Dust bag for electric dust collector and electric dust collector using same

Abstract

Provided is a dust bag suitable for an elongated rod-type electric dust collector. A dust collection bag for an electric dust collector, the dust collection bag being removably accommodated in a dust collection part of the electric dust collector, the dust collection bag comprising a bag body having an opening and a mounting plate provided in the opening of the bag body; in the folded state, when viewed from the mounting plate side, the bag main body has a substantially rectangular shape in which the dimension in one direction is larger than the dimension in a direction orthogonal to the one direction, and the opening of the bag main body is provided closer to one end side than the center in the longitudinal direction parallel to the one direction of the bag main body. The mounting plate has a suction hole communicating with the opening of the bag body.

Description

Technical Field

[0001] The present invention relates to a dust collector for an electric vacuum cleaner and an electric vacuum cleaner capable of using the dust collector. Background Art

[0002] As a conventional electric vacuum cleaner, Japanese Patent Gazette No. 5449865 discloses a canister-type electric vacuum cleaner that captures dust in a dust bag placed in a dust chamber of a vacuum cleaner body. In this electric vacuum cleaner, a suction port is provided at the front end of the shell of the vacuum cleaner body, a suction fan is provided at the rear portion of the shell, a dust chamber is provided between the suction port in the shell and the electric blower, and a partition with a slit is provided between the dust chamber and the electric blower. The dust bag comprises: a support plate (backing paper) having a dust through hole; a seal member disposed around the dust through hole on one side of the support plate; and an air-permeable filter bag body (bag body) disposed on the other side of the support plate, and the support plate is mounted at the front end of the dust chamber in such a way that the dust through hole is connected to the suction port. When the electric vacuum cleaner collects dust, the electric blower is driven to create a negative pressure in the dust collecting chamber, and air containing dust flows into the dust collecting bag from the suction port, where the dust is captured. The air without dust is discharged to the outside from the exhaust port provided at the rear end of the shell through the suction fan.

[0003] In the dust bag of a canister type electric vacuum cleaner such as Japanese Patent No. 5449865, a commercially available disposable dust bag (so-called paper bag) is generally used. When viewed from the backing paper side, the unused dust bag has a bag body compactly folded into a rectangular shape extending in one direction parallel to the backing paper plane and in another direction opposite to the one direction, with the dust through hole of the backing paper as the center.

[0004] An unused dust bag is arranged in the dust collecting chamber of the electric vacuum cleaner, and when the electric blower is driven, the bag body expands toward the electric blower at the rear in the dust collecting chamber. At this time, the bag body also expands in the left-right direction in the dust collecting chamber. Summary of the invention

[0005] In recent years, stick-type electric vacuum cleaners that are easier to disassemble than canister-type electric vacuum cleaners have become popular. The stick-type electric vacuum cleaner has: a vacuum cleaner body, which has a handle; a suction port body (nozzle), which is placed on the ground; and an extension pipe, which connects the vacuum cleaner body and the suction port body. The stick-type electric vacuum cleaner is generally slender and long. The stick-type electric vacuum cleaner is configured to suck dust on the ground together with air into the suction port body, transport it to the dust collecting part in the vacuum cleaner body through the extension pipe, capture dust contained in the air by the dust collecting part, and discharge the air from which the dust has been removed to the outside.

[0006] Most of the stick-type electric vacuum cleaners use a cyclone-type dust collecting unit, and there are few stick-type electric vacuum cleaners that use a dust collecting bag-type dust collecting unit. Therefore, the dust collecting bag used in the stick-type electric vacuum cleaner is also not ordinary.

[0007] One aspect of the present invention is to provide a dust collecting bag for an electric vacuum cleaner completed in consideration of the above circumstances, and an electric vacuum cleaner that can use the dust collecting bag.

[0008] One aspect of the present invention provides a dust collecting bag for an electric vacuum cleaner, the dust collecting bag being detachably housed in a dust collecting portion of the electric vacuum cleaner, and comprising: The bag body has an opening and a mounting plate arranged at the opening of the bag body. When the bag body is folded, when viewed from the mounting plate side, the bag body has a substantially rectangular shape with a dimension in one direction being larger than a dimension in a direction orthogonal to the one direction. The opening of the bag body is provided at a position closer to one end than the center in the longitudinal direction parallel to one direction of the bag body. The mounting plate has an air suction hole communicating with the opening of the bag body.

[0009] One embodiment of the present invention provides an electric vacuum cleaner comprising: a suction unit that sucks air containing dust from a suction port; and A dust collecting unit with a dust collecting bag can be provided inside. The dust collecting part has a cylindrical peripheral wall, a bottom is provided at one end side of the peripheral wall in the central axis direction, an exhaust opening is provided at the other end side of the peripheral wall in the central axis direction, and an inlet is provided near the bottom of the peripheral wall. The length of the interior of the dust collecting portion in the central axis direction is longer than the width in the direction perpendicular to the central axis direction of the interior of the dust collecting portion.

[0010] According to a dust bag for an electric vacuum cleaner of one embodiment of the present invention, when air containing dust flows into the folded dust bag placed in the dust collecting part of the electric vacuum cleaner and the dust bag expands, the unfolded dimension in one direction is larger than the unfolded dimension in a direction orthogonal to the one direction. Therefore, the dust bag is suitable for a vertically long pole-type electric vacuum cleaner, can efficiently accumulate dust, and can reduce the material waste of the dust bag.

[0011] According to an electric vacuum cleaner of one embodiment of the present invention, an electric vacuum cleaner having a dust collecting section suitable for a dust collecting bag without creating wasted space can be obtained, and the dust collecting space can be ensured to be longer in the direction of the central axis inside the dust collecting section than in the direction orthogonal to the central axis direction inside the dust collecting container. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1This is a perspective view of the first embodiment of the electric vacuum cleaner according to the present invention as viewed diagonally 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 3 This 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 cut along the center line as viewed from the left side. 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 before use according to the first embodiment. 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 in which dust is accumulated in the dust collecting bag of the dust collecting unit according to 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.16A It is a top view of the dust collecting bag before use according to the second embodiment. Fig. 16B yes Fig.16A Left side view of the dust bag. Fig.17 This is a cross-sectional side view from the left side showing a state in which dust is accumulated in a dust collecting bag of a dust collecting unit according to a second embodiment. Fig.18 It is an explanatory diagram showing an electric vacuum cleaner according to a third embodiment. DETAILED DESCRIPTION

[0013] 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.

[0014] (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 unit 3 for sucking air containing dust from a suction port 2, a dust collecting unit 4 detachably mounted on the suction unit 3, and a battery 5 detachably mounted on the suction unit 3. In the case of this embodiment, a case where the electric vacuum cleaner 1 can be used as a handheld type or a stick type is illustrated, and a dust collecting bag (for example, a paper bag) is provided in the dust collecting unit 4. More specifically, the electric vacuum cleaner 1 includes an extension pipe and a suction port body, which are 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, it can be used as a stick type, and when the suction port body is directly connected to the suction port 2, it can be used as a handheld type.

[0015] 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 housing 21, an electric suction machine 22 disposed in the housing 21, and an operation button unit 23 capable of operating the electric suction machine 22 to drive, stop, adjust the output, etc. Figure 2 , the electric vacuum cleaner 1 is shown with the central axis 24 of the cylindrical dust collecting part 4 being in a horizontal state. 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 The electric suction machine 22 is arranged to be inclined 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.

[0016] 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 housing 21 has: a housing for accommodating an 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.

[0017] The electrical component storage section 31 of the housing 21 has an air intake port 36 on the front wall, an engaging 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 housing 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 to Figure 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 the pad 39a from rolling up. The suction cylinder 33 is a section between the suction port 2 and the connection port 39 where air circulates, and air does not circulate inside the rod-shaped portion 32.

[0018] In the housing 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.

[0019] 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 ) in the direction of the dust collecting part 4; 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 collecting bag. When the cover 42 is in the closed state, the closed cover 42 is equivalent to the bottom of the dust collecting part 4.

[0020] 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.

[0021] Figure 5 This is a cross-sectional view of the dust collecting portion 4 of the first embodiment cut along the center line when 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 part 4 has: a protruding edge 52 protruding toward one end (front end) side in the direction of the central axis 24; 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 orthogonal to the central axis 24 of the peripheral wall 41 of the dust collecting part 4. The protruding edge 52 is the upper front end portion of the peripheral wall 41 having the groove 44. The inlet 45 passes through the vicinity of the protruding edge 52 at the bottom of the groove 44 on the peripheral wall 41.

[0022] 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 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 cutouts; 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 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.

[0023] 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 5As 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 form an acute angle with the protruding edge 52. 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 in the locking recess 59 of the closed cover body 42 (see Figure 4 ). In addition, Figure 4 , the state in which the cover 42 is kept closed, but the first locking portion 58 is locked in the locking recess 59 (see Fig.12 ) and the state in which the locking recess 59 is disengaged from the locking recess 59 (refer to Fig.13 ) two situations.

[0024] 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 while increasing the opening area of ​​the opening end 51. As a result, the inside of the peripheral wall 41 is easy to see, 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 filled with dust and greatly expanded, it can be easily taken out from the peripheral wall 41.

[0025] 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.

[0026] 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 .

[0027] 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 is capable of connecting the cover body 42 to the peripheral wall 41 in an openable and closable manner. 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 biasing 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 to protrude in an outer direction (outer direction of the surrounding wall 67) substantially parallel to the central axis 24 by the action of a force applying member 65 (e.g., a compression spring) in 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.

[0028] 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.

[0029] exist Figure 7 FIG. 4 shows a state in which a pair of second locking portions 72 of the locking portion 43 penetrates the peripheral wall 41 and is locked to 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.

[0030] 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.

[0031] 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.

[0032] 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 fixed 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 obliquely downward in the front. 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 is pressed by the mounting plate 82 and 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.

[0033] 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.

[0034] 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 roughly rectangular in shape, with a dimension L3 in one direction being larger than a dimension L4 in a 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 one day's worth of garbage based on the "Japan Electrical Manufacturers' Association (JEMA)" as a benchmark for at least 30 days.

[0035] The mounting plate 82 has a surface exposed to the outside and a back surface on the opposite side 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 longitudinal 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 locking portions 72 of the locking portion 43, and the pair of second locking portions 72 are locked to the front ends 86a on both sides of the first protrusion 86 (refer to 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.

[0036] 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 pressed 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 presses 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.

[0037] 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 line when the cover 42 is in a state where the cover 42 is in a downward position), which makes installation easier. At this time, since the cover 42 is configured to be opened more than 90 degrees, it is possible to maintain a state of being opened due to 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 locking 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 simply placed in the recess 73 as follows. In this case, by pressing the pair of second locking portions 72 on the mounting plate 82 toward the edge side of the opening end 51, 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 locking portion 72 to the inner side, the second locking portion 72 is pushed and rotated by the mounting plate 82. When the front end 86a of the mounting plate 82 passes over the second locking portion 72, the pair of second locking portions 72 returns to the original position (locking position), and the pair of second locking portions 72 is locked to the front end 86a of the mounting plate 82 (refer to Figure 7 ).

[0038] When the dust bag 81 is installed, the rear end 85a of the bag body 85 moves along the rib 75, so that 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.

[0039] 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 downward.

[0040] 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 housing 21 of the suction portion 3 (see Figure 3 ). In addition, a cutout 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 notched recessed portion 50 is installed on the holding portion 312 of the suction part 3 in a state of being 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 portion 32a, thereby limiting the movement of the dust collecting part 4 in the left-right direction relative to the holding portion 312. In addition, before the lower end of the holding portion 312 is embedded in the groove 44 of the dust collecting part 4, since the convex portion 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 portion 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 recesses 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 designed to be 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 locking 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, the operating part 91 of the locking part 43 is hidden by the holding part 312 and cannot be pressed from the outside. Moreover, since 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 locking portion 58 of the dust collecting portion 4 and the lower end of the holding portion 312 of the suction portion 3. It is assumed that for some reason, in the dust collecting portion 4 installed on the holding portion 312 of the suction portion 3, the operating portion 91 is rotated downward, but even if the first locking portion 58 is rotated upward until it contacts the lower end of the suction cylinder portion 33, it becomes a structure that maintains the state in which the first locking portion 58 is locked on the locking recess 59 of the closed cover body 42, so the cover body 42 will not open. As such a situation, for example, when the dust collecting portion 4 of the suction portion 3 is installed, it is assumed that a foreign object is sandwiched between the holding portion 312 and the operating portion 91.

[0041] 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 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 housing 21 having the air intake port 36 and the surface of the dust collecting part 4 having the exhaust opening 61 are surfaces inclined 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 intake port 36. By setting it as such a configuration, it is possible to ensure that the area of ​​the air intake port 36 is large. In addition, a pre-filter not shown is provided on the air intake port 36. The pre-filter is embedded in an annular groove not shown in the figure provided on the peripheral wall of the air intake port 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, instead of the annular groove, a plurality of protrusions protruding from the peripheral wall of the air intake port 36 can be used to retain the pre-filter. 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 .

[0042] exist Figure 2 In the figure, the dust bag in the dust collecting part 4 is omitted, but the case where the dust bag is installed is described. After the dust collecting part 4 provided with the dust bag is installed in the suction part 3 as described above, when the operation button part 23 is operated to drive the electric suction machine 22, the dust collecting part 4 becomes negative pressure and generates suction force. Due to the suction force, the air containing dust flows into the suction cylinder part 33 from the suction port 2 of the suction part 3, and the air containing dust flows into the dust collecting bag through the connection port 39 and the inlet 45 of the dust collecting part 4. The dust flowing into the dust collecting bag is captured in the bag body, and the air from which the dust is removed flows into the electrical component storage part 31 from the air intake port 36 of the suction part 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 sometimes adheres to the outer surface of the bag body, but in the electric vacuum cleaner 1 of this embodiment, the user can discard the dust collecting bag into a trash can without holding it by hand. This will be described in detail later.

[0043] Fig.10 1 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 dust is fully accumulated in the bag body 85, as shown in FIG. Fig.10 As shown, the bag body 85 is substantially fully inflated 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 is greatly inflated 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 intake hole 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 the arrow B. In addition, there is a flow of the air flowing into the bag body 85 directly colliding with the inner surface of the bag body 85 opposite to the air intake port 83 of the dust collecting bag 81. Fine dust easily penetrates from 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 intake port 83.

[0044] Furthermore, assuming that in the present embodiment (a pole-type electric vacuum cleaner having a dust collecting part of a dust collecting bag type), when a dust collecting bag configured as a canister type electric vacuum cleaner is used, the bag body of the dust collecting bag includes a large number of useless parts that are not easy to expand. The reason is that when a dust collecting part of a dust collecting bag type is used in a pole-type electric vacuum cleaner, in order to maintain a slender shape, the dust collecting part becomes a longitudinal shape, and the dust collecting bag also needs to expand longitudinally. In contrast, since the dust collecting part of a canister-type electric vacuum cleaner can also ensure a wider space in the left-right direction compared to the dust collecting part of a pole-type electric vacuum cleaner, the dust collecting bag can also expand greatly in the front-back left-right direction. Therefore, a dust collecting bag that is most suitable for a pole-type electric vacuum cleaner having a dust collecting part of a dust collecting bag type is desired.

[0045] Therefore, in the present embodiment, dust is easily accumulated in the space behind the air intake hole 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 intake hole 83 is wider and the space in front of the air intake hole 83 where dust is difficult to accumulate is narrower. In addition, in the space in front of the air intake hole 83 of the dust bag 81, dust is more likely to accumulate than in the space closer to the air intake hole 83 and the space farther from the air intake hole 83. Therefore, the space closer to the air intake hole 83 (upper space) is wider than the space farther from the air intake hole 83 (lower space). Therefore, according to the dust collecting section 4, the closed cover 42 is aligned with the central axis 24 (refer to FIG. 2 ) of the dust collecting section 4 when viewed from the left side (the direction of observing the cross section) in a shape that is substantially along the shape of the dust bag 81 in a fully expanded state. Figure 2 ) form the internal space of the dust collecting section 4 in an oblique and cross manner, thereby, it is not easy to produce a dead angle in the front lower part of the dust collecting section 4. In order to do this, 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.

[0046] 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 In the figure, the cover member 41b (refer to Figure 4 The locking portion 43 includes: a first locking portion 58 that can be engaged and disengaged to be locked to the closed cover 42; and a pair of second locking portions 72 (see Figure 7 ), which is engaged and disengaged with the mounting plate 82 of the dust bag 81; a linkage mechanism 93, which links the first locking portion 58 and the second locking portion 72; and an operating portion 91, which is operated to activate the linkage mechanism 93. The linkage mechanism 93 has a first portion 94 and a second portion 95.

[0047] 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. Fig.12 Fig.14 The figure shows the posture of the dust collecting unit 4 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.

[0048] like Fig.12 As shown, in the linkage mechanism 93, the first portion 94 is integrated with the first locking portion 58, and the second portion 95 is integrated with a pair of second locking portions 72 (see Figure 7 The first part 94 can rotate around a first axis 96 extending in a direction orthogonal 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 axis 96 on the left and right sides of the outer side of the hole portion 94a. The second axis 97 is located slightly forward of the first axis 96, and the second portion 95 has a pair of left and right second pivot portions 97a on the second axis 97. In the present specification, integration is not limited to a structure in which the first portion 94 and the first locking portion 58 are physically integrated, but also includes a structure in which the first portion 94 and the first locking portion 58 are connected by other components so that when the first portion 94 moves, the first locking portion 58 moves simultaneously or substantially simultaneously. In addition, in the present specification, integration is not limited to a structure in which the second portion 95 and a pair of second locking portions 72 are physically integrated, but also includes a structure in which the second portion 95 and a pair of second locking portions 72 are connected by other components so that when the second portion 95 moves, the pair of second locking portions 72 moves simultaneously or substantially simultaneously.

[0049] like Fig.12 As shown, the end of the first portion 94 opposite to the first locking portion 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 (e.g., 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 closer to the front than 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, and the pair of left and right abutment pieces 101 and the pair of left and right second locking portions 72 are integrated. 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 .

[0050] like Fig.12 As shown, on the cylinder member 41a, at the inlet 45 (refer to Fig.10), a pair of through holes 103 are provided between the inlet 45 and the cover 42, and a sealing member 104 having a radial cutout is installed around 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 a direction to move the operating portion 91 away from the cylinder member 41a, and therefore, the first locking portion 58 is urged in a direction to be locked in the locking recess 59 of the cover 42. In addition, at this time, the second portion 95 is pressed toward the cylinder member 41a side by the first portion 94, and thereby, the pair of second locking portions 72 protrude toward the inside of the cylinder member 41a through the cutout of the sealing member 104, and are locked to the front end 86a of the mounting plate 82 of the dust collecting bag 81 provided inside the dust collecting section 4.

[0051] The linkage mechanism 93 is configured such that: 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 are linked. Fig.13 and Fig.14 As shown, the linkage mechanism 93 is in action. Fig.13 As shown, first, if the operating part 91 is gently pressed in the direction of the arrow 92, the first part 94 rotates in the direction of the arrow 105 with the first shaft 96 as the center, and the first locking part 58 is disengaged from the locking 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 rotates slightly in the direction of the arrow 106 with the second shaft 97 as the center. At this time, due to the gap X, after the first part 94 starts to rotate, the second part 95 rotates slightly delayed. Therefore, the pair of second locking parts 72 connected to the second part 95 also rotate slightly in the direction of the arrow 106, but the pair of second locking parts 72 maintain the state of being locked on the mounting plate 82 of the dust collecting bag 81. Alternatively, a biasing member (not shown) for biasing the cover 42 in the direction of opening 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 to open.

[0052] like Fig.14As 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 around the first axis 96, 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 locking portions 72 are further rotated in the direction of the arrow 106 around the second axis 97, and the pair of second locking portions 72 are separated from the mounting plate 82 of the dust bag 81. 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 hand of the user who grabs the dust bag 81 will not be contaminated. In addition, when the pair of second locking parts 72 are detached from the mounting plate 82 of the dust bag 81, the mounting plate 82 is pressed by the first piece 76, so that it moves in the direction away from the outside of the second locking part 72. Therefore, when it falls freely (naturally), it is difficult to contact the second locking part 72, and it can fall smoothly.

[0053] According to the linkage mechanism 93 of the present embodiment, the first action and the second action are linked in a time-difference manner so that after the first locking portion 58 is detached from the cover body 42, the second locking portion 72 is detached from the mounting plate 82 of the dust bag 81. 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 body 42 is oriented downward, the cover body 42 is fully opened by the first action of the linkage mechanism 93, and then the dust bag 81 naturally falls by the second action of the linkage mechanism 93, so that the dust bag 81 can be smoothly discarded without contacting the cover body 42. When discarding the dust bag 81, for example, the operating portion 91 of the locking portion 43 can be pressed in a state where the central axis 24 of the dust collecting portion 4 is oriented in a substantially horizontal direction to open the cover body 42. At this time, since the hinge portion 55 is located at the lower part of the opening end 51, the cover body 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.

[0054] In this 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 be adjusted to an interval at which the contact piece 101 and the action piece 102 do not contact each other at the time point when the first locking portion 58 is separated from the locking recess 59 of the cover body 42. In this case, the slight rotation of the second locking portion 72 during the first action can be eliminated, so the time until the second locking portion 72 is separated from the mounting plate 82 after the cover body 42 is opened can be extended. By adjusting the interval of the gap X in this way, the time until the second locking portion 72 is separated from the mounting plate 82 after the cover body 42 is opened can be adjusted. Therefore, even if the user presses the operating portion 91 in the direction of the arrow 92 at once, it is possible to avoid a situation where the dust bag 81 falls and is hooked on the cover body 42 before the cover body 42 is fully opened.

[0055] 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 made substantially horizontal to form the electric vacuum cleaner 1, and when the dust collecting part 4 is removed from the suction part 3 by releasing the lock of the locking mechanism 66, 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, as long as the dust collecting section 4 is disassembled in a state in which the inlet 45 is oriented upward, 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. 24 ) of the sealing member 56 provided at 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.

[0056] (Second Embodiment) Fig.16A It is a top view of the dust collecting bag before use according to the second embodiment. Fig. 16B yes Fig.16A Left side view of the dust bag. Fig.16A and Fig. 16B In, with Fig. 8A and Figure 8B The same elements are marked with the same reference numerals. The following mainly describes the differences between the second embodiment and the first embodiment. The second embodiment is the same as the first embodiment except that the structure of the dust bag 88 is different from that of the first embodiment. The following mainly describes the differences between the second embodiment and the first embodiment.

[0057] like Fig.16A and Fig. 16BAs shown, the dust bag 88 of the second embodiment has the same bag body 85 as the first embodiment and a mounting plate 89 mounted on the periphery of the opening 84 of the bag body 85. The mounting plate 89 has the same structure as the mounting plate 82 of the first embodiment (see Fig. 8A ) A plate portion 82X constructed in the same manner as above, and a pipe portion 90 integrated with the surrounding portion of the air intake hole 83 of the plate portion 82X.

[0058] The tube 90 protrudes from the plate 82X into the bag body 85, and does not protrude from the plate 82X to the outside. Due to the existence of the tube 90, even if the bag body 85 is in a folded state, the outer surface of the bag body 85 opposite to the outer surface of the bag body 85 to which the plate 82X is attached is expanded outwardly by the tube 90.

[0059] Fig.17 1 is a cross-sectional side view showing a state where dust is accumulated in the dust collecting bag of the dust collecting unit of the second embodiment, as viewed from the left side. Fig.17 In, with Fig.10 The same reference numerals are used for the same elements in FIG. 1 . The method of installing the dust collecting bag 88 in the second embodiment in the dust collecting unit 4 is substantially the same as the method of installing the dust collecting bag 88 described in the first embodiment.

[0060] like Fig.17 As shown in FIG. 1 , when the dust-containing air flows into the dust collecting part 4 from the inlet 45, the dust-containing air flows into the bag body 85 through the tube 90 as shown by the arrow B. Dust gradually accumulates from the rear space of the bag body 85 to the front space, and is not easily accumulated in the tube 90 due to the airflow passing through the tube 90. Therefore, even when the dust collecting bag 88 is filled with dust, dust is not easily accumulated in the tube 90. Therefore, after cleaning, the dust collecting part 4 is removed from the suction part 3 (see FIG. 1 ). Figure 2 ) is removed, and when the dust bag 88 with dust accumulated is discarded from the dust collecting section 4, the dust is difficult to overflow from the pipe section 90. At this time, by the same operation as the first embodiment, the cover 42 of the dust collecting section 4 can be opened, and the dust bag 88 can be naturally dropped from the dust collecting section 4 and discarded.

[0061] (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.17The 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 part 4 is shown in a simplified manner. The dust collecting bag placed in the dust collecting part 4 uses the dust collecting bag of the first embodiment (see Fig. 8A , Figure 8B ) or the dust bag of the second embodiment (refer to Fig.16A , Fig. 16B ).

[0062] The suction unit 116 includes: a housing 119 having a pair of left and right wheels 117 and a front wheel 118, an electric suction machine (not shown) housed in the housing 119, and a power supply unit (not shown) for supplying power to the electric suction machine. The power supply unit can be provided as a cable reel with a plug that can be connected to a battery or a commercial power source (socket). The frame 119 also includes: a suction connection port 120 provided at the lower portion of the front end, a handle 121 provided at the upper portion of the front end, and a recess 122 provided behind the handle 121, and a cylindrical retaining portion 115 is provided behind the recess 122.

[0063] 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 is connected to the connection port 124 through a ventilation path 126, and the air intake port 125 is connected to the exhaust port (not shown) 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.

[0064] 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-type electric vacuum cleaner 114 is driven, the air containing dust from the ventilation path 126 flows into the dust bag in the dust collecting unit 4 through the connection port 124 and the inlet 45, and the dust is captured by the dust 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 is removed from the suction unit 116, and the dust bag with accumulated dust can be discarded from the dust collecting unit 4 by performing the same operation as 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 dust collecting section 4 is disassembled in a state where the inlet 45 is oriented upward, the center axis 24 of the dust collecting section 4 can be inclined relative to the horizontal direction. Alternatively, the dust collecting section 4 can be placed upright on the suction section 116. In this case, for example, the integration section 4 can be placed on the suction section 116 in a manner such that the cover 42 is at the top, the inlet 45 is at the rear, and the exhaust opening 61 is at the bottom, and the holding section 115 can be constructed in a manner such that the connecting port 124 is connected to the inlet 45, and the air intake port 125 is connected to the exhaust opening 61. In this case, Fig.18 The holding portion 115 shown has a structure in which the holding portion 115 is rotated 90 degrees so that the front opening 123 faces upward.

[0065] 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. A dust collecting bag for an electric vacuum cleaner, wherein the dust collecting bag is detachably stored in a dust collecting portion of the electric vacuum cleaner, wherein: have: a bag body having an opening; and a mounting plate disposed at the opening of the bag body, When the bag is folded, the bag body is in a substantially rectangular shape when viewed from the mounting plate side, with a dimension in one direction being larger than a dimension in a direction perpendicular to the one direction. The opening of the bag body is provided at a position closer to one end than the center in the longitudinal direction parallel to one direction of the bag body. The mounting plate has an air suction hole communicating with the opening of the bag body.

2. The dust bag according to claim 1, characterized in that: The mounting plate has a protrusion, The protrusion protrudes from the bag body in a direction perpendicular to one direction when the bag body is folded.

3. The dust bag according to claim 1, characterized in that: The mounting plate has a tube portion communicating with the interior of the inflated and expanded bag body. The tube portion is integrated with a peripheral portion of the air intake hole.

4. An electric vacuum cleaner, characterized in that: have: a suction portion that draws air containing dust from a suction port; A dust collecting unit, wherein the dust collecting bag according to any one of claims 1 to 3 can be arranged inside; The dust collecting portion has a cylindrical surrounding wall, a bottom is provided on one end side of the central axis direction of the surrounding wall, an exhaust opening is provided on the other end side of the central axis direction of the surrounding wall, and an inlet is provided near the bottom of the surrounding wall. The length of the interior of the dust collecting portion in the central axis direction is longer than the width in a direction perpendicular to the central axis direction of the interior of the dust collecting portion.

5. The electric vacuum cleaner according to claim 4, characterized in that The electric vacuum cleaner is a handheld or stick type, The suction portion has: a suction cylinder having a suction port at a front end; a holding portion, which is arranged along the length direction of the suction cylinder and holds the dust collecting portion; a connecting port, which can be connected to the inlet of the dust collecting part; an air intake port, which can be connected to the exhaust opening of the dust collecting portion; as well as The exhaust port discharges the air flowing in from the air intake port to the outside.

6. The electric vacuum cleaner according to claim 5, characterized in that When the central axis of the dust collecting portion is made horizontal, the connection port of the holding portion is arranged downward; When the central axis of the dust collecting portion is horizontal, the dust collecting portion can be attached and detached with the inlet facing upward relative to the holding portion.

7. The electric vacuum cleaner according to claim 5, characterized in that The bottom of the dust collecting part is openable and closable.

8. The electric vacuum cleaner according to claim 6, characterized in that The bottom of the dust collecting part is openable and closable.

9. The electric vacuum cleaner according to claim 4, characterized in that The electric vacuum cleaner is a canister type, The suction portion has: a suction port, which draws in air containing dust; a holding portion that detachably holds the dust collecting portion; a connecting port, which can be connected to the inlet of the dust collecting part; a suction cylinder capable of connecting the suction port and the connection port; an air intake port, which can be connected to the exhaust opening of the dust collecting part; as well as The exhaust port discharges the air flowing in from the air intake port to the outside.

10. The electric vacuum cleaner according to claim 9, characterized in that The bottom of the dust collecting part is openable and closable.

Images