JP7622022B2 - Vacuum cleaner - Google Patents

Description

The present invention relates to a vacuum cleaner.

Stick vacuum cleaners are electric vacuum cleaners that are used by the user to hold a handle attached to the main body of the vacuum cleaner. Stick vacuum cleaners are equipped with an electric blower and dust collection unit inside the main body of the vacuum cleaner, and dust is sucked in from the suction body via an extension tube connected to the main body of the vacuum cleaner and collected in the dust collection unit.

In addition, a typical stick vacuum cleaner can be used as a handheld vacuum cleaner by removing the extension tube connected to the main body and sucking in dust through the suction port of the main body.

In stick-type vacuum cleaners, the electric blower, dust collection unit, and suction port are generally in a straight line, so in order to ensure dust collection capacity, the top surface of the vacuum cleaner body is often designed to gradually bulge upwards from the suction port to the rear of the vacuum cleaner body. Also, a handle is formed behind the dust collection unit. Such a vacuum cleaner is disclosed, for example, in Patent Document 1.

JP 2020-72837 A

When using the vacuum cleaner disclosed in Patent Document 1 as a handheld vacuum cleaner, the user grasps the handle at the rear of the vacuum cleaner body and moves the vacuum cleaner body back and forth to suck in dust through the suction port of the vacuum cleaner body.

However, in the vacuum cleaner disclosed in Patent Document 1, in order to ensure dust collection capacity, the top surface of the vacuum cleaner body is formed to gradually bulge upwards from the suction port of the vacuum cleaner body toward the rear of the vacuum cleaner body, which means that when used as a handheld vacuum cleaner, the suction port is not visible, making it difficult to clean dust from the floor. In addition, the vacuum cleaner disclosed in Patent Document 1 has a poor design because the suction port is formed in the center of the body.

The object of the present invention is to provide a vacuum cleaner that has improved operability and design when used as a handheld vacuum cleaner.

In order to achieve the above-mentioned object, the present invention provides an electric vacuum cleaner having a vacuum cleaner body, an electric blower, a dust collecting unit, and a connecting pipe provided in front of the vacuum cleaner body, the vacuum cleaner being provided with an inflow passage connecting the dust collecting unit and the connecting pipe, the dust collecting unit having a fixing part for removably holding a dust collecting filter comprising a support plate having an opening and a bag member and being positioned below the connecting pipe, the inflow passage connecting to the dust collecting unit from the connecting pipe toward the opening, the central axis of the connecting pipe intersects with the central axis of the opening of the support plate, and the central axis of the inflow passage intersects with the central axis of the support plate so that the rear side is located below the central axis of the support plate .

The present invention provides a vacuum cleaner that has improved operability and design when used as a handheld vacuum cleaner.

1 is a perspective view of the appearance of a vacuum cleaner according to a first embodiment of the present invention, showing a state in which the vacuum cleaner is stored in a stand. 1 is a perspective view of the appearance of a vacuum cleaner according to a first embodiment of the present invention, showing a state in which the vacuum cleaner is used as a stick type vacuum cleaner. 1 is a perspective view of the appearance of a vacuum cleaner according to a first embodiment of the present invention, showing a state in which the vacuum cleaner is used as a handheld type. 1 is a cross-sectional view of a vacuum cleaner body 10 of the electric vacuum cleaner 1 cut along the front-rear direction. FIG. 10 is a perspective view of the exterior of a dust collecting filter 120 according to a second embodiment of the present invention in a folded state. FIG. 11 is a perspective view of the exterior of the dust collecting filter 120 according to the second embodiment of the present invention when it is to be disposed of. 13 is a diagram showing a state in which a dust collection filter 120 is being removed from a dust collection unit 12 of a vacuum cleaner 1 according to a second embodiment of the present invention. FIG. 8 is an enlarged view of the main part of FIG. 7, showing the opening operation function of the dust collection lid 11. FIG. FIG. 11 is an exploded perspective view of a state in which a filter frame 18 and a protective filter 180 are removed from a vacuum cleaner 1 according to a second embodiment of the present invention. 11A and 11B are side views showing the operation of the filter frame 18 when pulling out the dust collecting filter 120 with the bag member 121 inflated, in which (A) shows the state before the dust collecting filter 120 is pulled out, and (B) shows the state after the dust collecting filter 120 has been pulled out. FIG. 11 is an exploded perspective view of the vacuum cleaner 1 with a connection pipe 101 and a dust collecting unit 12 disassembled according to a third embodiment of the present invention. FIG. 11 is an exploded perspective view of a state in which a button cover 102 is removed from a connecting pipe 101 according to a third embodiment of the present invention. 13 is a perspective view of a state in which a button cover 102 is attached to a connecting pipe 101 from the state shown in FIG. 12. FIG. 11 is a front perspective view of a mouth packing 103 according to a third embodiment of the present invention. FIG. 11 is a rear perspective view of a mouth packing 103 according to a third embodiment of the present invention. FIG. 11 is a bottom view of the electric vacuum cleaner 1 according to the fourth embodiment of the present invention, as viewed from below. FIG. 11 is a left side view of the electric vacuum cleaner 1 according to a fourth embodiment of the present invention, as viewed from the left side. FIG. 10 is an exploded perspective view of a connecting pipe 101, a lower case 10a, and an upper case 10b according to a fifth embodiment of the present invention. FIG. 11 is a perspective view of a pack chamber 10e according to a fifth embodiment of the present invention with a dust collection section gasket 127 removed. 13 is a perspective view of the exterior of a vacuum cleaner and a perspective view of a vacuum cleaner body, showing a state in which the vacuum cleaner is stored in a stand according to a sixth embodiment of the present invention. FIG. FIG. 13 is a perspective view of a dust-collecting filter case according to a sixth embodiment of the present invention. 21 is a cross-sectional view of the vacuum cleaner body of the present invention shown in FIG. 20 along line A-A. 13A to 13C are diagrams showing a series of operations when removing the dust collecting filter according to the sixth embodiment of the present invention.

Below, an embodiment of the present invention will be described with reference to the drawings. In principle, the same reference numerals are used in all drawings to refer to the same elements. Also, explanations of parts having the same functions will be omitted. Note that the configurations described below are merely examples, and it is not intended that the embodiments of the present invention be limited to the specific embodiments described below.

Figure 1 is an external perspective view of the electric vacuum cleaner stored in a stand according to the first embodiment of the present invention. Figure 2 is an external perspective view of the electric vacuum cleaner used as a stick type according to the first embodiment of the present invention. Figure 3 is an external perspective view of the electric vacuum cleaner used as a handheld type according to the first embodiment of the present invention. Figure 4 is a cross-sectional view of the vacuum cleaner body 10 of the electric vacuum cleaner 1 cut along the front-rear direction. In the first embodiment, front-rear, left-right, and up-down are defined from the viewpoint of the user performing cleaning, as indicated by the arrows.

As shown in Figures 1 and 2, the vacuum cleaner 1 comprises a vacuum cleaner body 10 forming an outer shell, an extension tube 20 having one end connected to the vacuum cleaner body 10 via a connecting tube 101, and a suction body 30 connected to the other end of the extension tube 20. The vacuum cleaner 1 of Example 1 is also provided with a brush part 40 on the outer periphery of the connecting tube 101. The connecting tube 101 is fixed to the front of the vacuum cleaner body 10, and a suction passage 101a through which air flows is formed inside the connecting tube 101, and is connected to the internal passage of the extension tube 20.

The extension tube 20 is connected to the vacuum cleaner body 10 via a connection tube 101. When not in use, the vacuum cleaner 1 is placed on the stand 50. The upper part of the connection tube 101 is provided with a lock button 102a that prevents 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.

The vacuum cleaner body 10 is formed of a lower case 10a and an upper case 10b arranged above the lower case 10a, and the lower case 10a is composed of a pack chamber 10e that houses a dust collection filter 120 and a motor chamber 10f (electric blower housing) that houses an electric blower 14. The vacuum cleaner body 10 also includes a dust collection section 12 that collects the dust that has been sucked in, a dust collection lid 11 that can be opened and closed to cover the upper part of the dust collection section 12, and a handle section 13 that the user holds when cleaning. The handle section 13 is formed from a part of the upper case 10b, and the upper case 10b has an exhaust port. The dust collection lid 11 opens and closes around a rotating shaft 105, and is biased in the direction of opening the dust collection lid 11 by a coil spring 110 (FIG. 8) described later. The dust collection lid 11 also holds the dust collection section 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 section gasket 127 (Figure 8). When the dust collection lid 11 is closed, the dust collection lid 11 comes into contact with the dust collection section gasket 127, keeping the inside of the dust collection section 12 airtight.

The dust collection lid 11 is made of a translucent material, allowing the bulge of the dust collection filter 120 to be seen, further improving the design.

A rib 10d is formed on the lower case 10a near the rear of the dust collection lid claw 11a that hooks onto the dust collection lid clamp 112. As a result, when the user holds the handle 13 and lifts the vacuum cleaner 1 in use as a stick type, the rib 10d presses down on the dust collection lid claw 11a, preventing the entire vacuum cleaner body 10 from bending and causing the dust collection lid claw 11a to come off the dust collection lid clamp 112.

Inside the vacuum cleaner body 10 are an electric blower 14 (Fig. 4) that generates suction force, a control board 15 (Fig. 4) that mounts a control device that controls the electric blower 14, and a battery pack 16 that is located behind the electric blower 14 and has multiple storage batteries that supply power to the electric blower 14.

An operating switch 17 is located on the handle 13 to turn the electric blower 14 on and off and adjust the suction power.

As shown in FIG. 4, the dust collection section 12 is provided with a disposable dust collection filter 120 that collects and filters the dust sucked in from the suction passage 101a in a removable manner. The dust collection filter 120 is made up of a breathable and flexible bag member 121 that 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 section 12, and the upper part is fixed to the dust collection section 12 by the support plate clamp 104.

The dust collection filter 120 is attached to the dust collection section 12 by fixing the support plate 122 with the support plate clamp 104.

With the central axis of the suction passage 101a (central axis A of the suction port 101b) horizontal, the support plate 122 is inclined so that the upper part is located further rearward than the lower part and is attached to the dust collection unit 12. 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 inclined by approximately 20° (different angles). In addition, a port gasket 103 is provided between the connection pipe 101 and the dust collection unit 12. The port gasket 103 is formed by an inflow passage 103a (central axis C) that communicates with the suction passage 101a of the connection pipe 101 and a rear lip 103c (central axis E) that abuts against the support plate 122. In addition, the port gasket 103 is formed 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 generated on the side of the check valve 103d, and the thin plate portion can act as a thread rib to reduce the gap between the check valve 103d and the inlet passage 103a. By reducing the gap between the check valve 103d and the inlet passage 103a, dust accumulated in the dust collection filter 120 can be prevented 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 abutting against the support plate 122.

Dust sucked in from the suction port 101b of the suction passage 101a passes through the suction passage 101a and the inlet passage 103a of the mouth packing 103 together with air, and is collected in the bag member 121 of the dust collection filter 120 from the inlet port 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 passes through the bag member 121 passes through the protective filter 180 and the electric blower opening 12b and is sucked into the electric blower 14. The protective filter 180 is disposed between the dust collection filter 120 and the electric blower opening 12b to prevent dust leaking from the bag member 121 from being sucked into the electric blower 14. The protective filter 180 is supported by a filter frame 18 that can slide in the approximately vertical direction, and is attached to the dust collection section 12.

The electric blower 14 includes 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 drives the fan 141 to rotate. The rotation center line D of the rotating shaft 142 of the electric blower 14 is inclined downward toward the downstream side (rear side).

A battery pack 16 that supplies power to the electric blower 14 is provided downstream (rear) of the electric blower 14.

When used as a stick-type vacuum cleaner, the suction body 30 is connected to the connection tube 101 of the vacuum cleaner body 10 via the extension tube 20 as shown in FIG. 2. The user grasps the handle 13 and operates the operation switch 17 to drive the electric blower 14 and move the suction body 30 back and forth. The suction force of the electric blower 14 generates suction force in the suction body 30. Dust sucked in through the suction body 30 passes through the extension tube 20 and is collected in the dust collection filter 120 of the dust collection section 12.

When using the vacuum cleaner as a handheld type, the extension tube 20 is removed from the connection tube 101 of the vacuum cleaner body 10 as shown in FIG. 3. By removing the extension tube 20 from the connection tube 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 connection tube 101. Dust is then sucked directly from the suction port 101b, and the sucked dust is collected in the dust collection filter 120 of the dust collection section 12.

In a typical vacuum cleaner, the support plate 122 is perpendicular to the central axis A of the suction port 101b, and so in this state the bag member 121 can be fully inflated to ensure sufficient dust collection capacity, and the top surface of the vacuum cleaner body is formed to gradually inflate upwards from the suction port to 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. The configuration for solving this problem will be explained using Figure 4.

In FIG. 4, the central axis of the suction port 101b is A, and the central position of the inlet of the dust collection filter 120 (the central position of the inlet 122a of the support plate 122) is B. In the first embodiment, 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). In other words, the central axis A of the suction port 101b is positioned closer to the handle portion 13 than 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).

Between the downstream side (rear side) of the suction passage 101a and the inlet 122a of the dust collection filter 120, a gasket 103 is formed that slopes downward toward the downstream side (rear side), so that 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.

According to the first embodiment, 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), so that when used as a handheld vacuum cleaner, the suction port 101b is easily visible from the user's line of sight, improving operability during cleaning.

In addition, according to Example 1, the upper surface of the suction port 101b is formed linearly toward the handle portion 13 (rearward) without any irregularities, improving the design.

Furthermore, according to the first embodiment, the central axis A of the suction port 101b and the central position B of the inlet of the dust collection filter 120 are misaligned, so that 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.

Furthermore, in the first embodiment, when the central axis of the dust collection filter 120 is 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 to each other. By configuring in this way, when the dust collection filter 120 is removed from the dust collection section 12, it is possible to prevent the dust collected in the dust collection filter 120 from spilling out from the inlet 122a and the spilled dust from being discharged to the outside from the suction port 101b.

In Example 1, the user grips the handle portion 13 to operate the vacuum cleaner 1, so a moment is applied to the user's hand. For this reason, it is preferable to reduce the moment applied to the hand of the user when gripping the handle portion 13 to operate the vacuum cleaner 1. Therefore, in Example 1, the handle portion 13 is configured to straddle the extension line of the central axis A of the suction port 101b. In other words, the handle portion 13 in Example 1 is configured to intersect with the extension line of the central axis A of the suction port 101b. By configuring Example 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.

In the electric vacuum cleaner 1, it is preferable to reduce the airflow loss in order to improve the dust collection efficiency. Therefore, in the first embodiment, when the rotation center line of the rotating shaft 142 of the electric blower 14 is D, the rotation center line D of the rotating shaft 142 of the electric blower 14 and the central axis E of the dust collection filter 120 are configured to be parallel. By configuring in this way, the airflow loss from the dust collection filter 120 to the electric blower 14 can be reduced, and the dust collection efficiency can be improved. To further improve the efficiency, the rotation center line D of the electric blower and the central axis E of the dust collection filter 120 may be in a straight line. In particular, in an electric vacuum cleaner equipped with a storage battery, the operating time of the electric blower 14 can be reduced by improving the dust collection efficiency, and the weight of the vacuum cleaner can be reduced by making the storage battery smaller.

In addition, in the electric vacuum cleaner 1, it is desirable to enlarge the dust collection section 12 in order to ensure the amount of dust collection. However, in order to prevent a decrease in operability, it is preferable not to make the vacuum cleaner body 10 larger than necessary. Therefore, in the first embodiment, the central axis C of the inlet passage 103a of the mouth packing is configured to be tilted further rearward than the central axis E of the support plate 122 of the dust collection filter 120 (approximately 25° with respect to the central axis A). In other words, the central axis C of the inlet 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 inlet passage 103a in the front-rear direction can be reduced while ensuring the area of the support plate 122, so the dust collection section 12 can be enlarged while reducing the length of the vacuum cleaner body 10.

In addition, it is desirable that the electric vacuum cleaner 1 is small. In order to secure the battery capacity, the battery pack 16 stored in the vacuum cleaner main body 10 has a larger volume than the electric blower 14, which is a cause of the vacuum cleaner main body 10 becoming larger. Therefore, in the first embodiment, when the central axis of the battery pack 16 is G, the central axis G of the battery pack 16 is positioned above the rotation center line D of the rotation shaft 142 of the electric blower 14. By configuring in this way, it is possible to suppress the expansion of the part of the vacuum cleaner main body 10 that stores the battery pack 16, and it is possible to suppress the increase in size of the vacuum cleaner main body 10. Furthermore, in the first embodiment, when the parallel line of the control board 15 is F, the parallel line F of the control board 15 is not parallel to the rotation center line D of the rotation shaft 142 of the electric blower 14. As described above, the battery pack 16 has a larger volume than the electric blower 14, so in the first embodiment, the control board 15 is arranged taking into account the volumes of the electric blower 14 and the battery pack 16. This helps prevent the vacuum cleaner 1 from becoming too large.

It is also desirable for the vacuum cleaner 1 to be lightweight. The weight can be reduced by providing irregularities on the inside of the lower case 10a and upper case 10b that form the outer shell so that the thickness of the outer shell varies (using topology lightweight technology). It is desirable for the irregularities to be thick in areas where strength is required and thin in areas where it is not, and the shape may be determined by simulation.

In Figure 4, point P1 indicates the center of gravity in the handheld state, and point P2 indicates the center of gravity in the stick state.

Next, a second embodiment will be described with reference to Figs. 5 and 6. In the second embodiment, the configuration of the dust collection filter 120 and the dust collection section 12 will be described. Fig. 5 is an external perspective view of the dust collection filter 120 according to the second embodiment of the present invention in a folded state. Fig. 6 is an external perspective view of the dust collection filter 120 according to the second embodiment of the present invention when it is to be disposed of. Configurations common to the first embodiment are given the same reference numerals, and detailed descriptions thereof will be omitted.

The dust collection filter 120 includes a quadrilateral support plate 122 made of cardboard, plastic, or the like having an inlet 122a, a breathable bag member 121 made of paper, cloth, nonwoven fabric such as animal hair or plastic material, and a seal member 123 attached to the support plate 122. The bag member 121 is adhered to the back side of the support plate 122. In the second embodiment, the seal member 123 is attached to one of the quadrilateral support plate 122. In the second embodiment, the seal member 123 is attached to the support plate 122, but it may be attached by adhering to a part of the bag member 121.

The adhesive portion between the bag member 121 and the support plate 122 does not extend over the entire support plate 122, and the outer periphery of the support plate 122 is not adhesively attached to the bag member 121. The bag member 121 is adhesively attached around the opening of the support plate 122. When the support plate 122 is attached to the dust collection unit 12 of the vacuum cleaner 1, it is hooked and fixed to the claws of the support plate clamp 104. However, if the bag member 121 is adhesively attached up to the outer periphery of the support plate 122, the claws of the support plate clamp 104 cannot be hooked to 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 the second embodiment, the outer periphery of the support plate 122 is not adhesively attached to the bag member 121. The portion where the support plate 122 and the bag member 121 are not bonded must be at least one side of the support plate 122, i.e., the side that is hooked onto the claw portion of the support plate clamp 104, but the other sides may be bonded up to the end of the support plate 122.

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. In the second embodiment, it is attached to the upper side of the back side of the support plate 122. When bonding the sealing member 123 to the upper side of the back side of the support plate 122, it is preferable not to bond the vicinity of the end of the support plate 122. The reason for this is that the upper side of the support plate 122 is caught and fixed by 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 to the portion that is caught by the claw portion of the support plate clamp 104.

The sealing member 123 comprises a sealing portion 124 having a glue that is an adhesive surface, and a release paper 125 (release portion) that covers the adhesive surface. The sealing portion 124 and the release paper 125 are arranged with the glue as a boundary, 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 hook hole 126 formed therein for hooking onto the protrusion 104a provided on the support plate clamp 104 of the vacuum cleaner 1.

When the release paper 125 of the sealing member 123 is peeled off from below (the hook hole 126 side), the adhesive surface of the sealing portion 124 is exposed. Then, the sealing portion 124 is folded back over the top of the support plate 122, and the exposed adhesive surface faces the front surface of the support plate 122, and the adhesive surface of the sealing portion 124 is attached to the support plate 122. The inlet 122a of the support plate 122 is covered and blocked by the sealing portion 124, so that dust can be prevented from spilling out of the inlet 122a even when the dust collection filter 120 is disposed of, and the dust collection filter 120 can be handled hygienically.

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 unit 12 of the vacuum cleaner 1. The removal operation of the dust collection filter 120 will be described with reference to FIG. 7.

Figure 7 is a diagram showing the state in which the dust collection filter 120 is removed from the dust collection unit 12 of the vacuum cleaner 1 according to the second embodiment 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.

When attaching the dust collection filter 120 to the dust collection section 12 of the vacuum cleaner 1, the dust collection lid 11 is opened, and the support plate 122 of the folded dust collection filter 120 (Fig. 5) is inserted into the guide section so that it faces the outlet section of the mouth packing 103, and the upper part of the support plate 122 is hooked onto the claw section of the support plate clamp 104 and fixed in place. Also, the hook hole 126 formed in the release paper 125 is hooked onto the protrusion 104a of the support plate clamp 104. The dust collection lid 11 is then closed.

The dust collection lid 11 is biased in the opening direction by the coil spring 110 as shown in FIG. 8. Two coil springs 110 are arranged side by side in the left-right direction. The lower end 110a of one of the coil springs 110 is hooked on the fixed part 106 of the vacuum cleaner body 10, and the upper end 110b of the other coil spring is in contact with the dust collection lid 11. With this configuration, the dust collection lid 11 is biased in the opening direction. 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. As a result, during manufacturing and assembly, after the coil spring 110 is attached to the fixed part 106, the bent part acts as a guide when attaching the dust collection lid 11 while holding down the end of the coil spring, making it easy to attach.

The inner wall 12a of the dust collection section 12, which is separated from the electric blower 14, is formed with a communication opening 151 that communicates with the space in which the control board 15 is housed. In the vacuum cleaner 1, the control software written in the control board 15 may be rewritten for maintenance or to improve malfunctions. In the second embodiment, a tool can be inserted through the communication opening 151 to rewrite the control software. The communication opening 151 is arranged outside the dust collection section packing 127, so that it is unrelated to the airtight configuration of the dust collection section 12. During normal use, the communication opening 151 needs to be closed so that the user does not touch the control board 15. Therefore, in the second embodiment, a label 152 is attached to close the communication opening 151. The model of the dust collection filter 120 attached to the dust collection section 12 is written on the label 152. The user can purchase a replacement dust collection filter 120 by looking at the model written on the label 152. In addition, since the user can easily confirm the model, it is possible to prevent a dust collection filter 120 of a different model from being mistakenly attached. The attachment surface of the label 152 is inclined so that the upper side is rearward relative to the lower side with respect to a line perpendicular to the rotation center line D of the rotation shaft 142 of the electric blower 14 (see FIG. 4). This makes it easy for the user to see the model written on the label 152. Similarly, the attachment surface of the label 152 is inclined so that the upper side is rearward relative to the lower side with respect to a line perpendicular to the parallel line F of the control board 15 (see FIG. 4). This makes it easy to grasp the position of the control software rewriting connector (not shown) on the control board 15, improving workability. Therefore, the attachment surface of the label 152 is not perpendicular to the rotation center line D of the rotation shaft 142 of the electric blower 14 and the parallel line F of the control board 15.

In addition, 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 latticed to prevent the user from accidentally putting his/her fingers into the electric blower 14 while ensuring an air inflow path.

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 FIG. 9, the filter frame 18 has a lattice portion 18a with a large opening in the front-rear direction, and the protective filter 180 is supported in contact with the front surface of the lattice portion 18a. As a result, even if the bag member 121 expands, it abuts against the lattice portion 18a in a manner sandwiching the protective filter 180, so that the bag member 121 and the protective filter 180 are prevented from directly blocking the inlet portion of the electric blower 14, and the suction force can be easily maintained. The filter frame 18 also has an upper opening 18b and a side opening 18c. This makes it easier to maintain suction power by sucking in air from the surrounding openings, even if the lattice section 18a, which has openings in the front and rear directions, becomes blocked by the bag member 121.

When the electric blower 14 is driven and suction force is generated, the dust collection lid 11 bends inward due to negative pressure. The inside of the dust collection lid 11 is provided with 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, preventing the dust collection lid 11 from opening.

When the bag member 121 becomes full of dust and the dust collection filter 120 needs to be replaced, the dust collection lid 11 is rotated open, the support plate 122 hooked on the claw portion of the support plate clamp 104 is shifted from the position of the claw portion, and the dust collection filter 120 is pulled upward (Figure 7).

The bag member 121 swells and sticks 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 the second embodiment, as shown in Figs. 10(A) and 10(B), the filter frame 18 can slide in a substantially vertical direction, so that when the dust collection filter 120 is pulled upward, the filter frame 18 also slides upward, making it easy to pull up the dust collection filter 120. Furthermore, in the second embodiment, a raised shape 18d is provided on the upper part of the filter frame 18 (Fig. 9). As a result, when the bag member 121 swells to the extent that it sticks to the filter frame 18, the bag member 121 slips under the raised shape 18d, so that 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 (Figs. 10(A) and (B)).

The filter frame 18 is provided with a convex portion 18e, and the inner wall 12a of the dust collecting section 12 on the electric blower 14 side is provided with a concave portion 12c, which is a groove of a substantially rectangular shape (FIG. 9). The concave portion 12c is larger in the vertical direction than the convex portion 18e, and the filter frame 18 is provided on the dust collecting section 12 in such a manner that the convex portion 18e fits into the concave portion 12c. As a result, the filter frame 18 can slide in the vertical direction, and when the filter frame 18 is pulled out, the convex portion 18e hits the upper end surface of the concave portion 12c to prevent it from coming off. The position of the concave portion 12c does not overlap with the electric blower opening 12b in the horizontal direction. As a result, the size of the concave portion 12c in the vertical direction, and therefore the sliding range of the filter frame 18, is not easily affected by the size of the electric blower opening 12b. In the first embodiment, the concave portion 12c is provided on the electric blower 14 side of the inner wall 12a, but it may be provided on the side of the inner wall 12a. For example, if the horizontal size of the electric blower opening 12b occupies most of the inner wall 12a on the electric blower 14 side, there will be a limit to the space available for providing the recess 12c in the inner wall 12a on the electric blower 14 side, but this problem can be avoided by providing the recess 12c in the inner wall 12a on the side.

In addition, the hook hole 126 formed in the release paper 125 hooks onto the protrusion 104a of the support plate clamp 104, so that when the dust collection filter 120 is pulled upward, the release paper 125 is rolled up from the seal portion 124, and the seal portion 124 is further pulled and folded back onto the surface side of the support plate 122, so that the seal portion 124 adheres to the surface of the support plate 122 and closes the inlet 122a. This makes it possible to prevent dust from spilling out of the inlet 122a.

The dust collection filter 120 in the second embodiment is a disposable dust collection filter that is replaced when it becomes full of dust. For this reason, it is necessary to have dust collection filters ready to be replaced, but there is a risk that one may forget to buy one. Therefore, a sensor that detects when the dust collection filter 120 has been replaced may be provided in the vacuum cleaner 1, and dust collection filters 120 may be automatically ordered 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, and 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.

The third embodiment will be described with reference to Figs. 11 to 15. In the third embodiment, the configuration of the dust collection unit 12 will be described. Fig. 11 is an exploded perspective view of the vacuum cleaner 1 with the connection tube 101 and the dust collection unit 12 disassembled according to the third embodiment of the present invention. Fig. 12 is an exploded perspective view of the connection tube 101 according to the third embodiment of the present invention with the button cover 102 removed. Fig. 13 is an exploded perspective view of the connection tube 101 in the state shown in Fig. 12 with the button cover 102 attached to the connection tube 101. Fig. 14 is an oblique view of the mouth packing 103 according to the third embodiment of the present invention as seen from the front. Fig. 15 is an oblique view of the mouth packing 103 according to the third embodiment of the present invention as seen from the rear. The same reference numerals are used for the configurations common to the first and second embodiments, and detailed descriptions thereof will be omitted.

A port gasket 103 is attached to the front of the dust collection unit 12 from the inside of the dust collection unit 12, and a connection pipe 101 is attached to the outside (front side) of the dust collection unit 12. The end of the connection pipe 101 contacts the front lip 103b of the port gasket 103. Since the port gasket 103 is made of a flexible material, when the front lip 103b contacts the connection pipe 101, airtightness can be ensured between the suction passage 101a and the inlet passage 103a.

A dust collection section gasket 127 is disposed on the upper opening edge of the lower case 10a, which forms the lower side of the dust collection section 12, to come into contact with the dust collection lid 11 when the dust collection lid 11 is closed to keep the dust collection section 12 airtight. The front of the dust collection section gasket 127 is disposed between the support plate clamp 104 and the dust collection lid clamp 112, and the rear of the dust collection section gasket 127 is disposed behind the filter frame 18. A gasket fixing portion 127a is formed at the front end of the dust collection section gasket 127 (Figs. 11 and 12).

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

In this embodiment, the dust collection lid 11 has a claw portion facing forward and is hooked by the dust collection lid clamp 112. However, the dust collection lid 11 may have a claw portion facing backward and a claw receiving portion provided on the button cover 102 for hooking, so that the user can directly place their hand on the dust collection lid 11 to open it. In that case, the dust collection lid clamp 112 can be omitted.

A lead wire (not shown) that supplies power to the suction port is wired between the dust collection unit gasket 127 and the lower case 10a. Because the dust collection unit gasket 127 is attached to the lower case 10a side, the lead wire is not visible to the user, ensuring a stylish design.

The dust collection section gasket 127 is also shaped so that the left and right sides are lowered and the front and rear sides are raised. This ensures a path for the front inlet and the rear motor inlet, while the left and right sides are lowered, widening the range of the dust collection lid 11. This makes it easier for the user to approach the dust collection section 12 when the dust collection lid 11 is opened, and makes it easier to replace the dust collection filter 120.

As shown in Figures 14 and 15, the mouth gasket 103 has 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 connection part 103e that connects the check valve 103d and the rear lip 103c.

The mouth gasket 103 is made of a flexible material, so that 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 port 122a.

The check valve 103d operates to open downstream (rearward) with the check valve connection part 103e as a fulcrum. By making the check valve connection part 103e convex toward the rear lip 103c and concave toward the front lip 103b with respect to the check valve 103d, it is easier to operate in the direction of the rear lip 103c than when the check valve connection part 103e and the check valve 103d are on the same surface. In addition, in the inflow passage 103a of the mouth packing 103, a pair of inner passage protrusions 103f protruding toward the side where the inflow passage 103a is not present are provided on the left and right. In addition, the inner passage protrusions 103f are also provided at diagonal positions relative to the check valve connection part 103e in the inflow passage 103a. The inner passage protrusions 103f prevent the check valve 103d from opening upstream (forward). This can prevent 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 arranging a passage protrusion 103f at the position where the check valve rib 103g is arranged, it is possible to prevent the check valve 103d from bending toward the front lip 103b due to the weight of the dust. The passage protrusion 103f is bent toward the front lip 103b in an L-shape, so that when the mouth packing 103 is pulled toward the rear lip 103c, the mouth packing 103 is caught by the passage protrusion 103f, making it difficult for the mouth packing 103 to come off. The end face of the inner passage projection 103f on the front lip 103b side is chamfered to reduce flow path loss during suction and to reduce the amount of sucked dust that gets caught on the inner passage projection 103f. The rear lip 103c has an outer lip 103j and an inner lip 103i. When the dust collection filter 120 is attached, each lip flexes to ensure airtightness between the mouth packing 103 and the support plate 122. The inner diameter of the tip of the inner lip 103i when the dust collection filter 120 is attached is made smaller than the outer diameter of the inlet 122a of the dust collection filter 120, thereby reducing flow path loss and dust getting caught on the support plate 122. The mouth packing 103 has a spill prevention rib 103h on the inside of 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 downward, dust accumulated on the dust collection filter 120 is caught by the spill prevention rib 103h, and the dust can be reduced from flowing back toward the suction passage 103a. The passage protrusion 103f may be provided on the lower case 10a, and a through hole may be provided in the port packing 103. In that case, the passage protrusion 103f can be formed from the hard material of the lower case 10a, which can increase the effect of suppressing dust leakage.

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 inside of the connecting pipe 101. When the extension pipe 20 is inserted into the inside of the connecting pipe 101, the end of the extension pipe 20 comes into contact with the front lip 103b of the mouth gasket 103. This ensures airtightness between the internal passage of the extension pipe 20 and the inlet passage 103a of the mouth gasket 103.

In this embodiment, a flexible gasket 103 is provided between the connecting tube 101 and the dust collection section 12, ensuring airtightness between the suction passage 101a of the connecting tube 101 and the inlet passage 103a of the gasket 103, between the internal passage of the extension tube 20 and the inlet passage 103a of the gasket 103, and between the inlet passage 103a of the gasket 103 and the inlet 122a of the support plate 122 (dust collection filter 120).

The fourth embodiment will be described with reference to Figs. 16 and 17. Fig. 16 is a bottom view of the electric vacuum cleaner 1 according to the fourth embodiment of the present invention, as viewed from below. Fig. 17 is a left side view of the electric vacuum cleaner 1 according to the fourth embodiment of the present invention, as viewed from the left side. The same reference numerals are used for the configurations common to the first to third embodiments, and detailed descriptions thereof will be omitted.

The electric 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 charge capacity of the battery pack 16 decreases, it is necessary to charge it. As shown in FIG. 16, the bottom of the electric vacuum cleaner 1 is provided with a DC jack 19 for charging the battery pack 16.

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 surface (outer periphery) of the vacuum cleaner body 10. If the vacuum cleaner 1 is placed on 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, which may damage the charging terminal 60 or scratch the floor surface Y.

Therefore, in the electric vacuum cleaner 1 of this embodiment, a lower body protrusion 10c that protrudes downward is provided on the lower part of the lower case 10a of the vacuum cleaner body 10.

When the bottom of the rear end of the vacuum cleaner 1 (battery pack 16) is connected in a straight line to the lower body protrusion 10c, a space is formed between the bottom of the rear end of the vacuum cleaner 1 (battery pack 16) and the lower body protrusion 10c. In other words, when the vacuum cleaner 1 is placed on floor surface Y, a space is formed between the bottom of the rear end of the vacuum cleaner 1 (battery pack 16) and the lower body protrusion 10c, away from the floor surface Y. Then, 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 it is connected to the DC jack 19.

According to the fourth embodiment, 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, so damage to the charging terminal 60 and scratches on the floor surface Y can be suppressed.

Figure 18 is an exploded perspective view of the vacuum cleaner 1 with the connecting pipe 101, the lower case 10a, and the upper case 10b disassembled according to the fifth embodiment of the present invention. Figure 19 is a perspective view of the pack chamber 10e according to the fifth embodiment of the present invention with the dust collection section gasket 127 removed. The same reference numerals are used for the components common to the first to fourth embodiments, and detailed descriptions thereof will be omitted.

The vacuum cleaner body 10 includes a dust collection section 12 that collects the sucked dust, a dust collection lid 11 that forms the upper part of the dust collection section 12 and covers it in an openable and closable manner, and a pack chamber 10e that forms the lower part of the dust collection section 12. The dust collection lid 11 opens and closes around a rotating shaft 105, and the dust collection section 12 is held in a closed state by a dust collection lid clamp 112 (locking mechanism). The pack chamber 10e includes a dust collection section gasket 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 section gasket 127 to maintain airtightness within the dust collection section 12. The pack chamber 10e is made of, and is easy to maintain airtightness by minimizing factors that cause airtightness to leak. In this embodiment, the dust collection section gasket 127 is made of a flexible material, but it is not limited to a flexible material as long as it can maintain airtightness within the dust collection section 12 by contacting the dust collection lid 11.

If the contact between the dust collection lid 11 and the dust collection unit gasket 127 becomes misaligned, it will be impossible to maintain airtightness within the dust collection unit 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, there is a risk that the tolerance accumulation will become large and airtightness will no longer be maintained. Therefore, in the vacuum cleaner 1 of this embodiment, the fixing parts of the dust collection lid 11 and the fixing parts of the dust collection lid clamp 112 are each provided in the pack chamber 10e, and the mounting structure for the parts necessary to ensure airtightness of the dust collection unit 12 is concentrated in the pack chamber 10e. This makes it possible to minimize the tolerance accumulation in the airtight space, making it easier to maintain airtightness.

A vibration-proof rubber 144 (vibration absorbing member) is provided at the rear of the pack chamber 10e. The vibration-proof rubber 144 secures at least a part of the electric blower 14, ensuring airtightness from the dust collection section 12 to the electric blower 14 and absorbing vibrations of the electric blower 14.

The vacuum cleaner 1 described in the first to fourth embodiments drives the suction motor (not shown) provided in the suction body 30 with power supplied from the battery pack 16, and rotates the rotating brush (not shown) provided in the suction body. For this reason, it is necessary to supply power from the control board 15 housed in the motor chamber 10f (electric blower housing section) through the connection tube 101 and the extension tube 20. The conductive part needs to be hidden from the viewpoint of safety and design, but the pack chamber 10e has a conductive part 108 disposed between the side wall 107a in contact with the dust collection section packing 127 and the outer shell of the pack chamber 10e, and the inner wall 12a of the dust collection section 12 separated from the electric blower 14 has a wiring opening 153 that communicates with the space in which the control board 15 is housed. By wiring from the wiring opening 153 through the conductive part 108, the wiring and the wiring opening 153 can be hidden by the dust collection section packing 127, and safety and design can be ensured. By locating the wiring opening 153 outside the dust collection unit packing 127, it is possible to ensure airtightness by making it a configuration that is unrelated to the airtight configuration of the dust collection unit 12. In addition, it is desirable for the vacuum cleaner 1 to be small. By not providing any parts to hide the wiring, but hiding it with the dust collection unit packing 127, which is essential to the dust collection unit 12, and the outer shell of the dust collection unit 12, the number of parts is reduced and the size and weight are reduced.

The dust collection section packing 127 is fixed by being sandwiched between the side wall 107a and the packing fixing rib 107b. Generally, the rib needs to stand flat to prevent molding defects such as sink marks, but providing the side wall 107a and the packing fixing rib 107b on the dust collection lid 11 may significantly impair the design of the vacuum cleaner 1. Therefore, in the vacuum cleaner 1 of this embodiment, the pack chamber 10e is provided with a pack chamber flat surface 109, and the pack chamber flat surface 109 is provided with the side wall 107a and the packing fixing rib 107b, resulting in a structure that does not impair the design.

The sixth embodiment will be described with reference to Figs. 20 to 23. The sixth embodiment describes another method for attaching a dust-collecting filter to a dust-collecting section. Fig. 20 is a perspective view of a vacuum cleaner 1 (a dust-collecting filter-type vacuum cleaner) according to the sixth embodiment of the present invention.

(a) shows the vacuum cleaner body, and (b) shows the state in which it is stored in the stand 50. FIG. 21 is a perspective view of the dust collection filter case 500 according to the sixth embodiment of the present invention. (a) shows the state in which the dust collection filter case is stored in the dust collection section 12, and (b) shows the state in which each component is slid and rotated to pull the dust collection filter case out of the dust collection chamber. FIG. 22 is a cross-sectional view of A-A in FIG. 20. (a) shows the state before the dust collection filter mounting part of the dust collection filter case is stored in the dust collection chamber, and (b) shows the state in which the dust collection filter mounting part is stored in the dust collection chamber. FIG. 23 is a diagram showing a series of operations when removing the dust collection filter according to the sixth embodiment of the present invention. (a) shows the dust collection lid 11 in a closed state during normal cleaning, (b) shows the dust collection lid 11 in an open state, (c) shows the dust collection filter case pulled out, (d) shows the dust collection filter attachment part rotated so that the opening of the dust collection filter faces forward instead of downward, and (e) shows the dust collection filter removed from the dust collection filter case.

In this embodiment, the dust collection unit 12 further includes a dust collection filter case 500 that is responsible for fixing and positioning the dust collection filter 120 as shown in FIG. 21.

The dust collection filter case 500 includes a first guide portion 501 provided on the lower case 10a, a second guide portion 502 provided on the first guide portion 501, and a dust collection filter mounting portion 503 provided on the second guide portion 502. The first guide portion 501, the second guide portion 502, and the dust collection filter mounting portion 503 are each provided so as to be slidable in the vertical direction. The dust collection filter mounting portion 503 is also attached so as to be rotatable about the rotation axis H of the second guide portion 502. With this configuration, when replacing the dust collection filter 120, the dust collection filter mounting portion 503 is pulled out of the dust collection portion 12, and then the orientation of the opening 503a of the dust collection filter mounting portion 503 can be changed. As a result, even if the inlet 122a of the dust collection filter 120 in the dust collection unit 12 faces downward from the horizontal direction when cleaning the floor or storing it in the stand 50, when the dust collection filter 120 is removed from the dust collection filter attachment unit 503, the inlet 122a of the dust collection filter 120 can be made to face upward from the horizontal direction, preventing dust from spilling out.

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, and the sliding direction of each part constituting the dust collection filter case is not limited to the vertical direction. For example, the dust collection filter case may be structured to be pulled out in the left-right direction.

In addition, in this embodiment, the dust collection filter case is pulled out of the dust collection chamber by linear sliding, and then the dust collection filter mounting part is rotated to change the orientation of the dust collection filter, which is a two-step process, but the sliding trajectory is not limited to a linear one, and the process is not limited to two steps.

For example, it may slide in a substantially circular or elliptical orbit, and the orientation of the dust collection filter may change simultaneously with the sliding.

The dust collection filter mounting part 503 has 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 part 503 by sandwiching a compression spring 505, and the dust spill prevention cover 506 closes the opening 504 of the dust collection filter mounting part 503 by the elastic force of the compression spring 505 unless an external force is applied.

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

The dust spill prevention lid 506 is provided with a receiving rib 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-aside protrusion 508 provided on the vacuum cleaner body, and only the dust spill prevention lid 506 is pushed aside in the direction that opens the opening 504 of the dust collection filter attachment part 503.

With the above configuration, when the dust collection filter attachment section 503 is in the dust collection chamber, the opening 504 is open, and in other states, the opening 504 is closed by the dust spill prevention cover 506. This makes it possible to prevent dust from spilling out.

The present invention is not limited to the above-described embodiments, but includes various modified examples. For example, the above-described embodiments have been described in detail to make the present invention easier to understand, and the present invention is not necessarily limited to those having all of the configurations described. It is also possible to replace part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. It is also possible to add, delete, or replace part of the configuration of each embodiment with other configurations.

1...Vacuum cleaner, 10...Vacuum cleaner body, 10a...Lower case, 10b...Upper case, 10c...Main body lower projection, 10d...Rib, 10e...Pack chamber, 10f...Motor chamber, 101...Connecting tube, 101a...Suction passage, 101b...Suction port, 102...Button cover, 102a...Lock button, 103...Port gasket, 103a...Inlet passage, 103b...Front lip, 103c...Rear lip, 103d...Check valve, 103e...Check valve connection, 103f...passage inner projection, 103g...check valve rib, 103h...spill prevention rib, 103i...inner lip, 103j...outer lip, 104...support plate clamp, 104a...projection portion, 105...rotation shaft, 106...fixing portion, 107a...side wall, 107b...packing fixing rib, 108...conductive portion, 109...pack chamber flat surface, 11...dust collection lid, 11a...dust collection lid claw, 110...coil spring, 110a...lower end portion, 110b...upper end portion, 1 11...contact portion, 112...dust collection lid clamp, 12...dust collection portion, 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 portion, 125...release paper, 126...hook hole, 127...dust collection portion packing, 127a...packing fixing portion, 13...handle portion, 14...electric blower, 141...fan, 142...rotation Shaft, 143...motor, 144...anti-vibration rubber, 15...control board, 151...connection opening, 152...label, 153...wiring opening, 16...battery pack, 17...operation switch, 18...filter frame, 18a...lattice section, 18b...top opening, 18c...side opening, 18d...raised shape, 18e...convex section, 180...protective filter, 19...DC jack, 20...extension tube, 30...suction mouth, 40...brush section, 50...stand, 60...charging terminal

Claims (3)

An electric vacuum cleaner having a vacuum cleaner body, an electric blower, a dust collecting section, and a connecting pipe provided in front of the vacuum cleaner body,
an inlet passage connecting the dust collecting unit and the connecting pipe;
the dust collecting unit has a fixing portion for detachably holding a dust collecting filter including a support plate having an opening and a bag member, and is disposed below the connecting pipe;
The inlet passage is connected to the dust collecting unit from the connecting pipe toward the opening,
The central axis of the connection pipe and the central axis of the opening of the support plate intersect with each other,
The vacuum cleaner according to claim 1, wherein a central axis of the inflow passage intersects with a central axis of the support plate such that a rear side of the inflow passage is located below the central axis of the support plate . 2. The vacuum cleaner according to claim 1,
2. The vacuum cleaner according to claim 1, wherein a rotation center line of a rotation shaft of the electric blower is parallel to a center axis of the support plate of the dust collecting filter. 2. The vacuum cleaner according to claim 1,
The vacuum cleaner according to claim 1, wherein a central axis of the inlet passage is at a different angle from a central axis of the connecting pipe and a central axis of the support plate.

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