JP2003052593A - Connecting pipe and vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an extension pipe improving the storability and operability. SOLUTION: A grip 41 grasped in performing cleaning is rotatably attached to the extension outer pipe 34 of an extension pipe 33. The extension pipe 33 is made telescopic by inserting an extension inner pipe 61 into the extension outer pipe 34. The grip 41 is rotated with respect to the extension outer pipe 34, and the extension inner pipe 61 is pushed and contracted with respect to the extension outer pipe 34. The length of the extension pipe 33 including the grip 41 becomes greatly expandable. The storability and operability of the extension pipe 33 and the grip 41 can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting pipe communicating with a cleaner body and an electric vacuum cleaner having the same.

[0002]

2. Description of the Related Art Conventionally, as an electric vacuum cleaner of this type, for example, the configurations shown in FIGS. 6 and 7 are known.

The electric vacuum cleaner 1 shown in FIGS. 6 and 7.
Includes a cleaner body 2 in which an electric blower (not shown) is housed. On the front side of the cleaner main body 2, a main body suction port 3 communicating with the electric blower is opened. An elongated cylindrical hose body 4 is detachably connected to the main body suction port 3.

The hose body 4 is provided with a flexible bellows-shaped hose portion 5, and the base end of the hose portion 5 is detachably connected to the main body suction port 3 of the cleaner body 2. . A hand operation unit 6 having a switch board (not shown) for controlling the drive of the electric blower is integrally connected to the tip of the hose 5. The hand operation part 6 is provided with a communication pipe part 7 integrally connected to the tip of the hose part 5 of the hose body 4, and this communication pipe part 7 is gripped when cleaning by the cleaner body 2. A grip portion 8 as a long-length grip portion is integrally provided so as to project outward toward the base end of the communication pipe portion 7.

Further, an extension pipe 11 as an expandable and contractable connection pipe is attached to the tip of the communication pipe portion 7 of the hand operation unit 6 in a communicated state. The extension pipe 11 is provided with an elongated outer pipe 12 having a slender cylindrical shape, the base end of which is detachably connected to the tip of the communication pipe portion 7 of the manual operation portion 6. As shown in FIGS. 6 (a) and 6 (b), the tip of the extended outer tube 12 is
A proximal end of an elongated inner tube 13 having a slender cylindrical shape having a smaller diameter than that of the extended outer tube 12 is inserted and connected so as to be capable of advancing and retracting.

A base end of a floor brush 14 which is a suction port for cleaning a surface to be cleaned such as a carpet is detachably connected to the tip of the extension inner tube 13. This floor brush 14
Is also detachably connected to the tip of the communication pipe portion 7 of the hose body 4. Further, the floor brush 14 has a suction opening (not shown) for sucking dust together with air. Further, as shown in FIG. 7, below the communication pipe portion 7 of the hose body 4, the tip of the communication pipe portion 7 and the extension inner pipe of the extension pipe 11 are provided.
A detachable gap nozzle 15 is attached to any of the tips of 13.

Then, the hose body 4 is connected to the main body suction port 3 of the cleaner body 2, the extension pipe 11 is connected to the hose body 4, and the floor brush 14 is connected to the extension pipe 11, and the hose body 4 is connected. An electric blower of the cleaner body 2 is driven by operating the hand operation unit 6 of 4. Then, dust is sucked together with the intake air from the suction port of the floor brush 14, and the suction air passes through the extension pipe 11 and the hose body 4 together with the dust and is sucked into the cleaner body 2 from the main body suction port 3.

[0008]

As described above, in the electric vacuum cleaner 1, the extension tube 11 can be expanded and contracted, but the tip of the hand operation portion 6 is extended with respect to the extension outer tube 12 of the extension tube 11. Inner pipe
When it is desired to make the length 13 shorter than the most contracted state, for example, when cleaning a desk or a gap in furniture, remove the extension pipe 11 from the manual operation unit 6 and attach the floor brush to the tip of the manual operation unit 6. 14 and the gap nozzle 15 must be installed.

For this reason, when the extension tube 11 is removed from the manual operation section 6, the extension tube 11 must be left on the floor or the like, so that the extension tube 11 can be attached or detached due to a change in the cleaning mode. It is very complicated and the operability of the extension pipe 11 is not so good.

In addition, the extendable extension tube 11 is generally larger in maximum length dimension than the cleaner body 2 or the hose body 4. For this reason, compared with the cleaner body 2 and the hose body 4 and the like, there is a problem in that the storability is not so good because it becomes an obstacle during storage.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a connecting pipe which is improved in storability and operability, and an electric vacuum cleaner provided with the connecting pipe.

[0012]

A connecting pipe according to a first aspect of the present invention is provided with a tubular body portion communicating with a cleaner body, and a mounting direction changeably attached to the body portion, which is gripped during cleaning. And a grip portion having a longitudinal shape.

Since the longitudinal grip portion to be gripped at the time of cleaning is attached to the tubular body portion communicating with the cleaner body so that the mounting direction can be changed, the grip portion is attached to the body portion. By changing the orientation, the length dimension including the body portion and the grip portion can be expanded and contracted to a greater extent, so that the storability and operability of the body portion and the grip portion are improved.

A connecting pipe according to a second aspect is the connecting pipe according to the first aspect, further comprising a hose portion having one end connected to the cleaner body, and the body portion integrally communicating with the other end of the hose portion. It is connected.

By changing the mounting direction of the gripping part with respect to the body part, the length dimensions of the body part and the gripping part are expanded and contracted to a greater extent, so that one end of the hose part connected to the cleaner body is connected to the other end. Even if the body portion is integrally connected for communication, the hose portion and the body portion do not lose their storability and operability. Furthermore, compared to the case where the hose portion and the body portion are connected and detached, the hose portion can be connected and removed. The manufacturability is improved because the configurations of the body and the body are simplified.

An electric vacuum cleaner according to a third aspect of the present invention includes the connection pipe according to the first or second aspect and a cleaner body that communicates with the connection pipe.

The vacuum cleaner body is communicated with the main body.
Alternatively, by changing the mounting direction of the gripping portion with respect to the body portion of the connecting pipe described in 2, the length dimension including the body portion and the gripping portion can be expanded and contracted to a larger extent. Storability and operability are improved.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION The structure of an electric vacuum cleaner according to a first embodiment of the present invention will be described below with reference to FIGS.

1 to 4, reference numeral 21 denotes an electric vacuum cleaner, and the electric vacuum cleaner 21 includes a cleaner main body 22 in which an electric blower (not shown) is housed, as shown in FIG. The cleaner main body 22 includes a main body case 23 whose front upper surface portion is opened, and the front upper surface portion of the main body case 23 is provided with a lid 24 which opens and closes the opening of the front upper surface portion. It is movably supported.

On the lower surface of the front side of the main body case 23 in the traveling direction, a swivel wheel (not shown) that can swivel is rotatably attached. A driven rear wheel 25 having a diameter larger than the outer diameter of the turning wheel is rotatably provided on both sides of the rear side of the main body case 23. As a result, this body case 23 is
The slewing wheel and the driven rear wheel 25 allow the floor surface (not shown) as a surface to be cleaned to travel.

On the other hand, a dust collection chamber (not shown) is formed in the front of the electric blower in the cleaner body 22, and a dust bag (not shown) is detachably attached to the dust collection chamber. This dust collecting chamber is covered with a lid 24 so as to be opened and closed from above. Further, a substantially cylindrical main body suction port 26 that communicates with the dust collection chamber is opened substantially at the center of the front side of the cleaner body 22. A substantially cylindrical extension cylinder portion 28 that extends the main body intake port 26 is connected to the main body intake port 26 so as to communicate therewith. On the upper side of the outer peripheral surface of the extension cylinder portion 28, an arch-shaped handle portion that allows the cleaner body 22 to be carried by gripping.
29 are provided.

Further, a base end as one end of a bellows-shaped hose portion 31 which is formed of flexible synthetic resin or the like and has an elongated substantially cylindrical shape can be detachably attached to the tip of the extension cylinder portion 28. Connected for communication. At the tip as the other end of this hose portion 31, an extension pipe 33 serving as an elongate and contractible elongated substantially cylindrical connecting pipe is provided.
The base ends of are connected for communication. This extension pipe 33 is connected to the hose portion 31.
Is provided with an extended outer tube 34 which is a slender substantially cylindrical body portion whose distal end is integrally connected and connected to the proximal end. This extension outer tube 34
Is connected to the main body suction port 26 of the main body 22 of the vacuum cleaner.

Then, as shown in FIGS. 2 (a), 2 (b) and 3, the extension outer tube 34 has a radial direction above the base end region on the outer peripheral surface thereof. A cylindrical bearing portion 35 having an axial direction toward which it is projected is provided. A plurality of, for example, two locking recesses 37a, 37b having circular openings are provided on the upper end surface 36 of the bearing portion 35 at a position separated from the outer peripheral edge of the upper end surface 36 by a predetermined distance. As shown in FIG. 3, the locking recesses 37a, 37b are separated from each other in the axial direction of the extension outer tube 34. Also, FIG.
As shown in (a) and FIG. 2 (b), the outer peripheral surface of the bearing portion 35 is provided with a fitting groove portion 38 having a concave groove shape in section along the circumferential direction of the outer peripheral surface.

Further, a longitudinal grip portion 41, which is a manual operation portion as a grip portion to be gripped at the time of cleaning by the cleaner body 22, is rotatably attached to the bearing portion 35 of the extension outer tube 34. There is. Further, a switch board (not shown) for selectively controlling the driving state of the electric blower in the cleaner body 22 is attached to the grip portion 41. further,
The grip portion 41 is arranged substantially along the axial direction of the extension outer pipe 34, and has a length dimension substantially equal to the length dimension of the extension outer pipe 34 in the axial direction.

The grip portion 41 is provided with the extension outer tube 34.
It has an arcuate grip portion 42 that bulges upward with respect to. This grip portion 42 has a smaller diameter than the extension outer tube 34,
It is formed in a tapered shape in which the diameter is gradually reduced from the base end toward the tip. As a result, the grip portion 42 is rotatably attached to the bearing portion 35 of the extension outer pipe 34 so that the attachment direction can be changed with respect to the extension outer pipe 34.

A cylindrical connecting base portion 43 projecting from the base portion of the grip portion 42 toward the outer surface of the extension outer tube 34 is integrally provided at the base end of the grip portion 42. The connection base 43 is rotatable in the radial direction with respect to the axial direction of the extension outer pipe 34, that is, along the lateral direction with respect to the upper side of the extension outer pipe 34. Also, on the back surface of this connection base 43, the extension outer pipe 34
A concave fitting concave portion 44 that is rotatably fitted to the bearing portion 35 is provided. Then, on the inner peripheral surface of the fitting recess 44,
A fitting convex portion 45 that projects along the circumferential direction of the inner peripheral surface is provided. The fitting convex portion 45 slides in the fitting groove portion 38 of the bearing portion 35 in the circumferential direction when the fitting concave portion 44 of the grip portion 41 is fitted to the bearing portion 35 of the extension outer tube 34. Then, they are rotatably fitted.

On the other hand, on the outer peripheral surface of the grip portion 42 facing the fitting recess 44, there is provided a mounting recess 46 opening along a direction opposite to the opening direction of the fitting recess 44. The mounting recess 46 has an inner diameter smaller than that of the fitting recess 44. The center point of the mounting recess 46 is eccentric with a predetermined distance from the center point of the fitting recess 44 along the axial direction of the extension outer tube 34 toward the base end side of the extension outer tube 34. There is.

Further, a through hole 48 is formed in the bottom surface 47 of the mounting recess 46 at the base end side of the grip portion 42.
A bearing concave portion 49 having a U-shaped cross section is provided at a position separated from the through hole 48 toward the front end side of the grip portion 42. Further, on the bottom surface portion 47 of the mounting recessed portion 46, which is a position separated from the bearing recessed portion 49 toward the tip side of the grip portion 42, an elastic body serving as a biasing means in which a steel wire is spirally wound. A spring body
One end of 52 in the axial direction is locked.

A clamp 53, which is a lock body as a fixing means, is attached to the mounting recess 46 of the grip portion 42, and a central portion of the rear surface of the clamp 53 projects toward both sides of the clamp 53. A substantially cylindrical shaft portion 54 is provided. The shaft 54 is rotatably fitted in the bearing recess 49 of the mounting recess 46. Further, in the tip region of the clamp 53, when the clamp 53 is rotated by the shaft portion 54 while the shaft portion 54 is rotatably fitted in the bearing recess 49, A locking projection 55 is provided which is fitted to one of the locking projections 55 of the bearing portion 35 of the extension outer tube 34 inserted through the through hole 48 to fix the rotation of the clamp 53 with respect to the extension outer tube 34. Has been.

On the back surface of the base end of the clamp 53,
A convex spring fitting convex portion 56 into which the other end of the spring body 52 in the axial direction is fitted is provided. In addition, this spring fitting convex part
The clamp 53 is rotated by pressing on the surface of the base end of the clamp 53 facing the 56, and the clamp 53 is engaged with one of the locking recesses 37a, 37b of the bearing portion 35 of the extension outer tube 34. Release the fitting of the locking projection 55 of the
On the other hand, a pressing portion 57 that allows the grip portion 41 to rotate is provided.

On the other hand, a cylindrical abutment base portion 58 projecting from the grip portion 42 toward the outer peripheral surface of the extended outer tube 34 is integrally provided at the tip of the grip portion 42 of the grip portion 41. The contact base portion 58 has an outer diameter dimension smaller than the outer diameter dimension of the connection base portion 43, and when the grip portion 41 is rotated around the connection base portion 43 as a rotation center, the extension outer pipe 34 is rotated. It contacts the upper side of the tip region on the outer peripheral surface. Specifically, this connection base
As shown in FIGS. 1 (b) and 2 (a), 43 is an extension outer tube 34
When the locking projection 55 of the clamp 53 is fitted into the locking recess 37b located on the base end side of the extension outer tube 34, the extension outer tube 34 is brought into contact with the upper side of the outer peripheral surface of the distal end region, as shown in FIG. As shown in FIG. 2 (b), when the engaging projection 55 of the clamp 53 is fitted into the engaging recess 37a located on the tip side of the extension outer tube 34, the base end of the extension outer tube 34 Further, it is located in the base end region along the axial direction of the extended outer pipe 34.

The base end of the extension inner pipe 61 having an outer diameter smaller than that of the extension outer pipe 34 is communicatively connected to the tip end of the extension outer pipe 34 in such a manner that the base end of the extension inner pipe 61 can be advanced and retracted. As a result, the extension tube 33 can be expanded and contracted by advancing and retracting the extension inner tube 61 with respect to the extension outer tube 34, as shown in FIGS. 1 (a) and 1 (b).

At the tip of the extension inner pipe 61, a base end of a floor brush 62 as a suction port body which is installed on a floor surface during cleaning and runs to suck dust on the floor surface with intake air. Is detachably connected. Further, at the tip of the extension inner pipe 61, a gap nozzle (not shown) having a mouth-shaped elongated suction port at the tip is also detachably connected.

Next, the operation of the first embodiment will be described.

First, the hose portion 31 is connected to the extension cylinder portion 28 connected to the main body suction port 26 of the cleaner body 22, and the floor brush 62 is connected to the tip of the extension inner pipe 61 of the extension pipe 33.

In this state, the extension amount of the extension inner pipe 61 with respect to the extension outer pipe 34 of the extension pipe 11 is adjusted, and then the extension pipe 33
Grasp the grip portion 42 of the grip portion 41 of the
Turn on the switch on the switch board.

Then, by cleaning the floor surface with the floor brush 62, dust on the floor surface is sucked together with the air from the intake port of the floor brush 62.

Then, the air sucked from the suction port of the floor brush 62 becomes an intake air, and this intake air is extended by the inner pipe 6
1, after sequentially passing through the inside of each of the extension outer pipe 34, the hose portion 31, and the extension cylinder portion 28, the dust is sucked into the dust collecting chamber of the cleaner body 22.

At this time, of the intake air taken into the dust collection chamber, only the dust taken in with the intake air is collected by the dust bag of the dust collection chamber.

Further, only the intake air from which dust has been removed by this dust bag is sent to the electric blower and becomes exhaust air,
This exhaust air is exhausted from the exhaust port of the cleaner body 22 to the outside.

Next, the operation of the first embodiment will be described.

First, in the case of cleaning a desk or a gap between furnitures, with the hose 31 connected to the extension cylinder 28 connected to the main body suction port 26 of the cleaner main body 22, as shown in FIG. ), The pressing portion of the clamp 53 of the grip portion 41 of the extension pipe 33
By pushing 57, the fitting of the locking concave portion 37a of the extended outer tube 34 by the locking convex portion 55 of the clamp 53 is released.

In this state, the grip portion 41 having the grip portion 42 projecting from the base end of the extension outer tube 34 toward the front side is rotated 180 degrees with respect to the extension outer tube 34, and the extension tube 33 is rotated. Is changed from the state shown in FIG. 1 (c) to the state shown in FIG. 1 (b).

After that, the pressing of the pressing part 57 of the clamp 53 of the grip part 41 is stopped, and the locking convex part 55 of the clamp 53 is fitted into the locking concave part 37b of the extension outer pipe 34, and the extension outer pipe Positioning and fixing of the rotation of the grip portion 41 with respect to 34.

Then, the grip 42 of the grip 41 is
The extension outer pipe 34 projects toward the distal end side along the axial direction of the extension outer pipe 34.

Further, with respect to the extension outer tube 34, an extension inner tube
61 is compressed and the extension tube 33 is moved from the state shown in Fig. 1 (b) to Fig. 1 (a).
Set to the state shown in.

After that, a gap nozzle is connected to the tip of the extension inner pipe 61 of the extension pipe 33.

In this state, the grip portion 41 of the extension pipe 33
The grip portion 42 is gripped, the switch on the switch substrate of the grip portion 41 is turned on, and the electric blower is driven.

Then, the gap nozzle connected to the tip of the extension pipe 33 is directed toward the gap on the desk or the furniture, and dust existing on the desk or the gap between the furniture is blown from the intake port of the gap nozzle to the air. Make it suck with.

Next, when cleaning the floor surface of a carpet or the like, the extension inner pipe 61 is extended with respect to the extension outer pipe 34 of the extension pipe 33, and the extension pipe 33 is changed from the state shown in FIG. Change to the state shown in (b).

After that, the pressing portion 57 of the clamp 53 of the grip portion 41 of the extension pipe 33 is pushed, and the locking convex portion 55 of the clamp 53 is pushed.
The fitting of the locking recess 37b of the extended outer tube 34 due to is released.

In this state, the grip portion 41 is rotated 180 degrees with respect to the extension outer tube 34 to change the extension tube 33 from the state shown in FIG. 1 (b) to the state shown in FIG. 1 (c).

After that, the pressing of the pressing portion 57 of the clamp 53 of the grip portion 41 is stopped, and the locking convex portion 55 of the clamp 53 is fitted into the locking concave portion 37a of the extension outer pipe 34. Positioning and fixing of the rotation of the grip portion 41 with respect to 34.

Thereafter, the clearance nozzle is removed from the tip of the extension inner tube 61 of the extension tube 33, and the floor brush 62 is connected to the tip of the extension inner tube 61.

In this state, the grip portion 41 of the extension pipe 33
The grip portion 42 is gripped, the switch on the switch substrate of the grip portion 41 is turned on, and the electric blower is driven.

A floor brush connected to the extension pipe 33
When the floor surface is cleaned by 62, the dust on the floor surface is sucked together with the air from the intake port of the floor brush 62.

As described above, according to the first embodiment, a general extendable extension tube has a larger maximum length dimension than the cleaner body, the hose body, etc. It gets in the way and storage is not very good.

Therefore, as shown in FIGS. 1 (a) and 1 (c), while pushing the pressing portion 57 of the clamp 53 of the grip portion 41 of the extension pipe 33, the extension outer pipe 34 of the extension pipe 33 is pressed against the extension outer pipe 34. The grip 41 is rotated by 180 degrees, and the extension outer pipe 34
On the other hand, by pressing the extension inner pipe 61, the extension pipe 33 is contracted to about one third.

Therefore, since the length of the extension pipe 33 can be expanded and contracted to a greater extent, the distal end of the hose portion 31 is integrally connected to the base end of the extension outer pipe 34 so that it cannot be detached. Also, when cleaning a furniture gap using a gap nozzle, the extension pipe 33 cannot be removed from the hose portion 31, so this extension pipe 33 is not left unattended for cleaning, and the extension pipe 33 changes due to a change in cleaning mode. Since the operation of attaching and detaching 33 is not necessary, the storability and operability of this extension tube 33 can be improved.

Further, since the extension pipe 33 is expanded and contracted by the rotation of the grip portion 41 of the extension pipe 33 with respect to the extension outer pipe 34 and the retraction of the extension inner pipe 61 from the extension outer pipe 34, the extension pipe 33 is extended to the hose portion 31. Even if the pipe 33 is integrally connected, these hose parts
The storage and operability of 31 and extension pipe 33 are not impaired,
Since the structures of the hose portion 31 and the extension pipe 33 can be simplified, the productivity of the hose portion 31 and the extension pipe 33 can be improved.

Next, the configuration of the second embodiment of the present invention will be described with reference to FIG.

The electric vacuum cleaner 21 shown in FIG. 5 is basically the same as the electric vacuum cleaner 21 shown in FIGS. 1 to 4,
The extension outer pipe 34, which is integrally connected to the hose portion 31, can be divided at an intermediate region in the axial direction of the extension outer pipe 34.

Then, the extension outer pipe 34 is extended in the intermediate region in the axial direction, that is, at a position separated from the bearing portion 35 of the extension outer pipe 34 toward the tip side of the extension outer pipe 34 by a predetermined distance. A dividing portion 71 that allows the outer tube 34 to be divided is formed. The dividing portion 71 is provided along the circumferential direction of the extension outer pipe 34, and the tip end of the extension outer pipe 34 on the base end side divided by the dividing portion 71 has a base of the floor brush 62 and a gap nozzle. The ends are detachably connected.

As a result, the extension outer tube 34 and the grip portion 41, which are located on the base end side after being divided by the dividing portion 71, constitute the hand operating portion 72, and the dividing portion 71 is used for division. Extension outer tube 34 and extension inner tube located on the rear tip side
The extension pipe 33 is constituted by 61.

Therefore, the electric vacuum cleaner 21 shown in FIG.
Is a state in which the extension tube 33 is connected to the hand operation section 72, while pushing the pressing section 57 of the clamp 53 of the grip section 41,
If the grip inner portion 61 is rotated 180 degrees with respect to the 34 and the extension inner tube 61 is pressed against the extension outer tube 34, the hand operation part
As 72 and extension pipe 33 shrink about 1/3,
It is possible to achieve the same effect as that of the electric vacuum cleaner 21 shown in FIG.

Furthermore, by removing the extension tube 33 from the manual operation section 72 at the dividing section 71, the extension outer tube 34 can be made shorter, so the usability during cleaning can be further improved.

In each of the above-mentioned embodiments, the grip portion 41 rotates along the radial direction of the extension outer tube 34 of the extension tube 33. However, by changing the direction of the grip portion 42 of the grip portion 41, It suffices that the extension pipe 33 can be expanded and contracted.

Further, the grip portion 41 can be positioned and fixed to the extension outer tube 34 only when the grip portion 41 is rotated 180 degrees with respect to the extension outer tube 34 of the extension tube 33. It suffices if the extension outer tube 34 can be positioned and fixed at a predetermined position when the portion 41 is rotated.

[0069]

According to the connecting pipe of the first aspect, by changing the mounting direction of the grip portion with respect to the body portion, the length dimension including the body portion and the grip portion can be expanded and contracted to a greater extent. Therefore, the storability and operability of the body portion and the grip portion can be improved.

According to the connecting pipe of claim 2, claim 1
In addition to the effect of the connecting pipe described above, the rotation of the gripping part with respect to the body part expands and contracts the length dimension of the body part and the gripping part to a greater extent, so that the body part is integrally connected to the other end of the hose part. However, the storage and operability of the hose portion and the body portion are not impaired, and the configurations of the hose portion and the body portion are simplified, so that manufacturability can be improved.

According to the third aspect of the electric vacuum cleaner, by changing the mounting direction of the gripping portion with respect to the body portion of the connecting pipe according to the first or second aspect, the body portion and the gripping portion are included. Since the length dimension can be expanded and contracted to a larger extent, it is possible to improve the storability and operability of the body and the grip.

[Brief description of drawings]

FIG. 1 is a perspective view showing a part of a first embodiment of an electric vacuum cleaner according to the present invention. (a) A perspective view in which the extension pipe is contracted (b) A perspective view in which the extension pipe is extended (c) A perspective view in which the grip portion of the extension pipe is rotated

FIG. 2 is a sectional view showing a part of the extension pipe of the same. (a) Sectional view in which the clamp of the grip section is fitted into the locking recess of the extension tube (b) Sectional view in which the fitting of the extension tube by the clamp in the grip section is released

FIG. 3 is an explanatory view showing a shaft support portion of the extension pipe.

FIG. 4 is a perspective view of the same electric vacuum cleaner.

FIG. 5 is a perspective view showing a part of a second embodiment of the present invention.

FIG. 6 is an explanatory view showing a part of a conventional electric vacuum cleaner. (a) Explanatory sectional view with extension pipe extended (b) Explanatory sectional view with extension pipe contracted

FIG. 7 is a perspective view of the same electric vacuum cleaner.

[Explanation of symbols]

21 vacuum cleaner 22 Vacuum cleaner body 31 Hose section 33 Extension pipe as connecting pipe 34 Extended outer tube as body 41 Grip as a grip

Claims (3)

[Claims] 1. A tubular body portion communicating with a cleaner body, and a mounting direction changeably attached to the body portion,
A connecting pipe, characterized in that the connecting pipe is provided with a long-shaped gripping portion that is gripped during cleaning. 2. The connecting pipe according to claim 1, further comprising a hose portion having one end connected to the cleaner body, and the body portion integrally connected to the other end of the hose portion. . 3. An electric vacuum cleaner, comprising: the connection pipe according to claim 1 or 2; and a cleaner body communicating with the connection pipe.