JPH10258005A - Electric vacuum cleaner and suction port part for electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable diversified movement of a suction port part without imposing an excessively forced attitude. SOLUTION: This electric vacuum cleaner is provided with the body thereof having a blower for sucking dust, an absorption port part 1 with a dust suction port 8, a handle part 103 to move the suction port 1 and a communication part (a suction hose, a connection pipe 10 and a link hose 7) for communication between the body of the electric vacuum cleaner and the suction port 1. A hinge part 4 is provided to be rotatably linked at least horizontally and vertically to the suction port part 1 and the handle part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can provide a good working posture by reducing the burden on the hands and arms, and can also perform straight running, move laterally and change directions smoothly. The present invention relates to a vacuum cleaner and a suction port for the vacuum cleaner.

[0002]

2. Description of the Related Art A conventional floor suction port is disclosed in
As shown in the publication of 9-211421,
There has been proposed a pipe in which a pipe forming an intake passage attached to a rear portion of a suction port main body is rotatably connected in a vertical direction. Japanese Patent Laid-Open Publication No. 2-84919 proposes a suction port for connecting a pipe forming an intake passage attached to an upper portion of a suction port main body so as to be rotatable in a horizontal direction.

[0003]

In the first prior art, the mouthpiece body and the pipe attached to the rear part of the mouthpiece body are attached rotatably in the vertical direction. Movement (angle) becomes good,
It can respond to the movement back and forth with respect to the traveling direction. But,
In this conventional example, when changing the direction of the mouth portion, for example, when the mouth portion tries to rotate against the wall surface, the mouth portion has to be lifted, so that a continuous cleaning operation is difficult.

On the other hand, in the second conventional example, since the mouthpiece body and the pipe attached to the upper center of the mouthpiece body are mounted so as to be rotatable in the horizontal direction, the pipe is not rotatable in the horizontal direction. The movement (angle) becomes good, and the direction change when the mouth portion rotates against the wall surface becomes easy. However, in this conventional example, in order to make the suction port and the floor closely adhere, the angle between the floor and the pipe must always be constant, so that an unreasonable posture is required,
The cleaning area was narrowed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a vacuum cleaner which can move a suction port in various ways without forcing an unreasonable posture. is there.

[0006]

According to a first aspect of the present invention, there is provided a vacuum cleaner having a blower for sucking in dust, a suction unit having a dust suction port, and
A handle part for moving the suction part, a communication part communicating the suction part with the vacuum cleaner main body, and a hinge for connecting the suction part to the handle part so as to be rotatable at least in a horizontal direction and a vertical direction. Parts are provided. According to another aspect of the present invention, a vacuum cleaner body having a blower for sucking dust, a suction port having a dust suction port, and a flexible suction hose having one end attached to and communicating with the cleaner body. A connection pipe attached to and communicated with the other end of the suction hose, a flexible connection hose communicating the connection pipe with the suction port, and connecting the connection pipe and the suction port at least vertically and horizontally. A hinge portion rotatably connected in a direction, and a handle portion provided on the connection pipe for moving the suction port through the connection pipe. According to another aspect of the invention, a vacuum cleaner main body including a blower for sucking dust, a suction unit including a dust suction port, a communication unit communicating the suction unit with the vacuum cleaner main body, and the cleaner main body A hinge portion for connecting the suction port so as to be rotatable at least in a horizontal direction and a vertical direction, and a handle portion attached to the cleaner body. Further, in another invention, a vacuum cleaner main body including a blower for sucking dust, a suction port including a dust suction port, a handle portion for moving the suction port, and the vacuum cleaner main body. While communicating with the suction port,
A communication hinge portion is provided for connecting the suction portion to the handle portion so as to be rotatable at least in a horizontal direction and a vertical direction. According to another aspect of the present invention, a vacuum cleaner body having a blower for sucking dust, a suction port having a dust suction port, and a flexible suction hose having one end attached to and communicating with the cleaner body. A connection pipe attached to the other end of the suction hose for communication, a communication hinge part for connecting the connection pipe to the suction port, and rotatably connecting at least horizontally and vertically, and the connection A handle provided on the pipe for moving the mouthpiece through the connecting pipe. Further, in another invention, a vacuum cleaner body provided with a blower for sucking dust, a suction port provided with a dust suction port, and communicating the vacuum cleaner body with the suction port, at least in a horizontal direction and a vertical direction. A communication hinge portion rotatably connected and a handle portion attached to the cleaner body are provided. According to another aspect of the present invention, a suction unit main body having a dust suction port, a communication unit communicating the vacuum cleaner main unit with a blower for sucking dust and the suction unit main body, and the suction unit main body are moved. And a hinge part for rotatably connecting at least the horizontal direction and the vertical direction. According to another aspect of the present invention, the suction port main body having a dust suction port, the vacuum cleaner main body including a blower for sucking dust and the suction port main body communicate with each other, and the suction port main body is moved. And a communication hinge portion for rotatably connecting at least the horizontal direction and the vertical direction to the handle portion. According to the first invention,
Dust is collected in the main body of the vacuum cleaner through a communication part from a suction part having a dust suction port, and the suction part is connected to the handle part via a hinge part so as to be rotatable at least in a horizontal direction and a vertical direction. Therefore, the mouthpiece can be freely moved in the horizontal and vertical directions via the handle. According to another aspect of the invention, dust is collected from the suction port to the main body of the vacuum cleaner through a connection hose, a connection pipe, and a suction hose, and the suction port is connected to the connection pipe via a hinge at least in a horizontal direction. Since it is connected so as to be rotatable in the vertical direction, the mouthpiece can be freely moved in the horizontal and vertical directions via the handle provided on the connection pipe. According to another aspect of the invention, dust is collected in the vacuum cleaner main body from the suction part through the communication part, and the suction part is rotatable at least in the horizontal direction and the vertical direction by the cleaner main body through the hinge part. The suction port can be freely moved in the horizontal and vertical directions via the handle provided on the cleaner body. According to another aspect of the invention, dust is collected from the suction port provided with the dust suction port to the vacuum cleaner main body via the communication hinge section, and the communication hinge section moves the suction section and the handle at least in the horizontal direction. Since the connection is made rotatably in the vertical direction, the mouthpiece can be freely moved in the horizontal and vertical directions via the handle. According to another aspect of the present invention, dust is collected from the suction port to the main body of the vacuum cleaner through a communication hinge, a connection pipe, and a suction hose, and the suction port is at least horizontally connected to the connection pipe through the communication hinge. Since it is connected rotatably in the direction perpendicular to the direction, the mouth part can be freely moved in the horizontal direction and the vertical direction via the handle part provided in the connection pipe. According to another aspect of the present invention, dust is collected from the suction port to the vacuum cleaner body via the communication hinge, and the suction port is at least horizontally and vertically provided to the cleaner main body via the communication hinge. Since it is rotatably connected, the mouthpiece can be freely moved in the horizontal direction and the vertical direction via the handle provided on the cleaner body. According to another aspect of the invention, dust is collected from the suction port main body to the vacuum cleaner main body via the communication section, and the suction port main body is rotatable at least in the horizontal direction and the vertical direction via the hinge portion. Because of the connection, the mouthpiece can be freely moved in the horizontal and vertical directions via the handle. According to another aspect of the invention, the suction body is collected from the suction main body to the vacuum cleaner main body via the communication hinge, and the communication hinge can rotate the suction main body and the handle at least in the horizontal direction and the vertical direction. Because it connects to
The mouth portion can be freely moved in the horizontal and vertical directions via the handle portion.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Note that the same members, parts, arrows, and the like are denoted by the same reference numerals, and redundant description will be omitted.

First Embodiment FIGS. 1 to 8 show a vacuum cleaner according to a first embodiment of the present invention. FIG. 1 is an external view of a suction port viewed from the back, and FIG. FIG. 3 is an external view of a main part of a hinge portion of the mouth portion, FIG. 4 is a cross-sectional view of a hinge portion of the mouth portion, FIG. 5 is an explanatory view of a free wheel of the mouth portion, and FIGS. FIG.

First, in FIG. 6, a vacuum cleaner 100 according to the present embodiment includes a vacuum cleaner main body 101 having an electric blower (not shown) and a flexible suction hose 102 communicating with the vacuum cleaner main body 101. And the suction hose 102
A handle 103 is attached to the tip of the handle 103, an extension pipe 10 connected to the handle 103, and a suction port 1 attached to the extension pipe 10 for cleaning the floor surface.
The mouth part 1 has a structure that is connected to the extension pipe 10 so as to be rotatable in the horizontal and vertical directions. Hereinafter, the suction port 1 will be described in detail with reference to FIGS.

First, referring to FIG. 1, a schematic structure of a mouthpiece 1 according to this embodiment will be described. In the figure, reference numeral 1 generally designates a suction port, and a main body case 2 having a dust suction port 8 (shown in FIG. 2), and a connection joint 3 for communicating the main body case 2 with the extension pipe 10. And the main body case 2
And a hinge 4 for connecting the connection joint 3 so as to be rotatable at least in the horizontal and vertical directions. The main body case 2 has a horizontally long and flat shape, and free wheels 9a and 9b are arranged on a surface on which a dust suction port 8 is provided and a floor surface. The connection joint 3 has a connection portion 5 attached to the extension pipe 10.
And a support member 6 for connecting the connecting portion 5 to the hinge portion 4 and a telescopic hose 7 for connecting the connecting portion 5 to the main body case 2. The hinge portion 4 is disposed at the center in the longitudinal direction of the step portion 13 formed behind the main body case 2, and a hinge female portion 17 attached to a wall surface of the step portion 13 and a key formed at the tip of the support 6. And a male hinge 18 of the mold. The key-shaped hinge male part 18 has a ball 21 at the tip.
Is formed, and the hinge portion 4 operates in the horizontal and vertical directions by holding the ball 21 with the hinge female portion 17.

Next, the detailed structure of the main body case 2 will be described with reference to FIG. The main body case 2 is composed of a synthetic resin upper case 11 covering the upper part and a synthetic resin lower case 12 covering the lower part. The main body case 2 has a wedge shape with a tapered front portion as viewed from the side, and a step portion 13 to which the hinge portion 4 is attached is formed above the rear portion. Turbine brush 1 inside body case 2
4 are arranged. This turbine brush 14 is rotated by the suction force of the vacuum cleaner main body 101 by a turbine blade (not shown) provided on the same axis, and brushes the floor surface exposed from the dust suction port 8 opened in the lower case 12 below. To improve the suction efficiency. The upper case 11 has an opening 15 to which one end of the telescopic hose 7 is detachably attached. Reference numeral 16 denotes a lock switch that allows the telescopic hose 7 to be attached and detached. On both front and rear sides of the lower case 12, a universal wheel 9a capable of freely changing a pair of large and small rotating shafts,
9b are arranged. Swivel wheel 9 mounted at the rear
b is a large wheel that mainly supports the load applied to the suction port 1, the extension pipe 10, and the user. On the other hand, the universal wheel 9a attached to the front mainly improves the rotation performance of the suction port 1.

The connecting portion 5 has one end 5a detachably attached to the extension tube 10 and the other end formed bifurcated. One end 5b of the bifurcated connecting portion 5 is detachably attached to the support body 6, and structurally connects and supports the extension tube 10 and the main body case 2. On the other hand, a telescopic hose 7 is integrally formed at one end 5c of the bifurcated connecting portion 5 to form a suction passage 22 that communicates the main body case 2 and the extension tube 10. As shown by an arrow A, dust on the floor is sucked through a dust suction port 8 provided on the bottom surface of the main body case 2, and is sucked into the vacuum cleaner main body 101 via the telescopic hose 7, the connecting portion 5, and the extension pipe 10. It is sucked. The connecting portion 5 and the support 6 are mounted on the pipe shaft of the extension tube 10 so that the user supporting the extension tube 10 via the handle portion can bring the mouthpiece 1 to the center position. Further, by forming the support 6 in a tapered shape, the operating range of the hinge portion 4 is ensured, and the large impression of the mouth portion 1 is reduced. Furthermore, since the telescopic hose 7 and the support 6 are arranged vertically (front and rear), the extension pipe 10, the connecting part 5, and the telescopic hose 7 are straight from the viewpoint of the user supporting the extension pipe 10 via the handle. Thus, since the support 6 can be hidden by the telescopic hose 7, the large impression of the mouthpiece 1 can be further reduced. At this time, since the support 6 has a tapered shape, the support 6 can be hidden even when the main body case 2 is slightly inclined. Reference numeral 19 denotes a lock switch that allows the one end 5a of the connecting portion 5 and the extension tube 10 to be connected to each other.

Next, the structure of the hinge portion 4 will be described in detail with reference to FIGS. 3, FIG. 3A is a top view of a main part of the hinge part 4, FIG. 4B is a side view of the main part of the hinge part 4, FIG. 4A is a cross-sectional view taken along the line AA 'of FIG. FIG. 14 is a sectional view taken along the line B-B '. The hinge male portion 18 has a ball 21 formed at the tip of the support 6 whose tip is bent at a right angle. On the other hand, the hinge female portion 17 is provided with a sphere support surface 23 for supporting the ball 21.
And a keyhole-shaped hinge receiving portion 25 composed of the ball supporting surface 23 and a connecting rod sliding surface 24 formed on the main body case 2 side continuously. 30 ° above spherical support surface 23
And a mortar-shaped inclined surface 26 that is open to the outside. The connecting rod sliding surface 24 is a vertically long hole whose longitudinal direction is formed in a posture orthogonal to the longitudinal direction of the main body case 2, the size thereof is the same as the width of the tip of the support 6, and the depth is The support 6 is formed so as to have a length substantially equal to the length from the bent portion to the ball. The movement of the hinge portion 4 having this structure will be described with reference to FIG. First, in FIG.
By the sliding of the ball 21 and the ball support surface 23, the horizontal rotation operation and the vertical swinging operation with the center of the ball 21 as the rotation axis can be performed independently or simultaneously. In the present embodiment, the inclined surface 26 above the spherical support surface 23 is set at 30 °.
, The support 6 can be moved by 30 ° from the vertical position in a total swing range of 60 °. Also,
As shown in FIG. B, the hinge 4 raises the support 6 in the direction of arrow B, that is, at a position orthogonal to the longitudinal direction of the main body case 2, thereby moving the connecting rod from the horizontal position to the vertical position. Up to 90 with the center of ball 21 as the axis of rotation
° can be rotated. At this time, the support 6 can rotate and swing freely from the horizontal position to 30 ° by the mortar-shaped inclined surface 26, but rotate from 30 ° to the vertical position by the connecting rod sliding surface 24. Is suppressed, and operation can be performed only in one direction of the arrow B direction.

In this embodiment, the rotation lock mechanism 27
Thereby, the operation of the hinge portion 4 can be fixed at the positions of 45 ° and 90 °. The rotation lock mechanism 27 includes a concave portion 27a disposed near the bending portion of the support 6 and ribs 27b and 27c provided on the connecting rod sliding surface 24 at 45 ° and 90 ° of the rotation orbit of the concave portion 27a. . The rib 27b,
Reference numeral 27c is provided at the tip of a leaf spring 27ba, 27ca formed by cutting out the connecting rod sliding surface 24. With this structure, the supporting member 6 can move the leaf spring 2 at the positions of 45 ° and 90 °.
The ribs 27b, 27c and the recess 27a are fitted by the elasticity of 7ba, 27ca, and the operation of the hinge 4 is fixed.
It should be noted that the strength of the hinge 4 is set such that the leaf springs 27ba and 27ba are released from being fixed when the handle 103 connected to the hinge 4 is slightly moved in the direction of arrow C.
The elasticity of ca and the size of the ribs 27b, 27c and the recess 27a are set.

Next, referring to FIG. 5, the structure of a pair of large and small free wheels 9a and 9b will be described. In the drawing, FIG.
a, 9b, and FIG. b shows a sectional view. The universal wheels 9a and 9b are rubber rollers 28 made of soft material.
A shaft 29 supporting a rubber roller 28, a support 30 supporting the shaft 29 from both sides, and a support 30
And a rotating shaft 32 that supports the base 31. And free wheels 9
A and 9b are attached to a circular concave portion 33 formed at a predetermined position of the lower case 12 so as to be rotatable through 360 ° via a rotating shaft portion. At this time, the depth of the concave portion 33 is set so that the rubber roller 28 is exposed from the lower case 12.
In addition, a plate 34 having good lubrication is provided on the surface where the lower case 12 contacts the support 30 and the base portion 31 so that the lower case 12 can rotate smoothly.

Next, the operation of the electric vacuum cleaner 100 according to this embodiment will be described with reference to FIG. First, in the vacuum cleaner 100 according to the present embodiment, the user holds the handle portion 1 in a standing posture.
By holding 03, the floor can be cleaned by operating the mouthpiece 1 through the extension pipe 10. On this occasion,
Since the vacuum cleaner main body 101 connected to the handle portion 103 via the hose 102 is provided with a pair of large wheels and one free wheel, cleaning can be performed while moving. In general, the average height of a Japanese woman is 157 cm. However, if this user naturally holds the handle portion 103 and tries to clean by moving the mouth portion 1 back and forth through the extension tube 10, If the vertical distance between the handle portion 103 and the floor surface is 78 cm or less, cleaning can be performed without placing a burden on hands and arms. The angle is set to the vertical range of the most operable operation range of the user, which is 45 °. If the angle is 45 ° or more, the hand or arm will be burdened conversely. Therefore, in the present embodiment, the length of the extension tube 10 is set so that the angle of the extension tube 10 is 45 °.

In this embodiment, since the hinge 4 is fixed by the rotation lock mechanism 27 when the angle of the extension pipe 10 is 45 °, a wide floor for moving the suction port 1 back and forth through the extension pipe 10 is used. The surface can be cleaned in a comfortable position. on the other hand,
When cleaning corners and corners of the floor surface or cleaning a narrow space such as a table, the hinge portion 4 is unlocked by slightly lowering the handle portion 103 in the direction of arrow C, and the main body case 2 is opened.
Can be freely rotated. That is, the handle 1
By slightly lowering 03, the rotation lock mechanism 27 that fixed the support 6 via the extension tube 10 connected to the handle portion 103 is released. Further, when the handle 103 is lowered in the direction of arrow C until the rotation angle of the support 6 becomes smaller than the inclination angle 30 ° of the mortar-shaped inclined surface 26, the support 6 suppresses the connection rod sliding surface 24 in one direction. Is released, the main body case 2 can be freely rotated at least in a range of 180 degrees in the horizontal direction as shown by an arrow E in FIG. For this reason, as shown in FIG.
The body case 2 can be moved while rotating along the wall surface only by lowering the body 3 lightly. At this time, the free wheels 9a and 9b provided on the lower surface of the main body case 2 change the axle direction according to the movement of the handle portion 103 regardless of the posture of the main body case 2, so that the movement of the main body case 2 is smooth. Can be In general, the user lowers the working posture in cleaning work below the table or in a narrow space. Therefore, the operation of lowering the handle portion 103 prior to the cleaning operation of the narrow space is an operation suitable for the smooth movement of the cleaning operation. Further, as shown in FIG. 7B, in the present embodiment, the provision of the mortar-shaped inclined surface 26 allows the handle portion 103 to be tilted within a range of 30 ° in the left-right direction.
Can also be tilted. For this reason, since the cleaning operation can be performed while twisting the handle portion 103 in a cleaning operation of a narrow space or the like, the holding posture of the handle portion 103 can be improved. As described above, according to the present embodiment, in the ordinary cleaning on the floor surface, it is possible to improve the cleaning performance of the corners and corners of the floor surface and the cleaning performance of a narrow space such as a table.

In FIG. 6, in this embodiment, 45
The locked state of the hinge part 4 can also be released by pulling up the handle part 103 in the direction of arrow D from the posture of °. In this state, since the support 6 is restricted to movement in only one direction by the connecting rod sliding surface 24, the handle 10
In the operation of moving the main body case 3 in the front-rear direction, the bottom surface of the main body case 2 can be kept in contact with the floor surface while the longitudinal direction of the main body case 2 is fixed to the left and right. Further, in this embodiment, the hinge portion 4 can be locked at a position where the rotation angle of the support 6 is made right by further pulling up the handle portion 103. For this reason, at the time of storage, since the main body case 2, the extension tube 10, and the handle portion 103 can be stabilized in a standing posture in which they are vertically arranged, the storage performance can be improved.

As shown in FIG. 8, the suction port 1 of this embodiment is connected to the support 6 via lock switches 16 and 20.
And a main body case 2 having a hinge portion 4 and a connecting portion 5 having a telescopic hose 7. For this reason, storage and packing after disassembly become easy.

As described above, according to this embodiment, when the extension pipe 10 which is used most frequently forms an angle of 45 ° with the floor, the straight running performance is excellent and a stable cleaning posture can be taken. On the other hand, the locked state is released and the handle 103
In a posture in which is set downward, the lateral movement and the direction change can be smoothly and easily moved, so that the cleaning operation can be continuously performed. Further, the handle 103
Can be obtained in a posture in which it is stored above the main body case 2.

[Application Example of First Embodiment] FIGS. 9 to 11 show application examples of the first embodiment, and FIG. 9 is a sectional view of another application example of the hinge portion. 10 is a plan view and a sectional view of another application example of the hinge portion, and FIG. 11 is a sectional view of another application example of the hinge portion.

In FIG. 9, in the above-described embodiment, a mortar-shaped inclined surface 26 opened at 30 ° is provided above the sphere supporting surface 23. However, the hinge portion 35 according to this embodiment is
The connecting rod sliding surface 24 is further formed continuously above the sphere supporting surface 23 by eliminating the inclination angle. According to this embodiment, the swinging motion of the support 6 in the vertical direction described with reference to FIG.
4 to be suppressed. Therefore, the support 6 can only rotate in the horizontal state, and can move in one direction in the direction of arrow B shown in FIG. 4 from the horizontal state to the vertical state. In FIG. 10, in the hinge portion 4 shown in FIGS. 3 and 4, when the support body 6 is pulled up while the main body case 2 is rotated, the bending portion of the support body 6 may hit the inclined surface 26 and be pulled up by 30 ° or more. Although not possible, the hinge portion 36 according to this embodiment is such that the inclined surface 26 on the side of the connecting rod sliding surface 24 is gently connected to the connecting rod sliding surface 24. According to the hinge portion 36 of this embodiment, the inclined surface 26
Since the bent portion that has hit the guide rod is guided to the connecting rod sliding surface 24 by the inclined surface 26 that is continuous with the connecting rod sliding surface 24, the rotated main body case 2 can be easily returned to the original horizontal state.

In FIG. 11, the hinge portion 4 shown in FIGS. 3 and 4 has a structure in which the support 6 is pulled down to obtain rotation and swinging motion. Then, for example, rotation and rocking movement are obtained by using a force obtained by, for example, the body case 2 hitting a wall surface.

In the figure, a ball 21 is formed at the tip of a support 6 whose tip is bent at a right angle. On the other hand, the hinge receiving portion 25 includes a track-shaped sphere support surface 38, an inclined surface 39 having an inclination angle of 30 ° formed on the main body case 2 side above the sphere support surface 38, and a main body above the sphere support surface 38. And a connecting rod sliding surface 40 formed on the opposite side of the case 2. A support rod 42 having a spring 41 for constantly pushing the ball 21 to the side opposite to the main body case 2 is disposed on the sphere support surface 38 on the main body case 2 side. In this embodiment, as shown in FIG. A, the ball 21 is always positioned on the opposite side of the main body case 2 from the sphere support surface 38 by the support rod 42. In this state, the rotation of the support 6 is prevented by the connecting rod sliding surface 40, and the support 6 can operate only in the pull-up or pull-down direction indicated by the arrow B direction. On the other hand, when the main body case 2 hits the wall surface and pushes the support 6 via the handle 103, the ball 21 attached to the support 6 pushes the support rod 42, as shown in FIG. The ball 21 moves to the main body case 2 side of the sphere support surface 38. In this state, since the support 6 is not restricted by the connecting rod sliding surface 40, it can rotate and swing vertically.
In this embodiment, the angle between the extension tube 10 and the floor surface is set to a favorable 45 ° by setting the inclined surface 39 to 30 ° and refracting the support 6 upward by 15 °. Also,
The degree of the force for obtaining the rotation and the swing is arbitrarily set by adjusting the force of the spring 41. Here, the state shown in FIG. B can be changed to the state shown in FIG. A by removing the force applied to the main body case 2 and making the longitudinal direction of the main body case 2 right and left. As described above, according to the present embodiment, in normal floor cleaning, the main body case 2 is always fixed to the left and right posture, and even when the handle portion 103 is moved up and down, the lower surface of the main body case is kept on the floor surface. Since it can be brought into contact, a cleaning posture excellent in straightness can be obtained. On the other hand, body case 2
When the force is applied to the main body case 2, the main body case 2 can be rotated, and further, the twisting operation and the vertical movement of the handle portion 103 can be performed, so that the lateral movement and the direction change can be smoothly and easily moved. In addition, the cleaning operation can be performed continuously.

[Second Embodiment] FIGS. 12 to 16 show a suction port according to a second embodiment of the present invention. FIG. 12 is a central longitudinal sectional view of the suction port, and FIG. 13 is a hinge. FIG. 14 is a horizontal sectional view of the hinge part, FIG. 15 is a vertical sectional view of the hinge part, and FIG. 16 is a conceptual view of the operation of the universal wheel.

First, referring to FIG. 12, a schematic structure of the mouth portion according to the present embodiment will be described. The suction part according to the present embodiment is used in the vacuum cleaner 100 described with reference to FIG.

In the drawing, first, a suction port is generally indicated by reference numeral 43, and a main body case 44 having a dust suction port 8 and a connection joint 45 for communicating the main body case 44 with the extension pipe 10 are provided. , The body case 44 and the connection joint 45
And a hinge portion 46 for connecting at least a horizontal direction and a vertical direction so as to be rotatable. The main body case 44
Has a horizontally long and flat shape, and is provided with adjustable wheels 47a and 47b provided with a lifting mechanism 59 (shown in FIG. 16) on an installation surface with a floor provided with the dust suction port 8. Hinge part 46
Is composed of a communication part 48, a first movable part 49 and a second movable part 50 arranged above and below the communication part 48.
The first movable portion 49 enables the communication portion 48 and the main body case 44 to rotate in the horizontal direction, and the second movable portion 50 allows the communication portion 4 to rotate.
8 and the connection joint 45 are allowed to rotate in the vertical direction. The hinge part 46 is connected to the main body case 44 and the connection joint 4.
5 are connected to each other to form a suction passage 22. For this reason, as shown by the arrow A, dust on the floor surface is sucked through the dust suction port 8 provided on the bottom surface of the main body case 44, and the turbine brush 14, the air turbine 51, the first movable portion 49,
It is sucked into the vacuum cleaner main body 101 via the communication part 48, the second movable part 50, the connection joint 45, and the extension pipe 10. The hinge part 46 is connected to the main body case 44 and the connection joint 4.
5 allows at least horizontal and vertical rotation.

Next, the hinge portion 46 will be described in detail with reference to FIGS. In FIGS. 13 and 14, the communicating portion 48 has a cylindrical shape, and circular connection holes 53 formed in the step portion 13 of the main body case 44 are formed by convex rings 52a and 52b formed around the lower portion thereof. The communication portion 48 is rotatably attached to the main body case 44 by being sandwiched. That is, the first movable portion 49 is constituted by the convex rings 52a and 52b and the connection hole 53. A support 55 having a rotary shaft hole 54 on both sides is formed on the upper portion of the communication portion 48, and one end of a connection joint 45 having a rotary shaft 56 between the supports 55 is connected to the rotary shafts 54, 56. It can be installed around the center. That is, the second movable portion 50 is constituted by the rotation shaft hole 54, the rotation shaft 56, and the support 55. Further, in the present embodiment, although not shown, a sliding surface 57 where the support 55 and the connection joint 45 are in contact with each other is provided with the same one as the rotation lock mechanism 27 described with reference to FIG. ° and 90 °
The rotation of the second movable portion 50 is fixed in the state where the second movable portion 50 is pulled up.

In the present embodiment, the first movable portion 49 enables a total of 180 ° rotation by 90 ° left and right with respect to a position orthogonal to the longitudinal direction of the main body case 44. Further, the connection joint 45 and the extension pipe 1 are formed by the second movable portion 50.
The handle portion 103 (not shown) attached via the “0” can be raised or lowered within a 90 ° operation range from a horizontal position to a vertical position. Further, the rotation of the handle portion 103 can be fixed at the positions of 45 ° and 90 °.

Referring to FIG. 15, an opening 58 is formed at the end of the second movable portion 50 of the connection joint 45, and the opening 58 extends from the horizontal position to the right angle position of the connection joint 45. The communication part 48 and the connection joint 45 are formed to communicate with each other. FIG. A shows a state where the connection joint 45 is at 45 °, and FIG. B shows a state where the connection joint 45 is horizontal. In this embodiment, the degree of communication (opening ratio) between the communication portion 48 and the connection joint 45 is maximized when the most frequently used connection joint 45 is at 45 °.

Next, referring to FIG. 16, the free wheels 47a and 47b having the lifting mechanism 59 will be described in detail. In the figure, the free wheels 47a and 47b are
A shaft 29 supporting a rubber roller 28, a support 30 supporting the shaft 29 from both sides, and a support 30
And a rotating shaft 32 that supports the base 31. And free wheels 4
7 a and 47 b are rotatably attached to a circular concave portion 33 formed at a predetermined position of the lower case 12 through a rotary shaft 32 by 360 °. 60 is a base portion 31 and a concave portion 33
Is a coil spring disposed between the universal wheels 47
a is acting to push a out of the recess 33.
61 is provided at the end of the rotating shaft portion 32,
It is a stopper to prevent the jumping out. Reference numeral 62 denotes a wedge-shaped movable block which is put in and taken out between the stopper 61 and the lower case 12. The movable block 62 includes the connecting rod 6.
3 is connected to a movable lever 64 disposed on the upper surface of the upper case 11.

Now, the free wheels 47a, 47b of the present embodiment
According to FIG. 1, when the movable lever 64 is operated to insert the movable block 62 into the stopper 61 and the lower case 12, the universal wheels 47a and 47b are housed in the concave portion 33, and The protrusion amount of the lower case 47 from the lower case 12 can be reduced. On the other hand, as shown in FIG. B, if the movable block 62 is pulled out from the space between the stopper 61 and the lower case 12 by operating the movable lever 64, the universal wheels 47a, 47b are moved by the coil spring 60 to the lower case 1.
2 can protrude. As described above, according to the universal wheels 47a and 47b, for example, the amount of protrusion of the universal wheels 47a and 47b is small on a tatami mat or a floor surface, and a carpet or the like with long hair legs is increased in the amount of projection by increasing the load on the user. The weight can be reduced. Further, if the movable lever 64 is also used as a switching lever for switching between a carpet and a tatami mat, it can be changed to the universal wheels 47a and 47b suitable for the floor surface by one operation.

As described above, the suction port 43 of the present embodiment is used.
According to this, since the rotary operation (horizontal direction and vertical direction) can be performed with the suction passage 22 via the hinge portion 46,
The number of parts can be reduced and the structure can be simplified.
Moreover, the hinge part 46 is connected to the main body case 44 and the connection joint 4.
5 can always be rotatably moved in the horizontal direction within an operating range of 180 °, and in the vertical direction, the connection joint 45 can be moved.
Can be rotatably moved within a 90 ° operating range from a horizontal state to a right angle state. Moreover, in the vertical direction, the rotation in the vertical direction can be fixed at the 45 ° state most used by the user, so that a stable cleaning posture can be obtained. In addition, since the rotation can be fixed even when the vertical direction is 90 °, the storage property can be improved. Also,
Since the rotation in the vertical direction and the rotation in the horizontal direction can be operated independently or simultaneously, the twisting operation of the handle portion 103 can also be performed. Further, in this embodiment,
Since the amount of protrusion of the free wheels 47a and 47b can be adjusted according to the floor surface, it is possible to reduce a decrease in rotational performance caused by the floor surface.

In this embodiment, the operation range in the vertical direction is set to 90 ° in consideration of the storability. However, if cleaning is mainly performed, the operation range may be at least 45 ° from the horizontal state. In the second embodiment, the hinge 46
Is composed of a communication part 48, a first movable part 49 and a second movable part 50 arranged above and below the communication part 48,
In the present invention, any hinge portion that can be operated in the horizontal direction and the vertical direction may be used.For example, a hinge portion is formed by a sphere portion and the sphere receiving portion. May be provided.

Further, in the above-described embodiment, the swivel wheel of the mouth portion is described as a roller that rotates a shaft, but a ball-shaped rotating wheel may be used.

[Third Embodiment] FIG. 17 is a side view showing a suction port according to a third embodiment of the present invention. The first
In the second embodiment and the second embodiment, the vacuum cleaner 100 includes a vacuum cleaner main body 101, a suction hose 102, and a handle 10.
3, the connecting pipe 10 and the suction port 1, but the present invention is not limited to this, and the suction port 1 and the handle section 103 are substantially connected to each other to form the handle section 103.
It is only necessary that the mouthpiece 1 or the mouthpiece 43 can be rotatably moved at least in the horizontal direction and the vertical direction by moving.

For example, FIG. 17 shows a case where the suction port 1 or the suction port 43 is employed in a vacuum cleaner called a stick type. FIG. A is a vertically long vacuum cleaner main body 65 having a circular cross section and having a blower for sucking dust therein, a handle portion 66 provided at an upper portion in a longitudinal direction of the vacuum cleaner main body 65, and a vacuum cleaner. FIG. 2B shows the vacuum cleaner main body 65 and the handle part 66. The suction part 1 is detachably attached to the lower part of the main body 65 in the longitudinal direction.
And a suction port 43. In the figure,
The vacuum cleaner main body 65 is provided with a blower (not shown) inside the suction port 1 and a dust collector (not shown) inside the handle 66. Reference numeral 67 denotes a second handle provided on the front of the vacuum cleaner main body 65.
You can carry the main body by hand. Reference numeral 68 denotes a flexible communication hose attached around the second handle portion 67. One end of the communication hose 68 is connected to the dust collecting portion, and the other end is a vacuum cleaner main body. 65 is removably attached to the lowermost connection port 69a. The suction port 1 or the suction port 43 is attached to the bottom of the vacuum cleaner main body 65, and a connection port 69b is provided. The connection port 69b and the connection port 69a are internally connected. In this embodiment, dust is taken into the dust collection chamber from the suction port 1 or the suction port 43 via the connection port 69b, the connection port 69a, and the communication hose 68, collected in a disposable paper filter (not shown), and the air flow is Air is exhausted from the exhaust port 70. In addition, the vacuum cleaner body 65 and the suction port 1 or the suction port 43 are provided.
Is rotatably connected in the horizontal and vertical directions, so that the suction port 1 or the suction port 43 can be freely moved while supporting / operating the handle 66 provided with an operation switch. In addition to reducing the burden on the user, a good working posture can be obtained, and straight running performance, lateral movement and direction change can be smoothly performed. In particular, in this embodiment, most of the weight of the vacuum cleaner main body 65 in which the heavy blower is arranged at the lower portion is supported by the suction port 1 or the suction port 43, so that the burden on the hand can be reduced. Further, it is also possible to remove one end of the communication hose 68 and perform cleaning on the table.

Further, as another example of the stick type, in a handy type vacuum cleaner, the suction port may be connected by a hinge portion which is movable at least in a horizontal direction and a vertical direction. Further, in a vacuum cleaner called a central cleaner in which a suction hose is embedded in a building, one end of a suction hose 102 shown in FIG. 6 may be attached to a suction port of the building instead of the vacuum cleaner main body 101.

Although the mouthpiece 1 has been described as a floor mouthpiece, the invention is not limited to this. For example, a circular auxiliary mouthpiece with a brush may be used.

[0040]

According to the present invention, the mouthpiece can be rotatably moved at least in the horizontal and vertical directions via the handle, so that the burden on the hands and arms can be reduced and a good working posture can be achieved. In addition to being able to obtain, straight running performance and lateral movement and direction change can be smoothly performed.

[Brief description of the drawings]

FIG. 1 is an external view of a mouth portion of a first embodiment according to the present invention as viewed from the back.

FIG. 2 is a central longitudinal sectional view of a mouth portion of the first embodiment according to the present invention.

FIG. 3 is an external view of a main part of a hinge portion of a mouth portion according to the first embodiment of the present invention.

FIG. 4 is a cross-sectional view of the hinge portion of the mouth portion according to the first embodiment of the present invention.

FIG. 5 is an explanatory view of a universal wheel of a mouth portion of the first embodiment according to the present invention.

FIG. 6 is an explanatory diagram of a use state of the first embodiment according to the present invention.

FIG. 7 is an explanatory diagram of a use state of the first embodiment according to the present invention.

FIG. 8 is an explanatory diagram of a use state of the first embodiment according to the present invention.

FIG. 9 is a sectional view showing another application example of the first embodiment according to the present invention.

FIG. 10 is a plan view and a cross-sectional view showing another application example of the first embodiment according to the present invention.

FIG. 11 is a sectional view showing another application example of the first embodiment according to the present invention.

FIG. 12 is a central longitudinal sectional view of a mouth portion of a second embodiment according to the present invention.

FIG. 13 is an external view of a hinge portion according to a second embodiment of the present invention.

FIG. 14 is a horizontal sectional view of a hinge portion according to a second embodiment of the present invention.

FIG. 15 is a longitudinal sectional view of a hinge portion according to a second embodiment of the present invention.

FIG. 16 is an operation conceptual diagram of a universal wheel according to a second embodiment of the present invention.

FIG. 17 is a side view of a third embodiment according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Suction part, 2 ... Body case, 3 ... Connection joint, 4 ... Hinge part, 5 ... Connection part, 5a, 5b, 5c ... One end of a connection part,
6 support, 7 telescopic hose, 8 dust suction port, 9a,
9b: free wheels, 10: extension tube, 11: upper case, 12
... lower case, 13 ... step, 14 ... turbine brush, 1
5 ... opening, 16 ... lock switch, 17 ... hinge female part, 18 ... hinge male part, 19, 20 ... lock switch,
21: ball, 22: suction passage, 23: sphere support surface, 2
4: connecting rod sliding surface, 25: hinge receiving portion, 26: inclined surface,
27: rotation lock mechanism, 27a: recess, 27b, 27c
... Rib, 27ba, 27ca ... Spring, 100 ... Vacuum cleaner, 101 ... Vacuum cleaner body, 102 ... Suction hose,
103 Handle part.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI A47L 9/32 A47L 9/32 B

Claims (26)

[Claims] 1. A vacuum cleaner main body including a blower for sucking dust, a suction unit including a dust suction port, a handle unit for moving the suction unit, the vacuum cleaner main body and a suction unit And a hinge for connecting the suction port to the handle so as to be rotatable at least in the horizontal and vertical directions. 2. A vacuum cleaner body provided with a blower for sucking dust, a suction port provided with a dust suction port, and a flexible suction hose having one end attached to and communicating with the cleaner body. A connection pipe attached to and communicated with the other end of the suction hose, a flexible connection hose communicating the connection pipe with the suction port, and connecting the connection pipe and the suction port at least horizontally and vertically. An electric vacuum cleaner comprising: a hinge portion rotatably connected; and a handle portion provided on the connection pipe, for moving the suction port through the connection pipe. 3. A vacuum cleaner main body having a blower for sucking dust, a suction part having a dust suction port, a communication part communicating the suction part with the cleaner main body, and a suction part in the cleaner main body. An electric vacuum cleaner, comprising: a hinge portion for connecting the portions so as to be rotatable at least in a horizontal direction and a vertical direction; and a handle portion provided on the cleaner body. 4. The vacuum cleaner according to claim 1, wherein an operation range of the hinge portion is at least 180 degrees in a horizontal direction and 45 degrees in a vertical direction. 5. The vacuum cleaner according to claim 1, wherein said hinge portion includes a lock means for fixing operation at a predetermined position in an operation range. 6. The vacuum cleaner according to claim 1, wherein the hinge is a ball joint. 7. A vacuum cleaner main body provided with a blower for sucking dust, a suction part provided with a dust suction port, a handle part for moving the suction part, the vacuum cleaner main body and a suction part And a communication hinge portion for connecting the suction portion to the handle portion so as to be rotatable at least in a horizontal direction and a vertical direction. 8. A vacuum cleaner body having a blower for sucking dust, a suction port having a dust suction port, and a flexible suction hose having one end attached to and communicating with the cleaner body. A connection pipe attached to and connected to the other end of the suction hose, a communication hinge section connecting the connection pipe and the suction port, and connecting at least horizontally and vertically so as to be rotatable; and A vacuum cleaner provided with a handle for moving the suction port through the connection pipe. 9. A vacuum cleaner main body provided with a blower for sucking dust, a suction part provided with a dust suction port, and a communication between the cleaner main body and the suction part, and rotatable at least in a horizontal direction and a vertical direction. And a communication hinge portion connected to the vacuum cleaner and a handle portion provided on the cleaner body. 10. The vacuum cleaner according to claim 7, wherein an operating range of the communication hinge portion is at least 180 degrees in a horizontal direction and 45 degrees in a vertical direction. 11. The vacuum cleaner according to claim 7, wherein the communication hinge portion includes a lock means for fixing the operation at a predetermined position in the operation range. 12. The communication hinge according to claim 7, wherein the communication hinge is a ball joint having a communication opening.
# 1 vacuum cleaner. 13. The vacuum cleaner according to claim 1, wherein the suction port includes a free wheel that is rotatable in a horizontal direction. 14. The vacuum cleaner according to claim 13, wherein the universal wheel is a ball wheel. 15. The vacuum cleaner according to claim 13, wherein the universal wheel is attached to the suction port so as to be able to come and go. 16. A suction port main body provided with a dust suction port, a communication section communicating the vacuum cleaner main body with a blower for sucking dust and the suction port main body, and for moving the suction port main body. And a hinge for rotatably connecting the handle to at least the horizontal direction and the vertical direction. 17. The suction opening for a vacuum cleaner according to claim 16, wherein an operation range of the hinge portion is at least 180 degrees in a horizontal direction and 45 degrees in a vertical direction. 18. The suction port for an electric vacuum cleaner according to claim 16, wherein the hinge portion has a lock means for fixing the operation at a predetermined position in the operation range. 19. The suction port according to claim 16, wherein the hinge is a ball joint. 20. A suction port main body provided with a dust suction port, a vacuum cleaner main body provided with a blower for sucking in dust, and a handle for moving the suction port main body while communicating with the suction port main body. A suction hinge portion for connecting the portion to be rotatable at least in a horizontal direction and a vertical direction. 21. The suction opening for a vacuum cleaner according to claim 20, wherein an operating range of the communication hinge portion is at least 180 degrees in a horizontal direction and 45 degrees in a vertical direction. 22. The suction part for a vacuum cleaner according to claim 20, wherein the communication hinge part includes a lock means for fixing the operation at a predetermined position in the operation range. 23. The communication hinge according to claim 20, wherein the communication hinge is a ball joint having an opening for communication.
22. Vacuum cleaner suction port. 24. The suction part for a vacuum cleaner according to claim 16, further comprising a freely rotatable wheel which can be rotated in a horizontal direction. 25. The suction part for an electric vacuum cleaner according to claim 24, wherein the universal wheel is a ball wheel. 26. The suction part for a vacuum cleaner according to claim 24, wherein the universal wheel is attached to the suction part so as to be able to protrude and retract.