JP3214591B2 - Vacuum cleaner connecting pipe - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting pipe for a vacuum cleaner.

[0002]

2. Description of the Related Art As shown in FIG. 7, for example, a connecting pipe of a conventional vacuum cleaner is a first connecting pipe connected to a suction tool.
11 and the second connection pipe 12 connected to the main body of the vacuum cleaner were fitted and connected. Accordingly, when cleaning a corner or the like of a room, the first connecting pipe 11 is detached from the second connecting pipe 12, and the gap nozzle 16 is fitted to the second connecting pipe 12 and connected instead. Was. However, it is troublesome for the user to remove the first connection pipe 11 and to fit and connect the gap nozzle 16 to the second connection pipe 12 instead of removing the first connection pipe 11 every time a corner or the like of the room is cleaned. There was a problem that caused it.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a connecting pipe which does not need to be replaced with a gap nozzle every time a corner of a room is cleaned.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a first connecting pipe connected to a suction tool, and a first connecting pipe connected to the first connecting pipe and attached to a vacuum cleaner main body. A connected second connecting pipe, a movable plate opposingly rotatably provided at the end of the second connecting pipe, and the movable plate and the second connecting pipe for urging the movable plate in a closing direction. A nozzle having a smaller diameter than that of the second connecting pipe is formed at the distal end of the second connecting pipe by the movable plate by removing the first connecting pipe. And Also, a step is provided on the outer periphery of the tip of the second connection pipe, and a semicircular protrusion protruding outward is formed at the tip of the step, and the base end of the movable plate is fitted to the protrusion. It is characterized in that it is formed in a semicircular shape that fits. Further, the movable plate is formed in a semicircular shape having a smaller diameter at the distal end than at the base. Further, the movable plate is formed in a substantially U-shape in which a distal end portion has a smaller diameter than a base end portion. Also, the base end of the movable plate is formed in a substantially V shape.
Further, both sides inside the substantially V-shaped portion are formed in a tapered shape by expanding. Furthermore, at the tip of the moving plate,
It is characterized by being planted.

[0005]

According to the above construction, when cleaning a corner or the like of a room, by removing the first connecting pipe connected to the suction tool, the tip of the second connecting pipe connected to the main body of the vacuum cleaner is removed. The connecting pipe of the cleaner can form a nozzle suitable for the corner or the like.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings. 1, 2, 3, 4, 5, and 6, reference numeral 1 denotes a first connecting pipe connected to a suction tool,
Reference numeral 2 denotes a second connection pipe connected to the main body of the vacuum cleaner, 2a denotes a holding portion provided with an insertion hole 2b for a movable plate, which will be described later, and holds the movable plate, and 3 denotes an outer diameter of a tip portion of the second connection pipe 2. A substantially semi-circular groove for providing a spring, which will be described later, is formed on the outer peripheral surface of the step portion 3, and a semi-circular convex portion protruding outward at the tip end side of the step portion 3. 5 is formed.
Reference numeral 4 denotes a circular material, which is formed in a substantially elliptical shape, as shown in FIG. 5, the outer diameter dimension is a> b, and a parallel portion 4a is formed in the a-dimension portion, which will be described later corresponding to the parallel portion 4a. A spring 4b is positioned in the circumferential direction by a groove to be formed, and 4b is an abutting portion when the spring 4 is formed. Since the spring 4 has the substantially elliptical shape, when it is attached to a groove, which will be described later, provided in the circular step portion 3, a force for urging in the direction of the dimension b acts. The spring 4 is connected to the step 3
And a semicircular groove formed in a substantially V-shaped portion forming a base end of a movable plate described later. Reference numeral 6 denotes a movable plate which is provided at the distal end of the second connecting pipe 2 so as to be rotatable opposite to each other, and is formed in a semicircular or substantially rectangular shape having a base end portion having a larger diameter than the distal end portion.
Reference numeral 7 denotes a substantially V-shaped base end portion formed on the movable plate 6, which forms a semicircular portion corresponding to the convex portion 5, and this semicircular portion is rotatably fitted to the convex portion 5. A semicircular groove corresponding to the semicircular groove formed in the step portion 3 is provided on the outer inner surface of the substantially V-shaped portion. Reference numeral 8 denotes a second joint formed by tapering both sides of the movable plate 6; Is a flocking provided at the tip of the movable plate 6, and 11 is a gap between the movable plate 6 and the first connecting pipe. In the above configuration,
When the first connecting pipe 1 and the second connecting pipe 2 are fitted and connected, the outer piece of the substantially V-shaped portion of the base end 7 comes into contact with the first connecting pipe 1 and 1 The joining portion 9 is joined, the movable plate 6 is separated and opened in a circular or substantially rectangular shape. When the vacuum cleaner is operated, dust is sucked from the suction tool, and the flocking 10 allows the dust to flow into the gap 11. To prevent

In the above structure, when cleaning a corner or the like of a room, the first connecting pipe 1 is removed, so that the movable plate 6 is moved by the spring 4 and the second joint portion 8 is moved. Are joined, the outer diameter of the movable plate 6 is tapered, and the tip of the movable plate 6 is opened in an elliptical shape or a substantially rectangular shape, and the corner of the room is cleaned at the tip of the second connecting pipe 2. A suitable nozzle is formed. This eliminates the inconvenience of removing the first connection pipe 1 and fitting the gap nozzle to the second connection pipe 2 instead of removing the first connection pipe 1 every time a corner of the room is cleaned.

[0008]

As described above, according to the present invention, every time a corner or the like of a room is cleaned, the first connecting pipe connected to the suction tool is removed, and the gap nozzle is replaced with the vacuum cleaner main body. The connection pipe of the vacuum cleaner does not need to be fitted and connected to the second connection pipe connected to the second connection pipe.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a vacuum cleaner according to the present invention when a connection pipe is connected.

FIG. 2 shows a connecting pipe according to the invention, AA shown in FIG.
It is sectional drawing.

FIG. 3 shows a connecting pipe according to another embodiment shown in FIG.
FIG.

FIG. 4 shows a connecting pipe according to the invention, BB shown in FIG. 1;
It is sectional drawing.

FIG. 5 is a plan view of a spring according to the present invention.

FIG. 6 is a sectional view of the vacuum cleaner according to the present invention when a connection pipe is removed.

FIG. 7 is a cross-sectional view of a connection pipe of a conventional vacuum cleaner.

[Description of Signs] 1 First connection pipe 2 Second connection pipe 2a Holding section 2b Insertion hole 3 Step 4 Spring 4a Parallel section 4b Butt section 5 Convex section 6 Movable plate 7 Base end section 8 Second joint section 9 First joint Part 10 Flocked 11 Gap a Small outer diameter of spring b Large outer diameter of spring

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A47L 9/24 A47L 9/02 A47L 9/04

Claims (7)

(57) [Claims] 1. A first connecting pipe connected to a suction tool, and a second connecting pipe connected to the first connecting pipe and connected to a vacuum cleaner main body.
A connecting pipe, a movable plate provided rotatably opposite to the tip of the second connecting pipe, and a movable plate provided between the movable plate and the second connecting pipe so as to urge the movable plate in a closing direction. An electric cleaner comprising a spring, wherein the first connecting pipe is removed, so that a nozzle having a smaller diameter than the second connecting pipe is formed at the distal end of the second connecting pipe by the movable plate. Connecting pipe of machine. 2. A step is provided on the outer periphery of the tip end of the second connection pipe, and a semicircular protrusion protruding outward is formed at the tip of the step, and the base end of the movable plate is made to have the same protrusion. The connecting pipe of a vacuum cleaner according to claim 1, wherein the connecting pipe is formed in a semicircular shape to be fitted to the portion. 3. The connecting pipe of a vacuum cleaner according to claim 1, wherein the movable plate is formed in a semicircular shape having a smaller diameter at a front end portion than at a base end portion. 4. The connecting pipe of a vacuum cleaner according to claim 1, wherein said movable plate is formed in a substantially U-shape having a tip portion having a smaller diameter than a base end portion. 5. The connecting pipe of a vacuum cleaner according to claim 1, wherein a base end of said movable plate is formed in a substantially V shape. 6. The connecting pipe of a vacuum cleaner according to claim 5, wherein both sides inside the substantially V-shaped portion are formed in a tapered shape by expanding. 7. The connecting pipe of a vacuum cleaner according to claim 1, wherein a hair is implanted at a tip of the moving plate.