JPH11155786A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner which can rotate the main body of sucking port on the surface of a floor over a wide range through the twisting operation of a handle at hand and is suitable for cleaning a low gap. SOLUTION: This vacuum cleaner is composed of the main body 100 of the cleaner, a suction hose 200, the handle 300 at hand, a sucking pipe 400 and a sucking port body 500, the sucking port body 500 is provided with a connecting part 1500 for connecting the sucking port body 500 and the sucking pipe 400 behind the sucking port body 500, and the connecting part 1500 is composed of a rotor 1501 attached to the back of the sucking port body 500 so as to be rotated and a joint 502 which can change an elevation angle corresponding to the rotor 1501.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

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

[0003] The structure has a first joint attached to be able to swing up and down with both sides in the longitudinal direction of the suction main body as rotation axes, and a bent tubular form, and one end of the first joint is attached to the first joint. It comprises a second joint which is mounted so as to be rotatable in the axial direction, and which is fixedly mounted 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 Japanese Unexamined Patent Publication No. 5-245.
No. 073.

[0005]

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

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

For example, when cleaning a wall, it is efficient to move the longitudinal direction of the mouthpiece along the wall surface.
However, in the structure of the conventional mouthpiece, even if the hand handle is rotated by 90 degrees, the rotation angle of the joint can be rotated only about 45 degrees.
I had to do it with both hands. Further, when cleaning a low gap such as under a sofa, the bent joint is stuck and cleaning efficiency as expected cannot be achieved.

It is an object of the present invention to provide a vacuum cleaner which can rotate the suction main body over a wide range with respect to the floor surface by twisting the hand handle, and which can easily clean a small gap.

[0009]

As a means for achieving the above object, a vacuum cleaner according to the present invention comprises a vacuum cleaner body provided with a blower for sucking dust, and one end attached to the vacuum cleaner body. A flexible suction hose connected to the blower, a handle attached to the other end of the suction hose and connected to the blower, and a suction tube attached to the handle and connected to the suction hose. A suction body attached to the suction pipe and communicating with the suction pipe, wherein dust is sucked into the vacuum cleaner body via the suction pipe, wherein the suction body is the suction body. A connection part for connecting the suction pipe to the suction body, the connection part being provided with a rotating body rotatably attached to the back surface of the suction body, and an elevation angle with respect to the rotation body being changeable. Composed of a such joint

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

First Embodiment FIGS. 1 to 9 show a first embodiment according to the present invention. FIG. 1 is an external perspective view of an electric vacuum cleaner, FIG. 2 is a rear external perspective view of a mouthpiece, and FIG. Is a plan view of the mouthpiece, FIG. 4 is a front view of the mouthpiece, FIG. 5 is a right side view of the mouthpiece, FIG. 6 is a bottom view of the mouthpiece,
7 is a central longitudinal sectional view of the mouthpiece, FIG. 8 is an external perspective view of the connecting portion, and FIG. 9 is an exploded view of the connecting portion.

First, an electric vacuum cleaner according to the present embodiment will be described with reference to FIG. Reference numeral 1 generally indicates the entire vacuum cleaner, and a mechanism (not shown) for sucking dust, for example, a vacuum cleaner body 100 having a blower, and one end attached to the vacuum cleaner 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 hand handle 30
The suction pipe 400 is attached to the suction pipe 200 and communicates with the suction hose 200. The suction pipe 500 is attached to the suction pipe 400 and communicates with the suction pipe 400.

The main body 100 of the vacuum cleaner includes a dust collecting chamber having a disposable dust bag therein, and a pair of large wheels 101.
And one free wheel 102 can be moved via the suction hose 200. In addition, the operation control of the vacuum cleaner main body 100 is performed by receiving an operation signal transmitted 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.

Further, an electric conductive line is provided from the hand handle 300 along the suction hose 200, and a signal for controlling the operation of the electric vacuum cleaner through the conductive line, for example, a motor of the blower is provided. A signal for controlling the rotation speed may be transmitted to control the operation of the vacuum cleaner.

The suction hose 200 has a function as a transfer passage for transferring dust to the vacuum cleaner main body 100 and a function as a moving pulling unit for moving the vacuum cleaner main body 100.

The handle 300 is attached to the suction hose 2.
00 and the suction pipe 400, the operation control of the vacuum cleaner main body 100 and the vacuum cleaner main body 1
00 and a function of operating the movement of the mouthpiece 500. The hand handle 300
Is detachably connected to the suction hose 200 and is also detachably attached to the suction pipe 400, thereby connecting the suction hose 200 and the suction pipe 400 to form a dust conveyance path. . Further, the hand handle 300 is provided at the upper end of the suction tube 400 in the longitudinal direction, that is, on the extension of the center axis B2 of the suction tube 400, with the center axis B2 at 90 degrees or more and 160 degrees or less, preferably 100 degrees to 120 degrees. It has an angle around α (α in the figure). The handle portion 301 is provided at a position where the longitudinal axis B1 substantially coincides with the connection direction between the suction hose 200 and the suction tube 400. With this handle portion 301, the vacuum cleaner main body 100 can be moved via the suction hose 200.
The movement of the mouthpiece 500 can be operated. In particular, according to the handle portion 301, the twisting operation, that is, the rotation P1 about the central axis B2 can be easily performed. During the twisting operation, the handle 30
1 is provided above, so that the suction hose 2 provided below is provided.
00 does not hinder the twisting operation. As a result, the mouthpiece 500 is placed on the floor (cleaning surface) 9
It can be rotated 0 degrees or more (P2 in the figure). In addition, the rotation of the mouthpiece 500 can be relatively easily performed by the shape of the handle described above. The reason for this is that when the handle 301 is twisted by giving an angle (α in the drawing) to the handle 301, a rotational moment is generated.

An operation unit 30 for operating the operation of the vacuum cleaner main body 100 is provided near the handle unit 301.
2 are provided. The operation unit 302 is provided with an infrared transmitting unit 303, which transmits an operation signal from the infrared transmitting unit 303 to the infrared receiving unit 103 provided in the vacuum cleaner main body 100, and supplies power to the vacuum cleaner main body 100. ON, OFF and various controls can be performed. Since the handle 300 is provided with a power source such as a battery (not shown), it is not necessary to perform electric wiring on the suction hose 200. Also, the infrared transmitter 30
Since the 3 is provided in two places, 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 the malfunction can be reduced.

The suction tube 400 is provided with the handle 3
00 and the mouthpiece 500 are communicated with each other, and the hand handle 300 and the mouthpiece 500 are fixed at a predetermined position, so that the hand handle 300 moves (moves and rotates).
Is transmitted so as to cause the movement (movement or rotation) of the mouthpiece 500. In this embodiment, by combining two pipes 401 and 402 having different sizes, the suction pipe 400 is configured to be expandable and contractable so as to be fixed at a predetermined length.
The mouthpiece 500 is detachably attached to the other end.

The suction body 500 has a suction body 1000 having a suction opening 1006 (see FIG. 6) on the bottom surface for sucking dust, and the suction body 1000 is connected to the suction pipe 4.
00 and the suction body 1000 against the movement of the hand handle 300 transmitted through the suction tube 400.
And a connection portion 1500 that communicates with the suction pipe 400 so as to always operate such that the bottom surface thereof is in contact with the floor surface (cleaning surface), and to guide the air flow containing dust sucked from the suction main body 1000 to the suction pipe 400.

The connection part 1500 is connected to the suction main body 10.
The rotating body 1501 is provided at the rear of the rotating body 150 and is rotatably mounted on the mounting surface of the mouthpiece 500. The joint 1502 can change the elevation angle with respect to the rotating body 1501. In the present embodiment, the elevation angle is represented by Y in the figure.
Indicated by With this configuration, the vacuum cleaner 1 according to the present embodiment has a function of transmitting the rotation P1 of the twisting operation of the hand handle 300 as P2 of the mouthpiece body 1000 as it is.

That is, the rotating body 1501 of this embodiment
Is mounted on a substantially vertical mounting surface formed on the back surface of the suction main body 1000, and a rotating surface formed between the rotating body 1501 and the mounting surface around a rotation axis Q1 (see FIG. 7). F (see FIG. 7). By the action of the rotation surface F, the mouthpiece 500 rotates in the Z direction about the rotation axis Q1 so as to swing both wings of the mouthpiece 1000.

On the other hand, the joint 1502 is
It is attached to the other end of the motor 501 and rotates about the rotation axis Q2 (see FIG. 7) in the Y direction, which is an angle in elevation (elevation angle). Here, since the bottom surface of the mouthpiece 500 contacts the cleaning surface, the rotation in the Z direction is restricted. However, in the present embodiment, since one end of the rotating body 1501 is provided with the rotating shaft Q2 operating in the Y direction, the hand handle 3
The rotation P1 of the 00 twisting operation is based on the rotation axes Q1 and Q2.
Is converted into two rotations centered on the rotation of the mouthpiece 500, and the rotation is performed to swing behind the mouthpiece 500 to be converted into the rotation P2 of the mouthpiece 500. Accordingly, in the present embodiment, the twisting operation P1 of the hand handle 300 is performed by the rotation P
2 can be transmitted.

In this embodiment, the suction main body 10
The rotation in the Z direction of 00 is at least 90 degrees to the right and 90 degrees to the left in the straight-ahead state in which the mouthpiece 500 is directly opposed and the hand handle 300 is positioned at the center thereof.
That is, it can be performed in a range of 180 degrees. Also,
The rotation in the Y direction allows the suction tube 400 to be rotatable from a horizontal position to a vertical position, that is, at least 90 degrees.

As described above, a major feature of the vacuum cleaner 1 according to the present embodiment is that the operation of the suction body 500 via the hand handle 300, for example, the rotation P1 of the twisting operation of the hand handle 300, is directly applied to the suction body 500. The user of the vacuum cleaner 1 can transmit the rotation as a rotation P2.
The operation performed at 00 can be smoothly performed as the operation of the mouthpiece 500. In particular, in the mouthpiece 500 according to this embodiment, since the connecting portion 1500 is disposed behind the mouthpiece body 1000, the overall height of the mouthpiece 500 is reduced, so that the bottom surface of the mouthpiece body 1000 is kept in close contact with the cleaning surface. For example, it can be inserted into a low space such as under a bed. Moreover, even when the mouthpiece 500 is sunk under the bed, the mouthpiece 500 is excellent in straightness without being shaken left and right. Hereinafter, the mouthpiece 500 which is one of the major features of the vacuum cleaner according to the present embodiment will be described in detail.

Next, the external structure of the mouthpiece 500 will be described with reference to FIGS. 2 to 5, as described above, the mouthpiece 500
Is composed of a mouthpiece main body 1000 and a connecting portion 1500 arranged at the center behind the mouthpiece main body 1000. The mouthpiece 1000 is formed in the shape of a thin horizontally long box whose upper surface is inclined forward. The mouthpiece 10
Reference numeral 00 denotes an upper cover 1001 formed of a resin material that covers the upper portion of the suction main body 1000, and a lower cover 1002 formed of a resin material that covers the lower portion of the suction main body 1000. The upper cover 1001 and the lower cover 1002
Are fitted on the peripheral side of the mouthpiece main body 1000, and a convex bumper 1003 is formed at the fitting portion. In this embodiment, as shown in FIG. 7, the bumper 1003 is integrally formed with the upper cover 1001, and the bumper 1003
The lower cover 1002 is assembled so as to fit into the lower cover, and is attached with screws (not shown). The bumper 1003 is formed of a separate material, for example, a soft material such as rubber or a resilient resin material, and is assembled so as to be sandwiched between the upper cover 1001 and the lower cover 1002 from above and below by screws. You may stop it.

In addition, the suction main body 1000 has four shapes including the bumper 1003 in the top shape shown in FIG.
The mouth body 100 is formed to have a large roundness at the corner.
When the rotating surface of the cleaning surface is 0, the corner is hit so that the furniture is not damaged.

Further, a convex connecting portion mounting portion 1004 which is protruded in a circular shape when viewed from the rear is formed on the peripheral side surface behind the mouthpiece body 1000, that is, the center of the rear surface, and the circular surface of the connecting portion mounting portion 1004 is formed. Are formed so as to be substantially perpendicular to the floor surface. Then, the connecting portion mounting portion 100
4, a connection portion 1500 extending rearward to the circular surface.
Are rotatably mounted. Here, in the present embodiment, the connecting portion of the upper cover 1001 and the lower cover 1002 is provided at the center of the circular connecting portion 1500.
When assembling the 001 and the lower case 1002, the connecting portion 1500 is sandwiched therebetween.

In this embodiment, the connection portion 150
0, the diameter of the connection portion 1500 is formed large so as to be able to operate firmly in various movements while securing an internal ventilation path. Accordingly, the connection portion mounting portion 100
The diameter of the circle 4 is also large. On the other hand, the suction body 500 of the present embodiment is designed on the assumption of a low-cost model that does not have a rotating brush or the like inside.
0 is made thin to make it as compact as possible. In the present embodiment, the thin connection body 15 is
00 is formed at the center of the upper surface of the suction main body 1000 so as to gradually protrude from the front to the rear connecting portion mounting portion 1004 and to form a continuous protruding portion 1005. A connection portion 1500 having a sufficient opening with good suction efficiency is attached.

On the other hand, the connection part 1500 is formed in a columnar basic shape, one of the circular parts is rotatably mounted on the connection part mounting part 1004, and the other is semicircular when viewed from the side. It is formed as follows. At one end of the connection portion 1500 having the semicircular appearance, a joint 1502 rotatably attached by a rotating shaft attached to the center position of the semicircle is provided. This detailed structure will be described with reference to FIG.

In FIG. 6, a horizontally long rectangular suction opening 100 for sucking dust is provided at the center of the suction main body 1000.
6, flexible convex brushes 1007 are arranged in a line in front of the suction opening 1006, and further guide the air flow containing dust to the suction opening 1006 in front thereof. A plurality of convex guide projections 1008 for rectifying the airflow. On the other hand, behind the mouth opening 1006, the mouth opening 1006
The dust that could not be completely absorbed by the
6 is provided with a convex keeper 1009. Then, the suction opening 1006 is appropriately floated from the cleaning surface, and the convex brush 1007 or the keeper 100
9 are provided near the four corners of the suction main body 1000 while improving the efficiency of the nozzle 9 and ensuring the traveling function of the suction body 500. This makes it possible to smoothly move the mouthpiece 500 in the front-rear direction.
In 007, the cleaning surface is brushed, so that the soaring dust can be efficiently sucked. In addition, since the wheel 1200 is formed of a sliding resin material having appropriate hardness, the rotation of the mouthpiece 500 can be smoothly performed. When the wheel 1200 is shaped like a drum with a bulged center or a brush or a carpet material is attached to the wheel running surface, the rotation performance can be further improved.

In this embodiment, a plurality of concave portions 1010 are formed by cutting out a part of the bumper 1003 formed in a convex shape in the longitudinal direction. Thus, when the tip of the mouthpiece 500 (the front part of the bumper 1003) is pressed against the wall, the recess 10 formed in the bumper 1003 is formed.
Air can be sucked in from 10. The sucked air is sprayed in a spot manner, and the flow velocity is increased by the plurality of guide protrusions 1008, so that a portion of the cleaning surface that the brush 1007 does not reach, such as a cleaning surface near the wall, is licked by a fast spot-like air current. Dust can be sucked in efficiently. Further, the sucked air is rectified by the guide protrusion 1008, and is sucked.
6 is sucked.

As described above, the suction main body 10 according to this embodiment is
According to No. 00, the operability of the mouthpiece main body 1000 can be improved by the wheels 1200 made of a sliding member, and further, the guide projection 1008, the brush 1007, and the keeper 10
Since 09 is provided, the cleaning efficiency of the floor surface (cleaning surface) can be improved. Further, even when the mouth main body 1000 according to the present embodiment is rotated, since the wheel 1200 is formed by the sliding member, the mouth main body 1000 is rotated.
The operability of is not reduced.

Next, in FIG. 7 to FIG.
Will be described. In the drawing, the mouthpiece 500 according to this embodiment includes rotation axes Q1 and Q2, and rotation of the mouthpiece body 1000 in the Z direction is performed along Q1.
The rotation of the elevation (elevation) angle Y is performed along the rotation axis Q2.

The rotating body 1501 and the joint 1502
Is provided with a ventilation opening 1503 communicating with the suction opening 1006 of the suction main body 1000, thereby forming a dust passage communicating from the suction opening 1006 to the suction pipe mounting portion 1512. The rotating body 1501 has a substantially cylindrical shape, and has a circular first hinge receiving portion 1504 formed at one end of the rotating body 1501 in the connecting portion mounting portion 1004.
A first hinge projection 1505 that rotatably fits with the first hinge projection 1505 is formed, and a second rotation hinge receiving portion 1506 that allows a joint 1502 to be rotatable by being provided at the other end is formed. The first hinge projection 1505 is connected to the first hinge receiving portion 150.
4 together with a first rotation hinge 1507 that rotates about the rotation axis Q1.
06 constitutes a second hinge hinge 1509 that rotates about the rotation axis Q2 together with a second hinge projection 1508 formed at one end of the joint 1502.

The first hinge convex portion 1505 is formed by forming a ring groove 1511 around a convex ring portion 1510, and the first hinge receiving portion 1504 is fitted into the ring groove 1511 to form the first hinge convex portion 1505. The first hinge 1507 can be rotated. The first hinge portion 1507 has a rotation surface F formed on a first hinge projection 1505 of the rotating body 1501 and a mounting surface of the first hinge receiving portion 1504 of the connection portion mounting portion 1004. The rotating body 1501 rotates on the rotating surface F.

On the other hand, the second hinge recess 1506 is
A horizontal cylindrical convex second hinge projection 1508 formed at one end of the joint 1502 is provided inside. First, the joint 1502 will be described first for convenience of explanation.

The joint 1502 includes a second hinge projection 1508 having a shape of a laterally disposed cylinder, and a pipe-shaped suction pipe attachment 151 attached to the peripheral side surface of one of the cylinders.
And 2. The second hinge projection 1508
The opening 1513 is formed on the peripheral side opposite to the peripheral side surface on which the suction tube mounting part 1512 is mounted, and the rotating projections 1514 (see FIG. 9) are formed on both sides of the cylindrical body.

Now, the second hinge recess 1506 is
It is formed so as to be semicircular when viewed from the side so as to include the cylindrical second hinge projection 1508 in a lateral arrangement,
A drive groove 1515 that allows the suction pipe mounting portion 1512 of the joint 1502 to move in the Y direction along the semicircular peripheral surface is provided on the rear side. Also, on both sides of the inner wall surface of the second hinge recess 1506, a rotation shaft mounting recess 1516 is provided.
The rotation projection 1514 of the second hinge projection 1508 is inserted and fitted into the rotation shaft mounting recess 1516 by using resin elasticity, and the rotation is formed at the center of the fitting portion. The joint 1502 is rotatably attached to the rotating body 1501 around the axis Q2.

In the present embodiment, the joint 15
02 is operable from a horizontal posture to a vertical posture. Therefore, the opening 1513 formed in the second hinge projection 1508 is reduced in order to enable the two postures to operate and to prevent air from leaking through the ventilation passage between the rotating body 1501 and the joint 1502. Therefore, in this embodiment, a shutter is provided to increase the size (height dimension) of the opening 1513 and close the gap in which the joint 1502 opens upward in a horizontal posture. The shutter 1517 closes the gap between the second hinge convex portion 1508 and the second hinge concave portion 1506 when the joint 1502 is in the horizontal position, and is housed in the second hinge concave portion 1506 when the joint 1502 is in the vertical position. Is done. In this structure, as shown in FIG. 9, a rotary bearing 1518 is provided on both sides of a shutter 1517, and the rotary bearing 1518 is provided.
A rotation shaft hole 1519 that is rotatably fitted to the rotation protrusion 1514 is provided at the tip of the shaft. Thereby, the shutter 151
7 can slide on the same rotation axis Q2 as the second hinge projection 1508, so that the second hinge projection 1508 can be slid.
The shutter 1517 can be moved in and out in accordance with the movement of.

In the present embodiment, by providing the shutter 1517, when the elevation angle (elevation angle) Y of the joint 1502 is reduced (horizontal posture), leakage of the airflow containing dust is prevented, and The rotating body 1501 and the joint 1532 can communicate with each other while maintaining an opening area sufficient to guide the airflow containing dust to the dust collection chamber provided in the cleaner main body 100.

In this embodiment, 1 is used as the shutter mechanism.
Although the number of shutters 1517 is used, the invention is not limited to this, and bellows, a flexible soft material, and a plurality of shutters may be used.

Second Embodiment FIGS. 10 to 12 show a vacuum cleaner according to a second embodiment of the present invention. This embodiment shows another embodiment of the connecting portion employed in the mouthpiece of the first embodiment. 10 is an external perspective view of the connecting portion, FIG. 11 is an exploded perspective view of the connecting portion, and FIG. 12 is a cross-sectional view of the connecting portion.

The connection section 1600 according to this embodiment can be replaced with the connection section 1500 described in the second embodiment. Therefore, in the following description and drawings, the suction main body 1000, the vacuum cleaner main body 1, and the handle 300 other than the connection portion 1500 are common to the first embodiment, and the description is omitted.

In the figure, a connecting portion 1 according to this embodiment is shown.
Reference numeral 600 denotes a rotating body 1601 provided behind the suction body 1000 and rotatably mounted on the mounting surface of the suction body 500, and a joint 1602 capable of changing an elevation angle with respect to the rotating body 1601. You. In the vacuum cleaner 1 provided with the connection portion 1600 of the present embodiment, similarly to the first embodiment, the function of transmitting the rotation P1 of the twisting operation of the hand handle 300 as the rotation P2 of the suction main body 1000 as it is is provided. You can have.

The mouthpiece 500 provided with the connecting portion 1600 of this embodiment is also provided with a rotating shaft Q1 as shown in FIG.
Q2, and the suction body 10 is rotated by the rotation axis Q1.
00 can be rotated in the Z direction, and the mouthpiece 1000 can be rotated in the Y direction, which is an angle (elevation angle) in the elevation direction, by the rotation axis Q2.

The rotating body 1601 and the joint 1602
Is provided with a ventilation opening 1503 communicating with the suction opening 1006 of the suction main body 1000, thereby forming a dust passage communicating from the suction opening 1006 to the suction pipe mounting portion 1512. The rotating body 1601 has a substantially cylindrical shape, and has a circular first hinge receiving portion 1504 formed on the connecting portion attaching portion 1004 at one end thereof.
A first hinge projection 1505 that rotatably fits with the first hinge projection 1505 is formed, and a second rotation hinge receiving portion 1606 that allows a joint 1602 to be rotatable with the other end inside is formed. The first hinge projection 1505 is connected to the first hinge receiving portion 150.
4 together with a first rotary hinge 1507 that rotates about a rotary axis Q1.
06 constitutes a second hinge hinge 1609 that rotates about the rotation axis Q2 together with a second hinge projection 1608 formed at one end of the joint 1602.

The first hinge convex portion 1505 is formed by forming a ring groove 1511 around a convex ring portion 1510, and the first hinge receiving portion 1504 is fitted into the ring groove 1511 to form a first hinge convex portion 1505. The first hinge 1507 can be rotated. The first hinge portion 1507 has a rotation surface F formed on a first hinge projection 1505 of the rotating body 1501 and a mounting surface of the first hinge receiving portion 1504 of the connection portion mounting portion 1004. The rotating body 1501 rotates on the rotating surface F.

On the other hand, the second hinge recess 1606 is
The rotating bearing portion 1620 serving as the rotating shaft Q2 is
The lower inner wall surface (lower flow passage) of the second hinge recess 1606 is formed in an arc shape centered on the rotation axis Q2. For this reason, the outer shape of the rear part of the rotating body 1501 is such that an opening 1621 is formed at the rear of the upper surface and the lower part is formed in a bowl shape. Here, the rotation axis Q2 is provided at the front end of the opening 1621.

The joint 1602 has a cylindrical shape, and an opening 1622 at one end thereof has a second hinge projection 1.
608 is provided, and the suction tube mounting portion 1512 is formed in the opening 1623 which is the other end. The second hinge projection 1608 is provided with a rotation shaft 1624 attached to the rotation receiving portion 1620 at the upper portion, and the rotation shaft portion 1 at the lower portion.
624 is a circular arc projecting downward. The second hinge projection 1608 is accommodated in the second hinge recess 1606 by attaching the rotation shaft 1624 to the rotation receiving portion 1620 so as to be rotatable using the elasticity of the resin. At this time, the second hinge protrusion 16
08 is formed slightly smaller than the inner wall shape of the second hinge recess 1606 so as to prevent the air flow from leaking from the gap between the two portions. Thereby, the second
The hinge convex portion 1608 is housed in the second hinge concave portion 1606 so as to be able to protrude and retract about the rotation axis Q2. Here, in this embodiment, the second hinge projection 16
08 is stored in the second hinge recess 1606 and the angle S1 of the lower arc-shaped sliding surface 1625 overlapping each other.
Is at least 90 degrees or more. This allows the joint 1602 to rotate from a horizontal state to a position where the joint 1602 rotates in the Y direction to a vertical position, and within this operation range, the second hinge projection 1608 and the second hinge
Air leakage can be prevented from between the hinge recesses 1606.

As described above, according to the present embodiment, the structure of the second rotating hinge portion 1609 is replaced by the rotating shaft Q
Since the second hinge convex portion 1608 can be made to protrude and retract into the second hinge concave portion 1606 around the center 2, it is necessary to provide a new shutter mechanism while having the same operation and effect as in the first embodiment. There is no. Further, according to the structure of the second rotating hinge portion 1609, the size of the opening portion 1622 can always be the same, so that clogging of dust can be reduced and noise can be reduced. .

As described above, in the electric vacuum cleaner according to the present embodiment, when the user holds the handle in a standing position and cleans a carpet or a fold, the longitudinal direction of the handle is horizontally long in the forward and backward directions. By moving the suction body, the same cleaning as a normal vacuum cleaner can be performed. Further, by twisting the longitudinal direction of the handle from this position, the mouthpiece can be rotated. In this embodiment, the mouthpiece can be rotated left and right by 90 degrees by twisting the handle at right and left by 90 degrees. For example, the mouthpiece can be rotated by 90 degrees to perform cleaning while moving along the longitudinal direction. At this time, the user can perform cleaning in the same manner as in a normal cleaning posture. Further, the traveling direction of the mouthpiece can be changed by turning the hand handle so as to turn the handle of the automobile.

In addition, according to the present embodiment, when the handle at the hand is set at a low position and cleaning is performed under a bed or the like, the height of the mouthpiece is low, so that a portion having a low height can be penetrated. . In addition, since the mouthpiece does not move left and right when the handle is low, cleaning performance is good.

[0053]

According to the present invention, the mouthpiece body can be rotated by twisting the handle at hand, so that the user of the vacuum cleaner can perform cleaning in a comfortable posture and clean low gaps. Thus, the operability of the vacuum cleaner can be improved.

[Brief description of the drawings]

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

FIG. 2 is a perspective view of a mouthpiece showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 3 is a plan view of a mouthpiece showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 4 is a front view of the mouthpiece showing the embodiment of the vacuum cleaner according to the present invention.

FIG. 5 is a right side view of the mouthpiece showing the embodiment of the vacuum cleaner according to the present invention.

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

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

FIG. 8 is an external perspective view of a mouthpiece connecting portion showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 9 is an exploded perspective view of a mouthpiece connecting portion showing an embodiment of the vacuum cleaner according to the present invention.

FIG. 10 is an external perspective view of a mouthpiece connecting portion showing another embodiment of the vacuum cleaner according to the present invention.

FIG. 11 is an exploded perspective view of a mouthpiece connecting portion showing another embodiment of the vacuum cleaner according to the present invention.

FIG. 12 is a cross-sectional view of a mouthpiece connecting portion showing another embodiment of the vacuum cleaner according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vacuum cleaner, 100 ... Vacuum cleaner main body, 101 ... Large wheel, 102 ... Free wheel, 103 ... Infrared light receiving part, 20
0: suction hose, 300: handle at hand, 301: handle part, 302: operating part, 303: infrared transmitting part, 40
0: suction tube, 401, 402: tube, 500: mouthpiece,
1000: suction body, 1200: wheel, 1500: connection part, 1501: rotating body, 1502: joint, B1: longitudinal axis, B2: central axis, F: rotating surface, P1: twist of the handle, P2: suction port Rotation of the body, Q1, Q2: rotation axis, Z: rotation in the direction of swinging both sides of the mouthpiece, Y: rotation in the vertical direction.

Claims (1)

[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 main body and communicating with the blower, and the other end of the suction hose. A hand handle attached to the blower and connected to the blower; a suction pipe attached to the hand handle and connected to the suction hose; and a suction body attached to the suction pipe and connected to the connection pipe. In a vacuum cleaner in which dust is sucked into the main body of the vacuum cleaner through a suction pipe, the suction body includes a connection portion for connecting the suction body and the suction pipe at a rear side of the suction body; The vacuum cleaner is characterized in that the part comprises a rotating body rotatably attached to the back surface of the mouthpiece and a joint capable of changing an elevation angle with respect to the rotating body.