JPH09229292A - Flexible tube body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve durability of a flexible tube body to be used for a microphone stand, etc. SOLUTION: In a flexible tube body in which one end of a flexible tube 10 capable of being freely tilted is fitted in and fixed to a supporting tool 16 formed into a pipe shape, an integrated supporting film 20 coherently covers the connecting parts of the flexible tube 10 and the supporting tool 16 over the outer surface of the flexible tube 10 and the outer surface of the supporting tool 16 in the connecting parts of the flexible tube 10 and the supporting tool 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible tube body used as a stand of a microphone or a support body of an illuminating body.

[0002]

2. Description of the Related Art A flexible tube is constructed so that it can be bent in any direction and the posture can be maintained at the bent position. Although there are various types of configurations, for example, there is a configuration in which a mild steel wire having a triangular cross section is wound around the outer circumference of a spring body formed of hard steel wire so as to fill the gap portion of the spring. This flexible tube is used for bending it in any direction like a lighting fixture stand and using it.
It is widely used for products that use in this way.
FIG. 2 shows an example in which the flexible tube 10 is applied to a microphone stand.

In the case of producing a flexible tube, it is formed as a single elongated body and used by cutting it into a required length according to the product. When used for a product, as in the stand shown in FIG. 2, one end of the flexible tube 10 is fixed to the support 12 and the other end of the flexible tube 10 is a free end. In the illustrated example, the microphone 1 is provided at the other end.
4 is attached, and the angle of the microphone 14 can be freely changed.

There are various methods for fixing the flexible tube 10 to the support 12 or the like, but as shown in FIG. 2, one end of the flexible tube 10 is fixed to a supporting member 16 as shown in FIG. Is common. The support 16 is a metal member formed in a pipe shape, and the end of the flexible tube 10 is fitted into the support 16 and the end of the support 16 is caulked to prevent the flexible tube 10 from coming off.

[0005]

By the way, in a microphone stand or the like to which the flexible tube 10 is attached, since the flexible tube 10 is frequently bent and handled, cracks occur at the portion where the flexible tube 10 is attached to the support 16 as it is used. There was a problem that it was damaged and damaged.

As described above, the flexible tube 1
0 is fixed to the support 16 by caulking. The support 16 is a rigid body, so that the flexible tube 10 can be bent at any part. Therefore, the bending force when the flexible tube 10 is bent is concentrated on the mounting portion of the support 16. As a result, the caulked portion of the support 16 may be damaged.

The present invention prevents a supporting tool for supporting a flexible tube from being damaged by a stand or the like using such a flexible tube, improves the durability of the flexible tube supporting the flexible tube, and improves reliability. It is intended to provide a flexible tube body which is easy to manufacture, as well as being provided as a product which is expensive and easier to handle.

[0008]

The present invention has the following constitution in order to achieve the above object. That is, in a flexible tube body in which one end of a tiltable flexible tube is fitted and fixed in a support formed in a pipe shape,
The connecting portion between the flexible tube and the support is covered with an integral support film in close contact with the outer surface of the flexible tube and the outer surface of the support between the flexible tube and the support. . The support film is preferably a heat-shrinkable tube formed in a cylindrical shape and heat-shrinked. Further, it is particularly effective that the support film is made of polyester resin. Further, the supporting film is provided along the entire length of the flexible tube together with the connecting portion.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below. FIG. 1 shows an example of a flexible tube body applied to a microphone stand as one embodiment of the flexible tube body according to the present invention. Also in this embodiment, the flexible tube 10 is used as in the conventional example.
One end side of which is fitted into a support tool 16 formed of a metal pipe,
The flexible tube 10 is obtained by crimping the end of the support tool 16.
Is fixedly supported. The support 16 is fixed and supported on the upper portion of the support 12, and the microphone 14 is fixed to the other end of the flexible tube 10.

Reference numeral 20 is a support film in which the outer surface of the flexible tube 10 and the outer surface of the support 16 are covered with the support 16 while straddling the connecting portion between the flexible tube 10 and the support 16. The support film 20 is formed of an integral body of resin film, and the flexible tube 1
0 and the outer surface of the support 16 are provided so as to be in close contact with each other. The support film 20 includes the flexible tube 10 and the support 16
The flexible tube 10 is provided so as to cover and reinforce the connecting portion of the flexible tube 10 and the flexible tube 10 so as to be movably supported.

In practice, since the flexible tube 10 is mounted by inserting the end portion into the support tool 16, the outer diameter of the support tool 16 is larger than that of the flexible tube 10. Therefore, the flexible tube 10 and the support 1
Although the connecting portion with 6 has a step, the supporting film 20
Is closely adhered even at this step portion following the step. In this way, the support film 20 is attached to the flexible tube 10.
By covering the connecting portion between the support 16 and the support tool over a predetermined range, the bending force when the flexible tube 10 is bent by the holding force of the support film 20 is dispersed in the range covered by the support film 20, and the flexibility is increased. It is possible to suitably prevent the bending force from locally acting on the connecting portion between the tube 10 and the support 16.

That is, the flexible tube 10 is held so as not to bend sharply at the portion covered with the supporting film 20, and the bending force acting on the caulked portion of the support 16 is received by the bending force of the entire supporting film 20. It becomes possible to disperse, and it is possible to preferably prevent the support tool 16 from being damaged.

The film material used as the support film 20 and the method of attaching the support film 20 to the connecting portion can be appropriately selected. However, if the assembly work for assembling the flexible tube body is easy, the flexible tube 10 and the support 16 can be easily assembled. It is most preferable to use a heat-shrinkable tube made of resin from the viewpoint that the connecting portion with and can be suitably reinforced. By heating the heat-shrinkable tube, the heat-shrinkable tube can be easily adhered to the outer surface of the object to be attached, and can be used very suitably as the support film 20 for covering the flexible tube 10 and the support 20.

When the support film 20 is formed by using the heat-shrinkable tube 30, the heat-shrinkable tube 30 is externally inserted in the connecting portion between the flexible tube 10 and the support 16 as shown in FIG. By heating
The heat-shrinkable tube 30 is shrunk so that the flexible tube 10 and the support 16 are closely adhered to each other. Since the heat-shrinkable tube 30 is extremely heat-shrinkable, the flexible tube 10 and the support 16 can be easily adhered to each other, and the flexible tube 10 and the support 16 are integrally adhered to each other. It has the effect of reinforcing with a predetermined strength.

When the support film 20 is formed using the heat-shrinkable tube 30, the heat-shrinkable tube 30 is used.
It is necessary to perform heat treatment or the like so as to maintain flexibility in the state of being heat treated. As a material of the heat-shrinkable tube 30, polyester resin is most effective from the viewpoint of holding performance and the like. However, even a vinyl chloride resin is effective to some extent. As an embodiment, in the example using the polyester resin, the supporting film 20 having the required strength and flexibility could be obtained by heating at about 400 ° C. for 30 seconds.

The durability of the flexible tube body which was used as the support film 20 using the heat-shrinkable tube 30 was compared with the conventional example by a bending test. The flexible tube used in the test has an outer diameter of 13 mm, and the support 16 has an outer diameter of 14.5 mm. The heat-shrinkable tube used is a polyester resin having a thickness of 75 mm and a length of 100 mm. The test method was to repeat the left-right reciprocation and the front-reciprocal reciprocation with the flexible tube once left-right reciprocating once and back-and-forth reciprocating once, and observe the damage situation of the caulked portion of the support 16. The test result is 5 for the conventional flexible tube body that does not use the support film 20.
The support 16 was damaged by bending 000 times, while the support film 20 using the heat-shrinkable tube was not damaged up to 9000 times.

As described above, when the support film 20 is attached across the connecting portion of the flexible tube 10 and the support 16, particularly when the support film 20 formed of polyester resin is used, when the flexible tube 10 is bent. In addition, the bending force acting on the connecting portion between the flexible tube 10 and the support 16 can be effectively dispersed, and the durability of the support 16 can be significantly improved, which is extremely effective. In addition, as described above, the method of forming the support film 20 using the heat-shrinkable tube 30 is the flexible tube 10 and the support 16
It is preferable in that it can effectively hold the connecting portion of the above and has a suitable holding action as the support film 20. Further, the method of using the heat-shrinkable tube 30 has an advantage that it can be mounted by heat treatment, and thus is extremely easy as a method of forming the support film 20.

In the above embodiment, the support film 20 is used.
Is mounted only in the vicinity of the connecting portion between the flexible tube 10 and the support 16, but suitable durability can be similarly obtained even when the range in which the support film 20 is mounted is expanded. For example, it is of course possible to use the heat-shrinkable tube 30 for covering the entire length of the flexible tube 10 including the above-mentioned connecting portion, and the method for covering the support film 20 in this way also
Similar durability can be obtained as a flexible tube body.

Various colored products are provided as the heat-shrinkable tube 30, and if the entire flexible tube 10 is covered with the colored heat-shrinkable tube 30, it can be provided as a colored flexible tube body. There is also an advantage that it can be provided as a product using a flexible tube body that does not look good in the past. The product using this flexible tube is a support film 2
By the action of 0, it can be provided as a very durable product.

In the above embodiment, an example in which the flexible tube body is applied to a microphone stand has been described, but it goes without saying that the flexible tube body is not limited to the microphone stand, and a product in which one end of the flexible tube is fixed by a support such as a lighting fixture is used , Can be applied in exactly the same way. The length and diameter of the flexible tube are not particularly limited, and the range in which the support film 20 is mounted and the like can be appropriately selected depending on the product.

[0021]

As described above, the flexible tube body according to the present invention acts on the support when the flexible tube is tilted by covering the connecting portion between the flexible tube and the support with the support film. The bending force is dispersed by the support film, and it is possible to prevent the bending force from concentrating on the connecting portion with the support tool, and thereby, it is possible to suitably improve the durability of the flexible tube body. In addition, by using a heat-shrinkable tube as the support film, it is possible to exert an action as a suitable support film, and it is possible to obtain a remarkable effect such that the production of a flexible tube body equipped with the support film becomes extremely easy. .

[Brief description of drawings]

FIG. 1 is a perspective view of an example in which a flexible tube body is applied to a microphone stand.

FIG. 2 is a perspective view showing an example of a microphone stand using a conventional flexible tube body.

[Explanation of symbols]

 10 flexible tube 12 support stand 14 microphone 16 support tool 20 support film 30 heat shrinkable tube

Claims (4)

[Claims] 1. A flexible tube body in which one end of a tiltable flexible tube is fitted and fixed in a pipe-shaped support tool, wherein the flexible tube and the support tube are provided at a connecting portion between the flexible tube and the support tool. A flexible tube body characterized in that the support tube is covered with an outer surface of the flexible tube and the outer surface of the support tool in close contact with the support film. 2. The flexible tube body according to claim 1, wherein the support film is provided by heat-shrinking a heat-shrinkable tube formed in a cylindrical shape. 3. The flexible tube body according to claim 2, wherein the support film is made of a polyester resin. 4. The flexible tube body according to claim 2, wherein the supporting film is provided along with the connecting portion over the entire length of the flexible tube.