Suction port body and vacuum cleaner

Abstract

To provide a suction port body to which a cleaning sheet can be easily attached, and that can reliably hold the attached cleaning sheet during cleaning operation, and a vacuum cleaner comprising the same.SOLUTION: A suction port body 1 comprises: a suction port 100; a sheet support part 102 for bringing a cleaning sheet 2 into contact with a part to be cleaned; and a sheet attachment part 105 located in an upper part, and to which the cleaning sheet 2 is attached. The sheet support part 102 is longitudinal in a left-right direction. The suction port 100 is close to a front part of the sheet support part 102 along the longitudinal direction of the sheet support part 102 in a lower part. The sheet attachment part 105 holds portions folded upward from both left and right side parts of the sheet support part 102 in the cleaning sheet 2 covering a portion of a lower part of the sheet support part 102.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] Embodiments of the present invention relate to a suction port body to which a cleaning sheet can be attached and used, and a vacuum cleaner including the same.

Background Art

[0002] Conventionally, in a suction port body of a vacuum cleaner, there is known one that holds a cleaning sheet such as a non-woven fabric and simultaneously performs suction cleaning and wiping cleaning on a portion to be cleaned such as a floor surface. In order to securely hold the cleaning sheet so that it does not curl or come off when wiping the portion to be cleaned, the terminal portion thereof is attached to the suction port body by pushing it into a sheet attachment portion composed of a plurality of tongue pieces or the like. When the sheet attachment portion comes into contact with the portion to be cleaned, there is a concern that the holding of the cleaning sheet may be released and the cleaning sheet may curl. Therefore, the sheet attachment portion is disposed above the main body portion of the suction port body, and the terminal portion of the cleaning sheet wound around the main body portion is folded back from both front and rear end portions of the main body portion to the upper portion of the main body portion and held by the sheet attachment portion. At this time, if the suction port is located at the front portion of the suction port body, the suction port may be covered by the cleaning sheet. Therefore, a nozzle portion including the suction port and an air passage portion connected thereto is formed separately. When winding the cleaning sheet, it is necessary to perform complicated operations such as retracting the nozzle portion once, then winding the cleaning sheet and holding it by the sheet attachment portion, and then returning the nozzle portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] The problem to be solved by the present invention is to provide a suction port body that can easily attach a cleaning sheet and can surely hold the attached cleaning sheet during the cleaning operation, and a vacuum cleaner equipped with the same.

Means for Solving the Problem

[0005] The suction port body of the embodiment includes a suction port, a sheet support portion for bringing the cleaning sheet into contact with the portion to be cleaned, and a sheet attachment portion located at the upper part for attaching the cleaning sheet. The sheet support portion is longitudinally long in the left-right direction. The suction port is close to the front portion of the sheet support portion along the longitudinal direction of the sheet support portion at the lower part. The sheet attachment portion holds the portions of the cleaning sheet folded upward from both left and right sides of the sheet support portion that cover a part of the lower part of the sheet support portion.

Brief Description of the Drawings

[0006]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0007] Hereinafter, one embodiment will be described with reference to the drawings.

[0008] In FIGS. 1 to 4, reference numeral 1 denotes a suction port body. The suction port body 1 sweeps a surface to be cleaned F such as a floor. In the present embodiment, a separate cleaning sheet 2 can be attached to the suction port body 1, and in a state where the cleaning sheet 2 is attached, the user moves the suction port body 1 on the surface to be cleaned F, so that suction cleaning and wiping cleaning can be performed simultaneously. That is, the suction port body 1 is a cleaning attachment capable of performing suction cleaning and wiping cleaning. Hereinafter, with reference to a state where the suction port body 1 is placed and used on a horizontal surface to be cleaned F, the vertically upward and downward direction is defined as the up-and-down direction, the direction away from the user is defined as the front direction, the direction approaching the user is defined as the rear direction, and the left-and-right direction is defined when viewed from the front. In the drawings, the arrow FR direction is the front direction, the arrow RR direction is the rear direction, the arrow U direction is the up direction, the arrow D direction is the down direction, the arrow L direction is the left direction, and the arrow R direction is the right direction.

[0009] The suction port body 1 includes a main body portion 10 and a connecting pipe 11. The main body portion 10 is elongated in the left-and-right direction, which is the lateral direction. That is, the main body portion 10 has a horizontally long shape.

[0010] The main body part 10 has a suction inlet 100 for suction cleaning. The suction inlet 100 is located at the front part of the main body part 10. In the illustrated example, the suction inlet 100 is located at least at the front end or the foremost part of the main body part 10. That is, the suction inlet 100 is located at least on the front surface of the main body part 10. In the present embodiment, the suction inlet 100 is open from the front end part to the lower part of the main body part 10. In the illustrated example, the suction inlet 100 is open from the front surface to the lower surface of the main body part 10. The suction inlet 100 is longitudinally shaped along the longitudinal direction of the main body part 10. That is, the suction inlet 100 is longitudinally shaped in the left - right direction. Also, the left - right dimension of the suction inlet 100 is set to be considerably larger than the front - rear dimension. That is, the suction inlet 100 has an elongated horizontally long shape. The suction inlet 100 extends continuously between the left and right side parts of the main body part 10. The left side part of the suction inlet 100 is located at the left side part of the lower part of the main body part 10, and the right side part of the suction inlet 100 is located at the right side part of the lower part of the main body part 10. In the present embodiment, the suction inlet 100 is located corresponding to substantially the entire width of the main body part 10. That is, the left - right dimension of the suction inlet 100 is set to be substantially equal to the left - right dimension of the main body part 10. Hereinafter, "substantially" shall include the meanings of "completely" and "substantially".

[0011] The suction inlet 100 communicates with an air passage part 101. The air passage part 101 is formed inside the main body part 10 above the suction inlet 100. The air passage part 101 communicates the suction inlet 100 with the front end part which is the upstream end part of the connecting pipe 11 located behind it. The air passage part 101 is formed in a non - bent shape that inclines rearward and upward from the front end part of the suction inlet 100 toward the downstream side. "Non - bent shape" includes a straight line shape, or a gentle curved shape formed without a bent part at an angle of 90 degrees or less. In the present embodiment, the air passage part 101 is in a straight line shape from the front end part of the suction inlet 100 toward the front end part of the connecting pipe 11.

[0012] In addition, the main body 10 has a sheet support portion 102 for wiping and cleaning. The sheet support portion 102 is a portion for bringing the cleaning sheet 2 into contact with the portion to be cleaned F by the self-weight of the suction port body 1 or the main body 10, or the pressing force from above by the user. Preferably, it is a portion for pressing and closely attaching the cleaning sheet 2 to the portion to be cleaned F. That is, the sheet support portion 102 is a portion for sandwiching the cleaning sheet 2 between it and the portion to be cleaned F. The sheet support portion 102 is located behind the suction port 100. In this embodiment, it is located near the rear end portion of the suction port 100 at the lower part of the main body 10. In the illustrated example, the sheet support portion 102 is close to the rear end portion of the suction port 100 along the longitudinal direction of the suction port 100 at the lower part of the main body 10. In this embodiment, the sheet support portion 102 is adjacent to the rear end portion of the suction port 100. Hereinafter, "adjacent" shall include not only the state of being adjacent without a gap but also the state of being adjacent with a slight gap.

[0013] At least a part of the sheet support portion 102 forms the entire portion extending across the rear end portion of the main body 10 behind the suction port 100 at the lower part of the main body 10. For example, it extends substantially across the entire width of the front end portion of the sheet support portion 102 and faces the suction port 100. The sheet support portion 102 and the suction port 100 have substantially equal left and right dimensions, and the central portions in the left and right directions substantially coincide.

[0014] Preferably, the sheet support portion 102 has a sheet holding portion 1020 for detachable attachment of the cleaning sheet 2. The sheet holding portion 1020 is preferably a member that can hold the cleaning sheet 2 lightly to such an extent that the cleaning sheet 2 can be easily removed. For example, the sheet holding portion 1020 is a member that can adhesively hold the cleaning sheet 2, and a hook member of a surface fastener that holds the cleaning sheet 2 by hooking the fibers constituting the cleaning sheet 2 is preferably used. Not limited to this, as the sheet holding portion 1020, a hook member made of synthetic resin or the like integrally formed with the main body 10 may be used, or a reusable adhesive member, such as an adhesive pad, may be used.

[0015] The sheet holding part 1020 is arranged at least partially behind or on the side of the suction port 100 in the lower part and / or the upper part of the main body part 10. In the present embodiment, the sheet holding part 1020 is arranged behind the suction port 100. In the illustrated example, the sheet holding part 1020 is longitudinally long in the left-right direction, and a plurality of them are set in the front-rear direction. For example, the sheet holding part 1020 has a front part sheet holding part 10200 located on the front side and a rear part sheet holding part 10201 located on the rear side. Not limited to this, the sheet holding part 1020 may extend in the front-rear direction, for example, or may be scattered at a plurality of locations.

[0016] In the present embodiment, the front part sheet holding part 10200 is along the longitudinal direction of the suction port 100 at the lower part of the main body part 10 and is close to the rear part of the suction port 100. A plurality of front part sheet holding parts 10200 are set on the left and right, and each is adjacent to the rear end part of the suction port 100. For example, a pair of front part sheet holding parts 10200 are set on the left and right and are separated from each other in the left-right direction. In the illustrated example, the left side part of the left front part sheet holding part 10200 is located at the left side part of the lower part of the main body part 10 and is arranged in the front-rear direction with the left side part of the suction port 100, and the right side part of the front part sheet holding part 10200 is located at the right side part of the lower part of the right main body part 10 and is arranged in the front-rear direction with the right side part of the suction port 100. Also, each front part sheet holding part 10200 is longitudinally long in the left-right direction and is in the shape of a strip with a substantially constant width, and is arranged substantially parallel to the suction port 100. Not limited to this, each front part sheet holding part 10200 may be divided into a plurality in the front-rear and / or left-right directions.

[0017] The rear sheet holding portion 10201 is located rearward and apart from the front sheet holding portion 10200. The rear sheet holding portion 10201 may be at the lower part of the main body portion 10, may be at the upper part, or may be at both the upper and lower parts respectively. In the illustrated example, the rear sheet holding portion 10201 is arranged along the rear end portion of the upper part of the main body portion 10. The rear sheet holding portion 10201 is in a strip shape that is longitudinally long in the left-right direction and has a substantially constant width, and is arranged continuously in the left-right direction across from the left side portion to the right side portion of the main body portion 10. That is, the left side portion of the rear sheet holding portion 10201 is located at the left side portion of the upper part of the main body portion 10, and the right side portion of the rear sheet holding portion 10201 is located at the right side portion of the upper part of the main body portion 10. Not limited to this, the rear sheet holding portion 10201 may be divided into a plurality in the front-rear and / or left-right directions.

[0018] In the present embodiment, the sheet holding portion 1020 is arranged in the holding portion mounting portion 103 recessed in the main body portion 10, and is substantially flush with the lower surface or the upper surface of the main body portion 10.

[0019] Also, the sheet support portion 102 has a pressing portion 1021 for making it possible to abut against the portion to be cleaned F without holding the cleaning sheet 2. The pressing portion 1021 constitutes a portion other than the sheet holding portion 1020 in the sheet support portion 102. For example, the pressing portion 1021 constitutes an area wider than the sheet holding portion 1020 in the sheet support portion 102. In the present embodiment, the pressing portion 1021 substantially occupies the entire portion excluding the front sheet holding portion 10200 at the lower part of the main body portion 10. That is, the pressing portion 1021 forms a portion extending from the rear end portion of the front sheet holding portion 10200 to the rear end portion of the main body portion 10 at the lower part of the main body portion 10. The pressing portion 1021 is in a strip shape that is longitudinally long in the left-right direction and has a substantially constant width, and is positioned substantially parallel to the suction port 100 and the sheet holding portion 1020 or the front sheet holding portion 10200. Also, the pressing portion 1021 is located continuously across between the left and right side portions of the main body portion 10. That is, the left side portion of the pressing portion 1021 is located at the left side portion of the lower part of the main body portion 10, and the right side portion of the pressing portion 1021 is located at the right side portion of the lower part of the main body portion 10.

[0020] For example, the pressing part 1021 is formed into a substantially flat plate shape by a soft material such as an elastomer or urethane. Note that the pressing part 1021 may be divided into a plurality of parts in the front-rear direction and / or left-right direction.

[0021] In the present embodiment, the pressing part 1021 is attached to a pressing part attachment part 104 recessed in the lower part of the main body part 10, and is substantially flush with the lower part of the main body part 10.

[0022] Also, on the upper part of the main body part 10, a sheet attachment part 105 for attaching and holding the cleaning sheet 2 is formed. The sheet attachment part 105 enables the cleaning sheet 2 to be attached and detached. The sheet attachment part 105 holds a sheet support part 102 of the cleaning sheet 2 that covers at least a part of the lower part of the sheet support part 102 or a folded-back part 20 that is folded upward from both left and right sides of the main body part 10. The sheet attachment part 105 is located behind the front sheet holding part 10200 and in front of the rear sheet holding part 10201 in the front-rear direction. The sheet attachment part 105 is arranged on the upper part of the main body part 10 or the suction port body 1. In the present embodiment, the sheet attachment parts 105 are arranged, for example, close to both left and right sides of the upper part of the main body part 10. In the illustrated example, the sheet attachment parts 105 are set in a plurality, for example, two side by side in the front-rear direction on each of the left and right sides of the upper part of the main body part 10. These sheet attachment parts 105 are located at a distance from each other in the front-rear direction.

[0023] The sheet attachment part 105 may have any configuration as long as it can attach and hold the cleaning sheet 2. In the present embodiment, for example, it is configured to be divided into a plurality of tongue-shaped holding pieces 1051 by slits 1050. Then, by pushing a part of the folded-back part 20 of the cleaning sheet 2 into the slit 1050 and sandwiching it by the holding pieces 1051, the sheet attachment part 105 is configured to hold the folded-back part 20.

[0024] In this embodiment, the sheet attachment portion 105 is formed of a soft material. For example, the sheet attachment portion 105 is formed of the same material as the pressing portion 1021 of the sheet support portion 102. The sheet attachment portion 105 may be integrally formed with the sheet support portion 102 or may be separately formed. In this way, by making the sheet attachment portion 105 and the pressing portion 1021 of the same material, it becomes possible to mold the sheet attachment portion 105 and the sheet support portion 102 in the same process at once by two-color molding or double molding, etc., and the manufacturability is improved.

[0025] Note that, as the sheet attachment portion 105, a member capable of adhering and holding the cleaning sheet 2, for example, a hook member of a hook-and-loop fastener that holds the cleaning sheet 2 by hooking the fibers constituting the cleaning sheet 2 may be used.

[0026] Preferably, a suction hole 106 for sucking and holding the cleaning sheet 2 is opened at the lower part of the main body portion 10. For example, the suction hole 106 is located behind the suction port 100. In this embodiment, the suction hole 106 is located in the sheet support portion 102. The suction hole 106 is located forward with respect to the sheet attachment portion 105. The suction hole 106 is set to be single or plural. For example, the suction hole 106 is provided between a plurality of sheet holding portions 1020. In this embodiment, one suction hole 106 is set at the center in the left-right direction at the lower part of the main body portion 10. In the illustrated example, the suction hole 106 is arranged between the left and right front sheet holding portions 10200. That is, the suction hole 106 and the front sheet holding portion 10200 of the sheet holding portion 1020 are arranged side by side in the left-right direction, that is, the longitudinal direction of the suction port 100. Therefore, the suction hole 106 is located forward with respect to the center in the front-rear direction of the main body portion 10. In this embodiment, the suction hole 106 is located away from the left and right front sheet holding portions 10200 in the left-right direction, respectively.

[0027] The suction hole 106 communicates with a suction source 4 (shown in FIG. 7) described later. In the present embodiment, the suction hole 105 communicates with the air passage portion 101 and communicates with the suction source 4 (shown in FIG. 7) via the air passage portion 101. For example, the suction hole 106 is formed by penetrating the rear surface of the air passage portion 101. The suction hole 106 is formed in a longitudinal shape in the left-right direction. The suction hole 106 has a smaller opening area than the suction port 100. For example, the suction hole 106 is opened in a slit shape with smaller left-right dimensions and front-rear dimensions than the suction port 100.

[0028] And preferably, in the state of use of the suction port body 1, as the holding force for holding the cleaning sheet 2 on the suction port body 1, the front side is set stronger than the rear side. In the present embodiment, the holding force on the front side is the sum of the adhesion holding force by the front sheet holding portion 10200 and the suction holding force by the suction hole 106, while the holding force on the rear side is only the adhesion holding force by the rear sheet holding portion 10201, so that the holding force on the front side is set stronger than the holding force on the rear side.

[0029] The main body portion 10 is divided into a plurality of case members. In the present embodiment, the main body portion 10 has a lower case 107 which is one case member, and an upper case 108 which is another case member that covers a part above the lower case 107. The lower case 107 and the upper case 108 may each be further divided into a plurality of members.

[0030] The lower case 107 constitutes a part of the suction port 100 and a part of the air passage portion 101. The lower case 107 is formed of, for example, a hard synthetic resin or the like. Also, the lower case 107 constitutes the majority of the lower part of the main body portion 10. In the present embodiment, the front sheet holding portion 10200 and the pressing portion 1021 of the sheet holding portion 102 of the sheet support portion 102 are formed at the lower part of the lower case 107, and the sheet attachment portion 105 and the rear sheet holding portion 10201 of the sheet holding portion 102 are formed at the upper part. In the illustrated example, the lower case 107 is formed in a longitudinal shape in the left-right direction.

[0031] The lower case 107 has its front part forming the rear part of the air duct part 101, and its middle part to rear part being integrated with the seat support part 102 and the seat mounting part 105. For example, a through hole 1070 penetrating in the vertical direction is formed in the lower case 107. Through the through hole 1070, the upper part and the lower part of the lower case 107 communicate with each other. For example, the pressing part 1021 of the seat support part 102 and the seat mounting part 105 can be integrally formed. That is, the lower case 107, the pressing part 1021 and the seat mounting part 105 can be integrally formed by two-color molding or double molding.

[0032] The upper case 108 constitutes the remaining other parts of the suction port 100 and the remaining other parts of the air duct part 101. The upper case 108 is formed of, for example, a hard synthetic resin or the like. The upper case 108 covers the upper part of the front part of the lower case 107 and is fixed to the upper part of the lower case 107. In the present embodiment, the upper case 108 is formed in a longitudinal shape in the left-right direction.

[0033] A connecting pipe 11 is rotatably connected to the central part in the left-right direction of the lower case 107 and the central part in the left-right direction of the upper case 108.

[0034] The connecting pipe 11 is a connecting part that communicates the suction port 100 and the suction hole 106 with a suction source 4 (shown in FIG. 7) to be described later via the air duct part 101. Preferably, the connecting pipe 11 is rotatably connected to the main body part 10. In the present embodiment, the connecting pipe 11 has a plurality of shaft parts whose rotation axis directions intersect each other, and the angle with respect to the main body part 10 can be changed in any direction. In the illustrated example, the connecting pipe 11 is composed of a first pipe part 110 which is an upstream pipe part rotatable in the axial direction and a second pipe part 111 which is a downstream pipe part having a rotation axis in a direction orthogonal to the rotation axis of the first pipe part 110, and they are connected in communication.

[0035] The cleaning sheet 2 is a soft sheet such as a square shape formed of, for example, a non-woven fabric or cloth, and may be a dedicated one or a general-purpose commercially available product. The cleaning sheet 2 preferably has a size or area that at least covers the sheet support portion 102 of the suction port body 1. For example, the cleaning sheet 2 is formed in a square shape having a left-right dimension larger than the left-right dimension of the sheet support portion 102 and capable of forming the folded-back portion 20, and a front-back dimension equal to or larger than the front-back dimension of the sheet support portion 102. The cleaning sheet 2 may be used in a state where it is appropriately folded or in a state where it is multiply folded according to the size of the sheet support portion 102, or may be used in a state of a single sheet without being folded. The cleaning sheet 2 may be a dry type or a wet type in which a cleaning liquid for the portion to be cleaned F such as water or a chemical solution has penetrated.

[0036] Then, as shown in FIG. 7, the suction port body 1 is used in the vacuum cleaner CL. In the present embodiment, the suction port body 1 is applied to a suction-type vacuum cleaner CL that sucks dust together with air into the separation unit 5 by the negative pressure generated by the drive of a suction source 4 such as an electric blower disposed in the cleaner main body 3 of the vacuum cleaner CL. The vacuum cleaner CL may be of any type, such as a floor-running type, a canister type, a stick type, an upright type, or a handy type. In the present embodiment, the vacuum cleaner CL will be described by taking a stick-type vacuum cleaner as an example. Also, in the illustrated example, the suction port body 1 is mechanically and fluidly connected to the extension pipe 6, which is a pipe portion, or the cleaner main body 3 via a connection pipe 11. By connecting the connection pipe 11, the air passage portion 101 and the suction port 100 of the suction port body 1, and further the suction holes 106 (each shown in FIG. 3) in the present embodiment are fluidly communicated with the suction source 4 via the separation unit 5, respectively. Further, in the present embodiment, the operation or on / off or switching of the suction force of the suction source 4 is set by the user by operating the switch 8 of the hand operation unit 7 for gripping operation. In the cleaner main body 3, a main body control unit 9 that operates the suction source 4 according to the operation set by the switch 8 is disposed. The power supply unit B of the vacuum cleaner CL is disposed in the cleaner main body 3, for example. In the present embodiment, the power supply unit B is a battery or a secondary battery, but is not limited thereto, and may be a cord reel device that obtains power from an external power source such as a commercial power supply.

[0037] Next, the cleaning operation of one embodiment will be described.

[0038] First, the suction port body 1 is connected to the extension pipe 6 or the cleaner main body 3 by the connection pipe 11 so that the user can perform a cleaning operation via the hand operation unit 7.

[0039] Next, align the front end portion of the cleaning sheet 2 within the width in the front-rear direction of the suction port 100 of the suction port body 1, and attach it to the sheet holding portion 1020. As an example, as shown in FIG. 5, place the cleaning sheet 2 on a flat installation position such as the portion to be cleaned, and align the front end portion of the cleaning sheet 2 within the width in the front-rear direction of the suction port 100 of the suction port body 1. At this time, if the axis of the second pipe portion 111 of the connection pipe 11 is configured to be behind the center of gravity of the main body portion 10 of the suction port body 1, the front portion of the main body portion 10 rotates downward due to its own weight, and the front portion of the main body portion 10 inclines so as to approach the cleaning sheet 2. Thus, alignment between the suction port 100 at the front portion of the main body portion 10 and the front end portion of the cleaning sheet 2 becomes easy.

[0040] Then, as shown in FIG. 6, press the suction port body 1 against the cleaning sheet 2 from above, that is, sandwich the cleaning sheet 2 between the suction port body 1 and the installation position, thereby attaching and holding the cleaning sheet 2 to the sheet holding portion 1020. In the present embodiment, the front portion of the cleaning sheet 2 is attached and held by the front sheet holding portion 10200 (shown in FIG. 3). Note that the method of attaching the cleaning sheet 2 is not limited to placing the cleaning sheet 2 on the installation position and pressing the suction port body 1 from above. For example, the suction port body 1 may be placed on the installation position with the lower portion facing upward, and the cleaning sheet 2 with the front end portion aligned within the width in the front-rear direction of the suction port 100 may be pressed against the sheet holding portion 1020 to attach the cleaning sheet 2. That is, the sheet holding portion 1020 and the cleaning sheet 2 may be aligned with each other in the front-rear and left-right directions, and either one may be pressed against the other for attachment.

[0041] In this state, the left and right side portions of the cleaning sheet 2 protrude laterally beyond the left and right side portions of the main body portion 10 of the suction port body 1. Further, as shown in FIG. 1, a part of the folded-back portion 20 that is folded upward so as to wrap the portions protruding from the left and right side portions of the main body portion 10 of the suction port body 1 is pushed into the slit 1050 of the sheet attachment portion 105 and held by the holding pieces 1051 respectively, and the rear portion of the folded-back portion 20 is adhered and held to the rear sheet holding portion 10201. When a large surplus portion occurs at the rear end portion of the cleaning sheet 2, at the upper portion of the main body portion 10, the surplus portion can be extended forward of the rear sheet holding portion 10201 and below the connecting pipe 11, for example, to a position below the first pipe portion 110. For example, by inserting the end portion of the cleaning sheet 2 into the narrow gap between the lower portion of the first pipe portion 110 and the upper portion of the lower case 107 of the main body portion 10, the holding force of the cleaning sheet 2 can be further improved. By configuring in this way, the cleaning sheet 2 can be easily attached to the suction port body 1. That is, since the suction port 100 is located at the front portion of the suction port body 1, although it is difficult to wrap the front end portion of the cleaning sheet 2 around the upper portion of the main body portion 10, the folded-back portion 20 is wrapped around the upper portion from the left and right side portions of the main body portion 10 or the sheet support portion 102 that does not have a structure that hinders the wrapping of the cleaning sheet 2, and is held by the sheet attachment portion 105 located at the upper portion, so that the cleaning sheet 2 can be easily attached without requiring a complicated structure or a cumbersome operation.

[0042] In this state, by operating the suction source 4 (shown in FIG. 7) by operating the switch 8, the front end portion of the cleaning sheet 2 is suction-held to the suction port 100 by the negative pressure acting from the suction port 100. The front end portion of the cleaning sheet 2 adsorbed to the suction port 100 covers, for example, the lower end portion of the rear surface of the air passage portion 102. Also, the intermediate portion in the front-rear direction of the cleaning sheet 2 is suction-held by the negative pressure acting from the suction holes 106.

[0043] Then, the user moves the suction port body 1 back and forth on the portion to be cleaned F shown in FIG. 3 by the hand operation portion 7 shown in FIG. 7, sucks dust from the suction port 100, and wipes and cleans the portion to be cleaned F with the held cleaning sheet 2.

[0044] The cleaning sheet 2 is brought into contact with the area to be cleaned F by the self-weight of the suction port body 1 or the main body 10 and / or the pressing force applied by the user from the hand operation unit 7 via the sheet holding portion 1020 and the pressing portion 1021 of the sheet support portion 102. As a result, it is difficult for dust to enter between the cleaning sheet 2 and the lower part of the suction port body 1, and the area to be cleaned F can be wiped and cleaned stably over a wide area. Further, both left and right side portions of the cleaning sheet 2 are folded back to the upper part of the main body 10 and held by the sheet attachment portions 105 respectively, the front and rear portions of the cleaning sheet 2 are held by the sheet holding portion 1020, the front end portion of the cleaning sheet 2 is suction-held by the suction port 100, and is suction-held by the suction holes 106. Therefore, while the suction source 4 is operating, that is, during the cleaning operation, the cleaning sheet 2 is firmly and reliably held by the suction port body 1. In particular, since the user applies a greater force when advancing the suction port body 1 than when retracting it, the holding force of the cleaning sheet 2 on the front side of the suction port body 1 is stronger than the holding force of the cleaning sheet 2 on the rear side in the used state of the suction port body 1. As a result, the cleaning sheet 2 is less likely to be rolled up particularly when the suction port body 1 advances. Further, since the front end portion of the cleaning sheet 2 is suction-held inside the suction port 100, when the suction port body 1 is moved back and forth on the area to be cleaned F, the front end portion of the cleaning sheet 2 is less likely to directly receive a resistance force from the area to be cleaned F, and it is possible to prevent the cleaning sheet 2 from being rolled up starting from the front end portion. In particular, even when the cleaning sheet 2 is wet or a general-purpose one, the cleaning sheet 2 can be reliably held. Therefore, even when the suction port body 1 is moved back and forth on the area to be cleaned F, the cleaning sheet 2 is less likely to be rolled up due to the resistance force with the area to be cleaned F. Further, since the suction holes 106 are located at the center in the left-right direction of the main body 10 of the suction port body 1, it is possible to hold the cleaning sheet 2 in a well-balanced manner.

[0045] In addition, since the suction port 100 is open from the front surface to the lower surface of the main body portion 10 of the suction port body 1, when the suction port body 1 is advanced on the surface to be cleaned F, even coarse dust such as cat litter or rice grains on the surface to be cleaned F can be sucked in without being pushed forward. Even when the front portion of the main body portion 10 of the suction port body 1 is brought into contact with the wall surface, the suction air passage can be secured, and dust along the wall can be sucked without being pinched between the suction port body 1 and the wall surface. Further, since cleaning is performed while moving the suction port body 1 back and forth on the surface to be cleaned F, although dust such as hair and coarse dust tends to concentrate and adhere to the front end portion of the cleaning sheet 2, the suction port 100 is longitudinally long in the left-right direction, and along the longitudinal direction of the suction port 100, the sheet support portion 102, in this embodiment, the front sheet holding portion 10200 of the sheet holding portion 1020 is close to the rear portion of the suction port 100. Therefore, dust adhering to the front end portion of the cleaning sheet 2 close to the rear portion of the suction port 100 can also be sucked in, suppressing the progress of dirt on the front end portion of the cleaning sheet 2 over time and keeping this front end portion clean. Further, since the suction port 100 is formed corresponding to substantially the entire width of the sheet support portion 102 for bringing the cleaning sheet 2 into contact with the surface to be cleaned F, dust adhesion can be suppressed over substantially the entire width of the cleaning sheet 2. Thus, the front end portion of the cleaning sheet 2 maintained in a clean state can always wipe and clean up to the surface to be cleaned F along the wall. Also, before the rear portion of the cleaning sheet 2 is fully utilized, it becomes unnecessary to replace the cleaning sheet 2 due to dirt on the front end portion, enabling the entire cleaning sheet 2 to be effectively utilized and suppressing the replacement frequency of the cleaning sheet 2. Therefore, the number of replacement operations can be reduced, and wasteful use of resources can be suppressed. Further, even if the dust adhering to the front end portion of the cleaning sheet 2 peels off from the cleaning sheet 2 when the suction port body 1 is retracted, it is immediately sucked in from the suction port 100, making it difficult to leave dust on the surface to be cleaned F.

[0046] The dust sucked in from the suction port 100 is sucked into the connecting pipe 11 by the negative pressure of the suction source 4 acting on the air passage portion 101. At this time, since the air passage portion 101 communicating the suction port 100 and the front end portion of the connecting pipe 11 is formed in a non-bent shape, even relatively heavy dust can be smoothly sucked into the connecting pipe 11 without generating a strong negative pressure at the suction port 100 as compared with the case where there is a portion that sucks the dust upward. In addition, the suction of the suction port body 1 to the portion to be cleaned F due to the negative pressure of the suction port 100 is suppressed, so that the operability of the suction port body 1 on the portion to be cleaned F becomes lighter and the operability becomes good. The sucked dust is sucked from the connecting pipe 11 into the separation portion 5 and separated and collected from the air.

[0047] When removing the dirty cleaning sheet 2 from the suction port body 1, when the user operates the switch 8 to stop the operation of the suction source 4, the negative pressure acting from the suction port 100 and the suction holes 106 disappears. As a result, the cleaning sheet 2 is in a state where the folded portion 20 is sandwiched between the sheet attachment portion 105 at the upper part of the main body portion 10 and is lightly attached and held by the rear sheet holding portion 10201, and is only lightly attached and held by the front sheet holding portion 10200 at the lower part of the main body portion 10. Therefore, by removing the folded portion 20 of the cleaning sheet 2 located at the upper part of the main body portion 10, that is, not in contact with the portion to be cleaned F, from the sheet attachment portion 105 and removing it from the rear sheet holding portion 10201 and the front sheet holding portion 10200 starting from this folded portion 20, the cleaning sheet 2 can be easily and hygienically removed from the suction port body 1.

[0048] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention to these embodiments. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and its equivalent scope.

Explanation of Reference Numerals

[0049] CL Electric vacuum cleaner F Part to be cleaned 1 Suction inlet body 2 Cleaning sheet 100 Suction inlet 102 Sheet support part 105 Sheet mounting part 106 Suction hole 107 Lower case which is a case member 1021 Pressing part 1050 Slit

Claims

1. A suction port, a sheet support portion for bringing a cleaning sheet into contact with a portion to be cleaned, and a sheet mounting portion located at an upper portion for mounting the cleaning sheet, and the sheet support portion is longitudinally long in the left-right direction, the suction port is close to the front portion of the sheet support portion along the longitudinal direction of the sheet support portion at a lower portion, the sheet mounting portion holds portions of the cleaning sheet folded upward from both left and right side portions of the sheet support portion that cover a part of the lower portion of the sheet support portion characterizing the suction port body.

2. comprising a case member in which the sheet support portion is disposed, the sheet support portion has a pressing portion formed of a material softer than the case member at a lower portion, the sheet mounting portion includes a slit for holding at least a part of the inserted cleaning sheet and is formed of the soft material characterizing the suction port body according to Claim 1.

3. being provided with a suction hole located at the front portion of the sheet support portion and communicating with a suction source characterizing the suction port body according to Claim 1.

4. the sheet mounting portion is a hook-and-loop fastener characterizing the suction port body according to Claim 1.

5. comprising the suction port body according to any one of Claims 1 to 4 characterizing the vacuum cleaner.

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