electric vacuum cleaner 1 have a rotary cleaning body 28 located in front of the suction port 27 and a rotary cleaning body 28 located behind the suction port 27 in the process of moving the suction port body 16. , Dust on the surface to be cleaned f can be captured more reliably. The "rotary cleaning body 28 located in front of the suction port 27 in the process of moving the suction port body 16" is the front cleaning body 28F in the process of advancing the suction port body 16, and the suction port body 16 is In the process of retreating, it is a post-cleaning body 28R. Further, the "rotary cleaning body 28 located behind the suction port 27 in the process of moving the suction port body 16" is a rear cleaning body 28R in the process of advancing the suction port body 16, and the suction port body 16 is In the process of retreating, it is the front cleaning body 28F.

By the way, the suction port body 16 is generally arranged on the surface to be cleaned f in front of and below the user when the vacuum cleaner 1 is used. Then, in the suction port body 16 and the vacuum cleaner 1 according to the present embodiment, the suction port main body 31 is arranged on the surface to be cleaned f, and the portion farthest from the surface to be cleaned f of the corresponding rotary cleaning body 28. A transmission wall 47 extending from the rotary cleaning body 28 in the rotational direction is provided. Therefore, the suction port body 16 and the vacuum cleaner 1 allow the user of the vacuum cleaner 1 to easily visually check the driving state of the rotary cleaning body 28.

Further, the suction port body 16 and the vacuum cleaner 1 according to the present embodiment have a portion 28F farthest from the cleaned surface f of the front cleaning body 28F and a portion Fb farthest from the cleaned surface f of the rear cleaning body 28R. It has a portion closer to the surface to be cleaned f than the line connecting the and, and is provided with an electric motor 29 arranged between the front cleaning body 28F and the rear cleaning body 28R. Therefore, the suction port body 16 and the vacuum cleaner 1 can reduce the height of the suction port main body 31 as much as possible. Further, the suction port body 16 and the electric vacuum cleaner 1 lower the ridgeline of the suction port body 16 to prevent the transmission wall 47 from being hidden from the line of sight of the user of the electric vacuum cleaner 1, and the visibility of the rotary cleaning body 28. To improve.

Further, in the suction port body 16 and the vacuum cleaner 1 according to the present embodiment, when at least one of the plurality of electric motors 29 is in an overloaded state, only the overloaded motor 29 may be stopped. However, all of the plurality of electric motors 29 may be stopped. In any case, the suction port body 16 and the vacuum cleaner 1 can easily make the user visually recognize whether or not the operating state of the plurality of rotary cleaning bodies 28 is normal by the transmission wall 47.

Therefore, according to the suction port body 16 and the electric vacuum cleaner 1 according to the present embodiment, it is possible to suppress the wrapping of thread-like dust around the rotary cleaning body 28, and the thread-like dust is tentatively wrapped around the rotary cleaning body 28. In some cases, that can be easily known.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

1 ... Electric cleaner, 11 ... Handle, 12 ... Vacuum cleaner body, 13 ... Secondary battery, 15 ... Extension tube, 16 ... Suction port, 17 ... Body case, 17a ... First half, 17b ... Second half, 18 ... Electric blower, 19 ... Dust separation and dust collection unit, 21 ... Main unit control unit, 23 ... Main unit connection port, 26 ... Input unit, 26a ... Operation start switch, 26b ... Operation stop switch, 26c ... Brush switch, 27 ... Suction port, 28 ... rotary cleaning body, 28F ... front cleaning body, 28Fa ... top of front cleaning body, 28R ... rear cleaning body, 28Ra ... top of rear cleaning body, 29 ... electric motor, 29F ... front electric motor, 29R ... rear electric motor, 29a ... output shaft, 31 ... suction port body, 31a ... bottom surface, 32 ... connection pipe, 35 ... lower case, 36 ... upper case, 38 ... rotary connection pipe, 39 ... rocking connection pipe, 41 ... power transmission mechanism, 41F ... front transmission mechanism, 41R ... rear transmission mechanism, 42 ... suction port body control unit, 45 ... suction chamber, 46 ... cleaning body room, 46F ... front cleaning body room, 46R ... rear cleaning body room, 47 ... transparent wall , 47A ... 1st transmission wall, 47B ... 2nd transmission wall, 47BL, 47BR ... Divided transmission wall, 48 ... Airway cover, 49 ... Airway constrictor, 50 ... Roll, 51 ... Electric room, 51F ... Front electric motor Room, 51R ... Rear electric motor room, 52 ... Machine room, 52F ... Front machine room, 52R ... Rear machine room, 53 ... Control room, 55 ... Window, 55F ... Front cleaning body Window, 55R ... Rear cleaning body Window, 55RL, 55RR ... split window, 56 ... transmission member, 57 ... relay pipe, 59 ... brush bristles, 61 ... main gear, 62 ... driven gear, 63 ... belt, 65 ... partition, 65F ... front partition, 65R ... rear Partition wall, 66 ... Dust removal protrusion, 66F ... Front protrusion, 66R ... Rear protrusion, 68 ... Curved surface, 71 ... Inclined surface, 72 ... Guide surface, 73 ... Hole, 75 ... Projection, 81 ... Control power generation unit, 82 ... Electric circuit, 83 ... Switching element, 83a ... Gate, 85 ... Reference voltage generator, 86 ... PWM control unit.

Claims (9)

A suction port main body having a suction port that opens toward the bottom surface and a suction chamber that connects to the suction port.
The first rotary cleaning body and the second rotary cleaning body include a first rotary cleaning body rotatably supported by the suction port main body and a second rotary cleaning body rotatably supported by the suction port main body. A plurality of rotary cleaning bodies that sandwich the suction port between and
At least one drive source for generating the driving force of the plurality of rotary cleaning bodies is provided.
The suction port main body is a suction port body including at least one transmission wall that visually covers at least a part of the outer peripheral surface of each of the rotary cleaning bodies. The suction port body according to claim 1, further comprising a transmission member having all or a part of the transmission wall and also serving as a part of the outer shell of the suction port body. The rotary cleaning body according to claim 1 or 2, wherein each of the rotary cleaning bodies rotates in a direction in which the suction port main body is arranged on the surface to be cleaned and dust on the surface to be cleaned is swept toward the suction port. Suction port body. The at least one transmission wall is formed along the rotation direction of the rotary cleaning body from a portion of the corresponding rotary cleaning body farthest from the cleaning surface in a state where the suction port main body is arranged on the surface to be cleaned. The suction port body according to any one of claims 1 to 3 that extends. The at least one drive source is more than a line segment connecting the portion of the first rotary cleaning body farthest from the surface to be cleaned and the portion of the second rotary cleaning body farthest from the surface to be cleaned. The suction port body according to any one of claims 1 to 4, which has a portion close to the surface to be cleaned and is arranged between the first rotary cleaning body and the second rotary cleaning body. The at least one drive source includes a plurality of the drive sources that individually drive each of the rotary cleaners.
The suction according to any one of claims 1 to 5, further comprising a control unit that stops all of the plurality of drive sources when at least one of the plurality of drive sources becomes overloaded. Mouth body. The at least one drive source includes a plurality of the drive sources that individually drive each of the rotary cleaners.
The suction according to any one of claims 1 to 5, further comprising a control unit that stops the overloaded drive source when at least one of the plurality of drive sources is in an overloaded state. Mouth body. The suction port body according to any one of claims 1 to 7, wherein the at least one transmission wall includes a plurality of divided transmission walls divided in a direction along the rotation center line of the rotary cleaning body. With the vacuum cleaner body
An electric blower housed in the vacuum cleaner body to generate negative pressure,
A vacuum cleaner comprising the suction port body according to any one of claims 1 to 8, which is fluidly connected to the electric blower.

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