JP6050946B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner provided with a dust collection chamber that can be attached to and detached from a vacuum cleaner body.

  The current general vacuum cleaner has a vacuum cleaner body equipped with a dust collector and an electric blower, a floor suction body for sucking dust on the floor, and an extension pipe connecting the vacuum cleaner body and the floor suction body. Or a floor movement type connected by a suction hose. Moreover, the cleaner body has a structure that can be freely moved via wheels.

  And as a dust collector, the paper pack system which collects dust with a paper pack filter, and the cyclone system which separates and collects dust using the swirl of air are known.

  The cyclone type dust collector separates air and dust from the air containing the dust sucked from the mouthpiece by centrifugal force at the cyclone separation part equipped with a centrifugal separation function, and collects the separated dust in the dust collection chamber. It is something to be made. And the air which does not contain dust, or the air which contains fine dust passes through the dust separation inner cylinder with the filter function provided in the cyclone separation part, and also has a dust collection filter provided on the upstream side of the electric blower. It passes and is exhausted outside the vacuum cleaner body.

  Such a cyclone type dust collector is disclosed in Japanese Unexamined Patent Application Publication No. 2010-246882 (Patent Document 1). Specifically, the dust collector is configured to be divided into a cyclone separator and a dust collection chamber, and includes a dust collection container for collecting and depositing dust in the dust collection chamber, and the dust collection container jumps forward. A cyclone type dust collecting device is provided that has a mechanism that expands and disperses, and when dust is thrown away, the dust collecting container is vigorously ejected and the opening is further expanded to easily discharge dust. ing.

JP 2010-246882 A

  By the way, recently, there has been a demand for downsizing or weight reduction (hereinafter collectively referred to as downsizing) of the main body of the vacuum cleaner, but when trying to downsize the cyclone type vacuum cleaner, downsizing of the dust collector is required. It is a necessary condition. On the other hand, there is also a demand to increase the amount of dust that can accumulate in the dust collection chamber to reduce the dust disposal cycle, and therefore, it is necessary to meet the demand for increasing the volume of the dust collection chamber.

  However, in a dust collector that employs a cyclone system, a cyclone separator has a substantially cylindrical separator in part due to the principle that the cyclone separator separates air and dust by centrifugation.

  If the cyclone separation unit and the dust collection chamber are designed to have a small diameter in order to reduce the size of the cyclone type dust collection device, the radial area of the cyclone separation unit and the dust collection chamber is reduced.

  For this reason, it is necessary to make the dust collection container arrange | positioned in the dust collection container accommodating part formed in the dust collection chamber small also according to this in patent document 1. FIG. On the other hand, in order to increase the volume of the dust collection chamber, it is possible to increase the volume by extending the dust collection chamber in the axial direction. is necessary.

  However, when the dust collecting container is lengthened in this way, the narrowing of the inner wall of the dust collecting container and the wall part forming the dust collecting container and the dust collecting chamber in the configuration in which the dust collecting container pops out when the garbage is thrown away and the opening is expanded. There is a phenomenon that dust is caught on the road portion, and there is a problem that it is difficult to discharge and discard the dust. In addition, there was a similar problem in the dust collecting container in which the opening of the dust collecting container does not expand.

  The objective of this invention is providing the novel vacuum cleaner provided with the dust collection chamber which ensures the predetermined dust collection volume and can discharge | emit dust easily from a dust collection container.

  A feature of the present invention is that a dust collection container housing portion formed in the dust collection chamber is provided with a discharge opening for discharging dust on a part of the side surface portion of the dust collection chamber, and an opening / closing lid for opening and closing the discharge opening. The container opening portion of the dust collecting container provided in is placed so as to face the discharge opening portion of the dust collection chamber.

  According to the present invention, a part of the side surface of the dust collection chamber is used as the dust discharge opening, and the container opening of the dust collection container is installed so as to face the discharge opening of the dust collection chamber. The container opening of the dust container can have a large opening area, and there is an effect that dust can be easily discharged.

It is an external appearance perspective view of the vacuum cleaner carrying the dust collector to which this invention is applied. It is a longitudinal cross-sectional view of the cleaner body which mounts the dust collector which becomes one Example of this invention. It is the external appearance perspective view which removed the dust collection chamber of the dust collector which becomes one Example of this invention from the cleaner body. It is an external appearance perspective view when the open / close lid of the dust collection chamber shown in FIG. 3 is opened. It is an external appearance perspective view when the dust collection filter holding lid of the dust collection chamber shown in FIG. 3 is opened. It is a longitudinal cross-sectional view of the dust collector shown in FIG. 3 which becomes one Example of this invention. It is an external appearance perspective view when the dust collection chamber of the dust collector which becomes the 1st other example of the present invention is removed from the main part of a cleaner, and the opening-and-closing lid of a dust collection chamber is opened. It is a longitudinal cross-sectional view of the dust collector shown in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, but a plurality of embodiments are proposed in the present invention. Therefore, although the detailed description is given for each embodiment, the present invention is not limited to these embodiments and includes various modifications and applications within the basic concept of the present invention.

  Hereinafter, the configuration of the first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is an external perspective view of a vacuum cleaner to which the present invention is applied. In FIG. 1, reference numeral 1 is a main body of a vacuum cleaner, and a cyclone type dust collecting device 10 is mounted on the main body 1 of the vacuum cleaner. The vacuum cleaner main body 1 is connected to the hand handle 3 via the suction hose 2, and the hand handle 3 is connected to the mouthpiece 7 via the extension pipe 6. The cleaner body 1 is provided with wheels 11 that can freely move the cleaner body 1.

  Further, the hand handle 3 is provided with a power button 5 provided on the hand operating section 4 for controlling the driving of the electric blower built in the cleaner body 1 and the electric rotating brush provided on the suction body 7. ing.

  FIG. 2 shows a cross-sectional view of the vacuum cleaner main body 1 at a substantially central position. The vacuum cleaner main body 1 has a hose attachment port 12 formed in a housing 11 made of a material such as plastic and sucked into the housing 11. An electric blower 14 housed in a case 16 that generates force is disposed, and a pleated dust collecting filter 13 that cleans exhaust gas is disposed. The electric blower 14 and the dust collection filter 13 are fluidly connected by an air passage 15.

  A dust collector 10 is placed on the front upper portion of the vacuum cleaner body 1 in a state where the dust collector 10 is inclined forward and downward. One of the dust collectors 10 is fluidly connected to the hose attachment port 12 and the other is an electric blower 14. Fluidly connected to the

  Here, the dust collector 10 is generally composed of a cyclone separating part 21 and a dust collecting chamber 22, the cyclone separating part 21 is fluidly connected to the hose attachment port 12, and the dust collecting chamber 22 is fluidly connected to the electric blower 14. Configured to be connected. In addition, although the cyclone separation part 21 and the dust collection chamber 22 were demonstrated as an Example comprised so that isolation | separation was possible in this Embodiment, you may be comprised mutually integrated. This will be described later.

  In the following description, an embodiment in which the cyclone separation unit 21 and the dust collection chamber 22 are separated will be described. However, even if they are configured integrally, the cyclone separation unit 21 and the dust collection chamber 22 are integrated. Therefore, the configuration is substantially the same.

  And the air containing the dust sucked from the suction body 7 flows through the dust collector 10 through the hose attachment port 12 as indicated by the arrow shown in FIG. It is discharged to the outside of the housing 11 made of, for example. In addition, although not shown in figure, the cord reel for supplying electric power is provided inside the housing | casing 11 which forms the outline of the vacuum cleaner main body 1. As shown in FIG.

  When the power button 5 provided on the hand operation unit 4 is turned on by the user, the electric blower 14 is activated to generate suction force, and the air sucked from the mouthpiece 7 and the dust sucked together with the air Are guided in the order of the extension tube 6, the suction hose 2, and the cleaner body 1.

  The air flowing into the cleaner body 1 from the hose attachment port 12 and the dust sucked together with the air are separated into the dust and the air by the cyclone separating unit 21 and the dust collecting chamber 22 constituting the dust collecting device 10, and the dust is separated. The air thus discharged is exhausted from the vacuum cleaner body 1 through the dust filter 13 and the air passage 15 from the electric blower 14.

  FIG. 3 shows the external appearance of the dust collector 10 when it is removed from the vacuum cleaner body 1, FIG. 4 shows the external appearance of the dust discharge opening / closing lid 24, and FIG. The external appearance when the holding lid is opened is shown.

  3 to 5, when the dust collector 10 is removed from the cleaner body 1 or the dust collector 10 is placed on the upper surface portion 10 </ b> A of the dust collector 10 (the upper surface when the dust collector 10 is placed on the cleaner body). Are provided with a handle release portion 25 used to carry the handle and a clamp release button 26 for releasing a lock clamp for locking the open / close lid 24 in a closed state.

  In addition, an air inlet 23 containing dust is provided on a lower surface portion 10B of the dust collector 10 (a surface on the lower side when placed on the cleaner body). The inflow port 23 is connected to the hose attachment port 12.

  An opening 20A for discharging dust is provided in a part of the cylindrical side surface portion 20 of the cyclone separation portion 21 and the dust collection chamber 22 existing between the upper surface portion 10A and the lower surface portion 10B of the dust collector 10. The opening 20A is sealed and opened by the opening / closing lid 24.

  In this embodiment, an opening 20 is formed in the side surface 20 of the dust collection chamber 22. Since the dust collection chamber 22 is removable, the open / close lid 24 is also directed to the dust collection chamber 22. A part (or all) of the open / close lid 24 is provided with a viewing window made of a transparent plastic material so that the amount of dust accumulated can be grasped.

  The side surface portion 20 is formed so as to be orthogonal to the surfaces of the upper surface portion 10A and the lower surface portion 10B, and the end surface 24A on the lower surface portion 10B side of the opening / closing lid 24 is rotatably supported by the hinge mechanisms 41 and 42. The opening / closing lid 24 is opened and closed with the hinge mechanisms 41 and 42 as fulcrums.

  The hinge mechanisms 41, 42 connect the lower end surface 24 </ b> A of the opening / closing lid 24 and the dust collection chamber 22. In this manner, by supporting the opening / closing lid 24 rotatably at the lower end surface 24A on the lower surface portion 10B side, when the dust collecting device 10 is tilted when dust is discharged from the dust collecting device 10, the opening / closing lid 24 becomes gravity. Since it hangs down in the direction, dust can be easily discharged.

  Moreover, the shape of the opening / closing lid 24 is formed in an arc shape along the cylindrical shape of the dust collector 10, but the dust collection chamber 22 can be formed in a rectangular parallelepiped shape to form a flat plate-like opening / closing lid. The basic concept of the present invention includes this configuration.

  However, in the present embodiment, the force generated between the negative pressure inside the opening / closing lid 24 and the atmospheric pressure outside the opening / closing lid 24 generated by the electric blower 14 by configuring the shape of the opening / closing lid 24 in an arc shape. Has become stronger. According to the opening / closing lid 24 of this configuration, since it has an arc shape, the rigidity can be increased, so that it is possible to avoid making the opening / closing lid 24 thicker than necessary.

  The area of the opening 20A in the circumferential direction formed on the side surface 20 is determined by the dust collection capacity of the dust. When the length of the dust collection chamber 22 is constant, the dust collection If the capacity is increased, the width of the opening 20A in the circumferential direction is reduced, and dust may not be discharged smoothly, so that the optimum area of the opening can be determined.

  In this embodiment, the opening 20A is formed up to the maximum diameter portion (= diameter) of the dust collecting chamber in order to increase the opening area. Here, if the circumferential width of the opening 308 is increased, the dust collection capacity is limited. However, the dust storage chamber constituting the dust collection chamber is expanded to the filter storage portion side described later and collected. It is possible to increase the dust capacity.

  Further, a rectangular parallelepiped filter storage portion 20B is formed on the side opposite to the opening 20A and the opening / closing lid 24, and an air outflow opening connected to the electric blower 14 is provided in the filter storage portion 20B.

  The dust collection chamber 22 has a side part 20 partially provided with a substantially cylindrical part, and this side part has a cylindrical surface 20C and a rectangular filter storage part 20B. An opening 20A for discharging dust is formed in a part of the cylindrical surface 20C, and an opening 29D for outflowing intake air is provided on the facing surface of the filter storage portion 20B facing the opening 20A. An opening / closing lid 24 is provided at the opening 20A so as to be opened and closed, and a filter holding lid 13A holding the dust collecting filter 13 is provided at the opening 20D so as to be opened / closed.

  The opening / closing lid 24 includes a shaft 42 at the lower end 24A, and the shaft 42 is supported by a hinge 41 provided at the lower end of the cylindrical surface 20C. FIG. 4 shows a state in which the opening / closing lid 24 is opened, and the opening / closing lid 24 rotates in the forward direction of the dust collection chamber 22 on the drawing with the shaft 42 as a fulcrum. A clamp claw 27 protrudes from the upper end of the opening / closing lid 24, and details of the structure and mechanism are omitted. However, the clamp release button 26 and the clamp claw 27 are interlocked and are not shown by pressing the clamp release button 26. The clamp is configured to release the clamp pawl 27 and open the opening / closing lid 24.

  One end of the filter holding lid 13A is provided with a shaft 42, and the shaft 42 is supported by a hinge 446 provided at the end of the filter storage portion 20B. FIG. 5 shows a state in which the filter holding lid 13A is opened, and the filter holding lid 13A rotates in the forward direction of the filter storage portion 20B on the drawing with the shaft 42 as a fulcrum.

  A dust container 30 is housed in a dust container container 35 formed inside the dust collection chamber 22. The dust collection container storage part 35 is formed in the side surface part 20 forming the dust collection chamber 22 and using a part of the cylindrical surface 20C and a part of the rectangular filter storage part 20B. Further, the dust container storage unit 35 is connected to the outside of the dust collecting chamber 22 through the opening 20A for discharging dust, and the dust accumulated in the dust container 30 is discharged through the opening 20A. Can do. In other words, in the present embodiment, the opening of the dust container storage unit 35 and the opening 20A for discharging dust are shared.

  The dust container 30 accommodated in the dust container container 35 includes a container opening 31 so as to face the dust discharge opening 20A. The container opening 31 of the dust container 30 is urged so as to jump out of the dust container container 35 by an elastic body such as a “spring”.

  Further, the dust collecting container 30 is divided into two parts, that is, a first container piece 30A and a second container piece 30B. On the opposite side of the container opening 31, there are bottom portions of the container pieces 30A and 30B, and the container pieces 30A and 30B are opened and closed by shafts (not shown) provided on the bottom portions.

  When the user depresses the clamp release button 26, when the dust collecting container 30 pushes the opening / closing lid 24, the clamp claw 27 provided on the inner peripheral side of the opening / closing lid 24 is released, and the dust collecting container 30 collects the force by the pushing force of the dust collecting container 30. The opening / closing lid 24 is opened from the side portion 20 of the dust chamber, in other words, the dust discharge opening 20 </ b> A formed in the dust container storage portion 35. The collected dust can be discharged by the momentum that the dust collecting container 30 jumps out.

  The shape of the dust collecting container 30 is not limited to the shape of the present embodiment, and may be a three-dimensional shape having at least one container opening 31. That is, the dust container 30 may be a container having a shape recessed on the opposite side to the opening surface 31.

  The cross-sectional shape orthogonal to the opening surface of the container opening 31 of the dust collecting container 30 may be a substantially square shape, a substantially circular shape, or a substantially triangular shape. That is, it is preferable that the cross-sectional shape of the dust collecting container 30 decreases from the opening surface 31 toward the bottom surface. As a result, the cross-sectional area increases toward the side from which the dust is discharged, so that the user can easily discharge the dust accumulated in the dust container 30.

  The entire shape of the dust collecting container 30 is formed by a frame body (branch) because it is necessary for air containing dust to pass through the dust collecting container 30. A mesh member 32 made of metal, nylon, polyester, or the like is spanned between the frame (support) between the bottom surface and the left and right side surfaces, which are the opposing surfaces of the container opening 31 of the dust collecting container 30. Is held on the frame (support frame) by covering or insert molding. The mesh member 32 laid over each frame (support frame) is breathable and has a filter function for collecting dust.

  By providing air permeability not only on the bottom surface portion of the opening surface 31 of the dust collecting container 30 but also on the left and right side surfaces, a flow path can be secured even if dust accumulates on the bottom surface of the dust collecting container 30. It is possible to reduce the pressure loss of the air flow passing through the dust container 30 and suppress the reduction of the intake air volume.

  Further, disposable tissue paper may be used instead of the mesh member 32 laid over each frame (support frame), or the mesh member 32 and tissue paper may be combined. For example, tissue paper may be mounted on the mesh member 32.

  As described above, the dust container 30 is divided into two parts in the vertical direction with the dust collector 10 placed on the cleaner body 1. That is, it consists of the upper half of the first container piece 30A and the lower half of the second container piece 30B, each of which is composed of a frame body (support).

  The two divided dust collecting containers 30 are connected by a divided shaft (not shown) formed outside the bottom surface of the dust collecting container 30. Therefore, the dust container 30 is configured such that the container opening 31 of the dust container 30 is broken with the split axis of the bottom surface, which is the surface facing the container opening 31, as a fulcrum. Note that the dust container 30 is basically included in the concept of the present invention even if it is configured to be cracked in the lateral direction in addition to the crack in the direction shown in the embodiment.

  However, in this embodiment, the first container piece 30A and the second container piece 30B are vertically split when a part of the dust container 30 jumps out of the opening 20A of the dust container container 35. . Accordingly, since the second container piece 30B is inclined further in the direction of gravity, the user can more easily discharge the dust accumulated in the dust container 30 and the dust adhered to the inner surface of the dust container 30. Can be easily peeled off.

  The open / close lid 24 opens and closes the opening 20A provided in the side surface 20 of the dust collection chamber 22 as described above, and further contributes to the construction of the dust container storage unit 35. For this reason, the backflow prevention valve 50 and the channel | path part 60 which has an arc-shaped wall surface are provided. Details of the opening / closing lid 24 will be described later with reference to FIG.

  FIG. 5 shows a state in which the filter holding lid 13A provided in the opening 20D of the rectangular filter storage portion 20B is opened. Light dust that has passed through the through-hole 81 of the dust separation inner cylinder 80 and fine dust that has passed through the mesh member 32 of the dust collection container 30 or tissue paper cannot be separated by the centrifugal separation action of the dust separator 21 shown in FIG. Is collected by the dust filter 13. The air that has passed through the dust collection filter 13 is sucked into the electric blower 14.

  The filter holding lid 13A has a shaft 46 at the lower end, and the shaft 46 is supported by a hinge 42 provided at the lower end of the filter storage portion 20B of the dust collecting chamber so as to be opened and closed. In this filter holding lid 13A, a dust collecting filter 13 folded in a pleat shape (mountain fold) is accommodated in a frame having a substantially square cross section in order to increase the ventilation area.

  The fold line direction of the mountain fold of the dust collection filter 13 is preferably the vertical direction (gravity acting direction). This is because when a dust removing mechanism that gives an impact to the dust collecting filter 13 is provided on the downstream side of the dust collecting filter 13, the fine dust adhered to the dust collecting filter 13 is dropped downward when the folding direction is the vertical direction. It is because it is easy to remove. In addition, the fold line direction of the mountain fold may be arranged obliquely.

  The vacuum cleaner according to the present embodiment is aimed at reducing the size and weight, and in this embodiment, an exhaust purification function that leads to an increase in the weight of the main body is omitted, but in order to further clean the exhaust, the electric blower 14 A high density filter may be provided downstream. At this time, a duct 15 that connects the dust container 35 and the electric blower 14, a case 16 that covers the electric blower 14, and a connection portion between the case 16 and the high-density filter so as to suppress the air leakage that is taken in and exhaust the high-density filter. It is important to adopt a configuration that maintains sufficient airtightness.

  Next, the further detailed structure of the dust collector 10 which combined the dust chamber 22 and the cyclone separation part 21 shown in FIG. 4 thru | or FIG. 5 is demonstrated based on FIG.

  FIG. 6 shows a configuration in which the approximate center of the cyclone type dust collector 10 is cut. In FIG. 6, reference numeral 21 denotes a dust separation unit that separates dust and air by centrifugal force generated by swirling air containing dust, and a dust collection chamber 22 for storing the separated dust is placed on the upper side. Has been. As described above, the dust collection chamber 22 and the cyclone separation unit 21 can be separated, and dust accumulated in the dust collecting container 30 by removing the dust collection unit 22 can be discarded.

  In the cyclone separation chamber 21A of the cyclone separation section 21, a dust separation inner cylinder 80 having a plurality of through holes 81 on a cylindrical side surface is disposed, and air from which dust has been separated in the cyclone separation chamber 21A, or Air containing fine dust passes through the through-hole 81 of the dust separation inner cylinder 80, passes through the internal passage 90 of the dust separation inner cylinder 80, and flows into the dust container storage unit 35.

  This dust container storage part 35 has two functions, one is for storing the dust container 30 and forming a dust collection space for collecting dust on one side, and one is for trapping. The dust separating inner cylinder 80 and the space through which the air that has passed through the dust collecting container 30 and the filter housing portion 20 </ b> B are formed on the other side of the dust container 30 and sent to the dust collecting filter 13.

  Dust is separated in the cyclone separation chamber 21A, and the air containing the dust drifts to the outer peripheral side of the cyclone separation chamber 21A, and is composed of a separation chamber side communication passage forming portion 70a and a dust collection chamber side communication passage forming portion 70b. It flows into the dust collection chamber 22 through the communication passage forming portion 70. The dust collection chamber side communication passage forming portion 70b is provided with a check valve 50 that prevents dust from flowing back to the cyclone separation chamber 21A in a state where the vacuum cleaner body 1 stops suction.

  As shown in FIG. 6, the opening / closing lid 24 is provided with a part of the communication path forming part 70 that connects the cyclone separating part 21 and the dust collecting chamber 22. In other words, the communication passage forming unit 70 includes a separation chamber side communication passage forming portion 70a (specifically, a pipe) on the cyclone separation portion 21 side and a dust collection chamber side communication passage forming portion 70b (specifically, on the dust collection chamber 22 side). The dust collection chamber side communication passage forming portion 70b and the separation chamber side communication passage forming portion 70a and the dust collection chamber side communication passage forming portion 70b are provided in the open / close lid 24. And when the cyclone separation part 21 and the dust collection chamber 22 are combined, the separation chamber side communication path forming part 70a and the dust collection chamber side communication path forming part 70b are connected to connect the cyclone separation part 21 and the dust collection chamber 22. Yes. A sealing surface is provided at the joint between the two to ensure airtightness (not shown).

  The traveling direction of the communication path forming part 70 constituted by the separation chamber side communication path forming part 70 a and the dust collection chamber side communication path forming part 70 b is substantially parallel to the container opening 31 of the dust collecting container 30. . In other words, the opening direction of the container opening 30 and the traveling direction of the communication path forming portion 70 are substantially orthogonal to each other.

  Since the inner peripheral side of the open / close lid 24 has an arcuate surface 60, the flow of air flowing out from the outlet 71 of the communication path forming unit 70 flows along the arcuate surface 60 in the container opening of the dust container 30. The direction is changed to the side of 31 so as to flow. This arcuate surface 60 is provided to rectify the air flow, and in addition to this, the cross section may have a trapezoidal shape or a triangular shape. That is, it is only necessary that the cross-section expands in the direction from the outlet 71 of the communication path forming unit 70 to the container opening 31 of the dust collecting container 30. In this way, the air flow smoothly changes from the outlet 71 of the communication path forming unit 70 to the container opening 31 of the dust collecting container 30.

  Further, an air flow deflecting unit 61 is provided on the inner peripheral side of the opening / closing lid 24 on the surface facing the outlet 71 of the communication path forming unit 70, and the air flow ejected from the outlet 71 is transferred to the air flow deflecting unit 61. The direction is changed so as to flow toward the container opening 31 side of the dust container 30.

  The dust collection chamber side communication path forming portion 70b and the air flow deflecting portion 61 are fixedly attached to the inner peripheral surface side of the opening / closing lid 24, and move together with the opening / closing lid 24 when the opening / closing lid 24 is opened. . For this reason, the opening 20A (opening of the dust collecting container storage unit 35) is in a largely open state, and dust can be easily discharged. In addition, since the dust collection chamber side communication path forming portion 70b and the air flow deflecting portion 61 can be attached to the open / close lid 24, an effect that the both can be easily aligned can be expected.

  Here, as shown in FIG. 6, the shape of the outlet 71 of the dust collection chamber side communication passage forming portion 70 b and the shape of the air flow deflecting portion 61 extend toward the periphery of the container opening 31 of the dust collecting container 30. In the drawing, it has a trapezoidal shape. As described above, the outlet 71 of the dust collection chamber side communication passage forming portion 70b and the air flow deflecting portion 61 extend toward the peripheral edge of the container opening 31 of the dust collecting container 30 so that the air flow can be smoothly performed. It can flow through the opening 31.

  Further, when the opening surface of the outlet 71 is formed so as to be inclined toward the container opening 31 as in the present embodiment, compared to the case where the opening surface of the outlet 71 is formed so as to be orthogonal to the air flow direction. Since the opening cross-sectional area can be increased, the fixing portion of the check valve 50 can be sufficiently secured. Moreover, it is good to provide the fixing | fixed part of the non-return valve 50 provided in the opening-and-closing lid 24 in the side in which the dust collecting container 30 exists. This is effective in that fine dust having a mass such as sand does not fall into the dust separator 21 when the operation is finished.

  In the above, air containing dust by the communication path forming part 70, the arcuate surface 60 provided in the opening / closing lid 24, the air flow deflecting part 61, etc., the dust collecting container 30 and the opening / closing lid as shown by the arrows 101 and 102. Thus, the flow swirls in the dust collection space formed by the dust 24, and dust accumulates from the bottom surface of the dust collection container 30.

  That is, since a swirl flow is generated in the air in the dust collection space formed by the arc-shaped surface 60 and the dust collecting container 30, the communication path forming unit 70 and the opening / closing lid 24 even if dust is sucked into the dust collecting container 30. The arc-shaped surface 60, the air flow deflecting unit 61, and the container opening 31 side of the dust collecting container 30 are difficult to collect dust, and the reduction of the air flow passage area is suppressed, and the suction of the electric blower 14 is suppressed. The effect which can suppress the fall of force, ie, suction | attraction air volume, can be anticipated.

  When the dust container 30 is filled with dust, the dust starts to accumulate toward the opening / closing lid 24 side, and gradually starts from the vicinity of the air flow deflector 61 side, which is the surface facing the outlet 71 of the opening / closing lid 24. To deposit. The reason for this is that air flows at high speed in the vicinity of the outlet 71, so that the surrounding dust is carried by the air flow and collides with the air flow deflecting unit 61 to reduce the speed. It is because it is captured by.

  Furthermore, since there are some users who check the amount of accumulated dust and throw out the dust, the observation window 40 formed of a transparent synthetic resin or the like is provided on the front surface of the opening / closing lid 24, so that the dust collecting container 30 is provided. The accumulated dust can be confirmed.

  The dust disposal time varies depending on the user, but it is preferable that the dust be discarded from the observation window 40 of the opening / closing lid 24 until the dust window 40 is filled up. This is because if the suction of the dust continues even if the dust fills the viewing window 40, the communication path forming portion 70 may be clogged with dust and the suction force may be greatly reduced. It is better to discharge as soon as you can see. In other words, the dust disposal time may be explained in an instruction manual or the like so as to urge discharge when dust begins to appear in the viewing window 40. In addition, as a guideline of the dust disposal time, a dust disposal line may be displayed by printing or the like near a predetermined portion of the observation window 40, for example, near the center. When the dust accumulates up to this waste disposal line, the time for disposal of the dust is determined. It is possible to make the user recognize that it has come. The observation window 40 is provided as large as possible with respect to the size of the opening / closing lid 24, so that it becomes easier to check the dust.

  Further, as described above, the cross section of the arcuate surface 60 provided in the opening / closing lid 24 changes in a direction in which the cross section expands from the outlet 71 of the communication path forming unit 70 to the container opening 31 of the dust collecting container 30. doing. Therefore, even if dust accumulates to the side close to the communication path forming part 70 of the arcuate surface 60 provided on the opening / closing lid 24, it is possible to open the opening / closing lid 24 and easily discharge the dust by the user's hand. .

  Next, the flow of air during suction by the electric blower 14 will be described using the arrows shown in FIG. Air containing dust due to the suction force generated by the electric blower 14 passes through the suction body 7, the extension pipe 6, and the hose 2 and flows into the dust collector 10 of the cleaner body 1.

  The air containing the dust flowing in swirls the inside of the cyclone separating portion 21 as indicated by an arrow 100 by the inflow port 23 opened so as to have a swirling component along the inner peripheral surface of the cyclone separating portion 21.

  When air and dust are separated by the centrifugal separation action by this turning, the outer peripheral air contains a lot of dust and conversely, the inner peripheral air becomes less dust due to the centrifugal separation action. Then, the air containing a lot of dust after centrifugation flows as indicated by an arrow 101, passes through the communication path forming part 70, and flows into the dust collection space formed by the opening / closing lid 24 and the dust collecting container 30. .

  Next, as shown by an arrow 101, the air containing a large amount of dust changes its direction in the direction in which the container opening 31 of the dust collecting container 30 is located by the action of the opening / closing lid 24 and the air flow deflecting unit 61, and captures the air. Deposits from the bottom of the dust container 30.

  Further, the air swirls along the shape of the dust collecting container 30 as indicated by the arrow 101, and when the dust collecting container 30 is full, the dust is then an air flow deflecting portion which is the opposite surface of the outlet 71 of the opening / closing lid 24. It gradually accumulates from around 61 side.

  The air in the dust collection space passes through the mesh member 32 of the dust collection container 30 and reaches the dust collection filter 13 as indicated by an arrow 103.

  On the other hand, air having a small amount of dust after centrifugation, which has been dust-removed in the cyclone separation chamber 21 </ b> A by the centrifugal separation action, passes through a plurality of through holes 81 provided in the dust separation inner cylinder 80 as indicated by an arrow 104. Through 80 internal passages 90, the air flows into the filter housing portion 20 </ b> B, which is a space between the dust collection filter 13 and the dust collection vessel 30, formed in the dust collection chamber housing portion 35, and reaches the dust collection filter 13.

  The air flow indicated by the arrow 104 does not pass through the dust collecting container 30, so even if the dust flow accumulates and the air flow flowing through the communication path forming unit 70 is gradually blocked, the air removed by centrifugation is removed. Therefore, the suction force can be maintained.

  The through hole 81 of the dust separation inner cylinder 80 is a mesh member made of metal, nylon, polyester, or the like, which may be attached by coating or insert molding. This has the effect of facilitating the formation.

  In addition, in order to suppress the growth of bacteria, it may be composed of an antibacterial metal (for example, silver) or an antibacterial substance (for example, silver) or a coated metal (for example, stainless steel). is there.

  As described above, according to the present embodiment, the opening provided on the side surface of the dust collection chamber is opened and closed, and the dust collection container is in contact with the inner peripheral surface of the opening / closing lid that conveys dust into the dust collection container. By directing the container opening to be substantially parallel to the inner peripheral surface of the opening / closing lid, the area of the container opening of the dust collecting container can be increased, and dust can be easily discharged.

  In addition, the cross section of the open / close lid perpendicular to the flow of air flowing through the open / close lid has a trapezoidal, triangular, or arcuate shape that expands toward the container opening of the dust collecting container, thereby capturing air. Since a flow swirling inside the dust container is generated and dust is accumulated while being compressed in the dust container, a large amount of dust can be accumulated in the dust container.

  In this embodiment, the opening / closing lid is formed in an arc shape. However, by making the arc shape, the gap between the negative pressure inside the opening / closing lid generated by the electric blower and the atmospheric pressure outside the opening / closing lid. It has become stronger against the force that occurs.

  Further, if a part or all of the opening / closing lid is made of a transparent material, there is an effect that the accumulated dust can be easily seen.

  In the present embodiment, the first container piece and the second container piece are vertically split when a part of the dust container protrudes from the opening of the dust container container. As a result, the second container piece is inclined further in the direction of gravity, so that the user can more easily discharge the dust accumulated in the dust container 30, and the dust adhering to the inner surface of the dust container 30 can also be removed. It can be easily peeled off.

  Next, a second embodiment of the present invention will be described in detail with reference to the drawings. Since the cleaner body has basically the same configuration as that of the first embodiment, a dust collector will be described below.

  FIG. 7 shows an external appearance of the dust collector 110 in the second embodiment, and FIG. 8 shows a configuration in which the dust collector 110 is cut at a substantially central position. This embodiment is characterized in that the cyclone separator and the dust collection chamber are integrated. Accordingly, the approximate configuration is the same as that of the first embodiment.

  In FIG.7 and FIG.8, it is comprised from the cyclone isolation | separation part 21 and the dust collection chamber 22, and these are comprised integrally. That is, both are comprised as the same housing | casing which consists of materials, such as the same plastics.

  The dust collector 110 is used for removing the dust collector 110 from the cleaner body 1 or carrying the dust collector 110 on the upper surface portion 125 (the upper surface when the dust collector 110 is placed on the cleaner body). A handle for releasing the lock clamp for locking the open / close lid 112 in a closed state is provided.

  In addition, an air inlet 114 containing dust is provided on the lower surface portion 126 of the dust collector 110 (the surface that is on the lower side when placed on the cleaner body). The inlet 114 is connected to the hose attachment port 12. These configurations are substantially the same as those in the first embodiment.

  An opening 127 for discharging dust is provided in a part of the cylindrical side surface portion 111 constituting the dust collection chamber 22 existing between the upper surface portion 125 and the lower surface portion 126 of the dust collector 110. The opening 127 is configured to be sealed and opened by the opening / closing lid 112.

  The side surface portion 111 is formed so as to be orthogonal to the surfaces of the upper surface portion 125 and the lower surface portion 126, and the opening / closing lid 112 is rotatably supported by the hinge mechanism 113 on the end surface 112 A on the lower surface portion 126 side, The opening / closing lid 112 is opened and closed with the hinge mechanism 113 as a fulcrum.

  As described above, when the dust collector 110 is tilted when dust is discharged from the dust collector 110 by rotatably supporting the open / close lid 112 on the end surface 112A on the lower surface portion 126 side, the open / close lid 112 is moved in the direction of gravity. Because it hangs down, dust can be easily discharged.

  The shape of the opening / closing lid 112 is formed in an arc shape along the cylindrical shape of the dust collector 110. This is because the hinge mechanism 113 is provided in the cyclone separating portion 21. That is, since the cyclone separating portion 21 has a cylindrical shape due to its function, the shape of the opening / closing lid 112 in this portion is formed in an arc shape, and further from the viewpoint of manufacturing, the entire shape of the opening / closing lid 112 is changed to this arc shape. Are combined. Thereby, the open / close lid 112 can be obtained without using a complicated mold. Further, by providing the hinge mechanism 113 in the cyclone separating portion 21, a large opening 127 can be formed in the side surface portion 111.

  Further, the area of the circumferential opening 127 formed in the side surface 113 is determined by the dust collection capacity of the dust. When the length of the dust collection chamber 22 is constant, dust collection is performed. When the capacity is increased, the width of the opening 127 in the circumferential direction is reduced, and dust may not be discharged smoothly, so that the optimum area of the opening can be determined. In this embodiment, the opening 127 is formed up to the maximum diameter portion (= diameter) of the dust collecting chamber in order to increase the opening area.

  Here, when the circumferential width of the opening 127 is increased, the dust collection capacity is limited. However, the dust collection container 30 accommodated in the dust collection container storage unit 128 that constitutes the dust collection chamber 22 may be used. It is possible to increase the dust collection capacity by increasing the depth.

  Further, a rectangular parallelepiped filter storage portion 129 is formed on the side surface opposite to the opening 127 and the opening / closing lid 112, and the filter storage portion 129 is provided with an air outflow opening connected to the electric blower 14.

  An inflow port 114 is provided in the lid 115 on the lower surface of the dust collector 110, and the lid 115 can be rotated by a hinge mechanism 116 and can be rotated by a side surface of the cyclone separating unit 21. It is supported. Therefore, on the opposite side of the hinge mechanism 116, the lid body 115 is fixed to the cyclone separating portion 21 with the locking claw 117. Therefore, when the inside of the cyclone separating portion 21 becomes dirty, the inside can be easily cleaned by opening the lid 115.

  Next, the further detailed structure of the dust collector 10 which combined the dust collection chamber 22 and the cyclone separation part 21 shown in FIG. 7 is demonstrated based on FIG.

  In FIG. 8, reference numeral 21 denotes a cyclone separation unit that separates dust and air by centrifugal force generated by swirling intake air, and a dust collection chamber 22 for collecting separated dust is disposed adjacent to the upper side. Yes. The cyclone separator 21 and the dust collection chamber 22 are integrally configured so as not to be separated.

  A cylindrical dust separation inner cylinder 80 attached to a separation wall 131 that forms the cyclone separation chamber 130 is provided near the center of the cyclone separation chamber 130 that constitutes the cyclone separation section 21. A plurality of through holes 81 are provided on the cylindrical side surface of the inner cylinder 80. The configuration and operation of this part are substantially the same as those in the first embodiment.

  The dust collection chamber 22 includes a dust collection container storage unit 35 for storing the dust collection container 30, and includes two chambers partitioned by the dust collection container 30. One is a dust collection space into which dust and air separated by the cyclone separation unit 21 flow, and the other is a filter housing portion 129 into which dust and air that have not been separated by the cyclone separation unit 501 flow. Further, the configuration of the dust collecting container 30 and the like perform the same configuration and operation as in the first embodiment.

  A communication path forming body 70 that connects the cyclone separation chamber 130 of the cyclone separation chamber 21 and the dust collection space formed in the dust collection chamber 22 is fixed to the inner peripheral surface of the opening / closing lid 112. Here, the air flow deflector is omitted from the inner peripheral surface of the opening / closing lid 112. As a result, the weight of the opening / closing lid 112 can be reduced.

  Further, in the present embodiment, a check valve 120 is provided on the downstream side of the inlet 114 of the lid 115 (the cyclone separation chamber side). The check valve 120 prevents dust from spilling from the cyclone separation chamber 130 in the dust collector 110 even if the dust collector 110 is removed from the cleaner body 1 when dust is discharged.

  In Example 1, the check valve 50 is provided on the downstream side (dust collection chamber side communication path forming part 70b) of the communication path forming part 70. However, by using this embodiment, The area of the inlet 14 can be made larger than the area of the check valve 50.

  This is because it is easier to make the opening downstream of the inlet 114 of the present embodiment larger than the outlet 71 of the first embodiment. Normally, the check valve leads to an increase in pressure loss. Therefore, the pressure loss can be reduced by providing the check valve in a portion having a large opening area. It should be noted that a check valve may be provided on the downstream side of the communication path forming portion 70 in order to suppress dust spillage to the dust separating portion as required.

  As described above, according to the present embodiment, the opening provided on the side surface of the dust collection chamber is opened and closed, and the dust collection container is in contact with the inner peripheral surface of the opening / closing lid that conveys dust into the dust collection container. By directing the container opening to be substantially parallel to the inner peripheral surface of the opening / closing lid, the area of the container opening of the dust collecting container can be increased, and dust can be easily discharged.

In addition, the cross section of the open / close lid perpendicular to the flow of air flowing through the open / close lid has a trapezoidal, triangular, or arcuate shape that expands toward the container opening of the dust collecting container, thereby capturing air. Since a flow swirling inside the dust container is generated and dust is accumulated while being compressed in the dust container, a large amount of dust can be accumulated in the dust container.
In the present embodiment, the shape of the open / close lid is formed in an arc shape. It has become stronger against the force that occurs.

  Further, if a part or all of the opening / closing lid is made of a transparent material, there is an effect that the accumulated dust can be easily seen.

  In the present embodiment, the first container piece and the second container piece are vertically split when a part of the dust container protrudes from the opening of the dust container container. As a result, the second container piece is inclined further in the direction of gravity, so that the user can more easily discharge the dust accumulated in the dust container 30, and the dust adhering to the inner surface of the dust container 30 can also be removed. It can be easily peeled off.

  By providing a backflow prevention valve at the inlet of the cyclone separation chamber, the pressure loss can be reduced by increasing the opening of this portion.

  DESCRIPTION OF SYMBOLS 1 ... Vacuum cleaner main body, 2 ... Suction hose, 3 ... Hand handle, 4 ... Operation part, 5, 26 ... Button, 6 ... Extension pipe, 7 ... Suction body, 10, 110 ... Dust collector, 12 ... Hose attachment port DESCRIPTION OF SYMBOLS 13 ... Dust collection filter, 14 ... Electric blower, 20, 111 ... Side part of dust collection chamber, 20A, 127 ... Opening part, 21 ... Cyclone separation part, 22 ... Dust collection chamber, 23, 114 ... Inlet, 24 112 ... Opening / closing lid, 25 ... Handle part, 27, 117 ... Claw, 28 ... Clamp, 30 ... Dust collecting container, 31 ... Container opening, 32 ... Mesh member, 40 ... Viewing window part, 41, 42, 113, 116 ... Hinge, 45, 46 ... Shaft, 50, 120 ... Check valve, 60 ... Arc-shaped surface, 70 ... Communication path forming part, 70a ... Separation chamber side communication path, 70b ... Dust collection chamber side communication path, 71 ... Outlet, 80 ... dust separation inner cylinder, 81 ... through hole, 115 ... lid.

Claims (5)

In a vacuum cleaner provided with a vacuum cleaner body equipped with an electric blower, and a dust collector detachably attached to the vacuum cleaner body,
The dust collecting device includes at least cyclone separation unit, this is a cyclonic separation unit provided separately, which is formed a dust trapping vessel container portion containing the dust trapping container provided inside Rutotomoni, from the side surface of the cylindrical and a dust collection chamber, the collection discharge opening for discharging Chiri挨a part of the side surface portion of the dust chamber, and opens and closes the discharge opening, arcuate opening along the cylindrical shape of the side surface portion A lid is provided, and the container opening of the dust container accommodated in the dust container container is installed so as to face the discharge opening,
The opening / closing lid forms a part of the dust collecting container accommodating portion, and the dust collecting container has a direction of air from the cyclone separating portion flowing along an arcuate surface on the inner peripheral side of the opening / closing lid. The vacuum cleaner, wherein the dust collecting container is accommodated in the dust collecting container accommodating portion so that the opening directions of the container opening portions are orthogonal to each other. The vacuum cleaner according to claim 1, wherein
The inner peripheral surface of the dust trapping container holder side the lid is characterized by airflow deflection unit for diverting the flow of air containing Chiri挨on the side of the dust trapping container is provided Electric vacuum cleaner. The vacuum cleaner according to claim 2,
Wherein the inner circumferential surface of the dust trapping container holder side of the lid, vacuum cleaner, characterized in that the communication passage forming portion for flowing the air containing dust挨from the cyclone separation unit is provided. The vacuum cleaner according to any one of claims 1 to 3,
The dust trapping vessel, vacuum cleaner, characterized in that projecting into the opening direction of the lid when opening the lid. The vacuum cleaner according to claim 4,
The vacuum cleaner is characterized in that when the opening / closing lid is opened, the dust collecting container is divided into two parts and opens in the direction of the upper surface and the lower surface of the dust collector.

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