Electric dust collector

Abstract

Provided is an electric dust collector capable of discarding a dust collection bag without staining hands. The electric dust collector is provided with a suction part which sucks air containing dust from a suction port and a dust collection part which can be internally provided with a dust collection bag with a mounting plate, the dust collection part is cylindrical and is provided with a cover body which can be opened and closed at one end side in the central axis direction and a locking part, and the locking part is provided with a first clamping part and a second clamping part, the cover body and the closed cover body can be clamped and locked in a clamping and separating manner; the second clamping part can be clamped on the mounting plate of the dust collection bag in a clamping manner; an interlocking mechanism that interlocks the first locking portion and the second locking portion; and an operation unit that operates so as to actuate the linkage mechanism. The linkage mechanism links a first operation in which the first locking part is separated from the cover body and a second operation in which the second locking part is separated from the mounting plate.

Description

Technical Field

[0001] The invention relates to an electric vacuum cleaner. Background Art

[0002] As a conventional electric vacuum cleaner, Japanese Patent Application Laid-Open No. 8-126597 discloses a canister-type electric vacuum cleaner that captures dust in a breathable dust collecting bag placed in a dust collecting chamber of a vacuum cleaner body.

[0003] In addition, Japanese Patent Publication No. 2022-509096 discloses a stick-type electric vacuum cleaner that captures dust in a breathable dust bag that is detachably disposed in a container of the vacuum cleaner body. As the dust bag, a commercially available disposable dust bag (so-called paper bag) is generally used. Summary of the invention

[0004] In the electric vacuum cleaners disclosed in Japanese Patent Application Laid-Open No. 8-126597 and Japanese Patent Application No. 2002-509096, when discarding the dust bag, the user must grab the dust bag by hand and throw it into a trash can.

[0005] One aspect of the present invention provides an electric vacuum cleaner completed in consideration of the above circumstances.

[0006] One embodiment of the present invention provides an electric vacuum cleaner, which comprises: a suction part that sucks air containing dust from a suction port; and a dust collecting part that can be provided with a dust collecting bag having a mounting plate inside, the dust collecting part is cylindrical, and has a cover body that can be opened and closed at one end side in the central axis direction, and a locking part, the locking part having: a first locking part that can be snapped and releasably locked on the closed cover body to lock; a second locking part that can be snapped and releasably locked on the mounting plate of the dust collecting bag; a linkage mechanism that links the first locking part with the second locking part; and an operating part that operates to activate the linkage mechanism. The linkage mechanism links a first action of the first locking part being detached from the cover body with a second action of the second locking part being detached from the mounting plate.

[0007] According to one embodiment of the electric vacuum cleaner of the present invention, when the dust collecting part cover is facing downward, the lock is released by the operating part of the lock part, thereby opening the cover and causing the dust bag to fall to the outside. Therefore, the user does not need to grab the dust bag by hand and discard it in a trash can. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a perspective view of the first embodiment of the electric vacuum cleaner according to the present invention as viewed obliquely from above. Figure 2 This is a cross-sectional side view of the electric vacuum cleaner according to the first embodiment as seen from the left side. Figure 3This is a perspective view of the suction portion of the electric vacuum cleaner according to the first embodiment, as seen from obliquely below. Figure 4 This is a perspective view of the dust collecting portion of the electric vacuum cleaner according to the first embodiment, as seen from obliquely above. Figure 5 This is a cross-sectional view of the dust collecting portion of the first embodiment as viewed from the left side cut along the center line. Figure 6 This is a perspective view of the dust collecting portion of the first embodiment as seen from obliquely below. Figure 7 This is a perspective view showing a state in which the cover of the dust collecting unit according to the first embodiment is opened. Fig. 8A It is a top view of the dust collecting bag set in the dust collecting portion of the first embodiment before use. Figure 8B yes Fig. 8A Left side view of the dust bag. Fig. 9 This is an explanatory diagram when a dust collecting bag is provided in the dust collecting portion of the first embodiment. Fig.10 This is a cross-sectional side view from the left side showing a state where dust is accumulated in the dust collecting bag in the dust collecting portion of the first embodiment. Fig.11 This is a perspective view showing a state in which the locking portion of the dust collecting portion according to the first embodiment is exposed to the outside. Fig.12 It is an explanatory diagram showing a locked state of the lock portion of the dust collecting portion according to the first embodiment. Fig.13 It is an explanatory diagram showing a first operation of the interlocking mechanism of the lock portion according to the first embodiment. Fig.14 It is an explanatory diagram showing a second operation of the interlocking mechanism of the lock portion according to the first embodiment. Fig.15 This is an explanatory diagram showing a state where a full dust collecting bag is discarded from the dust collecting portion of the first embodiment. Fig.16 This is a perspective view showing a state in which the locking portion of the dust collecting portion according to the second embodiment is exposed to the outside. Fig.17 Yes Fig.16 A three-dimensional view of a state in which an operating portion of a locking portion is operated. Fig.18 It is an explanatory diagram showing an electric vacuum cleaner according to a third embodiment. DETAILED DESCRIPTION

[0009] Hereinafter, the present invention will be described in further detail using the accompanying drawings. In addition, the following description is illustrative in all aspects and should not be construed as limiting the present invention.

[0010] (First Embodiment) Figure 1 1 is a perspective view of a first embodiment of the electric vacuum cleaner of the present invention viewed from above. Figure 1 As shown, the electric vacuum cleaner 1 of the first embodiment includes: a suction part 3 for sucking air containing dust from a suction port 2, a dust collecting part 4 detachably mounted on the suction part 3, and a battery 5 detachably mounted on the suction part 3. In the case of this embodiment, a case where the electric vacuum cleaner 1 can be used as a handheld type or a pole type is illustrated, and a dust collecting bag (for example, a paper bag) is provided in the dust collecting part 4. More specifically, the electric vacuum cleaner 1 includes an extension pipe and a suction port body not shown in the figure. When the suction port body is connected to the suction port 2 of the electric vacuum cleaner 1 via the extension pipe, the electric vacuum cleaner 1 can be used as a pole type, and when the suction port body is directly connected to the suction port 2, the electric vacuum cleaner 1 can be used as a handheld type.

[0011] Figure 2 2 is a cross-sectional side view of the electric vacuum cleaner according to the first embodiment as viewed from the left side. Figure 2 As shown in FIG. 1 , the suction unit 3 includes a frame 21, an electric suction machine 22 disposed in the frame 21, and an operation button unit 23 capable of operating the electric suction machine 22 to drive, stop, adjust the output, etc. Figure 2 2 shows an electric vacuum cleaner 1 in which the central axis 24 of the cylindrical dust collecting part 4 is horizontal. Figure 2 The structure of the electric vacuum cleaner 1 is described with the left side of the electric vacuum cleaner 1 being the front, the right side being the rear, the near front side being the left, the depth side being the right, the upper side being the upper side, and the lower side being the lower side. Figure 3 The front, rear, left, right, up and down directions of the structure of the electric vacuum cleaner 1 in the following drawings are based on Figure 2 Furthermore, the electric suction machine 22 is arranged at an inclination so that the front is located lower than the rear. Thus, a space is formed below the electric suction machine 22, and components such as a substrate can be arranged in the space.

[0012] Figure 3 1 is a perspective view of the suction unit 3 of the electric vacuum cleaner according to the first embodiment as viewed from below. Figure 3 As shown, the frame 21 has: a housing for accommodating the electric suction machine 22 (see Figure 2 ) of the electrical component storage portion 31, a rod-shaped portion 32 protruding forward from the upper front end of the electrical component storage portion 31, a suction cylinder portion 33 connected to the front end of the rod-shaped portion 32, a handle portion 34 provided at the rear end side of the electrical component storage portion 31, and a battery holding portion 35 provided at the lower end of the electrical component storage portion 31 and capable of holding the battery 5 in a loadable and detachable manner.

[0013] The electrical component storage section 31 of the frame 21 has an air intake port 36 on the front wall, a snap-in recess 37 below the air intake port 36, and an exhaust port 38 connected to the air intake port 36 on the right side wall. At the lower end of the suction cylinder portion 33 of the frame 21, a connection port 39 connected to the suction port 2 is provided near the boundary with the rod-shaped portion 32, a locking hook 310 is provided in front of the connection port 39, and a recess 311 is provided in the rear of the connection port 39. A gasket 39a is provided around the connection port 39. The suction cylinder portion 33 has an upper component 33a and a lower component 33b (see Figure 1-3 ). The gasket 39a is attached around the connection port 39 of the upper member 33a. Figure 2 As shown, the outer peripheral end of the pad 39a is sandwiched by the upper member 33a and the lower member 33b, and the outer peripheral end of the pad 39a is not exposed. By adopting such a structure, it is possible to prevent the user from accidentally touching the outer peripheral end of the pad 39a and causing the pad 39a to roll up. The suction cylinder portion 33 is a section between the suction port 2 and the connection port 39 through which air circulates, and air does not circulate inside the rod-shaped portion 32.

[0014] In the frame 21, the lower end portion of the suction cylinder 33, the lower end portion of the rod-shaped portion 32, and the front end portion (front wall) of the electrical component storage portion 31 are detachably held by the dust collecting portion 4 (see Figure 2 ) holding portion 312. The holding portion 312 is provided with an engaging recess 37 related to the loading and unloading of the dust collecting portion 4 relative to the holding portion 312, a locking hook 310 and a recess 311, and a connection port 39 for conveying air containing dust to the dust collecting portion 4.

[0015] Figure 4 1 is a perspective view of the dust collecting portion 4 of the electric vacuum cleaner according to the first embodiment as viewed from above. Figure 4 As shown, the dust collecting part 4 has: a cylindrical peripheral wall 41, the central axis 24 (refer to Figure 2 ) direction; a cover 42, which is provided at one end side of the peripheral wall 41 and can be opened and closed; and a locking portion 43, which is provided along the outer surface of the peripheral wall 41. The locking portion 43 is related to the opening and closing of the cover 42 and the engagement or disengagement of the dust bag. When the cover 42 is in the closed state, the closed cover 42 is equivalent to the bottom of the dust collecting portion 4.

[0016] The peripheral wall 41 includes a tube member 41a and a cover member 41b covering the upper outer surface of the tube member 41a. A portion of the locking portion 43 is covered by the cover member 41b. A plurality of locking portions 43 are provided on the upper surface of the cover member 41b along the central axis 24 (see Figure 2 ) direction, and an inlet 45 penetrating the cover member 41b and the cylinder member 41a is provided at the position of the groove 44. A sealing member 56 made of rubber is provided at the inlet 45.

[0017] Figure 5 4 is a cross-sectional view of the dust collecting portion 4 of the first embodiment cut along the center line and viewed from the left side. Figure 5 As shown, the opening end 51 provided at one end (front end) side of the peripheral wall 41 of the dust collecting portion 4 has a protruding edge 52 protruding toward one end (front end) side in the direction of the central axis 24 of the peripheral wall 41 of the dust collecting portion 4, and a retreating edge 53 retreating toward the other end (rear end) side in the direction of the central axis 24, when viewed from a direction (left-right direction) orthogonal to the central axis 24 of the peripheral wall 41 of the dust collecting portion 4. The protruding edge 52 is the upper front end portion of the groove 44 having the peripheral wall 41. The inlet 45 passes through the vicinity of the protruding edge 52 at the bottom of the groove 44 of the peripheral wall 41.

[0018] A sealing member 56 is provided at the inlet 45 of the dust collecting unit 4. The sealing member 56 is provided to maintain the sealing property of the connection portion between the suction unit 3 and the dust collecting unit 4 (see Figure 2 The sealing member 56 includes an inner sealing portion 56a installed along the periphery of the inner side (central axis 24 side) of the inlet 45; a membrane portion 56b provided at a position further outward than the inner sealing portion 56a and having radial notches; and an outer sealing portion 56c provided around the membrane portion 56b (see Figure 5 , Fig.11 The inner sealing portion 56a and the dust collecting bag 81 (see Fig. 8A ) is in contact with the surrounding part of the air inlet 83 of the mounting plate 82 to maintain the airtightness in the dust bag 81. The membrane portion 56b prevents the dust accumulated in the dust bag 81 from leaking out from the inlet 45. The outer sealing portion 56c is in contact with the cylindrical inlet forming portion 57 (see Figure 4 )touch.

[0019] The opening end 51 of the peripheral wall 41 crosses the central axis 24 obliquely, and the cover body 42 in a state where the opening end 51 is closed also crosses the central axis 24 obliquely (see Figure 2 ).like Figure 5 As shown, when viewed from the left side (the direction of observing the cross section), the opening end 51 crosses the central axis 24 obliquely so as to make the angle formed with the protruding edge 52 an acute angle. The first locking portion 58 of the locking portion 43 is provided on the protruding edge 52, and the cover body 42 is mounted on the receding edge 53 via the hinge portion 55. The inclination of the opening end 51 is such that the hinge portion 55 provided on the receding edge 53 is located slightly offset to the rear than directly below the inlet 45. A locking recess 59 is provided at the end of the cover body 42 on the opposite side to the hinge portion 55, and the first locking portion 58 is locked with the locking recess 59 of the closed cover body 42 (refer to Figure 4 ). In addition, Figure 4In the embodiment, although the cover 42 is kept closed, the first locking portion 58 is locked on the locking recess 59 (refer to Fig.12 ) and the state in which the locking recess 59 is disengaged by moving upward (refer to Fig.13 )both of which are shown.

[0020] The opening end 51 is not at a right angle to the central axis 24 but crosses obliquely, thereby reducing the opening size of the opening end 51 in the vertical direction and increasing the opening area of ​​the opening end 51. As a result, the inside of the peripheral wall 41 becomes easy to see, and the user's hand can easily enter the opening end 51, and the dust bag can be easily set at the dust bag setting position (the position of the recessed portion 73) in the peripheral wall 41, which improves convenience. In addition, even if the opening size of the opening end 51 in the vertical direction is small, the opening end 51 can be opened widely, so even if the dust bag is greatly expanded due to dust accumulation, it can be easily removed from the peripheral wall 41.

[0021] like Figure 5 As shown, in the case of the present embodiment, when viewed from the left side (the direction of observing the cross section), the exhaust opening 61 is inclined in the same direction as the opening end 51 and obliquely intersects with the central axis 24, but the inclination of the exhaust opening 61 is closer to a right angle with respect to the central axis 24 than the inclination of the opening end 51. In addition, in the peripheral wall 41 of the dust collecting section 4, the length L1 in the direction of the central axis 24 from the protruding edge 52 on the cover body 42 side to the end on the exhaust opening 61 side is longer than the length L2 in the direction of the central axis 24 from the receding edge 53 on the cover body 42 side to the end on the exhaust opening 61 side. The inclination of the opening end 51 and the length L1 being longer than the length L2 are based on the expansion method of the dust collecting bag provided in the dust collecting section 4. This will be described in detail later.

[0022] Figure 6 This is a three-dimensional view of the dust collecting portion of the first embodiment as viewed from obliquely below. Figure 6 As shown, an exhaust opening 61 is provided at the rear end of the peripheral wall 41 of the dust collecting portion 4 in the direction of the central axis 24 .

[0023] A hinge portion 55 is provided on the lower surface (recessed edge portion 53) of the peripheral wall 41 on the opposite side of the exhaust opening 61, and can connect the cover body 42 to the peripheral wall 41 so that it can be opened and closed. A locking mechanism 66 and a surrounding wall 67 covering the locking mechanism 66 are provided on the lower surface of the peripheral wall 41 on the exhaust opening 61 side. The locking mechanism 66 includes a pair of locking claws 63, a lock release lever 64, and a force applying member 65 (see Figure 5). A pair of locking claws 63 protrude outward from a pair of holes provided on the end surface of the surrounding wall 67 on the exhaust opening 61 side. The pair of locking claws 63 are urged by a force applying member 65 (e.g., a compression spring) in the surrounding wall 67 to protrude in an outer direction substantially parallel to the central axis 24 (outer direction of the surrounding wall 67). The pair of locking claws 63 are connected to the lock release lever 64, and by pulling the lock release lever 64 to the side opposite to the direction in which the locking claws 63 protrude outward, the pair of locking claws 63 overcome the force of the force applying member 65 and retract into the interior of the surrounding wall 67.

[0024] Figure 7 4 is a perspective view showing a state where the cover 42 of the dust collecting unit 4 of the first embodiment is opened. Figure 7 As shown, the opening end 51 of the peripheral wall 41 opposite to the exhaust opening 61 is opened or closed by the cover 42. A packing 71 is provided at the outer peripheral end of the cover 42 in contact with the opening end 51 of the peripheral wall 41.

[0025] exist Figure 7 , a state is shown in which a pair of second stopper portions 72 of the locking portion 43 penetrates the peripheral wall 41 and is stopped on the mounting plate 82 of the dust bag placed in the peripheral wall 41. Figure 7 The bag body of the dust collecting bag is omitted in the figure. The structure of the locking portion 43 will be described in detail later.

[0026] The inner surface of the back side of the groove 44 of the peripheral wall 41 is formed into a shallow rectangular recess 73 for mounting the mounting plate 82 of the dust bag. A positioning rib 74 is provided at the rear end of the recess 73 for positioning the mounting plate 82. The positioning rib 74 receives the rear end 82a of the mounting plate 82 (see Fig. 8A ) and positioned in the recess 73.

[0027] like Figure 7 As shown, a plurality of ribs 75 extending in a direction substantially parallel to the central axis 24 of the peripheral wall 41 are provided on the inner surface of the peripheral wall 41. The plurality of ribs 75 extend from the periphery of the exhaust opening 61 along the inner surface of the peripheral wall 41 in a direction substantially parallel to the central axis 24, and are formed into a substantially right triangle whose height increases as it moves from the opening end 51 side toward the exhaust opening 61 side.

[0028] In addition, a first piece 76 that can rotate in the up-down direction is provided at the front position on the left side of the recess 73, and a second piece 77 that can abut against the first piece 76 is provided on the inner surface of the cover body 42. The first piece 76 is a rod-shaped or plate-shaped component. The dust bag is placed in the dust collecting part 4, and the front end (front end surface) of the first piece 76 faces forward when the mounting plate 82 is locked and positioned by the second locking part 72. The first piece 76 is forced to the lower side (mounting plate 82 side) by a force-applying component (for example, a torsion coil spring) not shown in the figure, and when the dust bag is not set in the dust collecting part 4, the front end (front end surface) of the first piece 76 faces forward and obliquely downward. In this way, the first piece 76 can rotate around the axis not shown in the figure. When the dust bag is not placed in the dust collecting part 4, if the cover body 42 is to be closed, the second piece 77 abuts against the front end (front end surface) of the first piece 76 without being closed. Thus, the user can recognize that the dust bag has been forgotten to be set. When the dust bag is set in the dust collecting part 4, the first piece 76 pressed by the mounting plate 82 moves to the upper side, so even if the cover 42 is closed, the second piece 77 does not collide with the first piece 76. Therefore, the cover 42 can be closed. Figure 7 The middle figure shows the first piece 76 in its entirety. However, since the first piece 76 pressed by the mounting plate 82 moves upward, the first piece 76 is not visible except for the front end (lower end). Figure 7 For easy understanding, the state in which the first piece 76 is moved downward is shown.

[0029] Fig. 8A 1 is a plan view of the dust collecting bag 81 before use, which is set in the dust collecting part 4 of the electric vacuum cleaner according to the first embodiment. Figure 8B yes Fig. 8A Left side view of the dust bag. Fig. 8A and Figure 8B As shown, it is arranged in the dust collecting part 4 (refer to Figure 7 ) is in a folded state before use. The dust bag 81 includes a bag body 85 having an opening 84 and a mounting plate 82 provided at the opening 84 of the bag body 85.

[0030] The bag body 85 is formed into a bag shape by an air-permeable material such as paper, woven fabric, non-woven fabric, etc. The mounting plate 82 is formed by hard paper, resin, etc., and has an air intake hole 83 connected to the opening 84 of the bag body 85. In the folded state, when viewed from the side of the mounting plate 82, the bag body 85 is a roughly rectangular shape in which the dimension L3 in one direction is larger than the dimension L4 in the direction orthogonal to the one direction. The mounting plate 82 is arranged on the surface of the roughly rectangular shape (the surface with the opening 84). The opening 84 of the bag body 85 is arranged on one end side of the center of the longitudinal direction parallel to one direction of the bag body 85. In addition, as the capacity of the dust bag 81, it is preferred that the capacity be able to collect dust for at least 30 days of one day's garbage based on the "Japan Electrical Manufacturers' Association (JEMA)".

[0031] The mounting plate 82 has a surface exposed to the outside and a back surface opposite to the surface, and the peripheral portion of the back surface is fixed to the peripheral portion of the opening 84 of the bag body 85 by, for example, an adhesive. The planar shape of the mounting plate 82 is a shape in which the outer periphery is partially protruding from a substantially square. The mounting plate 82 has a first protrusion 86 on one end side and a second protrusion 87 in a direction orthogonal to the long side direction of the bag body 85. In the case of the present embodiment, the first protrusion 86 in the mounting plate 82 of the dust bag 81 placed in the dust collecting section 4 is located between a pair of second stop portions 72 of the locking portion 43, and the pair of second stop portions 72 are stoppered to the front ends 86a on both sides of the first protrusion 86 (see Figure 7 ). At this time, one end side of the mounting plate 82 becomes the front end 86a, and the other end side of the mounting plate 82 becomes the rear end 82a.

[0032] Furthermore, when the mounting plate 82 is disposed in the dust collecting portion 4, the second protrusion 87 is located on the left side (see Figure 7 ). In this setting, the inclined end 87a provided on the second protrusion 87 is in sliding contact with the first piece 76, and the first piece 76 is pushed in and moved upward by sliding contact with the inclined end 87a, thereby maintaining the state of being pressed in by the second protrusion 87 of the mounting plate 82. In addition, after the mounting plate 82 is pressed into the recess 73 until the first piece 76 moves upward, if the cover body 42 is closed, the rotating second piece 77 is pressed into the front end 86a of the mounting plate 82, and the rear end 82a of the mounting plate 82 (see Fig. 8A ) moves to the position of the positioning rib 74 of the recessed portion 73. Furthermore, as described above, the second piece 77 does not abut against the first piece 76, and the cover body 42 is closed.

[0033] Fig. 9 1 is an explanatory diagram of the case where the dust bag 81 is provided in the dust collecting section 4 of the first embodiment. When the dust bag 81 is provided in the dust collecting section 4, the cover 42 side of the central axis 24 of the dust collecting section 4 is maintained in a state facing upwards (in the state where the cover 42 is opened). Fig. 9In the embodiment of the present invention, the cover 42 is in a substantially vertical state, but the center axis 24 may be inclined relative to the vertical when the cover 42 is in a state where the cover 42 is in a downward position), so that it is easy to install. At this time, since the cover 42 is configured to be opened more than 90 degrees, it can maintain a state opened by its own weight. In this state, while the other end 85a of the bag body 85 of the dust bag 81 is placed inside the peripheral wall 41, the mounting plate 82 is placed in the recess 73. At this time, if the operating portion 91 of the locking portion 43 is pressed in the direction of the arrow 92, the pair of second stop portions 72 rotate so as not to fall toward the edge side of the opening end 51 and become an obstacle. Even if the operating portion 91 is not continuously pressed, the mounting plate 82 can be easily placed in the recess 73 as follows. In this case, by pressing the pair of second stop portions 72 toward the edge side of the opening end 51 through the mounting plate 82, the mounting plate 82 is inserted into the dust collecting portion 4, so that the mounting plate 82 can be set in the recess 73. The mounting plate 82 is moved until the rear end 82a of the mounting plate 82 is embedded in the groove between the inner side of the recess 73 and the positioning rib 74. When the mounting plate 82 is pressed from the second stopper 72 to the inner side, the second stopper 72 is pushed by the mounting plate 82 and rotates. When the front end 86a of the mounting plate 82 passes over the second stopper 72, the pair of second stoppers 72 returns to the original position (stop position), and the pair of second stoppers 72 is stopped at the front end 86a of the mounting plate 82 (refer to Figure 7 ).

[0034] When the dust bag 81 is placed, the rear end 85a of the bag body 85 moves along the rib 75, whereby the other end 82a of the mounting plate 82 is away from the bag body 85, so that it is easy to visually see the other end 82a of the mounting plate 82 and the positioning rib 74. Therefore, the other end 82a of the mounting plate 82 can be easily inserted into the groove between the deep part of the recess 73 and the positioning rib 74 for installation.

[0035] Here, the flow of air during the cleaning preparation and operation of the electric vacuum cleaner of this embodiment is described. As described above, the dust bag 81 is provided in the dust collecting section 4, and after closing the cover 42, the dust collecting section 4 is mounted on the holding section 312 of the suction section 3 (see Figure 3 , Figure 6 At this time, the lower end of the holding portion 312 of the suction portion 3 is embedded in the groove 44 of the dust collecting portion 4, thereby limiting the movement of the dust collecting portion 4 relative to the holding portion 312 in the left and right directions. Figure 4 ) When the hook is hung on the locking hook 310, the exhaust opening 61 side of the dust collecting part 4 is rotated upward, so that the exhaust opening 61 side of the dust collecting part 4 approaches the air intake port 36 of the suction part 3 from the front and obliquely below.

[0036] A convex portion 32a is provided near the base of the rod-shaped portion 32 on the surface having the air inlet 36 of the frame 21 of the suction unit 3 (see Figure 3 ). In addition, a notch recess 50 is provided near the locking recess 59 of the cover 42 of the dust collecting portion 4 (see Figure 5 ). Therefore, when the dust collecting part 4 is rotated and the dust collecting part 4 is installed on the holding part 312 of the suction part 3 in a state where the notched recessed part 50 is hooked on the locking hook 310, the groove 44 on the exhaust opening 61 side of the dust collecting part 4 is embedded in the convex part 32a, and the movement of the dust collecting part 4 in the left and right directions relative to the holding part 312 is restricted. In addition, before the lower end of the holding part 312 is embedded in the groove 44 of the dust collecting part 4, since the convex part 32a is embedded in the groove 44 on the exhaust opening 61 side of the dust collecting part 4, it also serves as a guide when the lower end of the holding part 312 is embedded in the groove 44 of the dust collecting part 4. In addition, a pair of locking claws 63 on the exhaust opening 61 side of the dust collecting part 4 are engaged with a pair of engaging recessed parts 37 on the air intake port 36 side of the suction part 3 (refer to Figure 2 ). Thus, the movement of the dust collecting unit 4 in the left-right direction relative to the lower side of the holding unit 312 is restricted. In addition, when the dust collecting unit 4 is mounted on the holding unit 312, a gap is provided between the surface of the frame 21 having the air inlet 36 and the surface of the dust collecting unit 4 having the exhaust opening 61. Therefore, when the dust collecting unit 4 is mounted on the holding unit 312, if the dust collecting unit 4 is pressed toward the surface of the frame 21 having the air inlet 36 along the central axis 24, the dust collecting unit 4 can move toward the surface side of the frame 21 having the air inlet 36. By providing such a gap, the possibility of contact between the surface of the frame 21 having the air inlet 36 and the surface of the dust collecting unit 4 having the exhaust opening 61 before the installation is completed can be reduced, and the dust collecting unit 4 can be easily mounted on the holding unit 312. In addition, although not shown in the figure, marks of the same color are provided near the notch recess 50 of the cover body 42 and the stop hook 310 of the holding unit 312. Thus, when the dust collecting part 4 is mounted on the holding part 312, the user can easily understand that the notched recessed part 50 is locked with the locking hook 310. In the dust collecting part 4 mounted on the holding part 312 of the suction part 3, since the operating part 91 of the locking part 43 is hidden by the holding part 312, it cannot be pressed from the outside, and the locking hook 310 of the holding part 312 is locked to the notched recessed part 50 of the cover body 42 of the dust collecting part 4, the cover body 42 will not be accidentally opened during the operation of the electric vacuum cleaner 1. In addition, there is a gap between the first stopper 58 of the dust collecting section 4 and the lower end of the holding section 312 of the suction section 3. It is assumed that for some reason, in the dust collecting section 4 installed on the holding section 312 of the suction section 3, the operating section 91 is rotated downward, but even if the first stopper 58 is rotated upward until it contacts the lower end of the suction cylinder section 33, it becomes a structure that maintains the state in which the first stopper 58 is locked to the locking recess 59 of the closed cover 42, so the cover 42 will not open. As such a situation, for example, when the dust collecting section 4 of the suction section 3 is installed, it is assumed that a foreign object is sandwiched between the holding section 312 and the operating section 91.

[0037] By installing the dust collecting part 4 on the suction part 3, the gasket 39a of the connection port 39 of the suction part 3 contacts the protruding rib-shaped surrounding portion of the inlet 45 in the groove 44 of the dust collecting part 4, and the connection port 39 is connected to the inlet 45 (refer to Figure 2 to Figure 4 ). In addition, the gasket 36a provided at the periphery of the air inlet 36 of the suction unit 3 is in contact with the periphery of the exhaust opening 61 of the dust collecting unit 4, and the exhaust opening 61 is connected to the air inlet 36 (refer to Figure 2 , Figure 3 , Figure 6 ). In addition, Figure 2 As shown, the surface of the frame 21 having the air inlet 36 and the surface of the dust collecting part 4 having the exhaust opening 61 are respectively inclined surfaces relative to the central axis 24. At this time, the electric suction machine 22 is arranged in an inclined manner in which the front part is located lower than the rear part, so that the central axis 24 intersects with the central axis of the electric suction machine 22 near the air inlet 36. By setting it as such a configuration, it is possible to ensure that the area of ​​the air inlet 36 is large. In addition, a pre-filter not shown in the figure is provided on the air inlet 36. The pre-filter is embedded in an annular groove not shown in the figure provided on the peripheral wall of the air inlet 36. By adopting such a structure, the possibility of the pre-filter falling when the dust collecting part 4 is removed from the retaining part 312 can be reduced. In addition, the pre-filter can be retained by using a plurality of protrusions protruding from the peripheral wall of the air inlet 36 instead of the annular groove. In addition, the operating part 91 of the locking part 43 of the dust collecting part 4 is accommodated in the recess 311 of the retaining part 312 of the suction part 3. In this way, the dust collecting portion 4 is held by the holding portion 312 in a state where the operation portion 91 faces the holding portion 312 of the suction portion 3 .

[0038] exist Figure 2 In the figure, the dust bag in the dust collecting section 4 is omitted, but the case where a dust bag is provided is described. After the dust collecting section 4 provided with a dust bag is installed in the suction section 3 as described above, when the operation button section 23 is operated to drive the electric suction machine 22, a negative pressure is formed in the dust collecting section 4 to generate a suction force. Due to the suction force, the air containing dust flows into the suction cylinder section 33 from the suction port 2 of the suction section 3, and the air containing dust flows into the dust bag through the connecting port 39 and the inlet 45 of the dust collecting section 4. The dust flowing into the dust bag is captured in the bag body, and the air from which the dust is removed flows into the electrical component storage section 31 from the air intake port 36 of the suction section 3, and is discharged to the outside from the exhaust port 38 through the electric suction machine 22. At this time, since fine dust sometimes passes through the bag body, a filter can also be provided at the air intake port 36. Such fine dust may also adhere to the outer surface of the bag body, but in the electric vacuum cleaner 1 of the present embodiment, the user can discard the dust bag into a trash can without holding the dust bag by hand. This will be described in detail later.

[0039] Fig.101 is a cross-sectional side view showing a state where dust is accumulated in the dust bag 81 of the dust collecting unit 4 in the first embodiment, as viewed from the left side. When air containing dust flows into the dust bag 81, the bag body 85 expands to a certain extent. When the bag body 85 is filled with dust, as shown in FIG. Fig.10 As shown, the bag body 85 is substantially fully expanded and unfolded. At this time, since the dimension of the bag body 85 in the front-to-back direction is larger than the dimension in the left-to-right direction, the bag body 85 expands greatly in the front-to-back direction. When sucking air containing dust, the air flowing into the bag body 85 from the inlet 45 of the dust collecting part 4 through the air inlet 83 of the dust collecting bag 81 flows toward the exhaust opening 61 in the length direction of the bag body 85, for example, as shown by arrow B. In addition, the air flowing into the bag body 85 has a flow that directly collides with the inner surface of the bag body 85 opposite to the air inlet 83 of the dust collecting bag 81. Fine dust easily passes through the inner surface of the bag body 85 directly collided with by the air. Therefore, a seal without ventilation can also be provided on the outer surface of the bag body opposite to the inner surface of the bag body 85 directly collided with by the air. Thus, the penetration of fine dust can be reduced. The size of the seal is preferably an area larger than the area of ​​the air inlet 83.

[0040] Therefore, in the present embodiment, dust is easily accumulated in the space behind the air inlet 83 in the dust bag 81. Therefore, in the dust bag 81 of the present embodiment, it is ensured that the space behind the air inlet 83 is wider, and the space in front of the air inlet 83 where dust is difficult to accumulate is narrower. In addition, in the space in front of the air inlet 83 of the dust bag 81, dust is more easily accumulated in the space close to the air inlet 83 than in the space far away. Therefore, the space close to the air inlet 83 (upper space) is larger than the space far away (lower space). Therefore, according to the dust collecting section 4, in a shape along the shape of the dust bag 81 in a state after being substantially fully expanded, that is, when observed from the left side (the direction of observing the cross section), the closed cover 42 and the central axis 24 (refer to Figure 2 ) form the internal space of the dust collecting part 4 in an inclined and cross manner, thereby, it is difficult to generate a dead zone in the front lower part of the dust collecting part 4. For this reason, as in Figure 5 As described in the figure, in the peripheral wall 41 of the dust collecting section 4, the length L1 in the direction of the central axis 24 from the protruding edge 52 on the cover body 42 side to the end on the exhaust opening 61 side is longer than the length L2 in the direction of the central axis 24 from the receding edge 53 on the cover body 42 side to the end on the exhaust opening 61 side.

[0041] Fig.11 1 is a perspective view showing a state where the locking portion 43 of the dust collecting portion 4 of the first embodiment is exposed to the outside. Fig.11 FIG. 4 shows a cover member 41b of the peripheral wall 41 of the dust collecting portion 4 removed (see FIG. Figure 4The locking portion 43 includes: a first locking portion 58, which is locked and locked on the closed cover 42 in a removable manner; and a pair of second locking portions 72 (see Figure 7 ), which is locked on the mounting plate 82 of the dust bag 81 in a snap-on manner; a linkage mechanism 93, which links the first locking portion 58 and the second locking portion 72; and an operating portion 91, which operates in a manner to activate the linkage mechanism 93. The linkage mechanism 93 has a first portion 94 and a second portion 95.

[0042] Fig.12 It is an explanatory diagram showing a locked state of the lock portion 43 of the dust collecting portion 4 according to the first embodiment. Fig.13 It is an explanatory diagram showing a first operation of the interlocking mechanism 93 of the lock portion according to the first embodiment. Fig.14 It is an explanatory diagram showing the second operation of the interlocking mechanism 93 of the lock portion 43 according to the first embodiment. Figure 12 to Figure 14 The dust collecting unit 4 is shown in a posture when the dust collecting bag 81 with accumulated dust is discarded. Figure 12 to Figure 14 This is a simplified structural diagram for easy understanding of the mechanism of the linkage mechanism 93.

[0043] like Fig.12 As shown, in the linkage mechanism 93, the first portion 94 is integrated with the first stop portion 58, and the second portion 95 is integrated with a pair of second stop portions 72 (see Figure 7 The first part 94 can rotate around a first axis 96 extending in a direction perpendicular to the direction of the central axis 24 of the peripheral wall 41, and the second part 95 can rotate around a second axis 97 parallel to the first axis 96. Fig.11 As shown, the first portion 94 is located between the inlet 45 and the sealing member 56 (see Figure 4 , Fig.11 ) has a hole portion 94a at a position thereof, and a pair of left and right first pivot portions 96a are provided on the first shaft 96 on the left and right sides outside the hole portion 94a. The second shaft 97 is located slightly forward of the first shaft 96, and the second portion 95 has a pair of left and right second pivot portions 97a on the second shaft 97. In this specification, integration is not limited to a structure in which the first portion 94 and the first stop portion 58 are physically integrated, but also includes a structure in which the first portion 94 and the first stop portion 58 are connected by other components, and when the first portion 94 is moved, the first stop portion 58 moves simultaneously or approximately simultaneously. In addition, in this specification, integration is not limited to a structure in which the second portion 95 and a pair of second stop portions 72 are physically integrated, but also includes a structure in which the second portion 95 and a pair of second stop portions 72 are connected by other components, and when the second portion 95 is moved, the pair of second stop portions 72 moves simultaneously or approximately simultaneously.

[0044] like Fig.12As shown, the end of the first portion 94 opposite to the first stopper 58 is integrated with the button-shaped operating portion 91. In addition, the linkage mechanism 93 includes a Figure 5 ) and a force-applying member 98 (for example, a compression spring) between the cylinder member 41a and the operating portion 91. The second portion 95 has: a connecting portion 99, which passes through a lower portion of the hole portion 94a of the first portion 94 and is connected to a pair of left and right second pivot portions; and a pair of left and right abutment pieces 101, which are provided on the connecting portion 99. The pair of left and right abutment pieces 101 are integrated with the pair of left and right second stop portions 72. In addition, the first portion 94 has a pair of left and right action pieces 102 that can abut against the pair of left and right abutment pieces 101 of the second portion 95. In addition, as Fig.12 As shown, in the locked state, a gap X is provided between the contact piece 101 and the action piece 102 .

[0045] like Fig.12 As shown, on the cylinder member 41a, at the inlet 45 (refer to Fig.10 ) and between the inlet 45 and the cover 42, a pair of through holes 103 are provided on the left and right sides, and a sealing member 104 having radial notches is installed on the periphery of the pair of through holes 103. When the cover 42 of the dust collecting section 4 is closed, the first portion 94 of the linkage mechanism 93 is urged by the force member 98 in the direction of the operating portion 91 away from the cylinder member 41a, so that the first stopper 58 is urged in the direction of the stopper recess 59 of the cover 42. In addition, at this time, the second portion 95 is pressed against the cylinder member 41a side by the first portion 94, so that the pair of second stoppers 72 on the left and right sides protrude toward the inside of the cylinder member 41a through the notches of the sealing member 104, and are stopped on the front end 86a of the mounting plate 82 of the dust collecting bag 81 provided inside the dust collecting section 4.

[0046] The linkage mechanism 93 is configured to link a first action of disengaging the first locking portion 58 from the locking recess 59 of the cover body 42 and a second action of disengaging the pair of left and right second locking portions 72 from the mounting plate 82 of the dust bag 81. Fig.13 and Fig.14 As shown, the linkage mechanism 93 is activated. Fig.13As shown, first, if the operating part 91 is lightly pressed in the direction of the arrow 92, the first part 94 is rotated in the direction of the arrow 105 with the first shaft 96 as the center, and the first stopper 58 is disengaged from the stopper recess 59 of the cover body 42. For example, when the central axis 24 of the dust collecting part 4 is oriented in a substantially vertical direction and the cover body 42 is oriented downward, the cover body 42 is opened due to its own weight, and the opening end 51 of the dust collecting part 4 is opened. In the case of this embodiment, in the first action, the pair of action pieces 102 of the first part 94 press the pair of contact pieces 101 of the second part 95, thereby, the second part 95 is slightly rotated in the direction of the arrow 106 with the second shaft 97 as the center. At this time, due to the existence of the gap X, the second part 95 is rotated slightly later after the first part 94 starts to rotate. Therefore, the pair of second stoppers 72 connected to the second part 95 are also slightly rotated in the direction of the arrow 106, but the pair of second stoppers 72 maintain the state of being stuck on the mounting plate 82 of the dust collecting bag 81. In addition, a biasing member (not shown) for biasing in the direction of opening the cover 42 may be provided on the hinge 55. In this case, when the first locking portion 58 is disengaged from the locking recess 59 of the cover 42, the cover 42 is biased by the biasing member and opened.

[0047] like Fig.14 As shown, if the operating portion 91 is further pressed in the direction of the arrow 92, the first portion 94 is further rotated in the direction of the arrow 105 with the first shaft 96 as the center, thereby the pair of action pieces 102 of the first portion 94 further press the pair of contact pieces 101 of the second portion 95. As a result, the second portion 95 and the pair of second stopper portions 72 are further rotated in the direction of the arrow 106 with the second shaft 97 as the center, and the second action of the pair of second stopper portions 72 being separated from the mounting plate 82 of the dust bag 81 is performed. Through the second action, as shown in FIG. Fig.15 As shown, the dust bag 81 with accumulated dust naturally falls downward from the open end 51 of the dust collecting part 4 due to its own weight. Therefore, the user does not need to grab the dust bag 81 by hand and discard it, and the user's hand holding the dust bag 81 will not be soiled. Furthermore, when the pair of second stoppers 72 are detached from the mounting plate 82 of the dust bag 81, the mounting plate 82 is pushed by the first piece 76, and the mounting plate 82 moves in a direction away from the outer side of the second stoppers 72. Therefore, when it falls freely (naturally), it is difficult to contact the second stoppers 72, and it can fall smoothly.

[0048] According to the linkage mechanism 93 of the present embodiment, the first action and the second action are linked with each other in a time difference in such a manner that the second locking portion 72 is separated from the mounting plate 82 of the dust bag 81 after the first locking portion 58 is separated from the cover 42. At this time, the slight rotation of the second locking portion 72 during the first action is a preparatory action before the second action. According to the dust collecting portion 4 of the present embodiment, for example, when the central axis 24 of the dust collecting portion 4 is oriented in a substantially vertical direction and the cover 42 is oriented downward, the cover 42 is fully opened by the first action of the linkage mechanism 93, and then, the dust bag 81 falls naturally by the second action of the linkage mechanism 93, so that the dust bag 81 can be smoothly discarded without contacting the cover 42. When discarding the dust bag 81, for example, the operating portion 91 of the locking portion 43 can be pressed in a state in which the central axis 24 of the dust collecting portion 4 is oriented in a substantially horizontal direction to open the cover 42. At this time, since the hinge portion 55 is located at the lower part of the opening end 51, the cover 42 is easily opened due to its own weight. When the pressing of the operation portion 91 stops, the lock portion 43 performs an operation substantially opposite to the above operation.

[0049] In the present embodiment, the interval of the gap X between the action piece 102 of the first part 94 and the contact piece 101 of the second part 95 in the linkage mechanism 93 can also be adjusted to an interval at which the contact piece 101 and the action piece 102 do not contact each other when the first stopper 58 is separated from the stopper recess 59 of the cover body 42. In this case, since the slight rotation of the second stopper 72 during the first action can be eliminated, the time until the second stopper 72 is separated from the mounting plate 82 can be extended after the cover body 42 is opened. By adjusting the interval of the gap X in this way, the time until the second stopper 72 is separated from the mounting plate 82 after the cover body 42 is opened can be adjusted. Thus, even if the user presses the operating part 91 in the direction of the arrow 92 at once, it is possible to avoid the dust bag 81 falling and hanging on the cover body 42 before the cover body 42 is fully opened.

[0050] Furthermore, according to the electric vacuum cleaner 1 of this embodiment, Figure 2 As shown, after cleaning, the central axis 24 of the dust collecting part 4 is set to be approximately horizontal, and the electric vacuum cleaner 1 is prepared while the locking mechanism 66 is unlocked. When the dust collecting part 4 is removed from the suction part 3, the inlet 45 of the dust collecting part 4 can be removed upward. Figure 2 In the embodiment, the central axis 24 of the dust collecting section 4 is oriented in a substantially horizontal direction. However, if the inlet 45 of the dust collecting section 4 is detachable in an upwardly oriented state, the central axis 24 of the dust collecting section 4 may be inclined relative to the horizontal direction. Therefore, for example, even if the membrane portion 56b (see FIG. 5A ) of the sealing member 56 disposed on the inlet 45 of the dust collecting section 4 Figure 4 , Figure 5) is partially defective, or even if the membrane portion 56b is not provided, the dust in the dust collecting bag is difficult to leak out from the inlet 45 to the outside. In addition, after the dust collecting bag is discarded, the dust collecting portion 4 can be washed with water and kept clean.

[0051] (Second Embodiment) Fig.16 This is a perspective view showing a state in which the lock portion 107 of the dust collecting portion according to the second embodiment is exposed to the outside. Fig.17 It means operation Fig.16 A three-dimensional diagram showing the state of the operating portion of the locking portion. Fig.16 and Fig.17 In, with Fig.11 Elements that are the same as the elements in the embodiment are marked with the same reference numerals. The second embodiment is configured in the same manner as the first embodiment except that the structure of the locking portion of the dust collecting portion of the first embodiment is different. The following mainly describes the differences between the second embodiment and the first embodiment. The locking portion 107 of the dust collecting portion of the second embodiment is in a state where the operating portion 109 is not operated. Fig.16 When referring to Fig.16 Specifically, the locking portion 107 includes: a first locking portion 58, which is locked to the closed cover body 42 in a manner that allows it to be engaged and disengaged; a second locking portion (not shown), which is locked to a mounting plate of the dust bag (not shown) in a manner that allows it to be engaged and disengaged; a linkage mechanism 108, which links the first locking portion 58 and the second locking portion; and an operating portion 109, which operates in a manner that activates the linkage mechanism 108.

[0052] The linkage mechanism 108 includes: a first portion 110 that can move in the direction of the central axis 24 of the cylinder member 41a (front-rear direction), a second portion 111 that is integrated with the first stopper 58 and the second stopper (not shown), and a force-applying mechanism 112 that applies force to the operating portion 109 in the rearward direction. The first portion 110 includes a sliding portion 110a, a pivoting portion 110b that is L-shaped when viewed from above and is provided at the rear end of the sliding portion 110a, and a double-branched portion 110c provided at the front end of the sliding portion 110a. The double-branched portion 110c is formed in a double-branched shape in a manner that avoids the sealing member 56 provided at the inlet on the left and right sides. The force-applying mechanism 112 includes a connecting piece 112a that is pivotally connected rotatably around an axis in a direction orthogonal to the central axis 24 on the upper surface of the cylinder member 41a. The connecting piece 112a includes a right end portion 113a and a left end portion 113b. The connecting piece 112a can rotate around an axis provided at the center in the longitudinal direction. The connection piece 112 is provided with a pair of long holes at the right end 113 a and the left end 113 b , the long holes extending in the longitudinal direction of the connection piece 112 .

[0053] The operating portion 109 includes a button portion 109a and a retaining cylinder portion 109b that covers the button portion 109a movably in the front-to-back direction. The button portion 109a is capable of moving in the front-to-back direction along the upper surface of the cylinder member 41a, and is forced backward by a force-applying member (e.g., a compression coil spring) not shown in the figure that is disposed in the retaining cylinder portion 109b. The button portion 109a includes an operating piece 109c that extends toward the connecting piece 112 through the interior of the retaining cylinder portion 109b, and is slidably embedded in the long hole of the right end portion 113a of the connecting piece 112 via an axis disposed at the front end of the operating piece 109c in a direction orthogonal to the central axis 24. The pivoting portion 110b of the first portion 110 is slidably embedded in the long hole of the left end portion 113b of the connecting piece 112 via an axis disposed in a direction orthogonal to the central axis 24. According to this structure, the right end portion 113a of the connecting piece 112a is urged rearward, and the left end portion 113b of the connecting piece 112a is urged forward.

[0054] The second part 111 has a pair of pivot parts 111a with a left-right axis arranged at a left-right position near the front of the sealing member 56, a pair of rotating pieces 111b pivotally connected to the pair of pivot parts 111a via an axis, and a connecting part 111c connected to the pair of rotating pieces 111b. The first stopper 58 is integrated with the connecting part 111c, and a pair of second stopper parts (not shown) are integrated with the pair of rotating pieces 111b. The pair of second stopper parts are arranged on the opposite side (front side) of the pair of rotating pieces 111b across the pair of pivot parts 111a. In addition, a long hole 111d extending in the front-back direction is provided on the pair of rotating pieces 111b, and a pair of protrusions provided on the left and right sides of the front end of the double-legged part 110c of the first part 110 can be slidably embedded in the long hole 111d of the pair of rotating pieces 111b.

[0055] The linkage mechanism 108 is also configured to link a first action of disengaging the first locking portion 58 from the locking recess (not shown) of the cover body 42 with a second action of disengaging a pair of left and right second locking portions (not shown) from the dust bag mounting plate, similarly to the first embodiment. Fig.16 As shown, in the free state of the linkage mechanism 108 (the state in which the operating part 109 is not operated), since the button part 109a is forced backward, the left end 113b of the connecting piece 112a is forced forward. Therefore, the first part 110 moves forward, and the first stop part 58 and a pair of second stop parts (not shown) are in a stop state. At this time, the left and right pairs of protrusions of the double-legged part 110c of the first part 110 are located at the front ends of the long holes 111d of the left and right pairs of rotating pieces 111b of the second part 111, and the left and right pairs of rotating pieces 111b are tilted in a manner that their rear ends float upward.

[0056] When the lock of the lock portion 107 is released, Fig.17 As shown in the figure, if the button portion 109a is pressed forward, the right end portion 113a of the connecting piece 112a rotates forward while the left end portion 113b of the connecting piece 112a rotates backward, thereby the first part 110 moves backward. At this time, the left and right convex portions of the double-legged portion 110c of the first part 110 slide backward along the long holes 111d of the left and right pair of rotating pieces 111b of the second part, thereby the pair of rotating pieces 111b rotate downward with the pair of pivot portions 111a as the axis.

[0057] By the pair of rotating pieces 111b rotating downward, the pair of second stoppers (not shown) rotate upward with the pair of pivotal parts 111a as the center, and the connecting part 111c and the first stopper 58 rotate upward with the pair of pivotal parts 111a as the center. That is, if the pair of rotating pieces 111b located at the rear rotate downward with the pair of pivotal parts 111a as the axis, the pair of second stoppers, the connecting part 111c and the first stopper 58 located at the front rotate upward like a seesaw, thereby, the first stopper 58 performs the first action of disengaging from the stopper recess (not shown) of the cover body 42. In addition, before the button part 109a is fully pressed forward, in other words, in the middle of the button part 109a being fully pressed forward, the first action is performed. In this first action, although not shown, the connection part of the pair of rotating pieces 111b with the pair of second stoppers rises, and there is a time difference with the rise, and the connection part pushes the connection part 111c upward. At this time, if the cover 42 is directed downward, the cover 42 opens due to its own weight. The figure shows a state immediately after the first stopper 58 is disengaged from the stopper recess (not shown) of the cover 42 and before the cover 42 is opened. In addition, as in the first embodiment, a force applying member (not shown) for applying force in the direction of opening the cover 42 may be provided on the hinge portion (not shown). In this case, when the first action of disengaging the first stopper 58 from the stopper of the cover 42 is performed, the cover 42 is opened by the force applied by the force applying member.

[0058] After the first action, Fig.17 As shown, when the button portion 109a is pressed further forward compared to the position where the first action is performed, the connecting portion 111c is further swung upward. As a result, a second action is performed in which a pair of second locking portions (not shown) are disengaged from the mounting plate of the dust bag, so that the dust bag can naturally fall to the outside. In addition, if the pressing of the button portion 109a of the operating portion 109 is stopped, the locking portion 107 performs an action substantially opposite to the above-mentioned action. In this second embodiment, an example is shown in which the cover body 42 does not cross obliquely with respect to the central axis 24 of the barrel member 41a (a case in which it is orthogonal to the central axis 24), but similarly to the first embodiment, the cover body 42 may also cross obliquely with respect to the central axis 24 of the barrel member 41a. In addition, in Fig.17In the figure, since the button portion 109a is in a state of being fully pressed forward, the cover body 42 is originally opened and the second stopper is detached from the mounting plate of the dust bag, but for convenience of description, the cover body 42 is set to be in a closed state.

[0059] (Third Embodiment) Fig.18 1 is an explanatory diagram showing an electric vacuum cleaner according to a third embodiment. Fig.18 In, with Figure 4 The same elements are denoted by the same reference numerals. In the first and second embodiments, a handheld or stick-type electric vacuum cleaner 1 is exemplified (see Figure 1 ), but in the third embodiment, Fig.17 The canister-type electric vacuum cleaner 114 shown in FIG. Specifically, the electric vacuum cleaner 114 includes the dust collecting unit 4 of the first embodiment and a suction unit 116 including a holding unit 115 on which the dust collecting unit 4 is detachably mounted. Fig.18 The dust collecting unit 4 is shown in a simplified manner.

[0060] The suction unit 116 includes: a frame 119 having a pair of left and right wheels 117 and a front wheel 118; an electric suction machine (not shown) housed in the frame 119; and a power supply unit (not shown) that supplies power to the electric suction machine. The power supply may be a battery or a reel with a plug that can be connected to a commercial power source (socket). The housing 119 also includes a suction connection port 120 disposed at the lower portion of the front end, a handle 121 disposed at the upper portion of the front end, a recess 122 disposed behind the handle 121, and a cylindrical retaining portion 115 disposed behind the recess 122.

[0061] The holding portion 115 has a front opening 123 connected to the recess 122, a connection port 124 provided on the upper inner surface near the front opening 123, and an air intake port 125 provided deep inside the holding portion 115, and an exhaust port (not shown) is provided at the rear end of the holding portion 115. In addition, in the suction portion 116, the suction connection port 120 and the connection port 124 are connected through a ventilation path 126, and the air intake port 125 and the exhaust port (not shown) are connected through another ventilation path (not shown), and an electric suction machine (not shown) is provided in the other ventilation path. A connection hose (not shown) formed by connecting a suction port body, an extension pipe, and a flexible hose is connected to the suction connection port 120.

[0062] like Fig.18As shown, the dust collecting unit 4 can be attached and detached relative to the holding unit 115 of the suction unit 116 in the direction of the arrow 127. When the dust collecting unit 4 is mounted on the holding unit 115 of the suction unit 116, the inlet 45 of the dust collecting unit 4 is connected to the connection port 124 of the holding unit 115, and the exhaust opening 61 of the dust collecting unit 4 is connected to the air inlet 125 of the holding unit 115. When the canister electric vacuum cleaner 114 is driven, the air containing dust from the ventilation path 126 flows into the dust collecting bag in the dust collecting unit 4 through the connection port 124 and the inlet 45, and the dust is captured by the dust collecting bag. The air from which the dust is removed is discharged to the outside through the exhaust opening 61 of the dust collecting unit 4, the air inlet 125 of the holding unit 115, and other ventilation paths. After cleaning, the dust collecting unit 4 can be removed from the suction unit 116, and the dust collecting bag with dust accumulated can be discarded from the dust collecting unit 4 in the same manner as in the first embodiment. When the dust collecting unit 4 is removed from the suction unit 116, the inlet 45 can be directed upward, so that the dust in the dust collecting bag is unlikely to leak out from the inlet 45. Fig.18 In the embodiment, the center axis 24 of the dust collecting section 4 is oriented in a substantially horizontal direction. However, as long as the inlet 45 of the dust collecting section 4 can be removed in an upward direction, the center axis 24 of the dust collecting section 4 can be inclined relative to the horizontal direction. In addition, the dust collecting section 4 can be placed upright on the suction section 116. In this case, for example, the suction section 116 can be placed with the cover 42 at the top, the inlet 45 at the rear, and the exhaust opening 61 at the bottom, and the connection port 124 is connected to the inlet 45, and the holding section 115 is formed in a manner such that the air intake port 125 is connected to the exhaust opening 61. In this case, the holding section 115 is formed with the cover 42 at the top, the inlet 45 at the rear, and the exhaust opening 61 at the bottom. Fig.18 The front opening 123 of the holding portion 115 is shown rotated 90 degrees upward.

[0063] The preferred embodiment of the present invention also includes a combination of any one of the above-mentioned multiple modes. In addition to the above-mentioned embodiments, various modifications may be provided for the present invention. These modifications should not be construed as not belonging to the scope of the present invention. The present invention should include the same meaning as the claims and all modifications within the scope.

Claims

1. An electric vacuum cleaner, characterized in that: have: a suction portion that sucks air containing dust from a suction port; and A dust collecting part, which can arrange a dust collecting bag with a mounting plate inside, The dust collecting part is cylindrical and has a cover body and a locking part that can be opened and closed at one end side in the central axis direction. The locking portion has: A first locking portion, which is locked and fastened to the closed cover in a snap-on and detachable manner; a second stopper that is stoppered on the mounting plate of the dust bag in a removable manner; a linkage mechanism that causes the first stopper and the second stopper to be linked; and an operating unit that operates in a manner that causes the linkage mechanism to be actuated. The linkage mechanism links a first action and a second action, wherein the first action is an action of disengaging the first locking portion from the cover body, and the second action is an action of disengaging the second locking portion from the mounting plate.

2. The electric vacuum cleaner according to claim 1, characterized in that: The linkage mechanism comprises a first portion integrated with the first stop portion and a second portion integrated with the second stop portion, The first part is rotatable around a first axis extending in a direction perpendicular to the central axis of the dust collecting part. The second part is rotatable about a second axis parallel to the first axis. The first action is an action of rotating the first portion and the first locking portion by operating the operating portion and disengaging the first locking portion from the cover body. The second action is an action in which the rotating first portion abuts against the second portion and the second portion is rotated to disengage the second locking portion from the mounting plate of the dust bag.

3. The electric vacuum cleaner according to claim 1, characterized in that: The linkage mechanism links the first action and the second action so that after the first stopper is detached from the cover body, the second stopper is detached from the mounting plate of the dust bag.

4. The electric vacuum cleaner according to claim 3, characterized in that: The linkage mechanism comprises a first portion integrated with the first stop portion and a second portion integrated with the second stop portion, The first part is rotatable around a first axis extending in a direction perpendicular to the central axis of the dust collecting part. The second part is rotatable about a second axis parallel to the first axis. The first action is to operate the operating part to rotate the first portion and the first locking part so that the first locking part is separated from the cover body. The second action is an action in which the rotating first portion abuts against the second portion and the second portion is rotated to disengage the second locking portion from the mounting plate of the dust bag.

5. The electric vacuum cleaner according to any one of claims 1 to 4, characterized in that: When viewed from a direction perpendicular to the central axis of the dust collecting portion, the closed cover body obliquely intersects with the central axis of the dust collecting portion.

6. The electric vacuum cleaner according to claim 5, characterized in that: When viewed from a direction orthogonal to the central axis of the dust collecting section, an opening end portion provided at one end side of the dust collecting section has a protruding edge portion and a receding edge portion, wherein the protruding edge portion protrudes toward one end side in the direction of the central axis of the dust collecting section, and the receding edge portion recedes toward the other end side in the direction of the central axis of the dust collecting section. The first stopper portion of the lock portion is provided at the protruding edge portion, and the cover body is provided at the retracted edge portion via a hinge portion.

7. The electric vacuum cleaner according to claim 6, characterized in that: The peripheral wall portion of the dust collecting portion has an inlet opening penetrating the vicinity of the protruding edge portion and an exhaust opening on the other end side in the central axis direction. The suction part has: A suction cylinder having a suction port; A connecting port, which can be connected to the inlet of the dust collecting part; An air intake port, which can be connected to an exhaust opening of the dust collecting part; as well as an exhaust port for discharging the air flowing in from the air intake port to the outside, The second stopper is disposed near the inlet and between the inlet and the cover. A positioning rib for positioning the mounting plate of the dust collecting bag is provided near the inlet on the inner surface of the dust collecting portion.

8. The electric vacuum cleaner according to claim 6, characterized in that: The dust collecting part has an exhaust opening, and the exhaust opening is arranged on a side opposite to the cover body in the central axis direction of the dust collecting part. The length of the dust collecting portion in the central axis direction from the protruding edge of the cover body to the end of the exhaust opening is longer than the length in the central axis direction from the receding edge of the cover body to the end of the exhaust opening.

9. The electric vacuum cleaner according to any one of claims 1 to 4, characterized in that: The suction unit has a holding portion that detachably holds the dust collecting unit. The operating part is arranged on the outer surface of the peripheral wall of the dust collecting part. The dust collecting portion is held by the holding portion in a state where the operation portion and the holding portion of the suction portion are opposed to each other.

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