A cleaning tool set comprising a vacuum cleaner having a dust collection section for storing dust, and a collection device for collecting dust from the dust collection section.

Abstract

The objective is to provide a cleaning tool set that can eliminate the problem of dust getting stuck in the dust collection section and reduce the amount of dust remaining in the dust collection section. [Solution] The cleaning tool set of the present disclosure includes a vacuum cleaner having a dust storage section that forms a dust storage space for storing dust sucked up during cleaning work; a recovery duct that is connected to the dust storage section and forms a flow path for dust that flows out from the dust storage section; a dust collection source that generates a dust collection force for sucking out dust from the dust storage section through the recovery duct; and a dust collection regulating section that increases the vacuum level in the recovery duct by restricting the dust collection force of the dust collection source from acting on the dust storage space of the dust storage section connected to the recovery duct, and also allows the dust collection force of the dust collection source to act on the dust storage space of the dust storage section when predetermined conditions are met.

Description

Technical Field

[0001] The present invention relates to a cleaning tool set including a vacuum cleaner having a dust storage part for storing dust and a recovery device for recovering dust from the dust storage part.

Background Art

[0002] Patent Document 1 discloses a cleaning tool set 300 shown in FIG. 24. This cleaning tool set 300 includes a vacuum cleaner 310 and a recovery device 320 configured to be able to hold the vacuum cleaner 310.

[0003] The vacuum cleaner 310 has a suction source 311 that generates a suction force for sucking dust, a substantially cylindrical dust storage part 312 provided below the suction source 311, and a suction pipe 313 extending vertically on the rear side of the dust storage part 312. Further, a suction nozzle 314 is attached to the lower end of the suction pipe 313.

[0004] The suction nozzle 314 is configured such that when the suction source 311 operates, dust on the floor surface flows in together with air. The suction pipe 313 forms a flow path through which the dust and air flowing in from the suction nozzle 314 flow upward, and is connected to the peripheral wall part of the dust storage part 312. The connection part between the suction pipe 313 and the peripheral wall part of the dust storage part 312 is formed so as to communicate the flow path of the suction pipe 313 with the dust storage space of the dust storage part 312. Specifically, this connection part is configured such that the air flowing from the suction pipe 313 into the dust storage part 312 flows along the inner peripheral surface of the peripheral wall part 315 of the dust storage part 312 and forms a swirling flow.

[0005] As shown in FIG. 25, the dust storage part 312 has a lid body 316 that closes the opening at the lower end of the peripheral wall part 315, and a rotation connection part 317 that connects the lid body 316 and the peripheral wall part 315 while allowing the lid body 316 to rotate downward.

[0006] As shown in Figure 24, the dust storage unit 312 is configured to be attachable to the recovery device 320. The recovery device 320 has a recovery duct 321 into which the lower part of the dust storage unit 312 can be fitted, and the recovery duct 321 extends in the vertical direction. At the lower end of the recovery duct 321, there is a recovery unit 322 for storing dust recovered from the dust storage unit 312, and below the recovery unit 322, there is a dust collection source 323 that generates a downward dust suction force through the recovery unit 322 and the recovery duct 321.

[0007] When the user fits the dust collection unit 312 onto the upper end of the recovery duct 321 and activates the dust collection source 323, the dust collection force of the dust collection source 323 causes the lid 316 of the dust collection unit 312 to rotate downward around the rotating connection part 317, as shown in Figure 26. As a result, the internal space of the dust collection unit 312 is opened, and the dust inside the dust collection unit 312 flows into the recovery unit 322 through the recovery duct 321. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] International Publication No. 2022 / 119097 [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] Even if the dust collection source 323 is activated while the lid 316 is rotated downward, it is expected that some of the dust in the dust storage section 312 will remain trapped inside the dust storage section 312 and continue to stay there.

[0010] The purpose of this disclosure is to provide a cleaning tool set that can eliminate the condition in which dust gets caught in the dust collection section and reduce the amount of dust that remains in the dust collection section. [Means for solving the problem]

[0011] The cleaning tool set in this disclosure includes a vacuum cleaner having a dust storage section that forms a dust storage space for storing dust sucked up during cleaning work; a recovery duct that is connected to the dust storage section and forms a flow path for dust that flows out from the dust storage section; a dust collection source that generates a dust collection force for sucking out dust from the dust storage section through the recovery duct; and a dust collection regulating section that increases the vacuum level in the recovery duct by restricting the dust collection force of the dust collection source from acting on the dust storage space of the dust storage section connected to the recovery duct, and also allows the dust collection force of the dust collection source to act on the dust storage space of the dust storage section when predetermined conditions are met. [Effects of the Invention]

[0012] The above-described technology can eliminate the condition in which dust gets caught in the dust collection section, thereby reducing the amount of dust that remains in the dust collection section. [Brief explanation of the drawing]

[0013] [Figure 1] Side view of a vacuum cleaner (first embodiment) [Figure 2] Perspective view of the dust collection section of a vacuum cleaner. [Figure 3] Cross-sectional view of the lower part of the dust storage section [Figure 4] Perspective view of the cleaning tool set [Figure 5] Cross-sectional view of the dust storage section [Figure 6] Cross-section of a cleaning tool set [Figure 7] Perspective view of the recovery device [Figure 8] Perspective view of the dust storage section [Figure 9] Cross-sectional view of the dust storage section [Figure 10] Cross-sectional view of the lower part of the dust storage section (second embodiment) [Figure 11] Bottom view of the dust storage section [Figure 12] Perspective view of the lower part of the dust storage section [Figure 13] Cross-sectional view of the lower part of the dust storage section connected to the recovery duct of the recovery device. [Figure 14]Cross-sectional view of the connection part between the suction nozzle and the suction pipe of the vacuum cleaner (3rd Embodiment) [Figure 15] Cross-sectional view of the cleaning tool set (4th Embodiment) [Figure 16] Enlarged cross-sectional view of the vacuum cleaner around the dust discharge port [Figure 17] Enlarged cross-sectional view of the vacuum cleaner around the dust discharge port [Figure 18] Cross-sectional view of the cleaning tool set (5th Embodiment) [Figure 19] Enlarged cross-sectional view of the vacuum cleaner around the dust discharge port [Figure 20] Enlarged cross-sectional view of the vacuum cleaner around the dust discharge port [Figure 21] Cross-sectional view of the cleaning tool set [Figure 22] Cross-sectional view of the cleaning tool set [Figure 23] Cross-sectional view of the cleaning tool set [Figure 24] Perspective view of the conventional cleaning tool set [Figure 25] Perspective view of the conventional vacuum cleaner [Figure 26] Cross-sectional view of the conventional cleaning tool set

Mode for Carrying Out the Invention

[0014] Hereinafter, the first to fifth embodiments of the cleaning tool set will be described in detail with reference to the drawings. However, for the ease of understanding of those skilled in the art, for example, the detailed description of already well-known matters or the redundant description of substantially the same configuration may be omitted. The attached drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims thereby.

[0015] <First Embodiment> FIG. 1 is a side view of a stick-type vacuum cleaner 100. The vacuum cleaner 100 will be described with reference to FIG. 1.

[0016] (Overall structure of the vacuum cleaner) The vacuum cleaner 100 comprises a housing 110 that houses a suction source 111 that generates suction force to suck up dust, and a dust collection section 140 attached to the lower side of the housing 110 to store the dust sucked up by the suction force of the suction source 111. A storage battery 114 is housed above the suction source 111 inside the housing 110. The storage battery 114 stores power to operate the suction source 111 and is electrically connected to the suction source 111. The suction source 111 is configured to suck up air in the dust collection section 140 and may have, for example, a motor that receives power from the storage battery 114 to generate rotational force, and a rotating blade configured to generate an upward airflow when rotated by the motor.

[0017] Between the housing 110 and the dust collection section 140, a filter 112 is positioned to allow air to pass through while capturing dust contained in the air. In addition, a gripping section 113 formed to be held by the user and a suction pipe 120 are positioned on the front side of the housing 110 and the dust collection section 140, forming a flow path 123 through which dust sucked in by the suction source 111 flows toward the dust collection section 140. Dust sucked in by the suction source 111 flows toward the dust collection section 140 through the flow path 123.

[0018] The suction tube 120 extends vertically below the grip portion 113. More specifically, the suction tube 120 has a base tube portion 121 integrally formed with the housing 110 and the grip portion 113, and an extension tube portion 122 extending downward from the base tube portion 121. Within the base tube portion 121, the flow path 123 is bent toward the dust collection portion 140. The extension tube portion 122 is detachable from the base tube portion 121. A suction nozzle 130 is attached to the lower end of the extension tube portion 122. The suction tube 120 extends downward relative to the grip portion 113, housing 110, and dust collection portion 140, and has a length that allows the user to place the suction nozzle 130 on the floor surface without having to bend down. A suction port 131 is formed on the front part of the lower surface of the suction nozzle 130, into which dust from the floor surface is sucked in by the suction force of the suction source 111, and a space is formed inside the suction nozzle 130 that connects the suction port 131 to the flow path 123.

[0019] As shown in Figure 2, the dust storage section 140 forms a dust storage space 148 for storing dust sucked in by the suction force of the suction source 111, and has a substantially cylindrical peripheral wall portion 141 and an upper cover 142 that closes the opening at the upper end of the peripheral wall portion 141. The upper part of the upper cover 142 is configured to accommodate the filter 112 shown in Figure 1. The upper cover 142 has a plurality of through holes 145 that penetrate vertically, and when the suction source 111 shown in Figure 1 is activated, the air in the dust storage space 148 flows out through these through holes 145.

[0020] The opening at the lower end of the peripheral wall portion 141 is used as a dust discharge port 143 for discharging dust from the dust storage portion 140, as shown in Figure 3. In this embodiment, the collection device 200 shown in Figure 4 is used to discharge dust from the dust storage portion 140 through the dust discharge port 143. This collection device 200 is configured to generate a suction force to discharge dust from the dust storage portion 140. This collection device 200 and the vacuum cleaner 100 constitute a cleaning tool set 101.

[0021] The lower end portion of the dust storage section 140 is provided with a dust collection restricting section 150 that restricts the dust collection force of the recovery device 200 from acting on the dust inside the dust storage section 140 until predetermined conditions are met. In this embodiment, the dust collection restricting section 150 includes a lid 151 for opening and closing the dust discharge port 143, and a magnetic holding section 152 that generates a magnetic attraction force to hold the lid 151 in the closed position when the dust discharge port 143 is closed. The lid 151 shown in Figure 3 is in the open position when the dust discharge port 143 is open. The lid 151 shown in Figure 5 is in the closed position when the dust discharge port 143 is closed. The lid 151 is attached to the lower end portion of the peripheral wall 141 so as to be rotatable vertically between the closed position and the open position.

[0022] The magnetic holding portion 152 includes a first magnetic piece 153 attached to the lid 151 and a second magnetic piece 154 fixed to the lower end portion of the peripheral wall 141. One of the first magnetic piece 153 and the second magnetic piece 154 is made of a magnet, and the other of the first magnetic piece 153 and the second magnetic piece 154 is made of a magnetic material (for example, iron) that is attracted by the magnet.

[0023] As shown in Figure 2, an inlet 144 is formed in the peripheral wall portion 141, opening tangentially to the inner surface of the peripheral wall portion 141. The inlet 144 is connected to the flow path 123 of the base end pipe portion 121 shown in Figure 1, and when the suction source 111 is activated, air containing dust flows into the dust storage portion 140 through the inlet 144. This air becomes a swirling flow that flows along the inner surface of the peripheral wall portion 141.

[0024] As shown in Figure 3, a roughly cylindrical filter tube 146, which tapers downwards, is housed within the dust storage space 148 of the dust storage section 140. A through hole 145 formed in the upper cover 142 communicates with the internal space of the filter tube 146.

[0025] As shown in Figure 5, the filter cylinder 146 is arranged substantially coaxially with the dust collection section 140 and has a substantially circular cross-section. The dust collection space 148 is formed in an annular shape between the filter cylinder 146 and the inner surface of the peripheral wall 141 of the dust collection section 140, and the swirling flow described above flows through this annular dust collection space 148.

[0026] The filter cylinder 146 has numerous vents (not shown) that are large enough to capture dust while allowing air to flow into the annular dust storage space 148. For example, the filter cylinder 146 may be made of a filter mesh. When the suction source 111 shown in Figure 1 is activated, air flows in through the inlet 144, and this air becomes a swirling flow that flows through the annular dust storage space 148 of the dust storage section 140. Due to the centrifugal force of the swirling flow, the dust contained in the air that flows into the dust storage section 140 flows near the inner surface of the peripheral wall 141 of the dust storage section 140 rather than near the filter cylinder 146. Therefore, clogging of the vents of the filter cylinder 146 is unlikely to occur. The air flowing near the filter cylinder 146 passes through the vents of the filter cylinder 146 and flows into the interior of the filter cylinder 146. The air can then flow upward through the through-hole 145 of the upper cover 142.

[0027] (Overall structure of the recovery device) As shown in Figure 4, the collection device 200 is configured to accommodate a dust storage section 140 that contains dust. More specifically, the collection device 200 has a support plate 210 that is roughly rectangular in shape in plan view, a housing 220 provided on the support plate 210, a collection duct 230 extending upward from the upper surface of the housing 220, and a pipe holding section 240 provided on the front part of the collection duct 230. The upper end of the collection duct 230 is configured to accommodate the dust storage section 140, and the collection duct 230 supports the dust storage section 140 during the dust collection operation from the dust storage section 140 to the collection device 200. When the lid 151 moves to the open position, the dust discharge port 143 of the dust storage section 140 opens downward within the collection duct 230, and the dust in the dust storage section 140 can fall out from the dust discharge port 143. Furthermore, as shown in Figure 6, the recovery duct 230 forms a flow path 231 that extends vertically to allow dust discharged from the dust outlet 143 of the dust storage section 140 to fall. The upper end portion of this flow path 231 is wide enough to allow the cover 151 attached to the dust storage section 140 to rotate up and down.

[0028] As shown in Figure 7, the pipe holding portion 240 has a retaining groove 241 that opens forward and extends vertically. The retaining groove 241 has a shape complementary to the rear of the base pipe portion 121 of the vacuum cleaner 100. The presence of the pipe holding portion 240 encourages the user to position the suction pipe 120 of the vacuum cleaner 100 in front of the housing 220 and recovery duct 230 of the recovery device 200 and to fit the base pipe portion 121 into the retaining groove 241. In other words, it encourages the user to attach the vacuum cleaner 100 to the recovery device 200 in a predetermined orientation.

[0029] When the user inserts the base pipe section 121 into the retaining groove 241, the suction pipe 120 is held in a position extending downward along the front surface of the recovery duct 230 and the housing 220, as shown in Figure 6. To support the suction nozzle 130 attached to the lower end of the suction pipe 120, the front portion of the support plate 210 protrudes forward relative to the housing 220, as shown in Figure 7, and a support block 211 is provided on this front portion. The support block 211 protrudes upward relative to the upper surface of the support plate 210, and as shown in Figure 6, the rear portion of the suction nozzle 130 rests on the support block 211. The suction port 131 of the suction nozzle 130 is open in mid-air in front of the support block 211.

[0030] The housing 220 of the collection device 200 contains a dust collection source 221 that generates suction force to suck dust out of the dust collection section 140 of the vacuum cleaner 100 via a collection duct 230, and a collection section 222 that stores the dust sucked out from the dust collection section 140. The dust collection source 221 may consist of, for example, a motor that generates rotational force and a rotating blade configured to generate a downward airflow when rotated by this motor. The collection section 222 is located above the dust collection source 221, and a filter 223 that captures dust while allowing air to pass through is located between the collection section 222 and the dust collection source 221. The dust collection source 221 is connected to the collection section 222 via the filter 223. The flow path 231 of the collection duct 230 bends toward the collection section 222 at the front of the collection section 222 and communicates with the internal space of the collection section 222.

[0031] The dust collection section 140 is fitted into the upper end portion of the recovery duct 230, so that the dust collection section 140 and housing 110 of the vacuum cleaner 100 are supported by the recovery duct 230 and housing 220 of the recovery device 200. At this time, the front gripping section 113 and suction pipe 120 of the dust collection section 140 and housing 110 are supported by the support block 211. The rear part of the suction nozzle 130 is placed on the support block 211, but the front part of the suction nozzle 130 is in front of the support block 211 and is floating above the support plate 210.

[0032] (Vacuum cleaner operation) When the suction source 111 is activated, the suction force of the suction source 111 draws air from the dust storage section 140 through the filter cylinder 146. The same amount of air is drawn into the suction nozzle 130 as the air drawn out of the dust storage section 140, and dust from the floor surface flows into the suction nozzle 130 along with this air. The air containing the dust then flows through the passage 123 of the suction pipe 120 and enters the dust storage section 140 through the inlet 144.

[0033] Since the inlet 144 opens tangentially to the inner surface of the peripheral wall 141 of the dust storage section 140, the air flowing into the dust storage section 140 from the inlet 144 flows along the inner surface of the peripheral wall 141, creating a swirling flow. Due to the centrifugal force of the swirling flow, the dust contained in the swirling flow flows closer to the inner surface of the peripheral wall 141 of the dust storage section 140 rather than near the filter cylinder 146. This dust moves downward due to gravity and accumulates on the lid 151.

[0034] The centrifugal force of the swirling flow reduces the amount of dust flowing near the filter cylinder 146, thereby suppressing clogging of the vent holes in the filter cylinder 146. Air flowing near the filter cylinder 146 can flow into the filter cylinder 146 through the vent holes provided in the filter cylinder 146. The air that flows into the filter cylinder 146 flows out from the dust collection section 140 through the through-holes 145 formed in the upper cover 142. Even if the air that passes through these through-holes 145 contains fine dust, this dust is captured by the filter 112 installed on the upper cover 142.

[0035] (Operation of the recovery device) After completing the cleaning work, the user attaches the vacuum cleaner 100 to the collection device 200. Specifically, the user positions the suction tube 120 of the vacuum cleaner 100 in front of the housing 220 and collection duct 230 of the collection device 200. In this state, the user fits the base tube portion 121 of the suction tube 120 into the retaining groove 241 of the tube holder portion 240, while fitting the lower end portion of the dust collection portion 140 into the upper end portion of the collection duct 230.

[0036] Subsequently, when the dust collection source 221 is activated, the dust collection force of the dust collection source 221 acts downward on the lid 151 attached to the dust storage section 140 through the recovery section 222 and the recovery duct 230. For a while after the dust collection source 221 starts operating, the lid 151 is held in the closed position by the magnetic attraction force acting between the first magnetic piece 153 and the second magnetic piece 154.

[0037] While the lid 151 is held in the closed position, the dust collection source 221 draws air from the flow path 231 and the collection section 222 of the recovery duct 230. As a result, the vacuum level inside the recovery duct 230 increases. As the vacuum level inside the recovery duct 230 increases, the downward force acting on the lid 151 increases. When this downward force exceeds the magnetic attraction force between the first magnetic piece 153 and the second magnetic piece 154, the lid 151 is displaced from the closed position to the open position. At this time, the dust inside the dust storage section 140 is rapidly drawn out of the dust storage section 140 by the increased negative pressure inside the recovery duct 230. The dust collection source 221 then stops after a predetermined time has elapsed.

[0038] If the lid 151 is not held in the closed position by magnetic attraction, the lid 151 may gradually displace from the closed position to the open position as the dust collection source 221 starts operating. At this time, the dust in the dust storage section 140 is exposed to a gradually increasing dust collection force. Even when the dust collection force is not sufficiently high, some of the dust in the dust storage section 140 may flow out into the recovery duct 230. However, as a result of some of the dust in the dust storage section 140 flowing out into the recovery duct 230, it is expected that holes will form in the layer of dust accumulated on the lid 151. In this state, the air in the dust storage section 140 will more easily flow out into the recovery duct 230 through the holes formed in the dust layer, and will not act to push the dust in the dust storage section 140 away. For this reason, a large amount of dust may remain in the dust storage section 140 even after the dust collection source 221 has stopped.

[0039] On the other hand, when the dust in the dust storage section 140 is exposed to the dust collection force while the vacuum level in the recovery duct 230 is increased to a certain extent, the entire layer of dust on the lid 151 can be drawn into the flow path 231 of the recovery duct 230. As a result, it becomes less likely that a large amount of dust will remain in the dust storage section 140 after the dust collection source 221 is stopped.

[0040] If the speed at which the lid 151 moves from the closed position to the open position is low, the time spent with a narrow gap between the lid 151 and the lower end of the peripheral wall portion 141 will be longer. The dust-suction force acting on the dust in the dust collection portion 140 through this narrow gap will be small, and the effect of quickly sucking the dust in the dust collection portion 140 into the recovery duct 230 may not be obtained. For this reason, improvements may be made to the dust collection portion 140 to increase the speed at which the lid 151 moves from the closed position to the open position. For example, as shown in Figure 8, a biasing element 155 that biases the lid 151 to the open position may be attached to the connection between the lid 151 and the peripheral wall portion 141 of the dust collection portion 140. The biasing element 155 shown in Figure 8 is made of a torsion spring.

[0041] The lid 151 shown in Figure 5 is held in the closed position by the magnetic attraction force of the magnetic holding part 152. Instead of the magnetic holding part 152, an engaging part 156 provided at the lower end of the dust collection part 140 to engage with the edge of the lid 151 in the closed position may be used, as shown in Figure 9. The engaging part 156 shown in Figure 9 is a thin plate made of an elastically deformable material (for example, rubber). In this case, the lid 151 can be kept in the closed position until the vacuum level inside the recovery duct 230 reaches a certain level. When the vacuum level inside the recovery duct 230 increases to the point where the engaging part 156 bends downward, the engagement of the engaging part 156 with the lid 151 is released, and the lid 151 can rotate downward, opening the dust outlet 143.

[0042] Furthermore, components other than the magnetic holding portion 152 and the engaging portion 156 may be used to hold the lid 151 in the closed position. For example, various components such as hook-and-loop fasteners, adhesives, or suction cups can be used as substitutes for the magnetic holding portion 152 and the engaging portion 156.

[0043] <Second Embodiment> In the dust collection regulating section 150 shown in Figure 5, the lid 151 is held in the closed position by the magnetic attraction force of the magnetic holding section 152. In this case, it is conceivable that a strong impact on the vacuum cleaner 100 during cleaning may cause the lid 151 to rotate downward unintentionally, causing dust to fall from the dust collection section 140. To prevent such dust from falling, the dust collection section 140 can be improved as shown in Figures 10 and 11.

[0044] The lid 151 shown in Figures 10 and 11 has a substantially disc-shaped closing plate 157 that closes the dust discharge port 143 of the dust storage section 140, and a pivot shaft portion 158 provided at the front end of the closing plate 157. The pivot shaft portion 158 is connected to the peripheral wall portion 141 of the dust storage section 140 so as to allow the closing plate 157 to rotate downward around the pivot shaft portion 158 from the closed position shown in Figure 11. Furthermore, as shown in Figure 11, the lid 151 also has protrusions 161 and 162 that project forward from the front end portion of the closing plate 157 beyond the pivot shaft portion 158. These protrusions 161 and 162 are provided at intervals in the left-right direction.

[0045] To lock the lid 151 in the closed position, a locking mechanism 160 is configured above the protrusions 161 and 162, as shown in Figure 10. The locking mechanism 160 includes a locking piece 163 provided to contact the protrusions 161 and 162 of the lid 151 in the closed position, and a biasing part 164 that biases the locking piece 163 downward so that it is pressed against the protrusions 161 and 162. The biasing part 164 may be made of, for example, a coil spring.

[0046] In the state shown in Figure 10, when a downward external force is applied to the closing plate 157, the protrusions 161 and 162 attempt to rotate upward around the pivot shaft 158. However, this upward rotation is obstructed by the locking piece 163. As a result, the lid 151 is locked in the closed position. In the following description, the position of the locking piece 163 that contacts the protrusions 161 and 162 of the lid 151 in the closed position will be referred to as the "locked position".

[0047] When a strong upward external force acts on the locking piece 163, the locking piece 163 is displaced upward while elastically compressing and deforming the biasing portion 164. In this state, the locking piece 163 moves upward away from the protrusions 161 and 162, and the lid 151 can rotate downward to the open position, as shown in Figure 12. That is, when the locking piece 163 is pushed up to the position shown in Figure 12, the lock on the lid 151 is released. In the following description, the position of the locking piece 163 shown in Figure 12 will be referred to as the "release position".

[0048] As shown in Figure 12, the locking piece 163 has a T-shape in a front view. The lower end portion of the locking piece 163 can enter the space between the protrusions 161 and 162 as the locking piece 163 is displaced from the unlocked position to the locked position.

[0049] As shown in Figure 13, a lock release section 165 is provided inside the recovery duct 230 to displace the lock piece 163 from the locked position to the unlocked position in accordance with the attachment of the dust storage section 140 to the recovery device 200. The lock release section 165 protrudes upward from the inner wall surface of the recovery duct 230, below the lock piece 163 of the dust storage section 140 attached to the upper end portion of the recovery duct 230.

[0050] When the dust collection section 140 is pushed downward while its lower end is fitted into the upper end of the recovery duct 230, the locking piece 163 is pushed up by the unlocking section 165 and displaced to the unlocked position. In this state, the lid 151 is held in the closed position by the magnetic attraction force of the magnetic holding section 152.

[0051] Subsequently, when the dust collection source 221 is activated, the vacuum level inside the recovery duct 230 increases due to the dust collection force of the dust collection source 221. When the vacuum level reaches a certain level, the downward force acting on the lid 151 exceeds the magnetic attraction force of the magnetic holding part 152, and the lid 151 can rotate downward from the closed position to the open position. At this time, as described above, the locking piece 163 is pushed up by the unlocking part 165, so the downward rotation of the lid 151 is not hindered by the locking piece 163.

[0052] After dust is collected from the dust storage unit 140 to the collection device 200, the vacuum cleaner 100 is separated from the collection device 200 when the user begins cleaning. At this time, when the dust storage unit 140 is pulled out of the collection duct 230, the locking piece 163 is pushed down by the biasing part 164 and comes into contact with the protrusions 161 and 162 of the lid 151. Subsequently, when these protrusions 161 and 162 are pushed down by the locking piece 163, the closing plate 157 of the lid 151 rotates upward around the pivot shaft 158, closing the dust discharge port 143 of the dust storage unit 140. In other words, the lid 151 is returned from the open position to the closed position by the locking piece 163.

[0053] <Third Embodiment> In the cleaning tool set 101 of the first embodiment, after dust is collected from the vacuum cleaner 100 to the collection device 200, the lid 151 is in the open position. Therefore, when starting cleaning work, the user must manually return the lid 151 to the closed position. To eliminate this task, as shown in Figure 14, the connection between the suction nozzle 130 and the suction tube 120 can be improved so that sufficient suction force acts on the lid 151 to return it to the closed position.

[0054] In the front portion of the suction nozzle 130 of the vacuum cleaner 100 shown in Figure 14, a suction space 166 is formed through the suction port 131 by the suction force of the suction source 111, into which dust flows. A rotating brush 167 for scraping up dust from the floor surface is positioned within the suction space 166.

[0055] A nozzle bottom wall 168, which forms the lower surface of the suction nozzle 130, is located at the rear of the suction space 166, and the suction pipe 120 is supported by the nozzle bottom wall 168. In Figure 14, the suction pipe 120 is in an upright position relative to the suction nozzle 130. The connection between the suction pipe 120 and the suction nozzle 130 is configured to allow the suction pipe 120 to tilt backward from its upright position to a backward-tilted position.

[0056] As shown in Figure 14, the flow path 123 of the suction tube 120 opens at the lower end of the suction tube 120. When the suction tube 120 is in an upright position, this opening of the flow path 123 is blocked by the nozzle bottom wall 168 of the suction nozzle 130. On the other hand, when the suction tube 120 is tilted backward, the flow path 123 opens forward.

[0057] A connecting passage 169 is formed inside the suction nozzle 130, extending rearward from the suction space 166. When the suction pipe 120 is tilted backward, the flow path 123 of the suction pipe 120 communicates with the suction space 166 through the connecting passage 169. On the other hand, when the suction pipe 120 is in an upright position, the flow path 123 of the suction pipe 120 does not communicate with the suction space 166.

[0058] When the connection structure between the suction nozzle 130 and the suction tube 120 shown in Figure 14 is applied to the vacuum cleaner 100 in Figure 1, if the suction tube 120 is in an upright position, the suction force of the suction source 111 does not act on the suction space 166 of the suction nozzle 130, but acts strongly within the dust collection section 140. At this time, as shown in Figure 3, if the lid 151 is in the open position, it is pulled upward by the strong upward suction force acting within the dust collection section 140. Then, when the distance between the first magnetic piece 153 and the second magnetic piece 154 becomes somewhat shorter, the magnetic attraction force acting between the first magnetic piece 153 and the second magnetic piece 154 also acts, and the lid 151 can return to the closed position.

[0059] Therefore, after separating the vacuum cleaner 100 from the collection device 200, the user can return the lid 151 to the closed position by operating the suction source 111 with the suction pipe 120 in an upright position. After the lid 151 is returned, the user can move the suction nozzle 130 on the floor surface by tilting the suction pipe 120 backward, thereby sucking up dust from the floor surface into the dust collection section 140.

[0060] <Fourth Embodiment> The vacuum cleaner 100 of the first embodiment is configured to generate a swirling flow within the dust collection section 140. Alternatively, the vacuum cleaner 100 may be configured to collect dust without generating a swirling flow within the dust collection section 140, as shown in Figure 15.

[0061] The vacuum cleaner 100 shown in Figure 15 has a roughly cylindrical housing 110 that is long in the vertical direction, and a grip portion 113 that extends upward from the upper end of the housing 110. The upper part of the housing 110 houses a suction source 111 and a storage battery 114. Below the suction source 111, a filter 112 divides the internal space of the housing 110 vertically. The filter 112 demarcates the upper end of the dust storage space 148 of the dust storage section 140.

[0062] A suction pipe 120 is housed in the lower part of the housing 110, and a check valve 170 is attached to the upper end of the suction pipe 120. A suction nozzle 130 is connected to the lower end of the suction pipe 120. The connection structure between the suction pipe 120 and the suction nozzle 130 is the same as that shown in Figure 14. The check valve 170 is configured to bend upward around its rear end when it receives an upward suction force from the suction source 111.

[0063] The check valve 170 demarcates the lower end of the dust storage space 148 of the dust storage section 140. That is, the dust storage section 140 is composed of the check valve 170, the filter 112, and the portion of the housing 110 between the check valve 170 and the filter 112. When the check valve 170 is bent upward by the suction force of the suction source 111, the dust storage space 148 of the dust storage section 140 and the flow path 123 of the suction pipe 120 come into communication with each other.

[0064] As shown in Figure 16, a dust collection port 143 is provided in the portion of the housing 110 that forms the dust collection section 140, with the port opening forward. A cover 151 for opening and closing the dust collection port 143 is attached to the housing 110 via a pivot shaft 158. The cover 151 shown in Figure 16 is in the open position, which opens the dust collection port 143. The cover 151 can rotate upward around the pivot shaft 158 ​​from the open position to reach the closed position shown in Figure 17.

[0065] A second magnetic piece 154 is attached to the upper side of the dust outlet 143. In addition, a first magnetic piece 153 is attached to the lid 151 so as to face the second magnetic piece 154 in the front-to-back direction when the lid 151 is in the closed position.

[0066] As shown in Figure 15, the collection device 200 comprises a support plate 210 on which the vacuum cleaner 100 is placed, and a housing 220 provided on the support plate 210. Inside the housing 220 are a dust collection source 221 and a collection unit 222. The collection unit 222 is fixed above the dust collection source 221, and a filter 223 is positioned between the collection unit 222 and the dust collection source 221. The collection duct 230 extends from the collection unit 222 and opens in the rear wall of the housing 220. The opening of this collection duct 230 is positioned opposite the lid 151 of the vacuum cleaner 100, which is in an upright position on the support plate 210. The collection duct 230 forms a flow path 231 through which dust and air flow upward.

[0067] During cleaning, the suction force of the suction source 111 causes the check valve 170 to bend upward, and the dust storage space 148 of the dust storage section 140 communicates with the suction space 166 of the suction nozzle 130 through the flow path 123 of the suction pipe 120 and the communication passage 169 of the suction nozzle 130. In this state, the suction force of the suction source 111 acts on the floor surface through the suction port 131. As a result, dust on the floor surface is sucked up into the suction space 166 through the suction port 131. This dust then flows into the suction pipe 120 through the communication passage 169 of the suction nozzle 130. The dust that has passed through the suction pipe 120 is captured by the filter 112. When the suction source 111 stops, this dust falls from the filter 112 and is stored in the dust storage section 140.

[0068] To collect dust from the dust collection section 140, the user can connect a vacuum cleaner 100 to the collection device 200, as shown in Figure 15. In this state, for a while after the dust collection source 221 is activated, the lid 151 is held in the closed position by the magnetic attraction between the first magnetic piece 153 and the second magnetic piece 154. During this time, the vacuum level in the collection duct 230 increases. As a result, the force acting to tilt the lid 151 forward gradually increases. When this force exceeds the magnetic attraction between the first magnetic piece 153 and the second magnetic piece 154, the lid 151 tilts forward, and the dust outlet 143 is opened. As a result, the dust in the dust collection section 140 is exposed to the increased negative pressure in the collection duct 230 and can be sucked out of the dust collection section 140 in one go.

[0069] <Fifth Embodiment> In the cleaning tool set 101 of the fourth embodiment, the dust outlet 143 does not open downwards, so even if the lid 151 moves to the open position, the dust in the dust storage section 140 does not fall by gravity. Therefore, it is unlikely that a hole will be created in the dust layer in the dust storage section 140 due to some of the dust in the dust storage section 140 falling by gravity as the lid 151 moves to the open position. Accordingly, the cleaning tool set 101 may be configured such that the lid 151 is displaced to the open position when the vacuum cleaner 100 is connected to the recovery device 200. In this case, a dust collection restricting unit 150, which restricts the dust collection force from acting on the dust in the dust storage section 140 of the vacuum cleaner 100 for a predetermined period of time from the start of operation of the dust collection source 221 of the recovery device 200, may be provided in the recovery duct 230 of the recovery device 200, as shown in Figure 18.

[0070] The dust collection regulating unit 150 shown in Figure 18 has a partition 232 provided in the flow path 231 of the recovery duct 230, and a magnetic holding unit 233 that holds the partition 232 in a closed position that blocks the flow path 231 of the recovery duct 230. The partition 232 is attached to the recovery duct 230 so as to be rotatable upward from the closed position shown in Figure 18. In the following description, the part of the partition 232 in the closed position in the flow path 231 of the recovery duct 230 that is on the dust collection source 221 side will be referred to as the "downstream flow path section 236", and the part that is on the dust storage section 140 side connected to the recovery duct 230 will be referred to as the "upstream flow path section 237".

[0071] The magnetic holding portion 233 includes a first magnetic piece 234 fixed to the tip of the partition portion 232, and a second magnetic piece 235 fixed to the outer surface of the recovery duct 230 so as to face the first magnetic piece 234 when the partition portion 232 is in the closed position.

[0072] When the dust collection restricting unit 150 is provided on the collection device 200, as shown in Figure 19, the cleaning tool set 101 may be configured such that the lid 151 of the vacuum cleaner 100 is displaced to the open position in response to the connection of the vacuum cleaner 100 to the collection device 200. That is, the pivot shaft portion 158 of the lid 151 is located above the lower end portion of the lid 151 when it is in the closed position. A biasing component 159 is attached to this pivot shaft portion 158 to bias the lid 151 toward the closed position.

[0073] The retrieval device 200 has a projection 224 that protrudes rearward from the housing 220. The projection 224 is positioned at a height that abuts against the cover 151 below the pivot shaft 158 ​​when the vacuum cleaner 100 is connected to the retrieval device 200.

[0074] When the user connects the housing 110 of the vacuum cleaner 100 to the housing 220 of the collection device 200, as shown in Figure 20, the protruding portion 224 of the collection device 200 pushes the lower end portion of the lid 151 of the vacuum cleaner 100. As a result, the lid 151 rotates around the pivot shaft portion 158 and reaches an open position that opens the dust outlet 143. Consequently, the dust storage space 148 of the vacuum cleaner 100 communicates with the flow path 231 of the collection duct 230 through the dust outlet 143.

[0075] In this state, for a while after the recovery device 200 is activated, the partition 232 is held in the closed position by the magnetic attraction force of the magnetic holding part 233, as shown in Figure 18. During this time, the vacuum level in the downstream flow path section 236 is increased by the dust collection force of the dust collection source 221 of the recovery device 200. As the vacuum level in the downstream flow path section 236 increases, the upward force acting on the partition 232 increases. When this upward force exceeds the magnetic attraction force of the magnetic holding part 233, the partition 232 rotates upward and reaches an open position where the downstream flow path section 236 and the upstream flow path section 237 communicate with each other.

[0076] When the partition 232 rotates to the open position, the dust inside the dust storage section 140 is exposed to the negative pressure that has been increased while the partition 232 is held in the closed position by the magnetic holding section 233, and is sucked out into the recovery duct 230 in one go. As a result, less dust may remain inside the dust storage section 140 while being caught around the dust discharge port 143.

[0077] In the cleaning tool set 101 shown in Figure 18, the partition 232 is held in the closed position by a magnetic holder 233. Instead of the magnetic holder 233, an engaging portion 238 may be used, as shown in Figure 22, which protrudes from the recovery duct 230 to engage with the tip of the partition 232 from above. The engaging portion 238 is a thin plate made of an elastically deformable material (for example, rubber).

[0078] The engaging portion 238 maintains its engagement with the partition portion 232 for a period of time after the dust collection source 221 of the recovery device 200 is activated, keeping the partition portion 232 in the closed position. During this time, the vacuum level in the downstream flow path 236 is increased by the dust collection force of the dust collection source 221. As the vacuum level in the downstream flow path 236 increases, the upward force acting on the partition portion 232 increases. As this upward force increases, the engaging portion 238 bends upward, releasing its engagement with the partition portion 232. After the engagement with the engaging portion 238 is released, the partition portion 232 rotates upward and reaches an open position where the downstream flow path 236 and the upstream flow path 237 communicate with each other. As a result, the dust in the dust storage section 140 is exposed to the negative pressure that was increased while the partition portion 232 was held in the closed position by the engaging portion 238, and is sucked out into the recovery duct 230 in one go. As a result, less dust may remain inside the dust storage section 140 while being caught around the dust discharge port 143.

[0079] To control the timing of the partition 232's displacement from the closed position to the open position with high precision, a negative pressure detection unit 242 for detecting the vacuum level in the downstream flow path 236 may be attached to the recovery duct 230, as shown in Figure 23. In this case, a partition drive unit 243 may be connected to the partition 232 to drive the partition 232 so that it rotates from the closed position to the open position, provided that the vacuum level detected by the negative pressure detection unit 242 reaches a predetermined value. For example, a stepping motor can be used as the partition drive unit 243.

[0080] The partition drive unit 243 remains stationary for a while after the dust collection source 221 of the recovery device 200 is activated, maintaining the partition unit 232 in the closed position. During this time, the vacuum level in the downstream flow path 236 is increased by the dust collection force of the dust collection source 221. When the vacuum level detected by the negative pressure detection unit 242 reaches a predetermined value, the partition drive unit 243 rotates the partition unit 232 from the closed position to the open position. As a result, the dust in the dust storage unit 140 is exposed to the negative pressure increased while the partition unit 232 is held in the closed position by the engaging unit 238, and is sucked out into the recovery duct 230 in one go. As a result, less dust may remain in the dust storage unit 140 while stuck around the dust discharge port 143.

[0081] The partition drive unit 243 in Figure 23 moves the partition unit 232 from the closed position to the open position, provided that the vacuum level detected by the negative pressure detection unit 242 reaches a predetermined value. Alternatively, the partition drive unit 243 may be configured to displace the partition unit 232 from the closed position to the open position, provided that a predetermined period of time has elapsed since the activation of the dust collection source 221. In this case, the negative pressure detection unit 242 may be omitted.

[0082] In the first to fifth embodiments, the vacuum cleaner 100 is of the stick type. Alternatively, the dust collection unit 140 may be mounted on a self-propelled vacuum cleaner (a so-called robotic vacuum cleaner), a canister-type vacuum cleaner, or a handheld vacuum cleaner.

[0083] (Effects, etc.) The cleaning tool set 101 according to the above embodiment has the following features and provides the following effects.

[0084] A cleaning tool set according to one aspect of the above-described embodiment includes a vacuum cleaner having a dust storage section that forms a dust storage space for storing dust sucked up during cleaning work; a recovery duct that is connected to the dust storage section and forms a flow path for dust that flows out from the dust storage section; a dust collection source that generates a dust collection force for sucking out dust from the dust storage section through the recovery duct; and a dust collection regulating section that increases the vacuum level in the recovery duct by restricting the dust collection force of the dust collection source from acting on the dust storage space of the dust storage section connected to the recovery duct, and also allows the dust collection force of the dust collection source to act on the dust storage space of the dust storage section when predetermined conditions are met.

[0085] In the configuration described above, the user connects the dust collection section of the vacuum cleaner to the recovery duct and activates the dust collection source of the recovery device in order to empty the dust collection section. From the start of operation of the dust collection source until predetermined conditions are met, the dust collection regulating unit restricts the dust collection force of the dust collection source from acting on the dust collection space of the dust collection section. During this time, the air in the recovery duct is drawn in by the dust collection source, increasing the vacuum level in the recovery duct. After the predetermined conditions are met, the dust collection force of the dust collection source acts on the dust collection space of the dust collection section. As a result, the dust in the dust collection space can be sucked out all at once by the increased negative pressure. In other words, by increasing the pressure difference between the dust collection section and the recovery duct, the dust flows out of the dust collection section with force, so that dust getting stuck in the dust collection section can be suppressed. Therefore, the amount of dust remaining in the dust collection section while stuck can be reduced.

[0086] In the above configuration, the dust storage section may have a dust discharge port that allows dust to flow out. The dust collection restricting section may have a lid provided in the dust storage section that is displaceable between an open position that opens the dust discharge port and a closed position that closes the dust discharge port, and a magnetic holding section that generates a magnetic attraction force to hold the lid in the closed position. The predetermined condition may be that the force acting on the lid due to the negative pressure in the flow path of the recovery duct to which the dust storage section is connected exceeds the attraction force of the magnetic holding section. When the predetermined condition is not met, the lid is held in the closed position by the magnetic attraction force of the magnetic holding section, restricting the dust collection force of the dust collection source from acting on the dust storage space of the dust storage section, and when the predetermined condition is met, it may displace from the closed position to the open position, thereby allowing the dust collection force of the dust collection source to act on the dust storage space of the dust storage section.

[0087] In the configuration described above, for a period of time after the dust collection source is activated, the magnetic holding force can resist the negative pressure in the flow path of the recovery duct and hold the lid in the closed position that closes the dust outlet. While the lid is held in the closed position, the negative pressure in the flow path of the recovery duct gradually increases. When the force acting on the lid due to this negative pressure exceeds the magnetic holding force, the lid is displaced from the closed position to the open position. As a result, the dust in the dust storage space of the dust collection section is exposed to the increased negative pressure in the flow path of the recovery duct and can be discharged all at once through the dust outlet.

[0088] In the above configuration, the cleaning tool set may further include a locking mechanism provided in the dust collection section to lock the lid in the closed position. The locking mechanism may have a locking piece that is displaceable between a locking position that contacts the lid to restrict the lid from displacing from the closed position to the open position and a release position that allows the lid to displace from the closed position to the open position, and a biasing part that biases the locking piece to the locking position. The locking piece may be configured to return the lid to the closed position by being displaced from the release position to the locking position by the biasing part while contacting the lid in the open position.

[0089] In the above configuration, the user can prevent the lid from unintentionally displacing from the closed position to the open position by locking the lid in the closed position with the locking mechanism. Furthermore, the user can empty the dust collection section without using a collection device as follows: The user can displace the locking piece from the locked position to the released position against the biasing part, while simultaneously displacing the lid to the open position against the magnetic holding force. As a result, the dust discharge port is opened, and the user can dispose of the dust from the dust collection section.

[0090] Subsequently, when the user releases their fingers from the locking piece and the lid, the locking piece is displaced from the released position to the locked position by the biasing mechanism. At this time, the locking piece is in contact with the lid, and the lid can return to the closed position as the locking piece displaces from the released position to the locked position.

[0091] In the above configuration, the cleaning tool set may include a lock release unit provided in the recovery duct so as to press the lock piece toward the release position when the dust collection unit is connected to the recovery duct.

[0092] In the configuration described above, when the user connects the dust collection unit to the recovery duct, the lock release unit provided on the recovery duct presses the lock piece to the release position, releasing the lock on the lid. In this state, the lid can be held in the closed position by the magnetic holding force. Subsequently, when the dust collection source is activated and the force acting on the lid due to the negative pressure in the flow path of the recovery duct exceeds the magnetic holding force, the lid can be displaced from the closed position to the open position. As a result, the dust in the dust collection space of the dust collection unit is exposed to the increased negative pressure in the flow path and can be discharged all at once through the dust discharge port.

[0093] Subsequently, when the user removes the dust collection section from the collection duct, the pressure on the locking piece by the unlocking section can be released. As a result, the locking piece returns to the locked position due to the biasing section, and the lid can return to the closed position as the locking piece is displaced.

[0094] In the above configuration, the vacuum cleaner may include a suction source that generates a suction force to suck up dust, a suction nozzle that forms a suction space into which dust from the floor surface flows due to the suction force of the suction source, and a suction pipe connected to the suction nozzle that forms a flow path toward the dust collection section due to the suction force of the suction source, and is capable of changing its position between an upright position relative to the suction nozzle and a backward-tilted position relative to the suction nozzle. The suction nozzle may be configured to allow the suction space and the flow path of the suction pipe to communicate with each other when the suction pipe is in the backward-tilted position, while eliminating the communication between the suction space and the flow path of the suction pipe when the suction pipe is in the upright position. The suction source may be configured to generate a suction force large enough to displace a lid from the open position to the closed position when the suction pipe is in the upright position.

[0095] In the configuration described above, when the user activates the dust collection source with the dust collection unit attached to the collection device, the suction force of the dust collection source displaces the lid to the open position, and the dust in the dust collection unit is collected by the collection device. Once the collection of dust from the dust collection unit to the collection device is complete, the user stops the dust collection source. After that, the user separates the vacuum cleaner from the collection device and positions the suction pipe on the floor in an upright position relative to the suction nozzle. In this state, the communication between the suction space and the flow path of the suction pipe is eliminated, so when the suction source is activated, the suction force of the suction source has almost no effect on the suction space. As a result, the suction force acting on the lid becomes stronger. This allows the lid to be displaced from the open position to the closed position.

[0096] In the above configuration, the vacuum cleaner may have a biasing element that biases the lid to the open position.

[0097] In the configuration described above, once the lid begins to displace toward the open position, this displacement is accelerated by the biasing element. As a result, the dust outlet opens all at once, promoting the outflow of dust from the dust storage space in the dust storage section.

[0098] In the above configuration, the dust storage section may have a dust outlet that allows dust to flow out. The dust collection restricting section may have a lid provided on the dust storage section that is displaceable between an open position that opens the dust outlet and a closed position that closes the dust outlet, and an elastically deformable engaging portion that engages with the lid. The predetermined condition may be that the engaging portion is elastically deformed and released from engagement with the lid as the negative pressure in the flow path of the recovery duct to which the dust storage section is connected increases. When the predetermined condition is not met, the lid is held in the closed position by engagement with the engaging portion, restricting the dust collection force of the dust collection source from acting on the dust storage space of the dust storage section, and when the predetermined condition is met, it may be displaced from the closed position to the open position, thereby allowing the dust collection force of the dust collection source to act on the dust storage space of the dust storage section.

[0099] In the configuration described above, the engagement between the engaging part and the lid can be maintained for a period of time after the dust collection source is activated. However, as the negative pressure in the flow path of the recovery duct increases, the engaging part can elastically deform, and the engagement with the lid can be released. As a result, the lid is displaced from the closed position to the open position. At this time, the dust in the dust storage space of the dust storage part is exposed to the increased negative pressure in the flow path of the recovery duct and can be discharged all at once through the dust outlet.

[0100] In the above configuration, the upper end of the recovery duct may be formed to allow connection of a dust collection section in a position where the dust discharge port opens downward when the lid is in the open position. The recovery duct may be configured such that the flow path extends downward from the upper end of the recovery duct.

[0101] In the above configuration, when the dust storage unit is attached to the upper end of the recovery duct, the dust discharge port opens downwards when the lid is in the open position. Therefore, dust in the dust storage space can fall using not only the suction force of the dust collection source but also gravity. Since the recovery duct extends downwards from the upper end of the recovery duct, the dust that falls from the dust storage space can fall down the flow path of the recovery duct due to gravity. Thus, dust in the dust storage unit can be transferred to the recovery device using not only the suction force of the dust collection source but also gravity.

[0102] In the above configuration, the dust storage section may have a dust discharge port that allows dust to flow out. The recovery duct may be formed such that a flow path communicates with the dust storage space of the dust storage section connected to the recovery duct through the dust discharge port. The dust collection regulating section may have a partition section provided in the recovery duct that is displaceable between a closed position that partitions the flow path of the recovery duct into a downstream flow path section on the dust collection source side and an upstream flow path section on the dust storage section side connected to the recovery duct, and an open position that connects the downstream flow path section and the upstream flow path section, and a magnetic holding section that generates a magnetic attraction force to hold the partition section in the closed position. The predetermined condition may be that the force acting on the partition section due to the negative pressure in the downstream flow path section exceeds the attraction force of the magnetic holding section. The partition may be held in a closed position by the magnetic attraction force of the magnetic holding part when the predetermined conditions are not met, thereby restricting the dust-collecting force of the dust collection source from acting on the dust storage space of the dust storage part. When the predetermined conditions are met, the partition may be displaced from the closed position to the open position, thereby allowing the dust-collecting force of the dust collection source to act on the dust storage space of the dust storage part.

[0103] In the above configuration, the user can connect the dust collection unit to the recovery duct, thereby connecting the dust storage space of the dust collection unit and the flow path of the recovery duct through the dust discharge port. In this case, even if the dust collection source is activated, if the partition is held in the closed position by the magnetic holder, the dust collection force of the dust collection source will not act on the upstream flow path of the recovery duct or the dust storage space of the dust collection unit, and the vacuum level of the downstream flow path will increase. When the force acting on the partition due to the negative pressure in the downstream flow path exceeds the attractive force of the magnetic holder, the partition is allowed to displace from the closed position to the open position. In this state, when the partition displaces from the closed position to the open position, the dust in the dust storage space of the dust collection unit is exposed to the increased negative pressure in the downstream flow path and can be discharged all at once through the dust discharge port.

[0104] In the above configuration, the dust storage section may have a dust discharge port that allows dust to flow out. The recovery duct may be formed such that a flow path communicates with the dust storage space of the dust storage section connected to the recovery duct through the dust discharge port. The dust collection regulating section may have a partition portion provided in the recovery duct that is displaceable between a closed position that partitions the flow path of the recovery duct into a downstream flow path portion on the dust collection source side and an upstream flow path portion on the dust storage section side connected to the recovery duct, and an open position that connects the downstream flow path portion and the upstream flow path portion, and an elastically deformable engaging portion that engages with the partition portion. The predetermined condition may be that as the negative pressure in the downstream flow path portion to which the dust storage section is connected increases, the engaging portion elastically deforms and releases its engagement with the partition portion. The partition may, when certain conditions are not met, be held in a closed position by engagement with the engaging portion, thereby restricting the dust-collecting force of the dust collection source from acting on the dust storage space of the dust storage section. When certain conditions are met, it may be displaced from the closed position to the open position, thereby allowing the dust-collecting force of the dust collection source to act on the dust storage space of the dust storage section.

[0105] In the configuration described above, the engagement between the engaging portion and the partition portion can be maintained for a period of time after the dust collection source is activated. However, as the negative pressure in the downstream flow path increases, the engaging portion can elastically deform and disengage from the partition portion. As a result, the partition portion is displaced from the closed position to the open position. At this time, the dust in the dust storage space of the dust storage portion is exposed to the increased negative pressure in the downstream flow path and can be discharged all at once through the dust discharge port.

[0106] In the above configuration, the dust storage section may have a dust discharge port that allows dust to flow out. The recovery duct may be formed such that a flow path communicates with the dust storage space of the dust storage section connected to the recovery duct through the dust discharge port. The dust collection regulating section may have a partition section provided in the recovery duct that is displaceable between a closed position that partitions the flow path of the recovery duct into a downstream flow path section on the dust collection source side and an upstream flow path section on the dust storage section side connected to the recovery duct, and an open position that connects the downstream flow path section and the upstream flow path section, a negative pressure detection section that detects the vacuum level of the downstream flow path section, and a partition drive section that displaces the partition section from the closed position to the open position. The predetermined condition may be that the vacuum level detected by the negative pressure detection section has reached a predetermined value. If the predetermined condition is not met, the partition drive section may restrict the dust collection force of the dust collection source from acting on the dust storage space of the dust storage section by holding the partition section in the closed position. Depending on whether the predetermined conditions are met, the partition may be displaced from the closed position to the open position, allowing the dust-collecting force of the dust collection source to act on the dust storage space of the dust collection section.

[0107] In the configuration described above, the user can connect the dust collection unit to the recovery duct, thereby connecting the dust collection space of the dust collection unit and the flow path of the recovery duct to each other through the dust discharge port. In this state, for a while after the dust collection source is activated, the vacuum level in the downstream flow path has not reached a predetermined value, and the partition unit is in the closed position, separating the downstream flow path from the upstream flow path. Subsequently, when the vacuum level in the downstream flow path reaches a predetermined value, the partition drive unit displaces the partition unit from the closed position to the open position. As a result, the dust in the dust collection space of the dust collection unit is exposed to the increased negative pressure in the downstream flow path and can be discharged all at once through the dust discharge port.

[0108] In the above configuration, the dust storage section may have a dust discharge port that allows dust to flow out. The recovery duct may be formed such that a flow path communicates with the dust storage space of the dust storage section connected to the recovery duct through the dust discharge port. The dust collection regulating section may have a partition section provided in the recovery duct that is displaceable between a closed position that partitions the flow path of the recovery duct into a downstream flow path section on the dust collection source side and an upstream flow path section on the dust storage section side connected to the recovery duct, and an open position that connects the downstream flow path section and the upstream flow path section, and a partition drive section that displaces the partition section from the closed position to the open position. The predetermined condition may be that a predetermined period of time has elapsed since the start of the dust collection source. If the predetermined condition is not met, the partition drive section may restrict the dust collection force of the dust collection source from acting on the dust storage space of the dust storage section by holding the partition section in the closed position. Depending on whether the predetermined condition is met, the partition section may be displaced from the closed position to the open position to allow the dust collection force of the dust collection source to act on the dust storage space of the dust storage section.

[0109] In the above configuration, the user can connect the dust collection unit to the recovery duct, thereby connecting the dust collection space of the dust collection unit and the flow path of the recovery duct to each other through the dust discharge port. In this state, until a predetermined period has elapsed since the dust collection source was started, the partition unit is in a closed position, separating the downstream flow path from the upstream flow path. During this time, the vacuum level in the downstream flow path gradually increases, and once the predetermined period has elapsed since the dust collection source was started, the partition drive unit displaces the partition unit from the closed position to the open position. As a result, the dust in the dust collection space of the dust collection unit is exposed to the increased negative pressure in the downstream flow path and can be discharged all at once through the dust discharge port. [Industrial applicability]

[0110] The cleaning tool set of the above embodiment is suitably used in equipment used for cleaning work. [Explanation of symbols]

[0111] 100... Vacuum cleaner 101··········Cleaning tool set 111...Suction source 120...Suction tube 123··········channel 130··········Suction nozzle 140...Dust storage section 143... Dust exhaust port 148...Dust storage space 150...Dust suction control section 151··········Lid 152··········Magnetic holding part 155·········· biasing element 156··········Engaging part 160··········Locking mechanism 163··········Lock piece 164··········Enhancing part 165··········Lock release section 166··········Intake space 200·········Recovery device 221····················· Dust absorption source 230··········Collection duct 231··········channel 232··········Partition 233··········Magnetic holding part 236··········Downstream channel 237··········Upstream channel 238··········Engaging part 242··········Negative pressure detection unit 243··········Partition drive unit

Claims

1. A vacuum cleaner having a dust storage section that forms a dust storage space for storing dust and debris sucked up during cleaning work, A recovery device comprising: a recovery duct formed to connect to the dust storage section and forming a flow path for dust flowing out of the dust storage section; and a dust collection source that generates a dust collection force for sucking out dust from the dust storage section through the recovery duct; A cleaning tool set comprising: a dust collection restricting unit that restricts the dust collection force of the dust collection source from acting on the dust storage space of the dust storage unit connected to the recovery duct, thereby increasing the vacuum level inside the recovery duct, and allowing the dust collection force of the dust collection source to act on the dust storage space of the dust storage unit when predetermined conditions are met.

2. The dust storage section is provided with a dust discharge port that allows dust to flow out. The aforementioned dust collection regulating unit is A lid is provided in the dust storage section so as to be displaceable between an open position where the dust outlet is open and a closed position where the dust outlet is closed. It has a magnetic holding part that generates a magnetic attraction force for holding the lid in the closed position, The predetermined condition is that the force acting on the lid due to the negative pressure in the flow path of the recovery duct to which the dust collection section is connected exceeds the adsorption force of the magnetic holding section. The aforementioned cover is If the predetermined conditions are not met, the magnetic holding force of the magnetic holding part holds it in the closed position, thereby restricting the dust collection force of the dust collection source from acting on the dust storage space of the dust storage part. The cleaning tool set according to claim 1, wherein, in response to the fulfillment of the predetermined conditions, the set is displaced from the closed position to the open position, thereby allowing the dust-collecting force of the dust collection source to act upon the dust storage space of the dust storage section.

3. The dust collection section is further provided with a locking mechanism to lock the lid in the closed position, The locking mechanism is A locking piece is provided that is displaceable between a locked position, which contacts the lid to restrict the lid from displacing from the closed position to the open position, and a released position, which allows the lid to displace from the closed position to the open position. It has a biasing part that biases the locking piece to the locked position, The cleaning tool set according to claim 2, wherein the locking piece is configured to return the lid to the closed position by being displaced by the biasing portion from the released position to the locked position while in contact with the lid in the open position.

4. The cleaning tool set according to claim 3, further comprising: a lock release unit provided in the recovery duct so as to press the lock piece toward the release position when the dust collection unit is connected to the recovery duct.

5. The vacuum cleaner mentioned above, A suction source that generates suction force to suck up dust, A suction nozzle that forms a suction space into which dust from the floor surface flows in due to the suction force of the aforementioned suction source, The suction force of the suction source forms a flow path through which dust flows toward the dust collection section, and the suction pipe connected to the suction nozzle is capable of changing between an upright position relative to the suction nozzle and a backward-tilted position relative to the suction nozzle. The suction nozzle is configured to allow the suction space and the flow path of the suction tube to communicate with each other when the suction tube is in the backward-tilted position, while eliminating the communication between the suction space and the flow path of the suction tube when the suction tube is in the upright position. The cleaning tool set according to claim 2, wherein the suction source is configured to generate a suction force of a magnitude that displaces the lid, which is in the open position, to the closed position when the suction tube is in the upright position.

6. The cleaning tool set according to claim 2, wherein the vacuum cleaner has a biasing element that biases the lid to the open position.

7. The dust storage section is provided with a dust discharge port that allows dust to flow out. The aforementioned dust collection regulating unit is A lid is provided in the dust storage section so as to be displaceable between an open position where the dust outlet is open and a closed position where the dust outlet is closed. It has an elastically deformable engaging portion that engages with the lid, The predetermined condition is that the engaging portion is elastically deformed and disengaged from the lid as the negative pressure in the flow path of the recovery duct to which the dust collection portion is connected increases. The aforementioned cover is If the predetermined conditions are not met, the engagement with the engaging portion holds it in the closed position, restricting the dust collection force of the dust collection source from acting on the dust storage space of the dust storage portion. The cleaning tool set according to claim 1, wherein, in response to the fulfillment of the predetermined conditions, the set is displaced from the closed position to the open position, thereby allowing the dust-collecting force of the dust collection source to act upon the dust storage space of the dust storage section.

8. The upper end of the recovery duct is formed so that the dust collection section can be connected in a position where the dust outlet opens downward when the lid is in the open position. The cleaning tool set according to any one of claims 2 to 7, wherein the recovery duct is configured such that the flow path extends downward from the upper end of the recovery duct.

9. The dust storage section is provided with a dust discharge port that allows dust to flow out. The recovery duct is formed such that the flow path communicates with the dust storage space of the dust storage section connected to the recovery duct through the dust discharge port. The aforementioned dust collection regulating unit is A partition is provided in the recovery duct so as to be displaceable between a closed position that divides the flow path of the recovery duct into a downstream flow path on the dust collection source side and an upstream flow path on the dust storage unit side connected to the recovery duct, and an open position that connects the downstream flow path and the upstream flow path. It has a magnetic holding part that generates a magnetic attraction force to hold the partition part in the closed position, The predetermined condition is that the force acting on the partition portion due to the negative pressure in the downstream flow path exceeds the adsorption force of the magnetic retaining portion. The aforementioned partition is, If the predetermined conditions are not met, the magnetic holding force of the magnetic holding part holds it in the closed position, thereby restricting the dust collection force of the dust collection source from acting on the dust storage space of the dust storage part. The cleaning tool set according to claim 1, wherein, in response to the fulfillment of the predetermined conditions, the set is displaced from the closed position to the open position, thereby allowing the dust-collecting force of the dust collection source to act upon the dust storage space of the dust storage section.

10. The dust storage section is provided with a dust discharge port that allows dust to flow out. The recovery duct is formed such that the flow path communicates with the dust storage space of the dust storage section connected to the recovery duct through the dust discharge port. The aforementioned dust collection regulating unit is A partition is provided in the recovery duct so as to be displaceable between a closed position that divides the flow path of the recovery duct into a downstream flow path on the dust collection source side and an upstream flow path on the dust storage unit side connected to the recovery duct, and an open position that connects the downstream flow path and the upstream flow path. It has an elastically deformable engaging portion that engages with the partition portion, The predetermined condition is that, as the negative pressure in the downstream flow path section to which the dust collection section is connected increases, the engaging section elastically deforms and disengages from the partition section. The aforementioned partition is, If the predetermined conditions are not met, the engagement with the engaging portion holds it in the closed position, restricting the dust collection force of the dust collection source from acting on the dust storage space of the dust storage portion. The cleaning tool set according to claim 1, wherein, in response to the fulfillment of the predetermined conditions, the set is displaced from the closed position to the open position, thereby allowing the dust-collecting force of the dust collection source to act upon the dust storage space of the dust storage section.

11. The dust storage section is provided with a dust discharge port that allows dust to flow out. The recovery duct is formed such that the flow path communicates with the dust storage space of the dust storage section connected to the recovery duct through the dust discharge port. The aforementioned dust collection regulating unit is A partition is provided in the recovery duct so as to be displaceable between a closed position that divides the flow path of the recovery duct into a downstream flow path on the dust collection source side and an upstream flow path on the dust storage unit side connected to the recovery duct, and an open position that connects the downstream flow path and the upstream flow path. A negative pressure detection unit for detecting the vacuum level in the downstream channel section, The system includes a partition drive unit that displaces the partition from the closed position to the open position, The aforementioned predetermined condition is that the vacuum level detected by the negative pressure detection unit has reached a predetermined value. The partition drive unit is, If the predetermined conditions are not met, the partition is held in the closed position, thereby restricting the dust collection force of the dust collection source from acting on the dust storage space of the dust storage section. The cleaning tool set according to claim 1, wherein, in response to the fulfillment of the predetermined conditions, the partition is displaced from the closed position to the open position, thereby allowing the dust-collecting force of the dust collection source to act upon the dust storage space of the dust storage section.

12. The dust storage section is provided with a dust discharge port that allows dust to flow out. The recovery duct is formed such that the flow path communicates with the dust storage space of the dust storage section connected to the recovery duct through the dust discharge port. The aforementioned dust collection regulating unit is A partition is provided in the recovery duct so as to be displaceable between a closed position that divides the flow path of the recovery duct into a downstream flow path on the dust collection source side and an upstream flow path on the dust storage unit side connected to the recovery duct, and an open position that connects the downstream flow path and the upstream flow path. The system includes a partition drive unit that displaces the partition from the closed position to the open position, The aforementioned predetermined condition is that a predetermined period of time has elapsed since the activation of the dust collection source. The partition drive unit is, If the predetermined conditions are not met, the partition is held in the closed position, thereby restricting the dust collection force of the dust collection source from acting on the dust storage space of the dust storage section. The cleaning tool set according to claim 1, wherein, in response to the fulfillment of the predetermined conditions, the partition is displaced from the closed position to the open position, thereby allowing the dust-collecting force of the dust collection source to act upon the dust storage space of the dust storage section.

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