Suction port, suction port body and vacuum cleaner

Abstract

A suction port part that can effectively prevent dust from entering between a case body and a rotary cleaning body, a suction port body having the same, and an electric vacuum cleaner equipped with them are provided. [Solution] The suction port 1 comprises a rotary cleaning body 11 that is rotated by an electric motor to clean the part to be cleaned, and a case body 10 that rotatably supports the rotary cleaning body 11. The rotary cleaning body 11 has a dust collection part 112 at its end facing the case body 10, which includes a plurality of wires 1120 that are sparsely arranged and stand upright in the axial direction of the rotary cleaning body 11.

Description

[Technical Field]

[0001] An embodiment of the present invention relates to a suction port unit having a rotary cleaning body that is rotated by an electric motor to clean a part to be cleaned, a suction port unit having the same, and an electric vacuum cleaner having the same. [Background technology]

[0002] Conventionally, rotary cleaning bodies used in vacuum cleaners have a cleaning element on their outer periphery, which comes into contact with the surface to be cleaned as the cleaning element rotates, scraping off dust from the surface to be cleaned and assisting in suction cleaning. When there is a gap between the case body that holds the rotary cleaning body and the end of the rotary cleaning body, in order to prevent the rotary cleaning body from locking due to dust entering the shaft side of the rotary cleaning body through the gap, a low-friction member such as a napped cloth, a bristle brush, or a sponge is arranged in an annular shape at the end of the rotary cleaning body facing the case body to close the gap between the case body and the end of the rotary cleaning body. However, the low-friction member needs to be soft to reduce frictional resistance with the case body, making it difficult to prevent, for example, thread-like debris adhering to the cleaning element and pulled and subjected to tension as the rotary cleaning body rotates from entering the shaft side. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2024-15825 Summary of the Invention [Problem to be solved by the invention]

[0004] The problem that the present invention aims to solve is to provide a suction port portion that can effectively prevent dust from entering between the case body and the rotating cleaning body, a suction port body having the same, and an electric vacuum cleaner that is equipped with these. [Means for solving the problem]

[0005] The suction port of the embodiment includes a rotary cleaning body that is rotated by an electric motor to clean the part to be cleaned, and a case that rotatably supports the rotary cleaning body. The rotary cleaning body has a dust collection part at its end facing the case, the dust collection part including a plurality of sparsely arranged wire rods that stand up in the axial direction of the rotary cleaning body. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 2 is a cross-sectional view showing a part of the air inlet portion of the first embodiment. [Figure 2] 1A is an enlarged perspective view of the dust collection section of the suction port of the same, and FIG. 1B is a perspective view showing the state in which thread-like dust is collected by the dust collection section. [Figure 3] FIG. 2 is a perspective view showing a rotary cleaning body of the suction port portion of the same. [Figure 4] FIG. 2 is a plan view showing a part of the suction port body including the same suction port portion. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. 2 is a perspective view showing an example of an electric vacuum cleaner including the same suction mouth portion and suction mouth body. [Figure 9] 10A and 10B are perspective views showing examples of wire materials of a dust trapping portion of a suction port portion of a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0007] (First embodiment) The first embodiment will be described below with reference to the drawings.

[0008] 4 to 7, reference numeral 1 denotes a suction port. In this embodiment, an example is shown in which suction port 1 is applied to suction port body 2. Hereinafter, the front-rear, left-right, and up-down directions are defined based on the state in which suction port body 2 is used on a horizontal object to be cleaned. In the figures, the arrow FR direction is the forward direction, the arrow RR direction is the rearward direction, the arrow L direction is the leftward direction, the arrow R direction is the rightward direction, the arrow U direction is the upward direction, and the arrow D direction is the downward direction.

[0009] The suction port 1 includes a case body 10 and a rotary cleaning body 11 rotatably supported by the case body 10.

[0010] The case body 10 is basically formed in a box shape with the front, rear, both sides, and top covered and part of the bottom open as an inlet for sucking in dust. The case body 10 is formed by fixing a plurality of case members together and is hollow. For example, the case body 10 is formed long in the left-right direction, i.e., horizontally long.

[0011] Inside the case body 10, there are arranged an electric motor for rotating the rotary cleaning body 11, a control unit for controlling the rotation of the electric motor, a transmission unit for transmitting the power of the electric motor to the rotary cleaning body 11, etc. Additionally, the case body 10 may also be arranged with a contact detection means for detecting contact between the suction port 1 or the suction port body 2 and the part to be cleaned.

[0012] For example, the case body 10 is formed with an electric motor chamber that houses the electric motor, a control chamber that houses the control unit, and a cleaning body chamber that houses the rotary cleaning body 11. The cleaning body chamber is located in the front part of the case body 10, preferably in the forefront part. In the illustrated example, the cleaning body chamber is covered at the top and both left and right sides by a cover body 100 that forms part of the case body 10, and at least the bottom part is open, and the entire bottom of the rotary cleaning body 11 is exposed from this bottom opening. In this embodiment, the cleaning body chamber is open from the bottom to the lower front part. The cleaning body chamber communicates with a suction port. The opening at the bottom of the cleaning body chamber may also serve as the suction port.

[0013] A support portion 101, which is a part of the case body 10 for rotatably supporting the rotary cleaning body 11, is disposed in the cleaning body chamber. The support portion 101 extends in the front-rear direction and is positioned opposite the side of the rotary cleaning body 11. The support portion 101 communicates with the motor chamber, and a transmission portion is disposed between the motor chamber and the support portion 101. For example, the transmission portion includes a transmission body 102, which is a drive gear rotatably supported by the support portion 101, and a transmission member such as an endless belt that connects the transmission body 102 to the output shaft of the motor. The transmission body 102 has a support shaft portion 1020, which is a shaft portion that protrudes into the cleaning body chamber, and the rotary cleaning body 11 is integrally connected to the support shaft portion 1020. In this embodiment, the support portion 101 is located in the center of the case body 10 in the left-right direction and serves as a wall portion that divides the cleaning body chamber into left and right halves. The transmission body 102 supported by the support part 101 has support shaft parts 1020 on both the left and right sides, and the rotary cleaning bodies 11 are supported on these support shaft parts 1020. Therefore, in this embodiment, the pair of rotary cleaning bodies 11 are each cantilevered by the support part 101 via the transmission body 102 and rotate integrally in the same direction. However, the configuration is not limited to this, and the support part 101 may form both the left and right sides of the case body 10, and both ends of one rotary cleaning body 11 may be rotatably supported by the support part 101. In this case, the transmission body 102 may be disposed on either one of the support parts 101.

[0014] The rotary cleaning body 11, driven by an electric motor via a transmission unit, rotates to scrape and / or scrape out dust from the area to be cleaned, thereby assisting in suction cleaning. As shown in Fig. 3, the rotary cleaning body 11 has a cleaning body main body 110 and a cleaning unit 111 arranged on the cleaning body main body 110.

[0015] The cleaning element main body 110 is a support base on which the cleaning part 111 is attached. The cleaning element main body 110 is formed in a longitudinal cylindrical shape that is long in the axial direction, and is attached integrally to the support shaft 1020 of the transmission body 102 shown in FIGS. 4 and 5. In this embodiment, the support shaft 1020 of the transmission body 102 is inserted into the inner periphery of the cleaning element main body 110 and attached, thereby connecting the rotating cleaning element 11 to the transmission part. When connected to the transmission part, the end of the cleaning element main body 110 on the transmission part side faces the support part 101 of the case body 10 in close proximity.

[0016] Cleaning parts 111 are arranged on the outer periphery of the cleaning element main body 110. The cleaning parts 111 are brushes, blades, or the like that can come into contact with the part to be cleaned and are configured to scrape dust from the part to be cleaned by contacting the part. The cleaning parts 111 are arranged in a continuous wall shape between both ends of the cleaning element main body 110, and have a cleaning range that extends across the entire axial length of the cleaning element main body 110. In the illustrated example, the cleaning parts 111 are arranged in a spiral shape that is twisted in the circumferential direction of the cleaning element main body 110. Preferably, the cleaning parts 111 are twisted toward the rear side in the rotational direction of the rotating cleaning element 11, moving away from the support part 101 of the case body 10. For example, the left rotating cleaning element 11 is twisted backward toward the left, and the right rotating cleaning element 11 is twisted backward toward the right. The cleaning parts 111 are arranged at intervals at multiple locations around the circumferential direction of the cleaning element main body 110. The multiple cleaning parts 111 may be of the same type, or at least one of the cleaning parts 111 may be of a different type, length, hardness, amount of bristles, etc. from the remaining cleaning parts 111. Without being limited to this, the cleaning parts 111 may be arranged to cover the entire outer peripheral surface of the cleaning element main body 110, for example.

[0017] Furthermore, in the rotary cleaning body 11, a dust collection part 112 is disposed at least at the end of the cleaning body main body 110 facing the support part 101. In this embodiment, the support part 101 is configured to be located only on one end side of the rotary cleaning body 11, and therefore the dust collection part 112 is located only at one end of the rotary cleaning body 11. However, this is not limiting, and if the support part 101 is located at both ends of the rotary cleaning body 11, the dust collection part 112 may be disposed at both ends of the rotary cleaning body 11.

[0018] The dust collection unit 112 prevents general dust and thread-like debris such as human hair, animal hair (such as pet hair), and lint from entering the shaft. As shown in FIGS. 1 and 2(a), the dust collection unit 112 includes a plurality of sparsely arranged wires 1120. In other words, the dust collection unit 112 does not have a substantially wall-like structure like a raised cloth or sponge, but the base ends of the wires 1120 are arranged intermittently so as to provide spaces between the wires 1120 that can entangle and collect thread-like debris. For example, in the dust collection unit 112, the ratio of the spacing between the base ends of the wires 1120 to the thickness of the wires 1120 is set to a predetermined ratio or greater. The positions of the base ends of the wires 1120 may be regular or irregular, but are set so that the wires 1120 are positioned evenly in the dust collection section 112, that is, so that the variation in the number of wires 1120 arranged per unit area at any position in the dust collection section 112 is less than a predetermined value. Note that in Fig. 1, for clarity of explanation, the thickness and sparseness of the wires 1120 are exaggerated, and in Fig. 2(b) and Fig. 3, etc., the wires 1120 are shown simply.

[0019] The wire 1120 shown in FIGS. 1 and 2(a) is made of a hard synthetic resin such as nylon. The wire 1120 has a diameter of, for example, approximately 160 μm. In this embodiment, the wire 1120 is formed in a straight or approximately straight shape and stands in the axial direction of the rotary cleaning body 11. Preferably, the wire 1120 is randomly inclined with respect to the axial direction of the rotary cleaning body 11. That is, the direction of each of the wires 1120 has at least a component along the axial direction of the rotary cleaning body 11, and preferably has components in two directions perpendicular to the axial direction and perpendicular to each other, so that the multiple wires 1120 as a whole are not biased in a specific direction. The lengths of the multiple wires 1120 may be uniform or may vary. Furthermore, the tips of the multiple wires 1120 may vary along the axial direction of the rotary cleaning body 11 or may be aligned along the axial direction of the rotary cleaning body 11.

[0020] In the illustrated example, the tip of the wire 1120 is close to the case body 10. In this embodiment, the tip of each of the wires 1120 is close to a side surface of the support portion 101 of the case body 10. The tip of the wire 1120 closest to the side surface of the support portion 101 of the case body 10 is separated from the side surface of the case body 10 or the support portion 101 by a small gap G, which is set to prevent dust from entering through the gap G. For example, the gap G is set to be equal to or smaller than the diameter of the wire 1120. Note that the gap G is exaggerated in the drawing for clarity. However, this is not limiting, and the tip of the wire 1120 may be in contact with the case body 10.

[0021] 1 and 3, the dust collection part 112 is formed in a substantially annular shape surrounding the rotation axis A of the rotary cleaning body 11. Here, "substantially annular" does not only mean a ring that is completely continuous in the circumferential direction of the cleaning element main body 110 of the rotary cleaning body 11, but also includes, for example, a ring that is partially discontinuous, or a configuration in which the dust collection part 112 is intermittently arranged in a C-shaped or other annular region. In this embodiment, the dust collection part 112 is formed in a circular ring shape that is coaxial or substantially coaxial with the cleaning element main body 110 of the rotary cleaning body 11. Furthermore, the dust collection part 112 is positioned in a band shape in a region spanning a predetermined width in the radial direction.

[0022] In this embodiment, the base end of the wire 1120 is held by a base material 1121. The base material 1121 is flexible and formed, for example, in the shape of a thin film, and is attached to one end surface of the cleaning element main body 110 via a fixing member such as an adhesive or double-sided tape.

[0023] In this embodiment, a restricting portion 113 is formed at the end of the cleaning element main body 110 where the dust collection portion 112 is disposed, to restrict the radial position of the dust collection portion 112. The restricting portion 113 has at least one of an inner flange portion 1130 that restricts the radially inner position of the dust collection portion 112 and an outer flange portion 1131 that restricts the radially outer position of the dust collection portion 112.

[0024] The inner flange 1130 is located along the inner edge of the annular dust collection part 112. The outer flange 1131 is located along the outer edge of the annular dust collection part 112. The inner flange 1130 and the outer flange 1131 each rise up along the axial direction of the cleaning element main body 110.

[0025] The inner flange portion 1130 and the outer flange portion 1131 are formed in a substantially annular shape. Like the dust collection portion 112, the inner flange portion 1130 and the outer flange portion 1131 may be not only a completely continuous annular shape in the circumferential direction of the cleaning element main body 110 of the rotary cleaning body 11, but also an annular shape with a partial notch, an annular shape with a missing portion, a semi-annular shape such as a C-shape, or a configuration in which the flange portions are intermittently arranged in an annular region. In this embodiment, the inner flange portion 1130 and the outer flange portion 1131 are arranged in a circular annular shape coaxial or substantially coaxial with the cleaning element main body 110 of the rotary cleaning body 11. Therefore, the illustrated restriction portion 113 forms a circular groove between the inner flange portion 1130 and the outer flange portion 1131.

[0026] In the drawing, inner flange portion 1130 protrudes more in the axial direction of rotary cleaning body 11 than outer flange portion 1131, and its tip is located closer to the side surface of support portion 101 of case body 10. However, the relationship in magnitude between inner flange portion 1130 and outer flange portion 1131 in the axial direction of rotary cleaning body 11 or the protruding length may be set arbitrarily.

[0027] However, the inner flange portion 1130 and the outer flange portion 1131 are set so as not to protrude in the axial direction of the rotary cleaning body 11 beyond the tip of the wire 1120 of the dust collection part 112. In other words, the tip of the wire 1120 protrudes in the axial direction of the rotary cleaning body 11 beyond the restricting part 113, i.e., the tip of the inner flange portion 1130 and the tip of the outer flange portion 1131, and is closer to the side surface of the support part 101 of the case body 10.

[0028] Furthermore, in this embodiment, an auxiliary cleaning part 114 such as a brush that is separate from the cleaning part 111 and the dust collection part 112 and capable of contacting the part to be cleaned is disposed at the other end of the cleaning element main body 110. The auxiliary cleaning part 114 is a corner-cleaning cleaning part located close to the side of the suction port 1 or the suction port body 2, and is configured to protrude radially from the cleaning element main body 110 and scrape off dust from the part to be cleaned by contacting it. The auxiliary cleaning part 114 is disposed in an annular shape surrounding the rotation axis A of the rotating cleaning body 11. Alternatively, or in addition to this, the dust collection part 112 may be disposed at the other end of the cleaning element main body 110 that faces the cover body 100 in the rotating cleaning body 11.

[0029] As shown in FIG. 7 , the suction port body 2 equipped with the suction port portion 1 is also referred to as a floor brush, a cleaning head, or the like. The suction port body 2 is attached and detached via a connecting pipe 20 and applied to a vacuum cleaner 3 as shown in FIG. 8 . In this embodiment, the vacuum cleaner 3 is a suction-type vacuum cleaner 3 in which an electric blower 31 serving as a suction source is disposed in the vacuum cleaner body 30, and negative pressure generated by driving the electric blower 31 sucks dust and air from the suction port body 2 into a separation section 32. The vacuum cleaner 3 may be any type, such as a floor-traveling type, a canister type, a stick type, an upright type, a handheld type, or a self-propelled vacuum cleaner. In the illustrated example, the vacuum cleaner 3 is a stick-type vacuum cleaner. In the illustrated example, the suction port body 2 is mechanically and fluidically connected to the vacuum cleaner body 30 by a connecting pipe 20, either directly or indirectly via a tube 33 such as an extension pipe. The operation of the electric blower 3 and the operation of the rotary cleaning body 11 or the electric motor are set by the user by operating the operation switch 34. The operation switch 34 is provided on the vacuum cleaner body 30 or on the grip 35 for gripping operation. The vacuum cleaner body 30 is also provided with a main body control unit 36 ​​that operates the electric blower 31 in accordance with the operation set by the operation switch 34. The main body control unit 36 ​​is electrically connected to the control unit of the suction port 1. Note that some or all of the functions of the control unit may be integrated into the main body control unit 36. The electric vacuum cleaner 3 also includes a power supply unit 37 as a power supply means. In this embodiment, the power supply unit 37 is a battery or a secondary battery, but is not limited to this and may also be an AC-DC adapter or a cord reel device that draws power from an external power source such as a commercial power source. The power supply unit 37 can supply power to the electric parts located in the vacuum cleaner body 30, such as the electric blower 31 and the main body control unit 36. In this embodiment, the power supply unit 37 can also supply power to the electric motor and control unit of the suction port 1 of the suction port body 2.

[0030] Next, the cleaning operation of the electric vacuum cleaner 3 of the embodiment will be described.

[0031] When cleaning, a user grips the grip portion 35 and operates the operation switch 34, which causes the main body control unit 36 ​​to start the electric blower 31. With the suction port body 2 placed on the area to be cleaned, the control unit also starts the rotary cleaning body 11 via the electric motor. The negative pressure generated by the operation of the electric blower 31 acts on the tubular body 33, the suction port 1, or the suction port of the suction port body 2 via the separation unit 32. When the user alternately moves the suction port body 2 back and forth over the area to be cleaned using the grip portion 35, dust on the area to be cleaned is sucked sequentially through the suction port, the connecting tube 20, the tubular body 33, and the separation unit 32, along with the air. As the rotary cleaning body 11 rotates, the cleaning unit 111 and auxiliary cleaning unit 114 come into contact with the area to be cleaned, and the dust scraped or scraped off from the area to be cleaned is sucked in through the suction port. The dust-containing air sucked into the separation section 32 is separated and collected in the separation section 32. The air from which the dust has been separated cools the electric blower 31, and then is discharged to the outside of the vacuum cleaner body 30.

[0032] To explain the operation of the rotary cleaning body 11 in more detail, the rotation of the electric motor 10 is transmitted to the rotary cleaning body 11 via a transmission unit, causing the rotary cleaning body 11 to rotate integrally with the transmission unit. Because the cleaning part 111, which accounts for more than half of the axial length of the rotary cleaning body 11, is twisted spirally in the circumferential direction, the cleaning part 111 that contacts the part to be cleaned continuously comes into contact with the part to be cleaned as the rotary cleaning body 11 rotates, removing dust from the part to be cleaned in the left-right range in which the cleaning part 111 is disposed. Because the auxiliary cleaning part 114 is located close to both sides of the case body 10, for example, by bringing the side of the suction port body 2 to the part to be cleaned located in a corner such as a corner of a room, the auxiliary cleaning part 114 comes into contact with the part to be cleaned and removes dust from the part to be cleaned near the corner.

[0033] As the rotary cleaning body 11 rotates, the dust collection part 112 of the rotary cleaning body 11 rotates at high speed while maintaining a small gap between the wire 1120 and the support part 101 of the case body 10. Therefore, the wire 1120 of the dust collection part 112 acts as a barrier, preventing dust from entering the rotation axis A side of the rotary cleaning body 11. Furthermore, thread-like dust is basically carried in a direction away from the dust collection part 112 by the twisting of the cleaning part 111 and is sucked into the suction port, and thread-like dust S that approaches the dust collection part 112 enters the spaces between the wires 1120 and is caught by the wires 1120 and becomes entangled, as shown in FIG. 2(b). The entangled thread-like dust S is collected in the spaces between the wires 1120.

[0034] In this way, by providing dust collection part 112 with multiple wires 1120 that are sparsely arranged and stand up in the axial direction of rotary cleaning body 11 at the end of rotary cleaning body 11 facing case body 10, wires 1120 of dust collection part 112 can block dust that attempts to enter between case body 10 and rotary cleaning body 11 and entangle thread-like debris as rotary cleaning body 11 rotates, effectively preventing dust from entering between case body 10 and rotary cleaning body 11. This can prevent problems such as locking of rotary cleaning body 11 caused by thread-like debris getting tangled in transmission body 102, support shaft 1020, etc.

[0035] Furthermore, since the tip of wire 1120 is close to case body 10, it is difficult for dust to enter through gap G with case body 10, and thread-like debris can be actively guided to the tip of wire 1120 so that it becomes easy for the debris to become entangled in wire 1120 through this minute gap G, and no rotational load is generated on rotating cleaning body 11 due to sliding contact with case body 10. Furthermore, since wire 1120 does not slide against case body 10, it can be made of a hard material, and therefore it will not bend even when tension is applied to thread-like debris, and can effectively entangle the thread-like debris.

[0036] The wires 1120 are made of synthetic resin and are inclined randomly with respect to the axial direction of the rotary cleaning body 11, so that the inclination of the wires 1120 has no directionality and there is no bias in the direction in which dust can easily enter.

[0037] By forming the dust collection section 112 in a substantially annular shape surrounding the rotation axis A of the rotating cleaning body 11, the dust collection section 112 can cover substantially the entire circumference of the rotating cleaning body 11, preventing the creation of a direction in which dust can easily enter.

[0038] Since the inner flange portion 1130 located along the inner edge of the dust collection portion 112 does not protrude in the axial direction of the rotating cleaning body 11 beyond the tip of the wire 1120, the inner flange portion 1130 does not prevent the tip of the wire 1120 of the dust collection portion 112 from acting on approaching thread-like dust.

[0039] Since the cleaning part 111 of the rotating cleaning body 11 is twisted toward the rear of the rotation direction of the rotating cleaning body 11, facing away from the dust collection part 112, as a whole, as the rotating cleaning body 11 rotates, the lint-like dust is guided by the cleaning part 111 in a direction away from the dust collection part 112 and carried to the suction port, while the lint-like dust that approaches the dust collection part 112 can be reliably captured by the dust collection part 112.

[0040] Since the outer flange portion 1131 located along the outer edge of the dust collection portion 112 does not protrude in the axial direction of the rotating cleaning body 11 beyond the tip of the wire 1120, the outer flange portion 1131 does not prevent the tip of the wire 1120 of the dust collection portion 112 from acting on approaching thread-like dust.

[0041] (Second embodiment) Next, a second embodiment will be described with reference to Fig. 9. Note that the same components and functions as those in the first embodiment will be denoted by the same reference numerals and the description thereof will be omitted.

[0042] In the dust collection part 112 of this embodiment, a bent part 11200 bent into a hook shape is formed at the tip of the wire 1120. Therefore, the dust collection part 112 has the shape of a hook member of a hook-and-loop fastener. The wire 1120 rises in the axial direction of the rotary cleaning body 11, and the bending direction of the bent part 11200 at the tip is set randomly. The rising directions of the wires 1120 may be the same or different.

[0043] During cleaning, the dust collection part 112 rotates at high speed in conjunction with the rotation of the rotating cleaning body 11 while maintaining a small gap between the wire 1120 and the support part 101 of the case body 10, thereby preventing dust from entering the rotation axis A side of the rotating cleaning body 11, and any thread-like debris that approaches the dust collection part 112 enters the space between the bent parts 11200 of the wire 1120, where it is caught by the wire 1120 and becomes entangled.

[0044] In this way, by having a configuration similar to that of the first embodiment, such as having a dust collection section 112 at the end of the rotating cleaning body 11 facing the case body 10, which has a plurality of wires 1120 sparsely arranged and standing up in the axial direction of the rotating cleaning body 11, it is possible to effectively suppress the intrusion of dust between the case body 10 and the rotating cleaning body 11, and it is possible to achieve the same effects as the first embodiment.

[0045] Furthermore, since the bent portions 11200 are inclined in random directions, the inclination of the tip of the wire 1120 does not have a directionality, and there is no bias in the direction in which dust can easily enter.

[0046] In each embodiment, the suction inlet portion 1 can also be applied to a self-propelled electric vacuum cleaner 3 that does not have a suction inlet body, such as a robot vacuum cleaner. In that case, the case body 10 may be disposed integrally with the vacuum cleaner body of the electric vacuum cleaner 3.

[0047] Although several 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 to these embodiments. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0048] 1 Intake port 2. Suction port body 3. Vacuum cleaner 10 Case body 11 Rotating cleaning body 111 Cleaning Department 112 Dust collection section 1120 wire rod 1130 Inner flange 1131 Outer flange 11200 Bend A Rotation axis

Claims

1. a rotating cleaning body that is rotated by an electric motor to clean the part to be cleaned; a case body that rotatably supports the rotary cleaning body, The rotary cleaning body has a dust collecting portion at an end facing the case body, the dust collecting portion including a plurality of wire rods that are sparsely arranged and stand up in the axial direction of the rotary cleaning body. A suction port portion characterized by:

2. The tip of the wire is close to the case body. The suction mouth portion according to claim 1 .

3. The wires are made of synthetic resin and are inclined randomly with respect to the axial direction of the rotary cleaning body. The suction mouth portion according to claim 1 .

4. The wire has a hook-shaped bent portion at its tip, and the bent portion is bent in a random direction. The suction mouth portion according to claim 1 .

5. The dust collecting portion is formed in a substantially annular shape surrounding the rotation axis of the rotary cleaning body. The suction mouth portion according to claim 1 .

6. The rotary cleaning body has an inner flange portion located along an inner edge portion of the dust collection portion, The inner flange portion does not protrude from the tip end of the wire in the axial direction of the rotary cleaning body. The suction mouth portion according to claim 5 .

7. The rotary cleaning body has a cleaning portion on its outer periphery for cleaning a portion to be cleaned, The cleaning portion is twisted rearward in the rotation direction of the rotary cleaning body in a direction away from the dust collecting portion. The suction mouth portion according to claim 1 .

8. The rotary cleaning body has an outer flange portion located along the outer edge of the dust collection portion, The outer flange portion does not protrude from the tip end of the wire in the axial direction of the rotary cleaning body. The suction mouth portion according to claim 5 .

9. The air intake portion according to any one of claims 1 to 8 is provided. A suction mouth body characterized by:

10. The suction mouth body according to claim 9 is provided. A vacuum cleaner characterized by:

11. The air intake portion according to any one of claims 1 to 8 is provided. A vacuum cleaner characterized by:

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