JPH10262879A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to move a suction body along a wall surface without damaging the wall surface by interconnecting a suction main body to a connective pipe which is attached to a handy handle, equipping a free coupling part which synchronizes the rotation angle of the handy handle and that of the suction body, and providing a sliding member in the periphery of the suction body. SOLUTION: A vacuum cleaner 1 has a handy handle 300, to which a connective pipe 400 is attached, and a suction body 500 is attached to the connective pipe 400. The collective pipe 400 is equipped with a transmission function in such a way as to make the movement of the handy handle 300 as that of a suction body 500 by fixing the handy handle 300 and the suction body 500; that is, a free linking part 1500 which always acts on the bottom plane of a suction main body 1000 to come into contact with the floor surface corresponding to the movement of the handy handle 300, is provided. Further, on both sides in the lengthwise direction, the front part and a part of the back surface the suction main body 1000, a thick part is formed, in which a sliding member 1100 formed by a brush of short hairs of nylon material planted on a brush board, is installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction body in which a user can easily operate the angle of the suction body by operating a handle at hand, and a vacuum cleaner provided with the suction body. It is.

[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.

A first object of the present invention is to provide a vacuum cleaner and a suction body of the vacuum cleaner which can move the suction body along the wall surface without damaging the wall surface in cleaning the wall.

A second object of the present invention is to provide a vacuum cleaner and a suction body of an electric vacuum cleaner which can smoothly move the suction body along the wall surface when cleaning the wall.

A third object of the present invention is to provide a vacuum cleaner and a mouthpiece of the vacuum cleaner which can efficiently clean dust near the wall when cleaning the wall.

[0011]

In order to achieve the first object, according to the present invention, there is provided a vacuum cleaner having a blower for sucking dust, and one end attached to the vacuum cleaner. A flexible suction hose communicating with the blower, a hand handle attached to the other end of the suction hose and communicating with the blower, a connection pipe attached to the hand handle and communicating with the suction hose, A suction body attached to the connection pipe and communicating with the connection pipe, wherein the suction body is provided with a suction body having a suction port for sucking dust, and the suction body is connected to the connection pipe; There is provided a free connecting portion for synchronizing the rotation angle of the hand handle transmitted through the connecting pipe and the rotation angle of the mouthpiece, and further, the mouthpiece is provided with a sliding member around the mouthpiece.

In order to achieve the second object, according to the present invention, the vacuum cleaner and the suction port are connected to a suction body having a suction port for sucking dust, and the suction body is connected to the connection pipe. And, a free connecting portion for synchronizing the rotation angle of the hand handle transmitted through the connection pipe and the rotation angle of the mouthpiece is provided, and the mouthpiece further comprises a moving means movable in front, rear, left and right directions. To do.

In order to achieve the third object, according to the present invention, the vacuum cleaner and the suction port thereof are connected to a suction main body having a suction port for sucking dust, and the suction main body is connected to the connection pipe. A connecting portion for connecting and synchronizing a rotation angle of a hand handle transmitted through the connection pipe with a rotation angle of the mouthpiece; and further, the mouthpiece is provided with the suction port and a tip end of the mouthpiece. And a dust guide means between them.

[0014]

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

(First Embodiment) FIGS. 1 to 26 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 having 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 mouthpiece 500 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 started from the handle 300 at hand.

As described above, since the electric 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 convey 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 mouthpiece 500. 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 Q of the connection pipe 400, the handle is located at a position having an angle of about 110 degrees with the central axis Q, 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, 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. At this time, since the handle portion 301 is provided at the upper portion, the suction hose 200 provided below does not hinder 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 includes an infrared transmitting unit 303
The operation signal is transmitted from the infrared transmitting section 303 to the infrared receiving section 103 provided in the vacuum cleaner main body 100, and the power of the vacuum cleaner main body 100 is turned 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 are provided, the operation signal can be reliably transmitted to the vacuum cleaner main body 100 using the reflection from the ceiling or the wall surface, so that erroneous operations can be reduced.

The connection pipe 400 is connected to the handle 3
00 and the suction body 500, and furthermore, by fixing the hand handle 300 and the suction body 500 at a predetermined position, the movement (movement or rotation) of the hand handle 300 is controlled by the movement (movement or rotation) of the suction body 500. Rotation). In this embodiment, two pipes 401 and 402 having different sizes are combined so as to be expandable and contractible so that they can be fixed at a predetermined position.
00 is detachably attached to the suction body 500 on the other side.

The suction body 500 is provided with a suction body 1010 (see FIG. 2) for sucking dust on the bottom surface.
000 and the suction main body 1000 are connected to the connection pipe 400, and the bottom surface of the suction main body 1000 is freely operated so as to always contact the floor surface in response to the movement of the hand handle 300 transmitted through the connection pipe 400. And a connecting portion 1500.

The suction main body 1000 has a suction opening 1010 (see FIG. 2) provided with a rotating brush 1011 (see FIG. 2) for sucking dust on the floor surface on the bottom surface. The universal connection part 1500 is connected to the suction main body 1000 and the connection pipe 4.
And a flexible hinge 1502 provided 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 hand handle 300 is kept
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 the details will be described later, the elevation direction Y is set so as to be operable within a range of about 90 degrees from the floor surface and in the left-right direction X within a range of about 180 degrees.

The mouthpiece 500 is provided with the mouthpiece main body 10.
Around the sliding member 1100 instead of the conventional bumper
Is provided, a wheel 1200 is provided on the bottom surface for improving the cleaning performance at the wall and smoothing the movement of the suction body 1000 in the longitudinal direction V. Further, the suction body 10
By providing the dust guide means 1300 (see FIG. 8) at the front part (between the tip part) of the suction port 1010 provided on the bottom surface of 00, it is possible to efficiently suck in dust that is difficult to remove.

As described above, the electric 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 500 can be improved. In particular, a significant feature of this embodiment is that the operation of the mouthpiece 500 via the hand handle 300, for example, the rotation P1 of the twisting operation of the hand handle can be directly used as the rotation P2 of the mouthpiece 500. That is, the operation performed by the user with the handle 300 can be smoothly performed as the movement of the mouthpiece 500. Specifically, for example, the hand handle 300
Is twisted 90 degrees (rotation P1), so that the suction body 500
1 can be rotated 90 degrees as shown by the dotted line in FIG. 1 to move the front and rear along the wall surface in the longitudinal direction V of the suction main body 1000, thereby cleaning the floor surface near the wall. At this time, the suction member 500 can be smoothly moved by the sliding member 1100 and the wheels 1200, and it is possible to reduce the possibility of damaging the wall surface. Can inhale well.

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 mouthpiece 500, referring to FIG. 3 showing a cross-sectional view of the planar configuration of the mouthpiece 500 and FIG.
The schematic structure of the mouthpiece 500 will be described.

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 that forms the skeleton of the mouthpiece body 1000, a front upper cover 1002 that covers the front of the mouthpiece body 1000, and the 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 dubbin 1012 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.

A rear upper cover 1003 covers the upper part of the mounting 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. 7) so as to be detachably attached.

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.

Openings 1015 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 covering the ventilation passage 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.

Here, the driving of the rotating 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
When the turbine 1012 is rotated, it gathers at the center while winding around the rotating brush 1011 rotating at a high speed as a swirling flow, together with the air flow containing dust that has been wound up by the rotating brush 1011 sucked from the suction port 1010, and the bellmouth body 1008 , And guided to the vacuum cleaner main body 100 through the universal connection portion 1500.

As described above, according to the present embodiment, the mouthpiece 5
In the case of 00, the turbine 1012 and the rotating brush 1011 are rotated 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 rolled up. .

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. A good example 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 universal connecting portion 1500 is
02a, an upper arm 1502b, and a connecting hose 1501. A rotating shaft 1503 is formed on both sides of one end of the cylindrical lower arm 1502a, and the rotating shaft 1503 is formed on the mounting portion 1006 of the lower case 1001 in the bearing 10.
18 and the bearing portion 101 formed on the rear upper cover 1003
9 so as to be rotatable in the vertical direction (vertical direction in the drawing).

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.

A connecting portion 1507 is formed at the other end of the upper arm portion 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 opposite to the mounting part 1006 to which the flexible connecting part 1500 which is the front part of the mouthpiece 500 is mounted, protrudes outward from the other peripheral side. By forming the thickened portion 1020, the overall steel properties are enhanced, and the thickened portion 1020 is provided with a sliding member 1100 in which hair is implanted with nylon or the like by insert molding.

As described above, the mouthpiece 500 according to this embodiment
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 requiring steel and sealing is solved by attaching the rear upper cover 1003, the number of parts can be reduced and the assembling property 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 1011
Can be simply mounted and the front upper cover 1002 can be attached to complete the assembly, so that the handleability can be improved.

Next, the appearance of the mouthpiece 500 is shown in FIGS.
This will be described in detail with reference to FIG. FIG. 5 is an external perspective view, and FIG.
7 is an external side view, FIG. 7 is an external rear view, FIGS. 8 and 9 are bottom views, FIG. 10 is a cross-sectional view of a main part of the sliding member, FIG. 11 is another application explanatory view of the sliding member, and FIG. FIG.

First, in FIG. 5, the mouthpiece 5 of this embodiment is shown.
00 designates a thin-walled appearance and
0 has a front part extending on both sides, and a mounting part 1006 of the free connection part 1500 arranged at the center of the rear part has a substantially T-shaped planar shape projecting 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. 6 and 4, the side surface shape of the tip end of the suction main body 1000 is formed in a substantially wedge shape having a convex circular arc on the upper surface, so that the rotation chamber of the rotary brush 1011 is secured and the suction chamber is secured. 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. 5, in this embodiment, the thick portion 1020 is formed in a longitudinal direction including four corners that protrude on both sides of the suction main body 1000, that is, a portion where the suction body 500 easily hits furniture or the like. 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.
Sets the brush 1101 having a short bristle of nylon material on the brush base 1
And a groove 10 formed in the thick portion 1020.
By inserting the brush stand 1020 into the brush 21, the brush 11
01 is fixed to the thick portion 1020. 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 make the front part of the suction body 500 extend in the longitudinal direction V along the wall surface or the like.
(See FIG. 1). Therefore, the sliding member 1100 only needs to improve the sliding. For example, as shown in FIG.
3 may be adopted. The better one is roller 11
By providing an elastic material such as rubber or velvet around the tire 03 or forming 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 500 as shown in FIG. A more preferable one can be attached to the corners on both sides of the front part of the mouthpiece 500 to improve the slipperiness. Further, as shown in FIG.
By providing the center portion of the front portion in addition to the corner portions on both sides of the front portion of the zero, it is possible to easily absorb irregularities on the wall surface. The better ones are the four that overhang both sides of the suction body 1000.
The mobility can be improved by providing the center between the two corners and the front part. 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. 5, the brush 1101 is employed as the sliding member 1100. However, the manufacturing cost may be reduced by attaching a velvet or a fiber material by bonding. These sliding materials 1100 can also be expected to have an effect as a bumper function by adopting a thick material.

Further, in the embodiment shown in FIG. 5, the sliding member 1100 is attached to the pressurized portion 1020 of the strong lower case 1001.
Is provided to enhance the steel properties,
By replacing 0 with an elastic material such as rubber or soft resin of another part and providing the sliding member 1100 on the elastic material, it is possible to improve the slip while having a shock absorbing function of preventing damage to furniture and the like. it can. In this case, the airtightness of the suction chamber 1005 can be improved by providing the elastic material on the outer periphery of the position where the lower case 1001 and the front upper cover 1002 are in contact with each other.

Next, referring to FIG. 5, in this embodiment, the size of the suction body 500 is set such that the depth D is 304 mm, the depth D1 of the suction main body, and the root portions protruding on both sides in a state in which the flexible connecting portion 1500 is extended. Are set to 152 mm, 97 mm, and 83 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 FIG. 6 and FIG.
m, the width W is 280 mm, and the width W1 of the suction port 1010 is 22.
It is set to 6 mm.

Next, referring to FIGS. 6 and 7, the mouthpiece 500 according to this embodiment has a flat upper surface with a rounded shape so that dirt on the upper surface can be easily wiped off and a front portion constituting the upper surface. 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 1016 a 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 that is hardly affected by an impact, and have a structure that is hardly damaged by an external force even if it comes into contact with furniture or the like 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.

8 and 9, the lower case 1001
A plurality of wheels 1200 are arranged so as to move the entire suction body 500 in the front-rear direction and the left-right direction V, and to maintain a constant interval between the bottom surface of the suction body 500 and the cleaning surface. The wheel 1200 includes a pair of front wheels 1201 arranged on both sides of a front portion of the bottom surface of the mouthpiece 500, a pair of rear wheels 1202 arranged behind the pair, and an electric vacuum cleaner 1
A pair of rear wheels 1203 are provided for receiving pressure on the cleaning surface during use.

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, in particular, the minimum angle Θ1.

As described above, the mouthpiece 500 according to the present embodiment is characterized in that it is moved in the left-right direction V in addition to the movement in the front-back direction. This left-right direction V
In this embodiment, in order to achieve the movement of the sliding member 1210 around the wheel 1200 as shown in FIG.
Is provided. The wheel 1200 is provided with a rotating shaft 1211 like a normal wheel, and a concave portion 1212 to which the sliding member 1210 is attached is formed on a peripheral side surface serving as a contact surface with the floor surface. A C-cut surface 1213 for improving overcoming is formed. Sliding member 12
10 is a sliding member 11 provided around the mouthpiece 500
00, a brush 1214 with a short bristle of nylon material is planted on a brush base 1215,
The brush 1214 is fixed to the wheel 1200 by inserting the brush table 1215 into the concave portion 1212 formed in FIG. In this embodiment, the brush stand 1215 is attached by dividing the ring-shaped thing into two and sandwiching the wheel 1200. This mounting method is based on the sliding member 1100.
Is the same as Then, the wheel 1200 is connected to the suction body 50.
No. 0 is press-fitted into a bearing of a wheel storage portion formed at the predetermined position on the bottom surface portion.

In this embodiment, the wheels 1200 are used to move the vehicle in the left-right direction V in addition to the movement in the front-rear direction. However, the present invention is not limited to this. For example,
A universal wheel may be used, or the wheel 1 of the mouthpiece 500 may be used.
A protrusion may be formed at a predetermined position where 200 is arranged, and the sliding member 1210 may be provided on the protrusion.

As described above, the mouthpiece 50 according to this embodiment is
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, the traveling performance in the front-rear direction is excellent,
Furthermore, it is possible to obtain a traveling property excellent not only in the left-right direction X but also in the oblique movement and the rotation. In particular, the rearmost wheel 1
203 is a rotary shaft 150 of the universal connecting portion 1500 when used.
3 so that it is located closer to the user,
In particular, it is possible to reduce the lifting of the tip of the suction body 500 when the suction body 500 is retracted. Further, the rotating shaft 1 of the universal connecting portion 1500
Since the mouthpiece 503 is provided in the five-point wheel, even if the mouthpiece 500 is rotated through the hand handle 300,
The inclination of 0 (lift of the corner) can be reduced. Moreover,
Since each wheel 1200 is arranged at a corner of the mouthpiece 500, it is possible to reduce the catch during rotation.

Next, a dust guide 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. 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. 8, the brush rows 1311 are bilaterally symmetrical 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.
It is also possible to embed the hair in the brush 302 or to implant the hair in the brush row 1311 as a group, and to implant the brush in the flat portion 1302.

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 so that dust is easily sucked. be able to. In addition, the mouthpiece 50
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 500 through the suction body 500, the dust can be swept up by the brush bundle 1310 and guided to the suction port 1010 through the flow path 1312.

It should be noted 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.

FIG. 9 shows another application of the embodiment described with reference to FIG. The mouthpiece 500 according to this embodiment is provided with a large rear wheel 1203a at the lower portion of the universal connection portion 1500 that receives the force of the handle 300 at its most, thereby improving the steel quality and the running property. Also, the guide means 1300 of this embodiment
The brush 1314 is implanted with brushes 1314 in the brush table 1313, and the brush table 1313 is embedded at intervals along the longitudinal direction of the flat portion 1302. According to this embodiment, the flow path 13
15, the flow velocity can be increased, and the brushes 1314 are densely provided, so that the effect of wiping the floor can be enhanced.

Also, in this embodiment, the free connecting portion 150
0 may be carved with a flexible sheet, as shown by the dotted line. The sheet may be a rubber material formed in a cylindrical shape, a soft resin formed in a bellows shape, or a woven fabric, 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, based on FIGS.
500 will be described in detail. 13 is an external perspective view of the universal connecting portion, FIG. 14 is a plan view of the universal connecting portion, FIG. 15 is an assembly process diagram of the universal connecting portion, and FIG. 16 is an explanatory diagram of an application example of another universal connecting portion.

13 and 14, first, the mouthpiece 500 according to this embodiment has two arms (lower arm 1502a).
And an upper arm part 1502b) are rotatable about two rotation axes perpendicular to each other.

Specifically, the lower arm 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. 2) formed behind the mounting portion shaft 1006 of the lower case 1001, determines the minimum angle Θ1 of the angle in the height 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 provided for the rear upper cover 10.
Along with the notch 1025 (see FIG. 2) formed at the rear of 03, the maximum angle Θ2 of the angle in the height direction Y is determined. In this embodiment, by setting the angle to about 95 degrees, it is possible to vertically store the mouthpiece 500, the connection pipe 400, and the hand handle 300 in a connected state.

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.
3 has been determined. In this embodiment, the angle Θ3 is formed so as to have an operation range of 180 degrees in total by 90 degrees left and right.

According to this articulated structure, the rotation in the vertical direction Y and the 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 suction body 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 the present embodiment, the upper arm 1502b and the lower arm 1502a are rotatably connected by the pin 1506, but the present invention is not limited to this structure. For example, as shown in FIG. 13B, 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. 14, 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 addition, in this embodiment, the connecting 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.

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, 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. 10A, 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. 13B 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. 16 shows another embodiment in which the assemblability and the disassembly of the flexible connecting portion 1500 are improved. In FIG.
(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. 16, a connecting portion 1521a provided with a packing 1521b similar to 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, an operation method of the electric vacuum cleaner 1 according to the present embodiment will be described with reference to FIGS.

In FIG. 17, first, in the vacuum cleaner 1 according to the present embodiment, the user holds the hand handle 30 in a standing posture.
By keeping 0, the floor can be cleaned by operating the mouthpiece 500 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 500 back and forth through the connection pipe 400 to clean the body, The vertical distance between the handle 300 and the floor is 7
If it is 8 cm or less, cleaning can be performed without putting a burden on hands and arms. The angle is set to the most operable operation range of the user, which is 45 degrees in the vertical direction.
On the other hand, if it is higher than that, it will put a burden on your hands and arms.

Therefore, in this embodiment, the length of the extension tube 10 is set so that the angle of the extension tube 10 becomes 45 degrees. Since the handle portion 301 of the hand handle 300 is set to about 110 degrees, the handle portion 301
The user grasping the extension pipe can easily move forward and backward in the state where the angle of the extension tube 10 is 45 degrees. In addition, since the lower arm 1502a of the universal connection portion 1500 rotates in the height direction Y, the bottom surface of the mouthpiece 500 where the mouthpiece 1010 is provided, so that the mouthpiece 500 moves even if the mouthpiece 500 moves in the front-back direction. The bottom does not rise from the floor. At this time, the rotation in the left-right direction X is performed by rotating the upper arm 1502b in the left-right direction X because the rotation axis in the left-right direction X of the upper arm 1502b is tilted 45 degrees because the extension tube 10 is tilted at 45 degrees. In addition, even if the mouthpiece 500 is moved in the front-rear direction, the movement of the mouthpiece 500 in the left-right direction X can be reduced. Further, in this embodiment, the lock mechanism 1
516 and the connecting hose 1501 provided at the pulling position, the straightness of the mouthpiece 500 can be further improved. In addition, the wheel 1200 provided on the bottom surface of the mouthpiece 500 rotates as a normal wheel around the rotation shaft 1211 to improve the straightness. In particular, the suction body 500 in the front-rear movement by the rear wheel 1203
先端 性 先端 先端 先端 軽 減 良好, 先端 先端 先端 先端 先端 先端. In addition, in this embodiment, the guide means 1300
The brush 1214 and the double brush of the rotating brush 1011 can sweep up the dust on the floor two times 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. 18, 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. 18, (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 in which the handle part is twisted by 90 degrees. FIG. In FIG. 18, three angles are described for convenience of description, but the angle of the twisting operation of the hand handle 300 and the angle of the suction body 500 are linked at any angle in the operation range.

First, in FIG. 9A, both the handle portion 301 and the mouthpiece 500 are in a state suitable for straight running with straight facing.

On the other hand, as shown in FIG. 13B, when the handle portion 301 is twisted by 45 degrees, the direction of the mouthpiece 500 can 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.

As shown in FIG. 10C, when the handle portion 301 is twisted by 90 degrees, the direction of the mouthpiece 500 can be changed to 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 front-rear direction (the left-right direction V) with the mouthpiece 500 lying right beside. This posture is extremely effective for cleaning the wall. This cleaning near the wall will be described with reference to FIG.

In FIG. 20, (a) is a diagram showing the structure of the mouthpiece 50.
Shows a state where the wall is cleaned with 0 lying right next to it,
(B) The drawing shows the suction body 5 with a margin of shoulder width along the wall.
00 shows a state where the wall is cleaned in a state close to the side. Further, FIG. 9C is a diagram showing that by setting an operation range wider than the 180-degree operation range of the present embodiment, narrow clearance cleaning becomes more optimal. 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.

In the state shown in FIG. 19, the suction body 500 right beside can be moved in the front-rear direction (left-right direction V) with the tip end of the suction body 500 in contact with the wall surface. In this state, the sliding member 1100 provided around the suction body 500 can move the wall without damaging the wall surface, and furthermore, the guide means 1300 provided on the bottom surface portion allows the dust between the suction port 1010 and the wall surface to be removed. Can be efficiently sucked.

Next, referring to FIG. 20, the mouthpiece 500 according to this embodiment can reduce the overall height H while maintaining the turning performance of the mouthpiece 500, so that a lower portion of furniture such as a lower portion can be used. Excellent cleanability. In FIG.
(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 FIGS. (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. 5D, the mouthpiece 500 can be directly opposed to the wall surface in the back of the gap without performing a twisting operation. In addition, the facing state can be maintained by the lock mechanism 1516.

(Second Embodiment) Next, FIGS.
, Another embodiment of the vacuum cleaner according to the present invention will be described. The second embodiment differs from the first embodiment in that the mouthpiece 500 of the first 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 second embodiment will be described with reference to FIG. 21 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. 22), and the suction main body 1050 is connected to the connection pipe 400, and the suction main body 1050 is always moved in response 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. 22) provided with a rotating brush 1011 (see FIG. 22) 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 communicating the connecting portion 1601 with the flexible hinge 1602.
The handle 300 near the mouthpiece 510
And a mechanism for transmitting the rotation P1 of the twisting operation of the hand handle 300 directly to the rotation P2 of the mouthpiece main body 1050 as well as being rotatable in the height direction Y and the horizontal direction X. 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, the first Y-shaped body 1604 and the second Y-shaped body 1605 Is connected to the Y-shaped body 1604 and 1605 so as to be rotatable about an intersection S1 where the rotation axis is perpendicular to the connecting shaft 160.
6.

In this embodiment, although the details will be described later, the operation in the elevation direction Y can be performed in a range of about 90 degrees or more from the floor surface and in the left-right direction X is 180 degrees or more.

The mouthpiece 510 is provided on the suction body 10.
By providing the sliding member 1100 around the periphery 50, the cleaning ability near the wall is improved, and the universal wheel 1250 (see FIG. 24) for smoothing the movement of the mouthpiece 1050 in the longitudinal direction V is provided on the bottom surface. Further, the suction main body 1050
By providing the dust guide means 1300 (see FIG. 24) at the front part (between the tip part) of the suction port 1010 provided on the bottom surface of the base, it is possible to efficiently suck 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 suction body 510 according to the present embodiment.
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. FIG. 22 is a structural view of parts, FIG. 23 is a structural view of a universal hinge, FIG.
5 is a schematic sectional view, and FIG. 26 is an explanatory view of a use state.

First, the components of the mouthpiece 510 will be described with reference to FIGS. 22 and 25. FIG. 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. .

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. 25, 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 the intersection S1
It has a structure that enables rotation on both axes by going straight at a point.

A rotating shaft 160 is provided inside the distal end of the first Y-shaped body 1604 provided on the suction main body 1050 and the second Y-shaped body 1605 attached to the connecting portion 1601.
4a and 1405a are provided, respectively,
6 are rotatably mounted in bearing holes (not shown).
Further, this universal hinge 1602 has a rotation axis Y1 and a rotation axis X.
1 is an articulated hinge, as in the first embodiment, although it goes straight at one point of the intersection S1. For this reason,
Also in this embodiment, in addition to the elevation 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 can be transmitted to the suction main body 1050, and the suction body 510 can be turned. Therefore, the rotation axis Y1 and the rotation axis X1 do not have to intersect at one point of the intersection S1. However,
The intersection at the intersection S allows the free hinge 1602 to be 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.

Further, 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. 25 and 26, in this embodiment, the connecting hose 1630 is attached so that the tip of the mouthpiece 510 does not rise so that the angle in the vertical direction Y is 0 degrees. As a result, even when the mouthpiece 510 is inserted into a low gap such as under a desk as shown in FIG.
Even if 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. 25, the extra connecting hose 1630 prevents the posture from being maintained or causes the handwheel to twist. 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, since the connecting hose 1630 forming the dust transfer passage and the supporting member of the suction body 510 are separated, 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 connection pipe 400 is shortened by increasing the length of the second Y-shaped body 1605, or by removing the connection pipe 400 and directly forming a long handle directly on 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 supporting 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 second embodiment,
The same effect as that of the first embodiment can be expected, and the dust conveyance path and the support member of the suction body 510 are separated, so that the universal hinge 1602 can be made simple and small in 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.

Third Embodiment Next, another embodiment of the vacuum cleaner according to the present invention will be described with reference to FIG.
The third embodiment is different from the mouthpiece 500 of the first embodiment.
The difference is that the attachment position of the universal connection part 1500 is different, and the other vacuum cleaner main body 100 and the like employ the same one. 27A is a schematic external perspective view, and FIG.
The figure is a conceptual diagram of the structure. 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 comprises 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 at 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 semicircular shape having a convex side surface and long in the longitudinal direction, that is, in a so-called semi-circular shape. A hose mounting portion 1064 to which a connecting hose 1501 is mounted is provided at the center of the upper surface. Mounting 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, and a pair of bearing stands 1065 is formed. Installed.

The center 1065a of the bearing 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 forming the side surface of the upper case 1062 into a semicircular shape, and the distal end portion of the mouthpiece 520 (see FIGS. 27 and 28).
On the left) is reduced.

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 moved in the left-right direction X.
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.

A sliding member 1100 similar to that of the above-described embodiment is formed in a belt shape around the side surface of the mouthpiece 520. 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 third embodiment, since the flexible connecting portion 1700 is provided on the upper portion of the mouthpiece main body 1060, the installation area of the mouthpiece 520 can be reduced. For this reason, the cleaning performance of the narrow gap as shown in FIG. 19C is improved. In addition, since the sliding member 1100 is provided around the side surface of the mouthpiece 520, the sliding member 1100 is not frontal. Therefore, 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, it is possible to clean an ascending slope without taking an unreasonable posture (fourth embodiment). A fourth embodiment according to the present invention will be described with reference to FIG. 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 shown.
Is composed of a mouthpiece main body 1070 and a universal connecting portion 1800 formed of a resin material. The universal connecting part 1800
A cylindrical lower arm portion 1801a rotatably attached to the suction main body 1070 and enabling rotation in the height direction Y;
One end is attached to the connection pipe 400, and the other end is composed of the lower arm portion 1801a and a cylindrical upper arm portion 1801b attached to enable rotation in the left-right direction X.

The suction main body 1070 has 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 portion 1801b has an arc-shaped upper surface, a rotating shaft 1805 is provided on 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 the destruction of the device is reduced, and the assembly is further reduced. Performance can be improved.

(Fifth Embodiment) Next, FIGS.
A fourth 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. 29 is a schematic external perspective view, FIG. 30 is an enlarged view of a universal connecting hose, and FIG.
FIG. 1 is a structural conceptual diagram of another application example.

First, in FIGS. 29 and 30, the mouthpiece 540 of this embodiment comprises a mouthpiece 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.

Further, the flexible connection hose 1900 is integrally formed with vertical movement guide ribs 1903 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 の of 507, left and right operation guide ribs 1904 are integrally formed vertically so as to be perpendicular 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 horizontal 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 protrusion amount Z2 of the vertical operation guide ribs 1903 and the left and right operation guide ribs 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. 31, the vertical operation guide rib 1903 and the left and right operation guide rib 1904 are replaced by a badge 1905 of a different member,
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. 32 and 33 show another embodiment relating to the handle at hand. 32 and 3
3 is an operation conceptual diagram.

In FIG. 32, 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 rotation 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. 33 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 that is located at the position of the bending section 321 and substantially perpendicular 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.

In the embodiment described above, the mouthpiece employing the rotating brush has been mainly described, 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, 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 mouthpiece, but the present invention is not limited to this. Not something. For example, a vacuum cleaner main body provided with a blower for sucking dust, a suction body attached to one longitudinal end of the vacuum cleaner main body and communicating with the blower, and a vacuum cleaner main body other than the longitudinal direction of the vacuum cleaner main body. A handpiece attached to the end, wherein the mouthpiece is provided with a suction port for sucking dust,
The suction body may be connected to the vacuum cleaner body, and a universal connection unit may be provided to synchronize the rotation angle of the hand handle transmitted through the vacuum cleaner body with the rotation angle of the suction body. .

In addition to the above, a so-called central cleaner for connecting a suction hose, a hand handle, a connecting pipe, and a suction body to a dust conveyance path provided in a house, or a suction body attached to one end of a longitudinal vacuum cleaner main body. It is also possible to apply the present invention to a vacuum cleaner such as a hand cleaner provided with a handle at the other end.

Further, according to the above-described embodiment, 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 having the suction body. be able to.

More 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, 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.

[0155] Further, the universal connecting portion comprises 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 body by a second indirect hinge having an axial direction orthogonal to the axial direction of the first indirect hinge. Since it is rotatably mounted, it is possible to improve the straightness, the movement to the left and right, and the turning property. Further, 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 move in the height direction.

The operating range of the first indirect hinge is 1
By setting the angle to be in the range of 80 degrees or more, it is possible to improve the cleaning performance of a narrow gap. Further, by setting the operation range of the second joint hinge to 90 degrees or more, the second joint hinge can be stored in the upright posture 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 a predetermined angle at the indirect hinge portion of the universal connecting portion composed of the plurality of indirect hinge portions, 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 attaching the free connecting portion to 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.

Further, the swivel performance of the suction body can be improved by providing the 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.

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).
In addition, by providing a guide means for guiding the dust to the suction port for sucking the dust, for example, a brush, a groove, or the like, it is possible to improve the cleaning performance at the wall side.

By providing a sliding member such as a brush material, a tire, or a wheel on at least a circumferential side of the suction main body at a position facing the short direction where the free connecting portion is attached, the suction body can be 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 moving means such as wheels or protrusions having a low friction coefficient having excellent mobility in the left-right direction in addition to the front-back direction on the bottom surface, the straightness, the left-right direction, and the turning property of the mouthpiece 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.

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. 2 is provided at the rear portion of the two free connection portions via a first hinge having a rotation axis direction orthogonal to the rotation axis direction of the second hinge so as to be swingable in the left-right direction. It is possible to provide a compact mouthpiece having excellent properties.

Further, the suction body comprises a suction main body having 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 on the suction body, a second Y-shaped body attached to the connection joint, and the first Y-shaped body and the second Y-shaped body. By making the rotation axis perpendicular 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.

Further, the mouthpiece comprises a mouthpiece body and a universal connection part, and the universal connection part is attached to the mouthpiece body so as to be rotatable and has a cylindrical lower arm part capable of rotating 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.

The mouthpiece comprises a mouthpiece body and a free connection hose having one end connected to the suction body and another end provided with a connection portion for connection to a connection pipe. The convex portion is constituted by a hose body that is alternately continuous in the pipe direction, and the vertical operation guide means is provided on both sides on the mounting side of the suction body, and the upper and lower portions orthogonal to the mounting position of the vertical operation guide means on the connecting portion side. 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.

[0169]

According to the first aspect of the present invention, the suction body is turned by the twisting operation of the hand handle, and the suction body is moved along the wall surface without damaging the wall surface, thereby improving the cleanability of the wall. be able to.

Further, according to the second aspect of the present invention, the mouthpiece can be turned by the twisting operation of the hand handle, and the mouthpiece can be smoothly moved along the wall surface, thereby improving the cleaning performance at the wall. .

Further, according to the third aspect of the present invention, the suction body can be turned by the twisting operation of the hand handle, and the dust on the wall can be efficiently sucked, thereby improving the cleaning property.

[Brief description of the drawings]

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

FIG. 2 is a structural diagram of a suction body showing an embodiment of the 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 configuration of the side surface of the mouthpiece showing an embodiment of the electric vacuum cleaner according to the present invention.

FIG. 5 is an external perspective view of a mouthpiece showing an embodiment of the vacuum cleaner according to the present invention.

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

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

FIG. 8 is a bottom view of the mouthpiece showing an embodiment of the vacuum cleaner according to the present invention.

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

FIG. 10 is an essential part cross-sectional view of a sliding member showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 11 is another application explanatory view of the sliding member showing the embodiment of the electric vacuum cleaner according to the present invention.

FIG. 12 is a sectional view of a wheel showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 13 is an external perspective view of a free connecting portion showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 14 is a plan view of a universal connecting portion showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 15 is an assembly process diagram of a universal connection portion showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 16 is an explanatory view of an application example of another free connecting portion showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 17 is a use state diagram showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 18 is a use state diagram showing an embodiment of the 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 an external perspective view showing another embodiment of the electric vacuum cleaner according to the present invention.

FIG. 22 is a component configuration diagram showing another embodiment of the electric vacuum cleaner according to the present invention.

FIG. 23 is a structural view of a universal hinge showing another embodiment of the vacuum cleaner according to the present invention.

FIG. 24 is an external bottom view showing another embodiment of the electric vacuum cleaner according to the present invention.

FIG. 25 is a schematic cross-sectional view showing another embodiment of the electric vacuum cleaner according to the present invention.

FIG. 26 is an explanatory view of a state of use showing another embodiment of the vacuum cleaner according to the present invention.

FIG. 27 is a schematic conceptual view showing another embodiment of the vacuum cleaner according to the present invention.

FIG. 28 is a structural conceptual view showing another embodiment of the electric vacuum cleaner according to the present invention.

FIG. 29 is a structural conceptual diagram showing another embodiment of the vacuum cleaner according to the present invention.

FIG. 30 is an enlarged view of a universal connecting hose showing another embodiment of the vacuum cleaner according to the present invention.

FIG. 31 is a structural conceptual diagram of another applied example showing another embodiment of the vacuum cleaner according to the present invention.

FIG. 32 is a schematic external perspective view of a hand handle showing another embodiment of the electric vacuum cleaner according to the present invention.

FIG. 33 is a schematic external perspective view of a hand handle 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 Suction body 1000 Suction main body 1001 Lower case 1002 Front upper cover 1003 Rear cover 1005 Suction chamber 1006 Mounting part 1007 Ventilation path 1010 Suction 1011 Rotary brush 1012 Turbine 1016 Ventilation hole 1017 Peep window 1020 Thick part 1021 Groove 1022 Opening / closing lever 1023 Handle recess 1100 Sliding member 1101 Brush 1101 1102 Brush stand 1103 Roller 1200 Wheel 1201 Front wheel 1202 Rear wheel 1203 Rear wheel 1203 1210 Sliding member 1211 Rotating shaft 1212 Concave part 1213 C cut surface 1214 Brush 1215 Brush table 1300 Guide means 1302 Flat part 310 bundle of brushes 1311 printing line 1312 flow path 1313 brush stand 1314 brush 1315 flow path 1500 free connecting portion 1501 connecting hose 1502 free hinge 1502a lower arm 1502b upper arm 1503 rotating shaft 1504 rotating shaft 1505 rotating shaft hole 1506 pin 1507 connecting Part 1510 1511 1512 1513 Notch part 1516 Lock mechanism 1517 Convex part 1518 Concave part 1519 Fitting hole 1520 Convex rib 1521 Connection part Q Center axis of the connection pipe P1 Twist rotation of hand handle P2 Rotation of suction body X Left-right direction Y Height direction Θ1 Minimum angle Θ2 Maximum angle Θ3 Horizontal angle

Continued on the front page (72) Inventor Masaru Oda 1-1280 Higashi Koikekubo, Kokubunji-shi, Tokyo Inside Hitachi, Ltd.Design Research Laboratories (72) Inventor Shigehiko Suzuki 1-1-1, Higashitaga, Hitachi City, Ibaraki Prefecture Hitachi, Ltd. Inside the Taga Division, Equipment Division (72) Inventor Atsushi Yamaguchi 1-1-1, Higashitaga, Hitachi City, Ibaraki Prefecture Inside the Taga Division, Electrical Equipment Division, Hitachi, Ltd. (72) Koichi Niwa 1-1-1, Higashitaga, Hitachi City, Ibaraki Prefecture No. 1 Inside the Taga headquarters, Hitachi, Ltd.Electrical Equipment Division

Claims (14)

[Claims] A vacuum cleaner main body provided with a blower for sucking dust; a flexible suction hose having one end attached to the vacuum cleaner main body and communicating with the blower; and another end of the suction hose. A handle attached to the handpiece and connected to 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 mouthpiece is provided with a mouthpiece body having a suction port for sucking in dust, the mouthpiece body is connected to the connection pipe, and the rotation angle of the hand handle transmitted through the connection pipe and the rotation of the mouthpiece body are transmitted. Equipped with a universal connecting part that synchronizes the angle,
Further, the mouthpiece is provided with a sliding member around the mouthpiece. 2. A vacuum cleaner main body having a blower for sucking dust, a flexible suction hose having one end attached to the vacuum cleaner main body and communicating with the blower, and the other end of the suction hose. A handle attached to the handpiece and connected to 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 mouthpiece is provided with a mouthpiece body having a suction port for sucking in dust, the mouthpiece body is connected to the connection pipe, and the rotation angle of the hand handle transmitted through the connection pipe and the rotation of the mouthpiece body are transmitted. Equipped with a universal connecting part that synchronizes the angle,
Further, the suction body is provided with a moving means capable of moving in the front, rear, left and right directions. 3. A vacuum cleaner body having a blower for sucking dust, a flexible suction hose having one end attached to the vacuum cleaner body and communicating with the blower, and the other end of the suction hose. A handle attached to the handpiece and connected to 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 mouthpiece is provided with a mouthpiece body having a suction port for sucking in dust, the mouthpiece body is connected to the connection pipe, and the rotation angle of the hand handle transmitted through the connection pipe and the rotation of the mouthpiece body are transmitted. Equipped with a universal connecting part that synchronizes the angle,
Furthermore, the vacuum cleaner is characterized in that the suction body is provided with dust guide means between the suction port and a tip portion of the suction body. 4. A suction body having a suction port for sucking in dust, the suction body being connected to the connection pipe, and a rotation angle of a hand handle and a rotation angle of the suction body transmitted through the connection pipe. The suction body of a vacuum cleaner, further comprising a universal connecting portion for synchronizing the suction member, and further comprising a sliding member provided around the suction body. 5. A suction body having a suction port for sucking dust, the suction body being connected to the connection pipe, and a rotation angle of a hand handle and a rotation angle of the suction body transmitted through the connection pipe. The suction body of the vacuum cleaner is characterized in that the suction body is provided with a movable connecting part that can move in front, rear, left and right directions. 6. A suction body having a suction port for sucking dust, the suction body connected to the connection pipe, and a rotation angle of a hand handle and a rotation angle of the suction body transmitted through the connection pipe. Further comprising a universal connecting part for synchronizing the suction port, and further comprising: a dust guide means between the suction port and a tip end of the suction port. . 7. The universal connecting part according to claim 1, wherein said free connecting part comprises a plurality of indirect hinge parts for making a rotation angle of said hand handle substantially coincide with a rotation angle of said mouthpiece. An electric vacuum cleaner according to any of the preceding claims. 8. The vacuum cleaner according to claim 1, wherein said sliding member is a member having a small coefficient of friction. 9. The vacuum cleaner according to claim 2, wherein said moving means is a wheel provided with a member having a small friction coefficient on a running surface. 10. A vacuum cleaner according to claim 3, wherein said dust guide means is a brush arranged so as to form a dust passage toward said suction port. 11. The apparatus according to claim 4, wherein said free connecting portion comprises a plurality of indirect hinge portions for making a rotation angle of said hand handle substantially equal to a rotation angle of said mouthpiece. A suction body for the vacuum cleaner according to any of the above. 12. The suction body according to claim 4, wherein said sliding member is a member having a small coefficient of friction. 13. The suction body of a vacuum cleaner according to claim 5, wherein said moving means is a wheel provided with a member having a small friction coefficient on a running surface. 14. A suction body according to claim 6, wherein said dust guide means is a brush arranged so as to form a dust passage toward said suction port.