JP2017213158A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner which allows fibrous dust entangled in a dust collection part to be easily removed.SOLUTION: A vacuum cleaner includes: a body case; an electric blower housed in the body case; a housing part housing a separation part which centrifugally separates dust contained in the air sucked up by the drive of the electric blower from the air; a separation filter which makes the dust separated by the separation part pass to filter it; a cylindrical cylinder main body with an opening formed to which the separation filter is provided; and a dust removal part formed in the direction orthogonal to the flow of the dust-containing air in the cylinder main body which removes the dust adhered to the separation filter.SELECTED DRAWING: Figure 3

Description

  Embodiments described herein relate generally to a vacuum cleaner including a centrifugal separation unit that centrifuges sucked dust.

  2. Description of the Related Art Conventionally, there has been disclosed a configuration of a dust collecting unit in which an inner cylinder is provided in a cylindrical cup and dust is separated by centrifugal force.

  However, since the dust collecting part for separating dust by centrifugal force swirls dust, fiber-like dust such as hair, lint, and cotton gets tangled, so it is necessary to secure a space to remove it. There was the problem that it became one of the obstruction factors of miniaturization of the vacuum cleaner.

JP2013-52012A

  The problem to be solved by the present invention is to provide a vacuum cleaner that can easily remove fibrous dust entangled in a dust collecting portion.

  The vacuum cleaner according to the embodiment includes a main body case, an electric blower accommodated in the main body case, and a separation unit that centrifuges dust from air containing dust sucked by driving of the electric blower. An accommodating portion, a separation filter that passes and filters the dust separated by the separation portion, a cylindrical inner cylinder main body in which an opening is formed, and the separation filter is disposed in the opening, and the inner cylinder main body And a dust removing unit that is formed in a direction intersecting with the flow of the dust-containing air and that removes dust adhering to the separation filter.

It is a perspective view which the whole electric vacuum cleaner of Embodiment 1 shows. It is a perspective view which shows the main body case of the vacuum cleaner of Embodiment 1 from the front. 1 is a perspective sectional view of Embodiment 1. FIG. It is a perspective view which shows the dust collector of the vacuum cleaner of Embodiment 1 from back. It is a disassembled perspective view of the dust collector of the vacuum cleaner of Embodiment 1. It is the perspective view which expanded the principal part of FIG. 3 is a main part enlarged perspective view illustrating dust removal according to the first embodiment. FIG. 8 is a cross-sectional view taken along line AB in FIG. 7. It is sectional drawing which shows the modification 1 of the dust removal part of the vacuum cleaner of Embodiment 1. FIG. It is sectional drawing which shows the modification 2 of the dust removal part of the vacuum cleaner of Embodiment 1. It is sectional drawing which shows the modification 3 of the dust removal part of the vacuum cleaner of Embodiment 1. It is a perspective view by the side of the accommodating part of the dust collector of the vacuum cleaner of Embodiment 1. It is a disassembled perspective view of the dust collector of the vacuum cleaner of Embodiment 2.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the drawings, the same or equivalent parts are denoted by the same reference numerals.

(Embodiment 1)
FIG. 1 shows a perspective view of the entire so-called canister-type vacuum cleaner. The canister type vacuum cleaner 100 includes a pipe portion 12 that is an air passage forming body, and a cleaner body 13 to which the pipe portion 12 is detachably connected.

The pipe part 12 includes a connection pipe part 15, a hose body 16, a hand operation part 17, an extension pipe 18, and a floor brush 19.
The connecting pipe portion 15 is connected to the cleaner body 13. The hose body 16 has flexibility and communicates with the distal end side of the connecting pipe portion 15. The hand operating section 17 is provided on the distal end side of the hose body 16. The extension tube 18 is detachably connected to the distal end side of the hand operation unit 17. The floor brush 19 is detachably connected to the distal end side of the extension pipe 18 as a suction port body.

  In the hand operation part 17, a loop-like hand grip part 21 is formed so as to protrude toward the hose body 16. A plurality of setting buttons 22 for operation are provided on the upper part of the hand grip 21.

  The vacuum cleaner main body 13 includes a main body case 26 having a traveling wheel 23 that is a large-diameter wheel on both sides and a swivel wheel 24 and the like at the lower part. A dust collecting device 27 that is a dust collecting cup as a dust collecting unit is detachably attached to the upper front side that is the outside of the main body case 26.

  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.

  FIG. 2 is a perspective view of the main body case 26. The main body case 26 is made of, for example, a synthetic resin. In the main body case 26, a main body 31 and a protruding receiving portion 32 are integrally formed. The main body 31 is located behind the dust collector 27. The protrusion receiving portion 32 is a dust collecting device support portion as a mounting portion that protrudes below the front portion of the main body portion 31 and supports the lower portion of the dust collecting device 27.

  FIG. 3 is a cross-sectional perspective view of the main body case 26 with the dust collecting device 27 attached.

  The vacuum cleaner main body 13 includes a main body case 26 that has traveling wheels 23 (FIG. 1), which are large-diameter wheels, on both sides and a swivel wheel 24 and the like at the bottom. A dust collecting device 27, which is a dust collecting cup as a dust collecting unit, is attached to and detached from the upper part, which is outside the main body case 26. 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.

  The body case 26 is integrally formed of, for example, a synthetic resin. The main body case 26 has a main body portion 31 located behind the dust collector 27 and a dust collector support as a mounting portion that protrudes below the front portion of the main body portion 31 and supports the lower portion of the dust collector 27. It is comprised from the protrusion receiving part 32 which is a part.

  The traveling wheels 23 are rotatably supported on both sides of the main body 31. A handle 34 for carrying the main body case 26 protrudes above the front portion of the main body 31. 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 (FIG. 1) that can supply power to the electric blower 36 from an external power source. A cord reel device (not shown) or the like as a power supply unit wound around is accommodated.

  An intake opening 41 is formed in the front portion of the main body 31 so as to be biased upward. The intake opening 41 communicates with the suction side of the electric blower 36 and serves as an opening that is airtightly connected to the downstream side of the dust collector 27 mounted on the main body case 26. A locking clamp 42 for locking and holding the dust collector 27 is disposed on the upper surface of the main body 31 above the intake opening 41. A positioning concave portion 43 as a main body side guide portion for positioning and guiding the dust collecting device 27 is provided at the central portion in the left-right direction below the intake opening 41.

  A plurality of exhaust holes 44 communicating the exhaust side of the electric blower 36 and the outside of the main body case 26 are formed in the rear part of the main body 31. Further, a cord outlet 45 is formed at the rear portion of the main body portion 31 to communicate with the power supply chamber and the outside of the main body case 26 at the side of the exhaust hole 44 to allow the power cord 38 to be taken in and out.

  The intake opening 41 is formed long in the left-right direction and is located below the handle 34. Reinforcing ribs 47 are arranged in a lattice pattern in the intake opening 41. An elastic rear seal member 48 is disposed on the outer edge of the intake opening 41. The rear seal member 48 is formed by packing or the like for airtightly connecting to the downstream side of the dust collector 27. 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 is engaged with and held by the engagement receiving portion 148 of the dust collector 27. The locking clamp 42 is supported so as to be rotatable in the vertical direction. The locking clamp 42 is biased toward the lower side where the dust collecting device 27 is locked by a spring (not shown) as a locking portion biasing means. The locking clamp 42 is located immediately below the handle 34. The handle 34 is formed in a loop shape, for example, on the upper surface of the front portion of the main body 31.

  The protrusion receiving portion 32 is inclined downward toward the rear. A swivel 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. Inside the protrusion receiving portion 32, a linear main body side air passage portion 53 which is long and does not bend along the front-rear direction is disposed.

  A main body suction port 54 to which the connecting pipe portion 15 of the pipe portion 12 is connected is formed in the front end of the protruding receiving portion 32 at the upstream end of the main body side air passage portion 53 (FIG. 1). At the downstream end of the main body side air passage portion 53, for example, a rectangular connection port 55 is formed in front of the main body portion 31 at the rearmost portion of the upper portion of the protruding receiving portion 32. That is, 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 highest 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 on the outer edge of the connection port 55.

  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 shown in FIG. The electric blower 36 is disposed with the suction side as an upper side, for example.

  The control circuit unit 37 is electrically connected to the setting button 22, and the operation of the electric blower 36 is set to an operation mode such as strong, medium, weak, automatic, or stopped by operating the setting button 22. It is configured.

  As shown in FIGS. 3 and 4, the dust collector 27 includes a cup portion 61, an inner cylinder portion 62, a filter body 63, a lid portion 64, and a clamp 65. The cup part 61 is a dust collection part as an accommodating part. The inner cylinder part 62 is a structure as a separating part that is detachably attached to the cup part 61. The filter body 63 is configured to be detachable from the inner cylinder portion 62 as a separation main body portion. The lid part 64 is configured to be detachable from the inner cylinder part 62 by rotation. The clamp 65 detachably locks the cup part 61 and the inner cylinder part 62.

  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 of being attached to the main body case 26. Hereinafter, in the dust collector 27, the vertical direction refers to one end side and the other end side in the axial direction of the dust collector 27.

  In addition, one end side shows the upper side of the broken line L in FIG. 3, and the other end side shows the lower side of the alternate long and short dash line L. The vertical direction in the dust collector 27 is based on the vertical direction in the state of the dust collector 27 alone. The vertical direction of the dust collector 27 may not always match when attached to the main body case 26.

  FIG. 5 shows a perspective view of the dust collector 27 in an exploded state. The cup part 61 includes a cup part main body 67, a suction part 68, and a handle 69. The cup body 67 is a container body formed in a bottomed cylindrical shape. The suction part 68 is a dust collector side air passage part provided integrally with the cup body 67. The handle 69 is for carrying the dust collector 27 projecting from the cup body 67.

  The cup part main body 67 is formed of, for example, a synthetic resin having translucency. The cup portion main body 67 is configured to accumulate dust (coarse dust) in the lower portion inside. An upper end portion of the cup body 67 is a dust discharge port 71 for attaching the inner cylinder portion 62 and the like and discharging dust. 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, the 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.

  As shown in FIG. 3, the inner cylinder portion 62 is placed and locked to the upper end portion of the cup portion main body 67. On the inner peripheral side of the upper end portion of the cup body 67, as shown in FIG. 5, positioning portions 75 for positioning the inner cylindrical portion 62 in the circumferential direction are formed in concave shapes at positions facing each other in the radial direction. Yes. 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. .

  At the rear part near the upper end of the cup part body 67, a tongue-like locking protrusion 77 as a dust collector side guide part is provided at the center part in the left-right direction so as to incline downward toward the rear. Has been. The locking projection 77 is inserted into the positioning recess 43 in a state where the dust collecting device 27 is mounted on the main body case 26, and positions the dust collecting device 27 in the front / rear and left / right directions with respect to the main body case 26. The locking projection 77 guides the attaching / detaching direction of the dust collector 27 with respect to the main body case 26. The dust collector 27 is attached to and detached from the main body case 26 by rotating in the front-rear direction.

  The suction portion 68 sucks dust-containing air sucked from the main body suction port 54 through the pipe portion 12 into the cup portion 61 of the dust collector 27 through the main body side air passage portion 53 and the connection port 55. Inhaled from 72. The suction part 68 is arranged along the vertical direction along the rear part of the cup part main body 67. The suction portion 68 is configured to face the front portion of the main body portion 31 in a state where the dust collecting device 27 is attached to the protruding receiving portion 32 of the main body case 26. The upper end portion of the suction portion 68 is formed to be bent in an L shape so as to communicate with the suction port 72. The lower end portion of the suction portion 68 extends linearly downward and is opened at a position substantially equal to the lower end portion of the cup portion main body 67. A lower end portion of the suction portion 68 is a communication port 81 that is 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. A flat flange-shaped pressure contact portion 82 that protrudes from the peripheral edge of the communication port 81 and presses against the lower seal member 56 at the peripheral edge of the connection port 55 is projected.

  As shown in FIGS. 4 and 5, the handle 69 is for holding the cup portion 61 when dust is discarded from the dust discharge port 71. The handle 69 is arranged in a loop shape along the vertical direction on the side portion of the cup portion 61. The handle 69 is located close to the front part of the side part of the main body 31 in a state where the dust collector 27 is mounted on the main body case 26. The handle 69 cannot be gripped when the dust collector 27 is attached. A clamp mounting portion 84 for mounting the clamp 65 is recessed in the upper end portion of the handle 69.

  FIG. 6 shows a perspective view of a state in which a portion excluding the lid portion 64 and the cup portion 61 shown in FIG. 5 is enlarged.

  As shown in FIGS. 3 and 6, the inner cylinder part 62 includes a receiving part 87, an inner cylinder part main body 88, and a shade part 89. The receiving portion 87 is open on the upper side and is formed in a bottomed cylindrical shape as a support portion that supports the filter body 63. The inner cylinder body 88 is formed in a cylindrical shape. The shade portion 89 is formed with a covered cylindrical enlarged portion having a diameter larger than that of the inner tube portion main body 88.

  The inner cylinder part 62 is housed and arranged coaxially with the cup part 61 at the center part of the cup part 61 in a state of being mounted on the cup part 61. A separation part 91 for centrifuging dust is formed between the inner cylinder part main body 88 and the inner periphery of the cup part 61. At a position below the separating portion 91 and below the shade portion 89, a dust reservoir portion 92 for storing the dust centrifuged at the separating portion 91 is configured.

  As shown in FIGS. 5 and 6, the receiving portion 87 has a size slightly smaller than the inner diameter size of the cup portion main body 67. The receiving part 87 has a receiving part sealing member 95 as a support part sealing member attached to the outer edge of the lower end part in an annular shape. A circular communication opening 96 (FIG. 3) that communicates with the inside of the inner cylinder main body 88 is concentrically opened at the center of the receiving portion 87.

  7 shows a cutaway perspective view of the main part, and FIG. 8 shows a cross-sectional view taken along the line AB of FIG.

  Further, as shown in FIGS. 6 to 8, a groove 881 is formed in the vertical direction in the outer peripheral vertical direction of the inner cylinder body 88. The outer periphery of the inner cylinder main body 88 is entangled with dust D in the form of fibers such as hair, lint, and cotton. The groove 881 serves as a dust removing unit that facilitates the removal of the fibrous dust D by making it easy to enter the cutting edge of the cutting tool S such as scissors or a cutter knife against dust that is difficult to remove.

  FIGS. 9A to 9C show modified examples 1 to 3 of the dust removing unit for easily entering the cutting edge of the cutting tool S. FIG.

  In Modification 1 of FIG. 9A, projections 882 are formed in the longitudinal direction of the outer surface of the inner cylindrical body 88 instead of the grooves 881. The cutting tool S can remove the fibrous dust D by being applied to the gap between the protrusion 882 and the corner portion near the base of the inner cylinder main body 88.

  9B includes a first protrusion 883a and a second protrusion 883b that are parallel to the longitudinal direction of the outer surface of the inner cylinder portion main body 88, and a groove 884 is formed between the first protrusion 883a and the second protrusion 883b. Has been. The cutting tool S can remove the fibrous dust D by sliding on the groove 884.

  The height of the first protrusion 883a on the windward side may be lower than the height of the second protrusion 883b on the leeward side. In this case, the air blowing including dust first hits the low first protrusion 883a and then hits the high second protrusion 883b. For this reason, wind noise can be reduced as compared with the case where there is a sudden high protrusion.

  In Modification 3 of FIG. 9C, protrusions 885 are formed in the outer peripheral vertical direction of the inner cylinder portion main body 88. The protrusion 885 is formed with an inclined surface 885a that gradually increases from the windward side where dust is blown. The fibrous dust D can be removed by applying it to the gap between the protrusion 885 and the corner portion near the leeward base of the inner cylinder portion main body 88. The protrusion 885 of Modification 3 is formed with an inclined surface 885a that gradually increases from the windward side. In other words, the inclined surface 885a of the protrusion 885 has a structure that is difficult to receive wind pressure with respect to the air flow indicated by the white arrow, which contributes to reduction of wind noise generated by the wind pressure.

  In FIGS. 9A to 9C of the first to third modifications, the fibrous dust D can be removed by forming a groove or a gap in a part of the inner cylindrical portion main body 88 and sliding the cutting tool S through the groove or the gap. .

  FIG. 10 is a perspective view of the dust collection device 27 on the side of the accommodating portion.

  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. 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 toward the center side of the inner cylinder portion 62, and an inner wall portion 97b connecting the side wall portions 97a and 97a. It is formed in a U-shape when viewed. Therefore, an insertion space portion 99 is formed between the latch receiving portion 97 and the inner peripheral surface of the receiving portion 87. A locking opening 97 c for locking the filter body 63 is opened in the inner wall portion 97 b of these locking receiving portions 97.

  The inner cylinder 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 body 88 so as to penetrate in the radial direction, and the entire opening 101 is covered with the separation filter 102. The lower end portion of the inner cylinder portion main body 88 is closed by the bottom surface portion 103.

  As shown in FIG. 6, the shade portion 89 compresses dust using a negative pressure generated by driving the electric blower 36. The shade portion 89 is enlarged in diameter from the peripheral edge of the lower end portion of the inner cylinder portion main body 88, protrudes downward, opens downward, and is positioned at the lower end of the inner cylinder portion 62 (FIG. 3). 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. In the upper part of the shade portion 89, a plurality of compression openings 108 are opened at substantially equal intervals in the circumferential direction. The compression opening 108 is covered with a compression filter 109. The shade part 89 is spaced upward from the bottom part of the cup part 61.

  The filter body 63 includes a pleated filter 111 that is a filter, a holding frame portion 112 as a holding portion that holds the pleated filter 111, and a dust removal mechanism 113 provided in the holding frame portion 112. The filter body 63 has a flat disk shape as a whole, and can be attached to and detached from the receiving portion 87 of the inner cylinder portion 62.

  The pleated filter 111 collects dust that could not be separated by the separation unit 91 (FIG. 3), that is, dust (fine dust) smaller than the dust separated by the separation unit 91. The pleated filter 111 is formed, for example, by bending a nonwoven fabric or the like into a pleated shape (a bowl shape). In the pleated filter 111, a large number of creases, that is, ridge lines 111a are formed linearly along a predetermined direction, and are parallel to each other. The pleat filter 111 is bent so that the ridge lines 111a are alternately positioned in the up and down direction, which is the upstream and downstream direction of the wind passing through the pleat filter 111.

  The holding frame portion 112 is integrally formed of, for example, a synthetic resin. The holding frame portion 112 includes a 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 a shape holding portion 116 that holds the shape of the pleated filter 111.

  As shown in FIG. 6, in the holding frame portion main body 115, installation portions 118 are respectively installed at positions facing each other in the radial direction of the inner periphery. The installation part 118 is for installing the dust removal mechanism 113, and is integrally formed in a direction along the ridge line 111 a of the pleated filter 111. At both end portions of the installation portion 118, lid portion guide portions 119 and 119 are provided so as to project the lid portion 64 so as to be rotatable in the circumferential direction and prevent the lid portion 64 from coming off along the axial direction. On the outer peripheral edge of the holding frame main body 115, a seal attachment portion 115a into which the seal member 121 is integrally insert-molded is protruded along the radial direction.

  The seal member 121 is formed of synthetic resin such as rubber or elastomer having flexibility and elasticity. The seal member 121 surrounds the outside of the holding frame portion 112 and covers a seal mounting portion 115a of the holding frame portion main body 115 in a U shape along the outer periphery of the holding frame portion 112 in the upper and lower sides and the outer periphery. It is formed in a band shape. The seal member 121 has thin plate-like easily deformable lip portions 121a and 121a extending at both upper and lower ends.

  As shown in FIGS. 5 and 6, as long as the seal member 121 covers at least a portion facing the cup portion 61 and the lid portion 64 in a planar shape, a part of the outer periphery of the seal attachment portion 115 a is the seal member 121. You may expose from an outer peripheral surface. The lip part 121 a located on the lower side of the seal member 121 is directly overlapped with the cup part 61 side, the cup part 61 and the upper end part of the inner cylinder part 62. The seal member 121 is adsorbed from above by the negative pressure generated by driving the electric blower 36 and closes the gap. The seal member 121 is not pressed into the cup portion 61. The outer diameter of the seal member 121 is set to a predetermined value larger than the outer diameters of the cup portion 61 and the receiving portion 87 of the inner cylinder portion 62. In addition, although the cup part 61 side includes members, such as the inner cylinder part 62 fixed to the cup part 61, the cup part 61 itself may be sufficient, for example.

  The shape holding portion 116 is integrally formed at a 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 111 a of the pleated filter 111.

  The dust removal mechanism 113 removes dust collected by the pleated filter 111. The dust removal mechanism 113 includes fixed portions 125 and 125, a rail 126, and a dust remover 127.

  The fixing portions 125 and 125 are fixed so as to face each other on the installation portions 118 and 118 of the holding frame main body 115. The rail 126 is disposed between the fixed portions 125 and 125 and is formed in a linearly continuous shape. The dust removing body 127 is slidably disposed along the rail 126. The dust removing mechanism 113 is symmetrical with respect to the center line of the filter body 63, and in this embodiment, is disposed 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. A concave portion 131 is provided on the anti-pleat filter 111 side, which is the outer surface of each fixed portion 125. An attachment / detachment mechanism 132 for detachably locking the filter body 63 to the inner cylinder portion 62 is attached to the recess 131.

  Each attachment / detachment mechanism 132 includes an attachment / detachment mechanism main body 135 and attachment / detachment urging means. The attachment / detachment mechanism main body 135 is pivotally supported with respect to each fixing portion 125 so as to be rotatable along the radial direction of the filter body 63. The attachment / detachment urging means uses a torsion spring or the like that urges the attachment / detachment mechanism main body 135 in the rotational direction, although not shown. 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.

  As shown in FIG. 10, each attachment / detachment mechanism main body 135 is integrally provided with a locking claw portion 139 and a handle portion 140. The locking claw portion 139 is positioned at the lower end portion of the attachment / detachment mechanism main body 135 and is inserted into each insertion space portion 99 of the inner cylinder portion 62 to be locked to the locking opening portion 97c of each locking receiving portion 97. The The handle part 140 is a release part as an operation part located at the upper end part of the attachment / detachment mechanism main body 135.

  As shown in FIGS. 5, 6, and 11, each attachment / detachment mechanism 132 has the latching claw parts 139 and 139 against the urging force of the attachment / detachment urging means by gripping the handle parts 140 and 140 from both sides. It is retractable in the insertion space portions 99, 99, and is rotatable so as to be separated from the locking openings 97c, 97c of the locking receiving portions 97, 97.

  The rail 126 continuously formed in a straight line between the fixing portions 125 and 125 is formed along a direction intersecting the ridge line 111a of the pleated filter 111.

  The dust remover 127 is integrally formed of, for example, a synthetic resin, and protrudes from the dust remover main body 127a located across the rail 126, the knob 127b formed on the upper portion of the dust remover main body 127a, and the lower portion of the dust remover main body 127a. And a dust removing portion 127c for flipping the pleated filter 111.

  The dust removing portion 127c plays a role of protruding from the lower portion of the dust removing body main body 127a to play the pleated filter 111 and to remove dust attached to the pleated filter 111. The dust removing portion 127c is, for example, a resin molded product, and is integrally formed with the dust removing body main body 127a at, for example, two places across the rail 126. The dust removing portion 127 c has an L shape that elastically contacts the pleated filter 111. The dust removing portion 127c may be an S-shape in addition to an L-shape, and may be any structure that can elastically contact the pleated filter 111.

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

  The lid portion 64 includes a lid-covered 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 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 that is directly pressed from above to the upper lip portion 121a of the seal member 121 is formed downward. 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 portion 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 grip portion 145 is formed along the rail 126 of the dust removal mechanism 113 and protrudes upward so as to avoid interference with the dust remover 127.

  As shown in FIG. 4, 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 peripheral portion of the exhaust port 146 is pressed against the rear seal member 48 in a state where the dust collector 27 is mounted on the main body case 26. A rear pressure contact portion 164 for airtightly connecting the exhaust port 146 and the intake opening 41 is formed at the peripheral portion of the exhaust port 146. 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.

  As shown in FIGS. 4 and 5, the clamp 65 is attached to a clamp attaching portion 84 at the upper end portion of the handle 69. The clamp 65 detachably locks the filter body 63 with respect to the cup portion 61. The clamp 65 prevents the lid portion 64 from rotating in the circumferential direction with respect to the filter body 63 and the cup portion 61, and can be pushed from above with the thumb of the hand holding the handle 69, for example.

  Next, the cleaning operation will be described.

  When cleaning is started, first, the inner cylinder part 62, the filter body 63, and the lid part 64 are respectively attached to the cup part 61 and assembled integrally.

  At this time, the convex part 98 of the inner cylinder part 62 inserted in the cup part 61 is engaged with the positioning part 75 of the cup part main body 67, and is positioned and fixed in a state where it is prevented from rotating in the circumferential direction with respect to the cup part 61. The outer peripheral side of the receiving portion seal member 95 is pressed against the inner peripheral surface of the cup portion main body 67. Next, the filter body 63 is inserted into the receiving portion 87 of the inner cylinder portion 62 while gripping the handle portions 140, 140 of the attaching / detaching mechanisms 132, 132 from both sides. The locking claws 139 and 139 are inserted into the insertion spaces 99 and 99. The latching claw portions 139 and 139 rotated and returned by releasing the handle portions 140 and 140 are engaged with the latching opening portions 97c and 97c of the latch receiving portions 97 and 97, respectively. After locking with the inner cylinder part 62, the filter body 63 is covered, the cover part 64 is covered, and the cover part 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 receiving portion 87 of the cup portion 61 and the inner cylinder portion 62.

  Next, the dust collector 27 is attached to the main body case 26. The locking projection 77 is inserted while being aligned with 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 of the protrusion receiving portion 32. When the upper side of the dust collector 27 is rotated rearward, the locking clamp 42 is engaged 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 press-contact portion 82 at the periphery of the communication port 81 of the suction portion 68 is pressed into contact with the lower seal member 56 at the periphery of the connection port 55 from above to connect the communication port 81 and the connection port 55 of the suction portion 68 in an airtight manner. . 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 to connect the exhaust port 146 and the intake opening 41 in an airtight manner. In addition, when the dust collector 27 is already attached to the main body case 26, these operations are unnecessary.

  In this state, the pipe portion 12 is connected to the main body suction port 54 of the main body case 26. Specifically, the pipe part 12 inserts and connects the connection pipe part 15 to the main body suction port 54. If necessary, the extension pipe 18 and the floor brush 19 are sequentially connected to the distal end side of the hand operation unit 17. 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 main body case 26. In addition, when the pipe part 12 is already connected to the cleaner body 13, these operations are not necessary.

  Then, the user pulls out the power cord 38 from the cord outlet 45 and connects it to an outlet such as a wall surface. Thereafter, the operation mode of the electric blower 36 is set by holding the hand grip 21 and operating a desired setting button 22. 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 includes 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 communication port 81, the main body side air passage unit 53, and the main body. It acts on the pipe part 12 through the suction port 54.

  In the dust collector 27, the inside of the separation unit 91 becomes negative pressure with respect to the outside air of the dust collector 27. The lip portion 121a of the seal member 121 is sucked toward the separating portion 91 and is brought into close contact while being elastically deformed. The gap between the upper end portions of the cup portion 61 and the inner cylinder portion 62 is sealed from above. 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 air containing dust is guided from the suction portion 68 to the suction port 72 through the tube portion 12 through the main body suction port 54, the main body side air passage portion 53 and the communication port 81. Further, the dust-containing air is sucked into the cup portion 61 from the suction port 72.

  The dust-containing air in the separation part 91 in the cup part 61 swirls around the outer periphery of the inner cylinder part main body 88 along the inner peripheral surface of the cup part 61. In particular, coarse dust in the air containing dust is centrifuged. The separated coarse dust falls along the inner peripheral surface of the cup portion 61 and accumulates in the dust reservoir 92. The coarse dust accumulated in the dust reservoir 92 is carried to the shade part 89 by a part of the flow of dust-containing air. The dust-containing air is compressed in the shade portion 89 by the compression filter 109 by passing through the compression opening 108 of the shade portion 89.

  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. The dust-containing air that has passed through the separation filter 102 is conveyed along the bottom surface 103 to the filter body 63 while being rectified to the upper side that is the downstream side. This dust-containing air passes through the pleated filter 111 of the filter body 63. The dust-containing air that has passed through the pleated filter 111 collects dust (fine dust) that is smaller than the dust (coarse dust) separated by the separation unit 91 on the surface.

  The air that has passed through the pleated filter 111 passes through the air path 149 between the ridge lines 111 a and 111 a of the pleated filter 111 and between the upper portion of the pleated filter 111 and the lid portion 64. The air further flows out from the exhaust port 146 to the outside of the dust collector 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 is sucked into the electric blower 36 through the duct portion 50. The sucked air becomes exhaust air while cooling the inside of the electric blower 36, and is exhausted from the electric blower 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, and the control circuit unit 37 reduces the input of the electric blower 36 and stops the electric blower 36.

  Next, maintenance of the pleat filter 111 that discards dust attached to the pleat filter 111 will be described.

  When maintaining the pleated filter 111, the dust collector 27 is removed from the main body case 26 by operating the locking clamp 42. The lid 64 is rotated in the circumferential direction and removed from the dust collector 27. The knob 127 b of the dust removing mechanism 113 is picked and the dust removing body 127 is slid left and right along the rail 126. The dust removing portion 127c intermittently applies vibration (impact) by flipping the pleated filter 111 together with the shape holding portion 116 at the position of each ridgeline 111a. The vibration drops and removes dust (fine dust) adhering to the pleated filter 111. And the filter body 63 is removed from the inner cylinder part 62, the cup part 61 is taken to disposal positions, such as a trash box, and dust is discarded.

  At the time of removing the filter body 63, if the handle parts 140, 140 of the attachment / detachment mechanism 132 are pinched so as to be sandwiched between the hands H from both sides, the attachment / detachment mechanism main body 135 so that the respective locking claws 139 are retracted into the respective insertion spaces 99. Rotate. By this rotation, the engagement between the respective locking claws 139 and the respective locking openings 97c is released, and the filter body 63 can be pulled upward.

  That is, the operation of holding the filter body 63 with the handle portions 140 and 140 allows the engagement with the 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 inside 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.

  When a certain amount of dust accumulates in the dust collector 27, the user operates the clamp 65 to release the locking of the filter body 63 and the inner cylinder portion 62, and these filter bodies 63 are released from the cup portion 61. And the inner cylinder part 62 is removed with the cover part 64 integrally. Then, after carrying the cup portion 61 holding the handle 69 to a disposal position such as a trash box, the upper portion is turned over so that the upper side is inclined downward, so that dust (coarse dust) accumulated in the dust reservoir portion 92 is compressed. ) Is discarded from the dust outlet 71.

  Next, the removal of fibrous dust entangled with the outer periphery of the inner cylinder main body 88 when the dust-containing air turns around the outer periphery of the inner cylinder main body 88 will be described.

  As described above, the dust-containing air in the separation portion 91 in the cup portion 61 swirls around the outer periphery of the inner cylinder portion main body 88 along the inner peripheral surface of the cup portion 61. In particular, coarse dust in the air containing dust is centrifuged. The separated coarse dust falls along the inner peripheral surface of the cup portion 61 and is stored in the dust reservoir 92, but the fibrous dust is entangled with the inner cylinder main body 88. Since the entangled fibers cannot be removed by a vacuum cleaner, the user needs to remove them manually.

  The dust-containing air is blown, for example, in a left turn with respect to the inner cylinder body 88. At this time, as shown in FIG. 7, the fibrous dust D is entangled with the outer periphery of the inner cylindrical body 88 and cannot be collected in the dust reservoir 92.

  Therefore, the cutting edge of the cutting tool S is applied to the groove 881 formed in the longitudinal direction of the inner cylinder body 88. When the cutting tool S is a cutter, the fibrous dust D can be cut and removed by sliding the cutter on the groove 881. When the cutting tool S is scissors, the fibrous dust D can be cut and removed with one of the cutting edges and the other cutting edge while sliding one of the cutting edges against the groove 881.

  In this way, when removing the fibrous dust D entangled with the inner cylindrical portion main body 88, it can be removed by a simple operation without damaging the separation filter 102.

  In addition, about the removal of the fibrous dust D entangled with the inner cylinder part main body 88, it can remove similarly about FIG. 9A thru | or FIG. 9C which are the modifications 1 thru | or 3 of a dust removal part. 9A, the fibrous dust D is removed while the cutting edge of the cutting tool S is applied to the corner portion near the base of the protrusion 882 and the inner cylindrical portion main body 88. 9B, the fibrous dust D is removed while applying the cutting edge of the cutting tool S to the groove 884. 9C, the fibrous dust D is removed while the cutting edge of the cutting tool S is applied to the corner portion near the base of the protrusion 885 and the inner cylindrical portion main body 88.

  Since this embodiment can be removed while applying a cutting tool to the dust removing portion at the time of removing fibrous dust entangled with the inner cylinder main body, it is possible to shorten the work time required for dust removal. In addition, the dust removing unit contributes to preventing damage to the separation filter disposed in the vicinity of the inner cylinder main body during the dust removing operation.

(Embodiment 2)
FIG. 11 is an exploded perspective view of a part corresponding to FIG. 6 of the dust collector of the electric vacuum cleaner according to the second embodiment.

  A plurality of compression openings 108 opened at substantially equal intervals in the circumferential direction at the upper part of the shade portion 89 of this embodiment are formed so as to be inclined downward toward the outer peripheral side. An angle θ1 between the compression opening 108 and the inner cylinder main body 88 shown in FIG. 5 is formed to be about 90 degrees. On the other hand, the angle θ2 between the compression opening 108 and the inner cylindrical portion main body 88 shown in FIG. 11 is formed to be 90 degrees or more. The angle θ2 is, for example, 110 degrees.

  The inner cylinder part main body 88 is formed with a dust removing part for removing the fibrous dust D entangled with the inner cylinder part main body 88 in the vertical direction. As a specific example of the dust removing portion, the shape shown in the groove 881 and the first to third modifications is used.

  The angle between the compression opening 108 and the inner cylinder portion main body 88 was increased from θ1 to θ2. This expansion can secure a wide working space for removing the fibrous dust D entangled with the inner cylinder portion main body 88. As shown in FIG. 11, in the case of θ1 with respect to the groove 881, the horizontal cutting tool S indicated by a broken line is used, and in the case of θ2, the cutting tool S is inclined by a solid line. In the case of θ2, the work space is widened compared to θ1, and the removal work of the fibrous dust is easy.

  In this embodiment, the work time for removing the fibrous dust can be shortened by extending the working space for removing the fibrous dust. The expansion of the work space also contributes to preventing damage to the separation filter installed in the vicinity during the fiber dust removal work.

  The present invention is not limited to the above-described embodiment. For example, you may form a dust removal part in different height with respect to the inner cylinder part main body 88 which is different in the circumferential direction. In this case, the entire height of the inner cylinder portion main body 88 can be covered by the plurality of dust removing portions.

  Moreover, you may attach soft members, such as rubber | gum, for example to the upper surface of a dust removal part. In this case, the elastic action by the soft member makes it easier to put a cutting tool between the fibrous dust and the dust removing part, which contributes to an improvement in work.

  Although several embodiments have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, combinations, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 100 Vacuum cleaner 26 Main body case 27 Dust collector 36 Electric blower 61 Cup part 63 Filter body 111 Pleated filter 113 Dust removal mechanism 127 Dust removal body 145 Holding part 101 Opening 102 Separation filter 108 Compression opening 109 Compression filter 88 Inner cylinder main part 881 , 884 Groove 882, 885 Protrusion 883a First protrusion 883b Second protrusion
885a Inclined surface D Fibrous dust S Cutting tool

Claims (7)

A body case,
An electric blower housed in the body case;
An accommodating part having a separation part for centrifuging the dust from the air containing the dust sucked by the driving of the electric blower;
A separation filter that passes and filters the dust separated by the separation unit;
A cylindrical inner cylinder body in which an opening is formed, and the separation filter is disposed in the opening;
A dust removing portion that is formed in a direction intersecting with the flow of dust-containing air in the inner cylindrical body, and that removes dust attached to the separation filter;
With a vacuum cleaner.   The electric vacuum cleaner according to claim 1, wherein the dust removing portion is a protrusion formed on an outer peripheral surface of the inner cylinder main body.   The vacuum cleaner according to claim 1, wherein the dust removing portion is a groove formed in the inner cylinder main body.   The vacuum cleaner according to claim 1, wherein the dust removing portion is a groove formed between first and second protrusions formed in parallel to the inner cylinder main body.   The vacuum cleaner according to any one of claims 2 to 4, wherein the dust removing portion is divided into a plurality of inner cylinder portions having different heights and positions.   The vacuum cleaner according to claim 2, wherein the protrusion forms an inclined portion that gradually increases from the windward side of the air containing dust.   The electric vacuum cleaner according to claim 4, wherein when the first projection is on the windward side through which air containing dust flows, the vacuum is lower than the second projection located on the leeward side.

Images