JP2002295757A - Hose band - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of a conventional hose band using a worm that troublesomeness and working efficiency decrease are caused by necessity of using a tool such as a screw driver when attaching and detaching the hose band. SOLUTION: By forming a finger hook 7 at the tip of a rotating shaft 6 extendingly provided at the head of the worm and at a position where it does not contact the hose when it is fitted around a hose with the maximum fittable diameter, the hose band can be attached and detached manually without a tool.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of fitting an annular band-shaped plate to the outer periphery of a hose, reducing the diameter of the band-shaped plate using a worm, and tightening the hose to form a tube or the like with the hose. It relates to a hose band for fixing a connection.

[0002]

2. Description of the Related Art When a hose is connected to a water pipe installed in a tank of a factory and the like, and a hose is connected to a water pipe, the pressure inside the hose increases and the hose expands in diameter. In addition, it is necessary to prevent leakage of fluids and dropout at the connection part. Therefore, in order to securely fix the hose to the water distribution pipe, a hose band that is fitted and fastened to the outer periphery of the hose is used. There are various types of hose band tightening mechanisms, such as those that use a worm, those that use the elasticity of an annular metal plate, and those that maintain the reduced diameter state by ratchet teeth meshing with each other. When the pressure in the hose is relatively high, for example, when a fluid contained in the hose is pressure-fed, a hose band using a worm having high fastening strength is often used.

[0003] As a hose band using the above-mentioned conventional worm, for example, one disclosed in Japanese Patent Application Laid-Open No. 55-82890, the both ends of a band-like plate made of metal or the like are overlapped with each other to form an annular shape. A worm is placed on a tangent line passing through the overlapped portion, and both ends of the worm are rotatably held by a housing fixed to one of the ends of the belt-shaped plate, which is located inside, and are located outside. The other end is provided with a groove for engaging with the worm, and when the worm is rotated in a state where the strip is mounted so as to surround the outer peripheral surface of the hose, the strip tightens the hose. The hose band is fitted around the outer periphery of the hose, and the worm is rotated in the tightening direction with a tool to reduce the diameter of the band-shaped plate, and the hose is tightened to securely fix the hose to a water pipe or the like. In addition, the hose band used for such an application has a groove formed with an end face of the worm for engaging a driver. Then, the driver engages with this groove to rotate the worm. Further, once such a hose band is tightened, the hose is often left in a tightened state for a long period of time.

[0004]

When performing inspection and repair of a factory tank or the like, there is a case where the fluid in the tank is temporarily replaced with a temporary tank. Therefore, the hose replacement work frequently occurs. However, in the above-mentioned conventional hose band, once attached, it is used for a long period of time, so frequent replacement work is not considered. Therefore, there has been a trouble that the worker has to repeat the work of attaching and detaching the hose band using the driver every time the replacement is performed.

[0005] When the attaching / detaching operation is further repeated, the groove provided on the end face of the worm for engaging the driver gradually expands and deforms, so that the rotational motion of the driver becomes unstable and the tightening operation takes time. However, there has been a problem that the working efficiency is reduced.

Further, if oil or dust adheres to a groove provided on the end face of the worm for engaging the driver,
Since the driver slips off the groove or floats without engaging the groove, there has been a problem that the reliable rotation of the driver is hindered.

In addition, in a factory, workers usually wear gloves during work, and there are many relatively dark places in the factory. The above attachment / detachment work, which requires a fine operation of engaging the provided groove and rotating the driver on the rotation axis of the worm so as not to disengage the driver, is not suitable for a work environment such as a factory. .

In view of the above problems, an object of the present invention is to provide a hose band using a worm that can be easily attached and detached in a work environment in which hose replacement is frequently performed.

[0009]

In order to solve the above-mentioned problems, a hose band according to the present invention is formed by overlapping both ends of a band-like plate made of metal or the like with each other to form an annular shape. A worm is placed on the line, and both ends of the worm are rotatably held in a housing fixed to one end located inside of both ends of the strip-shaped plate,
A groove for engaging with the worm is provided at the other end located on the outside, and when the worm is rotated in a state in which the belt is attached so as to surround the outer peripheral surface of the hose, the worm rotates in a hose band in which the band is tightened with the hose. While the moving shaft extends along the above tangent line, a finger hook portion is formed at a predetermined angle with respect to the axis of the rotating shaft at a portion not in contact with the hose while being attached to a hose having a maximum diameter that can be mounted. It is characterized by having done.

[0010] According to this configuration, the worm can be rotated only by manually rotating the finger hook portion without using a tool such as a screwdriver in the hose replacement work, and the hose band can be securely attached and detached. Becomes possible.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, reference numeral 1 denotes a belt-like plate formed by laminating an end portion 1a and an end portion 1b of a metal plate. The end 1a is located outside and the end 1b is located inside. Equally spaced grooves 1c are perforated in the band-shaped plate 1 so as to engage with the worm 2. End 1 of strip 1
The worm 2 is placed on a tangent line passing through a portion where a and the end 1b overlap. A cylindrical housing 3 for rotatably holding both ends of the worm 2 is provided at an end 1 of the band-shaped plate 1.
a and the end 1b are provided at a portion where they overlap each other, and are fixed to the inner end 1b. The head 4 of the worm 2 is formed larger than the inner diameter of the housing 3.
It is exposed from. The head 4 is formed with a tapered portion 5. The diameter of the small end of the tapered portion 5 is substantially the same as the diameter of the head 4. A rotation shaft 6 extends on the tangent line through which the worm 2 passes from the tapered portion 5. A finger hook 7 is formed at the tip of the rotating shaft 6 to intersect perpendicularly with the rotating shaft 6.

When the finger hook 7 is manually rotated in the tightening direction of the worm 2, the strip 1 engaging with the worm 2 is pulled out toward the outer end 1a, and the hose band is reduced in diameter. The direction in which the strip-shaped plate 1 pulled out toward the outer end portion 1a is drawn out along the tapered portion 5 is bent downward in the drawing, and follows the annular band-shaped plate 1.

Referring to FIG. 2, a hose h is connected to a water distribution pipe p such as a tank. Even when the hose band according to the present invention is mounted on the hose h having the largest diameter that can be mounted, the finger hanging portion 7 is formed at a position not in contact with the hose h. Without contact, a sufficient working space is ensured, and the hose band can be easily manually attached and detached.

[0014]

As is apparent from the above description, according to the present invention, in the hose band using the worm, the hose band can be attached and detached only by manually rotating the finger hook without using a tool. For example, in a work environment where frequent hose replacement work such as inspection and repair of a tank in a factory is performed, work efficiency is improved as compared with a conventional hose band.

[Brief description of the drawings]

FIG. 1 is a perspective view of a hose band according to the present invention.

FIG. 2 is a view showing a state in which the hose band according to the present invention is attached to a hose connected to a water distribution pipe.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 strip-shaped plate 2 worm 3 housing 4 worm head 5 tapered portion 6 rotating shaft 7 finger hook

Continuation of the front page F term (reference) 3J022 DA12 EA42 EB14 EC22 ED25 GA03 GA12 GA21 GB43 GB45 GB55

Claims (1)

[Claims] A worm is placed on a tangential line passing through the overlapped portion of both ends of a strip made of metal or the like, and the worm is placed on both ends of the strip. Among them, a housing fixed to one end located inside was rotatably held, and a groove engaged with the worm was provided at the other end located outside, and a band-shaped plate was attached so as to surround the outer peripheral surface of the hose. When the worm is rotated in this state, the belt-like plate tightens the hose.In the hose band, the rotation axis of the worm extends along the above tangent line, and contacts the hose with the hose having the maximum diameter that can be mounted. A hose band, wherein a finger hook portion extending at a predetermined angle with respect to the axis of the rotating shaft is formed in a portion not to be provided.