JP6271219B2 - Electric vacuum cleaner - Google Patents

Description

  Embodiments described herein relate generally to a vacuum cleaner including a dust collector provided in a main body case.

  Conventionally, this type of vacuum cleaner includes a main body case that houses an electric blower and a dust collector that is detachably attached to the main body case. This dust collecting device is a so-called dust collecting cup, and separates and collects dust from dust-containing air sucked by driving of an electric blower.

  The filter for dust collection that is detachably attached to such a dust collector has a periphery that is held by a holding frame portion as a holding portion to constitute a filter body. And this filter body is press-fitted into the inside of the cup portion as the housing portion via a seal member attached to the outer periphery of the holding frame portion so that it can be attached to and detached from the cup portion without using a complicated attachment / detachment mechanism. It has come to be.

  However, in such a configuration, when dust adheres to the sealing member, the sealing member becomes slippery, the sealing performance with respect to the cup portion is lowered, and the filter body is easily detached from the cup portion. Therefore, it is necessary to set the press-fitting load of the seal member to be strong in advance. In this case, it is difficult to attach and detach the cup part.

JP 2013-27545 A

  The problem to be solved by the present invention is to provide a vacuum cleaner provided with a dust collecting device that can easily attach and detach the filter body to and from the accommodating portion side while making the filter body compact.

  The vacuum cleaner of the embodiment has a main body case that houses an electric blower. Moreover, this vacuum cleaner has a dust collector provided in the main body case. This dust collector includes an accommodating portion that internally includes a separating portion that separates dust in the dust-containing air sucked by driving of the electric blower. The dust collector includes a filter body. The filter body includes a filter that collects dust smaller than the dust separated by the separation unit. Moreover, this filter body has a holding part for holding the filter. The filter body includes a seal member that is provided around the outside of the holding portion and can be tightly attached to the housing portion side by the negative pressure generated by driving the electric blower to close the gap between the filter and the housing portion side. . In addition, the dust collector includes a dust removing mechanism that is provided on the filter body and can remove dust collected by the filter from the filter. And this dust collector is provided in the dust removal mechanism, and is provided with the attachment / detachment mechanism which makes the filter body attachable / detachable with respect to the accommodating part side.

It is a disassembled perspective view of the dust collector of the vacuum cleaner of one Embodiment. It is a perspective view which shows the filter body of a dust collector same as the above. It is a perspective view which shows the accommodating part side of a dust collector same as the above. (a) is a perspective view showing attachment and detachment of the filter body, (b) is a cross-sectional view of the main part at the time of attachment, and (c) is a cross-sectional view of the main part at the time of removal. It is a perspective view which shows a dust collector same as the above from back. It is a perspective view which shows the main body case of a vacuum cleaner same as the above from the front. It is a perspective sectional view of a vacuum cleaner same as the above. It is a perspective view which shows a vacuum cleaner same as the above.

  Hereinafter, the configuration of an embodiment will be described with reference to FIGS. 1 to 8.

  In FIG. 8, reference numeral 11 denotes a so-called canister-type vacuum cleaner. The vacuum cleaner 11 includes a pipe portion 12 that is an air passage forming body, and a vacuum cleaner body 13 to which the pipe portion 12 is detachably connected. have.

  The pipe part 12 is provided on the distal end side of the hose body 16, the connecting pipe part 15 connected to the cleaner body 13, the flexible hose body 16 communicating with the distal end side of the connecting pipe part 15. The hand operating section 17, the extension pipe 18 detachably connected to the distal end side of the hand operating section 17, and the floor brush 19 as a suction port body detachably connected to the distal end side of the extension pipe 18 and the like And.

  For example, a loop-shaped hand gripping portion 21 protrudes toward the hose body 16 on the hand operation portion 17, and a plurality of operation setting buttons 22 are provided on the hand gripping portion 21.

  As shown in FIGS. 1 to 8, the cleaner body 13 includes a body case 26 having a running wheel 23, which is a large-diameter wheel, on both sides and a swivel wheel 24 and the like on the lower side. In the upper part, a dust collecting device 27 as a dust collecting cup as a dust collecting part is detachable. The cleaner body 13 is configured to be able to travel (move) at least along the front-rear direction on the floor surface as a surface to be cleaned by the traveling wheel 23 and the turning wheel 24. Hereinafter, the front-rear direction and the left-right direction are based on the traveling (moving) direction of the cleaner body 13 (main body case 26).

  The main body case 26 is made of, for example, a synthetic resin, and supports a main body 31 located behind the dust collector 27 and a lower part of the front of the main body 31 to support the lower portion of the dust collector 27. And a protrusion receiving portion 32 that is a dust collector supporting portion as a mounting portion.

  The traveling wheels 23 are rotatably supported on both sides of the main body 31. A handle 34 for projecting (carrying) the cleaner body 13 (main body case 26) is provided on the upper side of the front portion of the main body 31. Further, inside the main body 31, there is an electric blower 36, a control circuit portion 37 as a control means for controlling the operation of the electric blower 36, and a power cord 38 that can supply power to the electric blower 36 and the like from an external power source. A cord reel device (not shown) as a wound power supply unit is accommodated.

  In addition, an intake opening 41 as an opening that communicates with the suction side of the electric blower 36 and is airtightly connected to the downstream side of the dust collector 27 attached to the main body case 26 is disposed at the front of the main body 31. It is formed to be biased. Further, a locking clamp 42 as a dust collecting device locking portion for locking and holding the dust collecting device 27 is disposed on the upper surface of the main body 31 above the intake opening 41. In addition, a positioning concave portion 43 as a main body side guide portion for positioning and guiding the dust collecting device 27 is provided in a central portion in the left-right direction below the intake opening 41. A plurality of exhaust holes 44 that communicate the exhaust side of the electric blower 36 and the outside of the main body case 26 are formed at the rear of the main body 31. A cord outlet 45 is formed for communicating with the outside of the case 26 and for inserting and removing the power cord 38.

  The intake opening 41 is formed in a longitudinal shape, that is, horizontally long in the left-right direction, and is positioned below the handle 34. In the intake opening 41, reinforcing ribs 47 are arranged in a grid pattern. Further, an annular rear seal member 48 having elasticity such as packing for airtightly connecting to the downstream side of the dust collector 27 is disposed on the outer edge portion of the intake opening 41. Further, the intake opening 41 is covered with an intake filter 49. The intake opening 41 communicates with the suction side of the electric blower 36 through a duct portion 50 disposed in the main body 31.

  The locking clamp 42 presses and locks the dust collecting device 27 from above. The locking clamp 42 can be rotated in the vertical direction, and dust collection is performed by a spring (not shown) as a locking portion biasing means. The device 27 is biased downward to lock the device 27. The locking clamp 42 is located immediately below the handle 34.

  The protrusion receiving part 32 is inclined downward toward the rear. A swiveling wheel 24 is disposed in the lower part of the protrusion receiving part 32 so as to extend near the lower part of the main body part 31. In addition, a linear main body side air passage portion 53 that is long and does not bend along the front-rear direction is disposed inside the protrusion receiving portion 32, and at the upstream end of the main body side air passage portion 53, A main body suction port 54 to which the connection pipe portion 15 of the pipe portion 12 is connected is formed on the front surface of the protrusion receiving portion 32, and a rectangular connection port 55 is provided at the downstream end of the main body side air passage portion 53, for example. It is formed in front of the main body 31 at the uppermost end of 32. In other words, the main body side air passage portion 53 communicates the main body suction port 54 and the connection port 55. Therefore, the main body suction port 54 can communicate with the upstream side of the dust collector 27 via the main body side air passage portion 53 and the connection port 55, and the connection port 55 is located at the lowest position in the protrusion receiving portion 32. Has been placed. An annular lower seal member 56 having elasticity such as packing for airtight connection with the upstream side of the dust collector 27 is disposed at the outer edge of the connection port 55.

  The handle 34 is formed, for example, in a loop shape on the upper surface portion of the front portion of the main body portion 31.

  The operation of the electric blower 36 is controlled by the control circuit unit 37 in accordance with the operation of the setting button 22. The electric blower 36 is disposed, for example, with the suction side as the upper side.

  The control circuit unit 37 is electrically connected to the setting button 22, and is electrically operated in an operation mode (for example, strong mode, medium mode, weak mode, automatic mode, stop mode, etc.) set by operating the setting button 22. The operation of the blower 36 is set.

  On the other hand, the dust collector 27 includes a cup part 61 that is a dust collecting part as an accommodating part, an inner cylinder part 62 that is a structure as a separating part that is detachably attached to the cup part 61, and the inner cylinder. The filter body 63 as a separation main body part that can be attached to and detached from the part 62, the lid part 64 that can be attached to and detached from the inner cylinder part 62 by rotation, and the cup part 61 and the inner cylinder part 62 are detachably locked. And a clamp 65. The dust collector 27 is fixed by being fitted to the front portion of the main body 31 on the rear side in a state where the dust collector 27 is attached to the main body case 26. Hereinafter, in the dust collector 27, the vertical direction means one end side and the other end side in the axial direction of the dust collector 27 (an upper side that is one end side of the alternate long and short dash line L in FIG. Side). That is, the vertical direction in the dust collector 27 is based on the vertical direction in the state of the dust collector 27 alone, and the vertical direction of the dust collector 27 in the state of being attached to the main body case 26 is not necessarily the same. It may not match.

  The cup part 61 includes a cup part body 67 as a container body formed in a bottomed cylindrical shape, a suction part 68 as a dust collector side air passage part provided integrally with the cup part body 67, and a cup. And a handle 69 for carrying the dust collector 27 projecting from the main body 67.

  The cup body 67 is made of, for example, light-transmitting (transparent) synthetic resin, and is configured to collect dust (coarse dust) in the lower part inside, and the upper end is attached to the inner cylinder part 62 and the like. Therefore, a dust discharge port 71 for discharging dust is provided. Further, a suction port 72 communicating with the downstream end of the suction part 68 is opened along the tangential direction at the rear part of the cup part main body 67. In addition, this cup part main body 67 is good also as a dust discharge port, for example so that a lower end part can be opened and closed. Further, the inner cylindrical portion 62 is placed and locked on the upper end portion of the cup portion main body 67, and the inner cylindrical portion 62 is disposed in the circumferential direction on the inner peripheral side of the upper end portion of the cup portion main body 67. Positioning portions 75 for positioning in a concave manner are formed at positions facing each other in the radial direction. Further, on the outer peripheral side of the upper edge portion of the cup portion main body 67, a stepped receiving step portion 76 as a lid portion receiving portion for receiving the lower end of the lid portion 64 is formed continuously over the entire circumference, for example. Has been. Then, at the rear part near the upper end of the cup part main body 67, a tongue-like locking projection 77 as a dust collector side guide part is inclined downward and rearward at the center part in the left-right direction. Projected to The locking projection 77 is inserted into the positioning recess 43 with the dust collecting device 27 mounted on the main body case 26 to position the dust collecting device 27 in the front / rear and left / right directions with respect to the main body case 26 and to the main body case 26. This guides the direction in which the dust collector 27 is attached and detached. In the present embodiment, the dust collector 27 is attached and detached by rotating in the front-rear direction with respect to the main body case 26.

  The suction part 68 sucks dust-containing air sucked from the main body suction port 54 through the pipe part 12 and into the dust collector 27 (cup part 61) through the main body side air passage part 53 and the connection port 55. The air is sucked from the mouth 72 and is arranged along the vertical direction along the rear part of the cup body 67. That is, the suction portion 68 is opposed to the front portion of the main body 31 in a state where the dust collector 27 is mounted on the main body case 26 (projection receiving portion 32). The upper end portion of the suction portion 68 is bent in an L shape so as to communicate with the suction port 72, and the lower end portion of the suction portion 68 extends linearly downward and is connected to the lower end portion of the cup portion main body 67. Opening is made at substantially the same position, and this opening is a communication port 81 inclined with respect to the axial direction of the cup portion main body 67. The communication port 81 is gradually inclined upward toward the rear. Furthermore, a flat flange-like pressure contact portion 82 that protrudes from the peripheral edge portion of the communication port 81 and presses against the lower seal member 56 at the peripheral edge portion of the connection port 55 is projected.

  The handle 69 is for holding the cup part 61 (dust collector 27) when dust is discarded from the dust outlet 71, and is arranged in a loop shape along the vertical direction on the side part of the cup part 61. Yes. The handle 69 is positioned close to the front part of the side of the main body 31 with the dust collector 27 attached to the main body case 26, and is gripped when the dust collector 27 is attached to the main body case 26. I can't do it. Further, a clamp attaching portion 84 for attaching the clamp 65 is recessed in the upper end portion of the handle 69.

  As shown in FIGS. 3 and 7, the inner cylindrical portion 62 includes a bottomed cylindrical (receiving tray-shaped) receiving portion 87 serving as a support portion that is open on the upper side and supports the filter body 63, and a cylindrical inner cylindrical portion. The main body 88 and a shade part 89 as a covered cylindrical enlarged part having a diameter larger than that of the inner cylindrical part main body 88 are integrally provided. The cup body 61 is accommodated and arranged coaxially with the cup section 61 (cup section body 67) at the center of the section body 67). A separation unit (centrifugation unit) 91 for centrifuging dust is configured between the inner cylinder body 88 and the inner periphery of the cup unit 61, and the shade unit is positioned below the separation unit 91. At a position below 89, a dust reservoir 92 for storing the dust centrifuged by the separator 91 is configured.

  The receiving portion 87 has an outer diameter that is slightly smaller than the inner diameter of the cup portion main body 67. The receiving portion seal member 95 as a support portion sealing member is attached to the outer edge of the lower end portion in an annular shape. It has been. A circular communication opening 96 that communicates with the inside of the inner cylinder main body 88 is concentrically opened at the center of the receiving portion 87. Further, on the inner peripheral side of the peripheral wall portion of the receiving portion 87, locking receiving portions 97 for removably locking the filter body 63 are formed at positions facing each other in the radial direction. Then, on the outer peripheral side of the peripheral wall portion of the receiving portion 87, convex portions 98 that are respectively inserted into the positioning portions 75 of the cup portion main body 67 and are positioned in the circumferential direction are formed at positions facing each other in the radial direction. .

  The receiving portion seal member 95 is pressed against the inner peripheral surface of the cup portion main body 67 to close the gap, and prevents dust in the cup portion main body 67 from rising to the filter body 63 side.

  The locking receiving portion 97 is integrally provided with side wall portions 97a and 97a protruding from the inner peripheral surface of the receiving portion 87 to the center side of the inner cylindrical portion 62, and an inner wall portion 97b connecting the side wall portions 97a and 97a. It is formed in a U shape in plan view. Therefore, an insertion space portion 99 is formed between the latch receiving portion 97 and the inner peripheral surface of the receiving portion 87. Further, a locking opening 97c for locking the filter body 63 is opened in the inner wall 97b of the locking receiving portion 97.

  The inner cylindrical portion main body 88 is disposed coaxially with the receiving portion 87, protrudes downward from the outer edge portion of the communication opening 96 at the center of the receiving portion 87, and is coaxial with the receiving portion 87. A plurality of openings 101 are formed around the inner cylinder portion main body 88 so as to penetrate in the radial direction, and the entire openings 101 are covered with the separation filter 102. Further, the lower end portion of the inner cylinder portion main body 88 is closed by the bottom surface portion 103.

  The shade part 89 compresses dust by using the negative pressure generated by driving the electric blower 36, and is expanded from the peripheral edge of the lower end part of the inner cylindrical part main body 88 and protrudes downward. It opens and is located at the lower end of the inner cylinder part 62. Therefore, the shade part 89 has a larger diameter than the inner cylinder part main body 88 and projects in the radial direction with respect to the inner cylinder part main body 88. Further, a plurality of compression openings 108 are opened at substantially equal intervals in the circumferential direction above the shade portion 89, and these compression openings 108 are covered with a compression filter 109. The shade portion 89 is spaced upward from the bottom portion of the cup portion 61.

  Further, as shown in FIGS. 1 to 8, the filter body 63 is provided in the pleated filter 111 as a filter, a holding frame portion 112 as a holding portion for holding the pleated filter 111, and the holding frame portion 112. The dust removing mechanism 113 is integrally provided, and is a flat disk as a whole. The dust removing mechanism 113 is detachably mounted on the receiving portion 87 of the inner cylindrical portion 62.

  The pleated filter 111 collects dust that has not been separated (cannot be separated) by the separating unit 91, that is, dust that is smaller than the dust separated by the separating unit 91 (fine dust). It is formed by being bent in a bowl shape, and a large number of fold lines, that is, ridge lines 111a are formed linearly along a predetermined direction, and are parallel to each other. The pleated filter 111 is bent so that the ridge lines 111a are alternately positioned in the vertical direction, which is the upstream and downstream direction of the wind passing through the pleated filter 111.

  The holding frame portion 112 is formed integrally with, for example, synthetic resin and has a shape that holds the shape of the holding frame portion main body 115 as an annular holding portion main body that can be fitted to the inner periphery of the receiving portion 87 and the pleat filter 111. Holding part 116.

  In the holding frame main body 115, installation portions 118 for installing the dust removal mechanism 113 are integrally formed in positions along the ridge line 111a of the pleat filter 111 at positions facing each other in the radial direction of the inner periphery. At both ends of each of the installation portions 118, lid portion guide portions 119 and 119 for guiding the lid portion 64 so as to be rotatable in the circumferential direction and preventing the lid portion 64 from coming off along the axial direction are respectively provided. Further, a seal attachment portion 115a, into which the seal member 121 is integrally formed by insert molding, projects from the outer peripheral edge of the holding frame main body 115 along the radial direction.

  The sealing member 121 surrounds the outside (periphery) of the holding frame 112 with a flexible and elastic synthetic resin such as rubber or elastomer, that is, the holding frame 112 (the holding frame main body 115). Along the outer periphery, the seal mounting portion 115a of the holding frame main body 115 is formed in an annular belt shape covering the upper and lower sides and the outer periphery in a U-shape, and the thin plate-like easily deformable lip portions 121a and 121a It is extended to. Here, as long as the seal member 121 covers at least the upper and lower portions of the seal attachment portion 115a, that is, the portions facing the cup portion 61 (cup portion main body 67) and the lid portion 64, the outer periphery of the seal attachment portion 115a is provided. A part of the seal member 121 may be exposed from the outer peripheral surface. In the seal member 121, the lip portion 121a located on the lower end side, that is, the lower side, is directly overlapped with the cup portion 61 side, in this embodiment, the upper end portions of the cup portion 61 and the inner cylindrical portion 62 (receiving portion 87). Thus, the gap is closed by being adsorbed from above by the negative pressure generated by driving the electric blower 36. That is, the seal member 121 is not pressed into the cup portion 61 (cup portion main body 67). Therefore, the outer diameter of the seal member 121 is set to a predetermined value larger than the outer diameters of the cup portion 61 (cup portion main body 67) and the receiving portion 87 of the inner cylindrical portion 62. Hereinafter, in the present embodiment, the cup part 61 side includes a member such as the inner cylinder part 62 fixed to the cup part 61, but may be the cup part 61 itself, for example.

  The shape holding portion 116 is integrally formed at the position of the inner peripheral edge portion of the holding frame portion main body 115 between the installation portions 118 and 118 of the holding frame portion main body 115 by a member such as hard synthetic resin. These shape holding portions 116 are formed so as to cover each ridgeline 111a of the pleated filter 111.

  The dust removal mechanism 113 removes dust collected by the pleated filter 111, and is fixed between the fixing portions 125 and 125 fixed to the installation portions 118 and 118 of the holding frame main body 115, respectively. And a dust removing body 127 slidably arranged along the guide body 126, and arranged in a bridge shape with respect to the pleated filter 111. The dust removal mechanism 113 is symmetrical with respect to the center line of the filter body 63, and in this embodiment, is arranged at the center of the filter body 63 along the diameter of the filter body 63.

  Each fixing portion 125 has a wall shape protruding upward with respect to the installation portions 118 and 118. Further, a recess 131 is provided on the outer surface of each fixing portion 125, that is, on the side opposite to the pleat filter 111, and the filter body 63 is detachably locked to the inner cylinder portion 62 in the recess 131. An attachment / detachment mechanism 132 is attached.

  Each attachment / detachment mechanism 132 urges the attachment / detachment mechanism main body 135 in the rotation direction with respect to each fixing portion 125, and the attachment / detachment mechanism main body 135 pivotally supported along the radial direction of the filter body 63. Detachable urging means (not shown) such as a torsion spring is provided. Each attachment / detachment mechanism main body 135 has a lower end inserted through the installation portion 118 and protrudes downward from the seal member 121. Each attachment / detachment mechanism main body 135 is positioned at the lower end portion, inserted into each insertion space 99 of the inner cylindrical portion 62, and locked to the locking opening 97c of each locking receiving portion 97. A claw portion 139 and a handle portion 140 which is a release portion as an operation portion located at the upper end portion of the attachment / detachment mechanism main body 135 are integrally provided. Then, each attaching / detaching mechanism 132 is configured such that the latching claw parts 139, 139 are retracted into the insertion space parts 99, 99 against the urging force of the attaching / detaching urging means by gripping the handle parts 140, 140 from both sides, The locking receiving portions 97 and 97 are rotatable so as to be separated from the locking openings 97c and 97c.

  The guide body 126 is continuously formed in a straight line between the fixed portions 125 and 125. That is, the guide body 126 is formed along a direction intersecting (orthogonal) with respect to the ridge line 111a of the pleated filter 111.

  The dust removing body 127 is integrally formed of, for example, a synthetic resin, and the dust removing body main body 127a is located between the guide body 126. And a dust removing portion 127c that projects from the pleated filter 111.

  The dust removing body main body 127a is located across the guide body 126, and can move (slide) linearly along the guide body 126.

  The knob portion 127b is a portion that is picked when the dust removing body 127 is slid along the guide body 126.

  The dust removing unit 127c applies vibration (impact) by flipping the pleated filter 111 together with the shape holding unit 116 at the position of the ridge line 111a, and drops and removes dust (fine dust) attached to the pleated filter 111. ing.

  The lid portion 64 includes a lid-shaped cylindrical lid body 143, a widened portion 144 formed in a step shape at the lower end of the lid body 143, and a gripping portion 145 formed on the top of the lid body 143. And an exhaust port 146 opened at the rear part of the outer peripheral edge of the lid body 143.

  The lid body 143 is a portion that covers the upper side of the filter body 63, and is formed to open downward. An engagement receiving portion 148 with which the locking clamp 42 is engaged from above is recessed in the upper portion (above the exhaust port 146) of the rear portion of the lid main body 143 in the left-right direction. The lid main body 143 defines an air passage 149 that communicates the upstream side (separation portion 91) of the filter body 63 and the exhaust port 146 with the upper portion of the filter body 63. The air passage 149 is partitioned between the fixing portions 125 and 125 of the dust removing mechanism 113 of the filter body 63. Accordingly, the attaching / detaching mechanism 132 is located outside the air passage 149, and each handle portion 140 is disposed in the recessed portion 131 located outside the air passage 149 so as to face outward, which is a direction opposite to the air passage 149. Yes.

  The expansion part 144 is formed in an expanded shape with respect to the lid body 143. Inside the widened portion 144, a seal member press contact portion 151 is formed facing downward from the upper lip portion 121a of the seal member 121 directly from above. The seal member 121 is sandwiched between the seal member pressure contact portion 151 and the upper end portion of the receiving portion 87 of the inner cylinder portion 62 on the cup portion 61 side.

  The gripping part 145 is basically for removing the dust collector 27 from the main body case 26, and can also be used when carrying the dust collector 27. The gripping part 145 is formed along the guide body 126 of the dust removing mechanism 113 and protrudes upward so as to avoid interference with the dust removing body 127.

  The exhaust port 146 is for discharging the air that has passed through the air passage 149 to the outside of the dust collector 27, and is formed, for example, in the longitudinal direction, that is, in the lateral direction. A rear portion for airtightly connecting the exhaust port 146 and the intake opening 41 by being pressed against the rear seal member 48 in a state where the dust collector 27 is attached to the main body case 26 at the peripheral portion of the exhaust port 146 A pressure contact portion 164 is formed. Further, reinforcing ribs 165 are formed in the exhaust port 146 along the vertical direction, and these ribs 165 are arranged apart from each other in the horizontal direction.

  The clamp 65 is attached to the clamp attachment portion 84 at the upper end portion of the handle 69. The clamp 65 removably locks the filter body 63 with respect to the cup portion 61, and the lid portion 64 is prevented from rotating in the circumferential direction with respect to the filter body 63 (and the cup portion 61). For example, a push operation can be performed from above with the thumb of the hand holding the handle 69.

  Next, the cleaning operation according to the embodiment will be described.

  When starting the cleaning, first, the inner cylinder portion 62, the filter body 63, and the lid portion 64 are respectively attached to the cup portion 61 and assembled integrally. At this time, the convex portion 98 of the inner cylindrical portion 62 inserted into the cup portion 61 is engaged with the positioning portion 75 of the cup portion main body 67 (cup portion 61) to prevent the cup portion 61 from rotating in the circumferential direction. Then, the outer peripheral side of the receiving portion seal member 95 is pressed against the inner peripheral surface of the cup portion 61 (cup portion main body 67), and the filter body 63 is then moved to the gripping portions 140 and 140 of the attaching / detaching mechanisms 132 and 132. While picking from both sides with H (imaginary line in FIG. 4 (a)), inserting into the receiving portion 87 of the inner cylindrical portion 62 and inserting the locking claw portions 139, 139 into the insertion space portions 99, 99, these handle portions The locking claw portions 139, 139 that have been returned and rotated by releasing 140, 140 are engaged with the locking openings 97c, 97c of the locking receiving portions 97, 97 (FIG. 4 (b)). Then, the filter body 63 is covered and the lid portion 64 is covered, and the lid portion 64 is rotated in the circumferential direction. As a result, the seal member 121 of the filter body 63 is sandwiched between the seal member pressure contact portion 151 of the lid portion 64 and the upper end portions of the cup portion 61 and the inner cylinder portion 62 (receiving portion 87).

  Next, the dust collector 27 is attached to the main body case 26. That is, the dust collector 27 is inserted so that the locking protrusion 77 is inserted into the positioning recess 43 on the main body case 26 side while the front lower portion of the dust collector 27 is brought into contact with the front end portion of the protrusion receiving portion 32. When the upper side is rotated rearward, the locking clamp 42 engages with the engagement receiving portion 148 of the dust collector 27 from above, and the dust collector 27 is fixed to the main body case 26. As a result, the pressure contact portion 82 at the periphery of the communication port 81 of the suction portion 68 is pressed from above to the lower seal member 56 at the periphery of the connection port 55, and the suction portion 68 (communication port 81) and the connection port 55 are connected in an airtight manner. At the same time, the rear pressure contact portion 164 at the periphery of the exhaust port 146 is pressed against the rear seal member 48 at the periphery of the intake opening 41 from the front, and the exhaust port 146 and the intake opening 41 are connected in an airtight manner. Note that when the dust collector 27 is already attached to the main body case 26, these operations are not necessary.

  In this state, the pipe part 12 is connected to the main body suction port 54 of the cleaner main body 13 (main body case 26). Specifically, the pipe part 12 inserts and connects the connection pipe part 15 to the main body suction port 54, and sequentially connects the extension pipe 18 and the floor brush 19 to the distal end side of the hand operation part 17 as necessary. In this state, the setting button 22 of the hand operation unit 17 is electrically connected to the control circuit unit 37 and the like in the cleaner body 13 (main body case 26). In addition, when the pipe part 12 is already connected to the cleaner body 13, these operations are unnecessary.

  Then, after the user pulls out the power cord 38 from the cord outlet 45 and connects it to an outlet such as a wall surface, the user grips the hand grip 21 and operates the desired setting button 22 to operate the electric blower 36. Set the mode. The control circuit unit 37 controls the input of the electric blower 36 corresponding to the set operation mode, and starts the electric blower 36 in the set operation mode.

  The negative pressure generated by the activation of the electric blower 36 is the intake opening 41, the exhaust port 146, the pleated filter 111, the separation unit 91, the suction port 72, the suction unit 68, the connection port 55 (communication port 81), the body side wind It acts on the pipe portion 12 via the passage portion 53 and the main body suction port. At this time, in the dust collector 27, since the inside of the separating portion 91 becomes a negative pressure with respect to the outside (outside air) of the dust collecting device 27, the seal member 121 (lower lip portion 121a) is on the separating portion 91 side ( The cup portion 61 and the inner cylinder portion 62 side) are attracted to each other and elastically deformed to be in close contact with each other, and the gap between the upper end portions of the cup portion 61 and the inner cylinder portion 62 is sealed from above. That is, the seal member 121 closes not only the gap between the cup part 61 and the inner cylinder part 62 but also the gap between the filter body 63 and the inner cylinder part 62.

  The user sucks dust together with air from the front end side of the floor brush 19, the extension pipe 18, or the hand operation unit 17 by the action of the negative pressure.

  The dust-containing air, that is, the dust-containing air, is introduced from the pipe portion 12 through the main body suction port 54, the main body side air passage portion 53, and the connection port 55 (communication port 81) from the suction portion 68 to the suction port 72. Then, it is sucked into the cup part 61 from the suction port 72.

  In the separation part 91 in the cup part 61, the dust-containing air turns around the outer periphery of the inner cylinder part body 88 along the inner peripheral surface of the cup part 61, so that particularly coarse dust in the dust-containing air is centrifuged. Then, it falls along the inner peripheral surface of the cup portion 61 and is collected in the dust reservoir 92. The dust (coarse dust) collected in the dust reservoir 92 is carried to the shade portion 89 by a part of the flow of the dust-containing air, and the dust-containing air passes through the compression opening 108 of the shade portion 89. Thus, compression is performed in the shade unit 89 by the compression filter 109.

  The dust-containing air from which the coarse dust has been separated is filtered by the separation filter 102 when passing through the opening 101 of the inner cylinder portion main body 88. Further, the dust-containing air that has passed through the separation filter 102 is conveyed to the filter body 63 while being rectified along the bottom surface 103 to the upper side, which is the downstream side. The dust-containing air passes through the pleated filter 111 of the filter body 63, so that dust (fine dust) smaller than the dust (coarse dust) separated by the separation unit 91 is collected on the surface by the pleated filter 111. Be dusted.

  Thereafter, the air that has passed through the pleated filter 111 passes through the air passage 149 between the ridges 111a and 111a of the pleated filter 111 and between the upper portion of the pleated filter 111 and the lid portion 64, and is collected from the exhaust port 146. It flows out of the dust device 27 and is sucked into the intake opening 41 that is airtightly connected to the exhaust port 146.

  Then, the air that has passed through the intake opening 41 (intake filter 49) is sucked into the electric blower 36 through the duct portion 50, passes through while cooling the inside of the electric blower 36 to become exhaust air, and the electric blower The air is exhausted from 36 to the outside of the main body case 26 through the exhaust hole 44.

  When the cleaning is completed, the user operates the predetermined setting button 22 so that the control circuit unit 37 decreases the input of the electric blower 36 and stops the electric blower 36.

  When discarding dust (fine dust) adhering to the pleated filter 111 of the filter body 63 (maintaining the pleated filter 111), the locking clamp 42 is operated to remove the dust collector 27 from the main body case 26. Then, after rotating the lid portion 64 in the circumferential direction and removing it from the dust collecting device 27, when the knob portion 127b of the dust removing mechanism 113 is picked and the dust removing body 127 is slid to the left and right along the guide body 126, the dust removing portion 127c However, the vibration (impact) is applied intermittently by flipping the pleated filter 111 together with the shape holding part 116 at the position of each ridgeline 111a, and the dust (fine dust) adhering to the pleated filter 111 is dropped and removed. Then, the filter body 63 is removed from the cup portion 61 (inner cylinder portion 62), and the cup portion 61 is taken to a disposal position such as a trash can to discard dust. When the filter body 63 is removed, the gripping portions 140 and 140 of the attachment / detachment mechanism 132 are picked so as to be sandwiched by the hands H from both sides (the imaginary line in FIG. 4A). The attachment / detachment mechanism main body 135 is rotated so as to be retracted into the insertion space 99 and the engagement between the respective locking claws 139 and the respective engagement openings 97c is disengaged (FIG. 4C), and the filter body 63 is removed. It can be pulled upward. That is, the operation of holding the filter body 63 by the handle portions 140 and 140 allows the engagement to the cup portion 61 side (inner cylinder portion 62) by the attachment / detachment mechanism 132 to be easily released without intentional operation. For the inner cylindrical portion 62 exposed by removing the filter body 63, dust attached to the inner side of the separation filter 102 or the like is removed from the communication opening 96 located at the center of the receiving portion 87, or on the receiving portion 87. It is possible to remove dust adhering to the surface.

  Further, when a certain amount of dust accumulates in the dust collecting device 27, the user operates the clamp 65 to release the locking of the filter body 63 and the inner cylinder portion 62, and these filters are removed from the cup portion 61. The body 63 and the inner cylinder part 62 are removed integrally with the lid part 64. Then, after carrying the cup part 61 holding the handle 69 to a disposal position such as a trash can, it is turned upside down so that the upper side is tilted downward. ) Is discarded from the dust outlet 71.

  According to the embodiment described above, the seal member 121 that surrounds the outside of the holding frame portion 112 that holds the pleated filter 111 is in close contact with the cup portion 61 side by the negative pressure generated by driving the electric blower 36. By closing the gap between the body 63 and the cup part 61 side, there is no need to adopt a configuration in which the seal member 121 is press-fitted into the cup part 61 or the like. Therefore, for example, as in the configuration in which the seal member is press-fitted into the cup portion to close the gap, the press-fitting load into the cup portion of the seal member is increased in advance so that it does not easily come off due to dust adhering to the seal member. There is no need, and when attaching the filter body 63 to the cup part 61 (inner cylinder part 62), it is only necessary to place it without press-fitting and to the cup part 61 side by a separate attachment / detachment mechanism 132. Since the filter body 63 is detachable, the filter body 63 can be easily attached to and detached from the cup portion 61 side.

  In addition, the attachment / detachment mechanism 132 is provided in the dust removal mechanism 113 that is essential for maintenance of the pleated filter 111, so that the filter body 63 can be made compact without complicating the structure.

  Further, since the seal member 121 is in close contact with the cup part 61 side from above, the filter body 63 is more likely to be in close contact with the cup part 61 side by its own weight.

  Since the seal member 121 has a thin plate-like lip portion 121a that is easily deformed at the portions pressed against the cup portion 61 side and the lid portion 64, the gap can be more reliably sealed by the deformation of the lip portion 121a. .

  Furthermore, since the handle part 140 for holding the filter body 63 of the attachment / detachment mechanism 132 is a release part that can release the locking of the filter body 63 to the cup part 61 side by holding, the filter part 63 is held by the handle part 140. The filter body 63 can be easily removed from the cup portion 61 side without performing a separate removal operation only by the operation to be performed.

  Moreover, since the handle portion 140 is provided in a pair at positions opposite to each other with respect to the central portion of the filter body 63, the attachment / detachment mechanism can be obtained simply by gripping the filter body 63 from both sides at the positions of the handle portions 140 and 140. The filter body 63 can be easily removed from the cup portion 61 side by operating the filter body 63 reliably, and the filter body 63 can be easily carried.

  Then, by arranging each handle portion 140 in a direction opposite to the air passage 149 passing through the pleat filter 111 and flowing to the suction side of the electric blower 36, the air flow is formed in, for example, the recess 131 around each handle portion 140. Since each handle 140 does not disturb the airflow flowing through this air passage 149, noise caused by turbulence, such as wind noise, is not generated, and silence can be further improved and Even if a slight amount of dust is contained in the air passing through the path 149, the dust does not adhere to each handle part 140, so that it does not become unsanitary when picking each handle part 140.

  In the above-described embodiment, the power supply unit may include a battery such as a secondary battery instead of the cord reel device.

  Although one embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

11 Vacuum cleaner
26 Main unit case
27 Dust collector
36 electric blower
61 Cup as storage
63 Filter body
91 Separation part
111 Pleated filter
112 Holding frame as holding part
113 Dust removal mechanism
121 Seal member
132 Detachment mechanism
140 Handle part as release part
149

Claims (4)

A body case containing an electric blower;
A dust collector provided in the main body case;
The dust collector is
An accommodating part having a separation part for separating dust in the dust-containing air sucked in by driving of the electric blower;
A filter that collects dust smaller than the dust separated by the separation unit, a holding unit that holds the filter, and a negative pressure that is provided around the outside of the holding unit and is generated by driving the electric blower A filter body having a seal member that is in close contact with the housing portion and can close a gap between the filter and the housing portion;
A dust removing mechanism provided in the filter body and capable of removing dust collected by the filter from the filter;
An electric vacuum cleaner comprising: an attachment / detachment mechanism provided in the dust removal mechanism, wherein the attachment / detachment mechanism allows the filter body to be attached / detached to / from the housing unit. The electric vacuum cleaner according to claim 1, wherein the seal member is in close contact with the housing portion side from above. The attachment / detachment mechanism includes a handle for holding the filter body,
The electric vacuum cleaner according to claim 1, wherein the handle is a release portion that can release the lock of the filter body with respect to the housing portion by holding. The electric vacuum cleaner according to claim 3, wherein the release portion is arranged in a direction opposite to the air passage that passes through the filter and flows to the suction side of the electric blower.

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