Vacuum Cleaner System

Abstract

To realize a vacuum cleaner system S capable of facilitating dust collection on a side of a vacuum cleaner.SOLUTION: In a vacuum cleaner system S, a first dust collection part 50 includes: a first dust collection container having a dust collection part inflow port; a structure body having a dust collection space discharge part and constituting a dust collection space with the first dust collection container; and an opening / closing part to open / close an opening part in a bottom part of the first dust collection container. The structure body includes a tapered part whose outer shape is reduced from one side to the other side in a center axial direction. A dust collection device 100 includes: a second dust collection part 110 which collects dust from the first dust collection part 50 of a vacuum cleaner 1 and to which the dust is collected; and a second electric blower 120 for generation of suction force.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a vacuum cleaner system. [Background technology]

[0002] A conventional vacuum cleaner, such as that disclosed in Japanese Patent Application Laid-Open No. 2004-283327, generates a suction airflow and collects dust with the generated airflow. This vacuum cleaner comprises a vacuum cleaner main body having a dust case on the main body side that collects and stores dust, and an installation stand having a dust case on the installation stand side that stores dust from the dust case on the main body. When the vacuum cleaner main body is installed on the installation stand, the vacuum cleaner is provided with a means for discharging dust from the dust case on the main body side of the vacuum cleaner main body into the dust case on the installation stand. The vacuum cleaner disclosed in the aforementioned patent document has valves on both the vacuum cleaner main body and the installation stand, and the valves are opened by the airflow from the fan motor, allowing dust to be discharged from the dust case on the main body side to the dust case on the installation stand. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-283327 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the vacuum cleaner of Patent Document 1 has a problem in that dust tends to remain in the dust case on the main body side because the vacuum cleaner uses circulating air currents to collect dust in a dust case on the installation stand side.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vacuum cleaner system that can easily collect dust from the vacuum cleaner. [Means for solving the problem]

[0006] The vacuum cleaner system of the present invention, which is provided to solve the above-mentioned problems, comprises a vacuum cleaner and a dust collection device, wherein the vacuum cleaner comprises a main body having a first electric blower that generates suction force, and a first dust collection section in which dust is collected, the first dust collection section having a first dust collection container with a dust collection section inlet, a structure having a dust collection space exhaust section and defining a dust collection space between the first dust collection container and the first dust collection container, and an opening / closing section capable of opening and closing the opening at the bottom of the first dust collection container, the structure having a tapered section whose outer shape becomes smaller from one side to the other in the central axis direction, the dust collection device collects dust from the first dust collection section of the vacuum cleaner, and comprises a second dust collection section in which dust is collected, and a second electric blower that generates suction force, and the vacuum cleaner or dust collection device is characterized in having an opening means for opening the opening / closing section.

[0007] The vacuum cleaner system of the present invention is configured so that an opening at the bottom of a first dust collecting container constituting a first dust collecting section of the vacuum cleaner can be opened and closed by an opening / closing unit. The vacuum cleaner system also includes a dust collection device for collecting dust from the first dust collecting section of the vacuum cleaner, and a second electric blower can generate suction force to collect the dust in the second dust collecting section. Furthermore, the vacuum cleaner system is configured so that the vacuum cleaner or the dust collection device includes an opening means for opening the opening / closing unit. Therefore, by opening the opening / closing unit at the bottom of the first dust collecting container by the opening means, the dust collected in the first dust collecting section can fall under the influence of gravity. Additionally, by operating the second electric blower provided in the dust collection device with the opening / closing unit open, a suction force can be applied to the dust in a direction toward the second dust collecting section. Therefore, the vacuum cleaner system can apply both gravity and the suction force of the second electric blower to the dust collected in the first dust collecting section, thereby collecting the dust in the second dust collecting section. Therefore, the vacuum cleaner system can easily and smoothly collect dust collected on the vacuum cleaner side in the dust collection device. [Effects of the Invention]

[0008] According to the present invention, it is possible to realize a vacuum cleaner system that can easily collect dust on the vacuum cleaner side. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a side view showing a vacuum cleaner system according to an embodiment of the present invention; [Figure 2] FIG. 2 is a cross-sectional view of the vacuum cleaner system shown in FIG. [Figure 3] FIG. 3 is an enlarged view of a main part of FIG. 2. [Figure 4] 2 is an enlarged view of a main part of the electric vacuum cleaner shown in FIG. 1, showing a state in which a portion accommodating a first electric blower is exposed. FIG. [Figure 5] 3A to 3D are diagrams showing a first electric blower, in which (a) is a plan view, (b) is a perspective view, (c) is a front view, and (d) is a right side view. [Figure 6] 2 is a cross-sectional view taken along the line AA in FIG. 1. [Figure 7] FIG. 2 is an enlarged perspective view of the vicinity of a first dust collecting unit in the electric vacuum cleaner with the opening / closing unit in a closed state. [Figure 8] FIG. 2 is an enlarged perspective view of the vicinity of a first dust collecting unit in the electric vacuum cleaner with the opening / closing unit in an open state. [Figure 9] 4 is a cross-sectional view showing a dust collecting unit attached to the vacuum cleaner body. FIG. [Figure 10] FIG. 10 is a perspective view showing the dust collecting unit of FIG. 9. [Figure 11] FIG. 10 is an exploded perspective view showing the dust collecting unit of FIG. 9. [Figure 12] 10 is a perspective view showing a state in which a first inner cylinder is disposed inside an outer cylinder in the dust collecting section of FIG. 9. FIG. [Figure 13] 10 is a perspective view showing a first inner cylinder constituting the dust collecting section of FIG. 9. FIG. [Figure 14] 10 is an exploded perspective view showing a second inner cylinder included in the dust collecting unit of FIG. 9. FIG. [Figure 15] FIG. 3 is an enlarged view of part B in FIG. 2. [Figure 16] FIG. 2 is a perspective view showing the dust collecting and recovering device with the cover removed. [Figure 17] FIG. [Figure 18] FIG. 3 is an enlarged view of part C in FIG. 2. [Figure 19] 10 is an explanatory diagram showing a modified example of a configuration in which a locking portion is provided on the opening / closing portion. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, a vacuum cleaner system S according to one 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 system S will be outlined first, followed by a more detailed description of the main components. In the following description, unless otherwise specified, positional relationships in the up-down direction, width direction, front-rear direction, etc. will be described based on the state in which the vacuum cleaner 1 is upright as shown in FIG. 1. In the following description, unless otherwise specified, the up-down direction (the longitudinal direction of the vacuum cleaner 1) in the state shown in FIG. 1 will be referred to as a first direction, and a direction intersecting the first direction (the horizontal direction in the illustrated example) will be referred to as a second direction. In addition, among the horizontal directions in the state shown in FIG. 1, any direction that needs to be described as different from the second direction will be referred to as a third direction.

[0011] <<Overall configuration of the electric vacuum cleaner system S>> 1 and 2, the vacuum cleaner system S includes a vacuum cleaner 1 and a dust collection device 100. Furthermore, the vacuum cleaner system S of this embodiment includes a stand 200, but the stand 200 may be included as part of the dust collection device 100. When the vacuum cleaner 1 is set on the stand 200, the vacuum cleaner system S is capable of collecting dust collected in the vacuum cleaner 1 in the dust collection device 100. The configuration of each part that makes up the vacuum cleaner system S will be described in more detail below.

[0012] <<Overall configuration of vacuum cleaner 1>> As shown in Figures 1 to 5, the vacuum cleaner 1 is a stick-shaped (vertical) vacuum cleaner. The vacuum cleaner 1 may be, for example, a rechargeable type or one that obtains power from an external power source via a power cord. As shown in Figures 1 and 2, the vacuum cleaner 1 includes a main body 10, a first dust collecting unit 50, an extension tube 180, and a suction tool 190.

[0013] Main body 10 forms the main body of vacuum cleaner 1 and is the part that exerts suction power and performs the function of collecting dust. Specifically, as shown in Fig. 2, main body 10 includes, inside main body case 12 that forms the housing, a first electric blower 14 for sucking air and generating an airflow, a drive circuit for driving other electronic components, and other components.

[0014] The main body 10 also includes a battery housing 15, a handle 16, and a control unit 17. The battery housing 15 houses a battery 15a. The battery 15a can be attached to and detached from the outside of the main body 10 by sliding it in a first direction. The handle 16 is a portion provided to allow a user of the vacuum cleaner 1 to grip the main body 10. The vacuum cleaner 1 is configured so that the user can grip the main body 10, for example, by passing their fingers except for the thumb through an opening formed by the handle 16. The control unit 17 also controls the operation of the vacuum cleaner 1. An electronic board constituting the control unit 17 is housed inside the main body 10.

[0015] Furthermore, the main body 10 is provided with a pipe section 38x having an inlet 38y for connecting an extension pipe 180 or a suction tool 190. The inlet 38y is formed to open at the lower end side (one side in the first direction) of the main body 10. Furthermore, the pipe section 38x is arranged to be aligned with the first dust collecting section 50 in a second direction that intersects with the first direction.

[0016] The first dust collecting section 50 is a section where dust sucked by the vacuum cleaner 1 is collected. The first dust collecting section 50 is provided so as to be continuous with the main body 10. Specifically, the first dust collecting section 50 is arranged so as to be aligned with the pipe section 38x in a direction perpendicular to the axial direction (first direction) of the main body 10. The first dust collecting section 50 has a configuration that is characteristic of the vacuum cleaner 1, and therefore its specific structure will be described in detail later.

[0017] Extension pipe 180 is a cylindrical member that detachably connects main body 10 and suction tool 190. One end of extension pipe 180 is shaped so that it can be inserted into suction port 38y provided in main body 10, and the other end is shaped so that it can be connected to suction tool 190. By connecting main body 10 and suction tool 190 via extension pipe 180, a continuous, communicating path (air passage) from suction tool 190 to main body 10 can be formed.

[0018] Suction tool 190 is connected directly to suction port 38y of main body 10, or indirectly via extension pipe 180. Suction tool 190 has suction port 192 and joint part 194. Suction port 192 opens toward the bottom. Joint part 194 can be connected to suction port 38y or extension pipe 180. Characteristic features of suction tool 190 will be described in detail later.

[0019] The electric vacuum cleaner 1 is generally configured as described above. The electric vacuum cleaner 1 is characterized by the layout of each component, the structure of the handle 16 and the first dust collecting section 50, etc. These characteristic components will be described in more detail below.

[0020] <Configuration of the handle portion 16> In the main body 10, the main body case 12 is formed to extend toward one side (downward in FIG. 1) in a first direction (the vertical direction in FIG. 1; the longitudinal direction of the vacuum cleaner 1), while the handle 16 is formed to extend toward the other side in the first direction (upward in FIG. 1). As shown in FIGS. 1 to 4, the handle 16 includes a first extension 16a, a second extension 16b, a curved portion 16c, and an operating portion 16e. An opening 16d is formed between the main body 10 (main body case 12) and the handle 16.

[0021] The first extension portion 16a is a portion of the handle portion 16 that extends in a first direction. The first extension portion 16a extends in the first direction from the other side (the upper side in the illustrated example) of the first electric blower 14. The size of the first extension portion 16a can be set as appropriate, but in this embodiment, the size is set to be in the range of 6 cm to 10 cm inclusive, taking into consideration ease of gripping, etc.

[0022] The second extension portion 16b extends in a second direction (horizontal in the illustrated example) perpendicular to the first direction. Like the first extension portion 16a, the second extension portion 16b can be sized appropriately. In this embodiment, however, the second extension portion 16b is sized in the range of 6 cm to 10 cm, taking into consideration ease of gripping. Furthermore, in this embodiment, the second extension portion 16b is sized the same as the first extension portion 16a. This allows the handle portion 16 to be used with the same feel whether gripped by the first extension portion 16a or the second extension portion 16b.

[0023] The curved portion 16c is a curved portion connecting the first extension portion 16a and the second extension portion 16b. By providing the curved portion 16c, the handle portion 16 has a shape in which the boundary between the first extension portion 16a and the second extension portion 16b is curved in an arc, and the first extension portion 16a and the second extension portion 16b are continuously connected without any steps or the like. As a result, when gripping one of the first extension portion 16a and the second extension portion 16b, the gripping position of the handle portion 16 can be changed to the other side of the first extension portion 16a and the second extension portion 16b by sliding the hand along the handle portion 16. In other words, the gripping form of the handle portion 16 can be changed without releasing the hand.

[0024] Opening 16d is an opening region formed in handle portion 16 between first extension portion 16a, second extension portion 16b, and curved portion 16c and main body case 12. Opening 16d can be used to insert a hand when gripping handle portion 16. Opening 16d is located on the other side (upper side in FIG. 1) of first electric blower 14 in the first direction (up-down direction in FIG. 1).

[0025] The operating unit 16e is provided for operating the vacuum cleaner 1, etc. The operating unit 16e may include various switches, etc. The operating unit 16e may be provided on any of the first extension 16a, the second extension 16b, and the curved portion 16c, but in this embodiment, it is provided on the first extension 16a, which is likely to be gripped in normal use. The operating unit 16e may be provided on any part of the first extension 16a. In this embodiment, the operating unit 16e is provided on the surface facing away from the opening 16d so that it can be easily operated with the thumb during use.

[0026] <About Battery 15a> Battery 15a is arranged to be aligned with first electric blower 14 in a direction (second direction) perpendicular to the axial direction of main body 10. In other words, first electric blower 14 and battery housing section 15 are arranged to be aligned in a direction (second direction) perpendicular to the axial direction (first direction) of main body 10. Furthermore, battery 15a is arranged to overlap at least a portion of first dust collecting section 50 when viewed from the first direction.

[0027] <<About Control Unit 17>> The control unit 17 is disposed inside the main body 10 on the opposite side of the battery 15a with respect to the first electric blower 14. That is, the control unit 17 is disposed on one side in the second direction (the front side of the vacuum cleaner 1) of the first electric blower 14, and the battery 15a is disposed on the other side in the second direction (the rear side of the vacuum cleaner 1) of the first electric blower 14. The control unit 17 is located within a projected area of ​​the pipe 38x (suction port 38y) that constitutes the main body 10 in the first direction. The control unit 17 is also disposed in an area on the other side (the lower side in FIG. 1 ) of the opening 16d of the handle 16 in the first direction.

[0028] <<About the First Electric Blower 14>> As shown in FIGS. 4 to 6, the first electric blower 14 is housed inside the main body 10 and is covered by a case body 14a. The case body 14a has an exhaust opening 14x on a peripheral surface 14b. The exhaust opening 14x is located on one side (toward the right side of the vacuum cleaner 1 in the illustrated example) of a third direction (left-right direction of the vacuum cleaner 1) that is a horizontal direction intersecting the first direction (up-down direction) and perpendicular to the second direction (front-rear direction of the vacuum cleaner 1). In contrast, an external exhaust opening 10x provided on the outer periphery of the main body 10 is located on the other side of the third direction (toward the left side of the vacuum cleaner 1 in the illustrated example). In other words, the exhaust opening 14x provided in the case body 14a is located on the opposite side in the third direction to the external exhaust opening 10x provided in the main body 10.

[0029] As described above, the control unit 17 is provided at a position offset from the first electric blower 14 in the second direction (the front-to-rear direction of the vacuum cleaner 1). That is, the control unit 17 is provided at a position circumferentially spaced a predetermined amount (approximately 90 degrees in this embodiment) from the exhaust opening 14x. The external exhaust opening 10x is provided at a position further circumferentially spaced a predetermined amount (approximately 90 degrees in this embodiment) from the control unit 17. Therefore, the control unit 17 is located midway along the path from the exhaust opening 14x to the external exhaust opening 10x. As a result, the exhaust air discharged from the first electric blower 14 is exhausted to the outside of the main body 10 through a path that passes through the control unit 17. The exhaust opening 14x and the external exhaust opening 10x may be arranged to at least partially overlap each other when viewed from the third direction, or may be offset from each other.

[0030] Furthermore, the center position of the first electric blower 14 is located on the opposite side of the side on which the battery 15a is located in a second direction (horizontal direction in the attitude shown in Figure 1) that intersects with the central axis extending in a direction along the first direction (longitudinal direction of the vacuum cleaner 1; up and down direction in the attitude shown in Figure 1) of the first dust collecting section 50.

[0031] <Configuration of first dust collecting section 50> The first dust collecting unit 50 will be described in detail below with reference to Figures 1 to 3, 7 to 14, etc. The first dust collecting unit 50 is detachably attached to the main body 10. The first dust collecting unit 50 is a so-called cyclone-type dust collecting device. That is, the first dust collecting unit 50 introduces air sucked by the operation of the first electric blower 14 into the first dust collecting container 52, forms a swirling airflow within the first dust collecting container 52, and then discharges the air, thereby collecting dust contained in the air. The first dust collecting unit 50 can be of a so-called single-stage or multi-stage separation type, but the present embodiment employs a single-stage separation type.

[0032] As shown in FIGS. 1 to 3 , the first dust collecting unit 50 is disposed on one side (lower side) of the main body 10 in a first direction (longitudinal direction of the vacuum cleaner 1). The first dust collecting unit 50 has a first dust collecting container 52 (outer cylinder) and a structure 54, with a dust collecting space 56 formed therebetween. The first dust collecting unit 50 is configured to generate a swirling airflow that swirls air introduced into the dust collecting space 56 between the structure 54 and the first dust collecting container 52. The first dust collecting unit 50 is detachably attached to the main body 10 at a position below the first electric blower 14. For example, the first dust collecting unit 50 may be configured such that its bottom side is engaged with the pipe 38x and its upper side is provided with a lock button 52j for locking or unlocking the first dust collecting unit 50 relative to the main body case 12, or it may be configured such that its bottom side is provided with a lock button for locking or unlocking the first dust collecting unit 50 relative to the pipe 38x and its upper side is engaged with the main body case 12.

[0033] As shown in Figures 7 to 9, the first dust collecting container 52 is a container for accumulating dust therein. The first dust collecting container 52 is a hollow cylindrical body. As a result, the first dust collecting unit 50 is provided with a first dust collecting chamber 52a that forms a dust collecting space 56 inside the first dust collecting container 52. The first dust collecting container 52 is open on the other side (upper side) in the axial direction. The first dust collecting container 52 also has a disposal opening 52b and an opening / closing portion 52c at the lower end side of the first dust collecting chamber 52a.

[0034] The first dust collecting container 52 has a disposal port 52b (opening) on ​​one side (lower side) in the axial direction. The disposal port 52b is an opening that allows dust to be disposed of from the first dust collecting chamber 52a. The disposal port 52b opens at the lower end of the first dust collecting chamber 52a. The opening / closing portion 52c is capable of closing the disposal port 52b at the bottom of the first dust collecting chamber 52a. Therefore, when the opening / closing portion 52c is in an open state, dust accumulated in the first dust collecting chamber 52a can be disposed of through the disposal port 52b. Examples of the opening / closing portion 52c include a lid and a valve, but in this embodiment, the opening / closing portion 52c is a lid that can close the disposal port 52b. The opening / closing portion 52c is connected to the first dust collecting chamber 52a (the outer cylinder that constitutes the first dust collecting container 52) so as to be rotatable about a rotation shaft 52e. The opening / closing portion 52c has a contact portion 52f in an area on one side of the rotation shaft 52e, and a closing portion 52g in an area on the other side.

[0035] The abutment portion 52f can be abutted by an abutment portion 152 provided on the receiving portion 130, which will be described in detail later. The closing portion 52g is a portion that closes the disposal outlet 52b. The opening / closing portion 52c is biased by a biasing member 52h (a torsion spring in this embodiment) at a portion closer to the abutment portion 52f than the pivot shaft 52e. This biases the closing portion 52g in a direction that closes the disposal outlet 52b. The opening / closing portion 52c can rotate the closing portion 52g so that the closing portion 52g moves away from the disposal outlet 52b and open the disposal outlet 52b by, for example, abutting the abutment portion 152 against the abutment portion 52f, thereby applying a force to the abutment portion 52f against the biasing force of the biasing member 52h. Although waste outlet 52b has an opening surface perpendicular to the axial direction of first dust collecting container 52, it may have an opening surface inclined with respect to the axial direction of first dust collecting container 52. For example, the opening surface of waste outlet 52b may be inclined so as to move toward one side or the other in the axial direction of first dust collecting container 52 as it becomes farther away from rotating shaft 52e. This makes it easier for dust in first dust collecting chamber 52a to clump together, making it easier for the dust collection device 100 to suck it up.

[0036] Although the configuration in which the contact portion 152 contacts the contacted portion 52f to open the opening / closing portion 52c has been described as an example, the present invention is not limited to this. That is, a configuration in which the biasing member 52h is not used, and a locking portion that locks the opening / closing portion 52c (closing portion 52g) in a state in which the opening / closing portion 52c (closing portion 52g) closes the waste outlet 52b of the first dust collecting container 52 may be provided on either the opening / closing portion 52c (closing portion 52g) or the first dust collecting container 52, as shown in FIG. 19 , and the opening / closing portion 52c opens when unlocked. Alternatively, a contact portion 152A that can contact the locking portion may be provided on the receiving portion 130 instead of the contact portion 152, and the locking is released when the contact portion 152A contacts the locking portion. In this case, the locking portion has a contacted portion 52f1 that the contact portion 152A contacts. As shown in FIG. 19 , the locking portion is preferably configured to rotate about a rotation shaft. Although not shown in FIG. 19, the rotation shaft 52e of the opening / closing part 52c is located on the opposite side to the lock part.

[0037] Alternatively, assuming that the opening-closing portion 52c is biased by the biasing member 52h as described above, in addition to the configuration in which the abutting portion 152 abuts against the abutted portion 52f, a configuration may be adopted in which the receiving portion 130 is provided with an abutting portion 152A that can abut against a locking portion that locks the opening-closing portion 52c (closing portion 52g) in the closed state of the waste outlet 52b of the first dust collecting container 52. In this case, it is preferable that the abutting portion 152A abuts against the locking portion (abutted portion 52f1) before the abutting portion 152 abuts against the abutted portion 52f. This allows the opening-closing portion 52c to be opened smoothly. Meanwhile, when the opening-closing portion 52c closes the waste outlet 52b, it is preferable that the abutting portion 152 separates from the opening-closing portion 52c, and the opening-closing portion 52c closes the waste outlet 52b by being biased, and then the abutting portion 152A separates from the locking portion, thereby locking the opening-closing portion 52c. In this way, it is preferable to appropriately design the abutting portion 152A so that it is longer than the abutting portion 152. An opening may be provided in the closing portion 52g, and a valve or a lid may be provided on the closing portion 52g so as to be rotatable to open and close the opening. In this case, the operation to open the valve or lid can be performed mechanically by the abutting portion 152 and the abutted portions 52f, 52f1.

[0038] As shown in FIGS. 10 and 11 , the first dust collecting container 52 has a dust collecting inlet 52x (inlet) on its periphery. The dust collecting inlet 52x serves as an inlet for allowing air drawn from the suction port 38y into an air passage formed inside the pipe 38x to flow into the first dust collecting container 52. The dust collecting inlet 52x is located at a position corresponding to an opening at the end of the pipe 38x, for example, at the middle of the first dust collecting container 52 in the first direction (axial direction). Therefore, by attaching the first dust collecting unit 50 to the main body 10, the dust collecting inlet 52x can be connected to the air passage formed inside the pipe 38x. The dust collecting inlet 52x can also introduce air discharged from the air passage formed inside the pipe 38x into the dust collecting space 56 in a tangential direction to the inner circumferential surface of the first dust collecting container 52. Therefore, the air introduced into the dust collection space 56 from the dust collection section inlet 52x forms a swirling flow that flows along the inner circumferential surface of the first dust collection container 52.

[0039] As shown in FIGS. 9 and 11 , the structural body 54 is a component disposed inside the first dust collecting container 52. The structural body 54 is a component that defines a dust collecting space 56 into which air flows between the structural body 54 and the first dust collecting container 52. The structural body 54 is disposed so that its axial center position is approximately aligned with that of the first dust collecting container 52. The structural body 54 has a portion (a tapered portion 70, described below) formed so that its outer shape becomes smaller from one side (the upper side in the drawing) to the other side (the lower side in the drawing) in the axial direction. The structural body 54 has a first inner tube 60 (inner tube) and one side tube portion 64, and further has a connector 62, although this is not an essential component. The first inner tube 60 is connected to the one side tube portion 64. If the connector 62 is provided, the first inner tube 60 is connected to at least one of the one side tube portion 64 and the connector 62.

[0040] 9, 12, 13, etc., the first inner tube 60 includes a tapered portion 70 and an extending portion 72. The first inner tube 60 also includes a first guide portion 74 and a second guide portion 76 on the outer periphery of the tapered portion 70. The first inner tube 60 also includes a third guide portion 78 on the inner periphery of the tapered portion 70, although this is not an essential component.

[0041] The tapered portion 70 is a portion formed so that its outer shape becomes smaller from one side in the axial direction (the upper side in the drawing) to the other side (the lower side in the drawing). The tapered portion 70 is formed in a truncated cone shape, and is formed so that the outer circumferential surface slopes linearly toward the axial center as it moves from one side in the axial direction to the other side. The tapered portion 70 is open toward one side in the axial direction (the upper side), but includes a closed portion 70a that is closed on the other side in the axial direction (the lower side).

[0042] 9, the tapered portion 70 is formed so that the outer diameter of the large-diameter portion 70b on one axial side is approximately the same as the inner diameter of the first dust collecting container 52. A circumferential groove 70c extending in the circumferential direction is provided on the outer peripheral surface of the large-diameter portion 70b. The tapered portion 70 can form a first sealing portion 73 that seals a gap formed between the tapered portion 70 and the inner peripheral surface of the first dust collecting container 52 by using an airtight member (first airtight member 70d) made of an O-ring or the like that is attached to the circumferential groove 70c. That is, by setting the tapered portion 70 inside the first dust collecting container 52 with the closing portion 70a facing the bottom side of the first dust collecting container 52, the first sealing portion 73 is formed, in which the first airtight member 70d attached to the circumferential groove 70c and the inner peripheral surface of the first dust collecting container 52 are in tight contact with each other. Further, on the other axial side (the bottom side of the first dust collecting container 52) of the first sealing portion 73, a dust collecting space 56 is formed between the tapered portion 70 (first inner cylinder 60) and the first dust collecting container 52. Further, the first sealing portion 73 is formed above the dust collecting portion inlet 52x that communicates with the dust collecting space 56.

[0043] In addition to forming the dust collection space 56 as described above, the tapered portion 70 also functions as a dust collection space exhaust portion 80 for exhausting air from the dust collection space 56. Specifically, the tapered portion 70 has a large number of vent holes 70e formed in the circumferential direction to communicate the inside and outside of the tapered portion 70. The tapered portion 70 may be formed by resin molding or by a mesh member 82. The mesh member 82 is a mesh-like member made of a resin material, a metal material, or a combination thereof. Therefore, dust contained in air passing through the vent holes 70e that form the dust collection space exhaust portion 80 can be captured by the mesh member 82. A resin molded tapered portion 70 has a smoother surface than a mesh member 82, which reduces dust trapping.

[0044] The extending portion 72 is a portion formed to extend further toward the other side in the axial direction from the tapered portion 70. In this embodiment, the extending portion 72 extends toward the other side in the axial direction from its end portion on the other side in the axial direction (the lower end portion in the illustrated example) as a base end. The extending portion 72 is formed inside the dust collection space 56 so as to be spaced away from the bottom of the first dust collection container 52 toward one side in the axial direction (the upper side in the illustrated example). The extending portion 72 is formed to surround the periphery of the closing portion 70a. As a result, the extending portion 72 has a cylindrical shape whose upper end is closed by the closing portion 70a and whose lower end is open. Because the extending portion 72 is provided to surround the periphery of the closing portion 70a, airflows and dust that rise from the bottom of the first dust collection container 52 at a position on the axial center side of the dust collection space 56 collide with the closing portion 70a and are less likely to spread in a direction intersecting the axial direction. As a result, in the vacuum cleaner 1, dust such as hair and dirt contained in the airflow is less likely to become entangled in the tapered portion 70. The extension portion 72 is cylindrical. It is preferable that the extension portion 72 has a cylindrical shape with the same outer dimensions from the upper end to the lower end, or a tapered cylindrical shape whose outer dimensions become smaller from the upper end to the lower end. This makes it possible to prevent the airflow and dust that have been guided by the first guide portion 74 and smoothly guided toward the other axial side (the bottom side of the first dust collecting container 52) from becoming entangled in the extension portion 72. Note that the extension portion 72 is not limited to being cylindrical, and may be configured such that multiple extension members extending in the axial direction are provided at intervals from one another.

[0045] Furthermore, the closing portion 70a may have a convex shape on the central side that extends outward toward the bottom of the first dust collecting container 52, and more preferably may be curved. This makes it easier for the closing portion 70a to move air currents and dust that have risen from the bottom of the first dust collecting container 52 toward the extending portion 72 at a position on the axial side of the dust collecting space 56.

[0046] Furthermore, a plurality of ribs (protrusions) 52d for restricting the movement of dust due to swirling airflow may be provided on a bottom portion integrally formed as the bottom of the first dust collecting container 52, or on a lid-shaped bottom portion of the first dust collecting container 52 that is rotatably supported via a support shaft provided on the periphery of the first dust collecting container 52 so as to be able to open and close the bottom of the first dust collecting container 52. The plurality of ribs 52i extend toward the structure 54 and are arranged at intervals in the circumferential direction. Furthermore, as described above, a bottom portion integrally formed as the bottom of the first dust collecting container 52 or a lid-shaped portion that is able to open and close the bottom of the first dust collecting container 52 may be provided with protrusions extending toward the structure 54 (blocking portion 70a) instead of or in addition to the plurality of ribs 52i. When protrusions are provided together with the plurality of ribs 52i, the plurality of ribs 52i are arranged at intervals around the protrusions in a direction intersecting the axis (in the radial direction in this embodiment). The protrusions are preferably columnar, for example, cylindrical, rectangular, or cross-shaped, or tapered toward the structure 54. This prevents dust collected below the blocking portion 70a from being moved by air currents. If the bottom of the first dust collection container 52 is a lid-like structure that can be rotated to open and close, dust can be easily disposed of even if it becomes tangled in the protrusions or ribs 52i.

[0047] As shown in FIGS. 12 and 13 , the first guide portion 74 is a rib-like portion provided on the outer periphery of the tapered portion 70 and abuts against the inner circumferential surface of the first dust collecting container 52. When the structure 54 is inserted into the first dust collecting container 52 with the tapered portion 70 and the extending portion 72 facing the bottom of the first dust collecting container 52, the first guide portion 74 is disposed between the first dust collecting container 52 and the first inner cylinder 60. The first guide portion 74 functions as a guide member for guiding the airflow that flows from the dust collecting section inlet 52x into the dust collecting space 56 and swirls along the inner periphery of the first dust collecting container 52 to the other axial side (the bottom side of the first dust collecting container 52). The first guide portion 74 extends from one axial side to the other axial side (from the upper side to the lower side in the illustrated example) so as to approach the dust collecting section inlet 52x. An end of the first guide portion 74 may reach the dust collecting section inlet 52x. In other words, the first guide portion 74 extends from one side to the other in the axial direction (from the upper side to the lower side in the illustrated example) so as to approach the dust collection inlet 52x from a position upstream of the dust collection inlet 52x in the swirling direction of the airflow. Note that, although the first guide portion 74 has been described as being provided on the structure 54, it may also be provided on the inner circumferential surface of the first dust collection container 52. In this case, it is preferable that the first guide portion 74 abuts against the outer circumferential surface of the tapered portion 70 (structure 54).

[0048] Similar to the first guide portion 74, the second guide portion 76 is a rib-like portion provided on the outer periphery of the tapered portion 70. The second guide portion 76 is a rib that functions as a guide member for guiding the airflow flowing from the dust-collecting-portion inlet 52x into the dust-collecting space 56. The second guide portion 76 is formed between the first dust-collecting container 52 and the first inner cylinder 60 so as to intersect with the axial direction and extend along the swirling direction. The second guide portion 76 is connected to the terminal end of the first guide portion 74 described above.

[0049] The third guide portion 78 is rib-shaped and provided on the inner circumferential side of the first inner tube 60. The third guide portion 78 is disposed inside an internal space 84 of the first inner tube 60. A plurality of third guide portions 78 are provided in the internal space 84 at predetermined intervals in the circumferential direction. The third guide portion 78 is formed to extend from one circumferential side to the other circumferential side of the internal space 84. In this embodiment, when the structure 54 is cut along a plane perpendicular to the axial direction and viewed from one axial side (top side), the third guide portion 78 is formed so that its tip end (free end) is located at a position spaced apart in the clockwise direction (the same direction as the rotation direction) from its base end (the connection portion with the inner circumferential surface of the tapered portion 70). Note that when the connector 62 is provided, the third guide portion 78 is disposed in the internal space 84 formed between the tapered portion 70 (first inner tube 60) and the connector 62.

[0050] The connector 62 functions as an airflow outlet 67 for discharging air that has flowed into the dust collection space 56 to the outside of the first dust collecting section 50. Although not a required component, the airflow outlet 67 may include a filter. The connector 62 may be detachably connected to the first inner tube 60. In this case, the other axial end of the connector 62 is connected to the inside of the first inner tube 60. As shown in FIG. 9 and other figures, the connector 62 is formed, for example, by a cylindrical frame. Hereinafter, the connector 62 will be described as a second inner tube 62A as an example. The second inner tube 62A is disposed inside the first inner tube 60 (on the axial side of the first dust collecting section 50). The second inner tube 62A is connected to both or either of the first inner tube 60 and the one side tube portion 64. In this embodiment, the second inner tube 62A is connected to the first inner tube 60. As a result, an internal space 84 is formed between the first inner tube 60 and the second inner tube 62A. A plurality of the third guide portions 78 described above are provided inside the internal space 84 at predetermined intervals in the circumferential direction.

[0051] As shown in FIG. 14, the second inner cylinder 62A has a second inner cylinder outer frame 90, a second inner cylinder inner frame 92, and a second inner cylinder filter 94 (filter).

[0052] The second inner cylinder outer frame 90 is cylindrical and has support posts 90a and openings 90b in the middle in the axial direction of the cylinder. The support posts 90a are columnar portions extending in the axial direction of the cylinder, and multiple support posts 90a (four in this embodiment) are provided at predetermined intervals around the circumference of the second inner cylinder outer frame 90. The openings 90b are open portions of the second inner cylinder outer frame 90 between the support posts 90a, 90a that are lined up in the circumferential direction.

[0053] The second inner cylinder inner frame 92 is a cylindrical member disposed inside the second inner cylinder outer frame 90. The second inner cylinder inner frame 92 has support posts 92a and openings 92b in the middle in the cylindrical axis direction. The support posts 92a are columnar portions extending in the cylindrical axis direction, and multiple support posts 92a (four in this embodiment) are provided at predetermined intervals around the circumference of the second inner cylinder inner frame 92. The openings 92b are openings in the second inner cylinder inner frame 92 between the support posts 92a, 92a that are lined up in the circumferential direction.

[0054] The second inner cylinder filter 94 is for capturing dust contained in the air discharged from the internal space 84 through the second inner cylinder 62A. The second inner cylinder filter 94 is a mesh-like filter with many fine holes formed therein. The second inner cylinder filter 94 is curved along the second inner cylinder outer frame 90 and the second inner cylinder inner frame 92 and is sandwiched between the second inner cylinder outer frame 90 and the second inner cylinder inner frame 92. As a result, the second inner cylinder filter 94 forms a wall portion of the second inner cylinder 62A and is capable of capturing dust contained in the air passing through the opening 90b of the second inner cylinder outer frame 90 and the opening 92b of the second inner cylinder inner frame 92. Note that, although the second inner cylinder filter 94 is provided in this embodiment, it is not necessary.

[0055] 9 and 11, the one side cylinder portion 64 is provided in a direction (one axial side) away from the bottom side of the first dust collecting container 52 with respect to the second inner cylinder 62A. The one side cylinder portion 64 is provided integrally with or detachably attached to the second inner cylinder 62A, and is provided at a position adjacent to the upper side of the second inner cylinder 62A. As shown in FIG. 11, the one side cylinder portion 64 has an expanded diameter portion 64a, an intermediate portion 64b, and a filter mounting portion 64c.

[0056] The expanded diameter portion 64a extends upward from the second inner tube 62A. The expanded diameter portion 64a tapers upward. The intermediate portion 64b is located adjacent to the expanded diameter portion 64a in the axial direction and upward. The intermediate portion 64b extends in the axial direction of the first dust collecting container 52. A circumferential groove 64d extending in the circumferential direction is formed on the outer peripheral surface of the one side tube portion 64. A second sealing portion 65 that seals a gap formed between the one side tube portion 64 and the inner peripheral surface of the first dust collecting container 52 can be formed by an airtight member (second airtight member 64e) such as an O-ring attached to the circumferential groove 64d. The filter mounting portion 64c has a diameter substantially equal to the inner diameter of the first dust collecting container 52. Therefore, there is almost no gap between the outer peripheral surface of the filter mounting portion 64c and the inner peripheral surface of the first dust collecting container 52.

[0057] The filter mounting portion 64c has a step 64f formed at the boundary between the filter mounting portion 64c and the intermediate portion 64b on the inner circumferential side. A ring-shaped groove in which an airtight member 64j is disposed is provided in the step 64f, and the airtight member 64j abuts against the lower end of the second filter 64h, thereby improving airtightness. A first filter 64g and a second filter 64h are disposed inside the filter mounting portion 64c. The first filter 64g is a filter made of, for example, nonwoven fabric or sponge. The first filter 64g is disposed on the step 64f. The second filter 64h includes at least a pleated filter and a frame 64i surrounding the filter. The airtight member 64j abuts against the lower end of the frame 64i. The pleated filter constituting the second filter 64h is disposed on top of the first filter 64g, and the frame 64i is disposed inside the first filter 64g so as to surround the first filter 64g. The second filter 64h has an airtight member 64k disposed on the upper surface of the frame 64i, and the airtight member 64k abuts against the intake-side component 42a, improving airtightness. The pleated filter of the second filter 64h and the first filter 64g are spaced apart, allowing air to disperse in the space, effectively utilizing the surface of the pleated filter. This solves the problem of premature filter clogging and reduced suction power.

[0058] <<About the dust collection device 100>> As shown in FIG. 15 and other figures, the dust collection device 100 is disposed on the rear side of a support post 202 that constitutes a stand 200. The dust collection device 100 communicates with the first dust collection unit 50 of the vacuum cleaner 1 to collect dust from the vacuum cleaner 1. The dust collection device 100 includes a device body including the second dust collection unit 110 and the second electric blower 120, and a receiving unit 130. Preferably, when the vacuum cleaner 1 is connected to the dust collection device 100, the device body of the dust collection device 100 is located directly below at least one of the first electric blower 14 and the battery 15a. This allows the space behind the support post 202 and below the vacuum cleaner 1 to be utilized. The dust collection device 100 is also configured such that the receiving portion 130 is provided with a space portion 132 and a support portion 134, and the receiving portion 130 is connected to the second dust collecting portion 110 so as to communicate with each other via a communication portion 136. The dust collection device 100 is also provided with opening means 150 for placing the first dust collecting portion 50 of the electric vacuum cleaner 1 in the receiving portion 130 and opening the first dust collecting portion 50. With this configuration, the dust collection device 100 can collect dust from the first dust collecting portion 50 to the second dust collecting portion 110 via the communication portion 136 by opening the first dust collecting portion 50 and applying a suction force generated by operation of the second electric blower 120. The configuration of each portion will be described in more detail below.

[0059] The second dust collecting section 110 is a section that collects dust sucked from the first dust collecting section 50 of the vacuum cleaner 1. The second dust collecting section 110 can be a section that collects dust directly inside, or a cyclone type dust collecting section like the first dust collecting section 50, but in this embodiment, it is a section that can collect dust inside a paper bag by attaching a paper bag (a so-called "paper bag type" section). As shown in FIGS. 15 and 16 , the second dust collecting section 110 has a second dust collecting container 112 and a connecting section 114.

[0060] The second dust collecting container 112 is a hollow container having a second dust collecting chamber 112a therein. The second dust collecting container 112 is provided with a paper bag fixing portion 112b for clamping and fixing a backing provided at a connecting portion of a paper bag (not shown) for collecting dust. Furthermore, a communication hole 112c is provided on the surface (peripheral surface in this embodiment) that constitutes the second dust collecting container 112 at a position that corresponds to an opening provided in the backing of the paper bag when the paper bag is attached to the paper bag fixing portion 112b. The second dust collecting container 112 can be opened and closed by attaching and detaching a lid 112d. Therefore, by removing the lid 112d, placing the paper bag inside the second dust collecting chamber 112a, and fixing the backing of the paper bag to the paper bag fixing portion 112b, the opening of the paper bag and the communication hole 112c can be communicated. In addition, among the surfaces constituting the second dust collecting container 112 (the bottom surface in this embodiment), an air vent 112e is provided on the surface separating it from the second motor housing chamber 140 (blower arrangement space) in which the second electric blower 120 is housed.

[0061] Connection part 114 has receiving port 114a and connection path 114b. Receiving port 114a is a portion to which pipe part 136b, which forms communication part 136 that connects receiving part 130 and second dust collecting part 110, is connected. Connection path 114b is a passage that connects receiving port 114a and communication hole 112c provided in second dust collecting container 112 so that air and dust can pass through.

[0062] The second electric blower 120 is capable of generating a suction force as it operates. The second electric blower 120 is disposed in a second motor housing chamber 140 that communicates with the second dust collection container 112 of the second dust collecting unit 110 via an air vent 112e. The second electric blower 120 may be disposed in any suitable position and installation posture as long as it can exert a suction force on the second dust collection container 112. In this embodiment, taking into consideration that the operation of the second electric blower 120 tends to generate vibrations in the radial direction of the motor provided in the second electric blower 120 and that the second motor housing chamber 140 is disposed on the bottom side of the dust collection device 100, the second electric blower 120 is disposed so that the rotation shaft of the motor provided in the second electric blower 120 faces vertically to suppress vibration noise at the contact portion between the dust collection device 100 and the floor on which the main body of the dust collection device 100 is disposed.

[0063] As shown in FIGS. 1 to 3, the receiving portion 130 receives the first dust collecting portion 50 of the vacuum cleaner 1. Specifically, the receiving portion 130 has a recess 130a for the first dust collecting portion formed so that the lower end portion of the first dust collecting portion 50 fits into it. Furthermore, as shown in FIG. 7, the receiving portion 130 has a recess 130b for an extension pipe formed so that the recess 130b fits into or abuts against a portion of the periphery of the cylindrical portion of the main body 10 that has the suction port 38y. Preferably, the cylindrical portion of the main body 10 has a stepped shape, and the receiving portion 130 supports the stepped surface 130a from below. The extension pipe 180 may fit into or abut against a portion of the periphery of the recess 130b for the extension pipe. Furthermore, the receiving portion 130 is provided with an opening means 150.

[0064] The opening means 150 is for opening the first dust collecting chamber 52a of the first dust collecting unit 50. The opening means 150 can be structurally (mechanically) opened by rotating the opening / closing portion 52c provided in the first dust collecting unit 50. Specifically, as shown in FIG. 18 , when the first dust collecting unit 50 is fitted into the recess 130a for first dust collecting unit, a protruding abutting portion 152 is provided to function as the opening means 150 at a position where the abutted portion 52f of the opening / closing portion 52c arrives. When the first dust collecting unit 50 is fitted into the recess 130a for first dust collecting unit, the abutting portion 152 abuts against the abutted portion 52f on the first dust collecting unit 50 side. By fitting the first dust collecting unit 50 into the first dust collecting unit recess 130a, a pressing force is applied from the abutting portion 152 to the abutted portion 52f in a direction opposite to the biasing force of the biasing member 52h, causing the opening / closing portion 52c to rotate about the pivot shaft 52e and enter an open state. On the other hand, when the first dust collecting unit 50 is removed from the first dust collecting unit recess 130a and the engagement between the first dust collecting unit 50 and the abutted portion 52f is released, the pressing force applied from the abutting portion 152 to the abutted portion 52f is released. Accordingly, the biasing force of the biasing member 52h causes the opening / closing portion 52c to return to the closed state. Note that the opening / closing portion 52c may be configured to engage with the first dust collecting container 52 when it returns to the closed state. Note that, as described above, the receiving portion 130 may be provided with an abutting portion 152A instead of or in addition to the abutting portion 152.

[0065] Furthermore, the space 132 provided in the receiving part 130 forms a space capable of receiving the opening / closing part 52c that is opened by fitting the first dust collecting part 50 into the first dust collecting part recess 130a, at a position in the opening direction of the opening / closing part 52c (downward in this embodiment) relative to the first dust collecting part recess 130a. Therefore, the opening / closing part 52c can be opened and closed smoothly without interfering with the receiving part 130.

[0066] Furthermore, the receiving portion 130 is provided with a support portion 134, and the support portion 134 can support the opening / closing portion 52c, which is opened by fitting the first dust collecting portion 50 into the first dust collecting portion recess 130a. In this embodiment, when the opening / closing portion 52c is opened, the opening / closing portion 52c is tilted. Therefore, the support portion 134 is formed in an inclined state so as to fit along the opening / closing portion 52c in the open state.

[0067] The receiving portion 130 is in communication with the first dust collecting portion 50 via the communication portion 136 so that dust can be sucked from the first dust collecting portion 50 toward the second dust collecting portion 110. The communication portion 136 has a communication port 136a that communicates with the first dust collecting portion recess 130a and a pipe portion 136b connected to the communication port 136a. The pipe portion 136b is configured by a hose, a pipe, or the like (a pipe in this embodiment). The communication portion 136 is in communication with the first dust collecting portion 50 that is in an open state when fitted into the first dust collecting portion recess 130a of the receiving portion 130. The communication portion 136 is formed so that the distance between the open / close portion 52c in the open state and the inner wall of the communication portion 136 becomes narrower toward the downstream side in the dust suction direction from the first dust collecting portion 50 to the second dust collecting portion 110. Furthermore, the portion of pipe portion 136b opposite to the side connected to communication port 136a is connected to receiving port 114a provided in connecting portion 114 of second dust collecting portion 110. As a result, receiving portion 130 is supported by pipe portion 136b on the upper side relative to second dust collecting portion 110. Therefore, by fitting first dust collecting portion 50 into first dust collecting portion recess 130a of receiving portion 130, the vacuum cleaner 1 is supported by pipe portion 136b via receiving portion 130. Furthermore, pipe portion 136b is aligned with extension tube 180 fitted into extension tube recess 130b of receiving portion 130. Therefore, by placing the suction tool 190 connected to the tip end of the extension tube 180 on the stand 200 and fitting the first dust collecting section 50 into the receiving section 130, the electric vacuum cleaner 1 is stably supported by the extension tube 180 and the tube section 136b arranged side by side.

[0068] <<Control of the electric vacuum cleaner system S>> The vacuum cleaner system S can be configured so that the dust collection device 100 starts operating when the vacuum cleaner 1 is connected to the dust collection device 100. The vacuum cleaner system S may be configured so that the dust collection device 100 starts suctioning when the vacuum cleaner 1 is connected to the dust collection device 100 and the vacuum cleaner 1 touches a switch provided on the stand 200 to turn it ON. In another configuration, the stand 200 may have a charging mechanism, and the dust collection device 100 may start suctioning when it detects that electricity is flowing between the stand 200 and the vacuum cleaner 1. In this case, a wiring for detecting the flow of electricity may be provided between the power terminal of the stand 200 and the control unit 17, in addition to the wiring for charging.

[0069] <<Variations>> The vacuum cleaner system S of this embodiment has the configuration described above, but may be configured differently from the above within the scope of the present invention. For example, in this embodiment, the first dust collecting part 50 is fitted into the receiving part 130, so that the contacting part 152 naturally contacts the contacted part 52f, but the present invention is not limited to this.

[0070] Specifically, an operating unit for operating either or both of the contacted portion 52f and the contacting portion 152 may be provided, and the two may be brought into contact with each other by operating the operating unit. In this case, the operating unit may be provided in either the vacuum cleaner 1 or the dust collection device 100 together with a member that is operated by operating the operating unit. More specifically, the contacting portion 152 may be configured as a movable member, and the contacting portion 152 may be brought into contact with the contacted portion 52f by operating the operating unit. This allows the user of the vacuum cleaner system S to open the closing portion 52g or transfer dust from the first dust collecting portion 50 to the second dust collecting portion 110 at a desired timing.

[0071] Furthermore, when the contact portion 152 is movable, the contact portion 152 (opening means 150) may be provided on the first dust collecting container 50 side. For example, the contact portion 152 may be, for example, shaft-shaped, and the contact portion 152 may press against the closing portion 52g from inside the first dust collecting container 52 to open the closing portion 52g. In this case, the position at which the contact portion 152 abuts on the closing portion 52g is the contacted portion 52f2 (not shown). Preferably, the contact portion 152 is configured to press a position of the closing portion 52g that is away from the pivot shaft 52e and the axial center position of the first dust collecting container 52 as the contacted portion 52f2. If there is a locking structure that locks the closing portion 52g with the first dust collecting container 52 in the closed state, the contact portion 152 is preferably configured to press the locking structure side of the pivot shaft 52e. An opening may be provided in closing portion 52g, and a valve or lid may be provided on closing portion 52g so as to be rotatable to open and close the opening. In this case, the valve or lid can be mechanically opened by contact portion 152 and contacted portions 52f, 52f2, regardless of whether they are movable or not.

[0072] Furthermore, while the dust collection device 100 is configured such that the device body and the receiving part 130 are connected by the pipe part 136b, this is not limiting. The device body may be configured to have the receiving part 130, and the device body may be extended together with the connecting passage 114b to a height where the first dust collecting part 50 fits into the receiving part 130 connected to the connecting passage 114b. In this case, there is no need to provide a separate pipe part 136b.

[0073] Furthermore, although the first dust collecting unit 50 is configured to open the bottom of the first dust collecting container 52, the disposal port may be formed by opening the side surface. Even in this case, the receiving portion 130 only needs to receive the first dust collecting container 52 from the disposal port side of the side surface, and the opening / closing portion 52c can be opened diagonally or horizontally by rotating.

[0074] Although the electric vacuum cleaner 1 of this embodiment has been described as being connected to the dust collection device 100 with the main body 10 and the suction tool 190 connected by the extension tube 180, the present invention is not limited to this. The electric vacuum cleaner 1 may also be connected to the dust collection device 100 with the suction tool 190 attached to the suction port 38y of the main body 10.

[0075] The above-described vacuum cleaner system S is preferably configured such that, by fitting the main body 10 of the vacuum cleaner 1 into the receiving portion 130 of the dust collection device 100 and operating the second electric blower 120 with the opening / closing portion 52c open, not only dust in the first dust collection portion 50 but also dust adhering to the first filter 64g and the second filter 64h (or, if either the first filter 64g or the second filter 64h is provided, one of the filters) can be sucked in. Specifically, the structure 54 of the vacuum cleaner 1 has the extension portion 72 extending toward the closing portion 52g (opening / closing portion 52c) that forms the bottom of the first dust collection portion 50, and preferably abutting against the bottom of the closed opening / closing portion 52c. An opening is provided in the portion corresponding to the closing portion 70a, for example, by eliminating the closing portion 70a provided in the first inner tube 60. This allows communication between the first inner tube 60 and the extension portion 72. With this configuration, the main body 10 of the electric vacuum cleaner 1 is fitted into the receiving part 130 of the dust collection device 100, and by operating the second electric blower 120 with the opening / closing part 52c open, the suction force of the second electric blower 120 also acts on the first filter 64g and the second filter 64h, making it possible to remove dust adhering to these filters.

[0076] Furthermore, an on-off valve may be provided to adjust the air flowing into dust collection space 56 from dust collection unit inlet 52x by the suction of second electric blower 120, and this on-off valve may be closed when removing dust adhering to first filter 64g and second filter 64h and opened at other times. When the on-off valve is closed in this manner, the suction force of second electric blower 120 makes it easier for air to flow from external exhaust opening 10x through first filter 64g and second filter 64h (or one of the first filter 64g and second filter 64h if one of first filter 64g and second filter 64h is provided), through extension 72, and into dust collection device 100, thereby making it possible to suck in dust adhering to first filter 64g and second filter 64h (or one of the first filter 64g and second filter 64h if one of first filter 64g and second filter 64h is provided).

[0077] The on-off valve may be provided anywhere between the suction port of suction tool 190 and dust collection unit inlet 52x, and is preferably on-off valve 170 that opens and closes an opening in pipe section 38x that faces dust collection unit inlet 52x (see FIG. 3). This on-off valve 170 may be configured to be electrically opened and closed, or may be configured to be manually opened and closed (for example, a shutter mechanism). If on-off valve 170 can be electrically opened and closed, the vacuum cleaner 1 may have an operation button for opening and closing it, or it may be configured so that when vacuum cleaner 1 is attached to dust collection device 100, vacuum cleaner 1 detects the above-mentioned flow of electricity between vacuum cleaner 1 and dust collection device 100 and closes it when it no longer detects the flow of electricity.

[0078] Furthermore, it is preferable to provide an airtight member 160 such as an O-ring so as to surround the periphery of the closing portion 52g when the main body 10 is fitted into the receiving portion 130 of the dust collection device 100. The airtight member 160 may be provided on either or both of the receiving portion 130 and the bottom of the first dust collection container 52.

[0079] <<Effects obtained by the configuration of the vacuum cleaner system S and the vacuum cleaner 1>> The effects and the like obtained by the above-described vacuum cleaner system S and vacuum cleaner 1 will be described below for each aspect of the present invention.

[0080] [Regarding the electric vacuum cleaner according to the first aspect of the present invention] A rechargeable vacuum cleaner such as that disclosed in Japanese Utility Model Publication No. 61-47961 has been provided. This rechargeable vacuum cleaner is provided with a fan motor and a rechargeable secondary battery that supplies power to the fan motor in the vacuum cleaner body, a floor suction port is connected to the suction port of the vacuum cleaner body via an extension tube, and the center of gravity of the vacuum cleaner body is located behind the center of the grip of the vacuum cleaner body. In the rechargeable vacuum cleaner of Japanese Utility Model Publication No. 61-47961, the opening formed by the grip for inserting the hand is located on the opposite side of the secondary battery from the rotation axis of the fan motor, which places strain on the user's wrist and makes the cleaner less user-friendly. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vacuum cleaner that is easier to operate than conventional vacuum cleaners. (1-1) The electric vacuum cleaner 1 comprises a main body 10 having a first electric blower 14 (electric blower) that generates suction force, a first dust collection section 50 that collects dust, and a handle section 16, wherein the first dust collection section 50 (dust collection section) is arranged on one side of the main body 10 in a first direction, and the handle section 16 is arranged on the other side of the main body 10 in the first direction, and the handle section 16 is characterized in that it has a first extension section 16a extending in the first direction, a second extension section 16b extending in a second direction perpendicular to the first direction, and a curved section 16c that connects the first extension section 16a and the second extension section 16b.

[0081] The handle 16 of the vacuum cleaner 1 includes a first extension 16a extending in a first direction of the main body 10, as well as a second extension 16b extending in a second direction perpendicular to the first direction. Therefore, the vacuum cleaner 1 can be used by gripping either the first extension 16a or the second extension 16b, whichever is easier to grip, depending on the usage pattern. Furthermore, the vacuum cleaner 1 includes a curved portion 16c at the connection between the first extension 16a and the second extension 16b. Therefore, the vacuum cleaner 1 can be smoothly switched from one of the first extension 16a and the second extension 16b to the other without straining the user's wrists or other parts. Therefore, the present invention provides a vacuum cleaner 1 with high operability.

[0082] (1-2) The electric vacuum cleaner 1 may be the electric vacuum cleaner of (1-1) above, characterized in that the first extension 16a is provided with an operating part 16e.

[0083] With this configuration, the vacuum cleaner 1 can be made highly convenient, as the operating part 16e can be easily operated while gripping the handle part 16.

[0084] (1-3) The electric vacuum cleaner 1 may be the electric vacuum cleaner according to (1-1) to (1-2) above, characterized in that the first extension portion 16a extends from the other side of the first electric blower 14 in the first direction.

[0085] By configuring the electric vacuum cleaner 1 in this manner, it is possible to ensure sufficient space for arranging the first electric blower 14 compared to when the handle portion 16 is arranged in a position adjacent to the first electric blower 14 in the second direction.

[0086] (1-4) The electric vacuum cleaner 1 may be any of the electric vacuum cleaners (1-1) to (1-3) above, further comprising a battery 15a arranged alongside the first electric blower 14 in the second direction.

[0087] With this configuration, the electric vacuum cleaner 1 can prevent the battery 15a, which is a heavy object like the first electric blower 14, from being disposed in a position that is off-center in the first direction relative to the first electric blower 14. This prevents the heavy object from being disposed all the way in the first direction, making the electric vacuum cleaner 1 highly stable and easy to operate.

[0088] (1-5) The electric vacuum cleaner 1 may be the electric vacuum cleaner (1-4) above, characterized in that the center position of the first electric blower 14 is located on the opposite side of the side on which the battery 15a is located in the second direction, based on the center axis L extending in the first direction of the first dust collecting section 50.

[0089] As described above, the electric vacuum cleaner 1 has a layout in which battery 15a is disposed on one side in the second direction with respect to the central axis L of first dust collecting part 50, and first electric blower 14 is disposed on the other side so that its center is located on the other side, thereby enabling each part to be arranged compactly. This allows the electric vacuum cleaner 1 to be made smaller.

[0090] (1-6) The electric vacuum cleaner 1 may be any of the electric vacuum cleaners (1-1) to (1-5) above, characterized in that the first dust collecting section 50 and the battery 15a are arranged so as to overlap at least partially when viewed from the first direction.

[0091] By arranging first dust collecting section 50 and battery 15a in the layout described above, electric vacuum cleaner 1 can be made compact in the second direction intersecting with the first direction.

[0092] (1-7) The electric vacuum cleaner 1 is preferably the electric vacuum cleaner according to any one of (1-1) to (1-6) above, characterized in that the length of the first extension 16a is 6 cm or more and 10 cm or less.

[0093] By configuring the vacuum cleaner 1 in this way, it is possible to make it easy to use by gripping the first extension portion 16a.

[0094] (1-8) The electric vacuum cleaner 1 is preferably the electric vacuum cleaner according to any one of (1-1) to (1-7) above, characterized in that the length of the second extension 16b is not less than 6 cm and not more than 10 cm.

[0095] By configuring the vacuum cleaner 1 in this way, it is possible to make it easy to use by gripping the second extension portion 16b.

[0096] [Regarding the electric vacuum cleaner according to the second aspect of the present invention] A rechargeable vacuum cleaner such as that disclosed in Japanese Utility Model Publication No. 61-47961 has been provided. This rechargeable vacuum cleaner is provided with a fan motor and a rechargeable secondary battery that supplies power to the fan motor in the vacuum cleaner body, a floor suction port is connected to the suction port of the vacuum cleaner body via an extension tube, and the center of gravity of the vacuum cleaner body is located behind the center of the grip of the vacuum cleaner body.

[0097] Here, the rechargeable vacuum cleaner of the above-mentioned prior art has a problem that when the secondary battery becomes larger in size to improve the battery capacity, for example, the vacuum cleaner body becomes larger in size.

[0098] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vacuum cleaner that can be miniaturized while still being equipped with a battery.

[0099] (2-1) The electric vacuum cleaner 1 provided to solve the above-mentioned problems comprises a main body 10 having a first electric blower 14 (electric blower) that generates suction force, a first dust collection section 50 that is arranged on one side of the main body 10 in a first direction and that collects dust, a handle section 16 that is arranged on the other side of the main body 10 in the first direction, and a battery 15a that is arranged alongside the first electric blower 14 in a second direction that is perpendicular to the first direction, and is characterized in that the center position of the first electric blower 14 is located on the opposite side of the side on which the battery 15a is located in the second direction, based on a central axis L that extends in a direction along the first direction of the first dust collection section 50.

[0100] The electric vacuum cleaner 1 is laid out such that the battery 15a is disposed on one side in the second direction with respect to the central axis L of the first dust collecting part 50, and the first electric blower 14 is disposed on the other side so that the center position of the first electric blower 14 is on the other side. As a result, the electric vacuum cleaner 1 is equipped with the battery 15a, yet each part is compactly disposed, enabling miniaturization.

[0101] (2-2) The electric vacuum cleaner 1 may be the electric vacuum cleaner of (2-1) above, characterized in that the first dust collecting section 50 and the battery 15a are arranged so as to overlap at least partially when viewed from the first direction.

[0102] By arranging first dust collecting section 50 and battery 15a in the layout described above, electric vacuum cleaner 1 can be made compact in the second direction intersecting with the first direction.

[0103] (2-3) The electric vacuum cleaner 1 may be the electric vacuum cleaner according to (2-1) to (2-2) above, characterized in that the handle portion 16 extends from the other side of the first electric blower 14 in the first direction.

[0104] With this configuration, electric vacuum cleaner 1 can ensure a sufficient space for arranging first electric blower 14 at a position in the second direction relative to first electric blower 14.

[0105] (2-4) The electric vacuum cleaner 1 is preferably the electric vacuum cleaner of (2-1) to (2-3) above, characterized in that the handle portion 16 forms an opening 16d for inserting a hand, and the opening 16d is located on the other side of the first electric blower 14 in the first direction.

[0106] With this configuration, vacuum cleaner 1 can ensure a space in the second direction for arranging at least first electric blower 14.

[0107] (2-5) The electric vacuum cleaner 1 may be any of the electric vacuum cleaners (2-1) to (2-4) described above, further comprising a control unit 17 that controls the first electric blower 14, and the control unit 17 is preferably arranged on the opposite side of the battery 15a with respect to the first electric blower 14.

[0108] The electric vacuum cleaner 1 can be made compact by providing the battery 15a and the control unit 17 with the first electric blower 14 as the base in the layout described above.

[0109] (2-6) The electric vacuum cleaner 1 is preferably the electric vacuum cleaner of (2-1) to (2-5) above, characterized in that the main body 10 has a pipe portion 38x with an inlet 38y for sucking dust, the pipe portion 38x is arranged to be aligned with the first dust collecting portion 50 in the second direction, and the control portion 17 is present within the projection area of ​​the pipe portion 38x in the first direction.

[0110] As described above, the electric vacuum cleaner 1 is configured such that the pipe section 38x and the first dust collecting section 50 are aligned in the second direction, and the control section 17 is located within the projected area of ​​the pipe section 38x. This allows the battery 15a to be located as close as possible to the first electric blower 14, compared to a configuration in which the control section is located between the first electric blower 14 and the battery 15a, resulting in a more compact layout in the second direction. With this configuration, the electric vacuum cleaner 1 can be made even smaller.

[0111] [Regarding the electric vacuum cleaner according to the third aspect of the present invention] A rechargeable vacuum cleaner such as that disclosed in Japanese Utility Model Publication No. 61-47961 has been provided. This rechargeable vacuum cleaner is provided with a fan motor and a rechargeable secondary battery that supplies power to the fan motor in the vacuum cleaner body, a floor suction port is connected to the suction port of the vacuum cleaner body via an extension tube, and the center of gravity of the vacuum cleaner body is located behind the center of the grip of the vacuum cleaner body.

[0112] Here, the rechargeable vacuum cleaner of the above-mentioned prior art has a problem that when the secondary battery becomes larger in size to improve the battery capacity, for example, the vacuum cleaner body becomes larger in size.

[0113] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vacuum cleaner that can be miniaturized while still being equipped with a battery.

[0114] (3-1) The electric vacuum cleaner 1 provided to solve the above-mentioned problems comprises a main body 10 having a first electric blower 14 that generates suction force, a first dust collection section 50 that is arranged on one side of the main body 10 in a first direction and that collects dust, a handle section 16 that is arranged on the other side of the main body 10 in the first direction, a battery 15a that is arranged alongside the first electric blower 14 in a second direction that is perpendicular to the first direction, and a control section 17 that controls the first electric blower 14, wherein the control section 17 is arranged on the opposite side of the battery 15a with respect to the first electric blower 14.

[0115] By arranging battery 15a and control unit 17 based on first electric blower 14 in the layout described above, electric vacuum cleaner 1 can be made compact while still incorporating battery 15a.

[0116] (3-2) The electric vacuum cleaner 1 may be the electric vacuum cleaner of (3-1) above, characterized in that the first dust collecting section 50 and the battery 15a are arranged so as to overlap at least partially when viewed from the first direction.

[0117] By arranging first dust collecting section 50 and battery 15a in the layout described above, electric vacuum cleaner 1 can be configured compact in the second direction intersecting with the first direction while still being equipped with battery 15a.

[0118] (3-3) The electric vacuum cleaner 1 may be the electric vacuum cleaner according to (3-1) to (3-2) above, characterized in that the handle portion 16 extends from the other side of the first electric blower 14 in the first direction.

[0119] With this configuration, electric vacuum cleaner 1 can ensure a sufficient space for arranging first electric blower 14 at a position in the second direction relative to first electric blower 14.

[0120] (3-4) The electric vacuum cleaner 1 is preferably the electric vacuum cleaner of (3-1) to (3-3) above, characterized in that the handle portion 16 forms an opening 16d for inserting a hand, and the opening 16d is located on the other side of the first electric blower 14 in the first direction.

[0121] With this configuration, vacuum cleaner 1 can ensure a space in the second direction for arranging at least first electric blower 14.

[0122] (3-5) The electric vacuum cleaner 1 is preferably characterized in that, in the electric vacuum cleaners (3-1) to (3-4) above, the main body 10 has a pipe portion 38x having an inlet 38y for sucking dust, the pipe portion 38x is arranged to be aligned with the first dust collecting portion 50 in the second direction, and the control portion 17 is present within the projection area of ​​the pipe portion 38x in the first direction.

[0123] As described above, the electric vacuum cleaner 1 is configured such that the pipe section 38x and the first dust collecting section 50 are aligned in the second direction, and the control section 17 is located within the projected area of ​​the pipe section 38x. This allows the battery 15a to be located as close as possible to the first electric blower 14, compared to a configuration in which the control section is located between the first electric blower 14 and the battery 15a, resulting in a more compact layout in the second direction. With this configuration, the electric vacuum cleaner 1 can be made even smaller.

[0124] (3-6) The electric vacuum cleaner 1 may be any of the electric vacuum cleaners (3-1) to (3-5) above, characterized in that the control unit 17 is located on the other side of the opening 16d in the first direction.

[0125] With this configuration, vacuum cleaner 1 can ensure a space in the second direction for arranging at least first electric blower 14.

[0126] (3-7) The electric vacuum cleaner 1 may be any of the electric vacuum cleaners (3-1) to (3-6) above, characterized in that the exhaust air of the first electric blower 14 can be exhausted to the outside of the main body 10 through a path that passes through the control unit 17.

[0127] With this configuration, the electric vacuum cleaner 1 can cool the control unit 17 by utilizing the exhaust air from the first electric blower 14. This simplifies the cooling structure of the control unit 17, and can reduce the size of the electric vacuum cleaner 1.

[0128] (3-8) The electric vacuum cleaner 1 is preferably the electric vacuum cleaner (3-7) described above, characterized in that it has a case body 14a that covers the first electric blower 14, the case body 14a having an exhaust opening 14x on one side of a third direction perpendicular to the direction in which the control unit 17 and the first electric blower 14 are aligned and the first direction, and the main body 10 has an external exhaust opening 10x on the other side of the third direction.

[0129] With this configuration, the vacuum cleaner 1 can be configured so that the exhaust air discharged from the first electric blower 14 and discharged outside the case body 14a through the exhaust opening 14x travels to the external exhaust opening 10x provided on the opposite side in the third direction and then discharged. This allows the control unit 17 to be cooled more efficiently. Furthermore, with the above configuration, the vacuum cleaner 1 can ensure a long passage for the exhaust air. This allows the vacuum cleaner 1 to suppress noise associated with the flow of exhaust sound.

[0130] (3-9) The electric vacuum cleaner 1 may be the electric vacuum cleaner (3-8) above, characterized in that the external exhaust opening 10x and the exhaust opening 14x at least partially overlap when viewed from a third direction.

[0131] With this configuration, the electric vacuum cleaner 1 can ensure a sufficient passage for the exhaust airflow and suppress noise caused by the flow of exhaust air.

[0132] [Regarding the electric vacuum cleaner according to the fourth aspect of the present invention] A conventional vacuum cleaner is disclosed in Japanese Patent Laid-Open Publication No. 2004-283327, which generates a suction airflow and collects dust with the generated airflow. The vacuum cleaner disclosed in this patent document is composed of a vacuum cleaner main body having a dust case on the main body side that collects and stores dust, and an installation stand having a dust case on the installation stand side that stores dust from the dust case on the main body. When the vacuum cleaner main body is installed on the installation stand, the vacuum cleaner is provided with a means for discharging dust from the dust case on the main body side of the vacuum cleaner main body into the dust case on the installation stand. The vacuum cleaner disclosed in the patent document also has valves on both the vacuum cleaner main body and the installation stand, and the valves are opened by the airflow from the fan motor, allowing dust to be discharged from the dust case on the vacuum cleaner main body to the dust case on the installation stand.

[0133] However, the vacuum cleaner of Patent Document 1 has a problem in that dust tends to remain in the dust case on the main body side because the vacuum cleaner uses circulating air currents to collect dust in a dust case on the installation stand side.

[0134] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vacuum cleaner unit that can easily collect dust from the vacuum cleaner.

[0135] (4-1) To solve the above-mentioned problems, the vacuum cleaner system S is provided, which includes a vacuum cleaner 1 and a dust collection device 100. The vacuum cleaner 1 includes a main body 10 having a first electric blower 14 that generates suction force, and a first dust collection section 50 that collects dust. The first dust collection section 50 includes a first dust collection container 52 (outer cylinder) having a dust collection section inlet 52x, a structure 54 having a dust collection space exhaust section 80 and defining a dust collection space 56 between the first dust collection container 52 and the structure 54, and a bottom of the first dust collection container 52. The dust collection device 100 collects dust from the first dust collection section 50 of the electric vacuum cleaner 1 and is provided with a second dust collection section 110 in which the dust is collected, and a second electric blower 120 that generates suction force, and the electric vacuum cleaner 1 or the dust collection device 100 is provided with an opening means 150 that sets the opening and closing section 52c to an open state.

[0136] In the vacuum cleaner system S, opening 16d provided at the bottom of first dust collecting container 52 constituting first dust collecting section 50 of vacuum cleaner 1 can be opened and closed by opening / closing section 52c. Vacuum cleaner system S also includes dust collection device 100 for collecting dust from first dust collecting section 50 of vacuum cleaner 1, and is capable of collecting dust in second dust collecting section 110 by generating suction force with second electric blower 120. Furthermore, in vacuum cleaner system S, vacuum cleaner 1 or dust collection device 100 includes opening means 150 for opening opening / closing section 52c. Therefore, in vacuum cleaner system S, by opening opening / closing section 52c provided at the bottom of first dust collecting container 52 with opening means 150, dust collected in first dust collecting section 50 can fall under the influence of gravity. In addition, by operating the second electric blower 120 provided in the dust collection device 100 while the opening / closing part 52c is open, a suction force can be applied to the dust in a direction toward the second dust collecting part 110. Therefore, the electric vacuum cleaner system S can cause both gravity and the suction force of the second electric blower 120 to act on the dust collected in the first dust collecting part 50, and collect the dust in the second dust collecting part 110. Therefore, the electric vacuum cleaner system S can easily and smoothly collect the dust collected on the side of the electric vacuum cleaner 1 in the dust collection device 100.

[0137] (4-2) The electric vacuum cleaner system S may be characterized in that, in the electric vacuum cleaner system S of (4-1) above, the structure 54 has a first inner tube 60 (inner tube) having a tapered portion 70, and an extension portion 72 extending from the first inner tube 60 to the other side in the central axis direction.

[0138] Because the vacuum cleaner system S is configured as described above, when an airflow is generated that swirls in the dust collection space 56 and rises toward the tapered portion 70 at a position on the axial side of the dust collection space 56, the flow of the airflow and dust contained therein is obstructed by the extension portion 72. In other words, with the above-described configuration, the airflow and dust that rise from the bottom of the first dust collection container 52 at a position on the axial side of the dust collection space 56 are less likely to spread in a direction intersecting the axial direction. This makes it possible for the vacuum cleaner system S to make it less likely for dust such as hair and dust contained in the airflow to become entangled in the tapered portion 70 in the dust collection space 56.

[0139] In the above embodiment, the extending portion 72 is tubular, but the present invention is not limited to this. The electric vacuum cleaner 1 may be provided with, for example, a brush or comb teeth extending from the first inner cylinder 60 to the other side in the axial direction, as the extending portion 72.

[0140] (4-3) The electric vacuum cleaner system S may be the electric vacuum cleaner system S of (4-2) above, characterized in that the end of the extension part 72 on the other side in the central axis direction is spaced apart from the opening / closing part 52c.

[0141] With this configuration, the vacuum cleaner system S can prevent the air current rising from the bottom of the first dust collection container 52 from spreading outward while ensuring a sufficient internal volume of the dust collection space 56. In other words, with the above-described configuration, the vacuum cleaner system S makes it easier for dust to collect below the first inner cylinder 60 and inside the extension portion 72.

[0142] (4-4) In the electric vacuum cleaner system S, the first inner cylinder 60 may be characterized in that the other end in the central axis direction is closed in the electric vacuum cleaner system S described above in (4-2) to (4-3).

[0143] By adopting the above-described configuration, the electric vacuum cleaner system S can prevent the other axial end of the first inner cylinder 60 from being clogged with dust.

[0144] In this embodiment, an example has been shown in which the end portion on the other axial side of the first inner cylinder 60 is closed, but the present invention is not limited to this, and the end portion on the other axial side of the first inner cylinder 60 may not be closed. In addition, when the end portion on the other axial side of the first inner cylinder 60 is not closed, it is preferable to configure this portion so that it is less likely to become clogged with dust.

[0145] (4-5) The electric vacuum cleaner system S may be characterized in that, in the electric vacuum cleaner system S of (4-1) to (4-4) above, the structure 54 or the first dust collecting container 52 has a first guide portion 74 that extends from the upstream side of the swiveling direction toward the dust collecting portion inlet 52x as it moves from one side to the other side in the central axis direction.

[0146] Because the vacuum cleaner system S is provided with the first guide portion 74 as described above, the airflow that flows into the dust collection space 56 from the dust collection section inlet 52x is guided by the first guide portion 74 and smoothly directed toward the other axial side (the bottom of the first dust collection container 52). That is, in the vacuum cleaner 1 of this embodiment, the swirling airflow that flows into the dust collection space 56 from the dust collection section inlet 52x and is generated on one axial side (upper side) is made to more easily flow toward the other axial side, thereby making it possible to prevent dust such as hair and dirt contained in the airflow from getting wrapped around the tapered portion 70 of the first inner cylinder 60.

[0147] While the present embodiment has been described with reference to an example in which the first guide portion 74 is provided, the present invention is not limited thereto. The first guide portion 74 may not be provided, or another guide member may be provided in place of the first guide portion 74. When the first guide portion 74 is not provided, measures may be taken, such as optimizing the shape of the dust collection inlet 52x so that the airflow entering the dust collection inlet 52x faces the other axial side (the bottom of the first dust collection container 52). When another guide member is provided in place of the first guide portion 74, the other guide member may guide the airflow flowing from the dust collection inlet 52x into the dust collection space 56 smoothly toward the other axial side, as with the first guide portion 74, or may guide the airflow flowing from the dust collection inlet 52x so that the direction of the airflow changes to the other axial side before it makes one revolution around the circumferential direction of the dust collection space 56.

[0148] (4-6) The electric vacuum cleaner system S may be characterized in that, in the electric vacuum cleaner system S of (4-1) to (4-4) above, the structure 54 or the first dust collection container 52 has a second guide portion 76 that guides the airflow flowing from the dust collection portion inlet 52x (inlet) into the dust collection space 56, and the second guide portion 76 is arranged to extend in a direction intersecting the axial direction.

[0149] The vacuum cleaner 1 of this embodiment is provided with the second guide portion 76 as described above, and therefore can smoothly introduce and swirl the airflow from the dust-collecting-portion inlet 52x into the dust-collecting space 56.

[0150] In this embodiment, a configuration in which the above-mentioned second guide portion 76 is provided is exemplified, but the present invention is not limited to this, and a configuration in which the second guide portion 76 is not provided, or a configuration that performs the same function as the second guide portion 76 may be provided.

[0151] (4-7) The electric vacuum cleaner system S may be any of the electric vacuum cleaner systems S described above in (4-1) to (4-6), characterized in that the first dust collecting section 50 has a contact portion that contacts the structure 54 on one side of the dust collecting section inlet 52x in the central axis direction. The contact portion may be, for example, a brush, a blade, or a combination thereof.

[0152] Since the electric vacuum cleaner system S is configured as described above, when the structure 54 is removed from the first dust collecting section 50, the dust entangled in the structure 54 can be removed by the contact portion.

[0153] (4-8) The electric vacuum cleaner system S is preferably characterized in that, in the electric vacuum cleaner system S of (4-1) to (4-7) above, a contact portion (abutment portion 152, 152A) as an opening means 150 is provided on one side of the dust collection device 100 and the electric vacuum cleaner 1, and a contacted portion (abutment portion 52f, 52f1) is provided on the other side, and the opening / closing portion 52c opens when the abutment portion abuts on the contacted portion.

[0154] Since the electric vacuum cleaner system S is configured in this manner, by positioning the electric vacuum cleaner 1 relative to the dust collection device 100 so that the abutting portion and the abutted portion abut, the opening / closing portion 52c can be put into an open state by the opening means 150.

[0155] (4-9) The electric vacuum cleaner system S may be characterized in that, in the electric vacuum cleaner system S of (4-8) above, the abutting portion (abutting portion 152, 152A) abuts against the abutted portion (abutted portion 52f, 52f1), provided that the electric vacuum cleaner 1 is attached to the dust collection device 100.

[0156] Because the vacuum cleaner system S is configured as described above, connecting the vacuum cleaner 1 to the dust collection device 100 automatically brings the contacting portion 152 into contact with the contacted portion 52f, thereby opening the opening / closing portion 52c. This means that the vacuum cleaner system S does not require any additional operation to open the opening / closing portion 52c, making it highly convenient.

[0157] (4-10) The electric vacuum cleaner system S may be characterized in that, in the electric vacuum cleaner system S of the above (4-1) to (4-10), the structure 54 or the first dust collection container 52 has a first guide portion 74 that extends from the upstream side of the rotation direction toward the dust collection portion inlet 52x as it moves from one side to the other side in the central axis direction.

[0158] Because the vacuum cleaner 1 of this embodiment is provided with the first guide portion 74 as described above, the airflow that flows into the dust collection space 56 from the dust collection inlet 52x is guided by the first guide portion 74 and smoothly directed toward the other axial side (the bottom of the first dust collection container 52). That is, in the vacuum cleaner 1 of this embodiment, the swirling airflow that flows into the dust collection space 56 from the dust collection inlet 52x and is generated on one axial side (the upper side) can be made to easily flow toward the other axial side. This makes it possible to prevent dust such as hair and dust contained in the airflow from becoming entangled around the structure 54. Therefore, it is possible to provide a vacuum cleaner 1 that can prevent dust such as hair and dust from becoming entangled in the dust collection device.

[0159] (4-11) The electric vacuum cleaner system S may be characterized in that, in the electric vacuum cleaner system S of (4-10) above, it has an opening operation part that operates the abutting part 152 so that the abutting part 152 and the abutted part 52f abut.

[0160] With this configuration, the vacuum cleaner system S can bring the contacting portion 152 and the contacted portion 52f into contact with each other by operating the operating portion 16e, thereby opening the opening / closing portion 52c. This allows the vacuum cleaner system S to open the opening / closing portion 52c according to the user's intention.

[0161] (4-12) The electric vacuum cleaner system S may be the electric vacuum cleaner system S of (4-11) above, characterized in that the opening operation unit is provided in either the electric vacuum cleaner 1 or the dust collection device 100 together with a member that is operated by operating the operation unit 16e.

[0162] By configuring the vacuum cleaner system S in this way, a member that operates by operating the operating unit 16e can bring the abutting portion (abutting portion 152, 152A) into contact with the abutted portion (abutted portion 52f, 52f1), thereby placing the opening / closing unit 52c in an open state.

[0163] (4-13) The electric vacuum cleaner system S may be any of the electric vacuum cleaner systems S described above in (4-1) to (4-12), characterized in that the dust collection device 100 has a receiving portion 130 that receives the first dust collecting portion 50, and the receiving portion 130 has an opening means 150.

[0164] By configuring the vacuum cleaner system S in this way, the vacuum cleaner 1 is positioned so that the first dust collecting section 50 is received in the receiving section 130, and the opening / closing section 52c can be put into an open state by the opening means 150.

[0165] (4-14) The electric vacuum cleaner system S may be the electric vacuum cleaner system S of (4-1) to (4-13) above, characterized in that the dust collection device 100 has a contact portion 152 as the opening means 150, the opening / closing portion 52c is rotatable around a rotation axis, has a contacted portion 52f with which the contact portion 152 can contact in an area on one side of the rotation axis, and has a closing portion that closes the opening 16d in an area on the other side of the rotation axis, and when the contact portion 152 contacts the contacted portion 52f, the closing portion rotates away from the opening 16d to enter an open state.

[0166] With this configuration, the vacuum cleaner system S can open and close the opening means 150 by using the principle of leverage, with the pivot shaft 52e as the fulcrum and the point at which the abutting portion 152 abuts on the abutted portion 52f as the point of application. Therefore, as exemplified in the above embodiment, the closing portion 52g can be rotated without applying an excessively large force to the abutted portion 52f.

[0167] (4-15) The electric vacuum cleaner system S may be any of the electric vacuum cleaner systems S described above in (4-1) to (4-14), wherein the first dust collecting section 50 is characterized in that the opening surface of the opening 16d is inclined with respect to the central axis direction.

[0168] With this configuration, the vacuum cleaner system S is such that dust in the first dust collection chamber 52a tends to clump together, making it easier for the dust collection device 100 to suck it up.

[0169] (4-16) The electric vacuum cleaner system S is the electric vacuum cleaner system S of (4-8) above, in which the electric vacuum cleaner 1 is provided with a contact portion (contact portion 152, 152A) as an opening means 150, and the dust collection device 100 is provided with a contacted portion (contacted portion 52f, 52f1), and when the first abutment portion (contact portion 152A) abuts against the first contacted portion (contacted portion 52f1), the locking portion that locks the opening / closing portion 52c in the closed state is unlocked, and when the second abutment portion (contact portion 152) abuts against the second contacted portion (contacted portion 52f), the opening / closing portion 52c is opened.

[0170] [Regarding the electric vacuum cleaner according to the fifth aspect of the present invention] A conventional vacuum cleaner, such as that disclosed in Japanese Patent Application Laid-Open No. 2004-283327, generates a suction airflow and collects dust with the generated airflow. This vacuum cleaner comprises a vacuum cleaner main body having a dust case on the main body side that collects and stores dust, and an installation stand having a dust case on the installation stand side that stores dust from the dust case on the main body. When the vacuum cleaner main body is installed on the installation stand, the vacuum cleaner is provided with a means for discharging dust from the dust case on the main body side of the vacuum cleaner main body into the dust case on the installation stand. The vacuum cleaner disclosed in the aforementioned patent document has valves on both the vacuum cleaner main body and the installation stand, and the valves are opened by the airflow from the fan motor, allowing dust to be discharged from the dust case on the main body side to the dust case on the installation stand.

[0171] Furthermore, as disclosed in Japanese Patent Application Laid-Open No. 2016-26686, a cyclone dust collecting device is disclosed that is provided with an air filter that further filters the air that is exhausted from the inner cylinder and flows along the exhaust path.

[0172] However, if the configuration is similar to that of the electric vacuum cleaner disclosed in the above-mentioned patent document, the circulating airflow can collect dust in a dust case on the installation stand, but it is difficult to collect dust that adheres to the filter that filters the air discharged from the dust case.

[0173] Therefore, an object of the present invention is to realize a vacuum cleaner system S that is capable of collecting dust adhering to a filter that filters air discharged from a dust collection container.

[0174] (5-1) A vacuum cleaner system S provided to solve the above-mentioned problems includes a vacuum cleaner 1 and a dust collection device 100, in which the vacuum cleaner 1 includes a main body 10 having a first electric blower 14 that generates suction force, and a first dust collection section 50 that collects dust, and the first dust collection section 50 includes a first dust collection container 52 having a dust collection section inlet 52x, a structure 54 having a dust collection space exhaust section 80 and defining a dust collection space 56 between the first dust collection container 52 and the structure 54, an opening / closing section 52c that can open and close an opening (e.g., a waste port 52b) at the bottom of the first dust collection container 52, and ... a dust collection space 56 formed between the first dust collection container 52 and the structure 54. and the first electric blower 14 (the first filter 64g and the second filter 64h, or one of the first filter 64g and the second filter 64h if one of the first filter 64g and the second filter 64h is arranged), the structure 54 is formed so that the first inner tube 60 having the dust collection space exhaust section 80 extends toward the opening, and the dust collection device 100 collects dust from the first dust collection section 50 of the electric vacuum cleaner 1, and is characterized by comprising a second dust collection section 110 in which the dust is collected, and a second electric blower 120 that generates suction force.

[0175] In the vacuum cleaner system S, an opening provided at the bottom of a first dust collecting container 52 constituting a first dust collecting section 50 of the vacuum cleaner 1 can be opened and closed by an opening / closing section 52c. The vacuum cleaner system S also includes a dust collection device 100 for collecting dust from the first dust collecting section 50 of the vacuum cleaner 1, and is capable of generating suction force by a second electric blower 120 to collect the dust in a second dust collecting section 110. Furthermore, in the vacuum cleaner system S, the structure 54 is formed so that a first inner cylinder 60 having a dust collecting space exhaust section 80 extends toward the opening at the bottom of the first dust collecting container 52. Therefore, in the electric vacuum cleaner system S, by operating the second electric blower 120 provided in the dust collection device 100 while the opening / closing part 52c provided at the bottom of the first dust collecting container 52 is opened by the opening means 150, a suction force is applied to the filter via the first inner cylinder 60 forming the structure 54, and the filter is sucked toward the second dust collecting part 110. Therefore, the electric vacuum cleaner system S can collect dust adhering to the filter that filters the air discharged from the first dust collecting container 52.

[0176] (5-2) The electric vacuum cleaner system S may be the electric vacuum cleaner system S of (5-1) above, characterized in that the storage space in which the filters (the first filter 64g and the second filter 64h, or one of the first filter 64g and the second filter 64h if either one of them is provided) are arranged is connected to the first inner tube 60, and the first inner tube 60 and the second dust collecting section 110 are connected when the opening / closing section 52c is open.

[0177] Because the electric vacuum cleaner system S is configured as described above, the suction force generated by the second electric blower 120 provided in the second dust collecting unit 110 can be reliably applied to the filter disposed in the accommodation space. This allows the electric vacuum cleaner system S to more reliably collect dust adhering to the filter that filters the air discharged from the dust collection container.

[0178] (5-3) The electric vacuum cleaner system S may be the electric vacuum cleaner system S of (5-1) to (5-2) above, characterized in that the electric vacuum cleaner 1 or the dust collection device 100 includes an opening means 150 that opens the opening / closing part 52c.

[0179] By configuring the vacuum cleaner system S in this manner, the opening means 150 can open the opening / closing section 52c provided at the bottom of the first dust collection container 52, and dust adhering to the filter that filters the air discharged from the dust collection container can be collected in the second dust collection section 110.

[0180] (5-4) The electric vacuum cleaner system S may be the electric vacuum cleaner system S of (5-3) above, characterized in that a contact portion (contact portion 152, 152A) as an opening means 150 is provided on one side of the dust collection device 100 and the electric vacuum cleaner 1, and a contacted portion (contacted portion 52f, 52f1) is provided on the other side, and the opening / closing portion 52c opens on the condition that the contact portion abuts against the contacted portion.

[0181] Since the electric vacuum cleaner system S is configured in this manner, by positioning the electric vacuum cleaner 1 relative to the dust collection device 100 so that the abutting portion and the abutted portion abut, the opening / closing portion 52c can be put into an open state by the opening means 150.

[0182] (5-5) The electric vacuum cleaner system S may be characterized in that, in the electric vacuum cleaner system S of (5-1) to (5-4) above, the dust collection device 100 is provided with a receiving portion 130 that receives the first dust collecting portion 50, and the receiving portion 130 has an opening means 150.

[0183] By configuring the vacuum cleaner system S in this way, the vacuum cleaner 1 is positioned so that the first dust collecting section 50 is received in the receiving section 130, and the opening / closing section 52c can be put into an open state by the opening means 150.

[0184] (5-6) The electric vacuum cleaner system S may be the electric vacuum cleaner system S of (5-1) to (5-5) above, characterized in that the dust collection device 100 has an abutment portion 152 as the opening means 150, the opening / closing portion 52c is rotatable around a rotation axis, has an abutted portion 52f with which the abutment portion 152 can abut in an area on one side of the rotation axis, and has a closing portion that closes an opening (e.g., waste outlet 52b) in an area on the other side of the rotation axis, and when the abutment portion 152 abuts against the abutted portion 52f, the closing portion rotates away from the opening to enter the open state.

[0185] With this configuration, the vacuum cleaner system S can open and close the opening means 150 by using the principle of leverage, with the pivot shaft 52e as the fulcrum and the point at which the abutting portion 152 abuts on the abutted portion 52f as the point of application. Therefore, as exemplified in the above embodiment, the closing portion 52g can be rotated without applying an excessively large force to the abutted portion 52f.

[0186] (5-7) The electric vacuum cleaner system S may be any of the electric vacuum cleaner systems S of (5-1) to (5-6) above, characterized in that it includes an airtight member 160 provided on either the receiving portion 130 or the bottom of the first dust collecting container 52, and the first dust collecting container 52 and the receiving portion 130 are in airtight contact with each other by the airtight member 160.

[0187] According to this configuration, the first dust collecting container 52 can be airtightly connected to the receiving portion 130 when the first dust collecting container 52 is fitted into the receiving portion 130. This allows the dust to be collected smoothly when being sucked from the first dust collecting portion 50 side to the second dust collecting portion 110 side.

[0188] (5-8) The electric vacuum cleaner system S may be any of the electric vacuum cleaner systems S described above in (5-1) to (5-7), characterized in that the electric vacuum cleaner is provided with an open / close valve for adjusting the air flowing into the dust collection space.

[0189] According to this configuration, by operating the second electric blower 120 with the on-off valve closed, it is possible to collect dust adhering to the filter that filters the air discharged from the dust collection container. (5-9) The electric vacuum cleaner system S may be any of the electric vacuum cleaner systems S described above in (5-1) to (5-8), characterized in that the electric vacuum cleaner is provided with an opening / closing valve capable of opening and closing an opening in the main body 10 that faces the dust collection section inlet 52x. According to this configuration, by operating the second electric blower 120 with the on-off valve closed, it is possible to collect dust adhering to the filter that filters the air discharged from the dust collection container.

[0190] (5-10) The electric vacuum cleaner system S is the electric vacuum cleaner system S of (5-4) above, in which the electric vacuum cleaner 1 is provided with a contact portion (contact portion 152, 152A) as an opening means 150, and the dust collection device 100 is provided with a contacted portion (contacted portion 52f, 52f1), and when the first abutment portion (contact portion 152A) abuts against the first contacted portion (contacted portion 52f1), the locking portion that locks the opening / closing portion 52c in the closed state is unlocked, and when the second abutment portion (contact portion 152) abuts against the second contacted portion (contacted portion 52f), the opening / closing portion 52c is opened.

[0191] [Regarding the vacuum cleaner according to the sixth aspect of the present invention] In order to solve the same problem as the problem described above in [Regarding the electric vacuum cleaner according to the fifth aspect of the present invention], the present invention aims to realize an electric vacuum cleaner system S that is capable of collecting dust that adheres to a filter that filters the air discharged from a dust collection container.

[0192] (6-1) A vacuum cleaner system S provided to solve the above-mentioned problems includes a vacuum cleaner 1 and a dust collection device 100, in which the vacuum cleaner 1 includes a main body 10 having a first electric blower 14 that generates suction force and an external exhaust opening 10x for discharging exhaust air from the first electric blower 14 to the outside, and a first dust collection unit 50 that collects dust, and the first dust collection unit 50 includes a first dust collection container 52 having a dust collection unit inlet 52x, a dust collection space exhaust unit 80, and a structure 54 that forms a dust collection space 56 between itself and the first dust collection container 52, and a valve 54 that opens and closes an opening of the first dust collection container 52 (e.g., a waste port 52b). and a filter (first filter 64g and second filter 64h, or one of the first filter 64g and second filter 64h if either one of the first filter 64g and second filter 64h is arranged) arranged between the structure 54 and the first electric blower 14, the electric vacuum cleaner is provided with an openable / closeable open / close valve for adjusting the air flowing into the dust collection space, and the dust collection device 100 collects dust from the first dust collection section 50 of the electric vacuum cleaner 1, and is characterized in that it comprises a second dust collection section 110 in which the dust is collected, and a second electric blower 120 that generates suction force.

[0193] With this configuration, by operating the second electric blower 120 with the on-off valve closed, air can be made to flow more easily from the external exhaust opening 10x through the filter to the dust collection device 100. This makes it possible to collect dust adhering to the filter that filters the air discharged from the first dust collection container 52. Therefore, the vacuum cleaner system S can collect dust adhering to the filter that filters the air discharged from the dust collection container.

[0194] (6-2) A vacuum cleaner system S provided to solve the above-mentioned problems includes a vacuum cleaner 1 and a dust collection device 100, in which the vacuum cleaner 1 includes a main body 10 having a first electric blower 14 that generates suction force and an external exhaust opening 10x for discharging exhaust air from the first electric blower 14 to the outside, and a first dust collection unit 50 in which dust is collected, and the first dust collection unit 50 includes a first dust collection container 52 having a dust collection unit inlet 52x, a dust collection space exhaust unit 80, a structure 54 that forms a dust collection space 56 between itself and the first dust collection container 52, and a valve 54 that can open and close an opening of the first dust collection container 52 (e.g., a waste port 52b). The vacuum cleaner has an opening / closing section (for example, opening / closing section 52c) and a filter (first filter 64g and second filter 64h, or one of the first filter 64g and second filter 64h if one of them is arranged) arranged between the structure 54 and the first electric blower 14, and the electric vacuum cleaner is provided with an opening / closing valve that can open and close an opening in the main body 10 that faces the dust collection section inlet 52x, and the dust collection device 100 collects dust from the first dust collection section 50 of the electric vacuum cleaner 1, and is characterized in that it is equipped with a second dust collection section 110 in which dust is collected, and a second electric blower 120 that generates suction force.

[0195] With this configuration, by operating the second electric blower 120 with the on-off valve closed, air can be made to flow more easily from the external exhaust opening 10x through the filter to the dust collection device 100. This makes it possible to collect dust adhering to the filter that filters the air discharged from the first dust collection container 52. Therefore, the vacuum cleaner system S can collect dust adhering to the filter that filters the air discharged from the dust collection container.

[0196] (6-3) The electric vacuum cleaner system S may have the above-mentioned configurations (5-3) to (5-7) in the electric vacuum cleaner system S described in (6-1) to (6-2) above.

[0197] The present invention is not limited to the above-described embodiments and modifications, and other embodiments may be possible within the scope of the claims, based on the teachings and spirit of the invention. The components of the above-described embodiments may be arbitrarily selected and combined. Furthermore, any component of the embodiment may be arbitrarily combined with any component described in the Summary of the Invention or any component embodying any component described in the Summary of the Invention. The present invention intends to obtain rights to these as well through amendments to this application or divisional applications, etc. [Industrial Applicability]

[0198] The present invention can be suitably used in electric vacuum cleaners in general. [Explanation of symbols]

[0199] 1: Vacuum cleaner 10: Main body 10x: External exhaust openings 14:First electric blower 14a: Case body 14x: Exhaust opening 15a: Battery 16: Handle 16a: First extension part 16b: Second stretching part 16c: Curved section 16d: opening 16e:Operation unit 17: Control section 38x: pipe section 38y: Inlet 50:First dust collection section (dust collection section) 52: First dust collection container (outer cylinder) 52a: First dust collection room 52c: Opening and closing section 52e: Rotating shaft 52f: Abutted part 52g:Occluded area 52x: Dust collection inlet 54 :Structure 56: Dust collection space 60: First inner cylinder (inner cylinder) 70: Tapered section 72: Extension part 74: First guide part 76: Second guide part 80: Dust collection space exhaust section 94: Second inner cylinder filter (filter) 100: Dust collection device 110:Second dust collection section 120:Second electric blower 130: Receiving 150: Opening means 152: Contact part 160: Airtight material S: Vacuum cleaner system

Claims

1. Equipped with a vacuum cleaner and a dust collection device, The vacuum cleaner comprises: a main body having a first electric blower that generates suction force; a first dust collecting section in which dust is collected; It is equipped with The first dust collecting section, a first dust collecting container formed of a hollow cylindrical body and having a dust collecting unit inlet; a structure having a dust collection space exhaust portion, the structure being disposed so that its axis position is substantially aligned with that of the first dust collection container, and the structure defining a dust collection space between itself and the first dust collection container; an opening / closing part that can open and close an opening at a bottom of the first dust collecting container; and the dust collecting unit inlet is provided at a middle portion in the axial direction of the circumferential portion of the first dust collecting container, and is capable of introducing air in a tangential direction of the inner circumferential surface of the first dust collecting container, the structure has a tapered portion whose outer shape becomes smaller from one side in the central axis direction of the first dust collecting portion toward the other side, which is the bottom side of the first dust collecting container, and which has a first guide portion on its outer periphery, the first guide portion is rib-shaped and extends from one side to the other side in the axial direction so as to approach the inlet of the dust collection unit from a position upstream of the inlet of the dust collection unit in the swirling direction of the airflow, and guides the swirling airflow that flows into the dust collection space from the inlet of the dust collection unit to the other side in the axial direction, the dust collection device receives the first dust collection part of the vacuum cleaner and collects dust from an opening / closing part of the first dust collection part, and includes a second dust collection part in which dust is collected, and a second electric blower that generates suction force; The vacuum cleaner system is characterized in that the vacuum cleaner or the dust collection device is provided with an opening means for opening the opening / closing part.

2. 2. The electric vacuum cleaner system according to claim 1, wherein the structure includes an inner cylinder having the tapered portion, and an extension portion extending from the inner cylinder to the other side in the central axis direction.

3. the structure includes an inner cylinder having the tapered portion and an extension portion extending from the inner cylinder to the other side in the central axis direction, The vacuum cleaner system according to claim 1, wherein the extension abuts against the bottom of the opening / closing part in the closed state.

4. the dust collection device includes a receiving portion that receives the first dust collecting portion, an airtight member provided on either the receiving portion or the bottom of the first dust collecting container; 4. The vacuum cleaner system according to claim 1, wherein the first dust collecting container and the receiving portion are in airtight contact with each other by the airtight member.

5. 4. The vacuum cleaner system according to claim 2, wherein the extension portion has a cylindrical shape having the same outer dimensions from the upper end to the lower end, or a tapered cylindrical shape whose outer dimensions become smaller from the upper end to the lower end.

6. The electric vacuum cleaner system according to any one of claims 1 to 5, wherein the first dust collecting section has an opening inclined with respect to a central axis direction of the first dust collecting section.

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