JP6416632B2 - Electric vacuum cleaner - Google Patents

Description

The embodiment of the present invention relates to a vacuum cleaner having a grip portion on a main body portion.

  Conventionally, there is a so-called stick type vacuum cleaner in which an extension pipe and a floor brush are directly connected to a vacuum cleaner body incorporating an electric blower. Such a vacuum cleaner is provided with a handle serving as a gripping portion in the vacuum cleaner body, and cleans the grip while holding the handle and moving the tip of the floor brush or extension tube on the surface to be cleaned.

  In such an electric vacuum cleaner, the main body of the secondary battery or cord reel built into the power supply unit is directly held by the handle, but the weight of the power supply unit and the electric blower is heavy because the secondary battery and cord reel are heavy. The positional relationship between the object and the handle affects the handling of the handle. Therefore, it is required to improve these positional relationships and improve operability.

JP 2014-61451 A Japanese Patent Laid-Open No. 2014-100571

  The problem to be solved by the present invention is to provide a vacuum cleaner with improved operability.

The vacuum cleaner of an embodiment is a vacuum cleaner provided with the vacuum cleaner main body provided with the main-body part and a dust collector, and the extension pipe connected to this vacuum cleaner main body. The main body unit includes a main body connection port, an electric blower, a gripping unit, and a power supply unit. An extension pipe is connected to the main body connection port. The electric blower is at least partially located on the axis of the extension pipe, and communicates with the main body connection port via the dust collector. The gripping part is located on the side opposite to the main body connection port with respect to the electric blower. A power supply part becomes a power supply of an electric blower. The dust collector is located on the side opposite to the center of gravity of the power supply unit with respect to the axis of the extension pipe . The center of gravity of the electric blower is within the width of the dust collector in the axial direction of the extension pipe. Alternatively, the electric blower has the suction side on the grip portion side and the exhaust side on the main body connection port side .

It is a perspective view which shows the vacuum cleaner of one Embodiment. It is sectional drawing of the vacuum cleaner main body of a vacuum cleaner same as the above. It is a perspective view of the main-body part of a vacuum cleaner main body same as the above. It is a perspective view of the dust collector of a vacuum cleaner main body same as the above.

  The configuration of one embodiment will be described below with reference to FIGS.

  In FIG. 1, reference numeral 11 denotes a vacuum cleaner, and this vacuum cleaner 11 constitutes a vacuum cleaner together with a support device (charging stand) (not shown) that supports the vacuum cleaner 11 in a stored state that is not used for cleaning. It is.

  And this electric vacuum cleaner 11 is equipped with a vacuum cleaner body 15 and a so-called stick comprising an extension pipe 16 directly connected to this vacuum cleaner body 15 and an air passage body 18 comprising a floor brush 17 as a suction port body. A type of vacuum cleaner. For the vacuum cleaner 11, hereinafter, the front-rear direction, the up-down direction, the left-right direction, etc. are used in a state of cleaning with the main body connection port 19 side, which will be described later, facing the surface to be cleaned (floor surface) ( Based on cleaning condition. That is, the arrow U and arrow D directions shown in FIG. 1 are defined as the up-down direction, the arrow FR direction and the arrow RR direction as the front-rear direction, and the arrow L direction and the arrow R direction as the left-right direction.

  The vacuum cleaner main body 15 includes a main body 21 and a dust collector 22 that can be attached to and detached from the main body 21.

  The main body 21 shown in FIG. 1 to FIG. 3 has a main body case 25 formed of, for example, a synthetic resin. The main body 21 includes a connecting portion 26 and a charging connecting portion 27 located at one end, a protruding portion 28 located at the other end, and a space between the connecting portion 26 and the charging connecting portion 27 and the protruding portion 28. A continuous longitudinal main body 29, a holding part 30 that protrudes from the main body 29 and holds the dust collector 22, and a grip for connecting the protrusion 28 and the holding part 30 to hold the cleaner body 15 The fitting portion 32 into which the dust collecting device 22 is fitted is recessed between the main body 29 and the holding portion 30. The main body 21 includes an electric blower 34, a control unit 35 that controls driving of the electric blower 34, and a secondary battery 36 that serves as a power source for the electric blower 34 and the control unit 35. Is housed and configured.

  The connection portion 26 is a portion to which one end portion (downstream end portion) of the extension pipe 16 is connected. The connection portion 26 is formed in a cylindrical shape and protrudes from a front end portion (lower end portion) which is one end portion of the main body 29. That is, the front end portion of the connection portion 26 is a main body connection port 19 to which the extension pipe 16 is connected. In addition, the connection portion 26 is provided with an extension tube clamp portion 43 that holds the connected extension tube 16, and a fulcrum portion 44 that serves as a fulcrum when the dust collector 22 is attached to the main body portion 21. Is provided. Further, the axial direction of the connecting portion 26 is substantially parallel to the longitudinal direction of the main body 29. Further, the connecting portion 26 is located on the upper side with respect to the front end portion (lower end portion) of the main body 29. The connecting portion 26 is set to have a larger protruding amount in the direction along the longitudinal direction of the main body 29 than the charging connecting portion 27. Hereinafter, the axis A of the extension pipe 16 connected to the main body connection port 19 refers to the central axis of the air path in the extension pipe 16 along the opening direction of the main body connection port 19. Further, one side (other side) with respect to this axis A means that most of the center of gravity and the center of gravity are located on one side (other side), and the whole is not necessarily located on one side (other side). It is not necessary to include the case where a part is located on the other side (one side).

  The extension tube clamp portion 43 can be of any known configuration, but is exposed to be operable at the upper portion of the connection portion.

  In this embodiment, the fulcrum part 44 is recessed at the upper part of the connection part 26, and is located behind the extension pipe clamp part 43, that is, on the side opposite to the main body connection port 19.

  The charging connection portion 27 is for charging the secondary battery 36 and is a portion mechanically and electrically connected to the support device side. This charging connection portion 27 protrudes from the front end portion (lower end portion) of the main body 29, and a connection concave portion 47 is provided at the tip portion, and is electrically connected to the secondary battery 36 inside the connection concave portion 47. A charging terminal 48 is arranged. In addition, the charging connection portion 27 is positioned to be biased downward with respect to the front end portion (lower end portion) of the main body 29. Therefore, the charging connection portion 27 is located below the connection portion 26. In other words, the connecting portion 26 and the charging connecting portion 27 are arranged side by side at the front end portion of the main body 29 in the vertical direction, that is, in the direction intersecting (orthogonal) with the longitudinal direction of the main body 29.

  The protruding portion 28 protrudes from the rear end portion (upper end portion) which is the other end portion of the main body 29, and the secondary battery 36 is accommodated therein. The projecting portion 28 is formed in a longitudinal shape along a direction inclined with respect to the axis A of the extension tube 16 (longitudinal direction of the main body 29). That is, the projecting portion 28 is inclined from the rear end portion (upper end portion) of the main body 29 so as to be inclined in a direction away from the axis A of the extension pipe 16 in one side direction. In other words, the main body portion 21 is bent into a square shape by the protruding portion 28 and the main body 29. In addition, the protrusion 28 is located at a position opposite to the main body 29 and the grip portion 31 of the protrusion 28, that is, when the lower portion of the rear end portion (rear end portion of the main body portion 21) is placed on the placement surface. A grounding surface 51 is formed as a contact portion in contact with the placement surface, and a main body exhaust port 52 is opened at a position of the grounding surface 51.

  The ground contact surface 51 is formed to be curved in a circular arc that protrudes downward when viewed from the side, and is substantially over the width direction that is the left-right direction of the cleaner body 15 (main body part 21 (projection part 28)). It is continuous to have the same shape. That is, the ground surface 51 is formed to extend linearly along the left-right direction.

  The main body exhaust port 52 communicates with the exhaust side (exhaust side air passage) of the electric blower 34, and discharges a part of the exhaust from the electric blower 34 to the outside of the main body portion 21 (the vacuum cleaner main body 15). It is. The main body exhaust ports 52 are opened in a long hole shape along the arc of the ground contact surface 51, and a plurality of the main body exhaust ports 52 are arranged side by side in the left-right direction.

  The main body 29 is formed in a linear longitudinal shape, and is inclined so that the front part is on the lower side and the rear part is on the upper side in use. Inside the main body 29, an electric blower 34, a control means 35 and the like are accommodated. In addition, the main body 29 has an intake communication port 54 as a first opening and an exhaust communication port 55 as a second opening in the upper portion facing the fitting portion 32, that is, the dust collection device 22. Are opened. Further, an intake air passage portion 56 and an exhaust air passage portion 57 that communicate with the intake communication port 54 and the exhaust communication port 55, respectively, are partitioned inside the main body 29. Further, a plurality of main body exhaust ports (not shown) are opened side by side in the longitudinal direction of the main body 29 on the lower side of the main body 29, that is, on the left and right sides opposite to the fitting portion 32.

  The intake communication port 54 is disposed away from the exhaust communication port 55 on the front end side of the main body 29. That is, the intake communication port 54 and the exhaust communication port 55 are arranged side by side in the longitudinal direction of the main body 29 and are separated from each other, and are opened in a direction intersecting (orthogonal) with respect to the axis A of the extension pipe 16. In other words, the exhaust communication port 55 is located on the opposite side of the main body connection port 19 with respect to the intake communication port 54.

  Further, for example, a filter 55a is disposed in the exhaust communication port 55.

  The intake air passage portion 56 communicates (directly) the main body connection port 19 and the intake communication port 54 (the suction side of the dust collector 22), and the upstream side is formed coaxially with the axis A of the extension pipe 16, The downstream side is bent in an upward direction intersecting (orthogonal) with the axis A. Therefore, the intake air passage portion 56 is formed to be bent in an L shape from the upstream side to the downstream side.

  The exhaust air passage portion 57 communicates the exhaust communication port 55 and the suction side of the electric blower 34 (directly), and is formed in a straight line along a direction intersecting (orthogonal) with the axis A of the extension pipe 16. The downstream side is open in the direction along the axis A of the extension pipe 16.

  The main body exhaust port communicates with the exhaust side (exhaust side air passage) of the electric blower 34 and discharges a part of the exhaust from the electric blower 34 to the outside of the main body 21 (the vacuum cleaner main body 15). is there.

  The holding portion 30 is an upper portion of the main body 29, specifically, from a front portion where the main body 29 and the protruding portion 28 are continuous, in a direction intersecting (orthogonal) with the longitudinal direction of the main body 29, that is, It protrudes along a direction substantially perpendicular to the axis A. Therefore, the upper portion of the main body portion 21 surrounds the fitting portion 32 by the holding portion 30 and the main body 29 and has an L shape. The holding portion 30 is provided with a guide portion 61 serving as a guide when the dust collector 22 is attached to the main body portion 21 at a position facing the fitting portion 32.

  The guide part 61 is formed in a linear rib shape along the holding part 30, for example, along a direction intersecting (orthogonal) with the longitudinal direction of the main body 29 (main body part 21). In the present embodiment, a pair of guide portions 61 are provided at positions facing the fitting portion 32 of the holding portion 30 so as to be separated from each other on the left and right. Further, in these guide portions 61, the end portion on the base end side of the holding portion 30 is a dust collector locking portion 61a for locking and fixing the dust collector 22. Therefore, these guide portions 61 have a function of a locking and fixing portion that locks and fixes the dust collector 22 to the main body portion 21.

  The grip portion 31 is also called a hand operation portion, and has a circular arc shape that extends from the rear end portion of the projecting portion 28 (main body portion 21 (vacuum cleaner main body 15)) to the front end portion (front end portion) of the holding portion 30. Is formed. That is, the grip portion 31 is located at the uppermost portion of the main body portion 21 and is disposed across the axis A of the extension pipe 16 on one side (lower side) and the other side (upper side). Therefore, at least a part of the grip portion 31 is located on the opposite side of the main body connection port 19 (connection portion 26) with respect to the electric blower 34 (main body 29). In other words, the grip portion 31 is arranged so that a part thereof is positioned on the axis A of the extension pipe 16. Therefore, the grip portion 31 is located on the upper side of the secondary battery 36 accommodated in the protruding portion 28, that is, in the vicinity immediately above. In addition, a setting button 64 for setting the operation of the electric blower 34 and the like in the control means 35 is disposed on the grip portion 31. The setting button 64 is disposed, for example, on the front side of the grip portion 31, that is, on the other side with respect to the axis A of the extension tube 16, and can be operated with the thumb of the hand that grips the grip portion 31. Yes.

  The fitting portion 32 is located on the upper side which is the other side with respect to the axis A of the extension pipe 16.

  Further, the electric blower 34 is a heavy object also called a fan motor, and sucks dust-containing air into the dust collector 22 through the air passage body 18 by generating negative pressure by driving, and also into the dust collector 22 The air from which the dust has been separated is sucked in and cooled down, and then exhausted. The electric blower 34 is formed in a cylindrical shape, is located on the axis A of the extension pipe 16 and is disposed on the main body 29 (main body portion 21), and the central axis is on one side with respect to the axis A. Located on the lower side. The electric blower 34 is arranged so as to have an axial direction along the longitudinal direction of the main body 29, with the fan side, that is, the suction side being the upper side (rear side) and the motor side, that is, the exhaust side being the lower side (front side). Yes. More specifically, in the electric blower 34, the suction side that communicates with the exhaust side of the dust collector 22 through the exhaust communication port 55 is positioned closer to the main body connection port 19 than the exhaust communication port 55, and the main body 29 (main unit Part 21). In the present embodiment, the electric blower 34 is located between the exhaust communication port 55 and the intake communication port 54 and is disposed in the main body 29 (main body portion 21).

  The control means 35 includes a drive control unit that operates the electric blower 34 and the like according to a user setting by the setting button 64, and a charging circuit unit such as a constant current circuit that receives power from the support device side and charges the secondary battery 36. Are provided. In the present embodiment, as the control means 35, for example, a circuit board provided with a microcomputer is used. The control means 35 is located in the lower side (front side) of the electric blower 34, that is, on the main body connection port 19 side, and is disposed in the main body 29 (main body portion 21). Therefore, the control means 35 is located on the opposite side of the secondary battery 36 with respect to the electric blower 34. Further, the control means 35 is arranged along a direction intersecting (orthogonal) with respect to the axis A of the extension pipe 16, and a part thereof is located on the axis A.

  The secondary battery 36 is a battery pack in which a plurality of batteries are connected in series or in parallel. The secondary battery 36 is heavier than the electric blower 34 and is the heaviest weight in the vacuum cleaner 11. The secondary battery 36 is disposed along the protruding portion 28. For this reason, the secondary battery 36 is positioned on the lower side, which is one side with respect to the axis A of the extension pipe 16, and is separated from the axis A, ie, the axial direction of the electric blower 34. It has a longitudinal direction along the direction which inclines toward the direction, and is arrange | positioned along the front-back direction substantially.

  Moreover, the dust collector 22 shown in FIG.1, FIG2 and FIG.4 is the separation main body part 71 which isolate | separates dust from dust-containing air, and the dust accommodating part which accommodates the dust isolate | separated by this separation main body part 71. And a cup part 72. Further, the dust collector 22 is the heaviest weight in the vacuum cleaner 11, that is, a weight having substantially the same weight as the secondary battery 36. Further, the dust collector 22 has a cylindrical outer surface (outer peripheral surface) as a rough outline. In other words, the dust collector 22 has an arcuate surface on the side opposite to the side facing the main body 21, in other words, the outer surface exposed without being covered by the main body 21. In addition, the dust collector 22 is sucked from the intake port 74 and the intake port 74 for sucking in dust-containing air by driving the electric blower 34 at a position facing the main body unit 21 in a state where the dust collector 22 is mounted. The exhaust ports 75 for discharging the air from which the dust is separated by the separation main body 71 to the outside of the dust collector 22 are opened. The dust collector 22 has the intake port 74 and the exhaust port 75 facing the upper side of the main body 21 (main body 29), that is, the fitting of the main body 21 with the intake port 74 and the exhaust port 75 as the lower side. The main body portion 21 is fitted to the joint portion 32. Accordingly, the dust collector 22 is located on the upper side, which is the other side with respect to the axis A of the extension pipe 16. In other words, the dust collector 22 is located on the opposite side of the secondary battery 36 with respect to the axis A of the extension pipe 16.

  The separation main body 71 is made of, for example, a synthetic resin. The separation main body 71 may have any configuration. For example, in the present embodiment, the first separation portion 77 that centrifuges (cyclonic separation) coarse dust that is relatively large dust, and the first separation portion 77. A second separation unit 78 that centrifuges (cyclonic separation) fine dust that is relatively small dust that could not be separated by the separation unit 77, and slightly in the air that has passed through the second separation unit 78 A multi-stage centrifugal separation type is provided with a filter body 79 for separating (filtering and separating) dust contained therein. The separation main body 71 is formed in a substantially cylindrical shape, and the outer surface is an arcuate surface (substantially cylindrical surface). In addition, an attachment / detachment mechanism 81 for detachably locking the dust collector 22 with respect to the body part 21 (holding part 30) is provided on the upper part outside the separation body part 71, that is, on the side opposite to the cup part 72. It has been. In the separation main body 71, the exhaust port 75 is opened at a position facing the main body 21 (main body 29). As described above, the separation main body 71 has a more complicated structure than the cup 72 and is composed of a larger number of parts than the cup 72, and constitutes most of the weight of the dust collector 22, that is, The weight is larger than that of the cup part 72.

  The first separation part 77 is arranged coaxially with the cup part 72 and a part thereof is inserted into the cup part 72. By rotating dust-containing air in the cup part 72, the dust (coarse dust) is centrifuged. Separate and compress and store in cup 72.

  For example, a plurality of second separators 78 are arranged around the upper periphery of the first separator 77, are formed in a substantially cylindrical shape having a smaller radius than the cup part 72, and the air that has passed through the first separator 77 is removed. By rotating inside, dust (fine dust) is centrifuged and collected in the cup portion 72.

  The filter body 79 is disposed to face the upper side of the entire exhaust side of the second separation part 78.

  The cup portion 72 is formed in a bottomed cylindrical shape using, for example, a translucent synthetic resin, and can be attached to and detached from the lower end portion of the separation main body portion 71 coaxially. Therefore, the outer surface of the cup portion 72 is an arcuate surface (substantially cylindrical surface). In addition, the cup portion 72 has the intake port 74 opened at a position facing the main body portion 21 (main body 29), and a rotation fulcrum when the dust collector 22 is attached to the main body portion 21. A locking portion 89 is provided.

  The locking portion 89 protrudes at a position opposite to the separation main body portion 71 of the cup portion 72, that is, in the vicinity of the lower end portion, below the intake port 74. The locking portion 89 is engaged with the fulcrum portion 44 (FIGS. 2 and 3) of the main body portion 21 and is engaged with the fulcrum portion 44 so that the dust collector 22 is attached to the main body portion 21 in the up, down, left and right directions. In addition to the positioning of the direction, the attachment / detachment mechanism is provided along the guide portions 61 and 61 by rotating the upper side of the dust collector 22 toward the main body portion 21 around the locking portion 89 at the position of the fulcrum portion 44. 81 is activated so that the dust collector 22 can be attached to the main body 21.

  The intake port 74 is airtightly connected to the intake communication port 54 when the dust collector 22 is attached. Therefore, the intake port 74 is airtightly connected to the main body connection port 19 (via the intake communication port 54 and the intake air passage unit 56) in a state where the dust collector 22 is mounted. In other words, the air inlet 74 opens along a direction intersecting (orthogonal) with respect to the axis A of the extension pipe 16 when the dust collector 22 is attached. Further, the intake port 74 is configured to guide dust-containing air along the tangential direction of the cup portion 72.

  The exhaust port 75 is airtightly connected to the exhaust communication port 55 when the dust collector 22 is attached. Therefore, the exhaust port 75 is airtightly connected to the suction side of the electric blower 34 (via the exhaust communication port 55 and the exhaust air passage unit 57) in a state where the dust collector 22 is mounted. That is, the exhaust port 75 opens along a direction intersecting (orthogonal) with respect to the axis A of the extension pipe 16 when the dust collector 22 is mounted. The exhaust port 75 is disposed above the intake port 74 and in the vicinity of the upper end of the dust collector 22.

  The extension tube 16 shown in FIG. 1 is formed in an elongated shape, and the base end side is connected to the main body portion 21 (connecting portion 26 (main body connecting port 19)) of the cleaner body 15, and the dust collecting device 22 is connected. It is designed to be connected in an airtight manner. Further, on the distal end side of the extension pipe 16, a floor brush clamp portion 91 is provided as a suction port body clamp portion that detachably latches and holds the floor brush 17.

  The floor brush clamp portion 91 can be of any known configuration, but is exposed to be operable at the upper portion of the extension tube 16.

  The floor brush 17 includes a case body 94 that is horizontally long, that is, formed in a longitudinal shape in the left-right direction, and a connecting pipe 95 that is rotatably connected to the case body 94. In the case body 94, a suction port 96 is opened at a lower portion facing the surface to be cleaned. Further, the connection pipe 95 communicates with the suction port 96 and is airtightly connected to the distal end side of the extension pipe 16, and this connection is maintained by the floor brush clamp portion 91.

  Accordingly, an air path is formed from the floor brush 17 (suction port 96) to the extension pipe 16, the main body connection port 19, the dust collector 22 and the suction side of the electric blower 34.

  Next, the operation of the one embodiment will be described.

  When cleaning with the electric vacuum cleaner 11, as shown in FIGS. 1 to 4, the vacuum cleaner main body 15 (main body portion 21 (main body connection port 19)) having the dust collector 22 attached to the main body portion 21 is used. On the other hand, the base end side of the extension pipe 16 is connected and detachably locked and held by the extension pipe clamp portion 43, and the connection pipe 95 of the floor brush 17 is inserted and connected to the distal end side of the extension pipe 16. The floor brush clamp 91 is detachably locked and held. In this state, the floor brush 17 communicates with the dust collector 22 via the extension pipe 16, the main body connection port 19 of the cleaner body 15, the intake air passage portion 56, the intake communication port 54, and the intake port 74, The dust collector 22 communicates with the suction side of the electric blower 34) via the exhaust port 75 of the dust collector 22, the exhaust communication port 55 of the cleaner body 15, and the exhaust air passage unit 57.

  In the vacuum cleaner 11, the control means 35 is electrically operated by the operation set by the user holding the grip portion 31 placing the floor brush 17 on the surface to be cleaned and operating the setting button 64 of the grip portion 31. While driving the blower 34, the floor brush 17 is alternately driven in the front-rear direction and the diagonal direction on the surface to be cleaned, and sucks the dust on the surface to be cleaned using the negative pressure generated by the driving of the electric blower 34. . That is, the negative pressure generated by the driving of the electric blower 34 is the exhaust air passage portion 57, the exhaust communication port 55, the dust collector 22, the intake port 74, the intake communication port 54, the intake air passage portion 56, the main body connection port 19, It acts with the extension pipe 16 and the floor brush 17 (connection pipe 95 and suction port 96), and sucks dust together with air from the suction port 96 of the floor brush 17. The sucked dust-containing air is sucked from the floor brush 17 through the extension pipe 16 into the dust collector 22 through the air inlet 74, and almost all dust is centrifuged by the first separating portion 77 and the second separating portion 78. When it is separated and slightly fine dust remains, it is collected by the filter body 79. The air from which the dust has been separated is discharged from the exhaust port 75 to the outside of the dust collector 22, and is sucked into the electric blower 34 to cool the electric blower 34. It is discharged outside. The vacuum cleaner 11 can also be cleaned by removing the air passage body 18 and sucking in dust directly from the main body connection port 19, or the air connection body such as a separate suction nozzle (vine port) in the main body connection port 19. You can also connect and clean.

  When cleaning is completed, the user operates the setting button 64 to stop the electric blower 34 by the control means 35. And the vacuum cleaner 11 is attached to a support device, and it is set as an accommodation state.

  According to the embodiment described above, the electric blower 34 is disposed on the axis A of the extension pipe 16, and the gripping portion is disposed on the opposite side of the main body connection port 19 with respect to the electric blower 34 on the axis A of the extension pipe 16. 31 is disposed, and the secondary battery 36 is disposed below the axis A of the extension tube 16, and the dust collector 22 is mounted on the main body 21 and is located above the axis A of the extension tube 16. Therefore, the weight balance between the upper side and the lower side with respect to the extension pipe 16 is achieved, and the generation of a rotational moment about the axis A of the extension pipe 16 is suppressed, thereby improving the operability.

  More specifically, the electric blower 34 that is a heavy object is disposed on the axis A of the extension pipe 16, and the secondary battery 36 that is the heaviest heavy object is disposed below the axis A, By disposing the dust collector 22 having substantially the same weight as the secondary battery 36 on the upper side with respect to the axis A, at least the upper side of the axis A is the lower side in the state where the grip portion 31 positioned on the axis A is held. Therefore, it is possible to suppress the generation of a moment in which the upper side, which is the dust collector 22 side, rotates downward about the axis A of the extension pipe 16. Therefore, when the grip portion 31 is gripped and operated, the upper side of the axis A of the extension pipe 16 is not swung by the weight of the dust collector 22, and the operability can be improved.

  Further, since the electric blower 34 is positioned on the axis A of the extension pipe 16 and biased downward, the weight of the lower side of the axis A of the extension pipe 16 increases as a whole, and the gripping portion 31 is increased. Can be gripped stably.

  Further, the secondary battery 36 is positioned below (directly below) the gripping portion 31 in a state where the gripping portion 31 is gripped, so that, for example, the secondary battery 36 is disposed at a position away from the gripping portion 31. As compared with the case where the battery is held, a moment due to the weight of the secondary battery 36 is less likely to be generated in the grip portion 31, and the operability can be improved.

  Further, the gripping portion 31 is disposed so as to be connected between the position of the protruding portion 28 on the rear end side of the secondary battery 36 and the holding portion 30 serving as the end portion of the dust collector 22, so that the upper side of the axis A Since both ends of the grip portion 31 are positioned on the lower side and the lower side, it is easy to apply torque in the rotation direction about the axis A while gripping the grip portion 31, and the operability can be further improved.

  In the above-described embodiment, in addition to the secondary battery 36, for example, a cord reel device that takes power from an external power source using a power cord can be used as the power source.

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

11 Vacuum cleaner
15 Vacuum cleaner body
16 Extension pipe
19 Main unit connection port
21 Main unit
22 Dust collector
31 Grip part
34 Electric blower
36 Secondary battery as power supply
54 Inlet communication port
55 Exhaust communication port
64 setting buttons
74 Inlet
75 exhaust port A axis

Claims (9)

A vacuum cleaner comprising a main body part and a vacuum cleaner body provided with a dust collector, and an extension pipe connected to the vacuum cleaner body,
The main body is
A main body connection port to which the extension pipe is connected;
An electric blower that is at least partially located on the axis of the extension pipe and communicates with the main body connection port via the dust collector;
A gripping part located on the opposite side to the main body connection port with respect to the electric blower;
A power supply unit serving as a power supply for the electric blower,
The dust collector is located on the opposite side of the center of gravity of the power supply unit with respect to the axis of the extension pipe ,
A vacuum cleaner characterized in that the center of gravity of the electric blower is within the width of the dust collector in the axial direction of the extension pipe . A vacuum cleaner comprising a main body part and a vacuum cleaner body provided with a dust collector, and an extension pipe connected to the vacuum cleaner body,
The main body is
A main body connection port to which the extension pipe is connected;
An electric blower that is at least partially located on the axis of the extension pipe and communicates with the main body connection port via the dust collector;
A gripping part located on the opposite side to the main body connection port with respect to the electric blower;
A power supply unit serving as a power supply for the electric blower,
The dust collector is located on the opposite side of the center of gravity of the power supply unit with respect to the axis of the extension pipe,
The electric blower has a suction side on the grip portion side and an exhaust side on the main body connection port side.
A vacuum cleaner characterized by that. The vacuum cleaner according to claim 1 or 2 , wherein the dust collector is located on the opposite side of the power supply unit with respect to the axis of the extension pipe . The electric vacuum cleaner according to any one of claims 1 to 3 , wherein the gripping part is located on a side opposite to a center of gravity of the power supply part with respect to an axis of the extension pipe . The gripping portion is arranged to be connected between an end portion side of the power supply unit away from the main body connection port and an end side of the dust collector away from the main body connection port. The vacuum cleaner as described in any one of Claims 1 thru | or 4. The gripping unit has a setting unit for setting the operation of the electric blower,
The vacuum cleaner according to any one of claims 1 to 5, wherein the setting unit is located on a side opposite to the power supply unit with respect to an axis of the extension pipe. Said body portion, said collecting intake communication port connected to the inlet of the precipitator, the current claim and the exhaust communication port connected to the exhaust port, and characterized in that is provided in the precipitator 1 The vacuum cleaner as described in any one of thru | or 6. The vacuum cleaner according to any one of claims 1 to 7, wherein the power supply unit is provided in a direction away from the axis of the extension pipe as the power supply unit is separated from the main body connection port. The electric vacuum cleaner according to any one of claims 1 to 8, wherein a central axis of the electric blower is parallel to an axis of the extension pipe on the opposite side of the dust collector.

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