Suction port body and vacuum cleaner

Abstract

To provide a suction port body capable of efficiently sucking dust peeled from a dust removing member, and a vacuum cleaner provided with the same.SOLUTION: The suction port body 1 includes an electric motor, a transmission unit 15 that transmits power of the electric motor, a rotary cleaning body 14 that is supported by both left and right side portions of the transmission unit 15 and is rotated by the power of the electric motor via the transmission unit 15, a dust removing member 1040 that is disposed on a side of a part to be cleaned of the transmission unit 15, and a dust suction port 1051 that is located behind the dust removing member 1040 and communicates with a suction source.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] An embodiment of the present invention relates to a suction mouth body having a rotary cleaning body rotated by an electric motor, and an electric vacuum cleaner including the same. [Background technology]

[0002] Conventionally, a rotary cleaning body used in the suction mouth of an electric vacuum cleaner has a transmission unit disposed at its end for transmitting power from an electric motor or the like. Because it is difficult for the cleaning member of the rotary cleaning body to reach below the position where this transmission unit is disposed, a dust removal member such as a raised cloth for removing dust from the surface to be cleaned is separately disposed below the transmission unit. Generally, a connecting pipe for connecting the suction mouth to a suction source is disposed at the center of the suction mouth in the lateral direction. Therefore, the horizontally elongated suction mouth formed in the suction mouth and communicating with the connecting pipe has the strongest suction force at the center in the lateral direction and the weakest suction force at both lateral sides in the lateral direction. Therefore, there is a problem that dust removed from the surface to be cleaned by a dust removal member disposed at the end of the rotary cleaning body is difficult to be sucked into the suction mouth when it peels off from the dust removal member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-167313 Summary of the Invention [Problem to be solved by the invention]

[0004] The problem to be solved by the present invention is to provide a suction mouth body that can efficiently suck in dust that has come off a dust removal member, and an electric vacuum cleaner equipped with the same. [Means for solving the problem]

[0005] The suction port body of the embodiment includes an electric motor, a transmission unit that transmits the power of the electric motor, a rotating cleaning body that is supported on both the left and right sides of the transmission unit and rotated by the power of the electric motor via the transmission unit, a dust removal member that is arranged on the side of the transmission unit that is to be cleaned, and a dust suction port that is located behind the dust removal member and communicates with a suction source. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 2 is a bottom view showing the suction mouth body of the embodiment. [Figure 2] FIG. 2 is an enlarged perspective view of a portion of the suction port body. [Figure 3] FIG. 3 is an enlarged cross-sectional view of a portion of the same suction port body. [Figure 4] FIG. 3 is a perspective view showing a rotary cleaning body of the same suction port body. [Figure 5] FIG. 2 is a plan view showing the same suction mouth body with a portion thereof omitted. [Figure 6] FIG. 2 is a bottom view showing the same suction port body with a portion thereof omitted. [Figure 7] FIG. 2 is a perspective view showing an example of an electric vacuum cleaner equipped with the same suction mouth body. DETAILED DESCRIPTION OF THE INVENTION

[0007] Hereinafter, an embodiment will be described with reference to the drawings.

[0008] In FIGS. 5 to 7, reference numeral 1 denotes a suction port body. The suction port body 1 is also referred to as a floor brush, a cleaning head, or the like. The suction port body 1 includes a case body 10 and a connecting pipe 11 connected to the case body 10. The case body 10 is equipped with an electric motor 12, a control unit 13, a rotary cleaning body 14, and a transmission unit 15. The suction port body 1 is configured to suck in dust and air using negative pressure applied from a suction source via the connecting pipe 11, and to rotate the rotary cleaning body 14 by transmitting power from the electric motor 12 to the transmission unit 15. Hereinafter, the front-rear, left-right, and up-down directions are defined based on the state in which the suction port body 1 is used on a horizontal surface to be cleaned. In the drawings, the arrow FR indicates the forward direction, the arrow RR indicates the backward direction, the arrow L indicates the leftward direction, the arrow R indicates the rightward direction, the arrow U indicates the upward direction, and the arrow D indicates the downward direction.

[0009] The electric motor 12 has an output shaft 121 that protrudes from an electric motor main body 120 that houses a rotor, a stator, etc. The output shaft 121 is a rotating shaft of the electric motor 12 that rotates integrally with the rotor, and outputs power to the rotary cleaning body 14. A pulley 122 is attached to the output shaft 121. The pulley 122 rotates integrally with the output shaft 121. The pulley 122 is, for example, an output gear whose circumferential surface is formed in a gear tooth shape, and rotates integrally with the output shaft 121.

[0010] The control unit 13 that controls the operation of the electric motor 12 has a function of switching between permission and non-permission of operation of the electric motor 12 depending on whether the suction mouth body 1 is grounded to the part to be cleaned, for example.

[0011] Rotary cleaning body 14, rotated by electric motor 12, scrapes and / or removes dust from the surface to be cleaned as it rotates, thereby assisting in suction cleaning. Rotary cleaning body 14 has a main cleaning part 140 and a sub-cleaning part 141, which is a cleaning part located at the end in the axial direction.

[0012] As shown in FIG. 4, the main cleaning unit 140 constitutes the main cleaning area, which constitutes the majority of the cleaning area of ​​the rotating cleaning body 14. The main cleaning unit 140 is provided on the cleaning body main body 142. The cleaning body main body 142 is a main cleaning unit support base on which the main cleaning unit 140 is attached. The cleaning body main body 142 is formed in a longitudinal cylindrical shape that is long in the axial direction, and is attached integrally to the transmission unit 15. The axis of the cleaning body main body 142 coincides or nearly coincides with the axis A of the rotating cleaning body 14. The cleaning body main body 142 is attached in a position where its end on the transmission unit 15 side is close to or in contact with the transmission unit 15.

[0013] The main cleaning unit 140 is disposed in the axial direction of the cleaning element main body 142. The main cleaning unit 140 has a cleaning range that extends across the entire axial length between both ends of the cleaning element main body 142. In this embodiment, the main cleaning unit 140 is a separate unit from the cleaning element main body 142 and includes a main cleaning unit base 1400 formed contiguous with the cleaning element main body 142 and a main cleaning member 1401 such as a brush or blade that protrudes from the main cleaning unit base 1400 and whose tip end is capable of contacting the surface to be cleaned. The main cleaning unit base 1400 is disposed along the axial length of the outer peripheral surface of the cleaning element main body 142, so that the main cleaning member 1401 is disposed in a continuous wall-like manner between both ends of the cleaning element main body 142. In the illustrated example, the main cleaning unit 140 is disposed in a spiral shape twisted in the circumferential direction of the cleaning element main body 142. The main cleaning units 140 are disposed at multiple locations around the cleaning element main body 142 at intervals. The multiple main cleaning units 140 may be identical, or the main cleaning member 1401 of at least one of the main cleaning units 140 may be different from the main cleaning members 1401 of the remaining main cleaning units 140. Alternatively, the main cleaning unit base 1400 may be formed integrally with the cleaning element main body 142. Furthermore, the main cleaning unit 140 may be disposed so as to cover the entire outer circumferential surface of the cleaning element main body 142, for example.

[0014] The auxiliary cleaning unit 141 is attached to an end of the cleaning element main body 142 via an attachment portion 143. The attachment portion 143, together with the cleaning element main body 142, constitutes at least a part of the base portion B. The auxiliary cleaning unit 141 constitutes the end of the cleaning range of the rotating cleaning body 14, i.e., the corner cleaning range. The auxiliary cleaning unit 141 has a narrower cleaning range in the left-right direction than the main cleaning unit 140, and functions to mainly remove dust from areas to be cleaned, such as corners of a room. In this embodiment, as shown in FIG. 5 , the auxiliary cleaning unit 141 is located at the end of the rotating cleaning body 14 that does not face the transmission unit 15, i.e., the free end, which is the other end of the rotating cleaning body 14. In the illustrated example, the auxiliary cleaning unit 141 is located at the left end of the left rotating cleaning body 14 and the right end of the right rotating cleaning body 14. Therefore, both auxiliary cleaning units 141 are located close to both left and right side edges of the case body 10 of the suction port body 1.

[0015] 4, the sub-cleaning unit 141 has a sub-cleaning unit base 1410 and a sub-cleaning member 1411, at least the tip of which can come into contact with the part to be cleaned. In this embodiment, the sub-cleaning unit 141 is arranged such that the sub-cleaning unit base 1410 is attached to an attachment part 143 located at the end of the cleaning element main body 142. However, the sub-cleaning unit base 1410 may be integrally formed with the attachment part 143.

[0016] The auxiliary cleaning unit base 1410 is made of a flexible material such as cloth. The auxiliary cleaning member 1411 is made of an elastic material such as synthetic resin. The auxiliary cleaning member 1411 has a base that is integral with the auxiliary cleaning unit base 1410, and a tip that protrudes radially from the auxiliary cleaning unit base 1410. In this embodiment, the auxiliary cleaning member 1411 is a brush unit made of linear bristles implanted in the auxiliary cleaning unit base 1410. In the drawing, multiple bristles are arranged in cylindrical or truncated cone-shaped bristle bundles at equal or approximately equal intervals on the auxiliary cleaning unit base 1410.

[0017] When attached to the mounting part 143, the axes of the main cleaning part 140 and the sub-cleaning part 141 coincide or nearly coincide, and the sub-cleaning member 1411 is positioned in a circular ring shape surrounding the axis A of the rotary cleaning body 14. In this embodiment, the position of the sub-cleaning member 1411 in the axial direction of the rotary cleaning body 14 gradually or continuously changes in the circumferential direction so that at least the tip of the sub-cleaning member 1411 traces a substantially reciprocating meandering or zigzag trajectory between one end and the other end of its arrangement width multiple times, for example four times, per revolution of the rotary cleaning body 14.

[0018] The attachment part 143 is an auxiliary cleaning part support base to which the auxiliary cleaning part 141 is attached, and in this embodiment also functions as a stopper that holds the main cleaning part base 1400 of the main cleaning part 140 in the axial direction relative to the cleaning element main body 142. The attachment part 143 may be formed integrally with the cleaning element main body 142, or may be formed separately from the cleaning element main body 142 and attached integrally thereto. The attachment part 143 is formed in an annular shape coaxial with the cleaning element main body 142, and in this embodiment, in an annular shape. In other words, the axis of the cleaning element main body 142 and the axis of the attachment part 143 coincide or approximately coincide.

[0019] Preferably, the rotary cleaning body 14 has a cap portion 144. When the rotary cleaning body 11 has the cap portion 144 in this way, the cap portion 144 forms part of the base portion B. The cap portion 144 covers the mounting portion 143 in the axial direction to prevent dust from becoming entangled or entering, and in this embodiment, together with the mounting portion 143, holds at least a portion of the sub-cleaning unit base portion 1410 and / or the sub-cleaning member 1411 of the sub-cleaning unit 141 in a pressed state by sandwiching them in the axial direction between the mounting portion 143 and the cap portion 144. The cap portion 144 is arranged coaxially with the mounting portion 143. The cap portion 144 is engaged with the mounting portion 143 or the cleaning body main body 142 by claw engagement or the like.

[0020] The transmission unit 15, which transmits the power of the electric motor 12 to the rotary cleaning body 14, is located relative to the electric motor 12 in a direction intersecting the axial direction of the electric motor 12 or the output shaft 121. The transmission unit 15 is located forward relative to the electric motor 12. As shown in FIGS. 1, 2, and 5, the transmission unit 15 has a transmission unit main body 150. The transmission unit main body 150 is rotatably supported by the case body 10. The transmission unit main body 150 is, for example, a passive gear formed in a disk shape. An endless timing belt 151, which serves as a transmission member, is wound between the transmission unit main body 150 and the pulley 122 of the electric motor 12, and the transmission unit 15 rotates in synchronization with the rotation of the output shaft 121 of the electric motor 12. A holding shaft 152 for holding the rotary cleaning body 14 is formed on the transmission unit main body 150. The holding shaft 152 is formed coaxially with the transmission unit main body 150, protrudes in the axial direction of the holding shaft 152, and is inserted into the cleaning unit main body 142 of the rotary cleaning body 14. The axial direction of the holding shaft 152 is parallel or approximately parallel to the output shaft 121, and in this embodiment, is the left-right direction. The rotary cleaning body 14 is held by the holding shaft 152, and the transmission unit 15 or the transmission unit main body 150 and the rotary cleaning body 14 are arranged coaxially or approximately coaxially. In this embodiment, the holding shafts 152 protrude from both ends of the transmission unit main body 150, and the rotary cleaning bodies 14 are engaged and held by each of these holding shafts 152. That is, in the illustrated example, the rotary cleaning bodies 14 are arranged in pairs with respect to one transmission unit 15 as the reference, and one end of the two left and right rotary cleaning bodies 14 is supported in a cantilever support structure, and these rotary cleaning bodies 14 are rotated integrally in the same direction.

[0021] The case body 10 is made of synthetic resin or the like, and in this embodiment is formed long, i.e., horizontally elongated, in the left-right direction. The case body 10 is formed with a motor chamber 100 that houses the motor 12 and a cleaning body chamber 101 that is a rotary cleaning body housing section that houses the rotary cleaning body 14. In this embodiment, the case body 10 is also formed with a control chamber 102 that houses the control unit 13. The control chamber 102 and the motor chamber 100 are arranged side by side in the case body 10, and the cleaning body chamber 101 is arranged adjacent to them in front of them with a partition wall 103 in between.

[0022] In the motor chamber 100, the motor 12 is arranged with its output shaft 121 aligned in the left-right direction.

[0023] In this embodiment, the cleaning element chamber 101 is located at the front of the case body 10. An opening 1010 is formed in the bottom of the cleaning element chamber 101, and the entire bottom of the rotating cleaning element 14 is exposed through this opening 1010, making it possible to contact the part to be cleaned. In the example shown in the figure, a front opening 1011 is formed in the front of the cleaning element chamber 101, communicating with the opening 1010. The front opening 1011 is formed by cutting out the lower end of the front end of the cleaning element chamber 101, which is the front wall of the case body 10, and extends in the left-right direction.

[0024] Furthermore, the case body 10 is formed with a rotary cleaning element support part 104 that houses the transmission part 15 and supports the rotary cleaning element 14. The rotary cleaning element support part 104 is in communication with the motor chamber 100 and the cleaning element chamber 101. In this embodiment, the rotary cleaning element support part 104 protrudes forward from the partition wall 103 between the motor chamber 100 and the control chamber 102. The rotary cleaning element support part 104 is located at the front of the center in the left-right direction of the case body 10. The cleaning element chambers 101 are located on both the left and right sides of the rotary cleaning element support part 104, and both sides of the rotary cleaning element support part 104 are open facing these cleaning element chambers 101. In the example shown in the figure, the rotary cleaning element support part 104 is located between the cleaning element chambers 101, 101, and serves as a wall part that separates the cleaning element chambers 101, 101. The holding shafts 152 of the transmission unit 15 protrude from the rotary cleaning element support parts 104 into the cleaning element chamber 101, and the rotary cleaning element 14 is supported by the holding shafts 152. However, the rotary cleaning element support parts 104 may protrude into the interior of a single cleaning element chamber 101 that is connected in the left-right direction. The rotary cleaning element support part 104 is narrow in the left-right direction and long in the front-rear direction.

[0025] A dust removing member 1040 is disposed on the lower portion of the rotary cleaning element support part 104 facing the part to be cleaned, i.e., on the lower side of the transmission part 15 facing the part to be cleaned. The dust removing member 1040 is disposed between the left and right rotary cleaning elements 14, 14. Therefore, the dust removing member 1040 is disposed in an area in the left-right direction where the rotary cleaning elements 14 are not disposed. The dust removing member 1040 has a width substantially equal to the width of the rotary cleaning element support part 104. Therefore, the cleaning areas of the left and right rotary cleaning elements 14 and the cleaning area of ​​the dust removing member 1040 are connected with almost no gap in the left-right direction. In this embodiment, the dust removing member 1040 is disposed in an area extending from the center to the rear of the rotary cleaning element support part 104 in the front-rear direction. In other words, the dust removing member 1040 is disposed near the rear below the rotary cleaning element support part 104 or the transmission part 15. The dust removing member 1040 is also elongated in the front-rear direction. In this embodiment, the dust removing member 1040 is located entirely or almost entirely within the left-right projection of the rotary cleaning body 14 .

[0026] The dust removal member 1040 is preferably a lint brush having bristles 10401 implanted on a base material 10400 fixed to the rotary cleaning element support part 104. The base material 10400 is formed in a thin plate shape and is attached to the lower part of the rotary cleaning element support part 104. The bristles 10401 protrude in the thickness direction of the base material 10400. Preferably, the bristles 10401 are inclined from the front to the rear. The dust removal member 1040 is also arranged so that it gradually protrudes toward the part to be cleaned, i.e., downward, from the front to the rear. In this embodiment, this arrangement is achieved by inclining the lower part of the rotary cleaning element support part 104 to which the base material 10400 is attached. However, it may also be achieved by forming the bristles 10401 to gradually increase in length from the front to the rear of the dust removal member 1040.

[0027] In this embodiment, a front support part 1041 is disposed in front of the dust removal member 1040 below the rotary cleaning element support part 104, i.e., below the transmission part 15 on the side of the part to be cleaned. The front support part 1041 is a part that comes into contact with the part to be cleaned when the suction port body 1 is placed on the part to be cleaned, and supports the suction port body 1 with respect to the part to be cleaned. The front support part 1041 is located in front of the dust removal member 1040. The front support part 1041 is located between the left and right rotary cleaning elements 14, 14. Therefore, the front support part 1041 is located in an area where the rotary cleaning element 14 is not located in the left-right direction. The front support part 1041 is within the front-rear projection of the dust removal member 1040. In this embodiment, the front support part 1041 has a width slightly smaller than that of the rotary cleaning element support part 104. The front support part 1041 is located at the front below the rotary cleaning body support part 104 and is spaced forward from the dust removal member 1040. In other words, the front support part 1041 is located near the front below the rotary cleaning body support part 104 or the transmission part 15. In this embodiment, the front support part 1041 is located entirely or almost entirely within the left-right projection of the rotary cleaning body 14.

[0028] The front support portion 1041 protrudes downward below the dust removal member 1040 and is capable of coming into contact with the part to be cleaned. When the front support portion 1041 comes into contact with the part to be cleaned, it forms a space in the up-down direction in front of the dust removal member 1040. The front support portion 1041 may have any configuration as long as it can form a space in front of the dust removal member 1040, and in this embodiment, a rotating body or wheel having an axis in the left-right direction and rotatable in the front-rear direction is used, but the configuration is not limited to this and the front support portion 1041 may also be formed from a wiping member such as a raised cloth.

[0029] Furthermore, the case body 10 is formed with a suction chamber 105, which is a dust collection groove. The suction chamber 105 is located below the control chamber 102 and the motor chamber 100, adjacent to the rear of the cleaning element chamber 101 via a partition wall 103, and communicates with the cleaning element chamber 101 via a communication opening 1030 formed in the lower part of the partition wall 103. An suction port 1050 is opened at the bottom of the suction chamber 105. The suction port 1050 is formed as a slit that extends in the left-right direction and has a small width in the front-to-rear direction. The suction port 1050 is continuous over the entire or substantially entire rear part of the cleaning element chamber 101. In this embodiment, the cleaning element chamber 101 and the suction chamber 105 are formed independently as separate chambers.

[0030] As shown in FIGS. 1 and 2, a dust suction port 1051 is formed in the suction chamber 105, connecting the suction port 1050 and the connecting pipe 11. The dust suction port 1051 is the portion on which suction force acts directly via the connecting pipe 11. Therefore, the dust suction port 1051 is the portion of the suction chamber 105 where the negative pressure is greatest. The dust suction port 1051 opens in the rear wall of the suction chamber 105. That is, the dust suction port 1051 opens forward. The dust suction port 1051 is located approximately in the center of the suction chamber 105 in the left-right direction, and is formed narrower in the left-right direction than the suction port 1050. The rotating cleaning body support part 104 is located immediately before the dust suction port 1051. Therefore, the dust removal member 1040 and the front support part 1041 are arranged in this order forward as viewed from the dust suction port 1051. The dust removal member 1040 and the front support portion 1041 are within the front-rear projection of the dust suction port 1051. The bristles 10401 of the dust removal member 1040 are tilted toward the dust suction port 1051.

[0031] Preferably, the upper portion, i.e., the ceiling portion, of suction chamber 105 is gradually inclined upward from both left and right sides toward the center. Therefore, dust suction port 1051 is located in the part of suction chamber 105 that is widest in the vertical direction.

[0032] A wiping unit 106 is disposed at the rear of the suction chamber 105. The wiping unit 106 comes into contact with the surface to be cleaned, such as a wooden floor, to wipe and polish the dust off the surface, and also functions as a sealing member to ensure a high degree of vacuum at the suction port 1050. The wiping unit 106 is disposed adjacent to or close to the rear of the suction port 1050, and is elongated in the left-right direction with a length equal to or greater than the length of the suction port 1050. In this embodiment, the wiping unit 106 is positioned in the form of a wall extending between the ends of the rotating cleaning body 14 or across the ranges on both sides of the case body 10. For example, a raised cloth or the like is used as the wiping unit 106.

[0033] Furthermore, rear support portions 107 are disposed on both the left and right sides of suction chamber 105. The rear support portions 107 are portions that come into contact with the part to be cleaned when suction port body 1 is placed on the part to be cleaned, thereby supporting suction port body 1 relative to the part to be cleaned. For example, rear support portion 107 is located on a left-right extension of suction port 1050. Furthermore, rear support portion 107 is located rearward of dust removal member 1040, is separated left and right from dust removal member 1040, and is not located within the front-rear projection of dust removal member 1040. In this embodiment, rear support portion 107 is located between dust removal member 1040 and wiping portion 106 in the front-rear direction. The rear support portion 107 may have any configuration as long as it can support suction port body 1 relative to the part to be cleaned. In this embodiment, a rotating body or wheel having a left-right axis and rotatable in the front-rear direction is used, but this is not limited thereto. A wiping member such as a raised cloth may also be used. In this embodiment, the dust removal member 1040 is positioned in a range including the center of gravity of an imaginary triangle T that connects the ground contact points of the front support portion and the rear support portions 107, 107.

[0034] When suction mouth body 1 is placed on the part to be cleaned, the height of the vertical space between the underside of case body 10 and the part to be cleaned is set by front support part 1041, wiping part 106, and / or rear support part 107. When suction mouth body 1 is placed on a part to be cleaned that is hard, flat, and has a small load, such as flooring or a wooden floor (shown by imaginary line L1 in FIG. 3), dust removal member 1040 is spaced above the part to be cleaned, and when suction mouth body 1 is placed on a part to be cleaned that is soft and has a large load, such as a rug or carpet (shown by imaginary line L2 in FIG. 3), suction mouth body 1 sinks into the part to be cleaned, so that at least the tips of bristles 10401 of dust removal member 1040 come into contact with the part to be cleaned.

[0035] The connecting pipe 11 connected to the rear of the case body 10 is also called a rotating pipe or the like, and is connected to be rotatable relative to the case body 10. The connecting pipe 11 protrudes upward from the rear of the case body 10.

[0036] The suction inlet body 1 is applied to a vacuum cleaner 2 shown in FIG. 7 . In this embodiment, the vacuum cleaner 2 is a suction-type vacuum cleaner 2 in which an electric blower 21, serving as a suction source, is disposed in the vacuum cleaner body 20. Negative pressure generated by the operation of the electric blower 21 sucks dust and air from the suction inlet body 1 into a separation section 22. The vacuum cleaner 2 may be any type, such as a floor-traveling type, a canister type, a stick type, an upright type, or a handheld type. In the illustrated example, the vacuum cleaner 2 is a stick-type vacuum cleaner. In the illustrated example, the suction inlet body 1 is mechanically and fluidly connected to the vacuum cleaner body 20 by a connecting pipe 11, either directly or indirectly via a tube 23 such as an extension pipe. The operation of the electric blower 3 and the operation of the rotary cleaning body 14 or the electric motor 12 are set by a user by operating an operation switch 24. The operation switch 24 is provided on the vacuum cleaner body 20 or on a grip 25 for gripping operation. Also disposed in vacuum cleaner body 20 is body control unit 26, which operates electric blower 21 in accordance with the operation set by operation switch 24. Body control unit 26 is electrically connected to control unit 13 of suction mouth body 1. Note that some or all of the functions of control unit 13 may be integrated into body control unit 26. Furthermore, electric vacuum cleaner 2 is provided with power supply unit 27. In this embodiment, power supply unit 27 is a battery or a secondary battery, but is not limited to this and may also be an AC-DC adapter that draws power from an external power source such as a commercial power source, a cord reel device, or the like.

[0037] Next, the operation of one embodiment will be described.

[0038] When cleaning, the user grips grip portion 25 and operates operation switch 24, causing main body control portion 26 to start electric blower 21, and with suction port body 1 placed on the area to be cleaned, control portion 13 starts rotary cleaning body 14 via electric motor 12. Negative pressure generated by the operation of electric blower 21 acts on tubular body 23 and suction port 1050 of suction port body 1 via separation portion 22. When the user uses grip portion 25 to move suction port body 1 alternately back and forth over the area to be cleaned, dust on the area to be cleaned is sucked sequentially together with air through suction port 1050, dust suction port 1051, connecting pipe 11, tubular body 23, and into separation portion 22. Furthermore, as the rotary cleaning body 14 rotates, the main cleaning members 1401 of the main cleaning unit 140 and the auxiliary cleaning members 1411 of the auxiliary cleaning unit 141 come into contact with the part to be cleaned and scrape or scrape out dust from the part to be cleaned, and depending on the type of part to be cleaned, the dust removal member 1040 comes into contact with the part to be cleaned and peels off dust from the part to be cleaned, which is similarly sucked into the dust suction port 1051 via the suction port 1050 located behind it. Dust is separated and collected from the dust-containing air sucked into the separation unit 22. The air from which dust has been separated cools the electric blower 21 and is then discharged to the outside of the vacuum cleaner body 20.

[0039] To explain the operation of the rotary cleaning body 14 in more detail, the rotation of the electric motor 12 is transmitted via the transmission unit 15 to the rotary cleaning body 14, causing it to rotate integrally with the transmission unit 15. The main cleaning unit 140, which accounts for more than half of the axial length of the rotary cleaning body 14, is twisted spirally in the circumferential direction. Therefore, as the rotary cleaning body 14 rotates, the main cleaning members 1401 of the main cleaning unit 140, which contact the area to be cleaned, continuously come into contact with the area to be cleaned, removing dust from the area to be cleaned in the left-right range in which the main cleaning unit 140 is disposed. The auxiliary cleaning units 141 are located close to both sides of the case body 10 of the suction port body 1. Therefore, for example, by moving the side of the suction port body 1 to the area to be cleaned, which is located in a corner of a room, the auxiliary cleaning members 1411 of the auxiliary cleaning unit 141 come into contact with the area to be cleaned and remove dust from the area to be cleaned near the corner.

[0040] Furthermore, between the rotating cleaning bodies 14, 14, when cleaning an area to be cleaned, such as a carpet, the suction port body 1 moves back and forth with the dust removal member 1040 located below the transmission unit 15 in contact with the area to be cleaned. At this time, the bristles 10401 of the dust removal member 1040 are tilted from front to rear, so that when the suction port body 1 moves backward, the contact resistance with the area to be cleaned becomes relatively large, allowing more dust to be removed, and when the suction port body 1 moves forward, the dust removed from the area to be cleaned is peeled off from the bristles 10401 of the dust removal member 1040 by sliding contact with the area to be cleaned, and is sucked into the dust suction port 1051 through the suction port 1050 located behind it.

[0041] Thus, according to one embodiment, in a configuration in which rotary cleaning body 14 is supported on both the left and right sides of transmission unit 15 that transmits the power of electric motor 10, dust removal member 1040 is disposed below transmission unit 15 on the side of the part to be cleaned, and dust suction port 1051 is disposed behind dust removal member 1040. This makes it possible for dust removal member 1040 to peel dust from the part to be cleaned in a position where it is difficult for rotary cleaning body 14 to remove dust, as suction port body 1 moves back and forth, and then carry the peeled dust to dust suction port 1051 for sucking. At this time, dust suction port 1051 is the location where the greatest negative pressure, i.e., suction force, acts via connecting pipe 11, so dust peeled from dust removal member 1040 can be efficiently sucked in.

[0042] Since the bristles 10401 of the dust removal member 1040 are inclined toward the dust suction port 1051, when the suction port body 1 moves backward, the bristles 10401 generate a large contact resistance with the part to be cleaned, and can effectively remove the dust, and when the suction port body 1 moves forward, the dust adhering to the bristles 10401 is easily peeled off and carried relatively backward, so that the peeled off dust can be efficiently sucked in from the dust suction port 1051 located behind the dust removal member 1040.

[0043] Front support part 1041 is located in front of dust removal member 1040, below transmission part 15 on the side of the part to be cleaned, and forms a vertical space between dust removal member 1040 and the part to be cleaned, making it less likely that dust removal member 1040 will press dust against the part to be cleaned, and also reducing contact resistance between dust removal member 1040 and the part to be cleaned, making it easier to operate suction port body 1 in the front-to-rear direction. In particular, by making front support part 1041 a rotating body or wheel, it is possible to make it easier to operate suction port body 1 in the front-to-rear direction.

[0044] Since the dust removal member 1040 protrudes from the front to the rear toward the part to be cleaned, the contact resistance of the dust removal member 1040 with the part to be cleaned can be reduced, particularly when the suction mouth body 1 is moved forward, making it easier to operate the suction mouth body 1.

[0045] By providing the above-described suction inlet body 1 to the vacuum cleaner 2, the vacuum cleaner 2 can be realized with good dust collection and operability.

[0046] 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]

[0047] 1. Suction port body 2. Vacuum cleaner 12 Electric motor 14 Rotating cleaning body 15 Transmission section 1040 Dust removal member 1041 Front support part 1051 Dust intake port 10401 Hair section

Claims

1. An electric motor, a transmission unit that transmits power of the electric motor; a rotating cleaning body supported on both left and right sides of the transmission part and rotated by the power of the motor via the transmission part; a dust removal member disposed on the cleaning target side of the transmission part; a dust suction port located behind the dust removal member and communicating with a suction source; A suction mouth body comprising:

2. The dust removal member has bristles that tilt toward the dust suction port. The suction mouth body according to claim 1 .

3. a front support part provided on the part to be cleaned side of the transmission part in front of the dust removal member for forming a space between the transmission part and the part to be cleaned in the up-down direction; The suction mouth body according to claim 1 .

4. The dust removing member protrudes from the front to the rear toward the part to be cleaned. The suction mouth body according to claim 1 .

5. The suction mouth body according to any one of claims 1 to 4 is provided. A vacuum cleaner characterized by:

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