JP2004089736A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner whose suction port can be rotated in a wide range on a floor by a twisting motion of a proximal handle. <P>SOLUTION: This vacuum cleaner comprises a main body 100, a flexible suction hose 200, a proximal handle 300, a connecting pipe 400, and a suction port body 550. The suction port body 550 comprises a suction port body 1000 and a universal joint part 1530. A first rotation axis 1533 in the X direction to rotate the suction port body 550 in parallel with a floor face and a second rotation axis 1535 in the Y direction to orthogonally cross the first rotation axis 1533 are equipped on the universal joint part 1530 so that the suction port body 1000 can be turned against a floor face by the twisting motion of the proximal handle 300. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to a vacuum cleaner provided with a suction body that allows the user to easily operate the angle of the suction body arbitrarily by operating a handle at hand.

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 the longitudinal direction of the extension tube as a rotation axis, thereby forming a joint structure provided on the suction body. To be able to rotate to some extent.

The structure has a first joint mounted to be swingable in the vertical direction about both sides in the longitudinal direction of the mouthpiece main body as a rotation axis, and a bent tubular form, one end of which is connected to the axial direction of the first joint. And a second joint fixed rotatably to the extension tube and fixed at the other end 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 JP-A-5-245073.
JP-A-5-245073

吸 The suction body of the conventional vacuum cleaner is formed based on a horizontally long suction opening for cleaning by moving the suction body in the front-rear direction through a handle at hand, thereby cleaning the floor surface 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 the suction body is in close contact with the floor surface by operating the hand handle. Allows rotation.

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

For example, when cleaning the edge of a wall, it is efficient to move the suction body along the wall with the longitudinal direction of the mouth parallel to the wall. However, in the conventional structure of the 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 with both hands. did not become. Further, when cleaning a low gap such as under a softer, the bent joint is stuck and cleaning efficiency as expected cannot be achieved.

An object of the present invention is to provide a vacuum cleaner capable of rotating a suction main body over a wide range with respect to a floor surface by twisting a hand handle.

In order to achieve the above object, a vacuum cleaner according to the present invention includes a vacuum cleaner body having a blower for sucking dust, and a flexibility attached at one end to the vacuum cleaner body to communicate with the blower. A suction hose attached to the suction hose, a hand handle attached to the other end of the suction hose and connected to the blower, a connection pipe attached to the hand handle and connected to the suction hose, and a suction pipe attached to the connection pipe. A suction body configured to include a suction body communicating with the connection pipe, the suction body having a suction port for sucking dust, and a rotatable connection of the suction body to the connection pipe, and a dust passage of the suction body. And a universal connecting part for communicating the connecting pipe with the connecting pipe. The universal connecting part has a first rotation axis in the X direction for rotating the mouthpiece in parallel with the floor surface, and a Y axis direction perpendicular to the X direction. Second rotation axis Comprising a, a suction port body by twisting operation of hand wheel to rotate relative to the floor surface.

According to the present invention, the mouthpiece can be rotated in a wide range with respect to the floor surface by the twisting operation of the handle at hand, so that the mouthpiece can be operated in a comfortable posture, so that the operability and the cleaning property can be improved. it can.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

(First embodiment)
1 to 25 show an embodiment of the 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 is generally indicated by reference numeral 1, and includes a vacuum cleaner main body 100 having a blower (not shown) for sucking dust, and one end attached to the vacuum cleaner main body 100. A flexible suction hose 200 communicating with the blower, a hand handle 300 attached to the other end of the suction hose 200 and communicating with the blower, and a connection attached to the hand handle 300 and communicating with the suction hose 200 It comprises a pipe 400 and a mouthpiece 550 attached to the connection pipe 400 and communicating with the connection pipe 400.

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

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

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

操作 Furthermore, an operation unit 302 for operating the vacuum cleaner main body 100 is provided near the handle unit 301. The operation unit 302 is provided with an infrared transmitting unit 303, and transmits an operation signal from the infrared transmitting unit 303 to the infrared receiving unit 103 provided on the vacuum cleaner main body 100, and supplies power to the vacuum cleaner main body 100. ON, OFF, and various controls. 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 the two infrared transmission units 303 are provided, the operation signal can be reliably transmitted to the vacuum cleaner main body 100 using the reflection from the ceiling, the wall surface, or the like, so that erroneous operations can be reduced.

The connection pipe 400 allows the hand handle 300 and the suction body 550 to communicate with each other, and further fixes the hand handle 300 and the suction body 550 at a predetermined position, thereby moving (moving or rotating) the hand handle 300. Of the suction body 550 (movement or rotation). In this embodiment, two pipes 401 and 402 having different sizes are combined and configured to be expandable and contractible so that they can be fixed at a predetermined position, and a handle 300 at one end and a mouthpiece 550 at the other side can be detachably attached. I am trying to install it.

The suction body 550 connects the suction body 1000 to the connection pipe 400 and a suction body 1000 having a suction port 1010 (see FIG. 2) on the bottom surface for sucking dust, and is transmitted through the connection pipe 400. In response to the movement of the hand handle 300, the bottom surface of the suction main body 1000 always operates so as to contact the floor surface, and the air flow including the dust sucked from the suction main body 1000 is communicated to the connection pipe 400. And a flexible connecting portion 1530.

The suction port main body 1000 has a suction port 1010 (see FIG. 2) provided with a rotary brush 1011 (see FIG. 2) for sucking dust on the floor surface on the bottom surface. The free connecting portion 1530 is rotatably connected to the height direction Y of the hand handle 300 and the left-right direction X around the mouth body 550, and the rotation P 1 of the twisting operation of the hand handle 300 is directly applied to the suction body 1000. A mechanism for transmitting the rotation P2 is provided. In this embodiment, the free connecting portion 1530 is rotatably mounted on the mouth main body 1000 and is capable of rotating in the height direction Y, and one end is mounted on the connection pipe 400, and the other end is mounted on the connecting pipe 400. It is composed of a lower arm 1531 and an upper arm 1532 attached to enable rotation in the left-right direction X.

Here, in the present embodiment, the angle in the elevation direction Y is set to be about 90 degrees from the floor surface and about 360 degrees in the left-right direction X, which will be described later in detail. The angle in the height direction Y may be about 90 degrees or more from the floor surface in consideration of the storability described later. In addition, if the horizontal direction X is about 180 degrees, there is no problem in cleaning performance.

In addition, the mouthpiece 550 is provided with a bumper portion 1033 provided with a sliding member 1100 around the mouthpiece body 1000, thereby improving the cleaning performance near the wall and smoothly moving the mouthpiece 1000 in the longitudinal direction on the bottom surface. Wheels 1200 are provided. Hereinafter, for convenience of explanation, the moving direction along the longitudinal direction of the mouthpiece 1000 will be described as a left-right direction V1, and the moving direction along the short direction of the mouthpiece 1000 in a direction perpendicular to the left-right direction will be described as V2.

Further, by providing the dust guide means 1300 (see FIG. 8) at the front (between the tip) of the suction port 1010 provided on the bottom surface of the suction main body 1000, it is possible to efficiently suck the dust on the wall which is difficult to remove. it can.

As described above, according to the vacuum cleaner 1 according to the present embodiment, since the operation signal is transmitted via the infrared signal, there is no need to wire the suction hose 200, so that the weight of the suction hose 200 can be reduced. . Therefore, 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 suction body 550 can be improved. In particular, a significant feature of this embodiment is that the operation of the mouthpiece 550 via the hand handle 300, for example, the rotation P1 of the twisting operation of the hand handle can be used as it is as the rotation P2 of the mouthpiece 550. In addition, the operation performed by the user with the handle 300 can be smoothly performed as the movement of the mouthpiece 550. Specifically, for example, by twisting the handle 300 by 90 degrees (rotation P1), the mouthpiece 550 is rotated by 90 degrees (rotation P2) as shown by the dotted line in FIG. With the operation of moving back and forth, it is possible to clean the floor surface near the wall while moving the suction main body 1000 back and forth along the wall surface in the left-right direction V1. At this time, the suction member 550 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, a schematic structure of the mouthpiece 550 will be described based on FIG. 2 and with reference to FIGS. 3 to 5. FIG. 2 is a component configuration diagram of the mouthpiece 550, FIG. 3 is a cross-sectional view of a planar arrangement configuration of the mouthpiece 550, and FIGS.

First, in FIG. 2, as described above, the mouthpiece 550 includes the mouthpiece main body 1000 and the free connecting portion 1530. The mouthpiece main body 1000 includes a lower case 1001 that forms the skeleton of the mouthpiece main body 1000, a front upper cover 1002 that covers the front of the mouthpiece main body 1000, and a rear upper cover 1003 that covers the rear side of the mouthpiece main body 1000.

The lower case 1001 is provided with a partition wall 1004 which divides the suction main body 1000 back and forth a little rearward, the front part is a suction chamber 1005, and the center of the rear part is a mounting part 1006 of the free connecting part 1530. Both sides of 1006 are ventilation passages 1007 for driving a dubbin 1012 described later. At the center of the partition wall 1004, a cutout portion 1030 for guiding dust in the suction chamber 1005 to the free connecting portion 1530 is formed. The cutout portion 1030 is formed in a bell mouth shape that opens in a trumpet shape on the suction chamber 1005 side, so that an air flow containing dust is smoothly guided to the free connecting portion 1530.

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

The front upper cover 1002 covers the upper portions of the suction chamber 1005 and the ventilation path 1007, and forms the suction chamber 1005 and the ventilation path 1007 together with the lower case 1001. The provided ribs (not shown) are hooked on the lower case 1001, and the mounting ribs 1037 (see FIG. 10) provided on both sides of the rear portion are detachably mounted by the opening / closing lever 1022 of the front upper cover mounting portion 1031. .

吸 A suction port 1010 is formed in the lower case 1001 below the suction chamber 1005, and a rotary brush 1011 for scraping up dust and the like is disposed in the suction chamber 1005 above the suction port 1010. The rotary brush 1011 is formed by arranging a flexible blade having a high dust scraping 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 1012 insert the rotating shafts 1013 provided at both ends of the turbine 1012 into bearings 1014 formed at both ends in the suction chamber 1005, and are provided inside the front upper cover 1002. The rotating brush 1011 and the turbine 1012 are rotatably disposed in the suction chamber 1005 by being pressed by a bearing (not shown).

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

Here, the driving of the rotary brush 1011 will be described in detail with reference to FIG. 3. Since the present embodiment employs the turbine 1012, a multi-blade nozzle including a large number of nozzles (not shown) for blowing air toward the turbine 1012. Are disposed so as to substantially cover the outer periphery of the turbine 1012. The multi-blade nozzle is arranged so as to be vertically divided into two parts. The upper multi-blade nozzle is fixed to the back surface of the front upper cover 1002, and the lower multi-blade nozzle is connected to the lower case 1001 via a screw. It is fixed.

The air blown to the turbine 1012 rotates the turbine 1012 and, together with the airflow including dust that has been taken up by the rotating brush 1011 sucked in from the suction port 1010, forms a swirling flow on the rotating brush 1011 that rotates at high speed. It gathers in the center while winding, and is guided to the vacuum cleaner main body 100 through the notch 1030 and the free connection 1530.

As described above, according to the present embodiment, the suction body 550 rotates the turbine 1012 and the rotating brush 1011 through the ventilation hole 1016, and further winds up dust on the cleaning surface by the synergistic effect of the swirling flow generated in the suction port 1010. While collecting dust, dust collection performance can be greatly improved.

戻 り 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. The viewing window 1017 uses a transparent resin material, for example, an acrylic resin that is resistant to damage. As a good thing, a coating, for example, UV coating is applied on the inner surface of the suction chamber 1005 of the viewing window 1017 to reduce the damage caused by dust emitted by the rotating brush 1011, and further, the inside is enlarged. By forming it as a convex lens to make it easier to see, the dirt on the rotating brush 1011 can be known from the outside. Further, since the operation 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 operation state of the electric vacuum cleaner 1 or by foreign substances during driving. It is possible to know a trouble such as a stop of the rotating brush 1011 accompanying the rotation. Therefore, according to this embodiment, it is possible to easily confirm the operation state without an electrical display requiring electric wiring.

On the other hand, the free connecting portion 1530 is composed of a cylindrical lower arm 1531 and an upper arm 1532. The lower arm portion 1531 and the upper arm portion 1532 have a tube axis B1 of the lower arm portion 1531 and a tube axis B2 of the upper arm portion 1532 parallel to each other, as viewed from the side, as shown in FIG. In this position, the lower arm portion 1531 is located at a lower position, and the two arm portions 1531 and 1532 are arranged so that one ends thereof overlap, and a first rotation shaft portion 1533 is provided at the overlapping position. The first rotating shaft portion 1533 communicates with the cylindrical arms 1531 and 1532 and is rotatable, thereby enabling the rotation in the left-right direction X.

In this embodiment, a tubular rotating shaft portion 1533a is provided above one end of the lower arm portion 1531, and a tubular concave rotating bearing portion 1533b is provided below one end of the upper arm portion 1532. The first rotary shaft portion 1533 is configured by rotatably mounting the portion 1533b and the rotary shaft portion 1533a without air leakage. Further, by providing a lock ring 1534 in the first rotating shaft portion 1533, the rotation of the first rotating shaft portion 1533 can be fixed at a predetermined position.

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

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

4 and 5, in this embodiment, since the angle of the second rotation shaft 1535 in the height direction Y is set to 90 degrees, even when the angle of the height direction Y shown in FIG. Even when the angle in the height direction Y shown in FIG. 5 is 90 degrees, a shutter mechanism 1537 is employed so that the ventilation path of the notch 1030 and the lower arm 1531 can communicate with a sufficient opening area. This shutter mechanism 1537 moves the two shutters 1538a and 1538b, which move around the second rotation shaft 1535 so as to close the upper and lower portions of the lower arm 1531 along with the movement of the lower arm 1531, to the lower arm 1531. It is provided so as to sandwich it. In this embodiment, as shown in FIG. 4, when the angle in the height direction Y is 0 degrees, the upper shutter 1538 a is connected to the rib provided at the end of the upper arm 1532 from the mouth opening body 1000 (rear cover 1003). The rib provided at the end of the upper shutter 1538a is caught and pulled out to close the gap between the lower arm 1531 and the suction main body 1000, and the lower shutter 1538b is housed in the suction main body 1000 (lower cover 1001). When the lower arm 1531 increases the angle in the height direction Y from this state, when the lower arm 1531 rotates to a predetermined angle, the upper shutter 1538a is pushed by the lower arm 1531 and stored in the mouthpiece body 1000. Conversely, the lower shutter 1538b is caught by the rib provided at the end of the lower arm 1531 and the rib provided at the end of the lower shutter 1538b, and the lower shutter 1538b is pulled out, as shown in FIG. 4, when the angle in the height direction Y is 90 degrees, the lower shutter 1538b is pulled out, and the upper shutter 1538a is housed.

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

As described above, according to the free connection portion 1530 according to the present embodiment, the two rotating shafts that are orthogonal to each other, that is, the second rotating shaft 1535 in the height direction Y and the first rotating shaft 1533 in the left-right direction are provided. Therefore, the rotation P1 of the twisting operation of the hand handle 300 can be directly converted into the rotation P2 of the turning operation of the mouthpiece 550. Moreover, according to the free connecting portion 1530, since the two rotating shaft structures, particularly the first rotating shaft 1533, have a simple rotating structure, the manufacturing is easy and the appearance can be simplified without any irregularities. In addition, the design can be improved, and safety measures such as pinching of a finger and cleaning performance can be improved.

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

In this embodiment, a sliding member 1100 having a flocking of nylon or the like is provided around the bumper portion 1033, particularly on a long side opposite to the attachment portion 1006 to which the free connection portion 1530 serving as the front portion of the mouthpiece 550 is attached. By providing by insert molding, it is possible to perform cleaning while sliding along the wall surface or the like while pressing the mouthpiece 550 against the wall surface or the like while having an impact absorption function of preventing damage to furniture or the like.

In this embodiment, the bumper portion 1033 is employed. However, by forming a thick portion protruding outward from the other peripheral side around the upper portion of the lower case 1001, the overall steel property is enhanced, and The number of components may be reduced by providing the sliding member 1100 in the thick portion 1020.

As described above, the mouthpiece 550 according to the present embodiment rotates the rotating brush 1011 using the turbine 1012 that rotates by the suction airflow of the blower provided in the electric vacuum cleaner main body 100 as a drive source, so that the weight of the mouthpiece 550 can be reduced. I can do it. In addition, since the mounting portion 1006 of the free connection portion 1530 is provided at the rear center of the suction chamber 1005 and the ventilation passages 1007 are arranged on both sides of the mounting portion 1006, the overall height of the suction main body 1000 can be reduced to make it compact. Can be. In addition, since the attachment of the flexible connecting portion 1530 requiring steel and hermeticity is solved by attaching the rear upper cover 1003, the number of parts can be reduced, and the assemblability can be improved. Further, the parts other than the rear upper cover 1003 can be opened simply by passing them through the front upper cover 1002, and the rotating brush 1011 can also be easily removed, so that the disassembly and cleaning properties can be improved. In addition, assembling can be completed only by simply attaching the rotating brush 1011 and attaching the front upper cover 1002, so that the handleability can be improved.

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

First, in FIG. 6, the mouth body 550 of the present embodiment has a thin appearance, the front part of the mouth body 1000 is extended to both sides, and the mounting part 1006 of the free connecting part 1530 arranged at the center of the rear part is rearward. It has a "substantially T-shaped" planar shape that projects to the outside. The entire upper surface has a round shape as a main shape to improve cleanability, and each corner has a round shape so as not to damage furniture or the like.

Further, as shown in FIGS. 7, 4 and 5, the tip of the suction main body 1000 has a substantially wedge-shaped side surface having a convex arcuate upper surface, so that the rotation area of the rotating brush 1011 is secured while securing the rotation area. 1005 has a shape in which the air flow can be easily introduced into the bell mouth-shaped notch 1030, and has a compact form as a whole.

Returning to FIG. 6, in this embodiment, the bumper portion 1033 is formed by connecting the suction body 550 to furniture or the like, that is, both sides in the longitudinal direction including four corners protruding to both sides of the suction main body 1000 and the front portion. And it is formed in a belt-like and convex form continuously formed on a part of the back surface. And the sliding member 1100 is continuously provided in the bumper part 1033. As shown in FIG. 11 (a), the sliding member 1100 has a brush 1101 having a short bristle made of a nylon material implanted in a brush base 1102, and the brush base 1020 is inserted into a groove 1021 formed in the bumper section 1033. Thus, the brush 1101 is fixed to the bumper portion 1033. Here, the brush stand 1102 can be reduced in number of parts by attaching the brush stand 1102 having the same length as the bumper section 1033 to the groove section 1021, but may be divided and attached to facilitate the molding. Furthermore, the brush stand 1102 may be integrally formed with the bumper portion 1033 to improve the assemblability, but the cost of the equipment may be reduced by bonding or press-fitting using elasticity of a resin material. .

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

In this embodiment, since the projection 1034 is formed integrally with the bumper portion 1033, the material is made of a resin material having high hardness, and a space for reducing the impact is provided inside the bumper portion 1033 to reduce the damage and the impact. 1035 are formed. In addition, only the protrusion 1034 is formed as a material having high hardness such as fine beads or wire rods by embedding it in a predetermined position of the bumper portion 1033 made of a material having low hardness which is generally adopted. Thus, a structure that is resistant to impact while improving the slippage may be adopted. In this case, the protrusion 1034 may be embedded in the bumper portion 1033 at the time of molding, or may be attached via a pedestal as shown in FIG.

ロ ー ラ ー Further, as another sliding member 1100, for example, a roller 1103 may be employed as shown in FIG. In this case, it may be attached to the bumper part 1033, or may be attached directly to the lower case 1001. A better roller can be provided with an elastic material such as rubber or velvet around the roller 1103, or can be made into a tire to improve the slip and obtain an effect as a bumper function. In this case, the mounting position of the roller 1103 may be provided so as to protrude forward at least on both sides of the front part of the mouthpiece 550 as shown in FIG. A more favorable one can improve slipperiness by being attached to the corners on both sides of the front part of the mouthpiece 550. Further, as shown in FIG. 11A, by providing the mouthpiece 550 at the center of the front part in addition to the corners on both sides of the front part, the unevenness of the wall surface can be easily absorbed. A more favorable one can be provided with four corners protruding on both sides of the suction main body 1000 and the center of the front part, thereby improving the mobility. The arrangement of the sliding member 1100 may be the same as that of the embodiment shown in FIG.

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

Further, in the embodiment shown in FIG. 6, the sliding member 1100 is provided around the bumper portion 1033 as a separate member to improve the slip while providing the shock absorbing function. By forming the sliding member 1100 directly or integrally with the thick portion, the slipperiness is improved while having a shock absorbing function of improving the steel properties of the suction main body 1000 and preventing damage to furniture and the like. In addition, there is no need to provide the bumper portion 1033 made of an elastic material such as rubber or soft resin as another component.

Next, returning to FIG. 6, in this embodiment, the size of the mouthpiece 550 is set to 250 mm, the depth D1 of the mouthpiece main body, and the depth of the root portion protruding to both sides in a state in which the free connecting portion 1530 is extended. D2 and depth D3 at both ends are set to 137 mm, 96 mm, and 87 mm, respectively. In this embodiment, since the length D4 of the connecting portion 1507 is set to 50 mm, the depth when the connecting portion 1507 is attached to the connection pipe 400 is set to 254 mm. Further, as shown in FIGS. 6 and 8, the height H61 of the mouth body 1000, the width W thereof is set to 280 mm, and the width W1 of the mouthpiece 1010 is set to 216 mm.

Next, in FIGS. 7 and 8, the mouthpiece 550 according to this embodiment has a rounded flat upper surface to facilitate wiping of dirt on the upper surface, and a front upper cover 1002 constituting the upper surface. The structure is such that it can be easily removed, thus improving cleanability. The front upper cover 1002 has a structure in which sink and weld are not easily generated during manufacturing while maintaining strength.

In order to realize this effect, the mouthpiece 550 according to the present embodiment covers the upper surface of the mouthpiece 550 other than the attachment portion 1006 of the free connection portion 1530 with the front upper cover 1002, and attaches and detaches the front upper cover 1002. An enabling opening / closing lever 1022 is provided on the front upper cover mounting portion 1031. This structure will be described with reference to FIG.

As described with reference to FIG. 2, the mouthpiece 550 according to the present embodiment includes front upper cover mounting portions 1031 for fixing the front upper cover 1002 on both sides of the rear upper cover 1003, and the front upper cover mounting portion 1031. The front upper cover 1002 is detachably attached via a pair of opening / closing levers 1022 provided on the 1031 and sliding in the horizontal direction. As shown in FIG. 10A, the front upper cover 1002 has a notch 1036 formed in a portion corresponding to the opening / closing lever 1022, and a lower end 1037a is formed in an L-shape inside the notch 1036. A mounting rib 1037 is provided. The opening / closing lever 1022 is attached to the front upper cover attaching portion 1031 so that the upper portion of the L-shaped lower end portion 1037a can slide laterally. Therefore, the opening / closing lever 1022 can be fixed at a position where the opening / closing lever 1022 overlaps with the mounting rib 1037, and the front upper cover 1002 can be removed at a position where the opening / closing lever 1022 does not overlap. According to the structure of the present embodiment, since the opening / closing lever 1022 does not need to be provided on the front upper cover 1002, it is not necessary to form a rib or the like necessary for providing the opening / closing lever 1022.

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

Furthermore, the front upper cover 1002 is provided with a handle recess 1023 for removing the front upper cover 1002 on both side surfaces.

According to this embodiment, the front upper cover 1002 can be formed in a simple shape by separating the opening / closing lever 1022 from the front upper cover 1002, so that the occurrence of sink marks and welds due to rib formation can be reduced. Can be. In addition, with this simple shape, it is possible to reduce the weight of the front upper cover 1002, improve the cleanability, and improve the design. In addition, the opening / closing lever 1022 is provided on a rear surface that is hardly subjected to impact, and has a structure that is hardly damaged by external force even if it comes into contact with furniture or the like during cleaning.

強度 Further, the strength of the front upper cover 1002 can be improved by providing the ventilation holes 1016. Moreover, by providing the ventilation holes 1016 in the front upper cover 1002 that can be easily attached and detached, the ventilation holes 1016 that are easily stained by removing the front upper cover 1002 can be washed from the front and back, so that the cleaning performance can be improved.

In addition, since the handle recess 1023 is provided on the side surface of the mouthpiece 550 (front upper cover 1002), the index finger or the middle finger is inserted into the handle recess 1023, the thumb is hooked on the open / close lever 1022, and the open / close lever 1022 is opened. 1022 can be slid outward to disengage, and pinched with the thumb and forefinger (middle finger), and the front upper cover 1002 can be easily removed from the mouthpiece 550.

Furthermore, since the opening / closing lever 1022 and the hand-holding concave portion 1023, on which dirt easily accumulates, are provided on a vertical surface, dirt hardly accumulates. Moreover, the front upper cover 1002 can be easily attached, and the upper surface of the attached suction body 550 has a continuous flat flat shape with the front upper cover 1002 and the rear upper cover 1003, so that dirt can be easily removed. Can be wiped off.

9, a lower case 1001 includes a plurality of wheels 1200 so that the entire suction body 550 is moved in the front-rear direction V2 and the left-right direction V1, and a predetermined interval is maintained between the bottom surface of the suction body 550 and the cleaning surface. Is arranged. The wheel 1200 has a pair of front wheels 1261 arranged on both sides on the front of the bottom surface of the mouthpiece 550, a pair of rear wheels 1262 arranged behind the front wheel 1550, and a pressure on the cleaning surface during use of the electric vacuum cleaner 1. A pair of rear wheels 1263 for receiving the vehicle and a retractable wheel 1264 used to protrude from the bottom surface when moving in the left-right direction V1.

Here, the front wheel 1261 and the rear wheel 1262 are arranged at positions facing each other. That is, as described above, the pair of front wheels 1261 and the pair of rear wheels 1262 are located on the radially extending portion of the turbine 1012 of the lower case 1001, and the lower portion of the turbine 1012 is located between the suction port 1010 and the cleaning floor. The gap is kept constant. Furthermore, a large rear wheel 1263 is provided below the universal connecting portion 1530 that receives the force of the handle 300 most, thereby enhancing the steel and running properties. At 1203, the clearance with the cleaning floor is kept constant.

As described above, the mouthpiece 550 according to the present embodiment is largely characterized in that it is moved in the left-right direction V1 in addition to the movement in the front-back direction V2. In this embodiment, a pair of retractable wheels 1264 are provided below the second rotating shaft 1355 as shown in FIG. 13 to achieve the movement in the left-right direction V1. The front wheel 1261, the rear wheel 1262, and the rearmost wheel 1263 each have an axle on both sides of the mouth body 550 (front-back direction in the drawing) as shown in FIG. Although the wheels 1264 are rotatable in a direction V2 (horizontal direction in the drawing), the retractable wheel 1264 is different from the three wheels in a 90-degree axle direction, and rotates in a horizontal direction V1 (front-back direction in the drawing) of the mouthpiece 550. The wheels are free. Further, the retractable wheel 1264 is housed inside the suction body 550 in a normal use mode, that is, at an angle at which the hand handle 300 is not twisted up to 90 degrees as shown in FIGS. 19A and 19B. As shown in FIG. 19 (c), the handle is twisted by 90 degrees to rotate the mouthpiece 550 by 90 degrees, and the mouthpiece 550 is projected in a state of moving in the left-right direction V1 (the front-back direction in the drawing). It has such a structure. This structure will be described in detail with reference to FIG.

First, as shown in FIG. 13A, in this embodiment, a pair of sliding surfaces 1539 formed around the rotation shaft 1503 of the second rotation shaft 1355 are provided with projections 1540, respectively. The protrusion 1540 is formed so that the angle of the lower arm 1531 in the height direction Y is 90 degrees, as shown in FIG. On the other hand, an opening 1541 is formed in the lower case 1001 below the rotating shaft 1503, and a retractable wheel 1264 is attached to the opening 1541. The retractable wheel 1264 includes a wheel base 1266 having a rotation shaft 1265 on the front side of the mouthpiece 550, that is, the rear wheel 1262 side, a wheel 1267 attached to the wheel base 1266, and a wheel base 1266 attached to the rotation shaft 1265. And a spring body 1268 such as a coil spring, a torsion spring, or a leaf spring which attempts to house the inside of the mouthpiece 550.

The position and the size of the protrusion 1540 and the hammer wheel 1264 are set such that the hammer wheel 1264 projects at a position where the angle of the lower arm 1531 in the height direction Y is 90 degrees. In this embodiment, the protrusion 1540 is provided on the sliding surface 1539, but the protrusion 1540 may be provided separately.

By the way, according to this embodiment, as shown in FIG. 9B, the state in which the angle of the lower arm 1531 in the height direction Y does not reach 90 degrees, that is, the twist angle P1 of the hand handle 300 does not twist 90 degrees. In this state, since the retractable wheel 1264 is housed inside the suction body 550, the suction body 550 is smoothly moved in the front-rear direction V2 (the left-right direction in the drawing) via the front wheel 1261, the rear wheel 1262, and the rearmost wheel 1263. Can be moved.

On the other hand, when the twist angle P1 of the hand handle 300 is twisted by 90 degrees, the angle of the lower arm 1531 in the height direction Y becomes 90 degrees as shown in FIG. The rear wheel 1262 and the rearmost wheel 1263 protrude to float t0 from the floor. For this reason, the hammering wheel 1264 receives the force of the handle 300 most, so that the suction body 550 can be easily moved in the left-right direction V1 (the front-rear direction in the drawing) via the hammering wheel 1264 and the front wheel 1261. Can be.

Next, in this embodiment, the front wheel 1261, the rear wheel 1262, and the wheel 1267 of the rearmost wheel 1263 are formed of a material that easily slides, and the contact surface with the floor surface is subjected to gloss processing, and the shape is changed to a drum shape. And For this reason, since it is easy to slide also in the axle direction or the diagonal direction, the turning property of the suction body 550 and the running property in the left-right direction V1 are improved.

滑 り Furthermore, in order to further improve turning performance and running performance in the left-right direction V1, a sliding member 1210 may be provided around the wheel 1267a. This structure will be described with reference to FIG. The wheel 1267a has a rotating shaft 1211 like a normal wheel, forms a concave portion 1212 to which the sliding member 1210 is attached on a peripheral side surface serving as a contact surface with a floor surface, and has an end surface on both ends of which is provided with an obstacle in the left-right direction V1. A C-cut surface 1213 for improving overcoming is formed. The sliding member 1210 is similar to the sliding member 1100 provided around the mouthpiece 550, and a bristle 1214 having a short bristle of nylon material is implanted in a brush base 1215, and a concave portion 1212 formed in the wheel 1200 is formed. By inserting the brush table 1215, the brush 1214 is fixed to the wheel 1267a. In this embodiment, the brush base 1215 is divided into two ring-shaped parts and attached so as to sandwich the wheel 1267a. This mounting method is the same as that of the sliding member 1100. Then, the wheel 1267a is press-fitted into a bearing of a wheel storage portion formed at the predetermined position on the bottom surface of the mouthpiece 550 and attached.

Returning to FIG. 9, the embodiment shown in FIG. 9 employs the wheel 1267 having no sliding member 1210 around it, but adopts the wheel 1267 a having the sliding member 1210 around it so that the mouthpiece 550 is provided. Can be further improved. In particular, by adopting the wheel 1267a as the front wheel 1261 for moving the mouthpiece 550 in the left-right direction V1 (front-rear direction in the drawing) by pairing with the retractable wheel 1264, the mobility in the left-right direction V1 is remarkably improved. can do.

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 free wheel may be used, or a protrusion may be formed at a predetermined position of the mouthpiece 550 where the wheel 1200 is arranged, and the sliding member 1210 may be provided on the protrusion.

As described above, the bottom surface of the mouthpiece 550 according to this embodiment is provided with the retractable wheel 1264 protruding by the twisting operation P1 of the hand handle 300, so that, for example, in the left-right direction V moving along the wall surface, The suction body 550 can be smoothly moved in the left-right direction V1 (left-right direction in the drawing) by the appearing / retreating wheel 1264 and the front wheel 1261.

On the other hand, in the front-rear direction (vertical direction in the drawing) of the suction body 550, the retractable wheel 1264 is housed in the suction body 550, so that the front wheel 1261 and the rear wheel 1262 are respectively left and right, and the rearmost wheel 1263 is located at the rear center. Are arranged in a five-point wheel. According to the five-point wheel configuration, the traveling performance in the front-rear direction V2 is excellent, and the mouthpiece can be stably supported in oblique movement and turning performance. In particular, since the rearmost wheel 1263 is located closer to the user than the rotation shaft 1503 of the free connection portion 1530 at the time of use, it is possible to reduce the movement in the front-rear direction V2, especially the lifting of the tip of the mouthpiece 550 when retracting. . Furthermore, since the rotating shaft 1503 of the free connecting portion 1530 is provided in the five-point wheel, even if the mouthpiece 550 is turned and rotated via the hand handle 300, the inclination of the mouthpiece 550 (lift of the corner). Can be reduced. Moreover, since each wheel 1200 is arranged at a corner of the mouthpiece 550, it is possible to reduce the possibility of the wheel 1200 being caught during rotation.

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

The guide means 1300 according to the present embodiment is for efficiently sucking in the dust which is difficult to suck. In this embodiment, in order to solve the above-mentioned problem, a plurality of brush rows 1311 in which a bunch of brushes 1310 made of long hair, such as nylon, are arranged so as to form a row in the front-rear direction, are arranged on the plane portion 1302 in a left-right direction. Thus, the guide unit 1300 is configured. In this embodiment, as shown in FIG. 8, the brush rows 1311 are bilaterally symmetric about the center, and the brush rows 1311 are arranged obliquely so as to converge on the suction port 1010 side. The bundle of brushes 1310 may be directly embedded in the flat portion 1302 and implanted. Alternatively, the brush row 1311 may be implanted as a group in a brush table and the brush table may be embedded in the flat portion 1302 and attached. Good.

According to the guide means 1300, the air flow passage 1312 is formed between the brush rows 1311. Therefore, the flow of the air flow can be accelerated through the flow passage 1312 to make it easier to suck in dust. . In addition, by moving the suction body 550, the dust on the flat portion 1302 is swept up by the bunch 1310 of the brushes, and can be easily sucked. In other words, by moving the dust on the flat portion 1302 through the suction body 550, the dust can be swept up by the bunch 1310 of the brushes and guided to the suction port 1010 through the flow path 1312.

Further, in this embodiment, the length of the bristle feet of the brush bundle 1310 is changed in a state in which the mouthpiece 550 is moved in the front-rear direction (left-right direction in the drawing) as shown in FIG. In a state where the vehicle runs on five wheels of the wheel 1261, the rear wheel 1262, and the rearmost wheel 1263, the tip of the brush bundle 1310 is set so as to be in contact with the floor surface. In this state, the tip of the brush bundle 1310 appropriately brushes the floor surface, and the cleaning effect can be improved by the above-described operation and effect.

On the other hand, in a state in which the suction body 550 is moved in the left-right direction V1 (the front-rear direction in the drawing) by the front wheel 1261 and the emergence wheel 1264 shown in FIG. The tip of the brush bundle 1310 is strongly pressed against the floor surface because the tip of the bundle of brushes 1310 is tilted toward the front wheel 1261 and turned forward. For this reason, the dust on the flat portion 1302 is swept up by the brush bundle 1310 more strongly than the state shown in FIG. In addition, when the guide means 1300 is strongly pressed against the floor surface, the guide means 1300 also supports the suction body 550 instead of the front wheel 1261. Therefore, the mobility of the suction body 550 in the left-right direction V1 is improved. Can be improved.

The pressure control plate 1301 receives the dust that has rushed backward in the flow path 1312 and is sucked into the suction port 1010 again. In the state shown in FIG. 13C, the pressure control plate 1301 can be set to have a length that protrudes from the bottom surface such that the front end comes into contact with the floor surface, thereby improving the airtightness of the lower part of the suction port 100. .

Next, the flexible connecting portion 1530 will be described in detail with reference to FIGS.

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

Further, in this embodiment, a lock mechanism 1516 for temporarily locking the rotation in the left-right direction X at a position of 90 degrees is provided. For example, in this embodiment, a groove 1543 is formed in the sliding surfaces 1542a and 1542b between the rotary shaft portion 1533a and the rotary bearing portion 1533b, and a lock ring 1534 shown in FIG. I have. The lock ring 1534 is formed with a leaf spring action so that a part of the ring is opened and tends to spread in both directions indicated by arrows. Further, the lock ring 1534 has a mounting portion 1544 provided at the center of the ring, and projections 1545a are formed at opposing positions on both sides of the mounting portion 1544 where the mounting portion 1544 is to be spread at an equal distance.

The lock ring 1534 is fixed to the groove 1543 on the side of the rotation shaft portion 1533a via the mounting portion 1544, as shown in FIG. Further, in the groove 1543 on the side of the rotary bearing portion 1533b, a pair of concave portions 1545b to be fitted with the protruding portions 1545a are formed at positions where the lower arm portion 1531 and the upper arm portion become straight.

According to the lock mechanism 1516, when the lower arm 1531 and the upper arm 1532 are linear, the rotation in the left-right direction X is fixed, so that the straightness of the mouthpiece 550 is improved and the front-back movement is achieved. Becomes easier. On the other hand, when trying to rotate the mouthpiece 300 via the handle 300 at hand, the engagement between the projection 1545a and the recess 1545b is released, so that the lock mechanism 1516 can be removed with a small force.

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

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

According to this structure, assembling is easy if the rotary bearing portion 1533b is inserted into the rotary shaft portion 1533a with the fixing ring 1547 embedded in the groove 1546a of the rotary shaft portion 1533a. Since the fixing ring 1547 extends in the groove 1546b of the rotary bearing portion 1533b, the rotation shaft portion 1533a and the rotary bearing portion 1533b are not disengaged without impairing the rotation of the first rotary shaft 1533.

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

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

固定 Then, a fixing piece 1549 is arranged so as to straddle the opening window 1552 and the recess 1551. The fixing piece 1549 is detachably formed from the opening window 1552 by utilizing the elastic action of the resin material. For example, in this embodiment, the fixing piece 1549 is composed of an arc-shaped portion 1549a conforming to the shape of the concave portion 1551, and a main body 1549b whose outer shape is adapted to the opening window 1552 and whose inside is robbed. When the fixing piece 1549 is mounted, the jig is inserted into the opening 1552 through the arc-shaped portion 1549a, and when the fixing piece 1549 is removed, a jig is inserted into a hole provided in the main body 1549b so that the distal end of the main body 1549b is made of a resin material. Pull out using elasticity. The size of the fixed piece 1549 and the size of the concave portion 1551 are set so that the first rotating shaft 1533 does not rattle and can rotate smoothly.

Further, in this embodiment, a lock mechanism 1516 including the protrusion 1545a and the recess 1545b is provided on the contact surface between the fixing piece 1549 and the recess 1551. For example, in this embodiment, a protrusion 1545a is provided at the tip of the main body 1549b, and a recess 1545b is provided at a predetermined position of the recess 1551, so that the elastic force of the resin material of the fixing piece 1549 is used. The locking and unlocking of the projection 1545a and the recess 1545b can be performed smoothly.

According to this structure, assemblability of the first rotary shaft 1533 is improved, and disassembly is easy by removing the fixing piece 1549, so that maintenance and cleaning can be improved. Moreover, the first rotating shaft 1533 can be locked at a predetermined position with a simple structure.

In the above embodiment, the fixed piece 1549 having the lock mechanism 1516 is employed, but the lock mechanism 1516 and the fixed piece 1549 may be separated.

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

In this embodiment, in a state where the mouthpiece 550, the connection pipe 400, and the hand handle 300 are connected to each other, the upright storage such that the hand handle 300 is positioned above the mouthpiece 550 is enabled. In this embodiment, a lock mechanism 1553 is provided on the second rotating shaft 1535 in order to maintain this storage posture. The lock mechanism 1553 includes a projection 1554 provided on a sliding surface 1539 of the second rotating shaft 1355 and a concave portion 1038 provided on a sliding surface of the bearing 1018 of the lower case 1001. The protruding portion 1554 forms a U-shaped cut in a part of the sliding surface 1539 and is provided at its free end so that the protruding portion 1554 can rotate the second rotation shaft 1535 by a spring action. So as not to cause any trouble. The lock mechanism 1553 sets the arrangement of the protrusion 1554 and the recess 1038 so that the lower arm 1531 locks when the angle in the height direction Y is 90 degrees.

With this structure, as shown in FIG. 13B, in a vertical storage position in which the hand handle 300 is positioned above the mouthpiece 550, the lock mechanism 1553 of the second rotation shaft 1535 and the first rotation shaft 1553 Since the lock mechanism 1516 is in the locked state, the vertical storage position can be maintained. In addition, when the lock mechanism 1553 of the second rotating shaft 1535 is in the locked state, the retractable wheel 1564 protrudes and the mouthpiece 550 assumes a forward curled posture, so that the weight of the suction hose 200 attached to the handle 300 is reduced. Because they can be balanced, a stable posture can be maintained.

Also, since the second rotating shaft 1535 is in the locked state even when the suction body 550 is moved in the left-right direction V1, it is easy to maintain the angle of the twisting operation P1 of the hand handle 300 during traveling. Note that, similarly to the lock mechanism 1516 of the first rotation shaft 1553, the lock mechanism 1553 may be locked at an angle that is frequently used.

In another application example, the lower arm 1531 may be locked in a state where the angle in the height direction Y is 90 degrees or more. In this case, a convex rib (not shown) is provided before the concave portion 1038 and the projection 1554 are fitted to each other so as to provide a sense of resistance before the lock state. Therefore, when the angle of the twisting operation P1 of the hand handle 300 is set to 90 degrees, the rotation angle P2 of the suction body 550 is set to 90 degrees, and the suction body 550 is moved in the left-right direction V1, the lock mechanism 1553 is in the locked state. Does not. On the other hand, if the angle of the twisting operation P1 is set to 90 degrees or more, or the angle of the lower arm 1531 in the height direction Y is set to 90 degrees or more, and the operation is performed beyond the resistance, the locked state is set. . In this way, when moving the mouthpiece 550 in the left-right direction V1, the second rotating shaft 1535 does not enter the locked state, and can maintain a more stable posture in the upright storage posture. Further, in the storage posture, since it is not necessary to consider the operation of the mouthpiece 550 in the left-right direction V1, the locked state can be set strongly, and a more stable posture can be obtained. In this case, the unlocking may be released by stepping on the suction body 550 with a foot or the like.

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

In FIG. 19, first, in the vacuum cleaner 1 according to the present embodiment, the user holds the handle 300 in a standing posture to operate the suction body 550 via the connection pipe 400 to clean the floor. It can be carried out. At this time, since the vacuum cleaner main body 100 connected to the handle 300 via the suction hose 200 is provided with a pair of large wheels 101 and one free wheel 102, cleaning can be performed while moving. it can. In general, the average height of a Japanese woman is 157 cm. However, if the user naturally holds the handle 300 and moves the suction body 550 back and forth through the connection pipe 400 for cleaning, If the vertical distance between the hand handle 300 and the floor is 78 cm or less, cleaning can be performed without placing a burden on the hands and arms. The angle is set to the most operable operation range of the user, which is 45 degrees in the vertical direction. If the angle is 45 degrees or more, a burden is placed on the hands and arms.

Therefore, in this embodiment, the length of the connection pipe 400 is set so that the angle of the connection pipe 400 is 45 degrees. Since the handle portion 301 of the handle 300 is set at about 110 degrees, the user holding the handle portion 301 can easily move in the front-rear direction when the angle of the connection pipe 400 is 45 degrees. Can be. In addition, since the lower arm portion 1531 of the free connection portion 1530 rotates in the height direction Y, the bottom surface of the mouth body 550 where the mouth 1010 is provided, even if the mouth body 550 moves in the front-back direction, The bottom does not rise from the floor. At this time, the rotation in the left-right direction X is caused by the rotation of the upper arm 1532 due to the friction of the rotation shaft because the rotation axis in the left-right direction X of the upper arm 1532 is inclined 45 degrees because the connection pipe 400 is inclined at 45 degrees. Rotation in the left-right direction X is difficult, and even when the mouthpiece 550 is moved in the front-rear direction, it is possible to reduce the movement of the mouthpiece 550 in the left-right direction X. Further, in this embodiment, since the lock mechanism 1516 is provided on the second rotary shaft 1533, the straightness of the mouthpiece 550 can be further improved.

In addition, when moving in the front-rear direction, the mouthpiece 550 is supported by front wheels 1261, rear wheels 1262, and rearmost wheels 1263 among the wheels 1200 provided on the bottom surface. The rotation as a normal wheel is performed, so that straightness can be improved. In particular, in this embodiment, the rearmost wheel 1263 reduces floating of the distal end portion of the mouthpiece 550 in the forward and backward movements, thereby obtaining good straight-line performance. Further, in this embodiment, the brush 1214 of the guide means 1300 and the double brush of the rotating brush 1011 can double-screw the dust on the floor surface to increase the suction efficiency.

Here, in this embodiment, the lower arm 1531 rotates in the height direction Y, and the upper arm 1532 rotates in the left-right direction X, so that the connection pipe 400 in the normal posture is in a state of 45 degrees. Although the straightness is enhanced, the lower arm 1531 may rotate in the left-right direction X and the upper arm 1532 may rotate in the vertical direction Y. In the reverse rotation structure, the rotation operation of the mouthpiece 550 described later can be performed in the same manner as in the above-described embodiment, but since the problem remains in the straightness, it is necessary to provide the lock mechanism 1516 for preventing the rotation in the left-right direction X. is there.

In FIG. 20, in this embodiment, the direction (rotation P2) of the mouthpiece 550 can be linked to the rotation of the handle 300 by an operation P1 of twisting the handle portion 301 of the handle 300 at hand. 20, (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. And a state diagram of the mouthpiece 550. In FIG. 20, three angles are described for the sake of explanation, but the angle of the twisting operation of the hand handle 300 and the angle of the mouthpiece 550 are linked at any angle in the operation range.

First, in FIG. 7A, the handle portion 301 and the mouthpiece 550 are in a state suitable for straight running with straight facing.

On the other hand, as shown in FIG. 11B, when the handle portion 301 is twisted by 45 degrees, the direction of the mouthpiece 550 can be inclined by 45 degrees by the action of the free connecting portion 1530. In this state, the wheel 1200 of the suction body 550 slides laterally, so that the front-back movement can be performed while the suction body 550 is tilted. For example, it is very effective when cleaning a narrow part with an obstacle in front. In addition, since the direction of the wheel 1200 is changed by changing the direction of the mouthpiece 550, the course of the mouthpiece 550 can be easily changed like turning a steering wheel of an automobile.

(C) As shown in FIG. 9C, when the handle portion 301 is twisted by 90 degrees, the direction of the mouthpiece 550 can be set to a horizontal direction inclined by 90 degrees by the action of the free connection portion 1530. In this state, the retractable wheel 1264 of the suction body 550 protrudes from the bottom surface by the action of the free connecting portion 1530. Since the suction body 550 is supported by the retractable wheel 1264 and the front wheel 1261, the suction body 550 can be moved in the front-rear direction (the left-right direction V <b> 1) with the suction body 550 lying sideways. This posture is extremely effective for cleaning the wall. This cleaning near the wall will be described with reference to FIG.

In FIG. 21, (a) shows a state in which the wall is cleaned with the mouthpiece 550 lying sideways, and (b) FIG. 21 shows the mouthpiece 550 close to the side with a margin of shoulder width along the wall. The state in which the wall is cleaned in the state is shown. 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. Furthermore, in the mouthpiece 550 according to this embodiment, in the use state of FIG. 21, the universal connection portion 1530 is configured such that the angle of the second rotation shaft 1535 in the height direction Y is 90 degrees, so that the universal connection portion 1530 is not used. Since it fits within the projected area of the suction main body 1000, it is very advantageous for cleaning a gap with a small width HH in FIG. In addition, in this use state, the upper arm 1532 is located on the center side (wall side) in the short side direction of the mouthpiece 550, so that "left and right blurring" of the mouthpiece can be reduced and the traveling performance can be improved.

Now, in the state shown in FIG. 21, the suction body 550 right beside can be moved in the front-rear direction (left-right direction V1) in a state where the tip of the suction body 550 is in contact with the wall surface. In this state, the sliding member 1100 provided around the suction body 550 can be moved without damaging the wall surface, and 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. Further, the guide means 1300 can be improved in cleaning efficiency because the mouthpiece 550 is inclined and strongly pressed against the floor surface due to the protrusion of the retractable wheel 1264.

Next, in FIG. 22, even if the mouthpiece 550 according to this embodiment is lowered without twisting the handle 300, the bottom surface thereof can be in contact with the floor surface with the mouthpiece 550 facing directly. Therefore, it is excellent in cleanability of a low part such as a lower part of furniture. 22, (a) and (b) are a side view and a plan view in a use state of a conventional example, and (c) and (d) are a side view and a plan view in a use state of this embodiment.

As is clear from the comparison between the figures (a) and (c), according to the present embodiment, the lower handle 300 can be inserted into the lower gap, but in the conventional example, the bent joint is used. Therefore, if the handle 300 is lowered, the bottom surface of the mouthpiece 550 will float. In the conventional example, as shown in FIG. 2 (b), the total height H can be lowered by turning the joint bent by twisting the hand handle 300, but the suction body 550 faces obliquely. There remains a problem in the cleanability of garbage. On the other hand, in the present embodiment, as shown in FIG. 4D, the mouthpiece 550 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.

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

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

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

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

(B) is a plan view of a state A1 in which the angle of the elevation direction Y is 45 degrees, and a plan view of the mouthpiece 550 in a state A0 in which the angle of the twisting operation P1 is 90 degrees from the state A1, and (c) is a plan view. FIG. 10 shows a front view of the mouthpiece 550 in a state A0 in which the angle of the twisting operation P1 is 90 degrees.

(A) In this figure, in this embodiment, the rotation surface F1 of the first rotation shaft 1533 disposed between the tube axis B1 of the lower arm 1531 and the tube axis B2 of the upper arm 1532 is parallel to the tube axis. It is arranged in parallel with B1 and B2. According to the experimental verification of this embodiment, the rotation P1 of the twisting operation of the hand handle 300 (rotating the tube axis B2) is centered on the intersection G1 where the extension line F2 passing through the rotation surface F1 intersects the floor surface. Is converted to the rotation P2 of the mouthpiece 550. Therefore, in the state A2 in which the angle of the elevation direction Y is 90 degrees, the intersection G2 where the extension line F2 passing through the rotation surface F1 intersects the floor is located directly below the handle 300, so that the twist operation P1 of the handle 300 Rotation can be easily performed. On the other hand, as shown in FIG. In the state A3 in which the angle in the elevation direction Y is small, the intersection G3 is far away, so that the rotation P2 of the mouthpiece 550 cannot be obtained unless the twist rotation P1 is applied with a large force. Moreover, as is apparent from the figure, if the angle in the elevation direction Y is too small, the extension line F2 passing through the rotation surface F1 does not intersect the floor surface, so that the rotation P2 of the mouthpiece 550 cannot be obtained.

Now, in order to elucidate the operation principle of the present embodiment, by fixing the mouthpiece 550 and rotating / moving the handle 300 side, the first state A1 of the rotation operation and the final state A0 of the rotation operation are changed. Compare. First, as shown in (a) and (b), in the first state A1, an intersection G1 at which an extension line F2 passing through the rotation surface F1 intersects with the floor surface is set substantially at the center of the mouthpiece 550. However, as shown in (b) and (c), when the hand handle 300 is moved to the final state A0 by applying the twisting operation P1, the intersection G0 at which the extension line F2 passing through the rotation surface F1 intersects the floor surface becomes It is set on one side in the longitudinal direction of the mouthpiece 550. That is, in the normal operation state, the hand handle 300 is operated at a predetermined position by the user, so that the rotation P2 of the mouthpiece 550 rotates while moving the intersection G1 which is the center of the rotation P2 to G0. . More specifically, when the twisting action P1 of the hand handle 300 is applied in the direction of the arrow E1, the suction body 1000 that originally intended to rotate according to the twisting action P1 is prevented from rotating by the floor surface. Therefore, the first rotating shaft 1533 operates so as to rotate while tilting the rotating surface F1 and escape in the direction of the arrow E2. On the other hand, the second rotating shaft 1535 operates to receive the twisting operation P1 on the entire bottom surface of the suction body 550, and follows and interlocks with the first rotating shaft 1533 that rotates while tilting the rotating surface F1. Then, the operation is performed so as to gradually rotate, that is, increase the angle in the height direction Y. As a result, the mouthpiece 550 rotates in the direction of the arrow E3 while the center position of the rotation P2 is changed from G1 to G0.

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

The mouthpiece 560 according to this embodiment is different from the mouthpiece 550 according to the first embodiment in that the rotation surface F1 of the first rotating shaft 1533 is inclined, and other structures are substantially the same. According to the mouthpiece 560, the rotation angle of the rotation P2 of the mouthpiece 560 can be larger than the rotation angle of the twisting operation P1 of the hand handle 300.

In FIG. 26, the mouthpiece 560 is configured such that the rotation surface F1 of the first rotation shaft 1533 disposed between the tube axis B1 of the parallel lower arm 1531 and the tube axis B2 of the upper arm 1532 The rotating surface F1 is formed so as to have an angle of inclination Θ0 so that the front end is high and the back is low. According to this embodiment, since the first rotating shaft 1533 is the inclined rotating surface F1, the center of rotation of the first rotating shaft 1533 becomes oblique, so that the transport path of the upper arm 1532 and the lower arm 1531 Since the transport path can be continued on an oblique transport path, the entire transport path of the universal connecting portion 1530 can be gently continued without significantly bending, so that dust clogging and noise can be reduced. it can. In addition, as described above, the rotation P2 of the mouthpiece 560 can be increased by the rotation of the small twisting operation P1.

In other words, in this embodiment, as shown in FIG. 27A, the handle portion 301 and the mouthpiece 560 are straightly opposed to each other and suitable for straight running, as shown in FIG. The rotation P2 of the mouthpiece 560 can be set to 90 degrees without rotating the twisting operation P1 of the handle 300 by 90 degrees. Therefore, the mouthpiece 560 can be largely operated by a small operation of the handle at hand. This operation principle will be described with reference to FIG.

28A is a side view of the mouthpiece 560 conceptually showing a state A1 in which the angle of the elevation direction Y is 45 degrees and a state A2 in which the angle is 90 degrees, and FIG. A plan view of the suction body 560 in a state A1 in which the angle of the direction Y is 45 degrees and a state A0 in which the angle of the twisting operation P1 is 90 degrees from the state A1, and FIG. A front view of the mouthpiece 560 in the state A0 in the degree A is shown, and FIG. 4D is a partially enlarged view of FIG.

(A), in the same manner as the mouthpiece 550 of the first embodiment, according to the experimental verification, the mouthpiece 560 of this embodiment also has a rotation P1 of the twisting operation of the hand handle 300 (the pipe shaft B2 is connected to the mouthpiece 550). Rotation) is converted into rotation P2 of the mouthpiece 560 about the intersection G1 where the extension line F2 passing through the rotation surface F1 intersects the floor surface. However, the difference from the first embodiment is that the intersection G1 where the extension line F2 passing through the rotation surface F1 intersects with the floor surface is farther than in the first embodiment because the rotation surface F1 is inclined. . Therefore, in the state A2 in which the angle of the elevation direction Y is 90 degrees, the intersection G2 where the extension line F2 passing through the rotation surface F1 intersects the floor is located forward of immediately below the hand handle 300, but the rotation surface F1 is Unless the inclination is large, the rotation of the twisting operation P1 of the hand handle 300 can be easily performed. Depending on the angle Θ0, the intersection G2 can be located directly below the tube axis B2.

On the other hand, when the angle in the elevation direction Y is small, the angle at which the extension line F2 passing through the rotation surface F1 does not intersect the floor surface is larger than in the first embodiment, so that the angle in the elevation direction Y is large. He is enemy of places where he frequently works in posture.

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

The reason why the twisting operation P1 is enlarged to the rotation P2 is that the rotation surface F1 of the first rotation shaft 1533 is inclined by an angle Θ1 as shown in FIG. As is clear from the comparison between the diagrams (a) and (b), the angle Θ1 is 0 ° in the state A2 in which the hand handle 300 is upright, but is larger in the state A0. . That is, in the twisting operation P1, performing the twisting operation P1 at a lower position than the twisting operation P1 of the hand handle 300 at a higher position can cause the mouthpiece 560 to operate larger with a smaller twisting operation P1. Further, the same effect as described above can be obtained by increasing the angle of the rotation surface F1.

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

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

In FIG. 29, a vacuum cleaner generally indicated by reference numeral 1 is a vacuum cleaner main body 100 provided with a blower (not shown) for sucking dust, and one end is attached to the vacuum cleaner main body 100 and A flexible suction hose 200 communicating with the blower, a hand handle 300 attached to the other end of the suction hose 200 and communicating with the blower, and a connection attached to the hand handle 300 and communicating with the suction hose 200 It comprises a pipe 400 and a mouthpiece 500 attached to the connection pipe 400 and communicating with the connection pipe 400. Each part other than the mouthpiece 500 is common to the description of FIG.

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

The mouthpiece body 500 has a mouthpiece body 1000 having a mouthpiece 1010 (see FIG. 30) for sucking dust on a bottom surface, and the mouthpiece body 1000 is connected to the connection pipe 400, and is transmitted through the connection pipe 400. And a free connection portion 1500 that operates so that the bottom surface of the suction main body 1000 always contacts the floor surface in response to the movement of the hand handle 300.

The suction port main body 1000 has a suction port 1010 (see FIG. 30) provided with a rotary brush 1011 (see FIG. 30) for sucking dust on the floor surface on the bottom surface. The flexible connection part 1500 is provided to cover the connection hose 1501 and a flexible connection hose 1501 that communicates the suction body 1000 and the connection pipe 400, and is capable of rotating the suction body 1000 and the connection pipe 400. And a free hinge 1502 connected to the

The universal hinge 1502 is rotatably connected to the height direction Y of the hand handle 300 and the left-right direction X around the mouth body 500, and the rotation P1 of the twisting operation of the hand handle 300 is directly applied to the mouth body 1000. A mechanism for transmitting the rotation P2 is provided. In this embodiment, a universal hinge 1502 is rotatably attached to the suction main body 1000 and is rotatable in the vertical direction Y, and one end is attached to the connection pipe 400 and the other end is attached to the lower end. It is composed of an arm 1502a and an upper arm 1502b attached to enable rotation in the left-right direction X.

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

Further, the mouthpiece 500 is provided with a sliding member 1100 around the mouthpiece body 1000 in place of the conventional bumper, thereby improving the cleaning performance near the wall and smoothing the movement of the mouthpiece 1000 in the longitudinal direction V on the bottom surface. Wheels 1200 are provided. Furthermore, by providing a dust guide means 1300 (see FIG. 36) at the front (between the tip) of the suction port 1010 provided on the bottom surface of the suction main body 1000, it is possible to efficiently suck dust that is difficult to remove. it can.

As described above, a major feature of the present 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 is directly used as the rotation P2 of the mouthpiece 500. For example, the operation performed by the user with the handle 300 can be smoothly performed as the movement of the mouthpiece 500. Specifically, for example, by twisting the hand handle 300 by 90 degrees (rotation P1), the mouthpiece 500 is rotated by 90 degrees as shown by the dotted line in FIG. 1, and along the wall surface in the left-right direction V1 of the mouthpiece body 1000. The floor surface can be cleaned near the wall while moving back and forth in the direction. At this time, the mouthpiece 500 can be smoothly moved by the sliding member 1100 and the wheel 1200, and the damage to the wall surface can be reduced. Further, the dust on the hard-to-remove wall can be efficiently removed by the guide means 1300. 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 suction body 500, referring to FIG. 3 showing a cross-sectional view of a planar arrangement configuration of the suction body 500 and FIG. Will be described. In addition, each part other than the free connection part 1500 of the mouthpiece 500 is common to the description of FIG.

In the drawing, as described above, the mouthpiece 500 includes the mouthpiece main body 1000 and the free connection portion 1500.

The mouthpiece main body 1000 is composed of a lower case 1001 forming the framework of the mouthpiece main body 1000, a front upper cover 1002 covering the front of the mouthpiece main body 1000, and a rear upper cover 1003 covering the rear side of the mouthpiece main body 1000.

The lower case 1001 is provided with a partition wall 1004 which divides the suction main body 1000 back and forth a little rearward. 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. Both sides of 1006 are ventilation passages 1007 for driving a dubbin 1012 described later. A cutout 1008 is formed at the center of the partition wall 1004, and a bellmouth 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 cutout 1008.

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

The front upper cover 1002 covers the upper portions of the suction chamber 1005 and the ventilation path 1007, and forms the suction chamber 1005 and the ventilation path 1007 together with the lower case 1001. The provided ribs (not shown) are hooked on the lower case 1001, and are detachably attached by opening / closing levers 1022 (see FIG. 35) provided on both rear sides.

吸 A suction port 1010 is formed in the lower case 1001 below the suction chamber 1005, and a rotary brush 1011 for scraping up dust and the like is disposed in the suction chamber 1005 above the suction port 1010. Turbine 1012 is attached to both ends of rotating brush 1011.

Referring back to FIG. 30, a viewing window 1017 is provided at the front center of the front upper cover 1002 located above the rotating brush 1011. Therefore, the operation state of the rotating brush 1011 can be visually observed through the viewing window 1017, so that it is possible to know the trouble such as the stop of the rotating brush 1011 and the state of internal dirt.

On the other hand, the universal connecting part 1500 is composed of a lower arm part 1502a, an upper arm part 1502b, and a connecting hose 1501. Then, as shown in FIG. 31, the free connecting portion 1500 includes a first rotating shaft 1533 connected by the lower arm 1502a and the upper arm 1502b, and a second rotary shaft 1533 connected by the lower arm 1502a and the suction body 100. It has two rotation shafts with a rotation shaft 1535.

Referring back to FIG. 30, the cylindrical lower arm portion 1502 a has a rotating shaft 1503 formed at one end on both sides, and the rotating shaft 1503 is formed on a bearing portion 1018 formed on the mounting portion 1006 of the lower case 1001 and a rear upper cover 1003. The second rotating shaft 1535 is configured to be rotatably mounted in the up-down direction (up-down direction in the drawing) by being sandwiched by the formed bearing portion 1019.

他 端 Further, the other end of the lower arm 1502a is provided with a rotation shaft hole 1504 at the top and bottom at a position crossing the rotation shaft 1503 by 90 degrees. On the other hand, a rotating shaft hole 1505 attached to the rotating shaft hole 1504 is formed at one end of the cylindrical upper arm 1502b. 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 first rotating shaft 1533.

The other end of the upper arm 1502b is provided with a connecting portion 1507 that is 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 is attached inside the lower arm portion 1502a and the upper arm portion 1502b.

As described above, according to the universal connecting portion 1500 according to the present embodiment, the connecting hose 1501 is disposed inside the lower arm portion 1502a and the upper arm portion 1502b, so that the play of the connecting hose 1501 is reduced to minimize the distance. In addition, the connection hose 1501 can be protected from the outside.

In addition, a thick portion that protrudes outward from the other peripheral side is provided on an upper periphery of the lower case 1001, particularly on a long side opposite to the mounting portion 1006 to which the flexible connecting portion 1500 which is a front portion of the mouthpiece 500 is mounted. By forming 1020, the overall steel properties are enhanced, and a sliding member 1100 in which the thick portion 1020 is planted with hair such as nylon is insert-molded.

As described above, the mouthpiece 500 according to the present embodiment rotates the rotating brush 1011 using the turbine 1012 that rotates by the suction airflow of the blower provided in the electric vacuum cleaner main body 100 as a drive source, so that the weight of the mouthpiece 500 can be reduced. I can do it. In addition, since the attachment portion 1006 of the free connection portion 1500 is provided at the rear center of the suction chamber 1005 and the ventilation passages 1007 are arranged on both sides of the attachment portion 1006, the overall height can be reduced and a compact form can be achieved. In addition, since the attachment of the flexible connecting portion 1500 requiring steel and hermeticity 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 also be easily removed, so that the disassembly and cleaning properties can be improved. In addition, assembling can be completed only by simply attaching the rotating brush 1011 and attaching the front upper cover 1002, so that the handleability can be improved.

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

First, in FIG. 33, the mouth body 500 of the present embodiment has a thin appearance, extends the front part of the mouth body 1000 to both sides, and attaches the mounting part 1006 of the free connecting part 1500 arranged at the center of the rear part to the rear. It has a "substantially T-shaped" planar shape that projects to the outside. The entire upper surface has a round shape as a main shape to improve cleanability, and each corner has a round shape so as not to damage furniture or the like.

Further, as shown in FIGS. 34 and 32, by forming the side surface shape of the tip end of the suction port main body 1000 into a substantially wedge-shaped upper surface with a convex arc shape, the suction chamber 1005 is kept in the air range while the rotation range of the rotary brush 1011 is secured. The shape is such that the flow is easily introduced into the bellmouth body 1009, and the whole is in a compact form.

Returning to FIG. 33, in this embodiment, the thick portion 1020 is formed by connecting the suction body 500 to a piece of furniture or the like, that is, both sides in the longitudinal direction including four corners protruding to both sides of the suction body 1000. It is formed in a belt-like and convex shape continuously formed on the part and a part of the back surface. And the sliding member 1100 is continuously provided in the thick part 1020. As shown in FIG. 37, the sliding member 1100 has a brush 1101 having a short bristle made of a nylon material implanted in a brush base 1102, and the brush base 1020 is inserted into a groove portion 1021 formed in the thick portion 1020, thereby providing a brush. 1101 is fixed to the thick portion 1020. Here, the brush base 1102 can be attached to the groove 1021 to reduce the number of components, but may be divided and mounted to facilitate molding. Further, the brush stand 1102 may be formed integrally with the thick portion 1020 to improve the assemblability. However, even if the fitting cost is reduced by bonding or press-fitting utilizing the elasticity of a resin material, the cost of the equipment can be reduced. Good.

Furthermore, the purpose of employing the sliding member 1100 is to make it easy to move the front portion of the mouthpiece 500 in the left-right direction V1 (see FIG. 29) along the wall surface or the like. Therefore, the sliding member 1100 only needs to improve the sliding.

A better one can be provided with four corners protruding on both sides of the suction main body 1000 and the center of the front part to improve the mobility. The arrangement of the sliding member 1100 may be the same in the embodiment shown in FIG. For example, in the embodiment shown in FIG. 33, the brush 1101 is adopted as the sliding member 1100. However, a velvet or a fiber material may be attached to the sliding member 1100 to reduce the manufacturing cost. By adopting a thicker sliding material 1100, an effect as a bumper function can be expected. Further, the structure may be similar to that of the first embodiment.

Next, in FIG. 33, in this embodiment, the size of the suction body 500 is set to a depth D of 304 mm, the depth D1 of the suction main body, and the depth D2 of a root portion protruding to both sides in a state where the free connection portion 1500 is extended. , The depth D3 at both ends is set to 152 mm, 97 mm, and 83 mm, respectively. In this embodiment, since the length D4 of the connecting portion 1507 is set to 50 mm, the depth when the connecting portion 1507 is attached to the connection pipe 400 is set to 254 mm. Further, as shown in FIGS. 34 and 36, the height H of the mouthpiece main body 1000, the width W thereof is set to 280 mm, and the width W1 of the mouthpiece 1010 is set to 226 mm.

Next, in FIGS. 34 and 35, the mouthpiece 500 according to this embodiment has a flat upper surface with a rounded top surface, so that dirt on the upper surface can be easily wiped off, and a front upper cover 1002 constituting the upper surface. , Etc., so that it can be easily removed.

In order to realize this effect, the mouthpiece 500 according to the present embodiment covers the upper surface of the mouthpiece 500 other than the attachment portion 1006 of the free connection portion 1500 with the front upper cover 1002, and is provided on the front upper cover 1002. A pair of opening / closing levers 1022 that slide in the lateral direction of the front upper cover 1002 and ventilation holes 1016 are provided on both sides of the rear wall of the front upper cover 1002, and a hand-held recess for removing the front upper cover 1002. Reference numerals 1023 are provided on both side surfaces of the front upper cover 1002.

The ventilation hole 1016 is composed of a plurality of slits 1016a divided along the longitudinal direction of the mouthpiece 500. The slits 1016a are formed in a concave shape so as to be one step lower from the surroundings, and a punching shape is formed in the concave shape. Is integrally formed with the front upper cover 1002. According to the structure of the ventilation hole 1016, since 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, 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 external force even if it comes into contact with furniture or the like during cleaning. In addition, since the handle recess 1023 is provided on the side surface of the mouthpiece 500 (front upper cover 1002), the index finger or the middle finger is inserted into the handle recess 1023, the thumb is hooked on the opening / closing lever 1022, and the opening / closing lever 1022 is opened. 1022 can be slid outward to disengage, and pinched by thumb and forefinger (middle finger), and front upper cover 1002 can be easily removed from mouthpiece 500.

Furthermore, since the opening / closing lever 1022, the ventilation hole 1016, and the handle concave portion 1023, which easily accumulate dirt, are provided on a vertical surface, dirt is less likely to accumulate. Moreover, since the front upper cover 1002 is provided on the front upper cover 1002, the front upper cover 1002 can be removed and the front upper cover 1002 can be washed from the front and back, so that the cleaning performance can be improved. In addition, the front upper cover 1002 can be easily attached, and the upper surface of the attached suction body 500 has a continuous flat flat shape with the front upper cover 1002 and the rear upper cover 1003. Can be wiped off.

In FIG. 36, a lower case 1001 is provided with a plurality of wheels 1200 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. Be placed. The wheel 1200 has a pair of front wheels 1201 disposed on both front sides of the bottom surface of the suction body 500, a pair of rear wheels 1202 disposed behind the front wheel 1201, and a pressure on the cleaning surface during use of the electric vacuum cleaner 1. A pair of rear wheels 1203 for receiving the rear wheel are provided.

Here, the front wheel 1201 and the 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 1202 are located on the radially extending portion of the turbine 1012 of the lower case 1001, and the clearance between the lower suction port 1010 of the turbine 1012 and the cleaning floor surface. 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. In addition, since the free connecting portion 1500 is provided so as to sandwich the free connecting portion 1500, the operating range of the free connecting portion 1500 in the height direction Y, particularly the minimum angle Θ3, is not hindered.

As described above, the mouthpiece 500 according to the present embodiment is greatly characterized in that it is moved in the left-right direction V1 in addition to the movement in the front-back direction. In this embodiment, a sliding member 1210 is provided around the wheel 1200 as shown in FIG.

In this manner, five points (basic) are provided on the bottom surface of the mouthpiece 500 according to this embodiment so that the front wheel 1201 and the rear wheel 1202 are respectively disposed on the left and right, and the rearmost wheel 1203 is disposed at the rear center. Arrangement) with wheels. According to this wheel configuration, it is possible to obtain excellent running performance in the front-rear direction, and further excellent running performance not only in the left-right direction X but also in diagonal movement and rotation. In particular, since the rearmost wheel 1203 is located closer to the user than the rotation shaft 1503 of the free connection portion 1500 during use, it is possible to reduce the movement in the front-rear direction, particularly the lifting of the tip of the mouthpiece 500 when retracting. Furthermore, since the rotating shaft 1503 of the free connection part 1500 is provided in the five-point wheel, even if the mouthpiece 500 is rotated via the handle 300 at hand, the inclination of the mouthpiece 500 (lift of the corner) is reduced. it can. Moreover, since the wheels 1200 are arranged at the corners of the mouthpiece 500, it is possible to reduce the possibility of the wheels 1200 being caught during rotation.

Next, dust guide means 1300 is provided at the front of the suction port 1010 provided on the bottom surface 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 has a function of efficiently sucking in dust which is difficult to suck by the flat portion 1302 formed between the mouthpiece 1010 and the tip of the mouthpiece 500.

The guide means 1300 according to the present embodiment is for efficiently sucking in the dust which is difficult to suck. In the guide means 1300 of this embodiment, a brush 1314 is implanted 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 velocity can be increased because the number of the flow passages 1315 is reduced, and the effect of wiping the floor can be enhanced because the brushes 1314 are densely provided.

The pressure control plate 1301 receives the dust that has rushed backward in the flow path 1312 and is sucked into the suction port 1010 again.

The flexible connecting portion 1500 may be covered with a flexible sheet as shown by a dotted line. 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. By doing so, it is possible to prevent the finger from being pinched by the free connection portion 1500 and to enhance the safety.

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

38 and 39, first, the mouthpiece 500 according to the present embodiment includes an articulated hinge in which two arms (a lower arm portion 1502a and an upper arm portion 1502b) are rotatable with two rotation axes orthogonal to each other. Has adopted.

Specifically, the lower arm 1502a formed in a cylindrical shape forms cutouts 1510 and 1511 in the upper and lower portions around the rotation shaft 1503, and is cut out in an arc shape, so that the lower arm 1502a is centered on the rotation shaft 1503. The rotation of the lower arm 1502a is smoothened and the angle in the height direction Y is determined. That is, the lower notch 1510 of the lower arm 1502a, together with the notch 1024 (see FIG. 30) formed behind the mounting shaft 1006 of the lower case 1001, determines the minimum angle Θ3 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 together with the cutout 1025 (see FIG. 30) formed at the rear of the rear upper cover 1003 determine the maximum angle Θ4 of the angle in the height direction Y. In this embodiment, by setting the angle to about 95 degrees, vertical storage is possible in a state where the mouthpiece 500, the connection pipe 400, and the handle 300 are connected.

On the other hand, the lower arm 1502a and the upper arm 1502b form notches 1512 and 1513 on both sides of the rotation shaft holes 1504 and 1505, thereby determining an angle Θ5 in the left-right direction X. In this embodiment, the angle Θ5 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 height 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 to obtain the rotation P2 of the mouthpiece 500. be able to. The vertical direction Y, the horizontal direction X, and the rotations P1 and P2 can also be performed by rotating the lower arm 1502a and the suction body 1000 in the horizontal direction X and rotating the upper arm 1502b in the vertical direction Y. However, in order to improve the straightness of the mouthpiece 500, it is preferable that the rotation of the lower arm 1502a and the mouthpiece body 1000 be the 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.

Further, 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. 38 (b), a convex shaft 1504a is formed instead of the rotating hole 1504 of the upper arm 1502b of the above embodiment, and the convex shaft 1504a is changed to the rotating hole 1505 of the lower arm 1502a. A concave receiving shaft 1505a for receiving the shaft is formed, and 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 torsion force is applied to the universal connecting portion 1500. In this case, the fitting can be released without damaging the flexible connecting portion 1500 by the elastic force of the resin material, and the breakage can be avoided. Of course, it is easy to return to the original fitting state by the elastic force, and the assemblability is improved.

In FIG. 39, the distance L1 between the center of the rotating shaft 1503 and the centers of the rotating shaft holes 1504 and 1505 is determined in consideration of the minimum bending radius R of the connecting hose 1501. That is, the distance L2 between the positions 1514 and 1515 where the connecting hose 1501 is fixed to the lower arm 1502a and the upper arm 1502b and expansion and contraction is restricted 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 diameter 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 this embodiment, the minimum bending radius R of the connecting hose 1501 is set to a value in which the connecting hose 1501 is set to be slightly pulled for the reason described later, but is not limited to this. The connection hose 1501 in a normal state may be employed.

In addition, in this embodiment, since the connecting hose 1501 is covered by the lower arm 1502a and the upper arm 1502b, a reinforcing member is provided at a portion where the connecting hose 1501, the lower arm 1502a, and the upper arm 1502b are in contact. By doing so, it is possible to reduce troubles such as the connection hose 1501 being worn out and making a hole, and to enhance 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, a lock mechanism 1516 for temporarily locking the rotation in the left-right direction X at a position of 90 degrees is provided. For example, in this embodiment, a position where the lower arm 1502a and the upper arm 1502b are linear on the sliding surface of the lower arm 1502a and the upper arm 1502b in a state where the rotary shaft holes 1504 and 1505 are fitted with the pins 1506. A convex portion 1517 and a concave portion 1518 are provided. Note that the strength of the engagement between the convex portion 1517 and the concave portion 1518 is determined as appropriate in terms of the distance from the rotation axis and the size of the unevenness in consideration of the elasticity of the resin material.

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, so that the rectilinearity of the mouthpiece 500 is improved and the front-back movement is achieved. Becomes easier. On the other hand, when the mouthpiece 300 is to be rotated via the hand handle 300, the fitting between the convex portion 1517 and the concave portion 1518 formed of a resin material is 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 is formed at a predetermined angle (45 degrees, 90 degrees, or the like) with a high frequency. A plurality may be provided.

Next, an assembly process of the universal connection portion 1500 will be described with reference to FIG. First, the connection hose 1501 of this embodiment is attached to the bell mouth body 1009 and the upper arm 1502b so as to be pulled. 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. Therefore, when the lock mechanism 1516 is 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, as one means for improving the straightness of the mouthpiece 500, the pulling force of the connecting hose 1501 is used. For example, a pulling member such as a spring or rubber is provided on both sides symmetrically. Thus, straightness may be improved.

In this embodiment, since the connecting hose 1501 is disposed in the universal hinge 1502, the assembly 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. 13A, a connecting hose 1501 is passed through the lower arm 1502a, and one end of the connecting hose 1501 is attached to a rear end 1009a of the bell mouth body 1009, and the bell mouth body 1009 is partitioned. The bell mouth body 1009 is attached to the notch 1008 provided at the center of the wall 1004, the rotation shaft 1503 of the lower arm 1502a is attached to the bearing 1018 of the attachment 1006 of the lower case 1001, and the rear upper case 1003 is attached. And the lower arm 1502a. At this time, the other end of the connecting hose 1501 is fitted with a fitting hole 1519 provided in the upper arm 1502b to connect the connecting hose 1501 to the upper arm 1502b, and the upper rib 1502b is connected to the connecting hose 1501. And a connecting portion 1521 provided with a packing 1521b for maintaining airtightness.

Next, as shown in FIG. 13B, the upper arm 1502b and the lower arm 1502a cross each other, the connecting portion 1521 is inserted into the upper arm 1502b, and the fitting hole 1519 and the convex rib 1520 are fitted. Then, the connection hose 1501 and the lower arm 1502a are connected.

Next, as shown in FIG. 10C, the upper arm 1502b is pulled to align the rotary shaft holes 1504 and 1505, and the pin 1506 is inserted, thereby connecting the upper arm 1502b and the lower arm 1502a to connect freely. 1500 assembly can be completed.

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

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

In FIG. 41, the other end of the connecting hose 1501 is attached with a connecting portion 1521a provided with the same packing 1521b as in the above embodiment. The connecting portion 1521a is provided with a protruding rib 1520a which can be cut and pushed inward, and the upper arm portion 1502b is fitted with the protruding rib 1520a, and a fitting hole 1519a which can be cut and protruded outward. Is provided with a release button 1519b. 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, it is possible to easily clean the inside of the connection hose 1501 that is easily contaminated. In addition, if the connection hose 1501 and the attachment portion 1009a of the bell mouth body 1009 are detachably attached to each other, for example, if the attachment hose 1001 is screwed into the attachment portion 1009a, the connection hose is disengaged. By rotating the 1501, the connecting hose 1501 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, the connection hose 1501 can be easily washed and dried.

Next, the operating principle of the mouthpiece 500 according to the present embodiment will be described with reference to FIG. The mouthpiece 500 according to this embodiment can transmit the rotation P1 of the twisting operation of the hand handle 300 to the rotation P2 of the mouthpiece main body 1000 as it is. The principle of this operation can be described as follows, for example.

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

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

In FIG. 7A, in this embodiment, a first rotation shaft 1533 and a second rotation shaft 1535 are arranged on an extension of the central axis Q of the connection pipe 400. That is, the tube axes of the lower arm 1502a and the upper arm 1502b are arranged on an extension of the central axis Q of the connection pipe 400. According to the experimental verification of this embodiment, the rotation P1 of the twisting operation of the hand handle 300 is converted into the rotation P2 of the mouthpiece 500 about the intersection G1 where the extension of the central axis Q intersects the floor. Is done. Therefore, in the state A2 in which the angle of the elevation direction Y is 90 degrees, the intersection G2 where the extension of the central axis Q intersects the floor is located directly below the handle 300, so that the rotation of the twisting operation P1 of the handle 300 is performed. It can be done easily. On the other hand, as shown in FIG. In the state A3 in which the angle in the elevation direction Y is small, the intersection G3 is far away, so that the rotation P2 of the mouthpiece 500 cannot be obtained unless the twist rotation P1 is applied with a large force. Moreover, as is apparent from the figure, if the angle in the elevation direction Y is too small, the extension line of the central axis Q does not intersect the floor surface, so that the rotation P2 of the mouthpiece 500 cannot be obtained.

Now, in order to elucidate the operation principle of the present embodiment, the first state A1 of the rotation operation and the final state A0 of the rotation operation are changed by rotating and moving the handle 300 side while fixing the suction body 500. Compare. First, as shown in (a) and (b), in the first state A1, an intersection G1 at which the extension of the central axis Q intersects the floor is set substantially at the center of the mouthpiece 500. However, as shown in (b) and (c), when the hand handle 300 is moved to the final state A0 by applying the twisting operation P1, the intersection G0 where the extension line of the central axis Q intersects the floor surface is a suction body. 500 is set on one side in the longitudinal direction. That is, in the normal operation state, the hand handle 300 is operated at a predetermined position by the user, and thus the rotation P2 of the mouthpiece 500 rotates while moving the intersection G1 which is the center of the rotation P2 to G0. . More specifically, when the twisting action P1 of the hand handle 300 is applied in the direction of the arrow E1, the suction body 1000 that originally intended to rotate according to the twisting action P1 is prevented from rotating by the floor surface. Therefore, the first rotating shaft 1533 operates so as to rotate while tilting the rotating shaft and escape in the direction of the arrow E2. On the other hand, the second rotating shaft 1535 operates to receive the twisting operation P1 on the entire bottom surface of the mouthpiece 500, and follows and interlocks with the first rotating shaft 1533 that rotates while tilting the rotating shaft. , Gradually rotate, that is, operate to increase the angle in the height direction Y. As a result, the mouthpiece 550 rotates in the direction of the arrow E3 while the center position of the rotation P2 is changed from G1 to G0. In this embodiment, since the first and second rotating shafts are provided on an extension of the central axis Q, the center of the rotation P2 of the mouthpiece 550 moves little.

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

In FIG. 43, first, as in the first embodiment, the vacuum cleaner 1 according to the present embodiment is configured such that the user holds the hand handle 300 in the standing posture, and The floor can be cleaned by operating 500. At this time, since the vacuum cleaner main body 100 connected to the handle 300 via the suction hose 200 is provided with a pair of large wheels 101 and one free wheel 102, cleaning can be performed while moving. it can. In this embodiment, too, the length of the extension tube 10 is set so that the user's most operable operation range, that is, the angle of the extension tube 10 is 45 degrees, according to the average body shape of a Japanese woman. I have. Since the handle portion 301 of the handle 300 is set at about 110 degrees, the user holding the handle portion 301 can easily move in the front-rear direction when the angle of the extension tube 10 is 45 degrees. Can be. In addition, since the lower arm portion 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 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 45 degrees. In addition, even if the mouthpiece 500 is moved in the front-rear direction, it is possible to reduce the displacement of the mouthpiece 500 in the left-right direction X. Further, in this embodiment, since the lock mechanism 1516 and the connecting hose 1501 provided for pulling are provided, the straightness of the mouthpiece 500 can be further improved.

In addition, the wheels 1200 provided on the bottom surface of the mouthpiece 500 rotate as normal wheels around the rotating shaft 1211 to improve the straightness. In particular, the rearmost wheel 1203 reduces the lifting of the distal end portion of the suction body 500 in the front-rear movement, so that good straightness can be obtained. In addition, in this embodiment, the brush 1214 of the guide unit 1300 and the double brush of the rotating brush 1011 can double-screw dust on the floor surface to increase the suction efficiency.

Here, in this embodiment, the lower arm 1502a rotates in the height direction Y and the upper arm 1502b rotates in the left-right direction X, so that the extension pipe 10 in the normal posture is in a state of 45 degrees. Straightness 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 previous 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.

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

First, in FIG. 7A, both the handle portion 301 and the mouthpiece 500 are in a state where they are straight ahead and run straight, that is, suitable for the front-rear direction V2.

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, since the wheel 1200 of the suction body 500 slides sideways, it is possible to move in the front-back direction while the suction body 500 is tilted. For example, it is very effective when cleaning a narrow part with an obstacle in front. In addition, since the direction of the wheels 1200 is changed by changing the direction of the mouthpiece 500, the course of the mouthpiece 500 can be easily changed like turning a steering wheel of an automobile.

(C) When the handle portion 301 is twisted by 90 degrees as shown in FIG. 9C, the direction of the mouthpiece 500 can be set to a horizontal direction inclined by 90 degrees by the action of the universal connection portion 1500. In this state, since the wheel 1200 of the suction body 500 slides sideways, the suction body 500 can be moved in the left-right direction V1 with the suction body 500 lying right beside. This posture is extremely effective for cleaning the wall. The cleaning at the side of the wall will be described with reference to FIG.

In FIG. 45, (a) shows a state in which the side of the wall is cleaned while the mouthpiece 500 is placed right next to it, and (b) shows a state in which the mouthpiece 500 is placed right next to the wall with a margin of shoulder width along the wall. The state in which the wall is cleaned in the state is shown. 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. 45, the suction body 500 can be moved in the left-right direction V1 while the front handle is moved back and forth, and the suction body 500 is placed directly beside, with the tip of the suction body 500 being 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 portion allows the dust between the suction port 1010 and the wall surface to be removed. Can be efficiently sucked.

Next, in FIG. 46, the mouthpiece 500 according to this embodiment can reduce the overall height H while providing the turning performance of the mouthpiece 500, so that the cleaning performance of a low portion such as a lower part of furniture can be cleaned. Is excellent. 46 (a) and (b) are a side view and a plan view of a conventional example in use, and FIGS. 46 (c) and (d) are a side view and a plan view of this example in use.

As is clear from the comparison between the figures (a) and (c), according to the present embodiment, the lower handle 300 can be inserted into the lower gap, but in the conventional example, the bent joint is used. Therefore, if the handle 300 is lowered, the bottom surface of the suction body 500 will float. In the conventional example, as shown in FIG. 13B, the joint H bent by the operation of twisting the hand handle 300 can be laid down to lower the overall height H. However, since the mouthpiece 500 faces obliquely, the depth of the clearance is increased. There remains a problem in the cleanability of garbage. On the other hand, in the present embodiment, as shown in FIG. 4D, 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. In particular, in this embodiment, the height of the mouthpiece 500 can be significantly reduced because the free connecting portion 1500 has a linear shape.

(Fourth embodiment)
Next, another embodiment of the vacuum cleaner according to the present invention will be described with reference to FIGS. The fourth embodiment is different from the third embodiment in that the mouthpiece 500 of the third embodiment is changed to a mouthpiece 510 in which a connecting hose 1630 serving as a transport path and a support member of the mouthpiece 500 are 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 the description thereof will be omitted.

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

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

The free hinge 1602 is rotatably connected to the height direction Y of the hand handle 300 and the left-right direction X around the mouth body 510, and the rotation P 1 of the twisting operation of the hand handle 300 is directly connected to the mouth body 1050. A mechanism for transmitting the rotation P2 is provided. In this embodiment, a first Y-shaped body 1604 provided on the suction main body 1050, a second Y-shaped body 1605 attached to the connection portion 1601, the first Y-shaped body 1604 and the second Y-shaped body 1605 And a connecting body 1606 that is mounted rotatably about the intersection S1 where the rotating shaft is perpendicular to and connects the two Y-shaped bodies 1604 and 1605.

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

In addition, the mouthpiece 510 is provided with a sliding member 1100 around the mouthpiece main body 1050, thereby improving the cleaning performance near the wall and at the bottom surface of the universal wheel 1250 (smoothly moving the mouthpiece 1050 in the longitudinal direction V). 50 (see FIG. 50). Furthermore, by providing the dust guide means 1300 (see FIG. 50) at the front (between the tip) of the suction port 1010 provided on the bottom surface of the suction main body 1050, it is possible to efficiently suck the dust near the wall which is difficult to remove. it can. The sliding member 1100 is the same as that of the first embodiment, and the description is omitted.

As described above, according to the mouthpiece 510 according to the present embodiment, the connection hose 1603 having the same effect as the first embodiment and having a function of conveying dust is rotatably supported by the mouthpiece 510. Since the structure is separated from the flexible hinge 1602, the structure can be simplified and the manufacturing cost can be reduced.

Hereinafter, the mouthpiece 510 will be described in detail with reference to FIGS. 48 is a structural view of a part, FIG. 49 is a structural view of a universal hinge, FIG. 50 is an external bottom view, FIG. 51 is a schematic sectional view, and FIG.

First, the component configuration of the mouthpiece 510 will be described with reference to FIGS. In the drawing, as described above, the mouthpiece body 510 includes the mouthpiece main body 1050 and the free connection portion 1600. The mouthpiece main body 1050 includes a lower case 1051 that forms the skeleton of the mouthpiece main body 1050, a front upper cover 1052 that covers the front of the mouthpiece main body 1050, and a rear upper cover 1053 that covers the rear of the mouthpiece main body 1050.

The rear upper cover 1053 is attached to the lower case 1051 via screws, and forms a ventilation path 1007 (not shown) disposed rearward on both sides. An attachment portion 1055 of the connection hose 1603 is disposed 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 path 1007 is provided on both sides thereof.

The front upper cover 1052 is detachably attached to the lower case 1051 to form the dust collection 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 provided 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 sucked while the dust on the cleaning surface is wound up. .

The universal connecting part 1600 is composed of a connecting part 1601, a universal 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 to connect with the second Y-shaped body 1605. The portion 1507 is positioned substantially on the extension of the central axis Q. As shown in FIG. 51, the dust collection path 1607 formed in the connecting portion 1507 is gently bent and disposed in front of the second Y-shaped body 1605. A mounting portion 1608 of a connection hose 1603 communicating with the dust collection path 1607 is formed at a front portion. Thus, the clogging of the dust collection path 1607 is reduced. The connection hose 1603 is detachably attached to the attachment portion 1608 and the attachment portion 1055 of the mouthpiece main body 1050.

Next, the free hinge 1602 will be described with reference to FIG. In the figure, the free hinge 1602 is capable of rotating on both axes by rotating a rotation axis Y1 rotatable in a height direction Y and a rotation axis X1 rotatable in a left-right direction X at one point of an intersection S1. And the structure. Rotating shafts 1604a and 1405a are provided inside the distal ends of a first Y-shaped body 1604 provided on the suction opening body 1050 and a second Y-shaped body 1605 attached to the connecting portion 1601, respectively. It is rotatably attached to a bearing hole 1606 (not shown). The free hinge 1602 is an articulated hinge, as in the first embodiment, although the rotation axis Y1 and the rotation axis X1 are orthogonal to one another at the intersection S1. Therefore, this operation principle can be described, for example, in the same manner as the principle described with reference to FIG. That is, in this embodiment, it can be considered that the length of the lower arm 1502a is reduced and the length is eliminated. Therefore, also in this embodiment, in addition to the height direction Y and the left-right direction X, the same rotation angle as the rotation angle of the rotation P1 of the hand handle 300 is transmitted to the 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, by intersecting at the intersection S, the free hinge 1602 can be made very compact.

Next, the structure of the bottom surface of the mouthpiece 510 will be described with reference to FIG. In this figure, this embodiment employs a universal wheel 1250 having excellent running properties, particularly excellent turning properties. 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 four wheels are arranged 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 suction body 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 suction body 510.

In this embodiment, the free wheel 1250 is provided in the recess so that 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. The strength and the weight of the body 510 are increased.

Further, in this embodiment, the guide means 1300 is provided at the front portion of the bottom surface of the suction body 510, so that the clearance between the suction port 1010 disposed between the front wheel 1252 and the guide means 1300 and the cleaning floor surface is fixed. I try to keep it. Thus, the guide means 1300 can be provided with a function like a wheel having no direction, so that it is possible to maintain the suction efficiency while improving the turning performance.

In the guide means 1300 of this embodiment, a brush table 1215 in which the brush bundles 1310 are arranged in a row in the longitudinal direction of the mouthpiece 510 is attached to the tip of the flat portion 1302.

In FIGS. 51 and 52, in this embodiment, the connecting hose 1630 is attached in a state where the angle of the height direction Y is 0 degree and is tight so that the tip of the mouthpiece 510 does not rise. Thereby, even when the mouthpiece 510 is inserted into a low gap such as under a desk as shown in FIG. 51, the tip does not rise, and the connection pipe 400 has a frequently used posture of 45 degrees, Even in a posture in which the angle in the left-right direction X is 90 degrees as shown in FIG. 51, the extra connection hose 1630 hinders the maintenance of the posture, adds to the twisting operation of the hand handle, or the connection hose 1630 It is less likely to break and cause jams.

Further, in this embodiment, since the connecting hose 1630 forming the dust transfer passage and the support member of the suction body 510 are separated, for example, as shown in FIG. 52, the connection hose 1630 is mounted on the mounting portion 1055 of the suction main body 1050. By removing the connecting 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. In this case, if the clearance nozzle is mounted near the mouthpiece 510, for example, by attaching a mounting device to the connection portion 1601, the work efficiency can be improved.

Further, as an application example of the above-described embodiment, the length of the second Y-shaped body 1605 is increased to shorten the connecting pipe 400, or the second Y-shaped body 1605 is removed and the second Y-shaped body 1605 having a long handle is directly attached to the handle 300 at hand. By extending the length of the connection hose 1630 by attaching a character 1605 or the like, the operation range of the connection hose 1630 having a clearance nozzle can be widened. In this case, the connecting hose 1630 is detachably held on the second Y-shaped body 1605 so that the connecting hose 1630 does not disturb 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 conveyance path and the support member of the suction body 510 are separated, the operating range in the left-right direction X can be easily set to 180 degrees or more, and the height direction Y can be easily set to 90 degrees or more. be able to.

As described above, according to the fourth embodiment, the same effect as that of the third embodiment can be expected, and the dust transfer passage and the support member of the suction body 510 are separated, so that the universal hinge 1602 can be simplified. The structure can be reduced in size and the manufacturing cost can be reduced. Moreover, if one end of the connecting hose 1630 serving as a transport passage is removed, the auxiliary suction port is used as another auxiliary suction port, and if the both ends are further removed, the maintenance property and the cleaning property can be improved. Further, the operation range of the universal connection part 1600 can be widened.

Note that, in this embodiment, the rotation axis of the Y-shaped body 1604 and the second Y-shaped body 1605 are orthogonally mounted and rotatably mounted about the intersection S1 where they intersect, but the present invention is not limited to this. is not. For example, a mechanism having the operation principle described with reference to FIGS. 25 and 28 and a connecting hose 1630 separated from the mechanism may be used. In this case, the connecting hose 1630 may be appropriately fixed to the mechanism, or may be provided with a separate guide.

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

The mouthpiece 520 of this embodiment includes a mouthpiece body 1060 having a substantially rectangular parallelepiped planar shape, and a free connecting portion 1700 attached to the center of the upper surface of the mouthpiece body 1060. The universal connecting portion 1700 has the same structure as the universal connecting portion 1500 including the connecting hose 1501 in the universal hinge 1502 described in the first embodiment.

The suction port main body 1060 is composed of a lower case 1061 and an upper case 1062, and forms a suction chamber 1050. In the suction chamber 1050, two suction ports 1010a and 1010b formed in the lower case 1061 are disposed before and after (short direction) of the suction body 520, and a rotary brush 1011 is provided in the suction ports 1010a and 1010b. I have. In this embodiment, the rotating brush 1011 is rotated via a belt by an electric motor 1063 provided between the suction port 1010a and the suction port 1010b. The electric motor 1063 is powered 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 a wiring provided therein. It should be noted that an air turbine driven device may be employed as in the above embodiment. In addition, the electric motor 1063 is arranged below the attachment portion of the free connection 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 the shape of a so-called boiler, and a hose mounting portion 1064 to which a connecting hose 1501 is mounted is provided at the center of the upper surface. The rotation shaft 1503 of the lower arm part 1502a constituting the universal hinge 1502 is attached to both sides of the suction body 520, that is, on the longitudinal direction side of the mouthpiece 520, to form a pair of bearing stands 1065, and the universal connection part 1700 is attached rotatably. Has been.

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

In this embodiment, the connecting hose 1501 and the free connecting portion 1700 are provided directly above and below the upper case 1062 symmetrically in the front-rear and left-right directions. By doing so, the height H1 can be reduced, and the movement of the free connecting portion 1700 in a state where the angle in the height direction Y is small is improved. In this case, it is preferable that the horizontal width (the front and rear sides of the mouthpiece 520) of the universal connection part 1700 does not protrude from the projected area of the mouthpiece 520 in a state where the angle of the horizontal direction X of the universal connection part 1700 is 90 degrees.

滑 り Around the side surface of the mouthpiece 520, a sliding member 1100 similar to the above embodiment is formed in a belt shape. Further, around the bottom surface of the suction body 520, a guide means 1300 similar to that of the above-described 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, at the four corners of the bottom surface or at the center or both sides at the rear of the bottom surface where the force of the handle 300 is most applied, the same wheels 1200 and free wheels 1250 as those in the above-described embodiment may be provided so as to be able to turn back and forth, left and right, and turn. .

As described above, according to the fifth embodiment, since the 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. 45 (c) 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 the wall surface. 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.

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

The suction port main body 1070 has an opening 1071 at the rear center thereof communicating with the suction chamber, and a pair of bearing stands 1072 is formed on both sides of the opening 1071. One end of the lower arm portion 1801a has an arc-shaped side surface, and a rotation shaft 1802 is provided on both side surfaces, and is rotatably attached to the bearing stand 1072. The peripheral shape of the opening 1071 is formed so as to match the arc shape of one end of the lower arm 1801a, so that there is no air leakage. An opening 1803 formed at one end of the lower arm 1801a is formed to be narrower in the vertical direction than the opening 1071 of the suction main body 1070, and the openings 1071 and 11803 communicate with each other in the operation range in the height direction Y. I am trying to do it. 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 rotary bearing 1804 is provided on the upper and lower inner sides of the tip.

Also, one end of the upper arm portion 1801b has an upper surface formed in an arc shape, 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 portion 1801a is formed so as to match the arc shape of one end of the upper arm portion 1801b, so that there is no air leakage. The opening 1807 formed at one end of the upper arm 1801b is formed to be narrower in the left-right direction than the opening 1806 of the lower arm 1801a, and the opening 1806 communicates with the opening 1807 in the operating range in the left-right direction X. I am trying to do it. On the other hand, the other end of the upper arm portion 1801b is provided with a connecting portion 1521 that is detachably connected to the connection tube 400.

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.

(Seventh embodiment)
Next, a seventh embodiment according to the present invention will be described with reference to FIGS. In this embodiment, the operation guide means is provided in the connecting hose 1501 having the function of the dust conveyance path of the above embodiment, and the universal hinge 1502 is omitted. FIG. 56 is a schematic external perspective view, FIG. 57 is an enlarged view of a universal connecting hose, and FIG. 58 is a structural conceptual view of another application example.

First, in FIGS. 56 and 57, the mouthpiece 540 of this embodiment includes a mouthpiece body 1080 and a freely connecting hose 1900. The free connecting portion 1900 is a hose body having an appearance in which concave portions 1901 and convex portions 1902 are alternately continuous in the pipe direction. One end is attached to the attaching portion 1801 of the suction mouth body 1080, and the other end is attached to the connecting pipe 400. Are connected.

自在 Further, the universal 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, left and right operation guide ribs 1904 are integrally formed on the mounting side の of the connecting portion 1507 so as to be perpendicular to the mounting position of the vertical operation guide rib 1903.

The vertical movement guide rib 1903 is formed in a convex shape so as to fill the recess 1901 so as to prevent the flexible connecting hose 1900 from bending in the left-right direction X and 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 recess 1901 so as to prevent the flexible connecting hose 1900 from bending in the height direction Y and to bend in the left-right direction X. The vertical operation guide ribs 1903 and the left and right operation guide ribs 1904 can reduce the torsion of the universal connection hose 1900.

幅 The width Z1 and the protrusion amount Z2 of the vertical operation guide rib 1903 and the left and right operation guide rib 1904, the cross-sectional shape, the length, and the like are appropriately determined in consideration of the size and weight of the suction main body 1080. For example, as shown in FIG. 58, the up / down operation guide rib 1903 and the left / right operation guide rib 1904 may be replaced by a separate badge 1905, and 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. In addition, 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 that of 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 or a suction body of a handy cleaner that needs to be reduced in weight.

(Other Examples)
FIGS. 59 and 60 show another embodiment relating to the handle at hand. 59 and 60 are conceptual diagrams of the operation.

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

According to this embodiment, the mouthpiece is rotated without rotating the handle 310 by holding the handle portion 301 of the handle 310 with one hand and operating the grip 411 or the rotation handle 412 with the other hand. Can be done. In addition, since the handle 310 is not rotated, even if the rotation P2 in the left-right direction X of the mouthpiece is set to 180 degrees or more, there is no trouble in operation.

FIG. 60 shows another embodiment relating to the handle portion of the handle at hand. The hand handle 320 according to this embodiment is formed so as to bend and attach the connection pipe 400 and the suction hose 200, and the handle section 322 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. A wrist holder 323 is provided on the suction hose 200 side behind the handle 322.

According to this embodiment, the handle portion 322 is held with one hand, and the held wrist of one hand can be stabilized by the wrist holder 323, so that the twisting operation with the hand handle 320 is easy, Since the wrist handle 320 can be operated by an operation 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 wrist handle. In this embodiment, the wrist is fixed by the wrist holder 323. Therefore, the operation of lifting the mouthpiece around the elbow becomes easy. If the handle portion 322 is provided with the infrared transmitting portion 303, transmission through the ceiling becomes good, and erroneous operation can be reduced.

Next, FIGS. 61 and 62 are external views in which the mouthpiece employed in the above embodiment is applied to another type of vacuum cleaner, and FIG. 61 is an external view of a vacuum cleaner called a stick type. 1 is an external view of a handy type vacuum cleaner.

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

In FIG. 61, in this embodiment, a vacuum cleaner main body 150 provided with a blower for sucking dust, a suction body 550 attached to one longitudinal end of the vacuum cleaner main body 150 and communicating with the blower, A suction handle body 550 having a suction port for sucking dust on the bottom surface, the suction body 550 comprising a hand handle 300 attached to the other longitudinal end of the vacuum cleaner main body 150; Is connected to the vacuum cleaner main body 150, and a universal connection part 1530 for synchronizing the rotation angle P1 of the hand handle 300 and the rotation angle P2 of the mouthpiece transmitted through the vacuum cleaner main body 150 is provided. 151 is a sub handle of the vacuum cleaner main body 150.

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

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

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

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

Further, according to the above-described embodiment, it is possible to provide a suction body for a vacuum cleaner capable of efficiently rotating the suction body by rotating the hand handle, and a vacuum cleaner including the suction body. .

Specifically, 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 the other end of the suction hose A hand handle attached to the blower and attached to the blower, a connection pipe attached to the hand handle and connected to the suction hose, and a suction body attached to the connection pipe and connected to the connection pipe, The mouthpiece, a mouthpiece body having a suction port for sucking in dust, the mouthpiece body being connected to the connection pipe, and the rotation angle of the hand handle and the rotation angle of the mouthpiece transmitted through the connection pipe. Is provided, so that the mouthpiece can be efficiently rotated by the rotation of the handle at hand.

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

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

Further, the universal hinge portion is composed of a first universal connection portion and a second universal connection, and the first mechanism portion and the second mechanism portion have a first rotating shaft that rotates in the X direction. The first mechanism is rotatably mounted with the suction mechanism and a second rotating shaft that rotates in the Y direction. The second mechanism is attached to the connection pipe. So that it can be mounted. Specifically, 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 port main body by a second joint hinge having an axial direction perpendicular to the axial direction of the first joint hinge. Since it is rotatably mounted, the first indirect hinge allows the hand handle to move in the left-right direction, and the second indirect hinge allows the hand handle to operate in the height direction. And right and left movement and turning performance can be improved.

清掃 Further, by setting the operation range of the first indirect hinge (first rotation axis) to be equal to or more than the 180-degree range, it is possible to improve the cleaning performance of a narrow clearance. In addition, by setting the operation range of the second joint hinge (second rotation axis) to 90 degrees or more, it is possible to store the handpiece, the connection pipe, and the mouthpiece in the upright posture in a connected state. 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, by connecting the free connecting portion constituted by the plurality of indirect hinge portions by pulling the free end thereof with a pulling member such as a connecting hose, it is possible to improve the straightness and the turning property.

姿勢 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, straightness and maintaining the posture can be improved. Further, if the posture holding mechanism is provided in an indirect hinge portion that enables rotation in the left-right direction, straightness can be improved.

Furthermore, by attaching the free connecting portion to one side in the short direction of the mouthpiece main body, the overall thickness can be reduced. Further, with the mouthpiece swiveled 90 degrees, the free connecting portion is attached to the upper surface of the mouthpiece body so as not to protrude from the projected area of the mouthpiece, thereby reducing the installation area of the mouthpiece and cleaning the gap. Can be improved. In addition, storage and packing can be improved.

The swivel performance of the mouthpiece can be improved by providing the free connecting portion such that the center of gravity of the mouthpiece body is positioned 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 the dust suction hole is provided at least at a front portion of the bottom surface (a bottom end portion at a position facing the short side where the free connecting portion is attached). By providing a guide means for guiding the surface, for example, a member having a small coefficient of friction such as a brush or a groove, the cleaning property at the wall side can be improved.

Moving the suction body along a wall surface or the like 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 in which the free connecting portion is attached. And damaging the wall surface and the like can be reduced.

Further, by providing a moving means such as a wheel or a projection having a low coefficient of friction that has excellent mobility in the left-right direction in addition to front and rear, the straightness, the left-right direction, and the turning property of the mouthpiece can be improved. it can. 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 a substantially extended line of the connection pipe. In addition, if the moving means is provided behind the attachment position of the universal connecting portion, the floating of the tip end of the mouthpiece can be reduced, and the traveling effect can be improved.

A suction body formed by arranging the upper body in a lower case having a suction port on a lower surface of the suction body; a rotary cleaning body provided in a suction port of the suction main body; A driving means for driving the second main body, a second universal connecting portion provided with a casing having a suction passage provided at a rear portion of the mouth main body, and a rear end provided at a rear end of the second universal connecting portion. A second universal connecting portion having a connection pipe joint, and a suction body having a flexible suction hose communicating the rear end of the casing and the connection pipe joint, wherein the suction hose comprises: Arranged inside the first universal connection portion and the second universal connection portion, the second universal connection portion swings up and down via a second hinge whose both sides are supported by the suction body. And the first universal connection is attached to the rear of the second universal connection. By providing the 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, a compact suction body having an air turbine mechanism and excellent in turning performance is provided. Can be provided.

Further, the suction body comprises a suction body provided with a suction port for sucking dust, and a free connection portion, and a connection portion for directly or indirectly connecting the free connection portion to a handle at hand, and one end. Is connected to the suction main body, and the other end is connected to the connection portion to form a dust transfer passage; and a hand that connects the connection portion and the suction main body and is transmitted through the connection portion. By including the universal hinge portion for synchronizing the rotation angle of the handle and the rotational angle of the mouthpiece, it is possible to provide a mouthpiece with a compact hinge portion and excellent turning performance.

At this time, the universal hinge is rotated into a first Y-shaped body provided in the suction opening main 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 shaft perpendicular to the connector and connecting the two Y-shaped members so as to be rotatable about the intersection thereof, the hinge part having excellent turning characteristics can be reduced in size.

Further, the mouthpiece is constituted by a mouthpiece body and a universal connection part, and the universal connection part is rotatably attached to the mouthpiece body and is capable of rotating in a vertical direction. The other end is attached to the connection pipe, and the other end is composed of the lower arm and a cylindrical upper arm attached so as to be able to rotate in the left-right direction. By configuring so as to communicate in the 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, a free connection hose having one end connected to the suction body, and a connection portion attached to the other end for connection to a connection pipe, wherein the free connection hose has a concave portion and a convex portion. Up and down movement guide means are provided on both sides on the mounting side of the suction opening body, and left and right movement guides are provided on upper and lower portions orthogonal to the mounting position of the up and down movement guide means on the connecting portion side. By providing the means, the hose body can be 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.

1 is an external perspective view of a vacuum cleaner showing an embodiment of the vacuum cleaner according to the present invention. The component block diagram of the suction body which shows one Example of the vacuum cleaner which concerns on this invention. Sectional drawing of the planar arrangement structure of the suction body which shows one Example of the vacuum cleaner which concerns on this invention. Sectional drawing of the side surface arrangement structure of the suction body which shows one Example of the vacuum cleaner which concerns on this invention. Sectional drawing of the side surface arrangement structure of the suction body which shows one Example of the vacuum cleaner which concerns on this invention. The external appearance perspective view of the mouthpiece which shows one Example of the vacuum cleaner concerning the present invention. The external appearance side view of the mouthpiece which shows one Example of the vacuum cleaner concerning this invention. 1 is an external rear view of a mouthpiece showing an embodiment of a vacuum cleaner according to the present invention. The bottom view of the mouthpiece which shows one Example of the vacuum cleaner concerning the present invention. FIG. 3 is a diagram showing a mechanism for attaching and detaching a front upper cover of the vacuum cleaner according to an embodiment of the present invention. Sectional drawing of the principal part of the sliding member which shows one Example of the vacuum cleaner which concerns on this invention. The other application explanatory drawing of the sliding member which shows one Example of the vacuum cleaner which concerns on this invention. FIG. 3 is a mechanism diagram of a retractable wheel showing an embodiment of the vacuum cleaner according to the present invention. Sectional drawing of another application example of the wheel which shows one Example of the vacuum cleaner concerning this invention. FIG. 3 is a lock mechanism diagram of a first rotating shaft showing an embodiment of the vacuum cleaner according to the present invention. FIG. 6 is a structural view of another application example of the first rotating shaft, showing an embodiment of the vacuum cleaner according to the present invention. FIG. 6 is a structural view of another application example of the first rotating shaft, showing an embodiment of the vacuum cleaner according to the present invention. The lock mechanism figure of the 2nd rotating shaft which shows one Example of the vacuum cleaner concerning this invention. The use state figure showing one embodiment of the vacuum cleaner concerning the present invention. The use state figure showing one embodiment of the vacuum cleaner concerning the present invention. The use state figure showing one embodiment of the vacuum cleaner concerning the present invention. The use state figure showing one embodiment of the vacuum cleaner concerning the present invention. The storage state figure showing one embodiment of the vacuum cleaner concerning the present invention. The storage state figure showing one embodiment of the vacuum cleaner concerning the present invention. Operation principle diagram of mouthpiece showing one embodiment of the vacuum cleaner according to the present invention Sectional drawing of the suction body which shows the 2nd Example of the vacuum cleaner which concerns on this invention. The storage state figure which shows the 2nd Example of the vacuum cleaner which concerns on this invention. Operation principle diagram of mouthpiece showing second embodiment of vacuum cleaner according to the present invention FIG. 7 is an external perspective view of a vacuum cleaner showing a third embodiment of the vacuum cleaner according to the present invention. FIG. 6 is a structural view of a suction body showing a third embodiment of the vacuum cleaner according to the present invention. Sectional drawing of the planar arrangement structure of the suction body which shows the 3rd Example of the vacuum cleaner which concerns on this invention. Sectional drawing of the side surface arrangement structure of the suction body which shows the 3rd Example of the vacuum cleaner which concerns on this invention. The external appearance perspective view of the mouthpiece which shows the 3rd Example of the vacuum cleaner which concerns on this invention. The exterior side view of the suction body which shows the 3rd Example of the vacuum cleaner which concerns on this invention. The rear view of the external appearance of the suction body which shows the 3rd Example of the vacuum cleaner which concerns on this invention. The bottom view of the mouthpiece which shows the 3rd example of the vacuum cleaner concerning the present invention. The principal part sectional drawing of the sliding member which shows the 3rd Example of the vacuum cleaner which concerns on this invention. FIG. 9 is an external perspective view of a universal connecting portion showing a third embodiment of the vacuum cleaner according to the present invention. The top view of the universal connection part which shows the 3rd Example of the vacuum cleaner concerning the present invention. The assembly process figure of the universal connection part which shows the 3rd Example of the vacuum cleaner concerning the present invention. Explanatory drawing of the application example of other free connection parts which shows the 3rd Example of the vacuum cleaner which concerns on this invention. FIG. 9 is an operation principle diagram of a mouthpiece showing a third embodiment of the vacuum cleaner according to the present invention. FIG. 7 is a use state diagram showing a third embodiment of the vacuum cleaner according to the present invention. FIG. 7 is a use state diagram showing a third embodiment of the vacuum cleaner according to the present invention. FIG. 7 is a use state diagram showing a third embodiment of the vacuum cleaner according to the present invention. FIG. 7 is a use state diagram showing a third embodiment of the vacuum cleaner according to the present invention. The external appearance perspective view which shows the 4th Example of the vacuum cleaner which concerns on this invention. The component block diagram which shows the 4th Example of the vacuum cleaner which concerns on this invention. FIG. 9 is a structural diagram of a universal hinge showing a fourth embodiment of the vacuum cleaner according to the present invention. The external appearance bottom view which shows the 4th Example of the vacuum cleaner which concerns on this invention. The schematic sectional drawing which shows the 4th Example of the vacuum cleaner which concerns on this invention. FIG. 7 is an explanatory view of a use state showing a fourth embodiment of the vacuum cleaner according to the present invention. The schematic perspective view showing the 5th example of the vacuum cleaner concerning the present invention. The schematic sectional drawing which shows the 5th Example of the vacuum cleaner which concerns on this invention. FIG. 13 is a conceptual diagram showing a structure of a sixth embodiment of the vacuum cleaner according to the present invention. The structure conceptual diagram which shows the 7th Example of the vacuum cleaner which concerns on this invention. FIG. 13 is an enlarged view of a universal connecting hose showing a seventh embodiment of the vacuum cleaner according to the present invention. It is a structure conceptual diagram of another application example showing the seventh embodiment of the vacuum cleaner according to the present invention. The schematic external appearance perspective view of the hand handle which shows the other Example of the vacuum cleaner which concerns on this invention. The schematic external appearance perspective view of the hand handle which shows the other example of the vacuum cleaner which concerns on this invention. The external view which shows the other Example of the vacuum cleaner which concerns on this invention. The external view which shows the other Example of the vacuum cleaner which concerns on this invention. The component block diagram of the suction body which shows one Example of the vacuum cleaner which concerns on this invention.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 ... Vacuum cleaner, 100 ... Vacuum cleaner main body, 200 ... Suction hose, 300 ... Hand handle, 301 ... Handle part, 400 ... Connection pipe, 500, 550 ... Suction body, 1000 ... Suction body, 1001 ... Lower case, 1002 front cover, 1003 rear cover, 1005 suction chamber, 1006 mounting section, 1007 ventilation path, 1010 suction port, 1011 rotating brush, 1012 turbine, 1016 ventilation hole, 1017 viewing window Reference numeral 1020: Thick portion 1021 Groove portion 1022 Opening / closing lever 1023 Handle recess portion 1031 Front upper cover mounting portion 1033 Bumper portion 1037 Mounting rib 1100 Sliding member 1101 Brush 1101 Reference numeral 1102: brush stand 1103: roller, 1200: wheel, 1201: front wheel, 1202: rear wheel, 120 ... Rear wheel, 1203a ... Rear wheel, 1210 ... Sliding member, 1211 ... Rotating shaft, 1212 ... Recess, 1213 ... C cut surface, 1214 ... Brush, 1215 ... Brush table, 1261 ... Front wheel, 1262 ... Rear wheel , 1263: rearmost wheel, 1264: hammering wheel, 1300: guide means, 1302: flat surface, 1310: bunch of brushes, 1311: brush row, 1312: flow path, 1313: brush table, 1314: brush, 1315 ... Channel 1500, universal connection part, 1501 connection hose, 1502 universal hinge, 1502a lower arm part, 1502b upper arm part, 1503 rotary shaft, 1504 rotary shaft, 1505 rotary shaft hole, 1506 pin, 1507: connecting portion, 1510, 1511, 1512, 1513: notch, 1516: lock mechanism, 1517: convex portion, 1518 Recess, 1519 fitting hole, 1520 convex rib, 1521 connecting part, 1530 free connecting part, 1531 lower arm part, 1532 upper arm part, 1533 first rotating shaft, 1534 lock ring, 1535 ... 2nd rotating shaft portion, 1537 shutter mechanism, 1553 locking mechanism B1, lower arm tube axis, B2 upper arm tube axis, Q center axis of the connection pipe, P1 twist rotation of the handle at hand, P2: rotation of the mouthpiece, X: rotation in the left-right direction, Y: rotation in the height direction, V1: movement direction in the left-right direction of the suction body, V2: movement direction in the front-back direction of the suction body.

Claims (1)

A vacuum cleaner main 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, and the other end of the suction hose being mounted to the suction hose; A hand handle communicating with the blower, a connection pipe attached to the hand handle and communicating with the suction hose, and a suction body attached to the connection pipe and communicating with the connection pipe, wherein the suction body includes dust. A suction main body having a suction port for sucking air, a rotatable connection part for rotatably connecting the suction main body to the connection pipe, and a free connection part for communicating a dust path of the suction main body with the connection pipe; A first rotation axis in the X direction for rotating the suction body in parallel with the floor surface, and a second rotation axis in the Y axis direction perpendicular to the X direction, and the suction body is twisted by the hand handle. On the floor Vacuum cleaner, characterized in that rotating Te.

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