vacuum cleaner

Abstract

The present invention provides an electric vacuum cleaner that prevents dust from spilling out of the suction port during use and prevents dust from spilling when replacing the dust collection filter. [Solution] The electric vacuum cleaner of the present invention comprises a vacuum cleaner body 10, an electric blower housing (motor chamber 10f) housing an electric blower 14, a dust collection section 12 on which a dust collection filter 120 comprising a support plate 122 with an opening and a bag member 121 can be attached and detached, an intake port 101b for sucking in air containing dust, and a handle section 13 for the user to grip. The upper surface of the vacuum cleaner body 10 has a straight section formed linearly from the intake port 101b to the dust collection section 12. The upper surface of the handle section 13 is provided on and / or below the straight section.

Description

Technical Field

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[0001] The present invention relates to a vacuum cleaner.

Background Art

[0002] As a vacuum cleaner in which a user holds a handle portion provided on a cleaner body to perform cleaning, there is a stick-type vacuum cleaner. The stick-type vacuum cleaner includes an electric blower and a dust collection portion in the cleaner body, and collects dust sucked from a suction port body through an extension pipe connected to the cleaner body in the dust collection portion.

[0003] Also, a general stick-type vacuum cleaner can be used as a handy-type vacuum cleaner that removes an extension pipe connected to the cleaner body and sucks dust from the suction port of the cleaner body.

[0004] In a stick-type vacuum cleaner, it is common that the electric blower, the dust collection portion, and the suction port are in a straight line. Such a vacuum cleaner is disclosed in, for example, Patent Document 1.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] When using the vacuum cleaner disclosed in Patent Document 1, the user holds the handle portion behind the cleaner body and tilts the cleaner body with the front side down to suck dust from the suction port of the cleaner body.

[0007] However, the vacuum cleaner disclosed in Patent Document 1 has a problem in that, because the dust collection unit and the suction port are arranged in a straight line, dust that has entered the dust collection unit will leak out if the vacuum cleaner body is tilted. In addition, the vacuum cleaner disclosed in Patent Document 1 has a problem in that when replacing the dust collection filter, it is necessary to pull it straight up, and dust will spill out during replacement.

[0008] The object of the present invention is to provide an electric vacuum cleaner that prevents dust from spilling out of the suction port during use and prevents dust from spilling when replacing the dust collection filter. [Means for solving the problem]

[0009] To achieve the above objective, the present invention provides an electric vacuum cleaner comprising: a vacuum cleaner body; an electric blower housing for housing an electric blower; a dust collection unit on which a dust collection filter comprising a support plate having an opening and a bag member can be attached and detached; a suction port for sucking in air containing dust; and a handle for the user to grip, wherein the upper surface of the vacuum cleaner body has a straight section formed linearly from the suction port to the dust collection unit, and the upper surface of the handle is provided substantially on the straight section and / or below the straight section. [Effects of the Invention]

[0010] According to the present invention, it is possible to prevent dust from spilling out of the suction port during use and to prevent dust from spilling when replacing the dust collection filter. [Brief explanation of the drawing]

[0011] [Figure 1] This is an external perspective view of an electric vacuum cleaner stored in a stand according to Embodiment 1 of the present invention. [Figure 2] This is an external perspective view of a vacuum cleaner used as a stick-type vacuum according to Embodiment 1 of the present invention. [Figure 3] This is an external perspective view of an electric vacuum cleaner used as a handheld vacuum according to Embodiment 1 of the present invention. [Figure 4]This is a cross-sectional view of the vacuum cleaner body 10 of the electric vacuum cleaner 1, cut along the front-to-back direction. [Figure 5] This is a perspective view of the dust collection filter 120 according to Embodiment 2 of the present invention in a folded state. [Figure 6] This is a perspective view of the dust collection filter 120 according to Embodiment 2 of the present invention when it is being disposed of. [Figure 7] This figure shows the state in which the dust collection filter 120 is removed from the dust collection unit 12 of the vacuum cleaner 1 according to Embodiment 2 of the present invention. [Figure 8] This is an enlarged view of the main part of Figure 7, showing the opening operation function of the dust collection cover 11. [Figure 9] This is an exploded perspective view of the vacuum cleaner 1 according to Embodiment 2 of the present invention, with the filter frame 18 and protective filter 180 removed. [Figure 10] This is a side view showing the operation of the filter frame 18 when pulling out the dust collection filter 120 in an inflated state, with (A) showing the state before pulling out the dust collection filter 120 and (B) showing the state after pulling out the dust collection filter 120. [Figure 11] This is an exploded perspective view of the vacuum cleaner 1, with the connecting pipe 101 and dust collection unit 12 disassembled according to Embodiment 3 of the present invention. [Figure 12] This is an exploded perspective view showing the button cover 102 removed from the connecting pipe 101 according to Embodiment 3 of the present invention. [Figure 13] This is a perspective view showing the state after attaching the button cover 102 to the connecting pipe 101, as shown in Figure 12. [Figure 14] This is a front view of the mouth packing 103 according to Embodiment 3 of the present invention. [Figure 15] This is a rearward perspective view of the mouth packing 103 according to Embodiment 3 of the present invention. [Figure 16] This is a bottom view of the vacuum cleaner 1 according to Embodiment 4 of the present invention, viewed from below. [Figure 17] This is a left side view of the vacuum cleaner 1 according to Embodiment 4 of the present invention, as seen from the left side. [Figure 18]It is an exploded perspective view of the connecting pipe 101, the lower case 10a, and the upper case 10b according to Example 5 of the present invention in a disassembled state. [Figure 19] It is a perspective view of the dust collection part packing 127 removed from the packing chamber 10e according to Example 5 of the present invention in a removed state. [Figure 20] It is an external perspective view of the vacuum cleaner shown in a state of being stored in the stand according to Example 6 of the present invention and a perspective view of the vacuum cleaner main body. [Figure 21] It is a perspective view of the dust collection filter case according to Example 6 of the present invention. [Figure 22] It is a sectional view taken along the A-A line of the vacuum cleaner main body in FIG. 20 of the present invention. [Figure 23] It is a diagram showing a series of operations when removing the dust collection filter according to Example 6 of the present invention.

Mode for Carrying Out the Invention

[0012] Hereinafter, embodiments of the present invention will be described with reference to the drawings. For the same elements, the same reference numerals are generally used in all the drawings. Also, for parts having the same function, the description will be omitted. Note that the configurations described below are merely examples, and the embodiments of the present invention are not intended to be limited to the following specific forms.

Example

[0013] FIG. 1 is an external perspective view of the vacuum cleaner shown in a state of being stored in the stand according to Example 1 of the present invention. FIG. 2 is an external perspective view of the vacuum cleaner shown in a state of being used as a stick type according to Example 1 of the present invention. FIG. 3 is an external perspective view of the vacuum cleaner shown in a state of being used as a handy type according to Example 1 of the present invention. FIG. 4 is a sectional view of the cleaner main body 10 of the vacuum cleaner 1 cut along the front-rear direction. In Example 1, as shown by the arrows, the front-rear, left-right, and up-down directions are defined from the viewpoint of the user performing cleaning.

[0014] As shown in Figures 1 and 2, the electric vacuum cleaner 1 comprises a vacuum cleaner body 10 that forms the outer casing, an extension pipe 20 with one end connected to the vacuum cleaner body 10 via a connecting pipe 101, and a suction nozzle 30 connected to the other end of the extension pipe 20. In addition, the electric vacuum cleaner 1 of Embodiment 1 is provided with a brush portion 40 on the outer circumference of the connecting pipe 101. The connecting pipe 101 is fixed in front of the vacuum cleaner body 10, and an air intake passage 101a is formed inside the connecting pipe 101, which communicates with the internal passage of the extension pipe 20.

[0015] The extension tube 20 is connected to the vacuum cleaner body 10 via the connecting tube 101. The electric vacuum cleaner 1 is placed on the stand 50 when not in use. The upper part of the connecting tube 101 is equipped with a lock button 102a to prevent the extension tube 20 from coming loose when the extension tube 20 is connected, and a button cover 102 that covers the lock button 102a.

[0016] The vacuum cleaner body 10 is composed of a lower case 10a and an upper case 10b positioned above the lower case 10a. The lower case 10a consists of a pack chamber 10e that houses the dust collection filter 120 and a motor chamber 10f (electric blower housing) that houses the electric blower 14. The vacuum cleaner body 10 also includes a dust collection unit 12 that collects the inhaled dust, a dust collection lid 11 that opens and closes to cover the top of the dust collection unit 12, and a handle 13 that the user grips when cleaning. The handle 13 is formed from a part of the upper case 10b, which has an exhaust port. The dust collection lid 11 opens and closes around a pivot axis 105 and is biased in the opening direction by a coil spring 110 (Figure 8), which will be described later. The dust collection lid 11 also holds the dust collection unit 12 in a closed state by a dust collection lid clamp 112. The lower case 10a, which forms the lower side of the dust collection section 12, is equipped with a dust collection packing 127 (Figure 8). When the dust collection lid 11 is closed, the dust collection lid 11 comes into contact with the dust collection packing 127, maintaining airtightness inside the dust collection section 12.

[0017] By forming the dust collection cover 11 from a translucent material, the bulge of the dust collection filter 120 can be confirmed, and the design can be further improved.

[0018] A rib 10d is formed on the lower case 10a near the rear of the dust collection lid claw 11a that catches on the dust collection lid clamp 112. This prevents the dust collection lid claw 11a from coming off the dust collection lid clamp 112 when the user lifts the vacuum cleaner 1 by holding the handle 13 while using it as a stick type, as the rib 10d presses down on the dust collection lid claw 11a, causing the entire vacuum cleaner body 10 to bend and flex.

[0019] Inside the vacuum cleaner body 10 are an electric blower 14 (Figure 4) that generates suction force, a control board 15 (Figure 4) that implements a control device for controlling the electric blower 14, and a battery pack 16 located behind the electric blower 14 that has multiple rechargeable batteries to supply power to the electric blower 14.

[0020] The handle section 13 is equipped with an operating switch 17 for turning the electric blower 14 on and off and adjusting the suction force.

[0021] As shown in Figure 4, the dust collection unit 12 is equipped with a removable disposable dust collection filter 120 that collects and filters dust sucked in from the suction passage 101a. The dust collection filter 120 consists of a bag member 121 that is breathable and flexible and collects dust, and a support plate 122 with an inlet 122a formed in the center. The support plate 122 is inserted along a guide groove provided in the dust collection unit 12 and its upper part is fixed to the dust collection unit 12 by a support plate clamp 104.

[0022] The dust collection filter 120 is attached to the dust collection unit 12 by fixing the support plate 122 with the support plate clamp 104.

[0023] With the central axis of the suction passage 101a (central axis A of the suction port 101b) in a horizontal position, the support plate 122 is mounted on the dust collection unit 12 at an angle such that its upper part is positioned behind its lower part. In other words, the central axis A of the suction port 101b and the central axis E of the dust collection filter 120 and the support plate 122 are not parallel, but are in a relationship of approximately 20° inclination (different angles). A mouth packing 103 is provided between the connecting pipe 101 and the dust collection unit 12. The mouth packing 103 is formed by an inflow passage 103a (central axis C) that communicates with the suction passage 101a of the connecting pipe 101, and a rear lip 103c (central axis E) that abuts against the support plate 122. The mouth packing 103 is made of a flexible material. For example, by using SBR as a flexible material and providing a mating surface between the mold on the inlet passage 103a side and the mold on the rear lip 103c side on the side of the check valve 103d, a thin plate portion can be created on the side of the check valve 103d, and this thin plate portion acts as a thread rib, thereby reducing the gap between the check valve 103d and the inlet passage 103a. Reducing the gap between the check valve 103d and the inlet passage 103a prevents dust accumulated in the dust collection filter 120 from flowing back into the inlet passage 103a side. A lip shape is provided at the tip of the front lip 103b of the mouth packing 103, and airtightness is maintained by contact with the support plate 122.

[0024] Dust sucked in from the intake port 101b of the intake passage 101a passes through the intake passage 101a and the inlet passage 103a of the mouth packing 103 together with the air, and is collected in the bag member 121 of the dust collection filter 120 from the inlet 122a of the support plate 122. The dust sucked into the bag member 121 is filtered by the bag member 121, and the air that has passed through the bag member 121 passes through the protective filter 180 and the opening 12b for the electric blower and is drawn into the electric blower 14. The protective filter 180 is positioned between the dust collection filter 120 and the opening 12b for the electric blower in order to prevent dust leaking out of the bag member 121 from being drawn into the electric blower 14. The protective filter 180 is supported by a filter frame 18 that is slidable in a substantially vertical direction and is mounted on the dust collection unit 12.

[0025] The electric blower 14 comprises a fan 141 that generates suction force and an electric motor 143 that is connected to the fan 141 via a rotating shaft 142 and rotates the fan 141. The rotational center line D of the rotating shaft 142 of the electric blower 14 is inclined downward toward the downstream (rear) side.

[0026] A battery pack 16, which supplies power to the electric blower 14, is located downstream (rear) of the electric blower 14.

[0027] When used as a stick-type electric vacuum cleaner, the suction nozzle 30 is connected to the connecting pipe 101 of the vacuum cleaner body 10 via the extension pipe 20, as shown in Figure 2. The user grasps the handle 13 and operates the operation switch 17 to drive the electric blower 14, moving the suction nozzle 30 in the forward and backward directions. The suction force of the electric blower 14 generates suction force on the suction nozzle 30. Dust sucked in from the suction nozzle 30 passes through the extension pipe 20 and is collected in the dust collection filter 120 of the dust collection unit 12.

[0028] Furthermore, when using it as a handheld electric vacuum cleaner, the extension pipe 20 is removed from the connecting pipe 101 of the vacuum cleaner body 10, as shown in Figure 3. By removing the extension pipe 20 from the connecting pipe 101, the suction port 101b of the suction passage 101a is exposed. The user grasps the handle 13 and operates the operation switch 17 to drive the electric blower 14 and move the connecting pipe 101. Then, dust is sucked directly into the suction port 101b, and the sucked-in dust is collected in the dust collection filter 120 of the dust collection unit 12.

[0029] In typical vacuum cleaners, the support plate 122 is perpendicular to the central axis A of the suction port 101b. Therefore, in order for the bag member 121 to expand sufficiently and secure the dust collection capacity, the top surface of the vacuum cleaner body is formed to gradually bulge upward from the suction port towards the rear of the vacuum cleaner body. However, when used as a handheld vacuum cleaner, the suction port is not visible, making it difficult to clean dust from the floor. A configuration to solve this problem will be explained using Figure 4.

[0030] In Figure 4, when the central axis of the suction port 101b is A and the center position of the inlet of the dust collection filter 120 (the center position of the inlet 122a of the support plate 122) is B, in Embodiment 1, the central axis A of the suction port 101b is positioned above the center position B of the inlet of the dust collection filter 120 (the center position of the inlet 122a of the support plate 122). In other words, the central axis A of the suction port 101b is positioned closer to the handle portion 13 than the center position B of the inlet of the dust collection filter 120 (the center position of the inlet 122a of the support plate 122).

[0031] Since a gasket 103 that slopes downward toward the downstream (rear) side is formed between the downstream (rear) side of the suction passage 101a and the inlet 122a of the dust collection filter 120, the center position B of the inlet of the dust collection filter 120 is located below the central axis A of the suction port 101b.

[0032] According to Example 1, the central axis A of the suction port 101b is positioned above the central position B of the inlet of the dust collection filter 120 (the central position of the inlet 122a of the support plate 122). Therefore, when used as a handheld vacuum cleaner, the suction port 101b is more easily visible from the user's perspective, improving operability during cleaning.

[0033] Furthermore, according to Example 1, the upper surface of the suction port 101b is formed linearly toward the handle portion 13 side (rear side) without any irregularities, thus improving the aesthetic appearance.

[0034] Furthermore, according to Example 1, since the central axis A of the suction port 101b and the central position B of the inlet of the dust collection filter 120 are offset from each other, when the vacuum cleaner body 10 is stood upright with the suction port 101b facing downwards, dust collected in the dust collection filter 120 spills out from the inlet 122a, and the spilled dust is prevented from being discharged to the outside from the suction port 101b.

[0035] Furthermore, in Example 1, when the central axis of the dust collection filter 120 is defined as E, the central axis A of the suction port 101b and the central axis E of the dust collection filter 120 are configured not to be parallel. This configuration prevents dust collected in the dust collection filter 120 from spilling out of the inlet 122a and being discharged to the outside from the suction port 101b when the dust collection filter 120 is removed from the dust collection unit 12.

[0036] In Embodiment 1, the user operates the vacuum cleaner 1 by gripping the handle portion 13, so a moment is applied to the user's hand. For this reason, it is preferable to reduce the moment applied to the user's hand when operating the vacuum cleaner 1 by gripping the handle portion 13. Therefore, in Embodiment 1, the handle portion 13 is configured to straddle the extension of the central axis A of the suction port 101b. In other words, the handle portion 13 of Embodiment 1 is configured to intersect the extension of the central axis A of the suction port 101b. By configuring Embodiment 1 as described above, the moment applied to the user's hand can be reduced, and the operability of the vacuum cleaner can be improved.

[0037] In vacuum cleaner 1, it is preferable to reduce airflow loss in order to improve dust collection efficiency. Therefore, in Embodiment 1, when the rotational center line of the rotational axis 142 of the electric blower 14 is taken as D, the rotational center line D of the rotational axis 142 of the electric blower 14 and the central axis E of the dust collection filter 120 are configured to be parallel. By configuring it in this way, airflow loss from the dust collection filter 120 to the electric blower 14 can be reduced, and dust collection efficiency can be improved. To further improve efficiency, the rotational center line D of the electric blower 14 and the central axis E of the dust collection filter 120 may be on a straight line. In particular, in vacuum cleaners equipped with a storage battery, the operating time of the electric blower 14 can be reduced by improving dust collection efficiency, and the weight of the vacuum cleaner can be reduced by miniaturizing the storage battery.

[0038] Furthermore, in the vacuum cleaner 1, it is desirable to make the dust collection section 12 larger in order to ensure sufficient dust collection capacity. However, in order to suppress a decrease in operability, it is preferable not to make the vacuum cleaner body 10 unnecessarily large. Therefore, in the first embodiment, the central axis C of the inflow passage 103a of the mouth packing is set at an angle (approximately 25° with respect to the central axis A) that is tilted further back than the central axis E of the support plate 122 of the dust collection filter 120. In other words, the central axis C of the inflow passage 103a and the central axis E of the support plate 122 of the dust collection filter 120 are set at different angles. With this configuration, the length of the inflow passage 103a in the front-to-back direction can be suppressed while ensuring the area of ​​the support plate 122, so that the length of the vacuum cleaner body 10 can be suppressed while making the dust collection section 12 larger.

[0039] Furthermore, it is desirable that the vacuum cleaner 1 be small. The battery pack 16 housed in the vacuum cleaner body 10 is larger in volume than the electric blower 14 in order to secure battery capacity, which tends to cause the vacuum cleaner body 10 to become large. Therefore, in Embodiment 1, when the central axis of the battery pack 16 is taken as G, the central axis G of the battery pack 16 is positioned above the rotation center line D of the rotation axis 142 of the electric blower 14. By configuring it in this way, it is possible to suppress the bulging of the part of the vacuum cleaner body 10 that houses the battery pack 16, and thus suppress the increase in the size of the vacuum cleaner body 10. In addition, in Embodiment 1, when the parallel lines of the control board 15 are taken as F, the parallel lines F of the control board 15 are not parallel to the rotation center line D of the rotation axis 142 of the electric blower 14. As mentioned above, the battery pack 16 is larger in volume than the electric blower 14, so in Embodiment 1, the control board 15 is positioned considering the volumes of the electric blower 14 and the battery pack 16. This helps to prevent the vacuum cleaner 1 from becoming too large.

[0040] Furthermore, it is desirable that the vacuum cleaner 1 be lightweight. This can be achieved by creating irregularities on the inside of the lower case 10a and upper case 10b that form the outer casing, so that the thickness of the outer casing changes (by topology lightweighting technology). It is desirable that the irregularities be thicker where strength is needed and thinner where it is not, and the shape may be determined by simulation.

[0041] Note that point P1 in Figure 4 indicates the center of gravity in the handheld configuration, and point P2 indicates the center of gravity in the stick configuration. [Examples]

[0042] Next, Example 2 will be described using Figures 5 and 6. In Example 2, the configuration of the dust collection filter 120 and the dust collection unit 12 will be described. Figure 5 is an external perspective view of the dust collection filter 120 according to Example 2 of the present invention in a folded state. Figure 6 is an external perspective view of the dust collection filter 120 according to Example 2 of the present invention when it is being disposed of. Components common to Example 1 are denoted by the same reference numerals, and their detailed descriptions are omitted.

[0043] The dust collection filter 120 comprises a quadrilateral support plate 122 made of cardboard or plastic, having an inlet 122a; a breathable bag member 121 made of paper, cloth, animal hair, or a nonwoven fabric such as plastic; and a sealing member 123 attached to the support plate 122. The bag member 121 is adhered to the back side of the support plate 122. In Embodiment 2, the sealing member 123 is attached to one of the quadrilateral support plates 122. In Embodiment 2, although the sealing member 123 is attached to the support plate 122, it may also be attached by adhering it to a part of the bag member 121.

[0044] The adhesive portion between the bag member 121 and the support plate 122 does not extend across the entire support plate 122, and the outer periphery of the support plate 122 is not adhered to the bag member 121. The bag member 121 is adhered around the opening of the support plate 122. When the support plate 122 is attached to the dust collection section 12 of the vacuum cleaner 1, it is secured by hooking onto the claws of the support plate clamp 104. However, if the bag member 121 is adhered to the outer periphery of the support plate 122, the claws of the support plate clamp 104 cannot hook onto the support plate 122, and there is a risk that the claws of the support plate clamp 104 may damage the bag member 121. For this reason, in Embodiment 2, the outer periphery of the support plate 122 is not adhered to the bag member 121. The portion where the support plate 122 and the bag member 121 are not bonded requires that at least one side of the support plate 122, that is, the side that catches on the claw of the support plate clamp 104, be bonded, but the other sides may be bonded all the way to the end of the support plate 122.

[0045] The sealing member 123 is attached to the back side of the support plate 122 in the portion where the support plate 122 and the bag member 121 are not bonded together. In Embodiment 2, it is attached to the upper back side of the support plate 122. When bonding the sealing member 123 to the upper back side of the support plate 122, it is preferable not to bond the area near the end of the support plate 122. This is because the upper side of the support plate 122 is fixed by hooking onto the claw portion of the support plate clamp 104, so in order to avoid damaging the sealing member 123, it is preferable not to bond the support plate 122 and the sealing member 123 in the portion that hooks onto the claw portion of the support plate clamp 104.

[0046] The sealing member 123 comprises a sealing portion 124 having an adhesive surface, and a release paper 125 (release portion) covering the adhesive surface. The sealing portion 124 and the release paper 125 are separated by the adhesive, with the release paper 125 located on the front side of the support plate 122 and the sealing portion 124 located on the back side of the support plate 122. The release paper 125 has a hooking hole 126 formed therein for hooking onto a projection 104a provided on the support plate clamp 104 of the vacuum cleaner 1.

[0047] When the release paper 125 of the sealing member 123 is peeled off from below (towards the hook hole 126), the adhesive surface of the sealing portion 124 is exposed. The sealing portion 124 is then folded over at the top of the support plate 122, and the exposed adhesive surface is brought into contact with the front surface of the support plate 122, thereby attaching the adhesive surface of the sealing portion 124 to the support plate 122. The inlet 122a of the support plate 122 is covered and sealed by the sealing portion 124, so that dust does not spill out from the inlet 122a when the dust collection filter 120 is disposed of, and it can be handled hygienically.

[0048] It is preferable that the sealing portion 124 closes the inlet 122a of the support plate 122 when the dust collection filter 120 is removed from the dust collection section 12 of the vacuum cleaner 1. The removal operation of the dust collection filter 120 will be explained with reference to Figure 7.

[0049] Figure 7 shows the state in which the dust collection filter 120 is removed from the dust collection section 12 of the vacuum cleaner 1 according to Embodiment 2 of the present invention. Figure 8 is an enlarged view of the main part of Figure 7 showing the opening operation function of the dust collection lid 11.

[0050] To attach the dust collection filter 120 to the dust collection section 12 of the vacuum cleaner 1, open the dust collection lid 11, insert the support plate 122 of the folded dust collection filter 120 (Figure 5) into the guide section so that it faces the outlet of the mouth packing 103, and hook the upper part of the support plate 122 onto the claw of the support plate clamp 104 to secure it. Also, hook the hooking hole 126 formed in the release paper 125 onto the projection 104a of the support plate clamp 104. Then close the dust collection lid 11.

[0051] As shown in Figure 8, the dust collection lid 11 is biased to open by a coil spring 110. The coil spring 110 is arranged in pairs side by side. One lower end 110a of the coil spring 110 is hooked onto the fixing part 106 of the vacuum cleaner body 10, and the other upper end 110b is in contact with the dust collection lid 11. This configuration biases the dust collection lid 11 to open. In addition, the upper end 110b of the coil spring 110 on the dust collection lid 11 side is bent toward the dust collection part 12 side. This makes it easier to attach the dust collection lid 11 during manufacturing and assembly, as the bent part acts as a guide when attaching the dust collection lid 11 while holding down the tip of the coil spring after attaching the coil spring 110 to the fixing part 106.

[0052] A communication opening 151 is formed in the inner wall 12a of the dust collection section 12, which is separated from the electric blower 14, and communicates with the space in which the control board 15 is housed. In the vacuum cleaner 1, the control software written on the control board 15 may be rewritten for maintenance or to fix malfunctions. In Embodiment 2, the configuration allows for rewriting of the control software by inserting a tool through the communication opening 151. The communication opening 151 is positioned outside the dust collection section packing 127, so that it is independent of the airtight configuration of the dust collection section 12. During normal use, the communication opening 151 needs to be closed to prevent the user from touching the control board 15. Therefore, in Embodiment 2, a label 152 is attached to cover the communication opening 151. The label 152 indicates the model number of the dust collection filter 120 to be installed in the dust collection section 12. The user can purchase a replacement dust collection filter 120 by looking at the model number on the label 152. Furthermore, since the user can easily check the model number, it is possible to prevent the incorrect installation of a dust collection filter 120 of a different model number. The surface on which the label 152 is attached is inclined so that the top is towards the rear relative to the downward direction, with respect to a line perpendicular to the rotation center line D of the rotation axis 142 of the electric blower 14 (see Figure 4). This makes the model number written on the label 152 easy for the user to see. Similarly, the surface on which the label 152 is attached is inclined so that the top is towards the rear relative to the downward direction, with respect to a line perpendicular to the parallel line F of the control board 15 (see Figure 4). This makes it easier to locate the connector (not shown) for rewriting the control software on the control board 15, improving work efficiency. For this reason, the surface on which the label 152 is attached is not perpendicular to the rotation center line D of the rotation axis 142 of the electric blower 14 and the parallel line F of the control board 15.

[0053] Furthermore, an opening 12b for the electric blower is formed in the inner wall 12a of the dust collection section 12, and the opening 12b for the electric blower is located in front of the electric blower 14. The opening 12b for the electric blower is shaped like a grid to ensure an air inflow path while preventing the user from accidentally putting their fingers into the electric blower 14.

[0054] When the electric blower 14 is driven and suction force is generated, the bag member 121 of the dust collection filter 120 expands due to the suction airflow, and dust is collected in the bag member 121. The downstream side of the bag member 121 is held by the filter frame 18. As shown in Figure 9, the filter frame 18 has a grid section 18a with a large opening in the front-to-back direction, and the protective filter 180 is supported in contact with the front surface of the grid section 18a. As a result, even when the bag member 121 expands, it contacts the grid section 18a with the protective filter 180 in between, preventing the bag member 121 and the protective filter 180 from directly blocking the inlet of the electric blower 14, and making it easier to maintain suction force. The filter frame 18 also has a top opening 18b and a side opening 18c. As a result, even if the grid section 18a with openings in the front-to-back direction is blocked by the bag member 121, it is easier to maintain suction force by drawing in air from the surrounding openings.

[0055] When the electric blower 14 is driven and suction force is generated, the dust collection lid 11 bends inward due to the negative pressure. Inside the dust collection lid 11, there is a contact portion 111 that comes into contact with the lower case 10a of the vacuum cleaner body 10 when the dust collection lid 11 bends. When the electric blower 14 is driven, the contact portion 111 comes into contact with the lower case 10a, thus preventing the dust collection lid 11 from opening.

[0056] When the bag member 121 becomes full of dust and it is time to replace the dust collection filter 120, rotate the dust collection lid 11 to open it, move the support plate 122 which is hooked onto the claw of the support plate clamp 104 away from the position of the claw, and pull the dust collection filter 120 upward (Figure 7).

[0057] The bag member 121 expands and adheres to the inner wall of the dust collection section 12, particularly to the filter frame 18 on the electric blower 14 side. However, in the configuration of Embodiment 2, as shown in Figures 10(A) and 10(B), the filter frame 18 is slidable in a substantially vertical direction. Therefore, when the dust collection filter 120 is pulled upward, the filter frame 18 also slides upward, making it easier to pull up the dust collection filter 120. Furthermore, in Embodiment 2, a raised shape 18d is provided on the upper part of the filter frame 18 (Figure 9). As a result, when the bag member 121 expands enough to adhere to the filter frame 18, the bag member 121 slides under the raised shape 18d. When the dust collection filter 120 is pulled out, the raised shape 18d is pushed upward, making it easier for the filter frame 18 to slide (Figures 10(A), (B)). The filter frame 18 is provided with a protrusion 18e, and the inner wall 12a of the dust collection unit 12 on the electric blower 14 side is provided with a recess 12c, which is a roughly rectangular groove (Figure 9). The recess 12c is roughly larger than the protrusion 18e in the vertical direction, and the filter frame 18 is mounted on the dust collection unit 12 in such a way that the protrusion 18e fits into the recess 12c. As a result, the filter frame 18 can slide roughly in the vertical direction, and when the filter frame 18 is pulled out, the protrusion 18e hits the upper end surface of the recess 12c to prevent it from coming out. Note that the position of the recess 12c does not overlap with the opening 12b for the electric blower in the horizontal direction. As a result, the roughly vertical size of the recess 12c, and therefore the sliding range of the filter frame 18, is less affected by the size of the opening 12b for the electric blower. Note that in Embodiment 1, the recess 12c is provided on the electric blower 14 side of the inner wall 12a, but it may also be provided on the side of the inner wall 12a. For example, if the size of the opening 12b for the electric blower occupies most of the inner wall 12a on the electric blower 14 side, there will be limitations on the space available to provide a recess 12c in the inner wall 12a on the electric blower 14 side. However, this problem can be avoided by providing a recess 12c in the inner wall 12a on the side.

[0058] Furthermore, since the hooking holes 126 formed in the release paper 125 are caught on the projections 104a of the support plate clamp 104, when the dust collection filter 120 is pulled upward, the release paper 125 peels off from the sealing portion 124, and the sealing portion 124 is pulled further and folded back towards the surface of the support plate 122, causing the sealing portion 124 to adhere to the surface of the support plate 122 and close the inlet 122a. This prevents dust from spilling out of the inlet 122a.

[0059] The dust collection filter 120 in Example 2 is a disposable dust collection filter that is replaced when it becomes full of dust. Therefore, it is necessary to have replacement dust collection filters on hand, but there is a risk of forgetting to buy them. To address this, a sensor may be installed in the vacuum cleaner 1 to detect when the dust collection filter 120 has been replaced, and the system may automatically order replacement dust collection filters 120 according to the number of times the dust collection filter 120 has been replaced. For example, a home server may be installed and wirelessly connected to the vacuum cleaner 1. The home server may receive information from the vacuum cleaner 1 that the dust collection filter 120 has been replaced and place an order with the retailer. [Examples]

[0060] Example 3 will be described using Figures 11 to 15. In Example 3, the configuration of the dust collection unit 12 will be described. Figure 11 is an exploded perspective view of the vacuum cleaner 1 with the connecting pipe 101 and dust collection unit 12 disassembled according to Example 3 of the present invention. Figure 12 is an exploded perspective view of the connecting pipe 101 with the button cover 102 removed according to Example 3 of the present invention. Figure 13 is a perspective view of the connecting pipe 101 with the button cover 102 attached from the state in Figure 12. Figure 14 is a front view perspective of the mouth packing 103 according to Example 3 of the present invention. Figure 15 is a rear view perspective of the mouth packing 103 according to Example 3 of the present invention. Components common to Examples 1 and 2 are denoted by the same reference numerals, and their detailed descriptions are omitted.

[0061] A mouth packing 103 is attached to the front of the dust collection unit 12 from the inside, and a connecting pipe 101 is attached to the outside (front side) of the dust collection unit 12. The end of the connecting pipe 101 is in contact with the front lip 103b of the mouth packing 103. Since the mouth packing 103 is made of a flexible material, when the front lip 103b is in contact with the connecting pipe 101, airtightness can be ensured between the suction passage 101a and the inflow passage 103a.

[0062] A dust collection packing 127 is positioned at the upper opening edge of the lower case 10a, which forms the lower side of the dust collection section 12, to maintain airtightness of the dust collection section 12 by contacting the dust collection lid 11 when the dust collection lid 11 is closed. The front of the dust collection packing 127 is positioned between the support plate clamp 104 and the dust collection lid clamp 112, and the rear of the dust collection packing 127 is positioned behind the filter frame 18. A packing fixing portion 127a is formed at the front end of the dust collection packing 127 (Figures 11 and 12).

[0063] A button cover 102 is positioned above the connecting pipe 101, covering the lock button 102a and the dust collection lid clamp 112. When the dust collection lid clamp 112 is positioned above the connecting pipe 101, the dust collection lid clamp 112 covers the packing fixing portion 127a at the front end of the dust collection packing 127. As a result, the packing fixing portion 127a is sandwiched from above and below by the lower case 10a and the button cover 102, and the front of the dust collection packing 127 is fixed to the lower case 10a (Figure 13).

[0064] In this embodiment, the dust collection lid 11 is provided with a claw portion facing forward and is secured by a dust collection lid clamp 112. However, the claw portion of the dust collection lid 11 may be provided facing backward, and the button cover 102 may be provided with a claw receiving portion to secure it, allowing the user to directly open the dust collection lid 11 by placing their hand on it. In that case, the dust collection lid clamp 112 can be omitted.

[0065] A lead wire (not shown) that supplies power to the suction port is routed between the dust collection packing 127 and the lower case 10a. Because the dust collection packing 127 is attached to the lower case 10a side, the lead wire is not visible to the user, thus ensuring a clean design.

[0066] Furthermore, the dust collection packing 127 has a shape in which the left and right sides are angled downwards and the front and rear sides are angled upwards. This ensures that the paths for the front inlet and the rear motor inlet are secured, while the angled sides widen the area of ​​the dust collection lid 11, making it easier for the user to access the dust collection unit 12 when the dust collection lid 11 is opened, and making it easier to replace the dust collection filter 120.

[0067] As shown in Figures 14 and 15, the mouth packing 103 includes a front lip 103b that contacts the end of the connecting pipe 101, a rear lip 103c that is larger in diameter than the front lip 103b and contacts the support plate 122 of the dust collection filter 120, a check valve 103d that prevents dust collected in the bag member 121 of the dust collection filter 120 from leaking out, and a check valve connector 103e that connects the check valve 103d and the rear lip 103c.

[0068] Since the mouth packing 103 is made of a flexible material, when the rear lip 103c comes into contact with the support plate 122, airtightness can be ensured between the inlet passage 103a and the inlet 122a.

[0069] The check valve 103d operates to open downstream (rearward) with the check valve connection portion 103e as a pivot point. The check valve connection portion 103e is convex toward the rear lip 103c side and concave toward the front lip 103b side relative to the check valve 103d, making it easier for the check valve connection portion 103e and the check valve 103d to operate in the direction of the rear lip 103c compared to when they are on the same plane. In addition, the inlet passage 103a of the mouth packing 103 is provided with a pair of passage projections 103f on the left and right sides that protrude toward the side without the inlet passage 103a. Furthermore, passage projections 103f are also provided at positions diagonally opposite to the check valve connection portion 103e within the inlet passage 103a. The passage projections 103f suppress the check valve 103d from opening upstream (front). This prevents dust collected in the bag member 121 of the dust collection filter 120 from leaking out. A check valve rib 103g is provided on the front lip 103b side of the check valve 103d to ensure the rigidity of the check valve 103d, thereby suppressing noise caused by vibration of the check valve 103d. Furthermore, by positioning the passage projection 103f at the same location as the check valve rib 103g, it is possible to prevent the check valve 103d from bending towards the front lip 103b side due to the weight of dust. The passage projection 103f is bent in an L shape towards the front lip 103b side, so when the mouth packing 103 is pulled in the direction of the rear lip 103c side, the mouth packing 103 catches on the passage projection 103f, making it difficult for the mouth packing 103 to come off. The end face of the passage projection 103f on the front lip 103b side is chamfered, which reduces flow path loss during suction and reduces the likelihood of suctioned dust getting caught on the passage projection 103f. The rear lip 103c comprises an outer lip 103j and an inner lip 103i. When the dust collection filter 120 is installed, each lip flexes to ensure airtightness between the mouth packing 103 and the support plate 122. By making the inner diameter of the tip of the inner lip 103i smaller than the outer diameter of the inlet 122a of the dust collection filter 120 when the dust collection filter 120 is installed, flow loss and debris entanglement at the support plate 122 can be reduced. The mouth packing 103 is equipped with a spill prevention rib 103h inside the inner lip 103i.By making the outer diameter of the spill prevention rib 103h smaller than the outer diameter of the inlet 122a of the dust collection filter 120, when the suction port 101b is facing downwards, dust accumulated in the dust collection filter 120 can be caught on the spill prevention rib 103h, reducing the backflow of dust towards the inlet passage 103a. Alternatively, the internal passage projection 103f may be provided on the lower case 10a, and a through hole may be provided in the opening packing 103. In that case, since the internal passage projection 103f can be formed from the hard material of the lower case 10a, the dust leakage suppression effect can be increased.

[0070] The connecting pipe 101 can be connected to the extension pipe 20. When connecting the extension pipe 20 to the connecting pipe 101, the extension pipe 20 is inserted into the connecting pipe 101. When the extension pipe 20 is inserted into the connecting pipe 101, the end of the extension pipe 20 comes into contact with the front lip 103b of the mouth packing 103. This ensures airtightness between the internal passage of the extension pipe 20 and the inflow passage 103a of the mouth packing 103.

[0071] In this embodiment, a flexible mouth packing 103 is provided between the connecting pipe 101 and the dust collection section 12, thereby ensuring airtightness between the suction passage 101a of the connecting pipe 101 and the inflow passage 103a of the mouth packing 103, between the internal passage of the extension pipe 20 and the inflow passage 103a of the mouth packing 103, and between the inflow passage 103a of the mouth packing 103 and the inlet 122a of the support plate 122 (dust collection filter 120). [Examples]

[0072] Embodiment 4 will be described using Figures 16 and 17. Figure 16 is a bottom view of the vacuum cleaner 1 according to Embodiment 4 of the present invention, viewed from below. Figure 17 is a left side view of the vacuum cleaner 1 according to Embodiment 4 of the present invention, viewed from the left. Components common to Embodiments 1 to 3 are denoted by the same reference numerals, and their detailed descriptions are omitted.

[0073] The vacuum cleaner 1 described in Examples 1 to 3 drives the electric blower 14 with power supplied from the battery pack 16. Therefore, when the charging capacity of the battery pack 16 decreases, it is necessary to charge it. As shown in Figure 16, the bottom of the vacuum cleaner 1 is provided with a DC jack 19 for charging the battery pack 16.

[0074] The charging terminal 60 is connected to the DC jack 19 when charging the battery pack 16. When the charging terminal 60 is inserted into the DC jack 19, the charging terminal 60 protrudes from the bottom (outer circumference) of the vacuum cleaner body 10. If the vacuum cleaner 1 is placed on the floor surface Y with the charging terminal 60 connected to the DC jack 19, the charging terminal 60 may come into contact with the floor surface Y, potentially damaging the charging terminal 60 or scratching the floor surface Y.

[0075] Therefore, in the vacuum cleaner 1 of this embodiment, a lower body projection 10c is provided at the bottom of the lower case 10a of the vacuum cleaner body 10, which protrudes downward.

[0076] When the lowest rear end of the vacuum cleaner 1 (battery pack 16) and the lower projection 10c of the main body are drawn in a straight line, a space is formed between the lowest rear end of the vacuum cleaner 1 (battery pack 16) and the lower projection 10c of the main body. In other words, when the vacuum cleaner 1 is placed on the floor surface Y, a space is formed between the lowest rear end of the vacuum cleaner 1 (battery pack 16) and the lower projection 10c of the main body, away from the floor surface Y. When the DC jack 19 is placed in this space, the charging terminal 60 will not come into contact with the floor surface Y even when the charging terminal 60 is connected to the DC jack 19.

[0077] According to Example 4, even when the charging terminal 60 is connected to the DC jack 19 and the battery pack 16 is being charged, the charging terminal 60 does not come into contact with the floor surface Y, thus preventing damage to the charging terminal 60 and scratches on the floor surface Y. [Examples]

[0078] Figure 18 is an exploded perspective view of the vacuum cleaner 1, showing the connecting pipe 101, lower case 10a, and upper case 10b disassembled according to Embodiment 5 of the present invention. Figure 19 is a perspective view of the dust collection packing 127 removed from the pack chamber 10e according to Embodiment 5 of the present invention. Components common to Embodiments 1 to 4 are denoted by the same reference numerals, and their detailed descriptions are omitted.

[0079] The vacuum cleaner body 10 includes a dust collection unit 12 for collecting inhaled dust, a dust collection lid 11 that forms the upper part of the dust collection unit 12 and covers it in an openable and closable manner, and a pack chamber 10e that forms the lower part of the dust collection unit 12. The dust collection lid 11 opens and closes around a pivot axis 105 and is held closed by a dust collection lid clamp 112 (locking mechanism). The pack chamber 10e is equipped with a dust collection packing 127 (airtightness-maintaining member), and when the dust collection lid 11 is closed, the dust collection lid 11 comes into contact with the dust collection packing 127 to maintain airtightness inside the dust collection unit 12. The pack chamber 10e is constructed in such a way that it is easy to maintain airtightness by minimizing elements that could cause air leakage. In this embodiment, the dust collection packing 127 is made of a flexible material, but it is not limited to a flexible material as long as it can maintain airtightness inside the dust collection unit 12 by contact with the dust collection lid 11.

[0080] If the contact between the dust collection lid 11 and the dust collection packing 127 is misaligned, it becomes impossible to maintain airtightness within the dust collection section 12. However, if the dust collection lid 11 and the dust collection lid clamp 112 are provided as separate parts from the pack chamber 10e, the accumulation of tolerances will increase, and there is a risk that airtightness cannot be maintained. Therefore, in the vacuum cleaner 1 of this embodiment, the fixing part of the dust collection lid 11 and the fixing part of the dust collection lid clamp 112 are provided in the pack chamber 10e, and the mounting structure of the parts necessary to ensure airtightness in the dust collection section 12 is concentrated in the pack chamber 10e. This minimizes the accumulation of tolerances in the airtight space and makes it easier to maintain airtightness.

[0081] The packing chamber 10e is equipped with vibration-damping rubber 144 (vibration-absorbing member) at the rear. The vibration-damping rubber 144 fixes at least a portion of the electric blower 14, ensuring airtightness from the dust collection unit 12 to the electric blower 14 and absorbing vibrations of the electric blower 14.

[0082] The vacuum cleaner 1 described in Examples 1 to 4 uses power supplied from the battery pack 16 to drive a suction motor (not shown) located on the suction nozzle 30, which in turn rotates a rotating brush (not shown) located on the suction nozzle. Therefore, power needs to be supplied from the control board 15 housed in the motor chamber 10f (electric blower housing) through the connecting pipe 101 and extension pipe 20. The conductive parts need to be concealed from the standpoint of safety and aesthetics. In the pack chamber 10e, a conductive part 108 is positioned between the side wall 107a, which is in contact with the dust collection packing 127, and the outer shell of the pack chamber 10e. In the inner wall 12a of the dust collection section 12, which is separated from the electric blower 14, a wiring opening 153 is formed that communicates with the space where the control board 15 is housed. By routing the wiring through the conductive part 108 from the wiring opening 153, the wiring and the wiring opening 153 can be concealed by the dust collection packing 127, thereby ensuring safety and aesthetics. By positioning the wiring opening 153 outside the dust collection packing 127, it can be configured independently of the airtight structure of the dust collection unit 12, thereby ensuring airtightness. Furthermore, it is desirable for the vacuum cleaner 1 to be small. By not providing separate parts to conceal the wiring, and instead concealing it with the dust collection packing 127 and the outer shell of the dust collection unit 12, which are essential to the dust collection unit 12, the number of parts is reduced, resulting in a smaller and lighter design.

[0083] The dust collection packing 127 is sandwiched and fixed between the side wall 107a and the packing fixing rib 107b. Generally, ribs need to be made flat to prevent molding defects such as sink marks, but if the side wall 107a and packing fixing rib 107b are provided on the dust collection lid 11, the aesthetic design of the vacuum cleaner 1 may be greatly impaired. Therefore, in the vacuum cleaner 1 of this embodiment, a pack chamber plane 109 is provided in the pack chamber 10e, and the side wall 107a and packing fixing rib 107b are provided on the pack chamber plane 109, thereby creating a structure that does not impair the aesthetic design. [Examples]

[0084] Example 6 will be described using Figures 20 to 23. Example 6 describes an alternative method for attaching the dust collection filter in the dust collection section. Figure 20 is a perspective view of the vacuum cleaner 1 (dust collection filter type vacuum cleaner) according to Example 6 of the present invention.

[0085] (a) shows the vacuum cleaner body, and (b) shows it stored in the stand 50. Figure 21 is a perspective view of the dust collection filter case 500 according to Embodiment 6 of the present invention. (a) shows the dust collection filter case in the state where it is housed in the dust collection section 12, and (b) shows the state where each component is slid and rotated in order to pull the dust collection filter case out of the dust collection chamber. Figure 22 is a cross-sectional view of AA in Figure 20. (a) shows the state before the dust collection filter mounting part of the dust collection filter case is housed in the dust collection chamber, and (b) shows the state where the dust collection filter mounting part is housed in the dust collection chamber. Figure 23 is a diagram showing a series of operations when removing the dust collection filter according to Embodiment 6 of the present invention. (a) shows the dust collection cover 11 in the closed position, which is the state when cleaning is performed normally; (b) shows the dust collection cover 11 in the open position; (c) shows the dust collection filter case pulled out; (d) shows the dust collection filter mounting part rotated so that the opening of the dust collection filter faces from downward to forward; and (e) shows the dust collection filter removed from the dust collection filter case.

[0086] In this embodiment, the dust collection unit 12 further comprises a dust collection filter case 500, which is responsible for fixing and positioning the dust collection filter 120 as shown in Figure 21.

[0087] The dust collection filter case 500 includes a first guide section 501 provided on the lower case 10a, a second guide section 502 provided on the first guide section 501, and a dust collection filter mounting section 503 provided on the second guide section 502. The first guide section 501, the second guide section 502, and the dust collection filter mounting section 503 are each provided so as to be slidable in the vertical direction. In addition, the dust collection filter mounting section 503 is rotatably mounted with respect to the rotation axis H of the second guide section 502. With this configuration, when replacing the dust collection filter 120, the dust collection filter mounting section 503 can be pulled out of the dust collection section 12, and then the orientation of the opening 503a of the dust collection filter mounting section 503 can be changed. This makes it possible to position the inlet 122a of the dust collection filter 120 in the dust collection unit 12 upwards from the horizontal when removing the dust collection filter 120 from the dust collection filter mounting unit 503, even when the inlet 122a of the dust collection filter 120 is facing downwards from the horizontal, such as when cleaning the floor or storing it in the stand 50, thereby preventing dust from spilling out.

[0088] Here, the direction in which the dust collection filter case is pulled out of the dust collection chamber is not limited to the upward direction as in this embodiment, nor is the sliding direction of each component constituting the dust collection filter case limited to the vertical direction. For example, the dust collection filter case may be structured to be pulled out in the left-right direction.

[0089] Furthermore, regarding the operation of pulling out the dust collection filter case, in this embodiment, the process involves two steps: first, pulling it out of the dust collection chamber by linear sliding, and then rotating the dust collection filter mounting part to change the orientation of the dust collection filter. However, the sliding trajectory is not limited to a linear one, and the process is not limited to two steps.

[0090] For example, the dust collection filter may slide in a roughly circular or roughly elliptical orbit, and the orientation of the dust collection filter may change simultaneously with the sliding motion.

[0091] The dust collection filter mounting section 503 is provided with an opening 504 so as not to block the inlet 122a of the dust collection filter 120. In addition, a dust spill prevention cover 506 is attached to the dust collection filter mounting section 503 with a compression spring 505 in between, and unless an external force is applied, the dust spill prevention cover 506 closes the opening 504 of the dust collection filter mounting section 503 due to the elastic force of the compression spring 505.

[0092] Here, the means by which the dust spill prevention lid 506 closes the opening 504 of the dust collection filter mounting portion 503 is not limited to the means using a compression spring 505 as in this embodiment. For example, other types of springs such as tension springs or torsion springs may be used, or a mechanism that does not handle elastic force, such as a link mechanism, may also be used.

[0093] The dust spill prevention lid 506 is provided with receiving ribs 507. As a result, when the dust collection filter case 500 is stored in the dust collection chamber, it comes into contact with a push-away projection 508 provided on the vacuum cleaner body, and only the dust spill prevention lid 506 is pushed in a direction that opens the opening 504 of the dust collection filter mounting section 503.

[0094] With the above configuration, the opening 504 is open when the dust collection filter mounting section 503 is inside the dust collection chamber, and the opening 504 is closed by the dust spill prevention cover 506 in all other states. This prevents dust from spilling out.

[0095] It should be noted that the present invention is not limited to the embodiments described above, and various modifications are included. For example, the embodiments described above are described in detail for the purpose of explaining the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described. Furthermore, it is possible to replace parts of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add configurations from other embodiments to the configuration of one embodiment. In addition, it is possible to add, delete, or replace parts of the configuration of each embodiment with other configurations. [Explanation of Symbols]

[0096] 1...Electric vacuum cleaner, 10...Vacuum cleaner body, 10a...Lower case, 10b...Upper case, 10c...Protrusion on the bottom of the main body, 10d...Rib, 10e...Pack chamber, 10f...Motor chamber, 101...Connecting pipe, 101a...Suction passage, 101b...Suction port, 102...Button cover, 102a...Lock button, 103...Mouth packing, 103a...Inflow passage, 103b...Front lip, 103c...Rear lip, 103d...Check valve, 103e...Check valve connection part 103f...Internal passage projection, 103g...Check valve rib, 103h...Spill prevention rib, 103i...Inner lip, 103j...Outer lip, 104...Support plate clamp, 104a...Projection, 105...Rotating shaft, 106...Fixed part, 107a...Side wall, 107b...Packing fixing rib, 108...Conductive part, 109...Pack chamber surface, 11...Dust collection lid, 11a...Dust collection lid claw, 110...Coil spring, 110a...Lower tip, 110b...Upper tip, 1 11...Contact part, 112...Dust collection lid clamp, 12...Dust collection part, 12a...Inner wall, 12b...Opening for electric blower, 12c...Recess, 120...Dust collection filter, 121...Bag member, 122...Support plate, 122a...Inlet, 123...Sealing member, 124...Sealing part, 125...Release paper, 126...Hooking hole, 127...Dust collection part packing, 127a...Packing fixing part, 13...Handle part, 14...Electric blower, 141...Fan, 142...Rotation 143…Shaft, 144…Motor, 15…Anti-vibration rubber, 15…Control board, 151…Communication opening, 152…Label, 153…Wiring opening, 16…Battery pack, 17…Operation switch, 18…Filter frame, 18a…Grid section, 18b…Top opening, 18c…Side opening, 18d…Raised shape, 18e…Convex part, 180…Protective filter, 19…DC jack, 20…Extension tube, 30…Suction nozzle, 40…Brush section, 50…Stand, 60…Charging terminal

Claims

1. An electric vacuum cleaner comprising a vacuum cleaner body, an electric blower housing for housing an electric blower, a dust collection unit with a removable dust collection filter comprising a support plate with an opening and a bag member, an intake port for sucking in air containing dust, and a handle for the user to grip, The upper surface of the vacuum cleaner body has a straight section formed linearly from the suction port to the dust collection section. The vacuum cleaner is characterized in that the upper surface of the handle portion is located substantially on the straight line of the straight portion and / or below the straight portion.

2. The vacuum cleaner according to claim 1, The vacuum cleaner body has a suction passage having the suction port, and an inlet passage connecting the suction passage and the dust collection section. The dust collection unit has a fixing part that detachably holds the dust collection filter, The aforementioned fixing part is characterized in that, when the dust collection filter is fixed to the fixing part, the central axis of the opening of the support plate is inclined vertically with respect to the central axis of the suction port when viewed from the left and right sides of the vacuum cleaner body in a side view.

3. The vacuum cleaner according to claim 1, The vacuum cleaner body has a suction passage having the suction port, The dust collection unit has a fixing part that detachably holds the dust collection filter, The vacuum cleaner is characterized in that, when the dust collection filter is fixed to the fixing part, the center of the opening of the support plate is positioned below the central axis of the suction passage.

4. The vacuum cleaner according to claim 1, The vacuum cleaner is characterized in that the handle portion comprises a first handle portion formed substantially in a straight line with the straight portion, and a second handle portion extending rearward and downward from the first handle portion.

5. The vacuum cleaner according to claim 1, The vacuum cleaner is characterized in that the lower surface of the vacuum cleaner body has an inclined portion that slopes from front to back and from top to bottom.

6. The vacuum cleaner according to claim 1, The vacuum cleaner body further includes a passage connecting the suction port to the electric blower housing, The aforementioned passage is characterized by being bent twice in the vertical direction.

7. The vacuum cleaner according to claim 6, The vacuum cleaner is characterized in that the passage has a first inclined portion in which the cross section perpendicular to the axis of the passage is inclined in the front-rear direction with respect to the cross section perpendicular to the central axis of the suction port.

8. The vacuum cleaner according to claim 7, The vacuum cleaner is characterized in that the passage has a second inclined section in which the cross section perpendicular to the axis of the passage is inclined in the front-rear direction with respect to the cross section perpendicular to the axis of the first inclined section.

9. An electric vacuum cleaner comprising a vacuum cleaner body, an electric blower housing for housing an electric blower, a dust collection unit with a removable dust collection filter comprising a support plate with an opening and a bag member, an intake port for sucking in air containing dust, and a handle for the user to grip, The vacuum cleaner is characterized in that the upper surface of the vacuum cleaner body has a straight section formed substantially in a straight line from the suction port to at least a part of the handle.

10. An electric vacuum cleaner comprising a vacuum cleaner body, an electric blower housing for housing an electric blower, a dust collection unit with a removable dust collection filter comprising a support plate with an opening and a bag member, an intake port for sucking in air containing dust, and a handle for the user to grip, The upper surface of the vacuum cleaner body has a straight section that is formed substantially in a straight line from the suction port to the dust collection section. The vacuum cleaner is characterized in that at least a portion of the upper surface of the handle portion is located on a substantially straight line with the straight portion.

Images