Method for attaching cleaning sheet to suction port body, suction port body, and electric vacuum cleaner

Abstract

To provide a method for attaching a cleaning sheet to a suction port body, a suction port body, and an electric vacuum cleaner that can reduce portions unusable for cleaning in the cleaning sheet.SOLUTION: In a method for attaching a cleaning sheet, a suction port body 1 includes a suction port 100 and a sheet support part 102 for bringing a cleaning sheet 2 into contact with a cleaning object part F. The sheet support part 102 has a sheet holding portion 1020 at least a portion of which is arranged on the rear side of the suction port 100 at the lower part thereof, and to which the cleaning sheet 2 can be detachably attached. At least one sheet piece 21 is attached to the sheet holding portion 1020 such that another sheet piece 21 is positioned between the sheet support part 102 and the one sheet piece 21 located on the side of the cleaning object part F in a state where the cleaning sheet 2 is folded to form the plurality of sheet pieces 21 in the vertical direction.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] Embodiments of the present invention relate to a method for attaching a cleaning sheet to a suction inlet body, the suction inlet body, and a vacuum cleaner, where the cleaning sheet is attached to the suction inlet body.

Background Art

[0002] Conventionally, in the suction inlet 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. The cleaning sheet is wound around the main body of the suction inlet body, and its front end and rear end are folded back from the front and rear parts of the main body and held by a holding part located above the main body, so that many parts that cannot be used for cleaning are generated.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

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 method for attaching a cleaning sheet to a suction inlet body, the suction inlet body, and a vacuum cleaner that can reduce the parts of the cleaning sheet that cannot be used for cleaning.

Means for Solving the Problems

[0005] The cleaning sheet attachment method for the suction port body of the embodiment is a cleaning sheet attachment method for attaching a cleaning sheet to the suction port body. The cleaning sheet attachment method is such that the suction port body includes a suction port and a sheet support portion for bringing the cleaning sheet into contact with the portion to be cleaned. The sheet support portion has a sheet holding portion that is at least partially disposed behind the suction port at the lower part and to which the cleaning sheet can be attached and detached. With the cleaning sheet folded to form a plurality of sheet pieces vertically, at least one sheet piece is attached to the sheet holding portion so that another sheet piece is positioned between one sheet piece located on the side of the portion to be cleaned and the sheet support portion.

Brief Description of the Drawings

[0006]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Modes for Carrying Out the Invention

[0007] Hereinafter, an 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, which is a surface to be cleaned. In the present embodiment, a separate cleaning sheet 2 can be attached to the suction port body 1. With the cleaning sheet 2 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 carried out simultaneously. That is, the suction port body 1 is a cleaning attachment capable of performing suction cleaning and wiping cleaning. Hereinafter, based on the 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-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-right direction, which is the bilateral direction. That is, the main body portion 10 has a horizontally long shape.

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

[0011] The suction port 100 communicates with an air passage portion 101. The air passage portion 101 is formed inside the main body portion 10 above the suction port 100. The air passage portion 101 communicates the suction port 100 with a front end portion which is an upstream end portion of a connection pipe 11 located behind it. The air passage portion 101 is a chamber portion or a duct portion, and is opened by the suction port 100 from the lower front side to the lower portion.

[0012] The air passage portion 101 is formed in a non-bent shape that slopes rearward and upward from the front end portion of the suction port 100 toward the downstream side. Particularly, at the central portion in the left-right direction, which is the position facing the front end portion of the connecting pipe 11, it is formed in a non-bent shape so as to slope rearward and upward from the front end portion of the suction port 100 toward the front end portion of the connecting pipe 11. The "non-bent shape" includes a straight line shape or a gentle curved shape formed without a portion that bends at an angle of 90 degrees or less. In the present embodiment, the air passage portion 101 is in a straight line shape from the front end portion of the suction port 100 toward the front end portion of the connecting pipe 11.

[0013] The rear portion of the air passage portion 101 is a guide surface 1012. The guide surface 1012 has its lower portion forming the rear end portion of the suction port 100 and rises in an inclined manner toward the rear upper side. The guide surface 1012 is substantially flat without unevenness and guides the dust sucked from the suction port 100 to the connecting pipe 11. Preferably, the guide surface 1012 is formed in a flat shape or a curved surface shape. For example, the inclination angle of the guide surface 1012 with respect to the horizontal plane or the inclination angle of the tangent plane of the guide surface 1012 is set to 45° or less.

[0014] Also, the main body portion 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 weight of the suction port body 1 or the main body portion 10, or by the pressure applied from above by the user. Preferably, it is a portion for pressing and adhering 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 the present embodiment, it is located near the rear end portion of the suction port 100 at the lower portion of the main body portion 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 portion of the main body portion 10. In the present 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.

[0015] At least a part of the sheet support portion 102 forms the entire portion extending across the rear end portion of the main body portion 10 behind the suction port 100 at the lower part of the main body portion 10. For example, the suction port 100 is positioned to face substantially across the entire width of the front end portion of the sheet support portion 102. The sheet support portion 102 and the suction port 100 have substantially equal left - right dimensions and the central portions in the left - right direction substantially coincide with each other.

[0016] In the present embodiment, the sheet support portion 102 has a sheet holding portion 1020 for removably attaching and detaching the cleaning sheet 2. The sheet holding portion 1020 is preferably a member that can hold the cleaning sheet 2 lightly to the 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 catching 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 portion 10 may be used, or a reusable adhesive member, such as an adhesive pad, may be used.

[0017] At least a part of the sheet holding portion 1020 is disposed behind the suction port 100 at the lower part and / or the upper part of the main body portion 10. In the illustrated example, the sheet holding portion 1020 has a plurality of holding portions in the front - rear direction. For example, the sheet holding portion 1020 has a front - part sheet holding portion 10200 which is one holding portion and a rear - part sheet holding portion 10201 which is the other holding portion.

[0018] In this embodiment, the front sheet holding portion 10200 is along the longitudinal direction of the suction port 100 and is close to the rear portion of the suction port 100. A plurality of front sheet holding portions 10200 are set on the left and right, and each is adjacent to the rear end portion of the suction port 100. For example, a pair of front sheet holding portions 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 portion of the left front sheet holding portion 10200 is located at the left side portion of the lower portion of the main body portion 10 and is arranged in the front-rear direction with the left side portion of the suction port 100, and the right side portion of the front sheet holding portion 10200 is located at the right side portion of the lower portion of the right main body portion 10 and is arranged in the front-rear direction with the right side portion of the suction port 100. Also, each front sheet holding portion 10200 is in a strip shape that is longitudinally long in the left-right direction and has a substantially constant width, and is arranged substantially parallel to the suction port 100. Not limited to this, each front sheet holding portion 10200 may be divided into a plurality in the front-rear and / or left-right directions.

[0019] The rear sheet holding portion 10201 is located at a distance from the front sheet holding portion 10200 in the front-rear direction. For example, the rear sheet holding portion 10201 is arranged along the rear end portion of the lower portion 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 lower portion 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 lower portion 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.

[0020] Note that if the sheet holding portion 1020 has a plurality of holding portions in the front-rear direction, it may not be divided into a plurality. For example, the sheet holding portion 1020 may be formed in an integral square frame shape or the like in which both side portions of the portion along the rear edge portion of the suction port 100 and the portion along the rear end portion of the lower portion of the main body portion 10 are connected in the front-rear direction. Not limited to the square frame shape, it may also be an elliptical ring shape or an oval ring shape having a major axis in the left and right both side directions.

[0021] Further, the sheet support portion 102 has a pressing portion 1021 for enabling it to contact the portion to be cleaned F without holding the cleaning sheet 2. The pressing portion 1021 constitutes a portion of the sheet support portion 102 other than the sheet holding portion 1020. 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 whole area between the front sheet holding portion 10200 and the rear sheet holding portion 10201 at the lower part of the main body portion 10. That is, the pressing portion 1021 is positioned adjacent to the rear end portion of the front sheet holding portion 10200 and the front end portion of the rear sheet holding portion 10201. The pressing portion 1021 is longitudinally long in the left-right direction and has a substantially constant width in a strip shape, and is positioned substantially parallel to the suction port 100 and the sheet holding portion 1020. Further, the pressing portion 1021 extends continuously 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 positioned 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 positioned at the right side portion of the lower part of the main body portion 10.

[0022] For example, the pressing portion 1021 is formed in a substantially flat plate shape by a soft material such as an elastomer or urethane. Note that the pressing portion 1021 may be divided into a plurality of parts in the front-rear and / or left-right directions. Further, the pressing portion 1021 does not have to be soft.

[0023] Preferably, one or more suction holes 105 for sucking and holding the cleaning sheet 2 are formed in the lower part of the main body 10. For example, the suction holes 105 are located behind the suction port 100. In the present embodiment, the suction holes 105 are located in the sheet support portion 102. The suction holes 105 are provided singly or in plurality. For example, the suction holes 105 are provided between a plurality of sheet holding portions 1020. In the present embodiment, one suction hole 105 is provided at the center in the left-right direction at the lower part of the main body 10. In the illustrated example, the suction hole 105 is arranged between the left and right front sheet holding portions 10200. That is, the suction hole 105 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, in the longitudinal direction of the suction port 100. Therefore, the suction hole 105 is located forward with respect to the center in the front-rear direction of the main body 10. In the present embodiment, the suction holes 105 are located at a distance from the left and right front sheet holding portions 10200 in the left-right direction respectively.

[0024] The suction hole 105 communicates with a suction source 4 (shown in FIG. 9) 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. 9) via the air passage portion 101. For example, the suction hole 105 is formed by penetrating the guide surface 1012 of the air passage portion 101. The suction hole 105 is formed in a longitudinal shape in the left-right direction. The suction hole 105 has a smaller opening area than the suction port 100. For example, the suction hole 105 is opened in a slit shape with smaller left-right dimensions and front-rear dimensions than the suction port 100.

[0025] And preferably, in the use state of the suction port body 1, as the holding force for holding the cleaning sheet 2 to 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 105, 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.

[0026] The connecting pipe 11 is a connecting part that communicates the suction port 100 and the suction hole 105 with a suction source 4 (shown in FIG. 9) described later via the air passage 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, for example, a plurality of shaft parts whose rotational axis directions intersect each other, and can change the angle with respect to the main body part 10 in an arbitrary direction.

[0027] 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 covers at least the sheet support part 102 of the suction port body 1. For example, the cleaning sheet 2 is formed in a square shape having a left-right dimension equal to or greater than the left-right dimension of the sheet support part 102 and a front-rear dimension approximately twice or more the front-rear dimension of the sheet support part 102. Preferably, the left-right dimension of the cleaning sheet 2 is set larger than the left-right dimension of the main body part 10 of the suction port body 1. In the present embodiment, the cleaning sheet 2 is used in a state where it is appropriately folded or stacked multiple times according to the size of the sheet support part 102. In the illustrated example, the cleaning sheet 2 is in a folded state where it is folded from the folding part 20 which is a fold line part, and a plurality of sheet pieces 21 are stacked one above the other, and among these sheet pieces 21, at least the sheet piece 21 located at the lowermost part on the side of the part to be cleaned F and the sheet support part 102 hold the other sheet pieces 21 and are attached to the suction port body 1 for use. The method of attaching the cleaning sheet 2 to the suction port body 1 will be described later.

[0028] For example, in the present embodiment, the cleaning sheet 2 is formed as a sheet piece portion 21 with a first piece portion 210 and a second piece portion 211, that is, it is used as a double-folded sheet, and these first piece portion 210 and second piece portion 211 are used in a state of being held by the sheet holding portion 1020. In the example shown in FIG. 1(a), the cleaning sheet 2 is attached to the suction port body 1 with the folding portion 20 on the rear side, but as in the example shown in FIG. 1(b), it may be attached to the suction port body 1 with the folding portion 20 on the front side, regardless of whether the folding portion 20 is in the front or rear. Also, in the illustrated example, the first piece portion 210 is on the lower side located on the side of the portion to be cleaned F, and the second piece portion 211 is on the upper side located at the lower part of the sheet support portion 102, showing a use state of cleaning the portion to be cleaned F with the first piece portion 210. However, depending on the degree of dirt, the cleaning sheet 2 can be turned inside out or upside down, and the second piece portion 211 can be held by the sheet holding portion 1020 in the same manner as the first piece portion 210 in FIGS. 1(a) and 1(b), and can be used in a state of cleaning with the second piece portion 211. The cleaning sheet 2 may be a dry type or a wet type in which a liquid for cleaning the portion to be cleaned F such as water or a chemical solution has penetrated.

[0029] Then, as shown in FIG. 9, the suction inlet body 1 is used in the vacuum cleaner CL. In the present embodiment, the suction inlet 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 inlet 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 inlet 100 of the suction inlet body 1, and in this embodiment, further the suction holes 105 (each shown in FIG. 3) are fluidly communicated with the suction source 4 via the separation unit 5, respectively. Further, in the present embodiment, the operation or on / off and switching of the suction force of the suction source 4 are 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, for example, in the cleaner main body 3. 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.

[0030] Next, the cleaning operation of one embodiment will be described.

[0031] First, the suction inlet 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. Then, the cleaning sheet 2 is attached and used. In the present embodiment, a large cleaning sheet 2 having dimensions larger than those of the suction inlet body 1 in the front-rear, left-right directions is folded and used.

[0032] As a method for attaching the cleaning sheet 2 to the suction port body 1, any method may be used as long as the cleaning sheet 2 can be folded in the front-rear direction and attached so as to hold a state in which a plurality of sheet pieces 21 overlap vertically below the sheet support portion 102. Generally speaking, there are preferably used a first attachment method in which the cleaning sheet 2 is folded in advance and then attached to the suction port body 1, and a second attachment method in which the cleaning sheet 2 is folded while being attached to the suction port body 1.

[0033] The first attachment method will be described. In the first attachment method, the sheet holding portion 1020 and the pre-folded cleaning sheet 2 are aligned in the front-rear and left-right directions with respect to each other, and one of them is pressed against the other and attached.

[0034] As an example, a method of pressing and attaching the cleaning sheet 2 to the suction port body 1 is shown. As shown in FIG. 5, first, the suction port body 1 is placed on a placement portion or the like so that the lower portion of the main body portion 10 faces upward. Next, the cleaning sheet 2 is folded. At this time, the folded cleaning sheet 2 has a state in which the front end of one sheet piece 21, which becomes the lower part in the use state, in this embodiment, the front end of the first sheet piece 210, is shifted forward with respect to the front end of the other sheet piece 21, which becomes the upper part in the use state, in this embodiment, the second sheet piece 211. Further, the folded cleaning sheet 2 is aligned with the suction port body 1 in the front-rear and left-right directions.

[0035] In aligning the suction port body 1 and the cleaning sheet 2, in the front-rear direction, the suction port 100 of the suction port body 1 is aligned with the front end of the cleaning sheet 2, which is the front end of the first sheet portion 210 in this embodiment. For example, the front edge of the first sheet portion 210 of the cleaning sheet 2 is aligned along the trailing edge of the suction port 100 of the suction port body 1. The front edge of the first sheet portion 210 may be in a position close to the rear of the trailing edge of the suction port 100 as long as it overlaps with the front sheet holding portion 10200 of the sheet holding portion 1020, or a part of it may be in a position overlapping the vertical projection of the suction port 100 with the front edge exceeding the trailing edge of the suction port 100 forward. Also, preferably, the front edge of the second sheet portion 211 is positioned behind the suction hole 105. In the left-right direction, preferably, the central portions of the left and right sides of the suction port body 1 are aligned with the central portions of the left and right sides of the cleaning sheet 2. For example, when the left and right dimensions of the main body portion 10 of the suction port body 1 are substantially equal to the left and right dimensions of the cleaning sheet 2, by aligning either one of the left and right sides of the main body portion 10 of the suction port body 1 with either one of the left and right sides of the cleaning sheet 2, the central portions of the left and right sides of the suction port body 1 and the central portions of the left and right sides of the cleaning sheet 2 are aligned, making it easier to align the suction port body 1 and the cleaning sheet 2 in the left-right direction.

[0036] Then, the second sheet portion 211 of the cleaning sheet 2 is opposed to the sheet support portion 102 of the suction port body 1, and as shown by the arrow, by pressing the cleaning sheet 2 against the suction port body 1, the front end of the first sheet portion 210 is attached to the front sheet holding portion 10200 of the sheet holding portion 1020, and the second sheet portion 211, that is, the rear end portion of the second sheet portion 211, is attached to the rear sheet holding portion 10201 of the sheet holding portion 1020 at the folding portion 20 side, that is, in the vicinity of the folding portion 20. In this way, at least the plurality of sheet piece portions 21 including the lower sheet piece portions 21, in this embodiment, the first sheet portion 210 and the second sheet portion 211 are attached to the suction port body 1 in a state where they are respectively attached and held by the sheet holding portion 1020 so that the cleaning sheet 2 is in a state of being folded in the front-rear direction from the folding portion 20 and the plurality of sheet piece portions 21 overlap vertically at the lower part of the sheet support portion 102.

[0037] In this example, since the suction port body 1 and the cleaning sheet 2 are aligned while directly visually observing the suction port 100 and the front end of the first sheet portion 210 of the cleaning sheet 2, the alignment of the suction port body 1 and the cleaning sheet 2 in the front-back, left-right directions becomes easier and more accurate.

[0038] Also, as another example, a method of pressing and attaching the suction port body 1 to the cleaning sheet 2 is shown. As shown in FIG. 6(a), the folded cleaning sheet 2 is placed on a flat placement portion such as the portion F to be cleaned in advance. In the illustrated example, one sheet portion 21, the first sheet portion 210 in this embodiment, is placed on the lower side, and the other sheet portion 21, the second sheet portion 211 in this embodiment, is placed on the upper side on the placement portion. Also, the cleaning sheet 2 is placed on the placement portion with the folding portion 20 on the rear side. At this time, the cleaning sheet 2 is in a state where the front end of the first sheet portion 210 is shifted forward with respect to the front end of the second sheet portion 211.

[0039] Next, the suction port body 1 and the cleaning sheet 2 are aligned in the front-back, left-right directions in the same manner as in the above one example. At this time, if the rotation axis along the left-right direction of the connecting 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. Therefore, the alignment between the suction port 100 at the front portion of the main body portion 10 and the front end of the cleaning sheet 2 becomes easy. Also, if the left-right dimension of the cleaning sheet 2 is larger than the left-right dimension of the main body portion 10, when the main body portion 10 is overlapped above the cleaning sheet 2, both left and right side portions of the cleaning sheet 2 protrude to the left and right sides of the main body portion 10. Thus, the user can align the front portion of the main body portion 10 and the front end of the cleaning sheet 2 while seeing this protruding portion, and the alignment becomes easier. In this state, the second sheet portion 211 of the cleaning sheet 2 faces the lower portion of the suction port body 1.

[0040] Then, as shown in FIG. 6(b), the suction port body 1 is pressed against the cleaning sheet 2 from above, that is, the cleaning sheet 2 is sandwiched between the suction port body 1 and the placement portion, and thus, in the same manner as in the above one example, the cleaning sheet 2 is attached to the sheet holding portion 1020.

[0041] In this example, since the suction port body 1 is attached with the cleaning sheet 2 while the lower part is facing downward in the usage state, the workability is good, and the user has less chance of touching the cleaning sheet 2, so the work can be done more hygienically.

[0042] In the first attachment method, the front end portion of the second piece portion 211 does not necessarily have to be attached to the front sheet holding portion 10200 of the sheet holding portion 1020. Preferably, the front end portion of the second piece portion 211 is also attached to the front sheet holding portion 10200 of the sheet holding portion 1020 in the same manner as the front end portion of the first piece portion 210. In this embodiment, the front end portion of the first piece portion 210 is adhered and held near the front of the front sheet holding portion 10200, and the front end portion of the second piece portion 211 is adhered and held to the front sheet holding portion 10200 at a position behind the front end portion of the first piece portion 210. In this way, also, the folding portion 20 may be in a position overlapping and facing the rear sheet holding portion 10201, or may be in a position behind the rear sheet holding portion 10201 in the front-rear direction.

[0043] Next, the second attachment method will be described. In the second attachment method, the sheet holding portion 1020 of the suction port body 1 and the unfolded cleaning sheet 2 are aligned in the front-rear and left-right directions with each other, and after one of them is pressed against the other and attached, the cleaning sheet 2 is folded, and further, the end portion of the cleaning sheet 2 is attached to the sheet holding portion 1020.

[0044] As an example, a method of pressing and attaching the cleaning sheet 2 to the suction port body 1 is shown. As shown in Fig. 7(a), first, the suction port body 1 is placed on a placement portion or the like so that the lower part of the main body portion 10 faces upward. Next, in aligning the cleaning sheet 2 in the unfolded state with the suction port body 1 in the front-rear and left-right directions, in the front-rear direction, the rear part of the front sheet holding portion 10200 of the sheet holding portion 1020 of the suction port body 1 and the front end portion of the cleaning sheet 2 are aligned. For example, the front edge of the cleaning sheet 2 is aligned along the portion behind the center in the front-rear direction of the front sheet holding portion 10200 of the sheet holding portion 1020 of the suction port body 1. Note that the "rear part of the front sheet holding portion 10200" means a position behind the front edge of the front sheet holding portion 10200 and is not limited to the portion behind the center in the front-rear direction of the front sheet holding portion 10200. That is, in aligning the suction port body 1 and the cleaning sheet 2 in the front-rear direction of the second attachment method, it is important to leave a part of the front sheet holding portion 10200 in front of the front end portion of the cleaning sheet 2. In the left-right direction, alignment is performed in the same manner as in the first attachment method.

[0045] Then, the front end portion of the cleaning sheet 2 is pressed against the rear part of the front sheet holding portion 10200 of the sheet holding portion 1020, and the vicinity of the center in the front-rear direction of the cleaning sheet 2 is pressed against the rear sheet holding portion 10201 to attach the cleaning sheet 2 to the suction port body 1. In this state, the rear part of the cleaning sheet 2 extends rearward from the rear sheet holding portion 10201.

[0046] Next, as shown in FIG. 7(b), fold the rear portion of the cleaning sheet 2 extending rearward from the rear sheet holding portion 10201 forward, and attach the other end of the cleaning sheet 2, that is, the end of the cleaning sheet 2 that has become the front end by folding, to the front portion of the front sheet holding portion 10200. In this way, at least the plurality of sheet piece portions 21 including the lower sheet piece portion 21, in this embodiment, the first piece portion 210 and the second piece portion 211 are attached to the suction port body 1 in a state where they are respectively attached and held to the sheet holding portion 1020 so that the cleaning sheet 2 is folded in the front-rear direction from the folding portion 20 and the plurality of sheet piece portions 21 overlap vertically at the lower part of the sheet support portion 102.

[0047] In this example, since the suction port body 1 and the cleaning sheet 2 are aligned while directly visualizing the suction port 100 and the cleaning sheet 2, the alignment of the suction port body 1 and the cleaning sheet 2 in the front-rear, left-right directions becomes easier and more accurate.

[0048] Also, as another example, as shown in FIG. 8(a), place the cleaning sheet 2 in a non-folded state on a flat placement portion such as the portion F to be cleaned. Next, align the suction port body 1 with respect to the cleaning sheet 2 in the front-rear, left-right directions in the same manner as in one example.

[0049] Then, as shown in FIG. 8(b), 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 placement portion, thereby attaching the cleaning sheet 2 to the front sheet holding portion 10200 and the rear sheet holding portion 10201 of the sheet holding portion 1020.

[0050] Next, as shown in FIG. 8(c), when the suction port body 1 is lifted from the placement part, the rear part of the cleaning sheet 2 hangs down from the position behind the rear sheet holding part 10201 to the placement part. Therefore, by lowering the suction port body 1 onto the placement part while pulling it backward, the cleaning sheet 2 can be folded using the weight of the suction port body 1, and the other end of the cleaning sheet 2, that is, the end of the cleaning sheet 2 that has become the front end by folding the cleaning sheet 2, is attached to the front part of the front sheet holding part 10200 of the sheet holding part 1020 of the suction port body 1.

[0051] In this example, since the cleaning sheet 2 is attached while the suction port body 1 remains in the use state with the lower part facing downward, the workability is good, and when folding the cleaning sheet 2, there is no need for the user to touch the cleaning sheet 2, and the opportunity for the user to touch the cleaning sheet 2 is further reduced, so the work can be done more hygienically.

[0052] In the present embodiment, since at least a part of the sheet holding part 1020 capable of attaching and holding the cleaning sheet 2 is arranged behind the suction port 100 at the lower part of the suction port body 1, the cleaning sheet 2 can be easily attached to the suction port body 1.

[0053] In the figure, for clarity of description, a gap is shown between the first piece part 210 and the second piece part 211, but in the actual use state, the first piece part 210 and the second piece part 211 are substantially overlapped without a gap vertically.

[0054] Also, the above first and second attachment methods are shown for the example of attaching the cleaning sheet 2 to the suction port body 1 with the folding part 20 of the cleaning sheet 2 on the rear side, but it is not limited to this. As shown in FIG. 1(b), the folding part 20 of the cleaning sheet 2 may be attached to the suction port body 1 on the front side. In this case, in each step of the above attachment methods, it can be attached in the same way by reversing the front-rear direction.

[0055] Then, with the cleaning sheet 2 attached to the suction port body 1, by operating the switch 8 to activate the suction source 4 (shown in FIG. 9), at least the first sheet portion 210 of the cleaning sheet 2 is adsorbed and held by the negative pressure acting from the suction holes 105. When a part of the front end portion of the first sheet portion 210 of the cleaning sheet 2 overlaps with the suction port 100, the front end portion of the first sheet portion 210 is adsorbed and 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 guide surface 1012.

[0056] Then, the user moves the suction port body 1 back and forth on the portion to be cleaned F shown in FIG. 1(a) etc. by the hand operation unit 7 shown in FIG. 9, sucks dust from the suction port 100, and wipes and cleans the portion to be cleaned F with the held cleaning sheet 2.

[0057] The cleaning sheet 2 attached to the suction port body 1 by the first and second attachment methods is basically located only at the lower part of the suction port body 1, and no terminal portion is located at the upper part etc. of the suction port body 1. Therefore, the lower sheet piece portion 21, in this embodiment, the entire first sheet portion 210 can be brought into close contact with the portion to be cleaned F. As a result, the portion of the cleaning sheet 2 that cannot be used for cleaning can be reduced, and the entire area of the cleaning sheet 2 can be used without waste.

[0058] With the suction port body 1 placed on the area F to be cleaned, the cleaning sheet 2 is brought into contact with the area F to be cleaned 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-operated part 7 via the sheet holding part 1020 and the pressing part 1021 of the sheet support part 102. As a result, dust hardly enters between the cleaning sheet 2 and the lower part of the suction port body 1, and the area F to be cleaned can be wiped and cleaned stably over a wide area. Further, the front part and the rear part of the cleaning sheet 2 are held by the sheet holding part 1020, the front end part of the first piece part 210 at the front end of the cleaning sheet 2 is adsorbed and held by the suction port 100, and the first piece part 210 is adsorbed and held by the suction holes 105. Therefore, while the suction source 4 is operating, the cleaning sheet 2 is firmly held by the suction port body 1. In particular, since the user applies a greater force when moving the suction port body 1 forward than when moving it backward, the holding force for holding the cleaning sheet 2 on the front side of the suction port body 1 is stronger than the holding force for holding the cleaning sheet 2 on the rear side in the usage state of the suction port body 1. Thus, the cleaning sheet 2 is less likely to be curled especially when the suction port body 1 moves forward. In the present embodiment, since the suction holes 105 are arranged between the sheet holding parts 1020 in the left-right direction, the cleaning sheet 2 can be firmly held by the addition of the adsorption holding by the suction holes 105 even without strengthening the adhesion holding by the sheet holding parts 1020. In particular, the cleaning sheet 2 can be surely held even when the cleaning sheet 2 is a wet type or a general-purpose type. Therefore, even when the suction port body 1 is moved back and forth on the area F to be cleaned, the cleaning sheet 2 is less likely to be curled due to the resistance force with the area F to be cleaned. Further, since the suction holes 105 are located at the center in the left-right direction of the main body 10 of the suction port body 1, it becomes possible to hold the cleaning sheet 2 in a well-balanced manner.

[0059] 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 if 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 at the wall edge 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 sheet holding portion 1020, and in the illustrated example, the front sheet holding portion 10200 are 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 at the wall edge. Also, before the rear portion of the cleaning sheet 2 is fully utilized, it is no longer necessary to replace the cleaning sheet 2 due to dirt on the front end portion, enabling effective use of the cleaning sheet 2 and suppressing the frequency of replacement 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 is peeled 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.

[0060] The dust sucked in from the suction port 100 is guided along the guide surface 1012 by the negative pressure of the suction source 4 acting on the air passage portion 101 and sucked into the connecting pipe 11. The sucked dust is sucked from the connecting pipe 11 into the separation portion 5 and separated and collected from the air.

[0061] Also, by folding and using the cleaning sheet 2, only the lower sheet piece portion 21 facing the portion to be cleaned F, in the illustrated example, only the first piece portion 210 is used for cleaning, and the second piece portion 211 can be held at a position where it does not contact the portion to be cleaned F. Moreover, even when the suction port body 1 is lifted from the portion to be cleaned F when moving the suction port body 1 during cleaning, etc., the lower sheet piece portion 21 of the cleaning sheet 2 is held at the lower part of the suction port body 1 without opening so as to sag. Therefore, the second piece portion 211 can be surely held at a position where it does not contact the portion to be cleaned F. Thus, since the second piece portion 211 becomes an unused portion that does not get dirty during cleaning, when the first piece portion 210 gets dirty, the cleaning sheet 2 is once removed from the suction port body 1, turned over, and attached to the suction port body 1 again in the same manner. As a result, the clean portion of the cleaning sheet 2 can be newly used for cleaning, and by further turning the front and back sides and using it, the entire large area of the cleaning sheet 2 can be used without leaving any excess.

[0062] When removing the 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 105 disappears, and the cleaning sheet 2 is in a state where it is only slightly adhered and held by the sheet holding portion 1020. Therefore, the cleaning sheet 2 can be easily removed from the sheet holding portion 1020. When removing it, since it is not necessary to apply a large force to the cleaning sheet 2, the dust attached to the cleaning sheet 2 is not easily peeled off. Also, when the suction holes 105 are arranged between the sheet holding portions 1020, when the negative pressure acting on the suction holes 105 disappears, a portion where the lower sheet piece portion 21 of the cleaning sheet 2, in the illustrated example, the first piece portion 210 is not held by the suction port body 1 occurs between the sheet holding portions 1020 where the suction holes 105 are located. Therefore, the cleaning sheet 2 can be easily removed from the suction port body 1 starting from this portion.

[0063] In addition, in one embodiment, the cleaning sheet 2 is shown as being folded in half, but it is not limited to this, and it may be used in a folded state having three or more sheet portions 21. Even in that case, by attaching the cleaning sheet 2 to the suction port body 1 so that the remaining other sheet portions 21 are positioned between the lowermost sheet portion 21 located on the side of the portion to be cleaned F and the sheet support portion 102, it becomes possible to use the cleaning sheet 2 in the same manner as in the example where the cleaning sheet 2 is folded in half.

[0064] Although some embodiments of the present invention have been described, these embodiments are presented as examples and it is 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 the equivalent scope thereof.

Explanation of Reference Numerals

[0065] CL Vacuum cleaner F Portion to be cleaned 1 Suction port body 2 Cleaning sheet 4 Suction source 20 Folding portion 21 Sheet portion 100 Suction port 102 Sheet support portion 105 Suction hole 1020 Sheet holding portion 10200 Front sheet holding portion which is one holding portion 10201 Rear sheet holding portion which is the other holding portion

Claims

1. A method for attaching a cleaning sheet to a suction port body, the method comprising attaching the cleaning sheet to the suction port body, wherein the suction port body includes a suction port and a sheet support portion for bringing the cleaning sheet into contact with a portion to be cleaned, and the sheet support portion has a sheet holding portion disposed at least partially behind the suction port at a lower portion thereof and configured to removably hold the cleaning sheet, wherein at least one of the sheet pieces is mounted on the sheet holding portion such that, in a state where the cleaning sheet is folded to form a plurality of sheet pieces stacked vertically, another one of the sheet pieces is positioned between one of the sheet pieces located on the side of the portion to be cleaned and the sheet support portion, characterized in that it is a method for attaching a cleaning sheet to a suction port body.

2. The method for attaching a cleaning sheet to a suction port body according to claim 1, characterized in that the cleaning sheet is folded, an end portion of one of the sheet pieces is aligned with the suction port, and the cleaning sheet is mounted on the sheet holding portion.

3. The method for attaching a cleaning sheet to a suction port body according to claim 1, characterized in that the cleaning sheet is mounted on the sheet holding portion in a state where an end portion of one of the sheet pieces is displaced forward with respect to an end portion of another one of the sheet pieces.

4. The method for attaching a cleaning sheet to a suction port body according to claim 2, characterized in that front end portions of one and another of the sheet pieces are respectively mounted on the sheet holding portion.

5. The method for attaching a cleaning sheet to a suction port body according to claim 1, characterized in that the suction port of the suction port body is longitudinally long in a left-right direction, and the sheet holding portion of the suction port body is close to a rear portion of the suction port along the longitudinal direction of the suction port body.

6. The method for attaching a cleaning sheet to a suction port body according to claim 1, characterized in that the suction port of the suction port body is formed corresponding to substantially the entire width of the sheet support portion.

7. The method for attaching a cleaning sheet to a suction port body according to claim 1, characterized in that the suction port of the suction port body is longitudinally long in a left-right direction, and the sheet holding portion of the suction port body is close to a rear portion of the suction port along the longitudinal direction of the suction port at a lower portion thereof.

8. The method for attaching a cleaning sheet to a suction port body according to claim 1, characterized in that the sheet holding portion of the suction port body includes one holding portion and another holding portion provided front and rear, wherein a front end portion of one of the sheet pieces of the folded cleaning sheet is aligned with the suction port and mounted on the one holding portion, and a folded portion side of the cleaning sheet is mounted on the another holding portion. ​ ​ ​ ​ ​ ​ The method for attaching a cleaning sheet to the suction port body according to claim 1, characterized in that...

9. The sheet holding portion of the suction port body includes one holding portion and another holding portion in the front-rear direction. Align the rear portion of the one holding portion with one end of the cleaning sheet placed on the placement portion, press the suction port body onto the cleaning sheet, and attach the cleaning sheet to the one holding portion and the other holding portion. Lift the suction port body from the placement portion, pull it backward while lowering it back to the placement portion, and fold the cleaning sheet while attaching the other end of the cleaning sheet to the one holding portion. The method for attaching a cleaning sheet to the suction port body according to claim 1, characterized in that...

10. The suction port body communicates with a suction source and has a suction hole that opens at the lower part. In the cleaning sheet, position one sheet piece portion located on the side of the portion to be cleaned at a position corresponding to the suction hole. The method for attaching a cleaning sheet to the suction port body according to claim 1, characterized in that...

11. A suction port, A sheet support portion for bringing the cleaning sheet into contact with the portion to be cleaned, and The sheet support portion has a sheet holding portion at least partially arranged behind the suction port at the lower part and is detachable for the cleaning sheet. The cleaning sheet is in a state of being folded into a plurality of sheet piece portions vertically, and with other sheet piece portions located between one sheet piece portion located on the side of the portion to be cleaned and the sheet support portion, at least one sheet piece portion is attached to the sheet holding portion. A suction port body, characterized in that...

12. Comprising a suction port body used in the method for attaching a cleaning sheet according to any one of claims 1 to 10. A vacuum cleaner, characterized in that...

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