Vacuum cleaners and vacuum cleaner systems

Abstract

To provide a vacuum cleaner for facilitating removal of dust entangled with a rotational cleaning body of a suction body in the vacuum cleaner.SOLUTION: A vacuum cleaner 1 comprises: a rotational cleaning body 10 for raking up dust; a suction body 6 including drive means for rotating the rotational cleaning body and a bumper part 21 which extends in a rotation axial direction of the rotational cleaning body, is arranged to face the rotational cleaning body, and is advanceable / retreatable with respect to the rotational cleaning body; and a cleaner body 4 which has an electric blower for generating negative pressure and is connected to the suction body. The bumper part includes: a dust removal mechanism 25 having a blade part 25a for cutting dust attached to the rotational cleaning body when moved in a direction of the rotational cleaning body; and a protection part 28 which is arranged close to the dust removal mechanism so as to sandwich the dust removal mechanism and is formed to be higher than an upper end of the blade part by defining a direction separating in the direction of the rotational cleaning body from the bumper part on a side facing the rotational cleaning body as a height direction.SELECTED DRAWING: Figure 13

Description

[Technical Field]

[0001] This disclosure relates to vacuum cleaners and vacuum cleaner systems, and more particularly to a dust removal mechanism for a suction body. [Background technology]

[0002] A rotating cleaning body is attached to the vacuum cleaner suction body, and as the rotating cleaning body rotates, it scrapes up dust from the surface to be cleaned. However, if debris such as hair or thread gets tangled in the rotating cleaning body, the dust removal performance decreases. The user must remove the debris tangled in the rotating cleaning body using a cutter or other tool, making the removal process cumbersome. To address this issue, a vacuum cleaner has been disclosed that has a dust removal part that protrudes from the inner wall of the vacuum cleaner suction body so that it comes into contact with the rotating cleaning body, and the dust removal part catches and removes the dust tangled in the rotating cleaning body (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2020-92974 Summary of the Invention [Problem to be solved by the invention]

[0004] In the vacuum cleaner described in Patent Document 1, the dust removal mechanism is configured in a simple protrusion shape, and can only catch dirt tangled in the rotating cleaning body. If the dirt tangled in the rotating cleaning body cannot be caught and removed, the user must manually remove the dirt using a cutter or the like to prevent the dirt from becoming tangled in the rotating cleaning body again, making removal even more difficult, which creates usability issues.

[0005] This disclosure has been made to solve the above problems, and an object of this disclosure is to provide an electric vacuum cleaner and a vacuum cleaner system equipped with a suction body that can efficiently remove dust adhering to a rotary cleaning body. [Means for solving the problem]

[0006] The electric vacuum cleaner according to this disclosure is an electric vacuum cleaner comprising: a suction port for sucking in dust; a rotary cleaning body rotatably arranged facing the suction port and for scraping up dust from a surface to be cleaned; a suction body having a drive means for rotating the rotary cleaning body and a bumper part extending in the direction of the rotation axis of the rotary cleaning body and arranged opposite the rotary cleaning body so as to be able to advance and retreat relative to the rotary cleaning body; and a vacuum cleaner body having an electric blower for generating negative pressure and connected to the suction body, wherein the bumper part is The front surface of the early stage suction body comes into contact and is pushed in. When the cleaning device moves in the direction of the rotary cleaning body, the cleaning device cuts off dust adhering to the rotary cleaning body. for this purpose, the rotary cleaning body is opposed to the rotary cleaning body in a direction perpendicular to the rotation axis direction. The cleaning device comprises a dust removal mechanism having a blade portion, and a protective portion that is arranged in the vicinity of the dust removal mechanism so as to sandwich the dust removal mechanism, and that is formed higher than the upper end of the blade portion, with the height direction being the direction away from the bumper portion on the side facing the rotating cleaning body toward the rotating cleaning body.

[0008] The vacuum cleaner system according to the present disclosure includes a suction port for sucking in dust, Intake port a vacuum cleaner system comprising: an electric vacuum cleaner having a vacuum cleaner body connected to the suction body, a rotary cleaning body rotatably arranged facing the surface to be cleaned, a suction body having a drive means for rotating the rotary cleaning body, and an electric blower for generating negative pressure; and an electric stand unit having a mounting portion on which the suction body of the vacuum cleaner is placed, wherein the mounting portion is provided with a dust removal mechanism having a blade portion for cutting dust adhering to the rotary cleaning body, and a protective portion which is arranged near the dust removal mechanism so as to sandwich the dust removal mechanism and is formed higher than the upper end of the blade portion with the height direction extending upward from the upper surface of the mounting portion. [Effects of the Invention]

[0009] According to this disclosure, dust adhering to the rotary cleaning body can be efficiently removed. Also, a dust removal mechanism with a protective part provided near the dust removal mechanism can be provided with safety ensured. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view showing a vacuum cleaner according to a first embodiment of the present disclosure. [Figure 2] FIG. 1 is a side view showing a vacuum cleaner according to a first embodiment of the present disclosure. [Figure 3] FIG. 1 is a perspective view of a hose of a vacuum cleaner according to a first embodiment of the present disclosure. [Figure 4] 1 is a front view of a hose of the electric vacuum cleaner according to a first embodiment of the present disclosure, viewed from a first pin receiving portion side. [Figure 5] FIG. 2 is a perspective view of an extension tube of the vacuum cleaner according to the first embodiment of the present disclosure. [Figure 6] 1 is a front view of an extension tube of the electric vacuum cleaner according to the first embodiment of the present disclosure, viewed from the second pin receiving portion side. [Figure 7] 2 is a rear view of the extension tube of the electric vacuum cleaner in the first embodiment of the present disclosure, as viewed from the first pin portion side. FIG. [Figure 8] FIG. 1 is a perspective view of a suction body of a vacuum cleaner according to a first embodiment of the present disclosure. [Figure 9] FIG. 1 is a side view of a suction body of the vacuum cleaner in accordance with the first embodiment of the present disclosure. [Figure 10] FIG. 2 is a rear view of the suction body of the vacuum cleaner in the first embodiment of the present disclosure. [Figure 11] FIG. 2 is a bottom view of the suction body of the vacuum cleaner in the first embodiment of the present disclosure. [Figure 12] FIG. 1 is a perspective view of a rotary cleaning element of an electric vacuum cleaner according to a first embodiment of the present disclosure. [Figure 13] 1 is a cross-sectional view of a main part of a suction body of a vacuum cleaner according to a first embodiment of the present disclosure. [Figure 14]FIG. 2 is a perspective view of a surface of a bumper part of the vacuum cleaner according to the first embodiment of the present disclosure. [Figure 15] FIG. 2 is a perspective view of a rear surface of a bumper part of the vacuum cleaner according to the first embodiment of the present disclosure. [Figure 16] FIG. 11 is a perspective view of a lower case body of a vacuum cleaner according to a second embodiment of the present disclosure, as viewed from below. [Figure 17] FIG. 11 is a side cross-sectional view of a suction body of an electric vacuum cleaner according to a second embodiment of the present disclosure. [Figure 18] FIG. 11 is a perspective view of a state in which a vacuum cleaner of a vacuum cleaner system according to a third embodiment of the present disclosure is attached to a desk lamp. [Figure 19] FIG. 11 is a perspective view of an electric vacuum cleaner of a vacuum cleaner system according to a third embodiment of the present disclosure. [Figure 20] FIG. 11 is a perspective view of a desk lamp of a vacuum cleaner system according to a third embodiment of the present disclosure. [Figure 21] FIG. 11 is an enlarged perspective view of a main part of a desk lamp of a vacuum cleaner system according to a third embodiment of the present disclosure. [Figure 22] FIG. 2 is an enlarged perspective view of a dust removal mechanism and a protection unit common to the embodiments of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0011] The embodiments for carrying out this disclosure will be described with reference to the accompanying drawings. In each drawing, the same or corresponding parts are denoted by the same reference numerals. Duplicate descriptions of these parts will be appropriately simplified or omitted. The present disclosure is not limited to the following embodiments, and various modifications are possible within the scope of the present disclosure.

[0012] Embodiment 1 FIG. 1 is a perspective view of the vacuum cleaner 1 according to embodiment 1 of the present disclosure. FIG. 2 is a side view of the vacuum cleaner 1 according to embodiment 1 of the present disclosure. In FIG. 2, arrows indicate the up-down and front-to-back directions of the vacuum cleaner 1 when cleaning is performed using the vacuum cleaner main body 4. FIG. 3 is a perspective view of a hose of the vacuum cleaner according to embodiment 1 of the present disclosure. FIG. 4 is a front view of the hose of the vacuum cleaner according to embodiment 1 of the present disclosure, seen from the first pin receiving portion side. FIG. 5 is a perspective view of an extension tube of the vacuum cleaner according to embodiment 1 of the present disclosure. FIG. 6 is a front view of the extension tube of the vacuum cleaner according to embodiment 1 of the present disclosure, seen from the second pin receiving portion side. FIG. 7 is a rear view of the extension tube of the vacuum cleaner according to embodiment 1 of the present disclosure, seen from the first pin portion side. FIG. 8 is a perspective view of a suction body of the vacuum cleaner according to embodiment 1 of the present disclosure. FIG. 9 is a side view of the suction body of the vacuum cleaner according to embodiment 1 of the present disclosure. FIG. 10 is a rear view of the suction body of the vacuum cleaner according to embodiment 1 of the present disclosure. FIG. 11 is a bottom view of the suction body of the vacuum cleaner according to embodiment 1 of the present disclosure. FIG. 12 is a perspective view of a rotary cleaning body of the vacuum cleaner according to embodiment 1 of the present disclosure. Fig. 13 is a cross-sectional view of a main part of the suction body of the vacuum cleaner in accordance with embodiment 1 of this disclosure. Fig. 14 is a perspective view of the front side of the bumper part of the vacuum cleaner in accordance with embodiment 1 of this disclosure. Fig. 15 is a perspective view of the back side of the bumper part of the vacuum cleaner in accordance with embodiment 1 of this disclosure. Fig. 22 is an enlarged perspective view of a dust removal mechanism and a protective part common to all embodiments of this disclosure.

[0013] In this embodiment, a user moves the suction body 6 over the surface to be cleaned to clean it. In this embodiment, a canister type vacuum cleaner is used as an example of the vacuum cleaner 1, but an upright type, stick type, handheld type vacuum cleaner, etc. may also be used.

[0014] The electric vacuum cleaner 1 is composed of a vacuum cleaner main body 4, a hose 2, an extension tube 5, and a suction body 6. One end of the hose 2 is connected to the suction port of the vacuum cleaner main body 4. One end of the extension tube 5 is connected to the other end of the hose 2. The suction body 6 is connected to the other end of the extension tube 5.

[0015] The vacuum cleaner body 4 of this electric vacuum cleaner 1 is composed of an electric blower, a control circuit, a dust-collecting filter, etc. The electric blower generates negative pressure. When the suction body 6 is connected to the vacuum cleaner body 1, negative pressure is generated at the suction port 7 of the suction body 6, which sucks in air containing dust from the surface to be cleaned (dust-laden air). The suction port 7 of the suction body 6 is placed on the floor surface and is an opening for sucking in the dust-laden air. The dust-laden air that flows in from the suction port 7 flows into the vacuum cleaner body 4 via the joint part 8, the extension tube 5, and the hose 2. The vacuum cleaner body 4 is equipped with a dust collection part that captures dust in the dust-laden air that flows into the vacuum cleaner body 4.

[0016] The hose 2 is configured integrally with a hand-operated control unit, which is provided with a handle 3 that is held by the user. The handle 3 has operation buttons for turning the electric blower on and off and for turning on and off the brush motor that rotates the rotary cleaning body 10 disposed in the suction body 6.

[0017] The handle portion 3 includes a first conductive portion 13 for supplying power from the vacuum cleaner body 4 to the extension tube 5. The first conductive portion 13 includes a first sheet metal portion 14 on the side where it connects with the extension tube 5. As shown in FIG. 4 , the handle portion 3 includes a first pin receiving portion 15. The first sheet metal portion 14 is disposed adjacent to the first pin receiving portion 15.

[0018] The extension tube 5 includes a second conductive portion 16 for supplying power from the handle portion 3 to the joint portion 8. The second conductive portion 16 includes a second sheet metal portion 17 on the side connecting with the joint portion 8. As shown in FIG. 6, the extension tube 5 includes a second pin receiving portion 18. The second sheet metal portion 17 is disposed adjacent to the second pin receiving portion 18. As shown in FIG. 7, the second conductive portion 16 includes a first pin portion 19 on the side connecting with the handle portion 3.

[0019] When the handle portion 2 and the extension tube 5 are connected, the first pin portion 19 is inserted into the first pin receiving portion 15 and comes into contact with the first sheet metal portion 14. Therefore, when the handle portion 3 and the extension tube 5 are connected, a conductor is formed from the first conductive portion 13 to the second conductive portion 16, and power is supplied from the vacuum cleaner body 4 to the extension tube 5.

[0020] As shown in Fig. 8, the suction body 6 includes a joint portion 8, an upper case body 23, and a bumper portion 21, and as shown in Fig. 11, it includes a suction port 7 and a lower case body 24. The joint portion 8 includes a second pin portion 20, and is connected to the second pin receiving portion of the extension tube 5. The bumper portion 21 is arranged so as to be sandwiched from above and below by the case body 24, which is the upper case body 23.

[0021] The suction body 6 is equipped with a rotary cleaning body 10. As shown in FIG. 12, the rotary cleaning body 10 has a shaft 11 rotatably supported by the suction body 6, with multiple spiral grooves formed on the outer periphery, and cleaning elements 12 embedded in the grooves. A motor is built into the suction body 6, and power is transmitted to the rotary cleaning body 10 via a belt or the like, causing the rotary cleaning body to rotate in a predetermined direction. As the rotary cleaning body 10 rotates, the cleaning elements 12 scrape up dust on the surface to be cleaned. The scraped-up dust on the surface to be cleaned is sucked into the suction port 7 by an airflow generated by an electric blower and removed.

[0022] The suction body 6 is provided with a motor that drives the rotary cleaning body 10. The joint portion 8 is provided with an electric wire portion for supplying power from the extension tube 5 to the motor. The electric wire portion has a second pin portion 20 on the side that connects to the extension tube 3, and the other end is connected to the motor.

[0023] When the extension pipe 5 and the joint portion 8 are connected, the second pin portion 20 is inserted into the second pin receiving portion 18 and comes into contact with the second sheet metal portion 17. Therefore, when the extension pipe 5 and the joint portion 8 are connected, a conductor is formed from the second conductive portion 16 to the electric wire portion, and power is supplied from the extension pipe 5 to the joint portion 9 and then to the motor through the electric wire portion 23, causing the motor to rotate the rotating cleaning body 10.

[0024] This allows dust to be scraped off the surface to be cleaned by the rotation of the rotary cleaning body 10. Therefore, dust can be removed from the surface to be cleaned with less force and in a short time, making the cleaning work easier.

[0025] Next, the attracting body 6 will be described. As shown in Figure 11, wheels 27 are provided on the attracting body 6 at the lower side in the figure. The support member for these wheels 27 is configured to be freely rotatable, and this support member causes the wheels 27 to protrude when the attracting body 6 is floating above the floor surface, and the wheels 27 retract when the attracting body 6 is on the floor. The attracting body 6 has a built-in switch for switching the drive of the motor, and when the wheels 27 are retracted, the switch is turned on and the motor is driven.

[0026] The suction body 6 has a bumper portion 21 on its front side. The bumper portion 21 has a bumper outer periphery 22 made of a soft material, which protects the suction body 6 from scratches on the upper case body 23 and the lower case body 24 when the front surface of the suction body 6 comes into contact with a wall surface. The bumper portion 21 has a flat portion 26 on its upper side, and as shown in FIG. 11 , a portion of the flat portion 26 is sandwiched and fixed between the upper case body 23 and the lower case body 24. The bumper portion 21 is configured to protrude at an angle toward the surface that contacts the wall surface, creating a gap between the bumper outer periphery 22 and the lower case body. This state in which the front surface of the suction body 6 is not in contact with the wall surface is defined as the initial position of the bumper outer periphery 22. Because the bumper portion 21 is made of a soft material, when the front surface of the suction body 6 comes into contact with the wall surface and is pressed in, the bumper portion 21 protrudes toward the wall surface, causing the bumper outer periphery 22 to deform from the base of the flat portion 26 toward the rotating cleaning body 10. Eventually, the bumper outer periphery 22 comes into contact with the front surface of the lower case body 24, and the deformation ends. The position of the bumper outer periphery 22 in this state is defined as the end position. When the attracting body 6 separates from the wall surface, the bumper outer periphery 22 returns to its initial position.

[0027] 11, bumper outer periphery 22, which is the back surface of bumper part 21 facing rotary cleaning body 10, is provided with dust removal mechanism 25. Dust removal mechanism 25 is provided on bumper outer periphery 22. Deformation of bumper outer periphery 22 causes dust removal mechanism 25 to advance relative to rotary cleaning body 10 and come into contact with cleaning part 12, causing blade part 25a of dust removal mechanism 25, described below, to cut and remove dust entangled in rotary cleaning body 10. As a result, the cleaning part 12 of rotary cleaning body 10 can be kept free of dust.

[0028] 22, dust removal mechanism 25 is formed with sharp blade portion 25a capable of cutting dust adhering to rotary cleaning body 10. Blade portion 25a may be linear, uneven, arc-shaped, or the like.

[0029] As shown in FIG. 22 , protective portions 28 are provided near the dust removal mechanism 25, adjacent to both sides of the dust removal mechanism 25 so as to sandwich the dust removal mechanism 25. The protective portions 28 are provided on the bumper outer periphery 22. For example, the upper surface 28a of the protective portion 28 is formed parallel to the surface of the bumper outer periphery 22 on which the protective portion 28 is provided. The height direction is defined as the direction away from the bumper outer periphery 22, which is the bumper portion 21 facing the rotary cleaning body 10, and the height from the bumper outer periphery 22 to the upper surface 28a of the protective portion 28 is at least greater than the height from the bumper outer periphery 22 to the upper end of the blade portion 25a of the dust removal mechanism 25. Note that the height of the upper surface 28a of the protective portion 28 from the bumper outer periphery 22 is preferably greater than the height of the upper end of the dust removal mechanism 25 from the bumper outer periphery 22. With this configuration, when a user of the vacuum cleaner accidentally tries to touch dust removal mechanism 25, the user's fingers are supported by upper surface 28a of protective portion 28 and do not reach blade portion 25a, preventing the fingers from coming into contact with blade portion 25a and being cut, thereby ensuring safety. Protective portion 28 may be provided in the vicinity of dust removal mechanism 25 so as to surround dust removal mechanism 25. Protective portion 28 is molded when bumper portion 21 is molded, and is made of the same material as bumper portion 21.

[0030] The shape of blade portion 25a is changed according to the material and density of cleaning portion 12. For example, if cleaning portion 12 is made of a material that is difficult to cut with a blade, making the shape of blade portion 25a uneven will further improve dust removal performance. Having a shape suitable for cleaning portion 12 will lead to reduced deterioration of cleaning portion 12 and improved dust removal performance.

[0031] In addition to the above-described method, the protective portion 28 may be attached to the bumper portion 21 after molding, for example, by forming the protective portion 28 as a separate part from the bumper portion 21 and attaching the protective portion 28 to the bumper portion 21 using an adhesive.

[0032] 15, a single dust removal mechanism 25 and protective part 28 is arranged on the bumper part 21, or multiple dust removal mechanisms 25 and protective parts 28 are arranged, and when multiple dust removal mechanisms 25 are arranged, they are arranged at predetermined intervals along the length of the rotary cleaning body 10. By arranging multiple dust removal mechanisms 25, even long dust particles that become tangled in the length of the rotary cleaning body 10 can be efficiently removed.

[0033] The blade portion 25a of the dust removal mechanism 25 is disposed perpendicularly or obliquely relative to the rotation axis of the rotary cleaning body 10.

[0034] As shown in Figure 13, when the bumper outer periphery 22 is in the initial position, the dust removal mechanism 25 is in a position where it does not come into contact with the cleaning part 12, and the dust removal mechanism 25 does not interfere with the operation of the rotating cleaning body 10 while the rotating cleaning body 10 is rotating.

[0035] Dust removal mechanism 25 is made of a hard material such as metal or resin, and has a sharp shape with blade 25a that can cut dust entangled in rotating cleaning body 10. Bumper 21 and dust removal mechanism 25 are treated as separate parts, and are molded by insert molding or the like when molding bumper 21, and are integrated with bumper 21 as shown in FIG.

[0036] In addition to the above-described method, the dust removal mechanism 25 may be attached to the bumper portion 21 after molding, for example, by constructing the dust removal mechanism 25 as a separate part from the bumper portion 21 and attaching the dust removal mechanism 25 to the bumper portion 21 using adhesive.

[0037] When bumper 21 of suction body 6 is pressed against a wall or the like, bumper 21 deforms and dust removal mechanism 25 comes into contact with or penetrates cleaning part 12, cutting off dust, such as lint and hair, that has become entangled in cleaning part 12. The cut dust passes from suction port 7 through joint 8, extension tube 5, and hose 2 and is sucked into vacuum cleaner body 4, thereby keeping cleaning part 12 of rotating cleaning body 10 free from dust.

[0038] If dust is entangled in the cleaning part 12, it may be difficult for the cleaning part 12 to contact the surface to be cleaned, and the dust on the surface to be cleaned may not be able to be scraped up. Therefore, by keeping the cleaning part 12 of the rotating cleaning body 10 in a state where dust is not entangled, the efficiency of the cleaning work can be improved.

[0039] Thus, the vacuum cleaner of the first embodiment includes a suction port for sucking in dust, a rotary cleaning body that is rotatably positioned facing the suction port and that scrapes up dust from the surface to be cleaned, a suction body that includes a drive mechanism for rotating the rotary cleaning body and a bumper that extends in the direction of the rotational axis of the rotary cleaning body and is positioned opposite the rotary cleaning body and can move toward and away from the rotary cleaning body, and a vacuum cleaner body that includes an electric blower that generates negative pressure and is connected to the suction body, wherein the bumper is configured to include a dust removal mechanism having a blade that cuts dust adhering to the rotary cleaning body when the bumper moves toward the rotary cleaning body, and a protective part that is located near the dust removal mechanism to sandwich the dust removal mechanism and is formed higher than the upper end of the blade in the height direction from the bumper on the side facing the rotary cleaning body toward the rotary cleaning body, thereby efficiently removing dust adhering to the rotary cleaning body. Furthermore, a dust removal mechanism 25 that ensures safety can be provided.

[0040] Embodiment 2 Next, a second embodiment will be described. Fig. 16 is a perspective view of the lower case body of the vacuum cleaner according to the second embodiment of this disclosure, viewed from below. Fig. 17 is a side cross-sectional view of the suction body of the vacuum cleaner according to the second embodiment of this disclosure. Note that parts that are the same as or equivalent to those in the first embodiment will be given the same reference numerals, and descriptions thereof will be simplified or omitted.

[0041] In the second embodiment, the attachment positions of the dust removal mechanism 25 and the protective part 28 described in the first embodiment are changed. As shown in FIG. 17 , a dust removal mechanism 25 having a blade 25a that cuts off dust adhering to the rotary cleaning body 10 and a protective part 28 that is disposed near the dust removal mechanism 25 so as to sandwich the dust removal mechanism 25 and that is formed higher than the upper end of the blade 25a with the height direction extending away from the inner wall surface of the rotary cleaning body chamber 24a toward the rotary cleaning body 10 as the height direction, are attached to a rotary cleaning body chamber 24a that covers a part of the rotary cleaning body 10 at the front of the lower case body 24 provided in the suction body 6. Unlike the first embodiment, this configuration allows the dust removal mechanism 25 to be used without deforming the bumper part 21.

[0042] The lower case body 24 and the dust removal mechanism 25 can be treated as the same or separate parts. If they are treated as the same part, they are molded using the same material, such as ABS material, when molding the lower case body 24. Alternatively, they are molded into the lower case body 24 by insert molding. If they are treated as separate parts, they are attached using adhesive, double-sided tape, or the like after molding the lower case body 24.

[0043] Similarly, when attaching the protective part 28, it can be treated as either the same part or a separate part; if it is treated as the same part, it can be molded at the same time as the lower case body 24 is molded; if it is treated as a separate part, it can be formed using an adhesive or the like after the lower case body 24 is molded.

[0044] The dust removal mechanism 25 in the lower case body 24 comes into contact with or penetrates the cleaning part 12 and cuts off dust, such as lint and hair, that has become entangled in the cleaning part. The cut dust passes through the suction port 7, the joint part 8, the extension tube 5, and the hose 2 and is sucked into the vacuum cleaner body 4, keeping the rotating cleaning body 10 clean.

[0045] Thus, the vacuum cleaner of the second embodiment includes a suction port for sucking in dust, a rotary cleaning body rotatably disposed facing the suction port to scrape up dust from the surface to be cleaned, a suction body including a drive mechanism for rotating the rotary cleaning body and a case body, and a vacuum cleaner main body connected to the suction body and having an electric blower for generating negative pressure, wherein the case body includes a rotary cleaning body chamber that covers a portion of the rotary cleaning body, and the rotary cleaning body chamber includes a dust removal mechanism having a blade for cutting dust adhering to the rotary cleaning body, and protective parts that are disposed adjacent to the dust removal mechanism so as to sandwich the dust removal mechanism and are formed higher than the upper end of the blade in the height direction from the inner wall surface of the rotary cleaning body chamber toward the rotary cleaning body, thereby efficiently removing dust adhering to the rotary cleaning body. Furthermore, a dust removal mechanism that ensures safety can be provided. Furthermore, since the dust removal mechanism is mounted on a member that is less likely to deform, such as the rotary cleaning body chamber, durability can be increased, particularly when the dust removal mechanism and the protective part are configured separately from the base material on which they are mounted.Furthermore, the dust removal mechanism is configured to be less likely to come into contact with the user, ensuring greater safety. Embodiment 3

[0046] Next, a third embodiment will be described. Fig. 18 is a perspective view of an electric vacuum cleaner of a vacuum cleaner system according to the third embodiment of this disclosure attached to a desk lamp. Fig. 19 is a perspective view of an electric vacuum cleaner of a vacuum cleaner system according to the third embodiment of this disclosure. Fig. 20 is a perspective view of a desk lamp of a vacuum cleaner system according to the third embodiment of this disclosure. Fig. 21 is a perspective view showing an enlarged view of a main part of a desk lamp of a vacuum cleaner system according to the third embodiment of this disclosure. Note that parts that are the same as or equivalent to those of the first and second embodiments are given the same reference numerals, and descriptions thereof will be simplified and omitted. In the third embodiment, a dust removal mechanism is configured in the stand of the vacuum cleaner system.

[0047] The electric vacuum cleaner 1 is a stick-type electric vacuum cleaner. As shown in FIG. 19, the electric vacuum cleaner 1 comprises a vacuum cleaner body 4, a dust collection unit 9, a handle unit 3, an extension tube 5, an electric blower, a battery, and a suction body 6. The electric blower is housed inside the vacuum cleaner body 4. The electric blower generates negative pressure. When the suction body 6 is connected to the vacuum cleaner body 4, negative pressure is generated at the suction port (not shown) of the suction body 6, which sucks in air containing dust from the surface to be cleaned (dust-laden air). The battery serves as the power source for driving the electric blower. The battery is a rechargeable secondary battery.

[0048] The dust collection unit 9 captures dust, and separates the dust from the dust-laden air sucked in by the suction body 6 and collects the dust. In this embodiment, the dust collection unit 9 includes a cyclone separator. Alternatively, a dust collection unit may be provided that captures dust by filtering the airflow using a dust collection bag. The vacuum cleaner 1 includes an exhaust port 31, and the airflow from which the dust has been removed is discharged to the outside through the exhaust port 31. A user holds the vacuum cleaner 1 by gripping the handle 3.

[0049] Next, we will explain the desk lamp 29. The electric vacuum cleaner stand 29 is used to place the electric vacuum cleaner 1 in an upright position. As shown in Figure 20, the desk lamp 29 includes a base portion 32, a support portion 33, a placing portion 34, and an inclined portion 35.

[0050] The inclined portion 35 is inclined so as to gradually decrease in size as it moves away from the placement portion 34 . When the attracting body 6 is placed on the placing part 34 of the desk lamp 29 from a state where it is in contact with the floor surface, it is placed via the inclined part 35, so it is preferable that the inclined part 35 and the floor surface have a configuration as smooth as possible.

[0051] As shown in FIG. 18, when the vacuum cleaner 4 is placed on the desk lamp 29, the bottom surface of the suction body 6 that biases the vacuum cleaner comes into contact with the placement portion .

[0052] The mounting portion 34 is a mounting surface for the dust removal mechanism 25, and when the suction body 6 of the vacuum cleaner 4 is placed on the desk stand 29 and the bottom surface of the suction body 6 comes into contact with the mounting portion 34, the dust removal mechanism 25 comes into contact with or enters the cleaning part 12 of the rotating cleaning body 10 which is rotatably arranged facing the suction port 7 of the suction body 6. The mounting portion 34 is provided with the dust removal mechanism 25 having a blade part 25a which cuts off dust adhering to the rotating cleaning body 10.

[0053] As in the first and second embodiments, safety protection parts 28 are provided near dust removal mechanism 25 so as to sandwich dust removal mechanism 25 and are formed higher than the upper end of the blade part with their height direction extending upward from the upper surface of mounting part 34. This prevents fingers and the like from coming into contact with dust removal mechanism 25, ensuring safety.

[0054] The configuration of the dust removal mechanism 25 is the same as in the first and second embodiments, and if it is treated as the same component, it is molded into the mounting portion 34 by insert molding when the base portion 32 is molded. If it is treated as a separate component, it is attached to the mounting portion 34 using adhesive, double-sided tape, or the like after the base portion 32 has been molded.

[0055] When the electric vacuum cleaner 1 is placed on the desk lamp 29 and the dust removal mechanism 25 is inserted into the cleaning unit 12, the vacuum cleaner main body 4 and the suction body 6 are activated to cut and remove the dust entangled in the rotating cleaning body 10. The removed dust passes through the suction port 7 of the suction body 6, the joint 8, and the extension tube 5, is sucked into the vacuum cleaner main body 4, and is collected in the dust collection unit 9.

[0056] Thus, the vacuum cleaner system of the third embodiment includes a suction port for sucking in dust, a suction body rotatably arranged facing the suction port and including a rotary cleaning body for raking up dust from the surface to be cleaned and a drive mechanism for rotating the rotary cleaning body, and an electric blower for generating negative pressure, and a vacuum cleaner body connected to the suction body, and a desk stand having a base on which the suction body of the vacuum cleaner is placed, the base being configured to include a dust removal mechanism having a blade for cutting dust adhering to the rotary cleaning body, and protective parts disposed adjacent to the dust removal mechanism so as to sandwich the dust removal mechanism and formed higher than the upper end of the blade in the height direction away from the upper surface of the base, thereby efficiently removing dust adhering to the rotary cleaning body. Furthermore, a dust removal mechanism 25 that ensures safety can be provided.

[0057] Various aspects of the present disclosure are summarized below as appendices.

[0058] (Appendix 1) a suction body having a drive means for rotating the rotary cleaning body and a bumper portion extending in the direction of the rotational axis of the rotary cleaning body and arranged opposite the rotary cleaning body so as to be able to move forward and backward relative to the rotary cleaning body; and a vacuum cleaner body having an electric blower for generating negative pressure and connected to the suction body, wherein the bumper portion comprises a dust removal mechanism having a blade portion that cuts dust adhering to the rotary cleaning body when the bumper portion moves toward the rotary cleaning body, and a protective portion that is arranged near the dust removal mechanism so as to sandwich the dust removal mechanism and is formed higher than the upper end of the blade portion in the height direction from the bumper portion on the side facing the rotary cleaning body and away from the rotary cleaning body. (Appendix 2) 2. The vacuum cleaner according to claim 1, wherein the bumper portion is made of a soft material. (Appendix 3) an electric vacuum cleaner comprising: a suction port for sucking in dust; a rotary cleaning body that is rotatably arranged facing the suction port and that scrapes up dust from the surface to be cleaned; a drive means for rotating the rotary cleaning body; a suction body that has a case body; and a vacuum cleaner main body that has an electric blower that generates negative pressure and is connected to the suction body, wherein the case body comprises a rotary cleaning body chamber that covers part of the rotary cleaning body, and the rotary cleaning body chamber comprises a dust removal mechanism that has a blade portion that cuts dust adhered to the rotary cleaning body, and a protective portion that is arranged near the dust removal mechanism so as to sandwich the dust removal mechanism and is formed higher than the upper end of the blade portion, with the height direction being the direction away from the inner wall surface of the rotary cleaning body chamber toward the rotary cleaning body. (Appendix 4) The electric vacuum cleaner according to any one of claims 1 to 3, characterized in that the dust removal mechanism is arranged singly or in multiple locations in the area where the rotating cleaning body is located, and the protective part is arranged singly or in multiple locations depending on the location of the dust removal mechanism. (Appendix 5) 4. The electric vacuum cleaner according to claim 1, wherein the dust removal mechanism has a cross section perpendicular to the rotation axis direction of the rotary cleaning body that is linear, uneven, or arc-shaped. (Appendix 6) 4. The electric vacuum cleaner according to claim 1, wherein the dust removal mechanism is disposed in a direction perpendicular to or oblique to the rotation axis of the rotary cleaning body. (Appendix 7) a vacuum cleaner system comprising: an electric vacuum cleaner having a suction port for sucking in dust; a suction body that is rotatably arranged facing the suction port and that has a rotary cleaning body that rakes up dust from the surface to be cleaned and a drive means for rotating the rotary cleaning body; and an electric stand unit that has a base unit on which the suction body of the vacuum cleaner is placed, wherein the base unit has a dust removal mechanism that has a blade unit that cuts dust adhering to the rotary cleaning body, and a protective unit that is arranged near the dust removal mechanism so as to sandwich the dust removal mechanism and is formed higher than the upper end of the blade unit in the height direction that is away from the upper surface of the base unit. (Appendix 8) The vacuum cleaner system of claim 7, characterized in that the dust removal mechanism is arranged singly or in multiple locations in the area where the rotating cleaning body is located, and the protective part is arranged singly or in multiple locations depending on the location of the dust removal mechanism. (Appendix 9) 8. The vacuum cleaner system according to claim 7, wherein the dust removal mechanism has a cross section perpendicular to the rotation axis direction of the rotary cleaning body that is linear, uneven, or arc-shaped. (Appendix 10) 8. The vacuum cleaner system according to claim 7, wherein the dust removal mechanism is disposed in a direction perpendicular or oblique to the rotation axis of the rotary cleaning body. [Explanation of symbols]

[0059] 1 vacuum cleaner, 2 hoses, 3 Handle part, 4 vacuum cleaner body, 5 extension tube, 6 suction body, 7 suction port, 8 joint part, 9 dust collection section, 10 rotating cleaning body, 11 shaft portion, 12 Cleaning Department, 13 first conductive part, 14 First sheet metal section, 15 first pin receiving portion, 16 second conductive part; 17 Second Sheet Metal Department, 18 second pin receiving portion, 19 First pin part, 20 second pin part, 21 Bumper section, 22 Bumper outer periphery, 23 upper case body, 24 Lower case body, 24a Rotating cleaning body chamber, 25 Dust removal mechanism, 25a blade part, 26 Plane part, 27 wheels, 28 Department of Protection; 28a top surface; 29 Desk lamps, 30 cylindrical part, 31 exhaust vent, 32 pedestal, 33 Pillar section, 34 placing part, 35 Slope.

Claims

1. a suction body including a suction port for sucking in dust, a rotary cleaning body rotatably arranged facing the suction port and for scraping up dust from a surface to be cleaned, a driving means for rotating the rotary cleaning body, and a bumper part extending in the direction of the rotation axis of the rotary cleaning body, arranged opposite the rotary cleaning body, and capable of advancing and retreating relative to the rotary cleaning body; An electric vacuum cleaner comprising: a vacuum cleaner body having an electric blower that generates negative pressure and connected to the suction body; the bumper portion is a dust removal mechanism having blade portions facing perpendicular to the rotational axis direction of the rotary cleaning body, for cutting dust adhering to the rotary cleaning body when the front surface of the suction body comes into contact with and is pushed in toward the rotary cleaning body, and a protective portion is provided near the dust removal mechanism so as to sandwich the dust removal mechanism, and is formed higher than the upper end of the blade portions with the height direction being the direction away from the bumper portion on the side facing the rotary cleaning body toward the rotary cleaning body.

2. The vacuum cleaner according to claim 1, wherein the bumper portion is made of a soft material.

3. 3. The electric vacuum cleaner according to claim 1, wherein the dust removal mechanism is arranged singly or in multiple locations in the area where the rotary cleaning body is located, and the protective portion is arranged singly or in multiple locations depending on the location of the dust removal mechanism.

4. 3. The electric vacuum cleaner according to claim 1, wherein the dust removal mechanism has a cross section perpendicular to the rotation axis of the rotary cleaning body that is linear, uneven, or arc-shaped.

5. 3. The electric vacuum cleaner according to claim 1, wherein the dust removal mechanism is disposed in a direction perpendicular to or oblique to the rotation axis of the rotary cleaning body.

6. an electric vacuum cleaner comprising: a suction port for sucking in dust; a suction body that is rotatably arranged facing the suction port and that includes a rotary cleaning body that scrapes up dust from a surface to be cleaned and a drive means for rotating the rotary cleaning body; and a vacuum cleaner body that has an electric blower that generates negative pressure and is connected to the suction body; a desk stand having a mounting portion on which the suction body of the vacuum cleaner is mounted; A vacuum cleaner system comprising: The vacuum cleaner system is provided with a dust removal mechanism on the mounting section having blade portions facing each other perpendicular to the rotational axis direction of the rotary cleaning body for cutting dust adhering to the rotary cleaning body when the suction body of the vacuum cleaner is mounted thereon, and a protective portion that is arranged near the dust removal mechanism so as to sandwich the dust removal mechanism and is formed higher than the upper end of the blade portions with the height direction being the direction away from the upper surface of the mounting section.

7. The vacuum cleaner system of claim 6, wherein the dust removal mechanism is arranged singly or in multiple locations in the area where the rotating cleaning body is located, and the protective portion is arranged singly or in multiple locations depending on the location of the dust removal mechanism.

8. 7. The vacuum cleaner system according to claim 6, wherein the dust removal mechanism has a cross section perpendicular to the rotation axis direction of the rotary cleaning body that is linear, uneven, or arc-shaped.

9. 7. The vacuum cleaner system according to claim 6, wherein the dust removal mechanism is disposed in a direction perpendicular or oblique to the rotation axis of the rotary cleaning body.

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