JP6338972B2 - Dust collector and vacuum cleaner - Google Patents

Description

  The present invention relates to a dust collector and a vacuum cleaner.

  2. Description of the Related Art A so-called cyclonic vacuum cleaner is known that includes a cyclone type dust collector that centrifuges dust by swirling sucked air in a dust collection container. In general, a cyclone type dust collector is provided with a filter for further filtering the air after the dust is centrifuged. As a result, fine dust that has not been centrifuged is collected by the filter.

  In recent years, there have been proposed multi-cyclone vacuum cleaners that are provided with two stages of centrifugal separators for swirling air and that are designed so that the size of dust that is centrifuged in each centrifugal separator is different. Such a multi-cyclone type vacuum cleaner is disclosed in Patent Documents 1 and 2, for example.

  In the dust collector in the electric vacuum cleaners of Patent Literatures 1 and 2, coarse dust having a relatively large size in the air containing dust is centrifuged by a first centrifugal separation unit (first cyclone), and the first centrifugal separation is performed. Fine dust that has not been centrifuged in the unit is centrifuged in the second centrifuge (second cyclone). A plurality of the second centrifuge units are arranged around the first centrifuge unit. Moreover, the dust collector in the vacuum cleaner of patent document 1, 2 is provided with the dust collection container which collects the fine dust isolate | separated by the 2nd centrifugation part. In particular, in the dust collector of Patent Document 1, the lower end portion of the dust collecting container can be opened and closed by a bottom lid. The bottom lid can be rotated by a hinge, and the closed state is maintained by a locking mechanism.

  Patent Documents 3 to 5 disclose cyclone-type vacuum cleaners in which a dust collecting container is provided with a storage portion for storing a cleaning member such as a care brush. In the cyclone type vacuum cleaner disclosed in Patent Documents 3 and 4, the storage portion for storing the cleaning member is provided on the side surface of the dust collecting container in the cyclone type dust collector. On the other hand, in the cyclone type electric vacuum cleaner disclosed in Patent Document 5, the storage portion for storing the cleaning member is provided in a housing that detachably covers the opening above the dust collecting container. A filter unit is accommodated in the housing.

JP 2013-236671 A (published November 28, 2013) JP 2006-205162 A (published August 10, 2006) Japanese Patent Laying-Open No. 2011-245196 (released on December 8, 2011) Japanese Unexamined Patent Publication No. 2007-384 (released on January 11, 2007) JP 2010-115430 A (published May 27, 2010)

  In the techniques disclosed in Patent Documents 3 and 4, the storage portion for storing the cleaning member is provided to protrude from the outer peripheral surface of the dust collection container of the dust collector. Therefore, when the dust collector is taken out from the cleaner body in order to clean the dust container of the dust collector, the storage portion is easily caught on the cleaner body. As a result, in some cases, when the dust collector is taken out from the cleaner body, there arises a problem that the cleaning member comes off from the dust container.

  Further, in the dust collecting container of the dust collecting apparatus of Patent Document 1, when the hinge shaft for rotating the bottom lid is defective, when the user performs the closing operation of the bottom lid, There is a possibility that the bottom cover and the dust container are misaligned, and the dust container is not securely closed by the bottom cover.

  The present invention has been made in view of the above-described conventional problems, and a first object thereof is to clean the dust collecting container of the dust collecting device when the container is removed from the cleaner body. The second purpose is to provide a dust collector that is not easily caught by the main body and a vacuum cleaner, and the second purpose is that the locking operation of the bottom lid by the locking mechanism is improved, and the dust collection container is securely closed by the bottom lid. An object of the present invention is to provide a dust collector and a vacuum cleaner.

  In order to solve the above problems, a dust collecting apparatus according to one aspect of the present invention includes a centrifugal separation unit that separates dust in the air, and a cylindrical dust collecting container that collects the dust. In the dust collector, a storage portion for storing a cleaning member capable of cleaning the dust collector is formed on a side surface of the dust collection container, and the storage portion is more than the cylindrical side surface around the storage portion. It is a recessed part depressed in the central axis side of the dust collecting container.

  In order to solve the above-described problems, a dust collector according to another aspect of the present invention includes a centrifugal separation unit that separates dust in the air, and a cylindrical dust collection container that collects the dust. A dust collector, the dust collector main body, a bottom lid capable of opening the bottom of the dust collector main body, and the bottom lid engaged with the bottom lid to keep the bottom lid closed. And a positioning part for positioning the bottom cover with respect to the dust collecting part main body in the closed state.

  According to one aspect of the present invention, when the dust collecting container of the dust collector is cleaned from the cleaner body, the storage portion is less likely to be caught on the cleaner body.

  Moreover, according to the other aspect of this invention, the latching operation of the bottom cover by a latching mechanism becomes favorable, and there exists an effect that a dust collecting container is closed firmly with a bottom cover.

It is an external view which shows the external appearance of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a perspective view which shows the structure of the vacuum cleaner main body contained in the vacuum cleaner which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the structure of the vacuum cleaner main body contained in the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a side view which shows the structure of the dust collector which concerns on Embodiment 1 of this invention. It is a perspective view which shows the external appearance of the dust collector which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the structure inside the dust collector which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the structure inside the dust collector which cut | disconnected the dust collector which concerns on Embodiment 1 of this invention in the direction different from FIG. (A) is a top view of the 2nd centrifugation unit in the dust collector which concerns on Embodiment 1 of this invention, (b) is BB sectional drawing of (a), (c) is It is an AA line sectional view of (a). It is a perspective view which shows the structure which looked at the dust collector which concerns on Embodiment 1 of this invention from back. It is a cross-sectional perspective view when the dust collector which concerns on Embodiment 1 of this invention is cut | disconnected by the surface perpendicular | vertical to an up-down direction. It is sectional drawing when the dust collector which concerns on Embodiment 1 of this invention is cut | disconnected by the surface perpendicular | vertical to an up-down direction. (A) is a disassembled perspective view which shows the structure of the latching mechanism with which the dust collector which concerns on Embodiment 2 of this invention was equipped, (b) is the disassembled perspective view seen from the opposite side to (a). It is. It is a perspective view which shows the structure of the bottom cover vicinity of the dust collector which concerns on Embodiment 2 of this invention. It is the perspective view which looked at the structure of the bottom cover vicinity of the dust collector which concerns on Embodiment 2 of this invention from the angle different from FIG. It is a disassembled perspective view which shows the structure of the 2nd centrifugation unit in the dust collector which concerns on Embodiment 3 of this invention. It is a disassembled perspective view which shows the structure of the upper cover main body in the dust collector which concerns on Embodiment 3 of this invention.

Embodiment 1
(Electric vacuum cleaner)
Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 is an external view showing an external appearance of the vacuum cleaner according to the present embodiment. FIG. 2 is a perspective view illustrating a configuration of a vacuum cleaner main body included in the electric vacuum cleaner illustrated in FIG. 1. FIG. 3 is a cross-sectional view illustrating a configuration of a vacuum cleaner main body included in the electric vacuum cleaner illustrated in FIG. 1.

  As shown in FIG. 1, the electric vacuum cleaner according to the present embodiment includes a cleaner main body 1, an air inlet 2, a connection pipe 3, a connection hose 4, an operation handle 5, and the like. As shown in FIG. 2, the cleaner body 1 includes a cyclone dust collector 100 and a drive device 200. The driving device 200 detachably supports the dust collecting device 100 in the front.

  Here, let the surface where the cleaner main body 1 is installed be a horizontal surface. A direction perpendicular to the horizontal plane is defined as a height direction. Moreover, let the opposite side to the drive device 200 in the dust collector 100 be a front side, and let the opposite side to this front side be a rear side.

  The drive device 200 includes an electric blower (not shown), a control device (not shown), and the like. The electric blower has a blower fan for performing intake air and a blower drive motor that rotationally drives the blower fan. Moreover, the said control apparatus has control apparatuses, such as CPU, RAM, and ROM, and controls a vacuum cleaner centrally. Specifically, in the control device, the CPU executes various processes according to a control program stored in the ROM.

  The operation handle 5 is provided with an operation switch (not shown) for allowing the user to operate the vacuum cleaner or to select an operation mode. Further, a display unit (not shown) such as an LED for displaying the current state of the vacuum cleaner is also provided in the vicinity of the operation switch.

  The vacuum cleaner body 1 is connected to the air inlet 2 via a connection hose 4 connected to the front end of the dust collector 100 of the vacuum cleaner body 1 and a connection pipe 3 connected to the connection hose 4.

  Therefore, in the electric vacuum cleaner according to the present embodiment, the electric blower (not shown) built in the vacuum cleaner main body 1 is operated, so that intake from the intake port portion 2 is performed. Then, the air taken in from the air inlet 2 flows into the dust collector 100 through the connection pipe 3 and the connection hose 4. In the dust collector 100, dust is centrifuged from the sucked air. The air after the dust is separated by the dust collector 100 is exhausted from an exhaust port (not shown) provided at the rear end of the cleaner body 1.

  In addition, as shown in FIG. 3, the driving device 200 includes an electric blower 220. When the electric blower 220 is operated, an air flow is generated in the dust collector 100. A filter 230 is provided on the drive device 200 side.

  The driving device 200 includes an exhaust duct portion 210 that communicates with an exhaust outlet to the outside of the dust collector 100, and an accommodating portion 231 that accommodates the filter 230. The exhaust duct unit 210 is disposed on the upper part of the electric blower 220. In addition, a lattice portion 211 is provided on the exhaust duct portion 210 on the dust collector 100 side. The accommodating portion 231 is disposed between the exhaust duct portion 210 and the electric blower 220. The filter 230 is a filter having a zigzag (pleated) filter or the like.

  The air discharged from the dust collector 100 passes through the lattice part 211, passes through the exhaust duct part 210, passes through the filter 230 housed in the housing part 231, and reaches the electric blower 220.

(Dust collector)
Hereinafter, the configuration of the dust collector 100 will be described in detail with reference to FIGS. FIG. 4 is a side view showing the configuration of the dust collector 100. FIG. 5 is a perspective view showing the appearance of the dust collector 100. FIG. 6 is a cross-sectional view showing an internal configuration of the dust collector 100. FIG. 7 is a cross-sectional view showing an internal configuration of the dust collector 100, in which the dust collector 100 is cut in a direction different from that of FIG.

  As shown in FIGS. 4 to 7, the dust collector 100 includes a dust collector main body 110, a second centrifuge unit 120, and an upper cover unit 130. The dust collection unit main body 110 includes a dust collection cup 111 (dust collection container) having an upper opening. The second centrifuge unit 120 is detachably attached to the upper opening of the dust collection cup 111. The upper cover unit 130 is attached to the upper part of the second centrifuge unit 120.

(Dust collector body 110)
An inlet 113 for introducing air containing dust is formed at the front end of the dust collection cup 111 of the dust collection body 110. The inlet 113 serves as a connection portion with the connection hose 4. The dust collection cup 111 is open at the top and is divided into a first dust collection chamber 111A and a second dust collection chamber 111B formed around the first dust collection chamber 111A. The second dust collection chamber 111B is configured such that its inner wall includes the outer peripheral surface 111C of the first dust collection chamber 111A. Moreover, the lower part (bottom) of the dust collection cup 111 is also opened. A bottom lid 114 is provided at the bottom of the dust collection cup 111 so as to be openable and closable. Since the second dust collection chamber 111B is provided on the outer periphery of the first dust collection chamber 111A, the dust collection cup 111 can be easily washed with water, and maintenance is facilitated.

  The bottom cover 114 has a substantially flat plate shape and can be rotated by a hinge 116. The bottom lid 114 is normally kept closed by the locking mechanism 140 being in a locked state. When discharging the dust accumulated in the dust collection cup 111, the locking state of the locking mechanism 140 is released and the bottom lid 114 is opened by the user's operation.

(Second centrifuge unit 120)
The configuration of the second centrifuge unit will be described with reference to FIG. 8A is a top view of the second centrifuge unit 120, FIG. 8B is a cross-sectional view taken along the line BB of FIG. 8A, and FIG. FIG. 9 is a cross-sectional view taken along line AA in FIG.

  As shown in FIG. 8, the second centrifuge unit 120 includes an upper lid body 121 (upper lid) that closes the dust collection cup 111 from above, and an inner cylinder unit 122. The inner cylinder unit 122 extends downward from the center of the lower surface of the upper lid body 121 and has a space through which air passes.

  The upper lid body 121 includes a cylinder part 121a, an upper closing part 121b that closes the central part of the cylinder part 121a from above, and a lower closing part 121c that closes the cylinder part 121a from below. A communication hole 121d communicating with the inner cylinder unit 122 is provided at the center of the lower blocking portion 121c. The upper lid body 121 is detachably attached to the dust collection cup 111. For this reason, the dust collector 100 can be easily disassembled, and maintenance becomes easy.

  Eight second centrifugal separators 80 (second cylindrical centrifugal separators) are arranged in a circle around the communication hole 121d. These second centrifugal separators 80 are provided so as to extend downward from the lower closing part 121c and communicate with the second dust collecting chamber 111B of the dust collecting cup 111.

  The second centrifugal separation unit 80 includes a swivel cylinder portion 82 in which air flowing in from the inflow port 81 swirls. The swivel cylinder portion 82 has a tapered structure configured to become narrower downward. In the center of the upper surface of the swivel cylinder portion 82, an outlet 83a through which air flows out is formed. An exhaust cylinder 83 is provided so as to extend downward from the outlet 83a. The air separated by the second centrifugal separator 80 passes through the exhaust pipe 83 and is discharged upward from the outlet 83a provided in the upper part. In addition, the dust (second dust) separated by the second centrifugal separator 80 is discharged from the discharge port 82a of the swivel cylinder portion 82 to the second dust collection chamber 111B of the dust collection cup 111.

  Here, a flat surface that is flush with the upper surface of the second centrifuge 80 is formed on the upper portion of the upper lid body 121. For this reason, the upper part of the upper lid body 121 can be easily cleaned, and maintenance of the dust collector 100 is facilitated.

  The inner cylinder unit 122 includes an inner cylinder part 123 connected to the upper lid body 121 and a dust partition part 124 connected to the lower part of the inner cylinder part 123.

  The inner cylinder portion 123 is connected to the lower portion of the upper lid main body 121 and is configured to vent the air after cyclone separation by a first centrifugal separator described later to the upper portion of the upper lid main body 121. The inner cylinder portion 123 is connected to the upper end edge 123a connected to the communication hole 121d of the upper lid main body 121, the body portion 123c having a plurality of slits 123b for allowing air after centrifugation, and the lower portion connected to the dust partition portion 124. And a side edge 123d. Note that a mesh-shaped intake-side filter is wound around the outer periphery of the trunk portion 123c.

  The dust partitioning portion 124 includes a disc-shaped flange portion 124a having a center hole, a large diameter cylindrical portion 124b, and a small diameter cylindrical portion 124c. The large-diameter cylindrical portion 124b is provided so as to protrude in both the upward and downward directions from the outer peripheral end of the flange portion 124a. Further, the small diameter cylindrical portion 124c is provided to hang from the inner peripheral portion of the flange portion 124a. Moreover, the lower end part of the small diameter cylinder part 124c is a closed state, and the cylinder part is closed.

(Operation of vacuum cleaner)
The operation of the vacuum cleaner according to this embodiment will be described below. First, when the electric vacuum cleaner is operated, the control device of the driving device 200 operates the electric blower and sucks air from the air inlet portion 2. The air sucked from the air inlet 2 flows into the cleaner body 1 through the connecting pipe 3 and the connecting hose 4 and through the connecting part 201 connected to the connecting hose 4. The dust-containing air that has flowed into the cleaner body 1 flows into the dust collector 100. The dust-containing air that has flowed into the inlet 113 of the dust collector 100 passes through the upper cover unit 130 via the separation path X indicated by the arrows in FIGS. It is discharged and sucked into the electric blower of the driving device 200.

  In the dust collector 100, the upper part acts as a first centrifuge part 70 (first cylindrical centrifuge part) with a flange part 124a at the upper part of the dust partition part 124 in the dust cup 111 as a boundary. That is, in the dust collector 100, the first centrifugal separation unit 70 is a swirling air passage constituted by the inner surface of the first dust collection chamber 111 </ b> A in the dust collection cup 111, the outer peripheral surface of the inner cylinder portion 123, and the like. The inflow port 113 opens in the tangential direction of the swirling air passage formed by the first centrifugal separator 70. Therefore, the dust-containing air that has flowed in through the inflow port 113 swirls in the swirl air passage formed by the first centrifugal separator 70 as in the separation path X of FIG. Dust is centrifuged. Among the dust that has been centrifuged, relatively large coarse dust (first dust) falls along the inner surface of the dust collection cup 111 due to the action of centrifugal force and is accumulated below the dust partition 124. The

  The air from which the coarse dust has been separated passes through the inner cylinder portion 123 (see the separation path X in FIG. 6). At this time, the relatively small fine dust (second dust) that has not been separated by the first centrifugal separator 70 rises along with the air flow through the slit 123b of the inner cylinder 123. On the other hand, the coarse dust is filtered by a mesh filter wound around the trunk portion 123c. The air that has passed through the inner cylinder portion 123 passes through the communication hole 121d of the upper lid main body 121, reaches the space formed by the upper closing portion 121b, and flows into this second centrifuge portion 80 from this space.

  In the second centrifugal separator 80, the inflow port 81 into which the dust-containing air flows is opened in the tangential direction of the swirl flow path of the air formed between the swirl tube portion 82 and the exhaust tube 83. Therefore, the dust-containing air flowing in from the inflow port 81 swirls along the inner peripheral surface of the swirl tube portion 82 as in the separation path X shown in FIG. The second centrifugal separator 80 is configured so that the turning radius of the dust-containing air is smaller than the turning radius in the first centrifugal separator 70 and the turning speed is higher than the turning speed in the first centrifugal separator 70. Designed. Thereby, with respect to the dust-containing air that has passed through the first centrifugal separator 70, dust that is smaller than the coarse dust separated by the first centrifugal separator 70, that is, fine dust, can be separated. Therefore, fine dust (second dust) in the dust-containing air is centrifuged by the swirling of the air in the second centrifugal separator 80, falls along the inner peripheral surface of the swivel cylinder portion 82, and is discharged. It enters the second dust collection chamber 111B from the outlet 82a, and is finally stored on the bottom lid 114 in the second dust collection chamber 111B.

  The air from which the fine dust (second dust) has been separated passes through the exhaust pipe 83 provided at the center of each second centrifugal separator 80 and is discharged from the outlet 83a ((( (See separation path X in b)).

  The air discharged from the outlet 83a passes through the upper cover unit 130 and is discharged from the dust collector 100 (see the separation path X in FIG. 6).

  In the dust collector 100 according to the present embodiment, the upper cover unit 130 may be provided with a filter unit having a zigzag (pleated) filter or the like. This filter unit may be provided inside the driving device 200. By providing the filter unit in the drive device 200, the dust collector 100 can be reduced in weight.

  FIG. 9 is a perspective view showing the configuration of the dust collector 100 as viewed from the rear. FIG. 10 is a cross-sectional perspective view when the dust collector 100 according to the present embodiment is cut along a plane perpendicular to the vertical direction. Moreover, FIG. 11 is sectional drawing when the dust collector 100 which concerns on this embodiment is cut | disconnected by the surface perpendicular | vertical to an up-down direction.

  As shown in FIG. 9, a storage portion 111 </ b> D that stores a cleaning member 115 that can clean the dust collector 100 is formed on the side surface of the dust collection cup 111. As shown in FIGS. 10 and 11, the storage portion 111 </ b> D is a concave portion that is recessed toward the central axis C of the dust collection cup 111 with respect to the surrounding cylindrical side surface 111 </ b> E. Specifically, the cleaning member 115 is a care brush for cleaning the centrifuge (the first centrifuge 70, the second centrifuge 80), the filter, and the like. Further, the “cylinder side surface 111E” around the storage portion 111D here means the side surface of the cylinder constituting the dust collecting cup 111, and the surface of the raised portion or the protruding portion formed on the side surface of the dust collecting cup 111. I don't mean.

  As described above, the storage portion 111D is a concave portion that is recessed toward the central axis C of the dust collection cup 111 with respect to the surrounding cylindrical side surface 111E, and is not provided protruding from the cylindrical side surface 111E. Therefore, when removing the dust collector 100 from the cleaner body 1 in order to clean the dust collection cup 111 of the dust collector 100, the storage portion 111D is less likely to be caught by the cleaner body 1.

  In the dust collector 100 according to the present embodiment, the second dust collection chamber that houses the second centrifugal separation unit 80 is provided around the first dust collection chamber 111A, and the second dust collection chamber section 111B1 and It is divided into 111B2.

  As shown in FIGS. 10 and 11, among the eight second centrifuges 80, the four second centrifuges 80 are accommodated in the second dust collection chamber section 111B1, and the remaining four second centrifuges 80 are accommodated. The 2 centrifuge 80 is accommodated in the second dust collection chamber section 111B2. Thus, by dividing the second dust collection chamber into the second dust collection chamber sections 111B1 and 111B2, for example, fine dust accumulated in the second dust collection chamber section 111B1 is separated into the second dust collection chamber section. Although there is a possibility of reflowing into the second centrifuge 80 accommodated in 111B1, it does not reflow into the second centrifuge 80 accommodated in the second dust collection chamber section 111B2. Therefore, the number of the second centrifugal separators 80 into which the fine dust accumulated in the second dust collecting chamber re-flows is reduced, and as a result, the fine dust is prevented from flowing into the second centrifugal separator 80 again. be able to.

  In addition, a storage portion 111D as the concave portion is provided between the second dust collection chamber section 111B1 and the second dust collection chamber section 111B2 provided around the first dust collection chamber 111A. By using the recess formed between the second dust collection chamber section 111B1 and the second dust collection chamber section 111B2 as the storage portion 111D, the space can be used effectively.

[Embodiment 2]
The following will describe another embodiment of the present invention with reference to FIGS. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted. FIG. 12A is an exploded perspective view showing the configuration of the locking mechanism 140 provided in the dust collector 100 according to the present embodiment, and FIG. 12B is the same as FIG. It is the disassembled perspective view seen from the other side. FIG. 13 is a perspective view showing a configuration in the vicinity of the bottom lid 114 of the dust collector 100 according to the present embodiment. FIG. 14 shows a configuration in the vicinity of the bottom lid 114 of the dust collector 100 according to the present embodiment. It is the perspective view seen from another angle.

  As shown in FIGS. 12A and 12B, the locking mechanism 140 includes a locking knob 141 that can slide in the direction of arrow A, and a support member that supports the upper portion of the locking knob 141 in the closed state. 142 and a spring 143 accommodated in the locking knob 141. A rail-like protruding portion 141e protruding upward is formed on the upper surface of the locking knob 141. The support member 142 is formed with a recess 142b that accommodates the protruding portion 141e. The concave portion 142b is open at the direction side of the arrow A. For this reason, when the locking knob 141 moves in the direction of arrow A, the protruding portion 141e slides through the recess 142b.

  The dust collecting cup 111 is provided with mounting ribs 144, 145, and 146 for mounting the locking knob 141 and the support member 142. The bottom lid 114 is provided with a locking portion 147 that locks the locking knob 141 in the closed state. The locking portion 147 is formed with an inclined surface 147a that decreases as the locking knob 141 slides in the direction in which the locking knob 141 slides (direction of arrow A).

  The mounting rib 144 is formed in a flat plate shape that protrudes from the side surface of the dust collection cup 111. An engaging portion 144 a is formed on the upper surface of the mounting rib 144. The support member 142 has an opening 142a. When the engaging portion 144a is engaged with the opening 142a, the support member 142 is attached to the side surface of the dust collection cup 111 by the attachment rib 144.

  The mounting rib 145 is a U-shaped rib protruding from the side surface of the dust collection cup 111. A locking knob 141 is attached to the attachment rib 145. A slit 145a is formed at the center of the mounting rib 145 in the height direction. A flat plate portion 141a to be inserted into the slit 145a is provided on the side of the locking knob 141 that faces the mounting rib 145. When the locking knob 141 moves in the direction of arrow A, the flat plate portion 141a slides through the slit 145a. Thereby, when the latching knob 141 slides in the direction of the arrow A, the positional deviation in the height direction is reduced. Further, the mounting rib 145 is provided with a protrusion 145b. The protrusion 145b locks the end of the spring 143 in the arrow A direction. The end of the spring 143 opposite to the arrow A is in contact with the region 141 d of the inner wall surface of the locking knob 141. Thereby, the spring 143 biases the locking knob 141 in the direction opposite to the arrow A.

  The attachment rib 146 is a rib protruding downward, and is located between the two locking portions 147 formed on the bottom lid 114 in the closed state. The mounting rib 146 functions as a guide for guiding the bottom lid 114 to the lower end of the dust collecting cup 111 when the bottom lid 114 is rotated to perform a closing operation. Here, the surface that contacts when the dust collecting cup 111 and the bottom cover 114 are closed is a flat surface and is easily displaced, and thus the position is difficult to be determined when the bottom cover 114 is closed. The bottom lid 114 is always fixed at a fixed position by the mounting rib 146. Therefore, the mounting rib 146 has a role as a guide so that the bottom lid 114 is closed. The positioning portions (the concave portion 111F and the convex portion 114A) described above serve as a guide for guiding the bottom lid 114 before the bottom lid 114 is closed.

  Further, the mounting rib 146 is provided with a convex portion 146a protruding upward. Further, the inner wall surface of the locking knob 141 is provided with a hole portion 141b into which the convex portion 146a is inserted. When the locking knob 141 moves in the direction of arrow A, the convex portion 146a moves along the hole portion 141b.

  The locking knob 141 is provided with two hook portions 141c so as to correspond to the two locking portions 147 formed on the bottom lid 114. When the hook portion 141c and the locking portion 147 are engaged, the locking mechanism 140 is locked, and the closed state of the dust collection cup 111 and the bottom lid 114 is maintained.

  From this state, when the user slides the locking knob 141 in the direction of arrow A against the biasing force of the spring 143, the engagement between the hook portion 141c and the locking portion 147 is released. Then, the bottom cover 114 is rotated by its own weight with the hinge 116 as an axis, and the dust collection cup 111 is opened. When the user releases his / her hand from the locking knob 141, the locking knob 141 returns to its original position by the biasing force of the spring 143.

  Further, when the user performs the closing operation of the bottom lid 114 from the state where the dust collection cup 111 is opened, the inclined surface 147a of the locking portion 147 comes into contact with the inclined surface of the hook portion 141c of the locking knob 141. When the closing operation is further performed, the locking knob 141 slides in the direction of the arrow A, and then the hook portion 141c and the locking portion 147 are engaged, and the locking mechanism 140 is locked.

  Here, when the axis of the hinge 116 that rotates the bottom lid 114 is defective, when the user performs the closing operation of the bottom lid 114, the bottom lid 114 and the dust collecting cup 111 are held in the locked state of the locking mechanism 140. And the dust collection cup 111 may not be firmly closed by the bottom lid 114.

  Therefore, in the dust collector 100 according to the present embodiment, as shown in FIGS. 13 and 14, a concave portion 111 </ b> F (positioning portion) is provided at the lower end portion of the dust collection cup 111. And the convex part 114A (positioning part) is provided in the position corresponding to the recessed part 111F in the bottom cover 114 in the state which closed the dust collecting cup 111 with the bottom cover 114. FIG. In such a configuration, when the user performs the closing operation of the bottom lid 114 and the dust collection cup 111 is completely closed by the bottom lid 114, the concave portion 111F and the convex portion 114A are engaged, whereby the dust collection cup 111 and the bottom lid are engaged. 114 is positioned. As a result, the locking operation of the bottom lid 114 by the locking mechanism 140 becomes good, and the dust collecting cup 111 is firmly closed by the bottom lid 114.

  As shown in FIG. 14, a stopper 114 </ b> B is provided on the upper surface of the bottom lid 114. In a state where the dust collection cup 111 is closed by the bottom lid 114, the bottom portion of the small-diameter cylindrical portion 124 c of the dust partition portion 124 is at substantially the same position as the top surface of the bottom lid 114. The stopper 114 </ b> B is for stopping the dust swirled by the first centrifugal separator 70. There may be a gap between the bottom of the small diameter cylindrical portion 124 c and the top surface of the bottom lid 114. That is, the bottom part of the small diameter cylindrical part 124c and the upper surface of the bottom cover 114 only need to be at positions facing each other. Further, the bottom surface of the flange portion 124 may be closed with the configuration in which the small-diameter cylindrical portion 124c portion is deleted. In this case, the stopping force of the dust that the stopper 114B turns may be inferior.

  The dust (first dust) centrifuged by the first centrifugal separator 70 falls along the inner surface of the dust collection cup 111 by the action of centrifugal force, and is accumulated below the dust partition 124. . The dust accumulated in this manner is swirled around the small-diameter cylindrical portion 124c of the dust partitioning portion 124 by the swirling flow of air by the first centrifugal separator 70. The stopper 114 </ b> B stops the dust thus swung. The stopper 114 </ b> B stops the swirling of dust and collects dust below the dust partition 124.

  Here, normally, the small-diameter cylindrical portion 124c of the dust partitioning portion 124 has a structure in which a bottom portion is opened and opened downward. Therefore, in order to prevent dust from rising and mixing from the bottom of the small diameter cylindrical portion 124c, the bottom cover 114 is provided with a receiving portion that is in close contact with the bottom of the small diameter cylindrical portion 124c. Or when the surface facing the bottom part of the small diameter cylinder part 124c in the bottom cover 114 is a plane, in order to improve the adhesiveness of the bottom cover 114 and the bottom part of the small diameter cylinder part 124c, a sealing member is provided. When the bottom lid 114 has a flat surface facing the bottom of the small-diameter cylindrical portion 124c and no seal member is provided between the bottom lid 114 and the bottom of the small-diameter cylindrical portion 124c, the collected dust is separated into a dust partition. It is mixed in the small diameter cylindrical portion 124c of the portion 124. Since the small diameter cylindrical portion 124c has a structure opened downward, it becomes difficult to clean the dust mixed in the small diameter cylindrical portion 124c deeply with a brush or the like.

  Therefore, in the dust collecting apparatus 100 according to the present embodiment, a closed portion 124d that closes an opening portion opened downward in the small diameter cylindrical portion 124c of the dust partition portion 124 is provided. The closing portion 124d is provided at the bottom of the small diameter cylindrical portion 124c.

  The closed portion 124d prevents the dust collected below the dust partitioning portion 124 from being mixed deep inside the small diameter cylindrical portion 124c. Therefore, the small-diameter cylindrical portion 124c of the dust partition portion 124 can be easily cleaned, and maintenance of the inner cylinder unit 122 including the dust partition portion 124 is facilitated.

[Embodiment 3]
Another embodiment of the present invention will be described below with reference to FIGS. 15 and 16. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted. FIG. 15 is an exploded perspective view showing the configuration of the second centrifuge unit 120 in the dust collector according to the present embodiment. FIG. 16 is an exploded perspective view showing the configuration of the upper lid body 121 in the dust collector according to the present embodiment.

  As shown in FIG. 15, the dust collector according to the present embodiment is different from the first embodiment in that an inner cylinder unit 122 is detachably provided on the upper lid body 121. More specifically, the upper edge 123a of the inner cylinder portion 123 is detachably connected to the communication hole 121d of the upper lid body 121. On the other hand, the upper lid main body 121 has a configuration in which the cylindrical portion 121a, the upper closed portion 121b, and the lower closed portion 121c are integrated by ultrasonic welding. Therefore, the upper lid body 121 and the inner cylinder portion 123 can be easily disassembled, and maintenance such as cleaning of the upper lid body 121 is facilitated.

  In addition, as shown in FIG. 16, the lower blocking portion 121 c is provided with a lower portion 82 b of the turning cylinder portion 82 in each second centrifugal separation portion 80. A hollow portion 121e communicating with the communication hole 121d is provided at the center of the cylindrical portion 121a. An upper part 82c of the swivel cylinder part 82 is formed corresponding to the lower part 82b in a space partitioned by the side wall of the cavity part 121e in the cylinder part 121a. A concave portion 82d communicating with the upper portion 82c of the swiveling cylindrical portion 82 is provided on the side wall of the hollow portion 121e in the cylindrical portion 121a. The recess 82d is provided corresponding to the upper portion 82c. Further, an exhaust cylinder 83 is provided in the upper closing part 121b corresponding to the upper part 82c of the swivel cylinder part 82. And the outflow port 83a is provided in the upper surface of the upper side obstruction | occlusion part 121b.

  As described above, the upper lid body 121 is configured such that the second centrifuge unit 80 is configured when the cylinder part 121a, the upper closing part 121b, and the lower closing part 121c are assembled. When the cylinder part 121a and the lower closing part 121c are assembled, the lower part 82b and the upper part 82c are connected to form the turning cylinder part 82. Further, when the upper closing part 121 b and the cylinder part 121 a are assembled, each exhaust pipe 83 is inserted into the upper part 82 c of the revolving cylinder part 82. A space communicating with the second centrifugal separator 80 is formed by the side wall of the cavity 121e and the upper closed part 121b, and an inflow port is formed by the recess 82d and the upper closed part 121b formed on the side wall of the cavity 121e. 81 is formed.

  Further, in the conventional dust collector, the second centrifugal separator has a structure in which the components are screwed via the seal packing, and the seal packing has a complicated shape. Therefore, the number of processes for manufacturing the second centrifugal separator in the conventional dust collector has been increased. According to the dust collector 100, the cylindrical part 121a, the upper closing part 121b, and the lower closing part 121c, which are constituent parts of the second centrifugal separation part 80, are ultrasonically welded to each other and require seal packing or the like. Therefore, the number of manufacturing steps can be reduced. Furthermore, the weight reduction of the upper lid body 121 provided with the second centrifugal separator 80 can be realized.

[Summary]
A dust collector 100 according to aspect 1 of the present invention includes a centrifugal separator (a first centrifugal separator 70 and a second centrifugal separator 80) that separates dust in the air, and a cylindrical collector that collects the dust. A dust collecting device 100 including a dust container (dust collecting cup 111), and a storage portion 111D for storing a cleaning member 115 capable of cleaning the dust collecting device is formed on a side surface of the dust collecting container. The storage portion 111D is a recessed portion that is recessed toward the central axis C of the dust collecting container from the surrounding cylindrical side surface 111E. Here, the “cylinder side surface 111E” around the storage portion 111D means the side surface of the cylinder constituting the dust collecting container, and does not mean the surface of the raised portion or the protruding portion formed on the side surface of the dust collecting container.

  According to said structure, storage part 111D is a recessed part depressed in the center axis C side of the dust collecting cup 111 rather than the surrounding cylinder side surface 111E, and is not provided in the cylinder side surface 111E. Therefore, when the dust collector 100 is taken out from the cleaner body 1 in order to clean the dust collecting container of the dust collector 100, the storage portion 111D is less likely to be caught by the cleaner body 1.

  In the dust collector 100 according to aspect 2 of the present invention, in the aspect 1, the cleaning member 115 may be a brush.

  A dust collector 100 according to aspect 3 of the present invention includes a centrifugal separator (first centrifugal separator 70, second centrifugal separator 80) that separates dust in the air, and a cylindrical collector that collects the dust. A dust collecting apparatus 100 including a dust container (dust collecting cup 111), wherein the dust collecting container includes a dust collecting container main body (dust collecting cup 111) and a bottom capable of opening the bottom of the dust collecting container main body. A lid 114; a locking mechanism 140 that engages with the bottom lid 114 to hold the bottom lid 114 in a closed state; and a positioning portion that positions the position of the bottom lid with respect to the dust collecting container body in the closed state ( A concave portion 111F and a convex portion 114A).

  According to the above configuration, the user performs the closing operation of the bottom cover 114 by the positioning unit that positions the bottom cover 114 with respect to the dust collection container body in the closed state, and the dust collection container body is moved by the bottom cover 114. When it is completely closed, the dust container body and the bottom lid 114 are positioned by engaging the positioning portion. As a result, according to the above configuration, the locking operation of the bottom lid 114 by the locking mechanism 140 becomes good, and the dust container main body is firmly closed by the bottom lid 114.

  The dust collector 100 according to Aspect 4 of the present invention is the dust collector 100 according to Aspect 3, wherein the dust collection container (dust collection cup 111) includes an upper lid (upper lid body 121) that closes an upper portion of the dust collection container and the centrifugal separation. An inner cylinder unit 122 that extends downward from the upper lid along the axis of the portion and faces the bottom lid 114, and the inner cylinder unit 122 includes a closing portion 124d that closes an internal space. The portion 124d is preferably provided at the end of the inner cylinder unit 122 on the bottom lid 114 side.

  According to the above configuration, the dust collected below the inner cylinder unit 122 is not mixed deep inside the inner cylinder unit 122 by the closing portion 124d. Therefore, the inner cylinder unit 122 can be easily cleaned, and the maintenance of the inner cylinder unit 122 is facilitated.

  In the dust collector 100 according to the aspect 5 of the present invention, the convex part 114A is provided on one of the dust collection part main body (dust collection cup 111) and the bottom cover 114 in the aspect 3 or 4, and the other is provided on the other side. A concave portion 111F is provided, and the positioning portion is configured by the convex portion 114A and the concave portion 111F, and the engagement of the convex portion 114A and the concave portion 111F causes the dust collecting portion main body in the closed state to The position of the bottom lid 114 is preferably positioned.

  A dust collector 100 according to aspect 6 of the present invention includes a centrifugal separator (first centrifugal separator 70, second centrifugal separator 80) that separates dust in the air, and a cylindrical collector that collects the dust. A dust collecting device 100 including a dust container (dust collecting cup 111), wherein the dust collecting container includes a dust collecting container main body (dust collecting cup 111) and an upper lid that closes an upper portion of the dust collecting container ( An upper lid body 121) and an inner cylinder unit 122 that extends downward from the upper lid along the axis of the centrifugal separator and faces the bottom lid 114, and the inner cylinder unit 122 is attached to and detached from the upper lid. It is characterized by being provided.

  According to said structure, since said inner cylinder unit 122 is provided with respect to the said upper cover so that attachment or detachment is possible, the said upper cover and the said inner cylinder unit 122 can be disassembled easily, and the inside of the said upper cover is cleaned. Maintenance such as the above becomes easy.

  The dust collector 100 according to Aspect 7 of the present invention is the dust collector 100 according to Aspect 6, wherein the upper lid (upper lid main body 121) includes a cylinder part 121a, an upper closing part 121b that closes the central part of the cylinder part 121a from above, and a cylinder part. It is comprised by three members called the lower side obstruction | occlusion part 121c which obstruct | occludes 121a from the lower side, and it is preferable that these three members are ultrasonically welded mutually.

  According to said structure, in the said upper cover, three members, the cylinder part 121a, the upper side obstruction | occlusion part 121b, and the lower side obstruction | occlusion part 121c, are ultrasonically welded mutually. Therefore, according to the above configuration, since seal packing or the like is not required, the number of steps for manufacturing can be reduced.

  In the dust collector 100 according to the aspect 8 of the present invention, in the above aspects 1 to 7, the centrifugal separator (the first centrifugal separator 70 and the second centrifugal separator 80) separates the first dust in the air. The first cylindrical centrifuge unit (first centrifuge unit 70) that communicates with the first cylindrical centrifuge unit and the first cylindrical centrifuge unit in the air that has passed through the first cylindrical centrifuge unit. A plurality of second cylindrical centrifuges (second centrifuges 80) for separating second dust that is smaller than the first dust, and the dust collecting container (dust collecting cup 111) includes the first dust collecting container (dust collecting cup 111). It is preferable to be configured to collect the first and second dust.

  The vacuum cleaner which concerns on aspect 9 of this invention is the structure provided with the dust collector of the said aspects 1-7.

  When removing from the main body of the vacuum cleaner, it becomes difficult for the storage part to be caught by the main body of the vacuum cleaner, or the locking operation of the bottom lid by the locking mechanism is improved, and the dust collection container is firmly closed by the bottom lid Machine can be realized.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

  Although the present invention has been described with respect to a vacuum cleaner provided with a cyclone dust collector as a dust collector, not only such a cyclone dust collector but also dust in the air was separated and separated. The dust can be collected, and the separated air can be used in general vacuum cleaners that remove fine dust through a filter.

70 First centrifuge (centrifuge)
80 Second centrifuge (centrifuge)
100 Dust collector 111 Dust collection cup (dust collection container, dust collection container body)
111D Storage part 111E Cylinder side surface 111F Concave part (positioning part)
114 Bottom lid 114A Convex part (positioning part)
114B Stopper 115 Cleaning member 116 Hinge 140 Locking mechanism 120 Second centrifuge unit 121 Upper lid body (upper lid)
121a cylinder part 121b upper closed part 121c lower closed part 122 inner cylinder unit 123 inner cylinder part 124 dust partition part 124d closed part C central axis

Claims (5)

A first tubular centrifuge unit for separating the first dust in the air,
A plurality of second cylinders communicating with the first cylindrical centrifuge and separating second dust smaller than the first dust in the air that has passed through the first cylindrical centrifuge A centrifugal centrifuge,
A cylindrical dust collecting container for collecting the first and second dust ,
The dust collection container is divided into a first dust collection chamber and a second dust collection chamber formed around the first dust collection chamber, and the second dust collection chamber is divided into two second dust collection chamber sections. A divided dust collector,
On the side surface of the dust collecting container, a storage portion for storing a cleaning member capable of cleaning the dust collecting device is formed,
The housing portion includes a feature that the than the tubular side near is recessed toward the central axis of the upper Symbol dust container, and a recess formed by the two split second dust collecting chamber partitioned Dust collector.   The dust collector according to claim 1, wherein the cleaning member is a brush. A centrifuge for separating dust in the air;
A dust collecting device comprising a cylindrical dust collecting container for collecting the dust,
The dust collecting container includes a dust collecting container main body, a bottom lid capable of opening the bottom of the dust collecting container main body, a locking mechanism that engages with the bottom lid and holds the bottom lid closed, and the closure A positioning portion for positioning the bottom lid with respect to the dust container main body in a state ,
The positioning part is
A recess provided at the lower end of the dust container;
A dust collector , comprising: a convex portion provided at a position corresponding to the concave portion in the bottom lid in the closed state . The dust collecting container includes an upper lid that closes an upper portion of the dust collecting container, and an inner cylinder unit that extends downward from the upper lid along the axis of the centrifugal separator and faces the bottom lid,
The said inner cylinder unit has the obstruction | occlusion part which obstruct | occludes an internal space, This obstruction | occlusion part is provided in the edge part by the side of the bottom cover in the said inner cylinder unit, The Claim 3 characterized by the above-mentioned. Dust collector.   The vacuum cleaner provided with the dust collector of any one of Claims 1-4.

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