Suction inlet part, suction inlet body, and electric vacuum cleaner

Abstract

The invention provides a suction port part capable of effectively inhibiting dust from entering between a shell and a rotary cleaning body, a suction port body with the suction port part, and an electric dust collector with the suction port part and the suction port body. The suction port part (1) is provided with: a rotary cleaning body (11) which is rotated by a motor and cleans a part to be cleaned; and a housing (10) that rotatably supports the rotary cleaning body (11). The rotary cleaning body (11) has a dust collection part (112) at an end portion facing the housing (10), and the dust collection part (112) is provided with a plurality of wires (1120) arranged sparsely and standing in the axial direction of the rotary cleaning body (11).

Description

Technical Field

[0001] The embodiments of the present invention relate to an electric vacuum cleaner having an inlet portion of a rotating cleaning body that uses an electric motor to rotate and clean a part to be cleaned, an inlet body having the inlet portion, and an electric vacuum cleaner having the inlet portion and the inlet body. Background Technology

[0002] Conventional rotary cleaning bodies used in electric vacuum cleaners have cleaning components on their outer periphery. These cleaning components contact the area being cleaned as the vacuum rotates, thereby scraping away dust and assisting in suction cleaning. A common structure involves a gap between the housing holding the rotary cleaning body and its ends. To prevent the rotary cleaning body from locking due to dust intruding through this gap towards the shaft, low-friction components such as hook and loop fasteners, brushes, or sponges are arranged in a ring at the end of the rotary cleaning body opposite the housing to seal the gap. However, these low-friction components need to be soft to reduce frictional resistance relative to the housing, making it difficult to prevent filamentous debris, such as those attached to the cleaning components and stretched under tension as the rotary cleaning body rotates, from intruding towards the shaft.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2024-15825 Summary of the Invention

[0006] The problem to be solved by the present invention is to provide an inlet portion capable of effectively preventing dust from entering between the housing and the rotating cleaning body, an inlet body having the inlet portion, and an electric vacuum cleaner having the inlet body.

[0007] The suction inlet of the embodiment includes: a rotating cleaning body that rotates by an electric motor and cleans the part to be cleaned; and a housing that supports the rotating cleaning body so that it can rotate. The rotating cleaning body has a dust collection section at the end opposite to the housing, and the dust collection section has a plurality of sparsely arranged wires that stand upright in the axial direction of the rotating cleaning body.

[0008] Based on the above structure, dust can be effectively prevented from entering between the housing and the rotating cleaning body. Attached Figure Description

[0009] Figure 1 This is a cross-sectional view showing a portion of the inlet portion of the first embodiment.

[0010] Figure 2 (a) is a perspective view showing the dust collection section of the above-mentioned suction inlet enlarged. Figure 2(b) is a perspective view showing the dust collection unit's collection of filamentous debris.

[0011] Figure 3 This is a perspective view showing the rotating cleaning body at the aforementioned suction inlet.

[0012] Figure 4 This is a top view showing a portion of the inlet body equipped with the aforementioned inlet portion.

[0013] Figure 5 This is a perspective view showing a portion of the aforementioned inhalation port.

[0014] Figure 6 This is an exploded three-dimensional view of the aforementioned inhalation port.

[0015] Figure 7 This is a top view of the aforementioned inhalation port.

[0016] Figure 8 This is a perspective view showing an example of an electric vacuum cleaner equipped with the above-described suction inlet and suction inlet body.

[0017] Figure 9 This is a perspective view showing an example of the wire of the dust collection section of the suction port in the second embodiment.

[0018] Explanation of reference numerals in the attached figures

[0019] 1. Inhalation port

[0020] 2 Inhalation into the mouth

[0021] 3. Electric vacuum cleaner

[0022] 10. Shell

[0023] 11 Rotary cleaning body

[0024] 111 Cleaning Department

[0025] 112 Dust Collection Department

[0026] 1120 wire

[0027] 1130 Inner flange portion

[0028] 1131 Outer flange

[0029] 11200 bend

[0030] A rotation axis Detailed Implementation

[0031] (First Implementation)

[0032] The first embodiment will now be described with reference to the accompanying drawings.

[0033] exist Figures 4 to 7 In this figure, 1 represents the suction port. In this embodiment, an example is shown where the suction port 1 is applied to the suction port body 2. Hereinafter, the forward, backward, left, right, and up / down directions are defined based on the state where the suction port body 2 is used on a horizontal part to be cleaned. In the accompanying drawings, the direction of arrow FR is forward, the direction of arrow RR is backward, the direction of arrow L is left, the direction of arrow R is right, the direction of arrow U is upward, and the direction of arrow D is downward.

[0034] The suction port 1 includes: a housing 10; and a rotating cleaning body 11, which is rotatably supported on the housing 10.

[0035] The housing 10 is essentially box-shaped, covering the front, rear, sides, and top, with a portion of the lower part open as an intake for drawing in dust. The housing 10 is hollow, formed by multiple outer shell components fixed together. For example, the housing 10 is elongated in the left-right direction, i.e., it is horizontally elongated.

[0036] Inside the housing 10 are respectively arranged an electric motor for rotating the rotary cleaning body 11, a control unit for controlling the rotation of the electric motor, and a transmission unit for transmitting the power of the electric motor to the rotary cleaning body 11. In addition, a contact detection unit for detecting the contact between the suction port 1 or the suction port body 2 and the part being cleaned can be arranged in the housing 10.

[0037] For example, the housing 10 includes a motor chamber for housing the electric motor, a control chamber for housing the control unit, and a cleaning body chamber for housing the rotating cleaning body 11. The cleaning body chamber is located at the front of the housing 10, preferably at the very front. In the illustrated example, the cleaning body chamber is covered by a cover 100 that forms part of the housing 10, covering the upper and left and right sides, with at least a lower opening through which the entire lower part of the rotating cleaning body 11 is exposed. In this embodiment, the cleaning body chamber has a partial opening from the lower part to the lower side of the front. The cleaning body chamber communicates with a suction port. The lower opening of the cleaning body chamber can be formed as a suction port.

[0038] A support portion 101 is disposed in the cleaning chamber as part of the housing 10 that supports the rotating cleaning body 11 to enable rotation. The support portion 101 extends in the front-rear direction and is located opposite the side of the rotating cleaning body 11. The support portion 101 communicates with the motor chamber, and a transmission portion is disposed throughout the motor chamber and the support portion 101. For example, the transmission portion includes: a transmission body 102 as a drive gear, which is rotatably supported on the support portion 101; and a transmission member such as an annular belt, which connects the transmission body 102 and the output shaft of the motor. The transmission body 102 has a support shaft portion 1020 as a shaft portion protruding into the cleaning chamber, and the rotating cleaning body 11 is integrally connected to the support shaft portion 1020. In this embodiment, the support portion 101 is located at the center of the housing 10 in the left-right direction, and becomes a wall portion that divides the cleaning chamber in the left-right direction. Furthermore, the transmission body 102 supported on the support portion 101 has support shaft portions 1020 on both the left and right sides, and the rotating cleaning bodies 11 are respectively supported on the aforementioned support shaft portions 1020. Therefore, in this embodiment, the paired rotating cleaning bodies 11 are cantilevered and supported on the support portion 101 by means of the transmission body 102, forming a structure that rotates integrally in the same direction. It is not limited to this, and can also be formed in a structure where the support portion 101 forms the left and right sides of the housing 10, and both ends of a rotating cleaning body 11 are supported by the support portion 101 to be rotatable. In this case, the transmission body 102 can be disposed on any one of the support portions 101.

[0039] Furthermore, the rotating cleaning body 11, driven by an electric motor and via a transmission section, scrapes and / or removes dust from the area being cleaned, thereby aiding in suction cleaning. For example... Figure 3 As shown, the rotating cleaning body 11 has: a cleaning body main body 110; and a cleaning part 111 disposed on the cleaning body main body 110.

[0040] The main body 110 of the cleaning body is a support platform for mounting the cleaning unit 111. The main body 110 of the cleaning body is formed into an elongated cylindrical shape that is longer in the axial direction, and is integrally mounted on... Figure 4 and Figure 5 The support shaft portion 1020 of the transmission body 102 is shown. In this embodiment, the rotating cleaning body 11 is connected to the transmission part by inserting the support shaft portion 1020 of the transmission body 102 into the inner circumference of the cleaning body main body portion 110. In the state of being connected to the transmission part, the end of the cleaning body main body portion 110 on the transmission part side approaches and faces the support portion 101 of the housing 10.

[0041] A cleaning section 111 is disposed on the outer periphery of the main body 110 of the cleaning body. The cleaning section 111 is a brush, scraper, or the like that that can contact the part to be cleaned, and is configured to scrape away dust from the part to be cleaned by contacting it. The cleaning section 111 is disposed in a wall-like manner between the two ends of the main body 110 of the cleaning body, and has an integral cleaning range between the two ends of the main body 110 of the cleaning body in the axial direction. In the illustrated example, the cleaning section 111 is disposed in a spiral shape that twists along the circumference of the main body 110 of the cleaning body. Preferably, the cleaning section 111 twists toward the direction away from the support portion 101 of the housing 10 and toward the rearward direction of the rotation of the rotating cleaning body 11. For example, the rotating cleaning body 11 on the left twists toward the left and rearward, and the rotating cleaning body 11 on the right twists toward the right and rearward. The cleaning sections 111 are disposed at intervals at multiple locations along the circumference of the main body 110 of the cleaning body. Regarding the multiple cleaning parts 111, they can be of the same type, or at least one cleaning part 111 can be different from the other cleaning parts 111 in terms of type, length, hardness, bristle density, etc. Not limited to this, the cleaning parts 111 can also be configured to cover the entire outer peripheral surface of the main body 110 of the cleaning body.

[0042] Furthermore, regarding the rotary cleaning body 11, a dust collection section 112 is provided at least at the end of the main body 110 of the cleaning body, which faces the support portion 101. In this embodiment, the support portion 101 is configured to be located only at one end of the rotary cleaning body 11; therefore, the dust collection section 112 is located only at one end of the rotary cleaning body 11. However, this is not a limitation; if the support portion 101 is located at both ends of the rotary cleaning body 11, the dust collection section 112 can be provided at both ends of the rotary cleaning body 11.

[0043] The dust collection unit 112 inhibits the intrusion of ordinary dust, as well as fibrous debris such as human hair, pet hair, or lint, into the shaft. For example... Figure 1 and Figure 2 As shown in (a), the dust collection section 112 has a plurality of sparsely arranged wires 1120. That is, the dust collection section 112 is not substantially formed into a wall-like structure like hook and loop fasteners or sponges; the base ends of the wires 1120 are intermittently arranged such that there is space between the wires 1120 to accumulate filamentous debris. For example, regarding the dust collection section 112, the arrangement spacing of the base ends is set to a predetermined ratio or higher relative to the thickness of the wires 1120. The positions of the base ends of the wires 1120 can be regular or irregular, but the deviation in the number of wires 1120 per unit area at any position of the dust collection section 112 where the wires 1120 are not biased, i.e., at any position of the dust collection section 112, is set to a predetermined value or lower. Furthermore, in Figure 1 In order to illustrate this clearly, the thickness and density of the wire 1120 are exaggerated. Figure 2 (b) and Figure 3 The image shows wire 1120 in a simplified manner.

[0044] Figure 1 and Figure 2 (a) The wire 1120 shown is made of, for example, a rigid synthetic resin such as nylon. The wire 1120 has, for example, a diameter of about 160 μm. In this embodiment, the wire 1120 is formed as a straight line or approximately a straight line and stands upright in the axial direction of the rotating cleaning body 11. Preferably, the wire 1120 is randomly inclined relative to the axial direction of the rotating cleaning body 11. That is, the direction of each wire 1120 has a component at least along the axial direction of the rotating cleaning body 11, and preferably, it arbitrarily has components in two directions orthogonal to and mutually orthogonal to the axial direction, so that the multiple wires 1120 as a whole are not biased in a particular direction. In addition, the length of the multiple wires 1120 can be constant or may be offset. Furthermore, the ends of the multiple wires 1120 may be offset in the axial direction of the rotating cleaning body 11, or they may be aligned in the axial direction of the rotating cleaning body 11.

[0045] In the illustrated example, the end of wire 1120 is close to housing 10. In this embodiment, the end of wire 1120 is close to the side of support portion 101 of housing 10. The end of wire 1120 closest to the side of support portion 101 of housing 10 is separated from the side of housing 10 or support portion 101 by a small gap G, and is configured such that dust cannot enter through this gap G. For example, the gap G is set to be less than the diameter of wire 1120. Furthermore, the gap G is exaggerated in the drawings for clarity. It is not limited to this, the end of wire 1120 may also contact housing 10.

[0046] like Figure 1 and Figure 3 As shown, the dust collection section 112 is formed in an approximately annular shape surrounding the rotation axis A of the rotating cleaning body 11. Here, "approximately annular" includes not only annular shapes that are completely connected circumferentially to the cleaning body main body 110 of the rotating cleaning body 11, but also, for example, partially discontinuous annular shapes, or structures intermittently arranged in annular regions such as C-shapes. In this embodiment, the dust collection section 112 is formed in a coaxial or approximately coaxial annular shape relative to the cleaning body main body 110 of the rotating cleaning body 11. Furthermore, the dust collection section 112 is located in a strip-like shape over a predetermined width throughout the radial direction.

[0047] In this embodiment, the base end of the wire 1120 is held to the substrate 1121. The substrate 1121 is flexible, for example, formed into a thin film, and is attached to one end face of the cleaning body body 110 by means of a fastening component such as an adhesive or double-sided tape.

[0048] In this embodiment, a limiting portion 113 is formed at the end of the cleaning body main body 110 where the dust collecting portion 112 is disposed, which limits the radial position of the dust collecting portion 112. The limiting portion 113 has at least one of the following components: an inner flange portion 1130, which limits the radially inner position of the dust collecting portion 112; and an outer flange portion 1131, which limits the radially outer position of the dust collecting portion 112.

[0049] The inner flange 1130 is located along the inner edge of the annular dust collection section 112. The outer flange 1131 is located along the outer edge of the annular dust collection section 112. The inner flange 1130 and the outer flange 1131 stand upright along the axial direction of the main body of the cleaning body 110.

[0050] The inner flange portion 1130 and the outer flange portion 1131 are formed into an approximately annular shape. Similar to the dust collection portion 112, the inner flange portion 1130 and the outer flange portion 1131 include not only annular shapes that are completely connected circumferentially to the main body portion 110 of the rotating cleaning body 11, but also annular shapes with partial cuts, partially missing annular shapes, C-shaped semi-annular shapes, and structures that are discontinuously arranged in annular regions. In this embodiment, the inner flange portion 1130 and the outer flange portion 1131 are arranged in a coaxial or approximately coaxial annular shape relative to the main body portion 110 of the rotating cleaning body 11. Therefore, regarding the illustrated limiting portion 113, there is an annular groove between the inner flange portion 1130 and the outer flange portion 1131.

[0051] In the accompanying drawings, the inner flange 1130 protrudes more in the axial direction of the rotating cleaning body 11 than the outer flange 1131, and its end portion is positioned closer to the side of the support portion 101 of the housing 10. However, this is not a limitation; the relationship between the protrusion amount or length of the inner flange 1130 and the outer flange 1131 in the axial direction of the rotating cleaning body 11 can be arbitrarily set.

[0052] However, the inner flange 1130 and the outer flange 1131 are respectively configured so that they do not protrude beyond the end of the wire 1120 of the dust collection part 112 in the axial direction of the rotating cleaning body 11. That is, the end of the wire 1120 protrudes beyond the end of the limiting part 113, i.e. the end of the inner flange 1130 and the end of the outer flange 1131, in the axial direction of the rotating cleaning body 11, thereby getting closer to the side of the support part 101 of the housing 10.

[0053] In this embodiment, an auxiliary cleaning part 114, such as brush bristles, capable of contacting the part to be cleaned, is separately arranged at the other end of the main body 110 of the cleaning body, along with the cleaning part 111 and the dust collection part 112. The auxiliary cleaning part 114 is a corner cleaning part located near the side of the suction inlet 1 or suction inlet body 2, configured to protrude radially from the main body 110 of the cleaning body and contact the part to be cleaned to scrape away dust. The auxiliary cleaning part 114 surrounds the rotation axis A of the rotating cleaning body 11 and is arranged in a ring shape. However, this is not a limitation; alternatively, the dust collection part 112 may be arranged at the other end of the main body 110 of the rotating cleaning body 11, opposite the cover 100.

[0054] Moreover, such as Figure 7 As shown, the suction port body 2, which has the suction port 1, is also called a floor brush, vacuum cleaner head, etc. The suction port body 2 is detached and reassembled via a connecting tube 20, such as... Figure 8 As shown, this is applied to an electric vacuum cleaner 3. In this embodiment, regarding the electric vacuum cleaner 3, an example of a suction-type electric vacuum cleaner 3 can be cited: an electric blower 31, which serves as a suction source, is provided in the vacuum cleaner body 30, and the negative pressure generated by driving the electric blower 31 draws dust and air together from the suction inlet 2 into the separation section 32. The electric vacuum cleaner 3 can also be configured as a floor-walking type, or a canister type, stick type, upright type, handheld type, or self-propelled electric vacuum cleaner, etc. In the illustrated example, a stick type electric vacuum cleaner 3 is shown. In the illustrated example, the suction inlet 2 is connected to the vacuum cleaner body 30 mechanically or fluidly via a connecting pipe 20, either indirectly or directly, through a pipe 33 such as an extension tube. The operation of the electric blower 3 and the operation of the rotating cleaning body 11 or the motor are set by the user through the operation of the operation switch 34. The operation switch 34 is provided in the vacuum cleaner body 30 or in the handle 35 for holding and operating. Furthermore, the vacuum cleaner body 30 is equipped with a main control unit 36 ​​that operates the electric blower 31 according to the operation set by the operation switch 34. The main control unit 36 ​​is electrically connected to the control unit of the suction inlet 1. Additionally, some or all of the functions of the control unit can be integrated with the main control unit 36. The electric vacuum cleaner 3 also includes a power supply unit 37 as a power supply unit. In this embodiment, the power supply unit 37 is a rechargeable battery or a secondary battery, but it is not limited to these; it can also be an AC-DC adapter, a cord rewinding device, or the like that that obtains power from an external power source such as a commercial power supply. The power supply unit 37 can supply power to the electric blower 31 and the main control unit 36, etc., located in the vacuum cleaner body 30. In this embodiment, the power supply unit 37 can also supply power to the motor and control unit of the suction inlet 1 of the suction inlet body 2.

[0055] Next, the cleaning action of the electric vacuum cleaner 3 according to one embodiment will be described.

[0056] During cleaning, the user holds the handle 35 and operates the operation switch 34, thereby starting the electric blower 31 via the main control unit 36. With the suction inlet 2 placed on the part to be cleaned, the control unit starts the rotating cleaning body 11 via the electric motor. The negative pressure generated by the operation of the electric blower 31 acts on the suction inlet of the pipe body 33, suction inlet 1, or suction inlet 2 via the separation unit 32. The user uses the handle 35 to move the suction inlet 2 alternately back and forth on the part to be cleaned, so that dust on the part to be cleaned is sequentially drawn into the separation unit 32 along with air through the suction inlet and via the connecting pipe 20 and pipe body 33. Furthermore, as the rotating cleaning body 11 rotates, the cleaning part 111 and the auxiliary cleaning part 114 contact the part to be cleaned, drawing in dust scraped or removed from the part through the suction inlet. The dust-laden air drawn into the separation unit 32 separates and collects the dust. After the dust is separated, the air is cooled by the electric blower 31 and then discharged to the outside of the vacuum cleaner body 30.

[0057] The operation of the rotary cleaning body 11 will be described in more detail. The rotary cleaning body 11 rotates integrally with the transmission unit by transmitting the rotation of the motor 10. The cleaning section 111, occupying more than half of the axial length of the rotary cleaning body 11, is twisted into a spiral shape in the circumferential direction. Therefore, the cleaning section 111, which contacts the part to be cleaned, continuously contacts the part to be cleaned as the rotary cleaning body 11 rotates, removing dust from the part to be cleaned within the left-right direction where the cleaning section 111 is located. Regarding the auxiliary cleaning section 114, since it is close to both sides of the housing 10, it can, for example, transport the part to be cleaned from the side of the suction inlet 2 to corners or other areas of the room, thereby causing the auxiliary cleaning section 114 to contact the part to be cleaned and remove dust from the corner area.

[0058] The dust collection section 112 of the rotary sweeper 11 rotates at high speed as the rotary sweeper 11 rotates to maintain a small gap between the wire 1120 and the support section 101 of the housing 10. Therefore, the wire 1120 of the dust collection section 112 acts as a barrier wall, preventing dust from entering the rotation axis A side of the rotary sweeper 11. Furthermore, regarding filamentous debris, it is essentially conveyed away from the dust collection section 112 by the twisting of the sweeper 111 and sucked into the suction port. Regarding filamentous debris S approaching the dust collection section 112, such as… Figure 2 As shown in (b), it enters the space between the wires 1120 and gets caught and wrapped around the wires 1120. The wrapped filamentous waste S accumulates in the space between the wires 1120.

[0059] Thus, at the end of the rotating cleaning body 11 opposite to the housing 10, there is a dust collection section 112. This dust collection section 112 has a plurality of sparsely arranged wires 1120 that stand upright in the axial direction of the rotating cleaning body 11. The wires 1120 of the dust collection section 112 prevent dust from entering between the housing 10 and the rotating cleaning body 11, and cause filamentous debris to become entangled as the rotating cleaning body 11 rotates, effectively suppressing dust from entering between the housing 10 and the rotating cleaning body 11. Therefore, it is possible to suppress undesirable conditions such as locking of the rotating cleaning body 11 caused by filamentous debris becoming entangled in the conveyor 102, support shaft 1020, etc.

[0060] Furthermore, since the end of the wire 1120 is close to the housing 10, it is difficult for dust to enter through the gap G relative to the housing 10. This allows filamentous debris to be actively guided towards the end of the wire 1120 by wrapping around it using this tiny gap G, without generating a rotational load on the rotating cleaning body 11 due to sliding contact with the housing 10. Moreover, because the wire 1120 does not slide against the housing 10, it can be formed from a rigid material, thus preventing bending even when subjected to tension on the filamentous debris and enabling effective wrapping of the debris.

[0061] The wire 1120 is made of synthetic resin and is randomly tilted relative to the axis of the rotating cleaning body 11. Therefore, the tilt of the wire 1120 does not produce directionality and does not produce a deviation in the direction in which dust can easily enter.

[0062] By forming the dust collection section 112 into an approximately annular shape that surrounds the rotation axis A of the rotating sweeper 11, the dust collection section 112 can cover approximately the entire circumference of the rotating sweeper 11, preventing the formation of directions in which dust can easily enter.

[0063] The inner flange 1130, located along the inner edge of the dust collection section 112, is not allowed to protrude beyond the end of the wire 1120 in the axial direction of the rotating cleaning body 11. Therefore, the inner flange 1130 can prevent the end of the wire 1120 of the dust collection section 112 from functioning on approaching filamentous debris.

[0064] The cleaning section 111 of the rotating cleaning body 11 is rotated in the direction away from the dust collection section 112 and in the direction of rotation of the rotating cleaning body 11. Therefore, the filamentous debris is guided by the cleaning section 111 away from the dust collection section 112 and transported to the suction port as the rotating cleaning body 11 rotates. Furthermore, the filamentous debris approaching the dust collection section 112 can be reliably collected by the dust collection section 112.

[0065] The outer flange 1131, located along the outer edge of the dust collection section 112, is not allowed to protrude beyond the end of the wire 1120 in the axial direction of the rotating cleaning body 11. Therefore, the outer flange 1131 can prevent the end of the wire 1120 of the dust collection section 112 from functioning on approaching filamentous debris.

[0066] (Second Implementation)

[0067] Next, refer to Figure 9 The second embodiment will be described. Furthermore, for structures and functions identical to those in the first embodiment, the same reference numerals will be used, and their descriptions will be omitted.

[0068] In this embodiment, the dust collection section 112 has a hook-shaped bend 11200 formed at the end of the wire 1120. Therefore, the dust collection section 112 is formed as a hook-like component with a flat snap fastener. The wire 1120 stands upright in the axial direction of the rotating cleaning body 11, and the bending direction of the bend 11200 at its end is randomly set. The direction in which the wire 1120 stands upright can be the same or different.

[0069] Furthermore, during cleaning, the dust collection section 112 rotates at high speed along with the rotation of the rotating cleaning body 11 to maintain the suction gap between the wire 1120 and the support section 101 of the housing 10, thereby preventing dust from entering the rotation axis A side of the rotating cleaning body 11. Also, filamentous debris approaching the dust collection section 112 gets stuck and tangled in the wire 1120 because it enters the space between the bends 11200 of the wire 1120.

[0070] Thus, the rotating cleaning body 11 has a dust collection section 112 at the end opposite to the housing 10. The dust collection section 112 has a plurality of wires 1120 sparsely arranged and erected in the axial direction of the rotating cleaning body 11, thereby having the same structure as the first embodiment. As a result, it is possible to effectively suppress dust from entering between the housing 10 and the rotating cleaning body 11, and achieve the same effect as the first embodiment.

[0071] In addition, since the bend 11200 is tilted in any direction, the tilt of the end of the wire 1120 does not produce directionality and does not cause a deviation in the direction in which dust can easily enter.

[0072] In various embodiments, the suction port 1 can also be applied to autonomous electric vacuum cleaners 3 that do not have a suction port, such as robotic vacuum cleaners. In this case, it is sufficient as long as the housing 10 is integrally disposed with the vacuum cleaner body of the electric vacuum cleaner 3.

[0073] Several embodiments of the present invention have been described, but these embodiments are provided by way of example and are not intended to limit the scope of the invention to these embodiments. The above-described new embodiments can also be implemented in various other ways, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. The above-described embodiments and their variations are included in the scope and spirit of the invention, and are included within the scope of the invention as described in the claims and its equivalents.

Claims

1. An inhalation port, characterized in that, The inlet portion includes: A rotating sweeping body, which is powered by an electric motor, sweeps the area to be cleaned; and A housing that supports the rotating cleaning body so that it can rotate. The rotating cleaning body has a dust collection section at the end opposite to the housing, the dust collection section having a plurality of sparsely arranged wires that stand upright in the axial direction of the rotating cleaning body.

2. The inhalation port according to claim 1, characterized in that, The end of the wire is close to the housing.

3. The inhalation port according to claim 1, characterized in that, The wire is made of synthetic resin and is randomly tilted relative to the axis of the rotating cleaning body.

4. The inhalation port according to claim 1, characterized in that, The wire has a hook-shaped bend at its end, and the bend direction is random.

5. The inhalation port according to claim 1, characterized in that, The dust collection section is formed in an approximately annular shape that surrounds the rotation axis of the rotating cleaning body.

6. The inhalation port according to claim 5, characterized in that, The rotating cleaning body has an inner flange located along the inner edge of the dust collection section. The inner flange does not protrude beyond the end of the wire in the axial direction of the rotating cleaning body.

7. The inhalation port according to claim 1, characterized in that, The rotating cleaning body has a cleaning section on its outer periphery for cleaning the area to be cleaned. The cleaning section is oriented away from the dust collection section and twisted to the rear in the direction of rotation of the rotating cleaning body.

8. The inhalation port according to claim 5, characterized in that, The rotating cleaning body has an outer flange located along the outer edge of the dust collection section. The outer flange does not protrude beyond the end of the wire in the axial direction of the rotating cleaning body.

9. An inhalation mouthpiece, characterized in that, The inhalation port body has an inhalation port portion as described in any one of claims 1 to 8.

10. An electric vacuum cleaner, characterized in that, The electric vacuum cleaner has the suction inlet body as described in claim 9.

11. An electric vacuum cleaner, characterized in that, The electric vacuum cleaner has an inlet portion as described in any one of claims 1 to 8.

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