JP2021106861A - Vacuum cleaner - Google Patents

Abstract

To provide a vacuum cleaner including a dust collection device capable of effectively suppressing deterioration of suction capacity.SOLUTION: A vacuum cleaner 1 includes: a cleaner body 10 having a motor-driven blower 14; and a dust collection part 20 detachably provided at the cleaner body 10, and for collecting the dust sucked by the driving of the motor-driven blower 14. The dust collection part 20 includes: a centrifugal separation part 100 for separating the dust; a filter 70 provided further on the downstream side than the centrifugal separation part 100, and for collecting the dust; and a filter support part 80 for supporting the filter 70 from the upstream side in a state of being separated from an exhaust port of the centrifugal separation part 100.SELECTED DRAWING: Figure 2

Description

The present invention relates to a vacuum cleaner.

Conventionally, a vacuum cleaner provided with a dust collector has been provided, such as the vacuum cleaner disclosed in Patent Document 1 below. The electric vacuum cleaner disclosed in Patent Document 1 incorporates a cyclone dust collector having an upstream cyclone portion and a downstream cyclone portion, arranges the cyclone dust collector on the upstream side of the electric blower, and disposes the filter on the cyclone collection. It is said to be placed between the dust collector and the electric blower.

Japanese Unexamined Patent Publication No. 2014-76143

Here, when the filter is arranged between the cyclone dust collector and the electric blower as in the vacuum cleaner of Patent Document 1, even if dust that passes through the cyclone dust collector is generated, it is captured by the filter. be able to. On the other hand, if the filter blocks the outlet for allowing air to flow out from the downstream cyclone portion, there is a concern that pressure loss will occur and the suction capacity will decrease.

Therefore, an object of the present invention is to provide an electric vacuum cleaner provided with a dust collector capable of effectively suppressing a decrease in suction capacity.

The electric vacuum cleaner according to the embodiment of the present invention provided to solve the above-mentioned problems is detachably provided on a vacuum cleaner main body having an electric blower and the vacuum cleaner main body, and is sucked by the drive of the electric blower. A dust collecting device for collecting dust is provided, and the dust collecting device includes a centrifugal separation unit for separating dust, a filter provided downstream of the centrifugal separation unit for collecting dust, and the centrifugal separation. It is characterized by having a filter support portion that supports the filter from the upstream side in a state of being separated from the exhaust port of the portion.

The vacuum cleaner of the present invention includes a filter support portion on the downstream side of the centrifuge portion of the dust collector. Further, the filter support portion supports the filter in a state of being separated from the exhaust port of the centrifuge portion, and can suppress the blockage of the exhaust port and the accompanying decrease in suction capacity. Therefore, according to the present invention, it is possible to provide a vacuum cleaner provided with a dust collector capable of effectively suppressing a decrease in suction capacity due to the exhaust port of the centrifuge being blocked by a filter.

According to the present invention, it is possible to provide an electric vacuum cleaner provided with a dust collector capable of effectively suppressing a decrease in suction capacity.

It is a side view of the vacuum cleaner which concerns on one Embodiment of this invention. It is sectional drawing of the main body part included in the vacuum cleaner of FIG. It is a perspective view of the dust collecting part provided in the vacuum cleaner of FIG. It is sectional drawing of the dust collecting part shown in FIG. FIG. 3 is a cross-sectional perspective view of the dust collecting portion shown in FIG. It is an exploded perspective view of the dust collecting part shown in FIG. It is an enlarged view of the part A of FIG. It is an exploded perspective view which shows the suction tool provided in the vacuum cleaner of FIG. It is a top view which shows the internal structure of the suction tool shown in FIG. It is an exploded perspective view which shows the internal structure of the suction tool shown in FIG. FIG. 5 is a perspective view showing a state in which the suction tool shown in FIG. 8 is viewed from the bottom surface side. The suction tool shown in FIG. 8 is a bottom view. (A) and (b) are exploded perspective views showing a rotary cleaning body and a cleaning body driving mechanism included in the suction tool shown in FIG. 8, respectively. It is a side sectional view which shows the suction tool shown in FIG. 8, (a) shows the state which separated the upper case and the lower case, and (b) shows the state which integrated the upper case and the lower case. It is an exploded perspective view which shows the mounting structure of the cleaning body drive mechanism. (A) is an enlarged view of part B of FIG. 7, and (b) is a side view showing a state in which the joint part 44 is tilted toward the back side. It is a perspective view which shows the electric vacuum cleaner unit which concerns on the 1st modification. It is an enlarged view of the main part of FIG. (A) is a perspective view showing the configuration of the support column portion and its vicinity in the vacuum cleaner unit of FIG. 17, and (b) is an enlarged view of part A of (a). It is a perspective view which shows the structure of the vicinity of the pipe part in the vacuum cleaner unit of FIG. It is a side view which shows the state which removed the dust collecting part from the vacuum cleaner which concerns on the 2nd modification. (A) is a perspective view of the dust collecting portion, and (b) is a perspective view showing a state immediately before attaching the dust collecting portion of (a). It is an exploded perspective view of the air passage composition cylinder provided in the vacuum cleaner of FIG. It is a perspective view of the electric vacuum cleaner which concerns on the 3rd modification. (A) is a perspective view showing a state in which the dust collector is removed from the vacuum cleaner of FIG. 24 as viewed from below, and (b) is a connection between the dust collector and the main body of the vacuum cleaner of FIG. 24. It is sectional drawing which shows the vicinity of a part. It is a perspective view which shows the dust collecting part which the vacuum cleaner of FIG. 24 has. It is a perspective view which shows the state just before the installation of the dust collecting part in the vacuum cleaner of FIG. It is a perspective view which shows the state which provided the 1st member which concerns on the modification in the vacuum cleaner of FIG. It is a perspective view which shows the dust collecting part which provided the filter support part which concerns on a modification. It is a perspective view which shows the modification of the electric blower. It is an exploded perspective view of FIG. It is a perspective view of the electric vacuum cleaner which concerns on the modification which provided the mop and the mop case. It is an enlarged view of the main part of FIG. FIG. 3 is an enlarged cross-sectional view of a mounting portion of a mop case in the vacuum cleaner of FIG. 32. It is a perspective view which shows an example of a mop. It is an exploded view which shows the handle of the mop of FIG. FIG. 3 is an exploded perspective view showing a rotating portion included in the mop of FIG. 35. (A) is a perspective view showing a modified example of the pipe portion, and (b) is a cross-sectional view of (a). It is a perspective view which shows the example which provided the arrangement part for arrangement of accessories in a vacuum cleaner. It is a side view which shows the deformation example which concerns on the structure and arrangement of the electric blower in a vacuum cleaner by breaking a part of the main body case. It is sectional drawing of the main part of the dust collecting part which concerns on the modification, and the vicinity thereof.

Hereinafter, the vacuum cleaner 1 according to the embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the overall configuration of the vacuum cleaner 1 will be outlined, and then the main parts will be described in more detail. In the following description, unless otherwise specified, the positional relationship in the vertical direction, the width direction, etc. will be described with reference to the state in which the vacuum cleaner 1 is erected as shown in FIG.

≪About the overall configuration of vacuum cleaner 1≫
As shown in FIGS. 1 to 3, the vacuum cleaner 1 is a vacuum cleaner having a stick-like (vertical) appearance. The vacuum cleaner 1 may be, for example, a rechargeable vacuum cleaner or one that obtains electric power from an external power source via a power cord. As shown in FIG. 1, the vacuum cleaner 1 includes a vacuum cleaner main body 10, a dust collector 20 (dust collector), a pipe portion 30 (pipe portion), and a suction tool 40.

The vacuum cleaner main body 10 is a portion that forms the main body of the electric vacuum cleaner 1 and exerts a suction force to collect dust. Specifically, as shown in FIG. 2, the vacuum cleaner main body 10 drives an electric blower 14 and other electronic components for sucking air to generate an air flow inside the main body case 12 forming a housing. It is equipped with a drive circuit and other parts.

Further, the vacuum cleaner main body 10 includes a grip portion 16. The grip portion 16 is a portion provided for the user of the vacuum cleaner 1 to grip the vacuum cleaner main body 10. That is, the vacuum cleaner 1 is configured so that the vacuum cleaner main body 10 can be gripped by, for example, the user passing a finger other than the thumb through the opening portion formed by the grip portion 16. More specifically, a battery portion 17 in which the battery 17a is arranged is provided on one end side of the vacuum cleaner main body 10, and one end of the grip portion 16 is connected to the battery portion 17 and extends so as to be separated from the battery portion 17. Then, the other end of the grip portion 16 is connected to the front side of the electric blower 14. The vacuum cleaner main body 10 has an exhaust port 15 for discharging the air discharged from the electric blower 14 on the grip portion 16 side. The exhaust port 15 is provided so as to face the opening portion formed by the grip portion 16, and exhausts the exhaust port 15 laterally from the grip portion 16 so that the exhaust air does not directly hit the hand of the user who grips the grip portion 16. Guide the wind.

The dust collecting unit 20 is a portion where dust sucked by the vacuum cleaner 1 is collected. The dust collecting unit 20 is provided so as to be continuous with the vacuum cleaner main body 10. A pipe connecting portion 22 for connecting the pipe portion 30 or the suction tool 40 is provided on the lower end side along the dust collecting portion 20. The pipe connecting portion 22 has a connecting opening that can be connected to the pipe portion 30, the suction tool 40 or various attachments, and a dust collecting portion side opening that can be connected to the first inflow port 68 of the dust collecting portion 20. Since the dust collecting unit 20 is a characteristic part of the vacuum cleaner 1, the specific structure will be described in detail later.

The pipe portion 30 is a tubular member that detachably connects the vacuum cleaner main body 10 and the suction tool 40. The pipe portion 30 has a shape in which one end side can be inserted into the pipe connecting portion 22 and the other end has a shape in which it can be connected to the suction tool 40. By connecting the vacuum cleaner main body 10 and the suction tool 40 via the pipe portion 30, a series of communicating paths (air passages) from the suction tool 40 to the vacuum cleaner main body 10 can be formed.

The suction tool 40 includes a case body 42 and a joint portion 44. Further, as shown in FIGS. 8 to 16 and the like, the suction tool 40 has a suction port 43 at the bottom of the case body 42, and has a rotary cleaning body 46, a cleaning body driving mechanism 48, and the like inside the case body 42. It is equipped with members. The case body 42 is a portion arranged on the floor during cleaning, and has a shape that is longer in the left-right direction with respect to the front-rear direction, which is the direction operated by the user during cleaning. Inside the case body 42, a suction space for sucking air and dust from the outside is formed with the floor surface side as an open end. Further, the joint portion 44 is rotatably attached to the case body 42 within a predetermined rotation range (front-rear direction and left-right direction). The joint portion 44 is a portion to which the end portion of the pipe portion 30 described above is connected. The joint portion 44 has a tubular shape, and the internal space communicates with the suction space. The joint portion 44 is in a state of being fitted to the case body 42 side by being in an upright posture. The characteristic portion of the suction tool 40 will be described in detail later.

The vacuum cleaner 1 has a configuration as described above. The vacuum cleaner 1 is said to have a characteristic structure in each part such as a dust collector 20 and a suction tool 40. Hereinafter, the structure of each part of the vacuum cleaner 1 will be described in more detail.

<< About the configuration of the dust collector 20 >>
Hereinafter, the dust collecting unit 20 will be described in detail with reference to FIGS. 3 to 6. The dust collecting unit 20 is provided detachably from the vacuum cleaner main body 10. The dust collecting section 20 includes a dust collecting container 50, a centrifuge section 100, a filter 70 (omitted in FIG. 5), a filter support section 80, and a cover section 90. The dust collector 20 is a so-called cyclone type dust collector. That is, the dust collecting unit 20 introduces air from the inflow port (first inflow port 68) provided in the dust collecting container 50, forms a swirling airflow in the dust collecting container 50, and then collects the air in the process of discharging the air. It is supposed to be dusty. Further, the dust collector 20 can adopt a so-called single-stage separation method or a multi-stage separation method having three or more stages, but in the present embodiment, the so-called two-stage centrifugal separation method is adopted. Therefore, the dust collecting unit 20 can collect dust by centrifuging into small dust and large dust by performing two-step centrifugation.

The dust collecting container 50 is a container provided with an outer container 52, an inner container 54, a bottom portion 58, and a lid portion 106. In the dust collecting container 50, the inner container 54 is arranged inside the outer container 52, and the bottom portion 58 is attached to one side (bottom side) of the outer container 52 in the axial direction to close the dust collecting container 50. The lid 106 is attached to the upper end side).

The outer container 52 is a cylindrical container. The outer container 52 has a dust collecting chamber 62 on one side (bottom side) in the axial direction and a centrifuge chamber 64 on the other side (upper end side) via a partition wall 60 (umbrella-shaped portion) in the middle portion in the axial direction. It is divided into. The partition wall 60 can suppress the dust in the dust collecting chamber 62 from flying up due to the swirling airflow formed in the centrifugal separation chamber 64.

The partition wall 60 is formed in an umbrella shape. The partition wall 60 is formed so as to have a downward slope from the radial inside (axial side) of the outer container 52 to the outside. The partition wall 60 has an inner opening 66a in the central portion (axial side) in the radial direction and an outer opening 66b (see FIG. 4) in the circumferential direction. The outer container 52 is formed so as to communicate with the dust collecting chamber 62 and the centrifuge chamber 64 via the inner opening 66a and the outer opening 66b. That is, the inner opening 66a is a substantially circular opening formed so as to communicate with the bottom side of the centrifuge portion 100. The outer opening 66b is an opening that exists radially outside the inner opening 66a and is formed by cutting out a part of the partition wall 60.

As shown in FIGS. 3 and 4, the outer container 52 has a first inflow port 68 on the outer peripheral portion. The first inflow port 68 is opened at the axial middle portion of the outer container 52 (on the centrifuge chamber 64 side of the partition wall 60). Therefore, the first inflow port 68 communicates with the centrifuge chamber 64. The first inflow port 68 is rectangularly opened at the inflow portion 68a extending in a tubular shape from the outer surface of the outer container 52. The inflow portion 68a extends so as to incline from the end portion in the circumferential direction toward the center side. Further, the first inflow port 68 is provided at a position corresponding to the outer peripheral guide rib 116 provided in the centrifugal separation outer cylinder 102 of the centrifugal separation portion 100, which will be described later, and the outer peripheral guide rib 116 forms a part of the air passage together with the inflow portion 68a. It extends so as to abut the inner peripheral surface of the outer container 52 so as to form a structure. As a result, the outer container 52 is made capable of allowing air to flow into the inside of the centrifuge chamber 64 through the first inflow port 68 along the inner peripheral surface of the outer container 52, and the air easily flows in one direction. The direction is defined by the outer peripheral guide rib 116.

The inner container 54 is a container arranged inside the outer container 52. The inner container 54 is arranged in the dust collecting chamber 62 below the partition wall 60. The inner container 54 is arranged so that the axial center position of the inner container 54 substantially coincides with that of 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 on one end side (bottom side) in the axial direction. Further, the inner container 54 communicates with the inner opening 66a provided in the partition wall 60 on the other end side (upper end side) in the axial direction.

The inner container 54 has an inner container diameter-reduced portion 76 whose diameter is tapered from the upper end side to the middle portion in the axial direction. Further, the inner container 54 has a tubular shape having a substantially uniform opening diameter on the lower side of the inner container reduced diameter portion 76. The inner container 54 is airtightly connected to the centrifuge outer cylinder 102 of the centrifuge portion 100 via the first seal portion S1 described in detail later.

The bottom portion 58 closes the bottom portion (dust collection chamber 62 side) of the dust collection container 50. The bottom portion 58 is designed so that the bottom portion of the dust collecting container 50 can be opened and closed. In this embodiment, as shown in FIG. 4, the bottom portion 58 is connected to the dust collection container 50 via a hinge 82. Further, the bottom portion 58 can be fixed to the dust collection container 50 in a state where the bottom portion of the dust collection container 50 is closed by the lock portion 84 located on the radial opposite side of the dust collection container 50 with respect to the hinge 82. There is.

The bottom portion 58 is provided with a swivel suppression rib 86. The swivel suppression rib 86 is provided so as to be arranged inside the outer dust collecting chamber 72 formed between the inner container 54 and the outer container 52 in a state where the bottom of the dust collecting container 50 is closed by the bottom portion 58. ing. Further, the swirl suppressing rib 86 is a rib for suppressing the swirling of the dust collected in the outer dust collecting chamber 72 due to the swirling airflow formed in the vicinity of the bottom portion 58. The swivel suppression rib 86 is provided so as to project from the inner surface of the bottom portion 58 (the surface facing the inside of the dust collection container 50 when the bottom portion 58 is closed) in the axial direction of the dust collection container 50. Further, a plurality (four in this embodiment) of the swivel suppression ribs 86 are provided in the axial direction (circumferential direction) of the dust collecting container 50. A second seal member 88 is provided on the inner surface of the bottom portion 58. The second seal member 88 constitutes the second seal portion S2, which will be described in detail later. 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, and the inner container 54 can be hermetically closed.

The centrifuge unit 100 is a portion for centrifuging the dust. The centrifuge 100 includes a centrifuge outer cylinder 102, a centrifuge inner cylinder 104, a lid 106, and a support 108.

The centrifuge outer cylinder 102 is a cylinder capable of accommodating the centrifuge inner cylinder 104. The centrifuge outer cylinder 102 is provided with a small hole 114, an outer peripheral guide rib 116 (see FIG. 3), and a positioning protrusion 118 on the peripheral surface. The centrifugal separation outer cylinder 102 is a member that forms a first centrifugal separation chamber 110 with the outer container 52 of the dust collection container 50 and also forms a second centrifugal separation chamber 112 inside.

The first centrifuge chamber 110 is capable of introducing an air flow from the outside through the first inflow port 68 provided in the outer container 52 of the dust collecting container 50 described above. 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 collection container 50. The first centrifugal separation chamber 110 can generate a swirling air flow by allowing air to flow in the tangential direction of the centrifugal outer cylinder 102 from the first inflow port 68. This makes it possible to centrifuge relatively large dust contained in the introduced air (first centrifuge). The relatively large dust separated from the air by the first centrifugation falls toward the partition wall 60 forming the bottom of the first centrifugation chamber 110. The dust that has fallen on the partition wall 60 is collected by falling into the outer dust collecting chamber 72 provided below the partition wall 60 through the outer opening 66b provided on the partition wall 60.

A large number of small holes 114 are provided on the peripheral surface of the centrifuge outer cylinder 102. The small hole 114 communicates with the first centrifugal separation chamber 110 formed on the outside of the centrifugal separation outer cylinder 102 and the second centrifugal separation chamber 112 formed on the inner side. Therefore, the centrifuge unit 100 can introduce the air in which large dust is collected in the first centrifuge chamber 110 into the second centrifuge chamber 112 through the small holes 114.

The outer peripheral guide rib 116 is provided on the peripheral surface of the centrifugal separation outer cylinder 102 at a position corresponding to the first inflow port 68 provided in the outer container 52 of the dust collecting container 50 described above. In the outer peripheral guide rib 116, the air that has flowed into the inside of the first centrifugation chamber 110 from the first inflow port 68 is determined in the axial direction along the outer peripheral surface of the centrifugal outer cylinder 102 and the inner peripheral surface of the outer container 52. It guides the flow in the direction.

As shown in FIGS. 5 and 7, the positioning protrusion 118 is a protrusion provided so as to project outward in the radial direction from the outer peripheral surface of the centrifuge outer cylinder 102. When the centrifuge 100 is attached to the dust collection container 50, the positioning protrusion 118 fits into the protrusion receiving portion 52a provided on the outer container 52 of the dust collection container 50, so that the centrifuge outer cylinder 102 becomes the dust collection container. It is possible to regulate the rotation in the circumferential direction with respect to 50.

The centrifuge inner cylinder 104 is arranged in a second centrifugation chamber 112 formed inside the centrifuge outer cylinder 102. A plurality of (five in this example) centrifugal separation inner cylinders 104 are provided. The centrifuge inner cylinder 104 is arranged substantially evenly in the axial direction (circumferential direction) in the second centrifuge chamber 112. Further, a plurality of (five in this embodiment) centrifugal separation inner cylinders 104 are integrated on the upper end side by the upper wall portion 120 formed in an annular shape. Each of the centrifuge inner cylinders 104 is arranged so that the upper end thereof circumscribes the inner peripheral surface of the upper wall portion 120.

The centrifugal inner cylinder 104 has a substantially uniform outer diameter (opening diameter) from the upper end side to the middle portion, and has a centrifugal separation reduced diameter portion 122 that is tapered from the middle portion to the lower end side. Has been done. The centrifuge inner cylinder 104 is arranged in the second centrifuge chamber 112 in a posture in which the axial direction faces in the vertical direction. The centrifuge inner cylinder 104 has a second inflow port 124 on the upper end side. The second inflow port 124 opens in the vicinity of the inner peripheral surface of the upper wall portion 120 formed in an annular shape. As a result, the second inflow port 124 is capable of introducing an air flow inside the centrifugal inner cylinder 104 along the curvature of the inner peripheral surface of the upper wall portion 120. When an airflow enters the centrifugal inner cylinder 104 through the second inflow port 124, a swirling airflow traveling downward (in the direction toward the centrifugal reduced diameter portion 122) is formed. As a result, relatively small dust contained in the air introduced into the centrifugal inner cylinder 104 is centrifuged (second centrifugal separation). The dust separated by the second centrifugation is discharged from the lower end side of each centrifugation inner cylinder 104 toward the dust collection container 50. The second centrifugal separation chamber 112 communicates with the inner dust collection chamber 74 formed in the dust collection container 50. Therefore, the dust discharged from each centrifugal inner cylinder 104 falls toward the inner dust collecting chamber 74 and accumulates. Further, the air introduced into the centrifugal inner cylinder 104 becomes an updraft from the lower side to the upper side of the centrifugal inner cylinder 104 after dust is removed by the second centrifugal separation, and is upward (downstream). It is discharged toward the side).

The lid portion 106 is attached so as to cover the upper end side of the centrifuge outer cylinder 102. The lid portion 106 has a lid plate portion 130 and an insertion portion 132. The lid plate portion 130 is a plate-shaped portion formed in a substantially circular shape in a plan view. The lid plate portion 130 has a closing portion 134 formed in a substantially disk shape, and an upright portion 136 standing upright with respect to the closing portion 134 at the outer edge portion of the closing portion 134. The closure portion 134 is provided with a centrifugal separation exhaust port 138 at a position corresponding to each of the plurality of centrifugal separation inner cylinders 104 provided. The upright portion 136 projects toward both the front surface side and the back surface side of the closing portion 134. Further, the insertion portion 132 is a tubular portion provided corresponding to each centrifugal exhaust port 138 provided in the closing portion 134. The insertion portion 132 projects toward the back side (upstream side) of the closing portion 134. Each of the insertion portions 132 is inserted into each centrifuge inner cylinder 104. Further, the insertion portion 132 also protrudes toward the front side (downstream side) of the closing portion 134, and may protrude to a height higher than that of the closing portion 134, but in the present embodiment, the height is lower than that of the closing portion 134. It stands out. Between the closing portion 134 and the insertion portion 132, a recess 132a lower than the height of the insertion portion 132 is provided around the insertion portion 132. As a result, even if the dust adhering to the filter 70 naturally falls off on the closing portion 134 and moves due to the air flow, it can be accumulated in the recess 132a.

The support portion 108 supports the filter support portion 80 from the upstream side (lower side in the illustrated state). The support portion 108 is a rib that reinforces the filter support portion 80 while supporting the filter support portion 80. The support portion 108 has a central support rib 140 and an outer support rib 142.

The central support rib 140 is a rib that protrudes from the substantially central portion in the radial direction toward the front side (downstream side) in the closed portion 134 of the lid plate portion 130. The central support rib 140 can also be used as a knob when removing the centrifuge 100 from the dust collection container 50. Further, the outer support rib 142 is a rib provided on the radial side of the closing portion 134 with respect to the central support rib 140. Like the central support rib 140, the outer support rib 142 projects toward the front side (downstream side) of the closing portion 134.

The filter 70 is for capturing dust contained in the air discharged from the centrifugal exhaust port 138 of the centrifugal separator 100. The filter 70 is made of, for example, a non-woven fabric. The filter 70 is provided on the downstream side in the blowing direction with respect to the centrifuge portion 100. Specifically, the filter 70 is arranged on the lid 106 provided on the upper end side of the centrifuge 100 via the filter support 80.

As shown in FIG. 6, the filter support portion 80 is a member for supporting the filter 70 on the downstream side (upper side in the illustrated example) in the air flow direction from the centrifugal separation exhaust port 138 of the centrifugal separation unit 100. The filter support portion 80 has a support frame 150, an exhaust port facing portion 152, and a support opening 154.

The support frame 150 supports the filter 70 from the upstream side in the flow direction of air (exhaust) with the filter 70 separated from the centrifugal exhaust port 138. The support frame 150 has an annularly formed outer edge portion 156, a radial connecting portion 158 connecting the outer edge portion 156 and each exhaust port facing portion 152, and a peripheral connecting between the exhaust port facing portions 152 and 152 adjacent to each other in the circumferential direction. It has a directional connecting portion 160.

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 the same as the inner diameter of the vertical portion 136 forming the outer edge of the lid plate portion 130 in the lid portion 106. Therefore, when the support frame 150 is fitted into the area surrounded by the upright portion 136 in the lid portion 106, the outer edge portion 156 is erected at a position radially inwardly adjacent to the upright portion 136. .. Further, the outer edge portion 156 is provided with a groove 156a formed over substantially the entire circumference. The groove 156a is open upward.

The radial connecting portion 158 is provided according to the number of exhaust port facing portions 152 (five in this embodiment). The radial connecting portion 158 is provided radially in a state where the support frame 150 is viewed in a plan view, and connects the exhaust port facing portion 152 and the outer edge portion 156. Further, the circumferential connecting portion 160 linearly connects the exhaust port facing portions 152 and 152. In the present embodiment, since the exhaust port facing portions 152 are provided, the circumferential connecting portion 160 is provided in a substantially pentagonal shape.

The exhaust port facing portion 152 is provided at a position facing the centrifugal exhaust port 138 while being separated from the centrifugal exhaust port 138 on the downstream side in the air discharge direction. The exhaust port facing portion 152 is formed so as to have substantially the same size and shape as the opening region of the centrifugal exhaust port 138.

The support opening 154 is one or more openings provided for discharging the air discharged from each of the centrifugal separation exhaust ports 138 to the downstream side. In the present embodiment, the support frame 150 can reduce the outflow resistance and pressure loss of the air discharged from the plurality of centrifugal exhaust ports 138, and the filter 70 can be used as a whole, so that the collection effect can be improved. In order to do so, the portion of the support frame 150 is open except for the portion provided with the outer edge portion 156, the radial connecting portion 158, the circumferential connecting portion 160, and the exhaust port facing portion 152. In the present embodiment, this open portion is referred to as a support opening 154. In other words, the support opening 154 is composed of a plurality of openings surrounded by an outer edge portion 156, a radial connecting portion 158, a circumferential connecting portion 160, and an exhaust port facing portion 152.

The cover portion 90 is a cover mounted on the downstream side (upper side in the illustrated example) in the air flow direction of the filter support portion 80 described above. The cover portion 90 is a member formed in a substantially tubular shape, and has a dust collecting portion discharge port 170 on the downstream side (upper side in the illustrated example) thereof. The cover portion 90 has an L-shaped groove (axial groove and circumferential groove) on the inner peripheral surface, and has a protrusion extending in the radial direction on the outer surface of the dust collecting container 50. When the cover portion 90 is attached to the dust collection container 50, a protrusion is inserted into the inlet of the axial groove, and the cover portion 90 covers the dust collection container 50 so that the protrusion slides to the end of the axial groove. Move to. Then, the cover portion 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. By such an operation, the cover portion 90 is fixed to the dust collecting container 50. Here, a sealing member may be arranged between the cover portion 90 and the dust collecting container 50. This seal member can be configured to be arranged in an annular shape on the upper end of the dust collecting container 50. As a result, the airtightness between the dust collecting container 50 and the cover portion 90 can be ensured.

Further, the cover portion 90 has a double structure in which the peripheral wall 172 is composed of the outer peripheral wall 174 and the inner peripheral wall 176. The outer peripheral wall 174 extends in the axial direction from the inner peripheral wall 176. The inner diameter of the outer peripheral wall 174 is the same as the outer diameter of the outer container 52 constituting the dust collecting container 50. Further, the inner peripheral wall 176 can be fitted into the groove 156a provided in the outer edge portion 156 of the support frame 150. Therefore, the peripheral wall 172 has an outer container 52 constituting the dust collecting container 50, an upright portion 136 forming the outer edge of the lid plate portion 130, and an outer edge portion 156 of the filter support portion 80 between the outer peripheral wall 174 and the inner peripheral wall 176. The inner peripheral wall 176 can be fitted into the groove 156a of the support frame 150 and fixed while being inserted in a state where the two are overlapped. Thereby, the outer peripheral edge portion of the filter 70 arranged in the filter support portion 80 can be sandwiched between the inner peripheral wall 176 and the groove 156a of the support frame 150 and fixed.

As described above, the dust collector 20 separates and collects the dust by introducing the air sucked together with the dust in the suction tool 40 to generate a swirling flow. Therefore, a configuration that can seal each part of the dust collecting unit 20 so as not to cause leakage of air or the like can be an important factor in ensuring the dust collecting function of the dust collecting unit 20. Therefore, the dust collecting portion 20 is provided with five sealing portions including the first sealing portion S1 to the fifth sealing portion S5.

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 centrifugal separation outer cylinder 102 into the seal groove 55 provided on the upper end side of the inner container 54 and airtightly connecting the first seal portion S1.

Further, the second seal portion S2 is configured by using a second seal member 88 provided on the inner surface of the bottom portion 58 that closes the bottom of the dust collection container 50. The second seal portion S2 is configured by closing the bottom portion 58 so that the second seal member 88 comes into close contact with the lower end portion of the inner container 54 forming the dust collection container 50. By providing the second seal portion S2, the inner container 54 can be airtightly closed, and the outer dust collecting chamber 72 formed inside and outside the inner container 54 and the inner dust collecting chamber 74 can be airtightly separated.

The third seal portion S3 has a third seal member 57 interposed between the bottom portion 58 and the end portion of the outer container 52 on the bottom side of the dust collecting container 50. As a result, it is possible to prevent air from flowing in and out of the dust collecting container 50 from between the bottom portion 58 and the end portion of the outer container 52.

As shown in FIGS. 5 and 7, the fourth seal portion S4 is located between the inner wall of the dust collecting container 50 (outer container 52) and the upper wall portion 120 of the centrifugal inner cylinder 104 constituting the centrifugal separation portion 100. Is a portion sealed by the fourth sealing member 125. One end of the fourth seal member 125 is formed over the entire circumference of the upper wall portion 120 at the flange portion 120a of the upper wall portion 120, which projects radially outward from the peripheral surface of the centrifuge outer cylinder 102, while opening laterally. It is inserted into the groove 120b. Further, in the fourth seal portion S4, the erection portion 136 erected on the outer peripheral side of the lid plate portion 130 constituting the lid portion 106 projects downward from the flange portion 120a of the upper wall portion 120, and the fourth seal portion S4 is sealed. It is in contact with the member 125. Further, it projects outward in the radial direction from the vertical portion 136, and the other end of the fourth seal member 125 is supported by a stepped portion formed in the outer container 52 constituting the dust collecting container 50. The fourth seal portion S4 has such a structure to ensure airtightness in the vicinity of the lid portion 106. That is, the fourth seal portion S4 has airtightness between the flange portion 120a and the upright portion 136, airtightness between the outer container 52 and the centrifuge outer cylinder 102, and airtightness between the outer container 52 and the upright portion 136. The sex is secured. In the fourth seal portion S4, the fourth seal member 125 may be supported at the upper end of the outer container 52.

The fifth seal portion S5, like the fourth seal portion S4, ensures airtightness in the vicinity of the lid portion 106. The fifth seal portion S5 is for ensuring airtightness at the joint portion between the back surface (upstream side surface) of the lid plate portion 130 forming the lid portion 106 and the upper end of the upper wall portion 120 of the centrifuge inner cylinder 104. It is a thing. The fifth seal portion S5 is hermetically sealed by interposing a sheet-shaped fifth seal member 131 between the back surface side of the lid plate portion 130 and the upper end of the upper wall portion 120. Further, the airtightness of the fifth seal portion S5 is improved by screwing the lid plate portion 130 to the upper wall portion 120 together with the fifth seal member 131. As a result, air leaks from between the centrifuge inner cylinder 104 and the lid 106, and air flowing in from the small hole 114 of the centrifuge outer cylinder 102 leaks from between the lid 106 and the upper wall 120. It can be effectively suppressed.

Further, as shown in FIGS. 2 and 4, the bottom portion 58 of the dust collecting portion 20 is provided with a recess 20b on the bottom side of the lock portion 84. As shown in FIG. 2, the concave portion 20b is configured to be able to be locked to the convex portion 10a provided on the lower end side of the portion where the back surface of the dust collecting portion 20 contacts in the pipe connecting portion 22. Further, the dust collecting portion 20 is provided with a lock portion 20c on the side opposite to the concave portion 20b in the radial direction and on the opposite side to the bottom portion 58. The lock portion 20c projects upward. The lock portion 20c can be fixed to the vacuum cleaner main body 10 side by fitting the lock portion 20c into a recess 10b provided so as to open downward on the front side of the vacuum cleaner main body 10. The dust collecting portion 20 has an inclined surface 20a on the top surface side of the cover portion 90. The inclined surface 20a substantially matches the inclination of the bottom surface of the portion of the vacuum cleaner main body 10 in which the electric blower 14 is housed. When the dust collecting portion 20 is attached to the vacuum cleaner main body 10, the first inflow port 68 is connected to the dust collecting portion side opening of the pipe connecting portion 22 with the convex portion 10a locked to the concave portion 20b as a fulcrum. If it is rotated so as to approach, the lock portion 20c is fitted into the recess 10b. Therefore, the inclined structure makes it easy for the vacuum cleaner 1 to mount the dust collector 20 below the electric blower 14.

<< About the configuration of the suction tool 40 >>
Subsequently, the suction tool 40 will be described in detail with reference to FIGS. 8 to 16 with reference to the characteristic portions. As described above, the suction tool 40 includes a case body 42, a joint portion 44, a rotary cleaning body 46, and a cleaning body driving mechanism 48 (see FIG. 8). The suction tool 40 communicates with the vacuum cleaner main body 10 via the dust collecting portion 20 by connecting the pipe portion 30 or the vacuum cleaner main body 10 to the joint portion 44. Further, the suction tool 40 has a suction space in which the case body 42 opens toward the floor surface side, and the rotary cleaning body 46 is rotatably supported inside the suction space.

As shown in FIG. 9 and the like, the rotary cleaning body 46 has a cleaning body main body 200 extending in the longitudinal direction (left-right direction) of the case body 42, and a mounting portion 202. The cleaning body main body 200 is provided with a brush mounting portion 206 on the outside of the cleaning body main body 200 formed in a tubular shape. The brush is provided so as to draw a spiral on the outer circumference of the brush mounting portion 206 with the axial center position of the cleaning body main body 200 as the center.

The mounting portion 202 is a portion used for mounting the rotary cleaning body 46 to the case body 42. The mounting portion 202 is attached to the cleaning body main body 200 as a separate member from the cleaning body main body 200 on one side and the other side in the longitudinal direction of the cleaning body main body 200, but is integrated with the cleaning body main body 200. May be good. The rotary cleaning body 46 has mounting portions 202 and 202 provided at both ends (hereinafter, both may be distinguished from “mounting portion 202a” and “mounting portion 202b” as necessary) in the case body 42. By mounting it at a predetermined mounting position provided, it is rotatably supported with respect to the case body 42.

Specifically, as shown in FIG. 13A, the mounting portion 202a has an end portion 205 having a prismatic shape (cross-sectional shape is substantially square) on one end side in the axial direction of the rotary cleaning body 46, and an end portion. It has a flange portion 207a provided at a position adjacent to the portion 205 in the axial direction. The end portion 205 is rotatably attached to the cleaning body main body 200 (flange portion 207a).

Here, as shown in FIGS. 10 and 11, the receiving portion 42c to be attached to the mounting portion 202a of the rotary cleaning body 46 in the case body 42 can be separated into a lower receiving portion 42x and an upper receiving portion 42y. It is said that. The lower receiving portion 42x is removable on the back surface side of the case body 42. Specifically, as shown in FIG. 11, in the portion where the upper receiving portion 42y is formed in the upper case 42b, the upper engaging portion 42p, which is convex on the front side (upper side in the illustrated state) of the case body 42, A concave upper engaged portion 42q is provided on the back side (lower side in the illustrated state). Further, the lower receiving portion 42x is provided with a concave lower engaged portion 42r capable of engaging with the upper engaging portion 42p at a position corresponding to the upper engaging portion 42p on the upper receiving portion 42y side. A convex lower engaging portion 42s is provided at a position corresponding to the upper engaged portion 42q. The lower receiving portion 42x is provided with a claw portion 42t so that the lower engaging portion 42s can be swung. Since it has such a configuration, after the lower engaged portion 42r is engaged with the upper engaging portion 42p, the lower engaging portion 42s is inserted into the upper engaged portion 42q to be engaged. Therefore, the lower receiving portion 42x can be attached to the upper receiving portion 42y. On the contrary, when the lower receiving portion 42x is removed from the upper receiving portion 42y, the lower engaging portion 42s and the upper engaged portion 42q are first engaged by operating the claw portion 42t. To cancel. After that, by removing the lower engaged portion 42r from the upper engaging portion 42p, the lower receiving portion 42x can be removed from the upper receiving portion 42y. Further, the upper receiving portion 42y is provided inside the case body 42. By attaching the lower receiving portion 42x to the back surface side of the case body 42, the receiving portion 42c can be formed.

As shown in FIGS. 10 and 12, the upper receiving portion 42y has an upper end fitting portion 42h, an upper flange fitting portion 42i, and an upper shaft support portion 42j. The upper end fitting portion 42h is a portion opened toward the bottom surface side of the case body 42 so that the above-mentioned prismatic end portion 205 can be fitted. Further, the upper flange fitting portion 42i is a portion opened toward the bottom surface side of the case body 42 so that the flange portion 207a can be fitted. The upper shaft support portion 42j is a portion curved in an arc shape along the shaft forming the mounting portion 202a.

As shown in FIGS. 10 and 11, the lower receiving portion 42x is located at the position corresponding to the above-mentioned upper end fitting portion 42h and the upper shaft supporting portion 42j, respectively, at the lower end contact portion 42k and the lower side. It has a shaft support 42l. The lower end contact portion 42k is a block-shaped one formed so as to abut from the cleaning surface side to the outer peripheral surface (one side) of the end 205, and is formed from the other outer peripheral surface (one side) of the end 205. The end 205 is fixed to the case body 42 when the upper end fitting portion 42h comes into contact with the three sides). Further, the lower shaft support portion 42l is curved along the shaft forming the mounting portion 202a like the upper shaft support portion 42j. In the rotary cleaning body 46, the end portion 205 and the flange portion 207a are fitted into the upper end fitting portion 42h and the upper flange fitting portion 42i, respectively, and the lower receiving portion 42x is attached to the upper receiving portion 42y. By doing so, the end 205 side can be incorporated into the case body 42.

On the other hand, as shown in FIG. 13, the mounting portion 202b supports the end portion of the rotary cleaning body 46 on the other end side in the axial direction (the side opposite to the mounting portion 202a). The mounting portion 202b includes a first mounting body 202x that can be connected to the second mounting body 202y described later. The first mounting body 202x is fixed to the end portion of the cleaning body main body 82a. The second mounting body 202y is provided on the driven side pulley 216, which will be described later, and is arranged on the case body 42 (lower case 42a) side. The first mounting body 202x and the second mounting body 202y are connectable and separable in the axial direction.

The first mounting body 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 may be any shape, but in the present embodiment, it has a cross shape. The mounting recess 202e is a portion where the mounting convex portion 202j of the second mounting body 202y, which will be described later, can be fitted and engaged. The first flange portion 202i is provided so as to bulge outward in the radial direction at the end portion of the first mounting body 202x (the end portion on the second mounting body 202y side).

The second mounting body 202y has a mounting convex portion 202j and a shaft portion 202k. The mounting convex portion 202j projects in the axial direction at the end of the second mounting body 202y, and is capable of engaging with the above-mentioned mounting recess 202e. The shape of the mounting convex portion 202j may be any shape, but in the present embodiment, the shape is a cross shape like the mounting concave portion 202e. The shaft portion 202k is a shaft body provided at the axial center position of the second mounting body 202y. The shaft portion 202k is inserted from one side to the other side of the plate-shaped holding member 220 provided on the case body 42. The shaft portion 202k is connected to the driven side pulley 216 of the cleaning body drive mechanism 48, which will be described later. As a result, the rotary cleaning body 46 can rotate in conjunction with the driven side pulley 216.

In the present embodiment, the suction tool 40 is provided with a cleaning body driving mechanism 48, and the rotary cleaning body 46 is driven by receiving the power output from the cleaning body driving mechanism 48. As shown in FIGS. 9 and 13, the cleaning body drive mechanism 48 includes a drive machine 210, a power transmission body 212, an output side pulley 214, a driven side pulley 216, and the like.

The drive machine 210 is composed of a motor or the like provided in the case body 42. The drive machine 210 is arranged in the area on the back side with respect to the rotary cleaning body 46. Further, the power transmission body 212 is composed of a toothless endless belt. Further, the output side pulley 214 is a toothed pulley attached to the output shaft of the drive machine 210. Further, the driven side pulley 216 is a toothed pulley integrally provided on the mounting portion 202b. The cleaning body drive mechanism 48 has a configuration in which a power transmission body 212 made of an endless belt is hung between the output side pulley 214 and the driven side pulley 216. Therefore, by operating the drive machine 210, the rotational power can be transmitted to the mounting portion 202b side, and the rotary cleaning body 46 can be rotationally driven in the suction space of the case body 42.

Further, as shown in FIGS. 13 and 14, each member forming the cleaning body driving mechanism 48 is held by the holding member 220. The holding member 220 is erected in the area of the case body 42 on the side where the second mounting body 202y is mounted. In other words, the holding member 220 is arranged side by side with the rotary cleaning body 46 in the axial direction of the rotary cleaning body 46. Further, the holding member 220 is a plate-shaped member extending along the alignment direction of the rotary cleaning body 46 and the driving machine 210. Regarding the holding member 220, the output side pulley 214, the driven side pulley 216, and the power transmission body 212 are arranged on the side opposite to the rotary cleaning body 46. The holding member 220 may be configured to extend a soundproof rib in the axial direction of the rotary cleaning body 46 so as to cover at least a part of the power transmission body 212 from above. The soundproof rib partially covers the power transmission body 212 to provide soundproofing. Further, the holding member 220 may be provided so that the reinforcing ribs extending along the alignment direction of the rotary cleaning body 46 and the drive machine 210 project on the same side or the opposite side to the rotary cleaning body 46. As a result, it is possible to suppress the holding member 220 from bending, and by extension, it is possible to improve the positioning accuracy of the rotary cleaning body 46 and the drive machine 210 in the axial direction. Further, the holding member 220 specifically has a lower holding member 222 and an upper holding member 224 (see FIG. 14).

As shown in FIG. 9 and the like, the lower holding member 222 has a lower wall portion 222a and a fixing portion 222b that fixes the lower wall portion 222a to the lower case 42a side on the lower end side. In the holding member 220, the lower holding member 222 is screwed to the lower case 42a in a plurality of fixing portions 222b, so that the lower wall portion 222a faces the front-rear direction (from the front side to the back side) of the case body 42. It is erected so as to extend in the direction). The fixing portion 222b is not an indispensable configuration, and may have a configuration in which the lower holding member 222 can be structurally positioned on the lower case 42a. Even with such a configuration, the effect of the reinforcing rib of the holding member 220 described above is fully exhibited.

Here, the cleaning body drive mechanism 48 will be specifically described with reference to FIG. A shaft insertion hole 216a opened in a substantially oval shape is provided at the axial center position of the driven side pulley 216. The shaft portion 202k of the second mounting body 202y is a shaft body having a substantially oval-shaped appearance shape similar to the shaft insertion hole 216a. Further, the lower wall portion 222a of the holding member 220, which will be described in detail later, is provided with a shaft support portion 220c that rotatably supports (supports) the second mounting body 202y. The shaft support portion 220c is provided with a bearing 225 that rotatably supports the shaft support portion 220c by inserting the shaft portion 202k. The second mounting body 202y inserts the shaft portion 202k into the bearing 225 provided in the shaft support portion 220c of the lower wall portion 222a and the shaft insertion hole 216a provided in the driven side pulley 216, and inserts the driven side pulley 216. By mounting the screw (fixing tool) 227 at the axial center position of the shaft portion 202k from the opposite side of the second mounting body 202y, the screw (fixing tool) 227 is fixed to the driven side pulley 216. Due to such a configuration, the rotary cleaning body 46 is interlocked with the driven side pulley 216 by connecting the first mounting body 202x provided on the rotary cleaning body 46 side to the second mounting body 202y. And it becomes rotatable. Therefore, it can be expressed that the second mounting body 202y is provided as a part of the driven side pulley 216.

At a position on the front side of the case body 42 in the lower wall portion 222a, a shaft support portion 220c for rotatably supporting (supporting) the second mounting body 202y provided at the end of the rotary cleaning body 46 is provided. .. Further, in the lower wall portion 222a, a receiving portion 222d notched so as to be able to support the driving device 210 is provided at a position on the back surface side of the case body 42. Specifically, the drive machine 210 has an output shaft provided on the drive machine main body 210a forming the motor, and has a diameter smaller than that of the drive machine main body 210a1 and the drive machine main body 210a1 which form most of the motor, and bulges in the axial direction. It has a bulging portion 210a2. The output shaft is provided on the bulging portion 210a2. The receiving portion 222d supports the bulging portion 210a2, which is an example. The receiving portion 222d may extend in the axial direction of the drive machine main body 210a1 to support the cleaning surface side of the drive machine main body 210a1 in the radial direction.
The receiving portion 222d is formed so as to extend downward from the upper end of the lower wall portion 222a. Therefore, when incorporating the drive machine 210, it can be easily assembled by sliding the bulging portion 210a2 along the receiving portion 222d. If the power transmission body 212 is hung on the output side pulley 214 and the driven side pulley 216, such installation is easier because the tension of the power transmission body 212 does not make it difficult to hang the power transmission body 212. be able to. Further, a screw hole 222e is provided at a position adjacent to the receiving portion 222d. The screw hole 222e is used for screwing the end portion of the drive machine main body 210a1 of the drive machine 210 to the lower wall portion 222a. In the present embodiment, screw holes 222e are provided at two locations on the front side and the back side via the receiving portion 222d.

Further, as shown in FIG. 14, the upper holding member 224 is a plate-shaped portion of the case body 42 that is erected with respect to the upper portion (upper case 42b). The upper holding member 224 is provided corresponding to the portion of the lower holding member 222 described above where the receiving portion 222d is provided. Therefore, when the upper case 42b and the lower case 42a are combined to form the case body 42, the open portion on the upper side of the receiving portion 222d is closed by the upper holding member 224. As a result, it is possible to prevent the drive machine 210 from unexpectedly falling off from the receiving portion 222d.

In the present embodiment, an example in which the upper holding member 224 is provided on the upper case 42b side is shown, but the present invention is not limited to this. For example, instead of providing the upper holding member 224 on the upper case 42b side, another member such as a case for accommodating the drive machine 210 may be provided, and the same configuration as that of the upper holding member 224 may be provided. Even in the case of such a configuration, the same action and effect as in the case where the upper holding member 224 is provided on the upper case 42b side can be expected as described above.

As shown by an arrow in FIG. 16B, the joint portion 44 is rotatably attached to the case body 42 in the front-rear direction and the left-right direction within a predetermined rotation range. As shown in FIGS. 14 (b) and 16 (a), a bulging portion 44a that bulges along the tubular axis direction of the joint portion 44 is provided on the front side (left side in the drawing) of the joint portion 44. Has been done. The length of the bulging portion 44a in the longitudinal direction of the case body 42 may be longer than the diameter of the joint portion 44, but in the present embodiment, the bulging portion 44a is designed to be shorter than the diameter of the joint portion 44. Further, the bulging portion 44a faces the upper case 42b side in a state where the joint portion 44 (pipe portion 30) is in an upright posture (the angle formed by the case body 42 and the joint portion 44 is, for example, 80 degrees to 90 degrees). Protruding. Further, ribs 42v protruding upward are provided at positions on the top surface side and the rear side of the upper case 42b. The rib 42v has a substantially “U” shape, and an fitting portion 42w that is open toward the rear side and the upper side is formed. On the other hand, the bulging portion 44a provided in the joint portion 44 described above is formed so as to be fitted into the fitting portion 42w in a state where the joint portion 44 is in an upright posture. Specifically, the rib 42v abuts on the front side of the bulging portion 44a, and the lower end of the bulging portion 44a (the end portion of the joint portion 44 in the tubular axis direction) is placed on the top surface of the upper case 42b surrounded by the rib 42v. To support. Therefore, when the joint portion 44 (pipe portion 30) is placed in the upright posture when the vacuum cleaner 1 is stored or the like, the bulging portion 44a of the joint portion 44 is fitted into the fitting portion 42w and is stable in the upright state. Become in a state. Further, the vacuum cleaner support device for supporting the vacuum cleaner 1 and the vacuum cleaner 1 may be used as the vacuum cleaner unit. The vacuum cleaner support device includes a suction tool mounting stand for mounting the suction tool 40 of the vacuum cleaner 1 and a support column for supporting the pipe portion 30 of the vacuum cleaner 1. Specifically, the pipe portion 30 includes an aluminum pipe main body portion, a resin first connection portion provided so as to be connectable to the pipe connection portion 22 of the vacuum cleaner main body 10 at one end of the pipe main body portion, and a pipe main body. At the other end of the portion, a joint portion 44 of the suction tool 40 and a resin-made second connecting portion provided so as to be connectable are provided, and the second connecting portion is locked to the support column, so that the vacuum cleaner 1 is in a self-supporting state. Supported by.

The strut has a tubular portion having a front opening formed on the peripheral surface so that the second connecting portion can be received from the rear side. The front opening of the tubular portion reaches the upper end along the tubular axis direction, and the second connecting portion is supported from the outside on the inner peripheral surface. Further, the open upper end of the tubular portion is formed with a support surface formed by the thick portion thereof, and supports the second connecting portion from below. The support surface at the upper end of the tubular portion includes two first support surfaces separated 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. Then, a stepped surface is formed between the second support surface and the first support surface. Therefore, one second support surface, one first support surface, and the first stepped surface between them are configured to be continuous, and the other second support surface and the other first support surface are It is configured so that the second stepped surface between them is continuous. On the other hand, the second connecting portion has a large-diameter portion located on the pipe portion main body side and a small-diameter portion having a smaller diameter than the large-diameter portion and located on the opposite side of the pipe portion main body. A stepped surface is formed between the small diameter portions. The small diameter part is supported from the outside by the inner peripheral surface of the tubular part, the stepped surface of the second connection part is supported from below by the two first support surfaces of the column, and the front side of the large diameter part is tubular. The second connecting portion is locked to the tubular portion by abutting on each of the first and second stepped surfaces at the upper end of the portion. As a result, the vacuum cleaner 1 is supported by the vacuum cleaner support device in a self-supporting state.

(1-1) The vacuum cleaner 1 of the present embodiment is detachably provided on the vacuum cleaner main body 10 having the electric blower 14 and the vacuum cleaner main body 10, and collects dust sucked by the drive of the electric blower 14. A dust collecting unit 20 is provided, and the dust collecting unit 20 is provided with a centrifugal separation unit 100 for separating dust, a filter 70 provided on the downstream side of the centrifugal separation unit 100 and collecting dust, and a centrifugal separation unit 100. It is characterized by having a filter support portion 80 that supports the filter 70 from the upstream side in a state of being separated from the exhaust port of the above.

The vacuum cleaner 1 of the present embodiment includes a filter support portion 80 on the downstream side of the centrifugal separation portion 100 of the dust collecting portion 20. Further, the filter support portion 80 is supposed to support the filter 70 in a state of being separated from the exhaust port of the centrifuge portion 100, and can suppress the blockage of the exhaust port and the accompanying decrease in suction capacity. Therefore, according to the above-described configuration, the vacuum cleaner 1 provided with the dust collecting unit 20 capable of effectively suppressing the decrease in suction capacity due to the exhaust port of the centrifuge unit 100 being blocked by the filter 70 is provided. Can be provided.

(1-2) In the vacuum cleaner 1 described above, the filter support portion 80 is preferably characterized by having one or more support openings 154 for discharging air to the downstream side.

According to such a configuration, the air discharged from the centrifugal separation unit 100 can be smoothly discharged through the support opening 154. As a result, it is possible to effectively suppress an increase in the exhaust resistance of the centrifuge unit 100 and a decrease in the suction capacity.

(1-3) In the vacuum cleaner 1 described above, the centrifuge portion 100 has a lid portion 106 provided with an exhaust port, and the lid portion 106 supports the filter support portion 80 from the upstream side. It is good to have.

According to such a configuration, the filter support portion 80 can be reliably supported by the support portion 108 provided on the lid portion 106.

(1-4) In the vacuum cleaner 1 described above, the dust collecting portion 20 preferably has a cover portion 90 that holds the filter 70 in combination with the filter supporting portion 80.

According to such a configuration, the filter 70 can be held by the combination of the filter support portion 80 and the cover portion 90. As a result, it is not necessary to separately provide a member for holding the filter 70, which contributes to simplification of the device configuration.

Here, when a suction tool used in a conventionally known vacuum cleaner is examined, there is a prior art such as that disclosed in Japanese Patent Application Laid-Open No. 1-175821. This patent document includes an air turbine that is rotated by an intake air flow, a rotary floor brush that is connected to the air turbine via a belt reducer, a bearing on the belt pulley side of the air turbine, and a rotary floor brush. A floor nozzle for a vacuum cleaner is disclosed in which a bearing on the belt pulley side is integrally connected by a housing portion and the housing portion is vibration-proof supported by the floor nozzle body.

However, in the above invention according to the prior art, since the shaft length between the air turbine and the bearing is long, the shaft bends due to the rotation of the air turbine, and the shaft of the air turbine and the shaft of the rotating floor brush There is a problem that the stability of the interval is low.

Therefore, in the present embodiment, it is an object of the present invention to provide a suction port body capable of improving the stability of the distance between the drive machine and the rotary cleaning body. Moreover, as an example of such a thing, the suction tool 40 was illustrated.

(2-1) The suction tool 40 of the present embodiment provided to solve the above-mentioned problems is a case body 42 having a suction port 43 capable of sucking dust, and a rotatably provided rotation on the case body 42. A drive machine 210 having a cleaning body 46, a rotating shaft, and a driving machine main body 210a provided with the rotating shaft, and generating a driving force of the rotating cleaning body 46, an output side pulley 214 provided on the rotating shaft, and rotation. A cleaning body that includes a driven side pulley 216 connected to the cleaning body 46 and a power transmitting body 212 that is hung between the output side pulley 214 and the driven side pulley 216, and transmits a driving force from the drive machine 210 to the rotary cleaning body 46. It is characterized by including a drive mechanism 48 and a holding member 220 that supports the drive machine main body 210a and rotatably supports the driven side pulley 216.

The suction tool 40 described above includes a holding member 220, and can support the driving machine main body 210a of the driving machine 210 and rotatably support the driven side pulley 216. With such a configuration, the suction tool 40 can improve the stability of the distance between the drive machine 210 and the rotary cleaning body 46.

(2-2) The suction tool 40 described above has a receiving portion 222d formed by cutting out an edge portion of the holding member 220, and the receiving portion 222d supports the drive machine main body 210a. It is good to be.

According to such a configuration, the drive machine 210 can be attached to the holding member 220 in a state where the power transmission body 212 is hung on the driven side pulley 216 and the output side pulley 214. A configuration is conceivable in which the drive unit is placed on the case body and then the power transmission body is hung on the driven side pulley and the output side pulley. In such a configuration, the output side pulley and the driven side pulley are hung by the tension of the power transmission body. It may be difficult to hang a power transmitter. However, according to the above configuration in the present embodiment, it is possible to reduce the troublesomeness such as difficulty in hanging.

(2-3) In the suction tool 40 described above, the case body 42 is a lower case 42a (first case body) located on the cleaning surface side and an upper case 42b (second case body) attached to the lower case 42a. The drive machine main body 210a is supported between the first receiving portion 222d as the receiving portion 222d of the holding member 220 and the second receiving portion (upper holding member 224) of the upper case 42b. good.

With such a configuration, the drive machine main body 210a of the drive machine 210 can be firmly supported by the first receiving portion 222d and the upper holding member 224 (second receiving portion). As a result, the suction tool 40 can improve the stability of the distance between the drive machine 210 and the rotary cleaning body 46.

(2-4) In the suction tool 40 described above, the second receiving portion 222d is an extending portion extending from the upper case 42b toward the lower case 42a side, or an upper holding member 224 forming an inner wall of the upper case 42b. Is good.

According to such a configuration, by attaching the upper case 42b to the lower case 42a, the driving machine main body 210a of the driving machine 210 is firmly attached by the first receiving portion 222d and the upper holding member 224 (second receiving portion). Can be supported. Therefore, according to the above-described configuration, it is possible to improve the stability of the distance between the drive machine 210 and the rotary cleaning body 46 while further simplifying the mounting work of the drive machine main body 210a of the drive machine 210.

The present invention is not limited to those shown in the above-described embodiments and the like, and it is easily understood by those skilled in the art that there may be other embodiments from the teaching and spirit within the scope of claims. Let's do it. Hereinafter, a modified example of the embodiment will be described in detail with reference to the drawings. In the following description, the same reference numerals as those of the above-described embodiments will be given, and detailed description thereof will be omitted.

≪First modification example≫
Here, a vacuum cleaner system such as that disclosed in Japanese Patent Application Laid-Open No. 2019-162232 is provided as a conventionally known one. This vacuum cleaner system is supposed to include a vacuum cleaner and a support device for supporting the vacuum cleaner. Further, the vacuum cleaner provided in this vacuum cleaner system includes a main body having a handle, a suction tool for sucking dust, a pipe body connecting the main body and the suction tool, and the support device is a support. It is supposed to be equipped with. This vacuum cleaner system is configured such that the front side of the suction tool is arranged at a position closer to the support than the rear side in a state where the vacuum cleaner is supported by the support device.

However, if the support device supports the main body of the vacuum cleaner as in the conventional vacuum cleaner system described above, there is a problem that the support device becomes large.

The vacuum cleaner unit 300 of the first modification provided to solve such a problem is as follows, and as a specific example thereof, the one having the configuration shown in FIGS. 17 to 20 is provided. Then it is good.

(3-1) The vacuum cleaner unit 300 of the first modification includes a vacuum cleaner main body 10 having an electric blower 14, a suction tool 40 having a suction port 43 for sucking dust, and the vacuum cleaner main body 10. The vacuum cleaner support device 330 includes a pipe portion 30 connecting between the suction tool 40 and the vacuum cleaner support device 330, and the vacuum cleaner support device 330 includes a mounting portion 340 for mounting the suction tool 40 and the pipe. It is characterized by having a support portion 350 that supports the portion 30 and engages with the pipe portion 30.

According to such a configuration, the vacuum cleaner 1 can be supported by arranging the suction tool 40 on the mounting portion 340 and engaging the pipe portion 30 and the support column portion 350. Therefore, according to the above-described configuration, it is not necessary to use a large vacuum cleaner support device 330, and the vacuum cleaner unit 300 having a compact configuration can be provided.

(3-2) In the vacuum cleaner unit 300 described above, the pipe portion 30 has an engaged portion 310 with which the strut portion 350 is engaged, and the strut portion 350 is attached to the engaged portion 310. The engaged portion 310 has an engaging portion 352 to be engaged, and the engaged portion 310 has a hollow receiving portion 312 having a first opening 314 opened toward the suction tool 40 side, and the engaging portion 312 is provided. The portion 352 may have a first protrusion 354 that is inserted into the receiving portion 312 via the first opening 314.

According to such a configuration, the first protrusion 354 forming the engaging portion 352 in the strut portion 350 is connected to the receiving portion 312 via the first opening 314 of the receiving portion 312 forming the engaged portion 310 in the pipe portion 30. By inserting and engaging, the pipe portion 30 can be supported by the vacuum cleaner support device 330.

(3-3) In the vacuum cleaner unit 300 described above, the engaging portion 352 has a second protruding portion 356 provided at a position facing the first protruding portion 354, and the receiving portion 312 has a receiving portion 312. It is preferable that the engaging portion 352 and the engaged portion 310 are inserted between the first protruding portion 354 and the second protruding portion 356 in an engaged state.

According to such a configuration, in the engaged state between the engaging portion 352 and the engaged portion 310, the engaging portion 352 is inserted between the first protruding portion 354 and the second protruding portion 356, and the vacuum cleaner The pipe portion 30 can be supported by the support device 330. Therefore, the vacuum cleaner unit 300 can support the vacuum cleaner support device 330 with the pipe portion 30 between the first protrusion 354 and the second protrusion 356 with high positioning accuracy.

(3-4) In the vacuum cleaner unit 300 described above, the receiving portion 312 has a second opening portion 316 on the side facing the strut portion 350, and the engaging portion 352 is the first protruding portion. It has a third protrusion 358 arranged so as to intersect with 354, and the third protrusion 358 is on the suction tool 40 side in an engaged state between the engaging portion 352 and the engaged portion 310. It is preferable that the second opening 316 is inserted into the second opening 316 to support the edge of the second opening 316.

According to such a 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 vacuum cleaner unit 300 can support the vacuum cleaner support device 330 with the pipe portion 30 within the range of the opening width of the second opening 316 with high positioning accuracy.

[Specific examples of the first modification]
Hereinafter, the vacuum cleaner unit 300 of the first modification will be described in detail with reference to the drawings. Since the vacuum cleaner unit 300 generally has the same configuration as the vacuum cleaner 1 according to the above embodiment, the same configuration is designated by the same reference numerals, and detailed description thereof will be omitted.

The vacuum cleaner unit 300 includes a vacuum cleaner support device 330 in addition to the vacuum cleaner main body 10, the pipe portion 30, and the suction tool 40. The vacuum cleaner main body 10 is provided with an electric blower 14 like the above-mentioned vacuum cleaner 1. Further, the suction tool 40 is provided with a suction port 43 for sucking dust, similarly to the vacuum cleaner 1 described above.

Similar to the vacuum cleaner 1 described above, the pipe portion 30 is mainly composed of a pipe connecting the vacuum cleaner main body 10 and the suction tool 40. The pipe portion 30 has a configuration different from that of the vacuum cleaner 1 described above in that it has an engaged portion 310 with which the strut portion 350 provided in the vacuum cleaner support device 330, which will be described in detail later, is engaged.

As shown in FIG. 20, the engaged portion 310 is a portion that engages with the engaging portion 352 provided in the vacuum cleaner support device 330, which will be described in detail later. The engaged portion 310 may be provided integrally with the pipe forming the pipe portion 30, but in this modification, the pipe cover 320 (of the pipe portion 30) attached to the pipe forming the pipe portion 30. Of these, the pipe cover on the suction tool 40 side) is provided with a receiving portion 312. The receiving portion 312 is a hollow portion formed so as to bulge outward in the radial direction on the outer peripheral surface of the pipe portion 30.

The receiving portion 312 includes a first opening 314 that opens toward the suction tool 40 side. Further, the receiving portion 312 has a second opening portion 316 formed so as to open on the back surface side. Specifically, the second opening 316 is installed on the vacuum cleaner support device 330, which will be described in detail later, on the surface (contact surface 318) of the vacuum cleaner support device 330 on the side facing the support column 350. It is formed to open.

As shown in FIG. 17, the vacuum cleaner support device 330 supports the vacuum cleaner main body 10 with the pipe portion 30 and the suction tool 40 attached. As shown in FIGS. 17 to 19, the vacuum cleaner support device 330 has a mounting portion 340 and a strut portion 350.

The mounting portion 340 is a portion that serves as a pedestal for mounting the suction tool 40. The mounting portion 340 has a stopper 342 on the front side. The stopper 342 is formed so as to project upward from the top surface side of the mounting portion 340. Further, the stopper 342 is formed so as to extend in the width direction of the mounting portion 340. Therefore, the stopper 342 can be positioned so that the suction tool 40 arranged on the top surface of the mounting portion 340 does not move beyond the stopper 342 to the front side.

The strut portion 350 is a strut-like portion erected in the vertical direction on the back surface side (opposite side of the stopper 342) of the mounting portion 340. The strut portion 350 is a portion that engages with and supports the pipe portion 30 connected to the suction tool 40 arranged in the mounting portion 340. Specifically, the strut portion 350 can support the pipe portion 30 by engaging the engaged portion 310 of the pipe portion 30 with the engaging portion 352 provided on the upper end side.

As shown in FIG. 19, 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 provided on the front side of the support column 350 so as to project from the lower side to the upper side. The first protrusion 354 is a portion inserted into the receiving portion 312 via the first opening 314 provided in the pipe portion 30 described above. The second protrusion 356 is inside the space 360 opened toward the front side and the top surface side on the upper end side of the support column 350, and faces the first protrusion 354 at a predetermined interval. It is provided as follows. The third protrusion 358 is a protrusion-shaped portion arranged so as to intersect the first protrusion 354. The third protrusion 358 is arranged inside the space 360 like the second protrusion 356. Further, the first protrusion 354 and the third protrusion 358 may be separated from each other, but in the present embodiment, the third protrusion 358 is the first protrusion 354 in the intermediate portion in the width direction of the first protrusion 354. Is connected with. Therefore, the first protrusion 354 and the third protrusion 358 are formed in a substantially "T" shape in a plan view. Further, the fourth protrusion 359 is provided so as to project toward the space 360 on the surface of the first protrusion 354 facing the space 360 side. The fourth protrusion 359 is provided at a position facing the second protrusion 356.

The space 360 is a portion where the second protrusion 356 and the third protrusion 358 are arranged. A chamfered portion 360a chamfered in a tapered shape or the like is provided on the upper end side edge of the space 360 in order to easily attract the receiving portion 312 provided in the pipe portion 30. Further, in the space 360, the opening width on the front side is equal to or larger than the width of the receiving portion 312 provided in the pipe portion 30. Further, the above-mentioned first protrusion 354 is formed so as to rise from the lower side to the upper side at a position slightly protruding to the front side from the opening portion on the front side of the space 360. Further, the width of the third protrusion 358 described above is equal to or less than the width of the second opening 316 formed on the contact surface 318 of the receiving portion 312 in the pipe portion 30. Further, the second protrusion 356 is provided on both sides in the width direction with respect to the third protrusion 358. Therefore, by inserting the receiving portion 312 in the pipe portion 30 toward the space 360, the contact surface 318 of the receiving portion 312 enters between the first protrusion 354 and the second protrusion 356, and at the same time, the contact surface 318 is inserted. The third protrusion 358 enters the second opening 316 provided on the contact surface 318. As a result, the engaged portion 310 provided on the pipe portion 30 side and the engaging portion 352 provided on the strut portion 350 side are in an engaged state.

In the above modified example, an example 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 engagement portion 352 is shown. However, the present invention is not limited to this, and other protrusions (second protrusion 356, third protrusion) other than the first protrusion 354, such as those provided with only the first protrusion 354, are not limited to this. Of the portion 358 and the fourth protrusion 359), one or a plurality of protrusions may not be provided.

≪Second modification≫
Here, it is preferable that the vacuum cleaner 1 of the above-described embodiment has a configuration capable of notifying what kind of dust collection state it is in by a notification method such as light emission. As a result, cleaning can be performed using the notification information as a guide, which can improve convenience for the user. Therefore, it is preferable that the vacuum cleaner 1 is provided with a notification means for notifying the dust collection state. Further, in the above-mentioned vacuum cleaner 1, as an example of a configuration capable of notifying the dust collecting state, the dust collecting unit 20 is configured by a transparent, translucent or smoked case, and the dust collecting unit 20 emits light. It is conceivable to provide a light emitting device for causing the dust to be generated, and to change the light emitting color and the light emitting state of the dust collecting unit 20 according to the dust collecting state. In the case of such a configuration, it is desired that the dust collecting unit 20 is configured to emit light with good visibility.

The second modified example vacuum cleaner 1 provided to solve such a problem is as follows. Further, as a specific example, the vacuum cleaner 1 of this modified example may be, for example, as shown in FIGS. 21 to 23.

(4-1) The vacuum cleaner 1 of the present invention includes a vacuum cleaner main body 10 having an electric blower 14, a dust collecting unit 20 that can be attached to and detached from the vacuum cleaner main body 10, and an air passage that communicates with the dust collecting unit 20. The air passage component 400, the dust detection unit 410 that detects dust passing through the air passage 402, and the light emitting unit 420 that is controlled to emit light by being detected by the dust detection unit 410, It is preferable that the light guide unit 430 for guiding the light emitted from the light emitting unit 420 is provided, and the light guided by the light guide unit 430 passes through the dust collecting unit 20.

According to such a configuration, the light emitted by the light emitting unit 420 in response to the detection by the dust detecting unit 410 can be guided through the light guide unit 430 and transmitted through the dust collecting unit 20. As a result, the dust collecting unit 20 can emit light with good visibility, and the dust collecting state can be appropriately notified.

(4-2) In the vacuum cleaner 1 of the present invention, the light emitting unit 420 is provided in the air passage component 400, and the light guide unit 430 is connected from the dust collector 20 to the air passage component 400. It is good if it extends toward you.

According to such a configuration, the dust collecting unit 20 can be made to emit light more reliably and with good visibility.

(4-3) In the vacuum cleaner 1 of the present invention, the light emitting portion 420 is arranged in a recess 404 provided in the air passage constituent portion 400, and at least an end portion of the light guide portion 430 is the recess 404. It should be inserted in.

According to such a configuration, the dust collecting unit 20 can be made to emit light more reliably and with good visibility. Further, preferably, if at least one end of the light guide portion 430 is locked in the recess 404 at least one of the vertical direction and the horizontal direction, the dust collecting portion 20 can be arranged with high positioning accuracy.

(4-4) In the vacuum cleaner 1 of the present invention, the dust collector 20 is an inner container 54 that creates a swirling air flow between the outer container 52 having an inflow port into which air flows in and the outer container 52. It is preferable that the light emitting unit 420 has (centrifugation outer cylinder 102) and is arranged at a position not facing the inner container 54 (centrifugation outer cylinder 102).

According to such a configuration, it is possible to suppress the progress of the light emitted from the light emitting unit 420 from being hindered by the inner container 54, and to make the dust collecting unit 20 emit light with good visibility.

[Specific example of the second modification]
Hereinafter, the vacuum cleaner 1 of the second modification will be described in detail with reference to the drawings. Since the vacuum cleaner 1 of the present modification generally has the same configuration as that shown in the above embodiment, the same configuration is designated by the same reference numerals, and detailed description thereof will be omitted.

The electric vacuum cleaner 1 includes a light emitting unit 420 and a light guide unit 430 in addition to the vacuum cleaner main body 10 and the dust collecting unit 20 (dust collecting device). Further, although the description is omitted in the above embodiment, the vacuum cleaner 1 includes an air passage component 400. The vacuum cleaner main body 10 includes an electric blower 14 like the above-mentioned vacuum cleaner 1. An exhaust port 10x for exhausting the exhaust gas of the electric blower 14 is provided on the side surface side of the vacuum cleaner main body 10 (see FIG. 22B). Specifically, it is arranged on the side closer to the battery accommodating portion 10d in the front-rear direction of the vacuum cleaner main body 10. Further, the dust collecting unit 20 is detachable from the vacuum cleaner main body 10 and has an outer container 52 and an inner container 54 (see FIG. 4 and the like). The outer container 52 is a container having an inflow port into which air flows. The inner container 54 (centrifugal separation outer cylinder 102) is a container that is arranged inside the outer container 52 and creates a swirling air flow with the outer container 52. Since these configurations are the same as those described in the above embodiment, detailed description thereof will be omitted.

The vacuum cleaner 1 includes an air passage component 400. The air passage constituent unit 400 has an air passage constituent cylinder 406 that constitutes an air passage 402 communicating with the dust collecting portion 20. The air passage constituent cylinder 406 connects the pipe connecting portion 22 to which the pipe portion 30 is connected to the dust collecting portion side opening 403 connected to the first inflow port 68 of the dust collecting portion 20 so that air can pass through. It is formed as a hollow air passage 402. The air passage configuration cylinder 406 can be appropriately configured as long as it constitutes the air passage 402. In this modification, as shown in FIG. 23, a tubular middle cylinder 408 is formed inside the air passage constituent cylinder 406 formed by combining the semi-cylindrical front cover portion 406a and the semi-cylindrical rear cover portion 406b. It is configured to be housed, and an air passage 402 is formed inside the middle cylinder 408. The air passage constituent cylinder 406 includes a dust detection unit 410 (see FIG. 21) and a light emitting unit 420.

The dust detection unit 410 includes a sensor that detects dust contained in the air passing through the air passage 402. In the present embodiment, the dust detection unit 410 is provided in the air passage constituent cylinder 406, but is not limited thereto, and may include at least one of the pipe portion 30 and the suction tool 40 in addition to the air passage constituent cylinder 4. It suffices if it is arranged in the air passage component 400. Further, the light emitting unit 420 may change the light emitting amount according to the dust amount detected by the dust detecting unit 410, or the light emitting color may change according to the dust amount detected by the dust detecting unit 410. It may change. In this embodiment, it is a red and green light emitting diode (LED). A plurality of colors can be created by mounting a light emitting diode that emits a plurality of colors and adjusting the brightness of each light emitting diode. The light emitting unit 420 is controlled to emit light based on the detection result by the dust detection unit 410. The light emitting unit 420 is arranged in a recess 404 provided in the air passage constituent cylinder 406.

Specifically, as shown in FIG. 23, the air passage constituent cylinder 406, which forms a part of the air passage constituent portion 400, has two recesses 404 and 404 formed so as to extend in the vertical direction. The constituent cylinders 406 are provided at predetermined intervals in the circumferential direction. Further, in the middle cylinder 408 housed in the air passage constituent cylinder 406, rib-shaped light emitter arranging portions 408a and 408a extending in the vertical direction are provided at positions corresponding to the recesses 404 and 404. A plurality of LED light emitting elements 422 forming the light emitting unit 420 are arranged in the light emitting body arrangement units 408a and 408a so as to be arranged at predetermined intervals. Further, in the assembled state of the air passage constituent cylinder 406, the LED light emitting elements 422 (light emitting portion 420) arranged in the light emitting body arrangement portions 408a and 408a of the middle cylinder 408 are provided in the recess 404 of the air passage constituent cylinder 406. It is placed inside the 404. Further, the recesses 404 and 404 and the illuminant arranging portions 408a and 408a are provided at positions not facing the inner container 54 (centrifugal separation outer cylinder 102).

As shown in FIGS. 21 and 22A, the light guide portion 430 is provided on the outer peripheral surface of the outer container 52 forming the dust collecting portion 20. The light guide unit 430 is provided at a position corresponding to the recesses 404 and 404 described above in the mounted state of the dust collecting unit 20. In the present embodiment, since the two recesses 404 and 404 are provided, the light guide unit 430 is also provided at two positions corresponding to the recesses 404 and 404. The light guide unit 430 is for guiding the light emitted from the light emitting unit 420 to the dust collecting unit 20. The light guide unit 430 is formed so as to extend from the dust collecting unit 20 toward the air passage constituent cylinder 406 when the dust collecting unit 20 is attached. Further, in the mounted state of the dust collecting portion 20, at least the tip portion of the light guide portion 430 is inserted into the recess 404. As shown in FIG. 22 (a), by providing the diffusion unit 440 composed of protrusions and grooves on the peripheral portion of the dust collecting unit 20, the light emitted from the light emitting unit 420 can be diffused in the diffusion unit 440. can. Here, a diffusion portion 440 extending along the axial direction of the dust collecting portion 20 is shown as an example.

≪Third variant example≫
Here, as disclosed in Japanese Patent Application Laid-Open No. 2014-8302, an electric vacuum cleaner provided with a removable dust collector on the vacuum cleaner body is known. For example, the electric vacuum cleaner disclosed in Japanese Patent Application Laid-Open No. 2014-8302 is removable from the vacuum cleaner body, protrudes toward the vacuum cleaner body, and has an engaging hole formed in the vacuum cleaner body. It is supposed to be provided with a dust accommodating portion having a protruding portion inserted into the. In this vacuum cleaner, the mounting direction is the direction in which the protruding portion protrudes when the dust accommodating portion is mounted on the vacuum cleaner main body. Further, the dust accommodating portion is cleaned with the dust accommodating portion at the time of mounting so that the dust accommodating portion can be removed from the vacuum cleaner main body when the extraction direction from the vacuum cleaner main body is greater than 90 degrees with respect to the mounting direction. The positional relationship with the machine body is set. As described above, regarding the method for fixing the dust collector to the vacuum cleaner main body and the method for releasing the fixing of the dust collector to the vacuum cleaner main body, a canister type vacuum cleaner having a removable dust collector Various technologies are provided in the above, and the dust collector is fixed to the vacuum cleaner body so that the airtightness between the vacuum cleaner body and the dust collector is maintained.

However, in many vacuum cleaners such as the canister type vacuum cleaner disclosed in Japanese Patent Application Laid-Open No. 2014-8302, the vacuum cleaner body supports the entire bottom of the dust collector. In a canister type vacuum cleaner or the like of the prior art, such a configuration makes it difficult for the vacuum cleaner body and the dust collector to be misaligned, and reduces the airtightness between the vacuum cleaner body and the dust collector. I'm trying to suppress it. On the other hand, in a vertical vacuum cleaner or the like having a removable dust collector, the shape of the vacuum cleaner body is significantly different from that of a canister type vacuum cleaner. Therefore, depending on the type and shape of the vacuum cleaner, even if the same fixing method as the canister type vacuum cleaner disclosed in the above patent documents is adopted, the airtightness between the vacuum cleaner body and the dust collector can be maintained. There was a problem that it might not be possible to secure enough.

The vacuum cleaner 1 of the third modification provided to solve such a problem is as follows. The vacuum cleaner 1 of this modified example may be, for example, as shown in FIGS. 24 to 28.

(5-1) The vacuum cleaner 1 of this modified example is a vacuum cleaner main body 10 having a suction port 18 for sucking dust and a flow in which air flows from the suction port 18 by the operation of the electric blower 14. A dust collector 20 having an inlet (first flow inlet 68) and a dust collector discharge port 170 communicating with an intake port of the electric blower 14, and being detachable from the vacuum cleaner main body 10, and the vacuum cleaner main body 10 A dust collecting container including a locking structure 500 that can be released from the system with the dust collecting portion 20, and the dust collecting portion 20 has a bottom portion 58 and a side wall portion 59 erected with respect to the bottom portion 58. The locking structure 500 includes 50 and a cover 90 provided in the dust collecting container 50 and having the dust collecting discharge port 170, and the locking structure 500 is engaged between the cover 90 and the vacuum cleaner main body 10. A detachable first locking structure 510, a second locking structure 520 that can be engaged and disengaged between the dust collecting container 50 and the vacuum cleaner main body 10, and the dust collecting portion discharge port 170 in the cover portion 90. It is preferable that the third locking structure 530 that can be engaged with and disengaged between the edge of the vacuum cleaner and the vacuum cleaner main body 10 is included.

The electric vacuum cleaner 1 of this modified example has the above-mentioned first locking structure 510 and second engaging as a locking structure 500 which is a structural portion capable of engaging and disengaging between the vacuum cleaner main body 10 and the dust collecting portion 20. The structure including the stop structure 520 and the third locking structure 530 is adopted. In the vacuum cleaner 1 of this modified example, in addition to being able to engage and disengage between the cover portion 90 and the vacuum cleaner main body 10 by the first locking structure 510, the dust collecting container 50 and the dust collecting container 50 are provided by the second locking structure 520. It is possible to engage and disengage with the vacuum cleaner main body 10, and further, it is possible to engage and disengage between the edge of the dust collecting portion discharge port 170 of the cover portion 90 and the vacuum cleaner main body 10 by the third locking structure 530. .. As described above, the vacuum cleaner 1 of the present modification utilizes the first locking structure 510, the second locking structure 520, and the third locking structure 530 in combination to form the dust collector 20 and the vacuum cleaner main body. Since the 10 can be engaged and detached, the airtightness between the vacuum cleaner main body 10 and the dust collecting unit 20 can be sufficiently ensured.

(5-2) The electric vacuum cleaner 1 of the present modification includes an airtight member 540 for making the space between the vacuum cleaner main body 10 and the cover portion 90 airtight, and the airtight member 540 is the cover portion 90. Of these, the third locking structure 530 has a contact portion 542 that comes into contact with the contacted portion 178 outside the dust collecting portion discharge port 170, and the third locking structure 530 includes the contact portion 542 and the contacted portion 178. It is good to avoid.

According to such a configuration, the contact portion 542 of the airtight member 540 can come into contact with the contacted portion 178 of the cover portion 90 without the third locking structure 530 getting in the way. Therefore, in the vacuum cleaner 1 of the present modification, the airtightness between the vacuum cleaner main body 10 and the cover portion 90 can be sufficiently ensured by the airtight member 540.

(5-3) In the vacuum cleaner 1 of the present invention, the first member 532 of the third locking structure 530 as the vacuum cleaner main body 10 side is the collection of the vacuum cleaner main body 10 and the cover portion 90. The dust collecting portion 534 of the third locking structure 530 is provided with a hollow accommodating portion 534 having an opening 534a opened outward in a direction intersecting the direction facing the dust portion discharging port 170. The second member 536 as the portion 20 side has a protrusion 536a extending inward from the edge of the dust collecting portion discharge port 170 in the cover portion 90, and the protrusion 536a passes through the opening 534a and the accommodating portion 534. It is preferable that the second member 536 is locked to the first member 532 by being housed in the first member.

According to such a configuration, the dust collecting portion 20 can be mounted on the vacuum cleaner main body 10 with high positioning accuracy in both the circumferential direction and the axial direction by the third locking structure 530. As a result, the airtightness between the vacuum cleaner main body 10 and the dust collecting unit 20 can be further improved.

(5-4) In the vacuum cleaner 1 of the present invention, the first member 532 of the third locking structure 530 as the vacuum cleaner main body 10 side is the dust collecting portion 20 from the inside of the airtight member 540. The extension so as to project outward in the direction intersecting the opposite direction of the extension portion 534b extending toward the vacuum cleaner main body 10 and the dust collection portion discharge port 170 of the cover portion 90. It is preferable that the locking portion 534c is bent with respect to the portion 534b, and the locking portion 534c is locked to the edge of the dust collecting portion discharging port 170 in the covering portion 90.

According to such a configuration, the dust collecting portion 20 is positioned with respect to the vacuum cleaner main body 10 by the locking structure formed by the locking portion 534c forming the third locking structure 530 and the edge of the dust collecting portion discharging port 170. It can be installed with high accuracy. As a result, the airtightness between the vacuum cleaner main body 10 and the dust collecting unit 20 can be further improved.

(5-5) The vacuum cleaner 1 of the present invention includes a blower cover body 630 for accommodating the electric blower 14, and the first member 532 is provided integrally with the blower cover body 630. good.

According to such a configuration, the number of parts can be reduced, and the first member 532 can be reliably provided in the vacuum cleaner main body 10 in which the electric blower 14 is incorporated.

(5-6) The vacuum cleaner 1 of the present invention includes a cover fixing member 640 for positioning the blower cover body 630 in the vacuum cleaner main body 10, and the airtight member 540 is the cover fixing member 640. It is preferable that it is fixed between the blower cover body 630 and the blower cover body 630.

According to such a configuration, the airtight member 540 can be attached to the vacuum cleaner main body 10 side with high positioning accuracy. As a result, the vacuum cleaner main body 10 and the dust collecting unit 20 can be reliably and airtightly connected by the airtight member 540.

[Specific example of the third modification]
Hereinafter, the vacuum cleaner 1 of the third modification will be described in detail with reference to the drawings. Since the vacuum cleaner 1 of the present modification generally has the same configuration as that shown in the above embodiment, the same configuration is designated by the same reference numerals, and detailed description thereof will be omitted.

The electric vacuum cleaner 1 of this modified example includes a locking structure 500 in addition to the vacuum cleaner main body 10 and the dust collecting unit 20 (dust collecting device). The vacuum cleaner main body 10 is provided with an electric blower 14 like the above-mentioned vacuum cleaner 1. The vacuum cleaner main body 10 has a suction port 18 for sucking dust by the operation of the electric blower 14. Further, the vacuum cleaner main body 10 includes a blower cover body 630 for accommodating the electric blower 14.

The dust collecting unit 20 is attached to and detached from the vacuum cleaner main body 10. As shown in FIG. 26 and the like, the dust collecting unit 20 has a dust collecting container 50, a first inflow port 68, and a dust collecting unit discharge port 170. Further, the dust collecting container 50 has a bottom portion 58, a side wall portion 59, and a cover portion 90. The bottom portion 58 is a portion forming the bottom of the dust collecting container 50. Further, the side wall portion 59 is a portion forming a peripheral surface of the dust collecting container 50. The side wall portion 59 is erected with respect to the bottom portion 58. The cover portion 90 is provided on the top surface side of the dust collecting container 50. The cover portion 90 has a dust collecting portion discharging port 170 at a substantially central portion. Further, the cover portion 90 has a contacted portion 178 to which the contact portion 542 of the airtight member 540 comes into contact. At least a part of the contacted portion 178 is formed in a planar, flat or concave shape on the outer peripheral side with respect to the dust collecting portion discharging port 170. Further, the dust collecting unit discharge port 170 is formed so as to communicate with the intake port of the electric blower 14 when the dust collecting unit 20 is connected to the vacuum cleaner main body 10. Further, the dust collecting unit 20 is provided with a first inflow port 68 so that air from the suction port 18 can flow in.

An airtight member 540 is arranged at the connection portion between the vacuum cleaner main body 10 and the dust collecting portion 20 described above in order to ensure airtightness. The airtight member 540 can be arranged on either one or both of the vacuum cleaner main body 10 and the dust collecting unit 20, but in this modified example, as shown in FIG. 25, the airtight member is attached to the vacuum cleaner main body 10. 540 is provided. The airtight member 540 is fixed between the cover fixing member 640 for positioning the blower cover body 630 in the vacuum cleaner main body 10 and the blower cover body 630. Specifically, as shown in FIG. 25 (b), the airtight member 540 is bent in a substantially "S" shape in cross section. As a result, the inverted "U" -shaped locked portion 541 and the "U" -shaped contact portion 542 are formed so as to be continuous vertically. Further, on the bottom side (intake cover 630c side) of the blower cover body 630, a flange-shaped locking portion 630x that protrudes outward in the radial direction is provided. The airtight member 540 is attached to the blower cover body 630 by engaging the locked portion 541 with the locking portion 630x. Further, when the airtight member 540 is attached to the blower cover body 630, the contact portion 542 is in a state of protruding from the vacuum cleaner main body 10 side toward the dust collecting portion 20 side. The contact portion 542 is provided at a position where it can come into contact with the contacted portion 178 of the cover portion 90 when the dust collecting portion 20 is attached.

The locking structure 500 is a structural portion that can be engaged and disengaged between the vacuum cleaner main body 10 and the dust collecting portion 20. As shown in FIG. 24, the locking structure 500 is assumed to include a first locking structure 510, a second locking structure 520, and a third locking structure 530.

The first locking structure 510 is capable of engaging and disengaging between the cover portion 90 and the vacuum cleaner main body 10. The first locking structure 510 is composed of a combination of the locking portion 20c and the recess 10b described with reference to FIGS. 2 and 4 in the above embodiment. More specifically, as shown in FIGS. 2 and 4, a lock portion 20c is provided at a position on the top surface side of the dust collecting portion 20 and on the front side in the assembled state of the vacuum cleaner 1. There is. The lock portion 20c projects upward. Further, on the front side of the vacuum cleaner main body 10, a recess 10b formed so as to open downward is provided. The first locking structure 510 is formed by fitting the lock portion 20c into the recess 10b, and fixes the dust collecting portion 20 to the vacuum cleaner main body 10 side on the front side of the vacuum cleaner 1.

The second locking structure 520 is removable between the dust collecting container 50 and the vacuum cleaner main body 10. Similar to the first locking structure 510, the second locking structure 520 has been described with reference to FIGS. 2 and 4 in the above embodiment, and is composed of the concave portion 20b and the convex portion 10a. Specifically, as shown in FIGS. 2 and 4, a recess 20b is provided in the bottom portion 58 of the dust collecting portion 20. Further, as shown in FIG. 2, in the vacuum cleaner main body 10, a convex portion 10a is provided at a portion where the back surface of the dust collecting portion 20 contacts. The second locking structure 520 collects dust with respect to the vacuum cleaner main 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 main body 10 side. The container 50 can be locked.

In this modification, the locking structure 500 includes a third locking structure 530 in addition to the first locking structure 510 and the second locking structure 520 described above. The third locking structure 530 is capable of engaging and disengaging between the edge of the dust collecting portion discharge port 170 provided in the cover portion 90 on the top surface side of the dust collecting portion 20 and the vacuum cleaner main body 10. be. The third locking structure 530 is arranged so as to avoid the contact portion 542 and the contacted portion 178 so as not to hinder the formation of the airtight structure by the airtight member 540 described above. The third locking structure 530 is composed of a combination of the first member 532 and the second member 536.

As shown in FIG. 25, the first member 532 is a member provided on the vacuum cleaner main body 10 side. The first member 532 is provided integrally with the blower cover body 630 on the center side of the airtight member 540. Further, the first member 532 has an accommodating portion 534. The accommodating portion 534 is hollow with an opening 534a. Further, the accommodating portion 534 has an opening 534a. Since the accommodating portion 534 has an opening 534a, the accommodating portion 534 intersects with respect to the facing direction (vertical direction in the illustrated example) of the vacuum cleaner main body 10 and the dust collecting portion discharging port 170 of the cover portion 90 (collecting in the present embodiment). It is open toward the outside (in the radial direction of the dust portion 20).

As shown in FIG. 26, the second member 536 is a member provided on the dust collecting portion 20 side. The second member 536 has a protrusion 536a. The protrusion 536a is formed so as to extend inward from the edge of the dust collecting portion discharging port 170 in the cover portion 90. Specifically, the protrusion 536a extends toward the center of the airtight member 540.

In the electric vacuum cleaner 1 of this modification, when the dust collecting portion 20 is attached to the vacuum cleaner main body 10, first, the convex portion 10a provided on the vacuum cleaner main body 10 side is provided on the dust collecting portion 20 side. It is inserted into the recess 20b to form a second locking structure 520. After that, the dust collecting portion 20 is rotated so that the first inflow port 68 approaches the pipe connecting portion 22 with the convex portion 10a as a fulcrum. As a result, the lock portion 20c provided on the dust collecting portion 20 side is fitted into the recess 10b provided on the vacuum cleaner main body 10 side to form the first locking structure 510. Further, by rotating the dust collecting portion 20 with the convex portion 10a as a fulcrum, the protrusion 536a of the second member 536 is accommodated in the accommodating portion 534 through the opening 534a of the first member 532, and the second member 536 becomes the second member. It is locked to one member 532 to form a third locking structure 530. Regarding the locking between the first member 532 and the second member 536, specifically, both ends of the protrusion 536a in the circumferential direction are regulated in the accommodating portion 534, so that the dust collecting portion 20 is regulated with respect to the vacuum cleaner main body 10. Is positioned in the circumferential direction, and the upper surface and the lower surface of the protrusion 536a are regulated in the accommodating portion 534, so that the dust collecting portion 20 is positioned in the axial direction with respect to the vacuum cleaner main body 10.
Here, as shown in FIG. 25B, the third locking structure 530 is arranged so as to avoid the contact portion 542 and the contacted portion 178 so as not to hinder the formation of the airtight structure by the airtight member 540. NS. Specifically, the airtight member 540 forms an airtight structure by abutting the abutting portion 542 with the abutted portion 178. On the other hand, the third locking structure 530 is on the dust collecting portion 20 side with respect to the first member 532 (accommodating portion 534) provided so as to project downward from the blower cover body 630 on the vacuum cleaner main body 10 side. It is formed by engaging the second member 536 (projection 536a) provided in the above. The first member 532 (accommodating portion 534) and the second member 536 (projection 536a) are engaged at positions separated from the abutting portion 542 and the abutted portion 178 in the radial direction (center side), respectively. Therefore, the third locking structure 530 is formed so as not to hinder the formation of the airtight structure by the airtight member 540. In this way, in the vacuum cleaner 1, the dust collecting portion 20 is directed to the vacuum cleaner main body 10 by the locking structure 500 including the first locking structure 510, the second locking structure 520, and the third locking structure 530. It will be in a state of being airtightly attached.

Further, as shown in FIG. 27, in this modified example, a convex portion 570 is provided at a portion (rear surface side) of the dust collecting portion 20 that comes into contact with the vacuum cleaner main body 10. Further, in the vacuum cleaner main body 10, a concave portion 572 is provided at a position corresponding to the convex portion 570 provided in the dust collecting portion 20. In the vacuum cleaner 1, when the dust collecting portion 20 is attached to the vacuum cleaner main body 10, the convex portion 570 is fitted into the concave portion 572. Therefore, in the vacuum cleaner 1, the dust collecting portion 20 can be mounted on the vacuum cleaner main body 10 with high positioning accuracy even by the fitting structure composed of the convex portion 570 and the concave portion 572.

The above-mentioned third modification is only an example of the vacuum cleaner 1 of the present invention, and it is possible to make a part or all of the configurations different without departing from the gist of the present invention. For example, instead of forming the third locking structure 530 as described above, as shown in FIG. 28, the first member 532a on the vacuum cleaner main body 10 side is attached from the airtight member 540 and the contacted portion 178. The extension portion 534b extending from the inside toward the dust collecting portion 20 and the direction in which the vacuum cleaner main body 10 and the dust collecting portion discharging port 170 of the cover portion 90 intersect with each other so as to project outward. The third locking structure 530 is provided with a locking portion 534c bent with respect to the extending portion 534b, and the locking portion 534c is locked to the edge of the dust collecting portion discharging port 170 in the cover portion 90. May be configured. The configuration of the edge of the dust collecting portion discharge port 170 in the cover portion 90 to which the locking portion 534c is locked can be realized even if the accommodating portion has an opening on the inner side. Further, the locking portion 534c may be locked in the recess provided on the lower surface of the edge of the dust collecting portion discharging port 170 in the cover portion 90.

≪Other variants≫
The present invention is not limited to those shown as the above-described embodiments and modifications, and other modifications can be adopted from the teaching and spirit within the scope of the claims. Hereinafter, a specific description will be given.

<< Modification example of filter support portion 80 >>
In the above embodiment, a lid portion 106 for closing the centrifuge portion 100 on the upper end side is provided on the top surface side of the dust collecting portion 20, and the filter support portion 80 is provided by the central support rib 140 provided at the substantially central portion thereof. Although the supporting configurations have been exemplified, the present invention is not limited thereto. For example, as shown in FIG. 29, the one corresponding to the central support rib 140 may not be provided. In this case, for example, as shown in FIG. 29, it is preferable to provide a support rib 600 for supporting the filter support portion 80. The location where the support rib 600 is provided, the quantity and shape of the support rib 600, and the like can be appropriately changed. The support rib 600 may be formed integrally with the lid portion 106 or the filter support portion 80, or may be formed as a separate member from the lid portion 106 and the filter support portion 80. In the illustrated example, the support rib 600 is integrally formed with the filter support portion 80. Further, in the illustrated example, the support rib 600 includes a rib leg portion 600a formed so as to reach the lid portion 106 from the circumferential connecting portion 160, and a rib fixing portion 600b bent with respect to the rib leg portion 600a. It is supposed to be. Further, although the support rib 600 is fixed by attaching the rib fixing portion 600b to the lid portion 106 using a fixing tool 602 such as a screw, the support rib 600 may be integrated with the lid portion 106 by welding. As a result, the filter support portion 80 can be reliably supported.

<< Modification example of the configuration of the electric blower 14 >>
Although not particularly mentioned in the above embodiment, as shown in FIGS. 30 and 31, it is preferable that the electric blower 14 has a fan motor 632 built in the blower cover body 630. Further, as shown in the illustrated example, when the fan motor 632 has a fan leg portion 634 protruding outward in the radial direction, a receiving portion 636 for receiving the fan leg portion 634 is provided on the blower cover body 630. It is preferable that the elastic member 638 is interposed between the receiving portion 636 and the fan leg portion 634. Further, it is preferable that the blower cover body 630 is composed of the first cover 630a and the second cover 630b, and the receiving portion 636 is formed by combining the first cover 630a and the second cover 630b by an engaging structure. With such a configuration, the fan motor 632 can be assembled to the blower cover body 630 by sandwiching the fan leg portion 634 and the elastic member 638 between the first cover 630a and the second cover 630b, and at the time of assembly. Workability is improved.

Further, the electric blower 14 can be assembled to the vacuum cleaner main body 10 by an appropriate configuration, but can be assembled by using the cover fixing member 640 as shown in FIGS. 30 and 31, for example. .. Specifically, in the examples of FIGS. 30 and 31, the blower cover body 630 of the electric blower 14 is provided with a cover protruding portion 642 protruding outward in the radial direction on the lower end side. On the other hand, the cover fixing member 640 is an annular member whose inner diameter is larger than the outer diameter of the blower cover body 630. Further, the cover fixing member 640 has a fitting portion 644 into which the cover protruding portion 642 of the blower cover body 630 is fitted. In the electric blower 14, the blower cover body 630 and the cover fixing member 640 are integrated by fitting the cover protruding portion 642 to the fitting portion 644. In the illustrated example, the electric blower 14 has the cover fixing member 640 fixed to the vacuum cleaner main body 10 by using a fixing tool such as a screw. According to such a configuration, the electric blower 14 can be attached to the vacuum cleaner main body 10. In the illustrated example, the cover fixing member 640 is provided with a hole for forming the recess 10b forming the first locking structure 510 described above. According to such a configuration, the cover fixing member 640 can be utilized for assembling the electric blower 14 to the vacuum cleaner main body 10 and forming the recess 10b, and the number of parts can be suppressed.

≪Mop case and modified example with mop≫
As shown in FIGS. 32 to 34, for example, the above-mentioned vacuum cleaner 1 is preferably provided with a case 650 capable of accommodating other cleaning tools such as a mop 660 and a holding structure of the mop 660. When such a case 650 is provided, the case 650 may be attached and detached as appropriate so as not to hinder the use of the vacuum cleaner 1, and the arrangement of the case 650 may be optimized. Hereinafter, a case provided with a case 650 will be described as a modification of the vacuum cleaner 1.

In the example shown in FIG. 32, the case 650 is attached to the back side of the vacuum cleaner 1 from the lower end of the vacuum cleaner main body 10 to the pipe portion 30. The case 650 is a tubular one provided with a storage space 650a in which the top surface side is open and the bottom surface side is closed. The case 650 can be accommodated by inserting a long cleaning tool such as a mop 660 through the opening on the top surface side.

The case 650 can be attached to the pipe portion 30 by a clip 652 provided on the lower end side. The clip 652 can have an appropriate shape. In the illustrated example, since the pipe portion 30 has a substantially cylindrical shape, the clip 652 has a substantially “C” shape that can be fitted externally to the pipe portion 30. Further, as shown in FIG. 34, a rib 654 projecting outward is provided on the surface of the case 650 that contacts the pipe portion 30. In the illustrated example, a first engaging portion 30a to which the rib 654 can be engaged is provided at a position corresponding to the rib 654 in the pipe portion 30. The case 650 is held in a state in which the axial movement of the pipe portion 30 is restricted by the engaging structure formed by the rib 654 and the first engaging portion 30a.

The case 650 has a second engaging portion 656 on the upper end side. The second engaging portion 656 is a portion formed in a stepped manner on the upper end side of the case 650. On the other hand, on the back side of the vacuum cleaner main body 10, the position corresponding to the second engaging portion 656 has a hook-shaped cross-sectional shape, and the second engaging portion 656 can be inserted from below. A joint 10c is provided.

In the vacuum cleaner 1 shown in FIGS. 32 to 34, when the case 650 is attached, the second engaging portion 656 formed on the upper end side is inserted into and engaged with the third engaging portion 10c from below. After that, the clip 652 provided on the lower end side is engaged with the pipe portion 30. As a result, the case 650 is fixed on the upper end side and the lower end side. Further, when the case 650 is attached in this way, the rib 654 provided on the case 650 is in a state of being engaged with the first engaging portion 30a provided on the pipe portion 30. As a result, the case 650 is in a state where the movement of the pipe portion 30 is restricted in the axial direction. Further, the case 650 can be removed by the reverse procedure of the attachment.

Further, in the example shown in FIG. 32, the vacuum cleaner main body 10 is provided with a handle holding portion 10f for holding the handle 662 of the mop 660 in a state where the mop 660 is housed in the case 650. In the illustrated example, the battery accommodating portion 10d provided on the upper end side of the vacuum cleaner main body 10 on the rear side of the grip portion 16 is provided with a recess 10e into which the upper end portion of the handle 662 of the mop 660 can be fitted. There is. Further, the recess 10e is provided with a handle holding portion 10f for holding the handle 662. In the illustrated example, a substantially "C" -shaped clip is used as the handle holding portion 10f. The battery accommodating portion 10d may be detachable from the vacuum cleaner main body 10, but in the present embodiment, the battery accommodating portion 10d is non-detachably integrated with the vacuum cleaner main body 10.

As shown in FIG. 32, in the vacuum cleaner 1, the electric blower 14 and the dust collecting portion 20 are arranged so as to be arranged one above the other, and the battery accommodating portion 10d is provided on the upper side of the pipe portion 30. The width in the front-back direction becomes compact. Therefore, as shown in FIG. 32, even if the case 650 and the mop 660 are provided on the back surface of the vacuum cleaner main body 10, the vacuum cleaner 1 does not need to be enlarged.

Further, as shown in FIG. 32 and the like, the vacuum cleaner 1 has a protruding portion 10g protruding toward the back side in the battery accommodating portion 10d at a position separated above the handle holding portion 10f. The protruding portion 10g is a portion that functions as a non-slip when the vacuum cleaner 1 is hung on the wall. The protruding portion 10g is formed so as to project further toward the back side than the mop 660 held by the handle holding portion 10f. Therefore, even if the mop 660 is provided on the back side of the vacuum cleaner main body 10 of the vacuum cleaner 1, the mop 660 does not get in the way when it is hung on a wall or the like.

The mop 660 used in the example shown in FIG. 32 may have any shape and structure as long as it is a handy type, but it is preferable that the mop 660 is as shown in FIG. 35, for example. Specifically, the mop 660 has a handle 662 and a cleaning portion 666 that rotates with respect to the handle 662 with reference to the rotating portion 664. In the illustrated example, the dust collecting member formed of fibers, non-woven fabric, or the like attached to the cleaning unit 666 is not shown and omitted.

As shown in FIG. 36, the handle 662 is a telescopic type composed of a combination of a plurality of (three in the illustrated example) handle portions 670, 672, and 674. Specifically, the handle portion 670 (hereinafter, also referred to as "first handle portion 670") is a hollow tubular body having a closed end side and an opening on the base end side. The first handle portion 670 has a first hole portion 670a on the tip end side (closed side) and a second hole portion 670b on the base end side (opening side). Further, the handle portion 672 (hereinafter, also referred to as "second handle portion 672") is formed of a hollow tubular body. The second handle portion 672 has a third hole portion 672a and a first button 672c on the tip end side, and has a fourth hole portion 672b on the base end side. The handle portion 674 (hereinafter, also referred to as “third handle portion 674”) is composed of a hollow tubular body. The third handle portion 674 has a fifth hole portion 674a and a second button 674c on the tip end side. The handle 662 is connected so that the second handle 672 can be expanded and contracted with respect to the first handle 670 by inserting the tip end side of the second handle 672 from the base end side of the first handle 670. .. Further, the handle 662 is connected so that the third handle 674 can be expanded and contracted with respect to the second handle 672 by inserting the tip end side of the third handle 674 from the base end side of the second handle 672. ing. Further, although the first button 672c and the second button 674c are always urged so as to protrude from the outer peripheral surfaces of the second handle portion 672 and the third handle portion 674, they can be retracted by pressing. ..

The handle 662 is formed by connecting the handle portions 670, 672, and 674 as described above. Therefore, when the first handle portion 670 and the second handle portion 672 are moved in a direction away from each other in the axial direction, the first button 672c of the second handle portion 672 engages with the second hole portion 670b of the first handle portion 670. Then, the first handle portion 670 and the second handle portion 672 are in an extended state and locked. Further, when the second handle portion 672 and the third handle portion 674 are moved in a direction away from each other in the axial direction, the second button 674c of the third handle portion 674 engages with the fourth hole portion 672b of the second handle portion 672. Then, the second handle portion 672 and the third handle portion 674 are in an extended state and locked. On the contrary, in the state where the first handle portion 670 and the second handle portion 672 are extended, the first handle portion 670 and the second handle portion 670 and the second handle are pressed while pressing the first button 672c exposed by the second hole portion 670b. When the portion 672 is moved in a direction close to the axial direction, the first handle portion 670 and the second handle portion 672 can be contracted. When the first handle portion 670 and the second handle portion 672 are contracted, the first button 672c engages with the first hole portion 670a.
Similarly, with the second handle portion 672 and the third handle portion 674 extended, while pressing the second button 674c exposed by the fourth hole portion 672b, the second handle portion 672 and the third handle portion 674 are pressed. When the second handle portion 672 and the third handle portion 674 are moved in a direction close to the axial direction, the second handle portion 672 and the third handle portion 674 can be contracted. When the second handle portion 672 and the third handle portion 674 are contracted, the second button 674c engages with the third hole portion 672a.

Further, as shown in FIG. 37, the rotating portion 664 includes a first outer connecting portion 680 and a second outer connecting portion 682 provided at the end of the handle 662, and an inner portion provided at the end of the cleaning portion 666. The connecting portion 684 is rotatably connected by using the first locking portion 686 and the second locking portion 688. The first outer connecting portion 680, the second outer connecting portion 682, and the inner connecting portion 684 are each formed so as to have a substantially circular outer shape when viewed from the front. The first outer connecting portion 680 is an annular shape having a through hole 680a in a substantially central portion. The first outer connecting portion 680 includes a spring accommodating portion 680b for accommodating the spring 687 on the side opposite to the side facing the second outer connecting portion 682. Further, the second outer connecting portion 682 is provided at a position facing the first outer connecting portion 680 at a predetermined interval. The second outer connecting portion 682 has a through hole 682a in the central portion, and a plurality of grooves 682b are provided on the outer peripheral side thereof at predetermined intervals in the circumferential direction. The inner connecting portion 684 has a through hole 684a in the central portion, and a plurality of grooves 684b are provided on the outer peripheral side thereof at predetermined intervals in the circumferential direction.

The first locking portion 686 is said to include a first flange portion 686a and a claw portion 686b protruding from one side of the first flange portion 686a. Further, the second locking portion 688 is assumed to have a second flange portion 688a, a tubular portion 688b, a protrusion 688c, and a hole portion 688d. The tubular portion 688b is a tubular portion protruding from one side of the second flange portion 688a. Further, a plurality of protrusions 688c are provided on the peripheral portion of the tubular portion 688b, and are formed so as to project toward the outside of the tubular portion 688b. The hole portion 688d is a hole formed at the peripheral portion of the tubular portion 688b so as to communicate with the inside and outside of the tubular portion 688b.

The rotating portion 664 communicates through holes 680a, 684a, 682a with the inner connecting portion 684 inserted between the first outer connecting portion 680 and the second outer connecting portion 682, and the first outer connecting portion 680. Insert the claw portion 686b of the first locking portion 686 from the side, insert the tubular portion 688b from the second outer connecting portion 682 side, and engage the tip portion of the claw portion 686b with the hole portion 688d provided in the tubular portion 688b. It is assembled by letting it. When assembling the rotating portion 664, the spring 668 is housed in the spring accommodating portion 680b of the first outer connecting portion 680 in a compressed state. In the rotating portion 664, when the first flange portion 686a is not pressed, the protrusion 688c of the second locking portion 688 engages with the groove 684b of the inner connecting portion 684 and the groove 682b of the second outer connecting portion 682. is doing. As a result, the rotating portion 664 is locked, and the handle 662 and the cleaning portion 666 cannot rotate. On the other hand, when the rotating portion 664 presses the first flange portion 686a against the urging force of the spring 668, the protrusion 688c of the second locking portion 688 remains engaged with the groove 682b of the second outer connecting portion 682. It comes off from the groove 684b of the inner connecting portion 684. As a result, the rotating portion 664 is unlocked, and the handle 662 and the cleaning portion 666 are in a state where they can rotate. Further, the rotating portion 664 returns to the locked state when the pressing of the first flange portion 686a is released.

<< Modification example of pipe portion 30 >>
In the above-mentioned vacuum cleaner 1, the pipe portion 30 may be a tubular body through which dust can pass, but may have a structure as shown in FIG. 38, for example. Specifically, in the pipe portion 30 of FIG. 38, the internal space is separated by a partition wall 700 from the wiring accommodating portion 702 and the dust flow path 704. The partition wall 700, the wiring accommodating portion 702, and the dust flow path 704 are made of metal or resin. The wiring accommodating portion 702 includes a first terminal pin 706 exposed to the outside in the resin pipe cover on one end side of the pipe portion 30, and a second terminal pin 706 exposed to the outside in the resin pipe cover on the other end side of the pipe portion 30. The wiring 710 connecting the two terminal pins 708 is housed. The wiring accommodating portion 702 and the dust flow path 704 in both pipe covers are made of resin. The first terminal pin 706 and the second terminal pin 708 are electrically connected to the vacuum cleaner main body 10 and the suction tool 40, respectively. According to such a configuration, it is possible to prevent 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 pipe portion 30 or being exposed to the outside.

<< Modification example of vacuum cleaner support device 330 >>
As in the case of the vacuum cleaner unit 300 of the first modification described above, for example, in the case where a vacuum cleaner support device 330 for supporting the vacuum cleaner 1 is provided, as shown in FIG. 39, various types are provided. It is preferable to provide an arrangement portion 720 for arranging the accessories. In the example of FIG. 39, in addition to the mounting portion 340 for arranging the vacuum cleaner 1, the arranging portion 720 for arranging the attachment or the like is provided. The arranging portion 720 is provided on the rear side of the mounting portion 340 (support portion 350), and for example, a protrusion 724 that can be inserted into the opening portion of the joint forming the attachment 722 of the nozzle system may be provided, or the suction tool 40 may be provided in the width direction (the width direction of the suction tool 40). Longitudinal direction) It is preferable to provide an insertion portion 726 in which one side portion can be inserted and stored. Further, the arrangement unit 720 may be provided with an accommodation unit 728 for accommodating disposable consumables, for example. The accommodating portion 728 also has a structure for positioning by the arranging portion 720, and has, for example, a recess on the bottom surface into which the protrusion 724 fits. Further, the accommodating portion 728 of the present embodiment is used for accommodating the filter 70, and can be taken in and out from the opening / closing lid portion on the top surface. However, the present invention is not limited to this, and when the paper pack type vacuum cleaner is supported by the vacuum cleaner support device 300, it can be used as a container for accommodating the paper pack.

≪Modified example of main body case and battery housing part≫
As described above, the electric blower 14 used in the vacuum cleaner 1 is housed in the main body case 12 of the vacuum cleaner main body 10, and the main body case 12 is on the peripheral surface (side surface) as shown in FIG. 40, for example. It is preferable to reduce the weight by providing an opening 630d or the like. Further, the opening 630d may be provided in a honeycomb shape as shown in the illustrated example, or may be provided with a large number of holes formed in a shape such as a circle, a rectangle, or a polygon. Further, in the main body case 12, a discharge opening for discharging the exhaust gas from the electric blower 14 is formed between the battery accommodating portion 10d and the honeycomb-shaped opening 630d, and covers the discharge opening and the opening 630d. The main body cover is provided on the main body case 12. The main body cover is arranged so that the exhaust port 10x faces the discharge opening of the main body case 12, and the exhaust port 10x is designed to be smaller than the discharge opening.

Further, the vacuum cleaner 1 may provide a communication hole 10y between the main body case 12 in which the electric blower 14 is arranged and the battery accommodating portion 10d, and may provide an exhaust hole 10z in the battery accommodating portion 10d. As a result, the exhaust gas of the electric blower 14 can be discharged from the exhaust hole 10z through the communication hole 10y, so that the battery 17a in the battery accommodating portion 10d can be cooled. Further, in the vacuum cleaner 1, as shown by a broken line in FIG. 40, a circuit board 750 (control unit) for controlling the operation of the vacuum cleaner is arranged in either the main body case 12 or the battery accommodating unit 10d. You may. As a result, the space in the main body case 12 or the battery accommodating portion 10d can be effectively used for arranging the circuit board 750, and the circuit board 750 can be cooled. When the communication holes 10y and the exhaust holes 10z are provided, it is not necessary to provide the discharge opening of the main body case 12 and the exhaust port 10x of the main body cover. This makes it possible to facilitate the flow of air into the battery accommodating portion 10d.

≪Modified example of dust collector≫
As shown in FIG. 41, similarly to the fourth seal member 125, the fourth seal portion 125A in the modified example is the inner wall of the dust collecting container 50 (outer container 52) and the centrifuge inner cylinder constituting the centrifugal separation portion 100. The space between the upper wall portion 120 of the 104 and the upper wall portion 120 is sealed with an annular sealing member. The fourth seal member 125A is arranged between the L-shaped upper wall portion 120A whose end extends downward, the outer container 52, and the centrifugal separation outer cylinder 102A. As the shape of the centrifugal outer cylinder 102 is changed to the centrifugal outer cylinder 102A having flange portions 102a and 102b protruding in the radial direction, the fourth seal member 125 is changed to the fourth seal member 125A. Specifically, the S-shaped fourth seal member 125 is changed to the L-shaped fourth seal member 125A. The flange portion 102b is supported by the lower step portion of the outer container 52.

In the fourth seal portion 125A, the erection portion 136 erected on the outer peripheral side of the lid plate portion 130 constituting the lid portion 106 projects downward from the upper wall portion 120 and comes into contact with the fourth seal member 125A. Further, the fourth seal member 125A is supported by the upper step portion formed on the outer container 52 and the flange portion 102a of the centrifugal separation outer cylinder 102A. The fourth seal portion 125A has such a structure to ensure the airtightness between the outer container 52 and the upright portion 136 and the airtightness between the outer container 52 and the flange portion 102a.

The present invention is not limited to those shown as the above-described embodiments, modifications, and the like, and there may be other embodiments from the teaching and spirit within the scope of the claims. The components of the above-described embodiment may be arbitrarily selected and combined. Further, any component of the embodiment and any component described in the means for solving the invention or a component embodying any component described in the means for solving the invention are arbitrarily combined. May be configured. We also intend to acquire the rights to these in the amendment or divisional application of the present application.

The present invention can be suitably used in all vacuum cleaners.

1: Electric vacuum cleaner 10: Vacuum cleaner body 14: Electric blower 20: Dust collector 40: Suction tool 42: Case body 42a: Lower case 42b: Upper case 43: Suction port 46: Rotating cleaner 48: Cleaning body drive mechanism 70: Filter 80: Filter support 90: Cover 100: Centrifugal separation 106: Lid 108: Support 154: Support opening 210: Driver 210a: Main body 212: Power transmitter 214: Output side pulley 216: Driven side pulley 220: Holding member 224: Upper holding member

Claims (4)

A vacuum cleaner with an electric blower and
A dust collector that is detachably provided on the vacuum cleaner body and collects dust sucked by the drive of the electric blower is provided.
The dust collector
Centrifugal part that separates dust and
A filter provided on the downstream side of the centrifuge and collecting dust,
A filter support portion that supports the filter from the upstream side while being separated from the exhaust port of the centrifuge portion.
A vacuum cleaner characterized by having. The vacuum cleaner according to claim 1, wherein the filter support portion has one or more openings for discharging air to the downstream side. The centrifuge portion has a lid portion provided with the exhaust port, and the centrifuge portion has a lid portion.
The vacuum cleaner according to claim 1 or 2, wherein the lid portion has a support portion that supports the filter support portion from the upstream side. The vacuum cleaner according to any one of claims 1 to 3, wherein the dust collector has a cover portion that holds the filter in combination with the filter support portion.

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