JP2963425B2 - Vacuum cleaner and its suction body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner capable of improving operability and cleanability, and a suction body thereof .

[0002]

2. Description of the Related Art A suction body used in a conventional vacuum cleaner is connected to a hand handle via an extension tube, and the hand handle is rotated about a longitudinal direction of the extension tube as a rotation axis, thereby obtaining a suction body. Is mounted to be rotatable to some extent by the joint structure provided in.

[0003] The structure is such that a first body is mounted so as to be vertically swingable about both sides in the longitudinal direction of the mouthpiece body as rotation axes.
And a second joint having a bent tubular form, one end of which is rotatably mounted in the axial direction of the first joint, and the other end of which is fixed to the extension tube. According to this mouthpiece, by rotating the hand handle, the mouthpiece can be rotated by the angle at which the second joint is bent, generally about 45 degrees.

For example, these structures are disclosed in Japanese Unexamined Patent Publication No. 5-245.
No. 073.

[0005]

The mouthpiece of the conventional vacuum cleaner is formed on the basis of a horizontally long suction hole for cleaning by moving the mouthpiece in a front-rear direction through a handle at hand, and forming a floor surface. We try to clean efficiently. By providing the two joints described above in order to improve the cleanability of the bottom of the table and the gap, the up-down movement of the hand handle and the suction body itself can be performed while keeping the suction body in close contact with the floor by operating the hand handle. Allows rotation.

[0006] However, although the conventional mouthpiece can make the structure of the mouthpiece itself robust, there is a problem in operability with a handle at hand because there is a restriction in the operating range of the mouthpiece itself.

[0007] For example, when cleaning the wall, it is efficient to move the suction body along the wall surface with the longitudinal direction of the suction body parallel to the wall surface. However, in the structure of the conventional mouthpiece, since the rotation angle of the joint can be rotated only about 45 degrees even if the hand handle is rotated 90 degrees, the work must be performed in an unreasonable posture or performed with both hands. did not become.
Further, when cleaning a low gap such as under a softer, the bent joint is stuck and the cleaning efficiency as expected cannot be achieved.

[0008] It is an object of the present invention to provide a vacuum cleaner capable of improving operability and cleanability, and a mouthpiece thereof .

[0009]

According to one aspect of the present invention, there is provided a vacuum cleaner having, for example, a vacuum cleaner body having means for sucking dust together with an air flow, and a vacuum cleaner for sucking dust. A suction pipe having a suction port, and a connection pipe forming a ventilation path for guiding dust sucked from the suction port of the suction port to the vacuum cleaner main body. In the vacuum cleaner configured to clean the cleaning surface by guiding the dust sucked from the cleaner to the main body of the vacuum cleaner through the connection pipe, the suction body is longer in the left-right direction than in the depth direction. Has a long suction main body, and a free connection portion that connects the suction main body to the connection pipe and forms a ventilation path for guiding dust into the inside, and the free connection portion is formed of a resin molded product. Become It has a hollow lower arm portion and an upper arm portion each having a ventilation path formed on its own inner surface, and one end of the lower arm portion and one end of the upper arm portion have their inner and outer peripheral surfaces overlapping each other. rotatably connected Te <br/> by a first rotation shaft provided on the other end of the lower arm unit, a second rotary shaft having the same direction of the axial and lateral direction of the suction port body Thus, the other end of the upper arm portion is connected to the connection pipe, and the second rotation shaft is
The connection pipe is rotatable in a vertical direction with respect to the cleaning surface, and the first rotation shaft is configured to move the connection pipe to the second rotation.
Enables rotation in the direction orthogonal to the rotation direction of the turning shaft ,
A rotation surface orthogonal to the axis of the first rotation shaft , and the upper arm portion ;
By arranging the pipe axis of the connection pipe to be connected substantially in parallel, and by rotating the connection pipe about the pipe axis, from the state where the depth direction of the mouthpiece main body is the front-back direction of cleaning,
The left-right direction of the mouth main body can be changed to a state in which the front-rear direction of the cleaning is set, and the bottom surface of the mouth main body and the pipe axis of the connection pipe connected to the upper arm portion can be in a vertical state. And so on. In another aspect of the invention for achieving the above object, the suction body of the vacuum cleaner includes, for example, a suction port for sucking dust on a lower surface, and a suction body having a length in the left-right direction longer than the length in the depth direction. A free connecting portion for connecting the suction main body to a connection pipe forming a ventilation path for guiding dust sucked from the suction opening of the suction main body to the cleaner main body, and the free connecting portion includes:
It has a hollow lower arm and an upper arm, each of which is made of a resin molded product and has a ventilation path formed on its own inner surface, and one end of the lower arm and one end of the upper arm are mutually hollow. The first is provided so that the inner and outer peripheral surfaces of the shape overlap each other .
The other end of the lower arm portion is rotatably connected by a rotation shaft , and the other end of the lower arm portion has a second axis parallel to the left-right direction of the mouthpiece main body .
The other end of the upper arm is connected to the connection pipe by a rotation shaft , and the other end of the upper arm is connected to the second pipe.
The axis of rotation enables a pipe axis of a portion of the upper arm connected to the connection pipe to rotate in a vertical direction with respect to the cleaning surface, and the first axis of rotation is connected to the connection pipe in the upper arm. A rotation surface orthogonal to an axis of the first rotation axis , the rotation axis of the tube axis of the connected portion being allowed to rotate in a direction orthogonal to the rotation direction of the second rotation axis ; By disposing the pipe axis of the portion connected to the connection pipe in the above in a substantially parallel manner, and by rotating the pipe axis of the portion of the upper arm connected to the connection pipe as a center, the depth direction of the mouthpiece main body is changed. It is possible to change from the state of the front and rear direction of cleaning to the state of the left and right direction of the suction body as the front and rear direction of the cleaning,
Further, it is configured such that a bottom surface of the mouthpiece main body and a tube axis of a portion of the upper arm portion connected to the connection tube can take a vertical state.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

(First Embodiment) FIGS. 1 to 25 show an embodiment of a vacuum cleaner according to the present invention.

First, an outline of this embodiment will be described with reference to FIG. 1 showing an external perspective view of a vacuum cleaner.

In FIG. 1, a vacuum cleaner generally designated by the reference numeral 1 is a vacuum cleaner body 100 provided with a blower (not shown) for sucking dust, and one end is attached to the vacuum cleaner body 100. A flexible suction hose 200 communicated with the blower;
0, a hand handle 300 attached to the blower and connected to the blower, a connection pipe 400 attached to the hand handle 300 and connected to the suction hose 200, and a connection pipe 400 attached to the connection pipe 400. And a suction body 550 communicating with the suction port.

The main body 100 of the vacuum cleaner includes a dust collecting chamber having a disposable dust bag therein, and a pair of large wheels 101.
And one free wheel 102 can be moved via the suction hose 200. The vacuum cleaner main body 100 receives power from a household outlet via a power cord (not shown) to operate the blower. And operation control of this vacuum cleaner main body 100 is as follows.
The infrared light receiving unit 103 in the operation display unit provided on the upper surface of the vacuum cleaner main body 100 is operated by receiving an operation signal transmitted from the handle 300 at hand.

As described above, since the electrical connection between the handle 300 and the main body 100 of the vacuum cleaner is a connection using infrared rays, the suction hose 200 is used to transfer dust to the main body 100 of the vacuum cleaner. And a function as a moving pulling means for moving the vacuum cleaner main body 100.

The handle 300 is attached to the suction hose 2.
00 and the connection pipe 400, a function of controlling and moving the vacuum cleaner main body 100, and a function of operating the movement of the suction body 550. The hand handle 300 is fixedly connected to the suction hose 200 and is detachably attached to the connection pipe 400, thereby connecting the suction hose 200 and the connection pipe 400 to form a dust conveyance path. ing. Further, the hand handle 300 is provided in the longitudinal direction of the connection pipe 400, that is,
At the upper end on the extension of the central axis B2 of the connection pipe 400, the handle has an angle of about 110 degrees with the central axis B2, and the longitudinal direction thereof substantially coincides with the connection direction of the suction hose 200 and the connection pipe 400. A section 301 is provided. With this handle portion 301, the vacuum cleaner main body 100 can be moved via the suction hose 200,
Further, the movement of the mouthpiece 550 can be controlled. In particular, according to the handle portion 301, the twisting operation, that is, the rotation P1 about the central axis B2 can be easily performed. At this time, since the handle portion 301 is provided at the upper portion, the suction hose 200 provided below does not disturb the twisting operation.

Further, an operation section 302 for operating the vacuum cleaner main body 100 is provided near the handle section 301. The operation unit 302 and the handle unit 301
An infrared transmitter 303 is provided at an end of the vacuum cleaner. An operation signal is transmitted from the infrared transmitter 303 to the infrared receiver 103 provided in the vacuum cleaner main body 100, and a power supply of the vacuum cleaner main body 100 is provided. ON, OFF and various controls can be performed. Since the handle 300 is provided with a power source such as a battery (not shown), it is not necessary to perform electric wiring on the suction hose 200. In addition, since two infrared transmitters 303 are provided, the operation signal can be reliably transmitted using the reflection from the ceiling or wall surface, etc.
Erroneous operation can be reduced.

The connection pipe 400 is connected to the handle 3
00 and the suction body 550, and furthermore, the hand handle 300 and the suction body 550 are connected so as to have a predetermined distance relationship, so that the movement (movement or rotation) of the hand handle 300 is controlled by the suction body 550. It has the function of transmitting movement (movement and rotation). In this embodiment, two pipes 401 and 402 having different sizes are combined and configured to be expandable and contractible so that they can be fixed at a predetermined position, and a hand handle 300 is attached to one side and a mouthpiece 550 is detachably attached to the other side. I am trying to install it.

The suction body 550 has a suction body 1010 (see FIG. 2) for sucking dust on its bottom surface.
000, the suction body 1000 is connected to the connection pipe 400, and the bottom surface of the suction body 1000 is always in contact with the floor surface in response to the movement of the hand handle 300 transmitted via the connection pipe 400. And a free connecting portion 1530 that communicates with the connection pipe 400 so that an air flow containing dust sucked from the suction main body 1000 is guided to the connection pipe 400.

The suction main body 1000 has a suction port 1010 (see FIG. 2) provided with a rotary brush 1011 (see FIG. 2) for sucking dust on the floor surface on the bottom surface. The universal connection part 1530 is connected to the connection pipe 40 with respect to the suction body 1000.
0 is connected so as to be relatively rotatable in the height direction Y and the left-right direction X, and the rotation P1 of the twisting operation of the hand handle 300 is directly used as the rotation P1 of the suction body 1000.
2 is provided. In this embodiment, a freely connecting portion 1530 is attached to the mouth main body 1000 so as to be rotatable, and a lower arm portion 153 that enables rotation in the height direction Y.
1 and an upper arm 1532, one end of which is attached to the connection pipe 400, and the other end of which is attached to the lower arm 1531 and to enable rotation in the left-right direction X.

In this embodiment, although the details will be described later, the angle of the elevation direction Y is set to about 90 degrees from the floor surface,
In the left-right direction X, it is set to be operable in a range of about 360 degrees. The angle in the height direction Y may be about 90 degrees or more from the floor surface in consideration of the storability described later. Also,
If the horizontal direction X is about 180 degrees, there is no problem with the cleaning performance.

The mouthpiece 550 is provided on the suction body 10.
Bumper part 10 provided with a sliding member 1100 around 00
By providing 33, the wheel 1200 which improves the cleaning property of the wall and which smoothly moves the suction body 1000 in the longitudinal direction is provided on the bottom surface. Hereinafter, for the sake of explanation, a moving direction suitable for cleaning a wall crest or the like in which the mouthpiece 550 moves in parallel with its longitudinal direction is referred to as a vertically long moving direction (a vertically long moving direction as viewed from the operator) V1. The moving direction suitable for normal cleaning in which the mouthpiece 550 moves in parallel with the short side direction is referred to as a horizontally long moving direction (a horizontally long moving direction viewed from the operator) V2.

Furthermore, by providing a dust guide means 1300 (see FIG. 9) at the front (between the tip) of the suction port 1010 provided on the bottom surface of the suction main body 1000, dust on the wall which is difficult to remove can be efficiently removed. You can inhale.

As described above, the vacuum cleaner 1 according to the present embodiment.
According to this, since the operation signal is transmitted via the infrared signal, there is no need to wire the suction hose 200, and thus the weight of the suction hose 200 can be reduced. For this reason, the burden on the handle 300 held by the user can be reduced, and the running of the vacuum cleaner main body 100 and the operation of the mouthpiece 550 can be improved. In particular, a major feature of this embodiment is that the operation of the mouthpiece 550 via the hand handle 300, for example, the rotation P1 of the twisting operation of the hand handle can be used as it is as the rotation P2 of the mouthpiece 550. In addition, the operation performed by the user with the handle 300 at hand can be smoothly performed as the movement of the mouthpiece 550. Specifically, for example, the hand handle 300
Is twisted 90 degrees (rotation P1) to obtain the suction body 550.
Is rotated 90 degrees (rotation P2) as shown by the dotted line in FIG. 1 and the hand handle 300 is moved normally back and forth to move the suction body 1000 along the wall surface in the left-right direction V1.
The floor can be cleaned near the wall while moving back and forth in the direction of. At this time, the suction member 550 can be smoothly moved by the sliding member 1100 and the wheel 1200, and the damage to the wall surface can be reduced.
It is possible to suck in more efficiently.

Hereinafter, referring to FIGS. 3 to 5 based on FIG.
The schematic structure of the mouthpiece 550 will be described. FIG. 2 is a component configuration diagram of the mouthpiece 550, FIG. 3 is a cross-sectional view of the planar configuration of the mouthpiece 550, and FIGS.

First, referring to FIG. 2, as described above, the mouthpiece 550 is connected to the mouthpiece body 1000 and the free connecting portion 1530.
It is composed of The mouthpiece body 1000 includes a lower case 1001 that forms the main skeleton of the mouthpiece body 1000, a front upper cover 1002 that covers the front of the mouthpiece body 1000,
Rear upper cover 10 that covers the back of mouth body 1000
03.

The lower case 1001 is provided with a partition wall 1004 which divides the suction main body 1000 back and forth at a slightly rearward position. A front portion is a suction chamber 1005, and a center of the rear portion is a mounting portion 1006 of the free connecting portion 1530. The mounting part 100
6 are provided as ventilation passages 1007 for driving a turbine 1012 to be described later. At the center of the partition wall 1004, a cutout portion 1030 for guiding dust in the suction chamber 1005 to the free connecting portion 1530 is formed. Notch 1
Numeral 030 is formed in a bell mouth shape which is opened in a trumpet shape on the suction chamber 1005 side, so that an air flow containing dust is smoothly guided to the free connecting portion 1530.

A rear upper cover 1003 covers an upper portion of a mounting portion 1006 for the free connecting portion 1530,
A part of the free connecting portion 1530 is connected to the lower case 1001.
And is attached with a screw or the like (not shown). Further, front upper cover mounting portions 1031 for fixing the front upper cover 1002 are provided on both front sides of the rear upper cover 1003. The front upper cover mounting portion 10
An opening / closing lever 1022 is provided on the back side (the back side in the drawing) of
(See FIGS. 8 and 10). Further, the back side of the front upper cover mounting portion 1031 is connected to the suction main body 1000.
The front side is mounted so as to constitute a part of the ventilation path 1007.

The front upper cover 1002 is connected to the suction chamber 10
05 and the upper part of the ventilation path 1007, and the lower case 10
01 together with a suction chamber 1005 and a ventilation path 1007, and hooks (not shown) provided on both sides of the front part of the front upper cover 1002 are hooked on the lower case 1001,
Mounting ribs 103 not shown in FIG. 2 provided on both sides of the rear portion
7 (see FIG. 10) is detachably attached by the opening / closing lever 1022 of the front upper cover attaching portion 1031.

The lower case 10 below the suction chamber 1005
A suction port 1010 is formed in 01, and a rotary brush 1011 for scraping up dust and the like is disposed in a suction chamber 1005 above the suction port 1010. The rotating brush 1011 is formed by arranging a flexible blade having a high dust-raising effect and a brush having a high wiping effect such as nylon in grooves provided in the outer peripheral axis direction of the rotary core. A turbine 1012 is mounted.

The rotating brush 1011 and the turbine 10
Reference numeral 12 denotes a rotating shaft 1 provided at both ends of the turbine 1012.
The rotary brush 1011 and the turbine 1012 are inserted into bearings 1014 formed at both ends of the suction chamber 1005 and pressed by bearings (not shown) provided inside the front upper cover 1002. 1005 so as to be rotatable.

Notches 1032 are formed on both sides of the partition wall 1004 behind the turbine 1012, and ventilation holes 1016 are provided on both sides of the front upper cover 1002 that covers the ventilation path 1007. Formed,
The air taken in through the ventilation holes 1016 is
07 through the opening 1015 and the turbine 10
12, the rotating brush 1011 attached to the turbine 1012 rotates.

Now, the driving of the rotary brush 1011 will be described in detail with reference to FIG.
2, a multi-blade nozzle composed of a number of nozzles (not shown) for blowing air toward the turbine 1012 is disposed so as to substantially cover the outer periphery of the turbine 1012. The multi-blade nozzle is arranged so as to be divided into upper and lower parts.
It is fixed to the back, and the lower multi-blade nozzle is
01 is fixed via a screw.

The air blown to the turbine 1012 is
The turbine 1012 is rotated, and gathers at the center while winding around the rotating brush 1011 that rotates at a high speed as a swirling flow, together with the airflow including the dust wound up by the rotating brush 1011 sucked from the suction port 1010, and the notch 1030. It is guided to the vacuum cleaner main body 100 through the free connecting portion 1530.

As described above, according to the present embodiment, the mouthpiece 5
The nozzle 50 rotates the turbine 1012 and the rotating brush 1011 by the ventilation hole 1016, and furthermore, by the synergistic effect of the swirling flow generated in the suction port 1010, the dust can be absorbed while the dust on the cleaning surface is wound up, so that the dust collection performance can be greatly improved. .

Returning to FIG. 2, a viewing window 1017 is provided at the front center of the front upper cover 1002 located above the rotating brush 1011. This viewing window 1017 is
A transparent resin material, for example, a scratch-resistant acrylic resin is used. Preferred is the suction chamber 1 of the viewing window 1017.
The inner surface of the 005 is coated with a coating, for example, UV coating, in order to reduce scratches due to dust emitted by the rotating brush 1011, and is further formed into a convex lens to enlarge the inside and make it easier to see. Thus, the dirt on the rotating brush 1011 can be known from outside. Also,
Since the operating state of the rotating brush 1011 can be visually observed through the viewing window 1017, for example, a hearing-impaired person who cannot easily hear a driving sound or an abnormal sound can be operated by the operating state of the electric vacuum cleaner 1 or a rotation caused by a foreign substance being mixed during driving. Brush 101
It is possible to know troubles such as the stop of 1. Therefore, according to this embodiment, it is possible to easily confirm the operation state without an electrical display requiring electric wiring.

On the other hand, the free connecting portion 1530 is composed of a cylindrical lower arm 1531 and an upper arm 1532. As shown in FIG. 4, the lower arm 1531 and the upper arm 1532 have a tube axis B1 of the lower arm 1531 and an upper arm 1 as viewed from the side.
With the pipe axis B2 of 532 (the central axis of the connection pipe 400) parallel, the upper arm 1532 is located at the upper position, the lower arm 1531 is located at the lower position, and both arms 1531 and 1532 are arranged so that one ends thereof overlap. A first rotating shaft (first rotating connecting portion) 1533 is provided at the overlapping position. The first rotation shaft 1533 is a cylindrical arm 1531, 15.
32 and both are relatively rotatable,
The rotation in the left-right direction X is enabled.

In this embodiment, a rotary shaft portion 1533a protruding in a tubular shape is provided above one end of the lower arm portion 1531,
A tubular concave rotating bearing portion 1533b is provided below one end of the upper arm portion 1532, and the rotating bearing portion 1533b and the rotating shaft portion 1533a are rotatably mounted so as to prevent air leakage. Shaft (first rotary connection part) 1
533. Also, the first rotation shaft 153
By providing the lock ring 1534 in the third 3, the first rotation shaft 1533 is fixed (positioned) at a predetermined rotation position.
I can do it.

On the other hand, the other end of the lower arm portion 1531 is provided with a second rotation shaft (second rotation connection portion) 1535 that enables rotation in the height direction Y (vertical direction in the drawing). .
In this embodiment, the second rotating shaft 1535 is connected to rotating shafts 1503 formed on both sides of a cylindrical lower arm 1531,
It comprises a bearing 1018 formed on the mounting portion 1006 of the lower case 1001 and a bearing 1019 formed on the rear upper cover 1003, and the rotary shaft 1503 is mounted between the bearing 1018 and the bearing 1019. As a result, the universal connection part 1530 is rotatably connected to the mouthpiece main body 1000.

On the other hand, the other end of the cylindrical upper arm 1532
Connecting portion 1507 detachably connected to connection pipe 400
Is formed. In this embodiment, the upper arm 1532
The upper surface is formed of a separate member cover 1536 to improve the design. In general, when the thickness of the resin molded product is made non-uniform, there is a problem that the design properties such as sink marks are impaired. In this embodiment, as shown in FIG. 4, the passage of the air flow between the lower arm portion 1531 and the upper arm portion 1532 is made continuous with a gentle curve without unevenness, so that the air flow including dust can be eliminated without resistance. However, if this passage is formed with the same thickness, its appearance becomes uneven by the second rotation shaft 1533 and the like, which is subject to design restrictions. Therefore, in this embodiment, the upper portion of the upper arm portion 1532, which is most noticeable in appearance, is formed by the upper cover 1536 of a separate member, so that weld lines and sink marks are made inconspicuous while improving strength.

4 and 5, in this embodiment, the rotation angle range of the second rotation shaft 1535 in the height direction Y is 90 degrees.
Since the angle is set to degrees, the angle of the notch portion 1030 and the lower arm portion 1531 can be maintained even when the angle in the height direction Y shown in FIG. 4 is 0 degree or when the angle in the height direction Y shown in FIG. In order for the ventilation passage to communicate with a sufficient opening area, the shutter mechanism 15
37. The shutter mechanism 1537 includes two shutters 1538 a and 1538 b that move around the second rotation axis 1535 so as to close the upper and lower portions of the lower arm 1531 as the lower arm 1531 moves.
1 is sandwiched between them. In this embodiment, as shown in FIG. 4, when the angle in the vertical direction Y is 0 degree, the upper shutter 1538a is connected to the suction main body 1000 (the rear cover 100).
From 3), the rib provided at the end of the upper arm 1532 and the rib provided at the end of the upper shutter 1538a are caught and pulled out to close the gap between the lower arm 1531 and the suction main body 1000, and the lower shutter 1538b is closed. Suction body 100
0 (lower cover 1001). From this state, the lower arm 1531 increases the angle in the height direction Y, and when the lower arm 1531 rotates to a predetermined angle, the upper shutter 1538a is pushed by the lower arm 1531 and stored in the suction body 1000. And conversely, the lower shutter 153
4b, the rib provided at the end of the lower arm 1531 and the rib provided at the end of the lower shutter 1538b are caught and the lower shutter 1538b is pulled out. As shown in FIG. When the angle in the direction Y is 90 degrees, the lower shutter 1538b is pulled out, and the upper shutter 1538a is housed.

Even if the lower arm 1531 is rotated by 90 degrees by the shutter mechanism 1537, the air passage between the notch 1030 and the lower arm 1531 can be prevented while preventing the air flow from leaking and maintaining a sufficient opening area. Can communicate. In addition, since the openings of the notch 1030 and the lower arm 1531 can be made larger as a whole, large dust can be easily passed and clogging can be reduced. In addition,
In this embodiment, a robust structure is adopted by employing a pair of shutters 1538, but a plurality of shutters may be employed. Further, the structure may be further simplified by using a flexible elastic material or bellows instead of the shutter 1538. Further, the opening area of the cutout portion 1030 and the lower arm portion 1531 is increased in the lateral direction so as to increase the opening area, so that the opening area of the ventilation path can be secured without employing the shutter mechanism 1537. it can. In addition, in this case, since the shutter 1538 is not used, dust mixed between the members can be reduced, and the rotation performance can be improved.

As described above, the universal connecting portion 1 according to the present embodiment.
According to 530, since two orthogonal rotation axes, that is, the second rotation axis 1535 in the height direction Y and the first rotation axis 1533 in the left-right direction are provided, the rotation of the twisting operation of the hand handle 300 is performed. P1 can be directly converted into rotation P2 of the turning operation of the suction body 550. Moreover, according to the free connecting portion 1530, since the two rotating shaft structures, particularly the first rotating shaft 1533, have a simple rotating structure, the manufacturing is easy and the appearance can be simplified without any irregularities. , While improving the design,
It is possible to improve safety measures such as pinching a finger and cleaning performance.

A bumper portion 10 made of an elastic material such as rubber or soft resin is provided on the upper portion of the lower case 1001.
33 are provided. The bumper portion 1033 is provided on the outer periphery of a position where the lower case 1001 and the front upper cover 1002 are in contact with each other to improve the airtightness of the suction chamber 1005, and is provided so as to protrude around the suction port body 1000, such as furniture. It is intended to reduce damage to the user.

In this embodiment, the bumper section 1033
, The free connecting portion 15 which becomes the front portion of the suction body 550
By providing a sliding member 1100 with a flocked material such as nylon on the long side opposite to the mounting portion 1006 where the 30 is mounted, an impact absorbing function of preventing damage to furniture and the like is provided. While the suction body 5 on the wall etc.
Cleaning can be performed while sliding along a wall surface or the like while pressing 50.

In this embodiment, the bumper 103
3 is adopted, but a thick portion protruding outward from the other peripheral side is formed around the upper portion of the lower case 1001 to increase the overall rigidity, and the thick portion 1020 is attached to the sliding member 110.
0 may be provided to reduce the number of parts.

As described above, the suction body 550 according to this embodiment is
Since the rotary brush 1011 is rotated by using the turbine 1012 rotating by the suction airflow of the blower provided in the electric vacuum cleaner main body 100 as a drive source, the weight of the suction body 550 can be reduced. In addition, at the rear center of the suction chamber 1005, a mounting portion 1006 of the free connecting portion 1530, the mounting portion 1006
Since the ventilation passages 1007 are arranged on both sides of the suction port 1000, the overall height of the suction main body 1000 can be reduced to achieve a compact configuration. In addition, a flexible connecting portion 15 that requires rigidity and airtightness is required.
Since the mounting of 30 is solved by mounting the rear upper cover 1003, the number of parts can be reduced, and the assemblability can be improved. Also, the rear upper cover 1003
The portion other than the portion covered by the cover can be opened only by removing the front upper cover 1002, and the rotating brush 1011 can be easily removed, so that the disassembly and cleaning properties can be improved. In addition, assembling can be completed only by simply attaching the rotating brush 1011 and attaching the front upper cover 1002, so that handling can be improved.

Next, the detailed structure of the mouthpiece 550 will be described in detail with reference to FIGS. 6 is an external perspective view, FIG. 7 is an external side view, FIG. 8 is an external rear view, FIG. 9 is a bottom view, FIG. 10 is an explanatory view of an opening / closing lever, FIG. 11 is a sectional view of a main part of a sliding member, and FIG. FIG. 13 is an explanatory view of a wheel elevating mechanism, FIG. 14 is another applied explanatory view of a wheel, FIG. 15 is a cross-sectional view of a first rotating shaft, and FIGS. FIG. 18 is a lock mechanism diagram of the first rotating shaft.

First, in FIG. 6, the mouthpiece 5 of this embodiment is shown.
Reference numeral 50 designates a thin mouth and a suction body 100.
The front portion of the “0” protrudes to both sides, and the attachment portion 1006 of the free connecting portion 1530 disposed at the center of the rear portion has a “substantially T-shaped” planar shape protruding rearward. And, by making the entire upper surface into a shape having a round shape as a main body, the cleanability is improved, and by making each corner portion into a round shape, consideration is given not to scratch furniture or the like.

Further, as shown in FIGS. 7, 4 and 5,
The front end of the suction main body 1000 has a substantially wedge-shaped side surface with a convex arcuate upper surface, so that an air flow is introduced into the bellmouth-shaped notch 1030 through the suction chamber 1005 while securing the rotation range of the rotating brush 1011. The shape is easy and the whole is compact.

Returning to FIG. 6, in this embodiment, the bumper portion 1033 is formed by connecting the suction body 550 to furniture or the like, that is, the both sides in the longitudinal direction including four corners protruding on both sides of the suction main body 1000. And a belt-like and convex shape continuously formed on a part of the front part and the rear face. And the sliding member 1100 is continuously provided in the bumper part 1033. As shown in FIG. 11 (a), the sliding member 1100 is a brush 11 having a short bristle made of a nylon material.
01 on the brush stand 1102, and the bumper portion 1033
The brush 1101 is fixed to the bumper portion 1033 by inserting the brush table 1020 into the groove portion 1021 formed at the bottom. Here, the brush stand 1102 is connected to the bumper unit 1.
The number of components can be reduced by attaching a member having the same length as 033 to the groove portion 1021, but the molding may be facilitated by dividing and attaching. Further, the brush stand 1102 may be integrally formed with the bumper portion 1033 to improve the assemblability, but the cost of the equipment may be reduced by bonding or press-fitting using elasticity of a resin material. .

Further, the purpose of adopting the sliding member 1100 is to make it easy to move the front portion of the suction body 550 in the vertically long moving direction V1 (see FIG. 1) along the wall surface or the like. Therefore, the sliding member 1100 only needs to improve the sliding. For example, as shown in FIG. 11B, a plurality of protrusions 1034 on the bumper portion or along the longitudinal direction of the mouthpiece 550 are provided. A plurality of projecting strips may be formed.

In this embodiment, since the projection 1034 is formed integrally with the bumper portion 1033, the material is made of a resin material having high hardness, and a shock is applied to the inside of the bumper portion 1033 to reduce scratches and shock. A relaxing space 1035 is formed. Further, only the protrusions 1034 are made of a material having high hardness such as fine beads or wire rods.
By embedding at a predetermined position of the bumper portion 1033 made of a material having a low hardness that is generally adopted,
It is also possible to make the structure resistant to impact while improving the slip. In this case, the protrusion 1034 may be embedded in the bumper portion 1033 during molding, or may be attached via a pedestal as shown in FIG.

As another sliding member 1100, for example, a roller 1103 may be employed as shown in FIG. In this case, it may be attached to the bumper part 1033, or may be attached directly to the lower case 1001. In a better case, by providing an elastic material such as rubber or velvet around the roller 1103 or by using a tire, it is possible to improve the slip and obtain an effect as a bumper function. In this case, the mounting position of the roller 1103 may be provided so as to protrude forward at least on both sides of the front part of the mouthpiece 550 as shown in FIG. A more favorable one can improve slipperiness by being attached to the corners on both front sides of the mouthpiece 550. Further, as shown in FIG. 7A, in addition to the corners on both sides of the front part of the mouthpiece 550,
By providing it at the center of the front part, it is possible to easily absorb irregularities on the wall surface. The better one is the suction body 100
By providing four corners projecting on both sides of 0 and the center of the front part, mobility can be enhanced. The arrangement of the sliding member 1100 may be the same as that of the embodiment shown in FIG.

In addition, in the embodiment shown in FIG. 6, the brush 1101 is adopted as the sliding member 1100. However, the manufacturing cost may be reduced by attaching a velvet or a fiber material by bonding. The bumper function can be further improved by adopting a thicker sliding material 1100.

In the embodiment shown in FIG. 6, the sliding member 1100 is provided around the bumper portion 1033 as a separate member to improve the slip while providing a shock absorbing function. By forming a thickened portion and providing the sliding member 1100 directly or integrally on the thickened portion, the rigidity of the suction opening body 1000 is increased, and the sliding member 1100 is provided with a shock absorbing function of preventing damage to furniture and the like. In addition, it is not necessary to provide the bumper portion 1033 made of an elastic material such as rubber or soft resin as another part.

Next, returning to FIG. 6, in this embodiment, the size of the suction body 550 is set to 250 mm, the depth D1 of the suction main body, and the roots protruding on both sides in a state where the free connecting portion 1530 is extended. Depth D2 of part, depth D of both ends
3 are set to 137 mm, 96 mm, and 87 mm, respectively. In this embodiment, the length D4 of the connecting portion 1507 is used.
Is set to 50 mm, and the depth when attached to the connection pipe 400 is set to 254 mm. Further, as shown in FIGS. 6 and 9, the height of the mouthpiece main body 1000 is set to 61 mm, the width W is set to 280 mm, and the width W1 of the mouthpiece 1010 is set to 216 mm.

Next, referring to FIGS. 7 and 8, the mouthpiece 550 according to this embodiment has a rounded flat upper surface to make it easy to wipe off dirt on the upper surface and a front portion constituting the upper surface. The structure in which the upper cover 1002 can be easily removed improves cleanability. The front upper cover 1002 has a structure in which sinks and weld lines during manufacturing are hardly generated while maintaining strength.

In order to realize this effect, the mouthpiece 550 according to the present embodiment is provided with the attachment portion 100 of the flexible connection portion 1530.
The upper surface of the suction body 550 other than 6 is covered with a front upper cover 1002, and an opening / closing lever 1022 for detachably attaching the front upper cover 1002 is provided in the front upper cover mounting portion 1031. This structure will be described with reference to FIG.

As described with reference to FIG. 2, the mouthpiece 550 according to this embodiment is provided with front upper cover mounting portions 1031 for fixing the front upper cover 1002 on both sides of the rear upper cover 1003. The front upper cover 1002 is detachably attached via a pair of open / close levers 1022 provided on the cover attachment portion 1031 and sliding in the horizontal direction.
As shown in FIG. 10A, the front upper cover 1002 has a notch 103 at a portion corresponding to the opening / closing lever 1022.
6 is formed, and a lower end portion 103 is formed inside the notch portion 1036.
An attachment rib 1037 having an L-shape 7a is provided. The opening / closing lever 1022 has an L-shaped lower end portion 103.
7a is attached to the front upper cover attaching portion 1031 so as to be slidable in the horizontal direction. For this reason,
The opening / closing lever 1022 can be fixed at a position where the opening / closing lever 1022 overlaps with the mounting rib 1037, and the front upper cover 1002 can be removed at a position where the opening / closing lever 1022 does not overlap. According to the structure of the present embodiment, the opening / closing lever 102
2 is not required to be provided on the front upper cover 1002, so there is no need to form a rib or the like necessary for providing the opening / closing lever 1022.

As shown in FIG. 6, the front upper cover 1
Vent holes 1016 are provided on both sides behind the upper surface of 002. The ventilation hole 1016 is composed of a plurality of slits 1016a divided along the longitudinal direction of the mouthpiece 550. The slits 1016a are formed in a concave shape so as to be one step lower from the surroundings, and a punching shape is formed in the concave shape. Is integrally formed with the front upper cover 1002.
According to the structure of the ventilation hole 1016, the punching-shaped opening which becomes weaker in strength is formed one step lower than the surroundings and is divided into a plurality of slits, so that the strength of the front upper cover 1002 itself is reduced. In addition, the strength of the punched opening against impact can be increased.

Further, the front upper cover 1002 has, on both side surfaces, a handle recess 10 for removing the front upper cover 1002.
23 are provided.

According to the present embodiment, since the open / close lever 1022 is separated from the front upper cover 1002, the front upper cover 1002 can have a simple shape. Can be reduced. In addition, this simple shape makes the front upper cover 10
02 can be improved in lightness, cleanability, and design. In addition, the opening / closing lever 1022 is provided on the rear surface that is hard to receive an impact, and has a structure that is hardly damaged by external force even if it comes into contact with furniture or the like during cleaning.

Further, the front upper cover 1002 is
By providing 016, the strength can be improved. Moreover, the front upper cover 1002 can be easily attached and detached.
By providing the ventilation holes 1016 in the through hole, the front upper cover 1002 can be removed, and the easily-dirty ventilation holes 1016 can be washed from the front and the back, so that the cleaning performance can be improved.

The suction body 550 (front upper cover 100)
Since the handle concave portion 1023 is provided on the side of 2), the index finger or the middle finger is inserted into the handle concave portion 1023, the thumb is hooked on the open / close lever 1022, and the open / close lever 1
022 can be slid outward to disengage, and pinched with the thumb and forefinger (middle finger), and the front upper cover 1002 can be easily removed from the mouthpiece 550.

Further, the opening / closing lever 1 which is liable to accumulate dirt is provided.
Since 022 and the handle concave portion 1023 are provided on the vertical surface, dirt hardly accumulates. Moreover, the front upper cover 100
Since the front upper cover 1002 and the rear upper cover 1003 have a continuous flat shape on the upper surface of the attached suction body 550, dirt can be easily wiped off.

In FIG. 9, the lower case 1001 moves the whole suction body 550 in the horizontal movement direction V2 and the vertical movement direction V1, and at the same time, keeps a certain distance between the bottom surface of the suction body 550 and the cleaning surface. A plurality of wheels 1200 are arranged to keep. The wheel 1200 has a mouthpiece 550
Pair of front wheels 1261 arranged on both sides at the front of the bottom of the vehicle
And a pair of rear wheels 1262 disposed behind the rear wheel 1262, a rearmost wheel 1263 for receiving pressure against a cleaning surface during use of the electric vacuum cleaner 1, and a left-right direction V1.
A pair of in-and-out wheels 1264 that are used to protrude from the bottom surface when being moved to a position are provided.

Here, the front wheel 1261 and the rear wheel 1262
Are arranged at positions facing each other. That is, a pair of the front wheel 1261 and the rear wheel 12
62 is located at the lower suction port 1010 of the turbine 1012.
The gap between the floor and the cleaning floor is kept constant.
Furthermore, a large rear wheel 1263 is provided at the lower part of the universal connecting portion 1530 that receives the force of the handle 300 at hand,
By increasing the rigidity and running performance, even if a large force is received from the hand handle 300, the force is received by the rearmost wheel 1203,
The clearance with the cleaning floor is kept constant.

As described above, the mouthpiece 550 according to the present embodiment is characterized in that it is moved in the vertically long movement direction V1 in addition to the movement in the horizontally long movement direction V2. In this embodiment, a pair of retractable wheels 1264 are provided below the second rotating shaft 1355 as shown in FIG. Each of the front wheel 1261, the rear wheel 1262, and the rearmost wheel 1263 has an axle in a direction parallel to the longitudinal direction of the mouthpiece 550, and is a wheel rotatable in the horizontally long moving direction V2 of the mouthpiece 550. However, the appearing / retracting wheel 1264 has a different axle direction by 90 degrees from the three wheels, and is a wheel rotatable in the vertically long moving direction V1 of the mouthpiece 550. Further, the haunting wheel 1264
Is housed inside the mouthpiece 550 at an angle that does not twist the hand handle 300 up to 90 degrees as shown in FIGS. 20A and 20B, and FIG. ) As shown in the figure, the handle is twisted by 90 degrees, the mouthpiece 550 is turned by 90 degrees, and the mouthpiece 550 projects in a state of being moved in the vertically long moving direction V1. This structure will be described in detail with reference to FIG.

First, as shown in FIG. 13A, in this embodiment, a projection 1540 is provided on each of a pair of sliding surfaces 1539 formed around the rotation shaft 1503 of the second rotation shaft 1355. ing. This protrusion 1540
(C) As shown in the drawing, the lower arm portion 1531 is formed so that the angle in the height direction Y is 90 degrees and located below. On the other hand, the lower case 100 below the rotation shaft 1503
An opening 1541 is formed in 1, and a retractable wheel 1264 is attached to the opening 1541. Haunting wheel 126
Reference numeral 4 denotes a wheel base 1266 having a rotation support shaft as a rotation shaft 1265, a wheel 1267 attached to the wheel base 1266, and a wheel base 1266 attached to the rotation shaft 1265 to store the wheel base 1266 inside the mouthpiece 550. Spring 1 such as a coil spring, a torsion spring, or a leaf spring
268.

Then, the projection 1540 and the wheel 1
The position and size of the H.264 are set so that the hammer wheel 1264 projects at a position where the angle of the lower arm 1531 in the height direction Y is 90 degrees. In this embodiment, the sliding surface 1
Although the protrusion 1540 is provided on the 539, the protrusion 1540 may be provided separately.

According to this embodiment, (a)
(B) As shown in the drawing, a state in which the angle of the lower arm 1531 in the height direction Y does not reach 90 degrees, that is, the hand handle 300
When the twist angle P1 is not twisted by 90 degrees, since the retractable wheel 1264 is housed inside the mouthpiece 550, the front wheel 1261, the rear wheel 1262, and the rear wheel 12
The suction body 550 can be smoothly moved in the horizontally long form movement direction V2 via 63.

On the other hand, the twist angle P of the handle 300
In the state where 1 is twisted 90 degrees, the angle of the lower arm 1531 in the height direction Y becomes 90 degrees as shown in FIG.
The retractable wheel 1264 projects from the suction body 550 and the rear wheel 1
262 and the rearmost wheel 1263 are floated off the floor (the rearmost wheel 1263 is floated t0 from the floor). Therefore, the retractable wheel 1264 receives the force of the handle 300 most, so that the mouthpiece 550 can be easily moved in the vertical movement direction V1 via the retractable wheel 1264 and the front wheel 1261.

Next, in this embodiment, the front wheel 1261, the rear wheel 1262, and the rearmost wheel 1263 are formed of a material that easily slides, and the contact surface with the floor surface is subjected to gloss processing, and the shape is changed to a drum shape. And For this reason, since it is easy to slide also in the axle direction or the diagonal direction, the turning property of the suction body 550 and the running property in the vertically long moving direction V1 are improved.

Further, the turning property and the vertically moving direction V1
It is preferable to provide a sliding member 1210 around the wheel 1267a in order to improve the traveling performance of the vehicle. This structure will be described with reference to FIG. The wheel 1267a includes a rotating shaft 1211 like a normal wheel, and forms a concave portion 1212 to which the sliding member 1210 is attached on a peripheral side surface serving as a contact surface with a floor surface,
On both end surfaces, a C-cut surface (chamfered portion) 1213 is formed to improve the movement of obstacles in the left-right direction V1. The sliding member 1210 is similar to the sliding member 1100 provided around the mouthpiece 550, and a bristle 1214 having a short bristle of nylon material is planted on a brush base 1215, and the sliding member 1210 is formed in a concave portion 1212 formed in the wheel 1200. By inserting the brush stand 1215, the brush 1214 is fixed to the wheel 1267a. In this embodiment, the brush stand 1215 is attached by dividing the ring-shaped thing into two and sandwiching the wheel 1267a. This mounting method is the same as that of the sliding member 1100. And the wheel 1267
a is press-fitted into a bearing of a wheel storage portion formed at the predetermined position on the bottom surface of the mouthpiece 550 and attached.

Returning to FIG. 9, the embodiment shown in FIG. 9 employs a wheel 1267 having no peripheral sliding member 1210, but a wheel 126 having a peripheral sliding member 1210.
By employing 7a, the turning property of the mouthpiece 550 can be further improved. In particular, by adopting the same configuration as that of the wheel 1267a, the front wheel 1261 that moves the mouthpiece 550 in the longitudinal movement direction V1 in pair with the haunting wheel 1264 improves the mobility in the longitudinal movement direction V1. It can be significantly improved.

In this embodiment, the wheels 1200 are used to move the vehicle in the vertically long moving direction V1 in addition to the movement in the horizontally long moving direction V2. However, the present invention is not limited to this. For example, a free wheel may be used, or a projection may be formed at a predetermined position of the mouthpiece 550 where the wheel 1200 is arranged, and the sliding member 1210 may be provided on the projection.

As described above, the suction body 55 according to this embodiment
0, the twisting action P1 of the handle 300
By having the hammer wheel 1264 protruding by
For example, a vertically long moving direction V1 for moving along a wall surface
In the movement of, the mouthpiece 550 can be smoothly moved in the vertically long moving direction V1 by the hammering wheel 1264 and the front wheel 1261.

On the other hand, the horizontal moving direction V of the mouthpiece 550
In 2, the retractable wheels 1264 are housed in the mouthpiece 550, so that the front wheels 1261 and the rear wheels 1262 are left and right, respectively, and the rear wheels 1263 are disposed at the rear central portion. According to the five-point wheel configuration, the traveling performance in the horizontally long moving direction V2 is excellent, and further, the mouthpiece can be stably supported in oblique movement and turning performance. In particular, the rearmost wheel 1263 is used when the free connecting portion 153 is used.
Because it is located closer to the user than the 0 rotation axis 1503,
The movement in the horizontally long moving direction V2, in particular, the lifting of the distal end of the mouthpiece 550 when retracting can be reduced. Further, since the rotating shaft 1503 of the free connecting portion 1530 is provided in the five-point wheel, the suction body 5 is provided via the handle 300 at hand.
Even if the 50 is turned or rotated, the inclination (lift of the corner) of the mouthpiece 550 can be reduced. Moreover, since each wheel 1200 is arranged at a corner of the mouthpiece 550, it is possible to reduce the possibility of the wheel 1200 being caught during rotation.

Next, a dust guide means 1300 is provided at the front of the suction port 1010 provided on the bottom surface of the suction body 550, and a pressure control plate 1301 is provided at the rear of the suction port 1010. The guide means 1300 includes a flat portion 130 formed between the mouth 1010 and the tip of the mouth body 550.
2 has a function of efficiently sucking dust that is difficult to suck. For example, in a conventional mouthpiece, when the tip of the mouthpiece is brought into contact with a wall surface, the flat portion 1302
Dust present on the floor below the floor can only be sucked off by the force of the sucked air flow.

The guide means 1300 according to this embodiment
Is for efficiently sucking the dust which is difficult to suck. In this embodiment, in order to solve the above problem,
A brush row 1311 in which bundles 1310 of brushes made of long hair, such as nylon, are arranged so as to form a row in the front-rear direction,
A plurality of guides 1300 are arranged in the left and right direction on the guide 302. In this embodiment, as shown in FIG. 9, the brush rows 1311 are bilaterally symmetric about the center, and the brush rows 1311 are arranged obliquely so as to converge on the suction port 1010 side. The brush bundle 1310 is directly connected to the flat portion 1.
The brush row 1311 may be implanted in the brush base, or the brush row 1311 may be implanted as a group on a brush base, and the brush base may be embedded in the flat portion 1302 and attached.

According to the guide means 1300, the air flow path 1312 is formed between the brush rows 1311. Therefore, the flow of the air flow is accelerated through the flow path 1312 to facilitate the suction of dust. be able to. Also, the suction body 55
By moving 0, the dust on the flat portion 1302 is swept up by the bunch 1310 of the brushes and can be easily sucked. That is, the flat portion 1302
By moving the suction body 550 through the suction body 550, the dust can be swept up by the bunch 1310 of the brushes and guided to the suction mouth 1010 by the flow path 1312.

In this embodiment, the brush bundle 1310
As shown in FIG. 13 (b), the length of the
0 in the horizontal direction of movement V2, that is, the front wheel 1261, the rear wheel 1262, and the rear wheel 1
In a state where the vehicle runs on the five-point wheel 263, the bundle of brushes 1310
Is set to such an extent that the tip of the is in contact with the floor. In this state, the tip of the brush bundle 1310 appropriately brushes the floor surface, and the cleaning effect can be improved by the above-described operation and effect.

On the other hand, the mouthpiece 550 is moved vertically by the front wheel 1261 and the retractable wheel 1264 as shown in FIG.
In the state of moving to 1, the retractable wheel 1264 protrudes downward, and the mouthpiece 550 leans toward the front wheel 1261 to bend forward, so that the tip of the brush bundle 1310 is strongly pressed against the floor surface. For this reason, the dust on the flat portion 1302 is scraped up by the brush bundle 1310 more strongly than the state shown in FIG. Moreover, since the guide means 1300 is strongly pressed against the floor, the guide means 1300 also supports the suction body 550 instead of the front wheel 1261.
The mobility of the 50 in the left-right direction V1 can be improved.

Note that the pressure control plate 1301 is
In step 312, the dust that has rushed out and jumps backward is received and sucked into the suction port 1010 again. This pressure control plate 1301 is in the state shown in FIG.
By setting the length to protrude from the bottom surface such that the tip is in contact with the floor surface, it is possible to improve the hermeticity of the lower part of the mouthpiece 100.

Next, referring to FIGS. 15 to 18, the universal connecting portion 1 will be described.
530 will be described in detail.

First, FIG. 15A is a longitudinal sectional view of the first rotating shaft, FIG. 15B is a transverse sectional view, and FIG. 15C is an external view of the lock ring. First rotating shaft 1533 of this embodiment
Utilizing the elasticity of a resin material, a rotary shaft portion 1533a protruding in a tubular shape above one end of the lower arm portion 1531 and a tubular concave rotary bearing portion 1533b below one end of the upper arm portion 1532. Insert and assemble.

Further, in this embodiment, there is provided a lock mechanism 1516 for temporarily locking the rotation in the left-right direction X at a position of 90 degrees. For example, in this embodiment, a groove 1543 is formed on the sliding surfaces 1542a and 1542b between the rotary shaft portion 1533a and the rotary bearing portion 1533b, and the groove 1543 is formed.
543 is provided with a lock ring 1534 shown in FIG. The lock ring 1534 is formed with a leaf spring function so that a part of the ring is opened and tends to spread in both directions indicated by arrows. Further, the lock ring 1
534 is provided with a mounting portion 1544 at the center of the ring,
Protrusions 154 are provided at opposing positions on both sides of the
5a are formed.

Then, the lock ring 1534 is
(B) As shown in the figure, the groove 1543 is fixed to the rotating shaft portion 1533a side via the mounting portion 1544. Further, the groove 1543 on the side of the rotary bearing portion 1533b is provided with a pair of fittings with the protrusion 1545a at a position where the pipe axis of the upper arm 1532 (the center axis of the connection pipe 400) is orthogonal to the longitudinal direction of the mouthpiece 550. Recess 1545b is formed.

According to the lock mechanism 1516, the pipe axis of the upper arm 1532 (the central axis of the connection pipe 400) is connected to the suction body 55.
In the state orthogonal to the longitudinal direction of 0, since the rotation in the left-right direction X is fixed, the straightness of the mouthpiece 550 is improved, and the movement in the front-rear direction is facilitated. On the other hand, hand handle 300
When the mouthpiece 550 is to be rotated through the hole, the fitting between the protrusion 1545a and the recess 1545b is released.
The lock mechanism 1516 can be released with a small force.

In this embodiment, in order to enhance the straightness of the mouthpiece 550, a pair of the projections 1545a and the recesses 1545b are provided.
May be provided at a high frequency (45 degrees, 90 degrees, etc.).

FIG. 16 shows another fitting structure of the first rotating shaft 1533. In this embodiment, a sliding surface 154 between the rotating shaft portion 1533a and the rotating bearing portion 1533b is provided.
2a and 1542b, grooves 1546a and 1546b are formed.
546 is provided with a fixing ring 1547 shown in FIG. The fixing ring 1547 is formed with a spring action so that a part of the ring is opened and tends to spread in both side directions indicated by arrows. Further, the fixing ring 1547
Is provided with a mounting projection 1548 at the end of the ring, and the mounting projection 1547 is fixed to the rotating shaft 1533a.
47 so as not to impair the spring action.

According to this structure, if the rotary bearing portion 1533b is inserted into the rotary shaft portion 1533a in a state where the fixing ring 1547 is embedded in the groove 1546a of the rotary shaft portion 1533a, the assembly is easy and the assembly is completed. In the state, the fixing ring 1547 is connected to the rotary bearing 153.
3b, the first rotating shaft 1533
The rotation shaft portion 1533a and the rotation bearing portion 1533b are not disengaged from each other without impairing the rotation performance of the rotary shaft.

FIG. 17 shows another fitting structure of the first rotating shaft 1533. In this embodiment, the rotary shaft portion 1533a and the rotary bearing portion 1533b are detachably attached via a detachable fixed piece 1549.

In this embodiment, the rotating shaft 1533a
Are provided with two ring-shaped projections 1550 on the sliding surface 1542a of the
Form one. On the other hand, an opening window 1552 is formed in the rotary bearing portion 1533b at a position corresponding to the concave portion 1551. The two opening windows 1552 are provided at opposing positions in consideration of the rotation of the first rotation shaft 1533.

Then, the opening window 1552 and the recess 1
A fixed piece 1549 is arranged so as to straddle 551. The fixing piece 1549 is detachably formed from the opening window 1552 by utilizing the elastic action of the resin material.
For example, in this embodiment, the fixing piece 1549 is composed of an arc-shaped portion 1549a conforming to the shape of the concave portion 1551, and a main body portion 1549b whose outer shape is adapted to the opening window 1552 and whose inside is robbed. When the fixing piece 1549 is attached, the opening window 155
2 to attach and remove
A jig is inserted into the hole provided in b, and the tip side of the main body 1549b is pulled out by utilizing the elasticity of the resin material. The size of the fixed piece 1549 and the size of the concave portion 1551 are set so that the first rotating shaft 1533 does not rattle and the rotation can be performed smoothly.

Further, in this embodiment, the fixed piece 154
9 and the concave portion 1551,
a and a lock mechanism 1516 comprising a recess 1545b. For example, in this embodiment, the main body 154
9b is provided with a projection 1545a at the tip thereof,
By providing the concave portion 1545b at a predetermined position of the 51, the locking and unlocking of the protrusion 1545a and the concave portion 1545b can be smoothly performed using the elastic force of the resin material of the fixing piece 1549.

According to this structure, the first rotating shaft 1533
Is easy to disassemble by removing the fixing piece 1549, so that maintenance and cleaning can be improved. In addition, the first rotating shaft 1533 can be locked at a predetermined position with a simple structure.

In the above embodiment, the lock mechanism 151 is used.
Although the fixing piece 1549 having 6 is adopted, the locking mechanism 1516 and the fixing piece 1549 may be separated.

Next, the lock mechanism 1553 for the second rotating shaft will be described with reference to FIG. 18, (a) is an external view of the lower arm 1531, and (b) and (c) are cross-sectional views of main parts of the mouthpiece 550 in a state where the handle 300 is stood upright.

In this embodiment, the suction body 550 and the connecting pipe 4
00 and the handle 300 are connected to each other.
The upright storage such that the hand handle 300 is positioned above 50 is enabled. In this embodiment, a lock mechanism 1553 is provided on the second rotating shaft 1535 in order to maintain this storage posture. The lock mechanism 1553 includes a projection 1554 provided on a sliding surface 1539 of the second rotating shaft 1355 and a bearing 1018 of the lower case 1001.
And a concave portion 1038 provided on the sliding surface of. The protrusion 1554 has a U-shaped cut in a part of the sliding surface 1539, and is provided at a free end thereof.
So as not to hinder the rotation of the camera. The locking mechanism 1553 locks the lower arm 1531 so that the angle in the height direction Y is 90 degrees.
The arrangement of the protrusion 1554 and the recess 1038 is set.

With this structure, as shown in FIG.
In the upright storage position in which the hand handle 300 is positioned above the mouthpiece 550, the lock mechanism 1553 of the second rotation shaft 1535 and the lock mechanism 1 of the first rotation shaft 1533
Since 516 is in the locked state, the upright storage posture can be maintained. In addition, when the lock mechanism 1553 of the second rotating shaft 1535 is in the locked state, the retractable wheel 156
Since the mouthpiece 550 projects forward and the mouthpiece 550 assumes a forward leaning posture, it can be balanced with the weight of the suction hose 200 attached to the handle 300 at hand, so that a stable posture can be maintained.

Further, the suction body 550 is set in the vertically long moving direction V.
Since the second rotating shaft 1535 is in the locked state even in the state of being moved to 1, it is easy to maintain the angle of the twisting operation P1 of the hand handle 300 during this traveling. Note that, similarly to the lock mechanism 1516 of the first rotating shaft 1533, the lock mechanism 1553 may be set in the locked state at a frequently used angle.

In another application, the locking may be performed in a state where the angle of the lower arm 1531 in the height direction Y is 90 degrees or more. In this case, a convex rib (not shown) is provided before the concave portion 1038 and the projection portion 1554 are fitted to each other.
A sense of resistance is given before the lock state.
For this reason, when the angle of the twisting operation P1 of the hand handle 300 is set to 90 degrees, the rotation angle P2 of the suction body 550 is set to 90 degrees, and the suction body 550 is moved in the vertically long movement direction V1, the lock mechanism 1553 is used. It does not lock. On the other hand, when the angle of the twisting operation P1 is set to 90 degrees or more, or the angle of the lower arm portion 1531 in the height direction Y is set to 90 degrees or more, and the operation is performed beyond the resistance, the locked state is set. . In this way, when moving the mouthpiece 550 in the vertically long moving direction V1, the second rotating shaft 1535 does not enter the locked state, and can maintain a more stable posture in the upright storage posture. Further, in the storage position, it is not necessary to consider the operation of the suction body 550 in the vertically long moving direction V1. Therefore, the locked state can be set strongly, so that a more stable position can be obtained. In this case, the unlock is the suction body 5
What is necessary is just to release by stepping on 50 etc.

Next, an operation method of the vacuum cleaner 1 according to the present embodiment will be described with reference to FIGS.

In FIG. 19, first, in the vacuum cleaner 1 according to the present embodiment, the user holds the hand handle 30 in a standing posture.
By holding 0, the floor can be cleaned by operating the mouthpiece 550 via the connection pipe 400. At this time, a pair of large wheels 101 is attached to the vacuum cleaner main body 100 connected to the handle 300 via the suction hose 200.
And one free wheel 102, so that cleaning can be performed while moving. In general, the average height of a Japanese woman is 157 cm. However, if the user naturally holds the handle 300 and moves the suction body 550 back and forth through the connection pipe 400 for cleaning,
The vertical distance between the hand handle 300 and the floor is 78c.
m or less, cleaning can be performed without putting a burden on hands and arms. The angle is desirably set to the range of the most operated operation of the user, which is 45 degrees in the vertical direction. If the angle is 45 degrees or more, a burden is placed on the hands and arms.

Therefore, in the present embodiment, the length of the connecting pipe 400 can be set so that the angle of the connecting pipe 400 becomes 45 degrees. Since the handle portion 301 of the handle 300 is set at about 110 degrees, the user holding the handle portion 301 can easily move in the front-rear direction when the angle of the connection pipe 400 is 45 degrees. Can be. In addition, since the lower arm 1531 of the free connecting portion 1530 rotates in the height direction Y, the bottom surface of the mouth body 550 where the mouth 1010 is provided, even if the mouth body 550 moves in the horizontally long moving direction V2. The bottom surface of the body 550 does not rise from the floor surface. At this time, the rotation in the left-right direction X is performed by tilting the rotation axis of the upper arm 1532 in the left-right direction X by 45 degrees because the connection pipe 400 is tilted at 45 degrees.
It is difficult for the upper arm 1532 to rotate in the left-right direction X due to friction of the rotating shaft or the like. Even if the mouthpiece 550 is moved in the horizontally long moving direction V2, it is possible to reduce the displacement of the mouthpiece 550 in the left-right direction X. Further, in this embodiment, since the lock mechanism 1516 is provided on the first rotation shaft 1533, the straightness of the mouthpiece 550 can be further improved.

In addition, when the suction body 550 moves in the horizontally long moving direction V2, the wheel 1200 provided on the bottom portion is moved.
Middle, front wheel 1261, rear wheel 1262, and rear wheel 12
These wheels are supported by 63, and these wheels rotate around an axis parallel to the longitudinal direction of the mouthpiece 550, so that straightness can be improved. In particular, in this embodiment, the rearmost wheel 1263 is used to move the suction body 5 in the horizontally long moving direction V2.
Good straightness can be obtained by reducing the rising of the tip of the 50. Further, in this embodiment, the guide means 130
The dust on the floor can be swept up twice by the double brush 1214 and the rotating brush 1011 to improve the suction efficiency.

Here, in this embodiment, the lower arm 1531
The rotation of the connecting pipe 40 in the normal posture is performed by performing the rotation in the height direction Y with the
Although the straightness when 0 is 45 degrees is enhanced, the lower arm 1531 may rotate in the left-right direction X and the upper arm 1532 may rotate in the vertical direction Y.
In the reversing structure, the rotation operation of the mouthpiece 550 described later can be performed in the same manner as in the above-described embodiment, but the problem remains in the straightness. is there.

Referring to FIG. 20, in this embodiment, the direction (rotation P2) of the mouthpiece 550 is changed by the operation P1 of twisting the handle portion 301 of the hand handle 300.
Can be changed by linking to the 00 rotation. FIG.
Middle, (a) is a state in which the handle part 301 is straightened, (b) is a state in which the handle part 301 is twisted by 45 degrees, and (c) is a hand handle 300 and a mouth in which the handle part is twisted by 90 degrees. FIG. 14 is a state diagram of a body 550. In addition,
In FIG. 20, three angles are described for the sake of explanation, but the angle of the twisting operation of the hand handle 300 and the angle of the mouthpiece 550 are linked at any angle in the operation range.

First, in FIG. 11A, the twist angle of the handle portion 301 is 0 degree, and the extension of the connection pipe 400 is
It shows a state suitable for normal cleaning in a horizontally long form moving direction V2 orthogonal to the longitudinal direction of F.50.

On the other hand, as shown in FIG. 13B, when the handle portion 301 is twisted by 45 degrees, the direction of the mouthpiece 550 can be inclined by 45 degrees by the action of the free connecting portion 1530. In this state, the wheel 1200 of the mouthpiece 550 slides laterally, so that it is possible to perform a forward and backward movement while the mouthpiece 550 is tilted. For example, it is extremely effective when cleaning a narrow part with an obstacle in front. Also, by changing the direction of the suction body 550, the wheels 12
Since the direction of 00 is changed, it is easy to change the course of the suction body 550 as if turning the steering wheel of the automobile.

Further, as shown in FIG. 13C, when the handle portion 301 is twisted by 90 degrees, the direction of the mouthpiece 550 can be rotated by 90 degrees by the action of the free connecting portion 1530. In this state, the retractable wheels 12 of the suction body 550
64 protrudes from the bottom surface by the action of the free connecting portion 1530. Then, the mouthpiece 550 is connected to the retractable wheel 126.
4 and the front wheel 1261 support the suction body 550
Can be moved in the vertically long form movement direction V1 while being rotated by 90 degrees. This posture is extremely effective for cleaning the wall. This cleaning near the wall will be described with reference to FIG.

In FIG. 21, (a) shows the structure of the suction body 55.
0 shows a state in which the wall is cleaned just after being rotated by 90 degrees, and FIG. 2B shows a state in which the mouthpiece 550 is rotated close to 90 degrees so that the wall and the handle portion 301 are separated with a margin of shoulder width. Indicates a state where the wall is cleaned. Further, FIG. 7C is a diagram showing that the narrow clearance cleaning becomes more optimal by setting the rotation range in the left-right direction X wider than the operation range of 180 degrees. For example, by setting such a wide operation range, it is possible to reduce the possibility that the connection hose 400 or the suction hose 200 facing sideways when the handle portion 301 is twisted comes into contact with a wall or the like. Further, in the mouthpiece 550 according to this embodiment, in the use state of FIG. 21, the universal connection portion 1530 sets the angle of the second rotation shaft 1535 in the height direction Y to 90 degrees, so that the universal connection portion 15
30 fits within the projected area of the mouthpiece body 1000,
(C) The width HH in the drawing is very advantageous for cleaning a narrow gap. In addition, in this use state, the upper arm 1532 is located above the central portion of the suction body 550, so that "left and right blurring" of the suction mouth can be reduced and the traveling performance can be improved.

In the state shown in FIG. 21, the longitudinal side of the mouthpiece 550 is in contact with the wall surface.
The mouthpiece 550 can be moved in the vertically long moving direction V1. In this state, the sliding member 1100 provided around the suction body 550 can move the wall without damaging the wall surface, and furthermore, the guide means 1300 provided on the bottom portion allows the dust between the suction port 1010 and the wall surface to be removed. Can be efficiently sucked. Further, the guide means 1300
Since the mouthpiece 550 is tilted by the protrusion of the retractable wheel 1264 and strongly pressed against the floor, the cleaning efficiency can be improved.

Next, in FIG. 22, in the mouthpiece 550 according to this embodiment, the extension line of the central axis of the connecting pipe 400 is kept even if the handle 300 is lowered without twisting.
50 in a state perpendicular to the longitudinal direction (horizontal shape moving direction V
2), the entire bottom surface of the suction body 550 can be brought into close contact with the floor surface, so that the lower part of the furniture, such as a lower part, is excellent in cleaning performance. 22, (a) and (b) are a side view and a plan view in a use state of a conventional example, and (c) and (d) are a side view and a plan view in a use state of this embodiment.

As is clear from the comparison between FIGS. (A) and (c), according to the present embodiment, the lower handle 300 can be inserted into a lower clearance. Since the bent joint is employed, if the handle 300 is lowered, the bottom surface of the mouthpiece 550 will be lifted. In the conventional example, as shown in FIG. 2 (b), the joint H bent by the operation of twisting the hand handle 300 can be laid down to lower the overall height H. However, since the mouthpiece 550 faces obliquely, the depth of the clearance is increased. There remains a problem in the cleanability of garments. On the other hand, in the present embodiment, as shown in FIG. 11D, the side in the longitudinal direction of the mouthpiece 550 can be directly opposed to and tightly attached to the wall surface at the back of the gap without performing a twisting operation. Moreover,
The lock mechanism 1516 can maintain a state in which the extension of the central axis of the connection pipe 400 is orthogonal to the longitudinal direction of the mouthpiece 550.

Next, referring to FIGS. 23 and 24, the mouthpiece 550 of this embodiment is made compact by rotating the two rotation shafts of the free connecting portion 1530 singly or both. And the packing size can be reduced. FIG. 23 shows a state in which the angle of the second rotation shaft 1535 in the height direction Y is 0 degree and the rotation angle of the first rotation shaft 1533 in the left-right direction X is 180 degrees.
According to this posture, the upper arm portion 1532 is arranged at the center in the longitudinal direction of the mouthpiece main body 100 like a “chomage”.
FIG. 24 shows a state in which the angle of the second rotation shaft 1535 in the height direction Y is 90 degrees and the rotation angle of the first rotation shaft 1533 in the left-right direction X is 90 degrees. According to this posture, the upper arm portion 1532 is arranged on one side from the center in the longitudinal direction of the mouthpiece main body 100. Moreover, in the posture of FIG. 24, the free connecting portion 1530 fits within the projected area of the mouthpiece main body 1000, so that the installation area can be smaller than that of the posture of FIG.

As described above, in this embodiment, the two positions can be appropriately selected at the time of storing or packing to store or pack, so that the space for storing and packing can be reduced. Further, by setting the lock mechanism to be in the locked state in the above posture, the storage posture can be stabilized.

Next, the operation principle of the mouthpiece 550 according to this embodiment will be described with reference to FIG. The vacuum cleaner 1 according to this embodiment can transmit the rotation P1 of the twisting operation of the hand handle 300 to the rotation P2 of the mouthpiece main body 1000 as it is, and the operation principle can be described as follows, for example. .

(A) is a side view of the mouthpiece 550 conceptually showing a state A1 in which the angle of the elevation direction Y is 45 degrees and a state A2 in which the angle is 90 degrees. (D) FIG. FIG. 7 is a side view of a state A3 in which the angle in the elevation direction Y is reduced to about 30 degrees.

FIG. 13B is a plan view of the state A1 in which the angle of the elevation direction Y is 45 degrees, and a plan view of the mouthpiece 550 in the state A0 in which the angle of the twisting operation P1 is 90 degrees from the state A1.
(C) A state in which the angle of the twisting operation P1 is 90 degrees.
0 shows a front view of the mouthpiece 550 of FIG.

(A) In this figure, in this embodiment, the tube axis B1 of the parallel lower arm 1531 and the tube axis B of the upper arm 1532 are parallel.
The rotation surface (abutment rotation plane in the first rotation connection portion 1533) F1 of the first rotation shaft 1533 disposed between the first rotation shaft 151 and the second rotation shaft 1533 is disposed in parallel with the tube axes B1 and B2. And, according to the experimental verification of this embodiment, the hand handle 3
Rotation P1 of the twisting operation of 00 (rotation of the tube axis B2)
Is converted into the rotation P2 of the mouthpiece 550 about the intersection G1 where the extension line F2 passing through the rotation surface F1 intersects the floor surface. Therefore, the state A2 in which the angle of the height direction Y is 90 degrees
Then, since the intersection G2 where the extension line F2 passing through the rotation surface F1 intersects the floor is located directly below the handle 300 at hand,
The rotation of the twisting operation P1 of the handle 300 can be easily performed. On the other hand, as shown in FIG. In the state A3 in which the angle in the height direction Y is reduced, the intersection G
Since the distance 3 becomes far, the rotation P2 of the mouthpiece 550 cannot be obtained unless the twist rotation P1 is applied with a large force.
Moreover, as is apparent from the drawing, if the angle in the elevation direction Y is too small, the extension line F2 passing through the rotation surface F1
Does not intersect with the floor surface, so that the rotation P2 of the suction body 550
Can not get.

To clarify the operation principle of this embodiment, the first state A1 and the last state A0 of the rotation operation are changed by rotating and moving the handle 300 side with the suction body 550 fixed. Compare. First, (a)
(B) As shown in the figure, in the first state A1,
Intersection G where the extension line F2 passing through the rotation surface F1 intersects the floor surface
1 is set substantially at the center of the mouthpiece 550. But,
(B) As shown in FIG.
Is added to the final state A0 after the twisting operation P1 is added, the intersection G0 where the extension line F2 passing through the rotation surface F1 intersects the floor surface is set on one side in the longitudinal direction of the mouthpiece 550.
That is, in a normal operation state, the hand handle 300
Since it is operated at a predetermined position by the user, the mouthpiece 5
The rotation P2 of 50 is the intersection G1 which is the center of the rotation P2.
Is rotated while moving to G0. More specifically, when the twisting action P1 is applied to the handle 300 in the direction of the arrow E1, the suction body 1000, which is originally intended to rotate according to the twisting action P1, is prevented from rotating by the floor surface. Therefore, the first rotation shaft 153
3 operates so as to rotate while tilting the rotation surface F1 and escape in the direction of the arrow E2. On the other hand, the second rotation shaft 153
5 operates so as to receive the twisting operation P1 on the entire bottom surface of the mouthpiece 550, and follows and interlocks with the first rotating shaft 1533 that rotates while tilting the rotating surface F1, and gradually rotates, that is, The operation is performed to increase the angle in the height direction Y. As a result, the mouthpiece 550 rotates in the direction of the arrow E3 while changing the center position of the rotation P2 from G1 to G0.

(Second Embodiment) FIGS. 26 to 28 show another embodiment of the vacuum cleaner according to the present invention. FIG.
FIG. 27 is a sectional view of the mouthpiece, FIG. 27 is a use state diagram, and FIG. In the description, the same or similar components as those of the above-described embodiment are denoted by the same reference numerals,
A duplicate description will be omitted.

The mouthpiece 560 according to this embodiment is the same as the mouthpiece 550 according to the first embodiment and the first rotating shaft 1533.
Is different in that the rotating surface F1 is inclined, and other structures are substantially the same. According to the mouthpiece 560, the hand handle 3
The rotation angle of the rotation P2 of the mouthpiece 560 can be larger than the rotation angle of the twisting operation P1 of 00.

In FIG. 26, a mouthpiece 560 has a tube axis B1 of a lower arm 1531 and a tube axis B2 of an upper arm 1532, which are parallel to each other.
Between the rotation surface F1 of the first rotation shaft 1533
Is formed such that the rotation surface F1 is inclined at an angle of Θ0 so that the tip side of the upper arm 1532 is high and the back is low. According to this embodiment, the first rotating shaft 153
3 is an inclined rotating surface F1, the first rotating shaft 1
Since the center of rotation of 533 is oblique, the conveyance path of the upper arm 1532 and the conveyance path of the lower arm 1531 can be continued on an oblique conveyance path, so that the entire conveyance path of the universal connection portion 1530 is largely bent. Since they can be continued gently without any noise, dust clogging and noise can be reduced. In addition, as described above, the rotation P2 of the mouthpiece 560 can be increased by the rotation of the small twisting operation P1.

That is, as shown in FIG. 27A, in this embodiment, the twist angle of the handle portion 301 is 0 degree, and the extension of the center line of the connecting pipe is orthogonal to the longitudinal direction of the mouthpiece 560. From a state suitable for normal cleaning in the horizontally long moving mode V2, as shown in FIG.
Without rotating the twisting action P1 of the suction body 5 by 90 degrees.
The rotation P2 of 60 can be set to 90 degrees. Therefore, the mouthpiece 560 can be largely moved by a small movement of the handle at hand. This operation principle will be described with reference to FIG.

In FIG. 28, (a) shows the height direction Y
FIG. 5B is a side view of the mouthpiece 560 conceptually showing a state A1 in which the angle is 45 degrees and a state A2 in which the angle is 90 degrees, and FIG.
The state A1 in which the angle of the elevation direction Y is 45 degrees, and the state A1
A plan view of the mouthpiece 560 in a state A0 in which the angle of the twisting action P1 is 90 degrees from the twisting action P1 is shown in FIG.
Is a front view of the mouthpiece 560 in a state A0 in which the angle is 90 degrees, and (d) is a partially enlarged view of (b).

(A) In FIG.
Similarly to the mouthpiece 550 of the first embodiment, according to the experimental verification, the rotation 60 of the twisting operation of the hand handle 300 (the rotation of the tube axis B2) is an extension line passing through the rotation surface F1. The rotation is converted into the rotation P2 of the mouthpiece 560 about the intersection G1 at which F2 intersects the floor. However, the difference from the first embodiment is that the rotation surface F1 is inclined.
Extension line F passing through the rotation surface F1 more than in the first embodiment.
The intersection G1 where 2 intersects the floor surface is farther. Therefore, in the state A2 in which the angle of the elevation direction Y is 90 degrees, the rotation surface F
1, an intersection G2 where the extension line F2 intersects the floor surface is located forward of immediately below the hand handle 300,
If you do not make 1 a very large inclination, the hand handle 30
The rotation of the zero twisting operation P1 can be easily performed. Depending on the angle Θ0, the intersection G2 can be arranged directly below the tube axis B2.

On the other hand, when the angle in the elevation direction Y is small, the angle at which the extension line F2 passing through the rotation surface F1 does not intersect with the floor surface is greater than in the first embodiment, so that the angle in the elevation direction Y is small. It is suitable for places where the work is frequently performed in a posture with a large angle.

In this embodiment, similarly to the first embodiment, by fixing the mouthpiece 560 and rotating / moving the handle 300 side, the first state A1 of the rotation operation and the final state A0 are obtained. Is compared. First, as shown in FIGS. 7A and 7B, in the first state A1, the rotation surface F1
G1 where the extension line F2 passing through the floor intersects the floor surface is the suction body 56
Set to the front of 0. However, as shown in (b) and (c), when the hand handle 300 is moved to the final state A0 by applying the twisting operation P1, the intersection G0 at which the extension line F2 passing through the rotation surface F1 intersects the floor surface becomes It is set on one side in the longitudinal direction of the mouthpiece 550. That is, the basic operation principle of this embodiment is the same as that of the first embodiment. However, a major feature of the mouthpiece 560 is that, in the final state A0, the angle of the hand handle 300 in the left-right direction X is 90 degrees or more, as is apparent from FIG.
In the normal operation state, the hand handle 300 is operated at a predetermined position by the user, and the rotation P2 of the mouthpiece 560 may be in the state shown by the dotted line. If rotated 90 degrees, mouthpiece 560 will rotate too much. That is, the rotation P of the suction body 560 can be performed without rotating the twisting operation P1 by 90 degrees.
2 can be 90 degrees.

The point that the twisting operation P1 is enlarged to the rotation P2 is that, as shown in FIG.
Is inclined at an angle of Θ1. As is clear from the comparison between the diagrams (a) and (b), the angle Θ1 is a point at which the angle Θ1 is 0 degree in the state A2 in which the hand handle 300 is erected, but becomes larger in the state A0. . That is, in the twisting operation P1, performing the twisting operation P1 at a lower position than the twisting operation P1 of the hand handle 300 at a higher position can cause the suction body 560 to operate larger with a smaller twisting operation P1.
The same effect as described above can be obtained by increasing the angle of the rotation surface F1.

(Third Embodiment) FIGS. 29 to 45 show another embodiment of the vacuum cleaner according to the present invention.

First, the outline of this embodiment will be described with reference to FIG. 29 showing an external perspective view of a vacuum cleaner. In addition,
In the description, the same or similar components as those of the above-described embodiment are denoted by the same reference numerals, and duplicate description will be omitted.

In FIG. 29, a vacuum cleaner generally indicated by reference numeral 1 is a vacuum cleaner main body 100 provided with a blower (not shown) for sucking dust, and one end is attached to the vacuum cleaner main body 100. A flexible suction hose 200 communicated with the blower,
00, a hand handle 300 connected to the blower, connected to the hand handle 300, connected to the suction hose 200, and a connection pipe 400 attached to the connection pipe 400. And a mouthpiece 500 communicating with the suction port. The components other than the mouthpiece 500 are the same as those described with reference to FIG.

The handle 300 is connected to the connection pipe 400.
In the longitudinal direction of the connecting pipe 400, that is, at the upper end on the extension of the central axis Q of the connecting pipe 400, it has an angle of about 110 degrees with the central axis Q, and its longitudinal direction is the suction hose 200 and the connecting pipe 40.
The handle portion 301 is provided at a position substantially coincident with the connection direction 0. With this handle portion 301, the vacuum cleaner main body 100 can be moved via the suction hose 200, and further, the movement of the mouthpiece 500 can be operated. In particular, according to the handle portion 301, the twisting operation, that is, the rotation P1 about the central axis Q can be easily performed.

The suction body 500 includes a suction body 1000 provided with a suction port 1010 (see FIG. 30) for sucking dust on the bottom surface, and the suction body 1000 connected to the connection pipe 400.
And a universal connection portion 1500 that operates so that the bottom surface of the mouthpiece main body 1000 always comes into contact with the floor surface in response to the movement of the hand handle 300 transmitted through the connection pipe 400.

The suction main body 1000 has a suction opening 1010 (see FIG. 30) provided with a rotary brush 1011 (see FIG. 30) for sucking dust on the floor surface on the bottom surface. The flexible connection part 1500 is a flexible connection hose 1501 for communicating the suction body 1000 and the connection pipe 400.
And a universal hinge 1502 provided so as to cover the connecting hose 1501 and rotatably connecting the suction port body 1000 and the connecting pipe 400.

The universal hinge 1502 is connected to the suction body 50.
Centering on 0, the height direction Y of the handle 300 at hand,
The mouthpiece body 1 is connected so as to be rotatable in the left-right direction X, and the rotation P1 of the twisting operation of the handle 300 is held as it is.
000 rotation P2. In this embodiment, the universal hinge 1502 is connected to the suction main body 100.
The lower arm 1502a is rotatably mounted at 0 and enables rotation in the height direction Y, and one end is mounted on the connection pipe 400, and the other end is rotatable with the lower arm 1502a in the left-right direction X. And an upper arm 1502b attached as described above.

In this embodiment, although described in detail later, the angle in the elevation direction Y is set to be operable within a range of about 90 degrees from the floor surface and about 180 degrees in the left-right direction X.

Further, the mouthpiece 500 is provided with the mouthpiece main body 10.
Around the sliding member 1100 instead of the conventional bumper
The wheels 120 improve the cleaning performance near the wall and smoothen the movement of the suction body 1000 on the bottom surface.
0 is provided. Furthermore, by providing a dust guide means 1300 (see FIG. 36) at the front (between the tip) of the suction port 1010 provided on the bottom surface of the suction main body 1000,
It is possible to efficiently suck dust that is difficult to remove by the wall.

As described above, a major feature of the present embodiment is that the mouthpiece 500 via the handle 300 at hand is provided.
Operation, for example, the rotation P of the twisting operation of the hand handle
1 can be used as the rotation P2 of the suction body 500 as it is, so that the operation performed by the user with the handle 300 can be smoothly performed as the movement of the suction body 500. Specifically, for example, by twisting the handle 300 by 90 degrees (rotation P1), the mouthpiece 500 is rotated by 90 degrees as shown by the dotted line in FIG. 1, and the vertically moving direction of the suction body 1000 along the wall surface It is possible to clean the floor near the wall while moving back and forth in the direction of V1. On this occasion,
The suction member 500 can be smoothly moved by the sliding member 1100 and the wheels 1200, and the damage to the wall surface can be reduced. Further, the dust on the hard-to-remove wall can be efficiently sucked by the guide means 1300. Can be.

Hereinafter, the mouthpiece 500 will be described in detail with reference to FIGS.

First, based on FIG. 2 showing a component configuration diagram of the suction body 500, referring to FIG. 3 showing a cross-sectional view of a planar arrangement configuration of the suction body 500 and FIG.
The schematic structure of the mouthpiece 500 will be described. The mouthpiece 50
Each part other than the zero free connection part 1500 is common to the description of FIG.

In the figure, as described above, the mouthpiece 50
Numeral 0 is composed of a mouthpiece main body 1000 and a universal connection part 1500.

The mouthpiece body 1000 includes a lower case 1001 which forms the skeleton of the mouthpiece body 1000, a front upper cover 1002 which covers the front of the mouthpiece body 1000, and a mouthpiece body 10.
00 and a rear upper cover 1003 that covers the rear of 00.

The lower case 1001 is provided with a partition wall 1004 which divides the suction main body 1000 back and forth at a slightly rearward position, the front part is a suction chamber 1005, and the center of the rear part is a mounting part 1006 of the free connection part 1500. The mounting part 100
6 are provided as ventilation passages 1007 for driving a turbine 1012 to be described later. A notch 1008 is formed at the center of the partition wall 1004, and a bell mouth body 1009 for guiding dust in the suction chamber 1005 to the connection hose 1501 of the free connection portion 1500 is attached to the notch 1008.

The rear upper cover 1003 covers the upper part of the attachment portion 1006 of the universal connection portion 1500 and fixes the bell mouth body 1009 and the universal connection portion 1500 to the lower case 1001. And so on.

The front upper cover 1002 is attached to the suction chamber 10.
05 and the upper part of the ventilation path 1007, and the lower case 10
01 constitutes a suction chamber 1005 and a ventilation path 1007. An open / close lever 1022 (see FIG. 4) provided on both sides at the rear by hooking ribs (not shown) provided on both sides of the front part of the front upper cover 1002 on the lower case 1001. (See 35)
It is designed to be attached detachably.

The lower case 10 below the suction chamber 1005
A suction port 1010 is formed in 01, and a rotary brush 1011 for scraping up dust and the like is disposed in a suction chamber 1005 above the suction port 1010. Turbine 1012 is attached to both ends of rotating brush 1011.

Referring back to FIG. 30, a viewing window 1017 is provided at the front center of the front upper cover 1002 located above the rotating brush 1011. For this reason, the viewing window 1
Since the operation state of the rotating brush 1011 can be visually checked through the 017, troubles such as a stop of the rotating brush 1011 and the like,
You can know the status of dirt inside.

On the other hand, the universal connecting portion 1500 is
02a, an upper arm 1502b, and a connecting hose 1501. Then, the universal connecting portion 1500 is provided as shown in FIG.
, A first rotating shaft 1533 connected by a lower arm 1502a and an upper arm 1502b, and a lower arm 1502a.
And a second rotation shaft 1535 connected to the suction main body 100.

Referring back to FIG. 30, the cylindrical lower arm 1502a has a rotating shaft 1503 formed on both ends at one end.
03 is rotatably mounted in a vertical direction (vertical direction in the drawing) between a bearing 1018 formed in the mounting portion 1006 of the lower case 1001 and a bearing 1019 formed in the rear upper cover 1003. 2 rotary shaft 1535
Is configured.

The other end of the lower arm 1502a is provided with a rotary shaft hole 1504 at the top and bottom at a position crossing the rotary shaft 1503 by 90 degrees. On the other hand, the cylindrical upper arm 15
02b has a rotation shaft hole 1505 attached to the rotation shaft hole 1504 at one end. The upper arm portion 1502b and the lower arm portion 1502a are rotatably mounted in the left-right direction (left-right direction in the drawing) by inserting the pin 1506 into the rotation shaft hole 1504 and the rotation shaft hole 1505. , The first rotating shaft 1533.

A connecting portion 1507 is formed at the other end of the upper arm 1502b so as to be detachably connected to the connecting tube 402. The connection hose 1501 connects the rear end portion 1009a of the bell mouth body 1009 and the connection portion 1507 of the upper arm portion 1502b, and the lower arm portion 1502a and the upper arm portion 1
It is mounted in 502b.

As described above, the universal connecting portion 1 according to the present embodiment.
500, the connecting hose 1501 is connected to the lower arm 1502
Since the connection hose 1501 and the upper arm 1502b are arranged inside, the play of the connection hose 1501 can be reduced to minimize the distance, and the connection hose 1501 can be protected from the outside.

Further, the periphery of the upper part of the lower case 1001, especially the long side facing the mounting part 1006 to which the flexible connecting part 1500 which is the front part of the suction body 500 is mounted, protrudes outward from the other peripheral side. By forming the thick portion 1020, the overall rigidity is increased, and a sliding member 1100 in which the thick portion 1020 is planted with nylon or the like is provided by insert molding.

As described above, the mouthpiece 500 according to this embodiment is
Since the rotating brush 1011 is rotated by using the turbine 1012 rotating by the suction airflow of the blower provided in the electric vacuum cleaner main body 100 as a drive source, the weight of the mouthpiece 500 can be reduced. In addition, at the rear center of the suction chamber 1005, a mounting portion 1006 of the free connection portion 1500,
Since the ventilation passages 1007 are arranged on both sides of the device, the overall height can be reduced and a compact configuration can be achieved. In addition, since the attachment of the flexible connecting portion 1500 that requires rigidity and airtightness is solved by attaching the rear upper cover 1003, the number of parts can be reduced, and the assemblability can be improved. Further, the parts other than the rear upper cover 1003 can be opened simply by passing them through the front upper cover 1002, and the rotating brush 1011 can be easily removed, so that disassembly and cleaning can be improved. In addition, the rotating brush 10
Since the assembly can be completed simply by attaching the front cover 11 and mounting the front upper cover 1002, the handleability can be improved.

Next, the appearance of the mouthpiece 500 will be described in detail with reference to FIGS. FIG. 33 is an external perspective view,
34 is an external side view, FIG. 35 is an external rear view, FIG. 36 is a bottom view, and FIG. 37 is a cross-sectional view of a main part of a sliding member.

First, in FIG. 33, the mouthpiece 500 of the present embodiment has a thin appearance and a suction body 10.
The front portion of the universal joint portion 00 is extended to both sides, and the mounting portion 1006 of the free connecting portion 1500 arranged at the center of the rear portion has a substantially T-shaped planar shape extended rearward. And, by making the entire upper surface into a shape having a round shape as a main body, the cleanability is improved, and by making each corner portion into a round shape, consideration is given not to scratch furniture or the like.

Further, as shown in FIG. 34 and FIG. 32, the side surface of the tip end of the suction main body 1000 is formed in a substantially wedge shape having a convex arcuate upper surface, so that the rotation area of the rotating brush 1011 is secured while securing the rotation area. 1005 has a shape that allows the airflow to be easily introduced into the bellmouth body 1009, and has a compact form as a whole.

Returning to FIG. 33, in this embodiment, the thick portion 1020 is formed so that the suction body 500 is easy to hit furniture or the like, that is, the longitudinal direction including four corners protruding on both sides of the suction main body 1000. It is formed in a belt-like and convex shape continuously formed on both sides and a part of the front part and the back surface. And the sliding member 1100 is continuously provided in the thick part 1020. As shown in FIG.
00, a brush 1101 having a short bristle of nylon material is implanted in a brush base 1102, and the brush base 1020 is inserted into a groove 1021 formed in the thick part 1020, thereby fixing the brush 1101 to the thick part 1020. ing. Here, the brush stand 1102 can be attached to the groove 1021 to reduce the number of parts, but it can be divided and attached to facilitate the molding. Further, the brush stand 1102 may be integrally formed with the thick portion 1020 to improve the assemblability. However, even if the cost of the equipment is reduced by bonding or press-fitting using elasticity of a resin material or the like. Good.

Further, the purpose of adopting the sliding member 1100 is to move the front part of the suction body 500 in the left-right direction V along the wall surface or the like.
1 (see FIG. 29). Therefore, the sliding member 1100 only needs to improve the sliding.

[0165] In the case of a more favorable one, the mobility can be enhanced by providing the four corners protruding on both sides of the suction main body 1000 and the center of the front part. This sliding member 11
The arrangement of 00 may be the same as that of the embodiment shown in FIG. For example, in the embodiment shown in FIG.
Although the brush 1101 is used as 100, the manufacturing cost may be reduced by attaching a velvet or a fiber material by bonding or the like. These sliding materials 1100 can also be expected to have an effect as a bumper function by adopting a thick material. Further, the structure may be similar to that of the first embodiment.

Next, referring to FIG. 33, in this embodiment,
The size of the suction body 500 is set such that the depth D is 304 mm and the depth D1 of the suction main body in a state where the free connection portion 1500 is extended.
The depth D2 of the root portion protruding to both sides and the depth D3 of both end portions are set to 152 mm, 97 mm, and 83 mm, respectively. In this embodiment, the length D of the connecting portion 1507
Since 4 is set to 50 mm, the depth when attached to the connection pipe 400 is set to 254 mm. Further, FIG.
As shown in FIG. 36, the height H6
3.5 mm, width W is 280 mm, width W1 of suction port 1010
Is set to 226 mm.

Next, referring to FIGS. 34 and 35, in the mouthpiece 500 according to this embodiment, the upper surface is formed to have a flat shape with a rounded shape, so that dirt on the upper surface can be easily wiped off and the front portion constituting the upper surface can be easily removed. The upper cover 1002 is easily removed, for example, and has a good cleaning property.

In order to realize this effect, the mouthpiece 500 according to the present embodiment is provided with the attachment portion 100 of the universal connection portion 1500.
6 are covered with a front upper cover 1002, and a pair of opening / closing levers 1 provided on the front upper cover 1002 are slid in the lateral direction of the front upper cover 1002.
022 and ventilation holes 1016 are provided concentrated on both sides of the rear wall of the front upper cover 1002, and hand recesses 1023 for removing the front upper cover 1002 are provided on both side surfaces of the front upper cover 1002.

The ventilation hole 1016 is formed by a plurality of slit portions 1016a divided along the longitudinal direction of the mouthpiece 500.
The slit portion 1016a is formed in a concave shape so as to be one step lower from the periphery, and a punched opening is integrally formed with the front upper cover 1002 in the concave shape. According to the structure of the ventilation hole 1016, the punching-shaped opening which is weakened in strength is formed one step lower than the surroundings and is divided into a plurality of slits, so that it can be made strong against impact.

According to the present embodiment, the opening / closing lever 1022 and the ventilation hole 1016 are provided on the rear surface where the impact is hardly received, and the structure is hardly damaged by external force even if the furniture or the like comes into contact during cleaning. . In addition, the mouthpiece 5
00 (front upper cover 1002) on the side surface
3, the forefinger or the middle finger is inserted into the handle concave portion 1023, and the thumb is moved to the opening / closing lever 10.
22, the opening / closing lever 1022 is slid outward to release the engagement, and is gripped by the thumb and the index finger (middle finger), so that the front upper cover 1002 can be easily removed from the mouthpiece 500.

Further, the opening / closing lever 1 that easily accumulates dirt is provided.
022, the vent hole 1016, and the handle concave portion 1023 are provided on the vertical surface, so that dirt hardly accumulates. Moreover,
Since it is provided on the front upper cover 1002, the front upper cover 1002 can be removed and the front upper cover 1002 can be washed from the front and back, so that the cleaning performance can be improved. In addition, the front upper cover 1002 can be easily attached, and the upper surface of the attached suction body 500 has a continuous flat flat shape with the front upper cover 1002 and the rear upper cover 1003. Can be wiped off.

In FIG. 36, lower case 1001 includes
A plurality of wheels 1200 are arranged so that the entire suction body 500 is moved in the horizontal configuration movement direction V2 and the vertical configuration movement direction V1, and a predetermined interval is maintained between the bottom surface of the suction body 500 and the cleaning surface. The wheel 1200 is provided with the suction body 50.
A pair of front wheels 1201 arranged on both sides of the front portion of the bottom surface of the vehicle
And a pair of rear wheels 1202 for receiving pressure on a cleaning surface during use of the electric vacuum cleaner 1.

Here, a front wheel 1201 and a rear wheel 1202
Are arranged at positions facing each other. That is, as described above, the pair of front wheels 1201 and the pair of rear wheels 1 are provided on the radially extending portion of the turbine 1012 of the lower case 1001.
202 is located at the bottom 101 of the turbine 1012
The gap between 0 and the cleaning floor is kept constant. Further, by providing a pair of rearmost wheels 1203 below the universal connection portion 1500 so as to sandwich the universal connection portion 1500, even if a force is received from the hand handle 300, the rearmost wheel 1203 receives the force and cleans. The clearance with the floor is kept constant. Moreover, the free connecting portion 15
00, so that the free connecting portion 1500 is provided.
Does not hinder the operation range in the height direction Y, especially the minimum angle # 3.

As described above, the mouthpiece 500 according to the present embodiment is characterized in that, in addition to the movement in the horizontal configuration movement direction V2, it is moved in the vertical configuration movement direction V1. In this embodiment, a sliding member 1210 is provided around the wheel 1200 as shown in FIG. 14 in order to achieve the movement in the vertical movement direction V1.

As described above, the mouthpiece 50 according to this embodiment is described.
On the bottom surface of the wheel 0, five wheels (basic arrangement) are provided so that a front wheel 1201 and a rear wheel 1202 are provided on the left and right, respectively, and a rear wheel 1203 is provided at the rear center. According to this wheel configuration, it is possible to obtain excellent running performance in the horizontally long moving direction V2, and also excellent running performance in the vertically long moving direction V1 as well as diagonal movement and rotation. In particular, since the rearmost wheel 1203 is located closer to the user than the rotation shaft 1503 of the free connection portion 1500 during use, the rearward wheel 1203 prevents the movement in the horizontally long moving direction V2, especially the lifting of the tip of the suction body 500 when retracting. Can be reduced. Further, the rotation shaft 1503 of the universal connection portion 1500 is
Since it is provided in the point wheel, even if the mouthpiece 500 is rotated via the handle 300 at hand, the inclination of the mouthpiece 500 (lift of the corner) can be reduced. Moreover, each wheel 1200
Are arranged at the corners of the mouthpiece 500, so that the catch during rotation can be reduced.

Next, a dust guiding means 1300 is provided at the front of the suction port 1010 provided at the bottom of the suction body 500, and a pressure control plate 1301 is provided at the rear of the suction port 1010. The guide means 1300 includes a flat portion 130 formed between the mouthpiece 1010 and the tip of the mouthpiece 500.
2 has a function of efficiently sucking dust that is difficult to suck.

The guide means 1300 according to this embodiment
Is for efficiently sucking the dust which is difficult to suck. The guide means 1300 of this embodiment implants a brush 1314 on the brush table 1313 and
Are embedded at intervals along the longitudinal direction of the plane portion 1302. According to this embodiment, the flow rate can be increased because the number of the flow paths 1315 is reduced, and the effect of wiping the floor can be enhanced because the brushes 1314 are densely provided.

Note that the pressure control plate 1301 is
In step 312, the dust that has rushed out and jumps backward is received and sucked into the suction port 1010 again.

The flexible connecting portion 1500 may be covered with a flexible sheet as shown by a dotted line. As the sheet, a rubber material formed in a cylindrical shape,
A soft resin or a woven fabric formed in a bellows shape may be used as long as it does not hinder the operation range of the flexible connection. In addition, it is preferable to make it detachable in consideration of cleanability. In this way, it is possible to prevent the finger from being pinched by the free connection portion 1500 and to enhance the safety.

Next, referring to FIGS. 38 to 42, the universal connecting portion 1 will be described.
500 will be described in detail. 38 is an external perspective view of the universal connecting portion, FIG. 39 is a plan view of the universal connecting portion, FIG. 40 is an assembly process diagram of the universal connecting portion, FIG. 41 is an explanatory view of an application example of another universal connecting portion, and FIG. It is an operation | movement principle figure of the universal connection part 1500.

38 and 39, first, the mouthpiece 500 according to this embodiment has two arms (a lower arm 1502a).
And an upper arm 1502b) are rotatable about two rotation axes orthogonal to each other.

Specifically, the lower arm portion 15 formed in a cylindrical shape
02a are cutouts 15 in the upper and lower portions around the rotation shaft 1503.
10 and 1511 are formed and cut out in an arc shape, so that the rotation of the lower arm 1502a about the rotation shaft 1503 is made smooth and the angle in the height direction Y is determined. That is, the lower notch 151 of the lower arm 1502a
0, together with the notch 1024 (see FIG. 30) formed behind the mounting portion shaft 1006 of the lower case 1001, determines the minimum angle Θ3 of the angle in the vertical direction Y. In this embodiment, the angle is set to about 5 degrees so that the adapter or the like attached to the free connection portion 1500 or the connection pipe 400 does not contact the floor surface. The upper cutout 1511 is located on the rear upper cover 1.
Along with the notch 1025 (see FIG. 30) formed at the rear of 003, the maximum angle Θ4 of the angle in the height direction Y is determined. In this embodiment, by setting the angle to about 95 degrees,
Vertical storage is possible with the mouthpiece 500, the connection pipe 400, and the handle 300 being connected.

On the other hand, the lower arm 1502a and the upper arm 1502
b are cutouts 15 on both sides of the rotary shaft holes 1504, 1505.
By forming 12, 1513, the angle の in the left-right direction X is obtained.
5 has been determined. In this embodiment, the angle Θ5 is formed so as to have an operating range of 180 degrees in total by 90 degrees left and right.

According to this articulated structure, rotation in the vertical direction Y and horizontal direction X is enabled, and the rotation P1 of the twisting operation of the hand handle 300 is transmitted as the same rotation angle, and the rotation of the mouthpiece 500 is performed. P2 can be obtained. The height direction Y, the left-right direction X, and the rotations P1 and P2 can also be obtained by rotating the lower arm 1502a and the mouthpiece body 1000 in the left-right direction X and rotating the upper arm 1502b in the height direction Y. However, in order to improve the straightness of the suction body 500, it is preferable that the rotation of the lower arm 1502a and the suction main body 1000 be rotation in the vertical direction Y. When the rotation of the lower arm 1502a and the mouthpiece body 1000 is the rotation in the left-right direction X, a locking means for fixing the rotation in the left-right direction X at a predetermined position is provided.

In this embodiment, the upper arm 1502b and the lower arm 1502a are rotatably connected by the pin 1506. However, the present invention is not limited to this structure. For example, as shown in FIG. 38 (b), a convex shaft 1504a is used instead of the rotary hole 1504 of the upper arm 1502b of the above embodiment.
Is formed, and a concave receiving shaft 1505a for receiving the convex shaft 1504a is formed in place of the rotation hole 1505 of the lower arm 1502a, so that the convex shaft 1504a and the concave receiving shaft 1505a are rotatably fitted. . According to this structure, the fitting between the convex shaft 1504a and the concave receiving shaft 1505a can be strengthened by utilizing the elasticity of the resin material, and a large pressure, for example, a large torsional force is applied to the universal connecting portion 1500. In this case, the fitting is released without damaging the flexible connecting portion 1500 by the elastic force of the resin material.
Damage can be avoided. Of course, it is easy to return to the original fitted state by the elastic force, and the assemblability is improved.

In FIG. 39, the distance L1 between the center of the rotary shaft 1503 and the centers of the rotary shaft holes 1504 and 1505 is shown.
Is determined in consideration of the minimum bending radius R of the connecting hose 1501. That is, the connecting hose 1501 is connected to the lower arm 150.
The distance L2 between the positions 1514 and 1515 which are fixed to the upper arm 2a and the upper arm 1502b and whose expansion and contraction is limited is determined to be twice the minimum bending radius R. Then, it is determined that 1/2 of the distance L2 is set as the distance L1. Therefore, if the connecting hose 1501 is thinner than the inner diameters of the lower arm 1502a and the upper arm 1502b, L1 can be shortened, and if the connecting hose 1501 is made thicker, L1 becomes longer.

In the present embodiment, the minimum bending radius R of the connecting hose 1501 is set to be smaller than that of the connecting hose 1501 for the reason described later.
1 is set in a slightly pulled state, but is not limited to this. The connection hose 1501 in a normal state may be employed.

In this embodiment, the connection hose 15
01 is covered by the lower arm 1502a and the upper arm 1502b, and the connecting hose 1501 is worn by providing a reinforcing member at a portion where the connecting hose 1501, the lower arm 1502a, and the upper arm 1502b are in contact. It is possible to reduce troubles such as drilling holes and improve durability. The reinforcing material may be applied to the inside of the lower arm 1502a and the upper arm 1502b around the positions 1514 and 1515, or the entire connecting hose 1501 may be covered with a durable and stretchable reinforcing sheet. In particular, if a color is applied to the reinforcing sheet, dirt due to dust can be reduced, a wide variety of models can be developed, and the design can be improved.

In this embodiment, a lock mechanism 1516 is provided to temporarily lock the rotation in the left-right direction X at a position of 90 degrees. For example, in this embodiment, with the rotating shaft holes 1504 and 1505 fitted with the pins 1506, the sliding surfaces of the lower arm 1502a and the upper arm 1502b are
A convex portion 1517 and a concave portion 1518 are provided at which the lower arm portion 1502a and the upper arm portion 1502b are fitted at a linear position. The strength of the fitting between the convex portion 1517 and the concave portion 1518 is determined as appropriate in consideration of the elasticity of the resin material and the distance from the rotation axis and the size of the unevenness.

According to the lock mechanism 1516, when the lower arm 1502a and the upper arm 1502b are linear, the rotation in the left-right direction X is fixed.
The straightness of 0 is improved, and the movement in the front-rear direction becomes easy. On the other hand, when trying to rotate the mouthpiece 300 via the handle 300 at hand, the protrusion 1517 and the recess 1518 formed of a resin material are disengaged by elasticity, so that the lock mechanism 1516 can be disengaged with a slight force. it can. In this embodiment, one convex portion 1517 and one concave portion 1518 are provided in order to enhance the straightness of the mouthpiece 500. For example, the concave portion 1518 may be formed at a predetermined frequency (45 degrees, 90 degrees).
, Etc.).

Next, referring to FIG.
Will be described. First, the connecting hose 1501 of this embodiment includes a bell mouth body 1009 and an upper arm 1502b.
Mounted to pull on. With this pulling force, the connecting hose 1501 is maintained in a straight state when it is straight, and acts strongly in the bending direction when a bending force is applied. For this reason, the lock mechanism 1516
In the locked state, the locked state is further maintained to improve the straightness, and when the locked state is released, the mouthpiece 500 can be easily turned. In this embodiment, the suction body 50
As one means for improving the straightness of the vehicle, the connecting hose 15
Although the pulling force of 01 is used, for example, a pulling member such as a spring or rubber may be provided symmetrically on both sides to improve the straightness.

In this embodiment, since the connecting hose 1501 is disposed in the universal hinge 1502, the assembling is performed in a process as shown in FIG. In particular, this step is effective when the connecting hose 1501 is attached in a stretched state.

First, as shown in FIG. 19A, the connecting hose 1501 is passed through the lower arm 1502a, and
One end of 501 is a rear end 1009 of a bell mouth body 1009.
a, and attaches the bell mouth body 1009 to the partition wall 10.
04 is attached to a notch 1008 provided at the center of the lower case 10 and the rotation shaft 1503 of the lower arm 1502a is attached to the lower case 10.
01 and a rear upper case 1003, and the bell mouth body 100
9 and the lower arm 1502a are fixed. At this time, the other end of the connecting hose 1501 is fitted into a fitting hole 1519 provided in the upper arm 1502b to connect the connecting hose 1501 to the upper arm 150.
2b and upper arm 1502
packing 15 for maintaining the airtightness between b and connecting hose 1501
21b is attached.

Next, as shown in FIG.
02b and the lower arm 1502a, and
21 is inserted into the upper arm 1502b, and the fitting hole 151 is inserted.
9 and the convex rib 1520 are fitted to connect the connection hose 1501 to the lower arm 1502a.

Next, as shown in FIG.
02b, align the rotary shaft holes 1504 and 1505,
By inserting the pin 1506, the upper arm 1502b and the lower arm 1502a are connected to complete the assembly of the universal connection 1500.

When the convex shaft 1504a and the concave receiving shaft 1505a described with reference to FIG. 38B are employed, they are fitted by utilizing the elasticity of the resin material. This assembling process is an example, and may be assembled in another process.

Next, FIG. 41 shows another embodiment in which the assembling and disassembling properties of the flexible connecting portion 1500 are improved. In FIG. 41,
(A) is a partial enlarged view and a partial cross-sectional view of a connecting portion 1521 attached to the other end of the connecting hose 1501, and (b) is an external view of the connecting hose 1501 with the other end removed.

In FIG. 41, a connecting portion 1521a provided with a packing 1521b similar to that of the above embodiment is attached to the other end of the connecting hose 1501. This connecting portion 1521a
Protruding rib 152 that can be cut in and pushed inward
0a is provided on the upper arm 1502b.
The release button 1519b is provided with a fitting hole 1519a that fits with the hole a and can be cut out and extended outward. According to this structure, as in the embodiment shown in FIG. 15, the connecting portion 1521a is inserted into the upper arm portion 1502b, the convex rib 1520a and the fitting hole 1519b are fitted, and the connecting hose 1501 and the lower arm portion are fitted. 1502a can be connected. On the other hand, if the release button 1519b is pushed in as shown by the arrow, the fitting is released and one end of the connection hose 1501 can be removed.

Therefore, when cleaning the mouthpiece 500,
The inside of the connection hose 1501 that is easily soiled can be easily cleaned. In addition, the connection hose 1501 and the attachment portion 1009a of the bell mouth body 1009 are detachably attached, for example, the attachment hose 1001 is attached to the attachment portion 1009a.
01 is screwed into the connection hose 1501 and the connection hose 1501 is rotated to rotate the connection hose 1501.
501 can be easily removed. Therefore, the rear upper cover 1002 does not need to be removed. With such a structure, the connection hose 1501 can be easily replaced at the time of maintenance, and the cleaning performance of the mouthpiece 500 can be improved. In particular, when the mouthpiece 500 is washed as a whole, the connection hose 1501 can be easily washed and dried.

Next, the principle of operation of the mouthpiece 500 according to this embodiment will be described with reference to FIG. The mouthpiece 500 according to this embodiment includes a rotation P of the twisting operation of the handle 300 at hand.
1 can be transmitted to the rotation P2 of the mouthpiece main body 1000 as it is. The principle of this operation can be explained as follows, for example.

(A) is a side view of the mouthpiece 500 conceptually showing a state A1 in which the angle of the elevation direction Y is 45 degrees and a state A2 in which the angle is 90 degrees. (D) FIG. FIG. 7 is a side view of a state A3 in which the angle in the elevation direction Y is reduced to about 30 degrees.

(B) is a plan view of the mouthpiece 500 in a state A1 in which the angle of the elevation direction Y is 45 degrees, and in a state A0 in which the angle of the twisting operation P1 is 90 degrees from the state A1,
(C) The state A in which the angle of the twisting operation P1 is 90 degrees.
0 shows a front view of the mouthpiece 500 of FIG.

(A) In this embodiment, in this embodiment, the first rotating shaft 1 is located on the extension of the central axis Q of the connecting pipe 400.
533 and a second rotation shaft 1535 are arranged. That is, the lower arm 1502 is extended on the extension of the central axis Q of the connection pipe 400.
a and the tube axis of the upper arm 1502b are arranged. According to the experimental verification of this embodiment, the rotation P1 of the twisting operation of the hand handle 300 is determined by the rotation P2 of the suction body 500 about the intersection G1 where the extension of the central axis Q intersects the floor.
Is converted to Therefore, in the state A2 in which the angle of the elevation direction Y is 90 degrees, the intersection G2 where the extension of the central axis Q intersects the floor is located immediately below the hand handle 300.
The rotation of the twisting operation P1 of the handle 300 can be easily performed. On the other hand, as shown in FIG. In the state A3 in which the angle in the height direction Y is reduced, the intersection G
Since the distance 3 is far, the rotation P2 of the mouthpiece 500 cannot be obtained unless the twist rotation P1 is applied with a large force.
Moreover, as is apparent from the figure, if the angle in the elevation direction Y is too small, the extension of the central axis Q does not intersect with the floor surface, so that the rotation P2 of the mouthpiece 500 cannot be obtained.

In elucidating the operation principle of this embodiment, the first state A1 and the last state A0 of the rotation operation are changed by rotating and moving the handle 300 with the suction body 500 fixed. Compare. First, (a)
(B) As shown in the figure, in the first state A1,
An intersection G <b> 1 where the extension of the central axis Q intersects the floor surface is set substantially at the center of the mouthpiece 500. However, as shown in FIGS.
After adding 1 to the final state A0, the central axis Q
The intersection G0 at which the extension of the line intersects the floor is set on one side in the longitudinal direction of the mouthpiece 500. That is, in the normal operation state, the hand handle 300 is operated at a predetermined position by the user, so that the rotation P2 of the mouthpiece 500 rotates while moving the intersection G1, which is the center of the rotation P2, to G0. . This will be described more specifically.
When the rotation of the twisting action P1 is added to the direction of arrow E1 in the direction of arrow E1,
Since the mouth main body 1000 originally intended to rotate according to the twisting operation P1 is prevented from rotating by the floor surface, the first rotating shaft 1533 rotates while tilting the rotating shaft and escapes in the direction of arrow E2. Operate. on the other hand,
The second rotating shaft 1535 operates to receive the twisting operation P1 on the entire bottom surface of the mouthpiece 500, and
A first rotating shaft 153 that rotates while tilting the rotating shaft
In accordance with the movement of No. 3, the rotation is gradually performed, that is, the angle in the height direction Y is increased. As a result, the mouthpiece 55
In the case of 0, the rotation P2 rotates in the direction of the arrow E3 while changing the center position of the rotation P2 from G1 to G0. In this embodiment, the central axis Q
Since the first and second rotating shafts are provided on the extension of, the suction body 550 moves little in the center position of the rotation P2.

Next, an operation method of the vacuum cleaner 1 according to this embodiment will be described with reference to FIGS.

Referring to FIG. 43, first, in the vacuum cleaner 1 according to the present embodiment, the user holds the handle 300 in a standing posture, as in the first embodiment, so that By operating the mouthpiece 500, the floor surface can be cleaned. At this time, the main body of the vacuum cleaner 10 connected to the handle 300 via the suction hose 200 is attached.
Since 0 has a pair of large wheels 101 and one free wheel 102, cleaning can be performed while moving. In this example, too, according to the average body size of Japanese women,
The length of the extension tube 10 is set so that the operation range most operated by the user, that is, the angle of the extension tube 10 is 45 degrees. Then, the handle portion 301 of the handle 300 at hand
Is set to about 110 degrees, the handle 30
The user gripping 1 can easily move in the front-rear direction when the angle of the extension tube 10 is 45 degrees. Also,
Since the lower arm 1502a of the universal connection portion 1500 rotates in the vertical direction Y, the bottom surface portion of the mouthpiece 500 where the mouthpiece 1010 is provided, even if the mouthpiece 500 moves in the front-back direction, the bottom surface portion of the mouthpiece 500 Does not float off the floor. At this time, the rotation in the left and right direction X
The upper arm 1502b in the horizontal direction X
Is rotated by 45 degrees, it is difficult for the upper arm 1502b to rotate in the left-right direction X, and even if the mouthpiece 500 is moved in the front-rear direction, the displacement of the mouthpiece 500 in the left-right direction X can be reduced. . Further, in this embodiment, the lock mechanism 1516 and the connecting hose 1501 provided to
Is provided, the straightness of the suction body 500 can be further improved.

In addition, the wheels 1200 provided on the bottom surface of the mouthpiece 500 rotate as normal wheels around the rotation shaft 1211 to improve the straightness. Especially the rearmost wheel 1
By 203, the lifting of the tip of the mouthpiece 500 during the forward and backward movement is reduced, and good straightness is obtained. In addition, in this embodiment, the brush 1
With the double brush 214 and the rotating brush 1011, the dust on the floor surface can be swept up twice to increase the suction efficiency.

In this embodiment, the lower arm 1502
By performing rotation in the height direction Y at a, and performing rotation in the left-right direction X at the upper arm 1502b, the straightness of the extension tube 10 in the normal posture in the state of 45 degrees can be improved.
In the structure in which the lower arm 1502a rotates in the left-right direction X and the upper arm 1502b rotates in the height direction Y, the rotation of the mouthpiece 500 described later can be performed in the same manner as in the above-described embodiment. Since the problem remains in the straightness, it is necessary to provide the lock mechanism 1516 for preventing rotation in the left-right direction X.

Referring to FIG. 44, in this embodiment, the direction of the mouthpiece 400 can be linked to the rotation of the handle 300 by twisting the handle portion 301 of the handle 300. 44 (a) shows a state in which the handle part 301 is straightened, FIG. 44 (b) shows a state in which the handle part 301 is twisted 45 degrees, and FIG. 44 (c) shows a state in which the handle part 301 is twisted 90 degrees. FIG. In FIG. 44, three angles are used for the sake of explanation, but the angle of the twisting operation of the hand handle 300 and the angle of the mouthpiece 500 are linked at any angle in the operation range.

[0210] First, in Fig. 21 (a), the vehicle travels straight when the twist angle of the handle portion 301 is 0 degree and the extension of the center line of the connecting pipe 400 is orthogonal to the longitudinal direction of the mouthpiece 500.
That is, the state is suitable for the horizontally long moving direction V2.

[0211] On the other hand, as shown in Figure (b), when the handle portion 301 is twisted by 45 degrees, the direction of the mouthpiece 500 can also be inclined by 45 degrees by the action of the universal connection portion 1500. In this state, the wheel 1200 of the suction body 500 slides laterally, so that the front-back movement can be performed while the suction body 500 is tilted. For example, it is extremely effective when cleaning a narrow part with an obstacle in front. In addition, by changing the direction of the suction body 500, the
Since the direction of 00 is changed, it is easy to change the course of the suction body 500 as if turning the steering wheel of a car.

[0212] Further, as shown in Figure (c), when the handle portion 301 is twisted by 90 degrees, the direction of the mouthpiece 500 can be rotated by 90 degrees by the action of the universal connection portion 1500. In this state, the wheel 1200 of the suction body 500
Can be moved in the vertically long moving direction V1 while the mouthpiece 500 is rotated by 90 degrees. This posture is extremely effective for cleaning the wall. The cleaning at the side of the wall will be described with reference to FIG.

In FIG. 45, FIG.
0 shows a state where the wall is cleaned with just rotated by 90 degrees, and FIG. 2 (b) shows a state in which the mouthpiece 500 is rotated close to 90 degrees so that the wall and the handle have a distance of about the shoulder width, and the wall is cleaned. It shows a state in which Further, FIG. 9C is a diagram showing that the narrow gap cleaning becomes more optimal by setting the rotation range in the left-right direction X of this embodiment to a range wider than the 180-degree operation range. For example, by setting such a wide operation range, the connection pipe 400 and the handle 30
It is possible to reduce the possibility that the suction hose 200 facing sideways comes into contact with a wall or the like when the user twists 1.

In the state shown in FIG. 45, the longitudinal side of the mouthpiece 500 is in contact with the wall surface.
The mouthpiece 500 can be moved in the vertical movement direction V1 while moving the handwheel back and forth. In this state, the sliding member 1100 provided around the mouthpiece 500
Thus, the wall can be moved without damaging the wall, and the dust between the suction port 1010 and the wall can be efficiently sucked by the guide means 1300 provided on the bottom surface.

Next, in FIG. 46, since the mouthpiece 500 according to this embodiment can reduce the overall height H while maintaining the turning performance of the mouthpiece 500, a lower part such as a lower part of furniture can be used. Excellent cleanability. In FIG. 46,
(A) and (b) are side views and a plan view of a conventional example in use.
(C) and (d) are a side view and a plan view of the use state of this embodiment.

As is clear from the comparison between the diagrams (a) and (c), according to the present embodiment, the lower handle 300 can be inserted into the lower gap, but in the conventional example, Since the bent joint is employed, if the handle 300 is lowered, the bottom surface of the mouthpiece 500 will float. In the conventional example, as shown in FIG. 2 (b), the joint H bent by the operation of twisting the hand handle 300 can be laid down to lower the total height H, but since the mouthpiece 500 faces obliquely, the depth of the clearance There remains a problem in the cleanability of garbage. On the other hand, in the present embodiment, as shown in FIG. 6D, the side in the longitudinal direction of the mouthpiece 500 can be directly opposed to and in close contact with the wall surface at the back of the gap without performing the twisting operation. Moreover,
The lock mechanism 1516 can maintain a state in which the extension of the central axis of the connection pipe 400 and the longitudinal direction of the mouthpiece 500 are orthogonal to each other. In particular, in this embodiment, since the flexible connecting portion 1500 has a horizontal straight line shape, the suction body 500
Can be significantly reduced in height.

(Fourth Embodiment) Next, FIGS.
, Another embodiment of the vacuum cleaner according to the present invention will be described. The fourth embodiment is different from the third embodiment in that the mouthpiece 500 of the third embodiment is replaced with a connection hose 1630 serving as a transport passage and a mouthpiece 510 in which a support member of the mouthpiece 500 is separated. The other vacuum cleaner main body 100 and the like employ the same one. Here, the mouthpiece 510 will be described, and description of other parts will be omitted. Further, similar structures, parts, arrows, and the like indicate the same reference numerals, and description thereof will be omitted.

First, the outline of the fourth embodiment will be described with reference to FIG. 47 showing an external perspective view. The mouthpiece 510 according to this embodiment has a mouthpiece 1010 for sucking dust.
A suction main body 1050 having a bottom surface (see FIG. 48) and the suction main body 1050 are connected to the connection pipe 400, and the suction main body 1050 is always transmitted to the movement of the hand handle 300 transmitted through the connection pipe 400. And a free connecting portion 1600 that operates so that the bottom surface of the device contacts the floor surface.

The suction body 1050 has a suction surface 1010 (see FIG. 48) provided with a rotary brush 1011 (see FIG. 48) for sucking dust on the floor surface on the bottom surface. The free connection part 1600 is attached to the connection part 1601 communicating with the connection pipe 400 and the longitudinal direction of the connection pipe 400, that is, the lower end on the extension of the central axis Q of the connection pipe 400. A universal hinge 1602 for rotatably connecting the connecting portion 1601;
And a flexible connecting hose 1603 for communicating the connecting portion 1601.

[0220] The universal hinge 1602 is
Centering on 0, the height direction Y of the handle 300 at hand,
The mouthpiece body 1 is connected so as to be rotatable in the left-right direction X, and the rotation P1 of the twisting operation of the handle 300 is held as it is.
A mechanism for transmitting the rotation 050 to the rotation P2 is provided. In this embodiment, a first Y-shaped body 1604 provided on the suction main body 1050, a second Y-shaped body 1605 attached to the connection portion 1601, and the first Y-shaped body 1604 and the second Y-shaped body 1604 are provided.
The rotation axis is orthogonal to the Y-shaped body 1605 of FIG.
4 and 1605.

In this embodiment, although details will be described later, it is possible to operate the elevation angle Y in the range of about 90 degrees or more from the floor surface and in the left-right direction X of 180 degrees or more.

[0222] The mouthpiece body 510 is
By providing the sliding member 1100 around the periphery 50, a cleaning wheel 1250 (see FIG. 50) is provided on the bottom surface for improving the cleanability of the wall and smoothing the movement of the mouthpiece 1050 in the longitudinal direction V. Further, the suction main body 1050
By providing the dust guide means 1300 (see FIG. 50) at the front part (between the tip part) of the suction port 1010 provided on the bottom surface of the, it is possible to efficiently suck in the dust near the wall which is difficult to remove. The description of the sliding member 1100 is omitted because it is the same as that of the first embodiment.

As described above, the mouthpiece 510 according to the present embodiment is described.
According to the connection hose 1603 having the same effect as the first embodiment, and having the function of transporting dust.
Hinge 16 for rotatably supporting mouthpiece 510
Since the structure is separated from the structure 02, the structure can be simplified and the manufacturing cost can be reduced.

Hereinafter, the mouthpiece 510 will be described in detail with reference to FIGS. 48 is a structural view of parts, FIG. 49 is a structural view of a universal hinge, FIG.
1 is a schematic sectional view, and FIG. 52 is an explanatory view of a use state.

First, the component structure of the mouthpiece 510 will be described with reference to FIGS. In the figure, as described above,
The mouthpiece 510 is connected to the mouthpiece main body 1050 and the universal connection part 160.
0. The mouthpiece main body 1050 includes a lower case 1051 forming a skeleton of the mouthpiece main body 1050, a front upper cover 1052 covering the front of the mouthpiece main body 1050,
Rear upper cover 10 covering the rear of suction body 1050
53.

The rear upper cover 1053 is attached to the lower case 105.
1 are formed via screws and form ventilation passages 1007 (not shown) disposed rearward on both sides. Then, an attachment portion 1055 of the connection hose 1603 is arranged at the center of the upper front portion, and a first Y-shaped body 1604 of the free connection portion 1600 is provided behind the attachment portion 1055. Further, a bell mouth body 1009 communicating with the mounting portion 1055 of the connection hose 1603 is provided at the front center of the rear upper cover 1053, and an opening 1015 communicating with the ventilation passage 1007 is provided on both sides thereof.
Is provided.

The front upper cover 1052 is connected to the lower case 1051.
To form a dust collecting chamber 1005. A suction port 1010 is formed on the bottom surface of the dust collecting chamber 1005, and a rotating brush 1011 having a dubbin 1012 on both sides is disposed in the dust collecting chamber 1005. In this embodiment, similarly to the first embodiment, the turbine 1012 and the rotating brush 1011 are rotated by the ventilation holes 1016, and furthermore, due to the synergistic effect of the swirling flow generated in the suction port 1010, the dust can be absorbed while the dust on the cleaning surface is wound up. .

[0228] The free connecting portion 1600 is composed of a connecting portion 1601, a free hinge 1602, and a connecting hose 1603. The connecting portion 1601 includes a connecting portion 1507 detachably attached to the connecting pipe 400 at one end, and the second Y-shaped body 1605 of the universal hinge 1602 is attached to the other end, and is connected to the second Y-shaped body 1605. The portion 1507 is located substantially on an extension of the central axis Q. Also,
As shown in FIG. 51, the dust collection path 1607 formed in the connecting portion 1507 is gently bent to form the second Y-shaped body 16.
The connecting hose 160 is disposed at the front of the dust collection path 1607 at the front of the second Y-shaped body 1605.
Three attachment portions 1608 are formed. Thus, the clogging of the dust collection path 1607 is reduced. The connecting hose 1603 is connected to the mounting portion 1608 and the suction main body 105.
0 is detachably attached to the attachment portion 1055.

Next, based on FIG.
02 will be described. In the drawing, the universal hinge 1
602, a rotation axis Y1 that enables rotation in the height direction Y;
The rotation axis X1 enabling the rotation in the left-right direction X is set to one of the intersections S1.
The structure is such that rotation is possible on both axes by making them orthogonal at a point. First Y-shaped body 160 provided on mouthpiece main body 1050
4, and the second Y attached to the connection portion 1601
Inside the tip of the font 1605, there are rotating shafts 1604a, 1
405a are provided, and are rotatably attached to bearing holes (not shown) of the coupling body 1606. The free hinge 1602 is an articulated hinge, as in the first embodiment, although the rotation axis Y1 and the rotation axis X1 are orthogonal to each other at one point of the intersection S1. Therefore, this operation principle can be described, for example, in the same manner as the principle described with reference to FIG. That is, in this embodiment, the lower arm 1502
It can be considered that the length of a is reduced and the length is eliminated. For this reason, also in this embodiment, in addition to the height direction Y and the left-right direction X, the same rotation angle as the rotation angle of the rotation P1 of the hand handle 300 is transmitted to the mouthpiece main body 1050,
The mouthpiece 510 can be turned. Therefore,
The rotation axis Y1 and the rotation axis X1 need not intersect at one point of the intersection S1. However, by intersecting at the intersection S, the free hinge 1602 can be made very compact.

Next, the structure of the bottom surface of the mouthpiece 510 will be described with reference to FIG. In this figure, this embodiment employs a universal wheel 1250 having excellent running characteristics, particularly excellent turning characteristics. The universal wheel 1250 has a four-wheel configuration including a pair of rear wheels 1251 provided on both sides (lower part in the drawing) behind the bottom surface and a pair of front wheels 1252 provided on both sides in the center of the bottom surface. The arrangement of the four wheels is such that the turning center S2 of the mouthpiece 510 is substantially located on an extension of the central axis Q of the connecting pipe 400 in a frequently used state where the connecting pipe 400 is at an angle of 45 degrees. It was done. With this arrangement,
The twisting operation of the hand handle 300 can be performed easily and smoothly. Further, the rearwardly displaced wheel arrangement covers the rear portion of the mouthpiece 510 to which addition accompanying the movement operation transmitted from the hand handle 300 is likely to be added, and is effective in maintaining the posture of the mouthpiece 510.

In this embodiment, the universal wheel 12
By providing the recesses 50 in the recess, the clearance between the suction port 1010 and the floor surface is not increased, and the rear center of the bottom surface serving as a dead space is formed in a concave shape, thereby increasing the strength of the suction body 510 and reducing the weight. Figure.

Further, in this embodiment, the guide means 1300 is provided at the front of the bottom surface of the suction body 510, so that the space between the suction port 1010 disposed between the front wheel 1252 and the guide means 1300 and the cleaning floor surface is provided. The gap is kept constant. Thereby, the guide means 1300 can be provided with a function like a wheel having no direction, so that it is possible to maintain the suction efficiency while improving the turning performance.

In addition, the guide means 1300 of this embodiment
The brush table 1215 in which the bundles of brushes 1310 are arranged in rows in the longitudinal direction of the mouthpiece 510 is attached to the front end of the flat portion 1302.

In FIGS. 51 and 52, in this embodiment, the connecting hose 1630 is attached in a state where the angle in the height direction Y is 0 ° and is so tight that the tip of the mouthpiece 510 does not rise. Thereby, even if the mouthpiece 510 is inserted into a low gap such as under a desk as shown in FIG.
Even when the posture is frequently used, or the posture in which the angle in the left-right direction X is 90 degrees as shown in FIG. 51, the extra connecting hose 1630 obstructs the maintenance of the posture and twists the hand handle. It is possible to reduce the possibility that the connection hose 1630 is broken or the connection hose 1630 is broken.

Further, in this embodiment, the connecting hose 1630 forming the transfer path of the dust and the supporting member of the suction body 510 are separated, so that, for example, as shown in FIG. By removing the attached connection hose 1603 and attaching a separate clearance nozzle, it is possible to clean the clearance that is difficult to remove without disassembling the connection pipe 400. At this time, if the clearance nozzle is mounted near the mouthpiece 510, for example, by attaching a mounting device at the connection portion 1601, the clearance nozzle can be mounted to increase the efficiency of the work.

As an application example of the above-described embodiment, the length of the second Y-shaped body 1605 is increased to shorten the connection pipe 400, or the connection pipe 400 is removed and the handle having a long handle is directly attached to the handle 300 at hand. By extending the length of the connecting hose 1630, for example, by attaching a second Y-shaped body 1605, the operating range of the connecting hose 1630 having a clearance nozzle can be widened. In this case, the connecting hose 1630 is detachably held by the second Y-shaped body 1605 so that the connecting hose 1630 does not interfere with the above-mentioned posture maintenance or the like. It is preferable to provide the holding member at an appropriate interval position.

Further, according to this embodiment, since the dust conveying passage and the support member of the suction body 510 are separated, the operation range in the left-right direction X can be made 180 degrees or more, and the height direction Y can be made 90 degrees or more. Can be set to

As described above, according to the fourth embodiment,
The same effect as that of the third embodiment can be expected, and the dust conveying passage and the support member of the suction body 510 are separated, so that the universal hinge 1602 can have a simple structure and a small size, and the manufacturing cost can be reduced. Reduction can be achieved. In addition, if one end of the connecting hose 1630 serving as a transport passage is removed, the auxiliary hose can be used as another auxiliary suction port, and if both ends are further removed, the maintenance property and the cleaning property can be improved. Furthermore, the universal connection part 1600
Can be widened.

In this embodiment, the rotation axes of the Y-shaped body 1604 and the second Y-shaped body 1605 are orthogonal to each other and are rotatably mounted about the intersection S1 where they intersect. However, the present invention is not limited to this. It is not something to be done. For example, FIG.
5, a mechanism having the operation principle described with reference to FIG. 28 and a connecting hose 1630 separated from the mechanism may be used. In this case, the connection hose 1630 may be appropriately fixed to the mechanism, or may be provided with a separate guide.

(Fifth Embodiment) Next, another embodiment of the vacuum cleaner according to the present invention will be described with reference to FIGS. The fifth embodiment differs from the mouthpiece 500 of the third embodiment in that the attachment position of the universal connection portion 1500 is different, and the other vacuum cleaner main body 100 and the like adopt the same one. I have. FIG. 53 is a schematic external perspective view, and FIG. 54 is a structural conceptual view. Here, the mouthpiece 520 will be described, and description of other parts will be omitted. Further, similar structures, parts, arrows, and the like indicate the same reference numerals, and description thereof will be omitted.

The suction body 520 of this embodiment includes a suction body 1060 having a substantially rectangular parallelepiped planar shape and a suction body 106.
And a free connecting portion 1700 attached to the center of the upper surface of the O. 0. The universal connecting portion 1700 is provided with a connecting hose 15 inside the universal hinge 1502 described in the first embodiment.
01 is provided with the same structure as the universal connection portion 1500 provided with the first connector.

The suction main body 1060 includes a lower case 1061 and an upper case 1062, and forms a suction chamber 1050. The suction chamber 1050 is provided with two suction ports 1010 a and 1010 b formed in the lower case 1061.
The suction port 1010 is disposed before and after (in the short direction)
The rotating brush 1011 is provided in a and 1010b. In this embodiment, the rotating brush 1011 is
Electric motor 10 provided between the intake port 10a and the suction port 1010b
At 63, it rotates through a belt. The power of the electric motor 1063 is supplied from the vacuum cleaner main body 100 along the suction hose 200, the hand handle 300, the connection pipe 400, and the free connecting portion 1700, or by wiring provided internally. It should be noted that, similarly to the above-described embodiment, an air turbine driven type may be adopted. In addition, the electric motor 1063 is disposed below the mounting portion of the free connecting portion 1700 to improve the overall balance.

The upper case 1062 is formed in a so-called kamaboko shape having a convex semicircular side surface and long in the longitudinal direction. A hose mounting portion 1064 to which a connecting hose 1501 is mounted is provided at the center of the upper surface. Part 10
The rotating shaft 1503 of the lower arm 1502a that constitutes the universal hinge 1502 is mounted on both sides of the suction body 64, that is, on the longitudinal direction side of the mouthpiece 520, to form a pair of bearing stands 1065, and the universal connecting part 1700 can rotate. Installed.

The bearing center 1065a of the bearing base 1065 is:
The upper case 1062 is set at a position H1 from above, and the height H1 is set at a height at which the angle of the free connecting portion 1700 in the height direction Y becomes 0 degree. In this embodiment, the height H1 is reduced by making the side surface of the upper case 1062 a semicircular shape, so that the tip of the mouthpiece 520 (left side in FIG. 53) is less likely to float.

In this embodiment, the connecting hose 150
1 and the free connecting portion 1700 are provided directly above the upper case 1062 symmetrically in the front-rear and left-right directions, but may be provided obliquely rearward at the center of the upper case 1062. If you do this,
The height H1 can be lowered, and the height direction Y
The movement of the universal connecting portion 1700 in a state where the angle of the angle is small is improved. In this case, the free connecting portion 1700 is set
It is preferable that the horizontal width of the flexible connecting portion 1700 (before and after the mouthpiece 520) does not protrude from the projected area of the mouthpiece 520 in a state where the angle is 90 degrees.

Further, around the side surface of the mouthpiece 520, a sliding member 1100 similar to that of the above embodiment is formed in a belt shape. Further, around the bottom surface of the suction body 520, a guide means 1300 similar to that of the above embodiment is provided, similar to a wheel for raising dust and guiding it to the suction port 1010, and for keeping the clearance between the suction port 1010 and the floor constant. Functions. Of course, the four corners on the bottom and the most
In the center or both sides behind the bottom face receiving the force of the above, a wheel 1200, a free wheel 1250, and the like similar to the above embodiment may be provided so as to be able to turn back and forth, left and right, and turn.

As described above, according to the fifth embodiment, since the free connecting portion 1700 is provided on the upper portion of the suction main body 1060, the installation area of the suction body 520 can be reduced. For this reason, the cleaning performance of the narrow gap as shown in FIG. 45 (c) is improved. In addition, since the sliding member 1100 is provided around the side surface of the mouthpiece 520, there is no frontality, so that even the narrow gap can be cleaned along the surrounding furniture and wall surfaces. Damage to the wall surface can be reduced. Further, according to this embodiment, since the angle in the height direction Y can be set to 90 degrees or more, for example, even on an upward slope, cleaning can be performed without taking an unreasonable posture.

(Sixth Embodiment) Next, a sixth embodiment according to the present invention will be described with reference to FIG. 55 showing a conceptual diagram of a mechanism. In this embodiment, a connecting hose 1501 having the function of a dust conveyance path of the above embodiment and a free hinge 1502 are integrally formed. In the drawing, the mouthpiece 503 of this embodiment is composed of a mouthpiece main body 1070 and a free connecting portion 1800 formed of a resin material. The flexible connecting portion 1800 is rotatably attached to the mouthpiece main body 1070 and is capable of rotating in the vertical direction Y.
801a and a cylindrical upper arm 1801b, one end of which is attached to the connection pipe 400, and the other end of which is attached to the lower arm 1801a so as to enable rotation in the left-right direction X.

The suction main body 1070 is provided with an opening 1071 at the rear center thereof communicating with the suction chamber.
A pair of bearing pedestals 1072 are formed on both sides. Lower arm 1
One end of the 801a has an arc-shaped side surface, and a rotating shaft 1802 is provided on both side surfaces.
2 is rotatably mounted. The peripheral shape of the opening 1071 is formed so as to match the arc shape of one end of the lower arm portion 1801a, so that there is no air leakage. The opening 1803 formed at one end of the lower arm 1801 a is provided at the opening 107 of the suction main body 1070.
The openings 1071 and 11803 are formed so as to be narrower in the vertical direction than in the direction 1 and communicate with each other in the operation range in the height direction Y. On the other hand, the other end of the lower arm portion 1801a has an upper shape formed by cutting out both sides, and a rotating bearing 1804 is provided on the upper and lower inner sides of the tip.

One end of the upper arm 1801b has an arc-shaped upper surface, and a rotating shaft 1805 is provided on the upper and lower surfaces, and is rotatably attached to the rotating bearing 1804. The peripheral shape of the opening 1806 of the lower arm 1801a is formed so as to match the arc shape of one end of the upper arm 1801b, so that there is no air leakage. An opening 1 formed at one end of the upper arm 1801b
807 is formed to be narrower in the left-right direction than the opening 1806 of the lower arm 1801a, so that the openings 1806 and 1807 communicate with each other in the operating range in the left-right direction X. On the other hand, the other end of the upper arm 1801 b
A connecting portion 1521 that is detachably connected to the connecting portion 1521 is formed.

According to this embodiment, the same effect as that of the above embodiment can be obtained with a reduced number of parts and a simple structure. In addition, the connection of each member is made by using the elasticity of the resin material, so that even if a stress is applied from the outside, the connection portion is detached and can be connected again, so that destruction of the device is reduced, and furthermore, assembly Performance can be improved.

(Seventh Embodiment) Next, FIGS.
A seventh embodiment according to the present invention will be described with reference to FIG.
In this embodiment, the operation guide means is provided in the connection hose 1501 having the function of the dust conveyance path of the above embodiment, and the universal hinge 1502 is omitted. FIG. 56 is a schematic external perspective view, FIG. 57 is an enlarged view of a universal connecting hose, and FIG.
FIG. 8 is a structural conceptual diagram of another application example.

First, in FIG. 56 and FIG. 57, the suction body 540 of this embodiment comprises a suction body 1080 and a universal connection hose 1900. The free connecting portion 190
Reference numeral 0 denotes a hose body having a concave portion 1901 and a convex portion 1902 alternately continuous in the pipe direction.
0, and the other end is connected to the connecting pipe 400.
A connecting portion 1507 for attaching to the device is attached.

In the universal connection hose 1900, vertical operation guide ribs 1903 are integrally formed on both sides of the mounting side 1/2 of the suction main body 1080. On the other hand, the connecting portion 1
On the mounting side of 507, left and right operation guide ribs 1904 are integrally formed vertically so as to be orthogonal to the mounting position of the vertical operation guide ribs 1903.

The vertical movement guide rib 1903 is formed in a convex shape so as to fill the concave portion 1901 so as to prevent the flexible connecting hose 1900 from bending in the left-right direction X and to bend in the height direction Y. Similarly, the left-right operation guide rib 1904 is formed in a convex shape so as to fill the concave portion 1901 so as to prevent the flexible connecting hose 1900 from bending in the height direction Y and enable bending in the left-right direction X. The vertical operation guide rib 1903 and the left and right operation guide rib 1904 are connected to the universal connection hose 1900.
Can be reduced.

The width Z1 and the protruding amount Z2 of the vertical operation guide rib 1903 and the left and right operation guide rib 1904, the cross-sectional shape, the length, and the like are appropriately determined in consideration of the size and weight of the suction main body 1080. For example, as shown in FIG. 58, the vertical operation guide ribs 1903 and the left and right operation guide ribs 1904 are substituted by badges 1905 as separate members,
The badge 1905 may be appropriately fixed to a hose material with screws or screws. According to this structure, a similar effect can be obtained by using an existing hose material. Moreover,
If decoration or color is applied to the badge 1905, the number of models and the design can be improved.

As described above, according to this embodiment,
The same effect as in the above embodiment can be obtained with a reduced number of parts and a simple structure. Moreover, since the weight can be reduced, it is suitable for a suction body having a simple structure that does not use a rotating brush as shown in FIG. 29 and a suction body of a handy cleaner that needs to be reduced in weight.

(Other Embodiments) FIGS. 59 and 60 show another embodiment relating to the handle at hand. FIG. 59 and FIG.
0 is an operation conceptual diagram.

In FIG. 59, in this embodiment, the connection between the hand handle 310 and the connection pipe 410 is attached so as to be rotatable in the direction of the central axis Q of the connection pipe 400. (A)
Is provided with a non-slip grip 411 at the upper end of the connecting pipe 400, and (b) shows a configuration in which a rotating handle 412 is provided at the upper end of the connecting pipe 400.

According to this embodiment, the handle portion 301 of the handle 310 is held with one hand and the grip 411 or the rotating handle 412 is operated with the other hand, so that the mouthpiece can be rotated without rotating the handle 310. You can rotate your body. Moreover, the handle 31 at hand
0 is not rotated, so that the rotation P2 of the suction body in the left-right direction X
Even if the angle is 180 degrees or more, the operation is not hindered.

Next, FIG. 60 shows another embodiment relating to the handle portion of the handle at hand. The hand handle 320 according to this embodiment is formed so as to bend and attach the connection pipe 400 and the suction hose 200, and the handle section 322 which is located at the position of the bending section 321 and substantially orthogonal to the central axis Q of the connection pipe 400. Is provided. Also, the handle portion 322
A wrist holding body 323 is provided on the suction hose 200 side behind.

According to this embodiment, the handle portion 32
2 can be held with one hand and the held wrist can be stabilized by the wrist holding body 323, so that the twisting operation with the hand handle 320 is easy and the operation with the hand handle 320 centered on the elbow. , The burden on the wrist can be reduced. In particular, in this embodiment, it is difficult to lift the mouthpiece with one hand because the burden on the wrist is large with the conventional handle, but in this embodiment, the wrist is fixed by the wrist holder 323. Therefore, the operation of lifting the mouthpiece around the elbow becomes easy. In addition, if the handle 322 is provided with the infrared transmitter 303, transmission through the ceiling becomes better, and erroneous operations can be reduced.

Next, FIGS. 61 and 62 are external views in which the mouthpiece employed in the above embodiment is applied to another type of vacuum cleaner, and FIG. 61 is an external view of a vacuum cleaner called a stick type. FIG. 62 is an external view of a handy type vacuum cleaner.

In the above-described embodiment, the description has been made of the vacuum cleaner including the main body of the vacuum cleaner having wheels, the suction hose, the handle at hand, the connecting pipe, and the suction body. However, the present invention is not limited to this. is not. For example, FIGS. 61 and 62 show one example.

In FIG. 61, in this embodiment, a vacuum cleaner main body 150 having a blower for sucking dust is provided.
A suction body 550 attached to one longitudinal end of the vacuum cleaner main body 150 and communicating with the blower, and a hand handle 300 attached to the other longitudinal end of the vacuum cleaner main body 150, The mouthpiece 550,
Suction port body 1 provided with suction port for sucking dust on the bottom surface
000 and the suction main body 1000 to the vacuum cleaner main body 150, and a free connecting part for synchronizing the rotation angle P1 of the hand handle 300 transmitted through the vacuum cleaner main body 150 with the rotation angle P2 of the suction body. 1530. Reference numeral 151 denotes a sub handle of the vacuum cleaner main body 150.

A vacuum cleaner shown in FIG. 62 has a vacuum cleaner body 150 having a blower for sucking dust.
And a suction body 550 attached to one longitudinal end of the vacuum cleaner main body 150 and communicating with the blower. A handle 161 is formed at the other end of the vacuum cleaner main body 150 in the longitudinal direction. The suction body 550 includes a suction main body 1000 having a suction port for sucking dust on a bottom surface, and the suction main body 1000 connected to the vacuum cleaner main body 150.
A universal connecting portion 1530 for synchronizing the rotation angle P1 of the handle 161 with the rotation angle P2 of the mouthpiece is provided.

According to the embodiment shown in FIGS. 61 and 62, it is possible to obtain the same effect as that of the above-described embodiment. Although the above embodiment has been described with the mouthpiece 550 not shown in the drawings, any structure may be used as long as the mouthpieces 500, 560, etc. described so far. The operability can be further improved if the operation unit is provided near the handle 300 at hand or the handle 161.

In addition, the present invention can also be applied to a vacuum cleaner called a central cleaner for connecting a suction hose, a hand handle, a connecting pipe, and a mouthpiece to a dust conveying path provided in a house.

Further, in the embodiments described above, the description has been made mainly of the mouthpiece employing the rotating brush, but the present invention is not limited to this. Further, the driving method of the rotating brush is not limited to the air turbine system.

Further, according to the embodiment described above, there is provided a suction body for a vacuum cleaner capable of efficiently rotating the suction body by rotating the hand handle, and a vacuum cleaner provided with the suction body. be able to.

Specifically, a vacuum cleaner body provided with a blower for sucking dust, a flexible suction hose having one end attached to the vacuum cleaner body and communicating with the blower, A handle attached to the other end of the handle and communicating with the blower, a connection pipe attached to the handle and connected to the suction hose, and a suction body attached to the connection pipe and connected to the connection pipe. The suction body is configured to have a suction body provided with a suction port for sucking dust, and the suction body is connected to the connection pipe;
Since the free connecting portion for synchronizing the rotation angle of the hand handle and the rotation angle of the mouthpiece transmitted through the connection pipe is provided, the mouthpiece can be efficiently rotated by the rotation of the handwheel.

Further, by providing a sliding member around the mouthpiece provided with the free connecting portion, the sliding member can be moved along a wall surface or the like. Further, by providing a moving means capable of moving in the front-back, left-right direction in the mouthpiece,
It can be moved in the longitudinal direction of the mouthpiece. Further, by providing the dust guide means between the suction port and the distal end of the mouthpiece, the space between the suction port and the distal end can be cleaned, so that the cleanliness of the wall can be improved.
In addition, the sliding member around the suction body or the moving means in the left-right direction may be a suction cleaner provided in a longitudinal direction of the suction body or a rotary cleaning body provided in the suction port, and further a longitudinal direction of the dust guide means. , Cleaning performance can be improved. As described above, the mouthpiece is turned by the twisting operation of the hand handle, and the mouthpiece is smoothly moved along the wall surface without damaging the wall surface, so that dust on the wall can be efficiently sucked and cleaning performance can be improved. .

Further, since the free connecting portion is constituted by a plurality of indirect hinge portions, the rotating operation of the handle at hand can be directly converted into the rotating operation of the mouthpiece. Also,
Since the flexible connecting portion is composed of a flexible connecting hose communicating the suction body and the connecting pipe, and a plurality of indirect hinge portions provided so as to wrap the connecting hose, the entire flexible connecting portion is made compact. In addition, the connecting hose can be minimized, and the connecting hose can be protected by an indirect hinge.

Further, the universal hinge portion comprises a first universal connection portion and a second universal connection portion, and the first mechanism portion and the second mechanism portion are the first rotation portion rotating in the X direction. A rotatable shaft provided with a rotating shaft; and the first mechanism unit rotatably mounted with the suction body and a second rotating shaft rotating in the Y direction. Be attached to the connecting pipe. Specifically, the universal connecting portion is composed of a first universal connecting portion (upper arm) and a second universal connecting portion (lower arm) rotatably attached by a first indirect hinge. A first universal connecting portion is attached to the connection pipe so as to be fixed, and the second universal connecting portion is attached to the suction port main body by a second joint hinge having an axial direction orthogonal to the axial direction of the first joint hinge. Since it is rotatably mounted, the first indirect hinge allows the hand handle to move in the left-right direction, and the second indirect hinge allows the hand handle to operate in the height direction. In addition, the movement to the left and right and the turning performance can be improved.

Further, by setting the operation range of the first indirect hinge (first rotation shaft) to a range of 180 degrees or more, it is possible to improve the cleaning performance of a narrow clearance. In addition, the operation range of the second joint hinge (second rotation axis) is set to 90.
By setting it to a degree or higher, it is possible to store it in a standing position with the hand handle, the connection pipe, and the mouthpiece connected. Further, the mouthpiece can be turned by 90 degrees or more by a combination of the operation ranges of the first and second indirect hinges.

Further, by setting the length of the free connecting portion to be equal to or larger than the diameter of the allowable bending arc of the suction hose, the turning performance of the suction body can be improved. Further, the free end of the free connecting portion composed of the plurality of indirect hinge portions,
By connecting by pulling with a pulling member such as a connecting hose, straightness and turning performance can be improved.

Further, by providing a posture holding mechanism (locking mechanism) for holding the universal joint composed of the plurality of indirect hinge portions at a predetermined angle in the indirect hinge portion, it is possible to improve the straightness and maintain the posture. Can be. Further, if the posture holding mechanism is provided in the indirect hinge portion that enables rotation in the left-right direction, straightness can be improved.

Further, by mounting the free connecting portion on one side in the short direction of the mouthpiece main body, the overall thickness can be reduced. In addition, the swivel body is turned 90 degrees, and the free connecting portion is attached to the upper surface of the suction body so as not to protrude from the projected area of the suction body. Can be improved. In addition, storage and packing can be improved.

Further, by providing a free connecting portion so that the position of the center of gravity of the suction main body is substantially on the extension of the connection pipe, the turning performance of the suction body can be improved.

A dust suction port for sucking dust is provided on the bottom surface of the suction main body, and at least a front portion of the bottom surface (an end portion of the bottom surface at a position facing the short direction where the free connecting portion is attached).
By providing a guide means for guiding the dust to the suction port for sucking the dust, for example, a member having a small coefficient of friction such as a brush or a groove, it is possible to improve the cleaning performance near the wall.

At least a sliding member such as a brush material, a tire, or a wheel is provided on a peripheral side of the suction main body at a position opposed to the short side direction to which the free connecting portion is attached, so that the suction body is formed along a wall surface or the like. It can be moved, and damage to the wall surface and the like can be reduced.

Further, by providing a moving means such as a wheel or a projection having a low friction coefficient having excellent mobility in the left-right direction in addition to the front-rear direction on the bottom surface, the straightness, the left-right direction and the turning property of the suction body are improved. Can be done. In particular, the above effect can be further improved by arranging the moving means around the position of the center of gravity of the mouthpiece main body or the vicinity on the substantially extended line of the connection pipe. In addition, if the moving means is provided behind the attachment position of the universal connecting portion, it is possible to reduce the floating of the distal end portion of the mouthpiece, thereby improving the traveling effect.

[0283] Further, the suction body is formed by arranging an upper case in a lower case having a suction port on a lower surface, and a rotary cleaning body provided in a suction port of the suction body. A driving means for driving the rotary cleaning body, a second universal connecting portion provided with a casing having a suction passage provided at a rear portion of the mouth opening main body, and a second universal connecting portion provided behind the second universal connecting portion. A second universal connection with a connection fitting at the end;
A suction body having a flexible suction hose communicating the rear end of the casing and the connection pipe joint, and connecting the suction hose to the first universal connection portion and the second universal connection; The second universal connecting portion is mounted inside the portion, and the second universal connecting portion is swingably mounted in a vertical direction via a second hinge supported on both sides by the suction port main body. The swing mechanism is provided with an air turbine mechanism by swinging in the left and right direction via a first hinge having a rotation axis direction orthogonal to the rotation axis direction of the second hinge at the rear part of the two universal connecting portions. It is possible to provide a compact mouthpiece having excellent properties.

[0284] Further, the mouthpiece comprises a mouthpiece body provided with a suction port for sucking in dust and a free connecting portion, and a connecting portion for directly or indirectly connecting the free connecting portion to the handle at hand. A connection hose having one end connected to the suction main body and the other end connected to the connection portion to form a dust transfer path; and a connection hose connecting the connection portion and the suction main body and transmitting the dust through the connection portion. By configuring the rotation angle of the hand handle and the rotation angle of the suction body to be synchronized with each other, it is possible to provide a suction body having a compact swing hinge part and excellent turning performance.

At this time, the universal hinge is connected to a first Y-shaped body provided in the mouthpiece main body, a second Y-shaped body attached to the connection joint, the first Y-shaped body and the second Y-shaped body. By making the rotation axis orthogonal to the character and connecting the two Y-characters so as to be rotatable about the intersection of the two, it is possible to reduce the size of the hinge part excellent in turning performance. it can.

[0286] Further, the mouthpiece comprises a mouthpiece main body and a free connecting portion, and the free connecting portion is rotatably attached to the mouthpiece main body and has a cylindrical lower arm portion enabling rotation in a vertical direction. , One end of which is attached to the connection pipe, and the other end of which is composed of the lower arm and a cylindrical upper arm which is attached so as to be able to rotate in the left-right direction, and freely connects the lower arm and the upper arm. By configuring the parts to communicate in the operation range, the number of parts can be reduced, and the turning performance can be improved with a simple structure.

[0287] The mouthpiece comprises a mouthpiece body, and a free connection hose having one end connected to the suction body and the other end provided with a connection portion for mounting to a connection pipe. The projecting portion is constituted by a hose body that is alternately continuous in the pipe direction, and vertical operation guide means are provided on both sides on the mounting side of the suction main body, and on the connecting portion side, the vertical portion orthogonal to the mounting position of the vertical operation guide means By providing the left and right operation guide means, the hose body is prevented from being twisted,
The number of parts can be reduced, the weight can be reduced, and the turning performance can be improved with a simple structure.

[0288]

As described above, according to the present invention, the mouthpiece and
To rotate the connected pipe around its axis.
More, the posture of the mouthpiece when moving back and forth for cleaning
(Direction) can be changed easily and easily between left and right and depth
Can improve operability and cleanability.
And can provide electric cleaning and its suction body
I can .

[Brief description of the drawings]

FIG. 1 is an external perspective view of a vacuum cleaner showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 2 is a structural view of a suction body showing one embodiment of the electric vacuum cleaner according to the present invention.

FIG. 3 is a cross-sectional view of a planar arrangement of a mouthpiece showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 4 is a cross-sectional view of the side arrangement of the mouthpiece showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 5 is a cross-sectional view of a side arrangement configuration of a mouthpiece showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 6 is an external perspective view of a mouthpiece showing one embodiment of the electric vacuum cleaner according to the present invention.

FIG. 7 is an external side view of the mouthpiece showing one embodiment of the electric vacuum cleaner according to the present invention.

FIG. 8 is an external rear view of the mouthpiece showing one embodiment of the electric vacuum cleaner according to the present invention.

FIG. 9 is a bottom view of the mouthpiece showing one embodiment of the electric vacuum cleaner according to the present invention.

FIG. 10 is a diagram showing a mechanism for attaching and detaching a front upper cover of the vacuum cleaner according to one embodiment of the present invention.

FIG. 11 is a sectional view of a main part of a sliding member showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 12 is another application explanatory view of the sliding member showing one embodiment of the electric vacuum cleaner according to the present invention.

FIG. 13 is a mechanism diagram of a retractable wheel showing one embodiment of the electric vacuum cleaner according to the present invention.

FIG. 14 is a sectional view of another application example of the wheel showing one embodiment of the electric vacuum cleaner according to the present invention.

FIG. 15 is a diagram showing a lock mechanism of a first rotating shaft showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 16 is a structural view of another application example of the first rotating shaft showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 17 is a structural view of another application example of the first rotating shaft showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 18 is a lock mechanism diagram of a second rotating shaft showing one embodiment of the electric vacuum cleaner according to the present invention.

FIG. 19 is a use state diagram showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 20 is a use state diagram showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 21 is a use state diagram showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 22 is a use state view showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 23 is a storage state diagram showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 24 is a storage state diagram showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 25 is an operation principle diagram of a mouthpiece showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 26 is a cross-sectional view of a mouthpiece showing a second embodiment of the vacuum cleaner according to the present invention.

FIG. 27 is a storage state diagram showing a second embodiment of the vacuum cleaner according to the present invention.

FIG. 28 is an operation principle diagram of a mouthpiece showing a second embodiment of the vacuum cleaner according to the present invention.

FIG. 29 is an external perspective view of a vacuum cleaner showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 30 is a view showing the structure of parts of a suction body showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 31 is a cross-sectional view of a planar arrangement of a mouthpiece showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 32 is a cross-sectional view of the side arrangement of the mouthpiece showing the third embodiment of the vacuum cleaner according to the present invention.

FIG. 33 is an external perspective view of a mouthpiece showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 34 is an external side view of a mouthpiece showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 35 is an external rear view of a mouthpiece showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 36 is a bottom view of a mouthpiece showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 37 is a cross-sectional view of a main part of a sliding member showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 38 is an external perspective view of a free connecting portion showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 39 is a plan view of a free connecting portion showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 40 is an assembling process diagram of a universal connecting portion showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 41 is an explanatory view of an application example of another free connection portion showing the third embodiment of the vacuum cleaner according to the present invention.

FIG. 42 is an operation principle diagram of a mouthpiece showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 43 is a use state diagram showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 44 is a use state diagram showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 45 is a use state diagram showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 46 is a use state diagram showing a third embodiment of the vacuum cleaner according to the present invention.

FIG. 47 is an external perspective view showing a fourth embodiment of the vacuum cleaner according to the present invention.

FIG. 48 is a component configuration diagram showing a fourth embodiment of the vacuum cleaner according to the present invention.

FIG. 49 is a structural view of a universal hinge showing a fourth embodiment of the vacuum cleaner according to the present invention.

FIG. 50 is an external bottom view showing a fourth embodiment of the vacuum cleaner according to the present invention.

FIG. 51 is a schematic sectional view showing a fourth embodiment of the vacuum cleaner according to the present invention.

FIG. 52 is an explanatory view of a use state showing a fourth embodiment of the vacuum cleaner according to the present invention.

FIG. 53 is a schematic perspective view showing a fifth embodiment of the vacuum cleaner according to the present invention.

FIG. 54 is a schematic sectional view showing a fifth embodiment of the vacuum cleaner according to the present invention.

FIG. 55 is a structural conceptual diagram showing a sixth embodiment of the vacuum cleaner according to the present invention.

FIG. 56 is a structural conceptual diagram showing a seventh embodiment of the vacuum cleaner according to the present invention.

FIG. 57 is an enlarged view of a freely connecting hose showing a seventh embodiment of the vacuum cleaner according to the present invention.

FIG. 58 is a structural conceptual diagram of another applied example showing the seventh embodiment of the vacuum cleaner according to the present invention.

FIG. 59 is a schematic external perspective view of a hand handle showing another embodiment of the vacuum cleaner according to the present invention.

FIG. 60 is a schematic external perspective view of a hand handle showing another embodiment of the vacuum cleaner according to the present invention.

FIG. 61 is an external view showing another embodiment of the vacuum cleaner according to the present invention.

FIG. 62 is an external view showing another embodiment of the vacuum cleaner according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vacuum cleaner, 100 ... Vacuum cleaner main body, 200 ... Suction hose, 300 ... Hand handle, 301 ... Handle part, 400 ... Connection pipe, 500, 550 ... Suction body, 100
0: suction body, 1001: lower case, 1002: front upper cover, 1003: rear cover, 1005: suction chamber, 1
006: mounting part, 1007: ventilation path, 1010: suction port,
1011 ... rotating brush, 1012 ... turbine, 1016
... Ventilation hole, 1017 ... Viewing window, 1020 ... Thick part, 10
DESCRIPTION OF SYMBOLS 21 ... groove part, 1022 ... opening / closing lever, 1023 ... hand-holding concave part, 1031 ... front upper cover mounting part, 1033 ... bumper part, 1037 ... mounting rib, 1100 ... sliding member, 11
01 ... brush 1101, 1102 ... brush stand, 1103 ... roller, 1200 ... wheel, 1201 ... front wheel, 1202
... rear wheel, 1203 ... rearmost wheel, 1203a ... rearmost wheel, 1210 ... sliding member, 1211 ... rotation axis, 121
2 ... recess, 1213 ... C-cut surface, 1214 ... brush, 1
215: brush stand, 1261: front wheel, 1262: rear wheel, 1263: rear wheel, 1264: haunting wheel, 1
300: guide means, 1302: flat part, 1310: bundle of brushes, 1311: brush row, 1312: flow path, 1313
... brush table, 1314 ... brush, 1315 ... flow path, 1500
... Universal connection part, 1501 ... Connection hose, 1502 ... Universal hinge, 1502a ... Lower arm part, 1502b ... Upper arm part, 1
503: rotating shaft, 1504: rotating shaft, 1505: rotating shaft hole, 1506: pin, 1507 ... connecting portion, 1510, 1
511, 1512, 1513 ... notch, 1516 ... lock mechanism, 1517 ... convex, 1518 ... concave, 1519 ...
Fitting hole, 1520: convex rib, 1521: connecting portion, 153
0: universal connecting portion, 1531: lower arm portion, 1532: upper arm portion, 1533: first rotating shaft, 1534: lock ring, 1535: second rotating shaft portion, 1537: shutter mechanism, 1553: locking mechanism B1 Pipe axis of lower arm, B2 ...
Pipe axis of upper arm, Q: center axis of the connection pipe, P1: twist rotation of hand handle, P2: rotation of suction body, X: rotation in left and right direction, Y: rotation in height direction, V1: left and right of suction body , The moving direction of the mouthpiece in the front-back direction.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masaru Oda 1-280 Higashi-Koikekubo, Kokubunji-shi, Tokyo Inside Hitachi, Ltd.Design Research Institute (72) Inventor Taku Owada 1-1-280 Higashi-Koikekubo, Kokubunji-shi, Tokyo Hitachi (72) Inventor Masao Sunagawa 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside the Electric Appliances Division, Hitachi, Ltd. (72) Atsushi Yamaguchi 1-1-1, Higashitaga-machi, Hitachi City, Ibaraki Prefecture No. Hitachi, Ltd.Electrical Equipment Division (72) Inventor Shigehiko Suzuki 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside Hitachi, Ltd.Electrical Equipment Division (72) Inventor Gen Nagai 1-chome, Higashi Koikebo, Kokubunji City, Tokyo 280 Hitachi Design Co., Ltd. Design Laboratory (72) Inventor Koichi Niwa 1-1-1 Higashitaga-cho, Hitachi City, Ibaraki Pref. Hitachi, Ltd. Electrical Equipment Division (56) References JP-A-5-176870 (JP, A) JP-A-8-289861 (JP, A) Opened Sho 62-10856 (JP, U) Opened Sho 63-103547 (JP, U) Opened Sho 63-125956 (JP, U) Opened Sho 63-1221049 (JP, U) Opened Sho 61-58619 ( JP, U) JIJU 41-5895 (JP, Y1) JIJU 41-6607 (JP, Y1) (58) Fields investigated (Int. Cl. ⁶ , DB name) A47L 9/02 A47L 9/24

Claims (13)

(57) [Claims] 1. A vacuum cleaner main body having means for sucking dust together with an air flow, a suction body having a suction opening for sucking dust, and the electric cleaning of dust sucked from a suction opening of the suction body. A connection pipe forming an air passage for leading to the main body of the vacuum cleaner, wherein the suction body is moved, and dust sucked from the suction port is guided to the main body of the vacuum cleaner through the connection pipe, thereby forming a cleaning surface. In the vacuum cleaner configured to perform cleaning, the suction body includes a suction body having a length in the left-right direction longer than a length in a depth direction, and connects the suction body to the connection pipe and dusts therein. A free connecting portion that forms a ventilation path for guiding, wherein the free connecting portion is made of a resin molded product, and has a hollow lower arm portion and an upper arm portion each having a ventilation passage formed on its own inner surface. With One end and one end of the upper arm of the serial lower arm portion includes a first rotation which overlaps the inner periphery surfaces of the hollow of each other
The other end of the lower arm is rotatably connected by a shaft ,
A second axis having an axis in the same direction as the left-right direction of the suction body ;
Rotatably connected to the suction port body by the rotating shaft, the other end of the upper arm is connected to the connecting tube, said second axis of rotation, rotation of the elevation direction the connecting pipe to the cleaning surface Enabling the first rotation axis to rotate the connection pipe in a direction orthogonal to the rotation direction of the second rotation axis , and a rotation surface orthogonal to the axis of the first rotation axis ; By arranging the pipe axis of the connection pipe connected to the upper arm portion substantially in parallel, and rotating the connection pipe around the pipe axis,
Connection from a state that the longitudinal direction of the cleaning depth direction of the suction port body, wherein the possible changes to the suction port state to the longitudinal direction of the cleaning in the lateral direction of the body, also, a bottom surface of the suction port body and the upper arm Before
A vacuum cleaner wherein the pipe axis of the connecting pipe can be perpendicular to the pipe axis . 2. The vacuum cleaner according to claim 1, wherein the connection pipe is connected to the suction main body and the upper arm.
A vacuum cleaner provided with a lock mechanism that locks the first rotation shaft and the second rotation shaft when the shafts are perpendicular to each other. 3. The vacuum cleaner according to claim 1, wherein a left-right direction of the suction body and a pipe axis of the connection pipe connected to the upper arm are substantially parallel when viewed in a projected state on a plane. A vacuum cleaner characterized by being able to take a state. 4. The vacuum cleaner according to claim 1 , wherein the vacuum cleaner is an extension of a cleaning surface passing through the rotation surface orthogonal to an axis of the first rotation shaft , And, as the point where the extension line perpendicular to the axis of the second rotation shaft intersects with the cleaning surface rises the connection pipe with respect to the cleaning surface, the
A vacuum cleaner having a structure approaching directly below a rotation axis of the first vacuum cleaner. 5. The vacuum cleaner according to claim 1 , wherein the vacuum cleaner is an extension of a cleaning surface passing through the rotation surface orthogonal to an axis of the first rotation shaft , And the point where the extension line perpendicular to the axis of the second rotating shaft intersects with the cleaning surface is the point where the connecting pipe forms an angle of 45 ° with the cleaning surface .
1 is located at a position immediately below the rotation axis , and as the connection pipe is further raised from the state with respect to the cleaning surface, the point where the extension line intersects the cleaning surface is the first rotation.
An electric vacuum cleaner having a structure approaching directly below a shaft . 6. The vacuum cleaner according to claim 1, wherein the lower arm and the upper arm are bent and connected to each other in the vicinity of the first rotation axis. wherein the lower arm portion first
A tube axis orthogonal to the axis of the second rotary shaft, connected to the upper arm
A vacuum cleaner having a structure in which a pipe axis of the connection pipe is substantially parallel. 7. The vacuum cleaner according to claim 1, wherein one end of the vacuum cleaner is connected to the main body of the vacuum cleaner to form a ventilation path for guiding dust to the main body of the vacuum cleaner. A suction hose, and a hand handle having one end connected to the other end of the suction hose and the other end connected to the connection pipe, wherein the hand handle allows the mouthpiece to be moved back and forth for cleaning. A vacuum cleaner characterized in that the connection pipe can be rotated around its pipe axis by twisting the hand handle. 8. A suction body having a suction surface for sucking dust on a lower surface thereof, the suction body having a length in the left-right direction longer than the length in the depth direction, and a device for guiding dust sucked from the suction opening of the suction body to the cleaner body. A free connection portion for connecting the suction port body to a connection pipe forming a ventilation passage, wherein the free connection portion is formed of a resin molded product, and a hollow having a ventilation passage formed on its own inner surface. and a lower arm portion and the upper arm of the shape, one ends of said upper arm portion of the lower arm portion has a first rotation which overlaps the inner periphery surfaces of the hollow of each other
The other end of the lower arm is rotatably connected by a shaft ,
A second rotation having an axis parallel to the left-right direction of the suction body.
The other end of the upper arm is connected to the connection pipe by a shaft , the other end of the upper arm is connected to the connection pipe, and the second rotation axis is a pipe axis of a part of the upper arm connected to the connection pipe. to allow the rotation of the elevation direction relative to the cleaning surface, the first axis of rotation, the tube axis of the portion to be connected to the connecting pipe in the upper arm portion and the second round
Rotation in a direction orthogonal to the rotation direction of the rotation axis is enabled, and a rotation surface orthogonal to the axis of the first rotation axis and a pipe axis of a portion of the upper arm connected to the connection pipe are substantially parallel to each other. By rotating around the pipe axis of the part of the upper arm connected to the connection pipe, the left-right direction of the suction main body is changed from the state in which the depth direction of the suction main body is set to the front-rear direction of cleaning. It is possible to change to a state to be the front and rear direction of the cleaning, and that the bottom surface of the suction main body and the pipe axis of the part connected to the connection pipe in the upper arm part can be in a vertical state. Characteristic mouthpiece of vacuum cleaner. 9. The suction body of the vacuum cleaner according to claim 8, wherein when the suction pipe main body and a pipe axis of a portion of the upper arm connected to the connection pipe are perpendicular to each other, No.
A mouthpiece for a vacuum cleaner, comprising a lock mechanism that locks the first rotation shaft and the second rotation shaft . 10. The suction body of the vacuum cleaner according to claim 8, wherein a pipe axis of a portion connected to the connection pipe in the left-right direction of the suction main body and the upper arm portion when viewed in a projected state on a plane.
Suction body of the vacuum cleaner, characterized in that bets were to be taken substantially parallel state. 11. The suction body of an electric vacuum cleaner according to claim 8, wherein an extension line to a cleaning surface passing through the rotation surface orthogonal to an axis of the first rotation shaft. accordance matching, and is an extension perpendicular to the axis of the second rotation axis, that intersects the cleaning surface, gradually is raised relative to the cleaning surface the upper arm, the first
A suction body for a vacuum cleaner, wherein the suction body has a structure approaching directly below a rotation shaft of the first vacuum cleaner. 12. The suction body of a vacuum cleaner according to claim 8, wherein an extension line to a cleaning surface passing through the rotation surface orthogonal to an axis of the first rotation shaft. The point at which the extension line perpendicular to the axis of the second rotation shaft intersects the cleaning surface is that the pipe axis of the upper arm connected to the connection pipe is at 45 ° to the cleaning surface. In the state of making an angle, the position is located just below the first rotation axis , and further from this state, the pipe axis of the part connected to the connection pipe in the upper arm portion with respect to the cleaning surface. The suction body of a vacuum cleaner according to claim 1, wherein a point where the extension line intersects a cleaning surface approaches a position immediately below the first rotation axis as the user stands up. 13. The suction body of a vacuum cleaner according to claim 8, wherein the lower arm and the upper arm are bent and connected near the first rotation axis. It is, the in the lower arm portion first
A suction port of the vacuum cleaner, wherein a pipe axis orthogonal to the axis of the rotation shaft and a pipe axis of a portion of the upper arm connected to the connection pipe are substantially parallel to each other. body.