Vacuum cleaner

Abstract

To provide a vacuum cleaner capable of suppressing stirring-up of dust when discarding the dust by collecting the dust inside a dust collection part when a user puts a rechargeable vacuum cleaner on a charging base.SOLUTION: A vacuum cleaner includes: a cleaner body 2 having a dust case; and a charging base 5 on which the cleaner body 2 is placed. The charging base 5 includes: an opening part for holding the cleaner body 2; and a dust container 54 for storing dust from the cleaner body 2. The dust case includes: an opening surface arranged in a lower part; an openable bottom lid 25 arranged in the opening surface; and a flange part 23 formed on an outer peripheral side of the opening surface. The opening part is formed to be larger than an outer diameter of the opening surface and to be smaller than a diameter of the outer peripheral side including the opening surface and the flange part 23.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a charging stand for a vacuum cleaner. [Background technology]

[0002] Background of the present technical field is JP-A-5-84161 (Patent Document 1). The charging stand in this publication is configured to suck dust in a dust collection chamber into a dust bag through a suction port (suction body) and charge a storage battery.

[0003] In addition, there is JP 2019-217206 A (Patent Document 2). This publication describes an autonomous vacuum cleaner (cleaning robot) that transfers dust in a dust collection unit to a dust station. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 5-84161 [Patent Document 2] JP 2019-217206 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the vacuum cleaner described in Patent Document 1 is designed to suck dust into a dust bag via a suction body, and in suction bodies equipped with a rotating cleaning body (rotating brush) that are widely used today, the rotating brush is interposed in the flow path from the dust collection chamber to the dust bag, which interferes with the transfer of dust.

[0006] Furthermore, the cleaning robot described in Patent Document 2 does not consider a method for disposing of the dust accumulated in the dust station, and there is a concern that dust may fly up when disposing of the dust in the dust station.

[0007] An object of the present invention is to provide a vacuum cleaner that can collect dust in a dust collection section when a user places the rechargeable vacuum cleaner on a charging stand and can prevent dust from flying up when disposing of the dust. [Means for solving the problem]

[0008] The present invention relates to a vacuum cleaner having a dust collecting unit. Body and , a charging station on which the vacuum cleaner body is placed Table and In the electric vacuum cleaner having the above-mentioned, the charging base has an opening for holding the vacuum cleaner body and a dust container for collecting dust from the vacuum cleaner body, and the dust collecting unit has an opening surface on a lower side, a cover body that can be opened and closed on the opening surface, and a flange portion formed on the outer circumferential side of the opening surface, A rotation mechanism that rotates around an end portion on one side of the opening surface; having A protrusion is formed on the upper part of the charging stand, and when the vacuum cleaner body is placed on the charging stand, a button on the vacuum cleaner body is pressed by the protrusion. It is characterized by: Effect of the Invention

[0009] According to the present invention, by providing a dust container on the charging stand, it is possible to prevent dust from flying up when disposing of trash, and by collecting the dust inside the dust case every time cleaning is performed, it is possible to prevent dust from accumulating too much and causing dust to adhere to the inner tube, and to prevent long hair from becoming entangled, thereby greatly reducing the frequency of maintenance of the dust case. [Brief description of the drawings]

[0010] [Figure 1] 1 is a perspective view showing the overall appearance of a vacuum cleaner placed on a charging stand according to the present invention; [Diagram 2] FIG. 1 is a perspective view of a charging stand according to a first embodiment of the present invention. [Diagram 3] 3 is a perspective view showing a state in which an upper part of the stand of the charging stand shown in FIG. 2 is removed. [Figure 4] FIG. 2 is a front view of an upper part of the stand according to the first embodiment of the present invention. [Diagram 5] 5 is a perspective view showing a state in which a dust container is removed from the upper part of the stand shown in FIG. 4. [Figure 6] FIG. 6 is a perspective view of the dust container shown in FIG. 5 with a vinyl bag attached thereto. [Figure 7]2 is a cross-sectional view taken along the line AA shown in FIG. 1. [Figure 8] FIG. 1 is a perspective view showing a charging stand and a suction mouth body according to a first embodiment of the present invention. [Figure 9] FIG. 3 is a central cross-sectional view of the charging stand shown in FIG. 2, showing the internal air flow. [Figure 10] 1 is a cross-sectional view showing an entire vacuum cleaner placed on a charging stand according to a second embodiment of the present invention (a cross-section taken along line AA in FIG. 1). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS EXAMPLES

[0011] A charging stand according to a first embodiment of the present invention will be described below with reference to the drawings.

[0012] 1 shows a perspective view of the appearance of a vacuum cleaner placed on a charging stand according to the present invention. The vacuum cleaner 1 comprises a vacuum cleaner main body 2, an extension tube 3, and a suction mouth body 4.

[0013] The vacuum cleaner body 2 is equipped with an electric blower (not shown) that generates suction force inside, a dust case 20 that contains dust collected by the suction force of the electric blower, and a hand-operated switch 11 on the handle (handle 12).

[0014] One end of the extension pipe 3 is connected to a connection port 13 of the vacuum cleaner body 2 so as to communicate with the dust case 20 of the vacuum cleaner body 2. The other end of the extension pipe 3 is connected to a suction mouth body 4.

[0015] Further, the extension pipe 3 is connected to an air passage (not shown) and is provided with a power supply terminal (not shown) to which power is supplied from the vacuum cleaner body 2 .

[0016] When the hand-operated switch 11 is operated, a main body control circuit (not shown) controls the operation and stopping of the electric blower, switching of suction power, and the operation and stopping of the electric motor (not shown) provided in the suction body 4. The power source for driving the vacuum cleaner body 2 and the suction body 4 is a rechargeable battery 15.

[0017] Fig. 2 is a perspective view showing the charging stand 5 of this embodiment. The charging stand 5 shown in Fig. 2 has the vacuum cleaner 1 removed. Fig. 3 is a perspective view showing the charging stand 5 with the stand upper part 51 removed.

[0018] As shown in Figures 2 and 3, the charging stand 5 is made up of a base section 53 and a stand section 50. The stand section 50 is made up of an upper stand section 51 and a lower stand section 52, and the upper stand section 51 communicates with the lower stand section 52 and is detachably connected thereto. The lower stand section 52 communicates with the base section 53 and is detachably connected thereto. (The lower stand section 52 and the base section 53 do not necessarily have to be detachable from each other.) Also, this embodiment does not show a means for charging the rechargeable battery 15 provided in the vacuum cleaner main body 2, but for example, a means is available in which a main body charging terminal is provided on the side of the vacuum cleaner main body 2, and the user inserts a DC plug of a separate AC-DC adapter into the main body charging terminal after placing the vacuum cleaner 1 on the charging stand 5. Alternatively, there is also a means in which a charging board and AC cord are provided on the base part 53, a charging stand charging terminal that conducts electricity with the charging board is provided on the stand upper part 51, and the vacuum cleaner main body 2 is provided with a main body charging terminal, and when the vacuum cleaner 1 is placed on the charging stand 5, the main body charging terminal and the charging stand charging terminal come into contact to supply power.

[0019] The base portion 53 is provided with locking portions 57 that restrict the forward movement of the suction body 6 when the vacuum cleaner 1 is attached, and the locking portions 57 are recessed on the left and right sides when viewed from the front of the suction body 4. In other words, a recess 58 is provided in the center.

[0020] Further, the base portion 53 is provided with a hole 59 for sucking out the air inside the charging stand 5, the details of which will be described later.

[0021] 4 is a front view of the stand upper part 51 that can be detached from the stand part 50. As shown in FIG. 4, the stand upper part 51 is assembled so as to include a part (upper side) of the dust container 54 therein, and the dust container 54 is fixed so as to be detachable. The stand upper part 51 is a frame body with openings on the top and bottom, and the dust container 54 is a quadrangular pyramid-shaped container that is open on the top and narrows downward. The dust container 54 is inserted from the bottom side of the stand upper part 51. In this embodiment, the stand part 50 is in the shape of a quadrangular prism, but it may be in the shape of a cylinder. In the case of a cylinder, the stand upper part 51 may be a cylindrical frame body, and the dust container 54 may be a truncated cone-shaped container narrowing downward.

[0022] 1, the opening 51a on the top surface of the stand upper portion 51 comes into contact with the flange portion 23 provided on the lower exterior surface of the dust case 20 when the vacuum cleaner main body 2 is placed thereon. In detail, the opening 51a is larger than the opening at the bottom of the dust case 20 (the diameter of the bottom of the dust case 20) and smaller than the diameter of the flange portion 23 described above, and is structured so that the opening 51a fits into the lower portion of the dust case 20. This is because the opening 51a is covered by the lower portion of the dust case 20, and also has the effect of fixing the vacuum cleaner 1 to the charging stand 5 when it is placed thereon.

[0023] Furthermore, although the details of its function will be described later, the protrusion 60 on the top surface of the stand upper portion 51 is provided for opening the bottom lid 25 of the dust case 20 when the lower portion of the dust case 20 of the vacuum cleaner body 2 is fitted into the opening 51a of the stand upper portion 51.

[0024] Dust container 54 has an outer surface with vertical unevenness, and groove portion 54a has hole 55. By providing hole 55 in groove portion 54a on the surface of dust container 54, it is possible to increase the gap between the inner wall surface of stand upper portion 51 when dust container 54 is attached to stand upper portion 51, which has the effect of improving air flow, which will be described later.

[0025] 5 is a perspective view of the dust container 54 removed from the stand upper part 51. The clamp 56 provided on the dust container 54 has a cylindrical protrusion 56a, and the clamp 56 can be tilted toward the inside of the dust container 54 by the notches on the left and right, and returns to its original position even when tilted due to the rigidity of the material. When the dust container 54 is attached to the stand upper part 51, the protrusion 56a of the clamp 56 comes into contact with the inner wall surface of the stand upper part 51, and the clamp 56 is tilted toward the inside of the dust container 54. When the dust container 54 is pushed upward, the hole 51b provided on the side of the stand upper part 51 and the protrusion 56a fit together, and the dust container 54 is fixed to the stand upper part 51.

[0026] 6 is a perspective view of dust container 54, showing a state in which plastic bag 70 is attached to dust container 54. When dust container 54 is inserted from the underside of stand upper portion 51 with plastic bag 70 attached to dust container 54, plastic bag 70 is fixed inside stand upper portion 51.

[0027] 7 is a cross-sectional view of the AA line shown in FIG. 1 when the vacuum cleaner 1 is placed on the charging stand 5 after cleaning is completed. When the vacuum cleaner 1 is placed on the charging stand 5, the dust disposal button 21 provided on the dust case 20 of the vacuum cleaner main body 2 is pressed by the protrusion 60 provided on the upper surface of the stand upper part 51, and the bottom cover 25 opens in the stand upper part 51. At this time, although the details of the structure are omitted, the dust discharge mechanism 22 provided on the dust case 20 pushes the dust 80 inside the dust case 20 downward, and the dust 80 is discharged into the dust container 54. As described above, since the plastic bag 70 is attached to the dust container 54, the dust 80 is contained within the plastic bag 70. In a conventional cyclone vacuum cleaner, when the dust in the dust case 20 is discharged, for example, into a trash can, the dust may fly up when the dust is discharged. However, in the present invention, the lower part of the dust case 20 and the flange part 23 cover the opening 51a of the dust container 54, so that the dust can be prevented from flying up after the dust is discharged. Moreover, dust that has been stirred up inside dust container 54 and stand upper portion 51 settles over time, and will not be stirred up the next time vacuum cleaner 1 is removed for cleaning. Furthermore, when vacuum cleaner 1 is removed, the inside of dust container 54 can be seen through opening 51a on the top surface of stand upper portion 51, making it easy to visually check the amount of dust that has accumulated.

[0028] Next, the hole 59 provided in the base portion 53 of the charging stand 5 for sucking out the air inside the charging stand 5 will be described (see Figs. 2 and 3). Fig. 8 is an external perspective view showing the state in which the suction body 4 of the vacuum cleaner 1 is placed on the base portion 53 facing the charging stand 5. Fig. 9 shows a central cross-sectional side view of the charging stand 5, with the arrows in the figure indicating the air flow. Fig. 9 also shows the state in which a vinyl bag 70 is attached to the dust container 54.

[0029] When the suction body 4 is placed facing the charging stand 5, the movable part 4a of the suction body 4 fits into the recess 58 provided in the base part 53, thereby minimizing the gap between the bottom surface of the suction body 4 and the surface of the base part 53 on which the hole 59 is provided. This is to increase the amount of air sucked in from the hole 59 when the operation switch 11 of the vacuum cleaner main body 2 is pressed down to operate the vacuum cleaner in the state shown in Figure 8.

[0030] As shown in FIG. 8, when the operation switch 11 of the vacuum cleaner main body 2 is pressed to operate the vacuum cleaner with the suction mouth body 4 placed on the base part 53, the air inside the charging stand 5 is sucked out from the hole 59 provided in the base part 53 in the direction of the arrow shown in FIG. 9. Since the plastic bag 70 is attached, the sucked air flows from the outside of the plastic bag 70 to the inside of the dust container 54, through the hole 55 provided in the dust container 54, from the outside of the dust container 54 to the inside of the stand lower part 52 and the base part 53. By sucking out the air outside the plastic bag 70 and inside the dust container 54, the plastic bag 70 sticks to the inner wall surface of the dust container 54, and the plastic bag 70 inside the dust container 54 can be expanded to a shape that fits the inside of the dust container 54. As a result, the plastic bag 70 does not get in the way when the dust is discharged, and the dust can be dropped to the bottom of the dust container 54, and the plastic bag 70 can be used effectively. In this embodiment, hole 55 is provided in dust container 54 and hole 59 is provided in the base portion, but as described above, these holes are provided to allow plastic bag 70 to be expanded by the suction force of vacuum cleaner 1, and when attaching plastic bag 70 to dust container 54, the holes do not need to be provided if the user simply pushes it open with his or her hand.

[0031] As described above, by providing the charging base 5 with the dust container 54, it is possible to prevent dust from flying around when disposing of trash. In addition, since the charging base 5 also functions to charge the vacuum cleaner main body 2, the electric vacuum cleaner 1 is placed on the charging base 5 every time it is used. Therefore, since the dust inside the dust case 20 is collected every time cleaning is performed (every time charging is performed), it is possible to prevent dust from adhering to the inner cylinder 30 due to excessive dust accumulation and tangling of long hair, etc., and it is possible to greatly reduce the frequency of maintenance of the dust case 20. EXAMPLES

[0032] Second Embodiment A second embodiment of the present invention will now be described with reference to Fig. 10. Fig. 10 is a cross-sectional view taken along line AA of Fig. 1, and arrows (solid and dashed arrows) shown in the figure indicate the flow of air inside charging stand 5.

[0033] The charging stand 5 of the second embodiment has an electric blower 91 and a paper bag 90 inside. As in the first embodiment, when the vacuum cleaner 1 is placed on the charging stand 5 after cleaning is completed, the bottom cover 25 of the dust case 20 provided in the vacuum cleaner body 2 opens and the sucked-up dust is discharged. The second embodiment is characterized in that when the vacuum cleaner 1 is placed on the charging stand, the electric blower 91 is driven and the dust 80 in the dust case 20 is forcibly collected in the paper bag 90. The charging stand 5 is composed of a stand section 50 and a base section 53, and the stand section 50 is divided into three chambers as shown in the figure.

[0034] The first room is the stand upper part 51, the second room is a dust collection case 61 in which a paper pack 90 can be attached, and the third room is a motor case 71 equipped with an electric blower 91, and the respective spaces (rooms) are connected to each other.

[0035] Although not shown, a switch (such as a tactile switch) for driving the electric blower 91 is provided on the upper surface of the stand upper part 51 of the charging stand 5. The switch is located in a position where it can be pressed by the dust case 20 or the like when the vacuum cleaner main body 2 is placed thereon.

[0036] The upper part 51 of the stand only needs to be higher than the trajectory of the rotation of the bottom cover 25 of the dust case 20, and the space gradually narrows in a cone shape toward the hole (the entrance of the paper pack 90) communicating with the second room, allowing dust to be smoothly contained within the paper pack 90.

[0037] As described above, the dust collection case 61 is a chamber in which the paper pack 90 is attached. The dust collection case 61 has a fixing part (not shown) for fixing the inlet of the paper pack 90 on the upper surface, and has a plurality of holes on the lower surface that communicate with the third chamber. The holes on the lower surface may be latticed or meshed as long as the paper pack 90 does not fall, and it is desirable to make the opening area as large as possible.

[0038] Further, the side of the dust collection case 61 is provided with a lid (not shown) for attaching and detaching the paper pack 90. ​​The lid is fixed with a hinge or the like and has a structure that allows it to be opened and closed, and it is desirable that when closed, the lid is kept airtight with a packing or the like and that a locking mechanism is provided. Generally, the charging base 5 is often installed against a wall, so the lid is provided on the side of the charging base 5, but this is not limited and the lid may be provided on the back.

[0039] The motor case 71 communicates with the underside of the dust collection case 61, and supports and fixes the electric blower 91 in an anti-vibration manner inside. In this embodiment, a bell-mouth shaped flow path is provided from the underside of the dust collection case 61 to the inlet of the electric blower 91, but the electric blower 91 may be raised to shorten the distance from the dust collection case 61. In this embodiment, the dust collection case 61 is provided at an upper position for ease of use so that the user does not have to bend down when attaching and detaching the paper bag 90, but the dust collection case 61 may be lowered to reduce the height of the motor case 71.

[0040] Motor case 71 communicates with base portion 53, and base portion 53 includes a drive circuit board 93 for electric blower 91, and exhaust holes 92. Exhaust holes 92 may be provided in motor case 71 as long as they are on the exhaust side of electric blower 91.

[0041] When the electric vacuum cleaner 1 is placed on the charging stand 5 having such a structure, the bottom cover 25 of the dust case 20 of the vacuum cleaner main body 2 opens and at the same time, the switch on the upper part 31 of the stand is pressed, and the electric blower 91 is driven. Then, the suction force of the electric blower 91 draws in outside air from the suction body 4 and the exhaust port (not shown) of the vacuum cleaner main body 2. The intake air from the suction body 4 passes through the extension tube 3, inside the dust case 20, and reaches the paper bag 90. The intake air from the exhaust port of the vacuum cleaner main body 2 passes through the exhaust port, the electric blower (not shown), the filter (not shown), the inside of the inner cylinder 30, and reaches the paper bag 90. Therefore, not only the dust 80 but also the dust and the like attached to the inner wall of the dust case 20 due to static electricity and the like are forcibly collected in the paper bag 90. It is desirable that the driving of the electric blower 91 at this time automatically stops after a predetermined time has elapsed.

[0042] As in this embodiment, by forcibly sucking the dust in the dust case 20 with the electric blower 91, the dust that is stirred up when the garbage is thrown out can be efficiently sucked in, and the dust that has adhered to the inner wall surface of the dust case 20 due to static electricity or the like can also be collected, so that the inside of the dust case 20 can be kept clean. In addition, since the charging base 5 also functions to charge the vacuum cleaner main body 2, the electric vacuum cleaner 1 is placed on the charging base 5 every time it is used. Therefore, since the dust in the dust case 20 is collected every time cleaning is performed (every time charging is performed), it is possible to prevent dust from adhering to the inner cylinder 30 due to excessive dust accumulation and to prevent long hair from getting tangled, and the frequency of maintenance of the dust case 20 can be significantly reduced. [Explanation of symbols]

[0043] 1. Vacuum cleaner 2 Vacuum cleaner body 3 Extension tube 4 Mouthpiece 5 Charging stand 20 Dust Case 21 Trash disposal button 22 Garbage Discharge Mechanism 23 Flange 25 Bottom lid 30 Inner cylinder 50 Stand section 51 Upper part of stand 51a opening 52 Lower Stand 53 Base 54 Dust container 55, 59 holes 56 Clamp 56a Convex part 60 Protrusion 70 Plastic Bags 80 Dust 90 paper packs 91 Electric blower 92 Exhaust Vent

Claims

1. A vacuum cleaner including a vacuum cleaner body having a dust collecting unit and a charging stand on which the vacuum cleaner body is placed, the charging stand includes an opening for holding the vacuum cleaner body and a dust container for collecting dust from the vacuum cleaner body; The dust collecting section has an opening surface on a lower side, a cover body that can be opened and closed on the opening surface, a flange portion formed on an outer circumferential side of the opening surface, and a rotation mechanism that rotates the cover body around an end portion on one side of the opening surface as an axis, A protrusion is formed on an upper portion of the charging stand, and when the vacuum cleaner body is placed on the charging stand, a button of the vacuum cleaner body is pressed by the protrusion.

2. A vacuum cleaner as claimed in claim 1, When the button is pressed, the cover can be opened or closed.

3. A vacuum cleaner as claimed in claim 1, the opening, at a contact surface between the dust collecting unit and the charging base, is larger than an inner dimension of a lower end surface of the dust collecting unit and smaller than an outer dimension of the lower end surface of the dust collecting unit.

4. A vacuum cleaner as claimed in claim 1, an area of ​​the opening at a contact surface between the dust collecting unit and the charging base is larger than an area of ​​the opening surface, and is smaller than a combined area of ​​the opening surface and an area of ​​a lower end surface of the flange portion.

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