JP2000217755A - Electric cleaner and suction port body therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric cleaner and a suction port body therefor with which a cleaning style can be varied and a configuration for feeding power to a driving means is simplified. SOLUTION: A communicating pipe part 52 is formed by providing a communication turning part 54 expanded in the shape of trumpet at one end of an almost cylindrical part 53 bending at the one end side. A communicating pipe 50 is constituted by providing a joint part 51 with which a rotary shaft 63 coaxially provided on the communication turning part 54 is supported so as to vertically move the other end side of the communicating pipe part 52. The joint part 51 is equipped with a cylindrical part 68 freely rotatably fitted to a connecting pipe part communicated to the suction chamber of a case body, and the communicating pipe 50 is supported so as to be freely turned selectively at the positions of axial direction along with longitudinal direction and with lengthwise direction. A ring-shaped contact 77 for a connection to a lead wire 80 arranged on the communicating pipe 50 in contact with a terminal part, which is provided on the outer peripheral surface of the connecting pipe part while being connected to the electric motor of the case body, is provided on the inner peripheral surface of the cylindrical part 68. Even when the cleaning style is varied by turning the communicating pipe 50, the lead wire 80 is not entangled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner having a driving means for driving a rotary body to rotate, and a suction port body thereof.

[0002]

2. Description of the Related Art Conventionally, a suction port of a vacuum cleaner of this type is driven by a motor such as a rotary brush or a rotating wheel for driving a rotating body such as a running wheel as described in Japanese Patent Application Laid-Open No. 6-217908. A lead wire for supplying power to the means is disposed in a communication pipe whose one end is rotatably supported in the up and down direction by being guided through the vicinity of a rotation axis of the communication pipe into the case body.

[0003]

By the way, in the conventional suction port body of a vacuum cleaner, for example, a suction port is provided in a case body which has wheels at approximately four corners and has a suction port on the lower surface and which is horizontally long in the front-rear direction. The communication pipe is rotatably supported so as to be selectable between a position along the longitudinal direction of the case body and a position along the longitudinal direction of the communication pipe, and the shaft of the communication pipe when cleaning a normal floor surface. The case is run along the front-rear direction so that the case body runs long in the left-right direction to clean it.When cleaning narrow places such as between furniture, the axial direction must be along the longitudinal direction of the case body. In addition, a configuration is known in which the cleaning is performed by traveling along a longitudinal direction in the traveling direction and the cleaning mode is variable.

However, when a lead wire for supplying power to a driving means for rotating a rotating body is provided in a suction port of a vacuum cleaner having a variable cleaning mode, for example, the communication pipe is connected in the same direction. When the lead wire is rotated by a predetermined amount or more, the lead wire is wound around the communication tube, and there is a problem that rotation of the communication tube may be restricted or the lead wire may be cut.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a vacuum cleaner in which the cleaning mode is variable and the structure for supplying power to the driving means is simplified, and a suction port therefor.

[0006]

According to a first aspect of the present invention, there is provided a vacuum cleaner having a suction port body having a suction port opened on a surface facing a surface to be cleaned and having a longitudinal direction in a direction intersecting the front-rear direction. A body, a communication pipe axially supported by the case body so as to be selectively rotatable between a position along the front-rear direction of the case body and a position along the longitudinal direction and communicating with the suction port; and the case body. A rotatable member rotatably disposed on the case body; a driving means provided on the case body for rotatably driving the rotatable body; and a rotatable portion provided on the case body and the rotating portion of the communication pipe to slidably contact each other. One is provided with a pair of sliding contacts electrically connected to the driving means.

[0007] A case body having a longitudinal direction in a direction intersecting the front-rear direction is rotatably supported so as to be selectable between a position along the longitudinal direction of the case body and a position along the longitudinal direction of the case body. A pair of sliding contacts, one of which is slidably contacted with one connected to a driving means for rotating the rotating body, is provided at a rotating portion between the communicating pipe and the case body. The lead wire for supplying power to the drive means does not become entangled even if it rotates more than a certain amount, and the communication pipe can be easily selected with a simple configuration between the position along the front and rear direction of the case body and the position along the longitudinal direction The cleaning mode can be changed as much as possible.

The suction body of the vacuum cleaner according to claim 2 is
The suction body of a vacuum cleaner according to claim 1, wherein the case body includes a substantially cylindrical connecting pipe portion communicating with the suction port, and the communication pipe is rotatably supported by the connecting pipe portion. A joint part and a communication pipe part whose one end side is rotatably supported in the vertical direction so as to be rotatable in the joint part are provided, and a pair of sliding contacts are provided on one of the connection pipe part and the joint part. An annular ring-shaped contact; and a terminal provided on one of the connecting pipe and the joint to slidably contact the ring-shaped contact.

[0009] A joint portion for rotatably supporting one end side of the communication pipe portion in a vertically rotatable manner is rotatably supported on the substantially cylindrical connecting pipe portion of the case body. A terminal part which is rotatably supported on the case body so as to be capable of changing a cleaning form and is provided with an annular ring-shaped contact at one of a connecting pipe part of the case body and a joint part of the communication pipe, and slidingly contacts one of the other. Is provided, a lead wire for supplying power to the driving means is not entangled, and a configuration in which the cleaning form can be changed can be easily obtained.

The suction body of the vacuum cleaner according to claim 3 is
3. The suction port of a vacuum cleaner according to claim 1, wherein a pair of soft members are provided on the rotating portion of the case body and the communication pipe with a pair of sliding contacts positioned therebetween.

Since a pair of soft members are provided between the case body and the rotating portion of the communication pipe with the pair of sliding contacts therebetween, dust and the like enter the pair of sliding contacts, and the contact and sliding properties are improved. Prevent loss of mobility.

According to a fourth aspect of the present invention, there is provided an electric vacuum cleaner comprising: a main body of the vacuum cleaner; and a suction port of the electric vacuum cleaner according to any one of the first to third aspects connected to the main body of the vacuum cleaner. .

[0013] Since the suction port of the vacuum cleaner according to any one of claims 1 to 3 is provided, which can be easily cleaned with a simple configuration, the cleaning performance is improved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a vacuum cleaner according to an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 7, reference numeral 1 denotes a cleaner main body. The cleaner main body 1 includes a lower main body case 2a having an open upper surface and an upper main body case 2b for closing a rear upper surface of the lower main body case 2a. And a main body case 2 having a front upper surface opened by being joined to and sandwiching a bumper 3 at a peripheral edge including the above. The cleaner body 1 rotatably supports a lid 4 that closes the upper surface of the front side of the body case 2 so as to be openable and closable.

The main body case 2 is provided with a rotatable swivel wheel (not shown) on the front lower surface in the traveling direction, and a large-diameter driven wheel 6 is rotatably provided on the rear side surface of the main body case 2. The main body 1 can travel on a floor surface to be cleaned with the turning wheel and the driven wheel 6. Further, a handle 7 slidable in a vertical direction is provided at an upper portion of the main body case 2.

In the cleaner body 1, an electric blower chamber for accommodating an electric blower (not shown) is formed on the rear side, and communicates with the suction side of the electric blower and is open at the top to open the lid 4. A dust collecting chamber (not shown) which is opened / closed and accommodates a dust collecting filter is defined on the front side. Further, on the front side of the cleaner body 1, there is formed a connection port 9 which opens toward the dust collection chamber and to which a hose 8 is detachably connected.

The hose 8 has a flexible hose body 11.
A connection pipe 12 provided at one end of the hose body 11 and removably inserted and connected to the connection port 9 of the cleaner body 1;
A grip 15 is provided at the other end of the hose body 11 and is connected to a suction port body 14 via an extension pipe 13. The grip 15 is provided with operating means 17 having various switches 16, 16 for setting and operating the driving state of the electric blower.

On the other hand, as shown in FIGS. 1 to 6, the suction port main body 14 is horizontally long in a running direction which is a front-rear direction.
A lower case 21 having an open upper surface made of a synthetic resin such as acrylonitrile-butadiene-styrene (ABS) resin;
An upper case 22 that covers the upper opening and opens the lower surface of the same material at the upper portion of the lower case 21 is a soft member buffer along the peripheral surface including the front surfaces of the lower case 21 and the upper case 22.
There is provided a convex case body 24 which is fixedly connected to and sandwiches the rear portion 23, and whose rear substantially center is projected rearward.

The lower case 21 has a rib portion 25 substantially vertically on the upper surface, and the case body 24 has a horizontally elongated rectangular suction portion 26 and a pair of rear portions protruding rearward substantially at the center of the rear portion of the suction portion 26 by the rib portion 25. The shaft support portions 27 are formed in a convex shape. In the suction part 26, a rib part 25 communicates with a suction chamber 31 which is horizontally long on the front side and has an opening 30 formed on the lower surface of the lower case 21, and a rear center of the suction chamber 31. And a drive chamber 33 formed on one side of the air path chamber 32, and a circuit room formed on the other side of the air path chamber.
34 are provided.

The upper case 22 covers a substantially upper surface of the suction chamber 31 and is removably attached to the lower case 21. The case cover 36 has a substantially semicircular cross section and has an arc shape. The case cover 37 partially overlaps and covers a substantially rear upper surface of the lower case 21. The case cover 37 covers a part of the rear upper surface of the lower case 21 and forms a shaft support 27.The cover 38 is provided in series on the cover 38 and has substantially the same curvature as the case cover 36. A reinforcing plate portion 39 which is formed in an arc shape and a part of the case lid 36 overlaps and covers substantially the center of the rear portion of the suction chamber 31, and a pair of shaft support portions 27,
Suction chamber which is located between 27 and protrudes substantially cylindrical toward the rear
And a connecting pipe portion 40 communicating with 31. In addition,
The connecting pipe portion 40 is provided so that the axial direction is substantially horizontal and along the front-back direction. Then, the case cover is attached to the lower case 21.
A portion that opens on the upper surface of the case body 24 to which the 37 is attached is an engagement / disengagement opening 41.

Further, a pair of annular terminal portions 42 are provided on the outer peripheral surface of the connecting tube portion 40 so as to be coaxial with the connecting tube portion 40. Further, the other end of the lead wire 43 whose one end is introduced into the drive chamber 33 is connected to the terminal portion 42.

Then, on both ends of the front part of the lower case 21,
A driven front wheel chamber (not shown) in which the driven front wheel 44 is rotatably supported is formed. In addition, a driven rear wheel chamber (not shown) in which a driven rear wheel 45 is rotatably supported is formed in each of the pair of shaft support portions 27 of the lower case 21. The driven rear wheel 45 is provided with a protection sheet (not shown) which is a flexible member such as cloth or an elastic member such as rubber on the outer peripheral surface.
The case body 24 can run on the floor surface, which is the surface to be cleaned, by the driven front wheel 44 and the driven rear wheel 45.

Sliders 46 slidable in the left-right direction are provided at the rear edges of both sides of the case lid 36 in the left-right direction, respectively. I have. Further, tongues 47 projecting in the left-right direction are integrally provided on both side edges of the reinforcement plate 39 of the case cover 37 in the left-right direction.
Has a substantially L-shaped section toward the front inside the case body 24.
Key portions 48 projecting in a letter shape and capable of engaging and disengaging the hooks of the sliders 46, 46 of the case cover 36 are provided, and cover portions 38 are provided respectively. Then, by sliding movement of the sliders 46, 46, the case cover 36 is removably mounted on the case cover 37 joined and fixed to the lower case 21.

In the center of the rear part of the case body 24, a communication pipe 50 is disposed between the pair of shaft supports 27, 27.
The communication pipe 50 is provided with a joint section 51 as a shaft support section rotatably fitted to the connection pipe section 40 of the case cover 37 of the upper case 22.
And a communication pipe 52 whose one end is pivotally supported by the joint 51 so that the other end is rotatable in the vertical direction.

The communication pipe portion 52 includes a substantially cylindrical tubular portion 53 whose one end is bent, and a communication rotating portion 54 provided at one end of the tubular portion 53. In addition, the cylindrical portion 53
The outer peripheral surface on the bending side of the
55 forms a wiring chamber 56 therein and is fixedly mounted with screws 57 or the like. On the other hand, the communication rotating portion 54 is a substantially semi-cylindrical shape having an axial direction in the left-right direction that is orthogonal to the axial direction of the cylindrical portion 53, and is provided integrally with one end of the cylindrical portion 53. The moving cylinder portion 60 and a cylindrical portion provided integrally with the rotating cylinder portion 60.
A flapper portion 61 formed in a trumpet shape so that the inner surface expands from the inner surface of the rotary cylinder portion 53;
A reinforcing rib 62 is integrally provided substantially radially in a space on the outer surface of 61. The communication rotating portion 54 includes a reinforcing rib 62.
, That is, substantially cylindrically-located rotary shafts 63 are provided integrally at the positions of both end surfaces of the rotary cylindrical portion 60 substantially coaxially. Further, at the upper and lower edges along which the wrapper portion 61 of the communication rotating portion expands and along the axial direction of the rotating tubular portion 60, a retaining claw portion 64 projecting outward in a wall shape protrudes. ing.

Further, a wiring opening 65 communicating with a space between the rotating tubular portion 60 and the wrapper portion 61 is formed at a base end position of the communicating rotating portion 54 where the tubular portion 53 is connected. In addition, one of the rotary shafts 63, that is, the rotary shaft 63 located on the drive chamber side, has a cutout portion 66 formed in the axial direction.

On the other hand, the joint portion 51 has a cylindrical portion 68 fitted in the connecting tube portion 40 and rotatably held therein, and a substantially hemispherical protruding portion provided on a half circumference of one end edge of the cylindrical portion 68. The lower joint 69 includes a substantially hemispherical upper joint 70 that covers the upper surface of the lower joint 69 and is integrally attached by screwing or the like. Further, the lower joint portion 69 and the upper joint portion 70 are provided with a pair of substantially parallel partition ribs 71, 71 protruding in a wall shape in the up-down direction and having their distal ends joined to each other. The communication rotating part of the communication pipe part 52 at the ribs 71, 71
An air passage space 72 for accommodating the air passage 54 and a pair of inner chambers 73 formed in the left and right direction of the air passage space 72 are formed. The partition ribs 71, 71 are each formed with a notch 74 facing the joining edge in a substantially semicircular shape, and the notch 74 is formed in the notch 74.
A substantially circular bearing hole 75, 75 for rotatably supporting the 63, 63 is formed. Further, the lower joint portion 69 and the upper joint portion 70 are provided with notches 76, 76, respectively, which are formed in substantially U-shape at positions facing each other at a portion located in the air passage space 72, and these notches are provided. The communication pipe portion 52 serves as an escape portion for turning in the vertical direction by the use of 76 and 76.

Further, on the inner peripheral surface of the cylindrical portion 68 of the joint portion 51, a pair of ring-shaped contacts 77 which are formed annularly and slidably contact with the terminal portions 42 of the connecting pipe portion 40 are provided coaxially.
A sliding contact 78 is constituted by the ring contact 77 and the ring contact 77.

The communication tube 50 has a terminal pin 80a which is provided at one end with a distal end projecting from the cover portion 55 of the communication tube portion 52 and which is connected to a connector (not shown) provided at the end of the extension tube 13. The lead wire 80 provided with
From the inside, the inner space 73 of the joint part 51 passes through the rotating shaft 63 through the wiring opening 65, the space between the rotating cylinder part 60 and the wrapper part 61, and the wiring cut part 66, and the cylindrical part 68. And is arranged to be connected to the ring-shaped contact 77.

Further, on the outer peripheral surface of the connecting pipe portion 40, the sliding contact is provided on both sides of the sliding contact 78 so as to be slidable on the inner peripheral surface of the cylindrical portion 68 of the joint portion 51. A sealing member 81 which is a soft member surrounded by the connecting pipe portion 40 and the cylindrical portion 68
Are provided as a pair.

The communication tube 50 is a cylindrical portion of the communication tube portion 52.
53 is detachably connected to the cleaner main body 1 via the extension pipe 13 and the hose 8, and the suction port 30 is connected to the connection port 9 of the cleaner main body 1.
Communicate with

Further, in the case body 24, a rotary cleaning body 83 as a rotary body rotatably supported by bearings 82 provided at both ends in the left-right direction of the suction chamber 31 is provided. ing. The rotary cleaning body 83 includes a shaft 84, a shaft support member 85 rotatably provided at both ends of the shaft 84 and detachably attached to a bearing 82, a cylindrical portion 86 fitted to the shaft 84, and The cylindrical portion 86 is composed of a blade portion 88 having a blade 87 as a cleaning member, which is integrally provided in a wall shape and spiral shape on the outer peripheral surface of the cylindrical portion 86 and has a distal end curved to one side. FIG. 3 shows the blade 87 in a straight line for convenience of explanation. In addition, a hitting portion 89 that bulges out to a side opposite to the bending direction and has a large thickness is provided at a leading edge of the blade 87.

The lower end of the rotary cleaning body 83 facing the suction port 30 is located above a plane formed by the driven front wheel 44 and the driven rear wheel 45, and is brought into contact with a plate having a flat floor surface. The blade 87 is disposed so as to come into contact with the carpet, which is a floor surface having irregularities that enters the suction port 30. Further, a pulley 90 is provided at one end of the rotary cleaning body 83 located on the drive chamber 33 side.

In the drive chamber 33 of the case body 24, an electric motor 92 as a driving means to which the lead wire 43 is connected is provided. An output pulley 95 is provided at the end of the output shaft 93 of the electric motor 92 so that the endless belt 94 is wound around the pulley 90 of the rotary cleaning body 83.

Further, a circuit board mounted with a control circuit (not shown) for controlling the driving state of the electric motor 92 and connected by lead wires is provided in the circuit room of the case body 24.

Next, the operation of the above embodiment will be described.

At the time of cleaning, the suction port main body 14 is connected to the cleaner main body 1 via the extension pipe 13 and the hose 8. With this connection, the terminal pin 80a of the suction port main body 14 is connected to a connector (not shown) of the extension pipe 13, and the electric motor 92 in the suction port main body 14 is connected to the lead wire 43, the sliding contact 78, the lead wire 80, and the extension pipe. Power is supplied to the cleaner main body 1 via a power supply line (not shown) provided on the hose 13 and the hose 8. In this state, by operating the switch 16 of the operating means 17 while holding the grip 15 of the hose 8, the electric blower and the electric motor 92 are appropriately driven in a desired driving state, and the grip 15 is pushed to move the suction port main body. Run 14 back and forth on the floor. When the suction port body 14 travels on the floor, the communication pipe 50
Is in a state along the front-back direction which is the traveling direction of the suction port main body 14.

When the electric motor 92 is driven, the rotary cleaning member 83 is rotated via the endless belt 94. When the rotary cleaning member 83 is rotated, the blade 87 is rotated when the floor surface is a carpet or the like.
The hitting portion 89 strikes the floor and strikes out the dust, and at the same time, scrapes or sweeps the dust. Further, dust is sucked from the suction port 30 together with air by a negative pressure generated by driving the electric blower of the cleaner body 1. The sucked dust flows through the extension pipe 13 and the hose 8 into the dust collection chamber of the cleaner body 1 and is captured.

On the other hand, when cleaning a relatively narrow place such as between furniture, that is, a floor surface having a width dimension in which the horizontally long suction port body 14 cannot travel, the axial direction of the communication pipe 50 is set to the longitudinal direction of the suction port body 14. The communication pipe 50 is rotated so as to follow the
The cleaning mode is changed so that the longitudinal direction is the running direction,
Cleaning is performed by sliding the suction port body 14 into the gap.

As described above, in the above-described embodiment, the axial direction of the case body 24 is
A sliding contact 78 is provided at a rotating portion between the communication tube 50 rotatably supported rotatably and the case body 24 at a position along the front-back direction and a position along the longitudinal direction of the case body 24, that is, the connection of the case body 24. An electric motor 92 disposed in the case body 24 on the outer peripheral surface of the tube portion 40
And a connecting pipe section.
A ring-shaped contact 77 that is electrically slidably connected to the terminal portion 42 is provided on the inner peripheral surface of the cylindrical portion 68 of the joint portion 51 of the communication tube 50 into which the 40 is rotatably inserted. For example, the lead wires 43 and 80 for supplying power to the electric motor 92 even when the communication pipe 50 is rotated in the same direction, such as changing the cleaning mode by rotating the communication pipe 50, are connected to the communication pipe 50 or the like. The communication tube 50 is easily encased in the case body 24 without entanglement.
Can be selectively rotated between a position along the front-rear direction and a position along the longitudinal direction, and the cleaning mode can be changed.

The case 24 has a substantially cylindrical connecting pipe portion 40.
In addition, the communication pipe 50 is provided by providing a communication pipe 52 such that one end is rotatable vertically in the joint part 51 having a cylindrical part 68 that rotatably fits into the connection pipe 40. Since the axial direction is selectable between the position along the front-back direction of the case body 24 and the position along the longitudinal direction, the sliding contact 78 can be easily arranged, the structure can be simplified, and the manufacturability is improved. it can.

Further, since a pair of seal members 81 are provided so as to surround and enclose the pair of sliding contacts 78 therebetween, the rotating portion of the communication pipe 50 which is an air passage through which air sucked in with dust flows. It is possible to prevent dust from entering the sliding contact point 78, thereby impairing the slidability or causing a connection failure such as a connection failure, and also prevent leakage from the rotating part, resulting in reduced cleaning efficiency. Can be prevented.

In the above embodiment, not only the canister-type vacuum cleaner but also an upright type in which the suction port main body 14 is formed directly on the lower surface of the cleaner main body 1, and the vacuum cleaner main body 1 and the suction port The present invention can also be applied to a self-propelled vacuum cleaner or the like in which the main body 14 is integrated.

Further, the communication pipe 50 has been described as being composed of the joint part 51 and the communication pipe part 52. For example, an extension pipe is connected to the communication pipe part 52 provided on the case body 24 so as to be rotatable in the vertical direction. To form a communication pipe by rotatably connecting the joints
Any configuration is possible in which the axial direction is selectably rotatable between a position along the front-back direction of the case body 24 and a position along the longitudinal direction.

Further, although the seal member 81 has been described, the seal member 81 may not be provided if the configuration is such that dust can be prevented from entering and leakage can be prevented. By providing the seal member 81, the configuration that can prevent dust from entering and further prevent leakage can be simplified, and manufacturability can be improved.

Also, the lead wire 80 has been described as being disposed inside the rotary shaft 63 of the communication tube 50. For example, as shown in FIG. The partition rib 71 is provided along the vertical direction substantially along the rotation of the communication pipe portion 52, and the rotating cylindrical portion is provided from within the wiring chamber 56 through the wiring opening 65.
The lead wire 80 passing through the space between the wrapper portion 61 and the wrapper portion 61 may be connected to the ring-shaped contact 77 through the wire cutout portion 66 of the partition rib 71.

Further, the description has been made using the sliding contact 78.
For example, the rotation range of the joint 51 is restricted to 360 ° or less,
That is, by preventing rotation in one or more turns in the same direction, the inside of the wiring chamber 56 is formed via the wiring opening 65, the space between the rotating cylinder 60 and the wrapper 61, and the wiring cutout 66. The room 73 accommodates a certain amount of slack, and the case 24
It may be introduced inside. Even in this configuration, for example, even if the communication tube 50 is rotated in the same direction, the lead wires 43 and 80 for supplying power to the electric motor 92 do not become entangled with the communication tube 50 or the like. The axial direction is the case body
24 can be selectively rotated between a position along the front-rear direction and a position along the longitudinal direction, and the cleaning form can be changed. Further, by restricting the rotation, the length dimension of the excess slack can be shortened, the space for accommodating the excess portion can be reduced, and the weight and size can be reduced, and the productivity can be improved.

The case 24 has a substantially cylindrical connecting pipe portion 40.
In addition, the communication pipe 50 is provided by providing a communication pipe 52 such that one end is rotatable vertically in the joint part 51 having a cylindrical part 68 that rotatably fits into the connection pipe 40. Since the axial direction is configured to be selectable between a position along the front-rear direction and a position along the longitudinal direction of the case body 24, an inner chamber 73 is formed to pivotally support the communication pipe part 52 at the joint part 51. By using the inner chamber 73 to accommodate the slack, there is no need to separately provide a space for accommodating the lead wire, and the size can be reduced.

Further, the rotary cleaning body 83 is driven to rotate.
For example, a configuration may be employed in which the traveling wheels are rotationally driven to improve traveling performance. Further, the rotating cleaning body 83 is not limited to one, and may be driven by a plurality of rotations.
A rotating brush provided with raised brushes in the shape of a wall, a brush provided with a cloth blade portion, or a brush provided with any cleaning member combining a brush, a cloth blade, and a blade 55 may be used.

[0051]

According to the suction port body of the vacuum cleaner according to the first aspect, the axial direction is rotatably supported so as to be selectable between a position along the front-rear direction and a position along the longitudinal direction of the case body. A sliding contact is provided at the rotating portion between the communication pipe and the case body, so that even if the communication pipe is rotated by a predetermined amount or more in the same direction, a lead wire for supplying power to the driving means does not become entangled, and a simple configuration. Thus, the communication pipe can select the axial direction between a position along the front-rear direction of the case body and a position along the longitudinal direction, and the cleaning form can be easily changed.

According to the suction port of the vacuum cleaner according to the second aspect, in addition to the effect of the suction port of the vacuum cleaner according to the first aspect, one end of the communication pipe is provided at the connecting pipe of the case body. Since the joint that rotatably supports the up and down direction is rotatably supported, the communication pipe can be rotatably supported so that the cleaning mode can be changed, and the connection between the connection pipe of the case body and the connection of the communication pipe. By providing an annular ring-shaped contact on one side and a terminal part in sliding contact with the other, a lead wire for supplying power to the driving means does not become entangled, and a configuration in which the cleaning mode can be easily changed is easily obtained. Can be

According to the suction port of the vacuum cleaner according to the third aspect, in addition to the effect of the suction port of the vacuum cleaner according to the first or second aspect, a pair of rotating parts of the case body and the communication pipe are provided. To provide a pair of soft members with the sliding contact between them,
It is possible to prevent dust or the like from entering the sliding contact and impairing the contact and slidability.

According to the fourth aspect of the present invention, the vacuum cleaner is provided with the suction port of the first to third aspects, which can be easily cleaned with a simple configuration, so that the cleaning performance is improved. Can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a communication pipe according to an embodiment of the present invention.

FIG. 2 is a partially cutaway side view showing the suction port main body.

FIG. 3 is a plan view partially cut away from the above.

FIG. 4 is an exploded perspective view showing a case cover and a communication pipe of the suction port main body;

FIG. 5 is a side sectional view showing a rotating portion of the communication pipe of the suction port main body.

FIG. 6 is an exploded perspective view showing the communication pipe section.

FIG. 7 is a perspective view showing a cleaner body according to the first embodiment;

FIG. 8 is a perspective view of a communication pipe according to another embodiment of the present invention, with a part of the communication pipe cut away.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 14 Suction port main body 24 Case body 30 Suction port 40 Connecting pipe part 42 Terminal part 50 Communication pipe 51 Joint part 52 Communication pipe part 77 Ring contact 78 Sliding contact 81 Seal member as a soft member 83 Rotating body Rotary cleaning body 92 Electric motor as drive means

Claims (4)

[Claims] 1. A case body having an inlet opening on a surface facing a surface to be cleaned and having a longitudinal direction in a direction intersecting the front-back direction, and an axial direction of the case body extends along the front-back direction of the case body. A communication pipe rotatably rotatably supported at a position and a position along the longitudinal direction and communicating with the suction port; a rotating body rotatably disposed on the case body; and a rotating body provided on the case body. Driving means for driving the rotating body to rotate, a pair of sliding contacts provided on the rotating part of the case body and the communication pipe and slidably contacting each other and one of which is electrically connected to the driving means; A suction port body for a vacuum cleaner, comprising: The case body includes a substantially cylindrical connecting pipe portion communicating with the suction port, and the communication pipe has a joint portion rotatably supported by the connecting pipe portion and one end of the joint portion. A communication pipe portion rotatably supported in the up-down direction; a pair of sliding contacts; an annular ring-shaped contact provided on one of the connection pipe portion and the joint portion; 2. A suction port body for an electric vacuum cleaner according to claim 1, further comprising: a terminal portion provided on one of the tube portion and the joint portion to slidably contact the ring-shaped contact. 3. The vacuum cleaner according to claim 1, wherein a pair of soft members are provided at the rotating portion of the case body and the communication pipe with a pair of sliding contacts positioned therebetween. Suction port body. 4. A vacuum cleaner comprising: a vacuum cleaner main body; and a suction port of the vacuum cleaner according to claim 1, which is connected to the vacuum cleaner main body.