JP2015066162A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner having improved durability of suction force.SOLUTION: The vacuum cleaner includes: a cleaner body having an electric blower; a dust storage part attachable/detachable with respect to the cleaner body, where the dust storage part is located at an upstream side of the electric blower when being attached to the cleaner body; and a dust collection filter. The dust storage part includes: a shield that is provided in the upstream side of a collection surface of the dust collection filter and protrudes in a direction substantially parallel to a dust filter frame body of the dust filter; and a dust collection space provided between the shield and the dust collection filter.

Description

  The present invention relates to a vacuum cleaner.

  The cyclone type electric vacuum cleaner includes a detachable dust accommodating portion that accommodates dust. In order to prevent dust from adhering to the dust collection filter, a dust adhesion prevention rib is provided between the pleat peaks on the upstream side of the dust collection filter, and dust adheres to the dust collection filter by continuing to float between the dust collection filters. The thing which made it hard to do is known (refer patent document 1).

JP 2010-273719 A

  However, in the vacuum cleaner described in Patent Document 1, when the amount of dust is small, the dust adhesion preventing ribs can prevent the dust from adhering to the dust collecting filter collecting surface. As the dust increases, the dust between the peaks of the dust collection filter continues to float, which may cause dust to adhere to the entire collection surface of the dust collection filter and reduce the suction force. There is. Moreover, in the vacuum cleaner of patent document 1, since dust always exists between the peaks of a dust collection filter by the dust adhesion prevention rib, the dust dropped by the dust removal is reattached during operation. There is a risk.

  This invention solves the said conventional subject, and it aims at providing the vacuum cleaner which improved the sustainability of the attraction | suction force.

  In order to solve the above-described conventional problems, the vacuum cleaner of the present invention has a vacuum cleaner body including an electric blower, and a dust container detachably attached to the vacuum cleaner body, and the dust container is In an electric vacuum cleaner that is located upstream of the electric blower and is provided with a dust collection filter when attached to the vacuum cleaner body, the dust container is located upstream of the collection surface of the dust collection filter. The dust collection filter has a shield projecting in a direction substantially parallel to the dust collection filter frame, and has a dust collection space between the shield and the dust collection filter.

  According to the present invention, the shielding object and the space between the shielding object and the dust collecting filter can suppress the adhesion of dust to the entire collection surface of the dust collecting filter and the reattachment of operating characters, It is possible to provide a vacuum cleaner with improved power durability.

Furthermore, when the shielding object is positioned below the dust collection filter, the dust that has been removed remains in the dust collection space during the next operation, and is further prevented from reattaching to the front face of the opening of the intake duct. Therefore, it is possible to provide an electric vacuum cleaner with improved suction power durability.

It is an appearance perspective view showing the whole vacuum cleaner concerning one embodiment of the present invention. It is a front view which shows the cyclone dust collector which concerns on one Embodiment of this invention. It is a disassembled perspective view which shows the cyclone dust collector of FIG. It is a top view which shows the cyclone dust collector of FIG. It is a perspective view which shows the dust accommodating part when a cover part is open | released in the cyclone dust collector which concerns on one Embodiment of this invention. It is sectional drawing when the cyclone dust collector of the vacuum cleaner which concerns on one Embodiment of this invention is mounted | worn with the vacuum cleaner main body. It is sectional drawing of the dust accommodating part in the cyclone dust collector which concerns on one Embodiment of this invention. (A) It is sectional drawing in the state where the check valve curved in the dust accommodating part which concerns on another embodiment of this invention. (B) It is sectional drawing of the upper body from which the check valve is not curving from (a). It is the perspective view which looked at the dust collection filter from the downstream.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an external perspective view showing the entire vacuum cleaner 100 according to one embodiment of the present invention.

  The vacuum cleaner 100 includes a vacuum cleaner body 1, a suction hose 2, a hand handle 3, a hand operation unit 4, an extension pipe 6, a suction body 7, a cyclone dust collector 10, a wheel 11 that can freely move the vacuum cleaner body 1, and the like. It has.

  Here, in describing the embodiment of the present invention, the direction from the cleaner body 1 to the mouthpiece 7 is defined as the front, and front, rear, left and right are indicated by arrows in the figure.

  The vacuum cleaner main body 1 includes a hose attachment port 12 to which the suction hose 2 is attached, an electric blower 80 that generates suction force, and the like. In addition, although not shown in figure, the cord reel for supplying electric power is provided inside the main body case which makes the outline of the cleaner body 1.

  When the power button of the operation buttons 5 provided on the hand operation unit 4 is turned on by the user, the electric blower 80 is activated to generate a suction force. The air sucked from the mouthpiece 7 and the dust sucked together with the air are guided in the order of the extension pipe 6, the suction hose 2, and the cleaner body 1.

  FIG. 2 is a front view showing the cyclone dust collecting apparatus 10.

  The cyclone dust collecting apparatus 10 includes a dust separation unit 20 and a dust storage unit 30, and is configured to be divided into a dust separation unit 20 and a dust storage unit 30 as shown in FIG. The dust container 30 is located above the dust separator 20.

  The dust container 30 includes a dust collection case 40, a lid 50 attached to the dust collection case 40 so as to be openable and closable, a handle 61 having a hand-grip portion, and a release button for opening the lid 50. 62. In FIG. 2, the cyclone dust collector 10 is illustrated in a state in which the cyclone dust collector 10 is erected in the vertical direction. However, in the actual use state, as shown in FIG. 1, the cyclone dust collector 10 is lower than the upper side. The vacuum cleaner body 1 is mounted in an inclined state so as to be positioned in front of the cleaner body 1.

  FIG. 3 is an exploded perspective view showing the cyclone dust collecting apparatus 10.

  The dust separation unit 20 of the cyclone dust collecting apparatus 10 has an outer cylinder 21 having a substantially cylindrical shape, and an inlet pipe connected to a hose attachment port 12 (see FIG. 1) on the lower surface in the axial direction of the outer cylinder 21. 22 is formed.

  In addition, a circular opening 27 is formed substantially at the center of the upper surface 20a of the dust separation part 20, and a sealing member 27s having a cylindrical shape and increasing in diameter upward is provided at an edge of the opening 27.

  Further, on the upper surface 20 a, a wide communication path 26 is opened in front of the opening 27, and a cylindrical seal member 26 s is provided at an edge of the communication path 26. The opening 27 and the communication path 26 communicate with the inlet pipe 22.

  The dust container 30 of the cyclone dust collector 10 has a substantially cylindrical shape, and a lid 50 is provided in front of the dust collection case 40. Further, the dust container 30 includes an upper cover 60 including a handle 61 and a release button 62 on the dust collection case 40 and the lid 50. The peripheral surface of the upper cover 60 has a flat shape along the left side surface 40c (see FIG. 2), the right side surface 40d and the outer surface of the lid 50 of the dust collecting case 40, and the front side is lower than the rear side in the front-rear direction. It is inclined to.

  FIG. 4 is a plan view showing the dust container 30 of the cyclone dust collector 10.

  The upper cover 60 of the dust container 30 is provided with a substantially rectangular handle 61 in plan view, and a release button 62 is provided in front of the handle 61. The handle 61 has a front plate portion 61a on which a user's hand (finger) is placed, and a release button 62 is provided near the front of the front plate portion 61a. When the release button 62 is pushed down, the lid 50 (see FIG. 3) opens.

  In this manner, by providing the release button 62 for releasing the lock of the lid 50 near the front of the handle 61, the finger is placed on the front plate portion (the handle portion) 61a of the handle 61 with the palm up from the rear. The release button 62 can be pressed with, for example, the thumb, and the handling of the dust container 30 can be improved, regardless of whether the finger is inserted with the back of the hand facing upward from the front. .

  FIG. 5 is a perspective view showing the dust container when the lid is opened.

  The dust collection case 40 has an opening 40 s having a substantially rectangular shape at the front. Note that the surface including the opening formed by the opening 40s corresponds to the opening surface M1. Incidentally, if the dust collecting case 40 is the opening surface M1 parallel to the axial direction of the dust collecting case 40, the vacuum cleaner 100 is made to be an opening surface cut in a direction orthogonal to the axial direction of the dust collecting case 40. This is because when the dust container 30 is downsized in order to reduce the size, it is impossible to secure a large opening area of the opening surface.

  The dust collection case 40 includes a dust collection basket 41 and a dust collection filter 70 (see FIG. 6).

  The dust collecting basket 41 has a substantially trapezoidal shape in a cross-sectional view (side view), and an upper container (support frame) 41a and a lower container (support frame) 41b which are divided into upper and lower parts are hinges 41c at the rear (see FIG. 6). When the trash is thrown away, the upper container 41a and the lower container 41b are opened in the vertical direction by a hinge 41c (see FIG. 6), and the shaft 41d (only one shown) is provided at the lower end of the lower container 41b. As a rotation. The shaft 41d is rotatably supported on the inner wall surfaces of the left and right side surfaces 40c, 40d (see FIG. 2) of the dust collection case 40. In addition, the dust collecting basket 41 should just have a concave surface facing the opening part 40s side, and a shape other than that is not specifically limited.

  The cross-sectional shape of the dust collecting basket 41 in the front-rear direction may be a substantially square shape, a substantially circular shape, or a substantially triangular shape. Preferably, it is formed so that a cross section becomes smaller from the opening side (front side) toward the bottom side (rear side). By forming in this way, the cross-sectional area increases toward the side (opening side) where the dust is discharged, so that the user can easily discharge the dust accumulated in the dust collecting basket 41.

  The dust collecting basket 41 has a frame body 41e (support frame), and a mesh member 41f (partially shown) made of metal, nylon, or the like is covered and pasted on the bottom surface, upper, lower, left and right surfaces excluding the opening. It is configured by wearing or insert molding. Thus, by providing air permeability not only on the bottom surface of the dust collecting basket 41 but also on the top, bottom, left and right surfaces, a flow path can be secured even if dust accumulates on the bottom surface of the dust collecting basket 41. Thereby, the pressure loss of suction | inhalation air can be reduced and the fall of a suction force can be suppressed.

  The lid 50 opens and closes the opening 40s (opening surface M1) on the front side of the dust collecting case 40, and is formed in the lid 50 so that the concave surfaces face each other with respect to the dust collecting basket 41. A recess 52 is formed. The opening area of the opening 52 a of the recess 52 is formed to be substantially the same as the opening area of the dust collecting basket 41.

  A flat check valve A53 made of an elastic material is provided on the inclined surface (bottom surface) 52a1 of the recess 52.

  Further, the lower part of the lid part 50 is rotatably connected to the lower part of the dust collecting case 40 via a hinge part 54. Thereby, the cover part 50 is comprised so that it may rotate below with respect to the opening surface M1 of the dust collection case 40 in the direction away from the opening surface M1.

  FIG. 6 is a longitudinal sectional view when the cyclone dust collecting device 10 is attached to the cleaner body 1.

  As shown in FIG. 6, the cyclone dust collecting device 10 is mounted on the front portion of the cleaner body 1 such that the upper portion is in a rearward inclined posture located rearward of the lower portion. The cyclone dust collector 10 is arranged so that its axial direction is inclined with respect to the vertical direction. Thereby, the vacuum cleaner main body 1 including the cyclone dust collector 10 can be reduced in size compared to the case where the cyclone dust collector 10 is configured with the axial direction set to the vertical direction. Further, the dust container 30 of the cyclone dust collector 10 has a back surface supported by the cleaner body 1 and a bottom surface supported by the dust separator 20. That is, a member that supports the dust container 30 from the front to the outer peripheral surface of the side surface is not provided.

  The dust collecting case 40 is formed in a substantially rectangular tube shape having an upper surface 40a, a bottom surface 40b, a left side surface 40c (see FIG. 2) and a right side surface 40d (see FIG. 3), and has a front side (front side) and a rear side (rear side). ) Have openings 40s and 40f that open respectively.

  The dust collecting basket 41 is rotatably connected to a support portion 42 provided at the front portion on the bottom side of the dust collecting case 40. The support portion 42 is provided with a torsion coil spring 42a (see FIG. 6), and is configured such that the dust collection basket 41 jumps out to the front of the dust collection case 40 by the urging force of the torsion coil spring 42a (see FIG. 6). (See FIG. 5). At this time, the dust collected in the dust collecting basket 41 can be discharged into, for example, a trash box by the momentum of the dust collecting basket 41 jumping out from the dust collecting case 40.

  The mesh member 41f is air permeable and has a filter function of collecting dust. In addition, as long as it has a filter function which collects dust, a disposable tissue paper may be used instead of the mesh member 41f, or the mesh member 41f and the tissue paper may be combined. By using tissue paper on the mesh member 41f, it is easy to dispose of the dust in the dust collecting basket 41.

  As shown in FIG. 6, the lid 50 is formed with a communication path 51 that is connected to the recess 52 and extends downward. The communication path 51 extends toward the lower dust separator 20 and is connected to an opening 50a1 formed in the bottom surface 50a. The communication path 51 extends substantially in parallel to the opening 40s (opening surface M1) of the dust collecting case 40. However, the air flow is directed to the opening M1 by the recess 52 provided in the lid 50. It can be turned to. The recess 52 is provided to rectify the flow. The recess 52 may have a trapezoidal cross section as shown in the figure, or the upper portion of the recess 52 can be rectified by making an arc shape in cross section. That is, the recess 52 has a cross-sectional shape that expands toward the opening surface M1 of the dust collecting basket 41.

  Thus, the opening surface M1 of the dust collecting case 40 is configured to be substantially parallel to the dust introduction direction (dust introduction direction) of the communication path 51.

  The check valve A53 is provided on the surface of the recess 52 where the communication path 51 is connected, and allows only the flow from the communication path 51 side to the recess 52 side. Incidentally, the check valve A53 is attached to an inclined surface 52a1 that is a surface (lower surface) communicating with the communication path 51 of the recess 52. When the recess 52 is formed in a trapezoidal cross section in this way, the outlet of the communication path 51 is provided. The opening area of the outlet can be increased as compared with the case where the valve is leveled, and a fixing portion for fixing the check valve A53 to the recess 52 can be sufficiently secured.

  Moreover, it is good to provide the fixing | fixed part at the time of fixing check valve A53 in the dust collection basket 41 side. Thereby, when the operation of the vacuum cleaner 100 (see FIG. 1) is finished, it is possible to prevent heavy fine dust such as sand from falling on the dust separation unit 20.

  Further, a hook-like protrusion 56 that engages with the lock member 66 is formed on the upper surface 50 b of the lid 50.

  The front surface of the lid 50 is made of a transparent resin or the like so that dust accumulated in the dust collecting basket 41 can be confirmed with the lid 50 closed.

  The dust separator 20 has an outer cylinder 21 having a substantially cylindrical shape, and an inlet pipe 22 connected to the hose attachment port 12 (see FIG. 1) is formed on the lower surface of the outer cylinder 21 in the axial direction. ing.

  In the outer cylinder 21, an introduction part 23 that communicates with the inlet pipe 22, an inner cylinder 24 that communicates with the dust collection case 40 of the dust container 30, and the introduction part 23 and the inner cylinder 24 communicate with each other, and the hose attachment port 12. A turning circuit 25 is provided for turning air flowing into the cleaner main body 1 and dust sucked together with the air. The inner cylinder 24 has a plurality of through holes 24a. Further, on the outer peripheral side of the outer cylinder 21, a communication path 26 that connects the turning circuit 25 and the lid portion 50 (communication path 51) is formed.

  Note that a mesh member made of metal, nylon, polyester, or the like may be attached to the through hole 24a of the inner cylinder 24 by coating or insert molding. Moreover, you may make it comprise the metal (for example, stainless steel) which contains the metal (for example, silver) which has an antibacterial action, or the antibacterial substance (for example, silver), or was apply | coated so that propagation of a microbe can be suppressed.

  The introduction portion 23 has a concave shape and is disposed such that the concave surface faces the inlet pipe 22.

  Therefore, the air containing dust or the like introduced from the inlet pipe 22 collides with the bottom surface of the concave surface, then flows along the side surface of the concave surface, and flows into the turning circuit 25.

  The inner cylinder 24 is formed at the center in the radial direction of the outer cylinder 21 and is located on the back side of the introduction portion 23. Light dust passes through the through hole 24 a formed in the inner cylinder 24. The downstream end of the inner cylinder 24 communicates with an opening 40 t formed in the bottom surface 40 b of the dust collection case 40.

  The opening 40t is covered with a check valve B79 made of an elastic material. When the check valve B79 is bent by the suction force of the electric blower 80, the opening 40t is opened and closed, and the opening 40t is opened during the operation of the vacuum cleaner 100 (see FIG. 1). By closing 40t, only the flow from the dust separation unit 20 to the dust collecting case 40 is allowed, and heavy fine dust such as sand can be prevented from falling on the dust separation unit 20.

  The turning circuit 25 is formed outside the introduction portion 23 and the inner cylinder 24 and has a function of separating air and dust by centrifugal force.

  The communication path 26 is configured such that the upstream end communicates with the turning circuit 25 and the downstream end communicates with a communication path 51 formed in the lid portion 50. The cyclone dust collecting apparatus 10 is provided with seal members 26s, 51s, and 27s so as to ensure airtightness. That is, as shown in FIG. 6, the seal member 26s is a seal member (packing) for ensuring airtightness between the communication path 26 and the opening 50a1, and the seal member 51s includes the communication path 51 and the lid portion. 50 is a seal member (packing) for ensuring airtightness between the two, and the seal member 27s is a seal member (packing) for securing airtightness of the opening 40t. Further, the sealing member 26s is provided in order to ensure airtightness in the dust accommodating portion 30, and the sealing members 51s and 27s ensure airtightness between the dust separating portion 20 and the dust accommodating portion 30. Is provided to do.

  In the cyclone dust collecting apparatus 10 configured as described above, when the air that has flowed into the cleaner body 1 from the hose attachment port 12 and the dust sucked together with the air are introduced from the inlet pipe 22 into the introduction portion 23, the introduction is performed. It collides with the front wall surface in the section 23 and is introduced toward the turning circuit 25 to turn the turning circuit 25. Air and dust are separated by the centrifugal separation effect of this swirl. Due to the centrifugal separation action, a large amount of dust is contained in the air on the outer peripheral side, and conversely, the air on the inner peripheral side is reduced.

  As shown by solid line thick arrows in FIG. 6, the air containing a large amount of dust after centrifugation passes through the communication paths 26 and 51 in the opening direction of the dust collecting basket 41 along the shape of the recess 52 of the lid 50. The direction is changed and dust accumulates in the dust collecting basket 41. The air that has passed through the dust collection basket 41 is sucked into the electric blower 80.

  In addition, as shown by the thick broken line arrows in FIG. 6, the light dust that cannot be separated by the centrifugal separation action of the dust separation portion 20 and has passed through the through hole 24a of the inner cylinder 24 passes through the openings 27 and 40t. 40, and is collected by the dust collection filter 70. The air that has passed through the dust collection filter 70 is sucked into the electric blower 80. At this time, an air intake space 15 that extends over the entire surface of the dust collection filter 70 is provided between the dust collection filter 70 and the intake duct 81. Thereby, even if the front surface of the opening of the intake duct 81 communicating with the electric blower 80 is only at the upper part of the dust collection filter 70, suction force can be generated from the lower part of the dust collection filter 70. The maximum area can be utilized. Further, the intake space 15 may be configured inside the dust collection filter 70 on the downstream side of the pleat filter 71.

  Further, the dust collection case 40 is provided with a dust collection filter 70 that can be opened and closed (rotatable) about a hinge portion 72 (see FIG. 5). Note that the dust collection filter 70 is configured such that the rear surface of the dust collection filter 70 comes into contact with the intake duct 81 of the cleaner body 1 in a state where the dust collection filter 70 is attached to the opening 40 f of the dust collection case 40.

  The dust collection filter 70 is folded in a pleat shape, and for example, a high-density HEPA filter (High Efficiency Particulate Air Filter) can be used. The HEPA filter has a particle collection rate of 99.97% or more with respect to particles having a rated air volume and a particle size of 0.3 μm, and an initial pressure loss of 245 Pa or less.

  The fold line direction of the mountain fold of the dust collection filter 70 is preferably the vertical direction (gravity acting direction). This is a case where a dust removal mechanism for removing dust accumulated on the dust collection filter 70 by applying an impact to the dust collection filter 70 is provided downstream of the dust collection filter 70 (on the cleaner body 1 side). This is because, when the folding direction is the vertical direction, fine dust attached to the dust collection filter 70 is easily dropped and removed. In addition, the fold line direction of the mountain fold may be arranged obliquely.

  Further, a dust removal portion 76 (see FIG. 9) is provided at the apex of each pleat on the downstream side of the pleat filter 71 of the dust collection filter 70, and an impact from a dust removal mechanism 82 (not shown) is applied to the pleat filter 71. To tell.

  In the dust collection case 40, there is a shield 73 on the upstream side (front side) from the dust collection filter 70, and on the downstream side (rear side) of the shield 73 in the dust collection case 40, the shield 73 and dust collection. A dust collection space 78 formed with the filter 70 is provided. The shield 73 passes through the through hole 24a of the inner cylinder 24, obstructs the flow of air that has entered the dust collection case 40 through the openings 27 and 40t, and creates a spiral flow 90 as shown by an arrow in FIG. produce. Here, the spiral flow 90 can be created by forming the shield 73 in a convex shape with respect to the flow path. Due to this vortex flow 90, light dust that cannot be separated by the centrifugal separation action of the dust separation unit 20 and that has passed through the through hole 24 a of the inner cylinder 24 is guided to the dust collection space 78, and the dust sucks into the opening of the intake duct 81. The dust collecting space 78 can be prevented. Thereby, it is reduced that dust adheres to the front face of the opening portion of the intake duct 81 communicating with the electric blower 80. The sustainability of the suction force is reduced by reducing the opening area in front of the opening portion of the intake duct 81 due to the adhesion of dust. Therefore, by keeping the dust in the dust collection space 78, the opening area can be kept wide. And the durability of the suction force can be improved. Therefore, it is preferable that the dust collection space 78 is formed over the entire width of the dust collection case 40 in the left-right direction so as to collect more dust.

  Further, the shield 73 is not limited to the lower side of the dust collection filter 70 but may be provided on the upper side or the left and right side walls depending on the opening of the intake duct 81, but has adhered to the dust collection filter 70. Since dust can be guided to the dust collection space 78 by dropping downward from the dust collection filter 70 by the dust removal mechanism, it is preferably provided on the lower side.

  Moreover, although the shielding object 73 is formed in the substantially parallel direction with respect to the dust collection filter frame 77 (refer FIG. 9), it may have some angle. In particular, when the shielding object 73 is provided on the lower side, the shielding object 73 functions like a wedge by tilting the upper part of the shielding object 73 toward the dust collection filter (α is smaller than 90 degrees), and the dust collection space. The dust led to 78 can be prevented from jumping out of the dust collection space 78.

  When the upper part of the shield 73 provided on the lower side is inclined to the opposite side of the dust collection filter 70 from parallel to the dust collection filter frame 77 (α is greater than 90 degrees), the dust removal mechanism Thus, the dust dropped downward from the dust collection filter 70 can be more easily guided to the dust collection space 78. As a result, the dust dropped downward from the dust collection filter 70 can be collected in the dust collection space 78, and the adhesion of dust to the front surface of the opening of the intake duct 81 communicating with the electric blower 80 can be reduced.

  Further, in order to collect a large amount of light dust that has passed through the through hole 24 a of the inner cylinder 24 in the dust collection space 78, it is preferable that the shielding object 73 is enlarged. On the other hand, in order to maintain the suction force, it is preferable to keep the front surface of the opening of the intake duct 81 in a clean state as wide as possible. Therefore, if the shielding object 73 is provided in front of the opening of the intake duct 81, dust accumulated on the downstream side (rear side) of the shielding object 73 blocks the opening area. It is desirable that the opening is formed at a position that does not block the opening.

  In the present embodiment, the shield 73 is formed integrally with the dust collection case 40, but may be formed separately from the dust collection case 40 and combined.

  The material may be a general-purpose resin (for example, ABS), an elastic material (for example, rubber), a metal (for example, stainless steel), or a breathable material such as a nonwoven fabric. However, since a general-purpose resin or the like having no air permeability can surely cause the spiral flow 90, a greater effect can be obtained.

  In addition, when the operation is stopped, the shielding object 73 can block the dust to the dust collection filter 70 side and prevent the dust from falling from the opening 40t.

  Further, by opening the dust collection filter 70, it is possible to easily remove dust accumulated on the dust collection filter 70 side.

  In addition, as shown in FIG. 8, the fixing portion of the check valve B79 is provided on the dust collection filter 70 side, and the shield 73 is formed by the check valve B79 that can move according to the suction force generated by the electric blower 80. good. When formed as shown in FIG. 8, when the electric blower 80 is operating, the check valve B79 is curved toward the dust collecting filter as shown in FIG. And dust accumulates in the dust collection space 78 on the downstream side (rear side) of the check valve B79. Furthermore, when the dust removal operation is performed, since the operation of the electric blower 80 is stopped, the check valve B79 is in the state shown in FIG. 8B, and the dust that has fallen downward from the dust collection filter 70 is reliably collected. It can be deposited in the dust space 78.

  The shielding object 73 may be a separate part provided with a general-purpose resin (for example, ABS) that can move according to the suction force of the electric blower. However, as shown in this embodiment, the shielding object 73 is made of an elastic material. By constituting the check valve B79, the dust that has fallen from the dust collection filter by the dust removal operation can be reliably accumulated in the dust collection space 78 without increasing the number of parts and with a simple configuration.

  As described above, in the vacuum cleaner 100 according to the present embodiment, the dust container 30 includes the dust collection filter 70, and is approximately relative to the dust collection filter frame 77 upstream of the collection surface of the dust collection filter 70. A shield 73 protruding in the parallel direction is provided, and a dust collection space 78 is provided on the dust collection filter 70 side of the shield 73. According to this, light dust that cannot be separated by the centrifugal separation action of the dust separation unit 20 and has passed through the through hole 24a of the inner cylinder 24 is accumulated in the dust collection space 78 located on the dust collection filter 70 side from the shield 73. It is possible to reduce the adhesion of dust to the front surface of the opening portion of the intake duct 81 communicating with the electric blower 80 and improve the sustainability of the suction force.

Further, according to the present embodiment, when the dust removing mechanism 82 for removing the dust accumulated on the dust collection filter 70 by applying an impact to the dust collection filter 70 is provided on the downstream side of the dust container 30. The dust that has been removed by the dust removal mechanism 82 and dropped downward can be prevented from reattaching to the front face of the opening of the intake duct 81.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 10 Cyclone dust collector 20 Dust separation part 26 Communication path 30 Dust storage part 40 Dust collection case 41 Dust collection basket 50 Lid part 51 Communication path 52 Recessed part 53 Check valve A
60 Upper cover 61 Handle 62 Release button 70 Dust collection filter 71 Pleated filter 73 Shielding object 76 Dust removal part 77 Dust collection filter frame 78 Dust collection space 79 Check valve B
80 Electric blower 81 Intake duct 82 Dust removal mechanism 90 Vortex flow 100 Vacuum cleaner M1 Opening surface

Claims (6)

A vacuum cleaner body including an electric blower, and a dust container detachably attached to the vacuum cleaner body, the dust container being positioned upstream of the electric blower when attached to the vacuum cleaner body And a vacuum cleaner equipped with a dust collecting filter,
The dust container has a shield projecting in a direction substantially parallel to the dust filter frame of the dust filter on the upstream side of the collection surface of the dust filter, and the shield and the dust collector An electric vacuum cleaner having a dust collection space between filters. The vacuum cleaner according to claim 1, wherein
The vacuum cleaner characterized in that the shield is formed over the entire width of the dust container. The vacuum cleaner according to claim 1 or 2,
The vacuum cleaner according to claim 1, wherein the shield is provided on a lower side of the dust container. The vacuum cleaner according to claim 3,
The vacuum cleaner according to claim 1, wherein an upper portion of the shield is inclined toward the dust collection filter.
The vacuum cleaner according to claim 3,
The electric vacuum cleaner according to claim 1, wherein the shield is provided with an upper portion of the shield inclined to the side opposite to the dust collection filter.
The vacuum cleaner according to any one of claims 1 to 5,
The vacuum cleaner, wherein the shield is formed of a component that moves in accordance with the suction force of the electric blower.