JPH08327726A - Structure of wave transmitter-receiver protecting device - Google Patents

Abstract

PURPOSE: To provide the structure of a wave transmitter-receiver protecting device which makes it possible to work a sound insulating material readily to the main body part of a dome, raises no problem of peeling during a short period, and is excellent in sound insulation property and durability. CONSTITUTION: A cavity part 11 formed in the lower part on the side of a bow 2 contains a wave transmitter-receiver 12 a hull is fitted with a sonar-dome main body 14 made of rubber, wherein sound insulating material 13 formed in a tile shape made of rubber is embedded so as to cover the cavity part 11. The sonar-dome main body 14 is constituted of an inner rubber layer 16 comprising contamination-proof rubber, wherein a reinforcing layer 15 formed by bundling wires or the like is embedded, and an outer rubber layer 18 comprising contamination-proof rubber arranged with an interval being provided from thickness adjusting rubber 17. A beat part 15a at the terminal end part of the reinforcing layer 15 is fixed to an attaching metal fitting 1 to the hull by using a clamp 1a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a transmitter / receiver protection device, and more specifically, a transmitter / receiver (acoustic sensor) installed in a cavity formed in the lower part of the bow side of an observation ship or the like.
The present invention relates to a sound insulation structure for a sonar dome made of rubber that effectively protects the vehicle from noise generated from its own ship.

[0002]

2. Description of the Related Art Conventionally, a sonar dome made of rubber for protecting a transmitter / receiver (acoustic sensor) mounted on an observation ship is
Attached to the bottom of the ship to improve acoustic performance,
The so-called keel dome type has been changed to the so-called bow dome type, which is attached to the bow. That is, in order to reduce the influence of engine noise and vibration generated from the ship, etc., and underwater noise generated from other equipment and propellers,
As shown in FIGS. 2 and 3, it tends to be attached to the bow 2 side of the hull 1.

With the tendency of mounting the sonar dome 4 made of rubber for protecting the transducer 3 on the bow 2 side in this way, the dome body 5 having a small sound transmission loss is largely projected forward on the bow 2 side. Noise Q generated from hull 1
Is unprotected against.

[0004]

By the way, as shown in FIG. 4, the noise Q generated from the hull 1 is incident on the transducer 3, and the noise Q generated in the dome body 5 is tiled inside. There is also a method of attaching the sound insulating material 6 of No. 1, but it is difficult to attach the sound insulating material 6 according to the curvature R of the dome main body portion 5,
There is room for improvement because the workability is poor and the attached sound insulation material 6 may be peeled off in a short period of time.

The present invention has been devised in view of the above-mentioned conventional problems, and a sound insulating material can be easily applied to the dome body, and there is no problem of peeling in a short period of time. An object of the present invention is to provide a structure of a transducer protection device having excellent durability.

[0006]

In order to achieve the above object, the present invention comprises a sonar dome body comprising an inner rubber layer having a reinforcing layer embedded therein and an outer rubber layer separated by a thickness adjusting rubber. The gist of the present invention is that a sound insulating material is integrally embedded in the rubber portion outside the measuring range of the container.

The sound insulation material is a rubber tile,
Further, the sound insulating material is disposed in a thick rubber portion other than the measurement range of the wave transmitter / receiver and is integrally molded during vulcanization.

[0008]

The present invention is constructed as described above, and the noise insulating material for reflecting the noise coming from the hull and reducing the noise in the sonar dome is formed in the shape of a rubber tile,
When manufacturing this tile-shaped sound insulation material, that is, by arranging the sound insulation material on the inner rubber layer outside the measuring range of the transducer, and embedding it integrally during vulcanization. It is possible to solve problems such as workability and peeling.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted. FIG. 1 is a partially enlarged cross-sectional view of a transmitter / receiver protection device 10 embodying the present invention. A transmitter / receiver 12 is installed in a cavity portion 11 formed in the lower portion on the bow 2 side. A rubber sonar dome main body 14 in which a sound insulating material 13 formed in a rubber tile shape is embedded so as to cover it is attached to the hull.

The sonar dome body 14 has an inner layer rubber 16 made of an antifouling rubber in which a reinforcing layer 15 in which wires or the like are bundled is embedded, and an outer layer rubber layer made of an antifouling rubber provided with a thickness adjusting rubber 17 interposed therebetween. The beat portion 15a at the end portion of the reinforcing layer 15 is fixed to the fitting 1 to the hull using the clamp 1a. The tile-shaped sound insulation material 13 is embedded in the thickness adjusting rubber 17 of the portion Z other than the measurement range X of the transducer 12 and the sound insulation material 13 is the measurement range X of the transducer 12.
It is disposed in a portion of the thickness adjusting rubber 17 having a large thickness other than the above portion and is integrally molded during vulcanization.

As described above, the sound insulating material 13 formed in the shape of a tile made of rubber has a thickness of the thickness adjusting rubber 17 of the portion Z other than the measurement range X of the transducer 12 which is preliminarily formed when the sonar dome body 14 is molded. By arranging it in a portion and integrally molding it at the time of vulcanization molding, the work of attaching it later can be omitted, and it does not peel off during use and has good durability. Furthermore, since the sound insulating material 13 is embedded in the thickness adjusting rubber 17, the smoothness of the surface can be ensured.

[0012]

As described above, the sonar dome body according to the present invention comprises an inner rubber layer having a reinforcing layer embedded therein and an outer rubber layer with a thickness adjusting rubber interposed therebetween. Since the sound insulation material was integrally embedded in the sonar dome body made of steel, the sound insulation material can be easily applied to the dome body portion and the construction workability can be improved,
There is no problem of peeling in a short period of time, and there is an effect that it can have excellent sound insulation performance and durability.

[Brief description of drawings]

FIG. 1 is a partially enlarged cross-sectional view of a transmitter / receiver protection device embodying the present invention.

FIG. 2 is a front view on the bow side of the hull showing a conventional sonar dome mounted state.

FIG. 3 is a side view on the bow side of the hull showing a conventional sonar dome mounted state.

FIG. 4 is a partially enlarged sectional view showing a mounting structure of a conventional sonar dome.

[Explanation of symbols]

 1 Metal fittings on the hull 2 Bow 10 Transducer protection device 11 Cavity 12 Transducer 13 Sound insulation 14 Sonar dome body 15 Reinforcing layer 15a Bead 16 Inner layer rubber 17 Outer layer rubber 18 Outer layer X Transducer Measuring range Z Area other than measuring range of transducer

Claims (3)

[Claims] 1. A structure of a transducer protection device comprising a transducer installed in a cavity formed in the lower part of the bow side, and a rubber sonar dome body attached to the hull so as to cover the cavity. The sonar dome body is composed of an inner rubber layer having a reinforcing layer embedded therein and an outer rubber layer separated by a thickness adjusting rubber, and a sound insulating material is integrally formed in the rubber sonar dome body outside the measuring range of the transducer. The structure of the transmitter / receiver protection device characterized by being buried in the. 2. The structure of the transducer protection device according to claim 1, wherein the sound insulating material is a tile made of rubber. 3. The sound transmitting / receiving device according to claim 1, wherein the sound insulating material is arranged in a thick rubber portion other than a measurement range of the wave transmitter / receiver and integrally molded during vulcanization. Structure of wave protector.