JP3286250B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner in which a user can freely select a rotation angle of a mouthpiece by operating a hand handle, and in particular, by operating a hand handle. When rotating the mouthpiece,
So that the presence of the suction hose does not interfere, or
The present invention relates to a structure around a handle at hand so that the presence of a suction hose does not hinder the cleaning of a place having a low height.

[0002]

2. Description of the Related Art In a vacuum cleaner, a joint connected to a handle at a hand via a connecting pipe (extended pipe) is generally provided with coupling means. And in the conventional vacuum cleaner, the connection pipe (hand handle body)
The horizontal moving mode (hereinafter, referred to as a first moving mode) suitable for normal cleaning (cleaning of a wide place) in which the suction body moves in parallel with the short side direction thereof along with the rectilinear forward and backward movement of ,
Care was taken to make it easy to take,
With respect to a vertically long movement mode (hereinafter, referred to as a second movement mode) suitable for cleaning a wall or the like in which the mouthpiece moves in parallel with the longitudinal direction thereof along with the linear forward and backward movement of the connecting pipe,
Not much attention was paid, and there was a problem in the operability of cleaning the walls and the like.

[0003] The applicant of the present application has filed Japanese Patent Application No. 9-141.
374, Japanese Patent Application No. 9-359272, Japanese Patent Application No. 10-6
No. 7112 proposes a vacuum cleaner in which the mouthpiece can easily adopt the first and second movement modes described above by twisting the grip portion of the hand handle body.

In each of the above-mentioned prior applications, the joint pipe member provided on the mouthpiece is rotatably connected to the mouthpiece body so as to rotate in the vertical direction along the vertical plane. And a second joint pipe rotatably connected to the first joint pipe and rotating left and right along a plane perpendicular to the vertical plane. By the twisting operation, while maintaining the state in which the mouthpiece is in close contact with the floor surface, it is easy to change from the first movement mode to the second movement mode or from the second movement mode to the first movement mode. The attitude can be changed.

[0005]

By the way, the mouthpiece can take a first movement mode and a second movement mode by the twisting operation of the grip portion of the hand handle body proposed in each of the above-mentioned prior applications. In the vacuum cleaner, since the grip portion of the hand handle body and the tubular portions whose both ends are respectively connected to the suction hose and the connection pipe are integrated, when the grip portion of the hand handle body is twisted, ,
The suction hose connected to the tubular part also moves with the tubular part, which may cause the suction hose to cling to the body and obstruct it. That is, as shown in FIG. 8B, when the grip portion of the hand handle is twisted sideways to cause the mouthpiece to take the second movement form, the connection portion of the suction hose with the hand handle is also changed. There is a problem in that the suction hose is attached to the user's body and obstructs the suction hose. Alternatively, in a case where a low-height place such as under a bed is cleaned by causing the suction body to take the first movement form, as shown in FIG. Due to the height of the suction hose hanging obliquely, there is a problem that the connecting pipe cannot be laid horizontally and close.

Accordingly, the applicant of the present application has filed Japanese Patent Application No. 9-314.
No. 795, a tubular portion bent in the shape of "F" is provided on a hand handle body, and a connecting pipe piece is rotatably attached to an outer peripheral portion of the tubular portion provided with a peripheral opening. A configuration was proposed in which a suction hose was connected to the tube piece. In the technique proposed in Japanese Patent Application No. 9-314795, since the connecting pipe piece connected to the suction hose is rotatable with respect to the tubular portion of the hand handle, the grip of the hand handle is twisted sideways. Even when the suction body takes the second movement mode, the connection hose pieces rotate relative to each other due to the weight of the suction hose, so that the suction hose can be kept hanging on the lower side, and the connection hose piece can be held by hand. By rotating the suction hose, the suction hose can be positioned beside the handle body at hand, and the connecting pipe can be laid almost horizontally.

However, the aforementioned Japanese Patent Application No. 9-31479 is disclosed.
In the technique proposed in No. 5, the number of parts is increased due to the need for a connecting pipe piece divided into two, and the shape of the tubular portion of the hand handle body becomes complicated, which makes assembly troublesome and costly. There is a problem that it leads to an increase, and also hinders the weight reduction of the handle body at hand. Further, there is a problem that the suction passage in the vicinity of the handle member becomes complicated, impairs the ventilation efficiency, and easily generates noise.

[0008] The present invention has been made in view of the above points,
The purpose is to operate the handle by rotating the mouthpiece by operating the handle in the vacuum cleaner in which the user can freely select the rotation angle of the suction body by operating the handle. In order to prevent the presence of the suction hose from obstructing, or to prevent the presence of the suction hose from obstructing when cleaning a low place, a simple and good assembly, and An object of the present invention is to make it possible to realize a ventilation efficiency and noise suppression.

[0009]

The above object is achieved.
Therefore, in one representative invention according to the present invention, dust is absorbed.
Vacuum cleaner body with blower to get in and this vacuum cleaner
It is attached to the main body and communicates with the suction passage inside the vacuum cleaner main body
Suction hose and the suction hose attached to this suction hose.
The hand handle body that communicates with the pull hose and this hand
Connection pipe attached to the handle body and communicating with the hand handle body
And a suction port attached to this connection pipe and communicating with the connection pipe
The hand handle body
Has a central axis which coincides with the central axis of the connecting pipe,
A first pipe connected to the connection pipe, and the first pipe
And a predetermined angle with respect to the center axis of the first tubular body.
A grip portion a part of which extends upwardly to form a, its
Has a first connection portion at one end and a second connection portion at the other end.
And a second pipe body bent and formed, wherein the first connection
The central axis of the portion is the central axis of the connecting pipe and the first axis of the connecting pipe.
The first connecting portion is aligned with the central axis of the tube,
The second connecting portion is rotatably connected to a pipe body, and a center axis of the second connecting portion.
The line is a predetermined downward below the central axis of the first connection portion.
Make an angle, the second connection is connected to the suction hose
Take the configuration.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention (hereinafter, referred to as the present embodiment) will be described in detail with reference to FIGS.

FIG. 1 is an overall perspective view of a vacuum cleaner according to the present embodiment. In FIG. 1, 1 is a cleaner body, 2 is a suction hose, 3 is a handle at hand, 4 is a connecting pipe (extended pipe), and 5 is a mouthpiece.

The cleaner body 1 has a built-in blower for sucking dust into the dust collecting chamber.
One end of the suction hose 2 is attached to the suction hose 2, and a hand handle body 3 is attached to the other end of the suction hose 2. One end of a connection pipe 4 is attached to the hand handle 3, and a mouthpiece 5 is attached to the other end of the connection pipe 4. The mouthpiece 5 communicates with the suction passage in the cleaner body 1 via the connection pipe 4, the handle body 3 at hand, and the suction hose 2.

The main body 1 of the cleaner has a pair of large wheels 11 and one free wheel 12, and can be moved on the floor (cleaning surface) via the suction hose 2 by the handle handle 3 at hand. I can do it.

The suction hose 2 functions as a transport passage for transporting dust into the cleaner main body 1 and the suction hose 2 functions as a transport passage.
Is provided with a function as a moving pulling means for moving the. In this embodiment, a bellows-shaped flexible hose is employed.

The hand handle body 3 has a function of communicating the suction hose 2 and the connection pipe 4, and moves (runs) the cleaner body 1.
Function of moving the mouthpiece 5 (running),
It has a function of operating the attitude of the suction body 5 and a function of controlling the operation of the cleaner body 1. The hand handle body 3 is detachably connected to the suction hose 2 and the connection pipe 4 so as to form a dust conveyance path for communicating the suction hose 2 and the connection pipe 4.

In this embodiment, the hand handle 3 is connected to a first tube 31 connected to the connection tube 4, and is connected to the first tube 31 rotatably and is connected to the suction hose 2. And a grip portion 33 integrated with the first tube body 31 and extending so as to form a predetermined angle with the central axis of the first tube body 31. ing.

The holding portion 33a formed at the end of the grip portion 33 is bent at a predetermined angle from the root portion of the grip portion 33, and the holding portion 33a of the grip portion 33 is located at the center axis A1 of the connecting pipe 4. 100 °
The angle α is about 120 °. By providing such an angle α, as shown in FIG. 2, a Japanese woman or the like having an average height can easily hold the holding portion 33a and perform cleaning when cleaning. At the same time, the mouthpiece 5 is rotated with respect to the connection pipe 4 in a state where the mouthpiece 5 is in close contact with the floor surface by the twisting operation of the holding portion 33a (rotation P1 about the central axis A1 of the connection pipe 4). (Rotation P2 in FIG. 1), whereby the rotation operation of the mouthpiece 5 can be performed easily and easily. This is because the holding portion 33a of the grip portion 33 is
Has an angle α with respect to the center axis A1 of the
This is because, by twisting 3a, a rotational moment is generated in the joint pipe member of the mouthpiece 5 described later, and the joint pipe member has a configuration as described in, for example, Japanese Patent Application No. 10-67112.

The connecting pipe 4 includes a handle body 3 at hand and a suction body 5.
Are communicated with each other, and the movement of the hand handle body 3 is transmitted to the mouthpiece 5. Here, connection pipe 4
Is formed by combining two tube members so as to be extendable and contractible, and is configured so that the length can be adjusted according to the user's preference or the like.

The suction body 5 has a suction body 51 formed with a suction port for sucking dust on the bottom surface thereof, and the suction body 5
1 is connected to the connection pipe 4 so as to be relatively rotatable, and has a joint pipe member 52 that communicates the suction main body 51 with the connection pipe 4. One end of the joint pipe member 52 is rotatably connected to the suction main body 51, and a first joint pipe 53 that rotates in the vertical direction along the vertical plane, and one end of the first joint pipe 53 is the first joint pipe 53. A second joint pipe rotatably connected to the other end of the joint pipe 53 and rotating left and right along a plane perpendicular to the vertical plane, and connected to the connection pipe 4 at the other end. 5
It consists of four. Although the details of the joint pipe member 52 are omitted here, as described above, the configuration of the joint pipe member 52 of the present embodiment is the same as that of the above-mentioned Japanese Patent Application No. Hei.
It is the same as that described in No. 0-67112.

Here, the suction body 51 (suction body 5) has a slender rectangular shape when viewed from the top, and the suction body 5 is moved by the straight forward and backward movement of the connecting pipe 4 (hand handle body 3). A horizontally long moving form suitable for normal cleaning (cleaning of a wide place) in which the main body 51 moves in parallel with its short side direction (the first moving form described above; Direction) and a vertically long movement mode (the second movement described above) suitable for cleaning a wall edge or the like in which the suction main body 51 moves in parallel with the longitudinal direction of the connection pipe 4 in accordance with the linear forward and backward movement of the connecting pipe 4. (A mode in which the mouthpiece main body 51 moves in the direction of the arrow S2 in a state shown by a one-dot chain line in FIG. 1).

Next, the details of the hand handle 3 will be described. 3 is a perspective view of the hand handle body 3, FIG. 4 is an exploded perspective view of the hand handle body 3, FIG. 5 is a cross-sectional side view of the hand handle body 3, and FIG.

In FIG. 3 to FIG. 6, reference numeral 31 denotes a first tube of the above-mentioned hand handle body 3;
Is, as shown in FIG. 5, the central axis A of the connecting pipe 4 described above.
1 and has a central axis A2 that matches with 1 and is fitted and connected to the end of the connection pipe 4.

The grip portion 33 integrated with the first tubular body 31 extends obliquely upward so as to form a predetermined angle with the central axis A2 of the first tubular body 31, and an end of the grip portion 33 is formed. The hold part 33 described above for grasping by hand
a is bent. As shown in FIG. 5, a control circuit, a switch,
A circuit board 41 on which a light emitting diode or the like is mounted, a battery 42 for supplying power to the circuit board 41, and the like are built in, and a push rod 43 for operating a switch is provided on the upper surface of the grip portion 33. And a light emitting window 44 are provided. In the present embodiment, the push rod 4 of the grip portion 33 is used.
By operating the switch 3, an optical signal for remotely controlling the internal circuit of the cleaner main body 1 is transmitted from the light emitting diode to the light receiving portion of the cleaner main body 1 through the light emitting window 44 using ceiling reflection or the like. Has become.

As shown in FIG. 5, the second tube 32 rotatably connected to the first tube 31 has a center axis A3 which coincides with the center axis A2 of the first tube 31. And bent downward from the first connection portion 34 so as to form a predetermined angle with the first connection portion 34 having the angle A and the center axis A3 of the first connection portion 34 (that is, the center axis A2 of the first tubular body 31). Second
And a connection portion 35. FIG.
, B1 is the central axis of the second connection portion 35.

The first connecting portion 34 of the second tube 32
Is inserted into the first tube 31 so as to be relatively rotatable, and the first connecting portion 34 of the first tube 31 and the second tube 32 is not separated by appropriate means. The first connection portion 34 (the second tube 32) is connected
However, it is configured to be able to rotate around the central axis A2 of the first tubular body 31. In addition, although any means can be adopted as the retaining coupling means between the first pipe 31 and the first connecting portion 34 of the second pipe 32, in the present embodiment, as shown in FIG. An annular groove 36 is provided in the first connecting portion 34 to
After the first connecting portion 34 is inserted into the tubular body 31, a part of the retaining piece 38 is removed from the opening 37 of the first tubular body 31 by the annular groove 3.
6, the first connecting portion 34 and the first tube 31 are connected so as not to come off.
In addition, since the retaining piece 38 is detachably attached, the retaining piece 38 is detached at the time of maintenance such as when dust is caught inside the pipe, and the first pipe 31 and the second pipe 32 are easily attached. Can be decomposed into

As shown in FIG. 4, a connecting ring 21 is attached to the end of the suction hose 2, and the connecting ring 21 is connected to the second connecting portion 35 of the second pipe 32.
The second connecting portion 35 and the suction hose 2 are connected by inserting the second connecting portion 35 into the end of the suction hose 2. In addition, 21
a is a locking portion of the connecting ring 21; 35a is a second connecting portion 35;
The second connecting portion 35 and the suction hose 2 are connected so as not to come off by so-called snap-in connection between the locking portion 21a and the locking portion 35a.

In this embodiment, the end of the suction hose 2 is held by the connecting ring 21 so as to be rotatable by appropriate means. As a result, the suction hose 2 is In the state connected to the second connection unit 35,
The suction hose 2 is configured to rotate relative to the second connection portion 35. Thereby, the torsion of the suction hose 2 can be prevented.

As shown in FIG. 6, the first pipe 31 and the second
When the suction handle 2 and the connection pipe 4 are attached to the hand handle body 3, the central axis A3 of the first connection part 34 (that is, the first handle body 3) is completed. The angle β between the central axis A2 of the tube 31 = the central axis A1 of the connecting pipe 4) and the central axis B1 of the second connecting portion 35 (that is, the central axis of the end of the suction hose 2).
Is set to be 90 ° to 150 °. The reason for this is that the suction hose 2 always hangs obliquely downward when the user stands while holding the holding portion 33a of the grip portion 33 of the hand handle body 3 during cleaning. This is because the cleaner main body 1 can be easily pulled and moved, and also so as not to disturb the hand having the holding portion 33a of the grip portion 33.

FIG. 7 shows a cross section of the hold portion 33a of the grip portion 33 of the hand handle body 3, and as shown in FIG. 7, the cross section of the hold portion 33a is a rounded substantially inverted triangle. Is formed. The reason for this is that when the user holds the hold portion 33a in his hand,
The reason for this is that the grip portion 33a (holding portion 33a) can be easily recognized with a tactile sense by always tactilely sensing the top of the bottom surface of the holding portion 33a to make it easier to grasp.

Next, the operation of this embodiment will be described. Now, when the mouthpiece 5 is in the first movement mode described above, the grip portion 33 (holding portion 33a) of the handle body 3 at hand is twisted by about 90 °, and the second piece of the mouthpiece 5 described above is twisted.
It is assumed that the moving mode is taken. That is, as shown in FIG. 3, the posture of the mouthpiece 5 is shifted from the first movement mode to the second movement mode by twisting (rotating) the grip portion 33 in the direction of the arrow R1 by about 90 °. I do. At this time,
The first tube 31 and the second tube 32 integrated with the grip portion 33 are connected so as to be relatively rotatable with each other, and furthermore, the suction tube connected to the second tube 32. Since the own weight of the hose 2 is always acting, even if the grip portion 33 rotates in the direction of the arrow R1, a rotational moment in the direction of the arrow M1 due to the own weight of the suction hose 2 acts on the second tube 32. As a result, the second tube 32 maintains the original rotation position, and the suction hose 2 is maintained in the original state without being lifted.

Therefore, as shown in FIG.
Even when the gripper 33 of the hand handle body 3 is twisted sideways to cause the mouthpiece 5 to assume the second movement mode, the connection portion of the suction hose 2 with the hand handle body 3 is not lifted, and the suction hose 2 Maintains the state in which the suction hose 2 hangs under the handle body 3 at hand, so that the suction hose 2 does not cling to the body of the user, which is convenient.

Further, in the present embodiment, when a low place such as under a bed is cleaned by making the suction body take the first moving form, as shown in FIG. By rotating the second tube 32 by about 90 ° with respect to the first tube 31 by hand, the suction hose 2 connected to the handle body 3 at hand is raised to the substantially same height as the first tube 31. The connection pipe 4 can be laid in a substantially horizontal state because the connection pipe 4 can be laid in a substantially horizontal state, and a low-height place can be easily cleaned to the back, which is convenient in this respect. It will be.

Furthermore, in this embodiment, since the suction hose 2 is rotatable with respect to the second tube 32, the suction hose 2 may be twisted at the time of storage, or may be manipulated or manipulated. Even when the suction hose 2 is twisted, the rotation of the second tube 32 and the rotation of the suction hose 2 combine to easily prevent the suction hose 2 from being twisted as shown in FIG. It is possible to return to the state, and this is also convenient.

Further, in this embodiment, the holding portion 33a and the connecting pipe 4 are connected to each other so that the substantially central portion of the holding portion 33a of the grip portion 33 is located on the extension of the central axis A1 of the connecting pipe 4. Between the central axis A1
In contrast, the second tube 32 (suction hose 2) has a rotatable structure, so that the operability of the twisting operation of the hand handle 3 can be improved without imposing a burden on the wrist. . Moreover, as means for realizing such a structure, a holding portion 33a located on an extension of the central axis of the connection pipe 4 (first pipe 31) and a first pipe 31
Between the central axis A1 and the second tube 32 holding the end of the suction hose 2 so as to be rotatable, which is simple, has a small number of parts, and is easy to assemble. Has adopted. In addition to such a simple structure of the hand handle body 3, the bending portion of the suction passage in the entire hand handle body 3 has a gentle bend.
Since there can be only one bent portion, ventilation resistance and air leakage can be reduced.

Further, the rotation axis of the first connecting portion 34 of the second tubular body 32 with respect to the central axis A1 is
By making it coincide with 1, the followability of the relative rotation of the second tubular body 32 to the twisting operation of the hand handle body 3 can be improved. That is, in the above-described embodiment, the center axis of the first tube 31 and the first axis of the second tube 32
Since the central axis of the connecting portion 34 coincides with the central axis of the connecting tube 4, the rotational moment of the first tube 31 due to the twisting of the grip portion 33 is reduced to the second rotational moment except for the frictional resistance between the cylindrical surfaces. It is configured so as not to act on the first connection portion 34 (the second tube 32) at all, so that it has excellent followability of the relative rotation of the second tube 32 to the twisting operation of the hand handle 3. Becomes

Here, the first connecting portion 34 of the second tube 32
Is preferably coincident with the central axis A1, but can withstand use even if it is inclined within the range of 0 ° to 30 °. That is, in some cases, the first tube 31
Even if it is configured that the rotational moment of the first connecting portion 34 (the second tubular body 32) acts to some extent, there is no problem in practical use. That is, the center axis of the first tube 31 is bent, and the center axis of the connection portion of the first tube 31 with the first connection portion 34 is set to be 30 degrees with respect to the center axis A1 of the connection tube 4.
It can be tilted within the range of °.

In addition, in the present embodiment, by providing two rotating parts, a rotating part corresponding to the twisting operation of the hand handle body 3 and a rotating part for preventing the suction hose 2 from being twisted,
An adverse effect due to the twist of the suction hose 2 can be reduced, and the vacuum cleaner main body 1 can also be excellent in pulling traveling performance and suction performance.

Further, by making each part of the handle body 3 easily detachable, assemblability and maintainability can be improved. Although not described above, the first tubular body 31 and the grip portion 33 of the handle body 3 at hand are connected to the lower case including a part of the first tubular body 31 and the grip portion 33, and the grip portion 33. By assembling an upper case, which is the remaining part of the above, and disposing a circuit board or the like between the lower case and the upper case, the assemblability can be further improved.

As described above, in the present embodiment, the second tube 32 is rotatably connected to the first tube 31 of the hand handle 3, which is simple and requires a small number of parts. With the structure of the hand handle body 3 that is easy to assemble and can be lightened, the presence of the suction hose 2 does not hinder the rotation of the mouthpiece by the operation of the hand handle body 3, or In addition, the presence of the suction hose 2 can be prevented from obstructing the cleaning of a low place. Furthermore, since the bending of the suction passage in the hand handle body 3 is made at one point, the ventilation efficiency and the noise suppression are excellent.

Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 10 is an exploded perspective view showing a second tube body and an end of a suction hose in a hand handle body of the vacuum cleaner according to the second embodiment of the present invention. In FIG. 10, the same components as those in the previous embodiment are denoted by the same reference numerals, and the description thereof will be omitted to avoid duplication (this is the same in the following third embodiment).

Although the first embodiment shown in FIGS. 1 to 9 has been described as a vacuum cleaner which operates the cleaner main body 1 by wireless remote control by transmitting an optical signal, the present invention is not limited to this. is not. For example, the handle body 3 and the cleaner main body 1 are mechanically and electrically connected to each other by a suction hose 2 provided with wiring, and the cleaner body 1 is operated by an operation switch of the handle body 3. Alternatively, the wiring is extended from the hand handle body 3 to the motor for driving the rotary brush provided in the mouthpiece 5 via the connection pipe 4 further provided with the wiring, and the operation of the drive motor is controlled by the hand handle. The present invention is also applicable to a vacuum cleaner operated by the operation switch of the body 3.

This will be described in detail with reference to FIG. In the present embodiment, a wiring ring 101 is provided on the inner peripheral surface of the connection ring 21 so as to rotatably hold a part of the outer periphery thereof, and a conductive ring band made of a conductive material The connection portion 103a of the first connection line 103 provided on the suction hose 2 is connected and fixed below the conductive ring band 102. Then, the wiring ring 101 and the end of the suction hose 2 are integrated so that the suction hose 2 can be rotated 360 ° with respect to the connection ring 21.

Further, the connecting ring 21 is detachably connected to the second connecting portion 35 of the second tube 32 for rotatably holding the suction hose 2 (wiring ring 101).
, A contact 104 a provided at an end of a second connection line 104 connected to the circuit board in the grip portion 33 is located on the conductive ring band 102 of the wiring ring 101. Is always in contact with That is, the contact 104 a is a detachable projection 105 a of the pressing piece 105 provided as a part of the second connection portion 35.
Thus, it is configured to be pressed onto the conductive ring band 102.

Therefore, the second connecting portion 35 of the second tubular body 32
On the other hand, regardless of the rotational position of the suction hose 2 (wiring ring 101), the first connection line 103 from the suction hose 2 and the second connection line 104 in the second tube 32 are At all times, the electrical connection is stably maintained.
Further, according to such a connection structure, after the connection ring 21 is inserted into the second connection portion 35 of the second tube 32, the contact between the conductive ring band 102 of the wiring ring 101 and the contact 104a is achieved. Therefore, connection can be performed with good workability and surely.

In the present embodiment (and the first embodiment), the suction hose 2 is rotatably attached to the connection ring 21. However, the suction hose 2 is fixed to the connection ring 21 and connected. The ring 21 is connected to the second tube 3
The second connection portion 35 may be rotatably attached to the second connection portion 35. In this case, the retaining piece 3 as described above is used.
8 or the like may be employed.

On the other hand, the first tube 32 described above
At the end of the connecting portion 34, a concave and ring-shaped wiring storage portion 106 is formed, and the second connection line 104 is partially stored in the wiring storage portion 106, and the second connection line 10
The end of 4 is guided to the circuit board in the grip portion 33 and connected to the circuit board. In the present embodiment, since the second connection line 104 is accommodated in the wiring accommodating portion 106, the second connection line 104 has a slack with a margin for rotation, and the second pipe 32 is provided with the first tube 32. Even if it rotates about 90 ° left and right with respect to the pipe body 31, the second connection line 10
Even if the second tube 32 and the first tube 31 rotate relative to each other, the electrical connection state by the second connection line 104 is stable even if the second tube 32 and the first tube 31 rotate relatively. Is to be kept. This is because, in the present embodiment, the hand handle body 3 is configured to be twisted approximately 90 ° to the left and right. With such a structure, it is possible to secure electrical connection even if the handle 3 is twisted without employing the wiring ring 101. In other words, by providing a margin for the connection by the length of the rotation operation range due to the twist of the handle body 3, it is possible to secure electrical connection with a simple configuration. Note that the connection structure using the wiring ring 101 and the like described above may be adopted as a connection portion between the second tube 32 and the first tube 31.

When electrical connection is made to the mouthpiece 5, a well-known connecting pipe for connecting the circuit board in the grip portion 33 and the mouthpiece 5 may be used.

FIG. 11 is a view showing a third embodiment of the present invention. In this embodiment, an auxiliary tool 111 is attached to the connecting pipe 4 so that the posture when the vacuum cleaner is stored is compact and stable. It is something to try.

FIG. 11B is a longitudinal sectional view of a main part showing the auxiliary tool 111 attached to the connecting pipe 4, and FIG.
FIG. 4 is a cross-sectional view of a main part showing the auxiliary tool 111 attached to the connection pipe 4. In the present embodiment, the auxiliary tool 111 is rotatably mounted at a predetermined position of the connection pipe 4. For example, in the present embodiment, the half bodies 111a and 111b of the auxiliary tool 111 having two split shapes are connected to each other by an appropriate means such as snap-in fitting or screwing. In addition, the auxiliary tool 111 is rotatable, and
It is mounted so that it cannot move in the axial direction.

In this embodiment, as shown in the side view of FIG. 11A showing the housed state of the vacuum cleaner, in the housed state, the cleaner main body 1 is set up and the rear part of the cleaner body 1 is placed on the floor. Connection pipe 4 in contact with the surface and in a vertical state
Of the auxiliary tool 111 attached to the cleaner body 1 is inserted into a locking hole (not shown) at the front of the cleaner body 1, whereby the cleaner body 1 and the connecting pipe 4 are adjacent to each other in a standing posture.・
In a state in which the suction hose 2, the handle body 3 at hand, the connecting pipe 4, and the mouthpiece 5 are integrally set,
It is configured so that the vacuum cleaner can be stored. Therefore, in the housed state of the vacuum cleaner of the present embodiment, the whole vacuum cleaner can be made vertically long, compact, and in a stable state so as not to be separated, so that the convenience of storage is excellent. It can be.

In this embodiment, since the auxiliary member 111 is attached to the connecting pipe 4, a low place such as under the bed as shown in FIG.
When cleaning is performed while lying close to the horizontal, the projecting side of the assisting tool 111 may be an obstacle. Therefore, in the present embodiment, the auxiliary tool 111 is configured to be rotatable as described above, and in the case of FIG. 9A, the protruding side of the auxiliary tool 111 is rotated, for example, 90 ° to the side. Thus, the projecting side of the auxiliary tool 111 can be prevented from contacting the floor surface.

[0052]

As described above, according to the present invention, in a vacuum cleaner in which a user can freely select a rotation angle of a suction body by operating a hand handle, the operation of the hand handle A simple and assembling structure that prevents the presence of the suction hose from hindering when the mouthpiece is rotated, or prevents the presence of the suction hose from hindering when cleaning low-height areas It can be realized as a good one and excellent in ventilation efficiency and noise suppression. The value of this type of vacuum cleaner is great.

[Brief description of the drawings]

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

FIG. 2 is an explanatory diagram showing an example of a use state in the vacuum cleaner according to the first embodiment of the present invention.

FIG. 3 is a perspective view of a handle at hand in the vacuum cleaner according to the first embodiment of the present invention.

FIG. 4 is an exploded perspective view of a handle at hand in the vacuum cleaner according to the first embodiment of the present invention.

FIG. 5 is a cross-sectional side view of the handle at hand in the vacuum cleaner according to the first embodiment of the present invention.

FIG. 6 is a side view of the handle at hand in the vacuum cleaner according to the first embodiment of the present invention.

FIG. 7 is a cross-sectional view of a holding portion of a grip portion of the handle at hand in the vacuum cleaner according to the first embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a state of cleaning the wall between the vacuum cleaner according to the first embodiment of the present invention and a conventional vacuum cleaner in comparison.

FIG. 9 is an explanatory diagram for comparing cleaning of a low-height place between the vacuum cleaner according to the first embodiment of the present invention and a conventional vacuum cleaner.

FIG. 10 is an exploded perspective view showing a second tube body and an end of a suction hose in a hand handle body of a vacuum cleaner according to a second embodiment of the present invention.

FIG. 11 is an explanatory diagram showing a housed state and the like of a vacuum cleaner according to a third embodiment of the present invention.

[Description of Signs] 1 Vacuum cleaner body 2 Suction hose 3 Hand handle body 4 Connection pipe 5 Suction body 21 Connection ring 31 First pipe body 32 Second pipe body 33 Grip part 33a Hold part 34 First connection part 35 First 2 connection part 51 suction body 52 joint pipe member

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-8-107862 (JP, A) JP-A-7-1224088 (JP, A) JP-A-8-289861 (JP, A) JP-A-10-108 328096 (JP, A) JP-A-11-187993 (JP, A) JP-A-11-239554 (JP, A) JP-A-11-146851 (JP, A) JP-A-11-262463 (JP, A) JP-A-5-161580 (JP, A) JP-A-5-84197 (JP, A) JP-A-10-137159 (JP, A) JP-A 7-12055 (JP, U) JP-A 41-5895 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) A47L 9/32

Claims (11)

(57) [Claims] 1. A cleaner body having a blower for sucking dust and dust, a suction hose attached to the cleaner body and communicating with a suction passage in the cleaner body, and a suction hose attached to the suction hose. A vacuum cleaner comprising a hand handle body communicating with a suction hose, a connection pipe attached to the hand handle body and communicating with the hand handle body, and a suction body attached to the connection pipe and communicating with the connection pipe. A first pipe body connected to the connection pipe, the first handle body having a center axis coinciding with a center axis of the connection pipe; and the first pipe body being integrated with the first pipe body. A grip portion having a portion extending upward so as to form a predetermined angle with the central axis of the tube, a first connection portion at one end, and a second connection portion at the other end;
And a bent second pipe body, wherein the central axis of the first connecting portion is the central axis of the connecting pipe and the central axis of the connecting pipe.
And the first connecting portion is rotatably connected to the first tube so as to coincide with a central axis of the first tube.
And the central axis of the second connecting part is the central axis of the first connecting part.
An electric vacuum cleaner , wherein the second connecting portion is connected to the suction hose at a predetermined angle downward with respect to a line . 2. A vacuum cleaner body with a blower for sucking dust挨, a suction hose in communication with the suction passage within the cleaner attached to the cleaner main body to the body, mounted on the suction hose A vacuum cleaner comprising a hand handle body communicating with a suction hose, a connection pipe attached to the hand handle body and communicating with the hand handle body, and a suction body attached to the connection pipe and communicating with the connection pipe. A first pipe body connected to the connection pipe, the first handle body having a center axis coinciding with a center axis of the connection pipe; and the first pipe body being integrated with the first pipe body. A grip portion having a portion extending upward so as to form a predetermined angle with the central axis of the tube, a first connection portion at one end, and a second connection portion at the other end;
And a bent second pipe body, wherein the central axis of the first connecting portion is the central axis of the connecting pipe and the central axis of the connecting pipe.
And the first connecting portion is rotatably connected to the first tube so as to coincide with a central axis of the first tube.
And the central axis of the second connecting part is the central axis of the first connecting part.
At a predetermined angle downward with respect to a line, the second connection portion is connected to the suction hose, and the second connection portion of the second tube and the suction hose are rotatably connected. An electric vacuum cleaner characterized by that. 3. The vacuum cleaner according to claim 1, wherein a center axis of the second connecting portion of the second tube is 90 ° to a center axis of the first connecting portion. A vacuum cleaner having an angle of 150 °. 4. The vacuum cleaner according to claim 1, wherein a cross section of the holding portion of the grip portion is formed in a rounded substantially inverted triangle. 5. The vacuum cleaner according to claim 1, wherein the suction body has a suction port for sucking dust and travels on a cleaning surface, and the suction port. A coupling pipe member that connects the main body to the connection pipe so as to be relatively rotatable, and a coupling pipe member that communicates the suction main body with the connection pipe; by rotating the hand handle body, A vacuum cleaner wherein a suction body is configured to rotate with respect to the connection pipe. 6. A cleaner body provided with a blower for sucking dust, a suction hose attached to the cleaner body and communicating with a suction passage in the cleaner body, and a suction hose attached to the suction hose. A vacuum cleaner having a hand handle body communicating with the suction hose, a connection pipe attached to the hand handle body and communicating with the hand handle body, and a suction body attached to the connection pipe and communicating with the connection pipe. The handle body has a first pipe connected at one end to a connection pipe, a first pipe connected to another end of the first pipe via a first connection section, and a second connection section connected to the other end of the first pipe body. A bent second pipe connected to the suction hose through the first pipe, a part of the second pipe being provided on the first pipe so as to form a predetermined angle with a center axis of the first pipe; And a grip portion extending upward, wherein the first The pipe and the second pipe constitute a dust passage for communicating the connection pipe and the suction hose, and the center axis of the first pipe and the center axis of the first connection portion are the connection pipe. Is provided on the extension of the central axis of
The second pipe body is rotatable about a center axis of the connection pipe, and the second connection section is configured such that a center axis of an end of a suction hose attached to the second connection section is a center of the connection pipe. The vacuum cleaner is characterized in that the suction hose is connected so as to have a predetermined angle below the axis. 7. A cleaner body provided with a blower for sucking dust, a suction hose attached to the cleaner body and communicating with a suction passage in the cleaner body, and a suction hose attached to the suction hose. A vacuum cleaner having a hand handle body communicating with the suction hose, a connection pipe attached to the hand handle body and communicating with the hand handle body, and a suction body attached to the connection pipe and communicating with the connection pipe. The handle body has a first pipe connected at one end to a connection pipe, a first pipe connected to another end of the first pipe via a first connection section, and a second connection section connected to the other end of the first pipe body. A second pipe body bent downward connected to the suction hose through the first pipe body, and a grip portion provided on the first pipe body and partially extending upward, the first pipe body And the second pipe body connect the connection pipe and the suction hose. To configure the path of Chiri挨, said first tube central axis and said first connecting portion central axis of the can, provided on the extension of the central axis of the connecting pipe,
The vacuum cleaner is characterized in that the second pipe is rotatably connected to the first pipe about a central axis of the connection pipe. 8. A cleaner body provided with a blower for sucking dust, a suction hose attached to the cleaner body and communicating with a suction passage in the cleaner body, and attached to the suction hose. A vacuum cleaner having a hand handle body communicating with the suction hose, a connection pipe attached to the hand handle body and communicating with the hand handle body, and a suction body attached to the connection pipe and communicating with the connection pipe. A first pipe having one end connected to an upper end of a connection pipe, a first pipe connected to another end of the first pipe via a first connection portion, and a second connection; A second tube body bent downward connected to the suction hose via a portion, and a grip portion provided on the first tube body, a part of which extends upward, The connection pipe and the suction hoe are connected by the pipe and the second pipe. The first connecting portion and the second connecting portion are formed such that their central axes are at a predetermined angle, and the central axis of the first tubular body is connected to the connection portion. An electric vacuum cleaner provided on an extension of a central axis of a pipe, wherein the second pipe body is rotatable about the central axis of the connecting pipe. 9. The vacuum cleaner according to claim 6, wherein a second connection portion of the second tube and the suction hose are rotatably connected. Vacuum cleaner to do. 10. The vacuum cleaner according to claim 6, wherein a central axis of the second connecting portion is at an angle of 90 ° to 150 ° with respect to a central axis of the connecting pipe. An electric vacuum cleaner characterized by having. 11. The vacuum cleaner according to claim 6, wherein the suction body has a suction port for sucking in dust and travels on a cleaning surface, and the suction port. A coupling pipe member that connects the main body to the connection pipe so as to be relatively rotatable, and has a joint pipe member that communicates the suction main body with the connection pipe; and by rotating the hand handle body, A vacuum cleaner wherein a suction body is configured to rotate with respect to the connection pipe.