JP2011152241A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a user's forgetting to set a filter unit, and to prevent, even if forgetting to set the filter unit, dust emission in a room and facilitate the mounting/demounting of the filter, in a cyclone vacuum cleaner. <P>SOLUTION: The vacuum cleaner includes: a cleaner body 1 having an electric blower 5 and a suction port 15; a nozzle 3; and a dust collector 4 being mountable/demountable relative to the cleaner body 1, wherein the dust collector 4 has a cyclone separation part 24, a dust collecting container 19, and a filter case 20 demountably mounted with a filter unit 21. The filter unit 21 has a lid body 51 detachable/attachable relative to an attachment hole 48 formed in the filter case 20, and a filter body 52 integrally provided with the lid body 51, wherein its primary side is communicating with a communicating cylinder 28 as an air outlet and the secondary side is communicating with the suction port 15 via an exhaust port 49. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cyclone type vacuum cleaner that rotates an intake air in a dust collector to centrifuge dust.

  Conventionally, in this vacuum cleaner, a vacuum cleaner body with an electric blower built in, a dust collection container detachably attached to the vacuum cleaner body, and a filter provided in the dust collection container in a removable manner The dust collected from the cyclone air flow in the dust collection container is collected in the dust collection container, and a small amount of fine dust remaining in the air flow is captured by the filter. The dust collected in the dust collecting container and the dust adhering to the filter are discarded by removing the filter from the dust collecting container after removing the dust collecting container from the vacuum cleaner body. Can be done.

  Therefore, when using again, use the vacuum cleaner again by setting the filter in the dust collection container and then setting the dust collection container in the vacuum cleaner body and then operating the electric blower. (For example, Patent Document 1).

JP 2009-279284 A

  In the prior art, the filter for capturing minute dust in the dust collecting container is set, but if this filter is forgotten to be set, a small amount of fine dust remaining in the airflow is The electric blower may be discharged into the room together with the suction air. Furthermore, when removing the dust by removing the filter, the dust collector must be removed from the main body of the vacuum cleaner, and the filter must be removed from the dust collector. There was also a problem that it was easy to get your hands dirty.

  The present invention solves the above-mentioned problems and makes it possible to prevent forgetting to set a filter unit for capturing a small amount of minute dust remaining without being centrifuged from a cyclone airflow in a cyclone type vacuum cleaner. It is. The present invention also makes it possible to reduce the possibility that dust will diffuse into the room even if the electric blower is operated in a state where the filter unit is forgotten. Furthermore, the present invention can easily attach and detach the filter unit.

  According to the first aspect of the present invention, a nozzle, a cleaner main body provided with an air inlet of the electric blower, and the air in the middle of an air path provided in the cleaner main body and formed between the nozzle and the electric blower. Cylindrical cyclone separator for rotating and centrifuging dust, a dust collecting container provided in the cyclone separator, a filter case communicating with the air outlet side of the cyclone separator in the air path, and the filter case A filter unit that is removably inserted into the filter case, and an exhaust port that is provided in the filter case and communicates with the intake port. The filter unit is removably provided in a mounting hole formed in the filter case. A lid is provided integrally with the lid so that the primary side can communicate with the air outlet side, and the secondary side can communicate with the exhaust port. A vacuum cleaner and having a girder filter body.

  In the invention of claim 2, the filter case has a cylindrical shape, the air outlet side is provided on one side of the axial center, the mounting hole is provided on the other side, and the filter case is provided on the peripheral surface of the filter case. An exhaust port is provided, and the filter main body has a cylindrical shape whose outer width is smaller than the inner width of the filter case with the axis as the center, the proximal end of which is connected to the lid body, and the distal end is connected to the air The electric vacuum cleaner according to claim 1, wherein the electric vacuum cleaner is provided so as to be able to contact the outlet side.

  The invention according to claim 3 is characterized in that the filter main body is supported by a cylindrical frame centering on the axis, and the frame is connected to the lid. It is a vacuum cleaner.

  According to the first aspect of the present invention, it is possible to remove only the filter unit from the filter case without removing the cyclone separating portion from the cleaner body, and to remove fine dust adhering to the filter of the filter unit. Moreover, since the attachment of the filter unit to the attachment hole of the filter case can be visually confirmed, the filter unit can be securely attached to the filter case. Also, even if the electric blower is operated without attaching the filter unit to the opening, outside air is sucked into the intake port of the cleaner body through the attachment hole and the exhaust port, Since the air is hardly sucked from the nozzle, the dust sucked from the nozzle can be prevented from diffusing into the atmosphere.

  According to the invention of claim 2, by making the outer width of the filter body smaller than the inner width of the filter case, a clearance is secured between the filter body and the filter case, and the filter body is cleaned through the clearance. Fresh air can be exhausted from the air outlet.

  According to the invention of claim 3, the filter body can be prevented from being deformed by the wind pressure, and the performance of the filter can be ensured.

It is a perspective view of the vacuum cleaner which shows Example 1 of this invention. It is the perspective view seen from another direction same as the above. It is the side view which notched a part same as the above. It is XX sectional drawing. It is the whole exploded perspective view same as the above. It is a perspective view of a dust collector in the state where a filter unit was removed similarly. It is a perspective view of a dust collecting device in the state where a dust collecting container was removed. It is a perspective view from the bottom side of a dust collector. It is sectional drawing of the cyclone main body in the process in which a dust collector is attached. It is a fragmentary sectional view of a dust collecting container in the process of attaching a dust collecting device.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  1 to 10 show a first embodiment. The floor-traveling cyclone type vacuum cleaner of this embodiment includes a vacuum cleaner main body 1, a nozzle 3 that is detachably attached to the vacuum cleaner main body 1 through a pipe-shaped connecting portion 2, and the vacuum cleaner main body. 1 and a cyclone type dust collecting device 4 which is detachably attached to 1.

  The vacuum cleaner body 1 includes a body portion 6 including an electric blower 5 having a fan portion that is rotationally driven by an electric motor (not shown), a grip portion 7 provided on the upper surface of the body portion 6, When the vacuum cleaner main body 1 is on the floor surface (forward), it has traveling wheels 8 respectively provided in the direction perpendicular to the front-rear direction. A power cord (not shown) is provided at the rear portion of the body portion 6 so as to be drawn out and wound up. Further, an attachment receiving portion 9 for detachably attaching the dust collecting device 4 is provided in the front half of the body portion 6. The attachment receiving portion 9 includes a rear surface portion 10 that forms a partition with the rear half portion of the body portion 6, a bottom plate portion 11 that projects forward from a lower portion of the rear surface portion 10, and a front edge of the bottom plate portion 11. A front rising plate portion 12 as a second pressing portion that rises slightly along the front edge, and a left and right rising plate portion 13 that rises slightly along the left and right edges on the left and right edges of the bottom plate portion 11. The front, upper and left and right sides are opened. Further, a locking rib 14 projecting obliquely upward on the rear side protrudes from the front end of the front rising plate portion 12. And when the left side of the said vacuum cleaner main body 1 is made into one side, the inlet port 15 of the said electrical equipment blower 5 is provided in the right side used as the other side of the left-right direction of the said rear surface part 10. As shown in FIG. A caster 16 is provided in the center of the bottom surface of the bottom plate portion 11 in plan view. Further, a grip operating portion (not shown) in the middle of the connecting portion 2 is provided with a switch operating portion (not shown) for operating the electric blower 5.

  The dust collector 4 is a substantially cylindrical hollow structure in which both end surfaces are closed. The dust collector 4 can be attached to and detached from the attachment receiving portion 9 of the cleaner body 1 so that the center axis 17 of the center is directed in the left-right direction and the swirling airflow of the cyclone is directed in the left direction (lateral direction). Is placed sideways. The dust collector 4 is provided with a cyclone main body 18 at the center in the left-right direction, a dust collecting container 19 is provided on one side of the cyclone main body 18 in the left-right direction, and a filter is provided on the other side of the cyclone main body 18 in the left-right direction. A case 20 is provided. The filter case 20 houses a filter unit 21 that will be described in detail later. The cyclone body 18, the dust collecting container 19, and the filter case 20 are formed to be transparent or translucent.

  The cyclone body 18 is provided with an opening 22 on one side in the direction of the axis 17. The cyclone main body 18 is provided with a connection port 23 for connecting the connection portion 2 forwardly on the outer periphery of the cyclone main body 18, and a cyclone separation portion 24 centered on the axis 17 in the cyclone main body 18. Is formed. The cyclone separator 24 is spaced apart from an introduction portion 25 that guides the airflow sucked from the nozzle 3 in a substantially tangential direction of the inner peripheral surface of the cyclone main body 18, and an inner side of the inner peripheral surface of the cyclone main body 18. The provided first cylindrical part 26, the second cylindrical part 27 provided at an interval inside the first cylindrical part 26, and the air provided at an interval inside the second cylindrical part 27 And a communication cylinder 28 as an outlet. The introduction part 25 is provided integrally with the cyclone main body 18. The connection port 23 is connected to the introduction part 25.

  The first cylindrical portion 26 is formed in a substantially bottomed cylindrical shape centered on the axis 17. The first cylindrical portion 26 is detachably attached to a partition wall 29 integrally formed on the other side of the cyclone main body 18 at the base end side. The first cylindrical portion 26 has a rib 30 and a skirt portion 31 over the entire circumference on the tip side. Further, the first cylindrical portion 26 has a large number of air holes 32 on its side surface. These vent holes 32 are formed in a portion excluding the front side surface, the rear side surface, and the lower side surface of the first cylindrical portion 26, that is, the upper side surface close to the introduction portion 25. The rib 30 is formed in a disk shape that is coaxial with the shaft center 17 so that the outer periphery thereof is spaced apart from the inner periphery of the cyclone body 18. The skirt portion 31 is provided coaxially with the shaft center 17 on the distal end side of the first cylindrical portion 26 with respect to the rib 30. The skirt portion 31 is formed to extend outward from the shaft center 17 and toward one side of the shaft center 17. In addition, the front-end | tip part of the said skirt part 31 is formed in the short cylinder shape with the same diameter. Further, the outer diameter of the skirt portion 31 is slightly smaller than the outer diameter of the rib 30.

  The second cylindrical portion 27 is formed in a cylindrical shape having both ends in the direction of the axis 17 open. The second cylindrical portion 27 is attached to the partition wall 29 at the base end side. The distal end side of the second cylindrical portion 27 is in contact with the inner surface of the first cylindrical portion 26. Further, a communication portion 33 is formed on the side surface of the second cylindrical portion 27 to guide the air in the internal space of the first cylindrical portion 26 in a direction substantially tangential to the inner peripheral surface of the second cylindrical portion 27.

  The communication cylinder 28 is formed integrally with the partition wall 29. The communication cylinder 28 is formed coaxially with the shaft center 17. The inner diameter A of the communication cylinder 28 is smaller than the inner diameter B of the filter case 20. Note that a contact portion 34 with which the tip of the filter unit 21 contacts is provided on the other side of the partition wall 29. Further, an exhaust passage 36 located in the middle of an air path 35 from the nozzle 3 to the intake port 15 is provided inside the second cylindrical portion 27.

  Therefore, the airflow flowing from the nozzle 3 through the connection portion 2 and the connection port 23 into the cyclone separation portion 24 along the air path 35 along the inner peripheral surface of the cyclone main body 18. By flowing in the tangential direction, after turning in the cyclone body 18 and centrifuging dust, the dust flows from the communication portion 33 along the inner peripheral surface of the second cylindrical portion 27 in the tangential direction. Rotating in the second cylindrical portion 27, the dust is centrifuged, and further flows from the communicating cylinder 28 to the filter case 20.

  The dust collection container 19 is formed in a bottomed short cylindrical shape, and a dust collection chamber 37 is formed therein. That is, the dust collecting container 19 includes a disc-shaped one end plate 38 and a short cylindrical portion 39 protruding from the outer periphery of the one end plate 38. A first knob 40 is provided on the outer surface of the one side end face plate 38. In addition, an opening 39A is formed on the other side of the short cylindrical portion 39 of the dust collecting container 19. The end of the opening 39A is a bayonet coupling portion having the shaft center 17 as a twisted central axis so as to be connected in airtight communication with the end of the opening 22 provided on one side of the cyclone main body 18. 41 is detachable. The bayonet coupling portion 41 has a coupling structure that couples and separates the cyclone main body 18 and the dust collecting container 19 by combining so-called “insertion / removal” and “twist”. In the present embodiment, an outward bayonet protrusion 42 is provided on the outer edge of the opening 39A of the dust collecting container 19, and the bayonet protrusion 42 is formed on the inner edge of the opening 22 of the cyclone main body 18. A bayonet groove 43 to be inserted is formed. The bayonet groove 43 includes a groove inlet 43A that opens at the inner edge of the opening 22, and a locking groove 43B that communicates with the groove inlet 43A and extends in the circumferential direction along the edge of the opening 22. Have. The dust collection container 19 is fixed by rotating counterclockwise with respect to the cyclone main body 18 when viewed from one side of the shaft 17 and can be removed by rotating clockwise.

  The filter case 20 is formed in a bottomed short cylindrical shape. That is, the filter case 20 includes a disk-like other end face plate 44 and a short cylindrical portion 45 protruding from the outer periphery of the other end face plate 44. An opening 46 is formed on one side of the short cylindrical portion 45. The opening 46 is hermetically fixed to a fixing portion 47 provided on the other side of the cyclone main body 18. The filter case 20 is screwed to the cyclone main body 18. The other end face plate 44 is formed with a circular mounting hole 48 that penetrates in the left-right direction coaxially with the axis 17. The filter unit 21 is detachably attached to the attachment hole 48. The short cylindrical portion 45 of the filter case 20 is provided with an exhaust port 49 that communicates with the intake port 15 so as to communicate with the dust collecting device 4 when the dust collecting device 4 is normally set in the attachment receiving portion 9. . The inner diameter C of the mounting hole 48 is larger than the inner diameter A of the communication cylinder 28 and smaller than the inner diameter B of the filter case 20.

  The filter unit 21 is detachably fitted into the mounting hole 48 and has a lid 51 having a second knob 50 on the outer surface, and a woven or non-woven fabric provided integrally with the lid 51. The filter main body 52 made from a product and the reinforcement frame 53 for hold | maintaining this filter main body 52 are provided. The lid body 51 and the frame body 53 are integrally formed of synthetic resin. The lid 51 has a disk shape, and the second knob 50 is provided on the outer surface thereof, and an airtight packing 51A is provided on the outer periphery thereof. The frame body 53 has a cylindrical shape coaxial with the shaft center 17, and a base end thereof is connected to the inner surface of the lid body 51. In addition, the inner diameter D of the frame body 53 is larger than the inner diameter A of the communication cylinder 28 and smaller than the inner diameter C of the mounting hole 48. Further, the front end of the frame 53 is hermetically connected to the contact portion 34 so as to surround the communication cylinder 28 when the filter unit 21 is inserted into the mounting hole 48 and mounted. Yes. A plurality of communication holes 55 that communicate between the inside and the outside are formed in the peripheral surface of the frame body 53 in a window hole shape. Further, a packing 54 that abuts against the abutting portion 34 is provided on the outer periphery of the distal end of the frame 53. The filter main body 52 has a substantially cylindrical shape coaxial with the shaft center 17 and is mounted along the inner peripheral surface of the frame 53. Accordingly, the air that has passed through the communication cylinder 28 enters the inside of the filter main body 52, passes through the filter main body 52 and the communication hole 55, and is a gap 56 between the frame 53 and the filter case 20. Then, the air is further exhausted from the exhaust port 49 to the intake port 15. At this time, fine dust contained in the air is captured by the filter body 52.

  Furthermore, the structure for setting the said dust collector 4 in the attachment receiving part 9 of the said vacuum cleaner main body 1 correctly is demonstrated. A stopper 57 for locking the cyclone main body 18 is provided on the upper surface of the body portion 6 facing the attachment receiving portion 9 of the cleaner body 1. On the other hand, a stopper receiving portion 58 capable of locking the stopper 57 is provided at the rear portion of the upper surface of the cyclone main body 18. Thereby, the stopper 57 can be locked to the stopper receiving portion 58.

  In addition, a downward insertion protrusion 59 for positioning is provided at the rear portion of the cyclone main body 18. The insertion protrusion 59 has a substantially rectangular plate shape when viewed from the rear, and is perpendicular to the axis 17 and substantially tangential to the circumferential surface of the cyclone body 18. And is integrally formed. And the receiving recessed part 61 in which the said insertion protrusion 59 is inserted is provided in the lower part of the rear surface part 10 of the said attachment receiving part 9, and the upper part is opened. Then, the insertion protrusion 59 is inserted into the receiving recess 61, whereby the dust collector 4 is positioned in the left-right direction. On the other hand, a locking projection 63 is provided at the front lower portion of the cyclone body 18, and the locking projection 63 is configured to be engageable with the locking rib 14. In addition, the convex part 67 is provided in the front center of the said baseplate part 11, and the positioning of the said dust collector 4 in the left-right direction is carried out by positioning the said latching protrusion 63 so that this convex part 67 may be covered. Made.

  An abutting portion 68 is provided below the rear portion of the short cylindrical portion 39 of the dust collecting container 19. The abutting portion 68 has a bottom surface portion 69 that is horizontal when set, and a pedestal-shaped pressing portion 70 with which the bottom surface portion 69 abuts is provided upward on the rear portion of the mounting receiving portion 9. Yes. The bottom surface portion 69 of the abutting portion 68 is at a position higher than the lower end of the insertion protrusion 59, and the pressing portion 70 is at a position higher than the upper end of the receiving recess 61, so that the insertion protrusion When the bayonet coupling portion 41 is slack before 59 is completely inserted into the receiving recess 61, the pressing portion 70 pushes up the abutting portion 68, and the dust collecting container 19 is moved to the shaft. The bayonet protrusion 42 can be forcibly moved to the groove 43B side by rotating counterclockwise with respect to the cyclone body 18 with the center 17 as the rotation center. On the other hand, a projection 71 as a second abutting portion is provided downward at the front lower portion of the short cylindrical portion 39, and this projection 71 is provided side by side with the locking projection 63 in the left-right direction. It has been. Further, similarly to the locking projection 63, a projection 72 is provided downward at the front lower portion of the short cylindrical portion 45 of the filter case 20. It is provided side by side in the direction. The protrusion 71 of the dust collecting container 19 and the protrusion 72 of the filter case 20 can contact the front rising plate portion 12.

  Next, the effect | action is demonstrated about the said structure. The dust collector 4 is assembled in the following procedure. First, in a state where the first knob 40 is picked, the opening 39A of the dust collecting container 19 is aligned with the opening 22 of the cyclone main body 18, and the bayonet protrusion 42 is inserted into the groove inlet 43A. After that, the dust collecting container 19 is rotated counterclockwise about the shaft center 17 with respect to the cyclone main body 18, and the bayonet protrusion 42 is introduced into the locking groove 43B. A dust container 19 is coupled to the cyclone body 18. Next, the second knob 50 is picked and the filter unit 21 is inserted into the mounting hole 48. At this time, the packing 54 of the lid 51 comes into close contact with the mounting hole 48, so that the lid 51 is attached to the mounting hole 48 in an airtight manner. At this time, the front end of the frame body 53 is airtightly connected to the contact portion 34 so as to surround the communication cylinder 28. In this way, the dust collector 4 is assembled.

  A procedure for attaching the dust collector 4 assembled in this way to the attachment receiving portion 9 will be described. First, as shown in FIG. 9, the dust collecting device 4 is slightly lowered downward, and the locking protrusion 63 is hung on the locking rib 14 so as to cover the convex portion 67. In this state, when the rear portion of the dust collector 4 is pushed downward, the insertion protrusion 59 is inserted into the receiving recess 61. At this time, the dust collector 4 is positioned at the center in the left-right direction of the cleaner body 1. When the rear portion of the dust collector 4 is further pushed down, the stopper 57 engages with the stopper receiving portion 58. In this way, the stopper 57 engages with the stopper receiving portion 58, so that the locking protrusion 63 that is hooked on the locking rib 14 is engaged with the locking rib 14 so that it does not come off. In this way, the dust collector 4 is attached to the attachment receiving portion 9. At this time, the bottom surface portion 69 of the contact portion 68 contacts the upper surface of the pressing portion 70.

  When the dust collection container 19 is not sufficiently attached to the cyclone body 18, that is, when the dust collection container 19 is not rotated to the end with respect to the cyclone body 18, the cyclone body 18 And the airtightness between the dust collecting container 19 is lowered. At this time, the protrusion 71 of the dust collecting container 19 is not aligned with the locking protrusion 63 and is positioned in front of the locking protrusion 63. In this state, when the dust collector 4 is attached to the cleaner body 1 as described above, as shown in FIG. 10, the locking protrusion 63 is hung on the locking rib 14, and the dust collector When the rear part of 4 is pushed downward, the contact part 68 contacts the upper surface of the pressing part 70. From this point, when the rear part of the dust collector 4 is further pushed down, the abutting part 68 is pushed up by the pressing part 70. At the same time, the protrusion 71 is also pushed backward by the front rising plate portion 12. In this way, the dust collection container 19 rotates counterclockwise around the axis 17 when viewed from one side of the axis 17. As a result, the bayonet protrusion 42 is moved to the back side of the locking groove 43B, and the dust collecting container 19 is completely attached to the cyclone main body 18. At the same time, the stopper 57 engages with the stopper receiving portion 58. In this way, the dust collector 4 can be attached to the cleaner body 1 in a state where the slack of the cyclone body 18 and the dust collecting container 19 is eliminated.

  When the slack of the dust collecting container 19 is too large, the projection 71 comes into contact with the front rising plate portion 12 from above, so that the locking projection 63 is less likely to be hooked on the locking rib 14. Accordingly, the user notices the abnormality of the dust collecting device 4 and reattaches the dust collecting container 19 to the cyclone main body 18.

  In this way, when the electric blower 5 is operated by operating the switch operating unit (not shown) with the dust collecting device 4 attached, air is sucked through the intake port 15. Due to this suction force, air is sucked together with dust from the nozzle 3. This air is introduced into the cyclone separation unit 24 from the introduction unit 25 through the connection unit 2 and the connection port 23. In the cyclone separating portion 24, the airflow flows toward one side of the axis 17 while turning along the inner peripheral wall of the cyclone main body 18. At this time, coarse dust in the airflow is separated by centrifugal force and stored in the dust collecting chamber 37 of the dust collecting container 19. The airflow from which coarse dust has been separated passes over the skirt portion 31 and the rib 30, passes through the vent hole 32 of the first cylindrical portion 26, and flows into the first cylindrical portion 26. The airflow that has flowed into the first cylindrical portion 26 is introduced along the inner peripheral wall of the second cylindrical portion 27 by the communication portion 33. The airflow flowing into the second cylindrical portion 27 flows toward one side of the axis 17 while turning along the inner peripheral wall of the second cylindrical portion. At this time, medium-level dust in the airflow is separated by centrifugal force and collected between the first cylindrical portion 26 and the second cylindrical portion 27. Further, the airflow from which the medium dust is separated flows into the filter main body 52 provided in the filter case 20 through the communication cylinder 28.

  The airflow that has flowed into the filter body 52 passes from the inside to the outside of the filter body 52. At this time, minute dust contained in a small amount in the airflow is captured by the filter main body 52, so that clean air is generated outside the filter main body 52. The clean air is once accumulated in the gap 56 between the filter main body 52 and the filter case 20, and then sucked into the conduction blower 5 through the exhaust port 49 and the intake port 15, and then the cleaning air. It is exhausted to the atmosphere outside the machine body 1.

  When the filter body 52 is clogged during or after cleaning, the filter 50 can be removed by picking the second knob 50 while the dust collector 4 is attached to the cleaner body 1. The unit 21 is removed from the mounting hole 48. Then, dust adhering to the filter body 52 is removed, and the filter unit 21 is inserted into the mounting hole 48 and attached again. Therefore, when cleaning the filter unit 21, it is not necessary to remove or disassemble the dust collecting device 4 from the cleaner body 1, and it is possible to remove only the filter unit 21. Further, since the user only has to pick only the second knob 50, it is possible to make the hand difficult to get dirty.

  Even when the electric blower 5 is operated by operating the switch operating unit (not shown) in a state in which the filter unit 21 is forgotten to be attached to the mounting hole 48, the electric blower 5 is connected to the mounting hole 48. Then, outside air is introduced into the filter case 20. The introduced outside air is sucked into the electric blower 5 through the exhaust port 49 and the intake port 15 and then exhausted to the atmosphere outside the cleaner body 1. As a result, when the filter unit 21 is not attached, almost no air is sucked from the nozzle 3. Therefore, it is possible to prevent the phenomenon that fine dust is sucked from the nozzle 3 and diffuses into the atmosphere.

  After cleaning, the stopper 57 is operated to unlock the stopper receiving portion 58, and the rear portion of the dust collecting device 4 is lifted upward so that the dust collecting device 4 is moved to the main body of the cleaner. Remove from 1. Next, in a state where the dust collecting device 4 is set up so that the dust collecting container 19 is on the lower side, the first knob 40 is picked, and the dust collecting container 19 is viewed from below the shaft center. The bayonet coupling portion 41 is loosened by rotating it clockwise about 17 and the dust collecting container 19 is removed from the cyclone body 18. Then, the coarse dust accommodated in the removed dust collecting container 19 is discarded. Further, by removing the first cylindrical portion 26 from the partition wall 29 of the cyclone main body 18, medium dust accumulated between the first cylindrical portion 26 and the second cylindrical portion 27 is discarded. Again, after attaching the first cylindrical portion 26 to the partition wall 29 of the cyclone main body 18, the dust collecting container 19 is attached to the cyclone main body 18.

As described above, in the above embodiment, the nozzle 3, the cleaner body 1 provided with the electric blower 5 and the intake port 15, the cyclone separator 24, the dust collecting container 19, the filter case 20, and the filter The filter unit 21 is detachably inserted into the case 20, and the exhaust port 49 is provided in the filter case 20 and communicates with the intake port 15. The filter unit 21 is attached to the mounting hole 48 of the filter case 20. A lid 51 that is detachably attached to the lid 51, and is provided integrally with the lid 51 so that the primary side can communicate with the communicating cylinder 28 as an air outlet, and the secondary side can communicate with the exhaust port 49. The filter body 52 provided on the cleaner body 4 without removing or disassembling the dust collector 4 from the cleaner body 1. By removing the knob 50 and pulling out only the filter unit 21 and removing it from the mounting hole 48, it is possible to easily remove dust adhering to the filter body 52, and forget to attach the filter unit 21. Even when trying to use a vacuum cleaner, it can be visually confirmed that there is no filter unit 21 from the appearance, so that not only can the forgetting to attach the filter unit 21 be prevented,
Even if the filter unit 21 is forgotten to be attached and a vacuum cleaner is used, only the outside air from the mounting hole 48 is sucked into the intake port 15 and almost no air is sucked from the nozzle 3. The sucked fine dust is not released to the atmosphere through the intake port 15.

  The filter case 20 has a cylindrical shape, the communication cylinder 28 side is provided on one side of the axis 17, the mounting hole 48 is provided on the other side, and the filter case 20 is provided on the circumferential surface of the filter case 20. An exhaust port 49 is provided, the filter main body 52 of the filter unit 21 has a cylindrical shape coaxial with the shaft center 1, and the outer diameter D of the filter main body 52 is smaller than the inner diameter B of the filter case 20, Furthermore, since the tip of the filter body 52 can be brought into contact with the contact portion 34 so as to surround the communication cylinder 28, the air that has passed through the communication cylinder 28 is passed from the inside of the filter body 52 to the filter. It can pass through the gap 56 between the main body 52 and the filter case 20 to capture very small dust and exhaust clean air.

  Further, a frame 53 formed in a cylindrical shape coaxial with the shaft 17 is formed integrally with the lid 51, and the filter body 52 is supported by the frame 53. The filter body 52 made of non-woven fabric can be prevented from being greatly deformed by wind pressure due to the strength of the frame 53, and the performance of the filter body 52 can be maintained.

  As described above, the vacuum cleaner according to the present invention can be applied to various uses. For example, in the embodiment, the dust collecting container is connected to the cyclone main body by bayonet coupling, but may be coupled by a screw system in which a male screw is provided on one side and a female screw is provided on the other side.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner body 3 Nozzle 5 Electric blower 15 Intake port 17 Axle center 19 Dust collection container 20 Filter case 21 Filter unit 24 Cyclone separation part 28 Communication cylinder (air outlet)
35 Air path 48 Mounting hole 49 Exhaust port 51 Lid 52 Filter body 53 Frame B Inner width (inner diameter)
D Outer width (outer diameter)

Claims (3)

A vacuum cleaner body provided with a nozzle, an air inlet of an electric blower, and centrifugal separation of dust by rotating the air in the middle of an air path provided between the nozzle and the electric blower provided in the vacuum cleaner body A cylindrical cyclone separating portion, a dust collecting container provided in the cyclone separating portion, a filter case communicating with the air outlet side of the cyclone separating portion in the air path, and a detachably inserted into the filter case A filter unit; and an exhaust port that is provided in the filter case and communicates with the intake port,
The filter unit is detachably provided in a mounting hole formed in the filter case, and is provided integrally with the lid so that the primary side can communicate with the air outlet side, and the secondary side is the A vacuum cleaner having a filter main body provided to be able to communicate with an exhaust port.   The filter case has a cylindrical shape, the air outlet side is provided on one side of the axis, the attachment hole is provided on the other side, the exhaust port is provided on the peripheral surface of the filter case, The filter body has a cylindrical shape whose outer width is smaller than the inner width of the filter case centered on the shaft center, and its base end is connected to the lid body, and its tip can be brought into contact with the air outlet side. The vacuum cleaner according to claim 1, wherein the vacuum cleaner is provided.   3. The electric vacuum cleaner according to claim 2, wherein the filter body is supported by a cylindrical frame centered on the axis, and the frame is connected to the lid.

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