JPH05329453A - Cleaner for internal surface of bend - Google Patents

Abstract

PURPOSE:To straighten or bend the tip of a cleaner and to easily insert the cleaner into a bend to pass it through by providing a flexible external pipe and an internal rope which is slidably inserted into the external pipe, bending one end of the internal rope and simultaneously providing a handle on the other end. CONSTITUTION:A bend internal surface cleaner 1 has a flexible external pipe 2 and an internal rope 3 slidably inserted into the external pipe and one end of the internal rope 3 is bent and simultaneously a handle 3b is provided on the other end. When the handle 3b is pulled for use, the bent one end of the internal rope 3 projected from the external pipe 2 is retracted. Then, when the cleaner 1 is inserted and pushed into piping, attached matter to the internal wall surface of the piping is removed. When the tip runs against the bend of a drainpipe, the cleaner 1 is a little retreated, and then, when the handle 3b is pushed, the internal rope 3 is projected from the external pipe 2 forward in the direction in which the cleaner is headed. When the cleaner is turned around the axis in that state to direct it toward the bend direction, the further heading is made to pass the cleaner through the bend part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to cleaning for removing deposits and clogging accumulated on the inner surface of thin and long pipes, such as pipes from a wash basin or sink at home to sewage. It is about ingredients.

[0002]

2. Description of the Related Art Generally, as a tool for cleaning the inner surface of such a pipe, a stranded wire made up of several wires bundled with a small brush is used.

[0003]

However, since the drainage pipe is thin and its path is bent,
It is difficult to pass a cleaning tool into the pipe. Therefore, in the past, the tip of the tool was bent slightly and used, but the stranded wire of the tool buckled due to being caught by the deposit on the inner surface of the tube, making it difficult to pass through the pipe.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned inconvenience and to obtain an inner cleaning tool improved so that a straight line portion and a curved portion of a drainage pipe can be smoothly inserted. It is characterized in that it has a flexible outer tube and an inner cable slidably inserted therein, one end of the inner cable is bent, and a handle is provided at the other end.

[0005]

When the handle connected to the inner cable is pulled, the curved end of the inner cable projecting from the outer tube is pulled into the outer tube. Therefore, when the cleaning tool is inserted into the pipe and pushed in by hand, the adhered matter adhering to the inner wall surface of the pipe is removed. When the tip of the outer pipe hits the bent portion of the drainage pipe, the cleaning tool is slightly retracted and the handle is pushed to cause the inner cord to project forward from the outer pipe in the traveling direction. If the cleaning tool or inner cable is rotated around its axis in that state, when it goes in the bending direction of the pipe, further progress is possible, so pull the handle little by little to retract the inner cable.ゝ When the outer tube is advanced, it passes through the bend.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. In the figure, reference numeral 1 is a curved pipe cleaning tool. The main part of the cleaning tool 1 is an outer tube 2 that is waterproof and an inner cable 3 that is inserted into the outer tube 2.
And various accessories are attached to them.

As shown in FIG. 3, the outer tube 2 is formed by spirally winding a bookkeeping steel plate or steel wire into a tubular shape, and has a coating 2a made of synthetic resin on the outer surface thereof. Therefore, the outer tube 2
Has high rigidity in the axial direction and is given flexibility, and prevents contact with water by the coating 2a,
It doesn't rust. 2b and 2c are outer tubes 2
It is a terminal fitting that closes the end of.

The inner cable 3 is formed by twisting a single wire or a plurality of piano wires, and in some cases, its outer surface is coated with a synthetic resin. One end of the inner cable 3 is bent over a length of about 40 mm with a radius of about 50 mm, and a retaining tool 3a for retaining is fixed to the end by soldering or brazing, and the other end is a handle. 3b is likewise attached by soldering or brazing. Note that, in this embodiment, the locking tool 3a also serves as a blade tip piece for scraping off the adhered matter adhering to the inside of the pipe.

A stopper member 3c is provided inside the handle 3b.
Are fixed by brazing or soldering.
That is, one of the terminal fittings 2b is provided with a large diameter portion and a small diameter portion on the outer circumference, and a step portion 2d is formed between them. Further, the stopper member 3c is formed by bending a strip-shaped steel plate, and the legs thereof are further bent inward to form locking claws 3d. It should be noted that the end portion of the locking claw 3d is formed with a fitting hole formed of two arcs so as to fit into the small diameter portion. Therefore, when the handle 3b is pulled upward from the state of FIG. 2, the locking claw 3d of the stopper member 3c is pulled.
Slides on the small-diameter portion of the terminal fitting 2b and comes into contact with the stepped portion 2d to prevent further movement.

A coil spring 3e is interposed in a compressed state between the locking tool 3a attached to the inner cable 3 and the other terminal fitting 2c, and the elastic force of the locking tool 3a causes the locking tool 3a to move from the terminal fitting 2c. It is biased in the direction to pull it apart. In this embodiment, the slide metal fitting 3 is provided between the locking tool 3a and the terminal metal fitting 2c.
f is slidably fitted, and the coil spring 3e is composed of two pieces interposed therebetween.
Further, although one slide fitting 3f is used in this embodiment, it goes without saying that two or more slide fittings may be used.

As shown in FIG. 5, the end faces of the engaging member 3a, the other end fitting 2c, or the slide fitting 3f are relatively chamfered, and the inner diameter of the coil spring 3e is fitted therein. There is. Therefore, the coil spring 3e does not come off from those members, and therefore, the coil spring 3e and the inner cable 3 are kept substantially coaxial even when they are bent. That is, even when the inner cable 3 is bent, the coil spring 3
The e is prevented from bulging outward due to the compressive force. In this embodiment, only one slider 3f is used, but two or more sliders 3f may be provided and coil springs 3e may be interposed between them.

Next, a method of using the cleaning tool 1 described above will be described. First, the handle 3b connected to the inner cable 3 is fully pulled to bring the locking claw member 3d into contact with the step 2d. As a result, the curved one end of the inner cable 3 is drawn into the outer tube 2. In this state, the tip of the cleaning tool 1 extends straight with the coil spring 3e fully bent as shown in FIG.

Then, the cleaning tool 1 is inserted into the drain pipe W from the side of the locking tool 3a through the drain of the washbasin or sink. Outer tube 2
When the tip of the bump hits the bent portion B of the drain pipe, or
At around that time, the handle 3b is pushed to cause the inner cable 3 to project from the outer tube 2. Since the inner cable 3 is bent in advance, the inner cable 3 or the outer tube 2 is rotated around its axis to search the bending direction of the pipe. When the tip of the inner cable 3 detects the bending direction of the pipe, the cleaning tool 1 can move.
Then, the cleaning tool 1 is slightly advanced, and when the tip of the cleaning tool 1 enters the bent tube, the handle 3b is pulled again to retract the inner cord 3 into the outer tube 2. When there are a plurality of curved pipes in the pipe, the bent portions are successively passed in this manner.

In the above-mentioned embodiment, the metallic tool 3a is provided at the tip of the cleaning tool 1 so as to scrape off the deposits on the inner surface of the pipe. It is not indispensable in the configuration of the, and instead of this, the inner line 3
You may make it attach the thing made into the small wire brush shape to the front-end | tip.

[0015]

As described above, according to the present invention, the cleaning tool 1 is provided with the flexible outer tube 2 and the inner cable 3 slidably inserted therein, and one end of the inner cable 3 is curved. By providing a handle on the other end and sliding the inner cable 3 in the axial direction, the tip of the cleaning tool can be straightened or bent.
There is an effect that it can be easily inserted and passed through the curved pipe.

[Brief description of drawings]

FIG. 1 is a side view of a cleaning tool 1 according to the present invention.

FIG. 2 is a side view corresponding to FIG. 1 showing a state in which the tip portion is bent.

FIG. 3 is a partially broken external view showing a fitted state of an outer pipe 2 and an inner cable 3.

FIG. 4 is a cross-sectional view showing a state in which the tip of the cleaning tool 1 is inserted into the pipe.

FIG. 5 is an enlarged side view of part A in FIG.

[Explanation of symbols]

 2 ... Outer pipe 3 ... Inner cable 3c ... Stopper member 3e ... Coil spring

Claims (2)

[Claims] 1. An inner surface cleaning of a curved pipe having a flexible outer tube and an inner cable slidably inserted therein, and bending one end of the inner cable and providing a handle at the other end. Ingredient 2. A flexible outer tube covered with a waterproof coating and an inner cord made of a hard stranded wire which is inserted into the outer pipe and slidably supported therein. A tool for cleaning a curved pipe, in which a locking member is fixedly provided, a handle is coupled to the other end, and a stopper member for restricting the retracted end of the handle is provided between the handle and the outer pipe.