JP2021094277A - Suction port body and vacuum cleaner - Google Patents

Abstract

To propose a suction port body having less influence on lateral balance and having a high degree of freedom in design, and also to propose a vacuum cleaner including the suction port body.SOLUTION: A suction port body 16 includes: a detection part 82 which detects grounding of a suction port main body 31 on a cleaned surface f; an operation piece 83 which stops rotation of a rotary cleaning body 28 when the suction port main body 31 is grounded on the cleaned surface f; a block part 85 which prevents an operation of the rotary cleaning body 28 when the suction port main body 31 is vertically reversed; and a shaft part 86 which integrates rotation of the detection section 82 arranged at one end and the operation piece 83, the block part 85 arranged at the other end, is arranged between a connection pipe part 32 and a bottom plate 31b of the suction port main body 31, and is extended in a direction to cross with the connection pipe part 32.SELECTED DRAWING: Figure 8

Description

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

The suction port body is known to have a suction port body having a suction port, a rotary brush arranged at the suction port, a motor for rotating the rotary brush, and a safety switch for stopping the motor when the suction tool body is turned upside down. Has been done.

The safety switch is a switch that controls the on / off of the motor, an operation piece that operates the switch according to the ground contact state on the surface to be cleaned, and the installation state on the surface to be cleaned that protrudes swingably from the bottom of the suction tool body. It includes a bracket and a rotating roller as a detection unit for detection, and a stopper piece that prevents the detection unit from pressing the switch when the suction tool main body is reversed.

Japanese Unexamined Patent Publication No. 08-332165

The conventional suction port body is provided with a safety switch located on the left side or the right side of the connecting pipe. Such an arrangement of the safety switch promotes the left-right imbalance of the suction port body centering on the connecting pipe. The left-right imbalance of the suction port body impairs the usability of the suction port body.

Therefore, in the conventional suction port body, the left-right imbalance has been eliminated by devising the arrangement of the parts housed in the suction port body, for example, the motor, the control board, and the safety switch. However, such a measure to eliminate the imbalance restricts the arrangement of each component and impairs the degree of freedom in designing the suction port.

Further, by arranging the safety switch on the center line that divides the suction port body into the left and right, the imbalance between the left and right can be easily eliminated. However, on the center line of the suction port body, elements constituting the air passage in the suction port such as the suction port and the connecting pipe occupy a large volume. Therefore, arranging the safety switch on the center line of the suction port body increases the height dimension of the suction port body and lowers the usability in a gap such as under the bed. In addition, if the safety switch is placed on the center line of the suction port body and the height dimension of the suction port body is avoided to increase, the cross-sectional area of the air passage in the suction port body may be reduced or the wind may be generated. The road shape becomes distorted and the pressure loss increases.

Therefore, an object of the present invention is to provide a suction port body having a small influence on the left-right balance and a high degree of freedom in design, and a vacuum cleaner provided with such a suction port body.

In order to solve the above problems, the suction port body according to the embodiment of the present invention is rotatably supported by a suction port main body having a suction port, a suction chamber connected to the suction port, and the suction port main body. The rotary cleaning body, the electric motor housed in the suction port main body to generate the driving force of the rotary cleaning body, the pipe provided in the suction port main body and fluidly connected to the suction chamber, and the electric motor. The switch that opens and closes the connected power supply path and the amount of protrusion of the suction port main body with respect to the ground surface can be changed, and it is detected whether or not the suction port main body is in contact with the suction port toward the surface to be cleaned. When the detection unit detects that the detection unit and the suction port main body are in contact with the suction port toward the surface to be cleaned, the operation of closing the switch and driving the electric motor is performed. A piece, a blocking portion that prevents the operating piece from closing the switch when the suction port main body is inverted, and a shaft portion that rotationally integrates the detecting unit, the operating piece, and the blocking portion. The shaft portion is arranged between the pipe and the bottom plate of the suction port main body, extends in a direction that straddles the pipe and intersects the pipe in a plan view of the suction port main body, and the detection unit. Is provided at one end of the shaft, and the operating piece and the blocking are provided at the other end of the shaft.

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. Sectional drawing of the suction port body which concerns on embodiment of this invention. Sectional drawing of the suction port body which concerns on embodiment of this invention. The perspective view of the integrally molded member of the safety device of the suction port body which concerns on embodiment of this invention. Sectional drawing of the suction port body which concerns on embodiment of this invention. Sectional drawing 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 11.

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 the 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, parameters, and the like 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, and reads the selected operation mode setting from the storage unit. The electric blower 18 is operated 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 decreases, 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 main 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 arranged at the suction port 27 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 for the electric blower 18 is the largest in the strong operation mode and the smallest in the weak operation mode. 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 portion 31 having a substantially rectangular parallelepiped shape, and a connecting pipe portion 32 provided at the rear portion of the suction port main body portion 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 rectangle 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 portion 32 is provided at the rear portion of the suction port main body portion 31 and at a substantially central portion in the width direction. The connection pipe portion 32 includes a rotary connection pipe portion 38 that can rotate with respect to the suction port main body portion 31, and a swing connection pipe portion 39 that can swing with respect to the rotary connection pipe portion 38.

The rotary connection pipe portion 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 connection pipe portion 39 swings around a line segment orthogonal to the rotation center line of the rotation connection pipe portion 38 or a line segment parallel to this line segment. The free end of the swing connection 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.

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 includes a suction port main body 31, a rotary cleaning body 28 rotatably supported by the suction port main body 31, and a suction port main body. Controls the operation of the electric motor 29 as a drive source housed in 31 to generate 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 operation of the electric motor 29. It includes a suction port body control unit 42.

Further, the suction port body 16 includes a safety device 43 that stops the electric motor 29 when the suction port body 16 is separated from the surface to be cleaned or the suction port body 16 is turned upside down.

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.

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

The suction chamber 45 includes 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 center.

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 accommodates the motor chamber 51 in which the motor 29 is housed, the machine room 52 in which the power transmission mechanism 41 is housed, the control room 53 in which the suction port body control unit 42 is housed, and the safety device 43. The safety device room 55 and the like are included. The motor room 51, the machine room 52, the control room 53, and the safety device room 55 may be connected or separated.

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

The safety device chamber 55 is arranged at the rear portion of the suction port main body portion 31 and is provided on each of the left and right side portions of the rotary connection pipe portion 38 so as to sandwich the rotary connection pipe portion 38 of the connection pipe portion 32.

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.

A pair of the electric motor 29 and the power transmission mechanism 41 also correspond to each of the rotary cleaning bodies 28 individually. The pair of electric motors 29 includes an electric motor 29 provided at one end of the suction port main body 31 in the width direction and an electric motor 29 provided at the other end of the suction port main body 31 in the width direction. .. 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. And, including. 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 referred to as 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 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 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 portion 32. A relay pipe 57 is provided between the suction chamber 45 and the connecting pipe portion 32. The relay pipe 57 plays the role of a base that supports the connecting pipe portion 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, and an air passage constricting body 49. The post-cleaning body chamber 46R is partitioned by a lower case 35 and an air passage constrictor 49.

The machine room 52 is a left and right end portion of the suction port main body portion 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 portion 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 portion 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 the 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 of the front cleaning body 28F and the top of 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 (diameter) and the height (diameter) of the motor 29.

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

The rear motor chamber 51R is 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 electric motor 29 rotates the rotary cleaning body 28 in the direction of sweeping dust to the suction port 27. 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 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, which protrudes from the edge of the partition wall 65 and comes into contact with the rotary cleaning body 28. It is provided with a protrusion 66.

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 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 by the rotation of the front cleaning body 28F goes toward 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 portion 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 rise 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 filamentous dust was collected from 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.

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 main 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 portion 31.

Next, the safety device 43 of the suction port body 16 will be described in detail.

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

FIG. 9 is a perspective view of an integrally molded member of the suction port safety device according to the embodiment of the present invention.

In addition to FIG. 4, as shown in FIGS. 8 and 9, the safety device 43 of the suction port body 16 according to the present embodiment includes a switch 81 for opening and closing the power supply path connected to the electric motor 29, and a suction port main body 31. The amount of protrusion of the bottom surface 31a can be changed, and the suction port main body 31 has a detection unit 82 that detects whether or not the bottom surface 31a is in contact with the surface to be cleaned f, and the suction port main body 31 has the bottom surface 31a. When the detection unit 82 detects that the surface to be cleaned f is in contact with the ground, the operation piece 83 that closes the switch 81 to drive the electric motor 29 and the suction port main body 31 are reversed. In this case, the blocking portion 85 that prevents the operation piece 83 from closing the switch 81, the shaft portion 86 that rotates and integrates the detection unit 82, the operation piece 83, and the blocking portion 85, and the bottom surface of the suction port main body 31. An elastic member 87 that applies a force to the detection unit 82 in a direction protruding from 31a is provided.

The detection unit 82 is provided at one end of the shaft unit 86. The detection unit 82 is housed in either the safety device room 55 on the right side or the safety device room 55 on the left side of the connection pipe unit 32. The detection unit 82 is housed in, for example, the safety device room 55 on the right side of the connection pipe unit 32. The detection unit 82 includes a bracket 91 provided at one end of the shaft portion 86, a support shaft 92 provided on the bracket 91, and a roller 93 rotatably supported by the bracket 91 via the support shaft 92. I have.

The blocking portion 85 is provided at the other end of the shaft portion 86 together with the operating piece 83. The blocking portion 85 is housed together with the operation piece 83 in either the safety device chamber 55 on the right side or the safety device chamber 55 on the left side of the connecting pipe portion 32. The blocking portion 85 is housed in, for example, the safety device chamber 55 on the left side of the connecting pipe portion 32. The blocking portion 85 includes a substantially U-shaped stopper piece 95 provided at the other end of the shaft portion 86, and a sphere 96 that can move in the vertical direction of the suction port main body 31 by its own weight.

The stopper piece 95 protrudes from the shaft portion 86 in an arm shape. The stopper piece 95 has a base end portion 95a which is one end of the U-shape and is fixed to the shaft portion 86, and a free end portion 95b which is the other end of the U-shape. There is.

The sphere 96 is a sphere made of metal, for example, stainless steel, which has extremely high strength as compared with the stopper piece 95 of the blocking portion 85 made of synthetic resin.

The operation piece 83 is provided at the other end of the shaft portion 86 together with the blocking portion 85. The operation piece 83 is housed in one of the safety device room 55 on the right side and the safety device room 55 on the left side of the connecting pipe portion 32 together with the blocking portion 85. The operation piece 83 is housed in, for example, the safety device room 55 on the left side of the connecting pipe portion 32. The operation piece 83 is closer to the other end of the shaft portion 86 than the stopper piece 95 of the blocking portion 85, and is attached to the stopper piece 95. When the suction port body 16 is grounded to the surface to be cleaned f, the operation piece 83 rotates in conjunction with the movement of the roller 93 being pushed toward the suction port main body 31 by the surface to be cleaned f, and the switch 81 Close.

The shaft portion 86 is rotatably supported by the suction port main body portion 31. The shaft portion 86 is arranged between the connecting pipe portion 32 and the bottom plate 31b of the suction port main body 31, and is in a direction that straddles the connecting pipe 32 and intersects the connecting pipe 32 in a plan view of the suction port main body 31. It is extending. The shaft portion 86 is arranged directly below the connecting portion between the connecting pipe portion 32 and the relay pipe 57. The shaft portion 86 is bridged between the safety device chamber 55 on the right side and the safety device chamber 55 on the left side of the connecting pipe portion 32.

The torsional strength of the shaft portion 86 is higher than the torsional strength of the detection unit 82 and the torsional strength of the operation piece 83. Further, the torsional rigidity of the shaft portion 86 is higher than the torsional rigidity of the detection unit 82 and the torsional rigidity of the operation piece 83.

The bracket 91 of the detection unit 82, the operation piece 83, the stopper piece 95 of the blocking unit 85, and the shaft portion 86 are rotationally integrated by the integrally molded member 99. The bracket 91 of the detection unit 82, the operation piece 83, and the stopper piece 95 of the blocking unit 85 are made of, for example, synthetic resin. The shaft portion 86 is made of metal, for example, stainless steel, which has extremely high strength and shear elastic modulus (rigidity) as compared with the bracket 91 of the detection unit 82 made of synthetic resin, the operation piece 83, and the stopper piece 95 of the blocking portion 85. It has the shaft itself or the shaft core.

The integrally molded member 99 is, for example, a molded product in which a metal shaft portion 86 is insert-molded into a bracket 91 of a detection portion 82 made of synthetic resin, an operation piece 83, and a stopper piece 95 of a blocking portion 85. The shaft portion 86 may or may not be covered with a synthetic resin. The bracket 91 of the detection unit 82, the operation piece 83, the stopper piece 95 of the blocking unit 85, and the shaft portion 86 may be integrally rotated and integrally connected by a mechanical element such as a key.

The elastic member 87 is, for example, a torsion spring. The elastic member 87 is hooked on a spring receiving portion provided at an appropriate position of the integrally molded member 99 and a spring receiving portion provided at an appropriate position of the suction port main body 31. The elastic member 87 stores energy when the detection unit 82 is pushed in from the maximum protruding position, and consumes this energy to project the detection unit 82. Further, in the elastic member 87, even if the suction port body 16 is turned upside down and the bottom surface 31a of the suction port body 16 is directed upward, the bracket 91, the operation piece 83, the stopper piece 95, and the integrally molded member 99 are formed. The shaft portion 86, the support shaft 92, and the roller 93 are supported so as not to rotate due to their own weight. Therefore, it is preferable that an appropriate preload is applied to the elastic member 87.

FIG. 10 is a cross-sectional view of a suction port body according to an embodiment of the present invention in line XX of FIG.

As shown in FIG. 10, when the suction port body 16 is grounded to the surface to be cleaned f with the bottom surface 31a facing the surface to be cleaned f, the surface f to be cleaned resists the force generated by the elastic member 87. The roller 93 is pushed toward the suction port main body 31. The movement of the roller 93 rotates the shaft portion 86 via the support shaft 92 of the detection unit 82 and the bracket 91. The rotation of the shaft portion 86 rotates the operation piece 83 and the stopper piece 95 of the blocking portion 85. The elastic member 87 is deformed by the rotation of the shaft portion 86 and stores energy.

The rotated operating piece 83 closes the switch 81 and enables a power supply path to the motor 29. When the switch 81 is closed and the brush switch 26c is operated to supply electric power to the suction port body 16, electric power is supplied to the electric motor 29 to drive the electric motor 29. Then, the rotary cleaning body 28 rotates.

Further, the rotated stopper piece 95 directs the U-shaped open portion in the horizontal direction. The sphere 96 of the blocking portion 85 is captured inside the U-shaped stopper piece 95 (concave-shaped portion).

Next, when the suction port body 16 separates from the cleaned surface f with the bottom surface 31a facing the surface to be cleaned f, the elastic member 87 is restored so that the roller 93 protrudes from the suction port main body 31. The unit 86 rotates. The rotation of the shaft portion 86 rotates the operation piece 83, the stopper piece 95 of the blocking portion 85, and the bracket 91 of the detection portion 82.

The rotated bracket 91 projects the roller 93 from the suction port main body 31. At this time, the protruding position of the detection unit 82 reaches the maximum protruding position.

Further, the rotated operation piece 83 opens the switch 81 to cut off the power supply to the motor 29. In the state where the switch 81 is opened, the power supply to the electric motor 29 is cut off even when the brush switch 26c is operated to supply electric power to the suction port body 16. Then, the electric motor 29 stops, and the rotary cleaning body 28 stops.

Further, the rotated stopper piece 95 directs the U-shaped open portion upward. When the U-shaped open portion faces upward, the sphere 96 can be pulled out from the inside (concave-shaped portion) of the U-shaped stopper piece 95. That is, the sphere 96 can move upward.

FIG. 11 is a cross-sectional view of a suction port body according to an embodiment of the present invention in line XX of FIG.

As shown in FIG. 11, when the suction port body 16 is turned upside down and the bottom surface 31a of the suction port body 16 is directed upward, the elastic member 87 supports the rotation of the shaft portion 86, and the roller 93 supports the rotation of the suction port main body. The state of protruding from 31 is maintained. At this time, the sphere 96 comes out from the inside of the U-shaped stopper piece 95 due to its own weight. The sphere 96 that has come out from the inside of the stopper piece 95 is a rotation blocking position that prevents the stopper piece 95 from rotating by a wall that is appropriately provided in the suction port main body 31 and regulates the movement range of the sphere 96 (FIG. 10). Is placed in. When an external force such as pushing the roller 93 into the suction port main body 31 acts on the detection unit 82, the sphere 96 arranged at the rotation blocking position hits the free end portion 95b of the stopper piece 95 to rotate the shaft portion 86. Stop. Then, the rotation of the operation piece 83, the stopper piece 95 of the blocking unit 85, and the bracket 91 of the detecting unit 82 is blocked.

The operation piece 83 whose rotation is blocked keeps the switch 81 open. Then, the electric motor 29 continues to stop, and the rotary cleaning body 28 continues to stop.

As described above, the suction port body 16 and the vacuum cleaner 1 according to the present embodiment are arranged between the connection pipe portion 32 and the bottom plate 31b of the suction port main body 31, and the suction port main body 31 is viewed in a plan view. The shaft portion 86 that straddles the connection pipe portion 32 and extends in a direction intersecting the connection pipe portion 32, a detection portion 82 provided at one end of the shaft portion 86, and a detection portion 82 provided at the other end of the shaft portion 86. It includes an operation piece 83 and a blocking unit 85. Such a safety device 43 suppresses the imbalance around the X-axis of the suction port main body 31, that is, the left and right imbalance of the suction port main body 31. Therefore, the suction port body 16 and the electric vacuum cleaner 1 reduce the contribution of the safety device 43 to the left and right imbalance of the suction port main body 31, and the parts housed in the suction port body 16, for example, the electric motor 29 and the power transmission. The restrictions on the arrangement of the mechanism 41 and the suction port body control unit 42 are relaxed, and the degree of freedom in designing the suction port body 16 is improved. Further, such a safety device 43 prevents the height dimension of the suction port main body 31 from increasing, and does not impair the shape of the connecting pipe 32 constituting the air passage. Therefore, the suction port body 16 and the vacuum cleaner 1 can secure a sufficient air passage cross-sectional area without impairing usability.

Further, the suction port body 16 and the vacuum cleaner 1 according to the present embodiment have an electric motor 29 provided at one end of the suction port main body 31 in the width direction and the other end of the suction port main body 31 in the width direction. It is provided with a pair of electric motors 29 including an electric motor 29 provided in the unit. The electric motor 29 has the largest mass among the parts housed in the suction port body 16. Therefore, the suction port body 16 and the vacuum cleaner 1 reduce the contribution of the safety device 43 to the left and right imbalance of the suction port main body 31, and the electric motor 29 to the left and right imbalance of the suction port main body 31. The degree of contribution is lowered to improve the degree of freedom in designing the suction port body 16.

Further, the suction port body 16 and the vacuum cleaner 1 according to the present embodiment include a shaft portion 86 having a torsional strength of the detection unit 82 and a torsional strength higher than the torsional strength of the operation piece 83. Therefore, the suction port body 16 and the vacuum cleaner 1 push the roller 93 into the suction port main body 31 in a state where the suction port main body 31 is turned upside down and the blocking portion 85 blocks the rotation of the shaft portion 86. The shaft portion 86 is not damaged even when an overload acts on the shaft portion 86. Further, in the suction port body 16 and the vacuum cleaner 1, the positional relationship between the operation piece 83 and the detection unit 82 (the positional relationship around the rotation center of the shaft portion 86) is broken by the twist angle of the shaft portion 86, and the switch 81. Will not be accidentally closed or the switch 81 will not be accidentally opened.

Further, the suction port body 16 and the vacuum cleaner 1 according to the present embodiment include a shaft portion 86 made of stainless steel. Therefore, the suction port body 16 and the vacuum cleaner 1 can easily and inexpensively increase the strength and torsional rigidity of the shaft portion 86.

Further, the suction port body 16 and the vacuum cleaner 1 according to the present embodiment include an integrally molded member 99 that rotationally integrates a detection unit 82, an operation piece 83, a blocking unit 85, and a shaft portion 86. Therefore, for the suction port body 16 and the vacuum cleaner 1, for example, an integrally molded member 99 having a stainless steel rod material in the shaft portion 86 itself or the core material of the shaft portion 86 can be easily adopted.

Therefore, according to the suction port body 16 according to the present embodiment, it is possible to reduce the influence on the left-right balance and improve the high degree of freedom in design. Further, the vacuum cleaner 1 can be provided with such a suction port body 16.

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 vacuum 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, 28R ... rear cleaning body, 29 ... electric motor, 29a ... output shaft, 29F ... front electric motor, 29R ... rear electric motor, 31 ... suction port main body, 31a ... bottom surface, 31b ... Bottom plate, 32 ... Connection pipe, 35 ... Lower case, 36 ... Upper case, 38 ... Rotating connection pipe, 39 ... Swing connection pipe, 41 ... Power transmission mechanism, 41F ... Front transmission mechanism, 41R ... Rear transmission mechanism, 42 ... Suction port control unit, 43 ... Safety device, 45 ... Suction room, 46 ... Cleaning body room, 46F ... Front cleaning body room, 46R ... Rear cleaning body room, 48 ... Air passage cover, 49 ... Airway narrowed body, 50 ... Roll, 51 ... Motor room, 51F ... Front motor room, 51R ... Rear motor room, 52 ... Machine room, 52F ... Front machine room, 52R ... Rear machine room, 53 ... Control room, 55 ... Safety device room, 57 ... Relay pipe, 59 ... Brush bristles, 61 ... Main drive gear, 62 ... Driven gear, 63 ... Belt, 65 ... Partition, 65F ... Front partition, 65R ... Rear partition, 66 ... Dust removal Projection, 66F ... Front projection, 66R ... Rear projection, 68 ... Curved surface, 71 ... Inclined surface, 72 ... Guide surface, 73 ... Hole, 75 ... Projection, 81 ... Switch, 82 ... Detection unit, 83 ... Operation piece , 85 ... blocking part, 86 ... shaft part, 87 ... elastic member, 91 ... bracket, 92 ... support shaft, 93 ... roller, 95 ... stopper piece, 95a ... base end part, 95b ... free end part, 96 ... sphere, 99 ... Integrally molded member.

Claims (6)

A suction port main body having a suction port and a suction chamber connected to the suction port,
A rotary cleaning body that is rotatably supported by the suction port body,
An electric motor housed in the suction port main body to generate a driving force of the rotary cleaning body, and
A pipe provided in the suction port main body and fluidly connected to the suction chamber,
A switch that opens and closes the power supply path connected to the motor,
A detection unit that can change the amount of protrusion of the suction port main body with respect to the ground contact surface and detects whether or not the suction port main body is in contact with the suction port toward the surface to be cleaned.
When the detection unit detects that the suction port main body is in contact with the suction port toward the surface to be cleaned, an operation piece that closes the switch and drives the electric motor.
A blocking portion that prevents the operation piece from closing the switch when the suction port main body is inverted.
A shaft portion for rotating and integrating the detection unit, the operation piece, and the blocking unit is provided.
The shaft portion is arranged between the pipe and the bottom plate of the suction port main body, and extends in a direction that straddles the pipe and intersects the pipe in a plan view of the suction port main body.
The detection unit is provided at one end of the shaft unit and is provided.
The operation piece and the blocking portion are suction ports provided at the other end of the shaft portion. The first aspect of claim 1 comprises a pair of the electric motors including the electric motor provided at one end in the width direction of the suction port main body and the electric motor provided at the other end portion in the width direction of the suction port main body. The suction port body described. The suction port body according to claim 1 or 2, wherein the torsional rigidity of the shaft portion is higher than the torsional rigidity of the detection unit and the torsional rigidity of the operation piece. The suction port body according to any one of claims 1 to 3, wherein the shaft portion is made of stainless steel. The suction port body according to any one of claims 1 to 4, wherein the detection unit, the operation piece, the blocking unit, and the shaft unit are rotationally integrated by an integrally molded member. 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 5, which is fluidly connected to the electric blower.

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