Electric vacuum cleaner unit

Abstract

The purpose of the present invention is to provide an electric vacuum cleaner unit provided with a dust collection device capable of effectively suppressing a reduction in suction capacity. The electric dust collector (1) is characterized by comprising a dust collector main body (10) with an electric blower (14) and a dust collecting part (20) which is detachably arranged on the dust collector main body (10) and collects dust sucked by the driving of the electric blower (14). The dust collection unit (20) has: a centrifugal separation unit (100) for separating dust; a filter (70) provided downstream of the centrifugal separation unit (100) and collecting dust; and a filter support section (80) that supports the filter (70) from the upstream side in a state separated from the exhaust port of the centrifugal separation section (100).

Description

[0001] This application is a divisional application of the following application:

[0002] Filing date of original application: November 18, 2020

[0003] Application number of the original application: 202080090182.X (International application number PCT / JP2020 / 042897)

[0004] Title of the original invention: Electric vacuum cleaner Technical Field

[0005] The present invention relates to an electric vacuum cleaner unit. Background Art

[0006] At present, there is provided an electric vacuum cleaner having a dust collecting device such as the electric vacuum cleaner disclosed in the following patent document 1. The electric vacuum cleaner disclosed in the patent document 1 is embedded with a cyclone dust collector having an upstream cyclone part and a downstream cyclone part, and the cyclone dust collector is arranged on the upstream side of the electric blower, and a filter is arranged between the cyclone dust collector and the electric blower.

[0007] Prior art literature

[0008] Patent Literature

[0009] Patent Document 1: Japanese Patent Application Publication No. 2014-76143 Summary of the invention

[0010] Here, when the filter is arranged between the cyclone dust collector and the electric blower as in the electric vacuum cleaner of the above-mentioned Patent Document 1, even if dust is generated passing through the cyclone dust collector, the dust can be captured in the filter. On the contrary, if the filter blocks the outflow port for air to flow out of the downstream cyclone part, pressure loss will occur, and there is a risk of reduced suction capacity.

[0011] Therefore, an object of the present invention is to provide an electric vacuum cleaner unit including a dust collecting device capable of effectively suppressing a decrease in suction capability.

[0012] The electric vacuum cleaner in the embodiment of the present invention provided to solve the above-mentioned problem is characterized in that it comprises: a vacuum cleaner main body having an electric blower, and a dust collecting device which is detachably arranged on the vacuum cleaner main body and collects dust attracted by the drive of the electric blower; the dust collecting device comprises: a centrifugal separation part for separating dust, a filter which is arranged on the downstream side of the centrifugal separation part and captures dust, and a filter supporting part which supports the filter from the upstream side in a state separated from the exhaust port of the centrifugal separation part.

[0013] The electric vacuum cleaner of the present invention is provided with a filter support portion at a position closer to the downstream side than the centrifugal separation portion of the dust collecting device. In addition, the filter support portion supports the filter in a state where the filter is separated from the exhaust port of the centrifugal separation portion, thereby suppressing the clogging of the exhaust port and the accompanying reduction in suction capacity. Therefore, according to the present invention, an electric vacuum cleaner having a dust collecting device that can effectively suppress the reduction in suction capacity due to the clogging of the exhaust port of the centrifugal separation portion by the filter can be provided.

[0014] The electric vacuum cleaner unit of the present invention is characterized in that it comprises: a vacuum cleaner main body, which has an electric blower; a suction piece, which has a suction port for sucking dust; a pipe portion, which is a joint portion connecting the vacuum cleaner main body and the suction piece; and a vacuum cleaner supporting device, the vacuum cleaner supporting device comprising: a loading portion, which is used to load the suction piece; and a support portion, which supports the pipe portion and engages with the pipe portion, the support portion engages with the pipe portion at a position of the other end of the pipe portion that is closer to the suction piece side than one end on the vacuum cleaner main body side, and when the pipe portion is engaged with the support portion, the upper end of the support portion erected relative to the loading portion is located at a position closer to the other end side than the one end side of the pipe portion.

[0015] (Effects of the Invention)

[0016] According to the present invention, it is possible to provide an electric vacuum cleaner unit including a dust collecting device capable of effectively suppressing a decrease in suction capability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side view of the electric vacuum cleaner related to one embodiment of the present invention.

[0018] Figure 2 yes Figure 1 A sectional view of a main body of an electric vacuum cleaner.

[0019] Figure 3 yes Figure 1 A three-dimensional diagram of a dust collecting unit of an electric vacuum cleaner.

[0020] Figure 4 yes Figure 3 A cross-sectional view of the dust collecting section is shown.

[0021] Figure 5 yes Figure 3 A sectional stereoscopic view of the dust collecting portion is shown.

[0022] Figure 6 yes Figure 3 An exploded perspective view of the dust collecting section is shown.

[0023] Figure 7 yes Figure 4Enlarged view of part A.

[0024] Figure 8 Yes means Figure 1 An exploded perspective view of a suction piece of an electric vacuum cleaner.

[0025] Fig. 9 Yes means Figure 8 A top view of the internal structure of the suction piece is shown.

[0026] Fig.10 Yes means Figure 8 An exploded perspective view of the internal structure of the suction piece is shown.

[0027] Fig.11 It means viewing from the bottom side Figure 8 A three-dimensional view of the state of the suction piece shown.

[0028] Fig.12 Yes means Figure 8 A bottom view of the suction piece is shown.

[0029] Fig.13 In (a) and (b), they represent Figure 8 The illustrated suction tool is an exploded perspective view of a rotating cleaning element and a cleaning element driving mechanism.

[0030] Fig.14 yes Figure 8 The side sectional view of the suction piece shown, (a) shows the state where the upper shell and the lower shell are separated, (b) shows the state where the upper shell and the lower shell are integrated.

[0031] Fig.15 It is an exploded perspective view showing the installation structure of the cleaning tool driving mechanism.

[0032] Fig.16 (a) is Figure 7 (b) is an enlarged view of part B, and (b) is a side view showing the state in which the joint part 44 is tilted toward the back side.

[0033] Fig.17 It is a perspective view showing an electric vacuum cleaner unit according to a first modification.

[0034] Fig.18 yes Fig.17 An enlarged view of the main part.

[0035] Fig.19 (a) means Fig.17 A three-dimensional view of the support portion and its vicinity in the electric vacuum cleaner unit, (b) is an enlarged view of part A of (a).

[0036] Fig. 20 Yes means Fig.17A three-dimensional view of the structure near the pipe part in the electric vacuum cleaner unit.

[0037] Fig.21 It is a side view showing a state in which the dust collecting unit is removed from the electric vacuum cleaner according to the second modification.

[0038] Fig. 22 (a) is a perspective view of the dust collecting unit, and (b) is a perspective view showing a state immediately before the dust collecting unit of (a) is installed.

[0039] Fig.23 yes Fig.21 An exploded perspective view of an air duct component cylinder of an electric vacuum cleaner.

[0040] Fig.24 It is a perspective view showing an electric vacuum cleaner according to a third modified example.

[0041] Fig.25 (a) shows the view from the bottom. Fig.24 A three-dimensional diagram of the state of the electric vacuum cleaner with the dust collecting part removed, (b) is a diagram showing Fig.24 A cross-sectional view of the vicinity of the connection between the dust collecting portion and the main body portion of an electric vacuum cleaner.

[0042] Fig.26 Yes means Fig.24 A three-dimensional diagram of a dust collecting unit of an electric vacuum cleaner.

[0043] Fig. 27 Yes means Fig.24 A three-dimensional view of the dust collecting part of the electric vacuum cleaner before it is installed.

[0044] Fig.28 Yes means Fig.24 A three-dimensional view of a state in which a first component according to a modified example is provided in an electric vacuum cleaner.

[0045] Fig.29 It is a perspective view showing a dust collecting portion provided with a filter supporting portion according to a modified example.

[0046] Fig.30 It is a perspective view showing a modified example of the electric blower.

[0047] Fig.31 yes Fig.30 Exploded three-dimensional diagram.

[0048] Fig.32 It is a perspective view of an electric vacuum cleaner according to a modified example in which a mop and a mop box are provided.

[0049] Fig.33 yes Fig.32 Enlarged view of the main part.

[0050] Fig.34 Yes Fig.32 An enlarged cross-sectional view of the installation portion of the mop box in the electric vacuum cleaner.

[0051] Fig.35 It is a perspective view showing an example of a mop.

[0052] Fig.36 Yes means Fig.35 Exploded view of the handle of the mop.

[0053] Fig.37 Yes means Fig.35 An exploded perspective view of a rotating portion of a mop.

[0054] Fig.38 (a) is a perspective view showing a modified example of the pipe portion, and (b) is a cross-sectional view of (a).

[0055] Fig.39 This is a perspective view showing an example in which a placement portion for placing accessories is provided in the electric vacuum cleaner.

[0056] Fig.40 This is a side view showing a modification example of the structure or arrangement of the electric blower in the electric vacuum cleaner by cutting away a part of the main body casing.

[0057] Fig.41 It is a cross-sectional view of a main part of a dust collecting section according to a modified example and its vicinity.

[0058] (Explanation of symbols)

[0059] 1: Electric vacuum cleaner

[0060] 10: Vacuum cleaner body

[0061] 14: Electric hair dryer

[0062] 20: Dust collection unit

[0063] 40: Suction parts

[0064] 42: Shell

[0065] 42a: Lower shell

[0066] 42b: Upper shell

[0067] 43: Suction port

[0068] 46: Rotating cleaning parts

[0069] 48: Cleaning parts driving mechanism

[0070] 70: Filter

[0071] 80: Filter support

[0072] 90: Shield

[0073] 100: Centrifugal separation unit

[0074] 106: Cover

[0075] 108: Support

[0076] 154: Support opening

[0077] 210: Driving machine

[0078] 210a: Main body

[0079] 212: Power transmission parts

[0080] 214: Output side pulley

[0081] 216: Driven side pulley

[0082] 220: Keeping parts

[0083] 224: Upper retaining part DETAILED DESCRIPTION

[0084] Hereinafter, an electric vacuum cleaner 1 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the following description, after the overall structure of the electric vacuum cleaner 1 is described in general, the main parts are described in further detail. In the following description, unless otherwise specified, the positional relationship in the up-down direction, the width direction, etc. is as follows: Figure 1 The description will be made based on the state in which the electric vacuum cleaner 1 is installed upright.

[0085] 《About the overall structure of the electric vacuum cleaner 1》

[0086] like Figures 1 to 3 As shown, the electric vacuum cleaner 1 is a vacuum cleaner having a stick-shaped (vertical) appearance. The electric vacuum cleaner 1 may be, for example, a rechargeable type, or obtain power from an external power source via a power cord. Figure 1 As shown, the electric vacuum cleaner 1 includes a vacuum cleaner body 10 , a dust collecting portion 20 (dust collecting device), a duct portion 30 (duct portion), and a suction tool 40 .

[0087] The vacuum cleaner body 10 is a part that constitutes the main body of the electric vacuum cleaner 1 and plays a role in generating suction to collect dust. Figure 2 As shown, the cleaner body 10 includes a drive circuit for driving an electric blower 14 or other electronic components and other components inside a main body case 12 constituting a frame. The electric blower 14 is used to suck air to generate airflow.

[0088] In addition, the vacuum cleaner body 10 is provided with a grip 16. The grip 16 is a portion provided for the user of the electric vacuum cleaner 1 to grip the vacuum cleaner body 10. That is, the electric vacuum cleaner 1 is configured as follows: the user can grip the vacuum cleaner body 10 by passing fingers other than the thumb through, for example, an opening portion formed by the grip 16. More specifically, a battery portion 17 in which a battery 17a is arranged is provided on one end side of the vacuum cleaner body 10, one end of the grip 16 is connected to the battery portion 17, and the other end of the grip 16 extends away from the battery portion 17 and is connected to a position further forward than the electric blower 14. The vacuum cleaner body 10 has an exhaust port 15 on the grip 16 side for exhausting air exhausted from the electric blower 14. The exhaust port 15 is provided in a manner facing the opening portion formed by the grip 16, and guides the exhaust air toward the side of the grip 16 to prevent the exhaust air from directly blowing on the hand of the user holding the grip 16.

[0089] The dust collecting part 20 is a part that collects dust sucked by the electric vacuum cleaner 1. The dust collecting part 20 is provided in a continuous manner with the vacuum cleaner body 10. A pipe connecting part 22 for connecting the pipe part 30 or the suction piece 40 is provided at the lower end side of the dust collecting part 20. The pipe connecting part 22 has a connecting opening that can be connected to the pipe part 30, the suction piece 40 or various accessories, and a dust collecting part side opening that can be connected to the first inlet 68 of the dust collecting part 20. The dust collecting part 20 is a characteristic part of the electric vacuum cleaner 1, so the specific structure will be described in detail later.

[0090] The tube portion 30 is a cylindrical member that detachably connects the vacuum cleaner body 10 and the suction piece 40. One end of the tube portion 30 is formed into a shape that can be inserted into the tube connection portion 22, and the other end is formed into a shape that can be connected to the suction piece 40. By connecting the vacuum cleaner body 10 and the suction piece 40 via the tube portion 30, a series of connected paths (air ducts) from the suction piece 40 to the vacuum cleaner body 10 can be formed.

[0091] The suction member 40 includes a housing 42 and a joint portion 44. Figures 8 to 16As shown in the figures, the suction member 40 has a suction port 43 at the bottom of the shell 42, and is provided with a rotating cleaning member 46, a cleaning member driving mechanism 48 and other components inside the shell 42. The shell 42 is a part arranged on the floor when cleaning, and has a shape that is long in the left-right direction relative to the direction in which the user performs actions during cleaning, that is, the front-to-back direction. The inside of the shell 42 is formed with an intake space with the ground side as an opening end and used to inhale air and dust from the outside. In addition, the joint part 44 is mounted on the shell 42 in a manner that can rotate within a specified rotation range (front-to-back direction and left-to-right direction). The joint part 44 is a part connected to the end of the above-mentioned pipe part 30. The joint part 44 is cylindrical, and the internal space is connected to the suction space. The joint part 44 is in a state of being engaged with the side of the shell 42 by being set in an upright posture. Regarding the suction member 40, the characteristic parts will also be described in detail later.

[0092] The electric vacuum cleaner 1 is roughly configured as described above. The electric vacuum cleaner 1 has characteristic structures in the dust collecting portion 20, the suction tool 40 and other parts. Hereinafter, the structure of each part of the electric vacuum cleaner 1 will be described in more detail.

[0093] 《Regarding the structure of the dust collecting section 20》

[0094] Below, refer to Figures 3 to 6 The dust collecting unit 20 will be described in detail. The dust collecting unit 20 is detachably provided with respect to the cleaner body 10. The dust collecting unit 20 includes a dust collecting container 50, a centrifugal separation unit 100, and a filter 70 ( Figure 5 ), the filter support portion 80 and the shield portion 90. The dust collecting portion 20 is a so-called cyclone-type dust collecting device. That is, the dust collecting portion 20 can collect dust in the process of introducing air from an inlet (first inlet 68) provided in the dust collecting container 50, and exhausting the air after forming a swirling airflow in the dust collecting container 50. In addition, the dust collecting portion 20 can adopt a so-called single-stage separation method, or a multi-stage separation method of more than three stages, but in the present embodiment, a so-called two-stage centrifugal separation method is adopted. Therefore, the dust collecting portion 20 can centrifugally separate into small dust and large dust by performing two-stage centrifugal separation and collect dust.

[0095] The dust collecting container 50 is a container having an outer container 52, an inner container 54, a bottom 58 and a cover 106. The dust collecting container 50 is formed by arranging the inner container 54 inside the outer container 52, installing the bottom 58 on one side (bottom side) of the axial direction of the outer container 52 to close it, and installing the cover 106 on the other side (upper end side) of the axial direction of the outer container 52.

[0096] The outer container 52 is a cylindrical container. The outer container 52 is divided into a dust collecting chamber 62 on one side (bottom side) in the axial direction and a centrifugal separation chamber 64 on the other side (upper end side) via a partition wall 60 (umbrella-shaped portion) located in the middle of the axial direction. The partition wall 60 can suppress the swirling airflow formed in the centrifugal separation chamber 64 from causing the dust in the dust collecting chamber 62 to fly.

[0097] The partition wall 60 is formed in an umbrella shape. The partition wall 60 is formed to descend from the radial inner side (axial side) toward the outer side of the outer container 52. The partition wall 60 has an inner opening 66a in the radial center (axial side) and an outer opening 66b in the circumferential direction (see Figure 4 ). The outer container 52 is formed so as to communicate the dust collecting chamber 62 with the centrifugal separation chamber 64 via the inner opening 66a and the outer opening 66b. That is, the inner opening 66a is a substantially circular opening formed in a manner communicating with the bottom side of the centrifugal separation unit 100. The outer opening 66b is located radially outward of the inner opening 66a and is an opening formed by cutting off a portion of the partition wall 60.

[0098] like Figure 3 and Figure 4 As shown, the outer container 52 has a first inlet 68 at the outer periphery. The first inlet 68 opens at the middle part of the outer container 52 in the axial direction (a position closer to the centrifugal chamber 64 side than the partition wall 60). Therefore, the first inlet 68 is connected to the centrifugal chamber 64. The first inlet 68 opens in a rectangular shape in an inlet portion 68a extending in a cylindrical shape from the outer surface of the outer container 52. The inlet portion 68a extends in a manner inclined from the circumferential end toward the central side. In addition, the first inlet 68 is provided at a position corresponding to the peripheral guide rib 116 provided in the centrifugal outer cylinder 102 of the centrifugal separation part 100 described later, and the peripheral guide rib 116 extends in a manner abutting against the inner peripheral surface of the outer container 52 to form a part of the air duct together with the inlet portion 68a. As a result, the outer container 52 can allow air to flow into the interior of the centrifugal chamber 64 along the inner peripheral surface of the outer container 52 via the first inlet 68, and the direction is specified by the peripheral guide rib 116 so that the air is easy to flow in one direction.

[0099] The inner container 54 is a container disposed inside the outer container 52. The inner container 54 is disposed in the dust collecting chamber 62 located below the partition wall 60. The inner container 54 is disposed in a manner that the axial position is substantially consistent with the outer container 52. The inner container 54 divides the internal space of the dust collecting chamber 62 into an outer dust collecting chamber 72 and an inner dust collecting chamber 74. The inner container 54 is open at one end side (bottom side) in the axial direction. In addition, the inner container 54 is communicated with the inner opening 66a provided in the partition wall 60 at the other end side (upper end side) in the axial direction.

[0100] The inner container 54 has an inner container reduced diameter portion 76 that is tapered from the upper end to the middle portion in the axial direction. In addition, the inner container 54 has a cylindrical shape with a substantially uniform opening diameter in a portion below the inner container reduced diameter portion 76. The inner container 54 is airtightly connected to the centrifugal separation outer cylinder 102 of the centrifugal separation unit 100 via a first sealing portion S1 described in detail later.

[0101] The bottom 58 closes the bottom of the dust collecting container 50 (the dust collecting chamber 62 side). The bottom 58 can close or open the bottom of the dust collecting container 50. Figure 4 As shown, the bottom 58 is connected to the dust container 50 via a hinge 82. In addition, the bottom 58 can be fixed to the dust container 50 in a closed state by a locking portion 84 located on the radially opposite side of the dust container 50 relative to the hinge 82.

[0102] The bottom 58 is provided with a swirl suppression rib 86. The swirl suppression rib 86 is provided so as to be arranged on the inner side of the outer dust collecting chamber 72 formed between the inner container 54 and the outer container 52 when the bottom of the dust collecting container 50 is closed by the bottom 58. In addition, the swirl suppression rib 86 is a rib for suppressing the swirl airflow formed near the bottom 58 from causing the dust collected in the outer dust collecting chamber 72 to swirl. The swirl suppression rib 86 is provided in a manner protruding from the inner surface of the bottom 58 (the surface facing the inner side of the dust collecting container 50 when the bottom 58 is closed) along the axial direction of the dust collecting container 50. In addition, a plurality of swirl suppression ribs 86 (four in the present embodiment) are provided in the direction (circumferential direction) around the axis of the dust collecting container 50. In addition, a second sealing member 88 is provided on the inner surface of the bottom 58.

[0103] The second sealing member 88 constitutes a second sealing portion S2 described in detail below. When the bottom portion 58 is closed, the second sealing member 88 comes into close contact with the lower end portion of the inner container 54, thereby hermetically sealing the inner container 54.

[0104] The centrifugal separation unit 100 is a unit for centrifugally separating dust and includes a centrifugal separation outer cylinder 102 , a centrifugal separation inner cylinder 104 , a cover 106 , and a support 108 .

[0105] The centrifugal outer cylinder 102 is a cylinder that can accommodate the centrifugal inner cylinder 104. The centrifugal outer cylinder 102 has small holes 114 and outer peripheral guide ribs 116 on the peripheral surface (see Figure 3 ) and positioning protrusions 118. The centrifugal outer cylinder 102 is a component that forms a first centrifugal chamber 110 between the outer container 52 of the dust collecting container 50 and a second centrifugal chamber 112 inside.

[0106] The first centrifugal separation chamber 110 can introduce air flow from the outside through the first inlet 68 provided on the outer container 52 of the dust collecting container 50. The first centrifugal separation chamber 110 is an annular space formed between the centrifugal separation outer cylinder 102 and the outer container 52 of the dust collecting container 50. The first centrifugal separation chamber 110 can generate a swirling airflow by allowing air to flow in from the first inlet 68 along the tangential direction of the centrifugal separation outer cylinder 102. Thus, the larger dust contained in the introduced air can be centrifugally separated (first centrifugal separation). The larger dust separated from the air by the first centrifugal separation falls toward the partition wall 60 forming the bottom of the first centrifugal separation chamber 110. The dust falling to the partition wall 60 falls to the outer dust collecting chamber 72 provided below the partition wall 60 through the outer opening 66b provided on the partition wall 60 and is recovered.

[0107] A plurality of small holes 114 are provided on the circumferential surface of the centrifugal outer cylinder 102. The small holes 114 connect the first centrifugal chamber 110 formed on the outer side of the centrifugal outer cylinder 102 with the second centrifugal chamber 112 formed on the inner side. Therefore, the centrifugal separation unit 100 can introduce the air from which the large dust is recovered in the first centrifugal chamber 110 into the second centrifugal chamber 112 via the small holes 114.

[0108] The peripheral guide ribs 116 are provided on the peripheral surface of the centrifugal outer cylinder 102 and are provided at positions corresponding to the first inlet 68 provided on the outer container 52 of the dust collecting container 50. The peripheral guide ribs 116 guide the air flowing into the inner side of the first centrifugal separation chamber 110 from the first inlet 68 to flow along the outer peripheral surface of the centrifugal outer cylinder 102 or the inner peripheral surface of the outer container 52 toward a predetermined direction around the axial direction.

[0109] like Figure 5 , Figure 7 As shown, the positioning protrusion 118 is a protrusion protruding from the outer peripheral surface of the centrifugal separation outer cylinder 102 toward the radial outer side. When the centrifugal separation unit 100 is installed in the dust collection container 50, the positioning protrusion 118 is embedded in the protrusion receiving portion 52a of the outer container 52 of the dust collection container 50, thereby limiting the circumferential rotation of the centrifugal separation outer cylinder 102 relative to the dust collection container 50.

[0110] The centrifugal inner cylinder 104 is arranged in the second centrifugal separation chamber 112 formed inside the centrifugal outer cylinder 102. A plurality of centrifugal inner cylinders 104 are provided (five in this example). The centrifugal inner cylinders 104 are arranged roughly evenly in the second centrifugal separation chamber 112 along the axial direction (circumferential direction). In addition, a plurality of (five in this embodiment) centrifugal inner cylinders 104 are integrated at the upper end side by the upper wall portion 120 formed in an annular shape. The centrifugal inner cylinders 104 are respectively arranged so that their respective upper ends are circumscribed with the inner circumferential surface of the upper wall portion 120.

[0111] The centrifugal separation inner cylinder 104 has a substantially uniform outer diameter (opening diameter) from the upper end side to the middle part, and has a centrifugal separation reduced diameter portion 122 that is reduced in diameter into a conical shape from the middle part to the lower end side. The centrifugal separation inner cylinder 104 is arranged in a posture with the axial direction facing the up and down direction in the second centrifugal separation chamber 112. The centrifugal separation inner cylinder 104 has a second inlet 124 on the upper end side. The second inlet 124 opens near the inner peripheral surface of the upper wall portion 120 formed in an annular shape. Thus, the second inlet 124 can introduce air flow into the inner side of the centrifugal separation inner cylinder 104 along the curvature of the inner peripheral surface of the upper wall portion 120. When the airflow enters the centrifugal separation inner cylinder 104 via the second inlet 124, a swirling airflow that advances downward (toward the direction of the centrifugal separation reduced diameter portion 122) is formed. Thus, the smaller dust contained in the air introduced into the centrifugal separation inner cylinder 104 is centrifugally separated (second centrifugation). The dust separated by the second centrifugal separation is discharged from the lower end side of each centrifugal separation inner cylinder 104 toward the dust collecting container 50. The second centrifugal separation chamber 112 is connected to the inner dust collecting chamber 74 formed in the dust collecting container 50. Therefore, the dust discharged from each centrifugal separation inner cylinder 104 falls toward the inner dust collecting chamber 74 and accumulates. In addition, the air introduced into the centrifugal separation inner cylinder 104 becomes an ascending airflow from the lower side to the upper side of the centrifugal separation inner cylinder 104 after the dust is removed by the second centrifugal separation, and is discharged toward the upper side (downstream side).

[0112] The cover 106 is installed in a manner of covering the upper end side of the centrifugal outer cylinder 102. The cover 106 includes a cover plate portion 130 and an insertion portion 132. The cover plate portion 130 is a plate-shaped portion formed to be roughly circular in a plan view. The cover plate portion 130 includes a closing portion 134 formed to be roughly circular, and a vertical portion 136 erected relative to the closing portion 134 at the outer edge of the closing portion 134. On the closing portion 134, a centrifugal exhaust port 138 is provided at a position corresponding to each of the centrifugal inner cylinders 104 provided with a plurality of them. The vertical portion 136 protrudes in both directions toward the surface side and the back side of the closing portion 134. In addition, the insertion portion 132 is a cylindrical portion provided corresponding to each of the centrifugal exhaust ports 138 provided in the closing portion 134. The insertion portion 132 protrudes toward the back side (upstream side) of the closing portion 134. The insertion portion 132 is inserted into each of the centrifugal inner cylinders 104, respectively. In addition, the insertion portion 132 also protrudes toward the surface side (downstream side) of the closing portion 134, and may protrude to a height above the closing portion 134, but in the present embodiment, it protrudes to a height lower than the closing portion 134. Between the closing portion 134 and the insertion portion 132, a recessed portion 132a lower than the height of the insertion portion 132 is provided around the insertion portion 132. Thus, even if dust attached to the filter 70 naturally falls off onto the closing portion 134 and moves under the action of the airflow, it can be accumulated in the recessed portion 132a.

[0113] The support portion 108 supports the filter support portion 80 from the upstream side (the lower side in the state shown in the figure). The support portion 108 is a rib that supports and reinforces the filter support portion 80. The support portion 108 has a central support rib 140 and outer support ribs 142.

[0114] The central support rib 140 is a rib that protrudes toward the front side (downstream side) from the radially approximately central portion of the closing portion 134 of the cover plate portion 130. The central support rib 140 can also be used as a handle when the centrifugal separation portion 100 is removed from the dust collecting container 50. In addition, the outer support rib 142 is a rib that is provided radially outside the closing portion 134 compared to the central support rib 140. The outer support rib 142 protrudes toward the front side (downstream side) of the closing portion 134 in the same manner as the central support rib 140.

[0115] The filter 70 is used to capture dust contained in the air discharged from the centrifugal separation exhaust port 138 of the centrifugal separation unit 100. The filter 70 is composed of, for example, nonwoven fabric or the like. The filter 70 is arranged on the downstream side of the air supply direction compared with the centrifugal separation unit 100. Specifically, the filter 70 is arranged on the cover 106 via the filter support 80, and the cover 106 is arranged on the upper end side of the centrifugal separation unit 100.

[0116] like Figure 6 As shown, the filter support part 80 is a member for supporting the filter 70 at a position closer to the downstream side (upper side in the example shown) in the air flow direction than the centrifugal separation exhaust port 138 of the centrifugal separation part 100. The filter support part 80 has a support frame 150, an exhaust port facing part 152, and a support opening part 154.

[0117] The support frame 150 supports the filter 70 from the upstream side of the flow direction of air (exhaust) in a state where the filter 70 is separated from the centrifugal separation exhaust port 138. The support frame 150 has an outer edge portion 156 formed in an annular shape, a radial connection portion 158 connecting the outer edge portion 156 and each exhaust port opposing portion 152, and a circumferential connection portion 160 connecting the exhaust port opposing portions 152, 152 adjacent to each other in the circumferential direction.

[0118] The outer edge portion 156 is a portion forming the outer edge of the support frame 150. The outer diameter of the outer edge portion 156 is equal to the inner diameter of the upright portion 136 of the cover portion 106 forming the outer edge of the cover plate portion 130. Therefore, when the support frame 150 is embedded in the area surrounded by the upright portion 136 in the cover portion 106, the outer edge portion 156 is erected at a position adjacent to the upright portion 136 on the radial inner side. In addition, the outer edge portion 156 is provided with a groove 156a formed over substantially the entire circumference. The groove 156a is open upward.

[0119] The radial connection portion 158 is provided according to the number of the exhaust port opposing portions 152 (five in this embodiment). The radial connection portion 158 is provided radially in a state of looking down at the support frame 150, and connects the exhaust port opposing portions 152 and the outer edge portion 156. In addition, the circumferential connection portion 160 connects the exhaust port opposing portions 152 and 152 in a straight line. In this embodiment, since there are five exhaust port opposing portions 152, the circumferential connection portion 160 is provided in a substantially pentagonal shape.

[0120] The exhaust port facing portion 152 is separated from the centrifugal exhaust port 138 toward the downstream side of the air exhaust direction and is provided at a position facing the centrifugal exhaust port 138. The exhaust port facing portion 152 is formed to have substantially the same size and shape as the opening area of ​​the centrifugal exhaust port 138.

[0121] The support opening 154 is one or more openings provided to discharge the air discharged from each centrifugal separation exhaust port 138 toward the downstream side. In the present embodiment, the support frame 150 is open except for the portion provided with the outer edge portion 156 or the radial connection portion 158, the circumferential connection portion 160, and the exhaust port opposing portion 152, so as to reduce the outflow resistance or pressure loss of the air discharged from the plurality of centrifugal separation exhaust ports 138, or to be able to utilize the filter 70 as a whole, thereby achieving an improvement in the capture effect. In the present embodiment, the open portion becomes the support opening 154. In other words, the support opening 154 is composed of a plurality of openings surrounded by the outer edge 156, the radial connection portion 158, the circumferential connection portion 160, and the exhaust port opposing portion 152.

[0122] The shield part 90 is a shield installed at a position closer to the downstream side (upper side in the example in the figure) of the air flow direction than the above-mentioned filter support part 80. The shield part 90 is a component formed in a substantially cylindrical shape, and has a dust collecting part discharge port 170 on its downstream side (upper side in the example in the figure). The inner peripheral surface of the shield part 90 has an L-shaped groove (axial groove and circumferential groove), and the outer peripheral surface of the dust collecting container 50 has a protrusion extending in the radial direction. When the shield part 90 is installed on the dust collecting container 50, the protrusion is inserted into the entrance of the axial groove, and the shield part 90 is moved in the direction of covering the dust collecting container 50 so that the protrusion slides to the end of the axial groove. Then, the shield part 90 is rotated in the circumferential direction so that the protrusion slides from the end of the axial groove to the end of the circumferential groove continuous with the axial groove. Through the above-mentioned action, the shield part 90 is fixed to the dust collecting container 50. Here, a sealing component can also be configured between the shield part 90 and the dust collecting container 50. The sealing member may be configured to be annularly disposed at the upper end of the dust collecting container 50. Thus, the airtightness between the dust collecting container 50 and the hood portion 90 can be ensured.

[0123] In addition, the shield part 90 has a double-layer structure in which the peripheral wall 172 is composed of an outer peripheral wall 174 and an inner peripheral wall 176. The outer peripheral wall 174 extends further toward the axial direction than the inner peripheral wall 176. The inner diameter of the outer peripheral wall 174 is equal to the outer diameter of the outer container 52 constituting the dust collecting container 50. In addition, the inner peripheral wall 176 can be embedded in the groove 156a provided on the outer edge portion 156 of the support frame 150. Therefore, the peripheral wall 172 is formed as follows: the outer container 52 constituting the dust collecting container 50, the vertical portion 136 forming the outer edge of the cover plate portion 130, and the outer edge portion 156 of the filter support portion 80 are inserted between the outer peripheral wall 174 and the inner peripheral wall 176 in an overlapping state, and the inner peripheral wall 176 can be embedded and fixed in the groove 156a of the support frame 150. Thus, the outer peripheral edge portion of the filter 70 disposed on the filter support portion 80 can be sandwiched and fixed between the inner peripheral wall 176 and the groove 156 a of the support frame 150 .

[0124] As described above, the dust collecting section 20 separates and collects the dust by introducing the air sucked together with the dust in the suction piece 40 and generating a swirling airflow. Therefore, the configuration that can be sealed in each part of the dust collecting section 20 without leakage of air or the like becomes an important element in ensuring the dust collecting function in the dust collecting section 20. Therefore, in the dust collecting section 20, five sealing sections consisting of the first sealing section S1 to the fifth sealing section S5 are provided.

[0125] Specifically, the first seal portion S1 is provided as a seal structure for airtightly connecting the inner container 54 and the centrifuge outer cylinder 102. The first seal portion S1 is formed by inserting the lower end of the centrifuge outer cylinder 102 into the seal groove 55 provided on the upper end side of the inner container 54 and airtightly connecting them.

[0126] In addition, the second sealing portion S2 is formed using a second sealing member 88, and the second sealing member 88 is provided on the inner surface of the bottom 58 that closes the bottom of the dust collecting container 50. The second sealing portion S2 is formed by closing the bottom 58 so that the second sealing member 88 is in close contact with the lower end of the inner container 54 that constitutes the dust collecting container 50. By providing the second sealing portion S2, the inner container 54 is hermetically sealed, so that the outer dust collecting chamber 72 formed inside and outside the inner container 54 can be separated from the inner dust collecting chamber 74 in an airtight manner.

[0127] The third sealing portion S3 is formed by interposing the third sealing member 57 between the bottom 58 and the end of the outer container 52 on the bottom side of the dust collecting container 50. Thus, it is possible to suppress the outflow or inflow of air from between the bottom 58 and the end of the outer container 52 relative to the dust collecting container 50.

[0128] like Figure 5 , Figure 7As shown in the figure, the fourth sealing part S4 is a part that seals the inner wall of the dust collecting container 50 (outer container 52) and the upper wall 120 of the centrifugal separation inner cylinder 104 constituting the centrifugal separation part 100 by the fourth sealing member 125. One end of the fourth sealing member 125 is inserted into the groove 120b, which is formed on the entire circumference of the flange 120a and is open to the side. The flange 120a is a part of the upper wall 120 that protrudes radially outward from the circumferential surface of the centrifugal separation outer cylinder 102. In addition, in the fourth sealing part S4, the vertical part 136 erected on the outer peripheral side of the cover plate part 130 constituting the cover part 106 protrudes downward from the flange 120a of the upper wall 120 and abuts against the fourth sealing member 125. In addition, the other end of the fourth sealing member 125 protrudes radially outward further than the vertical part 136 and is supported on the step part formed in the outer container 52 constituting the dust collecting container 50. The fourth sealing portion S4 is formed into the above-mentioned structure to ensure airtightness near the lid portion 106. That is, the fourth sealing portion S4 ensures airtightness between the flange portion 120a and the upright portion 136, airtightness between the outer container 52 and the centrifugal separation outer cylinder 102, and airtightness between the outer container 52 and the upright portion 136. In addition, in the fourth sealing portion S4, the fourth sealing member 125 may be supported at the upper end of the outer container 52.

[0129] The fifth sealing portion S5 ensures the airtightness near the cover portion 106 in the same manner as the fourth sealing portion S4. The fifth sealing portion S5 is used to ensure the airtightness of the joint portion between the back side (upstream side) of the cover portion 130 constituting the cover portion 106 and the upper end of the upper wall portion 120 of the centrifugal separation inner cylinder 104. In the fifth sealing portion S5, a thin sheet-shaped fifth sealing member 131 is interposed between the back side of the cover portion 130 and the upper end of the upper wall portion 120 to seal airtightly. In addition, by screwing the cover portion 130 and the fifth sealing member 131 together on the upper wall portion 120, the airtightness of the fifth sealing portion S5 can be improved. Thus, it is possible to effectively suppress the leakage of air from between the centrifugal separation inner cylinder 104 and the cover portion 106, and the leakage of air flowing in from the small hole 114 of the centrifugal separation outer cylinder 102 from between the cover portion 106 and the upper wall portion 120.

[0130] In addition, if Figure 2 or Figure 4 As shown, a recessed portion 20b is provided at the bottom 58 of the dust collecting portion 20 at a position closer to the bottom side than the locking portion 84. Figure 2As shown, the recess 20b is a convex portion 10a that can be locked in the lower end side of the portion in contact with the back side of the dust collecting portion 20 in the pipe connecting portion 22. Furthermore, in the dust collecting portion 20, a locking portion 20c is provided on the radially opposite side of the recess 20b and on the opposite side of the bottom 58. The locking portion 20c protrudes upward. The locking portion 20c is embedded in the recess 10b provided in a manner open downward on the front side of the vacuum cleaner body 10, so that the dust collecting portion 20 can be fixed to the vacuum cleaner body 10 side. The dust collecting portion 20 has an inclined surface 20a on the top surface side of the hood portion 90. The inclined surface 20a is roughly consistent with the inclination of the bottom surface of the portion of the vacuum cleaner body 10 that accommodates the electric blower 14. When the dust collecting part 20 is mounted on the vacuum cleaner body 10, if the convex part 10a locked in the concave part 20b is rotated as a fulcrum so that the first inlet 68 is close to the dust collecting part opening connected to the tube connecting part 22, the locking part 20c is embedded in the concave part 10b. Therefore, by forming the inclined structure in this way, the electric vacuum cleaner 1 can easily perform the operation of mounting the dust collecting part 20 below the electric blower 14.

[0131] 《Regarding the structure of the suction member 40》

[0132] Next, refer to Figures 8 to 16 , the suction member 40 will be described in detail with a focus on the characteristic parts. As described above, the suction member 40 includes a housing 42, a joint portion 44, a rotating cleaning member 46, and a cleaning member driving mechanism 48 (see Figure 8 The suction member 40 is connected to the vacuum cleaner body 10 via the dust collecting part 20 by connecting the pipe part 30 or the vacuum cleaner body 10 to the joint part 44. In addition, the suction member 40 has the following structure: the housing 42 has a suction space open to the ground side, and the rotating cleaning member 46 is rotatably supported inside the suction space.

[0133] like Fig. 9 As shown in the figures, the rotary cleaning member 46 has a cleaning member body 200 and a mounting portion 202 extending along the long side direction (left-right direction) of the housing 42. The cleaning member body 200 is formed into a cylindrical shape, and a brush mounting portion 260 is provided outside the cleaning member body 200. The brush is spirally arranged on the outer periphery of the brush mounting portion 206 with the axial center position of the cleaning member body 200 as the center.

[0134] The mounting portion 202 is a portion for mounting the rotating cleaning member 46 relative to the housing 42. The mounting portion 202 is mounted on the cleaning member body 200 as a separate component from the cleaning member body 200 on one side and the other side in the longitudinal direction of the cleaning member body 200, but may also be integral with the cleaning member body 200. The rotating cleaning member 46 is rotatably supported on the housing 42 by mounting the mounting portions 202, 202 (hereinafter, the two may be distinguished as "mounting portion 202a" and "mounting portion 202b" as needed) provided at both ends at a predetermined mounting position provided in the housing 42.

[0135] Specifically, if Fig.13 As shown in (a), the mounting portion 202a has an end portion 205 in a prismatic shape (the cross-sectional shape is approximately square) at one axial end side of the rotating cleaning member 46, and a flange portion 207a provided at a position adjacent to the end portion 205 in the axial direction. The end portion 205 is rotatably mounted relative to the cleaning member body 200 (flange portion 207a).

[0136] Here, if Fig.10 or Fig.11 As shown in FIG. 1 , the receiving portion 42c of the housing 42 to which the mounting portion 202a of the rotary cleaning member 46 is mounted can be separated into a lower receiving portion 42x and an upper receiving portion 42y. The lower receiving portion 42x can be removed from the back side of the housing 42. Specifically, as shown in FIG. Fig.11As shown, in the portion of the upper shell 42b where the upper receiving portion 42y is formed, a convex upper engaging portion 42p is provided on the front side (upper side in the state shown in the figure) of the shell 42, and a concave upper engaged portion 42q is provided on the back side (lower side in the state shown in the figure). In addition, in the lower receiving portion 42x, a concave lower engaged portion 42r capable of engaging with the upper engaging portion 42p is provided at a position corresponding to the upper engaging portion 42p on the side of the upper receiving portion 42y, and a convex lower engaging portion 42s is provided at a position corresponding to the upper engaged portion 42q. A claw portion 42t is provided on the lower receiving portion 42x, and a shaking operation of the lower engaging portion 42s can be performed. Since the above-mentioned structure is formed, after the lower engaged portion 42r is engaged with the upper engaged portion 42p, the lower engaging portion 42s is inserted into the upper engaged portion 42q and engaged, so that the lower receiving portion 42x can be mounted to the upper receiving portion 42y. On the contrary, when the lower receiving portion 42x is removed from the upper receiving portion 42y, the engagement between the lower engaging portion 42s and the upper engaged portion 42q is first released by operating the claw portion 42t. Then, by removing the lower engaged portion 42r from the upper engaged portion 42p, the lower receiving portion 42x can be removed from the upper receiving portion 42y. In addition, the upper receiving portion 42y is arranged on the inner side of the housing 42. By mounting the lower receiving portion 42x to the back side of the housing 42, the receiving portion 42c can be formed.

[0137] like Fig.10 or Fig.12 As shown in the figure, the upper receiving portion 42y includes an upper end embedded portion 42h, an upper flange embedded portion 42i, and an upper shaft support portion 42j. The upper end embedded portion 42h is a portion open toward the bottom surface side of the housing 42 in a manner that the above-mentioned prism-shaped end portion 205 can be embedded. In addition, the upper flange embedded portion 42i is a portion open toward the bottom surface side of the housing 42 in a manner that the flange portion 207a can be embedded. The upper shaft support portion 42j is a portion bent into an arc shape along the axis constituting the mounting portion 202a.

[0138] like Fig.10 or Fig.11As shown, the lower side bearing part 42x has a lower side end contact part 42k and a lower side shaft support part 42l at positions corresponding to the upper side end embedded part 42h and the upper side shaft support part 42j. The lower side end contact part 42k is a block-shaped object formed to abut against the outer peripheral surface (one side) of the end 205 from the cleaning surface side, and the end 205 is fixed to the housing 42 by making the upper side end embedded part 42h abut against the other outer peripheral surfaces (three sides) of the end 205. In addition, the lower side shaft support part 42l and the upper side shaft support part 42j are bent along the axis constituting the mounting part 202a. The rotary cleaning member 46 can be mounted to the housing 42 by mounting the lower side bearing part 42x to the upper side bearing part 42y after the end 205 and the flange part 207a are respectively embedded in the upper side end embedded part 42h and the upper side flange embedded part 42i.

[0139] On the other hand, Fig.13 As shown, the mounting portion 202b supports the end of the other axial end side (the opposite side of the mounting portion 202a) of the rotating cleaning member 46. The mounting portion 202b has a first mounting member 202x that can be connected to the second mounting member 202y described later. The first mounting member 202x is fixed to the end of the cleaning member body 200. The second mounting member 202y is provided on the driven side pulley 216 described later and is arranged on the housing 42 (lower housing 42a) side. The first mounting member 202x and the second mounting member 202y can be connected and separated in the axial direction.

[0140] The first mounting member 202x includes a mounting recess 202e and a first flange portion 202i. The mounting recess 202e is formed in a concave shape on the end surface of the mounting portion 202b. The shape of the mounting recess 202e can be any shape, but in the present embodiment, it is a cross shape. The mounting recess 202e is a portion into which a mounting protrusion 202j of the second mounting member 202y described later can be inserted and engaged. The first flange portion 202i is provided at the end of the first mounting member 202x (the end on the side of the second mounting member 202y) so as to bulge outward in the radial direction.

[0141] The second mounting member 202y has a mounting protrusion 202j and a shaft portion 202k. The mounting protrusion 202j protrudes along the axial direction at the end of the second mounting member 202y and can be engaged with the above-mentioned mounting recess 202e. The shape of the mounting protrusion 202j can be any shape, but in the present embodiment, it is a cross-shaped shape like the mounting recess 202e. The shaft portion 202k is an axis body arranged at the axial center position of the second mounting member 202y. The shaft portion 202k is inserted from one side of the plate-shaped retaining member 220 arranged on the housing 42 toward the other side. The shaft portion 202k is connected to the driven side pulley 216 of the cleaning member driving mechanism 48 described later. As a result, the rotating cleaning member 46 can rotate in conjunction with the driven side pulley 216.

[0142] In this embodiment, the suction member 40 is provided with a cleaning member driving mechanism 48, and the rotating cleaning member 46 is driven by receiving the power output from the cleaning member driving mechanism 48. Fig. 9 or Fig.13 As shown in FIGS. 1 and 2 , the cleaning tool driving mechanism 48 includes a driving machine 210 , a power transmission member 212 , an output side pulley 214 , a driven side pulley 216 , and the like.

[0143] The driving machine 210 is composed of an electric motor and the like disposed in the housing 42. The driving machine 210 is arranged in an area on the back side relative to the rotating cleaning member 46. In addition, the power transmission member 212 is composed of a toothed annular belt. In addition, the output side pulley 214 is a toothed pulley mounted on the output shaft possessed by the driving machine 210. In addition, the driven side pulley 216 is a toothed pulley integrally disposed on the mounting portion 202b. The cleaning member driving mechanism 48 is a power transmission member 212 composed of an annular belt hung between the output side pulley 214 and the driven side pulley 216. Therefore, by operating the driving machine 210, the rotational power can be transmitted to the mounting portion 202b side, and the rotating cleaning member 46 can be driven to rotate in the suction space of the housing 42.

[0144] In addition, if Fig.13 or Fig.14 As shown in the figures, the various components constituting the cleaning member driving mechanism 48 are held by a retaining member 220. The retaining member 220 is vertically arranged in the area on the side where the second mounting member 202y is mounted in the housing 42. In other words, the retaining member 220 is arranged side by side with the rotating cleaning member 46 in the axial direction of the rotating cleaning member 46. In addition, the retaining member 220 is a plate-shaped member extending along the arrangement direction of the rotating cleaning member 46 and the driving machine 210. With respect to the retaining member 220, an output side pulley 214, a driven side pulley 216 and a power transmission member 212 are arranged on the side opposite to the rotating cleaning member 46. The retaining member 220 may also be configured such that the sound insulation ribs extend along the axial direction of the rotating cleaning member 46 in a manner that covers at least a portion of the power transmission member 212 from above. The sound insulation ribs soundproof by covering a portion of the power transmission member 212. In addition, the holding member 220 may also be provided with a reinforcement rib protruding from the same side or the opposite side of the rotating cleaning member 46 and extending in the arrangement direction of the rotating cleaning member 46 and the driving machine 210. In this way, the bending of the holding member 220 can be suppressed, and the positioning accuracy of the rotating cleaning member 46 and the driving machine 210 in the axial direction can be improved. In addition, the holding member 220 specifically includes a lower holding member 222 and an upper holding member 224 (see Fig.14 ).

[0145] like Fig. 9As shown in the figure, the lower retaining member 222 has a lower wall portion 222a and a fixing portion 222b that fixes the lower wall portion 222a to the lower shell 42a side at the lower end side. The retaining member 220 is vertically arranged such that the lower retaining member 222 is screwed to the lower shell 42a in a plurality of fixing portions 222b, so that the lower wall portion 222a extends toward the front-to-back direction of the shell 42 (from the front side toward the back side). In addition, the fixing portion 222b is not necessarily required, as long as the structure can position the lower retaining member 222 to the lower shell 42a. Even with such a structure, the effect of the reinforcing ribs of the retaining member 220 can be fully exerted.

[0146] Here, refer to Fig.15 The cleaning member driving mechanism 48 is specifically described. At the axial center position of the driven side pulley 216, there is provided a shaft insertion hole 216a which is opened in a roughly elliptical (small-shaped) shape. The shaft portion 202k of the second mounting member 202y is a shaft body having a roughly elliptical (small-shaped) appearance shape similar to the shaft insertion hole 216a. In addition, on the lower wall portion 222a of the retaining member 220 described in detail later, there is provided a shaft support portion 220c which rotatably supports (supports) the second mounting member 202y. On the shaft support portion 220c, there is provided a bearing (bearing) 225 which is rotatably supported by inserting the shaft portion 202k therein. The second mounting member 202y is fixed to the driven side pulley 216 by inserting the shaft portion 202k through the bearing 225 provided on the shaft support portion 220c of the lower wall portion 222a and the shaft insertion hole 216a provided on the driven side pulley 216, and by attaching the screw (fixing member) 227 to the axial center position of the shaft portion 202k from the opposite side of the second mounting member 202y across the driven side pulley 216. Due to the above-mentioned structure, the second mounting member 202y is connected to the first mounting member 202x provided on the rotating cleaning member 46 side, so that the rotating cleaning member 46 can rotate in conjunction with the driven side pulley 216.

[0147] Therefore, it can also be expressed that the second mounting member 202 y is provided as a part of the driven side pulley 216 .

[0148] A shaft support portion 220c is provided at a position on the front side of the housing 42 in the lower wall portion 222a, and the shaft support portion 220c rotatably supports (supports) the first mounting member 202x provided at the end of the rotating cleaning member 46. In addition, a bearing portion 222d is provided at a position on the back side of the housing 42 in the lower wall portion 222a, and the bearing portion 222d is cut in a manner that can support the driver 210. Specifically, the driver 210 is provided with an output shaft on a driver body 210a constituting a motor, and has a driver body 210a1 constituting most of the motor, and a bulging portion 210a2 having a smaller diameter than the driver body 210a1 and bulging in the axial direction. The output shaft is provided on the bulging portion 210a2. The bearing portion 222d supports the bulging portion 210a2, but this is only an example. The receiving portion 222d may be configured to extend in the axial direction of the driving machine body 210a1 and support the cleaning surface side of the driving machine body 210a1 in the radial direction.

[0149] The receiving portion 222d is formed to extend downward from the upper end of the lower wall portion 222a. Therefore, when assembling the driving machine 210, it can be easily installed by sliding the bulging portion 210a2 along the receiving portion 222d. In addition, if the assembly is performed in a state where the power transmission member 212 is hung on the output side pulley 214 and the driven side pulley 216, it will not be difficult to hang it due to the tension of the power transmission member 212, and it can be performed more easily. In addition, a threaded hole 222e is provided at a position adjacent to the receiving portion 222d. The threaded hole 222e is used to fix the end of the driving machine body 210a1 of the driving machine 210 to the lower wall portion 222a with a screw. In the present embodiment, the threaded hole 222e is provided at two locations on the front side and the back side across the receiving portion 222d.

[0150] In addition, if Fig.14 As shown, the upper holding member 224 is a plate-shaped portion erected relative to the portion (upper shell 42b) constituting the upper side of the housing 42. The upper holding member 224 is provided corresponding to the portion of the lower holding member 222 provided with the receiving portion 222d. Therefore, when the upper shell 42b and the lower shell 42a are combined to form the housing 42, the open portion on the upper side of the receiving portion 222d is closed by the upper holding member 224. Thus, the driving machine 210 can be prevented from accidentally falling off from the receiving portion 222d.

[0151] In addition, in this embodiment, an example is shown in which the upper holding member 224 is provided on the upper shell 42b side, but the present invention is not limited to this. For example, instead of providing the upper holding member 224 on the upper shell 42b side, other components such as a housing for accommodating the driving machine 210 may be provided, and the same structure as the upper holding member 224 may be provided on the component. Even in the case of forming such a structure, it is expected to obtain the same effect as when the upper holding member 224 is provided on the upper shell 42b side as described above.

[0152] like Fig.16 As shown by the arrow in (b), the joint portion 44 is mounted on the housing 42 so as to be rotatable in the front-rear direction and the left-right direction within a predetermined rotation range. Fig.14 (b) or Fig.16 As shown in (a), a bulging portion 44a is provided that bulges along the cylindrical axis direction of the joint portion 44. The length of the bulging portion 44a in the longitudinal direction of the shell 42 may also be longer than the diameter of the joint portion 44, but in the present embodiment, it is designed to be shorter than the diameter of the joint portion 44. In addition, the bulging portion 44a protrudes toward the upper shell 42b side when the joint portion 44 (tube portion 30) is in an upright position (the angle formed by the shell 42 and the joint portion 44 is, for example, 80 degrees to 90 degrees). In addition, a rib 42v protruding upward is provided at the top surface side and the rear side of the upper shell 42b. The rib 42v is in a roughly "コ"-shaped shape, and is formed with an embedded portion 42w that is open toward the rear side and the top. On the other hand, the bulging portion 44a provided on the joint portion 44 is formed so as to be embedded in the embedded portion 42w when the joint portion 44 is in an upright position. Specifically, the rib 42v abuts against the front side of the bulging portion 44a, and the lower end of the bulging portion 44a (the end of the joint portion 44 in the cylindrical axis direction) is supported on the top surface of the upper shell 42b surrounded by the rib 42v. Therefore, when the joint portion 44 (tube portion 30) is made to be in an upright position when the electric vacuum cleaner 1 is stored, the bulging portion 44a of the joint portion 44 is embedded in the embedding portion 42w, and becomes a stable state in the upright state. In addition, the vacuum cleaner support device for supporting the electric vacuum cleaner 1 and the electric vacuum cleaner 1 can also be used as an electric vacuum cleaner unit. The vacuum cleaner support device includes a suction piece placement table for placing the suction piece 40 of the electric vacuum cleaner 1, and a support column for supporting the tube portion 30 of the electric vacuum cleaner 1. Specifically, the pipe portion 30 includes an aluminum pipe main body portion, a resin first connection portion arranged at one end of the pipe main body portion in a manner that allows it to be connected to the pipe connection portion 22 of the vacuum cleaner body 10, and a resin second connection portion arranged at the other end of the pipe main body portion in a manner that allows it to be connected to the joint portion 44 of the suction piece 40. By fastening the second connection portion to a support, the electric vacuum cleaner 1 is supported in a self-supporting state.

[0153] The support has a cylindrical portion, which is formed with a front opening on the circumference that can receive the second connection part from the rear side. The front opening of the cylindrical portion reaches the upper end along the cylindrical axis direction, and supports the second connection part from the outside on the inner circumference. In addition, a support surface formed by its thickness portion is formed at the upper end of the opening of the cylindrical portion, supporting the second connection part from below. The support surface at the upper end of the cylindrical portion includes two first support surfaces away from the front opening side, and two second support surfaces closer to the front opening side than the first support surface. The second support surface is designed to be higher than the first support surface. Moreover, a step surface is formed between the second support surface and the first support surface. Therefore, the second support surface on one side, the first support surface on one side, and the first step surface between them are continuously formed, and the second support surface on the other side, the first support surface on the other side, and the second step surface between them are continuously formed. On the other hand, the second connection part has a large diameter portion located on the side of the pipe body, and a small diameter portion having a smaller diameter than the large diameter portion and located on the opposite side of the pipe body, and a step surface is formed between the large diameter portion and the small diameter portion. The small diameter portion is supported from the outside by the inner circumference of the cylindrical portion, the step surface of the second connection portion is supported from below by the two first support surfaces of the support, and the front side of the large diameter portion abuts against the first and second step surfaces of the upper end of the cylindrical portion, respectively, so that the second connection portion is locked to the cylindrical portion. Thus, the electric vacuum cleaner 1 is supported on the vacuum cleaner support device in a self-supporting state.

[0154] (1-1) The electric vacuum cleaner 1 of the present embodiment is characterized in that it comprises: a vacuum cleaner body 10 having an electric blower 14, and a dust collecting section 20 which is detachably mounted on the vacuum cleaner body 10 and collects dust attracted by the drive of the electric blower 14; the dust collecting section 20 comprises: a centrifugal separation section 100 for separating dust, a filter 70 which is arranged on the downstream side of the centrifugal separation section 100 and collects dust, and a filter supporting section 80 which supports the filter 70 from the upstream side in a state separated from the exhaust port of the centrifugal separation section 100.

[0155] The electric vacuum cleaner 1 of this embodiment is provided with a filter support part 80 at a position further downstream than the centrifugal separation part 100 of the dust collecting part 20. In addition, the filter support part 80 supports the filter 70 in a state where the filter 70 is separated from the exhaust port of the centrifugal separation part 100, and can suppress the clogging of the exhaust port and the reduction of the suction capacity associated therewith. Therefore, according to the above-mentioned structure, the electric vacuum cleaner 1 having the dust collecting part 20 that can effectively suppress the reduction of the suction capacity due to the clogging of the exhaust port of the centrifugal separation part 100 by the filter 70 can be provided.

[0156] (1-2) The electric vacuum cleaner 1 described above is characterized in that the filter support portion 80 has one or more support openings 154 for discharging air to the downstream side.

[0157] According to this configuration, the air exhausted from the centrifugal separation unit 100 can be smoothly exhausted through the support opening 154. Thus, an increase in exhaust resistance or a decrease in suction capability of the centrifugal separation unit 100 can be effectively suppressed.

[0158] (1-3) In the above-described electric vacuum cleaner 1, the centrifugal separation unit 100 includes the cover 106 provided with the exhaust port, and the cover 106 includes the support portion 108 that supports the filter support portion 80 from the upstream side.

[0159] According to this configuration, the filter support portion 80 can be reliably supported by the support portion 108 provided on the cover portion 106 .

[0160] (1-4) In the above-described electric vacuum cleaner 1 , the dust collecting portion 20 includes the hood portion 90 that holds the filter 70 by being combined with the filter support portion 80 .

[0161] According to this configuration, the filter 70 can be held by the combination of the filter support portion 80 and the cover portion 90. This eliminates the need to separately provide a component for holding the filter 70, which contributes to a corresponding simplification of the device configuration.

[0162] Here, a suction piece used in a conventionally known electric vacuum cleaner is studied, and there is a suction piece disclosed in Japanese Patent Publication No. 1-175821 in the prior art. The patent document discloses a floor nozzle for a vacuum cleaner, which has an air turbine that rotates by an air intake airflow and a rotating floor brush connected to the air turbine via a belt reducer, and a bearing on the pulley side of the air turbine and a bearing on the pulley side of the rotating floor brush are integrated by a housing part, and the housing part is vibration-proof supported on the floor nozzle body.

[0163] However, in the invention related to the above-mentioned prior art, since the shaft length between the air turbine and the bearing is long, there are problems such as the shaft bending caused by the rotation of the air turbine and the low stability of the interval between the shaft of the air turbine and the shaft of the rotating floor brush.

[0164] Therefore, the purpose of this embodiment is to provide a suction port that can improve the stability of the distance between the driving machine and the rotating cleaning tool. In addition, as an example of such a suction port, the suction port 40 is illustrated.

[0165] (2-1) The suction member 40 of the present embodiment provided to solve the above-mentioned problem is characterized in that it comprises: a shell 42 having a suction port 43 capable of sucking in dust; a rotating cleaning member 46 rotatably arranged on the shell 42; a driving machine 210 having a rotating shaft and a driving machine body 210a on which the rotating shaft is arranged, and generating a driving force for the rotating cleaning member 46; a cleaning member driving mechanism 48, including an output side pulley 214 arranged on the rotating shaft, a driven side pulley 216 connected to the rotating cleaning member 46, and a power transmission member 212 hung on the output side pulley 214 and the driven side pulley 216, and transmitting the driving force from the driving machine 210 to the rotating cleaning member 46; and a retaining member 220, which supports the driving machine body 210a and rotatably supports the driven side pulley 216.

[0166] The suction tool 40 includes a holding member 220 that supports the driving machine body 210a of the driving machine 210 and rotatably supports the driven side pulley 216. With such a configuration, the suction tool 40 can improve the stability of the distance between the driving machine 210 and the rotating cleaning tool 46.

[0167] (2-2) The above-mentioned suction tool 40 is characterized in that it has a receiving portion 222d formed by cutting off the edge of the holding member 220, and supports the driving machine body 210a in the receiving portion 222d.

[0168] According to this structure, the driving machine 210 can be mounted on the holding member 220 in a state where the power transmission member 212 is hung on the driven side pulley 216 and the output side pulley 214. Considering the structure in which the power transmission member is hung on the driven side pulley and the output side pulley after the driving machine is arranged in the housing, there is a case where it is difficult to hang the power transmission member on the output side pulley and the driven side pulley due to the tension of the power transmission member. However, according to the above structure in this embodiment, such trouble of difficulty in hanging can be reduced.

[0169] (2-3) In the above-mentioned suction part 40, the shell 42 includes a lower shell 42a (first shell) located on the cleaning surface side and an upper shell 42b (second shell) installed on the lower shell 42a, and the driving machine body 210a is supported between the first supporting part of the retaining part 220 as the supporting part 222d and the second supporting part of the upper shell 42b (upper side retaining part 224).

[0170] With this configuration, the first receiving portion and the upper holding member 224 (second receiving portion) can firmly support the driver body 210a of the driver 210. Thus, the suction tool 40 can improve the stability of the distance between the driver 210 and the rotary cleaning tool 46.

[0171] (2-4) In the above-mentioned suction tool 40, the second receiving portion is an extension portion extending from the upper shell 42b toward the lower shell 42a side, or the upper side holding member 224 constituting the inner wall of the upper shell 42b.

[0172] According to this structure, by mounting the upper shell 42b to the lower shell 42a, the driver body 210a of the driver 210 can be firmly supported by the first receiving portion and the upper holding member 224 (second receiving portion). Therefore, according to the above structure, the mounting operation of the driver body 210a of the driver 210 can be further simplified, and the stability of the distance between the driver 210 and the rotating cleaning member 46 can be improved.

[0173] The present invention is not limited to the contents shown in the above-mentioned embodiments, and it is easy for those skilled in the art to understand that other embodiments can be obtained according to the inspiration and spirit thereof without departing from the scope of the claims. Hereinafter, the modified examples of the embodiments are described in detail with reference to the accompanying drawings. In addition, in the following description, the same symbols are marked on the same parts as those in the above-mentioned embodiments, and the detailed description is omitted.

[0174] 《First variant》

[0175] Here, as a conventionally known vacuum cleaner system, there is provided a system such as the vacuum cleaner system disclosed in Japanese Patent Gazette No. 2019-162232. The vacuum cleaner system includes a vacuum cleaner and a support device for supporting the vacuum cleaner. In addition, the vacuum cleaner provided in the vacuum cleaner system includes: a main body with a handle, a suction piece for sucking in garbage, and a tube connecting the main body and the suction piece, and the support device includes a support piece. The vacuum cleaner system is configured such that, when the vacuum cleaner is supported by the support device, the front side of the suction piece is arranged closer to the support piece than the rear side.

[0176] However, in a configuration in which a supporting device supports the main body of a vacuum cleaner as in the vacuum cleaner system of the above-mentioned conventional art, there is a problem in that the supporting device becomes large-sized.

[0177] The electric vacuum cleaner unit 300 of the first modified example provided to solve the above-mentioned problem is as follows. As a specific example, it may include, for example Figures 17 to 20 The structure shown.

[0178] (3-1) The electric vacuum cleaner unit 300 of the first variant is characterized in that it comprises: a vacuum cleaner body 10 having an electric blower 14, a suction piece 40 having a suction port 43 for sucking dust, a pipe portion 30 connecting the vacuum cleaner body 10 and the suction piece 40, and a vacuum cleaner support device 330, wherein the vacuum cleaner support device 330 has a loading portion 340 for loading the suction piece 40, and a support column portion 350 that supports the pipe portion 30 and engages with the pipe portion 30.

[0179] According to this configuration, the suction tool 40 is disposed on the mounting portion 340, and the pipe portion 30 is engaged with the support portion 350, thereby supporting the electric vacuum cleaner 1. Therefore, according to the above configuration, a large vacuum cleaner support device 330 is not required, and a compact electric vacuum cleaner unit 300 can be provided.

[0180] (3-2) In the above-mentioned electric vacuum cleaner unit 300, the tube portion 30 has a engaged portion 310 engaged with the support portion 350, and the support portion 350 has an engaging portion 352 engaged with the engaged portion 310. The engaged portion 310 has a hollow receiving portion 312, and the receiving portion 312 has a first opening portion 314 opened toward the suction piece 40 side. The engaging portion 352 has a first protrusion portion 354 inserted into the receiving portion 312 via the first opening portion 314.

[0181] According to this structure, the first protrusion 354 constituting the engaging portion 352 in the support portion 350 is inserted through the first opening portion 314 of the receiving portion 312 constituting the engaged portion 310 in the pipe portion 30 and engaged with the receiving portion 312, thereby supporting the pipe portion 30 on the vacuum cleaner supporting device 330.

[0182] (3-3) In the above-mentioned electric vacuum cleaner unit 300, the engaging portion 352 has a second protrusion portion 356 arranged at a position opposite to the first protrusion portion 354, and the supporting portion 312 is inserted between the first protrusion portion 354 and the second protrusion portion 356 when the engaging portion 352 is engaged with the engaged portion 310.

[0183] According to this configuration, the engaging portion 352 is inserted between the first protrusion 354 and the second protrusion 356 in a state where the engaging portion 352 is engaged with the engaged portion 310, so that the pipe portion 30 can be supported on the cleaner support device 330. Therefore, the electric vacuum cleaner unit 300 can support the pipe portion 30 on the cleaner support device 330 between the first protrusion 354 and the second protrusion 356 with high positioning accuracy.

[0184] (3-4) In the above-mentioned electric vacuum cleaner unit 300, the supporting portion 312 has a second opening portion 316 on the side opposite to the support portion 350, and the engaging portion 352 has a third protrusion portion 358 arranged in a manner cross-connecting with the first protrusion portion 354. The third protrusion portion 358 is inserted into the second opening portion 316 from the suction piece 40 side when the engaging portion 352 is engaged with the engaged portion 310, so as to support the edge of the second opening portion 316.

[0185] According to this configuration, the engaging portion 352 and the engaged portion 310 can be engaged with each other while the edge of the second opening 316 is supported by the third protrusion 358. Therefore, the electric vacuum cleaner unit 300 can support the pipe 30 on the cleaner support device 330 with high positioning accuracy within the opening width of the second opening 316.

[0186] [Specific example of the first modification]

[0187] Hereinafter, an electric vacuum cleaner unit 300 according to a first modification will be described in detail with reference to the drawings. The configuration of the electric vacuum cleaner unit 300 is substantially the same as that of the electric vacuum cleaner 1 according to the above embodiment, and therefore, the same configuration is denoted by the same reference numerals and detailed description thereof is omitted.

[0188] The electric vacuum cleaner unit 300 includes a cleaner support device 330 in addition to the cleaner body 10, the pipe 30, and the suction tool 40. Like the electric vacuum cleaner 1, the cleaner body 10 includes the electric blower 14. Also, like the electric vacuum cleaner 1, the suction tool 40 includes a suction port 43 for sucking dust.

[0189] As in the electric vacuum cleaner 1, the main part of the pipe 30 is formed by connecting the vacuum cleaner body 10 and the suction tool 40. The pipe 30 is different from the electric vacuum cleaner 1 in that it has an engaged portion 310 engaged with a support portion 350 provided on a vacuum cleaner support device 330 described in detail later.

[0190] like Fig. 20 As shown, the engaged portion 310 is a portion engaged with an engaging portion 352 provided on a vacuum cleaner support device 330 described in detail later. The engaged portion 310 may be provided integrally with the tube forming the tube portion 30, but in this modified example, a receiving portion 312 is provided on a tube protection cover 320 (a tube protection cover on the suction member 40 side of the tube portion 30) mounted on the tube forming the tube portion 30. The receiving portion 312 is a hollow portion formed on the outer peripheral surface of the tube portion 30 in a manner that bulges outward in the radial direction.

[0191] The receiving portion 312 has a first opening portion 314 that opens toward the suction piece 40. In addition, the receiving portion 312 has a second opening portion 316 that is formed in an open manner on the back side. Specifically, the second opening portion 316 is formed to open on a surface (contact surface 318) on a side opposite to the support portion 350 of the vacuum cleaner support device 330 when the vacuum cleaner support device 330 is set to be described in detail later.

[0192] like Fig.17 As shown, the cleaner support device 330 supports the cleaner in a state where the pipe portion 30 and the suction piece 40 are mounted on the cleaner body 10. Figures 17 to 19 As shown, the cleaner supporting device 330 includes a placing portion 340 and a support column 350 .

[0193] The placement portion 340 is a portion that serves as a base for placing the suction piece 40. The placement portion 340 has a stopper 342 on the front side. The stopper 342 is formed to protrude upward from the top surface side of the placement portion 340. In addition, the stopper 342 is formed to extend along the width direction of the placement portion 340. Therefore, the stopper 342 can position the suction piece 40 disposed on the top surface of the placement portion 340 so that it does not move to the front side beyond the stopper 342.

[0194] The support part 350 is a support-shaped part erected in the up-down direction on the back side (opposite side of the stopper 342) of the placement part 340. The support part 350 is a part that engages with the tube part 30 connected to the suction piece 40 disposed on the placement part 340 and supports the tube part 30. Specifically, the support part 350 can support the tube part 30 by engaging the engaged part 310 of the tube part 30 with the engaging part 352 disposed on the upper end side.

[0195] like Fig.19As shown, the engaging portion 352 has four protrusions including a first protrusion 354, a second protrusion 356, a third protrusion 358 and a fourth protrusion 359. The first protrusion 354 is a protrusion-shaped portion protruding from the lower side toward the upper side on the front side of the support portion 350. The first protrusion 354 is a portion inserted into the receiving portion 312 through the first opening 314 provided in the above-mentioned pipe portion 30. The second protrusion 356 is provided on the inner side of the space 360 ​​opened toward the front side and the top side at the upper end side of the support portion 350, and is opposed to the first protrusion 354 at a predetermined interval. The third protrusion 358 is a protrusion-shaped portion arranged in a manner intersecting with the first protrusion 354. The third protrusion 358 is arranged on the inner side of the space 360 ​​in the same manner as the second protrusion 356. In addition, the first protrusion 354 and the third protrusion 358 may be separated, but in the present embodiment, the third protrusion 358 is connected to the first protrusion 354 at the middle portion in the width direction of the first protrusion 354. Therefore, the first protrusion 354 and the third protrusion 358 are formed into a substantially "T" shape in a plan view. In addition, the fourth protrusion 359 is provided on the surface of the first protrusion 354 facing the space 360 ​​side in a manner protruding toward the space 360 ​​side. The fourth protrusion 359 is provided at a position opposite to the second protrusion 356.

[0196] The space 360 ​​is a portion where the second protrusion 356 and the third protrusion 358 are arranged. The edge of the upper end side of the space 360 ​​is provided with a chamfered portion 360a, for example, chamfered into a cone shape, so as to facilitate the introduction of the receiving portion 312 provided on the pipe portion 30. In addition, the opening width of the front side of the space 360 ​​is equal to or greater than the width of the receiving portion 312 provided on the pipe portion 30. In addition, the first protrusion 354 is formed to stand up from the bottom toward the upper side at a position slightly protruding toward the front side than the opening portion of the front side of the space 360. In addition, the width of the third protrusion 358 is equal to or less than the width of the second opening 316 formed on the abutting surface 318 of the receiving portion 312 in the pipe portion 30. Furthermore, the second protrusion 356 is provided on both sides of the third protrusion 358 in the width direction. Therefore, by aligning the receiving portion 312 of the pipe portion 30 with the insertion space 360, the contact surface 318 of the receiving portion 312 enters between the first protrusion 354 and the second protrusion 356, and the third protrusion 358 enters the second opening 316 provided on the contact surface 318. Thus, the engaged portion 310 provided on the pipe portion 30 side and the engaging portion 352 provided on the support portion 350 side are engaged.

[0197] In addition, in the above-mentioned modified example, an example is shown in which four protrusions including a first protrusion 354, a second protrusion 356, a third protrusion 358 and a fourth protrusion 359 are provided as the locking portion 352, but the present invention is not limited to this. For example, it may also be a locking portion that only has the first protrusion 354, and does not have any one or more of the other protrusions (the second protrusion 356, the third protrusion 358 and the fourth protrusion 359) other than the first protrusion 354.

[0198] Second variant

[0199] Here, the electric vacuum cleaner 1 of the above-mentioned embodiment may be configured to be able to notify the dust collection state by a notification method such as light emission. Thus, since cleaning can be performed based on the notification information, it is possible to achieve improved convenience for the user. Therefore, the electric vacuum cleaner 1 may be provided with a notification unit for notifying the dust collection state. In addition, in the above-mentioned electric vacuum cleaner 1, as an example of a configuration capable of notifying the dust collection state, the following method may be considered: the dust collecting part 20 is configured using a transparent, translucent or smoky-colored shell, and a light-emitting device for illuminating the dust collecting part 20 is provided, and the luminous color or luminous state of the dust collecting part 20 is changed according to the dust collection state. In the case of forming such a configuration, it is preferable to configure the dust collecting part 20 to emit light for good visibility.

[0200] The electric vacuum cleaner 1 of the second modified example provided to solve the above-mentioned problem is as follows. In addition, as a specific example, the electric vacuum cleaner 1 of this modified example can be Figure 21 to Figure 23 The composition shown.

[0201] (4-1) The electric vacuum cleaner 1 of the present invention comprises: a vacuum cleaner body 10 having an electric blower 14, a dust collecting part 20 that can be detached from the vacuum cleaner body 10, an air duct forming part 400 having an air duct connected to the dust collecting part 20, a dust detecting part 410 for detecting dust passing through the air duct 402, a light emitting part 420 controlled in a manner to emit light based on the detection of the dust detecting part 410, and a light guiding part 430 for guiding the light emitted from the light emitting part 420, wherein the light guided by the light guiding part 430 passes through the dust collecting part 20.

[0202] According to this configuration, the light emitted by the light emitting unit 420 according to the detection of the dust detecting unit 410 can be guided through the light guiding unit 430 and transmitted through the dust collecting unit 20. Thus, the dust collecting unit 20 can be illuminated with good visibility, and the dust collecting state can be appropriately notified.

[0203] (4-2) In the electric vacuum cleaner 1 of the present invention, the light emitting portion 420 is provided in the air duct forming portion 400 , and the light guiding portion 430 extends from the dust collecting portion 20 toward the air duct forming portion 400 .

[0204] According to this configuration, the dust collecting portion 20 can be more reliably illuminated with good visibility.

[0205] (4-3) In the electric vacuum cleaner 1 of the present invention, the light emitting portion 420 is disposed in the recess 404 provided on the air duct forming portion 400 , and at least an end portion of the light guiding portion 430 is inserted into the recess 404 .

[0206] According to this structure, the dust collecting part 20 can be more reliably illuminated with good visibility. In addition, preferably, if at least the end of the light guide 430 is locked in at least one of the vertical direction and the left and right direction in the recess 404, the dust collecting part 20 can be arranged with high positioning accuracy.

[0207] (4-4) In the electric vacuum cleaner 1 of the present invention, the dust collecting section 20 comprises: an outer container 52 having an inlet for air to flow in and an inner container 54 (centrifugal separation outer cylinder 102) for generating a swirling airflow between the outer container 52, and the light emitting section 420 is arranged at a position not opposite to the inner container 54 (centrifugal separation outer cylinder 102).

[0208] According to this configuration, it is possible to prevent the light emitted from the light emitting portion 420 from being blocked by the inner container 54, and the dust collecting portion 20 can be made to emit light with good visibility.

[0209] [Specific example of the second modification]

[0210] Hereinafter, a vacuum cleaner 1 according to a second modification will be described in detail with reference to the drawings. The configuration of the vacuum cleaner 1 according to this modification is substantially the same as that of the above embodiment, and therefore, the same configuration is denoted by the same reference numerals and detailed description is omitted.

[0211] The electric vacuum cleaner 1 includes a light emitting unit 420 and a light guide unit 430 in addition to the vacuum cleaner body 10 and the dust collecting unit 20 (dust collecting device). In addition, although the description is omitted in the above embodiment, the electric vacuum cleaner 1 includes an air duct forming unit 400. The vacuum cleaner body 10 is provided with an electric blower 14 in the same manner as the above electric vacuum cleaner 1. An exhaust port 10x (see FIG. 1 ) for exhausting the exhaust gas of the electric blower 14 is provided on the side of the vacuum cleaner body 10. Fig. 22 Specifically, the dust collecting unit 20 is disposed on the side close to the battery storage unit 10d in the front-rear direction of the vacuum cleaner body 10. In addition, the dust collecting unit 20 is detachable relative to the vacuum cleaner body 10 and has an outer container 52 and an inner container 54 (see Figure 4The outer container 52 is a container having an inlet for air to flow in. The inner container 54 (centrifugal separation outer cylinder 102) is a container arranged inside the outer container 52 and generating a swirling airflow between the inner container 54 and the outer container 52. Since these structures are the same as those described in the above embodiment, detailed descriptions are omitted.

[0212] The electric vacuum cleaner 1 includes an air duct forming part 400. The air duct forming part 400 includes an air duct forming cylinder 406 forming an air duct 402 connected to the dust collecting part 20. The air duct forming cylinder 406 is formed as a hollow air duct 402, and connects the part from the tube connecting part 22 connected to the tube part 30 to the dust collecting part side opening 403 connected to the first inlet 68 of the dust collecting part 20 in a manner that allows air to pass. The air duct forming cylinder 406 can adopt an appropriate structure as long as it can form the air duct 402. In this embodiment, as shown in FIG. Fig.23 As shown, the structure is that a cylindrical middle cylinder 408 is housed inside the air duct forming cylinder 406 composed of a semi-cylindrical front cover 406a and a semi-cylindrical rear cover 406b, and an air duct 402 is formed inside the middle cylinder 408. The air duct forming cylinder 406 has a dust detection unit 410 (see Fig.21 ) and light emitting portion 420.

[0213] The dust detection unit 410 is composed of a sensor for detecting dust contained in the air passing through the air duct 402. In the present embodiment, the dust detection unit 410 is arranged in the air duct constituting tube 406, but it is not limited to this. In addition to the air duct constituting tube 406, it can be arranged in the air duct constituting unit 400 that can include at least one of the tube 30 and the suction piece 40. In addition, the light emitting unit 420 can change the light emission amount according to the amount of dust detected by the dust detection unit 410, and can also change the light emission color according to the amount of dust detected by the dust detection unit 410. In the present embodiment, it is a red and green light emitting diode (LED). By carrying a light emitting diode that emits light of multiple colors and adjusting the brightness of each light emitting diode, multiple colors can be formed. The light emitting unit 420 is controlled in a manner that emits light according to the detection result of the dust detection unit 410. The light emitting unit 420 is arranged in a recess 404 provided on the air duct constituting tube 406.

[0214] Specifically, if Fig.23As shown, on the air duct forming tube 406 constituting a part of the air duct forming part 400, two recesses 404, 404 are provided at a predetermined interval in the circumferential direction of the air duct forming tube 406, and the two recesses 404, 404 are formed to extend in the up-down direction. In addition, at positions corresponding to the recesses 404, 404 in the middle tube 408 accommodated in the air duct forming tube 406, rib-shaped luminous body arrangement parts 408a, 408a extending in the up-down direction are provided. In the luminous body arrangement parts 408a, 408a, a plurality of LED light emitting elements 422 constituting the light emitting part 420 are arranged at predetermined intervals. In addition, in the assembled state of the air duct forming tube 406, the LED light emitting elements 422 (light emitting part 420) arranged in the luminous body arrangement parts 408a, 408a of the middle tube 408 are arranged inside the recesses 404, 404 provided on the air duct forming tube 406. In addition, the recessed portions 404, 404 and the light emitting body arrangement portions 408a, 408a are provided at positions not facing the inner container 54 (centrifugal separation outer cylinder 102).

[0215] like Fig.21 or Fig. 22 As shown in (a), the light guide portion 430 is provided on the outer peripheral surface of the outer container 52 constituting the dust collecting portion 20. The light guide portion 430 is provided at a position corresponding to the above-mentioned recessed portions 404, 404 when the dust collecting portion 20 is in the installed state. In the present embodiment, since two recessed portions 404, 404 are provided, two light guide portions 430 are also provided at positions corresponding to the recessed portions 404, 404. The light guide portion 430 is used to guide the light emitted from the light emitting portion 420 toward the dust collecting portion 20. The light guide portion 430 is formed to extend from the dust collecting portion 20 toward the air duct constituting cylinder 406 when the dust collecting portion 20 is in the installed state. In addition, when the dust collecting portion 20 is in the installed state, the light guide portion 430 is in a state where at least the front end portion is inserted into the recessed portion 404. As shown in FIG. Fig. 22 As shown in (a), by providing a diffusion part 440 composed of protrusions or grooves on the periphery of the dust collecting part 20, the light emitted from the light emitting part 420 can be diffused in the diffusion part 440. Here, the diffusion part 440 extending along the axial direction of the dust collecting part 20 is illustrated.

[0216] 《Third variant》

[0217] Here, it is known that there is an electric vacuum cleaner having a dust collecting device that can be detached from the vacuum cleaner body, as disclosed in Japanese Patent Publication No. 2014-8302. For example, the electric vacuum cleaner disclosed in Japanese Patent Publication No. 2014-8302 has a dust collection part that can be detached from the vacuum cleaner body and has a protrusion that protrudes toward the vacuum cleaner body and is inserted into a locking hole formed in the vacuum cleaner body. The electric vacuum cleaner uses the direction in which the protrusion protrudes when the dust collection part is installed to the vacuum cleaner body as the installation direction. In addition, the positional relationship between the dust collection part and the vacuum cleaner body during installation is set so that the dust collection part can be removed from the vacuum cleaner body when the extraction direction of the dust collection part from the vacuum cleaner body is greater than 90 degrees relative to the installation direction. In this way, various technologies are provided in a horizontal vacuum cleaner with a detachable dust collecting device, etc., regarding a method for fixing the dust collecting device to the vacuum cleaner body and a method for releasing the fixation of the dust collecting device relative to the vacuum cleaner body, and the dust collecting device is fixed to the vacuum cleaner body in a manner that ensures the airtightness of the vacuum cleaner body and the dust collecting device.

[0218] However, in many electric vacuum cleaners, such as the horizontal vacuum cleaner disclosed in Japanese Patent Laid-Open No. 2014-8302, the bottom of the dust collecting device is supported by the vacuum cleaner body as a whole. In the horizontal vacuum cleaners of the prior art, such a structure is adopted to prevent the vacuum cleaner body and the dust collecting device from being misaligned and to suppress the reduction of the airtightness between the vacuum cleaner body and the dust collecting device. On the other hand, in the upright electric vacuum cleaner with a detachable dust collecting device, the shape of the vacuum cleaner body is very different from that of the horizontal vacuum cleaner. Therefore, depending on the type or shape of the electric vacuum cleaner, even if the same fixing method as that of the horizontal vacuum cleaner disclosed in the above-mentioned patent document is adopted, there is a problem that the airtightness between the vacuum cleaner body and the dust collecting device may not be fully ensured.

[0219] The electric vacuum cleaner 1 of the third modified example provided in order to solve the above-mentioned problem is as follows. The electric vacuum cleaner 1 of this modified example is, for example, Figure 24 to Figure 28 The structure shown.

[0220] (5-1) The electric vacuum cleaner 1 of this modified example comprises: a vacuum cleaner body 10 having a suction port 18 for sucking dust by the action of an electric blower 14; a dust collecting section 20 having an inlet (a first inlet 68) for air to flow in from the suction port 18 and a dust collecting section outlet 170 connected to the air intake port of the electric blower 14 and capable of being detached from the vacuum cleaner body 10; and a locking structure 500 capable of being detached from the vacuum cleaner body 10 and the dust collecting section 20, wherein the dust collecting section 20 comprises a dust collecting container 50 and a protective cover 90. The container 50 has a bottom 58 and a side wall portion 59 uprightly arranged relative to the bottom 58. The protective cover portion 90 is arranged on the dust collecting container 50 and has the dust collecting portion discharge outlet 170. The locking structure 500 includes: a first locking structure 510 that can be locked and removed between the protective cover portion 90 and the vacuum cleaner body 10; a second locking structure 520 that can be locked and removed between the dust collecting container 50 and the vacuum cleaner body 10; and a third locking structure 530 that can be locked and removed between the edge of the dust collecting portion discharge outlet 170 in the protective cover portion 90 and the vacuum cleaner body 10.

[0221] The electric vacuum cleaner 1 of this modification example uses a locking structure 500 as a structural part that can be locked and detached between the vacuum cleaner body 10 and the dust collecting part 20, and adopts a locking structure including the above-mentioned first locking structure 510, the second locking structure 520 and the third locking structure 530. In addition to enabling the protective cover 90 and the vacuum cleaner body 10 to be locked and detached through the first locking structure 510, the electric vacuum cleaner 1 of this modification example also enables the dust collecting container 50 and the vacuum cleaner body 10 to be locked and detached through the second locking structure 520, and further enables the edge of the dust collecting part discharge port 170 of the protective cover 90 to be locked and detached from the vacuum cleaner body 10 through the third locking structure 530. In this way, the electric vacuum cleaner 1 of this modification example uses the first locking structure 510, the second locking structure 520 and the third locking structure 530 in combination to enable the dust collecting part 20 and the vacuum cleaner body 10 to be locked and detached, so that the airtightness of the vacuum cleaner body 10 and the dust collecting part 20 can be fully ensured.

[0222] (5-2) The electric vacuum cleaner 1 of this modified example has an airtight component 540 for maintaining airtightness between the vacuum cleaner body 10 and the protective cover portion 90, and the airtight component 540 has an abutment portion 542 abutting against an abutted portion 178 of the protective cover portion 90 that is located outside the dust collecting portion exhaust port 170, and the third locking structure 530 is arranged to avoid the abutment portion 542 and the abutted portion 178.

[0223] According to this configuration, the third locking structure 530 does not become an obstacle, and the contact portion 542 of the airtight member 540 can contact the contacted portion 178 of the protective cover 90. Therefore, the electric vacuum cleaner 1 of this modification can fully ensure airtightness between the cleaner body 10 and the protective cover 90 through the airtight member 540.

[0224] (5-3) In the electric vacuum cleaner 1 of the present invention, the first component 532 on the side of the vacuum cleaner body 10 in the third locking structure 530 has a hollow storage portion 534 with an opening 534a, and the opening 534a is open to the outside in a direction intersecting the opposing direction of the vacuum cleaner body 10 and the dust collecting portion discharge outlet 170 of the protective cover portion 90, and the second component 536 on the side of the dust collecting portion 20 in the third locking structure 530 has a protrusion 536a extending inward from the edge of the dust collecting portion discharge outlet 170 of the protective cover portion 90, and the second component 536 is locked to the first component 532 by storing the protrusion 536a in the storage portion 534 through the opening 534a.

[0225] According to this configuration, the dust collecting part 20 can be mounted on the cleaner body 10 with high positioning accuracy in both the circumferential direction and the axial direction by the third locking structure 530. Thus, the airtightness between the cleaner body 10 and the dust collecting part 20 can be further improved.

[0226] (5-4) The electric vacuum cleaner 1 of the present invention may also be constructed as follows: the first component 532 on the side of the vacuum cleaner body 10 in the third locking structure 530 includes an extension portion 534b and a locking portion 534c, wherein the extension portion 534b extends from the inside toward the dust collecting portion 20 relative to the airtight component 540, and the locking portion 534c is bent relative to the extension portion 534b in a manner of protruding outward in a direction intersecting the opposing direction of the vacuum cleaner body 10 and the dust collecting portion discharge outlet 170 of the protective cover portion 90, and the locking portion 534c is locked on the edge of the dust collecting portion discharge outlet 170 in the protective cover portion 90.

[0227] According to this configuration, the dust collecting part 20 can be mounted on the cleaner body 10 with high positioning accuracy by the locking structure formed by the locking part 534c forming the third locking structure 530 and the edge of the dust collecting part discharge port 170. Thus, the airtightness between the cleaner body 10 and the dust collecting part 20 can be further improved.

[0228] (5-5) The electric vacuum cleaner 1 of the present invention may include a blower cover 630 for housing the electric blower 14 , and the first member 532 and the blower cover 630 may be provided integrally.

[0229] According to this configuration, the number of components can be reduced, and the first member 532 can be reliably provided with respect to the cleaner body 10 to which the electric blower 14 is assembled.

[0230] (5-6) The electric vacuum cleaner 1 of the present invention may include a cover fixing member 640 for positioning the blower cover 630 in the vacuum cleaner body 10 , and the airtight member 540 may be fixed between the cover fixing member 640 and the blower cover 630 .

[0231] According to this configuration, the airtight member 540 can be mounted with high positioning accuracy on the cleaner body 10 side. Thus, the cleaner body 10 and the dust collecting part 20 can be reliably connected in an airtight manner through the airtight member 540.

[0232] [Specific example of the third modification]

[0233] Hereinafter, a vacuum cleaner 1 according to a third modification will be described in detail with reference to the drawings. The configuration of the vacuum cleaner 1 according to this modification is substantially the same as that of the above embodiment, and thus the same configurations are denoted by the same reference numerals and detailed descriptions thereof are omitted.

[0234] The electric vacuum cleaner 1 of this modified example is provided with a locking structure 500 in addition to the vacuum cleaner body 10 and the dust collecting part 20 (dust collecting device). Like the above-mentioned electric vacuum cleaner 1, the vacuum cleaner body 10 is provided with an electric blower 14. The vacuum cleaner body 10 has a suction port 18 for sucking dust by the action of the electric blower 14. In addition, the vacuum cleaner body 10 is provided with a blower cover 630 for accommodating the electric blower 14.

[0235] The dust collecting part 20 can be detached from the cleaner body 10. Fig.26 As shown in the figures, the dust collecting part 20 has a dust collecting container 50, a first inlet 68 and a dust collecting part outlet 170. In addition, the dust collecting container 50 has a bottom 58, a side wall 59 and a hood 90. The bottom 58 is a part constituting the bottom of the dust collecting container 50. In addition, the side wall 59 is a part constituting the peripheral surface of the dust collecting container 50. The side wall 59 is arranged upright relative to the bottom 58. The hood 90 is arranged on the top surface side of the dust collecting container 50. The hood 90 has a dust collecting part outlet 170 in a substantially central portion. In addition, the hood 90 has a contacted portion 178 with which the contacting portion 542 of the airtight component 540 contacts. The contacted portion 178 is formed in a planar, flat or concave shape at least in part on the outer peripheral side relative to the dust collecting part outlet 170. The dust collecting unit discharge port 170 is formed to communicate with the air intake port of the electric blower 14 when the dust collecting unit 20 is connected to the cleaner body 10. The dust collecting unit 20 is provided with a first inlet 68 through which the air from the suction port 18 can flow.

[0236] The connection portion between the vacuum cleaner body 10 and the dust collecting part 20 is provided with an airtight component 540 to ensure airtightness. The airtight component 540 may be provided on either or both of the vacuum cleaner body 10 and the dust collecting part 20. Fig.25 As shown, the airtight component 540 is disposed on the vacuum cleaner body 10. The airtight component 540 is fixed between the cover fixing component 640 and the blower cover 630, and the cover fixing component 640 is used to position the blower cover 630 in the vacuum cleaner body 10. Specifically, as Fig.25 As shown in (b), the airtight component 540 is bent into a cross-sectional shape that is roughly "S"-shaped. Thus, the fixed portion 541 in the shape of an inverted "コ" and the abutting portion 542 in the shape of a "コ" are continuous up and down. In addition, on the bottom side of the blower cover 630 (the air intake hood 630c side), a flange-shaped fixing portion 630x protruding radially outward is provided. The airtight component 540 is installed on the blower cover 630 by engaging the fixed portion 541 with the fixing portion 630x. In addition, when the airtight component 540 is installed on the blower cover 630, the abutting portion 542 is in a state of protruding from the vacuum cleaner body 10 side toward the dust collecting portion 20 side. The abutting portion 542 is provided at a position where it can abut against the abutted portion 178 of the protective cover portion 90 when the dust collecting portion 20 is installed.

[0237] The locking structure 500 is a structure that can be locked and released between the vacuum cleaner body 10 and the dust collecting part 20. Fig.24 As shown, the locking structure 500 includes a first locking structure 510 , a second locking structure 520 and a third locking structure 530 .

[0238] The first locking structure 510 can be locked and released between the shield portion 90 and the cleaner body 10. Figure 2 or Figure 4 The locking portion 20c and the recess 10b are combined to form the locking portion 20c and the recess 10b. Figure 2 or Figure 4 As shown, a locking portion 20c is provided on the top surface side of the dust collecting portion 20 and at a position which becomes the front side in the assembled state of the electric vacuum cleaner 1. The locking portion 20c protrudes upward. In addition, a recess 10b formed in a manner open to the bottom is provided on the front side of the vacuum cleaner body 10. The first locking structure 510 is formed by embedding the locking portion 20c into the recess 10b, and the dust collecting portion 20 is fixed to the vacuum cleaner body 10 side on the front side of the electric vacuum cleaner 1.

[0239] The second locking structure 520 can be locked and released between the dust collecting container 50 and the vacuum cleaner body 10. The second locking structure 520 and the first locking structure 510 are the same as those in the above embodiment. Figure 2 or Figure 4 The locking structure described above is composed of the concave portion 20b and the convex portion 10a. Figure 2 or Figure 4 As shown in FIG. 5 , a concave portion 20b is provided on the bottom 58 of the dust collecting portion 20. Figure 2 As shown, in the vacuum cleaner body 10, a convex portion 10a is provided on the portion contacted by the back side of the dust collecting part 20. The second locking structure 520 can lock the dust collecting container 50 on the vacuum cleaner body 10 by engaging the concave portion 20b provided on the dust collecting container 50 side with the convex portion 10a provided on the vacuum cleaner body 10 side.

[0240] In this modified example, as a locking structure 500, in addition to the first locking structure 510 and the second locking structure 520, a third locking structure 530 is also provided. The third locking structure 530 is arranged on the top surface side of the dust collecting part 20 between the edge of the dust collecting part discharge port 170 of the shield part 90 and the vacuum cleaner body 10 and can be snapped off. The third locking structure 530 is arranged to avoid the abutting part 542 and the abutted part 178 so as not to hinder the formation of an airtight structure by the airtight component 540. The third locking structure 530 is composed of a combination of a first component 532 and a second component 536.

[0241] like Fig.25 As shown, the first component 532 is a component arranged on the side of the vacuum cleaner body 10. The first component 532 is integrally arranged with the blower cover 630 at a position closer to the center side than the airtight component 540. In addition, the first component 532 has a storage portion 534. The storage portion 534 is hollow with an opening 534a. In addition, the storage portion 534 has an opening 534a. The storage portion 534 is open to the outside direction (in the radial direction of the dust collecting portion 20 in this embodiment) that intersects the opposing direction (in the up and down direction in the example shown) of the vacuum cleaner body 10 and the dust collecting portion discharge port 170 of the hood portion 90 by having the opening 534a.

[0242] like Fig.26 As shown, the second component 536 is a component provided on the dust collecting part 20 side. The second component 536 has a protrusion 536a. The protrusion 536a is formed in a manner extending inward from the edge of the dust collecting part discharge port 170 of the shield part 90. Specifically, the protrusion 536a extends further toward the center side than the airtight component 540.

[0243] In the electric vacuum cleaner 1 of this modified example, when the dust collecting part 20 is mounted on the vacuum cleaner body 10, first, the convex part 10a provided on the side of the vacuum cleaner body 10 is inserted into the concave part 20b provided on the side of the dust collecting part 20, thereby forming a second locking structure 520. Then, the dust collecting part 20 is rotated with the convex part 10a as a fulcrum so that the first inlet 68 is close to the pipe connecting part 22. Thus, the locking part 20c provided on the side of the dust collecting part 20 is embedded in the concave part 10b provided on the side of the vacuum cleaner body 10, thereby forming a first locking structure 510. In addition, by rotating the dust collecting part 20 with the convex part 10a as a fulcrum, the protrusion 536a of the second component 536 is received in the receiving part 534 via the opening 534a of the first component 532, and the second component 536 is locked in the first component 532, thereby forming a third locking structure 530. Regarding the locking of the first component 532 and the second component 536, specifically, the circumferential ends of the protrusion 536a are restricted within the storage portion 534, thereby positioning the dust collecting portion 20 relative to the vacuum cleaner body 10 in the circumferential direction. In addition, the upper surface and the lower surface of the protrusion 536a are restricted within the storage portion 534, thereby positioning the dust collecting portion 20 relative to the vacuum cleaner body 10 in the axial direction.

[0244] Here, if Fig.25 As shown in (b), the third locking structure 530 is arranged to avoid the abutting portion 542 and the abutted portion 178 so as not to hinder the formation of an airtight structure by the airtight component 540. Specifically, the airtight component 540 forms an airtight structure by making the abutting portion 542 abut against the abutted portion 178. In contrast, the third locking structure 530 is formed by engaging the second component 536 (protrusion 536a) provided on the dust collecting portion 20 side with the first component 532 (storage portion 534) provided on the vacuum cleaner body 10 side to protrude downward from the blower cover 630. The first component 532 (storage portion 534) and the second component 536 (protrusion 536a) are engaged at positions that deviate from the abutting portion 542 and the abutted portion 178 toward the radial inner side (center side), respectively. Therefore, the third locking structure 530 is formed in a manner that does not hinder the formation of an airtight structure by the airtight component 540. Thus, the electric vacuum cleaner 1 is in a state where the dust collecting part 20 is airtightly attached to the vacuum cleaner body 10 by the locking structure 500 including the first locking structure 510 , the second locking structure 520 , and the third locking structure 530 .

[0245] In addition, if Fig. 27As shown, in this modification, a convex portion 570 is provided in the portion (back side) of the dust collecting portion 20 that contacts the vacuum cleaner body 10. In addition, in the vacuum cleaner body 10, a concave portion 572 is provided at a position corresponding to the convex portion 570 provided in the dust collecting portion 20. When the electric vacuum cleaner 1 installs the dust collecting portion 20 to the vacuum cleaner body 10, the convex portion 570 is embedded in the concave portion 572. Therefore, the electric vacuum cleaner 1 can also install the dust collecting portion 20 on the vacuum cleaner body 10 with high positioning accuracy through the interlocking structure composed of the convex portion 570 and the concave portion 572.

[0246] The third modified example is merely an example of the electric vacuum cleaner 1 of the present invention, and a part or all of the structure may be changed without departing from the scope of the present invention. For example, instead of forming the third locking structure 530 as the above structure, Fig.28 As shown, the first component 532a on the side of the vacuum cleaner body 10 is provided with an extension portion 534b and a locking portion 534c, the extension portion 534b extends from the inside toward the dust collecting portion 20 compared to the airtight component 540 and the abutted portion 178, and the locking portion 534c is bent relative to the extension portion 534b in a manner of protruding toward the outside in a direction intersecting the opposing direction of the vacuum cleaner body 10 and the dust collecting portion discharge port 170 of the shield portion 90, and the locking portion 534c is locked to the edge of the dust collecting portion discharge port 170 in the shield portion 90, thereby forming the third locking structure 530. As the structure of the edge of the dust collecting portion discharge port 170 in the shield portion 90 locked by the locking portion 534c, even the storage portion with an inner opening can be realized. In addition, it can also be a structure of a recessed portion provided on the lower surface of the edge of the dust collecting portion discharge port 170 of the shield portion 90 where the locking portion 534c is locked.

[0247] 《Other Variations》

[0248] The present invention is not limited to the contents shown as the above-mentioned embodiment and modified examples, and other modified examples can be adopted based on the teaching and spirit thereof without departing from the scope of the claims.

[0249] <<Modification of the filter support portion 80>>

[0250] In the above embodiment, the cover 106 is provided on the top surface side of the dust collecting part 20 to close the centrifugal separation part 100, and the filter support part 80 is supported by the central support rib 140 provided in the substantially central part of the cover 106, but the present invention is not limited to this. Fig.29 As shown, it is also possible not to provide a component corresponding to the central support rib 140. In such a case, for example, Fig.29As shown, a support rib 600 for supporting the filter support portion 80 can be provided. The position where the support rib 600 is provided or the number and shape of the support rib 600 can be appropriately changed. The support rib 600 can be formed integrally with the cover portion 106 or the filter support portion 80, or can be formed separately from the cover portion 106 and the filter support portion 80 as different components. In the example shown in the figure, the support rib 600 is formed integrally with the filter support portion 80. In addition, in the example shown in the figure, the support rib 600 has a rib foot portion 600a and a rib fixing portion 600b, the rib foot portion 600a is formed to reach the cover portion 106 from the circumferential connecting portion 160, and the rib fixing portion 600b is bent relative to the rib foot portion 600a. In addition, the support rib 600 is fixed by mounting the rib fixing portion 600b on the cover portion 106 using a fixing member 602 such as a screw, but can also be integrated with the cover portion 106 by welding. Thus, the filter support portion 80 can be reliably supported.

[0251] <<Modification of the Configuration of the Electric Blower 14>>

[0252] Although not specifically mentioned in the above embodiments, Fig.30 or Fig.31 As shown, the electric blower 14 may also have a fan motor 632 built into the inside of the blower cover 630. In addition, as shown in the example, when the fan motor 632 has a fan foot 634 protruding toward the radial outside, a receiving portion 636 for receiving the fan foot 634 may be provided on the blower cover 630, and an elastic member 638 may be interposed between the receiving portion 636 and the fan foot 634. In addition, the blower cover 630 may be composed of a first cover 630a and a second cover 630b, and the first cover 630a and the second cover 630b are combined by a snap-fit ​​structure to form the receiving portion 636. In the case of such a configuration, the fan motor 632 can be mounted relative to the blower cover 630 by clamping the fan foot 634 and the elastic member 638 using the first cover 630a and the second cover 630b, so that the workability during assembly is good.

[0253] The electric blower 14 can be mounted on the cleaner body 10 by an appropriate configuration, but for example Fig.30 or Fig.31 As shown, the cover fixing member 640 can be used for installation. Fig.30 or Fig.31In the example of the embodiment, the blower cover 630 of the electric blower 14 has a cover protrusion 642 protruding radially outward at the lower end side. On the other hand, the cover fixing member 640 is a member that is annular and has an inner diameter larger than the outer diameter of the blower cover 630. In addition, the cover fixing member 640 has a fitting portion 644 for fitting the cover protrusion 642 of the blower cover 630. The electric blower 14 integrates the blower cover 630 with the cover fixing member 640 by fitting the cover protrusion 642 with the fitting portion 644. In the example of the figure, the electric blower 14 fixes the cover fixing member 640 to the vacuum cleaner body 10 by using a fixing member such as a screw. In the case of such a configuration, the electric blower 14 can be installed on the vacuum cleaner body 10. In addition, in the example of the figure, the hole for forming the recess 10b forming the above-mentioned first locking structure 510 is provided on the cover fixing member 640. According to such a configuration, the cover fixing member 640 can be utilized for the assembly of the electric blower 14 to the cleaner body 10 and the formation of the recessed portion 10 b, so that the number of components can be reduced.

[0254] 《Variation example with mop box and mop》

[0255] For example, Figure 32 to Figure 34 As shown, the electric vacuum cleaner 1 may include a box 650 capable of storing other cleaning tools such as a mop 660 and a structure for holding the mop 660. When such a box 650 is provided, the box 650 may be formed into a structure that can be appropriately detached, or the configuration of the box 650 may be optimized so as not to hinder the use of the electric vacuum cleaner 1. The following describes a case in which the box 650 is provided as a modified example of the electric vacuum cleaner 1.

[0256] exist Fig.32 In the example shown, a box 650 is mounted on the tube portion 30 from the lower end of the vacuum cleaner body 10 on the back side of the electric vacuum cleaner 1. The box 650 is a cylindrical object having a storage space 650a that is open on the top side and closed on the bottom side. The box 650 can store a long cleaning tool such as a mop 660 by inserting it from the opening on the top side.

[0257] The box 650 can be mounted on the tube 30 by a clamp 652 provided on the lower end. The clamp 652 can be formed into an appropriate shape. In the example shown in the figure, since the tube 30 is substantially cylindrical, the clamp 652 is formed into a substantially "C" shape that can be externally fitted on the tube 30. Fig.34As shown, a rib 654 protruding outward is provided on the surface of the box 650 that contacts the tube 30. In the example shown in the figure, a first engaging portion 30a that can engage with the rib 654 is provided at a position of the tube 30 corresponding to the rib 654. The box 650 is held in a state where the movement of the tube 30 in the axial direction is restricted by the engaging structure formed by the rib 654 and the first engaging portion 30a.

[0258] The box 650 has a second engaging portion 656 at the upper end side. The second engaging portion 656 is a portion formed in a stepped shape at the upper end side of the box 650. On the other hand, on the back side of the vacuum cleaner body 10, a third engaging portion 10c is provided at a position corresponding to the second engaging portion 656, and the third engaging portion 10c has a hook-shaped cross-sectional shape, and the second engaging portion 656 can be inserted into the third engaging portion 10c from below.

[0259] exist Figure 32 to Figure 34 In the electric vacuum cleaner 1 shown, when the box 650 is installed, after the second engaging portion 656 formed on the upper end side is inserted from below and engaged with the third engaging portion 10c, the clamp 652 provided on the lower end side is engaged with the pipe part 30. As a result, the box 650 is fixed on the upper end side and the lower end side. In addition, when the box 650 is installed in this way, the rib 654 provided on the box 650 is engaged with the first engaging portion 30a provided on the pipe part 30. As a result, the movement of the box 650 in the axial direction of the pipe part 30 is restricted. In addition, the box 650 can be disassembled in the reverse order of the installation.

[0260] In addition, Fig.32 In the example shown, a handle holding portion 10f is provided on the vacuum cleaner body 10, and the handle holding portion 10f is used to hold the handle 662 of the mop 660 when the mop 660 is stored in the box 650. In the example shown in the figure, a battery storage portion 10d provided on the rear side of the gripping portion 16 and the upper end side of the vacuum cleaner body 10 is provided with a recess 10e into which the upper end of the handle 662 of the mop 660 can be embedded. In addition, a handle holding portion 10f for holding the handle 662 is provided on the recess 10e. In the example shown in the figure, a substantially "C"-shaped clamp is used as the handle holding portion 10f. The battery storage portion 10d can also be detachable relative to the vacuum cleaner body 10, but in the present embodiment, it is integrated with the vacuum cleaner body 10 and cannot be detachable.

[0261] like Fig.32 As shown in FIG. 1 , the electric blower 14 and the dust collecting part 20 of the electric vacuum cleaner 1 are arranged in a vertical arrangement, and a battery storage part 10d is provided on the upper side of the pipe part 30, so that the width of the vacuum cleaner body 10 in the front-to-back direction becomes compact. Fig.32As shown, even if the box 650 and the mop 660 are provided on the back surface of the cleaner body 10, the electric vacuum cleaner 1 will not be enlarged.

[0262] In addition, if Fig.32 As shown in the figures, the electric vacuum cleaner 1 has a protrusion 10g protruding toward the back side at a position in the battery storage portion 10d that is separated upward from the handle holding portion 10f. The protrusion 10g is a portion that functions as an anti-slip member when the electric vacuum cleaner 1 is wall-mounted. The protrusion 10g is formed to protrude further toward the back side than the mop 660 held by the handle holding portion 10f. Therefore, even if the electric vacuum cleaner 1 is provided with a mop 660 on the back side of the vacuum cleaner body 10, the mop 660 will not become an obstacle when the vacuum cleaner 1 is configured by wall-mounting or the like.

[0263] Fig.32 The mop 660 used in the example shown can be any handheld mop, and the shape or structure can be any, for example, Fig.35 Specifically, the mop 660 includes a handle 662 and a cleaning portion 666 that rotates relative to the handle 662 with respect to the rotating portion 664. In the illustrated example, the dust collecting member formed of fiber or nonwoven fabric attached to the cleaning portion 666 is omitted.

[0264] like Fig.36 As shown, the handle 662 is a telescopic handle composed of a plurality of (three in the example) handle portions 670, 672, and 674. Specifically, the handle portion 670 (hereinafter also referred to as the "first handle portion 670") is a hollow cylinder having a closed front end and an opening on the base end. The first handle portion 670 has a first hole portion 670a on the front end side (closed side) and a second hole portion 670b on the base end side (open side). In addition, the handle portion 672 (hereinafter also referred to as the "second handle portion 672") is composed of a hollow cylinder. The second handle portion 672 has a third hole portion 672a and a first button 672c on the front end side and a fourth hole portion 672b on the base end side. The handle portion 674 (hereinafter also referred to as the "third handle portion 674") is composed of a hollow cylinder. The third handle portion 674 has a fifth hole portion 674a and a second button 674c on the front end side. The handle 662 is connected to the first handle part 670 in a manner that the front end side of the second handle part 672 is inserted from the base end side of the first handle part 670 so that the second handle part 672 can be extended and retracted. In addition, the handle 662 is connected to the second handle part 672 in a manner that the front end side of the third handle part 674 is inserted from the base end side of the second handle part 672 so that the third handle part 674 can be extended and retracted.

[0265] In addition, the first button 672c and the second button 674c are always urged to protrude from the outer peripheral surfaces of the second handle portion 672 and the third handle portion 674, respectively, but can be retracted by being pressed.

[0266] The handle 662 is formed by connecting the handle parts 670, 672, and 674 as described above. Therefore, when the first handle part 670 and the second handle part 672 are moved in a direction of separation in the axial direction, the first button 672c of the second handle part 672 is engaged with the second hole part 670b of the first handle part 670, and the first handle part 670 and the second handle part 672 are locked in an extended state. In addition, when the second handle part 672 and the third handle part 674 are moved in a direction of separation in the axial direction, the second button 674c of the third handle part 674 is engaged with the fourth hole part 672b of the second handle part 672, and the second handle part 672 and the third handle part 674 are locked in an extended state. On the contrary, when the first handle portion 670 and the second handle portion 672 are extended, by pressing the first button 672c exposed from the second hole portion 670b and moving the first handle portion 670 and the second handle portion 672 in a direction close to each other in the axial direction, the first handle portion 670 and the second handle portion 672 can be retracted. When the first handle portion 670 and the second handle portion 672 are retracted, the first button 672c is engaged with the first hole portion 670a.

[0267] Similarly, when the second handle 672 and the third handle 674 are extended, the second button 674c exposed from the fourth hole 672b is pressed while the second handle 672 and the third handle 674 are moved toward the direction of approaching each other in the axial direction, so that the second handle 672 and the third handle 674 can be retracted. When the second handle 672 and the third handle 674 are retracted, the second button 674c is engaged with the third hole 672a.

[0268] In addition, if Fig.37As shown, the rotating part 664 uses the first locking part 686 and the second locking part 688 to rotatably connect the first outer connecting part 680 and the second outer connecting part 682 provided at the end of the handle 662 with the inner connecting part 684 provided at the end of the cleaning part 666. The first outer connecting part 680, the second outer connecting part 682 and the inner connecting part 684 are respectively formed to have a substantially circular shape when viewed from the front. The first outer connecting part 680 is an annular shape having a through hole 680a in the substantially central part. The first outer connecting part 680 is provided with a spring receiving part 680b for receiving the spring 687 on the opposite side to the second outer connecting part 682. In addition, the second outer connecting part 682 is provided at a position opposite to the first outer connecting part 680 at a predetermined interval. The second outer connecting portion 682 has a through hole 682a at the center and a plurality of grooves 682b at predetermined intervals along the circumferential direction on the outer peripheral side thereof. The inner connecting portion 684 has a through hole 684a at the center and a plurality of grooves 684b at predetermined intervals along the circumferential direction on the outer peripheral side thereof.

[0269] The first locking portion 686 includes a first flange portion 686a and a claw portion 686b protruding from one side of the first flange portion 686a. In addition, the second locking portion 688 includes a second flange portion 688a, a barrel portion 688b, a protrusion 688c, and a hole portion 688d. The barrel portion 688b is a cylindrical portion protruding from one side of the second flange portion 688a. In addition, a plurality of protrusions 688c are provided on the periphery of the barrel portion 688b, and are formed in a manner of protruding toward the outside of the barrel portion 688b. The hole portion 688d is a hole formed on the periphery of the barrel portion 688b in a manner of connecting the inside and outside of the barrel portion 688b.

[0270] The rotating part 664 is assembled by inserting the inner connecting part 684 between the first outer connecting part 680 and the second outer connecting part 682, connecting the through holes 680a, 684a, and 682a, inserting the claw 686b of the first locking part 686 from the first outer connecting part 680 side, inserting the cylinder 688b from the second outer connecting part 682 side, and engaging the front end of the claw 686b with the hole 688d provided in the cylinder 688b. When the rotating part 664 is assembled, the spring 687 is received in the spring receiving part 680b of the first outer connecting part 680 in a compressed state. When the first flange part 686a is not pressed, the protrusion 688c of the second locking part 688 of the rotating part 664 engages with the groove 684b of the inner connecting part 684 and the groove 682b of the second outer connecting part 682. As a result, the rotating part 664 is locked, and the handle 662 and the cleaning part 666 are in a state where they cannot rotate. On the other hand, when the first flange part 686a is pressed against the force of the spring 687, the protrusion 688c of the second locking part 688 of the rotating part 664 is disengaged from the groove 684b of the inner connecting part 684 in a state where it is engaged with the groove 682b of the second outer connecting part 682. As a result, the locking of the rotating part 664 is released, and the handle 662 and the cleaning part 666 are in a state where they can rotate. In addition, the rotating part 664 returns to the locked state when the pressing of the first flange part 686a is released.

[0271] <<Modification example of the tube portion 30>>

[0272] In the electric vacuum cleaner 1, the tube 30 may be any cylindrical body through which dust can pass, for example, Fig.38 Specifically, Fig.38 The internal space of the tube portion 30 is divided into a wiring storage portion 702 and a dust flow channel 704 by a partition wall 700. The partition wall 700, the wiring storage portion 702 and the dust flow channel 704 are made of metal or resin. The wiring storage portion 702 stores the wiring 710, and the wiring 710 connects the first terminal pin 706 and the second terminal pin 708. The first terminal pin 706 is exposed to the outside in a resin pipe shield on one end side of the tube portion 30, and the second terminal pin 708 is exposed to the outside in a resin pipe shield on the other end side of the tube portion 30. The wiring storage portion 702 and the dust flow channel 704 in the two pipe shields are made of resin. The first terminal pin 706 and the second terminal pin 708 are electrically connected to the vacuum cleaner body 10 and the suction piece 40, respectively. According to such a configuration, it is possible to suppress the wiring 710 connecting the first terminal pin 706 and the second terminal pin 708 from being exposed to the air containing dust passing through the tube portion 30 or from being exposed to the outside.

[0273] 《Variation of vacuum cleaner support device 330》

[0274] In the case where the electric vacuum cleaner unit 300 of the first modified example is provided with, for example, a vacuum cleaner support device 330 for supporting the electric vacuum cleaner 1, Fig.39 As shown, a configuration unit 720 for configuring various accessories may be provided. Fig.39 In the example, in addition to the placement portion 340 for placing the electric vacuum cleaner 1, a placement portion 720 for placing accessories is also provided. The placement portion 720 is arranged on the rear side of the placement portion 340 (pillar portion 350), for example, a protrusion 724 that can be inserted into the opening portion of the joint of the accessory 722 constituting the nozzle system can be provided, or an insertion portion 726 that can be inserted into and accommodate the portion of the suction piece 40 on one side in the width direction (length direction) can be provided. In addition, the placement portion 720 can be provided with a storage portion 728 for storing disposable consumables, for example. In the storage portion 728, there is also a structure for positioning using the placement portion 720, for example, there is a recessed portion on the bottom surface for the protrusion 724 to be embedded. In addition, the storage portion 728 of this embodiment is used to store the filter 70, and can be taken in and out from the cover portion that can be opened and closed on the top surface. However, it is not limited to this, and in the case of supporting a paper bag type vacuum cleaner using the vacuum cleaner support device 300, it can be used as a storage paper bag.

[0275] Modification of the main body case and battery storage section

[0276] As described above, the electric blower 14 used in the electric vacuum cleaner 1 is accommodated in the main body shell 12 of the vacuum cleaner main body 10, but the main body shell 12 may be, for example, Fig.40 As shown, openings 630d are provided on the peripheral surface (side surface) to achieve lightweight. In addition, the opening 630d can be provided in a honeycomb shape as shown in the example, or a plurality of holes formed in a circular, rectangular, polygonal or other shapes can be provided. In addition, on the main body shell 12, an exhaust opening for exhausting exhaust gas from the electric blower 14 is formed between the battery storage portion 10d and the honeycomb-shaped opening portion 630d, and the main body cover is provided on the main body shell 12 in a manner that covers the exhaust opening and the opening portion 630d. Moreover, the main body cover is configured so that the exhaust port 10x is opposite to the exhaust opening of the main body shell 12, and is designed so that the exhaust port 10x is smaller than the exhaust opening.

[0277] In addition, the electric vacuum cleaner 1 may be provided with a connecting hole 10y between the main body shell 12 where the electric blower 14 is arranged and the battery storage section 10d, and an exhaust hole 10z may be provided on the battery storage section 10d. Thus, the exhaust gas of the electric blower 14 can be discharged from the exhaust hole 10z through the connecting hole 10y, so that the battery 17a in the battery storage section 10d can be cooled. Fig.40As shown by the dotted line, a circuit substrate 750 (control unit) for controlling the operation of the vacuum cleaner is arranged on either the main body shell 12 or the battery storage section 10d. Thus, the space located in the main body shell 12 or the battery storage section 10d can be effectively utilized to arrange the circuit substrate 750, and the circuit substrate 750 can be cooled. In addition, when the connecting hole 10y and the exhaust hole 10z are provided, the exhaust opening of the main body shell 12 and the exhaust port 10x of the main body cover can also be omitted. Thus, the flow of air in the battery storage section 10d can be facilitated.

[0278] 《Modification of the dust collecting section》

[0279] like Fig.41 As shown, similarly to the fourth sealing member 125, the fourth sealing member 125A in the modified example uses an annular sealing member to seal between the inner wall of the dust collecting container 50 (outer container 52) and the upper wall 120 of the centrifugal separation inner cylinder 104 constituting the centrifugal separation unit 100. Moreover, the fourth sealing member 125A is arranged between the upper wall 120 of the L-shaped portion whose end extends downward, the outer container 52, and the centrifugal separation outer cylinder 102A. Along with the change in the shape of the centrifugal separation outer cylinder 102 to the centrifugal separation outer cylinder 102A having flanges 102a and 102b protruding in the radial direction, the fourth sealing member 125 is changed to the fourth sealing member 125A. Specifically, the S-shaped fourth sealing member 125 is changed to the L-shaped fourth sealing member 125A. In addition, the flange 102b is supported by the lower step portion of the outer container 52.

[0280] In the fourth sealing part 125A, the vertical part 136 erected on the outer peripheral side of the cover plate part 130 constituting the cover part 106 protrudes downward from the upper wall part 120 and contacts the fourth sealing part 125A. In addition, the fourth sealing part 125A is supported by the upper step portion formed in the outer container 52 and the flange part 102a of the centrifugal separation outer cylinder 102A. The fourth sealing part 125A is formed into such a structure to ensure the airtightness between the outer container 52 and the vertical part 136, and the airtightness between the outer container 52 and the flange part 102a.

[0281] The present invention is not limited to the contents represented by the above-mentioned embodiments, modifications, etc., and other embodiments can exist according to the teachings and spirits without departing from the scope of the claims. The constituent elements of the above-mentioned embodiments can also be arbitrarily selected and combined. In addition, any constituent element of the embodiment can be arbitrarily combined with any constituent element recorded in the technical solution for solving the invention or any constituent element that concretizes any constituent element recorded in the technical solution for solving the invention. In this regard, it is intended to obtain patent rights in the correction or divisional application of this application, etc.

[0282] (Industrial Applicability)

[0283] The present invention can be suitably used in all electric vacuum cleaners.

Claims

1. An electric vacuum cleaner unit, characterized in that: have: A vacuum cleaner body having an electric blower; A suction member having a suction port for sucking dust; a pipe portion connecting the vacuum cleaner body and a joint portion of the suction member; and Vacuum cleaner support device, The vacuum cleaner supporting device comprises: a placing portion for placing the suction piece; and a support portion, which supports the tube portion and engages with the tube portion, The support part is engaged with the pipe part at a position of the other end of the pipe part closer to the suction tool side than the one end of the vacuum cleaner body side. In a state where the tube portion is engaged with the support portion, an upper end of the support portion erected with respect to the mounting portion is located closer to the other end side than to the one end side of the tube portion.

2. The electric vacuum cleaner unit according to claim 1, characterized in that The tube portion has an engaged portion for the support portion to engage with. The support portion includes an engaging portion engaged with the engaged portion, The engaged portion is disposed on the other end side of the tube portion.

3. The electric vacuum cleaner unit according to claim 1 or 2, characterized in that The electric vacuum cleaner unit includes a dust collecting portion that is detachable from the vacuum cleaner body and collects dust sucked by the driving of the electric blower. The cleaner body has a tube connection portion that can be connected to the tube portion or the suction piece and is along the dust collecting portion.

4. The electric vacuum cleaner unit according to claim 1 or 2, characterized in that The vacuum cleaner body includes a main body shell, a battery unit, and a grip, the main body shell has the electric blower, the battery unit includes a battery located at the rear side of the electric blower, One end of the grip is connected to the battery unit, and the grip extends from the one end to be away from the battery unit and is connected to the main body casing at a position further forward than the electric blower.

5. The electric vacuum cleaner unit according to claim 2, characterized in that The engaged portion has a hollow receiving portion, and the receiving portion has a first opening portion opened toward the suction tool side. The engaging portion includes a first protrusion, and the first protrusion is inserted into the receiving portion through the first opening.

6. The electric vacuum cleaner unit according to claim 2 or 5, characterized in that The support column has the engaging portion at an upper end side.

7. An electric vacuum cleaner unit according to claim 1, 2 or 5, characterized in that The support portion has a chamfered portion whose upper end is chamfered into a tapered shape.

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